From 844a65636793d284526ff7d623ef477ed4473ab4 Mon Sep 17 00:00:00 2001 From: Matt Ranostay Date: Fri, 4 Mar 2016 22:55:25 -0800 Subject: iio: potentiometer: tpl0102: change i2c functionality return code Change i2c_check_functionality condition check return from ENOTSUPP to EOPNOTSUPP which is now the standard return code. Signed-off-by: Matt Ranostay Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/potentiometer/tpl0102.c b/drivers/iio/potentiometer/tpl0102.c index 313124b..5c304d4 100644 --- a/drivers/iio/potentiometer/tpl0102.c +++ b/drivers/iio/potentiometer/tpl0102.c @@ -118,7 +118,7 @@ static int tpl0102_probe(struct i2c_client *client, if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA)) - return -ENOTSUPP; + return -EOPNOTSUPP; indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); if (!indio_dev) -- cgit v0.10.2 From 7a948c5e05febd23ee8e61db95c3dc96737fe17f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Gr=C3=A9gor=20Boirie?= Date: Tue, 1 Mar 2016 11:31:37 +0100 Subject: iio:pressure:ms5611: complete DT support Add device-tree ID tables and document bindings. Signed-off-by: Gregor Boirie Acked-by: Rob Herring Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/pressure/ms5611.txt b/Documentation/devicetree/bindings/iio/pressure/ms5611.txt new file mode 100644 index 0000000..17bca86 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/pressure/ms5611.txt @@ -0,0 +1,19 @@ +MEAS ms5611 family pressure sensors + +Pressure sensors from MEAS Switzerland with SPI and I2C bus interfaces. + +Required properties: +- compatible: "meas,ms5611" or "meas,ms5607" +- reg: the I2C address or SPI chip select the device will respond to + +Optional properties: +- vdd-supply: an optional regulator that needs to be on to provide VDD + power to the sensor. + +Example: + +ms5607@77 { + compatible = "meas,ms5607"; + reg = <0x77>; + vdd-supply = <&ldo_3v3_gnss>; +}; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 44ddc98..7733f8c 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -136,6 +136,7 @@ lsi LSI Corp. (LSI Logic) lltc Linear Technology Corporation marvell Marvell Technology Group Ltd. maxim Maxim Integrated Products +meas Measurement Specialties mediatek MediaTek Inc. melexis Melexis N.V. merrii Merrii Technology Co., Ltd. diff --git a/drivers/iio/pressure/ms5611_i2c.c b/drivers/iio/pressure/ms5611_i2c.c index 7f6fc8e..57a8f2c 100644 --- a/drivers/iio/pressure/ms5611_i2c.c +++ b/drivers/iio/pressure/ms5611_i2c.c @@ -17,6 +17,7 @@ #include #include #include +#include #include "ms5611.h" @@ -113,6 +114,17 @@ static int ms5611_i2c_remove(struct i2c_client *client) return ms5611_remove(i2c_get_clientdata(client)); } +#if defined(CONFIG_OF) +static const struct of_device_id ms5611_i2c_matches[] = { + { .compatible = "meas,ms5611" }, + { .compatible = "ms5611" }, + { .compatible = "meas,ms5607" }, + { .compatible = "ms5607" }, + { } +}; +MODULE_DEVICE_TABLE(of, ms5611_i2c_matches); +#endif + static const struct i2c_device_id ms5611_id[] = { { "ms5611", MS5611 }, { "ms5607", MS5607 }, @@ -123,6 +135,7 @@ MODULE_DEVICE_TABLE(i2c, ms5611_id); static struct i2c_driver ms5611_driver = { .driver = { .name = "ms5611", + .of_match_table = of_match_ptr(ms5611_i2c_matches) }, .id_table = ms5611_id, .probe = ms5611_i2c_probe, diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c index 5cc009e..7ec0c64 100644 --- a/drivers/iio/pressure/ms5611_spi.c +++ b/drivers/iio/pressure/ms5611_spi.c @@ -12,6 +12,7 @@ #include #include #include +#include #include "ms5611.h" @@ -114,6 +115,17 @@ static int ms5611_spi_remove(struct spi_device *spi) return ms5611_remove(spi_get_drvdata(spi)); } +#if defined(CONFIG_OF) +static const struct of_device_id ms5611_spi_matches[] = { + { .compatible = "meas,ms5611" }, + { .compatible = "ms5611" }, + { .compatible = "meas,ms5607" }, + { .compatible = "ms5607" }, + { } +}; +MODULE_DEVICE_TABLE(of, ms5611_spi_matches); +#endif + static const struct spi_device_id ms5611_id[] = { { "ms5611", MS5611 }, { "ms5607", MS5607 }, @@ -124,6 +136,7 @@ MODULE_DEVICE_TABLE(spi, ms5611_id); static struct spi_driver ms5611_driver = { .driver = { .name = "ms5611", + .of_match_table = of_match_ptr(ms5611_spi_matches) }, .id_table = ms5611_id, .probe = ms5611_spi_probe, -- cgit v0.10.2 From 033691a9a12f684c68f443f3676806dd64011295 Mon Sep 17 00:00:00 2001 From: Gregor Boirie Date: Tue, 1 Mar 2016 11:31:38 +0100 Subject: iio:pressure:ms5611: oversampling rate support Add support for setting and retrieving OverSampling Rate independently for each of the temperature and pressure channels. This allows userspace to fine tune hardware sampling process according to the following tradeoffs : * the higher the OSR, the finer the resolution ; * the higher the OSR, the lower the noise ; BUT: * the higher the OSR, the larger the drift ; * the higher the OSR, the longer the response time, i.e. less samples per unit of time. Signed-off-by: Gregor Boirie Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h index 8b08e4b..d725a307 100644 --- a/drivers/iio/pressure/ms5611.h +++ b/drivers/iio/pressure/ms5611.h @@ -19,12 +19,6 @@ #define MS5611_RESET 0x1e #define MS5611_READ_ADC 0x00 #define MS5611_READ_PROM_WORD 0xA0 -#define MS5611_START_TEMP_CONV 0x58 -#define MS5611_START_PRESSURE_CONV 0x48 - -#define MS5611_CONV_TIME_MIN 9040 -#define MS5611_CONV_TIME_MAX 10000 - #define MS5611_PROM_WORDS_NB 8 enum { @@ -39,10 +33,24 @@ struct ms5611_chip_info { s32 *temp, s32 *pressure); }; +/* + * OverSampling Rate descriptor. + * Warning: cmd MUST be kept aligned on a word boundary (see + * m5611_spi_read_adc_temp_and_pressure in ms5611_spi.c). + */ +struct ms5611_osr { + unsigned long conv_usec; + u8 cmd; + unsigned short rate; +}; + struct ms5611_state { void *client; struct mutex lock; + const struct ms5611_osr *pressure_osr; + const struct ms5611_osr *temp_osr; + int (*reset)(struct device *dev); int (*read_prom_word)(struct device *dev, int index, u16 *word); int (*read_adc_temp_and_pressure)(struct device *dev, diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c index 992ad8d..37dbc04 100644 --- a/drivers/iio/pressure/ms5611_core.c +++ b/drivers/iio/pressure/ms5611_core.c @@ -18,11 +18,44 @@ #include #include +#include #include #include #include #include "ms5611.h" +#define MS5611_INIT_OSR(_cmd, _conv_usec, _rate) \ + { .cmd = _cmd, .conv_usec = _conv_usec, .rate = _rate } + +static const struct ms5611_osr ms5611_avail_pressure_osr[] = { + MS5611_INIT_OSR(0x40, 600, 256), + MS5611_INIT_OSR(0x42, 1170, 512), + MS5611_INIT_OSR(0x44, 2280, 1024), + MS5611_INIT_OSR(0x46, 4540, 2048), + MS5611_INIT_OSR(0x48, 9040, 4096) +}; + +static const struct ms5611_osr ms5611_avail_temp_osr[] = { + MS5611_INIT_OSR(0x50, 600, 256), + MS5611_INIT_OSR(0x52, 1170, 512), + MS5611_INIT_OSR(0x54, 2280, 1024), + MS5611_INIT_OSR(0x56, 4540, 2048), + MS5611_INIT_OSR(0x58, 9040, 4096) +}; + +static const char ms5611_show_osr[] = "256 512 1024 2048 4096"; + +static IIO_CONST_ATTR(oversampling_ratio_available, ms5611_show_osr); + +static struct attribute *ms5611_attributes[] = { + &iio_const_attr_oversampling_ratio_available.dev_attr.attr, + NULL, +}; + +static const struct attribute_group ms5611_attribute_group = { + .attrs = ms5611_attributes, +}; + static bool ms5611_prom_is_valid(u16 *prom, size_t len) { int i, j; @@ -239,11 +272,70 @@ static int ms5611_read_raw(struct iio_dev *indio_dev, default: return -EINVAL; } + case IIO_CHAN_INFO_OVERSAMPLING_RATIO: + if (chan->type != IIO_TEMP && chan->type != IIO_PRESSURE) + break; + mutex_lock(&st->lock); + if (chan->type == IIO_TEMP) + *val = (int)st->temp_osr->rate; + else + *val = (int)st->pressure_osr->rate; + mutex_unlock(&st->lock); + return IIO_VAL_INT; } return -EINVAL; } +static const struct ms5611_osr *ms5611_find_osr(int rate, + const struct ms5611_osr *osr, + size_t count) +{ + unsigned int r; + + for (r = 0; r < count; r++) + if ((unsigned short)rate == osr[r].rate) + break; + if (r >= count) + return NULL; + return &osr[r]; +} + +static int ms5611_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct ms5611_state *st = iio_priv(indio_dev); + const struct ms5611_osr *osr = NULL; + + if (mask != IIO_CHAN_INFO_OVERSAMPLING_RATIO) + return -EINVAL; + + if (chan->type == IIO_TEMP) + osr = ms5611_find_osr(val, ms5611_avail_temp_osr, + ARRAY_SIZE(ms5611_avail_temp_osr)); + else if (chan->type == IIO_PRESSURE) + osr = ms5611_find_osr(val, ms5611_avail_pressure_osr, + ARRAY_SIZE(ms5611_avail_pressure_osr)); + if (!osr) + return -EINVAL; + + mutex_lock(&st->lock); + + if (iio_buffer_enabled(indio_dev)) { + mutex_unlock(&st->lock); + return -EBUSY; + } + + if (chan->type == IIO_TEMP) + st->temp_osr = osr; + else + st->pressure_osr = osr; + + mutex_unlock(&st->lock); + return 0; +} + static const unsigned long ms5611_scan_masks[] = {0x3, 0}; static struct ms5611_chip_info chip_info_tbl[] = { @@ -259,7 +351,8 @@ static const struct iio_chan_spec ms5611_channels[] = { { .type = IIO_PRESSURE, .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) | - BIT(IIO_CHAN_INFO_SCALE), + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), .scan_index = 0, .scan_type = { .sign = 's', @@ -271,7 +364,8 @@ static const struct iio_chan_spec ms5611_channels[] = { { .type = IIO_TEMP, .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) | - BIT(IIO_CHAN_INFO_SCALE), + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), .scan_index = 1, .scan_type = { .sign = 's', @@ -285,6 +379,8 @@ static const struct iio_chan_spec ms5611_channels[] = { static const struct iio_info ms5611_info = { .read_raw = &ms5611_read_raw, + .write_raw = &ms5611_write_raw, + .attrs = &ms5611_attribute_group, .driver_module = THIS_MODULE, }; @@ -319,6 +415,11 @@ int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, mutex_init(&st->lock); st->chip_info = &chip_info_tbl[type]; + st->temp_osr = + &ms5611_avail_temp_osr[ARRAY_SIZE(ms5611_avail_temp_osr) - 1]; + st->pressure_osr = + &ms5611_avail_pressure_osr[ARRAY_SIZE(ms5611_avail_pressure_osr) + - 1]; indio_dev->dev.parent = dev; indio_dev->name = name; indio_dev->info = &ms5611_info; diff --git a/drivers/iio/pressure/ms5611_i2c.c b/drivers/iio/pressure/ms5611_i2c.c index 57a8f2c..55fb5fc 100644 --- a/drivers/iio/pressure/ms5611_i2c.c +++ b/drivers/iio/pressure/ms5611_i2c.c @@ -63,23 +63,23 @@ static int ms5611_i2c_read_adc_temp_and_pressure(struct device *dev, { int ret; struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); + const struct ms5611_osr *osr = st->temp_osr; - ret = i2c_smbus_write_byte(st->client, MS5611_START_TEMP_CONV); + ret = i2c_smbus_write_byte(st->client, osr->cmd); if (ret < 0) return ret; - usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX); - + usleep_range(osr->conv_usec, osr->conv_usec + (osr->conv_usec / 10UL)); ret = ms5611_i2c_read_adc(st, temp); if (ret < 0) return ret; - ret = i2c_smbus_write_byte(st->client, MS5611_START_PRESSURE_CONV); + osr = st->pressure_osr; + ret = i2c_smbus_write_byte(st->client, osr->cmd); if (ret < 0) return ret; - usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX); - + usleep_range(osr->conv_usec, osr->conv_usec + (osr->conv_usec / 10UL)); return ms5611_i2c_read_adc(st, pressure); } diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c index 7ec0c64..7600483 100644 --- a/drivers/iio/pressure/ms5611_spi.c +++ b/drivers/iio/pressure/ms5611_spi.c @@ -56,28 +56,29 @@ static int ms5611_spi_read_adc(struct device *dev, s32 *val) static int ms5611_spi_read_adc_temp_and_pressure(struct device *dev, s32 *temp, s32 *pressure) { - u8 cmd; int ret; struct ms5611_state *st = iio_priv(dev_to_iio_dev(dev)); + const struct ms5611_osr *osr = st->temp_osr; - cmd = MS5611_START_TEMP_CONV; - ret = spi_write_then_read(st->client, &cmd, 1, NULL, 0); + /* + * Warning: &osr->cmd MUST be aligned on a word boundary since used as + * 2nd argument (void*) of spi_write_then_read. + */ + ret = spi_write_then_read(st->client, &osr->cmd, 1, NULL, 0); if (ret < 0) return ret; - usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX); - + usleep_range(osr->conv_usec, osr->conv_usec + (osr->conv_usec / 10UL)); ret = ms5611_spi_read_adc(dev, temp); if (ret < 0) return ret; - cmd = MS5611_START_PRESSURE_CONV; - ret = spi_write_then_read(st->client, &cmd, 1, NULL, 0); + osr = st->pressure_osr; + ret = spi_write_then_read(st->client, &osr->cmd, 1, NULL, 0); if (ret < 0) return ret; - usleep_range(MS5611_CONV_TIME_MIN, MS5611_CONV_TIME_MAX); - + usleep_range(osr->conv_usec, osr->conv_usec + (osr->conv_usec / 10UL)); return ms5611_spi_read_adc(dev, pressure); } -- cgit v0.10.2 From 43d33f7458383ff6ce9838fca7b78b9b64fb988a Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Thu, 3 Mar 2016 17:09:13 +0100 Subject: iio:adc:at91-sama5d2: fix typo Fix typo in the name of a macro. Signed-off-by: Ludovic Desroches Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index dbee13a..33bacec 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -140,7 +140,7 @@ /* Version Register */ #define AT91_SAMA5D2_VERSION 0xfc -#define AT91_AT91_SAMA5D2_CHAN(num, addr) \ +#define AT91_SAMA5D2_CHAN(num, addr) \ { \ .type = IIO_VOLTAGE, \ .channel = num, \ @@ -185,18 +185,18 @@ struct at91_adc_state { }; static const struct iio_chan_spec at91_adc_channels[] = { - AT91_AT91_SAMA5D2_CHAN(0, 0x50), - AT91_AT91_SAMA5D2_CHAN(1, 0x54), - AT91_AT91_SAMA5D2_CHAN(2, 0x58), - AT91_AT91_SAMA5D2_CHAN(3, 0x5c), - AT91_AT91_SAMA5D2_CHAN(4, 0x60), - AT91_AT91_SAMA5D2_CHAN(5, 0x64), - AT91_AT91_SAMA5D2_CHAN(6, 0x68), - AT91_AT91_SAMA5D2_CHAN(7, 0x6c), - AT91_AT91_SAMA5D2_CHAN(8, 0x70), - AT91_AT91_SAMA5D2_CHAN(9, 0x74), - AT91_AT91_SAMA5D2_CHAN(10, 0x78), - AT91_AT91_SAMA5D2_CHAN(11, 0x7c), + AT91_SAMA5D2_CHAN(0, 0x50), + AT91_SAMA5D2_CHAN(1, 0x54), + AT91_SAMA5D2_CHAN(2, 0x58), + AT91_SAMA5D2_CHAN(3, 0x5c), + AT91_SAMA5D2_CHAN(4, 0x60), + AT91_SAMA5D2_CHAN(5, 0x64), + AT91_SAMA5D2_CHAN(6, 0x68), + AT91_SAMA5D2_CHAN(7, 0x6c), + AT91_SAMA5D2_CHAN(8, 0x70), + AT91_SAMA5D2_CHAN(9, 0x74), + AT91_SAMA5D2_CHAN(10, 0x78), + AT91_SAMA5D2_CHAN(11, 0x7c), }; static unsigned at91_adc_startup_time(unsigned startup_time_min, -- cgit v0.10.2 From f0fa15cce13d5987c50907eb98846d13e2b4d9ca Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Thu, 3 Mar 2016 17:09:14 +0100 Subject: iio:adc:at91-sama5d2: fix identation Remove some extra tabs. Signed-off-by: Ludovic Desroches Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index 33bacec..5bc038f 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -92,13 +92,13 @@ /* Last Converted Data Register */ #define AT91_SAMA5D2_LCDR 0x20 /* Interrupt Enable Register */ -#define AT91_SAMA5D2_IER 0x24 +#define AT91_SAMA5D2_IER 0x24 /* Interrupt Disable Register */ -#define AT91_SAMA5D2_IDR 0x28 +#define AT91_SAMA5D2_IDR 0x28 /* Interrupt Mask Register */ -#define AT91_SAMA5D2_IMR 0x2c +#define AT91_SAMA5D2_IMR 0x2c /* Interrupt Status Register */ -#define AT91_SAMA5D2_ISR 0x30 +#define AT91_SAMA5D2_ISR 0x30 /* Last Channel Trigger Mode Register */ #define AT91_SAMA5D2_LCTMR 0x34 /* Last Channel Compare Window Register */ @@ -106,17 +106,17 @@ /* Overrun Status Register */ #define AT91_SAMA5D2_OVER 0x3c /* Extended Mode Register */ -#define AT91_SAMA5D2_EMR 0x40 +#define AT91_SAMA5D2_EMR 0x40 /* Compare Window Register */ -#define AT91_SAMA5D2_CWR 0x44 +#define AT91_SAMA5D2_CWR 0x44 /* Channel Gain Register */ -#define AT91_SAMA5D2_CGR 0x48 +#define AT91_SAMA5D2_CGR 0x48 /* Channel Offset Register */ -#define AT91_SAMA5D2_COR 0x4c +#define AT91_SAMA5D2_COR 0x4c /* Channel Data Register 0 */ #define AT91_SAMA5D2_CDR0 0x50 /* Analog Control Register */ -#define AT91_SAMA5D2_ACR 0x94 +#define AT91_SAMA5D2_ACR 0x94 /* Touchscreen Mode Register */ #define AT91_SAMA5D2_TSMR 0xb0 /* Touchscreen X Position Register */ @@ -130,7 +130,7 @@ /* Correction Select Register */ #define AT91_SAMA5D2_COSR 0xd0 /* Correction Value Register */ -#define AT91_SAMA5D2_CVR 0xd4 +#define AT91_SAMA5D2_CVR 0xd4 /* Channel Error Correction Register */ #define AT91_SAMA5D2_CECR 0xd8 /* Write Protection Mode Register */ -- cgit v0.10.2 From 55c0c530f7113d98cb1a0d42f15b8abe5e4b6928 Mon Sep 17 00:00:00 2001 From: Gregor Boirie Date: Thu, 3 Mar 2016 11:44:03 +0100 Subject: iio:magnetometer:ak8975: fix uninitialized chipset MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ak_def_array bounds are not properly checked in case of ACPI matching failure. GCC warns with the following message at line 799: ‘chipset’ may be used uninitialized in this function. Signed-off-by: Gregor Boirie Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 9c5c9ef..11059b2 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -774,8 +774,11 @@ static int ak8975_probe(struct i2c_client *client, if (id) { chipset = (enum asahi_compass_chipset)(id->driver_data); name = id->name; - } else if (ACPI_HANDLE(&client->dev)) + } else if (ACPI_HANDLE(&client->dev)) { name = ak8975_match_acpi_device(&client->dev, &chipset); + if (!name) + return -ENODEV; + } else return -ENOSYS; -- cgit v0.10.2 From d3546af67f4937075d0747adb3bf56d3c46b32f0 Mon Sep 17 00:00:00 2001 From: Gregor Boirie Date: Thu, 3 Mar 2016 11:44:04 +0100 Subject: iio:magnetometer:ak8975: remove unused field Remove unused struct ak8975_data attrs field. Signed-off-by: Gregor Boirie Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 11059b2..896b13e3 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -361,7 +361,6 @@ static const struct ak_def ak_def_array[AK_MAX_TYPE] = { struct ak8975_data { struct i2c_client *client; const struct ak_def *def; - struct attribute_group attrs; struct mutex lock; u8 asa[3]; long raw_to_gauss[3]; -- cgit v0.10.2 From 63d5d525cbbc8938d9fa3d6d6fbd4183e784b6e9 Mon Sep 17 00:00:00 2001 From: Gregor Boirie Date: Thu, 3 Mar 2016 11:44:05 +0100 Subject: iio:magnetometer:ak8975: power regulator support Add support for an optional regulator which, if found into device-tree, will power on device at probing time. The regulator is declared into ak8975 DTS entry as a "vdd-supply" property. Signed-off-by: Gregor Boirie Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt index 011679f..34a3206 100644 --- a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt +++ b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt @@ -8,6 +8,7 @@ Required properties: Optional properties: - gpios : should be device tree identifier of the magnetometer DRDY pin + - vdd-supply: an optional regulator that needs to be on to provide VDD Example: @@ -15,4 +16,5 @@ ak8975@0c { compatible = "asahi-kasei,ak8975"; reg = <0x0c>; gpios = <&gpj0 7 0>; + vdd-supply = <&ldo_3v3_gnss>; }; diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 896b13e3..72c03d9 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include @@ -379,8 +380,23 @@ static int ak8975_who_i_am(struct i2c_client *client, enum asahi_compass_chipset type) { u8 wia_val[2]; + struct regulator *vdd = devm_regulator_get_optional(&client->dev, + "vdd"); int ret; + /* Enable attached regulator if any. */ + if (!IS_ERR(vdd)) { + ret = regulator_enable(vdd); + if (ret) { + dev_err(&client->dev, "Failed to enable Vdd supply\n"); + return ret; + } + } else { + ret = PTR_ERR(vdd); + if (ret != -ENODEV) + return ret; + } + /* * Signature for each device: * Device | WIA1 | WIA2 -- cgit v0.10.2 From 8b8ff3a6a6e2325662e3af174f54b47487d3ed75 Mon Sep 17 00:00:00 2001 From: Martin Kepplinger Date: Thu, 3 Mar 2016 09:24:01 +0100 Subject: iio: mma8452: coding style fixes fix checkpatch issues like "space before tabs", too long lines or alignment. Signed-off-by: Martin Kepplinger Signed-off-by: Christoph Muellner Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index 7f4994f..17d72bc 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -357,7 +357,8 @@ static int mma8452_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT_PLUS_MICRO; case IIO_CHAN_INFO_CALIBBIAS: ret = i2c_smbus_read_byte_data(data->client, - MMA8452_OFF_X + chan->scan_index); + MMA8452_OFF_X + + chan->scan_index); if (ret < 0) return ret; @@ -418,7 +419,7 @@ fail: return ret; } -/* returns >0 if in freefall mode, 0 if not or <0 if an error occured */ +/* returns >0 if in freefall mode, 0 if not or <0 if an error occurred */ static int mma8452_freefall_mode_enabled(struct mma8452_data *data) { int val; @@ -668,7 +669,8 @@ static int mma8452_read_event_config(struct iio_dev *indio_dev, if (ret < 0) return ret; - return !!(ret & BIT(chan->scan_index + chip->ev_cfg_chan_shift)); + return !!(ret & BIT(chan->scan_index + + chip->ev_cfg_chan_shift)); default: return -EINVAL; } @@ -1003,7 +1005,7 @@ static const struct mma_chip_info mma_chip_info_table[] = { * bit. * The userspace interface uses m/s^2 and we declare micro units * So scale factor for 12 bit here is given by: - * g * N * 1000000 / 2048 for N = 2, 4, 8 and g=9.80665 + * g * N * 1000000 / 2048 for N = 2, 4, 8 and g=9.80665 */ .mma_scales = { {0, 2394}, {0, 4788}, {0, 9577} }, .ev_cfg = MMA8452_TRANSIENT_CFG, -- cgit v0.10.2 From e866853d67868ac0f7e0779d19aaad07285c9ff3 Mon Sep 17 00:00:00 2001 From: Martin Kepplinger Date: Thu, 3 Mar 2016 09:24:02 +0100 Subject: iio: mma8452: avoid switching to active because of config change The devices' config registers can only be changed in standby mode. Up until now the driver just held the device *always* active, so for changing a config it was *always* necessary to switch to standby. For upcoming support for runtime pm, the device can as well be in standby mode. Instead of putting runtime pm functions in there, just keep the device in standby if it already is. This section is protected by a lock after all. Signed-off-by: Martin Kepplinger Signed-off-by: Christoph Muellner Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index 17d72bc..9c4a84a 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -393,24 +393,47 @@ static int mma8452_active(struct mma8452_data *data) data->ctrl_reg1); } +/* returns >0 if active, 0 if in standby and <0 on error */ +static int mma8452_is_active(struct mma8452_data *data) +{ + int reg; + + reg = i2c_smbus_read_byte_data(data->client, MMA8452_CTRL_REG1); + if (reg < 0) + return reg; + + return reg & MMA8452_CTRL_ACTIVE; +} + static int mma8452_change_config(struct mma8452_data *data, u8 reg, u8 val) { int ret; + int is_active; mutex_lock(&data->lock); - /* config can only be changed when in standby */ - ret = mma8452_standby(data); - if (ret < 0) + is_active = mma8452_is_active(data); + if (is_active < 0) { + ret = is_active; goto fail; + } + + /* config can only be changed when in standby */ + if (is_active > 0) { + ret = mma8452_standby(data); + if (ret < 0) + goto fail; + } ret = i2c_smbus_write_byte_data(data->client, reg, val); if (ret < 0) goto fail; - ret = mma8452_active(data); - if (ret < 0) - goto fail; + if (is_active > 0) { + ret = mma8452_active(data); + if (ret < 0) + goto fail; + } ret = 0; fail: -- cgit v0.10.2 From 96c0cb2bbfe0a58bd0c37cf34d50a20f9cd75aa8 Mon Sep 17 00:00:00 2001 From: Martin Kepplinger Date: Thu, 3 Mar 2016 09:24:03 +0100 Subject: iio: mma8452: add support for runtime power management This adds support for runtime power management and, if configured, activates automatic standby after 2 seconds of inactivity. Inactivity means no read of acceleration values and no events triggered or activated. If CONFIG_PM is not set, this doesn't change anything for existing users. Signed-off-by: Martin Kepplinger Signed-off-by: Christoph Muellner Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index 9c4a84a..5ca0d16 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -31,6 +31,7 @@ #include #include #include +#include #define MMA8452_STATUS 0x00 #define MMA8452_STATUS_DRDY (BIT(2) | BIT(1) | BIT(0)) @@ -92,6 +93,8 @@ #define MMA8652_DEVICE_ID 0x4a #define MMA8653_DEVICE_ID 0x5a +#define MMA8452_AUTO_SUSPEND_DELAY_MS 2000 + struct mma8452_data { struct i2c_client *client; struct mutex lock; @@ -172,6 +175,31 @@ static int mma8452_drdy(struct mma8452_data *data) return -EIO; } +static int mma8452_set_runtime_pm_state(struct i2c_client *client, bool on) +{ +#ifdef CONFIG_PM + int ret; + + if (on) { + ret = pm_runtime_get_sync(&client->dev); + } else { + pm_runtime_mark_last_busy(&client->dev); + ret = pm_runtime_put_autosuspend(&client->dev); + } + + if (ret < 0) { + dev_err(&client->dev, + "failed to change power state to %d\n", on); + if (on) + pm_runtime_put_noidle(&client->dev); + + return ret; + } +#endif + + return 0; +} + static int mma8452_read(struct mma8452_data *data, __be16 buf[3]) { int ret = mma8452_drdy(data); @@ -179,8 +207,16 @@ static int mma8452_read(struct mma8452_data *data, __be16 buf[3]) if (ret < 0) return ret; - return i2c_smbus_read_i2c_block_data(data->client, MMA8452_OUT_X, - 3 * sizeof(__be16), (u8 *)buf); + ret = mma8452_set_runtime_pm_state(data->client, true); + if (ret) + return ret; + + ret = i2c_smbus_read_i2c_block_data(data->client, MMA8452_OUT_X, + 3 * sizeof(__be16), (u8 *)buf); + + ret = mma8452_set_runtime_pm_state(data->client, false); + + return ret; } static ssize_t mma8452_show_int_plus_micros(char *buf, const int (*vals)[2], @@ -707,7 +743,11 @@ static int mma8452_write_event_config(struct iio_dev *indio_dev, { struct mma8452_data *data = iio_priv(indio_dev); const struct mma_chip_info *chip = data->chip_info; - int val; + int val, ret; + + ret = mma8452_set_runtime_pm_state(data->client, state); + if (ret) + return ret; switch (dir) { case IIO_EV_DIR_FALLING: @@ -1139,7 +1179,11 @@ static int mma8452_data_rdy_trigger_set_state(struct iio_trigger *trig, { struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); struct mma8452_data *data = iio_priv(indio_dev); - int reg; + int reg, ret; + + ret = mma8452_set_runtime_pm_state(data->client, state); + if (ret) + return ret; reg = i2c_smbus_read_byte_data(data->client, MMA8452_CTRL_REG4); if (reg < 0) @@ -1365,6 +1409,15 @@ static int mma8452_probe(struct i2c_client *client, goto buffer_cleanup; } + ret = pm_runtime_set_active(&client->dev); + if (ret < 0) + goto buffer_cleanup; + + pm_runtime_enable(&client->dev); + pm_runtime_set_autosuspend_delay(&client->dev, + MMA8452_AUTO_SUSPEND_DELAY_MS); + pm_runtime_use_autosuspend(&client->dev); + ret = iio_device_register(indio_dev); if (ret < 0) goto buffer_cleanup; @@ -1389,6 +1442,11 @@ static int mma8452_remove(struct i2c_client *client) struct iio_dev *indio_dev = i2c_get_clientdata(client); iio_device_unregister(indio_dev); + + pm_runtime_disable(&client->dev); + pm_runtime_set_suspended(&client->dev); + pm_runtime_put_noidle(&client->dev); + iio_triggered_buffer_cleanup(indio_dev); mma8452_trigger_cleanup(indio_dev); mma8452_standby(iio_priv(indio_dev)); @@ -1396,6 +1454,45 @@ static int mma8452_remove(struct i2c_client *client) return 0; } +#ifdef CONFIG_PM +static int mma8452_runtime_suspend(struct device *dev) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + struct mma8452_data *data = iio_priv(indio_dev); + int ret; + + mutex_lock(&data->lock); + ret = mma8452_standby(data); + mutex_unlock(&data->lock); + if (ret < 0) { + dev_err(&data->client->dev, "powering off device failed\n"); + return -EAGAIN; + } + + return 0; +} + +static int mma8452_runtime_resume(struct device *dev) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + struct mma8452_data *data = iio_priv(indio_dev); + int ret, sleep_val; + + ret = mma8452_active(data); + if (ret < 0) + return ret; + + ret = mma8452_get_odr_index(data); + sleep_val = 1000 / mma8452_samp_freq[ret][0]; + if (sleep_val < 20) + usleep_range(sleep_val * 1000, 20000); + else + msleep_interruptible(sleep_val); + + return 0; +} +#endif + #ifdef CONFIG_PM_SLEEP static int mma8452_suspend(struct device *dev) { @@ -1408,13 +1505,14 @@ static int mma8452_resume(struct device *dev) return mma8452_active(iio_priv(i2c_get_clientdata( to_i2c_client(dev)))); } - -static SIMPLE_DEV_PM_OPS(mma8452_pm_ops, mma8452_suspend, mma8452_resume); -#define MMA8452_PM_OPS (&mma8452_pm_ops) -#else -#define MMA8452_PM_OPS NULL #endif +static const struct dev_pm_ops mma8452_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(mma8452_suspend, mma8452_resume) + SET_RUNTIME_PM_OPS(mma8452_runtime_suspend, + mma8452_runtime_resume, NULL) +}; + static const struct i2c_device_id mma8452_id[] = { { "mma8452", mma8452 }, { "mma8453", mma8453 }, @@ -1428,7 +1526,7 @@ static struct i2c_driver mma8452_driver = { .driver = { .name = "mma8452", .of_match_table = of_match_ptr(mma8452_dt_ids), - .pm = MMA8452_PM_OPS, + .pm = &mma8452_pm_ops, }, .probe = mma8452_probe, .remove = mma8452_remove, -- cgit v0.10.2 From c816d9e7a57bd436b2cff8f48b0e8cff128f05db Mon Sep 17 00:00:00 2001 From: Matt Ranostay Date: Wed, 2 Mar 2016 19:18:12 -0800 Subject: iio: imu: mpu6050: fix possible NULL dereferences Fix possible null dereferencing of i2c and spi driver data. Signed-off-by: Matt Ranostay Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c index f581256..d0c0e20 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c @@ -117,6 +117,7 @@ static int inv_mpu_probe(struct i2c_client *client, struct inv_mpu6050_state *st; int result; const char *name = id ? id->name : NULL; + const int chip_type = id ? id->driver_data : 0; struct regmap *regmap; if (!i2c_check_functionality(client->adapter, @@ -131,7 +132,7 @@ static int inv_mpu_probe(struct i2c_client *client, } result = inv_mpu_core_probe(regmap, client->irq, name, - NULL, id->driver_data); + NULL, chip_type); if (result < 0) return result; diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c index dea6c43..7bcb8d8 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c @@ -46,6 +46,7 @@ static int inv_mpu_probe(struct spi_device *spi) struct regmap *regmap; const struct spi_device_id *id = spi_get_device_id(spi); const char *name = id ? id->name : NULL; + const int chip_type = id ? id->driver_data : 0; regmap = devm_regmap_init_spi(spi, &inv_mpu_regmap_config); if (IS_ERR(regmap)) { @@ -55,7 +56,7 @@ static int inv_mpu_probe(struct spi_device *spi) } return inv_mpu_core_probe(regmap, spi->irq, name, - inv_mpu_i2c_disable, id->driver_data); + inv_mpu_i2c_disable, chip_type); } static int inv_mpu_remove(struct spi_device *spi) -- cgit v0.10.2 From e84a41d5db891eab6f1f4a2625bb97f3c6415eee Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Fri, 4 Mar 2016 10:05:26 +0900 Subject: iio: adc: Fix build error of missing devm_ioremap_resource on UM The devres.o gets linked if HAS_IOMEM is present so on ARCH=um allyesconfig (COMPILE_TEST) failed with: drivers/built-in.o: In function `at91_adc_probe': at91-sama5d2_adc.c:(.text+0x48f548): undefined reference to `devm_ioremap_resource' Signed-off-by: Krzysztof Kozlowski Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 932de1f..a8819a0 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -134,6 +134,7 @@ config AT91_ADC config AT91_SAMA5D2_ADC tristate "Atmel AT91 SAMA5D2 ADC" depends on ARCH_AT91 || COMPILE_TEST + depends on HAS_IOMEM help Say yes here to build support for Atmel SAMA5D2 ADC which is available on SAMA5D2 SoC family. -- cgit v0.10.2 From 88ae3aedb8ec20a6b6ea8f7bd1990c0eb7c6f5d5 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 7 Mar 2016 15:22:31 +0100 Subject: staging:iio:adis16204: Remove adis16204 driver The ADIS16204 part has been obsoleted, which makes it hard to get the hardware to even test the driver. Considering this there is no expectation that the driver will be cleaned up and be able to move out of staging, so remove the driver. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/Kconfig b/drivers/staging/iio/accel/Kconfig index fa67da9..5bc9803 100644 --- a/drivers/staging/iio/accel/Kconfig +++ b/drivers/staging/iio/accel/Kconfig @@ -27,18 +27,6 @@ config ADIS16203 To compile this driver as a module, say M here: the module will be called adis16203. -config ADIS16204 - tristate "Analog Devices ADIS16204 Programmable High-g Digital Impact Sensor and Recorder" - depends on SPI - select IIO_ADIS_LIB - select IIO_ADIS_LIB_BUFFER if IIO_BUFFER - help - Say Y here to build support for Analog Devices adis16204 Programmable - High-g Digital Impact Sensor and Recorder. - - To compile this driver as a module, say M here: the module will be - called adis16204. - config ADIS16209 tristate "Analog Devices ADIS16209 Dual-Axis Digital Inclinometer and Accelerometer" depends on SPI diff --git a/drivers/staging/iio/accel/Makefile b/drivers/staging/iio/accel/Makefile index 1ed137f..8ad9732 100644 --- a/drivers/staging/iio/accel/Makefile +++ b/drivers/staging/iio/accel/Makefile @@ -8,9 +8,6 @@ obj-$(CONFIG_ADIS16201) += adis16201.o adis16203-y := adis16203_core.o obj-$(CONFIG_ADIS16203) += adis16203.o -adis16204-y := adis16204_core.o -obj-$(CONFIG_ADIS16204) += adis16204.o - adis16209-y := adis16209_core.o obj-$(CONFIG_ADIS16209) += adis16209.o diff --git a/drivers/staging/iio/accel/adis16204.h b/drivers/staging/iio/accel/adis16204.h deleted file mode 100644 index 0b23f0b..0000000 --- a/drivers/staging/iio/accel/adis16204.h +++ /dev/null @@ -1,68 +0,0 @@ -#ifndef SPI_ADIS16204_H_ -#define SPI_ADIS16204_H_ - -#define ADIS16204_STARTUP_DELAY 220 /* ms */ - -#define ADIS16204_FLASH_CNT 0x00 /* Flash memory write count */ -#define ADIS16204_SUPPLY_OUT 0x02 /* Output, power supply */ -#define ADIS16204_XACCL_OUT 0x04 /* Output, x-axis accelerometer */ -#define ADIS16204_YACCL_OUT 0x06 /* Output, y-axis accelerometer */ -#define ADIS16204_AUX_ADC 0x08 /* Output, auxiliary ADC input */ -#define ADIS16204_TEMP_OUT 0x0A /* Output, temperature */ -#define ADIS16204_X_PEAK_OUT 0x0C /* Twos complement */ -#define ADIS16204_Y_PEAK_OUT 0x0E /* Twos complement */ -#define ADIS16204_XACCL_NULL 0x10 /* Calibration, x-axis acceleration offset null */ -#define ADIS16204_YACCL_NULL 0x12 /* Calibration, y-axis acceleration offset null */ -#define ADIS16204_XACCL_SCALE 0x14 /* X-axis scale factor calibration register */ -#define ADIS16204_YACCL_SCALE 0x16 /* Y-axis scale factor calibration register */ -#define ADIS16204_XY_RSS_OUT 0x18 /* XY combined acceleration (RSS) */ -#define ADIS16204_XY_PEAK_OUT 0x1A /* Peak, XY combined output (RSS) */ -#define ADIS16204_CAP_BUF_1 0x1C /* Capture buffer output register 1 */ -#define ADIS16204_CAP_BUF_2 0x1E /* Capture buffer output register 2 */ -#define ADIS16204_ALM_MAG1 0x20 /* Alarm 1 amplitude threshold */ -#define ADIS16204_ALM_MAG2 0x22 /* Alarm 2 amplitude threshold */ -#define ADIS16204_ALM_CTRL 0x28 /* Alarm control */ -#define ADIS16204_CAPT_PNTR 0x2A /* Capture register address pointer */ -#define ADIS16204_AUX_DAC 0x30 /* Auxiliary DAC data */ -#define ADIS16204_GPIO_CTRL 0x32 /* General-purpose digital input/output control */ -#define ADIS16204_MSC_CTRL 0x34 /* Miscellaneous control */ -#define ADIS16204_SMPL_PRD 0x36 /* Internal sample period (rate) control */ -#define ADIS16204_AVG_CNT 0x38 /* Operation, filter configuration */ -#define ADIS16204_SLP_CNT 0x3A /* Operation, sleep mode control */ -#define ADIS16204_DIAG_STAT 0x3C /* Diagnostics, system status register */ -#define ADIS16204_GLOB_CMD 0x3E /* Operation, system command register */ - -/* MSC_CTRL */ -#define ADIS16204_MSC_CTRL_PWRUP_SELF_TEST BIT(10) /* Self-test at power-on: 1 = disabled, 0 = enabled */ -#define ADIS16204_MSC_CTRL_SELF_TEST_EN BIT(8) /* Self-test enable */ -#define ADIS16204_MSC_CTRL_DATA_RDY_EN BIT(2) /* Data-ready enable: 1 = enabled, 0 = disabled */ -#define ADIS16204_MSC_CTRL_ACTIVE_HIGH BIT(1) /* Data-ready polarity: 1 = active high, 0 = active low */ -#define ADIS16204_MSC_CTRL_DATA_RDY_DIO2 BIT(0) /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */ - -/* DIAG_STAT */ -#define ADIS16204_DIAG_STAT_ALARM2 BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ -#define ADIS16204_DIAG_STAT_ALARM1 BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ -#define ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT 5 /* Self-test diagnostic error flag: 1 = error condition, - 0 = normal operation */ -#define ADIS16204_DIAG_STAT_SPI_FAIL_BIT 3 /* SPI communications failure */ -#define ADIS16204_DIAG_STAT_FLASH_UPT_BIT 2 /* Flash update failure */ -#define ADIS16204_DIAG_STAT_POWER_HIGH_BIT 1 /* Power supply above 3.625 V */ -#define ADIS16204_DIAG_STAT_POWER_LOW_BIT 0 /* Power supply below 2.975 V */ - -/* GLOB_CMD */ -#define ADIS16204_GLOB_CMD_SW_RESET BIT(7) -#define ADIS16204_GLOB_CMD_CLEAR_STAT BIT(4) -#define ADIS16204_GLOB_CMD_FACTORY_CAL BIT(1) - -#define ADIS16204_ERROR_ACTIVE BIT(14) - -enum adis16204_scan { - ADIS16204_SCAN_ACC_X, - ADIS16204_SCAN_ACC_Y, - ADIS16204_SCAN_ACC_XY, - ADIS16204_SCAN_SUPPLY, - ADIS16204_SCAN_AUX_ADC, - ADIS16204_SCAN_TEMP, -}; - -#endif /* SPI_ADIS16204_H_ */ diff --git a/drivers/staging/iio/accel/adis16204_core.c b/drivers/staging/iio/accel/adis16204_core.c deleted file mode 100644 index 20a9df6..0000000 --- a/drivers/staging/iio/accel/adis16204_core.c +++ /dev/null @@ -1,253 +0,0 @@ -/* - * ADIS16204 Programmable High-g Digital Impact Sensor and Recorder - * - * Copyright 2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include "adis16204.h" - -/* Unique to this driver currently */ - -static const u8 adis16204_addresses[][2] = { - [ADIS16204_SCAN_ACC_X] = { ADIS16204_XACCL_NULL, ADIS16204_X_PEAK_OUT }, - [ADIS16204_SCAN_ACC_Y] = { ADIS16204_YACCL_NULL, ADIS16204_Y_PEAK_OUT }, - [ADIS16204_SCAN_ACC_XY] = { 0, ADIS16204_XY_PEAK_OUT }, -}; - -static int adis16204_read_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int *val, int *val2, - long mask) -{ - struct adis *st = iio_priv(indio_dev); - int ret; - int bits; - u8 addr; - s16 val16; - int addrind; - - switch (mask) { - case IIO_CHAN_INFO_RAW: - return adis_single_conversion(indio_dev, chan, - ADIS16204_ERROR_ACTIVE, val); - case IIO_CHAN_INFO_SCALE: - switch (chan->type) { - case IIO_VOLTAGE: - if (chan->channel == 0) { - *val = 1; - *val2 = 220000; /* 1.22 mV */ - } else { - *val = 0; - *val2 = 610000; /* 0.61 mV */ - } - return IIO_VAL_INT_PLUS_MICRO; - case IIO_TEMP: - *val = -470; /* 0.47 C */ - *val2 = 0; - return IIO_VAL_INT_PLUS_MICRO; - case IIO_ACCEL: - *val = 0; - switch (chan->channel2) { - case IIO_MOD_X: - case IIO_MOD_ROOT_SUM_SQUARED_X_Y: - *val2 = IIO_G_TO_M_S_2(17125); /* 17.125 mg */ - break; - case IIO_MOD_Y: - case IIO_MOD_Z: - *val2 = IIO_G_TO_M_S_2(8407); /* 8.407 mg */ - break; - } - return IIO_VAL_INT_PLUS_MICRO; - default: - return -EINVAL; - } - break; - case IIO_CHAN_INFO_OFFSET: - *val = 25000 / -470 - 1278; /* 25 C = 1278 */ - return IIO_VAL_INT; - case IIO_CHAN_INFO_CALIBBIAS: - case IIO_CHAN_INFO_PEAK: - if (mask == IIO_CHAN_INFO_CALIBBIAS) { - bits = 12; - addrind = 0; - } else { /* PEAK_SEPARATE */ - bits = 14; - addrind = 1; - } - mutex_lock(&indio_dev->mlock); - addr = adis16204_addresses[chan->scan_index][addrind]; - ret = adis_read_reg_16(st, addr, &val16); - if (ret) { - mutex_unlock(&indio_dev->mlock); - return ret; - } - val16 &= (1 << bits) - 1; - val16 = (s16)(val16 << (16 - bits)) >> (16 - bits); - *val = val16; - mutex_unlock(&indio_dev->mlock); - return IIO_VAL_INT; - } - return -EINVAL; -} - -static int adis16204_write_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int val, - int val2, - long mask) -{ - struct adis *st = iio_priv(indio_dev); - int bits; - s16 val16; - u8 addr; - - switch (mask) { - case IIO_CHAN_INFO_CALIBBIAS: - switch (chan->type) { - case IIO_ACCEL: - bits = 12; - break; - default: - return -EINVAL; - } - val16 = val & ((1 << bits) - 1); - addr = adis16204_addresses[chan->scan_index][1]; - return adis_write_reg_16(st, addr, val16); - } - return -EINVAL; -} - -static const struct iio_chan_spec adis16204_channels[] = { - ADIS_SUPPLY_CHAN(ADIS16204_SUPPLY_OUT, ADIS16204_SCAN_SUPPLY, 0, 12), - ADIS_AUX_ADC_CHAN(ADIS16204_AUX_ADC, ADIS16204_SCAN_AUX_ADC, 0, 12), - ADIS_TEMP_CHAN(ADIS16204_TEMP_OUT, ADIS16204_SCAN_TEMP, 0, 12), - ADIS_ACCEL_CHAN(X, ADIS16204_XACCL_OUT, ADIS16204_SCAN_ACC_X, - BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), - 0, 14), - ADIS_ACCEL_CHAN(Y, ADIS16204_YACCL_OUT, ADIS16204_SCAN_ACC_Y, - BIT(IIO_CHAN_INFO_CALIBBIAS) | BIT(IIO_CHAN_INFO_PEAK), - 0, 14), - ADIS_ACCEL_CHAN(ROOT_SUM_SQUARED_X_Y, ADIS16204_XY_RSS_OUT, - ADIS16204_SCAN_ACC_XY, BIT(IIO_CHAN_INFO_PEAK), 0, 14), - IIO_CHAN_SOFT_TIMESTAMP(5), -}; - -static const struct iio_info adis16204_info = { - .read_raw = &adis16204_read_raw, - .write_raw = &adis16204_write_raw, - .update_scan_mode = adis_update_scan_mode, - .driver_module = THIS_MODULE, -}; - -static const char * const adis16204_status_error_msgs[] = { - [ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT] = "Self test failure", - [ADIS16204_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure", - [ADIS16204_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed", - [ADIS16204_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V", - [ADIS16204_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 2.975V", -}; - -static const struct adis_data adis16204_data = { - .read_delay = 20, - .msc_ctrl_reg = ADIS16204_MSC_CTRL, - .glob_cmd_reg = ADIS16204_GLOB_CMD, - .diag_stat_reg = ADIS16204_DIAG_STAT, - - .self_test_mask = ADIS16204_MSC_CTRL_SELF_TEST_EN, - .startup_delay = ADIS16204_STARTUP_DELAY, - - .status_error_msgs = adis16204_status_error_msgs, - .status_error_mask = BIT(ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT) | - BIT(ADIS16204_DIAG_STAT_SPI_FAIL_BIT) | - BIT(ADIS16204_DIAG_STAT_FLASH_UPT_BIT) | - BIT(ADIS16204_DIAG_STAT_POWER_HIGH_BIT) | - BIT(ADIS16204_DIAG_STAT_POWER_LOW_BIT), -}; - -static int adis16204_probe(struct spi_device *spi) -{ - int ret; - struct adis *st; - struct iio_dev *indio_dev; - - /* setup the industrialio driver allocated elements */ - indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); - if (!indio_dev) - return -ENOMEM; - st = iio_priv(indio_dev); - /* this is only used for removal purposes */ - spi_set_drvdata(spi, indio_dev); - - indio_dev->name = spi->dev.driver->name; - indio_dev->dev.parent = &spi->dev; - indio_dev->info = &adis16204_info; - indio_dev->channels = adis16204_channels; - indio_dev->num_channels = ARRAY_SIZE(adis16204_channels); - indio_dev->modes = INDIO_DIRECT_MODE; - - ret = adis_init(st, indio_dev, spi, &adis16204_data); - if (ret) - return ret; - - ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL); - if (ret) - return ret; - - /* Get the device into a sane initial state */ - ret = adis_initial_startup(st); - if (ret) - goto error_cleanup_buffer_trigger; - ret = iio_device_register(indio_dev); - if (ret) - goto error_cleanup_buffer_trigger; - - return 0; - -error_cleanup_buffer_trigger: - adis_cleanup_buffer_and_trigger(st, indio_dev); - return ret; -} - -static int adis16204_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct adis *st = iio_priv(indio_dev); - - iio_device_unregister(indio_dev); - adis_cleanup_buffer_and_trigger(st, indio_dev); - - return 0; -} - -static struct spi_driver adis16204_driver = { - .driver = { - .name = "adis16204", - }, - .probe = adis16204_probe, - .remove = adis16204_remove, -}; -module_spi_driver(adis16204_driver); - -MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); -MODULE_DESCRIPTION("ADIS16204 High-g Digital Impact Sensor and Recorder"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("spi:adis16204"); -- cgit v0.10.2 From 2bcdb3f2e05f011b7456d363a6fc5a0177196587 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 7 Mar 2016 15:22:32 +0100 Subject: staging:iio:adis16220: Remove adis16220 driver The ADIS16220 part has been obsoleted, which makes it hard to get the hardware to even test the driver. Considering this there is no expectation that the driver will be cleaned up and be able to move out of staging, so remove the driver. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/Kconfig b/drivers/staging/iio/accel/Kconfig index 5bc9803..f066aa3 100644 --- a/drivers/staging/iio/accel/Kconfig +++ b/drivers/staging/iio/accel/Kconfig @@ -39,17 +39,6 @@ config ADIS16209 To compile this driver as a module, say M here: the module will be called adis16209. -config ADIS16220 - tristate "Analog Devices ADIS16220 Programmable Digital Vibration Sensor" - depends on SPI - select IIO_ADIS_LIB - help - Say Y here to build support for Analog Devices adis16220 programmable - digital vibration sensor. - - To compile this driver as a module, say M here: the module will be - called adis16220. - config ADIS16240 tristate "Analog Devices ADIS16240 Programmable Impact Sensor and Recorder" depends on SPI diff --git a/drivers/staging/iio/accel/Makefile b/drivers/staging/iio/accel/Makefile index 8ad9732..415329c 100644 --- a/drivers/staging/iio/accel/Makefile +++ b/drivers/staging/iio/accel/Makefile @@ -11,9 +11,6 @@ obj-$(CONFIG_ADIS16203) += adis16203.o adis16209-y := adis16209_core.o obj-$(CONFIG_ADIS16209) += adis16209.o -adis16220-y := adis16220_core.o -obj-$(CONFIG_ADIS16220) += adis16220.o - adis16240-y := adis16240_core.o obj-$(CONFIG_ADIS16240) += adis16240.o diff --git a/drivers/staging/iio/accel/adis16220.h b/drivers/staging/iio/accel/adis16220.h deleted file mode 100644 index eab8633..0000000 --- a/drivers/staging/iio/accel/adis16220.h +++ /dev/null @@ -1,140 +0,0 @@ -#ifndef SPI_ADIS16220_H_ -#define SPI_ADIS16220_H_ - -#include - -#define ADIS16220_STARTUP_DELAY 220 /* ms */ - -/* Flash memory write count */ -#define ADIS16220_FLASH_CNT 0x00 -/* Control, acceleration offset adjustment control */ -#define ADIS16220_ACCL_NULL 0x02 -/* Control, AIN1 offset adjustment control */ -#define ADIS16220_AIN1_NULL 0x04 -/* Control, AIN2 offset adjustment control */ -#define ADIS16220_AIN2_NULL 0x06 -/* Output, power supply during capture */ -#define ADIS16220_CAPT_SUPPLY 0x0A -/* Output, temperature during capture */ -#define ADIS16220_CAPT_TEMP 0x0C -/* Output, peak acceleration during capture */ -#define ADIS16220_CAPT_PEAKA 0x0E -/* Output, peak AIN1 level during capture */ -#define ADIS16220_CAPT_PEAK1 0x10 -/* Output, peak AIN2 level during capture */ -#define ADIS16220_CAPT_PEAK2 0x12 -/* Output, capture buffer for acceleration */ -#define ADIS16220_CAPT_BUFA 0x14 -/* Output, capture buffer for AIN1 */ -#define ADIS16220_CAPT_BUF1 0x16 -/* Output, capture buffer for AIN2 */ -#define ADIS16220_CAPT_BUF2 0x18 -/* Control, capture buffer address pointer */ -#define ADIS16220_CAPT_PNTR 0x1A -/* Control, capture control register */ -#define ADIS16220_CAPT_CTRL 0x1C -/* Control, capture period (automatic mode) */ -#define ADIS16220_CAPT_PRD 0x1E -/* Control, Alarm A, acceleration peak threshold */ -#define ADIS16220_ALM_MAGA 0x20 -/* Control, Alarm 1, AIN1 peak threshold */ -#define ADIS16220_ALM_MAG1 0x22 -/* Control, Alarm 2, AIN2 peak threshold */ -#define ADIS16220_ALM_MAG2 0x24 -/* Control, Alarm S, peak threshold */ -#define ADIS16220_ALM_MAGS 0x26 -/* Control, alarm configuration register */ -#define ADIS16220_ALM_CTRL 0x28 -/* Control, general I/O configuration */ -#define ADIS16220_GPIO_CTRL 0x32 -/* Control, self-test control, AIN configuration */ -#define ADIS16220_MSC_CTRL 0x34 -/* Control, digital I/O configuration */ -#define ADIS16220_DIO_CTRL 0x36 -/* Control, filter configuration */ -#define ADIS16220_AVG_CNT 0x38 -/* Status, system status */ -#define ADIS16220_DIAG_STAT 0x3C -/* Control, system commands */ -#define ADIS16220_GLOB_CMD 0x3E -/* Status, self-test response */ -#define ADIS16220_ST_DELTA 0x40 -/* Lot Identification Code 1 */ -#define ADIS16220_LOT_ID1 0x52 -/* Lot Identification Code 2 */ -#define ADIS16220_LOT_ID2 0x54 -/* Product identifier; convert to decimal = 16220 */ -#define ADIS16220_PROD_ID 0x56 -/* Serial number */ -#define ADIS16220_SERIAL_NUM 0x58 - -#define ADIS16220_CAPTURE_SIZE 2048 - -/* MSC_CTRL */ -#define ADIS16220_MSC_CTRL_SELF_TEST_EN BIT(8) -#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN1 BIT(1) -#define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN2 BIT(0) - -/* DIO_CTRL */ -#define ADIS16220_MSC_CTRL_DIO2_BUSY_IND (BIT(5) | BIT(4)) -#define ADIS16220_MSC_CTRL_DIO1_BUSY_IND (BIT(3) | BIT(2)) -#define ADIS16220_MSC_CTRL_DIO2_ACT_HIGH BIT(1) -#define ADIS16220_MSC_CTRL_DIO1_ACT_HIGH BIT(0) - -/* DIAG_STAT */ -/* AIN2 sample > ALM_MAG2 */ -#define ADIS16220_DIAG_STAT_ALM_MAG2 BIT(14) -/* AIN1 sample > ALM_MAG1 */ -#define ADIS16220_DIAG_STAT_ALM_MAG1 BIT(13) -/* Acceleration sample > ALM_MAGA */ -#define ADIS16220_DIAG_STAT_ALM_MAGA BIT(12) -/* Error condition programmed into ALM_MAGS[11:0] and ALM_CTRL[5:4] is true */ -#define ADIS16220_DIAG_STAT_ALM_MAGS BIT(11) -/* |Peak value in AIN2 data capture| > ALM_MAG2 */ -#define ADIS16220_DIAG_STAT_PEAK_AIN2 BIT(10) -/* |Peak value in AIN1 data capture| > ALM_MAG1 */ -#define ADIS16220_DIAG_STAT_PEAK_AIN1 BIT(9) -/* |Peak value in acceleration data capture| > ALM_MAGA */ -#define ADIS16220_DIAG_STAT_PEAK_ACCEL BIT(8) -/* Data ready, capture complete */ -#define ADIS16220_DIAG_STAT_DATA_RDY BIT(7) -#define ADIS16220_DIAG_STAT_FLASH_CHK BIT(6) -#define ADIS16220_DIAG_STAT_SELF_TEST BIT(5) -/* Capture period violation/interruption */ -#define ADIS16220_DIAG_STAT_VIOLATION_BIT 4 -/* SPI communications failure */ -#define ADIS16220_DIAG_STAT_SPI_FAIL_BIT 3 -/* Flash update failure */ -#define ADIS16220_DIAG_STAT_FLASH_UPT_BIT 2 -/* Power supply above 3.625 V */ -#define ADIS16220_DIAG_STAT_POWER_HIGH_BIT 1 -/* Power supply below 3.15 V */ -#define ADIS16220_DIAG_STAT_POWER_LOW_BIT 0 - -/* GLOB_CMD */ -#define ADIS16220_GLOB_CMD_SW_RESET BIT(7) -#define ADIS16220_GLOB_CMD_SELF_TEST BIT(2) -#define ADIS16220_GLOB_CMD_PWR_DOWN BIT(1) - -#define ADIS16220_MAX_TX 2048 -#define ADIS16220_MAX_RX 2048 - -#define ADIS16220_SPI_BURST (u32)(1000 * 1000) -#define ADIS16220_SPI_FAST (u32)(2000 * 1000) - -/** - * struct adis16220_state - device instance specific data - * @adis: adis device - * @tx: transmit buffer - * @rx: receive buffer - * @buf_lock: mutex to protect tx and rx - **/ -struct adis16220_state { - struct adis adis; - - struct mutex buf_lock; - u8 tx[ADIS16220_MAX_TX] ____cacheline_aligned; - u8 rx[ADIS16220_MAX_RX]; -}; - -#endif /* SPI_ADIS16220_H_ */ diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c deleted file mode 100644 index d016521..0000000 --- a/drivers/staging/iio/accel/adis16220_core.c +++ /dev/null @@ -1,494 +0,0 @@ -/* - * ADIS16220 Programmable Digital Vibration Sensor driver - * - * Copyright 2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include "adis16220.h" - -static ssize_t adis16220_read_16bit(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); - struct iio_dev *indio_dev = dev_to_iio_dev(dev); - struct adis16220_state *st = iio_priv(indio_dev); - ssize_t ret; - u16 val; - - /* Take the iio_dev status lock */ - mutex_lock(&indio_dev->mlock); - ret = adis_read_reg_16(&st->adis, this_attr->address, &val); - mutex_unlock(&indio_dev->mlock); - if (ret) - return ret; - return sprintf(buf, "%u\n", val); -} - -static ssize_t adis16220_write_16bit(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t len) -{ - struct iio_dev *indio_dev = dev_to_iio_dev(dev); - struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); - struct adis16220_state *st = iio_priv(indio_dev); - int ret; - u16 val; - - ret = kstrtou16(buf, 10, &val); - if (ret) - goto error_ret; - ret = adis_write_reg_16(&st->adis, this_attr->address, val); - -error_ret: - return ret ? ret : len; -} - -static int adis16220_capture(struct iio_dev *indio_dev) -{ - struct adis16220_state *st = iio_priv(indio_dev); - int ret; - - /* initiates a manual data capture */ - ret = adis_write_reg_16(&st->adis, ADIS16220_GLOB_CMD, 0xBF08); - if (ret) - dev_err(&indio_dev->dev, "problem beginning capture"); - - usleep_range(10000, 11000); /* delay for capture to finish */ - - return ret; -} - -static ssize_t adis16220_write_capture(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t len) -{ - struct iio_dev *indio_dev = dev_to_iio_dev(dev); - bool val; - int ret; - - ret = strtobool(buf, &val); - if (ret) - return ret; - if (!val) - return -EINVAL; - ret = adis16220_capture(indio_dev); - if (ret) - return ret; - - return len; -} - -static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev, - char *buf, - loff_t off, - size_t count, - int addr) -{ - struct adis16220_state *st = iio_priv(indio_dev); - struct spi_transfer xfers[] = { - { - .tx_buf = st->tx, - .bits_per_word = 8, - .len = 2, - .cs_change = 1, - .delay_usecs = 25, - }, { - .tx_buf = st->tx, - .rx_buf = st->rx, - .bits_per_word = 8, - .cs_change = 1, - .delay_usecs = 25, - }, - }; - int ret; - int i; - - if (unlikely(!count)) - return count; - - if ((off >= ADIS16220_CAPTURE_SIZE) || (count & 1) || (off & 1)) - return -EINVAL; - - if (off + count > ADIS16220_CAPTURE_SIZE) - count = ADIS16220_CAPTURE_SIZE - off; - - /* write the begin position of capture buffer */ - ret = adis_write_reg_16(&st->adis, - ADIS16220_CAPT_PNTR, - off > 1); - if (ret) - return -EIO; - - /* read count/2 values from capture buffer */ - mutex_lock(&st->buf_lock); - - for (i = 0; i < count; i += 2) { - st->tx[i] = ADIS_READ_REG(addr); - st->tx[i + 1] = 0; - } - xfers[1].len = count; - - ret = spi_sync_transfer(st->adis.spi, xfers, ARRAY_SIZE(xfers)); - if (ret) { - mutex_unlock(&st->buf_lock); - return -EIO; - } - - memcpy(buf, st->rx, count); - - mutex_unlock(&st->buf_lock); - return count; -} - -static ssize_t adis16220_accel_bin_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, - char *buf, - loff_t off, - size_t count) -{ - struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj)); - - return adis16220_capture_buffer_read(indio_dev, buf, - off, count, - ADIS16220_CAPT_BUFA); -} - -static struct bin_attribute accel_bin = { - .attr = { - .name = "accel_bin", - .mode = S_IRUGO, - }, - .read = adis16220_accel_bin_read, - .size = ADIS16220_CAPTURE_SIZE, -}; - -static ssize_t adis16220_adc1_bin_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, - char *buf, loff_t off, - size_t count) -{ - struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj)); - - return adis16220_capture_buffer_read(indio_dev, buf, - off, count, - ADIS16220_CAPT_BUF1); -} - -static struct bin_attribute adc1_bin = { - .attr = { - .name = "in0_bin", - .mode = S_IRUGO, - }, - .read = adis16220_adc1_bin_read, - .size = ADIS16220_CAPTURE_SIZE, -}; - -static ssize_t adis16220_adc2_bin_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, - char *buf, loff_t off, - size_t count) -{ - struct iio_dev *indio_dev = dev_to_iio_dev(kobj_to_dev(kobj)); - - return adis16220_capture_buffer_read(indio_dev, buf, - off, count, - ADIS16220_CAPT_BUF2); -} - -static struct bin_attribute adc2_bin = { - .attr = { - .name = "in1_bin", - .mode = S_IRUGO, - }, - .read = adis16220_adc2_bin_read, - .size = ADIS16220_CAPTURE_SIZE, -}; - -#define IIO_DEV_ATTR_CAPTURE(_store) \ - IIO_DEVICE_ATTR(capture, S_IWUSR, NULL, _store, 0) - -static IIO_DEV_ATTR_CAPTURE(adis16220_write_capture); - -#define IIO_DEV_ATTR_CAPTURE_COUNT(_mode, _show, _store, _addr) \ - IIO_DEVICE_ATTR(capture_count, _mode, _show, _store, _addr) - -static IIO_DEV_ATTR_CAPTURE_COUNT(S_IWUSR | S_IRUGO, - adis16220_read_16bit, - adis16220_write_16bit, - ADIS16220_CAPT_PNTR); - -enum adis16220_channel { - in_supply, in_1, in_2, accel, temp -}; - -struct adis16220_address_spec { - u8 addr; - u8 bits; - bool sign; -}; - -/* Address / bits / signed */ -static const struct adis16220_address_spec adis16220_addresses[][3] = { - [in_supply] = { { ADIS16220_CAPT_SUPPLY, 12, 0 }, }, - [in_1] = { { ADIS16220_CAPT_BUF1, 16, 1 }, - { ADIS16220_AIN1_NULL, 16, 1 }, - { ADIS16220_CAPT_PEAK1, 16, 1 }, }, - [in_2] = { { ADIS16220_CAPT_BUF2, 16, 1 }, - { ADIS16220_AIN2_NULL, 16, 1 }, - { ADIS16220_CAPT_PEAK2, 16, 1 }, }, - [accel] = { { ADIS16220_CAPT_BUFA, 16, 1 }, - { ADIS16220_ACCL_NULL, 16, 1 }, - { ADIS16220_CAPT_PEAKA, 16, 1 }, }, - [temp] = { { ADIS16220_CAPT_TEMP, 12, 0 }, } -}; - -static int adis16220_read_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int *val, int *val2, - long mask) -{ - struct adis16220_state *st = iio_priv(indio_dev); - const struct adis16220_address_spec *addr; - int ret = -EINVAL; - int addrind = 0; - u16 uval; - s16 sval; - u8 bits; - - switch (mask) { - case IIO_CHAN_INFO_RAW: - addrind = 0; - break; - case IIO_CHAN_INFO_OFFSET: - if (chan->type == IIO_TEMP) { - *val = 25000 / -470 - 1278; /* 25 C = 1278 */ - return IIO_VAL_INT; - } - addrind = 1; - break; - case IIO_CHAN_INFO_PEAK: - addrind = 2; - break; - case IIO_CHAN_INFO_SCALE: - switch (chan->type) { - case IIO_TEMP: - *val = -470; /* -0.47 C */ - *val2 = 0; - return IIO_VAL_INT_PLUS_MICRO; - case IIO_ACCEL: - *val2 = IIO_G_TO_M_S_2(19073); /* 19.073 g */ - return IIO_VAL_INT_PLUS_MICRO; - case IIO_VOLTAGE: - if (chan->channel == 0) { - *val = 1; - *val2 = 220700; /* 1.2207 mV */ - } else { - /* Should really be dependent on VDD */ - *val2 = 305180; /* 305.18 uV */ - } - return IIO_VAL_INT_PLUS_MICRO; - default: - return -EINVAL; - } - default: - return -EINVAL; - } - addr = &adis16220_addresses[chan->address][addrind]; - if (addr->sign) { - ret = adis_read_reg_16(&st->adis, addr->addr, &sval); - if (ret) - return ret; - bits = addr->bits; - sval &= (1 << bits) - 1; - sval = (s16)(sval << (16 - bits)) >> (16 - bits); - *val = sval; - return IIO_VAL_INT; - } - ret = adis_read_reg_16(&st->adis, addr->addr, &uval); - if (ret) - return ret; - bits = addr->bits; - uval &= (1 << bits) - 1; - *val = uval; - return IIO_VAL_INT; -} - -static const struct iio_chan_spec adis16220_channels[] = { - { - .type = IIO_VOLTAGE, - .indexed = 1, - .channel = 0, - .extend_name = "supply", - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_SCALE), - .address = in_supply, - }, { - .type = IIO_ACCEL, - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_OFFSET) | - BIT(IIO_CHAN_INFO_SCALE) | - BIT(IIO_CHAN_INFO_PEAK), - .address = accel, - }, { - .type = IIO_TEMP, - .indexed = 1, - .channel = 0, - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_OFFSET) | - BIT(IIO_CHAN_INFO_SCALE), - .address = temp, - }, { - .type = IIO_VOLTAGE, - .indexed = 1, - .channel = 1, - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_OFFSET) | - BIT(IIO_CHAN_INFO_SCALE), - .address = in_1, - }, { - .type = IIO_VOLTAGE, - .indexed = 1, - .channel = 2, - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), - .address = in_2, - } -}; - -static struct attribute *adis16220_attributes[] = { - &iio_dev_attr_capture.dev_attr.attr, - &iio_dev_attr_capture_count.dev_attr.attr, - NULL -}; - -static const struct attribute_group adis16220_attribute_group = { - .attrs = adis16220_attributes, -}; - -static const struct iio_info adis16220_info = { - .attrs = &adis16220_attribute_group, - .driver_module = THIS_MODULE, - .read_raw = &adis16220_read_raw, -}; - -static const char * const adis16220_status_error_msgs[] = { - [ADIS16220_DIAG_STAT_VIOLATION_BIT] = "Capture period violation/interruption", - [ADIS16220_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure", - [ADIS16220_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed", - [ADIS16220_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 3.625V", - [ADIS16220_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 3.15V", -}; - -static const struct adis_data adis16220_data = { - .read_delay = 35, - .write_delay = 35, - .msc_ctrl_reg = ADIS16220_MSC_CTRL, - .glob_cmd_reg = ADIS16220_GLOB_CMD, - .diag_stat_reg = ADIS16220_DIAG_STAT, - - .self_test_mask = ADIS16220_MSC_CTRL_SELF_TEST_EN, - .startup_delay = ADIS16220_STARTUP_DELAY, - - .status_error_msgs = adis16220_status_error_msgs, - .status_error_mask = BIT(ADIS16220_DIAG_STAT_VIOLATION_BIT) | - BIT(ADIS16220_DIAG_STAT_SPI_FAIL_BIT) | - BIT(ADIS16220_DIAG_STAT_FLASH_UPT_BIT) | - BIT(ADIS16220_DIAG_STAT_POWER_HIGH_BIT) | - BIT(ADIS16220_DIAG_STAT_POWER_LOW_BIT), -}; - -static int adis16220_probe(struct spi_device *spi) -{ - int ret; - struct adis16220_state *st; - struct iio_dev *indio_dev; - - /* setup the industrialio driver allocated elements */ - indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); - if (!indio_dev) - return -ENOMEM; - - st = iio_priv(indio_dev); - /* this is only used for removal purposes */ - spi_set_drvdata(spi, indio_dev); - - indio_dev->name = spi->dev.driver->name; - indio_dev->dev.parent = &spi->dev; - indio_dev->info = &adis16220_info; - indio_dev->modes = INDIO_DIRECT_MODE; - indio_dev->channels = adis16220_channels; - indio_dev->num_channels = ARRAY_SIZE(adis16220_channels); - - ret = devm_iio_device_register(&spi->dev, indio_dev); - if (ret) - return ret; - - ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &accel_bin); - if (ret) - return ret; - - ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &adc1_bin); - if (ret) - goto error_rm_accel_bin; - - ret = sysfs_create_bin_file(&indio_dev->dev.kobj, &adc2_bin); - if (ret) - goto error_rm_adc1_bin; - - ret = adis_init(&st->adis, indio_dev, spi, &adis16220_data); - if (ret) - goto error_rm_adc2_bin; - /* Get the device into a sane initial state */ - ret = adis_initial_startup(&st->adis); - if (ret) - goto error_rm_adc2_bin; - return 0; - -error_rm_adc2_bin: - sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc2_bin); -error_rm_adc1_bin: - sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc1_bin); -error_rm_accel_bin: - sysfs_remove_bin_file(&indio_dev->dev.kobj, &accel_bin); - return ret; -} - -static int adis16220_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - - sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc2_bin); - sysfs_remove_bin_file(&indio_dev->dev.kobj, &adc1_bin); - sysfs_remove_bin_file(&indio_dev->dev.kobj, &accel_bin); - - return 0; -} - -static struct spi_driver adis16220_driver = { - .driver = { - .name = "adis16220", - }, - .probe = adis16220_probe, - .remove = adis16220_remove, -}; -module_spi_driver(adis16220_driver); - -MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>"); -MODULE_DESCRIPTION("Analog Devices ADIS16220 Digital Vibration Sensor"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("spi:adis16220"); -- cgit v0.10.2 From 1e52fefc9b0c481f8ca860e19781720fb5404383 Mon Sep 17 00:00:00 2001 From: Tiberiu Breana Date: Wed, 9 Mar 2016 14:06:14 +0200 Subject: iio: accel: Add support for the h3lis331dl accelerometer This commit adds support for STMicroelectronics h3lis331dl high-g accelerometer. The datasheet for this device can be found here: http://www.st.com/web/en/resource/technical/document/ datasheet/DM00053090.pdf Signed-off-by: Tiberiu Breana Reviewed-by: Denis Ciocca Acked-by: Denis Ciocca Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt index d4b87cc..71b7bdf 100644 --- a/Documentation/devicetree/bindings/iio/st-sensors.txt +++ b/Documentation/devicetree/bindings/iio/st-sensors.txt @@ -37,6 +37,7 @@ Accelerometers: - st,lsm330-accel - st,lsm303agr-accel - st,lis2dh12-accel +- st,h3lis331dl-accel Gyroscopes: - st,l3g4200d-gyro diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig index b0d3ecf..7636eec 100644 --- a/drivers/iio/accel/Kconfig +++ b/drivers/iio/accel/Kconfig @@ -64,7 +64,7 @@ config IIO_ST_ACCEL_3AXIS help Say yes here to build support for STMicroelectronics accelerometers: LSM303DLH, LSM303DLHC, LIS3DH, LSM330D, LSM330DL, LSM330DLC, - LIS331DLH, LSM303DL, LSM303DLM, LSM330, LIS2DH12. + LIS331DLH, LSM303DL, LSM303DLM, LSM330, LIS2DH12, H3LIS331DL. This driver can also be built as a module. If so, these modules will be created: diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h index 5d4a189..57f83a6 100644 --- a/drivers/iio/accel/st_accel.h +++ b/drivers/iio/accel/st_accel.h @@ -14,6 +14,7 @@ #include #include +#define H3LIS331DL_DRIVER_NAME "h3lis331dl_accel" #define LIS3LV02DL_ACCEL_DEV_NAME "lis3lv02dl_accel" #define LSM303DLHC_ACCEL_DEV_NAME "lsm303dlhc_accel" #define LIS3DH_ACCEL_DEV_NAME "lis3dh" diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c index a03a141..fee32e3 100644 --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -39,6 +39,9 @@ #define ST_ACCEL_FS_AVL_6G 6 #define ST_ACCEL_FS_AVL_8G 8 #define ST_ACCEL_FS_AVL_16G 16 +#define ST_ACCEL_FS_AVL_100G 100 +#define ST_ACCEL_FS_AVL_200G 200 +#define ST_ACCEL_FS_AVL_400G 400 /* CUSTOM VALUES FOR SENSOR 1 */ #define ST_ACCEL_1_WAI_EXP 0x33 @@ -181,6 +184,33 @@ #define ST_ACCEL_5_IG1_EN_MASK 0x08 #define ST_ACCEL_5_MULTIREAD_BIT false +/* CUSTOM VALUES FOR SENSOR 6 */ +#define ST_ACCEL_6_WAI_EXP 0x32 +#define ST_ACCEL_6_ODR_ADDR 0x20 +#define ST_ACCEL_6_ODR_MASK 0x18 +#define ST_ACCEL_6_ODR_AVL_50HZ_VAL 0x00 +#define ST_ACCEL_6_ODR_AVL_100HZ_VAL 0x01 +#define ST_ACCEL_6_ODR_AVL_400HZ_VAL 0x02 +#define ST_ACCEL_6_ODR_AVL_1000HZ_VAL 0x03 +#define ST_ACCEL_6_PW_ADDR 0x20 +#define ST_ACCEL_6_PW_MASK 0x20 +#define ST_ACCEL_6_FS_ADDR 0x23 +#define ST_ACCEL_6_FS_MASK 0x30 +#define ST_ACCEL_6_FS_AVL_100_VAL 0x00 +#define ST_ACCEL_6_FS_AVL_200_VAL 0x01 +#define ST_ACCEL_6_FS_AVL_400_VAL 0x03 +#define ST_ACCEL_6_FS_AVL_100_GAIN IIO_G_TO_M_S_2(49000) +#define ST_ACCEL_6_FS_AVL_200_GAIN IIO_G_TO_M_S_2(98000) +#define ST_ACCEL_6_FS_AVL_400_GAIN IIO_G_TO_M_S_2(195000) +#define ST_ACCEL_6_BDU_ADDR 0x23 +#define ST_ACCEL_6_BDU_MASK 0x80 +#define ST_ACCEL_6_DRDY_IRQ_ADDR 0x22 +#define ST_ACCEL_6_DRDY_IRQ_INT1_MASK 0x02 +#define ST_ACCEL_6_DRDY_IRQ_INT2_MASK 0x10 +#define ST_ACCEL_6_IHL_IRQ_ADDR 0x22 +#define ST_ACCEL_6_IHL_IRQ_MASK 0x80 +#define ST_ACCEL_6_MULTIREAD_BIT true + static const struct iio_chan_spec st_accel_8bit_channels[] = { ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), @@ -557,6 +587,68 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = { .multi_read_bit = ST_ACCEL_5_MULTIREAD_BIT, .bootime = 2, /* guess */ }, + { + .wai = ST_ACCEL_6_WAI_EXP, + .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, + .sensors_supported = { + [0] = H3LIS331DL_DRIVER_NAME, + }, + .ch = (struct iio_chan_spec *)st_accel_12bit_channels, + .odr = { + .addr = ST_ACCEL_6_ODR_ADDR, + .mask = ST_ACCEL_6_ODR_MASK, + .odr_avl = { + { 50, ST_ACCEL_6_ODR_AVL_50HZ_VAL }, + { 100, ST_ACCEL_6_ODR_AVL_100HZ_VAL, }, + { 400, ST_ACCEL_6_ODR_AVL_400HZ_VAL, }, + { 1000, ST_ACCEL_6_ODR_AVL_1000HZ_VAL, }, + }, + }, + .pw = { + .addr = ST_ACCEL_6_PW_ADDR, + .mask = ST_ACCEL_6_PW_MASK, + .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, + .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, + }, + .enable_axis = { + .addr = ST_SENSORS_DEFAULT_AXIS_ADDR, + .mask = ST_SENSORS_DEFAULT_AXIS_MASK, + }, + .fs = { + .addr = ST_ACCEL_6_FS_ADDR, + .mask = ST_ACCEL_6_FS_MASK, + .fs_avl = { + [0] = { + .num = ST_ACCEL_FS_AVL_100G, + .value = ST_ACCEL_6_FS_AVL_100_VAL, + .gain = ST_ACCEL_6_FS_AVL_100_GAIN, + }, + [1] = { + .num = ST_ACCEL_FS_AVL_200G, + .value = ST_ACCEL_6_FS_AVL_200_VAL, + .gain = ST_ACCEL_6_FS_AVL_200_GAIN, + }, + [2] = { + .num = ST_ACCEL_FS_AVL_400G, + .value = ST_ACCEL_6_FS_AVL_400_VAL, + .gain = ST_ACCEL_6_FS_AVL_400_GAIN, + }, + }, + }, + .bdu = { + .addr = ST_ACCEL_6_BDU_ADDR, + .mask = ST_ACCEL_6_BDU_MASK, + }, + .drdy_irq = { + .addr = ST_ACCEL_6_DRDY_IRQ_ADDR, + .mask_int1 = ST_ACCEL_6_DRDY_IRQ_INT1_MASK, + .mask_int2 = ST_ACCEL_6_DRDY_IRQ_INT2_MASK, + .addr_ihl = ST_ACCEL_6_IHL_IRQ_ADDR, + .mask_ihl = ST_ACCEL_6_IHL_IRQ_MASK, + }, + .multi_read_bit = ST_ACCEL_6_MULTIREAD_BIT, + .bootime = 2, + }, }; static int st_accel_read_raw(struct iio_dev *indio_dev, diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c index 294a32f..7333ee9 100644 --- a/drivers/iio/accel/st_accel_i2c.c +++ b/drivers/iio/accel/st_accel_i2c.c @@ -76,6 +76,10 @@ static const struct of_device_id st_accel_of_match[] = { .compatible = "st,lis2dh12-accel", .data = LIS2DH12_ACCEL_DEV_NAME, }, + { + .compatible = "st,h3lis331dl-accel", + .data = H3LIS331DL_DRIVER_NAME, + }, {}, }; MODULE_DEVICE_TABLE(of, st_accel_of_match); -- cgit v0.10.2 From e8731180fbf6fd45351b587d67cdc0685ce99a7a Mon Sep 17 00:00:00 2001 From: Martin Kepplinger Date: Wed, 9 Mar 2016 12:01:29 +0100 Subject: iio: mma8452: add support for FXLS8471Q This adds support for Freescale's (now NXP's) FXLS8471Q accelerometer. We use MMA8451Q's configuration because for what the driver supports, FXLS8471Q is the same. Support for FXLS8471Q's features (fast SPI interface and a larger FIFO, among others) can be added to this driver anytime. See it's datasheet for the details: http://cache.nxp.com/files/sensors/doc/data_sheet/FXLS8471Q.pdf Signed-off-by: Martin Kepplinger Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/accel/mma8452.txt b/Documentation/devicetree/bindings/iio/accel/mma8452.txt index 165937e..45f5c5c 100644 --- a/Documentation/devicetree/bindings/iio/accel/mma8452.txt +++ b/Documentation/devicetree/bindings/iio/accel/mma8452.txt @@ -1,4 +1,4 @@ -Freescale MMA8451Q, MMA8452Q, MMA8453Q, MMA8652FC or MMA8653FC +Freescale MMA8451Q, MMA8452Q, MMA8453Q, MMA8652FC, MMA8653FC or FXLS8471Q triaxial accelerometer Required properties: @@ -9,6 +9,7 @@ Required properties: * "fsl,mma8453" * "fsl,mma8652" * "fsl,mma8653" + * "fsl,fxls8471" - reg: the I2C address of the chip diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig index 7636eec..e4a758c 100644 --- a/drivers/iio/accel/Kconfig +++ b/drivers/iio/accel/Kconfig @@ -143,7 +143,8 @@ config MMA8452 select IIO_TRIGGERED_BUFFER help Say yes here to build support for the following Freescale 3-axis - accelerometers: MMA8451Q, MMA8452Q, MMA8453Q, MMA8652FC, MMA8653FC. + accelerometers: MMA8451Q, MMA8452Q, MMA8453Q, MMA8652FC, MMA8653FC, + FXLS8471Q. To compile this driver as a module, choose M here: the module will be called mma8452. diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index 5ca0d16..305ed0e 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -6,6 +6,7 @@ * MMA8453Q (10 bit) * MMA8652FC (12 bit) * MMA8653FC (10 bit) + * FXLS8471Q (14 bit) * * Copyright 2015 Martin Kepplinger * Copyright 2014 Peter Meerwald @@ -92,6 +93,7 @@ #define MMA8453_DEVICE_ID 0x3a #define MMA8652_DEVICE_ID 0x4a #define MMA8653_DEVICE_ID 0x5a +#define FXLS8471_DEVICE_ID 0x6a #define MMA8452_AUTO_SUSPEND_DELAY_MS 2000 @@ -1055,6 +1057,7 @@ enum { mma8453, mma8652, mma8653, + fxls8471, }; static const struct mma_chip_info mma_chip_info_table[] = { @@ -1146,6 +1149,22 @@ static const struct mma_chip_info mma_chip_info_table[] = { .ev_ths_mask = MMA8452_FF_MT_THS_MASK, .ev_count = MMA8452_FF_MT_COUNT, }, + [fxls8471] = { + .chip_id = FXLS8471_DEVICE_ID, + .channels = mma8451_channels, + .num_channels = ARRAY_SIZE(mma8451_channels), + .mma_scales = { {0, 2394}, {0, 4788}, {0, 9577} }, + .ev_cfg = MMA8452_TRANSIENT_CFG, + .ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE, + .ev_cfg_chan_shift = 1, + .ev_src = MMA8452_TRANSIENT_SRC, + .ev_src_xe = MMA8452_TRANSIENT_SRC_XTRANSE, + .ev_src_ye = MMA8452_TRANSIENT_SRC_YTRANSE, + .ev_src_ze = MMA8452_TRANSIENT_SRC_ZTRANSE, + .ev_ths = MMA8452_TRANSIENT_THS, + .ev_ths_mask = MMA8452_TRANSIENT_THS_MASK, + .ev_count = MMA8452_TRANSIENT_COUNT, + }, }; static struct attribute *mma8452_attributes[] = { @@ -1275,6 +1294,7 @@ static const struct of_device_id mma8452_dt_ids[] = { { .compatible = "fsl,mma8453", .data = &mma_chip_info_table[mma8453] }, { .compatible = "fsl,mma8652", .data = &mma_chip_info_table[mma8652] }, { .compatible = "fsl,mma8653", .data = &mma_chip_info_table[mma8653] }, + { .compatible = "fsl,fxls8471", .data = &mma_chip_info_table[fxls8471] }, { } }; MODULE_DEVICE_TABLE(of, mma8452_dt_ids); @@ -1312,6 +1332,7 @@ static int mma8452_probe(struct i2c_client *client, case MMA8453_DEVICE_ID: case MMA8652_DEVICE_ID: case MMA8653_DEVICE_ID: + case FXLS8471_DEVICE_ID: if (ret == data->chip_info->chip_id) break; default: @@ -1518,6 +1539,7 @@ static const struct i2c_device_id mma8452_id[] = { { "mma8453", mma8453 }, { "mma8652", mma8652 }, { "mma8653", mma8653 }, + { "fxls8471", fxls8471 }, { } }; MODULE_DEVICE_TABLE(i2c, mma8452_id); -- cgit v0.10.2 From 08a33805518e7845486f88287e8aace6f8439391 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Wed, 9 Mar 2016 11:30:12 -0800 Subject: iio: core: implement iio_device_{claim|release}_direct_mode() It is often the case that the driver wants to be sure a device stays in direct mode while it is executing a task or series of tasks. To accomplish this today, the driver performs this sequence: 1) take the device state lock, 2) verify it is not in a buffered mode, 3) execute some tasks, and 4) release that lock. This patch introduces a pair of helper functions that simplify these steps and make it more semantically expressive. iio_device_claim_direct_mode() If the device is not in any buffered mode it is guaranteed to stay that way until iio_release_direct_mode() is called. iio_device_release_direct_mode() Release the claim. Device is no longer guaranteed to stay in direct mode. Signed-off-by: Alison Schofield Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 70cb7eb..2e768bc 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include "iio_core.h" #include "iio_core_trigger.h" @@ -1375,6 +1376,44 @@ void devm_iio_device_unregister(struct device *dev, struct iio_dev *indio_dev) } EXPORT_SYMBOL_GPL(devm_iio_device_unregister); +/** + * iio_device_claim_direct_mode - Keep device in direct mode + * @indio_dev: the iio_dev associated with the device + * + * If the device is in direct mode it is guaranteed to stay + * that way until iio_device_release_direct_mode() is called. + * + * Use with iio_device_release_direct_mode() + * + * Returns: 0 on success, -EBUSY on failure + */ +int iio_device_claim_direct_mode(struct iio_dev *indio_dev) +{ + mutex_lock(&indio_dev->mlock); + + if (iio_buffer_enabled(indio_dev)) { + mutex_unlock(&indio_dev->mlock); + return -EBUSY; + } + return 0; +} +EXPORT_SYMBOL_GPL(iio_device_claim_direct_mode); + +/** + * iio_device_release_direct_mode - releases claim on direct mode + * @indio_dev: the iio_dev associated with the device + * + * Release the claim. Device is no longer guaranteed to stay + * in direct mode. + * + * Use with iio_device_claim_direct_mode() + */ +void iio_device_release_direct_mode(struct iio_dev *indio_dev) +{ + mutex_unlock(&indio_dev->mlock); +} +EXPORT_SYMBOL_GPL(iio_device_release_direct_mode); + subsys_initcall(iio_init); module_exit(iio_exit); diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index b2b1677..0b2773a 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -527,6 +527,8 @@ void iio_device_unregister(struct iio_dev *indio_dev); int devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev); void devm_iio_device_unregister(struct device *dev, struct iio_dev *indio_dev); int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp); +int iio_device_claim_direct_mode(struct iio_dev *indio_dev); +void iio_device_release_direct_mode(struct iio_dev *indio_dev); extern struct bus_type iio_bus_type; -- cgit v0.10.2 From 1c118b7230a16cb627061de9bd548ed7fdbdad24 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Wed, 9 Mar 2016 11:30:43 -0800 Subject: staging: iio: ad7192: use iio_device_{claim|release}_direct_mode() Replace the code that guarantees the device stays in direct mode with iio_device_{claim|release}_direct_mode() which does same. Signed-off-by: Alison Schofield Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c index f843f19..15d965c 100644 --- a/drivers/staging/iio/adc/ad7192.c +++ b/drivers/staging/iio/adc/ad7192.c @@ -349,11 +349,9 @@ static ssize_t ad7192_write_frequency(struct device *dev, if (lval == 0) return -EINVAL; - mutex_lock(&indio_dev->mlock); - if (iio_buffer_enabled(indio_dev)) { - mutex_unlock(&indio_dev->mlock); - return -EBUSY; - } + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; div = st->mclk / (lval * st->f_order * 1024); if (div < 1 || div > 1023) { @@ -366,7 +364,7 @@ static ssize_t ad7192_write_frequency(struct device *dev, ad_sd_write_reg(&st->sd, AD7192_REG_MODE, 3, st->mode); out: - mutex_unlock(&indio_dev->mlock); + iio_device_release_direct_mode(indio_dev); return ret ? ret : len; } @@ -434,11 +432,9 @@ static ssize_t ad7192_set(struct device *dev, if (ret < 0) return ret; - mutex_lock(&indio_dev->mlock); - if (iio_buffer_enabled(indio_dev)) { - mutex_unlock(&indio_dev->mlock); - return -EBUSY; - } + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; switch ((u32)this_attr->address) { case AD7192_REG_GPOCON: @@ -461,7 +457,7 @@ static ssize_t ad7192_set(struct device *dev, ret = -EINVAL; } - mutex_unlock(&indio_dev->mlock); + iio_device_release_direct_mode(indio_dev); return ret ? ret : len; } @@ -555,11 +551,9 @@ static int ad7192_write_raw(struct iio_dev *indio_dev, int ret, i; unsigned int tmp; - mutex_lock(&indio_dev->mlock); - if (iio_buffer_enabled(indio_dev)) { - mutex_unlock(&indio_dev->mlock); - return -EBUSY; - } + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; switch (mask) { case IIO_CHAN_INFO_SCALE: @@ -582,7 +576,7 @@ static int ad7192_write_raw(struct iio_dev *indio_dev, ret = -EINVAL; } - mutex_unlock(&indio_dev->mlock); + iio_device_release_direct_mode(indio_dev); return ret; } -- cgit v0.10.2 From a583c24deefdaaaf5bd96a1117b850904a294804 Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Sat, 12 Mar 2016 13:30:14 +0100 Subject: iio: adc: add NXP LPC18xx ADC driver Add base support for the 10-bit SAR ADC peripheral found on NXP LPC18xx/43xx SoCs. This is a minimal driver that does not support burst mode, interrupts, DMA or hardware triggers. User manual with register description can be found on: LPC18xx: www.nxp.com/documents/user_manual/UM10430.pdf LPC43xx: www.nxp.com/documents/user_manual/UM10503.pdf Signed-off-by: Joachim Eastwood Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index a8819a0..9ddcd5d 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -235,6 +235,16 @@ config LP8788_ADC To compile this driver as a module, choose M here: the module will be called lp8788_adc. +config LPC18XX_ADC + tristate "NXP LPC18xx ADC driver" + depends on ARCH_LPC18XX || COMPILE_TEST + depends on OF && HAS_IOMEM + help + Say yes here to build support for NXP LPC18XX ADC. + + To compile this driver as a module, choose M here: the module will be + called lpc18xx_adc. + config MAX1027 tristate "Maxim max1027 ADC driver" depends on SPI diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile index b1aa456..1a4ac45 100644 --- a/drivers/iio/adc/Makefile +++ b/drivers/iio/adc/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_HI8435) += hi8435.o obj-$(CONFIG_IMX7D_ADC) += imx7d_adc.o obj-$(CONFIG_INA2XX_ADC) += ina2xx-adc.o obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o +obj-$(CONFIG_LPC18XX_ADC) += lpc18xx_adc.o obj-$(CONFIG_MAX1027) += max1027.o obj-$(CONFIG_MAX1363) += max1363.o obj-$(CONFIG_MCP320X) += mcp320x.o diff --git a/drivers/iio/adc/lpc18xx_adc.c b/drivers/iio/adc/lpc18xx_adc.c new file mode 100644 index 0000000..3ef18f4 --- /dev/null +++ b/drivers/iio/adc/lpc18xx_adc.c @@ -0,0 +1,231 @@ +/* + * IIO ADC driver for NXP LPC18xx ADC + * + * Copyright (C) 2016 Joachim Eastwood + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * UNSUPPORTED hardware features: + * - Hardware triggers + * - Burst mode + * - Interrupts + * - DMA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* LPC18XX ADC registers and bits */ +#define LPC18XX_ADC_CR 0x000 +#define LPC18XX_ADC_CR_CLKDIV_SHIFT 8 +#define LPC18XX_ADC_CR_PDN BIT(21) +#define LPC18XX_ADC_CR_START_NOW (0x1 << 24) +#define LPC18XX_ADC_GDR 0x004 + +/* Data register bits */ +#define LPC18XX_ADC_SAMPLE_SHIFT 6 +#define LPC18XX_ADC_SAMPLE_MASK 0x3ff +#define LPC18XX_ADC_CONV_DONE BIT(31) + +/* Clock should be 4.5 MHz or less */ +#define LPC18XX_ADC_CLK_TARGET 4500000 + +struct lpc18xx_adc { + struct regulator *vref; + void __iomem *base; + struct device *dev; + struct mutex lock; + struct clk *clk; + u32 cr_reg; +}; + +#define LPC18XX_ADC_CHAN(_idx) { \ + .type = IIO_VOLTAGE, \ + .indexed = 1, \ + .channel = _idx, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ +} + +static const struct iio_chan_spec lpc18xx_adc_iio_channels[] = { + LPC18XX_ADC_CHAN(0), + LPC18XX_ADC_CHAN(1), + LPC18XX_ADC_CHAN(2), + LPC18XX_ADC_CHAN(3), + LPC18XX_ADC_CHAN(4), + LPC18XX_ADC_CHAN(5), + LPC18XX_ADC_CHAN(6), + LPC18XX_ADC_CHAN(7), +}; + +static int lpc18xx_adc_read_chan(struct lpc18xx_adc *adc, unsigned int ch) +{ + int ret; + u32 reg; + + reg = adc->cr_reg | BIT(ch) | LPC18XX_ADC_CR_START_NOW; + writel(reg, adc->base + LPC18XX_ADC_CR); + + ret = readl_poll_timeout(adc->base + LPC18XX_ADC_GDR, reg, + reg & LPC18XX_ADC_CONV_DONE, 3, 9); + if (ret) { + dev_warn(adc->dev, "adc read timed out\n"); + return ret; + } + + return (reg >> LPC18XX_ADC_SAMPLE_SHIFT) & LPC18XX_ADC_SAMPLE_MASK; +} + +static int lpc18xx_adc_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct lpc18xx_adc *adc = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + mutex_lock(&adc->lock); + *val = lpc18xx_adc_read_chan(adc, chan->channel); + mutex_unlock(&adc->lock); + if (*val < 0) + return *val; + + return IIO_VAL_INT; + + case IIO_CHAN_INFO_SCALE: + *val = regulator_get_voltage(adc->vref) / 1000; + *val2 = 10; + + return IIO_VAL_FRACTIONAL_LOG2; + } + + return -EINVAL; +} + +static const struct iio_info lpc18xx_adc_info = { + .read_raw = lpc18xx_adc_read_raw, + .driver_module = THIS_MODULE, +}; + +static int lpc18xx_adc_probe(struct platform_device *pdev) +{ + struct iio_dev *indio_dev; + struct lpc18xx_adc *adc; + struct resource *res; + unsigned int clkdiv; + unsigned long rate; + int ret; + + indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*adc)); + if (!indio_dev) + return -ENOMEM; + + platform_set_drvdata(pdev, indio_dev); + adc = iio_priv(indio_dev); + adc->dev = &pdev->dev; + mutex_init(&adc->lock); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + adc->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(adc->base)) + return PTR_ERR(adc->base); + + adc->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(adc->clk)) { + dev_err(&pdev->dev, "error getting clock\n"); + return PTR_ERR(adc->clk); + } + + rate = clk_get_rate(adc->clk); + clkdiv = DIV_ROUND_UP(rate, LPC18XX_ADC_CLK_TARGET); + + adc->vref = devm_regulator_get(&pdev->dev, "vref"); + if (IS_ERR(adc->vref)) { + dev_err(&pdev->dev, "error getting regulator\n"); + return PTR_ERR(adc->vref); + } + + indio_dev->name = dev_name(&pdev->dev); + indio_dev->dev.parent = &pdev->dev; + indio_dev->info = &lpc18xx_adc_info; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->channels = lpc18xx_adc_iio_channels; + indio_dev->num_channels = ARRAY_SIZE(lpc18xx_adc_iio_channels); + + ret = regulator_enable(adc->vref); + if (ret) { + dev_err(&pdev->dev, "unable to enable regulator\n"); + return ret; + } + + ret = clk_prepare_enable(adc->clk); + if (ret) { + dev_err(&pdev->dev, "unable to enable clock\n"); + goto dis_reg; + } + + adc->cr_reg = (clkdiv << LPC18XX_ADC_CR_CLKDIV_SHIFT) | + LPC18XX_ADC_CR_PDN; + writel(adc->cr_reg, adc->base + LPC18XX_ADC_CR); + + ret = iio_device_register(indio_dev); + if (ret) { + dev_err(&pdev->dev, "unable to register device\n"); + goto dis_clk; + } + + return 0; + +dis_clk: + writel(0, adc->base + LPC18XX_ADC_CR); + clk_disable_unprepare(adc->clk); +dis_reg: + regulator_disable(adc->vref); + return ret; +} + +static int lpc18xx_adc_remove(struct platform_device *pdev) +{ + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct lpc18xx_adc *adc = iio_priv(indio_dev); + + iio_device_unregister(indio_dev); + + writel(0, adc->base + LPC18XX_ADC_CR); + clk_disable_unprepare(adc->clk); + regulator_disable(adc->vref); + + return 0; +} + +static const struct of_device_id lpc18xx_adc_match[] = { + { .compatible = "nxp,lpc1850-adc" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, lpc18xx_adc_match); + +static struct platform_driver lpc18xx_adc_driver = { + .probe = lpc18xx_adc_probe, + .remove = lpc18xx_adc_remove, + .driver = { + .name = "lpc18xx-adc", + .of_match_table = lpc18xx_adc_match, + }, +}; +module_platform_driver(lpc18xx_adc_driver); + +MODULE_DESCRIPTION("LPC18xx ADC driver"); +MODULE_AUTHOR("Joachim Eastwood "); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From edcb2d26c10206b35a5736139f5dce02fc4bbdc9 Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Sat, 12 Mar 2016 13:30:15 +0100 Subject: dt: document NXP LPC1850 ADC driver bindings Signed-off-by: Joachim Eastwood Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/adc/lpc1850-adc.txt b/Documentation/devicetree/bindings/iio/adc/lpc1850-adc.txt new file mode 100644 index 0000000..0bcae51 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/lpc1850-adc.txt @@ -0,0 +1,21 @@ +NXP LPC1850 ADC bindings + +Required properties: +- compatible: Should be "nxp,lpc1850-adc" +- reg: Offset and length of the register set for the ADC device +- interrupts: The interrupt number for the ADC device +- clocks: The root clock of the ADC controller +- vref-supply: The regulator supply ADC reference voltage +- resets: phandle to reset controller and line specifier + +Example: + +adc0: adc@400e3000 { + compatible = "nxp,lpc1850-adc"; + reg = <0x400e3000 0x1000>; + interrupts = <17>; + clocks = <&ccu1 CLK_APB3_ADC0>; + vref-supply = <®_vdda>; + resets = <&rgu 40>; + status = "disabled"; +}; -- cgit v0.10.2 From 9bbccbe11ab78c74bed9a2bc99943929f49ca565 Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Sat, 12 Mar 2016 13:30:16 +0100 Subject: iio: dac: add NXP LPC18xx DAC driver Add base support for the 10-bit DAC peripheral found on NXP LPC18xx/43xx SoCs. This is a minimal driver that does not support DMA or interrupts. User manual with register description can be found on: LPC18xx: www.nxp.com/documents/user_manual/UM10430.pdf LPC43xx: www.nxp.com/documents/user_manual/UM10503.pdf Signed-off-by: Joachim Eastwood Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig index a995139..210db81 100644 --- a/drivers/iio/dac/Kconfig +++ b/drivers/iio/dac/Kconfig @@ -154,6 +154,16 @@ config AD7303 To compile this driver as module choose M here: the module will be called ad7303. +config LPC18XX_DAC + tristate "NXP LPC18xx DAC driver" + depends on ARCH_LPC18XX || COMPILE_TEST + depends on OF && HAS_IOMEM + help + Say yes here to build support for NXP LPC18XX DAC. + + To compile this driver as a module, choose M here: the module will be + called lpc18xx_dac. + config M62332 tristate "Mitsubishi M62332 DAC driver" depends on I2C diff --git a/drivers/iio/dac/Makefile b/drivers/iio/dac/Makefile index 67b4842..420a15c 100644 --- a/drivers/iio/dac/Makefile +++ b/drivers/iio/dac/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_AD5764) += ad5764.o obj-$(CONFIG_AD5791) += ad5791.o obj-$(CONFIG_AD5686) += ad5686.o obj-$(CONFIG_AD7303) += ad7303.o +obj-$(CONFIG_LPC18XX_DAC) += lpc18xx_dac.o obj-$(CONFIG_M62332) += m62332.o obj-$(CONFIG_MAX517) += max517.o obj-$(CONFIG_MAX5821) += max5821.o diff --git a/drivers/iio/dac/lpc18xx_dac.c b/drivers/iio/dac/lpc18xx_dac.c new file mode 100644 index 0000000..55d1456 --- /dev/null +++ b/drivers/iio/dac/lpc18xx_dac.c @@ -0,0 +1,210 @@ +/* + * IIO DAC driver for NXP LPC18xx DAC + * + * Copyright (C) 2016 Joachim Eastwood + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * UNSUPPORTED hardware features: + * - Interrupts + * - DMA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* LPC18XX DAC registers and bits */ +#define LPC18XX_DAC_CR 0x000 +#define LPC18XX_DAC_CR_VALUE_SHIFT 6 +#define LPC18XX_DAC_CR_VALUE_MASK 0x3ff +#define LPC18XX_DAC_CR_BIAS BIT(16) +#define LPC18XX_DAC_CTRL 0x004 +#define LPC18XX_DAC_CTRL_DMA_ENA BIT(3) + +struct lpc18xx_dac { + struct regulator *vref; + void __iomem *base; + struct mutex lock; + struct clk *clk; +}; + +static const struct iio_chan_spec lpc18xx_dac_iio_channels[] = { + { + .type = IIO_VOLTAGE, + .output = 1, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE), + }, +}; + +static int lpc18xx_dac_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct lpc18xx_dac *dac = iio_priv(indio_dev); + u32 reg; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + reg = readl(dac->base + LPC18XX_DAC_CR); + *val = reg >> LPC18XX_DAC_CR_VALUE_SHIFT; + *val &= LPC18XX_DAC_CR_VALUE_MASK; + + return IIO_VAL_INT; + + case IIO_CHAN_INFO_SCALE: + *val = regulator_get_voltage(dac->vref) / 1000; + *val2 = 10; + + return IIO_VAL_FRACTIONAL_LOG2; + } + + return -EINVAL; +} + +static int lpc18xx_dac_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct lpc18xx_dac *dac = iio_priv(indio_dev); + u32 reg; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + if (val < 0 || val > LPC18XX_DAC_CR_VALUE_MASK) + return -EINVAL; + + reg = LPC18XX_DAC_CR_BIAS; + reg |= val << LPC18XX_DAC_CR_VALUE_SHIFT; + + mutex_lock(&dac->lock); + writel(reg, dac->base + LPC18XX_DAC_CR); + writel(LPC18XX_DAC_CTRL_DMA_ENA, dac->base + LPC18XX_DAC_CTRL); + mutex_unlock(&dac->lock); + + return 0; + } + + return -EINVAL; +} + +static const struct iio_info lpc18xx_dac_info = { + .read_raw = lpc18xx_dac_read_raw, + .write_raw = lpc18xx_dac_write_raw, + .driver_module = THIS_MODULE, +}; + +static int lpc18xx_dac_probe(struct platform_device *pdev) +{ + struct iio_dev *indio_dev; + struct lpc18xx_dac *dac; + struct resource *res; + int ret; + + indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*dac)); + if (!indio_dev) + return -ENOMEM; + + platform_set_drvdata(pdev, indio_dev); + dac = iio_priv(indio_dev); + mutex_init(&dac->lock); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + dac->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(dac->base)) + return PTR_ERR(dac->base); + + dac->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(dac->clk)) { + dev_err(&pdev->dev, "error getting clock\n"); + return PTR_ERR(dac->clk); + } + + dac->vref = devm_regulator_get(&pdev->dev, "vref"); + if (IS_ERR(dac->vref)) { + dev_err(&pdev->dev, "error getting regulator\n"); + return PTR_ERR(dac->vref); + } + + indio_dev->name = dev_name(&pdev->dev); + indio_dev->dev.parent = &pdev->dev; + indio_dev->info = &lpc18xx_dac_info; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->channels = lpc18xx_dac_iio_channels; + indio_dev->num_channels = ARRAY_SIZE(lpc18xx_dac_iio_channels); + + ret = regulator_enable(dac->vref); + if (ret) { + dev_err(&pdev->dev, "unable to enable regulator\n"); + return ret; + } + + ret = clk_prepare_enable(dac->clk); + if (ret) { + dev_err(&pdev->dev, "unable to enable clock\n"); + goto dis_reg; + } + + writel(0, dac->base + LPC18XX_DAC_CTRL); + writel(0, dac->base + LPC18XX_DAC_CR); + + ret = iio_device_register(indio_dev); + if (ret) { + dev_err(&pdev->dev, "unable to register device\n"); + goto dis_clk; + } + + return 0; + +dis_clk: + clk_disable_unprepare(dac->clk); +dis_reg: + regulator_disable(dac->vref); + return ret; +} + +static int lpc18xx_dac_remove(struct platform_device *pdev) +{ + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct lpc18xx_dac *dac = iio_priv(indio_dev); + + iio_device_unregister(indio_dev); + + writel(0, dac->base + LPC18XX_DAC_CTRL); + clk_disable_unprepare(dac->clk); + regulator_disable(dac->vref); + + return 0; +} + +static const struct of_device_id lpc18xx_dac_match[] = { + { .compatible = "nxp,lpc1850-dac" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, lpc18xx_dac_match); + +static struct platform_driver lpc18xx_dac_driver = { + .probe = lpc18xx_dac_probe, + .remove = lpc18xx_dac_remove, + .driver = { + .name = "lpc18xx-dac", + .of_match_table = lpc18xx_dac_match, + }, +}; +module_platform_driver(lpc18xx_dac_driver); + +MODULE_DESCRIPTION("LPC18xx DAC driver"); +MODULE_AUTHOR("Joachim Eastwood "); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From d03b65967c902f4e8c0bd139542a9e4a7cc9a10d Mon Sep 17 00:00:00 2001 From: Joachim Eastwood Date: Sat, 12 Mar 2016 13:30:17 +0100 Subject: dt: document NXP LPC1850 DAC driver bindings Signed-off-by: Joachim Eastwood Acked-by: Rob Herring Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt b/Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt new file mode 100644 index 0000000..7d6647d --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/lpc1850-dac.txt @@ -0,0 +1,20 @@ +NXP LPC1850 DAC bindings + +Required properties: +- compatible: Should be "nxp,lpc1850-dac" +- reg: Offset and length of the register set for the ADC device +- interrupts: The interrupt number for the ADC device +- clocks: The root clock of the ADC controller +- vref-supply: The regulator supply ADC reference voltage +- resets: phandle to reset controller and line specifier + +Example: +dac: dac@400e1000 { + compatible = "nxp,lpc1850-dac"; + reg = <0x400e1000 0x1000>; + interrupts = <0>; + clocks = <&ccu1 CLK_APB3_DAC>; + vref-supply = <®_vdda>; + resets = <&rgu 42>; + status = "disabled"; +}; -- cgit v0.10.2 From 6fca5aa8658e61bf01158c4262cabcd8d7f72533 Mon Sep 17 00:00:00 2001 From: Peter Meerwald-Stadler Date: Sun, 13 Mar 2016 16:22:33 +0100 Subject: MAINTAINERS: update pmeerw's name happily married for 4 month :) Signed-off-by: Peter Meerwald-Stadler Signed-off-by: Jonathan Cameron diff --git a/MAINTAINERS b/MAINTAINERS index dd9ee367d..048c3d1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5458,7 +5458,7 @@ IIO SUBSYSTEM AND DRIVERS M: Jonathan Cameron R: Hartmut Knaack R: Lars-Peter Clausen -R: Peter Meerwald +R: Peter Meerwald-Stadler L: linux-iio@vger.kernel.org S: Maintained F: drivers/iio/ -- cgit v0.10.2 From 4fbcfa09f9e7b8b51af23bacf6e9adc45b6d0f3b Mon Sep 17 00:00:00 2001 From: Peter Meerwald Date: Sun, 13 Mar 2016 16:02:22 +0100 Subject: iio: ABI: Fix typo in in_proximity_raw description Signed-off-by: Peter Meerwald Signed-off-by: Jonathan Cameron diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 3c66248..17a9210 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -1233,7 +1233,7 @@ KernelVersion: 3.4 Contact: linux-iio@vger.kernel.org Description: Proximity measurement indicating that some - object is near the sensor, usually be observing + object is near the sensor, usually by observing reflectivity of infrared or ultrasound emitted. Often these sensors are unit less and as such conversion to SI units is not possible. Higher proximity measurements -- cgit v0.10.2 From ddb851affbb8a669cdfe237745aaab7523a31919 Mon Sep 17 00:00:00 2001 From: Martin Kepplinger Date: Mon, 14 Mar 2016 12:33:14 +0100 Subject: iio: mma8452: add i2c_device_id for mma8451 This was forgotten about and is added for consistency now Signed-off-by: Martin Kepplinger Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index 305ed0e..6aa2517 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -1535,6 +1535,7 @@ static const struct dev_pm_ops mma8452_pm_ops = { }; static const struct i2c_device_id mma8452_id[] = { + { "mma8451", mma8451 }, { "mma8452", mma8452 }, { "mma8453", mma8453 }, { "mma8652", mma8652 }, -- cgit v0.10.2 From bce59b602dace036b797144b1a5851318cbc85f0 Mon Sep 17 00:00:00 2001 From: Martin Kepplinger Date: Mon, 14 Mar 2016 12:26:29 +0100 Subject: iio: mma8452: use runtime pm instead of device specific autosleep What is this autosleep? ----------------------- It slows down the device after x seconds of inactivity. The thing is, we have really achieved almost the same by runtime pm. differnces are: autosleep * uses more power during inactivity * the first read after inactivity slightly faster * complicated to understand for the user * no documented sysfs interface (afaik) * complicated to read and maintain runtime pm * already merged in mma8452 * uses less power during inactivity * first read after inactivity slower * easy to use. well documented. * easy to maintain and understand The two approaches solve the same problem. runtime pm has more advantages than autosleep and comes quite close to it's behaviour anyways. As I see it, autosleep, even if somehow supported, would never be used anyways. So resolve this issue by "ignoring" autosleep. Signed-off-by: Martin Kepplinger Reviewed-by: Martina Kepplinger Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index 6aa2517..e225d3c 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -17,7 +17,7 @@ * * 7-bit I2C slave address 0x1c/0x1d (pin selectable) * - * TODO: orientation events, autosleep + * TODO: orientation events */ #include -- cgit v0.10.2 From 6ad515c6d6beea3cbb8557ba2b0f57c39301b0f7 Mon Sep 17 00:00:00 2001 From: Peter Meerwald-Stadler Date: Tue, 15 Mar 2016 22:54:51 +0100 Subject: tools: iio: Update iio_event_monitor names add recently added channel types and modifiers Signed-off-by: Peter Meerwald-Stadler Signed-off-by: Jonathan Cameron diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c index d51eb04..90980f5 100644 --- a/tools/iio/iio_event_monitor.c +++ b/tools/iio/iio_event_monitor.c @@ -53,6 +53,9 @@ static const char * const iio_chan_type_name_spec[] = { [IIO_ENERGY] = "energy", [IIO_DISTANCE] = "distance", [IIO_VELOCITY] = "velocity", + [IIO_CONCENTRATION] = "concentration", + [IIO_RESISTANCE] = "resistance", + [IIO_PH] = "ph", }; static const char * const iio_ev_type_text[] = { @@ -102,6 +105,10 @@ static const char * const iio_modifier_names[] = { [IIO_MOD_WALKING] = "walking", [IIO_MOD_STILL] = "still", [IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z] = "sqrt(x^2+y^2+z^2)", + [IIO_MOD_I] = "i", + [IIO_MOD_Q] = "q", + [IIO_MOD_CO2] = "co2", + [IIO_MOD_VOC] = "voc", }; static bool event_is_known(struct iio_event_data *event) @@ -136,6 +143,9 @@ static bool event_is_known(struct iio_event_data *event) case IIO_ENERGY: case IIO_DISTANCE: case IIO_VELOCITY: + case IIO_CONCENTRATION: + case IIO_RESISTANCE: + case IIO_PH: break; default: return false; @@ -174,6 +184,10 @@ static bool event_is_known(struct iio_event_data *event) case IIO_MOD_WALKING: case IIO_MOD_STILL: case IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z: + case IIO_MOD_I: + case IIO_MOD_Q: + case IIO_MOD_CO2: + case IIO_MOD_VOC: break; default: return false; -- cgit v0.10.2 From 722fc31663d506d668e6a3bea4e9dca8ab957d3a Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Tue, 15 Mar 2016 11:49:12 -0700 Subject: staging: iio: isl29028: use regmap to retrieve struct device Driver includes struct regmap and struct device in its global data. Remove the struct device and use regmap API to retrieve device info. Simplified version of Coccinelle semantic patch used: @ a @ identifier drvdata, r; position p; @@ struct drvdata@p { ... struct regmap *r; ... }; @ b @ identifier a.drvdata, d; position a.p; @@ struct drvdata@p { ... - struct device *d; ... }; @ passed depends on b @ identifier a.drvdata, a.r, b.d, i, f; @@ f (..., struct drvdata *i ,...) { + struct device *dev = regmap_get_device(i->r); <+... - i->d + dev ...+> } Signed-off-by: Alison Schofield Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/light/isl29028.c b/drivers/staging/iio/light/isl29028.c index 6e2ba45..2e3b1d6 100644 --- a/drivers/staging/iio/light/isl29028.c +++ b/drivers/staging/iio/light/isl29028.c @@ -69,7 +69,6 @@ enum als_ir_mode { }; struct isl29028_chip { - struct device *dev; struct mutex lock; struct regmap *regmap; @@ -166,20 +165,21 @@ static int isl29028_set_als_ir_mode(struct isl29028_chip *chip, static int isl29028_read_als_ir(struct isl29028_chip *chip, int *als_ir) { + struct device *dev = regmap_get_device(chip->regmap); unsigned int lsb; unsigned int msb; int ret; ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_L, &lsb); if (ret < 0) { - dev_err(chip->dev, + dev_err(dev, "Error in reading register ALSIR_L err %d\n", ret); return ret; } ret = regmap_read(chip->regmap, ISL29028_REG_ALSIR_U, &msb); if (ret < 0) { - dev_err(chip->dev, + dev_err(dev, "Error in reading register ALSIR_U err %d\n", ret); return ret; } @@ -190,12 +190,13 @@ static int isl29028_read_als_ir(struct isl29028_chip *chip, int *als_ir) static int isl29028_read_proxim(struct isl29028_chip *chip, int *prox) { + struct device *dev = regmap_get_device(chip->regmap); unsigned int data; int ret; ret = regmap_read(chip->regmap, ISL29028_REG_PROX_DATA, &data); if (ret < 0) { - dev_err(chip->dev, "Error in reading register %d, error %d\n", + dev_err(dev, "Error in reading register %d, error %d\n", ISL29028_REG_PROX_DATA, ret); return ret; } @@ -218,13 +219,14 @@ static int isl29028_proxim_get(struct isl29028_chip *chip, int *prox_data) static int isl29028_als_get(struct isl29028_chip *chip, int *als_data) { + struct device *dev = regmap_get_device(chip->regmap); int ret; int als_ir_data; if (chip->als_ir_mode != MODE_ALS) { ret = isl29028_set_als_ir_mode(chip, MODE_ALS); if (ret < 0) { - dev_err(chip->dev, + dev_err(dev, "Error in enabling ALS mode err %d\n", ret); return ret; } @@ -251,12 +253,13 @@ static int isl29028_als_get(struct isl29028_chip *chip, int *als_data) static int isl29028_ir_get(struct isl29028_chip *chip, int *ir_data) { + struct device *dev = regmap_get_device(chip->regmap); int ret; if (chip->als_ir_mode != MODE_IR) { ret = isl29028_set_als_ir_mode(chip, MODE_IR); if (ret < 0) { - dev_err(chip->dev, + dev_err(dev, "Error in enabling IR mode err %d\n", ret); return ret; } @@ -271,25 +274,26 @@ static int isl29028_write_raw(struct iio_dev *indio_dev, int val, int val2, long mask) { struct isl29028_chip *chip = iio_priv(indio_dev); + struct device *dev = regmap_get_device(chip->regmap); int ret = -EINVAL; mutex_lock(&chip->lock); switch (chan->type) { case IIO_PROXIMITY: if (mask != IIO_CHAN_INFO_SAMP_FREQ) { - dev_err(chip->dev, + dev_err(dev, "proximity: mask value 0x%08lx not supported\n", mask); break; } if (val < 1 || val > 100) { - dev_err(chip->dev, + dev_err(dev, "Samp_freq %d is not in range[1:100]\n", val); break; } ret = isl29028_set_proxim_sampling(chip, val); if (ret < 0) { - dev_err(chip->dev, + dev_err(dev, "Setting proximity samp_freq fail, err %d\n", ret); break; @@ -299,19 +303,19 @@ static int isl29028_write_raw(struct iio_dev *indio_dev, case IIO_LIGHT: if (mask != IIO_CHAN_INFO_SCALE) { - dev_err(chip->dev, + dev_err(dev, "light: mask value 0x%08lx not supported\n", mask); break; } if ((val != 125) && (val != 2000)) { - dev_err(chip->dev, + dev_err(dev, "lux scale %d is invalid [125, 2000]\n", val); break; } ret = isl29028_set_als_scale(chip, val); if (ret < 0) { - dev_err(chip->dev, + dev_err(dev, "Setting lux scale fail with error %d\n", ret); break; } @@ -319,7 +323,7 @@ static int isl29028_write_raw(struct iio_dev *indio_dev, break; default: - dev_err(chip->dev, "Unsupported channel type\n"); + dev_err(dev, "Unsupported channel type\n"); break; } mutex_unlock(&chip->lock); @@ -331,6 +335,7 @@ static int isl29028_read_raw(struct iio_dev *indio_dev, int *val, int *val2, long mask) { struct isl29028_chip *chip = iio_priv(indio_dev); + struct device *dev = regmap_get_device(chip->regmap); int ret = -EINVAL; mutex_lock(&chip->lock); @@ -370,7 +375,7 @@ static int isl29028_read_raw(struct iio_dev *indio_dev, break; default: - dev_err(chip->dev, "mask value 0x%08lx not supported\n", mask); + dev_err(dev, "mask value 0x%08lx not supported\n", mask); break; } mutex_unlock(&chip->lock); @@ -417,6 +422,7 @@ static const struct iio_info isl29028_info = { static int isl29028_chip_init(struct isl29028_chip *chip) { + struct device *dev = regmap_get_device(chip->regmap); int ret; chip->enable_prox = false; @@ -426,35 +432,33 @@ static int isl29028_chip_init(struct isl29028_chip *chip) ret = regmap_write(chip->regmap, ISL29028_REG_TEST1_MODE, 0x0); if (ret < 0) { - dev_err(chip->dev, "%s(): write to reg %d failed, err = %d\n", + dev_err(dev, "%s(): write to reg %d failed, err = %d\n", __func__, ISL29028_REG_TEST1_MODE, ret); return ret; } ret = regmap_write(chip->regmap, ISL29028_REG_TEST2_MODE, 0x0); if (ret < 0) { - dev_err(chip->dev, "%s(): write to reg %d failed, err = %d\n", + dev_err(dev, "%s(): write to reg %d failed, err = %d\n", __func__, ISL29028_REG_TEST2_MODE, ret); return ret; } ret = regmap_write(chip->regmap, ISL29028_REG_CONFIGURE, 0x0); if (ret < 0) { - dev_err(chip->dev, "%s(): write to reg %d failed, err = %d\n", + dev_err(dev, "%s(): write to reg %d failed, err = %d\n", __func__, ISL29028_REG_CONFIGURE, ret); return ret; } ret = isl29028_set_proxim_sampling(chip, chip->prox_sampling); if (ret < 0) { - dev_err(chip->dev, "setting the proximity, err = %d\n", - ret); + dev_err(dev, "setting the proximity, err = %d\n", ret); return ret; } ret = isl29028_set_als_scale(chip, chip->lux_scale); if (ret < 0) - dev_err(chip->dev, - "setting als scale failed, err = %d\n", ret); + dev_err(dev, "setting als scale failed, err = %d\n", ret); return ret; } @@ -496,19 +500,19 @@ static int isl29028_probe(struct i2c_client *client, chip = iio_priv(indio_dev); i2c_set_clientdata(client, indio_dev); - chip->dev = &client->dev; mutex_init(&chip->lock); chip->regmap = devm_regmap_init_i2c(client, &isl29028_regmap_config); if (IS_ERR(chip->regmap)) { ret = PTR_ERR(chip->regmap); - dev_err(chip->dev, "regmap initialization failed: %d\n", ret); + dev_err(&client->dev, "regmap initialization failed: %d\n", + ret); return ret; } ret = isl29028_chip_init(chip); if (ret < 0) { - dev_err(chip->dev, "chip initialization failed: %d\n", ret); + dev_err(&client->dev, "chip initialization failed: %d\n", ret); return ret; } @@ -520,7 +524,8 @@ static int isl29028_probe(struct i2c_client *client, indio_dev->modes = INDIO_DIRECT_MODE; ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev); if (ret < 0) { - dev_err(chip->dev, "iio registration fails with error %d\n", + dev_err(&client->dev, + "iio registration fails with error %d\n", ret); return ret; } -- cgit v0.10.2 From ae549a72212c94c757fa3ecbcaa986cc9d2e2b96 Mon Sep 17 00:00:00 2001 From: David Wu Date: Wed, 16 Mar 2016 01:44:15 +0800 Subject: iio: adc: rockchip_saradc: add saradc support for rk3399 The ADC is a 6-channel signal-ended 10-bit Successive Approximation Register (SAR) A/D Converter. Signed-off-by: David Wu Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt index a9a5fe1..bf99e2f 100644 --- a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt +++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt @@ -1,7 +1,11 @@ Rockchip Successive Approximation Register (SAR) A/D Converter bindings Required properties: -- compatible: Should be "rockchip,saradc" or "rockchip,rk3066-tsadc" +- compatible: should be "rockchip,-saradc" or "rockchip,rk3066-tsadc" + - "rockchip,saradc": for rk3188, rk3288 + - "rockchip,rk3066-tsadc": for rk3036 + - "rockchip,rk3399-saradc": for rk3399 + - reg: physical base address of the controller and length of memory mapped region. - interrupts: The interrupt number to the cpu. The interrupt specifier format diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c index 9c311c1..f9ad6c2 100644 --- a/drivers/iio/adc/rockchip_saradc.c +++ b/drivers/iio/adc/rockchip_saradc.c @@ -159,6 +159,22 @@ static const struct rockchip_saradc_data rk3066_tsadc_data = { .clk_rate = 50000, }; +static const struct iio_chan_spec rockchip_rk3399_saradc_iio_channels[] = { + ADC_CHANNEL(0, "adc0"), + ADC_CHANNEL(1, "adc1"), + ADC_CHANNEL(2, "adc2"), + ADC_CHANNEL(3, "adc3"), + ADC_CHANNEL(4, "adc4"), + ADC_CHANNEL(5, "adc5"), +}; + +static const struct rockchip_saradc_data rk3399_saradc_data = { + .num_bits = 10, + .channels = rockchip_rk3399_saradc_iio_channels, + .num_channels = ARRAY_SIZE(rockchip_rk3399_saradc_iio_channels), + .clk_rate = 1000000, +}; + static const struct of_device_id rockchip_saradc_match[] = { { .compatible = "rockchip,saradc", @@ -166,6 +182,9 @@ static const struct of_device_id rockchip_saradc_match[] = { }, { .compatible = "rockchip,rk3066-tsadc", .data = &rk3066_tsadc_data, + }, { + .compatible = "rockchip,rk3399-saradc", + .data = &rk3399_saradc_data, }, {}, }; -- cgit v0.10.2 From 718ba46e5f4e21e45141bf55fd4cccd4b3ba9939 Mon Sep 17 00:00:00 2001 From: Daniel Baluta Date: Thu, 17 Mar 2016 18:32:44 +0200 Subject: iio: imu: mpu6050: Fix name/chip_id when using ACPI When using ACPI, id is NULL and the current code automatically defaults name to NULL and chip id to 0. We should instead use the data provided in the ACPI device table. Fixes: c816d9e7a57b ("iio: imu: mpu6050: fix possible NULL dereferences") Signed-off-by: Daniel Baluta Reviewed-By: Matt Ranostay Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c index d0c0e20..5ee4e0d 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c @@ -104,6 +104,19 @@ static int inv_mpu6050_deselect_bypass(struct i2c_adapter *adap, return 0; } +static const char *inv_mpu_match_acpi_device(struct device *dev, int *chip_id) +{ + const struct acpi_device_id *id; + + id = acpi_match_device(dev->driver->acpi_match_table, dev); + if (!id) + return NULL; + + *chip_id = (int)id->driver_data; + + return dev_name(dev); +} + /** * inv_mpu_probe() - probe function. * @client: i2c client. @@ -115,15 +128,25 @@ static int inv_mpu_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct inv_mpu6050_state *st; - int result; - const char *name = id ? id->name : NULL; - const int chip_type = id ? id->driver_data : 0; + int result, chip_type; struct regmap *regmap; + const char *name; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK)) return -EOPNOTSUPP; + if (id) { + chip_type = (int)id->driver_data; + name = id->name; + } else if (ACPI_HANDLE(&client->dev)) { + name = inv_mpu_match_acpi_device(&client->dev, &chip_type); + if (!name) + return -ENODEV; + } else { + return -ENOSYS; + } + regmap = devm_regmap_init_i2c(client, &inv_mpu_regmap_config); if (IS_ERR(regmap)) { dev_err(&client->dev, "Failed to register i2c regmap %d\n", -- cgit v0.10.2 From 334ecdd0ba45bb68bce0f1429a4a1e9584ba437e Mon Sep 17 00:00:00 2001 From: Gregor Boirie Date: Thu, 17 Mar 2016 12:55:03 +0100 Subject: iio:pressure:ms5611: fix missing regulator_disable Ensure optional regulator is properly disabled when present. Fixes: 3145229f9191 ("iio:pressure:ms5611: power regulator support") Signed-off-by: Gregor Boirie Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/pressure/ms5611.h b/drivers/iio/pressure/ms5611.h index d725a307..ccda63c 100644 --- a/drivers/iio/pressure/ms5611.h +++ b/drivers/iio/pressure/ms5611.h @@ -16,6 +16,8 @@ #include #include +struct regulator; + #define MS5611_RESET 0x1e #define MS5611_READ_ADC 0x00 #define MS5611_READ_PROM_WORD 0xA0 @@ -57,6 +59,7 @@ struct ms5611_state { s32 *temp, s32 *pressure); struct ms5611_chip_info *chip_info; + struct regulator *vdd; }; int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c index 37dbc04..c4e6586 100644 --- a/drivers/iio/pressure/ms5611_core.c +++ b/drivers/iio/pressure/ms5611_core.c @@ -387,24 +387,45 @@ static const struct iio_info ms5611_info = { static int ms5611_init(struct iio_dev *indio_dev) { int ret; - struct regulator *vdd = devm_regulator_get(indio_dev->dev.parent, - "vdd"); + struct ms5611_state *st = iio_priv(indio_dev); /* Enable attached regulator if any. */ - if (!IS_ERR(vdd)) { - ret = regulator_enable(vdd); + st->vdd = devm_regulator_get(indio_dev->dev.parent, "vdd"); + if (!IS_ERR(st->vdd)) { + ret = regulator_enable(st->vdd); if (ret) { dev_err(indio_dev->dev.parent, - "failed to enable Vdd supply: %d\n", ret); + "failed to enable Vdd supply: %d\n", ret); return ret; } + } else { + ret = PTR_ERR(st->vdd); + if (ret != -ENODEV) + return ret; } ret = ms5611_reset(indio_dev); if (ret < 0) - return ret; + goto err_regulator_disable; + + ret = ms5611_read_prom(indio_dev); + if (ret < 0) + goto err_regulator_disable; + + return 0; - return ms5611_read_prom(indio_dev); +err_regulator_disable: + if (!IS_ERR_OR_NULL(st->vdd)) + regulator_disable(st->vdd); + return ret; +} + +static void ms5611_fini(const struct iio_dev *indio_dev) +{ + const struct ms5611_state *st = iio_priv(indio_dev); + + if (!IS_ERR_OR_NULL(st->vdd)) + regulator_disable(st->vdd); } int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, @@ -436,7 +457,7 @@ int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, ms5611_trigger_handler, NULL); if (ret < 0) { dev_err(dev, "iio triggered buffer setup failed\n"); - return ret; + goto err_fini; } ret = iio_device_register(indio_dev); @@ -449,7 +470,8 @@ int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, err_buffer_cleanup: iio_triggered_buffer_cleanup(indio_dev); - +err_fini: + ms5611_fini(indio_dev); return ret; } EXPORT_SYMBOL(ms5611_probe); @@ -458,6 +480,7 @@ int ms5611_remove(struct iio_dev *indio_dev) { iio_device_unregister(indio_dev); iio_triggered_buffer_cleanup(indio_dev); + ms5611_fini(indio_dev); return 0; } -- cgit v0.10.2 From 9e61d901155bcd4e58cbce5eb4aaa8e870267334 Mon Sep 17 00:00:00 2001 From: Amitoj Kaur Chawla Date: Thu, 17 Mar 2016 19:25:11 +0530 Subject: iio: light: tsl2563: Remove flush_scheduled_work flush_scheduled_work is scheduled for deprecation. Replace cancel_delayed_work and flush_scheduled_work with cancel_delayed_work_sync instead to ensure there is no pending or running work item. Since there is only one work item, chip->poweroff_work, there are no further dependencies of flush_scheduled_work(). Acked-by: Tejun Heo Signed-off-by: Amitoj Kaur Chawla Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c index 12731d6..57b108c 100644 --- a/drivers/iio/light/tsl2563.c +++ b/drivers/iio/light/tsl2563.c @@ -806,8 +806,7 @@ static int tsl2563_probe(struct i2c_client *client, return 0; fail: - cancel_delayed_work(&chip->poweroff_work); - flush_scheduled_work(); + cancel_delayed_work_sync(&chip->poweroff_work); return err; } -- cgit v0.10.2 From a9b72c90fc1a7cd547a333e382b3a7c2201fc3e4 Mon Sep 17 00:00:00 2001 From: Gregor Boirie Date: Thu, 17 Mar 2016 17:43:26 +0100 Subject: iio:magnetometer:ak8975: fix missing regulator_disable Ensure optional regulator is properly disabled when present. Fixes: 63d5d525cbbc ("iio:magnetometer:ak8975: power regulator support") Signed-off-by: Gregor Boirie Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 72c03d9..48d127a 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -370,8 +370,40 @@ struct ak8975_data { wait_queue_head_t data_ready_queue; unsigned long flags; u8 cntl_cache; + struct regulator *vdd; }; +/* Enable attached power regulator if any. */ +static int ak8975_power_on(struct i2c_client *client) +{ + const struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct ak8975_data *data = iio_priv(indio_dev); + int ret; + + data->vdd = devm_regulator_get(&client->dev, "vdd"); + if (IS_ERR_OR_NULL(data->vdd)) { + ret = PTR_ERR(data->vdd); + if (ret == -ENODEV) + ret = 0; + } else { + ret = regulator_enable(data->vdd); + } + + if (ret) + dev_err(&client->dev, "failed to enable Vdd supply: %d\n", ret); + return ret; +} + +/* Disable attached power regulator if any. */ +static void ak8975_power_off(const struct i2c_client *client) +{ + const struct iio_dev *indio_dev = i2c_get_clientdata(client); + const struct ak8975_data *data = iio_priv(indio_dev); + + if (!IS_ERR_OR_NULL(data->vdd)) + regulator_disable(data->vdd); +} + /* * Return 0 if the i2c device is the one we expect. * return a negative error number otherwise @@ -380,23 +412,8 @@ static int ak8975_who_i_am(struct i2c_client *client, enum asahi_compass_chipset type) { u8 wia_val[2]; - struct regulator *vdd = devm_regulator_get_optional(&client->dev, - "vdd"); int ret; - /* Enable attached regulator if any. */ - if (!IS_ERR(vdd)) { - ret = regulator_enable(vdd); - if (ret) { - dev_err(&client->dev, "Failed to enable Vdd supply\n"); - return ret; - } - } else { - ret = PTR_ERR(vdd); - if (ret != -ENODEV) - return ret; - } - /* * Signature for each device: * Device | WIA1 | WIA2 @@ -804,10 +821,15 @@ static int ak8975_probe(struct i2c_client *client, } data->def = &ak_def_array[chipset]; + + err = ak8975_power_on(client); + if (err) + return err; + err = ak8975_who_i_am(client, data->def->type); if (err < 0) { dev_err(&client->dev, "Unexpected device\n"); - return err; + goto power_off; } dev_dbg(&client->dev, "Asahi compass chip %s\n", name); @@ -815,7 +837,7 @@ static int ak8975_probe(struct i2c_client *client, err = ak8975_setup(client); if (err < 0) { dev_err(&client->dev, "%s initialization fails\n", name); - return err; + goto power_off; } mutex_init(&data->lock); @@ -825,7 +847,26 @@ static int ak8975_probe(struct i2c_client *client, indio_dev->info = &ak8975_info; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->name = name; - return devm_iio_device_register(&client->dev, indio_dev); + + err = iio_device_register(indio_dev); + if (err) + goto power_off; + + return 0; + +power_off: + ak8975_power_off(client); + return err; +} + +static int ak8975_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + + iio_device_unregister(indio_dev); + ak8975_power_off(client); + + return 0; } static const struct i2c_device_id ak8975_id[] = { @@ -859,6 +900,7 @@ static struct i2c_driver ak8975_driver = { .acpi_match_table = ACPI_PTR(ak_acpi_match), }, .probe = ak8975_probe, + .remove = ak8975_remove, .id_table = ak8975_id, }; module_i2c_driver(ak8975_driver); -- cgit v0.10.2 From d1ef4f2cae6705925088047554e89c34048f926a Mon Sep 17 00:00:00 2001 From: Marc Titinger Date: Mon, 14 Mar 2016 11:20:44 +0100 Subject: iio: ina2xx-adc: update the CALIB. register when RShunt changes The user (or an init script) may setup RShunt via sysfs after the driver was initialized, for instance based on the EEPROM contents of a modular probe. The calibration register must be set accordingly. Signed-off-by: Marc Titinger Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c index 65909d5..4e56fe3 100644 --- a/drivers/iio/adc/ina2xx-adc.c +++ b/drivers/iio/adc/ina2xx-adc.c @@ -350,6 +350,23 @@ static ssize_t ina2xx_allow_async_readout_store(struct device *dev, return len; } +/* + * Set current LSB to 1mA, shunt is in uOhms + * (equation 13 in datasheet). We hardcode a Current_LSB + * of 1.0 x10-6. The only remaining parameter is RShunt. + * There is no need to expose the CALIBRATION register + * to the user for now. But we need to reset this register + * if the user updates RShunt after driver init, e.g upon + * reading an EEPROM/Probe-type value. + */ +static int ina2xx_set_calibration(struct ina2xx_chip_info *chip) +{ + u16 regval = DIV_ROUND_CLOSEST(chip->config->calibration_factor, + chip->shunt_resistor); + + return regmap_write(chip->regmap, INA2XX_CALIBRATION, regval); +} + static int set_shunt_resistor(struct ina2xx_chip_info *chip, unsigned int val) { if (val <= 0 || val > chip->config->calibration_factor) @@ -385,6 +402,11 @@ static ssize_t ina2xx_shunt_resistor_store(struct device *dev, if (ret) return ret; + /* Update the Calibration register */ + ret = ina2xx_set_calibration(chip); + if (ret) + return ret; + return len; } @@ -602,24 +624,11 @@ static const struct iio_info ina2xx_info = { /* Initialize the configuration and calibration registers. */ static int ina2xx_init(struct ina2xx_chip_info *chip, unsigned int config) { - u16 regval; - int ret; - - ret = regmap_write(chip->regmap, INA2XX_CONFIG, config); + int ret = regmap_write(chip->regmap, INA2XX_CONFIG, config); if (ret) return ret; - /* - * Set current LSB to 1mA, shunt is in uOhms - * (equation 13 in datasheet). We hardcode a Current_LSB - * of 1.0 x10-6. The only remaining parameter is RShunt. - * There is no need to expose the CALIBRATION register - * to the user for now. - */ - regval = DIV_ROUND_CLOSEST(chip->config->calibration_factor, - chip->shunt_resistor); - - return regmap_write(chip->regmap, INA2XX_CALIBRATION, regval); + return ina2xx_set_calibration(chip); } static int ina2xx_probe(struct i2c_client *client, -- cgit v0.10.2 From e6e45420f41fc613569e8bb6d15e0472dc0ea1ab Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 24 Mar 2016 14:18:03 +0100 Subject: iio: st_sensors: simplify buffer address handling The driver goes to some length to dynamically allocate an array to hold the channel addresses. However no ST sensor has more than three channels (x, y, z at most). Instead of kmalloc():ing and kfree():in the address array, just use a fixed array of three elements. Cc: Giuseppe Barba Signed-off-by: Linus Walleij Acked-by: Denis Ciocca Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c index e18bc67..7376496 100644 --- a/drivers/iio/common/st_sensors/st_sensors_buffer.c +++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c @@ -24,19 +24,13 @@ int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf) { - u8 *addr; + u8 addr[3]; /* no ST sensor has more than 3 channels */ int i, n = 0, len; struct st_sensor_data *sdata = iio_priv(indio_dev); unsigned int num_data_channels = sdata->num_data_channels; unsigned int byte_for_channel = indio_dev->channels[0].scan_type.storagebits >> 3; - addr = kmalloc(num_data_channels, GFP_KERNEL); - if (!addr) { - len = -ENOMEM; - goto st_sensors_get_buffer_element_error; - } - for (i = 0; i < num_data_channels; i++) { if (test_bit(i, indio_dev->active_scan_mask)) { addr[n] = indio_dev->channels[i].address; @@ -57,10 +51,8 @@ int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf) u8 *rx_array; rx_array = kmalloc(byte_for_channel * num_data_channels, GFP_KERNEL); - if (!rx_array) { - len = -ENOMEM; - goto st_sensors_free_memory; - } + if (!rx_array) + return -ENOMEM; len = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev, addr[0], @@ -68,7 +60,7 @@ int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf) rx_array, sdata->multiread_bit); if (len < 0) { kfree(rx_array); - goto st_sensors_free_memory; + return len; } for (i = 0; i < n * byte_for_channel; i++) { @@ -87,17 +79,11 @@ int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf) buf, sdata->multiread_bit); break; default: - len = -EINVAL; - goto st_sensors_free_memory; - } - if (len != byte_for_channel * n) { - len = -EIO; - goto st_sensors_free_memory; + return -EINVAL; } + if (len != byte_for_channel * n) + return -EIO; -st_sensors_free_memory: - kfree(addr); -st_sensors_get_buffer_element_error: return len; } EXPORT_SYMBOL(st_sensors_get_buffer_element); -- cgit v0.10.2 From 51fadb985786929af9377245042b412302d2c9a2 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Sat, 26 Mar 2016 12:50:24 -0700 Subject: staging: iio: convert bare unsigned usage to unsigned int Use kernel preferred unsigned int declaration style. Patch created using: git ls-files drivers/staging/iio | \ xargs ./scripts/checkpatch.pl -f --fix-inplace --types=unspecified_int Hand edits restored columns in structure definitions. Signed-off-by: Alison Schofield Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c index 62e5eca..a06b46c 100644 --- a/drivers/staging/iio/adc/ad7280a.c +++ b/drivers/staging/iio/adc/ad7280a.c @@ -155,7 +155,7 @@ static void ad7280_crc8_build_table(unsigned char *crc_tab) } } -static unsigned char ad7280_calc_crc8(unsigned char *crc_tab, unsigned val) +static unsigned char ad7280_calc_crc8(unsigned char *crc_tab, unsigned int val) { unsigned char crc; @@ -165,7 +165,7 @@ static unsigned char ad7280_calc_crc8(unsigned char *crc_tab, unsigned val) return crc ^ (val & 0xFF); } -static int ad7280_check_crc(struct ad7280_state *st, unsigned val) +static int ad7280_check_crc(struct ad7280_state *st, unsigned int val) { unsigned char crc = ad7280_calc_crc8(st->crc_tab, val >> 10); @@ -191,7 +191,7 @@ static void ad7280_delay(struct ad7280_state *st) usleep_range(250, 500); } -static int __ad7280_read32(struct ad7280_state *st, unsigned *val) +static int __ad7280_read32(struct ad7280_state *st, unsigned int *val) { int ret; struct spi_transfer t = { @@ -211,10 +211,10 @@ static int __ad7280_read32(struct ad7280_state *st, unsigned *val) return 0; } -static int ad7280_write(struct ad7280_state *st, unsigned devaddr, - unsigned addr, bool all, unsigned val) +static int ad7280_write(struct ad7280_state *st, unsigned int devaddr, + unsigned int addr, bool all, unsigned int val) { - unsigned reg = devaddr << 27 | addr << 21 | + unsigned int reg = devaddr << 27 | addr << 21 | (val & 0xFF) << 13 | all << 12; reg |= ad7280_calc_crc8(st->crc_tab, reg >> 11) << 3 | 0x2; @@ -223,11 +223,11 @@ static int ad7280_write(struct ad7280_state *st, unsigned devaddr, return spi_write(st->spi, &st->buf[0], 4); } -static int ad7280_read(struct ad7280_state *st, unsigned devaddr, - unsigned addr) +static int ad7280_read(struct ad7280_state *st, unsigned int devaddr, + unsigned int addr) { int ret; - unsigned tmp; + unsigned int tmp; /* turns off the read operation on all parts */ ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_HB, 1, @@ -261,11 +261,11 @@ static int ad7280_read(struct ad7280_state *st, unsigned devaddr, return (tmp >> 13) & 0xFF; } -static int ad7280_read_channel(struct ad7280_state *st, unsigned devaddr, - unsigned addr) +static int ad7280_read_channel(struct ad7280_state *st, unsigned int devaddr, + unsigned int addr) { int ret; - unsigned tmp; + unsigned int tmp; ret = ad7280_write(st, devaddr, AD7280A_READ, 0, addr << 2); if (ret) @@ -299,11 +299,11 @@ static int ad7280_read_channel(struct ad7280_state *st, unsigned devaddr, return (tmp >> 11) & 0xFFF; } -static int ad7280_read_all_channels(struct ad7280_state *st, unsigned cnt, - unsigned *array) +static int ad7280_read_all_channels(struct ad7280_state *st, unsigned int cnt, + unsigned int *array) { int i, ret; - unsigned tmp, sum = 0; + unsigned int tmp, sum = 0; ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_READ, 1, AD7280A_CELL_VOLTAGE_1 << 2); @@ -338,7 +338,7 @@ static int ad7280_read_all_channels(struct ad7280_state *st, unsigned cnt, static int ad7280_chain_setup(struct ad7280_state *st) { - unsigned val, n; + unsigned int val, n; int ret; ret = ad7280_write(st, AD7280A_DEVADDR_MASTER, AD7280A_CONTROL_LB, 1, @@ -401,7 +401,7 @@ static ssize_t ad7280_store_balance_sw(struct device *dev, struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); bool readin; int ret; - unsigned devaddr, ch; + unsigned int devaddr, ch; ret = strtobool(buf, &readin); if (ret) @@ -431,7 +431,7 @@ static ssize_t ad7280_show_balance_timer(struct device *dev, struct ad7280_state *st = iio_priv(indio_dev); struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; - unsigned msecs; + unsigned int msecs; mutex_lock(&indio_dev->mlock); ret = ad7280_read(st, this_attr->address >> 8, @@ -602,7 +602,7 @@ static ssize_t ad7280_read_channel_config(struct device *dev, struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct ad7280_state *st = iio_priv(indio_dev); struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); - unsigned val; + unsigned int val; switch ((u32)this_attr->address) { case AD7280A_CELL_OVERVOLTAGE: @@ -683,7 +683,7 @@ static irqreturn_t ad7280_event_handler(int irq, void *private) { struct iio_dev *indio_dev = private; struct ad7280_state *st = iio_priv(indio_dev); - unsigned *channels; + unsigned int *channels; int i, ret; channels = kcalloc(st->scan_cnt, sizeof(*channels), GFP_KERNEL); diff --git a/drivers/staging/iio/adc/ad7280a.h b/drivers/staging/iio/adc/ad7280a.h index 732347a..ccfb90d 100644 --- a/drivers/staging/iio/adc/ad7280a.h +++ b/drivers/staging/iio/adc/ad7280a.h @@ -29,10 +29,10 @@ #define AD7280A_ALERT_REMOVE_AUX4_AUX5 BIT(1) struct ad7280_platform_data { - unsigned acquisition_time; - unsigned conversion_averaging; - unsigned chain_last_alert_ignore; - bool thermistor_term_en; + unsigned int acquisition_time; + unsigned int conversion_averaging; + unsigned int chain_last_alert_ignore; + bool thermistor_term_en; }; #endif /* IIO_ADC_AD7280_H_ */ diff --git a/drivers/staging/iio/adc/ad7606.h b/drivers/staging/iio/adc/ad7606.h index cca9469..39f5044 100644 --- a/drivers/staging/iio/adc/ad7606.h +++ b/drivers/staging/iio/adc/ad7606.h @@ -28,16 +28,16 @@ */ struct ad7606_platform_data { - unsigned default_os; - unsigned default_range; - unsigned gpio_convst; - unsigned gpio_reset; - unsigned gpio_range; - unsigned gpio_os0; - unsigned gpio_os1; - unsigned gpio_os2; - unsigned gpio_frstdata; - unsigned gpio_stby; + unsigned int default_os; + unsigned int default_range; + unsigned int gpio_convst; + unsigned int gpio_reset; + unsigned int gpio_range; + unsigned int gpio_os0; + unsigned int gpio_os1; + unsigned int gpio_os2; + unsigned int gpio_frstdata; + unsigned int gpio_stby; }; /** @@ -52,7 +52,7 @@ struct ad7606_chip_info { const char *name; u16 int_vref_mv; const struct iio_chan_spec *channels; - unsigned num_channels; + unsigned int num_channels; }; /** @@ -67,8 +67,8 @@ struct ad7606_state { struct work_struct poll_work; wait_queue_head_t wq_data_avail; const struct ad7606_bus_ops *bops; - unsigned range; - unsigned oversampling; + unsigned int range; + unsigned int oversampling; bool done; void __iomem *base_address; @@ -86,7 +86,7 @@ struct ad7606_bus_ops { }; struct iio_dev *ad7606_probe(struct device *dev, int irq, - void __iomem *base_address, unsigned id, + void __iomem *base_address, unsigned int id, const struct ad7606_bus_ops *bops); int ad7606_remove(struct iio_dev *indio_dev, int irq); int ad7606_reset(struct ad7606_state *st); diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c index fe6caee..6dbc811 100644 --- a/drivers/staging/iio/adc/ad7606_core.c +++ b/drivers/staging/iio/adc/ad7606_core.c @@ -36,7 +36,7 @@ int ad7606_reset(struct ad7606_state *st) return -ENODEV; } -static int ad7606_scan_direct(struct iio_dev *indio_dev, unsigned ch) +static int ad7606_scan_direct(struct iio_dev *indio_dev, unsigned int ch) { struct ad7606_state *st = iio_priv(indio_dev); int ret; @@ -155,7 +155,7 @@ static ssize_t ad7606_show_oversampling_ratio(struct device *dev, return sprintf(buf, "%u\n", st->oversampling); } -static int ad7606_oversampling_get_index(unsigned val) +static int ad7606_oversampling_get_index(unsigned int val) { unsigned char supported[] = {0, 2, 4, 8, 16, 32, 64}; int i; @@ -446,7 +446,7 @@ static const struct iio_info ad7606_info_range = { struct iio_dev *ad7606_probe(struct device *dev, int irq, void __iomem *base_address, - unsigned id, + unsigned int id, const struct ad7606_bus_ops *bops) { struct ad7606_platform_data *pdata = dev->platform_data; diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c index 1439cfd..c9a0c2a 100644 --- a/drivers/staging/iio/adc/ad7780.c +++ b/drivers/staging/iio/adc/ad7780.c @@ -63,7 +63,7 @@ static int ad7780_set_mode(struct ad_sigma_delta *sigma_delta, enum ad_sigma_delta_mode mode) { struct ad7780_state *st = ad_sigma_delta_to_ad7780(sigma_delta); - unsigned val; + unsigned int val; switch (mode) { case AD_SD_MODE_SINGLE: diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index d1218d8..65947d3 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -93,14 +93,14 @@ struct ad5933_state { unsigned long mclk_hz; unsigned char ctrl_hb; unsigned char ctrl_lb; - unsigned range_avail[4]; + unsigned int range_avail[4]; unsigned short vref_mv; unsigned short settling_cycles; unsigned short freq_points; - unsigned freq_start; - unsigned freq_inc; - unsigned state; - unsigned poll_time_jiffies; + unsigned int freq_start; + unsigned int freq_inc; + unsigned int state; + unsigned int poll_time_jiffies; }; static struct ad5933_platform_data ad5933_default_pdata = { @@ -214,7 +214,7 @@ static int ad5933_wait_busy(struct ad5933_state *st, unsigned char event) } static int ad5933_set_freq(struct ad5933_state *st, - unsigned reg, unsigned long freq) + unsigned int reg, unsigned long freq) { unsigned long long freqreg; union { @@ -274,7 +274,7 @@ static int ad5933_setup(struct ad5933_state *st) static void ad5933_calc_out_ranges(struct ad5933_state *st) { int i; - unsigned normalized_3v3[4] = {1980, 198, 383, 970}; + unsigned int normalized_3v3[4] = {1980, 198, 383, 970}; for (i = 0; i < 4; i++) st->range_avail[i] = normalized_3v3[i] * st->vref_mv / 3300; diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c index 9a24e02..a6b76d4 100644 --- a/drivers/staging/iio/meter/ade7758_ring.c +++ b/drivers/staging/iio/meter/ade7758_ring.c @@ -33,7 +33,7 @@ static int ade7758_spi_read_burst(struct iio_dev *indio_dev) return ret; } -static int ade7758_write_waveform_type(struct device *dev, unsigned type) +static int ade7758_write_waveform_type(struct device *dev, unsigned int type) { int ret; u8 reg; @@ -85,7 +85,7 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p) **/ static int ade7758_ring_preenable(struct iio_dev *indio_dev) { - unsigned channel; + unsigned int channel; if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)) return -EINVAL; diff --git a/drivers/staging/iio/resolver/ad2s1210.h b/drivers/staging/iio/resolver/ad2s1210.h index c7158f6..e9b2147 100644 --- a/drivers/staging/iio/resolver/ad2s1210.h +++ b/drivers/staging/iio/resolver/ad2s1210.h @@ -12,9 +12,9 @@ #define _AD2S1210_H struct ad2s1210_platform_data { - unsigned sample; - unsigned a[2]; - unsigned res[2]; - bool gpioin; + unsigned int sample; + unsigned int a[2]; + unsigned int res[2]; + bool gpioin; }; #endif /* _AD2S1210_H */ diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c index 035dd45..aeafad4 100644 --- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c +++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c @@ -55,12 +55,12 @@ static struct bfin_timer iio_bfin_timer_code[MAX_BLACKFIN_GPTIMERS] = { }; struct bfin_tmr_state { - struct iio_trigger *trig; - struct bfin_timer *t; - unsigned timer_num; - bool output_enable; - unsigned int duty; - int irq; + struct iio_trigger *trig; + struct bfin_timer *t; + unsigned int timer_num; + bool output_enable; + unsigned int duty; + int irq; }; static int iio_bfin_tmr_set_state(struct iio_trigger *trig, bool state) -- cgit v0.10.2 From 3d1477309806459d39e13d8c3206ba35d183c34a Mon Sep 17 00:00:00 2001 From: Amitoj Kaur Chawla Date: Sat, 19 Mar 2016 18:02:55 +0530 Subject: staging: lustre: lnet: Replace sg++ with sg = sg_next(sg) With scatterlist chaining, simply incrementing the array does not work. sg_next macro was thus introduced to follow the chain links when necessary. So replace sg++ with sg_next. This change was made with the help of the following Coccinelle semantic patch: // @@ struct scatterlist *sg; @@ -sg++ +sg = sg_next(sg) // Signed-off-by: Amitoj Kaur Chawla Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index 2323e8d..cd3fde7 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -704,7 +704,7 @@ kiblnd_setup_rd_iov(lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd, fragnob = min(fragnob, (int)PAGE_SIZE - page_offset); sg_set_page(sg, page, fragnob, page_offset); - sg++; + sg = sg_next(sg); if (offset + fragnob < iov->iov_len) { offset += fragnob; @@ -748,7 +748,7 @@ kiblnd_setup_rd_kiov(lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd, sg_set_page(sg, kiov->kiov_page, fragnob, kiov->kiov_offset + offset); - sg++; + sg = sg_next(sg); offset = 0; kiov++; -- cgit v0.10.2 From bde98b0603cf6ebdf2d5aea7f83f02f88aa35a7f Mon Sep 17 00:00:00 2001 From: James Nunez Date: Sat, 12 Mar 2016 13:00:31 -0500 Subject: staging: lustre: Correct missing newline for CERROR call in sfw_handle_server_rpc This is one of the fixes broken out of patch 10000 that was missed in the merger. With this fix the CERROR called in sfw_handle_server_rpc will print out correctly. Signed-off-by: James Nunez Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4871 Reviewed-on: http://review.whamcloud.com/10000 Reviewed-by: Andreas Dilger Reviewed-by: John L. Hammond Reviewed-by: Cliff White Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index 926c397..0f32f0b 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -1244,7 +1244,7 @@ sfw_handle_server_rpc(struct srpc_server_rpc *rpc) /* Remove timer to avoid racing with it or expiring active session */ if (sfw_del_session_timer()) { - CERROR("Dropping RPC (%s) from %s: racing with expiry timer.", + CERROR("dropping RPC %s from %s: racing with expiry timer\n", sv->sv_name, libcfs_id2str(rpc->srpc_peer)); spin_unlock(&sfw_data.fw_lock); return -EAGAIN; -- cgit v0.10.2 From ea25f451a063e1934402fab578d85ea8254d3dee Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Sat, 12 Mar 2016 13:00:32 -0500 Subject: staging: lustre: add missing buffer overflow fix for console.c Patch 9389 change a strncpy call into a strlcpy call. This was missed in the merger into the upstream client. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4629 Reviewed-on: http://review.whamcloud.com/9389 Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 1a923ea..c009ad3 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -1749,7 +1749,7 @@ lstcon_session_new(char *name, int key, unsigned feats, if (strlen(name) > sizeof(console_session.ses_name) - 1) return -E2BIG; - strncpy(console_session.ses_name, name, + strlcpy(console_session.ses_name, name, sizeof(console_session.ses_name)); rc = lstcon_batch_add(LST_DEFAULT_BATCH); -- cgit v0.10.2 From 3eaf9fcc4b97dc3a475d2328c29cfd46615b3e55 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sat, 12 Mar 2016 13:00:33 -0500 Subject: staging: lustre: handle error returned from wait_event_timeout seltest timer The function wait_event_timeout can fail and return an error. Handle this case in stt_timer_main(). Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/timer.c b/drivers/staging/lustre/lnet/selftest/timer.c index 8be5252..ef8a8a7 100644 --- a/drivers/staging/lustre/lnet/selftest/timer.c +++ b/drivers/staging/lustre/lnet/selftest/timer.c @@ -170,20 +170,22 @@ stt_check_timers(unsigned long *last) static int stt_timer_main(void *arg) { + int rc = 0; + cfs_block_allsigs(); while (!stt_data.stt_shuttingdown) { stt_check_timers(&stt_data.stt_prev_slot); - wait_event_timeout(stt_data.stt_waitq, - stt_data.stt_shuttingdown, - cfs_time_seconds(STTIMER_SLOTTIME)); + rc = wait_event_timeout(stt_data.stt_waitq, + stt_data.stt_shuttingdown, + cfs_time_seconds(STTIMER_SLOTTIME)); } spin_lock(&stt_data.stt_lock); stt_data.stt_nthreads--; spin_unlock(&stt_data.stt_lock); - return 0; + return rc; } static int -- cgit v0.10.2 From 9b8fa4456cf3f6428958a71fdcc5fef64f3f0e11 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sat, 12 Mar 2016 13:00:34 -0500 Subject: staging: lustre: remove excess blank lines in lnet selftest code Remove extra blank lines missed by checkpatch. Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index eebc924..69812fc 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -91,7 +91,6 @@ brw_client_init(sfw_test_instance_t *tsi) * but we have to keep it for compatibility */ len = npg * PAGE_CACHE_SIZE; - } else { test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1; @@ -279,7 +278,6 @@ brw_client_prep_rpc(sfw_test_unit_t *tsu, flags = breq->blk_flags; npg = breq->blk_npg; len = npg * PAGE_CACHE_SIZE; - } else { test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1; diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index bcd7888..d11869a 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -531,7 +531,6 @@ lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans, continue; error = readent(trans->tas_opc, msg, ent); - if (error) return error; } @@ -841,7 +840,6 @@ lstcon_testrpc_prep(lstcon_node_t *nd, int transop, unsigned feats, trq->tsr_ndest = 0; trq->tsr_loop = nmax * test->tes_dist * test->tes_concur; - } else { bulk = &(*crpc)->crp_rpc->crpc_bulk; diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index c009ad3..17d0d13 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -977,7 +977,6 @@ lstcon_batch_info(char *name, lstcon_test_batch_ent_t __user *ent_up, if (!test) { entp->u.tbe_batch.bae_ntest = bat->bat_ntest; entp->u.tbe_batch.bae_state = bat->bat_state; - } else { entp->u.tbe_test.tse_type = test->tes_type; entp->u.tbe_test.tse_loop = test->tes_loop; @@ -1423,7 +1422,6 @@ lstcon_test_batch_query(char *name, int testidx, int client, translist = &batch->bat_trans_list; ndlist = &batch->bat_cli_list; hdr = &batch->bat_hdr; - } else { /* query specified test only */ rc = lstcon_test_find(batch, testidx, &test); -- cgit v0.10.2 From 0b4427deebab7cf86917772f8e00061c63494cd3 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sat, 12 Mar 2016 13:00:35 -0500 Subject: staging: lustre: realign some code in lnet selftest so its readable Two places to align the code so it is easier to read. Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 17d0d13..6ec8952 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -733,7 +733,7 @@ lstcon_group_list(int index, int len, char __user *name_up) list_for_each_entry(grp, &console_session.ses_grp_list, grp_link) { if (!index--) { return copy_to_user(name_up, grp->grp_name, len) ? - -EFAULT : 0; + -EFAULT : 0; } } diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c index 81a4504..438fca2 100644 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c @@ -86,8 +86,8 @@ ping_client_fini(sfw_test_instance_t *tsi) } static int -ping_client_prep_rpc(sfw_test_unit_t *tsu, - lnet_process_id_t dest, srpc_client_rpc_t **rpc) +ping_client_prep_rpc(sfw_test_unit_t *tsu, lnet_process_id_t dest, + srpc_client_rpc_t **rpc) { srpc_ping_reqst_t *req; sfw_test_instance_t *tsi = tsu->tsu_instance; -- cgit v0.10.2 From dae0587ef0c8e6584837d3737fc5555eb2b36097 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sat, 12 Mar 2016 13:00:36 -0500 Subject: staging: lustre: cleanup comment style for lnet selftest Apply a consistent style for comments in the lnet selftest code. Realign some of the comments to make it easier to read. This also fixes a few checkpatch issues as well. Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index 69812fc..b33c356 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -327,7 +327,7 @@ brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc) if (rpc->crpc_status) { CERROR("BRW RPC to %s failed with %d\n", libcfs_id2str(rpc->crpc_dest), rpc->crpc_status); - if (!tsi->tsi_stopping) /* rpc could have been aborted */ + if (!tsi->tsi_stopping) /* rpc could have been aborted */ atomic_inc(&sn->sn_brw_errors); return; } diff --git a/drivers/staging/lustre/lnet/selftest/conctl.c b/drivers/staging/lustre/lnet/selftest/conctl.c index 5c7cb72..6e2a81d 100644 --- a/drivers/staging/lustre/lnet/selftest/conctl.c +++ b/drivers/staging/lustre/lnet/selftest/conctl.c @@ -51,9 +51,9 @@ lst_session_new_ioctl(lstio_session_new_args_t *args) char *name; int rc; - if (!args->lstio_ses_idp || /* address for output sid */ - !args->lstio_ses_key || /* no key is specified */ - !args->lstio_ses_namep || /* session name */ + if (!args->lstio_ses_idp || /* address for output sid */ + !args->lstio_ses_key || /* no key is specified */ + !args->lstio_ses_namep || /* session name */ args->lstio_ses_nmlen <= 0 || args->lstio_ses_nmlen > LST_NAME_SIZE) return -EINVAL; @@ -95,11 +95,11 @@ lst_session_info_ioctl(lstio_session_info_args_t *args) { /* no checking of key */ - if (!args->lstio_ses_idp || /* address for output sid */ - !args->lstio_ses_keyp || /* address for output key */ - !args->lstio_ses_featp || /* address for output features */ - !args->lstio_ses_ndinfo || /* address for output ndinfo */ - !args->lstio_ses_namep || /* address for output name */ + if (!args->lstio_ses_idp || /* address for output sid */ + !args->lstio_ses_keyp || /* address for output key */ + !args->lstio_ses_featp || /* address for output features */ + !args->lstio_ses_ndinfo || /* address for output ndinfo */ + !args->lstio_ses_namep || /* address for output name */ args->lstio_ses_nmlen <= 0 || args->lstio_ses_nmlen > LST_NAME_SIZE) return -EINVAL; @@ -125,7 +125,7 @@ lst_debug_ioctl(lstio_debug_args_t *args) if (!args->lstio_dbg_resultp) return -EINVAL; - if (args->lstio_dbg_namep && /* name of batch/group */ + if (args->lstio_dbg_namep && /* name of batch/group */ (args->lstio_dbg_nmlen <= 0 || args->lstio_dbg_nmlen > LST_NAME_SIZE)) return -EINVAL; @@ -326,7 +326,7 @@ lst_nodes_add_ioctl(lstio_group_nodes_args_t *args) if (args->lstio_grp_key != console_session.ses_key) return -EACCES; - if (!args->lstio_grp_idsp || /* array of ids */ + if (!args->lstio_grp_idsp || /* array of ids */ args->lstio_grp_count <= 0 || !args->lstio_grp_resultp || !args->lstio_grp_featp || @@ -394,13 +394,13 @@ lst_group_info_ioctl(lstio_group_info_args_t *args) args->lstio_grp_nmlen > LST_NAME_SIZE) return -EINVAL; - if (!args->lstio_grp_entp && /* output: group entry */ - !args->lstio_grp_dentsp) /* output: node entry */ + if (!args->lstio_grp_entp && /* output: group entry */ + !args->lstio_grp_dentsp) /* output: node entry */ return -EINVAL; - if (args->lstio_grp_dentsp) { /* have node entry */ - if (!args->lstio_grp_idxp || /* node index */ - !args->lstio_grp_ndentp) /* # of node entry */ + if (args->lstio_grp_dentsp) { /* have node entry */ + if (!args->lstio_grp_idxp || /* node index */ + !args->lstio_grp_ndentp) /* # of node entry */ return -EINVAL; if (copy_from_user(&ndent, args->lstio_grp_ndentp, @@ -612,18 +612,18 @@ lst_batch_info_ioctl(lstio_batch_info_args_t *args) if (args->lstio_bat_key != console_session.ses_key) return -EACCES; - if (!args->lstio_bat_namep || /* batch name */ + if (!args->lstio_bat_namep || /* batch name */ args->lstio_bat_nmlen <= 0 || args->lstio_bat_nmlen > LST_NAME_SIZE) return -EINVAL; - if (!args->lstio_bat_entp && /* output: batch entry */ - !args->lstio_bat_dentsp) /* output: node entry */ + if (!args->lstio_bat_entp && /* output: batch entry */ + !args->lstio_bat_dentsp) /* output: node entry */ return -EINVAL; - if (args->lstio_bat_dentsp) { /* have node entry */ - if (!args->lstio_bat_idxp || /* node index */ - !args->lstio_bat_ndentp) /* # of node entry */ + if (args->lstio_bat_dentsp) { /* have node entry */ + if (!args->lstio_bat_idxp || /* node index */ + !args->lstio_bat_ndentp) /* # of node entry */ return -EINVAL; if (copy_from_user(&index, args->lstio_bat_idxp, @@ -722,18 +722,18 @@ static int lst_test_add_ioctl(lstio_test_args_t *args) if (!args->lstio_tes_resultp || !args->lstio_tes_retp || - !args->lstio_tes_bat_name || /* no specified batch */ + !args->lstio_tes_bat_name || /* no specified batch */ args->lstio_tes_bat_nmlen <= 0 || args->lstio_tes_bat_nmlen > LST_NAME_SIZE || - !args->lstio_tes_sgrp_name || /* no source group */ + !args->lstio_tes_sgrp_name || /* no source group */ args->lstio_tes_sgrp_nmlen <= 0 || args->lstio_tes_sgrp_nmlen > LST_NAME_SIZE || - !args->lstio_tes_dgrp_name || /* no target group */ + !args->lstio_tes_dgrp_name || /* no target group */ args->lstio_tes_dgrp_nmlen <= 0 || args->lstio_tes_dgrp_nmlen > LST_NAME_SIZE) return -EINVAL; - if (!args->lstio_tes_loop || /* negative is infinite */ + if (!args->lstio_tes_loop || /* negative is infinite */ args->lstio_tes_concur <= 0 || args->lstio_tes_dist <= 0 || args->lstio_tes_span <= 0) diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index d11869a..3908c10 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -296,8 +296,8 @@ lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error) spin_lock(&rpc->crpc_lock); - if (!crpc->crp_posted || /* not posted */ - crpc->crp_stamp) { /* rpc done or aborted already */ + if (!crpc->crp_posted || /* not posted */ + crpc->crp_stamp) { /* rpc done or aborted already */ if (!crpc->crp_stamp) { crpc->crp_stamp = cfs_time_current(); crpc->crp_status = -EINTR; @@ -562,10 +562,10 @@ lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans) } /* - * rpcs can be still not callbacked (even LNetMDUnlink is called) - * because huge timeout for inaccessible network, don't make - * user wait for them, just abandon them, they will be recycled - * in callback + * rpcs can be still not callbacked (even LNetMDUnlink is + * called) because huge timeout for inaccessible network, + * don't make user wait for them, just abandon them, they + * will be recycled in callback */ LASSERT(crpc->crp_status); @@ -938,7 +938,7 @@ lstcon_sesnew_stat_reply(lstcon_rpc_trans_t *trans, if (!trans->tas_feats_updated) { spin_lock(&console_session.ses_rpc_lock); - if (!trans->tas_feats_updated) { /* recheck with lock */ + if (!trans->tas_feats_updated) { /* recheck with lock */ trans->tas_feats_updated = 1; trans->tas_features = reply->msg_ses_feats; } @@ -1178,7 +1178,8 @@ lstcon_rpc_pinger(void *arg) int count = 0; int rc; - /* RPC pinger is a special case of transaction, + /* + * RPC pinger is a special case of transaction, * it's called by timer at 8 seconds interval. */ mutex_lock(&console_session.ses_mutex); diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 6ec8952..dcfc83d 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -277,7 +277,7 @@ lstcon_group_find(const char *name, lstcon_group_t **grpp) if (strncmp(grp->grp_name, name, LST_NAME_SIZE)) continue; - lstcon_group_addref(grp); /* +1 ref for caller */ + lstcon_group_addref(grp); /* +1 ref for caller */ *grpp = grp; return 0; } @@ -1446,7 +1446,8 @@ lstcon_test_batch_query(char *name, int testidx, int client, lstcon_rpc_trans_postwait(trans, timeout); - if (!testidx && /* query a batch, not a test */ + /* query a batch, not a test */ + if (!testidx && !lstcon_rpc_stat_failure(lstcon_trans_stat(), 0) && !lstcon_tsbqry_stat_run(lstcon_trans_stat(), 0)) { /* all RPCs finished, and no active test */ diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index 0f32f0b..aa646a7 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -226,7 +226,7 @@ __must_hold(&sfw_data.fw_lock) } if (nactive) - return; /* wait for active batches to stop */ + return; /* wait for active batches to stop */ list_del_init(&sn->sn_list); spin_unlock(&sfw_data.fw_lock); @@ -693,7 +693,7 @@ sfw_unpack_addtest_req(srpc_msg_t *msg) LASSERT(req->tsr_is_client); if (msg->msg_magic == SRPC_MSG_MAGIC) - return; /* no flipping needed */ + return; /* no flipping needed */ LASSERT(msg->msg_magic == __swab32(SRPC_MSG_MAGIC)); @@ -789,7 +789,7 @@ sfw_add_test_instance(sfw_batch_t *tsb, struct srpc_server_rpc *rpc) int j; dests = page_address(bk->bk_iovs[i / SFW_ID_PER_PAGE].kiov_page); - LASSERT(dests); /* my pages are within KVM always */ + LASSERT(dests); /* my pages are within KVM always */ id = dests[i % SFW_ID_PER_PAGE]; if (msg->msg_magic != SRPC_MSG_MAGIC) sfw_unpack_id(id); @@ -844,8 +844,8 @@ sfw_test_unit_done(sfw_test_unit_t *tsu) spin_lock(&sfw_data.fw_lock); - if (!atomic_dec_and_test(&tsb->bat_nactive) ||/* tsb still active */ - sn == sfw_data.fw_session) { /* sn also active */ + if (!atomic_dec_and_test(&tsb->bat_nactive) || /* tsb still active */ + sn == sfw_data.fw_session) { /* sn also active */ spin_unlock(&sfw_data.fw_lock); return; } @@ -1273,7 +1273,7 @@ sfw_handle_server_rpc(struct srpc_server_rpc *rpc) } } else if (request->msg_ses_feats & ~LST_FEATS_MASK) { - /** + /* * NB: at this point, old version will ignore features and * create new session anyway, so console should be able * to handle this diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c index 438fca2..c7c50be 100644 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c @@ -129,7 +129,7 @@ ping_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc) LASSERT(sn); if (rpc->crpc_status) { - if (!tsi->tsi_stopping) /* rpc could have been aborted */ + if (!tsi->tsi_stopping) /* rpc could have been aborted */ atomic_inc(&sn->sn_ping_errors); CERROR("Unable to ping %s (%d): %d\n", libcfs_id2str(rpc->crpc_dest), diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index 69be7d6..ab8ba37 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -1332,8 +1332,8 @@ srpc_abort_rpc(srpc_client_rpc_t *rpc, int why) { LASSERT(why); - if (rpc->crpc_aborted || /* already aborted */ - rpc->crpc_closed) /* callback imminent */ + if (rpc->crpc_aborted || /* already aborted */ + rpc->crpc_closed) /* callback imminent */ return; CDEBUG(D_NET, "Aborting RPC: service %d, peer %s, state %s, why %d\n", @@ -1401,7 +1401,7 @@ srpc_send_reply(struct srpc_server_rpc *rpc) rpc->srpc_peer, rpc->srpc_self, &rpc->srpc_replymdh, ev); if (rc) - ev->ev_fired = 1; /* no more event expected */ + ev->ev_fired = 1; /* no more event expected */ return rc; } @@ -1509,7 +1509,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev) scd->scd_buf_err = 0; } - if (!scd->scd_buf_err && /* adding buffer is enabled */ + if (!scd->scd_buf_err && /* adding buffer is enabled */ !scd->scd_buf_adjust && scd->scd_buf_nposted < scd->scd_buf_low) { scd->scd_buf_adjust = max(scd->scd_buf_total / 2, diff --git a/drivers/staging/lustre/lnet/selftest/timer.c b/drivers/staging/lustre/lnet/selftest/timer.c index ef8a8a7..b6c4aae 100644 --- a/drivers/staging/lustre/lnet/selftest/timer.c +++ b/drivers/staging/lustre/lnet/selftest/timer.c @@ -49,7 +49,7 @@ * sorted by increasing expiry time. The number of slots is 2**7 (128), * to cover a time period of 1024 seconds into the future before wrapping. */ -#define STTIMER_MINPOLL 3 /* log2 min poll interval (8 s) */ +#define STTIMER_MINPOLL 3 /* log2 min poll interval (8 s) */ #define STTIMER_SLOTTIME (1 << STTIMER_MINPOLL) #define STTIMER_SLOTTIMEMASK (~(STTIMER_SLOTTIME - 1)) #define STTIMER_NSLOTS (1 << 7) -- cgit v0.10.2 From b899963f158056f19928ed5dc7314fac5b57db97 Mon Sep 17 00:00:00 2001 From: David Kershner Date: Fri, 11 Mar 2016 17:01:38 -0500 Subject: staging: unisys: visorbus: cleanup goto in setup_crash_devices_work_queue If visorbus has registered yet just reschedule and exit. The rest of the function doesn't need to reschedule so just move it up to the initial check. Signed-off-by: David Kershner Signed-off-by: Timothy Sell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 5fbda7b..3fd4bea 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -1979,8 +1979,11 @@ setup_crash_devices_work_queue(struct work_struct *work) u16 local_crash_msg_count; /* make sure visorbus is registered for controlvm callbacks */ - if (visorchipset_visorbusregwait && !visorbusregistered) - goto cleanup; + if (visorchipset_visorbusregwait && !visorbusregistered) { + poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_SLOW; + schedule_delayed_work(&periodic_controlvm_work, poll_jiffies); + return; + } POSTCODE_LINUX_2(CRASH_DEV_ENTRY_PC, POSTCODE_SEVERITY_INFO); @@ -2057,13 +2060,6 @@ setup_crash_devices_work_queue(struct work_struct *work) return; } POSTCODE_LINUX_2(CRASH_DEV_EXIT_PC, POSTCODE_SEVERITY_INFO); - return; - -cleanup: - - poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_SLOW; - - schedule_delayed_work(&periodic_controlvm_work, poll_jiffies); } static void -- cgit v0.10.2 From dde29996cdb1514a457ffbfaaf8f795d66fe2a5a Mon Sep 17 00:00:00 2001 From: David Kershner Date: Fri, 11 Mar 2016 17:01:39 -0500 Subject: staging: unisys: visorbus: get rid of gotos in intialize_controlvm_payload_info Get rid of the gotos in initialize_controlvm_payload_info. The check in the error path if payload was valid was never called so get rid of that as well. Signed-off-by: David Kershner Signed-off-by: Timothy Sell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 3fd4bea..6ab659c 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -1382,35 +1382,23 @@ initialize_controlvm_payload_info(u64 phys_addr, u64 offset, u32 bytes, struct visor_controlvm_payload_info *info) { u8 *payload = NULL; - int rc = CONTROLVM_RESP_SUCCESS; - if (!info) { - rc = -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID; - goto cleanup; - } + if (!info) + return -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID; + memset(info, 0, sizeof(struct visor_controlvm_payload_info)); - if ((offset == 0) || (bytes == 0)) { - rc = -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID; - goto cleanup; - } + if ((offset == 0) || (bytes == 0)) + return -CONTROLVM_RESP_ERROR_PAYLOAD_INVALID; + payload = memremap(phys_addr + offset, bytes, MEMREMAP_WB); - if (!payload) { - rc = -CONTROLVM_RESP_ERROR_IOREMAP_FAILED; - goto cleanup; - } + if (!payload) + return -CONTROLVM_RESP_ERROR_IOREMAP_FAILED; info->offset = offset; info->bytes = bytes; info->ptr = payload; -cleanup: - if (rc < 0) { - if (payload) { - memunmap(payload); - payload = NULL; - } - } - return rc; + return CONTROLVM_RESP_SUCCESS; } static void -- cgit v0.10.2 From d79f56b59917fcd3e21190f281e07ebda628eb17 Mon Sep 17 00:00:00 2001 From: David Kershner Date: Fri, 11 Mar 2016 17:01:40 -0500 Subject: staging: unisys: visorbus: cleanup gotos in parser_init_byte_stream Clean up the goto in parser_init_byte_stream and make the goto section the error case. Signed-off-by: David Kershner Signed-off-by: Timothy Sell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 6ab659c..6598d69 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -359,8 +359,7 @@ static struct parser_context * parser_init_byte_stream(u64 addr, u32 bytes, bool local, bool *retry) { int allocbytes = sizeof(struct parser_context) + bytes; - struct parser_context *rc = NULL; - struct parser_context *ctx = NULL; + struct parser_context *ctx; if (retry) *retry = false; @@ -374,15 +373,13 @@ parser_init_byte_stream(u64 addr, u32 bytes, bool local, bool *retry) > MAX_CONTROLVM_PAYLOAD_BYTES) { if (retry) *retry = true; - rc = NULL; - goto cleanup; + return NULL; } ctx = kzalloc(allocbytes, GFP_KERNEL | __GFP_NORETRY); if (!ctx) { if (retry) *retry = true; - rc = NULL; - goto cleanup; + return NULL; } ctx->allocbytes = allocbytes; @@ -393,35 +390,27 @@ parser_init_byte_stream(u64 addr, u32 bytes, bool local, bool *retry) if (local) { void *p; - if (addr > virt_to_phys(high_memory - 1)) { - rc = NULL; - goto cleanup; - } + if (addr > virt_to_phys(high_memory - 1)) + goto err_finish_ctx; p = __va((unsigned long)(addr)); memcpy(ctx->data, p, bytes); } else { void *mapping = memremap(addr, bytes, MEMREMAP_WB); - if (!mapping) { - rc = NULL; - goto cleanup; - } + if (!mapping) + goto err_finish_ctx; memcpy(ctx->data, mapping, bytes); memunmap(mapping); } ctx->byte_stream = true; - rc = ctx; -cleanup: - if (rc) { - controlvm_payload_bytes_buffered += ctx->param_bytes; - } else { - if (ctx) { - parser_done(ctx); - ctx = NULL; - } - } - return rc; + controlvm_payload_bytes_buffered += ctx->param_bytes; + + return ctx; + +err_finish_ctx: + parser_done(ctx); + return NULL; } static uuid_le -- cgit v0.10.2 From 5233d1ebb6c99ca67521cdeb66dccd1256820d5f Mon Sep 17 00:00:00 2001 From: David Kershner Date: Fri, 11 Mar 2016 17:01:41 -0500 Subject: staging: unisys: visorbus: chipset_init rename goto Change the goto label "cleanup" to something more useful like out_respond. Signed-off-by: David Kershner Signed-off-by: Timothy Sell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 6598d69..e278595 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -761,7 +761,7 @@ chipset_init(struct controlvm_message *inmsg) POSTCODE_LINUX_2(CHIPSET_INIT_ENTRY_PC, POSTCODE_SEVERITY_INFO); if (chipset_inited) { rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; - goto cleanup; + goto out_respond; } chipset_inited = 1; POSTCODE_LINUX_2(CHIPSET_INIT_EXIT_PC, POSTCODE_SEVERITY_INFO); @@ -778,7 +778,7 @@ chipset_init(struct controlvm_message *inmsg) */ features |= ULTRA_CHIPSET_FEATURE_REPLY; -cleanup: +out_respond: if (inmsg->hdr.flags.response_expected) controlvm_respond_chipset_init(&inmsg->hdr, rc, features); } -- cgit v0.10.2 From 9fd04060abdfd1e2ec763ea0096cc91026c77cca Mon Sep 17 00:00:00 2001 From: David Kershner Date: Fri, 11 Mar 2016 17:01:42 -0500 Subject: staging: unisys: visorbus: Cleanup goto in bus_create Rename it to what it does instead of the default ambiguous cleanup. Signed-off-by: David Kershner Signed-off-by: Timothy Sell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index e278595..49d9922 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -1131,14 +1131,14 @@ bus_create(struct controlvm_message *inmsg) POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus_no, POSTCODE_SEVERITY_ERR); rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; - goto cleanup; + goto out_bus_epilog; } bus_info = kzalloc(sizeof(*bus_info), GFP_KERNEL); if (!bus_info) { POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus_no, POSTCODE_SEVERITY_ERR); rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; - goto cleanup; + goto out_bus_epilog; } INIT_LIST_HEAD(&bus_info->list_all); @@ -1158,7 +1158,7 @@ bus_create(struct controlvm_message *inmsg) rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; kfree(bus_info); bus_info = NULL; - goto cleanup; + goto out_bus_epilog; } bus_info->visorchannel = visorchannel; if (uuid_le_cmp(cmd->create_bus.bus_inst_uuid, spar_siovm_uuid) == 0) { @@ -1168,7 +1168,7 @@ bus_create(struct controlvm_message *inmsg) POSTCODE_LINUX_3(BUS_CREATE_EXIT_PC, bus_no, POSTCODE_SEVERITY_INFO); -cleanup: +out_bus_epilog: bus_epilog(bus_info, CONTROLVM_BUS_CREATE, &inmsg->hdr, rc, inmsg->hdr.flags.response_expected == 1); } -- cgit v0.10.2 From 368acb3f512b415d11bfc3801b4a3d1453cc455d Mon Sep 17 00:00:00 2001 From: David Kershner Date: Fri, 11 Mar 2016 17:01:43 -0500 Subject: staging: unisys: visorbus: Cleanup bus_epilog goto statements Cleaned up bus_epilogs vague gotos and in the process discovered some error paths that could unlock a non locked semaphore. Signed-off-by: David Kershner Signed-off-by: Timothy Sell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 49d9922..b1c5e9e 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -962,25 +962,29 @@ bus_epilog(struct visor_device *bus_info, bool notified = false; struct controlvm_message_header *pmsg_hdr = NULL; + down(¬ifier_lock); + if (!bus_info) { /* relying on a valid passed in response code */ /* be lazy and re-use msg_hdr for this failure, is this ok?? */ pmsg_hdr = msg_hdr; - goto away; + goto out_respond_and_unlock; } if (bus_info->pending_msg_hdr) { /* only non-NULL if dev is still waiting on a response */ response = -CONTROLVM_RESP_ERROR_MESSAGE_ID_INVALID_FOR_CLIENT; pmsg_hdr = bus_info->pending_msg_hdr; - goto away; + goto out_respond_and_unlock; } if (need_response) { pmsg_hdr = kzalloc(sizeof(*pmsg_hdr), GFP_KERNEL); if (!pmsg_hdr) { - response = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; - goto away; + POSTCODE_LINUX_4(MALLOC_FAILURE_PC, cmd, + bus_info->chipset_bus_no, + POSTCODE_SEVERITY_ERR); + goto out_unlock; } memcpy(pmsg_hdr, msg_hdr, @@ -988,7 +992,6 @@ bus_epilog(struct visor_device *bus_info, bus_info->pending_msg_hdr = pmsg_hdr; } - down(¬ifier_lock); if (response == CONTROLVM_RESP_SUCCESS) { switch (cmd) { case CONTROLVM_BUS_CREATE: @@ -1005,7 +1008,8 @@ bus_epilog(struct visor_device *bus_info, break; } } -away: + +out_respond_and_unlock: if (notified) /* The callback function just called above is responsible * for calling the appropriate visorchipset_busdev_responders @@ -1019,6 +1023,8 @@ away: * directly and kfree() there. */ bus_responder(cmd, pmsg_hdr, response); + +out_unlock: up(¬ifier_lock); } -- cgit v0.10.2 From c6af7a9cbcfa65b9322436836ad7cc323d2d5d6d Mon Sep 17 00:00:00 2001 From: David Kershner Date: Fri, 11 Mar 2016 17:01:44 -0500 Subject: staging: unisys: visorbus: fix my_create_device goto statements Don't use the abmiguous cleanup, make it more meaningful. Signed-off-by: David Kershner Signed-off-by: Timothy Sell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index b1c5e9e..17bedbc 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -1255,14 +1255,14 @@ my_device_create(struct controlvm_message *inmsg) POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no, POSTCODE_SEVERITY_ERR); rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; - goto cleanup; + goto out_respond; } if (bus_info->state.created == 0) { POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no, POSTCODE_SEVERITY_ERR); rc = -CONTROLVM_RESP_ERROR_BUS_INVALID; - goto cleanup; + goto out_respond; } dev_info = visorbus_get_device_by_id(bus_no, dev_no, NULL); @@ -1270,7 +1270,7 @@ my_device_create(struct controlvm_message *inmsg) POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no, POSTCODE_SEVERITY_ERR); rc = -CONTROLVM_RESP_ERROR_ALREADY_DONE; - goto cleanup; + goto out_respond; } dev_info = kzalloc(sizeof(*dev_info), GFP_KERNEL); @@ -1278,7 +1278,7 @@ my_device_create(struct controlvm_message *inmsg) POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no, POSTCODE_SEVERITY_ERR); rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; - goto cleanup; + goto out_respond; } dev_info->chipset_bus_no = bus_no; @@ -1303,7 +1303,7 @@ my_device_create(struct controlvm_message *inmsg) rc = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; kfree(dev_info); dev_info = NULL; - goto cleanup; + goto out_respond; } dev_info->visorchannel = visorchannel; dev_info->channel_type_guid = cmd->create_device.data_type_uuid; @@ -1313,7 +1313,7 @@ my_device_create(struct controlvm_message *inmsg) POSTCODE_LINUX_4(DEVICE_CREATE_EXIT_PC, dev_no, bus_no, POSTCODE_SEVERITY_INFO); -cleanup: +out_respond: device_epilog(dev_info, segment_state_running, CONTROLVM_DEVICE_CREATE, &inmsg->hdr, rc, inmsg->hdr.flags.response_expected == 1, 1); -- cgit v0.10.2 From 4000622ec21ba5e93fdb74bc4168a9545a089ce7 Mon Sep 17 00:00:00 2001 From: David Kershner Date: Sat, 12 Mar 2016 21:27:08 -0500 Subject: staging: unisys: visorbus: Fix up visordriver_probe Fixup the visordriver_probe function. Rearrange the function to avoid needing gotos and removed unnecessary wmb(). Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 533bb5b..6a12829 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -752,36 +752,28 @@ dev_stop_periodic_work(struct visor_device *dev) static int visordriver_probe_device(struct device *xdev) { - int rc; + int res; struct visor_driver *drv; struct visor_device *dev; drv = to_visor_driver(xdev->driver); dev = to_visor_device(xdev); + + if (!drv->probe) + return -ENODEV; + down(&dev->visordriver_callback_lock); dev->being_removed = false; - /* - * ensure that the dev->being_removed flag is cleared before - * we start the probe - */ - wmb(); - get_device(&dev->device); - if (!drv->probe) { - up(&dev->visordriver_callback_lock); - rc = -ENODEV; - goto away; + + res = drv->probe(dev); + if (res >= 0) { + /* success: reference kept via unmatched get_device() */ + get_device(&dev->device); + fix_vbus_dev_info(dev); } - rc = drv->probe(dev); - if (rc < 0) - goto away; - fix_vbus_dev_info(dev); up(&dev->visordriver_callback_lock); - rc = 0; -away: - if (rc != 0) - put_device(&dev->device); - return rc; + return res; } /** This is called when device_unregister() is called for each child device -- cgit v0.10.2 From b750b05939778a8b43fc7e3c96a48f59d123451d Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Sat, 12 Mar 2016 21:27:09 -0500 Subject: staging: unisys: visorbus: remove unused sysfs attribute devmajorminor/* The sysfs attribute directory at: /sys/bus/visorbus/devices/vbus:dev/devmajorminor/* or /sys/devices/visorbus/vbus:dev/devmajorminor/* previously provided a location where a visorbus function driver could publish information (for usermode use) about possibly-multiple major and minor device numbers for character devices created for a each visorbus device, using visorbus_registerdevnode(). This functionality is not currently used, so it has been removed by this cset. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/Documentation/overview.txt b/drivers/staging/unisys/Documentation/overview.txt index c2d8dd4..1146c1c 100644 --- a/drivers/staging/unisys/Documentation/overview.txt +++ b/drivers/staging/unisys/Documentation/overview.txt @@ -137,12 +137,6 @@ called automatically by the visorbus driver at appropriate times: * The resume() function is the "book-end" to pause(), and is described above. -If/when a function driver creates a Linux device (that needs to be accessed -from usermode), it calls visorbus_registerdevnode(), passing the major and -minor number of the device. (Of course not all function drivers will need -to do this.) This simply creates the appropriate "devmajorminor" sysfs entry -described below, so that a hotplug script can use it to create a device node. - 2.1.3. sysfs Advertised Information ----------------------------------- @@ -197,19 +191,6 @@ The following files exist under /sys/devices/visorbus/vbus:dev: if the appropriate function driver has not been loaded yet. - devmajorminor - - if applicable, each file here identifies (via - ... its file contents) the - ":" needed for a device node to - enable access from usermode. There is exactly - one file here for each different device node - that can be accessed (from usermode). Note - that this info is provided by a particular - function driver, so these will not exist - until AFTER the appropriate function driver - controlling this device class is loaded. - channel properties of the device channel (all in ascii text format) diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index 2a64a9c..9c47a13 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -136,7 +136,6 @@ struct visor_device { struct periodic_work *periodic_work; bool being_removed; bool responded_to_device_create; - struct kobject kobjdevmajorminor; /* visorbus/dev/devmajorminor/*/ struct { int major, minor; void *attr; /* private use by devmajorminor_attr.c you can @@ -174,8 +173,6 @@ int visorbus_write_channel(struct visor_device *dev, unsigned long nbytes); int visorbus_clear_channel(struct visor_device *dev, unsigned long offset, u8 ch, unsigned long nbytes); -int visorbus_registerdevnode(struct visor_device *dev, - const char *name, int major, int minor); void visorbus_enable_channel_interrupts(struct visor_device *dev); void visorbus_disable_channel_interrupts(struct visor_device *dev); #endif diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 6a12829..813d29e 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -243,180 +243,6 @@ visorbus_release_device(struct device *xdev) kfree(dev); } -/* Implement publishing of device node attributes under: - * - * /sys/bus/visorbus/dev/devmajorminor - * - */ - -#define to_devmajorminor_attr(_attr) \ - container_of(_attr, struct devmajorminor_attribute, attr) -#define to_visor_device_from_kobjdevmajorminor(obj) \ - container_of(obj, struct visor_device, kobjdevmajorminor) - -struct devmajorminor_attribute { - struct attribute attr; - int slot; - ssize_t (*show)(struct visor_device *, int slot, char *buf); - ssize_t (*store)(struct visor_device *, int slot, const char *buf, - size_t count); -}; - -static ssize_t DEVMAJORMINOR_ATTR(struct visor_device *dev, int slot, char *buf) -{ - int maxdevnodes = ARRAY_SIZE(dev->devnodes) / sizeof(dev->devnodes[0]); - - if (slot < 0 || slot >= maxdevnodes) - return 0; - return snprintf(buf, PAGE_SIZE, "%d:%d\n", - dev->devnodes[slot].major, dev->devnodes[slot].minor); -} - -static ssize_t -devmajorminor_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) -{ - struct devmajorminor_attribute *devmajorminor_attr = - to_devmajorminor_attr(attr); - struct visor_device *dev = to_visor_device_from_kobjdevmajorminor(kobj); - ssize_t ret = 0; - - if (devmajorminor_attr->show) - ret = devmajorminor_attr->show(dev, - devmajorminor_attr->slot, buf); - return ret; -} - -static ssize_t -devmajorminor_attr_store(struct kobject *kobj, - struct attribute *attr, const char *buf, size_t count) -{ - struct devmajorminor_attribute *devmajorminor_attr = - to_devmajorminor_attr(attr); - struct visor_device *dev = to_visor_device_from_kobjdevmajorminor(kobj); - ssize_t ret = 0; - - if (devmajorminor_attr->store) - ret = devmajorminor_attr->store(dev, - devmajorminor_attr->slot, - buf, count); - return ret; -} - -static int register_devmajorminor_attributes(struct visor_device *dev); - -static int -devmajorminor_create_file(struct visor_device *dev, const char *name, - int major, int minor) -{ - int maxdevnodes = ARRAY_SIZE(dev->devnodes) / sizeof(dev->devnodes[0]); - struct devmajorminor_attribute *myattr = NULL; - int x = -1, rc = 0, slot = -1; - - register_devmajorminor_attributes(dev); - for (slot = 0; slot < maxdevnodes; slot++) - if (!dev->devnodes[slot].attr) - break; - if (slot == maxdevnodes) { - rc = -ENOMEM; - goto away; - } - myattr = kzalloc(sizeof(*myattr), GFP_KERNEL); - if (!myattr) { - rc = -ENOMEM; - goto away; - } - myattr->show = DEVMAJORMINOR_ATTR; - myattr->store = NULL; - myattr->slot = slot; - myattr->attr.name = name; - myattr->attr.mode = S_IRUGO; - dev->devnodes[slot].attr = myattr; - dev->devnodes[slot].major = major; - dev->devnodes[slot].minor = minor; - x = sysfs_create_file(&dev->kobjdevmajorminor, &myattr->attr); - if (x < 0) { - rc = x; - goto away; - } - kobject_uevent(&dev->device.kobj, KOBJ_ONLINE); -away: - if (rc < 0) { - kfree(myattr); - myattr = NULL; - dev->devnodes[slot].attr = NULL; - } - return rc; -} - -static void -devmajorminor_remove_file(struct visor_device *dev, int slot) -{ - int maxdevnodes = ARRAY_SIZE(dev->devnodes) / sizeof(dev->devnodes[0]); - struct devmajorminor_attribute *myattr = NULL; - - if (slot < 0 || slot >= maxdevnodes) - return; - myattr = (struct devmajorminor_attribute *)(dev->devnodes[slot].attr); - if (!myattr) - return; - sysfs_remove_file(&dev->kobjdevmajorminor, &myattr->attr); - kobject_uevent(&dev->device.kobj, KOBJ_OFFLINE); - dev->devnodes[slot].attr = NULL; - kfree(myattr); -} - -static void -devmajorminor_remove_all_files(struct visor_device *dev) -{ - int i = 0; - int maxdevnodes = ARRAY_SIZE(dev->devnodes) / sizeof(dev->devnodes[0]); - - for (i = 0; i < maxdevnodes; i++) - devmajorminor_remove_file(dev, i); -} - -static const struct sysfs_ops devmajorminor_sysfs_ops = { - .show = devmajorminor_attr_show, - .store = devmajorminor_attr_store, -}; - -static struct kobj_type devmajorminor_kobj_type = { - .sysfs_ops = &devmajorminor_sysfs_ops -}; - -static int -register_devmajorminor_attributes(struct visor_device *dev) -{ - int rc = 0, x = 0; - - if (dev->kobjdevmajorminor.parent) - goto away; /* already registered */ - x = kobject_init_and_add(&dev->kobjdevmajorminor, - &devmajorminor_kobj_type, &dev->device.kobj, - "devmajorminor"); - if (x < 0) { - rc = x; - goto away; - } - - kobject_uevent(&dev->kobjdevmajorminor, KOBJ_ADD); - -away: - return rc; -} - -static void -unregister_devmajorminor_attributes(struct visor_device *dev) -{ - if (!dev->kobjdevmajorminor.parent) - return; /* already unregistered */ - devmajorminor_remove_all_files(dev); - - kobject_del(&dev->kobjdevmajorminor); - kobject_put(&dev->kobjdevmajorminor); - dev->kobjdevmajorminor.parent = NULL; -} - /* begin implementation of specific channel attributes to appear under * /sys/bus/visorbus/dev/channel */ @@ -801,7 +627,6 @@ visordriver_remove_device(struct device *xdev) } up(&dev->visordriver_callback_lock); dev_stop_periodic_work(dev); - devmajorminor_remove_all_files(dev); put_device(&dev->device); @@ -920,14 +745,6 @@ visorbus_clear_channel(struct visor_device *dev, unsigned long offset, u8 ch, } EXPORT_SYMBOL_GPL(visorbus_clear_channel); -int -visorbus_registerdevnode(struct visor_device *dev, - const char *name, int major, int minor) -{ - return devmajorminor_create_file(dev, name, major, minor); -} -EXPORT_SYMBOL_GPL(visorbus_registerdevnode); - /** We don't really have a real interrupt, so for now we just call the * interrupt function periodically... */ @@ -1018,19 +835,9 @@ create_visor_device(struct visor_device *dev) goto away; } - rc = register_devmajorminor_attributes(dev); - if (rc < 0) { - POSTCODE_LINUX_3(DEVICE_REGISTER_FAILURE_PC, chipset_dev_no, - DIAG_SEVERITY_ERR); - goto away_unregister; - } - list_add_tail(&dev->list_all, &list_all_device_instances); return 0; -away_unregister: - device_unregister(&dev->device); - away: put_device(&dev->device); return rc; @@ -1040,7 +847,6 @@ static void remove_visor_device(struct visor_device *dev) { list_del(&dev->list_all); - unregister_devmajorminor_attributes(dev); put_device(&dev->device); device_unregister(&dev->device); } -- cgit v0.10.2 From 78af1aef662eef4ffac6f453fdc46d3389274f34 Mon Sep 17 00:00:00 2001 From: David Kershner Date: Sat, 12 Mar 2016 21:27:10 -0500 Subject: staging: unisys: visorbus: fix up gotos in visorbus_init This patch fixes the gotos in visorbus_init Signed-off-by: David Kershner Signed-off-by: Timothy Sell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 813d29e..816a16d 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -1275,24 +1275,24 @@ struct channel_size_info { int visorbus_init(void) { - int rc = 0; + int err; - POSTCODE_LINUX_3(DRIVER_ENTRY_PC, rc, POSTCODE_SEVERITY_INFO); + POSTCODE_LINUX_3(DRIVER_ENTRY_PC, 0, POSTCODE_SEVERITY_INFO); bus_device_info_init(&clientbus_driverinfo, "clientbus", "visorbus", VERSION, NULL); - rc = create_bus_type(); - if (rc < 0) { + err = create_bus_type(); + if (err < 0) { POSTCODE_LINUX_2(BUS_CREATE_ENTRY_PC, DIAG_SEVERITY_ERR); - goto away; + goto error; } periodic_dev_workqueue = create_singlethread_workqueue("visorbus_dev"); if (!periodic_dev_workqueue) { POSTCODE_LINUX_2(CREATE_WORKQUEUE_PC, DIAG_SEVERITY_ERR); - rc = -ENOMEM; - goto away; + err = -ENOMEM; + goto error; } /* This enables us to receive notifications when devices appear for @@ -1302,13 +1302,11 @@ visorbus_init(void) &chipset_responders, &chipset_driverinfo); - rc = 0; + return 0; -away: - if (rc) - POSTCODE_LINUX_3(CHIPSET_INIT_FAILURE_PC, rc, - POSTCODE_SEVERITY_ERR); - return rc; +error: + POSTCODE_LINUX_3(CHIPSET_INIT_FAILURE_PC, err, POSTCODE_SEVERITY_ERR); + return err; } void -- cgit v0.10.2 From 8e33f48c9585c82258c8bef1d93149ca27f8d91d Mon Sep 17 00:00:00 2001 From: David Kershner Date: Sat, 12 Mar 2016 21:27:11 -0500 Subject: staging: unisys: visorbus: Remove gotos in visorbus_match Gotos in visorbus_match are not needed. Signed-off-by: David Kershner Signed-off-by: Timothy Sell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 816a16d..b31c44f8 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -182,7 +182,6 @@ static int visorbus_match(struct device *xdev, struct device_driver *xdrv) { uuid_le channel_type; - int rc = 0; int i; struct visor_device *dev; struct visor_driver *drv; @@ -190,26 +189,23 @@ visorbus_match(struct device *xdev, struct device_driver *xdrv) dev = to_visor_device(xdev); drv = to_visor_driver(xdrv); channel_type = visorchannel_get_uuid(dev->visorchannel); - if (visorbus_forcematch) { - rc = 1; - goto away; - } - if (visorbus_forcenomatch) - goto away; + if (visorbus_forcematch) + return 1; + if (visorbus_forcenomatch) + return 0; if (!drv->channel_types) - goto away; + return 0; + for (i = 0; (uuid_le_cmp(drv->channel_types[i].guid, NULL_UUID_LE) != 0) || (drv->channel_types[i].name); i++) if (uuid_le_cmp(drv->channel_types[i].guid, - channel_type) == 0) { - rc = i + 1; - goto away; - } -away: - return rc; + channel_type) == 0) + return i + 1; + + return 0; } /** This is called when device_unregister() is called for the bus device -- cgit v0.10.2 From 0b2acf34f3680c4b0857625af667dcd53d39028e Mon Sep 17 00:00:00 2001 From: David Kershner Date: Sat, 12 Mar 2016 21:27:12 -0500 Subject: staging: unisys: visorbus: rename create_visor_device gotos Away is ambiguous when specifying error vs success. Make return labels more meaningful by marking them as error paths. Signed-off-by: David Kershner Signed-off-by: Timothy Sell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index b31c44f8..54d77dd 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -775,7 +775,7 @@ EXPORT_SYMBOL_GPL(visorbus_disable_channel_interrupts); static int create_visor_device(struct visor_device *dev) { - int rc; + int err; u32 chipset_bus_no = dev->chipset_bus_no; u32 chipset_dev_no = dev->chipset_dev_no; @@ -797,8 +797,8 @@ create_visor_device(struct visor_device *dev) if (!dev->periodic_work) { POSTCODE_LINUX_3(DEVICE_CREATE_FAILURE_PC, chipset_dev_no, DIAG_SEVERITY_ERR); - rc = -EINVAL; - goto away; + err = -EINVAL; + goto err_put; } /* bus_id must be a unique name with respect to this bus TYPE @@ -824,19 +824,19 @@ create_visor_device(struct visor_device *dev) * claim the device. The device will be linked onto * bus_type.klist_devices regardless (use bus_for_each_dev). */ - rc = device_add(&dev->device); - if (rc < 0) { + err = device_add(&dev->device); + if (err < 0) { POSTCODE_LINUX_3(DEVICE_ADD_PC, chipset_bus_no, DIAG_SEVERITY_ERR); - goto away; + goto err_put; } list_add_tail(&dev->list_all, &list_all_device_instances); - return 0; + return 0; /* success: reference kept via unmatched get_device() */ -away: +err_put: put_device(&dev->device); - return rc; + return err; } static void -- cgit v0.10.2 From 437ba274b5e5c813c2cede7051701ff3f0959022 Mon Sep 17 00:00:00 2001 From: Eva Rachel Retuya Date: Sat, 12 Mar 2016 16:19:20 +0800 Subject: staging: iio: tsl2x7x_core: adjust alignment to match open parenthesis Align the parameters to match open parenthesis. Issue detected using checkpatch. CHECK: Alignment should match open parenthesis Signed-off-by: Eva Rachel Retuya Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c index 5f308ba..4948791 100644 --- a/drivers/staging/iio/light/tsl2x7x_core.c +++ b/drivers/staging/iio/light/tsl2x7x_core.c @@ -349,13 +349,13 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev) if (chip->tsl2x7x_chip_status != TSL2X7X_CHIP_WORKING) { /* device is not enabled */ dev_err(&chip->client->dev, "%s: device is not enabled\n", - __func__); + __func__); ret = -EBUSY; goto out_unlock; } ret = tsl2x7x_i2c_read(chip->client, - (TSL2X7X_CMD_REG | TSL2X7X_STATUS), &buf[0]); + (TSL2X7X_CMD_REG | TSL2X7X_STATUS), &buf[0]); if (ret < 0) { dev_err(&chip->client->dev, "%s: Failed to read STATUS Reg\n", __func__); @@ -371,8 +371,8 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev) for (i = 0; i < 4; i++) { ret = tsl2x7x_i2c_read(chip->client, - (TSL2X7X_CMD_REG | (TSL2X7X_ALS_CHAN0LO + i)), - &buf[i]); + (TSL2X7X_CMD_REG | + (TSL2X7X_ALS_CHAN0LO + i)), &buf[i]); if (ret < 0) { dev_err(&chip->client->dev, "failed to read. err=%x\n", ret); @@ -382,9 +382,9 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev) /* clear any existing interrupt status */ ret = i2c_smbus_write_byte(chip->client, - (TSL2X7X_CMD_REG | - TSL2X7X_CMD_SPL_FN | - TSL2X7X_CMD_ALS_INT_CLR)); + (TSL2X7X_CMD_REG | + TSL2X7X_CMD_SPL_FN | + TSL2X7X_CMD_ALS_INT_CLR)); if (ret < 0) { dev_err(&chip->client->dev, "i2c_write_command failed - err = %d\n", ret); @@ -488,7 +488,7 @@ static int tsl2x7x_get_prox(struct iio_dev *indio_dev) } ret = tsl2x7x_i2c_read(chip->client, - (TSL2X7X_CMD_REG | TSL2X7X_STATUS), &status); + (TSL2X7X_CMD_REG | TSL2X7X_STATUS), &status); if (ret < 0) { dev_err(&chip->client->dev, "i2c err=%d\n", ret); goto prox_poll_err; @@ -515,8 +515,8 @@ static int tsl2x7x_get_prox(struct iio_dev *indio_dev) for (i = 0; i < 2; i++) { ret = tsl2x7x_i2c_read(chip->client, - (TSL2X7X_CMD_REG | - (TSL2X7X_PRX_LO + i)), &chdata[i]); + (TSL2X7X_CMD_REG | + (TSL2X7X_PRX_LO + i)), &chdata[i]); if (ret < 0) goto prox_poll_err; } @@ -542,19 +542,19 @@ static void tsl2x7x_defaults(struct tsl2X7X_chip *chip) { /* If Operational settings defined elsewhere.. */ if (chip->pdata && chip->pdata->platform_default_settings) - memcpy(&(chip->tsl2x7x_settings), - chip->pdata->platform_default_settings, - sizeof(tsl2x7x_default_settings)); + memcpy(&chip->tsl2x7x_settings, + chip->pdata->platform_default_settings, + sizeof(tsl2x7x_default_settings)); else - memcpy(&(chip->tsl2x7x_settings), - &tsl2x7x_default_settings, - sizeof(tsl2x7x_default_settings)); + memcpy(&chip->tsl2x7x_settings, + &tsl2x7x_default_settings, + sizeof(tsl2x7x_default_settings)); /* Load up the proper lux table. */ if (chip->pdata && chip->pdata->platform_lux_table[0].ratio != 0) memcpy(chip->tsl2x7x_device_lux, - chip->pdata->platform_lux_table, - sizeof(chip->pdata->platform_lux_table)); + chip->pdata->platform_lux_table, + sizeof(chip->pdata->platform_lux_table)); else memcpy(chip->tsl2x7x_device_lux, (struct tsl2x7x_lux *)tsl2x7x_default_lux_table_group[chip->id], @@ -576,7 +576,7 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev) int lux_val; ret = i2c_smbus_write_byte(chip->client, - (TSL2X7X_CMD_REG | TSL2X7X_CNTRL)); + (TSL2X7X_CMD_REG | TSL2X7X_CNTRL)); if (ret < 0) { dev_err(&chip->client->dev, "failed to write CNTRL register, ret=%d\n", ret); @@ -592,7 +592,7 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev) } ret = i2c_smbus_write_byte(chip->client, - (TSL2X7X_CMD_REG | TSL2X7X_CNTRL)); + (TSL2X7X_CMD_REG | TSL2X7X_CNTRL)); if (ret < 0) { dev_err(&chip->client->dev, "failed to write ctrl reg: ret=%d\n", ret); @@ -609,7 +609,7 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev) lux_val = tsl2x7x_get_lux(indio_dev); if (lux_val < 0) { dev_err(&chip->client->dev, - "%s: failed to get lux\n", __func__); + "%s: failed to get lux\n", __func__); return lux_val; } @@ -620,7 +620,7 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev) chip->tsl2x7x_settings.als_gain_trim = gain_trim_val; dev_info(&chip->client->dev, - "%s als_calibrate completed\n", chip->client->name); + "%s als_calibrate completed\n", chip->client->name); return (int) gain_trim_val; } @@ -699,7 +699,7 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev) * Power on the device 1st. */ utmp = TSL2X7X_CNTL_PWR_ON; ret = i2c_smbus_write_byte_data(chip->client, - TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp); + TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp); if (ret < 0) { dev_err(&chip->client->dev, "%s: failed on CNTRL reg.\n", __func__); @@ -711,7 +711,8 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev) for (i = 0, dev_reg = chip->tsl2x7x_config; i < TSL2X7X_MAX_CONFIG_REG; i++) { ret = i2c_smbus_write_byte_data(chip->client, - TSL2X7X_CMD_REG + i, *dev_reg++); + TSL2X7X_CMD_REG + i, + *dev_reg++); if (ret < 0) { dev_err(&chip->client->dev, "failed on write to reg %d.\n", i); @@ -727,7 +728,7 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev) TSL2X7X_CNTL_ADC_ENBL | TSL2X7X_CNTL_PROX_DET_ENBL; ret = i2c_smbus_write_byte_data(chip->client, - TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp); + TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp); if (ret < 0) { dev_err(&chip->client->dev, "%s: failed on 2nd CTRL reg.\n", __func__); @@ -741,12 +742,13 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev) reg_val = TSL2X7X_CNTL_PWR_ON | TSL2X7X_CNTL_ADC_ENBL; if ((chip->tsl2x7x_settings.interrupts_en == 0x20) || - (chip->tsl2x7x_settings.interrupts_en == 0x30)) + (chip->tsl2x7x_settings.interrupts_en == 0x30)) reg_val |= TSL2X7X_CNTL_PROX_DET_ENBL; reg_val |= chip->tsl2x7x_settings.interrupts_en; ret = i2c_smbus_write_byte_data(chip->client, - (TSL2X7X_CMD_REG | TSL2X7X_CNTRL), reg_val); + (TSL2X7X_CMD_REG | + TSL2X7X_CNTRL), reg_val); if (ret < 0) dev_err(&chip->client->dev, "%s: failed in tsl2x7x_IOCTL_INT_SET.\n", @@ -754,8 +756,9 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev) /* Clear out any initial interrupts */ ret = i2c_smbus_write_byte(chip->client, - TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN | - TSL2X7X_CMD_PROXALS_INT_CLR); + TSL2X7X_CMD_REG | + TSL2X7X_CMD_SPL_FN | + TSL2X7X_CMD_PROXALS_INT_CLR); if (ret < 0) { dev_err(&chip->client->dev, "%s: Failed to clear Int status\n", @@ -776,7 +779,7 @@ static int tsl2x7x_chip_off(struct iio_dev *indio_dev) chip->tsl2x7x_chip_status = TSL2X7X_CHIP_SUSPENDED; ret = i2c_smbus_write_byte_data(chip->client, - TSL2X7X_CMD_REG | TSL2X7X_CNTRL, 0x00); + TSL2X7X_CMD_REG | TSL2X7X_CNTRL, 0x00); if (chip->pdata && chip->pdata->power_off) chip->pdata->power_off(chip->client); @@ -819,7 +822,7 @@ int tsl2x7x_invoke_change(struct iio_dev *indio_dev) static void tsl2x7x_prox_calculate(int *data, int length, - struct tsl2x7x_prox_stat *statP) + struct tsl2x7x_prox_stat *statP) { int i; int sample_sum; @@ -886,20 +889,21 @@ static void tsl2x7x_prox_cal(struct iio_dev *indio_dev) tsl2x7x_get_prox(indio_dev); prox_history[i] = chip->prox_data; dev_info(&chip->client->dev, "2 i=%d prox data= %d\n", - i, chip->prox_data); + i, chip->prox_data); } tsl2x7x_chip_off(indio_dev); calP = &prox_stat_data[PROX_STAT_CAL]; tsl2x7x_prox_calculate(prox_history, - chip->tsl2x7x_settings.prox_max_samples_cal, calP); + chip->tsl2x7x_settings.prox_max_samples_cal, + calP); chip->tsl2x7x_settings.prox_thres_high = (calP->max << 1) - calP->mean; dev_info(&chip->client->dev, " cal min=%d mean=%d max=%d\n", - calP->min, calP->mean, calP->max); + calP->min, calP->mean, calP->max); dev_info(&chip->client->dev, - "%s proximity threshold set to %d\n", - chip->client->name, chip->tsl2x7x_settings.prox_thres_high); + "%s proximity threshold set to %d\n", + chip->client->name, chip->tsl2x7x_settings.prox_thres_high); /* back to the way they were */ chip->tsl2x7x_settings.interrupts_en = tmp_irq_settings; @@ -908,7 +912,8 @@ static void tsl2x7x_prox_cal(struct iio_dev *indio_dev) } static ssize_t tsl2x7x_power_state_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev)); @@ -916,7 +921,8 @@ static ssize_t tsl2x7x_power_state_show(struct device *dev, } static ssize_t tsl2x7x_power_state_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); bool value; @@ -933,7 +939,8 @@ static ssize_t tsl2x7x_power_state_store(struct device *dev, } static ssize_t tsl2x7x_gain_available_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev)); @@ -950,13 +957,15 @@ static ssize_t tsl2x7x_gain_available_show(struct device *dev, } static ssize_t tsl2x7x_prox_gain_available_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { return snprintf(buf, PAGE_SIZE, "%s\n", "1 2 4 8"); } static ssize_t tsl2x7x_als_time_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev)); int y, z; @@ -970,7 +979,8 @@ static ssize_t tsl2x7x_als_time_show(struct device *dev, } static ssize_t tsl2x7x_als_time_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tsl2X7X_chip *chip = iio_priv(indio_dev); @@ -986,7 +996,7 @@ static ssize_t tsl2x7x_als_time_store(struct device *dev, TSL2X7X_MAX_TIMER_CNT - (u8)result.fract; dev_info(&chip->client->dev, "%s: als time = %d", - __func__, chip->tsl2x7x_settings.als_time); + __func__, chip->tsl2x7x_settings.als_time); tsl2x7x_invoke_change(indio_dev); @@ -997,7 +1007,8 @@ static IIO_CONST_ATTR(in_illuminance0_integration_time_available, ".00272 - .696"); static ssize_t tsl2x7x_als_cal_target_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev)); @@ -1006,7 +1017,8 @@ static ssize_t tsl2x7x_als_cal_target_show(struct device *dev, } static ssize_t tsl2x7x_als_cal_target_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tsl2X7X_chip *chip = iio_priv(indio_dev); @@ -1025,7 +1037,8 @@ static ssize_t tsl2x7x_als_cal_target_store(struct device *dev, /* persistence settings */ static ssize_t tsl2x7x_als_persistence_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev)); int y, z, filter_delay; @@ -1041,7 +1054,8 @@ static ssize_t tsl2x7x_als_persistence_show(struct device *dev, } static ssize_t tsl2x7x_als_persistence_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tsl2X7X_chip *chip = iio_priv(indio_dev); @@ -1063,7 +1077,7 @@ static ssize_t tsl2x7x_als_persistence_store(struct device *dev, chip->tsl2x7x_settings.persistence |= (filter_delay & 0x0F); dev_info(&chip->client->dev, "%s: als persistence = %d", - __func__, filter_delay); + __func__, filter_delay); tsl2x7x_invoke_change(indio_dev); @@ -1071,7 +1085,8 @@ static ssize_t tsl2x7x_als_persistence_store(struct device *dev, } static ssize_t tsl2x7x_prox_persistence_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev)); int y, z, filter_delay; @@ -1087,7 +1102,8 @@ static ssize_t tsl2x7x_prox_persistence_show(struct device *dev, } static ssize_t tsl2x7x_prox_persistence_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tsl2X7X_chip *chip = iio_priv(indio_dev); @@ -1109,7 +1125,7 @@ static ssize_t tsl2x7x_prox_persistence_store(struct device *dev, chip->tsl2x7x_settings.persistence |= ((filter_delay << 4) & 0xF0); dev_info(&chip->client->dev, "%s: prox persistence = %d", - __func__, filter_delay); + __func__, filter_delay); tsl2x7x_invoke_change(indio_dev); @@ -1117,7 +1133,8 @@ static ssize_t tsl2x7x_prox_persistence_store(struct device *dev, } static ssize_t tsl2x7x_do_calibrate(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); bool value; @@ -1134,7 +1151,8 @@ static ssize_t tsl2x7x_do_calibrate(struct device *dev, } static ssize_t tsl2x7x_luxtable_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev)); int i = 0; @@ -1159,7 +1177,8 @@ static ssize_t tsl2x7x_luxtable_show(struct device *dev, } static ssize_t tsl2x7x_luxtable_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tsl2X7X_chip *chip = iio_priv(indio_dev); @@ -1175,7 +1194,7 @@ static ssize_t tsl2x7x_luxtable_store(struct device *dev, */ n = value[0]; if ((n % 3) || n < 6 || - n > ((ARRAY_SIZE(chip->tsl2x7x_device_lux) - 1) * 3)) { + n > ((ARRAY_SIZE(chip->tsl2x7x_device_lux) - 1) * 3)) { dev_info(dev, "LUX TABLE INPUT ERROR 1 Value[0]=%d\n", n); return -EINVAL; } @@ -1198,7 +1217,8 @@ static ssize_t tsl2x7x_luxtable_store(struct device *dev, } static ssize_t tsl2x7x_do_prox_calibrate(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); bool value; @@ -1391,10 +1411,10 @@ static int tsl2x7x_read_raw(struct iio_dev *indio_dev, } static int tsl2x7x_write_raw(struct iio_dev *indio_dev, - struct iio_chan_spec const *chan, - int val, - int val2, - long mask) + struct iio_chan_spec const *chan, + int val, + int val2, + long mask) { struct tsl2X7X_chip *chip = iio_priv(indio_dev); @@ -1529,7 +1549,7 @@ static irqreturn_t tsl2x7x_event_handler(int irq, void *private) u8 value; value = i2c_smbus_read_byte_data(chip->client, - TSL2X7X_CMD_REG | TSL2X7X_STATUS); + TSL2X7X_CMD_REG | TSL2X7X_STATUS); /* What type of interrupt do we need to process */ if (value & TSL2X7X_STA_PRX_INTR) { @@ -1545,16 +1565,16 @@ static irqreturn_t tsl2x7x_event_handler(int irq, void *private) if (value & TSL2X7X_STA_ALS_INTR) { tsl2x7x_get_lux(indio_dev); /* freshen data for ABI */ iio_push_event(indio_dev, - IIO_UNMOD_EVENT_CODE(IIO_LIGHT, - 0, - IIO_EV_TYPE_THRESH, - IIO_EV_DIR_EITHER), - timestamp); + IIO_UNMOD_EVENT_CODE(IIO_LIGHT, + 0, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_EITHER), + timestamp); } /* Clear interrupt now that we have handled it. */ ret = i2c_smbus_write_byte(chip->client, - TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN | - TSL2X7X_CMD_PROXALS_INT_CLR); + TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN | + TSL2X7X_CMD_PROXALS_INT_CLR); if (ret < 0) dev_err(&chip->client->dev, "Failed to clear irq from event handler. err = %d\n", @@ -1857,7 +1877,7 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = { }; static int tsl2x7x_probe(struct i2c_client *clientp, - const struct i2c_device_id *id) + const struct i2c_device_id *id) { int ret; unsigned char device_id; @@ -1873,14 +1893,14 @@ static int tsl2x7x_probe(struct i2c_client *clientp, i2c_set_clientdata(clientp, indio_dev); ret = tsl2x7x_i2c_read(chip->client, - TSL2X7X_CHIPID, &device_id); + TSL2X7X_CHIPID, &device_id); if (ret < 0) return ret; if ((!tsl2x7x_device_id(&device_id, id->driver_data)) || - (tsl2x7x_device_id(&device_id, id->driver_data) == -EINVAL)) { + (tsl2x7x_device_id(&device_id, id->driver_data) == -EINVAL)) { dev_info(&chip->client->dev, - "%s: i2c device found does not match expected id\n", + "%s: i2c device found does not match expected id\n", __func__); return -EINVAL; } -- cgit v0.10.2 From 2cbc8b34ef9fd081a4ae90460b9e26756ddebfe4 Mon Sep 17 00:00:00 2001 From: Eva Rachel Retuya Date: Sat, 12 Mar 2016 16:19:21 +0800 Subject: staging: iio: tsl2x7x_core: use preferred comment style Adjust block comments by adding the necessary trailing */ on a separate line. Checkpatch found this issue. Signed-off-by: Eva Rachel Retuya Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c index 4948791..de069be 100644 --- a/drivers/staging/iio/light/tsl2x7x_core.c +++ b/drivers/staging/iio/light/tsl2x7x_core.c @@ -187,9 +187,11 @@ struct tsl2X7X_chip { const struct tsl2x7x_chip_info *chip_info; const struct iio_info *info; s64 event_timestamp; - /* This structure is intentionally large to accommodate - * updates via sysfs. */ - /* Sized to 9 = max 8 segments + 1 termination segment */ + /* + * This structure is intentionally large to accommodate + * updates via sysfs. + * Sized to 9 = max 8 segments + 1 termination segment + */ struct tsl2x7x_lux tsl2x7x_device_lux[TSL2X7X_MAX_LUX_TABLE_SIZE]; }; @@ -695,8 +697,10 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev) chip->als_saturation = als_count * 922; /* 90% of full scale */ chip->als_time_scale = (als_time + 25) / 50; - /* TSL2X7X Specific power-on / adc enable sequence - * Power on the device 1st. */ + /* + * TSL2X7X Specific power-on / adc enable sequence + * Power on the device 1st. + */ utmp = TSL2X7X_CNTL_PWR_ON; ret = i2c_smbus_write_byte_data(chip->client, TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp); @@ -706,8 +710,10 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev) return ret; } - /* Use the following shadow copy for our delay before enabling ADC. - * Write all the registers. */ + /* + * Use the following shadow copy for our delay before enabling ADC. + * Write all the registers. + */ for (i = 0, dev_reg = chip->tsl2x7x_config; i < TSL2X7X_MAX_CONFIG_REG; i++) { ret = i2c_smbus_write_byte_data(chip->client, @@ -722,8 +728,10 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev) mdelay(3); /* Power-on settling time */ - /* NOW enable the ADC - * initialize the desired mode of operation */ + /* + * NOW enable the ADC + * initialize the desired mode of operation + */ utmp = TSL2X7X_CNTL_PWR_ON | TSL2X7X_CNTL_ADC_ENBL | TSL2X7X_CNTL_PROX_DET_ENBL; @@ -1164,8 +1172,10 @@ static ssize_t tsl2x7x_luxtable_show(struct device *dev, chip->tsl2x7x_device_lux[i].ch0, chip->tsl2x7x_device_lux[i].ch1); if (chip->tsl2x7x_device_lux[i].ratio == 0) { - /* We just printed the first "0" entry. - * Now get rid of the extra "," and break. */ + /* + * We just printed the first "0" entry. + * Now get rid of the extra "," and break. + */ offset--; break; } @@ -1912,8 +1922,10 @@ static int tsl2x7x_probe(struct i2c_client *clientp, return ret; } - /* ALS and PROX functions can be invoked via user space poll - * or H/W interrupt. If busy return last sample. */ + /* + * ALS and PROX functions can be invoked via user space poll + * or H/W interrupt. If busy return last sample. + */ mutex_init(&chip->als_mutex); mutex_init(&chip->prox_mutex); -- cgit v0.10.2 From 54a0cd3e5757e6cbec63911f234190287ebeca29 Mon Sep 17 00:00:00 2001 From: Eva Rachel Retuya Date: Sat, 12 Mar 2016 16:19:22 +0800 Subject: staging: iio: tsl2x7x_core: remove space after a cast Delete unneeded space after a cast as suggested by checkpatch. CHECK: No space is necessary after a cast. Signed-off-by: Eva Rachel Retuya Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c index de069be..6291a71 100644 --- a/drivers/staging/iio/light/tsl2x7x_core.c +++ b/drivers/staging/iio/light/tsl2x7x_core.c @@ -413,7 +413,7 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev) /* calculate ratio */ ratio = (ch1 << 15) / ch0; /* convert to unscaled lux using the pointer to the table */ - p = (struct tsl2x7x_lux *) chip->tsl2x7x_device_lux; + p = (struct tsl2x7x_lux *)chip->tsl2x7x_device_lux; while (p->ratio != 0 && p->ratio < ratio) p++; @@ -624,7 +624,7 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev) dev_info(&chip->client->dev, "%s als_calibrate completed\n", chip->client->name); - return (int) gain_trim_val; + return (int)gain_trim_val; } static int tsl2x7x_chip_on(struct iio_dev *indio_dev) -- cgit v0.10.2 From 95066a028b6bf9a1f4c6fcb69fab8474952bc858 Mon Sep 17 00:00:00 2001 From: Eva Rachel Retuya Date: Sat, 12 Mar 2016 16:19:23 +0800 Subject: staging: iio: tsl2x7x_core: add spaces around operators Address the checkpatch check by adding the necessary whitespace around operators: CHECK: spaces preferred around that '/' (ctx:VxV) Signed-off-by: Eva Rachel Retuya Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c index 6291a71..a72bb29 100644 --- a/drivers/staging/iio/light/tsl2x7x_core.c +++ b/drivers/staging/iio/light/tsl2x7x_core.c @@ -854,7 +854,7 @@ void tsl2x7x_prox_calculate(int *data, int length, tmp = data[i] - statP->mean; sample_sum += tmp * tmp; } - statP->stddev = int_sqrt((long)sample_sum)/length; + statP->stddev = int_sqrt((long)sample_sum) / length; } /** @@ -1192,7 +1192,7 @@ static ssize_t tsl2x7x_luxtable_store(struct device *dev, { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct tsl2X7X_chip *chip = iio_priv(indio_dev); - int value[ARRAY_SIZE(chip->tsl2x7x_device_lux)*3 + 1]; + int value[ARRAY_SIZE(chip->tsl2x7x_device_lux) * 3 + 1]; int n; get_options(buf, ARRAY_SIZE(value), value); -- cgit v0.10.2 From b026338289d65ef6fddfefcf5d1ba7932bc77c8a Mon Sep 17 00:00:00 2001 From: Eva Rachel Retuya Date: Sat, 12 Mar 2016 16:19:24 +0800 Subject: staging: iio: tsl2x7x_core: add blank line after struct declaration Add the missing blank line after struct declaration. Checkpatch found this issue. CHECK: Please use a blank line after function/struct/union/enum declarations Signed-off-by: Eva Rachel Retuya Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c index a72bb29..d553c8e 100644 --- a/drivers/staging/iio/light/tsl2x7x_core.c +++ b/drivers/staging/iio/light/tsl2x7x_core.c @@ -1646,6 +1646,7 @@ static struct attribute *tsl2X7X_ALS_event_attrs[] = { &dev_attr_in_intensity0_thresh_period.attr, NULL, }; + static struct attribute *tsl2X7X_PRX_event_attrs[] = { &dev_attr_in_proximity0_thresh_period.attr, NULL, -- cgit v0.10.2 From 5e3d1d520ffccb956a5b00c8a858416747869058 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Sun, 13 Mar 2016 23:11:30 -0700 Subject: staging: iio: meter: remove fixme comment on device remove This comment was in place in the original drafts of these drivers when the remove function did a whole lot of work: flushed queues, unregistered interrupts, uninitialized rings, unconfigured rings, and a few kfree's. The remove functions have since been reduced to unregistering and stopping the device. This is the inverse of what was done during probe and is correct. Time to remove the comment. Signed-off-by: Alison Schofield Acked-by: Daniel Baluta Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c index 6928710..b0bc99a 100644 --- a/drivers/staging/iio/meter/ade7753.c +++ b/drivers/staging/iio/meter/ade7753.c @@ -528,7 +528,6 @@ static int ade7753_probe(struct spi_device *spi) return iio_device_register(indio_dev); } -/* fixme, confirm ordering in this function */ static int ade7753_remove(struct spi_device *spi) { struct iio_dev *indio_dev = spi_get_drvdata(spi); diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c index f4188e1..fed1180 100644 --- a/drivers/staging/iio/meter/ade7754.c +++ b/drivers/staging/iio/meter/ade7754.c @@ -558,7 +558,6 @@ powerdown_on_error: return ret; } -/* fixme, confirm ordering in this function */ static int ade7754_remove(struct spi_device *spi) { struct iio_dev *indio_dev = spi_get_drvdata(spi); diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c index 684e612..c14892d 100644 --- a/drivers/staging/iio/meter/ade7759.c +++ b/drivers/staging/iio/meter/ade7759.c @@ -476,7 +476,6 @@ static int ade7759_probe(struct spi_device *spi) return iio_device_register(indio_dev); } -/* fixme, confirm ordering in this function */ static int ade7759_remove(struct spi_device *spi) { struct iio_dev *indio_dev = spi_get_drvdata(spi); -- cgit v0.10.2 From 7b58e2402f965c97c191570e187fa107230d09b4 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Sun, 13 Mar 2016 23:13:49 -0700 Subject: staging: iio: ad5933: use dev_get_platdata() Use dev_get_platdata() for retrieving the platform data instead of accessing dev->platform_data directly. Signed-off-by: Alison Schofield Acked-by: Daniel Baluta Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index d1218d8..4285874 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -699,7 +699,7 @@ static int ad5933_probe(struct i2c_client *client, const struct i2c_device_id *id) { int ret, voltage_uv = 0; - struct ad5933_platform_data *pdata = client->dev.platform_data; + struct ad5933_platform_data *pdata = dev_get_platdata(&client->dev); struct ad5933_state *st; struct iio_dev *indio_dev; -- cgit v0.10.2 From e279ee89d349af16fc7b77f4d715cd2826ac8249 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Sun, 13 Mar 2016 23:15:51 -0700 Subject: staging: iio: io-trig-bfin-timer: use dev_get_platdata() Use dev_get_platdata() for retrieving the platform data instead of accessing dev->platform_data directly. Move the assignment out of the declaration (avoid lines over 80 char and put it close to usage). Signed-off-by: Alison Schofield Acked-by: Daniel Baluta Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c index 035dd45..8667334 100644 --- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c +++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c @@ -178,7 +178,7 @@ static const struct iio_trigger_ops iio_bfin_tmr_trigger_ops = { static int iio_bfin_tmr_trigger_probe(struct platform_device *pdev) { - struct iio_bfin_timer_trigger_pdata *pdata = pdev->dev.platform_data; + struct iio_bfin_timer_trigger_pdata *pdata; struct bfin_tmr_state *st; unsigned int config; int ret; @@ -221,6 +221,7 @@ static int iio_bfin_tmr_trigger_probe(struct platform_device *pdev) config = PWM_OUT | PERIOD_CNT | IRQ_ENA; + pdata = dev_get_platdata(&pdev->dev); if (pdata && pdata->output_enable) { unsigned long long val; -- cgit v0.10.2 From f5d82ad9bca2df8204c9b47748cbf1c5f3eb691d Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Wed, 16 Mar 2016 23:59:19 -0700 Subject: staging: iio: ad5933: move contents of header file to source file The contents of the header file are used only by this single source file. Move content into .c and remove .h. Signed-off-by: Alison Schofield Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index 4285874..f2c305c 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -24,8 +24,6 @@ #include #include -#include "ad5933.h" - /* AD5933/AD5934 Registers */ #define AD5933_REG_CONTROL_HB 0x80 /* R/W, 2 bytes */ #define AD5933_REG_CONTROL_LB 0x81 /* R/W, 2 bytes */ @@ -86,6 +84,18 @@ #define AD5933_POLL_TIME_ms 10 #define AD5933_INIT_EXCITATION_TIME_ms 100 +/** + * struct ad5933_platform_data - platform specific data + * @ext_clk_Hz: the external clock frequency in Hz, if not set + * the driver uses the internal clock (16.776 MHz) + * @vref_mv: the external reference voltage in millivolt + */ + +struct ad5933_platform_data { + unsigned long ext_clk_Hz; + unsigned short vref_mv; +}; + struct ad5933_state { struct i2c_client *client; struct regulator *reg; diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.h b/drivers/staging/iio/impedance-analyzer/ad5933.h deleted file mode 100644 index b140e42..0000000 --- a/drivers/staging/iio/impedance-analyzer/ad5933.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * AD5933 AD5934 Impedance Converter, Network Analyzer - * - * Copyright 2011 Analog Devices Inc. - * - * Licensed under the GPL-2. - */ - -#ifndef IIO_ADC_AD5933_H_ -#define IIO_ADC_AD5933_H_ - -/* - * TODO: struct ad5933_platform_data needs to go into include/linux/iio - */ - -/** - * struct ad5933_platform_data - platform specific data - * @ext_clk_Hz: the external clock frequency in Hz, if not set - * the driver uses the internal clock (16.776 MHz) - * @vref_mv: the external reference voltage in millivolt - */ - -struct ad5933_platform_data { - unsigned long ext_clk_Hz; - unsigned short vref_mv; -}; - -#endif /* IIO_ADC_AD5933_H_ */ -- cgit v0.10.2 From 5359ada246eb651679b80cfaa036c1d1ebcd0896 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Thu, 17 Mar 2016 00:00:20 -0700 Subject: staging: iio: ad5933: remove unused #includes Remove #includes no longer used in this module. Signed-off-by: Alison Schofield Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index f2c305c..af3a190 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -12,12 +12,10 @@ #include #include #include -#include #include #include #include #include -#include #include #include -- cgit v0.10.2 From 0eea4ce3f4be3253206ca7bb84a458cea0c41e01 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 13:11:15 +0530 Subject: Staging: iio: ade7758_core: Fix open parentheses alignment issues. Fix open parentheses alignment issues. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c index 40f5afa..d6e35c7 100644 --- a/drivers/staging/iio/meter/ade7758_core.c +++ b/drivers/staging/iio/meter/ade7758_core.c @@ -24,9 +24,7 @@ #include "meter.h" #include "ade7758.h" -int ade7758_spi_write_reg_8(struct device *dev, - u8 reg_address, - u8 val) +int ade7758_spi_write_reg_8(struct device *dev, u8 reg_address, u8 val) { int ret; struct iio_dev *indio_dev = dev_to_iio_dev(dev); @@ -42,9 +40,8 @@ int ade7758_spi_write_reg_8(struct device *dev, return ret; } -static int ade7758_spi_write_reg_16(struct device *dev, - u8 reg_address, - u16 value) +static int ade7758_spi_write_reg_16(struct device *dev, u8 reg_address, + u16 value) { int ret; struct iio_dev *indio_dev = dev_to_iio_dev(dev); @@ -68,9 +65,8 @@ static int ade7758_spi_write_reg_16(struct device *dev, return ret; } -static int ade7758_spi_write_reg_24(struct device *dev, - u8 reg_address, - u32 value) +static int ade7758_spi_write_reg_24(struct device *dev, u8 reg_address, + u32 value) { int ret; struct iio_dev *indio_dev = dev_to_iio_dev(dev); @@ -95,9 +91,7 @@ static int ade7758_spi_write_reg_24(struct device *dev, return ret; } -int ade7758_spi_read_reg_8(struct device *dev, - u8 reg_address, - u8 *val) +int ade7758_spi_read_reg_8(struct device *dev, u8 reg_address, u8 *val) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct ade7758_state *st = iio_priv(indio_dev); @@ -124,7 +118,7 @@ int ade7758_spi_read_reg_8(struct device *dev, ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers)); if (ret) { dev_err(&st->us->dev, "problem when reading 8 bit register 0x%02X", - reg_address); + reg_address); goto error_ret; } *val = st->rx[0]; @@ -134,9 +128,8 @@ error_ret: return ret; } -static int ade7758_spi_read_reg_16(struct device *dev, - u8 reg_address, - u16 *val) +static int ade7758_spi_read_reg_16(struct device *dev, u8 reg_address, + u16 *val) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct ade7758_state *st = iio_priv(indio_dev); @@ -165,7 +158,7 @@ static int ade7758_spi_read_reg_16(struct device *dev, ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers)); if (ret) { dev_err(&st->us->dev, "problem when reading 16 bit register 0x%02X", - reg_address); + reg_address); goto error_ret; } @@ -176,9 +169,8 @@ error_ret: return ret; } -static int ade7758_spi_read_reg_24(struct device *dev, - u8 reg_address, - u32 *val) +static int ade7758_spi_read_reg_24(struct device *dev, u8 reg_address, + u32 *val) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct ade7758_state *st = iio_priv(indio_dev); @@ -207,7 +199,7 @@ static int ade7758_spi_read_reg_24(struct device *dev, ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers)); if (ret) { dev_err(&st->us->dev, "problem when reading 24 bit register 0x%02X", - reg_address); + reg_address); goto error_ret; } *val = (st->rx[0] << 16) | (st->rx[1] << 8) | st->rx[2]; @@ -218,8 +210,7 @@ error_ret: } static ssize_t ade7758_read_8bit(struct device *dev, - struct device_attribute *attr, - char *buf) + struct device_attribute *attr, char *buf) { int ret; u8 val = 0; @@ -233,8 +224,7 @@ static ssize_t ade7758_read_8bit(struct device *dev, } static ssize_t ade7758_read_16bit(struct device *dev, - struct device_attribute *attr, - char *buf) + struct device_attribute *attr, char *buf) { int ret; u16 val = 0; @@ -248,8 +238,7 @@ static ssize_t ade7758_read_16bit(struct device *dev, } static ssize_t ade7758_read_24bit(struct device *dev, - struct device_attribute *attr, - char *buf) + struct device_attribute *attr, char *buf) { int ret; u32 val = 0; @@ -263,9 +252,8 @@ static ssize_t ade7758_read_24bit(struct device *dev, } static ssize_t ade7758_write_8bit(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; @@ -281,9 +269,8 @@ error_ret: } static ssize_t ade7758_write_16bit(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); int ret; @@ -479,16 +466,13 @@ err_ret: } static ssize_t ade7758_read_frequency(struct device *dev, - struct device_attribute *attr, - char *buf) + struct device_attribute *attr, char *buf) { int ret; u8 t; int sps; - ret = ade7758_spi_read_reg_8(dev, - ADE7758_WAVMODE, - &t); + ret = ade7758_spi_read_reg_8(dev, ADE7758_WAVMODE, &t); if (ret) return ret; @@ -499,9 +483,8 @@ static ssize_t ade7758_read_frequency(struct device *dev, } static ssize_t ade7758_write_frequency(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t len) + struct device_attribute *attr, + const char *buf, size_t len) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); u16 val; @@ -532,18 +515,14 @@ static ssize_t ade7758_write_frequency(struct device *dev, goto out; } - ret = ade7758_spi_read_reg_8(dev, - ADE7758_WAVMODE, - ®); + ret = ade7758_spi_read_reg_8(dev, ADE7758_WAVMODE, ®); if (ret) goto out; reg &= ~(5 << 3); reg |= t << 5; - ret = ade7758_spi_write_reg_8(dev, - ADE7758_WAVMODE, - reg); + ret = ade7758_spi_write_reg_8(dev, ADE7758_WAVMODE, reg); out: mutex_unlock(&indio_dev->mlock); -- cgit v0.10.2 From 929d2691f202c1904db5a8a471636e030eaef570 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 13:13:46 +0530 Subject: Staging: iio: ade7758_core: Remove unnecessary blank line. Remove unnecessary blank line. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c index d6e35c7..3102965 100644 --- a/drivers/staging/iio/meter/ade7758_core.c +++ b/drivers/staging/iio/meter/ade7758_core.c @@ -149,7 +149,6 @@ static int ade7758_spi_read_reg_16(struct device *dev, u8 reg_address, }, }; - mutex_lock(&st->buf_lock); st->tx[0] = ADE7758_READ_REG(reg_address); st->tx[1] = 0; -- cgit v0.10.2 From 93636775b9b68f239cf6a100f9148c0936dbd02e Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 13:15:13 +0530 Subject: Staging: iio: ade7758: Use a blank line after function/struct declarations. Use a blank line after function/struct declarations. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/meter/ade7758.h b/drivers/staging/iio/meter/ade7758.h index f6739e2..ff7c764 100644 --- a/drivers/staging/iio/meter/ade7758.h +++ b/drivers/staging/iio/meter/ade7758.h @@ -129,6 +129,7 @@ struct ade7758_state { unsigned char tx_buf[8]; }; + #ifdef CONFIG_IIO_BUFFER /* At the moment triggers are only used for ring buffer * filling. This may change! @@ -157,6 +158,7 @@ int ade7758_spi_read_reg_8(struct device *dev, static inline void ade7758_remove_trigger(struct iio_dev *indio_dev) { } + static inline int ade7758_probe_trigger(struct iio_dev *indio_dev) { return 0; @@ -166,16 +168,20 @@ static int ade7758_configure_ring(struct iio_dev *indio_dev) { return 0; } + static inline void ade7758_unconfigure_ring(struct iio_dev *indio_dev) { } + static inline int ade7758_initialize_ring(struct iio_ring_buffer *ring) { return 0; } + static inline void ade7758_uninitialize_ring(struct iio_dev *indio_dev) { } + #endif /* CONFIG_IIO_BUFFER */ #endif -- cgit v0.10.2 From 04e1f7b9b0b24b0d2fb669ea8fdce429478da72f Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 13:17:01 +0530 Subject: Staging: iio: ade7758: Fix open parentheses alignment issues. Fix open parentheses alignment issues. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/meter/ade7758.h b/drivers/staging/iio/meter/ade7758.h index ff7c764..1d04ec9 100644 --- a/drivers/staging/iio/meter/ade7758.h +++ b/drivers/staging/iio/meter/ade7758.h @@ -139,19 +139,15 @@ void ade7758_remove_trigger(struct iio_dev *indio_dev); int ade7758_probe_trigger(struct iio_dev *indio_dev); ssize_t ade7758_read_data_from_ring(struct device *dev, - struct device_attribute *attr, - char *buf); - + struct device_attribute *attr, char *buf); int ade7758_configure_ring(struct iio_dev *indio_dev); void ade7758_unconfigure_ring(struct iio_dev *indio_dev); int ade7758_set_irq(struct device *dev, bool enable); -int ade7758_spi_write_reg_8(struct device *dev, - u8 reg_address, u8 val); -int ade7758_spi_read_reg_8(struct device *dev, - u8 reg_address, u8 *val); +int ade7758_spi_write_reg_8(struct device *dev, u8 reg_address, u8 val); +int ade7758_spi_read_reg_8(struct device *dev, u8 reg_address, u8 *val); #else /* CONFIG_IIO_BUFFER */ -- cgit v0.10.2 From 7df7ee9be9801a7d0c73e9a4ef3e4912aef8b083 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 17:19:44 +0530 Subject: Staging: iio: ad5933: Remove unnecessary space after cast. Remove unnecessary space after cast. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index af3a190..620b33a 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -315,10 +315,10 @@ static ssize_t ad5933_show_frequency(struct device *dev, freqreg = be32_to_cpu(dat.d32) & 0xFFFFFF; - freqreg = (u64) freqreg * (u64) (st->mclk_hz / 4); + freqreg = (u64)freqreg * (u64)(st->mclk_hz / 4); do_div(freqreg, 1 << 27); - return sprintf(buf, "%d\n", (int) freqreg); + return sprintf(buf, "%d\n", (int)freqreg); } static ssize_t ad5933_store_frequency(struct device *dev, @@ -366,7 +366,7 @@ static ssize_t ad5933_show(struct device *dev, int ret = 0, len = 0; mutex_lock(&indio_dev->mlock); - switch ((u32) this_attr->address) { + switch ((u32)this_attr->address) { case AD5933_OUT_RANGE: len = sprintf(buf, "%u\n", st->range_avail[(st->ctrl_hb >> 1) & 0x3]); @@ -417,7 +417,7 @@ static ssize_t ad5933_store(struct device *dev, } mutex_lock(&indio_dev->mlock); - switch ((u32) this_attr->address) { + switch ((u32)this_attr->address) { case AD5933_OUT_RANGE: for (i = 0; i < 4; i++) if (val == st->range_avail[i]) { -- cgit v0.10.2 From afb105549d4879018e45bbf77e76034237d8fc20 Mon Sep 17 00:00:00 2001 From: PrasannaKumar Muralidharan Date: Sat, 12 Mar 2016 14:03:09 +0530 Subject: Staging: most: Remove atomic_counter_t typedef Remove atomic_counter_t typedef, use int instead. Signed-off-by: PrasannaKumar Muralidharan Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.h b/drivers/staging/most/hdm-dim2/dim2_hal.h index fc73d4f..9f8e880 100644 --- a/drivers/staging/most/hdm-dim2/dim2_hal.h +++ b/drivers/staging/most/hdm-dim2/dim2_hal.h @@ -42,14 +42,12 @@ struct dim_ch_state_t { u16 done_buffers; /* Number of completed buffers */ }; -typedef int atomic_counter_t; - struct int_ch_state { /* changed only in interrupt context */ - volatile atomic_counter_t request_counter; + volatile int request_counter; /* changed only in task context */ - volatile atomic_counter_t service_counter; + volatile int service_counter; u8 idx1; u8 idx2; -- cgit v0.10.2 From 514dd88df707a1094e937c20d5a0b1ec619e1f96 Mon Sep 17 00:00:00 2001 From: Amitoj Kaur Chawla Date: Sat, 12 Mar 2016 15:01:04 +0530 Subject: staging: slicoss: Add error check for pci_map_single Currently, DMA mapping failure is not detected, causing the hardware to attempt a DMA from an invalid address. This patch adds the corresponding error check for pci_map_single i.e. pci_dma_mapping_error. Problem found using the following Coccinelle semantic patch: // @@ expression e1; identifier x; @@ x= ( *dma_map_single(...) | *dma_map_page(...) ) ... when != dma_mapping_error(e1,x) @@ expression e1; identifier x; @@ x = ( *pci_map_single(...) | *pci_map_page(...) ) ... when != pci_dma_mapping_error(e1,x) // Signed-off-by: Amitoj Kaur Chawla Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c index 6d50fc4..fa61e8e 100644 --- a/drivers/staging/slicoss/slicoss.c +++ b/drivers/staging/slicoss/slicoss.c @@ -1855,6 +1855,11 @@ static void slic_xmit_build_request(struct adapter *adapter, ihcmd->u.slic_buffers.totlen = skb->len; phys_addr = pci_map_single(adapter->pcidev, skb->data, skb->len, PCI_DMA_TODEVICE); + if (pci_dma_mapping_error(adapter->pcidev, phys_addr)) { + kfree_skb(skb); + dev_err(&adapter->pcidev->dev, "DMA mapping error\n"); + return; + } ihcmd->u.slic_buffers.bufs[0].paddrl = SLIC_GET_ADDR_LOW(phys_addr); ihcmd->u.slic_buffers.bufs[0].paddrh = SLIC_GET_ADDR_HIGH(phys_addr); ihcmd->u.slic_buffers.bufs[0].length = skb->len; -- cgit v0.10.2 From c2598d468f3cccb1266a8ffe1a0d7268ff2d8eb4 Mon Sep 17 00:00:00 2001 From: Laura Garcia Liebana Date: Sat, 12 Mar 2016 16:03:50 +0100 Subject: staging: octeon: Use type int instead of int32_t Prefer the use of type int instead of int32_t. Checkpatch detected these issues. Signed-off-by: Laura Garcia Liebana Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c index ffe9bd7..93f6558 100644 --- a/drivers/staging/octeon/ethernet-tx.c +++ b/drivers/staging/octeon/ethernet-tx.c @@ -58,9 +58,9 @@ static DECLARE_TASKLET(cvm_oct_tx_cleanup_tasklet, cvm_oct_tx_do_cleanup, 0); /* Maximum number of SKBs to try to free per xmit packet. */ #define MAX_SKB_TO_FREE (MAX_OUT_QUEUE_DEPTH * 2) -static inline int32_t cvm_oct_adjust_skb_to_free(int32_t skb_to_free, int fau) +static inline int cvm_oct_adjust_skb_to_free(int skb_to_free, int fau) { - int32_t undo; + int undo; undo = skb_to_free > 0 ? MAX_SKB_TO_FREE : skb_to_free + MAX_SKB_TO_FREE; @@ -83,7 +83,7 @@ static void cvm_oct_kick_tx_poll_watchdog(void) static void cvm_oct_free_tx_skbs(struct net_device *dev) { - int32_t skb_to_free; + int skb_to_free; int qos, queues_per_port; int total_freed = 0; int total_remaining = 0; @@ -148,8 +148,8 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev) enum {QUEUE_CORE, QUEUE_HW, QUEUE_DROP} queue_type; struct octeon_ethernet *priv = netdev_priv(dev); struct sk_buff *to_free_list; - int32_t skb_to_free; - int32_t buffers_to_free; + int skb_to_free; + int buffers_to_free; u32 total_to_clean; unsigned long flags; #if REUSE_SKBUFFS_WITHOUT_FREE -- cgit v0.10.2 From ac05a587c8a7b6ae8c4acef5a6db7e6ccfbcfd3e Mon Sep 17 00:00:00 2001 From: Laura Garcia Liebana Date: Sat, 12 Mar 2016 16:35:30 +0100 Subject: staging: octeon: Fix alignment with open parenthesis Alignment should match open parenthesis. Checkpatch detected these issues. Signed-off-by: Laura Garcia Liebana Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index b6993b0..a10fe3a 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -172,12 +172,13 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) if (OCTEON_IS_MODEL(OCTEON_CN68XX)) { old_group_mask = cvmx_read_csr(CVMX_SSO_PPX_GRP_MSK(coreid)); cvmx_write_csr(CVMX_SSO_PPX_GRP_MSK(coreid), - 1ull << pow_receive_group); + 1ull << pow_receive_group); cvmx_read_csr(CVMX_SSO_PPX_GRP_MSK(coreid)); /* Flush */ } else { old_group_mask = cvmx_read_csr(CVMX_POW_PP_GRP_MSKX(coreid)); cvmx_write_csr(CVMX_POW_PP_GRP_MSKX(coreid), - (old_group_mask & ~0xFFFFull) | 1 << pow_receive_group); + (old_group_mask & ~0xFFFFull) | + 1 << pow_receive_group); } if (USE_ASYNC_IOBDMA) { @@ -374,7 +375,7 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) * doesn't exist. */ printk_ratelimited("Port %d not controlled by Linux, packet dropped\n", - port); + port); dev_kfree_skb_irq(skb); } /* diff --git a/drivers/staging/octeon/ethernet-rx.h b/drivers/staging/octeon/ethernet-rx.h index a5973fd..315a63d 100644 --- a/drivers/staging/octeon/ethernet-rx.h +++ b/drivers/staging/octeon/ethernet-rx.h @@ -30,7 +30,7 @@ static inline void cvm_oct_rx_refill_pool(int fill_threshold) number_to_free); if (num_freed != number_to_free) { cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, - number_to_free - num_freed); + number_to_free - num_freed); } } } diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c index 93f6558..6b4c208 100644 --- a/drivers/staging/octeon/ethernet-tx.c +++ b/drivers/staging/octeon/ethernet-tx.c @@ -220,7 +220,8 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev) priv->fau + qos * 4, MAX_SKB_TO_FREE); } skb_to_free = cvm_oct_adjust_skb_to_free(skb_to_free, - priv->fau + qos * 4); + priv->fau + + qos * 4); spin_lock_irqsave(&priv->tx_free_list[qos].lock, flags); goto skip_xmit; } @@ -402,7 +403,7 @@ dont_put_skbuff_in_hw: } skb_to_free = cvm_oct_adjust_skb_to_free(skb_to_free, - priv->fau + qos * 4); + priv->fau + qos * 4); /* * If we're sending faster than the receive can free them then diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c index 271e1b8d..e9cd5f2 100644 --- a/drivers/staging/octeon/ethernet.c +++ b/drivers/staging/octeon/ethernet.c @@ -635,7 +635,7 @@ static struct device_node *cvm_oct_of_get_child( } static struct device_node *cvm_oct_node_for_port(struct device_node *pip, - int interface, int port) + int interface, int port) { struct device_node *ni, *np; @@ -815,7 +815,7 @@ static int cvm_oct_probe(struct platform_device *pdev) free_netdev(dev); } else if (register_netdev(dev) < 0) { pr_err("Failed to register ethernet device for interface %d, port %d\n", - interface, priv->port); + interface, priv->port); free_netdev(dev); } else { cvm_oct_device[priv->port] = dev; -- cgit v0.10.2 From 9fc27699bd16707ae95218ba553bde144f5afbed Mon Sep 17 00:00:00 2001 From: Laura Garcia Liebana Date: Sat, 12 Mar 2016 16:20:04 +0100 Subject: staging: nvec: Remove space after a cast No space is required after a cast. Checkpatch detected this issue. Signed-off-by: Laura Garcia Liebana Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c index 9fda136..dc38ca8 100644 --- a/drivers/staging/nvec/nvec.c +++ b/drivers/staging/nvec/nvec.c @@ -659,10 +659,11 @@ static irqreturn_t nvec_interrupt(int irq, void *dev) } else if (nvec->tx && nvec->tx->pos < nvec->tx->size) { to_send = nvec->tx->data[nvec->tx->pos++]; } else { - dev_err(nvec->dev, "tx buffer underflow on %p (%u > %u)\n", + dev_err(nvec->dev, + "tx buffer underflow on %p (%u > %u)\n", nvec->tx, - (uint) (nvec->tx ? nvec->tx->pos : 0), - (uint) (nvec->tx ? nvec->tx->size : 0)); + (uint)(nvec->tx ? nvec->tx->pos : 0), + (uint)(nvec->tx ? nvec->tx->size : 0)); nvec->state = 0; } break; -- cgit v0.10.2 From f05f33fae3c720bd555ceb15b46beb4c642b663a Mon Sep 17 00:00:00 2001 From: Laura Garcia Liebana Date: Sat, 12 Mar 2016 16:19:11 +0100 Subject: staging: nvec: Fix comparison to NULL Replace the use of comparison to NULL, use ! instead. Checkpatch detected these issues. Signed-off-by: Laura Garcia Liebana Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c index dc38ca8..c1feccf 100644 --- a/drivers/staging/nvec/nvec.c +++ b/drivers/staging/nvec/nvec.c @@ -264,7 +264,7 @@ int nvec_write_async(struct nvec_chip *nvec, const unsigned char *data, msg = nvec_msg_alloc(nvec, NVEC_MSG_TX); - if (msg == NULL) + if (!msg) return -ENOMEM; msg->data[0] = size; @@ -620,7 +620,7 @@ static irqreturn_t nvec_interrupt(int irq, void *dev) } else { nvec->rx = nvec_msg_alloc(nvec, NVEC_MSG_RX); /* Should not happen in a normal world */ - if (unlikely(nvec->rx == NULL)) { + if (unlikely(!nvec->rx)) { nvec->state = 0; break; } -- cgit v0.10.2 From a3dac5a35cc54fa983e3de56ec010734c87315c4 Mon Sep 17 00:00:00 2001 From: Ben Marsh Date: Tue, 15 Mar 2016 19:37:54 +0100 Subject: Staging: nvec: removes a useless cast on a void pointer Remove an unnecessary cast on a void pointer in nvec_power.c Signed-off-by: Ben Marsh Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/nvec/nvec_power.c b/drivers/staging/nvec/nvec_power.c index b4a0545..fcbb0fa 100644 --- a/drivers/staging/nvec/nvec_power.c +++ b/drivers/staging/nvec/nvec_power.c @@ -90,7 +90,7 @@ static int nvec_power_notifier(struct notifier_block *nb, { struct nvec_power *power = container_of(nb, struct nvec_power, notifier); - struct bat_response *res = (struct bat_response *)data; + struct bat_response *res = data; if (event_type != NVEC_SYS) return NOTIFY_DONE; @@ -126,7 +126,7 @@ static int nvec_power_bat_notifier(struct notifier_block *nb, { struct nvec_power *power = container_of(nb, struct nvec_power, notifier); - struct bat_response *res = (struct bat_response *)data; + struct bat_response *res = data; int status_changed = 0; if (event_type != NVEC_BAT) -- cgit v0.10.2 From 6422ea03f335bf7441150555de1ab048ac82ee99 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Tue, 15 Mar 2016 18:48:08 +0900 Subject: staging: wilc1000: removes function 'init_tcp_tracking()' This patch removes function 'init_tcp_tracking()'. The function is an unnecessary return. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c index fd938fb..ca9054a 100644 --- a/drivers/staging/wilc1000/wilc_wlan.c +++ b/drivers/staging/wilc1000/wilc_wlan.c @@ -150,11 +150,6 @@ static u32 pending_base; static u32 tcp_session; static u32 pending_acks; -static inline int init_tcp_tracking(void) -{ - return 0; -} - static inline int add_tcp_session(u32 src_prt, u32 dst_prt, u32 seq) { if (tcp_session < 2 * MAX_TCP_SESSION) { @@ -1440,7 +1435,6 @@ int wilc_wlan_init(struct net_device *dev) ret = -EIO; goto _fail_; } - init_tcp_tracking(); return 1; -- cgit v0.10.2 From 9635d338303c3ed80e06c03b54ee171651438984 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Tue, 15 Mar 2016 18:48:09 +0900 Subject: staging: wilc1000: wilc_spi.c: removes debug print log This patches removes unnecessary debug print logs. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_spi.c b/drivers/staging/wilc1000/wilc_spi.c index d41b8b6..4268e2f 100644 --- a/drivers/staging/wilc1000/wilc_spi.c +++ b/drivers/staging/wilc1000/wilc_spi.c @@ -196,9 +196,6 @@ static int wilc_spi_tx(struct wilc *wilc, u8 *b, u32 len) dev_err(&spi->dev, "can't write data with the following length: %d\n", len); - dev_err(&spi->dev, - "FAILED due to NULL buffer or ZERO length check the following length: %d\n", - len); ret = -EINVAL; } -- cgit v0.10.2 From 2dfad49a8f93ceae8a74bc403664fd13f801f8fe Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Tue, 15 Mar 2016 18:48:10 +0900 Subject: staging: wilc1000: removes duplicate vif variable setting This patches removes duplicate vif variable setting. This value has already been set previously. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index bfa754b..8a10831 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -912,7 +912,6 @@ int wilc_mac_open(struct net_device *ndev) return -ENODEV; } - vif = netdev_priv(ndev); wilc = vif->wilc; priv = wiphy_priv(vif->ndev->ieee80211_ptr->wiphy); netdev_dbg(ndev, "MAC OPEN[%p]\n", ndev); -- cgit v0.10.2 From ba7504730b26b7eb49731a5ac7972c34f0513ac1 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Tue, 15 Mar 2016 18:48:11 +0900 Subject: staging: wilc1000: removes duplicate wilc variable setting This patches removes duplicate wilc variable setting. This value has already been set to wl variable previously. Replace wilc with wl as well. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 8a10831..1a5de2e 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -896,7 +896,6 @@ static int mac_init_fn(struct net_device *ndev) int wilc_mac_open(struct net_device *ndev) { struct wilc_vif *vif; - struct wilc *wilc; unsigned char mac_add[ETH_ALEN] = {0}; int ret = 0; @@ -912,7 +911,6 @@ int wilc_mac_open(struct net_device *ndev) return -ENODEV; } - wilc = vif->wilc; priv = wiphy_priv(vif->ndev->ieee80211_ptr->wiphy); netdev_dbg(ndev, "MAC OPEN[%p]\n", ndev); @@ -932,13 +930,13 @@ int wilc_mac_open(struct net_device *ndev) wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif), 0); - } else if (!wilc_wlan_get_num_conn_ifcs(wilc)) { + } else if (!wilc_wlan_get_num_conn_ifcs(wl)) { wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif), - wilc->open_ifcs); + wl->open_ifcs); } else { - if (memcmp(wilc->vif[i ^ 1]->bssid, - wilc->vif[i ^ 1]->src_addr, 6)) + if (memcmp(wl->vif[i ^ 1]->bssid, + wl->vif[i ^ 1]->src_addr, 6)) wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif), 0); -- cgit v0.10.2 From 90fd4cc5d25d5baf5540c99c100e82ce06af63f0 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Tue, 15 Mar 2016 18:48:12 +0900 Subject: staging: wilc1000: changes an ambiguous debug messages This patches changes an ambiguous debug messages. The device types are both SDIO or SPI. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 1a5de2e..e949f21 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -907,7 +907,7 @@ int wilc_mac_open(struct net_device *ndev) wl = vif->wilc; if (!wl || !wl->dev) { - netdev_err(ndev, "wilc1000: SPI device not ready\n"); + netdev_err(ndev, "device not ready\n"); return -ENODEV; } -- cgit v0.10.2 From 5c6021da1c3c46f3c2727626b4a3b9c96bf688ec Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Tue, 15 Mar 2016 18:48:13 +0900 Subject: staging: wilc1000: removes goto definitions from wilc_wlan_firmware_download This patch removes goto definitions from wilc_wlan_firmware_download function. Goto '_fail_1' feature is error return. It returns error type directly without result variable replacement as well. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c index ca9054a..ea671a9 100644 --- a/drivers/staging/wilc1000/wilc_wlan.c +++ b/drivers/staging/wilc1000/wilc_wlan.c @@ -946,10 +946,8 @@ int wilc_wlan_firmware_download(struct wilc *wilc, const u8 *buffer, blksz = BIT(12); dma_buffer = kmalloc(blksz, GFP_KERNEL); - if (!dma_buffer) { - ret = -EIO; - goto _fail_1; - } + if (!dma_buffer) + return -EIO; offset = 0; do { @@ -987,8 +985,6 @@ _fail_: kfree(dma_buffer); -_fail_1: - return (ret < 0) ? ret : 0; } -- cgit v0.10.2 From 88253ab8e637f210decc8d3ec910e5205cb75b34 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Tue, 15 Mar 2016 18:48:14 +0900 Subject: staging: wilc1000: removes an unnecessary if-condition This patch removes an unnecessary if-condition. Regardless of an if-condition is performed unconditionally '_end_' statement. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c index ea671a9..08937fe 100644 --- a/drivers/staging/wilc1000/wilc_wlan.c +++ b/drivers/staging/wilc1000/wilc_wlan.c @@ -895,8 +895,6 @@ static void wilc_wlan_handle_isr_ext(struct wilc *wilc, u32 int_status) DATA_INT_CLR | ENABLE_RX_VMM); ret = wilc->hif_func->hif_block_rx_ext(wilc, 0, buffer, size); - if (!ret) - goto _end_; _end_: if (ret) { offset += size; -- cgit v0.10.2 From 613eaa39d68b928c52a8d93bec4573925f009b62 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 14 Mar 2016 09:40:27 +0900 Subject: staging: wilc1000: use completion instead of struct semaphore hif_sema_wait_response This patch replaces struct semaphore hif_sema_wait_response with struct completion hif_wait_response. In case of struct hif_sema_wait_response, it better to use completion than semaphore. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 0a922c7..e73ee89 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -232,7 +232,7 @@ static struct task_struct *hif_thread_handler; static struct message_queue hif_msg_q; static struct semaphore hif_sema_thread; static struct semaphore hif_sema_driver; -static struct semaphore hif_sema_wait_response; +static struct completion hif_wait_response; static struct semaphore hif_sema_deinit; static struct timer_list periodic_rssi; @@ -430,7 +430,7 @@ static s32 handle_get_mac_address(struct wilc_vif *vif, netdev_err(vif->ndev, "Failed to get mac address\n"); result = -EFAULT; } - up(&hif_sema_wait_response); + complete(&hif_wait_response); return result; } @@ -1938,7 +1938,7 @@ static s32 Handle_GetStatistics(struct wilc_vif *vif, wilc_enable_tcp_ack_filter(false); if (pstrStatistics != &vif->wilc->dummy_statistics) - up(&hif_sema_wait_response); + complete(&hif_wait_response); return 0; } @@ -2172,7 +2172,7 @@ static void Handle_DelAllSta(struct wilc_vif *vif, ERRORHANDLER: kfree(wid.val); - up(&hif_sema_wait_response); + complete(&hif_wait_response); } static void Handle_DelStation(struct wilc_vif *vif, @@ -2485,7 +2485,7 @@ static void handle_get_tx_pwr(struct wilc_vif *vif, u8 *tx_pwr) if (ret) netdev_err(vif->ndev, "Failed to get TX PWR\n"); - up(&hif_sema_wait_response); + complete(&hif_wait_response); } static int hostIFthread(void *pvArg) @@ -3007,7 +3007,7 @@ int wilc_get_mac_address(struct wilc_vif *vif, u8 *mac_addr) return -EFAULT; } - down(&hif_sema_wait_response); + wait_for_completion(&hif_wait_response); return result; } @@ -3272,7 +3272,7 @@ int wilc_get_statistics(struct wilc_vif *vif, struct rf_info *stats) } if (stats != &vif->wilc->dummy_statistics) - down(&hif_sema_wait_response); + wait_for_completion(&hif_wait_response); return result; } @@ -3382,7 +3382,7 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler) scan_while_connected = false; - sema_init(&hif_sema_wait_response, 0); + init_completion(&hif_wait_response); hif_drv = kzalloc(sizeof(struct host_if_drv), GFP_KERNEL); if (!hif_drv) { @@ -3888,7 +3888,7 @@ int wilc_del_allstation(struct wilc_vif *vif, u8 mac_addr[][ETH_ALEN]) if (result) netdev_err(vif->ndev, "wilc_mq_send fail\n"); - down(&hif_sema_wait_response); + wait_for_completion(&hif_wait_response); return result; } @@ -4221,7 +4221,7 @@ int wilc_get_tx_power(struct wilc_vif *vif, u8 *tx_power) if (ret) netdev_err(vif->ndev, "Failed to get TX PWR\n"); - down(&hif_sema_wait_response); + wait_for_completion(&hif_wait_response); *tx_power = msg.body.tx_power.tx_pwr; return ret; -- cgit v0.10.2 From a5c3f8db438ab3627992124eae98fefcce53977f Mon Sep 17 00:00:00 2001 From: Anchal Jain Date: Sun, 13 Mar 2016 15:14:38 +0530 Subject: staging: wilc1000: else is not generally useful after a break or return Remove else after a break. Because else is generally not useful after a break or return. Signed-off-by: Anchal Jain Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c index 08937fe..30e1c03 100644 --- a/drivers/staging/wilc1000/wilc_wlan.c +++ b/drivers/staging/wilc1000/wilc_wlan.c @@ -621,13 +621,12 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *txq_count) if ((reg & 0x1) == 0) { break; - } else { - counter++; - if (counter > 200) { - counter = 0; - ret = wilc->hif_func->hif_write_reg(wilc, WILC_HOST_TX_CTRL, 0); - break; - } + } + counter++; + if (counter > 200) { + counter = 0; + ret = wilc->hif_func->hif_write_reg(wilc, WILC_HOST_TX_CTRL, 0); + break; } } while (!wilc->quit); @@ -653,9 +652,8 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *txq_count) if ((reg >> 2) & 0x1) { entries = ((reg >> 3) & 0x3f); break; - } else { - release_bus(wilc, RELEASE_ALLOW_SLEEP); } + release_bus(wilc, RELEASE_ALLOW_SLEEP); } while (--timeout); if (timeout <= 0) { ret = wilc->hif_func->hif_write_reg(wilc, WILC_HOST_VMM_CTL, 0x0); @@ -674,9 +672,8 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *txq_count) if (!ret) break; break; - } else { - break; } + break; } while (1); if (!ret) -- cgit v0.10.2 From 1b7c69e84bcea7a8054b44e6671e7b9ad758c2d8 Mon Sep 17 00:00:00 2001 From: Anchal Jain Date: Mon, 14 Mar 2016 18:06:54 +0530 Subject: staging: wilc1000: Fix lines over 80 characters Break lines so that they do not exceed 80 characters. Problem found using checkpatch. Signed-off-by: Anchal Jain Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_mon.c b/drivers/staging/wilc1000/linux_mon.c index 7d9e5de..6503316 100644 --- a/drivers/staging/wilc1000/linux_mon.c +++ b/drivers/staging/wilc1000/linux_mon.c @@ -59,9 +59,10 @@ void WILC_WFI_monitor_rx(u8 *buff, u32 size) /* Get WILC header */ memcpy(&header, (buff - HOST_HDR_OFFSET), HOST_HDR_OFFSET); - - /* The packet offset field conain info about what type of managment frame */ - /* we are dealing with and ack status */ + /* + * The packet offset field contain info about what type of management + * the frame we are dealing with and ack status + */ pkt_offset = GET_PKT_OFFSET(header); if (pkt_offset & IS_MANAGMEMENT_CALLBACK) { @@ -105,7 +106,7 @@ void WILC_WFI_monitor_rx(u8 *buff, u32 size) hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */ hdr->hdr.it_len = cpu_to_le16(sizeof(struct wilc_wfi_radiotap_hdr)); hdr->hdr.it_present = cpu_to_le32 - (1 << IEEE80211_RADIOTAP_RATE); /* | */ + (1 << IEEE80211_RADIOTAP_RATE); /* | */ hdr->rate = 5; /* txrate->bitrate / 5; */ } @@ -127,8 +128,10 @@ struct tx_complete_mon_data { static void mgmt_tx_complete(void *priv, int status) { struct tx_complete_mon_data *pv_data = priv; - - /* incase of fully hosting mode, the freeing will be done in response to the cfg packet */ + /* + * in case of fully hosting mode, the freeing will be done + * in response to the cfg packet + */ kfree(pv_data->buff); kfree(pv_data); @@ -255,7 +258,8 @@ static const struct net_device_ops wilc_wfi_netdev_ops = { * @date 12 JUL 2012 * @version 1.0 */ -struct net_device *WILC_WFI_init_mon_interface(const char *name, struct net_device *real_dev) +struct net_device *WILC_WFI_init_mon_interface(const char *name, + struct net_device *real_dev) { u32 ret = 0; struct WILC_WFI_mon_priv *priv; -- cgit v0.10.2 From e0c1496fcf6a1bbc9b827e763f58535585b249d5 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Mon, 14 Mar 2016 10:34:14 -0700 Subject: staging: wilc1000: replace semaphore sem_inactive_time with a completion Semaphore sem_inactive_time is used to signal completion of its host interface message. Since the thread locking this semaphore will have to wait, completions are the preferred mechanism and will offer a performance improvement. Signed-off-by: Alison Schofield Reviewed-by: Arnd Bergmann Tested-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index e73ee89..2f14370 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -2,6 +2,7 @@ #include #include #include +#include #include "host_interface.h" #include "coreconfigurator.h" #include "wilc_wlan.h" @@ -1979,7 +1980,7 @@ static s32 Handle_Get_InActiveTime(struct wilc_vif *vif, return -EFAULT; } - up(&hif_drv->sem_inactive_time); + complete(&hif_drv->comp_inactive_time); return result; } @@ -3220,7 +3221,7 @@ s32 wilc_get_inactive_time(struct wilc_vif *vif, const u8 *mac, if (result) netdev_err(vif->ndev, "Failed to send get host ch param\n"); - down(&hif_drv->sem_inactive_time); + wait_for_completion(&hif_drv->comp_inactive_time); *pu32InactiveTime = inactive_time; @@ -3407,7 +3408,7 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler) sema_init(&hif_drv->sem_test_key_block, 0); sema_init(&hif_drv->sem_test_disconn_block, 0); sema_init(&hif_drv->sem_get_rssi, 0); - sema_init(&hif_drv->sem_inactive_time, 0); + init_completion(&hif_drv->comp_inactive_time); if (clients_count == 0) { result = wilc_mq_create(&hif_msg_q); diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h index 01f3222..68852b3 100644 --- a/drivers/staging/wilc1000/host_interface.h +++ b/drivers/staging/wilc1000/host_interface.h @@ -278,7 +278,7 @@ struct host_if_drv { struct semaphore sem_test_key_block; struct semaphore sem_test_disconn_block; struct semaphore sem_get_rssi; - struct semaphore sem_inactive_time; + struct completion comp_inactive_time; struct timer_list scan_timer; struct timer_list connect_timer; -- cgit v0.10.2 From 7c8a3dcac82f11681e3e6ad61fb2e5802a136c24 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Mon, 14 Mar 2016 10:34:39 -0700 Subject: staging: wilc1000: replace semaphore sem_get_rssi with a completion Semaphore sem_get_rssi is used to signal completion of its host interface message. Since the thread locking this semaphore will have to wait, completions are the preferred mechanism and will offer a performance improvement. Signed-off-by: Alison Schofield Reviewed-by: Arnd Bergmann Tested-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 2f14370..697491e 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -1886,7 +1886,7 @@ static void Handle_GetRssi(struct wilc_vif *vif) result = -EFAULT; } - up(&vif->hif_drv->sem_get_rssi); + complete(&vif->hif_drv->comp_get_rssi); } static s32 Handle_GetStatistics(struct wilc_vif *vif, @@ -3244,7 +3244,7 @@ int wilc_get_rssi(struct wilc_vif *vif, s8 *rssi_level) return -EFAULT; } - down(&hif_drv->sem_get_rssi); + wait_for_completion(&hif_drv->comp_get_rssi); if (!rssi_level) { netdev_err(vif->ndev, "RSS pointer value is null\n"); @@ -3407,7 +3407,7 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler) sema_init(&hif_drv->sem_test_key_block, 0); sema_init(&hif_drv->sem_test_disconn_block, 0); - sema_init(&hif_drv->sem_get_rssi, 0); + init_completion(&hif_drv->comp_get_rssi); init_completion(&hif_drv->comp_inactive_time); if (clients_count == 0) { diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h index 68852b3..085adee 100644 --- a/drivers/staging/wilc1000/host_interface.h +++ b/drivers/staging/wilc1000/host_interface.h @@ -277,7 +277,7 @@ struct host_if_drv { struct mutex cfg_values_lock; struct semaphore sem_test_key_block; struct semaphore sem_test_disconn_block; - struct semaphore sem_get_rssi; + struct completion comp_get_rssi; struct completion comp_inactive_time; struct timer_list scan_timer; -- cgit v0.10.2 From 96adbd276e7194320f08fd7f00c4a1be2d910d11 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Mon, 14 Mar 2016 10:35:05 -0700 Subject: staging: wilc1000: replace sem_test_disconn_block with a completion Semaphore sem_test_disconn_block is used to signal completion of its host interface message. Since the thread locking this semaphore will have to wait, completions are the preferred mechanism and will offer a performance improvement. Signed-off-by: Alison Schofield Reviewed-by: Arnd Bergmann Tested-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 697491e..ed7f011 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -1857,7 +1857,7 @@ static void Handle_Disconnect(struct wilc_vif *vif) } } - up(&hif_drv->sem_test_disconn_block); + complete(&hif_drv->comp_test_disconn_block); } void wilc_resolve_disconnect_aberration(struct wilc_vif *vif) @@ -3099,7 +3099,7 @@ int wilc_disconnect(struct wilc_vif *vif, u16 reason_code) if (result) netdev_err(vif->ndev, "Failed to send message: disconnect\n"); - down(&hif_drv->sem_test_disconn_block); + wait_for_completion(&hif_drv->comp_test_disconn_block); return result; } @@ -3406,7 +3406,7 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler) } sema_init(&hif_drv->sem_test_key_block, 0); - sema_init(&hif_drv->sem_test_disconn_block, 0); + init_completion(&hif_drv->comp_test_disconn_block); init_completion(&hif_drv->comp_get_rssi); init_completion(&hif_drv->comp_inactive_time); diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h index 085adee..3ab94a7 100644 --- a/drivers/staging/wilc1000/host_interface.h +++ b/drivers/staging/wilc1000/host_interface.h @@ -276,7 +276,7 @@ struct host_if_drv { struct mutex cfg_values_lock; struct semaphore sem_test_key_block; - struct semaphore sem_test_disconn_block; + struct completion comp_test_disconn_block; struct completion comp_get_rssi; struct completion comp_inactive_time; -- cgit v0.10.2 From 702962f33ba664d3a6ce2008d076dccd93c420a2 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Mon, 14 Mar 2016 10:35:41 -0700 Subject: staging: wilc1000: replace sem_test_key_block with a completion Semaphore sem_test_key_block is used to signal completion of its host interface message. Since the thread locking this semaphore will have to wait, completions are the preferred mechanism and will offer a performance improvement. Signed-off-by: Alison Schofield Reviewed-by: Arnd Bergmann Tested-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index ed7f011..f50571f 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -1611,7 +1611,7 @@ static int Handle_Key(struct wilc_vif *vif, &wid, 1, wilc_get_vif_idx(vif)); } - up(&hif_drv->sem_test_key_block); + complete(&hif_drv->comp_test_key_block); break; case WPA_RX_GTK: @@ -1645,7 +1645,7 @@ static int Handle_Key(struct wilc_vif *vif, wilc_get_vif_idx(vif)); kfree(pu8keybuf); - up(&hif_drv->sem_test_key_block); + complete(&hif_drv->comp_test_key_block); } else if (pstrHostIFkeyAttr->action & ADDKEY) { pu8keybuf = kzalloc(RX_MIC_KEY_MSG_LEN, GFP_KERNEL); if (pu8keybuf == NULL) { @@ -1674,7 +1674,7 @@ static int Handle_Key(struct wilc_vif *vif, wilc_get_vif_idx(vif)); kfree(pu8keybuf); - up(&hif_drv->sem_test_key_block); + complete(&hif_drv->comp_test_key_block); } _WPARxGtk_end_case_: kfree(pstrHostIFkeyAttr->attr.wpa.key); @@ -1712,7 +1712,7 @@ _WPARxGtk_end_case_: strWIDList, 2, wilc_get_vif_idx(vif)); kfree(pu8keybuf); - up(&hif_drv->sem_test_key_block); + complete(&hif_drv->comp_test_key_block); } else if (pstrHostIFkeyAttr->action & ADDKEY) { pu8keybuf = kmalloc(PTK_KEY_MSG_LEN, GFP_KERNEL); if (!pu8keybuf) { @@ -1735,7 +1735,7 @@ _WPARxGtk_end_case_: &wid, 1, wilc_get_vif_idx(vif)); kfree(pu8keybuf); - up(&hif_drv->sem_test_key_block); + complete(&hif_drv->comp_test_key_block); } _WPAPtk_end_case_: @@ -2731,7 +2731,7 @@ int wilc_remove_wep_key(struct wilc_vif *vif, u8 index) result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg)); if (result) netdev_err(vif->ndev, "Request to remove WEP key\n"); - down(&hif_drv->sem_test_key_block); + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -2759,7 +2759,7 @@ int wilc_set_wep_default_keyid(struct wilc_vif *vif, u8 index) result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg)); if (result) netdev_err(vif->ndev, "Default key index\n"); - down(&hif_drv->sem_test_key_block); + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -2792,7 +2792,7 @@ int wilc_add_wep_key_bss_sta(struct wilc_vif *vif, const u8 *key, u8 len, result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg)); if (result) netdev_err(vif->ndev, "STA - WEP Key\n"); - down(&hif_drv->sem_test_key_block); + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -2828,7 +2828,7 @@ int wilc_add_wep_key_bss_ap(struct wilc_vif *vif, const u8 *key, u8 len, if (result) netdev_err(vif->ndev, "AP - WEP Key\n"); - down(&hif_drv->sem_test_key_block); + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -2884,7 +2884,7 @@ int wilc_add_ptk(struct wilc_vif *vif, const u8 *ptk, u8 ptk_key_len, if (result) netdev_err(vif->ndev, "PTK Key\n"); - down(&hif_drv->sem_test_key_block); + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -2952,7 +2952,7 @@ int wilc_add_rx_gtk(struct wilc_vif *vif, const u8 *rx_gtk, u8 gtk_key_len, if (result) netdev_err(vif->ndev, "RX GTK\n"); - down(&hif_drv->sem_test_key_block); + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -3405,7 +3405,7 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler) sema_init(&hif_sema_deinit, 1); } - sema_init(&hif_drv->sem_test_key_block, 0); + init_completion(&hif_drv->comp_test_key_block); init_completion(&hif_drv->comp_test_disconn_block); init_completion(&hif_drv->comp_get_rssi); init_completion(&hif_drv->comp_inactive_time); diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h index 3ab94a7..8d2dd0d 100644 --- a/drivers/staging/wilc1000/host_interface.h +++ b/drivers/staging/wilc1000/host_interface.h @@ -275,7 +275,7 @@ struct host_if_drv { struct cfg_param_attr cfg_values; struct mutex cfg_values_lock; - struct semaphore sem_test_key_block; + struct completion comp_test_key_block; struct completion comp_test_disconn_block; struct completion comp_get_rssi; struct completion comp_inactive_time; -- cgit v0.10.2 From d5e27e8b83b1da0cd64a6a090e273a199c2805fc Mon Sep 17 00:00:00 2001 From: "Roger H. Newell" Date: Sat, 19 Mar 2016 12:49:21 -0230 Subject: staging: wilc1000: Removed braces from single block statements This patch corrects warnings generated by checkpatch.pl by removing braces from single block statements. Signed-ff-by: Roger H. Newell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 448a5c8..70625f8 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -558,11 +558,11 @@ static void CfgConnectResult(enum conn_event enuConnDisconnEvent, if (!pstrWFIDrv->p2p_connect) wlan_channel = INVALID_CHANNEL; - if ((pstrWFIDrv->IFC_UP) && (dev == wl->vif[1]->ndev)) { + if ((pstrWFIDrv->IFC_UP) && (dev == wl->vif[1]->ndev)) pstrDisconnectNotifInfo->reason = 3; - } else if ((!pstrWFIDrv->IFC_UP) && (dev == wl->vif[1]->ndev)) { + else if ((!pstrWFIDrv->IFC_UP) && (dev == wl->vif[1]->ndev)) pstrDisconnectNotifInfo->reason = 1; - } + cfg80211_disconnected(dev, pstrDisconnectNotifInfo->reason, pstrDisconnectNotifInfo->ie, pstrDisconnectNotifInfo->ie_len, false, GFP_KERNEL); @@ -739,18 +739,15 @@ static int connect(struct wiphy *wiphy, struct net_device *dev, wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len, sme->key_idx); } else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) { - if (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_TKIP) { + if (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_TKIP) u8security = ENCRYPT_ENABLED | WPA2 | TKIP; - } else { + else u8security = ENCRYPT_ENABLED | WPA2 | AES; - } } else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) { - if (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_TKIP) { + if (sme->crypto.cipher_group == WLAN_CIPHER_SUITE_TKIP) u8security = ENCRYPT_ENABLED | WPA | TKIP; - } else { + else u8security = ENCRYPT_ENABLED | WPA | AES; - } - } else { s32Error = -ENOTSUPP; netdev_err(dev, "Not supported cipher\n"); @@ -762,11 +759,10 @@ static int connect(struct wiphy *wiphy, struct net_device *dev, if ((sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) || (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)) { for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++) { - if (sme->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP) { + if (sme->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP) u8security = u8security | TKIP; - } else { + else u8security = u8security | AES; - } } } @@ -1355,9 +1351,8 @@ static void WILC_WFI_CfgParseRxAction(u8 *buf, u32 len) u8 channel_list_attr_index = 0; while (index < len) { - if (buf[index] == GO_INTENT_ATTR_ID) { + if (buf[index] == GO_INTENT_ATTR_ID) buf[index + 3] = (buf[index + 3] & 0x01) | (0x00 << 1); - } if (buf[index] == CHANLIST_ATTR_ID) channel_list_attr_index = index; @@ -1369,9 +1364,8 @@ static void WILC_WFI_CfgParseRxAction(u8 *buf, u32 len) if (channel_list_attr_index) { for (i = channel_list_attr_index + 3; i < ((channel_list_attr_index + 3) + buf[channel_list_attr_index + 1]); i++) { if (buf[i] == 0x51) { - for (j = i + 2; j < ((i + 2) + buf[i + 1]); j++) { + for (j = i + 2; j < ((i + 2) + buf[i + 1]); j++) buf[j] = wlan_channel; - } break; } } @@ -1409,9 +1403,8 @@ static void WILC_WFI_CfgParseTxAction(u8 *buf, u32 len, bool bOperChan, u8 iftyp if (channel_list_attr_index) { for (i = channel_list_attr_index + 3; i < ((channel_list_attr_index + 3) + buf[channel_list_attr_index + 1]); i++) { if (buf[i] == 0x51) { - for (j = i + 2; j < ((i + 2) + buf[i + 1]); j++) { + for (j = i + 2; j < ((i + 2) + buf[i + 1]); j++) buf[j] = wlan_channel; - } break; } } diff --git a/drivers/staging/wilc1000/wilc_wlan_cfg.c b/drivers/staging/wilc1000/wilc_wlan_cfg.c index b3425b9..b9711ca 100644 --- a/drivers/staging/wilc1000/wilc_wlan_cfg.c +++ b/drivers/staging/wilc1000/wilc_wlan_cfg.c @@ -253,9 +253,8 @@ static int wilc_wlan_cfg_set_bin(u8 *frame, u32 offset, u16 id, u8 *b, u32 size) if ((b != NULL) && (size != 0)) { memcpy(&buf[4], b, size); - for (i = 0; i < size; i++) { + for (i = 0; i < size; i++) checksum += buf[i + 4]; - } } buf[size + 4] = checksum; -- cgit v0.10.2 From b59958ee900c81692da131873c0fc0b1599f164f Mon Sep 17 00:00:00 2001 From: "Roger H. Newell" Date: Sat, 19 Mar 2016 12:50:52 -0230 Subject: staging: wilc1000: Replaced comparison to NULL statements This patch corrects checks generated by checkpatch.pl by replacing comparison to null statements with equivalent statements in the form "x" or "!x" Signed-off-by: Roger H. Newell Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index f50571f..4be8b31 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -1648,7 +1648,7 @@ static int Handle_Key(struct wilc_vif *vif, complete(&hif_drv->comp_test_key_block); } else if (pstrHostIFkeyAttr->action & ADDKEY) { pu8keybuf = kzalloc(RX_MIC_KEY_MSG_LEN, GFP_KERNEL); - if (pu8keybuf == NULL) { + if (!pu8keybuf) { ret = -ENOMEM; goto _WPARxGtk_end_case_; } diff --git a/drivers/staging/wilc1000/wilc_wlan_cfg.c b/drivers/staging/wilc1000/wilc_wlan_cfg.c index b9711ca..926fc16 100644 --- a/drivers/staging/wilc1000/wilc_wlan_cfg.c +++ b/drivers/staging/wilc1000/wilc_wlan_cfg.c @@ -230,7 +230,7 @@ static int wilc_wlan_cfg_set_str(u8 *frame, u32 offset, u16 id, u8 *str, u32 siz buf[1] = (u8)(id >> 8); buf[2] = (u8)size; - if ((str != NULL) && (size != 0)) + if ((str) && (size != 0)) memcpy(&buf[3], str, size); return (size + 3); @@ -251,7 +251,7 @@ static int wilc_wlan_cfg_set_bin(u8 *frame, u32 offset, u16 id, u8 *b, u32 size) buf[2] = (u8)size; buf[3] = (u8)(size >> 8); - if ((b != NULL) && (size != 0)) { + if ((b) && (size != 0)) { memcpy(&buf[4], b, size); for (i = 0; i < size; i++) checksum += buf[i + 4]; -- cgit v0.10.2 From 4dadfb97b73f0fbcc0c6f5a6897c0942c05a9dd3 Mon Sep 17 00:00:00 2001 From: Juliana Rodrigues Date: Sun, 13 Mar 2016 15:07:30 -0300 Subject: staging: rtl8712: hal_init.c: fix comment block code style This patch fixes several warnings caused by malformed comments on hal_init.c and found by checkpatch.pl. Signed-off-by: Juliana Rodrigues Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c index 8008efe..37fe0a4 100644 --- a/drivers/staging/rtl8712/hal_init.c +++ b/drivers/staging/rtl8712/hal_init.c @@ -297,7 +297,8 @@ static u8 rtl8712_dl_fw(struct _adapter *padapter) tmp8 = r8712_read8(padapter, 0x1025000A); if (tmp8 & BIT(4)) /* When boot from EEPROM, - & FW need more time to read EEPROM */ + * & FW need more time to read EEPROM + */ i = 60; else /* boot from EFUSE */ i = 30; @@ -332,7 +333,8 @@ uint rtl8712_hal_init(struct _adapter *padapter) r8712_read32(padapter, RCR)); val32 = r8712_read32(padapter, RCR); r8712_write32(padapter, RCR, (val32 | BIT(26))); /* Enable RX TCP - Checksum offload */ + * Checksum offload + */ netdev_info(padapter->pnetdev, "2 RCR=0x%x\n", r8712_read32(padapter, RCR)); val32 = r8712_read32(padapter, RCR); @@ -346,7 +348,8 @@ uint rtl8712_hal_init(struct _adapter *padapter) r8712_write8(padapter, 0x102500BD, r8712_read8(padapter, 0x102500BD) | BIT(7)); /* enable usb rx aggregation */ r8712_write8(padapter, 0x102500D9, 1); /* TH=1 => means that invalidate - * usb rx aggregation */ + * usb rx aggregation + */ r8712_write8(padapter, 0x1025FE5B, 0x04); /* 1.7ms/4 */ /* Fix the RX FIFO issue(USB error) */ r8712_write8(padapter, 0x1025fe5C, r8712_read8(padapter, 0x1025fe5C) @@ -367,7 +370,8 @@ uint rtl8712_hal_deinit(struct _adapter *padapter) r8712_write8(padapter, SYS_FUNC_EN + 1, 0x70); r8712_write8(padapter, PMC_FSM, 0x06); /* Enable Loader Data Keep */ r8712_write8(padapter, SYS_ISO_CTRL, 0xF9); /* Isolation signals from - * CORE, PLL */ + * CORE, PLL + */ r8712_write8(padapter, SYS_ISO_CTRL + 1, 0xe8); /* Enable EFUSE 1.2V */ r8712_write8(padapter, AFE_PLL_CTRL, 0x00); /* Disable AFE PLL. */ r8712_write8(padapter, LDOA15_CTRL, 0x54); /* Disable A15V */ -- cgit v0.10.2 From 7fcf92c0a4847b0d66fbc09446561752ec2d2575 Mon Sep 17 00:00:00 2001 From: Juliana Rodrigues Date: Sun, 13 Mar 2016 15:30:57 -0300 Subject: staging: rtl8712: rtl8712_cmd.c: fixed comparison to null This patch fixes multiple "comparison to NULL" checkpatch.pl issues: CHECK: Comparison to NULL could be written "!pcmd" + if (pcmd == NULL) Signed-off-by: Juliana Rodrigues Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/rtl8712_cmd.c b/drivers/staging/rtl8712/rtl8712_cmd.c index 50f4002..13c0183 100644 --- a/drivers/staging/rtl8712/rtl8712_cmd.c +++ b/drivers/staging/rtl8712/rtl8712_cmd.c @@ -135,7 +135,7 @@ static u8 read_macreg_hdl(struct _adapter *padapter, u8 *pbuf) /* invoke cmd->callback function */ pcmd_callback = cmd_callback[pcmd->cmdcode].callback; - if (pcmd_callback == NULL) + if (!pcmd_callback) r8712_free_cmd_obj(pcmd); else pcmd_callback(padapter, pcmd); @@ -149,7 +149,7 @@ static u8 write_macreg_hdl(struct _adapter *padapter, u8 *pbuf) /* invoke cmd->callback function */ pcmd_callback = cmd_callback[pcmd->cmdcode].callback; - if (pcmd_callback == NULL) + if (!pcmd_callback) r8712_free_cmd_obj(pcmd); else pcmd_callback(padapter, pcmd); @@ -165,7 +165,7 @@ static u8 read_bbreg_hdl(struct _adapter *padapter, u8 *pbuf) if (pcmd->rsp && pcmd->rspsz > 0) memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz); pcmd_callback = cmd_callback[pcmd->cmdcode].callback; - if (pcmd_callback == NULL) + if (!pcmd_callback) r8712_free_cmd_obj(pcmd); else pcmd_callback(padapter, pcmd); @@ -178,7 +178,7 @@ static u8 write_bbreg_hdl(struct _adapter *padapter, u8 *pbuf) struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; pcmd_callback = cmd_callback[pcmd->cmdcode].callback; - if (pcmd_callback == NULL) + if (!pcmd_callback) r8712_free_cmd_obj(pcmd); else pcmd_callback(padapter, pcmd); @@ -194,7 +194,7 @@ static u8 read_rfreg_hdl(struct _adapter *padapter, u8 *pbuf) if (pcmd->rsp && pcmd->rspsz > 0) memcpy(pcmd->rsp, (u8 *)&val, pcmd->rspsz); pcmd_callback = cmd_callback[pcmd->cmdcode].callback; - if (pcmd_callback == NULL) + if (!pcmd_callback) r8712_free_cmd_obj(pcmd); else pcmd_callback(padapter, pcmd); @@ -207,7 +207,7 @@ static u8 write_rfreg_hdl(struct _adapter *padapter, u8 *pbuf) struct cmd_obj *pcmd = (struct cmd_obj *)pbuf; pcmd_callback = cmd_callback[pcmd->cmdcode].callback; - if (pcmd_callback == NULL) + if (!pcmd_callback) r8712_free_cmd_obj(pcmd); else pcmd_callback(padapter, pcmd); @@ -227,7 +227,7 @@ static struct cmd_obj *cmd_hdl_filter(struct _adapter *padapter, { struct cmd_obj *pcmd_r; - if (pcmd == NULL) + if (!pcmd) return pcmd; pcmd_r = NULL; @@ -416,7 +416,7 @@ _next: /* free all cmd_obj resources */ do { pcmd = r8712_dequeue_cmd(&(pcmdpriv->cmd_queue)); - if (pcmd == NULL) + if (!pcmd) break; r8712_free_cmd_obj(pcmd); } while (1); @@ -431,7 +431,7 @@ void r8712_event_handle(struct _adapter *padapter, uint *peventbuf) void (*event_callback)(struct _adapter *dev, u8 *pbuf); struct evt_priv *pevt_priv = &(padapter->evtpriv); - if (peventbuf == NULL) + if (!peventbuf) goto _abort_event_; evt_sz = (u16)(le32_to_cpu(*peventbuf) & 0xffff); evt_seq = (u8)((le32_to_cpu(*peventbuf) >> 24) & 0x7f); -- cgit v0.10.2 From 5a9e10a11e6a76f726235a788265b7c6c5bd1bd7 Mon Sep 17 00:00:00 2001 From: Ben Marsh Date: Sat, 12 Mar 2016 10:33:00 +0100 Subject: Staging: rtl8188eu: removes an unnecessary cast on a void pointer. Patch to rtl8188e_rxdesc.c to remove an unnecessary cast on a void pointer. Signed-off-by: Ben Marsh Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c b/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c index 53cf3ba..4c78369 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c @@ -64,7 +64,7 @@ static void process_link_qual(struct adapter *padapter, void rtl8188e_process_phy_info(struct adapter *padapter, void *prframe) { - struct recv_frame *precvframe = (struct recv_frame *)prframe; + struct recv_frame *precvframe = prframe; /* Check RSSI */ process_rssi(padapter, precvframe); -- cgit v0.10.2 From fb025382b4c2e394dd2b5ac4d173d42d2d9b5b69 Mon Sep 17 00:00:00 2001 From: Kyle Kuffermann Date: Sun, 13 Mar 2016 10:16:27 -0400 Subject: staging: rtl8188eu: Remove license paragraph with mailing address This fixes the issue reported by checkpatch.pl: "Do not include the paragraph about writing to the Free Software Foundation's mailing address from the sample GPL notice. The FSF has changed addresses in the past, and may do so again. Linux already includes a copy of the GPL." in all files for the rtl8188eu driver. Signed-off-by: Kyle Kuffermann Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c index 012860b..a575535 100644 --- a/drivers/staging/rtl8188eu/core/rtw_ap.c +++ b/drivers/staging/rtl8188eu/core/rtw_ap.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_AP_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_cmd.c b/drivers/staging/rtl8188eu/core/rtw_cmd.c index e5a6b7a..f08d052 100644 --- a/drivers/staging/rtl8188eu/core/rtw_cmd.c +++ b/drivers/staging/rtl8188eu/core/rtw_cmd.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_CMD_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_debug.c b/drivers/staging/rtl8188eu/core/rtw_debug.c index 93e898d..db5c952 100644 --- a/drivers/staging/rtl8188eu/core/rtw_debug.c +++ b/drivers/staging/rtl8188eu/core/rtw_debug.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_DEBUG_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_efuse.c b/drivers/staging/rtl8188eu/core/rtw_efuse.c index 19f11d0..fbce1f7 100644 --- a/drivers/staging/rtl8188eu/core/rtw_efuse.c +++ b/drivers/staging/rtl8188eu/core/rtw_efuse.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_EFUSE_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c index f4e4baf..0b0d78f 100644 --- a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c +++ b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _IEEE80211_C diff --git a/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c b/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c index cf60717..f85a6ab 100644 --- a/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c +++ b/drivers/staging/rtl8188eu/core/rtw_ioctl_set.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_IOCTL_SET_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme.c b/drivers/staging/rtl8188eu/core/rtw_mlme.c index a645a62..472cd3f 100644 --- a/drivers/staging/rtl8188eu/core/rtw_mlme.c +++ b/drivers/staging/rtl8188eu/core/rtw_mlme.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_MLME_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c index 591a912..da6ccc1 100644 --- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c +++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_MLME_EXT_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c index 5e1ef9f..59c6d8a 100644 --- a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c +++ b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_PWRCTRL_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c index 5f53aa1..977bb25 100644 --- a/drivers/staging/rtl8188eu/core/rtw_recv.c +++ b/drivers/staging/rtl8188eu/core/rtw_recv.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_RECV_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_rf.c b/drivers/staging/rtl8188eu/core/rtw_rf.c index 4ad2d8f..3fc1a8f 100644 --- a/drivers/staging/rtl8188eu/core/rtw_rf.c +++ b/drivers/staging/rtl8188eu/core/rtw_rf.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_RF_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_security.c b/drivers/staging/rtl8188eu/core/rtw_security.c index b781ccf..442a614 100644 --- a/drivers/staging/rtl8188eu/core/rtw_security.c +++ b/drivers/staging/rtl8188eu/core/rtw_security.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_SECURITY_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_sreset.c b/drivers/staging/rtl8188eu/core/rtw_sreset.c index e725a47..13a5bf4 100644 --- a/drivers/staging/rtl8188eu/core/rtw_sreset.c +++ b/drivers/staging/rtl8188eu/core/rtw_sreset.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #include diff --git a/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c b/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c index 78a9b9b..a71e252 100644 --- a/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c +++ b/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_STA_MGT_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c index 8309669..4410fe8 100644 --- a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c +++ b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_WLAN_UTIL_C_ diff --git a/drivers/staging/rtl8188eu/core/rtw_xmit.c b/drivers/staging/rtl8188eu/core/rtw_xmit.c index f2dd7a6..e0a5567 100644 --- a/drivers/staging/rtl8188eu/core/rtw_xmit.c +++ b/drivers/staging/rtl8188eu/core/rtw_xmit.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTW_XMIT_C_ diff --git a/drivers/staging/rtl8188eu/hal/bb_cfg.c b/drivers/staging/rtl8188eu/hal/bb_cfg.c index c2ad6a3..cce1ea2 100644 --- a/drivers/staging/rtl8188eu/hal/bb_cfg.c +++ b/drivers/staging/rtl8188eu/hal/bb_cfg.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * -* You should have received a copy of the GNU General Public License along with -* this program; if not, write to the Free Software Foundation, Inc., -* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA -* -* ******************************************************************************/ #include "odm_precomp.h" diff --git a/drivers/staging/rtl8188eu/hal/fw.c b/drivers/staging/rtl8188eu/hal/fw.c index 656133c..03d091b 100644 --- a/drivers/staging/rtl8188eu/hal/fw.c +++ b/drivers/staging/rtl8188eu/hal/fw.c @@ -11,10 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * * The full GNU General Public License is included in this distribution in the * file called LICENSE. * diff --git a/drivers/staging/rtl8188eu/hal/hal_com.c b/drivers/staging/rtl8188eu/hal/hal_com.c index 3871cda..960cc40 100644 --- a/drivers/staging/rtl8188eu/hal/hal_com.c +++ b/drivers/staging/rtl8188eu/hal/hal_com.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #include #include diff --git a/drivers/staging/rtl8188eu/hal/hal_intf.c b/drivers/staging/rtl8188eu/hal/hal_intf.c index 85c17ef..c49c86c 100644 --- a/drivers/staging/rtl8188eu/hal/hal_intf.c +++ b/drivers/staging/rtl8188eu/hal/hal_intf.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _HAL_INTF_C_ diff --git a/drivers/staging/rtl8188eu/hal/mac_cfg.c b/drivers/staging/rtl8188eu/hal/mac_cfg.c index 0bc1b21..6ed5e15 100644 --- a/drivers/staging/rtl8188eu/hal/mac_cfg.c +++ b/drivers/staging/rtl8188eu/hal/mac_cfg.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * -* You should have received a copy of the GNU General Public License along with -* this program; if not, write to the Free Software Foundation, Inc., -* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA -* -* ******************************************************************************/ #include "odm_precomp.h" diff --git a/drivers/staging/rtl8188eu/hal/odm.c b/drivers/staging/rtl8188eu/hal/odm.c index 8d2316b..57a1275 100644 --- a/drivers/staging/rtl8188eu/hal/odm.c +++ b/drivers/staging/rtl8188eu/hal/odm.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ /* include files */ diff --git a/drivers/staging/rtl8188eu/hal/odm_HWConfig.c b/drivers/staging/rtl8188eu/hal/odm_HWConfig.c index 28b9f7f..0555e42 100644 --- a/drivers/staging/rtl8188eu/hal/odm_HWConfig.c +++ b/drivers/staging/rtl8188eu/hal/odm_HWConfig.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ /* include files */ diff --git a/drivers/staging/rtl8188eu/hal/odm_RTL8188E.c b/drivers/staging/rtl8188eu/hal/odm_RTL8188E.c index c0242a0..dd9b902 100644 --- a/drivers/staging/rtl8188eu/hal/odm_RTL8188E.c +++ b/drivers/staging/rtl8188eu/hal/odm_RTL8188E.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #include "odm_precomp.h" diff --git a/drivers/staging/rtl8188eu/hal/phy.c b/drivers/staging/rtl8188eu/hal/phy.c index ae42b44..a83bbea9 100644 --- a/drivers/staging/rtl8188eu/hal/phy.c +++ b/drivers/staging/rtl8188eu/hal/phy.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTL8188E_PHYCFG_C_ diff --git a/drivers/staging/rtl8188eu/hal/pwrseq.c b/drivers/staging/rtl8188eu/hal/pwrseq.c index 20dce42..d92a34e 100644 --- a/drivers/staging/rtl8188eu/hal/pwrseq.c +++ b/drivers/staging/rtl8188eu/hal/pwrseq.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #include "pwrseq.h" diff --git a/drivers/staging/rtl8188eu/hal/pwrseqcmd.c b/drivers/staging/rtl8188eu/hal/pwrseqcmd.c index b76b0f5..2867864 100644 --- a/drivers/staging/rtl8188eu/hal/pwrseqcmd.c +++ b/drivers/staging/rtl8188eu/hal/pwrseqcmd.c @@ -11,10 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * ******************************************************************************/ #include diff --git a/drivers/staging/rtl8188eu/hal/rf.c b/drivers/staging/rtl8188eu/hal/rf.c index 38845d1..1596274 100644 --- a/drivers/staging/rtl8188eu/hal/rf.c +++ b/drivers/staging/rtl8188eu/hal/rf.c @@ -11,10 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * ******************************************************************************/ #include diff --git a/drivers/staging/rtl8188eu/hal/rf_cfg.c b/drivers/staging/rtl8188eu/hal/rf_cfg.c index 4494542..453f9e7 100644 --- a/drivers/staging/rtl8188eu/hal/rf_cfg.c +++ b/drivers/staging/rtl8188eu/hal/rf_cfg.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * -* You should have received a copy of the GNU General Public License along with -* this program; if not, write to the Free Software Foundation, Inc., -* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA -* -* ******************************************************************************/ #include "odm_precomp.h" diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c b/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c index 5808763..2422c02 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTL8188E_CMD_C_ diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c b/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c index f9919a9..81f2931 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188e_dm.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ /* */ /* Description: */ diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c index 2592bc2..0b444fd 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _HAL_INIT_C_ diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c b/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c index 4c78369..4ac6bcf 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTL8188E_REDESC_C_ diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_xmit.c b/drivers/staging/rtl8188eu/hal/rtl8188e_xmit.c index a6ba53b..460a205 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188e_xmit.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188e_xmit.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTL8188E_XMIT_C_ diff --git a/drivers/staging/rtl8188eu/hal/rtl8188eu_led.c b/drivers/staging/rtl8188eu/hal/rtl8188eu_led.c index 564cf53..d9e677e 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188eu_led.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188eu_led.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #include diff --git a/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c b/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c index d6d009a..255d6f2 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188eu_recv.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTL8188EU_RECV_C_ #include diff --git a/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c b/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c index c96d804..ec21d8c 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _RTL8188E_XMIT_C_ #include diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index 07a61b8..358762d 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _HCI_HAL_INIT_C_ diff --git a/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h b/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h index 2670d6b..8990748 100644 --- a/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h +++ b/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __INC_HAL8188EPHYCFG_H__ #define __INC_HAL8188EPHYCFG_H__ diff --git a/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h b/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h index 9f2969b..344c73d 100644 --- a/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h +++ b/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __INC_HAL8188EPHYREG_H__ #define __INC_HAL8188EPHYREG_H__ diff --git a/drivers/staging/rtl8188eu/include/HalHWImg8188E_FW.h b/drivers/staging/rtl8188eu/include/HalHWImg8188E_FW.h index 1bf9bc7..dbb5524 100644 --- a/drivers/staging/rtl8188eu/include/HalHWImg8188E_FW.h +++ b/drivers/staging/rtl8188eu/include/HalHWImg8188E_FW.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * -* You should have received a copy of the GNU General Public License along with -* this program; if not, write to the Free Software Foundation, Inc., -* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA -* -* ******************************************************************************/ #ifndef __INC_FW_8188E_HW_IMG_H diff --git a/drivers/staging/rtl8188eu/include/HalVerDef.h b/drivers/staging/rtl8188eu/include/HalVerDef.h index 6f2b2a4..d244eff 100644 --- a/drivers/staging/rtl8188eu/include/HalVerDef.h +++ b/drivers/staging/rtl8188eu/include/HalVerDef.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __HAL_VERSION_DEF_H__ #define __HAL_VERSION_DEF_H__ diff --git a/drivers/staging/rtl8188eu/include/basic_types.h b/drivers/staging/rtl8188eu/include/basic_types.h index 3fb691d..2c1676d 100644 --- a/drivers/staging/rtl8188eu/include/basic_types.h +++ b/drivers/staging/rtl8188eu/include/basic_types.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __BASIC_TYPES_H__ #define __BASIC_TYPES_H__ diff --git a/drivers/staging/rtl8188eu/include/drv_types.h b/drivers/staging/rtl8188eu/include/drv_types.h index dcb032b..55506a7 100644 --- a/drivers/staging/rtl8188eu/include/drv_types.h +++ b/drivers/staging/rtl8188eu/include/drv_types.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ /*----------------------------------------------------------------------------- diff --git a/drivers/staging/rtl8188eu/include/fw.h b/drivers/staging/rtl8188eu/include/fw.h index 7884d8f..b016f32 100644 --- a/drivers/staging/rtl8188eu/include/fw.h +++ b/drivers/staging/rtl8188eu/include/fw.h @@ -11,10 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * * The full GNU General Public License is included in this distribution in the * file called LICENSE. * diff --git a/drivers/staging/rtl8188eu/include/hal_com.h b/drivers/staging/rtl8188eu/include/hal_com.h index 47715d9..aaf4447 100644 --- a/drivers/staging/rtl8188eu/include/hal_com.h +++ b/drivers/staging/rtl8188eu/include/hal_com.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __HAL_COMMON_H__ #define __HAL_COMMON_H__ diff --git a/drivers/staging/rtl8188eu/include/hal_intf.h b/drivers/staging/rtl8188eu/include/hal_intf.h index 1b1c102..eaf939b 100644 --- a/drivers/staging/rtl8188eu/include/hal_intf.h +++ b/drivers/staging/rtl8188eu/include/hal_intf.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __HAL_INTF_H__ #define __HAL_INTF_H__ diff --git a/drivers/staging/rtl8188eu/include/ieee80211.h b/drivers/staging/rtl8188eu/include/ieee80211.h index f8f5eb6..d8284c8 100644 --- a/drivers/staging/rtl8188eu/include/ieee80211.h +++ b/drivers/staging/rtl8188eu/include/ieee80211.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __IEEE80211_H #define __IEEE80211_H diff --git a/drivers/staging/rtl8188eu/include/mlme_osdep.h b/drivers/staging/rtl8188eu/include/mlme_osdep.h index ae1722c..5a35b08 100644 --- a/drivers/staging/rtl8188eu/include/mlme_osdep.h +++ b/drivers/staging/rtl8188eu/include/mlme_osdep.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __MLME_OSDEP_H_ #define __MLME_OSDEP_H_ diff --git a/drivers/staging/rtl8188eu/include/mp_custom_oid.h b/drivers/staging/rtl8188eu/include/mp_custom_oid.h index 6fa52cf..1a06ee6 100644 --- a/drivers/staging/rtl8188eu/include/mp_custom_oid.h +++ b/drivers/staging/rtl8188eu/include/mp_custom_oid.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __CUSTOM_OID_H #define __CUSTOM_OID_H diff --git a/drivers/staging/rtl8188eu/include/odm.h b/drivers/staging/rtl8188eu/include/odm.h index af781c7..dbebf17 100644 --- a/drivers/staging/rtl8188eu/include/odm.h +++ b/drivers/staging/rtl8188eu/include/odm.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ diff --git a/drivers/staging/rtl8188eu/include/odm_HWConfig.h b/drivers/staging/rtl8188eu/include/odm_HWConfig.h index ef792bf..da7325d 100644 --- a/drivers/staging/rtl8188eu/include/odm_HWConfig.h +++ b/drivers/staging/rtl8188eu/include/odm_HWConfig.h @@ -11,10 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * * ******************************************************************************/ diff --git a/drivers/staging/rtl8188eu/include/odm_RTL8188E.h b/drivers/staging/rtl8188eu/include/odm_RTL8188E.h index 14dce6c..72b4db6 100644 --- a/drivers/staging/rtl8188eu/include/odm_RTL8188E.h +++ b/drivers/staging/rtl8188eu/include/odm_RTL8188E.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __ODM_RTL8188E_H__ #define __ODM_RTL8188E_H__ diff --git a/drivers/staging/rtl8188eu/include/odm_RegDefine11N.h b/drivers/staging/rtl8188eu/include/odm_RegDefine11N.h index 5a61f90..c82c090 100644 --- a/drivers/staging/rtl8188eu/include/odm_RegDefine11N.h +++ b/drivers/staging/rtl8188eu/include/odm_RegDefine11N.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __ODM_REGDEFINE11N_H__ diff --git a/drivers/staging/rtl8188eu/include/odm_debug.h b/drivers/staging/rtl8188eu/include/odm_debug.h index e939096..52e51f1 100644 --- a/drivers/staging/rtl8188eu/include/odm_debug.h +++ b/drivers/staging/rtl8188eu/include/odm_debug.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ diff --git a/drivers/staging/rtl8188eu/include/odm_precomp.h b/drivers/staging/rtl8188eu/include/odm_precomp.h index 0f236da..9e5fe17 100644 --- a/drivers/staging/rtl8188eu/include/odm_precomp.h +++ b/drivers/staging/rtl8188eu/include/odm_precomp.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __ODM_PRECOMP_H__ diff --git a/drivers/staging/rtl8188eu/include/odm_reg.h b/drivers/staging/rtl8188eu/include/odm_reg.h index 7f10b69..3405a44 100644 --- a/drivers/staging/rtl8188eu/include/odm_reg.h +++ b/drivers/staging/rtl8188eu/include/odm_reg.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ /* */ /* File Name: odm_reg.h */ diff --git a/drivers/staging/rtl8188eu/include/odm_types.h b/drivers/staging/rtl8188eu/include/odm_types.h index c1355b9..3474a9c 100644 --- a/drivers/staging/rtl8188eu/include/odm_types.h +++ b/drivers/staging/rtl8188eu/include/odm_types.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __ODM_TYPES_H__ #define __ODM_TYPES_H__ diff --git a/drivers/staging/rtl8188eu/include/osdep_intf.h b/drivers/staging/rtl8188eu/include/osdep_intf.h index 1521744..54fca79 100644 --- a/drivers/staging/rtl8188eu/include/osdep_intf.h +++ b/drivers/staging/rtl8188eu/include/osdep_intf.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __OSDEP_INTF_H_ diff --git a/drivers/staging/rtl8188eu/include/osdep_service.h b/drivers/staging/rtl8188eu/include/osdep_service.h index 22de53d..5475956 100644 --- a/drivers/staging/rtl8188eu/include/osdep_service.h +++ b/drivers/staging/rtl8188eu/include/osdep_service.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __OSDEP_SERVICE_H_ #define __OSDEP_SERVICE_H_ diff --git a/drivers/staging/rtl8188eu/include/pwrseq.h b/drivers/staging/rtl8188eu/include/pwrseq.h index 9dbf843..afd61cf 100644 --- a/drivers/staging/rtl8188eu/include/pwrseq.h +++ b/drivers/staging/rtl8188eu/include/pwrseq.h @@ -12,11 +12,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __HAL8188EPWRSEQ_H__ diff --git a/drivers/staging/rtl8188eu/include/pwrseqcmd.h b/drivers/staging/rtl8188eu/include/pwrseqcmd.h index 468a3fb..c4a919e 100644 --- a/drivers/staging/rtl8188eu/include/pwrseqcmd.h +++ b/drivers/staging/rtl8188eu/include/pwrseqcmd.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __HALPWRSEQCMD_H__ #define __HALPWRSEQCMD_H__ diff --git a/drivers/staging/rtl8188eu/include/recv_osdep.h b/drivers/staging/rtl8188eu/include/recv_osdep.h index fdeb603..cad3158 100644 --- a/drivers/staging/rtl8188eu/include/recv_osdep.h +++ b/drivers/staging/rtl8188eu/include/recv_osdep.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RECV_OSDEP_H_ #define __RECV_OSDEP_H_ diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_cmd.h b/drivers/staging/rtl8188eu/include/rtl8188e_cmd.h index f813ce0..4d7d804 100644 --- a/drivers/staging/rtl8188eu/include/rtl8188e_cmd.h +++ b/drivers/staging/rtl8188eu/include/rtl8188e_cmd.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTL8188E_CMD_H__ #define __RTL8188E_CMD_H__ diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_dm.h b/drivers/staging/rtl8188eu/include/rtl8188e_dm.h index 5e0ac31..4190112 100644 --- a/drivers/staging/rtl8188eu/include/rtl8188e_dm.h +++ b/drivers/staging/rtl8188eu/include/rtl8188e_dm.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTL8188E_DM_H__ #define __RTL8188E_DM_H__ diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_hal.h b/drivers/staging/rtl8188eu/include/rtl8188e_hal.h index 9f5050e..9dd5c29 100644 --- a/drivers/staging/rtl8188eu/include/rtl8188e_hal.h +++ b/drivers/staging/rtl8188eu/include/rtl8188e_hal.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTL8188E_HAL_H__ #define __RTL8188E_HAL_H__ diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_led.h b/drivers/staging/rtl8188eu/include/rtl8188e_led.h index c0147e7..fca6d8c 100644 --- a/drivers/staging/rtl8188eu/include/rtl8188e_led.h +++ b/drivers/staging/rtl8188eu/include/rtl8188e_led.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTL8188E_LED_H__ #define __RTL8188E_LED_H__ diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_recv.h b/drivers/staging/rtl8188eu/include/rtl8188e_recv.h index 5fed30d..54048bc 100644 --- a/drivers/staging/rtl8188eu/include/rtl8188e_recv.h +++ b/drivers/staging/rtl8188eu/include/rtl8188e_recv.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTL8188E_RECV_H__ #define __RTL8188E_RECV_H__ diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_spec.h b/drivers/staging/rtl8188eu/include/rtl8188e_spec.h index beeee4a6..fb82f66 100644 --- a/drivers/staging/rtl8188eu/include/rtl8188e_spec.h +++ b/drivers/staging/rtl8188eu/include/rtl8188e_spec.h @@ -11,10 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * *******************************************************************************/ #ifndef __RTL8188E_SPEC_H__ #define __RTL8188E_SPEC_H__ diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_xmit.h b/drivers/staging/rtl8188eu/include/rtl8188e_xmit.h index 0b96d42..65a63df 100644 --- a/drivers/staging/rtl8188eu/include/rtl8188e_xmit.h +++ b/drivers/staging/rtl8188eu/include/rtl8188e_xmit.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTL8188E_XMIT_H__ #define __RTL8188E_XMIT_H__ diff --git a/drivers/staging/rtl8188eu/include/rtw_android.h b/drivers/staging/rtl8188eu/include/rtw_android.h index e85bf1f..e81ee92 100644 --- a/drivers/staging/rtl8188eu/include/rtw_android.h +++ b/drivers/staging/rtl8188eu/include/rtw_android.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_ANDROID_H__ diff --git a/drivers/staging/rtl8188eu/include/rtw_ap.h b/drivers/staging/rtl8188eu/include/rtw_ap.h index 6128ccc..b820684 100644 --- a/drivers/staging/rtl8188eu/include/rtw_ap.h +++ b/drivers/staging/rtl8188eu/include/rtw_ap.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_AP_H_ #define __RTW_AP_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_cmd.h b/drivers/staging/rtl8188eu/include/rtw_cmd.h index 9e9f5f4..08ca592 100644 --- a/drivers/staging/rtl8188eu/include/rtw_cmd.h +++ b/drivers/staging/rtl8188eu/include/rtw_cmd.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_CMD_H_ #define __RTW_CMD_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_debug.h b/drivers/staging/rtl8188eu/include/rtw_debug.h index 971bf45..7ed4cad 100644 --- a/drivers/staging/rtl8188eu/include/rtw_debug.h +++ b/drivers/staging/rtl8188eu/include/rtw_debug.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_DEBUG_H__ #define __RTW_DEBUG_H__ diff --git a/drivers/staging/rtl8188eu/include/rtw_eeprom.h b/drivers/staging/rtl8188eu/include/rtw_eeprom.h index 904fea1..5dd7384 100644 --- a/drivers/staging/rtl8188eu/include/rtw_eeprom.h +++ b/drivers/staging/rtl8188eu/include/rtw_eeprom.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_EEPROM_H__ #define __RTW_EEPROM_H__ diff --git a/drivers/staging/rtl8188eu/include/rtw_efuse.h b/drivers/staging/rtl8188eu/include/rtw_efuse.h index 5660eed..9bfb10c 100644 --- a/drivers/staging/rtl8188eu/include/rtw_efuse.h +++ b/drivers/staging/rtl8188eu/include/rtw_efuse.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_EFUSE_H__ #define __RTW_EFUSE_H__ diff --git a/drivers/staging/rtl8188eu/include/rtw_event.h b/drivers/staging/rtl8188eu/include/rtw_event.h index 52151dc..5c34e56 100644 --- a/drivers/staging/rtl8188eu/include/rtw_event.h +++ b/drivers/staging/rtl8188eu/include/rtw_event.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef _RTW_EVENT_H_ #define _RTW_EVENT_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_ht.h b/drivers/staging/rtl8188eu/include/rtw_ht.h index beb210b..b45483f 100644 --- a/drivers/staging/rtl8188eu/include/rtw_ht.h +++ b/drivers/staging/rtl8188eu/include/rtw_ht.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef _RTW_HT_H_ #define _RTW_HT_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_ioctl.h b/drivers/staging/rtl8188eu/include/rtw_ioctl.h index ee2cb54..3a652df 100644 --- a/drivers/staging/rtl8188eu/include/rtw_ioctl.h +++ b/drivers/staging/rtl8188eu/include/rtw_ioctl.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef _RTW_IOCTL_H_ #define _RTW_IOCTL_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_ioctl_rtl.h b/drivers/staging/rtl8188eu/include/rtw_ioctl_rtl.h index 8fa3858..da4949f 100644 --- a/drivers/staging/rtl8188eu/include/rtw_ioctl_rtl.h +++ b/drivers/staging/rtl8188eu/include/rtw_ioctl_rtl.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef _RTW_IOCTL_RTL_H_ #define _RTW_IOCTL_RTL_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_ioctl_set.h b/drivers/staging/rtl8188eu/include/rtw_ioctl_set.h index fa9d655..b6e14a8 100644 --- a/drivers/staging/rtl8188eu/include/rtw_ioctl_set.h +++ b/drivers/staging/rtl8188eu/include/rtw_ioctl_set.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_IOCTL_SET_H_ #define __RTW_IOCTL_SET_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_iol.h b/drivers/staging/rtl8188eu/include/rtw_iol.h index 68aae7f..1f324e6 100644 --- a/drivers/staging/rtl8188eu/include/rtw_iol.h +++ b/drivers/staging/rtl8188eu/include/rtw_iol.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_IOL_H_ #define __RTW_IOL_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme.h b/drivers/staging/rtl8188eu/include/rtw_mlme.h index 4c99257..5d8bce0 100644 --- a/drivers/staging/rtl8188eu/include/rtw_mlme.h +++ b/drivers/staging/rtl8188eu/include/rtw_mlme.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_MLME_H_ #define __RTW_MLME_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h index 4471133..27382ff 100644 --- a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h +++ b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_MLME_EXT_H_ #define __RTW_MLME_EXT_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h b/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h index 30fd17f..02b3002 100644 --- a/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h +++ b/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ /***************************************************************************** * diff --git a/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h b/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h index a493d4c..9680e2e 100644 --- a/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h +++ b/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_PWRCTRL_H_ #define __RTW_PWRCTRL_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_qos.h b/drivers/staging/rtl8188eu/include/rtw_qos.h index bbee1dd..45a77f6 100644 --- a/drivers/staging/rtl8188eu/include/rtw_qos.h +++ b/drivers/staging/rtl8188eu/include/rtw_qos.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef _RTW_QOS_H_ #define _RTW_QOS_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_recv.h b/drivers/staging/rtl8188eu/include/rtw_recv.h index eb1ac3d..b0373b6 100644 --- a/drivers/staging/rtl8188eu/include/rtw_recv.h +++ b/drivers/staging/rtl8188eu/include/rtw_recv.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef _RTW_RECV_H_ #define _RTW_RECV_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_rf.h b/drivers/staging/rtl8188eu/include/rtw_rf.h index 35f61be..66896af 100644 --- a/drivers/staging/rtl8188eu/include/rtw_rf.h +++ b/drivers/staging/rtl8188eu/include/rtw_rf.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_RF_H_ #define __RTW_RF_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_security.h b/drivers/staging/rtl8188eu/include/rtw_security.h index a1aebe6..ca1247b 100644 --- a/drivers/staging/rtl8188eu/include/rtw_security.h +++ b/drivers/staging/rtl8188eu/include/rtw_security.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __RTW_SECURITY_H_ #define __RTW_SECURITY_H_ diff --git a/drivers/staging/rtl8188eu/include/rtw_sreset.h b/drivers/staging/rtl8188eu/include/rtw_sreset.h index 3a62ed0..ce027df 100644 --- a/drivers/staging/rtl8188eu/include/rtw_sreset.h +++ b/drivers/staging/rtl8188eu/include/rtw_sreset.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef _RTW_SRESET_C_ #define _RTW_SRESET_C_ diff --git a/drivers/staging/rtl8188eu/include/rtw_xmit.h b/drivers/staging/rtl8188eu/include/rtw_xmit.h index b7c2088..a0853ba 100644 --- a/drivers/staging/rtl8188eu/include/rtw_xmit.h +++ b/drivers/staging/rtl8188eu/include/rtw_xmit.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef _RTW_XMIT_H_ #define _RTW_XMIT_H_ diff --git a/drivers/staging/rtl8188eu/include/sta_info.h b/drivers/staging/rtl8188eu/include/sta_info.h index d4e7832..42a03512 100644 --- a/drivers/staging/rtl8188eu/include/sta_info.h +++ b/drivers/staging/rtl8188eu/include/sta_info.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __STA_INFO_H_ #define __STA_INFO_H_ diff --git a/drivers/staging/rtl8188eu/include/usb_hal.h b/drivers/staging/rtl8188eu/include/usb_hal.h index 8a65995..b1bf07a 100644 --- a/drivers/staging/rtl8188eu/include/usb_hal.h +++ b/drivers/staging/rtl8188eu/include/usb_hal.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __USB_HAL_H__ #define __USB_HAL_H__ diff --git a/drivers/staging/rtl8188eu/include/usb_ops_linux.h b/drivers/staging/rtl8188eu/include/usb_ops_linux.h index 4fdc536..2207333 100644 --- a/drivers/staging/rtl8188eu/include/usb_ops_linux.h +++ b/drivers/staging/rtl8188eu/include/usb_ops_linux.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __USB_OPS_LINUX_H__ #define __USB_OPS_LINUX_H__ diff --git a/drivers/staging/rtl8188eu/include/wifi.h b/drivers/staging/rtl8188eu/include/wifi.h index 6cb5bec..e7c5121 100644 --- a/drivers/staging/rtl8188eu/include/wifi.h +++ b/drivers/staging/rtl8188eu/include/wifi.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef _WIFI_H_ #define _WIFI_H_ diff --git a/drivers/staging/rtl8188eu/include/wlan_bssdef.h b/drivers/staging/rtl8188eu/include/wlan_bssdef.h index 85b99da..560966c 100644 --- a/drivers/staging/rtl8188eu/include/wlan_bssdef.h +++ b/drivers/staging/rtl8188eu/include/wlan_bssdef.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __WLAN_BSSDEF_H__ #define __WLAN_BSSDEF_H__ diff --git a/drivers/staging/rtl8188eu/include/xmit_osdep.h b/drivers/staging/rtl8188eu/include/xmit_osdep.h index 13965f2..f96ca6a 100644 --- a/drivers/staging/rtl8188eu/include/xmit_osdep.h +++ b/drivers/staging/rtl8188eu/include/xmit_osdep.h @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #ifndef __XMIT_OSDEP_H_ #define __XMIT_OSDEP_H_ diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c index 9119804..eeb1694 100644 --- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c +++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _IOCTL_LINUX_C_ diff --git a/drivers/staging/rtl8188eu/os_dep/mlme_linux.c b/drivers/staging/rtl8188eu/os_dep/mlme_linux.c index 08bfa76..bc75626 100644 --- a/drivers/staging/rtl8188eu/os_dep/mlme_linux.c +++ b/drivers/staging/rtl8188eu/os_dep/mlme_linux.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ diff --git a/drivers/staging/rtl8188eu/os_dep/os_intfs.c b/drivers/staging/rtl8188eu/os_dep/os_intfs.c index 7986e67..ae2caff 100644 --- a/drivers/staging/rtl8188eu/os_dep/os_intfs.c +++ b/drivers/staging/rtl8188eu/os_dep/os_intfs.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _OS_INTFS_C_ diff --git a/drivers/staging/rtl8188eu/os_dep/osdep_service.c b/drivers/staging/rtl8188eu/os_dep/osdep_service.c index f090bef..764250b 100644 --- a/drivers/staging/rtl8188eu/os_dep/osdep_service.c +++ b/drivers/staging/rtl8188eu/os_dep/osdep_service.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ diff --git a/drivers/staging/rtl8188eu/os_dep/recv_linux.c b/drivers/staging/rtl8188eu/os_dep/recv_linux.c index d4734baf..0c44914 100644 --- a/drivers/staging/rtl8188eu/os_dep/recv_linux.c +++ b/drivers/staging/rtl8188eu/os_dep/recv_linux.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #include #include diff --git a/drivers/staging/rtl8188eu/os_dep/rtw_android.c b/drivers/staging/rtl8188eu/os_dep/rtw_android.c index 5f3337c..41e1b1d 100644 --- a/drivers/staging/rtl8188eu/os_dep/rtw_android.c +++ b/drivers/staging/rtl8188eu/os_dep/rtw_android.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #include diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c index 794cc11..8fd608d 100644 --- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c +++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define pr_fmt(fmt) "R8188EU: " fmt diff --git a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c index 0fea338..ce1e1a1 100644 --- a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c +++ b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c @@ -11,10 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * ******************************************************************************/ #define _USB_OPS_LINUX_C_ diff --git a/drivers/staging/rtl8188eu/os_dep/xmit_linux.c b/drivers/staging/rtl8188eu/os_dep/xmit_linux.c index 1593e28..221e275 100644 --- a/drivers/staging/rtl8188eu/os_dep/xmit_linux.c +++ b/drivers/staging/rtl8188eu/os_dep/xmit_linux.c @@ -11,11 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * - * ******************************************************************************/ #define _XMIT_OSDEP_C_ -- cgit v0.10.2 From 17d4591d96d66806d0edd759897699ae50f0e4d4 Mon Sep 17 00:00:00 2001 From: Nicholas Sim Date: Fri, 18 Mar 2016 12:11:07 +0000 Subject: staging: rtl8188eu: remove return at end of void function call Remove unnecessary return statement from last line of void function call Signed-off-by: Nicholas Sim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c index da6ccc1..86108d4 100644 --- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c +++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c @@ -2100,7 +2100,6 @@ static void site_survey(struct adapter *padapter) issue_action_BSSCoexistPacket(padapter); issue_action_BSSCoexistPacket(padapter); } - return; } /* collect bss info from Beacon and Probe request/response frames. */ -- cgit v0.10.2 From 7f69e09aba50113c639a2ed1cbc0e033808b16f2 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sat, 19 Mar 2016 16:14:30 +0530 Subject: Staging: rtl8188eu: Hal8188ERateAdaptive: Use x instead of x != NULL. Use x instead of x != NULL. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c b/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c index a108e80..201c15b 100644 --- a/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c +++ b/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c @@ -557,7 +557,7 @@ int ODM_RAInfo_Init(struct odm_dm_struct *dm_odm, u8 macid) u8 WirelessMode = 0xFF; /* invalid value */ u8 max_rate_idx = 0x13; /* MCS7 */ - if (dm_odm->pWirelessMode != NULL) + if (dm_odm->pWirelessMode) WirelessMode = *(dm_odm->pWirelessMode); if (WirelessMode != 0xFF) { -- cgit v0.10.2 From 79146cedc30aba94045114020608dbf951f4c1ff Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sat, 19 Mar 2016 16:16:38 +0530 Subject: Staging: rtl8188eu: hal_intf: Use x instead of x != NULL. Use x instead of x != NULL. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/hal_intf.c b/drivers/staging/rtl8188eu/hal/hal_intf.c index c49c86c..085f0fb 100644 --- a/drivers/staging/rtl8188eu/hal/hal_intf.c +++ b/drivers/staging/rtl8188eu/hal/hal_intf.c @@ -181,7 +181,7 @@ s32 rtw_hal_mgnt_xmit(struct adapter *adapt, struct xmit_frame *pmgntframe) s32 rtw_hal_init_xmit_priv(struct adapter *adapt) { - if (adapt->HalFunc.init_xmit_priv != NULL) + if (adapt->HalFunc.init_xmit_priv) return adapt->HalFunc.init_xmit_priv(adapt); return _FAIL; } -- cgit v0.10.2 From eec1c50002eafe1c48b550fff10bf3eca83f46ea Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sat, 19 Mar 2016 16:18:47 +0530 Subject: Staging: rtl8188eu: rtl8188e_rxdesc: Use !x instead of x == NULL. Use !x instead of x == NULL. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c b/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c index 4ac6bcf..f110c96 100644 --- a/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c +++ b/drivers/staging/rtl8188eu/hal/rtl8188e_rxdesc.c @@ -40,7 +40,7 @@ static void process_link_qual(struct adapter *padapter, struct rx_pkt_attrib *pattrib; struct signal_stat *signal_stat; - if (prframe == NULL || padapter == NULL) + if (!prframe || !padapter) return; pattrib = &prframe->attrib; -- cgit v0.10.2 From f3e80d80e9db08edc3de35996027a657b4a8c8de Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sat, 19 Mar 2016 16:20:25 +0530 Subject: Staging: rtl8188eu: usb_halinit: Use !x instead of x == NULL. Use !x instead of x == NULL. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index 358762d..0c7456f 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -2078,7 +2078,7 @@ void rtl8188eu_set_hal_ops(struct adapter *adapt) adapt->HalData = kzalloc(sizeof(struct hal_data_8188e), GFP_KERNEL); - if (adapt->HalData == NULL) + if (!adapt->HalData) DBG_88E("cant not alloc memory for HAL DATA\n"); halfunc->hal_power_on = rtl8188eu_InitPowerOn; -- cgit v0.10.2 From 57d8dfed8586427880516536cf0abc3aa19cea78 Mon Sep 17 00:00:00 2001 From: Sam Horlbeck Olsen Date: Mon, 14 Mar 2016 02:09:58 -0500 Subject: staging: dgnc: Add whitespace around OR'd flags ("|") This patch fixes the checkpatch.pl message: CHECK: spaces preferred around that '|' (ctx:VxV) + writeb((UART_FCR_ENABLE_FIFO|UART_FCR_CLEAR_RCVR|UART_FCR_CLEAR_XMIT), ^ ^ As per the guidelines for coding style in the kernel, I have updated the digi international driver to include spaces around the OR'd flags; not only is this formatting issue caught by `checkpatch.pl`, in the next `if` block the correct formatting is used, leading to both incorrect and inconsistent code formatting. This patch puts the line in question at 82 characters---while this is over the recommended limit, there are no clear locations to break the line and it barely breaks the cutoff. Signed-off-by: Sam Horlbeck Olsen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c index 0ff3139..5e46ac8 100644 --- a/drivers/staging/dgnc/dgnc_cls.c +++ b/drivers/staging/dgnc/dgnc_cls.c @@ -1168,7 +1168,7 @@ static void cls_uart_init(struct channel_t *ch) /* Clear out UART and FIFO */ readb(&ch->ch_cls_uart->txrx); - writeb((UART_FCR_ENABLE_FIFO|UART_FCR_CLEAR_RCVR|UART_FCR_CLEAR_XMIT), + writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT), &ch->ch_cls_uart->isr_fcr); udelay(10); -- cgit v0.10.2 From 3733d3f997b468481e609d47fa35badd47d0bf06 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Fri, 18 Mar 2016 13:32:12 -0700 Subject: staging: skein: threefish_block: Use ror64 Use the inline instead of direct code to improve readability and shorten the code a little. Done with perl: $ perl -p -i -e 's/\((\w+) \>\> (\d+)\) \| \(\1 \<\< \(64 \- \2\)\)/ror64(\1, \2)/g' drivers/staging/skein/threefish_block.c Signed-off-by: Joe Perches Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/skein/threefish_block.c b/drivers/staging/skein/threefish_block.c index e19ac43..a95563f 100644 --- a/drivers/staging/skein/threefish_block.c +++ b/drivers/staging/skein/threefish_block.c @@ -512,622 +512,622 @@ void threefish_decrypt_256(struct threefish_key *key_ctx, u64 *input, b2 -= k0 + t1; b3 -= k1 + 18; tmp = b3 ^ b0; - b3 = (tmp >> 32) | (tmp << (64 - 32)); + b3 = ror64(tmp, 32); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 32) | (tmp << (64 - 32)); + b1 = ror64(tmp, 32); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 58) | (tmp << (64 - 58)); + b1 = ror64(tmp, 58); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 46) | (tmp << (64 - 46)); + b3 = ror64(tmp, 46); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 12) | (tmp << (64 - 12)); + b1 = ror64(tmp, 12); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b0 -= b1 + k2; b1 -= k3 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 33) | (tmp << (64 - 33)); + b3 = ror64(tmp, 33); b2 -= b3 + k4 + t0; b3 -= k0 + 17; tmp = b3 ^ b0; - b3 = (tmp >> 5) | (tmp << (64 - 5)); + b3 = ror64(tmp, 5); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 37) | (tmp << (64 - 37)); + b1 = ror64(tmp, 37); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 40) | (tmp << (64 - 40)); + b3 = ror64(tmp, 40); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 52) | (tmp << (64 - 52)); + b3 = ror64(tmp, 52); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 57) | (tmp << (64 - 57)); + b1 = ror64(tmp, 57); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 14) | (tmp << (64 - 14)); + b1 = ror64(tmp, 14); b0 -= b1 + k1; b1 -= k2 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b2 -= b3 + k3 + t2; b3 -= k4 + 16; tmp = b3 ^ b0; - b3 = (tmp >> 32) | (tmp << (64 - 32)); + b3 = ror64(tmp, 32); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 32) | (tmp << (64 - 32)); + b1 = ror64(tmp, 32); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 58) | (tmp << (64 - 58)); + b1 = ror64(tmp, 58); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 46) | (tmp << (64 - 46)); + b3 = ror64(tmp, 46); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 12) | (tmp << (64 - 12)); + b1 = ror64(tmp, 12); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b0 -= b1 + k0; b1 -= k1 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 33) | (tmp << (64 - 33)); + b3 = ror64(tmp, 33); b2 -= b3 + k2 + t1; b3 -= k3 + 15; tmp = b3 ^ b0; - b3 = (tmp >> 5) | (tmp << (64 - 5)); + b3 = ror64(tmp, 5); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 37) | (tmp << (64 - 37)); + b1 = ror64(tmp, 37); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 40) | (tmp << (64 - 40)); + b3 = ror64(tmp, 40); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 52) | (tmp << (64 - 52)); + b3 = ror64(tmp, 52); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 57) | (tmp << (64 - 57)); + b1 = ror64(tmp, 57); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 14) | (tmp << (64 - 14)); + b1 = ror64(tmp, 14); b0 -= b1 + k4; b1 -= k0 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b2 -= b3 + k1 + t0; b3 -= k2 + 14; tmp = b3 ^ b0; - b3 = (tmp >> 32) | (tmp << (64 - 32)); + b3 = ror64(tmp, 32); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 32) | (tmp << (64 - 32)); + b1 = ror64(tmp, 32); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 58) | (tmp << (64 - 58)); + b1 = ror64(tmp, 58); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 46) | (tmp << (64 - 46)); + b3 = ror64(tmp, 46); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 12) | (tmp << (64 - 12)); + b1 = ror64(tmp, 12); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b0 -= b1 + k3; b1 -= k4 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 33) | (tmp << (64 - 33)); + b3 = ror64(tmp, 33); b2 -= b3 + k0 + t2; b3 -= k1 + 13; tmp = b3 ^ b0; - b3 = (tmp >> 5) | (tmp << (64 - 5)); + b3 = ror64(tmp, 5); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 37) | (tmp << (64 - 37)); + b1 = ror64(tmp, 37); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 40) | (tmp << (64 - 40)); + b3 = ror64(tmp, 40); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 52) | (tmp << (64 - 52)); + b3 = ror64(tmp, 52); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 57) | (tmp << (64 - 57)); + b1 = ror64(tmp, 57); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 14) | (tmp << (64 - 14)); + b1 = ror64(tmp, 14); b0 -= b1 + k2; b1 -= k3 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b2 -= b3 + k4 + t1; b3 -= k0 + 12; tmp = b3 ^ b0; - b3 = (tmp >> 32) | (tmp << (64 - 32)); + b3 = ror64(tmp, 32); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 32) | (tmp << (64 - 32)); + b1 = ror64(tmp, 32); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 58) | (tmp << (64 - 58)); + b1 = ror64(tmp, 58); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 46) | (tmp << (64 - 46)); + b3 = ror64(tmp, 46); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 12) | (tmp << (64 - 12)); + b1 = ror64(tmp, 12); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b0 -= b1 + k1; b1 -= k2 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 33) | (tmp << (64 - 33)); + b3 = ror64(tmp, 33); b2 -= b3 + k3 + t0; b3 -= k4 + 11; tmp = b3 ^ b0; - b3 = (tmp >> 5) | (tmp << (64 - 5)); + b3 = ror64(tmp, 5); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 37) | (tmp << (64 - 37)); + b1 = ror64(tmp, 37); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 40) | (tmp << (64 - 40)); + b3 = ror64(tmp, 40); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 52) | (tmp << (64 - 52)); + b3 = ror64(tmp, 52); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 57) | (tmp << (64 - 57)); + b1 = ror64(tmp, 57); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 14) | (tmp << (64 - 14)); + b1 = ror64(tmp, 14); b0 -= b1 + k0; b1 -= k1 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b2 -= b3 + k2 + t2; b3 -= k3 + 10; tmp = b3 ^ b0; - b3 = (tmp >> 32) | (tmp << (64 - 32)); + b3 = ror64(tmp, 32); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 32) | (tmp << (64 - 32)); + b1 = ror64(tmp, 32); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 58) | (tmp << (64 - 58)); + b1 = ror64(tmp, 58); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 46) | (tmp << (64 - 46)); + b3 = ror64(tmp, 46); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 12) | (tmp << (64 - 12)); + b1 = ror64(tmp, 12); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b0 -= b1 + k4; b1 -= k0 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 33) | (tmp << (64 - 33)); + b3 = ror64(tmp, 33); b2 -= b3 + k1 + t1; b3 -= k2 + 9; tmp = b3 ^ b0; - b3 = (tmp >> 5) | (tmp << (64 - 5)); + b3 = ror64(tmp, 5); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 37) | (tmp << (64 - 37)); + b1 = ror64(tmp, 37); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 40) | (tmp << (64 - 40)); + b3 = ror64(tmp, 40); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 52) | (tmp << (64 - 52)); + b3 = ror64(tmp, 52); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 57) | (tmp << (64 - 57)); + b1 = ror64(tmp, 57); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 14) | (tmp << (64 - 14)); + b1 = ror64(tmp, 14); b0 -= b1 + k3; b1 -= k4 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b2 -= b3 + k0 + t0; b3 -= k1 + 8; tmp = b3 ^ b0; - b3 = (tmp >> 32) | (tmp << (64 - 32)); + b3 = ror64(tmp, 32); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 32) | (tmp << (64 - 32)); + b1 = ror64(tmp, 32); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 58) | (tmp << (64 - 58)); + b1 = ror64(tmp, 58); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 46) | (tmp << (64 - 46)); + b3 = ror64(tmp, 46); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 12) | (tmp << (64 - 12)); + b1 = ror64(tmp, 12); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b0 -= b1 + k2; b1 -= k3 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 33) | (tmp << (64 - 33)); + b3 = ror64(tmp, 33); b2 -= b3 + k4 + t2; b3 -= k0 + 7; tmp = b3 ^ b0; - b3 = (tmp >> 5) | (tmp << (64 - 5)); + b3 = ror64(tmp, 5); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 37) | (tmp << (64 - 37)); + b1 = ror64(tmp, 37); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 40) | (tmp << (64 - 40)); + b3 = ror64(tmp, 40); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 52) | (tmp << (64 - 52)); + b3 = ror64(tmp, 52); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 57) | (tmp << (64 - 57)); + b1 = ror64(tmp, 57); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 14) | (tmp << (64 - 14)); + b1 = ror64(tmp, 14); b0 -= b1 + k1; b1 -= k2 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b2 -= b3 + k3 + t1; b3 -= k4 + 6; tmp = b3 ^ b0; - b3 = (tmp >> 32) | (tmp << (64 - 32)); + b3 = ror64(tmp, 32); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 32) | (tmp << (64 - 32)); + b1 = ror64(tmp, 32); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 58) | (tmp << (64 - 58)); + b1 = ror64(tmp, 58); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 46) | (tmp << (64 - 46)); + b3 = ror64(tmp, 46); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 12) | (tmp << (64 - 12)); + b1 = ror64(tmp, 12); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b0 -= b1 + k0; b1 -= k1 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 33) | (tmp << (64 - 33)); + b3 = ror64(tmp, 33); b2 -= b3 + k2 + t0; b3 -= k3 + 5; tmp = b3 ^ b0; - b3 = (tmp >> 5) | (tmp << (64 - 5)); + b3 = ror64(tmp, 5); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 37) | (tmp << (64 - 37)); + b1 = ror64(tmp, 37); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 40) | (tmp << (64 - 40)); + b3 = ror64(tmp, 40); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 52) | (tmp << (64 - 52)); + b3 = ror64(tmp, 52); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 57) | (tmp << (64 - 57)); + b1 = ror64(tmp, 57); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 14) | (tmp << (64 - 14)); + b1 = ror64(tmp, 14); b0 -= b1 + k4; b1 -= k0 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b2 -= b3 + k1 + t2; b3 -= k2 + 4; tmp = b3 ^ b0; - b3 = (tmp >> 32) | (tmp << (64 - 32)); + b3 = ror64(tmp, 32); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 32) | (tmp << (64 - 32)); + b1 = ror64(tmp, 32); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 58) | (tmp << (64 - 58)); + b1 = ror64(tmp, 58); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 46) | (tmp << (64 - 46)); + b3 = ror64(tmp, 46); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 12) | (tmp << (64 - 12)); + b1 = ror64(tmp, 12); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b0 -= b1 + k3; b1 -= k4 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 33) | (tmp << (64 - 33)); + b3 = ror64(tmp, 33); b2 -= b3 + k0 + t1; b3 -= k1 + 3; tmp = b3 ^ b0; - b3 = (tmp >> 5) | (tmp << (64 - 5)); + b3 = ror64(tmp, 5); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 37) | (tmp << (64 - 37)); + b1 = ror64(tmp, 37); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 40) | (tmp << (64 - 40)); + b3 = ror64(tmp, 40); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 52) | (tmp << (64 - 52)); + b3 = ror64(tmp, 52); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 57) | (tmp << (64 - 57)); + b1 = ror64(tmp, 57); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 14) | (tmp << (64 - 14)); + b1 = ror64(tmp, 14); b0 -= b1 + k2; b1 -= k3 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b2 -= b3 + k4 + t0; b3 -= k0 + 2; tmp = b3 ^ b0; - b3 = (tmp >> 32) | (tmp << (64 - 32)); + b3 = ror64(tmp, 32); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 32) | (tmp << (64 - 32)); + b1 = ror64(tmp, 32); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 58) | (tmp << (64 - 58)); + b1 = ror64(tmp, 58); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 46) | (tmp << (64 - 46)); + b3 = ror64(tmp, 46); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 12) | (tmp << (64 - 12)); + b1 = ror64(tmp, 12); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b0 -= b1 + k1; b1 -= k2 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 33) | (tmp << (64 - 33)); + b3 = ror64(tmp, 33); b2 -= b3 + k3 + t2; b3 -= k4 + 1; tmp = b3 ^ b0; - b3 = (tmp >> 5) | (tmp << (64 - 5)); + b3 = ror64(tmp, 5); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 37) | (tmp << (64 - 37)); + b1 = ror64(tmp, 37); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b0 -= b1; tmp = b3 ^ b2; - b3 = (tmp >> 40) | (tmp << (64 - 40)); + b3 = ror64(tmp, 40); b2 -= b3; tmp = b3 ^ b0; - b3 = (tmp >> 52) | (tmp << (64 - 52)); + b3 = ror64(tmp, 52); b0 -= b3; tmp = b1 ^ b2; - b1 = (tmp >> 57) | (tmp << (64 - 57)); + b1 = ror64(tmp, 57); b2 -= b1; tmp = b1 ^ b0; - b1 = (tmp >> 14) | (tmp << (64 - 14)); + b1 = ror64(tmp, 14); b0 -= b1 + k0; b1 -= k1 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b2 -= b3 + k2 + t1; b3 -= k3; @@ -2125,1226 +2125,1226 @@ void threefish_decrypt_512(struct threefish_key *key_ctx, u64 *input, b7 -= k7 + 18; tmp = b3 ^ b4; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 56) | (tmp << (64 - 56)); + b5 = ror64(tmp, 56); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 35) | (tmp << (64 - 35)); + b7 = ror64(tmp, 35); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 8) | (tmp << (64 - 8)); + b1 = ror64(tmp, 8); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 43) | (tmp << (64 - 43)); + b7 = ror64(tmp, 43); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 39) | (tmp << (64 - 39)); + b5 = ror64(tmp, 39); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 29) | (tmp << (64 - 29)); + b3 = ror64(tmp, 29); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 17) | (tmp << (64 - 17)); + b3 = ror64(tmp, 17); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 10) | (tmp << (64 - 10)); + b5 = ror64(tmp, 10); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 50) | (tmp << (64 - 50)); + b7 = ror64(tmp, 50); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 24) | (tmp << (64 - 24)); + b7 = ror64(tmp, 24); b6 -= b7 + k5 + t0; b7 -= k6 + 17; tmp = b5 ^ b4; - b5 = (tmp >> 34) | (tmp << (64 - 34)); + b5 = ror64(tmp, 34); b4 -= b5 + k3; b5 -= k4 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 30) | (tmp << (64 - 30)); + b3 = ror64(tmp, 30); b2 -= b3 + k1; b3 -= k2; tmp = b1 ^ b0; - b1 = (tmp >> 39) | (tmp << (64 - 39)); + b1 = ror64(tmp, 39); b0 -= b1 + k8; b1 -= k0; tmp = b3 ^ b4; - b3 = (tmp >> 56) | (tmp << (64 - 56)); + b3 = ror64(tmp, 56); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 54) | (tmp << (64 - 54)); + b5 = ror64(tmp, 54); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 9) | (tmp << (64 - 9)); + b7 = ror64(tmp, 9); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 44) | (tmp << (64 - 44)); + b1 = ror64(tmp, 44); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 39) | (tmp << (64 - 39)); + b7 = ror64(tmp, 39); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 36) | (tmp << (64 - 36)); + b5 = ror64(tmp, 36); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 49) | (tmp << (64 - 49)); + b3 = ror64(tmp, 49); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 17) | (tmp << (64 - 17)); + b1 = ror64(tmp, 17); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 42) | (tmp << (64 - 42)); + b3 = ror64(tmp, 42); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 14) | (tmp << (64 - 14)); + b5 = ror64(tmp, 14); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 27) | (tmp << (64 - 27)); + b7 = ror64(tmp, 27); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 33) | (tmp << (64 - 33)); + b1 = ror64(tmp, 33); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 37) | (tmp << (64 - 37)); + b7 = ror64(tmp, 37); b6 -= b7 + k4 + t2; b7 -= k5 + 16; tmp = b5 ^ b4; - b5 = (tmp >> 19) | (tmp << (64 - 19)); + b5 = ror64(tmp, 19); b4 -= b5 + k2; b5 -= k3 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 36) | (tmp << (64 - 36)); + b3 = ror64(tmp, 36); b2 -= b3 + k0; b3 -= k1; tmp = b1 ^ b0; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b0 -= b1 + k7; b1 -= k8; tmp = b3 ^ b4; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 56) | (tmp << (64 - 56)); + b5 = ror64(tmp, 56); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 35) | (tmp << (64 - 35)); + b7 = ror64(tmp, 35); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 8) | (tmp << (64 - 8)); + b1 = ror64(tmp, 8); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 43) | (tmp << (64 - 43)); + b7 = ror64(tmp, 43); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 39) | (tmp << (64 - 39)); + b5 = ror64(tmp, 39); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 29) | (tmp << (64 - 29)); + b3 = ror64(tmp, 29); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 17) | (tmp << (64 - 17)); + b3 = ror64(tmp, 17); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 10) | (tmp << (64 - 10)); + b5 = ror64(tmp, 10); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 50) | (tmp << (64 - 50)); + b7 = ror64(tmp, 50); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 24) | (tmp << (64 - 24)); + b7 = ror64(tmp, 24); b6 -= b7 + k3 + t1; b7 -= k4 + 15; tmp = b5 ^ b4; - b5 = (tmp >> 34) | (tmp << (64 - 34)); + b5 = ror64(tmp, 34); b4 -= b5 + k1; b5 -= k2 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 30) | (tmp << (64 - 30)); + b3 = ror64(tmp, 30); b2 -= b3 + k8; b3 -= k0; tmp = b1 ^ b0; - b1 = (tmp >> 39) | (tmp << (64 - 39)); + b1 = ror64(tmp, 39); b0 -= b1 + k6; b1 -= k7; tmp = b3 ^ b4; - b3 = (tmp >> 56) | (tmp << (64 - 56)); + b3 = ror64(tmp, 56); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 54) | (tmp << (64 - 54)); + b5 = ror64(tmp, 54); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 9) | (tmp << (64 - 9)); + b7 = ror64(tmp, 9); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 44) | (tmp << (64 - 44)); + b1 = ror64(tmp, 44); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 39) | (tmp << (64 - 39)); + b7 = ror64(tmp, 39); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 36) | (tmp << (64 - 36)); + b5 = ror64(tmp, 36); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 49) | (tmp << (64 - 49)); + b3 = ror64(tmp, 49); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 17) | (tmp << (64 - 17)); + b1 = ror64(tmp, 17); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 42) | (tmp << (64 - 42)); + b3 = ror64(tmp, 42); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 14) | (tmp << (64 - 14)); + b5 = ror64(tmp, 14); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 27) | (tmp << (64 - 27)); + b7 = ror64(tmp, 27); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 33) | (tmp << (64 - 33)); + b1 = ror64(tmp, 33); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 37) | (tmp << (64 - 37)); + b7 = ror64(tmp, 37); b6 -= b7 + k2 + t0; b7 -= k3 + 14; tmp = b5 ^ b4; - b5 = (tmp >> 19) | (tmp << (64 - 19)); + b5 = ror64(tmp, 19); b4 -= b5 + k0; b5 -= k1 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 36) | (tmp << (64 - 36)); + b3 = ror64(tmp, 36); b2 -= b3 + k7; b3 -= k8; tmp = b1 ^ b0; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b0 -= b1 + k5; b1 -= k6; tmp = b3 ^ b4; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 56) | (tmp << (64 - 56)); + b5 = ror64(tmp, 56); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 35) | (tmp << (64 - 35)); + b7 = ror64(tmp, 35); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 8) | (tmp << (64 - 8)); + b1 = ror64(tmp, 8); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 43) | (tmp << (64 - 43)); + b7 = ror64(tmp, 43); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 39) | (tmp << (64 - 39)); + b5 = ror64(tmp, 39); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 29) | (tmp << (64 - 29)); + b3 = ror64(tmp, 29); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 17) | (tmp << (64 - 17)); + b3 = ror64(tmp, 17); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 10) | (tmp << (64 - 10)); + b5 = ror64(tmp, 10); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 50) | (tmp << (64 - 50)); + b7 = ror64(tmp, 50); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 24) | (tmp << (64 - 24)); + b7 = ror64(tmp, 24); b6 -= b7 + k1 + t2; b7 -= k2 + 13; tmp = b5 ^ b4; - b5 = (tmp >> 34) | (tmp << (64 - 34)); + b5 = ror64(tmp, 34); b4 -= b5 + k8; b5 -= k0 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 30) | (tmp << (64 - 30)); + b3 = ror64(tmp, 30); b2 -= b3 + k6; b3 -= k7; tmp = b1 ^ b0; - b1 = (tmp >> 39) | (tmp << (64 - 39)); + b1 = ror64(tmp, 39); b0 -= b1 + k4; b1 -= k5; tmp = b3 ^ b4; - b3 = (tmp >> 56) | (tmp << (64 - 56)); + b3 = ror64(tmp, 56); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 54) | (tmp << (64 - 54)); + b5 = ror64(tmp, 54); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 9) | (tmp << (64 - 9)); + b7 = ror64(tmp, 9); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 44) | (tmp << (64 - 44)); + b1 = ror64(tmp, 44); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 39) | (tmp << (64 - 39)); + b7 = ror64(tmp, 39); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 36) | (tmp << (64 - 36)); + b5 = ror64(tmp, 36); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 49) | (tmp << (64 - 49)); + b3 = ror64(tmp, 49); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 17) | (tmp << (64 - 17)); + b1 = ror64(tmp, 17); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 42) | (tmp << (64 - 42)); + b3 = ror64(tmp, 42); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 14) | (tmp << (64 - 14)); + b5 = ror64(tmp, 14); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 27) | (tmp << (64 - 27)); + b7 = ror64(tmp, 27); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 33) | (tmp << (64 - 33)); + b1 = ror64(tmp, 33); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 37) | (tmp << (64 - 37)); + b7 = ror64(tmp, 37); b6 -= b7 + k0 + t1; b7 -= k1 + 12; tmp = b5 ^ b4; - b5 = (tmp >> 19) | (tmp << (64 - 19)); + b5 = ror64(tmp, 19); b4 -= b5 + k7; b5 -= k8 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 36) | (tmp << (64 - 36)); + b3 = ror64(tmp, 36); b2 -= b3 + k5; b3 -= k6; tmp = b1 ^ b0; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b0 -= b1 + k3; b1 -= k4; tmp = b3 ^ b4; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 56) | (tmp << (64 - 56)); + b5 = ror64(tmp, 56); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 35) | (tmp << (64 - 35)); + b7 = ror64(tmp, 35); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 8) | (tmp << (64 - 8)); + b1 = ror64(tmp, 8); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 43) | (tmp << (64 - 43)); + b7 = ror64(tmp, 43); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 39) | (tmp << (64 - 39)); + b5 = ror64(tmp, 39); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 29) | (tmp << (64 - 29)); + b3 = ror64(tmp, 29); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 17) | (tmp << (64 - 17)); + b3 = ror64(tmp, 17); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 10) | (tmp << (64 - 10)); + b5 = ror64(tmp, 10); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 50) | (tmp << (64 - 50)); + b7 = ror64(tmp, 50); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 24) | (tmp << (64 - 24)); + b7 = ror64(tmp, 24); b6 -= b7 + k8 + t0; b7 -= k0 + 11; tmp = b5 ^ b4; - b5 = (tmp >> 34) | (tmp << (64 - 34)); + b5 = ror64(tmp, 34); b4 -= b5 + k6; b5 -= k7 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 30) | (tmp << (64 - 30)); + b3 = ror64(tmp, 30); b2 -= b3 + k4; b3 -= k5; tmp = b1 ^ b0; - b1 = (tmp >> 39) | (tmp << (64 - 39)); + b1 = ror64(tmp, 39); b0 -= b1 + k2; b1 -= k3; tmp = b3 ^ b4; - b3 = (tmp >> 56) | (tmp << (64 - 56)); + b3 = ror64(tmp, 56); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 54) | (tmp << (64 - 54)); + b5 = ror64(tmp, 54); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 9) | (tmp << (64 - 9)); + b7 = ror64(tmp, 9); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 44) | (tmp << (64 - 44)); + b1 = ror64(tmp, 44); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 39) | (tmp << (64 - 39)); + b7 = ror64(tmp, 39); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 36) | (tmp << (64 - 36)); + b5 = ror64(tmp, 36); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 49) | (tmp << (64 - 49)); + b3 = ror64(tmp, 49); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 17) | (tmp << (64 - 17)); + b1 = ror64(tmp, 17); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 42) | (tmp << (64 - 42)); + b3 = ror64(tmp, 42); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 14) | (tmp << (64 - 14)); + b5 = ror64(tmp, 14); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 27) | (tmp << (64 - 27)); + b7 = ror64(tmp, 27); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 33) | (tmp << (64 - 33)); + b1 = ror64(tmp, 33); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 37) | (tmp << (64 - 37)); + b7 = ror64(tmp, 37); b6 -= b7 + k7 + t2; b7 -= k8 + 10; tmp = b5 ^ b4; - b5 = (tmp >> 19) | (tmp << (64 - 19)); + b5 = ror64(tmp, 19); b4 -= b5 + k5; b5 -= k6 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 36) | (tmp << (64 - 36)); + b3 = ror64(tmp, 36); b2 -= b3 + k3; b3 -= k4; tmp = b1 ^ b0; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b0 -= b1 + k1; b1 -= k2; tmp = b3 ^ b4; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 56) | (tmp << (64 - 56)); + b5 = ror64(tmp, 56); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 35) | (tmp << (64 - 35)); + b7 = ror64(tmp, 35); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 8) | (tmp << (64 - 8)); + b1 = ror64(tmp, 8); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 43) | (tmp << (64 - 43)); + b7 = ror64(tmp, 43); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 39) | (tmp << (64 - 39)); + b5 = ror64(tmp, 39); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 29) | (tmp << (64 - 29)); + b3 = ror64(tmp, 29); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 17) | (tmp << (64 - 17)); + b3 = ror64(tmp, 17); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 10) | (tmp << (64 - 10)); + b5 = ror64(tmp, 10); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 50) | (tmp << (64 - 50)); + b7 = ror64(tmp, 50); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 24) | (tmp << (64 - 24)); + b7 = ror64(tmp, 24); b6 -= b7 + k6 + t1; b7 -= k7 + 9; tmp = b5 ^ b4; - b5 = (tmp >> 34) | (tmp << (64 - 34)); + b5 = ror64(tmp, 34); b4 -= b5 + k4; b5 -= k5 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 30) | (tmp << (64 - 30)); + b3 = ror64(tmp, 30); b2 -= b3 + k2; b3 -= k3; tmp = b1 ^ b0; - b1 = (tmp >> 39) | (tmp << (64 - 39)); + b1 = ror64(tmp, 39); b0 -= b1 + k0; b1 -= k1; tmp = b3 ^ b4; - b3 = (tmp >> 56) | (tmp << (64 - 56)); + b3 = ror64(tmp, 56); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 54) | (tmp << (64 - 54)); + b5 = ror64(tmp, 54); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 9) | (tmp << (64 - 9)); + b7 = ror64(tmp, 9); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 44) | (tmp << (64 - 44)); + b1 = ror64(tmp, 44); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 39) | (tmp << (64 - 39)); + b7 = ror64(tmp, 39); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 36) | (tmp << (64 - 36)); + b5 = ror64(tmp, 36); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 49) | (tmp << (64 - 49)); + b3 = ror64(tmp, 49); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 17) | (tmp << (64 - 17)); + b1 = ror64(tmp, 17); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 42) | (tmp << (64 - 42)); + b3 = ror64(tmp, 42); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 14) | (tmp << (64 - 14)); + b5 = ror64(tmp, 14); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 27) | (tmp << (64 - 27)); + b7 = ror64(tmp, 27); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 33) | (tmp << (64 - 33)); + b1 = ror64(tmp, 33); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 37) | (tmp << (64 - 37)); + b7 = ror64(tmp, 37); b6 -= b7 + k5 + t0; b7 -= k6 + 8; tmp = b5 ^ b4; - b5 = (tmp >> 19) | (tmp << (64 - 19)); + b5 = ror64(tmp, 19); b4 -= b5 + k3; b5 -= k4 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 36) | (tmp << (64 - 36)); + b3 = ror64(tmp, 36); b2 -= b3 + k1; b3 -= k2; tmp = b1 ^ b0; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b0 -= b1 + k8; b1 -= k0; tmp = b3 ^ b4; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 56) | (tmp << (64 - 56)); + b5 = ror64(tmp, 56); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 35) | (tmp << (64 - 35)); + b7 = ror64(tmp, 35); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 8) | (tmp << (64 - 8)); + b1 = ror64(tmp, 8); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 43) | (tmp << (64 - 43)); + b7 = ror64(tmp, 43); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 39) | (tmp << (64 - 39)); + b5 = ror64(tmp, 39); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 29) | (tmp << (64 - 29)); + b3 = ror64(tmp, 29); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 17) | (tmp << (64 - 17)); + b3 = ror64(tmp, 17); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 10) | (tmp << (64 - 10)); + b5 = ror64(tmp, 10); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 50) | (tmp << (64 - 50)); + b7 = ror64(tmp, 50); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 24) | (tmp << (64 - 24)); + b7 = ror64(tmp, 24); b6 -= b7 + k4 + t2; b7 -= k5 + 7; tmp = b5 ^ b4; - b5 = (tmp >> 34) | (tmp << (64 - 34)); + b5 = ror64(tmp, 34); b4 -= b5 + k2; b5 -= k3 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 30) | (tmp << (64 - 30)); + b3 = ror64(tmp, 30); b2 -= b3 + k0; b3 -= k1; tmp = b1 ^ b0; - b1 = (tmp >> 39) | (tmp << (64 - 39)); + b1 = ror64(tmp, 39); b0 -= b1 + k7; b1 -= k8; tmp = b3 ^ b4; - b3 = (tmp >> 56) | (tmp << (64 - 56)); + b3 = ror64(tmp, 56); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 54) | (tmp << (64 - 54)); + b5 = ror64(tmp, 54); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 9) | (tmp << (64 - 9)); + b7 = ror64(tmp, 9); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 44) | (tmp << (64 - 44)); + b1 = ror64(tmp, 44); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 39) | (tmp << (64 - 39)); + b7 = ror64(tmp, 39); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 36) | (tmp << (64 - 36)); + b5 = ror64(tmp, 36); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 49) | (tmp << (64 - 49)); + b3 = ror64(tmp, 49); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 17) | (tmp << (64 - 17)); + b1 = ror64(tmp, 17); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 42) | (tmp << (64 - 42)); + b3 = ror64(tmp, 42); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 14) | (tmp << (64 - 14)); + b5 = ror64(tmp, 14); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 27) | (tmp << (64 - 27)); + b7 = ror64(tmp, 27); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 33) | (tmp << (64 - 33)); + b1 = ror64(tmp, 33); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 37) | (tmp << (64 - 37)); + b7 = ror64(tmp, 37); b6 -= b7 + k3 + t1; b7 -= k4 + 6; tmp = b5 ^ b4; - b5 = (tmp >> 19) | (tmp << (64 - 19)); + b5 = ror64(tmp, 19); b4 -= b5 + k1; b5 -= k2 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 36) | (tmp << (64 - 36)); + b3 = ror64(tmp, 36); b2 -= b3 + k8; b3 -= k0; tmp = b1 ^ b0; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b0 -= b1 + k6; b1 -= k7; tmp = b3 ^ b4; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 56) | (tmp << (64 - 56)); + b5 = ror64(tmp, 56); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 35) | (tmp << (64 - 35)); + b7 = ror64(tmp, 35); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 8) | (tmp << (64 - 8)); + b1 = ror64(tmp, 8); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 43) | (tmp << (64 - 43)); + b7 = ror64(tmp, 43); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 39) | (tmp << (64 - 39)); + b5 = ror64(tmp, 39); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 29) | (tmp << (64 - 29)); + b3 = ror64(tmp, 29); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 17) | (tmp << (64 - 17)); + b3 = ror64(tmp, 17); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 10) | (tmp << (64 - 10)); + b5 = ror64(tmp, 10); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 50) | (tmp << (64 - 50)); + b7 = ror64(tmp, 50); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 24) | (tmp << (64 - 24)); + b7 = ror64(tmp, 24); b6 -= b7 + k2 + t0; b7 -= k3 + 5; tmp = b5 ^ b4; - b5 = (tmp >> 34) | (tmp << (64 - 34)); + b5 = ror64(tmp, 34); b4 -= b5 + k0; b5 -= k1 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 30) | (tmp << (64 - 30)); + b3 = ror64(tmp, 30); b2 -= b3 + k7; b3 -= k8; tmp = b1 ^ b0; - b1 = (tmp >> 39) | (tmp << (64 - 39)); + b1 = ror64(tmp, 39); b0 -= b1 + k5; b1 -= k6; tmp = b3 ^ b4; - b3 = (tmp >> 56) | (tmp << (64 - 56)); + b3 = ror64(tmp, 56); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 54) | (tmp << (64 - 54)); + b5 = ror64(tmp, 54); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 9) | (tmp << (64 - 9)); + b7 = ror64(tmp, 9); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 44) | (tmp << (64 - 44)); + b1 = ror64(tmp, 44); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 39) | (tmp << (64 - 39)); + b7 = ror64(tmp, 39); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 36) | (tmp << (64 - 36)); + b5 = ror64(tmp, 36); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 49) | (tmp << (64 - 49)); + b3 = ror64(tmp, 49); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 17) | (tmp << (64 - 17)); + b1 = ror64(tmp, 17); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 42) | (tmp << (64 - 42)); + b3 = ror64(tmp, 42); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 14) | (tmp << (64 - 14)); + b5 = ror64(tmp, 14); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 27) | (tmp << (64 - 27)); + b7 = ror64(tmp, 27); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 33) | (tmp << (64 - 33)); + b1 = ror64(tmp, 33); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 37) | (tmp << (64 - 37)); + b7 = ror64(tmp, 37); b6 -= b7 + k1 + t2; b7 -= k2 + 4; tmp = b5 ^ b4; - b5 = (tmp >> 19) | (tmp << (64 - 19)); + b5 = ror64(tmp, 19); b4 -= b5 + k8; b5 -= k0 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 36) | (tmp << (64 - 36)); + b3 = ror64(tmp, 36); b2 -= b3 + k6; b3 -= k7; tmp = b1 ^ b0; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b0 -= b1 + k4; b1 -= k5; tmp = b3 ^ b4; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 56) | (tmp << (64 - 56)); + b5 = ror64(tmp, 56); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 35) | (tmp << (64 - 35)); + b7 = ror64(tmp, 35); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 8) | (tmp << (64 - 8)); + b1 = ror64(tmp, 8); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 43) | (tmp << (64 - 43)); + b7 = ror64(tmp, 43); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 39) | (tmp << (64 - 39)); + b5 = ror64(tmp, 39); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 29) | (tmp << (64 - 29)); + b3 = ror64(tmp, 29); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 17) | (tmp << (64 - 17)); + b3 = ror64(tmp, 17); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 10) | (tmp << (64 - 10)); + b5 = ror64(tmp, 10); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 50) | (tmp << (64 - 50)); + b7 = ror64(tmp, 50); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 24) | (tmp << (64 - 24)); + b7 = ror64(tmp, 24); b6 -= b7 + k0 + t1; b7 -= k1 + 3; tmp = b5 ^ b4; - b5 = (tmp >> 34) | (tmp << (64 - 34)); + b5 = ror64(tmp, 34); b4 -= b5 + k7; b5 -= k8 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 30) | (tmp << (64 - 30)); + b3 = ror64(tmp, 30); b2 -= b3 + k5; b3 -= k6; tmp = b1 ^ b0; - b1 = (tmp >> 39) | (tmp << (64 - 39)); + b1 = ror64(tmp, 39); b0 -= b1 + k3; b1 -= k4; tmp = b3 ^ b4; - b3 = (tmp >> 56) | (tmp << (64 - 56)); + b3 = ror64(tmp, 56); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 54) | (tmp << (64 - 54)); + b5 = ror64(tmp, 54); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 9) | (tmp << (64 - 9)); + b7 = ror64(tmp, 9); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 44) | (tmp << (64 - 44)); + b1 = ror64(tmp, 44); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 39) | (tmp << (64 - 39)); + b7 = ror64(tmp, 39); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 36) | (tmp << (64 - 36)); + b5 = ror64(tmp, 36); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 49) | (tmp << (64 - 49)); + b3 = ror64(tmp, 49); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 17) | (tmp << (64 - 17)); + b1 = ror64(tmp, 17); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 42) | (tmp << (64 - 42)); + b3 = ror64(tmp, 42); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 14) | (tmp << (64 - 14)); + b5 = ror64(tmp, 14); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 27) | (tmp << (64 - 27)); + b7 = ror64(tmp, 27); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 33) | (tmp << (64 - 33)); + b1 = ror64(tmp, 33); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 37) | (tmp << (64 - 37)); + b7 = ror64(tmp, 37); b6 -= b7 + k8 + t0; b7 -= k0 + 2; tmp = b5 ^ b4; - b5 = (tmp >> 19) | (tmp << (64 - 19)); + b5 = ror64(tmp, 19); b4 -= b5 + k6; b5 -= k7 + t2; tmp = b3 ^ b2; - b3 = (tmp >> 36) | (tmp << (64 - 36)); + b3 = ror64(tmp, 36); b2 -= b3 + k4; b3 -= k5; tmp = b1 ^ b0; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b0 -= b1 + k2; b1 -= k3; tmp = b3 ^ b4; - b3 = (tmp >> 22) | (tmp << (64 - 22)); + b3 = ror64(tmp, 22); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 56) | (tmp << (64 - 56)); + b5 = ror64(tmp, 56); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 35) | (tmp << (64 - 35)); + b7 = ror64(tmp, 35); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 8) | (tmp << (64 - 8)); + b1 = ror64(tmp, 8); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 43) | (tmp << (64 - 43)); + b7 = ror64(tmp, 43); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 39) | (tmp << (64 - 39)); + b5 = ror64(tmp, 39); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 29) | (tmp << (64 - 29)); + b3 = ror64(tmp, 29); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 25) | (tmp << (64 - 25)); + b1 = ror64(tmp, 25); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 17) | (tmp << (64 - 17)); + b3 = ror64(tmp, 17); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 10) | (tmp << (64 - 10)); + b5 = ror64(tmp, 10); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 50) | (tmp << (64 - 50)); + b7 = ror64(tmp, 50); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 24) | (tmp << (64 - 24)); + b7 = ror64(tmp, 24); b6 -= b7 + k7 + t2; b7 -= k8 + 1; tmp = b5 ^ b4; - b5 = (tmp >> 34) | (tmp << (64 - 34)); + b5 = ror64(tmp, 34); b4 -= b5 + k5; b5 -= k6 + t1; tmp = b3 ^ b2; - b3 = (tmp >> 30) | (tmp << (64 - 30)); + b3 = ror64(tmp, 30); b2 -= b3 + k3; b3 -= k4; tmp = b1 ^ b0; - b1 = (tmp >> 39) | (tmp << (64 - 39)); + b1 = ror64(tmp, 39); b0 -= b1 + k1; b1 -= k2; tmp = b3 ^ b4; - b3 = (tmp >> 56) | (tmp << (64 - 56)); + b3 = ror64(tmp, 56); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 54) | (tmp << (64 - 54)); + b5 = ror64(tmp, 54); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 9) | (tmp << (64 - 9)); + b7 = ror64(tmp, 9); b0 -= b7; tmp = b1 ^ b6; - b1 = (tmp >> 44) | (tmp << (64 - 44)); + b1 = ror64(tmp, 44); b6 -= b1; tmp = b7 ^ b2; - b7 = (tmp >> 39) | (tmp << (64 - 39)); + b7 = ror64(tmp, 39); b2 -= b7; tmp = b5 ^ b0; - b5 = (tmp >> 36) | (tmp << (64 - 36)); + b5 = ror64(tmp, 36); b0 -= b5; tmp = b3 ^ b6; - b3 = (tmp >> 49) | (tmp << (64 - 49)); + b3 = ror64(tmp, 49); b6 -= b3; tmp = b1 ^ b4; - b1 = (tmp >> 17) | (tmp << (64 - 17)); + b1 = ror64(tmp, 17); b4 -= b1; tmp = b3 ^ b0; - b3 = (tmp >> 42) | (tmp << (64 - 42)); + b3 = ror64(tmp, 42); b0 -= b3; tmp = b5 ^ b6; - b5 = (tmp >> 14) | (tmp << (64 - 14)); + b5 = ror64(tmp, 14); b6 -= b5; tmp = b7 ^ b4; - b7 = (tmp >> 27) | (tmp << (64 - 27)); + b7 = ror64(tmp, 27); b4 -= b7; tmp = b1 ^ b2; - b1 = (tmp >> 33) | (tmp << (64 - 33)); + b1 = ror64(tmp, 33); b2 -= b1; tmp = b7 ^ b6; - b7 = (tmp >> 37) | (tmp << (64 - 37)); + b7 = ror64(tmp, 37); b6 -= b7 + k6 + t1; b7 -= k7; tmp = b5 ^ b4; - b5 = (tmp >> 19) | (tmp << (64 - 19)); + b5 = ror64(tmp, 19); b4 -= b5 + k4; b5 -= k5 + t0; tmp = b3 ^ b2; - b3 = (tmp >> 36) | (tmp << (64 - 36)); + b3 = ror64(tmp, 36); b2 -= b3 + k2; b3 -= k3; tmp = b1 ^ b0; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b0 -= b1 + k0; b1 -= k1; @@ -5521,2722 +5521,2722 @@ void threefish_decrypt_1024(struct threefish_key *key_ctx, u64 *input, b14 -= k0 + t0; b15 -= k1 + 20; tmp = b7 ^ b12; - b7 = (tmp >> 20) | (tmp << (64 - 20)); + b7 = ror64(tmp, 20); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 37) | (tmp << (64 - 37)); + b3 = ror64(tmp, 37); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 31) | (tmp << (64 - 31)); + b5 = ror64(tmp, 31); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 52) | (tmp << (64 - 52)); + b9 = ror64(tmp, 52); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 35) | (tmp << (64 - 35)); + b13 = ror64(tmp, 35); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 48) | (tmp << (64 - 48)); + b11 = ror64(tmp, 48); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 9) | (tmp << (64 - 9)); + b15 = ror64(tmp, 9); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 25) | (tmp << (64 - 25)); + b9 = ror64(tmp, 25); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 44) | (tmp << (64 - 44)); + b11 = ror64(tmp, 44); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 42) | (tmp << (64 - 42)); + b13 = ror64(tmp, 42); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 19) | (tmp << (64 - 19)); + b15 = ror64(tmp, 19); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 47) | (tmp << (64 - 47)); + b3 = ror64(tmp, 47); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 44) | (tmp << (64 - 44)); + b5 = ror64(tmp, 44); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 42) | (tmp << (64 - 42)); + b5 = ror64(tmp, 42); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 53) | (tmp << (64 - 53)); + b3 = ror64(tmp, 53); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 4) | (tmp << (64 - 4)); + b7 = ror64(tmp, 4); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 51) | (tmp << (64 - 51)); + b15 = ror64(tmp, 51); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 56) | (tmp << (64 - 56)); + b11 = ror64(tmp, 56); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 34) | (tmp << (64 - 34)); + b13 = ror64(tmp, 34); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 16) | (tmp << (64 - 16)); + b9 = ror64(tmp, 16); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 30) | (tmp << (64 - 30)); + b15 = ror64(tmp, 30); b14 -= b15 + k16 + t2; b15 -= k0 + 19; tmp = b13 ^ b12; - b13 = (tmp >> 44) | (tmp << (64 - 44)); + b13 = ror64(tmp, 44); b12 -= b13 + k14; b13 -= k15 + t1; tmp = b11 ^ b10; - b11 = (tmp >> 47) | (tmp << (64 - 47)); + b11 = ror64(tmp, 47); b10 -= b11 + k12; b11 -= k13; tmp = b9 ^ b8; - b9 = (tmp >> 12) | (tmp << (64 - 12)); + b9 = ror64(tmp, 12); b8 -= b9 + k10; b9 -= k11; tmp = b7 ^ b6; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b6 -= b7 + k8; b7 -= k9; tmp = b5 ^ b4; - b5 = (tmp >> 37) | (tmp << (64 - 37)); + b5 = ror64(tmp, 37); b4 -= b5 + k6; b5 -= k7; tmp = b3 ^ b2; - b3 = (tmp >> 9) | (tmp << (64 - 9)); + b3 = ror64(tmp, 9); b2 -= b3 + k4; b3 -= k5; tmp = b1 ^ b0; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b0 -= b1 + k2; b1 -= k3; tmp = b7 ^ b12; - b7 = (tmp >> 25) | (tmp << (64 - 25)); + b7 = ror64(tmp, 25); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 28) | (tmp << (64 - 28)); + b5 = ror64(tmp, 28); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 47) | (tmp << (64 - 47)); + b1 = ror64(tmp, 47); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 41) | (tmp << (64 - 41)); + b9 = ror64(tmp, 41); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 48) | (tmp << (64 - 48)); + b13 = ror64(tmp, 48); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 20) | (tmp << (64 - 20)); + b11 = ror64(tmp, 20); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 5) | (tmp << (64 - 5)); + b15 = ror64(tmp, 5); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 17) | (tmp << (64 - 17)); + b9 = ror64(tmp, 17); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 59) | (tmp << (64 - 59)); + b11 = ror64(tmp, 59); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 41) | (tmp << (64 - 41)); + b13 = ror64(tmp, 41); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 34) | (tmp << (64 - 34)); + b15 = ror64(tmp, 34); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 51) | (tmp << (64 - 51)); + b3 = ror64(tmp, 51); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 4) | (tmp << (64 - 4)); + b5 = ror64(tmp, 4); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 33) | (tmp << (64 - 33)); + b7 = ror64(tmp, 33); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 52) | (tmp << (64 - 52)); + b1 = ror64(tmp, 52); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 23) | (tmp << (64 - 23)); + b5 = ror64(tmp, 23); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 18) | (tmp << (64 - 18)); + b3 = ror64(tmp, 18); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 49) | (tmp << (64 - 49)); + b7 = ror64(tmp, 49); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 55) | (tmp << (64 - 55)); + b15 = ror64(tmp, 55); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 10) | (tmp << (64 - 10)); + b11 = ror64(tmp, 10); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 19) | (tmp << (64 - 19)); + b13 = ror64(tmp, 19); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 38) | (tmp << (64 - 38)); + b9 = ror64(tmp, 38); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 37) | (tmp << (64 - 37)); + b15 = ror64(tmp, 37); b14 -= b15 + k15 + t1; b15 -= k16 + 18; tmp = b13 ^ b12; - b13 = (tmp >> 22) | (tmp << (64 - 22)); + b13 = ror64(tmp, 22); b12 -= b13 + k13; b13 -= k14 + t0; tmp = b11 ^ b10; - b11 = (tmp >> 17) | (tmp << (64 - 17)); + b11 = ror64(tmp, 17); b10 -= b11 + k11; b11 -= k12; tmp = b9 ^ b8; - b9 = (tmp >> 8) | (tmp << (64 - 8)); + b9 = ror64(tmp, 8); b8 -= b9 + k9; b9 -= k10; tmp = b7 ^ b6; - b7 = (tmp >> 47) | (tmp << (64 - 47)); + b7 = ror64(tmp, 47); b6 -= b7 + k7; b7 -= k8; tmp = b5 ^ b4; - b5 = (tmp >> 8) | (tmp << (64 - 8)); + b5 = ror64(tmp, 8); b4 -= b5 + k5; b5 -= k6; tmp = b3 ^ b2; - b3 = (tmp >> 13) | (tmp << (64 - 13)); + b3 = ror64(tmp, 13); b2 -= b3 + k3; b3 -= k4; tmp = b1 ^ b0; - b1 = (tmp >> 24) | (tmp << (64 - 24)); + b1 = ror64(tmp, 24); b0 -= b1 + k1; b1 -= k2; tmp = b7 ^ b12; - b7 = (tmp >> 20) | (tmp << (64 - 20)); + b7 = ror64(tmp, 20); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 37) | (tmp << (64 - 37)); + b3 = ror64(tmp, 37); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 31) | (tmp << (64 - 31)); + b5 = ror64(tmp, 31); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 52) | (tmp << (64 - 52)); + b9 = ror64(tmp, 52); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 35) | (tmp << (64 - 35)); + b13 = ror64(tmp, 35); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 48) | (tmp << (64 - 48)); + b11 = ror64(tmp, 48); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 9) | (tmp << (64 - 9)); + b15 = ror64(tmp, 9); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 25) | (tmp << (64 - 25)); + b9 = ror64(tmp, 25); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 44) | (tmp << (64 - 44)); + b11 = ror64(tmp, 44); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 42) | (tmp << (64 - 42)); + b13 = ror64(tmp, 42); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 19) | (tmp << (64 - 19)); + b15 = ror64(tmp, 19); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 47) | (tmp << (64 - 47)); + b3 = ror64(tmp, 47); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 44) | (tmp << (64 - 44)); + b5 = ror64(tmp, 44); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 42) | (tmp << (64 - 42)); + b5 = ror64(tmp, 42); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 53) | (tmp << (64 - 53)); + b3 = ror64(tmp, 53); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 4) | (tmp << (64 - 4)); + b7 = ror64(tmp, 4); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 51) | (tmp << (64 - 51)); + b15 = ror64(tmp, 51); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 56) | (tmp << (64 - 56)); + b11 = ror64(tmp, 56); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 34) | (tmp << (64 - 34)); + b13 = ror64(tmp, 34); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 16) | (tmp << (64 - 16)); + b9 = ror64(tmp, 16); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 30) | (tmp << (64 - 30)); + b15 = ror64(tmp, 30); b14 -= b15 + k14 + t0; b15 -= k15 + 17; tmp = b13 ^ b12; - b13 = (tmp >> 44) | (tmp << (64 - 44)); + b13 = ror64(tmp, 44); b12 -= b13 + k12; b13 -= k13 + t2; tmp = b11 ^ b10; - b11 = (tmp >> 47) | (tmp << (64 - 47)); + b11 = ror64(tmp, 47); b10 -= b11 + k10; b11 -= k11; tmp = b9 ^ b8; - b9 = (tmp >> 12) | (tmp << (64 - 12)); + b9 = ror64(tmp, 12); b8 -= b9 + k8; b9 -= k9; tmp = b7 ^ b6; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b6 -= b7 + k6; b7 -= k7; tmp = b5 ^ b4; - b5 = (tmp >> 37) | (tmp << (64 - 37)); + b5 = ror64(tmp, 37); b4 -= b5 + k4; b5 -= k5; tmp = b3 ^ b2; - b3 = (tmp >> 9) | (tmp << (64 - 9)); + b3 = ror64(tmp, 9); b2 -= b3 + k2; b3 -= k3; tmp = b1 ^ b0; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b0 -= b1 + k0; b1 -= k1; tmp = b7 ^ b12; - b7 = (tmp >> 25) | (tmp << (64 - 25)); + b7 = ror64(tmp, 25); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 28) | (tmp << (64 - 28)); + b5 = ror64(tmp, 28); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 47) | (tmp << (64 - 47)); + b1 = ror64(tmp, 47); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 41) | (tmp << (64 - 41)); + b9 = ror64(tmp, 41); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 48) | (tmp << (64 - 48)); + b13 = ror64(tmp, 48); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 20) | (tmp << (64 - 20)); + b11 = ror64(tmp, 20); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 5) | (tmp << (64 - 5)); + b15 = ror64(tmp, 5); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 17) | (tmp << (64 - 17)); + b9 = ror64(tmp, 17); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 59) | (tmp << (64 - 59)); + b11 = ror64(tmp, 59); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 41) | (tmp << (64 - 41)); + b13 = ror64(tmp, 41); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 34) | (tmp << (64 - 34)); + b15 = ror64(tmp, 34); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 51) | (tmp << (64 - 51)); + b3 = ror64(tmp, 51); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 4) | (tmp << (64 - 4)); + b5 = ror64(tmp, 4); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 33) | (tmp << (64 - 33)); + b7 = ror64(tmp, 33); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 52) | (tmp << (64 - 52)); + b1 = ror64(tmp, 52); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 23) | (tmp << (64 - 23)); + b5 = ror64(tmp, 23); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 18) | (tmp << (64 - 18)); + b3 = ror64(tmp, 18); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 49) | (tmp << (64 - 49)); + b7 = ror64(tmp, 49); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 55) | (tmp << (64 - 55)); + b15 = ror64(tmp, 55); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 10) | (tmp << (64 - 10)); + b11 = ror64(tmp, 10); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 19) | (tmp << (64 - 19)); + b13 = ror64(tmp, 19); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 38) | (tmp << (64 - 38)); + b9 = ror64(tmp, 38); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 37) | (tmp << (64 - 37)); + b15 = ror64(tmp, 37); b14 -= b15 + k13 + t2; b15 -= k14 + 16; tmp = b13 ^ b12; - b13 = (tmp >> 22) | (tmp << (64 - 22)); + b13 = ror64(tmp, 22); b12 -= b13 + k11; b13 -= k12 + t1; tmp = b11 ^ b10; - b11 = (tmp >> 17) | (tmp << (64 - 17)); + b11 = ror64(tmp, 17); b10 -= b11 + k9; b11 -= k10; tmp = b9 ^ b8; - b9 = (tmp >> 8) | (tmp << (64 - 8)); + b9 = ror64(tmp, 8); b8 -= b9 + k7; b9 -= k8; tmp = b7 ^ b6; - b7 = (tmp >> 47) | (tmp << (64 - 47)); + b7 = ror64(tmp, 47); b6 -= b7 + k5; b7 -= k6; tmp = b5 ^ b4; - b5 = (tmp >> 8) | (tmp << (64 - 8)); + b5 = ror64(tmp, 8); b4 -= b5 + k3; b5 -= k4; tmp = b3 ^ b2; - b3 = (tmp >> 13) | (tmp << (64 - 13)); + b3 = ror64(tmp, 13); b2 -= b3 + k1; b3 -= k2; tmp = b1 ^ b0; - b1 = (tmp >> 24) | (tmp << (64 - 24)); + b1 = ror64(tmp, 24); b0 -= b1 + k16; b1 -= k0; tmp = b7 ^ b12; - b7 = (tmp >> 20) | (tmp << (64 - 20)); + b7 = ror64(tmp, 20); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 37) | (tmp << (64 - 37)); + b3 = ror64(tmp, 37); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 31) | (tmp << (64 - 31)); + b5 = ror64(tmp, 31); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 52) | (tmp << (64 - 52)); + b9 = ror64(tmp, 52); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 35) | (tmp << (64 - 35)); + b13 = ror64(tmp, 35); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 48) | (tmp << (64 - 48)); + b11 = ror64(tmp, 48); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 9) | (tmp << (64 - 9)); + b15 = ror64(tmp, 9); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 25) | (tmp << (64 - 25)); + b9 = ror64(tmp, 25); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 44) | (tmp << (64 - 44)); + b11 = ror64(tmp, 44); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 42) | (tmp << (64 - 42)); + b13 = ror64(tmp, 42); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 19) | (tmp << (64 - 19)); + b15 = ror64(tmp, 19); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 47) | (tmp << (64 - 47)); + b3 = ror64(tmp, 47); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 44) | (tmp << (64 - 44)); + b5 = ror64(tmp, 44); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 42) | (tmp << (64 - 42)); + b5 = ror64(tmp, 42); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 53) | (tmp << (64 - 53)); + b3 = ror64(tmp, 53); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 4) | (tmp << (64 - 4)); + b7 = ror64(tmp, 4); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 51) | (tmp << (64 - 51)); + b15 = ror64(tmp, 51); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 56) | (tmp << (64 - 56)); + b11 = ror64(tmp, 56); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 34) | (tmp << (64 - 34)); + b13 = ror64(tmp, 34); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 16) | (tmp << (64 - 16)); + b9 = ror64(tmp, 16); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 30) | (tmp << (64 - 30)); + b15 = ror64(tmp, 30); b14 -= b15 + k12 + t1; b15 -= k13 + 15; tmp = b13 ^ b12; - b13 = (tmp >> 44) | (tmp << (64 - 44)); + b13 = ror64(tmp, 44); b12 -= b13 + k10; b13 -= k11 + t0; tmp = b11 ^ b10; - b11 = (tmp >> 47) | (tmp << (64 - 47)); + b11 = ror64(tmp, 47); b10 -= b11 + k8; b11 -= k9; tmp = b9 ^ b8; - b9 = (tmp >> 12) | (tmp << (64 - 12)); + b9 = ror64(tmp, 12); b8 -= b9 + k6; b9 -= k7; tmp = b7 ^ b6; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b6 -= b7 + k4; b7 -= k5; tmp = b5 ^ b4; - b5 = (tmp >> 37) | (tmp << (64 - 37)); + b5 = ror64(tmp, 37); b4 -= b5 + k2; b5 -= k3; tmp = b3 ^ b2; - b3 = (tmp >> 9) | (tmp << (64 - 9)); + b3 = ror64(tmp, 9); b2 -= b3 + k0; b3 -= k1; tmp = b1 ^ b0; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b0 -= b1 + k15; b1 -= k16; tmp = b7 ^ b12; - b7 = (tmp >> 25) | (tmp << (64 - 25)); + b7 = ror64(tmp, 25); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 28) | (tmp << (64 - 28)); + b5 = ror64(tmp, 28); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 47) | (tmp << (64 - 47)); + b1 = ror64(tmp, 47); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 41) | (tmp << (64 - 41)); + b9 = ror64(tmp, 41); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 48) | (tmp << (64 - 48)); + b13 = ror64(tmp, 48); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 20) | (tmp << (64 - 20)); + b11 = ror64(tmp, 20); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 5) | (tmp << (64 - 5)); + b15 = ror64(tmp, 5); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 17) | (tmp << (64 - 17)); + b9 = ror64(tmp, 17); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 59) | (tmp << (64 - 59)); + b11 = ror64(tmp, 59); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 41) | (tmp << (64 - 41)); + b13 = ror64(tmp, 41); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 34) | (tmp << (64 - 34)); + b15 = ror64(tmp, 34); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 51) | (tmp << (64 - 51)); + b3 = ror64(tmp, 51); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 4) | (tmp << (64 - 4)); + b5 = ror64(tmp, 4); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 33) | (tmp << (64 - 33)); + b7 = ror64(tmp, 33); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 52) | (tmp << (64 - 52)); + b1 = ror64(tmp, 52); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 23) | (tmp << (64 - 23)); + b5 = ror64(tmp, 23); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 18) | (tmp << (64 - 18)); + b3 = ror64(tmp, 18); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 49) | (tmp << (64 - 49)); + b7 = ror64(tmp, 49); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 55) | (tmp << (64 - 55)); + b15 = ror64(tmp, 55); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 10) | (tmp << (64 - 10)); + b11 = ror64(tmp, 10); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 19) | (tmp << (64 - 19)); + b13 = ror64(tmp, 19); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 38) | (tmp << (64 - 38)); + b9 = ror64(tmp, 38); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 37) | (tmp << (64 - 37)); + b15 = ror64(tmp, 37); b14 -= b15 + k11 + t0; b15 -= k12 + 14; tmp = b13 ^ b12; - b13 = (tmp >> 22) | (tmp << (64 - 22)); + b13 = ror64(tmp, 22); b12 -= b13 + k9; b13 -= k10 + t2; tmp = b11 ^ b10; - b11 = (tmp >> 17) | (tmp << (64 - 17)); + b11 = ror64(tmp, 17); b10 -= b11 + k7; b11 -= k8; tmp = b9 ^ b8; - b9 = (tmp >> 8) | (tmp << (64 - 8)); + b9 = ror64(tmp, 8); b8 -= b9 + k5; b9 -= k6; tmp = b7 ^ b6; - b7 = (tmp >> 47) | (tmp << (64 - 47)); + b7 = ror64(tmp, 47); b6 -= b7 + k3; b7 -= k4; tmp = b5 ^ b4; - b5 = (tmp >> 8) | (tmp << (64 - 8)); + b5 = ror64(tmp, 8); b4 -= b5 + k1; b5 -= k2; tmp = b3 ^ b2; - b3 = (tmp >> 13) | (tmp << (64 - 13)); + b3 = ror64(tmp, 13); b2 -= b3 + k16; b3 -= k0; tmp = b1 ^ b0; - b1 = (tmp >> 24) | (tmp << (64 - 24)); + b1 = ror64(tmp, 24); b0 -= b1 + k14; b1 -= k15; tmp = b7 ^ b12; - b7 = (tmp >> 20) | (tmp << (64 - 20)); + b7 = ror64(tmp, 20); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 37) | (tmp << (64 - 37)); + b3 = ror64(tmp, 37); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 31) | (tmp << (64 - 31)); + b5 = ror64(tmp, 31); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 52) | (tmp << (64 - 52)); + b9 = ror64(tmp, 52); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 35) | (tmp << (64 - 35)); + b13 = ror64(tmp, 35); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 48) | (tmp << (64 - 48)); + b11 = ror64(tmp, 48); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 9) | (tmp << (64 - 9)); + b15 = ror64(tmp, 9); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 25) | (tmp << (64 - 25)); + b9 = ror64(tmp, 25); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 44) | (tmp << (64 - 44)); + b11 = ror64(tmp, 44); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 42) | (tmp << (64 - 42)); + b13 = ror64(tmp, 42); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 19) | (tmp << (64 - 19)); + b15 = ror64(tmp, 19); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 47) | (tmp << (64 - 47)); + b3 = ror64(tmp, 47); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 44) | (tmp << (64 - 44)); + b5 = ror64(tmp, 44); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 42) | (tmp << (64 - 42)); + b5 = ror64(tmp, 42); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 53) | (tmp << (64 - 53)); + b3 = ror64(tmp, 53); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 4) | (tmp << (64 - 4)); + b7 = ror64(tmp, 4); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 51) | (tmp << (64 - 51)); + b15 = ror64(tmp, 51); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 56) | (tmp << (64 - 56)); + b11 = ror64(tmp, 56); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 34) | (tmp << (64 - 34)); + b13 = ror64(tmp, 34); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 16) | (tmp << (64 - 16)); + b9 = ror64(tmp, 16); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 30) | (tmp << (64 - 30)); + b15 = ror64(tmp, 30); b14 -= b15 + k10 + t2; b15 -= k11 + 13; tmp = b13 ^ b12; - b13 = (tmp >> 44) | (tmp << (64 - 44)); + b13 = ror64(tmp, 44); b12 -= b13 + k8; b13 -= k9 + t1; tmp = b11 ^ b10; - b11 = (tmp >> 47) | (tmp << (64 - 47)); + b11 = ror64(tmp, 47); b10 -= b11 + k6; b11 -= k7; tmp = b9 ^ b8; - b9 = (tmp >> 12) | (tmp << (64 - 12)); + b9 = ror64(tmp, 12); b8 -= b9 + k4; b9 -= k5; tmp = b7 ^ b6; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b6 -= b7 + k2; b7 -= k3; tmp = b5 ^ b4; - b5 = (tmp >> 37) | (tmp << (64 - 37)); + b5 = ror64(tmp, 37); b4 -= b5 + k0; b5 -= k1; tmp = b3 ^ b2; - b3 = (tmp >> 9) | (tmp << (64 - 9)); + b3 = ror64(tmp, 9); b2 -= b3 + k15; b3 -= k16; tmp = b1 ^ b0; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b0 -= b1 + k13; b1 -= k14; tmp = b7 ^ b12; - b7 = (tmp >> 25) | (tmp << (64 - 25)); + b7 = ror64(tmp, 25); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 28) | (tmp << (64 - 28)); + b5 = ror64(tmp, 28); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 47) | (tmp << (64 - 47)); + b1 = ror64(tmp, 47); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 41) | (tmp << (64 - 41)); + b9 = ror64(tmp, 41); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 48) | (tmp << (64 - 48)); + b13 = ror64(tmp, 48); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 20) | (tmp << (64 - 20)); + b11 = ror64(tmp, 20); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 5) | (tmp << (64 - 5)); + b15 = ror64(tmp, 5); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 17) | (tmp << (64 - 17)); + b9 = ror64(tmp, 17); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 59) | (tmp << (64 - 59)); + b11 = ror64(tmp, 59); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 41) | (tmp << (64 - 41)); + b13 = ror64(tmp, 41); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 34) | (tmp << (64 - 34)); + b15 = ror64(tmp, 34); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 51) | (tmp << (64 - 51)); + b3 = ror64(tmp, 51); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 4) | (tmp << (64 - 4)); + b5 = ror64(tmp, 4); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 33) | (tmp << (64 - 33)); + b7 = ror64(tmp, 33); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 52) | (tmp << (64 - 52)); + b1 = ror64(tmp, 52); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 23) | (tmp << (64 - 23)); + b5 = ror64(tmp, 23); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 18) | (tmp << (64 - 18)); + b3 = ror64(tmp, 18); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 49) | (tmp << (64 - 49)); + b7 = ror64(tmp, 49); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 55) | (tmp << (64 - 55)); + b15 = ror64(tmp, 55); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 10) | (tmp << (64 - 10)); + b11 = ror64(tmp, 10); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 19) | (tmp << (64 - 19)); + b13 = ror64(tmp, 19); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 38) | (tmp << (64 - 38)); + b9 = ror64(tmp, 38); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 37) | (tmp << (64 - 37)); + b15 = ror64(tmp, 37); b14 -= b15 + k9 + t1; b15 -= k10 + 12; tmp = b13 ^ b12; - b13 = (tmp >> 22) | (tmp << (64 - 22)); + b13 = ror64(tmp, 22); b12 -= b13 + k7; b13 -= k8 + t0; tmp = b11 ^ b10; - b11 = (tmp >> 17) | (tmp << (64 - 17)); + b11 = ror64(tmp, 17); b10 -= b11 + k5; b11 -= k6; tmp = b9 ^ b8; - b9 = (tmp >> 8) | (tmp << (64 - 8)); + b9 = ror64(tmp, 8); b8 -= b9 + k3; b9 -= k4; tmp = b7 ^ b6; - b7 = (tmp >> 47) | (tmp << (64 - 47)); + b7 = ror64(tmp, 47); b6 -= b7 + k1; b7 -= k2; tmp = b5 ^ b4; - b5 = (tmp >> 8) | (tmp << (64 - 8)); + b5 = ror64(tmp, 8); b4 -= b5 + k16; b5 -= k0; tmp = b3 ^ b2; - b3 = (tmp >> 13) | (tmp << (64 - 13)); + b3 = ror64(tmp, 13); b2 -= b3 + k14; b3 -= k15; tmp = b1 ^ b0; - b1 = (tmp >> 24) | (tmp << (64 - 24)); + b1 = ror64(tmp, 24); b0 -= b1 + k12; b1 -= k13; tmp = b7 ^ b12; - b7 = (tmp >> 20) | (tmp << (64 - 20)); + b7 = ror64(tmp, 20); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 37) | (tmp << (64 - 37)); + b3 = ror64(tmp, 37); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 31) | (tmp << (64 - 31)); + b5 = ror64(tmp, 31); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 52) | (tmp << (64 - 52)); + b9 = ror64(tmp, 52); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 35) | (tmp << (64 - 35)); + b13 = ror64(tmp, 35); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 48) | (tmp << (64 - 48)); + b11 = ror64(tmp, 48); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 9) | (tmp << (64 - 9)); + b15 = ror64(tmp, 9); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 25) | (tmp << (64 - 25)); + b9 = ror64(tmp, 25); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 44) | (tmp << (64 - 44)); + b11 = ror64(tmp, 44); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 42) | (tmp << (64 - 42)); + b13 = ror64(tmp, 42); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 19) | (tmp << (64 - 19)); + b15 = ror64(tmp, 19); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 47) | (tmp << (64 - 47)); + b3 = ror64(tmp, 47); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 44) | (tmp << (64 - 44)); + b5 = ror64(tmp, 44); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 42) | (tmp << (64 - 42)); + b5 = ror64(tmp, 42); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 53) | (tmp << (64 - 53)); + b3 = ror64(tmp, 53); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 4) | (tmp << (64 - 4)); + b7 = ror64(tmp, 4); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 51) | (tmp << (64 - 51)); + b15 = ror64(tmp, 51); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 56) | (tmp << (64 - 56)); + b11 = ror64(tmp, 56); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 34) | (tmp << (64 - 34)); + b13 = ror64(tmp, 34); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 16) | (tmp << (64 - 16)); + b9 = ror64(tmp, 16); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 30) | (tmp << (64 - 30)); + b15 = ror64(tmp, 30); b14 -= b15 + k8 + t0; b15 -= k9 + 11; tmp = b13 ^ b12; - b13 = (tmp >> 44) | (tmp << (64 - 44)); + b13 = ror64(tmp, 44); b12 -= b13 + k6; b13 -= k7 + t2; tmp = b11 ^ b10; - b11 = (tmp >> 47) | (tmp << (64 - 47)); + b11 = ror64(tmp, 47); b10 -= b11 + k4; b11 -= k5; tmp = b9 ^ b8; - b9 = (tmp >> 12) | (tmp << (64 - 12)); + b9 = ror64(tmp, 12); b8 -= b9 + k2; b9 -= k3; tmp = b7 ^ b6; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b6 -= b7 + k0; b7 -= k1; tmp = b5 ^ b4; - b5 = (tmp >> 37) | (tmp << (64 - 37)); + b5 = ror64(tmp, 37); b4 -= b5 + k15; b5 -= k16; tmp = b3 ^ b2; - b3 = (tmp >> 9) | (tmp << (64 - 9)); + b3 = ror64(tmp, 9); b2 -= b3 + k13; b3 -= k14; tmp = b1 ^ b0; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b0 -= b1 + k11; b1 -= k12; tmp = b7 ^ b12; - b7 = (tmp >> 25) | (tmp << (64 - 25)); + b7 = ror64(tmp, 25); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 28) | (tmp << (64 - 28)); + b5 = ror64(tmp, 28); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 47) | (tmp << (64 - 47)); + b1 = ror64(tmp, 47); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 41) | (tmp << (64 - 41)); + b9 = ror64(tmp, 41); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 48) | (tmp << (64 - 48)); + b13 = ror64(tmp, 48); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 20) | (tmp << (64 - 20)); + b11 = ror64(tmp, 20); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 5) | (tmp << (64 - 5)); + b15 = ror64(tmp, 5); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 17) | (tmp << (64 - 17)); + b9 = ror64(tmp, 17); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 59) | (tmp << (64 - 59)); + b11 = ror64(tmp, 59); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 41) | (tmp << (64 - 41)); + b13 = ror64(tmp, 41); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 34) | (tmp << (64 - 34)); + b15 = ror64(tmp, 34); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 51) | (tmp << (64 - 51)); + b3 = ror64(tmp, 51); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 4) | (tmp << (64 - 4)); + b5 = ror64(tmp, 4); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 33) | (tmp << (64 - 33)); + b7 = ror64(tmp, 33); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 52) | (tmp << (64 - 52)); + b1 = ror64(tmp, 52); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 23) | (tmp << (64 - 23)); + b5 = ror64(tmp, 23); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 18) | (tmp << (64 - 18)); + b3 = ror64(tmp, 18); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 49) | (tmp << (64 - 49)); + b7 = ror64(tmp, 49); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 55) | (tmp << (64 - 55)); + b15 = ror64(tmp, 55); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 10) | (tmp << (64 - 10)); + b11 = ror64(tmp, 10); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 19) | (tmp << (64 - 19)); + b13 = ror64(tmp, 19); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 38) | (tmp << (64 - 38)); + b9 = ror64(tmp, 38); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 37) | (tmp << (64 - 37)); + b15 = ror64(tmp, 37); b14 -= b15 + k7 + t2; b15 -= k8 + 10; tmp = b13 ^ b12; - b13 = (tmp >> 22) | (tmp << (64 - 22)); + b13 = ror64(tmp, 22); b12 -= b13 + k5; b13 -= k6 + t1; tmp = b11 ^ b10; - b11 = (tmp >> 17) | (tmp << (64 - 17)); + b11 = ror64(tmp, 17); b10 -= b11 + k3; b11 -= k4; tmp = b9 ^ b8; - b9 = (tmp >> 8) | (tmp << (64 - 8)); + b9 = ror64(tmp, 8); b8 -= b9 + k1; b9 -= k2; tmp = b7 ^ b6; - b7 = (tmp >> 47) | (tmp << (64 - 47)); + b7 = ror64(tmp, 47); b6 -= b7 + k16; b7 -= k0; tmp = b5 ^ b4; - b5 = (tmp >> 8) | (tmp << (64 - 8)); + b5 = ror64(tmp, 8); b4 -= b5 + k14; b5 -= k15; tmp = b3 ^ b2; - b3 = (tmp >> 13) | (tmp << (64 - 13)); + b3 = ror64(tmp, 13); b2 -= b3 + k12; b3 -= k13; tmp = b1 ^ b0; - b1 = (tmp >> 24) | (tmp << (64 - 24)); + b1 = ror64(tmp, 24); b0 -= b1 + k10; b1 -= k11; tmp = b7 ^ b12; - b7 = (tmp >> 20) | (tmp << (64 - 20)); + b7 = ror64(tmp, 20); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 37) | (tmp << (64 - 37)); + b3 = ror64(tmp, 37); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 31) | (tmp << (64 - 31)); + b5 = ror64(tmp, 31); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 52) | (tmp << (64 - 52)); + b9 = ror64(tmp, 52); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 35) | (tmp << (64 - 35)); + b13 = ror64(tmp, 35); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 48) | (tmp << (64 - 48)); + b11 = ror64(tmp, 48); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 9) | (tmp << (64 - 9)); + b15 = ror64(tmp, 9); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 25) | (tmp << (64 - 25)); + b9 = ror64(tmp, 25); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 44) | (tmp << (64 - 44)); + b11 = ror64(tmp, 44); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 42) | (tmp << (64 - 42)); + b13 = ror64(tmp, 42); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 19) | (tmp << (64 - 19)); + b15 = ror64(tmp, 19); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 47) | (tmp << (64 - 47)); + b3 = ror64(tmp, 47); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 44) | (tmp << (64 - 44)); + b5 = ror64(tmp, 44); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 42) | (tmp << (64 - 42)); + b5 = ror64(tmp, 42); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 53) | (tmp << (64 - 53)); + b3 = ror64(tmp, 53); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 4) | (tmp << (64 - 4)); + b7 = ror64(tmp, 4); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 51) | (tmp << (64 - 51)); + b15 = ror64(tmp, 51); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 56) | (tmp << (64 - 56)); + b11 = ror64(tmp, 56); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 34) | (tmp << (64 - 34)); + b13 = ror64(tmp, 34); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 16) | (tmp << (64 - 16)); + b9 = ror64(tmp, 16); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 30) | (tmp << (64 - 30)); + b15 = ror64(tmp, 30); b14 -= b15 + k6 + t1; b15 -= k7 + 9; tmp = b13 ^ b12; - b13 = (tmp >> 44) | (tmp << (64 - 44)); + b13 = ror64(tmp, 44); b12 -= b13 + k4; b13 -= k5 + t0; tmp = b11 ^ b10; - b11 = (tmp >> 47) | (tmp << (64 - 47)); + b11 = ror64(tmp, 47); b10 -= b11 + k2; b11 -= k3; tmp = b9 ^ b8; - b9 = (tmp >> 12) | (tmp << (64 - 12)); + b9 = ror64(tmp, 12); b8 -= b9 + k0; b9 -= k1; tmp = b7 ^ b6; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b6 -= b7 + k15; b7 -= k16; tmp = b5 ^ b4; - b5 = (tmp >> 37) | (tmp << (64 - 37)); + b5 = ror64(tmp, 37); b4 -= b5 + k13; b5 -= k14; tmp = b3 ^ b2; - b3 = (tmp >> 9) | (tmp << (64 - 9)); + b3 = ror64(tmp, 9); b2 -= b3 + k11; b3 -= k12; tmp = b1 ^ b0; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b0 -= b1 + k9; b1 -= k10; tmp = b7 ^ b12; - b7 = (tmp >> 25) | (tmp << (64 - 25)); + b7 = ror64(tmp, 25); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 28) | (tmp << (64 - 28)); + b5 = ror64(tmp, 28); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 47) | (tmp << (64 - 47)); + b1 = ror64(tmp, 47); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 41) | (tmp << (64 - 41)); + b9 = ror64(tmp, 41); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 48) | (tmp << (64 - 48)); + b13 = ror64(tmp, 48); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 20) | (tmp << (64 - 20)); + b11 = ror64(tmp, 20); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 5) | (tmp << (64 - 5)); + b15 = ror64(tmp, 5); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 17) | (tmp << (64 - 17)); + b9 = ror64(tmp, 17); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 59) | (tmp << (64 - 59)); + b11 = ror64(tmp, 59); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 41) | (tmp << (64 - 41)); + b13 = ror64(tmp, 41); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 34) | (tmp << (64 - 34)); + b15 = ror64(tmp, 34); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 51) | (tmp << (64 - 51)); + b3 = ror64(tmp, 51); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 4) | (tmp << (64 - 4)); + b5 = ror64(tmp, 4); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 33) | (tmp << (64 - 33)); + b7 = ror64(tmp, 33); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 52) | (tmp << (64 - 52)); + b1 = ror64(tmp, 52); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 23) | (tmp << (64 - 23)); + b5 = ror64(tmp, 23); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 18) | (tmp << (64 - 18)); + b3 = ror64(tmp, 18); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 49) | (tmp << (64 - 49)); + b7 = ror64(tmp, 49); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 55) | (tmp << (64 - 55)); + b15 = ror64(tmp, 55); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 10) | (tmp << (64 - 10)); + b11 = ror64(tmp, 10); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 19) | (tmp << (64 - 19)); + b13 = ror64(tmp, 19); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 38) | (tmp << (64 - 38)); + b9 = ror64(tmp, 38); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 37) | (tmp << (64 - 37)); + b15 = ror64(tmp, 37); b14 -= b15 + k5 + t0; b15 -= k6 + 8; tmp = b13 ^ b12; - b13 = (tmp >> 22) | (tmp << (64 - 22)); + b13 = ror64(tmp, 22); b12 -= b13 + k3; b13 -= k4 + t2; tmp = b11 ^ b10; - b11 = (tmp >> 17) | (tmp << (64 - 17)); + b11 = ror64(tmp, 17); b10 -= b11 + k1; b11 -= k2; tmp = b9 ^ b8; - b9 = (tmp >> 8) | (tmp << (64 - 8)); + b9 = ror64(tmp, 8); b8 -= b9 + k16; b9 -= k0; tmp = b7 ^ b6; - b7 = (tmp >> 47) | (tmp << (64 - 47)); + b7 = ror64(tmp, 47); b6 -= b7 + k14; b7 -= k15; tmp = b5 ^ b4; - b5 = (tmp >> 8) | (tmp << (64 - 8)); + b5 = ror64(tmp, 8); b4 -= b5 + k12; b5 -= k13; tmp = b3 ^ b2; - b3 = (tmp >> 13) | (tmp << (64 - 13)); + b3 = ror64(tmp, 13); b2 -= b3 + k10; b3 -= k11; tmp = b1 ^ b0; - b1 = (tmp >> 24) | (tmp << (64 - 24)); + b1 = ror64(tmp, 24); b0 -= b1 + k8; b1 -= k9; tmp = b7 ^ b12; - b7 = (tmp >> 20) | (tmp << (64 - 20)); + b7 = ror64(tmp, 20); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 37) | (tmp << (64 - 37)); + b3 = ror64(tmp, 37); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 31) | (tmp << (64 - 31)); + b5 = ror64(tmp, 31); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 52) | (tmp << (64 - 52)); + b9 = ror64(tmp, 52); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 35) | (tmp << (64 - 35)); + b13 = ror64(tmp, 35); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 48) | (tmp << (64 - 48)); + b11 = ror64(tmp, 48); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 9) | (tmp << (64 - 9)); + b15 = ror64(tmp, 9); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 25) | (tmp << (64 - 25)); + b9 = ror64(tmp, 25); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 44) | (tmp << (64 - 44)); + b11 = ror64(tmp, 44); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 42) | (tmp << (64 - 42)); + b13 = ror64(tmp, 42); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 19) | (tmp << (64 - 19)); + b15 = ror64(tmp, 19); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 47) | (tmp << (64 - 47)); + b3 = ror64(tmp, 47); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 44) | (tmp << (64 - 44)); + b5 = ror64(tmp, 44); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 42) | (tmp << (64 - 42)); + b5 = ror64(tmp, 42); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 53) | (tmp << (64 - 53)); + b3 = ror64(tmp, 53); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 4) | (tmp << (64 - 4)); + b7 = ror64(tmp, 4); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 51) | (tmp << (64 - 51)); + b15 = ror64(tmp, 51); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 56) | (tmp << (64 - 56)); + b11 = ror64(tmp, 56); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 34) | (tmp << (64 - 34)); + b13 = ror64(tmp, 34); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 16) | (tmp << (64 - 16)); + b9 = ror64(tmp, 16); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 30) | (tmp << (64 - 30)); + b15 = ror64(tmp, 30); b14 -= b15 + k4 + t2; b15 -= k5 + 7; tmp = b13 ^ b12; - b13 = (tmp >> 44) | (tmp << (64 - 44)); + b13 = ror64(tmp, 44); b12 -= b13 + k2; b13 -= k3 + t1; tmp = b11 ^ b10; - b11 = (tmp >> 47) | (tmp << (64 - 47)); + b11 = ror64(tmp, 47); b10 -= b11 + k0; b11 -= k1; tmp = b9 ^ b8; - b9 = (tmp >> 12) | (tmp << (64 - 12)); + b9 = ror64(tmp, 12); b8 -= b9 + k15; b9 -= k16; tmp = b7 ^ b6; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b6 -= b7 + k13; b7 -= k14; tmp = b5 ^ b4; - b5 = (tmp >> 37) | (tmp << (64 - 37)); + b5 = ror64(tmp, 37); b4 -= b5 + k11; b5 -= k12; tmp = b3 ^ b2; - b3 = (tmp >> 9) | (tmp << (64 - 9)); + b3 = ror64(tmp, 9); b2 -= b3 + k9; b3 -= k10; tmp = b1 ^ b0; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b0 -= b1 + k7; b1 -= k8; tmp = b7 ^ b12; - b7 = (tmp >> 25) | (tmp << (64 - 25)); + b7 = ror64(tmp, 25); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 28) | (tmp << (64 - 28)); + b5 = ror64(tmp, 28); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 47) | (tmp << (64 - 47)); + b1 = ror64(tmp, 47); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 41) | (tmp << (64 - 41)); + b9 = ror64(tmp, 41); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 48) | (tmp << (64 - 48)); + b13 = ror64(tmp, 48); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 20) | (tmp << (64 - 20)); + b11 = ror64(tmp, 20); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 5) | (tmp << (64 - 5)); + b15 = ror64(tmp, 5); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 17) | (tmp << (64 - 17)); + b9 = ror64(tmp, 17); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 59) | (tmp << (64 - 59)); + b11 = ror64(tmp, 59); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 41) | (tmp << (64 - 41)); + b13 = ror64(tmp, 41); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 34) | (tmp << (64 - 34)); + b15 = ror64(tmp, 34); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 51) | (tmp << (64 - 51)); + b3 = ror64(tmp, 51); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 4) | (tmp << (64 - 4)); + b5 = ror64(tmp, 4); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 33) | (tmp << (64 - 33)); + b7 = ror64(tmp, 33); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 52) | (tmp << (64 - 52)); + b1 = ror64(tmp, 52); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 23) | (tmp << (64 - 23)); + b5 = ror64(tmp, 23); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 18) | (tmp << (64 - 18)); + b3 = ror64(tmp, 18); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 49) | (tmp << (64 - 49)); + b7 = ror64(tmp, 49); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 55) | (tmp << (64 - 55)); + b15 = ror64(tmp, 55); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 10) | (tmp << (64 - 10)); + b11 = ror64(tmp, 10); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 19) | (tmp << (64 - 19)); + b13 = ror64(tmp, 19); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 38) | (tmp << (64 - 38)); + b9 = ror64(tmp, 38); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 37) | (tmp << (64 - 37)); + b15 = ror64(tmp, 37); b14 -= b15 + k3 + t1; b15 -= k4 + 6; tmp = b13 ^ b12; - b13 = (tmp >> 22) | (tmp << (64 - 22)); + b13 = ror64(tmp, 22); b12 -= b13 + k1; b13 -= k2 + t0; tmp = b11 ^ b10; - b11 = (tmp >> 17) | (tmp << (64 - 17)); + b11 = ror64(tmp, 17); b10 -= b11 + k16; b11 -= k0; tmp = b9 ^ b8; - b9 = (tmp >> 8) | (tmp << (64 - 8)); + b9 = ror64(tmp, 8); b8 -= b9 + k14; b9 -= k15; tmp = b7 ^ b6; - b7 = (tmp >> 47) | (tmp << (64 - 47)); + b7 = ror64(tmp, 47); b6 -= b7 + k12; b7 -= k13; tmp = b5 ^ b4; - b5 = (tmp >> 8) | (tmp << (64 - 8)); + b5 = ror64(tmp, 8); b4 -= b5 + k10; b5 -= k11; tmp = b3 ^ b2; - b3 = (tmp >> 13) | (tmp << (64 - 13)); + b3 = ror64(tmp, 13); b2 -= b3 + k8; b3 -= k9; tmp = b1 ^ b0; - b1 = (tmp >> 24) | (tmp << (64 - 24)); + b1 = ror64(tmp, 24); b0 -= b1 + k6; b1 -= k7; tmp = b7 ^ b12; - b7 = (tmp >> 20) | (tmp << (64 - 20)); + b7 = ror64(tmp, 20); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 37) | (tmp << (64 - 37)); + b3 = ror64(tmp, 37); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 31) | (tmp << (64 - 31)); + b5 = ror64(tmp, 31); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 52) | (tmp << (64 - 52)); + b9 = ror64(tmp, 52); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 35) | (tmp << (64 - 35)); + b13 = ror64(tmp, 35); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 48) | (tmp << (64 - 48)); + b11 = ror64(tmp, 48); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 9) | (tmp << (64 - 9)); + b15 = ror64(tmp, 9); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 25) | (tmp << (64 - 25)); + b9 = ror64(tmp, 25); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 44) | (tmp << (64 - 44)); + b11 = ror64(tmp, 44); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 42) | (tmp << (64 - 42)); + b13 = ror64(tmp, 42); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 19) | (tmp << (64 - 19)); + b15 = ror64(tmp, 19); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 47) | (tmp << (64 - 47)); + b3 = ror64(tmp, 47); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 44) | (tmp << (64 - 44)); + b5 = ror64(tmp, 44); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 42) | (tmp << (64 - 42)); + b5 = ror64(tmp, 42); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 53) | (tmp << (64 - 53)); + b3 = ror64(tmp, 53); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 4) | (tmp << (64 - 4)); + b7 = ror64(tmp, 4); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 51) | (tmp << (64 - 51)); + b15 = ror64(tmp, 51); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 56) | (tmp << (64 - 56)); + b11 = ror64(tmp, 56); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 34) | (tmp << (64 - 34)); + b13 = ror64(tmp, 34); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 16) | (tmp << (64 - 16)); + b9 = ror64(tmp, 16); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 30) | (tmp << (64 - 30)); + b15 = ror64(tmp, 30); b14 -= b15 + k2 + t0; b15 -= k3 + 5; tmp = b13 ^ b12; - b13 = (tmp >> 44) | (tmp << (64 - 44)); + b13 = ror64(tmp, 44); b12 -= b13 + k0; b13 -= k1 + t2; tmp = b11 ^ b10; - b11 = (tmp >> 47) | (tmp << (64 - 47)); + b11 = ror64(tmp, 47); b10 -= b11 + k15; b11 -= k16; tmp = b9 ^ b8; - b9 = (tmp >> 12) | (tmp << (64 - 12)); + b9 = ror64(tmp, 12); b8 -= b9 + k13; b9 -= k14; tmp = b7 ^ b6; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b6 -= b7 + k11; b7 -= k12; tmp = b5 ^ b4; - b5 = (tmp >> 37) | (tmp << (64 - 37)); + b5 = ror64(tmp, 37); b4 -= b5 + k9; b5 -= k10; tmp = b3 ^ b2; - b3 = (tmp >> 9) | (tmp << (64 - 9)); + b3 = ror64(tmp, 9); b2 -= b3 + k7; b3 -= k8; tmp = b1 ^ b0; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b0 -= b1 + k5; b1 -= k6; tmp = b7 ^ b12; - b7 = (tmp >> 25) | (tmp << (64 - 25)); + b7 = ror64(tmp, 25); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 28) | (tmp << (64 - 28)); + b5 = ror64(tmp, 28); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 47) | (tmp << (64 - 47)); + b1 = ror64(tmp, 47); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 41) | (tmp << (64 - 41)); + b9 = ror64(tmp, 41); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 48) | (tmp << (64 - 48)); + b13 = ror64(tmp, 48); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 20) | (tmp << (64 - 20)); + b11 = ror64(tmp, 20); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 5) | (tmp << (64 - 5)); + b15 = ror64(tmp, 5); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 17) | (tmp << (64 - 17)); + b9 = ror64(tmp, 17); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 59) | (tmp << (64 - 59)); + b11 = ror64(tmp, 59); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 41) | (tmp << (64 - 41)); + b13 = ror64(tmp, 41); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 34) | (tmp << (64 - 34)); + b15 = ror64(tmp, 34); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 51) | (tmp << (64 - 51)); + b3 = ror64(tmp, 51); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 4) | (tmp << (64 - 4)); + b5 = ror64(tmp, 4); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 33) | (tmp << (64 - 33)); + b7 = ror64(tmp, 33); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 52) | (tmp << (64 - 52)); + b1 = ror64(tmp, 52); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 23) | (tmp << (64 - 23)); + b5 = ror64(tmp, 23); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 18) | (tmp << (64 - 18)); + b3 = ror64(tmp, 18); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 49) | (tmp << (64 - 49)); + b7 = ror64(tmp, 49); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 55) | (tmp << (64 - 55)); + b15 = ror64(tmp, 55); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 10) | (tmp << (64 - 10)); + b11 = ror64(tmp, 10); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 19) | (tmp << (64 - 19)); + b13 = ror64(tmp, 19); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 38) | (tmp << (64 - 38)); + b9 = ror64(tmp, 38); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 37) | (tmp << (64 - 37)); + b15 = ror64(tmp, 37); b14 -= b15 + k1 + t2; b15 -= k2 + 4; tmp = b13 ^ b12; - b13 = (tmp >> 22) | (tmp << (64 - 22)); + b13 = ror64(tmp, 22); b12 -= b13 + k16; b13 -= k0 + t1; tmp = b11 ^ b10; - b11 = (tmp >> 17) | (tmp << (64 - 17)); + b11 = ror64(tmp, 17); b10 -= b11 + k14; b11 -= k15; tmp = b9 ^ b8; - b9 = (tmp >> 8) | (tmp << (64 - 8)); + b9 = ror64(tmp, 8); b8 -= b9 + k12; b9 -= k13; tmp = b7 ^ b6; - b7 = (tmp >> 47) | (tmp << (64 - 47)); + b7 = ror64(tmp, 47); b6 -= b7 + k10; b7 -= k11; tmp = b5 ^ b4; - b5 = (tmp >> 8) | (tmp << (64 - 8)); + b5 = ror64(tmp, 8); b4 -= b5 + k8; b5 -= k9; tmp = b3 ^ b2; - b3 = (tmp >> 13) | (tmp << (64 - 13)); + b3 = ror64(tmp, 13); b2 -= b3 + k6; b3 -= k7; tmp = b1 ^ b0; - b1 = (tmp >> 24) | (tmp << (64 - 24)); + b1 = ror64(tmp, 24); b0 -= b1 + k4; b1 -= k5; tmp = b7 ^ b12; - b7 = (tmp >> 20) | (tmp << (64 - 20)); + b7 = ror64(tmp, 20); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 37) | (tmp << (64 - 37)); + b3 = ror64(tmp, 37); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 31) | (tmp << (64 - 31)); + b5 = ror64(tmp, 31); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 52) | (tmp << (64 - 52)); + b9 = ror64(tmp, 52); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 35) | (tmp << (64 - 35)); + b13 = ror64(tmp, 35); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 48) | (tmp << (64 - 48)); + b11 = ror64(tmp, 48); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 9) | (tmp << (64 - 9)); + b15 = ror64(tmp, 9); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 25) | (tmp << (64 - 25)); + b9 = ror64(tmp, 25); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 44) | (tmp << (64 - 44)); + b11 = ror64(tmp, 44); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 42) | (tmp << (64 - 42)); + b13 = ror64(tmp, 42); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 19) | (tmp << (64 - 19)); + b15 = ror64(tmp, 19); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 47) | (tmp << (64 - 47)); + b3 = ror64(tmp, 47); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 44) | (tmp << (64 - 44)); + b5 = ror64(tmp, 44); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 42) | (tmp << (64 - 42)); + b5 = ror64(tmp, 42); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 53) | (tmp << (64 - 53)); + b3 = ror64(tmp, 53); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 4) | (tmp << (64 - 4)); + b7 = ror64(tmp, 4); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 51) | (tmp << (64 - 51)); + b15 = ror64(tmp, 51); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 56) | (tmp << (64 - 56)); + b11 = ror64(tmp, 56); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 34) | (tmp << (64 - 34)); + b13 = ror64(tmp, 34); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 16) | (tmp << (64 - 16)); + b9 = ror64(tmp, 16); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 30) | (tmp << (64 - 30)); + b15 = ror64(tmp, 30); b14 -= b15 + k0 + t1; b15 -= k1 + 3; tmp = b13 ^ b12; - b13 = (tmp >> 44) | (tmp << (64 - 44)); + b13 = ror64(tmp, 44); b12 -= b13 + k15; b13 -= k16 + t0; tmp = b11 ^ b10; - b11 = (tmp >> 47) | (tmp << (64 - 47)); + b11 = ror64(tmp, 47); b10 -= b11 + k13; b11 -= k14; tmp = b9 ^ b8; - b9 = (tmp >> 12) | (tmp << (64 - 12)); + b9 = ror64(tmp, 12); b8 -= b9 + k11; b9 -= k12; tmp = b7 ^ b6; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b6 -= b7 + k9; b7 -= k10; tmp = b5 ^ b4; - b5 = (tmp >> 37) | (tmp << (64 - 37)); + b5 = ror64(tmp, 37); b4 -= b5 + k7; b5 -= k8; tmp = b3 ^ b2; - b3 = (tmp >> 9) | (tmp << (64 - 9)); + b3 = ror64(tmp, 9); b2 -= b3 + k5; b3 -= k6; tmp = b1 ^ b0; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b0 -= b1 + k3; b1 -= k4; tmp = b7 ^ b12; - b7 = (tmp >> 25) | (tmp << (64 - 25)); + b7 = ror64(tmp, 25); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 28) | (tmp << (64 - 28)); + b5 = ror64(tmp, 28); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 47) | (tmp << (64 - 47)); + b1 = ror64(tmp, 47); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 41) | (tmp << (64 - 41)); + b9 = ror64(tmp, 41); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 48) | (tmp << (64 - 48)); + b13 = ror64(tmp, 48); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 20) | (tmp << (64 - 20)); + b11 = ror64(tmp, 20); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 5) | (tmp << (64 - 5)); + b15 = ror64(tmp, 5); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 17) | (tmp << (64 - 17)); + b9 = ror64(tmp, 17); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 59) | (tmp << (64 - 59)); + b11 = ror64(tmp, 59); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 41) | (tmp << (64 - 41)); + b13 = ror64(tmp, 41); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 34) | (tmp << (64 - 34)); + b15 = ror64(tmp, 34); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 51) | (tmp << (64 - 51)); + b3 = ror64(tmp, 51); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 4) | (tmp << (64 - 4)); + b5 = ror64(tmp, 4); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 33) | (tmp << (64 - 33)); + b7 = ror64(tmp, 33); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 52) | (tmp << (64 - 52)); + b1 = ror64(tmp, 52); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 23) | (tmp << (64 - 23)); + b5 = ror64(tmp, 23); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 18) | (tmp << (64 - 18)); + b3 = ror64(tmp, 18); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 49) | (tmp << (64 - 49)); + b7 = ror64(tmp, 49); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 55) | (tmp << (64 - 55)); + b15 = ror64(tmp, 55); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 10) | (tmp << (64 - 10)); + b11 = ror64(tmp, 10); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 19) | (tmp << (64 - 19)); + b13 = ror64(tmp, 19); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 38) | (tmp << (64 - 38)); + b9 = ror64(tmp, 38); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 37) | (tmp << (64 - 37)); + b15 = ror64(tmp, 37); b14 -= b15 + k16 + t0; b15 -= k0 + 2; tmp = b13 ^ b12; - b13 = (tmp >> 22) | (tmp << (64 - 22)); + b13 = ror64(tmp, 22); b12 -= b13 + k14; b13 -= k15 + t2; tmp = b11 ^ b10; - b11 = (tmp >> 17) | (tmp << (64 - 17)); + b11 = ror64(tmp, 17); b10 -= b11 + k12; b11 -= k13; tmp = b9 ^ b8; - b9 = (tmp >> 8) | (tmp << (64 - 8)); + b9 = ror64(tmp, 8); b8 -= b9 + k10; b9 -= k11; tmp = b7 ^ b6; - b7 = (tmp >> 47) | (tmp << (64 - 47)); + b7 = ror64(tmp, 47); b6 -= b7 + k8; b7 -= k9; tmp = b5 ^ b4; - b5 = (tmp >> 8) | (tmp << (64 - 8)); + b5 = ror64(tmp, 8); b4 -= b5 + k6; b5 -= k7; tmp = b3 ^ b2; - b3 = (tmp >> 13) | (tmp << (64 - 13)); + b3 = ror64(tmp, 13); b2 -= b3 + k4; b3 -= k5; tmp = b1 ^ b0; - b1 = (tmp >> 24) | (tmp << (64 - 24)); + b1 = ror64(tmp, 24); b0 -= b1 + k2; b1 -= k3; tmp = b7 ^ b12; - b7 = (tmp >> 20) | (tmp << (64 - 20)); + b7 = ror64(tmp, 20); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 37) | (tmp << (64 - 37)); + b3 = ror64(tmp, 37); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 31) | (tmp << (64 - 31)); + b5 = ror64(tmp, 31); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 23) | (tmp << (64 - 23)); + b1 = ror64(tmp, 23); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 52) | (tmp << (64 - 52)); + b9 = ror64(tmp, 52); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 35) | (tmp << (64 - 35)); + b13 = ror64(tmp, 35); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 48) | (tmp << (64 - 48)); + b11 = ror64(tmp, 48); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 9) | (tmp << (64 - 9)); + b15 = ror64(tmp, 9); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 25) | (tmp << (64 - 25)); + b9 = ror64(tmp, 25); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 44) | (tmp << (64 - 44)); + b11 = ror64(tmp, 44); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 42) | (tmp << (64 - 42)); + b13 = ror64(tmp, 42); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 19) | (tmp << (64 - 19)); + b15 = ror64(tmp, 19); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 46) | (tmp << (64 - 46)); + b1 = ror64(tmp, 46); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 47) | (tmp << (64 - 47)); + b3 = ror64(tmp, 47); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 44) | (tmp << (64 - 44)); + b5 = ror64(tmp, 44); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 42) | (tmp << (64 - 42)); + b5 = ror64(tmp, 42); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 53) | (tmp << (64 - 53)); + b3 = ror64(tmp, 53); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 4) | (tmp << (64 - 4)); + b7 = ror64(tmp, 4); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 51) | (tmp << (64 - 51)); + b15 = ror64(tmp, 51); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 56) | (tmp << (64 - 56)); + b11 = ror64(tmp, 56); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 34) | (tmp << (64 - 34)); + b13 = ror64(tmp, 34); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 16) | (tmp << (64 - 16)); + b9 = ror64(tmp, 16); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 30) | (tmp << (64 - 30)); + b15 = ror64(tmp, 30); b14 -= b15 + k15 + t2; b15 -= k16 + 1; tmp = b13 ^ b12; - b13 = (tmp >> 44) | (tmp << (64 - 44)); + b13 = ror64(tmp, 44); b12 -= b13 + k13; b13 -= k14 + t1; tmp = b11 ^ b10; - b11 = (tmp >> 47) | (tmp << (64 - 47)); + b11 = ror64(tmp, 47); b10 -= b11 + k11; b11 -= k12; tmp = b9 ^ b8; - b9 = (tmp >> 12) | (tmp << (64 - 12)); + b9 = ror64(tmp, 12); b8 -= b9 + k9; b9 -= k10; tmp = b7 ^ b6; - b7 = (tmp >> 31) | (tmp << (64 - 31)); + b7 = ror64(tmp, 31); b6 -= b7 + k7; b7 -= k8; tmp = b5 ^ b4; - b5 = (tmp >> 37) | (tmp << (64 - 37)); + b5 = ror64(tmp, 37); b4 -= b5 + k5; b5 -= k6; tmp = b3 ^ b2; - b3 = (tmp >> 9) | (tmp << (64 - 9)); + b3 = ror64(tmp, 9); b2 -= b3 + k3; b3 -= k4; tmp = b1 ^ b0; - b1 = (tmp >> 41) | (tmp << (64 - 41)); + b1 = ror64(tmp, 41); b0 -= b1 + k1; b1 -= k2; tmp = b7 ^ b12; - b7 = (tmp >> 25) | (tmp << (64 - 25)); + b7 = ror64(tmp, 25); b12 -= b7; tmp = b3 ^ b10; - b3 = (tmp >> 16) | (tmp << (64 - 16)); + b3 = ror64(tmp, 16); b10 -= b3; tmp = b5 ^ b8; - b5 = (tmp >> 28) | (tmp << (64 - 28)); + b5 = ror64(tmp, 28); b8 -= b5; tmp = b1 ^ b14; - b1 = (tmp >> 47) | (tmp << (64 - 47)); + b1 = ror64(tmp, 47); b14 -= b1; tmp = b9 ^ b4; - b9 = (tmp >> 41) | (tmp << (64 - 41)); + b9 = ror64(tmp, 41); b4 -= b9; tmp = b13 ^ b6; - b13 = (tmp >> 48) | (tmp << (64 - 48)); + b13 = ror64(tmp, 48); b6 -= b13; tmp = b11 ^ b2; - b11 = (tmp >> 20) | (tmp << (64 - 20)); + b11 = ror64(tmp, 20); b2 -= b11; tmp = b15 ^ b0; - b15 = (tmp >> 5) | (tmp << (64 - 5)); + b15 = ror64(tmp, 5); b0 -= b15; tmp = b9 ^ b10; - b9 = (tmp >> 17) | (tmp << (64 - 17)); + b9 = ror64(tmp, 17); b10 -= b9; tmp = b11 ^ b8; - b11 = (tmp >> 59) | (tmp << (64 - 59)); + b11 = ror64(tmp, 59); b8 -= b11; tmp = b13 ^ b14; - b13 = (tmp >> 41) | (tmp << (64 - 41)); + b13 = ror64(tmp, 41); b14 -= b13; tmp = b15 ^ b12; - b15 = (tmp >> 34) | (tmp << (64 - 34)); + b15 = ror64(tmp, 34); b12 -= b15; tmp = b1 ^ b6; - b1 = (tmp >> 13) | (tmp << (64 - 13)); + b1 = ror64(tmp, 13); b6 -= b1; tmp = b3 ^ b4; - b3 = (tmp >> 51) | (tmp << (64 - 51)); + b3 = ror64(tmp, 51); b4 -= b3; tmp = b5 ^ b2; - b5 = (tmp >> 4) | (tmp << (64 - 4)); + b5 = ror64(tmp, 4); b2 -= b5; tmp = b7 ^ b0; - b7 = (tmp >> 33) | (tmp << (64 - 33)); + b7 = ror64(tmp, 33); b0 -= b7; tmp = b1 ^ b8; - b1 = (tmp >> 52) | (tmp << (64 - 52)); + b1 = ror64(tmp, 52); b8 -= b1; tmp = b5 ^ b14; - b5 = (tmp >> 23) | (tmp << (64 - 23)); + b5 = ror64(tmp, 23); b14 -= b5; tmp = b3 ^ b12; - b3 = (tmp >> 18) | (tmp << (64 - 18)); + b3 = ror64(tmp, 18); b12 -= b3; tmp = b7 ^ b10; - b7 = (tmp >> 49) | (tmp << (64 - 49)); + b7 = ror64(tmp, 49); b10 -= b7; tmp = b15 ^ b4; - b15 = (tmp >> 55) | (tmp << (64 - 55)); + b15 = ror64(tmp, 55); b4 -= b15; tmp = b11 ^ b6; - b11 = (tmp >> 10) | (tmp << (64 - 10)); + b11 = ror64(tmp, 10); b6 -= b11; tmp = b13 ^ b2; - b13 = (tmp >> 19) | (tmp << (64 - 19)); + b13 = ror64(tmp, 19); b2 -= b13; tmp = b9 ^ b0; - b9 = (tmp >> 38) | (tmp << (64 - 38)); + b9 = ror64(tmp, 38); b0 -= b9; tmp = b15 ^ b14; - b15 = (tmp >> 37) | (tmp << (64 - 37)); + b15 = ror64(tmp, 37); b14 -= b15 + k14 + t1; b15 -= k15; tmp = b13 ^ b12; - b13 = (tmp >> 22) | (tmp << (64 - 22)); + b13 = ror64(tmp, 22); b12 -= b13 + k12; b13 -= k13 + t0; tmp = b11 ^ b10; - b11 = (tmp >> 17) | (tmp << (64 - 17)); + b11 = ror64(tmp, 17); b10 -= b11 + k10; b11 -= k11; tmp = b9 ^ b8; - b9 = (tmp >> 8) | (tmp << (64 - 8)); + b9 = ror64(tmp, 8); b8 -= b9 + k8; b9 -= k9; tmp = b7 ^ b6; - b7 = (tmp >> 47) | (tmp << (64 - 47)); + b7 = ror64(tmp, 47); b6 -= b7 + k6; b7 -= k7; tmp = b5 ^ b4; - b5 = (tmp >> 8) | (tmp << (64 - 8)); + b5 = ror64(tmp, 8); b4 -= b5 + k4; b5 -= k5; tmp = b3 ^ b2; - b3 = (tmp >> 13) | (tmp << (64 - 13)); + b3 = ror64(tmp, 13); b2 -= b3 + k2; b3 -= k3; tmp = b1 ^ b0; - b1 = (tmp >> 24) | (tmp << (64 - 24)); + b1 = ror64(tmp, 24); b0 -= b1 + k0; b1 -= k1; -- cgit v0.10.2 From de40f2ab975977375e4620448a2967b69cc3c9cb Mon Sep 17 00:00:00 2001 From: Dilek Uzulmez Date: Sun, 13 Mar 2016 23:31:08 +0200 Subject: Staging: rts5208: Add space around '+' Add space around operator '+'. Problem found using checkpatch.pl CHECK: spaces preferred around that '+' (ctx:VxV) Signed-off-by: Dilek Uzulmez Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rts5208/ms.c b/drivers/staging/rts5208/ms.c index a780185..3e75db7 100644 --- a/drivers/staging/rts5208/ms.c +++ b/drivers/staging/rts5208/ms.c @@ -2691,7 +2691,7 @@ static int ms_build_l2p_tbl(struct rtsx_chip *chip, int seg_no) } if ((log_blk < ms_start_idx[seg_no]) || - (log_blk >= ms_start_idx[seg_no+1])) { + (log_blk >= ms_start_idx[seg_no + 1])) { if (!(chip->card_wp & MS_CARD)) { retval = ms_erase_block(chip, phy_blk); if (retval != STATUS_SUCCESS) @@ -3836,7 +3836,7 @@ static int ms_rw_multi_sector(struct scsi_cmnd *srb, struct rtsx_chip *chip, start_page = (u8)(start_sector & ms_card->page_off); for (seg_no = 0; seg_no < ARRAY_SIZE(ms_start_idx) - 1; seg_no++) { - if (log_blk < ms_start_idx[seg_no+1]) + if (log_blk < ms_start_idx[seg_no + 1]) break; } @@ -4264,7 +4264,7 @@ int mg_set_leaf_id(struct scsi_cmnd *srb, struct rtsx_chip *chip) memset(buf1, 0, 32); rtsx_stor_get_xfer_buf(buf2, min_t(int, 12, scsi_bufflen(srb)), srb); for (i = 0; i < 8; i++) - buf1[8+i] = buf2[4+i]; + buf1[8 + i] = buf2[4 + i]; retval = ms_write_bytes(chip, PRO_WRITE_SHORT_DATA, 32, WAIT_INT, buf1, 32); @@ -4399,10 +4399,10 @@ int mg_chg(struct scsi_cmnd *srb, struct rtsx_chip *chip) rtsx_stor_get_xfer_buf(buf, bufflen, srb); for (i = 0; i < 8; i++) - buf[i] = buf[4+i]; + buf[i] = buf[4 + i]; for (i = 0; i < 24; i++) - buf[8+i] = 0; + buf[8 + i] = 0; retval = ms_write_bytes(chip, PRO_WRITE_SHORT_DATA, 32, WAIT_INT, buf, 32); @@ -4511,10 +4511,10 @@ int mg_rsp(struct scsi_cmnd *srb, struct rtsx_chip *chip) rtsx_stor_get_xfer_buf(buf, bufflen, srb); for (i = 0; i < 8; i++) - buf[i] = buf[4+i]; + buf[i] = buf[4 + i]; for (i = 0; i < 24; i++) - buf[8+i] = 0; + buf[8 + i] = 0; retval = ms_write_bytes(chip, PRO_WRITE_SHORT_DATA, 32, WAIT_INT, buf, 32); -- cgit v0.10.2 From 8aba6c6e9821a83937cccbc7f2292e06e605d340 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sun, 13 Mar 2016 15:48:15 +0530 Subject: Staging: gs_fpgaboot: Fix alignment to match open parenthesis. Fix alignment to match open parenthesis. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c index 7b7c978..de1a9a6 100644 --- a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c +++ b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c @@ -201,7 +201,7 @@ static int gs_download_image(struct fpgaimage *fimage, enum wbus bus_bytes) #endif /* DEBUG_FPGA */ if (!xl_supported_prog_bus_width(bus_bytes)) { pr_err("unsupported program bus width %d\n", - bus_bytes); + bus_bytes); return -1; } @@ -277,7 +277,7 @@ static int gs_set_download_method(struct fpgaimage *fimage) static int init_driver(void) { firmware_pdev = platform_device_register_simple("fpgaboot", -1, - NULL, 0); + NULL, 0); return PTR_ERR_OR_ZERO(firmware_pdev); } -- cgit v0.10.2 From e58463b3415f242bbfad816810eb24454f5a0bb1 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sun, 13 Mar 2016 15:50:03 +0530 Subject: Staging: gs_fpgaboot: Remove unnecessary blank lines. Remove unnecessary blank lines. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c index de1a9a6..1af0745 100644 --- a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c +++ b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c @@ -93,7 +93,6 @@ static int readlength_bitstream(char *bitdata, int *lendata, int *offset) return 0; } - /* * read first 13 bytes to check bitstream magic number */ @@ -331,7 +330,6 @@ err_out1: kfree(fimage); return -1; - } static int __init gs_fpgaboot_init(void) -- cgit v0.10.2 From c5471a6fa66cffdf5c868a9fbec2e06c6fa057c5 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sun, 13 Mar 2016 15:52:15 +0530 Subject: Staging: gs_fpgaboot: Add space around '+'. Add space around '+'. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c index 1af0745..a221f26 100644 --- a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c +++ b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c @@ -221,7 +221,7 @@ static int gs_download_image(struct fpgaimage *fimage, enum wbus bus_bytes) pr_info("device init done\n"); for (i = 0; i < size; i += bus_bytes) - xl_shift_bytes_out(bus_bytes, bitdata+i); + xl_shift_bytes_out(bus_bytes, bitdata + i); pr_info("program done\n"); -- cgit v0.10.2 From c70aa60bdc12347120b0f3277de2ec6c26988a2e Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sun, 13 Mar 2016 16:41:23 +0530 Subject: Staging: gs_fpgaboot: Replace 'int32_t' with 'int'. Replace 'int32_t' with 'int'. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/gs_fpgaboot/gs_fpgaboot.h b/drivers/staging/gs_fpgaboot/gs_fpgaboot.h index f41f4cc..8cc3255 100644 --- a/drivers/staging/gs_fpgaboot/gs_fpgaboot.h +++ b/drivers/staging/gs_fpgaboot/gs_fpgaboot.h @@ -51,6 +51,6 @@ struct fpgaimage { char part[MAX_STR]; char date[MAX_STR]; char time[MAX_STR]; - int32_t lendata; + int lendata; char *fpgadata; }; -- cgit v0.10.2 From abe341744574c3fd076e40f053a6fb2f6e549abc Mon Sep 17 00:00:00 2001 From: Dilek Uzulmez Date: Sun, 13 Mar 2016 23:58:08 +0200 Subject: Staging: emxx_udc: Add space around '-' Add space around operator '-'. Problem found using checkpatch.pl CHECK: spaces preferred around that '-' (ctx:VxV) Signed-off-by: Dilek Uzulmez Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c index e8cacae..58e189b7 100644 --- a/drivers/staging/emxx_udc/emxx_udc.c +++ b/drivers/staging/emxx_udc/emxx_udc.c @@ -418,9 +418,9 @@ static void _nbu2ss_ep_dma_abort(struct nbu2ss_udc *udc, struct nbu2ss_ep *ep) { struct fc_regs *preg = udc->p_regs; - _nbu2ss_bitclr(&preg->EP_DCR[ep->epnum-1].EP_DCR1, DCR1_EPn_REQEN); + _nbu2ss_bitclr(&preg->EP_DCR[ep->epnum - 1].EP_DCR1, DCR1_EPn_REQEN); mdelay(DMA_DISABLE_TIME); /* DCR1_EPn_REQEN Clear */ - _nbu2ss_bitclr(&preg->EP_REGS[ep->epnum-1].EP_DMA_CTRL, EPn_DMA_EN); + _nbu2ss_bitclr(&preg->EP_REGS[ep->epnum - 1].EP_DMA_CTRL, EPn_DMA_EN); } /*-------------------------------------------------------------------------*/ @@ -909,7 +909,7 @@ static int _nbu2ss_epn_out_pio( /* Copy of every four bytes */ for (i = 0; i < iWordLength; i++) { pBuf32->dw = - _nbu2ss_readl(&preg->EP_REGS[ep->epnum-1].EP_READ); + _nbu2ss_readl(&preg->EP_REGS[ep->epnum - 1].EP_READ); pBuf32++; } result = iWordLength * sizeof(u32); @@ -919,7 +919,7 @@ static int _nbu2ss_epn_out_pio( if (data > 0) { /*---------------------------------------------------------*/ /* Copy of fraction byte */ - Temp32.dw = _nbu2ss_readl(&preg->EP_REGS[ep->epnum-1].EP_READ); + Temp32.dw = _nbu2ss_readl(&preg->EP_REGS[ep->epnum - 1].EP_READ); for (i = 0 ; i < data ; i++) pBuf32->byte.DATA[i] = Temp32.byte.DATA[i]; result += data; @@ -1128,7 +1128,7 @@ static int _nbu2ss_epn_in_pio( if (iWordLength > 0) { for (i = 0; i < iWordLength; i++) { _nbu2ss_writel( - &preg->EP_REGS[ep->epnum-1].EP_WRITE + &preg->EP_REGS[ep->epnum - 1].EP_WRITE , pBuf32->dw ); @@ -1290,7 +1290,7 @@ static void _nbu2ss_restert_transfer(struct nbu2ss_ep *ep) if (ep->epnum > 0) { length = _nbu2ss_readl( - &ep->udc->p_regs->EP_REGS[ep->epnum-1].EP_LEN_DCNT); + &ep->udc->p_regs->EP_REGS[ep->epnum - 1].EP_LEN_DCNT); length &= EPn_LDATA; if (length < ep->ep.maxpacket) @@ -1463,7 +1463,7 @@ static int _nbu2ss_get_ep_stall(struct nbu2ss_udc *udc, u8 ep_adrs) bit_data = EP0_STL; } else { - data = _nbu2ss_readl(&preg->EP_REGS[epnum-1].EP_CONTROL); + data = _nbu2ss_readl(&preg->EP_REGS[epnum - 1].EP_CONTROL); if ((data & EPn_EN) == 0) return -1; @@ -1558,7 +1558,7 @@ static void _nbu2ss_epn_set_stall( ; limit_cnt++) { regdata = _nbu2ss_readl( - &preg->EP_REGS[ep->epnum-1].EP_STATUS); + &preg->EP_REGS[ep->epnum - 1].EP_STATUS); if ((regdata & EPn_IN_DATA) == 0) break; @@ -1983,7 +1983,7 @@ static inline void _nbu2ss_epn_in_int( if (req->zero && ((req->req.actual % ep->ep.maxpacket) == 0)) { status = - _nbu2ss_readl(&preg->EP_REGS[ep->epnum-1].EP_STATUS); + _nbu2ss_readl(&preg->EP_REGS[ep->epnum - 1].EP_STATUS); if ((status & EPn_IN_FULL) == 0) { /*-----------------------------------------*/ @@ -2894,7 +2894,7 @@ static int nbu2ss_ep_fifo_status(struct usb_ep *_ep) data = _nbu2ss_readl(&preg->EP0_LENGTH) & EP0_LDATA; } else { - data = _nbu2ss_readl(&preg->EP_REGS[ep->epnum-1].EP_LEN_DCNT) + data = _nbu2ss_readl(&preg->EP_REGS[ep->epnum - 1].EP_LEN_DCNT) & EPn_LDATA; } -- cgit v0.10.2 From b6d3b4577e49fa8d9a37912ea36ae8449d630b0b Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Fri, 18 Mar 2016 13:56:00 +0530 Subject: Staging: emxx_udc: emxx_udc: Add space around operator. Add space around operator.This patch is found by checkpatch.pl script. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/emxx_udc/emxx_udc.h b/drivers/staging/emxx_udc/emxx_udc.h index 4a2cc38..39769e3 100644 --- a/drivers/staging/emxx_udc/emxx_udc.h +++ b/drivers/staging/emxx_udc/emxx_udc.h @@ -97,7 +97,7 @@ #define BIT30 0x40000000 #define BIT31 0x80000000 -#define TEST_FORCE_ENABLE (BIT18+BIT16) +#define TEST_FORCE_ENABLE (BIT18 + BIT16) #define INT_SEL BIT10 #define CONSTFS BIT09 @@ -125,15 +125,15 @@ /*------- (0x0008) USB Address Register */ #define USB_ADDR 0x007F0000 #define SOF_STATUS BIT15 -#define UFRAME (BIT14+BIT13+BIT12) +#define UFRAME (BIT14 + BIT13 + BIT12) #define FRAME 0x000007FF #define USB_ADRS_SHIFT 16 /*------- (0x000C) UTMI Characteristic 1 Register */ -#define SQUSET (BIT07+BIT06+BIT05+BIT04) +#define SQUSET (BIT07 + BIT06 + BIT05 + BIT04) -#define USB_SQUSET (BIT06+BIT05+BIT04) +#define USB_SQUSET (BIT06 + BIT05 + BIT04) /*------- (0x0010) TEST Control Register */ #define FORCEHS BIT02 @@ -196,7 +196,7 @@ #define RSUM_EN BIT01 #define USB_INT_EN_BIT \ - (EP0_EN|SPEED_MODE_EN|USB_RST_EN|SPND_EN|RSUM_EN) + (EP0_EN | SPEED_MODE_EN | USB_RST_EN | SPND_EN | RSUM_EN) /*------- (0x0028) EP0 Control Register */ #define EP0_STGSEL BIT18 @@ -205,9 +205,9 @@ #define EP0_PIDCLR BIT09 #define EP0_BCLR BIT08 #define EP0_DEND BIT07 -#define EP0_DW (BIT06+BIT05) +#define EP0_DW (BIT06 + BIT05) #define EP0_DW4 0 -#define EP0_DW3 (BIT06+BIT05) +#define EP0_DW3 (BIT06 + BIT05) #define EP0_DW2 BIT06 #define EP0_DW1 BIT05 @@ -238,7 +238,7 @@ #define STG_START_INT BIT01 #define SETUP_INT BIT00 -#define EP0_STATUS_RW_BIT (BIT16|BIT15|BIT11|0xFF) +#define EP0_STATUS_RW_BIT (BIT16 | BIT15 | BIT11 | 0xFF) /*------- (0x0030) EP0 Interrupt Enable Register */ #define EP0_PERR_NAK_EN BIT16 @@ -256,7 +256,7 @@ #define SETUP_EN BIT00 #define EP0_INT_EN_BIT \ - (EP0_OUT_OR_EN|EP0_OUT_EN|EP0_IN_EN|STG_END_EN|SETUP_EN) + (EP0_OUT_OR_EN | EP0_OUT_EN | EP0_IN_EN | STG_END_EN | SETUP_EN) /*------- (0x0034) EP0 Length Register */ #define EP0_LDATA 0x0000007F @@ -270,7 +270,7 @@ #define EPn_BUF_SINGLE BIT30 #define EPn_DIR0 BIT26 -#define EPn_MODE (BIT25+BIT24) +#define EPn_MODE (BIT25 + BIT24) #define EPn_BULK 0 #define EPn_INTERRUPT BIT24 #define EPn_ISO BIT25 @@ -283,9 +283,9 @@ #define EPn_BCLR BIT09 #define EPn_CBCLR BIT08 #define EPn_DEND BIT07 -#define EPn_DW (BIT06+BIT05) +#define EPn_DW (BIT06 + BIT05) #define EPn_DW4 0 -#define EPn_DW3 (BIT06+BIT05) +#define EPn_DW3 (BIT06 + BIT05) #define EPn_DW2 BIT06 #define EPn_DW1 BIT05 @@ -324,7 +324,7 @@ #define EPn_IN_EMPTY BIT00 /* R */ #define EPn_INT_EN \ - (EPn_OUT_END_INT|EPn_OUT_INT|EPn_IN_END_INT|EPn_IN_INT) + (EPn_OUT_END_INT | EPn_OUT_INT | EPn_IN_END_INT | EPn_IN_INT) /*------- (0x0048:) EPn Interrupt Enable Register */ #define EPn_OUT_END_EN BIT23 /* RW */ @@ -368,7 +368,7 @@ #define ARBITER_CTR BIT31 /* RW */ #define MCYCLE_RST BIT12 /* RW */ -#define ENDIAN_CTR (BIT09+BIT08) /* RW */ +#define ENDIAN_CTR (BIT09 + BIT08) /* RW */ #define ENDIAN_BYTE_SWAP BIT09 #define ENDIAN_HALF_WORD_SWAP ENDIAN_CTR @@ -376,7 +376,7 @@ #define HTRANS_MODE BIT04 /* RW */ #define WBURST_TYPE BIT02 /* RW */ -#define BURST_TYPE (BIT01+BIT00) /* RW */ +#define BURST_TYPE (BIT01 + BIT00) /* RW */ #define BURST_MAX_16 0 #define BURST_MAX_8 BIT00 #define BURST_MAX_4 BIT01 @@ -412,7 +412,7 @@ #define EPC_RST BIT00 /* RW */ /*------- (0x1014) USBF_EPTEST Register */ -#define LINESTATE (BIT09+BIT08) /* R */ +#define LINESTATE (BIT09 + BIT08) /* R */ #define DM_LEVEL BIT09 /* R */ #define DP_LEVEL BIT08 /* R */ @@ -485,7 +485,7 @@ struct fc_regs { struct ep_regs EP_REGS[REG_EP_NUM]; /* Endpoint Register */ - u8 Reserved220[0x1000-0x220]; /* (0x0220:0x0FFF) Reserved */ + u8 Reserved220[0x1000 - 0x220]; /* (0x0220:0x0FFF) Reserved */ u32 AHBSCTR; /* (0x1000) AHBSCTR */ u32 AHBMCTR; /* (0x1004) AHBMCTR */ @@ -494,16 +494,16 @@ struct fc_regs { u32 EPCTR; /* (0x1010) EPCTR */ u32 USBF_EPTEST; /* (0x1014) USBF_EPTEST */ - u8 Reserved1018[0x20-0x18]; /* (0x1018:0x101F) Reserved */ + u8 Reserved1018[0x20 - 0x18]; /* (0x1018:0x101F) Reserved */ u32 USBSSVER; /* (0x1020) USBSSVER */ u32 USBSSCONF; /* (0x1024) USBSSCONF */ - u8 Reserved1028[0x110-0x28]; /* (0x1028:0x110F) Reserved */ + u8 Reserved1028[0x110 - 0x28]; /* (0x1028:0x110F) Reserved */ struct ep_dcr EP_DCR[REG_EP_NUM]; /* */ - u8 Reserved1200[0x1000-0x200]; /* Reserved */ + u8 Reserved1200[0x1000 - 0x200]; /* Reserved */ } __aligned(32); #define EP0_PACKETSIZE 64 -- cgit v0.10.2 From 364076730cd046ab347f5883cf9193f33adea1da Mon Sep 17 00:00:00 2001 From: Heena Sirwani Date: Mon, 14 Mar 2016 17:23:00 +0530 Subject: staging: media: omap4iss: Match alignment with open parenthesis. The following patch fixes the following checkpatch.pl warning: CHECK: Alignment should match open parenthesis Signed-off-by: Heena Sirwani Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c index c5a5138..6ceb4eb 100644 --- a/drivers/staging/media/omap4iss/iss.c +++ b/drivers/staging/media/omap4iss/iss.c @@ -1065,7 +1065,7 @@ static int iss_register_entities(struct iss_device *iss) } ret = media_create_pad_link(&sensor->entity, 0, input, pad, - flags); + flags); if (ret < 0) goto done; } -- cgit v0.10.2 From 8cd977c3166e448684aba578df6e00dad83d990c Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Fri, 18 Mar 2016 14:56:31 +0530 Subject: Staging: fbtft: fbtft_device: No space is necessary after cast. No space is necessary after cast. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fbtft/fbtft_device.c b/drivers/staging/fbtft/fbtft_device.c index 241d7c6..e4a355a 100644 --- a/drivers/staging/fbtft/fbtft_device.c +++ b/drivers/staging/fbtft/fbtft_device.c @@ -1254,7 +1254,7 @@ static int write_gpio16_wr_slow(struct fbtft_par *par, void *buf, size_t len) "%s(len=%d): ", __func__, len); while (len) { - data = *(u16 *) buf; + data = *(u16 *)buf; /* Start writing by pulling down /WR */ gpio_set_value(par->gpio.wr, 0); @@ -1283,7 +1283,7 @@ static int write_gpio16_wr_slow(struct fbtft_par *par, void *buf, size_t len) gpio_set_value(par->gpio.wr, 1); #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO - prev_data = *(u16 *) buf; + prev_data = *(u16 *)buf; #endif buf += 2; len -= 2; @@ -1436,7 +1436,7 @@ static int __init fbtft_device_init(void) } strncpy(fbtft_device_param_gpios[i].name, p_name, FBTFT_GPIO_NAME_SIZE - 1); - fbtft_device_param_gpios[i++].gpio = (int) val; + fbtft_device_param_gpios[i++].gpio = (int)val; if (i == MAX_GPIOS) { pr_err("gpios parameter: exceeded max array size: %d\n", MAX_GPIOS); -- cgit v0.10.2 From 8d771ea8bf27ae02bf185bd32c67f4d314865945 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Fri, 18 Mar 2016 14:59:34 +0530 Subject: Staging: fbtft: fbtft-io: No space is necessary after cast. No space is necessary after cast.This patch is found by checkpatch.pl script. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fbtft/fbtft-io.c b/drivers/staging/fbtft/fbtft-io.c index a6f091f..4dcea2e 100644 --- a/drivers/staging/fbtft/fbtft-io.c +++ b/drivers/staging/fbtft/fbtft-io.c @@ -141,7 +141,7 @@ int fbtft_write_gpio8_wr(struct fbtft_par *par, void *buf, size_t len) "%s(len=%d): ", __func__, len); while (len--) { - data = *(u8 *) buf; + data = *(u8 *)buf; /* Start writing by pulling down /WR */ gpio_set_value(par->gpio.wr, 0); @@ -170,7 +170,7 @@ int fbtft_write_gpio8_wr(struct fbtft_par *par, void *buf, size_t len) gpio_set_value(par->gpio.wr, 1); #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO - prev_data = *(u8 *) buf; + prev_data = *(u8 *)buf; #endif buf++; } @@ -191,7 +191,7 @@ int fbtft_write_gpio16_wr(struct fbtft_par *par, void *buf, size_t len) "%s(len=%d): ", __func__, len); while (len) { - data = *(u16 *) buf; + data = *(u16 *)buf; /* Start writing by pulling down /WR */ gpio_set_value(par->gpio.wr, 0); @@ -220,7 +220,7 @@ int fbtft_write_gpio16_wr(struct fbtft_par *par, void *buf, size_t len) gpio_set_value(par->gpio.wr, 1); #ifndef DO_NOT_OPTIMIZE_FBTFT_WRITE_GPIO - prev_data = *(u16 *) buf; + prev_data = *(u16 *)buf; #endif buf += 2; len -= 2; -- cgit v0.10.2 From 60abe3510e55cbd74a1ed163fed75a25cae8d45c Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Fri, 18 Mar 2016 15:02:41 +0530 Subject: Staging: fbtft: fb_agm1264k-fl: No space is necessary after cast. No space is necessary after cast.This problem is found by checkpatch.pl script. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c index ba9fc44..82b46cd 100644 --- a/drivers/staging/fbtft/fb_agm1264k-fl.c +++ b/drivers/staging/fbtft/fb_agm1264k-fl.c @@ -414,7 +414,7 @@ static int write(struct fbtft_par *par, void *buf, size_t len) while (len--) { u8 i, data; - data = *(u8 *) buf++; + data = *(u8 *)buf++; /* set data bus */ for (i = 0; i < 8; ++i) -- cgit v0.10.2 From f3fe438db281cc2d115843d27c7e196bf7404d3c Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sun, 20 Mar 2016 16:47:28 +0530 Subject: Staging: i4l: pcbit: layer2: Add parentheses to complex macro. Add parentheses to complex macro. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/i4l/pcbit/layer2.h b/drivers/staging/i4l/pcbit/layer2.h index be1327b..6b9063e 100644 --- a/drivers/staging/i4l/pcbit/layer2.h +++ b/drivers/staging/i4l/pcbit/layer2.h @@ -109,7 +109,7 @@ #define SCHED_READ 0x01 #define SCHED_WRITE 0x02 -#define SET_RUN_TIMEOUT 2 * HZ /* 2 seconds */ +#define SET_RUN_TIMEOUT (2 * HZ) /* 2 seconds */ struct frame_buf { ulong msg; -- cgit v0.10.2 From f2cef3f2db6647975bb7e8a83fcdfc52146b55c0 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sun, 20 Mar 2016 16:49:02 +0530 Subject: Staging: i4l: pcbit: edss1: Use !x instead of x == NULL. Use !x instead of x == NULL. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/i4l/pcbit/edss1.c b/drivers/staging/i4l/pcbit/edss1.c index b2262ba..e72c164 100644 --- a/drivers/staging/i4l/pcbit/edss1.c +++ b/drivers/staging/i4l/pcbit/edss1.c @@ -254,7 +254,7 @@ static void pcbit_fsm_timer(unsigned long data) dev = chan2dev(chan); - if (dev == NULL) { + if (!dev) { printk(KERN_WARNING "pcbit: timer for unknown device\n"); return; } -- cgit v0.10.2 From 3e735d1e3a9a045cbd2610ff33e9fd355d09e632 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sun, 20 Mar 2016 16:50:49 +0530 Subject: Staging: i4l: pcbit: drv: Do not initialise statics to 0. Do not initialise statics to 0. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/i4l/pcbit/drv.c b/drivers/staging/i4l/pcbit/drv.c index 4172e22..c79ee84 100644 --- a/drivers/staging/i4l/pcbit/drv.c +++ b/drivers/staging/i4l/pcbit/drv.c @@ -699,8 +699,8 @@ void pcbit_l3_receive(struct pcbit_dev *dev, ulong msg, */ static char statbuf[STATBUF_LEN]; -static int stat_st = 0; -static int stat_end = 0; +static int stat_st; +static int stat_end; static int pcbit_stat(u_char __user *buf, int len, int driver, int channel) { -- cgit v0.10.2 From 8c9a093e1cec027bec070134fd56d9ae98b080a8 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sun, 20 Mar 2016 16:52:35 +0530 Subject: Staging: i4l: pcbit: capi: Add parentheses to complex macro. Add parentheses to complex macro. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/i4l/pcbit/capi.h b/drivers/staging/i4l/pcbit/capi.h index 635f634..6f6f4dd 100644 --- a/drivers/staging/i4l/pcbit/capi.h +++ b/drivers/staging/i4l/pcbit/capi.h @@ -17,7 +17,7 @@ #define REQ_DISPLAY 0x04 #define REQ_USER_TO_USER 0x08 -#define AppInfoMask REQ_CAUSE | REQ_DISPLAY | REQ_USER_TO_USER +#define AppInfoMask (REQ_CAUSE | REQ_DISPLAY | REQ_USER_TO_USER) /* Connection Setup */ extern int capi_conn_req(const char *calledPN, struct sk_buff **buf, -- cgit v0.10.2 From 5c722af4c454c881349fec4f8ee3a4ee0a2a77ed Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Fri, 18 Mar 2016 08:45:08 +0530 Subject: Staging: i4l: pcbit: drv: Remove unnecessary semicolon. Remove unnecessary semicolon.This issue is detected by coccinelle script. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/i4l/pcbit/drv.c b/drivers/staging/i4l/pcbit/drv.c index c79ee84..c5270e2 100644 --- a/drivers/staging/i4l/pcbit/drv.c +++ b/drivers/staging/i4l/pcbit/drv.c @@ -284,7 +284,7 @@ static int pcbit_command(isdn_ctrl *ctl) default: printk(KERN_DEBUG "pcbit_command: unknown command\n"); break; - }; + } return 0; } @@ -968,7 +968,7 @@ static int pcbit_ioctl(isdn_ctrl *ctl) default: printk("error: unknown ioctl\n"); break; - }; + } return 0; } -- cgit v0.10.2 From bb94df96f7a260ff0d4384719fd8cac477e4c31d Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 18:06:03 +0530 Subject: Staging: lustre: lib-move: Remove unnecessary space after cast. Remove unnecessary space after cast. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c index 0009a8d..44e2bd6 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-move.c +++ b/drivers/staging/lustre/lnet/lnet/lib-move.c @@ -407,7 +407,7 @@ lnet_copy_kiov2iov(unsigned int niov, struct kvec *iov, unsigned int iovoffset, LASSERT(niov > 0); LASSERT(nkiov > 0); this_nob = min(iov->iov_len - iovoffset, - (__kernel_size_t) kiov->kiov_len - kiovoffset); + (__kernel_size_t)kiov->kiov_len - kiovoffset); this_nob = min(this_nob, nob); if (!addr) @@ -477,7 +477,7 @@ lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov, do { LASSERT(nkiov > 0); LASSERT(niov > 0); - this_nob = min((__kernel_size_t) kiov->kiov_len - kiovoffset, + this_nob = min((__kernel_size_t)kiov->kiov_len - kiovoffset, iov->iov_len - iovoffset); this_nob = min(this_nob, nob); @@ -996,7 +996,7 @@ lnet_return_tx_credits_locked(lnet_msg_t *msg) LASSERT(msg2->msg_txpeer->lp_ni == ni); LASSERT(msg2->msg_tx_delayed); - (void) lnet_post_send_locked(msg2, 1); + (void)lnet_post_send_locked(msg2, 1); } } @@ -1019,7 +1019,7 @@ lnet_return_tx_credits_locked(lnet_msg_t *msg) LASSERT(msg2->msg_txpeer == txpeer); LASSERT(msg2->msg_tx_delayed); - (void) lnet_post_send_locked(msg2, 1); + (void)lnet_post_send_locked(msg2, 1); } } @@ -1142,7 +1142,7 @@ routing_off: lnet_msg_t, msg_list); list_del(&msg2->msg_list); - (void) lnet_post_routed_recv_locked(msg2, 1); + (void)lnet_post_routed_recv_locked(msg2, 1); } } if (rxpeer) { -- cgit v0.10.2 From 4f296211583ade450f25a14be0a669a309ea6303 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 19:15:24 +0530 Subject: Staging: lustre: socklnd_lib: Remove return statement from void function. Remove return statement from void function. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c index 3e1f24e..acebc6f 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c @@ -675,7 +675,6 @@ ksocknal_lib_set_callback(struct socket *sock, ksock_conn_t *conn) sock->sk->sk_user_data = conn; sock->sk->sk_data_ready = ksocknal_data_ready; sock->sk->sk_write_space = ksocknal_write_space; - return; } void @@ -695,8 +694,6 @@ ksocknal_lib_reset_callback(struct socket *sock, ksock_conn_t *conn) * sk_user_data is NULL. */ sock->sk->sk_user_data = NULL; - - return ; } int -- cgit v0.10.2 From 4ec4595272240b21365b6563c24b1e22570c3880 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 19:16:48 +0530 Subject: Staging: lustre: socklnd: Remove return statement from void function. Remove return statement from void function. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c index cca7b2f..406c0e7 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c @@ -2582,7 +2582,6 @@ ksocknal_debug_peerhash(lnet_ni_t *ni) } read_unlock(&ksocknal_data.ksnd_global_lock); - return; } void -- cgit v0.10.2 From 9899cb68c6c23d58b27035c237b2d425f4c6133c Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 19:51:12 +0530 Subject: Staging: lustre: rpc: Use sizeof type *pointer instead of sizeof type. Use sizeof type *pointer instead of sizeof type. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index ab8ba37..5d8908d 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -256,7 +256,7 @@ srpc_service_init(struct srpc_service *svc) svc->sv_shuttingdown = 0; svc->sv_cpt_data = cfs_percpt_alloc(lnet_cpt_table(), - sizeof(struct srpc_service_cd)); + sizeof(*svc->sv_cpt_data)); if (!svc->sv_cpt_data) return -ENOMEM; -- cgit v0.10.2 From 017168b5fd913df50a80b65b9c086066f1484a13 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 19:52:44 +0530 Subject: Staging: lustre: o2iblnd: Use sizeof type *pointer instead of sizeof type. Use sizeof type *pointer instead of sizeof type. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 0d32e65..89f93909 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -1968,7 +1968,7 @@ static int kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts) */ net->ibn_fmr_ps = cfs_percpt_alloc(lnet_cpt_table(), - sizeof(kib_fmr_poolset_t)); + sizeof(*net->ibn_fmr_ps)); if (!net->ibn_fmr_ps) { CERROR("Failed to allocate FMR pool array\n"); rc = -ENOMEM; @@ -1992,7 +1992,7 @@ static int kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts) create_tx_pool: net->ibn_tx_ps = cfs_percpt_alloc(lnet_cpt_table(), - sizeof(kib_tx_poolset_t)); + sizeof(*net->ibn_tx_ps)); if (!net->ibn_tx_ps) { CERROR("Failed to allocate tx pool array\n"); rc = -ENOMEM; -- cgit v0.10.2 From a6634f83402c5c8baf636998143f956feecfa770 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Mon, 21 Mar 2016 15:39:53 -0700 Subject: staging: iio: use kernel preferred block commenting style Use * on subsequent lines and trailing */ on a separate line in block comments. Signed-off-by: Alison Schofield Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c index f843f19..f91468e 100644 --- a/drivers/staging/iio/adc/ad7192.c +++ b/drivers/staging/iio/adc/ad7192.c @@ -35,10 +35,10 @@ #define AD7192_REG_DATA 3 /* Data Register (RO, 24/32-bit) */ #define AD7192_REG_ID 4 /* ID Register (RO, 8-bit) */ #define AD7192_REG_GPOCON 5 /* GPOCON Register (RO, 8-bit) */ -#define AD7192_REG_OFFSET 6 /* Offset Register (RW, 16-bit - * (AD7792)/24-bit (AD7192)) */ -#define AD7192_REG_FULLSALE 7 /* Full-Scale Register - * (RW, 16-bit (AD7792)/24-bit (AD7192)) */ +#define AD7192_REG_OFFSET 6 /* Offset Register (RW, 16-bit */ + /* (AD7792)/24-bit (AD7192)) */ +#define AD7192_REG_FULLSALE 7 /* Full-Scale Register */ + /* (RW, 16-bit (AD7792)/24-bit (AD7192)) */ /* Communications Register Bit Designations (AD7192_REG_COMM) */ #define AD7192_COMM_WEN BIT(7) /* Write Enable */ @@ -80,13 +80,13 @@ #define AD7192_MODE_CAL_SYS_FULL 7 /* System Full-Scale Calibration */ /* Mode Register: AD7192_MODE_CLKSRC options */ -#define AD7192_CLK_EXT_MCLK1_2 0 /* External 4.92 MHz Clock connected - * from MCLK1 to MCLK2 */ +#define AD7192_CLK_EXT_MCLK1_2 0 /* External 4.92 MHz Clock connected*/ + /* from MCLK1 to MCLK2 */ #define AD7192_CLK_EXT_MCLK2 1 /* External Clock applied to MCLK2 */ -#define AD7192_CLK_INT 2 /* Internal 4.92 MHz Clock not - * available at the MCLK2 pin */ -#define AD7192_CLK_INT_CO 3 /* Internal 4.92 MHz Clock available - * at the MCLK2 pin */ +#define AD7192_CLK_INT 2 /* Internal 4.92 MHz Clock not */ + /* available at the MCLK2 pin */ +#define AD7192_CLK_INT_CO 3 /* Internal 4.92 MHz Clock available*/ + /* at the MCLK2 pin */ /* Configuration Register Bit Designations (AD7192_REG_CONF) */ diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c index 620b33a..e6fdb3d 100644 --- a/drivers/staging/iio/impedance-analyzer/ad5933.c +++ b/drivers/staging/iio/impedance-analyzer/ad5933.c @@ -691,8 +691,9 @@ static void ad5933_work(struct work_struct *work) } if (status & AD5933_STAT_SWEEP_DONE) { - /* last sample received - power down do nothing until - * the ring enable is toggled */ + /* last sample received - power down do + * nothing until the ring enable is toggled + */ ad5933_cmd(st, AD5933_CTRL_POWER_DOWN); } else { /* we just received a valid datum, move on to the next */ diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c index b0bc99a..4b5f05f 100644 --- a/drivers/staging/iio/meter/ade7753.c +++ b/drivers/staging/iio/meter/ade7753.c @@ -333,7 +333,8 @@ static int ade7753_set_irq(struct device *dev, bool enable) if (enable) irqen |= BIT(3); /* Enables an interrupt when a data is - present in the waveform register */ + * present in the waveform register + */ else irqen &= ~BIT(3); diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c index fed1180..c46bef64 100644 --- a/drivers/staging/iio/meter/ade7754.c +++ b/drivers/staging/iio/meter/ade7754.c @@ -351,7 +351,8 @@ static int ade7754_set_irq(struct device *dev, bool enable) if (enable) irqen |= BIT(14); /* Enables an interrupt when a data is - present in the waveform register */ + * present in the waveform register + */ else irqen &= ~BIT(14); diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c index 3102965..ebb8a19 100644 --- a/drivers/staging/iio/meter/ade7758_core.c +++ b/drivers/staging/iio/meter/ade7758_core.c @@ -413,7 +413,8 @@ int ade7758_set_irq(struct device *dev, bool enable) if (enable) irqen |= BIT(16); /* Enables an interrupt when a data is - present in the waveform register */ + * present in the waveform register + */ else irqen &= ~BIT(16); diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c index c14892d..80144d4 100644 --- a/drivers/staging/iio/meter/ade7759.c +++ b/drivers/staging/iio/meter/ade7759.c @@ -289,7 +289,8 @@ static int ade7759_set_irq(struct device *dev, bool enable) if (enable) irqen |= BIT(3); /* Enables an interrupt when a data is - present in the waveform register */ + * present in the waveform register + */ else irqen &= ~BIT(3); diff --git a/drivers/staging/iio/meter/ade7854.c b/drivers/staging/iio/meter/ade7854.c index 9e439af..75e8685 100644 --- a/drivers/staging/iio/meter/ade7854.c +++ b/drivers/staging/iio/meter/ade7854.c @@ -421,7 +421,8 @@ static int ade7854_set_irq(struct device *dev, bool enable) if (enable) irqen |= BIT(17); /* 1: interrupt enabled when all periodical - (at 8 kHz rate) DSP computations finish. */ + * (at 8 kHz rate) DSP computations finish. + */ else irqen &= ~BIT(17); -- cgit v0.10.2 From 968b4e6bd3b00c3c05715f916e27439ff71c737d Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sat, 19 Mar 2016 11:44:05 +0530 Subject: Staging: netlogic: Remove & from function name. Remove & from function name,when function name passed as an argument to another function. Function name is used as pointer without &. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/netlogic/xlr_net.c b/drivers/staging/netlogic/xlr_net.c index aa1cdf6..99445d0 100644 --- a/drivers/staging/netlogic/xlr_net.c +++ b/drivers/staging/netlogic/xlr_net.c @@ -850,7 +850,7 @@ static int xlr_mii_probe(struct xlr_net_priv *priv) /* Attach MAC to PHY */ phydev = phy_connect(priv->ndev, phydev_name(phydev), - &xlr_gmac_link_adjust, priv->nd->phy_interface); + xlr_gmac_link_adjust, priv->nd->phy_interface); if (IS_ERR(phydev)) { pr_err("could not attach PHY\n"); -- cgit v0.10.2 From 6c1c9f9d5a079f3139d4dd34836da6eb49cbd5d4 Mon Sep 17 00:00:00 2001 From: Ben Marsh Date: Mon, 14 Mar 2016 17:40:20 +0100 Subject: Staging: rtl8192u: remove extra blank lines. This patch removes blank lines in r8192U_wx.c that were flagged by checkpatch.pl Signed-off-by: Ben Marsh Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8192u/r8192U_wx.c b/drivers/staging/rtl8192u/r8192U_wx.c index f828e64..837704d 100644 --- a/drivers/staging/rtl8192u/r8192U_wx.c +++ b/drivers/staging/rtl8192u/r8192U_wx.c @@ -30,7 +30,6 @@ static const u32 rtl8180_rates[] = {1000000, 2000000, 5500000, 11000000, 6000000, 9000000, 12000000, 18000000, 24000000, 36000000, 48000000, 54000000}; - #ifndef ENETDOWN #define ENETDOWN 1 #endif @@ -44,7 +43,6 @@ static int r8192_wx_get_freq(struct net_device *dev, return ieee80211_wx_get_freq(priv->ieee80211, a, wrqu, b); } - static int r8192_wx_get_mode(struct net_device *dev, struct iw_request_info *a, union iwreq_data *wrqu, char *b) { @@ -53,8 +51,6 @@ static int r8192_wx_get_mode(struct net_device *dev, struct iw_request_info *a, return ieee80211_wx_get_mode(priv->ieee80211, a, wrqu, b); } - - static int r8192_wx_get_rate(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) @@ -64,8 +60,6 @@ static int r8192_wx_get_rate(struct net_device *dev, return ieee80211_wx_get_rate(priv->ieee80211, info, wrqu, extra); } - - static int r8192_wx_set_rate(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) @@ -82,7 +76,6 @@ static int r8192_wx_set_rate(struct net_device *dev, return ret; } - static int r8192_wx_set_rts(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) @@ -148,7 +141,6 @@ static int r8192_wx_force_reset(struct net_device *dev, } - static int r8192_wx_set_rawtx(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) @@ -301,7 +293,6 @@ static int rtl8180_wx_get_range(struct net_device *dev, /* range->min_r_time; */ /* Minimal retry lifetime */ /* range->max_r_time; */ /* Maximal retry lifetime */ - for (i = 0, val = 0; i < 14; i++) { /* Include only legal frequencies for some countries */ @@ -326,7 +317,6 @@ static int rtl8180_wx_get_range(struct net_device *dev, return 0; } - static int r8192_wx_set_scan(struct net_device *dev, struct iw_request_info *a, union iwreq_data *wrqu, char *b) { @@ -396,9 +386,6 @@ static int r8192_wx_set_essid(struct net_device *dev, return ret; } - - - static int r8192_wx_get_essid(struct net_device *dev, struct iw_request_info *a, union iwreq_data *wrqu, char *b) @@ -415,7 +402,6 @@ static int r8192_wx_get_essid(struct net_device *dev, return ret; } - static int r8192_wx_set_freq(struct net_device *dev, struct iw_request_info *a, union iwreq_data *wrqu, char *b) { @@ -439,7 +425,6 @@ static int r8192_wx_get_name(struct net_device *dev, return ieee80211_wx_get_name(priv->ieee80211, info, wrqu, extra); } - static int r8192_wx_set_frag(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) @@ -493,7 +478,6 @@ static int r8192_wx_set_wap(struct net_device *dev, } - static int r8192_wx_get_wap(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) @@ -503,7 +487,6 @@ static int r8192_wx_get_wap(struct net_device *dev, return ieee80211_wx_get_wap(priv->ieee80211, info, wrqu, extra); } - static int r8192_wx_get_enc(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *key) @@ -695,7 +678,6 @@ static int r8192_wx_get_retry(struct net_device *dev, wrqu->retry.value = priv->retry_data; } - return 0; } @@ -711,7 +693,6 @@ static int r8192_wx_get_sens(struct net_device *dev, return 0; } - static int r8192_wx_set_sens(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra) @@ -862,7 +843,6 @@ static int dummy(struct net_device *dev, struct iw_request_info *a, return -1; } - static iw_handler r8192_wx_handlers[] = { NULL, /* SIOCSIWCOMMIT */ r8192_wx_get_name, /* SIOCGIWNAME */ @@ -949,7 +929,6 @@ static const struct iw_priv_args r8192_private_args[] = { }; - static iw_handler r8192_private_handler[] = { r8192_wx_set_crcmon, r8192_wx_set_scan_type, @@ -985,7 +964,6 @@ struct iw_statistics *r8192_get_wireless_stats(struct net_device *dev) return wstats; } - struct iw_handler_def r8192_wx_handlers_def = { .standard = r8192_wx_handlers, .num_standard = ARRAY_SIZE(r8192_wx_handlers), -- cgit v0.10.2 From 46347b3e096c649adcbe902798eb31c47ad5637c Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Fri, 18 Mar 2016 09:15:45 +0530 Subject: Staging: rtl8192u: Remove unnecessary semicolon. Remove unnecessary semicolon.This issue is found by coccinelle script. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8192u/r8190_rtl8256.c b/drivers/staging/rtl8192u/r8190_rtl8256.c index 5c3bb3b..d733fb2 100644 --- a/drivers/staging/rtl8192u/r8190_rtl8256.c +++ b/drivers/staging/rtl8192u/r8190_rtl8256.c @@ -194,7 +194,7 @@ void phy_RF8256_Config_ParaFile(struct net_device *dev) break; } - /*----Restore RFENV control type----*/; + /*----Restore RFENV control type----*/ switch (eRFPath) { case RF90_PATH_A: case RF90_PATH_C: -- cgit v0.10.2 From 58493d8e405e6ebe530d04f97bfe32724608c89e Mon Sep 17 00:00:00 2001 From: Nik Nyby Date: Sun, 20 Mar 2016 15:46:35 -0400 Subject: staging: rtl8192u: fix typo in debug message This fixes a mis-spelled word in a few debug statements. Signed-off-by: Nik Nyby Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c index f18fc0b..051c2be 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c @@ -746,7 +746,7 @@ static void RxReorderIndicatePacket(struct ieee80211_device *ieee, // Indicate packets if(index>REORDER_WIN_SIZE){ - IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Rx Reorer buffer full!! \n"); + IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Rx Reorder buffer full!! \n"); kfree(prxbIndicateArray); return; } diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c index 148d0d4..6033502 100644 --- a/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c +++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c @@ -75,7 +75,7 @@ static void RxPktPendingTimeout(unsigned long data) // Indicate packets if(index > REORDER_WIN_SIZE){ - IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Rx Reorer buffer full!! \n"); + IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Rx Reorder buffer full!! \n"); spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags); return; } -- cgit v0.10.2 From 13c1cce614d339ab369b9c2b10bc2a2d49ad3f6b Mon Sep 17 00:00:00 2001 From: Edward Lipinsky Date: Sat, 12 Mar 2016 11:45:44 -0800 Subject: staging: rtl8723au: Fix line longer than 80 columns. This patch fixes the checkpatch.pl warning: WARNING: line over 80 characters Signed-off-by: Edward Lipinsky Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8723au/core/rtw_ap.c b/drivers/staging/rtl8723au/core/rtw_ap.c index f68e277..aad686d 100644 --- a/drivers/staging/rtl8723au/core/rtw_ap.c +++ b/drivers/staging/rtl8723au/core/rtw_ap.c @@ -1719,7 +1719,8 @@ void stop_ap_mode23a(struct rtw_adapter *padapter) } spin_unlock_bh(&pacl_node_q->lock); - DBG_8723A("%s, free acl_node_queue, num =%d\n", __func__, pacl_list->num); + DBG_8723A("%s, free acl_node_queue, num =%d\n", + __func__, pacl_list->num); rtw_sta_flush23a(padapter); -- cgit v0.10.2 From 299ccc8a07b79199b79bcfb3f701866f10b42063 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Fri, 18 Mar 2016 09:26:02 +0530 Subject: Staging: rtl8723au: rtl8723a_rf6052: Remove unnecessary semicolon. Remove unnecessary semicolon. Coccinelle sementic patch as follows: @r_case@ position p; @@ switch (...) { case ...: ...;@p } @r_default@ position p; @@ switch (...) { default: ...;@p } @r1@ statement S; position p1; position p != {r_case.p, r_default.p}; identifier label; @@ ( label:; | S@p1;@p ) Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_rf6052.c b/drivers/staging/rtl8723au/hal/rtl8723a_rf6052.c index ce0d8d8..24c0ff3 100644 --- a/drivers/staging/rtl8723au/hal/rtl8723a_rf6052.c +++ b/drivers/staging/rtl8723au/hal/rtl8723a_rf6052.c @@ -465,7 +465,7 @@ static int phy_RF6052_Config_ParaFile(struct rtw_adapter *Adapter) break; } - /*----Restore RFENV control type----*/; + /*----Restore RFENV control type----*/ switch (eRFPath) { case RF_PATH_A: PHY_SetBBReg(Adapter, pPhyReg->rfintfs, -- cgit v0.10.2 From 9555ece315c7809f32ca5bdb8eb19d8160b91517 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Sat, 19 Mar 2016 10:47:47 +0530 Subject: Staging: rtl8723au: Remove unnecessary return statement. Remove unnecessary return statement. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c b/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c index e81301f..1ea0af4 100644 --- a/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c +++ b/drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c @@ -1175,8 +1175,6 @@ int InitLLTTable23a(struct rtw_adapter *padapter, u32 boundary) /* Let last entry point to the start entry of ring buffer */ status = _LLTWrite(padapter, Last_Entry_Of_TxPktBuf, txpktbuf_bndy); - if (status != _SUCCESS) - return status; return status; } -- cgit v0.10.2 From d08073d92463820bcebf8594279c635a793f6772 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Fri, 18 Mar 2016 23:26:18 +0530 Subject: staging: rtl8712: rtl871x_ioctl_set: Remove unused macro Removed Unused macro IS_MAC_ADDRESS_BROADCAST. Grep'd to find occurences. Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_set.c b/drivers/staging/rtl8712/rtl871x_ioctl_set.c index f772675..56760cd 100644 --- a/drivers/staging/rtl8712/rtl871x_ioctl_set.c +++ b/drivers/staging/rtl8712/rtl871x_ioctl_set.c @@ -34,12 +34,6 @@ #include "usb_osintf.h" #include "usb_ops.h" -#define IS_MAC_ADDRESS_BROADCAST(addr) \ -( \ - ((addr[0] == 0xff) && (addr[1] == 0xff) && \ - (addr[2] == 0xff) && (addr[3] == 0xff) && \ - (addr[4] == 0xff) && (addr[5] == 0xff)) ? true : false \ -) static u8 validate_ssid(struct ndis_802_11_ssid *ssid) { -- cgit v0.10.2 From b7af4e6cc7f8f1b69e20ebd25cb633e30de4799e Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Mon, 21 Mar 2016 01:23:17 +0530 Subject: staging: rtl8712: os_intfs: Change form of NULL comparisons Change null comparisons of the form x == NULL to !x. This was done using Coccinelle. @@ expression e; @@ - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c index ab19112..57211f7 100644 --- a/drivers/staging/rtl8712/os_intfs.c +++ b/drivers/staging/rtl8712/os_intfs.c @@ -389,7 +389,7 @@ static int netdev_open(struct net_device *pnetdev) padapter->bup = true; if (rtl871x_hal_init(padapter) != _SUCCESS) goto netdev_open_error; - if (r8712_initmac == NULL) + if (!r8712_initmac) /* Use the mac address stored in the Efuse */ memcpy(pnetdev->dev_addr, padapter->eeprompriv.mac_addr, ETH_ALEN); @@ -413,7 +413,7 @@ static int netdev_open(struct net_device *pnetdev) } if (start_drv_threads(padapter) != _SUCCESS) goto netdev_open_error; - if (padapter->dvobjpriv.inirp_init == NULL) + if (!padapter->dvobjpriv.inirp_init) goto netdev_open_error; else padapter->dvobjpriv.inirp_init(padapter); -- cgit v0.10.2 From ddf6451ff98c5139c63639db826df540173db2d5 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Mon, 21 Mar 2016 02:08:36 +0530 Subject: staging: rtl8712: usb_ops_linux: Clean up tests if NULL returned on failure Some functions like kmalloc/kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/usb_ops_linux.c b/drivers/staging/rtl8712/usb_ops_linux.c index 454cdf6..6f12345 100644 --- a/drivers/staging/rtl8712/usb_ops_linux.c +++ b/drivers/staging/rtl8712/usb_ops_linux.c @@ -504,7 +504,7 @@ int r8712_usbctrl_vendorreq(struct intf_priv *pintfpriv, u8 request, u16 value, u8 *palloc_buf, *pIo_buf; palloc_buf = kmalloc((u32)len + 16, GFP_ATOMIC); - if (palloc_buf == NULL) + if (!palloc_buf) return -ENOMEM; pIo_buf = palloc_buf + 16 - ((addr_t)(palloc_buf) & 0x0f); if (requesttype == 0x01) { -- cgit v0.10.2 From 670e3fef68b82a0d43200fcbb3588c7ffa46ca08 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Mon, 21 Mar 2016 02:09:17 +0530 Subject: staging: rtl8712: rtl871x_mlme: Clean up tests if NULL returned on failure Some functions like kmalloc/kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c index 62d4ae8..f8b1c89 100644 --- a/drivers/staging/rtl8712/rtl871x_mlme.c +++ b/drivers/staging/rtl8712/rtl871x_mlme.c @@ -1205,7 +1205,7 @@ sint r8712_set_auth(struct _adapter *adapter, return _FAIL; psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC); - if (psetauthparm == NULL) { + if (!psetauthparm) { kfree(pcmd); return _FAIL; } @@ -1234,7 +1234,7 @@ sint r8712_set_key(struct _adapter *adapter, if (!pcmd) return _FAIL; psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC); - if (psetkeyparm == NULL) { + if (!psetkeyparm) { ret = _FAIL; goto err_free_cmd; } -- cgit v0.10.2 From b1d055005519985784f9a613df81b8dd928c0090 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Mon, 21 Mar 2016 02:09:49 +0530 Subject: staging: rtl8712: rtl871x_cmd: Clean up tests if NULL returned on failure Some functions like kmalloc/kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/rtl871x_cmd.c b/drivers/staging/rtl8712/rtl871x_cmd.c index 86136cc..aed03cf 100644 --- a/drivers/staging/rtl8712/rtl871x_cmd.c +++ b/drivers/staging/rtl8712/rtl871x_cmd.c @@ -225,10 +225,10 @@ u8 r8712_sitesurvey_cmd(struct _adapter *padapter, struct mlme_priv *pmlmepriv = &padapter->mlmepriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; psurveyPara = kmalloc(sizeof(*psurveyPara), GFP_ATOMIC); - if (psurveyPara == NULL) { + if (!psurveyPara) { kfree(ph2c); return _FAIL; } @@ -258,10 +258,10 @@ u8 r8712_setdatarate_cmd(struct _adapter *padapter, u8 *rateset) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; pbsetdataratepara = kmalloc(sizeof(*pbsetdataratepara), GFP_ATOMIC); - if (pbsetdataratepara == NULL) { + if (!pbsetdataratepara) { kfree(ph2c); return _FAIL; } @@ -280,10 +280,10 @@ u8 r8712_set_chplan_cmd(struct _adapter *padapter, int chplan) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; psetchplanpara = kmalloc(sizeof(*psetchplanpara), GFP_ATOMIC); - if (psetchplanpara == NULL) { + if (!psetchplanpara) { kfree(ph2c); return _FAIL; } @@ -301,10 +301,10 @@ u8 r8712_setbasicrate_cmd(struct _adapter *padapter, u8 *rateset) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; pssetbasicratepara = kmalloc(sizeof(*pssetbasicratepara), GFP_ATOMIC); - if (pssetbasicratepara == NULL) { + if (!pssetbasicratepara) { kfree(ph2c); return _FAIL; } @@ -322,10 +322,10 @@ u8 r8712_setfwdig_cmd(struct _adapter *padapter, u8 type) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; pwriteptmparm = kmalloc(sizeof(*pwriteptmparm), GFP_ATOMIC); - if (pwriteptmparm == NULL) { + if (!pwriteptmparm) { kfree(ph2c); return _FAIL; } @@ -342,10 +342,10 @@ u8 r8712_setfwra_cmd(struct _adapter *padapter, u8 type) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; pwriteptmparm = kmalloc(sizeof(*pwriteptmparm), GFP_ATOMIC); - if (pwriteptmparm == NULL) { + if (!pwriteptmparm) { kfree(ph2c); return _FAIL; } @@ -362,10 +362,10 @@ u8 r8712_setrfreg_cmd(struct _adapter *padapter, u8 offset, u32 val) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; pwriterfparm = kmalloc(sizeof(*pwriterfparm), GFP_ATOMIC); - if (pwriterfparm == NULL) { + if (!pwriterfparm) { kfree(ph2c); return _FAIL; } @@ -383,10 +383,10 @@ u8 r8712_getrfreg_cmd(struct _adapter *padapter, u8 offset, u8 *pval) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; prdrfparm = kmalloc(sizeof(*prdrfparm), GFP_ATOMIC); - if (prdrfparm == NULL) { + if (!prdrfparm) { kfree(ph2c); return _FAIL; } @@ -427,7 +427,7 @@ u8 r8712_createbss_cmd(struct _adapter *padapter) padapter->ledpriv.LedControlHandler(padapter, LED_CTL_START_TO_LINK); pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC); - if (pcmd == NULL) + if (!pcmd) return _FAIL; INIT_LIST_HEAD(&pcmd->list); pcmd->cmdcode = _CreateBss_CMD_; @@ -457,7 +457,7 @@ u8 r8712_joinbss_cmd(struct _adapter *padapter, struct wlan_network *pnetwork) padapter->ledpriv.LedControlHandler(padapter, LED_CTL_START_TO_LINK); pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC); - if (pcmd == NULL) + if (!pcmd) return _FAIL; /* for hidden ap to set fw_state here */ @@ -587,10 +587,10 @@ u8 r8712_disassoc_cmd(struct _adapter *padapter) /* for sta_mode */ struct cmd_priv *pcmdpriv = &padapter->cmdpriv; pdisconnect_cmd = kmalloc(sizeof(*pdisconnect_cmd), GFP_ATOMIC); - if (pdisconnect_cmd == NULL) + if (!pdisconnect_cmd) return _FAIL; pdisconnect = kmalloc(sizeof(*pdisconnect), GFP_ATOMIC); - if (pdisconnect == NULL) { + if (!pdisconnect) { kfree(pdisconnect_cmd); return _FAIL; } @@ -609,10 +609,10 @@ u8 r8712_setopmode_cmd(struct _adapter *padapter, struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; psetop = kmalloc(sizeof(*psetop), GFP_ATOMIC); - if (psetop == NULL) { + if (!psetop) { kfree(ph2c); return _FAIL; } @@ -633,15 +633,15 @@ u8 r8712_setstakey_cmd(struct _adapter *padapter, u8 *psta, u8 unicast_key) struct sta_info *sta = (struct sta_info *)psta; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; psetstakey_para = kmalloc(sizeof(*psetstakey_para), GFP_ATOMIC); - if (psetstakey_para == NULL) { + if (!psetstakey_para) { kfree(ph2c); return _FAIL; } psetstakey_rsp = kmalloc(sizeof(*psetstakey_rsp), GFP_ATOMIC); - if (psetstakey_rsp == NULL) { + if (!psetstakey_rsp) { kfree(ph2c); kfree(psetstakey_para); return _FAIL; @@ -673,10 +673,10 @@ u8 r8712_setrfintfs_cmd(struct _adapter *padapter, u8 mode) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; psetrfintfsparm = kmalloc(sizeof(*psetrfintfsparm), GFP_ATOMIC); - if (psetrfintfsparm == NULL) { + if (!psetrfintfsparm) { kfree(ph2c); return _FAIL; } @@ -695,10 +695,10 @@ u8 r8712_setrttbl_cmd(struct _adapter *padapter, struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; psetrttblparm = kmalloc(sizeof(*psetrttblparm), GFP_ATOMIC); - if (psetrttblparm == NULL) { + if (!psetrttblparm) { kfree(ph2c); return _FAIL; } @@ -716,10 +716,10 @@ u8 r8712_setMacAddr_cmd(struct _adapter *padapter, u8 *mac_addr) struct SetMacAddr_param *psetMacAddr_para; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; psetMacAddr_para = kmalloc(sizeof(*psetMacAddr_para), GFP_ATOMIC); - if (psetMacAddr_para == NULL) { + if (!psetMacAddr_para) { kfree(ph2c); return _FAIL; } @@ -738,15 +738,15 @@ u8 r8712_setassocsta_cmd(struct _adapter *padapter, u8 *mac_addr) struct set_assocsta_rsp *psetassocsta_rsp = NULL; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; psetassocsta_para = kmalloc(sizeof(*psetassocsta_para), GFP_ATOMIC); - if (psetassocsta_para == NULL) { + if (!psetassocsta_para) { kfree(ph2c); return _FAIL; } psetassocsta_rsp = kmalloc(sizeof(*psetassocsta_rsp), GFP_ATOMIC); - if (psetassocsta_rsp == NULL) { + if (!psetassocsta_rsp) { kfree(ph2c); kfree(psetassocsta_para); return _FAIL; @@ -766,10 +766,10 @@ u8 r8712_addbareq_cmd(struct _adapter *padapter, u8 tid) struct addBaReq_parm *paddbareq_parm; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; paddbareq_parm = kmalloc(sizeof(*paddbareq_parm), GFP_ATOMIC); - if (paddbareq_parm == NULL) { + if (!paddbareq_parm) { kfree(ph2c); return _FAIL; } @@ -787,10 +787,10 @@ u8 r8712_wdg_wk_cmd(struct _adapter *padapter) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; pdrvintcmd_param = kmalloc(sizeof(*pdrvintcmd_param), GFP_ATOMIC); - if (pdrvintcmd_param == NULL) { + if (!pdrvintcmd_param) { kfree(ph2c); return _FAIL; } @@ -961,10 +961,10 @@ u8 r8712_disconnectCtrlEx_cmd(struct _adapter *adapter, u32 enableDrvCtrl, struct cmd_priv *pcmdpriv = &adapter->cmdpriv; ph2c = kmalloc(sizeof(*ph2c), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; param = kzalloc(sizeof(*param), GFP_ATOMIC); - if (param == NULL) { + if (!param) { kfree(ph2c); return _FAIL; } -- cgit v0.10.2 From 0b90c305c93e4e94e80d7f10091867e28f275d37 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Mon, 21 Mar 2016 02:10:21 +0530 Subject: staging: rtl8712: rtl871x_ioctl_linux: Clean up tests if NULL returned on failure Some functions like kmalloc/kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c index 1b9e249..6c02e9b 100644 --- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c +++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c @@ -399,7 +399,7 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param, if (wep_key_len > 0) { wep_key_len = wep_key_len <= 5 ? 5 : 13; pwep = kzalloc(sizeof(*pwep), GFP_ATOMIC); - if (pwep == NULL) + if (!pwep) return -ENOMEM; pwep->KeyLength = wep_key_len; pwep->Length = wep_key_len + @@ -1793,7 +1793,7 @@ static int r871x_wx_set_enc_ext(struct net_device *dev, param_len = sizeof(struct ieee_param) + pext->key_len; param = kzalloc(param_len, GFP_ATOMIC); - if (param == NULL) + if (!param) return -ENOMEM; param->cmd = IEEE_CMD_SET_ENCRYPTION; eth_broadcast_addr(param->sta_addr); -- cgit v0.10.2 From b2def44cf0616f600636e36f8376061804b83e62 Mon Sep 17 00:00:00 2001 From: Parth Sane Date: Tue, 22 Mar 2016 05:11:00 +0530 Subject: staging: rtl8712: Fixed FSF address warning in basic_types.h Fixed checkpatch warning after removing FSF address paragraph as per guidelines. Signed-off-by: Parth Sane Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/basic_types.h b/drivers/staging/rtl8712/basic_types.h index 7561bed..f5c0231 100644 --- a/drivers/staging/rtl8712/basic_types.h +++ b/drivers/staging/rtl8712/basic_types.h @@ -11,10 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * * Modifications for inclusion into the Linux staging tree are * Copyright(c) 2010 Larry Finger. All rights reserved. * -- cgit v0.10.2 From 501ef12a74a51ffa1a1fe9057565c450be564050 Mon Sep 17 00:00:00 2001 From: Parth Sane Date: Tue, 22 Mar 2016 05:11:01 +0530 Subject: staging: rtl8712: Fixed FSF address warning in drv_types.h Fixed checkpatch warning after removing FSF address block as per guidelines. Signed-off-by: Parth Sane Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/drv_types.h b/drivers/staging/rtl8712/drv_types.h index 29e47e1..ae79047 100644 --- a/drivers/staging/rtl8712/drv_types.h +++ b/drivers/staging/rtl8712/drv_types.h @@ -11,10 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * * Modifications for inclusion into the Linux staging tree are * Copyright(c) 2010 Larry Finger. All rights reserved. * -- cgit v0.10.2 From c7838db04dc9a6921d3e3771c2deefe9dfe7c1a9 Mon Sep 17 00:00:00 2001 From: Parth Sane Date: Tue, 22 Mar 2016 05:11:02 +0530 Subject: staging: rtl8712: Fixed FSF address warning in ethernet.h Fixed checkpatch warning after removing FSF address block as per guidelines. Signed-off-by: Parth Sane Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/ethernet.h b/drivers/staging/rtl8712/ethernet.h index fad173f..039da36 100644 --- a/drivers/staging/rtl8712/ethernet.h +++ b/drivers/staging/rtl8712/ethernet.h @@ -11,10 +11,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * * Modifications for inclusion into the Linux staging tree are * Copyright(c) 2010 Larry Finger. All rights reserved. * -- cgit v0.10.2 From e8aad70c97ba280152463f6cb4f5e6ee2dd8e230 Mon Sep 17 00:00:00 2001 From: Parth Sane Date: Tue, 22 Mar 2016 05:11:03 +0530 Subject: staging: rtl8712: Fixed FSF address warning in hal_init.c Fixed checkpatch warning after removing FSF address block as per guidelines. Signed-off-by: Parth Sane Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c index 37fe0a4..0c76fbc 100644 --- a/drivers/staging/rtl8712/hal_init.c +++ b/drivers/staging/rtl8712/hal_init.c @@ -13,10 +13,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * * Modifications for inclusion into the Linux staging tree are * Copyright(c) 2010 Larry Finger. All rights reserved. * -- cgit v0.10.2 From 5ab2ce4305eb3c3b2dff7834993b1f6fb0c409be Mon Sep 17 00:00:00 2001 From: Parth Sane Date: Tue, 22 Mar 2016 05:11:04 +0530 Subject: staging: rtl8712: Fixed FSF address warning in ieee80211.c Fixed checkpatch warning after removing FSF address block as per guidelines. Signed-off-by: Parth Sane Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/ieee80211.c b/drivers/staging/rtl8712/ieee80211.c index d13b4d5..8918654 100644 --- a/drivers/staging/rtl8712/ieee80211.c +++ b/drivers/staging/rtl8712/ieee80211.c @@ -13,10 +13,6 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA - * * Modifications for inclusion into the Linux staging tree are * Copyright(c) 2010 Larry Finger. All rights reserved. * -- cgit v0.10.2 From b5e12ec38331256c3055591031ee96454c868209 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 19:49:51 +0530 Subject: Staging: rtl8188eu: rtw_efuse: Use sizeof type *pointer instead of sizeof type. Use sizeof type *pointer instead of sizeof type. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/core/rtw_efuse.c b/drivers/staging/rtl8188eu/core/rtw_efuse.c index fbce1f7..c17870c 100644 --- a/drivers/staging/rtl8188eu/core/rtw_efuse.c +++ b/drivers/staging/rtl8188eu/core/rtw_efuse.c @@ -102,7 +102,7 @@ efuse_phymap_to_logical(u8 *phymap, u16 _offset, u16 _size_byte, u8 *pbuf) if (!efuseTbl) return; - eFuseWord = (u16 **)rtw_malloc2d(EFUSE_MAX_SECTION_88E, EFUSE_MAX_WORD_UNIT, sizeof(u16)); + eFuseWord = (u16 **)rtw_malloc2d(EFUSE_MAX_SECTION_88E, EFUSE_MAX_WORD_UNIT, sizeof(*eFuseWord)); if (!eFuseWord) { DBG_88E("%s: alloc eFuseWord fail!\n", __func__); goto eFuseWord_failed; -- cgit v0.10.2 From 78822dc3c371ba7a909de72525ee176f78ea236c Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Mon, 14 Mar 2016 22:45:13 +0200 Subject: Staging: wlan-ng: defined oui_rfc1042[] and oui_8021h[] arrays as const arrays This patch defines oui_rfc1042[] and oui_8021h[] arrays from p80211conv.c as const arrays since these are not changed anywhere in code. Signed-off-by: Claudiu Beznea Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wlan-ng/p80211conv.c b/drivers/staging/wlan-ng/p80211conv.c index 0a8f396..bdb50a5 100644 --- a/drivers/staging/wlan-ng/p80211conv.c +++ b/drivers/staging/wlan-ng/p80211conv.c @@ -75,8 +75,8 @@ #include "p80211ioctl.h" #include "p80211req.h" -static u8 oui_rfc1042[] = { 0x00, 0x00, 0x00 }; -static u8 oui_8021h[] = { 0x00, 0x00, 0xf8 }; +static const u8 oui_rfc1042[] = { 0x00, 0x00, 0x00 }; +static const u8 oui_8021h[] = { 0x00, 0x00, 0xf8 }; /*---------------------------------------------------------------- * p80211pb_ether_to_80211 -- cgit v0.10.2 From f3dbe30655a651cd846303ecc7d5c5176c00a023 Mon Sep 17 00:00:00 2001 From: Sandhya Bankar Date: Mon, 21 Mar 2016 20:46:15 +0530 Subject: Staging: wlan-ng: Use x instead of x != NULL. Use x instead of x != NULL.This issue is detected by checkpatch.pl script. Signed-off-by: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wlan-ng/p80211netdev.c b/drivers/staging/wlan-ng/p80211netdev.c index 88255ce..fdfc821 100644 --- a/drivers/staging/wlan-ng/p80211netdev.c +++ b/drivers/staging/wlan-ng/p80211netdev.c @@ -156,7 +156,7 @@ static int p80211knetdev_open(netdevice_t *netdev) return -ENODEV; /* Tell the MSD to open */ - if (wlandev->open != NULL) { + if (wlandev->open) { result = wlandev->open(wlandev); if (result == 0) { netif_start_queue(wlandev->netdev); @@ -186,7 +186,7 @@ static int p80211knetdev_stop(netdevice_t *netdev) int result = 0; wlandevice_t *wlandev = netdev->ml_priv; - if (wlandev->close != NULL) + if (wlandev->close) result = wlandev->close(wlandev); netif_stop_queue(wlandev->netdev); -- cgit v0.10.2 From f6b1160eb27f990cc1c48b67a5f83cb63115284e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 17 Mar 2016 10:10:40 -0700 Subject: staging: comedi: dt282x: tidy up register bit defines Arnd Bergmann pointed out that gcc-6 warns about passing negative signed integer into swab16() due to the macro expansion of 'outw'. It appears that the register map constants are causing the warnings. Actually, it might just be the (1 << 15) ones... Convert all the constants as suggested by checkpatch.pl: CHECK: Prefer using the BIT macro The BIT() macro will make all the constants explicitly 'unsigned', which helps to avoid the warning. Fix the, unsused, DT2821_CHANCSR_PRESLA() macro. The "Present List Address" (PRESLA) bits in the CHANCSR register are read only. This define was meant to extract the bits from the read value. Signed-off-by: H Hartley Sweeten Reported-by: Arnd Bergmann Reviewed-by: Ian Abbott Tested-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index 40bf009..06a87a1 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -69,48 +69,49 @@ * Register map */ #define DT2821_ADCSR_REG 0x00 -#define DT2821_ADCSR_ADERR (1 << 15) -#define DT2821_ADCSR_ADCLK (1 << 9) -#define DT2821_ADCSR_MUXBUSY (1 << 8) -#define DT2821_ADCSR_ADDONE (1 << 7) -#define DT2821_ADCSR_IADDONE (1 << 6) +#define DT2821_ADCSR_ADERR BIT(15) +#define DT2821_ADCSR_ADCLK BIT(9) +#define DT2821_ADCSR_MUXBUSY BIT(8) +#define DT2821_ADCSR_ADDONE BIT(7) +#define DT2821_ADCSR_IADDONE BIT(6) #define DT2821_ADCSR_GS(x) (((x) & 0x3) << 4) #define DT2821_ADCSR_CHAN(x) (((x) & 0xf) << 0) #define DT2821_CHANCSR_REG 0x02 -#define DT2821_CHANCSR_LLE (1 << 15) -#define DT2821_CHANCSR_PRESLA(x) (((x) & 0xf) >> 8) +#define DT2821_CHANCSR_LLE BIT(15) +#define DT2821_CHANCSR_TO_PRESLA(x) (((x) >> 8) & 0xf) #define DT2821_CHANCSR_NUMB(x) ((((x) - 1) & 0xf) << 0) #define DT2821_ADDAT_REG 0x04 #define DT2821_DACSR_REG 0x06 -#define DT2821_DACSR_DAERR (1 << 15) +#define DT2821_DACSR_DAERR BIT(15) #define DT2821_DACSR_YSEL(x) ((x) << 9) -#define DT2821_DACSR_SSEL (1 << 8) -#define DT2821_DACSR_DACRDY (1 << 7) -#define DT2821_DACSR_IDARDY (1 << 6) -#define DT2821_DACSR_DACLK (1 << 5) -#define DT2821_DACSR_HBOE (1 << 1) -#define DT2821_DACSR_LBOE (1 << 0) +#define DT2821_DACSR_SSEL BIT(8) +#define DT2821_DACSR_DACRDY BIT(7) +#define DT2821_DACSR_IDARDY BIT(6) +#define DT2821_DACSR_DACLK BIT(5) +#define DT2821_DACSR_HBOE BIT(1) +#define DT2821_DACSR_LBOE BIT(0) #define DT2821_DADAT_REG 0x08 #define DT2821_DIODAT_REG 0x0a #define DT2821_SUPCSR_REG 0x0c -#define DT2821_SUPCSR_DMAD (1 << 15) -#define DT2821_SUPCSR_ERRINTEN (1 << 14) -#define DT2821_SUPCSR_CLRDMADNE (1 << 13) -#define DT2821_SUPCSR_DDMA (1 << 12) -#define DT2821_SUPCSR_DS_PIO (0 << 10) -#define DT2821_SUPCSR_DS_AD_CLK (1 << 10) -#define DT2821_SUPCSR_DS_DA_CLK (2 << 10) -#define DT2821_SUPCSR_DS_AD_TRIG (3 << 10) -#define DT2821_SUPCSR_BUFFB (1 << 9) -#define DT2821_SUPCSR_SCDN (1 << 8) -#define DT2821_SUPCSR_DACON (1 << 7) -#define DT2821_SUPCSR_ADCINIT (1 << 6) -#define DT2821_SUPCSR_DACINIT (1 << 5) -#define DT2821_SUPCSR_PRLD (1 << 4) -#define DT2821_SUPCSR_STRIG (1 << 3) -#define DT2821_SUPCSR_XTRIG (1 << 2) -#define DT2821_SUPCSR_XCLK (1 << 1) -#define DT2821_SUPCSR_BDINIT (1 << 0) +#define DT2821_SUPCSR_DMAD BIT(15) +#define DT2821_SUPCSR_ERRINTEN BIT(14) +#define DT2821_SUPCSR_CLRDMADNE BIT(13) +#define DT2821_SUPCSR_DDMA BIT(12) +#define DT2821_SUPCSR_DS(x) (((x) & 0x3) << 10) +#define DT2821_SUPCSR_DS_PIO DT2821_SUPCSR_DS(0) +#define DT2821_SUPCSR_DS_AD_CLK DT2821_SUPCSR_DS(1) +#define DT2821_SUPCSR_DS_DA_CLK DT2821_SUPCSR_DS(2) +#define DT2821_SUPCSR_DS_AD_TRIG DT2821_SUPCSR_DS(3) +#define DT2821_SUPCSR_BUFFB BIT(9) +#define DT2821_SUPCSR_SCDN BIT(8) +#define DT2821_SUPCSR_DACON BIT(7) +#define DT2821_SUPCSR_ADCINIT BIT(6) +#define DT2821_SUPCSR_DACINIT BIT(5) +#define DT2821_SUPCSR_PRLD BIT(4) +#define DT2821_SUPCSR_STRIG BIT(3) +#define DT2821_SUPCSR_XTRIG BIT(2) +#define DT2821_SUPCSR_XCLK BIT(1) +#define DT2821_SUPCSR_BDINIT BIT(0) #define DT2821_TMRCTR_REG 0x0e static const struct comedi_lrange range_dt282x_ai_lo_bipolar = { -- cgit v0.10.2 From 938cae7ab3b046af9669aa7454fab0546231ba48 Mon Sep 17 00:00:00 2001 From: Leslie Klein Date: Sun, 20 Mar 2016 20:26:12 -0400 Subject: Staging: comedi: comedi_buf: Replace 'unsigned' with 'unsigned int' Fix checkpatch warning: Prefer 'unsigned int' to bare use of 'unsigned' in file comedi_buf.c Signed-off-by: Leslie Klein Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c index 90c2801..c7d7682 100644 --- a/drivers/staging/comedi/comedi_buf.c +++ b/drivers/staging/comedi/comedi_buf.c @@ -80,14 +80,14 @@ static void __comedi_buf_free(struct comedi_device *dev, static void __comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s, - unsigned n_pages) + unsigned int n_pages) { struct comedi_async *async = s->async; struct page **pages = NULL; struct comedi_buf_map *bm; struct comedi_buf_page *buf; unsigned long flags; - unsigned i; + unsigned int i; if (!IS_ENABLED(CONFIG_HAS_DMA) && s->async_dma_dir != DMA_NONE) { dev_err(dev->class_dev, @@ -208,7 +208,7 @@ int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s, /* allocate new buffer */ if (new_size) { - unsigned n_pages = new_size >> PAGE_SHIFT; + unsigned int n_pages = new_size >> PAGE_SHIFT; __comedi_buf_alloc(dev, s, n_pages); @@ -302,7 +302,7 @@ static unsigned int comedi_buf_munge(struct comedi_subdevice *s, { struct comedi_async *async = s->async; unsigned int count = 0; - const unsigned num_sample_bytes = comedi_bytes_per_sample(s); + const unsigned int num_sample_bytes = comedi_bytes_per_sample(s); if (!s->munge || (async->cmd.flags & CMDF_RAWDATA)) { async->munge_count += num_bytes; @@ -395,7 +395,7 @@ EXPORT_SYMBOL_GPL(comedi_buf_write_free); unsigned int comedi_buf_read_n_available(struct comedi_subdevice *s) { struct comedi_async *async = s->async; - unsigned num_bytes; + unsigned int num_bytes; if (!async) return 0; -- cgit v0.10.2 From d4d47895a906779b5e8df157f703f906d22305b5 Mon Sep 17 00:00:00 2001 From: Leslie Klein Date: Mon, 21 Mar 2016 09:18:35 -0400 Subject: Staging: comedi: comedi_fops: Replace 'unsigned' with 'unsigned int' Fix checkpatch warning: Prefer 'unsigned int' to bare use of 'unsigned' in file comedi_fops.c Signed-off-by: Leslie Klein Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 7c7b477..4bdea20 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -186,7 +186,7 @@ static bool comedi_clear_board_dev(struct comedi_device *dev) return cleared; } -static struct comedi_device *comedi_clear_board_minor(unsigned minor) +static struct comedi_device *comedi_clear_board_minor(unsigned int minor) { struct comedi_device *dev; @@ -210,7 +210,7 @@ static void comedi_free_board_dev(struct comedi_device *dev) } static struct comedi_subdevice -*comedi_subdevice_from_minor(const struct comedi_device *dev, unsigned minor) +*comedi_subdevice_from_minor(const struct comedi_device *dev, unsigned int minor) { struct comedi_subdevice *s; unsigned int i = minor - COMEDI_NUM_BOARD_MINORS; @@ -223,7 +223,7 @@ static struct comedi_subdevice return s; } -static struct comedi_device *comedi_dev_get_from_board_minor(unsigned minor) +static struct comedi_device *comedi_dev_get_from_board_minor(unsigned int minor) { struct comedi_device *dev; @@ -233,7 +233,7 @@ static struct comedi_device *comedi_dev_get_from_board_minor(unsigned minor) return dev; } -static struct comedi_device *comedi_dev_get_from_subdevice_minor(unsigned minor) +static struct comedi_device *comedi_dev_get_from_subdevice_minor(unsigned int minor) { struct comedi_device *dev; struct comedi_subdevice *s; @@ -258,7 +258,7 @@ static struct comedi_device *comedi_dev_get_from_subdevice_minor(unsigned minor) * reference incremented. Return NULL if no COMEDI device exists with the * specified minor device number. */ -struct comedi_device *comedi_dev_get_from_minor(unsigned minor) +struct comedi_device *comedi_dev_get_from_minor(unsigned int minor) { if (minor < COMEDI_NUM_BOARD_MINORS) return comedi_dev_get_from_board_minor(minor); @@ -342,7 +342,7 @@ static struct comedi_subdevice *comedi_file_write_subdevice(struct file *file) } static int resize_async_buffer(struct comedi_device *dev, - struct comedi_subdevice *s, unsigned new_size) + struct comedi_subdevice *s, unsigned int new_size) { struct comedi_async *async = s->async; int retval; @@ -616,19 +616,19 @@ static struct attribute *comedi_dev_attrs[] = { ATTRIBUTE_GROUPS(comedi_dev); static void __comedi_clear_subdevice_runflags(struct comedi_subdevice *s, - unsigned bits) + unsigned int bits) { s->runflags &= ~bits; } static void __comedi_set_subdevice_runflags(struct comedi_subdevice *s, - unsigned bits) + unsigned int bits) { s->runflags |= bits; } static void comedi_update_subdevice_runflags(struct comedi_subdevice *s, - unsigned mask, unsigned bits) + unsigned int mask, unsigned int bits) { unsigned long flags; @@ -638,15 +638,15 @@ static void comedi_update_subdevice_runflags(struct comedi_subdevice *s, spin_unlock_irqrestore(&s->spin_lock, flags); } -static unsigned __comedi_get_subdevice_runflags(struct comedi_subdevice *s) +static unsigned int __comedi_get_subdevice_runflags(struct comedi_subdevice *s) { return s->runflags; } -static unsigned comedi_get_subdevice_runflags(struct comedi_subdevice *s) +static unsigned int comedi_get_subdevice_runflags(struct comedi_subdevice *s) { unsigned long flags; - unsigned runflags; + unsigned int runflags; spin_lock_irqsave(&s->spin_lock, flags); runflags = __comedi_get_subdevice_runflags(s); @@ -654,12 +654,12 @@ static unsigned comedi_get_subdevice_runflags(struct comedi_subdevice *s) return runflags; } -static bool comedi_is_runflags_running(unsigned runflags) +static bool comedi_is_runflags_running(unsigned int runflags) { return runflags & COMEDI_SRF_RUNNING; } -static bool comedi_is_runflags_in_error(unsigned runflags) +static bool comedi_is_runflags_in_error(unsigned int runflags) { return runflags & COMEDI_SRF_ERROR; } @@ -673,7 +673,7 @@ static bool comedi_is_runflags_in_error(unsigned runflags) */ bool comedi_is_subdevice_running(struct comedi_subdevice *s) { - unsigned runflags = comedi_get_subdevice_runflags(s); + unsigned int runflags = comedi_get_subdevice_runflags(s); return comedi_is_runflags_running(runflags); } @@ -681,14 +681,14 @@ EXPORT_SYMBOL_GPL(comedi_is_subdevice_running); static bool __comedi_is_subdevice_running(struct comedi_subdevice *s) { - unsigned runflags = __comedi_get_subdevice_runflags(s); + unsigned int runflags = __comedi_get_subdevice_runflags(s); return comedi_is_runflags_running(runflags); } bool comedi_can_auto_free_spriv(struct comedi_subdevice *s) { - unsigned runflags = __comedi_get_subdevice_runflags(s); + unsigned int runflags = __comedi_get_subdevice_runflags(s); return runflags & COMEDI_SRF_FREE_SPRIV; } @@ -2038,7 +2038,7 @@ static int do_setwsubd_ioctl(struct comedi_device *dev, unsigned long arg, static long comedi_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - unsigned minor = iminor(file_inode(file)); + unsigned int minor = iminor(file_inode(file)); struct comedi_file *cfp = file->private_data; struct comedi_device *dev = cfp->dev; int rc; @@ -2342,7 +2342,7 @@ static ssize_t comedi_write(struct file *file, const char __user *buf, add_wait_queue(&async->wait_head, &wait); while (count == 0 && !retval) { - unsigned runflags; + unsigned int runflags; unsigned int wp, n1, n2; set_current_state(TASK_INTERRUPTIBLE); @@ -2485,7 +2485,7 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes, n = min_t(size_t, m, nbytes); if (n == 0) { - unsigned runflags = comedi_get_subdevice_runflags(s); + unsigned int runflags = comedi_get_subdevice_runflags(s); if (!comedi_is_runflags_running(runflags)) { if (comedi_is_runflags_in_error(runflags)) @@ -2573,7 +2573,7 @@ out: static int comedi_open(struct inode *inode, struct file *file) { - const unsigned minor = iminor(inode); + const unsigned int minor = iminor(inode); struct comedi_file *cfp; struct comedi_device *dev = comedi_dev_get_from_minor(minor); int rc; @@ -2733,7 +2733,7 @@ struct comedi_device *comedi_alloc_board_minor(struct device *hardware_device) { struct comedi_device *dev; struct device *csdev; - unsigned i; + unsigned int i; dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (!dev) @@ -2791,7 +2791,7 @@ int comedi_alloc_subdevice_minor(struct comedi_subdevice *s) { struct comedi_device *dev = s->device; struct device *csdev; - unsigned i; + unsigned int i; mutex_lock(&comedi_subdevice_minor_table_lock); for (i = 0; i < COMEDI_NUM_SUBDEVICE_MINORS; ++i) { @@ -2841,7 +2841,7 @@ void comedi_free_subdevice_minor(struct comedi_subdevice *s) static void comedi_cleanup_board_minors(void) { struct comedi_device *dev; - unsigned i; + unsigned int i; for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) { dev = comedi_clear_board_minor(i); -- cgit v0.10.2 From 6c5f37dfbbc9b2121b39be3a7a61b93dbba3ed08 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Mon, 14 Mar 2016 21:55:20 +0200 Subject: Staging: vt6655: defined byVT3253InitTab_RFMD[] and byVT3253B0_RFMD[] as const arrays. This patch changes byVT3253InitTab_RFMD[] and byVT3253B0_RFMD[] arrays in const arrays since these are not changed anywhere in the code. Signed-off-by: Claudiu Beznea Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vt6655/baseband.c b/drivers/staging/vt6655/baseband.c index 1e6c0c4..94a7e64 100644 --- a/drivers/staging/vt6655/baseband.c +++ b/drivers/staging/vt6655/baseband.c @@ -66,7 +66,7 @@ /*--------------------- Static Variables --------------------------*/ #define CB_VT3253_INIT_FOR_RFMD 446 -static unsigned char byVT3253InitTab_RFMD[CB_VT3253_INIT_FOR_RFMD][2] = { +static const unsigned char byVT3253InitTab_RFMD[CB_VT3253_INIT_FOR_RFMD][2] = { {0x00, 0x30}, {0x01, 0x00}, {0x02, 0x00}, @@ -516,7 +516,7 @@ static unsigned char byVT3253InitTab_RFMD[CB_VT3253_INIT_FOR_RFMD][2] = { }; #define CB_VT3253B0_INIT_FOR_RFMD 256 -static unsigned char byVT3253B0_RFMD[CB_VT3253B0_INIT_FOR_RFMD][2] = { +static const unsigned char byVT3253B0_RFMD[CB_VT3253B0_INIT_FOR_RFMD][2] = { {0x00, 0x31}, {0x01, 0x00}, {0x02, 0x00}, -- cgit v0.10.2 From 779bee40b907de23771bb8eaf334b81be53018b1 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Tue, 15 Mar 2016 21:34:59 +0100 Subject: Staging: speakup: Clear hi font bit from attributes Previously, speakup would see the hi-font bit in attributes. Since this bit has nothing to do with attributes, we need to clear it. Signed-off-by: Samuel Thibault Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c index a22fb07..97ca4ec 100644 --- a/drivers/staging/speakup/main.c +++ b/drivers/staging/speakup/main.c @@ -263,7 +263,7 @@ static struct notifier_block vt_notifier_block = { static unsigned char get_attributes(struct vc_data *vc, u16 *pos) { pos = screen_pos(vc, pos - (u16 *)vc->vc_origin, 1); - return (u_char) (scr_readw(pos) >> 8); + return (scr_readw(pos) & ~vc->vc_hi_font_mask) >> 8; } static void speakup_date(struct vc_data *vc) @@ -473,8 +473,10 @@ static u16 get_char(struct vc_data *vc, u16 *pos, u_char *attribs) w = scr_readw(pos); c = w & 0xff; - if (w & vc->vc_hi_font_mask) + if (w & vc->vc_hi_font_mask) { + w &= ~vc->vc_hi_font_mask; c |= 0x100; + } ch = inverse_translate(vc, c, 0); *attribs = (w & 0xff00) >> 8; -- cgit v0.10.2 From 5150d01ea99230576060e864f7a6f15e29b8dc4d Mon Sep 17 00:00:00 2001 From: Kathryn Hampton Date: Tue, 15 Mar 2016 18:16:24 -0700 Subject: staging: vt6655: fix style violations for lines over 80 characters This patch addresses line length errors reported by checkpatch.pl that could be fixed with simple line breaks. Signed-off-by: Kathryn Hampton Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vt6655/baseband.c b/drivers/staging/vt6655/baseband.c index 94a7e64..654d072 100644 --- a/drivers/staging/vt6655/baseband.c +++ b/drivers/staging/vt6655/baseband.c @@ -36,8 +36,10 @@ * Revision History: * 06-10-2003 Bryan YC Fan: Re-write codes to support VT3253 spec. * 08-07-2003 Bryan YC Fan: Add MAXIM2827/2825 and RFMD2959 support. - * 08-26-2003 Kyle Hsu : Modify BBuGetFrameTime() and BBvCalculateParameter(). - * cancel the setting of MAC_REG_SOFTPWRCTL on BBbVT3253Init(). + * 08-26-2003 Kyle Hsu : Modify BBuGetFrameTime() and + * BBvCalculateParameter(). + * cancel the setting of MAC_REG_SOFTPWRCTL on + * BBbVT3253Init(). * Add the comments. * 09-01-2003 Bryan YC Fan: RF & BB tables updated. * Modified BBvLoopbackOn & BBvLoopbackOff(). @@ -777,7 +779,8 @@ static const unsigned char byVT3253B0_RFMD[CB_VT3253B0_INIT_FOR_RFMD][2] = { #define CB_VT3253B0_AGC_FOR_RFMD2959 195 /* For RFMD2959 */ -static unsigned char byVT3253B0_AGC4_RFMD2959[CB_VT3253B0_AGC_FOR_RFMD2959][2] = { +static +unsigned char byVT3253B0_AGC4_RFMD2959[CB_VT3253B0_AGC_FOR_RFMD2959][2] = { {0xF0, 0x00}, {0xF1, 0x3E}, {0xF0, 0x80}, @@ -977,7 +980,8 @@ static unsigned char byVT3253B0_AGC4_RFMD2959[CB_VT3253B0_AGC_FOR_RFMD2959][2] = #define CB_VT3253B0_INIT_FOR_AIROHA2230 256 /* For AIROHA */ -static unsigned char byVT3253B0_AIROHA2230[CB_VT3253B0_INIT_FOR_AIROHA2230][2] = { +static +unsigned char byVT3253B0_AIROHA2230[CB_VT3253B0_INIT_FOR_AIROHA2230][2] = { {0x00, 0x31}, {0x01, 0x00}, {0x02, 0x00}, @@ -2160,9 +2164,13 @@ bool BBbVT3253Init(struct vnt_private *priv) /* {{ RobertYu:20050223, request by JerryChung */ - /* Init ANT B select,TX Config CR09 = 0x61->0x45, 0x45->0x41(VC1/VC2 define, make the ANT_A, ANT_B inverted) */ + /* Init ANT B select,TX Config CR09 = 0x61->0x45, + * 0x45->0x41(VC1/VC2 define, make the ANT_A, ANT_B inverted) + */ /*bResult &= BBbWriteEmbedded(dwIoBase,0x09,0x41);*/ - /* Init ANT B select,RX Config CR10 = 0x28->0x2A, 0x2A->0x28(VC1/VC2 define, make the ANT_A, ANT_B inverted) */ + /* Init ANT B select,RX Config CR10 = 0x28->0x2A, + * 0x2A->0x28(VC1/VC2 define, make the ANT_A, ANT_B inverted) + */ /*bResult &= BBbWriteEmbedded(dwIoBase,0x0a,0x28);*/ /* Select VC1/VC2, CR215 = 0x02->0x06 */ bResult &= BBbWriteEmbedded(priv, 0xd7, 0x06); diff --git a/drivers/staging/vt6655/baseband.h b/drivers/staging/vt6655/baseband.h index 43a4fb1..b4e8c43 100644 --- a/drivers/staging/vt6655/baseband.h +++ b/drivers/staging/vt6655/baseband.h @@ -77,8 +77,10 @@ BBuGetFrameTime( void vnt_get_phy_field(struct vnt_private *, u32 frame_length, u16 tx_rate, u8 pkt_type, struct vnt_phy_field *); -bool BBbReadEmbedded(struct vnt_private *, unsigned char byBBAddr, unsigned char *pbyData); -bool BBbWriteEmbedded(struct vnt_private *, unsigned char byBBAddr, unsigned char byData); +bool BBbReadEmbedded(struct vnt_private *, unsigned char byBBAddr, + unsigned char *pbyData); +bool BBbWriteEmbedded(struct vnt_private *, unsigned char byBBAddr, + unsigned char byData); void BBvSetShortSlotTime(struct vnt_private *); void BBvSetVGAGainOffset(struct vnt_private *, unsigned char byData); diff --git a/drivers/staging/vt6655/card.c b/drivers/staging/vt6655/card.c index 3d33812..afb1e8b 100644 --- a/drivers/staging/vt6655/card.c +++ b/drivers/staging/vt6655/card.c @@ -336,7 +336,8 @@ bool CARDbSetPhyParameter(struct vnt_private *priv, u8 bb_type) } if (priv->byCWMaxMin != byCWMaxMin) { priv->byCWMaxMin = byCWMaxMin; - VNSvOutPortB(priv->PortOffset + MAC_REG_CWMAXMIN0, priv->byCWMaxMin); + VNSvOutPortB(priv->PortOffset + MAC_REG_CWMAXMIN0, + priv->byCWMaxMin); } priv->byPacketType = CARDbyGetPktType(priv); @@ -373,9 +374,12 @@ bool CARDbUpdateTSF(struct vnt_private *priv, unsigned char byRxRate, qwTSFOffset = CARDqGetTSFOffset(byRxRate, qwBSSTimestamp, local_tsf); /* adjust TSF, HW's TSF add TSF Offset reg */ - VNSvOutPortD(priv->PortOffset + MAC_REG_TSFOFST, (u32)qwTSFOffset); - VNSvOutPortD(priv->PortOffset + MAC_REG_TSFOFST + 4, (u32)(qwTSFOffset >> 32)); - MACvRegBitsOn(priv->PortOffset, MAC_REG_TFTCTL, TFTCTL_TSFSYNCEN); + VNSvOutPortD(priv->PortOffset + MAC_REG_TSFOFST, + (u32)qwTSFOffset); + VNSvOutPortD(priv->PortOffset + MAC_REG_TSFOFST + 4, + (u32)(qwTSFOffset >> 32)); + MACvRegBitsOn(priv->PortOffset, MAC_REG_TFTCTL, + TFTCTL_TSFSYNCEN); } return true; } @@ -407,7 +411,8 @@ bool CARDbSetBeaconPeriod(struct vnt_private *priv, priv->wBeaconInterval = wBeaconInterval; /* Set NextTBTT */ VNSvOutPortD(priv->PortOffset + MAC_REG_NEXTTBTT, (u32)qwNextTBTT); - VNSvOutPortD(priv->PortOffset + MAC_REG_NEXTTBTT + 4, (u32)(qwNextTBTT >> 32)); + VNSvOutPortD(priv->PortOffset + MAC_REG_NEXTTBTT + 4, + (u32)(qwNextTBTT >> 32)); MACvRegBitsOn(priv->PortOffset, MAC_REG_TFTCTL, TFTCTL_TBTTSYNCEN); return true; @@ -433,15 +438,19 @@ bool CARDbRadioPowerOff(struct vnt_private *priv) switch (priv->byRFType) { case RF_RFMD2959: - MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_TXPEINV); - MACvWordRegBitsOn(priv->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE1); + MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL, + SOFTPWRCTL_TXPEINV); + MACvWordRegBitsOn(priv->PortOffset, MAC_REG_SOFTPWRCTL, + SOFTPWRCTL_SWPE1); break; case RF_AIROHA: case RF_AL2230S: case RF_AIROHA7230: - MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE2); - MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE3); + MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL, + SOFTPWRCTL_SWPE2); + MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL, + SOFTPWRCTL_SWPE3); break; } @@ -451,7 +460,8 @@ bool CARDbRadioPowerOff(struct vnt_private *priv) priv->bRadioOff = true; pr_debug("chester power off\n"); - MACvRegBitsOn(priv->PortOffset, MAC_REG_GPIOCTL0, LED_ACTSET); /* LED issue */ + MACvRegBitsOn(priv->PortOffset, MAC_REG_GPIOCTL0, + LED_ACTSET); /* LED issue */ return bResult; } @@ -488,21 +498,24 @@ bool CARDbRadioPowerOn(struct vnt_private *priv) switch (priv->byRFType) { case RF_RFMD2959: - MACvWordRegBitsOn(priv->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_TXPEINV); - MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE1); + MACvWordRegBitsOn(priv->PortOffset, MAC_REG_SOFTPWRCTL, + SOFTPWRCTL_TXPEINV); + MACvWordRegBitsOff(priv->PortOffset, MAC_REG_SOFTPWRCTL, + SOFTPWRCTL_SWPE1); break; case RF_AIROHA: case RF_AL2230S: case RF_AIROHA7230: - MACvWordRegBitsOn(priv->PortOffset, MAC_REG_SOFTPWRCTL, (SOFTPWRCTL_SWPE2 | - SOFTPWRCTL_SWPE3)); + MACvWordRegBitsOn(priv->PortOffset, MAC_REG_SOFTPWRCTL, + (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3)); break; } priv->bRadioOff = false; pr_debug("chester power on\n"); - MACvRegBitsOff(priv->PortOffset, MAC_REG_GPIOCTL0, LED_ACTSET); /* LED issue */ + MACvRegBitsOff(priv->PortOffset, MAC_REG_GPIOCTL0, + LED_ACTSET); /* LED issue */ return bResult; } @@ -717,55 +730,72 @@ void CARDvSetRSPINF(struct vnt_private *priv, u8 bb_type) bb_type, &byTxRate, &byRsvTime); - VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_6, MAKEWORD(byTxRate, byRsvTime)); + VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_6, + MAKEWORD(byTxRate, byRsvTime)); /* RSPINF_a_9 */ s_vCalculateOFDMRParameter(RATE_9M, bb_type, &byTxRate, &byRsvTime); - VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_9, MAKEWORD(byTxRate, byRsvTime)); + VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_9, + MAKEWORD(byTxRate, byRsvTime)); /* RSPINF_a_12 */ s_vCalculateOFDMRParameter(RATE_12M, bb_type, &byTxRate, &byRsvTime); - VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_12, MAKEWORD(byTxRate, byRsvTime)); + VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_12, + MAKEWORD(byTxRate, byRsvTime)); /* RSPINF_a_18 */ s_vCalculateOFDMRParameter(RATE_18M, bb_type, &byTxRate, &byRsvTime); - VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_18, MAKEWORD(byTxRate, byRsvTime)); + VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_18, + MAKEWORD(byTxRate, byRsvTime)); /* RSPINF_a_24 */ s_vCalculateOFDMRParameter(RATE_24M, bb_type, &byTxRate, &byRsvTime); - VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_24, MAKEWORD(byTxRate, byRsvTime)); + VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_24, + MAKEWORD(byTxRate, byRsvTime)); /* RSPINF_a_36 */ - s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)priv, RATE_36M), + s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate( + (void *)priv, + RATE_36M), bb_type, &byTxRate, &byRsvTime); - VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_36, MAKEWORD(byTxRate, byRsvTime)); + VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_36, + MAKEWORD(byTxRate, byRsvTime)); /* RSPINF_a_48 */ - s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)priv, RATE_48M), + s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate( + (void *)priv, + RATE_48M), bb_type, &byTxRate, &byRsvTime); - VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_48, MAKEWORD(byTxRate, byRsvTime)); + VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_48, + MAKEWORD(byTxRate, byRsvTime)); /* RSPINF_a_54 */ - s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)priv, RATE_54M), + s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate( + (void *)priv, + RATE_54M), bb_type, &byTxRate, &byRsvTime); - VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_54, MAKEWORD(byTxRate, byRsvTime)); + VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_54, + MAKEWORD(byTxRate, byRsvTime)); /* RSPINF_a_72 */ - s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)priv, RATE_54M), + s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate( + (void *)priv, + RATE_54M), bb_type, &byTxRate, &byRsvTime); - VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_72, MAKEWORD(byTxRate, byRsvTime)); + VNSvOutPortW(priv->PortOffset + MAC_REG_RSPINF_A_72, + MAKEWORD(byTxRate, byRsvTime)); /* Set to Page0 */ MACvSelectPage0(priv->PortOffset); @@ -830,7 +860,8 @@ unsigned char CARDbyGetPktType(struct vnt_private *priv) * * Return Value: none */ -void CARDvSetLoopbackMode(struct vnt_private *priv, unsigned short wLoopbackMode) +void CARDvSetLoopbackMode(struct vnt_private *priv, + unsigned short wLoopbackMode) { switch (wLoopbackMode) { case CARD_LB_NONE: @@ -965,7 +996,8 @@ u64 CARDqGetNextTBTT(u64 qwTSF, unsigned short wBeaconInterval) * * Return Value: none */ -void CARDvSetFirstNextTBTT(struct vnt_private *priv, unsigned short wBeaconInterval) +void CARDvSetFirstNextTBTT(struct vnt_private *priv, + unsigned short wBeaconInterval) { void __iomem *dwIoBase = priv->PortOffset; u64 qwNextTBTT = 0; @@ -993,7 +1025,8 @@ void CARDvSetFirstNextTBTT(struct vnt_private *priv, unsigned short wBeaconInter * * Return Value: none */ -void CARDvUpdateNextTBTT(struct vnt_private *priv, u64 qwTSF, unsigned short wBeaconInterval) +void CARDvUpdateNextTBTT(struct vnt_private *priv, u64 qwTSF, + unsigned short wBeaconInterval) { void __iomem *dwIoBase = priv->PortOffset; diff --git a/drivers/staging/vt6655/card.h b/drivers/staging/vt6655/card.h index 16cca49..0203c7f 100644 --- a/drivers/staging/vt6655/card.h +++ b/drivers/staging/vt6655/card.h @@ -38,7 +38,8 @@ * LOBYTE is MAC LB mode, HIBYTE is MII LB mode */ #define CARD_LB_NONE MAKEWORD(MAC_LB_NONE, 0) -#define CARD_LB_MAC MAKEWORD(MAC_LB_INTERNAL, 0) /* PHY must ISO, avoid MAC loopback packet go out */ +/* PHY must ISO, avoid MAC loopback packet go out */ +#define CARD_LB_MAC MAKEWORD(MAC_LB_INTERNAL, 0) #define CARD_LB_PHY MAKEWORD(MAC_LB_EXT, 0) #define DEFAULT_MSDU_LIFETIME 512 /* ms */ @@ -71,8 +72,10 @@ void CARDvUpdateBasicTopRate(struct vnt_private *); bool CARDbIsOFDMinBasicRate(struct vnt_private *); void CARDvSetLoopbackMode(struct vnt_private *, unsigned short wLoopbackMode); bool CARDbSoftwareReset(struct vnt_private *); -void CARDvSetFirstNextTBTT(struct vnt_private *, unsigned short wBeaconInterval); -void CARDvUpdateNextTBTT(struct vnt_private *, u64 qwTSF, unsigned short wBeaconInterval); +void CARDvSetFirstNextTBTT(struct vnt_private *, + unsigned short wBeaconInterval); +void CARDvUpdateNextTBTT(struct vnt_private *, u64 qwTSF, + unsigned short wBeaconInterval); bool CARDbGetCurrentTSF(struct vnt_private *, u64 *pqwCurrTSF); u64 CARDqGetNextTBTT(u64 qwTSF, unsigned short wBeaconInterval); u64 CARDqGetTSFOffset(unsigned char byRxRate, u64 qwTSF1, u64 qwTSF2); diff --git a/drivers/staging/vt6655/desc.h b/drivers/staging/vt6655/desc.h index 9fbc717..2d7f6ae 100644 --- a/drivers/staging/vt6655/desc.h +++ b/drivers/staging/vt6655/desc.h @@ -157,7 +157,8 @@ /* TD_INFO flags control bit */ #define TD_FLAGS_NETIF_SKB 0x01 /* check if need release skb */ -#define TD_FLAGS_PRIV_SKB 0x02 /* check if called from private skb (hostap) */ +/* check if called from private skb (hostap) */ +#define TD_FLAGS_PRIV_SKB 0x02 #define TD_FLAGS_PS_RETRY 0x04 /* check if PS STA frame re-transmit */ /* diff --git a/drivers/staging/vt6655/mac.c b/drivers/staging/vt6655/mac.c index 45196c6..8e13f7f 100644 --- a/drivers/staging/vt6655/mac.c +++ b/drivers/staging/vt6655/mac.c @@ -47,7 +47,8 @@ * * Revision History: * 08-22-2003 Kyle Hsu : Porting MAC functions from sim53 - * 09-03-2003 Bryan YC Fan : Add MACvClearBusSusInd()& MACvEnableBusSusEn() + * 09-03-2003 Bryan YC Fan : Add MACvClearBusSusInd()& + * MACvEnableBusSusEn() * 09-18-2003 Jerry Chen : Add MACvSetKeyEntry & MACvDisableKeyEntry * */ @@ -138,7 +139,8 @@ bool MACbIsIntDisable(struct vnt_private *priv) * Return Value: none * */ -void MACvSetShortRetryLimit(struct vnt_private *priv, unsigned char byRetryLimit) +void MACvSetShortRetryLimit(struct vnt_private *priv, + unsigned char byRetryLimit) { void __iomem *io_base = priv->PortOffset; /* set SRT */ @@ -160,7 +162,8 @@ void MACvSetShortRetryLimit(struct vnt_private *priv, unsigned char byRetryLimit * Return Value: none * */ -void MACvSetLongRetryLimit(struct vnt_private *priv, unsigned char byRetryLimit) +void MACvSetLongRetryLimit(struct vnt_private *priv, + unsigned char byRetryLimit) { void __iomem *io_base = priv->PortOffset; /* set LRT */ @@ -304,7 +307,8 @@ bool MACbSoftwareReset(struct vnt_private *priv) /* * Description: - * save some important register's value, then do reset, then restore register's value + * save some important register's value, then do reset, then restore + * register's value * * Parameters: * In: @@ -738,7 +742,8 @@ void MACvTimer0MicroSDelay(struct vnt_private *priv, unsigned int uDelay) * Return Value: none * */ -void MACvOneShotTimer1MicroSec(struct vnt_private *priv, unsigned int uDelayTime) +void MACvOneShotTimer1MicroSec(struct vnt_private *priv, + unsigned int uDelayTime) { void __iomem *io_base = priv->PortOffset; diff --git a/drivers/staging/vt6655/srom.c b/drivers/staging/vt6655/srom.c index 9ec49e6..ee99277 100644 --- a/drivers/staging/vt6655/srom.c +++ b/drivers/staging/vt6655/srom.c @@ -72,7 +72,8 @@ * Return Value: data read * */ -unsigned char SROMbyReadEmbedded(void __iomem *dwIoBase, unsigned char byContntOffset) +unsigned char SROMbyReadEmbedded(void __iomem *dwIoBase, + unsigned char byContntOffset) { unsigned short wDelay, wNoACK; unsigned char byWait; @@ -124,7 +125,8 @@ void SROMvReadAllContents(void __iomem *dwIoBase, unsigned char *pbyEepromRegs) /* ii = Rom Address */ for (ii = 0; ii < EEP_MAX_CONTEXT_SIZE; ii++) { - *pbyEepromRegs = SROMbyReadEmbedded(dwIoBase, (unsigned char)ii); + *pbyEepromRegs = SROMbyReadEmbedded(dwIoBase, + (unsigned char)ii); pbyEepromRegs++; } } @@ -141,7 +143,8 @@ void SROMvReadAllContents(void __iomem *dwIoBase, unsigned char *pbyEepromRegs) * Return Value: none * */ -void SROMvReadEtherAddress(void __iomem *dwIoBase, unsigned char *pbyEtherAddress) +void SROMvReadEtherAddress(void __iomem *dwIoBase, + unsigned char *pbyEtherAddress) { unsigned char ii; -- cgit v0.10.2 From 896802a8e208997faff6e38d711cd9b13c7a2e23 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 22 Mar 2016 08:39:24 +0900 Subject: staging: wilc1000: use mutex instead of struct semaphore hif_sema_deinit This patch replaces struct semaphore hif_sema_deinit with struct mutex hif_deinit_lock. It is better to use mutex because mutex gives better performance than semaphore. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 4be8b31..b1ffa91 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -234,7 +234,7 @@ static struct message_queue hif_msg_q; static struct semaphore hif_sema_thread; static struct semaphore hif_sema_driver; static struct completion hif_wait_response; -static struct semaphore hif_sema_deinit; +static struct mutex hif_deinit_lock; static struct timer_list periodic_rssi; u8 wilc_multicast_mac_addr_list[WILC_MULTICAST_TABLE_SIZE][ETH_ALEN]; @@ -3402,7 +3402,7 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler) if (clients_count == 0) { sema_init(&hif_sema_thread, 0); sema_init(&hif_sema_driver, 0); - sema_init(&hif_sema_deinit, 1); + mutex_init(&hif_deinit_lock); } init_completion(&hif_drv->comp_test_key_block); @@ -3470,7 +3470,7 @@ int wilc_deinit(struct wilc_vif *vif) return -EFAULT; } - down(&hif_sema_deinit); + mutex_lock(&hif_deinit_lock); terminated_handle = hif_drv; @@ -3512,7 +3512,7 @@ int wilc_deinit(struct wilc_vif *vif) clients_count--; terminated_handle = NULL; - up(&hif_sema_deinit); + mutex_unlock(&hif_deinit_lock); return result; } @@ -3559,25 +3559,25 @@ void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *pu8Buffer, struct host_if_drv *hif_drv = NULL; struct wilc_vif *vif; - down(&hif_sema_deinit); + mutex_lock(&hif_deinit_lock); id = ((pu8Buffer[u32Length - 4]) | (pu8Buffer[u32Length - 3] << 8) | (pu8Buffer[u32Length - 2] << 16) | (pu8Buffer[u32Length - 1] << 24)); vif = wilc_get_vif_from_idx(wilc, id); if (!vif) { - up(&hif_sema_deinit); + mutex_unlock(&hif_deinit_lock); return; } hif_drv = vif->hif_drv; if (!hif_drv || hif_drv == terminated_handle) { - up(&hif_sema_deinit); + mutex_unlock(&hif_deinit_lock); return; } if (!hif_drv->usr_conn_req.conn_result) { netdev_err(vif->ndev, "there is no current Connect Request\n"); - up(&hif_sema_deinit); + mutex_unlock(&hif_deinit_lock); return; } @@ -3594,7 +3594,7 @@ void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *pu8Buffer, if (result) netdev_err(vif->ndev, "synchronous info (%d)\n", result); - up(&hif_sema_deinit); + mutex_unlock(&hif_deinit_lock); } void wilc_scan_complete_received(struct wilc *wilc, u8 *pu8Buffer, -- cgit v0.10.2 From 094c0741dec38c73793f674293dcd2026d1e77d7 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Tue, 22 Mar 2016 10:28:51 +0530 Subject: staging: comedi: amplc_pci230: Convert macro GAT_CONFIG to static inline function Convert macro GAT_CONFIG to static inline function as static inline functions are preferred over macros. This change is possible since the arguments at all call sites have the same type. This was done using Coccinelle: @r@ expression e; @@ - #define GAT_CONFIG(chan, src) e + static inline unsigned int pci230_gat_config(unsigned int chan, + unsigned int src) +{ + return ((chan & 3) << 3) | (src & 7); +} @r1@ expression dev,reg,chan,src; @@ -GAT_CONFIG(chan, src) +pci230_gat_config(chan, src) Also, the comment describing the macro has been removed manually. Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c index 907c39c..cf5ac8a 100644 --- a/drivers/staging/comedi/drivers/amplc_pci230.c +++ b/drivers/staging/comedi/drivers/amplc_pci230.c @@ -379,8 +379,12 @@ #define GAT_GND 1 /* GND (i.e. disabled) */ #define GAT_EXT 2 /* external gate input (PPCn on PCI230) */ #define GAT_NOUTNM2 3 /* inverted output of channel-2 modulo total */ -/* Macro to construct gate input configuration register value. */ -#define GAT_CONFIG(chan, src) ((((chan) & 3) << 3) | ((src) & 7)) + +static inline unsigned int pci230_gat_config(unsigned int chan, + unsigned int src) +{ + return ((chan & 3) << 3) | (src & 7); +} /* * Summary of CLK_OUTNM1 and GAT_NOUTNM2 connections for PCI230 and PCI260: @@ -1263,7 +1267,8 @@ static void pci230_ao_start(struct comedi_device *dev, irqflags); } /* Set CT1 gate high to start counting. */ - outb(GAT_CONFIG(1, GAT_VCC), dev->iobase + PCI230_ZGAT_SCE); + outb(pci230_gat_config(1, GAT_VCC), + dev->iobase + PCI230_ZGAT_SCE); break; case TRIG_INT: async->inttrig = pci230_ao_inttrig_scan_begin; @@ -1351,7 +1356,8 @@ static int pci230_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) * cmd->scan_begin_arg is sampling period in ns. * Gate it off for now. */ - outb(GAT_CONFIG(1, GAT_GND), dev->iobase + PCI230_ZGAT_SCE); + outb(pci230_gat_config(1, GAT_GND), + dev->iobase + PCI230_ZGAT_SCE); pci230_ct_setup_ns_mode(dev, 1, I8254_MODE3, cmd->scan_begin_arg, cmd->flags); @@ -1792,9 +1798,9 @@ static int pci230_ai_inttrig_scan_begin(struct comedi_device *dev, spin_lock_irqsave(&devpriv->ai_stop_spinlock, irqflags); if (devpriv->ai_cmd_started) { /* Trigger scan by waggling CT0 gate source. */ - zgat = GAT_CONFIG(0, GAT_GND); + zgat = pci230_gat_config(0, GAT_GND); outb(zgat, dev->iobase + PCI230_ZGAT_SCE); - zgat = GAT_CONFIG(0, GAT_VCC); + zgat = pci230_gat_config(0, GAT_VCC); outb(zgat, dev->iobase + PCI230_ZGAT_SCE); } spin_unlock_irqrestore(&devpriv->ai_stop_spinlock, irqflags); @@ -1926,20 +1932,20 @@ static void pci230_ai_start(struct comedi_device *dev, * Conversion timer CT2 needs to be gated by * inverted output of monostable CT2. */ - zgat = GAT_CONFIG(2, GAT_NOUTNM2); + zgat = pci230_gat_config(2, GAT_NOUTNM2); } else { /* * Conversion timer CT2 needs to be gated on * continuously. */ - zgat = GAT_CONFIG(2, GAT_VCC); + zgat = pci230_gat_config(2, GAT_VCC); } outb(zgat, dev->iobase + PCI230_ZGAT_SCE); if (cmd->scan_begin_src != TRIG_FOLLOW) { /* Set monostable CT0 trigger source. */ switch (cmd->scan_begin_src) { default: - zgat = GAT_CONFIG(0, GAT_VCC); + zgat = pci230_gat_config(0, GAT_VCC); break; case TRIG_EXT: /* @@ -1950,21 +1956,21 @@ static void pci230_ai_start(struct comedi_device *dev, * input in order to use it as an external scan * trigger. */ - zgat = GAT_CONFIG(0, GAT_EXT); + zgat = pci230_gat_config(0, GAT_EXT); break; case TRIG_TIMER: /* * Monostable CT0 triggered by rising edge on * inverted output of CT1 (falling edge on CT1). */ - zgat = GAT_CONFIG(0, GAT_NOUTNM2); + zgat = pci230_gat_config(0, GAT_NOUTNM2); break; case TRIG_INT: /* * Monostable CT0 is triggered by inttrig * function waggling the CT0 gate source. */ - zgat = GAT_CONFIG(0, GAT_VCC); + zgat = pci230_gat_config(0, GAT_VCC); break; } outb(zgat, dev->iobase + PCI230_ZGAT_SCE); @@ -1974,7 +1980,7 @@ static void pci230_ai_start(struct comedi_device *dev, * Scan period timer CT1 needs to be * gated on to start counting. */ - zgat = GAT_CONFIG(1, GAT_VCC); + zgat = pci230_gat_config(1, GAT_VCC); outb(zgat, dev->iobase + PCI230_ZGAT_SCE); break; case TRIG_INT: @@ -2216,7 +2222,7 @@ static int pci230_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) * Note, counter/timer output 2 can be monitored on the * connector: PCI230 pin 21, PCI260 pin 18. */ - zgat = GAT_CONFIG(2, GAT_GND); + zgat = pci230_gat_config(2, GAT_GND); outb(zgat, dev->iobase + PCI230_ZGAT_SCE); /* Set counter/timer 2 to the specified conversion period. */ pci230_ct_setup_ns_mode(dev, 2, I8254_MODE3, cmd->convert_arg, @@ -2234,7 +2240,7 @@ static int pci230_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) * monostable to stop it triggering. The trigger * source will be changed later. */ - zgat = GAT_CONFIG(0, GAT_VCC); + zgat = pci230_gat_config(0, GAT_VCC); outb(zgat, dev->iobase + PCI230_ZGAT_SCE); pci230_ct_setup_ns_mode(dev, 0, I8254_MODE1, ((uint64_t)cmd->convert_arg * @@ -2247,7 +2253,7 @@ static int pci230_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) * * Set up CT1 but gate it off for now. */ - zgat = GAT_CONFIG(1, GAT_GND); + zgat = pci230_gat_config(1, GAT_GND); outb(zgat, dev->iobase + PCI230_ZGAT_SCE); pci230_ct_setup_ns_mode(dev, 1, I8254_MODE3, cmd->scan_begin_arg, -- cgit v0.10.2 From a5948d917c5201fb8c4503d82fb6fc09da7ae726 Mon Sep 17 00:00:00 2001 From: Svetlana Orlik Date: Tue, 22 Mar 2016 07:51:36 +0300 Subject: Staging: iio: ad9832: Replace 'unsigned' with 'unsigned int' Replace 'unsigned' with 'unsigned int' to avoid checkpatch.pl warning. Signed-off-by: Svetlana Orlik Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c index 18b27a1..358400b 100644 --- a/drivers/staging/iio/frequency/ad9832.c +++ b/drivers/staging/iio/frequency/ad9832.c @@ -31,7 +31,7 @@ static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout) } static int ad9832_write_frequency(struct ad9832_state *st, - unsigned addr, unsigned long fout) + unsigned int addr, unsigned long fout) { unsigned long regval; -- cgit v0.10.2 From 3261c31c7c2bfbca6db3a7a934ba9341bf65b16d Mon Sep 17 00:00:00 2001 From: Svetlana Orlik Date: Tue, 22 Mar 2016 11:43:08 +0300 Subject: staging: iio: accel: adis16240: Replace 'unsigned' with 'unsigned int' Replace 'unsigned' with 'unsigned int' to avoid checkpatch warning. Signed-off-by: Svetlana Orlik Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/accel/adis16240_core.c b/drivers/staging/iio/accel/adis16240_core.c index 1b5b685..a425e18 100644 --- a/drivers/staging/iio/accel/adis16240_core.c +++ b/drivers/staging/iio/accel/adis16240_core.c @@ -29,13 +29,13 @@ static ssize_t adis16240_spi_read_signed(struct device *dev, struct device_attribute *attr, char *buf, - unsigned bits) + unsigned int bits) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct adis *st = iio_priv(indio_dev); int ret; s16 val = 0; - unsigned shift = 16 - bits; + unsigned int shift = 16 - bits; struct iio_dev_attr *this_attr = to_iio_dev_attr(attr); ret = adis_read_reg_16(st, -- cgit v0.10.2 From 81da8a8913e768d8ce0de9edb5699f3879c1dd51 Mon Sep 17 00:00:00 2001 From: Svetlana Orlik Date: Tue, 22 Mar 2016 18:07:22 +0300 Subject: staging: iio: accel: adis16204: Fix 'line over 80 characters' warning Many of the comments in the same lines with #define caused checkpatch warning 'line over 80 characters'. Move all such comments to line before #define. This style is already used in some other .h files in accel: Add blank lines after #define to improve readability. Signed-off-by: Svetlana Orlik Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/accel/adis16204.h b/drivers/staging/iio/accel/adis16204.h index 0b23f0b..cfc4038 100644 --- a/drivers/staging/iio/accel/adis16204.h +++ b/drivers/staging/iio/accel/adis16204.h @@ -3,53 +3,130 @@ #define ADIS16204_STARTUP_DELAY 220 /* ms */ -#define ADIS16204_FLASH_CNT 0x00 /* Flash memory write count */ -#define ADIS16204_SUPPLY_OUT 0x02 /* Output, power supply */ -#define ADIS16204_XACCL_OUT 0x04 /* Output, x-axis accelerometer */ -#define ADIS16204_YACCL_OUT 0x06 /* Output, y-axis accelerometer */ -#define ADIS16204_AUX_ADC 0x08 /* Output, auxiliary ADC input */ -#define ADIS16204_TEMP_OUT 0x0A /* Output, temperature */ -#define ADIS16204_X_PEAK_OUT 0x0C /* Twos complement */ -#define ADIS16204_Y_PEAK_OUT 0x0E /* Twos complement */ -#define ADIS16204_XACCL_NULL 0x10 /* Calibration, x-axis acceleration offset null */ -#define ADIS16204_YACCL_NULL 0x12 /* Calibration, y-axis acceleration offset null */ -#define ADIS16204_XACCL_SCALE 0x14 /* X-axis scale factor calibration register */ -#define ADIS16204_YACCL_SCALE 0x16 /* Y-axis scale factor calibration register */ -#define ADIS16204_XY_RSS_OUT 0x18 /* XY combined acceleration (RSS) */ -#define ADIS16204_XY_PEAK_OUT 0x1A /* Peak, XY combined output (RSS) */ -#define ADIS16204_CAP_BUF_1 0x1C /* Capture buffer output register 1 */ -#define ADIS16204_CAP_BUF_2 0x1E /* Capture buffer output register 2 */ -#define ADIS16204_ALM_MAG1 0x20 /* Alarm 1 amplitude threshold */ -#define ADIS16204_ALM_MAG2 0x22 /* Alarm 2 amplitude threshold */ -#define ADIS16204_ALM_CTRL 0x28 /* Alarm control */ -#define ADIS16204_CAPT_PNTR 0x2A /* Capture register address pointer */ -#define ADIS16204_AUX_DAC 0x30 /* Auxiliary DAC data */ -#define ADIS16204_GPIO_CTRL 0x32 /* General-purpose digital input/output control */ -#define ADIS16204_MSC_CTRL 0x34 /* Miscellaneous control */ -#define ADIS16204_SMPL_PRD 0x36 /* Internal sample period (rate) control */ -#define ADIS16204_AVG_CNT 0x38 /* Operation, filter configuration */ -#define ADIS16204_SLP_CNT 0x3A /* Operation, sleep mode control */ -#define ADIS16204_DIAG_STAT 0x3C /* Diagnostics, system status register */ -#define ADIS16204_GLOB_CMD 0x3E /* Operation, system command register */ +/* Flash memory write count */ +#define ADIS16204_FLASH_CNT 0x00 + +/* Output, power supply */ +#define ADIS16204_SUPPLY_OUT 0x02 + +/* Output, x-axis accelerometer */ +#define ADIS16204_XACCL_OUT 0x04 + +/* Output, y-axis accelerometer */ +#define ADIS16204_YACCL_OUT 0x06 + +/* Output, auxiliary ADC input */ +#define ADIS16204_AUX_ADC 0x08 + +/* Output, temperature */ +#define ADIS16204_TEMP_OUT 0x0A + +/* Twos complement */ +#define ADIS16204_X_PEAK_OUT 0x0C +#define ADIS16204_Y_PEAK_OUT 0x0E + +/* Calibration, x-axis acceleration offset null */ +#define ADIS16204_XACCL_NULL 0x10 + +/* Calibration, y-axis acceleration offset null */ +#define ADIS16204_YACCL_NULL 0x12 + +/* X-axis scale factor calibration register */ +#define ADIS16204_XACCL_SCALE 0x14 + +/* Y-axis scale factor calibration register */ +#define ADIS16204_YACCL_SCALE 0x16 + +/* XY combined acceleration (RSS) */ +#define ADIS16204_XY_RSS_OUT 0x18 + +/* Peak, XY combined output (RSS) */ +#define ADIS16204_XY_PEAK_OUT 0x1A + +/* Capture buffer output register 1 */ +#define ADIS16204_CAP_BUF_1 0x1C + +/* Capture buffer output register 2 */ +#define ADIS16204_CAP_BUF_2 0x1E + +/* Alarm 1 amplitude threshold */ +#define ADIS16204_ALM_MAG1 0x20 + +/* Alarm 2 amplitude threshold */ +#define ADIS16204_ALM_MAG2 0x22 + +/* Alarm control */ +#define ADIS16204_ALM_CTRL 0x28 + +/* Capture register address pointer */ +#define ADIS16204_CAPT_PNTR 0x2A + +/* Auxiliary DAC data */ +#define ADIS16204_AUX_DAC 0x30 + +/* General-purpose digital input/output control */ +#define ADIS16204_GPIO_CTRL 0x32 + +/* Miscellaneous control */ +#define ADIS16204_MSC_CTRL 0x34 + +/* Internal sample period (rate) control */ +#define ADIS16204_SMPL_PRD 0x36 + +/* Operation, filter configuration */ +#define ADIS16204_AVG_CNT 0x38 + +/* Operation, sleep mode control */ +#define ADIS16204_SLP_CNT 0x3A + +/* Diagnostics, system status register */ +#define ADIS16204_DIAG_STAT 0x3C + +/* Operation, system command register */ +#define ADIS16204_GLOB_CMD 0x3E /* MSC_CTRL */ -#define ADIS16204_MSC_CTRL_PWRUP_SELF_TEST BIT(10) /* Self-test at power-on: 1 = disabled, 0 = enabled */ -#define ADIS16204_MSC_CTRL_SELF_TEST_EN BIT(8) /* Self-test enable */ -#define ADIS16204_MSC_CTRL_DATA_RDY_EN BIT(2) /* Data-ready enable: 1 = enabled, 0 = disabled */ -#define ADIS16204_MSC_CTRL_ACTIVE_HIGH BIT(1) /* Data-ready polarity: 1 = active high, 0 = active low */ -#define ADIS16204_MSC_CTRL_DATA_RDY_DIO2 BIT(0) /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */ + +/* Self-test at power-on: 1 = disabled, 0 = enabled */ +#define ADIS16204_MSC_CTRL_PWRUP_SELF_TEST BIT(10) + +/* Self-test enable */ +#define ADIS16204_MSC_CTRL_SELF_TEST_EN BIT(8) + +/* Data-ready enable: 1 = enabled, 0 = disabled */ +#define ADIS16204_MSC_CTRL_DATA_RDY_EN BIT(2) + +/* Data-ready polarity: 1 = active high, 0 = active low */ +#define ADIS16204_MSC_CTRL_ACTIVE_HIGH BIT(1) + +/* Data-ready line selection: 1 = DIO2, 0 = DIO1 */ +#define ADIS16204_MSC_CTRL_DATA_RDY_DIO2 BIT(0) /* DIAG_STAT */ -#define ADIS16204_DIAG_STAT_ALARM2 BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ -#define ADIS16204_DIAG_STAT_ALARM1 BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ -#define ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT 5 /* Self-test diagnostic error flag: 1 = error condition, - 0 = normal operation */ -#define ADIS16204_DIAG_STAT_SPI_FAIL_BIT 3 /* SPI communications failure */ -#define ADIS16204_DIAG_STAT_FLASH_UPT_BIT 2 /* Flash update failure */ -#define ADIS16204_DIAG_STAT_POWER_HIGH_BIT 1 /* Power supply above 3.625 V */ -#define ADIS16204_DIAG_STAT_POWER_LOW_BIT 0 /* Power supply below 2.975 V */ + +/* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ +#define ADIS16204_DIAG_STAT_ALARM2 BIT(9) + +/* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ +#define ADIS16204_DIAG_STAT_ALARM1 BIT(8) + +/* Self-test diagnostic error flag: 1 = error condition, 0 = normal operation */ +#define ADIS16204_DIAG_STAT_SELFTEST_FAIL_BIT 5 + +/* SPI communications failure */ +#define ADIS16204_DIAG_STAT_SPI_FAIL_BIT 3 + +/* Flash update failure */ +#define ADIS16204_DIAG_STAT_FLASH_UPT_BIT 2 + +/* Power supply above 3.625 V */ +#define ADIS16204_DIAG_STAT_POWER_HIGH_BIT 1 + +/* Power supply below 2.975 V */ +#define ADIS16204_DIAG_STAT_POWER_LOW_BIT 0 /* GLOB_CMD */ + #define ADIS16204_GLOB_CMD_SW_RESET BIT(7) #define ADIS16204_GLOB_CMD_CLEAR_STAT BIT(4) #define ADIS16204_GLOB_CMD_FACTORY_CAL BIT(1) -- cgit v0.10.2 From a48b2362dd8bcdb3d8c65c7e5eca942bda7762b5 Mon Sep 17 00:00:00 2001 From: Svetlana Orlik Date: Tue, 22 Mar 2016 18:08:03 +0300 Subject: staging: iio: accel: adis16203: Fix 'line over 80 characters' warning Many of the comments in the same lines with #define caused checkpatch warning 'line over 80 characters'. Move all such comments to line before #define. This style is already used in some other .h files in accel: Add blank lines after #define to improve readability. Signed-off-by: Svetlana Orlik Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/accel/adis16203.h b/drivers/staging/iio/accel/adis16203.h index 6426e38..b483e4e 100644 --- a/drivers/staging/iio/accel/adis16203.h +++ b/drivers/staging/iio/accel/adis16203.h @@ -3,45 +3,111 @@ #define ADIS16203_STARTUP_DELAY 220 /* ms */ -#define ADIS16203_FLASH_CNT 0x00 /* Flash memory write count */ -#define ADIS16203_SUPPLY_OUT 0x02 /* Output, power supply */ -#define ADIS16203_AUX_ADC 0x08 /* Output, auxiliary ADC input */ -#define ADIS16203_TEMP_OUT 0x0A /* Output, temperature */ -#define ADIS16203_XINCL_OUT 0x0C /* Output, x-axis inclination */ -#define ADIS16203_YINCL_OUT 0x0E /* Output, y-axis inclination */ -#define ADIS16203_INCL_NULL 0x18 /* Incline null calibration */ -#define ADIS16203_ALM_MAG1 0x20 /* Alarm 1 amplitude threshold */ -#define ADIS16203_ALM_MAG2 0x22 /* Alarm 2 amplitude threshold */ -#define ADIS16203_ALM_SMPL1 0x24 /* Alarm 1, sample period */ -#define ADIS16203_ALM_SMPL2 0x26 /* Alarm 2, sample period */ -#define ADIS16203_ALM_CTRL 0x28 /* Alarm control */ -#define ADIS16203_AUX_DAC 0x30 /* Auxiliary DAC data */ -#define ADIS16203_GPIO_CTRL 0x32 /* General-purpose digital input/output control */ -#define ADIS16203_MSC_CTRL 0x34 /* Miscellaneous control */ -#define ADIS16203_SMPL_PRD 0x36 /* Internal sample period (rate) control */ -#define ADIS16203_AVG_CNT 0x38 /* Operation, filter configuration */ -#define ADIS16203_SLP_CNT 0x3A /* Operation, sleep mode control */ -#define ADIS16203_DIAG_STAT 0x3C /* Diagnostics, system status register */ -#define ADIS16203_GLOB_CMD 0x3E /* Operation, system command register */ +/* Flash memory write count */ +#define ADIS16203_FLASH_CNT 0x00 + +/* Output, power supply */ +#define ADIS16203_SUPPLY_OUT 0x02 + +/* Output, auxiliary ADC input */ +#define ADIS16203_AUX_ADC 0x08 + +/* Output, temperature */ +#define ADIS16203_TEMP_OUT 0x0A + +/* Output, x-axis inclination */ +#define ADIS16203_XINCL_OUT 0x0C + +/* Output, y-axis inclination */ +#define ADIS16203_YINCL_OUT 0x0E + +/* Incline null calibration */ +#define ADIS16203_INCL_NULL 0x18 + +/* Alarm 1 amplitude threshold */ +#define ADIS16203_ALM_MAG1 0x20 + +/* Alarm 2 amplitude threshold */ +#define ADIS16203_ALM_MAG2 0x22 + +/* Alarm 1, sample period */ +#define ADIS16203_ALM_SMPL1 0x24 + +/* Alarm 2, sample period */ +#define ADIS16203_ALM_SMPL2 0x26 + +/* Alarm control */ +#define ADIS16203_ALM_CTRL 0x28 + +/* Auxiliary DAC data */ +#define ADIS16203_AUX_DAC 0x30 + +/* General-purpose digital input/output control */ +#define ADIS16203_GPIO_CTRL 0x32 + +/* Miscellaneous control */ +#define ADIS16203_MSC_CTRL 0x34 + +/* Internal sample period (rate) control */ +#define ADIS16203_SMPL_PRD 0x36 + +/* Operation, filter configuration */ +#define ADIS16203_AVG_CNT 0x38 + +/* Operation, sleep mode control */ +#define ADIS16203_SLP_CNT 0x3A + +/* Diagnostics, system status register */ +#define ADIS16203_DIAG_STAT 0x3C + +/* Operation, system command register */ +#define ADIS16203_GLOB_CMD 0x3E /* MSC_CTRL */ -#define ADIS16203_MSC_CTRL_PWRUP_SELF_TEST BIT(10) /* Self-test at power-on: 1 = disabled, 0 = enabled */ -#define ADIS16203_MSC_CTRL_REVERSE_ROT_EN BIT(9) /* Reverses rotation of both inclination outputs */ -#define ADIS16203_MSC_CTRL_SELF_TEST_EN BIT(8) /* Self-test enable */ -#define ADIS16203_MSC_CTRL_DATA_RDY_EN BIT(2) /* Data-ready enable: 1 = enabled, 0 = disabled */ -#define ADIS16203_MSC_CTRL_ACTIVE_HIGH BIT(1) /* Data-ready polarity: 1 = active high, 0 = active low */ -#define ADIS16203_MSC_CTRL_DATA_RDY_DIO1 BIT(0) /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */ + +/* Self-test at power-on: 1 = disabled, 0 = enabled */ +#define ADIS16203_MSC_CTRL_PWRUP_SELF_TEST BIT(10) + +/* Reverses rotation of both inclination outputs */ +#define ADIS16203_MSC_CTRL_REVERSE_ROT_EN BIT(9) + +/* Self-test enable */ +#define ADIS16203_MSC_CTRL_SELF_TEST_EN BIT(8) + +/* Data-ready enable: 1 = enabled, 0 = disabled */ +#define ADIS16203_MSC_CTRL_DATA_RDY_EN BIT(2) + +/* Data-ready polarity: 1 = active high, 0 = active low */ +#define ADIS16203_MSC_CTRL_ACTIVE_HIGH BIT(1) + +/* Data-ready line selection: 1 = DIO1, 0 = DIO0 */ +#define ADIS16203_MSC_CTRL_DATA_RDY_DIO1 BIT(0) /* DIAG_STAT */ -#define ADIS16203_DIAG_STAT_ALARM2 BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ -#define ADIS16203_DIAG_STAT_ALARM1 BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ -#define ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT 5 /* Self-test diagnostic error flag */ -#define ADIS16203_DIAG_STAT_SPI_FAIL_BIT 3 /* SPI communications failure */ -#define ADIS16203_DIAG_STAT_FLASH_UPT_BIT 2 /* Flash update failure */ -#define ADIS16203_DIAG_STAT_POWER_HIGH_BIT 1 /* Power supply above 3.625 V */ -#define ADIS16203_DIAG_STAT_POWER_LOW_BIT 0 /* Power supply below 3.15 V */ + +/* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ +#define ADIS16203_DIAG_STAT_ALARM2 BIT(9) + +/* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ +#define ADIS16203_DIAG_STAT_ALARM1 BIT(8) + +/* Self-test diagnostic error flag */ +#define ADIS16203_DIAG_STAT_SELFTEST_FAIL_BIT 5 + +/* SPI communications failure */ +#define ADIS16203_DIAG_STAT_SPI_FAIL_BIT 3 + +/* Flash update failure */ +#define ADIS16203_DIAG_STAT_FLASH_UPT_BIT 2 + +/* Power supply above 3.625 V */ +#define ADIS16203_DIAG_STAT_POWER_HIGH_BIT 1 + +/* Power supply below 3.15 V */ +#define ADIS16203_DIAG_STAT_POWER_LOW_BIT 0 /* GLOB_CMD */ + #define ADIS16203_GLOB_CMD_SW_RESET BIT(7) #define ADIS16203_GLOB_CMD_CLEAR_STAT BIT(4) #define ADIS16203_GLOB_CMD_FACTORY_CAL BIT(1) -- cgit v0.10.2 From 0f5c42116ee7c6f9495222bf53370d19003b946b Mon Sep 17 00:00:00 2001 From: Svetlana Orlik Date: Tue, 22 Mar 2016 18:08:38 +0300 Subject: staging: iio: accel: adis16201: Fix 'line over 80 characters' warning Many of the comments in the same lines with #define caused checkpatch warning 'line over 80 characters'. Move all such comments to line before #define. This style is already used in some other .h files in accel: Add blank lines after #define to improve readability. Signed-off-by: Svetlana Orlik Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/accel/adis16201.h b/drivers/staging/iio/accel/adis16201.h index e6b8c9a..64844ad 100644 --- a/drivers/staging/iio/accel/adis16201.h +++ b/drivers/staging/iio/accel/adis16201.h @@ -3,51 +3,129 @@ #define ADIS16201_STARTUP_DELAY 220 /* ms */ -#define ADIS16201_FLASH_CNT 0x00 /* Flash memory write count */ -#define ADIS16201_SUPPLY_OUT 0x02 /* Output, power supply */ -#define ADIS16201_XACCL_OUT 0x04 /* Output, x-axis accelerometer */ -#define ADIS16201_YACCL_OUT 0x06 /* Output, y-axis accelerometer */ -#define ADIS16201_AUX_ADC 0x08 /* Output, auxiliary ADC input */ -#define ADIS16201_TEMP_OUT 0x0A /* Output, temperature */ -#define ADIS16201_XINCL_OUT 0x0C /* Output, x-axis inclination */ -#define ADIS16201_YINCL_OUT 0x0E /* Output, y-axis inclination */ -#define ADIS16201_XACCL_OFFS 0x10 /* Calibration, x-axis acceleration offset */ -#define ADIS16201_YACCL_OFFS 0x12 /* Calibration, y-axis acceleration offset */ -#define ADIS16201_XACCL_SCALE 0x14 /* x-axis acceleration scale factor */ -#define ADIS16201_YACCL_SCALE 0x16 /* y-axis acceleration scale factor */ -#define ADIS16201_XINCL_OFFS 0x18 /* Calibration, x-axis inclination offset */ -#define ADIS16201_YINCL_OFFS 0x1A /* Calibration, y-axis inclination offset */ -#define ADIS16201_XINCL_SCALE 0x1C /* x-axis inclination scale factor */ -#define ADIS16201_YINCL_SCALE 0x1E /* y-axis inclination scale factor */ -#define ADIS16201_ALM_MAG1 0x20 /* Alarm 1 amplitude threshold */ -#define ADIS16201_ALM_MAG2 0x22 /* Alarm 2 amplitude threshold */ -#define ADIS16201_ALM_SMPL1 0x24 /* Alarm 1, sample period */ -#define ADIS16201_ALM_SMPL2 0x26 /* Alarm 2, sample period */ -#define ADIS16201_ALM_CTRL 0x28 /* Alarm control */ -#define ADIS16201_AUX_DAC 0x30 /* Auxiliary DAC data */ -#define ADIS16201_GPIO_CTRL 0x32 /* General-purpose digital input/output control */ -#define ADIS16201_MSC_CTRL 0x34 /* Miscellaneous control */ -#define ADIS16201_SMPL_PRD 0x36 /* Internal sample period (rate) control */ -#define ADIS16201_AVG_CNT 0x38 /* Operation, filter configuration */ -#define ADIS16201_SLP_CNT 0x3A /* Operation, sleep mode control */ -#define ADIS16201_DIAG_STAT 0x3C /* Diagnostics, system status register */ -#define ADIS16201_GLOB_CMD 0x3E /* Operation, system command register */ +/* Flash memory write count */ +#define ADIS16201_FLASH_CNT 0x00 + +/* Output, power supply */ +#define ADIS16201_SUPPLY_OUT 0x02 + +/* Output, x-axis accelerometer */ +#define ADIS16201_XACCL_OUT 0x04 + +/* Output, y-axis accelerometer */ +#define ADIS16201_YACCL_OUT 0x06 + +/* Output, auxiliary ADC input */ +#define ADIS16201_AUX_ADC 0x08 + +/* Output, temperature */ +#define ADIS16201_TEMP_OUT 0x0A + +/* Output, x-axis inclination */ +#define ADIS16201_XINCL_OUT 0x0C + +/* Output, y-axis inclination */ +#define ADIS16201_YINCL_OUT 0x0E + +/* Calibration, x-axis acceleration offset */ +#define ADIS16201_XACCL_OFFS 0x10 + +/* Calibration, y-axis acceleration offset */ +#define ADIS16201_YACCL_OFFS 0x12 + +/* x-axis acceleration scale factor */ +#define ADIS16201_XACCL_SCALE 0x14 + +/* y-axis acceleration scale factor */ +#define ADIS16201_YACCL_SCALE 0x16 + +/* Calibration, x-axis inclination offset */ +#define ADIS16201_XINCL_OFFS 0x18 + +/* Calibration, y-axis inclination offset */ +#define ADIS16201_YINCL_OFFS 0x1A + +/* x-axis inclination scale factor */ +#define ADIS16201_XINCL_SCALE 0x1C + +/* y-axis inclination scale factor */ +#define ADIS16201_YINCL_SCALE 0x1E + +/* Alarm 1 amplitude threshold */ +#define ADIS16201_ALM_MAG1 0x20 + +/* Alarm 2 amplitude threshold */ +#define ADIS16201_ALM_MAG2 0x22 + +/* Alarm 1, sample period */ +#define ADIS16201_ALM_SMPL1 0x24 + +/* Alarm 2, sample period */ +#define ADIS16201_ALM_SMPL2 0x26 + +/* Alarm control */ +#define ADIS16201_ALM_CTRL 0x28 + +/* Auxiliary DAC data */ +#define ADIS16201_AUX_DAC 0x30 + +/* General-purpose digital input/output control */ +#define ADIS16201_GPIO_CTRL 0x32 + +/* Miscellaneous control */ +#define ADIS16201_MSC_CTRL 0x34 + +/* Internal sample period (rate) control */ +#define ADIS16201_SMPL_PRD 0x36 + +/* Operation, filter configuration */ +#define ADIS16201_AVG_CNT 0x38 + +/* Operation, sleep mode control */ +#define ADIS16201_SLP_CNT 0x3A + +/* Diagnostics, system status register */ +#define ADIS16201_DIAG_STAT 0x3C + +/* Operation, system command register */ +#define ADIS16201_GLOB_CMD 0x3E /* MSC_CTRL */ -#define ADIS16201_MSC_CTRL_SELF_TEST_EN BIT(8) /* Self-test enable */ -#define ADIS16201_MSC_CTRL_DATA_RDY_EN BIT(2) /* Data-ready enable: 1 = enabled, 0 = disabled */ -#define ADIS16201_MSC_CTRL_ACTIVE_HIGH BIT(1) /* Data-ready polarity: 1 = active high, 0 = active low */ -#define ADIS16201_MSC_CTRL_DATA_RDY_DIO1 BIT(0) /* Data-ready line selection: 1 = DIO1, 0 = DIO0 */ + +/* Self-test enable */ +#define ADIS16201_MSC_CTRL_SELF_TEST_EN BIT(8) + +/* Data-ready enable: 1 = enabled, 0 = disabled */ +#define ADIS16201_MSC_CTRL_DATA_RDY_EN BIT(2) + +/* Data-ready polarity: 1 = active high, 0 = active low */ +#define ADIS16201_MSC_CTRL_ACTIVE_HIGH BIT(1) + +/* Data-ready line selection: 1 = DIO1, 0 = DIO0 */ +#define ADIS16201_MSC_CTRL_DATA_RDY_DIO1 BIT(0) /* DIAG_STAT */ -#define ADIS16201_DIAG_STAT_ALARM2 BIT(9) /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ -#define ADIS16201_DIAG_STAT_ALARM1 BIT(8) /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ -#define ADIS16201_DIAG_STAT_SPI_FAIL_BIT 3 /* SPI communications failure */ -#define ADIS16201_DIAG_STAT_FLASH_UPT_BIT 2 /* Flash update failure */ -#define ADIS16201_DIAG_STAT_POWER_HIGH_BIT 1 /* Power supply above 3.625 V */ -#define ADIS16201_DIAG_STAT_POWER_LOW_BIT 0 /* Power supply below 3.15 V */ + +/* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ +#define ADIS16201_DIAG_STAT_ALARM2 BIT(9) + +/* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ +#define ADIS16201_DIAG_STAT_ALARM1 BIT(8) + +/* SPI communications failure */ +#define ADIS16201_DIAG_STAT_SPI_FAIL_BIT 3 + +/* Flash update failure */ +#define ADIS16201_DIAG_STAT_FLASH_UPT_BIT 2 + +/* Power supply above 3.625 V */ +#define ADIS16201_DIAG_STAT_POWER_HIGH_BIT 1 + +/* Power supply below 3.15 V */ +#define ADIS16201_DIAG_STAT_POWER_LOW_BIT 0 /* GLOB_CMD */ + #define ADIS16201_GLOB_CMD_SW_RESET BIT(7) #define ADIS16201_GLOB_CMD_FACTORY_CAL BIT(1) -- cgit v0.10.2 From 328bdff8ec599ff1b86e52f5d99d31e55c4fbb0b Mon Sep 17 00:00:00 2001 From: Svetlana Orlik Date: Tue, 22 Mar 2016 18:09:21 +0300 Subject: staging: iio: accel: adis16209: Improve readability Lines with #define interlaced with comment lines making a mess. Separate groups of #define-comment with blank lines. Separate section title comments with blank lines. Signed-off-by: Svetlana Orlik Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/accel/adis16209.h b/drivers/staging/iio/accel/adis16209.h index 813698d..315f1c0 100644 --- a/drivers/staging/iio/accel/adis16209.h +++ b/drivers/staging/iio/accel/adis16209.h @@ -5,88 +5,127 @@ /* Flash memory write count */ #define ADIS16209_FLASH_CNT 0x00 + /* Output, power supply */ #define ADIS16209_SUPPLY_OUT 0x02 + /* Output, x-axis accelerometer */ #define ADIS16209_XACCL_OUT 0x04 + /* Output, y-axis accelerometer */ #define ADIS16209_YACCL_OUT 0x06 + /* Output, auxiliary ADC input */ #define ADIS16209_AUX_ADC 0x08 + /* Output, temperature */ #define ADIS16209_TEMP_OUT 0x0A + /* Output, x-axis inclination */ #define ADIS16209_XINCL_OUT 0x0C + /* Output, y-axis inclination */ #define ADIS16209_YINCL_OUT 0x0E + /* Output, +/-180 vertical rotational position */ #define ADIS16209_ROT_OUT 0x10 + /* Calibration, x-axis acceleration offset null */ #define ADIS16209_XACCL_NULL 0x12 + /* Calibration, y-axis acceleration offset null */ #define ADIS16209_YACCL_NULL 0x14 + /* Calibration, x-axis inclination offset null */ #define ADIS16209_XINCL_NULL 0x16 + /* Calibration, y-axis inclination offset null */ #define ADIS16209_YINCL_NULL 0x18 + /* Calibration, vertical rotation offset null */ #define ADIS16209_ROT_NULL 0x1A + /* Alarm 1 amplitude threshold */ #define ADIS16209_ALM_MAG1 0x20 + /* Alarm 2 amplitude threshold */ #define ADIS16209_ALM_MAG2 0x22 + /* Alarm 1, sample period */ #define ADIS16209_ALM_SMPL1 0x24 + /* Alarm 2, sample period */ #define ADIS16209_ALM_SMPL2 0x26 + /* Alarm control */ #define ADIS16209_ALM_CTRL 0x28 + /* Auxiliary DAC data */ #define ADIS16209_AUX_DAC 0x30 + /* General-purpose digital input/output control */ #define ADIS16209_GPIO_CTRL 0x32 + /* Miscellaneous control */ #define ADIS16209_MSC_CTRL 0x34 + /* Internal sample period (rate) control */ #define ADIS16209_SMPL_PRD 0x36 + /* Operation, filter configuration */ #define ADIS16209_AVG_CNT 0x38 + /* Operation, sleep mode control */ #define ADIS16209_SLP_CNT 0x3A + /* Diagnostics, system status register */ #define ADIS16209_DIAG_STAT 0x3C + /* Operation, system command register */ #define ADIS16209_GLOB_CMD 0x3E /* MSC_CTRL */ + /* Self-test at power-on: 1 = disabled, 0 = enabled */ #define ADIS16209_MSC_CTRL_PWRUP_SELF_TEST BIT(10) + /* Self-test enable */ #define ADIS16209_MSC_CTRL_SELF_TEST_EN BIT(8) + /* Data-ready enable: 1 = enabled, 0 = disabled */ #define ADIS16209_MSC_CTRL_DATA_RDY_EN BIT(2) + /* Data-ready polarity: 1 = active high, 0 = active low */ #define ADIS16209_MSC_CTRL_ACTIVE_HIGH BIT(1) + /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */ #define ADIS16209_MSC_CTRL_DATA_RDY_DIO2 BIT(0) /* DIAG_STAT */ + /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ #define ADIS16209_DIAG_STAT_ALARM2 BIT(9) + /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ #define ADIS16209_DIAG_STAT_ALARM1 BIT(8) + /* Self-test diagnostic error flag: 1 = error condition, 0 = normal operation */ #define ADIS16209_DIAG_STAT_SELFTEST_FAIL_BIT 5 + /* SPI communications failure */ #define ADIS16209_DIAG_STAT_SPI_FAIL_BIT 3 + /* Flash update failure */ #define ADIS16209_DIAG_STAT_FLASH_UPT_BIT 2 + /* Power supply above 3.625 V */ #define ADIS16209_DIAG_STAT_POWER_HIGH_BIT 1 + /* Power supply below 3.15 V */ #define ADIS16209_DIAG_STAT_POWER_LOW_BIT 0 /* GLOB_CMD */ + #define ADIS16209_GLOB_CMD_SW_RESET BIT(7) #define ADIS16209_GLOB_CMD_CLEAR_STAT BIT(4) #define ADIS16209_GLOB_CMD_FACTORY_CAL BIT(1) -- cgit v0.10.2 From 7da6ec4870801c7be8cafb861a87697dd842a1d4 Mon Sep 17 00:00:00 2001 From: Svetlana Orlik Date: Tue, 22 Mar 2016 18:09:53 +0300 Subject: staging: iio: accel: adis16220: Improve readability Lines with #define interlaced with comment lines making a mess. Separate groups of #define-comment with blank lines. Separate section title comments with blank lines. Signed-off-by: Svetlana Orlik Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/accel/adis16220.h b/drivers/staging/iio/accel/adis16220.h index eab8633..31a1268 100644 --- a/drivers/staging/iio/accel/adis16220.h +++ b/drivers/staging/iio/accel/adis16220.h @@ -7,111 +7,159 @@ /* Flash memory write count */ #define ADIS16220_FLASH_CNT 0x00 + /* Control, acceleration offset adjustment control */ #define ADIS16220_ACCL_NULL 0x02 + /* Control, AIN1 offset adjustment control */ #define ADIS16220_AIN1_NULL 0x04 + /* Control, AIN2 offset adjustment control */ #define ADIS16220_AIN2_NULL 0x06 + /* Output, power supply during capture */ #define ADIS16220_CAPT_SUPPLY 0x0A + /* Output, temperature during capture */ #define ADIS16220_CAPT_TEMP 0x0C + /* Output, peak acceleration during capture */ #define ADIS16220_CAPT_PEAKA 0x0E + /* Output, peak AIN1 level during capture */ #define ADIS16220_CAPT_PEAK1 0x10 + /* Output, peak AIN2 level during capture */ #define ADIS16220_CAPT_PEAK2 0x12 + /* Output, capture buffer for acceleration */ #define ADIS16220_CAPT_BUFA 0x14 + /* Output, capture buffer for AIN1 */ #define ADIS16220_CAPT_BUF1 0x16 + /* Output, capture buffer for AIN2 */ #define ADIS16220_CAPT_BUF2 0x18 + /* Control, capture buffer address pointer */ #define ADIS16220_CAPT_PNTR 0x1A + /* Control, capture control register */ #define ADIS16220_CAPT_CTRL 0x1C + /* Control, capture period (automatic mode) */ #define ADIS16220_CAPT_PRD 0x1E + /* Control, Alarm A, acceleration peak threshold */ #define ADIS16220_ALM_MAGA 0x20 + /* Control, Alarm 1, AIN1 peak threshold */ #define ADIS16220_ALM_MAG1 0x22 + /* Control, Alarm 2, AIN2 peak threshold */ #define ADIS16220_ALM_MAG2 0x24 + /* Control, Alarm S, peak threshold */ #define ADIS16220_ALM_MAGS 0x26 + /* Control, alarm configuration register */ #define ADIS16220_ALM_CTRL 0x28 + /* Control, general I/O configuration */ #define ADIS16220_GPIO_CTRL 0x32 + /* Control, self-test control, AIN configuration */ #define ADIS16220_MSC_CTRL 0x34 + /* Control, digital I/O configuration */ #define ADIS16220_DIO_CTRL 0x36 + /* Control, filter configuration */ #define ADIS16220_AVG_CNT 0x38 + /* Status, system status */ #define ADIS16220_DIAG_STAT 0x3C + /* Control, system commands */ #define ADIS16220_GLOB_CMD 0x3E + /* Status, self-test response */ #define ADIS16220_ST_DELTA 0x40 + /* Lot Identification Code 1 */ #define ADIS16220_LOT_ID1 0x52 + /* Lot Identification Code 2 */ #define ADIS16220_LOT_ID2 0x54 + /* Product identifier; convert to decimal = 16220 */ #define ADIS16220_PROD_ID 0x56 + /* Serial number */ #define ADIS16220_SERIAL_NUM 0x58 #define ADIS16220_CAPTURE_SIZE 2048 /* MSC_CTRL */ + #define ADIS16220_MSC_CTRL_SELF_TEST_EN BIT(8) #define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN1 BIT(1) #define ADIS16220_MSC_CTRL_POWER_SUP_COM_AIN2 BIT(0) /* DIO_CTRL */ + #define ADIS16220_MSC_CTRL_DIO2_BUSY_IND (BIT(5) | BIT(4)) #define ADIS16220_MSC_CTRL_DIO1_BUSY_IND (BIT(3) | BIT(2)) #define ADIS16220_MSC_CTRL_DIO2_ACT_HIGH BIT(1) #define ADIS16220_MSC_CTRL_DIO1_ACT_HIGH BIT(0) /* DIAG_STAT */ + /* AIN2 sample > ALM_MAG2 */ #define ADIS16220_DIAG_STAT_ALM_MAG2 BIT(14) + /* AIN1 sample > ALM_MAG1 */ #define ADIS16220_DIAG_STAT_ALM_MAG1 BIT(13) + /* Acceleration sample > ALM_MAGA */ #define ADIS16220_DIAG_STAT_ALM_MAGA BIT(12) + /* Error condition programmed into ALM_MAGS[11:0] and ALM_CTRL[5:4] is true */ #define ADIS16220_DIAG_STAT_ALM_MAGS BIT(11) + /* |Peak value in AIN2 data capture| > ALM_MAG2 */ #define ADIS16220_DIAG_STAT_PEAK_AIN2 BIT(10) + /* |Peak value in AIN1 data capture| > ALM_MAG1 */ #define ADIS16220_DIAG_STAT_PEAK_AIN1 BIT(9) + /* |Peak value in acceleration data capture| > ALM_MAGA */ #define ADIS16220_DIAG_STAT_PEAK_ACCEL BIT(8) + /* Data ready, capture complete */ #define ADIS16220_DIAG_STAT_DATA_RDY BIT(7) + #define ADIS16220_DIAG_STAT_FLASH_CHK BIT(6) + #define ADIS16220_DIAG_STAT_SELF_TEST BIT(5) + /* Capture period violation/interruption */ #define ADIS16220_DIAG_STAT_VIOLATION_BIT 4 + /* SPI communications failure */ #define ADIS16220_DIAG_STAT_SPI_FAIL_BIT 3 + /* Flash update failure */ #define ADIS16220_DIAG_STAT_FLASH_UPT_BIT 2 + /* Power supply above 3.625 V */ #define ADIS16220_DIAG_STAT_POWER_HIGH_BIT 1 + /* Power supply below 3.15 V */ #define ADIS16220_DIAG_STAT_POWER_LOW_BIT 0 /* GLOB_CMD */ + #define ADIS16220_GLOB_CMD_SW_RESET BIT(7) #define ADIS16220_GLOB_CMD_SELF_TEST BIT(2) #define ADIS16220_GLOB_CMD_PWR_DOWN BIT(1) -- cgit v0.10.2 From b075286912ac435f72d864b2a6dae7ec25eece5d Mon Sep 17 00:00:00 2001 From: Svetlana Orlik Date: Tue, 22 Mar 2016 18:10:32 +0300 Subject: staging: iio: accel: adis16240: Improve readability Lines with #define interlaced with comment lines making a mess. Separate groups of #define-comment with blank lines. Separate section title comments with blank lines. Signed-off-by: Svetlana Orlik Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/accel/adis16240.h b/drivers/staging/iio/accel/adis16240.h index 66b5ad2..b2cb37b 100644 --- a/drivers/staging/iio/accel/adis16240.h +++ b/drivers/staging/iio/accel/adis16240.h @@ -5,110 +5,160 @@ /* Flash memory write count */ #define ADIS16240_FLASH_CNT 0x00 + /* Output, power supply */ #define ADIS16240_SUPPLY_OUT 0x02 + /* Output, x-axis accelerometer */ #define ADIS16240_XACCL_OUT 0x04 + /* Output, y-axis accelerometer */ #define ADIS16240_YACCL_OUT 0x06 + /* Output, z-axis accelerometer */ #define ADIS16240_ZACCL_OUT 0x08 + /* Output, auxiliary ADC input */ #define ADIS16240_AUX_ADC 0x0A + /* Output, temperature */ #define ADIS16240_TEMP_OUT 0x0C + /* Output, x-axis acceleration peak */ #define ADIS16240_XPEAK_OUT 0x0E + /* Output, y-axis acceleration peak */ #define ADIS16240_YPEAK_OUT 0x10 + /* Output, z-axis acceleration peak */ #define ADIS16240_ZPEAK_OUT 0x12 + /* Output, sum-of-squares acceleration peak */ #define ADIS16240_XYZPEAK_OUT 0x14 + /* Output, Capture Buffer 1, X and Y acceleration */ #define ADIS16240_CAPT_BUF1 0x16 + /* Output, Capture Buffer 2, Z acceleration */ #define ADIS16240_CAPT_BUF2 0x18 + /* Diagnostic, error flags */ #define ADIS16240_DIAG_STAT 0x1A + /* Diagnostic, event counter */ #define ADIS16240_EVNT_CNTR 0x1C + /* Diagnostic, check sum value from firmware test */ #define ADIS16240_CHK_SUM 0x1E + /* Calibration, x-axis acceleration offset adjustment */ #define ADIS16240_XACCL_OFF 0x20 + /* Calibration, y-axis acceleration offset adjustment */ #define ADIS16240_YACCL_OFF 0x22 + /* Calibration, z-axis acceleration offset adjustment */ #define ADIS16240_ZACCL_OFF 0x24 + /* Clock, hour and minute */ #define ADIS16240_CLK_TIME 0x2E + /* Clock, month and day */ #define ADIS16240_CLK_DATE 0x30 + /* Clock, year */ #define ADIS16240_CLK_YEAR 0x32 + /* Wake-up setting, hour and minute */ #define ADIS16240_WAKE_TIME 0x34 + /* Wake-up setting, month and day */ #define ADIS16240_WAKE_DATE 0x36 + /* Alarm 1 amplitude threshold */ #define ADIS16240_ALM_MAG1 0x38 + /* Alarm 2 amplitude threshold */ #define ADIS16240_ALM_MAG2 0x3A + /* Alarm control */ #define ADIS16240_ALM_CTRL 0x3C + /* Capture, external trigger control */ #define ADIS16240_XTRIG_CTRL 0x3E + /* Capture, address pointer */ #define ADIS16240_CAPT_PNTR 0x40 + /* Capture, configuration and control */ #define ADIS16240_CAPT_CTRL 0x42 + /* General-purpose digital input/output control */ #define ADIS16240_GPIO_CTRL 0x44 + /* Miscellaneous control */ #define ADIS16240_MSC_CTRL 0x46 + /* Internal sample period (rate) control */ #define ADIS16240_SMPL_PRD 0x48 + /* System command */ #define ADIS16240_GLOB_CMD 0x4A /* MSC_CTRL */ + /* Enables sum-of-squares output (XYZPEAK_OUT) */ #define ADIS16240_MSC_CTRL_XYZPEAK_OUT_EN BIT(15) + /* Enables peak tracking output (XPEAK_OUT, YPEAK_OUT, and ZPEAK_OUT) */ #define ADIS16240_MSC_CTRL_X_Y_ZPEAK_OUT_EN BIT(14) + /* Self-test enable: 1 = apply electrostatic force, 0 = disabled */ #define ADIS16240_MSC_CTRL_SELF_TEST_EN BIT(8) + /* Data-ready enable: 1 = enabled, 0 = disabled */ #define ADIS16240_MSC_CTRL_DATA_RDY_EN BIT(2) + /* Data-ready polarity: 1 = active high, 0 = active low */ #define ADIS16240_MSC_CTRL_ACTIVE_HIGH BIT(1) + /* Data-ready line selection: 1 = DIO2, 0 = DIO1 */ #define ADIS16240_MSC_CTRL_DATA_RDY_DIO2 BIT(0) /* DIAG_STAT */ + /* Alarm 2 status: 1 = alarm active, 0 = alarm inactive */ #define ADIS16240_DIAG_STAT_ALARM2 BIT(9) + /* Alarm 1 status: 1 = alarm active, 0 = alarm inactive */ #define ADIS16240_DIAG_STAT_ALARM1 BIT(8) + /* Capture buffer full: 1 = capture buffer is full */ #define ADIS16240_DIAG_STAT_CPT_BUF_FUL BIT(7) + /* Flash test, checksum flag: 1 = mismatch, 0 = match */ #define ADIS16240_DIAG_STAT_CHKSUM BIT(6) + /* Power-on, self-test flag: 1 = failure, 0 = pass */ #define ADIS16240_DIAG_STAT_PWRON_FAIL_BIT 5 + /* Power-on self-test: 1 = in-progress, 0 = complete */ #define ADIS16240_DIAG_STAT_PWRON_BUSY BIT(4) + /* SPI communications failure */ #define ADIS16240_DIAG_STAT_SPI_FAIL_BIT 3 + /* Flash update failure */ #define ADIS16240_DIAG_STAT_FLASH_UPT_BIT 2 + /* Power supply above 3.625 V */ #define ADIS16240_DIAG_STAT_POWER_HIGH_BIT 1 + /* Power supply below 3.15 V */ #define ADIS16240_DIAG_STAT_POWER_LOW_BIT 0 /* GLOB_CMD */ + #define ADIS16240_GLOB_CMD_RESUME BIT(8) #define ADIS16240_GLOB_CMD_SW_RESET BIT(7) #define ADIS16240_GLOB_CMD_STANDBY BIT(2) -- cgit v0.10.2 From 992aa7b59f62411cb2e5d4192f8598c0f87f12a6 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Tue, 22 Mar 2016 18:20:46 +0900 Subject: staging: dgnc: fix camelcase of SerialDriver and PrintDriver fix the checkpatch.pl warning about CamelCase. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h index e4be81b..953c891 100644 --- a/drivers/staging/dgnc/dgnc_driver.h +++ b/drivers/staging/dgnc/dgnc_driver.h @@ -202,9 +202,9 @@ struct dgnc_board { * to our channels. */ - struct tty_driver SerialDriver; + struct tty_driver serial_driver; char SerialName[200]; - struct tty_driver PrintDriver; + struct tty_driver print_driver; char PrintName[200]; bool dgnc_Major_Serial_Registered; diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index bcd2bdf..081ac75 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -178,20 +178,20 @@ int dgnc_tty_register(struct dgnc_board *brd) { int rc = 0; - brd->SerialDriver.magic = TTY_DRIVER_MAGIC; + brd->serial_driver.magic = TTY_DRIVER_MAGIC; snprintf(brd->SerialName, MAXTTYNAMELEN, "tty_dgnc_%d_", brd->boardnum); - brd->SerialDriver.name = brd->SerialName; - brd->SerialDriver.name_base = 0; - brd->SerialDriver.major = 0; - brd->SerialDriver.minor_start = 0; - brd->SerialDriver.num = brd->maxports; - brd->SerialDriver.type = TTY_DRIVER_TYPE_SERIAL; - brd->SerialDriver.subtype = SERIAL_TYPE_NORMAL; - brd->SerialDriver.init_termios = DgncDefaultTermios; - brd->SerialDriver.driver_name = DRVSTR; - brd->SerialDriver.flags = (TTY_DRIVER_REAL_RAW | + brd->serial_driver.name = brd->SerialName; + brd->serial_driver.name_base = 0; + brd->serial_driver.major = 0; + brd->serial_driver.minor_start = 0; + brd->serial_driver.num = brd->maxports; + brd->serial_driver.type = TTY_DRIVER_TYPE_SERIAL; + brd->serial_driver.subtype = SERIAL_TYPE_NORMAL; + brd->serial_driver.init_termios = DgncDefaultTermios; + brd->serial_driver.driver_name = DRVSTR; + brd->serial_driver.flags = (TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_HARDWARE_BREAK); @@ -199,28 +199,28 @@ int dgnc_tty_register(struct dgnc_board *brd) * The kernel wants space to store pointers to * tty_struct's and termios's. */ - brd->SerialDriver.ttys = kcalloc(brd->maxports, - sizeof(*brd->SerialDriver.ttys), + brd->serial_driver.ttys = kcalloc(brd->maxports, + sizeof(*brd->serial_driver.ttys), GFP_KERNEL); - if (!brd->SerialDriver.ttys) + if (!brd->serial_driver.ttys) return -ENOMEM; - kref_init(&brd->SerialDriver.kref); - brd->SerialDriver.termios = kcalloc(brd->maxports, - sizeof(*brd->SerialDriver.termios), + kref_init(&brd->serial_driver.kref); + brd->serial_driver.termios = kcalloc(brd->maxports, + sizeof(*brd->serial_driver.termios), GFP_KERNEL); - if (!brd->SerialDriver.termios) + if (!brd->serial_driver.termios) return -ENOMEM; /* * Entry points for driver. Called by the kernel from * tty_io.c and n_tty.c. */ - tty_set_operations(&brd->SerialDriver, &dgnc_tty_ops); + tty_set_operations(&brd->serial_driver, &dgnc_tty_ops); if (!brd->dgnc_Major_Serial_Registered) { /* Register tty devices */ - rc = tty_register_driver(&brd->SerialDriver); + rc = tty_register_driver(&brd->serial_driver); if (rc < 0) { dev_dbg(&brd->pdev->dev, "Can't register tty device (%d)\n", rc); @@ -234,19 +234,19 @@ int dgnc_tty_register(struct dgnc_board *brd) * again, separately so we don't get the LD confused about what major * we are when we get into the dgnc_tty_open() routine. */ - brd->PrintDriver.magic = TTY_DRIVER_MAGIC; + brd->print_driver.magic = TTY_DRIVER_MAGIC; snprintf(brd->PrintName, MAXTTYNAMELEN, "pr_dgnc_%d_", brd->boardnum); - brd->PrintDriver.name = brd->PrintName; - brd->PrintDriver.name_base = 0; - brd->PrintDriver.major = brd->SerialDriver.major; - brd->PrintDriver.minor_start = 0x80; - brd->PrintDriver.num = brd->maxports; - brd->PrintDriver.type = TTY_DRIVER_TYPE_SERIAL; - brd->PrintDriver.subtype = SERIAL_TYPE_NORMAL; - brd->PrintDriver.init_termios = DgncDefaultTermios; - brd->PrintDriver.driver_name = DRVSTR; - brd->PrintDriver.flags = (TTY_DRIVER_REAL_RAW | + brd->print_driver.name = brd->PrintName; + brd->print_driver.name_base = 0; + brd->print_driver.major = brd->serial_driver.major; + brd->print_driver.minor_start = 0x80; + brd->print_driver.num = brd->maxports; + brd->print_driver.type = TTY_DRIVER_TYPE_SERIAL; + brd->print_driver.subtype = SERIAL_TYPE_NORMAL; + brd->print_driver.init_termios = DgncDefaultTermios; + brd->print_driver.driver_name = DRVSTR; + brd->print_driver.flags = (TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_HARDWARE_BREAK); @@ -255,27 +255,27 @@ int dgnc_tty_register(struct dgnc_board *brd) * tty_struct's and termios's. Must be separated from * the Serial Driver so we don't get confused */ - brd->PrintDriver.ttys = kcalloc(brd->maxports, - sizeof(*brd->PrintDriver.ttys), + brd->print_driver.ttys = kcalloc(brd->maxports, + sizeof(*brd->print_driver.ttys), GFP_KERNEL); - if (!brd->PrintDriver.ttys) + if (!brd->print_driver.ttys) return -ENOMEM; - kref_init(&brd->PrintDriver.kref); - brd->PrintDriver.termios = kcalloc(brd->maxports, - sizeof(*brd->PrintDriver.termios), + kref_init(&brd->print_driver.kref); + brd->print_driver.termios = kcalloc(brd->maxports, + sizeof(*brd->print_driver.termios), GFP_KERNEL); - if (!brd->PrintDriver.termios) + if (!brd->print_driver.termios) return -ENOMEM; /* * Entry points for driver. Called by the kernel from * tty_io.c and n_tty.c. */ - tty_set_operations(&brd->PrintDriver, &dgnc_tty_ops); + tty_set_operations(&brd->print_driver, &dgnc_tty_ops); if (!brd->dgnc_Major_TransparentPrint_Registered) { /* Register Transparent Print devices */ - rc = tty_register_driver(&brd->PrintDriver); + rc = tty_register_driver(&brd->print_driver); if (rc < 0) { dev_dbg(&brd->pdev->dev, "Can't register Transparent Print device(%d)\n", @@ -285,9 +285,9 @@ int dgnc_tty_register(struct dgnc_board *brd) brd->dgnc_Major_TransparentPrint_Registered = true; } - dgnc_BoardsByMajor[brd->SerialDriver.major] = brd; - brd->dgnc_Serial_Major = brd->SerialDriver.major; - brd->dgnc_TransparentPrint_Major = brd->PrintDriver.major; + dgnc_BoardsByMajor[brd->serial_driver.major] = brd; + brd->dgnc_Serial_Major = brd->serial_driver.major; + brd->dgnc_TransparentPrint_Major = brd->print_driver.major; return rc; } @@ -364,12 +364,12 @@ int dgnc_tty_init(struct dgnc_board *brd) { struct device *classp; - classp = tty_register_device(&brd->SerialDriver, i, + classp = tty_register_device(&brd->serial_driver, i, &ch->ch_bd->pdev->dev); ch->ch_tun.un_sysfs = classp; dgnc_create_tty_sysfs(&ch->ch_tun, classp); - classp = tty_register_device(&brd->PrintDriver, i, + classp = tty_register_device(&brd->print_driver, i, &ch->ch_bd->pdev->dev); ch->ch_pun.un_sysfs = classp; dgnc_create_tty_sysfs(&ch->ch_pun, classp); @@ -408,39 +408,39 @@ void dgnc_tty_uninit(struct dgnc_board *brd) int i = 0; if (brd->dgnc_Major_Serial_Registered) { - dgnc_BoardsByMajor[brd->SerialDriver.major] = NULL; + dgnc_BoardsByMajor[brd->serial_driver.major] = NULL; brd->dgnc_Serial_Major = 0; for (i = 0; i < brd->nasync; i++) { if (brd->channels[i]) dgnc_remove_tty_sysfs(brd->channels[i]-> ch_tun.un_sysfs); - tty_unregister_device(&brd->SerialDriver, i); + tty_unregister_device(&brd->serial_driver, i); } - tty_unregister_driver(&brd->SerialDriver); + tty_unregister_driver(&brd->serial_driver); brd->dgnc_Major_Serial_Registered = false; } if (brd->dgnc_Major_TransparentPrint_Registered) { - dgnc_BoardsByMajor[brd->PrintDriver.major] = NULL; + dgnc_BoardsByMajor[brd->print_driver.major] = NULL; brd->dgnc_TransparentPrint_Major = 0; for (i = 0; i < brd->nasync; i++) { if (brd->channels[i]) dgnc_remove_tty_sysfs(brd->channels[i]-> ch_pun.un_sysfs); - tty_unregister_device(&brd->PrintDriver, i); + tty_unregister_device(&brd->print_driver, i); } - tty_unregister_driver(&brd->PrintDriver); + tty_unregister_driver(&brd->print_driver); brd->dgnc_Major_TransparentPrint_Registered = false; } - kfree(brd->SerialDriver.ttys); - brd->SerialDriver.ttys = NULL; - kfree(brd->SerialDriver.termios); - brd->SerialDriver.termios = NULL; - kfree(brd->PrintDriver.ttys); - brd->PrintDriver.ttys = NULL; - kfree(brd->PrintDriver.termios); - brd->PrintDriver.termios = NULL; + kfree(brd->serial_driver.ttys); + brd->serial_driver.ttys = NULL; + kfree(brd->serial_driver.termios); + brd->serial_driver.termios = NULL; + kfree(brd->print_driver.ttys); + brd->print_driver.ttys = NULL; + kfree(brd->print_driver.termios); + brd->print_driver.termios = NULL; } /* -- cgit v0.10.2 From add0f9fefe481cfe719fc8302764e3613de9a054 Mon Sep 17 00:00:00 2001 From: Anchal Jain Date: Tue, 22 Mar 2016 18:01:42 +0530 Subject: staging: wilc1000: Remove camel case in variable names. Remove a problem detect by checkpatch.pl CHECK: Avoid CamelCase: Signed-off-by: Anchal Jain Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_mon.c b/drivers/staging/wilc1000/linux_mon.c index 6503316..242f82f 100644 --- a/drivers/staging/wilc1000/linux_mon.c +++ b/drivers/staging/wilc1000/linux_mon.c @@ -24,7 +24,7 @@ struct wilc_wfi_radiotap_cb_hdr { static struct net_device *wilc_wfi_mon; /* global monitor netdev */ -static u8 srcAdd[6]; +static u8 srcadd[6]; static u8 bssid[6]; static u8 broadcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; /** @@ -228,11 +228,11 @@ static netdev_tx_t WILC_WFI_mon_xmit(struct sk_buff *skb, skb->dev = mon_priv->real_ndev; /* Identify if Ethernet or MAC header (data or mgmt) */ - memcpy(srcAdd, &skb->data[10], 6); + memcpy(srcadd, &skb->data[10], 6); memcpy(bssid, &skb->data[16], 6); /* if source address and bssid fields are equal>>Mac header */ /*send it to mgmt frames handler */ - if (!(memcmp(srcAdd, bssid, 6))) { + if (!(memcmp(srcadd, bssid, 6))) { ret = mon_mgmt_tx(mon_priv->real_ndev, skb->data, skb->len); if (ret) netdev_err(dev, "fail to mgmt tx\n"); -- cgit v0.10.2 From 06884afcf2ab18d314d94456fbf1ac3c860e99bb Mon Sep 17 00:00:00 2001 From: Parth Sane Date: Tue, 22 Mar 2016 18:25:37 +0530 Subject: staging: vt6656: Fixed multiple logical comparisions warnings Using comparison to false and true is error prone. Fixed multiple warnings as per checkpatch guidelines. Signed-off-by: Parth Sane Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c index 4846a89..95faaeb 100644 --- a/drivers/staging/vt6656/wcmd.c +++ b/drivers/staging/vt6656/wcmd.c @@ -97,7 +97,7 @@ void vnt_run_command(struct work_struct *work) if (test_bit(DEVICE_FLAGS_DISCONNECTED, &priv->flags)) return; - if (priv->cmd_running != true) + if (!priv->cmd_running) return; switch (priv->command_state) { @@ -143,13 +143,13 @@ void vnt_run_command(struct work_struct *work) if (priv->rx_antenna_sel == 0) { priv->rx_antenna_sel = 1; - if (priv->tx_rx_ant_inv == true) + if (priv->tx_rx_ant_inv) vnt_set_antenna_mode(priv, ANT_RXA); else vnt_set_antenna_mode(priv, ANT_RXB); } else { priv->rx_antenna_sel = 0; - if (priv->tx_rx_ant_inv == true) + if (priv->tx_rx_ant_inv) vnt_set_antenna_mode(priv, ANT_RXB); else vnt_set_antenna_mode(priv, ANT_RXA); @@ -174,7 +174,7 @@ int vnt_schedule_command(struct vnt_private *priv, enum vnt_cmd command) ADD_ONE_WITH_WRAP_AROUND(priv->cmd_enqueue_idx, CMD_Q_SIZE); priv->free_cmd_queue--; - if (priv->cmd_running == false) + if (!priv->cmd_running) vnt_cmd_complete(priv); return true; -- cgit v0.10.2 From 4d97b691475060ea6e1345ea7a7c2cba4658a631 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Tue, 22 Mar 2016 20:29:13 +0530 Subject: staging: rtl8712: mlme_linux: Clean up tests if NULL returned on failure Some functions like kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/mlme_linux.c b/drivers/staging/rtl8712/mlme_linux.c index e4e4bde..af7c4a4 100644 --- a/drivers/staging/rtl8712/mlme_linux.c +++ b/drivers/staging/rtl8712/mlme_linux.c @@ -153,7 +153,7 @@ void r8712_report_sec_ie(struct _adapter *adapter, u8 authmode, u8 *sec_ie) buff = NULL; if (authmode == _WPA_IE_ID_) { buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC); - if (buff == NULL) + if (!buff) return; p = buff; p += sprintf(p, "ASSOCINFO(ReqIEs="); -- cgit v0.10.2 From 12f037ece36267c7e7c6e0e65bc1abdd4019fb5d Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Tue, 22 Mar 2016 20:28:28 +0530 Subject: staging: rtl8188eu: rtw_cmd: Clean up tests if NULL returned on failure Some functions like kmalloc/kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/core/rtw_cmd.c b/drivers/staging/rtl8188eu/core/rtw_cmd.c index f08d052..7748523 100644 --- a/drivers/staging/rtl8188eu/core/rtw_cmd.c +++ b/drivers/staging/rtl8188eu/core/rtw_cmd.c @@ -258,11 +258,11 @@ u8 rtw_sitesurvey_cmd(struct adapter *padapter, struct ndis_802_11_ssid *ssid, rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_SCAN, 1); ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) return _FAIL; psurveyPara = kzalloc(sizeof(struct sitesurvey_parm), GFP_ATOMIC); - if (psurveyPara == NULL) { + if (!psurveyPara) { kfree(ph2c); return _FAIL; } @@ -345,7 +345,7 @@ u8 rtw_createbss_cmd(struct adapter *padapter) RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_, (" createbss for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid)); pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (pcmd == NULL) { + if (!pcmd) { res = _FAIL; goto exit; } @@ -516,7 +516,7 @@ u8 rtw_disassoc_cmd(struct adapter *padapter, u32 deauth_timeout_ms, bool enqueu /* prepare cmd parameter */ param = kzalloc(sizeof(*param), GFP_KERNEL); - if (param == NULL) { + if (!param) { res = _FAIL; goto exit; } @@ -525,7 +525,7 @@ u8 rtw_disassoc_cmd(struct adapter *padapter, u32 deauth_timeout_ms, bool enqueu if (enqueue) { /* need enqueue, prepare cmd_obj and enqueue */ cmdobj = kzalloc(sizeof(*cmdobj), GFP_KERNEL); - if (cmdobj == NULL) { + if (!cmdobj) { res = _FAIL; kfree(param); goto exit; @@ -624,20 +624,20 @@ u8 rtw_clearstakey_cmd(struct adapter *padapter, u8 *psta, u8 entry, u8 enqueue) clear_cam_entry(padapter, entry); } else { ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC); - if (ph2c == NULL) { + if (!ph2c) { res = _FAIL; goto exit; } psetstakey_para = kzalloc(sizeof(struct set_stakey_parm), GFP_ATOMIC); - if (psetstakey_para == NULL) { + if (!psetstakey_para) { kfree(ph2c); res = _FAIL; goto exit; } psetstakey_rsp = kzalloc(sizeof(struct set_stakey_rsp), GFP_ATOMIC); - if (psetstakey_rsp == NULL) { + if (!psetstakey_rsp) { kfree(ph2c); kfree(psetstakey_para); res = _FAIL; @@ -671,13 +671,13 @@ u8 rtw_addbareq_cmd(struct adapter *padapter, u8 tid, u8 *addr) ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (ph2c == NULL) { + if (!ph2c) { res = _FAIL; goto exit; } paddbareq_parm = kzalloc(sizeof(struct addBaReq_parm), GFP_KERNEL); - if (paddbareq_parm == NULL) { + if (!paddbareq_parm) { kfree(ph2c); res = _FAIL; goto exit; @@ -708,13 +708,13 @@ u8 rtw_dynamic_chk_wk_cmd(struct adapter *padapter) ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC); - if (ph2c == NULL) { + if (!ph2c) { res = _FAIL; goto exit; } pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_ATOMIC); - if (pdrvextra_cmd_parm == NULL) { + if (!pdrvextra_cmd_parm) { kfree(ph2c); res = _FAIL; goto exit; @@ -752,7 +752,7 @@ u8 rtw_set_chplan_cmd(struct adapter *padapter, u8 chplan, u8 enqueue) /* prepare cmd parameter */ setChannelPlan_param = kzalloc(sizeof(struct SetChannelPlan_param), GFP_KERNEL); - if (setChannelPlan_param == NULL) { + if (!setChannelPlan_param) { res = _FAIL; goto exit; } @@ -761,7 +761,7 @@ u8 rtw_set_chplan_cmd(struct adapter *padapter, u8 chplan, u8 enqueue) if (enqueue) { /* need enqueue, prepare cmd_obj and enqueue */ pcmdobj = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (pcmdobj == NULL) { + if (!pcmdobj) { kfree(setChannelPlan_param); res = _FAIL; goto exit; @@ -920,13 +920,13 @@ u8 rtw_lps_ctrl_wk_cmd(struct adapter *padapter, u8 lps_ctrl_type, u8 enqueue) if (enqueue) { ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC); - if (ph2c == NULL) { + if (!ph2c) { res = _FAIL; goto exit; } pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_ATOMIC); - if (pdrvextra_cmd_parm == NULL) { + if (!pdrvextra_cmd_parm) { kfree(ph2c); res = _FAIL; goto exit; @@ -963,13 +963,13 @@ u8 rtw_rpt_timer_cfg_cmd(struct adapter *padapter, u16 min_time) u8 res = _SUCCESS; ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC); - if (ph2c == NULL) { + if (!ph2c) { res = _FAIL; goto exit; } pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_ATOMIC); - if (pdrvextra_cmd_parm == NULL) { + if (!pdrvextra_cmd_parm) { kfree(ph2c); res = _FAIL; goto exit; @@ -1005,13 +1005,13 @@ u8 rtw_antenna_select_cmd(struct adapter *padapter, u8 antenna, u8 enqueue) if (enqueue) { ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (ph2c == NULL) { + if (!ph2c) { res = _FAIL; goto exit; } pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_KERNEL); - if (pdrvextra_cmd_parm == NULL) { + if (!pdrvextra_cmd_parm) { kfree(ph2c); res = _FAIL; goto exit; @@ -1103,13 +1103,13 @@ u8 rtw_chk_hi_queue_cmd(struct adapter *padapter) u8 res = _SUCCESS; ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (ph2c == NULL) { + if (!ph2c) { res = _FAIL; goto exit; } pdrvextra_cmd_parm = kzalloc(sizeof(struct drvextra_cmd_parm), GFP_KERNEL); - if (pdrvextra_cmd_parm == NULL) { + if (!pdrvextra_cmd_parm) { kfree(ph2c); res = _FAIL; goto exit; -- cgit v0.10.2 From a703f4726583318b24f76bb6bc61d46a5319f248 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Tue, 22 Mar 2016 20:27:39 +0530 Subject: staging: rtl8188eu: rtw_mlme_ext: Clean up tests if NULL returned on failure Some functions like kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c index 86108d4..439c035 100644 --- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c +++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c @@ -4289,12 +4289,12 @@ void report_survey_event(struct adapter *padapter, pcmd_obj = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC); - if (pcmd_obj == NULL) + if (!pcmd_obj) return; cmdsz = sizeof(struct survey_event) + sizeof(struct C2HEvent_Header); pevtcmd = kzalloc(cmdsz, GFP_ATOMIC); - if (pevtcmd == NULL) { + if (!pevtcmd) { kfree(pcmd_obj); return; } @@ -4341,12 +4341,12 @@ void report_surveydone_event(struct adapter *padapter) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; pcmd_obj = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (pcmd_obj == NULL) + if (!pcmd_obj) return; cmdsz = sizeof(struct surveydone_event) + sizeof(struct C2HEvent_Header); pevtcmd = kzalloc(cmdsz, GFP_KERNEL); - if (pevtcmd == NULL) { + if (!pevtcmd) { kfree(pcmd_obj); return; } @@ -4387,12 +4387,12 @@ void report_join_res(struct adapter *padapter, int res) struct cmd_priv *pcmdpriv = &padapter->cmdpriv; pcmd_obj = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC); - if (pcmd_obj == NULL) + if (!pcmd_obj) return; cmdsz = sizeof(struct joinbss_event) + sizeof(struct C2HEvent_Header); pevtcmd = kzalloc(cmdsz, GFP_ATOMIC); - if (pevtcmd == NULL) { + if (!pevtcmd) { kfree(pcmd_obj); return; } @@ -4440,12 +4440,12 @@ void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr, unsi struct cmd_priv *pcmdpriv = &padapter->cmdpriv; pcmd_obj = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (pcmd_obj == NULL) + if (!pcmd_obj) return; cmdsz = sizeof(struct stadel_event) + sizeof(struct C2HEvent_Header); pevtcmd = kzalloc(cmdsz, GFP_KERNEL); - if (pevtcmd == NULL) { + if (!pevtcmd) { kfree(pcmd_obj); return; } @@ -4495,12 +4495,12 @@ void report_add_sta_event(struct adapter *padapter, unsigned char *MacAddr, int struct cmd_priv *pcmdpriv = &padapter->cmdpriv; pcmd_obj = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (pcmd_obj == NULL) + if (!pcmd_obj) return; cmdsz = sizeof(struct stassoc_event) + sizeof(struct C2HEvent_Header); pevtcmd = kzalloc(cmdsz, GFP_KERNEL); - if (pevtcmd == NULL) { + if (!pevtcmd) { kfree(pcmd_obj); return; } @@ -4911,11 +4911,11 @@ void survey_timer_hdl(unsigned long data) } ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC); - if (ph2c == NULL) + if (!ph2c) goto exit_survey_timer_hdl; psurveyPara = kzalloc(sizeof(struct sitesurvey_parm), GFP_ATOMIC); - if (psurveyPara == NULL) { + if (!psurveyPara) { kfree(ph2c); goto exit_survey_timer_hdl; } @@ -5479,7 +5479,7 @@ u8 set_tx_beacon_cmd(struct adapter *padapter) ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (ph2c == NULL) { + if (!ph2c) { res = _FAIL; goto exit; } -- cgit v0.10.2 From 6e9aeda3fa6fb1462cfc3d188ecfa734b1af6b21 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Tue, 22 Mar 2016 20:26:33 +0530 Subject: staging: rtl8188eu: core: rtw_mlme: Clean up tests if NULL returned on failure Some functions like kmalloc/kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme.c b/drivers/staging/rtl8188eu/core/rtw_mlme.c index 472cd3f..1456499 100644 --- a/drivers/staging/rtl8188eu/core/rtw_mlme.c +++ b/drivers/staging/rtl8188eu/core/rtw_mlme.c @@ -1579,13 +1579,13 @@ int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv) int res = _SUCCESS; pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (pcmd == NULL) { + if (!pcmd) { res = _FAIL; /* try again */ goto exit; } psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_KERNEL); - if (psetauthparm == NULL) { + if (!psetauthparm) { kfree(pcmd); res = _FAIL; goto exit; @@ -1616,11 +1616,11 @@ int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, in int res = _SUCCESS; pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (pcmd == NULL) + if (!pcmd) return _FAIL; /* try again */ psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL); - if (psetkeyparm == NULL) { + if (!psetkeyparm) { res = _FAIL; goto err_free_cmd; } -- cgit v0.10.2 From 574502caed4c11c7bbb6b4532a8bb544f626f2dc Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Tue, 22 Mar 2016 20:25:55 +0530 Subject: staging: rtl8188eu: os_dep: usb_intf: Clean up tests if NULL returned on failure Some functions like kmalloc/kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c index 8fd608d..11d51a3 100644 --- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c +++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c @@ -60,7 +60,7 @@ static struct dvobj_priv *usb_dvobj_init(struct usb_interface *usb_intf) struct usb_device *pusbd; pdvobjpriv = kzalloc(sizeof(*pdvobjpriv), GFP_KERNEL); - if (pdvobjpriv == NULL) + if (!pdvobjpriv) return NULL; pdvobjpriv->pusbintf = usb_intf; -- cgit v0.10.2 From 4ada295da12e9d0647801577cef37cfc48d41b38 Mon Sep 17 00:00:00 2001 From: Bhaktipriya Shridhar Date: Tue, 22 Mar 2016 20:19:49 +0530 Subject: staging: rtl8188eu: os_dep: ioctl_linux: Clean up tests if NULL returned on failure Some functions like kmalloc/kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by: Bhaktipriya Shridhar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c index eeb1694..5672f01 100644 --- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c +++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c @@ -2115,13 +2115,13 @@ static u8 set_pairwise_key(struct adapter *padapter, struct sta_info *psta) u8 res = _SUCCESS; ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (ph2c == NULL) { + if (!ph2c) { res = _FAIL; goto exit; } psetstakey_para = kzalloc(sizeof(struct set_stakey_parm), GFP_KERNEL); - if (psetstakey_para == NULL) { + if (!psetstakey_para) { kfree(ph2c); res = _FAIL; goto exit; @@ -2153,12 +2153,12 @@ static int set_group_key(struct adapter *padapter, u8 *key, u8 alg, int keyid) DBG_88E("%s\n", __func__); pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); - if (pcmd == NULL) { + if (!pcmd) { res = _FAIL; goto exit; } psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL); - if (psetkeyparm == NULL) { + if (!psetkeyparm) { kfree(pcmd); res = _FAIL; goto exit; -- cgit v0.10.2 From f90272f432f7515044d9e13a6fa2c8bf1ac14838 Mon Sep 17 00:00:00 2001 From: Amitoj Kaur Chawla Date: Tue, 22 Mar 2016 22:22:41 +0530 Subject: staging: media: omap1: Replace clk_get with devm_clk_get devm_clk_get allocated resources get released when a driver detaches. Replace clk_get with devm_clk_get and remove corresponding data releasing function clk_put from probe and remove functions of a platform device. Also remove an unnecessary label. This change was made with the help of the following Coccinelle semantic patch: @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e; @@ probefn(struct platform_device *pdev, ...) { ... e = - clk_get + devm_clk_get (...); ... ?- clk_put(...); ... } @remove depends on prb@ identifier platform.removefn; @@ removefn(...) { ... ?- clk_put(...); ... } Signed-off-by: Amitoj Kaur Chawla Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/media/omap1/omap1_camera.c b/drivers/staging/media/omap1/omap1_camera.c index bd721e3..bd00180 100644 --- a/drivers/staging/media/omap1/omap1_camera.c +++ b/drivers/staging/media/omap1/omap1_camera.c @@ -1576,17 +1576,14 @@ static int omap1_cam_probe(struct platform_device *pdev) goto exit; } - clk = clk_get(&pdev->dev, "armper_ck"); - if (IS_ERR(clk)) { - err = PTR_ERR(clk); - goto exit; - } + clk = devm_clk_get(&pdev->dev, "armper_ck"); + if (IS_ERR(clk)) + return PTR_ERR(clk); pcdev = kzalloc(sizeof(*pcdev) + resource_size(res), GFP_KERNEL); if (!pcdev) { dev_err(&pdev->dev, "Could not allocate pcdev\n"); - err = -ENOMEM; - goto exit_put_clk; + return -ENOMEM; } pcdev->res = res; @@ -1685,8 +1682,6 @@ exit_release: release_mem_region(res->start, resource_size(res)); exit_kfree: kfree(pcdev); -exit_put_clk: - clk_put(clk); exit: return err; } @@ -1709,8 +1704,6 @@ static int omap1_cam_remove(struct platform_device *pdev) res = pcdev->res; release_mem_region(res->start, resource_size(res)); - clk_put(pcdev->clk); - kfree(pcdev); dev_info(&pdev->dev, "OMAP1 Camera Interface driver unloaded\n"); -- cgit v0.10.2 From ba99a0f19ae04820104c1cba11027ec69495879c Mon Sep 17 00:00:00 2001 From: Amitoj Kaur Chawla Date: Tue, 22 Mar 2016 22:22:48 +0530 Subject: staging: media: omap1: Replace kzalloc with devm_kzalloc Replace kzalloc with devm_kzalloc and consequently remove kfrees in probe and remove functions of a platform device. As a result of this change, remove unnecessary out of memory message and an unnecessary label. Signed-off-by: Amitoj Kaur Chawla Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/media/omap1/omap1_camera.c b/drivers/staging/media/omap1/omap1_camera.c index bd00180..8cc4a0a 100644 --- a/drivers/staging/media/omap1/omap1_camera.c +++ b/drivers/staging/media/omap1/omap1_camera.c @@ -1580,11 +1580,10 @@ static int omap1_cam_probe(struct platform_device *pdev) if (IS_ERR(clk)) return PTR_ERR(clk); - pcdev = kzalloc(sizeof(*pcdev) + resource_size(res), GFP_KERNEL); - if (!pcdev) { - dev_err(&pdev->dev, "Could not allocate pcdev\n"); + pcdev = devm_kzalloc(&pdev->dev, sizeof(*pcdev) + resource_size(res), + GFP_KERNEL); + if (!pcdev) return -ENOMEM; - } pcdev->res = res; pcdev->clk = clk; @@ -1620,10 +1619,8 @@ static int omap1_cam_probe(struct platform_device *pdev) /* * Request the region. */ - if (!request_mem_region(res->start, resource_size(res), DRIVER_NAME)) { - err = -EBUSY; - goto exit_kfree; - } + if (!request_mem_region(res->start, resource_size(res), DRIVER_NAME)) + return -EBUSY; base = ioremap(res->start, resource_size(res)); if (!base) { @@ -1680,8 +1677,6 @@ exit_iounmap: iounmap(base); exit_release: release_mem_region(res->start, resource_size(res)); -exit_kfree: - kfree(pcdev); exit: return err; } @@ -1704,8 +1699,6 @@ static int omap1_cam_remove(struct platform_device *pdev) res = pcdev->res; release_mem_region(res->start, resource_size(res)); - kfree(pcdev); - dev_info(&pdev->dev, "OMAP1 Camera Interface driver unloaded\n"); return 0; -- cgit v0.10.2 From 76e543382bd4f488f2a1ca726b7494e6c5f4cc89 Mon Sep 17 00:00:00 2001 From: Amitoj Kaur Chawla Date: Tue, 22 Mar 2016 22:22:56 +0530 Subject: staging: media: omap1: Switch to devm_ioremap_resource Replace calls to request_mem_region and ioremap with a direct call to devm_ioremap_resource instead and modify error handling. Move the call to platform_get_resource adjacent to the call to devm_ioremap_resource to make the connection between them more clear. Also remove unnecessary labels, variable initialisations and release_mem_region iounmap from probe and remove functions. Signed-off-by: Amitoj Kaur Chawla Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/media/omap1/omap1_camera.c b/drivers/staging/media/omap1/omap1_camera.c index 8cc4a0a..c4450b4 100644 --- a/drivers/staging/media/omap1/omap1_camera.c +++ b/drivers/staging/media/omap1/omap1_camera.c @@ -1569,9 +1569,8 @@ static int omap1_cam_probe(struct platform_device *pdev) unsigned int irq; int err = 0; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_irq(pdev, 0); - if (!res || (int)irq <= 0) { + if ((int)irq <= 0) { err = -ENODEV; goto exit; } @@ -1585,7 +1584,6 @@ static int omap1_cam_probe(struct platform_device *pdev) if (!pcdev) return -ENOMEM; - pcdev->res = res; pcdev->clk = clk; pcdev->pdata = pdev->dev.platform_data; @@ -1616,17 +1614,11 @@ static int omap1_cam_probe(struct platform_device *pdev) INIT_LIST_HEAD(&pcdev->capture); spin_lock_init(&pcdev->lock); - /* - * Request the region. - */ - if (!request_mem_region(res->start, resource_size(res), DRIVER_NAME)) - return -EBUSY; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); - base = ioremap(res->start, resource_size(res)); - if (!base) { - err = -ENOMEM; - goto exit_release; - } pcdev->irq = irq; pcdev->base = base; @@ -1636,8 +1628,7 @@ static int omap1_cam_probe(struct platform_device *pdev) dma_isr, (void *)pcdev, &pcdev->dma_ch); if (err < 0) { dev_err(&pdev->dev, "Can't request DMA for OMAP1 Camera\n"); - err = -EBUSY; - goto exit_iounmap; + return -EBUSY; } dev_dbg(&pdev->dev, "got DMA channel %d\n", pcdev->dma_ch); @@ -1673,10 +1664,6 @@ exit_free_irq: free_irq(pcdev->irq, pcdev); exit_free_dma: omap_free_dma(pcdev->dma_ch); -exit_iounmap: - iounmap(base); -exit_release: - release_mem_region(res->start, resource_size(res)); exit: return err; } @@ -1686,7 +1673,6 @@ static int omap1_cam_remove(struct platform_device *pdev) struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev); struct omap1_cam_dev *pcdev = container_of(soc_host, struct omap1_cam_dev, soc_host); - struct resource *res; free_irq(pcdev->irq, pcdev); @@ -1694,11 +1680,6 @@ static int omap1_cam_remove(struct platform_device *pdev) soc_camera_host_unregister(soc_host); - iounmap(pcdev->base); - - res = pcdev->res; - release_mem_region(res->start, resource_size(res)); - dev_info(&pdev->dev, "OMAP1 Camera Interface driver unloaded\n"); return 0; -- cgit v0.10.2 From 62d727c4a99a97e5cc73294d86ccf4b7250bfc3b Mon Sep 17 00:00:00 2001 From: Amitoj Kaur Chawla Date: Tue, 22 Mar 2016 22:23:02 +0530 Subject: staging: media: omap1: Replace request_irq with devm_request_irq Replace request_irq with devm_request_irq to get the interrupt for device which is automatically freed on exit. Remove corresponding free_irq from probe and remove functions of a platform device. Also, remove an unnecessary label. Signed-off-by: Amitoj Kaur Chawla Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/media/omap1/omap1_camera.c b/drivers/staging/media/omap1/omap1_camera.c index c4450b4..54b8dd2 100644 --- a/drivers/staging/media/omap1/omap1_camera.c +++ b/drivers/staging/media/omap1/omap1_camera.c @@ -1640,7 +1640,8 @@ static int omap1_cam_probe(struct platform_device *pdev) /* setup DMA autoinitialization */ omap_dma_link_lch(pcdev->dma_ch, pcdev->dma_ch); - err = request_irq(pcdev->irq, cam_isr, 0, DRIVER_NAME, pcdev); + err = devm_request_irq(&pdev->dev, pcdev->irq, cam_isr, 0, DRIVER_NAME, + pcdev); if (err) { dev_err(&pdev->dev, "Camera interrupt register failed\n"); goto exit_free_dma; @@ -1654,14 +1655,12 @@ static int omap1_cam_probe(struct platform_device *pdev) err = soc_camera_host_register(&pcdev->soc_host); if (err) - goto exit_free_irq; + return err; dev_info(&pdev->dev, "OMAP1 Camera Interface driver loaded\n"); return 0; -exit_free_irq: - free_irq(pcdev->irq, pcdev); exit_free_dma: omap_free_dma(pcdev->dma_ch); exit: @@ -1674,8 +1673,6 @@ static int omap1_cam_remove(struct platform_device *pdev) struct omap1_cam_dev *pcdev = container_of(soc_host, struct omap1_cam_dev, soc_host); - free_irq(pcdev->irq, pcdev); - omap_free_dma(pcdev->dma_ch); soc_camera_host_unregister(soc_host); -- cgit v0.10.2 From 7e221b6088eda47589480bcb29f4aaba44da49c7 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Thu, 24 Mar 2016 11:24:02 -0400 Subject: staging: lustre: lnet: revert commit 4671a0266 Commit 4671a0266 change the parameter of the second parameter of cfs_precpt_alloc() from a sizeof type to sizeof type *pointer. This was incorrect in this case and it caused a crash when the LNet layer was brought up in my testing. The reason is cfs_precpt_alloc() creates an array of items where the arrays size is equal to the number of CPTs that exist. Changing to type *pointer only had cfs_precpt_alloc() create an array of pointers instead of an array of actual data structures. This patch reverse this change and adds comments to explain what cfs_precpt_alloc() is actually doing to avoid potential issues like this again. Changelog: v1) Simple revert of the original patch v2) Added in comments to explain why cfs_precpt_alloc() has the arguments it uses. Signed-off-by: James Simmons Cc: Sandhya Bankar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 89f93909..e89c2a1 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -1965,10 +1965,13 @@ static int kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts) /* * premapping can fail if ibd_nmr > 1, so we always create * FMR pool and map-on-demand if premapping failed + * + * cfs_precpt_alloc is creating an array of struct kib_fmr_poolset + * The number of struct kib_fmr_poolsets create is equal to the + * number of CPTs that exist, i.e net->ibn_fmr_ps[cpt]. */ - net->ibn_fmr_ps = cfs_percpt_alloc(lnet_cpt_table(), - sizeof(*net->ibn_fmr_ps)); + sizeof(kib_fmr_poolset_t)); if (!net->ibn_fmr_ps) { CERROR("Failed to allocate FMR pool array\n"); rc = -ENOMEM; @@ -1991,8 +1994,13 @@ static int kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts) LASSERT(i == ncpts); create_tx_pool: + /* + * cfs_precpt_alloc is creating an array of struct kib_tx_poolset + * The number of struct kib_tx_poolsets create is equal to the + * number of CPTs that exist, i.e net->ibn_tx_ps[cpt]. + */ net->ibn_tx_ps = cfs_percpt_alloc(lnet_cpt_table(), - sizeof(*net->ibn_tx_ps)); + sizeof(kib_tx_poolset_t)); if (!net->ibn_tx_ps) { CERROR("Failed to allocate tx pool array\n"); rc = -ENOMEM; -- cgit v0.10.2 From ae664e824e3e4a85dbe857815d269f209d998e36 Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:48 -0400 Subject: staging: lustre: libcfs: replace LNET_MAX_IOCTL_BUF_LEN with something bigger The size of LNET_MAX_IOCTL_BUF_LEN restricts the size of libcfs ioctl to the maximum needs of the LNet layer. Since libcfs also handles things like debugging we might need to let user land pass more data to or from the kernel than what is possible Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index 5ca99bd..c71d125 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -49,6 +49,9 @@ struct libcfs_ioctl_hdr { __u32 ioc_version; }; +/** max size to copy from userspace */ +#define LIBCFS_IOC_DATA_MAX (128 * 1024) + struct libcfs_ioctl_data { struct libcfs_ioctl_hdr ioc_hdr; diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index cdc640b..f9f9d59 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -54,9 +54,6 @@ # define DEBUG_SUBSYSTEM S_LNET -#define LNET_MAX_IOCTL_BUF_LEN (sizeof(struct lnet_ioctl_net_config) + \ - sizeof(struct lnet_ioctl_config_data)) - #include "../../include/linux/libcfs/libcfs.h" #include @@ -186,7 +183,7 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, * do a check here to restrict the size of the memory * to allocate to guard against DoS attacks. */ - if (buf_len > LNET_MAX_IOCTL_BUF_LEN) { + if (buf_len > LIBCFS_IOC_DATA_MAX) { CERROR("LNET: user buffer exceeds kernel buffer\n"); return -EINVAL; } -- cgit v0.10.2 From 74bfc129826a0e2e44821a5aea6ecda43fff5f87 Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:49 -0400 Subject: staging: lustre: libcfs: use break in switch options for libcfs_ioctl_handle Instead of just returning for each switch condition use a break. Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index f9f9d59..3fe2810 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -116,7 +116,7 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, void __user *arg, struct libcfs_ioctl_hdr *hdr) { struct libcfs_ioctl_data *data = NULL; - int err = -EINVAL; + int err = 0; /* * The libcfs_ioctl_data_adjust() function performs adjustment @@ -134,7 +134,7 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, switch (cmd) { case IOC_LIBCFS_CLEAR_DEBUG: libcfs_debug_clear_buffer(); - return 0; + break; /* * case IOC_LIBCFS_PANIC: * Handled in arch/cfs_module.c @@ -144,7 +144,7 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0') return -EINVAL; libcfs_debug_mark_buffer(data->ioc_inlbuf1); - return 0; + break; default: { struct libcfs_ioctl_handler *hand; @@ -161,8 +161,7 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, } } up_read(&ioctl_list_sem); - break; - } + break; } } return err; -- cgit v0.10.2 From e4efb34a3fc335ea7c837a10f5c03fe446e176d0 Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:50 -0400 Subject: staging: lustre: libcfs: merge code from libcfs_ioctl into libcfs_ioctl_getdata This is apart of the cleanup of libcfs_ioctl* code. In this part some of the code in libcfs_ioctl is migrated into libcfs_ioctl_getdata_len() which is renamed libcfs_ioctl_getdata() Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index c71d125..9c1deae 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -225,8 +225,8 @@ static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data) int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand); int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand); -int libcfs_ioctl_getdata_len(const struct libcfs_ioctl_hdr __user *arg, - __u32 *buf_len); +int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, + const struct libcfs_ioctl_hdr __user *uparam); int libcfs_ioctl_popdata(void __user *arg, void *buf, int size); int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data); diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index ebc60ac..a326ac6 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -57,12 +57,13 @@ int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data) return 0; } -int libcfs_ioctl_getdata_len(const struct libcfs_ioctl_hdr __user *arg, - __u32 *len) +int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, + const struct libcfs_ioctl_hdr __user *uhdr) { struct libcfs_ioctl_hdr hdr; + int err = 0; - if (copy_from_user(&hdr, arg, sizeof(hdr))) + if (copy_from_user(&hdr, uhdr, sizeof(uhdr))) return -EFAULT; if (hdr.ioc_version != LIBCFS_IOCTL_VERSION && @@ -72,9 +73,21 @@ int libcfs_ioctl_getdata_len(const struct libcfs_ioctl_hdr __user *arg, return -EINVAL; } - *len = hdr.ioc_len; + if (hdr.ioc_len > LIBCFS_IOC_DATA_MAX) { + CERROR("libcfs ioctl: user buffer is too large %d/%d\n", + hdr.ioc_len, LIBCFS_IOC_DATA_MAX); + return -EINVAL; + } - return 0; + LIBCFS_ALLOC(*hdr_pp, hdr.ioc_len); + if (!*hdr_pp) + return -ENOMEM; + + if (copy_from_user(*hdr_pp, uhdr, hdr.ioc_len)) { + LIBCFS_FREE(*hdr_pp, hdr.ioc_len); + err = -EFAULT; + } + return err; } int libcfs_ioctl_popdata(void __user *arg, void *data, int size) diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 3fe2810..5a20e53 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -172,36 +172,14 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, { struct libcfs_ioctl_hdr *hdr; int err = 0; - __u32 buf_len; - err = libcfs_ioctl_getdata_len(arg, &buf_len); + /* 'cmd' and permissions get checked in our arch-specific caller */ + err = libcfs_ioctl_getdata(&hdr, arg); if (err) return err; - /* - * do a check here to restrict the size of the memory - * to allocate to guard against DoS attacks. - */ - if (buf_len > LIBCFS_IOC_DATA_MAX) { - CERROR("LNET: user buffer exceeds kernel buffer\n"); - return -EINVAL; - } - - LIBCFS_ALLOC_GFP(hdr, buf_len, GFP_KERNEL); - if (!hdr) - return -ENOMEM; - - /* 'cmd' and permissions get checked in our arch-specific caller */ - if (copy_from_user(hdr, arg, buf_len)) { - CERROR("LNET ioctl: data error\n"); - err = -EFAULT; - goto out; - } - err = libcfs_ioctl_handle(pfile, cmd, arg, hdr); - -out: - LIBCFS_FREE(hdr, buf_len); + LIBCFS_FREE(hdr, hdr->ioc_len); return err; } -- cgit v0.10.2 From db469aa868657ccf4944fb8a8bc13b54002b356e Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:51 -0400 Subject: staging: lustre: libcfs: merge libcfs_ioctl_handle into libcfs_ioctl This is apart of the cleanup of libcfs_ioctl* code. In this part we turn libcfs_ioctl_handle into libcfs_ioctl since libcfs_ioctl is now a skeleton function. Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 5a20e53..8beb954 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -112,11 +112,17 @@ int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand) } EXPORT_SYMBOL(libcfs_deregister_ioctl); -static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, - void __user *arg, struct libcfs_ioctl_hdr *hdr) +static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, + void __user *arg) { struct libcfs_ioctl_data *data = NULL; - int err = 0; + struct libcfs_ioctl_hdr *hdr; + int err; + + /* 'cmd' and permissions get checked in our arch-specific caller */ + err = libcfs_ioctl_getdata(&hdr, arg); + if (err) + return err; /* * The libcfs_ioctl_data_adjust() function performs adjustment @@ -128,7 +134,7 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, data = container_of(hdr, struct libcfs_ioctl_data, ioc_hdr); err = libcfs_ioctl_data_adjust(data); if (err) - return err; + goto out; } switch (cmd) { @@ -141,8 +147,10 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, */ case IOC_LIBCFS_MARK_DEBUG: if (!data->ioc_inlbuf1 || - data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0') - return -EINVAL; + data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0') { + err = -EINVAL; + goto out; + } libcfs_debug_mark_buffer(data->ioc_inlbuf1); break; @@ -163,22 +171,7 @@ static int libcfs_ioctl_handle(struct cfs_psdev_file *pfile, unsigned long cmd, up_read(&ioctl_list_sem); break; } } - - return err; -} - -static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, - void __user *arg) -{ - struct libcfs_ioctl_hdr *hdr; - int err = 0; - - /* 'cmd' and permissions get checked in our arch-specific caller */ - err = libcfs_ioctl_getdata(&hdr, arg); - if (err) - return err; - - err = libcfs_ioctl_handle(pfile, cmd, arg, hdr); +out: LIBCFS_FREE(hdr, hdr->ioc_len); return err; } -- cgit v0.10.2 From ea1bffa45b1c4c0f33590850aa1cad9bc298b816 Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:52 -0400 Subject: staging: lustre: libcfs: add debugging info for libcfs_ioctl Added some lustre debugging to track down potential future bugs. Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 8beb954..b7575af 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -121,8 +121,11 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, /* 'cmd' and permissions get checked in our arch-specific caller */ err = libcfs_ioctl_getdata(&hdr, arg); - if (err) + if (err) { + CDEBUG_LIMIT(D_ERROR, + "libcfs ioctl: data header error %d\n", err); return err; + } /* * The libcfs_ioctl_data_adjust() function performs adjustment @@ -137,6 +140,7 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, goto out; } + CDEBUG(D_IOCTL, "libcfs ioctl cmd %lu\n", cmd); switch (cmd) { case IOC_LIBCFS_CLEAR_DEBUG: libcfs_debug_clear_buffer(); -- cgit v0.10.2 From 0d674c10b04f2698c07953476393ead13980fa7f Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:53 -0400 Subject: staging: lustre: libcfs: move comment in libcfs_ioctl Move the comment about libcfs_ioctl_data_adjust to the section where libcfs_ioctl_data_adjust is actually called. Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index b7575af..4c3fe87 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -127,13 +127,13 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, return err; } - /* - * The libcfs_ioctl_data_adjust() function performs adjustment - * operations on the libcfs_ioctl_data structure to make - * it usable by the code. This doesn't need to be called - * for new data structures added. - */ if (hdr->ioc_version == LIBCFS_IOCTL_VERSION) { + /* + * The libcfs_ioctl_data_adjust() function performs adjustment + * operations on the libcfs_ioctl_data structure to make + * it usable by the code. This doesn't need to be called + * for new data structures added. + */ data = container_of(hdr, struct libcfs_ioctl_data, ioc_hdr); err = libcfs_ioctl_data_adjust(data); if (err) -- cgit v0.10.2 From 4e31dad14dfec5746bdaa593db0cf0d8a6736b1c Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:54 -0400 Subject: staging: lustre: libcfs: test if data is NULL Make sure data is not NULL otherwise we get an oops when using the IOC_LIBCFS_MARK_DEBUG ioctl. Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 4c3fe87..cce6ce3 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -150,7 +150,7 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, * Handled in arch/cfs_module.c */ case IOC_LIBCFS_MARK_DEBUG: - if (!data->ioc_inlbuf1 || + if (!data || !data->ioc_inlbuf1 || data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0') { err = -EINVAL; goto out; -- cgit v0.10.2 From 77f716360939767016e2ceab17f8234d0cabc61b Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:55 -0400 Subject: staging: lustre: libcfs: invert test condition for libcfs_ioctl Invert the test of error returned by the handle_ioctl pointer. This reduces the code by one indentation level. Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index cce6ce3..97fc905 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -165,12 +165,13 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, down_read(&ioctl_list_sem); list_for_each_entry(hand, &ioctl_list, item) { err = hand->handle_ioctl(cmd, hdr); - if (err != -EINVAL) { - if (err == 0) - err = libcfs_ioctl_popdata(arg, - hdr, hdr->ioc_len); - break; - } + if (err == -EINVAL) + continue; + + if (!err) + err = libcfs_ioctl_popdata(arg, hdr, + hdr->ioc_len); + break; } up_read(&ioctl_list_sem); break; } -- cgit v0.10.2 From 6d0aeaa36178382898a15836c8c6542d92527a8c Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:56 -0400 Subject: staging: lustre: libcfs: update error messages in linux-module.c The error message are for libcfs layer not LNet. Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index a326ac6..35e2fcf2 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -43,7 +43,7 @@ int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data) { if (libcfs_ioctl_is_invalid(data)) { - CERROR("LNET: ioctl not correctly formatted\n"); + CERROR("libcfs ioctl: parameter not correctly formatted\n"); return -EINVAL; } @@ -68,7 +68,7 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, if (hdr.ioc_version != LIBCFS_IOCTL_VERSION && hdr.ioc_version != LIBCFS_IOCTL_VERSION2) { - CERROR("LNET: version mismatch expected %#x, got %#x\n", + CERROR("libcfs ioctl: version mismatch expected %#x, got %#x\n", LIBCFS_IOCTL_VERSION, hdr.ioc_version); return -EINVAL; } -- cgit v0.10.2 From ed2f549dc0f687f5d454cb20754340e83e5b9c4f Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:57 -0400 Subject: staging: lustre: libcfs: test if userland data is to small Ensure that user land data is at least the smallest size. Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index 35e2fcf2..ae05895 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -73,6 +73,11 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, return -EINVAL; } + if (hdr.ioc_len < sizeof(struct libcfs_ioctl_data)) { + CERROR("libcfs ioctl: user buffer too small for ioctl\n"); + return -EINVAL; + } + if (hdr.ioc_len > LIBCFS_IOC_DATA_MAX) { CERROR("libcfs ioctl: user buffer is too large %d/%d\n", hdr.ioc_len, LIBCFS_IOC_DATA_MAX); -- cgit v0.10.2 From da4e5898375a100e6c1be984ceee84fb5911b6f6 Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:58 -0400 Subject: staging: lustre: lnet: make sure lnet data not greater than LIBCFS_IOC_DATA_MAX Fail to compile if largest LNet user land data structures passed to kernel are larger than LIBCFS_IOC_DATA_MAX Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c index 8764755..f825784 100644 --- a/drivers/staging/lustre/lnet/lnet/api-ni.c +++ b/drivers/staging/lustre/lnet/lnet/api-ni.c @@ -1864,6 +1864,10 @@ LNetCtl(unsigned int cmd, void *arg) int rc; unsigned long secs_passed; + BUILD_BUG_ON(LIBCFS_IOC_DATA_MAX < + sizeof(struct lnet_ioctl_net_config) + + sizeof(struct lnet_ioctl_config_data)); + switch (cmd) { case IOC_LIBCFS_GET_NI: rc = LNetGetId(data->ioc_count, &id); -- cgit v0.10.2 From a0d5fce76d69f574df1577d20dc3b25f99031167 Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Tue, 22 Mar 2016 19:03:59 -0400 Subject: staging: lustre: simple cleanup in obd_ioctl_popdata Code simplification for obd_ioctl_popdata. Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c index 8eddf20..2cd4522 100644 --- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c +++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c @@ -158,9 +158,7 @@ int obd_ioctl_popdata(void __user *arg, void *data, int len) { int err; - err = copy_to_user(arg, data, len); - if (err) - err = -EFAULT; + err = copy_to_user(arg, data, len) ? -EFAULT : 0; return err; } EXPORT_SYMBOL(obd_ioctl_popdata); -- cgit v0.10.2 From 7401a6b067bcea2469cb0d6bdae34d8dcafc2a0d Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 22 Mar 2016 19:04:00 -0400 Subject: staging: lustre: libcfs: change variable name Change arg to uparam name for libcfs_ioctl(). Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam Reviewed-by: Johann Lombardi Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 97fc905..839145e8 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -113,14 +113,14 @@ int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand) EXPORT_SYMBOL(libcfs_deregister_ioctl); static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, - void __user *arg) + void __user *uparam) { struct libcfs_ioctl_data *data = NULL; struct libcfs_ioctl_hdr *hdr; int err; /* 'cmd' and permissions get checked in our arch-specific caller */ - err = libcfs_ioctl_getdata(&hdr, arg); + err = libcfs_ioctl_getdata(&hdr, uparam); if (err) { CDEBUG_LIMIT(D_ERROR, "libcfs ioctl: data header error %d\n", err); @@ -169,7 +169,7 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, continue; if (!err) - err = libcfs_ioctl_popdata(arg, hdr, + err = libcfs_ioctl_popdata(uparam, hdr, hdr->ioc_len); break; } -- cgit v0.10.2 From 4801919d0825fa35a7290c3625464f460083f9d9 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Tue, 22 Mar 2016 19:04:01 -0400 Subject: staging: lustre: libcfs: remove libcfsutil.h in comment The header libcfsutil.h has been long gone in the upstream client. Replace libcfsutil.h reference to the current user land header instead. Signed-off-by: John L. Hammond Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/14180 Reviewed-by: Dmitry Eremin Reviewed-by: frank zago Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index 9c1deae..01bf8d6 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -34,7 +34,7 @@ * libcfs/include/libcfs/libcfs_ioctl.h * * Low-level ioctl data structures. Kernel ioctl functions declared here, - * and user space functions are in libcfsutil_ioctl.h. + * and user space functions are in libcfs/util/ioctl.h. * */ -- cgit v0.10.2 From 7b54d08b01e61d35d57cb5cdbaf6cd02babcdf17 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Tue, 22 Mar 2016 19:04:02 -0400 Subject: staging: lustre: libcfs: move libcfs_ioctl_handler stuff to libcfs.h Move all the libcfs_ioctl_handler code from libcfs_ioctl.h to libcfs.h. The header libcfs_ioctl.h is a uapi header so their is no reason to keep kernel internals in that header. Signed-off-by: John L. Hammond Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/14180 Reviewed-by: Dmitry Eremin Reviewed-by: frank zago Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h index 40af75c..0ce52de 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h @@ -119,6 +119,20 @@ void cfs_get_random_bytes(void *buf, int size); #include "libcfs_fail.h" #include "libcfs_crypto.h" +struct libcfs_ioctl_handler { + struct list_head item; + int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr *hdr); +}; + +#define DECLARE_IOCTL_HANDLER(ident, func) \ + struct libcfs_ioctl_handler ident = { \ + .item = LIST_HEAD_INIT(ident.item), \ + .handle_ioctl = func \ + } + +int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand); +int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand); + /* container_of depends on "likely" which is defined in libcfs_private.h */ static inline void *__container_of(void *ptr, unsigned long shift) { diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index 01bf8d6..d167d2e 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -91,17 +91,6 @@ do { \ data.ioc_len = sizeof(data); \ } while (0) -struct libcfs_ioctl_handler { - struct list_head item; - int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr *hdr); -}; - -#define DECLARE_IOCTL_HANDLER(ident, func) \ - struct libcfs_ioctl_handler ident = { \ - /* .item = */ LIST_HEAD_INIT(ident.item), \ - /* .handle_ioctl = */ func \ - } - /* FIXME check conflict with lustre_lib.h */ #define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long) @@ -223,8 +212,6 @@ static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data) return 0; } -int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand); -int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand); int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, const struct libcfs_ioctl_hdr __user *uparam); int libcfs_ioctl_popdata(void __user *arg, void *buf, int size); -- cgit v0.10.2 From 5206726ad8e286a09e73ae4a542de47f96d62f27 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Tue, 22 Mar 2016 19:04:03 -0400 Subject: staging: lustre: libcfs: remove libcfs_ioctl_popdata wrapper Lets just use copy_to_user() directly instead of having a wrapper function. Signed-off-by: John L. Hammond Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/14180 Reviewed-by: Dmitry Eremin Reviewed-by: frank zago Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index d167d2e..45d1165 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -214,7 +214,6 @@ static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data) int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, const struct libcfs_ioctl_hdr __user *uparam); -int libcfs_ioctl_popdata(void __user *arg, void *buf, int size); int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data); #endif /* __LIBCFS_IOCTL_H__ */ diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index ae05895..890a458 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -95,13 +95,6 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, return err; } -int libcfs_ioctl_popdata(void __user *arg, void *data, int size) -{ - if (copy_to_user(arg, data, size)) - return -EFAULT; - return 0; -} - static int libcfs_psdev_open(struct inode *inode, struct file *file) { diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 839145e8..74b9236 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -168,9 +168,10 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, if (err == -EINVAL) continue; - if (!err) - err = libcfs_ioctl_popdata(uparam, hdr, - hdr->ioc_len); + if (!err) { + if (copy_to_user(uparam, hdr, hdr->ioc_len)) + err = -EFAULT; + } break; } up_read(&ioctl_list_sem); -- cgit v0.10.2 From 68cf5b83659ecee9ad8a14d8ce74e9c5df6d0956 Mon Sep 17 00:00:00 2001 From: Parinay Kondekar Date: Tue, 22 Mar 2016 19:04:04 -0400 Subject: staging:lustre: remove last bits of the IOC_LIBCFS_PANIC ioctl A few pieces still exist for the IOC_LIBCFS_PANIC ioctl. Remove these last bits to prevent old tools from using them. The latest lustre utilities no longer use this ioctl. Signed-off-by: Parinay Kondekar Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844 Reviewed-on: http://review.whamcloud.com/17492 Reviewed-by: Andreas Dilger Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index 45d1165..d158cd1 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -97,7 +97,7 @@ do { \ #define IOC_LIBCFS_TYPE 'e' #define IOC_LIBCFS_MIN_NR 30 /* libcfs ioctls */ -#define IOC_LIBCFS_PANIC _IOWR('e', 30, long) +/* IOC_LIBCFS_PANIC obsolete in 2.8.0, was _IOWR('e', 30, IOCTL_LIBCFS_TYPE) */ #define IOC_LIBCFS_CLEAR_DEBUG _IOWR('e', 31, long) #define IOC_LIBCFS_MARK_DEBUG _IOWR('e', 32, long) #define IOC_LIBCFS_MEMHOG _IOWR('e', 36, long) diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index 890a458..d801d87 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -141,15 +141,6 @@ static long libcfs_ioctl(struct file *file, return -EINVAL; } - /* Handle platform-dependent IOC requests */ - switch (cmd) { - case IOC_LIBCFS_PANIC: - if (!capable(CFS_CAP_SYS_BOOT)) - return -EPERM; - panic("debugctl-invoked panic"); - return 0; - } - if (libcfs_psdev_ops.p_ioctl) rc = libcfs_psdev_ops.p_ioctl(&pfile, cmd, (void __user *)arg); else diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 74b9236..3a88e64 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -145,10 +145,7 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, case IOC_LIBCFS_CLEAR_DEBUG: libcfs_debug_clear_buffer(); break; - /* - * case IOC_LIBCFS_PANIC: - * Handled in arch/cfs_module.c - */ + case IOC_LIBCFS_MARK_DEBUG: if (!data || !data->ioc_inlbuf1 || data->ioc_inlbuf1[data->ioc_inllen1 - 1] != '\0') { -- cgit v0.10.2 From c878547fdfa4f8023930cd43b75023f3061f9aa6 Mon Sep 17 00:00:00 2001 From: Parinay Kondekar Date: Tue, 22 Mar 2016 19:04:05 -0400 Subject: staging:lustre: remove the IOC_LIBCFS_MEMHOG ioctl The IOC_LIBCFS_MEMHOG is not needed so remove the last bits. Signed-off-by: Parinay Kondekar Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844 Reviewed-on: http://review.whamcloud.com/17492 Reviewed-by: Andreas Dilger Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index d158cd1..2e4e31b 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -100,7 +100,7 @@ do { \ /* IOC_LIBCFS_PANIC obsolete in 2.8.0, was _IOWR('e', 30, IOCTL_LIBCFS_TYPE) */ #define IOC_LIBCFS_CLEAR_DEBUG _IOWR('e', 31, long) #define IOC_LIBCFS_MARK_DEBUG _IOWR('e', 32, long) -#define IOC_LIBCFS_MEMHOG _IOWR('e', 36, long) +/* IOC_LIBCFS_MEMHOG obsolete in 2.8.0, was _IOWR('e', 36, IOCTL_LIBCFS_TYPE) */ /* lnet ioctls */ #define IOC_LIBCFS_GET_NI _IOWR('e', 50, long) #define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, long) -- cgit v0.10.2 From 4678d183caf1b8a68860ca07fad95d9c6de14cc3 Mon Sep 17 00:00:00 2001 From: Parinay Kondekar Date: Tue, 22 Mar 2016 19:04:06 -0400 Subject: staging:lustre: remove libcfs_psdev_[open|release] With struct libcfs_device_userstate gone we can remove the remaining code of libcfs_psdev_ops.p_[open|close] as well as the libcfs_psdev_[open|release] functions. Signed-off-by: Parinay Kondekar Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844 Reviewed-on: http://review.whamcloud.com/17492 Reviewed-by: Andreas Dilger Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h index 0ce52de..5d228e5 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h @@ -73,8 +73,6 @@ struct cfs_psdev_file { }; struct cfs_psdev_ops { - int (*p_open)(unsigned long, void *); - int (*p_close)(unsigned long, void *); int (*p_read)(struct cfs_psdev_file *, char *, unsigned long); int (*p_write)(struct cfs_psdev_file *, char *, unsigned long); int (*p_ioctl)(struct cfs_psdev_file *, unsigned long, void __user *); diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index d801d87..633d76b 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -95,35 +95,6 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, return err; } -static int -libcfs_psdev_open(struct inode *inode, struct file *file) -{ - int rc = 0; - - if (!inode) - return -EINVAL; - if (libcfs_psdev_ops.p_open) - rc = libcfs_psdev_ops.p_open(0, NULL); - else - return -EPERM; - return rc; -} - -/* called when closing /dev/device */ -static int -libcfs_psdev_release(struct inode *inode, struct file *file) -{ - int rc = 0; - - if (!inode) - return -EINVAL; - if (libcfs_psdev_ops.p_close) - rc = libcfs_psdev_ops.p_close(0, NULL); - else - rc = -EPERM; - return rc; -} - static long libcfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { @@ -149,9 +120,8 @@ static long libcfs_ioctl(struct file *file, } static const struct file_operations libcfs_fops = { + .owner = THIS_MODULE, .unlocked_ioctl = libcfs_ioctl, - .open = libcfs_psdev_open, - .release = libcfs_psdev_release, }; struct miscdevice libcfs_dev = { diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 3a88e64..4d38aaf 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -65,20 +65,6 @@ static struct dentry *lnet_debugfs_root; -/* called when opening /dev/device */ -static int libcfs_psdev_open(unsigned long flags, void *args) -{ - try_module_get(THIS_MODULE); - return 0; -} - -/* called when closing /dev/device */ -static int libcfs_psdev_release(unsigned long flags, void *args) -{ - module_put(THIS_MODULE); - return 0; -} - static DECLARE_RWSEM(ioctl_list_sem); static LIST_HEAD(ioctl_list); @@ -180,8 +166,6 @@ out: } struct cfs_psdev_ops libcfs_psdev_ops = { - libcfs_psdev_open, - libcfs_psdev_release, NULL, NULL, libcfs_ioctl -- cgit v0.10.2 From ae272a48a16b53f77215749a68777c6c89ec9925 Mon Sep 17 00:00:00 2001 From: Parinay Kondekar Date: Tue, 22 Mar 2016 19:04:07 -0400 Subject: staging:lustre: call libcfs_ioctl directly No reason to go through the cfs_psdev_ops abstract to call libcfs_ioctl. Just call libcfs_ioctl directly. Signed-off-by: Parinay Kondekar Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844 Reviewed-on: http://review.whamcloud.com/17492 Reviewed-by: Andreas Dilger Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h index 5d228e5..592ad31 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h @@ -75,7 +75,6 @@ struct cfs_psdev_file { struct cfs_psdev_ops { int (*p_read)(struct cfs_psdev_file *, char *, unsigned long); int (*p_write)(struct cfs_psdev_file *, char *, unsigned long); - int (*p_ioctl)(struct cfs_psdev_file *, unsigned long, void __user *); }; /* @@ -131,6 +130,8 @@ struct libcfs_ioctl_handler { int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand); int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand); +int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, void *arg); + /* container_of depends on "likely" which is defined in libcfs_private.h */ static inline void *__container_of(void *ptr, unsigned long shift) { diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index 633d76b..6f35a80 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -95,11 +95,10 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, return err; } -static long libcfs_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) +static long +libcfs_psdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct cfs_psdev_file pfile; - int rc = 0; if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -112,16 +111,12 @@ static long libcfs_ioctl(struct file *file, return -EINVAL; } - if (libcfs_psdev_ops.p_ioctl) - rc = libcfs_psdev_ops.p_ioctl(&pfile, cmd, (void __user *)arg); - else - rc = -EPERM; - return rc; + return libcfs_ioctl(&pfile, cmd, (void __user *)arg); } static const struct file_operations libcfs_fops = { .owner = THIS_MODULE, - .unlocked_ioctl = libcfs_ioctl, + .unlocked_ioctl = libcfs_psdev_ioctl, }; struct miscdevice libcfs_dev = { diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 4d38aaf..4af4557 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -98,8 +98,8 @@ int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand) } EXPORT_SYMBOL(libcfs_deregister_ioctl); -static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, - void __user *uparam) +int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, + void __user *uparam) { struct libcfs_ioctl_data *data = NULL; struct libcfs_ioctl_hdr *hdr; @@ -168,7 +168,6 @@ out: struct cfs_psdev_ops libcfs_psdev_ops = { NULL, NULL, - libcfs_ioctl }; int lprocfs_call_handler(void *data, int write, loff_t *ppos, -- cgit v0.10.2 From 89010fbc22162708c39447129580c4a47b03260e Mon Sep 17 00:00:00 2001 From: Parinay Kondekar Date: Tue, 22 Mar 2016 19:04:08 -0400 Subject: staging:lustre: remove libcfs pseudo device abstraction With the libcfs ioctl cleanup we no longer need the libcfs pseudo device abstraction. Signed-off-by: Parinay Kondekar Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5844 Reviewed-on: http://review.whamcloud.com/17492 Reviewed-by: Andreas Dilger Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h index 592ad31..1cd1879 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h @@ -60,24 +60,6 @@ #define LNET_ACCEPTOR_MAX_RESERVED_PORT 1023 /* - * libcfs pseudo device operations - * - * It's just draft now. - */ - -struct cfs_psdev_file { - unsigned long off; - void *private_data; - unsigned long reserved1; - unsigned long reserved2; -}; - -struct cfs_psdev_ops { - int (*p_read)(struct cfs_psdev_file *, char *, unsigned long); - int (*p_write)(struct cfs_psdev_file *, char *, unsigned long); -}; - -/* * Drop into debugger, if possible. Implementation is provided by platform. */ @@ -130,7 +112,7 @@ struct libcfs_ioctl_handler { int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand); int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand); -int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, void *arg); +int libcfs_ioctl(unsigned long cmd, void *arg); /* container_of depends on "likely" which is defined in libcfs_private.h */ static inline void *__container_of(void *ptr, unsigned long shift) @@ -156,8 +138,6 @@ extern struct miscdevice libcfs_dev; extern char lnet_upcall[1024]; extern char lnet_debug_log_upcall[1024]; -extern struct cfs_psdev_ops libcfs_psdev_ops; - extern struct cfs_wi_sched *cfs_sched_rehash; struct lnet_debugfs_symlink_def { diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index 6f35a80..7634551 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -98,8 +98,6 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, static long libcfs_psdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct cfs_psdev_file pfile; - if (!capable(CAP_SYS_ADMIN)) return -EACCES; @@ -111,7 +109,7 @@ libcfs_psdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) return -EINVAL; } - return libcfs_ioctl(&pfile, cmd, (void __user *)arg); + return libcfs_ioctl(cmd, (void __user *)arg); } static const struct file_operations libcfs_fops = { diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 4af4557..49c2d03 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -98,8 +98,7 @@ int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand) } EXPORT_SYMBOL(libcfs_deregister_ioctl); -int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd, - void __user *uparam) +int libcfs_ioctl(unsigned long cmd, void __user *uparam) { struct libcfs_ioctl_data *data = NULL; struct libcfs_ioctl_hdr *hdr; @@ -165,11 +164,6 @@ out: return err; } -struct cfs_psdev_ops libcfs_psdev_ops = { - NULL, - NULL, -}; - int lprocfs_call_handler(void *data, int write, loff_t *ppos, void __user *buffer, size_t *lenp, int (*handler)(void *data, int write, loff_t pos, -- cgit v0.10.2 From b02e9d87a76501f2782436c3d5c8d2dde63023dc Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 22 Mar 2016 19:04:09 -0400 Subject: staging: lustre: libcfs: removal all userland only macros from libcfs_ioctl.h All the macros in libcfs_ioctl.h that is needed by user land have been moved into the lustre utilities software stack. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/17643 Reviewed-by: Bob Glossman Reviewed-by: John L. Hammond Reviewed-by: Dmitry Eremin Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index 2e4e31b..e109a4b 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -76,21 +76,12 @@ struct libcfs_ioctl_data { char ioc_bulk[0]; }; -#define ioc_priority ioc_u32[0] - struct libcfs_debug_ioctl_data { struct libcfs_ioctl_hdr hdr; unsigned int subs; unsigned int debug; }; -#define LIBCFS_IOC_INIT(data) \ -do { \ - memset(&data, 0, sizeof(data)); \ - data.ioc_version = LIBCFS_IOCTL_VERSION; \ - data.ioc_len = sizeof(data); \ -} while (0) - /* FIXME check conflict with lustre_lib.h */ #define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long) -- cgit v0.10.2 From cfec4b5c66fa3412b712a6409c2c3d4192faea45 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 22 Mar 2016 19:04:10 -0400 Subject: staging: lustre: libcfs: migrate inline functions to source file Move large inline functions out of libcfs_ioctl.h to the source file linux-module.c belonging to libcfs. This code is only used by the core of libcfs and such inline functions don't belong in a uapi header file. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/17643 Reviewed-by: Bob Glossman Reviewed-by: John L. Hammond Reviewed-by: Dmitry Eremin Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index e109a4b..3af13e4 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -138,71 +138,6 @@ struct libcfs_debug_ioctl_data { #define IOC_LIBCFS_GET_LNET_STATS _IOWR(IOC_LIBCFS_TYPE, 91, IOCTL_CONFIG_SIZE) #define IOC_LIBCFS_MAX_NR 91 -static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data) -{ - int len = sizeof(*data); - - len += cfs_size_round(data->ioc_inllen1); - len += cfs_size_round(data->ioc_inllen2); - return len; -} - -static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data) -{ - if (data->ioc_hdr.ioc_len > (1 << 30)) { - CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n"); - return 1; - } - if (data->ioc_inllen1 > (1<<30)) { - CERROR("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n"); - return 1; - } - if (data->ioc_inllen2 > (1<<30)) { - CERROR("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n"); - return 1; - } - if (data->ioc_inlbuf1 && !data->ioc_inllen1) { - CERROR("LIBCFS ioctl: inlbuf1 pointer but 0 length\n"); - return 1; - } - if (data->ioc_inlbuf2 && !data->ioc_inllen2) { - CERROR("LIBCFS ioctl: inlbuf2 pointer but 0 length\n"); - return 1; - } - if (data->ioc_pbuf1 && !data->ioc_plen1) { - CERROR("LIBCFS ioctl: pbuf1 pointer but 0 length\n"); - return 1; - } - if (data->ioc_pbuf2 && !data->ioc_plen2) { - CERROR("LIBCFS ioctl: pbuf2 pointer but 0 length\n"); - return 1; - } - if (data->ioc_plen1 && !data->ioc_pbuf1) { - CERROR("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n"); - return 1; - } - if (data->ioc_plen2 && !data->ioc_pbuf2) { - CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n"); - return 1; - } - if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_hdr.ioc_len) { - CERROR("LIBCFS ioctl: packlen != ioc_len\n"); - return 1; - } - if (data->ioc_inllen1 && - data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') { - CERROR("LIBCFS ioctl: inlbuf1 not 0 terminated\n"); - return 1; - } - if (data->ioc_inllen2 && - data->ioc_bulk[cfs_size_round(data->ioc_inllen1) + - data->ioc_inllen2 - 1] != '\0') { - CERROR("LIBCFS ioctl: inlbuf2 not 0 terminated\n"); - return 1; - } - return 0; -} - int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, const struct libcfs_ioctl_hdr __user *uparam); int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data); diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index 7634551..af19f3c 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -40,6 +40,71 @@ #define LNET_MINOR 240 +static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data) +{ + int len = sizeof(*data); + + len += cfs_size_round(data->ioc_inllen1); + len += cfs_size_round(data->ioc_inllen2); + return len; +} + +static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data) +{ + if (data->ioc_hdr.ioc_len > (1 << 30)) { + CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n"); + return 1; + } + if (data->ioc_inllen1 > (1<<30)) { + CERROR("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n"); + return 1; + } + if (data->ioc_inllen2 > (1<<30)) { + CERROR("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n"); + return 1; + } + if (data->ioc_inlbuf1 && !data->ioc_inllen1) { + CERROR("LIBCFS ioctl: inlbuf1 pointer but 0 length\n"); + return 1; + } + if (data->ioc_inlbuf2 && !data->ioc_inllen2) { + CERROR("LIBCFS ioctl: inlbuf2 pointer but 0 length\n"); + return 1; + } + if (data->ioc_pbuf1 && !data->ioc_plen1) { + CERROR("LIBCFS ioctl: pbuf1 pointer but 0 length\n"); + return 1; + } + if (data->ioc_pbuf2 && !data->ioc_plen2) { + CERROR("LIBCFS ioctl: pbuf2 pointer but 0 length\n"); + return 1; + } + if (data->ioc_plen1 && !data->ioc_pbuf1) { + CERROR("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n"); + return 1; + } + if (data->ioc_plen2 && !data->ioc_pbuf2) { + CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n"); + return 1; + } + if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_hdr.ioc_len) { + CERROR("LIBCFS ioctl: packlen != ioc_len\n"); + return 1; + } + if (data->ioc_inllen1 && + data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') { + CERROR("LIBCFS ioctl: inlbuf1 not 0 terminated\n"); + return 1; + } + if (data->ioc_inllen2 && + data->ioc_bulk[cfs_size_round(data->ioc_inllen1) + + data->ioc_inllen2 - 1] != '\0') { + CERROR("LIBCFS ioctl: inlbuf2 not 0 terminated\n"); + return 1; + } + return 0; +} + int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data) { if (libcfs_ioctl_is_invalid(data)) { -- cgit v0.10.2 From 659bd8d9792a354ba755dab623dc9909cd03206e Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 22 Mar 2016 19:04:11 -0400 Subject: staging: lustre: libcfs: move function declarations from libcfs_ioctl.h Move the function declartions that are used only by kernel space to libcfs.h This makes libcfs_ioctl.h a offical uapi header now. Move large inline functions out of libcfs_ioctl.h to the source file linux-module.c belonging to libcfs. This code is only used by the core of libcfs and such inline functions don't belong in a uapi header file. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/17643 Reviewed-by: Bob Glossman Reviewed-by: John L. Hammond Reviewed-by: Dmitry Eremin Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h index 1cd1879..6a8e0d0 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h @@ -112,6 +112,9 @@ struct libcfs_ioctl_handler { int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand); int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand); +int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, + const struct libcfs_ioctl_hdr __user *uparam); +int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data); int libcfs_ioctl(unsigned long cmd, void *arg); /* container_of depends on "likely" which is defined in libcfs_private.h */ diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index 3af13e4..c379d29 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -138,8 +138,4 @@ struct libcfs_debug_ioctl_data { #define IOC_LIBCFS_GET_LNET_STATS _IOWR(IOC_LIBCFS_TYPE, 91, IOCTL_CONFIG_SIZE) #define IOC_LIBCFS_MAX_NR 91 -int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, - const struct libcfs_ioctl_hdr __user *uparam); -int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data); - #endif /* __LIBCFS_IOCTL_H__ */ -- cgit v0.10.2 From da71485102ff8d4b3481dedddcb5a79164f1e4bb Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 22 Mar 2016 19:04:12 -0400 Subject: staging: lustre: libcfs: make libcfs_ioctl.h readable Fix up all thw whitescapes and line up the IOCTL defines so it is readable. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/17643 Reviewed-by: Bob Glossman Reviewed-by: John L. Hammond Reviewed-by: Dmitry Eremin Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index c379d29..48372c4 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -82,41 +82,42 @@ struct libcfs_debug_ioctl_data { unsigned int debug; }; -/* FIXME check conflict with lustre_lib.h */ -#define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long) +/* 'f' ioctls are defined in lustre_ioctl.h and lustre_user.h except for: */ +#define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long) +#define IOCTL_LIBCFS_TYPE long -#define IOC_LIBCFS_TYPE 'e' -#define IOC_LIBCFS_MIN_NR 30 +#define IOC_LIBCFS_TYPE ('e') +#define IOC_LIBCFS_MIN_NR 30 /* libcfs ioctls */ /* IOC_LIBCFS_PANIC obsolete in 2.8.0, was _IOWR('e', 30, IOCTL_LIBCFS_TYPE) */ -#define IOC_LIBCFS_CLEAR_DEBUG _IOWR('e', 31, long) -#define IOC_LIBCFS_MARK_DEBUG _IOWR('e', 32, long) +#define IOC_LIBCFS_CLEAR_DEBUG _IOWR('e', 31, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_MARK_DEBUG _IOWR('e', 32, IOCTL_LIBCFS_TYPE) /* IOC_LIBCFS_MEMHOG obsolete in 2.8.0, was _IOWR('e', 36, IOCTL_LIBCFS_TYPE) */ /* lnet ioctls */ -#define IOC_LIBCFS_GET_NI _IOWR('e', 50, long) -#define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, long) -#define IOC_LIBCFS_NOTIFY_ROUTER _IOWR('e', 55, long) -#define IOC_LIBCFS_UNCONFIGURE _IOWR('e', 56, long) -/* #define IOC_LIBCFS_PORTALS_COMPATIBILITY _IOWR('e', 57, long) */ -#define IOC_LIBCFS_LNET_DIST _IOWR('e', 58, long) -#define IOC_LIBCFS_CONFIGURE _IOWR('e', 59, long) -#define IOC_LIBCFS_TESTPROTOCOMPAT _IOWR('e', 60, long) -#define IOC_LIBCFS_PING _IOWR('e', 61, long) -/* #define IOC_LIBCFS_DEBUG_PEER _IOWR('e', 62, long) */ -#define IOC_LIBCFS_LNETST _IOWR('e', 63, long) -#define IOC_LIBCFS_LNET_FAULT _IOWR('e', 64, long) +#define IOC_LIBCFS_GET_NI _IOWR('e', 50, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_NOTIFY_ROUTER _IOWR('e', 55, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_UNCONFIGURE _IOWR('e', 56, IOCTL_LIBCFS_TYPE) +/* IOC_LIBCFS_PORTALS_COMPATIBILITY _IOWR('e', 57, IOCTL_LIBCFS_TYPE) */ +#define IOC_LIBCFS_LNET_DIST _IOWR('e', 58, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_CONFIGURE _IOWR('e', 59, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_TESTPROTOCOMPAT _IOWR('e', 60, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_PING _IOWR('e', 61, IOCTL_LIBCFS_TYPE) +/* IOC_LIBCFS_DEBUG_PEER _IOWR('e', 62, IOCTL_LIBCFS_TYPE) */ +#define IOC_LIBCFS_LNETST _IOWR('e', 63, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_LNET_FAULT _IOWR('e', 64, IOCTL_LIBCFS_TYPE) /* lnd ioctls */ -#define IOC_LIBCFS_REGISTER_MYNID _IOWR('e', 70, long) -#define IOC_LIBCFS_CLOSE_CONNECTION _IOWR('e', 71, long) -#define IOC_LIBCFS_PUSH_CONNECTION _IOWR('e', 72, long) -#define IOC_LIBCFS_GET_CONN _IOWR('e', 73, long) -#define IOC_LIBCFS_DEL_PEER _IOWR('e', 74, long) -#define IOC_LIBCFS_ADD_PEER _IOWR('e', 75, long) -#define IOC_LIBCFS_GET_PEER _IOWR('e', 76, long) +#define IOC_LIBCFS_REGISTER_MYNID _IOWR('e', 70, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_CLOSE_CONNECTION _IOWR('e', 71, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_PUSH_CONNECTION _IOWR('e', 72, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_GET_CONN _IOWR('e', 73, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_DEL_PEER _IOWR('e', 74, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_ADD_PEER _IOWR('e', 75, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_GET_PEER _IOWR('e', 76, IOCTL_LIBCFS_TYPE) /* ioctl 77 is free for use */ -#define IOC_LIBCFS_ADD_INTERFACE _IOWR('e', 78, long) -#define IOC_LIBCFS_DEL_INTERFACE _IOWR('e', 79, long) -#define IOC_LIBCFS_GET_INTERFACE _IOWR('e', 80, long) +#define IOC_LIBCFS_ADD_INTERFACE _IOWR('e', 78, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_DEL_INTERFACE _IOWR('e', 79, IOCTL_LIBCFS_TYPE) +#define IOC_LIBCFS_GET_INTERFACE _IOWR('e', 80, IOCTL_LIBCFS_TYPE) /* * DLC Specific IOCTL numbers. -- cgit v0.10.2 From 92c18e1335cf757d9881864b58e725482b38a398 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 22 Mar 2016 19:04:13 -0400 Subject: staging: lustre: libcfs: add uapi headers to libcfs_ioctl.h Need a few uapi headers to make libcfs_ioctl.h compilable in userland. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/17643 Reviewed-by: Bob Glossman Reviewed-by: John L. Hammond Reviewed-by: Dmitry Eremin Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index 48372c4..4b9102b 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -41,6 +41,9 @@ #ifndef __LIBCFS_IOCTL_H__ #define __LIBCFS_IOCTL_H__ +#include +#include + #define LIBCFS_IOCTL_VERSION 0x0001000a #define LIBCFS_IOCTL_VERSION2 0x0001000b -- cgit v0.10.2 From 460a222d9e1c5c0b2f1e037aeab0408a733031dc Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 22 Mar 2016 19:04:14 -0400 Subject: staging: lustre: libcfs: return proper bool values Return real bool values for libcfs_ioctl_is_invalid(). Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/17643 Reviewed-by: Bob Glossman Reviewed-by: John L. Hammond Reviewed-by: Dmitry Eremin Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index af19f3c..d5b7d3a 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -53,56 +53,56 @@ static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data) { if (data->ioc_hdr.ioc_len > (1 << 30)) { CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n"); - return 1; + return true; } if (data->ioc_inllen1 > (1<<30)) { CERROR("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n"); - return 1; + return true; } if (data->ioc_inllen2 > (1<<30)) { CERROR("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n"); - return 1; + return true; } if (data->ioc_inlbuf1 && !data->ioc_inllen1) { CERROR("LIBCFS ioctl: inlbuf1 pointer but 0 length\n"); - return 1; + return true; } if (data->ioc_inlbuf2 && !data->ioc_inllen2) { CERROR("LIBCFS ioctl: inlbuf2 pointer but 0 length\n"); - return 1; + return true; } if (data->ioc_pbuf1 && !data->ioc_plen1) { CERROR("LIBCFS ioctl: pbuf1 pointer but 0 length\n"); - return 1; + return true; } if (data->ioc_pbuf2 && !data->ioc_plen2) { CERROR("LIBCFS ioctl: pbuf2 pointer but 0 length\n"); - return 1; + return true; } if (data->ioc_plen1 && !data->ioc_pbuf1) { CERROR("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n"); - return 1; + return true; } if (data->ioc_plen2 && !data->ioc_pbuf2) { CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n"); - return 1; + return true; } if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_hdr.ioc_len) { CERROR("LIBCFS ioctl: packlen != ioc_len\n"); - return 1; + return true; } if (data->ioc_inllen1 && data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') { CERROR("LIBCFS ioctl: inlbuf1 not 0 terminated\n"); - return 1; + return true; } if (data->ioc_inllen2 && data->ioc_bulk[cfs_size_round(data->ioc_inllen1) + data->ioc_inllen2 - 1] != '\0') { CERROR("LIBCFS ioctl: inlbuf2 not 0 terminated\n"); - return 1; + return true; } - return 0; + return false; } int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data) -- cgit v0.10.2 From 243fddea35f8337016049d1bffc1599cd28330a4 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 22 Mar 2016 19:04:15 -0400 Subject: staging: lustre: libcfs: use BIT macro in linux-module.c Use the proper BIT macro for libcfs_ioctl_is_invalid(). Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/17643 Reviewed-by: Bob Glossman Reviewed-by: John L. Hammond Reviewed-by: Dmitry Eremin Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index d5b7d3a..cf191ef 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -51,15 +51,15 @@ static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data) static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data) { - if (data->ioc_hdr.ioc_len > (1 << 30)) { + if (data->ioc_hdr.ioc_len > BIT(30)) { CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n"); return true; } - if (data->ioc_inllen1 > (1<<30)) { + if (data->ioc_inllen1 > BIT(30)) { CERROR("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n"); return true; } - if (data->ioc_inllen2 > (1<<30)) { + if (data->ioc_inllen2 > BIT(30)) { CERROR("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n"); return true; } -- cgit v0.10.2 From c9493bd6c98d3f737341dc8eb7d4aac574934a0d Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 22 Mar 2016 19:04:16 -0400 Subject: staging: lustre: libcfs: return size_t for libcfs_ioctl_packlen Change return value to size_t. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/17643 Reviewed-by: Bob Glossman Reviewed-by: John L. Hammond Reviewed-by: Dmitry Eremin Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index cf191ef..b86e937 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -40,9 +40,9 @@ #define LNET_MINOR 240 -static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data) +static inline size_t libcfs_ioctl_packlen(struct libcfs_ioctl_data *data) { - int len = sizeof(*data); + size_t len = sizeof(*data); len += cfs_size_round(data->ioc_inllen1); len += cfs_size_round(data->ioc_inllen2); -- cgit v0.10.2 From 800aecc30b946e849f256e52dfe5c278fc32eb13 Mon Sep 17 00:00:00 2001 From: Erik Arfvidson Date: Thu, 24 Mar 2016 09:18:09 -0400 Subject: staging: unisys: remove channel.h double negative comparison This patch removes the double negative comparisons for function readb. Signed-off-by: Erik Arfvidson Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/channel.h b/drivers/staging/unisys/include/channel.h index 5af59a5..b3c747b 100644 --- a/drivers/staging/unisys/include/channel.h +++ b/drivers/staging/unisys/include/channel.h @@ -411,7 +411,7 @@ spar_channel_client_acquire_os(void __iomem *ch, u8 *id) mb(); /* required for channel synch */ } if (readl(&hdr->cli_state_os) == CHANNELCLI_OWNED) { - if (readb(&hdr->cli_error_os) != 0) { + if (readb(&hdr->cli_error_os)) { /* we are in an error msg throttling state; * come out of it */ @@ -459,7 +459,7 @@ spar_channel_client_acquire_os(void __iomem *ch, u8 *id) mb(); /* required for channel synch */ return 0; } - if (readb(&hdr->cli_error_os) != 0) { + if (readb(&hdr->cli_error_os)) { /* we are in an error msg throttling state; come out of it */ pr_info("%s Channel OS client acquire now successful\n", id); writeb(0, &hdr->cli_error_os); @@ -472,7 +472,7 @@ spar_channel_client_release_os(void __iomem *ch, u8 *id) { struct channel_header __iomem *hdr = ch; - if (readb(&hdr->cli_error_os) != 0) { + if (readb(&hdr->cli_error_os)) { /* we are in an error msg throttling state; come out of it */ pr_info("%s Channel OS client error state cleared\n", id); writeb(0, &hdr->cli_error_os); -- cgit v0.10.2 From 4d12b5ee26e31b964b8918e7adde081103213b06 Mon Sep 17 00:00:00 2001 From: Erik Arfvidson Date: Thu, 24 Mar 2016 09:18:10 -0400 Subject: staging: unisys: remove visorinput.c double negative comparison This patch simply removes the double negative comparison for test_bit since test_bit already preforms this check. Signed-off-by: Erik Arfvidson Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorinput/visorinput.c b/drivers/staging/unisys/visorinput/visorinput.c index 13c0316..3299cf50 100644 --- a/drivers/staging/unisys/visorinput/visorinput.c +++ b/drivers/staging/unisys/visorinput/visorinput.c @@ -470,7 +470,7 @@ handle_locking_key(struct input_dev *visorinput_dev, break; } if (led >= 0) { - int old_state = (test_bit(led, visorinput_dev->led) != 0); + int old_state = (test_bit(led, visorinput_dev->led)); if (old_state != desired_state) { input_report_key(visorinput_dev, keycode, 1); -- cgit v0.10.2 From 48f571489c0e8263b7a37dcd794ecf19b852a4df Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 23 Mar 2016 22:15:49 -0400 Subject: staging: unisys: visorbus: replaced vague variable name in typeguid_show The variable name "s" doesn't indicate the purpose of the string, which is to store the id collected from the visorchannel_id function. This just replaces the name with "typeid". Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 54d77dd..af5add5 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -279,12 +279,12 @@ static ssize_t typeguid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct visor_device *vdev = to_visor_device(dev); - char s[99]; + char typeid[99]; if (!vdev->visorchannel) return 0; return snprintf(buf, PAGE_SIZE, "%s\n", - visorchannel_id(vdev->visorchannel, s)); + visorchannel_id(vdev->visorchannel, typeid)); } static ssize_t zoneguid_show(struct device *dev, struct device_attribute *attr, -- cgit v0.10.2 From 62f3dc856736d5ddc782ee1313626ef1adfe18a9 Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 23 Mar 2016 22:15:50 -0400 Subject: staging: unisys: visorbus: replaced vague variable name in zoneguid_show The variable name "s" doesn't indicate the purpose of the string, which is to store the id collected from the visorchannel_zoneid function. This just replaces the name with "zoneid". Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index af5add5..41a6d3a 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -291,12 +291,12 @@ static ssize_t zoneguid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct visor_device *vdev = to_visor_device(dev); - char s[99]; + char zoneid[99]; if (!vdev->visorchannel) return 0; return snprintf(buf, PAGE_SIZE, "%s\n", - visorchannel_zoneid(vdev->visorchannel, s)); + visorchannel_zoneid(vdev->visorchannel, zoneid)); } static ssize_t typename_show(struct device *dev, struct device_attribute *attr, -- cgit v0.10.2 From 8d7da1d8c2aa5564af442b4371216b4a4288cd5a Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 23 Mar 2016 22:15:51 -0400 Subject: staging: unisys: visorbus: replaced vague 'p' variable with 'pos' In the case of client_bus_info_show, the variable 'p' was used to indicate the position in the output buffer. This was changed to 'pos' to indicate that it kept track of the current position in the output buffer. Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 41a6d3a..33407a7 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -422,7 +422,7 @@ static ssize_t client_bus_info_show(struct device *dev, int i, x, remain = PAGE_SIZE; unsigned long off; - char *p = buf; + char *pos = buf; u8 *partition_name; struct ultra_vbus_deviceinfo dev_info; @@ -430,10 +430,10 @@ static ssize_t client_bus_info_show(struct device *dev, if (channel) { if (vdev->name) partition_name = vdev->name; - x = snprintf(p, remain, + x = snprintf(pos, remain, "Client device / client driver info for %s partition (vbus #%d):\n", partition_name, vdev->chipset_dev_no); - p += x; + pos += x; remain -= x; x = visorchannel_read(channel, offsetof(struct @@ -441,9 +441,9 @@ static ssize_t client_bus_info_show(struct device *dev, chp_info), &dev_info, sizeof(dev_info)); if (x >= 0) { - x = vbuschannel_devinfo_to_string(&dev_info, p, + x = vbuschannel_devinfo_to_string(&dev_info, pos, remain, -1); - p += x; + pos += x; remain -= x; } x = visorchannel_read(channel, @@ -452,9 +452,9 @@ static ssize_t client_bus_info_show(struct device *dev, bus_info), &dev_info, sizeof(dev_info)); if (x >= 0) { - x = vbuschannel_devinfo_to_string(&dev_info, p, + x = vbuschannel_devinfo_to_string(&dev_info, pos, remain, -1); - p += x; + pos += x; remain -= x; } off = offsetof(struct spar_vbus_channel_protocol, dev_info); @@ -465,8 +465,8 @@ static ssize_t client_bus_info_show(struct device *dev, off, &dev_info, sizeof(dev_info)); if (x >= 0) { x = vbuschannel_devinfo_to_string - (&dev_info, p, remain, i); - p += x; + (&dev_info, pos, remain, i); + pos += x; remain -= x; } off += sizeof(dev_info); -- cgit v0.10.2 From a22f57c65062a5ca6b4e7ccfbd143c3819b9045b Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 23 Mar 2016 22:15:52 -0400 Subject: staging: unisys: visorbus: replaced use of vague 'x' variable In client_bus_info_show, the variable 'x' is used to create keep track of the offset that the current 'pos' in the output buffer needs to be incremented by. Since 'off' is already taken 'shift' was used since it's used to shift the pointer. Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 33407a7..1fcb177 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -420,7 +420,7 @@ static ssize_t client_bus_info_show(struct device *dev, struct visor_device *vdev = to_visor_device(dev); struct visorchannel *channel = vdev->visorchannel; - int i, x, remain = PAGE_SIZE; + int i, shift, remain = PAGE_SIZE; unsigned long off; char *pos = buf; u8 *partition_name; @@ -430,44 +430,45 @@ static ssize_t client_bus_info_show(struct device *dev, if (channel) { if (vdev->name) partition_name = vdev->name; - x = snprintf(pos, remain, - "Client device / client driver info for %s partition (vbus #%d):\n", - partition_name, vdev->chipset_dev_no); - pos += x; - remain -= x; - x = visorchannel_read(channel, - offsetof(struct - spar_vbus_channel_protocol, - chp_info), - &dev_info, sizeof(dev_info)); - if (x >= 0) { - x = vbuschannel_devinfo_to_string(&dev_info, pos, - remain, -1); - pos += x; - remain -= x; + shift = snprintf(pos, remain, + "Client device / client driver info for %s eartition (vbus #%d):\n", + partition_name, vdev->chipset_dev_no); + pos += shift; + remain -= shift; + shift = visorchannel_read(channel, + offsetof(struct + spar_vbus_channel_protocol, + chp_info), + &dev_info, sizeof(dev_info)); + if (shift >= 0) { + shift = vbuschannel_devinfo_to_string(&dev_info, pos, + remain, -1); + pos += shift; + remain -= shift; } - x = visorchannel_read(channel, - offsetof(struct - spar_vbus_channel_protocol, - bus_info), - &dev_info, sizeof(dev_info)); - if (x >= 0) { - x = vbuschannel_devinfo_to_string(&dev_info, pos, - remain, -1); - pos += x; - remain -= x; + shift = visorchannel_read(channel, + offsetof(struct + spar_vbus_channel_protocol, + bus_info), + &dev_info, sizeof(dev_info)); + if (shift >= 0) { + shift = vbuschannel_devinfo_to_string(&dev_info, pos, + remain, -1); + pos += shift; + remain -= shift; } off = offsetof(struct spar_vbus_channel_protocol, dev_info); i = 0; while (off + sizeof(dev_info) <= visorchannel_get_nbytes(channel)) { - x = visorchannel_read(channel, - off, &dev_info, sizeof(dev_info)); - if (x >= 0) { - x = vbuschannel_devinfo_to_string + shift = visorchannel_read(channel, + off, &dev_info, + sizeof(dev_info)); + if (shift >= 0) { + shift = vbuschannel_devinfo_to_string (&dev_info, pos, remain, i); - pos += x; - remain -= x; + pos += shift; + remain -= shift; } off += sizeof(dev_info); i++; -- cgit v0.10.2 From 85d83cd8c629e053e3aaec0a4dd6c798d46c109d Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 23 Mar 2016 22:15:53 -0400 Subject: staging: unisys: include: changed 'v' variable to 'state' The argument for ULTRA_CHANNELCLI_STRING is supposed to be an integer representing the channel state. 'state' is a more descriptive variable name for this. Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/channel.h b/drivers/staging/unisys/include/channel.h index b3c747b..db4e6b2 100644 --- a/drivers/staging/unisys/include/channel.h +++ b/drivers/staging/unisys/include/channel.h @@ -76,9 +76,9 @@ enum channel_clientstate { }; static inline const u8 * -ULTRA_CHANNELCLI_STRING(u32 v) +ULTRA_CHANNELCLI_STRING(u32 state) { - switch (v) { + switch (state) { case CHANNELCLI_DETACHED: return (const u8 *)("DETACHED"); case CHANNELCLI_DISABLED: -- cgit v0.10.2 From 04dd9a421111dfb88e1ae73af0ea27f285c89b74 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Wed, 23 Mar 2016 21:28:33 +0900 Subject: staging: wilc1000: use completion instead of struct semaphore hif_sema_thread struct semaphore hif_sema_thread is used to signal completion of host interface thread. This patch replaces struct semaphore hif_sema_thread with struct completion hif_thread_comp. It is better to use completion than semaphore for this case. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index b1ffa91..3d17972 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -231,7 +231,7 @@ bool wilc_optaining_ip; static u8 P2P_LISTEN_STATE; static struct task_struct *hif_thread_handler; static struct message_queue hif_msg_q; -static struct semaphore hif_sema_thread; +static struct completion hif_thread_comp; static struct semaphore hif_sema_driver; static struct completion hif_wait_response; static struct mutex hif_deinit_lock; @@ -2668,7 +2668,7 @@ static int hostIFthread(void *pvArg) } } - up(&hif_sema_thread); + complete(&hif_thread_comp); return 0; } @@ -3400,7 +3400,7 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler) wilc_optaining_ip = false; if (clients_count == 0) { - sema_init(&hif_sema_thread, 0); + init_completion(&hif_thread_comp); sema_init(&hif_sema_driver, 0); mutex_init(&hif_deinit_lock); } @@ -3503,7 +3503,7 @@ int wilc_deinit(struct wilc_vif *vif) if (result != 0) netdev_err(vif->ndev, "deinit : Error(%d)\n", result); - down(&hif_sema_thread); + wait_for_completion(&hif_thread_comp); wilc_mq_destroy(&hif_msg_q); } -- cgit v0.10.2 From 2bb02584cd95405da72b009d0960f803d31e2302 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Wed, 23 Mar 2016 21:28:34 +0900 Subject: staging: wilc1000: use completion instead of struct semaphore hif_sema_driver struct semaphore hif_sema_driver is used to signal completion of host interface message. This patch replaces struct semaphore hif_sema_driver with struct completion hif_driver_comp. It is better to use completion than semaphore for this case. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 3d17972..29d4d8a 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -232,7 +232,7 @@ static u8 P2P_LISTEN_STATE; static struct task_struct *hif_thread_handler; static struct message_queue hif_msg_q; static struct completion hif_thread_comp; -static struct semaphore hif_sema_driver; +static struct completion hif_driver_comp; static struct completion hif_wait_response; static struct mutex hif_deinit_lock; static struct timer_list periodic_rssi; @@ -321,7 +321,7 @@ static s32 handle_set_wfi_drv_handler(struct wilc_vif *vif, hif_drv_handler->handler); if (!hif_drv_handler->handler) - up(&hif_sema_driver); + complete(&hif_driver_comp); if (result) { netdev_err(vif->ndev, "Failed to set driver handler\n"); @@ -346,7 +346,7 @@ static s32 handle_set_operation_mode(struct wilc_vif *vif, wilc_get_vif_idx(vif)); if ((hif_op_mode->mode) == IDLE_MODE) - up(&hif_sema_driver); + complete(&hif_driver_comp); if (result) { netdev_err(vif->ndev, "Failed to set driver handler\n"); @@ -3401,7 +3401,7 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler) if (clients_count == 0) { init_completion(&hif_thread_comp); - sema_init(&hif_sema_driver, 0); + init_completion(&hif_driver_comp); mutex_init(&hif_deinit_lock); } @@ -3480,7 +3480,7 @@ int wilc_deinit(struct wilc_vif *vif) del_timer_sync(&hif_drv->remain_on_ch_timer); wilc_set_wfi_drv_handler(vif, 0, 0); - down(&hif_sema_driver); + wait_for_completion(&hif_driver_comp); if (hif_drv->usr_scan_req.scan_result) { hif_drv->usr_scan_req.scan_result(SCAN_EVENT_ABORTED, NULL, -- cgit v0.10.2 From 58e7003f53f32d5beb1a047fd41125d09a1a2467 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:46 +0900 Subject: staging: wilc1000: removes WIRELESS_EXT This patch removes WIRELESS_EXT. Does not used the WIRELESS_EXT define. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/Kconfig b/drivers/staging/wilc1000/Kconfig index dce9cee..73f7fef 100644 --- a/drivers/staging/wilc1000/Kconfig +++ b/drivers/staging/wilc1000/Kconfig @@ -1,6 +1,5 @@ config WILC1000 tristate - select WIRELESS_EXT ---help--- This module only support IEEE 802.11n WiFi. -- cgit v0.10.2 From 6d11c5517f544b50827e4ee720fad512ac28e14a Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:47 +0900 Subject: staging: wilc1000: wilc_frame_register: removes unused hif_drv This patch removes unused hif_drv of wilc_frame_register function. It's perform an unnecessary null check and debug print log. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 29d4d8a..04cbff5 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3689,12 +3689,6 @@ int wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg) { int result = 0; struct host_if_msg msg; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } memset(&msg, 0, sizeof(struct host_if_msg)); -- cgit v0.10.2 From c92a869e6170c06219ca550a0e87fbefaa92a30b Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:48 +0900 Subject: staging: wilc1000: removes typedef of struct struct_frame_reg This patch removes typedef of struct struct_frame_reg. Renames the struct_frame_reg to frame_reg as well. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h index 4123cff..f394484 100644 --- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h +++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h @@ -139,18 +139,17 @@ struct wilc_priv { }; -typedef struct { +struct frame_reg { u16 frame_type; bool reg; - -} struct_frame_reg; +}; struct wilc_vif { u8 idx; u8 iftype; int monitor_flag; int mac_opened; - struct_frame_reg g_struct_frame_reg[num_reg_frame]; + struct frame_reg g_struct_frame_reg[num_reg_frame]; struct net_device_stats netstats; struct wilc *wilc; u8 src_addr[ETH_ALEN]; -- cgit v0.10.2 From 89febb21c4ca25030c75ba5a7cb64fe02c2cb156 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:49 +0900 Subject: staging: wilc1000: replaces g_struct_frame_reg with frame_reg This patch replaces g_struct_frame_reg with frame_reg. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index e949f21..2f830cd 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -966,12 +966,12 @@ int wilc_mac_open(struct net_device *ndev) wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy, vif->ndev->ieee80211_ptr, - vif->g_struct_frame_reg[0].frame_type, - vif->g_struct_frame_reg[0].reg); + vif->frame_reg[0].frame_type, + vif->frame_reg[0].reg); wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy, vif->ndev->ieee80211_ptr, - vif->g_struct_frame_reg[1].frame_type, - vif->g_struct_frame_reg[1].reg); + vif->frame_reg[1].frame_type, + vif->frame_reg[1].reg); netif_wake_queue(ndev); wl->open_ifcs++; vif->mac_opened = 1; @@ -1260,8 +1260,8 @@ void WILC_WFI_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size) } vif = netdev_priv(wilc->vif[1]->ndev); - if ((buff[0] == vif->g_struct_frame_reg[0].frame_type && vif->g_struct_frame_reg[0].reg) || - (buff[0] == vif->g_struct_frame_reg[1].frame_type && vif->g_struct_frame_reg[1].reg)) + if ((buff[0] == vif->frame_reg[0].frame_type && vif->frame_reg[0].reg) || + (buff[0] == vif->frame_reg[1].frame_type && vif->frame_reg[1].reg)) WILC_WFI_p2p_rx(wilc->vif[1]->ndev, buff, size); } diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 70625f8..3e0ffee 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -1745,15 +1745,15 @@ void wilc_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, switch (frame_type) { case PROBE_REQ: { - vif->g_struct_frame_reg[0].frame_type = frame_type; - vif->g_struct_frame_reg[0].reg = reg; + vif->frame_reg[0].frame_type = frame_type; + vif->frame_reg[0].reg = reg; } break; case ACTION: { - vif->g_struct_frame_reg[1].frame_type = frame_type; - vif->g_struct_frame_reg[1].reg = reg; + vif->frame_reg[1].frame_type = frame_type; + vif->frame_reg[1].reg = reg; } break; diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h index f394484..3abe481 100644 --- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h +++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h @@ -149,7 +149,7 @@ struct wilc_vif { u8 iftype; int monitor_flag; int mac_opened; - struct frame_reg g_struct_frame_reg[num_reg_frame]; + struct frame_reg frame_reg[num_reg_frame]; struct net_device_stats netstats; struct wilc *wilc; u8 src_addr[ETH_ALEN]; -- cgit v0.10.2 From 340a84ff96c4d9effbc841a085e2101c3977e5cf Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:50 +0900 Subject: staging: wilc1000: replaces frame_type with type of struct frame_reg This patch replaces frame_type with type of struct frame_reg. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 2f830cd..760d44d1 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -966,11 +966,11 @@ int wilc_mac_open(struct net_device *ndev) wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy, vif->ndev->ieee80211_ptr, - vif->frame_reg[0].frame_type, + vif->frame_reg[0].type, vif->frame_reg[0].reg); wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy, vif->ndev->ieee80211_ptr, - vif->frame_reg[1].frame_type, + vif->frame_reg[1].type, vif->frame_reg[1].reg); netif_wake_queue(ndev); wl->open_ifcs++; @@ -1260,8 +1260,8 @@ void WILC_WFI_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size) } vif = netdev_priv(wilc->vif[1]->ndev); - if ((buff[0] == vif->frame_reg[0].frame_type && vif->frame_reg[0].reg) || - (buff[0] == vif->frame_reg[1].frame_type && vif->frame_reg[1].reg)) + if ((buff[0] == vif->frame_reg[0].type && vif->frame_reg[0].reg) || + (buff[0] == vif->frame_reg[1].type && vif->frame_reg[1].reg)) WILC_WFI_p2p_rx(wilc->vif[1]->ndev, buff, size); } diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 3e0ffee..5785dda 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -1745,14 +1745,14 @@ void wilc_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, switch (frame_type) { case PROBE_REQ: { - vif->frame_reg[0].frame_type = frame_type; + vif->frame_reg[0].type = frame_type; vif->frame_reg[0].reg = reg; } break; case ACTION: { - vif->frame_reg[1].frame_type = frame_type; + vif->frame_reg[1].type = frame_type; vif->frame_reg[1].reg = reg; } break; diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h index 3abe481..debb139 100644 --- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h +++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h @@ -140,7 +140,7 @@ struct wilc_priv { }; struct frame_reg { - u16 frame_type; + u16 type; bool reg; }; -- cgit v0.10.2 From 5510730d5f95a37e9de29597e8e7328103bbaf60 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:51 +0900 Subject: staging: wilc1000: removes unused dead codes This patch removes unused dead codes that define custom feature. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 760d44d1..db624ef 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -691,14 +691,6 @@ void wilc1000_wlan_deinit(struct net_device *dev) wilc_wlan_stop(wl); wilc_wlan_cleanup(dev); -#if defined(PLAT_ALLWINNER_A20) || defined(PLAT_ALLWINNER_A23) || defined(PLAT_ALLWINNER_A31) - if (!wl->dev_irq_num && - wl->hif_func->disable_interrupt) { - mutex_lock(&wl->hif_cs); - wl->hif_func->disable_interrupt(wl); - mutex_unlock(&wl->hif_cs); - } -#endif wlan_deinit_locks(dev); wl->initialized = false; -- cgit v0.10.2 From e944ad751ff4fbbd0278ba4dd8595bf7fa3c7e9e Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:52 +0900 Subject: staging: wilc1000: removes unused debug flags This patch removes unused debug flags. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wlan_if.h b/drivers/staging/wilc1000/wilc_wlan_if.h index 83cf84d..119b313 100644 --- a/drivers/staging/wilc1000/wilc_wlan_if.h +++ b/drivers/staging/wilc1000/wilc_wlan_if.h @@ -15,18 +15,6 @@ /******************************************** * - * Debug Flags - * - ********************************************/ - -#define N_INIT 0x00000001 -#define N_ERR 0x00000002 -#define N_TXQ 0x00000004 -#define N_INTR 0x00000008 -#define N_RXQ 0x00000010 - -/******************************************** - * * Host Interface Defines * ********************************************/ -- cgit v0.10.2 From fa63394152e9675c6d9ce32e57fbe00094efb4b8 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:53 +0900 Subject: staging: wilc1000: replaces memcmp with ether_addr_equal_unaligned This patch replaces memcmp with ether_addr_equal_unaligned. Warning reported by checkpatch.pl - Prefer ether_addr_equal() or ether_addr_equal_unaligned() over memcmp() Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index db624ef..8f0a74d 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -259,10 +259,12 @@ static struct net_device *get_if_handler(struct wilc *wilc, u8 *mac_header) for (i = 0; i < wilc->vif_num; i++) { if (wilc->vif[i]->mode == STATION_MODE) - if (!memcmp(bssid, wilc->vif[i]->bssid, ETH_ALEN)) + if (ether_addr_equal_unaligned(bssid, + wilc->vif[i]->bssid)) return wilc->vif[i]->ndev; if (wilc->vif[i]->mode == AP_MODE) - if (!memcmp(bssid1, wilc->vif[i]->bssid, ETH_ALEN)) + if (ether_addr_equal_unaligned(bssid1, + wilc->vif[i]->bssid)) return wilc->vif[i]->ndev; } -- cgit v0.10.2 From 7632d9b1a073834df3f3b1d59b9159d9fe5b5419 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:54 +0900 Subject: staging: wilc1000: removes unused define This patch removes unused define. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 8f0a74d..127a967 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -30,8 +30,6 @@ static struct notifier_block g_dev_notifier = { .notifier_call = dev_state_ev_handler }; -#define IRQ_WAIT 1 -#define IRQ_NO_WAIT 0 static struct semaphore close_exit_sync; static int wlan_deinit_locks(struct net_device *dev); diff --git a/drivers/staging/wilc1000/wilc_wlan_if.h b/drivers/staging/wilc1000/wilc_wlan_if.h index 119b313..410bfc0 100644 --- a/drivers/staging/wilc1000/wilc_wlan_if.h +++ b/drivers/staging/wilc1000/wilc_wlan_if.h @@ -25,15 +25,6 @@ /******************************************** * - * Tx/Rx Buffer Size Defines - * - ********************************************/ - -#define CE_TX_BUFFER_SIZE (64 * 1024) -#define CE_RX_BUFFER_SIZE (384 * 1024) - -/******************************************** - * * Wlan Interface Defines * ********************************************/ -- cgit v0.10.2 From 847109fc0f4e5f703107492684de1943069f4530 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:55 +0900 Subject: staging: wilc1000: removes define USE_TX_BACKOFF_DELAY_IF_NO_BUFFERS This patch removes define USE_TX_BACKOFF_DELAY_IF_NO_BUFFERS and use it's feature codes. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 127a967..fae03e8 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -303,22 +303,18 @@ int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc) return ret_val; } -#define USE_TX_BACKOFF_DELAY_IF_NO_BUFFERS - static int linux_wlan_txq_task(void *vp) { int ret, txq_count; struct wilc_vif *vif; struct wilc *wl; struct net_device *dev = vp; -#if defined USE_TX_BACKOFF_DELAY_IF_NO_BUFFERS #define TX_BACKOFF_WEIGHT_INCR_STEP (1) #define TX_BACKOFF_WEIGHT_DECR_STEP (1) #define TX_BACKOFF_WEIGHT_MAX (7) #define TX_BACKOFF_WEIGHT_MIN (0) #define TX_BACKOFF_WEIGHT_UNIT_MS (10) int backoff_weight = TX_BACKOFF_WEIGHT_MIN; -#endif vif = netdev_priv(dev); wl = vif->wilc; @@ -334,9 +330,6 @@ static int linux_wlan_txq_task(void *vp) schedule(); break; } -#if !defined USE_TX_BACKOFF_DELAY_IF_NO_BUFFERS - ret = wilc_wlan_handle_txq(dev, &txq_count); -#else do { ret = wilc_wlan_handle_txq(dev, &txq_count); if (txq_count < FLOW_CONTROL_LOWER_THRESHOLD) { @@ -358,7 +351,6 @@ static int linux_wlan_txq_task(void *vp) } } } while (ret == WILC_TX_ERR_NO_BUF && !wl->close); -#endif } return 0; } -- cgit v0.10.2 From 8dc5fb4e0eb8802ff0615b0fde92f43f3bd5d56d Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 25 Mar 2016 21:16:56 +0900 Subject: staging: wilc1000: removes unused local variable This patch removes unused local variable. This variable is operation definition that back off from sending packets for some time. However, that has been deleted operation code. That is removes all relative code. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index fae03e8..a858552 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -309,12 +309,6 @@ static int linux_wlan_txq_task(void *vp) struct wilc_vif *vif; struct wilc *wl; struct net_device *dev = vp; -#define TX_BACKOFF_WEIGHT_INCR_STEP (1) -#define TX_BACKOFF_WEIGHT_DECR_STEP (1) -#define TX_BACKOFF_WEIGHT_MAX (7) -#define TX_BACKOFF_WEIGHT_MIN (0) -#define TX_BACKOFF_WEIGHT_UNIT_MS (10) - int backoff_weight = TX_BACKOFF_WEIGHT_MIN; vif = netdev_priv(dev); wl = vif->wilc; @@ -338,18 +332,6 @@ static int linux_wlan_txq_task(void *vp) if (netif_queue_stopped(wl->vif[1]->ndev)) netif_wake_queue(wl->vif[1]->ndev); } - - if (ret == WILC_TX_ERR_NO_BUF) { - backoff_weight += TX_BACKOFF_WEIGHT_INCR_STEP; - if (backoff_weight > TX_BACKOFF_WEIGHT_MAX) - backoff_weight = TX_BACKOFF_WEIGHT_MAX; - } else { - if (backoff_weight > TX_BACKOFF_WEIGHT_MIN) { - backoff_weight -= TX_BACKOFF_WEIGHT_DECR_STEP; - if (backoff_weight < TX_BACKOFF_WEIGHT_MIN) - backoff_weight = TX_BACKOFF_WEIGHT_MIN; - } - } } while (ret == WILC_TX_ERR_NO_BUF && !wl->close); } return 0; -- cgit v0.10.2 From 22acd860137ad6952fec8f6041efa9a30e49c22d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:11 -0700 Subject: staging: comedi: ni_660x: change IOConfigReg() into a macro The BUG_ON() in this function is unnecessary. The 'pfi_channel' will always be in range of the subdevice 'n_chan' (NUM_PFI_CHANNELS) which will return a valid 'reg'. Convert the inline function into a simple macro. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 46647c6..10db2ff 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -156,13 +156,7 @@ enum ni_660x_register { NI660X_NUM_REGS, }; -static inline unsigned IOConfigReg(unsigned pfi_channel) -{ - unsigned reg = NI660X_IO_CFG_0_1 + pfi_channel / 2; - - BUG_ON(reg > NI660X_IO_CFG_38_39); - return reg; -} +#define NI660X_IO_CFG(x) (NI660X_IO_CFG_0_1 + ((x) / 2)) enum ni_660x_register_width { DATA_1B, @@ -893,7 +887,7 @@ static void init_tio_chip(struct comedi_device *dev, int chipset) devpriv->dma_configuration_soft_copies[chipset], NI660X_DMA_CFG); for (i = 0; i < NUM_PFI_CHANNELS; ++i) - ni_660x_write_register(dev, chipset, 0, IOConfigReg(i)); + ni_660x_write_register(dev, chipset, 0, NI660X_IO_CFG(i)); } static int ni_660x_dio_insn_bits(struct comedi_device *dev, @@ -944,22 +938,22 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, if (idle_chipset != active_chipset) { idle_bits = ni_660x_read_register(dev, idle_chipset, - IOConfigReg(pfi_channel)); + NI660X_IO_CFG(pfi_channel)); idle_bits &= ~pfi_output_select_mask(pfi_channel); idle_bits |= pfi_output_select_bits(pfi_channel, pfi_output_select_high_Z); ni_660x_write_register(dev, idle_chipset, idle_bits, - IOConfigReg(pfi_channel)); + NI660X_IO_CFG(pfi_channel)); } active_bits = ni_660x_read_register(dev, active_chipset, - IOConfigReg(pfi_channel)); + NI660X_IO_CFG(pfi_channel)); active_bits &= ~pfi_output_select_mask(pfi_channel); active_bits |= pfi_output_select_bits(pfi_channel, output_select); ni_660x_write_register(dev, active_chipset, active_bits, - IOConfigReg(pfi_channel)); + NI660X_IO_CFG(pfi_channel)); } static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned chan, @@ -1025,10 +1019,10 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, break; case INSN_CONFIG_FILTER: - val = ni_660x_read_register(dev, 0, IOConfigReg(chan)); + val = ni_660x_read_register(dev, 0, NI660X_IO_CFG(chan)); val &= ~pfi_input_select_mask(chan); val |= pfi_input_select_bits(chan, data[1]); - ni_660x_write_register(dev, 0, val, IOConfigReg(chan)); + ni_660x_write_register(dev, 0, val, NI660X_IO_CFG(chan)); break; default: -- cgit v0.10.2 From f9565977bf488bd4bf9ef7322728970c20bbc908 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:12 -0700 Subject: staging: comedi: ni_660x: remove struct NI_660xRegisterData 'name' This member of the struct is not used, and just takes up space. Remove it. Instead, add the enum ni_660x_register indexes to the table to clarify, and document, the entries. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 10db2ff..10bb839 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -187,111 +187,110 @@ static inline unsigned NI_660X_GPCT_SUBDEV(unsigned index) } struct NI_660xRegisterData { - const char *name; /* Register Name */ int offset; /* Offset from base address from GPCT chip */ enum ni_660x_register_direction direction; enum ni_660x_register_width size; /* 1 byte, 2 bytes, or 4 bytes */ }; static const struct NI_660xRegisterData registerData[NI660X_NUM_REGS] = { - {"G0 Interrupt Acknowledge", 0x004, NI_660x_WRITE, DATA_2B}, - {"G0 Status Register", 0x004, NI_660x_READ, DATA_2B}, - {"G1 Interrupt Acknowledge", 0x006, NI_660x_WRITE, DATA_2B}, - {"G1 Status Register", 0x006, NI_660x_READ, DATA_2B}, - {"G01 Status Register ", 0x008, NI_660x_READ, DATA_2B}, - {"G0 Command Register", 0x00C, NI_660x_WRITE, DATA_2B}, - {"STC DIO Parallel Input", 0x00E, NI_660x_READ, DATA_2B}, - {"G1 Command Register", 0x00E, NI_660x_WRITE, DATA_2B}, - {"G0 HW Save Register", 0x010, NI_660x_READ, DATA_4B}, - {"G1 HW Save Register", 0x014, NI_660x_READ, DATA_4B}, - {"STC DIO Output", 0x014, NI_660x_WRITE, DATA_2B}, - {"STC DIO Control", 0x016, NI_660x_WRITE, DATA_2B}, - {"G0 SW Save Register", 0x018, NI_660x_READ, DATA_4B}, - {"G1 SW Save Register", 0x01C, NI_660x_READ, DATA_4B}, - {"G0 Mode Register", 0x034, NI_660x_WRITE, DATA_2B}, - {"G01 Joint Status 1 Register", 0x036, NI_660x_READ, DATA_2B}, - {"G1 Mode Register", 0x036, NI_660x_WRITE, DATA_2B}, - {"STC DIO Serial Input", 0x038, NI_660x_READ, DATA_2B}, - {"G0 Load A Register", 0x038, NI_660x_WRITE, DATA_4B}, - {"G01 Joint Status 2 Register", 0x03A, NI_660x_READ, DATA_2B}, - {"G0 Load B Register", 0x03C, NI_660x_WRITE, DATA_4B}, - {"G1 Load A Register", 0x040, NI_660x_WRITE, DATA_4B}, - {"G1 Load B Register", 0x044, NI_660x_WRITE, DATA_4B}, - {"G0 Input Select Register", 0x048, NI_660x_WRITE, DATA_2B}, - {"G1 Input Select Register", 0x04A, NI_660x_WRITE, DATA_2B}, - {"G0 Autoincrement Register", 0x088, NI_660x_WRITE, DATA_2B}, - {"G1 Autoincrement Register", 0x08A, NI_660x_WRITE, DATA_2B}, - {"G01 Joint Reset Register", 0x090, NI_660x_WRITE, DATA_2B}, - {"G0 Interrupt Enable", 0x092, NI_660x_WRITE, DATA_2B}, - {"G1 Interrupt Enable", 0x096, NI_660x_WRITE, DATA_2B}, - {"G0 Counting Mode Register", 0x0B0, NI_660x_WRITE, DATA_2B}, - {"G1 Counting Mode Register", 0x0B2, NI_660x_WRITE, DATA_2B}, - {"G0 Second Gate Register", 0x0B4, NI_660x_WRITE, DATA_2B}, - {"G1 Second Gate Register", 0x0B6, NI_660x_WRITE, DATA_2B}, - {"G0 DMA Config Register", 0x0B8, NI_660x_WRITE, DATA_2B}, - {"G0 DMA Status Register", 0x0B8, NI_660x_READ, DATA_2B}, - {"G1 DMA Config Register", 0x0BA, NI_660x_WRITE, DATA_2B}, - {"G1 DMA Status Register", 0x0BA, NI_660x_READ, DATA_2B}, - {"G2 Interrupt Acknowledge", 0x104, NI_660x_WRITE, DATA_2B}, - {"G2 Status Register", 0x104, NI_660x_READ, DATA_2B}, - {"G3 Interrupt Acknowledge", 0x106, NI_660x_WRITE, DATA_2B}, - {"G3 Status Register", 0x106, NI_660x_READ, DATA_2B}, - {"G23 Status Register", 0x108, NI_660x_READ, DATA_2B}, - {"G2 Command Register", 0x10C, NI_660x_WRITE, DATA_2B}, - {"G3 Command Register", 0x10E, NI_660x_WRITE, DATA_2B}, - {"G2 HW Save Register", 0x110, NI_660x_READ, DATA_4B}, - {"G3 HW Save Register", 0x114, NI_660x_READ, DATA_4B}, - {"G2 SW Save Register", 0x118, NI_660x_READ, DATA_4B}, - {"G3 SW Save Register", 0x11C, NI_660x_READ, DATA_4B}, - {"G2 Mode Register", 0x134, NI_660x_WRITE, DATA_2B}, - {"G23 Joint Status 1 Register", 0x136, NI_660x_READ, DATA_2B}, - {"G3 Mode Register", 0x136, NI_660x_WRITE, DATA_2B}, - {"G2 Load A Register", 0x138, NI_660x_WRITE, DATA_4B}, - {"G23 Joint Status 2 Register", 0x13A, NI_660x_READ, DATA_2B}, - {"G2 Load B Register", 0x13C, NI_660x_WRITE, DATA_4B}, - {"G3 Load A Register", 0x140, NI_660x_WRITE, DATA_4B}, - {"G3 Load B Register", 0x144, NI_660x_WRITE, DATA_4B}, - {"G2 Input Select Register", 0x148, NI_660x_WRITE, DATA_2B}, - {"G3 Input Select Register", 0x14A, NI_660x_WRITE, DATA_2B}, - {"G2 Autoincrement Register", 0x188, NI_660x_WRITE, DATA_2B}, - {"G3 Autoincrement Register", 0x18A, NI_660x_WRITE, DATA_2B}, - {"G23 Joint Reset Register", 0x190, NI_660x_WRITE, DATA_2B}, - {"G2 Interrupt Enable", 0x192, NI_660x_WRITE, DATA_2B}, - {"G3 Interrupt Enable", 0x196, NI_660x_WRITE, DATA_2B}, - {"G2 Counting Mode Register", 0x1B0, NI_660x_WRITE, DATA_2B}, - {"G3 Counting Mode Register", 0x1B2, NI_660x_WRITE, DATA_2B}, - {"G3 Second Gate Register", 0x1B6, NI_660x_WRITE, DATA_2B}, - {"G2 Second Gate Register", 0x1B4, NI_660x_WRITE, DATA_2B}, - {"G2 DMA Config Register", 0x1B8, NI_660x_WRITE, DATA_2B}, - {"G2 DMA Status Register", 0x1B8, NI_660x_READ, DATA_2B}, - {"G3 DMA Config Register", 0x1BA, NI_660x_WRITE, DATA_2B}, - {"G3 DMA Status Register", 0x1BA, NI_660x_READ, DATA_2B}, - {"32 bit Digital Input", 0x414, NI_660x_READ, DATA_4B}, - {"32 bit Digital Output", 0x510, NI_660x_WRITE, DATA_4B}, - {"Clock Config Register", 0x73C, NI_660x_WRITE, DATA_4B}, - {"Global Interrupt Status Register", 0x754, NI_660x_READ, DATA_4B}, - {"DMA Configuration Register", 0x76C, NI_660x_WRITE, DATA_4B}, - {"Global Interrupt Config Register", 0x770, NI_660x_WRITE, DATA_4B}, - {"IO Config Register 0-1", 0x77C, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 2-3", 0x77E, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 4-5", 0x780, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 6-7", 0x782, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 8-9", 0x784, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 10-11", 0x786, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 12-13", 0x788, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 14-15", 0x78A, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 16-17", 0x78C, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 18-19", 0x78E, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 20-21", 0x790, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 22-23", 0x792, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 24-25", 0x794, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 26-27", 0x796, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 28-29", 0x798, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 30-31", 0x79A, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 32-33", 0x79C, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 34-35", 0x79E, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 36-37", 0x7A0, NI_660x_READ_WRITE, DATA_2B}, - {"IO Config Register 38-39", 0x7A2, NI_660x_READ_WRITE, DATA_2B} + [NI660X_G0_INT_ACK] = {0x004, NI_660x_WRITE, DATA_2B}, + [NI660X_G0_STATUS] = {0x004, NI_660x_READ, DATA_2B}, + [NI660X_G1_INT_ACK] = {0x006, NI_660x_WRITE, DATA_2B}, + [NI660X_G1_STATUS] = {0x006, NI_660x_READ, DATA_2B}, + [NI660X_G01_STATUS] = {0x008, NI_660x_READ, DATA_2B}, + [NI660X_G0_CMD] = {0x00c, NI_660x_WRITE, DATA_2B}, + [NI660X_STC_DIO_PARALLEL_INPUT] = {0x00e, NI_660x_READ, DATA_2B}, + [NI660X_G1_CMD] = {0x00e, NI_660x_WRITE, DATA_2B}, + [NI660X_G0_HW_SAVE] = {0x010, NI_660x_READ, DATA_4B}, + [NI660X_G1_HW_SAVE] = {0x014, NI_660x_READ, DATA_4B}, + [NI660X_STC_DIO_OUTPUT] = {0x014, NI_660x_WRITE, DATA_2B}, + [NI660X_STC_DIO_CONTROL] = {0x016, NI_660x_WRITE, DATA_2B}, + [NI660X_G0_SW_SAVE] = {0x018, NI_660x_READ, DATA_4B}, + [NI660X_G1_SW_SAVE] = {0x01c, NI_660x_READ, DATA_4B}, + [NI660X_G0_MODE] = {0x034, NI_660x_WRITE, DATA_2B}, + [NI660X_G01_STATUS1] = {0x036, NI_660x_READ, DATA_2B}, + [NI660X_G1_MODE] = {0x036, NI_660x_WRITE, DATA_2B}, + [NI660X_STC_DIO_SERIAL_INPUT] = {0x038, NI_660x_READ, DATA_2B}, + [NI660X_G0_LOADA] = {0x038, NI_660x_WRITE, DATA_4B}, + [NI660X_G01_STATUS2] = {0x03a, NI_660x_READ, DATA_2B}, + [NI660X_G0_LOADB] = {0x03c, NI_660x_WRITE, DATA_4B}, + [NI660X_G1_LOADA] = {0x040, NI_660x_WRITE, DATA_4B}, + [NI660X_G1_LOADB] = {0x044, NI_660x_WRITE, DATA_4B}, + [NI660X_G0_INPUT_SEL] = {0x048, NI_660x_WRITE, DATA_2B}, + [NI660X_G1_INPUT_SEL] = {0x04a, NI_660x_WRITE, DATA_2B}, + [NI660X_G0_AUTO_INC] = {0x088, NI_660x_WRITE, DATA_2B}, + [NI660X_G1_AUTO_INC] = {0x08a, NI_660x_WRITE, DATA_2B}, + [NI660X_G01_RESET] = {0x090, NI_660x_WRITE, DATA_2B}, + [NI660X_G0_INT_ENA] = {0x092, NI_660x_WRITE, DATA_2B}, + [NI660X_G1_INT_ENA] = {0x096, NI_660x_WRITE, DATA_2B}, + [NI660X_G0_CNT_MODE] = {0x0b0, NI_660x_WRITE, DATA_2B}, + [NI660X_G1_CNT_MODE] = {0x0b2, NI_660x_WRITE, DATA_2B}, + [NI660X_G0_GATE2] = {0x0b4, NI_660x_WRITE, DATA_2B}, + [NI660X_G1_GATE2] = {0x0b6, NI_660x_WRITE, DATA_2B}, + [NI660X_G0_DMA_CFG] = {0x0b8, NI_660x_WRITE, DATA_2B}, + [NI660X_G0_DMA_STATUS] = {0x0b8, NI_660x_READ, DATA_2B}, + [NI660X_G1_DMA_CFG] = {0x0ba, NI_660x_WRITE, DATA_2B}, + [NI660X_G1_DMA_STATUS] = {0x0ba, NI_660x_READ, DATA_2B}, + [NI660X_G2_INT_ACK] = {0x104, NI_660x_WRITE, DATA_2B}, + [NI660X_G2_STATUS] = {0x104, NI_660x_READ, DATA_2B}, + [NI660X_G3_INT_ACK] = {0x106, NI_660x_WRITE, DATA_2B}, + [NI660X_G3_STATUS] = {0x106, NI_660x_READ, DATA_2B}, + [NI660X_G23_STATUS] = {0x108, NI_660x_READ, DATA_2B}, + [NI660X_G2_CMD] = {0x10c, NI_660x_WRITE, DATA_2B}, + [NI660X_G3_CMD] = {0x10e, NI_660x_WRITE, DATA_2B}, + [NI660X_G2_HW_SAVE] = {0x110, NI_660x_READ, DATA_4B}, + [NI660X_G3_HW_SAVE] = {0x114, NI_660x_READ, DATA_4B}, + [NI660X_G2_SW_SAVE] = {0x118, NI_660x_READ, DATA_4B}, + [NI660X_G3_SW_SAVE] = {0x11c, NI_660x_READ, DATA_4B}, + [NI660X_G2_MODE] = {0x134, NI_660x_WRITE, DATA_2B}, + [NI660X_G23_STATUS1] = {0x136, NI_660x_READ, DATA_2B}, + [NI660X_G3_MODE] = {0x136, NI_660x_WRITE, DATA_2B}, + [NI660X_G2_LOADA] = {0x138, NI_660x_WRITE, DATA_4B}, + [NI660X_G23_STATUS2] = {0x13a, NI_660x_READ, DATA_2B}, + [NI660X_G2_LOADB] = {0x13c, NI_660x_WRITE, DATA_4B}, + [NI660X_G3_LOADA] = {0x140, NI_660x_WRITE, DATA_4B}, + [NI660X_G3_LOADB] = {0x144, NI_660x_WRITE, DATA_4B}, + [NI660X_G2_INPUT_SEL] = {0x148, NI_660x_WRITE, DATA_2B}, + [NI660X_G3_INPUT_SEL] = {0x14a, NI_660x_WRITE, DATA_2B}, + [NI660X_G2_AUTO_INC] = {0x188, NI_660x_WRITE, DATA_2B}, + [NI660X_G3_AUTO_INC] = {0x18a, NI_660x_WRITE, DATA_2B}, + [NI660X_G23_RESET] = {0x190, NI_660x_WRITE, DATA_2B}, + [NI660X_G2_INT_ENA] = {0x192, NI_660x_WRITE, DATA_2B}, + [NI660X_G3_INT_ENA] = {0x196, NI_660x_WRITE, DATA_2B}, + [NI660X_G2_CNT_MODE] = {0x1b0, NI_660x_WRITE, DATA_2B}, + [NI660X_G3_CNT_MODE] = {0x1b2, NI_660x_WRITE, DATA_2B}, + [NI660X_G3_GATE2] = {0x1b6, NI_660x_WRITE, DATA_2B}, + [NI660X_G2_GATE2] = {0x1b4, NI_660x_WRITE, DATA_2B}, + [NI660X_G2_DMA_CFG] = {0x1b8, NI_660x_WRITE, DATA_2B}, + [NI660X_G2_DMA_STATUS] = {0x1b8, NI_660x_READ, DATA_2B}, + [NI660X_G3_DMA_CFG] = {0x1ba, NI_660x_WRITE, DATA_2B}, + [NI660X_G3_DMA_STATUS] = {0x1ba, NI_660x_READ, DATA_2B}, + [NI660X_DIO32_INPUT] = {0x414, NI_660x_READ, DATA_4B}, + [NI660X_DIO32_OUTPUT] = {0x510, NI_660x_WRITE, DATA_4B}, + [NI660X_CLK_CFG] = {0x73c, NI_660x_WRITE, DATA_4B}, + [NI660X_GLOBAL_INT_STATUS] = {0x754, NI_660x_READ, DATA_4B}, + [NI660X_DMA_CFG] = {0x76c, NI_660x_WRITE, DATA_4B}, + [NI660X_GLOBAL_INT_CFG] = {0x770, NI_660x_WRITE, DATA_4B}, + [NI660X_IO_CFG_0_1] = {0x77c, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_2_3] = {0x77e, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_4_5] = {0x780, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_6_7] = {0x782, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_8_9] = {0x784, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_10_11] = {0x786, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_12_13] = {0x788, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_14_15] = {0x78a, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_16_17] = {0x78c, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_18_19] = {0x78e, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_20_21] = {0x790, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_22_23] = {0x792, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_24_25] = {0x794, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_26_27] = {0x796, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_28_29] = {0x798, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_30_31] = {0x79a, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_32_33] = {0x79c, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_34_35] = {0x79e, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_36_37] = {0x7a0, NI_660x_READ_WRITE, DATA_2B}, + [NI660X_IO_CFG_38_39] = {0x7a2, NI_660x_READ_WRITE, DATA_2B} }; /* kind of ENABLE for the second counter */ -- cgit v0.10.2 From 87090141749ad320d937375dcec6d5b925f728c7 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:13 -0700 Subject: staging: comedi: ni_660x: remove enum ni_register_width All the registers are defined struct NI_660xRegisterData and they are either 2 or 4 bytes in size. Remove the enum and just use a char member to define the size as 2 or 4 bytes. Simplify the ni_660x_{write,read}_register() functions and remove the unnecessary BUG() in each. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 10bb839..dbbeb96 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -158,12 +158,6 @@ enum ni_660x_register { #define NI660X_IO_CFG(x) (NI660X_IO_CFG_0_1 + ((x) / 2)) -enum ni_660x_register_width { - DATA_1B, - DATA_2B, - DATA_4B -}; - enum ni_660x_register_direction { NI_660x_READ, NI_660x_WRITE, @@ -189,108 +183,108 @@ static inline unsigned NI_660X_GPCT_SUBDEV(unsigned index) struct NI_660xRegisterData { int offset; /* Offset from base address from GPCT chip */ enum ni_660x_register_direction direction; - enum ni_660x_register_width size; /* 1 byte, 2 bytes, or 4 bytes */ + char size; /* 2 or 4 bytes */ }; static const struct NI_660xRegisterData registerData[NI660X_NUM_REGS] = { - [NI660X_G0_INT_ACK] = {0x004, NI_660x_WRITE, DATA_2B}, - [NI660X_G0_STATUS] = {0x004, NI_660x_READ, DATA_2B}, - [NI660X_G1_INT_ACK] = {0x006, NI_660x_WRITE, DATA_2B}, - [NI660X_G1_STATUS] = {0x006, NI_660x_READ, DATA_2B}, - [NI660X_G01_STATUS] = {0x008, NI_660x_READ, DATA_2B}, - [NI660X_G0_CMD] = {0x00c, NI_660x_WRITE, DATA_2B}, - [NI660X_STC_DIO_PARALLEL_INPUT] = {0x00e, NI_660x_READ, DATA_2B}, - [NI660X_G1_CMD] = {0x00e, NI_660x_WRITE, DATA_2B}, - [NI660X_G0_HW_SAVE] = {0x010, NI_660x_READ, DATA_4B}, - [NI660X_G1_HW_SAVE] = {0x014, NI_660x_READ, DATA_4B}, - [NI660X_STC_DIO_OUTPUT] = {0x014, NI_660x_WRITE, DATA_2B}, - [NI660X_STC_DIO_CONTROL] = {0x016, NI_660x_WRITE, DATA_2B}, - [NI660X_G0_SW_SAVE] = {0x018, NI_660x_READ, DATA_4B}, - [NI660X_G1_SW_SAVE] = {0x01c, NI_660x_READ, DATA_4B}, - [NI660X_G0_MODE] = {0x034, NI_660x_WRITE, DATA_2B}, - [NI660X_G01_STATUS1] = {0x036, NI_660x_READ, DATA_2B}, - [NI660X_G1_MODE] = {0x036, NI_660x_WRITE, DATA_2B}, - [NI660X_STC_DIO_SERIAL_INPUT] = {0x038, NI_660x_READ, DATA_2B}, - [NI660X_G0_LOADA] = {0x038, NI_660x_WRITE, DATA_4B}, - [NI660X_G01_STATUS2] = {0x03a, NI_660x_READ, DATA_2B}, - [NI660X_G0_LOADB] = {0x03c, NI_660x_WRITE, DATA_4B}, - [NI660X_G1_LOADA] = {0x040, NI_660x_WRITE, DATA_4B}, - [NI660X_G1_LOADB] = {0x044, NI_660x_WRITE, DATA_4B}, - [NI660X_G0_INPUT_SEL] = {0x048, NI_660x_WRITE, DATA_2B}, - [NI660X_G1_INPUT_SEL] = {0x04a, NI_660x_WRITE, DATA_2B}, - [NI660X_G0_AUTO_INC] = {0x088, NI_660x_WRITE, DATA_2B}, - [NI660X_G1_AUTO_INC] = {0x08a, NI_660x_WRITE, DATA_2B}, - [NI660X_G01_RESET] = {0x090, NI_660x_WRITE, DATA_2B}, - [NI660X_G0_INT_ENA] = {0x092, NI_660x_WRITE, DATA_2B}, - [NI660X_G1_INT_ENA] = {0x096, NI_660x_WRITE, DATA_2B}, - [NI660X_G0_CNT_MODE] = {0x0b0, NI_660x_WRITE, DATA_2B}, - [NI660X_G1_CNT_MODE] = {0x0b2, NI_660x_WRITE, DATA_2B}, - [NI660X_G0_GATE2] = {0x0b4, NI_660x_WRITE, DATA_2B}, - [NI660X_G1_GATE2] = {0x0b6, NI_660x_WRITE, DATA_2B}, - [NI660X_G0_DMA_CFG] = {0x0b8, NI_660x_WRITE, DATA_2B}, - [NI660X_G0_DMA_STATUS] = {0x0b8, NI_660x_READ, DATA_2B}, - [NI660X_G1_DMA_CFG] = {0x0ba, NI_660x_WRITE, DATA_2B}, - [NI660X_G1_DMA_STATUS] = {0x0ba, NI_660x_READ, DATA_2B}, - [NI660X_G2_INT_ACK] = {0x104, NI_660x_WRITE, DATA_2B}, - [NI660X_G2_STATUS] = {0x104, NI_660x_READ, DATA_2B}, - [NI660X_G3_INT_ACK] = {0x106, NI_660x_WRITE, DATA_2B}, - [NI660X_G3_STATUS] = {0x106, NI_660x_READ, DATA_2B}, - [NI660X_G23_STATUS] = {0x108, NI_660x_READ, DATA_2B}, - [NI660X_G2_CMD] = {0x10c, NI_660x_WRITE, DATA_2B}, - [NI660X_G3_CMD] = {0x10e, NI_660x_WRITE, DATA_2B}, - [NI660X_G2_HW_SAVE] = {0x110, NI_660x_READ, DATA_4B}, - [NI660X_G3_HW_SAVE] = {0x114, NI_660x_READ, DATA_4B}, - [NI660X_G2_SW_SAVE] = {0x118, NI_660x_READ, DATA_4B}, - [NI660X_G3_SW_SAVE] = {0x11c, NI_660x_READ, DATA_4B}, - [NI660X_G2_MODE] = {0x134, NI_660x_WRITE, DATA_2B}, - [NI660X_G23_STATUS1] = {0x136, NI_660x_READ, DATA_2B}, - [NI660X_G3_MODE] = {0x136, NI_660x_WRITE, DATA_2B}, - [NI660X_G2_LOADA] = {0x138, NI_660x_WRITE, DATA_4B}, - [NI660X_G23_STATUS2] = {0x13a, NI_660x_READ, DATA_2B}, - [NI660X_G2_LOADB] = {0x13c, NI_660x_WRITE, DATA_4B}, - [NI660X_G3_LOADA] = {0x140, NI_660x_WRITE, DATA_4B}, - [NI660X_G3_LOADB] = {0x144, NI_660x_WRITE, DATA_4B}, - [NI660X_G2_INPUT_SEL] = {0x148, NI_660x_WRITE, DATA_2B}, - [NI660X_G3_INPUT_SEL] = {0x14a, NI_660x_WRITE, DATA_2B}, - [NI660X_G2_AUTO_INC] = {0x188, NI_660x_WRITE, DATA_2B}, - [NI660X_G3_AUTO_INC] = {0x18a, NI_660x_WRITE, DATA_2B}, - [NI660X_G23_RESET] = {0x190, NI_660x_WRITE, DATA_2B}, - [NI660X_G2_INT_ENA] = {0x192, NI_660x_WRITE, DATA_2B}, - [NI660X_G3_INT_ENA] = {0x196, NI_660x_WRITE, DATA_2B}, - [NI660X_G2_CNT_MODE] = {0x1b0, NI_660x_WRITE, DATA_2B}, - [NI660X_G3_CNT_MODE] = {0x1b2, NI_660x_WRITE, DATA_2B}, - [NI660X_G3_GATE2] = {0x1b6, NI_660x_WRITE, DATA_2B}, - [NI660X_G2_GATE2] = {0x1b4, NI_660x_WRITE, DATA_2B}, - [NI660X_G2_DMA_CFG] = {0x1b8, NI_660x_WRITE, DATA_2B}, - [NI660X_G2_DMA_STATUS] = {0x1b8, NI_660x_READ, DATA_2B}, - [NI660X_G3_DMA_CFG] = {0x1ba, NI_660x_WRITE, DATA_2B}, - [NI660X_G3_DMA_STATUS] = {0x1ba, NI_660x_READ, DATA_2B}, - [NI660X_DIO32_INPUT] = {0x414, NI_660x_READ, DATA_4B}, - [NI660X_DIO32_OUTPUT] = {0x510, NI_660x_WRITE, DATA_4B}, - [NI660X_CLK_CFG] = {0x73c, NI_660x_WRITE, DATA_4B}, - [NI660X_GLOBAL_INT_STATUS] = {0x754, NI_660x_READ, DATA_4B}, - [NI660X_DMA_CFG] = {0x76c, NI_660x_WRITE, DATA_4B}, - [NI660X_GLOBAL_INT_CFG] = {0x770, NI_660x_WRITE, DATA_4B}, - [NI660X_IO_CFG_0_1] = {0x77c, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_2_3] = {0x77e, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_4_5] = {0x780, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_6_7] = {0x782, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_8_9] = {0x784, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_10_11] = {0x786, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_12_13] = {0x788, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_14_15] = {0x78a, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_16_17] = {0x78c, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_18_19] = {0x78e, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_20_21] = {0x790, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_22_23] = {0x792, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_24_25] = {0x794, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_26_27] = {0x796, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_28_29] = {0x798, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_30_31] = {0x79a, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_32_33] = {0x79c, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_34_35] = {0x79e, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_36_37] = {0x7a0, NI_660x_READ_WRITE, DATA_2B}, - [NI660X_IO_CFG_38_39] = {0x7a2, NI_660x_READ_WRITE, DATA_2B} + [NI660X_G0_INT_ACK] = { 0x004, NI_660x_WRITE, 2 }, + [NI660X_G0_STATUS] = { 0x004, NI_660x_READ, 2 }, + [NI660X_G1_INT_ACK] = { 0x006, NI_660x_WRITE, 2 }, + [NI660X_G1_STATUS] = { 0x006, NI_660x_READ, 2 }, + [NI660X_G01_STATUS] = { 0x008, NI_660x_READ, 2 }, + [NI660X_G0_CMD] = { 0x00c, NI_660x_WRITE, 2 }, + [NI660X_STC_DIO_PARALLEL_INPUT] = { 0x00e, NI_660x_READ, 2 }, + [NI660X_G1_CMD] = { 0x00e, NI_660x_WRITE, 2 }, + [NI660X_G0_HW_SAVE] = { 0x010, NI_660x_READ, 4 }, + [NI660X_G1_HW_SAVE] = { 0x014, NI_660x_READ, 4 }, + [NI660X_STC_DIO_OUTPUT] = { 0x014, NI_660x_WRITE, 2 }, + [NI660X_STC_DIO_CONTROL] = { 0x016, NI_660x_WRITE, 2 }, + [NI660X_G0_SW_SAVE] = { 0x018, NI_660x_READ, 4 }, + [NI660X_G1_SW_SAVE] = { 0x01c, NI_660x_READ, 4 }, + [NI660X_G0_MODE] = { 0x034, NI_660x_WRITE, 2 }, + [NI660X_G01_STATUS1] = { 0x036, NI_660x_READ, 2 }, + [NI660X_G1_MODE] = { 0x036, NI_660x_WRITE, 2 }, + [NI660X_STC_DIO_SERIAL_INPUT] = { 0x038, NI_660x_READ, 2 }, + [NI660X_G0_LOADA] = { 0x038, NI_660x_WRITE, 4 }, + [NI660X_G01_STATUS2] = { 0x03a, NI_660x_READ, 2 }, + [NI660X_G0_LOADB] = { 0x03c, NI_660x_WRITE, 4 }, + [NI660X_G1_LOADA] = { 0x040, NI_660x_WRITE, 4 }, + [NI660X_G1_LOADB] = { 0x044, NI_660x_WRITE, 4 }, + [NI660X_G0_INPUT_SEL] = { 0x048, NI_660x_WRITE, 2 }, + [NI660X_G1_INPUT_SEL] = { 0x04a, NI_660x_WRITE, 2 }, + [NI660X_G0_AUTO_INC] = { 0x088, NI_660x_WRITE, 2 }, + [NI660X_G1_AUTO_INC] = { 0x08a, NI_660x_WRITE, 2 }, + [NI660X_G01_RESET] = { 0x090, NI_660x_WRITE, 2 }, + [NI660X_G0_INT_ENA] = { 0x092, NI_660x_WRITE, 2 }, + [NI660X_G1_INT_ENA] = { 0x096, NI_660x_WRITE, 2 }, + [NI660X_G0_CNT_MODE] = { 0x0b0, NI_660x_WRITE, 2 }, + [NI660X_G1_CNT_MODE] = { 0x0b2, NI_660x_WRITE, 2 }, + [NI660X_G0_GATE2] = { 0x0b4, NI_660x_WRITE, 2 }, + [NI660X_G1_GATE2] = { 0x0b6, NI_660x_WRITE, 2 }, + [NI660X_G0_DMA_CFG] = { 0x0b8, NI_660x_WRITE, 2 }, + [NI660X_G0_DMA_STATUS] = { 0x0b8, NI_660x_READ, 2 }, + [NI660X_G1_DMA_CFG] = { 0x0ba, NI_660x_WRITE, 2 }, + [NI660X_G1_DMA_STATUS] = { 0x0ba, NI_660x_READ, 2 }, + [NI660X_G2_INT_ACK] = { 0x104, NI_660x_WRITE, 2 }, + [NI660X_G2_STATUS] = { 0x104, NI_660x_READ, 2 }, + [NI660X_G3_INT_ACK] = { 0x106, NI_660x_WRITE, 2 }, + [NI660X_G3_STATUS] = { 0x106, NI_660x_READ, 2 }, + [NI660X_G23_STATUS] = { 0x108, NI_660x_READ, 2 }, + [NI660X_G2_CMD] = { 0x10c, NI_660x_WRITE, 2 }, + [NI660X_G3_CMD] = { 0x10e, NI_660x_WRITE, 2 }, + [NI660X_G2_HW_SAVE] = { 0x110, NI_660x_READ, 4 }, + [NI660X_G3_HW_SAVE] = { 0x114, NI_660x_READ, 4 }, + [NI660X_G2_SW_SAVE] = { 0x118, NI_660x_READ, 4 }, + [NI660X_G3_SW_SAVE] = { 0x11c, NI_660x_READ, 4 }, + [NI660X_G2_MODE] = { 0x134, NI_660x_WRITE, 2 }, + [NI660X_G23_STATUS1] = { 0x136, NI_660x_READ, 2 }, + [NI660X_G3_MODE] = { 0x136, NI_660x_WRITE, 2 }, + [NI660X_G2_LOADA] = { 0x138, NI_660x_WRITE, 4 }, + [NI660X_G23_STATUS2] = { 0x13a, NI_660x_READ, 2 }, + [NI660X_G2_LOADB] = { 0x13c, NI_660x_WRITE, 4 }, + [NI660X_G3_LOADA] = { 0x140, NI_660x_WRITE, 4 }, + [NI660X_G3_LOADB] = { 0x144, NI_660x_WRITE, 4 }, + [NI660X_G2_INPUT_SEL] = { 0x148, NI_660x_WRITE, 2 }, + [NI660X_G3_INPUT_SEL] = { 0x14a, NI_660x_WRITE, 2 }, + [NI660X_G2_AUTO_INC] = { 0x188, NI_660x_WRITE, 2 }, + [NI660X_G3_AUTO_INC] = { 0x18a, NI_660x_WRITE, 2 }, + [NI660X_G23_RESET] = { 0x190, NI_660x_WRITE, 2 }, + [NI660X_G2_INT_ENA] = { 0x192, NI_660x_WRITE, 2 }, + [NI660X_G3_INT_ENA] = { 0x196, NI_660x_WRITE, 2 }, + [NI660X_G2_CNT_MODE] = { 0x1b0, NI_660x_WRITE, 2 }, + [NI660X_G3_CNT_MODE] = { 0x1b2, NI_660x_WRITE, 2 }, + [NI660X_G3_GATE2] = { 0x1b6, NI_660x_WRITE, 2 }, + [NI660X_G2_GATE2] = { 0x1b4, NI_660x_WRITE, 2 }, + [NI660X_G2_DMA_CFG] = { 0x1b8, NI_660x_WRITE, 2 }, + [NI660X_G2_DMA_STATUS] = { 0x1b8, NI_660x_READ, 2 }, + [NI660X_G3_DMA_CFG] = { 0x1ba, NI_660x_WRITE, 2 }, + [NI660X_G3_DMA_STATUS] = { 0x1ba, NI_660x_READ, 2 }, + [NI660X_DIO32_INPUT] = { 0x414, NI_660x_READ, 4 }, + [NI660X_DIO32_OUTPUT] = { 0x510, NI_660x_WRITE, 4 }, + [NI660X_CLK_CFG] = { 0x73c, NI_660x_WRITE, 4 }, + [NI660X_GLOBAL_INT_STATUS] = { 0x754, NI_660x_READ, 4 }, + [NI660X_DMA_CFG] = { 0x76c, NI_660x_WRITE, 4 }, + [NI660X_GLOBAL_INT_CFG] = { 0x770, NI_660x_WRITE, 4 }, + [NI660X_IO_CFG_0_1] = { 0x77c, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_2_3] = { 0x77e, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_4_5] = { 0x780, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_6_7] = { 0x782, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_8_9] = { 0x784, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_10_11] = { 0x786, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_12_13] = { 0x788, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_14_15] = { 0x78a, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_16_17] = { 0x78c, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_18_19] = { 0x78e, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_20_21] = { 0x790, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_22_23] = { 0x792, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_24_25] = { 0x794, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_26_27] = { 0x796, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_28_29] = { 0x798, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_30_31] = { 0x79a, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_32_33] = { 0x79c, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_34_35] = { 0x79e, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_36_37] = { 0x7a0, NI_660x_READ_WRITE, 2 }, + [NI660X_IO_CFG_38_39] = { 0x7a2, NI_660x_READ_WRITE, 2 } }; /* kind of ENABLE for the second counter */ @@ -579,17 +573,10 @@ static inline void ni_660x_write_register(struct comedi_device *dev, { unsigned int addr = GPCT_OFFSET[chip] + registerData[reg].offset; - switch (registerData[reg].size) { - case DATA_2B: + if (registerData[reg].size == 2) writew(bits, dev->mmio + addr); - break; - case DATA_4B: + else writel(bits, dev->mmio + addr); - break; - default: - BUG(); - break; - } } static inline unsigned ni_660x_read_register(struct comedi_device *dev, @@ -598,16 +585,9 @@ static inline unsigned ni_660x_read_register(struct comedi_device *dev, { unsigned int addr = GPCT_OFFSET[chip] + registerData[reg].offset; - switch (registerData[reg].size) { - case DATA_2B: + if (registerData[reg].size == 2) return readw(dev->mmio + addr); - case DATA_4B: - return readl(dev->mmio + addr); - default: - BUG(); - break; - } - return 0; + return readl(dev->mmio + addr); } static void ni_gpct_write_register(struct ni_gpct *counter, unsigned bits, -- cgit v0.10.2 From 9392e5dde2652ec335f48f28db3c0433cbdc9d92 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:14 -0700 Subject: staging: comedi: ni_660x: remove enum ni_660x_register_direction This enum is used to define the, unused, 'direction' of each register in struct NI_660xRegisterData. Remove the unused member, as well as the enum. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index dbbeb96..409a776 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -158,12 +158,6 @@ enum ni_660x_register { #define NI660X_IO_CFG(x) (NI660X_IO_CFG_0_1 + ((x) / 2)) -enum ni_660x_register_direction { - NI_660x_READ, - NI_660x_WRITE, - NI_660x_READ_WRITE -}; - enum ni_660x_pfi_output_select { pfi_output_select_high_Z = 0, pfi_output_select_counter = 1, @@ -182,109 +176,108 @@ static inline unsigned NI_660X_GPCT_SUBDEV(unsigned index) struct NI_660xRegisterData { int offset; /* Offset from base address from GPCT chip */ - enum ni_660x_register_direction direction; char size; /* 2 or 4 bytes */ }; static const struct NI_660xRegisterData registerData[NI660X_NUM_REGS] = { - [NI660X_G0_INT_ACK] = { 0x004, NI_660x_WRITE, 2 }, - [NI660X_G0_STATUS] = { 0x004, NI_660x_READ, 2 }, - [NI660X_G1_INT_ACK] = { 0x006, NI_660x_WRITE, 2 }, - [NI660X_G1_STATUS] = { 0x006, NI_660x_READ, 2 }, - [NI660X_G01_STATUS] = { 0x008, NI_660x_READ, 2 }, - [NI660X_G0_CMD] = { 0x00c, NI_660x_WRITE, 2 }, - [NI660X_STC_DIO_PARALLEL_INPUT] = { 0x00e, NI_660x_READ, 2 }, - [NI660X_G1_CMD] = { 0x00e, NI_660x_WRITE, 2 }, - [NI660X_G0_HW_SAVE] = { 0x010, NI_660x_READ, 4 }, - [NI660X_G1_HW_SAVE] = { 0x014, NI_660x_READ, 4 }, - [NI660X_STC_DIO_OUTPUT] = { 0x014, NI_660x_WRITE, 2 }, - [NI660X_STC_DIO_CONTROL] = { 0x016, NI_660x_WRITE, 2 }, - [NI660X_G0_SW_SAVE] = { 0x018, NI_660x_READ, 4 }, - [NI660X_G1_SW_SAVE] = { 0x01c, NI_660x_READ, 4 }, - [NI660X_G0_MODE] = { 0x034, NI_660x_WRITE, 2 }, - [NI660X_G01_STATUS1] = { 0x036, NI_660x_READ, 2 }, - [NI660X_G1_MODE] = { 0x036, NI_660x_WRITE, 2 }, - [NI660X_STC_DIO_SERIAL_INPUT] = { 0x038, NI_660x_READ, 2 }, - [NI660X_G0_LOADA] = { 0x038, NI_660x_WRITE, 4 }, - [NI660X_G01_STATUS2] = { 0x03a, NI_660x_READ, 2 }, - [NI660X_G0_LOADB] = { 0x03c, NI_660x_WRITE, 4 }, - [NI660X_G1_LOADA] = { 0x040, NI_660x_WRITE, 4 }, - [NI660X_G1_LOADB] = { 0x044, NI_660x_WRITE, 4 }, - [NI660X_G0_INPUT_SEL] = { 0x048, NI_660x_WRITE, 2 }, - [NI660X_G1_INPUT_SEL] = { 0x04a, NI_660x_WRITE, 2 }, - [NI660X_G0_AUTO_INC] = { 0x088, NI_660x_WRITE, 2 }, - [NI660X_G1_AUTO_INC] = { 0x08a, NI_660x_WRITE, 2 }, - [NI660X_G01_RESET] = { 0x090, NI_660x_WRITE, 2 }, - [NI660X_G0_INT_ENA] = { 0x092, NI_660x_WRITE, 2 }, - [NI660X_G1_INT_ENA] = { 0x096, NI_660x_WRITE, 2 }, - [NI660X_G0_CNT_MODE] = { 0x0b0, NI_660x_WRITE, 2 }, - [NI660X_G1_CNT_MODE] = { 0x0b2, NI_660x_WRITE, 2 }, - [NI660X_G0_GATE2] = { 0x0b4, NI_660x_WRITE, 2 }, - [NI660X_G1_GATE2] = { 0x0b6, NI_660x_WRITE, 2 }, - [NI660X_G0_DMA_CFG] = { 0x0b8, NI_660x_WRITE, 2 }, - [NI660X_G0_DMA_STATUS] = { 0x0b8, NI_660x_READ, 2 }, - [NI660X_G1_DMA_CFG] = { 0x0ba, NI_660x_WRITE, 2 }, - [NI660X_G1_DMA_STATUS] = { 0x0ba, NI_660x_READ, 2 }, - [NI660X_G2_INT_ACK] = { 0x104, NI_660x_WRITE, 2 }, - [NI660X_G2_STATUS] = { 0x104, NI_660x_READ, 2 }, - [NI660X_G3_INT_ACK] = { 0x106, NI_660x_WRITE, 2 }, - [NI660X_G3_STATUS] = { 0x106, NI_660x_READ, 2 }, - [NI660X_G23_STATUS] = { 0x108, NI_660x_READ, 2 }, - [NI660X_G2_CMD] = { 0x10c, NI_660x_WRITE, 2 }, - [NI660X_G3_CMD] = { 0x10e, NI_660x_WRITE, 2 }, - [NI660X_G2_HW_SAVE] = { 0x110, NI_660x_READ, 4 }, - [NI660X_G3_HW_SAVE] = { 0x114, NI_660x_READ, 4 }, - [NI660X_G2_SW_SAVE] = { 0x118, NI_660x_READ, 4 }, - [NI660X_G3_SW_SAVE] = { 0x11c, NI_660x_READ, 4 }, - [NI660X_G2_MODE] = { 0x134, NI_660x_WRITE, 2 }, - [NI660X_G23_STATUS1] = { 0x136, NI_660x_READ, 2 }, - [NI660X_G3_MODE] = { 0x136, NI_660x_WRITE, 2 }, - [NI660X_G2_LOADA] = { 0x138, NI_660x_WRITE, 4 }, - [NI660X_G23_STATUS2] = { 0x13a, NI_660x_READ, 2 }, - [NI660X_G2_LOADB] = { 0x13c, NI_660x_WRITE, 4 }, - [NI660X_G3_LOADA] = { 0x140, NI_660x_WRITE, 4 }, - [NI660X_G3_LOADB] = { 0x144, NI_660x_WRITE, 4 }, - [NI660X_G2_INPUT_SEL] = { 0x148, NI_660x_WRITE, 2 }, - [NI660X_G3_INPUT_SEL] = { 0x14a, NI_660x_WRITE, 2 }, - [NI660X_G2_AUTO_INC] = { 0x188, NI_660x_WRITE, 2 }, - [NI660X_G3_AUTO_INC] = { 0x18a, NI_660x_WRITE, 2 }, - [NI660X_G23_RESET] = { 0x190, NI_660x_WRITE, 2 }, - [NI660X_G2_INT_ENA] = { 0x192, NI_660x_WRITE, 2 }, - [NI660X_G3_INT_ENA] = { 0x196, NI_660x_WRITE, 2 }, - [NI660X_G2_CNT_MODE] = { 0x1b0, NI_660x_WRITE, 2 }, - [NI660X_G3_CNT_MODE] = { 0x1b2, NI_660x_WRITE, 2 }, - [NI660X_G3_GATE2] = { 0x1b6, NI_660x_WRITE, 2 }, - [NI660X_G2_GATE2] = { 0x1b4, NI_660x_WRITE, 2 }, - [NI660X_G2_DMA_CFG] = { 0x1b8, NI_660x_WRITE, 2 }, - [NI660X_G2_DMA_STATUS] = { 0x1b8, NI_660x_READ, 2 }, - [NI660X_G3_DMA_CFG] = { 0x1ba, NI_660x_WRITE, 2 }, - [NI660X_G3_DMA_STATUS] = { 0x1ba, NI_660x_READ, 2 }, - [NI660X_DIO32_INPUT] = { 0x414, NI_660x_READ, 4 }, - [NI660X_DIO32_OUTPUT] = { 0x510, NI_660x_WRITE, 4 }, - [NI660X_CLK_CFG] = { 0x73c, NI_660x_WRITE, 4 }, - [NI660X_GLOBAL_INT_STATUS] = { 0x754, NI_660x_READ, 4 }, - [NI660X_DMA_CFG] = { 0x76c, NI_660x_WRITE, 4 }, - [NI660X_GLOBAL_INT_CFG] = { 0x770, NI_660x_WRITE, 4 }, - [NI660X_IO_CFG_0_1] = { 0x77c, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_2_3] = { 0x77e, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_4_5] = { 0x780, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_6_7] = { 0x782, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_8_9] = { 0x784, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_10_11] = { 0x786, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_12_13] = { 0x788, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_14_15] = { 0x78a, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_16_17] = { 0x78c, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_18_19] = { 0x78e, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_20_21] = { 0x790, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_22_23] = { 0x792, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_24_25] = { 0x794, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_26_27] = { 0x796, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_28_29] = { 0x798, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_30_31] = { 0x79a, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_32_33] = { 0x79c, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_34_35] = { 0x79e, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_36_37] = { 0x7a0, NI_660x_READ_WRITE, 2 }, - [NI660X_IO_CFG_38_39] = { 0x7a2, NI_660x_READ_WRITE, 2 } + [NI660X_G0_INT_ACK] = { 0x004, 2 }, /* write */ + [NI660X_G0_STATUS] = { 0x004, 2 }, /* read */ + [NI660X_G1_INT_ACK] = { 0x006, 2 }, /* write */ + [NI660X_G1_STATUS] = { 0x006, 2 }, /* read */ + [NI660X_G01_STATUS] = { 0x008, 2 }, /* read */ + [NI660X_G0_CMD] = { 0x00c, 2 }, /* write */ + [NI660X_STC_DIO_PARALLEL_INPUT] = { 0x00e, 2 }, /* read */ + [NI660X_G1_CMD] = { 0x00e, 2 }, /* write */ + [NI660X_G0_HW_SAVE] = { 0x010, 4 }, /* read */ + [NI660X_G1_HW_SAVE] = { 0x014, 4 }, /* read */ + [NI660X_STC_DIO_OUTPUT] = { 0x014, 2 }, /* write */ + [NI660X_STC_DIO_CONTROL] = { 0x016, 2 }, /* write */ + [NI660X_G0_SW_SAVE] = { 0x018, 4 }, /* read */ + [NI660X_G1_SW_SAVE] = { 0x01c, 4 }, /* read */ + [NI660X_G0_MODE] = { 0x034, 2 }, /* write */ + [NI660X_G01_STATUS1] = { 0x036, 2 }, /* read */ + [NI660X_G1_MODE] = { 0x036, 2 }, /* write */ + [NI660X_STC_DIO_SERIAL_INPUT] = { 0x038, 2 }, /* read */ + [NI660X_G0_LOADA] = { 0x038, 4 }, /* write */ + [NI660X_G01_STATUS2] = { 0x03a, 2 }, /* read */ + [NI660X_G0_LOADB] = { 0x03c, 4 }, /* write */ + [NI660X_G1_LOADA] = { 0x040, 4 }, /* write */ + [NI660X_G1_LOADB] = { 0x044, 4 }, /* write */ + [NI660X_G0_INPUT_SEL] = { 0x048, 2 }, /* write */ + [NI660X_G1_INPUT_SEL] = { 0x04a, 2 }, /* write */ + [NI660X_G0_AUTO_INC] = { 0x088, 2 }, /* write */ + [NI660X_G1_AUTO_INC] = { 0x08a, 2 }, /* write */ + [NI660X_G01_RESET] = { 0x090, 2 }, /* write */ + [NI660X_G0_INT_ENA] = { 0x092, 2 }, /* write */ + [NI660X_G1_INT_ENA] = { 0x096, 2 }, /* write */ + [NI660X_G0_CNT_MODE] = { 0x0b0, 2 }, /* write */ + [NI660X_G1_CNT_MODE] = { 0x0b2, 2 }, /* write */ + [NI660X_G0_GATE2] = { 0x0b4, 2 }, /* write */ + [NI660X_G1_GATE2] = { 0x0b6, 2 }, /* write */ + [NI660X_G0_DMA_CFG] = { 0x0b8, 2 }, /* write */ + [NI660X_G0_DMA_STATUS] = { 0x0b8, 2 }, /* read */ + [NI660X_G1_DMA_CFG] = { 0x0ba, 2 }, /* write */ + [NI660X_G1_DMA_STATUS] = { 0x0ba, 2 }, /* read */ + [NI660X_G2_INT_ACK] = { 0x104, 2 }, /* write */ + [NI660X_G2_STATUS] = { 0x104, 2 }, /* read */ + [NI660X_G3_INT_ACK] = { 0x106, 2 }, /* write */ + [NI660X_G3_STATUS] = { 0x106, 2 }, /* read */ + [NI660X_G23_STATUS] = { 0x108, 2 }, /* read */ + [NI660X_G2_CMD] = { 0x10c, 2 }, /* write */ + [NI660X_G3_CMD] = { 0x10e, 2 }, /* write */ + [NI660X_G2_HW_SAVE] = { 0x110, 4 }, /* read */ + [NI660X_G3_HW_SAVE] = { 0x114, 4 }, /* read */ + [NI660X_G2_SW_SAVE] = { 0x118, 4 }, /* read */ + [NI660X_G3_SW_SAVE] = { 0x11c, 4 }, /* read */ + [NI660X_G2_MODE] = { 0x134, 2 }, /* write */ + [NI660X_G23_STATUS1] = { 0x136, 2 }, /* read */ + [NI660X_G3_MODE] = { 0x136, 2 }, /* write */ + [NI660X_G2_LOADA] = { 0x138, 4 }, /* write */ + [NI660X_G23_STATUS2] = { 0x13a, 2 }, /* read */ + [NI660X_G2_LOADB] = { 0x13c, 4 }, /* write */ + [NI660X_G3_LOADA] = { 0x140, 4 }, /* write */ + [NI660X_G3_LOADB] = { 0x144, 4 }, /* write */ + [NI660X_G2_INPUT_SEL] = { 0x148, 2 }, /* write */ + [NI660X_G3_INPUT_SEL] = { 0x14a, 2 }, /* write */ + [NI660X_G2_AUTO_INC] = { 0x188, 2 }, /* write */ + [NI660X_G3_AUTO_INC] = { 0x18a, 2 }, /* write */ + [NI660X_G23_RESET] = { 0x190, 2 }, /* write */ + [NI660X_G2_INT_ENA] = { 0x192, 2 }, /* write */ + [NI660X_G3_INT_ENA] = { 0x196, 2 }, /* write */ + [NI660X_G2_CNT_MODE] = { 0x1b0, 2 }, /* write */ + [NI660X_G3_CNT_MODE] = { 0x1b2, 2 }, /* write */ + [NI660X_G3_GATE2] = { 0x1b6, 2 }, /* write */ + [NI660X_G2_GATE2] = { 0x1b4, 2 }, /* write */ + [NI660X_G2_DMA_CFG] = { 0x1b8, 2 }, /* write */ + [NI660X_G2_DMA_STATUS] = { 0x1b8, 2 }, /* read */ + [NI660X_G3_DMA_CFG] = { 0x1ba, 2 }, /* write */ + [NI660X_G3_DMA_STATUS] = { 0x1ba, 2 }, /* read */ + [NI660X_DIO32_INPUT] = { 0x414, 4 }, /* read */ + [NI660X_DIO32_OUTPUT] = { 0x510, 4 }, /* write */ + [NI660X_CLK_CFG] = { 0x73c, 4 }, /* write */ + [NI660X_GLOBAL_INT_STATUS] = { 0x754, 4 }, /* read */ + [NI660X_DMA_CFG] = { 0x76c, 4 }, /* write */ + [NI660X_GLOBAL_INT_CFG] = { 0x770, 4 }, /* write */ + [NI660X_IO_CFG_0_1] = { 0x77c, 2 }, /* read/write */ + [NI660X_IO_CFG_2_3] = { 0x77e, 2 }, /* read/write */ + [NI660X_IO_CFG_4_5] = { 0x780, 2 }, /* read/write */ + [NI660X_IO_CFG_6_7] = { 0x782, 2 }, /* read/write */ + [NI660X_IO_CFG_8_9] = { 0x784, 2 }, /* read/write */ + [NI660X_IO_CFG_10_11] = { 0x786, 2 }, /* read/write */ + [NI660X_IO_CFG_12_13] = { 0x788, 2 }, /* read/write */ + [NI660X_IO_CFG_14_15] = { 0x78a, 2 }, /* read/write */ + [NI660X_IO_CFG_16_17] = { 0x78c, 2 }, /* read/write */ + [NI660X_IO_CFG_18_19] = { 0x78e, 2 }, /* read/write */ + [NI660X_IO_CFG_20_21] = { 0x790, 2 }, /* read/write */ + [NI660X_IO_CFG_22_23] = { 0x792, 2 }, /* read/write */ + [NI660X_IO_CFG_24_25] = { 0x794, 2 }, /* read/write */ + [NI660X_IO_CFG_26_27] = { 0x796, 2 }, /* read/write */ + [NI660X_IO_CFG_28_29] = { 0x798, 2 }, /* read/write */ + [NI660X_IO_CFG_30_31] = { 0x79a, 2 }, /* read/write */ + [NI660X_IO_CFG_32_33] = { 0x79c, 2 }, /* read/write */ + [NI660X_IO_CFG_34_35] = { 0x79e, 2 }, /* read/write */ + [NI660X_IO_CFG_36_37] = { 0x7a0, 2 }, /* read/write */ + [NI660X_IO_CFG_38_39] = { 0x7a2, 2 } /* read/write */ }; /* kind of ENABLE for the second counter */ -- cgit v0.10.2 From b38700a22a62aaaff04e644a7f1c6b2733249294 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:15 -0700 Subject: staging: comedi: ni_660x: rename CamelCase 'NI_660xRegisterData' Rename this CamelCase struct and the associated 'registerData' variable. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 409a776..d76a5b0 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -174,12 +174,12 @@ static inline unsigned NI_660X_GPCT_SUBDEV(unsigned index) return NI_660X_GPCT_SUBDEV_0 + index; } -struct NI_660xRegisterData { +struct ni_660x_register_data { int offset; /* Offset from base address from GPCT chip */ char size; /* 2 or 4 bytes */ }; -static const struct NI_660xRegisterData registerData[NI660X_NUM_REGS] = { +static const struct ni_660x_register_data ni_660x_reg_data[NI660X_NUM_REGS] = { [NI660X_G0_INT_ACK] = { 0x004, 2 }, /* write */ [NI660X_G0_STATUS] = { 0x004, 2 }, /* read */ [NI660X_G1_INT_ACK] = { 0x006, 2 }, /* write */ @@ -564,9 +564,9 @@ static inline void ni_660x_write_register(struct comedi_device *dev, unsigned chip, unsigned bits, enum ni_660x_register reg) { - unsigned int addr = GPCT_OFFSET[chip] + registerData[reg].offset; + unsigned int addr = GPCT_OFFSET[chip] + ni_660x_reg_data[reg].offset; - if (registerData[reg].size == 2) + if (ni_660x_reg_data[reg].size == 2) writew(bits, dev->mmio + addr); else writel(bits, dev->mmio + addr); @@ -576,9 +576,9 @@ static inline unsigned ni_660x_read_register(struct comedi_device *dev, unsigned chip, enum ni_660x_register reg) { - unsigned int addr = GPCT_OFFSET[chip] + registerData[reg].offset; + unsigned int addr = GPCT_OFFSET[chip] + ni_660x_reg_data[reg].offset; - if (registerData[reg].size == 2) + if (ni_660x_reg_data[reg].size == 2) return readw(dev->mmio + addr); return readl(dev->mmio + addr); } -- cgit v0.10.2 From 01ead0ded315d660b07baccb68ca36c2a7f3da0a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:16 -0700 Subject: staging: comedi: ni_660x: cleanup the NI660X_IO_CFG register helpers Convert the inline functions used to set the bits in the NI600X_IO_CFG registers into macros. Also convert the enum ni_660x_pfi_output_select into defines. This clarifies the association with the register. This also fixes a number of checkpatch.pl issues about: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index d76a5b0..75c6032 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -156,14 +156,15 @@ enum ni_660x_register { NI660X_NUM_REGS, }; -#define NI660X_IO_CFG(x) (NI660X_IO_CFG_0_1 + ((x) / 2)) - -enum ni_660x_pfi_output_select { - pfi_output_select_high_Z = 0, - pfi_output_select_counter = 1, - pfi_output_select_do = 2, - num_pfi_output_selects -}; +#define NI660X_IO_CFG(x) (NI660X_IO_CFG_0_1 + ((x) / 2)) +#define NI660X_IO_CFG_OUT_SEL(_c, _s) (((_s) & 0x3) << (((_c) % 2) ? 0 : 8)) +#define NI660X_IO_CFG_OUT_SEL_MASK(_c) NI660X_IO_CFG_OUT_SEL((_c), 0x3) +#define NI660X_IO_CFG_OUT_SEL_HIGH_Z 0 +#define NI660X_IO_CFG_OUT_SEL_COUNTER 1 +#define NI660X_IO_CFG_OUT_SEL_DO 2 +#define NI660X_IO_CFG_OUT_SEL_MAX 3 +#define NI660X_IO_CFG_IN_SEL(_c, _s) (((_s) & 0x7) << (((_c) % 2) ? 4 : 12)) +#define NI660X_IO_CFG_IN_SEL_MASK(_c) NI660X_IO_CFG_IN_SEL((_c), 0x7) enum ni_660x_subdevices { NI_660X_DIO_SUBDEV = 1, @@ -285,34 +286,6 @@ enum clock_config_register_bits { CounterSwap = 0x1 << 21 }; -/* ioconfigreg */ -static inline unsigned ioconfig_bitshift(unsigned pfi_channel) -{ - return (pfi_channel % 2) ? 0 : 8; -} - -static inline unsigned pfi_output_select_mask(unsigned pfi_channel) -{ - return 0x3 << ioconfig_bitshift(pfi_channel); -} - -static inline unsigned pfi_output_select_bits(unsigned pfi_channel, - unsigned output_select) -{ - return (output_select & 0x3) << ioconfig_bitshift(pfi_channel); -} - -static inline unsigned pfi_input_select_mask(unsigned pfi_channel) -{ - return 0x7 << (4 + ioconfig_bitshift(pfi_channel)); -} - -static inline unsigned pfi_input_select_bits(unsigned pfi_channel, - unsigned input_select) -{ - return (input_select & 0x7) << (4 + ioconfig_bitshift(pfi_channel)); -} - /* dma configuration register bits */ static inline unsigned dma_select_mask(unsigned dma_channel) { @@ -808,7 +781,7 @@ static int ni_660x_allocate_private(struct comedi_device *dev) spin_lock_init(&devpriv->interrupt_lock); spin_lock_init(&devpriv->soft_reg_copy_lock); for (i = 0; i < NUM_PFI_CHANNELS; ++i) - devpriv->pfi_output_selects[i] = pfi_output_select_counter; + devpriv->pfi_output_selects[i] = NI660X_IO_CFG_OUT_SEL_COUNTER; return 0; } @@ -896,7 +869,7 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, unsigned idle_bits; if (board->n_chips > 1) { - if (output_select == pfi_output_select_counter && + if (output_select == NI660X_IO_CFG_OUT_SEL_COUNTER && pfi_channel >= counter_4_7_first_pfi && pfi_channel <= counter_4_7_last_pfi) { active_chipset = 1; @@ -911,10 +884,10 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, idle_bits = ni_660x_read_register(dev, idle_chipset, NI660X_IO_CFG(pfi_channel)); - idle_bits &= ~pfi_output_select_mask(pfi_channel); + idle_bits &= ~NI660X_IO_CFG_OUT_SEL_MASK(pfi_channel); idle_bits |= - pfi_output_select_bits(pfi_channel, - pfi_output_select_high_Z); + NI660X_IO_CFG_OUT_SEL(pfi_channel, + NI660X_IO_CFG_OUT_SEL_HIGH_Z); ni_660x_write_register(dev, idle_chipset, idle_bits, NI660X_IO_CFG(pfi_channel)); } @@ -922,8 +895,8 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, active_bits = ni_660x_read_register(dev, active_chipset, NI660X_IO_CFG(pfi_channel)); - active_bits &= ~pfi_output_select_mask(pfi_channel); - active_bits |= pfi_output_select_bits(pfi_channel, output_select); + active_bits &= ~NI660X_IO_CFG_OUT_SEL_MASK(pfi_channel); + active_bits |= NI660X_IO_CFG_OUT_SEL(pfi_channel, output_select); ni_660x_write_register(dev, active_chipset, active_bits, NI660X_IO_CFG(pfi_channel)); } @@ -933,15 +906,15 @@ static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned chan, { struct ni_660x_private *devpriv = dev->private; - if (source > num_pfi_output_selects) + if (source > NI660X_IO_CFG_OUT_SEL_MAX) return -EINVAL; - if (source == pfi_output_select_high_Z) + if (source == NI660X_IO_CFG_OUT_SEL_HIGH_Z) return -EINVAL; if (chan < min_counter_pfi_chan) { - if (source == pfi_output_select_counter) + if (source == NI660X_IO_CFG_OUT_SEL_COUNTER) return -EINVAL; } else if (chan > max_dio_pfi_chan) { - if (source == pfi_output_select_do) + if (source == NI660X_IO_CFG_OUT_SEL_DO) return -EINVAL; } @@ -972,7 +945,8 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, case INSN_CONFIG_DIO_INPUT: devpriv->pfi_direction_bits &= ~bit; - ni_660x_select_pfi_output(dev, chan, pfi_output_select_high_Z); + ni_660x_select_pfi_output(dev, chan, + NI660X_IO_CFG_OUT_SEL_HIGH_Z); break; case INSN_CONFIG_DIO_QUERY: @@ -992,8 +966,8 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, case INSN_CONFIG_FILTER: val = ni_660x_read_register(dev, 0, NI660X_IO_CFG(chan)); - val &= ~pfi_input_select_mask(chan); - val |= pfi_input_select_bits(chan, data[1]); + val &= ~NI660X_IO_CFG_IN_SEL_MASK(chan); + val |= NI660X_IO_CFG_IN_SEL(chan, data[1]); ni_660x_write_register(dev, 0, val, NI660X_IO_CFG(chan)); break; @@ -1108,11 +1082,12 @@ static int ni_660x_auto_attach(struct comedi_device *dev, for (i = 0; i < NUM_PFI_CHANNELS; ++i) { if (i < min_counter_pfi_chan) - ni_660x_set_pfi_routing(dev, i, pfi_output_select_do); + ni_660x_set_pfi_routing(dev, i, + NI660X_IO_CFG_OUT_SEL_DO); else ni_660x_set_pfi_routing(dev, i, - pfi_output_select_counter); - ni_660x_select_pfi_output(dev, i, pfi_output_select_high_Z); + NI660X_IO_CFG_OUT_SEL_COUNTER); + ni_660x_select_pfi_output(dev, i, NI660X_IO_CFG_OUT_SEL_HIGH_Z); } /* to be safe, set counterswap bits on tio chips after all the counter outputs have been set to high impedance mode */ -- cgit v0.10.2 From aa36af205e4e7fd94842be73c1f8a5bb5b12d302 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:17 -0700 Subject: staging: comedi: ni_660x: tidy up multi-line comment Reformat the multi-line comment in the kernel CodingStyle. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 75c6032..ab761aa 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -1,17 +1,16 @@ /* - comedi/drivers/ni_660x.c - Hardware driver for NI 660x devices - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * Hardware driver for NI 660x devices + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ /* * Driver: ni_660x -- cgit v0.10.2 From 502552e161aee965026f9b5cc0da3dfb3775a8c7 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:18 -0700 Subject: staging: comedi: ni_660x: remove enum clock_config_register_bits Remove this enum and add a define for the bit. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index ab761aa..30089cd 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -155,6 +155,8 @@ enum ni_660x_register { NI660X_NUM_REGS, }; +#define NI660X_CLK_CFG_COUNTER_SWAP BIT(21) + #define NI660X_IO_CFG(x) (NI660X_IO_CFG_0_1 + ((x) / 2)) #define NI660X_IO_CFG_OUT_SEL(_c, _s) (((_s) & 0x3) << (((_c) % 2) ? 0 : 8)) #define NI660X_IO_CFG_OUT_SEL_MASK(_c) NI660X_IO_CFG_OUT_SEL((_c), 0x3) @@ -280,11 +282,6 @@ static const struct ni_660x_register_data ni_660x_reg_data[NI660X_NUM_REGS] = { [NI660X_IO_CFG_38_39] = { 0x7a2, 2 } /* read/write */ }; -/* kind of ENABLE for the second counter */ -enum clock_config_register_bits { - CounterSwap = 0x1 << 21 -}; - /* dma configuration register bits */ static inline unsigned dma_select_mask(unsigned dma_channel) { @@ -704,7 +701,7 @@ static void set_tio_counterswap(struct comedi_device *dev, int chip) * first chip. */ if (chip) - bits = CounterSwap; + bits = NI660X_CLK_CFG_COUNTER_SWAP; ni_660x_write_register(dev, chip, bits, NI660X_CLK_CFG); } -- cgit v0.10.2 From fecf4cce0021aebd587f7bbd970806c24988ef26 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:19 -0700 Subject: staging: comedi: ni_660x: cleanup the NI660X_DMA_CFG register helpers The BUG_ON() checks in the helper functions are not necessary. The mite driver quiries the PCI chip to determine the number of DMA channels. This is then used when a DMA channel is requested so the channel will always be in range. Convert the inline functions used to set the bits in the NI600X_DMA_CFG register into macros. Also convert the associated enum dma_selection. This clarifies the association with the register. Rename the associated 'dma_configuration_soft_copies' member of the private data to allow shorting some of the ugly long lines in the driver. This also fixes a number of checkpatch.pl issues about: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 30089cd..0b37982 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -157,6 +157,11 @@ enum ni_660x_register { #define NI660X_CLK_CFG_COUNTER_SWAP BIT(21) +#define NI660X_DMA_CFG_SEL(_c, _s) (((_s) & 0x1f) << (8 * (_c))) +#define NI660X_DMA_CFG_SEL_MASK(_c) NI660X_DMA_CFG_SEL((_c), 0x1f) +#define NI660X_DMA_CFG_SEL_NONE(_c) NI660X_DMA_CFG_SEL((_c), 0x1f) +#define NI660X_DMA_CFG_RESET(_c) NI660X_DMA_CFG_SEL((_c), 0x80) + #define NI660X_IO_CFG(x) (NI660X_IO_CFG_0_1 + ((x) / 2)) #define NI660X_IO_CFG_OUT_SEL(_c, _s) (((_s) & 0x3) << (((_c) % 2) ? 0 : 8)) #define NI660X_IO_CFG_OUT_SEL_MASK(_c) NI660X_IO_CFG_OUT_SEL((_c), 0x3) @@ -282,29 +287,6 @@ static const struct ni_660x_register_data ni_660x_reg_data[NI660X_NUM_REGS] = { [NI660X_IO_CFG_38_39] = { 0x7a2, 2 } /* read/write */ }; -/* dma configuration register bits */ -static inline unsigned dma_select_mask(unsigned dma_channel) -{ - BUG_ON(dma_channel >= MAX_DMA_CHANNEL); - return 0x1f << (8 * dma_channel); -} - -enum dma_selection { - dma_selection_none = 0x1f, -}; - -static inline unsigned dma_select_bits(unsigned dma_channel, unsigned selection) -{ - BUG_ON(dma_channel >= MAX_DMA_CHANNEL); - return (selection << (8 * dma_channel)) & dma_select_mask(dma_channel); -} - -static inline unsigned dma_reset_bit(unsigned dma_channel) -{ - BUG_ON(dma_channel >= MAX_DMA_CHANNEL); - return 0x80 << (8 * dma_channel); -} - enum global_interrupt_status_register_bits { Counter_0_Int_Bit = 0x100, Counter_1_Int_Bit = 0x200, @@ -372,7 +354,7 @@ struct ni_660x_private { spinlock_t mite_channel_lock; /* interrupt_lock prevents races between interrupt and comedi_poll */ spinlock_t interrupt_lock; - unsigned dma_configuration_soft_copies[NI_660X_MAX_NUM_CHIPS]; + unsigned dma_cfg[NI_660X_MAX_NUM_CHIPS]; spinlock_t soft_reg_copy_lock; unsigned short pfi_output_selects[NUM_PFI_CHANNELS]; }; @@ -591,13 +573,12 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev, unsigned long flags; spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); - devpriv->dma_configuration_soft_copies[chip] &= - ~dma_select_mask(mite_channel); - devpriv->dma_configuration_soft_copies[chip] |= - dma_select_bits(mite_channel, counter->counter_index); - ni_660x_write_register(dev, chip, - devpriv->dma_configuration_soft_copies[chip] | - dma_reset_bit(mite_channel), NI660X_DMA_CFG); + devpriv->dma_cfg[chip] &= ~NI660X_DMA_CFG_SEL_MASK(mite_channel); + devpriv->dma_cfg[chip] |= NI660X_DMA_CFG_SEL(mite_channel, + counter->counter_index); + ni_660x_write_register(dev, chip, devpriv->dma_cfg[chip] | + NI660X_DMA_CFG_RESET(mite_channel), + NI660X_DMA_CFG); mmiowb(); spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); } @@ -611,12 +592,9 @@ static inline void ni_660x_unset_dma_channel(struct comedi_device *dev, unsigned long flags; spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); - devpriv->dma_configuration_soft_copies[chip] &= - ~dma_select_mask(mite_channel); - devpriv->dma_configuration_soft_copies[chip] |= - dma_select_bits(mite_channel, dma_selection_none); - ni_660x_write_register(dev, chip, - devpriv->dma_configuration_soft_copies[chip], + devpriv->dma_cfg[chip] &= ~NI660X_DMA_CFG_SEL_MASK(mite_channel); + devpriv->dma_cfg[chip] |= NI660X_DMA_CFG_SEL_NONE(mite_channel); + ni_660x_write_register(dev, chip, devpriv->dma_cfg[chip], NI660X_DMA_CFG); mmiowb(); spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); @@ -819,13 +797,10 @@ static void init_tio_chip(struct comedi_device *dev, int chipset) unsigned i; /* init dma configuration register */ - devpriv->dma_configuration_soft_copies[chipset] = 0; - for (i = 0; i < MAX_DMA_CHANNEL; ++i) { - devpriv->dma_configuration_soft_copies[chipset] |= - dma_select_bits(i, dma_selection_none) & dma_select_mask(i); - } - ni_660x_write_register(dev, chipset, - devpriv->dma_configuration_soft_copies[chipset], + devpriv->dma_cfg[chipset] = 0; + for (i = 0; i < MAX_DMA_CHANNEL; ++i) + devpriv->dma_cfg[chipset] |= NI660X_DMA_CFG_SEL_NONE(i); + ni_660x_write_register(dev, chipset, devpriv->dma_cfg[chipset], NI660X_DMA_CFG); for (i = 0; i < NUM_PFI_CHANNELS; ++i) ni_660x_write_register(dev, chipset, 0, NI660X_IO_CFG(i)); -- cgit v0.10.2 From 41014593caebadec2f022d96d3326816599d439d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:20 -0700 Subject: staging: comedi: ni_660x: cleanup the NI660X_GLOBAL_INT_{STATUS, CFG} Remove the enums global_interrupt_{status,config}_register_bits and add defines for the CamelCase values. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 0b37982..773147a 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -157,6 +157,14 @@ enum ni_660x_register { #define NI660X_CLK_CFG_COUNTER_SWAP BIT(21) +#define NI660X_GLOBAL_INT_COUNTER0 BIT(8) +#define NI660X_GLOBAL_INT_COUNTER1 BIT(9) +#define NI660X_GLOBAL_INT_COUNTER2 BIT(10) +#define NI660X_GLOBAL_INT_COUNTER3 BIT(11) +#define NI660X_GLOBAL_INT_CASCADE BIT(29) +#define NI660X_GLOBAL_INT_GLOBAL_POL BIT(30) +#define NI660X_GLOBAL_INT_GLOBAL BIT(31) + #define NI660X_DMA_CFG_SEL(_c, _s) (((_s) & 0x1f) << (8 * (_c))) #define NI660X_DMA_CFG_SEL_MASK(_c) NI660X_DMA_CFG_SEL((_c), 0x1f) #define NI660X_DMA_CFG_SEL_NONE(_c) NI660X_DMA_CFG_SEL((_c), 0x1f) @@ -287,21 +295,6 @@ static const struct ni_660x_register_data ni_660x_reg_data[NI660X_NUM_REGS] = { [NI660X_IO_CFG_38_39] = { 0x7a2, 2 } /* read/write */ }; -enum global_interrupt_status_register_bits { - Counter_0_Int_Bit = 0x100, - Counter_1_Int_Bit = 0x200, - Counter_2_Int_Bit = 0x400, - Counter_3_Int_Bit = 0x800, - Cascade_Int_Bit = 0x20000000, - Global_Int_Bit = 0x80000000 -}; - -enum global_interrupt_config_register_bits { - Cascade_Int_Enable_Bit = 0x20000000, - Global_Int_Polarity_Bit = 0x40000000, - Global_Int_Enable_Bit = 0x80000000 -}; - /* Offset of the GPCT chips from the base-address of the card */ /* First chip is at base-address + 0x00, etc. */ static const unsigned GPCT_OFFSET[2] = { 0x0, 0x800 }; @@ -1072,9 +1065,9 @@ static int ni_660x_auto_attach(struct comedi_device *dev, return ret; } dev->irq = pcidev->irq; - global_interrupt_config_bits = Global_Int_Enable_Bit; + global_interrupt_config_bits = NI660X_GLOBAL_INT_GLOBAL; if (board->n_chips > 1) - global_interrupt_config_bits |= Cascade_Int_Enable_Bit; + global_interrupt_config_bits |= NI660X_GLOBAL_INT_CASCADE; ni_660x_write_register(dev, 0, global_interrupt_config_bits, NI660X_GLOBAL_INT_CFG); -- cgit v0.10.2 From 9678b73e273abcd5ab13b7ecc44521f501529ca4 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:21 -0700 Subject: staging: comedi: ni_660x: tidy up ni_660x_write_register() Rename this function to help shorten some of the long lines. Remove the inline, let the compiler figure it out. Change the 'unsigned' parameters to 'unsigned int' to fix the checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 773147a..aa40ab6 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -504,9 +504,9 @@ static enum ni_660x_register ni_gpct_to_660x_register(enum ni_gpct_register reg) } } -static inline void ni_660x_write_register(struct comedi_device *dev, - unsigned chip, unsigned bits, - enum ni_660x_register reg) +static void ni_660x_write(struct comedi_device *dev, + unsigned int chip, unsigned int bits, + enum ni_660x_register reg) { unsigned int addr = GPCT_OFFSET[chip] + ni_660x_reg_data[reg].offset; @@ -534,7 +534,7 @@ static void ni_gpct_write_register(struct ni_gpct *counter, unsigned bits, enum ni_660x_register ni_660x_register = ni_gpct_to_660x_register(reg); unsigned chip = counter->chip_index; - ni_660x_write_register(dev, chip, bits, ni_660x_register); + ni_660x_write(dev, chip, bits, ni_660x_register); } static unsigned ni_gpct_read_register(struct ni_gpct *counter, @@ -569,9 +569,9 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev, devpriv->dma_cfg[chip] &= ~NI660X_DMA_CFG_SEL_MASK(mite_channel); devpriv->dma_cfg[chip] |= NI660X_DMA_CFG_SEL(mite_channel, counter->counter_index); - ni_660x_write_register(dev, chip, devpriv->dma_cfg[chip] | - NI660X_DMA_CFG_RESET(mite_channel), - NI660X_DMA_CFG); + ni_660x_write(dev, chip, devpriv->dma_cfg[chip] | + NI660X_DMA_CFG_RESET(mite_channel), + NI660X_DMA_CFG); mmiowb(); spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); } @@ -587,8 +587,7 @@ static inline void ni_660x_unset_dma_channel(struct comedi_device *dev, spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); devpriv->dma_cfg[chip] &= ~NI660X_DMA_CFG_SEL_MASK(mite_channel); devpriv->dma_cfg[chip] |= NI660X_DMA_CFG_SEL_NONE(mite_channel); - ni_660x_write_register(dev, chip, devpriv->dma_cfg[chip], - NI660X_DMA_CFG); + ni_660x_write(dev, chip, devpriv->dma_cfg[chip], NI660X_DMA_CFG); mmiowb(); spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); } @@ -674,7 +673,7 @@ static void set_tio_counterswap(struct comedi_device *dev, int chip) if (chip) bits = NI660X_CLK_CFG_COUNTER_SWAP; - ni_660x_write_register(dev, chip, bits, NI660X_CLK_CFG); + ni_660x_write(dev, chip, bits, NI660X_CLK_CFG); } static void ni_660x_handle_gpct_interrupt(struct comedi_device *dev, @@ -793,10 +792,9 @@ static void init_tio_chip(struct comedi_device *dev, int chipset) devpriv->dma_cfg[chipset] = 0; for (i = 0; i < MAX_DMA_CHANNEL; ++i) devpriv->dma_cfg[chipset] |= NI660X_DMA_CFG_SEL_NONE(i); - ni_660x_write_register(dev, chipset, devpriv->dma_cfg[chipset], - NI660X_DMA_CFG); + ni_660x_write(dev, chipset, devpriv->dma_cfg[chipset], NI660X_DMA_CFG); for (i = 0; i < NUM_PFI_CHANNELS; ++i) - ni_660x_write_register(dev, chipset, 0, NI660X_IO_CFG(i)); + ni_660x_write(dev, chipset, 0, NI660X_IO_CFG(i)); } static int ni_660x_dio_insn_bits(struct comedi_device *dev, @@ -810,7 +808,7 @@ static int ni_660x_dio_insn_bits(struct comedi_device *dev, s->state &= ~(data[0] << base_bitfield_channel); s->state |= (data[0] & data[1]) << base_bitfield_channel; /* Write out the new digital output lines */ - ni_660x_write_register(dev, 0, s->state, NI660X_DIO32_OUTPUT); + ni_660x_write(dev, 0, s->state, NI660X_DIO32_OUTPUT); } /* on return, data[1] contains the value of the digital * input and output lines. */ @@ -852,8 +850,8 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, idle_bits |= NI660X_IO_CFG_OUT_SEL(pfi_channel, NI660X_IO_CFG_OUT_SEL_HIGH_Z); - ni_660x_write_register(dev, idle_chipset, idle_bits, - NI660X_IO_CFG(pfi_channel)); + ni_660x_write(dev, idle_chipset, idle_bits, + NI660X_IO_CFG(pfi_channel)); } active_bits = @@ -861,8 +859,8 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, NI660X_IO_CFG(pfi_channel)); active_bits &= ~NI660X_IO_CFG_OUT_SEL_MASK(pfi_channel); active_bits |= NI660X_IO_CFG_OUT_SEL(pfi_channel, output_select); - ni_660x_write_register(dev, active_chipset, active_bits, - NI660X_IO_CFG(pfi_channel)); + ni_660x_write(dev, active_chipset, active_bits, + NI660X_IO_CFG(pfi_channel)); } static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned chan, @@ -932,7 +930,7 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, val = ni_660x_read_register(dev, 0, NI660X_IO_CFG(chan)); val &= ~NI660X_IO_CFG_IN_SEL_MASK(chan); val |= NI660X_IO_CFG_IN_SEL(chan, data[1]); - ni_660x_write_register(dev, 0, val, NI660X_IO_CFG(chan)); + ni_660x_write(dev, 0, val, NI660X_IO_CFG(chan)); break; default: @@ -1000,7 +998,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, s->insn_config = ni_660x_dio_insn_config; /* we use the ioconfig registers to control dio direction, so zero output enables in stc dio control reg */ - ni_660x_write_register(dev, 0, 0, NI660X_STC_DIO_CONTROL); + ni_660x_write(dev, 0, 0, NI660X_STC_DIO_CONTROL); devpriv->counter_dev = ni_gpct_device_construct(dev, &ni_gpct_write_register, @@ -1068,8 +1066,8 @@ static int ni_660x_auto_attach(struct comedi_device *dev, global_interrupt_config_bits = NI660X_GLOBAL_INT_GLOBAL; if (board->n_chips > 1) global_interrupt_config_bits |= NI660X_GLOBAL_INT_CASCADE; - ni_660x_write_register(dev, 0, global_interrupt_config_bits, - NI660X_GLOBAL_INT_CFG); + ni_660x_write(dev, 0, global_interrupt_config_bits, + NI660X_GLOBAL_INT_CFG); return 0; } -- cgit v0.10.2 From ad98c18cb9de633d1023114842d1e895766b99b2 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:22 -0700 Subject: staging: comedi: ni_660x: tidy up ni_660x_read_register() Rename this function to help shorten some of the long lines. Remove the inline, let the compiler figure it out. Change the 'unsigned' parameters to 'unsigned int' to fix the checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index aa40ab6..cd101bb 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -516,9 +516,9 @@ static void ni_660x_write(struct comedi_device *dev, writel(bits, dev->mmio + addr); } -static inline unsigned ni_660x_read_register(struct comedi_device *dev, - unsigned chip, - enum ni_660x_register reg) +static unsigned int ni_660x_read(struct comedi_device *dev, + unsigned int chip, + enum ni_660x_register reg) { unsigned int addr = GPCT_OFFSET[chip] + ni_660x_reg_data[reg].offset; @@ -544,7 +544,7 @@ static unsigned ni_gpct_read_register(struct ni_gpct *counter, enum ni_660x_register ni_660x_register = ni_gpct_to_660x_register(reg); unsigned chip = counter->chip_index; - return ni_660x_read_register(dev, chip, ni_660x_register); + return ni_660x_read(dev, chip, ni_660x_register); } static inline struct mite_dma_descriptor_ring *mite_ring(struct ni_660x_private @@ -812,7 +812,7 @@ static int ni_660x_dio_insn_bits(struct comedi_device *dev, } /* on return, data[1] contains the value of the digital * input and output lines. */ - data[1] = (ni_660x_read_register(dev, 0, NI660X_DIO32_INPUT) >> + data[1] = (ni_660x_read(dev, 0, NI660X_DIO32_INPUT) >> base_bitfield_channel); return insn->n; @@ -843,9 +843,8 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, } if (idle_chipset != active_chipset) { - idle_bits = - ni_660x_read_register(dev, idle_chipset, - NI660X_IO_CFG(pfi_channel)); + idle_bits = ni_660x_read(dev, idle_chipset, + NI660X_IO_CFG(pfi_channel)); idle_bits &= ~NI660X_IO_CFG_OUT_SEL_MASK(pfi_channel); idle_bits |= NI660X_IO_CFG_OUT_SEL(pfi_channel, @@ -854,9 +853,8 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, NI660X_IO_CFG(pfi_channel)); } - active_bits = - ni_660x_read_register(dev, active_chipset, - NI660X_IO_CFG(pfi_channel)); + active_bits = ni_660x_read(dev, active_chipset, + NI660X_IO_CFG(pfi_channel)); active_bits &= ~NI660X_IO_CFG_OUT_SEL_MASK(pfi_channel); active_bits |= NI660X_IO_CFG_OUT_SEL(pfi_channel, output_select); ni_660x_write(dev, active_chipset, active_bits, @@ -927,7 +925,7 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, break; case INSN_CONFIG_FILTER: - val = ni_660x_read_register(dev, 0, NI660X_IO_CFG(chan)); + val = ni_660x_read(dev, 0, NI660X_IO_CFG(chan)); val &= ~NI660X_IO_CFG_IN_SEL_MASK(chan); val |= NI660X_IO_CFG_IN_SEL(chan, data[1]); ni_660x_write(dev, 0, val, NI660X_IO_CFG(chan)); -- cgit v0.10.2 From dc285820cc19a666aea45ac74e9737c2afcf8189 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:23 -0700 Subject: staging: comedi: ni_660x: tidy up ni_gpct_{write, read}_register() Rename these functions so they have namespace associated with the driver. Fix the checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index cd101bb..e0532f4 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -527,24 +527,22 @@ static unsigned int ni_660x_read(struct comedi_device *dev, return readl(dev->mmio + addr); } -static void ni_gpct_write_register(struct ni_gpct *counter, unsigned bits, - enum ni_gpct_register reg) +static void ni_660x_gpct_write(struct ni_gpct *counter, unsigned int bits, + enum ni_gpct_register reg) { struct comedi_device *dev = counter->counter_dev->dev; enum ni_660x_register ni_660x_register = ni_gpct_to_660x_register(reg); - unsigned chip = counter->chip_index; - ni_660x_write(dev, chip, bits, ni_660x_register); + ni_660x_write(dev, counter->chip_index, bits, ni_660x_register); } -static unsigned ni_gpct_read_register(struct ni_gpct *counter, +static unsigned int ni_660x_gpct_read(struct ni_gpct *counter, enum ni_gpct_register reg) { struct comedi_device *dev = counter->counter_dev->dev; enum ni_660x_register ni_660x_register = ni_gpct_to_660x_register(reg); - unsigned chip = counter->chip_index; - return ni_660x_read(dev, chip, ni_660x_register); + return ni_660x_read(dev, counter->chip_index, ni_660x_register); } static inline struct mite_dma_descriptor_ring *mite_ring(struct ni_660x_private @@ -999,8 +997,8 @@ static int ni_660x_auto_attach(struct comedi_device *dev, ni_660x_write(dev, 0, 0, NI660X_STC_DIO_CONTROL); devpriv->counter_dev = ni_gpct_device_construct(dev, - &ni_gpct_write_register, - &ni_gpct_read_register, + ni_660x_gpct_write, + ni_660x_gpct_read, ni_gpct_variant_660x, ni_660x_num_counters (dev)); -- cgit v0.10.2 From 518d38423b48ad23b2f4b13dd9a027aa37423f1d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:24 -0700 Subject: staging: comedi: ni_660x: tidy up ni_660x_select_pfi_output() Tidy up this function to fix the checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' For aesthetics, remove the static const local variables. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index e0532f4..79678af 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -817,46 +817,40 @@ static int ni_660x_dio_insn_bits(struct comedi_device *dev, } static void ni_660x_select_pfi_output(struct comedi_device *dev, - unsigned pfi_channel, - unsigned output_select) + unsigned int chan, unsigned int out_sel) { const struct ni_660x_board *board = dev->board_ptr; - static const unsigned counter_4_7_first_pfi = 8; - static const unsigned counter_4_7_last_pfi = 23; - unsigned active_chipset = 0; - unsigned idle_chipset = 0; - unsigned active_bits; - unsigned idle_bits; + unsigned int active_chip = 0; + unsigned int idle_chip = 0; + unsigned int bits; if (board->n_chips > 1) { - if (output_select == NI660X_IO_CFG_OUT_SEL_COUNTER && - pfi_channel >= counter_4_7_first_pfi && - pfi_channel <= counter_4_7_last_pfi) { - active_chipset = 1; - idle_chipset = 0; + if (out_sel == NI660X_IO_CFG_OUT_SEL_COUNTER && + chan >= 8 && chan <= 23) { + /* counters 4-7 pfi channels */ + active_chip = 1; + idle_chip = 0; } else { - active_chipset = 0; - idle_chipset = 1; + /* counters 0-3 pfi channels */ + active_chip = 0; + idle_chip = 1; } } - if (idle_chipset != active_chipset) { - idle_bits = ni_660x_read(dev, idle_chipset, - NI660X_IO_CFG(pfi_channel)); - idle_bits &= ~NI660X_IO_CFG_OUT_SEL_MASK(pfi_channel); - idle_bits |= - NI660X_IO_CFG_OUT_SEL(pfi_channel, - NI660X_IO_CFG_OUT_SEL_HIGH_Z); - ni_660x_write(dev, idle_chipset, idle_bits, - NI660X_IO_CFG(pfi_channel)); + if (idle_chip != active_chip) { + /* set the pfi channel to high-z on the inactive chip */ + bits = ni_660x_read(dev, idle_chip, NI660X_IO_CFG(chan)); + bits &= ~NI660X_IO_CFG_OUT_SEL_MASK(chan); + bits |= NI660X_IO_CFG_OUT_SEL(chan, + NI660X_IO_CFG_OUT_SEL_HIGH_Z); + ni_660x_write(dev, idle_chip, bits, NI660X_IO_CFG(chan)); } - active_bits = ni_660x_read(dev, active_chipset, - NI660X_IO_CFG(pfi_channel)); - active_bits &= ~NI660X_IO_CFG_OUT_SEL_MASK(pfi_channel); - active_bits |= NI660X_IO_CFG_OUT_SEL(pfi_channel, output_select); - ni_660x_write(dev, active_chipset, active_bits, - NI660X_IO_CFG(pfi_channel)); + /* set the pfi channel output on the active chip */ + bits = ni_660x_read(dev, active_chip, NI660X_IO_CFG(chan)); + bits &= ~NI660X_IO_CFG_OUT_SEL_MASK(chan); + bits |= NI660X_IO_CFG_OUT_SEL(chan, out_sel); + ni_660x_write(dev, active_chip, bits, NI660X_IO_CFG(chan)); } static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned chan, -- cgit v0.10.2 From ff1e71be56d6c493084eac86afa0aeb59bca9c53 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:25 -0700 Subject: staging: comedi: ni_660x: remove BUG_ON() in ni_660x_request_mite_channel() This BUG_ON() happens if a mite DMA channel is already requested when an ansynchronous command is started for one of the counter subdevices. The comedi core will only call the (*do_cmd) if the subdevice is not busy. In this driver, the (*cancel) for the subdevice will always release any requested mite DMA channel. Remove the BUG_ON() which can never occur. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 79678af..232c897 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -599,7 +599,6 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev, struct mite_channel *mite_chan; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - BUG_ON(counter->mite_chan); mite_chan = mite_request_channel(devpriv->mite, mite_ring(devpriv, counter)); if (!mite_chan) { -- cgit v0.10.2 From 6d40805b0b4e4392e68fea0028edcafa5fcdc04a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:26 -0700 Subject: staging: comedi: ni_660x: fix block comment issues Fix the checkpatch.pl issues about: WARNING: Block comments use * on subsequent lines WARNING: Block comments use a trailing */ on a separate line Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 232c897..0183497 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -48,8 +48,7 @@ enum ni_660x_constants { }; #define NUM_PFI_CHANNELS 40 -/* really there are only up to 3 dma channels, but the register layout allows -for 4 */ +/* there are only up to 3 dma channels, but the register layout allows for 4 */ #define MAX_DMA_CHANNEL 4 /* See Register-Level Programmer Manual page 3.1 */ @@ -985,8 +984,11 @@ static int ni_660x_auto_attach(struct comedi_device *dev, s->range_table = &range_digital; s->insn_bits = ni_660x_dio_insn_bits; s->insn_config = ni_660x_dio_insn_config; - /* we use the ioconfig registers to control dio direction, so zero - output enables in stc dio control reg */ + + /* + * We use the ioconfig registers to control dio direction, so zero + * output enables in stc dio control reg. + */ ni_660x_write(dev, 0, 0, NI660X_STC_DIO_CONTROL); devpriv->counter_dev = ni_gpct_device_construct(dev, @@ -1040,8 +1042,11 @@ static int ni_660x_auto_attach(struct comedi_device *dev, NI660X_IO_CFG_OUT_SEL_COUNTER); ni_660x_select_pfi_output(dev, i, NI660X_IO_CFG_OUT_SEL_HIGH_Z); } - /* to be safe, set counterswap bits on tio chips after all the counter - outputs have been set to high impedance mode */ + + /* + * To be safe, set counterswap bits on tio chips after all the counter + * outputs have been set to high impedance mode. + */ for (i = 0; i < board->n_chips; ++i) set_tio_counterswap(dev, i); -- cgit v0.10.2 From 520e61915186e0538a8fc46e5e268a2000141545 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:27 -0700 Subject: staging: comedi: ni_660x: remove enum ni_660x_subdevices Hard-coding the subdevice order is normally a bad idea. If a new subdevice is added, or removed, it could potentially break pretty badly. Remove the enum and associated NI_660X_GPCT_SUBDEV() helper that hard-code the subdevice order. Fix the (*auto_attach) so it initializes all the subdevices without depending on the hard-coded order. Change the interrupt handler so that all the counter subdevices are handled without depending on the hard-coded order. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 0183497..595c862 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -179,15 +179,6 @@ enum ni_660x_register { #define NI660X_IO_CFG_IN_SEL(_c, _s) (((_s) & 0x7) << (((_c) % 2) ? 4 : 12)) #define NI660X_IO_CFG_IN_SEL_MASK(_c) NI660X_IO_CFG_IN_SEL((_c), 0x7) -enum ni_660x_subdevices { - NI_660X_DIO_SUBDEV = 1, - NI_660X_GPCT_SUBDEV_0 = 2 -}; -static inline unsigned NI_660X_GPCT_SUBDEV(unsigned index) -{ - return NI_660X_GPCT_SUBDEV_0 + index; -} - struct ni_660x_register_data { int offset; /* Offset from base address from GPCT chip */ char size; /* 2 or 4 bytes */ @@ -694,9 +685,10 @@ static irqreturn_t ni_660x_interrupt(int irq, void *d) /* lock to avoid race with comedi_poll */ spin_lock_irqsave(&devpriv->interrupt_lock, flags); smp_mb(); - for (i = 0; i < ni_660x_num_counters(dev); ++i) { - s = &dev->subdevices[NI_660X_GPCT_SUBDEV(i)]; - ni_660x_handle_gpct_interrupt(dev, s); + for (i = 0; i < dev->n_subdevices; ++i) { + s = &dev->subdevices[i]; + if (s->type == COMEDI_SUBD_COUNTER) + ni_660x_handle_gpct_interrupt(dev, s); } spin_unlock_irqrestore(&devpriv->interrupt_lock, flags); return IRQ_HANDLED; @@ -935,6 +927,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, const struct ni_660x_board *board = NULL; struct ni_660x_private *devpriv; struct comedi_subdevice *s; + int subdev; int ret; unsigned i; unsigned global_interrupt_config_bits; @@ -971,11 +964,13 @@ static int ni_660x_auto_attach(struct comedi_device *dev, if (ret) return ret; - s = &dev->subdevices[0]; + subdev = 0; + + s = &dev->subdevices[subdev++]; /* Old GENERAL-PURPOSE COUNTER/TIME (GPCT) subdevice, no longer used */ s->type = COMEDI_SUBD_UNUSED; - s = &dev->subdevices[NI_660X_DIO_SUBDEV]; + s = &dev->subdevices[subdev++]; /* DIGITAL I/O SUBDEVICE */ s->type = COMEDI_SUBD_DIO; s->subdev_flags = SDF_READABLE | SDF_WRITABLE; @@ -1000,7 +995,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, if (!devpriv->counter_dev) return -ENOMEM; for (i = 0; i < NI_660X_MAX_NUM_COUNTERS; ++i) { - s = &dev->subdevices[NI_660X_GPCT_SUBDEV(i)]; + s = &dev->subdevices[subdev++]; if (i < ni_660x_num_counters(dev)) { s->type = COMEDI_SUBD_COUNTER; s->subdev_flags = SDF_READABLE | SDF_WRITABLE | -- cgit v0.10.2 From b15f5069087128d42d2e00b6b1c666fd3ec42bfe Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:28 -0700 Subject: staging: comedi: ni_660x: remove ni_660x_num_counters() This inline function is only used by the (*auto_attach). Remove it and just use a local variable for the calculation. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 595c862..6a3a12e 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -342,13 +342,6 @@ struct ni_660x_private { unsigned short pfi_output_selects[NUM_PFI_CHANNELS]; }; -static inline unsigned ni_660x_num_counters(struct comedi_device *dev) -{ - const struct ni_660x_board *board = dev->board_ptr; - - return board->n_chips * counters_per_chip; -} - static enum ni_660x_register ni_gpct_to_660x_register(enum ni_gpct_register reg) { switch (reg) { @@ -927,6 +920,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, const struct ni_660x_board *board = NULL; struct ni_660x_private *devpriv; struct comedi_subdevice *s; + unsigned int n_counters; int subdev; int ret; unsigned i; @@ -986,17 +980,17 @@ static int ni_660x_auto_attach(struct comedi_device *dev, */ ni_660x_write(dev, 0, 0, NI660X_STC_DIO_CONTROL); + n_counters = board->n_chips * counters_per_chip; devpriv->counter_dev = ni_gpct_device_construct(dev, ni_660x_gpct_write, ni_660x_gpct_read, ni_gpct_variant_660x, - ni_660x_num_counters - (dev)); + n_counters); if (!devpriv->counter_dev) return -ENOMEM; for (i = 0; i < NI_660X_MAX_NUM_COUNTERS; ++i) { s = &dev->subdevices[subdev++]; - if (i < ni_660x_num_counters(dev)) { + if (i < n_counters) { s->type = COMEDI_SUBD_COUNTER; s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL | SDF_CMD_READ; @@ -1025,7 +1019,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, for (i = 0; i < board->n_chips; ++i) init_tio_chip(dev, i); - for (i = 0; i < ni_660x_num_counters(dev); ++i) + for (i = 0; i < n_counters; ++i) ni_tio_init_counter(&devpriv->counter_dev->counters[i]); for (i = 0; i < NUM_PFI_CHANNELS; ++i) { -- cgit v0.10.2 From 2225320ec8cc7f99c05ff217343eb63d5319c314 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:29 -0700 Subject: staging: comedi: ni_660x: Prefer 'unsigned int' to bare use of 'unsigned' Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 6a3a12e..6ca5c67 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -299,7 +299,7 @@ enum ni_660x_boardid { struct ni_660x_board { const char *name; - unsigned n_chips; /* total number of TIO chips */ + unsigned int n_chips; /* total number of TIO chips */ }; static const struct ni_660x_board ni_660x_boards[] = { @@ -337,7 +337,7 @@ struct ni_660x_private { spinlock_t mite_channel_lock; /* interrupt_lock prevents races between interrupt and comedi_poll */ spinlock_t interrupt_lock; - unsigned dma_cfg[NI_660X_MAX_NUM_CHIPS]; + unsigned int dma_cfg[NI_660X_MAX_NUM_CHIPS]; spinlock_t soft_reg_copy_lock; unsigned short pfi_output_selects[NUM_PFI_CHANNELS]; }; @@ -533,17 +533,17 @@ static inline struct mite_dma_descriptor_ring *mite_ring(struct ni_660x_private struct ni_gpct *counter) { - unsigned chip = counter->chip_index; + unsigned int chip = counter->chip_index; return priv->mite_rings[chip][counter->counter_index]; } static inline void ni_660x_set_dma_channel(struct comedi_device *dev, - unsigned mite_channel, + unsigned int mite_channel, struct ni_gpct *counter) { struct ni_660x_private *devpriv = dev->private; - unsigned chip = counter->chip_index; + unsigned int chip = counter->chip_index; unsigned long flags; spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); @@ -558,11 +558,11 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev, } static inline void ni_660x_unset_dma_channel(struct comedi_device *dev, - unsigned mite_channel, + unsigned int mite_channel, struct ni_gpct *counter) { struct ni_660x_private *devpriv = dev->private; - unsigned chip = counter->chip_index; + unsigned int chip = counter->chip_index; unsigned long flags; spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); @@ -642,7 +642,7 @@ static int ni_660x_cancel(struct comedi_device *dev, struct comedi_subdevice *s) static void set_tio_counterswap(struct comedi_device *dev, int chip) { - unsigned bits = 0; + unsigned int bits = 0; /* * See P. 3.5 of the Register-Level Programming manual. @@ -670,7 +670,7 @@ static irqreturn_t ni_660x_interrupt(int irq, void *d) struct comedi_device *dev = d; struct ni_660x_private *devpriv = dev->private; struct comedi_subdevice *s; - unsigned i; + unsigned int i; unsigned long flags; if (!dev->attached) @@ -718,7 +718,7 @@ static int ni_660x_buf_change(struct comedi_device *dev, static int ni_660x_allocate_private(struct comedi_device *dev) { struct ni_660x_private *devpriv; - unsigned i; + unsigned int i; devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); if (!devpriv) @@ -737,8 +737,8 @@ static int ni_660x_alloc_mite_rings(struct comedi_device *dev) { const struct ni_660x_board *board = dev->board_ptr; struct ni_660x_private *devpriv = dev->private; - unsigned i; - unsigned j; + unsigned int i; + unsigned int j; for (i = 0; i < board->n_chips; ++i) { for (j = 0; j < counters_per_chip; ++j) { @@ -755,8 +755,8 @@ static void ni_660x_free_mite_rings(struct comedi_device *dev) { const struct ni_660x_board *board = dev->board_ptr; struct ni_660x_private *devpriv = dev->private; - unsigned i; - unsigned j; + unsigned int i; + unsigned int j; for (i = 0; i < board->n_chips; ++i) { for (j = 0; j < counters_per_chip; ++j) @@ -767,7 +767,7 @@ static void ni_660x_free_mite_rings(struct comedi_device *dev) static void init_tio_chip(struct comedi_device *dev, int chipset) { struct ni_660x_private *devpriv = dev->private; - unsigned i; + unsigned int i; /* init dma configuration register */ devpriv->dma_cfg[chipset] = 0; @@ -782,7 +782,7 @@ static int ni_660x_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { - unsigned base_bitfield_channel = CR_CHAN(insn->chanspec); + unsigned int base_bitfield_channel = CR_CHAN(insn->chanspec); /* Check if we have to write some bits */ if (data[0]) { @@ -836,8 +836,8 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, ni_660x_write(dev, active_chip, bits, NI660X_IO_CFG(chan)); } -static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned chan, - unsigned source) +static int ni_660x_set_pfi_routing(struct comedi_device *dev, + unsigned int chan, unsigned int source) { struct ni_660x_private *devpriv = dev->private; @@ -923,8 +923,8 @@ static int ni_660x_auto_attach(struct comedi_device *dev, unsigned int n_counters; int subdev; int ret; - unsigned i; - unsigned global_interrupt_config_bits; + unsigned int i; + unsigned int global_interrupt_config_bits; if (context < ARRAY_SIZE(ni_660x_boards)) board = &ni_660x_boards[context]; -- cgit v0.10.2 From cded944fa90cf8105eedb5766ecaee82a2f86b3a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:30 -0700 Subject: staging: comedi: ni_660x: Prefer kernel type 'u64' over 'uint64_t' Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 6ca5c67..4f7f5ca 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -331,7 +331,7 @@ static const struct ni_660x_board ni_660x_boards[] = { struct ni_660x_private { struct mite_struct *mite; struct ni_gpct_device *counter_dev; - uint64_t pfi_direction_bits; + u64 pfi_direction_bits; struct mite_dma_descriptor_ring *mite_rings[NI_660X_MAX_NUM_CHIPS][counters_per_chip]; spinlock_t mite_channel_lock; @@ -854,7 +854,7 @@ static int ni_660x_set_pfi_routing(struct comedi_device *dev, } devpriv->pfi_output_selects[chan] = source; - if (devpriv->pfi_direction_bits & (((uint64_t) 1) << chan)) + if (devpriv->pfi_direction_bits & (1ULL << chan)) ni_660x_select_pfi_output(dev, chan, devpriv->pfi_output_selects[chan]); return 0; @@ -867,7 +867,7 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, { struct ni_660x_private *devpriv = dev->private; unsigned int chan = CR_CHAN(insn->chanspec); - uint64_t bit = 1ULL << chan; + u64 bit = 1ULL << chan; unsigned int val; int ret; -- cgit v0.10.2 From 7e9061869435dbeefff970b032d2b8141ce9e301 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:31 -0700 Subject: staging: comedi: ni_660x: tidy up Digital I/O subdevice init Add some whitespace to the Digital I/O subdevice init and add a comment about the channels. This driver is a bit goofy, only 32 of the 40 channels can actually be used for Digital I/Os and 32 of them can be routed to the counters for alternate use. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 4f7f5ca..f24009c 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -964,15 +964,67 @@ static int ni_660x_auto_attach(struct comedi_device *dev, /* Old GENERAL-PURPOSE COUNTER/TIME (GPCT) subdevice, no longer used */ s->type = COMEDI_SUBD_UNUSED; + /* + * Digital I/O subdevice + * + * There are 40 channels but only the first 32 can be digital I/Os. + * The last 8 are dedicated to counters 0 and 1. + * + * Counter 0-3 signals are from the first TIO chip. + * Counter 4-7 signals are from the second TIO chip. + * + * Comedi External + * PFI Chan DIO Chan Counter Signal + * ------- -------- -------------- + * 0 0 + * 1 1 + * 2 2 + * 3 3 + * 4 4 + * 5 5 + * 6 6 + * 7 7 + * 8 8 CTR 7 OUT + * 9 9 CTR 7 AUX + * 10 10 CTR 7 GATE + * 11 11 CTR 7 SOURCE + * 12 12 CTR 6 OUT + * 13 13 CTR 6 AUX + * 14 14 CTR 6 GATE + * 15 15 CTR 6 SOURCE + * 16 16 CTR 5 OUT + * 17 17 CTR 5 AUX + * 18 18 CTR 5 GATE + * 19 19 CTR 5 SOURCE + * 20 20 CTR 4 OUT + * 21 21 CTR 4 AUX + * 22 22 CTR 4 GATE + * 23 23 CTR 4 SOURCE + * 24 24 CTR 3 OUT + * 25 25 CTR 3 AUX + * 26 26 CTR 3 GATE + * 27 27 CTR 3 SOURCE + * 28 28 CTR 2 OUT + * 29 29 CTR 2 AUX + * 30 30 CTR 2 GATE + * 31 31 CTR 2 SOURCE + * 32 CTR 1 OUT + * 33 CTR 1 AUX + * 34 CTR 1 GATE + * 35 CTR 1 SOURCE + * 36 CTR 0 OUT + * 37 CTR 0 AUX + * 38 CTR 0 GATE + * 39 CTR 0 SOURCE + */ s = &dev->subdevices[subdev++]; - /* DIGITAL I/O SUBDEVICE */ - s->type = COMEDI_SUBD_DIO; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE; - s->n_chan = NUM_PFI_CHANNELS; - s->maxdata = 1; - s->range_table = &range_digital; - s->insn_bits = ni_660x_dio_insn_bits; - s->insn_config = ni_660x_dio_insn_config; + s->type = COMEDI_SUBD_DIO; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE; + s->n_chan = NUM_PFI_CHANNELS; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = ni_660x_dio_insn_bits; + s->insn_config = ni_660x_dio_insn_config; /* * We use the ioconfig registers to control dio direction, so zero -- cgit v0.10.2 From 826f783a0eb15c6860d03af6d88eea3eaea34ff4 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:32 -0700 Subject: staging: comedi: ni_660x: tidy up ni_660x_dio_insn_bits() Use some local variables to clarify this function. This (*insn_bits) function is a bit different from most comedi drivers. Add some comments to clarify why the shifts are used. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index f24009c..f614927 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -780,21 +780,30 @@ static void init_tio_chip(struct comedi_device *dev, int chipset) static int ni_660x_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_insn *insn, + unsigned int *data) { - unsigned int base_bitfield_channel = CR_CHAN(insn->chanspec); + unsigned int shift = CR_CHAN(insn->chanspec); + unsigned int mask = data[0] << shift; + unsigned int bits = data[1] << shift; - /* Check if we have to write some bits */ - if (data[0]) { - s->state &= ~(data[0] << base_bitfield_channel); - s->state |= (data[0] & data[1]) << base_bitfield_channel; - /* Write out the new digital output lines */ + /* + * There are 40 channels in this subdevice but only 32 are usable + * as DIO. The shift adjusts the mask/bits to account for the base + * channel in insn->chanspec. The state update can then be handled + * normally for the 32 usable channels. + */ + if (mask) { + s->state &= ~mask; + s->state |= (bits & mask); ni_660x_write(dev, 0, s->state, NI660X_DIO32_OUTPUT); } - /* on return, data[1] contains the value of the digital - * input and output lines. */ - data[1] = (ni_660x_read(dev, 0, NI660X_DIO32_INPUT) >> - base_bitfield_channel); + + /* + * Return the input channels, shifted back to account for the base + * channel. + */ + data[1] = ni_660x_read(dev, 0, NI660X_DIO32_INPUT) >> shift; return insn->n; } -- cgit v0.10.2 From aa94f288882583fb2a214110ad021a75e78ff809 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:33 -0700 Subject: staging: comedi: ni_660x: tidy up ni_660x_set_pfi_routing() Use the comedi.h provided constants (enum ni_660x_pfi_routing) instead of defining new ones for the output sources. Use a switch to clarify the channel/source validation. For aesthetics, rename the private data members 'pfi_output_selects' and 'pfi_direction_bits'. Remove the 'min_counter_pfi_chan' and 'max_dio_pfi_chan' from enum ni_660x_constants. The open coded values make the code easier to follow. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index f614927..3415a15 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -42,8 +42,6 @@ #include "ni_tio.h" enum ni_660x_constants { - min_counter_pfi_chan = 8, - max_dio_pfi_chan = 31, counters_per_chip = 4 }; @@ -172,10 +170,6 @@ enum ni_660x_register { #define NI660X_IO_CFG(x) (NI660X_IO_CFG_0_1 + ((x) / 2)) #define NI660X_IO_CFG_OUT_SEL(_c, _s) (((_s) & 0x3) << (((_c) % 2) ? 0 : 8)) #define NI660X_IO_CFG_OUT_SEL_MASK(_c) NI660X_IO_CFG_OUT_SEL((_c), 0x3) -#define NI660X_IO_CFG_OUT_SEL_HIGH_Z 0 -#define NI660X_IO_CFG_OUT_SEL_COUNTER 1 -#define NI660X_IO_CFG_OUT_SEL_DO 2 -#define NI660X_IO_CFG_OUT_SEL_MAX 3 #define NI660X_IO_CFG_IN_SEL(_c, _s) (((_s) & 0x7) << (((_c) % 2) ? 4 : 12)) #define NI660X_IO_CFG_IN_SEL_MASK(_c) NI660X_IO_CFG_IN_SEL((_c), 0x7) @@ -331,7 +325,6 @@ static const struct ni_660x_board ni_660x_boards[] = { struct ni_660x_private { struct mite_struct *mite; struct ni_gpct_device *counter_dev; - u64 pfi_direction_bits; struct mite_dma_descriptor_ring *mite_rings[NI_660X_MAX_NUM_CHIPS][counters_per_chip]; spinlock_t mite_channel_lock; @@ -339,7 +332,8 @@ struct ni_660x_private { spinlock_t interrupt_lock; unsigned int dma_cfg[NI_660X_MAX_NUM_CHIPS]; spinlock_t soft_reg_copy_lock; - unsigned short pfi_output_selects[NUM_PFI_CHANNELS]; + unsigned int io_cfg[NUM_PFI_CHANNELS]; + u64 io_dir; }; static enum ni_660x_register ni_gpct_to_660x_register(enum ni_gpct_register reg) @@ -728,7 +722,7 @@ static int ni_660x_allocate_private(struct comedi_device *dev) spin_lock_init(&devpriv->interrupt_lock); spin_lock_init(&devpriv->soft_reg_copy_lock); for (i = 0; i < NUM_PFI_CHANNELS; ++i) - devpriv->pfi_output_selects[i] = NI660X_IO_CFG_OUT_SEL_COUNTER; + devpriv->io_cfg[i] = NI_660X_PFI_OUTPUT_COUNTER; return 0; } @@ -817,7 +811,7 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, unsigned int bits; if (board->n_chips > 1) { - if (out_sel == NI660X_IO_CFG_OUT_SEL_COUNTER && + if (out_sel == NI_660X_PFI_OUTPUT_COUNTER && chan >= 8 && chan <= 23) { /* counters 4-7 pfi channels */ active_chip = 1; @@ -833,8 +827,7 @@ static void ni_660x_select_pfi_output(struct comedi_device *dev, /* set the pfi channel to high-z on the inactive chip */ bits = ni_660x_read(dev, idle_chip, NI660X_IO_CFG(chan)); bits &= ~NI660X_IO_CFG_OUT_SEL_MASK(chan); - bits |= NI660X_IO_CFG_OUT_SEL(chan, - NI660X_IO_CFG_OUT_SEL_HIGH_Z); + bits |= NI660X_IO_CFG_OUT_SEL(chan, 0); /* high-z */ ni_660x_write(dev, idle_chip, bits, NI660X_IO_CFG(chan)); } @@ -850,22 +843,21 @@ static int ni_660x_set_pfi_routing(struct comedi_device *dev, { struct ni_660x_private *devpriv = dev->private; - if (source > NI660X_IO_CFG_OUT_SEL_MAX) - return -EINVAL; - if (source == NI660X_IO_CFG_OUT_SEL_HIGH_Z) - return -EINVAL; - if (chan < min_counter_pfi_chan) { - if (source == NI660X_IO_CFG_OUT_SEL_COUNTER) + switch (source) { + case NI_660X_PFI_OUTPUT_COUNTER: + if (chan < 8) return -EINVAL; - } else if (chan > max_dio_pfi_chan) { - if (source == NI660X_IO_CFG_OUT_SEL_DO) + break; + case NI_660X_PFI_OUTPUT_DIO: + if (chan > 31) return -EINVAL; + default: + return -EINVAL; } - devpriv->pfi_output_selects[chan] = source; - if (devpriv->pfi_direction_bits & (1ULL << chan)) - ni_660x_select_pfi_output(dev, chan, - devpriv->pfi_output_selects[chan]); + devpriv->io_cfg[chan] = source; + if (devpriv->io_dir & (1ULL << chan)) + ni_660x_select_pfi_output(dev, chan, devpriv->io_cfg[chan]); return 0; } @@ -882,20 +874,18 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, switch (data[0]) { case INSN_CONFIG_DIO_OUTPUT: - devpriv->pfi_direction_bits |= bit; - ni_660x_select_pfi_output(dev, chan, - devpriv->pfi_output_selects[chan]); + devpriv->io_dir |= bit; + ni_660x_select_pfi_output(dev, chan, devpriv->io_cfg[chan]); break; case INSN_CONFIG_DIO_INPUT: - devpriv->pfi_direction_bits &= ~bit; - ni_660x_select_pfi_output(dev, chan, - NI660X_IO_CFG_OUT_SEL_HIGH_Z); + devpriv->io_dir &= ~bit; + ni_660x_select_pfi_output(dev, chan, 0); /* high-z */ break; case INSN_CONFIG_DIO_QUERY: - data[1] = (devpriv->pfi_direction_bits & bit) ? COMEDI_OUTPUT - : COMEDI_INPUT; + data[1] = (devpriv->io_dir & bit) ? COMEDI_OUTPUT + : COMEDI_INPUT; break; case INSN_CONFIG_SET_ROUTING: @@ -905,7 +895,7 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, break; case INSN_CONFIG_GET_ROUTING: - data[1] = devpriv->pfi_output_selects[chan]; + data[1] = devpriv->io_cfg[chan]; break; case INSN_CONFIG_FILTER: @@ -1084,13 +1074,12 @@ static int ni_660x_auto_attach(struct comedi_device *dev, ni_tio_init_counter(&devpriv->counter_dev->counters[i]); for (i = 0; i < NUM_PFI_CHANNELS; ++i) { - if (i < min_counter_pfi_chan) - ni_660x_set_pfi_routing(dev, i, - NI660X_IO_CFG_OUT_SEL_DO); + if (i < 8) + ni_660x_set_pfi_routing(dev, i, NI_660X_PFI_OUTPUT_DIO); else ni_660x_set_pfi_routing(dev, i, - NI660X_IO_CFG_OUT_SEL_COUNTER); - ni_660x_select_pfi_output(dev, i, NI660X_IO_CFG_OUT_SEL_HIGH_Z); + NI_660X_PFI_OUTPUT_COUNTER); + ni_660x_select_pfi_output(dev, i, 0); /* high-z */ } /* -- cgit v0.10.2 From f0c9305ede52b42021ea53a33b3a2878e0c5d51e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:34 -0700 Subject: staging: comedi: ni_660x: add a comment about the initial DIO state The (*auto_attach) initializes all the DIO channels to a default state. Add a comment for clarity. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 3415a15..6f84946 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -1073,6 +1073,11 @@ static int ni_660x_auto_attach(struct comedi_device *dev, for (i = 0; i < n_counters; ++i) ni_tio_init_counter(&devpriv->counter_dev->counters[i]); + /* + * Default the DIO channels as: + * chan 0-7: DIO inputs + * chan 8-39: counter signal inputs + */ for (i = 0; i < NUM_PFI_CHANNELS; ++i) { if (i < 8) ni_660x_set_pfi_routing(dev, i, NI_660X_PFI_OUTPUT_DIO); -- cgit v0.10.2 From 0c9434e352d0ae9ddb84a89716e1d1e82f3185f1 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:35 -0700 Subject: staging: comedi: ni_660x: refactor ni_gpct_to_660x_register() Convert this big switch into an array and refactor ni_660x_gpct_{write,read}() functions to use the array to find the register offset. All the TIO (GPCT) registers are included in the array except for NITIO_G0_ABZ and NITIO_G1_ABZ. These registers only exist on the ni_pcimio m-series boards and this driver will never read/write them. Just in case someone adds a new entry to the enum ni_gpct_register in ni_tio.h, add a dev_warn() for any unhandled registers. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 6f84946..3edea99 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -279,6 +279,77 @@ static const struct ni_660x_register_data ni_660x_reg_data[NI660X_NUM_REGS] = { [NI660X_IO_CFG_38_39] = { 0x7a2, 2 } /* read/write */ }; +static const enum ni_660x_register ni_gpct_to_660x_register[] = { + [NITIO_G0_AUTO_INC] = NI660X_G0_AUTO_INC, + [NITIO_G1_AUTO_INC] = NI660X_G1_AUTO_INC, + [NITIO_G2_AUTO_INC] = NI660X_G2_AUTO_INC, + [NITIO_G3_AUTO_INC] = NI660X_G3_AUTO_INC, + [NITIO_G0_CMD] = NI660X_G0_CMD, + [NITIO_G1_CMD] = NI660X_G1_CMD, + [NITIO_G2_CMD] = NI660X_G2_CMD, + [NITIO_G3_CMD] = NI660X_G3_CMD, + [NITIO_G0_HW_SAVE] = NI660X_G0_HW_SAVE, + [NITIO_G1_HW_SAVE] = NI660X_G1_HW_SAVE, + [NITIO_G2_HW_SAVE] = NI660X_G2_HW_SAVE, + [NITIO_G3_HW_SAVE] = NI660X_G3_HW_SAVE, + [NITIO_G0_SW_SAVE] = NI660X_G0_SW_SAVE, + [NITIO_G1_SW_SAVE] = NI660X_G1_SW_SAVE, + [NITIO_G2_SW_SAVE] = NI660X_G2_SW_SAVE, + [NITIO_G3_SW_SAVE] = NI660X_G3_SW_SAVE, + [NITIO_G0_MODE] = NI660X_G0_MODE, + [NITIO_G1_MODE] = NI660X_G1_MODE, + [NITIO_G2_MODE] = NI660X_G2_MODE, + [NITIO_G3_MODE] = NI660X_G3_MODE, + [NITIO_G0_LOADA] = NI660X_G0_LOADA, + [NITIO_G1_LOADA] = NI660X_G1_LOADA, + [NITIO_G2_LOADA] = NI660X_G2_LOADA, + [NITIO_G3_LOADA] = NI660X_G3_LOADA, + [NITIO_G0_LOADB] = NI660X_G0_LOADB, + [NITIO_G1_LOADB] = NI660X_G1_LOADB, + [NITIO_G2_LOADB] = NI660X_G2_LOADB, + [NITIO_G3_LOADB] = NI660X_G3_LOADB, + [NITIO_G0_INPUT_SEL] = NI660X_G0_INPUT_SEL, + [NITIO_G1_INPUT_SEL] = NI660X_G1_INPUT_SEL, + [NITIO_G2_INPUT_SEL] = NI660X_G2_INPUT_SEL, + [NITIO_G3_INPUT_SEL] = NI660X_G3_INPUT_SEL, + [NITIO_G0_CNT_MODE] = NI660X_G0_CNT_MODE, + [NITIO_G1_CNT_MODE] = NI660X_G1_CNT_MODE, + [NITIO_G2_CNT_MODE] = NI660X_G2_CNT_MODE, + [NITIO_G3_CNT_MODE] = NI660X_G3_CNT_MODE, + [NITIO_G0_GATE2] = NI660X_G0_GATE2, + [NITIO_G1_GATE2] = NI660X_G1_GATE2, + [NITIO_G2_GATE2] = NI660X_G2_GATE2, + [NITIO_G3_GATE2] = NI660X_G3_GATE2, + [NITIO_G01_STATUS] = NI660X_G01_STATUS, + [NITIO_G23_STATUS] = NI660X_G23_STATUS, + [NITIO_G01_RESET] = NI660X_G01_RESET, + [NITIO_G23_RESET] = NI660X_G23_RESET, + [NITIO_G01_STATUS1] = NI660X_G01_STATUS1, + [NITIO_G23_STATUS1] = NI660X_G23_STATUS1, + [NITIO_G01_STATUS2] = NI660X_G01_STATUS2, + [NITIO_G23_STATUS2] = NI660X_G23_STATUS2, + [NITIO_G0_DMA_CFG] = NI660X_G0_DMA_CFG, + [NITIO_G1_DMA_CFG] = NI660X_G1_DMA_CFG, + [NITIO_G2_DMA_CFG] = NI660X_G2_DMA_CFG, + [NITIO_G3_DMA_CFG] = NI660X_G3_DMA_CFG, + [NITIO_G0_DMA_STATUS] = NI660X_G0_DMA_STATUS, + [NITIO_G1_DMA_STATUS] = NI660X_G1_DMA_STATUS, + [NITIO_G2_DMA_STATUS] = NI660X_G2_DMA_STATUS, + [NITIO_G3_DMA_STATUS] = NI660X_G3_DMA_STATUS, + [NITIO_G0_INT_ACK] = NI660X_G0_INT_ACK, + [NITIO_G1_INT_ACK] = NI660X_G1_INT_ACK, + [NITIO_G2_INT_ACK] = NI660X_G2_INT_ACK, + [NITIO_G3_INT_ACK] = NI660X_G3_INT_ACK, + [NITIO_G0_STATUS] = NI660X_G0_STATUS, + [NITIO_G1_STATUS] = NI660X_G1_STATUS, + [NITIO_G2_STATUS] = NI660X_G2_STATUS, + [NITIO_G3_STATUS] = NI660X_G3_STATUS, + [NITIO_G0_INT_ENA] = NI660X_G0_INT_ENA, + [NITIO_G1_INT_ENA] = NI660X_G1_INT_ENA, + [NITIO_G2_INT_ENA] = NI660X_G2_INT_ENA, + [NITIO_G3_INT_ENA] = NI660X_G3_INT_ENA, +}; + /* Offset of the GPCT chips from the base-address of the card */ /* First chip is at base-address + 0x00, etc. */ static const unsigned GPCT_OFFSET[2] = { 0x0, 0x800 }; @@ -336,151 +407,6 @@ struct ni_660x_private { u64 io_dir; }; -static enum ni_660x_register ni_gpct_to_660x_register(enum ni_gpct_register reg) -{ - switch (reg) { - case NITIO_G0_AUTO_INC: - return NI660X_G0_AUTO_INC; - case NITIO_G1_AUTO_INC: - return NI660X_G1_AUTO_INC; - case NITIO_G2_AUTO_INC: - return NI660X_G2_AUTO_INC; - case NITIO_G3_AUTO_INC: - return NI660X_G3_AUTO_INC; - case NITIO_G0_CMD: - return NI660X_G0_CMD; - case NITIO_G1_CMD: - return NI660X_G1_CMD; - case NITIO_G2_CMD: - return NI660X_G2_CMD; - case NITIO_G3_CMD: - return NI660X_G3_CMD; - case NITIO_G0_HW_SAVE: - return NI660X_G0_HW_SAVE; - case NITIO_G1_HW_SAVE: - return NI660X_G1_HW_SAVE; - case NITIO_G2_HW_SAVE: - return NI660X_G2_HW_SAVE; - case NITIO_G3_HW_SAVE: - return NI660X_G3_HW_SAVE; - case NITIO_G0_SW_SAVE: - return NI660X_G0_SW_SAVE; - case NITIO_G1_SW_SAVE: - return NI660X_G1_SW_SAVE; - case NITIO_G2_SW_SAVE: - return NI660X_G2_SW_SAVE; - case NITIO_G3_SW_SAVE: - return NI660X_G3_SW_SAVE; - case NITIO_G0_MODE: - return NI660X_G0_MODE; - case NITIO_G1_MODE: - return NI660X_G1_MODE; - case NITIO_G2_MODE: - return NI660X_G2_MODE; - case NITIO_G3_MODE: - return NI660X_G3_MODE; - case NITIO_G0_LOADA: - return NI660X_G0_LOADA; - case NITIO_G1_LOADA: - return NI660X_G1_LOADA; - case NITIO_G2_LOADA: - return NI660X_G2_LOADA; - case NITIO_G3_LOADA: - return NI660X_G3_LOADA; - case NITIO_G0_LOADB: - return NI660X_G0_LOADB; - case NITIO_G1_LOADB: - return NI660X_G1_LOADB; - case NITIO_G2_LOADB: - return NI660X_G2_LOADB; - case NITIO_G3_LOADB: - return NI660X_G3_LOADB; - case NITIO_G0_INPUT_SEL: - return NI660X_G0_INPUT_SEL; - case NITIO_G1_INPUT_SEL: - return NI660X_G1_INPUT_SEL; - case NITIO_G2_INPUT_SEL: - return NI660X_G2_INPUT_SEL; - case NITIO_G3_INPUT_SEL: - return NI660X_G3_INPUT_SEL; - case NITIO_G01_STATUS: - return NI660X_G01_STATUS; - case NITIO_G23_STATUS: - return NI660X_G23_STATUS; - case NITIO_G01_RESET: - return NI660X_G01_RESET; - case NITIO_G23_RESET: - return NI660X_G23_RESET; - case NITIO_G01_STATUS1: - return NI660X_G01_STATUS1; - case NITIO_G23_STATUS1: - return NI660X_G23_STATUS1; - case NITIO_G01_STATUS2: - return NI660X_G01_STATUS2; - case NITIO_G23_STATUS2: - return NI660X_G23_STATUS2; - case NITIO_G0_CNT_MODE: - return NI660X_G0_CNT_MODE; - case NITIO_G1_CNT_MODE: - return NI660X_G1_CNT_MODE; - case NITIO_G2_CNT_MODE: - return NI660X_G2_CNT_MODE; - case NITIO_G3_CNT_MODE: - return NI660X_G3_CNT_MODE; - case NITIO_G0_GATE2: - return NI660X_G0_GATE2; - case NITIO_G1_GATE2: - return NI660X_G1_GATE2; - case NITIO_G2_GATE2: - return NI660X_G2_GATE2; - case NITIO_G3_GATE2: - return NI660X_G3_GATE2; - case NITIO_G0_DMA_CFG: - return NI660X_G0_DMA_CFG; - case NITIO_G0_DMA_STATUS: - return NI660X_G0_DMA_STATUS; - case NITIO_G1_DMA_CFG: - return NI660X_G1_DMA_CFG; - case NITIO_G1_DMA_STATUS: - return NI660X_G1_DMA_STATUS; - case NITIO_G2_DMA_CFG: - return NI660X_G2_DMA_CFG; - case NITIO_G2_DMA_STATUS: - return NI660X_G2_DMA_STATUS; - case NITIO_G3_DMA_CFG: - return NI660X_G3_DMA_CFG; - case NITIO_G3_DMA_STATUS: - return NI660X_G3_DMA_STATUS; - case NITIO_G0_INT_ACK: - return NI660X_G0_INT_ACK; - case NITIO_G1_INT_ACK: - return NI660X_G1_INT_ACK; - case NITIO_G2_INT_ACK: - return NI660X_G2_INT_ACK; - case NITIO_G3_INT_ACK: - return NI660X_G3_INT_ACK; - case NITIO_G0_STATUS: - return NI660X_G0_STATUS; - case NITIO_G1_STATUS: - return NI660X_G1_STATUS; - case NITIO_G2_STATUS: - return NI660X_G2_STATUS; - case NITIO_G3_STATUS: - return NI660X_G3_STATUS; - case NITIO_G0_INT_ENA: - return NI660X_G0_INT_ENA; - case NITIO_G1_INT_ENA: - return NI660X_G1_INT_ENA; - case NITIO_G2_INT_ENA: - return NI660X_G2_INT_ENA; - case NITIO_G3_INT_ENA: - return NI660X_G3_INT_ENA; - default: - BUG(); - return 0; - } -} - static void ni_660x_write(struct comedi_device *dev, unsigned int chip, unsigned int bits, enum ni_660x_register reg) @@ -508,7 +434,15 @@ static void ni_660x_gpct_write(struct ni_gpct *counter, unsigned int bits, enum ni_gpct_register reg) { struct comedi_device *dev = counter->counter_dev->dev; - enum ni_660x_register ni_660x_register = ni_gpct_to_660x_register(reg); + enum ni_660x_register ni_660x_register; + + if (reg < ARRAY_SIZE(ni_gpct_to_660x_register)) { + ni_660x_register = ni_gpct_to_660x_register[reg]; + } else { + dev_warn(dev->class_dev, "%s: unhandled register=0x%x\n", + __func__, reg); + return; + } ni_660x_write(dev, counter->chip_index, bits, ni_660x_register); } @@ -517,7 +451,15 @@ static unsigned int ni_660x_gpct_read(struct ni_gpct *counter, enum ni_gpct_register reg) { struct comedi_device *dev = counter->counter_dev->dev; - enum ni_660x_register ni_660x_register = ni_gpct_to_660x_register(reg); + enum ni_660x_register ni_660x_register; + + if (reg < ARRAY_SIZE(ni_gpct_to_660x_register)) { + ni_660x_register = ni_gpct_to_660x_register[reg]; + } else { + dev_warn(dev->class_dev, "%s: unhandled register=0x%x\n", + __func__, reg); + return 0; + } return ni_660x_read(dev, counter->chip_index, ni_660x_register); } -- cgit v0.10.2 From e8f6e2b98d164d94bc29bb488413301d26cc5b3c Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:36 -0700 Subject: staging: comedi: ni_660x: add comments for the spinlock_t definitions Fix the checkpatch.pl issues: CHECK: spinlock_t definition without comment For aesthetics, rename the 'soft_reg_copy_lock' to clarify what it's used for. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 3edea99..2926d26 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -398,11 +398,13 @@ struct ni_660x_private { struct ni_gpct_device *counter_dev; struct mite_dma_descriptor_ring *mite_rings[NI_660X_MAX_NUM_CHIPS][counters_per_chip]; + /* protects mite channel request/release */ spinlock_t mite_channel_lock; - /* interrupt_lock prevents races between interrupt and comedi_poll */ + /* prevents races between interrupt and comedi_poll */ spinlock_t interrupt_lock; + /* protects dma_cfg changes */ + spinlock_t dma_cfg_lock; unsigned int dma_cfg[NI_660X_MAX_NUM_CHIPS]; - spinlock_t soft_reg_copy_lock; unsigned int io_cfg[NUM_PFI_CHANNELS]; u64 io_dir; }; @@ -482,7 +484,7 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev, unsigned int chip = counter->chip_index; unsigned long flags; - spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); + spin_lock_irqsave(&devpriv->dma_cfg_lock, flags); devpriv->dma_cfg[chip] &= ~NI660X_DMA_CFG_SEL_MASK(mite_channel); devpriv->dma_cfg[chip] |= NI660X_DMA_CFG_SEL(mite_channel, counter->counter_index); @@ -490,7 +492,7 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev, NI660X_DMA_CFG_RESET(mite_channel), NI660X_DMA_CFG); mmiowb(); - spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); + spin_unlock_irqrestore(&devpriv->dma_cfg_lock, flags); } static inline void ni_660x_unset_dma_channel(struct comedi_device *dev, @@ -501,12 +503,12 @@ static inline void ni_660x_unset_dma_channel(struct comedi_device *dev, unsigned int chip = counter->chip_index; unsigned long flags; - spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); + spin_lock_irqsave(&devpriv->dma_cfg_lock, flags); devpriv->dma_cfg[chip] &= ~NI660X_DMA_CFG_SEL_MASK(mite_channel); devpriv->dma_cfg[chip] |= NI660X_DMA_CFG_SEL_NONE(mite_channel); ni_660x_write(dev, chip, devpriv->dma_cfg[chip], NI660X_DMA_CFG); mmiowb(); - spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); + spin_unlock_irqrestore(&devpriv->dma_cfg_lock, flags); } static int ni_660x_request_mite_channel(struct comedi_device *dev, @@ -662,7 +664,7 @@ static int ni_660x_allocate_private(struct comedi_device *dev) spin_lock_init(&devpriv->mite_channel_lock); spin_lock_init(&devpriv->interrupt_lock); - spin_lock_init(&devpriv->soft_reg_copy_lock); + spin_lock_init(&devpriv->dma_cfg_lock); for (i = 0; i < NUM_PFI_CHANNELS; ++i) devpriv->io_cfg[i] = NI_660X_PFI_OUTPUT_COUNTER; -- cgit v0.10.2 From 5262d035ef260c3417254b2309892bba013dcab7 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:37 -0700 Subject: staging: comedi: ni_660x: fix memory barrier without comment Fix the checkpatch.pl issue. Move the memory barrier to a better place. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 2926d26..bb5b5ff 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -613,9 +613,11 @@ static irqreturn_t ni_660x_interrupt(int irq, void *d) if (!dev->attached) return IRQ_NONE; + /* make sure dev->attached is checked before doing anything else */ + smp_mb(); + /* lock to avoid race with comedi_poll */ spin_lock_irqsave(&devpriv->interrupt_lock, flags); - smp_mb(); for (i = 0; i < dev->n_subdevices; ++i) { s = &dev->subdevices[i]; if (s->type == COMEDI_SUBD_COUNTER) -- cgit v0.10.2 From ccef0da819dd7fa716b90e584a7793a8849b06f1 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:38 -0700 Subject: staging: comedi: ni_660x: tidy up the misc. constants Remove enum ni_660x_constants and just #define the value. Move all the constant #defines so they are in one place and rename them so they are more conesistent. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index bb5b5ff..80499d6 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -41,14 +41,6 @@ #include "mite.h" #include "ni_tio.h" -enum ni_660x_constants { - counters_per_chip = 4 -}; - -#define NUM_PFI_CHANNELS 40 -/* there are only up to 3 dma channels, but the register layout allows for 4 */ -#define MAX_DMA_CHANNEL 4 - /* See Register-Level Programmer Manual page 3.1 */ enum ni_660x_register { NI660X_G0_INT_ACK, @@ -390,22 +382,29 @@ static const struct ni_660x_board ni_660x_boards[] = { }, }; -#define NI_660X_MAX_NUM_CHIPS 2 -#define NI_660X_MAX_NUM_COUNTERS (NI_660X_MAX_NUM_CHIPS * counters_per_chip) +#define NI660X_NUM_PFI_CHANNELS 40 + +/* there are only up to 3 dma channels, but the register layout allows for 4 */ +#define NI660X_MAX_DMA_CHANNEL 4 + +#define NI660X_COUNTERS_PER_CHIP 4 +#define NI660X_MAX_CHIPS 2 +#define NI660X_MAX_COUNTERS (NI660X_MAX_CHIPS * \ + NI660X_COUNTERS_PER_CHIP) struct ni_660x_private { struct mite_struct *mite; struct ni_gpct_device *counter_dev; struct mite_dma_descriptor_ring - *mite_rings[NI_660X_MAX_NUM_CHIPS][counters_per_chip]; + *mite_rings[NI660X_MAX_CHIPS][NI660X_COUNTERS_PER_CHIP]; /* protects mite channel request/release */ spinlock_t mite_channel_lock; /* prevents races between interrupt and comedi_poll */ spinlock_t interrupt_lock; /* protects dma_cfg changes */ spinlock_t dma_cfg_lock; - unsigned int dma_cfg[NI_660X_MAX_NUM_CHIPS]; - unsigned int io_cfg[NUM_PFI_CHANNELS]; + unsigned int dma_cfg[NI660X_MAX_CHIPS]; + unsigned int io_cfg[NI660X_NUM_PFI_CHANNELS]; u64 io_dir; }; @@ -667,7 +666,7 @@ static int ni_660x_allocate_private(struct comedi_device *dev) spin_lock_init(&devpriv->mite_channel_lock); spin_lock_init(&devpriv->interrupt_lock); spin_lock_init(&devpriv->dma_cfg_lock); - for (i = 0; i < NUM_PFI_CHANNELS; ++i) + for (i = 0; i < NI660X_NUM_PFI_CHANNELS; ++i) devpriv->io_cfg[i] = NI_660X_PFI_OUTPUT_COUNTER; return 0; @@ -681,7 +680,7 @@ static int ni_660x_alloc_mite_rings(struct comedi_device *dev) unsigned int j; for (i = 0; i < board->n_chips; ++i) { - for (j = 0; j < counters_per_chip; ++j) { + for (j = 0; j < NI660X_COUNTERS_PER_CHIP; ++j) { devpriv->mite_rings[i][j] = mite_alloc_ring(devpriv->mite); if (!devpriv->mite_rings[i][j]) @@ -699,7 +698,7 @@ static void ni_660x_free_mite_rings(struct comedi_device *dev) unsigned int j; for (i = 0; i < board->n_chips; ++i) { - for (j = 0; j < counters_per_chip; ++j) + for (j = 0; j < NI660X_COUNTERS_PER_CHIP; ++j) mite_free_ring(devpriv->mite_rings[i][j]); } } @@ -711,10 +710,10 @@ static void init_tio_chip(struct comedi_device *dev, int chipset) /* init dma configuration register */ devpriv->dma_cfg[chipset] = 0; - for (i = 0; i < MAX_DMA_CHANNEL; ++i) + for (i = 0; i < NI660X_MAX_DMA_CHANNEL; ++i) devpriv->dma_cfg[chipset] |= NI660X_DMA_CFG_SEL_NONE(i); ni_660x_write(dev, chipset, devpriv->dma_cfg[chipset], NI660X_DMA_CFG); - for (i = 0; i < NUM_PFI_CHANNELS; ++i) + for (i = 0; i < NI660X_NUM_PFI_CHANNELS; ++i) ni_660x_write(dev, chipset, 0, NI660X_IO_CFG(i)); } @@ -899,7 +898,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, if (ret < 0) return ret; - ret = comedi_alloc_subdevices(dev, 2 + NI_660X_MAX_NUM_COUNTERS); + ret = comedi_alloc_subdevices(dev, 2 + NI660X_MAX_COUNTERS); if (ret) return ret; @@ -965,7 +964,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, s = &dev->subdevices[subdev++]; s->type = COMEDI_SUBD_DIO; s->subdev_flags = SDF_READABLE | SDF_WRITABLE; - s->n_chan = NUM_PFI_CHANNELS; + s->n_chan = NI660X_NUM_PFI_CHANNELS; s->maxdata = 1; s->range_table = &range_digital; s->insn_bits = ni_660x_dio_insn_bits; @@ -977,7 +976,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, */ ni_660x_write(dev, 0, 0, NI660X_STC_DIO_CONTROL); - n_counters = board->n_chips * counters_per_chip; + n_counters = board->n_chips * NI660X_COUNTERS_PER_CHIP; devpriv->counter_dev = ni_gpct_device_construct(dev, ni_660x_gpct_write, ni_660x_gpct_read, @@ -985,7 +984,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, n_counters); if (!devpriv->counter_dev) return -ENOMEM; - for (i = 0; i < NI_660X_MAX_NUM_COUNTERS; ++i) { + for (i = 0; i < NI660X_MAX_COUNTERS; ++i) { s = &dev->subdevices[subdev++]; if (i < n_counters) { s->type = COMEDI_SUBD_COUNTER; @@ -1006,9 +1005,9 @@ static int ni_660x_auto_attach(struct comedi_device *dev, s->private = &devpriv->counter_dev->counters[i]; devpriv->counter_dev->counters[i].chip_index = - i / counters_per_chip; + i / NI660X_COUNTERS_PER_CHIP; devpriv->counter_dev->counters[i].counter_index = - i % counters_per_chip; + i % NI660X_COUNTERS_PER_CHIP; } else { s->type = COMEDI_SUBD_UNUSED; } @@ -1024,7 +1023,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, * chan 0-7: DIO inputs * chan 8-39: counter signal inputs */ - for (i = 0; i < NUM_PFI_CHANNELS; ++i) { + for (i = 0; i < NI660X_NUM_PFI_CHANNELS; ++i) { if (i < 8) ni_660x_set_pfi_routing(dev, i, NI_660X_PFI_OUTPUT_DIO); else -- cgit v0.10.2 From 32f89d8e70106f2b636c716a7cfb7fe53cfc5ebf Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:39 -0700 Subject: staging: comedi: ni_660x: tidy up the counter subdevices init For aesthetics, add some whitespace to the subdevice init and use a couple local variables to make the code easier to follow. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 80499d6..35602cc 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -864,6 +864,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, const struct ni_660x_board *board = NULL; struct ni_660x_private *devpriv; struct comedi_subdevice *s; + struct ni_gpct_device *gpct_dev; unsigned int n_counters; int subdev; int ret; @@ -977,46 +978,50 @@ static int ni_660x_auto_attach(struct comedi_device *dev, ni_660x_write(dev, 0, 0, NI660X_STC_DIO_CONTROL); n_counters = board->n_chips * NI660X_COUNTERS_PER_CHIP; - devpriv->counter_dev = ni_gpct_device_construct(dev, - ni_660x_gpct_write, - ni_660x_gpct_read, - ni_gpct_variant_660x, - n_counters); - if (!devpriv->counter_dev) + gpct_dev = ni_gpct_device_construct(dev, + ni_660x_gpct_write, + ni_660x_gpct_read, + ni_gpct_variant_660x, + n_counters); + if (!gpct_dev) return -ENOMEM; + devpriv->counter_dev = gpct_dev; + + /* Counter subdevices (4 NI TIO General Purpose Counters per chip) */ for (i = 0; i < NI660X_MAX_COUNTERS; ++i) { s = &dev->subdevices[subdev++]; if (i < n_counters) { - s->type = COMEDI_SUBD_COUNTER; - s->subdev_flags = SDF_READABLE | SDF_WRITABLE | + struct ni_gpct *counter = &gpct_dev->counters[i]; + + counter->chip_index = i / NI660X_COUNTERS_PER_CHIP; + counter->counter_index = i % NI660X_COUNTERS_PER_CHIP; + + s->type = COMEDI_SUBD_COUNTER; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL | SDF_CMD_READ; - s->n_chan = 3; - s->maxdata = 0xffffffff; - s->insn_read = ni_tio_insn_read; - s->insn_write = ni_tio_insn_write; - s->insn_config = ni_tio_insn_config; - s->do_cmd = &ni_660x_cmd; - s->len_chanlist = 1; - s->do_cmdtest = ni_tio_cmdtest; - s->cancel = &ni_660x_cancel; - s->poll = &ni_660x_input_poll; + s->n_chan = 3; + s->maxdata = 0xffffffff; + s->insn_read = ni_tio_insn_read; + s->insn_write = ni_tio_insn_write; + s->insn_config = ni_tio_insn_config; + s->len_chanlist = 1; + s->do_cmd = ni_660x_cmd; + s->do_cmdtest = ni_tio_cmdtest; + s->cancel = ni_660x_cancel; + s->poll = ni_660x_input_poll; + s->buf_change = ni_660x_buf_change; s->async_dma_dir = DMA_BIDIRECTIONAL; - s->buf_change = &ni_660x_buf_change; - s->private = &devpriv->counter_dev->counters[i]; - - devpriv->counter_dev->counters[i].chip_index = - i / NI660X_COUNTERS_PER_CHIP; - devpriv->counter_dev->counters[i].counter_index = - i % NI660X_COUNTERS_PER_CHIP; + s->private = counter; } else { - s->type = COMEDI_SUBD_UNUSED; + s->type = COMEDI_SUBD_UNUSED; } } + for (i = 0; i < board->n_chips; ++i) init_tio_chip(dev, i); for (i = 0; i < n_counters; ++i) - ni_tio_init_counter(&devpriv->counter_dev->counters[i]); + ni_tio_init_counter(&gpct_dev->counters[i]); /* * Default the DIO channels as: -- cgit v0.10.2 From 26a0fe3ffa24c63a99b1fb314e03723c1e470ba0 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:41 -0700 Subject: staging: comedi: ni_660x: ni_gpct_device_destroy() can handle a NULL pointer Remove the unnecessary NULL pointer check. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 35602cc..2440cb6 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -1067,8 +1067,7 @@ static void ni_660x_detach(struct comedi_device *dev) if (dev->irq) free_irq(dev->irq, dev); if (devpriv) { - if (devpriv->counter_dev) - ni_gpct_device_destroy(devpriv->counter_dev); + ni_gpct_device_destroy(devpriv->counter_dev); ni_660x_free_mite_rings(dev); mite_detach(devpriv->mite); } -- cgit v0.10.2 From 78d514fa4cc0f195e060b7918d3548b63d27050f Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:43 -0700 Subject: staging: comedi: ni_660x: disable interrupts when detaching driver Make sure the interrupts are disabled before freeing the irq. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 2440cb6..c71dae8 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -1064,8 +1064,10 @@ static void ni_660x_detach(struct comedi_device *dev) { struct ni_660x_private *devpriv = dev->private; - if (dev->irq) + if (dev->irq) { + ni_660x_write(dev, 0, 0, NI660X_GLOBAL_INT_CFG); free_irq(dev->irq, dev); + } if (devpriv) { ni_gpct_device_destroy(devpriv->counter_dev); ni_660x_free_mite_rings(dev); -- cgit v0.10.2 From 2363cbf073225537016aceb6bf122bbee6a0caa0 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:44 -0700 Subject: staging: comedi: ni_660x: init TIO chips before subdevice init For aesthetics, initialize the TIO chips before the subdevices are allocated and initialized. Refactor the function to initialize all the TIO chips and move it to a better place in the driver. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index c71dae8..afe62bf 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -703,20 +703,6 @@ static void ni_660x_free_mite_rings(struct comedi_device *dev) } } -static void init_tio_chip(struct comedi_device *dev, int chipset) -{ - struct ni_660x_private *devpriv = dev->private; - unsigned int i; - - /* init dma configuration register */ - devpriv->dma_cfg[chipset] = 0; - for (i = 0; i < NI660X_MAX_DMA_CHANNEL; ++i) - devpriv->dma_cfg[chipset] |= NI660X_DMA_CFG_SEL_NONE(i); - ni_660x_write(dev, chipset, devpriv->dma_cfg[chipset], NI660X_DMA_CFG); - for (i = 0; i < NI660X_NUM_PFI_CHANNELS; ++i) - ni_660x_write(dev, chipset, 0, NI660X_IO_CFG(i)); -} - static int ni_660x_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, @@ -857,6 +843,33 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev, return insn->n; } +static void ni_660x_init_tio_chips(struct comedi_device *dev, + unsigned int n_chips) +{ + struct ni_660x_private *devpriv = dev->private; + unsigned int chip; + unsigned int chan; + + /* + * We use the ioconfig registers to control dio direction, so zero + * output enables in stc dio control reg. + */ + ni_660x_write(dev, 0, 0, NI660X_STC_DIO_CONTROL); + + for (chip = 0; chip < n_chips; ++chip) { + /* init dma configuration register */ + devpriv->dma_cfg[chip] = 0; + for (chan = 0; chan < NI660X_MAX_DMA_CHANNEL; ++chan) + devpriv->dma_cfg[chip] |= NI660X_DMA_CFG_SEL_NONE(chan); + ni_660x_write(dev, chip, devpriv->dma_cfg[chip], + NI660X_DMA_CFG); + + /* init ioconfig registers */ + for (chan = 0; chan < NI660X_NUM_PFI_CHANNELS; ++chan) + ni_660x_write(dev, chip, 0, NI660X_IO_CFG(chan)); + } +} + static int ni_660x_auto_attach(struct comedi_device *dev, unsigned long context) { @@ -899,6 +912,8 @@ static int ni_660x_auto_attach(struct comedi_device *dev, if (ret < 0) return ret; + ni_660x_init_tio_chips(dev, board->n_chips); + ret = comedi_alloc_subdevices(dev, 2 + NI660X_MAX_COUNTERS); if (ret) return ret; @@ -971,12 +986,6 @@ static int ni_660x_auto_attach(struct comedi_device *dev, s->insn_bits = ni_660x_dio_insn_bits; s->insn_config = ni_660x_dio_insn_config; - /* - * We use the ioconfig registers to control dio direction, so zero - * output enables in stc dio control reg. - */ - ni_660x_write(dev, 0, 0, NI660X_STC_DIO_CONTROL); - n_counters = board->n_chips * NI660X_COUNTERS_PER_CHIP; gpct_dev = ni_gpct_device_construct(dev, ni_660x_gpct_write, @@ -1017,9 +1026,6 @@ static int ni_660x_auto_attach(struct comedi_device *dev, } } - for (i = 0; i < board->n_chips; ++i) - init_tio_chip(dev, i); - for (i = 0; i < n_counters; ++i) ni_tio_init_counter(&gpct_dev->counters[i]); -- cgit v0.10.2 From f229594a327720c0761e7307a5472aea780268c3 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:45 -0700 Subject: staging: comedi: ni_660x: allocate counters early in (*auto_attach) The ni_gpct_device_construct() could fail allocating the memory for device and its counters. For aesthetics, call the function before initializing the subdevices. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index afe62bf..6366303 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -914,6 +914,16 @@ static int ni_660x_auto_attach(struct comedi_device *dev, ni_660x_init_tio_chips(dev, board->n_chips); + n_counters = board->n_chips * NI660X_COUNTERS_PER_CHIP; + gpct_dev = ni_gpct_device_construct(dev, + ni_660x_gpct_write, + ni_660x_gpct_read, + ni_gpct_variant_660x, + n_counters); + if (!gpct_dev) + return -ENOMEM; + devpriv->counter_dev = gpct_dev; + ret = comedi_alloc_subdevices(dev, 2 + NI660X_MAX_COUNTERS); if (ret) return ret; @@ -986,16 +996,6 @@ static int ni_660x_auto_attach(struct comedi_device *dev, s->insn_bits = ni_660x_dio_insn_bits; s->insn_config = ni_660x_dio_insn_config; - n_counters = board->n_chips * NI660X_COUNTERS_PER_CHIP; - gpct_dev = ni_gpct_device_construct(dev, - ni_660x_gpct_write, - ni_660x_gpct_read, - ni_gpct_variant_660x, - n_counters); - if (!gpct_dev) - return -ENOMEM; - devpriv->counter_dev = gpct_dev; - /* Counter subdevices (4 NI TIO General Purpose Counters per chip) */ for (i = 0; i < NI660X_MAX_COUNTERS; ++i) { s = &dev->subdevices[subdev++]; -- cgit v0.10.2 From 90ad57be6be10e7084ca677d6eddfba612b55a62 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:46 -0700 Subject: staging: comedi: ni_660x: initialize the counter with the subdevice init Remove the extra for loop and just initialize the counter as the subdevices are created. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 6366303..5969723 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -1021,14 +1021,13 @@ static int ni_660x_auto_attach(struct comedi_device *dev, s->buf_change = ni_660x_buf_change; s->async_dma_dir = DMA_BIDIRECTIONAL; s->private = counter; + + ni_tio_init_counter(counter); } else { s->type = COMEDI_SUBD_UNUSED; } } - for (i = 0; i < n_counters; ++i) - ni_tio_init_counter(&gpct_dev->counters[i]); - /* * Default the DIO channels as: * chan 0-7: DIO inputs -- cgit v0.10.2 From 34b7f1f8194da6600eda6bb7c26659de19047a39 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:47 -0700 Subject: staging: comedi: ni_660x: default DIO channels with subdevice init For aesthetics, move the initialization of the default routing for the DIO channels so it happens when the subdevice is initialized. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 5969723..cf25892 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -996,6 +996,19 @@ static int ni_660x_auto_attach(struct comedi_device *dev, s->insn_bits = ni_660x_dio_insn_bits; s->insn_config = ni_660x_dio_insn_config; + /* + * Default the DIO channels as: + * chan 0-7: DIO inputs + * chan 8-39: counter signal inputs + */ + for (i = 0; i < s->n_chan; ++i) { + unsigned int source = (i < 8) ? NI_660X_PFI_OUTPUT_DIO + : NI_660X_PFI_OUTPUT_COUNTER; + + ni_660x_set_pfi_routing(dev, i, source); + ni_660x_select_pfi_output(dev, i, 0); /* high-z */ + } + /* Counter subdevices (4 NI TIO General Purpose Counters per chip) */ for (i = 0; i < NI660X_MAX_COUNTERS; ++i) { s = &dev->subdevices[subdev++]; @@ -1028,20 +1041,6 @@ static int ni_660x_auto_attach(struct comedi_device *dev, } } - /* - * Default the DIO channels as: - * chan 0-7: DIO inputs - * chan 8-39: counter signal inputs - */ - for (i = 0; i < NI660X_NUM_PFI_CHANNELS; ++i) { - if (i < 8) - ni_660x_set_pfi_routing(dev, i, NI_660X_PFI_OUTPUT_DIO); - else - ni_660x_set_pfi_routing(dev, i, - NI_660X_PFI_OUTPUT_COUNTER); - ni_660x_select_pfi_output(dev, i, 0); /* high-z */ - } - /* * To be safe, set counterswap bits on tio chips after all the counter * outputs have been set to high impedance mode. -- cgit v0.10.2 From 515b5e6b8afdd32a3b528a331f23b852fe083c26 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:48 -0700 Subject: staging: comedi: ni_660x: remove inline mite_ring() This fuction just returns a pointer from the private data. The name might provide some confusion since it appears to be an exported function from the mite driver. Just remove it and get the pointer directly where needed. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index cf25892..1cca9ea 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -465,16 +465,6 @@ static unsigned int ni_660x_gpct_read(struct ni_gpct *counter, return ni_660x_read(dev, counter->chip_index, ni_660x_register); } -static inline struct mite_dma_descriptor_ring *mite_ring(struct ni_660x_private - *priv, - struct ni_gpct - *counter) -{ - unsigned int chip = counter->chip_index; - - return priv->mite_rings[chip][counter->counter_index]; -} - static inline void ni_660x_set_dma_channel(struct comedi_device *dev, unsigned int mite_channel, struct ni_gpct *counter) @@ -515,12 +505,13 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev, enum comedi_io_direction direction) { struct ni_660x_private *devpriv = dev->private; - unsigned long flags; + struct mite_dma_descriptor_ring *ring; struct mite_channel *mite_chan; + unsigned long flags; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - mite_chan = mite_request_channel(devpriv->mite, - mite_ring(devpriv, counter)); + ring = devpriv->mite_rings[counter->chip_index][counter->counter_index]; + mite_chan = mite_request_channel(devpriv->mite, ring); if (!mite_chan) { spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); dev_err(dev->class_dev, @@ -645,9 +636,11 @@ static int ni_660x_buf_change(struct comedi_device *dev, { struct ni_660x_private *devpriv = dev->private; struct ni_gpct *counter = s->private; + struct mite_dma_descriptor_ring *ring; int ret; - ret = mite_buf_change(mite_ring(devpriv, counter), s); + ring = devpriv->mite_rings[counter->chip_index][counter->counter_index]; + ret = mite_buf_change(ring, s); if (ret < 0) return ret; -- cgit v0.10.2 From 242311d1a9e5cebde39855e064dcc4ac0dabde93 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:49 -0700 Subject: staging: comedi: ni_660x: sort enum ni_660x_register Sort this enum so that it has a 1:1 relationship with the ni_tio.h enum ni_gpct_register. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 1cca9ea..ad67ee5 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -43,78 +43,79 @@ /* See Register-Level Programmer Manual page 3.1 */ enum ni_660x_register { - NI660X_G0_INT_ACK, - NI660X_G0_STATUS, - NI660X_G1_INT_ACK, - NI660X_G1_STATUS, - NI660X_G01_STATUS, + NI660X_G0_AUTO_INC, + NI660X_G1_AUTO_INC, + NI660X_G2_AUTO_INC, + NI660X_G3_AUTO_INC, NI660X_G0_CMD, - NI660X_STC_DIO_PARALLEL_INPUT, NI660X_G1_CMD, + NI660X_G2_CMD, + NI660X_G3_CMD, NI660X_G0_HW_SAVE, NI660X_G1_HW_SAVE, - NI660X_STC_DIO_OUTPUT, - NI660X_STC_DIO_CONTROL, + NI660X_G2_HW_SAVE, + NI660X_G3_HW_SAVE, NI660X_G0_SW_SAVE, NI660X_G1_SW_SAVE, + NI660X_G2_SW_SAVE, + NI660X_G3_SW_SAVE, NI660X_G0_MODE, - NI660X_G01_STATUS1, NI660X_G1_MODE, - NI660X_STC_DIO_SERIAL_INPUT, + NI660X_G2_MODE, + NI660X_G3_MODE, NI660X_G0_LOADA, - NI660X_G01_STATUS2, - NI660X_G0_LOADB, NI660X_G1_LOADA, + NI660X_G2_LOADA, + NI660X_G3_LOADA, + NI660X_G0_LOADB, NI660X_G1_LOADB, + NI660X_G2_LOADB, + NI660X_G3_LOADB, NI660X_G0_INPUT_SEL, NI660X_G1_INPUT_SEL, - NI660X_G0_AUTO_INC, - NI660X_G1_AUTO_INC, - NI660X_G01_RESET, - NI660X_G0_INT_ENA, - NI660X_G1_INT_ENA, + NI660X_G2_INPUT_SEL, + NI660X_G3_INPUT_SEL, NI660X_G0_CNT_MODE, NI660X_G1_CNT_MODE, + NI660X_G2_CNT_MODE, + NI660X_G3_CNT_MODE, NI660X_G0_GATE2, NI660X_G1_GATE2, + NI660X_G2_GATE2, + NI660X_G3_GATE2, + NI660X_G01_STATUS, + NI660X_G23_STATUS, + NI660X_G01_RESET, + NI660X_G23_RESET, + NI660X_G01_STATUS1, + NI660X_G23_STATUS1, + NI660X_G01_STATUS2, + NI660X_G23_STATUS2, NI660X_G0_DMA_CFG, - NI660X_G0_DMA_STATUS, NI660X_G1_DMA_CFG, + NI660X_G2_DMA_CFG, + NI660X_G3_DMA_CFG, + NI660X_G0_DMA_STATUS, NI660X_G1_DMA_STATUS, + NI660X_G2_DMA_STATUS, + NI660X_G3_DMA_STATUS, + NI660X_G0_INT_ACK, + NI660X_G1_INT_ACK, NI660X_G2_INT_ACK, - NI660X_G2_STATUS, NI660X_G3_INT_ACK, + NI660X_G0_STATUS, + NI660X_G1_STATUS, + NI660X_G2_STATUS, NI660X_G3_STATUS, - NI660X_G23_STATUS, - NI660X_G2_CMD, - NI660X_G3_CMD, - NI660X_G2_HW_SAVE, - NI660X_G3_HW_SAVE, - NI660X_G2_SW_SAVE, - NI660X_G3_SW_SAVE, - NI660X_G2_MODE, - NI660X_G23_STATUS1, - NI660X_G3_MODE, - NI660X_G2_LOADA, - NI660X_G23_STATUS2, - NI660X_G2_LOADB, - NI660X_G3_LOADA, - NI660X_G3_LOADB, - NI660X_G2_INPUT_SEL, - NI660X_G3_INPUT_SEL, - NI660X_G2_AUTO_INC, - NI660X_G3_AUTO_INC, - NI660X_G23_RESET, + NI660X_G0_INT_ENA, + NI660X_G1_INT_ENA, NI660X_G2_INT_ENA, NI660X_G3_INT_ENA, - NI660X_G2_CNT_MODE, - NI660X_G3_CNT_MODE, - NI660X_G3_GATE2, - NI660X_G2_GATE2, - NI660X_G2_DMA_CFG, - NI660X_G2_DMA_STATUS, - NI660X_G3_DMA_CFG, - NI660X_G3_DMA_STATUS, + + NI660X_STC_DIO_PARALLEL_INPUT = NITIO_NUM_REGS, + NI660X_STC_DIO_OUTPUT, + NI660X_STC_DIO_CONTROL, + NI660X_STC_DIO_SERIAL_INPUT, NI660X_DIO32_INPUT, NI660X_DIO32_OUTPUT, NI660X_CLK_CFG, -- cgit v0.10.2 From 4f2c3b2077a9bb34c7b5afe31633a1f5b1ca80b4 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:50 -0700 Subject: staging: comedi: ni_660x: remove ni_gpct_to_660x_register[] enum ni_gpct_register and enum ni_660x_register now have a 1:1 relationship for the NITIO_* registers. The static const array is no longer necessary to find the proper NI660X_* register for a given NITIO_*. Remove it and refactor the register read/write functions. Use the NITIO_* values to init the ni_660x_reg_data[] array and remove the unnecessary NI660X_* enum values. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index ad67ee5..85c793a 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -43,75 +43,7 @@ /* See Register-Level Programmer Manual page 3.1 */ enum ni_660x_register { - NI660X_G0_AUTO_INC, - NI660X_G1_AUTO_INC, - NI660X_G2_AUTO_INC, - NI660X_G3_AUTO_INC, - NI660X_G0_CMD, - NI660X_G1_CMD, - NI660X_G2_CMD, - NI660X_G3_CMD, - NI660X_G0_HW_SAVE, - NI660X_G1_HW_SAVE, - NI660X_G2_HW_SAVE, - NI660X_G3_HW_SAVE, - NI660X_G0_SW_SAVE, - NI660X_G1_SW_SAVE, - NI660X_G2_SW_SAVE, - NI660X_G3_SW_SAVE, - NI660X_G0_MODE, - NI660X_G1_MODE, - NI660X_G2_MODE, - NI660X_G3_MODE, - NI660X_G0_LOADA, - NI660X_G1_LOADA, - NI660X_G2_LOADA, - NI660X_G3_LOADA, - NI660X_G0_LOADB, - NI660X_G1_LOADB, - NI660X_G2_LOADB, - NI660X_G3_LOADB, - NI660X_G0_INPUT_SEL, - NI660X_G1_INPUT_SEL, - NI660X_G2_INPUT_SEL, - NI660X_G3_INPUT_SEL, - NI660X_G0_CNT_MODE, - NI660X_G1_CNT_MODE, - NI660X_G2_CNT_MODE, - NI660X_G3_CNT_MODE, - NI660X_G0_GATE2, - NI660X_G1_GATE2, - NI660X_G2_GATE2, - NI660X_G3_GATE2, - NI660X_G01_STATUS, - NI660X_G23_STATUS, - NI660X_G01_RESET, - NI660X_G23_RESET, - NI660X_G01_STATUS1, - NI660X_G23_STATUS1, - NI660X_G01_STATUS2, - NI660X_G23_STATUS2, - NI660X_G0_DMA_CFG, - NI660X_G1_DMA_CFG, - NI660X_G2_DMA_CFG, - NI660X_G3_DMA_CFG, - NI660X_G0_DMA_STATUS, - NI660X_G1_DMA_STATUS, - NI660X_G2_DMA_STATUS, - NI660X_G3_DMA_STATUS, - NI660X_G0_INT_ACK, - NI660X_G1_INT_ACK, - NI660X_G2_INT_ACK, - NI660X_G3_INT_ACK, - NI660X_G0_STATUS, - NI660X_G1_STATUS, - NI660X_G2_STATUS, - NI660X_G3_STATUS, - NI660X_G0_INT_ENA, - NI660X_G1_INT_ENA, - NI660X_G2_INT_ENA, - NI660X_G3_INT_ENA, - + /* see enum ni_gpct_register */ NI660X_STC_DIO_PARALLEL_INPUT = NITIO_NUM_REGS, NI660X_STC_DIO_OUTPUT, NI660X_STC_DIO_CONTROL, @@ -172,78 +104,78 @@ struct ni_660x_register_data { }; static const struct ni_660x_register_data ni_660x_reg_data[NI660X_NUM_REGS] = { - [NI660X_G0_INT_ACK] = { 0x004, 2 }, /* write */ - [NI660X_G0_STATUS] = { 0x004, 2 }, /* read */ - [NI660X_G1_INT_ACK] = { 0x006, 2 }, /* write */ - [NI660X_G1_STATUS] = { 0x006, 2 }, /* read */ - [NI660X_G01_STATUS] = { 0x008, 2 }, /* read */ - [NI660X_G0_CMD] = { 0x00c, 2 }, /* write */ + [NITIO_G0_INT_ACK] = { 0x004, 2 }, /* write */ + [NITIO_G0_STATUS] = { 0x004, 2 }, /* read */ + [NITIO_G1_INT_ACK] = { 0x006, 2 }, /* write */ + [NITIO_G1_STATUS] = { 0x006, 2 }, /* read */ + [NITIO_G01_STATUS] = { 0x008, 2 }, /* read */ + [NITIO_G0_CMD] = { 0x00c, 2 }, /* write */ [NI660X_STC_DIO_PARALLEL_INPUT] = { 0x00e, 2 }, /* read */ - [NI660X_G1_CMD] = { 0x00e, 2 }, /* write */ - [NI660X_G0_HW_SAVE] = { 0x010, 4 }, /* read */ - [NI660X_G1_HW_SAVE] = { 0x014, 4 }, /* read */ + [NITIO_G1_CMD] = { 0x00e, 2 }, /* write */ + [NITIO_G0_HW_SAVE] = { 0x010, 4 }, /* read */ + [NITIO_G1_HW_SAVE] = { 0x014, 4 }, /* read */ [NI660X_STC_DIO_OUTPUT] = { 0x014, 2 }, /* write */ [NI660X_STC_DIO_CONTROL] = { 0x016, 2 }, /* write */ - [NI660X_G0_SW_SAVE] = { 0x018, 4 }, /* read */ - [NI660X_G1_SW_SAVE] = { 0x01c, 4 }, /* read */ - [NI660X_G0_MODE] = { 0x034, 2 }, /* write */ - [NI660X_G01_STATUS1] = { 0x036, 2 }, /* read */ - [NI660X_G1_MODE] = { 0x036, 2 }, /* write */ + [NITIO_G0_SW_SAVE] = { 0x018, 4 }, /* read */ + [NITIO_G1_SW_SAVE] = { 0x01c, 4 }, /* read */ + [NITIO_G0_MODE] = { 0x034, 2 }, /* write */ + [NITIO_G01_STATUS1] = { 0x036, 2 }, /* read */ + [NITIO_G1_MODE] = { 0x036, 2 }, /* write */ [NI660X_STC_DIO_SERIAL_INPUT] = { 0x038, 2 }, /* read */ - [NI660X_G0_LOADA] = { 0x038, 4 }, /* write */ - [NI660X_G01_STATUS2] = { 0x03a, 2 }, /* read */ - [NI660X_G0_LOADB] = { 0x03c, 4 }, /* write */ - [NI660X_G1_LOADA] = { 0x040, 4 }, /* write */ - [NI660X_G1_LOADB] = { 0x044, 4 }, /* write */ - [NI660X_G0_INPUT_SEL] = { 0x048, 2 }, /* write */ - [NI660X_G1_INPUT_SEL] = { 0x04a, 2 }, /* write */ - [NI660X_G0_AUTO_INC] = { 0x088, 2 }, /* write */ - [NI660X_G1_AUTO_INC] = { 0x08a, 2 }, /* write */ - [NI660X_G01_RESET] = { 0x090, 2 }, /* write */ - [NI660X_G0_INT_ENA] = { 0x092, 2 }, /* write */ - [NI660X_G1_INT_ENA] = { 0x096, 2 }, /* write */ - [NI660X_G0_CNT_MODE] = { 0x0b0, 2 }, /* write */ - [NI660X_G1_CNT_MODE] = { 0x0b2, 2 }, /* write */ - [NI660X_G0_GATE2] = { 0x0b4, 2 }, /* write */ - [NI660X_G1_GATE2] = { 0x0b6, 2 }, /* write */ - [NI660X_G0_DMA_CFG] = { 0x0b8, 2 }, /* write */ - [NI660X_G0_DMA_STATUS] = { 0x0b8, 2 }, /* read */ - [NI660X_G1_DMA_CFG] = { 0x0ba, 2 }, /* write */ - [NI660X_G1_DMA_STATUS] = { 0x0ba, 2 }, /* read */ - [NI660X_G2_INT_ACK] = { 0x104, 2 }, /* write */ - [NI660X_G2_STATUS] = { 0x104, 2 }, /* read */ - [NI660X_G3_INT_ACK] = { 0x106, 2 }, /* write */ - [NI660X_G3_STATUS] = { 0x106, 2 }, /* read */ - [NI660X_G23_STATUS] = { 0x108, 2 }, /* read */ - [NI660X_G2_CMD] = { 0x10c, 2 }, /* write */ - [NI660X_G3_CMD] = { 0x10e, 2 }, /* write */ - [NI660X_G2_HW_SAVE] = { 0x110, 4 }, /* read */ - [NI660X_G3_HW_SAVE] = { 0x114, 4 }, /* read */ - [NI660X_G2_SW_SAVE] = { 0x118, 4 }, /* read */ - [NI660X_G3_SW_SAVE] = { 0x11c, 4 }, /* read */ - [NI660X_G2_MODE] = { 0x134, 2 }, /* write */ - [NI660X_G23_STATUS1] = { 0x136, 2 }, /* read */ - [NI660X_G3_MODE] = { 0x136, 2 }, /* write */ - [NI660X_G2_LOADA] = { 0x138, 4 }, /* write */ - [NI660X_G23_STATUS2] = { 0x13a, 2 }, /* read */ - [NI660X_G2_LOADB] = { 0x13c, 4 }, /* write */ - [NI660X_G3_LOADA] = { 0x140, 4 }, /* write */ - [NI660X_G3_LOADB] = { 0x144, 4 }, /* write */ - [NI660X_G2_INPUT_SEL] = { 0x148, 2 }, /* write */ - [NI660X_G3_INPUT_SEL] = { 0x14a, 2 }, /* write */ - [NI660X_G2_AUTO_INC] = { 0x188, 2 }, /* write */ - [NI660X_G3_AUTO_INC] = { 0x18a, 2 }, /* write */ - [NI660X_G23_RESET] = { 0x190, 2 }, /* write */ - [NI660X_G2_INT_ENA] = { 0x192, 2 }, /* write */ - [NI660X_G3_INT_ENA] = { 0x196, 2 }, /* write */ - [NI660X_G2_CNT_MODE] = { 0x1b0, 2 }, /* write */ - [NI660X_G3_CNT_MODE] = { 0x1b2, 2 }, /* write */ - [NI660X_G3_GATE2] = { 0x1b6, 2 }, /* write */ - [NI660X_G2_GATE2] = { 0x1b4, 2 }, /* write */ - [NI660X_G2_DMA_CFG] = { 0x1b8, 2 }, /* write */ - [NI660X_G2_DMA_STATUS] = { 0x1b8, 2 }, /* read */ - [NI660X_G3_DMA_CFG] = { 0x1ba, 2 }, /* write */ - [NI660X_G3_DMA_STATUS] = { 0x1ba, 2 }, /* read */ + [NITIO_G0_LOADA] = { 0x038, 4 }, /* write */ + [NITIO_G01_STATUS2] = { 0x03a, 2 }, /* read */ + [NITIO_G0_LOADB] = { 0x03c, 4 }, /* write */ + [NITIO_G1_LOADA] = { 0x040, 4 }, /* write */ + [NITIO_G1_LOADB] = { 0x044, 4 }, /* write */ + [NITIO_G0_INPUT_SEL] = { 0x048, 2 }, /* write */ + [NITIO_G1_INPUT_SEL] = { 0x04a, 2 }, /* write */ + [NITIO_G0_AUTO_INC] = { 0x088, 2 }, /* write */ + [NITIO_G1_AUTO_INC] = { 0x08a, 2 }, /* write */ + [NITIO_G01_RESET] = { 0x090, 2 }, /* write */ + [NITIO_G0_INT_ENA] = { 0x092, 2 }, /* write */ + [NITIO_G1_INT_ENA] = { 0x096, 2 }, /* write */ + [NITIO_G0_CNT_MODE] = { 0x0b0, 2 }, /* write */ + [NITIO_G1_CNT_MODE] = { 0x0b2, 2 }, /* write */ + [NITIO_G0_GATE2] = { 0x0b4, 2 }, /* write */ + [NITIO_G1_GATE2] = { 0x0b6, 2 }, /* write */ + [NITIO_G0_DMA_CFG] = { 0x0b8, 2 }, /* write */ + [NITIO_G0_DMA_STATUS] = { 0x0b8, 2 }, /* read */ + [NITIO_G1_DMA_CFG] = { 0x0ba, 2 }, /* write */ + [NITIO_G1_DMA_STATUS] = { 0x0ba, 2 }, /* read */ + [NITIO_G2_INT_ACK] = { 0x104, 2 }, /* write */ + [NITIO_G2_STATUS] = { 0x104, 2 }, /* read */ + [NITIO_G3_INT_ACK] = { 0x106, 2 }, /* write */ + [NITIO_G3_STATUS] = { 0x106, 2 }, /* read */ + [NITIO_G23_STATUS] = { 0x108, 2 }, /* read */ + [NITIO_G2_CMD] = { 0x10c, 2 }, /* write */ + [NITIO_G3_CMD] = { 0x10e, 2 }, /* write */ + [NITIO_G2_HW_SAVE] = { 0x110, 4 }, /* read */ + [NITIO_G3_HW_SAVE] = { 0x114, 4 }, /* read */ + [NITIO_G2_SW_SAVE] = { 0x118, 4 }, /* read */ + [NITIO_G3_SW_SAVE] = { 0x11c, 4 }, /* read */ + [NITIO_G2_MODE] = { 0x134, 2 }, /* write */ + [NITIO_G23_STATUS1] = { 0x136, 2 }, /* read */ + [NITIO_G3_MODE] = { 0x136, 2 }, /* write */ + [NITIO_G2_LOADA] = { 0x138, 4 }, /* write */ + [NITIO_G23_STATUS2] = { 0x13a, 2 }, /* read */ + [NITIO_G2_LOADB] = { 0x13c, 4 }, /* write */ + [NITIO_G3_LOADA] = { 0x140, 4 }, /* write */ + [NITIO_G3_LOADB] = { 0x144, 4 }, /* write */ + [NITIO_G2_INPUT_SEL] = { 0x148, 2 }, /* write */ + [NITIO_G3_INPUT_SEL] = { 0x14a, 2 }, /* write */ + [NITIO_G2_AUTO_INC] = { 0x188, 2 }, /* write */ + [NITIO_G3_AUTO_INC] = { 0x18a, 2 }, /* write */ + [NITIO_G23_RESET] = { 0x190, 2 }, /* write */ + [NITIO_G2_INT_ENA] = { 0x192, 2 }, /* write */ + [NITIO_G3_INT_ENA] = { 0x196, 2 }, /* write */ + [NITIO_G2_CNT_MODE] = { 0x1b0, 2 }, /* write */ + [NITIO_G3_CNT_MODE] = { 0x1b2, 2 }, /* write */ + [NITIO_G2_GATE2] = { 0x1b4, 2 }, /* write */ + [NITIO_G3_GATE2] = { 0x1b6, 2 }, /* write */ + [NITIO_G2_DMA_CFG] = { 0x1b8, 2 }, /* write */ + [NITIO_G2_DMA_STATUS] = { 0x1b8, 2 }, /* read */ + [NITIO_G3_DMA_CFG] = { 0x1ba, 2 }, /* write */ + [NITIO_G3_DMA_STATUS] = { 0x1ba, 2 }, /* read */ [NI660X_DIO32_INPUT] = { 0x414, 4 }, /* read */ [NI660X_DIO32_OUTPUT] = { 0x510, 4 }, /* write */ [NI660X_CLK_CFG] = { 0x73c, 4 }, /* write */ @@ -272,77 +204,6 @@ static const struct ni_660x_register_data ni_660x_reg_data[NI660X_NUM_REGS] = { [NI660X_IO_CFG_38_39] = { 0x7a2, 2 } /* read/write */ }; -static const enum ni_660x_register ni_gpct_to_660x_register[] = { - [NITIO_G0_AUTO_INC] = NI660X_G0_AUTO_INC, - [NITIO_G1_AUTO_INC] = NI660X_G1_AUTO_INC, - [NITIO_G2_AUTO_INC] = NI660X_G2_AUTO_INC, - [NITIO_G3_AUTO_INC] = NI660X_G3_AUTO_INC, - [NITIO_G0_CMD] = NI660X_G0_CMD, - [NITIO_G1_CMD] = NI660X_G1_CMD, - [NITIO_G2_CMD] = NI660X_G2_CMD, - [NITIO_G3_CMD] = NI660X_G3_CMD, - [NITIO_G0_HW_SAVE] = NI660X_G0_HW_SAVE, - [NITIO_G1_HW_SAVE] = NI660X_G1_HW_SAVE, - [NITIO_G2_HW_SAVE] = NI660X_G2_HW_SAVE, - [NITIO_G3_HW_SAVE] = NI660X_G3_HW_SAVE, - [NITIO_G0_SW_SAVE] = NI660X_G0_SW_SAVE, - [NITIO_G1_SW_SAVE] = NI660X_G1_SW_SAVE, - [NITIO_G2_SW_SAVE] = NI660X_G2_SW_SAVE, - [NITIO_G3_SW_SAVE] = NI660X_G3_SW_SAVE, - [NITIO_G0_MODE] = NI660X_G0_MODE, - [NITIO_G1_MODE] = NI660X_G1_MODE, - [NITIO_G2_MODE] = NI660X_G2_MODE, - [NITIO_G3_MODE] = NI660X_G3_MODE, - [NITIO_G0_LOADA] = NI660X_G0_LOADA, - [NITIO_G1_LOADA] = NI660X_G1_LOADA, - [NITIO_G2_LOADA] = NI660X_G2_LOADA, - [NITIO_G3_LOADA] = NI660X_G3_LOADA, - [NITIO_G0_LOADB] = NI660X_G0_LOADB, - [NITIO_G1_LOADB] = NI660X_G1_LOADB, - [NITIO_G2_LOADB] = NI660X_G2_LOADB, - [NITIO_G3_LOADB] = NI660X_G3_LOADB, - [NITIO_G0_INPUT_SEL] = NI660X_G0_INPUT_SEL, - [NITIO_G1_INPUT_SEL] = NI660X_G1_INPUT_SEL, - [NITIO_G2_INPUT_SEL] = NI660X_G2_INPUT_SEL, - [NITIO_G3_INPUT_SEL] = NI660X_G3_INPUT_SEL, - [NITIO_G0_CNT_MODE] = NI660X_G0_CNT_MODE, - [NITIO_G1_CNT_MODE] = NI660X_G1_CNT_MODE, - [NITIO_G2_CNT_MODE] = NI660X_G2_CNT_MODE, - [NITIO_G3_CNT_MODE] = NI660X_G3_CNT_MODE, - [NITIO_G0_GATE2] = NI660X_G0_GATE2, - [NITIO_G1_GATE2] = NI660X_G1_GATE2, - [NITIO_G2_GATE2] = NI660X_G2_GATE2, - [NITIO_G3_GATE2] = NI660X_G3_GATE2, - [NITIO_G01_STATUS] = NI660X_G01_STATUS, - [NITIO_G23_STATUS] = NI660X_G23_STATUS, - [NITIO_G01_RESET] = NI660X_G01_RESET, - [NITIO_G23_RESET] = NI660X_G23_RESET, - [NITIO_G01_STATUS1] = NI660X_G01_STATUS1, - [NITIO_G23_STATUS1] = NI660X_G23_STATUS1, - [NITIO_G01_STATUS2] = NI660X_G01_STATUS2, - [NITIO_G23_STATUS2] = NI660X_G23_STATUS2, - [NITIO_G0_DMA_CFG] = NI660X_G0_DMA_CFG, - [NITIO_G1_DMA_CFG] = NI660X_G1_DMA_CFG, - [NITIO_G2_DMA_CFG] = NI660X_G2_DMA_CFG, - [NITIO_G3_DMA_CFG] = NI660X_G3_DMA_CFG, - [NITIO_G0_DMA_STATUS] = NI660X_G0_DMA_STATUS, - [NITIO_G1_DMA_STATUS] = NI660X_G1_DMA_STATUS, - [NITIO_G2_DMA_STATUS] = NI660X_G2_DMA_STATUS, - [NITIO_G3_DMA_STATUS] = NI660X_G3_DMA_STATUS, - [NITIO_G0_INT_ACK] = NI660X_G0_INT_ACK, - [NITIO_G1_INT_ACK] = NI660X_G1_INT_ACK, - [NITIO_G2_INT_ACK] = NI660X_G2_INT_ACK, - [NITIO_G3_INT_ACK] = NI660X_G3_INT_ACK, - [NITIO_G0_STATUS] = NI660X_G0_STATUS, - [NITIO_G1_STATUS] = NI660X_G1_STATUS, - [NITIO_G2_STATUS] = NI660X_G2_STATUS, - [NITIO_G3_STATUS] = NI660X_G3_STATUS, - [NITIO_G0_INT_ENA] = NI660X_G0_INT_ENA, - [NITIO_G1_INT_ENA] = NI660X_G1_INT_ENA, - [NITIO_G2_INT_ENA] = NI660X_G2_INT_ENA, - [NITIO_G3_INT_ENA] = NI660X_G3_INT_ENA, -}; - /* Offset of the GPCT chips from the base-address of the card */ /* First chip is at base-address + 0x00, etc. */ static const unsigned GPCT_OFFSET[2] = { 0x0, 0x800 }; @@ -409,9 +270,8 @@ struct ni_660x_private { u64 io_dir; }; -static void ni_660x_write(struct comedi_device *dev, - unsigned int chip, unsigned int bits, - enum ni_660x_register reg) +static void ni_660x_write(struct comedi_device *dev, unsigned int chip, + unsigned int bits, unsigned int reg) { unsigned int addr = GPCT_OFFSET[chip] + ni_660x_reg_data[reg].offset; @@ -422,8 +282,7 @@ static void ni_660x_write(struct comedi_device *dev, } static unsigned int ni_660x_read(struct comedi_device *dev, - unsigned int chip, - enum ni_660x_register reg) + unsigned int chip, unsigned int reg) { unsigned int addr = GPCT_OFFSET[chip] + ni_660x_reg_data[reg].offset; @@ -436,34 +295,16 @@ static void ni_660x_gpct_write(struct ni_gpct *counter, unsigned int bits, enum ni_gpct_register reg) { struct comedi_device *dev = counter->counter_dev->dev; - enum ni_660x_register ni_660x_register; - - if (reg < ARRAY_SIZE(ni_gpct_to_660x_register)) { - ni_660x_register = ni_gpct_to_660x_register[reg]; - } else { - dev_warn(dev->class_dev, "%s: unhandled register=0x%x\n", - __func__, reg); - return; - } - ni_660x_write(dev, counter->chip_index, bits, ni_660x_register); + ni_660x_write(dev, counter->chip_index, bits, reg); } static unsigned int ni_660x_gpct_read(struct ni_gpct *counter, enum ni_gpct_register reg) { struct comedi_device *dev = counter->counter_dev->dev; - enum ni_660x_register ni_660x_register; - - if (reg < ARRAY_SIZE(ni_gpct_to_660x_register)) { - ni_660x_register = ni_gpct_to_660x_register[reg]; - } else { - dev_warn(dev->class_dev, "%s: unhandled register=0x%x\n", - __func__, reg); - return 0; - } - return ni_660x_read(dev, counter->chip_index, ni_660x_register); + return ni_660x_read(dev, counter->chip_index, reg); } static inline void ni_660x_set_dma_channel(struct comedi_device *dev, -- cgit v0.10.2 From 80c67b37fc27a3fc0542916798242e4af8148f28 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:51 -0700 Subject: staging: comedi: ni_660x: remove spinlock 'dma_cfg_lock' This spinlock is only used to protect changes to the private data 'dma_cfg'. Before calling any function that would change the 'dma_cfg' the spinlock 'mite_channel_lock' is also locked. That spinlock is not unlocked until after the 'dma_cfg' change. Remove the redundant spinlock. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 85c793a..3b57ce5 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -263,8 +263,6 @@ struct ni_660x_private { spinlock_t mite_channel_lock; /* prevents races between interrupt and comedi_poll */ spinlock_t interrupt_lock; - /* protects dma_cfg changes */ - spinlock_t dma_cfg_lock; unsigned int dma_cfg[NI660X_MAX_CHIPS]; unsigned int io_cfg[NI660X_NUM_PFI_CHANNELS]; u64 io_dir; @@ -313,9 +311,7 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev, { struct ni_660x_private *devpriv = dev->private; unsigned int chip = counter->chip_index; - unsigned long flags; - spin_lock_irqsave(&devpriv->dma_cfg_lock, flags); devpriv->dma_cfg[chip] &= ~NI660X_DMA_CFG_SEL_MASK(mite_channel); devpriv->dma_cfg[chip] |= NI660X_DMA_CFG_SEL(mite_channel, counter->counter_index); @@ -323,7 +319,6 @@ static inline void ni_660x_set_dma_channel(struct comedi_device *dev, NI660X_DMA_CFG_RESET(mite_channel), NI660X_DMA_CFG); mmiowb(); - spin_unlock_irqrestore(&devpriv->dma_cfg_lock, flags); } static inline void ni_660x_unset_dma_channel(struct comedi_device *dev, @@ -332,14 +327,11 @@ static inline void ni_660x_unset_dma_channel(struct comedi_device *dev, { struct ni_660x_private *devpriv = dev->private; unsigned int chip = counter->chip_index; - unsigned long flags; - spin_lock_irqsave(&devpriv->dma_cfg_lock, flags); devpriv->dma_cfg[chip] &= ~NI660X_DMA_CFG_SEL_MASK(mite_channel); devpriv->dma_cfg[chip] |= NI660X_DMA_CFG_SEL_NONE(mite_channel); ni_660x_write(dev, chip, devpriv->dma_cfg[chip], NI660X_DMA_CFG); mmiowb(); - spin_unlock_irqrestore(&devpriv->dma_cfg_lock, flags); } static int ni_660x_request_mite_channel(struct comedi_device *dev, @@ -500,7 +492,6 @@ static int ni_660x_allocate_private(struct comedi_device *dev) spin_lock_init(&devpriv->mite_channel_lock); spin_lock_init(&devpriv->interrupt_lock); - spin_lock_init(&devpriv->dma_cfg_lock); for (i = 0; i < NI660X_NUM_PFI_CHANNELS; ++i) devpriv->io_cfg[i] = NI_660X_PFI_OUTPUT_COUNTER; -- cgit v0.10.2 From 8f266d508c7aa7dad84fbb0d793aa95e8af95169 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:52 -0700 Subject: staging: comedi: ni_660x: refactor GPCT_OFFSET This driver supports boards that have 1 or 2 TIO chips with base addresses 0x800 apart. Replace the static const array 'GPCT_OFFSET' with a define and calculate the base address based on the chip index. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 3b57ce5..73ccd62 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -204,9 +204,7 @@ static const struct ni_660x_register_data ni_660x_reg_data[NI660X_NUM_REGS] = { [NI660X_IO_CFG_38_39] = { 0x7a2, 2 } /* read/write */ }; -/* Offset of the GPCT chips from the base-address of the card */ -/* First chip is at base-address + 0x00, etc. */ -static const unsigned GPCT_OFFSET[2] = { 0x0, 0x800 }; +#define NI660X_CHIP_OFFSET 0x800 enum ni_660x_boardid { BOARD_PCI6601, @@ -271,7 +269,8 @@ struct ni_660x_private { static void ni_660x_write(struct comedi_device *dev, unsigned int chip, unsigned int bits, unsigned int reg) { - unsigned int addr = GPCT_OFFSET[chip] + ni_660x_reg_data[reg].offset; + unsigned int addr = (chip * NI660X_CHIP_OFFSET) + + ni_660x_reg_data[reg].offset; if (ni_660x_reg_data[reg].size == 2) writew(bits, dev->mmio + addr); @@ -282,7 +281,8 @@ static void ni_660x_write(struct comedi_device *dev, unsigned int chip, static unsigned int ni_660x_read(struct comedi_device *dev, unsigned int chip, unsigned int reg) { - unsigned int addr = GPCT_OFFSET[chip] + ni_660x_reg_data[reg].offset; + unsigned int addr = (chip * NI660X_CHIP_OFFSET) + + ni_660x_reg_data[reg].offset; if (ni_660x_reg_data[reg].size == 2) return readw(dev->mmio + addr); -- cgit v0.10.2 From 47470216cc2fe413156aa44d7ae55e65712b0931 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:53 -0700 Subject: staging: comedi: ni_660x: update the MODULE_DESCRIPTION Change the generic MODULE_DESCRIPTION text to something more useful. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 73ccd62..4345bdc 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -940,5 +940,5 @@ static struct pci_driver ni_660x_pci_driver = { module_comedi_pci_driver(ni_660x_driver, ni_660x_pci_driver); MODULE_AUTHOR("Comedi http://www.comedi.org"); -MODULE_DESCRIPTION("Comedi low-level driver"); +MODULE_DESCRIPTION("Comedi driver for NI 660x counter/timer boards"); MODULE_LICENSE("GPL"); -- cgit v0.10.2 From 581867bd9151ee77fad4b0fe47af96d923ac9ec2 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 12:24:29 -0700 Subject: staging: comedi: dt282x: refactor dt282x_ns_to_timer() Define the pacer clock limits and remove the magic numbers. Refactor the code to use a common path to return the actual 'ns' timing and the timer divisor value. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index 06a87a1..e6958ea 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -113,6 +113,17 @@ #define DT2821_SUPCSR_XCLK BIT(1) #define DT2821_SUPCSR_BDINIT BIT(0) #define DT2821_TMRCTR_REG 0x0e +#define DT2821_TMRCTR_PRESCALE(x) (((x) & 0xf) << 8) +#define DT2821_TMRCTR_DIVIDER(x) ((255 - ((x) & 0xff)) << 0) + +/* Pacer Clock */ +#define DT2821_OSC_BASE 250 /* 4 MHz (in nanoseconds) */ +#define DT2821_PRESCALE(x) BIT(x) +#define DT2821_PRESCALE_MAX 15 +#define DT2821_DIVIDER_MAX 255 +#define DT2821_OSC_MAX (DT2821_OSC_BASE * \ + DT2821_PRESCALE(DT2821_PRESCALE_MAX) * \ + DT2821_DIVIDER_MAX) static const struct comedi_lrange range_dt282x_ai_lo_bipolar = { 4, { @@ -365,10 +376,10 @@ static unsigned int dt282x_ns_to_timer(unsigned int *ns, unsigned int flags) { unsigned int prescale, base, divider; - for (prescale = 0; prescale < 16; prescale++) { - if (prescale == 1) + for (prescale = 0; prescale <= DT2821_PRESCALE_MAX; prescale++) { + if (prescale == 1) /* 0 and 1 are both divide by 1 */ continue; - base = 250 * (1 << prescale); + base = DT2821_OSC_BASE * DT2821_PRESCALE(prescale); switch (flags & CMDF_ROUND_MASK) { case CMDF_ROUND_NEAREST: default: @@ -381,15 +392,17 @@ static unsigned int dt282x_ns_to_timer(unsigned int *ns, unsigned int flags) divider = DIV_ROUND_UP(*ns, base); break; } - if (divider < 256) { - *ns = divider * base; - return (prescale << 8) | (255 - divider); - } + if (divider <= DT2821_DIVIDER_MAX) + break; + } + if (divider > DT2821_DIVIDER_MAX) { + prescale = DT2821_PRESCALE_MAX; + divider = DT2821_DIVIDER_MAX; + base = DT2821_OSC_BASE * DT2821_PRESCALE(prescale); } - base = 250 * (1 << 15); - divider = 255; *ns = divider * base; - return (15 << 8) | (255 - divider); + return DT2821_TMRCTR_PRESCALE(prescale) | + DT2821_TMRCTR_DIVIDER(divider); } static void dt282x_munge(struct comedi_device *dev, @@ -689,8 +702,7 @@ static int dt282x_ai_cmdtest(struct comedi_device *dev, err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 4000); -#define SLOWEST_TIMER (250*(1<<15)*255) - err |= comedi_check_trigger_arg_max(&cmd->convert_arg, SLOWEST_TIMER); + err |= comedi_check_trigger_arg_max(&cmd->convert_arg, DT2821_OSC_MAX); err |= comedi_check_trigger_arg_min(&cmd->convert_arg, board->ai_speed); err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len); -- cgit v0.10.2 From 20ea5c3506abfe46c98dfa47d1bf933e2efa15c9 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 12:24:30 -0700 Subject: staging: comedi: dt282x: remove redundant comedi_check_trigger_arg_min() The 'convert_arg' sets the acquisition timing of the analog input command. The maximum speed (the minimum timing) depends on the board 'ai_speed' which if always >= 4000. Remove the redundant 'min' check, Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index e6958ea..661c3ad 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -697,11 +697,7 @@ static int dt282x_ai_cmdtest(struct comedi_device *dev, /* Step 3: check if arguments are trivially valid */ err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); - err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, 0); - - err |= comedi_check_trigger_arg_min(&cmd->convert_arg, 4000); - err |= comedi_check_trigger_arg_max(&cmd->convert_arg, DT2821_OSC_MAX); err |= comedi_check_trigger_arg_min(&cmd->convert_arg, board->ai_speed); err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg, -- cgit v0.10.2 From f91e45e2acbd300c5042c9ce0133dbc602da9788 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 12:24:31 -0700 Subject: staging: comedi: dt282x: remove unnecessary comment The "Configuration options" are documented in the comedi driver comment block. Remove the redundant comment before the drivers (*attach) function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index 661c3ad..d5295bb 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -1093,20 +1093,6 @@ static int dt282x_initialize(struct comedi_device *dev) return 0; } -/* - options: - 0 i/o base - 1 irq - 2 dma1 - 3 dma2 - 4 0=single ended, 1=differential - 5 ai 0=straight binary, 1=2's comp - 6 ao0 0=straight binary, 1=2's comp - 7 ao1 0=straight binary, 1=2's comp - 8 ai 0=±10 V, 1=0-10 V, 2=±5 V, 3=0-5 V - 9 ao0 0=±10 V, 1=0-10 V, 2=±5 V, 3=0-5 V, 4=±2.5 V - 10 ao1 0=±10 V, 1=0-10 V, 2=±5 V, 3=0-5 V, 4=±2.5 V - */ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct dt282x_board *board = dev->board_ptr; -- cgit v0.10.2 From c5f764057f2313673aaf046776e6d573bf2662b6 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:21:35 -0700 Subject: staging: comedi: ni_labpc: remove some unnecessary defines The EEPROM_SIZE and NUM_AO_CHAN defines are only used once and they don't add any significant clarity to the driver. They are also pretty generic symbol names. Remove them and just open code the values. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_labpc.h b/drivers/staging/comedi/drivers/ni_labpc.h index 83f878a..74db3ba 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.h +++ b/drivers/staging/comedi/drivers/ni_labpc.h @@ -19,9 +19,6 @@ #ifndef _NI_LABPC_H #define _NI_LABPC_H -#define EEPROM_SIZE 256 /* 256 byte eeprom */ -#define NUM_AO_CHAN 2 /* boards have two analog output channels */ - enum transfer_type { fifo_not_empty_transfer, fifo_half_full_transfer, isa_dma_transfer }; diff --git a/drivers/staging/comedi/drivers/ni_labpc_common.c b/drivers/staging/comedi/drivers/ni_labpc_common.c index 863afb2..55ab05e 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_common.c +++ b/drivers/staging/comedi/drivers/ni_labpc_common.c @@ -1261,7 +1261,7 @@ int labpc_common_attach(struct comedi_device *dev, if (board->has_ao) { s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_GROUND; - s->n_chan = NUM_AO_CHAN; + s->n_chan = 2; s->maxdata = 0x0fff; s->range_table = &range_labpc_ao; s->insn_write = labpc_ao_insn_write; @@ -1307,12 +1307,12 @@ int labpc_common_attach(struct comedi_device *dev, s->type = COMEDI_SUBD_UNUSED; } - /* EEPROM */ + /* EEPROM (256 bytes) */ s = &dev->subdevices[4]; if (board->is_labpc1200) { s->type = COMEDI_SUBD_MEMORY; s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; - s->n_chan = EEPROM_SIZE; + s->n_chan = 256; s->maxdata = 0xff; s->insn_write = labpc_eeprom_insn_write; -- cgit v0.10.2 From 447785c641cafe586bcb6678e63e436904536432 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:21:36 -0700 Subject: staging: comedi: ni_labpc_regs.h: tidy up bit defines As suggested by checkpatch.pl: CHECK: Prefer using the BIT macro Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_labpc_regs.h b/drivers/staging/comedi/drivers/ni_labpc_regs.h index 2a274a3..8c52179 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_regs.h +++ b/drivers/staging/comedi/drivers/ni_labpc_regs.h @@ -9,32 +9,32 @@ * Register map (all registers are 8-bit) */ #define STAT1_REG 0x00 /* R: Status 1 reg */ -#define STAT1_DAVAIL (1 << 0) -#define STAT1_OVERRUN (1 << 1) -#define STAT1_OVERFLOW (1 << 2) -#define STAT1_CNTINT (1 << 3) -#define STAT1_GATA0 (1 << 5) -#define STAT1_EXTGATA0 (1 << 6) +#define STAT1_DAVAIL BIT(0) +#define STAT1_OVERRUN BIT(1) +#define STAT1_OVERFLOW BIT(2) +#define STAT1_CNTINT BIT(3) +#define STAT1_GATA0 BIT(5) +#define STAT1_EXTGATA0 BIT(6) #define CMD1_REG 0x00 /* W: Command 1 reg */ #define CMD1_MA(x) (((x) & 0x7) << 0) -#define CMD1_TWOSCMP (1 << 3) +#define CMD1_TWOSCMP BIT(3) #define CMD1_GAIN(x) (((x) & 0x7) << 4) -#define CMD1_SCANEN (1 << 7) +#define CMD1_SCANEN BIT(7) #define CMD2_REG 0x01 /* W: Command 2 reg */ -#define CMD2_PRETRIG (1 << 0) -#define CMD2_HWTRIG (1 << 1) -#define CMD2_SWTRIG (1 << 2) -#define CMD2_TBSEL (1 << 3) -#define CMD2_2SDAC0 (1 << 4) -#define CMD2_2SDAC1 (1 << 5) -#define CMD2_LDAC(x) (1 << (6 + (x))) +#define CMD2_PRETRIG BIT(0) +#define CMD2_HWTRIG BIT(1) +#define CMD2_SWTRIG BIT(2) +#define CMD2_TBSEL BIT(3) +#define CMD2_2SDAC0 BIT(4) +#define CMD2_2SDAC1 BIT(5) +#define CMD2_LDAC(x) BIT(6 + ((x) & 0x1)) #define CMD3_REG 0x02 /* W: Command 3 reg */ -#define CMD3_DMAEN (1 << 0) -#define CMD3_DIOINTEN (1 << 1) -#define CMD3_DMATCINTEN (1 << 2) -#define CMD3_CNTINTEN (1 << 3) -#define CMD3_ERRINTEN (1 << 4) -#define CMD3_FIFOINTEN (1 << 5) +#define CMD3_DMAEN BIT(0) +#define CMD3_DIOINTEN BIT(1) +#define CMD3_DMATCINTEN BIT(2) +#define CMD3_CNTINTEN BIT(3) +#define CMD3_ERRINTEN BIT(4) +#define CMD3_FIFOINTEN BIT(5) #define ADC_START_CONVERT_REG 0x03 /* W: Start Convert reg */ #define DAC_LSB_REG(x) (0x04 + 2 * (x)) /* W: DAC0/1 LSB reg */ #define DAC_MSB_REG(x) (0x05 + 2 * (x)) /* W: DAC0/1 MSB reg */ @@ -43,32 +43,32 @@ #define DMATC_CLEAR_REG 0x0a /* W: DMA Interrupt Clear reg */ #define TIMER_CLEAR_REG 0x0c /* W: Timer Interrupt Clear reg */ #define CMD6_REG 0x0e /* W: Command 6 reg */ -#define CMD6_NRSE (1 << 0) -#define CMD6_ADCUNI (1 << 1) -#define CMD6_DACUNI(x) (1 << (2 + (x))) -#define CMD6_HFINTEN (1 << 5) -#define CMD6_DQINTEN (1 << 6) -#define CMD6_SCANUP (1 << 7) +#define CMD6_NRSE BIT(0) +#define CMD6_ADCUNI BIT(1) +#define CMD6_DACUNI(x) BIT(2 + ((x) & 0x1)) +#define CMD6_HFINTEN BIT(5) +#define CMD6_DQINTEN BIT(6) +#define CMD6_SCANUP BIT(7) #define CMD4_REG 0x0f /* W: Command 3 reg */ -#define CMD4_INTSCAN (1 << 0) -#define CMD4_EOIRCV (1 << 1) -#define CMD4_ECLKDRV (1 << 2) -#define CMD4_SEDIFF (1 << 3) -#define CMD4_ECLKRCV (1 << 4) +#define CMD4_INTSCAN BIT(0) +#define CMD4_EOIRCV BIT(1) +#define CMD4_ECLKDRV BIT(2) +#define CMD4_SEDIFF BIT(3) +#define CMD4_ECLKRCV BIT(4) #define DIO_BASE_REG 0x10 /* R/W: 8255 DIO base reg */ #define COUNTER_A_BASE_REG 0x14 /* R/W: 8253 Counter A base reg */ #define COUNTER_B_BASE_REG 0x18 /* R/W: 8253 Counter B base reg */ #define CMD5_REG 0x1c /* W: Command 5 reg */ -#define CMD5_WRTPRT (1 << 2) -#define CMD5_DITHEREN (1 << 3) -#define CMD5_CALDACLD (1 << 4) -#define CMD5_SCLK (1 << 5) -#define CMD5_SDATA (1 << 6) -#define CMD5_EEPROMCS (1 << 7) +#define CMD5_WRTPRT BIT(2) +#define CMD5_DITHEREN BIT(3) +#define CMD5_CALDACLD BIT(4) +#define CMD5_SCLK BIT(5) +#define CMD5_SDATA BIT(6) +#define CMD5_EEPROMCS BIT(7) #define STAT2_REG 0x1d /* R: Status 2 reg */ -#define STAT2_PROMOUT (1 << 0) -#define STAT2_OUTA1 (1 << 1) -#define STAT2_FIFONHF (1 << 2) +#define STAT2_PROMOUT BIT(0) +#define STAT2_OUTA1 BIT(1) +#define STAT2_FIFONHF BIT(2) #define INTERVAL_COUNT_REG 0x1e /* W: Interval Counter Data reg */ #define INTERVAL_STROBE_REG 0x1f /* W: Interval Counter Strobe reg */ -- cgit v0.10.2 From a444abfc668405746767eb53f920531b2d40e8af Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:21:37 -0700 Subject: staging: comedi: ni_labpc_common: tidy up block comments Fix the checkpatch.pl issues: WARNING: Block comments use a trailing */ on a separate line Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_labpc_common.c b/drivers/staging/comedi/drivers/ni_labpc_common.c index 55ab05e..b0dfb8e 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_common.c +++ b/drivers/staging/comedi/drivers/ni_labpc_common.c @@ -84,8 +84,10 @@ static const struct comedi_lrange range_labpc_ao = { } }; -/* functions that do inb/outb and readb/writeb so we can use - * function pointers to decide which to use */ +/* + * functions that do inb/outb and readb/writeb so we can use + * function pointers to decide which to use + */ static unsigned int labpc_inb(struct comedi_device *dev, unsigned long reg) { return inb(dev->iobase + reg); @@ -656,19 +658,24 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) /* figure out what method we will use to transfer data */ if (devpriv->dma && - /* dma unsafe at RT priority, - * and too much setup time for CMDF_WAKE_EOS */ - (cmd->flags & (CMDF_WAKE_EOS | CMDF_PRIORITY)) == 0) + (cmd->flags & (CMDF_WAKE_EOS | CMDF_PRIORITY)) == 0) { + /* + * dma unsafe at RT priority, + * and too much setup time for CMDF_WAKE_EOS + */ xfer = isa_dma_transfer; - else if (/* pc-plus has no fifo-half full interrupt */ - board->is_labpc1200 && - /* wake-end-of-scan should interrupt on fifo not empty */ - (cmd->flags & CMDF_WAKE_EOS) == 0 && - /* make sure we are taking more than just a few points */ - (cmd->stop_src != TRIG_COUNT || devpriv->count > 256)) + } else if (board->is_labpc1200 && + (cmd->flags & CMDF_WAKE_EOS) == 0 && + (cmd->stop_src != TRIG_COUNT || devpriv->count > 256)) { + /* + * pc-plus has no fifo-half full interrupt + * wake-end-of-scan should interrupt on fifo not empty + * make sure we are taking more than just a few points + */ xfer = fifo_half_full_transfer; - else + } else { xfer = fifo_not_empty_transfer; + } devpriv->current_transfer = xfer; labpc_ai_set_chan_and_gain(dev, mode, chan, range, aref); @@ -679,9 +686,11 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) /* manual says to set scan enable bit on second pass */ if (mode == MODE_MULT_CHAN_UP || mode == MODE_MULT_CHAN_DOWN) { devpriv->cmd1 |= CMD1_SCANEN; - /* need a brief delay before enabling scan, or scan - * list will get screwed when you switch - * between scan up to scan down mode - dunno why */ + /* + * Need a brief delay before enabling scan, or scan + * list will get screwed when you switch between + * scan up to scan down mode - dunno why. + */ udelay(1); devpriv->write_byte(dev, devpriv->cmd1, CMD1_REG); } @@ -728,8 +737,10 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) devpriv->cmd4 = 0; if (cmd->convert_src != TRIG_EXT) devpriv->cmd4 |= CMD4_ECLKRCV; - /* XXX should discard first scan when using interval scanning - * since manual says it is not synced with scan clock */ + /* + * XXX should discard first scan when using interval scanning + * since manual says it is not synced with scan clock. + */ if (!labpc_use_continuous_mode(cmd, mode)) { devpriv->cmd4 |= CMD4_INTSCAN; if (cmd->scan_begin_src == TRIG_EXT) @@ -795,8 +806,10 @@ static int labpc_drain_fifo(struct comedi_device *dev) return 0; } -/* makes sure all data acquired by board is transferred to comedi (used - * when acquisition is terminated by stop_src == TRIG_EXT). */ +/* + * Makes sure all data acquired by board is transferred to comedi (used + * when acquisition is terminated by stop_src == TRIG_EXT). + */ static void labpc_drain_dregs(struct comedi_device *dev) { struct labpc_private *devpriv = dev->private; @@ -907,9 +920,11 @@ static int labpc_ao_insn_write(struct comedi_device *dev, channel = CR_CHAN(insn->chanspec); - /* turn off pacing of analog output channel */ - /* note: hardware bug in daqcard-1200 means pacing cannot - * be independently enabled/disabled for its the two channels */ + /* + * Turn off pacing of analog output channel. + * NOTE: hardware bug in daqcard-1200 means pacing cannot + * be independently enabled/disabled for its the two channels. + */ spin_lock_irqsave(&dev->spinlock, flags); devpriv->cmd2 &= ~CMD2_LDAC(channel); devpriv->write_byte(dev, devpriv->cmd2, CMD2_REG); -- cgit v0.10.2 From a0b201caebfa863d89f0685127117c6c0dfe8c85 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:21:38 -0700 Subject: staging: comedi: ni_labpc_cs: fix block comment issues Fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines WARNING: line over 80 characters Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c index a1c69ac..3d4d0b9 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_cs.c +++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c @@ -1,57 +1,50 @@ /* - comedi/drivers/ni_labpc_cs.c - Driver for National Instruments daqcard-1200 boards - Copyright (C) 2001, 2002, 2003 Frank Mori Hess - - PCMCIA crap is adapted from dummy_cs.c 1.31 2001/08/24 12:13:13 - from the pcmcia package. - The initial developer of the pcmcia dummy_cs.c code is David A. Hinds - . Portions created by David A. Hinds - are Copyright (C) 1999 David A. Hinds. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ -/* -Driver: ni_labpc_cs -Description: National Instruments Lab-PC (& compatibles) -Author: Frank Mori Hess -Devices: [National Instruments] DAQCard-1200 (daqcard-1200) -Status: works - -Thanks go to Fredrik Lingvall for much testing and perseverance in -helping to debug daqcard-1200 support. - -The 1200 series boards have onboard calibration dacs for correcting -analog input/output offsets and gains. The proper settings for these -caldacs are stored on the board's eeprom. To read the caldac values -from the eeprom and store them into a file that can be then be used by -comedilib, use the comedi_calibrate program. - -Configuration options: - none - -The daqcard-1200 has quirky chanlist requirements -when scanning multiple channels. Multiple channel scan -sequence must start at highest channel, then decrement down to -channel 0. Chanlists consisting of all one channel -are also legal, and allow you to pace conversions in bursts. - -*/ + * Driver for National Instruments daqcard-1200 boards + * Copyright (C) 2001, 2002, 2003 Frank Mori Hess + * + * PCMCIA crap is adapted from dummy_cs.c 1.31 2001/08/24 12:13:13 + * from the pcmcia package. + * The initial developer of the pcmcia dummy_cs.c code is David A. Hinds + * . Portions created by David A. Hinds + * are Copyright (C) 1999 David A. Hinds. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * General Public License for more details. + */ /* - -NI manuals: -340988a (daqcard-1200) - -*/ + * Driver: ni_labpc_cs + * Description: National Instruments Lab-PC (& compatibles) + * Author: Frank Mori Hess + * Devices: [National Instruments] DAQCard-1200 (daqcard-1200) + * Status: works + * + * Thanks go to Fredrik Lingvall for much testing and perseverance in + * helping to debug daqcard-1200 support. + * + * The 1200 series boards have onboard calibration dacs for correcting + * analog input/output offsets and gains. The proper settings for these + * caldacs are stored on the board's eeprom. To read the caldac values + * from the eeprom and store them into a file that can be then be used by + * comedilib, use the comedi_calibrate program. + * + * Configuration options: none + * + * The daqcard-1200 has quirky chanlist requirements when scanning multiple + * channels. Multiple channel scan sequence must start at highest channel, + * then decrement down to channel 0. Chanlists consisting of all one channel + * are also legal, and allow you to pace conversions in bursts. + * + * NI manuals: + * 340988a (daqcard-1200) + */ #include -- cgit v0.10.2 From 0edf7b85d31f5255814483dbedd70ed13456e7a5 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:21:39 -0700 Subject: staging: comedi: ni_labpc_pci: tidy up bit define As suggested by checkpatch.pl: CHECK: Prefer using the BIT macro Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_labpc_pci.c b/drivers/staging/comedi/drivers/ni_labpc_pci.c index 77d4038..cac0891 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_pci.c +++ b/drivers/staging/comedi/drivers/ni_labpc_pci.c @@ -51,8 +51,8 @@ static const struct labpc_boardinfo labpc_pci_boards[] = { }; /* ripped from mite.h and mite_setup2() to avoid mite dependency */ -#define MITE_IODWBSR 0xc0 /* IO Device Window Base Size Register */ -#define WENAB (1 << 7) /* window enable */ +#define MITE_IODWBSR 0xc0 /* IO Device Window Base Size Register */ +#define WENAB BIT(7) /* window enable */ static int labpc_pci_mite_init(struct pci_dev *pcidev) { -- cgit v0.10.2 From 2460e3cd9f5fad5630b3f9ce556bd37b7b5323f0 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:21:40 -0700 Subject: staging: comedi: ni_labpc.h: fix block comment issues Fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_labpc.h b/drivers/staging/comedi/drivers/ni_labpc.h index 74db3ba..be8d5cd 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.h +++ b/drivers/staging/comedi/drivers/ni_labpc.h @@ -1,20 +1,18 @@ /* - ni_labpc.h - - Header for ni_labpc.c and ni_labpc_cs.c - - Copyright (C) 2003 Frank Mori Hess - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * Header for ni_labpc ISA/PCMCIA/PCI drivers + * + * Copyright (C) 2003 Frank Mori Hess + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ #ifndef _NI_LABPC_H #define _NI_LABPC_H -- cgit v0.10.2 From bed05b6c3434e62310c2e37ef234f02ce57cf74d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:40 -0700 Subject: staging: comedi: ni_tio: make ni_gpct_device_destroy() NULL pointer safe Modify the pointer check to make this function NULL pointer safe. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index b74e44e..623fc6c 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -1413,7 +1413,7 @@ EXPORT_SYMBOL_GPL(ni_gpct_device_construct); void ni_gpct_device_destroy(struct ni_gpct_device *counter_dev) { - if (!counter_dev->counters) + if (!counter_dev) return; kfree(counter_dev->counters); kfree(counter_dev); -- cgit v0.10.2 From 99307a69bf7166325bb8f0b1f1afcb0a0a1aca9a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:10:42 -0700 Subject: staging: comedi: ni_mio_common: ni_gpct_device_destroy() can handle a NULL pointer Remove the unnecessary NULL pointer check. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index dcaf7e8..71c8fd2 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -5675,8 +5675,6 @@ static void mio_common_detach(struct comedi_device *dev) { struct ni_private *devpriv = dev->private; - if (devpriv) { - if (devpriv->counter_dev) - ni_gpct_device_destroy(devpriv->counter_dev); - } + if (devpriv) + ni_gpct_device_destroy(devpriv->counter_dev); } -- cgit v0.10.2 From 1d734e3efabc6a4e6c68b2b21f626af1799124d6 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:29:27 -0700 Subject: staging: comedi: z8536: tidy up bit defines Fix the checkpatch.pl issues: CHECK: Prefer using the BIT macro Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/z8536.h b/drivers/staging/comedi/drivers/z8536.h index 7be5310..47eadbf 100644 --- a/drivers/staging/comedi/drivers/z8536.h +++ b/drivers/staging/comedi/drivers/z8536.h @@ -24,11 +24,12 @@ #define Z8536_CFG_CTRL_PCE_CT3E BIT(4) /* Port C & C/T 3 Enable */ #define Z8536_CFG_CTRL_PLC BIT(3) /* Port A/B Link Control */ #define Z8536_CFG_CTRL_PAE BIT(2) /* Port A Enable */ -#define Z8536_CFG_CTRL_LC_INDEP (0 << 0)/* C/Ts Independent */ -#define Z8536_CFG_CTRL_LC_GATE (1 << 0)/* C/T 1 Out Gates C/T 2 */ -#define Z8536_CFG_CTRL_LC_TRIG (2 << 0)/* C/T 1 Out Triggers C/T 2 */ -#define Z8536_CFG_CTRL_LC_CLK (3 << 0)/* C/T 1 Out Clocks C/T 2 */ -#define Z8536_CFG_CTRL_LC_MASK (3 << 0)/* C/T Link Control mask */ +#define Z8536_CFG_CTRL_LC(x) (((x) & 0x3) << 0) /* Link Control */ +#define Z8536_CFG_CTRL_LC_INDEP Z8536_CFG_CTRL_LC(0)/* Independent */ +#define Z8536_CFG_CTRL_LC_GATE Z8536_CFG_CTRL_LC(1)/* 1 Gates 2 */ +#define Z8536_CFG_CTRL_LC_TRIG Z8536_CFG_CTRL_LC(2)/* 1 Triggers 2 */ +#define Z8536_CFG_CTRL_LC_CLK Z8536_CFG_CTRL_LC(3)/* 1 Clocks 2 */ +#define Z8536_CFG_CTRL_LC_MASK Z8536_CFG_CTRL_LC(3) /* Interrupt Vector registers */ #define Z8536_PA_INT_VECT_REG 0x02 @@ -43,15 +44,16 @@ #define Z8536_CT2_CMDSTAT_REG 0x0b #define Z8536_CT3_CMDSTAT_REG 0x0c #define Z8536_CT_CMDSTAT_REG(x) (0x0a + (x)) -#define Z8536_CMD_NULL (0 << 5)/* Null Code */ -#define Z8536_CMD_CLR_IP_IUS (1 << 5)/* Clear IP & IUS */ -#define Z8536_CMD_SET_IUS (2 << 5)/* Set IUS */ -#define Z8536_CMD_CLR_IUS (3 << 5)/* Clear IUS */ -#define Z8536_CMD_SET_IP (4 << 5)/* Set IP */ -#define Z8536_CMD_CLR_IP (5 << 5)/* Clear IP */ -#define Z8536_CMD_SET_IE (6 << 5)/* Set IE */ -#define Z8536_CMD_CLR_IE (7 << 5)/* Clear IE */ -#define Z8536_CMD_MASK (7 << 5) +#define Z8536_CMD(x) (((x) & 0x7) << 5) +#define Z8536_CMD_NULL Z8536_CMD(0) /* Null Code */ +#define Z8536_CMD_CLR_IP_IUS Z8536_CMD(1) /* Clear IP & IUS */ +#define Z8536_CMD_SET_IUS Z8536_CMD(2) /* Set IUS */ +#define Z8536_CMD_CLR_IUS Z8536_CMD(3) /* Clear IUS */ +#define Z8536_CMD_SET_IP Z8536_CMD(4) /* Set IP */ +#define Z8536_CMD_CLR_IP Z8536_CMD(5) /* Clear IP */ +#define Z8536_CMD_SET_IE Z8536_CMD(6) /* Set IE */ +#define Z8536_CMD_CLR_IE Z8536_CMD(7) /* Clear IE */ +#define Z8536_CMD_MASK Z8536_CMD(7) #define Z8536_STAT_IUS BIT(7) /* Interrupt Under Service */ #define Z8536_STAT_IE BIT(6) /* Interrupt Enable */ @@ -105,46 +107,51 @@ #define Z8536_CT_MODE_ETE BIT(4) /* External Trigger Enable */ #define Z8536_CT_MODE_EGE BIT(3) /* External Gate Enable */ #define Z8536_CT_MODE_REB BIT(2) /* Retrigger Enable Bit */ -#define Z8536_CT_MODE_DCS_PULSE (0 << 0)/* Duty Cycle - Pulse */ -#define Z8536_CT_MODE_DCS_ONESHOT (1 << 0)/* Duty Cycle - One-Shot */ -#define Z8536_CT_MODE_DCS_SQRWAVE (2 << 0)/* Duty Cycle - Square Wave */ -#define Z8536_CT_MODE_DCS_DO_NOT_USE (3 << 0)/* Duty Cycle - Do Not Use */ -#define Z8536_CT_MODE_DCS_MASK (3 << 0)/* Duty Cycle mask */ +#define Z8536_CT_MODE_DCS(x) (((x) & 0x3) << 0) /* Duty Cycle */ +#define Z8536_CT_MODE_DCS_PULSE Z8536_CT_MODE_DCS(0) /* Pulse */ +#define Z8536_CT_MODE_DCS_ONESHOT Z8536_CT_MODE_DCS(1) /* One-Shot */ +#define Z8536_CT_MODE_DCS_SQRWAVE Z8536_CT_MODE_DCS(2) /* Square Wave */ +#define Z8536_CT_MODE_DCS_DO_NOT_USE Z8536_CT_MODE_DCS(3) /* Do Not Use */ +#define Z8536_CT_MODE_DCS_MASK Z8536_CT_MODE_DCS(3) /* Port A/B Mode Specification registers */ #define Z8536_PA_MODE_REG 0x20 #define Z8536_PB_MODE_REG 0x28 -#define Z8536_PAB_MODE_PTS_BIT (0 << 6)/* Bit Port */ -#define Z8536_PAB_MODE_PTS_INPUT (1 << 6)/* Input Port */ -#define Z8536_PAB_MODE_PTS_OUTPUT (2 << 6)/* Output Port */ -#define Z8536_PAB_MODE_PTS_BIDIR (3 << 6)/* Bidirectional Port */ -#define Z8536_PAB_MODE_PTS_MASK (3 << 6)/* Port Type Select mask */ +#define Z8536_PAB_MODE_PTS(x) (((x) & 0x3) << 6) /* Port type */ +#define Z8536_PAB_MODE_PTS_BIT Z8536_PAB_MODE_PTS(0 << 6)/* Bit */ +#define Z8536_PAB_MODE_PTS_INPUT Z8536_PAB_MODE_PTS(1 << 6)/* Input */ +#define Z8536_PAB_MODE_PTS_OUTPUT Z8536_PAB_MODE_PTS(2 << 6)/* Output */ +#define Z8536_PAB_MODE_PTS_BIDIR Z8536_PAB_MODE_PTS(3 << 6)/* Bidir */ +#define Z8536_PAB_MODE_PTS_MASK Z8536_PAB_MODE_PTS(3 << 6) #define Z8536_PAB_MODE_ITB BIT(5) /* Interrupt on Two Bytes */ #define Z8536_PAB_MODE_SB BIT(4) /* Single Buffered mode */ #define Z8536_PAB_MODE_IMO BIT(3) /* Interrupt on Match Only */ -#define Z8536_PAB_MODE_PMS_DISABLE (0 << 1)/* Disable Pattern Match */ -#define Z8536_PAB_MODE_PMS_AND (1 << 1)/* "AND" mode */ -#define Z8536_PAB_MODE_PMS_OR (2 << 1)/* "OR" mode */ -#define Z8536_PAB_MODE_PMS_OR_PEV (3 << 1)/* "OR-Priority" mode */ -#define Z8536_PAB_MODE_PMS_MASK (3 << 1)/* Pattern Mode mask */ +#define Z8536_PAB_MODE_PMS(x) (((x) & 0x3) << 1) /* Pattern Mode */ +#define Z8536_PAB_MODE_PMS_DISABLE Z8536_PAB_MODE_PMS(0)/* Disabled */ +#define Z8536_PAB_MODE_PMS_AND Z8536_PAB_MODE_PMS(1)/* "AND" */ +#define Z8536_PAB_MODE_PMS_OR Z8536_PAB_MODE_PMS(2)/* "OR" */ +#define Z8536_PAB_MODE_PMS_OR_PEV Z8536_PAB_MODE_PMS(3)/* "OR-Priority" */ +#define Z8536_PAB_MODE_PMS_MASK Z8536_PAB_MODE_PMS(3) #define Z8536_PAB_MODE_LPM BIT(0) /* Latch on Pattern Match */ #define Z8536_PAB_MODE_DTE BIT(0) /* Deskew Timer Enabled */ /* Port A/B Handshake Specification registers */ #define Z8536_PA_HANDSHAKE_REG 0x21 #define Z8536_PB_HANDSHAKE_REG 0x29 -#define Z8536_PAB_HANDSHAKE_HST_INTER (0 << 6)/* Interlocked Handshake */ -#define Z8536_PAB_HANDSHAKE_HST_STROBED (1 << 6)/* Strobed Handshake */ -#define Z8536_PAB_HANDSHAKE_HST_PULSED (2 << 6)/* Pulsed Handshake */ -#define Z8536_PAB_HANDSHAKE_HST_3WIRE (3 << 6)/* Three-Wire Handshake */ -#define Z8536_PAB_HANDSHAKE_HST_MASK (3 << 6)/* Handshake Type mask */ -#define Z8536_PAB_HANDSHAKE_RWS_DISABLE (0 << 3)/* Req/Wait Disabled */ -#define Z8536_PAB_HANDSHAKE_RWS_OUTWAIT (1 << 3)/* Output Wait */ -#define Z8536_PAB_HANDSHAKE_RWS_INWAIT (3 << 3)/* Input Wait */ -#define Z8536_PAB_HANDSHAKE_RWS_SPREQ (4 << 3)/* Special Request */ -#define Z8536_PAB_HANDSHAKE_RWS_OUTREQ (5 << 4)/* Output Request */ -#define Z8536_PAB_HANDSHAKE_RWS_INREQ (7 << 3)/* Input Request */ -#define Z8536_PAB_HANDSHAKE_RWS_MASK (7 << 3)/* Req/Wait mask */ +#define Z8536_PAB_HANDSHAKE_HST(x) (((x) & 0x3) << 6) /* Handshake Type */ +#define Z8536_PAB_HANDSHAKE_HST_INTER Z8536_PAB_HANDSHAKE_HST(0)/*Interlock*/ +#define Z8536_PAB_HANDSHAKE_HST_STROBED Z8536_PAB_HANDSHAKE_HST(1)/* Strobed */ +#define Z8536_PAB_HANDSHAKE_HST_PULSED Z8536_PAB_HANDSHAKE_HST(2)/* Pulsed */ +#define Z8536_PAB_HANDSHAKE_HST_3WIRE Z8536_PAB_HANDSHAKE_HST(3)/* 3-Wire */ +#define Z8536_PAB_HANDSHAKE_HST_MASK Z8536_PAB_HANDSHAKE_HST(3) +#define Z8536_PAB_HANDSHAKE_RWS(x) (((x) & 0x7) << 3) /* Req/Wait */ +#define Z8536_PAB_HANDSHAKE_RWS_DISABLE Z8536_PAB_HANDSHAKE_RWS(0)/* Disabled */ +#define Z8536_PAB_HANDSHAKE_RWS_OUTWAIT Z8536_PAB_HANDSHAKE_RWS(1)/* Out Wait */ +#define Z8536_PAB_HANDSHAKE_RWS_INWAIT Z8536_PAB_HANDSHAKE_RWS(3)/* In Wait */ +#define Z8536_PAB_HANDSHAKE_RWS_SPREQ Z8536_PAB_HANDSHAKE_RWS(4)/* Special */ +#define Z8536_PAB_HANDSHAKE_RWS_OUTREQ Z8536_PAB_HANDSHAKE_RWS(5)/* Out Req */ +#define Z8536_PAB_HANDSHAKE_RWS_INREQ Z8536_PAB_HANDSHAKE_RWS(7)/* In Req */ +#define Z8536_PAB_HANDSHAKE_RWS_MASK Z8536_PAB_HANDSHAKE_RWS(7) #define Z8536_PAB_HANDSHAKE_DESKEW(x) ((x) << 0)/* Deskew Time */ #define Z8536_PAB_HANDSHAKE_DESKEW_MASK (3 << 0)/* Deskew Time mask */ -- cgit v0.10.2 From 5c0d139243c32ebfe1f4aabd3d2a9817e23e07a5 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:51:54 -0700 Subject: staging: comedi: plx9052.h: tidy up bit defines Fix the checkpatch.pl issues: CHECK: Prefer using the BIT macro Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/plx9052.h b/drivers/staging/comedi/drivers/plx9052.h index fbcf250..131ebff 100644 --- a/drivers/staging/comedi/drivers/plx9052.h +++ b/drivers/staging/comedi/drivers/plx9052.h @@ -25,55 +25,56 @@ * INTCSR - Interrupt Control/Status register */ #define PLX9052_INTCSR 0x4c -#define PLX9052_INTCSR_LI1ENAB (1 << 0) /* LI1 enabled */ -#define PLX9052_INTCSR_LI1POL (1 << 1) /* LI1 active high */ -#define PLX9052_INTCSR_LI1STAT (1 << 2) /* LI1 active */ -#define PLX9052_INTCSR_LI2ENAB (1 << 3) /* LI2 enabled */ -#define PLX9052_INTCSR_LI2POL (1 << 4) /* LI2 active high */ -#define PLX9052_INTCSR_LI2STAT (1 << 5) /* LI2 active */ -#define PLX9052_INTCSR_PCIENAB (1 << 6) /* PCIINT enabled */ -#define PLX9052_INTCSR_SOFTINT (1 << 7) /* generate soft int */ -#define PLX9052_INTCSR_LI1SEL (1 << 8) /* LI1 edge */ -#define PLX9052_INTCSR_LI2SEL (1 << 9) /* LI2 edge */ -#define PLX9052_INTCSR_LI1CLRINT (1 << 10) /* LI1 clear int */ -#define PLX9052_INTCSR_LI2CLRINT (1 << 11) /* LI2 clear int */ -#define PLX9052_INTCSR_ISAMODE (1 << 12) /* ISA interface mode */ +#define PLX9052_INTCSR_LI1ENAB BIT(0) /* LI1 enabled */ +#define PLX9052_INTCSR_LI1POL BIT(1) /* LI1 active high */ +#define PLX9052_INTCSR_LI1STAT BIT(2) /* LI1 active */ +#define PLX9052_INTCSR_LI2ENAB BIT(3) /* LI2 enabled */ +#define PLX9052_INTCSR_LI2POL BIT(4) /* LI2 active high */ +#define PLX9052_INTCSR_LI2STAT BIT(5) /* LI2 active */ +#define PLX9052_INTCSR_PCIENAB BIT(6) /* PCIINT enabled */ +#define PLX9052_INTCSR_SOFTINT BIT(7) /* generate soft int */ +#define PLX9052_INTCSR_LI1SEL BIT(8) /* LI1 edge */ +#define PLX9052_INTCSR_LI2SEL BIT(9) /* LI2 edge */ +#define PLX9052_INTCSR_LI1CLRINT BIT(10) /* LI1 clear int */ +#define PLX9052_INTCSR_LI2CLRINT BIT(11) /* LI2 clear int */ +#define PLX9052_INTCSR_ISAMODE BIT(12) /* ISA interface mode */ /* * CNTRL - User I/O, Direct Slave Response, Serial EEPROM, and * Initialization Control register */ #define PLX9052_CNTRL 0x50 -#define PLX9052_CNTRL_WAITO (1 << 0) /* UIO0 or WAITO# select */ -#define PLX9052_CNTRL_UIO0_DIR (1 << 1) /* UIO0 direction */ -#define PLX9052_CNTRL_UIO0_DATA (1 << 2) /* UIO0 data */ -#define PLX9052_CNTRL_LLOCKO (1 << 3) /* UIO1 or LLOCKo# select */ -#define PLX9052_CNTRL_UIO1_DIR (1 << 4) /* UIO1 direction */ -#define PLX9052_CNTRL_UIO1_DATA (1 << 5) /* UIO1 data */ -#define PLX9052_CNTRL_CS2 (1 << 6) /* UIO2 or CS2# select */ -#define PLX9052_CNTRL_UIO2_DIR (1 << 7) /* UIO2 direction */ -#define PLX9052_CNTRL_UIO2_DATA (1 << 8) /* UIO2 data */ -#define PLX9052_CNTRL_CS3 (1 << 9) /* UIO3 or CS3# select */ -#define PLX9052_CNTRL_UIO3_DIR (1 << 10) /* UIO3 direction */ -#define PLX9052_CNTRL_UIO3_DATA (1 << 11) /* UIO3 data */ -#define PLX9052_CNTRL_PCIBAR01 (0 << 12) /* bar 0 (mem) and 1 (I/O) */ -#define PLX9052_CNTRL_PCIBAR0 (1 << 12) /* bar 0 (mem) only */ -#define PLX9052_CNTRL_PCIBAR1 (2 << 12) /* bar 1 (I/O) only */ -#define PLX9052_CNTRL_PCI2_1_FEATURES (1 << 14) /* PCI r2.1 features enabled */ -#define PLX9052_CNTRL_PCI_R_W_FLUSH (1 << 15) /* read w/write flush mode */ -#define PLX9052_CNTRL_PCI_R_NO_FLUSH (1 << 16) /* read no flush mode */ -#define PLX9052_CNTRL_PCI_R_NO_WRITE (1 << 17) /* read no write mode */ -#define PLX9052_CNTRL_PCI_W_RELEASE (1 << 18) /* write release bus mode */ -#define PLX9052_CNTRL_RETRY_CLKS(x) (((x) & 0xf) << 19) /* slave retry clks */ -#define PLX9052_CNTRL_LOCK_ENAB (1 << 23) /* slave LOCK# enable */ +#define PLX9052_CNTRL_WAITO BIT(0) /* UIO0 or WAITO# select */ +#define PLX9052_CNTRL_UIO0_DIR BIT(1) /* UIO0 direction */ +#define PLX9052_CNTRL_UIO0_DATA BIT(2) /* UIO0 data */ +#define PLX9052_CNTRL_LLOCKO BIT(3) /* UIO1 or LLOCKo# select */ +#define PLX9052_CNTRL_UIO1_DIR BIT(4) /* UIO1 direction */ +#define PLX9052_CNTRL_UIO1_DATA BIT(5) /* UIO1 data */ +#define PLX9052_CNTRL_CS2 BIT(6) /* UIO2 or CS2# select */ +#define PLX9052_CNTRL_UIO2_DIR BIT(7) /* UIO2 direction */ +#define PLX9052_CNTRL_UIO2_DATA BIT(8) /* UIO2 data */ +#define PLX9052_CNTRL_CS3 BIT(9) /* UIO3 or CS3# select */ +#define PLX9052_CNTRL_UIO3_DIR BIT(10) /* UIO3 direction */ +#define PLX9052_CNTRL_UIO3_DATA BIT(11) /* UIO3 data */ +#define PLX9052_CNTRL_PCIBAR(x) (((x) & 0x3) << 12) +#define PLX9052_CNTRL_PCIBAR01 PLX9052_CNTRL_PCIBAR(0) /* mem and IO */ +#define PLX9052_CNTRL_PCIBAR0 PLX9052_CNTRL_PCIBAR(1) /* mem only */ +#define PLX9052_CNTRL_PCIBAR1 PLX9052_CNTRL_PCIBAR(2) /* IO only */ +#define PLX9052_CNTRL_PCI2_1_FEATURES BIT(14) /* PCI v2.1 features enabled */ +#define PLX9052_CNTRL_PCI_R_W_FLUSH BIT(15) /* read w/write flush mode */ +#define PLX9052_CNTRL_PCI_R_NO_FLUSH BIT(16) /* read no flush mode */ +#define PLX9052_CNTRL_PCI_R_NO_WRITE BIT(17) /* read no write mode */ +#define PLX9052_CNTRL_PCI_W_RELEASE BIT(18) /* write release bus mode */ +#define PLX9052_CNTRL_RETRY_CLKS(x) (((x) & 0xf) << 19) /* retry clks */ +#define PLX9052_CNTRL_LOCK_ENAB BIT(23) /* slave LOCK# enable */ #define PLX9052_CNTRL_EEPROM_MASK (0x1f << 24) /* EEPROM bits */ -#define PLX9052_CNTRL_EEPROM_CLK (1 << 24) /* EEPROM clock */ -#define PLX9052_CNTRL_EEPROM_CS (1 << 25) /* EEPROM chip select */ -#define PLX9052_CNTRL_EEPROM_DOUT (1 << 26) /* EEPROM write bit */ -#define PLX9052_CNTRL_EEPROM_DIN (1 << 27) /* EEPROM read bit */ -#define PLX9052_CNTRL_EEPROM_PRESENT (1 << 28) /* EEPROM present */ -#define PLX9052_CNTRL_RELOAD_CFG (1 << 29) /* reload configuration */ -#define PLX9052_CNTRL_PCI_RESET (1 << 30) /* PCI adapter reset */ -#define PLX9052_CNTRL_MASK_REV (1 << 31) /* mask revision */ +#define PLX9052_CNTRL_EEPROM_CLK BIT(24) /* EEPROM clock */ +#define PLX9052_CNTRL_EEPROM_CS BIT(25) /* EEPROM chip select */ +#define PLX9052_CNTRL_EEPROM_DOUT BIT(26) /* EEPROM write bit */ +#define PLX9052_CNTRL_EEPROM_DIN BIT(27) /* EEPROM read bit */ +#define PLX9052_CNTRL_EEPROM_PRESENT BIT(28) /* EEPROM present */ +#define PLX9052_CNTRL_RELOAD_CFG BIT(29) /* reload configuration */ +#define PLX9052_CNTRL_PCI_RESET BIT(30) /* PCI adapter reset */ +#define PLX9052_CNTRL_MASK_REV BIT(31) /* mask revision */ #endif /* _PLX9052_H_ */ -- cgit v0.10.2 From 2892b3fa16d8950b2385ad8fcd7ca84fa54aefaf Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 22 Mar 2016 11:51:55 -0700 Subject: staging: comedi: plx9052.h: fix block comment issues Fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/plx9052.h b/drivers/staging/comedi/drivers/plx9052.h index 131ebff..2892e65 100644 --- a/drivers/staging/comedi/drivers/plx9052.h +++ b/drivers/staging/comedi/drivers/plx9052.h @@ -1,22 +1,21 @@ /* - comedi/drivers/plx9052.h - Definitions for the PLX-9052 PCI interface chip - - Copyright (C) 2002 MEV Ltd. - - COMEDI - Linux Control and Measurement Device Interface - Copyright (C) 2000 David A. Schleef - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * Definitions for the PLX-9052 PCI interface chip + * + * Copyright (C) 2002 MEV Ltd. + * + * COMEDI - Linux Control and Measurement Device Interface + * Copyright (C) 2000 David A. Schleef + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ #ifndef _PLX9052_H_ #define _PLX9052_H_ -- cgit v0.10.2 From 12fc6688ea34bd8b378e105da46ca016177f7c84 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:37 -0700 Subject: staging: comedi: ni_tio_internal.h: tidy up bit defines Fix the checkpatch.pl issues: CHECK: Prefer using the BIT macro Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h index 2bceae4..c51e01e 100644 --- a/drivers/staging/comedi/drivers/ni_tio_internal.h +++ b/drivers/staging/comedi/drivers/ni_tio_internal.h @@ -24,68 +24,73 @@ #define NITIO_AUTO_INC_REG(x) (NITIO_G0_AUTO_INC + (x)) #define GI_AUTO_INC_MASK 0xff #define NITIO_CMD_REG(x) (NITIO_G0_CMD + (x)) -#define GI_ARM (1 << 0) -#define GI_SAVE_TRACE (1 << 1) -#define GI_LOAD (1 << 2) -#define GI_DISARM (1 << 4) +#define GI_ARM BIT(0) +#define GI_SAVE_TRACE BIT(1) +#define GI_LOAD BIT(2) +#define GI_DISARM BIT(4) #define GI_CNT_DIR(x) (((x) & 0x3) << 5) -#define GI_CNT_DIR_MASK (3 << 5) -#define GI_WRITE_SWITCH (1 << 7) -#define GI_SYNC_GATE (1 << 8) -#define GI_LITTLE_BIG_ENDIAN (1 << 9) -#define GI_BANK_SWITCH_START (1 << 10) -#define GI_BANK_SWITCH_MODE (1 << 11) -#define GI_BANK_SWITCH_ENABLE (1 << 12) -#define GI_ARM_COPY (1 << 13) -#define GI_SAVE_TRACE_COPY (1 << 14) -#define GI_DISARM_COPY (1 << 15) +#define GI_CNT_DIR_MASK GI_CNT_DIR(3) +#define GI_WRITE_SWITCH BIT(7) +#define GI_SYNC_GATE BIT(8) +#define GI_LITTLE_BIG_ENDIAN BIT(9) +#define GI_BANK_SWITCH_START BIT(10) +#define GI_BANK_SWITCH_MODE BIT(11) +#define GI_BANK_SWITCH_ENABLE BIT(12) +#define GI_ARM_COPY BIT(13) +#define GI_SAVE_TRACE_COPY BIT(14) +#define GI_DISARM_COPY BIT(15) #define NITIO_HW_SAVE_REG(x) (NITIO_G0_HW_SAVE + (x)) #define NITIO_SW_SAVE_REG(x) (NITIO_G0_SW_SAVE + (x)) #define NITIO_MODE_REG(x) (NITIO_G0_MODE + (x)) -#define GI_GATING_DISABLED (0 << 0) -#define GI_LEVEL_GATING (1 << 0) -#define GI_RISING_EDGE_GATING (2 << 0) -#define GI_FALLING_EDGE_GATING (3 << 0) -#define GI_GATING_MODE_MASK (3 << 0) -#define GI_GATE_ON_BOTH_EDGES (1 << 2) -#define GI_EDGE_GATE_STARTS_STOPS (0 << 3) -#define GI_EDGE_GATE_STOPS_STARTS (1 << 3) -#define GI_EDGE_GATE_STARTS (2 << 3) -#define GI_EDGE_GATE_NO_STARTS_OR_STOPS (3 << 3) -#define GI_EDGE_GATE_MODE_MASK (3 << 3) -#define GI_STOP_ON_GATE (0 << 5) -#define GI_STOP_ON_GATE_OR_TC (1 << 5) -#define GI_STOP_ON_GATE_OR_SECOND_TC (2 << 5) -#define GI_STOP_MODE_MASK (3 << 5) -#define GI_LOAD_SRC_SEL (1 << 7) -#define GI_OUTPUT_TC_PULSE (1 << 8) -#define GI_OUTPUT_TC_TOGGLE (2 << 8) -#define GI_OUTPUT_TC_OR_GATE_TOGGLE (3 << 8) -#define GI_OUTPUT_MODE_MASK (3 << 8) -#define GI_NO_HARDWARE_DISARM (0 << 10) -#define GI_DISARM_AT_TC (1 << 10) -#define GI_DISARM_AT_GATE (2 << 10) -#define GI_DISARM_AT_TC_OR_GATE (3 << 10) -#define GI_COUNTING_ONCE_MASK (3 << 10) -#define GI_LOADING_ON_TC (1 << 12) -#define GI_GATE_POL_INVERT (1 << 13) -#define GI_LOADING_ON_GATE (1 << 14) -#define GI_RELOAD_SRC_SWITCHING (1 << 15) +#define GI_GATING_MODE(x) (((x) & 0x3) << 0) +#define GI_GATING_DISABLED GI_GATING_MODE(0) +#define GI_LEVEL_GATING GI_GATING_MODE(1) +#define GI_RISING_EDGE_GATING GI_GATING_MODE(2) +#define GI_FALLING_EDGE_GATING GI_GATING_MODE(3) +#define GI_GATING_MODE_MASK GI_GATING_MODE(3) +#define GI_GATE_ON_BOTH_EDGES BIT(2) +#define GI_EDGE_GATE_MODE(x) (((x) & 0x3) << 3) +#define GI_EDGE_GATE_STARTS_STOPS GI_EDGE_GATE_MODE(0) +#define GI_EDGE_GATE_STOPS_STARTS GI_EDGE_GATE_MODE(1) +#define GI_EDGE_GATE_STARTS GI_EDGE_GATE_MODE(2) +#define GI_EDGE_GATE_NO_STARTS_OR_STOPS GI_EDGE_GATE_MODE(3) +#define GI_EDGE_GATE_MODE_MASK GI_EDGE_GATE_MODE(3) +#define GI_STOP_MODE(x) (((x) & 0x3) << 5) +#define GI_STOP_ON_GATE GI_STOP_MODE(0) +#define GI_STOP_ON_GATE_OR_TC GI_STOP_MODE(1) +#define GI_STOP_ON_GATE_OR_SECOND_TC GI_STOP_MODE(2) +#define GI_STOP_MODE_MASK GI_STOP_MODE(3) +#define GI_LOAD_SRC_SEL BIT(7) +#define GI_OUTPUT_MODE(x) (((x) & 0x3) << 8) +#define GI_OUTPUT_TC_PULSE GI_OUTPUT_MODE(1) +#define GI_OUTPUT_TC_TOGGLE GI_OUTPUT_MODE(2) +#define GI_OUTPUT_TC_OR_GATE_TOGGLE GI_OUTPUT_MODE(3) +#define GI_OUTPUT_MODE_MASK GI_OUTPUT_MODE(3) +#define GI_COUNTING_ONCE(x) (((x) & 0x3) << 10) +#define GI_NO_HARDWARE_DISARM GI_COUNTING_ONCE(0) +#define GI_DISARM_AT_TC GI_COUNTING_ONCE(1) +#define GI_DISARM_AT_GATE GI_COUNTING_ONCE(2) +#define GI_DISARM_AT_TC_OR_GATE GI_COUNTING_ONCE(3) +#define GI_COUNTING_ONCE_MASK GI_COUNTING_ONCE(3) +#define GI_LOADING_ON_TC BIT(12) +#define GI_GATE_POL_INVERT BIT(13) +#define GI_LOADING_ON_GATE BIT(14) +#define GI_RELOAD_SRC_SWITCHING BIT(15) #define NITIO_LOADA_REG(x) (NITIO_G0_LOADA + (x)) #define NITIO_LOADB_REG(x) (NITIO_G0_LOADB + (x)) #define NITIO_INPUT_SEL_REG(x) (NITIO_G0_INPUT_SEL + (x)) -#define GI_READ_ACKS_IRQ (1 << 0) -#define GI_WRITE_ACKS_IRQ (1 << 1) +#define GI_READ_ACKS_IRQ BIT(0) +#define GI_WRITE_ACKS_IRQ BIT(1) #define GI_BITS_TO_SRC(x) (((x) >> 2) & 0x1f) #define GI_SRC_SEL(x) (((x) & 0x1f) << 2) -#define GI_SRC_SEL_MASK (0x1f << 2) +#define GI_SRC_SEL_MASK GI_SRC_SEL(0x1f) #define GI_BITS_TO_GATE(x) (((x) >> 7) & 0x1f) #define GI_GATE_SEL(x) (((x) & 0x1f) << 7) -#define GI_GATE_SEL_MASK (0x1f << 7) -#define GI_GATE_SEL_LOAD_SRC (1 << 12) -#define GI_OR_GATE (1 << 13) -#define GI_OUTPUT_POL_INVERT (1 << 14) -#define GI_SRC_POL_INVERT (1 << 15) +#define GI_GATE_SEL_MASK GI_GATE_SEL(0x1f) +#define GI_GATE_SEL_LOAD_SRC BIT(12) +#define GI_OR_GATE BIT(13) +#define GI_OUTPUT_POL_INVERT BIT(14) +#define GI_SRC_POL_INVERT BIT(15) #define NITIO_CNT_MODE_REG(x) (NITIO_G0_CNT_MODE + (x)) #define GI_CNT_MODE(x) (((x) & 0x7) << 0) #define GI_CNT_MODE_NORMAL GI_CNT_MODE(0) @@ -94,67 +99,67 @@ #define GI_CNT_MODE_QUADX4 GI_CNT_MODE(3) #define GI_CNT_MODE_TWO_PULSE GI_CNT_MODE(4) #define GI_CNT_MODE_SYNC_SRC GI_CNT_MODE(6) -#define GI_CNT_MODE_MASK (7 << 0) -#define GI_INDEX_MODE (1 << 4) +#define GI_CNT_MODE_MASK GI_CNT_MODE(7) +#define GI_INDEX_MODE BIT(4) #define GI_INDEX_PHASE(x) (((x) & 0x3) << 5) -#define GI_INDEX_PHASE_MASK (3 << 5) -#define GI_HW_ARM_ENA (1 << 7) +#define GI_INDEX_PHASE_MASK GI_INDEX_PHASE(3) +#define GI_HW_ARM_ENA BIT(7) #define GI_HW_ARM_SEL(x) ((x) << 8) -#define GI_660X_HW_ARM_SEL_MASK (0x7 << 8) -#define GI_M_HW_ARM_SEL_MASK (0x1f << 8) -#define GI_660X_PRESCALE_X8 (1 << 12) -#define GI_M_PRESCALE_X8 (1 << 13) -#define GI_660X_ALT_SYNC (1 << 13) -#define GI_M_ALT_SYNC (1 << 14) -#define GI_660X_PRESCALE_X2 (1 << 14) -#define GI_M_PRESCALE_X2 (1 << 15) +#define GI_660X_HW_ARM_SEL_MASK GI_HW_ARM_SEL(0x7) +#define GI_M_HW_ARM_SEL_MASK GI_HW_ARM_SEL(0x1f) +#define GI_660X_PRESCALE_X8 BIT(12) +#define GI_M_PRESCALE_X8 BIT(13) +#define GI_660X_ALT_SYNC BIT(13) +#define GI_M_ALT_SYNC BIT(14) +#define GI_660X_PRESCALE_X2 BIT(14) +#define GI_M_PRESCALE_X2 BIT(15) #define NITIO_GATE2_REG(x) (NITIO_G0_GATE2 + (x)) -#define GI_GATE2_MODE (1 << 0) +#define GI_GATE2_MODE BIT(0) #define GI_BITS_TO_GATE2(x) (((x) >> 7) & 0x1f) #define GI_GATE2_SEL(x) (((x) & 0x1f) << 7) -#define GI_GATE2_SEL_MASK (0x1f << 7) -#define GI_GATE2_POL_INVERT (1 << 13) -#define GI_GATE2_SUBSEL (1 << 14) -#define GI_SRC_SUBSEL (1 << 15) +#define GI_GATE2_SEL_MASK GI_GATE2_SEL(0x1f) +#define GI_GATE2_POL_INVERT BIT(13) +#define GI_GATE2_SUBSEL BIT(14) +#define GI_SRC_SUBSEL BIT(15) #define NITIO_SHARED_STATUS_REG(x) (NITIO_G01_STATUS + ((x) / 2)) -#define GI_SAVE(x) (((x) % 2) ? (1 << 1) : (1 << 0)) -#define GI_COUNTING(x) (((x) % 2) ? (1 << 3) : (1 << 2)) -#define GI_NEXT_LOAD_SRC(x) (((x) % 2) ? (1 << 5) : (1 << 4)) -#define GI_STALE_DATA(x) (((x) % 2) ? (1 << 7) : (1 << 6)) -#define GI_ARMED(x) (((x) % 2) ? (1 << 9) : (1 << 8)) -#define GI_NO_LOAD_BETWEEN_GATES(x) (((x) % 2) ? (1 << 11) : (1 << 10)) -#define GI_TC_ERROR(x) (((x) % 2) ? (1 << 13) : (1 << 12)) -#define GI_GATE_ERROR(x) (((x) % 2) ? (1 << 15) : (1 << 14)) +#define GI_SAVE(x) (((x) % 2) ? BIT(1) : BIT(0)) +#define GI_COUNTING(x) (((x) % 2) ? BIT(3) : BIT(2)) +#define GI_NEXT_LOAD_SRC(x) (((x) % 2) ? BIT(5) : BIT(4)) +#define GI_STALE_DATA(x) (((x) % 2) ? BIT(7) : BIT(6)) +#define GI_ARMED(x) (((x) % 2) ? BIT(9) : BIT(8)) +#define GI_NO_LOAD_BETWEEN_GATES(x) (((x) % 2) ? BIT(11) : BIT(10)) +#define GI_TC_ERROR(x) (((x) % 2) ? BIT(13) : BIT(12)) +#define GI_GATE_ERROR(x) (((x) % 2) ? BIT(15) : BIT(14)) #define NITIO_RESET_REG(x) (NITIO_G01_RESET + ((x) / 2)) -#define GI_RESET(x) (1 << (2 + ((x) % 2))) +#define GI_RESET(x) BIT(2 + ((x) % 2)) #define NITIO_STATUS1_REG(x) (NITIO_G01_STATUS1 + ((x) / 2)) #define NITIO_STATUS2_REG(x) (NITIO_G01_STATUS2 + ((x) / 2)) -#define GI_OUTPUT(x) (((x) % 2) ? (1 << 1) : (1 << 0)) -#define GI_HW_SAVE(x) (((x) % 2) ? (1 << 13) : (1 << 12)) -#define GI_PERMANENT_STALE(x) (((x) % 2) ? (1 << 15) : (1 << 14)) +#define GI_OUTPUT(x) (((x) % 2) ? BIT(1) : BIT(0)) +#define GI_HW_SAVE(x) (((x) % 2) ? BIT(13) : BIT(12)) +#define GI_PERMANENT_STALE(x) (((x) % 2) ? BIT(15) : BIT(14)) #define NITIO_DMA_CFG_REG(x) (NITIO_G0_DMA_CFG + (x)) -#define GI_DMA_ENABLE (1 << 0) -#define GI_DMA_WRITE (1 << 1) -#define GI_DMA_INT_ENA (1 << 2) -#define GI_DMA_RESET (1 << 3) -#define GI_DMA_BANKSW_ERROR (1 << 4) +#define GI_DMA_ENABLE BIT(0) +#define GI_DMA_WRITE BIT(1) +#define GI_DMA_INT_ENA BIT(2) +#define GI_DMA_RESET BIT(3) +#define GI_DMA_BANKSW_ERROR BIT(4) #define NITIO_DMA_STATUS_REG(x) (NITIO_G0_DMA_STATUS + (x)) -#define GI_DMA_READBANK (1 << 13) -#define GI_DRQ_ERROR (1 << 14) -#define GI_DRQ_STATUS (1 << 15) +#define GI_DMA_READBANK BIT(13) +#define GI_DRQ_ERROR BIT(14) +#define GI_DRQ_STATUS BIT(15) #define NITIO_ABZ_REG(x) (NITIO_G0_ABZ + (x)) #define NITIO_INT_ACK_REG(x) (NITIO_G0_INT_ACK + (x)) -#define GI_GATE_ERROR_CONFIRM(x) (((x) % 2) ? (1 << 1) : (1 << 5)) -#define GI_TC_ERROR_CONFIRM(x) (((x) % 2) ? (1 << 2) : (1 << 6)) -#define GI_TC_INTERRUPT_ACK (1 << 14) -#define GI_GATE_INTERRUPT_ACK (1 << 15) +#define GI_GATE_ERROR_CONFIRM(x) (((x) % 2) ? BIT(1) : BIT(5)) +#define GI_TC_ERROR_CONFIRM(x) (((x) % 2) ? BIT(2) : BIT(6)) +#define GI_TC_INTERRUPT_ACK BIT(14) +#define GI_GATE_INTERRUPT_ACK BIT(15) #define NITIO_STATUS_REG(x) (NITIO_G0_STATUS + (x)) -#define GI_GATE_INTERRUPT (1 << 2) -#define GI_TC (1 << 3) -#define GI_INTERRUPT (1 << 15) +#define GI_GATE_INTERRUPT BIT(2) +#define GI_TC BIT(3) +#define GI_INTERRUPT BIT(15) #define NITIO_INT_ENA_REG(x) (NITIO_G0_INT_ENA + (x)) -#define GI_TC_INTERRUPT_ENABLE(x) (((x) % 2) ? (1 << 9) : (1 << 6)) -#define GI_GATE_INTERRUPT_ENABLE(x) (((x) % 2) ? (1 << 10) : (1 << 8)) +#define GI_TC_INTERRUPT_ENABLE(x) (((x) % 2) ? BIT(9) : BIT(6)) +#define GI_GATE_INTERRUPT_ENABLE(x) (((x) % 2) ? BIT(10) : BIT(8)) static inline void write_register(struct ni_gpct *counter, unsigned bits, enum ni_gpct_register reg) -- cgit v0.10.2 From f79f218ec2aa2ac761e426f54419f8d27aa46d53 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:38 -0700 Subject: staging: comedi: ni_tio_internal.h: fix block comment issues Fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h index c51e01e..b659f05 100644 --- a/drivers/staging/comedi/drivers/ni_tio_internal.h +++ b/drivers/staging/comedi/drivers/ni_tio_internal.h @@ -1,20 +1,19 @@ /* - drivers/ni_tio_internal.h - Header file for NI general purpose counter support code (ni_tio.c and - ni_tiocmd.c) - - COMEDI - Linux Control and Measurement Device Interface - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * Header file for NI general purpose counter support code (ni_tio.c and + * ni_tiocmd.c) + * + * COMEDI - Linux Control and Measurement Device Interface + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ #ifndef _COMEDI_NI_TIO_INTERNAL_H #define _COMEDI_NI_TIO_INTERNAL_H @@ -212,7 +211,8 @@ static inline void ni_tio_set_bits_transient(struct ni_gpct *counter, spin_unlock_irqrestore(&counter_dev->regs_lock, flags); } -/* ni_tio_set_bits( ) is for safely writing to registers whose bits may be +/* + * ni_tio_set_bits( ) is for safely writing to registers whose bits may be * twiddled in interrupt context, or whose software copy may be read in * interrupt context. */ @@ -224,10 +224,11 @@ static inline void ni_tio_set_bits(struct ni_gpct *counter, 0x0); } -/* ni_tio_get_soft_copy( ) is for safely reading the software copy of a register -whose bits might be modified in interrupt context, or whose software copy -might need to be read in interrupt context. -*/ +/* + * ni_tio_get_soft_copy( ) is for safely reading the software copy of a + * register whose bits might be modified in interrupt context, or whose + * software copy might need to be read in interrupt context. + */ static inline unsigned ni_tio_get_soft_copy(const struct ni_gpct *counter, enum ni_gpct_register register_index) -- cgit v0.10.2 From a4915d543f5bbb775a5fa6d012d33606ba22389b Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:39 -0700 Subject: staging: comedi: ni_tio: fix ni_tio_set_gate_src() params/vars As suggested by checkpatch.pl: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 623fc6c..abbc8b7 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -891,16 +891,16 @@ static int ni_m_set_gate2(struct ni_gpct *counter, unsigned int gate_source) return 0; } -int ni_tio_set_gate_src(struct ni_gpct *counter, unsigned gate_index, - unsigned int gate_source) +int ni_tio_set_gate_src(struct ni_gpct *counter, + unsigned int gate, unsigned int src) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; - unsigned int chan = CR_CHAN(gate_source); - unsigned gate2_reg = NITIO_GATE2_REG(cidx); - unsigned mode = 0; + unsigned int cidx = counter->counter_index; + unsigned int chan = CR_CHAN(src); + unsigned int gate2_reg = NITIO_GATE2_REG(cidx); + unsigned int mode = 0; - switch (gate_index) { + switch (gate) { case 0: if (chan == NI_GPCT_DISABLED_GATE_SELECT) { ni_tio_set_bits(counter, NITIO_MODE_REG(cidx), @@ -908,9 +908,9 @@ int ni_tio_set_gate_src(struct ni_gpct *counter, unsigned gate_index, GI_GATING_DISABLED); return 0; } - if (gate_source & CR_INVERT) + if (src & CR_INVERT) mode |= GI_GATE_POL_INVERT; - if (gate_source & CR_EDGE) + if (src & CR_EDGE) mode |= GI_RISING_EDGE_GATING; else mode |= GI_LEVEL_GATING; @@ -921,9 +921,9 @@ int ni_tio_set_gate_src(struct ni_gpct *counter, unsigned gate_index, case ni_gpct_variant_e_series: case ni_gpct_variant_m_series: default: - return ni_m_set_gate(counter, gate_source); + return ni_m_set_gate(counter, src); case ni_gpct_variant_660x: - return ni_660x_set_gate(counter, gate_source); + return ni_660x_set_gate(counter, src); } break; case 1: @@ -936,15 +936,15 @@ int ni_tio_set_gate_src(struct ni_gpct *counter, unsigned gate_index, gate2_reg); return 0; } - if (gate_source & CR_INVERT) + if (src & CR_INVERT) counter_dev->regs[gate2_reg] |= GI_GATE2_POL_INVERT; else counter_dev->regs[gate2_reg] &= ~GI_GATE2_POL_INVERT; switch (counter_dev->variant) { case ni_gpct_variant_m_series: - return ni_m_set_gate2(counter, gate_source); + return ni_m_set_gate2(counter, src); case ni_gpct_variant_660x: - return ni_660x_set_gate2(counter, gate_source); + return ni_660x_set_gate2(counter, src); default: BUG(); break; diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h index b659f05..ee02b36 100644 --- a/drivers/staging/comedi/drivers/ni_tio_internal.h +++ b/drivers/staging/comedi/drivers/ni_tio_internal.h @@ -245,7 +245,6 @@ static inline unsigned ni_tio_get_soft_copy(const struct ni_gpct *counter, } int ni_tio_arm(struct ni_gpct *counter, int arm, unsigned start_trigger); -int ni_tio_set_gate_src(struct ni_gpct *counter, unsigned gate_index, - unsigned int gate_source); +int ni_tio_set_gate_src(struct ni_gpct *, unsigned int gate, unsigned int src); #endif /* _COMEDI_NI_TIO_INTERNAL_H */ -- cgit v0.10.2 From c9813d50a514b451c4ad3acf1f5a400fff005c70 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:40 -0700 Subject: staging: comedi: ni_tio: fix ni_tio_arm() params/vars As suggested by checkpatch.pl: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' The 'arm' parameter is really a true/false flag. For aesthetics, change it to a bool. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index abbc8b7..35596b1 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -484,11 +484,11 @@ static int ni_tio_set_counter_mode(struct ni_gpct *counter, unsigned mode) return 0; } -int ni_tio_arm(struct ni_gpct *counter, int arm, unsigned start_trigger) +int ni_tio_arm(struct ni_gpct *counter, bool arm, unsigned int start_trigger) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; - unsigned command_transient_bits = 0; + unsigned int cidx = counter->counter_index; + unsigned int command_transient_bits = 0; if (arm) { switch (start_trigger) { @@ -502,8 +502,8 @@ int ni_tio_arm(struct ni_gpct *counter, int arm, unsigned start_trigger) break; } if (ni_tio_counting_mode_registers_present(counter_dev)) { - unsigned bits = 0; - unsigned sel_mask; + unsigned int bits = 0; + unsigned int sel_mask; sel_mask = GI_HW_ARM_SEL_MASK(counter_dev->variant); @@ -1180,9 +1180,9 @@ int ni_tio_insn_config(struct comedi_device *dev, case INSN_CONFIG_SET_COUNTER_MODE: return ni_tio_set_counter_mode(counter, data[1]); case INSN_CONFIG_ARM: - return ni_tio_arm(counter, 1, data[1]); + return ni_tio_arm(counter, true, data[1]); case INSN_CONFIG_DISARM: - ni_tio_arm(counter, 0, 0); + ni_tio_arm(counter, false, 0); return 0; case INSN_CONFIG_GET_COUNTER_STATUS: data[1] = 0; diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h index ee02b36..1e91633 100644 --- a/drivers/staging/comedi/drivers/ni_tio_internal.h +++ b/drivers/staging/comedi/drivers/ni_tio_internal.h @@ -244,7 +244,7 @@ static inline unsigned ni_tio_get_soft_copy(const struct ni_gpct *counter, return value; } -int ni_tio_arm(struct ni_gpct *counter, int arm, unsigned start_trigger); +int ni_tio_arm(struct ni_gpct *, bool arm, unsigned int start_trigger); int ni_tio_set_gate_src(struct ni_gpct *, unsigned int gate, unsigned int src); #endif /* _COMEDI_NI_TIO_INTERNAL_H */ diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index 823e479..0546a55 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -103,7 +103,7 @@ static int ni_tio_input_inttrig(struct comedi_device *dev, spin_unlock_irqrestore(&counter->lock, flags); if (ret < 0) return ret; - ret = ni_tio_arm(counter, 1, NI_GPCT_ARM_IMMEDIATE); + ret = ni_tio_arm(counter, true, NI_GPCT_ARM_IMMEDIATE); s->async->inttrig = NULL; return ret; @@ -143,9 +143,9 @@ static int ni_tio_input_cmd(struct comedi_subdevice *s) mite_dma_arm(counter->mite_chan); if (cmd->start_src == TRIG_NOW) - ret = ni_tio_arm(counter, 1, NI_GPCT_ARM_IMMEDIATE); + ret = ni_tio_arm(counter, true, NI_GPCT_ARM_IMMEDIATE); else if (cmd->start_src == TRIG_EXT) - ret = ni_tio_arm(counter, 1, cmd->start_arg); + ret = ni_tio_arm(counter, true, cmd->start_arg); } return ret; } @@ -292,7 +292,7 @@ int ni_tio_cancel(struct ni_gpct *counter) unsigned cidx = counter->counter_index; unsigned long flags; - ni_tio_arm(counter, 0, 0); + ni_tio_arm(counter, false, 0); spin_lock_irqsave(&counter->lock, flags); if (counter->mite_chan) mite_dma_disarm(counter->mite_chan); -- cgit v0.10.2 From 85bfafa81f8e422503d31d48ae2658675aad1929 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:41 -0700 Subject: staging: comedi: ni_tio: export and fix ni_tio_get_soft_copy() Move the inline function from the header and export it instead. For the checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' CHECK: Avoid crashing the kernel - try using WARN_ON & recovery code rather than BUG() or BUG_ON() The 'unsigned' vars can safely be changed to 'unsigned int'. The BUG_ON() is overkill. All the drivers that call this function pass 'register_index' values that are valid. Just check the 'register_index' and return 0 if it's not valid. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 35596b1..abbdad5 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -228,6 +228,31 @@ static uint64_t ni_tio_clock_period_ps(const struct ni_gpct *counter, return clock_period_ps; } +/** + * ni_tio_get_soft_copy() - Safely read the software copy of a counter register. + * @counter: struct ni_gpct counter. + * @reg: the register to read. + * + * Used to get the software copy of a register whose bits might be modified + * in interrupt context, or whose software copy might need to be read in + * interrupt context. + */ +unsigned int ni_tio_get_soft_copy(const struct ni_gpct *counter, + enum ni_gpct_register reg) +{ + struct ni_gpct_device *counter_dev = counter->counter_dev; + unsigned int value = 0; + unsigned long flags; + + if (reg < NITIO_NUM_REGS) { + spin_lock_irqsave(&counter_dev->regs_lock, flags); + value = counter_dev->regs[reg]; + spin_unlock_irqrestore(&counter_dev->regs_lock, flags); + } + return value; +} +EXPORT_SYMBOL_GPL(ni_tio_get_soft_copy); + static unsigned ni_tio_clock_src_modifiers(const struct ni_gpct *counter) { struct ni_gpct_device *counter_dev = counter->counter_dev; diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h index 1e91633..8c90276 100644 --- a/drivers/staging/comedi/drivers/ni_tio_internal.h +++ b/drivers/staging/comedi/drivers/ni_tio_internal.h @@ -224,25 +224,8 @@ static inline void ni_tio_set_bits(struct ni_gpct *counter, 0x0); } -/* - * ni_tio_get_soft_copy( ) is for safely reading the software copy of a - * register whose bits might be modified in interrupt context, or whose - * software copy might need to be read in interrupt context. - */ -static inline unsigned ni_tio_get_soft_copy(const struct ni_gpct *counter, - enum ni_gpct_register - register_index) -{ - struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned long flags; - unsigned value; - - BUG_ON(register_index >= NITIO_NUM_REGS); - spin_lock_irqsave(&counter_dev->regs_lock, flags); - value = counter_dev->regs[register_index]; - spin_unlock_irqrestore(&counter_dev->regs_lock, flags); - return value; -} +unsigned int ni_tio_get_soft_copy(const struct ni_gpct *, + enum ni_gpct_register reg); int ni_tio_arm(struct ni_gpct *, bool arm, unsigned int start_trigger); int ni_tio_set_gate_src(struct ni_gpct *, unsigned int gate, unsigned int src); -- cgit v0.10.2 From f4e0331f3050f051ad0e8818635fc157cf354713 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:42 -0700 Subject: staging: comedi: ni_tio: export and fix ni_tio_set_bits() Move the inline function from the header and export it instead. Fix the checkpatch.pl issue: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' The 'unsigned' vars can safely be changed to 'unsigned int'. This allows moving ni_tio_set_bits_transient() into the driver and making it static. Fix the checkpatch.pl issue: CHECK: Avoid crashing the kernel - try using WARN_ON & recovery code rather than BUG() or BUG_ON() The BUG_ON() is overkill. All the drivers that call this function pass 'register_index' values that are valid. Just check the 'register_index' before updating the software copy and writing the register. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index abbdad5..5343fce 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -228,6 +228,43 @@ static uint64_t ni_tio_clock_period_ps(const struct ni_gpct *counter, return clock_period_ps; } +static void ni_tio_set_bits_transient(struct ni_gpct *counter, + enum ni_gpct_register reg, + unsigned int mask, unsigned int value, + unsigned int transient) +{ + struct ni_gpct_device *counter_dev = counter->counter_dev; + unsigned long flags; + + if (reg < NITIO_NUM_REGS) { + spin_lock_irqsave(&counter_dev->regs_lock, flags); + counter_dev->regs[reg] &= ~mask; + counter_dev->regs[reg] |= (value & mask); + write_register(counter, counter_dev->regs[reg] | transient, + reg); + mmiowb(); + spin_unlock_irqrestore(&counter_dev->regs_lock, flags); + } +} + +/** + * ni_tio_set_bits() - Safely write a counter register. + * @counter: struct ni_gpct counter. + * @reg: the register to write. + * @mask: the bits to change. + * @value: the new bits value. + * + * Used to write to, and update the software copy, a register whose bits may + * be twiddled in interrupt context, or whose software copy may be read in + * interrupt context. + */ +void ni_tio_set_bits(struct ni_gpct *counter, enum ni_gpct_register reg, + unsigned int mask, unsigned int value) +{ + ni_tio_set_bits_transient(counter, reg, mask, value, 0x0); +} +EXPORT_SYMBOL_GPL(ni_tio_set_bits); + /** * ni_tio_get_soft_copy() - Safely read the software copy of a counter register. * @counter: struct ni_gpct counter. diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h index 8c90276..c8ad66a 100644 --- a/drivers/staging/comedi/drivers/ni_tio_internal.h +++ b/drivers/staging/comedi/drivers/ni_tio_internal.h @@ -191,39 +191,8 @@ static inline int ni_tio_counting_mode_registers_present(const struct return 0; } -static inline void ni_tio_set_bits_transient(struct ni_gpct *counter, - enum ni_gpct_register - register_index, unsigned bit_mask, - unsigned bit_values, - unsigned transient_bit_values) -{ - struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned long flags; - - BUG_ON(register_index >= NITIO_NUM_REGS); - spin_lock_irqsave(&counter_dev->regs_lock, flags); - counter_dev->regs[register_index] &= ~bit_mask; - counter_dev->regs[register_index] |= (bit_values & bit_mask); - write_register(counter, - counter_dev->regs[register_index] | transient_bit_values, - register_index); - mmiowb(); - spin_unlock_irqrestore(&counter_dev->regs_lock, flags); -} - -/* - * ni_tio_set_bits( ) is for safely writing to registers whose bits may be - * twiddled in interrupt context, or whose software copy may be read in - * interrupt context. - */ -static inline void ni_tio_set_bits(struct ni_gpct *counter, - enum ni_gpct_register register_index, - unsigned bit_mask, unsigned bit_values) -{ - ni_tio_set_bits_transient(counter, register_index, bit_mask, bit_values, - 0x0); -} - +void ni_tio_set_bits(struct ni_gpct *, enum ni_gpct_register reg, + unsigned int mask, unsigned int value); unsigned int ni_tio_get_soft_copy(const struct ni_gpct *, enum ni_gpct_register reg); -- cgit v0.10.2 From 73b2d13607f075ff27abbf75d57320a8b9f82461 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:43 -0700 Subject: staging: comedi: ni_tio_internal: simplify ni_tio_counting_mode_registers_present() Only the e series gpct variant does not have counting mode registers. Simplfy this function. For aesthetics, return bool instead of int. This fixes the checkpatch.pl issues: CHECK: spaces preferred around that '*' (ctx:ExV) CHECK: Avoid crashing the kernel - try using WARN_ON & recovery code rather than BUG() or BUG_ON() Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 5343fce..44dea4c 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -451,7 +451,7 @@ static void ni_tio_set_sync_mode(struct ni_gpct *counter, int force_alt_sync) unsigned mode; uint64_t clock_period_ps; - if (ni_tio_counting_mode_registers_present(counter_dev) == 0) + if (!ni_tio_counting_mode_registers_present(counter_dev)) return; mode = ni_tio_get_soft_copy(counter, counting_mode_reg); diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h index c8ad66a..1e795fd 100644 --- a/drivers/staging/comedi/drivers/ni_tio_internal.h +++ b/drivers/staging/comedi/drivers/ni_tio_internal.h @@ -174,21 +174,11 @@ static inline unsigned read_register(struct ni_gpct *counter, return counter->counter_dev->read_register(counter, reg); } -static inline int ni_tio_counting_mode_registers_present(const struct - ni_gpct_device - *counter_dev) +static inline bool +ni_tio_counting_mode_registers_present(const struct ni_gpct_device *counter_dev) { - switch (counter_dev->variant) { - case ni_gpct_variant_e_series: - return 0; - case ni_gpct_variant_m_series: - case ni_gpct_variant_660x: - return 1; - default: - BUG(); - break; - } - return 0; + /* m series and 660x variants have counting mode registers */ + return counter_dev->variant != ni_gpct_variant_e_series; } void ni_tio_set_bits(struct ni_gpct *, enum ni_gpct_register reg, -- cgit v0.10.2 From 51f2e4eb2882209c84c2546b5a9b5c638b850f95 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:44 -0700 Subject: staging: comedi: ni_tio_internal: export {read, write)_register() Move these inline functions out of the header and export them instead. These functions have pretty generic names, rename them. Fix the checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' CHECK: Avoid crashing the kernel - try using WARN_ON & recovery code rather than BUG() or BUG_ON() Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 44dea4c..a225279 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -179,11 +179,38 @@ static bool ni_tio_has_gate2_registers(const struct ni_gpct_device *counter_dev) } } +/** + * ni_tio_write() - Write a TIO register using the driver provided callback. + * @counter: struct ni_gpct counter. + * @value: the value to write + * @reg: the register to write. + */ +void ni_tio_write(struct ni_gpct *counter, unsigned int value, + enum ni_gpct_register reg) +{ + if (reg < NITIO_NUM_REGS) + counter->counter_dev->write_register(counter, value, reg); +} +EXPORT_SYMBOL_GPL(ni_tio_write); + +/** + * ni_tio_read() - Read a TIO register using the driver provided callback. + * @counter: struct ni_gpct counter. + * @reg: the register to read. + */ +unsigned int ni_tio_read(struct ni_gpct *counter, enum ni_gpct_register reg) +{ + if (reg < NITIO_NUM_REGS) + return counter->counter_dev->read_register(counter, reg); + return 0; +} +EXPORT_SYMBOL_GPL(ni_tio_read); + static void ni_tio_reset_count_and_disarm(struct ni_gpct *counter) { unsigned cidx = counter->counter_index; - write_register(counter, GI_RESET(cidx), NITIO_RESET_REG(cidx)); + ni_tio_write(counter, GI_RESET(cidx), NITIO_RESET_REG(cidx)); } static uint64_t ni_tio_clock_period_ps(const struct ni_gpct *counter, @@ -240,8 +267,7 @@ static void ni_tio_set_bits_transient(struct ni_gpct *counter, spin_lock_irqsave(&counter_dev->regs_lock, flags); counter_dev->regs[reg] &= ~mask; counter_dev->regs[reg] |= (value & mask); - write_register(counter, counter_dev->regs[reg] | transient, - reg); + ni_tio_write(counter, counter_dev->regs[reg] | transient, reg); mmiowb(); spin_unlock_irqrestore(&counter_dev->regs_lock, flags); } @@ -736,8 +762,8 @@ static void ni_tio_set_source_subselect(struct ni_gpct *counter, default: return; } - write_register(counter, counter_dev->regs[second_gate_reg], - second_gate_reg); + ni_tio_write(counter, counter_dev->regs[second_gate_reg], + second_gate_reg); } static int ni_tio_set_clock_src(struct ni_gpct *counter, @@ -925,7 +951,7 @@ static int ni_660x_set_gate2(struct ni_gpct *counter, unsigned int gate_source) counter_dev->regs[gate2_reg] |= GI_GATE2_MODE; counter_dev->regs[gate2_reg] &= ~GI_GATE2_SEL_MASK; counter_dev->regs[gate2_reg] |= GI_GATE2_SEL(gate2_sel); - write_register(counter, counter_dev->regs[gate2_reg], gate2_reg); + ni_tio_write(counter, counter_dev->regs[gate2_reg], gate2_reg); return 0; } @@ -949,7 +975,7 @@ static int ni_m_set_gate2(struct ni_gpct *counter, unsigned int gate_source) counter_dev->regs[gate2_reg] |= GI_GATE2_MODE; counter_dev->regs[gate2_reg] &= ~GI_GATE2_SEL_MASK; counter_dev->regs[gate2_reg] |= GI_GATE2_SEL(gate2_sel); - write_register(counter, counter_dev->regs[gate2_reg], gate2_reg); + ni_tio_write(counter, counter_dev->regs[gate2_reg], gate2_reg); return 0; } @@ -994,8 +1020,8 @@ int ni_tio_set_gate_src(struct ni_gpct *counter, if (chan == NI_GPCT_DISABLED_GATE_SELECT) { counter_dev->regs[gate2_reg] &= ~GI_GATE2_MODE; - write_register(counter, counter_dev->regs[gate2_reg], - gate2_reg); + ni_tio_write(counter, counter_dev->regs[gate2_reg], + gate2_reg); return 0; } if (src & CR_INVERT) @@ -1049,7 +1075,7 @@ static int ni_tio_set_other_src(struct ni_gpct *counter, unsigned index, counter_dev->regs[abz_reg] &= ~mask; counter_dev->regs[abz_reg] |= (source << shift) & mask; - write_register(counter, counter_dev->regs[abz_reg], abz_reg); + ni_tio_write(counter, counter_dev->regs[abz_reg], abz_reg); return 0; } @@ -1248,7 +1274,7 @@ int ni_tio_insn_config(struct comedi_device *dev, return 0; case INSN_CONFIG_GET_COUNTER_STATUS: data[1] = 0; - status = read_register(counter, NITIO_SHARED_STATUS_REG(cidx)); + status = ni_tio_read(counter, NITIO_SHARED_STATUS_REG(cidx)); if (status & GI_ARMED(cidx)) { data[1] |= COMEDI_COUNTER_ARMED; if (status & GI_COUNTING(cidx)) @@ -1297,9 +1323,9 @@ static unsigned int ni_tio_read_sw_save_reg(struct comedi_device *dev, * will be correct since the count value will definitely have latched * by then. */ - val = read_register(counter, NITIO_SW_SAVE_REG(cidx)); - if (val != read_register(counter, NITIO_SW_SAVE_REG(cidx))) - val = read_register(counter, NITIO_SW_SAVE_REG(cidx)); + val = ni_tio_read(counter, NITIO_SW_SAVE_REG(cidx)); + if (val != ni_tio_read(counter, NITIO_SW_SAVE_REG(cidx))) + val = ni_tio_read(counter, NITIO_SW_SAVE_REG(cidx)); return val; } @@ -1336,7 +1362,7 @@ static unsigned ni_tio_next_load_register(struct ni_gpct *counter) { unsigned cidx = counter->counter_index; const unsigned bits = - read_register(counter, NITIO_SHARED_STATUS_REG(cidx)); + ni_tio_read(counter, NITIO_SHARED_STATUS_REG(cidx)); return (bits & GI_NEXT_LOAD_SRC(cidx)) ? NITIO_LOADB_REG(cidx) @@ -1368,19 +1394,19 @@ int ni_tio_insn_write(struct comedi_device *dev, * load register is already selected. */ load_reg = ni_tio_next_load_register(counter); - write_register(counter, data[0], load_reg); + ni_tio_write(counter, data[0], load_reg); ni_tio_set_bits_transient(counter, NITIO_CMD_REG(cidx), 0, 0, GI_LOAD); /* restore load reg */ - write_register(counter, counter_dev->regs[load_reg], load_reg); + ni_tio_write(counter, counter_dev->regs[load_reg], load_reg); break; case 1: counter_dev->regs[NITIO_LOADA_REG(cidx)] = data[0]; - write_register(counter, data[0], NITIO_LOADA_REG(cidx)); + ni_tio_write(counter, data[0], NITIO_LOADA_REG(cidx)); break; case 2: counter_dev->regs[NITIO_LOADB_REG(cidx)] = data[0]; - write_register(counter, data[0], NITIO_LOADB_REG(cidx)); + ni_tio_write(counter, data[0], NITIO_LOADB_REG(cidx)); break; default: return -EINVAL; @@ -1398,7 +1424,7 @@ void ni_tio_init_counter(struct ni_gpct *counter) /* initialize counter registers */ counter_dev->regs[NITIO_AUTO_INC_REG(cidx)] = 0x0; - write_register(counter, 0x0, NITIO_AUTO_INC_REG(cidx)); + ni_tio_write(counter, 0x0, NITIO_AUTO_INC_REG(cidx)); ni_tio_set_bits(counter, NITIO_CMD_REG(cidx), ~0, GI_SYNC_GATE); @@ -1406,10 +1432,10 @@ void ni_tio_init_counter(struct ni_gpct *counter) ni_tio_set_bits(counter, NITIO_MODE_REG(cidx), ~0, 0); counter_dev->regs[NITIO_LOADA_REG(cidx)] = 0x0; - write_register(counter, 0x0, NITIO_LOADA_REG(cidx)); + ni_tio_write(counter, 0x0, NITIO_LOADA_REG(cidx)); counter_dev->regs[NITIO_LOADB_REG(cidx)] = 0x0; - write_register(counter, 0x0, NITIO_LOADB_REG(cidx)); + ni_tio_write(counter, 0x0, NITIO_LOADB_REG(cidx)); ni_tio_set_bits(counter, NITIO_INPUT_SEL_REG(cidx), ~0, 0); @@ -1418,7 +1444,7 @@ void ni_tio_init_counter(struct ni_gpct *counter) if (ni_tio_has_gate2_registers(counter_dev)) { counter_dev->regs[NITIO_GATE2_REG(cidx)] = 0x0; - write_register(counter, 0x0, NITIO_GATE2_REG(cidx)); + ni_tio_write(counter, 0x0, NITIO_GATE2_REG(cidx)); } ni_tio_set_bits(counter, NITIO_DMA_CFG_REG(cidx), ~0, 0x0); diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h index 1e795fd..b15b108 100644 --- a/drivers/staging/comedi/drivers/ni_tio_internal.h +++ b/drivers/staging/comedi/drivers/ni_tio_internal.h @@ -160,19 +160,8 @@ #define GI_TC_INTERRUPT_ENABLE(x) (((x) % 2) ? BIT(9) : BIT(6)) #define GI_GATE_INTERRUPT_ENABLE(x) (((x) % 2) ? BIT(10) : BIT(8)) -static inline void write_register(struct ni_gpct *counter, unsigned bits, - enum ni_gpct_register reg) -{ - BUG_ON(reg >= NITIO_NUM_REGS); - counter->counter_dev->write_register(counter, bits, reg); -} - -static inline unsigned read_register(struct ni_gpct *counter, - enum ni_gpct_register reg) -{ - BUG_ON(reg >= NITIO_NUM_REGS); - return counter->counter_dev->read_register(counter, reg); -} +void ni_tio_write(struct ni_gpct *, unsigned int value, enum ni_gpct_register); +unsigned int ni_tio_read(struct ni_gpct *, enum ni_gpct_register); static inline bool ni_tio_counting_mode_registers_present(const struct ni_gpct_device *counter_dev) diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index 0546a55..d5ffbb1 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -342,9 +342,9 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, int *stale_data) { unsigned cidx = counter->counter_index; - const unsigned short gxx_status = read_register(counter, + const unsigned short gxx_status = ni_tio_read(counter, NITIO_SHARED_STATUS_REG(cidx)); - const unsigned short gi_status = read_register(counter, + const unsigned short gi_status = ni_tio_read(counter, NITIO_STATUS_REG(cidx)); unsigned ack = 0; @@ -380,14 +380,14 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, ack |= GI_GATE_INTERRUPT_ACK; } if (ack) - write_register(counter, ack, NITIO_INT_ACK_REG(cidx)); + ni_tio_write(counter, ack, NITIO_INT_ACK_REG(cidx)); if (ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)) & GI_LOADING_ON_GATE) { if (gxx_status & GI_STALE_DATA(cidx)) { if (stale_data) *stale_data = 1; } - if (read_register(counter, NITIO_STATUS2_REG(cidx)) & + if (ni_tio_read(counter, NITIO_STATUS2_REG(cidx)) & GI_PERMANENT_STALE(cidx)) { dev_info(counter->counter_dev->dev->class_dev, "%s: Gi_Permanent_Stale_Data detected.\n", @@ -426,7 +426,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, switch (counter->counter_dev->variant) { case ni_gpct_variant_m_series: case ni_gpct_variant_660x: - if (read_register(counter, NITIO_DMA_STATUS_REG(cidx)) & + if (ni_tio_read(counter, NITIO_DMA_STATUS_REG(cidx)) & GI_DRQ_ERROR) { dev_notice(counter->counter_dev->dev->class_dev, "%s: Gi_DRQ_Error detected.\n", __func__); -- cgit v0.10.2 From 5994e51b20600accd55e9aaeeb0b78e5ca038e19 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:45 -0700 Subject: staging: comedi: ni_tio: tidy up struct ni_gpct_device (*{write, read}_register) For aesthetics, rename these callbacks to simply read/write. Change the 'unsigned' parameters to 'unsigned int'. This fixes a number of checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index a225279..28bec3c 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -189,7 +189,7 @@ void ni_tio_write(struct ni_gpct *counter, unsigned int value, enum ni_gpct_register reg) { if (reg < NITIO_NUM_REGS) - counter->counter_dev->write_register(counter, value, reg); + counter->counter_dev->write(counter, value, reg); } EXPORT_SYMBOL_GPL(ni_tio_write); @@ -201,7 +201,7 @@ EXPORT_SYMBOL_GPL(ni_tio_write); unsigned int ni_tio_read(struct ni_gpct *counter, enum ni_gpct_register reg) { if (reg < NITIO_NUM_REGS) - return counter->counter_dev->read_register(counter, reg); + return counter->counter_dev->read(counter, reg); return 0; } EXPORT_SYMBOL_GPL(ni_tio_read); @@ -1455,17 +1455,17 @@ EXPORT_SYMBOL_GPL(ni_tio_init_counter); struct ni_gpct_device * ni_gpct_device_construct(struct comedi_device *dev, - void (*write_register)(struct ni_gpct *counter, - unsigned bits, - enum ni_gpct_register reg), - unsigned (*read_register)(struct ni_gpct *counter, - enum ni_gpct_register reg), + void (*write)(struct ni_gpct *counter, + unsigned int value, + enum ni_gpct_register reg), + unsigned int (*read)(struct ni_gpct *counter, + enum ni_gpct_register reg), enum ni_gpct_variant variant, - unsigned num_counters) + unsigned int num_counters) { struct ni_gpct_device *counter_dev; struct ni_gpct *counter; - unsigned i; + unsigned int i; if (num_counters == 0) return NULL; @@ -1475,8 +1475,8 @@ ni_gpct_device_construct(struct comedi_device *dev, return NULL; counter_dev->dev = dev; - counter_dev->write_register = write_register; - counter_dev->read_register = read_register; + counter_dev->write = write; + counter_dev->read = read; counter_dev->variant = variant; spin_lock_init(&counter_dev->regs_lock); diff --git a/drivers/staging/comedi/drivers/ni_tio.h b/drivers/staging/comedi/drivers/ni_tio.h index 25aedd0..63cec3e 100644 --- a/drivers/staging/comedi/drivers/ni_tio.h +++ b/drivers/staging/comedi/drivers/ni_tio.h @@ -115,10 +115,9 @@ struct ni_gpct { struct ni_gpct_device { struct comedi_device *dev; - void (*write_register)(struct ni_gpct *counter, unsigned bits, - enum ni_gpct_register reg); - unsigned (*read_register)(struct ni_gpct *counter, - enum ni_gpct_register reg); + void (*write)(struct ni_gpct *, unsigned int value, + enum ni_gpct_register); + unsigned int (*read)(struct ni_gpct *, enum ni_gpct_register); enum ni_gpct_variant variant; struct ni_gpct *counters; unsigned num_counters; @@ -128,13 +127,13 @@ struct ni_gpct_device { struct ni_gpct_device * ni_gpct_device_construct(struct comedi_device *, - void (*write_register)(struct ni_gpct *, - unsigned bits, - enum ni_gpct_register), - unsigned (*read_register)(struct ni_gpct *, - enum ni_gpct_register), + void (*write)(struct ni_gpct *, + unsigned int value, + enum ni_gpct_register), + unsigned int (*read)(struct ni_gpct *, + enum ni_gpct_register), enum ni_gpct_variant, - unsigned num_counters); + unsigned int num_counters); void ni_gpct_device_destroy(struct ni_gpct_device *); void ni_tio_init_counter(struct ni_gpct *); int ni_tio_insn_read(struct comedi_device *, struct comedi_subdevice *, -- cgit v0.10.2 From a38a1408868c6f476f8f41881b7d7757e24f61c2 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:46 -0700 Subject: staging: comedi: ni_tio.h: tidy up struct ni_gpct_device Fix the checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' CHECK: spinlock_t definition without comment Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.h b/drivers/staging/comedi/drivers/ni_tio.h index 63cec3e..2f36dc1 100644 --- a/drivers/staging/comedi/drivers/ni_tio.h +++ b/drivers/staging/comedi/drivers/ni_tio.h @@ -120,9 +120,9 @@ struct ni_gpct_device { unsigned int (*read)(struct ni_gpct *, enum ni_gpct_register); enum ni_gpct_variant variant; struct ni_gpct *counters; - unsigned num_counters; - unsigned regs[NITIO_NUM_REGS]; - spinlock_t regs_lock; + unsigned int num_counters; + unsigned int regs[NITIO_NUM_REGS]; + spinlock_t regs_lock; /* protects 'regs' */ }; struct ni_gpct_device * -- cgit v0.10.2 From 10142ced7dc10261b7ff3598dedb3f6c4cb64e6d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:47 -0700 Subject: staging: comedi: ni_tio.h: tidy up struct ni_gpct Fix the checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' CHECK: Prefer kernel type 'u64' over 'uint64_t' CHECK: spinlock_t definition without comment Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.h b/drivers/staging/comedi/drivers/ni_tio.h index 2f36dc1..5d03743 100644 --- a/drivers/staging/comedi/drivers/ni_tio.h +++ b/drivers/staging/comedi/drivers/ni_tio.h @@ -106,11 +106,11 @@ enum ni_gpct_variant { struct ni_gpct { struct ni_gpct_device *counter_dev; - unsigned counter_index; - unsigned chip_index; - uint64_t clock_period_ps; /* clock period in picoseconds */ + unsigned int counter_index; + unsigned int chip_index; + u64 clock_period_ps; /* clock period in picoseconds */ struct mite_channel *mite_chan; - spinlock_t lock; + spinlock_t lock; /* protects 'mite_chan' */ }; struct ni_gpct_device { -- cgit v0.10.2 From 80168e9e583717b061cc144a06fc35dca2cc2e26 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:48 -0700 Subject: staging: comedi: ni_tio.h: fix block comment Fix the checkpatch.pl issue: WARNING: Block comments use * on subsequent lines Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.h b/drivers/staging/comedi/drivers/ni_tio.h index 5d03743..7ddafdd 100644 --- a/drivers/staging/comedi/drivers/ni_tio.h +++ b/drivers/staging/comedi/drivers/ni_tio.h @@ -1,19 +1,18 @@ /* - drivers/ni_tio.h - Header file for NI general purpose counter support code (ni_tio.c) - - COMEDI - Linux Control and Measurement Device Interface - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * Header file for NI general purpose counter support code (ni_tio.c) + * + * COMEDI - Linux Control and Measurement Device Interface + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ #ifndef _COMEDI_NI_TIO_H #define _COMEDI_NI_TIO_H -- cgit v0.10.2 From 58011fdebb21a746ce43c8ada363a65c55200d74 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:49 -0700 Subject: staging: comedi: ni_tio.h: remove unnecessary forward declarations These struct forward declarations are not needed. Remove them. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.h b/drivers/staging/comedi/drivers/ni_tio.h index 7ddafdd..4978358 100644 --- a/drivers/staging/comedi/drivers/ni_tio.h +++ b/drivers/staging/comedi/drivers/ni_tio.h @@ -19,10 +19,6 @@ #include "../comedidev.h" -/* forward declarations */ -struct mite_struct; -struct ni_gpct_device; - enum ni_gpct_register { NITIO_G0_AUTO_INC, NITIO_G1_AUTO_INC, -- cgit v0.10.2 From 74ea93be6ce16f01e9e73a4ad5abeb984b0b02fc Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:50 -0700 Subject: staging: comedi: ni_tio: Prefer 'unsigned int' to bare use of 'unsigned' Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 28bec3c..ecf8527 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -115,7 +115,7 @@ TODO: #define NI_660X_LOGIC_LOW_GATE2_SEL 0x1f #define NI_660X_MAX_UP_DOWN_PIN 7 -static inline unsigned GI_ALT_SYNC(enum ni_gpct_variant variant) +static inline unsigned int GI_ALT_SYNC(enum ni_gpct_variant variant) { switch (variant) { case ni_gpct_variant_e_series: @@ -128,7 +128,7 @@ static inline unsigned GI_ALT_SYNC(enum ni_gpct_variant variant) } } -static inline unsigned GI_PRESCALE_X2(enum ni_gpct_variant variant) +static inline unsigned int GI_PRESCALE_X2(enum ni_gpct_variant variant) { switch (variant) { case ni_gpct_variant_e_series: @@ -141,7 +141,7 @@ static inline unsigned GI_PRESCALE_X2(enum ni_gpct_variant variant) } } -static inline unsigned GI_PRESCALE_X8(enum ni_gpct_variant variant) +static inline unsigned int GI_PRESCALE_X8(enum ni_gpct_variant variant) { switch (variant) { case ni_gpct_variant_e_series: @@ -154,7 +154,7 @@ static inline unsigned GI_PRESCALE_X8(enum ni_gpct_variant variant) } } -static inline unsigned GI_HW_ARM_SEL_MASK(enum ni_gpct_variant variant) +static inline unsigned int GI_HW_ARM_SEL_MASK(enum ni_gpct_variant variant) { switch (variant) { case ni_gpct_variant_e_series: @@ -208,13 +208,13 @@ EXPORT_SYMBOL_GPL(ni_tio_read); static void ni_tio_reset_count_and_disarm(struct ni_gpct *counter) { - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; ni_tio_write(counter, GI_RESET(cidx), NITIO_RESET_REG(cidx)); } static uint64_t ni_tio_clock_period_ps(const struct ni_gpct *counter, - unsigned generic_clock_source) + unsigned int generic_clock_source) { uint64_t clock_period_ps; @@ -316,13 +316,13 @@ unsigned int ni_tio_get_soft_copy(const struct ni_gpct *counter, } EXPORT_SYMBOL_GPL(ni_tio_get_soft_copy); -static unsigned ni_tio_clock_src_modifiers(const struct ni_gpct *counter) +static unsigned int ni_tio_clock_src_modifiers(const struct ni_gpct *counter) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; - const unsigned counting_mode_bits = + unsigned int cidx = counter->counter_index; + unsigned int counting_mode_bits = ni_tio_get_soft_copy(counter, NITIO_CNT_MODE_REG(cidx)); - unsigned bits = 0; + unsigned int bits = 0; if (ni_tio_get_soft_copy(counter, NITIO_INPUT_SEL_REG(cidx)) & GI_SRC_POL_INVERT) @@ -334,14 +334,14 @@ static unsigned ni_tio_clock_src_modifiers(const struct ni_gpct *counter) return bits; } -static unsigned ni_m_series_clock_src_select(const struct ni_gpct *counter) +static unsigned int ni_m_series_clock_src_select(const struct ni_gpct *counter) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; - const unsigned second_gate_reg = NITIO_GATE2_REG(cidx); - unsigned clock_source = 0; - unsigned src; - unsigned i; + unsigned int cidx = counter->counter_index; + unsigned int second_gate_reg = NITIO_GATE2_REG(cidx); + unsigned int clock_source = 0; + unsigned int src; + unsigned int i; src = GI_BITS_TO_SRC(ni_tio_get_soft_copy(counter, NITIO_INPUT_SEL_REG(cidx))); @@ -399,12 +399,12 @@ static unsigned ni_m_series_clock_src_select(const struct ni_gpct *counter) return clock_source; } -static unsigned ni_660x_clock_src_select(const struct ni_gpct *counter) +static unsigned int ni_660x_clock_src_select(const struct ni_gpct *counter) { - unsigned clock_source = 0; - unsigned cidx = counter->counter_index; - unsigned src; - unsigned i; + unsigned int clock_source = 0; + unsigned int cidx = counter->counter_index; + unsigned int src; + unsigned int i; src = GI_BITS_TO_SRC(ni_tio_get_soft_copy(counter, NITIO_INPUT_SEL_REG(cidx))); @@ -456,7 +456,8 @@ static unsigned ni_660x_clock_src_select(const struct ni_gpct *counter) return clock_source; } -static unsigned ni_tio_generic_clock_src_select(const struct ni_gpct *counter) +static unsigned int +ni_tio_generic_clock_src_select(const struct ni_gpct *counter) { switch (counter->counter_dev->variant) { case ni_gpct_variant_e_series: @@ -471,10 +472,10 @@ static unsigned ni_tio_generic_clock_src_select(const struct ni_gpct *counter) static void ni_tio_set_sync_mode(struct ni_gpct *counter, int force_alt_sync) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; - const unsigned counting_mode_reg = NITIO_CNT_MODE_REG(cidx); + unsigned int cidx = counter->counter_index; + unsigned int counting_mode_reg = NITIO_CNT_MODE_REG(cidx); static const uint64_t min_normal_sync_period_ps = 25000; - unsigned mode; + unsigned int mode; uint64_t clock_period_ps; if (!ni_tio_counting_mode_registers_present(counter_dev)) @@ -512,15 +513,15 @@ static void ni_tio_set_sync_mode(struct ni_gpct *counter, int force_alt_sync) } } -static int ni_tio_set_counter_mode(struct ni_gpct *counter, unsigned mode) +static int ni_tio_set_counter_mode(struct ni_gpct *counter, unsigned int mode) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; - unsigned mode_reg_mask; - unsigned mode_reg_values; - unsigned input_select_bits = 0; + unsigned int cidx = counter->counter_index; + unsigned int mode_reg_mask; + unsigned int mode_reg_values; + unsigned int input_select_bits = 0; /* these bits map directly on to the mode register */ - static const unsigned mode_reg_direct_mask = + static const unsigned int mode_reg_direct_mask = NI_GPCT_GATE_ON_BOTH_EDGES_BIT | NI_GPCT_EDGE_GATE_MODE_MASK | NI_GPCT_STOP_MODE_MASK | NI_GPCT_OUTPUT_MODE_MASK | NI_GPCT_HARDWARE_DISARM_MASK | NI_GPCT_LOADING_ON_TC_BIT | @@ -546,7 +547,7 @@ static int ni_tio_set_counter_mode(struct ni_gpct *counter, unsigned mode) mode_reg_mask, mode_reg_values); if (ni_tio_counting_mode_registers_present(counter_dev)) { - unsigned bits = 0; + unsigned int bits = 0; bits |= GI_CNT_MODE(mode >> NI_GPCT_COUNTING_MODE_SHIFT); bits |= GI_INDEX_PHASE((mode >> NI_GPCT_INDEX_PHASE_BITSHIFT)); @@ -626,11 +627,11 @@ int ni_tio_arm(struct ni_gpct *counter, bool arm, unsigned int start_trigger) } EXPORT_SYMBOL_GPL(ni_tio_arm); -static unsigned ni_660x_clk_src(unsigned int clock_source) +static unsigned int ni_660x_clk_src(unsigned int clock_source) { - unsigned clk_src = clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK; - unsigned ni_660x_clock; - unsigned i; + unsigned int clk_src = clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK; + unsigned int ni_660x_clock; + unsigned int i; switch (clk_src) { case NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS: @@ -678,11 +679,11 @@ static unsigned ni_660x_clk_src(unsigned int clock_source) return GI_SRC_SEL(ni_660x_clock); } -static unsigned ni_m_clk_src(unsigned int clock_source) +static unsigned int ni_m_clk_src(unsigned int clock_source) { - unsigned clk_src = clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK; - unsigned ni_m_series_clock; - unsigned i; + unsigned int clk_src = clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK; + unsigned int ni_m_series_clock; + unsigned int i; switch (clk_src) { case NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS: @@ -742,8 +743,8 @@ static void ni_tio_set_source_subselect(struct ni_gpct *counter, unsigned int clock_source) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; - const unsigned second_gate_reg = NITIO_GATE2_REG(cidx); + unsigned int cidx = counter->counter_index; + unsigned int second_gate_reg = NITIO_GATE2_REG(cidx); if (counter_dev->variant != ni_gpct_variant_m_series) return; @@ -771,8 +772,8 @@ static int ni_tio_set_clock_src(struct ni_gpct *counter, unsigned int period_ns) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; - unsigned bits = 0; + unsigned int cidx = counter->counter_index; + unsigned int bits = 0; /* FIXME: validate clock source */ switch (counter_dev->variant) { @@ -829,9 +830,9 @@ static void ni_tio_get_clock_src(struct ni_gpct *counter, static int ni_660x_set_gate(struct ni_gpct *counter, unsigned int gate_source) { unsigned int chan = CR_CHAN(gate_source); - unsigned cidx = counter->counter_index; - unsigned gate_sel; - unsigned i; + unsigned int cidx = counter->counter_index; + unsigned int gate_sel; + unsigned int i; switch (chan) { case NI_GPCT_NEXT_SOURCE_GATE_SELECT: @@ -870,9 +871,9 @@ static int ni_660x_set_gate(struct ni_gpct *counter, unsigned int gate_source) static int ni_m_set_gate(struct ni_gpct *counter, unsigned int gate_source) { unsigned int chan = CR_CHAN(gate_source); - unsigned cidx = counter->counter_index; - unsigned gate_sel; - unsigned i; + unsigned int cidx = counter->counter_index; + unsigned int gate_sel; + unsigned int i; switch (chan) { case NI_GPCT_TIMESTAMP_MUX_GATE_SELECT: @@ -912,11 +913,11 @@ static int ni_m_set_gate(struct ni_gpct *counter, unsigned int gate_source) static int ni_660x_set_gate2(struct ni_gpct *counter, unsigned int gate_source) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; unsigned int chan = CR_CHAN(gate_source); - unsigned gate2_reg = NITIO_GATE2_REG(cidx); - unsigned gate2_sel; - unsigned i; + unsigned int gate2_reg = NITIO_GATE2_REG(cidx); + unsigned int gate2_sel; + unsigned int i; switch (chan) { case NI_GPCT_SOURCE_PIN_i_GATE_SELECT: @@ -958,10 +959,10 @@ static int ni_660x_set_gate2(struct ni_gpct *counter, unsigned int gate_source) static int ni_m_set_gate2(struct ni_gpct *counter, unsigned int gate_source) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; unsigned int chan = CR_CHAN(gate_source); - unsigned gate2_reg = NITIO_GATE2_REG(cidx); - unsigned gate2_sel; + unsigned int gate2_reg = NITIO_GATE2_REG(cidx); + unsigned int gate2_sel; /* * FIXME: We don't know what the m-series second gate codes are, @@ -1045,11 +1046,11 @@ int ni_tio_set_gate_src(struct ni_gpct *counter, } EXPORT_SYMBOL_GPL(ni_tio_set_gate_src); -static int ni_tio_set_other_src(struct ni_gpct *counter, unsigned index, +static int ni_tio_set_other_src(struct ni_gpct *counter, unsigned int index, unsigned int source) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; unsigned int abz_reg, shift, mask; if (counter_dev->variant != ni_gpct_variant_m_series) @@ -1079,9 +1080,9 @@ static int ni_tio_set_other_src(struct ni_gpct *counter, unsigned index, return 0; } -static unsigned ni_660x_gate_to_generic_gate(unsigned gate) +static unsigned int ni_660x_gate_to_generic_gate(unsigned int gate) { - unsigned i; + unsigned int i; switch (gate) { case NI_660X_SRC_PIN_I_GATE_SEL: @@ -1109,9 +1110,9 @@ static unsigned ni_660x_gate_to_generic_gate(unsigned gate) return 0; }; -static unsigned ni_m_gate_to_generic_gate(unsigned gate) +static unsigned int ni_m_gate_to_generic_gate(unsigned int gate) { - unsigned i; + unsigned int i; switch (gate) { case NI_M_TIMESTAMP_MUX_GATE_SEL: @@ -1145,9 +1146,9 @@ static unsigned ni_m_gate_to_generic_gate(unsigned gate) return 0; }; -static unsigned ni_660x_gate2_to_generic_gate(unsigned gate) +static unsigned int ni_660x_gate2_to_generic_gate(unsigned int gate) { - unsigned i; + unsigned int i; switch (gate) { case NI_660X_SRC_PIN_I_GATE2_SEL: @@ -1177,7 +1178,7 @@ static unsigned ni_660x_gate2_to_generic_gate(unsigned gate) return 0; }; -static unsigned ni_m_gate2_to_generic_gate(unsigned gate) +static unsigned int ni_m_gate2_to_generic_gate(unsigned int gate) { /* * FIXME: the second gate sources for the m series are undocumented, @@ -1190,14 +1191,14 @@ static unsigned ni_m_gate2_to_generic_gate(unsigned gate) return 0; }; -static int ni_tio_get_gate_src(struct ni_gpct *counter, unsigned gate_index, +static int ni_tio_get_gate_src(struct ni_gpct *counter, unsigned int gate_index, unsigned int *gate_source) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; - unsigned mode = ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)); - unsigned gate2_reg = NITIO_GATE2_REG(cidx); - unsigned gate; + unsigned int cidx = counter->counter_index; + unsigned int mode = ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)); + unsigned int gate2_reg = NITIO_GATE2_REG(cidx); + unsigned int gate; switch (gate_index) { case 0: @@ -1261,8 +1262,8 @@ int ni_tio_insn_config(struct comedi_device *dev, unsigned int *data) { struct ni_gpct *counter = s->private; - unsigned cidx = counter->counter_index; - unsigned status; + unsigned int cidx = counter->counter_index; + unsigned int status; switch (data[0]) { case INSN_CONFIG_SET_COUNTER_MODE: @@ -1307,7 +1308,7 @@ static unsigned int ni_tio_read_sw_save_reg(struct comedi_device *dev, struct comedi_subdevice *s) { struct ni_gpct *counter = s->private; - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; unsigned int val; ni_tio_set_bits(counter, NITIO_CMD_REG(cidx), GI_SAVE_TRACE, 0); @@ -1338,7 +1339,7 @@ int ni_tio_insn_read(struct comedi_device *dev, struct ni_gpct *counter = s->private; struct ni_gpct_device *counter_dev = counter->counter_dev; unsigned int channel = CR_CHAN(insn->chanspec); - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; int i; for (i = 0; i < insn->n; i++) { @@ -1358,11 +1359,10 @@ int ni_tio_insn_read(struct comedi_device *dev, } EXPORT_SYMBOL_GPL(ni_tio_insn_read); -static unsigned ni_tio_next_load_register(struct ni_gpct *counter) +static unsigned int ni_tio_next_load_register(struct ni_gpct *counter) { - unsigned cidx = counter->counter_index; - const unsigned bits = - ni_tio_read(counter, NITIO_SHARED_STATUS_REG(cidx)); + unsigned int cidx = counter->counter_index; + unsigned int bits = ni_tio_read(counter, NITIO_SHARED_STATUS_REG(cidx)); return (bits & GI_NEXT_LOAD_SRC(cidx)) ? NITIO_LOADB_REG(cidx) @@ -1376,9 +1376,9 @@ int ni_tio_insn_write(struct comedi_device *dev, { struct ni_gpct *counter = s->private; struct ni_gpct_device *counter_dev = counter->counter_dev; - const unsigned channel = CR_CHAN(insn->chanspec); - unsigned cidx = counter->counter_index; - unsigned load_reg; + unsigned int channel = CR_CHAN(insn->chanspec); + unsigned int cidx = counter->counter_index; + unsigned int load_reg; if (insn->n < 1) return 0; @@ -1418,7 +1418,7 @@ EXPORT_SYMBOL_GPL(ni_tio_insn_write); void ni_tio_init_counter(struct ni_gpct *counter) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; ni_tio_reset_count_and_disarm(counter); -- cgit v0.10.2 From 3676cdd9539a64d1b3e8cad8d8e5184bf860841a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:51 -0700 Subject: staging: comedi: ni_tio: Prefer kernel type 'u64' over 'uint64_t' Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index ecf8527..e4fd221 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -213,10 +213,10 @@ static void ni_tio_reset_count_and_disarm(struct ni_gpct *counter) ni_tio_write(counter, GI_RESET(cidx), NITIO_RESET_REG(cidx)); } -static uint64_t ni_tio_clock_period_ps(const struct ni_gpct *counter, - unsigned int generic_clock_source) +static u64 ni_tio_clock_period_ps(const struct ni_gpct *counter, + unsigned int generic_clock_source) { - uint64_t clock_period_ps; + u64 clock_period_ps; switch (generic_clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK) { case NI_GPCT_TIMEBASE_1_CLOCK_SRC_BITS: @@ -474,9 +474,9 @@ static void ni_tio_set_sync_mode(struct ni_gpct *counter, int force_alt_sync) struct ni_gpct_device *counter_dev = counter->counter_dev; unsigned int cidx = counter->counter_index; unsigned int counting_mode_reg = NITIO_CNT_MODE_REG(cidx); - static const uint64_t min_normal_sync_period_ps = 25000; + static const u64 min_normal_sync_period_ps = 25000; unsigned int mode; - uint64_t clock_period_ps; + u64 clock_period_ps; if (!ni_tio_counting_mode_registers_present(counter_dev)) return; @@ -819,7 +819,7 @@ static void ni_tio_get_clock_src(struct ni_gpct *counter, unsigned int *clock_source, unsigned int *period_ns) { - uint64_t temp64; + u64 temp64; *clock_source = ni_tio_generic_clock_src_select(counter); temp64 = ni_tio_clock_period_ps(counter, *clock_source); -- cgit v0.10.2 From 8e621cf0cb9761b7ef74a63d228ce62418dc5b8c Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:52 -0700 Subject: staging: comedi: ni_tio: fix block comments Fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index e4fd221..e7af98d 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -1,19 +1,18 @@ /* - comedi/drivers/ni_tio.c - Support for NI general purpose counters - - Copyright (C) 2006 Frank Mori Hess - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * Support for NI general purpose counters + * + * Copyright (C) 2006 Frank Mori Hess + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ /* * Module: ni_tio @@ -36,13 +35,10 @@ * DAQ 660x Register-Level Programmer Manual (NI 370505A-01) * DAQ 6601/6602 User Manual (NI 322137B-01) * 340934b.pdf DAQ-STC reference manual + * + * TODO: Support use of both banks X and Y */ -/* -TODO: - Support use of both banks X and Y -*/ - #include #include -- cgit v0.10.2 From a56b3f57c2f08a6f42c957c3731ca9f8158b6355 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:53 -0700 Subject: staging: comedi: ni_tio: tidy up ni_tio_get_gate_src() Clarify the code a bit by handling the NI_GPCT_DISABLED_GATE_SELECT source in the common code path. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index e7af98d..ce64cc3 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -1192,19 +1192,22 @@ static int ni_tio_get_gate_src(struct ni_gpct *counter, unsigned int gate_index, { struct ni_gpct_device *counter_dev = counter->counter_dev; unsigned int cidx = counter->counter_index; - unsigned int mode = ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)); - unsigned int gate2_reg = NITIO_GATE2_REG(cidx); + unsigned int mode; + unsigned int reg; unsigned int gate; + mode = ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)); + if (((mode & GI_GATING_MODE_MASK) == GI_GATING_DISABLED) || + (gate_index == 1 && + !(counter_dev->regs[NITIO_GATE2_REG(cidx)] & GI_GATE2_MODE))) { + *gate_source = NI_GPCT_DISABLED_GATE_SELECT; + return 0; + } + switch (gate_index) { case 0: - if ((mode & GI_GATING_MODE_MASK) == GI_GATING_DISABLED) { - *gate_source = NI_GPCT_DISABLED_GATE_SELECT; - return 0; - } - - gate = GI_BITS_TO_GATE(ni_tio_get_soft_copy(counter, - NITIO_INPUT_SEL_REG(cidx))); + reg = NITIO_INPUT_SEL_REG(cidx); + gate = GI_BITS_TO_GATE(ni_tio_get_soft_copy(counter, reg)); switch (counter_dev->variant) { case ni_gpct_variant_e_series: @@ -1222,13 +1225,8 @@ static int ni_tio_get_gate_src(struct ni_gpct *counter, unsigned int gate_index, *gate_source |= CR_EDGE; break; case 1: - if ((mode & GI_GATING_MODE_MASK) == GI_GATING_DISABLED || - !(counter_dev->regs[gate2_reg] & GI_GATE2_MODE)) { - *gate_source = NI_GPCT_DISABLED_GATE_SELECT; - return 0; - } - - gate = GI_BITS_TO_GATE2(counter_dev->regs[gate2_reg]); + reg = NITIO_GATE2_REG(cidx); + gate = GI_BITS_TO_GATE2(counter_dev->regs[reg]); switch (counter_dev->variant) { case ni_gpct_variant_e_series: @@ -1240,7 +1238,7 @@ static int ni_tio_get_gate_src(struct ni_gpct *counter, unsigned int gate_index, *gate_source = ni_660x_gate2_to_generic_gate(gate); break; } - if (counter_dev->regs[gate2_reg] & GI_GATE2_POL_INVERT) + if (counter_dev->regs[reg] & GI_GATE2_POL_INVERT) *gate_source |= CR_INVERT; /* second gate can't have edge/level mode set independently */ if ((mode & GI_GATING_MODE_MASK) != GI_LEVEL_GATING) -- cgit v0.10.2 From f51700a6428d7c8e94d48fd2fbb1062c604e8b2c Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:54 -0700 Subject: staging: comedi: ni_tio: tidy up ni_tio_set_sync_mode() The 'force_alt_sync' paramater is always 0. Remove it. Absorb the GI_ALT_SYNC() inline helper and use some local variables to clarify this function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index ce64cc3..2c33b28 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -111,19 +111,6 @@ #define NI_660X_LOGIC_LOW_GATE2_SEL 0x1f #define NI_660X_MAX_UP_DOWN_PIN 7 -static inline unsigned int GI_ALT_SYNC(enum ni_gpct_variant variant) -{ - switch (variant) { - case ni_gpct_variant_e_series: - default: - return 0; - case ni_gpct_variant_m_series: - return GI_M_ALT_SYNC; - case ni_gpct_variant_660x: - return GI_660X_ALT_SYNC; - } -} - static inline unsigned int GI_PRESCALE_X2(enum ni_gpct_variant variant) { switch (variant) { @@ -465,48 +452,56 @@ ni_tio_generic_clock_src_select(const struct ni_gpct *counter) } } -static void ni_tio_set_sync_mode(struct ni_gpct *counter, int force_alt_sync) +static void ni_tio_set_sync_mode(struct ni_gpct *counter) { struct ni_gpct_device *counter_dev = counter->counter_dev; unsigned int cidx = counter->counter_index; - unsigned int counting_mode_reg = NITIO_CNT_MODE_REG(cidx); static const u64 min_normal_sync_period_ps = 25000; + unsigned int mask = 0; + unsigned int bits = 0; + unsigned int reg; unsigned int mode; - u64 clock_period_ps; + u64 ps; + bool force_alt_sync; - if (!ni_tio_counting_mode_registers_present(counter_dev)) + /* only m series and 660x variants have counting mode registers */ + switch (counter_dev->variant) { + case ni_gpct_variant_e_series: + default: return; + case ni_gpct_variant_m_series: + mask = GI_M_ALT_SYNC; + break; + case ni_gpct_variant_660x: + mask = GI_660X_ALT_SYNC; + break; + } - mode = ni_tio_get_soft_copy(counter, counting_mode_reg); + reg = NITIO_CNT_MODE_REG(cidx); + mode = ni_tio_get_soft_copy(counter, reg); switch (mode & GI_CNT_MODE_MASK) { case GI_CNT_MODE_QUADX1: case GI_CNT_MODE_QUADX2: case GI_CNT_MODE_QUADX4: case GI_CNT_MODE_SYNC_SRC: - force_alt_sync = 1; + force_alt_sync = true; break; default: + force_alt_sync = false; break; } - clock_period_ps = ni_tio_clock_period_ps(counter, - ni_tio_generic_clock_src_select(counter)); + ps = ni_tio_clock_period_ps(counter, + ni_tio_generic_clock_src_select(counter)); /* * It's not clear what we should do if clock_period is unknown, so we - * are not using the alt sync bit in that case, but allow the caller - * to decide by using the force_alt_sync parameter. + * are not using the alt sync bit in that case. */ - if (force_alt_sync || - (clock_period_ps && clock_period_ps < min_normal_sync_period_ps)) { - ni_tio_set_bits(counter, counting_mode_reg, - GI_ALT_SYNC(counter_dev->variant), - GI_ALT_SYNC(counter_dev->variant)); - } else { - ni_tio_set_bits(counter, counting_mode_reg, - GI_ALT_SYNC(counter_dev->variant), - 0x0); - } + if (force_alt_sync || (ps && ps < min_normal_sync_period_ps)) + bits = mask; + + ni_tio_set_bits(counter, reg, mask, bits); } static int ni_tio_set_counter_mode(struct ni_gpct *counter, unsigned int mode) @@ -552,7 +547,7 @@ static int ni_tio_set_counter_mode(struct ni_gpct *counter, unsigned int mode) ni_tio_set_bits(counter, NITIO_CNT_MODE_REG(cidx), GI_CNT_MODE_MASK | GI_INDEX_PHASE_MASK | GI_INDEX_MODE, bits); - ni_tio_set_sync_mode(counter, 0); + ni_tio_set_sync_mode(counter); } ni_tio_set_bits(counter, NITIO_CMD_REG(cidx), GI_CNT_DIR_MASK, @@ -807,7 +802,7 @@ static int ni_tio_set_clock_src(struct ni_gpct *counter, GI_PRESCALE_X8(counter_dev->variant), bits); } counter->clock_period_ps = period_ns * 1000; - ni_tio_set_sync_mode(counter, 0); + ni_tio_set_sync_mode(counter); return 0; } -- cgit v0.10.2 From e3f7bb258b2f73c595ea8f2d26ad2cb137844b8a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:55 -0700 Subject: staging: comedi: ni_tio: tidy up ni_tio_arm() Make this function a bit more consise by absorbing the GI_HW_ARM_SEL_MASK() inline helper and combine the two switch (start_trigger) code paths. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 2c33b28..e7209c1 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -137,19 +137,6 @@ static inline unsigned int GI_PRESCALE_X8(enum ni_gpct_variant variant) } } -static inline unsigned int GI_HW_ARM_SEL_MASK(enum ni_gpct_variant variant) -{ - switch (variant) { - case ni_gpct_variant_e_series: - default: - return 0; - case ni_gpct_variant_m_series: - return GI_M_HW_ARM_SEL_MASK; - case ni_gpct_variant_660x: - return GI_660X_HW_ARM_SEL_MASK; - } -} - static bool ni_tio_has_gate2_registers(const struct ni_gpct_device *counter_dev) { switch (counter_dev->variant) { @@ -568,52 +555,55 @@ int ni_tio_arm(struct ni_gpct *counter, bool arm, unsigned int start_trigger) { struct ni_gpct_device *counter_dev = counter->counter_dev; unsigned int cidx = counter->counter_index; - unsigned int command_transient_bits = 0; + unsigned int transient_bits = 0; if (arm) { + unsigned int mask = 0; + unsigned int bits = 0; + + /* only m series and 660x have counting mode registers */ + switch (counter_dev->variant) { + case ni_gpct_variant_e_series: + default: + break; + case ni_gpct_variant_m_series: + mask = GI_M_HW_ARM_SEL_MASK; + break; + case ni_gpct_variant_660x: + mask = GI_660X_HW_ARM_SEL_MASK; + break; + } + switch (start_trigger) { case NI_GPCT_ARM_IMMEDIATE: - command_transient_bits |= GI_ARM; + transient_bits |= GI_ARM; break; case NI_GPCT_ARM_PAIRED_IMMEDIATE: - command_transient_bits |= GI_ARM | GI_ARM_COPY; + transient_bits |= GI_ARM | GI_ARM_COPY; break; default: + /* + * for m series and 660x, pass-through the least + * significant bits so we can figure out what select + * later + */ + if (mask && (start_trigger & NI_GPCT_ARM_UNKNOWN)) { + bits |= GI_HW_ARM_ENA | + (GI_HW_ARM_SEL(start_trigger) & mask); + } else { + return -EINVAL; + } break; } - if (ni_tio_counting_mode_registers_present(counter_dev)) { - unsigned int bits = 0; - unsigned int sel_mask; - sel_mask = GI_HW_ARM_SEL_MASK(counter_dev->variant); - - switch (start_trigger) { - case NI_GPCT_ARM_IMMEDIATE: - case NI_GPCT_ARM_PAIRED_IMMEDIATE: - break; - default: - if (start_trigger & NI_GPCT_ARM_UNKNOWN) { - /* - * pass-through the least significant - * bits so we can figure out what - * select later - */ - bits |= GI_HW_ARM_ENA | - (GI_HW_ARM_SEL(start_trigger) & - sel_mask); - } else { - return -EINVAL; - } - break; - } + if (mask) ni_tio_set_bits(counter, NITIO_CNT_MODE_REG(cidx), - GI_HW_ARM_ENA | sel_mask, bits); - } + GI_HW_ARM_ENA | mask, bits); } else { - command_transient_bits |= GI_DISARM; + transient_bits |= GI_DISARM; } ni_tio_set_bits_transient(counter, NITIO_CMD_REG(cidx), - 0, 0, command_transient_bits); + 0, 0, transient_bits); return 0; } EXPORT_SYMBOL_GPL(ni_tio_arm); -- cgit v0.10.2 From 9f62bee520b04346c3501a5da7534a96b873c01f Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:56 -0700 Subject: staging: comedi: ni_tiocmd: Prefer 'unsigned int' to bare use of 'unsigned' Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index d5ffbb1..df4ffdb 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -51,9 +51,9 @@ static void ni_tio_configure_dma(struct ni_gpct *counter, bool enable, bool read) { struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; - unsigned mask; - unsigned bits; + unsigned int cidx = counter->counter_index; + unsigned int mask; + unsigned int bits; mask = GI_READ_ACKS_IRQ | GI_WRITE_ACKS_IRQ; bits = 0; @@ -113,7 +113,7 @@ static int ni_tio_input_cmd(struct comedi_subdevice *s) { struct ni_gpct *counter = s->private; struct ni_gpct_device *counter_dev = counter->counter_dev; - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; int ret = 0; @@ -163,9 +163,9 @@ static int ni_tio_cmd_setup(struct comedi_subdevice *s) { struct comedi_cmd *cmd = &s->async->cmd; struct ni_gpct *counter = s->private; - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; int set_gate_source = 0; - unsigned gate_source; + unsigned int gate_source; int retval = 0; if (cmd->scan_begin_src == TRIG_EXT) { @@ -289,7 +289,7 @@ EXPORT_SYMBOL_GPL(ni_tio_cmdtest); int ni_tio_cancel(struct ni_gpct *counter) { - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; unsigned long flags; ni_tio_arm(counter, false, 0); @@ -341,12 +341,12 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, int *perm_stale_data, int *stale_data) { - unsigned cidx = counter->counter_index; + unsigned int cidx = counter->counter_index; const unsigned short gxx_status = ni_tio_read(counter, NITIO_SHARED_STATUS_REG(cidx)); const unsigned short gi_status = ni_tio_read(counter, NITIO_STATUS_REG(cidx)); - unsigned ack = 0; + unsigned int ack = 0; if (gate_error) *gate_error = 0; @@ -407,8 +407,8 @@ EXPORT_SYMBOL_GPL(ni_tio_acknowledge); void ni_tio_handle_interrupt(struct ni_gpct *counter, struct comedi_subdevice *s) { - unsigned cidx = counter->counter_index; - unsigned gpct_mite_status; + unsigned int cidx = counter->counter_index; + unsigned int gpct_mite_status; unsigned long flags; int gate_error; int tc_error; -- cgit v0.10.2 From b878a82ee15f77ff1106aa0e5be36a1ee3ec85ea Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:57 -0700 Subject: staging: comedi: ni_tiocmd: fix block comments Fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index df4ffdb..1400b1f 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -1,19 +1,18 @@ /* - comedi/drivers/ni_tiocmd.c - Command support for NI general purpose counters - - Copyright (C) 2006 Frank Mori Hess - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * Command support for NI general purpose counters + * + * Copyright (C) 2006 Frank Mori Hess + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ /* * Module: ni_tiocmd @@ -36,13 +35,10 @@ * DAQ 660x Register-Level Programmer Manual (NI 370505A-01) * DAQ 6601/6602 User Manual (NI 322137B-01) * 340934b.pdf DAQ-STC reference manual + * + * TODO: Support use of both banks X and Y */ -/* -TODO: - Support use of both banks X and Y -*/ - #include #include "ni_tio_internal.h" #include "mite.h" @@ -305,9 +301,6 @@ int ni_tio_cancel(struct ni_gpct *counter) } EXPORT_SYMBOL_GPL(ni_tio_cancel); - /* During buffered input counter operation for e-series, the gate - interrupt is acked automatically by the dma controller, due to the - Gi_Read/Write_Acknowledges_IRQ bits in the input select register. */ static int should_ack_gate(struct ni_gpct *counter) { unsigned long flags; @@ -315,12 +308,19 @@ static int should_ack_gate(struct ni_gpct *counter) switch (counter->counter_dev->variant) { case ni_gpct_variant_m_series: - /* not sure if 660x really supports gate - interrupts (the bits are not listed - in register-level manual) */ case ni_gpct_variant_660x: + /* + * not sure if 660x really supports gate interrupts + * (the bits are not listed in register-level manual) + */ return 1; case ni_gpct_variant_e_series: + /* + * During buffered input counter operation for e-series, + * the gate interrupt is acked automatically by the dma + * controller, due to the Gi_Read/Write_Acknowledges_IRQ + * bits in the input select register. + */ spin_lock_irqsave(&counter->lock, flags); { if (!counter->mite_chan || @@ -360,9 +360,11 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, if (gxx_status & GI_GATE_ERROR(cidx)) { ack |= GI_GATE_ERROR_CONFIRM(cidx); if (gate_error) { - /*660x don't support automatic acknowledgment - of gate interrupt via dma read/write - and report bogus gate errors */ + /* + * 660x don't support automatic acknowledgment + * of gate interrupt via dma read/write + * and report bogus gate errors + */ if (counter->counter_dev->variant != ni_gpct_variant_660x) *gate_error = 1; -- cgit v0.10.2 From 53d63371293dfc8fdd49f14716c2f2b80aa11373 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:58 -0700 Subject: staging: comedi: ni_tiocmd: remove unsed param from ni_tio_acknowledge_and_confirm() The 'stale_data' pointer is always NULL. Just remove it. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index 1400b1f..2d801bf9 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -338,8 +338,7 @@ static int should_ack_gate(struct ni_gpct *counter) static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, int *gate_error, int *tc_error, - int *perm_stale_data, - int *stale_data) + int *perm_stale_data) { unsigned int cidx = counter->counter_index; const unsigned short gxx_status = ni_tio_read(counter, @@ -354,8 +353,6 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, *tc_error = 0; if (perm_stale_data) *perm_stale_data = 0; - if (stale_data) - *stale_data = 0; if (gxx_status & GI_GATE_ERROR(cidx)) { ack |= GI_GATE_ERROR_CONFIRM(cidx); @@ -385,10 +382,6 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, ni_tio_write(counter, ack, NITIO_INT_ACK_REG(cidx)); if (ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)) & GI_LOADING_ON_GATE) { - if (gxx_status & GI_STALE_DATA(cidx)) { - if (stale_data) - *stale_data = 1; - } if (ni_tio_read(counter, NITIO_STATUS2_REG(cidx)) & GI_PERMANENT_STALE(cidx)) { dev_info(counter->counter_dev->dev->class_dev, @@ -402,7 +395,7 @@ static void ni_tio_acknowledge_and_confirm(struct ni_gpct *counter, void ni_tio_acknowledge(struct ni_gpct *counter) { - ni_tio_acknowledge_and_confirm(counter, NULL, NULL, NULL, NULL); + ni_tio_acknowledge_and_confirm(counter, NULL, NULL, NULL); } EXPORT_SYMBOL_GPL(ni_tio_acknowledge); @@ -417,7 +410,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, int perm_stale_data; ni_tio_acknowledge_and_confirm(counter, &gate_error, &tc_error, - &perm_stale_data, NULL); + &perm_stale_data); if (gate_error) { dev_notice(counter->counter_dev->dev->class_dev, "%s: Gi_Gate_Error detected.\n", __func__); -- cgit v0.10.2 From a19b9b476ae3612e6c61c60e7fad7c8974158ef9 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:36:59 -0700 Subject: staging: comedi: ni_tiocmd: remove BUG() which can never occur All the counter_dev->variant options are handled by the switch. Remove the BUG() which can never occur. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index 2d801bf9..3c3f543 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -125,9 +125,6 @@ static int ni_tio_input_cmd(struct comedi_subdevice *s) case ni_gpct_variant_e_series: mite_prep_dma(counter->mite_chan, 16, 32); break; - default: - BUG(); - break; } ni_tio_set_bits(counter, NITIO_CMD_REG(cidx), GI_SAVE_TRACE, 0); ni_tio_configure_dma(counter, true, true); -- cgit v0.10.2 From d87f5e90585a8b8646c3e9fe92d4c47716f5e19d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:37:00 -0700 Subject: staging: comedi: ni_tio: validate clock source Refactor the functions that determine the clock source bits so that they return -EINVAL if the clock source is invalid. Pass the errno back to ni_tio_insn_config(). Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index e7209c1..564ec9b 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -608,7 +608,7 @@ int ni_tio_arm(struct ni_gpct *counter, bool arm, unsigned int start_trigger) } EXPORT_SYMBOL_GPL(ni_tio_arm); -static unsigned int ni_660x_clk_src(unsigned int clock_source) +static int ni_660x_clk_src(unsigned int clock_source, unsigned int *bits) { unsigned int clk_src = clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK; unsigned int ni_660x_clock; @@ -653,14 +653,13 @@ static unsigned int ni_660x_clk_src(unsigned int clock_source) } if (i <= NI_660X_MAX_SRC_PIN) break; - ni_660x_clock = 0; - BUG(); - break; + return -EINVAL; } - return GI_SRC_SEL(ni_660x_clock); + *bits = GI_SRC_SEL(ni_660x_clock); + return 0; } -static unsigned int ni_m_clk_src(unsigned int clock_source) +static int ni_m_clk_src(unsigned int clock_source, unsigned int *bits) { unsigned int clk_src = clock_source & NI_GPCT_CLOCK_SRC_SELECT_MASK; unsigned int ni_m_series_clock; @@ -711,13 +710,10 @@ static unsigned int ni_m_clk_src(unsigned int clock_source) } if (i <= NI_M_MAX_PFI_CHAN) break; - pr_err("invalid clock source 0x%lx\n", - (unsigned long)clock_source); - BUG(); - ni_m_series_clock = 0; - break; + return -EINVAL; } - return GI_SRC_SEL(ni_m_series_clock); + *bits = GI_SRC_SEL(ni_m_series_clock); + return 0; }; static void ni_tio_set_source_subselect(struct ni_gpct *counter, @@ -755,18 +751,26 @@ static int ni_tio_set_clock_src(struct ni_gpct *counter, struct ni_gpct_device *counter_dev = counter->counter_dev; unsigned int cidx = counter->counter_index; unsigned int bits = 0; + int ret; - /* FIXME: validate clock source */ switch (counter_dev->variant) { case ni_gpct_variant_660x: - bits |= ni_660x_clk_src(clock_source); + ret = ni_660x_clk_src(clock_source, &bits); break; case ni_gpct_variant_e_series: case ni_gpct_variant_m_series: default: - bits |= ni_m_clk_src(clock_source); + ret = ni_m_clk_src(clock_source, &bits); break; } + if (ret) { + struct comedi_device *dev = counter_dev->dev; + + dev_err(dev->class_dev, "invalid clock source 0x%x\n", + clock_source); + return ret; + } + if (clock_source & NI_GPCT_INVERT_CLOCK_SRC_BIT) bits |= GI_SRC_POL_INVERT; ni_tio_set_bits(counter, NITIO_INPUT_SEL_REG(cidx), -- cgit v0.10.2 From 475ea1ed14cce2608ed0f12474be2a3d75880eaf Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:37:01 -0700 Subject: staging: comedi: ni_tio: remove BUG() checks for ni_tio_get_gate_src() This function calls some helper functions to convert the counter variant specific gate select bits into the generic enum ni_gpct_clock_source_bits equivelent. These helper functions currently BUG() if the gate select bits are invalid. This should never happen but refactor the code to return -EINVAL instead and remove the BUG() checks. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 564ec9b..51dd368 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -1065,114 +1065,157 @@ static int ni_tio_set_other_src(struct ni_gpct *counter, unsigned int index, return 0; } -static unsigned int ni_660x_gate_to_generic_gate(unsigned int gate) +static int ni_660x_gate_to_generic_gate(unsigned int gate, unsigned int *src) { + unsigned int source; unsigned int i; switch (gate) { case NI_660X_SRC_PIN_I_GATE_SEL: - return NI_GPCT_SOURCE_PIN_i_GATE_SELECT; + source = NI_GPCT_SOURCE_PIN_i_GATE_SELECT; + break; case NI_660X_GATE_PIN_I_GATE_SEL: - return NI_GPCT_GATE_PIN_i_GATE_SELECT; + source = NI_GPCT_GATE_PIN_i_GATE_SELECT; + break; case NI_660X_NEXT_SRC_GATE_SEL: - return NI_GPCT_NEXT_SOURCE_GATE_SELECT; + source = NI_GPCT_NEXT_SOURCE_GATE_SELECT; + break; case NI_660X_NEXT_OUT_GATE_SEL: - return NI_GPCT_NEXT_OUT_GATE_SELECT; + source = NI_GPCT_NEXT_OUT_GATE_SELECT; + break; case NI_660X_LOGIC_LOW_GATE_SEL: - return NI_GPCT_LOGIC_LOW_GATE_SELECT; + source = NI_GPCT_LOGIC_LOW_GATE_SELECT; + break; default: for (i = 0; i <= NI_660X_MAX_RTSI_CHAN; ++i) { - if (gate == NI_660X_RTSI_GATE_SEL(i)) - return NI_GPCT_RTSI_GATE_SELECT(i); + if (gate == NI_660X_RTSI_GATE_SEL(i)) { + source = NI_GPCT_RTSI_GATE_SELECT(i); + break; + } } + if (i <= NI_660X_MAX_RTSI_CHAN) + break; for (i = 0; i <= NI_660X_MAX_GATE_PIN; ++i) { - if (gate == NI_660X_PIN_GATE_SEL(i)) - return NI_GPCT_GATE_PIN_GATE_SELECT(i); + if (gate == NI_660X_PIN_GATE_SEL(i)) { + source = NI_GPCT_GATE_PIN_GATE_SELECT(i); + break; + } } - BUG(); - break; + if (i <= NI_660X_MAX_GATE_PIN) + break; + return -EINVAL; } + *src = source; return 0; }; -static unsigned int ni_m_gate_to_generic_gate(unsigned int gate) +static int ni_m_gate_to_generic_gate(unsigned int gate, unsigned int *src) { + unsigned int source; unsigned int i; switch (gate) { case NI_M_TIMESTAMP_MUX_GATE_SEL: - return NI_GPCT_TIMESTAMP_MUX_GATE_SELECT; + source = NI_GPCT_TIMESTAMP_MUX_GATE_SELECT; + break; case NI_M_AI_START2_GATE_SEL: - return NI_GPCT_AI_START2_GATE_SELECT; + source = NI_GPCT_AI_START2_GATE_SELECT; + break; case NI_M_PXI_STAR_TRIGGER_GATE_SEL: - return NI_GPCT_PXI_STAR_TRIGGER_GATE_SELECT; + source = NI_GPCT_PXI_STAR_TRIGGER_GATE_SELECT; + break; case NI_M_NEXT_OUT_GATE_SEL: - return NI_GPCT_NEXT_OUT_GATE_SELECT; + source = NI_GPCT_NEXT_OUT_GATE_SELECT; + break; case NI_M_AI_START1_GATE_SEL: - return NI_GPCT_AI_START1_GATE_SELECT; + source = NI_GPCT_AI_START1_GATE_SELECT; + break; case NI_M_NEXT_SRC_GATE_SEL: - return NI_GPCT_NEXT_SOURCE_GATE_SELECT; + source = NI_GPCT_NEXT_SOURCE_GATE_SELECT; + break; case NI_M_ANALOG_TRIG_OUT_GATE_SEL: - return NI_GPCT_ANALOG_TRIGGER_OUT_GATE_SELECT; + source = NI_GPCT_ANALOG_TRIGGER_OUT_GATE_SELECT; + break; case NI_M_LOGIC_LOW_GATE_SEL: - return NI_GPCT_LOGIC_LOW_GATE_SELECT; + source = NI_GPCT_LOGIC_LOW_GATE_SELECT; + break; default: for (i = 0; i <= NI_M_MAX_RTSI_CHAN; ++i) { - if (gate == NI_M_RTSI_GATE_SEL(i)) - return NI_GPCT_RTSI_GATE_SELECT(i); + if (gate == NI_M_RTSI_GATE_SEL(i)) { + source = NI_GPCT_RTSI_GATE_SELECT(i); + break; + } } + if (i <= NI_M_MAX_RTSI_CHAN) + break; for (i = 0; i <= NI_M_MAX_PFI_CHAN; ++i) { - if (gate == NI_M_PFI_GATE_SEL(i)) - return NI_GPCT_PFI_GATE_SELECT(i); + if (gate == NI_M_PFI_GATE_SEL(i)) { + source = NI_GPCT_PFI_GATE_SELECT(i); + break; + } } - BUG(); - break; + if (i <= NI_M_MAX_PFI_CHAN) + break; + return -EINVAL; } + *src = source; return 0; }; -static unsigned int ni_660x_gate2_to_generic_gate(unsigned int gate) +static int ni_660x_gate2_to_generic_gate(unsigned int gate, unsigned int *src) { + unsigned int source; unsigned int i; switch (gate) { case NI_660X_SRC_PIN_I_GATE2_SEL: - return NI_GPCT_SOURCE_PIN_i_GATE_SELECT; + source = NI_GPCT_SOURCE_PIN_i_GATE_SELECT; + break; case NI_660X_UD_PIN_I_GATE2_SEL: - return NI_GPCT_UP_DOWN_PIN_i_GATE_SELECT; + source = NI_GPCT_UP_DOWN_PIN_i_GATE_SELECT; + break; case NI_660X_NEXT_SRC_GATE2_SEL: - return NI_GPCT_NEXT_SOURCE_GATE_SELECT; + source = NI_GPCT_NEXT_SOURCE_GATE_SELECT; + break; case NI_660X_NEXT_OUT_GATE2_SEL: - return NI_GPCT_NEXT_OUT_GATE_SELECT; + source = NI_GPCT_NEXT_OUT_GATE_SELECT; + break; case NI_660X_SELECTED_GATE2_SEL: - return NI_GPCT_SELECTED_GATE_GATE_SELECT; + source = NI_GPCT_SELECTED_GATE_GATE_SELECT; + break; case NI_660X_LOGIC_LOW_GATE2_SEL: - return NI_GPCT_LOGIC_LOW_GATE_SELECT; + source = NI_GPCT_LOGIC_LOW_GATE_SELECT; + break; default: for (i = 0; i <= NI_660X_MAX_RTSI_CHAN; ++i) { - if (gate == NI_660X_RTSI_GATE2_SEL(i)) - return NI_GPCT_RTSI_GATE_SELECT(i); + if (gate == NI_660X_RTSI_GATE2_SEL(i)) { + source = NI_GPCT_RTSI_GATE_SELECT(i); + break; + } } + if (i <= NI_660X_MAX_RTSI_CHAN) + break; for (i = 0; i <= NI_660X_MAX_UP_DOWN_PIN; ++i) { - if (gate == NI_660X_UD_PIN_GATE2_SEL(i)) - return NI_GPCT_UP_DOWN_PIN_GATE_SELECT(i); + if (gate == NI_660X_UD_PIN_GATE2_SEL(i)) { + source = NI_GPCT_UP_DOWN_PIN_GATE_SELECT(i); + break; + } } - BUG(); - break; + if (i <= NI_660X_MAX_UP_DOWN_PIN) + break; + return -EINVAL; } + *src = source; return 0; }; -static unsigned int ni_m_gate2_to_generic_gate(unsigned int gate) +static int ni_m_gate2_to_generic_gate(unsigned int gate, unsigned int *src) { /* * FIXME: the second gate sources for the m series are undocumented, * so we just return the raw bits for now. */ - switch (gate) { - default: - return gate; - } + *src = gate; return 0; }; @@ -1184,6 +1227,7 @@ static int ni_tio_get_gate_src(struct ni_gpct *counter, unsigned int gate_index, unsigned int mode; unsigned int reg; unsigned int gate; + int ret; mode = ni_tio_get_soft_copy(counter, NITIO_MODE_REG(cidx)); if (((mode & GI_GATING_MODE_MASK) == GI_GATING_DISABLED) || @@ -1202,12 +1246,14 @@ static int ni_tio_get_gate_src(struct ni_gpct *counter, unsigned int gate_index, case ni_gpct_variant_e_series: case ni_gpct_variant_m_series: default: - *gate_source = ni_m_gate_to_generic_gate(gate); + ret = ni_m_gate_to_generic_gate(gate, gate_source); break; case ni_gpct_variant_660x: - *gate_source = ni_660x_gate_to_generic_gate(gate); + ret = ni_660x_gate_to_generic_gate(gate, gate_source); break; } + if (ret) + return ret; if (mode & GI_GATE_POL_INVERT) *gate_source |= CR_INVERT; if ((mode & GI_GATING_MODE_MASK) != GI_LEVEL_GATING) @@ -1221,12 +1267,14 @@ static int ni_tio_get_gate_src(struct ni_gpct *counter, unsigned int gate_index, case ni_gpct_variant_e_series: case ni_gpct_variant_m_series: default: - *gate_source = ni_m_gate2_to_generic_gate(gate); + ret = ni_m_gate2_to_generic_gate(gate, gate_source); break; case ni_gpct_variant_660x: - *gate_source = ni_660x_gate2_to_generic_gate(gate); + ret = ni_660x_gate2_to_generic_gate(gate, gate_source); break; } + if (ret) + return ret; if (counter_dev->regs[reg] & GI_GATE2_POL_INVERT) *gate_source |= CR_INVERT; /* second gate can't have edge/level mode set independently */ -- cgit v0.10.2 From 592ef9fb8d7e5deb359b02530c5bb0d0b717cfef Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:37:02 -0700 Subject: staging: comedi: ni_tio: fix ni_tio_insn_config() The (*insn_config) functions are supposed to return an errno or the number of 'data' values used for the instruction (insn->n). Currently this function returns an errno or 0. Fix the function to work like the core expects. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 51dd368..10d4585 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -1295,15 +1295,18 @@ int ni_tio_insn_config(struct comedi_device *dev, struct ni_gpct *counter = s->private; unsigned int cidx = counter->counter_index; unsigned int status; + int ret = 0; switch (data[0]) { case INSN_CONFIG_SET_COUNTER_MODE: - return ni_tio_set_counter_mode(counter, data[1]); + ret = ni_tio_set_counter_mode(counter, data[1]); + break; case INSN_CONFIG_ARM: - return ni_tio_arm(counter, true, data[1]); + ret = ni_tio_arm(counter, true, data[1]); + break; case INSN_CONFIG_DISARM: - ni_tio_arm(counter, false, 0); - return 0; + ret = ni_tio_arm(counter, false, 0); + break; case INSN_CONFIG_GET_COUNTER_STATUS: data[1] = 0; status = ni_tio_read(counter, NITIO_SHARED_STATUS_REG(cidx)); @@ -1313,25 +1316,29 @@ int ni_tio_insn_config(struct comedi_device *dev, data[1] |= COMEDI_COUNTER_COUNTING; } data[2] = COMEDI_COUNTER_ARMED | COMEDI_COUNTER_COUNTING; - return 0; + break; case INSN_CONFIG_SET_CLOCK_SRC: - return ni_tio_set_clock_src(counter, data[1], data[2]); + ret = ni_tio_set_clock_src(counter, data[1], data[2]); + break; case INSN_CONFIG_GET_CLOCK_SRC: ni_tio_get_clock_src(counter, &data[1], &data[2]); - return 0; + break; case INSN_CONFIG_SET_GATE_SRC: - return ni_tio_set_gate_src(counter, data[1], data[2]); + ret = ni_tio_set_gate_src(counter, data[1], data[2]); + break; case INSN_CONFIG_GET_GATE_SRC: - return ni_tio_get_gate_src(counter, data[1], &data[2]); + ret = ni_tio_get_gate_src(counter, data[1], &data[2]); + break; case INSN_CONFIG_SET_OTHER_SRC: - return ni_tio_set_other_src(counter, data[1], data[2]); + ret = ni_tio_set_other_src(counter, data[1], data[2]); + break; case INSN_CONFIG_RESET: ni_tio_reset_count_and_disarm(counter); - return 0; - default: break; + default: + return -EINVAL; } - return -EINVAL; + return ret ? ret : insn->n; } EXPORT_SYMBOL_GPL(ni_tio_insn_config); -- cgit v0.10.2 From fa74d136fda8512a17918fc5f97a72acd05c22e3 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:37:03 -0700 Subject: staging: comedi: ni_tio: remove BUG() in ni_tio_set_gate_src() This BUG() can never happen. The previous ni_tio_has_gate2_registers() check will have already caused the function to return -EINVAL. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 10d4585..9ce3a9a 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -1020,8 +1020,7 @@ int ni_tio_set_gate_src(struct ni_gpct *counter, case ni_gpct_variant_660x: return ni_660x_set_gate2(counter, src); default: - BUG(); - break; + return -EINVAL; } break; default: -- cgit v0.10.2 From b42ca86ad605eb3e3f26618eed35ac6ff7435964 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 23 Mar 2016 15:37:04 -0700 Subject: staging: comedi: ni_tio: remove BUG() checks for ni_tio_get_clock_src() This function calls some helper functions to convert the counter variant specific clock select bits into the generic enum ni_gpct_clock_source_bits equivelent. These helper functions currently BUG() if the clock select bits are invalid. It then calls ni_tio_clock_period_ps() to figure out the clock period based on the generic clock source. This function could also BUG() if the prescale bits are invalid. In reality this should never happen but refactor the code to return -EINVAL instead and remove the BUG() checks. These functions are also called by ni_tio_set_sync_mode(). When this function is called by ni_tio_set_clock_src() the counter select bits have already been validated. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 9ce3a9a..7043eb0 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -183,8 +183,9 @@ static void ni_tio_reset_count_and_disarm(struct ni_gpct *counter) ni_tio_write(counter, GI_RESET(cidx), NITIO_RESET_REG(cidx)); } -static u64 ni_tio_clock_period_ps(const struct ni_gpct *counter, - unsigned int generic_clock_source) +static int ni_tio_clock_period_ps(const struct ni_gpct *counter, + unsigned int generic_clock_source, + u64 *period_ps) { u64 clock_period_ps; @@ -219,10 +220,10 @@ static u64 ni_tio_clock_period_ps(const struct ni_gpct *counter, clock_period_ps *= 8; break; default: - BUG(); - break; + return -EINVAL; } - return clock_period_ps; + *period_ps = clock_period_ps; + return 0; } static void ni_tio_set_bits_transient(struct ni_gpct *counter, @@ -304,7 +305,8 @@ static unsigned int ni_tio_clock_src_modifiers(const struct ni_gpct *counter) return bits; } -static unsigned int ni_m_series_clock_src_select(const struct ni_gpct *counter) +static int ni_m_series_clock_src_select(const struct ni_gpct *counter, + unsigned int *clk_src) { struct ni_gpct_device *counter_dev = counter->counter_dev; unsigned int cidx = counter->counter_index; @@ -362,14 +364,15 @@ static unsigned int ni_m_series_clock_src_select(const struct ni_gpct *counter) } if (i <= NI_M_MAX_PFI_CHAN) break; - BUG(); - break; + return -EINVAL; } clock_source |= ni_tio_clock_src_modifiers(counter); - return clock_source; + *clk_src = clock_source; + return 0; } -static unsigned int ni_660x_clock_src_select(const struct ni_gpct *counter) +static int ni_660x_clock_src_select(const struct ni_gpct *counter, + unsigned int *clk_src) { unsigned int clock_source = 0; unsigned int cidx = counter->counter_index; @@ -419,23 +422,23 @@ static unsigned int ni_660x_clock_src_select(const struct ni_gpct *counter) } if (i <= NI_660X_MAX_SRC_PIN) break; - BUG(); - break; + return -EINVAL; } clock_source |= ni_tio_clock_src_modifiers(counter); - return clock_source; + *clk_src = clock_source; + return 0; } -static unsigned int -ni_tio_generic_clock_src_select(const struct ni_gpct *counter) +static int ni_tio_generic_clock_src_select(const struct ni_gpct *counter, + unsigned int *clk_src) { switch (counter->counter_dev->variant) { case ni_gpct_variant_e_series: case ni_gpct_variant_m_series: default: - return ni_m_series_clock_src_select(counter); + return ni_m_series_clock_src_select(counter, clk_src); case ni_gpct_variant_660x: - return ni_660x_clock_src_select(counter); + return ni_660x_clock_src_select(counter, clk_src); } } @@ -448,6 +451,7 @@ static void ni_tio_set_sync_mode(struct ni_gpct *counter) unsigned int bits = 0; unsigned int reg; unsigned int mode; + unsigned int clk_src; u64 ps; bool force_alt_sync; @@ -478,8 +482,8 @@ static void ni_tio_set_sync_mode(struct ni_gpct *counter) break; } - ps = ni_tio_clock_period_ps(counter, - ni_tio_generic_clock_src_select(counter)); + ni_tio_generic_clock_src_select(counter, &clk_src); + ni_tio_clock_period_ps(counter, clk_src, &ps); /* * It's not clear what we should do if clock_period is unknown, so we @@ -800,16 +804,22 @@ static int ni_tio_set_clock_src(struct ni_gpct *counter, return 0; } -static void ni_tio_get_clock_src(struct ni_gpct *counter, - unsigned int *clock_source, - unsigned int *period_ns) +static int ni_tio_get_clock_src(struct ni_gpct *counter, + unsigned int *clock_source, + unsigned int *period_ns) { u64 temp64; + int ret; - *clock_source = ni_tio_generic_clock_src_select(counter); - temp64 = ni_tio_clock_period_ps(counter, *clock_source); + ret = ni_tio_generic_clock_src_select(counter, clock_source); + if (ret) + return ret; + ret = ni_tio_clock_period_ps(counter, *clock_source, &temp64); + if (ret) + return ret; do_div(temp64, 1000); /* ps to ns */ *period_ns = temp64; + return 0; } static int ni_660x_set_gate(struct ni_gpct *counter, unsigned int gate_source) @@ -1320,7 +1330,7 @@ int ni_tio_insn_config(struct comedi_device *dev, ret = ni_tio_set_clock_src(counter, data[1], data[2]); break; case INSN_CONFIG_GET_CLOCK_SRC: - ni_tio_get_clock_src(counter, &data[1], &data[2]); + ret = ni_tio_get_clock_src(counter, &data[1], &data[2]); break; case INSN_CONFIG_SET_GATE_SRC: ret = ni_tio_set_gate_src(counter, data[1], data[2]); -- cgit v0.10.2 From ff59f2a6d44e4c96cd56e8b12c5678ef85a3b576 Mon Sep 17 00:00:00 2001 From: Okash Khawaja Date: Thu, 10 Mar 2016 20:21:35 +0000 Subject: staging: speakup: fix type mismatch warnings Compiling speakup driver with sparse produces following warning: drivers/staging/speakup/serialio.c:22:9: warning: incorrect type in initializer (different base types) drivers/staging/speakup/serialio.c:22:9: expected unsigned int [unsigned] flags drivers/staging/speakup/serialio.c:22:9: got restricted upf_t This patch fixes it. Signed-off-by: Okash Khawaja Acked-by: Samuel Thibault Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/speakup/serialio.h b/drivers/staging/speakup/serialio.h index 1b39921..3ad7ff0 100644 --- a/drivers/staging/speakup/serialio.h +++ b/drivers/staging/speakup/serialio.h @@ -6,6 +6,7 @@ #ifndef __sparc__ #include #endif +#include /* * this is cut&paste from 8250.h. Get rid of the structure, the definitions @@ -16,7 +17,7 @@ struct old_serial_port { unsigned int baud_base; unsigned int port; unsigned int irq; - unsigned int flags; /* unused */ + upf_t flags; /* unused */ }; /* countdown values for serial timeouts in us */ -- cgit v0.10.2 From 29efdd3d68fe91f5921e27bce79017e46a5fd57c Mon Sep 17 00:00:00 2001 From: PrasannaKumar Muralidharan Date: Wed, 23 Mar 2016 12:58:28 +0530 Subject: Staging: most: Remove __cplusplus check in header files Remove unnecessary __cplusplus check in header files as it is not required. Signed-off-by: PrasannaKumar Muralidharan Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/most/hdm-dim2/dim2_errors.h b/drivers/staging/most/hdm-dim2/dim2_errors.h index 5a713df..66343ba 100644 --- a/drivers/staging/most/hdm-dim2/dim2_errors.h +++ b/drivers/staging/most/hdm-dim2/dim2_errors.h @@ -15,10 +15,6 @@ #ifndef _MOST_DIM_ERRORS_H #define _MOST_DIM_ERRORS_H -#ifdef __cplusplus -extern "C" { -#endif - /** * MOST DIM errors. */ @@ -58,8 +54,4 @@ enum dim_errors_t { DIM_ERR_OVERFLOW, }; -#ifdef __cplusplus -} -#endif - #endif /* _MOST_DIM_ERRORS_H */ diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.h b/drivers/staging/most/hdm-dim2/dim2_hal.h index 9f8e880..1c924e8 100644 --- a/drivers/staging/most/hdm-dim2/dim2_hal.h +++ b/drivers/staging/most/hdm-dim2/dim2_hal.h @@ -18,10 +18,6 @@ #include #include "dim2_reg.h" -#ifdef __cplusplus -extern "C" { -#endif - /* * The values below are specified in the hardware specification. * So, they should not be changed until the hardware specification changes. @@ -108,8 +104,4 @@ void dimcb_io_write(u32 __iomem *ptr32, u32 value); void dimcb_on_error(u8 error_id, const char *error_message); -#ifdef __cplusplus -} -#endif - #endif /* _DIM2_HAL_H */ diff --git a/drivers/staging/most/hdm-dim2/dim2_reg.h b/drivers/staging/most/hdm-dim2/dim2_reg.h index bcf6a79..e0837b6 100644 --- a/drivers/staging/most/hdm-dim2/dim2_reg.h +++ b/drivers/staging/most/hdm-dim2/dim2_reg.h @@ -17,10 +17,6 @@ #include -#ifdef __cplusplus -extern "C" { -#endif - struct dim2_regs { /* 0x00 */ u32 MLBC0; /* 0x01 */ u32 rsvd0[1]; @@ -166,8 +162,4 @@ enum { CAT_CL_MASK = DIM2_MASK(6) }; -#ifdef __cplusplus -} -#endif - #endif /* DIM2_OS62420_H */ -- cgit v0.10.2 From 87787e5ef727ff15f7c552cc48823b469f2eb41b Mon Sep 17 00:00:00 2001 From: Ksenija Stanojevic Date: Wed, 23 Mar 2016 12:06:34 +0100 Subject: Staging: iio: Fix sparse endian warning Fix following sparse warning: warning: cast to restricted __be16 Signed-off-by: Ksenija Stanojevic Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/iio/adc/ad7606_spi.c b/drivers/staging/iio/adc/ad7606_spi.c index d873a51..825da07 100644 --- a/drivers/staging/iio/adc/ad7606_spi.c +++ b/drivers/staging/iio/adc/ad7606_spi.c @@ -21,7 +21,8 @@ static int ad7606_spi_read_block(struct device *dev, { struct spi_device *spi = to_spi_device(dev); int i, ret; - unsigned short *data = buf; + unsigned short *data; + __be16 *bdata = buf; ret = spi_read(spi, buf, count * 2); if (ret < 0) { @@ -30,7 +31,7 @@ static int ad7606_spi_read_block(struct device *dev, } for (i = 0; i < count; i++) - data[i] = be16_to_cpu(data[i]); + data[i] = be16_to_cpu(bdata[i]); return 0; } -- cgit v0.10.2 From 80e3e241fa56312f7a837b7e4781ecffed0b8db6 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Wed, 23 Mar 2016 20:54:36 +0900 Subject: staging: dgnc: fix CamelCase in dgnc_driver.c fix checkpatch.pl warning about CamelCase. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c index 4eb410e..af2e835 100644 --- a/drivers/staging/dgnc/dgnc_driver.c +++ b/drivers/staging/dgnc/dgnc_driver.c @@ -48,7 +48,7 @@ static void dgnc_do_remap(struct dgnc_board *brd); /* * File operations permitted on Control/Management major. */ -static const struct file_operations dgnc_BoardFops = { +static const struct file_operations dgnc_board_fops = { .owner = THIS_MODULE, .unlocked_ioctl = dgnc_mgmt_ioctl, .open = dgnc_mgmt_open, @@ -58,11 +58,11 @@ static const struct file_operations dgnc_BoardFops = { /* * Globals */ -uint dgnc_NumBoards; -struct dgnc_board *dgnc_Board[MAXBOARDS]; +uint dgnc_num_boards; +struct dgnc_board *dgnc_board[MAXBOARDS]; DEFINE_SPINLOCK(dgnc_global_lock); DEFINE_SPINLOCK(dgnc_poll_lock); /* Poll scheduling lock */ -uint dgnc_Major; +uint dgnc_major; int dgnc_poll_tick = 20; /* Poll interval - 20 ms */ /* @@ -92,7 +92,7 @@ struct board_id { unsigned int is_pci_express; }; -static struct board_id dgnc_Ids[] = { +static struct board_id dgnc_ids[] = { { PCI_DEVICE_CLASSIC_4_PCI_NAME, 4, 0 }, { PCI_DEVICE_CLASSIC_4_422_PCI_NAME, 4, 0 }, { PCI_DEVICE_CLASSIC_8_PCI_NAME, 8, 0 }, @@ -140,14 +140,14 @@ static void cleanup(bool sysfiles) if (sysfiles) dgnc_remove_driver_sysfiles(&dgnc_driver); - device_destroy(dgnc_class, MKDEV(dgnc_Major, 0)); + device_destroy(dgnc_class, MKDEV(dgnc_major, 0)); class_destroy(dgnc_class); - unregister_chrdev(dgnc_Major, "dgnc"); + unregister_chrdev(dgnc_major, "dgnc"); - for (i = 0; i < dgnc_NumBoards; ++i) { - dgnc_remove_ports_sysfiles(dgnc_Board[i]); - dgnc_tty_uninit(dgnc_Board[i]); - dgnc_cleanup_board(dgnc_Board[i]); + for (i = 0; i < dgnc_num_boards; ++i) { + dgnc_remove_ports_sysfiles(dgnc_board[i]); + dgnc_tty_uninit(dgnc_board[i]); + dgnc_cleanup_board(dgnc_board[i]); } dgnc_tty_post_uninit(); @@ -217,12 +217,12 @@ static int dgnc_start(void) * * Register management/dpa devices */ - rc = register_chrdev(0, "dgnc", &dgnc_BoardFops); + rc = register_chrdev(0, "dgnc", &dgnc_board_fops); if (rc < 0) { pr_err(DRVSTR ": Can't register dgnc driver device (%d)\n", rc); return rc; } - dgnc_Major = rc; + dgnc_major = rc; dgnc_class = class_create(THIS_MODULE, "dgnc_mgmt"); if (IS_ERR(dgnc_class)) { @@ -232,7 +232,7 @@ static int dgnc_start(void) } dev = device_create(dgnc_class, NULL, - MKDEV(dgnc_Major, 0), + MKDEV(dgnc_major, 0), NULL, "dgnc_mgmt"); if (IS_ERR(dev)) { rc = PTR_ERR(dev); @@ -262,11 +262,11 @@ static int dgnc_start(void) return 0; failed_tty: - device_destroy(dgnc_class, MKDEV(dgnc_Major, 0)); + device_destroy(dgnc_class, MKDEV(dgnc_major, 0)); failed_device: class_destroy(dgnc_class); failed_class: - unregister_chrdev(dgnc_Major, "dgnc"); + unregister_chrdev(dgnc_major, "dgnc"); return rc; } @@ -283,7 +283,7 @@ static int dgnc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) rc = dgnc_found_board(pdev, ent->driver_data); if (rc == 0) - dgnc_NumBoards++; + dgnc_num_boards++; return rc; } @@ -346,7 +346,7 @@ static void dgnc_cleanup_board(struct dgnc_board *brd) } } - dgnc_Board[brd->boardnum] = NULL; + dgnc_board[brd->boardnum] = NULL; kfree(brd); } @@ -365,8 +365,8 @@ static int dgnc_found_board(struct pci_dev *pdev, int id) unsigned long flags; /* get the board structure and prep it */ - dgnc_Board[dgnc_NumBoards] = kzalloc(sizeof(*brd), GFP_KERNEL); - brd = dgnc_Board[dgnc_NumBoards]; + dgnc_board[dgnc_num_boards] = kzalloc(sizeof(*brd), GFP_KERNEL); + brd = dgnc_board[dgnc_num_boards]; if (!brd) return -ENOMEM; @@ -382,15 +382,15 @@ static int dgnc_found_board(struct pci_dev *pdev, int id) /* store the info for the board we've found */ brd->magic = DGNC_BOARD_MAGIC; - brd->boardnum = dgnc_NumBoards; + brd->boardnum = dgnc_num_boards; brd->vendor = dgnc_pci_tbl[id].vendor; brd->device = dgnc_pci_tbl[id].device; brd->pdev = pdev; brd->pci_bus = pdev->bus->number; brd->pci_slot = PCI_SLOT(pdev->devfn); - brd->name = dgnc_Ids[id].name; - brd->maxports = dgnc_Ids[id].maxports; - if (dgnc_Ids[i].is_pci_express) + brd->name = dgnc_ids[id].name; + brd->maxports = dgnc_ids[id].maxports; + if (dgnc_ids[i].is_pci_express) brd->bd_flags |= BD_IS_PCI_EXPRESS; brd->dpastatus = BD_NOFEP; init_waitqueue_head(&brd->state_wait); @@ -642,8 +642,8 @@ static void dgnc_poll_handler(ulong dummy) unsigned long new_time; /* Go thru each board, kicking off a tasklet for each if needed */ - for (i = 0; i < dgnc_NumBoards; i++) { - brd = dgnc_Board[i]; + for (i = 0; i < dgnc_num_boards; i++) { + brd = dgnc_board[i]; spin_lock_irqsave(&brd->bd_lock, flags); diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h index 953c891..f3d00df 100644 --- a/drivers/staging/dgnc/dgnc_driver.h +++ b/drivers/staging/dgnc/dgnc_driver.h @@ -399,12 +399,12 @@ struct channel_t { /* * Our Global Variables. */ -extern uint dgnc_Major; /* Our driver/mgmt major */ +extern uint dgnc_major; /* Our driver/mgmt major */ extern int dgnc_poll_tick; /* Poll interval - 20 ms */ extern spinlock_t dgnc_global_lock; /* Driver global spinlock */ extern spinlock_t dgnc_poll_lock; /* Poll scheduling lock */ -extern uint dgnc_NumBoards; /* Total number of boards */ -extern struct dgnc_board *dgnc_Board[MAXBOARDS]; /* Array of board +extern uint dgnc_num_boards; /* Total number of boards */ +extern struct dgnc_board *dgnc_board[MAXBOARDS]; /* Array of board * structs */ diff --git a/drivers/staging/dgnc/dgnc_mgmt.c b/drivers/staging/dgnc/dgnc_mgmt.c index ba29a8d..683c098 100644 --- a/drivers/staging/dgnc/dgnc_mgmt.c +++ b/drivers/staging/dgnc/dgnc_mgmt.c @@ -111,7 +111,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) spin_lock_irqsave(&dgnc_global_lock, flags); memset(&ddi, 0, sizeof(ddi)); - ddi.dinfo_nboards = dgnc_NumBoards; + ddi.dinfo_nboards = dgnc_num_boards; sprintf(ddi.dinfo_version, "%s", DG_PART); spin_unlock_irqrestore(&dgnc_global_lock, flags); @@ -131,27 +131,27 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (copy_from_user(&brd, uarg, sizeof(int))) return -EFAULT; - if (brd < 0 || brd >= dgnc_NumBoards) + if (brd < 0 || brd >= dgnc_num_boards) return -ENODEV; memset(&di, 0, sizeof(di)); di.info_bdnum = brd; - spin_lock_irqsave(&dgnc_Board[brd]->bd_lock, flags); + spin_lock_irqsave(&dgnc_board[brd]->bd_lock, flags); - di.info_bdtype = dgnc_Board[brd]->dpatype; - di.info_bdstate = dgnc_Board[brd]->dpastatus; + di.info_bdtype = dgnc_board[brd]->dpatype; + di.info_bdstate = dgnc_board[brd]->dpastatus; di.info_ioport = 0; - di.info_physaddr = (ulong)dgnc_Board[brd]->membase; - di.info_physsize = (ulong)dgnc_Board[brd]->membase - - dgnc_Board[brd]->membase_end; - if (dgnc_Board[brd]->state != BOARD_FAILED) - di.info_nports = dgnc_Board[brd]->nasync; + di.info_physaddr = (ulong)dgnc_board[brd]->membase; + di.info_physsize = (ulong)dgnc_board[brd]->membase + - dgnc_board[brd]->membase_end; + if (dgnc_board[brd]->state != BOARD_FAILED) + di.info_nports = dgnc_board[brd]->nasync; else di.info_nports = 0; - spin_unlock_irqrestore(&dgnc_Board[brd]->bd_lock, flags); + spin_unlock_irqrestore(&dgnc_board[brd]->bd_lock, flags); if (copy_to_user(uarg, &di, sizeof(di))) return -EFAULT; @@ -174,14 +174,14 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) channel = ni.channel; /* Verify boundaries on board */ - if (board >= dgnc_NumBoards) + if (board >= dgnc_num_boards) return -ENODEV; /* Verify boundaries on channel */ - if (channel >= dgnc_Board[board]->nasync) + if (channel >= dgnc_board[board]->nasync) return -ENODEV; - ch = dgnc_Board[board]->channels[channel]; + ch = dgnc_board[board]->channels[channel]; if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) return -ENODEV; diff --git a/drivers/staging/dgnc/dgnc_sysfs.c b/drivers/staging/dgnc/dgnc_sysfs.c index 74a0725..d825964 100644 --- a/drivers/staging/dgnc/dgnc_sysfs.c +++ b/drivers/staging/dgnc/dgnc_sysfs.c @@ -33,7 +33,7 @@ static DRIVER_ATTR(version, S_IRUSR, dgnc_driver_version_show, NULL); static ssize_t dgnc_driver_boards_show(struct device_driver *ddp, char *buf) { - return snprintf(buf, PAGE_SIZE, "%d\n", dgnc_NumBoards); + return snprintf(buf, PAGE_SIZE, "%d\n", dgnc_num_boards); } static DRIVER_ATTR(boards, S_IRUSR, dgnc_driver_boards_show, NULL); -- cgit v0.10.2 From f96b36c779f92328bb1c802e6268609191d4449d Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Wed, 23 Mar 2016 20:37:26 +0200 Subject: Staging: wlan-ng: wiphy_free() is not called in case wiphy_register() fails This patch covers wiphy_register() failures in wlan_create_wiphy() from cfg80211.c by calling wiphy_free() for the correspondent struct wiphy allocated structure. Signed-off-by: Claudiu Beznea Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c index 8bad018..ee989d1 100644 --- a/drivers/staging/wlan-ng/cfg80211.c +++ b/drivers/staging/wlan-ng/cfg80211.c @@ -771,8 +771,10 @@ static struct wiphy *wlan_create_wiphy(struct device *dev, wlandevice_t *wlandev wiphy->n_cipher_suites = PRISM2_NUM_CIPHER_SUITES; wiphy->cipher_suites = prism2_cipher_suites; - if (wiphy_register(wiphy) < 0) + if (wiphy_register(wiphy) < 0) { + wiphy_free(wiphy); return NULL; + } return wiphy; } -- cgit v0.10.2 From f72ea988418f3b86d4815f427105c4222622dd41 Mon Sep 17 00:00:00 2001 From: Parth Sane Date: Thu, 24 Mar 2016 01:08:29 +0530 Subject: staging: vt6656: Fixed multiple logical comparisions warnings in main_usb.c Using comparison to false and true is error prone. Fixed multiple warnings as per checkpatch guidelines. Signed-off-by: Parth Sane Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c index f9afab7..5e77496 100644 --- a/drivers/staging/vt6656/main_usb.c +++ b/drivers/staging/vt6656/main_usb.c @@ -238,7 +238,7 @@ static int vnt_init_registers(struct vnt_private *priv) priv->tx_antenna_mode = ANT_B; priv->rx_antenna_sel = 1; - if (priv->tx_rx_ant_inv == true) + if (priv->tx_rx_ant_inv) priv->rx_antenna_mode = ANT_A; else priv->rx_antenna_mode = ANT_B; @@ -248,14 +248,14 @@ static int vnt_init_registers(struct vnt_private *priv) if (antenna & EEP_ANTENNA_AUX) { priv->tx_antenna_mode = ANT_A; - if (priv->tx_rx_ant_inv == true) + if (priv->tx_rx_ant_inv) priv->rx_antenna_mode = ANT_B; else priv->rx_antenna_mode = ANT_A; } else { priv->tx_antenna_mode = ANT_B; - if (priv->tx_rx_ant_inv == true) + if (priv->tx_rx_ant_inv) priv->rx_antenna_mode = ANT_A; else priv->rx_antenna_mode = ANT_B; -- cgit v0.10.2 From e7c77e437b7cbb632a3708ea3a3bb270f4fc4677 Mon Sep 17 00:00:00 2001 From: Nicholas Sim Date: Wed, 23 Mar 2016 22:35:39 +0000 Subject: staging: rtl8188eu: remove return at end of void function call Remove unnecessary return statements from last lines of void function call (several) Signed-off-by: Nicholas Sim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c index 439c035..7f32b39 100644 --- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c +++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c @@ -601,8 +601,6 @@ static void issue_probersp(struct adapter *padapter, unsigned char *da) pattrib->last_txcmdsz = pattrib->pktlen; dump_mgntframe(padapter, pmgntframe); - - return; } static int issue_probereq(struct adapter *padapter, struct ndis_802_11_ssid *pssid, u8 *da, bool wait_ack) @@ -883,8 +881,6 @@ static void issue_auth(struct adapter *padapter, struct sta_info *psta, rtw_wep_encrypt(padapter, (u8 *)pmgntframe); DBG_88E("%s\n", __func__); dump_mgntframe(padapter, pmgntframe); - - return; } @@ -1207,8 +1203,6 @@ exit: rtw_buf_update(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len, (u8 *)pwlanhdr, pattrib->pktlen); else rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len); - - return; } /* when wait_ack is true, this function should be called at process context */ @@ -4326,8 +4320,6 @@ void report_survey_event(struct adapter *padapter, rtw_enqueue_cmd(pcmdpriv, pcmd_obj); pmlmeext->sitesurvey_res.bss_cnt++; - - return; } void report_surveydone_event(struct adapter *padapter) @@ -4371,8 +4363,6 @@ void report_surveydone_event(struct adapter *padapter) DBG_88E("survey done event(%x)\n", psurveydone_evt->bss_cnt); rtw_enqueue_cmd(pcmdpriv, pcmd_obj); - - return; } void report_join_res(struct adapter *padapter, int res) @@ -4423,8 +4413,6 @@ void report_join_res(struct adapter *padapter, int res) rtw_enqueue_cmd(pcmdpriv, pcmd_obj); - - return; } void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr, unsigned short reason) @@ -4480,8 +4468,6 @@ void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr, unsi DBG_88E("report_del_sta_event: delete STA, mac_id =%d\n", mac_id); rtw_enqueue_cmd(pcmdpriv, pcmd_obj); - - return; } void report_add_sta_event(struct adapter *padapter, unsigned char *MacAddr, int cam_idx) @@ -4526,8 +4512,6 @@ void report_add_sta_event(struct adapter *padapter, unsigned char *MacAddr, int DBG_88E("report_add_sta_event: add STA\n"); rtw_enqueue_cmd(pcmdpriv, pcmd_obj); - - return; } @@ -4963,7 +4947,6 @@ void link_timer_hdl(unsigned long data) issue_assocreq(padapter); set_link_timer(pmlmeext, REASSOC_TO); } - return; } void addba_timer_hdl(unsigned long data) -- cgit v0.10.2 From 26b694323637be61be89d391c1713d85d66b457d Mon Sep 17 00:00:00 2001 From: Nicholas Sim Date: Wed, 23 Mar 2016 23:02:24 +0000 Subject: staging: xgifb: ensure braces on all arms of if stmt Added braces on else arm of if statement where if arm already has braces as suggested for clarity in Documentation/CodingStyle Signed-off-by: Nicholas Sim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c index f97c77d..14230c2 100644 --- a/drivers/staging/xgifb/vb_setmode.c +++ b/drivers/staging/xgifb/vb_setmode.c @@ -3450,8 +3450,9 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex, if (!(pVBInfo->TVInfo & (TVSetYPbPr525p | TVSetYPbPr750p))) tempbx >>= 1; - } else + } else { tempbx >>= 1; + } } tempbx -= 2; -- cgit v0.10.2 From aaeb5e7f03e97770fe7a0dc122854287ab020f19 Mon Sep 17 00:00:00 2001 From: Nicholas Sim Date: Wed, 23 Mar 2016 23:02:59 +0000 Subject: staging: xgifb: remove extra braces from if stmt (single branch) Remove braces from one branch of if statement where both branches only have a single line of code, as suggested in Documentation/CodingStyle Signed-off-by: Nicholas Sim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c index 14230c2..40939c8 100644 --- a/drivers/staging/xgifb/vb_setmode.c +++ b/drivers/staging/xgifb/vb_setmode.c @@ -3840,9 +3840,9 @@ static void XGI_SetLCDRegs(unsigned short ModeIdIndex, if (pVBInfo->VGAVDE == 525) { if (pVBInfo->VBType & (VB_SIS301B | VB_SIS302B | VB_SIS301LV | VB_SIS302LV - | VB_XGI301C)) { + | VB_XGI301C)) temp = 0xC6; - } else + else temp = 0xC4; xgifb_reg_set(pVBInfo->Part2Port, 0x2f, temp); @@ -3852,9 +3852,9 @@ static void XGI_SetLCDRegs(unsigned short ModeIdIndex, if (pVBInfo->VGAVDE == 420) { if (pVBInfo->VBType & (VB_SIS301B | VB_SIS302B | VB_SIS301LV | VB_SIS302LV - | VB_XGI301C)) { + | VB_XGI301C)) temp = 0x4F; - } else + else temp = 0x4E; xgifb_reg_set(pVBInfo->Part2Port, 0x2f, temp); } -- cgit v0.10.2 From a25ad52020b5cde0121830733890c06d3cc2e656 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Thu, 24 Mar 2016 15:10:43 +0900 Subject: staging: dgnc: fix CamelCase in dgnc_drvier.h and fix checkpatch.pl warning about CamelCase Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h index f3d00df..3d8e15f 100644 --- a/drivers/staging/dgnc/dgnc_driver.h +++ b/drivers/staging/dgnc/dgnc_driver.h @@ -203,15 +203,15 @@ struct dgnc_board { */ struct tty_driver serial_driver; - char SerialName[200]; + char serial_name[200]; struct tty_driver print_driver; - char PrintName[200]; + char print_name[200]; - bool dgnc_Major_Serial_Registered; - bool dgnc_Major_TransparentPrint_Registered; + bool dgnc_major_serial_registered; + bool dgnc_major_transparent_print_registered; - uint dgnc_Serial_Major; - uint dgnc_TransparentPrint_Major; + uint dgnc_serial_major; + uint dgnc_transparent_print_major; uint TtyRefCnt; diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 081ac75..98b88d1 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -180,9 +180,9 @@ int dgnc_tty_register(struct dgnc_board *brd) brd->serial_driver.magic = TTY_DRIVER_MAGIC; - snprintf(brd->SerialName, MAXTTYNAMELEN, "tty_dgnc_%d_", brd->boardnum); + snprintf(brd->serial_name, MAXTTYNAMELEN, "tty_dgnc_%d_", brd->boardnum); - brd->serial_driver.name = brd->SerialName; + brd->serial_driver.name = brd->serial_name; brd->serial_driver.name_base = 0; brd->serial_driver.major = 0; brd->serial_driver.minor_start = 0; @@ -218,7 +218,7 @@ int dgnc_tty_register(struct dgnc_board *brd) */ tty_set_operations(&brd->serial_driver, &dgnc_tty_ops); - if (!brd->dgnc_Major_Serial_Registered) { + if (!brd->dgnc_major_serial_registered) { /* Register tty devices */ rc = tty_register_driver(&brd->serial_driver); if (rc < 0) { @@ -226,7 +226,7 @@ int dgnc_tty_register(struct dgnc_board *brd) "Can't register tty device (%d)\n", rc); return rc; } - brd->dgnc_Major_Serial_Registered = true; + brd->dgnc_major_serial_registered = true; } /* @@ -235,9 +235,9 @@ int dgnc_tty_register(struct dgnc_board *brd) * we are when we get into the dgnc_tty_open() routine. */ brd->print_driver.magic = TTY_DRIVER_MAGIC; - snprintf(brd->PrintName, MAXTTYNAMELEN, "pr_dgnc_%d_", brd->boardnum); + snprintf(brd->print_name, MAXTTYNAMELEN, "pr_dgnc_%d_", brd->boardnum); - brd->print_driver.name = brd->PrintName; + brd->print_driver.name = brd->print_name; brd->print_driver.name_base = 0; brd->print_driver.major = brd->serial_driver.major; brd->print_driver.minor_start = 0x80; @@ -273,7 +273,7 @@ int dgnc_tty_register(struct dgnc_board *brd) */ tty_set_operations(&brd->print_driver, &dgnc_tty_ops); - if (!brd->dgnc_Major_TransparentPrint_Registered) { + if (!brd->dgnc_major_transparent_print_registered) { /* Register Transparent Print devices */ rc = tty_register_driver(&brd->print_driver); if (rc < 0) { @@ -282,12 +282,12 @@ int dgnc_tty_register(struct dgnc_board *brd) rc); return rc; } - brd->dgnc_Major_TransparentPrint_Registered = true; + brd->dgnc_major_transparent_print_registered = true; } dgnc_BoardsByMajor[brd->serial_driver.major] = brd; - brd->dgnc_Serial_Major = brd->serial_driver.major; - brd->dgnc_TransparentPrint_Major = brd->print_driver.major; + brd->dgnc_serial_major = brd->serial_driver.major; + brd->dgnc_transparent_print_major = brd->print_driver.major; return rc; } @@ -407,9 +407,9 @@ void dgnc_tty_uninit(struct dgnc_board *brd) { int i = 0; - if (brd->dgnc_Major_Serial_Registered) { + if (brd->dgnc_major_serial_registered) { dgnc_BoardsByMajor[brd->serial_driver.major] = NULL; - brd->dgnc_Serial_Major = 0; + brd->dgnc_serial_major = 0; for (i = 0; i < brd->nasync; i++) { if (brd->channels[i]) dgnc_remove_tty_sysfs(brd->channels[i]-> @@ -417,12 +417,12 @@ void dgnc_tty_uninit(struct dgnc_board *brd) tty_unregister_device(&brd->serial_driver, i); } tty_unregister_driver(&brd->serial_driver); - brd->dgnc_Major_Serial_Registered = false; + brd->dgnc_major_serial_registered = false; } - if (brd->dgnc_Major_TransparentPrint_Registered) { + if (brd->dgnc_major_transparent_print_registered) { dgnc_BoardsByMajor[brd->print_driver.major] = NULL; - brd->dgnc_TransparentPrint_Major = 0; + brd->dgnc_transparent_print_major = 0; for (i = 0; i < brd->nasync; i++) { if (brd->channels[i]) dgnc_remove_tty_sysfs(brd->channels[i]-> @@ -430,7 +430,7 @@ void dgnc_tty_uninit(struct dgnc_board *brd) tty_unregister_device(&brd->print_driver, i); } tty_unregister_driver(&brd->print_driver); - brd->dgnc_Major_TransparentPrint_Registered = false; + brd->dgnc_major_transparent_print_registered = false; } kfree(brd->serial_driver.ttys); -- cgit v0.10.2 From 195d85c1a0b37c2dd231980528d46100f35f9a0c Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Thu, 24 Mar 2016 15:11:08 +0900 Subject: staging: dgnc: remove unused variable in dgnc_board TtyRefCnt was not used anywhere in dgnc. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h index 3d8e15f..44216ae 100644 --- a/drivers/staging/dgnc/dgnc_driver.h +++ b/drivers/staging/dgnc/dgnc_driver.h @@ -213,8 +213,6 @@ struct dgnc_board { uint dgnc_serial_major; uint dgnc_transparent_print_major; - uint TtyRefCnt; - u16 dpatype; /* The board "type", * as defined by DPA */ -- cgit v0.10.2 From 6175e73deeba06365eae1758d964a4e37d8db627 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Fri, 25 Mar 2016 11:44:06 +0900 Subject: staging: dgnc: fix 'line over 80 characters' fix checkpatch.pl warning about 'line over 80 characters' in dgnc_neo.c Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index 31ac437..10b596f 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -77,7 +77,8 @@ struct board_ops dgnc_neo_ops = { .send_immediate_char = neo_send_immediate_char }; -static uint dgnc_offset_table[8] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 }; +static uint dgnc_offset_table[8] = { 0x01, 0x02, 0x04, 0x08, + 0x10, 0x20, 0x40, 0x80 }; /* * This function allows calls to ensure that all outstanding @@ -116,7 +117,8 @@ static inline void neo_set_cts_flow_control(struct channel_t *ch) writeb(efr, &ch->ch_neo_uart->efr); /* Turn on table D, with 8 char hi/low watermarks */ - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), &ch->ch_neo_uart->fctr); + writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), + &ch->ch_neo_uart->fctr); /* Feed the UART our trigger levels */ writeb(8, &ch->ch_neo_uart->tfifo); @@ -150,7 +152,8 @@ static inline void neo_set_rts_flow_control(struct channel_t *ch) /* Turn on UART enhanced bits */ writeb(efr, &ch->ch_neo_uart->efr); - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), &ch->ch_neo_uart->fctr); + writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), + &ch->ch_neo_uart->fctr); ch->ch_r_watermark = 4; writeb(32, &ch->ch_neo_uart->rfifo); @@ -187,7 +190,8 @@ static inline void neo_set_ixon_flow_control(struct channel_t *ch) /* Turn on UART enhanced bits */ writeb(efr, &ch->ch_neo_uart->efr); - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); + writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), + &ch->ch_neo_uart->fctr); ch->ch_r_watermark = 4; writeb(32, &ch->ch_neo_uart->rfifo); @@ -225,7 +229,8 @@ static inline void neo_set_ixoff_flow_control(struct channel_t *ch) writeb(efr, &ch->ch_neo_uart->efr); /* Turn on table D, with 8 char hi/low watermarks */ - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); + writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), + &ch->ch_neo_uart->fctr); writeb(8, &ch->ch_neo_uart->tfifo); ch->ch_t_tlevel = 8; @@ -265,7 +270,8 @@ static inline void neo_set_no_input_flow_control(struct channel_t *ch) writeb(efr, &ch->ch_neo_uart->efr); /* Turn on table D, with 8 char hi/low watermarks */ - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); + writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), + &ch->ch_neo_uart->fctr); ch->ch_r_watermark = 0; @@ -302,7 +308,8 @@ static inline void neo_set_no_output_flow_control(struct channel_t *ch) writeb(efr, &ch->ch_neo_uart->efr); /* Turn on table D, with 8 char hi/low watermarks */ - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); + writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), + &ch->ch_neo_uart->fctr); ch->ch_r_watermark = 0; @@ -321,7 +328,8 @@ static inline void neo_set_no_output_flow_control(struct channel_t *ch) static inline void neo_set_new_start_stop_chars(struct channel_t *ch) { /* if hardware flow control is set, then skip this whole thing */ - if (ch->ch_digi.digi_flags & (CTSPACE | RTSPACE) || ch->ch_c_cflag & CRTSCTS) + if (ch->ch_digi.digi_flags & (CTSPACE | RTSPACE) || + ch->ch_c_cflag & CRTSCTS) return; /* Tell UART what start/stop chars it should be looking for */ @@ -393,7 +401,8 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port) break; /* - * Yank off the upper 2 bits, which just show that the FIFO's are enabled. + * Yank off the upper 2 bits, + * which just show that the FIFO's are enabled. */ isr &= ~(UART_17158_IIR_FIFO_ENABLED); @@ -666,7 +675,8 @@ static void neo_param(struct tty_struct *tty) }; /* Only use the TXPrint baud rate if the terminal unit is NOT open */ - if (!(ch->ch_tun.un_flags & UN_ISOPEN) && (un->un_type == DGNC_PRINT)) + if (!(ch->ch_tun.un_flags & UN_ISOPEN) && + (un->un_type == DGNC_PRINT)) baud = C_BAUD(ch->ch_pun.un_tty) & 0xff; else baud = C_BAUD(ch->ch_tun.un_tty) & 0xff; @@ -679,7 +689,8 @@ static void neo_param(struct tty_struct *tty) jindex = baud; - if ((iindex >= 0) && (iindex < 4) && (jindex >= 0) && (jindex < 16)) + if ((iindex >= 0) && (iindex < 4) && + (jindex >= 0) && (jindex < 16)) baud = bauds[iindex][jindex]; else baud = 0; @@ -787,7 +798,8 @@ static void neo_param(struct tty_struct *tty) neo_set_cts_flow_control(ch); } else if (ch->ch_c_iflag & IXON) { /* If start/stop is set to disable, then we should disable flow control */ - if ((ch->ch_startc == _POSIX_VDISABLE) || (ch->ch_stopc == _POSIX_VDISABLE)) + if ((ch->ch_startc == _POSIX_VDISABLE) || + (ch->ch_stopc == _POSIX_VDISABLE)) neo_set_no_output_flow_control(ch); else neo_set_ixon_flow_control(ch); @@ -799,7 +811,8 @@ static void neo_param(struct tty_struct *tty) neo_set_rts_flow_control(ch); } else if (ch->ch_c_iflag & IXOFF) { /* If start/stop is set to disable, then we should disable flow control */ - if ((ch->ch_startc == _POSIX_VDISABLE) || (ch->ch_stopc == _POSIX_VDISABLE)) + if ((ch->ch_startc == _POSIX_VDISABLE) || + (ch->ch_stopc == _POSIX_VDISABLE)) neo_set_no_input_flow_control(ch); else neo_set_ixoff_flow_control(ch); @@ -1172,7 +1185,8 @@ static void neo_copy_data_from_uart_to_queue(struct channel_t *ch) linestatus = 0; /* Copy data from uart to the queue */ - memcpy_fromio(ch->ch_rqueue + head, &ch->ch_neo_uart->txrxburst, n); + memcpy_fromio(ch->ch_rqueue + head, + &ch->ch_neo_uart->txrxburst, n); /* * Since RX_FIFO_DATA_ERROR was 0, we are guaranteed @@ -1225,7 +1239,8 @@ static void neo_copy_data_from_uart_to_queue(struct channel_t *ch) * we don't miss our TX FIFO emptys. */ if (linestatus & (UART_LSR_THRE | UART_17158_TX_AND_FIFO_CLR)) { - linestatus &= ~(UART_LSR_THRE | UART_17158_TX_AND_FIFO_CLR); + linestatus &= ~(UART_LSR_THRE | + UART_17158_TX_AND_FIFO_CLR); ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); } @@ -1255,7 +1270,8 @@ static void neo_copy_data_from_uart_to_queue(struct channel_t *ch) qleft++; } - memcpy_fromio(ch->ch_rqueue + head, &ch->ch_neo_uart->txrxburst, 1); + memcpy_fromio(ch->ch_rqueue + head, + &ch->ch_neo_uart->txrxburst, 1); ch->ch_equeue[head] = (unsigned char)linestatus; /* Ditch any remaining linestatus value. */ @@ -1328,7 +1344,8 @@ static void neo_flush_uart_write(struct channel_t *ch) if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) return; - writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_XMIT), &ch->ch_neo_uart->isr_fcr); + writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_XMIT), + &ch->ch_neo_uart->isr_fcr); neo_pci_posting_flush(ch->ch_bd); for (i = 0; i < 10; i++) { @@ -1356,7 +1373,8 @@ static void neo_flush_uart_read(struct channel_t *ch) if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) return; - writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR), &ch->ch_neo_uart->isr_fcr); + writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR), + &ch->ch_neo_uart->isr_fcr); neo_pci_posting_flush(ch->ch_bd); for (i = 0; i < 10; i++) { @@ -1427,7 +1445,8 @@ static void neo_copy_data_from_queue_to_uart(struct channel_t *ch) ch->ch_tun.un_flags |= (UN_EMPTY); } - writeb(ch->ch_wqueue[ch->ch_w_tail], &ch->ch_neo_uart->txrx); + writeb(ch->ch_wqueue[ch->ch_w_tail], + &ch->ch_neo_uart->txrx); ch->ch_w_tail++; ch->ch_w_tail &= WQUEUEMASK; ch->ch_txcount++; @@ -1494,7 +1513,8 @@ static void neo_copy_data_from_queue_to_uart(struct channel_t *ch) ch->ch_tun.un_flags |= (UN_EMPTY); } - memcpy_toio(&ch->ch_neo_uart->txrxburst, ch->ch_wqueue + tail, s); + memcpy_toio(&ch->ch_neo_uart->txrxburst, + ch->ch_wqueue + tail, s); /* Add and flip queue if needed */ tail = (tail + s) & WQUEUEMASK; @@ -1628,7 +1648,8 @@ static void neo_uart_init(struct channel_t *ch) /* Clear out UART and FIFO */ readb(&ch->ch_neo_uart->txrx); - writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT), &ch->ch_neo_uart->isr_fcr); + writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT), + &ch->ch_neo_uart->isr_fcr); readb(&ch->ch_neo_uart->lsr); readb(&ch->ch_neo_uart->msr); @@ -1725,7 +1746,8 @@ static void neo_send_immediate_char(struct channel_t *ch, unsigned char c) neo_pci_posting_flush(ch->ch_bd); } -static unsigned int neo_read_eeprom(unsigned char __iomem *base, unsigned int address) +static unsigned int neo_read_eeprom(unsigned char __iomem *base, + unsigned int address) { unsigned int enable; unsigned int bits; -- cgit v0.10.2 From 318723e4ff367f2c0b15eee534ed2854628d292a Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Fri, 25 Mar 2016 11:44:34 +0900 Subject: staging: dgnc: fix Logical continuations should be on the fix checkpatch.pl warning about 'Logical continuations should be on the previous line' in dgnc_neo.c file. I think the 'force' need to check first, because if the 'force' is true, it doesn't need to call another function call. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index 10b596f..d732e6e 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -359,8 +359,8 @@ static inline void neo_clear_break(struct channel_t *ch, int force) /* Turn break off, and unset some variables */ if (ch->ch_flags & CH_BREAK_SENDING) { - if (time_after_eq(jiffies, ch->ch_stop_sending_break) - || force) { + if (force || + time_after_eq(jiffies, ch->ch_stop_sending_break)) { unsigned char temp = readb(&ch->ch_neo_uart->lcr); writeb((temp & ~UART_LCR_SBC), &ch->ch_neo_uart->lcr); -- cgit v0.10.2 From 997e518821ea0565bb92c5feba43c24c46be933d Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:45 -0400 Subject: staging: lustre: libcfs: limit scope of libcfs_crypto.h Remove from and only include it into the places where it is actually needed. This works out to be the same places as , so put it there. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h index 6a8e0d0..d2e4361 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h @@ -96,7 +96,6 @@ void cfs_get_random_bytes(void *buf, int size); #include "libcfs_workitem.h" #include "libcfs_hash.h" #include "libcfs_fail.h" -#include "libcfs_crypto.h" struct libcfs_ioctl_handler { struct list_head item; diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index 8c9377e..d4cb260 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -30,6 +30,7 @@ #include #include #include "../../../include/linux/libcfs/libcfs.h" +#include "../../../include/linux/libcfs/libcfs_crypto.h" #include "linux-crypto.h" /** * Array of hash algorithm speed in MByte per second diff --git a/drivers/staging/lustre/lustre/include/obd_cksum.h b/drivers/staging/lustre/lustre/include/obd_cksum.h index 637fa22..f6c18df 100644 --- a/drivers/staging/lustre/lustre/include/obd_cksum.h +++ b/drivers/staging/lustre/lustre/include/obd_cksum.h @@ -35,6 +35,7 @@ #ifndef __OBD_CKSUM #define __OBD_CKSUM #include "../../include/linux/libcfs/libcfs.h" +#include "../../include/linux/libcfs/libcfs_crypto.h" #include "lustre/lustre_idl.h" static inline unsigned char cksum_obd2cfs(enum cksum_type cksum_type) -- cgit v0.10.2 From 020b02154d79e1e01f846da7a6beab59fd7c7840 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:46 -0400 Subject: staging: lustre: libcfs: add documentation for cfs_crypto_hash_*() Add comment blocks for cfs_crypto_hash_*() in linux-crypto.c and libcfs_crypto.h. Delete obsolete comment about shash handling in cfs_crypto_hash_alloc(). Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h index e866369..5182416 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h @@ -61,7 +61,14 @@ static struct cfs_crypto_hash_type hash_types[] = { [CFS_HASH_ALG_SHA512] = { "sha512", 0, 64 }, }; -/** Return pointer to type of hash for valid hash algorithm identifier */ +/** + * Return hash algorithm information for the specified algorithm identifier + * + * Hash information includes algorithm name, initial seed, hash size. + * + * \retval cfs_crypto_hash_type for valid ID (CFS_HASH_ALG_*) + * \retval NULL for unknown algorithm identifier + */ static inline const struct cfs_crypto_hash_type * cfs_crypto_hash_type(unsigned char hash_alg) { @@ -75,7 +82,14 @@ static inline const struct cfs_crypto_hash_type * return NULL; } -/** Return hash name for valid hash algorithm identifier or "unknown" */ +/** + * Return hash name for hash algorithm identifier + * + * \param[in] hash_alg hash alrgorithm id (CFS_HASH_ALG_*) + * + * \retval string name of known hash algorithm + * \retval "unknown" if hash algorithm is unknown + */ static inline const char *cfs_crypto_hash_name(unsigned char hash_alg) { const struct cfs_crypto_hash_type *ht; @@ -86,7 +100,14 @@ static inline const char *cfs_crypto_hash_name(unsigned char hash_alg) return "unknown"; } -/** Return digest size for valid algorithm identifier or 0 */ +/** + * Return digest size for hash algorithm type + * + * \param[in] hash_alg hash alrgorithm id (CFS_HASH_ALG_*) + * + * \retval hash algorithm digest size in bytes + * \retval 0 if hash algorithm type is unknown + */ static inline int cfs_crypto_hash_digestsize(unsigned char hash_alg) { const struct cfs_crypto_hash_type *ht; @@ -97,7 +118,12 @@ static inline int cfs_crypto_hash_digestsize(unsigned char hash_alg) return 0; } -/** Return hash identifier for valid hash algorithm name or 0xFF */ +/** + * Find hash algorithm ID for the specified algorithm name + * + * \retval hash algorithm ID for valid ID (CFS_HASH_ALG_*) + * \retval CFS_HASH_ALG_UNKNOWN for unknown algorithm name + */ static inline unsigned char cfs_crypto_hash_alg(const char *algname) { unsigned char i; @@ -108,24 +134,6 @@ static inline unsigned char cfs_crypto_hash_alg(const char *algname) return (i == CFS_HASH_ALG_MAX ? 0xFF : i); } -/** Calculate hash digest for buffer. - * @param alg id of hash algorithm - * @param buf buffer of data - * @param buf_len buffer len - * @param key initial value for algorithm, if it is NULL, - * default initial value should be used. - * @param key_len len of initial value - * @param hash [out] pointer to hash, if it is NULL, hash_len is - * set to valid digest size in bytes, retval -ENOSPC. - * @param hash_len [in,out] size of hash buffer - * @returns status of operation - * @retval -EINVAL if buf, buf_len, hash_len or alg_id is invalid - * @retval -ENODEV if this algorithm is unsupported - * @retval -ENOSPC if pointer to hash is NULL, or hash_len less than - * digest size - * @retval 0 for success - * @retval < 0 other errors from lower layers. - */ int cfs_crypto_hash_digest(unsigned char alg, const void *buf, unsigned int buf_len, unsigned char *key, unsigned int key_len, @@ -134,66 +142,17 @@ int cfs_crypto_hash_digest(unsigned char alg, /* cfs crypto hash descriptor */ struct cfs_crypto_hash_desc; -/** Allocate and initialize descriptor for hash algorithm. - * @param alg algorithm id - * @param key initial value for algorithm, if it is NULL, - * default initial value should be used. - * @param key_len len of initial value - * @returns pointer to descriptor of hash instance - * @retval ERR_PTR(error) when errors occurred. - */ struct cfs_crypto_hash_desc* cfs_crypto_hash_init(unsigned char alg, unsigned char *key, unsigned int key_len); - -/** Update digest by part of data. - * @param desc hash descriptor - * @param page data page - * @param offset data offset - * @param len data len - * @returns status of operation - * @retval 0 for success. - */ int cfs_crypto_hash_update_page(struct cfs_crypto_hash_desc *desc, struct page *page, unsigned int offset, unsigned int len); - -/** Update digest by part of data. - * @param desc hash descriptor - * @param buf pointer to data buffer - * @param buf_len size of data at buffer - * @returns status of operation - * @retval 0 for success. - */ int cfs_crypto_hash_update(struct cfs_crypto_hash_desc *desc, const void *buf, unsigned int buf_len); - -/** Finalize hash calculation, copy hash digest to buffer, destroy hash - * descriptor. - * @param desc hash descriptor - * @param hash buffer pointer to store hash digest - * @param hash_len pointer to hash buffer size, if NULL - * destroy hash descriptor - * @returns status of operation - * @retval -ENOSPC if hash is NULL, or *hash_len less than - * digest size - * @retval 0 for success - * @retval < 0 other errors from lower layers. - */ int cfs_crypto_hash_final(struct cfs_crypto_hash_desc *desc, unsigned char *hash, unsigned int *hash_len); -/** - * Register crypto hash algorithms - */ int cfs_crypto_register(void); - -/** - * Unregister - */ void cfs_crypto_unregister(void); - -/** Return hash speed in Mbytes per second for valid hash algorithm - * identifier. If test was unsuccessful -1 would be returned. - */ int cfs_crypto_hash_speed(unsigned char hash_alg); #endif diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index d4cb260..8960c3a 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -32,11 +32,31 @@ #include "../../../include/linux/libcfs/libcfs.h" #include "../../../include/linux/libcfs/libcfs_crypto.h" #include "linux-crypto.h" + /** - * Array of hash algorithm speed in MByte per second + * Array of hash algorithm speed in MByte per second */ static int cfs_crypto_hash_speeds[CFS_HASH_ALG_MAX]; +/** + * Initialize the state descriptor for the specified hash algorithm. + * + * An internal routine to allocate the hash-specific state in \a hdesc for + * use with cfs_crypto_hash_digest() to compute the hash of a single message, + * though possibly in multiple chunks. The descriptor internal state should + * be freed with cfs_crypto_hash_final(). + * + * \param[in] hash_alg hash algorithm id (CFS_HASH_ALG_*) + * \param[out] type pointer to the hash description in hash_types[] + * array + * \param[in,out] hdesc hash state descriptor to be initialized + * \param[in] key initial hash value/state, NULL to use default + * value + * \param[in] key_len length of \a key + * + * \retval 0 on success + * \retval negative errno on failure + */ static int cfs_crypto_hash_alloc(unsigned char alg_id, const struct cfs_crypto_hash_type **type, struct ahash_request **req, @@ -71,12 +91,6 @@ static int cfs_crypto_hash_alloc(unsigned char alg_id, ahash_request_set_callback(*req, 0, NULL, NULL); - /** Shash have different logic for initialization then digest - * shash: crypto_hash_setkey, crypto_hash_init - * digest: crypto_digest_init, crypto_digest_setkey - * Skip this function for digest, because we use shash logic at - * cfs_crypto_hash_alloc. - */ if (key) err = crypto_ahash_setkey(tfm, key, key_len); else if ((*type)->cht_key != 0) @@ -101,6 +115,32 @@ static int cfs_crypto_hash_alloc(unsigned char alg_id, return err; } +/** + * Calculate hash digest for the passed buffer. + * + * This should be used when computing the hash on a single contiguous buffer. + * It combines the hash initialization, computation, and cleanup. + * + * \param[in] hash_alg id of hash algorithm (CFS_HASH_ALG_*) + * \param[in] buf data buffer on which to compute hash + * \param[in] buf_len length of \a buf in bytes + * \param[in] key initial value/state for algorithm, + * if \a key = NULL use default initial value + * \param[in] key_len length of \a key in bytes + * \param[out] hash pointer to computed hash value, + * if \a hash = NULL then \a hash_len is to digest + * size in bytes, retval -ENOSPC + * \param[in,out] hash_len size of \a hash buffer + * + * \retval -EINVAL \a buf, \a buf_len, \a hash_len, + * \a alg_id invalid + * \retval -ENOENT \a hash_alg is unsupported + * \retval -ENOSPC \a hash is NULL, or \a hash_len less than + * digest size + * \retval 0 for success + * \retval negative errno for other errors from lower + * layers. + */ int cfs_crypto_hash_digest(unsigned char alg_id, const void *buf, unsigned int buf_len, unsigned char *key, unsigned int key_len, @@ -135,6 +175,23 @@ int cfs_crypto_hash_digest(unsigned char alg_id, } EXPORT_SYMBOL(cfs_crypto_hash_digest); +/** + * Allocate and initialize desriptor for hash algorithm. + * + * This should be used to initialize a hash descriptor for multiple calls + * to a single hash function when computing the hash across multiple + * separate buffers or pages using cfs_crypto_hash_update{,_page}(). + * + * The hash descriptor should be freed with cfs_crypto_hash_final(). + * + * \param[in] hash_alg algorithm id (CFS_HASH_ALG_*) + * \param[in] key initial value/state for algorithm, if \a key = NULL + * use default initial value + * \param[in] key_len length of \a key in bytes + * + * \retval pointer to descriptor of hash instance + * \retval ERR_PTR(errno) in case of error + */ struct cfs_crypto_hash_desc * cfs_crypto_hash_init(unsigned char alg_id, unsigned char *key, unsigned int key_len) @@ -151,6 +208,17 @@ struct cfs_crypto_hash_desc * } EXPORT_SYMBOL(cfs_crypto_hash_init); +/** + * Update hash digest computed on data within the given \a page + * + * \param[in] hdesc hash state descriptor + * \param[in] page data page on which to compute the hash + * \param[in] offset offset within \a page at which to start hash + * \param[in] len length of data on which to compute hash + * + * \retval 0 for success + * \retval negative errno on failure + */ int cfs_crypto_hash_update_page(struct cfs_crypto_hash_desc *hdesc, struct page *page, unsigned int offset, unsigned int len) @@ -166,6 +234,16 @@ int cfs_crypto_hash_update_page(struct cfs_crypto_hash_desc *hdesc, } EXPORT_SYMBOL(cfs_crypto_hash_update_page); +/** + * Update hash digest computed on the specified data + * + * \param[in] hdesc hash state descriptor + * \param[in] buf data buffer on which to compute the hash + * \param[in] buf_len length of \buf on which to compute hash + * + * \retval 0 for success + * \retval negative errno on failure + */ int cfs_crypto_hash_update(struct cfs_crypto_hash_desc *hdesc, const void *buf, unsigned int buf_len) { @@ -179,7 +257,18 @@ int cfs_crypto_hash_update(struct cfs_crypto_hash_desc *hdesc, } EXPORT_SYMBOL(cfs_crypto_hash_update); -/* If hash_len pointer is NULL - destroy descriptor. */ +/** + * Finish hash calculation, copy hash digest to buffer, clean up hash descriptor + * + * \param[in] hdesc hash descriptor + * \param[out] hash pointer to hash buffer to store hash digest + * \param[in,out] hash_len pointer to hash buffer size, if \a hdesc = NULL + * only free \a hdesc instead of computing the hash + * + * \retval -ENOSPC if \a hash = NULL, or \a hash_len < digest size + * \retval 0 for success + * \retval negative errno for other errors from lower layers + */ int cfs_crypto_hash_final(struct cfs_crypto_hash_desc *hdesc, unsigned char *hash, unsigned int *hash_len) { @@ -209,6 +298,17 @@ int cfs_crypto_hash_final(struct cfs_crypto_hash_desc *hdesc, } EXPORT_SYMBOL(cfs_crypto_hash_final); +/** + * Compute the speed of specified hash function + * + * Run a speed test on the given hash algorithm on buffer of the given size. + * The speed is stored internally in the cfs_crypto_hash_speeds[] array, and + * is available through the cfs_crypto_hash_speed() function. + * + * \param[in] hash_alg hash algorithm id (CFS_HASH_ALG_*) + * \param[in] buf data buffer on which to compute the hash + * \param[in] buf_len length of \buf on which to compute hash + */ static void cfs_crypto_performance_test(unsigned char alg_id, const unsigned char *buf, unsigned int buf_len) @@ -243,6 +343,18 @@ static void cfs_crypto_performance_test(unsigned char alg_id, cfs_crypto_hash_name(alg_id), cfs_crypto_hash_speeds[alg_id]); } +/** + * hash speed in Mbytes per second for valid hash algorithm + * + * Return the performance of the specified \a hash_alg that was previously + * computed using cfs_crypto_performance_test(). + * + * \param[in] hash_alg hash algorithm id (CFS_HASH_ALG_*) + * + * \retval positive speed of the hash function in MB/s + * \retval -ENOENT if \a hash_alg is unsupported + * \retval negative errno if \a hash_alg speed is unavailable + */ int cfs_crypto_hash_speed(unsigned char hash_alg) { if (hash_alg < CFS_HASH_ALG_MAX) @@ -252,7 +364,22 @@ int cfs_crypto_hash_speed(unsigned char hash_alg) EXPORT_SYMBOL(cfs_crypto_hash_speed); /** - * Do performance test for all hash algorithms. + * Run the performance test for all hash algorithms. + * + * Run the cfs_crypto_performance_test() benchmark for all of the available + * hash functions using a 1MB buffer size. This is a reasonable buffer size + * for Lustre RPCs, even if the actual RPC size is larger or smaller. + * + * Since the setup cost and computation speed of various hash algorithms is + * a function of the buffer size (and possibly internal contention of offload + * engines), this speed only represents an estimate of the actual speed under + * actual usage, but is reasonable for comparing available algorithms. + * + * The actual speeds are available via cfs_crypto_hash_speed() for later + * comparison. + * + * \retval 0 on success + * \retval -ENOMEM if no memory is available for test buffer */ static int cfs_crypto_test_hashes(void) { @@ -280,6 +407,11 @@ static int cfs_crypto_test_hashes(void) static int adler32; +/** + * Register available hash functions + * + * \retval 0 + */ int cfs_crypto_register(void) { request_module("crc32c"); @@ -291,6 +423,9 @@ int cfs_crypto_register(void) return 0; } +/** + * Unregister previously registered hash functions + */ void cfs_crypto_unregister(void) { if (adler32 == 0) -- cgit v0.10.2 From 4d60ffa12c887e1944d5582d79cc9d7f3593eb00 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:47 -0400 Subject: staging: lustre: libcfs: rename some variables for crypto handling For the crypto algorthim type use the same name hash_alg everywhere. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h index 5182416..0782bfb 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h @@ -134,7 +134,7 @@ static inline unsigned char cfs_crypto_hash_alg(const char *algname) return (i == CFS_HASH_ALG_MAX ? 0xFF : i); } -int cfs_crypto_hash_digest(unsigned char alg, +int cfs_crypto_hash_digest(unsigned char hash_alg, const void *buf, unsigned int buf_len, unsigned char *key, unsigned int key_len, unsigned char *hash, unsigned int *hash_len); @@ -143,7 +143,7 @@ int cfs_crypto_hash_digest(unsigned char alg, struct cfs_crypto_hash_desc; struct cfs_crypto_hash_desc* - cfs_crypto_hash_init(unsigned char alg, + cfs_crypto_hash_init(unsigned char hash_alg, unsigned char *key, unsigned int key_len); int cfs_crypto_hash_update_page(struct cfs_crypto_hash_desc *desc, struct page *page, unsigned int offset, diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index 8960c3a..1a9eb77 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -57,7 +57,7 @@ static int cfs_crypto_hash_speeds[CFS_HASH_ALG_MAX]; * \retval 0 on success * \retval negative errno on failure */ -static int cfs_crypto_hash_alloc(unsigned char alg_id, +static int cfs_crypto_hash_alloc(unsigned char hash_alg, const struct cfs_crypto_hash_type **type, struct ahash_request **req, unsigned char *key, @@ -66,11 +66,11 @@ static int cfs_crypto_hash_alloc(unsigned char alg_id, struct crypto_ahash *tfm; int err = 0; - *type = cfs_crypto_hash_type(alg_id); + *type = cfs_crypto_hash_type(hash_alg); if (!*type) { CWARN("Unsupported hash algorithm id = %d, max id is %d\n", - alg_id, CFS_HASH_ALG_MAX); + hash_alg, CFS_HASH_ALG_MAX); return -EINVAL; } tfm = crypto_alloc_ahash((*type)->cht_name, 0, CRYPTO_ALG_ASYNC); @@ -105,7 +105,7 @@ static int cfs_crypto_hash_alloc(unsigned char alg_id, CDEBUG(D_INFO, "Using crypto hash: %s (%s) speed %d MB/s\n", crypto_ahash_alg_name(tfm), crypto_ahash_driver_name(tfm), - cfs_crypto_hash_speeds[alg_id]); + cfs_crypto_hash_speeds[hash_alg]); err = crypto_ahash_init(*req); if (err) { @@ -133,7 +133,7 @@ static int cfs_crypto_hash_alloc(unsigned char alg_id, * \param[in,out] hash_len size of \a hash buffer * * \retval -EINVAL \a buf, \a buf_len, \a hash_len, - * \a alg_id invalid + * \a hash_alg invalid * \retval -ENOENT \a hash_alg is unsupported * \retval -ENOSPC \a hash is NULL, or \a hash_len less than * digest size @@ -141,7 +141,7 @@ static int cfs_crypto_hash_alloc(unsigned char alg_id, * \retval negative errno for other errors from lower * layers. */ -int cfs_crypto_hash_digest(unsigned char alg_id, +int cfs_crypto_hash_digest(unsigned char hash_alg, const void *buf, unsigned int buf_len, unsigned char *key, unsigned int key_len, unsigned char *hash, unsigned int *hash_len) @@ -154,7 +154,7 @@ int cfs_crypto_hash_digest(unsigned char alg_id, if (!buf || buf_len == 0 || !hash_len) return -EINVAL; - err = cfs_crypto_hash_alloc(alg_id, &type, &req, key, key_len); + err = cfs_crypto_hash_alloc(hash_alg, &type, &req, key, key_len); if (err != 0) return err; @@ -193,14 +193,14 @@ EXPORT_SYMBOL(cfs_crypto_hash_digest); * \retval ERR_PTR(errno) in case of error */ struct cfs_crypto_hash_desc * - cfs_crypto_hash_init(unsigned char alg_id, + cfs_crypto_hash_init(unsigned char hash_alg, unsigned char *key, unsigned int key_len) { struct ahash_request *req; int err; const struct cfs_crypto_hash_type *type; - err = cfs_crypto_hash_alloc(alg_id, &type, &req, key, key_len); + err = cfs_crypto_hash_alloc(hash_alg, &type, &req, key, key_len); if (err) return ERR_PTR(err); @@ -309,7 +309,7 @@ EXPORT_SYMBOL(cfs_crypto_hash_final); * \param[in] buf data buffer on which to compute the hash * \param[in] buf_len length of \buf on which to compute hash */ -static void cfs_crypto_performance_test(unsigned char alg_id, +static void cfs_crypto_performance_test(unsigned char hash_alg, const unsigned char *buf, unsigned int buf_len) { @@ -321,7 +321,7 @@ static void cfs_crypto_performance_test(unsigned char alg_id, for (start = jiffies, end = start + sec * HZ, bcount = 0; time_before(jiffies, end); bcount++) { - err = cfs_crypto_hash_digest(alg_id, buf, buf_len, NULL, 0, + err = cfs_crypto_hash_digest(hash_alg, buf, buf_len, NULL, 0, hash, &hash_len); if (err) break; @@ -329,18 +329,18 @@ static void cfs_crypto_performance_test(unsigned char alg_id, end = jiffies; if (err) { - cfs_crypto_hash_speeds[alg_id] = -1; + cfs_crypto_hash_speeds[hash_alg] = -1; CDEBUG(D_INFO, "Crypto hash algorithm %s, err = %d\n", - cfs_crypto_hash_name(alg_id), err); + cfs_crypto_hash_name(hash_alg), err); } else { unsigned long tmp; tmp = ((bcount * buf_len / jiffies_to_msecs(end - start)) * 1000) / (1024 * 1024); - cfs_crypto_hash_speeds[alg_id] = (int)tmp; + cfs_crypto_hash_speeds[hash_alg] = (int)tmp; } CDEBUG(D_INFO, "Crypto hash algorithm %s speed = %d MB/s\n", - cfs_crypto_hash_name(alg_id), cfs_crypto_hash_speeds[alg_id]); + cfs_crypto_hash_name(hash_alg), cfs_crypto_hash_speeds[hash_alg]); } /** -- cgit v0.10.2 From 24a4e1ec63ffcd87f656f507709b5f03f6a5f155 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:48 -0400 Subject: staging: lustre: libcfs: add new definitions for cfs_crypto api Add CFS_HASH_ALG_UNKOWN for unknown hash names instead of using "0xFF" directly. Define the max digestsize the cfs crypto api can handle. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h index 0782bfb..921aa7c 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h @@ -46,7 +46,8 @@ enum cfs_crypto_hash_alg { CFS_HASH_ALG_SHA384, CFS_HASH_ALG_SHA512, CFS_HASH_ALG_CRC32C, - CFS_HASH_ALG_MAX + CFS_HASH_ALG_MAX, + CFS_HASH_ALG_UNKNOWN = 0xff }; static struct cfs_crypto_hash_type hash_types[] = { @@ -59,8 +60,12 @@ static struct cfs_crypto_hash_type hash_types[] = { [CFS_HASH_ALG_SHA256] = { "sha256", 0, 32 }, [CFS_HASH_ALG_SHA384] = { "sha384", 0, 48 }, [CFS_HASH_ALG_SHA512] = { "sha512", 0, 64 }, + [CFS_HASH_ALG_MAX] = { NULL, 0, 64 }, }; +/* Maximum size of hash_types[].cht_size */ +#define CFS_CRYPTO_HASH_DIGESTSIZE_MAX 64 + /** * Return hash algorithm information for the specified algorithm identifier * @@ -131,7 +136,7 @@ static inline unsigned char cfs_crypto_hash_alg(const char *algname) for (i = 0; i < CFS_HASH_ALG_MAX; i++) if (!strcmp(hash_types[i].cht_name, algname)) break; - return (i == CFS_HASH_ALG_MAX ? 0xFF : i); + return (i == CFS_HASH_ALG_MAX ? CFS_HASH_ALG_UNKNOWN : i); } int cfs_crypto_hash_digest(unsigned char hash_alg, diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index 1a9eb77..b4e203d 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -316,8 +316,8 @@ static void cfs_crypto_performance_test(unsigned char hash_alg, unsigned long start, end; int bcount, err = 0; int sec = 1; /* do test only 1 sec */ - unsigned char hash[64]; - unsigned int hash_len = 64; + unsigned char hash[CFS_CRYPTO_HASH_DIGESTSIZE_MAX]; + unsigned int hash_len = sizeof(hash); for (start = jiffies, end = start + sec * HZ, bcount = 0; time_before(jiffies, end); bcount++) { -- cgit v0.10.2 From 56ebc2e875f1103b941163008ece8612c9e97ba4 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:49 -0400 Subject: staging: lustre: libcfs: small alignment change for cfs_crypto_hash_*() Change the aligment of some of the functions. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h index 921aa7c..ade8894 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h @@ -75,7 +75,7 @@ static struct cfs_crypto_hash_type hash_types[] = { * \retval NULL for unknown algorithm identifier */ static inline const struct cfs_crypto_hash_type * - cfs_crypto_hash_type(unsigned char hash_alg) +cfs_crypto_hash_type(unsigned char hash_alg) { struct cfs_crypto_hash_type *ht; @@ -95,7 +95,8 @@ static inline const struct cfs_crypto_hash_type * * \retval string name of known hash algorithm * \retval "unknown" if hash algorithm is unknown */ -static inline const char *cfs_crypto_hash_name(unsigned char hash_alg) +static inline const char * +cfs_crypto_hash_name(unsigned char hash_alg) { const struct cfs_crypto_hash_type *ht; @@ -147,9 +148,9 @@ int cfs_crypto_hash_digest(unsigned char hash_alg, /* cfs crypto hash descriptor */ struct cfs_crypto_hash_desc; -struct cfs_crypto_hash_desc* - cfs_crypto_hash_init(unsigned char hash_alg, - unsigned char *key, unsigned int key_len); +struct cfs_crypto_hash_desc * +cfs_crypto_hash_init(unsigned char hash_alg, + unsigned char *key, unsigned int key_len); int cfs_crypto_hash_update_page(struct cfs_crypto_hash_desc *desc, struct page *page, unsigned int offset, unsigned int len); diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index b4e203d..0241729 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -193,8 +193,8 @@ EXPORT_SYMBOL(cfs_crypto_hash_digest); * \retval ERR_PTR(errno) in case of error */ struct cfs_crypto_hash_desc * - cfs_crypto_hash_init(unsigned char hash_alg, - unsigned char *key, unsigned int key_len) +cfs_crypto_hash_init(unsigned char hash_alg, + unsigned char *key, unsigned int key_len) { struct ahash_request *req; int err; -- cgit v0.10.2 From 244cd87cc078fd18a8cbbb4db2998b95760007f6 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:50 -0400 Subject: staging: lustre: libcfs: start using enum cfs_crypto_hash_alg Fix the cfs_crypto_hash_* functions to take enum cfs_crypto_hash_alg as the algorithm type, instead of an unsigned char. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h index ade8894..02be7d7 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h @@ -75,7 +75,7 @@ static struct cfs_crypto_hash_type hash_types[] = { * \retval NULL for unknown algorithm identifier */ static inline const struct cfs_crypto_hash_type * -cfs_crypto_hash_type(unsigned char hash_alg) +cfs_crypto_hash_type(enum cfs_crypto_hash_alg hash_alg) { struct cfs_crypto_hash_type *ht; @@ -96,7 +96,7 @@ cfs_crypto_hash_type(unsigned char hash_alg) * \retval "unknown" if hash algorithm is unknown */ static inline const char * -cfs_crypto_hash_name(unsigned char hash_alg) +cfs_crypto_hash_name(enum cfs_crypto_hash_alg hash_alg) { const struct cfs_crypto_hash_type *ht; @@ -114,7 +114,7 @@ cfs_crypto_hash_name(unsigned char hash_alg) * \retval hash algorithm digest size in bytes * \retval 0 if hash algorithm type is unknown */ -static inline int cfs_crypto_hash_digestsize(unsigned char hash_alg) +static inline int cfs_crypto_hash_digestsize(enum cfs_crypto_hash_alg hash_alg) { const struct cfs_crypto_hash_type *ht; @@ -132,15 +132,16 @@ static inline int cfs_crypto_hash_digestsize(unsigned char hash_alg) */ static inline unsigned char cfs_crypto_hash_alg(const char *algname) { - unsigned char i; + enum cfs_crypto_hash_alg hash_alg; - for (i = 0; i < CFS_HASH_ALG_MAX; i++) - if (!strcmp(hash_types[i].cht_name, algname)) - break; - return (i == CFS_HASH_ALG_MAX ? CFS_HASH_ALG_UNKNOWN : i); + for (hash_alg = 0; hash_alg < CFS_HASH_ALG_MAX; hash_alg++) + if (strcmp(hash_types[hash_alg].cht_name, algname) == 0) + return hash_alg; + + return CFS_HASH_ALG_UNKNOWN; } -int cfs_crypto_hash_digest(unsigned char hash_alg, +int cfs_crypto_hash_digest(enum cfs_crypto_hash_alg hash_alg, const void *buf, unsigned int buf_len, unsigned char *key, unsigned int key_len, unsigned char *hash, unsigned int *hash_len); @@ -149,7 +150,7 @@ int cfs_crypto_hash_digest(unsigned char hash_alg, struct cfs_crypto_hash_desc; struct cfs_crypto_hash_desc * -cfs_crypto_hash_init(unsigned char hash_alg, +cfs_crypto_hash_init(enum cfs_crypto_hash_alg hash_alg, unsigned char *key, unsigned int key_len); int cfs_crypto_hash_update_page(struct cfs_crypto_hash_desc *desc, struct page *page, unsigned int offset, @@ -160,5 +161,5 @@ int cfs_crypto_hash_final(struct cfs_crypto_hash_desc *desc, unsigned char *hash, unsigned int *hash_len); int cfs_crypto_register(void); void cfs_crypto_unregister(void); -int cfs_crypto_hash_speed(unsigned char hash_alg); +int cfs_crypto_hash_speed(enum cfs_crypto_hash_alg hash_alg); #endif diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index 0241729..6fe1fdd 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -57,7 +57,7 @@ static int cfs_crypto_hash_speeds[CFS_HASH_ALG_MAX]; * \retval 0 on success * \retval negative errno on failure */ -static int cfs_crypto_hash_alloc(unsigned char hash_alg, +static int cfs_crypto_hash_alloc(enum cfs_crypto_hash_alg hash_alg, const struct cfs_crypto_hash_type **type, struct ahash_request **req, unsigned char *key, @@ -141,7 +141,7 @@ static int cfs_crypto_hash_alloc(unsigned char hash_alg, * \retval negative errno for other errors from lower * layers. */ -int cfs_crypto_hash_digest(unsigned char hash_alg, +int cfs_crypto_hash_digest(enum cfs_crypto_hash_alg hash_alg, const void *buf, unsigned int buf_len, unsigned char *key, unsigned int key_len, unsigned char *hash, unsigned int *hash_len) @@ -193,7 +193,7 @@ EXPORT_SYMBOL(cfs_crypto_hash_digest); * \retval ERR_PTR(errno) in case of error */ struct cfs_crypto_hash_desc * -cfs_crypto_hash_init(unsigned char hash_alg, +cfs_crypto_hash_init(enum cfs_crypto_hash_alg hash_alg, unsigned char *key, unsigned int key_len) { struct ahash_request *req; @@ -309,7 +309,7 @@ EXPORT_SYMBOL(cfs_crypto_hash_final); * \param[in] buf data buffer on which to compute the hash * \param[in] buf_len length of \buf on which to compute hash */ -static void cfs_crypto_performance_test(unsigned char hash_alg, +static void cfs_crypto_performance_test(enum cfs_crypto_hash_alg hash_alg, const unsigned char *buf, unsigned int buf_len) { @@ -355,7 +355,7 @@ static void cfs_crypto_performance_test(unsigned char hash_alg, * \retval -ENOENT if \a hash_alg is unsupported * \retval negative errno if \a hash_alg speed is unavailable */ -int cfs_crypto_hash_speed(unsigned char hash_alg) +int cfs_crypto_hash_speed(enum cfs_crypto_hash_alg hash_alg) { if (hash_alg < CFS_HASH_ALG_MAX) return cfs_crypto_hash_speeds[hash_alg]; -- cgit v0.10.2 From c11e27a4ee39479b9afef86bfed8ef3f75756262 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:51 -0400 Subject: staging: lustre: libcfs: bug fixes for cfs_crypto_hash_final() Change cfs_crypto_hash_final() to always clean up the hash descrptor instead of not doing this in error cases. All of the callers were just calling cfs_crypto_hash_final() immediately to clean up the descriptor anyway, and the old behaviour is unlike other init/fini functions, and prone to memory leaks and other incorrect usage. The callers can call cfs_crypto_digest_size() to determine the hash size in advance if needed, and avoid complexity in cfs_crypto_hash_final(). Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index 6fe1fdd..d5bb10f 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -265,8 +265,8 @@ EXPORT_SYMBOL(cfs_crypto_hash_update); * \param[in,out] hash_len pointer to hash buffer size, if \a hdesc = NULL * only free \a hdesc instead of computing the hash * - * \retval -ENOSPC if \a hash = NULL, or \a hash_len < digest size * \retval 0 for success + * \retval -EOVERFLOW if hash_len is too small for the hash digest * \retval negative errno for other errors from lower layers */ int cfs_crypto_hash_final(struct cfs_crypto_hash_desc *hdesc, @@ -276,22 +276,20 @@ int cfs_crypto_hash_final(struct cfs_crypto_hash_desc *hdesc, struct ahash_request *req = (void *)hdesc; int size = crypto_ahash_digestsize(crypto_ahash_reqtfm(req)); - if (!hash_len) { - crypto_free_ahash(crypto_ahash_reqtfm(req)); - ahash_request_free(req); - return 0; + if (!hash || !hash_len) { + err = 0; + goto free_ahash; } - if (!hash || *hash_len < size) { - *hash_len = size; - return -ENOSPC; + if (*hash_len < size) { + err = -EOVERFLOW; + goto free_ahash; } + ahash_request_set_crypt(req, NULL, hash, 0); err = crypto_ahash_final(req); - - if (err < 0) { - /* May be caller can fix error */ - return err; - } + if (!err) + *hash_len = size; +free_ahash: crypto_free_ahash(crypto_ahash_reqtfm(req)); ahash_request_free(req); return err; diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 74805f1..ec0287f 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -1208,12 +1208,9 @@ static u32 osc_checksum_bulk(int nob, u32 pg_count, i++; } - bufsize = 4; + bufsize = sizeof(cksum); err = cfs_crypto_hash_final(hdesc, (unsigned char *)&cksum, &bufsize); - if (err) - cfs_crypto_hash_final(hdesc, NULL, NULL); - /* For sending we only compute the wrong checksum instead * of corrupting the data so it is still correct on a redo */ diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c index 72d5b9b..54a0c1f 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c +++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c @@ -41,7 +41,6 @@ #define DEBUG_SUBSYSTEM S_SEC #include "../../include/linux/libcfs/libcfs.h" -#include #include "../include/obd.h" #include "../include/obd_cksum.h" @@ -511,7 +510,6 @@ int sptlrpc_get_bulk_checksum(struct ptlrpc_bulk_desc *desc, __u8 alg, { struct cfs_crypto_hash_desc *hdesc; int hashsize; - char hashbuf[64]; unsigned int bufsize; int i, err; @@ -532,18 +530,20 @@ int sptlrpc_get_bulk_checksum(struct ptlrpc_bulk_desc *desc, __u8 alg, desc->bd_iov[i].kiov_offset & ~CFS_PAGE_MASK, desc->bd_iov[i].kiov_len); } + if (hashsize > buflen) { + unsigned char hashbuf[CFS_CRYPTO_HASH_DIGESTSIZE_MAX]; + bufsize = sizeof(hashbuf); - err = cfs_crypto_hash_final(hdesc, (unsigned char *)hashbuf, - &bufsize); + LASSERTF(bufsize >= hashsize, "bufsize = %u < hashsize %u\n", + bufsize, hashsize); + err = cfs_crypto_hash_final(hdesc, hashbuf, &bufsize); memcpy(buf, hashbuf, buflen); } else { bufsize = buflen; err = cfs_crypto_hash_final(hdesc, buf, &bufsize); } - if (err) - cfs_crypto_hash_final(hdesc, NULL, NULL); return err; } EXPORT_SYMBOL(sptlrpc_get_bulk_checksum); -- cgit v0.10.2 From e43c658c5a97570f4c5be8e94eb2ad30d4033123 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:52 -0400 Subject: staging: lustre: libcfs: return proper error code for cfs_crypto_hash_speed() Return a real error code, -ENOENT, instead of a -1. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index d5bb10f..90d6e08 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -357,7 +357,7 @@ int cfs_crypto_hash_speed(enum cfs_crypto_hash_alg hash_alg) { if (hash_alg < CFS_HASH_ALG_MAX) return cfs_crypto_hash_speeds[hash_alg]; - return -1; + return -ENOENT; } EXPORT_SYMBOL(cfs_crypto_hash_speed); -- cgit v0.10.2 From 6ba3f37825982cf71e55ef87aadbffe8f4345a05 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:53 -0400 Subject: staging: lustre: libcfs: allocate memory in cfs_crypto_performance_test() Move memory allocation from cfs_crypto_test_hashes() into the function cfs_crypto_performance_test(). Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index 90d6e08..4857a11 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -307,16 +307,27 @@ EXPORT_SYMBOL(cfs_crypto_hash_final); * \param[in] buf data buffer on which to compute the hash * \param[in] buf_len length of \buf on which to compute hash */ -static void cfs_crypto_performance_test(enum cfs_crypto_hash_alg hash_alg, - const unsigned char *buf, - unsigned int buf_len) +static void cfs_crypto_performance_test(enum cfs_crypto_hash_alg hash_alg) { + int buf_len = max(PAGE_SIZE, 1048576UL); + void *buf; unsigned long start, end; int bcount, err = 0; int sec = 1; /* do test only 1 sec */ + struct page *page; unsigned char hash[CFS_CRYPTO_HASH_DIGESTSIZE_MAX]; unsigned int hash_len = sizeof(hash); + page = alloc_page(GFP_KERNEL); + if (!page) { + err = -ENOMEM; + goto out_err; + } + + buf = kmap(page); + memset(buf, 0xAD, PAGE_SIZE); + kunmap(page); + for (start = jiffies, end = start + sec * HZ, bcount = 0; time_before(jiffies, end); bcount++) { err = cfs_crypto_hash_digest(hash_alg, buf, buf_len, NULL, 0, @@ -325,7 +336,8 @@ static void cfs_crypto_performance_test(enum cfs_crypto_hash_alg hash_alg, break; } end = jiffies; - + __free_page(page); +out_err: if (err) { cfs_crypto_hash_speeds[hash_alg] = -1; CDEBUG(D_INFO, "Crypto hash algorithm %s, err = %d\n", @@ -381,25 +393,11 @@ EXPORT_SYMBOL(cfs_crypto_hash_speed); */ static int cfs_crypto_test_hashes(void) { - unsigned char i; - unsigned char *data; - unsigned int j; - /* Data block size for testing hash. Maximum - * kmalloc size for 2.6.18 kernel is 128K - */ - unsigned int data_len = 1 * 128 * 1024; - - data = kmalloc(data_len, 0); - if (!data) - return -ENOMEM; - - for (j = 0; j < data_len; j++) - data[j] = j & 0xff; + enum cfs_crypto_hash_alg hash_alg; - for (i = 0; i < CFS_HASH_ALG_MAX; i++) - cfs_crypto_performance_test(i, data, data_len); + for (hash_alg = 0; hash_alg < CFS_HASH_ALG_MAX; hash_alg++) + cfs_crypto_performance_test(hash_alg); - kfree(data); return 0; } -- cgit v0.10.2 From 8260d4e2c72b6fc02ab0bae45f3ed0f259092368 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:54 -0400 Subject: staging: lustre: libcfs: print crypto performance result only on success Only print info about the crypto performance when no error is encounter. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index 4857a11..3d74fd1 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -348,9 +348,10 @@ out_err: tmp = ((bcount * buf_len / jiffies_to_msecs(end - start)) * 1000) / (1024 * 1024); cfs_crypto_hash_speeds[hash_alg] = (int)tmp; + CDEBUG(D_CONFIG, "Crypto hash algorithm %s speed = %d MB/s\n", + cfs_crypto_hash_name(hash_alg), + cfs_crypto_hash_speeds[hash_alg]); } - CDEBUG(D_INFO, "Crypto hash algorithm %s speed = %d MB/s\n", - cfs_crypto_hash_name(hash_alg), cfs_crypto_hash_speeds[hash_alg]); } /** -- cgit v0.10.2 From 78675cb1abec09f1c93f53457b4f7859273d8d0a Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:55 -0400 Subject: staging: lustre: libcfs: improve reporting error for crypto performance Set cfs_crypto_hash_speeds[X] result to the actual error instead of -1. Make the error message more clear and informative. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5053 Reviewed-on: http://review.whamcloud.com/9990 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index 3d74fd1..aec7916 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -339,8 +339,8 @@ static void cfs_crypto_performance_test(enum cfs_crypto_hash_alg hash_alg) __free_page(page); out_err: if (err) { - cfs_crypto_hash_speeds[hash_alg] = -1; - CDEBUG(D_INFO, "Crypto hash algorithm %s, err = %d\n", + cfs_crypto_hash_speeds[hash_alg] = err; + CDEBUG(D_INFO, "Crypto hash algorithm %s test error: rc = %d\n", cfs_crypto_hash_name(hash_alg), err); } else { unsigned long tmp; -- cgit v0.10.2 From 1bc55f796a9872208e19b57fd00f4c484be35318 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Sat, 26 Mar 2016 15:40:56 -0400 Subject: staging: lustre: libcfs: calculate crypto performance using pages Use alloc_page() and use cfs_crypto_hash_update_page() to compute the hash instead of cfs_crypto_hash_digest(), since tgt_checksum_bulk() computes the hash by page anyway. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5279 Reviewed-on: http://review.whamcloud.com/10982 Reviewed-by: John L. Hammond Reviewed-by: James Simmons Reviewed-by: Alexander Boyko Reviewed-by: Bob Glossman Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index aec7916..f8383dc 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -330,8 +330,23 @@ static void cfs_crypto_performance_test(enum cfs_crypto_hash_alg hash_alg) for (start = jiffies, end = start + sec * HZ, bcount = 0; time_before(jiffies, end); bcount++) { - err = cfs_crypto_hash_digest(hash_alg, buf, buf_len, NULL, 0, - hash, &hash_len); + struct cfs_crypto_hash_desc *hdesc; + int i; + + hdesc = cfs_crypto_hash_init(hash_alg, NULL, 0); + if (IS_ERR(hdesc)) { + err = PTR_ERR(hdesc); + break; + } + + for (i = 0; i < buf_len / PAGE_SIZE; i++) { + err = cfs_crypto_hash_update_page(hdesc, page, 0, + PAGE_SIZE); + if (err) + break; + } + + err = cfs_crypto_hash_final(hdesc, hash, &hash_len); if (err) break; } -- cgit v0.10.2 From 78ab125e63115a7f42d598a2113cd75092a40335 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Sun, 27 Mar 2016 12:05:03 -0400 Subject: staging/lustre/libcfs: Copy correct amount in libcfs_ioctl_getdata Commit b8ff756bc351 ("staging: lustre: libcfs: merge code from libcfs_ioctl into libcfs_ioctl_getdata") introduced a problem copying just a single pointer worth of data from userspace instead of whole libcfs_ioctl_hdr structure. Adjust the copying amount. Signed-off-by: Oleg Drokin Acked-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index b86e937..d89f71e 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -128,7 +128,7 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, struct libcfs_ioctl_hdr hdr; int err = 0; - if (copy_from_user(&hdr, uhdr, sizeof(uhdr))) + if (copy_from_user(&hdr, uhdr, sizeof(hdr))) return -EFAULT; if (hdr.ioc_version != LIBCFS_IOCTL_VERSION && -- cgit v0.10.2 From 3404f60d8b54647eff52b6aa03d60ef1ffa3deb2 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sun, 27 Mar 2016 20:26:21 -0400 Subject: staging: lustre: libcfs: remove function declarations in libcfs.h A few function declarations are in libcfs.h that are not needed. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/13874 Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h index d2e4361..332394c 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h @@ -60,15 +60,8 @@ #define LNET_ACCEPTOR_MAX_RESERVED_PORT 1023 /* - * Drop into debugger, if possible. Implementation is provided by platform. - */ - -void cfs_enter_debugger(void); - -/* * Defined by platform */ -int unshare_fs_struct(void); sigset_t cfs_block_allsigs(void); sigset_t cfs_block_sigs(unsigned long sigs); sigset_t cfs_block_sigsinv(unsigned long sigs); -- cgit v0.10.2 From 9af4826aeb4e12ba84a824d516432e223868f3b1 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sun, 27 Mar 2016 20:26:22 -0400 Subject: staging: lustre: libcfs: remove cfs_signal_pending wrapper Use signal_pending() directly instead of a one line function wrapper. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/13874 Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h index 332394c..9158c61 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h @@ -66,7 +66,6 @@ sigset_t cfs_block_allsigs(void); sigset_t cfs_block_sigs(unsigned long sigs); sigset_t cfs_block_sigsinv(unsigned long sigs); void cfs_restore_sigs(sigset_t); -int cfs_signal_pending(void); void cfs_clear_sigpending(void); /* diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c index 8908446..7e5ef0a 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c @@ -128,13 +128,6 @@ cfs_restore_sigs(sigset_t old) } EXPORT_SYMBOL(cfs_restore_sigs); -int -cfs_signal_pending(void) -{ - return signal_pending(current); -} -EXPORT_SYMBOL(cfs_signal_pending); - void cfs_clear_sigpending(void) { diff --git a/drivers/staging/lustre/lustre/include/lustre_lib.h b/drivers/staging/lustre/lustre/include/lustre_lib.h index f2223d5..c5713d7 100644 --- a/drivers/staging/lustre/lustre/include/lustre_lib.h +++ b/drivers/staging/lustre/lustre/include/lustre_lib.h @@ -578,7 +578,7 @@ do { \ \ if (condition) \ break; \ - if (cfs_signal_pending()) { \ + if (signal_pending(current)) { \ if (info->lwi_on_signal && \ (__timeout == 0 || __allow_intr)) { \ if (info->lwi_on_signal != LWI_ON_SIGNAL_NOOP) \ diff --git a/drivers/staging/lustre/lustre/obdclass/cl_lock.c b/drivers/staging/lustre/lustre/obdclass/cl_lock.c index aec644eb..f952c1c 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_lock.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_lock.c @@ -951,7 +951,7 @@ int cl_lock_state_wait(const struct lu_env *env, struct cl_lock *lock) result = -ERESTARTSYS; if (likely(!OBD_FAIL_CHECK(OBD_FAIL_LOCK_STATE_WAIT_INTR))) { schedule(); - if (!cfs_signal_pending()) + if (!signal_pending(current)) result = 0; } diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c index 1b7673e..32a7c87 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/client.c +++ b/drivers/staging/lustre/lustre/ptlrpc/client.c @@ -2087,7 +2087,7 @@ int ptlrpc_set_wait(struct ptlrpc_request_set *set) CDEBUG(D_RPCTRACE, "set %p going to sleep for %d seconds\n", set, timeout); - if (timeout == 0 && !cfs_signal_pending()) + if (timeout == 0 && !signal_pending(current)) /* * No requests are in-flight (ether timed out * or delayed), so we can allow interrupts. @@ -2114,7 +2114,7 @@ int ptlrpc_set_wait(struct ptlrpc_request_set *set) * it being ignored forever */ if (rc == -ETIMEDOUT && !lwi.lwi_allow_intr && - cfs_signal_pending()) { + signal_pending(current)) { sigset_t blocked_sigs = cfs_block_sigsinv(LUSTRE_FATAL_SIGS); @@ -2124,7 +2124,7 @@ int ptlrpc_set_wait(struct ptlrpc_request_set *set) * important signals since ptlrpc set is not easily * reentrant from userspace again */ - if (cfs_signal_pending()) + if (signal_pending(current)) ptlrpc_interrupted_set(set); cfs_restore_sigs(blocked_sigs); } -- cgit v0.10.2 From ccfb80c1861f9480572462b35f75451fc7c3517a Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sun, 27 Mar 2016 20:26:23 -0400 Subject: staging: lustre: libcfs: remove atomic cpt allocations libcfs contains functions to perform atomic memory operations. These functions have never been used so remove them. Signed-off-by: frank zago Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/15913 Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h index dab4862..63e394e 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h @@ -351,12 +351,6 @@ void cfs_percpt_lock_free(struct cfs_percpt_lock *pcl); void cfs_percpt_lock(struct cfs_percpt_lock *pcl, int index); /* unlock private lock \a index of \a pcl */ void cfs_percpt_unlock(struct cfs_percpt_lock *pcl, int index); -/* create percpt (atomic) refcount based on @cptab */ -atomic_t **cfs_percpt_atomic_alloc(struct cfs_cpt_table *cptab, int val); -/* destroy percpt refcount */ -void cfs_percpt_atomic_free(atomic_t **refs); -/* return sum of all percpu refs */ -int cfs_percpt_atomic_summary(atomic_t **refs); /** Compile-time assertion. diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c b/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c index 2de9eea..d38954a 100644 --- a/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c +++ b/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c @@ -142,44 +142,3 @@ cfs_percpt_unlock(struct cfs_percpt_lock *pcl, int index) } } EXPORT_SYMBOL(cfs_percpt_unlock); - -/** free cpu-partition refcount */ -void -cfs_percpt_atomic_free(atomic_t **refs) -{ - cfs_percpt_free(refs); -} -EXPORT_SYMBOL(cfs_percpt_atomic_free); - -/** allocate cpu-partition refcount with initial value @init_val */ -atomic_t ** -cfs_percpt_atomic_alloc(struct cfs_cpt_table *cptab, int init_val) -{ - atomic_t **refs; - atomic_t *ref; - int i; - - refs = cfs_percpt_alloc(cptab, sizeof(*ref)); - if (!refs) - return NULL; - - cfs_percpt_for_each(ref, i, refs) - atomic_set(ref, init_val); - return refs; -} -EXPORT_SYMBOL(cfs_percpt_atomic_alloc); - -/** return sum of cpu-partition refs */ -int -cfs_percpt_atomic_summary(atomic_t **refs) -{ - atomic_t *ref; - int i; - int val = 0; - - cfs_percpt_for_each(ref, i, refs) - val += atomic_read(ref); - - return val; -} -EXPORT_SYMBOL(cfs_percpt_atomic_summary); -- cgit v0.10.2 From a18332b4564318c27cbc11596b2fe8b832e4c6c0 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sun, 27 Mar 2016 20:26:24 -0400 Subject: staging: lustre: libcfs: remove cfs_percpt_[current|index] The functions cfs_percpt_current() and cfs_percpt_index() are not used anywhere. Remove it. Signed-off-by: frank zago Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/15913 Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h index 63e394e..a411527 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h @@ -193,8 +193,6 @@ void *cfs_percpt_alloc(struct cfs_cpt_table *cptab, unsigned int size); */ void cfs_percpt_free(void *vars); int cfs_percpt_number(void *vars); -void *cfs_percpt_current(void *vars); -void *cfs_percpt_index(void *vars, int idx); #define cfs_percpt_for_each(var, i, vars) \ for (i = 0; i < cfs_percpt_number(vars) && \ diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c b/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c index c5a6951..d0e81bb 100644 --- a/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c +++ b/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c @@ -115,34 +115,6 @@ cfs_percpt_number(void *vars) EXPORT_SYMBOL(cfs_percpt_number); /* - * return memory block shadowed from current CPU - */ -void * -cfs_percpt_current(void *vars) -{ - struct cfs_var_array *arr; - int cpt; - - arr = container_of(vars, struct cfs_var_array, va_ptrs[0]); - cpt = cfs_cpt_current(arr->va_cptab, 0); - if (cpt < 0) - return NULL; - - return arr->va_ptrs[cpt]; -} - -void * -cfs_percpt_index(void *vars, int idx) -{ - struct cfs_var_array *arr; - - arr = container_of(vars, struct cfs_var_array, va_ptrs[0]); - - LASSERT(idx >= 0 && idx < arr->va_count); - return arr->va_ptrs[idx]; -} - -/* * free variable array, see more detail in cfs_array_alloc */ void -- cgit v0.10.2 From 762d266d7d27bc00f9249a21feadc03154ab07c7 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sun, 27 Mar 2016 20:26:25 -0400 Subject: staging: lustre: libcfs: move all cpt handling to libcfs_cpu.h Move the CPT handling declartions out of libcfs_private.h to libcfs_cpu.h where it belongs. Signed-off-by: frank zago Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/15913 Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h index 9e62c59..71ad93b 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h @@ -203,6 +203,70 @@ int cfs_cpt_spread_node(struct cfs_cpt_table *cptab, int cpt); */ int cfs_cpu_ht_nsiblings(int cpu); +/* + * allocate per-cpu-partition data, returned value is an array of pointers, + * variable can be indexed by CPU ID. + * cptab != NULL: size of array is number of CPU partitions + * cptab == NULL: size of array is number of HW cores + */ +void *cfs_percpt_alloc(struct cfs_cpt_table *cptab, unsigned int size); +/* + * destory per-cpu-partition variable + */ +void cfs_percpt_free(void *vars); +int cfs_percpt_number(void *vars); + +#define cfs_percpt_for_each(var, i, vars) \ + for (i = 0; i < cfs_percpt_number(vars) && \ + ((var) = (vars)[i]) != NULL; i++) + +/* + * percpu partition lock + * + * There are some use-cases like this in Lustre: + * . each CPU partition has it's own private data which is frequently changed, + * and mostly by the local CPU partition. + * . all CPU partitions share some global data, these data are rarely changed. + * + * LNet is typical example. + * CPU partition lock is designed for this kind of use-cases: + * . each CPU partition has it's own private lock + * . change on private data just needs to take the private lock + * . read on shared data just needs to take _any_ of private locks + * . change on shared data needs to take _all_ private locks, + * which is slow and should be really rare. + */ +enum { + CFS_PERCPT_LOCK_EX = -1, /* negative */ +}; + +struct cfs_percpt_lock { + /* cpu-partition-table for this lock */ + struct cfs_cpt_table *pcl_cptab; + /* exclusively locked */ + unsigned int pcl_locked; + /* private lock table */ + spinlock_t **pcl_locks; +}; + +/* return number of private locks */ +#define cfs_percpt_lock_num(pcl) cfs_cpt_number(pcl->pcl_cptab) + +/* + * create a cpu-partition lock based on CPU partition table \a cptab, + * each private lock has extra \a psize bytes padding data + */ +struct cfs_percpt_lock *cfs_percpt_lock_alloc(struct cfs_cpt_table *cptab); + +/* destroy a cpu-partition lock */ +void cfs_percpt_lock_free(struct cfs_percpt_lock *pcl); + +/* lock private lock \a index of \a pcl */ +void cfs_percpt_lock(struct cfs_percpt_lock *pcl, int index); + +/* unlock private lock \a index of \a pcl */ +void cfs_percpt_unlock(struct cfs_percpt_lock *pcl, int index); + /** * iterate over all CPU partitions in \a cptab */ diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h index a411527..e18b57b 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h @@ -182,23 +182,6 @@ int libcfs_debug_clear_buffer(void); int libcfs_debug_mark_buffer(const char *text); /* - * allocate per-cpu-partition data, returned value is an array of pointers, - * variable can be indexed by CPU ID. - * cptable != NULL: size of array is number of CPU partitions - * cptable == NULL: size of array is number of HW cores - */ -void *cfs_percpt_alloc(struct cfs_cpt_table *cptab, unsigned int size); -/* - * destroy per-cpu-partition variable - */ -void cfs_percpt_free(void *vars); -int cfs_percpt_number(void *vars); - -#define cfs_percpt_for_each(var, i, vars) \ - for (i = 0; i < cfs_percpt_number(vars) && \ - ((var) = (vars)[i]) != NULL; i++) - -/* * allocate a variable array, returned value is an array of pointers. * Caller can specify length of array by count. */ @@ -300,56 +283,6 @@ do { \ #define CFS_ALLOC_PTR(ptr) LIBCFS_ALLOC(ptr, sizeof(*(ptr))) #define CFS_FREE_PTR(ptr) LIBCFS_FREE(ptr, sizeof(*(ptr))) -/* - * percpu partition lock - * - * There are some use-cases like this in Lustre: - * . each CPU partition has it's own private data which is frequently changed, - * and mostly by the local CPU partition. - * . all CPU partitions share some global data, these data are rarely changed. - * - * LNet is typical example. - * CPU partition lock is designed for this kind of use-cases: - * . each CPU partition has it's own private lock - * . change on private data just needs to take the private lock - * . read on shared data just needs to take _any_ of private locks - * . change on shared data needs to take _all_ private locks, - * which is slow and should be really rare. - */ - -enum { - CFS_PERCPT_LOCK_EX = -1, /* negative */ -}; - -struct cfs_percpt_lock { - /* cpu-partition-table for this lock */ - struct cfs_cpt_table *pcl_cptab; - /* exclusively locked */ - unsigned int pcl_locked; - /* private lock table */ - spinlock_t **pcl_locks; -}; - -/* return number of private locks */ -static inline int -cfs_percpt_lock_num(struct cfs_percpt_lock *pcl) -{ - return cfs_cpt_number(pcl->pcl_cptab); -} - -/* - * create a cpu-partition lock based on CPU partition table \a cptab, - * each private lock has extra \a psize bytes padding data - */ -struct cfs_percpt_lock *cfs_percpt_lock_alloc(struct cfs_cpt_table *cptab); -/* destroy a cpu-partition lock */ -void cfs_percpt_lock_free(struct cfs_percpt_lock *pcl); - -/* lock private lock \a index of \a pcl */ -void cfs_percpt_lock(struct cfs_percpt_lock *pcl, int index); -/* unlock private lock \a index of \a pcl */ -void cfs_percpt_unlock(struct cfs_percpt_lock *pcl, int index); - /** Compile-time assertion. * Check an invariant described by a constant expression at compile time by -- cgit v0.10.2 From 2dc09ea8d91a97dd01c675f2903ce5b4d1fd48d3 Mon Sep 17 00:00:00 2001 From: Liang Zhen Date: Sun, 27 Mar 2016 20:26:26 -0400 Subject: staging: lustre: libcfs: add lock-class for cfs_percpt_lock initialise lock-class for each sublock of cfs_percpt_lock to eliminate false alarm ""possible recursive locking detected" Signed-off-by: Liang Zhen Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6432 Reviewed-on: http://review.whamcloud.com/14368 Reviewed-by: James Simmons Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h index 71ad93b..81d8079 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h @@ -256,8 +256,8 @@ struct cfs_percpt_lock { * create a cpu-partition lock based on CPU partition table \a cptab, * each private lock has extra \a psize bytes padding data */ -struct cfs_percpt_lock *cfs_percpt_lock_alloc(struct cfs_cpt_table *cptab); - +struct cfs_percpt_lock *cfs_percpt_lock_create(struct cfs_cpt_table *cptab, + struct lock_class_key *keys); /* destroy a cpu-partition lock */ void cfs_percpt_lock_free(struct cfs_percpt_lock *pcl); @@ -267,6 +267,21 @@ void cfs_percpt_lock(struct cfs_percpt_lock *pcl, int index); /* unlock private lock \a index of \a pcl */ void cfs_percpt_unlock(struct cfs_percpt_lock *pcl, int index); +#define CFS_PERCPT_LOCK_KEYS 256 + +/* NB: don't allocate keys dynamically, lockdep needs them to be in ".data" */ +#define cfs_percpt_lock_alloc(cptab) \ +({ \ + static struct lock_class_key ___keys[CFS_PERCPT_LOCK_KEYS]; \ + struct cfs_percpt_lock *___lk; \ + \ + if (cfs_cpt_number(cptab) > CFS_PERCPT_LOCK_KEYS) \ + ___lk = cfs_percpt_lock_create(cptab, NULL); \ + else \ + ___lk = cfs_percpt_lock_create(cptab, ___keys); \ + ___lk; \ +}) + /** * iterate over all CPU partitions in \a cptab */ diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c b/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c index d38954a..83543f9 100644 --- a/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c +++ b/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c @@ -49,7 +49,8 @@ EXPORT_SYMBOL(cfs_percpt_lock_free); * reason we always allocate cacheline-aligned memory block. */ struct cfs_percpt_lock * -cfs_percpt_lock_alloc(struct cfs_cpt_table *cptab) +cfs_percpt_lock_create(struct cfs_cpt_table *cptab, + struct lock_class_key *keys) { struct cfs_percpt_lock *pcl; spinlock_t *lock; @@ -67,12 +68,18 @@ cfs_percpt_lock_alloc(struct cfs_cpt_table *cptab) return NULL; } - cfs_percpt_for_each(lock, i, pcl->pcl_locks) + if (!keys) + CWARN("Cannot setup class key for percpt lock, you may see recursive locking warnings which are actually fake.\n"); + + cfs_percpt_for_each(lock, i, pcl->pcl_locks) { spin_lock_init(lock); + if (keys != NULL) + lockdep_set_class(lock, &keys[i]); + } return pcl; } -EXPORT_SYMBOL(cfs_percpt_lock_alloc); +EXPORT_SYMBOL(cfs_percpt_lock_create); /** * lock a CPU partition -- cgit v0.10.2 From 304d13ff4d5dcccea2cf199d96d6716de31b7321 Mon Sep 17 00:00:00 2001 From: Jian Yu Date: Sun, 27 Mar 2016 20:26:27 -0400 Subject: staging: lustre: libcfs: replace direct HZ access with kernel APIs On some customers' systems, the kernel was compiled with HZ defined to 100, instead of 1000. This improves performance for HPC applications. However, to use these systems with Lustre, customers have to re-build Lustre for the kernel because Lustre directly uses the defined constant HZ. Since kernel 2.6.21, some non-HZ dependent timing APIs become non- inline functions, which can be used in Lustre codes to replace the direct HZ access. These kernel APIs include: jiffies_to_msecs() jiffies_to_usecs() jiffies_to_timespec() msecs_to_jiffies() usecs_to_jiffies() timespec_to_jiffies() And here are some samples of the replacement: HZ -> msecs_to_jiffies(MSEC_PER_SEC) n * HZ -> msecs_to_jiffies(n * MSEC_PER_SEC) HZ / n -> msecs_to_jiffies(MSEC_PER_SEC / n) n / HZ -> jiffies_to_msecs(n) / MSEC_PER_SEC n / HZ * 1000 -> jiffies_to_msecs(n) This patch replaces the direct HZ access in the libcfs module. Signed-off-by: Jian Yu Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5443 Reviewed-on: http://review.whamcloud.com/11993 Reviewed-by: Nathaniel Clark Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h index ed8764b..7656b09 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h @@ -70,12 +70,12 @@ static inline unsigned long cfs_time_current(void) static inline long cfs_time_seconds(int seconds) { - return ((long)seconds) * HZ; + return ((long)seconds) * msecs_to_jiffies(MSEC_PER_SEC); } static inline long cfs_duration_sec(long d) { - return d / HZ; + return d / msecs_to_jiffies(MSEC_PER_SEC); } #define cfs_time_current_64 get_jiffies_64 diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index f8383dc..0715101 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -313,7 +313,6 @@ static void cfs_crypto_performance_test(enum cfs_crypto_hash_alg hash_alg) void *buf; unsigned long start, end; int bcount, err = 0; - int sec = 1; /* do test only 1 sec */ struct page *page; unsigned char hash[CFS_CRYPTO_HASH_DIGESTSIZE_MAX]; unsigned int hash_len = sizeof(hash); @@ -328,8 +327,8 @@ static void cfs_crypto_performance_test(enum cfs_crypto_hash_alg hash_alg) memset(buf, 0xAD, PAGE_SIZE); kunmap(page); - for (start = jiffies, end = start + sec * HZ, bcount = 0; - time_before(jiffies, end); bcount++) { + for (start = jiffies, end = start + msecs_to_jiffies(MSEC_PER_SEC), + bcount = 0; time_before(jiffies, end); bcount++) { struct cfs_crypto_hash_desc *hdesc; int i; -- cgit v0.10.2 From d47b7026ba96f604318e46354e8ec129f9b960d7 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sun, 27 Mar 2016 20:26:28 -0400 Subject: staging: lustre: libcfs: add CFS_FAULT_CHECK() Add the macro CFS_FAULT_CHECK() which behaves like CFS_FAIL_CHECK() except that any site may be matched by setting CFS_FAULT (0x02000000) in cfs_fail_loc. Add cfs_fail_err for use as a return value with CFS_FAULT_CHECK(). Signed-off-by: John L. Hammond Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5409 Reviewed-on: http://review.whamcloud.com/11263 Reviewed-by: Robert Read Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h index aa69c6a..2e008bf 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h @@ -38,6 +38,7 @@ extern unsigned long cfs_fail_loc; extern unsigned int cfs_fail_val; +extern int cfs_fail_err; extern wait_queue_head_t cfs_race_waitq; extern int cfs_race_state; @@ -70,9 +71,14 @@ enum { #define CFS_FAIL_RAND 0x08000000 /* fail 1/N of the times */ #define CFS_FAIL_USR1 0x04000000 /* user flag */ -#define CFS_FAIL_PRECHECK(id) (cfs_fail_loc && \ - (cfs_fail_loc & CFS_FAIL_MASK_LOC) == \ - ((id) & CFS_FAIL_MASK_LOC)) +#define CFS_FAULT 0x02000000 /* match any CFS_FAULT_CHECK */ + +static inline bool CFS_FAIL_PRECHECK(__u32 id) +{ + return cfs_fail_loc != 0 && + ((cfs_fail_loc & CFS_FAIL_MASK_LOC) == (id & CFS_FAIL_MASK_LOC) || + (cfs_fail_loc & id & CFS_FAULT)); +} static inline int cfs_fail_check_set(__u32 id, __u32 value, int set, int quiet) @@ -144,6 +150,9 @@ static inline int cfs_fail_timeout_set(__u32 id, __u32 value, int ms, int set) #define CFS_FAIL_TIMEOUT_MS_ORSET(id, value, ms) \ cfs_fail_timeout_set(id, value, ms, CFS_FAIL_LOC_ORSET) +#define CFS_FAULT_CHECK(id) \ + CFS_FAIL_CHECK(CFS_FAULT | (id)) + /* The idea here is to synchronise two threads to force a race. The * first thread that calls this with a matching fail_loc is put to * sleep. The next thread that calls with the same fail_loc wakes up diff --git a/drivers/staging/lustre/lnet/libcfs/fail.c b/drivers/staging/lustre/lnet/libcfs/fail.c index dadaf76..086e690 100644 --- a/drivers/staging/lustre/lnet/libcfs/fail.c +++ b/drivers/staging/lustre/lnet/libcfs/fail.c @@ -41,6 +41,9 @@ EXPORT_SYMBOL(cfs_fail_loc); unsigned int cfs_fail_val; EXPORT_SYMBOL(cfs_fail_val); +int cfs_fail_err; +EXPORT_SYMBOL(cfs_fail_err); + DECLARE_WAIT_QUEUE_HEAD(cfs_race_waitq); EXPORT_SYMBOL(cfs_race_waitq); diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 49c2d03..f2d0411 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -425,6 +425,13 @@ static struct ctl_table lnet_table[] = { .proc_handler = &proc_dointvec }, { + .procname = "fail_err", + .data = &cfs_fail_err, + .maxlen = sizeof(cfs_fail_err), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { } }; -- cgit v0.10.2 From 5d145b1ad404e8cb260283d8a8b0747261698c73 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Sun, 27 Mar 2016 20:26:29 -0400 Subject: staging: lustre: libcfs: remove cfs_workitem_t typedefs Convert cfs_workitem_t to proper structure. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/17202 Reviewed-by: John L. Hammond Reviewed-by: Dmitry Eremin Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h index c3f2332..119986b 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h @@ -245,7 +245,7 @@ struct cfs_hash { /** # of iterators (caller of cfs_hash_for_each_*) */ __u32 hs_iterators; /** rehash workitem */ - cfs_workitem_t hs_rehash_wi; + struct cfs_workitem hs_rehash_wi; /** refcount on this hash table */ atomic_t hs_refcount; /** rehash buckets-table */ @@ -262,7 +262,7 @@ struct cfs_hash { /** bits when we found the max depth */ unsigned int hs_dep_bits; /** workitem to output max depth */ - cfs_workitem_t hs_dep_wi; + struct cfs_workitem hs_dep_wi; #endif /** name of htable */ char hs_name[0]; diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h index 5cc64f3..f9b20c5 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h @@ -73,7 +73,7 @@ int cfs_wi_sched_create(char *name, struct cfs_cpt_table *cptab, int cpt, struct cfs_workitem; typedef int (*cfs_wi_action_t) (struct cfs_workitem *); -typedef struct cfs_workitem { +struct cfs_workitem { /** chain on runq or rerunq */ struct list_head wi_list; /** working function */ @@ -84,10 +84,10 @@ typedef struct cfs_workitem { unsigned short wi_running:1; /** scheduled */ unsigned short wi_scheduled:1; -} cfs_workitem_t; +}; static inline void -cfs_wi_init(cfs_workitem_t *wi, void *data, cfs_wi_action_t action) +cfs_wi_init(struct cfs_workitem *wi, void *data, cfs_wi_action_t action) { INIT_LIST_HEAD(&wi->wi_list); @@ -97,9 +97,9 @@ cfs_wi_init(cfs_workitem_t *wi, void *data, cfs_wi_action_t action) wi->wi_action = action; } -void cfs_wi_schedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi); -int cfs_wi_deschedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi); -void cfs_wi_exit(struct cfs_wi_sched *sched, cfs_workitem_t *wi); +void cfs_wi_schedule(struct cfs_wi_sched *sched, struct cfs_workitem *wi); +int cfs_wi_deschedule(struct cfs_wi_sched *sched, struct cfs_workitem *wi); +void cfs_wi_exit(struct cfs_wi_sched *sched, struct cfs_workitem *wi); int cfs_wi_startup(void); void cfs_wi_shutdown(void); diff --git a/drivers/staging/lustre/lnet/libcfs/hash.c b/drivers/staging/lustre/lnet/libcfs/hash.c index f60feb3..cc45ed8 100644 --- a/drivers/staging/lustre/lnet/libcfs/hash.c +++ b/drivers/staging/lustre/lnet/libcfs/hash.c @@ -942,10 +942,10 @@ cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts, * @flags - CFS_HASH_REHASH enable synamic hash resizing * - CFS_HASH_SORT enable chained hash sort */ -static int cfs_hash_rehash_worker(cfs_workitem_t *wi); +static int cfs_hash_rehash_worker(struct cfs_workitem *wi); #if CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1 -static int cfs_hash_dep_print(cfs_workitem_t *wi) +static int cfs_hash_dep_print(struct cfs_workitem *wi) { struct cfs_hash *hs = container_of(wi, struct cfs_hash, hs_dep_wi); int dep; @@ -1847,7 +1847,7 @@ cfs_hash_rehash_bd(struct cfs_hash *hs, struct cfs_hash_bd *old) } static int -cfs_hash_rehash_worker(cfs_workitem_t *wi) +cfs_hash_rehash_worker(struct cfs_workitem *wi) { struct cfs_hash *hs = container_of(wi, struct cfs_hash, hs_rehash_wi); struct cfs_hash_bucket **bkts; diff --git a/drivers/staging/lustre/lnet/libcfs/workitem.c b/drivers/staging/lustre/lnet/libcfs/workitem.c index c72fe00..92236ae 100644 --- a/drivers/staging/lustre/lnet/libcfs/workitem.c +++ b/drivers/staging/lustre/lnet/libcfs/workitem.c @@ -111,7 +111,7 @@ cfs_wi_sched_cansleep(struct cfs_wi_sched *sched) * 1. when it returns no one shall try to schedule the workitem. */ void -cfs_wi_exit(struct cfs_wi_sched *sched, cfs_workitem_t *wi) +cfs_wi_exit(struct cfs_wi_sched *sched, struct cfs_workitem *wi) { LASSERT(!in_interrupt()); /* because we use plain spinlock */ LASSERT(!sched->ws_stopping); @@ -138,7 +138,7 @@ EXPORT_SYMBOL(cfs_wi_exit); * cancel schedule request of workitem \a wi */ int -cfs_wi_deschedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi) +cfs_wi_deschedule(struct cfs_wi_sched *sched, struct cfs_workitem *wi) { int rc; @@ -179,7 +179,7 @@ EXPORT_SYMBOL(cfs_wi_deschedule); * be added, and even dynamic creation of serialised queues might be supported. */ void -cfs_wi_schedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi) +cfs_wi_schedule(struct cfs_wi_sched *sched, struct cfs_workitem *wi) { LASSERT(!in_interrupt()); /* because we use plain spinlock */ LASSERT(!sched->ws_stopping); @@ -229,12 +229,12 @@ static int cfs_wi_scheduler(void *arg) while (!sched->ws_stopping) { int nloops = 0; int rc; - cfs_workitem_t *wi; + struct cfs_workitem *wi; while (!list_empty(&sched->ws_runq) && nloops < CFS_WI_RESCHED) { - wi = list_entry(sched->ws_runq.next, cfs_workitem_t, - wi_list); + wi = list_entry(sched->ws_runq.next, + struct cfs_workitem, wi_list); LASSERT(wi->wi_scheduled && !wi->wi_running); list_del_init(&wi->wi_list); diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 288522d..f50580e 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -176,7 +176,7 @@ typedef int (*swi_action_t) (struct swi_workitem *); typedef struct swi_workitem { struct cfs_wi_sched *swi_sched; - cfs_workitem_t swi_workitem; + struct cfs_workitem swi_workitem; swi_action_t swi_action; int swi_state; } swi_workitem_t; @@ -461,7 +461,7 @@ srpc_serv_is_framework(struct srpc_service *svc) } static inline int -swi_wi_action(cfs_workitem_t *wi) +swi_wi_action(struct cfs_workitem *wi) { swi_workitem_t *swi = container_of(wi, swi_workitem_t, swi_workitem); -- cgit v0.10.2 From 70011f5f2cbdadb52536ae752d2a4d59189df03f Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 28 Mar 2016 13:55:56 +0900 Subject: staging: wilc1000: change data type of wid argument in wilc_wlan_cfg_set This patch changes data type of wid argument in wilc_wlan_cfg_set from u32 to u16. It is better to change data type of wid because wid has one of enum WID_T that is data type of u16. And, there is no need to use u16 type casting when calling wilc_wlan_cfg_set_wid function. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c index 30e1c03..d09aa3b 100644 --- a/drivers/staging/wilc1000/wilc_wlan.c +++ b/drivers/staging/wilc1000/wilc_wlan.c @@ -1197,7 +1197,7 @@ static int wilc_wlan_cfg_commit(struct wilc_vif *vif, int type, return 0; } -int wilc_wlan_cfg_set(struct wilc_vif *vif, int start, u32 wid, u8 *buffer, +int wilc_wlan_cfg_set(struct wilc_vif *vif, int start, u16 wid, u8 *buffer, u32 buffer_size, int commit, u32 drv_handler) { u32 offset; @@ -1212,7 +1212,7 @@ int wilc_wlan_cfg_set(struct wilc_vif *vif, int start, u32 wid, u8 *buffer, offset = wilc->cfg_frame_offset; ret_size = wilc_wlan_cfg_set_wid(wilc->cfg_frame.frame, offset, - (u16)wid, buffer, buffer_size); + wid, buffer, buffer_size); offset += ret_size; wilc->cfg_frame_offset = offset; diff --git a/drivers/staging/wilc1000/wilc_wlan.h b/drivers/staging/wilc1000/wilc_wlan.h index bcd4bfa..ef70642 100644 --- a/drivers/staging/wilc1000/wilc_wlan.h +++ b/drivers/staging/wilc1000/wilc_wlan.h @@ -284,7 +284,7 @@ int wilc_wlan_txq_add_net_pkt(struct net_device *dev, void *priv, u8 *buffer, int wilc_wlan_handle_txq(struct net_device *dev, u32 *txq_count); void wilc_handle_isr(struct wilc *wilc); void wilc_wlan_cleanup(struct net_device *dev); -int wilc_wlan_cfg_set(struct wilc_vif *vif, int start, u32 wid, u8 *buffer, +int wilc_wlan_cfg_set(struct wilc_vif *vif, int start, u16 wid, u8 *buffer, u32 buffer_size, int commit, u32 drv_handler); int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u32 wid, int commit, u32 drv_handler); -- cgit v0.10.2 From 7db699dbe5107073050c123b05495e9c271f62fe Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 28 Mar 2016 13:55:57 +0900 Subject: staging: wilc1000: change data type of wid argument in wilc_wlan_cfg_get This patch changes data type of wid argument in wilc_wlan_cfg_get from u32 to u16. It is better to change data type of wid because wid has one of enum WID_T that is data type of u16. And, there is no need to use u16 type casting when calling wilc_wlan_cfg_get_wid function. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c index d09aa3b..db79ae2 100644 --- a/drivers/staging/wilc1000/wilc_wlan.c +++ b/drivers/staging/wilc1000/wilc_wlan.c @@ -1239,7 +1239,7 @@ int wilc_wlan_cfg_set(struct wilc_vif *vif, int start, u16 wid, u8 *buffer, return ret_size; } -int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u32 wid, int commit, +int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u16 wid, int commit, u32 drv_handler) { u32 offset; @@ -1253,8 +1253,7 @@ int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u32 wid, int commit, wilc->cfg_frame_offset = 0; offset = wilc->cfg_frame_offset; - ret_size = wilc_wlan_cfg_get_wid(wilc->cfg_frame.frame, offset, - (u16)wid); + ret_size = wilc_wlan_cfg_get_wid(wilc->cfg_frame.frame, offset, wid); offset += ret_size; wilc->cfg_frame_offset = offset; diff --git a/drivers/staging/wilc1000/wilc_wlan.h b/drivers/staging/wilc1000/wilc_wlan.h index ef70642..38edeeb 100644 --- a/drivers/staging/wilc1000/wilc_wlan.h +++ b/drivers/staging/wilc1000/wilc_wlan.h @@ -286,7 +286,7 @@ void wilc_handle_isr(struct wilc *wilc); void wilc_wlan_cleanup(struct net_device *dev); int wilc_wlan_cfg_set(struct wilc_vif *vif, int start, u16 wid, u8 *buffer, u32 buffer_size, int commit, u32 drv_handler); -int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u32 wid, int commit, +int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u16 wid, int commit, u32 drv_handler); int wilc_wlan_cfg_get_val(u32 wid, u8 *buffer, u32 buffer_size); int wilc_wlan_txq_add_mgmt_pkt(struct net_device *dev, void *priv, u8 *buffer, -- cgit v0.10.2 From c975f9dd106461794d339348e2f4b4812d154875 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 28 Mar 2016 13:55:58 +0900 Subject: staging: wilc1000: change data type of wid argument in wilc_wlan_cfg_get_val This patch changes data type of wid argument in wilc_wlan_cfg_get_val from u32 to u16. It is better to change data type of wid because wid has one of enum WID_T that is data type of u16. And, there is no need to use u16 type casting when calling wilc_wlan_cfg_get_wid_value function. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c index db79ae2..7da3b4a 100644 --- a/drivers/staging/wilc1000/wilc_wlan.c +++ b/drivers/staging/wilc1000/wilc_wlan.c @@ -1276,9 +1276,9 @@ int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u16 wid, int commit, return ret_size; } -int wilc_wlan_cfg_get_val(u32 wid, u8 *buffer, u32 buffer_size) +int wilc_wlan_cfg_get_val(u16 wid, u8 *buffer, u32 buffer_size) { - return wilc_wlan_cfg_get_wid_value((u16)wid, buffer, buffer_size); + return wilc_wlan_cfg_get_wid_value(wid, buffer, buffer_size); } int wilc_send_config_pkt(struct wilc_vif *vif, u8 mode, struct wid *wids, diff --git a/drivers/staging/wilc1000/wilc_wlan.h b/drivers/staging/wilc1000/wilc_wlan.h index 38edeeb..30e5312 100644 --- a/drivers/staging/wilc1000/wilc_wlan.h +++ b/drivers/staging/wilc1000/wilc_wlan.h @@ -288,7 +288,7 @@ int wilc_wlan_cfg_set(struct wilc_vif *vif, int start, u16 wid, u8 *buffer, u32 buffer_size, int commit, u32 drv_handler); int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u16 wid, int commit, u32 drv_handler); -int wilc_wlan_cfg_get_val(u32 wid, u8 *buffer, u32 buffer_size); +int wilc_wlan_cfg_get_val(u16 wid, u8 *buffer, u32 buffer_size); int wilc_wlan_txq_add_mgmt_pkt(struct net_device *dev, void *priv, u8 *buffer, u32 buffer_size, wilc_tx_complete_func_t func); void wilc_chip_sleep_manually(struct wilc *wilc); -- cgit v0.10.2 From 589c667d8ae1d7359a974719dd0d09f85aee5606 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 28 Mar 2016 13:55:59 +0900 Subject: staging: wilc1000: remove unused struct semaphore SemHandleUpdateStats struct semaphore SemHandleUpdateStats is defined but never used in this driver, so just remove it. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 5785dda..f6aec47 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -2262,7 +2262,6 @@ struct wireless_dev *wilc_create_wiphy(struct net_device *net, struct device *de } priv = wdev_priv(wdev); - sema_init(&(priv->SemHandleUpdateStats), 1); priv->wdev = wdev; wdev->wiphy->max_scan_ssids = MAX_NUM_PROBED_SSID; #ifdef CONFIG_PM diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h index debb139..94a41b4 100644 --- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h +++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h @@ -130,7 +130,6 @@ struct wilc_priv { struct wilc_wfi_key *wilc_ptk[MAX_NUM_STA]; u8 wilc_groupkey; /* semaphores */ - struct semaphore SemHandleUpdateStats; struct semaphore hSemScanReq; /* */ bool gbAutoRateAdjusted; -- cgit v0.10.2 From 086620978b2d06378f4a41afce2f7705c76a4625 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 28 Mar 2016 13:56:00 +0900 Subject: staging: wilc1000: use mutex instead of struct semaphore hSemScanReq This patch replaces struct semaphore hSemScanReq with struct mutex scan_req_lock. It is better to use mutex than semaphore. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index f6aec47..358632b 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -451,7 +451,7 @@ static void CfgScanResult(enum scan_event scan_event, } else if (scan_event == SCAN_EVENT_DONE) { refresh_scan(priv, 1, false); - down(&(priv->hSemScanReq)); + mutex_lock(&priv->scan_req_lock); if (priv->pstrScanReq) { cfg80211_scan_done(priv->pstrScanReq, false); @@ -459,9 +459,9 @@ static void CfgScanResult(enum scan_event scan_event, priv->bCfgScanning = false; priv->pstrScanReq = NULL; } - up(&(priv->hSemScanReq)); + mutex_unlock(&priv->scan_req_lock); } else if (scan_event == SCAN_EVENT_ABORTED) { - down(&(priv->hSemScanReq)); + mutex_lock(&priv->scan_req_lock); if (priv->pstrScanReq) { update_scan_time(); @@ -471,7 +471,7 @@ static void CfgScanResult(enum scan_event scan_event, priv->bCfgScanning = false; priv->pstrScanReq = NULL; } - up(&(priv->hSemScanReq)); + mutex_unlock(&priv->scan_req_lock); } } } @@ -2307,7 +2307,7 @@ int wilc_init_host_int(struct net_device *net) priv->bInP2PlistenState = false; - sema_init(&(priv->hSemScanReq), 1); + mutex_init(&priv->scan_req_lock); s32Error = wilc_init(net, &priv->hif_drv); if (s32Error) netdev_err(net, "Error while initializing hostinterface\n"); diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h index 94a41b4..3d0ca8e 100644 --- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h +++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h @@ -130,7 +130,7 @@ struct wilc_priv { struct wilc_wfi_key *wilc_ptk[MAX_NUM_STA]; u8 wilc_groupkey; /* semaphores */ - struct semaphore hSemScanReq; + struct mutex scan_req_lock; /* */ bool gbAutoRateAdjusted; -- cgit v0.10.2 From ff3334276744ad49477e60c3c9e6acec8399b25d Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 28 Mar 2016 16:51:17 -0700 Subject: staging: skein: Convert local rotl_64 to kernel's rol64 Remove the local inline and use the generic kernel rol64 instead. Miscellanea: o Added a newline between a multiple line macro for consistency with the other multiple line macros Signed-off-by: Joe Perches Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/skein/skein_base.h b/drivers/staging/skein/skein_base.h index 3c7f8ad..9c4be1a 100644 --- a/drivers/staging/skein/skein_base.h +++ b/drivers/staging/skein/skein_base.h @@ -84,11 +84,6 @@ struct skein_1024_ctx { /* 1024-bit Skein hash context structure */ u8 b[SKEIN_1024_BLOCK_BYTES]; /* partial block buf (8-byte aligned) */ }; -static inline u64 rotl_64(u64 x, u8 N) -{ - return (x << N) | (x >> (64 - N)); -} - /* Skein APIs for (incremental) "straight hashing" */ int skein_256_init(struct skein_256_ctx *ctx, size_t hash_bit_len); int skein_512_init(struct skein_512_ctx *ctx, size_t hash_bit_len); diff --git a/drivers/staging/skein/skein_block.c b/drivers/staging/skein/skein_block.c index 45b4732..1a547b30 100644 --- a/drivers/staging/skein/skein_block.c +++ b/drivers/staging/skein/skein_block.c @@ -15,6 +15,7 @@ ************************************************************************/ #include +#include #include "skein_base.h" #include "skein_block.h" @@ -59,10 +60,10 @@ #define ROUND256(p0, p1, p2, p3, ROT, r_num) \ do { \ X##p0 += X##p1; \ - X##p1 = rotl_64(X##p1, ROT##_0); \ + X##p1 = rol64(X##p1, ROT##_0); \ X##p1 ^= X##p0; \ X##p2 += X##p3; \ - X##p3 = rotl_64(X##p3, ROT##_1); \ + X##p3 = rol64(X##p3, ROT##_1); \ X##p3 ^= X##p2; \ } while (0) @@ -136,15 +137,16 @@ #define ROUND512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) \ do { \ X##p0 += X##p1; \ - X##p1 = rotl_64(X##p1, ROT##_0); \ + X##p1 = rol64(X##p1, ROT##_0); \ X##p1 ^= X##p0; \ X##p2 += X##p3; \ - X##p3 = rotl_64(X##p3, ROT##_1); \ + X##p3 = rol64(X##p3, ROT##_1); \ X##p3 ^= X##p2; \ X##p4 += X##p5; \ - X##p5 = rotl_64(X##p5, ROT##_2); \ + X##p5 = rol64(X##p5, ROT##_2); \ X##p5 ^= X##p4; \ - X##p6 += X##p7; X##p7 = rotl_64(X##p7, ROT##_3);\ + X##p6 += X##p7; \ + X##p7 = rol64(X##p7, ROT##_3); \ X##p7 ^= X##p6; \ } while (0) @@ -226,28 +228,28 @@ pF, ROT, r_num) \ do { \ X##p0 += X##p1; \ - X##p1 = rotl_64(X##p1, ROT##_0); \ + X##p1 = rol64(X##p1, ROT##_0); \ X##p1 ^= X##p0; \ X##p2 += X##p3; \ - X##p3 = rotl_64(X##p3, ROT##_1); \ + X##p3 = rol64(X##p3, ROT##_1); \ X##p3 ^= X##p2; \ X##p4 += X##p5; \ - X##p5 = rotl_64(X##p5, ROT##_2); \ + X##p5 = rol64(X##p5, ROT##_2); \ X##p5 ^= X##p4; \ X##p6 += X##p7; \ - X##p7 = rotl_64(X##p7, ROT##_3); \ + X##p7 = rol64(X##p7, ROT##_3); \ X##p7 ^= X##p6; \ X##p8 += X##p9; \ - X##p9 = rotl_64(X##p9, ROT##_4); \ + X##p9 = rol64(X##p9, ROT##_4); \ X##p9 ^= X##p8; \ X##pA += X##pB; \ - X##pB = rotl_64(X##pB, ROT##_5); \ + X##pB = rol64(X##pB, ROT##_5); \ X##pB ^= X##pA; \ X##pC += X##pD; \ - X##pD = rotl_64(X##pD, ROT##_6); \ + X##pD = rol64(X##pD, ROT##_6); \ X##pD ^= X##pC; \ X##pE += X##pF; \ - X##pF = rotl_64(X##pF, ROT##_7); \ + X##pF = rol64(X##pF, ROT##_7); \ X##pF ^= X##pE; \ } while (0) -- cgit v0.10.2 From d3d62d1d6c479dd2058694c36b7d7d54cbe3d42f Mon Sep 17 00:00:00 2001 From: Clifton Barnes Date: Sun, 27 Mar 2016 15:13:00 -0400 Subject: staging: xgifb: fix 'line over 80 characters' fix checkpatch.pl warning about 'line over 80 characters' Signed-off-by: Clifton Barnes Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/xgifb/vb_init.c b/drivers/staging/xgifb/vb_init.c index 26b539b..29da955 100644 --- a/drivers/staging/xgifb/vb_init.c +++ b/drivers/staging/xgifb/vb_init.c @@ -551,7 +551,8 @@ static int XGINew_ReadWriteRest(unsigned short StopAddr, writel(Position, fbaddr + Position); } - usleep_range(500, 1500); /* Fix #1759 Memory Size error in Multi-Adapter. */ + /* Fix #1759 Memory Size error in Multi-Adapter. */ + usleep_range(500, 1500); Position = 0; -- cgit v0.10.2 From c3f0692aeed9e79f52c53284df7471aeb8006b43 Mon Sep 17 00:00:00 2001 From: Clifton Barnes Date: Sun, 27 Mar 2016 15:13:01 -0400 Subject: staging: xgifb: fix code indent fix checkpatch.pl warning about 'suspect code indent for conditional statements' Signed-off-by: Clifton Barnes Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c index 40939c8..cc1ad76 100644 --- a/drivers/staging/xgifb/vb_setmode.c +++ b/drivers/staging/xgifb/vb_setmode.c @@ -108,9 +108,9 @@ static void XGI_SetATTRegs(unsigned short ModeIdIndex, if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) { ARdata = 0; } else if ((pVBInfo->VBInfo & - (SetCRT2ToTV | SetCRT2ToLCD)) && - (pVBInfo->VBInfo & SetInSlaveMode)) { - ARdata = 0; + (SetCRT2ToTV | SetCRT2ToLCD)) && + (pVBInfo->VBInfo & SetInSlaveMode)) { + ARdata = 0; } } @@ -2983,7 +2983,7 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex, if ((pVBInfo->VBInfo & SetCRT2ToHiVision) && !(pVBInfo->VBType & VB_SIS301LV) && (resinfo == 7)) - temp -= 2; + temp -= 2; } /* 0x05 Horizontal Display Start */ -- cgit v0.10.2 From d312007698241b79153d5ac101bddb14fa9c4956 Mon Sep 17 00:00:00 2001 From: Clifton Barnes Date: Sun, 27 Mar 2016 15:13:03 -0400 Subject: staging: xgifb: fix bare use of 'unsigned' fix checkpatch.pl warning about 'Prefer 'unsigned int' to bare use of 'unsigned'' Signed-off-by: Clifton Barnes Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c index 7eadf92..d56ef14 100644 --- a/drivers/staging/xgifb/XGI_main_26.c +++ b/drivers/staging/xgifb/XGI_main_26.c @@ -1130,8 +1130,9 @@ static int XGIfb_get_cmap_len(const struct fb_var_screeninfo *var) return (var->bits_per_pixel == 8) ? 256 : 16; } -static int XGIfb_setcolreg(unsigned regno, unsigned red, unsigned green, - unsigned blue, unsigned transp, struct fb_info *info) +static int XGIfb_setcolreg(unsigned int regno, unsigned int red, + unsigned int green, unsigned int blue, + unsigned int transp, struct fb_info *info) { struct xgifb_video_info *xgifb_info = info->par; diff --git a/drivers/staging/xgifb/vb_util.h b/drivers/staging/xgifb/vb_util.h index f613f54..08db58b 100644 --- a/drivers/staging/xgifb/vb_util.h +++ b/drivers/staging/xgifb/vb_util.h @@ -13,7 +13,7 @@ static inline u8 xgifb_reg_get(unsigned long port, u8 index) } static inline void xgifb_reg_and_or(unsigned long port, u8 index, - unsigned data_and, unsigned data_or) + unsigned int data_and, unsigned int data_or) { u8 temp; @@ -22,7 +22,8 @@ static inline void xgifb_reg_and_or(unsigned long port, u8 index, xgifb_reg_set(port, index, temp); } -static inline void xgifb_reg_and(unsigned long port, u8 index, unsigned data_and) +static inline void xgifb_reg_and(unsigned long port, u8 index, + unsigned int data_and) { u8 temp; @@ -31,7 +32,8 @@ static inline void xgifb_reg_and(unsigned long port, u8 index, unsigned data_and xgifb_reg_set(port, index, temp); } -static inline void xgifb_reg_or(unsigned long port, u8 index, unsigned data_or) +static inline void xgifb_reg_or(unsigned long port, u8 index, + unsigned int data_or) { u8 temp; -- cgit v0.10.2 From 0d6b23a427a9c62f93a175187cedcd4f3a3a95d7 Mon Sep 17 00:00:00 2001 From: Bhumika Goyal Date: Sat, 26 Mar 2016 11:44:52 +0530 Subject: Staging: rtl8723au: Remove unused functions The functions rtw_get_oper_bw23a and rtw_get_oper_ch23aoffset are never used anywhere in the kernel. So, remove their definition and prototype. Grepped to find occurences. Signed-off-by: Bhumika Goyal Reviewed-by: Julian Calaby Acked-by: Jes Sorensen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8723au/core/rtw_wlan_util.c b/drivers/staging/rtl8723au/core/rtw_wlan_util.c index cc2b84b..694cf17 100644 --- a/drivers/staging/rtl8723au/core/rtw_wlan_util.c +++ b/drivers/staging/rtl8723au/core/rtw_wlan_util.c @@ -304,21 +304,11 @@ inline void rtw_set_oper_ch23a(struct rtw_adapter *adapter, u8 ch) adapter_to_dvobj(adapter)->oper_channel = ch; } -inline u8 rtw_get_oper_bw23a(struct rtw_adapter *adapter) -{ - return adapter_to_dvobj(adapter)->oper_bwmode; -} - inline void rtw_set_oper_bw23a(struct rtw_adapter *adapter, u8 bw) { adapter_to_dvobj(adapter)->oper_bwmode = bw; } -inline u8 rtw_get_oper_ch23aoffset(struct rtw_adapter *adapter) -{ - return adapter_to_dvobj(adapter)->oper_ch_offset; -} - inline void rtw_set_oper_ch23aoffset23a(struct rtw_adapter *adapter, u8 offset) { adapter_to_dvobj(adapter)->oper_ch_offset = offset; diff --git a/drivers/staging/rtl8723au/include/rtw_mlme_ext.h b/drivers/staging/rtl8723au/include/rtw_mlme_ext.h index ea2a6c9..0e7d3da 100644 --- a/drivers/staging/rtl8723au/include/rtw_mlme_ext.h +++ b/drivers/staging/rtl8723au/include/rtw_mlme_ext.h @@ -461,9 +461,7 @@ void Update23aTblForSoftAP(u8 *bssrateset, u32 bssratelen); u8 rtw_get_oper_ch23a(struct rtw_adapter *adapter); void rtw_set_oper_ch23a(struct rtw_adapter *adapter, u8 ch); -u8 rtw_get_oper_bw23a(struct rtw_adapter *adapter); void rtw_set_oper_bw23a(struct rtw_adapter *adapter, u8 bw); -u8 rtw_get_oper_ch23aoffset(struct rtw_adapter *adapter); void rtw_set_oper_ch23aoffset23a(struct rtw_adapter *adapter, u8 offset); void set_channel_bwmode23a(struct rtw_adapter *padapter, unsigned char channel, -- cgit v0.10.2 From 15ac352c5402513bd7bee5cfe6439118b5a5f337 Mon Sep 17 00:00:00 2001 From: Bhumika Goyal Date: Sat, 26 Mar 2016 11:54:55 +0530 Subject: Staging: rtl8723au: Remove function rtw_enqueue_{recvbuf23a/recvbuf23a_to_head} The functions rtw_enqueue_recvbuf23a and rtw_enqueue_recvbuf23a_to_head are never used anywhere in the kernel. So, remove their definition and prototype. Grepped to find occurences. Signed-off-by: Bhumika Goyal Reviewed-by: Julian Calaby Acked-by: Jes Sorensen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8723au/core/rtw_recv.c b/drivers/staging/rtl8723au/core/rtw_recv.c index 989ed07..150dabc 100644 --- a/drivers/staging/rtl8723au/core/rtw_recv.c +++ b/drivers/staging/rtl8723au/core/rtw_recv.c @@ -211,31 +211,6 @@ u32 rtw_free_uc_swdec_pending_queue23a(struct rtw_adapter *adapter) return cnt; } -int rtw_enqueue_recvbuf23a_to_head(struct recv_buf *precvbuf, struct rtw_queue *queue) -{ - spin_lock_bh(&queue->lock); - - list_del_init(&precvbuf->list); - list_add(&precvbuf->list, get_list_head(queue)); - - spin_unlock_bh(&queue->lock); - - return _SUCCESS; -} - -int rtw_enqueue_recvbuf23a(struct recv_buf *precvbuf, struct rtw_queue *queue) -{ - unsigned long irqL; - - spin_lock_irqsave(&queue->lock, irqL); - - list_del_init(&precvbuf->list); - - list_add_tail(&precvbuf->list, get_list_head(queue)); - spin_unlock_irqrestore(&queue->lock, irqL); - return _SUCCESS; -} - struct recv_buf *rtw_dequeue_recvbuf23a (struct rtw_queue *queue) { unsigned long irqL; diff --git a/drivers/staging/rtl8723au/include/rtw_recv.h b/drivers/staging/rtl8723au/include/rtw_recv.h index dc784be..85a5edb 100644 --- a/drivers/staging/rtl8723au/include/rtw_recv.h +++ b/drivers/staging/rtl8723au/include/rtw_recv.h @@ -279,8 +279,6 @@ int rtw_enqueue_recvframe23a(struct recv_frame *precvframe, struct rtw_queue *qu u32 rtw_free_uc_swdec_pending_queue23a(struct rtw_adapter *adapter); -int rtw_enqueue_recvbuf23a_to_head(struct recv_buf *precvbuf, struct rtw_queue *queue); -int rtw_enqueue_recvbuf23a(struct recv_buf *precvbuf, struct rtw_queue *queue); struct recv_buf *rtw_dequeue_recvbuf23a(struct rtw_queue *queue); void rtw_reordering_ctrl_timeout_handler23a(unsigned long pcontext); -- cgit v0.10.2 From db71dd988af5ffdc6280e93977591b3ebc4c7673 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Wed, 23 Mar 2016 10:55:21 +0000 Subject: staging: comedi: drivers: remove bogus ni_mio_c_common.c The zero-length file "ni_mio_c_common.c" was inadvertantly created by commit e563637b5fef ("staging: comedi: Use ARRAY_SIZE for sizes of arrays"). Remove it. Signed-off-by: Ian Abbott Reviewed-by: H Hartley Sweeten Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_c_common.c b/drivers/staging/comedi/drivers/ni_mio_c_common.c deleted file mode 100644 index e69de29..0000000 -- cgit v0.10.2 From 7a4000e7128d9432ba78bc398bbedc6066825b80 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Fri, 25 Mar 2016 22:54:48 +0200 Subject: Staging: wlan-ng: no need for memcpy() since its arguments are already equal This patch removes the memcpy() for two variables which were previously tested with memcmp(). The result of memcmp() was zero which means that the previously tested variables were already equal. Signed-off-by: Claudiu Beznea Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wlan-ng/p80211conv.c b/drivers/staging/wlan-ng/p80211conv.c index bdb50a5..6354036 100644 --- a/drivers/staging/wlan-ng/p80211conv.c +++ b/drivers/staging/wlan-ng/p80211conv.c @@ -243,7 +243,6 @@ static void orinoco_spy_gather(wlandevice_t *wlandev, char *mac, for (i = 0; i < wlandev->spy_number; i++) { if (!memcmp(wlandev->spy_address[i], mac, ETH_ALEN)) { - memcpy(wlandev->spy_address[i], mac, ETH_ALEN); wlandev->spy_stat[i].level = rxmeta->signal; wlandev->spy_stat[i].noise = rxmeta->noise; wlandev->spy_stat[i].qual = -- cgit v0.10.2 From 71fa2cf90ad46b925c27c372fac9b927e8014ebf Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Fri, 25 Mar 2016 23:28:54 +0200 Subject: Staging: wlan-ng: convert usb_prism_tbl[] array into a const array This patch convert usb_prism_tbl[] into a const array since it is not modified anywhere in prism2usb.c file. Signed-off-by: Claudiu Beznea Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wlan-ng/prism2usb.c b/drivers/staging/wlan-ng/prism2usb.c index 41358bb..b26d09f 100644 --- a/drivers/staging/wlan-ng/prism2usb.c +++ b/drivers/staging/wlan-ng/prism2usb.c @@ -8,7 +8,7 @@ { USB_DEVICE(vid, pid), \ .driver_info = (unsigned long)name } -static struct usb_device_id usb_prism_tbl[] = { +static const struct usb_device_id usb_prism_tbl[] = { PRISM_DEV(0x04bb, 0x0922, "IOData AirPort WN-B11/USBS"), PRISM_DEV(0x07aa, 0x0012, "Corega Wireless LAN USB Stick-11"), PRISM_DEV(0x09aa, 0x3642, "Prism2.x 11Mbps WLAN USB Adapter"), -- cgit v0.10.2 From 686855e033faf191b499315758ae2c40f230a3bc Mon Sep 17 00:00:00 2001 From: Ben Marsh Date: Fri, 25 Mar 2016 22:44:48 +0100 Subject: Staging: gs_fpgaboot: remove blank line in io.c Removes a blank line in order to silence a checkpatch.pl warning. Signed-off-by: Ben Marsh Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/gs_fpgaboot/io.c b/drivers/staging/gs_fpgaboot/io.c index 819db53..c939119 100644 --- a/drivers/staging/gs_fpgaboot/io.c +++ b/drivers/staging/gs_fpgaboot/io.c @@ -35,7 +35,6 @@ static inline void byte0_out(unsigned char data); static inline void byte1_out(unsigned char data); static inline void xl_cclk_b(int32_t i); - /* Assert and Deassert CCLK */ void xl_shift_cclk(int count) { -- cgit v0.10.2 From 3cb61bdf14af55e71095f4d11187a79116b30e3f Mon Sep 17 00:00:00 2001 From: Bhumika Goyal Date: Sat, 26 Mar 2016 12:42:43 +0530 Subject: Staging: rts5208: Remove unused functions The functions rtsx_disable_card_int, rtsx_undo_delink, rtsx_check_link_ready are not used anywhere in the kernel. So,remove their definition and prototype. Signed-off-by: Bhumika Goyal Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rts5208/rtsx_chip.c b/drivers/staging/rts5208/rtsx_chip.c index c0ce659..bcc4b66 100644 --- a/drivers/staging/rts5208/rtsx_chip.c +++ b/drivers/staging/rts5208/rtsx_chip.c @@ -43,14 +43,6 @@ static void rtsx_calibration(struct rtsx_chip *chip) rtsx_write_phy_register(chip, 0x00, 0x0288); } -void rtsx_disable_card_int(struct rtsx_chip *chip) -{ - u32 reg = rtsx_readl(chip, RTSX_BIER); - - reg &= ~(XD_INT_EN | SD_INT_EN | MS_INT_EN); - rtsx_writel(chip, RTSX_BIER, reg); -} - void rtsx_enable_card_int(struct rtsx_chip *chip) { u32 reg = rtsx_readl(chip, RTSX_BIER); @@ -1447,12 +1439,6 @@ delink_stage: rtsx_delink_stage(chip); } -void rtsx_undo_delink(struct rtsx_chip *chip) -{ - chip->auto_delink_allowed = 0; - rtsx_write_register(chip, CHANGE_LINK_STATE, 0x0A, 0x00); -} - /** * rtsx_stop_cmd - stop command transfer and DMA transfer * @chip: Realtek's card reader chip @@ -2000,27 +1986,6 @@ int rtsx_set_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit) return STATUS_SUCCESS; } -int rtsx_check_link_ready(struct rtsx_chip *chip) -{ - int retval; - u8 val; - - retval = rtsx_read_register(chip, IRQSTAT0, &val); - if (retval) { - rtsx_trace(chip); - return retval; - } - - dev_dbg(rtsx_dev(chip), "IRQSTAT0: 0x%x\n", val); - if (val & LINK_RDY_INT) { - dev_dbg(rtsx_dev(chip), "Delinked!\n"); - rtsx_write_register(chip, IRQSTAT0, LINK_RDY_INT, LINK_RDY_INT); - return STATUS_FAIL; - } - - return STATUS_SUCCESS; -} - static void rtsx_handle_pm_dstate(struct rtsx_chip *chip, u8 dstate) { u32 ultmp; diff --git a/drivers/staging/rts5208/rtsx_chip.h b/drivers/staging/rts5208/rtsx_chip.h index c295b1e..c08164f 100644 --- a/drivers/staging/rts5208/rtsx_chip.h +++ b/drivers/staging/rts5208/rtsx_chip.h @@ -950,7 +950,6 @@ do { \ int rtsx_force_power_on(struct rtsx_chip *chip, u8 ctl); int rtsx_force_power_down(struct rtsx_chip *chip, u8 ctl); -void rtsx_disable_card_int(struct rtsx_chip *chip); void rtsx_enable_card_int(struct rtsx_chip *chip); void rtsx_enable_bus_int(struct rtsx_chip *chip); void rtsx_disable_bus_int(struct rtsx_chip *chip); @@ -958,7 +957,6 @@ int rtsx_reset_chip(struct rtsx_chip *chip); int rtsx_init_chip(struct rtsx_chip *chip); void rtsx_release_chip(struct rtsx_chip *chip); void rtsx_polling_func(struct rtsx_chip *chip); -void rtsx_undo_delink(struct rtsx_chip *chip); void rtsx_stop_cmd(struct rtsx_chip *chip, int card); int rtsx_write_register(struct rtsx_chip *chip, u16 addr, u8 mask, u8 data); int rtsx_read_register(struct rtsx_chip *chip, u16 addr, u8 *data); @@ -975,7 +973,6 @@ int rtsx_read_efuse(struct rtsx_chip *chip, u8 addr, u8 *val); int rtsx_write_efuse(struct rtsx_chip *chip, u8 addr, u8 val); int rtsx_clr_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit); int rtsx_set_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit); -int rtsx_check_link_ready(struct rtsx_chip *chip); void rtsx_enter_ss(struct rtsx_chip *chip); void rtsx_exit_ss(struct rtsx_chip *chip); int rtsx_pre_handle_interrupt(struct rtsx_chip *chip); -- cgit v0.10.2 From 143b3bf6d3f7e14945af589414f1bd29efe36a72 Mon Sep 17 00:00:00 2001 From: Bhumika Goyal Date: Sat, 26 Mar 2016 12:52:28 +0530 Subject: Staging: rts5208: rtsx_card.c: Remove unused function The functions double_depth, check_card_fail, check_card_ejected are not used anywhere in the kernel. So, remove their prototype and definition. Grepped to find occurences. Signed-off-by: Bhumika Goyal Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rts5208/rtsx_card.c b/drivers/staging/rts5208/rtsx_card.c index 437436f..231833a 100644 --- a/drivers/staging/rts5208/rtsx_card.c +++ b/drivers/staging/rts5208/rtsx_card.c @@ -628,11 +628,6 @@ void rtsx_init_cards(struct rtsx_chip *chip) } } -static inline u8 double_depth(u8 depth) -{ - return (depth > 1) ? (depth - 1) : depth; -} - int switch_ssc_clock(struct rtsx_chip *chip, int clk) { int retval; @@ -1184,22 +1179,6 @@ int check_card_wp(struct rtsx_chip *chip, unsigned int lun) return 0; } -int check_card_fail(struct rtsx_chip *chip, unsigned int lun) -{ - if (chip->card_fail & chip->lun2card[lun]) - return 1; - - return 0; -} - -int check_card_ejected(struct rtsx_chip *chip, unsigned int lun) -{ - if (chip->card_ejected & chip->lun2card[lun]) - return 1; - - return 0; -} - u8 get_lun_card(struct rtsx_chip *chip, unsigned int lun) { if ((chip->card_ready & chip->lun2card[lun]) == XD_CARD) diff --git a/drivers/staging/rts5208/rtsx_card.h b/drivers/staging/rts5208/rtsx_card.h index 8f2cf9a4e..56df9a4 100644 --- a/drivers/staging/rts5208/rtsx_card.h +++ b/drivers/staging/rts5208/rtsx_card.h @@ -1024,8 +1024,6 @@ int detect_card_cd(struct rtsx_chip *chip, int card); int check_card_exist(struct rtsx_chip *chip, unsigned int lun); int check_card_ready(struct rtsx_chip *chip, unsigned int lun); int check_card_wp(struct rtsx_chip *chip, unsigned int lun); -int check_card_fail(struct rtsx_chip *chip, unsigned int lun); -int check_card_ejected(struct rtsx_chip *chip, unsigned int lun); void eject_card(struct rtsx_chip *chip, unsigned int lun); u8 get_lun_card(struct rtsx_chip *chip, unsigned int lun); -- cgit v0.10.2 From ae6b08672fd1802abbdd12dcda7553a7f1f009ad Mon Sep 17 00:00:00 2001 From: Aniket Sharma Date: Sun, 27 Mar 2016 10:52:19 -0700 Subject: Staging: comedi: Fix 'unsigned' warning style This patch fixes the checkpatch.pl warning: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' + unsigned runflags; WARNING: Prefer 'unsigned int' to bare use of 'unsigned' +struct comedi_device *comedi_dev_get_from_minor(unsigned minor); Signed-off-by: Aniket Sharma Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index 1158072..dcb6376 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -173,7 +173,7 @@ struct comedi_subdevice { void *lock; void *busy; - unsigned runflags; + unsigned int runflags; spinlock_t spin_lock; /* generic spin-lock for COMEDI and drivers */ unsigned int io_bits; @@ -566,7 +566,7 @@ struct comedi_device { void comedi_event(struct comedi_device *dev, struct comedi_subdevice *s); -struct comedi_device *comedi_dev_get_from_minor(unsigned minor); +struct comedi_device *comedi_dev_get_from_minor(unsigned int minor); int comedi_dev_put(struct comedi_device *dev); bool comedi_is_subdevice_running(struct comedi_subdevice *s); -- cgit v0.10.2 From b2073dcb80b61043f6ae6aeb2311907b0418392a Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Tue, 29 Mar 2016 10:49:04 +0100 Subject: staging: comedi: comedi_fops.c: fix lines over 80 characters Fix checkpatch.pl warnings about lines over 80 characters in "comedi_fops.c". Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 4bdea20..629080f 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -209,8 +209,8 @@ static void comedi_free_board_dev(struct comedi_device *dev) } } -static struct comedi_subdevice -*comedi_subdevice_from_minor(const struct comedi_device *dev, unsigned int minor) +static struct comedi_subdevice * +comedi_subdevice_from_minor(const struct comedi_device *dev, unsigned int minor) { struct comedi_subdevice *s; unsigned int i = minor - COMEDI_NUM_BOARD_MINORS; @@ -233,7 +233,8 @@ static struct comedi_device *comedi_dev_get_from_board_minor(unsigned int minor) return dev; } -static struct comedi_device *comedi_dev_get_from_subdevice_minor(unsigned int minor) +static struct comedi_device * +comedi_dev_get_from_subdevice_minor(unsigned int minor) { struct comedi_device *dev; struct comedi_subdevice *s; @@ -342,7 +343,8 @@ static struct comedi_subdevice *comedi_file_write_subdevice(struct file *file) } static int resize_async_buffer(struct comedi_device *dev, - struct comedi_subdevice *s, unsigned int new_size) + struct comedi_subdevice *s, + unsigned int new_size) { struct comedi_async *async = s->async; int retval; @@ -628,7 +630,8 @@ static void __comedi_set_subdevice_runflags(struct comedi_subdevice *s, } static void comedi_update_subdevice_runflags(struct comedi_subdevice *s, - unsigned int mask, unsigned int bits) + unsigned int mask, + unsigned int bits) { unsigned long flags; @@ -2485,7 +2488,8 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes, n = min_t(size_t, m, nbytes); if (n == 0) { - unsigned int runflags = comedi_get_subdevice_runflags(s); + unsigned int runflags = + comedi_get_subdevice_runflags(s); if (!comedi_is_runflags_running(runflags)) { if (comedi_is_runflags_in_error(runflags)) -- cgit v0.10.2 From eeb6f1ba921d413157282a573290c0eb57d549d7 Mon Sep 17 00:00:00 2001 From: Dominique van den Broeck Date: Tue, 29 Mar 2016 19:14:20 +0200 Subject: staging: fwserial: (coding style) Turning every "unsigned" into "unsigned int" Coding-style-only modifications to remove every warning saying: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Compiled against revision "next-20160327". (checkpatch.pl was updated to treat "UNSPECIFIED_INT" warnings as of commit a1ce18e4f941d20 ) Signed-off-by: Dominique van den Broeck Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fwserial/dma_fifo.c b/drivers/staging/fwserial/dma_fifo.c index 4cd3ed3..8b23a55 100644 --- a/drivers/staging/fwserial/dma_fifo.c +++ b/drivers/staging/fwserial/dma_fifo.c @@ -35,7 +35,7 @@ /* * private helper fn to determine if check is in open interval (lo,hi) */ -static bool addr_check(unsigned check, unsigned lo, unsigned hi) +static bool addr_check(unsigned int check, unsigned int lo, unsigned int hi) { return check - (lo + 1) < (hi - 1) - lo; } @@ -64,7 +64,7 @@ void dma_fifo_init(struct dma_fifo *fifo) * The 'apparent' size will be rounded up to next greater aligned size. * Returns 0 if no error, otherwise an error code */ -int dma_fifo_alloc(struct dma_fifo *fifo, int size, unsigned align, +int dma_fifo_alloc(struct dma_fifo *fifo, int size, unsigned int align, int tx_limit, int open_limit, gfp_t gfp_mask) { int capacity; @@ -190,7 +190,7 @@ int dma_fifo_in(struct dma_fifo *fifo, const void *src, int n) */ int dma_fifo_out_pend(struct dma_fifo *fifo, struct dma_pending *pended) { - unsigned len, n, ofs, l, limit; + unsigned int len, n, ofs, l, limit; if (!fifo->data) return -ENOENT; @@ -210,7 +210,7 @@ int dma_fifo_out_pend(struct dma_fifo *fifo, struct dma_pending *pended) n = len; ofs = fifo->out % fifo->capacity; l = fifo->capacity - ofs; - limit = min_t(unsigned, l, fifo->tx_limit); + limit = min_t(unsigned int, l, fifo->tx_limit); if (n > limit) { n = limit; fifo->out += limit; diff --git a/drivers/staging/fwserial/dma_fifo.h b/drivers/staging/fwserial/dma_fifo.h index 4109882..37a91c6 100644 --- a/drivers/staging/fwserial/dma_fifo.h +++ b/drivers/staging/fwserial/dma_fifo.h @@ -45,9 +45,9 @@ #define DMA_FIFO_GUARD 3 /* # of cache lines to reserve for the guard area */ struct dma_fifo { - unsigned in; - unsigned out; /* updated when dma is pended */ - unsigned done; /* updated upon dma completion */ + unsigned int in; + unsigned int out; /* updated when dma is pended */ + unsigned int done; /* updated upon dma completion */ struct { unsigned corrupt:1; }; @@ -55,7 +55,7 @@ struct dma_fifo { int guard; /* ofs of guard area */ int capacity; /* size + reserved */ int avail; /* # of unused bytes in fifo */ - unsigned align; /* must be power of 2 */ + unsigned int align; /* must be power of 2 */ int tx_limit; /* max # of bytes per dma transaction */ int open_limit; /* max # of outstanding allowed */ int open; /* # of outstanding dma transactions */ @@ -66,9 +66,9 @@ struct dma_fifo { struct dma_pending { struct list_head link; void *data; - unsigned len; - unsigned next; - unsigned out; + unsigned int len; + unsigned int next; + unsigned int out; }; static inline void dp_mark_completed(struct dma_pending *dp) @@ -82,7 +82,7 @@ static inline bool dp_is_completed(struct dma_pending *dp) } void dma_fifo_init(struct dma_fifo *fifo); -int dma_fifo_alloc(struct dma_fifo *fifo, int size, unsigned align, +int dma_fifo_alloc(struct dma_fifo *fifo, int size, unsigned int align, int tx_limit, int open_limit, gfp_t gfp_mask); void dma_fifo_free(struct dma_fifo *fifo); void dma_fifo_reset(struct dma_fifo *fifo); diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c index 9b23b5c..66e54e7 100644 --- a/drivers/staging/fwserial/fwserial.c +++ b/drivers/staging/fwserial/fwserial.c @@ -132,7 +132,7 @@ static struct fwtty_peer *__fwserial_peer_by_node_id(struct fw_card *card, #ifdef FWTTY_PROFILING -static void fwtty_profile_fifo(struct fwtty_port *port, unsigned *stat) +static void fwtty_profile_fifo(struct fwtty_port *port, unsigned int *stat) { spin_lock_bh(&port->lock); fwtty_profile_data(stat, dma_fifo_avail(&port->tx_fifo)); @@ -143,7 +143,7 @@ static void fwtty_dump_profile(struct seq_file *m, struct stats *stats) { /* for each stat, print sum of 0 to 2^k, then individually */ int k = 4; - unsigned sum; + unsigned int sum; int j; char t[10]; @@ -303,9 +303,10 @@ static void fwtty_restart_tx(struct fwtty_port *port) * Note: in loopback, the port->lock is being held. Only use functions that * don't attempt to reclaim the port->lock. */ -static void fwtty_update_port_status(struct fwtty_port *port, unsigned status) +static void fwtty_update_port_status(struct fwtty_port *port, + unsigned int status) { - unsigned delta; + unsigned int delta; struct tty_struct *tty; /* simulated LSR/MSR status from remote */ @@ -396,9 +397,9 @@ static void fwtty_update_port_status(struct fwtty_port *port, unsigned status) * * Note: caller must be holding port lock */ -static unsigned __fwtty_port_line_status(struct fwtty_port *port) +static unsigned int __fwtty_port_line_status(struct fwtty_port *port) { - unsigned status = 0; + unsigned int status = 0; /* TODO: add module param to tie RNG to DTR as well */ @@ -424,7 +425,7 @@ static int __fwtty_write_port_status(struct fwtty_port *port) { struct fwtty_peer *peer; int err = -ENOENT; - unsigned status = __fwtty_port_line_status(port); + unsigned int status = __fwtty_port_line_status(port); rcu_read_lock(); peer = rcu_dereference(port->peer); @@ -454,7 +455,7 @@ static int fwtty_write_port_status(struct fwtty_port *port) static void fwtty_throttle_port(struct fwtty_port *port) { struct tty_struct *tty; - unsigned old; + unsigned int old; tty = tty_port_tty_get(&port->port); if (!tty) @@ -540,7 +541,7 @@ static void fwtty_emit_breaks(struct work_struct *work) static int fwtty_rx(struct fwtty_port *port, unsigned char *data, size_t len) { int c, n = len; - unsigned lsr; + unsigned int lsr; int err = 0; fwtty_dbg(port, "%d\n", n); @@ -635,7 +636,7 @@ static void fwtty_port_handler(struct fw_card *card, if (addr != port->rx_handler.offset || len != 4) { rcode = RCODE_ADDRESS_ERROR; } else { - fwtty_update_port_status(port, *(unsigned *)data); + fwtty_update_port_status(port, *(unsigned int *)data); rcode = RCODE_COMPLETE; } break; @@ -828,7 +829,7 @@ static void fwtty_write_xchar(struct fwtty_port *port, char ch) rcu_read_unlock(); } -static struct fwtty_port *fwtty_port_get(unsigned index) +static struct fwtty_port *fwtty_port_get(unsigned int index) { struct fwtty_port *port; @@ -934,9 +935,9 @@ static int fwtty_port_carrier_raised(struct tty_port *tty_port) return rc; } -static unsigned set_termios(struct fwtty_port *port, struct tty_struct *tty) +static unsigned int set_termios(struct fwtty_port *port, struct tty_struct *tty) { - unsigned baud, frame; + unsigned int baud, frame; baud = tty_termios_baud_rate(&tty->termios); tty_termios_encode_baud_rate(&tty->termios, baud, baud); @@ -988,7 +989,7 @@ static int fwtty_port_activate(struct tty_port *tty_port, struct tty_struct *tty) { struct fwtty_port *port = to_port(tty_port, port); - unsigned baud; + unsigned int baud; int err; set_bit(TTY_IO_ERROR, &tty->flags); @@ -1264,7 +1265,7 @@ static int set_serial_info(struct fwtty_port *port, return 0; } -static int fwtty_ioctl(struct tty_struct *tty, unsigned cmd, +static int fwtty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct fwtty_port *port = tty->driver_data; @@ -1297,7 +1298,7 @@ static int fwtty_ioctl(struct tty_struct *tty, unsigned cmd, static void fwtty_set_termios(struct tty_struct *tty, struct ktermios *old) { struct fwtty_port *port = tty->driver_data; - unsigned baud; + unsigned int baud; spin_lock_bh(&port->lock); baud = set_termios(port, tty); @@ -1369,7 +1370,7 @@ static int fwtty_break_ctl(struct tty_struct *tty, int state) static int fwtty_tiocmget(struct tty_struct *tty) { struct fwtty_port *port = tty->driver_data; - unsigned tiocm; + unsigned int tiocm; spin_lock_bh(&port->lock); tiocm = (port->mctrl & MCTRL_MASK) | (port->mstatus & ~MCTRL_MASK); @@ -1380,7 +1381,8 @@ static int fwtty_tiocmget(struct tty_struct *tty) return tiocm; } -static int fwtty_tiocmset(struct tty_struct *tty, unsigned set, unsigned clear) +static int fwtty_tiocmset(struct tty_struct *tty, + unsigned int set, unsigned int clear) { struct fwtty_port *port = tty->driver_data; diff --git a/drivers/staging/fwserial/fwserial.h b/drivers/staging/fwserial/fwserial.h index 6fa9365..30b2481 100644 --- a/drivers/staging/fwserial/fwserial.h +++ b/drivers/staging/fwserial/fwserial.h @@ -22,7 +22,7 @@ #ifdef FWTTY_PROFILING #define DISTRIBUTION_MAX_SIZE 8192 #define DISTRIBUTION_MAX_INDEX (ilog2(DISTRIBUTION_MAX_SIZE) + 1) -static inline void fwtty_profile_data(unsigned stat[], unsigned val) +static inline void fwtty_profile_data(unsigned int stat[], unsigned int val) { int n = (val) ? min(ilog2(val) + 1, DISTRIBUTION_MAX_INDEX) : 0; ++stat[n]; @@ -78,7 +78,7 @@ struct fwtty_peer { u64 guid; int generation; int node_id; - unsigned speed; + unsigned int speed; int max_payload; u64 mgmt_addr; @@ -160,17 +160,17 @@ struct fwserial_mgmt_pkt { #define VIRT_CABLE_PLUG_TIMEOUT (60 * HZ) struct stats { - unsigned xchars; - unsigned dropped; - unsigned tx_stall; - unsigned fifo_errs; - unsigned sent; - unsigned lost; - unsigned throttled; - unsigned reads[DISTRIBUTION_MAX_INDEX + 1]; - unsigned writes[DISTRIBUTION_MAX_INDEX + 1]; - unsigned txns[DISTRIBUTION_MAX_INDEX + 1]; - unsigned unthrottle[DISTRIBUTION_MAX_INDEX + 1]; + unsigned int xchars; + unsigned int dropped; + unsigned int tx_stall; + unsigned int fifo_errs; + unsigned int sent; + unsigned int lost; + unsigned int throttled; + unsigned int reads[DISTRIBUTION_MAX_INDEX + 1]; + unsigned int writes[DISTRIBUTION_MAX_INDEX + 1]; + unsigned int txns[DISTRIBUTION_MAX_INDEX + 1]; + unsigned int unthrottle[DISTRIBUTION_MAX_INDEX + 1]; }; struct fwconsole_ops { @@ -237,7 +237,7 @@ struct fwconsole_ops { struct fwtty_port { struct tty_port port; struct device *device; - unsigned index; + unsigned int index; struct fw_serial *serial; struct fw_address_handler rx_handler; @@ -246,21 +246,21 @@ struct fwtty_port { wait_queue_head_t wait_tx; struct delayed_work emit_breaks; - unsigned cps; + unsigned int cps; unsigned long break_last; struct work_struct hangup; - unsigned mstatus; + unsigned int mstatus; spinlock_t lock; - unsigned mctrl; + unsigned int mctrl; struct delayed_work drain; struct dma_fifo tx_fifo; int max_payload; - unsigned status_mask; - unsigned ignore_mask; - unsigned break_ctl:1, + unsigned int status_mask; + unsigned int ignore_mask; + unsigned int break_ctl:1, write_only:1, overrun:1, loopback:1; @@ -349,7 +349,7 @@ extern struct tty_driver *fwtty_driver; * being used for isochronous traffic) * 2) isochronous arbitration always wins. */ -static inline int link_speed_to_max_payload(unsigned speed) +static inline int link_speed_to_max_payload(unsigned int speed) { /* Max async payload is 4096 - see IEEE 1394-2008 tables 6-4, 16-18 */ return min(512 << speed, 4096); -- cgit v0.10.2 From 7d47383dcb3f5867de56ac04ce46db06ac47ad0b Mon Sep 17 00:00:00 2001 From: Dominique van den Broeck Date: Tue, 29 Mar 2016 19:14:21 +0200 Subject: staging: fwserial: (coding style) removing "!= NULL" to comply with checkpatch.pl Removing two "!= NULL" from fwserial.c as suggested by checkpatch.pl. Note that the associated expression "port->port.console" is a 1-bit-field that is already assumed as an implicit boolean (that is: without comparison) Signed-off-by: Dominique van den Broeck Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c index 66e54e7..4dd5304 100644 --- a/drivers/staging/fwserial/fwserial.c +++ b/drivers/staging/fwserial/fwserial.c @@ -1701,7 +1701,7 @@ static void fwserial_virt_plug_complete(struct fwtty_peer *peer, dma_fifo_change_tx_limit(&port->tx_fifo, port->max_payload); spin_unlock_bh(&peer->port->lock); - if (port->port.console && port->fwcon_ops->notify != NULL) + if (port->port.console && port->fwcon_ops->notify) (*port->fwcon_ops->notify)(FWCON_NOTIFY_ATTACH, port->con_data); fwtty_info(&peer->unit, "peer (guid:%016llx) connected on %s\n", @@ -1808,7 +1808,7 @@ static void fwserial_release_port(struct fwtty_port *port, bool reset) RCU_INIT_POINTER(port->peer, NULL); spin_unlock_bh(&port->lock); - if (port->port.console && port->fwcon_ops->notify != NULL) + if (port->port.console && port->fwcon_ops->notify) (*port->fwcon_ops->notify)(FWCON_NOTIFY_DETACH, port->con_data); } -- cgit v0.10.2 From f0e00da2db61c9052fbc07edf2b2bf615b7a4bbe Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Tue, 29 Mar 2016 17:53:23 +0100 Subject: staging: sm750fb: initialize max_d to maximum D value of 6 max_d is not initialized and should be set to the largest D value of 6. Signed-off-by: Colin Ian King Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/sm750fb/ddk750_chip.c b/drivers/staging/sm750fb/ddk750_chip.c index 95f7cae..f80ee77 100644 --- a/drivers/staging/sm750fb/ddk750_chip.c +++ b/drivers/staging/sm750fb/ddk750_chip.c @@ -306,7 +306,7 @@ unsigned int calcPllValue(unsigned int request_orig, pll_value_t *pll) unsigned int input, request; unsigned int tmpClock, ret; const int max_OD = 3; - int max_d; + int max_d = 6; if (getChipType() == SM750LE) { /* SM750LE don't have prgrammable PLL and M/N values to work on. -- cgit v0.10.2 From 9fca845577c07e7bbd659625e03dfda8ebda4b91 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Sat, 26 Mar 2016 10:54:13 +0200 Subject: Staging: wlan-ng: removed "next" member of wlandevice_t since it is not used anywhere in code. This patch removes "next" member of wlandevice_t since it is not used anywhere in the wlan-ng code. Signed-off-by: Claudiu Beznea Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wlan-ng/p80211netdev.h b/drivers/staging/wlan-ng/p80211netdev.h index 810ee68..820a0e2 100644 --- a/drivers/staging/wlan-ng/p80211netdev.h +++ b/drivers/staging/wlan-ng/p80211netdev.h @@ -158,7 +158,6 @@ extern int wlan_wext_write; /* WLAN device type */ typedef struct wlandevice { - struct wlandevice *next; /* link for list of devices */ void *priv; /* private data for MSD */ /* Subsystem State */ -- cgit v0.10.2 From a0fcb63586a57560de28c333127bb0e36c01c70c Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 30 Mar 2016 10:41:42 -0400 Subject: staging: unisys: removed unused switch/port info from visorbus.h The fields 'switch_no' and 'internal_port_no' were originally added to the visor_device struct in preparation of removing the 'device_info' struct in the now removed 'uislib' library. After the refactoring was complete, these attributes are not referenced anywhere, and there are no plans to use them. Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index 9c47a13..25ffdc0 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -155,8 +155,6 @@ struct visor_device { u8 *description; struct controlvm_message_header *pending_msg_hdr; void *vbus_hdr_info; - u32 switch_no; - u32 internal_port_no; uuid_le partition_uuid; }; -- cgit v0.10.2 From 378d638a89b67bf2bb2de34786f3a27b41203357 Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 30 Mar 2016 10:41:43 -0400 Subject: staging: unisys: include: removed unused 'visor_device.description' The 'description' variable in visor_device was added in preparation for removing the 'device_info' struct when the uislib files were removed. That attribute is never accessed nor set, and the 'name' attribute provides enough information to correctly identify the driver, it is not needed. Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index 25ffdc0..f7e753f 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -152,7 +152,6 @@ struct visor_device { uuid_le type; uuid_le inst; u8 *name; - u8 *description; struct controlvm_message_header *pending_msg_hdr; void *vbus_hdr_info; uuid_le partition_uuid; -- cgit v0.10.2 From 240f7ec1f49aef8fe28d13ad52ced6c28ccc8f02 Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 30 Mar 2016 10:41:44 -0400 Subject: staging: unisys: removed unused visor_device.type field The visor_device.type field was included when preparing to remove the device_info struct. However, it's not used at all, and was already redundant by the existence of the 'visor_device.channel_type_guid' field. Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index f7e753f..729ca7e 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -149,7 +149,6 @@ struct visor_device { u32 chipset_bus_no; u32 chipset_dev_no; struct visorchipset_state state; - uuid_le type; uuid_le inst; u8 *name; struct controlvm_message_header *pending_msg_hdr; -- cgit v0.10.2 From 03d0d045c8884df5e0576d3eb7dbf53fa95fe7ce Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 30 Mar 2016 10:41:45 -0400 Subject: staging: unisys: removed 'visor_device.devnodes' field The 'visor_device.devnodes' field was used for displaying driver version information through the devmajorminor sysfs attribute, which has recently been removed, rendering the field unnecessary. Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index 729ca7e..cbc6d8f 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -136,12 +136,6 @@ struct visor_device { struct periodic_work *periodic_work; bool being_removed; bool responded_to_device_create; - struct { - int major, minor; - void *attr; /* private use by devmajorminor_attr.c you can - * change this constant to whatever you want - */ - } devnodes[5]; /* the code will detect and behave appropriately) */ struct semaphore visordriver_callback_lock; bool pausing; -- cgit v0.10.2 From 527486ee8fbb28fabd8fa51ddd4339a37ee15c5c Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 30 Mar 2016 10:41:46 -0400 Subject: staging: unisys: removed unused channel_bytes attribute The channel_bytes attribute in the visor_device struct was meant to keep track of the number of bytes in the associated channel of the device. Not only is the variable never set nor used, but the information can already be accessed by referencing visor_device->visorchannel->nbytes. Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index cbc6d8f..3788d16 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -124,7 +124,6 @@ struct visor_device { */ struct visorchannel *visorchannel; uuid_le channel_type_guid; - u64 channel_bytes; /** These fields are for private use by the bus driver only. * A notable exception is that the visor driver can use -- cgit v0.10.2 From 64938182e7836650feeb9b2b9dadd510ed4b0dad Mon Sep 17 00:00:00 2001 From: David Kershner Date: Wed, 30 Mar 2016 20:38:49 -0400 Subject: staging: unisys: remove wmb() in visordriver_remove_device Don't need to have a wmb() in visordriver_remove_device. Also removed an unnecessary check for drv being null. Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 1fcb177..547be8b 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -613,20 +613,12 @@ visordriver_remove_device(struct device *xdev) drv = to_visor_driver(xdev->driver); down(&dev->visordriver_callback_lock); dev->being_removed = true; - /* - * ensure that the dev->being_removed flag is set before we start the - * actual removal - */ - wmb(); - if (drv) { - if (drv->remove) - drv->remove(dev); - } + if (drv->remove) + drv->remove(dev); up(&dev->visordriver_callback_lock); dev_stop_periodic_work(dev); put_device(&dev->device); - return 0; } -- cgit v0.10.2 From 9f6b68774f29692f3e5b87e8eae29da61c3b1171 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 24 Mar 2016 15:58:17 -0500 Subject: android: remove timed output/gpio driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit timed_output was only used by the Android vibrator HAL which has now learned how to use LED triggers instead[1]. Any users of it in AOSP are on ancient kernels. Adding support for LED triggers is purely DT changes and proper kernel config. [1] https://android.googlesource.com/platform%2Fhardware%2Flibhardware/+/61701df363310a5cbd95e3e1638baa9526e42c9b Cc: John Stultz Cc: "Arve Hjønnevåg" Cc: Riley Andrews Signed-off-by: Rob Herring Acked-by: John Stultz Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig index bd90d20..4244821 100644 --- a/drivers/staging/android/Kconfig +++ b/drivers/staging/android/Kconfig @@ -14,20 +14,6 @@ config ASHMEM It is, in theory, a good memory allocator for low-memory devices, because it can discard shared memory units when under memory pressure. -config ANDROID_TIMED_OUTPUT - bool "Timed output class driver" - default y - -config ANDROID_TIMED_GPIO - tristate "Android timed gpio driver" - depends on GPIOLIB || COMPILE_TEST - depends on ANDROID_TIMED_OUTPUT - default n - ---help--- - Unlike generic gpio is to allow programs to access and manipulate gpio - registers from user space, timed output/gpio is a system to allow changing - a gpio pin and restore it automatically after a specified timeout. - config ANDROID_LOW_MEMORY_KILLER bool "Android Low Memory Killer" ---help--- diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile index c7b6c99..980d6dc 100644 --- a/drivers/staging/android/Makefile +++ b/drivers/staging/android/Makefile @@ -3,8 +3,6 @@ ccflags-y += -I$(src) # needed for trace events obj-y += ion/ obj-$(CONFIG_ASHMEM) += ashmem.o -obj-$(CONFIG_ANDROID_TIMED_OUTPUT) += timed_output.o -obj-$(CONFIG_ANDROID_TIMED_GPIO) += timed_gpio.o obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER) += lowmemorykiller.o obj-$(CONFIG_SYNC) += sync.o sync_debug.o obj-$(CONFIG_SW_SYNC) += sw_sync.o diff --git a/drivers/staging/android/timed_gpio.c b/drivers/staging/android/timed_gpio.c deleted file mode 100644 index 914fd10..0000000 --- a/drivers/staging/android/timed_gpio.c +++ /dev/null @@ -1,166 +0,0 @@ -/* drivers/misc/timed_gpio.c - * - * Copyright (C) 2008 Google, Inc. - * Author: Mike Lockwood - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include -#include -#include -#include -#include -#include -#include - -#include "timed_output.h" -#include "timed_gpio.h" - -struct timed_gpio_data { - struct timed_output_dev dev; - struct hrtimer timer; - spinlock_t lock; - unsigned gpio; - int max_timeout; - u8 active_low; -}; - -static enum hrtimer_restart gpio_timer_func(struct hrtimer *timer) -{ - struct timed_gpio_data *data = - container_of(timer, struct timed_gpio_data, timer); - - gpio_direction_output(data->gpio, data->active_low ? 1 : 0); - return HRTIMER_NORESTART; -} - -static int gpio_get_time(struct timed_output_dev *dev) -{ - struct timed_gpio_data *data; - ktime_t t; - - data = container_of(dev, struct timed_gpio_data, dev); - - if (!hrtimer_active(&data->timer)) - return 0; - - t = hrtimer_get_remaining(&data->timer); - - return ktime_to_ms(t); -} - -static void gpio_enable(struct timed_output_dev *dev, int value) -{ - struct timed_gpio_data *data = - container_of(dev, struct timed_gpio_data, dev); - unsigned long flags; - - spin_lock_irqsave(&data->lock, flags); - - /* cancel previous timer and set GPIO according to value */ - hrtimer_cancel(&data->timer); - gpio_direction_output(data->gpio, data->active_low ? !value : !!value); - - if (value > 0) { - if (value > data->max_timeout) - value = data->max_timeout; - - hrtimer_start(&data->timer, - ktime_set(value / 1000, (value % 1000) * 1000000), - HRTIMER_MODE_REL); - } - - spin_unlock_irqrestore(&data->lock, flags); -} - -static int timed_gpio_probe(struct platform_device *pdev) -{ - struct timed_gpio_platform_data *pdata = pdev->dev.platform_data; - struct timed_gpio *cur_gpio; - struct timed_gpio_data *gpio_data, *gpio_dat; - int i, ret; - - if (!pdata) - return -EBUSY; - - gpio_data = devm_kcalloc(&pdev->dev, pdata->num_gpios, - sizeof(*gpio_data), GFP_KERNEL); - if (!gpio_data) - return -ENOMEM; - - for (i = 0; i < pdata->num_gpios; i++) { - cur_gpio = &pdata->gpios[i]; - gpio_dat = &gpio_data[i]; - - hrtimer_init(&gpio_dat->timer, CLOCK_MONOTONIC, - HRTIMER_MODE_REL); - gpio_dat->timer.function = gpio_timer_func; - spin_lock_init(&gpio_dat->lock); - - gpio_dat->dev.name = cur_gpio->name; - gpio_dat->dev.get_time = gpio_get_time; - gpio_dat->dev.enable = gpio_enable; - ret = gpio_request(cur_gpio->gpio, cur_gpio->name); - if (ret < 0) - goto err_out; - ret = timed_output_dev_register(&gpio_dat->dev); - if (ret < 0) { - gpio_free(cur_gpio->gpio); - goto err_out; - } - - gpio_dat->gpio = cur_gpio->gpio; - gpio_dat->max_timeout = cur_gpio->max_timeout; - gpio_dat->active_low = cur_gpio->active_low; - gpio_direction_output(gpio_dat->gpio, gpio_dat->active_low); - } - - platform_set_drvdata(pdev, gpio_data); - - return 0; - -err_out: - while (--i >= 0) { - timed_output_dev_unregister(&gpio_data[i].dev); - gpio_free(gpio_data[i].gpio); - } - - return ret; -} - -static int timed_gpio_remove(struct platform_device *pdev) -{ - struct timed_gpio_platform_data *pdata = pdev->dev.platform_data; - struct timed_gpio_data *gpio_data = platform_get_drvdata(pdev); - int i; - - for (i = 0; i < pdata->num_gpios; i++) { - timed_output_dev_unregister(&gpio_data[i].dev); - gpio_free(gpio_data[i].gpio); - } - - return 0; -} - -static struct platform_driver timed_gpio_driver = { - .probe = timed_gpio_probe, - .remove = timed_gpio_remove, - .driver = { - .name = TIMED_GPIO_NAME, - }, -}; - -module_platform_driver(timed_gpio_driver); - -MODULE_AUTHOR("Mike Lockwood "); -MODULE_DESCRIPTION("timed gpio driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/staging/android/timed_gpio.h b/drivers/staging/android/timed_gpio.h deleted file mode 100644 index d29e169..0000000 --- a/drivers/staging/android/timed_gpio.h +++ /dev/null @@ -1,33 +0,0 @@ -/* include/linux/timed_gpio.h - * - * Copyright (C) 2008 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * -*/ - -#ifndef _LINUX_TIMED_GPIO_H -#define _LINUX_TIMED_GPIO_H - -#define TIMED_GPIO_NAME "timed-gpio" - -struct timed_gpio { - const char *name; - unsigned gpio; - int max_timeout; - u8 active_low; -}; - -struct timed_gpio_platform_data { - int num_gpios; - struct timed_gpio *gpios; -}; - -#endif diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c deleted file mode 100644 index aff9cdb..0000000 --- a/drivers/staging/android/timed_output.c +++ /dev/null @@ -1,110 +0,0 @@ -/* drivers/misc/timed_output.c - * - * Copyright (C) 2009 Google, Inc. - * Author: Mike Lockwood - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#define pr_fmt(fmt) "timed_output: " fmt - -#include -#include -#include -#include -#include -#include - -#include "timed_output.h" - -static struct class *timed_output_class; -static atomic_t device_count; - -static ssize_t enable_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct timed_output_dev *tdev = dev_get_drvdata(dev); - int remaining = tdev->get_time(tdev); - - return sprintf(buf, "%d\n", remaining); -} - -static ssize_t enable_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t size) -{ - struct timed_output_dev *tdev = dev_get_drvdata(dev); - int value; - int rc; - - rc = kstrtoint(buf, 0, &value); - if (rc != 0) - return -EINVAL; - - tdev->enable(tdev, value); - - return size; -} -static DEVICE_ATTR_RW(enable); - -static struct attribute *timed_output_attrs[] = { - &dev_attr_enable.attr, - NULL, -}; -ATTRIBUTE_GROUPS(timed_output); - -static int create_timed_output_class(void) -{ - if (!timed_output_class) { - timed_output_class = class_create(THIS_MODULE, "timed_output"); - if (IS_ERR(timed_output_class)) - return PTR_ERR(timed_output_class); - atomic_set(&device_count, 0); - timed_output_class->dev_groups = timed_output_groups; - } - - return 0; -} - -int timed_output_dev_register(struct timed_output_dev *tdev) -{ - int ret; - - if (!tdev || !tdev->name || !tdev->enable || !tdev->get_time) - return -EINVAL; - - ret = create_timed_output_class(); - if (ret < 0) - return ret; - - tdev->index = atomic_inc_return(&device_count); - tdev->dev = device_create(timed_output_class, NULL, - MKDEV(0, tdev->index), NULL, "%s", tdev->name); - if (IS_ERR(tdev->dev)) - return PTR_ERR(tdev->dev); - - dev_set_drvdata(tdev->dev, tdev); - tdev->state = 0; - return 0; -} -EXPORT_SYMBOL_GPL(timed_output_dev_register); - -void timed_output_dev_unregister(struct timed_output_dev *tdev) -{ - tdev->enable(tdev, 0); - device_destroy(timed_output_class, MKDEV(0, tdev->index)); -} -EXPORT_SYMBOL_GPL(timed_output_dev_unregister); - -static int __init timed_output_init(void) -{ - return create_timed_output_class(); -} -device_initcall(timed_output_init); diff --git a/drivers/staging/android/timed_output.h b/drivers/staging/android/timed_output.h deleted file mode 100644 index 13d2ca5..0000000 --- a/drivers/staging/android/timed_output.h +++ /dev/null @@ -1,37 +0,0 @@ -/* include/linux/timed_output.h - * - * Copyright (C) 2008 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * -*/ - -#ifndef _LINUX_TIMED_OUTPUT_H -#define _LINUX_TIMED_OUTPUT_H - -struct timed_output_dev { - const char *name; - - /* enable the output and set the timer */ - void (*enable)(struct timed_output_dev *sdev, int timeout); - - /* returns the current number of milliseconds remaining on the timer */ - int (*get_time)(struct timed_output_dev *sdev); - - /* private data */ - struct device *dev; - int index; - int state; -}; - -int timed_output_dev_register(struct timed_output_dev *dev); -void timed_output_dev_unregister(struct timed_output_dev *dev); - -#endif -- cgit v0.10.2 From 411059f701f0e8d23b5b5a94f9e43df7e32251f8 Mon Sep 17 00:00:00 2001 From: Ben Marsh Date: Mon, 28 Mar 2016 19:26:19 +0200 Subject: Staging: android: change memory allocation style in ion.c Chnages memory allocation style in order to silence a checkpatch.pl warning. Signed-off-by: Ben Marsh Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index 8536567..d4c6207 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -184,7 +184,7 @@ static struct ion_buffer *ion_buffer_create(struct ion_heap *heap, struct scatterlist *sg; int i, ret; - buffer = kzalloc(sizeof(struct ion_buffer), GFP_KERNEL); + buffer = kzalloc(sizeof(*buffer), GFP_KERNEL); if (!buffer) return ERR_PTR(-ENOMEM); @@ -341,7 +341,7 @@ static struct ion_handle *ion_handle_create(struct ion_client *client, { struct ion_handle *handle; - handle = kzalloc(sizeof(struct ion_handle), GFP_KERNEL); + handle = kzalloc(sizeof(*handle), GFP_KERNEL); if (!handle) return ERR_PTR(-ENOMEM); kref_init(&handle->ref); @@ -827,7 +827,7 @@ struct ion_client *ion_client_create(struct ion_device *dev, } task_unlock(current->group_leader); - client = kzalloc(sizeof(struct ion_client), GFP_KERNEL); + client = kzalloc(sizeof(*client), GFP_KERNEL); if (!client) goto err_put_task_struct; @@ -1035,7 +1035,7 @@ static void ion_vm_open(struct vm_area_struct *vma) struct ion_buffer *buffer = vma->vm_private_data; struct ion_vma_list *vma_list; - vma_list = kmalloc(sizeof(struct ion_vma_list), GFP_KERNEL); + vma_list = kmalloc(sizeof(*vma_list), GFP_KERNEL); if (!vma_list) return; vma_list->vma = vma; @@ -1650,7 +1650,7 @@ struct ion_device *ion_device_create(long (*custom_ioctl) struct ion_device *idev; int ret; - idev = kzalloc(sizeof(struct ion_device), GFP_KERNEL); + idev = kzalloc(sizeof(*idev), GFP_KERNEL); if (!idev) return ERR_PTR(-ENOMEM); -- cgit v0.10.2 From 9f37d399f19f9efbcecafe647ba3cf3c9653bb05 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 11:36:57 -0700 Subject: staging: comedi: amplc_pc263: tidy up digital output subdevice init For aesthetics, add some whitespace to the digital output subdevice initialization. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c index b1946ce..13d8ed2 100644 --- a/drivers/staging/comedi/drivers/amplc_pc263.c +++ b/drivers/staging/comedi/drivers/amplc_pc263.c @@ -80,14 +80,15 @@ static int pc263_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (ret) return ret; + /* Digital Output subdevice */ s = &dev->subdevices[0]; - /* digital output subdevice */ - s->type = COMEDI_SUBD_DO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = 16; - s->maxdata = 1; - s->range_table = &range_digital; - s->insn_bits = pc263_do_insn_bits; + s->type = COMEDI_SUBD_DO; + s->subdev_flags = SDF_WRITABLE; + s->n_chan = 16; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = pc263_do_insn_bits; + /* read initial relay state */ s->state = inb(dev->iobase) | (inb(dev->iobase + 1) << 8); -- cgit v0.10.2 From d69917a64ae78c27348164e7cabc03a838df3e40 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 11:36:56 -0700 Subject: staging: comedi: amplc_pc263: tidy up comedi_driver definition For aesthetics, add some whitespace to the comedi_driver definition. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c index 13d8ed2..eb447e5 100644 --- a/drivers/staging/comedi/drivers/amplc_pc263.c +++ b/drivers/staging/comedi/drivers/amplc_pc263.c @@ -96,13 +96,13 @@ static int pc263_attach(struct comedi_device *dev, struct comedi_devconfig *it) } static struct comedi_driver amplc_pc263_driver = { - .driver_name = "amplc_pc263", - .module = THIS_MODULE, - .attach = pc263_attach, - .detach = comedi_legacy_detach, - .board_name = &pc263_boards[0].name, - .offset = sizeof(struct pc263_board), - .num_names = ARRAY_SIZE(pc263_boards), + .driver_name = "amplc_pc263", + .module = THIS_MODULE, + .attach = pc263_attach, + .detach = comedi_legacy_detach, + .board_name = &pc263_boards[0].name, + .offset = sizeof(struct pc263_board), + .num_names = ARRAY_SIZE(pc263_boards), }; module_comedi_driver(amplc_pc263_driver); -- cgit v0.10.2 From 1b50167146139402be0924aab55062b391cb8956 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 11:36:58 -0700 Subject: staging: comedi: amplc_pc263: define the register map For completeness, define the registers used by this driver and remove the magic numbers. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c index eb447e5..fc075ed 100644 --- a/drivers/staging/comedi/drivers/amplc_pc263.c +++ b/drivers/staging/comedi/drivers/amplc_pc263.c @@ -37,10 +37,8 @@ The state of the outputs can be read. #include "../comedidev.h" /* PC263 registers */ - -/* - * Board descriptions for Amplicon PC263. - */ +#define PC263_DO_0_7_REG 0x00 +#define PC263_DO_8_15_REG 0x01 struct pc263_board { const char *name; @@ -58,8 +56,8 @@ static int pc263_do_insn_bits(struct comedi_device *dev, unsigned int *data) { if (comedi_dio_update_state(s, data)) { - outb(s->state & 0xff, dev->iobase); - outb((s->state >> 8) & 0xff, dev->iobase + 1); + outb(s->state & 0xff, dev->iobase + PC263_DO_0_7_REG); + outb((s->state >> 8) & 0xff, dev->iobase + PC263_DO_8_15_REG); } data[1] = s->state; @@ -90,7 +88,8 @@ static int pc263_attach(struct comedi_device *dev, struct comedi_devconfig *it) s->insn_bits = pc263_do_insn_bits; /* read initial relay state */ - s->state = inb(dev->iobase) | (inb(dev->iobase + 1) << 8); + s->state = inb(dev->iobase + PC263_DO_0_7_REG) | + (inb(dev->iobase + PC263_DO_8_15_REG) << 8); return 0; } -- cgit v0.10.2 From 05380cde47247daec0956fb818c63093a92d5585 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 11:36:55 -0700 Subject: staging: comedi: amplc_pc263: fix block comments Fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c index fc075ed..58b0b6b 100644 --- a/drivers/staging/comedi/drivers/amplc_pc263.c +++ b/drivers/staging/comedi/drivers/amplc_pc263.c @@ -1,37 +1,37 @@ /* - comedi/drivers/amplc_pc263.c - Driver for Amplicon PC263 and PCI263 relay boards. + * Driver for Amplicon PC263 relay board. + * + * Copyright (C) 2002 MEV Ltd. + * + * COMEDI - Linux Control and Measurement Device Interface + * Copyright (C) 2000 David A. Schleef + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ - Copyright (C) 2002 MEV Ltd. - - COMEDI - Linux Control and Measurement Device Interface - Copyright (C) 2000 David A. Schleef - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ /* -Driver: amplc_pc263 -Description: Amplicon PC263 -Author: Ian Abbott -Devices: [Amplicon] PC263 (pc263) -Updated: Fri, 12 Apr 2013 15:19:36 +0100 -Status: works - -Configuration options: - [0] - I/O port base address - -The board appears as one subdevice, with 16 digital outputs, each -connected to a reed-relay. Relay contacts are closed when output is 1. -The state of the outputs can be read. -*/ + * Driver: amplc_pc263 + * Description: Amplicon PC263 + * Author: Ian Abbott + * Devices: [Amplicon] PC263 (pc263) + * Updated: Fri, 12 Apr 2013 15:19:36 +0100 + * Status: works + * + * Configuration options: + * [0] - I/O port base address + * + * The board appears as one subdevice, with 16 digital outputs, each + * connected to a reed-relay. Relay contacts are closed when output is 1. + * The state of the outputs can be read. + */ #include #include "../comedidev.h" -- cgit v0.10.2 From eecbf23476d33c79c9315277ed2b2e17ef34a955 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 11:09:48 -0700 Subject: staging: comedi: amplc_dio200_common: Prefer 'unsigned int' to bare use of 'unsigned' Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c b/drivers/staging/comedi/drivers/amplc_dio200_common.c index d1539e7..071d2fb 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200_common.c +++ b/drivers/staging/comedi/drivers/amplc_dio200_common.c @@ -221,7 +221,7 @@ static void dio200_start_intr(struct comedi_device *dev, struct dio200_subdev_intr *subpriv = s->private; struct comedi_cmd *cmd = &s->async->cmd; unsigned int n; - unsigned isn_bits; + unsigned int isn_bits; /* Determine interrupt sources to enable. */ isn_bits = 0; @@ -284,9 +284,9 @@ static int dio200_handle_read_intr(struct comedi_device *dev, { const struct dio200_board *board = dev->board_ptr; struct dio200_subdev_intr *subpriv = s->private; - unsigned triggered; - unsigned intstat; - unsigned cur_enabled; + unsigned int triggered; + unsigned int intstat; + unsigned int cur_enabled; unsigned long flags; triggered = 0; @@ -439,7 +439,7 @@ static int dio200_subdev_intr_cmd(struct comedi_device *dev, static int dio200_subdev_intr_init(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int offset, - unsigned valid_isns) + unsigned int valid_isns) { const struct dio200_board *board = dev->board_ptr; struct dio200_subdev_intr *subpriv; -- cgit v0.10.2 From 6050b1cfc66c421546880c0219cbce9102800099 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 11:09:49 -0700 Subject: staging: comedi: amplc_dio200_common: document spinlock definition Fix the checkpatch.pl issue: CHECK: spinlock_t definition without comment Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c b/drivers/staging/comedi/drivers/amplc_dio200_common.c index 071d2fb..f6e4e98 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200_common.c +++ b/drivers/staging/comedi/drivers/amplc_dio200_common.c @@ -101,7 +101,7 @@ struct dio200_subdev_8255 { }; struct dio200_subdev_intr { - spinlock_t spinlock; + spinlock_t spinlock; /* protects the 'active' flag */ unsigned int ofs; unsigned int valid_isns; unsigned int enabled_isns; -- cgit v0.10.2 From 61ac7ccfb5cbe59ee940f0a7b3ad4fd3e3ce8c37 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 12:19:21 -0700 Subject: staging: comedi: amplc_pci230: Prefer using the BIT macro Fix the checkpatch.pl issues by using the BIT macro and defining some macros for the multi-bit fields. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c index cf5ac8a..5d0cb37 100644 --- a/drivers/staging/comedi/drivers/amplc_pci230.c +++ b/drivers/staging/comedi/drivers/amplc_pci230.c @@ -237,47 +237,50 @@ /* * DACCON read-write values. */ -#define PCI230_DAC_OR_UNI (0 << 0) /* Output range unipolar */ -#define PCI230_DAC_OR_BIP (1 << 0) /* Output range bipolar */ -#define PCI230_DAC_OR_MASK (1 << 0) +#define PCI230_DAC_OR(x) (((x) & 0x1) << 0) +#define PCI230_DAC_OR_UNI PCI230_DAC_OR(0) /* Output unipolar */ +#define PCI230_DAC_OR_BIP PCI230_DAC_OR(1) /* Output bipolar */ +#define PCI230_DAC_OR_MASK PCI230_DAC_OR(1) /* * The following applies only if DAC FIFO support is enabled in the EXTFUNC * register (and only for PCI230+ hardware version 2 onwards). */ -#define PCI230P2_DAC_FIFO_EN (1 << 8) /* FIFO enable */ +#define PCI230P2_DAC_FIFO_EN BIT(8) /* FIFO enable */ /* * The following apply only if the DAC FIFO is enabled (and only for PCI230+ * hardware version 2 onwards). */ -#define PCI230P2_DAC_TRIG_NONE (0 << 2) /* No trigger */ -#define PCI230P2_DAC_TRIG_SW (1 << 2) /* Software trigger trigger */ -#define PCI230P2_DAC_TRIG_EXTP (2 << 2) /* EXTTRIG +ve edge trigger */ -#define PCI230P2_DAC_TRIG_EXTN (3 << 2) /* EXTTRIG -ve edge trigger */ -#define PCI230P2_DAC_TRIG_Z2CT0 (4 << 2) /* CT0-OUT +ve edge trigger */ -#define PCI230P2_DAC_TRIG_Z2CT1 (5 << 2) /* CT1-OUT +ve edge trigger */ -#define PCI230P2_DAC_TRIG_Z2CT2 (6 << 2) /* CT2-OUT +ve edge trigger */ -#define PCI230P2_DAC_TRIG_MASK (7 << 2) -#define PCI230P2_DAC_FIFO_WRAP (1 << 7) /* FIFO wraparound mode */ -#define PCI230P2_DAC_INT_FIFO_EMPTY (0 << 9) /* FIFO interrupt empty */ -#define PCI230P2_DAC_INT_FIFO_NEMPTY (1 << 9) -#define PCI230P2_DAC_INT_FIFO_NHALF (2 << 9) /* FIFO intr not half full */ -#define PCI230P2_DAC_INT_FIFO_HALF (3 << 9) -#define PCI230P2_DAC_INT_FIFO_NFULL (4 << 9) /* FIFO interrupt not full */ -#define PCI230P2_DAC_INT_FIFO_FULL (5 << 9) -#define PCI230P2_DAC_INT_FIFO_MASK (7 << 9) +#define PCI230P2_DAC_TRIG(x) (((x) & 0x7) << 2) +#define PCI230P2_DAC_TRIG_NONE PCI230P2_DAC_TRIG(0) /* none */ +#define PCI230P2_DAC_TRIG_SW PCI230P2_DAC_TRIG(1) /* soft trig */ +#define PCI230P2_DAC_TRIG_EXTP PCI230P2_DAC_TRIG(2) /* ext + edge */ +#define PCI230P2_DAC_TRIG_EXTN PCI230P2_DAC_TRIG(3) /* ext - edge */ +#define PCI230P2_DAC_TRIG_Z2CT0 PCI230P2_DAC_TRIG(4) /* Z2 CT0 out */ +#define PCI230P2_DAC_TRIG_Z2CT1 PCI230P2_DAC_TRIG(5) /* Z2 CT1 out */ +#define PCI230P2_DAC_TRIG_Z2CT2 PCI230P2_DAC_TRIG(6) /* Z2 CT2 out */ +#define PCI230P2_DAC_TRIG_MASK PCI230P2_DAC_TRIG(7) +#define PCI230P2_DAC_FIFO_WRAP BIT(7) /* FIFO wraparound mode */ +#define PCI230P2_DAC_INT_FIFO(x) (((x) & 7) << 9) +#define PCI230P2_DAC_INT_FIFO_EMPTY PCI230P2_DAC_INT_FIFO(0) /* empty */ +#define PCI230P2_DAC_INT_FIFO_NEMPTY PCI230P2_DAC_INT_FIFO(1) /* !empty */ +#define PCI230P2_DAC_INT_FIFO_NHALF PCI230P2_DAC_INT_FIFO(2) /* !half */ +#define PCI230P2_DAC_INT_FIFO_HALF PCI230P2_DAC_INT_FIFO(3) /* half */ +#define PCI230P2_DAC_INT_FIFO_NFULL PCI230P2_DAC_INT_FIFO(4) /* !full */ +#define PCI230P2_DAC_INT_FIFO_FULL PCI230P2_DAC_INT_FIFO(5) /* full */ +#define PCI230P2_DAC_INT_FIFO_MASK PCI230P2_DAC_INT_FIFO(7) /* * DACCON read-only values. */ -#define PCI230_DAC_BUSY (1 << 1) /* DAC busy. */ +#define PCI230_DAC_BUSY BIT(1) /* DAC busy. */ /* * The following apply only if the DAC FIFO is enabled (and only for PCI230+ * hardware version 2 onwards). */ -#define PCI230P2_DAC_FIFO_UNDERRUN_LATCHED (1 << 5) /* Underrun error */ -#define PCI230P2_DAC_FIFO_EMPTY (1 << 13) /* FIFO empty */ -#define PCI230P2_DAC_FIFO_FULL (1 << 14) /* FIFO full */ -#define PCI230P2_DAC_FIFO_HALF (1 << 15) /* FIFO half full */ +#define PCI230P2_DAC_FIFO_UNDERRUN_LATCHED BIT(5) /* Underrun error */ +#define PCI230P2_DAC_FIFO_EMPTY BIT(13) /* FIFO empty */ +#define PCI230P2_DAC_FIFO_FULL BIT(14) /* FIFO full */ +#define PCI230P2_DAC_FIFO_HALF BIT(15) /* FIFO half full */ /* * DACCON write-only, transient values. @@ -286,8 +289,8 @@ * The following apply only if the DAC FIFO is enabled (and only for PCI230+ * hardware version 2 onwards). */ -#define PCI230P2_DAC_FIFO_UNDERRUN_CLEAR (1 << 5) /* Clear underrun */ -#define PCI230P2_DAC_FIFO_RESET (1 << 12) /* FIFO reset */ +#define PCI230P2_DAC_FIFO_UNDERRUN_CLEAR BIT(5) /* Clear underrun */ +#define PCI230P2_DAC_FIFO_RESET BIT(12) /* FIFO reset */ /* * PCI230+ hardware version 2 DAC FIFO levels. @@ -304,44 +307,48 @@ /* * ADCCON read/write values. */ -#define PCI230_ADC_TRIG_NONE (0 << 0) /* No trigger */ -#define PCI230_ADC_TRIG_SW (1 << 0) /* Software trigger trigger */ -#define PCI230_ADC_TRIG_EXTP (2 << 0) /* EXTTRIG +ve edge trigger */ -#define PCI230_ADC_TRIG_EXTN (3 << 0) /* EXTTRIG -ve edge trigger */ -#define PCI230_ADC_TRIG_Z2CT0 (4 << 0) /* CT0-OUT +ve edge trigger */ -#define PCI230_ADC_TRIG_Z2CT1 (5 << 0) /* CT1-OUT +ve edge trigger */ -#define PCI230_ADC_TRIG_Z2CT2 (6 << 0) /* CT2-OUT +ve edge trigger */ -#define PCI230_ADC_TRIG_MASK (7 << 0) -#define PCI230_ADC_IR_UNI (0 << 3) /* Input range unipolar */ -#define PCI230_ADC_IR_BIP (1 << 3) /* Input range bipolar */ -#define PCI230_ADC_IR_MASK (1 << 3) -#define PCI230_ADC_IM_SE (0 << 4) /* Input mode single ended */ -#define PCI230_ADC_IM_DIF (1 << 4) /* Input mode differential */ -#define PCI230_ADC_IM_MASK (1 << 4) -#define PCI230_ADC_FIFO_EN (1 << 8) /* FIFO enable */ -#define PCI230_ADC_INT_FIFO_EMPTY (0 << 9) -#define PCI230_ADC_INT_FIFO_NEMPTY (1 << 9) /* FIFO interrupt not empty */ -#define PCI230_ADC_INT_FIFO_NHALF (2 << 9) -#define PCI230_ADC_INT_FIFO_HALF (3 << 9) /* FIFO interrupt half full */ -#define PCI230_ADC_INT_FIFO_NFULL (4 << 9) -#define PCI230_ADC_INT_FIFO_FULL (5 << 9) /* FIFO interrupt full */ -#define PCI230P_ADC_INT_FIFO_THRESH (7 << 9) /* FIFO interrupt threshold */ -#define PCI230_ADC_INT_FIFO_MASK (7 << 9) +#define PCI230_ADC_TRIG(x) (((x) & 0x7) << 0) +#define PCI230_ADC_TRIG_NONE PCI230_ADC_TRIG(0) /* none */ +#define PCI230_ADC_TRIG_SW PCI230_ADC_TRIG(1) /* soft trig */ +#define PCI230_ADC_TRIG_EXTP PCI230_ADC_TRIG(2) /* ext + edge */ +#define PCI230_ADC_TRIG_EXTN PCI230_ADC_TRIG(3) /* ext - edge */ +#define PCI230_ADC_TRIG_Z2CT0 PCI230_ADC_TRIG(4) /* Z2 CT0 out*/ +#define PCI230_ADC_TRIG_Z2CT1 PCI230_ADC_TRIG(5) /* Z2 CT1 out */ +#define PCI230_ADC_TRIG_Z2CT2 PCI230_ADC_TRIG(6) /* Z2 CT2 out */ +#define PCI230_ADC_TRIG_MASK PCI230_ADC_TRIG(7) +#define PCI230_ADC_IR(x) (((x) & 0x1) << 3) +#define PCI230_ADC_IR_UNI PCI230_ADC_IR(0) /* Input unipolar */ +#define PCI230_ADC_IR_BIP PCI230_ADC_IR(1) /* Input bipolar */ +#define PCI230_ADC_IR_MASK PCI230_ADC_IR(1) +#define PCI230_ADC_IM(x) (((x) & 0x1) << 4) +#define PCI230_ADC_IM_SE PCI230_ADC_IM(0) /* single ended */ +#define PCI230_ADC_IM_DIF PCI230_ADC_IM(1) /* differential */ +#define PCI230_ADC_IM_MASK PCI230_ADC_IM(1) +#define PCI230_ADC_FIFO_EN BIT(8) /* FIFO enable */ +#define PCI230_ADC_INT_FIFO(x) (((x) & 0x7) << 9) +#define PCI230_ADC_INT_FIFO_EMPTY PCI230_ADC_INT_FIFO(0) /* empty */ +#define PCI230_ADC_INT_FIFO_NEMPTY PCI230_ADC_INT_FIFO(1) /* !empty */ +#define PCI230_ADC_INT_FIFO_NHALF PCI230_ADC_INT_FIFO(2) /* !half */ +#define PCI230_ADC_INT_FIFO_HALF PCI230_ADC_INT_FIFO(3) /* half */ +#define PCI230_ADC_INT_FIFO_NFULL PCI230_ADC_INT_FIFO(4) /* !full */ +#define PCI230_ADC_INT_FIFO_FULL PCI230_ADC_INT_FIFO(5) /* full */ +#define PCI230P_ADC_INT_FIFO_THRESH PCI230_ADC_INT_FIFO(7) /* threshold */ +#define PCI230_ADC_INT_FIFO_MASK PCI230_ADC_INT_FIFO(7) /* * ADCCON write-only, transient values. */ -#define PCI230_ADC_FIFO_RESET (1 << 12) /* FIFO reset */ -#define PCI230_ADC_GLOB_RESET (1 << 13) /* Global reset */ +#define PCI230_ADC_FIFO_RESET BIT(12) /* FIFO reset */ +#define PCI230_ADC_GLOB_RESET BIT(13) /* Global reset */ /* * ADCCON read-only values. */ -#define PCI230_ADC_BUSY (1 << 15) /* ADC busy */ -#define PCI230_ADC_FIFO_EMPTY (1 << 12) /* FIFO empty */ -#define PCI230_ADC_FIFO_FULL (1 << 13) /* FIFO full */ -#define PCI230_ADC_FIFO_HALF (1 << 14) /* FIFO half full */ -#define PCI230_ADC_FIFO_FULL_LATCHED (1 << 5) /* FIFO overrun occurred */ +#define PCI230_ADC_BUSY BIT(15) /* ADC busy */ +#define PCI230_ADC_FIFO_EMPTY BIT(12) /* FIFO empty */ +#define PCI230_ADC_FIFO_FULL BIT(13) /* FIFO full */ +#define PCI230_ADC_FIFO_HALF BIT(14) /* FIFO half full */ +#define PCI230_ADC_FIFO_FULL_LATCHED BIT(5) /* FIFO overrun occurred */ /* * PCI230 ADC FIFO levels. @@ -353,10 +360,10 @@ * PCI230+ EXTFUNC values. */ /* Route EXTTRIG pin to external gate inputs. */ -#define PCI230P_EXTFUNC_GAT_EXTTRIG (1 << 0) +#define PCI230P_EXTFUNC_GAT_EXTTRIG BIT(0) /* PCI230+ hardware version 2 values. */ /* Allow DAC FIFO to be enabled. */ -#define PCI230P2_EXTFUNC_DACFIFO (1 << 1) +#define PCI230P2_EXTFUNC_DACFIFO BIT(1) /* * Counter/timer clock input configuration sources. @@ -402,20 +409,20 @@ static inline unsigned int pci230_gat_config(unsigned int chan, * Interrupt enables/status register values. */ #define PCI230_INT_DISABLE 0 -#define PCI230_INT_PPI_C0 (1 << 0) -#define PCI230_INT_PPI_C3 (1 << 1) -#define PCI230_INT_ADC (1 << 2) -#define PCI230_INT_ZCLK_CT1 (1 << 5) +#define PCI230_INT_PPI_C0 BIT(0) +#define PCI230_INT_PPI_C3 BIT(1) +#define PCI230_INT_ADC BIT(2) +#define PCI230_INT_ZCLK_CT1 BIT(5) /* For PCI230+ hardware version 2 when DAC FIFO enabled. */ -#define PCI230P2_INT_DAC (1 << 4) +#define PCI230P2_INT_DAC BIT(4) /* * (Potentially) shared resources and their owners */ enum { - RES_Z2CT0 = (1U << 0), /* Z2-CT0 */ - RES_Z2CT1 = (1U << 1), /* Z2-CT1 */ - RES_Z2CT2 = (1U << 2) /* Z2-CT2 */ + RES_Z2CT0 = BIT(0), /* Z2-CT0 */ + RES_Z2CT1 = BIT(1), /* Z2-CT1 */ + RES_Z2CT2 = BIT(2) /* Z2-CT2 */ }; enum { -- cgit v0.10.2 From e76415f47f9f4ec4f0289f8194eae0726dc27dfd Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 12:19:22 -0700 Subject: staging: comedi: amplc_pci230: Prefer kernel type 'u64' over 'uint64_t' Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c index 5d0cb37..42945de 100644 --- a/drivers/staging/comedi/drivers/amplc_pci230.c +++ b/drivers/staging/comedi/drivers/amplc_pci230.c @@ -637,10 +637,10 @@ static void pci230_release_all_resources(struct comedi_device *dev, pci230_release_shared(dev, (unsigned char)~0, owner); } -static unsigned int pci230_divide_ns(uint64_t ns, unsigned int timebase, +static unsigned int pci230_divide_ns(u64 ns, unsigned int timebase, unsigned int flags) { - uint64_t div; + u64 div; unsigned int rem; div = ns; @@ -663,7 +663,7 @@ static unsigned int pci230_divide_ns(uint64_t ns, unsigned int timebase, * Given desired period in ns, returns the required internal clock source * and gets the initial count. */ -static unsigned int pci230_choose_clk_count(uint64_t ns, unsigned int *count, +static unsigned int pci230_choose_clk_count(u64 ns, unsigned int *count, unsigned int flags) { unsigned int clk_src, cnt; @@ -687,7 +687,7 @@ static void pci230_ns_to_single_timer(unsigned int *ns, unsigned int flags) } static void pci230_ct_setup_ns_mode(struct comedi_device *dev, unsigned int ct, - unsigned int mode, uint64_t ns, + unsigned int mode, u64 ns, unsigned int flags) { unsigned int clk_src; @@ -2250,7 +2250,7 @@ static int pci230_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) zgat = pci230_gat_config(0, GAT_VCC); outb(zgat, dev->iobase + PCI230_ZGAT_SCE); pci230_ct_setup_ns_mode(dev, 0, I8254_MODE1, - ((uint64_t)cmd->convert_arg * + ((u64)cmd->convert_arg * cmd->scan_end_arg), CMDF_ROUND_UP); if (cmd->scan_begin_src == TRIG_TIMER) { -- cgit v0.10.2 From 9bc9e60e4f48b2917718d0dcf8a3cbb9f7687dd7 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 12:34:53 -0700 Subject: staging: comedi: c6xdigio: Prefer using the BIT macro Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/c6xdigio.c b/drivers/staging/comedi/drivers/c6xdigio.c index 1a109e3..8ee7325 100644 --- a/drivers/staging/comedi/drivers/c6xdigio.c +++ b/drivers/staging/comedi/drivers/c6xdigio.c @@ -47,8 +47,8 @@ */ #define C6XDIGIO_DATA_REG 0x00 #define C6XDIGIO_DATA_CHAN(x) (((x) + 1) << 4) -#define C6XDIGIO_DATA_PWM (1 << 5) -#define C6XDIGIO_DATA_ENCODER (1 << 6) +#define C6XDIGIO_DATA_PWM BIT(5) +#define C6XDIGIO_DATA_ENCODER BIT(6) #define C6XDIGIO_STATUS_REG 0x01 #define C6XDIGIO_CTRL_REG 0x02 -- cgit v0.10.2 From f91852ce61339ca0ca557c7ce5838f3a774a1bf5 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 10:47:24 -0700 Subject: staging: comedi: drivers: tidy up insn_rw_emulate_bits() Tidy up this function and fix the checkpatch.pl issues: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index b63dd2e..e3bbc8f 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -575,38 +575,35 @@ EXPORT_SYMBOL_GPL(comedi_handle_events); static int insn_rw_emulate_bits(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_insn *insn, + unsigned int *data) { - struct comedi_insn new_insn; + struct comedi_insn _insn; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned int base_chan = (chan < 32) ? 0 : chan; + unsigned int _data[2]; int ret; - static const unsigned channels_per_bitfield = 32; - - unsigned chan = CR_CHAN(insn->chanspec); - const unsigned base_bitfield_channel = - (chan < channels_per_bitfield) ? 0 : chan; - unsigned int new_data[2]; - memset(new_data, 0, sizeof(new_data)); - memset(&new_insn, 0, sizeof(new_insn)); - new_insn.insn = INSN_BITS; - new_insn.chanspec = base_bitfield_channel; - new_insn.n = 2; - new_insn.subdev = insn->subdev; + memset(_data, 0, sizeof(_data)); + memset(&_insn, 0, sizeof(_insn)); + _insn.insn = INSN_BITS; + _insn.chanspec = base_chan; + _insn.n = 2; + _insn.subdev = insn->subdev; if (insn->insn == INSN_WRITE) { if (!(s->subdev_flags & SDF_WRITABLE)) return -EINVAL; - new_data[0] = 1 << (chan - base_bitfield_channel); /* mask */ - new_data[1] = data[0] ? (1 << (chan - base_bitfield_channel)) - : 0; /* bits */ + _data[0] = 1 << (chan - base_chan); /* mask */ + _data[1] = data[0] ? (1 << (chan - base_chan)) : 0; /* bits */ } - ret = s->insn_bits(dev, s, &new_insn, new_data); + ret = s->insn_bits(dev, s, &_insn, _data); if (ret < 0) return ret; if (insn->insn == INSN_READ) - data[0] = (new_data[1] >> (chan - base_bitfield_channel)) & 1; + data[0] = (_data[1] >> (chan - base_chan)) & 1; return 1; } -- cgit v0.10.2 From 7be7cd10ade121cd5363c5f8790638b177b5e9dd Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 10:47:25 -0700 Subject: staging: comedi: drivers: fix possible bug in comedi_handle_events() This function assumes that the async subdevice has a cancel() function. It looks like all the current comedi drivers implement a cancel() for the async subdevices except for the dt2814 analog input usbdevice. Fix comedi_handle_events() so it does not try to call a non-existent cancel() function. Add a dev_warn() to __comedi_device_postconfig_async() so that any new driver authors will be reminded to implement the cancel(). Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index e3bbc8f..44511d7 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -564,7 +564,7 @@ unsigned int comedi_handle_events(struct comedi_device *dev, if (events == 0) return events; - if (events & COMEDI_CB_CANCEL_MASK) + if ((events & COMEDI_CB_CANCEL_MASK) && s->cancel) s->cancel(dev, s); comedi_event(dev, s); @@ -625,6 +625,9 @@ static int __comedi_device_postconfig_async(struct comedi_device *dev, "async subdevices must have a do_cmdtest() function\n"); return -EINVAL; } + if (!s->cancel) + dev_warn(dev->class_dev, + "async subdevices should have a cancel() function\n"); async = kzalloc(sizeof(*async), GFP_KERNEL); if (!async) -- cgit v0.10.2 From db94bfad3b05c9a3cd5c151018db142b07486d02 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 11:45:17 -0700 Subject: staging: comedi: amplc_pci263: fix block comments Fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pci263.c b/drivers/staging/comedi/drivers/amplc_pci263.c index b6768aa..fa36bd5 100644 --- a/drivers/staging/comedi/drivers/amplc_pci263.c +++ b/drivers/staging/comedi/drivers/amplc_pci263.c @@ -1,36 +1,36 @@ /* - comedi/drivers/amplc_pci263.c - Driver for Amplicon PCI263 relay board. + * Driver for Amplicon PCI263 relay board. + * + * Copyright (C) 2002 MEV Ltd. + * + * COMEDI - Linux Control and Measurement Device Interface + * Copyright (C) 2000 David A. Schleef + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ - Copyright (C) 2002 MEV Ltd. - - COMEDI - Linux Control and Measurement Device Interface - Copyright (C) 2000 David A. Schleef - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ /* -Driver: amplc_pci263 -Description: Amplicon PCI263 -Author: Ian Abbott -Devices: [Amplicon] PCI263 (amplc_pci263) -Updated: Fri, 12 Apr 2013 15:19:36 +0100 -Status: works - -Configuration options: not applicable, uses PCI auto config - -The board appears as one subdevice, with 16 digital outputs, each -connected to a reed-relay. Relay contacts are closed when output is 1. -The state of the outputs can be read. -*/ + * Driver: amplc_pci263 + * Description: Amplicon PCI263 + * Author: Ian Abbott + * Devices: [Amplicon] PCI263 (amplc_pci263) + * Updated: Fri, 12 Apr 2013 15:19:36 +0100 + * Status: works + * + * Configuration options: not applicable, uses PCI auto config + * + * The board appears as one subdevice, with 16 digital outputs, each + * connected to a reed-relay. Relay contacts are closed when output is 1. + * The state of the outputs can be read. + */ #include -- cgit v0.10.2 From 1ee79c8ee88e74fdd778c024caf84d741a134409 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 11:45:18 -0700 Subject: staging: comedi: amplc_pci263: tidy up digital output subdevice init For aesthetics, add some whitespace to the digital output subdevice initialization. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pci263.c b/drivers/staging/comedi/drivers/amplc_pci263.c index fa36bd5..c47f042 100644 --- a/drivers/staging/comedi/drivers/amplc_pci263.c +++ b/drivers/staging/comedi/drivers/amplc_pci263.c @@ -67,14 +67,15 @@ static int pci263_auto_attach(struct comedi_device *dev, if (ret) return ret; + /* Digital Output subdevice */ s = &dev->subdevices[0]; - /* digital output subdevice */ - s->type = COMEDI_SUBD_DO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = 16; - s->maxdata = 1; - s->range_table = &range_digital; - s->insn_bits = pci263_do_insn_bits; + s->type = COMEDI_SUBD_DO; + s->subdev_flags = SDF_WRITABLE; + s->n_chan = 16; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = pci263_do_insn_bits; + /* read initial relay state */ s->state = inb(dev->iobase) | (inb(dev->iobase + 1) << 8); -- cgit v0.10.2 From 623211de9a3bfd0fabc81f8bff8c79fd9e4944ba Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 11:45:19 -0700 Subject: staging: comedi: amplc_pci263: define the register map For completeness, define the registers used by this driver and remove the magic numbers. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pci263.c b/drivers/staging/comedi/drivers/amplc_pci263.c index c47f042..8d4069b 100644 --- a/drivers/staging/comedi/drivers/amplc_pci263.c +++ b/drivers/staging/comedi/drivers/amplc_pci263.c @@ -36,14 +36,18 @@ #include "../comedi_pci.h" +/* PCI263 registers */ +#define PCI263_DO_0_7_REG 0x00 +#define PCI263_DO_8_15_REG 0x01 + static int pci263_do_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { if (comedi_dio_update_state(s, data)) { - outb(s->state & 0xff, dev->iobase); - outb((s->state >> 8) & 0xff, dev->iobase + 1); + outb(s->state & 0xff, dev->iobase + PCI263_DO_0_7_REG); + outb((s->state >> 8) & 0xff, dev->iobase + PCI263_DO_8_15_REG); } data[1] = s->state; @@ -77,7 +81,8 @@ static int pci263_auto_attach(struct comedi_device *dev, s->insn_bits = pci263_do_insn_bits; /* read initial relay state */ - s->state = inb(dev->iobase) | (inb(dev->iobase + 1) << 8); + s->state = inb(dev->iobase + PCI263_DO_0_7_REG) | + (inb(dev->iobase + PCI263_DO_8_15_REG) << 8); return 0; } -- cgit v0.10.2 From e078cb2a64fd588557ef2dec573622699a05d642 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 30 Mar 2016 12:00:29 -0700 Subject: staging: comedi: amplc_pci224: Prefer using the BIT macro Fix the checkpatch.pl issues by using the BIT macro and defining some macros for the multi-bit fields. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c index cac011f..2e6decf 100644 --- a/drivers/staging/comedi/drivers/amplc_pci224.c +++ b/drivers/staging/comedi/drivers/amplc_pci224.c @@ -132,48 +132,53 @@ * DACCON values. */ /* (r/w) Scan trigger. */ -#define PCI224_DACCON_TRIG_MASK (7 << 0) -#define PCI224_DACCON_TRIG_NONE (0 << 0) /* none */ -#define PCI224_DACCON_TRIG_SW (1 << 0) /* software trig */ -#define PCI224_DACCON_TRIG_EXTP (2 << 0) /* ext +ve edge */ -#define PCI224_DACCON_TRIG_EXTN (3 << 0) /* ext -ve edge */ -#define PCI224_DACCON_TRIG_Z2CT0 (4 << 0) /* Z2 CT0 out */ -#define PCI224_DACCON_TRIG_Z2CT1 (5 << 0) /* Z2 CT1 out */ -#define PCI224_DACCON_TRIG_Z2CT2 (6 << 0) /* Z2 CT2 out */ +#define PCI224_DACCON_TRIG(x) (((x) & 0x7) << 0) +#define PCI224_DACCON_TRIG_MASK PCI224_DACCON_TRIG(7) +#define PCI224_DACCON_TRIG_NONE PCI224_DACCON_TRIG(0) /* none */ +#define PCI224_DACCON_TRIG_SW PCI224_DACCON_TRIG(1) /* soft trig */ +#define PCI224_DACCON_TRIG_EXTP PCI224_DACCON_TRIG(2) /* ext + edge */ +#define PCI224_DACCON_TRIG_EXTN PCI224_DACCON_TRIG(3) /* ext - edge */ +#define PCI224_DACCON_TRIG_Z2CT0 PCI224_DACCON_TRIG(4) /* Z2 CT0 out */ +#define PCI224_DACCON_TRIG_Z2CT1 PCI224_DACCON_TRIG(5) /* Z2 CT1 out */ +#define PCI224_DACCON_TRIG_Z2CT2 PCI224_DACCON_TRIG(6) /* Z2 CT2 out */ /* (r/w) Polarity (PCI224 only, PCI234 always bipolar!). */ -#define PCI224_DACCON_POLAR_MASK (1 << 3) -#define PCI224_DACCON_POLAR_UNI (0 << 3) /* range [0,Vref] */ -#define PCI224_DACCON_POLAR_BI (1 << 3) /* range [-Vref,Vref] */ +#define PCI224_DACCON_POLAR(x) (((x) & 0x1) << 3) +#define PCI224_DACCON_POLAR_MASK PCI224_DACCON_POLAR(1) +#define PCI224_DACCON_POLAR_UNI PCI224_DACCON_POLAR(0) /* [0,+V] */ +#define PCI224_DACCON_POLAR_BI PCI224_DACCON_POLAR(1) /* [-V,+V] */ /* (r/w) Internal Vref (PCI224 only, when LK1 in position 1-2). */ -#define PCI224_DACCON_VREF_MASK (3 << 4) -#define PCI224_DACCON_VREF_1_25 (0 << 4) /* Vref = 1.25V */ -#define PCI224_DACCON_VREF_2_5 (1 << 4) /* Vref = 2.5V */ -#define PCI224_DACCON_VREF_5 (2 << 4) /* Vref = 5V */ -#define PCI224_DACCON_VREF_10 (3 << 4) /* Vref = 10V */ +#define PCI224_DACCON_VREF(x) (((x) & 0x3) << 4) +#define PCI224_DACCON_VREF_MASK PCI224_DACCON_VREF(3) +#define PCI224_DACCON_VREF_1_25 PCI224_DACCON_VREF(0) /* 1.25V */ +#define PCI224_DACCON_VREF_2_5 PCI224_DACCON_VREF(1) /* 2.5V */ +#define PCI224_DACCON_VREF_5 PCI224_DACCON_VREF(2) /* 5V */ +#define PCI224_DACCON_VREF_10 PCI224_DACCON_VREF(3) /* 10V */ /* (r/w) Wraparound mode enable (to play back stored waveform). */ -#define PCI224_DACCON_FIFOWRAP (1 << 7) +#define PCI224_DACCON_FIFOWRAP BIT(7) /* (r/w) FIFO enable. It MUST be set! */ -#define PCI224_DACCON_FIFOENAB (1 << 8) +#define PCI224_DACCON_FIFOENAB BIT(8) /* (r/w) FIFO interrupt trigger level (most values are not very useful). */ -#define PCI224_DACCON_FIFOINTR_MASK (7 << 9) -#define PCI224_DACCON_FIFOINTR_EMPTY (0 << 9) /* when empty */ -#define PCI224_DACCON_FIFOINTR_NEMPTY (1 << 9) /* when not empty */ -#define PCI224_DACCON_FIFOINTR_NHALF (2 << 9) /* when not half full */ -#define PCI224_DACCON_FIFOINTR_HALF (3 << 9) /* when half full */ -#define PCI224_DACCON_FIFOINTR_NFULL (4 << 9) /* when not full */ -#define PCI224_DACCON_FIFOINTR_FULL (5 << 9) /* when full */ +#define PCI224_DACCON_FIFOINTR(x) (((x) & 0x7) << 9) +#define PCI224_DACCON_FIFOINTR_MASK PCI224_DACCON_FIFOINTR(7) +#define PCI224_DACCON_FIFOINTR_EMPTY PCI224_DACCON_FIFOINTR(0) /* empty */ +#define PCI224_DACCON_FIFOINTR_NEMPTY PCI224_DACCON_FIFOINTR(1) /* !empty */ +#define PCI224_DACCON_FIFOINTR_NHALF PCI224_DACCON_FIFOINTR(2) /* !half */ +#define PCI224_DACCON_FIFOINTR_HALF PCI224_DACCON_FIFOINTR(3) /* half */ +#define PCI224_DACCON_FIFOINTR_NFULL PCI224_DACCON_FIFOINTR(4) /* !full */ +#define PCI224_DACCON_FIFOINTR_FULL PCI224_DACCON_FIFOINTR(5) /* full */ /* (r-o) FIFO fill level. */ -#define PCI224_DACCON_FIFOFL_MASK (7 << 12) -#define PCI224_DACCON_FIFOFL_EMPTY (1 << 12) /* 0 */ -#define PCI224_DACCON_FIFOFL_ONETOHALF (0 << 12) /* [1,2048] */ -#define PCI224_DACCON_FIFOFL_HALFTOFULL (4 << 12) /* [2049,4095] */ -#define PCI224_DACCON_FIFOFL_FULL (6 << 12) /* 4096 */ +#define PCI224_DACCON_FIFOFL(x) (((x) & 0x7) << 12) +#define PCI224_DACCON_FIFOFL_MASK PCI224_DACCON_FIFOFL(7) +#define PCI224_DACCON_FIFOFL_EMPTY PCI224_DACCON_FIFOFL(1) /* 0 */ +#define PCI224_DACCON_FIFOFL_ONETOHALF PCI224_DACCON_FIFOFL(0) /* 1-2048 */ +#define PCI224_DACCON_FIFOFL_HALFTOFULL PCI224_DACCON_FIFOFL(4) /* 2049-4095 */ +#define PCI224_DACCON_FIFOFL_FULL PCI224_DACCON_FIFOFL(6) /* 4096 */ /* (r-o) DAC busy flag. */ -#define PCI224_DACCON_BUSY (1 << 15) +#define PCI224_DACCON_BUSY BIT(15) /* (w-o) FIFO reset. */ -#define PCI224_DACCON_FIFORESET (1 << 12) +#define PCI224_DACCON_FIFORESET BIT(12) /* (w-o) Global reset (not sure what it does). */ -#define PCI224_DACCON_GLOBALRESET (1 << 13) +#define PCI224_DACCON_GLOBALRESET BIT(13) /* * DAC FIFO size. -- cgit v0.10.2 From d8bf4bee49728e31b1d225630c39714a6c42648c Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Mon, 28 Mar 2016 13:54:15 +0900 Subject: staging: dgnc: replace dgnc_offset_table with bit shift. the dgnc_offset_table has a same value with (1 << port). So I tried to replace dgnc_offset_table array with 1 << port. And also there are redundant assignments(tmp and current_port) inside while loop for checking uart port, and remove them. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index d732e6e..6b57c44 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -77,9 +77,6 @@ struct board_ops dgnc_neo_ops = { .send_immediate_char = neo_send_immediate_char }; -static uint dgnc_offset_table[8] = { 0x01, 0x02, 0x04, 0x08, - 0x10, 0x20, 0x40, 0x80 }; - /* * This function allows calls to ensure that all outstanding * PCI writes have been completed, by doing a PCI read against @@ -923,9 +920,7 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) struct dgnc_board *brd = voidbrd; struct channel_t *ch; int port = 0; - int type = 0; - int current_port; - u32 tmp; + int type; u32 uart_poll; unsigned long flags; unsigned long flags2; @@ -960,29 +955,12 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) /* At this point, we have at least SOMETHING to service, dig further... */ - current_port = 0; - /* Loop on each port */ while ((uart_poll & 0xff) != 0) { - tmp = uart_poll; - - /* Check current port to see if it has interrupt pending */ - if ((tmp & dgnc_offset_table[current_port]) != 0) { - port = current_port; - type = tmp >> (8 + (port * 3)); - type &= 0x7; - } else { - current_port++; - continue; - } - - /* Remove this port + type from uart_poll */ - uart_poll &= ~(dgnc_offset_table[port]); + type = uart_poll >> (8 + (port * 3)); + type &= 0x7; - if (!type) { - /* If no type, just ignore it, and move onto next port */ - continue; - } + uart_poll &= ~(0x01 << port); /* Switch on type of interrupt we have */ switch (type) { @@ -994,7 +972,7 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) /* Verify the port is in range. */ if (port >= brd->nasync) - continue; + break; ch = brd->channels[port]; neo_copy_data_from_uart_to_queue(ch); @@ -1004,14 +982,14 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) dgnc_check_queue_flow_control(ch); spin_unlock_irqrestore(&ch->ch_lock, flags2); - continue; + break; case UART_17158_RX_LINE_STATUS: /* * RXRDY and RX LINE Status (logic OR of LSR[4:1]) */ neo_parse_lsr(brd, port); - continue; + break; case UART_17158_TXRDY: /* @@ -1027,14 +1005,14 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) * it should be, I was getting things like RXDY too. Weird. */ neo_parse_isr(brd, port); - continue; + break; case UART_17158_MSR: /* * MSR or flow control was seen. */ neo_parse_isr(brd, port); - continue; + break; default: /* @@ -1043,8 +1021,10 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) * these once and awhile. * Its harmless, just ignore it and move on. */ - continue; + break; } + + port++; } /* -- cgit v0.10.2 From a1115c9f7826143600d12f72cda7bb0be404c842 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Tue, 29 Mar 2016 13:47:59 +0900 Subject: staging: dgnc: remove parenthesis around the CONST | remove parenthesis around the CONST | CONST. It will be also fixed checkpatch.pl warning about "Alignment should match open parenthesis" becasue parenthesis were removed by this patch. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index 6b57c44..ee7f2da 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -114,8 +114,8 @@ static inline void neo_set_cts_flow_control(struct channel_t *ch) writeb(efr, &ch->ch_neo_uart->efr); /* Turn on table D, with 8 char hi/low watermarks */ - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), - &ch->ch_neo_uart->fctr); + writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY, + &ch->ch_neo_uart->fctr); /* Feed the UART our trigger levels */ writeb(8, &ch->ch_neo_uart->tfifo); @@ -149,8 +149,8 @@ static inline void neo_set_rts_flow_control(struct channel_t *ch) /* Turn on UART enhanced bits */ writeb(efr, &ch->ch_neo_uart->efr); - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), - &ch->ch_neo_uart->fctr); + writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY, + &ch->ch_neo_uart->fctr); ch->ch_r_watermark = 4; writeb(32, &ch->ch_neo_uart->rfifo); @@ -187,7 +187,7 @@ static inline void neo_set_ixon_flow_control(struct channel_t *ch) /* Turn on UART enhanced bits */ writeb(efr, &ch->ch_neo_uart->efr); - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), + writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY, &ch->ch_neo_uart->fctr); ch->ch_r_watermark = 4; @@ -226,8 +226,8 @@ static inline void neo_set_ixoff_flow_control(struct channel_t *ch) writeb(efr, &ch->ch_neo_uart->efr); /* Turn on table D, with 8 char hi/low watermarks */ - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), - &ch->ch_neo_uart->fctr); + writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY, + &ch->ch_neo_uart->fctr); writeb(8, &ch->ch_neo_uart->tfifo); ch->ch_t_tlevel = 8; @@ -267,8 +267,8 @@ static inline void neo_set_no_input_flow_control(struct channel_t *ch) writeb(efr, &ch->ch_neo_uart->efr); /* Turn on table D, with 8 char hi/low watermarks */ - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), - &ch->ch_neo_uart->fctr); + writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY, + &ch->ch_neo_uart->fctr); ch->ch_r_watermark = 0; @@ -305,8 +305,8 @@ static inline void neo_set_no_output_flow_control(struct channel_t *ch) writeb(efr, &ch->ch_neo_uart->efr); /* Turn on table D, with 8 char hi/low watermarks */ - writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), - &ch->ch_neo_uart->fctr); + writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY, + &ch->ch_neo_uart->fctr); ch->ch_r_watermark = 0; @@ -1353,7 +1353,7 @@ static void neo_flush_uart_read(struct channel_t *ch) if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) return; - writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR), + writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR, &ch->ch_neo_uart->isr_fcr); neo_pci_posting_flush(ch->ch_bd); @@ -1628,7 +1628,7 @@ static void neo_uart_init(struct channel_t *ch) /* Clear out UART and FIFO */ readb(&ch->ch_neo_uart->txrx); - writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT), + writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT, &ch->ch_neo_uart->isr_fcr); readb(&ch->ch_neo_uart->lsr); readb(&ch->ch_neo_uart->msr); -- cgit v0.10.2 From ffe4f329460ded65b339522abcbdc7aa18021dc9 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Tue, 29 Mar 2016 13:48:31 +0900 Subject: staging: dgnc: fix 'line over 80 characters' fix checkpatch.pl warning about 'line over 80 characters'. I just moved all line comment to above if statement. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index ee7f2da..6105ccb 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -1785,9 +1785,15 @@ static void neo_vpd(struct dgnc_board *brd) brd->vpd[(i * 2) + 1] = (a >> 8) & 0xff; } - if (((brd->vpd[0x08] != 0x82) /* long resource name tag */ - && (brd->vpd[0x10] != 0x82)) /* long resource name tag (PCI-66 files)*/ - || (brd->vpd[0x7F] != 0x78)) { /* small resource end tag */ + /* + * brd->vpd has different name tags by below index. + * 0x08 : long resource name tag + * 0x10 : long resource name tage (PCI-66 files) + * 0x7F : small resource end tag + */ + if (((brd->vpd[0x08] != 0x82) + && (brd->vpd[0x10] != 0x82)) + || (brd->vpd[0x7F] != 0x78)) { memset(brd->vpd, '\0', NEO_VPD_IMAGESIZE); } else { -- cgit v0.10.2 From 3996ae3482935fb531e522b3f23248a6581015a8 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Tue, 29 Mar 2016 13:48:57 +0900 Subject: staging: dgnc: fix Logical continuations. fix checkpatch.pl warning about 'Logical continuations should be on the previous line' Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index 6105ccb..2da6a72 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -1791,9 +1791,9 @@ static void neo_vpd(struct dgnc_board *brd) * 0x10 : long resource name tage (PCI-66 files) * 0x7F : small resource end tag */ - if (((brd->vpd[0x08] != 0x82) - && (brd->vpd[0x10] != 0x82)) - || (brd->vpd[0x7F] != 0x78)) { + if (((brd->vpd[0x08] != 0x82) && + (brd->vpd[0x10] != 0x82)) || + (brd->vpd[0x7F] != 0x78)) { memset(brd->vpd, '\0', NEO_VPD_IMAGESIZE); } else { -- cgit v0.10.2 From 56e18f8cdf057a8c6e68906ff584cf655ea1e328 Mon Sep 17 00:00:00 2001 From: Clifton Barnes Date: Tue, 29 Mar 2016 18:12:40 -0400 Subject: staging: xgifb: fix block comments fix checkpatch.pl warning about 'Block comments use a trailing */ on a separate line' and 'Block comments use * on subsequent lines' Signed-off-by: Clifton Barnes Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/xgifb/vb_init.c b/drivers/staging/xgifb/vb_init.c index 29da955..062ece2 100644 --- a/drivers/staging/xgifb/vb_init.c +++ b/drivers/staging/xgifb/vb_init.c @@ -355,7 +355,8 @@ static void XGINew_DDR2_DefaultRegister( unsigned long P3d4 = Port, P3c4 = Port - 0x10; /* keep following setting sequence, each setting in - * the same reg insert idle */ + * the same reg insert idle + */ xgifb_reg_set(P3d4, 0x82, 0x77); xgifb_reg_set(P3d4, 0x86, 0x00); xgifb_reg_get(P3d4, 0x86); /* Insert read command for delay */ @@ -700,11 +701,11 @@ static void XGINew_CheckChannel(struct xgi_hw_device_info *HwDeviceExtension, break; case XG42: /* - XG42 SR14 D[3] Reserve - D[2] = 1, Dual Channel - = 0, Single Channel - - It's Different from Other XG40 Series. + * XG42 SR14 D[3] Reserve + * D[2] = 1, Dual Channel + * = 0, Single Channel + * + * It's Different from Other XG40 Series. */ if (XGINew_CheckFrequence(pVBInfo) == 1) { /* DDRII, DDR2x */ pVBInfo->ram_bus = 32; /* 32 bits */ diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c index cc1ad76..50c8ea4 100644 --- a/drivers/staging/xgifb/vb_setmode.c +++ b/drivers/staging/xgifb/vb_setmode.c @@ -1992,7 +1992,8 @@ static void XGI_GetVBInfo(unsigned short ModeIdIndex, } /* LCD+TV can't support in slave mode - * (Force LCDA+TV->LCDB) */ + * (Force LCDA+TV->LCDB) + */ if ((tempbx & SetInSlaveMode) && (tempbx & XGI_SetCRT2ToLCDA)) { tempbx ^= (SetCRT2ToLCD | XGI_SetCRT2ToLCDA | SetCRT2ToDualEdge); diff --git a/drivers/staging/xgifb/vb_table.h b/drivers/staging/xgifb/vb_table.h index 45f2c99..c801deb 100644 --- a/drivers/staging/xgifb/vb_table.h +++ b/drivers/staging/xgifb/vb_table.h @@ -58,8 +58,9 @@ static const unsigned char XGI27_cr41[24][3] = { {0xC4, 0x40, 0x84}, /* 1 CR8A */ {0xC4, 0x40, 0x84}, /* 2 CR8B */ {0xB3, 0x13, 0xa4}, /* 3 CR40[7], - CR99[2:0], - CR45[3:0]*/ + * CR99[2:0], + * CR45[3:0] + */ {0xf0, 0xf5, 0xf0}, /* 4 CR59 */ {0x90, 0x90, 0x24}, /* 5 CR68 */ {0x77, 0x67, 0x44}, /* 6 CR69 */ @@ -101,9 +102,11 @@ const struct XGI_ExtStruct XGI330_EModeIDTable[] = { {0x38, 0x0a1b, 0x0508, 0x08, 0x00, 0x16}, {0x3a, 0x0e3b, 0x0609, 0x09, 0x00, 0x1e}, {0x3c, 0x0e3b, 0x070a, 0x0a, 0x00, 0x22}, /* mode 1600x1200 - add CRT2MODE [2003/10/07] */ + * add CRT2MODE [2003/10/07] + */ {0x3d, 0x0e7d, 0x070a, 0x0a, 0x00, 0x22}, /* mode 1600x1200 - add CRT2MODE */ + * add CRT2MODE + */ {0x40, 0x9a1c, 0x0000, 0x00, 0x04, 0x00}, {0x41, 0x9a1d, 0x0000, 0x00, 0x04, 0x00}, {0x43, 0x0a1c, 0x0306, 0x06, 0x05, 0x06}, @@ -129,7 +132,8 @@ const struct XGI_ExtStruct XGI330_EModeIDTable[] = { {0x64, 0x0a7f, 0x0508, 0x08, 0x00, 0x16}, {0x65, 0x0eff, 0x0609, 0x09, 0x00, 0x1e}, {0x66, 0x0eff, 0x070a, 0x0a, 0x00, 0x22}, /* mode 1600x1200 - add CRT2MODE */ + * add CRT2MODE + */ {0x68, 0x067b, 0x080b, 0x0b, 0x00, 0x29}, {0x69, 0x06fd, 0x080b, 0x0b, 0x00, 0x29}, {0x6b, 0x07ff, 0x080b, 0x0b, 0x00, 0x29}, @@ -223,38 +227,38 @@ const struct XGI_CRT1TableStruct XGI_CRT1Table[] = { 0x0D, 0x3E, 0xE0, 0x83, 0xDF, 0x0E, 0x90} }, /* 0xb */ { {0x65, 0x4F, 0x89, 0x57, 0x9F, 0x00, 0x01, 0x00, 0xFB, 0x1F, 0xE6, 0x8A, 0xDF, 0xFC, 0x10} }, /* 0xc */ - { {0x7B, 0x63, 0x9F, 0x6A, 0x93, 0x00, 0x05, 0x00, /* ; - 0D (800x600,56Hz) */ - 0x6F, 0xF0, 0x58, 0x8A, 0x57, 0x70, 0xA0} }, /* ; - (VCLK 36.0MHz) */ - { {0x7F, 0x63, 0x83, 0x6C, 0x1C, 0x00, 0x06, 0x00, /* ; - 0E (800x600,60Hz) */ - 0x72, 0xF0, 0x58, 0x8C, 0x57, 0x73, 0xA0} }, /* ; - (VCLK 40.0MHz) */ - { {0x7D, 0x63, 0x81, 0x6E, 0x1D, 0x00, 0x06, 0x00, /* ; - 0F (800x600,72Hz) */ - 0x98, 0xF0, 0x7C, 0x82, 0x57, 0x99, 0x80} }, /* ; - (VCLK 50.0MHz) */ - { {0x7F, 0x63, 0x83, 0x69, 0x13, 0x00, 0x06, 0x00, /* ; - 10 (800x600,75Hz) */ - 0x6F, 0xF0, 0x58, 0x8B, 0x57, 0x70, 0xA0} }, /* ; - (VCLK 49.5MHz) */ - { {0x7E, 0x63, 0x82, 0x6B, 0x13, 0x00, 0x06, 0x00, /* ; - 11 (800x600,85Hz) */ - 0x75, 0xF0, 0x58, 0x8B, 0x57, 0x76, 0xA0} }, /* ; - (VCLK 56.25MHz) */ - { {0x81, 0x63, 0x85, 0x6D, 0x18, 0x00, 0x06, 0x60, /* ; - 12 (800x600,100Hz) */ - 0x7A, 0xF0, 0x58, 0x8B, 0x57, 0x7B, 0xA0} }, /* ; - (VCLK 75.8MHz) */ - { {0x83, 0x63, 0x87, 0x6E, 0x19, 0x00, 0x06, 0x60, /* ; - 13 (800x600,120Hz) */ - 0x81, 0xF0, 0x58, 0x8B, 0x57, 0x82, 0xA0} }, /* ; - (VCLK 79.411MHz) */ - { {0x85, 0x63, 0x89, 0x6F, 0x1A, 0x00, 0x06, 0x60, /* ; - 14 (800x600,160Hz) */ - 0x91, 0xF0, 0x58, 0x8B, 0x57, 0x92, 0xA0} }, /* ; - (VCLK 105.822MHz) */ + /* 0D (800x600,56Hz) */ + { {0x7B, 0x63, 0x9F, 0x6A, 0x93, 0x00, 0x05, 0x00, + /* (VCLK 36.0MHz) */ + 0x6F, 0xF0, 0x58, 0x8A, 0x57, 0x70, 0xA0} }, + /* 0E (800x600,60Hz) */ + { {0x7F, 0x63, 0x83, 0x6C, 0x1C, 0x00, 0x06, 0x00, + /* (VCLK 40.0MHz) */ + 0x72, 0xF0, 0x58, 0x8C, 0x57, 0x73, 0xA0} }, + /* 0F (800x600,72Hz) */ + { {0x7D, 0x63, 0x81, 0x6E, 0x1D, 0x00, 0x06, 0x00, + /* (VCLK 50.0MHz) */ + 0x98, 0xF0, 0x7C, 0x82, 0x57, 0x99, 0x80} }, + /* 10 (800x600,75Hz) */ + { {0x7F, 0x63, 0x83, 0x69, 0x13, 0x00, 0x06, 0x00, + /* (VCLK 49.5MHz) */ + 0x6F, 0xF0, 0x58, 0x8B, 0x57, 0x70, 0xA0} }, + /* 11 (800x600,85Hz) */ + { {0x7E, 0x63, 0x82, 0x6B, 0x13, 0x00, 0x06, 0x00, + /* (VCLK 56.25MHz) */ + 0x75, 0xF0, 0x58, 0x8B, 0x57, 0x76, 0xA0} }, + /* 12 (800x600,100Hz) */ + { {0x81, 0x63, 0x85, 0x6D, 0x18, 0x00, 0x06, 0x60, + /* (VCLK 75.8MHz) */ + 0x7A, 0xF0, 0x58, 0x8B, 0x57, 0x7B, 0xA0} }, + /* 13 (800x600,120Hz) */ + { {0x83, 0x63, 0x87, 0x6E, 0x19, 0x00, 0x06, 0x60, + /* (VCLK 79.411MHz) */ + 0x81, 0xF0, 0x58, 0x8B, 0x57, 0x82, 0xA0} }, + /* 14 (800x600,160Hz) */ + { {0x85, 0x63, 0x89, 0x6F, 0x1A, 0x00, 0x06, 0x60, + /* (VCLK 105.822MHz) */ + 0x91, 0xF0, 0x58, 0x8B, 0x57, 0x92, 0xA0} }, { {0x99, 0x7F, 0x9D, 0x84, 0x1A, 0x00, 0x02, 0x00, 0x96, 0x1F, 0x7F, 0x83, 0x7F, 0x97, 0x10} }, /* 0x15 */ { {0xA3, 0x7F, 0x87, 0x86, 0x97, 0x00, 0x02, 0x00, @@ -388,7 +392,8 @@ static const struct SiS_LCDData XGI_ExtLCD1024x768Data[] = { static const struct SiS_LCDData XGI_CetLCD1024x768Data[] = { {1, 1, 1344, 806, 1344, 806}, /* ; 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {1, 1, 1344, 806, 1344, 806}, /* 01 (320x350,640x350) */ {1, 1, 1344, 806, 1344, 806}, /* 02 (360x400,720x400) */ {1, 1, 1344, 806, 1344, 806}, /* 03 (720x350) */ @@ -421,7 +426,8 @@ static const struct SiS_LCDData XGI_ExtLCD1280x1024Data[] = { static const struct SiS_LCDData XGI_CetLCD1280x1024Data[] = { {1, 1, 1688, 1066, 1688, 1066}, /* 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {1, 1, 1688, 1066, 1688, 1066}, /* 01 (320x350,640x350) */ {1, 1, 1688, 1066, 1688, 1066}, /* 02 (360x400,720x400) */ {1, 1, 1688, 1066, 1688, 1066}, /* 03 (720x350) */ @@ -434,7 +440,8 @@ static const struct SiS_LCDData XGI_CetLCD1280x1024Data[] = { static const struct SiS_LCDData xgifb_lcd_1400x1050[] = { {211, 100, 2100, 408, 1688, 1066}, /* 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {211, 64, 1536, 358, 1688, 1066}, /* 01 (320x350,640x350) */ {211, 100, 2100, 408, 1688, 1066}, /* 02 (360x400,720x400) */ {211, 64, 1536, 358, 1688, 1066}, /* 03 (720x350) */ @@ -442,13 +449,15 @@ static const struct SiS_LCDData xgifb_lcd_1400x1050[] = { {211, 72, 1008, 609, 1688, 1066}, /* 05 (800x600x60Hz) */ {211, 128, 1400, 776, 1688, 1066}, /* 06 (1024x768x60Hz) */ {1, 1, 1688, 1066, 1688, 1066}, /* 07 (1280x1024x60Hz - w/o Scaling) */ + * w/o Scaling) + */ {1, 1, 1688, 1066, 1688, 1066} /* 08 (1400x1050x60Hz) */ }; static const struct SiS_LCDData XGI_ExtLCD1600x1200Data[] = { {4, 1, 1620, 420, 2160, 1250}, /* 00 (320x200,320x400, - 640x200,640x400)*/ + * 640x200,640x400) + */ {27, 7, 1920, 375, 2160, 1250}, /* 01 (320x350,640x350) */ {4, 1, 1620, 420, 2160, 1250}, /* 02 (360x400,720x400)*/ {27, 7, 1920, 375, 2160, 1250}, /* 03 (720x350) */ @@ -462,7 +471,8 @@ static const struct SiS_LCDData XGI_ExtLCD1600x1200Data[] = { static const struct SiS_LCDData XGI_StLCD1600x1200Data[] = { {27, 4, 800, 500, 2160, 1250}, /* 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {27, 4, 800, 500, 2160, 1250}, /* 01 (320x350,640x350) */ {27, 4, 800, 500, 2160, 1250}, /* 02 (360x400,720x400) */ {27, 4, 800, 500, 2160, 1250}, /* 03 (720x350) */ @@ -489,7 +499,8 @@ static const struct SiS_LCDData XGI_NoScalingData[] = { static const struct SiS_LCDData XGI_ExtLCD1024x768x75Data[] = { {42, 25, 1536, 419, 1344, 806}, /* ; 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {48, 25, 1536, 369, 1344, 806}, /* ; 01 (320x350,640x350) */ {42, 25, 1536, 419, 1344, 806}, /* ; 02 (360x400,720x400) */ {48, 25, 1536, 369, 1344, 806}, /* ; 03 (720x350) */ @@ -500,7 +511,8 @@ static const struct SiS_LCDData XGI_ExtLCD1024x768x75Data[] = { static const struct SiS_LCDData XGI_CetLCD1024x768x75Data[] = { {1, 1, 1312, 800, 1312, 800}, /* ; 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {1, 1, 1312, 800, 1312, 800}, /* ; 01 (320x350,640x350) */ {1, 1, 1312, 800, 1312, 800}, /* ; 02 (360x400,720x400) */ {1, 1, 1312, 800, 1312, 800}, /* ; 03 (720x350) */ @@ -511,7 +523,8 @@ static const struct SiS_LCDData XGI_CetLCD1024x768x75Data[] = { static const struct SiS_LCDData xgifb_lcd_1280x1024x75[] = { {211, 60, 1024, 501, 1688, 1066}, /* ; 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {211, 60, 1024, 508, 1688, 1066}, /* ; 01 (320x350,640x350) */ {211, 60, 1024, 501, 1688, 1066}, /* ; 02 (360x400,720x400) */ {211, 60, 1024, 508, 1688, 1066}, /* ; 03 (720x350) */ @@ -525,7 +538,8 @@ static const struct SiS_LCDData xgifb_lcd_1280x1024x75[] = { static const struct SiS_LCDData XGI_NoScalingDatax75[] = { {1, 1, 800, 449, 800, 449}, /* ; 00 (320x200, 320x400, - 640x200, 640x400) */ + * 640x200, 640x400) + */ {1, 1, 800, 449, 800, 449}, /* ; 01 (320x350, 640x350) */ {1, 1, 900, 449, 900, 449}, /* ; 02 (360x400, 720x400) */ {1, 1, 900, 449, 900, 449}, /* ; 03 (720x350) */ @@ -732,7 +746,8 @@ static const struct XGI_LCDDesStruct XGI_StLCDDes1600x1200Data[] = { static const struct XGI330_LCDDataDesStruct2 XGI_NoScalingDesData[] = { {9, 657, 448, 405, 96, 2}, /* 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {9, 657, 448, 355, 96, 2}, /* 01 (320x350,640x350) */ {9, 657, 448, 405, 96, 2}, /* 02 (360x400,720x400) */ {9, 657, 448, 355, 96, 2}, /* 03 (720x350) */ @@ -818,7 +833,8 @@ static const struct XGI_LCDDesStruct XGI_CetLCDDes1280x1024x75Data[] = { /* Scaling LCD 75Hz */ static const struct XGI330_LCDDataDesStruct2 XGI_NoScalingDesDatax75[] = { {9, 657, 448, 405, 96, 2}, /* ; 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {9, 657, 448, 355, 96, 2}, /* ; 01 (320x350,640x350) */ {9, 738, 448, 405, 108, 2}, /* ; 02 (360x400,720x400) */ {9, 738, 448, 355, 108, 2}, /* ; 03 (720x350) */ @@ -873,7 +889,8 @@ static const struct SiS_TVData XGI_ExtNTSCData[] = { static const struct SiS_TVData XGI_St1HiTVData[] = { {1, 1, 892, 563, 690, 800, 0, 0, 0}, /* 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {1, 1, 892, 563, 690, 700, 0, 0, 0}, /* 01 (320x350,640x350) */ {1, 1, 1000, 563, 785, 800, 0, 0, 0}, /* 02 (360x400,720x400) */ {1, 1, 1000, 563, 785, 700, 0, 0, 0}, /* 03 (720x350) */ @@ -883,7 +900,8 @@ static const struct SiS_TVData XGI_St1HiTVData[] = { static const struct SiS_TVData XGI_St2HiTVData[] = { {3, 1, 840, 483, 1648, 960, 0x032, 0, 0}, /* 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {1, 1, 892, 563, 690, 700, 0, 0, 0}, /* 01 (320x350,640x350) */ {3, 1, 840, 483, 1648, 960, 0x032, 0, 0}, /* 02 (360x400,720x400) */ {1, 1, 1000, 563, 785, 700, 0, 0, 0}, /* 03 (720x350) */ @@ -893,7 +911,8 @@ static const struct SiS_TVData XGI_St2HiTVData[] = { static const struct SiS_TVData XGI_ExtHiTVData[] = { {6, 1, 840, 563, 1632, 960, 0, 0, 0}, /* 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {3, 1, 960, 563, 1632, 960, 0, 0, 0}, /* 01 (320x350,640x350) */ {3, 1, 840, 483, 1632, 960, 0, 0, 0}, /* 02 (360x400,720x400) */ {3, 1, 960, 563, 1632, 960, 0, 0, 0}, /* 03 (720x350) */ @@ -948,7 +967,8 @@ static const struct SiS_TVData XGI_StYPbPr525pData[] = { static const struct SiS_TVData XGI_ExtYPbPr750pData[] = { { 3, 1, 935, 470, 1130, 680, 50, 0, 0}, /* 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {24, 7, 935, 420, 1130, 680, 50, 0, 0}, /* 01 (320x350,640x350) */ { 3, 1, 935, 470, 1130, 680, 50, 0, 0}, /* 02 (360x400,720x400) */ {24, 7, 935, 420, 1130, 680, 50, 0, 0}, /* 03 (720x350) */ @@ -1269,7 +1289,8 @@ static const struct SiS_LVDSData XGI_LVDSNoScalingDatax75[] = { {1312, 800, 1312, 800}, /* ; 06 (1024x768x75Hz) */ {1688, 1066, 1688, 1066}, /* ; 07 (1280x1024x75Hz) */ {1688, 1066, 1688, 1066}, /* ; 08 (1400x1050x75Hz) - ;;[ycchen] 12/19/02 */ + * ;;[ycchen] 12/19/02 + */ {2160, 1250, 2160, 1250}, /* ; 09 (1600x1200x75Hz) */ {1688, 806, 1688, 806}, /* ; 0A (1280x768x75Hz) */ }; @@ -1364,7 +1385,8 @@ static const struct SiS_LVDSData XGI_LVDS1600x1200Des_1[] = { static const struct XGI330_LCDDataDesStruct2 XGI_LVDSNoScalingDesData[] = { {0, 648, 448, 405, 96, 2}, /* 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {0, 648, 448, 355, 96, 2}, /* 01 (320x350,640x350) */ {0, 648, 448, 405, 96, 2}, /* 02 (360x400,720x400) */ {0, 648, 448, 355, 96, 2}, /* 03 (720x350) */ @@ -1435,7 +1457,8 @@ static const struct SiS_LVDSData XGI_LVDS1280x1024Des_2x75[] = { /* Scaling LCD 75Hz */ static const struct XGI330_LCDDataDesStruct2 XGI_LVDSNoScalingDesDatax75[] = { {0, 648, 448, 405, 96, 2}, /* ; 00 (320x200,320x400, - 640x200,640x400) */ + * 640x200,640x400) + */ {0, 648, 448, 355, 96, 2}, /* ; 01 (320x350,640x350) */ {0, 729, 448, 405, 108, 2}, /* ; 02 (360x400,720x400) */ {0, 729, 448, 355, 108, 2}, /* ; 03 (720x350) */ -- cgit v0.10.2 From 81108182bba96fcc738ddc912e9fcbb5afe01ef0 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Wed, 30 Mar 2016 19:48:22 -0400 Subject: staging/lustre/obdclass: limit lu_site hash table size Allocating a big hash table using the formula for osd does not really work for clients. We will create new hash table for each mount on a single client which is a lot of memory more than expected. This patch limits the hash table up to 8M which has 524288 entries Signed-off-by: Li Dongyang Reviewed-on: http://review.whamcloud.com/18048 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7689 Reviewed-by: Fan Yong Reviewed-by: Alex Zhuravlev Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c index 65a4746..69fdcee 100644 --- a/drivers/staging/lustre/lustre/obdclass/lu_object.c +++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c @@ -935,7 +935,7 @@ static void lu_dev_add_linkage(struct lu_site *s, struct lu_device *d) * Initialize site \a s, with \a d as the top level device. */ #define LU_SITE_BITS_MIN 12 -#define LU_SITE_BITS_MAX 24 +#define LU_SITE_BITS_MAX 19 /** * total 256 buckets, we don't want too many buckets because: * - consume too much memory -- cgit v0.10.2 From 616387e86d531d1d29173aabb8adefb20d316d96 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Wed, 30 Mar 2016 19:48:23 -0400 Subject: staging/lustre: Get rid of CFS_PAGE_MASK CFS_PAGE_MASK is the same as PAGE_MASK, so get rid of it. We are replacing it with PAGE_MASK instead of PAGE_CACHE_MASK because PAGE_CACHE_* stuff is apparently going away. Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h index 0f2fd79..448379b 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h @@ -57,7 +57,6 @@ #include "../libcfs_cpu.h" #endif -#define CFS_PAGE_MASK (~((__u64)PAGE_CACHE_SIZE-1)) #define page_index(p) ((p)->index) #define memory_pressure_get() (current->flags & PF_MEMALLOC) diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c index 0715101..84f9b7b 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c @@ -227,7 +227,7 @@ int cfs_crypto_hash_update_page(struct cfs_crypto_hash_desc *hdesc, struct scatterlist sl; sg_init_table(&sl, 1); - sg_set_page(&sl, page, len, offset & ~CFS_PAGE_MASK); + sg_set_page(&sl, page, len, offset & ~PAGE_MASK); ahash_request_set_crypt(req, &sl, NULL, sl.length); return crypto_ahash_update(req); diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index b33c356..1988cee 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -457,7 +457,7 @@ brw_server_handle(struct srpc_server_rpc *rpc) if (!(reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN)) { /* compat with old version */ - if (reqst->brw_len & ~CFS_PAGE_MASK) { + if (reqst->brw_len & ~PAGE_MASK) { reply->brw_status = EINVAL; return 0; } diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c index 69445a9..baccf93 100644 --- a/drivers/staging/lustre/lustre/llite/llite_mmap.c +++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c @@ -57,10 +57,10 @@ void policy_from_vma(ldlm_policy_data_t *policy, struct vm_area_struct *vma, unsigned long addr, size_t count) { - policy->l_extent.start = ((addr - vma->vm_start) & CFS_PAGE_MASK) + + policy->l_extent.start = ((addr - vma->vm_start) & PAGE_MASK) + (vma->vm_pgoff << PAGE_CACHE_SHIFT); policy->l_extent.end = (policy->l_extent.start + count - 1) | - ~CFS_PAGE_MASK; + ~PAGE_MASK; } struct vm_area_struct *our_vma(struct mm_struct *mm, unsigned long addr, diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index 7a5db67..3d7e64e 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -376,7 +376,7 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter, return -EBADF; /* FIXME: io smaller than PAGE_SIZE is broken on ia64 ??? */ - if ((file_offset & ~CFS_PAGE_MASK) || (count & ~CFS_PAGE_MASK)) + if ((file_offset & ~PAGE_MASK) || (count & ~PAGE_MASK)) return -EINVAL; CDEBUG(D_VFSTRACE, @@ -386,7 +386,7 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter, MAX_DIO_SIZE >> PAGE_CACHE_SHIFT); /* Check that all user buffers are aligned as well */ - if (iov_iter_alignment(iter) & ~CFS_PAGE_MASK) + if (iov_iter_alignment(iter) & ~PAGE_MASK) return -EINVAL; env = cl_env_get(&refcheck); @@ -435,8 +435,8 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter, size > (PAGE_CACHE_SIZE / sizeof(*pages)) * PAGE_CACHE_SIZE) { size = ((((size / 2) - 1) | - ~CFS_PAGE_MASK) + 1) & - CFS_PAGE_MASK; + ~PAGE_MASK) + 1) & + PAGE_MASK; CDEBUG(D_VFSTRACE, "DIO size now %lu\n", size); continue; diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index fb0c26e..984699a 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -234,8 +234,8 @@ static int vvp_mmap_locks(const struct lu_env *env, if (count == 0) continue; - count += addr & (~CFS_PAGE_MASK); - addr &= CFS_PAGE_MASK; + count += addr & (~PAGE_MASK); + addr &= PAGE_MASK; down_read(&mm->mmap_sem); while ((vma = our_vma(mm, addr, count)) != NULL) { @@ -1043,7 +1043,7 @@ static int vvp_io_commit_write(const struct lu_env *env, to = PAGE_CACHE_SIZE; need_clip = false; } else if (last_index == pg->cp_index) { - int size_to = i_size_read(inode) & ~CFS_PAGE_MASK; + int size_to = i_size_read(inode) & ~PAGE_MASK; if (to < size_to) to = size_to; diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c index 0f776cf..e3a7216 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c +++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c @@ -2071,7 +2071,7 @@ static void lmv_adjust_dirpages(struct page **pages, int ncfspgs, int nlupgs) dp = (struct lu_dirpage *)((char *)dp + LU_PAGE_SIZE); /* Check if we've reached the end of the CFS_PAGE. */ - if (!((unsigned long)dp & ~CFS_PAGE_MASK)) + if (!((unsigned long)dp & ~PAGE_MASK)) break; /* Save the hash and flags of this lu_dirpage. */ diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c index 1a938e1..d9844ba 100644 --- a/drivers/staging/lustre/lustre/obdclass/class_obd.c +++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c @@ -461,7 +461,7 @@ static int obd_init_checks(void) CWARN("LPD64 wrong length! strlen(%s)=%d != 2\n", buf, len); ret = -EINVAL; } - if ((u64val & ~CFS_PAGE_MASK) >= PAGE_CACHE_SIZE) { + if ((u64val & ~PAGE_MASK) >= PAGE_CACHE_SIZE) { CWARN("mask failed: u64val %llu >= %llu\n", u64val, (__u64)PAGE_CACHE_SIZE); ret = -EINVAL; diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c index 64ffe24..33ce0c8 100644 --- a/drivers/staging/lustre/lustre/obdecho/echo_client.c +++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c @@ -1119,7 +1119,7 @@ static int cl_echo_object_brw(struct echo_object *eco, int rw, u64 offset, int rc; int i; - LASSERT((offset & ~CFS_PAGE_MASK) == 0); + LASSERT((offset & ~PAGE_MASK) == 0); LASSERT(ed->ed_next); env = cl_env_get(&refcheck); if (IS_ERR(env)) @@ -1387,7 +1387,7 @@ static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa, LASSERT(rw == OBD_BRW_WRITE || rw == OBD_BRW_READ); if (count <= 0 || - (count & (~CFS_PAGE_MASK)) != 0) + (count & (~PAGE_MASK)) != 0) return -EINVAL; /* XXX think again with misaligned I/O */ @@ -1470,7 +1470,7 @@ static int echo_client_prep_commit(const struct lu_env *env, u64 npages, tot_pages; int i, ret = 0, brw_flags = 0; - if (count <= 0 || (count & (~CFS_PAGE_MASK)) != 0) + if (count <= 0 || (count & (~PAGE_MASK)) != 0) return -EINVAL; npages = batch >> PAGE_CACHE_SHIFT; diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index 6336311..3cfd2b0 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -877,7 +877,7 @@ int osc_extent_finish(const struct lu_env *env, struct osc_extent *ext, * span a whole chunk on the OST side, or our accounting goes * wrong. Should match the code in filter_grant_check. */ - int offset = oap->oap_page_off & ~CFS_PAGE_MASK; + int offset = oap->oap_page_off & ~PAGE_MASK; int count = oap->oap_count + (offset & (blocksize - 1)); int end = (offset + oap->oap_count) & (blocksize - 1); @@ -2238,7 +2238,7 @@ int osc_prep_async_page(struct osc_object *osc, struct osc_page *ops, oap->oap_page = page; oap->oap_obj_off = offset; - LASSERT(!(offset & ~CFS_PAGE_MASK)); + LASSERT(!(offset & ~PAGE_MASK)); if (!client_is_remote(exp) && capable(CFS_CAP_SYS_RESOURCE)) oap->oap_brw_flags = OBD_BRW_NOQUOTA; diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index ec0287f..850d5dd 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -1082,7 +1082,7 @@ static void handle_short_read(int nob_read, u32 page_count, if (pga[i]->count > nob_read) { /* EOF inside this page */ ptr = kmap(pga[i]->pg) + - (pga[i]->off & ~CFS_PAGE_MASK); + (pga[i]->off & ~PAGE_MASK); memset(ptr + nob_read, 0, pga[i]->count - nob_read); kunmap(pga[i]->pg); page_count--; @@ -1097,7 +1097,7 @@ static void handle_short_read(int nob_read, u32 page_count, /* zero remaining pages */ while (page_count-- > 0) { - ptr = kmap(pga[i]->pg) + (pga[i]->off & ~CFS_PAGE_MASK); + ptr = kmap(pga[i]->pg) + (pga[i]->off & ~PAGE_MASK); memset(ptr, 0, pga[i]->count); kunmap(pga[i]->pg); i++; @@ -1188,20 +1188,20 @@ static u32 osc_checksum_bulk(int nob, u32 pg_count, if (i == 0 && opc == OST_READ && OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_RECEIVE)) { unsigned char *ptr = kmap(pga[i]->pg); - int off = pga[i]->off & ~CFS_PAGE_MASK; + int off = pga[i]->off & ~PAGE_MASK; memcpy(ptr + off, "bad1", min(4, nob)); kunmap(pga[i]->pg); } cfs_crypto_hash_update_page(hdesc, pga[i]->pg, - pga[i]->off & ~CFS_PAGE_MASK, + pga[i]->off & ~PAGE_MASK, count); CDEBUG(D_PAGE, "page %p map %p index %lu flags %lx count %u priv %0lx: off %d\n", pga[i]->pg, pga[i]->pg->mapping, pga[i]->pg->index, (long)pga[i]->pg->flags, page_count(pga[i]->pg), page_private(pga[i]->pg), - (int)(pga[i]->off & ~CFS_PAGE_MASK)); + (int)(pga[i]->off & ~PAGE_MASK)); nob -= pga[i]->count; pg_count--; @@ -1309,7 +1309,7 @@ static int osc_brw_prep_request(int cmd, struct client_obd *cli, pg_prev = pga[0]; for (requested_nob = i = 0; i < page_count; i++, niobuf++) { struct brw_page *pg = pga[i]; - int poff = pg->off & ~CFS_PAGE_MASK; + int poff = pg->off & ~PAGE_MASK; LASSERT(pg->count > 0); /* make sure there is no gap in the middle of page array */ @@ -2227,8 +2227,8 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, /* Filesystem lock extents are extended to page boundaries so that * dealing with the page cache is a little smoother. */ - policy->l_extent.start -= policy->l_extent.start & ~CFS_PAGE_MASK; - policy->l_extent.end |= ~CFS_PAGE_MASK; + policy->l_extent.start -= policy->l_extent.start & ~PAGE_MASK; + policy->l_extent.end |= ~PAGE_MASK; /* * kms is not valid when either object is completely fresh (so that no @@ -2378,8 +2378,8 @@ int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id, /* Filesystem lock extents are extended to page boundaries so that * dealing with the page cache is a little smoother */ - policy->l_extent.start -= policy->l_extent.start & ~CFS_PAGE_MASK; - policy->l_extent.end |= ~CFS_PAGE_MASK; + policy->l_extent.start -= policy->l_extent.start & ~PAGE_MASK; + policy->l_extent.end |= ~PAGE_MASK; /* Next, search for already existing extent locks that will cover us */ /* If we're trying to read, we also search for an existing PW lock. The @@ -2784,7 +2784,7 @@ out: goto skip_locking; policy.l_extent.start = fm_key->fiemap.fm_start & - CFS_PAGE_MASK; + PAGE_MASK; if (OBD_OBJECT_EOF - fm_key->fiemap.fm_length <= fm_key->fiemap.fm_start + PAGE_CACHE_SIZE - 1) @@ -2792,7 +2792,7 @@ out: else policy.l_extent.end = (fm_key->fiemap.fm_start + fm_key->fiemap.fm_length + - PAGE_CACHE_SIZE - 1) & CFS_PAGE_MASK; + PAGE_CACHE_SIZE - 1) & PAGE_MASK; ostid_build_res_name(&fm_key->oa.o_oi, &res_id); mode = ldlm_lock_match(exp->exp_obd->obd_namespace, diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c index 54a0c1f..33d1411 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c +++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c @@ -527,7 +527,7 @@ int sptlrpc_get_bulk_checksum(struct ptlrpc_bulk_desc *desc, __u8 alg, for (i = 0; i < desc->bd_iov_count; i++) { cfs_crypto_hash_update_page(hdesc, desc->bd_iov[i].kiov_page, - desc->bd_iov[i].kiov_offset & ~CFS_PAGE_MASK, + desc->bd_iov[i].kiov_offset & ~PAGE_MASK, desc->bd_iov[i].kiov_len); } diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c index 6276bf5..37c9f4c 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c +++ b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c @@ -162,7 +162,7 @@ static void corrupt_bulk_data(struct ptlrpc_bulk_desc *desc) continue; ptr = kmap(desc->bd_iov[i].kiov_page); - off = desc->bd_iov[i].kiov_offset & ~CFS_PAGE_MASK; + off = desc->bd_iov[i].kiov_offset & ~PAGE_MASK; ptr[off] ^= 0x1; kunmap(desc->bd_iov[i].kiov_page); return; -- cgit v0.10.2 From a7d516d6e9b5ac2db87f5b98c67e599f95d3e512 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:24 -0400 Subject: staging/lustre: merge lclient/*.c into llite/ Separate lclient was necessary to be shared between different client implementations, make no sense to have them separate in Linux kernel. Signed-off-by: John L. Hammond Based-on: http://review.whamcloud.com/10171 Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/lclient/glimpse.c b/drivers/staging/lustre/lustre/lclient/glimpse.c deleted file mode 100644 index c4e8a08..0000000 --- a/drivers/staging/lustre/lustre/lclient/glimpse.c +++ /dev/null @@ -1,270 +0,0 @@ -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. - * - * GPL HEADER END - */ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * glimpse code shared between vvp and liblustre (and other Lustre clients in - * the future). - * - * Author: Nikita Danilov - * Author: Oleg Drokin - */ - -#include "../../include/linux/libcfs/libcfs.h" -#include "../include/obd_class.h" -#include "../include/obd_support.h" -#include "../include/obd.h" - -#include "../include/lustre_dlm.h" -#include "../include/lustre_lite.h" -#include "../include/lustre_mdc.h" -#include -#include - -#include "../include/cl_object.h" -#include "../include/lclient.h" -#include "../llite/llite_internal.h" - -static const struct cl_lock_descr whole_file = { - .cld_start = 0, - .cld_end = CL_PAGE_EOF, - .cld_mode = CLM_READ -}; - -/* - * Check whether file has possible unwriten pages. - * - * \retval 1 file is mmap-ed or has dirty pages - * 0 otherwise - */ -blkcnt_t dirty_cnt(struct inode *inode) -{ - blkcnt_t cnt = 0; - struct ccc_object *vob = cl_inode2ccc(inode); - void *results[1]; - - if (inode->i_mapping) - cnt += radix_tree_gang_lookup_tag(&inode->i_mapping->page_tree, - results, 0, 1, - PAGECACHE_TAG_DIRTY); - if (cnt == 0 && atomic_read(&vob->cob_mmap_cnt) > 0) - cnt = 1; - - return (cnt > 0) ? 1 : 0; -} - -int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, - struct inode *inode, struct cl_object *clob, int agl) -{ - struct cl_lock_descr *descr = &ccc_env_info(env)->cti_descr; - struct cl_inode_info *lli = cl_i2info(inode); - const struct lu_fid *fid = lu_object_fid(&clob->co_lu); - struct ccc_io *cio = ccc_env_io(env); - struct cl_lock *lock; - int result; - - result = 0; - if (!(lli->lli_flags & LLIF_MDS_SIZE_LOCK)) { - CDEBUG(D_DLMTRACE, "Glimpsing inode "DFID"\n", PFID(fid)); - if (lli->lli_has_smd) { - /* NOTE: this looks like DLM lock request, but it may - * not be one. Due to CEF_ASYNC flag (translated - * to LDLM_FL_HAS_INTENT by osc), this is - * glimpse request, that won't revoke any - * conflicting DLM locks held. Instead, - * ll_glimpse_callback() will be called on each - * client holding a DLM lock against this file, - * and resulting size will be returned for each - * stripe. DLM lock on [0, EOF] is acquired only - * if there were no conflicting locks. If there - * were conflicting locks, enqueuing or waiting - * fails with -ENAVAIL, but valid inode - * attributes are returned anyway. - */ - *descr = whole_file; - descr->cld_obj = clob; - descr->cld_mode = CLM_PHANTOM; - descr->cld_enq_flags = CEF_ASYNC | CEF_MUST; - if (agl) - descr->cld_enq_flags |= CEF_AGL; - cio->cui_glimpse = 1; - /* - * CEF_ASYNC is used because glimpse sub-locks cannot - * deadlock (because they never conflict with other - * locks) and, hence, can be enqueued out-of-order. - * - * CEF_MUST protects glimpse lock from conversion into - * a lockless mode. - */ - lock = cl_lock_request(env, io, descr, "glimpse", - current); - cio->cui_glimpse = 0; - - if (!lock) - return 0; - - if (IS_ERR(lock)) - return PTR_ERR(lock); - - LASSERT(agl == 0); - result = cl_wait(env, lock); - if (result == 0) { - cl_merge_lvb(env, inode); - if (cl_isize_read(inode) > 0 && - inode->i_blocks == 0) { - /* - * LU-417: Add dirty pages block count - * lest i_blocks reports 0, some "cp" or - * "tar" may think it's a completely - * sparse file and skip it. - */ - inode->i_blocks = dirty_cnt(inode); - } - cl_unuse(env, lock); - } - cl_lock_release(env, lock, "glimpse", current); - } else { - CDEBUG(D_DLMTRACE, "No objects for inode\n"); - cl_merge_lvb(env, inode); - } - } - - return result; -} - -static int cl_io_get(struct inode *inode, struct lu_env **envout, - struct cl_io **ioout, int *refcheck) -{ - struct lu_env *env; - struct cl_io *io; - struct cl_inode_info *lli = cl_i2info(inode); - struct cl_object *clob = lli->lli_clob; - int result; - - if (S_ISREG(cl_inode_mode(inode))) { - env = cl_env_get(refcheck); - if (!IS_ERR(env)) { - io = ccc_env_thread_io(env); - io->ci_obj = clob; - *envout = env; - *ioout = io; - result = 1; - } else - result = PTR_ERR(env); - } else - result = 0; - return result; -} - -int cl_glimpse_size0(struct inode *inode, int agl) -{ - /* - * We don't need ast_flags argument to cl_glimpse_size(), because - * osc_lock_enqueue() takes care of the possible deadlock that said - * argument was introduced to avoid. - */ - /* - * XXX but note that ll_file_seek() passes LDLM_FL_BLOCK_NOWAIT to - * cl_glimpse_size(), which doesn't make sense: glimpse locks are not - * blocking anyway. - */ - struct lu_env *env = NULL; - struct cl_io *io = NULL; - int result; - int refcheck; - - result = cl_io_get(inode, &env, &io, &refcheck); - if (result > 0) { -again: - io->ci_verify_layout = 1; - result = cl_io_init(env, io, CIT_MISC, io->ci_obj); - if (result > 0) - /* - * nothing to do for this io. This currently happens - * when stripe sub-object's are not yet created. - */ - result = io->ci_result; - else if (result == 0) - result = cl_glimpse_lock(env, io, inode, io->ci_obj, - agl); - - OBD_FAIL_TIMEOUT(OBD_FAIL_GLIMPSE_DELAY, 2); - cl_io_fini(env, io); - if (unlikely(io->ci_need_restart)) - goto again; - cl_env_put(env, &refcheck); - } - return result; -} - -int cl_local_size(struct inode *inode) -{ - struct lu_env *env = NULL; - struct cl_io *io = NULL; - struct ccc_thread_info *cti; - struct cl_object *clob; - struct cl_lock_descr *descr; - struct cl_lock *lock; - int result; - int refcheck; - - if (!cl_i2info(inode)->lli_has_smd) - return 0; - - result = cl_io_get(inode, &env, &io, &refcheck); - if (result <= 0) - return result; - - clob = io->ci_obj; - result = cl_io_init(env, io, CIT_MISC, clob); - if (result > 0) - result = io->ci_result; - else if (result == 0) { - cti = ccc_env_info(env); - descr = &cti->cti_descr; - - *descr = whole_file; - descr->cld_obj = clob; - lock = cl_lock_peek(env, io, descr, "localsize", current); - if (lock) { - cl_merge_lvb(env, inode); - cl_unuse(env, lock); - cl_lock_release(env, lock, "localsize", current); - result = 0; - } else - result = -ENODATA; - } - cl_io_fini(env, io); - cl_env_put(env, &refcheck); - return result; -} diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c deleted file mode 100644 index aced41a..0000000 --- a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c +++ /dev/null @@ -1,1203 +0,0 @@ -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. - * - * GPL HEADER END - */ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2015, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * cl code shared between vvp and liblustre (and other Lustre clients in the - * future). - * - * Author: Nikita Danilov - */ - -#define DEBUG_SUBSYSTEM S_LLITE - -#include "../../include/linux/libcfs/libcfs.h" -# include -# include -# include -# include -# include -# include -# include - -#include "../include/obd.h" -#include "../include/obd_support.h" -#include "../include/lustre_fid.h" -#include "../include/lustre_lite.h" -#include "../include/lustre_dlm.h" -#include "../include/lustre_ver.h" -#include "../include/lustre_mdc.h" -#include "../include/cl_object.h" - -#include "../include/lclient.h" - -#include "../llite/llite_internal.h" - -static const struct cl_req_operations ccc_req_ops; - -/* - * ccc_ prefix stands for "Common Client Code". - */ - -static struct kmem_cache *ccc_lock_kmem; -static struct kmem_cache *ccc_object_kmem; -static struct kmem_cache *ccc_thread_kmem; -static struct kmem_cache *ccc_session_kmem; -static struct kmem_cache *ccc_req_kmem; - -static struct lu_kmem_descr ccc_caches[] = { - { - .ckd_cache = &ccc_lock_kmem, - .ckd_name = "ccc_lock_kmem", - .ckd_size = sizeof(struct ccc_lock) - }, - { - .ckd_cache = &ccc_object_kmem, - .ckd_name = "ccc_object_kmem", - .ckd_size = sizeof(struct ccc_object) - }, - { - .ckd_cache = &ccc_thread_kmem, - .ckd_name = "ccc_thread_kmem", - .ckd_size = sizeof(struct ccc_thread_info), - }, - { - .ckd_cache = &ccc_session_kmem, - .ckd_name = "ccc_session_kmem", - .ckd_size = sizeof(struct ccc_session) - }, - { - .ckd_cache = &ccc_req_kmem, - .ckd_name = "ccc_req_kmem", - .ckd_size = sizeof(struct ccc_req) - }, - { - .ckd_cache = NULL - } -}; - -/***************************************************************************** - * - * Vvp device and device type functions. - * - */ - -void *ccc_key_init(const struct lu_context *ctx, struct lu_context_key *key) -{ - struct ccc_thread_info *info; - - info = kmem_cache_zalloc(ccc_thread_kmem, GFP_NOFS); - if (!info) - info = ERR_PTR(-ENOMEM); - return info; -} - -void ccc_key_fini(const struct lu_context *ctx, - struct lu_context_key *key, void *data) -{ - struct ccc_thread_info *info = data; - - kmem_cache_free(ccc_thread_kmem, info); -} - -void *ccc_session_key_init(const struct lu_context *ctx, - struct lu_context_key *key) -{ - struct ccc_session *session; - - session = kmem_cache_zalloc(ccc_session_kmem, GFP_NOFS); - if (!session) - session = ERR_PTR(-ENOMEM); - return session; -} - -void ccc_session_key_fini(const struct lu_context *ctx, - struct lu_context_key *key, void *data) -{ - struct ccc_session *session = data; - - kmem_cache_free(ccc_session_kmem, session); -} - -struct lu_context_key ccc_key = { - .lct_tags = LCT_CL_THREAD, - .lct_init = ccc_key_init, - .lct_fini = ccc_key_fini -}; - -struct lu_context_key ccc_session_key = { - .lct_tags = LCT_SESSION, - .lct_init = ccc_session_key_init, - .lct_fini = ccc_session_key_fini -}; - -/* type constructor/destructor: ccc_type_{init,fini,start,stop}(). */ -/* LU_TYPE_INIT_FINI(ccc, &ccc_key, &ccc_session_key); */ - -int ccc_device_init(const struct lu_env *env, struct lu_device *d, - const char *name, struct lu_device *next) -{ - struct ccc_device *vdv; - int rc; - - vdv = lu2ccc_dev(d); - vdv->cdv_next = lu2cl_dev(next); - - LASSERT(d->ld_site && next->ld_type); - next->ld_site = d->ld_site; - rc = next->ld_type->ldt_ops->ldto_device_init( - env, next, next->ld_type->ldt_name, NULL); - if (rc == 0) { - lu_device_get(next); - lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init); - } - return rc; -} - -struct lu_device *ccc_device_fini(const struct lu_env *env, - struct lu_device *d) -{ - return cl2lu_dev(lu2ccc_dev(d)->cdv_next); -} - -struct lu_device *ccc_device_alloc(const struct lu_env *env, - struct lu_device_type *t, - struct lustre_cfg *cfg, - const struct lu_device_operations *luops, - const struct cl_device_operations *clops) -{ - struct ccc_device *vdv; - struct lu_device *lud; - struct cl_site *site; - int rc; - - vdv = kzalloc(sizeof(*vdv), GFP_NOFS); - if (!vdv) - return ERR_PTR(-ENOMEM); - - lud = &vdv->cdv_cl.cd_lu_dev; - cl_device_init(&vdv->cdv_cl, t); - ccc2lu_dev(vdv)->ld_ops = luops; - vdv->cdv_cl.cd_ops = clops; - - site = kzalloc(sizeof(*site), GFP_NOFS); - if (site) { - rc = cl_site_init(site, &vdv->cdv_cl); - if (rc == 0) - rc = lu_site_init_finish(&site->cs_lu); - else { - LASSERT(!lud->ld_site); - CERROR("Cannot init lu_site, rc %d.\n", rc); - kfree(site); - } - } else - rc = -ENOMEM; - if (rc != 0) { - ccc_device_free(env, lud); - lud = ERR_PTR(rc); - } - return lud; -} - -struct lu_device *ccc_device_free(const struct lu_env *env, - struct lu_device *d) -{ - struct ccc_device *vdv = lu2ccc_dev(d); - struct cl_site *site = lu2cl_site(d->ld_site); - struct lu_device *next = cl2lu_dev(vdv->cdv_next); - - if (d->ld_site) { - cl_site_fini(site); - kfree(site); - } - cl_device_fini(lu2cl_dev(d)); - kfree(vdv); - return next; -} - -int ccc_req_init(const struct lu_env *env, struct cl_device *dev, - struct cl_req *req) -{ - struct ccc_req *vrq; - int result; - - vrq = kmem_cache_zalloc(ccc_req_kmem, GFP_NOFS); - if (vrq) { - cl_req_slice_add(req, &vrq->crq_cl, dev, &ccc_req_ops); - result = 0; - } else - result = -ENOMEM; - return result; -} - -/** - * An `emergency' environment used by ccc_inode_fini() when cl_env_get() - * fails. Access to this environment is serialized by ccc_inode_fini_guard - * mutex. - */ -static struct lu_env *ccc_inode_fini_env; - -/** - * A mutex serializing calls to slp_inode_fini() under extreme memory - * pressure, when environments cannot be allocated. - */ -static DEFINE_MUTEX(ccc_inode_fini_guard); -static int dummy_refcheck; - -int ccc_global_init(struct lu_device_type *device_type) -{ - int result; - - result = lu_kmem_init(ccc_caches); - if (result) - return result; - - result = lu_device_type_init(device_type); - if (result) - goto out_kmem; - - ccc_inode_fini_env = cl_env_alloc(&dummy_refcheck, - LCT_REMEMBER|LCT_NOREF); - if (IS_ERR(ccc_inode_fini_env)) { - result = PTR_ERR(ccc_inode_fini_env); - goto out_device; - } - - ccc_inode_fini_env->le_ctx.lc_cookie = 0x4; - return 0; -out_device: - lu_device_type_fini(device_type); -out_kmem: - lu_kmem_fini(ccc_caches); - return result; -} - -void ccc_global_fini(struct lu_device_type *device_type) -{ - if (ccc_inode_fini_env) { - cl_env_put(ccc_inode_fini_env, &dummy_refcheck); - ccc_inode_fini_env = NULL; - } - lu_device_type_fini(device_type); - lu_kmem_fini(ccc_caches); -} - -/***************************************************************************** - * - * Object operations. - * - */ - -struct lu_object *ccc_object_alloc(const struct lu_env *env, - const struct lu_object_header *unused, - struct lu_device *dev, - const struct cl_object_operations *clops, - const struct lu_object_operations *luops) -{ - struct ccc_object *vob; - struct lu_object *obj; - - vob = kmem_cache_zalloc(ccc_object_kmem, GFP_NOFS); - if (vob) { - struct cl_object_header *hdr; - - obj = ccc2lu(vob); - hdr = &vob->cob_header; - cl_object_header_init(hdr); - lu_object_init(obj, &hdr->coh_lu, dev); - lu_object_add_top(&hdr->coh_lu, obj); - - vob->cob_cl.co_ops = clops; - obj->lo_ops = luops; - } else - obj = NULL; - return obj; -} - -int ccc_object_init0(const struct lu_env *env, - struct ccc_object *vob, - const struct cl_object_conf *conf) -{ - vob->cob_inode = conf->coc_inode; - vob->cob_transient_pages = 0; - cl_object_page_init(&vob->cob_cl, sizeof(struct ccc_page)); - return 0; -} - -int ccc_object_init(const struct lu_env *env, struct lu_object *obj, - const struct lu_object_conf *conf) -{ - struct ccc_device *dev = lu2ccc_dev(obj->lo_dev); - struct ccc_object *vob = lu2ccc(obj); - struct lu_object *below; - struct lu_device *under; - int result; - - under = &dev->cdv_next->cd_lu_dev; - below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under); - if (below) { - const struct cl_object_conf *cconf; - - cconf = lu2cl_conf(conf); - INIT_LIST_HEAD(&vob->cob_pending_list); - lu_object_add(obj, below); - result = ccc_object_init0(env, vob, cconf); - } else - result = -ENOMEM; - return result; -} - -void ccc_object_free(const struct lu_env *env, struct lu_object *obj) -{ - struct ccc_object *vob = lu2ccc(obj); - - lu_object_fini(obj); - lu_object_header_fini(obj->lo_header); - kmem_cache_free(ccc_object_kmem, vob); -} - -int ccc_lock_init(const struct lu_env *env, - struct cl_object *obj, struct cl_lock *lock, - const struct cl_io *unused, - const struct cl_lock_operations *lkops) -{ - struct ccc_lock *clk; - int result; - - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); - - clk = kmem_cache_zalloc(ccc_lock_kmem, GFP_NOFS); - if (clk) { - cl_lock_slice_add(lock, &clk->clk_cl, obj, lkops); - result = 0; - } else - result = -ENOMEM; - return result; -} - -int ccc_object_glimpse(const struct lu_env *env, - const struct cl_object *obj, struct ost_lvb *lvb) -{ - struct inode *inode = ccc_object_inode(obj); - - lvb->lvb_mtime = cl_inode_mtime(inode); - lvb->lvb_atime = cl_inode_atime(inode); - lvb->lvb_ctime = cl_inode_ctime(inode); - /* - * LU-417: Add dirty pages block count lest i_blocks reports 0, some - * "cp" or "tar" on remote node may think it's a completely sparse file - * and skip it. - */ - if (lvb->lvb_size > 0 && lvb->lvb_blocks == 0) - lvb->lvb_blocks = dirty_cnt(inode); - return 0; -} - -static void ccc_object_size_lock(struct cl_object *obj) -{ - struct inode *inode = ccc_object_inode(obj); - - ll_inode_size_lock(inode); - cl_object_attr_lock(obj); -} - -static void ccc_object_size_unlock(struct cl_object *obj) -{ - struct inode *inode = ccc_object_inode(obj); - - cl_object_attr_unlock(obj); - ll_inode_size_unlock(inode); -} - -/***************************************************************************** - * - * Page operations. - * - */ - -struct page *ccc_page_vmpage(const struct lu_env *env, - const struct cl_page_slice *slice) -{ - return cl2vm_page(slice); -} - -int ccc_page_is_under_lock(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *io) -{ - struct ccc_io *cio = ccc_env_io(env); - struct cl_lock_descr *desc = &ccc_env_info(env)->cti_descr; - struct cl_page *page = slice->cpl_page; - - int result; - - if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE || - io->ci_type == CIT_FAULT) { - if (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED) - result = -EBUSY; - else { - desc->cld_start = page->cp_index; - desc->cld_end = page->cp_index; - desc->cld_obj = page->cp_obj; - desc->cld_mode = CLM_READ; - result = cl_queue_match(&io->ci_lockset.cls_done, - desc) ? -EBUSY : 0; - } - } else - result = 0; - return result; -} - -int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice) -{ - /* - * Cached read? - */ - LBUG(); - return 0; -} - -int ccc_transient_page_prep(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *unused) -{ - /* transient page should always be sent. */ - return 0; -} - -/***************************************************************************** - * - * Lock operations. - * - */ - -void ccc_lock_delete(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); -} - -void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice) -{ - struct ccc_lock *clk = cl2ccc_lock(slice); - - kmem_cache_free(ccc_lock_kmem, clk); -} - -int ccc_lock_enqueue(const struct lu_env *env, - const struct cl_lock_slice *slice, - struct cl_io *unused, __u32 enqflags) -{ - CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); - return 0; -} - -int ccc_lock_use(const struct lu_env *env, const struct cl_lock_slice *slice) -{ - CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); - return 0; -} - -int ccc_lock_unuse(const struct lu_env *env, const struct cl_lock_slice *slice) -{ - CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); - return 0; -} - -int ccc_lock_wait(const struct lu_env *env, const struct cl_lock_slice *slice) -{ - CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); - return 0; -} - -/** - * Implementation of cl_lock_operations::clo_fits_into() methods for ccc - * layer. This function is executed every time io finds an existing lock in - * the lock cache while creating new lock. This function has to decide whether - * cached lock "fits" into io. - * - * \param slice lock to be checked - * \param io IO that wants a lock. - * - * \see lov_lock_fits_into(). - */ -int ccc_lock_fits_into(const struct lu_env *env, - const struct cl_lock_slice *slice, - const struct cl_lock_descr *need, - const struct cl_io *io) -{ - const struct cl_lock *lock = slice->cls_lock; - const struct cl_lock_descr *descr = &lock->cll_descr; - const struct ccc_io *cio = ccc_env_io(env); - int result; - - /* - * Work around DLM peculiarity: it assumes that glimpse - * (LDLM_FL_HAS_INTENT) lock is always LCK_PR, and returns reads lock - * when asked for LCK_PW lock with LDLM_FL_HAS_INTENT flag set. Make - * sure that glimpse doesn't get CLM_WRITE top-lock, so that it - * doesn't enqueue CLM_WRITE sub-locks. - */ - if (cio->cui_glimpse) - result = descr->cld_mode != CLM_WRITE; - - /* - * Also, don't match incomplete write locks for read, otherwise read - * would enqueue missing sub-locks in the write mode. - */ - else if (need->cld_mode != descr->cld_mode) - result = lock->cll_state >= CLS_ENQUEUED; - else - result = 1; - return result; -} - -/** - * Implements cl_lock_operations::clo_state() method for ccc layer, invoked - * whenever lock state changes. Transfers object attributes, that might be - * updated as a result of lock acquiring into inode. - */ -void ccc_lock_state(const struct lu_env *env, - const struct cl_lock_slice *slice, - enum cl_lock_state state) -{ - struct cl_lock *lock = slice->cls_lock; - - /* - * Refresh inode attributes when the lock is moving into CLS_HELD - * state, and only when this is a result of real enqueue, rather than - * of finding lock in the cache. - */ - if (state == CLS_HELD && lock->cll_state < CLS_HELD) { - struct cl_object *obj; - struct inode *inode; - - obj = slice->cls_obj; - inode = ccc_object_inode(obj); - - /* vmtruncate() sets the i_size - * under both a DLM lock and the - * ll_inode_size_lock(). If we don't get the - * ll_inode_size_lock() here we can match the DLM lock and - * reset i_size. generic_file_write can then trust the - * stale i_size when doing appending writes and effectively - * cancel the result of the truncate. Getting the - * ll_inode_size_lock() after the enqueue maintains the DLM - * -> ll_inode_size_lock() acquiring order. - */ - if (lock->cll_descr.cld_start == 0 && - lock->cll_descr.cld_end == CL_PAGE_EOF) - cl_merge_lvb(env, inode); - } -} - -/***************************************************************************** - * - * io operations. - * - */ - -int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io, - __u32 enqflags, enum cl_lock_mode mode, - pgoff_t start, pgoff_t end) -{ - struct ccc_io *cio = ccc_env_io(env); - struct cl_lock_descr *descr = &cio->cui_link.cill_descr; - struct cl_object *obj = io->ci_obj; - - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); - - CDEBUG(D_VFSTRACE, "lock: %d [%lu, %lu]\n", mode, start, end); - - memset(&cio->cui_link, 0, sizeof(cio->cui_link)); - - if (cio->cui_fd && (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { - descr->cld_mode = CLM_GROUP; - descr->cld_gid = cio->cui_fd->fd_grouplock.cg_gid; - } else { - descr->cld_mode = mode; - } - descr->cld_obj = obj; - descr->cld_start = start; - descr->cld_end = end; - descr->cld_enq_flags = enqflags; - - cl_io_lock_add(env, io, &cio->cui_link); - return 0; -} - -void ccc_io_update_iov(const struct lu_env *env, - struct ccc_io *cio, struct cl_io *io) -{ - size_t size = io->u.ci_rw.crw_count; - - if (!cl_is_normalio(env, io) || !cio->cui_iter) - return; - - iov_iter_truncate(cio->cui_iter, size); -} - -int ccc_io_one_lock(const struct lu_env *env, struct cl_io *io, - __u32 enqflags, enum cl_lock_mode mode, - loff_t start, loff_t end) -{ - struct cl_object *obj = io->ci_obj; - - return ccc_io_one_lock_index(env, io, enqflags, mode, - cl_index(obj, start), cl_index(obj, end)); -} - -void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios) -{ - CLOBINVRNT(env, ios->cis_io->ci_obj, - ccc_object_invariant(ios->cis_io->ci_obj)); -} - -void ccc_io_advance(const struct lu_env *env, - const struct cl_io_slice *ios, - size_t nob) -{ - struct ccc_io *cio = cl2ccc_io(env, ios); - struct cl_io *io = ios->cis_io; - struct cl_object *obj = ios->cis_io->ci_obj; - - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); - - if (!cl_is_normalio(env, io)) - return; - - iov_iter_reexpand(cio->cui_iter, cio->cui_tot_count -= nob); -} - -/** - * Helper function that if necessary adjusts file size (inode->i_size), when - * position at the offset \a pos is accessed. File size can be arbitrary stale - * on a Lustre client, but client at least knows KMS. If accessed area is - * inside [0, KMS], set file size to KMS, otherwise glimpse file size. - * - * Locking: cl_isize_lock is used to serialize changes to inode size and to - * protect consistency between inode size and cl_object - * attributes. cl_object_size_lock() protects consistency between cl_attr's of - * top-object and sub-objects. - */ -int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, - struct cl_io *io, loff_t start, size_t count, int *exceed) -{ - struct cl_attr *attr = ccc_env_thread_attr(env); - struct inode *inode = ccc_object_inode(obj); - loff_t pos = start + count - 1; - loff_t kms; - int result; - - /* - * Consistency guarantees: following possibilities exist for the - * relation between region being accessed and real file size at this - * moment: - * - * (A): the region is completely inside of the file; - * - * (B-x): x bytes of region are inside of the file, the rest is - * outside; - * - * (C): the region is completely outside of the file. - * - * This classification is stable under DLM lock already acquired by - * the caller, because to change the class, other client has to take - * DLM lock conflicting with our lock. Also, any updates to ->i_size - * by other threads on this client are serialized by - * ll_inode_size_lock(). This guarantees that short reads are handled - * correctly in the face of concurrent writes and truncates. - */ - ccc_object_size_lock(obj); - result = cl_object_attr_get(env, obj, attr); - if (result == 0) { - kms = attr->cat_kms; - if (pos > kms) { - /* - * A glimpse is necessary to determine whether we - * return a short read (B) or some zeroes at the end - * of the buffer (C) - */ - ccc_object_size_unlock(obj); - result = cl_glimpse_lock(env, io, inode, obj, 0); - if (result == 0 && exceed) { - /* If objective page index exceed end-of-file - * page index, return directly. Do not expect - * kernel will check such case correctly. - * linux-2.6.18-128.1.1 miss to do that. - * --bug 17336 - */ - loff_t size = cl_isize_read(inode); - loff_t cur_index = start >> PAGE_CACHE_SHIFT; - loff_t size_index = (size - 1) >> - PAGE_CACHE_SHIFT; - - if ((size == 0 && cur_index != 0) || - size_index < cur_index) - *exceed = 1; - } - return result; - } - /* - * region is within kms and, hence, within real file - * size (A). We need to increase i_size to cover the - * read region so that generic_file_read() will do its - * job, but that doesn't mean the kms size is - * _correct_, it is only the _minimum_ size. If - * someone does a stat they will get the correct size - * which will always be >= the kms value here. - * b=11081 - */ - if (cl_isize_read(inode) < kms) { - cl_isize_write_nolock(inode, kms); - CDEBUG(D_VFSTRACE, - DFID" updating i_size %llu\n", - PFID(lu_object_fid(&obj->co_lu)), - (__u64)cl_isize_read(inode)); - - } - } - ccc_object_size_unlock(obj); - return result; -} - -/***************************************************************************** - * - * Transfer operations. - * - */ - -void ccc_req_completion(const struct lu_env *env, - const struct cl_req_slice *slice, int ioret) -{ - struct ccc_req *vrq; - - if (ioret > 0) - cl_stats_tally(slice->crs_dev, slice->crs_req->crq_type, ioret); - - vrq = cl2ccc_req(slice); - kmem_cache_free(ccc_req_kmem, vrq); -} - -/** - * Implementation of struct cl_req_operations::cro_attr_set() for ccc - * layer. ccc is responsible for - * - * - o_[mac]time - * - * - o_mode - * - * - o_parent_seq - * - * - o_[ug]id - * - * - o_parent_oid - * - * - o_parent_ver - * - * - o_ioepoch, - * - */ -void ccc_req_attr_set(const struct lu_env *env, - const struct cl_req_slice *slice, - const struct cl_object *obj, - struct cl_req_attr *attr, u64 flags) -{ - struct inode *inode; - struct obdo *oa; - u32 valid_flags; - - oa = attr->cra_oa; - inode = ccc_object_inode(obj); - valid_flags = OBD_MD_FLTYPE; - - if (slice->crs_req->crq_type == CRT_WRITE) { - if (flags & OBD_MD_FLEPOCH) { - oa->o_valid |= OBD_MD_FLEPOCH; - oa->o_ioepoch = cl_i2info(inode)->lli_ioepoch; - valid_flags |= OBD_MD_FLMTIME | OBD_MD_FLCTIME | - OBD_MD_FLUID | OBD_MD_FLGID; - } - } - obdo_from_inode(oa, inode, valid_flags & flags); - obdo_set_parent_fid(oa, &cl_i2info(inode)->lli_fid); - memcpy(attr->cra_jobid, cl_i2info(inode)->lli_jobid, - JOBSTATS_JOBID_SIZE); -} - -static const struct cl_req_operations ccc_req_ops = { - .cro_attr_set = ccc_req_attr_set, - .cro_completion = ccc_req_completion -}; - -int cl_setattr_ost(struct inode *inode, const struct iattr *attr) -{ - struct lu_env *env; - struct cl_io *io; - int result; - int refcheck; - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - return PTR_ERR(env); - - io = ccc_env_thread_io(env); - io->ci_obj = cl_i2info(inode)->lli_clob; - - io->u.ci_setattr.sa_attr.lvb_atime = LTIME_S(attr->ia_atime); - io->u.ci_setattr.sa_attr.lvb_mtime = LTIME_S(attr->ia_mtime); - io->u.ci_setattr.sa_attr.lvb_ctime = LTIME_S(attr->ia_ctime); - io->u.ci_setattr.sa_attr.lvb_size = attr->ia_size; - io->u.ci_setattr.sa_valid = attr->ia_valid; - -again: - if (cl_io_init(env, io, CIT_SETATTR, io->ci_obj) == 0) { - struct ccc_io *cio = ccc_env_io(env); - - if (attr->ia_valid & ATTR_FILE) - /* populate the file descriptor for ftruncate to honor - * group lock - see LU-787 - */ - cio->cui_fd = cl_iattr2fd(inode, attr); - - result = cl_io_loop(env, io); - } else { - result = io->ci_result; - } - cl_io_fini(env, io); - if (unlikely(io->ci_need_restart)) - goto again; - /* HSM import case: file is released, cannot be restored - * no need to fail except if restore registration failed - * with -ENODATA - */ - if (result == -ENODATA && io->ci_restore_needed && - io->ci_result != -ENODATA) - result = 0; - cl_env_put(env, &refcheck); - return result; -} - -/***************************************************************************** - * - * Type conversions. - * - */ - -struct lu_device *ccc2lu_dev(struct ccc_device *vdv) -{ - return &vdv->cdv_cl.cd_lu_dev; -} - -struct ccc_device *lu2ccc_dev(const struct lu_device *d) -{ - return container_of0(d, struct ccc_device, cdv_cl.cd_lu_dev); -} - -struct ccc_device *cl2ccc_dev(const struct cl_device *d) -{ - return container_of0(d, struct ccc_device, cdv_cl); -} - -struct lu_object *ccc2lu(struct ccc_object *vob) -{ - return &vob->cob_cl.co_lu; -} - -struct ccc_object *lu2ccc(const struct lu_object *obj) -{ - return container_of0(obj, struct ccc_object, cob_cl.co_lu); -} - -struct ccc_object *cl2ccc(const struct cl_object *obj) -{ - return container_of0(obj, struct ccc_object, cob_cl); -} - -struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice) -{ - return container_of(slice, struct ccc_lock, clk_cl); -} - -struct ccc_io *cl2ccc_io(const struct lu_env *env, - const struct cl_io_slice *slice) -{ - struct ccc_io *cio; - - cio = container_of(slice, struct ccc_io, cui_cl); - LASSERT(cio == ccc_env_io(env)); - return cio; -} - -struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice) -{ - return container_of0(slice, struct ccc_req, crq_cl); -} - -struct page *cl2vm_page(const struct cl_page_slice *slice) -{ - return cl2ccc_page(slice)->cpg_page; -} - -/***************************************************************************** - * - * Accessors. - * - */ -int ccc_object_invariant(const struct cl_object *obj) -{ - struct inode *inode = ccc_object_inode(obj); - struct cl_inode_info *lli = cl_i2info(inode); - - return (S_ISREG(cl_inode_mode(inode)) || - /* i_mode of unlinked inode is zeroed. */ - cl_inode_mode(inode) == 0) && lli->lli_clob == obj; -} - -struct inode *ccc_object_inode(const struct cl_object *obj) -{ - return cl2ccc(obj)->cob_inode; -} - -/** - * Initialize or update CLIO structures for regular files when new - * meta-data arrives from the server. - * - * \param inode regular file inode - * \param md new file metadata from MDS - * - allocates cl_object if necessary, - * - updated layout, if object was already here. - */ -int cl_file_inode_init(struct inode *inode, struct lustre_md *md) -{ - struct lu_env *env; - struct cl_inode_info *lli; - struct cl_object *clob; - struct lu_site *site; - struct lu_fid *fid; - struct cl_object_conf conf = { - .coc_inode = inode, - .u = { - .coc_md = md - } - }; - int result = 0; - int refcheck; - - LASSERT(md->body->valid & OBD_MD_FLID); - LASSERT(S_ISREG(cl_inode_mode(inode))); - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - return PTR_ERR(env); - - site = cl_i2sbi(inode)->ll_site; - lli = cl_i2info(inode); - fid = &lli->lli_fid; - LASSERT(fid_is_sane(fid)); - - if (!lli->lli_clob) { - /* clob is slave of inode, empty lli_clob means for new inode, - * there is no clob in cache with the given fid, so it is - * unnecessary to perform lookup-alloc-lookup-insert, just - * alloc and insert directly. - */ - LASSERT(inode->i_state & I_NEW); - conf.coc_lu.loc_flags = LOC_F_NEW; - clob = cl_object_find(env, lu2cl_dev(site->ls_top_dev), - fid, &conf); - if (!IS_ERR(clob)) { - /* - * No locking is necessary, as new inode is - * locked by I_NEW bit. - */ - lli->lli_clob = clob; - lli->lli_has_smd = lsm_has_objects(md->lsm); - lu_object_ref_add(&clob->co_lu, "inode", inode); - } else - result = PTR_ERR(clob); - } else { - result = cl_conf_set(env, lli->lli_clob, &conf); - } - - cl_env_put(env, &refcheck); - - if (result != 0) - CERROR("Failure to initialize cl object "DFID": %d\n", - PFID(fid), result); - return result; -} - -/** - * Wait for others drop their references of the object at first, then we drop - * the last one, which will lead to the object be destroyed immediately. - * Must be called after cl_object_kill() against this object. - * - * The reason we want to do this is: destroying top object will wait for sub - * objects being destroyed first, so we can't let bottom layer (e.g. from ASTs) - * to initiate top object destroying which may deadlock. See bz22520. - */ -static void cl_object_put_last(struct lu_env *env, struct cl_object *obj) -{ - struct lu_object_header *header = obj->co_lu.lo_header; - wait_queue_t waiter; - - if (unlikely(atomic_read(&header->loh_ref) != 1)) { - struct lu_site *site = obj->co_lu.lo_dev->ld_site; - struct lu_site_bkt_data *bkt; - - bkt = lu_site_bkt_from_fid(site, &header->loh_fid); - - init_waitqueue_entry(&waiter, current); - add_wait_queue(&bkt->lsb_marche_funebre, &waiter); - - while (1) { - set_current_state(TASK_UNINTERRUPTIBLE); - if (atomic_read(&header->loh_ref) == 1) - break; - schedule(); - } - - set_current_state(TASK_RUNNING); - remove_wait_queue(&bkt->lsb_marche_funebre, &waiter); - } - - cl_object_put(env, obj); -} - -void cl_inode_fini(struct inode *inode) -{ - struct lu_env *env; - struct cl_inode_info *lli = cl_i2info(inode); - struct cl_object *clob = lli->lli_clob; - int refcheck; - int emergency; - - if (clob) { - void *cookie; - - cookie = cl_env_reenter(); - env = cl_env_get(&refcheck); - emergency = IS_ERR(env); - if (emergency) { - mutex_lock(&ccc_inode_fini_guard); - LASSERT(ccc_inode_fini_env); - cl_env_implant(ccc_inode_fini_env, &refcheck); - env = ccc_inode_fini_env; - } - /* - * cl_object cache is a slave to inode cache (which, in turn - * is a slave to dentry cache), don't keep cl_object in memory - * when its master is evicted. - */ - cl_object_kill(env, clob); - lu_object_ref_del(&clob->co_lu, "inode", inode); - cl_object_put_last(env, clob); - lli->lli_clob = NULL; - if (emergency) { - cl_env_unplant(ccc_inode_fini_env, &refcheck); - mutex_unlock(&ccc_inode_fini_guard); - } else - cl_env_put(env, &refcheck); - cl_env_reexit(cookie); - } -} - -/** - * return IF_* type for given lu_dirent entry. - * IF_* flag shld be converted to particular OS file type in - * platform llite module. - */ -__u16 ll_dirent_type_get(struct lu_dirent *ent) -{ - __u16 type = 0; - struct luda_type *lt; - int len = 0; - - if (le32_to_cpu(ent->lde_attrs) & LUDA_TYPE) { - const unsigned align = sizeof(struct luda_type) - 1; - - len = le16_to_cpu(ent->lde_namelen); - len = (len + align) & ~align; - lt = (void *)ent->lde_name + len; - type = IFTODT(le16_to_cpu(lt->lt_type)); - } - return type; -} - -/** - * build inode number from passed @fid - */ -__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32) -{ - if (BITS_PER_LONG == 32 || api32) - return fid_flatten32(fid); - else - return fid_flatten(fid); -} - -/** - * build inode generation from passed @fid. If our FID overflows the 32-bit - * inode number then return a non-zero generation to distinguish them. - */ -__u32 cl_fid_build_gen(const struct lu_fid *fid) -{ - __u32 gen; - - if (fid_is_igif(fid)) { - gen = lu_igif_gen(fid); - return gen; - } - - gen = fid_flatten(fid) >> 32; - return gen; -} - -/* lsm is unreliable after hsm implementation as layout can be changed at - * any time. This is only to support old, non-clio-ized interfaces. It will - * cause deadlock if clio operations are called with this extra layout refcount - * because in case the layout changed during the IO, ll_layout_refresh() will - * have to wait for the refcount to become zero to destroy the older layout. - * - * Notice that the lsm returned by this function may not be valid unless called - * inside layout lock - MDS_INODELOCK_LAYOUT. - */ -struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode) -{ - return lov_lsm_get(cl_i2info(inode)->lli_clob); -} - -inline void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm) -{ - lov_lsm_put(cl_i2info(inode)->lli_clob, lsm); -} diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_misc.c b/drivers/staging/lustre/lustre/lclient/lcommon_misc.c deleted file mode 100644 index d80bcedd..0000000 --- a/drivers/staging/lustre/lustre/lclient/lcommon_misc.c +++ /dev/null @@ -1,200 +0,0 @@ -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. - * - * GPL HEADER END - */ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * cl code shared between vvp and liblustre (and other Lustre clients in the - * future). - * - */ -#include "../include/obd_class.h" -#include "../include/obd_support.h" -#include "../include/obd.h" -#include "../include/cl_object.h" -#include "../include/lclient.h" - -#include "../include/lustre_lite.h" - -/* Initialize the default and maximum LOV EA and cookie sizes. This allows - * us to make MDS RPCs with large enough reply buffers to hold the - * maximum-sized (= maximum striped) EA and cookie without having to - * calculate this (via a call into the LOV + OSCs) each time we make an RPC. - */ -int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp) -{ - struct lov_stripe_md lsm = { .lsm_magic = LOV_MAGIC_V3 }; - __u32 valsize = sizeof(struct lov_desc); - int rc, easize, def_easize, cookiesize; - struct lov_desc desc; - __u16 stripes, def_stripes; - - rc = obd_get_info(NULL, dt_exp, sizeof(KEY_LOVDESC), KEY_LOVDESC, - &valsize, &desc, NULL); - if (rc) - return rc; - - stripes = min_t(__u32, desc.ld_tgt_count, LOV_MAX_STRIPE_COUNT); - lsm.lsm_stripe_count = stripes; - easize = obd_size_diskmd(dt_exp, &lsm); - - def_stripes = min_t(__u32, desc.ld_default_stripe_count, - LOV_MAX_STRIPE_COUNT); - lsm.lsm_stripe_count = def_stripes; - def_easize = obd_size_diskmd(dt_exp, &lsm); - - cookiesize = stripes * sizeof(struct llog_cookie); - - /* default cookiesize is 0 because from 2.4 server doesn't send - * llog cookies to client. - */ - CDEBUG(D_HA, - "updating def/max_easize: %d/%d def/max_cookiesize: 0/%d\n", - def_easize, easize, cookiesize); - - rc = md_init_ea_size(md_exp, easize, def_easize, cookiesize, 0); - return rc; -} - -/** - * This function is used as an upcall-callback hooked by liblustre and llite - * clients into obd_notify() listeners chain to handle notifications about - * change of import connect_flags. See llu_fsswop_mount() and - * lustre_common_fill_super(). - */ -int cl_ocd_update(struct obd_device *host, - struct obd_device *watched, - enum obd_notify_event ev, void *owner, void *data) -{ - struct lustre_client_ocd *lco; - struct client_obd *cli; - __u64 flags; - int result; - - if (!strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME)) { - cli = &watched->u.cli; - lco = owner; - flags = cli->cl_import->imp_connect_data.ocd_connect_flags; - CDEBUG(D_SUPER, "Changing connect_flags: %#llx -> %#llx\n", - lco->lco_flags, flags); - mutex_lock(&lco->lco_lock); - lco->lco_flags &= flags; - /* for each osc event update ea size */ - if (lco->lco_dt_exp) - cl_init_ea_size(lco->lco_md_exp, lco->lco_dt_exp); - - mutex_unlock(&lco->lco_lock); - result = 0; - } else { - CERROR("unexpected notification from %s %s!\n", - watched->obd_type->typ_name, - watched->obd_name); - result = -EINVAL; - } - return result; -} - -#define GROUPLOCK_SCOPE "grouplock" - -int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, - struct ccc_grouplock *cg) -{ - struct lu_env *env; - struct cl_io *io; - struct cl_lock *lock; - struct cl_lock_descr *descr; - __u32 enqflags; - int refcheck; - int rc; - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - return PTR_ERR(env); - - io = ccc_env_thread_io(env); - io->ci_obj = obj; - io->ci_ignore_layout = 1; - - rc = cl_io_init(env, io, CIT_MISC, io->ci_obj); - if (rc) { - /* Does not make sense to take GL for released layout */ - if (rc > 0) - rc = -ENOTSUPP; - cl_env_put(env, &refcheck); - return rc; - } - - descr = &ccc_env_info(env)->cti_descr; - descr->cld_obj = obj; - descr->cld_start = 0; - descr->cld_end = CL_PAGE_EOF; - descr->cld_gid = gid; - descr->cld_mode = CLM_GROUP; - - enqflags = CEF_MUST | (nonblock ? CEF_NONBLOCK : 0); - descr->cld_enq_flags = enqflags; - - lock = cl_lock_request(env, io, descr, GROUPLOCK_SCOPE, current); - if (IS_ERR(lock)) { - cl_io_fini(env, io); - cl_env_put(env, &refcheck); - return PTR_ERR(lock); - } - - cg->cg_env = cl_env_get(&refcheck); - cg->cg_io = io; - cg->cg_lock = lock; - cg->cg_gid = gid; - LASSERT(cg->cg_env == env); - - cl_env_unplant(env, &refcheck); - return 0; -} - -void cl_put_grouplock(struct ccc_grouplock *cg) -{ - struct lu_env *env = cg->cg_env; - struct cl_io *io = cg->cg_io; - struct cl_lock *lock = cg->cg_lock; - int refcheck; - - LASSERT(cg->cg_env); - LASSERT(cg->cg_gid); - - cl_env_implant(env, &refcheck); - cl_env_put(env, &refcheck); - - cl_unuse(env, lock); - cl_lock_release(env, lock, GROUPLOCK_SCOPE, current); - cl_io_fini(env, io); - cl_env_put(env, NULL); -} diff --git a/drivers/staging/lustre/lustre/llite/Makefile b/drivers/staging/lustre/lustre/llite/Makefile index 9ac29e7..24085e2 100644 --- a/drivers/staging/lustre/lustre/llite/Makefile +++ b/drivers/staging/lustre/lustre/llite/Makefile @@ -4,7 +4,7 @@ lustre-y := dcache.o dir.o file.o llite_close.o llite_lib.o llite_nfs.o \ rw.o namei.o symlink.o llite_mmap.o \ xattr.o xattr_cache.o remote_perm.o llite_rmtacl.o \ rw26.o super25.o statahead.o \ - ../lclient/glimpse.o ../lclient/lcommon_cl.o ../lclient/lcommon_misc.o \ + glimpse.o lcommon_cl.o lcommon_misc.o \ vvp_dev.o vvp_page.o vvp_lock.o vvp_io.o vvp_object.o lproc_llite.o llite_lloop-y := lloop.o diff --git a/drivers/staging/lustre/lustre/llite/glimpse.c b/drivers/staging/lustre/lustre/llite/glimpse.c new file mode 100644 index 0000000..f235f35 --- /dev/null +++ b/drivers/staging/lustre/lustre/llite/glimpse.c @@ -0,0 +1,273 @@ +/* + * GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. + * + * Copyright (c) 2011, 2012, Intel Corporation. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. + * + * glimpse code shared between vvp and liblustre (and other Lustre clients in + * the future). + * + * Author: Nikita Danilov + * Author: Oleg Drokin + */ + +#include "../../include/linux/libcfs/libcfs.h" +#include "../include/obd_class.h" +#include "../include/obd_support.h" +#include "../include/obd.h" + +#include "../include/lustre_dlm.h" +#include "../include/lustre_lite.h" +#include "../include/lustre_mdc.h" +#include +#include + +#include "../include/cl_object.h" +#include "../include/lclient.h" +#include "../llite/llite_internal.h" + +static const struct cl_lock_descr whole_file = { + .cld_start = 0, + .cld_end = CL_PAGE_EOF, + .cld_mode = CLM_READ +}; + +/* + * Check whether file has possible unwriten pages. + * + * \retval 1 file is mmap-ed or has dirty pages + * 0 otherwise + */ +blkcnt_t dirty_cnt(struct inode *inode) +{ + blkcnt_t cnt = 0; + struct ccc_object *vob = cl_inode2ccc(inode); + void *results[1]; + + if (inode->i_mapping) + cnt += radix_tree_gang_lookup_tag(&inode->i_mapping->page_tree, + results, 0, 1, + PAGECACHE_TAG_DIRTY); + if (cnt == 0 && atomic_read(&vob->cob_mmap_cnt) > 0) + cnt = 1; + + return (cnt > 0) ? 1 : 0; +} + +int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, + struct inode *inode, struct cl_object *clob, int agl) +{ + struct cl_lock_descr *descr = &ccc_env_info(env)->cti_descr; + struct cl_inode_info *lli = cl_i2info(inode); + const struct lu_fid *fid = lu_object_fid(&clob->co_lu); + struct ccc_io *cio = ccc_env_io(env); + struct cl_lock *lock; + int result; + + result = 0; + if (!(lli->lli_flags & LLIF_MDS_SIZE_LOCK)) { + CDEBUG(D_DLMTRACE, "Glimpsing inode " DFID "\n", PFID(fid)); + if (lli->lli_has_smd) { + /* NOTE: this looks like DLM lock request, but it may + * not be one. Due to CEF_ASYNC flag (translated + * to LDLM_FL_HAS_INTENT by osc), this is + * glimpse request, that won't revoke any + * conflicting DLM locks held. Instead, + * ll_glimpse_callback() will be called on each + * client holding a DLM lock against this file, + * and resulting size will be returned for each + * stripe. DLM lock on [0, EOF] is acquired only + * if there were no conflicting locks. If there + * were conflicting locks, enqueuing or waiting + * fails with -ENAVAIL, but valid inode + * attributes are returned anyway. + */ + *descr = whole_file; + descr->cld_obj = clob; + descr->cld_mode = CLM_PHANTOM; + descr->cld_enq_flags = CEF_ASYNC | CEF_MUST; + if (agl) + descr->cld_enq_flags |= CEF_AGL; + cio->cui_glimpse = 1; + /* + * CEF_ASYNC is used because glimpse sub-locks cannot + * deadlock (because they never conflict with other + * locks) and, hence, can be enqueued out-of-order. + * + * CEF_MUST protects glimpse lock from conversion into + * a lockless mode. + */ + lock = cl_lock_request(env, io, descr, "glimpse", + current); + cio->cui_glimpse = 0; + + if (!lock) + return 0; + + if (IS_ERR(lock)) + return PTR_ERR(lock); + + LASSERT(agl == 0); + result = cl_wait(env, lock); + if (result == 0) { + cl_merge_lvb(env, inode); + if (cl_isize_read(inode) > 0 && + inode->i_blocks == 0) { + /* + * LU-417: Add dirty pages block count + * lest i_blocks reports 0, some "cp" or + * "tar" may think it's a completely + * sparse file and skip it. + */ + inode->i_blocks = dirty_cnt(inode); + } + cl_unuse(env, lock); + } + cl_lock_release(env, lock, "glimpse", current); + } else { + CDEBUG(D_DLMTRACE, "No objects for inode\n"); + cl_merge_lvb(env, inode); + } + } + + return result; +} + +static int cl_io_get(struct inode *inode, struct lu_env **envout, + struct cl_io **ioout, int *refcheck) +{ + struct lu_env *env; + struct cl_io *io; + struct cl_inode_info *lli = cl_i2info(inode); + struct cl_object *clob = lli->lli_clob; + int result; + + if (S_ISREG(cl_inode_mode(inode))) { + env = cl_env_get(refcheck); + if (!IS_ERR(env)) { + io = ccc_env_thread_io(env); + io->ci_obj = clob; + *envout = env; + *ioout = io; + result = 1; + } else { + result = PTR_ERR(env); + } + } else { + result = 0; + } + return result; +} + +int cl_glimpse_size0(struct inode *inode, int agl) +{ + /* + * We don't need ast_flags argument to cl_glimpse_size(), because + * osc_lock_enqueue() takes care of the possible deadlock that said + * argument was introduced to avoid. + */ + /* + * XXX but note that ll_file_seek() passes LDLM_FL_BLOCK_NOWAIT to + * cl_glimpse_size(), which doesn't make sense: glimpse locks are not + * blocking anyway. + */ + struct lu_env *env = NULL; + struct cl_io *io = NULL; + int result; + int refcheck; + + result = cl_io_get(inode, &env, &io, &refcheck); + if (result > 0) { +again: + io->ci_verify_layout = 1; + result = cl_io_init(env, io, CIT_MISC, io->ci_obj); + if (result > 0) + /* + * nothing to do for this io. This currently happens + * when stripe sub-object's are not yet created. + */ + result = io->ci_result; + else if (result == 0) + result = cl_glimpse_lock(env, io, inode, io->ci_obj, + agl); + + OBD_FAIL_TIMEOUT(OBD_FAIL_GLIMPSE_DELAY, 2); + cl_io_fini(env, io); + if (unlikely(io->ci_need_restart)) + goto again; + cl_env_put(env, &refcheck); + } + return result; +} + +int cl_local_size(struct inode *inode) +{ + struct lu_env *env = NULL; + struct cl_io *io = NULL; + struct ccc_thread_info *cti; + struct cl_object *clob; + struct cl_lock_descr *descr; + struct cl_lock *lock; + int result; + int refcheck; + + if (!cl_i2info(inode)->lli_has_smd) + return 0; + + result = cl_io_get(inode, &env, &io, &refcheck); + if (result <= 0) + return result; + + clob = io->ci_obj; + result = cl_io_init(env, io, CIT_MISC, clob); + if (result > 0) { + result = io->ci_result; + } else if (result == 0) { + cti = ccc_env_info(env); + descr = &cti->cti_descr; + + *descr = whole_file; + descr->cld_obj = clob; + lock = cl_lock_peek(env, io, descr, "localsize", current); + if (lock) { + cl_merge_lvb(env, inode); + cl_unuse(env, lock); + cl_lock_release(env, lock, "localsize", current); + result = 0; + } else { + result = -ENODATA; + } + } + cl_io_fini(env, io); + cl_env_put(env, &refcheck); + return result; +} diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c new file mode 100644 index 0000000..065b0f2 --- /dev/null +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -0,0 +1,1209 @@ +/* + * GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. + * + * Copyright (c) 2011, 2015, Intel Corporation. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. + * + * cl code shared between vvp and liblustre (and other Lustre clients in the + * future). + * + * Author: Nikita Danilov + */ + +#define DEBUG_SUBSYSTEM S_LLITE + +#include "../../include/linux/libcfs/libcfs.h" +# include +# include +# include +# include +# include +# include +# include + +#include "../include/obd.h" +#include "../include/obd_support.h" +#include "../include/lustre_fid.h" +#include "../include/lustre_lite.h" +#include "../include/lustre_dlm.h" +#include "../include/lustre_ver.h" +#include "../include/lustre_mdc.h" +#include "../include/cl_object.h" + +#include "../include/lclient.h" + +#include "../llite/llite_internal.h" + +static const struct cl_req_operations ccc_req_ops; + +/* + * ccc_ prefix stands for "Common Client Code". + */ + +static struct kmem_cache *ccc_lock_kmem; +static struct kmem_cache *ccc_object_kmem; +static struct kmem_cache *ccc_thread_kmem; +static struct kmem_cache *ccc_session_kmem; +static struct kmem_cache *ccc_req_kmem; + +static struct lu_kmem_descr ccc_caches[] = { + { + .ckd_cache = &ccc_lock_kmem, + .ckd_name = "ccc_lock_kmem", + .ckd_size = sizeof(struct ccc_lock) + }, + { + .ckd_cache = &ccc_object_kmem, + .ckd_name = "ccc_object_kmem", + .ckd_size = sizeof(struct ccc_object) + }, + { + .ckd_cache = &ccc_thread_kmem, + .ckd_name = "ccc_thread_kmem", + .ckd_size = sizeof(struct ccc_thread_info), + }, + { + .ckd_cache = &ccc_session_kmem, + .ckd_name = "ccc_session_kmem", + .ckd_size = sizeof(struct ccc_session) + }, + { + .ckd_cache = &ccc_req_kmem, + .ckd_name = "ccc_req_kmem", + .ckd_size = sizeof(struct ccc_req) + }, + { + .ckd_cache = NULL + } +}; + +/***************************************************************************** + * + * Vvp device and device type functions. + * + */ + +void *ccc_key_init(const struct lu_context *ctx, struct lu_context_key *key) +{ + struct ccc_thread_info *info; + + info = kmem_cache_zalloc(ccc_thread_kmem, GFP_NOFS); + if (!info) + info = ERR_PTR(-ENOMEM); + return info; +} + +void ccc_key_fini(const struct lu_context *ctx, + struct lu_context_key *key, void *data) +{ + struct ccc_thread_info *info = data; + + kmem_cache_free(ccc_thread_kmem, info); +} + +void *ccc_session_key_init(const struct lu_context *ctx, + struct lu_context_key *key) +{ + struct ccc_session *session; + + session = kmem_cache_zalloc(ccc_session_kmem, GFP_NOFS); + if (!session) + session = ERR_PTR(-ENOMEM); + return session; +} + +void ccc_session_key_fini(const struct lu_context *ctx, + struct lu_context_key *key, void *data) +{ + struct ccc_session *session = data; + + kmem_cache_free(ccc_session_kmem, session); +} + +struct lu_context_key ccc_key = { + .lct_tags = LCT_CL_THREAD, + .lct_init = ccc_key_init, + .lct_fini = ccc_key_fini +}; + +struct lu_context_key ccc_session_key = { + .lct_tags = LCT_SESSION, + .lct_init = ccc_session_key_init, + .lct_fini = ccc_session_key_fini +}; + +/* type constructor/destructor: ccc_type_{init,fini,start,stop}(). */ +/* LU_TYPE_INIT_FINI(ccc, &ccc_key, &ccc_session_key); */ + +int ccc_device_init(const struct lu_env *env, struct lu_device *d, + const char *name, struct lu_device *next) +{ + struct ccc_device *vdv; + int rc; + + vdv = lu2ccc_dev(d); + vdv->cdv_next = lu2cl_dev(next); + + LASSERT(d->ld_site && next->ld_type); + next->ld_site = d->ld_site; + rc = next->ld_type->ldt_ops->ldto_device_init( + env, next, next->ld_type->ldt_name, NULL); + if (rc == 0) { + lu_device_get(next); + lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init); + } + return rc; +} + +struct lu_device *ccc_device_fini(const struct lu_env *env, + struct lu_device *d) +{ + return cl2lu_dev(lu2ccc_dev(d)->cdv_next); +} + +struct lu_device *ccc_device_alloc(const struct lu_env *env, + struct lu_device_type *t, + struct lustre_cfg *cfg, + const struct lu_device_operations *luops, + const struct cl_device_operations *clops) +{ + struct ccc_device *vdv; + struct lu_device *lud; + struct cl_site *site; + int rc; + + vdv = kzalloc(sizeof(*vdv), GFP_NOFS); + if (!vdv) + return ERR_PTR(-ENOMEM); + + lud = &vdv->cdv_cl.cd_lu_dev; + cl_device_init(&vdv->cdv_cl, t); + ccc2lu_dev(vdv)->ld_ops = luops; + vdv->cdv_cl.cd_ops = clops; + + site = kzalloc(sizeof(*site), GFP_NOFS); + if (site) { + rc = cl_site_init(site, &vdv->cdv_cl); + if (rc == 0) { + rc = lu_site_init_finish(&site->cs_lu); + } else { + LASSERT(!lud->ld_site); + CERROR("Cannot init lu_site, rc %d.\n", rc); + kfree(site); + } + } else { + rc = -ENOMEM; + } + if (rc != 0) { + ccc_device_free(env, lud); + lud = ERR_PTR(rc); + } + return lud; +} + +struct lu_device *ccc_device_free(const struct lu_env *env, + struct lu_device *d) +{ + struct ccc_device *vdv = lu2ccc_dev(d); + struct cl_site *site = lu2cl_site(d->ld_site); + struct lu_device *next = cl2lu_dev(vdv->cdv_next); + + if (d->ld_site) { + cl_site_fini(site); + kfree(site); + } + cl_device_fini(lu2cl_dev(d)); + kfree(vdv); + return next; +} + +int ccc_req_init(const struct lu_env *env, struct cl_device *dev, + struct cl_req *req) +{ + struct ccc_req *vrq; + int result; + + vrq = kmem_cache_zalloc(ccc_req_kmem, GFP_NOFS); + if (vrq) { + cl_req_slice_add(req, &vrq->crq_cl, dev, &ccc_req_ops); + result = 0; + } else { + result = -ENOMEM; + } + return result; +} + +/** + * An `emergency' environment used by ccc_inode_fini() when cl_env_get() + * fails. Access to this environment is serialized by ccc_inode_fini_guard + * mutex. + */ +static struct lu_env *ccc_inode_fini_env; + +/** + * A mutex serializing calls to slp_inode_fini() under extreme memory + * pressure, when environments cannot be allocated. + */ +static DEFINE_MUTEX(ccc_inode_fini_guard); +static int dummy_refcheck; + +int ccc_global_init(struct lu_device_type *device_type) +{ + int result; + + result = lu_kmem_init(ccc_caches); + if (result) + return result; + + result = lu_device_type_init(device_type); + if (result) + goto out_kmem; + + ccc_inode_fini_env = cl_env_alloc(&dummy_refcheck, + LCT_REMEMBER | LCT_NOREF); + if (IS_ERR(ccc_inode_fini_env)) { + result = PTR_ERR(ccc_inode_fini_env); + goto out_device; + } + + ccc_inode_fini_env->le_ctx.lc_cookie = 0x4; + return 0; +out_device: + lu_device_type_fini(device_type); +out_kmem: + lu_kmem_fini(ccc_caches); + return result; +} + +void ccc_global_fini(struct lu_device_type *device_type) +{ + if (ccc_inode_fini_env) { + cl_env_put(ccc_inode_fini_env, &dummy_refcheck); + ccc_inode_fini_env = NULL; + } + lu_device_type_fini(device_type); + lu_kmem_fini(ccc_caches); +} + +/***************************************************************************** + * + * Object operations. + * + */ + +struct lu_object *ccc_object_alloc(const struct lu_env *env, + const struct lu_object_header *unused, + struct lu_device *dev, + const struct cl_object_operations *clops, + const struct lu_object_operations *luops) +{ + struct ccc_object *vob; + struct lu_object *obj; + + vob = kmem_cache_zalloc(ccc_object_kmem, GFP_NOFS); + if (vob) { + struct cl_object_header *hdr; + + obj = ccc2lu(vob); + hdr = &vob->cob_header; + cl_object_header_init(hdr); + lu_object_init(obj, &hdr->coh_lu, dev); + lu_object_add_top(&hdr->coh_lu, obj); + + vob->cob_cl.co_ops = clops; + obj->lo_ops = luops; + } else { + obj = NULL; + } + return obj; +} + +int ccc_object_init0(const struct lu_env *env, + struct ccc_object *vob, + const struct cl_object_conf *conf) +{ + vob->cob_inode = conf->coc_inode; + vob->cob_transient_pages = 0; + cl_object_page_init(&vob->cob_cl, sizeof(struct ccc_page)); + return 0; +} + +int ccc_object_init(const struct lu_env *env, struct lu_object *obj, + const struct lu_object_conf *conf) +{ + struct ccc_device *dev = lu2ccc_dev(obj->lo_dev); + struct ccc_object *vob = lu2ccc(obj); + struct lu_object *below; + struct lu_device *under; + int result; + + under = &dev->cdv_next->cd_lu_dev; + below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under); + if (below) { + const struct cl_object_conf *cconf; + + cconf = lu2cl_conf(conf); + INIT_LIST_HEAD(&vob->cob_pending_list); + lu_object_add(obj, below); + result = ccc_object_init0(env, vob, cconf); + } else { + result = -ENOMEM; + } + return result; +} + +void ccc_object_free(const struct lu_env *env, struct lu_object *obj) +{ + struct ccc_object *vob = lu2ccc(obj); + + lu_object_fini(obj); + lu_object_header_fini(obj->lo_header); + kmem_cache_free(ccc_object_kmem, vob); +} + +int ccc_lock_init(const struct lu_env *env, + struct cl_object *obj, struct cl_lock *lock, + const struct cl_io *unused, + const struct cl_lock_operations *lkops) +{ + struct ccc_lock *clk; + int result; + + CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + + clk = kmem_cache_zalloc(ccc_lock_kmem, GFP_NOFS); + if (clk) { + cl_lock_slice_add(lock, &clk->clk_cl, obj, lkops); + result = 0; + } else { + result = -ENOMEM; + } + return result; +} + +int ccc_object_glimpse(const struct lu_env *env, + const struct cl_object *obj, struct ost_lvb *lvb) +{ + struct inode *inode = ccc_object_inode(obj); + + lvb->lvb_mtime = cl_inode_mtime(inode); + lvb->lvb_atime = cl_inode_atime(inode); + lvb->lvb_ctime = cl_inode_ctime(inode); + /* + * LU-417: Add dirty pages block count lest i_blocks reports 0, some + * "cp" or "tar" on remote node may think it's a completely sparse file + * and skip it. + */ + if (lvb->lvb_size > 0 && lvb->lvb_blocks == 0) + lvb->lvb_blocks = dirty_cnt(inode); + return 0; +} + +static void ccc_object_size_lock(struct cl_object *obj) +{ + struct inode *inode = ccc_object_inode(obj); + + ll_inode_size_lock(inode); + cl_object_attr_lock(obj); +} + +static void ccc_object_size_unlock(struct cl_object *obj) +{ + struct inode *inode = ccc_object_inode(obj); + + cl_object_attr_unlock(obj); + ll_inode_size_unlock(inode); +} + +/***************************************************************************** + * + * Page operations. + * + */ + +struct page *ccc_page_vmpage(const struct lu_env *env, + const struct cl_page_slice *slice) +{ + return cl2vm_page(slice); +} + +int ccc_page_is_under_lock(const struct lu_env *env, + const struct cl_page_slice *slice, + struct cl_io *io) +{ + struct ccc_io *cio = ccc_env_io(env); + struct cl_lock_descr *desc = &ccc_env_info(env)->cti_descr; + struct cl_page *page = slice->cpl_page; + + int result; + + if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE || + io->ci_type == CIT_FAULT) { + if (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED) { + result = -EBUSY; + } else { + desc->cld_start = page->cp_index; + desc->cld_end = page->cp_index; + desc->cld_obj = page->cp_obj; + desc->cld_mode = CLM_READ; + result = cl_queue_match(&io->ci_lockset.cls_done, + desc) ? -EBUSY : 0; + } + } else { + result = 0; + } + return result; +} + +int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice) +{ + /* + * Cached read? + */ + LBUG(); + return 0; +} + +int ccc_transient_page_prep(const struct lu_env *env, + const struct cl_page_slice *slice, + struct cl_io *unused) +{ + /* transient page should always be sent. */ + return 0; +} + +/***************************************************************************** + * + * Lock operations. + * + */ + +void ccc_lock_delete(const struct lu_env *env, + const struct cl_lock_slice *slice) +{ + CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); +} + +void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice) +{ + struct ccc_lock *clk = cl2ccc_lock(slice); + + kmem_cache_free(ccc_lock_kmem, clk); +} + +int ccc_lock_enqueue(const struct lu_env *env, + const struct cl_lock_slice *slice, + struct cl_io *unused, __u32 enqflags) +{ + CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); + return 0; +} + +int ccc_lock_use(const struct lu_env *env, const struct cl_lock_slice *slice) +{ + CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); + return 0; +} + +int ccc_lock_unuse(const struct lu_env *env, const struct cl_lock_slice *slice) +{ + CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); + return 0; +} + +int ccc_lock_wait(const struct lu_env *env, const struct cl_lock_slice *slice) +{ + CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); + return 0; +} + +/** + * Implementation of cl_lock_operations::clo_fits_into() methods for ccc + * layer. This function is executed every time io finds an existing lock in + * the lock cache while creating new lock. This function has to decide whether + * cached lock "fits" into io. + * + * \param slice lock to be checked + * \param io IO that wants a lock. + * + * \see lov_lock_fits_into(). + */ +int ccc_lock_fits_into(const struct lu_env *env, + const struct cl_lock_slice *slice, + const struct cl_lock_descr *need, + const struct cl_io *io) +{ + const struct cl_lock *lock = slice->cls_lock; + const struct cl_lock_descr *descr = &lock->cll_descr; + const struct ccc_io *cio = ccc_env_io(env); + int result; + + /* + * Work around DLM peculiarity: it assumes that glimpse + * (LDLM_FL_HAS_INTENT) lock is always LCK_PR, and returns reads lock + * when asked for LCK_PW lock with LDLM_FL_HAS_INTENT flag set. Make + * sure that glimpse doesn't get CLM_WRITE top-lock, so that it + * doesn't enqueue CLM_WRITE sub-locks. + */ + if (cio->cui_glimpse) + result = descr->cld_mode != CLM_WRITE; + + /* + * Also, don't match incomplete write locks for read, otherwise read + * would enqueue missing sub-locks in the write mode. + */ + else if (need->cld_mode != descr->cld_mode) + result = lock->cll_state >= CLS_ENQUEUED; + else + result = 1; + return result; +} + +/** + * Implements cl_lock_operations::clo_state() method for ccc layer, invoked + * whenever lock state changes. Transfers object attributes, that might be + * updated as a result of lock acquiring into inode. + */ +void ccc_lock_state(const struct lu_env *env, + const struct cl_lock_slice *slice, + enum cl_lock_state state) +{ + struct cl_lock *lock = slice->cls_lock; + + /* + * Refresh inode attributes when the lock is moving into CLS_HELD + * state, and only when this is a result of real enqueue, rather than + * of finding lock in the cache. + */ + if (state == CLS_HELD && lock->cll_state < CLS_HELD) { + struct cl_object *obj; + struct inode *inode; + + obj = slice->cls_obj; + inode = ccc_object_inode(obj); + + /* vmtruncate() sets the i_size + * under both a DLM lock and the + * ll_inode_size_lock(). If we don't get the + * ll_inode_size_lock() here we can match the DLM lock and + * reset i_size. generic_file_write can then trust the + * stale i_size when doing appending writes and effectively + * cancel the result of the truncate. Getting the + * ll_inode_size_lock() after the enqueue maintains the DLM + * -> ll_inode_size_lock() acquiring order. + */ + if (lock->cll_descr.cld_start == 0 && + lock->cll_descr.cld_end == CL_PAGE_EOF) + cl_merge_lvb(env, inode); + } +} + +/***************************************************************************** + * + * io operations. + * + */ + +int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io, + __u32 enqflags, enum cl_lock_mode mode, + pgoff_t start, pgoff_t end) +{ + struct ccc_io *cio = ccc_env_io(env); + struct cl_lock_descr *descr = &cio->cui_link.cill_descr; + struct cl_object *obj = io->ci_obj; + + CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + + CDEBUG(D_VFSTRACE, "lock: %d [%lu, %lu]\n", mode, start, end); + + memset(&cio->cui_link, 0, sizeof(cio->cui_link)); + + if (cio->cui_fd && (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { + descr->cld_mode = CLM_GROUP; + descr->cld_gid = cio->cui_fd->fd_grouplock.cg_gid; + } else { + descr->cld_mode = mode; + } + descr->cld_obj = obj; + descr->cld_start = start; + descr->cld_end = end; + descr->cld_enq_flags = enqflags; + + cl_io_lock_add(env, io, &cio->cui_link); + return 0; +} + +void ccc_io_update_iov(const struct lu_env *env, + struct ccc_io *cio, struct cl_io *io) +{ + size_t size = io->u.ci_rw.crw_count; + + if (!cl_is_normalio(env, io) || !cio->cui_iter) + return; + + iov_iter_truncate(cio->cui_iter, size); +} + +int ccc_io_one_lock(const struct lu_env *env, struct cl_io *io, + __u32 enqflags, enum cl_lock_mode mode, + loff_t start, loff_t end) +{ + struct cl_object *obj = io->ci_obj; + + return ccc_io_one_lock_index(env, io, enqflags, mode, + cl_index(obj, start), cl_index(obj, end)); +} + +void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios) +{ + CLOBINVRNT(env, ios->cis_io->ci_obj, + ccc_object_invariant(ios->cis_io->ci_obj)); +} + +void ccc_io_advance(const struct lu_env *env, + const struct cl_io_slice *ios, + size_t nob) +{ + struct ccc_io *cio = cl2ccc_io(env, ios); + struct cl_io *io = ios->cis_io; + struct cl_object *obj = ios->cis_io->ci_obj; + + CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + + if (!cl_is_normalio(env, io)) + return; + + iov_iter_reexpand(cio->cui_iter, cio->cui_tot_count -= nob); +} + +/** + * Helper function that if necessary adjusts file size (inode->i_size), when + * position at the offset \a pos is accessed. File size can be arbitrary stale + * on a Lustre client, but client at least knows KMS. If accessed area is + * inside [0, KMS], set file size to KMS, otherwise glimpse file size. + * + * Locking: cl_isize_lock is used to serialize changes to inode size and to + * protect consistency between inode size and cl_object + * attributes. cl_object_size_lock() protects consistency between cl_attr's of + * top-object and sub-objects. + */ +int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, + struct cl_io *io, loff_t start, size_t count, int *exceed) +{ + struct cl_attr *attr = ccc_env_thread_attr(env); + struct inode *inode = ccc_object_inode(obj); + loff_t pos = start + count - 1; + loff_t kms; + int result; + + /* + * Consistency guarantees: following possibilities exist for the + * relation between region being accessed and real file size at this + * moment: + * + * (A): the region is completely inside of the file; + * + * (B-x): x bytes of region are inside of the file, the rest is + * outside; + * + * (C): the region is completely outside of the file. + * + * This classification is stable under DLM lock already acquired by + * the caller, because to change the class, other client has to take + * DLM lock conflicting with our lock. Also, any updates to ->i_size + * by other threads on this client are serialized by + * ll_inode_size_lock(). This guarantees that short reads are handled + * correctly in the face of concurrent writes and truncates. + */ + ccc_object_size_lock(obj); + result = cl_object_attr_get(env, obj, attr); + if (result == 0) { + kms = attr->cat_kms; + if (pos > kms) { + /* + * A glimpse is necessary to determine whether we + * return a short read (B) or some zeroes at the end + * of the buffer (C) + */ + ccc_object_size_unlock(obj); + result = cl_glimpse_lock(env, io, inode, obj, 0); + if (result == 0 && exceed) { + /* If objective page index exceed end-of-file + * page index, return directly. Do not expect + * kernel will check such case correctly. + * linux-2.6.18-128.1.1 miss to do that. + * --bug 17336 + */ + loff_t size = cl_isize_read(inode); + loff_t cur_index = start >> PAGE_CACHE_SHIFT; + loff_t size_index = (size - 1) >> + PAGE_CACHE_SHIFT; + + if ((size == 0 && cur_index != 0) || + size_index < cur_index) + *exceed = 1; + } + return result; + } + /* + * region is within kms and, hence, within real file + * size (A). We need to increase i_size to cover the + * read region so that generic_file_read() will do its + * job, but that doesn't mean the kms size is + * _correct_, it is only the _minimum_ size. If + * someone does a stat they will get the correct size + * which will always be >= the kms value here. + * b=11081 + */ + if (cl_isize_read(inode) < kms) { + cl_isize_write_nolock(inode, kms); + CDEBUG(D_VFSTRACE, DFID " updating i_size %llu\n", + PFID(lu_object_fid(&obj->co_lu)), + (__u64)cl_isize_read(inode)); + } + } + ccc_object_size_unlock(obj); + return result; +} + +/***************************************************************************** + * + * Transfer operations. + * + */ + +void ccc_req_completion(const struct lu_env *env, + const struct cl_req_slice *slice, int ioret) +{ + struct ccc_req *vrq; + + if (ioret > 0) + cl_stats_tally(slice->crs_dev, slice->crs_req->crq_type, ioret); + + vrq = cl2ccc_req(slice); + kmem_cache_free(ccc_req_kmem, vrq); +} + +/** + * Implementation of struct cl_req_operations::cro_attr_set() for ccc + * layer. ccc is responsible for + * + * - o_[mac]time + * + * - o_mode + * + * - o_parent_seq + * + * - o_[ug]id + * + * - o_parent_oid + * + * - o_parent_ver + * + * - o_ioepoch, + * + */ +void ccc_req_attr_set(const struct lu_env *env, + const struct cl_req_slice *slice, + const struct cl_object *obj, + struct cl_req_attr *attr, u64 flags) +{ + struct inode *inode; + struct obdo *oa; + u32 valid_flags; + + oa = attr->cra_oa; + inode = ccc_object_inode(obj); + valid_flags = OBD_MD_FLTYPE; + + if (slice->crs_req->crq_type == CRT_WRITE) { + if (flags & OBD_MD_FLEPOCH) { + oa->o_valid |= OBD_MD_FLEPOCH; + oa->o_ioepoch = cl_i2info(inode)->lli_ioepoch; + valid_flags |= OBD_MD_FLMTIME | OBD_MD_FLCTIME | + OBD_MD_FLUID | OBD_MD_FLGID; + } + } + obdo_from_inode(oa, inode, valid_flags & flags); + obdo_set_parent_fid(oa, &cl_i2info(inode)->lli_fid); + memcpy(attr->cra_jobid, cl_i2info(inode)->lli_jobid, + JOBSTATS_JOBID_SIZE); +} + +static const struct cl_req_operations ccc_req_ops = { + .cro_attr_set = ccc_req_attr_set, + .cro_completion = ccc_req_completion +}; + +int cl_setattr_ost(struct inode *inode, const struct iattr *attr) +{ + struct lu_env *env; + struct cl_io *io; + int result; + int refcheck; + + env = cl_env_get(&refcheck); + if (IS_ERR(env)) + return PTR_ERR(env); + + io = ccc_env_thread_io(env); + io->ci_obj = cl_i2info(inode)->lli_clob; + + io->u.ci_setattr.sa_attr.lvb_atime = LTIME_S(attr->ia_atime); + io->u.ci_setattr.sa_attr.lvb_mtime = LTIME_S(attr->ia_mtime); + io->u.ci_setattr.sa_attr.lvb_ctime = LTIME_S(attr->ia_ctime); + io->u.ci_setattr.sa_attr.lvb_size = attr->ia_size; + io->u.ci_setattr.sa_valid = attr->ia_valid; + +again: + if (cl_io_init(env, io, CIT_SETATTR, io->ci_obj) == 0) { + struct ccc_io *cio = ccc_env_io(env); + + if (attr->ia_valid & ATTR_FILE) + /* populate the file descriptor for ftruncate to honor + * group lock - see LU-787 + */ + cio->cui_fd = cl_iattr2fd(inode, attr); + + result = cl_io_loop(env, io); + } else { + result = io->ci_result; + } + cl_io_fini(env, io); + if (unlikely(io->ci_need_restart)) + goto again; + /* HSM import case: file is released, cannot be restored + * no need to fail except if restore registration failed + * with -ENODATA + */ + if (result == -ENODATA && io->ci_restore_needed && + io->ci_result != -ENODATA) + result = 0; + cl_env_put(env, &refcheck); + return result; +} + +/***************************************************************************** + * + * Type conversions. + * + */ + +struct lu_device *ccc2lu_dev(struct ccc_device *vdv) +{ + return &vdv->cdv_cl.cd_lu_dev; +} + +struct ccc_device *lu2ccc_dev(const struct lu_device *d) +{ + return container_of0(d, struct ccc_device, cdv_cl.cd_lu_dev); +} + +struct ccc_device *cl2ccc_dev(const struct cl_device *d) +{ + return container_of0(d, struct ccc_device, cdv_cl); +} + +struct lu_object *ccc2lu(struct ccc_object *vob) +{ + return &vob->cob_cl.co_lu; +} + +struct ccc_object *lu2ccc(const struct lu_object *obj) +{ + return container_of0(obj, struct ccc_object, cob_cl.co_lu); +} + +struct ccc_object *cl2ccc(const struct cl_object *obj) +{ + return container_of0(obj, struct ccc_object, cob_cl); +} + +struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice) +{ + return container_of(slice, struct ccc_lock, clk_cl); +} + +struct ccc_io *cl2ccc_io(const struct lu_env *env, + const struct cl_io_slice *slice) +{ + struct ccc_io *cio; + + cio = container_of(slice, struct ccc_io, cui_cl); + LASSERT(cio == ccc_env_io(env)); + return cio; +} + +struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice) +{ + return container_of0(slice, struct ccc_req, crq_cl); +} + +struct page *cl2vm_page(const struct cl_page_slice *slice) +{ + return cl2ccc_page(slice)->cpg_page; +} + +/***************************************************************************** + * + * Accessors. + * + */ +int ccc_object_invariant(const struct cl_object *obj) +{ + struct inode *inode = ccc_object_inode(obj); + struct cl_inode_info *lli = cl_i2info(inode); + + return (S_ISREG(cl_inode_mode(inode)) || + /* i_mode of unlinked inode is zeroed. */ + cl_inode_mode(inode) == 0) && lli->lli_clob == obj; +} + +struct inode *ccc_object_inode(const struct cl_object *obj) +{ + return cl2ccc(obj)->cob_inode; +} + +/** + * Initialize or update CLIO structures for regular files when new + * meta-data arrives from the server. + * + * \param inode regular file inode + * \param md new file metadata from MDS + * - allocates cl_object if necessary, + * - updated layout, if object was already here. + */ +int cl_file_inode_init(struct inode *inode, struct lustre_md *md) +{ + struct lu_env *env; + struct cl_inode_info *lli; + struct cl_object *clob; + struct lu_site *site; + struct lu_fid *fid; + struct cl_object_conf conf = { + .coc_inode = inode, + .u = { + .coc_md = md + } + }; + int result = 0; + int refcheck; + + LASSERT(md->body->valid & OBD_MD_FLID); + LASSERT(S_ISREG(cl_inode_mode(inode))); + + env = cl_env_get(&refcheck); + if (IS_ERR(env)) + return PTR_ERR(env); + + site = cl_i2sbi(inode)->ll_site; + lli = cl_i2info(inode); + fid = &lli->lli_fid; + LASSERT(fid_is_sane(fid)); + + if (!lli->lli_clob) { + /* clob is slave of inode, empty lli_clob means for new inode, + * there is no clob in cache with the given fid, so it is + * unnecessary to perform lookup-alloc-lookup-insert, just + * alloc and insert directly. + */ + LASSERT(inode->i_state & I_NEW); + conf.coc_lu.loc_flags = LOC_F_NEW; + clob = cl_object_find(env, lu2cl_dev(site->ls_top_dev), + fid, &conf); + if (!IS_ERR(clob)) { + /* + * No locking is necessary, as new inode is + * locked by I_NEW bit. + */ + lli->lli_clob = clob; + lli->lli_has_smd = lsm_has_objects(md->lsm); + lu_object_ref_add(&clob->co_lu, "inode", inode); + } else { + result = PTR_ERR(clob); + } + } else { + result = cl_conf_set(env, lli->lli_clob, &conf); + } + + cl_env_put(env, &refcheck); + + if (result != 0) + CERROR("Failure to initialize cl object " DFID ": %d\n", + PFID(fid), result); + return result; +} + +/** + * Wait for others drop their references of the object at first, then we drop + * the last one, which will lead to the object be destroyed immediately. + * Must be called after cl_object_kill() against this object. + * + * The reason we want to do this is: destroying top object will wait for sub + * objects being destroyed first, so we can't let bottom layer (e.g. from ASTs) + * to initiate top object destroying which may deadlock. See bz22520. + */ +static void cl_object_put_last(struct lu_env *env, struct cl_object *obj) +{ + struct lu_object_header *header = obj->co_lu.lo_header; + wait_queue_t waiter; + + if (unlikely(atomic_read(&header->loh_ref) != 1)) { + struct lu_site *site = obj->co_lu.lo_dev->ld_site; + struct lu_site_bkt_data *bkt; + + bkt = lu_site_bkt_from_fid(site, &header->loh_fid); + + init_waitqueue_entry(&waiter, current); + add_wait_queue(&bkt->lsb_marche_funebre, &waiter); + + while (1) { + set_current_state(TASK_UNINTERRUPTIBLE); + if (atomic_read(&header->loh_ref) == 1) + break; + schedule(); + } + + set_current_state(TASK_RUNNING); + remove_wait_queue(&bkt->lsb_marche_funebre, &waiter); + } + + cl_object_put(env, obj); +} + +void cl_inode_fini(struct inode *inode) +{ + struct lu_env *env; + struct cl_inode_info *lli = cl_i2info(inode); + struct cl_object *clob = lli->lli_clob; + int refcheck; + int emergency; + + if (clob) { + void *cookie; + + cookie = cl_env_reenter(); + env = cl_env_get(&refcheck); + emergency = IS_ERR(env); + if (emergency) { + mutex_lock(&ccc_inode_fini_guard); + LASSERT(ccc_inode_fini_env); + cl_env_implant(ccc_inode_fini_env, &refcheck); + env = ccc_inode_fini_env; + } + /* + * cl_object cache is a slave to inode cache (which, in turn + * is a slave to dentry cache), don't keep cl_object in memory + * when its master is evicted. + */ + cl_object_kill(env, clob); + lu_object_ref_del(&clob->co_lu, "inode", inode); + cl_object_put_last(env, clob); + lli->lli_clob = NULL; + if (emergency) { + cl_env_unplant(ccc_inode_fini_env, &refcheck); + mutex_unlock(&ccc_inode_fini_guard); + } else { + cl_env_put(env, &refcheck); + } + cl_env_reexit(cookie); + } +} + +/** + * return IF_* type for given lu_dirent entry. + * IF_* flag shld be converted to particular OS file type in + * platform llite module. + */ +__u16 ll_dirent_type_get(struct lu_dirent *ent) +{ + __u16 type = 0; + struct luda_type *lt; + int len = 0; + + if (le32_to_cpu(ent->lde_attrs) & LUDA_TYPE) { + const unsigned int align = sizeof(struct luda_type) - 1; + + len = le16_to_cpu(ent->lde_namelen); + len = (len + align) & ~align; + lt = (void *)ent->lde_name + len; + type = IFTODT(le16_to_cpu(lt->lt_type)); + } + return type; +} + +/** + * build inode number from passed @fid + */ +__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32) +{ + if (BITS_PER_LONG == 32 || api32) + return fid_flatten32(fid); + else + return fid_flatten(fid); +} + +/** + * build inode generation from passed @fid. If our FID overflows the 32-bit + * inode number then return a non-zero generation to distinguish them. + */ +__u32 cl_fid_build_gen(const struct lu_fid *fid) +{ + __u32 gen; + + if (fid_is_igif(fid)) { + gen = lu_igif_gen(fid); + return gen; + } + + gen = fid_flatten(fid) >> 32; + return gen; +} + +/* lsm is unreliable after hsm implementation as layout can be changed at + * any time. This is only to support old, non-clio-ized interfaces. It will + * cause deadlock if clio operations are called with this extra layout refcount + * because in case the layout changed during the IO, ll_layout_refresh() will + * have to wait for the refcount to become zero to destroy the older layout. + * + * Notice that the lsm returned by this function may not be valid unless called + * inside layout lock - MDS_INODELOCK_LAYOUT. + */ +struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode) +{ + return lov_lsm_get(cl_i2info(inode)->lli_clob); +} + +inline void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm) +{ + lov_lsm_put(cl_i2info(inode)->lli_clob, lsm); +} diff --git a/drivers/staging/lustre/lustre/llite/lcommon_misc.c b/drivers/staging/lustre/lustre/llite/lcommon_misc.c new file mode 100644 index 0000000..d80bcedd --- /dev/null +++ b/drivers/staging/lustre/lustre/llite/lcommon_misc.c @@ -0,0 +1,200 @@ +/* + * GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + * GPL HEADER END + */ +/* + * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. + * + * Copyright (c) 2011, 2012, Intel Corporation. + */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. + * + * cl code shared between vvp and liblustre (and other Lustre clients in the + * future). + * + */ +#include "../include/obd_class.h" +#include "../include/obd_support.h" +#include "../include/obd.h" +#include "../include/cl_object.h" +#include "../include/lclient.h" + +#include "../include/lustre_lite.h" + +/* Initialize the default and maximum LOV EA and cookie sizes. This allows + * us to make MDS RPCs with large enough reply buffers to hold the + * maximum-sized (= maximum striped) EA and cookie without having to + * calculate this (via a call into the LOV + OSCs) each time we make an RPC. + */ +int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp) +{ + struct lov_stripe_md lsm = { .lsm_magic = LOV_MAGIC_V3 }; + __u32 valsize = sizeof(struct lov_desc); + int rc, easize, def_easize, cookiesize; + struct lov_desc desc; + __u16 stripes, def_stripes; + + rc = obd_get_info(NULL, dt_exp, sizeof(KEY_LOVDESC), KEY_LOVDESC, + &valsize, &desc, NULL); + if (rc) + return rc; + + stripes = min_t(__u32, desc.ld_tgt_count, LOV_MAX_STRIPE_COUNT); + lsm.lsm_stripe_count = stripes; + easize = obd_size_diskmd(dt_exp, &lsm); + + def_stripes = min_t(__u32, desc.ld_default_stripe_count, + LOV_MAX_STRIPE_COUNT); + lsm.lsm_stripe_count = def_stripes; + def_easize = obd_size_diskmd(dt_exp, &lsm); + + cookiesize = stripes * sizeof(struct llog_cookie); + + /* default cookiesize is 0 because from 2.4 server doesn't send + * llog cookies to client. + */ + CDEBUG(D_HA, + "updating def/max_easize: %d/%d def/max_cookiesize: 0/%d\n", + def_easize, easize, cookiesize); + + rc = md_init_ea_size(md_exp, easize, def_easize, cookiesize, 0); + return rc; +} + +/** + * This function is used as an upcall-callback hooked by liblustre and llite + * clients into obd_notify() listeners chain to handle notifications about + * change of import connect_flags. See llu_fsswop_mount() and + * lustre_common_fill_super(). + */ +int cl_ocd_update(struct obd_device *host, + struct obd_device *watched, + enum obd_notify_event ev, void *owner, void *data) +{ + struct lustre_client_ocd *lco; + struct client_obd *cli; + __u64 flags; + int result; + + if (!strcmp(watched->obd_type->typ_name, LUSTRE_OSC_NAME)) { + cli = &watched->u.cli; + lco = owner; + flags = cli->cl_import->imp_connect_data.ocd_connect_flags; + CDEBUG(D_SUPER, "Changing connect_flags: %#llx -> %#llx\n", + lco->lco_flags, flags); + mutex_lock(&lco->lco_lock); + lco->lco_flags &= flags; + /* for each osc event update ea size */ + if (lco->lco_dt_exp) + cl_init_ea_size(lco->lco_md_exp, lco->lco_dt_exp); + + mutex_unlock(&lco->lco_lock); + result = 0; + } else { + CERROR("unexpected notification from %s %s!\n", + watched->obd_type->typ_name, + watched->obd_name); + result = -EINVAL; + } + return result; +} + +#define GROUPLOCK_SCOPE "grouplock" + +int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, + struct ccc_grouplock *cg) +{ + struct lu_env *env; + struct cl_io *io; + struct cl_lock *lock; + struct cl_lock_descr *descr; + __u32 enqflags; + int refcheck; + int rc; + + env = cl_env_get(&refcheck); + if (IS_ERR(env)) + return PTR_ERR(env); + + io = ccc_env_thread_io(env); + io->ci_obj = obj; + io->ci_ignore_layout = 1; + + rc = cl_io_init(env, io, CIT_MISC, io->ci_obj); + if (rc) { + /* Does not make sense to take GL for released layout */ + if (rc > 0) + rc = -ENOTSUPP; + cl_env_put(env, &refcheck); + return rc; + } + + descr = &ccc_env_info(env)->cti_descr; + descr->cld_obj = obj; + descr->cld_start = 0; + descr->cld_end = CL_PAGE_EOF; + descr->cld_gid = gid; + descr->cld_mode = CLM_GROUP; + + enqflags = CEF_MUST | (nonblock ? CEF_NONBLOCK : 0); + descr->cld_enq_flags = enqflags; + + lock = cl_lock_request(env, io, descr, GROUPLOCK_SCOPE, current); + if (IS_ERR(lock)) { + cl_io_fini(env, io); + cl_env_put(env, &refcheck); + return PTR_ERR(lock); + } + + cg->cg_env = cl_env_get(&refcheck); + cg->cg_io = io; + cg->cg_lock = lock; + cg->cg_gid = gid; + LASSERT(cg->cg_env == env); + + cl_env_unplant(env, &refcheck); + return 0; +} + +void cl_put_grouplock(struct ccc_grouplock *cg) +{ + struct lu_env *env = cg->cg_env; + struct cl_io *io = cg->cg_io; + struct cl_lock *lock = cg->cg_lock; + int refcheck; + + LASSERT(cg->cg_env); + LASSERT(cg->cg_gid); + + cl_env_implant(env, &refcheck); + cl_env_put(env, &refcheck); + + cl_unuse(env, lock); + cl_lock_release(env, lock, GROUPLOCK_SCOPE, current); + cl_io_fini(env, io); + cl_env_put(env, NULL); +} -- cgit v0.10.2 From 26f98e82e7ef3e1ecad0a0b83020dd19fc9ff822 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:25 -0400 Subject: staging/lustre: Reintroduce global env list This reverts a patch that was merged before lustre client was introduced into the stagign tree, so it's not in the history. The performance dropped a lot when memory reclaim process kicked in as ll_releasepage() was called to destroy lustre pages. It turned out that big overhead to allocate cl_env and keys on the fly so we have to revert this patch. The original problem for the reverted patch would be solved in a follow on patch instead. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/7888 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3321 Reviewed-by: Niu Yawei Reviewed-by: Lai Siyao Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index fb971de..e611f79 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -3241,6 +3241,7 @@ void *cl_env_reenter(void); void cl_env_reexit(void *cookie); void cl_env_implant(struct lu_env *env, int *refcheck); void cl_env_unplant(struct lu_env *env, int *refcheck); +unsigned int cl_env_cache_purge(unsigned int nr); /** @} cl_env */ diff --git a/drivers/staging/lustre/lustre/llite/lcommon_misc.c b/drivers/staging/lustre/lustre/llite/lcommon_misc.c index d80bcedd..f68c368 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_misc.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_misc.c @@ -146,10 +146,11 @@ int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, rc = cl_io_init(env, io, CIT_MISC, io->ci_obj); if (rc) { + cl_io_fini(env, io); + cl_env_put(env, &refcheck); /* Does not make sense to take GL for released layout */ if (rc > 0) rc = -ENOTSUPP; - cl_env_put(env, &refcheck); return rc; } diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 6d6bb33..673d31e 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -999,6 +999,8 @@ void ll_put_super(struct super_block *sb) lustre_common_put_super(sb); + cl_env_cache_purge(~0); + module_put(THIS_MODULE); } /* client_put_super */ diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c index 43e299d..0772706 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c @@ -492,6 +492,13 @@ EXPORT_SYMBOL(cl_site_stats_print); * bz20044, bz22683. */ +static LIST_HEAD(cl_envs); +static unsigned int cl_envs_cached_nr; +static unsigned int cl_envs_cached_max = 128; /* XXX: prototype: arbitrary limit + * for now. + */ +static DEFINE_SPINLOCK(cl_envs_guard); + struct cl_env { void *ce_magic; struct lu_env ce_lu; @@ -697,6 +704,39 @@ static void cl_env_fini(struct cl_env *cle) kmem_cache_free(cl_env_kmem, cle); } +static struct lu_env *cl_env_obtain(void *debug) +{ + struct cl_env *cle; + struct lu_env *env; + + spin_lock(&cl_envs_guard); + LASSERT(equi(cl_envs_cached_nr == 0, list_empty(&cl_envs))); + if (cl_envs_cached_nr > 0) { + int rc; + + cle = container_of(cl_envs.next, struct cl_env, ce_linkage); + list_del_init(&cle->ce_linkage); + cl_envs_cached_nr--; + spin_unlock(&cl_envs_guard); + + env = &cle->ce_lu; + rc = lu_env_refill(env); + if (rc == 0) { + cl_env_init0(cle, debug); + lu_context_enter(&env->le_ctx); + lu_context_enter(&cle->ce_ses); + } else { + cl_env_fini(cle); + env = ERR_PTR(rc); + } + } else { + spin_unlock(&cl_envs_guard); + env = cl_env_new(lu_context_tags_default, + lu_session_tags_default, debug); + } + return env; +} + static inline struct cl_env *cl_env_container(struct lu_env *env) { return container_of(env, struct cl_env, ce_lu); @@ -727,6 +767,8 @@ static struct lu_env *cl_env_peek(int *refcheck) * Returns lu_env: if there already is an environment associated with the * current thread, it is returned, otherwise, new environment is allocated. * + * Allocations are amortized through the global cache of environments. + * * \param refcheck pointer to a counter used to detect environment leaks. In * the usual case cl_env_get() and cl_env_put() are called in the same lexical * scope and pointer to the same integer is passed as \a refcheck. This is @@ -740,10 +782,7 @@ struct lu_env *cl_env_get(int *refcheck) env = cl_env_peek(refcheck); if (!env) { - env = cl_env_new(lu_context_tags_default, - lu_session_tags_default, - __builtin_return_address(0)); - + env = cl_env_obtain(__builtin_return_address(0)); if (!IS_ERR(env)) { struct cl_env *cle; @@ -787,6 +826,32 @@ static void cl_env_exit(struct cl_env *cle) } /** + * Finalizes and frees a given number of cached environments. This is done to + * (1) free some memory (not currently hooked into VM), or (2) release + * references to modules. + */ +unsigned int cl_env_cache_purge(unsigned int nr) +{ + struct cl_env *cle; + + spin_lock(&cl_envs_guard); + for (; !list_empty(&cl_envs) && nr > 0; --nr) { + cle = container_of(cl_envs.next, struct cl_env, ce_linkage); + list_del_init(&cle->ce_linkage); + LASSERT(cl_envs_cached_nr > 0); + cl_envs_cached_nr--; + spin_unlock(&cl_envs_guard); + + cl_env_fini(cle); + spin_lock(&cl_envs_guard); + } + LASSERT(equi(cl_envs_cached_nr == 0, list_empty(&cl_envs))); + spin_unlock(&cl_envs_guard); + return nr; +} +EXPORT_SYMBOL(cl_env_cache_purge); + +/** * Release an environment. * * Decrement \a env reference counter. When counter drops to 0, nothing in @@ -808,7 +873,22 @@ void cl_env_put(struct lu_env *env, int *refcheck) cl_env_detach(cle); cle->ce_debug = NULL; cl_env_exit(cle); - cl_env_fini(cle); + /* + * Don't bother to take a lock here. + * + * Return environment to the cache only when it was allocated + * with the standard tags. + */ + if (cl_envs_cached_nr < cl_envs_cached_max && + (env->le_ctx.lc_tags & ~LCT_HAS_EXIT) == LCT_CL_THREAD && + (env->le_ses->lc_tags & ~LCT_HAS_EXIT) == LCT_SESSION) { + spin_lock(&cl_envs_guard); + list_add(&cle->ce_linkage, &cl_envs); + cl_envs_cached_nr++; + spin_unlock(&cl_envs_guard); + } else { + cl_env_fini(cle); + } } } EXPORT_SYMBOL(cl_env_put); diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c index 69fdcee..770d5bd 100644 --- a/drivers/staging/lustre/lustre/obdclass/lu_object.c +++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c @@ -55,6 +55,7 @@ #include "../include/lustre_disk.h" #include "../include/lustre_fid.h" #include "../include/lu_object.h" +#include "../include/cl_object.h" #include "../include/lu_ref.h" #include @@ -1468,6 +1469,7 @@ void lu_context_key_quiesce(struct lu_context_key *key) /* * XXX layering violation. */ + cl_env_cache_purge(~0); key->lct_tags |= LCT_QUIESCENT; /* * XXX memory barrier has to go here. -- cgit v0.10.2 From 5196e42c372fc33551c836d9d6d0a0883b4d2d19 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:26 -0400 Subject: staging/lustre/osc: Adjustment on osc LRU for performance Add and discard pages from LRU in batch. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/7890 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3321 Reviewed-by: Niu Yawei Reviewed-by: Lai Siyao Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 673d31e..a4401f2 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -85,10 +85,7 @@ static struct ll_sb_info *ll_init_sbi(struct super_block *sb) si_meminfo(&si); pages = si.totalram - si.totalhigh; - if (pages >> (20 - PAGE_CACHE_SHIFT) < 512) - lru_page_max = pages / 2; - else - lru_page_max = (pages / 4) * 3; + lru_page_max = pages / 2; /* initialize lru data */ atomic_set(&sbi->ll_cache.ccc_users, 0); diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c index 57c43c5..3eff12c 100644 --- a/drivers/staging/lustre/lustre/osc/lproc_osc.c +++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c @@ -223,7 +223,7 @@ static ssize_t osc_cached_mb_seq_write(struct file *file, rc = atomic_read(&cli->cl_lru_in_list) - pages_number; if (rc > 0) - (void)osc_lru_shrink(cli, rc); + (void)osc_lru_shrink(cli, rc, true); return count; } diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index 3cfd2b0..6196c3b 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -856,6 +856,8 @@ int osc_extent_finish(const struct lu_env *env, struct osc_extent *ext, ext->oe_rc = rc ?: ext->oe_nr_pages; EASSERT(ergo(rc == 0, ext->oe_state == OES_RPC), ext); + + osc_lru_add_batch(cli, &ext->oe_pages); list_for_each_entry_safe(oap, tmp, &ext->oe_pages, oap_pending_item) { list_del_init(&oap->oap_rpc_item); list_del_init(&oap->oap_pending_item); diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index d55d04d..f516848 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -77,6 +77,8 @@ struct osc_io { */ struct osc_extent *oi_trunc; + int oi_lru_reserved; + struct obd_info oi_info; struct obdo oi_oa; struct osc_async_cbargs { @@ -100,7 +102,7 @@ struct osc_session { struct osc_io os_io; }; -#define OTI_PVEC_SIZE 64 +#define OTI_PVEC_SIZE 256 struct osc_thread_info { struct ldlm_res_id oti_resname; ldlm_policy_data_t oti_policy; @@ -369,18 +371,15 @@ struct osc_page { * Set if the page must be transferred with OBD_BRW_SRVLOCK. */ ops_srvlock:1; - union { - /** - * lru page list. ops_inflight and ops_lru are exclusive so - * that they can share the same data. - */ - struct list_head ops_lru; - /** - * Linkage into a per-osc_object list of pages in flight. For - * debugging. - */ - struct list_head ops_inflight; - }; + /** + * lru page list. See osc_lru_{del|use}() in osc_page.c for usage. + */ + struct list_head ops_lru; + /** + * Linkage into a per-osc_object list of pages in flight. For + * debugging. + */ + struct list_head ops_inflight; /** * Thread that submitted this page for transfer. For debugging. */ @@ -432,6 +431,7 @@ void osc_index2policy (ldlm_policy_data_t *policy, const struct cl_object *obj, int osc_lvb_print (const struct lu_env *env, void *cookie, lu_printer_t p, const struct ost_lvb *lvb); +void osc_lru_add_batch(struct client_obd *cli, struct list_head *list); void osc_page_submit(const struct lu_env *env, struct osc_page *opg, enum cl_req_type crt, int brw_flags); int osc_cancel_async_page(const struct lu_env *env, struct osc_page *ops); diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h index ea695c2..ec12962 100644 --- a/drivers/staging/lustre/lustre/osc/osc_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_internal.h @@ -130,7 +130,8 @@ int osc_sync_base(struct obd_export *exp, struct obd_info *oinfo, int osc_process_config_base(struct obd_device *obd, struct lustre_cfg *cfg); int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, struct list_head *ext_list, int cmd); -int osc_lru_shrink(struct client_obd *cli, int target); +int osc_lru_shrink(struct client_obd *cli, int target, bool force); +int osc_lru_reclaim(struct client_obd *cli); extern spinlock_t osc_ast_guard; diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c index 6bd0a45..a0fa533 100644 --- a/drivers/staging/lustre/lustre/osc/osc_io.c +++ b/drivers/staging/lustre/lustre/osc/osc_io.c @@ -308,6 +308,55 @@ static int osc_io_commit_write(const struct lu_env *env, return 0; } +static int osc_io_rw_iter_init(const struct lu_env *env, + const struct cl_io_slice *ios) +{ + struct cl_io *io = ios->cis_io; + struct osc_io *oio = osc_env_io(env); + struct osc_object *osc = cl2osc(ios->cis_obj); + struct client_obd *cli = osc_cli(osc); + unsigned long c; + unsigned int npages; + unsigned int max_pages; + + if (cl_io_is_append(io)) + return 0; + + npages = io->u.ci_rw.crw_count >> PAGE_CACHE_SHIFT; + if (io->u.ci_rw.crw_pos & ~PAGE_MASK) + ++npages; + + max_pages = cli->cl_max_pages_per_rpc * cli->cl_max_rpcs_in_flight; + if (npages > max_pages) + npages = max_pages; + + c = atomic_read(cli->cl_lru_left); + if (c < npages && osc_lru_reclaim(cli) > 0) + c = atomic_read(cli->cl_lru_left); + while (c >= npages) { + if (c == atomic_cmpxchg(cli->cl_lru_left, c, c - npages)) { + oio->oi_lru_reserved = npages; + break; + } + c = atomic_read(cli->cl_lru_left); + } + + return 0; +} + +static void osc_io_rw_iter_fini(const struct lu_env *env, + const struct cl_io_slice *ios) +{ + struct osc_io *oio = osc_env_io(env); + struct osc_object *osc = cl2osc(ios->cis_obj); + struct client_obd *cli = osc_cli(osc); + + if (oio->oi_lru_reserved > 0) { + atomic_add(oio->oi_lru_reserved, cli->cl_lru_left); + oio->oi_lru_reserved = 0; + } +} + static int osc_io_fault_start(const struct lu_env *env, const struct cl_io_slice *ios) { @@ -650,6 +699,8 @@ static const struct cl_io_operations osc_io_ops = { .cio_fini = osc_io_fini }, [CIT_WRITE] = { + .cio_iter_init = osc_io_rw_iter_init, + .cio_iter_fini = osc_io_rw_iter_fini, .cio_start = osc_io_write_start, .cio_end = osc_io_end, .cio_fini = osc_io_fini diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index d720b1a..a60b783 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -42,8 +42,8 @@ #include "osc_cl_internal.h" -static void osc_lru_del(struct client_obd *cli, struct osc_page *opg, bool del); -static void osc_lru_add(struct client_obd *cli, struct osc_page *opg); +static void osc_lru_del(struct client_obd *cli, struct osc_page *opg); +static void osc_lru_use(struct client_obd *cli, struct osc_page *opg); static int osc_lru_reserve(const struct lu_env *env, struct osc_object *obj, struct osc_page *opg); @@ -104,10 +104,7 @@ static void osc_page_transfer_add(const struct lu_env *env, { struct osc_object *obj = cl2osc(opg->ops_cl.cpl_obj); - /* ops_lru and ops_inflight share the same field, so take it from LRU - * first and then use it as inflight. - */ - osc_lru_del(osc_cli(obj), opg, false); + osc_lru_use(osc_cli(obj), opg); spin_lock(&obj->oo_seatbelt); list_add(&opg->ops_inflight, &obj->oo_inflight[crt]); @@ -222,21 +219,15 @@ static void osc_page_completion_read(const struct lu_env *env, int ioret) { struct osc_page *opg = cl2osc_page(slice); - struct osc_object *obj = cl2osc(opg->ops_cl.cpl_obj); if (likely(opg->ops_lock)) osc_page_putref_lock(env, opg); - osc_lru_add(osc_cli(obj), opg); } static void osc_page_completion_write(const struct lu_env *env, const struct cl_page_slice *slice, int ioret) { - struct osc_page *opg = cl2osc_page(slice); - struct osc_object *obj = cl2osc(slice->cpl_obj); - - osc_lru_add(osc_cli(obj), opg); } static int osc_page_fail(const struct lu_env *env, @@ -334,7 +325,7 @@ static void osc_page_delete(const struct lu_env *env, } spin_unlock(&obj->oo_seatbelt); - osc_lru_del(osc_cli(obj), opg, true); + osc_lru_del(osc_cli(obj), opg); } static void osc_page_clip(const struct lu_env *env, @@ -483,13 +474,12 @@ void osc_page_submit(const struct lu_env *env, struct osc_page *opg, */ static DECLARE_WAIT_QUEUE_HEAD(osc_lru_waitq); -static atomic_t osc_lru_waiters = ATOMIC_INIT(0); /* LRU pages are freed in batch mode. OSC should at least free this * number of pages to avoid running out of LRU budget, and.. */ static const int lru_shrink_min = 2 << (20 - PAGE_CACHE_SHIFT); /* 2M */ /* free this number at most otherwise it will take too long time to finish. */ -static const int lru_shrink_max = 32 << (20 - PAGE_CACHE_SHIFT); /* 32M */ +static const int lru_shrink_max = 8 << (20 - PAGE_CACHE_SHIFT); /* 8M */ /* Check if we can free LRU slots from this OSC. If there exists LRU waiters, * we should free slots aggressively. In this way, slots are freed in a steady @@ -500,62 +490,127 @@ static const int lru_shrink_max = 32 << (20 - PAGE_CACHE_SHIFT); /* 32M */ static int osc_cache_too_much(struct client_obd *cli) { struct cl_client_cache *cache = cli->cl_cache; - int pages = atomic_read(&cli->cl_lru_in_list) >> 1; + int pages = atomic_read(&cli->cl_lru_in_list); + unsigned long budget; - if (atomic_read(&osc_lru_waiters) > 0 && - atomic_read(cli->cl_lru_left) < lru_shrink_max) - /* drop lru pages aggressively */ - return min(pages, lru_shrink_max); + budget = cache->ccc_lru_max / atomic_read(&cache->ccc_users); /* if it's going to run out LRU slots, we should free some, but not * too much to maintain fairness among OSCs. */ if (atomic_read(cli->cl_lru_left) < cache->ccc_lru_max >> 4) { - unsigned long tmp; + if (pages >= budget) + return lru_shrink_max; + else if (pages >= budget / 2) + return lru_shrink_min; + } else if (pages >= budget * 2) + return lru_shrink_min; + return 0; +} - tmp = cache->ccc_lru_max / atomic_read(&cache->ccc_users); - if (pages > tmp) - return min(pages, lru_shrink_max); +void osc_lru_add_batch(struct client_obd *cli, struct list_head *plist) +{ + LIST_HEAD(lru); + struct osc_async_page *oap; + int npages = 0; + + list_for_each_entry(oap, plist, oap_pending_item) { + struct osc_page *opg = oap2osc_page(oap); + + if (!opg->ops_in_lru) + continue; - return pages > lru_shrink_min ? lru_shrink_min : 0; + ++npages; + LASSERT(list_empty(&opg->ops_lru)); + list_add(&opg->ops_lru, &lru); } - return 0; + if (npages > 0) { + client_obd_list_lock(&cli->cl_lru_list_lock); + list_splice_tail(&lru, &cli->cl_lru_list); + atomic_sub(npages, &cli->cl_lru_busy); + atomic_add(npages, &cli->cl_lru_in_list); + client_obd_list_unlock(&cli->cl_lru_list_lock); + + /* XXX: May set force to be true for better performance */ + osc_lru_shrink(cli, osc_cache_too_much(cli), false); + } } -/* Return how many pages are not discarded in @pvec. */ -static int discard_pagevec(const struct lu_env *env, struct cl_io *io, - struct cl_page **pvec, int max_index) +static void __osc_lru_del(struct client_obd *cli, struct osc_page *opg) +{ + LASSERT(atomic_read(&cli->cl_lru_in_list) > 0); + list_del_init(&opg->ops_lru); + atomic_dec(&cli->cl_lru_in_list); +} + +/** + * Page is being destroyed. The page may be not in LRU list, if the transfer + * has never finished(error occurred). + */ +static void osc_lru_del(struct client_obd *cli, struct osc_page *opg) +{ + if (opg->ops_in_lru) { + client_obd_list_lock(&cli->cl_lru_list_lock); + if (!list_empty(&opg->ops_lru)) { + __osc_lru_del(cli, opg); + } else { + LASSERT(atomic_read(&cli->cl_lru_busy) > 0); + atomic_dec(&cli->cl_lru_busy); + } + client_obd_list_unlock(&cli->cl_lru_list_lock); + + atomic_inc(cli->cl_lru_left); + /* this is a great place to release more LRU pages if + * this osc occupies too many LRU pages and kernel is + * stealing one of them. + */ + if (!memory_pressure_get()) + osc_lru_shrink(cli, osc_cache_too_much(cli), false); + wake_up(&osc_lru_waitq); + } else { + LASSERT(list_empty(&opg->ops_lru)); + } +} + +/** + * Delete page from LRUlist for redirty. + */ +static void osc_lru_use(struct client_obd *cli, struct osc_page *opg) +{ + /* If page is being transferred for the first time, + * ops_lru should be empty + */ + if (opg->ops_in_lru && !list_empty(&opg->ops_lru)) { + client_obd_list_lock(&cli->cl_lru_list_lock); + __osc_lru_del(cli, opg); + client_obd_list_unlock(&cli->cl_lru_list_lock); + atomic_inc(&cli->cl_lru_busy); + } +} + +static void discard_pagevec(const struct lu_env *env, struct cl_io *io, + struct cl_page **pvec, int max_index) { - int count; int i; - for (count = 0, i = 0; i < max_index; i++) { + for (i = 0; i < max_index; i++) { struct cl_page *page = pvec[i]; - if (cl_page_own_try(env, io, page) == 0) { - /* free LRU page only if nobody is using it. - * This check is necessary to avoid freeing the pages - * having already been removed from LRU and pinned - * for IO. - */ - if (!cl_page_in_use(page)) { - cl_page_unmap(env, io, page); - cl_page_discard(env, io, page); - ++count; - } - cl_page_disown(env, io, page); - } + LASSERT(cl_page_is_owned(page, io)); + cl_page_unmap(env, io, page); + cl_page_discard(env, io, page); + cl_page_disown(env, io, page); cl_page_put(env, page); + pvec[i] = NULL; } - return max_index - count; } /** * Drop @target of pages from LRU at most. */ -int osc_lru_shrink(struct client_obd *cli, int target) +int osc_lru_shrink(struct client_obd *cli, int target, bool force) { struct cl_env_nest nest; struct lu_env *env; @@ -573,18 +628,32 @@ int osc_lru_shrink(struct client_obd *cli, int target) if (atomic_read(&cli->cl_lru_in_list) == 0 || target <= 0) return 0; + if (!force) { + if (atomic_read(&cli->cl_lru_shrinkers) > 0) + return -EBUSY; + + if (atomic_inc_return(&cli->cl_lru_shrinkers) > 1) { + atomic_dec(&cli->cl_lru_shrinkers); + return -EBUSY; + } + } else { + atomic_inc(&cli->cl_lru_shrinkers); + } + env = cl_env_nested_get(&nest); - if (IS_ERR(env)) - return PTR_ERR(env); + if (IS_ERR(env)) { + rc = PTR_ERR(env); + goto out; + } pvec = osc_env_info(env)->oti_pvec; io = &osc_env_info(env)->oti_io; client_obd_list_lock(&cli->cl_lru_list_lock); - atomic_inc(&cli->cl_lru_shrinkers); maxscan = min(target << 1, atomic_read(&cli->cl_lru_in_list)); list_for_each_entry_safe(opg, temp, &cli->cl_lru_list, ops_lru) { struct cl_page *page; + bool will_free = false; if (--maxscan < 0) break; @@ -603,7 +672,7 @@ int osc_lru_shrink(struct client_obd *cli, int target) client_obd_list_unlock(&cli->cl_lru_list_lock); if (clobj) { - count -= discard_pagevec(env, io, pvec, index); + discard_pagevec(env, io, pvec, index); index = 0; cl_io_fini(env, io); @@ -625,98 +694,56 @@ int osc_lru_shrink(struct client_obd *cli, int target) continue; } - /* move this page to the end of list as it will be discarded - * soon. The page will be finally removed from LRU list in - * osc_page_delete(). - */ - list_move_tail(&opg->ops_lru, &cli->cl_lru_list); + if (cl_page_own_try(env, io, page) == 0) { + if (!cl_page_in_use_noref(page)) { + /* remove it from lru list earlier to avoid + * lock contention + */ + __osc_lru_del(cli, opg); + opg->ops_in_lru = 0; /* will be discarded */ + + cl_page_get(page); + will_free = true; + } else { + cl_page_disown(env, io, page); + } + } - /* it's okay to grab a refcount here w/o holding lock because - * it has to grab cl_lru_list_lock to delete the page. - */ - cl_page_get(page); - pvec[index++] = page; - if (++count >= target) - break; + if (!will_free) { + list_move_tail(&opg->ops_lru, &cli->cl_lru_list); + continue; + } + /* Don't discard and free the page with cl_lru_list held */ + pvec[index++] = page; if (unlikely(index == OTI_PVEC_SIZE)) { client_obd_list_unlock(&cli->cl_lru_list_lock); - count -= discard_pagevec(env, io, pvec, index); + discard_pagevec(env, io, pvec, index); index = 0; client_obd_list_lock(&cli->cl_lru_list_lock); } + + if (++count >= target) + break; } client_obd_list_unlock(&cli->cl_lru_list_lock); if (clobj) { - count -= discard_pagevec(env, io, pvec, index); + discard_pagevec(env, io, pvec, index); cl_io_fini(env, io); cl_object_put(env, clobj); } cl_env_nested_put(&nest, env); +out: atomic_dec(&cli->cl_lru_shrinkers); - return count > 0 ? count : rc; -} - -static void osc_lru_add(struct client_obd *cli, struct osc_page *opg) -{ - bool wakeup = false; - - if (!opg->ops_in_lru) - return; - - atomic_dec(&cli->cl_lru_busy); - client_obd_list_lock(&cli->cl_lru_list_lock); - if (list_empty(&opg->ops_lru)) { - list_move_tail(&opg->ops_lru, &cli->cl_lru_list); - atomic_inc_return(&cli->cl_lru_in_list); - wakeup = atomic_read(&osc_lru_waiters) > 0; - } - client_obd_list_unlock(&cli->cl_lru_list_lock); - - if (wakeup) { - osc_lru_shrink(cli, osc_cache_too_much(cli)); + if (count > 0) { + atomic_add(count, cli->cl_lru_left); wake_up_all(&osc_lru_waitq); } -} - -/* delete page from LRUlist. The page can be deleted from LRUlist for two - * reasons: redirtied or deleted from page cache. - */ -static void osc_lru_del(struct client_obd *cli, struct osc_page *opg, bool del) -{ - if (opg->ops_in_lru) { - client_obd_list_lock(&cli->cl_lru_list_lock); - if (!list_empty(&opg->ops_lru)) { - LASSERT(atomic_read(&cli->cl_lru_in_list) > 0); - list_del_init(&opg->ops_lru); - atomic_dec(&cli->cl_lru_in_list); - if (!del) - atomic_inc(&cli->cl_lru_busy); - } else if (del) { - LASSERT(atomic_read(&cli->cl_lru_busy) > 0); - atomic_dec(&cli->cl_lru_busy); - } - client_obd_list_unlock(&cli->cl_lru_list_lock); - if (del) { - atomic_inc(cli->cl_lru_left); - /* this is a great place to release more LRU pages if - * this osc occupies too many LRU pages and kernel is - * stealing one of them. - * cl_lru_shrinkers is to avoid recursive call in case - * we're already in the context of osc_lru_shrink(). - */ - if (atomic_read(&cli->cl_lru_shrinkers) == 0 && - !memory_pressure_get()) - osc_lru_shrink(cli, osc_cache_too_much(cli)); - wake_up(&osc_lru_waitq); - } - } else { - LASSERT(list_empty(&opg->ops_lru)); - } + return count > 0 ? count : rc; } static inline int max_to_shrink(struct client_obd *cli) @@ -724,16 +751,19 @@ static inline int max_to_shrink(struct client_obd *cli) return min(atomic_read(&cli->cl_lru_in_list) >> 1, lru_shrink_max); } -static int osc_lru_reclaim(struct client_obd *cli) +int osc_lru_reclaim(struct client_obd *cli) { struct cl_client_cache *cache = cli->cl_cache; int max_scans; - int rc; + int rc = 0; LASSERT(cache); - rc = osc_lru_shrink(cli, lru_shrink_min); + rc = osc_lru_shrink(cli, lru_shrink_min, false); if (rc != 0) { + if (rc == -EBUSY) + rc = 0; + CDEBUG(D_CACHE, "%s: Free %d pages from own LRU: %p.\n", cli->cl_import->imp_obd->obd_name, rc, cli); return rc; @@ -764,10 +794,10 @@ static int osc_lru_reclaim(struct client_obd *cli) atomic_read(&cli->cl_lru_busy)); list_move_tail(&cli->cl_lru_osc, &cache->ccc_lru); - if (atomic_read(&cli->cl_lru_in_list) > 0) { + if (osc_cache_too_much(cli) > 0) { spin_unlock(&cache->ccc_lru_lock); - rc = osc_lru_shrink(cli, max_to_shrink(cli)); + rc = osc_lru_shrink(cli, osc_cache_too_much(cli), true); spin_lock(&cache->ccc_lru_lock); if (rc != 0) break; @@ -784,15 +814,20 @@ static int osc_lru_reserve(const struct lu_env *env, struct osc_object *obj, struct osc_page *opg) { struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL); + struct osc_io *oio = osc_env_io(env); struct client_obd *cli = osc_cli(obj); int rc = 0; if (!cli->cl_cache) /* shall not be in LRU */ return 0; + if (oio->oi_lru_reserved > 0) { + --oio->oi_lru_reserved; + goto out; + } + LASSERT(atomic_read(cli->cl_lru_left) >= 0); while (!atomic_add_unless(cli->cl_lru_left, -1, 0)) { - int gen; /* run out of LRU spaces, try to drop some by itself */ rc = osc_lru_reclaim(cli); @@ -803,23 +838,15 @@ static int osc_lru_reserve(const struct lu_env *env, struct osc_object *obj, cond_resched(); - /* slowest case, all of caching pages are busy, notifying - * other OSCs that we're lack of LRU slots. - */ - atomic_inc(&osc_lru_waiters); - - gen = atomic_read(&cli->cl_lru_in_list); rc = l_wait_event(osc_lru_waitq, - atomic_read(cli->cl_lru_left) > 0 || - (atomic_read(&cli->cl_lru_in_list) > 0 && - gen != atomic_read(&cli->cl_lru_in_list)), + atomic_read(cli->cl_lru_left) > 0, &lwi); - atomic_dec(&osc_lru_waiters); if (rc < 0) break; } +out: if (rc >= 0) { atomic_inc(&cli->cl_lru_busy); opg->ops_in_lru = 1; diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 850d5dd..6dadda4 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -2910,7 +2910,7 @@ static int osc_set_info_async(const struct lu_env *env, struct obd_export *exp, int nr = atomic_read(&cli->cl_lru_in_list) >> 1; int target = *(int *)val; - nr = osc_lru_shrink(cli, min(nr, target)); + nr = osc_lru_shrink(cli, min(nr, target), true); *(int *)val -= nr; return 0; } -- cgit v0.10.2 From 2579d8d01759aae407d3645be5125f8dd436757c Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:27 -0400 Subject: staging/lustre/osc: to drop LRU pages with cl_lru_work This way we can drop it async. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/7891 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3321 Reviewed-by: Lai Siyao Reviewed-by: Bobi Jam Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index 4a0f2e8..26182ca 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -364,6 +364,7 @@ struct client_obd { /* ptlrpc work for writeback in ptlrpcd context */ void *cl_writeback_work; + void *cl_lru_work; /* hash tables for osc_quota_info */ struct cfs_hash *cl_quota_hash[MAXQUOTAS]; }; diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c index 45941a6..9e8e61a 100644 --- a/drivers/staging/lustre/lustre/llite/lproc_llite.c +++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c @@ -393,6 +393,8 @@ static ssize_t ll_max_cached_mb_seq_write(struct file *file, struct super_block *sb = ((struct seq_file *)file->private_data)->private; struct ll_sb_info *sbi = ll_s2sbi(sb); struct cl_client_cache *cache = &sbi->ll_cache; + struct lu_env *env; + int refcheck; int mult, rc, pages_number; int diff = 0; int nrpages = 0; @@ -430,6 +432,10 @@ static ssize_t ll_max_cached_mb_seq_write(struct file *file, goto out; } + env = cl_env_get(&refcheck); + if (IS_ERR(env)) + return 0; + diff = -diff; while (diff > 0) { int tmp; @@ -461,13 +467,14 @@ static ssize_t ll_max_cached_mb_seq_write(struct file *file, /* difficult - have to ask OSCs to drop LRU slots. */ tmp = diff << 1; - rc = obd_set_info_async(NULL, sbi->ll_dt_exp, + rc = obd_set_info_async(env, sbi->ll_dt_exp, sizeof(KEY_CACHE_LRU_SHRINK), KEY_CACHE_LRU_SHRINK, sizeof(tmp), &tmp, NULL); if (rc < 0) break; } + cl_env_put(env, &refcheck); out: if (rc >= 0) { diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c index 3eff12c..e6e2029 100644 --- a/drivers/staging/lustre/lustre/osc/lproc_osc.c +++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c @@ -222,8 +222,16 @@ static ssize_t osc_cached_mb_seq_write(struct file *file, return -ERANGE; rc = atomic_read(&cli->cl_lru_in_list) - pages_number; - if (rc > 0) - (void)osc_lru_shrink(cli, rc, true); + if (rc > 0) { + struct lu_env *env; + int refcheck; + + env = cl_env_get(&refcheck); + if (!IS_ERR(env)) { + (void)osc_lru_shrink(env, cli, rc, true); + cl_env_put(env, &refcheck); + } + } return count; } diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index f516848..b6325f5 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -457,6 +457,7 @@ int osc_cache_wait_range(const struct lu_env *env, struct osc_object *obj, pgoff_t start, pgoff_t end); void osc_io_unplug(const struct lu_env *env, struct client_obd *cli, struct osc_object *osc); +int lru_queue_work(const struct lu_env *env, void *data); void osc_object_set_contended (struct osc_object *obj); void osc_object_clear_contended(struct osc_object *obj); diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h index ec12962..b3b15d4 100644 --- a/drivers/staging/lustre/lustre/osc/osc_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_internal.h @@ -130,7 +130,8 @@ int osc_sync_base(struct obd_export *exp, struct obd_info *oinfo, int osc_process_config_base(struct obd_device *obd, struct lustre_cfg *cfg); int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, struct list_head *ext_list, int cmd); -int osc_lru_shrink(struct client_obd *cli, int target, bool force); +int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, + int target, bool force); int osc_lru_reclaim(struct client_obd *cli); extern spinlock_t osc_ast_guard; diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index a60b783..f0a9870 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -508,6 +508,18 @@ static int osc_cache_too_much(struct client_obd *cli) return 0; } +int lru_queue_work(const struct lu_env *env, void *data) +{ + struct client_obd *cli = data; + + CDEBUG(D_CACHE, "Run LRU work for client obd %p.\n", cli); + + if (osc_cache_too_much(cli)) + osc_lru_shrink(env, cli, lru_shrink_max, true); + + return 0; +} + void osc_lru_add_batch(struct client_obd *cli, struct list_head *plist) { LIST_HEAD(lru); @@ -533,7 +545,8 @@ void osc_lru_add_batch(struct client_obd *cli, struct list_head *plist) client_obd_list_unlock(&cli->cl_lru_list_lock); /* XXX: May set force to be true for better performance */ - osc_lru_shrink(cli, osc_cache_too_much(cli), false); + if (osc_cache_too_much(cli)) + (void)ptlrpcd_queue_work(cli->cl_lru_work); } } @@ -566,7 +579,7 @@ static void osc_lru_del(struct client_obd *cli, struct osc_page *opg) * stealing one of them. */ if (!memory_pressure_get()) - osc_lru_shrink(cli, osc_cache_too_much(cli), false); + (void)ptlrpcd_queue_work(cli->cl_lru_work); wake_up(&osc_lru_waitq); } else { LASSERT(list_empty(&opg->ops_lru)); @@ -610,10 +623,9 @@ static void discard_pagevec(const struct lu_env *env, struct cl_io *io, /** * Drop @target of pages from LRU at most. */ -int osc_lru_shrink(struct client_obd *cli, int target, bool force) +int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, + int target, bool force) { - struct cl_env_nest nest; - struct lu_env *env; struct cl_io *io; struct cl_object *clobj = NULL; struct cl_page **pvec; @@ -640,12 +652,6 @@ int osc_lru_shrink(struct client_obd *cli, int target, bool force) atomic_inc(&cli->cl_lru_shrinkers); } - env = cl_env_nested_get(&nest); - if (IS_ERR(env)) { - rc = PTR_ERR(env); - goto out; - } - pvec = osc_env_info(env)->oti_pvec; io = &osc_env_info(env)->oti_io; @@ -735,9 +741,7 @@ int osc_lru_shrink(struct client_obd *cli, int target, bool force) cl_io_fini(env, io); cl_object_put(env, clobj); } - cl_env_nested_put(&nest, env); -out: atomic_dec(&cli->cl_lru_shrinkers); if (count > 0) { atomic_add(count, cli->cl_lru_left); @@ -753,20 +757,26 @@ static inline int max_to_shrink(struct client_obd *cli) int osc_lru_reclaim(struct client_obd *cli) { + struct cl_env_nest nest; + struct lu_env *env; struct cl_client_cache *cache = cli->cl_cache; int max_scans; int rc = 0; LASSERT(cache); - rc = osc_lru_shrink(cli, lru_shrink_min, false); + env = cl_env_nested_get(&nest); + if (IS_ERR(env)) + return 0; + + rc = osc_lru_shrink(env, cli, osc_cache_too_much(cli), false); if (rc != 0) { if (rc == -EBUSY) rc = 0; CDEBUG(D_CACHE, "%s: Free %d pages from own LRU: %p.\n", cli->cl_import->imp_obd->obd_name, rc, cli); - return rc; + goto out; } CDEBUG(D_CACHE, "%s: cli %p no free slots, pages: %d, busy: %d.\n", @@ -797,7 +807,8 @@ int osc_lru_reclaim(struct client_obd *cli) if (osc_cache_too_much(cli) > 0) { spin_unlock(&cache->ccc_lru_lock); - rc = osc_lru_shrink(cli, osc_cache_too_much(cli), true); + rc = osc_lru_shrink(env, cli, osc_cache_too_much(cli), + true); spin_lock(&cache->ccc_lru_lock); if (rc != 0) break; @@ -805,6 +816,8 @@ int osc_lru_reclaim(struct client_obd *cli) } spin_unlock(&cache->ccc_lru_lock); +out: + cl_env_nested_put(&nest, env); CDEBUG(D_CACHE, "%s: cli %p freed %d pages.\n", cli->cl_import->imp_obd->obd_name, cli, rc); return rc; diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 6dadda4..c055511b3 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -2910,7 +2910,7 @@ static int osc_set_info_async(const struct lu_env *env, struct obd_export *exp, int nr = atomic_read(&cli->cl_lru_in_list) >> 1; int target = *(int *)val; - nr = osc_lru_shrink(cli, min(nr, target), true); + nr = osc_lru_shrink(env, cli, min(nr, target), true); *(int *)val -= nr; return 0; } @@ -3167,6 +3167,14 @@ int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg) } cli->cl_writeback_work = handler; + handler = ptlrpcd_alloc_work(cli->cl_import, lru_queue_work, cli); + if (IS_ERR(handler)) { + rc = PTR_ERR(handler); + goto out_ptlrpcd_work; + } + + cli->cl_lru_work = handler; + rc = osc_quota_setup(obd); if (rc) goto out_ptlrpcd_work; @@ -3199,7 +3207,14 @@ int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg) return rc; out_ptlrpcd_work: - ptlrpcd_destroy_work(handler); + if (cli->cl_writeback_work) { + ptlrpcd_destroy_work(cli->cl_writeback_work); + cli->cl_writeback_work = NULL; + } + if (cli->cl_lru_work) { + ptlrpcd_destroy_work(cli->cl_lru_work); + cli->cl_lru_work = NULL; + } out_client_setup: client_obd_cleanup(obd); out_ptlrpcd: @@ -3238,6 +3253,10 @@ static int osc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage) ptlrpcd_destroy_work(cli->cl_writeback_work); cli->cl_writeback_work = NULL; } + if (cli->cl_lru_work) { + ptlrpcd_destroy_work(cli->cl_lru_work); + cli->cl_lru_work = NULL; + } obd_cleanup_client_import(obd); ptlrpc_lprocfs_unregister_obd(obd); lprocfs_obd_cleanup(obd); diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c index db003f5..dbc3376 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c +++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c @@ -387,7 +387,8 @@ static int ptlrpcd(void *arg) { struct ptlrpcd_ctl *pc = arg; struct ptlrpc_request_set *set; - struct lu_env env = { .le_ses = NULL }; + struct lu_context ses = { 0 }; + struct lu_env env = { .le_ses = &ses }; int rc = 0; int exit = 0; @@ -416,6 +417,13 @@ static int ptlrpcd(void *arg) */ rc = lu_context_init(&env.le_ctx, LCT_CL_THREAD|LCT_REMEMBER|LCT_NOREF); + if (rc == 0) { + rc = lu_context_init(env.le_ses, + LCT_SESSION | LCT_REMEMBER | LCT_NOREF); + if (rc != 0) + lu_context_fini(&env.le_ctx); + } + if (rc != 0) goto failed; @@ -436,9 +444,10 @@ static int ptlrpcd(void *arg) ptlrpc_expired_set, set); lu_context_enter(&env.le_ctx); - l_wait_event(set->set_waitq, - ptlrpcd_check(&env, pc), &lwi); + lu_context_enter(env.le_ses); + l_wait_event(set->set_waitq, ptlrpcd_check(&env, pc), &lwi); lu_context_exit(&env.le_ctx); + lu_context_exit(env.le_ses); /* * Abort inflight rpcs for forced stop case. @@ -461,6 +470,7 @@ static int ptlrpcd(void *arg) if (!list_empty(&set->set_requests)) ptlrpc_set_wait(set); lu_context_fini(&env.le_ctx); + lu_context_fini(env.le_ses); complete(&pc->pc_finishing); -- cgit v0.10.2 From d9d47901dfbec3f7e057c4d31ecbe39c8eaec991 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:28 -0400 Subject: staging/lustre/clio: collapse layer of cl_page Move radix tree to osc layer to for performance improvement. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/7892 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3321 Reviewed-by: Lai Siyao Reviewed-by: Bobi Jam Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index e611f79..5daf688 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -388,6 +388,12 @@ struct cl_object_operations { */ int (*coo_glimpse)(const struct lu_env *env, const struct cl_object *obj, struct ost_lvb *lvb); + /** + * Object prune method. Called when the layout is going to change on + * this object, therefore each layer has to clean up their cache, + * mainly pages and locks. + */ + int (*coo_prune)(const struct lu_env *env, struct cl_object *obj); }; /** @@ -403,15 +409,9 @@ struct cl_object_header { * mostly useless otherwise. */ /** @{ */ - /** Lock protecting page tree. */ - spinlock_t coh_page_guard; /** Lock protecting lock list. */ spinlock_t coh_lock_guard; /** @} locks */ - /** Radix tree of cl_page's, cached for this object. */ - struct radix_tree_root coh_tree; - /** # of pages in radix tree. */ - unsigned long coh_pages; /** List of cl_lock's granted for this object. */ struct list_head coh_locks; @@ -897,14 +897,6 @@ struct cl_page_operations { void (*cpo_export)(const struct lu_env *env, const struct cl_page_slice *slice, int uptodate); /** - * Unmaps page from the user space (if it is mapped). - * - * \see cl_page_unmap() - * \see vvp_page_unmap() - */ - int (*cpo_unmap)(const struct lu_env *env, - const struct cl_page_slice *slice, struct cl_io *io); - /** * Checks whether underlying VM page is locked (in the suitable * sense). Used for assertions. * @@ -2794,19 +2786,13 @@ enum { }; /* callback of cl_page_gang_lookup() */ -typedef int (*cl_page_gang_cb_t) (const struct lu_env *, struct cl_io *, - struct cl_page *, void *); -int cl_page_gang_lookup(const struct lu_env *env, struct cl_object *obj, - struct cl_io *io, pgoff_t start, pgoff_t end, - cl_page_gang_cb_t cb, void *cbdata); -struct cl_page *cl_page_lookup(struct cl_object_header *hdr, pgoff_t index); struct cl_page *cl_page_find(const struct lu_env *env, struct cl_object *obj, pgoff_t idx, struct page *vmpage, enum cl_page_type type); -struct cl_page *cl_page_find_sub(const struct lu_env *env, - struct cl_object *obj, - pgoff_t idx, struct page *vmpage, - struct cl_page *parent); +struct cl_page *cl_page_alloc(const struct lu_env *env, + struct cl_object *o, pgoff_t ind, + struct page *vmpage, + enum cl_page_type type); void cl_page_get(struct cl_page *page); void cl_page_put(const struct lu_env *env, struct cl_page *page); void cl_page_print(const struct lu_env *env, void *cookie, lu_printer_t printer, @@ -2872,8 +2858,6 @@ int cl_page_flush(const struct lu_env *env, struct cl_io *io, void cl_page_discard(const struct lu_env *env, struct cl_io *io, struct cl_page *pg); void cl_page_delete(const struct lu_env *env, struct cl_page *pg); -int cl_page_unmap(const struct lu_env *env, struct cl_io *io, - struct cl_page *pg); int cl_page_is_vmlocked(const struct lu_env *env, const struct cl_page *pg); void cl_page_export(const struct lu_env *env, struct cl_page *pg, int uptodate); int cl_page_is_under_lock(const struct lu_env *env, struct cl_io *io, diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index 34614ac..01b8365 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -442,7 +442,7 @@ static int cl_read_ahead_page(const struct lu_env *env, struct cl_io *io, cl_page_list_add(queue, page); rc = 1; } else { - cl_page_delete(env, page); + cl_page_discard(env, io, page); rc = -ENOLCK; } } else { diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index 3d7e64e..b5335de 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -95,11 +95,7 @@ static void ll_invalidatepage(struct page *vmpage, unsigned int offset, if (obj) { page = cl_vmpage_page(vmpage, obj); if (page) { - lu_ref_add(&page->cp_reference, - "delete", vmpage); cl_page_delete(env, page); - lu_ref_del(&page->cp_reference, - "delete", vmpage); cl_page_put(env, page); } } else diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 282b70b..29d24c9 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -36,6 +36,7 @@ * cl_device and cl_device_type implementation for VVP layer. * * Author: Nikita Danilov + * Author: Jinshan Xiong */ #define DEBUG_SUBSYSTEM S_LLITE @@ -356,23 +357,18 @@ static loff_t vvp_pgcache_find(const struct lu_env *env, return ~0ULL; clob = vvp_pgcache_obj(env, dev, &id); if (clob) { - struct cl_object_header *hdr; - int nr; - struct cl_page *pg; + struct inode *inode = ccc_object_inode(clob); + struct page *vmpage; + int nr; - /* got an object. Find next page. */ - hdr = cl_object_header(clob); - - spin_lock(&hdr->coh_page_guard); - nr = radix_tree_gang_lookup(&hdr->coh_tree, - (void **)&pg, - id.vpi_index, 1); + nr = find_get_pages_contig(inode->i_mapping, + id.vpi_index, 1, &vmpage); if (nr > 0) { - id.vpi_index = pg->cp_index; + id.vpi_index = vmpage->index; /* Cant support over 16T file */ - nr = !(pg->cp_index > 0xffffffff); + nr = !(vmpage->index > 0xffffffff); + page_cache_release(vmpage); } - spin_unlock(&hdr->coh_page_guard); lu_object_ref_del(&clob->co_lu, "dump", current); cl_object_put(env, clob); @@ -431,8 +427,6 @@ static int vvp_pgcache_show(struct seq_file *f, void *v) struct ll_sb_info *sbi; struct cl_object *clob; struct lu_env *env; - struct cl_page *page; - struct cl_object_header *hdr; struct vvp_pgcache_id id; int refcheck; int result; @@ -444,14 +438,23 @@ static int vvp_pgcache_show(struct seq_file *f, void *v) sbi = f->private; clob = vvp_pgcache_obj(env, &sbi->ll_cl->cd_lu_dev, &id); if (clob) { - hdr = cl_object_header(clob); - - spin_lock(&hdr->coh_page_guard); - page = cl_page_lookup(hdr, id.vpi_index); - spin_unlock(&hdr->coh_page_guard); + struct inode *inode = ccc_object_inode(clob); + struct cl_page *page = NULL; + struct page *vmpage; + + result = find_get_pages_contig(inode->i_mapping, + id.vpi_index, 1, + &vmpage); + if (result > 0) { + lock_page(vmpage); + page = cl_vmpage_page(vmpage, clob); + unlock_page(vmpage); + + page_cache_release(vmpage); + } - seq_printf(f, "%8x@"DFID": ", - id.vpi_index, PFID(&hdr->coh_lu.loh_fid)); + seq_printf(f, "%8x@" DFID ": ", id.vpi_index, + PFID(lu_object_fid(&clob->co_lu))); if (page) { vvp_pgcache_page_show(env, f, page); cl_page_put(env, page); diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 984699a..ffe301b 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -763,7 +763,6 @@ static int vvp_io_fault_start(const struct lu_env *env, vmpage = NULL; if (result < 0) { - cl_page_unmap(env, io, page); cl_page_discard(env, io, page); cl_page_disown(env, io, page); diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c index 03c887d..b9a1d01 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_object.c +++ b/drivers/staging/lustre/lustre/llite/vvp_object.c @@ -165,6 +165,18 @@ static int vvp_conf_set(const struct lu_env *env, struct cl_object *obj, return 0; } +static int vvp_prune(const struct lu_env *env, struct cl_object *obj) +{ + struct inode *inode = ccc_object_inode(obj); + int rc; + + rc = cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, CL_FSYNC_ALL, 1); + if (rc == 0) + truncate_inode_pages(inode->i_mapping, 0); + + return rc; +} + static const struct cl_object_operations vvp_ops = { .coo_page_init = vvp_page_init, .coo_lock_init = vvp_lock_init, @@ -172,6 +184,7 @@ static const struct cl_object_operations vvp_ops = { .coo_attr_get = vvp_attr_get, .coo_attr_set = vvp_attr_set, .coo_conf_set = vvp_conf_set, + .coo_prune = vvp_prune, .coo_glimpse = ccc_object_glimpse }; diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c index 850bae7..11e609e 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_page.c +++ b/drivers/staging/lustre/lustre/llite/vvp_page.c @@ -138,6 +138,7 @@ static void vvp_page_discard(const struct lu_env *env, struct page *vmpage = cl2vm_page(slice); struct address_space *mapping; struct ccc_page *cpg = cl2ccc_page(slice); + __u64 offset; LASSERT(vmpage); LASSERT(PageLocked(vmpage)); @@ -147,6 +148,9 @@ static void vvp_page_discard(const struct lu_env *env, if (cpg->cpg_defer_uptodate && !cpg->cpg_ra_used) ll_ra_stats_inc(mapping, RA_STAT_DISCARDED); + offset = vmpage->index << PAGE_SHIFT; + ll_teardown_mmaps(vmpage->mapping, offset, offset + PAGE_SIZE); + /* * truncate_complete_page() calls * a_ops->invalidatepage()->cl_page_delete()->vvp_page_delete(). @@ -154,37 +158,26 @@ static void vvp_page_discard(const struct lu_env *env, truncate_complete_page(mapping, vmpage); } -static int vvp_page_unmap(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *unused) -{ - struct page *vmpage = cl2vm_page(slice); - __u64 offset; - - LASSERT(vmpage); - LASSERT(PageLocked(vmpage)); - - offset = vmpage->index << PAGE_CACHE_SHIFT; - - /* - * XXX is it safe to call this with the page lock held? - */ - ll_teardown_mmaps(vmpage->mapping, offset, offset + PAGE_CACHE_SIZE); - return 0; -} - static void vvp_page_delete(const struct lu_env *env, const struct cl_page_slice *slice) { struct page *vmpage = cl2vm_page(slice); struct inode *inode = vmpage->mapping->host; struct cl_object *obj = slice->cpl_obj; + struct cl_page *page = slice->cpl_page; + int refc; LASSERT(PageLocked(vmpage)); - LASSERT((struct cl_page *)vmpage->private == slice->cpl_page); + LASSERT((struct cl_page *)vmpage->private == page); LASSERT(inode == ccc_object_inode(obj)); vvp_write_complete(cl2ccc(obj), cl2ccc_page(slice)); + + /* Drop the reference count held in vvp_page_init */ + refc = atomic_dec_return(&page->cp_ref); + LASSERTF(refc >= 1, "page = %p, refc = %d\n", page, refc); + + ClearPageUptodate(vmpage); ClearPagePrivate(vmpage); vmpage->private = 0; /* @@ -404,7 +397,6 @@ static const struct cl_page_operations vvp_page_ops = { .cpo_vmpage = ccc_page_vmpage, .cpo_discard = vvp_page_discard, .cpo_delete = vvp_page_delete, - .cpo_unmap = vvp_page_unmap, .cpo_export = vvp_page_export, .cpo_is_vmlocked = vvp_page_is_vmlocked, .cpo_fini = vvp_page_fini, @@ -541,6 +533,8 @@ int vvp_page_init(const struct lu_env *env, struct cl_object *obj, INIT_LIST_HEAD(&cpg->cpg_pending_linkage); if (page->cp_type == CPT_CACHEABLE) { + /* in cache, decref in vvp_page_delete */ + atomic_inc(&page->cp_ref); SetPagePrivate(vmpage); vmpage->private = (unsigned long)page; cl_page_slice_add(page, &cpg->cpg_cl, obj, &vvp_page_ops); diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c index 1f8ed95..5d8a2b6 100644 --- a/drivers/staging/lustre/lustre/lov/lov_object.c +++ b/drivers/staging/lustre/lustre/lov/lov_object.c @@ -287,7 +287,7 @@ static int lov_delete_empty(const struct lu_env *env, struct lov_object *lov, lov_layout_wait(env, lov); - cl_object_prune(env, &lov->lo_cl); + cl_locks_prune(env, &lov->lo_cl, 0); return 0; } @@ -364,7 +364,7 @@ static int lov_delete_raid0(const struct lu_env *env, struct lov_object *lov, } } } - cl_object_prune(env, &lov->lo_cl); + cl_locks_prune(env, &lov->lo_cl, 0); return 0; } @@ -666,7 +666,6 @@ static int lov_layout_change(const struct lu_env *unused, const struct lov_layout_operations *old_ops; const struct lov_layout_operations *new_ops; - struct cl_object_header *hdr = cl_object_header(&lov->lo_cl); void *cookie; struct lu_env *env; int refcheck; @@ -691,13 +690,13 @@ static int lov_layout_change(const struct lu_env *unused, old_ops = &lov_dispatch[lov->lo_type]; new_ops = &lov_dispatch[llt]; + cl_object_prune(env, &lov->lo_cl); + result = old_ops->llo_delete(env, lov, &lov->u); if (result == 0) { old_ops->llo_fini(env, lov, &lov->u); LASSERT(atomic_read(&lov->lo_active_ios) == 0); - LASSERT(!hdr->coh_tree.rnode); - LASSERT(hdr->coh_pages == 0); lov->lo_type = LLT_EMPTY; result = new_ops->llo_init(env, diff --git a/drivers/staging/lustre/lustre/lov/lov_page.c b/drivers/staging/lustre/lustre/lov/lov_page.c index fdcaf80..9728da2 100644 --- a/drivers/staging/lustre/lustre/lov/lov_page.c +++ b/drivers/staging/lustre/lustre/lov/lov_page.c @@ -36,6 +36,7 @@ * Implementation of cl_page for LOV layer. * * Author: Nikita Danilov + * Author: Jinshan Xiong */ #define DEBUG_SUBSYSTEM S_LOV @@ -179,31 +180,21 @@ int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj, cl_page_slice_add(page, &lpg->lps_cl, obj, &lov_page_ops); sub = lov_sub_get(env, lio, stripe); - if (IS_ERR(sub)) { - rc = PTR_ERR(sub); - goto out; - } + if (IS_ERR(sub)) + return PTR_ERR(sub); subobj = lovsub2cl(r0->lo_sub[stripe]); - subpage = cl_page_find_sub(sub->sub_env, subobj, - cl_index(subobj, suboff), vmpage, page); - lov_sub_put(sub); - if (IS_ERR(subpage)) { - rc = PTR_ERR(subpage); - goto out; - } - - if (likely(subpage->cp_parent == page)) { - lu_ref_add(&subpage->cp_reference, "lov", page); + subpage = cl_page_alloc(sub->sub_env, subobj, cl_index(subobj, suboff), + vmpage, page->cp_type); + if (!IS_ERR(subpage)) { + subpage->cp_parent = page; + page->cp_child = subpage; lpg->lps_invalid = 0; - rc = 0; } else { - CL_PAGE_DEBUG(D_ERROR, env, page, "parent page\n"); - CL_PAGE_DEBUG(D_ERROR, env, subpage, "child page\n"); - LASSERT(0); + rc = PTR_ERR(subpage); } + lov_sub_put(sub); -out: return rc; } diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c index f5128b4..cf94284 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_io.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c @@ -36,6 +36,7 @@ * Client IO. * * Author: Nikita Danilov + * Author: Jinshan Xiong */ #define DEBUG_SUBSYSTEM S_CLASS diff --git a/drivers/staging/lustre/lustre/obdclass/cl_lock.c b/drivers/staging/lustre/lustre/obdclass/cl_lock.c index f952c1c..32ecc5a 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_lock.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_lock.c @@ -36,6 +36,7 @@ * Client Extent Lock. * * Author: Nikita Danilov + * Author: Jinshan Xiong */ #define DEBUG_SUBSYSTEM S_CLASS @@ -1816,128 +1817,6 @@ struct cl_lock *cl_lock_at_pgoff(const struct lu_env *env, EXPORT_SYMBOL(cl_lock_at_pgoff); /** - * Calculate the page offset at the layer of @lock. - * At the time of this writing, @page is top page and @lock is sub lock. - */ -static pgoff_t pgoff_at_lock(struct cl_page *page, struct cl_lock *lock) -{ - struct lu_device_type *dtype; - const struct cl_page_slice *slice; - - dtype = lock->cll_descr.cld_obj->co_lu.lo_dev->ld_type; - slice = cl_page_at(page, dtype); - return slice->cpl_page->cp_index; -} - -/** - * Check if page @page is covered by an extra lock or discard it. - */ -static int check_and_discard_cb(const struct lu_env *env, struct cl_io *io, - struct cl_page *page, void *cbdata) -{ - struct cl_thread_info *info = cl_env_info(env); - struct cl_lock *lock = cbdata; - pgoff_t index = pgoff_at_lock(page, lock); - - if (index >= info->clt_fn_index) { - struct cl_lock *tmp; - - /* refresh non-overlapped index */ - tmp = cl_lock_at_pgoff(env, lock->cll_descr.cld_obj, index, - lock, 1, 0); - if (tmp) { - /* Cache the first-non-overlapped index so as to skip - * all pages within [index, clt_fn_index). This - * is safe because if tmp lock is canceled, it will - * discard these pages. - */ - info->clt_fn_index = tmp->cll_descr.cld_end + 1; - if (tmp->cll_descr.cld_end == CL_PAGE_EOF) - info->clt_fn_index = CL_PAGE_EOF; - cl_lock_put(env, tmp); - } else if (cl_page_own(env, io, page) == 0) { - /* discard the page */ - cl_page_unmap(env, io, page); - cl_page_discard(env, io, page); - cl_page_disown(env, io, page); - } else { - LASSERT(page->cp_state == CPS_FREEING); - } - } - - info->clt_next_index = index + 1; - return CLP_GANG_OKAY; -} - -static int discard_cb(const struct lu_env *env, struct cl_io *io, - struct cl_page *page, void *cbdata) -{ - struct cl_thread_info *info = cl_env_info(env); - struct cl_lock *lock = cbdata; - - LASSERT(lock->cll_descr.cld_mode >= CLM_WRITE); - KLASSERT(ergo(page->cp_type == CPT_CACHEABLE, - !PageWriteback(cl_page_vmpage(env, page)))); - KLASSERT(ergo(page->cp_type == CPT_CACHEABLE, - !PageDirty(cl_page_vmpage(env, page)))); - - info->clt_next_index = pgoff_at_lock(page, lock) + 1; - if (cl_page_own(env, io, page) == 0) { - /* discard the page */ - cl_page_unmap(env, io, page); - cl_page_discard(env, io, page); - cl_page_disown(env, io, page); - } else { - LASSERT(page->cp_state == CPS_FREEING); - } - - return CLP_GANG_OKAY; -} - -/** - * Discard pages protected by the given lock. This function traverses radix - * tree to find all covering pages and discard them. If a page is being covered - * by other locks, it should remain in cache. - * - * If error happens on any step, the process continues anyway (the reasoning - * behind this being that lock cancellation cannot be delayed indefinitely). - */ -int cl_lock_discard_pages(const struct lu_env *env, struct cl_lock *lock) -{ - struct cl_thread_info *info = cl_env_info(env); - struct cl_io *io = &info->clt_io; - struct cl_lock_descr *descr = &lock->cll_descr; - cl_page_gang_cb_t cb; - int res; - int result; - - LINVRNT(cl_lock_invariant(env, lock)); - - io->ci_obj = cl_object_top(descr->cld_obj); - io->ci_ignore_layout = 1; - result = cl_io_init(env, io, CIT_MISC, io->ci_obj); - if (result != 0) - goto out; - - cb = descr->cld_mode == CLM_READ ? check_and_discard_cb : discard_cb; - info->clt_fn_index = info->clt_next_index = descr->cld_start; - do { - res = cl_page_gang_lookup(env, descr->cld_obj, io, - info->clt_next_index, descr->cld_end, - cb, (void *)lock); - if (info->clt_next_index > descr->cld_end) - break; - - if (res == CLP_GANG_RESCHED) - cond_resched(); - } while (res != CLP_GANG_OKAY); -out: - cl_io_fini(env, io); - return result; -} -EXPORT_SYMBOL(cl_lock_discard_pages); - -/** * Eliminate all locks for a given object. * * Caller has to guarantee that no lock is in active use. @@ -1951,12 +1830,6 @@ void cl_locks_prune(const struct lu_env *env, struct cl_object *obj, int cancel) struct cl_lock *lock; head = cl_object_header(obj); - /* - * If locks are destroyed without cancellation, all pages must be - * already destroyed (as otherwise they will be left unprotected). - */ - LASSERT(ergo(!cancel, - !head->coh_tree.rnode && head->coh_pages == 0)); spin_lock(&head->coh_lock_guard); while (!list_empty(&head->coh_locks)) { @@ -2095,8 +1968,8 @@ void cl_lock_hold_add(const struct lu_env *env, struct cl_lock *lock, LINVRNT(cl_lock_invariant(env, lock)); LASSERT(lock->cll_state != CLS_FREEING); - cl_lock_hold_mod(env, lock, 1); cl_lock_get(lock); + cl_lock_hold_mod(env, lock, 1); lu_ref_add(&lock->cll_holders, scope, source); lu_ref_add(&lock->cll_reference, scope, source); } diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c index 0772706..65b6402 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c @@ -36,6 +36,7 @@ * Client Lustre Object. * * Author: Nikita Danilov + * Author: Jinshan Xiong */ /* @@ -43,7 +44,6 @@ * * i_mutex * PG_locked - * ->coh_page_guard * ->coh_lock_guard * ->coh_attr_guard * ->ls_guard @@ -63,8 +63,6 @@ static struct kmem_cache *cl_env_kmem; -/** Lock class of cl_object_header::coh_page_guard */ -static struct lock_class_key cl_page_guard_class; /** Lock class of cl_object_header::coh_lock_guard */ static struct lock_class_key cl_lock_guard_class; /** Lock class of cl_object_header::coh_attr_guard */ @@ -81,15 +79,10 @@ int cl_object_header_init(struct cl_object_header *h) result = lu_object_header_init(&h->coh_lu); if (result == 0) { - spin_lock_init(&h->coh_page_guard); spin_lock_init(&h->coh_lock_guard); spin_lock_init(&h->coh_attr_guard); - lockdep_set_class(&h->coh_page_guard, &cl_page_guard_class); lockdep_set_class(&h->coh_lock_guard, &cl_lock_guard_class); lockdep_set_class(&h->coh_attr_guard, &cl_attr_guard_class); - h->coh_pages = 0; - /* XXX hard coded GFP_* mask. */ - INIT_RADIX_TREE(&h->coh_tree, GFP_ATOMIC); INIT_LIST_HEAD(&h->coh_locks); h->coh_page_bufsize = ALIGN(sizeof(struct cl_page), 8); } @@ -315,6 +308,32 @@ int cl_conf_set(const struct lu_env *env, struct cl_object *obj, EXPORT_SYMBOL(cl_conf_set); /** + * Prunes caches of pages and locks for this object. + */ +void cl_object_prune(const struct lu_env *env, struct cl_object *obj) +{ + struct lu_object_header *top; + struct cl_object *o; + int result; + + top = obj->co_lu.lo_header; + result = 0; + list_for_each_entry(o, &top->loh_layers, co_lu.lo_linkage) { + if (o->co_ops->coo_prune) { + result = o->co_ops->coo_prune(env, o); + if (result != 0) + break; + } + } + + /* TODO: pruning locks will be moved into layers after cl_lock + * simplification is done + */ + cl_locks_prune(env, obj, 1); +} +EXPORT_SYMBOL(cl_object_prune); + +/** * Helper function removing all object locks, and marking object for * deletion. All object pages must have been deleted at this point. * @@ -326,8 +345,6 @@ void cl_object_kill(const struct lu_env *env, struct cl_object *obj) struct cl_object_header *hdr; hdr = cl_object_header(obj); - LASSERT(!hdr->coh_tree.rnode); - LASSERT(hdr->coh_pages == 0); set_bit(LU_OBJECT_HEARD_BANSHEE, &hdr->coh_lu.loh_flags); /* @@ -341,16 +358,6 @@ void cl_object_kill(const struct lu_env *env, struct cl_object *obj) } EXPORT_SYMBOL(cl_object_kill); -/** - * Prunes caches of pages and locks for this object. - */ -void cl_object_prune(const struct lu_env *env, struct cl_object *obj) -{ - cl_pages_prune(env, obj); - cl_locks_prune(env, obj, 1); -} -EXPORT_SYMBOL(cl_object_prune); - void cache_stats_init(struct cache_stats *cs, const char *name) { int i; diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c index 231a2f2..8169836 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c @@ -36,6 +36,7 @@ * Client Lustre Page. * * Author: Nikita Danilov + * Author: Jinshan Xiong */ #define DEBUG_SUBSYSTEM S_CLASS @@ -48,8 +49,7 @@ #include "../include/cl_object.h" #include "cl_internal.h" -static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg, - int radix); +static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg); # define PASSERT(env, page, expr) \ do { \ @@ -79,8 +79,7 @@ static struct cl_page *cl_page_top_trusted(struct cl_page *page) * * This function can be used to obtain initial reference to previously * unreferenced cached object. It can be called only if concurrent page - * reclamation is somehow prevented, e.g., by locking page radix-tree - * (cl_object_header::hdr->coh_page_guard), or by keeping a lock on a VM page, + * reclamation is somehow prevented, e.g., by keeping a lock on a VM page, * associated with \a page. * * Use with care! Not exported. @@ -114,132 +113,6 @@ cl_page_at_trusted(const struct cl_page *page, return NULL; } -/** - * Returns a page with given index in the given object, or NULL if no page is - * found. Acquires a reference on \a page. - * - * Locking: called under cl_object_header::coh_page_guard spin-lock. - */ -struct cl_page *cl_page_lookup(struct cl_object_header *hdr, pgoff_t index) -{ - struct cl_page *page; - - assert_spin_locked(&hdr->coh_page_guard); - - page = radix_tree_lookup(&hdr->coh_tree, index); - if (page) - cl_page_get_trust(page); - return page; -} -EXPORT_SYMBOL(cl_page_lookup); - -/** - * Returns a list of pages by a given [start, end] of \a obj. - * - * \param resched If not NULL, then we give up before hogging CPU for too - * long and set *resched = 1, in that case caller should implement a retry - * logic. - * - * Gang tree lookup (radix_tree_gang_lookup()) optimization is absolutely - * crucial in the face of [offset, EOF] locks. - * - * Return at least one page in @queue unless there is no covered page. - */ -int cl_page_gang_lookup(const struct lu_env *env, struct cl_object *obj, - struct cl_io *io, pgoff_t start, pgoff_t end, - cl_page_gang_cb_t cb, void *cbdata) -{ - struct cl_object_header *hdr; - struct cl_page *page; - struct cl_page **pvec; - const struct cl_page_slice *slice; - const struct lu_device_type *dtype; - pgoff_t idx; - unsigned int nr; - unsigned int i; - unsigned int j; - int res = CLP_GANG_OKAY; - int tree_lock = 1; - - idx = start; - hdr = cl_object_header(obj); - pvec = cl_env_info(env)->clt_pvec; - dtype = cl_object_top(obj)->co_lu.lo_dev->ld_type; - spin_lock(&hdr->coh_page_guard); - while ((nr = radix_tree_gang_lookup(&hdr->coh_tree, (void **)pvec, - idx, CLT_PVEC_SIZE)) > 0) { - int end_of_region = 0; - - idx = pvec[nr - 1]->cp_index + 1; - for (i = 0, j = 0; i < nr; ++i) { - page = pvec[i]; - pvec[i] = NULL; - - LASSERT(page->cp_type == CPT_CACHEABLE); - if (page->cp_index > end) { - end_of_region = 1; - break; - } - if (page->cp_state == CPS_FREEING) - continue; - - slice = cl_page_at_trusted(page, dtype); - /* - * Pages for lsm-less file has no underneath sub-page - * for osc, in case of ... - */ - PASSERT(env, page, slice); - - page = slice->cpl_page; - /* - * Can safely call cl_page_get_trust() under - * radix-tree spin-lock. - * - * XXX not true, because @page is from object another - * than @hdr and protected by different tree lock. - */ - cl_page_get_trust(page); - lu_ref_add_atomic(&page->cp_reference, - "gang_lookup", current); - pvec[j++] = page; - } - - /* - * Here a delicate locking dance is performed. Current thread - * holds a reference to a page, but has to own it before it - * can be placed into queue. Owning implies waiting, so - * radix-tree lock is to be released. After a wait one has to - * check that pages weren't truncated (cl_page_own() returns - * error in the latter case). - */ - spin_unlock(&hdr->coh_page_guard); - tree_lock = 0; - - for (i = 0; i < j; ++i) { - page = pvec[i]; - if (res == CLP_GANG_OKAY) - res = (*cb)(env, io, page, cbdata); - lu_ref_del(&page->cp_reference, - "gang_lookup", current); - cl_page_put(env, page); - } - if (nr < CLT_PVEC_SIZE || end_of_region) - break; - - if (res == CLP_GANG_OKAY && need_resched()) - res = CLP_GANG_RESCHED; - if (res != CLP_GANG_OKAY) - break; - - spin_lock(&hdr->coh_page_guard); - tree_lock = 1; - } - if (tree_lock) - spin_unlock(&hdr->coh_page_guard); - return res; -} -EXPORT_SYMBOL(cl_page_gang_lookup); - static void cl_page_free(const struct lu_env *env, struct cl_page *page) { struct cl_object *obj = page->cp_obj; @@ -276,10 +149,10 @@ static inline void cl_page_state_set_trust(struct cl_page *page, *(enum cl_page_state *)&page->cp_state = state; } -static struct cl_page *cl_page_alloc(const struct lu_env *env, - struct cl_object *o, pgoff_t ind, - struct page *vmpage, - enum cl_page_type type) +struct cl_page *cl_page_alloc(const struct lu_env *env, + struct cl_object *o, pgoff_t ind, + struct page *vmpage, + enum cl_page_type type) { struct cl_page *page; struct lu_object_header *head; @@ -289,8 +162,6 @@ static struct cl_page *cl_page_alloc(const struct lu_env *env, int result = 0; atomic_set(&page->cp_ref, 1); - if (type == CPT_CACHEABLE) /* for radix tree */ - atomic_inc(&page->cp_ref); page->cp_obj = o; cl_object_get(o); lu_object_ref_add_at(&o->co_lu, &page->cp_obj_ref, "cl_page", @@ -309,7 +180,7 @@ static struct cl_page *cl_page_alloc(const struct lu_env *env, result = o->co_ops->coo_page_init(env, o, page, vmpage); if (result != 0) { - cl_page_delete0(env, page, 0); + cl_page_delete0(env, page); cl_page_free(env, page); page = ERR_PTR(result); break; @@ -321,6 +192,7 @@ static struct cl_page *cl_page_alloc(const struct lu_env *env, } return page; } +EXPORT_SYMBOL(cl_page_alloc); /** * Returns a cl_page with index \a idx at the object \a o, and associated with @@ -333,16 +205,13 @@ static struct cl_page *cl_page_alloc(const struct lu_env *env, * * \see cl_object_find(), cl_lock_find() */ -static struct cl_page *cl_page_find0(const struct lu_env *env, - struct cl_object *o, - pgoff_t idx, struct page *vmpage, - enum cl_page_type type, - struct cl_page *parent) +struct cl_page *cl_page_find(const struct lu_env *env, + struct cl_object *o, + pgoff_t idx, struct page *vmpage, + enum cl_page_type type) { struct cl_page *page = NULL; - struct cl_page *ghost = NULL; struct cl_object_header *hdr; - int err; LASSERT(type == CPT_CACHEABLE || type == CPT_TRANSIENT); might_sleep(); @@ -368,90 +237,19 @@ static struct cl_page *cl_page_find0(const struct lu_env *env, * reference on it. */ page = cl_vmpage_page(vmpage, o); - PINVRNT(env, page, - ergo(page, - cl_page_vmpage(env, page) == vmpage && - (void *)radix_tree_lookup(&hdr->coh_tree, - idx) == page)); - } - if (page) - return page; + if (page) + return page; + } /* allocate and initialize cl_page */ page = cl_page_alloc(env, o, idx, vmpage, type); - if (IS_ERR(page)) - return page; - - if (type == CPT_TRANSIENT) { - if (parent) { - LASSERT(!page->cp_parent); - page->cp_parent = parent; - parent->cp_child = page; - } - return page; - } - - /* - * XXX optimization: use radix_tree_preload() here, and change tree - * gfp mask to GFP_KERNEL in cl_object_header_init(). - */ - spin_lock(&hdr->coh_page_guard); - err = radix_tree_insert(&hdr->coh_tree, idx, page); - if (err != 0) { - ghost = page; - /* - * Noted by Jay: a lock on \a vmpage protects cl_page_find() - * from this race, but - * - * 0. it's better to have cl_page interface "locally - * consistent" so that its correctness can be reasoned - * about without appealing to the (obscure world of) VM - * locking. - * - * 1. handling this race allows ->coh_tree to remain - * consistent even when VM locking is somehow busted, - * which is very useful during diagnosing and debugging. - */ - page = ERR_PTR(err); - CL_PAGE_DEBUG(D_ERROR, env, ghost, - "fail to insert into radix tree: %d\n", err); - } else { - if (parent) { - LASSERT(!page->cp_parent); - page->cp_parent = parent; - parent->cp_child = page; - } - hdr->coh_pages++; - } - spin_unlock(&hdr->coh_page_guard); - - if (unlikely(ghost)) { - cl_page_delete0(env, ghost, 0); - cl_page_free(env, ghost); - } return page; } - -struct cl_page *cl_page_find(const struct lu_env *env, struct cl_object *o, - pgoff_t idx, struct page *vmpage, - enum cl_page_type type) -{ - return cl_page_find0(env, o, idx, vmpage, type, NULL); -} EXPORT_SYMBOL(cl_page_find); -struct cl_page *cl_page_find_sub(const struct lu_env *env, struct cl_object *o, - pgoff_t idx, struct page *vmpage, - struct cl_page *parent) -{ - return cl_page_find0(env, o, idx, vmpage, parent->cp_type, parent); -} -EXPORT_SYMBOL(cl_page_find_sub); - static inline int cl_page_invariant(const struct cl_page *pg) { - struct cl_object_header *header; struct cl_page *parent; struct cl_page *child; struct cl_io *owner; @@ -461,7 +259,6 @@ static inline int cl_page_invariant(const struct cl_page *pg) */ LINVRNT(cl_page_is_vmlocked(NULL, pg)); - header = cl_object_header(pg->cp_obj); parent = pg->cp_parent; child = pg->cp_child; owner = pg->cp_owner; @@ -473,15 +270,7 @@ static inline int cl_page_invariant(const struct cl_page *pg) ergo(parent, pg->cp_obj != parent->cp_obj) && ergo(owner && parent, parent->cp_owner == pg->cp_owner->ci_parent) && - ergo(owner && child, child->cp_owner->ci_parent == owner) && - /* - * Either page is early in initialization (has neither child - * nor parent yet), or it is in the object radix tree. - */ - ergo(pg->cp_state < CPS_FREEING && pg->cp_type == CPT_CACHEABLE, - (void *)radix_tree_lookup(&header->coh_tree, - pg->cp_index) == pg || - (!child && !parent)); + ergo(owner && child, child->cp_owner->ci_parent == owner); } static void cl_page_state_set0(const struct lu_env *env, @@ -1001,11 +790,8 @@ EXPORT_SYMBOL(cl_page_discard); * pages, e.g,. in a error handling cl_page_find()->cl_page_delete0() * path. Doesn't check page invariant. */ -static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg, - int radix) +static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg) { - struct cl_page *tmp = pg; - PASSERT(env, pg, pg == cl_page_top(pg)); PASSERT(env, pg, pg->cp_state != CPS_FREEING); @@ -1014,41 +800,11 @@ static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg, */ cl_page_owner_clear(pg); - /* - * unexport the page firstly before freeing it so that - * the page content is considered to be invalid. - * We have to do this because a CPS_FREEING cl_page may - * be NOT under the protection of a cl_lock. - * Afterwards, if this page is found by other threads, then this - * page will be forced to reread. - */ - cl_page_export(env, pg, 0); cl_page_state_set0(env, pg, CPS_FREEING); - CL_PAGE_INVOID(env, pg, CL_PAGE_OP(cpo_delete), - (const struct lu_env *, const struct cl_page_slice *)); - - if (tmp->cp_type == CPT_CACHEABLE) { - if (!radix) - /* !radix means that @pg is not yet in the radix tree, - * skip removing it. - */ - tmp = pg->cp_child; - for (; tmp; tmp = tmp->cp_child) { - void *value; - struct cl_object_header *hdr; - - hdr = cl_object_header(tmp->cp_obj); - spin_lock(&hdr->coh_page_guard); - value = radix_tree_delete(&hdr->coh_tree, - tmp->cp_index); - PASSERT(env, tmp, value == tmp); - PASSERT(env, tmp, hdr->coh_pages > 0); - hdr->coh_pages--; - spin_unlock(&hdr->coh_page_guard); - cl_page_put(env, tmp); - } - } + CL_PAGE_INVOID_REVERSE(env, pg, CL_PAGE_OP(cpo_delete), + (const struct lu_env *, + const struct cl_page_slice *)); } /** @@ -1079,30 +835,11 @@ static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg, void cl_page_delete(const struct lu_env *env, struct cl_page *pg) { PINVRNT(env, pg, cl_page_invariant(pg)); - cl_page_delete0(env, pg, 1); + cl_page_delete0(env, pg); } EXPORT_SYMBOL(cl_page_delete); /** - * Unmaps page from user virtual memory. - * - * Calls cl_page_operations::cpo_unmap() through all layers top-to-bottom. The - * layer responsible for VM interaction has to unmap page from user space - * virtual memory. - * - * \see cl_page_operations::cpo_unmap() - */ -int cl_page_unmap(const struct lu_env *env, - struct cl_io *io, struct cl_page *pg) -{ - PINVRNT(env, pg, cl_page_is_owned(pg, io)); - PINVRNT(env, pg, cl_page_invariant(pg)); - - return cl_page_invoke(env, io, pg, CL_PAGE_OP(cpo_unmap)); -} -EXPORT_SYMBOL(cl_page_unmap); - -/** * Marks page up-to-date. * * Call cl_page_operations::cpo_export() through all layers top-to-bottom. The @@ -1359,53 +1096,6 @@ int cl_page_is_under_lock(const struct lu_env *env, struct cl_io *io, } EXPORT_SYMBOL(cl_page_is_under_lock); -static int page_prune_cb(const struct lu_env *env, struct cl_io *io, - struct cl_page *page, void *cbdata) -{ - cl_page_own(env, io, page); - cl_page_unmap(env, io, page); - cl_page_discard(env, io, page); - cl_page_disown(env, io, page); - return CLP_GANG_OKAY; -} - -/** - * Purges all cached pages belonging to the object \a obj. - */ -int cl_pages_prune(const struct lu_env *env, struct cl_object *clobj) -{ - struct cl_thread_info *info; - struct cl_object *obj = cl_object_top(clobj); - struct cl_io *io; - int result; - - info = cl_env_info(env); - io = &info->clt_io; - - /* - * initialize the io. This is ugly since we never do IO in this - * function, we just make cl_page_list functions happy. -jay - */ - io->ci_obj = obj; - io->ci_ignore_layout = 1; - result = cl_io_init(env, io, CIT_MISC, obj); - if (result != 0) { - cl_io_fini(env, io); - return io->ci_result; - } - - do { - result = cl_page_gang_lookup(env, obj, io, 0, CL_PAGE_EOF, - page_prune_cb, NULL); - if (result == CLP_GANG_RESCHED) - cond_resched(); - } while (result != CLP_GANG_OKAY); - - cl_io_fini(env, io); - return result; -} -EXPORT_SYMBOL(cl_pages_prune); - /** * Tells transfer engine that only part of a page is to be transmitted. * diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index 6196c3b..c9d4e3c 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -1015,7 +1015,6 @@ static int osc_extent_truncate(struct osc_extent *ext, pgoff_t trunc_index, lu_ref_add(&page->cp_reference, "truncate", current); if (cl_page_own(env, io, page) == 0) { - cl_page_unmap(env, io, page); cl_page_discard(env, io, page); cl_page_disown(env, io, page); } else { @@ -2136,8 +2135,7 @@ static void osc_check_rpcs(const struct lu_env *env, struct client_obd *cli) cl_object_get(obj); client_obd_list_unlock(&cli->cl_loi_list_lock); - lu_object_ref_add_at(&obj->co_lu, &link, "check", - current); + lu_object_ref_add_at(&obj->co_lu, &link, "check", current); /* attempt some read/write balancing by alternating between * reads and writes in an object. The makes_rpc checks here @@ -2180,8 +2178,7 @@ static void osc_check_rpcs(const struct lu_env *env, struct client_obd *cli) osc_object_unlock(osc); osc_list_maint(cli, osc); - lu_object_ref_del_at(&obj->co_lu, &link, "check", - current); + lu_object_ref_del_at(&obj->co_lu, &link, "check", current); cl_object_put(env, obj); client_obd_list_lock(&cli->cl_loi_list_lock); @@ -2994,4 +2991,204 @@ int osc_cache_writeback_range(const struct lu_env *env, struct osc_object *obj, return result; } +/** + * Returns a list of pages by a given [start, end] of \a obj. + * + * \param resched If not NULL, then we give up before hogging CPU for too + * long and set *resched = 1, in that case caller should implement a retry + * logic. + * + * Gang tree lookup (radix_tree_gang_lookup()) optimization is absolutely + * crucial in the face of [offset, EOF] locks. + * + * Return at least one page in @queue unless there is no covered page. + */ +int osc_page_gang_lookup(const struct lu_env *env, struct cl_io *io, + struct osc_object *osc, pgoff_t start, pgoff_t end, + osc_page_gang_cbt cb, void *cbdata) +{ + struct osc_page *ops; + void **pvec; + pgoff_t idx; + unsigned int nr; + unsigned int i; + unsigned int j; + int res = CLP_GANG_OKAY; + bool tree_lock = true; + + idx = start; + pvec = osc_env_info(env)->oti_pvec; + spin_lock(&osc->oo_tree_lock); + while ((nr = radix_tree_gang_lookup(&osc->oo_tree, pvec, + idx, OTI_PVEC_SIZE)) > 0) { + struct cl_page *page; + bool end_of_region = false; + + for (i = 0, j = 0; i < nr; ++i) { + ops = pvec[i]; + pvec[i] = NULL; + + idx = osc_index(ops); + if (idx > end) { + end_of_region = true; + break; + } + + page = cl_page_top(ops->ops_cl.cpl_page); + LASSERT(page->cp_type == CPT_CACHEABLE); + if (page->cp_state == CPS_FREEING) + continue; + + cl_page_get(page); + lu_ref_add_atomic(&page->cp_reference, + "gang_lookup", current); + pvec[j++] = ops; + } + ++idx; + + /* + * Here a delicate locking dance is performed. Current thread + * holds a reference to a page, but has to own it before it + * can be placed into queue. Owning implies waiting, so + * radix-tree lock is to be released. After a wait one has to + * check that pages weren't truncated (cl_page_own() returns + * error in the latter case). + */ + spin_unlock(&osc->oo_tree_lock); + tree_lock = false; + + for (i = 0; i < j; ++i) { + ops = pvec[i]; + if (res == CLP_GANG_OKAY) + res = (*cb)(env, io, ops, cbdata); + + page = cl_page_top(ops->ops_cl.cpl_page); + lu_ref_del(&page->cp_reference, "gang_lookup", current); + cl_page_put(env, page); + } + if (nr < OTI_PVEC_SIZE || end_of_region) + break; + + if (res == CLP_GANG_OKAY && need_resched()) + res = CLP_GANG_RESCHED; + if (res != CLP_GANG_OKAY) + break; + + spin_lock(&osc->oo_tree_lock); + tree_lock = true; + } + if (tree_lock) + spin_unlock(&osc->oo_tree_lock); + return res; +} + +/** + * Check if page @page is covered by an extra lock or discard it. + */ +static int check_and_discard_cb(const struct lu_env *env, struct cl_io *io, + struct osc_page *ops, void *cbdata) +{ + struct osc_thread_info *info = osc_env_info(env); + struct cl_lock *lock = cbdata; + pgoff_t index; + + index = osc_index(ops); + if (index >= info->oti_fn_index) { + struct cl_lock *tmp; + struct cl_page *page = cl_page_top(ops->ops_cl.cpl_page); + + /* refresh non-overlapped index */ + tmp = cl_lock_at_pgoff(env, lock->cll_descr.cld_obj, index, + lock, 1, 0); + if (tmp) { + /* Cache the first-non-overlapped index so as to skip + * all pages within [index, oti_fn_index). This + * is safe because if tmp lock is canceled, it will + * discard these pages. + */ + info->oti_fn_index = tmp->cll_descr.cld_end + 1; + if (tmp->cll_descr.cld_end == CL_PAGE_EOF) + info->oti_fn_index = CL_PAGE_EOF; + cl_lock_put(env, tmp); + } else if (cl_page_own(env, io, page) == 0) { + /* discard the page */ + cl_page_discard(env, io, page); + cl_page_disown(env, io, page); + } else { + LASSERT(page->cp_state == CPS_FREEING); + } + } + + info->oti_next_index = index + 1; + return CLP_GANG_OKAY; +} + +static int discard_cb(const struct lu_env *env, struct cl_io *io, + struct osc_page *ops, void *cbdata) +{ + struct osc_thread_info *info = osc_env_info(env); + struct cl_lock *lock = cbdata; + struct cl_page *page = cl_page_top(ops->ops_cl.cpl_page); + + LASSERT(lock->cll_descr.cld_mode >= CLM_WRITE); + KLASSERT(ergo(page->cp_type == CPT_CACHEABLE, + !PageWriteback(cl_page_vmpage(env, page)))); + KLASSERT(ergo(page->cp_type == CPT_CACHEABLE, + !PageDirty(cl_page_vmpage(env, page)))); + + /* page is top page. */ + info->oti_next_index = osc_index(ops) + 1; + if (cl_page_own(env, io, page) == 0) { + /* discard the page */ + cl_page_discard(env, io, page); + cl_page_disown(env, io, page); + } else { + LASSERT(page->cp_state == CPS_FREEING); + } + + return CLP_GANG_OKAY; +} + +/** + * Discard pages protected by the given lock. This function traverses radix + * tree to find all covering pages and discard them. If a page is being covered + * by other locks, it should remain in cache. + * + * If error happens on any step, the process continues anyway (the reasoning + * behind this being that lock cancellation cannot be delayed indefinitely). + */ +int osc_lock_discard_pages(const struct lu_env *env, struct osc_lock *ols) +{ + struct osc_thread_info *info = osc_env_info(env); + struct cl_io *io = &info->oti_io; + struct cl_object *osc = ols->ols_cl.cls_obj; + struct cl_lock *lock = ols->ols_cl.cls_lock; + struct cl_lock_descr *descr = &lock->cll_descr; + osc_page_gang_cbt cb; + int res; + int result; + + io->ci_obj = cl_object_top(osc); + io->ci_ignore_layout = 1; + result = cl_io_init(env, io, CIT_MISC, io->ci_obj); + if (result != 0) + goto out; + + cb = descr->cld_mode == CLM_READ ? check_and_discard_cb : discard_cb; + info->oti_fn_index = info->oti_next_index = descr->cld_start; + do { + res = osc_page_gang_lookup(env, io, cl2osc(osc), + info->oti_next_index, descr->cld_end, + cb, (void *)lock); + if (info->oti_next_index > descr->cld_end) + break; + + if (res == CLP_GANG_RESCHED) + cond_resched(); + } while (res != CLP_GANG_OKAY); +out: + cl_io_fini(env, io); + return result; +} + /** @} osc */ diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index b6325f5..e70f06c 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -111,7 +111,12 @@ struct osc_thread_info { struct lustre_handle oti_handle; struct cl_page_list oti_plist; struct cl_io oti_io; - struct cl_page *oti_pvec[OTI_PVEC_SIZE]; + void *oti_pvec[OTI_PVEC_SIZE]; + /** + * Fields used by cl_lock_discard_pages(). + */ + pgoff_t oti_next_index; + pgoff_t oti_fn_index; /* first non-overlapped index */ }; struct osc_object { @@ -161,6 +166,13 @@ struct osc_object { * oo_{read|write}_pages soon. */ spinlock_t oo_lock; + + /** + * Radix tree for caching pages + */ + struct radix_tree_root oo_tree; + spinlock_t oo_tree_lock; + unsigned long oo_npages; }; static inline void osc_object_lock(struct osc_object *obj) @@ -569,6 +581,11 @@ static inline struct osc_page *oap2osc_page(struct osc_async_page *oap) return (struct osc_page *)container_of(oap, struct osc_page, ops_oap); } +static inline pgoff_t osc_index(struct osc_page *opg) +{ + return opg->ops_cl.cpl_page->cp_index; +} + static inline struct osc_lock *cl2osc_lock(const struct cl_lock_slice *slice) { LINVRNT(osc_is_object(&slice->cls_obj->co_lu)); @@ -691,6 +708,14 @@ int osc_extent_finish(const struct lu_env *env, struct osc_extent *ext, int sent, int rc); void osc_extent_release(const struct lu_env *env, struct osc_extent *ext); +int osc_lock_discard_pages(const struct lu_env *env, struct osc_lock *lock); + +typedef int (*osc_page_gang_cbt)(const struct lu_env *, struct cl_io *, + struct osc_page *, void *); +int osc_page_gang_lookup(const struct lu_env *env, struct cl_io *io, + struct osc_object *osc, pgoff_t start, pgoff_t end, + osc_page_gang_cbt cb, void *cbdata); + /** @} osc */ #endif /* OSC_CL_INTERNAL_H */ diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c index a0fa533..1536d31 100644 --- a/drivers/staging/lustre/lustre/osc/osc_io.c +++ b/drivers/staging/lustre/lustre/osc/osc_io.c @@ -391,18 +391,13 @@ static int osc_async_upcall(void *a, int rc) * Checks that there are no pages being written in the extent being truncated. */ static int trunc_check_cb(const struct lu_env *env, struct cl_io *io, - struct cl_page *page, void *cbdata) + struct osc_page *ops, void *cbdata) { - const struct cl_page_slice *slice; - struct osc_page *ops; + struct cl_page *page = ops->ops_cl.cpl_page; struct osc_async_page *oap; __u64 start = *(__u64 *)cbdata; - slice = cl_page_at(page, &osc_device_type); - LASSERT(slice); - ops = cl2osc_page(slice); oap = &ops->ops_oap; - if (oap->oap_cmd & OBD_BRW_WRITE && !list_empty(&oap->oap_pending_item)) CL_PAGE_DEBUG(D_ERROR, env, page, "exists %llu/%s.\n", @@ -434,8 +429,9 @@ static void osc_trunc_check(const struct lu_env *env, struct cl_io *io, /* * Complain if there are pages in the truncated region. */ - cl_page_gang_lookup(env, clob, io, start + partial, CL_PAGE_EOF, - trunc_check_cb, (void *)&size); + osc_page_gang_lookup(env, io, cl2osc(clob), + start + partial, CL_PAGE_EOF, + trunc_check_cb, (void *)&size); } static int osc_io_setattr_start(const struct lu_env *env, diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c index 013df97..3a8a6d1 100644 --- a/drivers/staging/lustre/lustre/osc/osc_lock.c +++ b/drivers/staging/lustre/lustre/osc/osc_lock.c @@ -36,6 +36,7 @@ * Implementation of cl_lock for OSC layer. * * Author: Nikita Danilov + * Author: Jinshan Xiong */ #define DEBUG_SUBSYSTEM S_OSC @@ -897,11 +898,8 @@ static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data) static unsigned long osc_lock_weigh(const struct lu_env *env, const struct cl_lock_slice *slice) { - /* - * don't need to grab coh_page_guard since we don't care the exact # - * of pages.. - */ - return cl_object_header(slice->cls_obj)->coh_pages; + /* TODO: check how many pages are covered by this lock */ + return cl2osc(slice->cls_obj)->oo_npages; } static void osc_lock_build_einfo(const struct lu_env *env, @@ -1276,7 +1274,7 @@ static int osc_lock_flush(struct osc_lock *ols, int discard) result = 0; } - rc = cl_lock_discard_pages(env, lock); + rc = osc_lock_discard_pages(env, ols); if (result == 0 && rc < 0) result = rc; diff --git a/drivers/staging/lustre/lustre/osc/osc_object.c b/drivers/staging/lustre/lustre/osc/osc_object.c index 9d474fc..2d2d39a 100644 --- a/drivers/staging/lustre/lustre/osc/osc_object.c +++ b/drivers/staging/lustre/lustre/osc/osc_object.c @@ -36,6 +36,7 @@ * Implementation of cl_object for OSC layer. * * Author: Nikita Danilov + * Author: Jinshan Xiong */ #define DEBUG_SUBSYSTEM S_OSC @@ -94,6 +95,7 @@ static int osc_object_init(const struct lu_env *env, struct lu_object *obj, atomic_set(&osc->oo_nr_reads, 0); atomic_set(&osc->oo_nr_writes, 0); spin_lock_init(&osc->oo_lock); + spin_lock_init(&osc->oo_tree_lock); cl_object_page_init(lu2cl(obj), sizeof(struct osc_page)); diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index f0a9870..91ff607 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -36,6 +36,7 @@ * Implementation of cl_page for OSC layer. * * Author: Nikita Danilov + * Author: Jinshan Xiong */ #define DEBUG_SUBSYSTEM S_OSC @@ -326,6 +327,18 @@ static void osc_page_delete(const struct lu_env *env, spin_unlock(&obj->oo_seatbelt); osc_lru_del(osc_cli(obj), opg); + + if (slice->cpl_page->cp_type == CPT_CACHEABLE) { + void *value; + + spin_lock(&obj->oo_tree_lock); + value = radix_tree_delete(&obj->oo_tree, osc_index(opg)); + if (value) + --obj->oo_npages; + spin_unlock(&obj->oo_tree_lock); + + LASSERT(ergo(value, value == opg)); + } } static void osc_page_clip(const struct lu_env *env, @@ -422,8 +435,18 @@ int osc_page_init(const struct lu_env *env, struct cl_object *obj, INIT_LIST_HEAD(&opg->ops_lru); /* reserve an LRU space for this page */ - if (page->cp_type == CPT_CACHEABLE && result == 0) + if (page->cp_type == CPT_CACHEABLE && result == 0) { result = osc_lru_reserve(env, osc, opg); + if (result == 0) { + spin_lock(&osc->oo_tree_lock); + result = radix_tree_insert(&osc->oo_tree, + page->cp_index, opg); + if (result == 0) + ++osc->oo_npages; + spin_unlock(&osc->oo_tree_lock); + LASSERT(result == 0); + } + } return result; } @@ -611,7 +634,6 @@ static void discard_pagevec(const struct lu_env *env, struct cl_io *io, struct cl_page *page = pvec[i]; LASSERT(cl_page_is_owned(page, io)); - cl_page_unmap(env, io, page); cl_page_discard(env, io, page); cl_page_disown(env, io, page); cl_page_put(env, page); @@ -652,7 +674,7 @@ int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, atomic_inc(&cli->cl_lru_shrinkers); } - pvec = osc_env_info(env)->oti_pvec; + pvec = (struct cl_page **)osc_env_info(env)->oti_pvec; io = &osc_env_info(env)->oti_io; client_obd_list_lock(&cli->cl_lru_list_lock); -- cgit v0.10.2 From 3c361c1c6f64a675ced590df4a68956020de4a93 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:29 -0400 Subject: staging/lustre/obdclass: Add a preallocated percpu cl_env This change adds support for a single preallocated cl_env per CPU which can be used in circumstances where reschedule is not possible. Currently this interface is only used by the ll_releasepage function. Signed-off-by: Jinshan Xiong Signed-off-by: Prakash Surya Reviewed-on: http://review.whamcloud.com/8174 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3321 Reviewed-by: Lai Siyao Reviewed-by: Bobi Jam Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index 5daf688..e8455dc 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -2773,6 +2773,16 @@ static inline void *cl_object_page_slice(struct cl_object *clob, return (void *)((char *)page + clob->co_slice_off); } +/** + * Return refcount of cl_object. + */ +static inline int cl_object_refc(struct cl_object *clob) +{ + struct lu_object_header *header = clob->co_lu.lo_header; + + return atomic_read(&header->loh_ref); +} + /** @} cl_object */ /** \defgroup cl_page cl_page @@ -3226,6 +3236,8 @@ void cl_env_reexit(void *cookie); void cl_env_implant(struct lu_env *env, int *refcheck); void cl_env_unplant(struct lu_env *env, int *refcheck); unsigned int cl_env_cache_purge(unsigned int nr); +struct lu_env *cl_env_percpu_get(void); +void cl_env_percpu_put(struct lu_env *env); /** @} cl_env */ diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index b5335de..cc49c21 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -107,12 +107,12 @@ static void ll_invalidatepage(struct page *vmpage, unsigned int offset, static int ll_releasepage(struct page *vmpage, gfp_t gfp_mask) { - struct cl_env_nest nest; struct lu_env *env; + void *cookie; struct cl_object *obj; struct cl_page *page; struct address_space *mapping; - int result; + int result = 0; LASSERT(PageLocked(vmpage)); if (PageWriteback(vmpage) || PageDirty(vmpage)) @@ -126,30 +126,42 @@ static int ll_releasepage(struct page *vmpage, gfp_t gfp_mask) if (!obj) return 1; - /* 1 for page allocator, 1 for cl_page and 1 for page cache */ + /* 1 for caller, 1 for cl_page and 1 for page cache */ if (page_count(vmpage) > 3) return 0; - /* TODO: determine what gfp should be used by @gfp_mask. */ - env = cl_env_nested_get(&nest); - if (IS_ERR(env)) - /* If we can't allocate an env we won't call cl_page_put() - * later on which further means it's impossible to drop - * page refcount by cl_page, so ask kernel to not free - * this page. - */ - return 0; - page = cl_vmpage_page(vmpage, obj); - result = !page; - if (page) { - if (!cl_page_in_use(page)) { - result = 1; - cl_page_delete(env, page); - } - cl_page_put(env, page); + if (!page) + return 1; + + cookie = cl_env_reenter(); + env = cl_env_percpu_get(); + LASSERT(!IS_ERR(env)); + + if (!cl_page_in_use(page)) { + result = 1; + cl_page_delete(env, page); } - cl_env_nested_put(&nest, env); + + /* To use percpu env array, the call path can not be rescheduled; + * otherwise percpu array will be messed if ll_releaspage() called + * again on the same CPU. + * + * If this page holds the last refc of cl_object, the following + * call path may cause reschedule: + * cl_page_put -> cl_page_free -> cl_object_put -> + * lu_object_put -> lu_object_free -> lov_delete_raid0 -> + * cl_locks_prune. + * + * However, the kernel can't get rid of this inode until all pages have + * been cleaned up. Now that we hold page lock here, it's pretty safe + * that we won't get into object delete path. + */ + LASSERT(cl_object_refc(obj) > 1); + cl_page_put(env, page); + + cl_env_percpu_put(env); + cl_env_reexit(cookie); return result; } diff --git a/drivers/staging/lustre/lustre/obdclass/cl_lock.c b/drivers/staging/lustre/lustre/obdclass/cl_lock.c index 32ecc5a..fe8059a 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_lock.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_lock.c @@ -255,7 +255,6 @@ static void cl_lock_free(const struct lu_env *env, struct cl_lock *lock) LINVRNT(!cl_lock_is_mutexed(lock)); cl_lock_trace(D_DLMTRACE, env, "free lock", lock); - might_sleep(); while (!list_empty(&lock->cll_layers)) { struct cl_lock_slice *slice; diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c index 65b6402..fa9b083 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c @@ -390,6 +390,8 @@ static int cache_stats_print(const struct cache_stats *cs, return 0; } +static void cl_env_percpu_refill(void); + /** * Initialize client site. * @@ -409,6 +411,7 @@ int cl_site_init(struct cl_site *s, struct cl_device *d) atomic_set(&s->cs_pages_state[0], 0); for (i = 0; i < ARRAY_SIZE(s->cs_locks_state); ++i) atomic_set(&s->cs_locks_state[i], 0); + cl_env_percpu_refill(); } return result; } @@ -1001,6 +1004,104 @@ void cl_lvb2attr(struct cl_attr *attr, const struct ost_lvb *lvb) } EXPORT_SYMBOL(cl_lvb2attr); +static struct cl_env cl_env_percpu[NR_CPUS]; + +static int cl_env_percpu_init(void) +{ + struct cl_env *cle; + int tags = LCT_REMEMBER | LCT_NOREF; + int i, j; + int rc = 0; + + for_each_possible_cpu(i) { + struct lu_env *env; + + cle = &cl_env_percpu[i]; + env = &cle->ce_lu; + + INIT_LIST_HEAD(&cle->ce_linkage); + cle->ce_magic = &cl_env_init0; + rc = lu_env_init(env, LCT_CL_THREAD | tags); + if (rc == 0) { + rc = lu_context_init(&cle->ce_ses, LCT_SESSION | tags); + if (rc == 0) { + lu_context_enter(&cle->ce_ses); + env->le_ses = &cle->ce_ses; + } else { + lu_env_fini(env); + } + } + if (rc != 0) + break; + } + if (rc != 0) { + /* Indices 0 to i (excluding i) were correctly initialized, + * thus we must uninitialize up to i, the rest are undefined. + */ + for (j = 0; j < i; j++) { + cle = &cl_env_percpu[i]; + lu_context_exit(&cle->ce_ses); + lu_context_fini(&cle->ce_ses); + lu_env_fini(&cle->ce_lu); + } + } + + return rc; +} + +static void cl_env_percpu_fini(void) +{ + int i; + + for_each_possible_cpu(i) { + struct cl_env *cle = &cl_env_percpu[i]; + + lu_context_exit(&cle->ce_ses); + lu_context_fini(&cle->ce_ses); + lu_env_fini(&cle->ce_lu); + } +} + +static void cl_env_percpu_refill(void) +{ + int i; + + for_each_possible_cpu(i) + lu_env_refill(&cl_env_percpu[i].ce_lu); +} + +void cl_env_percpu_put(struct lu_env *env) +{ + struct cl_env *cle; + int cpu; + + cpu = smp_processor_id(); + cle = cl_env_container(env); + LASSERT(cle == &cl_env_percpu[cpu]); + + cle->ce_ref--; + LASSERT(cle->ce_ref == 0); + + CL_ENV_DEC(busy); + cl_env_detach(cle); + cle->ce_debug = NULL; + + put_cpu(); +} +EXPORT_SYMBOL(cl_env_percpu_put); + +struct lu_env *cl_env_percpu_get() +{ + struct cl_env *cle; + + cle = &cl_env_percpu[get_cpu()]; + cl_env_init0(cle, __builtin_return_address(0)); + + cl_env_attach(cle); + return &cle->ce_lu; +} +EXPORT_SYMBOL(cl_env_percpu_get); + /***************************************************************************** * * Temporary prototype thing: mirror obd-devices into cl devices. @@ -1154,6 +1255,11 @@ int cl_global_init(void) if (result) goto out_lock; + result = cl_env_percpu_init(); + if (result) + /* no cl_env_percpu_fini on error */ + goto out_lock; + return 0; out_lock: cl_lock_fini(); @@ -1171,6 +1277,7 @@ out_store: */ void cl_global_fini(void) { + cl_env_percpu_fini(); cl_lock_fini(); cl_page_fini(); lu_context_key_degister(&cl_key); diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c index 8169836..bab8a74 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c @@ -123,7 +123,6 @@ static void cl_page_free(const struct lu_env *env, struct cl_page *page) PASSERT(env, page, !page->cp_parent); PASSERT(env, page, page->cp_state == CPS_FREEING); - might_sleep(); while (!list_empty(&page->cp_layers)) { struct cl_page_slice *slice; -- cgit v0.10.2 From 77605e41a26f22343db90d6434970a1800e5e8b5 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:30 -0400 Subject: staging/lustre/clio: add pages into writeback cache in batches in ll_write_end(), instead of adding the page into writeback cache directly, it will be held in a page list. After enough pages have been collected, issue them all with cio_commit_async(). Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/7893 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3321 Reviewed-by: Bobi Jam Reviewed-by: Lai Siyao Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index e8455dc..c3865ec 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -1019,26 +1019,6 @@ struct cl_page_operations { */ int (*cpo_make_ready)(const struct lu_env *env, const struct cl_page_slice *slice); - /** - * Announce that this page is to be written out - * opportunistically, that is, page is dirty, it is not - * necessary to start write-out transfer right now, but - * eventually page has to be written out. - * - * Main caller of this is the write path (see - * vvp_io_commit_write()), using this method to build a - * "transfer cache" from which large transfers are then - * constructed by the req-formation engine. - * - * \todo XXX it would make sense to add page-age tracking - * semantics here, and to oblige the req-formation engine to - * send the page out not later than it is too old. - * - * \see cl_page_cache_add() - */ - int (*cpo_cache_add)(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *io); } io[CRT_NR]; /** * Tell transfer engine that only [to, from] part of a page should be @@ -2023,6 +2003,8 @@ struct cl_io_slice { struct list_head cis_linkage; }; +typedef void (*cl_commit_cbt)(const struct lu_env *, struct cl_io *, + struct cl_page *); /** * Per-layer io operations. * \see vvp_io_ops, lov_io_ops, lovsub_io_ops, osc_io_ops @@ -2106,7 +2088,7 @@ struct cl_io_operations { void (*cio_fini)(const struct lu_env *env, const struct cl_io_slice *slice); } op[CIT_OP_NR]; - struct { + /** * Submit pages from \a queue->c2_qin for IO, and move * successfully submitted pages into \a queue->c2_qout. Return @@ -2119,7 +2101,15 @@ struct cl_io_operations { const struct cl_io_slice *slice, enum cl_req_type crt, struct cl_2queue *queue); - } req_op[CRT_NR]; + /** + * Queue async page for write. + * The difference between cio_submit and cio_queue is that + * cio_submit is for urgent request. + */ + int (*cio_commit_async)(const struct lu_env *env, + const struct cl_io_slice *slice, + struct cl_page_list *queue, int from, int to, + cl_commit_cbt cb); /** * Read missing page. * @@ -2132,31 +2122,6 @@ struct cl_io_operations { const struct cl_io_slice *slice, const struct cl_page_slice *page); /** - * Prepare write of a \a page. Called bottom-to-top by a top-level - * cl_io_operations::op[CIT_WRITE]::cio_start() to prepare page for - * get data from user-level buffer. - * - * \pre io->ci_type == CIT_WRITE - * - * \see vvp_io_prepare_write(), lov_io_prepare_write(), - * osc_io_prepare_write(). - */ - int (*cio_prepare_write)(const struct lu_env *env, - const struct cl_io_slice *slice, - const struct cl_page_slice *page, - unsigned from, unsigned to); - /** - * - * \pre io->ci_type == CIT_WRITE - * - * \see vvp_io_commit_write(), lov_io_commit_write(), - * osc_io_commit_write(). - */ - int (*cio_commit_write)(const struct lu_env *env, - const struct cl_io_slice *slice, - const struct cl_page_slice *page, - unsigned from, unsigned to); - /** * Optional debugging helper. Print given io slice. */ int (*cio_print)(const struct lu_env *env, void *cookie, @@ -3044,15 +3009,14 @@ int cl_io_lock_alloc_add(const struct lu_env *env, struct cl_io *io, struct cl_lock_descr *descr); int cl_io_read_page(const struct lu_env *env, struct cl_io *io, struct cl_page *page); -int cl_io_prepare_write(const struct lu_env *env, struct cl_io *io, - struct cl_page *page, unsigned from, unsigned to); -int cl_io_commit_write(const struct lu_env *env, struct cl_io *io, - struct cl_page *page, unsigned from, unsigned to); int cl_io_submit_rw(const struct lu_env *env, struct cl_io *io, enum cl_req_type iot, struct cl_2queue *queue); int cl_io_submit_sync(const struct lu_env *env, struct cl_io *io, enum cl_req_type iot, struct cl_2queue *queue, long timeout); +int cl_io_commit_async(const struct lu_env *env, struct cl_io *io, + struct cl_page_list *queue, int from, int to, + cl_commit_cbt cb); int cl_io_is_going(const struct lu_env *env); /** @@ -3108,6 +3072,12 @@ static inline struct cl_page *cl_page_list_last(struct cl_page_list *plist) return list_entry(plist->pl_pages.prev, struct cl_page, cp_batch); } +static inline struct cl_page *cl_page_list_first(struct cl_page_list *plist) +{ + LASSERT(plist->pl_nr > 0); + return list_entry(plist->pl_pages.next, struct cl_page, cp_batch); +} + /** * Iterate over pages in a page list. */ @@ -3124,9 +3094,14 @@ void cl_page_list_init(struct cl_page_list *plist); void cl_page_list_add(struct cl_page_list *plist, struct cl_page *page); void cl_page_list_move(struct cl_page_list *dst, struct cl_page_list *src, struct cl_page *page); +void cl_page_list_move_head(struct cl_page_list *dst, struct cl_page_list *src, + struct cl_page *page); void cl_page_list_splice(struct cl_page_list *list, struct cl_page_list *head); +void cl_page_list_del(const struct lu_env *env, struct cl_page_list *plist, + struct cl_page *page); void cl_page_list_disown(const struct lu_env *env, struct cl_io *io, struct cl_page_list *plist); +void cl_page_list_fini(const struct lu_env *env, struct cl_page_list *plist); void cl_2queue_init(struct cl_2queue *queue); void cl_2queue_disown(const struct lu_env *env, diff --git a/drivers/staging/lustre/lustre/include/lclient.h b/drivers/staging/lustre/lustre/include/lclient.h index 5d839a9..6c3a30a 100644 --- a/drivers/staging/lustre/lustre/include/lclient.h +++ b/drivers/staging/lustre/lustre/include/lclient.h @@ -91,6 +91,12 @@ struct ccc_io { struct { enum ccc_setattr_lock_type cui_local_lock; } setattr; + struct { + struct cl_page_list cui_queue; + unsigned long cui_written; + int cui_from; + int cui_to; + } write; } u; /** * True iff io is processing glimpse right now. diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index cf619af..127fff6 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -1120,6 +1120,9 @@ ll_file_io_generic(const struct lu_env *env, struct vvp_io_args *args, struct cl_io *io; ssize_t result; + CDEBUG(D_VFSTRACE, "file: %s, type: %d ppos: %llu, count: %zd\n", + file->f_path.dentry->d_name.name, iot, *ppos, count); + restart: io = ccc_env_thread_io(env); ll_io_init(io, file, iot == CIT_WRITE); @@ -1144,9 +1147,8 @@ restart: goto out; } write_mutex_locked = 1; - } else if (iot == CIT_READ) { - down_read(&lli->lli_trunc_sem); } + down_read(&lli->lli_trunc_sem); break; case IO_SPLICE: vio->u.splice.cui_pipe = args->u.splice.via_pipe; @@ -1157,10 +1159,10 @@ restart: LBUG(); } result = cl_io_loop(env, io); + if (args->via_io_subtype == IO_NORMAL) + up_read(&lli->lli_trunc_sem); if (write_mutex_locked) mutex_unlock(&lli->lli_write_mutex); - else if (args->via_io_subtype == IO_NORMAL && iot == CIT_READ) - up_read(&lli->lli_trunc_sem); } else { /* cl_io_rw_init() handled IO */ result = io->ci_result; @@ -1197,6 +1199,7 @@ out: fd->fd_write_failed = true; } } + CDEBUG(D_VFSTRACE, "iot: %d, result: %zd\n", iot, result); return result; } diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 3e1572c..08fe0ea 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -697,8 +697,6 @@ int ll_md_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *, struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de); /* llite/rw.c */ -int ll_prepare_write(struct file *, struct page *, unsigned from, unsigned to); -int ll_commit_write(struct file *, struct page *, unsigned from, unsigned to); int ll_writepage(struct page *page, struct writeback_control *wbc); int ll_writepages(struct address_space *, struct writeback_control *wbc); int ll_readpage(struct file *file, struct page *page); @@ -706,6 +704,9 @@ void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras); int ll_readahead(const struct lu_env *env, struct cl_io *io, struct ll_readahead_state *ras, struct address_space *mapping, struct cl_page_list *queue, int flags); +int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io); +struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage); +void ll_cl_fini(struct ll_cl_context *lcc); extern const struct address_space_operations ll_aops; @@ -1476,4 +1477,7 @@ int ll_layout_restore(struct inode *inode); int ll_xattr_init(void); void ll_xattr_fini(void); +int ll_page_sync_io(const struct lu_env *env, struct cl_io *io, + struct cl_page *page, enum cl_req_type crt); + #endif /* LLITE_INTERNAL_H */ diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index 01b8365..dcccdec 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -63,7 +63,7 @@ * Finalizes cl-data before exiting typical address_space operation. Dual to * ll_cl_init(). */ -static void ll_cl_fini(struct ll_cl_context *lcc) +void ll_cl_fini(struct ll_cl_context *lcc) { struct lu_env *env = lcc->lcc_env; struct cl_io *io = lcc->lcc_io; @@ -84,8 +84,7 @@ static void ll_cl_fini(struct ll_cl_context *lcc) * Initializes common cl-data at the typical address_space operation entry * point. */ -static struct ll_cl_context *ll_cl_init(struct file *file, - struct page *vmpage, int create) +struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage) { struct ll_cl_context *lcc; struct lu_env *env; @@ -96,7 +95,7 @@ static struct ll_cl_context *ll_cl_init(struct file *file, int refcheck; int result = 0; - clob = ll_i2info(vmpage->mapping->host)->lli_clob; + clob = ll_i2info(file_inode(file))->lli_clob; LASSERT(clob); env = cl_env_get(&refcheck); @@ -111,62 +110,18 @@ static struct ll_cl_context *ll_cl_init(struct file *file, cio = ccc_env_io(env); io = cio->cui_cl.cis_io; - if (!io && create) { - struct inode *inode = vmpage->mapping->host; - loff_t pos; + lcc->lcc_io = io; + if (!io) { + struct inode *inode = file_inode(file); - if (inode_trylock(inode)) { - inode_unlock((inode)); + CERROR("%s: " DFID " no active IO, please file a ticket.\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(ll_inode2fid(inode))); + dump_stack(); - /* this is too bad. Someone is trying to write the - * page w/o holding inode mutex. This means we can - * add dirty pages into cache during truncate - */ - CERROR("Proc %s is dirtying page w/o inode lock, this will break truncate\n", - current->comm); - dump_stack(); - LBUG(); - return ERR_PTR(-EIO); - } - - /* - * Loop-back driver calls ->prepare_write(). - * methods directly, bypassing file system ->write() operation, - * so cl_io has to be created here. - */ - io = ccc_env_thread_io(env); - ll_io_init(io, file, 1); - - /* No lock at all for this kind of IO - we can't do it because - * we have held page lock, it would cause deadlock. - * XXX: This causes poor performance to loop device - One page - * per RPC. - * In order to get better performance, users should use - * lloop driver instead. - */ - io->ci_lockreq = CILR_NEVER; - - pos = vmpage->index << PAGE_CACHE_SHIFT; - - /* Create a temp IO to serve write. */ - result = cl_io_rw_init(env, io, CIT_WRITE, pos, PAGE_CACHE_SIZE); - if (result == 0) { - cio->cui_fd = LUSTRE_FPRIVATE(file); - cio->cui_iter = NULL; - result = cl_io_iter_init(env, io); - if (result == 0) { - result = cl_io_lock(env, io); - if (result == 0) - result = cl_io_start(env, io); - } - } else - result = io->ci_result; - } - - lcc->lcc_io = io; - if (!io) result = -EIO; - if (result == 0) { + } + if (result == 0 && vmpage) { struct cl_page *page; LASSERT(io->ci_state == CIS_IO_GOING); @@ -185,99 +140,9 @@ static struct ll_cl_context *ll_cl_init(struct file *file, lcc = ERR_PTR(result); } - CDEBUG(D_VFSTRACE, "%lu@"DFID" -> %d %p %p\n", - vmpage->index, PFID(lu_object_fid(&clob->co_lu)), result, - env, io); return lcc; } -static struct ll_cl_context *ll_cl_get(void) -{ - struct ll_cl_context *lcc; - struct lu_env *env; - int refcheck; - - env = cl_env_get(&refcheck); - LASSERT(!IS_ERR(env)); - lcc = &vvp_env_info(env)->vti_io_ctx; - LASSERT(env == lcc->lcc_env); - LASSERT(current == lcc->lcc_cookie); - cl_env_put(env, &refcheck); - - /* env has got in ll_cl_init, so it is still usable. */ - return lcc; -} - -/** - * ->prepare_write() address space operation called by generic_file_write() - * for every page during write. - */ -int ll_prepare_write(struct file *file, struct page *vmpage, unsigned from, - unsigned to) -{ - struct ll_cl_context *lcc; - int result; - - lcc = ll_cl_init(file, vmpage, 1); - if (!IS_ERR(lcc)) { - struct lu_env *env = lcc->lcc_env; - struct cl_io *io = lcc->lcc_io; - struct cl_page *page = lcc->lcc_page; - - cl_page_assume(env, io, page); - - result = cl_io_prepare_write(env, io, page, from, to); - if (result == 0) { - /* - * Add a reference, so that page is not evicted from - * the cache until ->commit_write() is called. - */ - cl_page_get(page); - lu_ref_add(&page->cp_reference, "prepare_write", - current); - } else { - cl_page_unassume(env, io, page); - ll_cl_fini(lcc); - } - /* returning 0 in prepare assumes commit must be called - * afterwards - */ - } else { - result = PTR_ERR(lcc); - } - return result; -} - -int ll_commit_write(struct file *file, struct page *vmpage, unsigned from, - unsigned to) -{ - struct ll_cl_context *lcc; - struct lu_env *env; - struct cl_io *io; - struct cl_page *page; - int result = 0; - - lcc = ll_cl_get(); - env = lcc->lcc_env; - page = lcc->lcc_page; - io = lcc->lcc_io; - - LASSERT(cl_page_is_owned(page, io)); - LASSERT(from <= to); - if (from != to) /* handle short write case. */ - result = cl_io_commit_write(env, io, page, from, to); - if (cl_page_is_owned(page, io)) - cl_page_unassume(env, io, page); - - /* - * Release reference acquired by ll_prepare_write(). - */ - lu_ref_del(&page->cp_reference, "prepare_write", current); - cl_page_put(env, page); - ll_cl_fini(lcc); - return result; -} - static void ll_ra_stats_inc_sbi(struct ll_sb_info *sbi, enum ra_stat which); /** @@ -1251,7 +1116,7 @@ int ll_readpage(struct file *file, struct page *vmpage) struct ll_cl_context *lcc; int result; - lcc = ll_cl_init(file, vmpage, 0); + lcc = ll_cl_init(file, vmpage); if (!IS_ERR(lcc)) { struct lu_env *env = lcc->lcc_env; struct cl_io *io = lcc->lcc_io; @@ -1273,3 +1138,28 @@ int ll_readpage(struct file *file, struct page *vmpage) } return result; } + +int ll_page_sync_io(const struct lu_env *env, struct cl_io *io, + struct cl_page *page, enum cl_req_type crt) +{ + struct cl_2queue *queue; + int result; + + LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE); + + queue = &io->ci_queue; + cl_2queue_init_page(queue, page); + + result = cl_io_submit_sync(env, io, crt, queue, 0); + LASSERT(cl_page_is_owned(page, io)); + + if (crt == CRT_READ) + /* + * in CRT_WRITE case page is left locked even in case of + * error. + */ + cl_page_list_disown(env, io, &queue->c2_qin); + cl_2queue_fini(env, queue); + + return result; +} diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index cc49c21..e8d29e1 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -462,57 +462,211 @@ out: inode_unlock(inode); if (tot_bytes > 0) { - if (iov_iter_rw(iter) == WRITE) { - struct lov_stripe_md *lsm; - - lsm = ccc_inode_lsm_get(inode); - LASSERT(lsm); - lov_stripe_lock(lsm); - obd_adjust_kms(ll_i2dtexp(inode), lsm, file_offset, 0); - lov_stripe_unlock(lsm); - ccc_inode_lsm_put(inode, lsm); - } + struct ccc_io *cio = ccc_env_io(env); + + /* no commit async for direct IO */ + cio->u.write.cui_written += tot_bytes; } cl_env_put(env, &refcheck); return tot_bytes ? : result; } +/** + * Prepare partially written-to page for a write. + */ +static int ll_prepare_partial_page(const struct lu_env *env, struct cl_io *io, + struct cl_page *pg) +{ + struct cl_object *obj = io->ci_obj; + struct cl_attr *attr = ccc_env_thread_attr(env); + loff_t offset = cl_offset(obj, pg->cp_index); + int result; + + cl_object_attr_lock(obj); + result = cl_object_attr_get(env, obj, attr); + cl_object_attr_unlock(obj); + if (result == 0) { + struct ccc_page *cp; + + cp = cl2ccc_page(cl_page_at(pg, &vvp_device_type)); + + /* + * If are writing to a new page, no need to read old data. + * The extent locking will have updated the KMS, and for our + * purposes here we can treat it like i_size. + */ + if (attr->cat_kms <= offset) { + char *kaddr = kmap_atomic(cp->cpg_page); + + memset(kaddr, 0, cl_page_size(obj)); + kunmap_atomic(kaddr); + } else if (cp->cpg_defer_uptodate) { + cp->cpg_ra_used = 1; + } else { + result = ll_page_sync_io(env, io, pg, CRT_READ); + } + } + return result; +} + static int ll_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata) { + struct ll_cl_context *lcc; + struct lu_env *env; + struct cl_io *io; + struct cl_page *page; + struct cl_object *clob = ll_i2info(mapping->host)->lli_clob; pgoff_t index = pos >> PAGE_CACHE_SHIFT; - struct page *page; - int rc; - unsigned from = pos & (PAGE_CACHE_SIZE - 1); + struct page *vmpage = NULL; + unsigned int from = pos & (PAGE_CACHE_SIZE - 1); + unsigned int to = from + len; + int result = 0; - page = grab_cache_page_write_begin(mapping, index, flags); - if (!page) - return -ENOMEM; + CDEBUG(D_VFSTRACE, "Writing %lu of %d to %d bytes\n", index, from, len); + + lcc = ll_cl_init(file, NULL); + if (IS_ERR(lcc)) { + result = PTR_ERR(lcc); + goto out; + } + + env = lcc->lcc_env; + io = lcc->lcc_io; + + /* To avoid deadlock, try to lock page first. */ + vmpage = grab_cache_page_nowait(mapping, index); + if (unlikely(!vmpage || PageDirty(vmpage))) { + struct ccc_io *cio = ccc_env_io(env); + struct cl_page_list *plist = &cio->u.write.cui_queue; + + /* if the page is already in dirty cache, we have to commit + * the pages right now; otherwise, it may cause deadlock + * because it holds page lock of a dirty page and request for + * more grants. It's okay for the dirty page to be the first + * one in commit page list, though. + */ + if (vmpage && PageDirty(vmpage) && plist->pl_nr > 0) { + unlock_page(vmpage); + page_cache_release(vmpage); + vmpage = NULL; + } - *pagep = page; + /* commit pages and then wait for page lock */ + result = vvp_io_write_commit(env, io); + if (result < 0) + goto out; - rc = ll_prepare_write(file, page, from, from + len); - if (rc) { - unlock_page(page); - page_cache_release(page); + if (!vmpage) { + vmpage = grab_cache_page_write_begin(mapping, index, + flags); + if (!vmpage) { + result = -ENOMEM; + goto out; + } + } } - return rc; + + page = cl_page_find(env, clob, vmpage->index, vmpage, CPT_CACHEABLE); + if (IS_ERR(page)) { + result = PTR_ERR(page); + goto out; + } + + lcc->lcc_page = page; + lu_ref_add(&page->cp_reference, "cl_io", io); + + cl_page_assume(env, io, page); + if (!PageUptodate(vmpage)) { + /* + * We're completely overwriting an existing page, + * so _don't_ set it up to date until commit_write + */ + if (from == 0 && to == PAGE_SIZE) { + CL_PAGE_HEADER(D_PAGE, env, page, "full page write\n"); + POISON_PAGE(vmpage, 0x11); + } else { + /* TODO: can be optimized at OSC layer to check if it + * is a lockless IO. In that case, it's not necessary + * to read the data. + */ + result = ll_prepare_partial_page(env, io, page); + if (result == 0) + SetPageUptodate(vmpage); + } + } + if (result < 0) + cl_page_unassume(env, io, page); +out: + if (result < 0) { + if (vmpage) { + unlock_page(vmpage); + page_cache_release(vmpage); + } + if (!IS_ERR(lcc)) + ll_cl_fini(lcc); + } else { + *pagep = vmpage; + *fsdata = lcc; + } + return result; } static int ll_write_end(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned copied, - struct page *page, void *fsdata) + struct page *vmpage, void *fsdata) { + struct ll_cl_context *lcc = fsdata; + struct lu_env *env; + struct cl_io *io; + struct ccc_io *cio; + struct cl_page *page; unsigned from = pos & (PAGE_CACHE_SIZE - 1); - int rc; + bool unplug = false; + int result = 0; + + page_cache_release(vmpage); + + env = lcc->lcc_env; + page = lcc->lcc_page; + io = lcc->lcc_io; + cio = ccc_env_io(env); + + LASSERT(cl_page_is_owned(page, io)); + if (copied > 0) { + struct cl_page_list *plist = &cio->u.write.cui_queue; + + lcc->lcc_page = NULL; /* page will be queued */ + + /* Add it into write queue */ + cl_page_list_add(plist, page); + if (plist->pl_nr == 1) /* first page */ + cio->u.write.cui_from = from; + else + LASSERT(from == 0); + cio->u.write.cui_to = from + copied; + + /* We may have one full RPC, commit it soon */ + if (plist->pl_nr >= PTLRPC_MAX_BRW_PAGES) + unplug = true; + + CL_PAGE_DEBUG(D_VFSTRACE, env, page, + "queued page: %d.\n", plist->pl_nr); + } else { + cl_page_disown(env, io, page); + + /* page list is not contiguous now, commit it now */ + unplug = true; + } - rc = ll_commit_write(file, page, from, from + copied); - unlock_page(page); - page_cache_release(page); + if (unplug || + file->f_flags & O_SYNC || IS_SYNC(file_inode(file))) + result = vvp_io_write_commit(env, io); - return rc ?: copied; + ll_cl_fini(lcc); + return result >= 0 ? copied : result; } #ifdef CONFIG_MIGRATION diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index bb39337..9abde11 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -44,17 +44,15 @@ #include "../include/cl_object.h" #include "llite_internal.h" -int vvp_io_init(const struct lu_env *env, - struct cl_object *obj, struct cl_io *io); -int vvp_lock_init(const struct lu_env *env, - struct cl_object *obj, struct cl_lock *lock, - const struct cl_io *io); +int vvp_io_init(const struct lu_env *env, struct cl_object *obj, + struct cl_io *io); +int vvp_lock_init(const struct lu_env *env, struct cl_object *obj, + struct cl_lock *lock, const struct cl_io *io); int vvp_page_init(const struct lu_env *env, struct cl_object *obj, struct cl_page *page, struct page *vmpage); struct lu_object *vvp_object_alloc(const struct lu_env *env, const struct lu_object_header *hdr, struct lu_device *dev); - struct ccc_object *cl_inode2ccc(struct inode *inode); extern const struct file_operations vvp_dump_pgcache_file_ops; diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index ffe301b..f4a13847 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -101,6 +101,27 @@ static bool can_populate_pages(const struct lu_env *env, struct cl_io *io, * */ +static int vvp_io_write_iter_init(const struct lu_env *env, + const struct cl_io_slice *ios) +{ + struct ccc_io *cio = cl2ccc_io(env, ios); + + cl_page_list_init(&cio->u.write.cui_queue); + cio->u.write.cui_written = 0; + cio->u.write.cui_from = 0; + cio->u.write.cui_to = PAGE_SIZE; + + return 0; +} + +static void vvp_io_write_iter_fini(const struct lu_env *env, + const struct cl_io_slice *ios) +{ + struct ccc_io *cio = cl2ccc_io(env, ios); + + LASSERT(cio->u.write.cui_queue.pl_nr == 0); +} + static int vvp_io_fault_iter_init(const struct lu_env *env, const struct cl_io_slice *ios) { @@ -563,6 +584,183 @@ static void vvp_io_read_fini(const struct lu_env *env, const struct cl_io_slice vvp_io_fini(env, ios); } +static int vvp_io_commit_sync(const struct lu_env *env, struct cl_io *io, + struct cl_page_list *plist, int from, int to) +{ + struct cl_2queue *queue = &io->ci_queue; + struct cl_page *page; + unsigned int bytes = 0; + int rc = 0; + + if (plist->pl_nr == 0) + return 0; + + if (from != 0) { + page = cl_page_list_first(plist); + cl_page_clip(env, page, from, + plist->pl_nr == 1 ? to : PAGE_SIZE); + } + if (to != PAGE_SIZE && plist->pl_nr > 1) { + page = cl_page_list_last(plist); + cl_page_clip(env, page, 0, to); + } + + cl_2queue_init(queue); + cl_page_list_splice(plist, &queue->c2_qin); + rc = cl_io_submit_sync(env, io, CRT_WRITE, queue, 0); + + /* plist is not sorted any more */ + cl_page_list_splice(&queue->c2_qin, plist); + cl_page_list_splice(&queue->c2_qout, plist); + cl_2queue_fini(env, queue); + + if (rc == 0) { + /* calculate bytes */ + bytes = plist->pl_nr << PAGE_SHIFT; + bytes -= from + PAGE_SIZE - to; + + while (plist->pl_nr > 0) { + page = cl_page_list_first(plist); + cl_page_list_del(env, plist, page); + + cl_page_clip(env, page, 0, PAGE_SIZE); + + SetPageUptodate(cl_page_vmpage(env, page)); + cl_page_disown(env, io, page); + + /* held in ll_cl_init() */ + lu_ref_del(&page->cp_reference, "cl_io", io); + cl_page_put(env, page); + } + } + + return bytes > 0 ? bytes : rc; +} + +static void write_commit_callback(const struct lu_env *env, struct cl_io *io, + struct cl_page *page) +{ + const struct cl_page_slice *slice; + struct ccc_page *cp; + struct page *vmpage; + + slice = cl_page_at(page, &vvp_device_type); + cp = cl2ccc_page(slice); + vmpage = cp->cpg_page; + + SetPageUptodate(vmpage); + set_page_dirty(vmpage); + vvp_write_pending(cl2ccc(slice->cpl_obj), cp); + + cl_page_disown(env, io, page); + + /* held in ll_cl_init() */ + lu_ref_del(&page->cp_reference, "cl_io", io); + cl_page_put(env, page); +} + +/* make sure the page list is contiguous */ +static bool page_list_sanity_check(struct cl_page_list *plist) +{ + struct cl_page *page; + pgoff_t index = CL_PAGE_EOF; + + cl_page_list_for_each(page, plist) { + if (index == CL_PAGE_EOF) { + index = page->cp_index; + continue; + } + + ++index; + if (index == page->cp_index) + continue; + + return false; + } + return true; +} + +/* Return how many bytes have queued or written */ +int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) +{ + struct cl_object *obj = io->ci_obj; + struct inode *inode = ccc_object_inode(obj); + struct ccc_io *cio = ccc_env_io(env); + struct cl_page_list *queue = &cio->u.write.cui_queue; + struct cl_page *page; + int rc = 0; + int bytes = 0; + unsigned int npages = cio->u.write.cui_queue.pl_nr; + + if (npages == 0) + return 0; + + CDEBUG(D_VFSTRACE, "commit async pages: %d, from %d, to %d\n", + npages, cio->u.write.cui_from, cio->u.write.cui_to); + + LASSERT(page_list_sanity_check(queue)); + + /* submit IO with async write */ + rc = cl_io_commit_async(env, io, queue, + cio->u.write.cui_from, cio->u.write.cui_to, + write_commit_callback); + npages -= queue->pl_nr; /* already committed pages */ + if (npages > 0) { + /* calculate how many bytes were written */ + bytes = npages << PAGE_SHIFT; + + /* first page */ + bytes -= cio->u.write.cui_from; + if (queue->pl_nr == 0) /* last page */ + bytes -= PAGE_SIZE - cio->u.write.cui_to; + LASSERTF(bytes > 0, "bytes = %d, pages = %d\n", bytes, npages); + + cio->u.write.cui_written += bytes; + + CDEBUG(D_VFSTRACE, "Committed %d pages %d bytes, tot: %ld\n", + npages, bytes, cio->u.write.cui_written); + + /* the first page must have been written. */ + cio->u.write.cui_from = 0; + } + LASSERT(page_list_sanity_check(queue)); + LASSERT(ergo(rc == 0, queue->pl_nr == 0)); + + /* out of quota, try sync write */ + if (rc == -EDQUOT && !cl_io_is_mkwrite(io)) { + rc = vvp_io_commit_sync(env, io, queue, + cio->u.write.cui_from, + cio->u.write.cui_to); + if (rc > 0) { + cio->u.write.cui_written += rc; + rc = 0; + } + } + + /* update inode size */ + ll_merge_lvb(env, inode); + + /* Now the pages in queue were failed to commit, discard them + * unless they were dirtied before. + */ + while (queue->pl_nr > 0) { + page = cl_page_list_first(queue); + cl_page_list_del(env, queue, page); + + if (!PageDirty(cl_page_vmpage(env, page))) + cl_page_discard(env, io, page); + + cl_page_disown(env, io, page); + + /* held in ll_cl_init() */ + lu_ref_del(&page->cp_reference, "cl_io", io); + cl_page_put(env, page); + } + cl_page_list_fini(env, queue); + + return rc; +} + static int vvp_io_write_start(const struct lu_env *env, const struct cl_io_slice *ios) { @@ -596,9 +794,24 @@ static int vvp_io_write_start(const struct lu_env *env, result = generic_file_write_iter(cio->cui_iocb, cio->cui_iter); if (result > 0) { + result = vvp_io_write_commit(env, io); + if (cio->u.write.cui_written > 0) { + result = cio->u.write.cui_written; + io->ci_nob += result; + + CDEBUG(D_VFSTRACE, "write: nob %zd, result: %zd\n", + io->ci_nob, result); + } + } + if (result > 0) { + struct ll_inode_info *lli = ll_i2info(inode); + + spin_lock(&lli->lli_lock); + lli->lli_flags |= LLIF_DATA_MODIFIED; + spin_unlock(&lli->lli_lock); + if (result < cnt) io->ci_continue = 0; - io->ci_nob += result; ll_rw_stats_tally(ll_i2sbi(inode), current->pid, cio->cui_fd, pos, result, WRITE); result = 0; @@ -645,6 +858,21 @@ static int vvp_io_kernel_fault(struct vvp_fault_io *cfio) return -EINVAL; } +static void mkwrite_commit_callback(const struct lu_env *env, struct cl_io *io, + struct cl_page *page) +{ + const struct cl_page_slice *slice; + struct ccc_page *cp; + struct page *vmpage; + + slice = cl_page_at(page, &vvp_device_type); + cp = cl2ccc_page(slice); + vmpage = cp->cpg_page; + + set_page_dirty(vmpage); + vvp_write_pending(cl2ccc(slice->cpl_obj), cp); +} + static int vvp_io_fault_start(const struct lu_env *env, const struct cl_io_slice *ios) { @@ -659,7 +887,7 @@ static int vvp_io_fault_start(const struct lu_env *env, struct page *vmpage = NULL; struct cl_page *page; loff_t size; - pgoff_t last; /* last page in a file data region */ + pgoff_t last_index; if (fio->ft_executable && inode->i_mtime.tv_sec != vio->u.fault.ft_mtime) @@ -705,15 +933,15 @@ static int vvp_io_fault_start(const struct lu_env *env, goto out; } + last_index = cl_index(obj, size - 1); + if (fio->ft_mkwrite) { - pgoff_t last_index; /* * Capture the size while holding the lli_trunc_sem from above * we want to make sure that we complete the mkwrite action * while holding this lock. We need to make sure that we are * not past the end of the file. */ - last_index = cl_index(obj, size - 1); if (last_index < fio->ft_index) { CDEBUG(D_PAGE, "llite: mkwrite and truncate race happened: %p: 0x%lx 0x%lx\n", @@ -745,21 +973,28 @@ static int vvp_io_fault_start(const struct lu_env *env, */ if (fio->ft_mkwrite) { wait_on_page_writeback(vmpage); - if (set_page_dirty(vmpage)) { - struct ccc_page *cp; + if (!PageDirty(vmpage)) { + struct cl_page_list *plist = &io->ci_queue.c2_qin; + int to = PAGE_SIZE; /* vvp_page_assume() calls wait_on_page_writeback(). */ cl_page_assume(env, io, page); - cp = cl2ccc_page(cl_page_at(page, &vvp_device_type)); - vvp_write_pending(cl2ccc(obj), cp); + cl_page_list_init(plist); + cl_page_list_add(plist, page); + + /* size fixup */ + if (last_index == page->cp_index) + to = size & ~PAGE_MASK; /* Do not set Dirty bit here so that in case IO is * started before the page is really made dirty, we * still have chance to detect it. */ - result = cl_page_cache_add(env, io, page, CRT_WRITE); + result = cl_io_commit_async(env, io, plist, 0, to, + mkwrite_commit_callback); LASSERT(cl_page_is_owned(page, io)); + cl_page_list_fini(env, plist); vmpage = NULL; if (result < 0) { @@ -777,15 +1012,14 @@ static int vvp_io_fault_start(const struct lu_env *env, } } - last = cl_index(obj, size - 1); /* * The ft_index is only used in the case of * a mkwrite action. We need to check * our assertions are correct, since * we should have caught this above */ - LASSERT(!fio->ft_mkwrite || fio->ft_index <= last); - if (fio->ft_index == last) + LASSERT(!fio->ft_mkwrite || fio->ft_index <= last_index); + if (fio->ft_index == last_index) /* * Last page is mapped partially. */ @@ -865,234 +1099,6 @@ static int vvp_io_read_page(const struct lu_env *env, return 0; } -static int vvp_page_sync_io(const struct lu_env *env, struct cl_io *io, - struct cl_page *page, struct ccc_page *cp, - enum cl_req_type crt) -{ - struct cl_2queue *queue; - int result; - - LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE); - - queue = &io->ci_queue; - cl_2queue_init_page(queue, page); - - result = cl_io_submit_sync(env, io, crt, queue, 0); - LASSERT(cl_page_is_owned(page, io)); - - if (crt == CRT_READ) - /* - * in CRT_WRITE case page is left locked even in case of - * error. - */ - cl_page_list_disown(env, io, &queue->c2_qin); - cl_2queue_fini(env, queue); - - return result; -} - -/** - * Prepare partially written-to page for a write. - */ -static int vvp_io_prepare_partial(const struct lu_env *env, struct cl_io *io, - struct cl_object *obj, struct cl_page *pg, - struct ccc_page *cp, - unsigned from, unsigned to) -{ - struct cl_attr *attr = ccc_env_thread_attr(env); - loff_t offset = cl_offset(obj, pg->cp_index); - int result; - - cl_object_attr_lock(obj); - result = cl_object_attr_get(env, obj, attr); - cl_object_attr_unlock(obj); - if (result == 0) { - /* - * If are writing to a new page, no need to read old data. - * The extent locking will have updated the KMS, and for our - * purposes here we can treat it like i_size. - */ - if (attr->cat_kms <= offset) { - char *kaddr = kmap_atomic(cp->cpg_page); - - memset(kaddr, 0, cl_page_size(obj)); - kunmap_atomic(kaddr); - } else if (cp->cpg_defer_uptodate) - cp->cpg_ra_used = 1; - else - result = vvp_page_sync_io(env, io, pg, cp, CRT_READ); - /* - * In older implementations, obdo_refresh_inode is called here - * to update the inode because the write might modify the - * object info at OST. However, this has been proven useless, - * since LVB functions will be called when user space program - * tries to retrieve inode attribute. Also, see bug 15909 for - * details. -jay - */ - if (result == 0) - cl_page_export(env, pg, 1); - } - return result; -} - -static int vvp_io_prepare_write(const struct lu_env *env, - const struct cl_io_slice *ios, - const struct cl_page_slice *slice, - unsigned from, unsigned to) -{ - struct cl_object *obj = slice->cpl_obj; - struct ccc_page *cp = cl2ccc_page(slice); - struct cl_page *pg = slice->cpl_page; - struct page *vmpage = cp->cpg_page; - - int result; - - LINVRNT(cl_page_is_vmlocked(env, pg)); - LASSERT(vmpage->mapping->host == ccc_object_inode(obj)); - - result = 0; - - CL_PAGE_HEADER(D_PAGE, env, pg, "preparing: [%d, %d]\n", from, to); - if (!PageUptodate(vmpage)) { - /* - * We're completely overwriting an existing page, so _don't_ - * set it up to date until commit_write - */ - if (from == 0 && to == PAGE_CACHE_SIZE) { - CL_PAGE_HEADER(D_PAGE, env, pg, "full page write\n"); - POISON_PAGE(page, 0x11); - } else - result = vvp_io_prepare_partial(env, ios->cis_io, obj, - pg, cp, from, to); - } else - CL_PAGE_HEADER(D_PAGE, env, pg, "uptodate\n"); - return result; -} - -static int vvp_io_commit_write(const struct lu_env *env, - const struct cl_io_slice *ios, - const struct cl_page_slice *slice, - unsigned from, unsigned to) -{ - struct cl_object *obj = slice->cpl_obj; - struct cl_io *io = ios->cis_io; - struct ccc_page *cp = cl2ccc_page(slice); - struct cl_page *pg = slice->cpl_page; - struct inode *inode = ccc_object_inode(obj); - struct ll_sb_info *sbi = ll_i2sbi(inode); - struct ll_inode_info *lli = ll_i2info(inode); - struct page *vmpage = cp->cpg_page; - - int result; - int tallyop; - loff_t size; - - LINVRNT(cl_page_is_vmlocked(env, pg)); - LASSERT(vmpage->mapping->host == inode); - - LU_OBJECT_HEADER(D_INODE, env, &obj->co_lu, "committing page write\n"); - CL_PAGE_HEADER(D_PAGE, env, pg, "committing: [%d, %d]\n", from, to); - - /* - * queue a write for some time in the future the first time we - * dirty the page. - * - * This is different from what other file systems do: they usually - * just mark page (and some of its buffers) dirty and rely on - * balance_dirty_pages() to start a write-back. Lustre wants write-back - * to be started earlier for the following reasons: - * - * (1) with a large number of clients we need to limit the amount - * of cached data on the clients a lot; - * - * (2) large compute jobs generally want compute-only then io-only - * and the IO should complete as quickly as possible; - * - * (3) IO is batched up to the RPC size and is async until the - * client max cache is hit - * (/sys/fs/lustre/osc/OSC.../max_dirty_mb) - * - */ - if (!PageDirty(vmpage)) { - tallyop = LPROC_LL_DIRTY_MISSES; - result = cl_page_cache_add(env, io, pg, CRT_WRITE); - if (result == 0) { - /* page was added into cache successfully. */ - set_page_dirty(vmpage); - vvp_write_pending(cl2ccc(obj), cp); - } else if (result == -EDQUOT) { - pgoff_t last_index = i_size_read(inode) >> PAGE_CACHE_SHIFT; - bool need_clip = true; - - /* - * Client ran out of disk space grant. Possible - * strategies are: - * - * (a) do a sync write, renewing grant; - * - * (b) stop writing on this stripe, switch to the - * next one. - * - * (b) is a part of "parallel io" design that is the - * ultimate goal. (a) is what "old" client did, and - * what the new code continues to do for the time - * being. - */ - if (last_index > pg->cp_index) { - to = PAGE_CACHE_SIZE; - need_clip = false; - } else if (last_index == pg->cp_index) { - int size_to = i_size_read(inode) & ~PAGE_MASK; - - if (to < size_to) - to = size_to; - } - if (need_clip) - cl_page_clip(env, pg, 0, to); - result = vvp_page_sync_io(env, io, pg, cp, CRT_WRITE); - if (result) - CERROR("Write page %lu of inode %p failed %d\n", - pg->cp_index, inode, result); - } - } else { - tallyop = LPROC_LL_DIRTY_HITS; - result = 0; - } - ll_stats_ops_tally(sbi, tallyop, 1); - - /* Inode should be marked DIRTY even if no new page was marked DIRTY - * because page could have been not flushed between 2 modifications. - * It is important the file is marked DIRTY as soon as the I/O is done - * Indeed, when cache is flushed, file could be already closed and it - * is too late to warn the MDT. - * It is acceptable that file is marked DIRTY even if I/O is dropped - * for some reasons before being flushed to OST. - */ - if (result == 0) { - spin_lock(&lli->lli_lock); - lli->lli_flags |= LLIF_DATA_MODIFIED; - spin_unlock(&lli->lli_lock); - } - - size = cl_offset(obj, pg->cp_index) + to; - - ll_inode_size_lock(inode); - if (result == 0) { - if (size > i_size_read(inode)) { - cl_isize_write_nolock(inode, size); - CDEBUG(D_VFSTRACE, DFID" updating i_size %lu\n", - PFID(lu_object_fid(&obj->co_lu)), - (unsigned long)size); - } - cl_page_export(env, pg, 1); - } else { - if (size > i_size_read(inode)) - cl_page_discard(env, io, pg); - } - ll_inode_size_unlock(inode); - return result; -} - static const struct cl_io_operations vvp_io_ops = { .op = { [CIT_READ] = { @@ -1103,6 +1109,8 @@ static const struct cl_io_operations vvp_io_ops = { }, [CIT_WRITE] = { .cio_fini = vvp_io_fini, + .cio_iter_init = vvp_io_write_iter_init, + .cio_iter_fini = vvp_io_write_iter_fini, .cio_lock = vvp_io_write_lock, .cio_start = vvp_io_write_start, .cio_advance = ccc_io_advance @@ -1130,8 +1138,6 @@ static const struct cl_io_operations vvp_io_ops = { } }, .cio_read_page = vvp_io_read_page, - .cio_prepare_write = vvp_io_prepare_write, - .cio_commit_write = vvp_io_commit_write }; int vvp_io_init(const struct lu_env *env, struct cl_object *obj, diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h index 7dd3162..3d568fc 100644 --- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h @@ -444,8 +444,10 @@ struct lov_thread_info { struct cl_lock_descr lti_ldescr; struct ost_lvb lti_lvb; struct cl_2queue lti_cl2q; + struct cl_page_list lti_plist; struct cl_lock_closure lti_closure; wait_queue_t lti_waiter; + struct cl_attr lti_attr; }; /** diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c index 4296aac..c606490 100644 --- a/drivers/staging/lustre/lustre/lov/lov_io.c +++ b/drivers/staging/lustre/lustre/lov/lov_io.c @@ -543,13 +543,6 @@ static void lov_io_unlock(const struct lu_env *env, LASSERT(rc == 0); } -static struct cl_page_list *lov_io_submit_qin(struct lov_device *ld, - struct cl_page_list *qin, - int idx, int alloc) -{ - return alloc ? &qin[idx] : &ld->ld_emrg[idx]->emrg_page_list; -} - /** * lov implementation of cl_operations::cio_submit() method. It takes a list * of pages in \a queue, splits it into per-stripe sub-lists, invokes @@ -569,25 +562,17 @@ static int lov_io_submit(const struct lu_env *env, const struct cl_io_slice *ios, enum cl_req_type crt, struct cl_2queue *queue) { - struct lov_io *lio = cl2lov_io(env, ios); - struct lov_object *obj = lio->lis_object; - struct lov_device *ld = lu2lov_dev(lov2cl(obj)->co_lu.lo_dev); - struct cl_page_list *qin = &queue->c2_qin; - struct cl_2queue *cl2q = &lov_env_info(env)->lti_cl2q; - struct cl_page_list *stripes_qin = NULL; + struct cl_page_list *qin = &queue->c2_qin; + struct lov_io *lio = cl2lov_io(env, ios); + struct lov_io_sub *sub; + struct cl_page_list *plist = &lov_env_info(env)->lti_plist; struct cl_page *page; - struct cl_page *tmp; int stripe; -#define QIN(stripe) lov_io_submit_qin(ld, stripes_qin, stripe, alloc) - int rc = 0; - int alloc = - !(current->flags & PF_MEMALLOC); if (lio->lis_active_subios == 1) { int idx = lio->lis_single_subio_index; - struct lov_io_sub *sub; LASSERT(idx < lio->lis_nr_subios); sub = lov_sub_get(env, lio, idx); @@ -600,119 +585,120 @@ static int lov_io_submit(const struct lu_env *env, } LASSERT(lio->lis_subs); - if (alloc) { - stripes_qin = - libcfs_kvzalloc(sizeof(*stripes_qin) * - lio->lis_nr_subios, - GFP_NOFS); - if (!stripes_qin) - return -ENOMEM; - - for (stripe = 0; stripe < lio->lis_nr_subios; stripe++) - cl_page_list_init(&stripes_qin[stripe]); - } else { - /* - * If we get here, it means pageout & swap doesn't help. - * In order to not make things worse, even don't try to - * allocate the memory with __GFP_NOWARN. -jay - */ - mutex_lock(&ld->ld_mutex); - lio->lis_mem_frozen = 1; - } - cl_2queue_init(cl2q); - cl_page_list_for_each_safe(page, tmp, qin) { - stripe = lov_page_stripe(page); - cl_page_list_move(QIN(stripe), qin, page); - } + cl_page_list_init(plist); + while (qin->pl_nr > 0) { + struct cl_2queue *cl2q = &lov_env_info(env)->lti_cl2q; - for (stripe = 0; stripe < lio->lis_nr_subios; stripe++) { - struct lov_io_sub *sub; - struct cl_page_list *sub_qin = QIN(stripe); + cl_2queue_init(cl2q); - if (list_empty(&sub_qin->pl_pages)) - continue; + page = cl_page_list_first(qin); + cl_page_list_move(&cl2q->c2_qin, qin, page); + + stripe = lov_page_stripe(page); + while (qin->pl_nr > 0) { + page = cl_page_list_first(qin); + if (stripe != lov_page_stripe(page)) + break; + + cl_page_list_move(&cl2q->c2_qin, qin, page); + } - cl_page_list_splice(sub_qin, &cl2q->c2_qin); sub = lov_sub_get(env, lio, stripe); if (!IS_ERR(sub)) { rc = cl_io_submit_rw(sub->sub_env, sub->sub_io, crt, cl2q); lov_sub_put(sub); - } else + } else { rc = PTR_ERR(sub); - cl_page_list_splice(&cl2q->c2_qin, &queue->c2_qin); + } + + cl_page_list_splice(&cl2q->c2_qin, plist); cl_page_list_splice(&cl2q->c2_qout, &queue->c2_qout); + cl_2queue_fini(env, cl2q); + if (rc != 0) break; } - for (stripe = 0; stripe < lio->lis_nr_subios; stripe++) { - struct cl_page_list *sub_qin = QIN(stripe); + cl_page_list_splice(plist, qin); + cl_page_list_fini(env, plist); - if (list_empty(&sub_qin->pl_pages)) - continue; + return rc; +} + +static int lov_io_commit_async(const struct lu_env *env, + const struct cl_io_slice *ios, + struct cl_page_list *queue, int from, int to, + cl_commit_cbt cb) +{ + struct cl_page_list *plist = &lov_env_info(env)->lti_plist; + struct lov_io *lio = cl2lov_io(env, ios); + struct lov_io_sub *sub; + struct cl_page *page; + int rc = 0; - cl_page_list_splice(sub_qin, qin); + if (lio->lis_active_subios == 1) { + int idx = lio->lis_single_subio_index; + + LASSERT(idx < lio->lis_nr_subios); + sub = lov_sub_get(env, lio, idx); + LASSERT(!IS_ERR(sub)); + LASSERT(sub->sub_io == &lio->lis_single_subio); + rc = cl_io_commit_async(sub->sub_env, sub->sub_io, queue, + from, to, cb); + lov_sub_put(sub); + return rc; } - if (alloc) { - kvfree(stripes_qin); - } else { - int i; + LASSERT(lio->lis_subs); - for (i = 0; i < lio->lis_nr_subios; i++) { - struct cl_io *cio = lio->lis_subs[i].sub_io; + cl_page_list_init(plist); + while (queue->pl_nr > 0) { + int stripe_to = to; + int stripe; - if (cio && cio == &ld->ld_emrg[i]->emrg_subio) - lov_io_sub_fini(env, lio, &lio->lis_subs[i]); + LASSERT(plist->pl_nr == 0); + page = cl_page_list_first(queue); + cl_page_list_move(plist, queue, page); + + stripe = lov_page_stripe(page); + while (queue->pl_nr > 0) { + page = cl_page_list_first(queue); + if (stripe != lov_page_stripe(page)) + break; + + cl_page_list_move(plist, queue, page); } - lio->lis_mem_frozen = 0; - mutex_unlock(&ld->ld_mutex); - } - return rc; -#undef QIN -} + if (queue->pl_nr > 0) /* still has more pages */ + stripe_to = PAGE_SIZE; -static int lov_io_prepare_write(const struct lu_env *env, - const struct cl_io_slice *ios, - const struct cl_page_slice *slice, - unsigned from, unsigned to) -{ - struct lov_io *lio = cl2lov_io(env, ios); - struct cl_page *sub_page = lov_sub_page(slice); - struct lov_io_sub *sub; - int result; + sub = lov_sub_get(env, lio, stripe); + if (!IS_ERR(sub)) { + rc = cl_io_commit_async(sub->sub_env, sub->sub_io, + plist, from, stripe_to, cb); + lov_sub_put(sub); + } else { + rc = PTR_ERR(sub); + break; + } - sub = lov_page_subio(env, lio, slice); - if (!IS_ERR(sub)) { - result = cl_io_prepare_write(sub->sub_env, sub->sub_io, - sub_page, from, to); - lov_sub_put(sub); - } else - result = PTR_ERR(sub); - return result; -} + if (plist->pl_nr > 0) /* short write */ + break; -static int lov_io_commit_write(const struct lu_env *env, - const struct cl_io_slice *ios, - const struct cl_page_slice *slice, - unsigned from, unsigned to) -{ - struct lov_io *lio = cl2lov_io(env, ios); - struct cl_page *sub_page = lov_sub_page(slice); - struct lov_io_sub *sub; - int result; + from = 0; + } - sub = lov_page_subio(env, lio, slice); - if (!IS_ERR(sub)) { - result = cl_io_commit_write(sub->sub_env, sub->sub_io, - sub_page, from, to); - lov_sub_put(sub); - } else - result = PTR_ERR(sub); - return result; + /* for error case, add the page back into the qin list */ + LASSERT(ergo(rc == 0, plist->pl_nr == 0)); + while (plist->pl_nr > 0) { + /* error occurred, add the uncommitted pages back into queue */ + page = cl_page_list_last(plist); + cl_page_list_move_head(queue, plist, page); + } + + return rc; } static int lov_io_fault_start(const struct lu_env *env, @@ -803,16 +789,8 @@ static const struct cl_io_operations lov_io_ops = { .cio_fini = lov_io_fini } }, - .req_op = { - [CRT_READ] = { - .cio_submit = lov_io_submit - }, - [CRT_WRITE] = { - .cio_submit = lov_io_submit - } - }, - .cio_prepare_write = lov_io_prepare_write, - .cio_commit_write = lov_io_commit_write + .cio_submit = lov_io_submit, + .cio_commit_async = lov_io_commit_async, }; /***************************************************************************** @@ -880,15 +858,8 @@ static const struct cl_io_operations lov_empty_io_ops = { .cio_fini = lov_empty_io_fini } }, - .req_op = { - [CRT_READ] = { - .cio_submit = LOV_EMPTY_IMPOSSIBLE - }, - [CRT_WRITE] = { - .cio_submit = LOV_EMPTY_IMPOSSIBLE - } - }, - .cio_commit_write = LOV_EMPTY_IMPOSSIBLE + .cio_submit = LOV_EMPTY_IMPOSSIBLE, + .cio_commit_async = LOV_EMPTY_IMPOSSIBLE }; int lov_io_init_raid0(const struct lu_env *env, struct cl_object *obj, diff --git a/drivers/staging/lustre/lustre/lov/lov_page.c b/drivers/staging/lustre/lustre/lov/lov_page.c index 9728da2..5d9b355 100644 --- a/drivers/staging/lustre/lustre/lov/lov_page.c +++ b/drivers/staging/lustre/lustre/lov/lov_page.c @@ -105,29 +105,6 @@ static void lov_page_assume(const struct lu_env *env, lov_page_own(env, slice, io, 0); } -static int lov_page_cache_add(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *io) -{ - struct lov_io *lio = lov_env_io(env); - struct lov_io_sub *sub; - int rc = 0; - - LINVRNT(lov_page_invariant(slice)); - LINVRNT(!cl2lov_page(slice)->lps_invalid); - - sub = lov_page_subio(env, lio, slice); - if (!IS_ERR(sub)) { - rc = cl_page_cache_add(sub->sub_env, sub->sub_io, - slice->cpl_page->cp_child, CRT_WRITE); - lov_sub_put(sub); - } else { - rc = PTR_ERR(sub); - CL_PAGE_DEBUG(D_ERROR, env, slice->cpl_page, "rc = %d\n", rc); - } - return rc; -} - static int lov_page_print(const struct lu_env *env, const struct cl_page_slice *slice, void *cookie, lu_printer_t printer) @@ -141,11 +118,6 @@ static const struct cl_page_operations lov_page_ops = { .cpo_fini = lov_page_fini, .cpo_own = lov_page_own, .cpo_assume = lov_page_assume, - .io = { - [CRT_WRITE] = { - .cpo_cache_add = lov_page_cache_add - } - }, .cpo_print = lov_page_print }; diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c index cf94284..9b3c5c1 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_io.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c @@ -782,77 +782,29 @@ int cl_io_read_page(const struct lu_env *env, struct cl_io *io, EXPORT_SYMBOL(cl_io_read_page); /** - * Called by write io to prepare page to receive data from user buffer. + * Commit a list of contiguous pages into writeback cache. * - * \see cl_io_operations::cio_prepare_write() + * \returns 0 if all pages committed, or errcode if error occurred. + * \see cl_io_operations::cio_commit_async() */ -int cl_io_prepare_write(const struct lu_env *env, struct cl_io *io, - struct cl_page *page, unsigned from, unsigned to) +int cl_io_commit_async(const struct lu_env *env, struct cl_io *io, + struct cl_page_list *queue, int from, int to, + cl_commit_cbt cb) { const struct cl_io_slice *scan; int result = 0; - LINVRNT(io->ci_type == CIT_WRITE); - LINVRNT(cl_page_is_owned(page, io)); - LINVRNT(io->ci_state == CIS_IO_GOING || io->ci_state == CIS_LOCKED); - LINVRNT(cl_io_invariant(io)); - LASSERT(cl_page_in_io(page, io)); - - cl_io_for_each_reverse(scan, io) { - if (scan->cis_iop->cio_prepare_write) { - const struct cl_page_slice *slice; - - slice = cl_io_slice_page(scan, page); - result = scan->cis_iop->cio_prepare_write(env, scan, - slice, - from, to); - if (result != 0) - break; - } - } - return result; -} -EXPORT_SYMBOL(cl_io_prepare_write); - -/** - * Called by write io after user data were copied into a page. - * - * \see cl_io_operations::cio_commit_write() - */ -int cl_io_commit_write(const struct lu_env *env, struct cl_io *io, - struct cl_page *page, unsigned from, unsigned to) -{ - const struct cl_io_slice *scan; - int result = 0; - - LINVRNT(io->ci_type == CIT_WRITE); - LINVRNT(io->ci_state == CIS_IO_GOING || io->ci_state == CIS_LOCKED); - LINVRNT(cl_io_invariant(io)); - /* - * XXX Uh... not nice. Top level cl_io_commit_write() call (vvp->lov) - * already called cl_page_cache_add(), moving page into CPS_CACHED - * state. Better (and more general) way of dealing with such situation - * is needed. - */ - LASSERT(cl_page_is_owned(page, io) || page->cp_parent); - LASSERT(cl_page_in_io(page, io)); - cl_io_for_each(scan, io) { - if (scan->cis_iop->cio_commit_write) { - const struct cl_page_slice *slice; - - slice = cl_io_slice_page(scan, page); - result = scan->cis_iop->cio_commit_write(env, scan, - slice, - from, to); - if (result != 0) - break; - } + if (!scan->cis_iop->cio_commit_async) + continue; + result = scan->cis_iop->cio_commit_async(env, scan, queue, + from, to, cb); + if (result != 0) + break; } - LINVRNT(result <= 0); return result; } -EXPORT_SYMBOL(cl_io_commit_write); +EXPORT_SYMBOL(cl_io_commit_async); /** * Submits a list of pages for immediate io. @@ -870,13 +822,10 @@ int cl_io_submit_rw(const struct lu_env *env, struct cl_io *io, const struct cl_io_slice *scan; int result = 0; - LINVRNT(crt < ARRAY_SIZE(scan->cis_iop->req_op)); - cl_io_for_each(scan, io) { - if (!scan->cis_iop->req_op[crt].cio_submit) + if (!scan->cis_iop->cio_submit) continue; - result = scan->cis_iop->req_op[crt].cio_submit(env, scan, crt, - queue); + result = scan->cis_iop->cio_submit(env, scan, crt, queue); if (result != 0) break; } @@ -1073,8 +1022,8 @@ EXPORT_SYMBOL(cl_page_list_add); /** * Removes a page from a page list. */ -static void cl_page_list_del(const struct lu_env *env, - struct cl_page_list *plist, struct cl_page *page) +void cl_page_list_del(const struct lu_env *env, struct cl_page_list *plist, + struct cl_page *page) { LASSERT(plist->pl_nr > 0); LINVRNT(plist->pl_owner == current); @@ -1087,6 +1036,7 @@ static void cl_page_list_del(const struct lu_env *env, lu_ref_del_at(&page->cp_reference, &page->cp_queue_ref, "queue", plist); cl_page_put(env, page); } +EXPORT_SYMBOL(cl_page_list_del); /** * Moves a page from one page list to another. @@ -1107,6 +1057,24 @@ void cl_page_list_move(struct cl_page_list *dst, struct cl_page_list *src, EXPORT_SYMBOL(cl_page_list_move); /** + * Moves a page from one page list to the head of another list. + */ +void cl_page_list_move_head(struct cl_page_list *dst, struct cl_page_list *src, + struct cl_page *page) +{ + LASSERT(src->pl_nr > 0); + LINVRNT(dst->pl_owner == current); + LINVRNT(src->pl_owner == current); + + list_move(&page->cp_batch, &dst->pl_pages); + --src->pl_nr; + ++dst->pl_nr; + lu_ref_set_at(&page->cp_reference, &page->cp_queue_ref, "queue", + src, dst); +} +EXPORT_SYMBOL(cl_page_list_move_head); + +/** * splice the cl_page_list, just as list head does */ void cl_page_list_splice(struct cl_page_list *list, struct cl_page_list *head) @@ -1163,8 +1131,7 @@ EXPORT_SYMBOL(cl_page_list_disown); /** * Releases pages from queue. */ -static void cl_page_list_fini(const struct lu_env *env, - struct cl_page_list *plist) +void cl_page_list_fini(const struct lu_env *env, struct cl_page_list *plist) { struct cl_page *page; struct cl_page *temp; @@ -1175,6 +1142,7 @@ static void cl_page_list_fini(const struct lu_env *env, cl_page_list_del(env, plist, page); LASSERT(plist->pl_nr == 0); } +EXPORT_SYMBOL(cl_page_list_fini); /** * Assumes all pages in a queue. diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c index bab8a74..0844a97 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c @@ -1012,44 +1012,6 @@ int cl_page_make_ready(const struct lu_env *env, struct cl_page *pg, EXPORT_SYMBOL(cl_page_make_ready); /** - * Notify layers that high level io decided to place this page into a cache - * for future transfer. - * - * The layer implementing transfer engine (osc) has to register this page in - * its queues. - * - * \pre cl_page_is_owned(pg, io) - * \post cl_page_is_owned(pg, io) - * - * \see cl_page_operations::cpo_cache_add() - */ -int cl_page_cache_add(const struct lu_env *env, struct cl_io *io, - struct cl_page *pg, enum cl_req_type crt) -{ - const struct cl_page_slice *scan; - int result = 0; - - PINVRNT(env, pg, crt < CRT_NR); - PINVRNT(env, pg, cl_page_is_owned(pg, io)); - PINVRNT(env, pg, cl_page_invariant(pg)); - - if (crt >= CRT_NR) - return -EINVAL; - - list_for_each_entry(scan, &pg->cp_layers, cpl_linkage) { - if (!scan->cpl_ops->io[crt].cpo_cache_add) - continue; - - result = scan->cpl_ops->io[crt].cpo_cache_add(env, scan, io); - if (result != 0) - break; - } - CL_PAGE_HEADER(D_TRACE, env, pg, "%d %d\n", crt, result); - return result; -} -EXPORT_SYMBOL(cl_page_cache_add); - -/** * Called if a pge is being written back by kernel's intention. * * \pre cl_page_is_owned(pg, io) diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c index 33ce0c8..6c205f9 100644 --- a/drivers/staging/lustre/lustre/obdecho/echo_client.c +++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c @@ -1085,22 +1085,17 @@ static int cl_echo_cancel0(struct lu_env *env, struct echo_device *ed, return 0; } -static int cl_echo_async_brw(const struct lu_env *env, struct cl_io *io, - enum cl_req_type unused, struct cl_2queue *queue) +static void echo_commit_callback(const struct lu_env *env, struct cl_io *io, + struct cl_page *page) { - struct cl_page *clp; - struct cl_page *temp; - int result = 0; + struct echo_thread_info *info; + struct cl_2queue *queue; - cl_page_list_for_each_safe(clp, temp, &queue->c2_qin) { - int rc; + info = echo_env_info(env); + LASSERT(io == &info->eti_io); - rc = cl_page_cache_add(env, io, clp, CRT_WRITE); - if (rc == 0) - continue; - result = result ?: rc; - } - return result; + queue = &info->eti_queue; + cl_page_list_add(&queue->c2_qout, page); } static int cl_echo_object_brw(struct echo_object *eco, int rw, u64 offset, @@ -1179,7 +1174,9 @@ static int cl_echo_object_brw(struct echo_object *eco, int rw, u64 offset, async = async && (typ == CRT_WRITE); if (async) - rc = cl_echo_async_brw(env, io, typ, queue); + rc = cl_io_commit_async(env, io, &queue->c2_qin, + 0, PAGE_SIZE, + echo_commit_callback); else rc = cl_io_submit_sync(env, io, typ, queue, 0); CDEBUG(D_INFO, "echo_client %s write returns %d\n", diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index c9d4e3c..3be4b1f 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -879,10 +879,9 @@ int osc_extent_finish(const struct lu_env *env, struct osc_extent *ext, * span a whole chunk on the OST side, or our accounting goes * wrong. Should match the code in filter_grant_check. */ - int offset = oap->oap_page_off & ~PAGE_MASK; - int count = oap->oap_count + (offset & (blocksize - 1)); - int end = (offset + oap->oap_count) & (blocksize - 1); - + int offset = last_off & ~PAGE_MASK; + int count = last_count + (offset & (blocksize - 1)); + int end = (offset + last_count) & (blocksize - 1); if (end) count += blocksize - end; @@ -3131,14 +3130,13 @@ static int discard_cb(const struct lu_env *env, struct cl_io *io, struct cl_page *page = cl_page_top(ops->ops_cl.cpl_page); LASSERT(lock->cll_descr.cld_mode >= CLM_WRITE); - KLASSERT(ergo(page->cp_type == CPT_CACHEABLE, - !PageWriteback(cl_page_vmpage(env, page)))); - KLASSERT(ergo(page->cp_type == CPT_CACHEABLE, - !PageDirty(cl_page_vmpage(env, page)))); /* page is top page. */ info->oti_next_index = osc_index(ops) + 1; if (cl_page_own(env, io, page) == 0) { + KLASSERT(ergo(page->cp_type == CPT_CACHEABLE, + !PageDirty(cl_page_vmpage(env, page)))); + /* discard the page */ cl_page_discard(env, io, page); cl_page_disown(env, io, page); diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index e70f06c..0e06bede 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -453,6 +453,8 @@ int osc_prep_async_page(struct osc_object *osc, struct osc_page *ops, struct page *page, loff_t offset); int osc_queue_async_io(const struct lu_env *env, struct cl_io *io, struct osc_page *ops); +int osc_page_cache_add(const struct lu_env *env, + const struct cl_page_slice *slice, struct cl_io *io); int osc_teardown_async_page(const struct lu_env *env, struct osc_object *obj, struct osc_page *ops); int osc_flush_async_page(const struct lu_env *env, struct cl_io *io, diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h index b3b15d4..906225c 100644 --- a/drivers/staging/lustre/lustre/osc/osc_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_internal.h @@ -83,6 +83,12 @@ struct osc_async_page { #define oap_count oap_brw_page.count #define oap_brw_flags oap_brw_page.flag +static inline struct osc_async_page *brw_page2oap(struct brw_page *pga) +{ + return (struct osc_async_page *)container_of(pga, struct osc_async_page, + oap_brw_page); +} + struct osc_cache_waiter { struct list_head ocw_entry; wait_queue_head_t ocw_waitq; diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c index 1536d31..e9e18a1 100644 --- a/drivers/staging/lustre/lustre/osc/osc_io.c +++ b/drivers/staging/lustre/lustre/osc/osc_io.c @@ -185,6 +185,13 @@ static int osc_io_submit(const struct lu_env *env, return qout->pl_nr > 0 ? 0 : result; } +/** + * This is called when a page is accessed within file in a way that creates + * new page, if one were missing (i.e., if there were a hole at that place in + * the file, or accessed page is beyond the current file size). + * + * Expand stripe KMS if necessary. + */ static void osc_page_touch_at(const struct lu_env *env, struct cl_object *obj, pgoff_t idx, unsigned to) { @@ -208,7 +215,8 @@ static void osc_page_touch_at(const struct lu_env *env, kms > loi->loi_kms ? "" : "not ", loi->loi_kms, kms, loi->loi_lvb.lvb_size); - valid = 0; + attr->cat_mtime = attr->cat_ctime = LTIME_S(CURRENT_TIME); + valid = CAT_MTIME | CAT_CTIME; if (kms > loi->loi_kms) { attr->cat_kms = kms; valid |= CAT_KMS; @@ -221,91 +229,83 @@ static void osc_page_touch_at(const struct lu_env *env, cl_object_attr_unlock(obj); } -/** - * This is called when a page is accessed within file in a way that creates - * new page, if one were missing (i.e., if there were a hole at that place in - * the file, or accessed page is beyond the current file size). Examples: - * ->commit_write() and ->nopage() methods. - * - * Expand stripe KMS if necessary. - */ -static void osc_page_touch(const struct lu_env *env, - struct osc_page *opage, unsigned to) -{ - struct cl_page *page = opage->ops_cl.cpl_page; - struct cl_object *obj = opage->ops_cl.cpl_obj; - - osc_page_touch_at(env, obj, page->cp_index, to); -} - -/** - * Implements cl_io_operations::cio_prepare_write() method for osc layer. - * - * \retval -EIO transfer initiated against this osc will most likely fail - * \retval 0 transfer initiated against this osc will most likely succeed. - * - * The reason for this check is to immediately return an error to the caller - * in the case of a deactivated import. Note, that import can be deactivated - * later, while pages, dirtied by this IO, are still in the cache, but this is - * irrelevant, because that would still return an error to the application (if - * it does fsync), but many applications don't do fsync because of performance - * issues, and we wanted to return an -EIO at write time to notify the - * application. - */ -static int osc_io_prepare_write(const struct lu_env *env, - const struct cl_io_slice *ios, - const struct cl_page_slice *slice, - unsigned from, unsigned to) +static int osc_io_commit_async(const struct lu_env *env, + const struct cl_io_slice *ios, + struct cl_page_list *qin, int from, int to, + cl_commit_cbt cb) { - struct osc_device *dev = lu2osc_dev(slice->cpl_obj->co_lu.lo_dev); - struct obd_import *imp = class_exp2cliimp(dev->od_exp); + struct cl_io *io = ios->cis_io; struct osc_io *oio = cl2osc_io(env, ios); + struct osc_object *osc = cl2osc(ios->cis_obj); + struct cl_page *page; + struct cl_page *last_page; + struct osc_page *opg; int result = 0; + LASSERT(qin->pl_nr > 0); + + /* Handle partial page cases */ + last_page = cl_page_list_last(qin); + if (oio->oi_lockless) { + page = cl_page_list_first(qin); + if (page == last_page) { + cl_page_clip(env, page, from, to); + } else { + if (from != 0) + cl_page_clip(env, page, from, PAGE_SIZE); + if (to != PAGE_SIZE) + cl_page_clip(env, last_page, 0, to); + } + } + /* - * This implements OBD_BRW_CHECK logic from old client. + * NOTE: here @page is a top-level page. This is done to avoid + * creation of sub-page-list. */ + while (qin->pl_nr > 0) { + struct osc_async_page *oap; - if (!imp || imp->imp_invalid) - result = -EIO; - if (result == 0 && oio->oi_lockless) - /* this page contains `invalid' data, but who cares? - * nobody can access the invalid data. - * in osc_io_commit_write(), we're going to write exact - * [from, to) bytes of this page to OST. -jay - */ - cl_page_export(env, slice->cpl_page, 1); + page = cl_page_list_first(qin); + opg = osc_cl_page_osc(page); + oap = &opg->ops_oap; - return result; -} + if (!list_empty(&oap->oap_rpc_item)) { + CDEBUG(D_CACHE, "Busy oap %p page %p for submit.\n", + oap, opg); + result = -EBUSY; + break; + } -static int osc_io_commit_write(const struct lu_env *env, - const struct cl_io_slice *ios, - const struct cl_page_slice *slice, - unsigned from, unsigned to) -{ - struct osc_io *oio = cl2osc_io(env, ios); - struct osc_page *opg = cl2osc_page(slice); - struct osc_object *obj = cl2osc(opg->ops_cl.cpl_obj); - struct osc_async_page *oap = &opg->ops_oap; + /* The page may be already in dirty cache. */ + if (list_empty(&oap->oap_pending_item)) { + result = osc_page_cache_add(env, &opg->ops_cl, io); + if (result != 0) + break; + } - LASSERT(to > 0); - /* - * XXX instead of calling osc_page_touch() here and in - * osc_io_fault_start() it might be more logical to introduce - * cl_page_touch() method, that generic cl_io_commit_write() and page - * fault code calls. - */ - osc_page_touch(env, cl2osc_page(slice), to); - if (!client_is_remote(osc_export(obj)) && - capable(CFS_CAP_SYS_RESOURCE)) - oap->oap_brw_flags |= OBD_BRW_NOQUOTA; + osc_page_touch_at(env, osc2cl(osc), + opg->ops_cl.cpl_page->cp_index, + page == last_page ? to : PAGE_SIZE); - if (oio->oi_lockless) - /* see osc_io_prepare_write() for lockless io handling. */ - cl_page_clip(env, slice->cpl_page, from, to); + cl_page_list_del(env, qin, page); - return 0; + (*cb)(env, io, page); + /* Can't access page any more. Page can be in transfer and + * complete at any time. + */ + } + + /* for sync write, kernel will wait for this page to be flushed before + * osc_io_end() is called, so release it earlier. + * for mkwrite(), it's known there is no further pages. + */ + if (cl_io_is_sync_write(io) && oio->oi_active) { + osc_extent_release(env, oio->oi_active); + oio->oi_active = NULL; + } + + CDEBUG(D_INFO, "%d %d\n", qin->pl_nr, result); + return result; } static int osc_io_rw_iter_init(const struct lu_env *env, @@ -719,16 +719,8 @@ static const struct cl_io_operations osc_io_ops = { .cio_fini = osc_io_fini } }, - .req_op = { - [CRT_READ] = { - .cio_submit = osc_io_submit - }, - [CRT_WRITE] = { - .cio_submit = osc_io_submit - } - }, - .cio_prepare_write = osc_io_prepare_write, - .cio_commit_write = osc_io_commit_write + .cio_submit = osc_io_submit, + .cio_commit_async = osc_io_commit_async }; /***************************************************************************** diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index 91ff607..eff3b4b 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -89,8 +89,8 @@ static void osc_page_transfer_put(const struct lu_env *env, struct cl_page *page = cl_page_top(opg->ops_cl.cpl_page); if (opg->ops_transfer_pinned) { - lu_ref_del(&page->cp_reference, "transfer", page); opg->ops_transfer_pinned = 0; + lu_ref_del(&page->cp_reference, "transfer", page); cl_page_put(env, page); } } @@ -113,11 +113,9 @@ static void osc_page_transfer_add(const struct lu_env *env, spin_unlock(&obj->oo_seatbelt); } -static int osc_page_cache_add(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *io) +int osc_page_cache_add(const struct lu_env *env, + const struct cl_page_slice *slice, struct cl_io *io) { - struct osc_io *oio = osc_env_io(env); struct osc_page *opg = cl2osc_page(slice); int result; @@ -130,17 +128,6 @@ static int osc_page_cache_add(const struct lu_env *env, else osc_page_transfer_add(env, opg, CRT_WRITE); - /* for sync write, kernel will wait for this page to be flushed before - * osc_io_end() is called, so release it earlier. - * for mkwrite(), it's known there is no further pages. - */ - if (cl_io_is_sync_write(io) || cl_io_is_mkwrite(io)) { - if (oio->oi_active) { - osc_extent_release(env, oio->oi_active); - oio->oi_active = NULL; - } - } - return result; } @@ -231,17 +218,6 @@ static void osc_page_completion_write(const struct lu_env *env, { } -static int osc_page_fail(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *unused) -{ - /* - * Cached read? - */ - LBUG(); - return 0; -} - static const char *osc_list(struct list_head *head) { return list_empty(head) ? "-" : "+"; @@ -393,11 +369,9 @@ static const struct cl_page_operations osc_page_ops = { .cpo_disown = osc_page_disown, .io = { [CRT_READ] = { - .cpo_cache_add = osc_page_fail, .cpo_completion = osc_page_completion_read }, [CRT_WRITE] = { - .cpo_cache_add = osc_page_cache_add, .cpo_completion = osc_page_completion_write } }, diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index c055511b3..1ff497f 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -1734,7 +1734,6 @@ static int brw_interpret(const struct lu_env *env, struct osc_brw_async_args *aa = data; struct osc_extent *ext; struct osc_extent *tmp; - struct cl_object *obj = NULL; struct client_obd *cli = aa->aa_cli; rc = osc_brw_fini_request(req, rc); @@ -1763,24 +1762,17 @@ static int brw_interpret(const struct lu_env *env, rc = -EIO; } - list_for_each_entry_safe(ext, tmp, &aa->aa_exts, oe_link) { - if (!obj && rc == 0) { - obj = osc2cl(ext->oe_obj); - cl_object_get(obj); - } - - list_del_init(&ext->oe_link); - osc_extent_finish(env, ext, 1, rc); - } - LASSERT(list_empty(&aa->aa_exts)); - LASSERT(list_empty(&aa->aa_oaps)); - - if (obj) { + if (rc == 0) { struct obdo *oa = aa->aa_oa; struct cl_attr *attr = &osc_env_info(env)->oti_attr; unsigned long valid = 0; + struct cl_object *obj; + struct osc_async_page *last; + + last = brw_page2oap(aa->aa_ppga[aa->aa_page_count - 1]); + obj = osc2cl(last->oap_obj); - LASSERT(rc == 0); + cl_object_attr_lock(obj); if (oa->o_valid & OBD_MD_FLBLOCKS) { attr->cat_blocks = oa->o_blocks; valid |= CAT_BLOCKS; @@ -1797,15 +1789,39 @@ static int brw_interpret(const struct lu_env *env, attr->cat_ctime = oa->o_ctime; valid |= CAT_CTIME; } - if (valid != 0) { - cl_object_attr_lock(obj); - cl_object_attr_set(env, obj, attr, valid); - cl_object_attr_unlock(obj); + + if (lustre_msg_get_opc(req->rq_reqmsg) == OST_WRITE) { + struct lov_oinfo *loi = cl2osc(obj)->oo_oinfo; + loff_t last_off = last->oap_count + last->oap_obj_off; + + /* Change file size if this is an out of quota or + * direct IO write and it extends the file size + */ + if (loi->loi_lvb.lvb_size < last_off) { + attr->cat_size = last_off; + valid |= CAT_SIZE; + } + /* Extend KMS if it's not a lockless write */ + if (loi->loi_kms < last_off && + oap2osc_page(last)->ops_srvlock == 0) { + attr->cat_kms = last_off; + valid |= CAT_KMS; + } } - cl_object_put(env, obj); + + if (valid != 0) + cl_object_attr_set(env, obj, attr, valid); + cl_object_attr_unlock(obj); } kmem_cache_free(obdo_cachep, aa->aa_oa); + list_for_each_entry_safe(ext, tmp, &aa->aa_exts, oe_link) { + list_del_init(&ext->oe_link); + osc_extent_finish(env, ext, 1, rc); + } + LASSERT(list_empty(&aa->aa_exts)); + LASSERT(list_empty(&aa->aa_oaps)); + cl_req_completion(env, aa->aa_clerq, rc < 0 ? rc : req->rq_bulk->bd_nob_transferred); osc_release_ppga(aa->aa_ppga, aa->aa_page_count); -- cgit v0.10.2 From f56b355ca8ae0a2312da094630790b923b00d8b4 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:31 -0400 Subject: staging/lustre/osc: add weight function for DLM lock Use weigh_ast to decide if a lock covers any pages. In recovery, weigh_ast will be used to decide if a DLM read lock covers any locked pages, or it will be canceled instead being recovered. The problem with the original implementation is that it attached each osc_page to an osc_lock also changed lock state to add every pages for readahead. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/7894 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3321 Reviewed-by: Bobi Jam Reviewed-by: Lai Siyao Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index c7904a9..d5968e0 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -1139,10 +1139,10 @@ static ldlm_policy_res_t ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns, ldlm_policy_res_t result = LDLM_POLICY_CANCEL_LOCK; ldlm_cancel_for_recovery cb = ns->ns_cancel_for_recovery; - lock_res_and_lock(lock); - /* don't check added & count since we want to process all locks - * from unused list + * from unused list. + * It's fine to not take lock to access lock->l_resource since + * the lock has already been granted so it won't change. */ switch (lock->l_resource->lr_type) { case LDLM_EXTENT: @@ -1151,11 +1151,12 @@ static ldlm_policy_res_t ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns, break; default: result = LDLM_POLICY_SKIP_LOCK; + lock_res_and_lock(lock); lock->l_flags |= LDLM_FL_SKIPPED; + unlock_res_and_lock(lock); break; } - unlock_res_and_lock(lock); return result; } diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index 0e06bede..cf87043 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -275,16 +275,6 @@ struct osc_lock { enum osc_lock_state ols_state; /** - * How many pages are using this lock for io, currently only used by - * read-ahead. If non-zero, the underlying dlm lock won't be cancelled - * during recovery to avoid deadlock. see bz16774. - * - * \see osc_page::ops_lock - * \see osc_page_addref_lock(), osc_page_putref_lock() - */ - atomic_t ols_pageref; - - /** * true, if ldlm_lock_addref() was called against * osc_lock::ols_lock. This is used for sanity checking. * @@ -400,16 +390,6 @@ struct osc_page { * Submit time - the time when the page is starting RPC. For debugging. */ unsigned long ops_submit_time; - - /** - * A lock of which we hold a reference covers this page. Only used by - * read-ahead: for a readahead page, we hold it's covering lock to - * prevent it from being canceled during recovery. - * - * \see osc_lock::ols_pageref - * \see osc_page_addref_lock(), osc_page_putref_lock(). - */ - struct cl_lock *ops_lock; }; extern struct kmem_cache *osc_lock_kmem; diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h index 906225c..b7fb01a 100644 --- a/drivers/staging/lustre/lustre/osc/osc_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_internal.h @@ -141,6 +141,7 @@ int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, int osc_lru_reclaim(struct client_obd *cli); extern spinlock_t osc_ast_guard; +unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock); int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg); @@ -181,8 +182,6 @@ static inline struct osc_device *obd2osc_dev(const struct obd_device *d) return container_of0(d->obd_lu_dev, struct osc_device, od_cl.cd_lu_dev); } -int osc_dlm_lock_pageref(struct ldlm_lock *dlm); - extern struct kmem_cache *osc_quota_kmem; struct osc_quota_info { /** linkage for quota hash table */ diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c index 3a8a6d1..978b6ea 100644 --- a/drivers/staging/lustre/lustre/osc/osc_lock.c +++ b/drivers/staging/lustre/lustre/osc/osc_lock.c @@ -51,8 +51,6 @@ * @{ */ -#define _PAGEREF_MAGIC (-10000000) - /***************************************************************************** * * Type conversions. @@ -248,8 +246,6 @@ static void osc_lock_fini(const struct lu_env *env, */ osc_lock_unhold(ols); LASSERT(!ols->ols_lock); - LASSERT(atomic_read(&ols->ols_pageref) == 0 || - atomic_read(&ols->ols_pageref) == _PAGEREF_MAGIC); kmem_cache_free(osc_lock_kmem, ols); } @@ -895,11 +891,88 @@ static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data) return result; } -static unsigned long osc_lock_weigh(const struct lu_env *env, - const struct cl_lock_slice *slice) +static int weigh_cb(const struct lu_env *env, struct cl_io *io, + struct osc_page *ops, void *cbdata) { - /* TODO: check how many pages are covered by this lock */ - return cl2osc(slice->cls_obj)->oo_npages; + struct cl_page *page = ops->ops_cl.cpl_page; + + if (cl_page_is_vmlocked(env, page)) { + (*(unsigned long *)cbdata)++; + return CLP_GANG_ABORT; + } + + return CLP_GANG_OKAY; +} + +static unsigned long osc_lock_weight(const struct lu_env *env, + const struct osc_lock *ols) +{ + struct cl_io *io = &osc_env_info(env)->oti_io; + struct cl_lock_descr *descr = &ols->ols_cl.cls_lock->cll_descr; + struct cl_object *obj = ols->ols_cl.cls_obj; + unsigned long npages = 0; + int result; + + io->ci_obj = cl_object_top(obj); + io->ci_ignore_layout = 1; + result = cl_io_init(env, io, CIT_MISC, io->ci_obj); + if (result != 0) + return result; + + do { + result = osc_page_gang_lookup(env, io, cl2osc(obj), + descr->cld_start, descr->cld_end, + weigh_cb, (void *)&npages); + if (result == CLP_GANG_ABORT) + break; + if (result == CLP_GANG_RESCHED) + cond_resched(); + } while (result != CLP_GANG_OKAY); + cl_io_fini(env, io); + + return npages; +} + +/** + * Get the weight of dlm lock for early cancellation. + */ +unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock) +{ + struct cl_env_nest nest; + struct lu_env *env; + struct osc_lock *lock; + unsigned long weight; + + might_sleep(); + /* + * osc_ldlm_weigh_ast has a complex context since it might be called + * because of lock canceling, or from user's input. We have to make + * a new environment for it. Probably it is implementation safe to use + * the upper context because cl_lock_put don't modify environment + * variables. But just in case .. + */ + env = cl_env_nested_get(&nest); + if (IS_ERR(env)) + /* Mostly because lack of memory, do not eliminate this lock */ + return 1; + + LASSERT(dlmlock->l_resource->lr_type == LDLM_EXTENT); + lock = osc_ast_data_get(dlmlock); + if (!lock) { + /* cl_lock was destroyed because of memory pressure. + * It is much reasonable to assign this type of lock + * a lower cost. + */ + weight = 0; + goto out; + } + + weight = osc_lock_weight(env, lock); + osc_ast_data_put(env, lock); + +out: + cl_env_nested_put(&nest, env); + return weight; } static void osc_lock_build_einfo(const struct lu_env *env, @@ -1468,7 +1541,6 @@ static const struct cl_lock_operations osc_lock_ops = { .clo_delete = osc_lock_delete, .clo_state = osc_lock_state, .clo_cancel = osc_lock_cancel, - .clo_weigh = osc_lock_weigh, .clo_print = osc_lock_print, .clo_fits_into = osc_lock_fits_into, }; @@ -1570,7 +1642,6 @@ int osc_lock_init(const struct lu_env *env, __u32 enqflags = lock->cll_descr.cld_enq_flags; osc_lock_build_einfo(env, lock, clk, &clk->ols_einfo); - atomic_set(&clk->ols_pageref, 0); clk->ols_state = OLS_NEW; clk->ols_flags = osc_enq2ldlm_flags(enqflags); @@ -1597,26 +1668,4 @@ int osc_lock_init(const struct lu_env *env, return result; } -int osc_dlm_lock_pageref(struct ldlm_lock *dlm) -{ - struct osc_lock *olock; - int rc = 0; - - spin_lock(&osc_ast_guard); - olock = dlm->l_ast_data; - /* - * there's a very rare race with osc_page_addref_lock(), but that - * doesn't matter because in the worst case we don't cancel a lock - * which we actually can, that's no harm. - */ - if (olock && - atomic_add_return(_PAGEREF_MAGIC, - &olock->ols_pageref) != _PAGEREF_MAGIC) { - atomic_sub(_PAGEREF_MAGIC, &olock->ols_pageref); - rc = 1; - } - spin_unlock(&osc_ast_guard); - return rc; -} - /** @} osc */ diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index eff3b4b..8dc62fa 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -67,10 +67,6 @@ static int osc_page_protected(const struct lu_env *env, static void osc_page_fini(const struct lu_env *env, struct cl_page_slice *slice) { - struct osc_page *opg = cl2osc_page(slice); - - CDEBUG(D_TRACE, "%p\n", opg); - LASSERT(!opg->ops_lock); } static void osc_page_transfer_get(struct osc_page *opg, const char *label) @@ -139,42 +135,6 @@ void osc_index2policy(ldlm_policy_data_t *policy, const struct cl_object *obj, policy->l_extent.end = cl_offset(obj, end + 1) - 1; } -static int osc_page_addref_lock(const struct lu_env *env, - struct osc_page *opg, - struct cl_lock *lock) -{ - struct osc_lock *olock; - int rc; - - LASSERT(!opg->ops_lock); - - olock = osc_lock_at(lock); - if (atomic_inc_return(&olock->ols_pageref) <= 0) { - atomic_dec(&olock->ols_pageref); - rc = -ENODATA; - } else { - cl_lock_get(lock); - opg->ops_lock = lock; - rc = 0; - } - return rc; -} - -static void osc_page_putref_lock(const struct lu_env *env, - struct osc_page *opg) -{ - struct cl_lock *lock = opg->ops_lock; - struct osc_lock *olock; - - LASSERT(lock); - olock = osc_lock_at(lock); - - atomic_dec(&olock->ols_pageref); - opg->ops_lock = NULL; - - cl_lock_put(env, lock); -} - static int osc_page_is_under_lock(const struct lu_env *env, const struct cl_page_slice *slice, struct cl_io *unused) @@ -185,39 +145,12 @@ static int osc_page_is_under_lock(const struct lu_env *env, lock = cl_lock_at_page(env, slice->cpl_obj, slice->cpl_page, NULL, 1, 0); if (lock) { - if (osc_page_addref_lock(env, cl2osc_page(slice), lock) == 0) - result = -EBUSY; cl_lock_put(env, lock); + result = -EBUSY; } return result; } -static void osc_page_disown(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *io) -{ - struct osc_page *opg = cl2osc_page(slice); - - if (unlikely(opg->ops_lock)) - osc_page_putref_lock(env, opg); -} - -static void osc_page_completion_read(const struct lu_env *env, - const struct cl_page_slice *slice, - int ioret) -{ - struct osc_page *opg = cl2osc_page(slice); - - if (likely(opg->ops_lock)) - osc_page_putref_lock(env, opg); -} - -static void osc_page_completion_write(const struct lu_env *env, - const struct cl_page_slice *slice, - int ioret) -{ -} - static const char *osc_list(struct list_head *head) { return list_empty(head) ? "-" : "+"; @@ -366,15 +299,6 @@ static const struct cl_page_operations osc_page_ops = { .cpo_print = osc_page_print, .cpo_delete = osc_page_delete, .cpo_is_under_lock = osc_page_is_under_lock, - .cpo_disown = osc_page_disown, - .io = { - [CRT_READ] = { - .cpo_completion = osc_page_completion_read - }, - [CRT_WRITE] = { - .cpo_completion = osc_page_completion_write - } - }, .cpo_clip = osc_page_clip, .cpo_cancel = osc_page_cancel, .cpo_flush = osc_page_flush diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 1ff497f..1e378e6 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -3131,8 +3131,6 @@ static int osc_import_event(struct obd_device *obd, */ static int osc_cancel_for_recovery(struct ldlm_lock *lock) { - check_res_locked(lock->l_resource); - /* * Cancel all unused extent lock in granted mode LCK_PR or LCK_CR. * @@ -3141,8 +3139,7 @@ static int osc_cancel_for_recovery(struct ldlm_lock *lock) */ if (lock->l_resource->lr_type == LDLM_EXTENT && (lock->l_granted_mode == LCK_PR || - lock->l_granted_mode == LCK_CR) && - (osc_dlm_lock_pageref(lock) == 0)) + lock->l_granted_mode == LCK_CR) && osc_ldlm_weigh_ast(lock) == 0) return 1; return 0; -- cgit v0.10.2 From 7addf402c1171e875109bb1567171c4c3f8f8229 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:32 -0400 Subject: staging/lustre/clio: remove stackable cl_page completely >From now on, cl_page becomes one to one mapping of vmpage. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/7895 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3321 Reviewed-by: Bobi Jam Reviewed-by: Lai Siyao Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index c3865ec..5b65854 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -322,7 +322,7 @@ struct cl_object_operations { * to be used instead of newly created. */ int (*coo_page_init)(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage); + struct cl_page *page, pgoff_t index); /** * Initialize lock slice for this layer. Called top-to-bottom through * every object layer when a new cl_lock is instantiated. Layer @@ -460,10 +460,6 @@ struct cl_object_header { co_lu.lo_linkage) /** @} cl_object */ -#ifndef pgoff_t -#define pgoff_t unsigned long -#endif - #define CL_PAGE_EOF ((pgoff_t)~0ull) /** \addtogroup cl_page cl_page @@ -727,16 +723,10 @@ struct cl_page { atomic_t cp_ref; /** An object this page is a part of. Immutable after creation. */ struct cl_object *cp_obj; - /** Logical page index within the object. Immutable after creation. */ - pgoff_t cp_index; /** List of slices. Immutable after creation. */ struct list_head cp_layers; - /** Parent page, NULL for top-level page. Immutable after creation. */ - struct cl_page *cp_parent; - /** Lower-layer page. NULL for bottommost page. Immutable after - * creation. - */ - struct cl_page *cp_child; + /** vmpage */ + struct page *cp_vmpage; /** * Page state. This field is const to avoid accidental update, it is * modified only internally within cl_page.c. Protected by a VM lock. @@ -791,6 +781,7 @@ struct cl_page { */ struct cl_page_slice { struct cl_page *cpl_page; + pgoff_t cpl_index; /** * Object slice corresponding to this page slice. Immutable after * creation. @@ -846,11 +837,6 @@ struct cl_page_operations { */ /** - * \return the underlying VM page. Optional. - */ - struct page *(*cpo_vmpage)(const struct lu_env *env, - const struct cl_page_slice *slice); - /** * Called when \a io acquires this page into the exclusive * ownership. When this method returns, it is guaranteed that the is * not owned by other io, and no transfer is going on against @@ -1102,6 +1088,12 @@ static inline int __page_in_use(const struct cl_page *page, int refc) #define cl_page_in_use(pg) __page_in_use(pg, 1) #define cl_page_in_use_noref(pg) __page_in_use(pg, 0) +static inline struct page *cl_page_vmpage(struct cl_page *page) +{ + LASSERT(page->cp_vmpage); + return page->cp_vmpage; +} + /** @} cl_page */ /** \addtogroup cl_lock cl_lock @@ -2729,7 +2721,7 @@ static inline int cl_object_same(struct cl_object *o0, struct cl_object *o1) static inline void cl_object_page_init(struct cl_object *clob, int size) { clob->co_slice_off = cl_object_header(clob)->coh_page_bufsize; - cl_object_header(clob)->coh_page_bufsize += ALIGN(size, 8); + cl_object_header(clob)->coh_page_bufsize += cfs_size_round(size); } static inline void *cl_object_page_slice(struct cl_object *clob, @@ -2774,9 +2766,7 @@ void cl_page_print(const struct lu_env *env, void *cookie, lu_printer_t printer, const struct cl_page *pg); void cl_page_header_print(const struct lu_env *env, void *cookie, lu_printer_t printer, const struct cl_page *pg); -struct page *cl_page_vmpage(const struct lu_env *env, struct cl_page *page); struct cl_page *cl_vmpage_page(struct page *vmpage, struct cl_object *obj); -struct cl_page *cl_page_top(struct cl_page *page); const struct cl_page_slice *cl_page_at(const struct cl_page *page, const struct lu_device_type *dtype); @@ -2868,17 +2858,6 @@ struct cl_lock *cl_lock_at_pgoff(const struct lu_env *env, struct cl_object *obj, pgoff_t index, struct cl_lock *except, int pending, int canceld); -static inline struct cl_lock *cl_lock_at_page(const struct lu_env *env, - struct cl_object *obj, - struct cl_page *page, - struct cl_lock *except, - int pending, int canceld) -{ - LASSERT(cl_object_header(obj) == cl_object_header(page->cp_obj)); - return cl_lock_at_pgoff(env, obj, page->cp_index, except, - pending, canceld); -} - const struct cl_lock_slice *cl_lock_at(const struct cl_lock *lock, const struct lu_device_type *dtype); diff --git a/drivers/staging/lustre/lustre/include/lclient.h b/drivers/staging/lustre/lustre/include/lclient.h index 6c3a30a..c91fb01 100644 --- a/drivers/staging/lustre/lustre/include/lclient.h +++ b/drivers/staging/lustre/lustre/include/lclient.h @@ -238,6 +238,11 @@ static inline struct ccc_page *cl2ccc_page(const struct cl_page_slice *slice) return container_of(slice, struct ccc_page, cpg_cl); } +static inline pgoff_t ccc_index(struct ccc_page *ccc) +{ + return ccc->cpg_cl.cpl_index; +} + struct ccc_device { struct cl_device cdv_cl; struct super_block *cdv_sb; @@ -294,8 +299,6 @@ int ccc_lock_init(const struct lu_env *env, struct cl_object *obj, const struct cl_lock_operations *lkops); int ccc_object_glimpse(const struct lu_env *env, const struct cl_object *obj, struct ost_lvb *lvb); -struct page *ccc_page_vmpage(const struct lu_env *env, - const struct cl_page_slice *slice); int ccc_page_is_under_lock(const struct lu_env *env, const struct cl_page_slice *slice, struct cl_io *io); int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice); diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 065b0f2..55fa0da 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -336,6 +336,8 @@ struct lu_object *ccc_object_alloc(const struct lu_env *env, obj = ccc2lu(vob); hdr = &vob->cob_header; cl_object_header_init(hdr); + hdr->coh_page_bufsize = cfs_size_round(sizeof(struct cl_page)); + lu_object_init(obj, &hdr->coh_lu, dev); lu_object_add_top(&hdr->coh_lu, obj); @@ -450,12 +452,6 @@ static void ccc_object_size_unlock(struct cl_object *obj) * */ -struct page *ccc_page_vmpage(const struct lu_env *env, - const struct cl_page_slice *slice) -{ - return cl2vm_page(slice); -} - int ccc_page_is_under_lock(const struct lu_env *env, const struct cl_page_slice *slice, struct cl_io *io) @@ -471,8 +467,8 @@ int ccc_page_is_under_lock(const struct lu_env *env, if (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED) { result = -EBUSY; } else { - desc->cld_start = page->cp_index; - desc->cld_end = page->cp_index; + desc->cld_start = ccc_index(cl2ccc_page(slice)); + desc->cld_end = ccc_index(cl2ccc_page(slice)); desc->cld_obj = page->cp_obj; desc->cld_mode = CLM_READ; result = cl_queue_match(&io->ci_lockset.cls_done, diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 08fe0ea..bc83147 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -982,6 +982,10 @@ static inline void ll_invalidate_page(struct page *vmpage) if (!mapping) return; + /* + * truncate_complete_page() calls + * a_ops->invalidatepage()->cl_page_delete()->vvp_page_delete(). + */ ll_teardown_mmaps(mapping, offset, offset + PAGE_CACHE_SIZE); truncate_complete_page(mapping, vmpage); } diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index dcccdec..b1375f1 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -290,15 +290,16 @@ void ll_ra_read_ex(struct file *f, struct ll_ra_read *rar) static int cl_read_ahead_page(const struct lu_env *env, struct cl_io *io, struct cl_page_list *queue, struct cl_page *page, - struct page *vmpage) + struct cl_object *clob) { + struct page *vmpage = page->cp_vmpage; struct ccc_page *cp; int rc; rc = 0; cl_page_assume(env, io, page); lu_ref_add(&page->cp_reference, "ra", current); - cp = cl2ccc_page(cl_page_at(page, &vvp_device_type)); + cp = cl2ccc_page(cl_object_page_slice(clob, page)); if (!cp->cpg_defer_uptodate && !PageUptodate(vmpage)) { rc = cl_page_is_under_lock(env, io, page); if (rc == -EBUSY) { @@ -348,7 +349,7 @@ static int ll_read_ahead_page(const struct lu_env *env, struct cl_io *io, vmpage, CPT_CACHEABLE); if (!IS_ERR(page)) { rc = cl_read_ahead_page(env, io, queue, - page, vmpage); + page, clob); if (rc == -ENOLCK) { which = RA_STAT_FAILED_MATCH; msg = "lock match failed"; diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index e8d29e1..e2fea8c 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -165,28 +165,6 @@ static int ll_releasepage(struct page *vmpage, gfp_t gfp_mask) return result; } -static int ll_set_page_dirty(struct page *vmpage) -{ -#if 0 - struct cl_page *page = vvp_vmpage_page_transient(vmpage); - struct vvp_object *obj = cl_inode2vvp(vmpage->mapping->host); - struct vvp_page *cpg; - - /* - * XXX should page method be called here? - */ - LASSERT(&obj->co_cl == page->cp_obj); - cpg = cl2vvp_page(cl_page_at(page, &vvp_device_type)); - /* - * XXX cannot do much here, because page is possibly not locked: - * sys_munmap()->... - * ->unmap_page_range()->zap_pte_range()->set_page_dirty(). - */ - vvp_write_pending(obj, cpg); -#endif - return __set_page_dirty_nobuffers(vmpage); -} - #define MAX_DIRECTIO_SIZE (2*1024*1024*1024UL) static inline int ll_get_user_pages(int rw, unsigned long user_addr, @@ -274,7 +252,7 @@ ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io, * write directly */ if (clp->cp_type == CPT_CACHEABLE) { - struct page *vmpage = cl_page_vmpage(env, clp); + struct page *vmpage = cl_page_vmpage(clp); struct page *src_page; struct page *dst_page; void *src; @@ -478,19 +456,16 @@ out: static int ll_prepare_partial_page(const struct lu_env *env, struct cl_io *io, struct cl_page *pg) { - struct cl_object *obj = io->ci_obj; struct cl_attr *attr = ccc_env_thread_attr(env); - loff_t offset = cl_offset(obj, pg->cp_index); + struct cl_object *obj = io->ci_obj; + struct ccc_page *cp = cl_object_page_slice(obj, pg); + loff_t offset = cl_offset(obj, ccc_index(cp)); int result; cl_object_attr_lock(obj); result = cl_object_attr_get(env, obj, attr); cl_object_attr_unlock(obj); if (result == 0) { - struct ccc_page *cp; - - cp = cl2ccc_page(cl_page_at(pg, &vvp_device_type)); - /* * If are writing to a new page, no need to read old data. * The extent locking will have updated the KMS, and for our @@ -685,7 +660,7 @@ const struct address_space_operations ll_aops = { .direct_IO = ll_direct_IO_26, .writepage = ll_writepage, .writepages = ll_writepages, - .set_page_dirty = ll_set_page_dirty, + .set_page_dirty = __set_page_dirty_nobuffers, .write_begin = ll_write_begin, .write_end = ll_write_end, .invalidatepage = ll_invalidatepage, diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 9abde11..aa06f40 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -49,7 +49,7 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, int vvp_lock_init(const struct lu_env *env, struct cl_object *obj, struct cl_lock *lock, const struct cl_io *io); int vvp_page_init(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage); + struct cl_page *page, pgoff_t index); struct lu_object *vvp_object_alloc(const struct lu_env *env, const struct lu_object_header *hdr, struct lu_device *dev); diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index f4a13847..ac9d615 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -625,7 +625,7 @@ static int vvp_io_commit_sync(const struct lu_env *env, struct cl_io *io, cl_page_clip(env, page, 0, PAGE_SIZE); - SetPageUptodate(cl_page_vmpage(env, page)); + SetPageUptodate(cl_page_vmpage(page)); cl_page_disown(env, io, page); /* held in ll_cl_init() */ @@ -640,17 +640,15 @@ static int vvp_io_commit_sync(const struct lu_env *env, struct cl_io *io, static void write_commit_callback(const struct lu_env *env, struct cl_io *io, struct cl_page *page) { - const struct cl_page_slice *slice; struct ccc_page *cp; - struct page *vmpage; - - slice = cl_page_at(page, &vvp_device_type); - cp = cl2ccc_page(slice); - vmpage = cp->cpg_page; + struct page *vmpage = page->cp_vmpage; + struct cl_object *clob = cl_io_top(io)->ci_obj; SetPageUptodate(vmpage); set_page_dirty(vmpage); - vvp_write_pending(cl2ccc(slice->cpl_obj), cp); + + cp = cl2ccc_page(cl_object_page_slice(clob, page)); + vvp_write_pending(cl2ccc(clob), cp); cl_page_disown(env, io, page); @@ -660,19 +658,22 @@ static void write_commit_callback(const struct lu_env *env, struct cl_io *io, } /* make sure the page list is contiguous */ -static bool page_list_sanity_check(struct cl_page_list *plist) +static bool page_list_sanity_check(struct cl_object *obj, + struct cl_page_list *plist) { struct cl_page *page; pgoff_t index = CL_PAGE_EOF; cl_page_list_for_each(page, plist) { + struct ccc_page *cp = cl_object_page_slice(obj, page); + if (index == CL_PAGE_EOF) { - index = page->cp_index; + index = ccc_index(cp); continue; } ++index; - if (index == page->cp_index) + if (index == ccc_index(cp)) continue; return false; @@ -698,7 +699,7 @@ int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) CDEBUG(D_VFSTRACE, "commit async pages: %d, from %d, to %d\n", npages, cio->u.write.cui_from, cio->u.write.cui_to); - LASSERT(page_list_sanity_check(queue)); + LASSERT(page_list_sanity_check(obj, queue)); /* submit IO with async write */ rc = cl_io_commit_async(env, io, queue, @@ -723,7 +724,7 @@ int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) /* the first page must have been written. */ cio->u.write.cui_from = 0; } - LASSERT(page_list_sanity_check(queue)); + LASSERT(page_list_sanity_check(obj, queue)); LASSERT(ergo(rc == 0, queue->pl_nr == 0)); /* out of quota, try sync write */ @@ -747,7 +748,7 @@ int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) page = cl_page_list_first(queue); cl_page_list_del(env, queue, page); - if (!PageDirty(cl_page_vmpage(env, page))) + if (!PageDirty(cl_page_vmpage(page))) cl_page_discard(env, io, page); cl_page_disown(env, io, page); @@ -861,16 +862,13 @@ static int vvp_io_kernel_fault(struct vvp_fault_io *cfio) static void mkwrite_commit_callback(const struct lu_env *env, struct cl_io *io, struct cl_page *page) { - const struct cl_page_slice *slice; struct ccc_page *cp; - struct page *vmpage; + struct cl_object *clob = cl_io_top(io)->ci_obj; - slice = cl_page_at(page, &vvp_device_type); - cp = cl2ccc_page(slice); - vmpage = cp->cpg_page; + set_page_dirty(page->cp_vmpage); - set_page_dirty(vmpage); - vvp_write_pending(cl2ccc(slice->cpl_obj), cp); + cp = cl2ccc_page(cl_object_page_slice(clob, page)); + vvp_write_pending(cl2ccc(clob), cp); } static int vvp_io_fault_start(const struct lu_env *env, @@ -975,6 +973,7 @@ static int vvp_io_fault_start(const struct lu_env *env, wait_on_page_writeback(vmpage); if (!PageDirty(vmpage)) { struct cl_page_list *plist = &io->ci_queue.c2_qin; + struct ccc_page *cp = cl_object_page_slice(obj, page); int to = PAGE_SIZE; /* vvp_page_assume() calls wait_on_page_writeback(). */ @@ -984,7 +983,7 @@ static int vvp_io_fault_start(const struct lu_env *env, cl_page_list_add(plist, page); /* size fixup */ - if (last_index == page->cp_index) + if (last_index == ccc_index(cp)) to = size & ~PAGE_MASK; /* Do not set Dirty bit here so that in case IO is @@ -1069,7 +1068,7 @@ static int vvp_io_read_page(const struct lu_env *env, if (sbi->ll_ra_info.ra_max_pages_per_file && sbi->ll_ra_info.ra_max_pages) - ras_update(sbi, inode, ras, page->cp_index, + ras_update(sbi, inode, ras, ccc_index(cp), cp->cpg_defer_uptodate); /* Sanity check whether the page is protected by a lock. */ diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c index 11e609e..d9f13c3 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_page.c +++ b/drivers/staging/lustre/lustre/llite/vvp_page.c @@ -136,26 +136,15 @@ static void vvp_page_discard(const struct lu_env *env, struct cl_io *unused) { struct page *vmpage = cl2vm_page(slice); - struct address_space *mapping; struct ccc_page *cpg = cl2ccc_page(slice); - __u64 offset; LASSERT(vmpage); LASSERT(PageLocked(vmpage)); - mapping = vmpage->mapping; - if (cpg->cpg_defer_uptodate && !cpg->cpg_ra_used) - ll_ra_stats_inc(mapping, RA_STAT_DISCARDED); - - offset = vmpage->index << PAGE_SHIFT; - ll_teardown_mmaps(vmpage->mapping, offset, offset + PAGE_SIZE); + ll_ra_stats_inc(vmpage->mapping, RA_STAT_DISCARDED); - /* - * truncate_complete_page() calls - * a_ops->invalidatepage()->cl_page_delete()->vvp_page_delete(). - */ - truncate_complete_page(mapping, vmpage); + ll_invalidate_page(vmpage); } static void vvp_page_delete(const struct lu_env *env, @@ -269,7 +258,7 @@ static void vvp_page_completion_read(const struct lu_env *env, { struct ccc_page *cp = cl2ccc_page(slice); struct page *vmpage = cp->cpg_page; - struct cl_page *page = cl_page_top(slice->cpl_page); + struct cl_page *page = slice->cpl_page; struct inode *inode = ccc_object_inode(page->cp_obj); LASSERT(PageLocked(vmpage)); @@ -394,7 +383,6 @@ static const struct cl_page_operations vvp_page_ops = { .cpo_assume = vvp_page_assume, .cpo_unassume = vvp_page_unassume, .cpo_disown = vvp_page_disown, - .cpo_vmpage = ccc_page_vmpage, .cpo_discard = vvp_page_discard, .cpo_delete = vvp_page_delete, .cpo_export = vvp_page_export, @@ -504,7 +492,6 @@ static const struct cl_page_operations vvp_transient_page_ops = { .cpo_unassume = vvp_transient_page_unassume, .cpo_disown = vvp_transient_page_disown, .cpo_discard = vvp_transient_page_discard, - .cpo_vmpage = ccc_page_vmpage, .cpo_fini = vvp_transient_page_fini, .cpo_is_vmlocked = vvp_transient_page_is_vmlocked, .cpo_print = vvp_page_print, @@ -522,12 +509,14 @@ static const struct cl_page_operations vvp_transient_page_ops = { }; int vvp_page_init(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage) + struct cl_page *page, pgoff_t index) { struct ccc_page *cpg = cl_object_page_slice(obj, page); + struct page *vmpage = page->cp_vmpage; CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + cpg->cpg_cl.cpl_index = index; cpg->cpg_page = vmpage; page_cache_get(vmpage); diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h index 3d568fc..b8e2315 100644 --- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h @@ -613,14 +613,13 @@ int lov_sublock_modify(const struct lu_env *env, struct lov_lock *lov, const struct cl_lock_descr *d, int idx); int lov_page_init(const struct lu_env *env, struct cl_object *ob, - struct cl_page *page, struct page *vmpage); + struct cl_page *page, pgoff_t index); int lovsub_page_init(const struct lu_env *env, struct cl_object *ob, - struct cl_page *page, struct page *vmpage); - + struct cl_page *page, pgoff_t index); int lov_page_init_empty(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage); + struct cl_page *page, pgoff_t index); int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage); + struct cl_page *page, pgoff_t index); struct lu_object *lov_object_alloc(const struct lu_env *env, const struct lu_object_header *hdr, struct lu_device *dev); @@ -791,11 +790,6 @@ static inline struct lovsub_req *cl2lovsub_req(const struct cl_req_slice *slice) return container_of0(slice, struct lovsub_req, lsrq_cl); } -static inline struct cl_page *lov_sub_page(const struct cl_page_slice *slice) -{ - return slice->cpl_page->cp_child; -} - static inline struct lov_io *cl2lov_io(const struct lu_env *env, const struct cl_io_slice *ios) { diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c index c606490..e5b2cfc 100644 --- a/drivers/staging/lustre/lustre/lov/lov_io.c +++ b/drivers/staging/lustre/lustre/lov/lov_io.c @@ -248,10 +248,12 @@ void lov_sub_put(struct lov_io_sub *sub) static int lov_page_stripe(const struct cl_page *page) { struct lovsub_object *subobj; + const struct cl_page_slice *slice; - subobj = lu2lovsub( - lu_object_locate(page->cp_child->cp_obj->co_lu.lo_header, - &lovsub_device_type)); + slice = cl_page_at(page, &lovsub_device_type); + LASSERT(slice->cpl_obj); + + subobj = cl2lovsub(slice->cpl_obj); return subobj->lso_index; } diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c index 5d8a2b6..0159b6f 100644 --- a/drivers/staging/lustre/lustre/lov/lov_object.c +++ b/drivers/staging/lustre/lustre/lov/lov_object.c @@ -67,7 +67,7 @@ struct lov_layout_operations { int (*llo_print)(const struct lu_env *env, void *cookie, lu_printer_t p, const struct lu_object *o); int (*llo_page_init)(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage); + struct cl_page *page, pgoff_t index); int (*llo_lock_init)(const struct lu_env *env, struct cl_object *obj, struct cl_lock *lock, const struct cl_io *io); @@ -193,6 +193,18 @@ static int lov_init_sub(const struct lu_env *env, struct lov_object *lov, return result; } +static int lov_page_slice_fixup(struct lov_object *lov, + struct cl_object *stripe) +{ + struct cl_object_header *hdr = cl_object_header(&lov->lo_cl); + struct cl_object *o; + + cl_object_for_each(o, stripe) + o->co_slice_off += hdr->coh_page_bufsize; + + return cl_object_header(stripe)->coh_page_bufsize; +} + static int lov_init_raid0(const struct lu_env *env, struct lov_device *dev, struct lov_object *lov, const struct cl_object_conf *conf, @@ -222,6 +234,8 @@ static int lov_init_raid0(const struct lu_env *env, r0->lo_sub = libcfs_kvzalloc(r0->lo_nr * sizeof(r0->lo_sub[0]), GFP_NOFS); if (r0->lo_sub) { + int psz = 0; + result = 0; subconf->coc_inode = conf->coc_inode; spin_lock_init(&r0->lo_sub_lock); @@ -254,11 +268,21 @@ static int lov_init_raid0(const struct lu_env *env, if (result == -EAGAIN) { /* try again */ --i; result = 0; + continue; } } else { result = PTR_ERR(stripe); } + + if (result == 0) { + int sz = lov_page_slice_fixup(lov, stripe); + + LASSERT(ergo(psz > 0, psz == sz)); + psz = sz; + } } + if (result == 0) + cl_object_header(&lov->lo_cl)->coh_page_bufsize += psz; } else result = -ENOMEM; out: @@ -824,10 +848,10 @@ static int lov_object_print(const struct lu_env *env, void *cookie, } int lov_page_init(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage) + struct cl_page *page, pgoff_t index) { - return LOV_2DISPATCH_NOLOCK(cl2lov(obj), - llo_page_init, env, obj, page, vmpage); + return LOV_2DISPATCH_NOLOCK(cl2lov(obj), llo_page_init, env, obj, page, + index); } /** diff --git a/drivers/staging/lustre/lustre/lov/lov_page.c b/drivers/staging/lustre/lustre/lov/lov_page.c index 5d9b355..0c508bd 100644 --- a/drivers/staging/lustre/lustre/lov/lov_page.c +++ b/drivers/staging/lustre/lustre/lov/lov_page.c @@ -52,59 +52,6 @@ * Lov page operations. * */ - -static int lov_page_invariant(const struct cl_page_slice *slice) -{ - const struct cl_page *page = slice->cpl_page; - const struct cl_page *sub = lov_sub_page(slice); - - return ergo(sub, - page->cp_child == sub && - sub->cp_parent == page && - page->cp_state == sub->cp_state); -} - -static void lov_page_fini(const struct lu_env *env, - struct cl_page_slice *slice) -{ - struct cl_page *sub = lov_sub_page(slice); - - LINVRNT(lov_page_invariant(slice)); - - if (sub) { - LASSERT(sub->cp_state == CPS_FREEING); - lu_ref_del(&sub->cp_reference, "lov", sub->cp_parent); - sub->cp_parent = NULL; - slice->cpl_page->cp_child = NULL; - cl_page_put(env, sub); - } -} - -static int lov_page_own(const struct lu_env *env, - const struct cl_page_slice *slice, struct cl_io *io, - int nonblock) -{ - struct lov_io *lio = lov_env_io(env); - struct lov_io_sub *sub; - - LINVRNT(lov_page_invariant(slice)); - LINVRNT(!cl2lov_page(slice)->lps_invalid); - - sub = lov_page_subio(env, lio, slice); - if (!IS_ERR(sub)) { - lov_sub_page(slice)->cp_owner = sub->sub_io; - lov_sub_put(sub); - } else - LBUG(); /* Arrgh */ - return 0; -} - -static void lov_page_assume(const struct lu_env *env, - const struct cl_page_slice *slice, struct cl_io *io) -{ - lov_page_own(env, slice, io, 0); -} - static int lov_page_print(const struct lu_env *env, const struct cl_page_slice *slice, void *cookie, lu_printer_t printer) @@ -115,26 +62,17 @@ static int lov_page_print(const struct lu_env *env, } static const struct cl_page_operations lov_page_ops = { - .cpo_fini = lov_page_fini, - .cpo_own = lov_page_own, - .cpo_assume = lov_page_assume, .cpo_print = lov_page_print }; -static void lov_empty_page_fini(const struct lu_env *env, - struct cl_page_slice *slice) -{ - LASSERT(!slice->cpl_page->cp_child); -} - int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage) + struct cl_page *page, pgoff_t index) { struct lov_object *loo = cl2lov(obj); struct lov_layout_raid0 *r0 = lov_r0(loo); struct lov_io *lio = lov_env_io(env); - struct cl_page *subpage; struct cl_object *subobj; + struct cl_object *o; struct lov_io_sub *sub; struct lov_page *lpg = cl_object_page_slice(obj, page); loff_t offset; @@ -142,13 +80,12 @@ int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj, int stripe; int rc; - offset = cl_offset(obj, page->cp_index); + offset = cl_offset(obj, index); stripe = lov_stripe_number(loo->lo_lsm, offset); LASSERT(stripe < r0->lo_nr); rc = lov_stripe_offset(loo->lo_lsm, offset, stripe, &suboff); LASSERT(rc == 0); - lpg->lps_invalid = 1; cl_page_slice_add(page, &lpg->lps_cl, obj, &lov_page_ops); sub = lov_sub_get(env, lio, stripe); @@ -156,35 +93,44 @@ int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj, return PTR_ERR(sub); subobj = lovsub2cl(r0->lo_sub[stripe]); - subpage = cl_page_alloc(sub->sub_env, subobj, cl_index(subobj, suboff), - vmpage, page->cp_type); - if (!IS_ERR(subpage)) { - subpage->cp_parent = page; - page->cp_child = subpage; - lpg->lps_invalid = 0; - } else { - rc = PTR_ERR(subpage); + list_for_each_entry(o, &subobj->co_lu.lo_header->loh_layers, + co_lu.lo_linkage) { + if (o->co_ops->coo_page_init) { + rc = o->co_ops->coo_page_init(sub->sub_env, o, page, + cl_index(subobj, suboff)); + if (rc != 0) + break; + } } lov_sub_put(sub); return rc; } +static int lov_page_empty_print(const struct lu_env *env, + const struct cl_page_slice *slice, + void *cookie, lu_printer_t printer) +{ + struct lov_page *lp = cl2lov_page(slice); + + return (*printer)(env, cookie, LUSTRE_LOV_NAME "-page@%p, empty.\n", + lp); +} + static const struct cl_page_operations lov_empty_page_ops = { - .cpo_fini = lov_empty_page_fini, - .cpo_print = lov_page_print + .cpo_print = lov_page_empty_print }; int lov_page_init_empty(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage) + struct cl_page *page, pgoff_t index) { struct lov_page *lpg = cl_object_page_slice(obj, page); void *addr; cl_page_slice_add(page, &lpg->lps_cl, obj, &lov_empty_page_ops); - addr = kmap(vmpage); + addr = kmap(page->cp_vmpage); memset(addr, 0, cl_page_size(obj)); - kunmap(vmpage); + kunmap(page->cp_vmpage); cl_page_export(env, page, 1); return 0; } diff --git a/drivers/staging/lustre/lustre/lov/lovsub_page.c b/drivers/staging/lustre/lustre/lov/lovsub_page.c index 2d94553..fb4c0cc 100644 --- a/drivers/staging/lustre/lustre/lov/lovsub_page.c +++ b/drivers/staging/lustre/lustre/lov/lovsub_page.c @@ -60,7 +60,7 @@ static const struct cl_page_operations lovsub_page_ops = { }; int lovsub_page_init(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *unused) + struct cl_page *page, pgoff_t ind) { struct lovsub_page *lsb = cl_object_page_slice(obj, page); diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c index 9b3c5c1..86591ce 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_io.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c @@ -693,42 +693,6 @@ cl_io_slice_page(const struct cl_io_slice *ios, struct cl_page *page) } /** - * True iff \a page is within \a io range. - */ -static int cl_page_in_io(const struct cl_page *page, const struct cl_io *io) -{ - int result = 1; - loff_t start; - loff_t end; - pgoff_t idx; - - idx = page->cp_index; - switch (io->ci_type) { - case CIT_READ: - case CIT_WRITE: - /* - * check that [start, end) and [pos, pos + count) extents - * overlap. - */ - if (!cl_io_is_append(io)) { - const struct cl_io_rw_common *crw = &(io->u.ci_rw); - - start = cl_offset(page->cp_obj, idx); - end = cl_offset(page->cp_obj, idx + 1); - result = crw->crw_pos < end && - start < crw->crw_pos + crw->crw_count; - } - break; - case CIT_FAULT: - result = io->u.ci_fault.ft_index == idx; - break; - default: - LBUG(); - } - return result; -} - -/** * Called by read io, when page has to be read from the server. * * \see cl_io_operations::cio_read_page() @@ -743,7 +707,6 @@ int cl_io_read_page(const struct lu_env *env, struct cl_io *io, LINVRNT(io->ci_type == CIT_READ || io->ci_type == CIT_FAULT); LINVRNT(cl_page_is_owned(page, io)); LINVRNT(io->ci_state == CIS_IO_GOING || io->ci_state == CIS_LOCKED); - LINVRNT(cl_page_in_io(page, io)); LINVRNT(cl_io_invariant(io)); queue = &io->ci_queue; @@ -893,7 +856,6 @@ static int cl_io_cancel(const struct lu_env *env, struct cl_io *io, cl_page_list_for_each(page, queue) { int rc; - LINVRNT(cl_page_in_io(page, io)); rc = cl_page_cancel(env, page); result = result ?: rc; } @@ -1229,7 +1191,7 @@ EXPORT_SYMBOL(cl_2queue_init_page); /** * Returns top-level io. * - * \see cl_object_top(), cl_page_top(). + * \see cl_object_top() */ struct cl_io *cl_io_top(struct cl_io *io) { @@ -1292,19 +1254,14 @@ static int cl_req_init(const struct lu_env *env, struct cl_req *req, int result; result = 0; - page = cl_page_top(page); - do { - list_for_each_entry(slice, &page->cp_layers, cpl_linkage) { - dev = lu2cl_dev(slice->cpl_obj->co_lu.lo_dev); - if (dev->cd_ops->cdo_req_init) { - result = dev->cd_ops->cdo_req_init(env, - dev, req); - if (result != 0) - break; - } + list_for_each_entry(slice, &page->cp_layers, cpl_linkage) { + dev = lu2cl_dev(slice->cpl_obj->co_lu.lo_dev); + if (dev->cd_ops->cdo_req_init) { + result = dev->cd_ops->cdo_req_init(env, dev, req); + if (result != 0) + break; } - page = page->cp_child; - } while (page && result == 0); + } return result; } @@ -1375,8 +1332,6 @@ void cl_req_page_add(const struct lu_env *env, struct cl_req_obj *rqo; int i; - page = cl_page_top(page); - LASSERT(list_empty(&page->cp_flight)); LASSERT(!page->cp_req); @@ -1407,8 +1362,6 @@ void cl_req_page_done(const struct lu_env *env, struct cl_page *page) { struct cl_req *req = page->cp_req; - page = cl_page_top(page); - LASSERT(!list_empty(&page->cp_flight)); LASSERT(req->crq_nrpages > 0); diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c index fa9b083..72e6333 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c @@ -84,7 +84,7 @@ int cl_object_header_init(struct cl_object_header *h) lockdep_set_class(&h->coh_lock_guard, &cl_lock_guard_class); lockdep_set_class(&h->coh_attr_guard, &cl_attr_guard_class); INIT_LIST_HEAD(&h->coh_locks); - h->coh_page_bufsize = ALIGN(sizeof(struct cl_page), 8); + h->coh_page_bufsize = 0; } return result; } @@ -138,7 +138,7 @@ EXPORT_SYMBOL(cl_object_get); /** * Returns the top-object for a given \a o. * - * \see cl_page_top(), cl_io_top() + * \see cl_io_top() */ struct cl_object *cl_object_top(struct cl_object *o) { diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c index 0844a97..cb15673 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c @@ -63,18 +63,6 @@ static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg); ((void)sizeof(env), (void)sizeof(page), (void)sizeof !!(exp)) /** - * Internal version of cl_page_top, it should be called if the page is - * known to be not freed, says with page referenced, or radix tree lock held, - * or page owned. - */ -static struct cl_page *cl_page_top_trusted(struct cl_page *page) -{ - while (page->cp_parent) - page = page->cp_parent; - return page; -} - -/** * Internal version of cl_page_get(). * * This function can be used to obtain initial reference to previously @@ -102,14 +90,10 @@ cl_page_at_trusted(const struct cl_page *page, { const struct cl_page_slice *slice; - page = cl_page_top_trusted((struct cl_page *)page); - do { - list_for_each_entry(slice, &page->cp_layers, cpl_linkage) { - if (slice->cpl_obj->co_lu.lo_dev->ld_type == dtype) - return slice; - } - page = page->cp_child; - } while (page); + list_for_each_entry(slice, &page->cp_layers, cpl_linkage) { + if (slice->cpl_obj->co_lu.lo_dev->ld_type == dtype) + return slice; + } return NULL; } @@ -120,7 +104,6 @@ static void cl_page_free(const struct lu_env *env, struct cl_page *page) PASSERT(env, page, list_empty(&page->cp_batch)); PASSERT(env, page, !page->cp_owner); PASSERT(env, page, !page->cp_req); - PASSERT(env, page, !page->cp_parent); PASSERT(env, page, page->cp_state == CPS_FREEING); while (!list_empty(&page->cp_layers)) { @@ -129,7 +112,8 @@ static void cl_page_free(const struct lu_env *env, struct cl_page *page) slice = list_entry(page->cp_layers.next, struct cl_page_slice, cpl_linkage); list_del_init(page->cp_layers.next); - slice->cpl_ops->cpo_fini(env, slice); + if (unlikely(slice->cpl_ops->cpo_fini)) + slice->cpl_ops->cpo_fini(env, slice); } lu_object_ref_del_at(&obj->co_lu, &page->cp_obj_ref, "cl_page", page); cl_object_put(env, obj); @@ -165,7 +149,7 @@ struct cl_page *cl_page_alloc(const struct lu_env *env, cl_object_get(o); lu_object_ref_add_at(&o->co_lu, &page->cp_obj_ref, "cl_page", page); - page->cp_index = ind; + page->cp_vmpage = vmpage; cl_page_state_set_trust(page, CPS_CACHED); page->cp_type = type; INIT_LIST_HEAD(&page->cp_layers); @@ -176,8 +160,8 @@ struct cl_page *cl_page_alloc(const struct lu_env *env, head = o->co_lu.lo_header; list_for_each_entry(o, &head->loh_layers, co_lu.lo_linkage) { if (o->co_ops->coo_page_init) { - result = o->co_ops->coo_page_init(env, o, - page, vmpage); + result = o->co_ops->coo_page_init(env, o, page, + ind); if (result != 0) { cl_page_delete0(env, page); cl_page_free(env, page); @@ -249,27 +233,12 @@ EXPORT_SYMBOL(cl_page_find); static inline int cl_page_invariant(const struct cl_page *pg) { - struct cl_page *parent; - struct cl_page *child; - struct cl_io *owner; - /* * Page invariant is protected by a VM lock. */ LINVRNT(cl_page_is_vmlocked(NULL, pg)); - parent = pg->cp_parent; - child = pg->cp_child; - owner = pg->cp_owner; - - return cl_page_in_use(pg) && - ergo(parent, parent->cp_child == pg) && - ergo(child, child->cp_parent == pg) && - ergo(child, pg->cp_obj != child->cp_obj) && - ergo(parent, pg->cp_obj != parent->cp_obj) && - ergo(owner && parent, - parent->cp_owner == pg->cp_owner->ci_parent) && - ergo(owner && child, child->cp_owner->ci_parent == owner); + return cl_page_in_use_noref(pg); } static void cl_page_state_set0(const struct lu_env *env, @@ -322,13 +291,9 @@ static void cl_page_state_set0(const struct lu_env *env, old = page->cp_state; PASSERT(env, page, allowed_transitions[old][state]); CL_PAGE_HEADER(D_TRACE, env, page, "%d -> %d\n", old, state); - for (; page; page = page->cp_child) { - PASSERT(env, page, page->cp_state == old); - PASSERT(env, page, - equi(state == CPS_OWNED, page->cp_owner)); - - cl_page_state_set_trust(page, state); - } + PASSERT(env, page, page->cp_state == old); + PASSERT(env, page, equi(state == CPS_OWNED, page->cp_owner)); + cl_page_state_set_trust(page, state); } static void cl_page_state_set(const struct lu_env *env, @@ -362,8 +327,6 @@ EXPORT_SYMBOL(cl_page_get); */ void cl_page_put(const struct lu_env *env, struct cl_page *page) { - PASSERT(env, page, atomic_read(&page->cp_ref) > !!page->cp_parent); - CL_PAGE_HEADER(D_TRACE, env, page, "%d\n", atomic_read(&page->cp_ref)); @@ -383,34 +346,10 @@ void cl_page_put(const struct lu_env *env, struct cl_page *page) EXPORT_SYMBOL(cl_page_put); /** - * Returns a VM page associated with a given cl_page. - */ -struct page *cl_page_vmpage(const struct lu_env *env, struct cl_page *page) -{ - const struct cl_page_slice *slice; - - /* - * Find uppermost layer with ->cpo_vmpage() method, and return its - * result. - */ - page = cl_page_top(page); - do { - list_for_each_entry(slice, &page->cp_layers, cpl_linkage) { - if (slice->cpl_ops->cpo_vmpage) - return slice->cpl_ops->cpo_vmpage(env, slice); - } - page = page->cp_child; - } while (page); - LBUG(); /* ->cpo_vmpage() has to be defined somewhere in the stack */ -} -EXPORT_SYMBOL(cl_page_vmpage); - -/** * Returns a cl_page associated with a VM page, and given cl_object. */ struct cl_page *cl_vmpage_page(struct page *vmpage, struct cl_object *obj) { - struct cl_page *top; struct cl_page *page; KLASSERT(PageLocked(vmpage)); @@ -421,36 +360,15 @@ struct cl_page *cl_vmpage_page(struct page *vmpage, struct cl_object *obj) * bottom-to-top pass. */ - /* - * This loop assumes that ->private points to the top-most page. This - * can be rectified easily. - */ - top = (struct cl_page *)vmpage->private; - if (!top) - return NULL; - - for (page = top; page; page = page->cp_child) { - if (cl_object_same(page->cp_obj, obj)) { - cl_page_get_trust(page); - break; - } + page = (struct cl_page *)vmpage->private; + if (page) { + cl_page_get_trust(page); + LASSERT(page->cp_type == CPT_CACHEABLE); } - LASSERT(ergo(page, page->cp_type == CPT_CACHEABLE)); return page; } EXPORT_SYMBOL(cl_vmpage_page); -/** - * Returns the top-page for a given page. - * - * \see cl_object_top(), cl_io_top() - */ -struct cl_page *cl_page_top(struct cl_page *page) -{ - return cl_page_top_trusted(page); -} -EXPORT_SYMBOL(cl_page_top); - const struct cl_page_slice *cl_page_at(const struct cl_page *page, const struct lu_device_type *dtype) { @@ -470,21 +388,14 @@ EXPORT_SYMBOL(cl_page_at); int (*__method)_proto; \ \ __result = 0; \ - __page = cl_page_top(__page); \ - do { \ - list_for_each_entry(__scan, &__page->cp_layers, \ - cpl_linkage) { \ - __method = *(void **)((char *)__scan->cpl_ops + \ - __op); \ - if (__method) { \ - __result = (*__method)(__env, __scan, \ - ## __VA_ARGS__); \ - if (__result != 0) \ - break; \ - } \ - } \ - __page = __page->cp_child; \ - } while (__page && __result == 0); \ + list_for_each_entry(__scan, &__page->cp_layers, cpl_linkage) { \ + __method = *(void **)((char *)__scan->cpl_ops + __op); \ + if (__method) { \ + __result = (*__method)(__env, __scan, ## __VA_ARGS__); \ + if (__result != 0) \ + break; \ + } \ + } \ if (__result > 0) \ __result = 0; \ __result; \ @@ -498,18 +409,11 @@ do { \ ptrdiff_t __op = (_op); \ void (*__method)_proto; \ \ - __page = cl_page_top(__page); \ - do { \ - list_for_each_entry(__scan, &__page->cp_layers, \ - cpl_linkage) { \ - __method = *(void **)((char *)__scan->cpl_ops + \ - __op); \ - if (__method) \ - (*__method)(__env, __scan, \ - ## __VA_ARGS__); \ - } \ - __page = __page->cp_child; \ - } while (__page); \ + list_for_each_entry(__scan, &__page->cp_layers, cpl_linkage) { \ + __method = *(void **)((char *)__scan->cpl_ops + __op); \ + if (__method) \ + (*__method)(__env, __scan, ## __VA_ARGS__); \ + } \ } while (0) #define CL_PAGE_INVOID_REVERSE(_env, _page, _op, _proto, ...) \ @@ -520,20 +424,11 @@ do { \ ptrdiff_t __op = (_op); \ void (*__method)_proto; \ \ - /* get to the bottom page. */ \ - while (__page->cp_child) \ - __page = __page->cp_child; \ - do { \ - list_for_each_entry_reverse(__scan, &__page->cp_layers, \ - cpl_linkage) { \ - __method = *(void **)((char *)__scan->cpl_ops + \ - __op); \ - if (__method) \ - (*__method)(__env, __scan, \ - ## __VA_ARGS__); \ - } \ - __page = __page->cp_parent; \ - } while (__page); \ + list_for_each_entry_reverse(__scan, &__page->cp_layers, cpl_linkage) { \ + __method = *(void **)((char *)__scan->cpl_ops + __op); \ + if (__method) \ + (*__method)(__env, __scan, ## __VA_ARGS__); \ + } \ } while (0) static int cl_page_invoke(const struct lu_env *env, @@ -559,20 +454,17 @@ static void cl_page_invoid(const struct lu_env *env, static void cl_page_owner_clear(struct cl_page *page) { - for (page = cl_page_top(page); page; page = page->cp_child) { - if (page->cp_owner) { - LASSERT(page->cp_owner->ci_owned_nr > 0); - page->cp_owner->ci_owned_nr--; - page->cp_owner = NULL; - page->cp_task = NULL; - } + if (page->cp_owner) { + LASSERT(page->cp_owner->ci_owned_nr > 0); + page->cp_owner->ci_owned_nr--; + page->cp_owner = NULL; + page->cp_task = NULL; } } static void cl_page_owner_set(struct cl_page *page) { - for (page = cl_page_top(page); page; page = page->cp_child) - page->cp_owner->ci_owned_nr++; + page->cp_owner->ci_owned_nr++; } void cl_page_disown0(const struct lu_env *env, @@ -603,8 +495,9 @@ void cl_page_disown0(const struct lu_env *env, */ int cl_page_is_owned(const struct cl_page *pg, const struct cl_io *io) { + struct cl_io *top = cl_io_top((struct cl_io *)io); LINVRNT(cl_object_same(pg->cp_obj, io->ci_obj)); - return pg->cp_state == CPS_OWNED && pg->cp_owner == io; + return pg->cp_state == CPS_OWNED && pg->cp_owner == top; } EXPORT_SYMBOL(cl_page_is_owned); @@ -635,7 +528,6 @@ static int cl_page_own0(const struct lu_env *env, struct cl_io *io, PINVRNT(env, pg, !cl_page_is_owned(pg, io)); - pg = cl_page_top(pg); io = cl_io_top(io); if (pg->cp_state == CPS_FREEING) { @@ -649,7 +541,7 @@ static int cl_page_own0(const struct lu_env *env, struct cl_io *io, if (result == 0) { PASSERT(env, pg, !pg->cp_owner); PASSERT(env, pg, !pg->cp_req); - pg->cp_owner = io; + pg->cp_owner = cl_io_top(io); pg->cp_task = current; cl_page_owner_set(pg); if (pg->cp_state != CPS_FREEING) { @@ -702,12 +594,11 @@ void cl_page_assume(const struct lu_env *env, { PINVRNT(env, pg, cl_object_same(pg->cp_obj, io->ci_obj)); - pg = cl_page_top(pg); io = cl_io_top(io); cl_page_invoid(env, io, pg, CL_PAGE_OP(cpo_assume)); PASSERT(env, pg, !pg->cp_owner); - pg->cp_owner = io; + pg->cp_owner = cl_io_top(io); pg->cp_task = current; cl_page_owner_set(pg); cl_page_state_set(env, pg, CPS_OWNED); @@ -731,7 +622,6 @@ void cl_page_unassume(const struct lu_env *env, PINVRNT(env, pg, cl_page_is_owned(pg, io)); PINVRNT(env, pg, cl_page_invariant(pg)); - pg = cl_page_top(pg); io = cl_io_top(io); cl_page_owner_clear(pg); cl_page_state_set(env, pg, CPS_CACHED); @@ -758,7 +648,6 @@ void cl_page_disown(const struct lu_env *env, { PINVRNT(env, pg, cl_page_is_owned(pg, io)); - pg = cl_page_top(pg); io = cl_io_top(io); cl_page_disown0(env, io, pg); } @@ -791,7 +680,6 @@ EXPORT_SYMBOL(cl_page_discard); */ static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg) { - PASSERT(env, pg, pg == cl_page_top(pg)); PASSERT(env, pg, pg->cp_state != CPS_FREEING); /* @@ -825,7 +713,6 @@ static void cl_page_delete0(const struct lu_env *env, struct cl_page *pg) * Once page reaches cl_page_state::CPS_FREEING, all remaining references will * drain after some time, at which point page will be recycled. * - * \pre pg == cl_page_top(pg) * \pre VM page is locked * \post pg->cp_state == CPS_FREEING * @@ -865,7 +752,6 @@ int cl_page_is_vmlocked(const struct lu_env *env, const struct cl_page *pg) int result; const struct cl_page_slice *slice; - pg = cl_page_top_trusted((struct cl_page *)pg); slice = container_of(pg->cp_layers.next, const struct cl_page_slice, cpl_linkage); PASSERT(env, pg, slice->cpl_ops->cpo_is_vmlocked); @@ -1082,9 +968,8 @@ void cl_page_header_print(const struct lu_env *env, void *cookie, lu_printer_t printer, const struct cl_page *pg) { (*printer)(env, cookie, - "page@%p[%d %p:%lu ^%p_%p %d %d %d %p %p %#x]\n", + "page@%p[%d %p %d %d %d %p %p %#x]\n", pg, atomic_read(&pg->cp_ref), pg->cp_obj, - pg->cp_index, pg->cp_parent, pg->cp_child, pg->cp_state, pg->cp_error, pg->cp_type, pg->cp_owner, pg->cp_req, pg->cp_flags); } @@ -1096,11 +981,7 @@ EXPORT_SYMBOL(cl_page_header_print); void cl_page_print(const struct lu_env *env, void *cookie, lu_printer_t printer, const struct cl_page *pg) { - struct cl_page *scan; - - for (scan = cl_page_top((struct cl_page *)pg); scan; - scan = scan->cp_child) - cl_page_header_print(env, cookie, printer, scan); + cl_page_header_print(env, cookie, printer, pg); CL_PAGE_INVOKE(env, (struct cl_page *)pg, CL_PAGE_OP(cpo_print), (const struct lu_env *env, const struct cl_page_slice *slice, diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c index 6c205f9..db56081 100644 --- a/drivers/staging/lustre/lustre/obdecho/echo_client.c +++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c @@ -81,7 +81,6 @@ struct echo_object_conf { struct echo_page { struct cl_page_slice ep_cl; struct mutex ep_lock; - struct page *ep_vmpage; }; struct echo_lock { @@ -219,12 +218,6 @@ static struct lu_kmem_descr echo_caches[] = { * * @{ */ -static struct page *echo_page_vmpage(const struct lu_env *env, - const struct cl_page_slice *slice) -{ - return cl2echo_page(slice)->ep_vmpage; -} - static int echo_page_own(const struct lu_env *env, const struct cl_page_slice *slice, struct cl_io *io, int nonblock) @@ -273,12 +266,10 @@ static void echo_page_completion(const struct lu_env *env, static void echo_page_fini(const struct lu_env *env, struct cl_page_slice *slice) { - struct echo_page *ep = cl2echo_page(slice); struct echo_object *eco = cl2echo_obj(slice->cpl_obj); - struct page *vmpage = ep->ep_vmpage; atomic_dec(&eco->eo_npages); - page_cache_release(vmpage); + page_cache_release(slice->cpl_page->cp_vmpage); } static int echo_page_prep(const struct lu_env *env, @@ -295,7 +286,8 @@ static int echo_page_print(const struct lu_env *env, struct echo_page *ep = cl2echo_page(slice); (*printer)(env, cookie, LUSTRE_ECHO_CLIENT_NAME"-page@%p %d vm@%p\n", - ep, mutex_is_locked(&ep->ep_lock), ep->ep_vmpage); + ep, mutex_is_locked(&ep->ep_lock), + slice->cpl_page->cp_vmpage); return 0; } @@ -303,7 +295,6 @@ static const struct cl_page_operations echo_page_ops = { .cpo_own = echo_page_own, .cpo_disown = echo_page_disown, .cpo_discard = echo_page_discard, - .cpo_vmpage = echo_page_vmpage, .cpo_fini = echo_page_fini, .cpo_print = echo_page_print, .cpo_is_vmlocked = echo_page_is_vmlocked, @@ -367,13 +358,12 @@ static struct cl_lock_operations echo_lock_ops = { * @{ */ static int echo_page_init(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage) + struct cl_page *page, pgoff_t index) { struct echo_page *ep = cl_object_page_slice(obj, page); struct echo_object *eco = cl2echo_obj(obj); - ep->ep_vmpage = vmpage; - page_cache_get(vmpage); + page_cache_get(page->cp_vmpage); mutex_init(&ep->ep_lock); cl_page_slice_add(page, &ep->ep_cl, obj, &echo_page_ops); atomic_inc(&eco->eo_npages); @@ -568,6 +558,8 @@ static struct lu_object *echo_object_alloc(const struct lu_env *env, obj = &echo_obj2cl(eco)->co_lu; cl_object_header_init(hdr); + hdr->coh_page_bufsize = cfs_size_round(sizeof(struct cl_page)); + lu_object_init(obj, &hdr->coh_lu, dev); lu_object_add_top(&hdr->coh_lu, obj); diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index 3be4b1f..74607933 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -276,7 +276,7 @@ static int osc_extent_sanity_check0(struct osc_extent *ext, page_count = 0; list_for_each_entry(oap, &ext->oe_pages, oap_pending_item) { - pgoff_t index = oap2cl_page(oap)->cp_index; + pgoff_t index = osc_index(oap2osc(oap)); ++page_count; if (index > ext->oe_end || index < ext->oe_start) { rc = 110; @@ -991,19 +991,19 @@ static int osc_extent_truncate(struct osc_extent *ext, pgoff_t trunc_index, /* discard all pages with index greater then trunc_index */ list_for_each_entry_safe(oap, tmp, &ext->oe_pages, oap_pending_item) { - struct cl_page *sub = oap2cl_page(oap); - struct cl_page *page = cl_page_top(sub); + pgoff_t index = osc_index(oap2osc(oap)); + struct cl_page *page = oap2cl_page(oap); LASSERT(list_empty(&oap->oap_rpc_item)); /* only discard the pages with their index greater than * trunc_index, and ... */ - if (sub->cp_index < trunc_index || - (sub->cp_index == trunc_index && partial)) { + if (index < trunc_index || + (index == trunc_index && partial)) { /* accounting how many pages remaining in the chunk * so that we can calculate grants correctly. */ - if (sub->cp_index >> ppc_bits == trunc_chunk) + if (index >> ppc_bits == trunc_chunk) ++pages_in_chunk; continue; } @@ -1256,7 +1256,7 @@ static int osc_make_ready(const struct lu_env *env, struct osc_async_page *oap, int cmd) { struct osc_page *opg = oap2osc_page(oap); - struct cl_page *page = cl_page_top(oap2cl_page(oap)); + struct cl_page *page = oap2cl_page(oap); int result; LASSERT(cmd == OBD_BRW_WRITE); /* no cached reads */ @@ -1271,7 +1271,7 @@ static int osc_refresh_count(const struct lu_env *env, struct osc_async_page *oap, int cmd) { struct osc_page *opg = oap2osc_page(oap); - struct cl_page *page = oap2cl_page(oap); + pgoff_t index = osc_index(oap2osc(oap)); struct cl_object *obj; struct cl_attr *attr = &osc_env_info(env)->oti_attr; @@ -1288,10 +1288,10 @@ static int osc_refresh_count(const struct lu_env *env, if (result < 0) return result; kms = attr->cat_kms; - if (cl_offset(obj, page->cp_index) >= kms) + if (cl_offset(obj, index) >= kms) /* catch race with truncate */ return 0; - else if (cl_offset(obj, page->cp_index + 1) > kms) + else if (cl_offset(obj, index + 1) > kms) /* catch sub-page write at end of file */ return kms % PAGE_CACHE_SIZE; else @@ -1302,7 +1302,7 @@ static int osc_completion(const struct lu_env *env, struct osc_async_page *oap, int cmd, int rc) { struct osc_page *opg = oap2osc_page(oap); - struct cl_page *page = cl_page_top(oap2cl_page(oap)); + struct cl_page *page = oap2cl_page(oap); struct osc_object *obj = cl2osc(opg->ops_cl.cpl_obj); enum cl_req_type crt; int srvlock; @@ -2313,7 +2313,7 @@ int osc_queue_async_io(const struct lu_env *env, struct cl_io *io, OSC_IO_DEBUG(osc, "oap %p page %p added for cmd %d\n", oap, oap->oap_page, oap->oap_cmd & OBD_BRW_RWMASK); - index = oap2cl_page(oap)->cp_index; + index = osc_index(oap2osc(oap)); /* Add this page into extent by the following steps: * 1. if there exists an active extent for this IO, mostly this page @@ -2425,21 +2425,21 @@ int osc_teardown_async_page(const struct lu_env *env, LASSERT(oap->oap_magic == OAP_MAGIC); CDEBUG(D_INFO, "teardown oap %p page %p at index %lu.\n", - oap, ops, oap2cl_page(oap)->cp_index); + oap, ops, osc_index(oap2osc(oap))); osc_object_lock(obj); if (!list_empty(&oap->oap_rpc_item)) { CDEBUG(D_CACHE, "oap %p is not in cache.\n", oap); rc = -EBUSY; } else if (!list_empty(&oap->oap_pending_item)) { - ext = osc_extent_lookup(obj, oap2cl_page(oap)->cp_index); + ext = osc_extent_lookup(obj, osc_index(oap2osc(oap))); /* only truncated pages are allowed to be taken out. * See osc_extent_truncate() and osc_cache_truncate_start() * for details. */ if (ext && ext->oe_state != OES_TRUNC) { OSC_EXTENT_DUMP(D_ERROR, ext, "trunc at %lu.\n", - oap2cl_page(oap)->cp_index); + osc_index(oap2osc(oap))); rc = -EBUSY; } } @@ -2462,7 +2462,7 @@ int osc_flush_async_page(const struct lu_env *env, struct cl_io *io, struct osc_extent *ext = NULL; struct osc_object *obj = cl2osc(ops->ops_cl.cpl_obj); struct cl_page *cp = ops->ops_cl.cpl_page; - pgoff_t index = cp->cp_index; + pgoff_t index = osc_index(ops); struct osc_async_page *oap = &ops->ops_oap; bool unplug = false; int rc = 0; @@ -2477,8 +2477,7 @@ int osc_flush_async_page(const struct lu_env *env, struct cl_io *io, switch (ext->oe_state) { case OES_RPC: case OES_LOCK_DONE: - CL_PAGE_DEBUG(D_ERROR, env, cl_page_top(cp), - "flush an in-rpc page?\n"); + CL_PAGE_DEBUG(D_ERROR, env, cp, "flush an in-rpc page?\n"); LASSERT(0); break; case OES_LOCKING: @@ -2504,7 +2503,7 @@ int osc_flush_async_page(const struct lu_env *env, struct cl_io *io, break; } - rc = cl_page_prep(env, io, cl_page_top(cp), CRT_WRITE); + rc = cl_page_prep(env, io, cp, CRT_WRITE); if (rc) goto out; @@ -2548,7 +2547,7 @@ int osc_cancel_async_page(const struct lu_env *env, struct osc_page *ops) struct osc_extent *ext; struct osc_extent *found = NULL; struct list_head *plist; - pgoff_t index = oap2cl_page(oap)->cp_index; + pgoff_t index = osc_index(ops); int rc = -EBUSY; int cmd; @@ -2611,12 +2610,12 @@ int osc_queue_sync_pages(const struct lu_env *env, struct osc_object *obj, pgoff_t end = 0; list_for_each_entry(oap, list, oap_pending_item) { - struct cl_page *cp = oap2cl_page(oap); + pgoff_t index = osc_index(oap2osc(oap)); - if (cp->cp_index > end) - end = cp->cp_index; - if (cp->cp_index < start) - start = cp->cp_index; + if (index > end) + end = index; + if (index < start) + start = index; ++page_count; mppr <<= (page_count > mppr); } @@ -3033,7 +3032,7 @@ int osc_page_gang_lookup(const struct lu_env *env, struct cl_io *io, break; } - page = cl_page_top(ops->ops_cl.cpl_page); + page = ops->ops_cl.cpl_page; LASSERT(page->cp_type == CPT_CACHEABLE); if (page->cp_state == CPS_FREEING) continue; @@ -3061,7 +3060,7 @@ int osc_page_gang_lookup(const struct lu_env *env, struct cl_io *io, if (res == CLP_GANG_OKAY) res = (*cb)(env, io, ops, cbdata); - page = cl_page_top(ops->ops_cl.cpl_page); + page = ops->ops_cl.cpl_page; lu_ref_del(&page->cp_reference, "gang_lookup", current); cl_page_put(env, page); } @@ -3094,7 +3093,7 @@ static int check_and_discard_cb(const struct lu_env *env, struct cl_io *io, index = osc_index(ops); if (index >= info->oti_fn_index) { struct cl_lock *tmp; - struct cl_page *page = cl_page_top(ops->ops_cl.cpl_page); + struct cl_page *page = ops->ops_cl.cpl_page; /* refresh non-overlapped index */ tmp = cl_lock_at_pgoff(env, lock->cll_descr.cld_obj, index, @@ -3127,7 +3126,7 @@ static int discard_cb(const struct lu_env *env, struct cl_io *io, { struct osc_thread_info *info = osc_env_info(env); struct cl_lock *lock = cbdata; - struct cl_page *page = cl_page_top(ops->ops_cl.cpl_page); + struct cl_page *page = ops->ops_cl.cpl_page; LASSERT(lock->cll_descr.cld_mode >= CLM_WRITE); @@ -3135,7 +3134,7 @@ static int discard_cb(const struct lu_env *env, struct cl_io *io, info->oti_next_index = osc_index(ops) + 1; if (cl_page_own(env, io, page) == 0) { KLASSERT(ergo(page->cp_type == CPT_CACHEABLE, - !PageDirty(cl_page_vmpage(env, page)))); + !PageDirty(cl_page_vmpage(page)))); /* discard the page */ cl_page_discard(env, io, page); diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index cf87043..89552d7 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -416,7 +416,7 @@ struct lu_object *osc_object_alloc(const struct lu_env *env, const struct lu_object_header *hdr, struct lu_device *dev); int osc_page_init(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage); + struct cl_page *page, pgoff_t ind); void osc_index2policy (ldlm_policy_data_t *policy, const struct cl_object *obj, pgoff_t start, pgoff_t end); @@ -553,6 +553,11 @@ static inline struct osc_page *oap2osc(struct osc_async_page *oap) return container_of0(oap, struct osc_page, ops_oap); } +static inline pgoff_t osc_index(struct osc_page *opg) +{ + return opg->ops_cl.cpl_index; +} + static inline struct cl_page *oap2cl_page(struct osc_async_page *oap) { return oap2osc(oap)->ops_cl.cpl_page; @@ -563,11 +568,6 @@ static inline struct osc_page *oap2osc_page(struct osc_async_page *oap) return (struct osc_page *)container_of(oap, struct osc_page, ops_oap); } -static inline pgoff_t osc_index(struct osc_page *opg) -{ - return opg->ops_cl.cpl_page->cp_index; -} - static inline struct osc_lock *cl2osc_lock(const struct cl_lock_slice *slice) { LINVRNT(osc_is_object(&slice->cls_obj->co_lu)); diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c index e9e18a1..1ae8a22 100644 --- a/drivers/staging/lustre/lustre/osc/osc_io.c +++ b/drivers/staging/lustre/lustre/osc/osc_io.c @@ -68,11 +68,15 @@ static struct osc_io *cl2osc_io(const struct lu_env *env, return oio; } -static struct osc_page *osc_cl_page_osc(struct cl_page *page) +static struct osc_page *osc_cl_page_osc(struct cl_page *page, + struct osc_object *osc) { const struct cl_page_slice *slice; - slice = cl_page_at(page, &osc_device_type); + if (osc) + slice = cl_object_page_slice(&osc->oo_cl, page); + else + slice = cl_page_at(page, &osc_device_type); LASSERT(slice); return cl2osc_page(slice); @@ -137,7 +141,7 @@ static int osc_io_submit(const struct lu_env *env, io = page->cp_owner; LASSERT(io); - opg = osc_cl_page_osc(page); + opg = osc_cl_page_osc(page, osc); oap = &opg->ops_oap; LASSERT(osc == oap->oap_obj); @@ -258,15 +262,11 @@ static int osc_io_commit_async(const struct lu_env *env, } } - /* - * NOTE: here @page is a top-level page. This is done to avoid - * creation of sub-page-list. - */ while (qin->pl_nr > 0) { struct osc_async_page *oap; page = cl_page_list_first(qin); - opg = osc_cl_page_osc(page); + opg = osc_cl_page_osc(page, osc); oap = &opg->ops_oap; if (!list_empty(&oap->oap_rpc_item)) { @@ -283,8 +283,7 @@ static int osc_io_commit_async(const struct lu_env *env, break; } - osc_page_touch_at(env, osc2cl(osc), - opg->ops_cl.cpl_page->cp_index, + osc_page_touch_at(env, osc2cl(osc), osc_index(opg), page == last_page ? to : PAGE_SIZE); cl_page_list_del(env, qin, page); @@ -403,14 +402,9 @@ static int trunc_check_cb(const struct lu_env *env, struct cl_io *io, CL_PAGE_DEBUG(D_ERROR, env, page, "exists %llu/%s.\n", start, current->comm); - { - struct page *vmpage = cl_page_vmpage(env, page); - - if (PageLocked(vmpage)) - CDEBUG(D_CACHE, "page %p index %lu locked for %d.\n", - ops, page->cp_index, - (oap->oap_cmd & OBD_BRW_RWMASK)); - } + if (PageLocked(page->cp_vmpage)) + CDEBUG(D_CACHE, "page %p index %lu locked for %d.\n", + ops, osc_index(ops), oap->oap_cmd & OBD_BRW_RWMASK); return CLP_GANG_OKAY; } @@ -788,18 +782,21 @@ static void osc_req_attr_set(const struct lu_env *env, oa->o_valid |= OBD_MD_FLID; } if (flags & OBD_MD_FLHANDLE) { + struct cl_object *subobj; + clerq = slice->crs_req; LASSERT(!list_empty(&clerq->crq_pages)); apage = container_of(clerq->crq_pages.next, struct cl_page, cp_flight); - opg = osc_cl_page_osc(apage); - apage = opg->ops_cl.cpl_page; /* now apage is a sub-page */ - lock = cl_lock_at_page(env, apage->cp_obj, apage, NULL, 1, 1); + opg = osc_cl_page_osc(apage, NULL); + subobj = opg->ops_cl.cpl_obj; + lock = cl_lock_at_pgoff(env, subobj, osc_index(opg), + NULL, 1, 1); if (!lock) { struct cl_object_header *head; struct cl_lock *scan; - head = cl_object_header(apage->cp_obj); + head = cl_object_header(subobj); list_for_each_entry(scan, &head->coh_locks, cll_linkage) CL_LOCK_DEBUG(D_ERROR, env, scan, "no cover page!\n"); diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index 8dc62fa..3e0a8c3 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -64,14 +64,9 @@ static int osc_page_protected(const struct lu_env *env, * Page operations. * */ -static void osc_page_fini(const struct lu_env *env, - struct cl_page_slice *slice) -{ -} - static void osc_page_transfer_get(struct osc_page *opg, const char *label) { - struct cl_page *page = cl_page_top(opg->ops_cl.cpl_page); + struct cl_page *page = opg->ops_cl.cpl_page; LASSERT(!opg->ops_transfer_pinned); cl_page_get(page); @@ -82,7 +77,7 @@ static void osc_page_transfer_get(struct osc_page *opg, const char *label) static void osc_page_transfer_put(const struct lu_env *env, struct osc_page *opg) { - struct cl_page *page = cl_page_top(opg->ops_cl.cpl_page); + struct cl_page *page = opg->ops_cl.cpl_page; if (opg->ops_transfer_pinned) { opg->ops_transfer_pinned = 0; @@ -139,11 +134,12 @@ static int osc_page_is_under_lock(const struct lu_env *env, const struct cl_page_slice *slice, struct cl_io *unused) { + struct osc_page *opg = cl2osc_page(slice); struct cl_lock *lock; int result = -ENODATA; - lock = cl_lock_at_page(env, slice->cpl_obj, slice->cpl_page, - NULL, 1, 0); + lock = cl_lock_at_pgoff(env, slice->cpl_obj, osc_index(opg), + NULL, 1, 0); if (lock) { cl_lock_put(env, lock); result = -EBUSY; @@ -173,8 +169,8 @@ static int osc_page_print(const struct lu_env *env, struct osc_object *obj = cl2osc(slice->cpl_obj); struct client_obd *cli = &osc_export(obj)->exp_obd->u.cli; - return (*printer)(env, cookie, LUSTRE_OSC_NAME "-page@%p: 1< %#x %d %u %s %s > 2< %llu %u %u %#x %#x | %p %p %p > 3< %s %p %d %lu %d > 4< %d %d %d %lu %s | %s %s %s %s > 5< %s %s %s %s | %d %s | %d %s %s>\n", - opg, + return (*printer)(env, cookie, LUSTRE_OSC_NAME "-page@%p %lu: 1< %#x %d %u %s %s > 2< %llu %u %u %#x %#x | %p %p %p > 3< %s %p %d %lu %d > 4< %d %d %d %lu %s | %s %s %s %s > 5< %s %s %s %s | %d %s | %d %s %s>\n", + opg, osc_index(opg), /* 1 */ oap->oap_magic, oap->oap_cmd, oap->oap_interrupted, @@ -222,7 +218,7 @@ static void osc_page_delete(const struct lu_env *env, osc_page_transfer_put(env, opg); rc = osc_teardown_async_page(env, obj, opg); if (rc) { - CL_PAGE_DEBUG(D_ERROR, env, cl_page_top(slice->cpl_page), + CL_PAGE_DEBUG(D_ERROR, env, slice->cpl_page, "Trying to teardown failed: %d\n", rc); LASSERT(0); } @@ -295,7 +291,6 @@ static int osc_page_flush(const struct lu_env *env, } static const struct cl_page_operations osc_page_ops = { - .cpo_fini = osc_page_fini, .cpo_print = osc_page_print, .cpo_delete = osc_page_delete, .cpo_is_under_lock = osc_page_is_under_lock, @@ -305,7 +300,7 @@ static const struct cl_page_operations osc_page_ops = { }; int osc_page_init(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, struct page *vmpage) + struct cl_page *page, pgoff_t index) { struct osc_object *osc = cl2osc(obj); struct osc_page *opg = cl_object_page_slice(obj, page); @@ -313,9 +308,10 @@ int osc_page_init(const struct lu_env *env, struct cl_object *obj, opg->ops_from = 0; opg->ops_to = PAGE_CACHE_SIZE; + opg->ops_cl.cpl_index = index; - result = osc_prep_async_page(osc, opg, vmpage, - cl_offset(obj, page->cp_index)); + result = osc_prep_async_page(osc, opg, page->cp_vmpage, + cl_offset(obj, index)); if (result == 0) { struct osc_io *oio = osc_env_io(env); @@ -337,8 +333,7 @@ int osc_page_init(const struct lu_env *env, struct cl_object *obj, result = osc_lru_reserve(env, osc, opg); if (result == 0) { spin_lock(&osc->oo_tree_lock); - result = radix_tree_insert(&osc->oo_tree, - page->cp_index, opg); + result = radix_tree_insert(&osc->oo_tree, index, opg); if (result == 0) ++osc->oo_npages; spin_unlock(&osc->oo_tree_lock); @@ -584,7 +579,7 @@ int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, if (--maxscan < 0) break; - page = cl_page_top(opg->ops_cl.cpl_page); + page = opg->ops_cl.cpl_page; if (cl_page_in_use_noref(page)) { list_move_tail(&opg->ops_lru, &cli->cl_lru_list); continue; -- cgit v0.10.2 From fd7444fecaa0c4516d68fdbedf570b8bded60bc1 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:33 -0400 Subject: staging/lustre/clio: optimize read ahead code It used to check each page in the readahead window is covered by a lock underneath, now cpo_page_is_under_lock() provides @max_index to help decide the maximum ra window. @max_index can be modified by OSC to extend the maximum lock region, to align stripe boundary at LOV, and to make sure the readahead region at least covers read region at LLITE layer. After this is done, usually readahead code calls cpo_page_is_under_lock() for each stripe. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/8523 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3321 Reviewed-by: Andreas Dilger Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index 5b65854..69b40f5 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -935,7 +935,7 @@ struct cl_page_operations { */ int (*cpo_is_under_lock)(const struct lu_env *env, const struct cl_page_slice *slice, - struct cl_io *io); + struct cl_io *io, pgoff_t *max); /** * Optional debugging helper. Prints given page slice. @@ -2674,7 +2674,7 @@ static inline void cl_device_fini(struct cl_device *d) } void cl_page_slice_add(struct cl_page *page, struct cl_page_slice *slice, - struct cl_object *obj, + struct cl_object *obj, pgoff_t index, const struct cl_page_operations *ops); void cl_lock_slice_add(struct cl_lock *lock, struct cl_lock_slice *slice, struct cl_object *obj, @@ -2826,7 +2826,7 @@ void cl_page_delete(const struct lu_env *env, struct cl_page *pg); int cl_page_is_vmlocked(const struct lu_env *env, const struct cl_page *pg); void cl_page_export(const struct lu_env *env, struct cl_page *pg, int uptodate); int cl_page_is_under_lock(const struct lu_env *env, struct cl_io *io, - struct cl_page *page); + struct cl_page *page, pgoff_t *max_index); loff_t cl_offset(const struct cl_object *obj, pgoff_t idx); pgoff_t cl_index(const struct cl_object *obj, loff_t offset); int cl_page_size(const struct cl_object *obj); diff --git a/drivers/staging/lustre/lustre/include/lclient.h b/drivers/staging/lustre/lustre/include/lclient.h index c91fb01..a8c8788 100644 --- a/drivers/staging/lustre/lustre/include/lclient.h +++ b/drivers/staging/lustre/lustre/include/lclient.h @@ -299,8 +299,6 @@ int ccc_lock_init(const struct lu_env *env, struct cl_object *obj, const struct cl_lock_operations *lkops); int ccc_object_glimpse(const struct lu_env *env, const struct cl_object *obj, struct ost_lvb *lvb); -int ccc_page_is_under_lock(const struct lu_env *env, - const struct cl_page_slice *slice, struct cl_io *io); int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice); int ccc_transient_page_prep(const struct lu_env *env, const struct cl_page_slice *slice, diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 55fa0da..e34d832 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -452,34 +452,6 @@ static void ccc_object_size_unlock(struct cl_object *obj) * */ -int ccc_page_is_under_lock(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *io) -{ - struct ccc_io *cio = ccc_env_io(env); - struct cl_lock_descr *desc = &ccc_env_info(env)->cti_descr; - struct cl_page *page = slice->cpl_page; - - int result; - - if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE || - io->ci_type == CIT_FAULT) { - if (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED) { - result = -EBUSY; - } else { - desc->cld_start = ccc_index(cl2ccc_page(slice)); - desc->cld_end = ccc_index(cl2ccc_page(slice)); - desc->cld_obj = page->cp_obj; - desc->cld_mode = CLM_READ; - result = cl_queue_match(&io->ci_lockset.cls_done, - desc) ? -EBUSY : 0; - } - } else { - result = 0; - } - return result; -} - int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice) { /* diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index bc83147..cd69173 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -328,6 +328,7 @@ enum ra_stat { RA_STAT_EOF, RA_STAT_MAX_IN_FLIGHT, RA_STAT_WRONG_GRAB_PAGE, + RA_STAT_FAILED_REACH_END, _NR_RA_STAT, }; @@ -702,8 +703,8 @@ int ll_writepages(struct address_space *, struct writeback_control *wbc); int ll_readpage(struct file *file, struct page *page); void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras); int ll_readahead(const struct lu_env *env, struct cl_io *io, - struct ll_readahead_state *ras, struct address_space *mapping, - struct cl_page_list *queue, int flags); + struct cl_page_list *queue, struct ll_readahead_state *ras, + bool hit); int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io); struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage); void ll_cl_fini(struct ll_cl_context *lcc); @@ -1074,7 +1075,7 @@ void ras_update(struct ll_sb_info *sbi, struct inode *inode, struct ll_readahead_state *ras, unsigned long index, unsigned hit); void ll_ra_count_put(struct ll_sb_info *sbi, unsigned long len); -void ll_ra_stats_inc(struct address_space *mapping, enum ra_stat which); +void ll_ra_stats_inc(struct inode *inode, enum ra_stat which); /* llite/llite_rmtacl.c */ #ifdef CONFIG_FS_POSIX_ACL diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c index 9e8e61a..091144f 100644 --- a/drivers/staging/lustre/lustre/llite/lproc_llite.c +++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c @@ -960,6 +960,7 @@ static const char *ra_stat_string[] = { [RA_STAT_EOF] = "read-ahead to EOF", [RA_STAT_MAX_IN_FLIGHT] = "hit max r-a issue", [RA_STAT_WRONG_GRAB_PAGE] = "wrong page from grab_cache_page", + [RA_STAT_FAILED_REACH_END] = "failed to reach end" }; int ldebugfs_register_mountpoint(struct dentry *parent, diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index b1375f1..ad15058 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -166,7 +166,7 @@ static void ll_ra_stats_inc_sbi(struct ll_sb_info *sbi, enum ra_stat which); */ static unsigned long ll_ra_count_get(struct ll_sb_info *sbi, struct ra_io_arg *ria, - unsigned long pages) + unsigned long pages, unsigned long min) { struct ll_ra_info *ra = &sbi->ll_ra_info; long ret; @@ -206,6 +206,11 @@ static unsigned long ll_ra_count_get(struct ll_sb_info *sbi, } out: + if (ret < min) { + /* override ra limit for maximum performance */ + atomic_add(min - ret, &ra->ra_cur_pages); + ret = min; + } return ret; } @@ -222,9 +227,9 @@ static void ll_ra_stats_inc_sbi(struct ll_sb_info *sbi, enum ra_stat which) lprocfs_counter_incr(sbi->ll_ra_stats, which); } -void ll_ra_stats_inc(struct address_space *mapping, enum ra_stat which) +void ll_ra_stats_inc(struct inode *inode, enum ra_stat which) { - struct ll_sb_info *sbi = ll_i2sbi(mapping->host); + struct ll_sb_info *sbi = ll_i2sbi(inode); ll_ra_stats_inc_sbi(sbi, which); } @@ -290,7 +295,7 @@ void ll_ra_read_ex(struct file *f, struct ll_ra_read *rar) static int cl_read_ahead_page(const struct lu_env *env, struct cl_io *io, struct cl_page_list *queue, struct cl_page *page, - struct cl_object *clob) + struct cl_object *clob, pgoff_t *max_index) { struct page *vmpage = page->cp_vmpage; struct ccc_page *cp; @@ -301,8 +306,11 @@ static int cl_read_ahead_page(const struct lu_env *env, struct cl_io *io, lu_ref_add(&page->cp_reference, "ra", current); cp = cl2ccc_page(cl_object_page_slice(clob, page)); if (!cp->cpg_defer_uptodate && !PageUptodate(vmpage)) { - rc = cl_page_is_under_lock(env, io, page); - if (rc == -EBUSY) { + CDEBUG(D_READA, "page index %lu, max_index: %lu\n", + ccc_index(cp), *max_index); + if (*max_index == 0 || ccc_index(cp) > *max_index) + rc = cl_page_is_under_lock(env, io, page, max_index); + if (rc == 0) { cp->cpg_defer_uptodate = 1; cp->cpg_ra_used = 0; cl_page_list_add(queue, page); @@ -332,24 +340,25 @@ static int cl_read_ahead_page(const struct lu_env *env, struct cl_io *io, */ static int ll_read_ahead_page(const struct lu_env *env, struct cl_io *io, struct cl_page_list *queue, - pgoff_t index, struct address_space *mapping) + pgoff_t index, pgoff_t *max_index) { + struct cl_object *clob = io->ci_obj; + struct inode *inode = ccc_object_inode(clob); struct page *vmpage; - struct cl_object *clob = ll_i2info(mapping->host)->lli_clob; struct cl_page *page; enum ra_stat which = _NR_RA_STAT; /* keep gcc happy */ int rc = 0; const char *msg = NULL; - vmpage = grab_cache_page_nowait(mapping, index); + vmpage = grab_cache_page_nowait(inode->i_mapping, index); if (vmpage) { /* Check if vmpage was truncated or reclaimed */ - if (vmpage->mapping == mapping) { + if (vmpage->mapping == inode->i_mapping) { page = cl_page_find(env, clob, vmpage->index, vmpage, CPT_CACHEABLE); if (!IS_ERR(page)) { rc = cl_read_ahead_page(env, io, queue, - page, clob); + page, clob, max_index); if (rc == -ENOLCK) { which = RA_STAT_FAILED_MATCH; msg = "lock match failed"; @@ -370,7 +379,7 @@ static int ll_read_ahead_page(const struct lu_env *env, struct cl_io *io, msg = "g_c_p_n failed"; } if (msg) { - ll_ra_stats_inc(mapping, which); + ll_ra_stats_inc(inode, which); CDEBUG(D_READA, "%s\n", msg); } return rc; @@ -482,11 +491,12 @@ static int ll_read_ahead_pages(const struct lu_env *env, struct cl_io *io, struct cl_page_list *queue, struct ra_io_arg *ria, unsigned long *reserved_pages, - struct address_space *mapping, unsigned long *ra_end) { - int rc, count = 0, stride_ria; - unsigned long page_idx; + int rc, count = 0; + bool stride_ria; + pgoff_t page_idx; + pgoff_t max_index = 0; LASSERT(ria); RIA_DEBUG(ria); @@ -497,7 +507,7 @@ static int ll_read_ahead_pages(const struct lu_env *env, if (ras_inside_ra_window(page_idx, ria)) { /* If the page is inside the read-ahead window*/ rc = ll_read_ahead_page(env, io, queue, - page_idx, mapping); + page_idx, &max_index); if (rc == 1) { (*reserved_pages)--; count++; @@ -532,25 +542,23 @@ static int ll_read_ahead_pages(const struct lu_env *env, } int ll_readahead(const struct lu_env *env, struct cl_io *io, - struct ll_readahead_state *ras, struct address_space *mapping, - struct cl_page_list *queue, int flags) + struct cl_page_list *queue, struct ll_readahead_state *ras, + bool hit) { struct vvp_io *vio = vvp_env_io(env); struct vvp_thread_info *vti = vvp_env_info(env); struct cl_attr *attr = ccc_env_thread_attr(env); unsigned long start = 0, end = 0, reserved; - unsigned long ra_end, len; + unsigned long ra_end, len, mlen = 0; struct inode *inode; struct ll_ra_read *bead; struct ra_io_arg *ria = &vti->vti_ria; - struct ll_inode_info *lli; struct cl_object *clob; int ret = 0; __u64 kms; - inode = mapping->host; - lli = ll_i2info(inode); - clob = lli->lli_clob; + clob = io->ci_obj; + inode = ccc_object_inode(clob); memset(ria, 0, sizeof(*ria)); @@ -562,7 +570,7 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, return ret; kms = attr->cat_kms; if (kms == 0) { - ll_ra_stats_inc(mapping, RA_STAT_ZERO_LEN); + ll_ra_stats_inc(inode, RA_STAT_ZERO_LEN); return 0; } @@ -621,29 +629,48 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, spin_unlock(&ras->ras_lock); if (end == 0) { - ll_ra_stats_inc(mapping, RA_STAT_ZERO_WINDOW); + ll_ra_stats_inc(inode, RA_STAT_ZERO_WINDOW); return 0; } len = ria_page_count(ria); - if (len == 0) + if (len == 0) { + ll_ra_stats_inc(inode, RA_STAT_ZERO_WINDOW); return 0; + } + + CDEBUG(D_READA, DFID ": ria: %lu/%lu, bead: %lu/%lu, hit: %d\n", + PFID(lu_object_fid(&clob->co_lu)), + ria->ria_start, ria->ria_end, + !bead ? 0 : bead->lrr_start, + !bead ? 0 : bead->lrr_count, + hit); + + /* at least to extend the readahead window to cover current read */ + if (!hit && bead && + bead->lrr_start + bead->lrr_count > ria->ria_start) { + /* to the end of current read window. */ + mlen = bead->lrr_start + bead->lrr_count - ria->ria_start; + /* trim to RPC boundary */ + start = ria->ria_start & (PTLRPC_MAX_BRW_PAGES - 1); + mlen = min(mlen, PTLRPC_MAX_BRW_PAGES - start); + } - reserved = ll_ra_count_get(ll_i2sbi(inode), ria, len); + reserved = ll_ra_count_get(ll_i2sbi(inode), ria, len, mlen); if (reserved < len) - ll_ra_stats_inc(mapping, RA_STAT_MAX_IN_FLIGHT); + ll_ra_stats_inc(inode, RA_STAT_MAX_IN_FLIGHT); - CDEBUG(D_READA, "reserved page %lu ra_cur %d ra_max %lu\n", reserved, + CDEBUG(D_READA, "reserved pages %lu/%lu/%lu, ra_cur %d, ra_max %lu\n", + reserved, len, mlen, atomic_read(&ll_i2sbi(inode)->ll_ra_info.ra_cur_pages), ll_i2sbi(inode)->ll_ra_info.ra_max_pages); - ret = ll_read_ahead_pages(env, io, queue, - ria, &reserved, mapping, &ra_end); + ret = ll_read_ahead_pages(env, io, queue, ria, &reserved, &ra_end); if (reserved != 0) ll_ra_count_put(ll_i2sbi(inode), reserved); if (ra_end == end + 1 && ra_end == (kms >> PAGE_CACHE_SHIFT)) - ll_ra_stats_inc(mapping, RA_STAT_EOF); + ll_ra_stats_inc(inode, RA_STAT_EOF); /* if we didn't get to the end of the region we reserved from * the ras we need to go back and update the ras so that the @@ -655,6 +682,7 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, ra_end, end, ria->ria_end); if (ra_end != end + 1) { + ll_ra_stats_inc(inode, RA_STAT_FAILED_REACH_END); spin_lock(&ras->ras_lock); if (ra_end < ras->ras_next_readahead && index_in_window(ra_end, ras->ras_window_start, 0, @@ -925,15 +953,18 @@ void ras_update(struct ll_sb_info *sbi, struct inode *inode, ras->ras_last_readpage = index; ras_set_start(inode, ras, index); - if (stride_io_mode(ras)) + if (stride_io_mode(ras)) { /* Since stride readahead is sensitive to the offset * of read-ahead, so we use original offset here, * instead of ras_window_start, which is RPC aligned */ ras->ras_next_readahead = max(index, ras->ras_next_readahead); - else - ras->ras_next_readahead = max(ras->ras_window_start, - ras->ras_next_readahead); + } else { + if (ras->ras_next_readahead < ras->ras_window_start) + ras->ras_next_readahead = ras->ras_window_start; + if (!hit) + ras->ras_next_readahead = index + 1; + } RAS_CDEBUG(ras); /* Trigger RA in the mmap case where ras_consecutive_requests diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index ac9d615..18127d3 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -1052,35 +1052,19 @@ static int vvp_io_read_page(const struct lu_env *env, const struct cl_page_slice *slice) { struct cl_io *io = ios->cis_io; - struct cl_object *obj = slice->cpl_obj; struct ccc_page *cp = cl2ccc_page(slice); struct cl_page *page = slice->cpl_page; - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = ccc_object_inode(slice->cpl_obj); struct ll_sb_info *sbi = ll_i2sbi(inode); struct ll_file_data *fd = cl2ccc_io(env, ios)->cui_fd; struct ll_readahead_state *ras = &fd->fd_ras; - struct page *vmpage = cp->cpg_page; struct cl_2queue *queue = &io->ci_queue; - int rc; - - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); - LASSERT(slice->cpl_obj == obj); if (sbi->ll_ra_info.ra_max_pages_per_file && sbi->ll_ra_info.ra_max_pages) ras_update(sbi, inode, ras, ccc_index(cp), cp->cpg_defer_uptodate); - /* Sanity check whether the page is protected by a lock. */ - rc = cl_page_is_under_lock(env, io, page); - if (rc != -EBUSY) { - CL_PAGE_HEADER(D_WARNING, env, page, "%s: %d\n", - rc == -ENODATA ? "without a lock" : - "match failed", rc); - if (rc != -ENODATA) - return rc; - } - if (cp->cpg_defer_uptodate) { cp->cpg_ra_used = 1; cl_page_export(env, page, 1); @@ -1089,11 +1073,12 @@ static int vvp_io_read_page(const struct lu_env *env, * Add page into the queue even when it is marked uptodate above. * this will unlock it automatically as part of cl_page_list_disown(). */ + cl_page_list_add(&queue->c2_qin, page); if (sbi->ll_ra_info.ra_max_pages_per_file && sbi->ll_ra_info.ra_max_pages) - ll_readahead(env, io, ras, - vmpage->mapping, &queue->c2_qin, fd->fd_flags); + ll_readahead(env, io, &queue->c2_qin, ras, + cp->cpg_defer_uptodate); return 0; } diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c index d9f13c3..3c6b723 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_page.c +++ b/drivers/staging/lustre/lustre/llite/vvp_page.c @@ -142,7 +142,7 @@ static void vvp_page_discard(const struct lu_env *env, LASSERT(PageLocked(vmpage)); if (cpg->cpg_defer_uptodate && !cpg->cpg_ra_used) - ll_ra_stats_inc(vmpage->mapping, RA_STAT_DISCARDED); + ll_ra_stats_inc(vmpage->mapping->host, RA_STAT_DISCARDED); ll_invalidate_page(vmpage); } @@ -357,6 +357,20 @@ static int vvp_page_make_ready(const struct lu_env *env, return result; } +static int vvp_page_is_under_lock(const struct lu_env *env, + const struct cl_page_slice *slice, + struct cl_io *io, pgoff_t *max_index) +{ + if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE || + io->ci_type == CIT_FAULT) { + struct ccc_io *cio = ccc_env_io(env); + + if (unlikely(cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) + *max_index = CL_PAGE_EOF; + } + return 0; +} + static int vvp_page_print(const struct lu_env *env, const struct cl_page_slice *slice, void *cookie, lu_printer_t printer) @@ -389,7 +403,7 @@ static const struct cl_page_operations vvp_page_ops = { .cpo_is_vmlocked = vvp_page_is_vmlocked, .cpo_fini = vvp_page_fini, .cpo_print = vvp_page_print, - .cpo_is_under_lock = ccc_page_is_under_lock, + .cpo_is_under_lock = vvp_page_is_under_lock, .io = { [CRT_READ] = { .cpo_prep = vvp_page_prep_read, @@ -495,7 +509,7 @@ static const struct cl_page_operations vvp_transient_page_ops = { .cpo_fini = vvp_transient_page_fini, .cpo_is_vmlocked = vvp_transient_page_is_vmlocked, .cpo_print = vvp_page_print, - .cpo_is_under_lock = ccc_page_is_under_lock, + .cpo_is_under_lock = vvp_page_is_under_lock, .io = { [CRT_READ] = { .cpo_prep = ccc_transient_page_prep, @@ -516,7 +530,6 @@ int vvp_page_init(const struct lu_env *env, struct cl_object *obj, CLOBINVRNT(env, obj, ccc_object_invariant(obj)); - cpg->cpg_cl.cpl_index = index; cpg->cpg_page = vmpage; page_cache_get(vmpage); @@ -526,12 +539,13 @@ int vvp_page_init(const struct lu_env *env, struct cl_object *obj, atomic_inc(&page->cp_ref); SetPagePrivate(vmpage); vmpage->private = (unsigned long)page; - cl_page_slice_add(page, &cpg->cpg_cl, obj, &vvp_page_ops); + cl_page_slice_add(page, &cpg->cpg_cl, obj, index, + &vvp_page_ops); } else { struct ccc_object *clobj = cl2ccc(obj); LASSERT(!inode_trylock(clobj->cob_inode)); - cl_page_slice_add(page, &cpg->cpg_cl, obj, + cl_page_slice_add(page, &cpg->cpg_cl, obj, index, &vvp_transient_page_ops); clobj->cob_transient_pages++; } diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h index b8e2315..9b3d13b 100644 --- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h @@ -632,6 +632,7 @@ struct lov_lock_link *lov_lock_link_find(const struct lu_env *env, struct lovsub_lock *sub); struct lov_io_sub *lov_page_subio(const struct lu_env *env, struct lov_io *lio, const struct cl_page_slice *slice); +int lov_page_stripe(const struct cl_page *page); #define lov_foreach_target(lov, var) \ for (var = 0; var < lov_targets_nr(lov); ++var) diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h index 590f932..9985855 100644 --- a/drivers/staging/lustre/lustre/lov/lov_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_internal.h @@ -146,6 +146,8 @@ int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno, u64 start, u64 end, u64 *obd_start, u64 *obd_end); int lov_stripe_number(struct lov_stripe_md *lsm, u64 lov_off); +pgoff_t lov_stripe_pgoff(struct lov_stripe_md *lsm, pgoff_t stripe_index, + int stripe); /* lov_qos.c */ #define LOV_USES_ASSIGNED_STRIPE 0 diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c index e5b2cfc..ba79955 100644 --- a/drivers/staging/lustre/lustre/lov/lov_io.c +++ b/drivers/staging/lustre/lustre/lov/lov_io.c @@ -245,7 +245,7 @@ void lov_sub_put(struct lov_io_sub *sub) * */ -static int lov_page_stripe(const struct cl_page *page) +int lov_page_stripe(const struct cl_page *page) { struct lovsub_object *subobj; const struct cl_page_slice *slice; diff --git a/drivers/staging/lustre/lustre/lov/lov_offset.c b/drivers/staging/lustre/lustre/lov/lov_offset.c index ae83eb0..cb7b516 100644 --- a/drivers/staging/lustre/lustre/lov/lov_offset.c +++ b/drivers/staging/lustre/lustre/lov/lov_offset.c @@ -66,6 +66,19 @@ u64 lov_stripe_size(struct lov_stripe_md *lsm, u64 ost_size, int stripeno) return lov_size; } +/** + * Compute file level page index by stripe level page offset + */ +pgoff_t lov_stripe_pgoff(struct lov_stripe_md *lsm, pgoff_t stripe_index, + int stripe) +{ + loff_t offset; + + offset = lov_stripe_size(lsm, stripe_index << PAGE_CACHE_SHIFT, + stripe); + return offset >> PAGE_CACHE_SHIFT; +} + /* we have an offset in file backed by an lov and want to find out where * that offset lands in our given stripe of the file. for the easy * case where the offset is within the stripe, we just have to scale the diff --git a/drivers/staging/lustre/lustre/lov/lov_page.c b/drivers/staging/lustre/lustre/lov/lov_page.c index 0c508bd..9634c13 100644 --- a/drivers/staging/lustre/lustre/lov/lov_page.c +++ b/drivers/staging/lustre/lustre/lov/lov_page.c @@ -52,17 +52,57 @@ * Lov page operations. * */ -static int lov_page_print(const struct lu_env *env, - const struct cl_page_slice *slice, - void *cookie, lu_printer_t printer) + +/** + * Adjust the stripe index by layout of raid0. @max_index is the maximum + * page index covered by an underlying DLM lock. + * This function converts max_index from stripe level to file level, and make + * sure it's not beyond one stripe. + */ +static int lov_raid0_page_is_under_lock(const struct lu_env *env, + const struct cl_page_slice *slice, + struct cl_io *unused, + pgoff_t *max_index) +{ + struct lov_object *loo = cl2lov(slice->cpl_obj); + struct lov_layout_raid0 *r0 = lov_r0(loo); + pgoff_t index = *max_index; + unsigned int pps; /* pages per stripe */ + + CDEBUG(D_READA, "*max_index = %lu, nr = %d\n", index, r0->lo_nr); + if (index == 0) /* the page is not covered by any lock */ + return 0; + + if (r0->lo_nr == 1) /* single stripe file */ + return 0; + + /* max_index is stripe level, convert it into file level */ + if (index != CL_PAGE_EOF) { + int stripeno = lov_page_stripe(slice->cpl_page); + *max_index = lov_stripe_pgoff(loo->lo_lsm, index, stripeno); + } + + /* calculate the end of current stripe */ + pps = loo->lo_lsm->lsm_stripe_size >> PAGE_CACHE_SHIFT; + index = ((slice->cpl_index + pps) & ~(pps - 1)) - 1; + + /* never exceed the end of the stripe */ + *max_index = min_t(pgoff_t, *max_index, index); + return 0; +} + +static int lov_raid0_page_print(const struct lu_env *env, + const struct cl_page_slice *slice, + void *cookie, lu_printer_t printer) { struct lov_page *lp = cl2lov_page(slice); - return (*printer)(env, cookie, LUSTRE_LOV_NAME"-page@%p\n", lp); + return (*printer)(env, cookie, LUSTRE_LOV_NAME "-page@%p, raid0\n", lp); } -static const struct cl_page_operations lov_page_ops = { - .cpo_print = lov_page_print +static const struct cl_page_operations lov_raid0_page_ops = { + .cpo_is_under_lock = lov_raid0_page_is_under_lock, + .cpo_print = lov_raid0_page_print }; int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj, @@ -86,7 +126,7 @@ int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj, rc = lov_stripe_offset(loo->lo_lsm, offset, stripe, &suboff); LASSERT(rc == 0); - cl_page_slice_add(page, &lpg->lps_cl, obj, &lov_page_ops); + cl_page_slice_add(page, &lpg->lps_cl, obj, index, &lov_raid0_page_ops); sub = lov_sub_get(env, lio, stripe); if (IS_ERR(sub)) @@ -107,7 +147,7 @@ int lov_page_init_raid0(const struct lu_env *env, struct cl_object *obj, return rc; } -static int lov_page_empty_print(const struct lu_env *env, +static int lov_empty_page_print(const struct lu_env *env, const struct cl_page_slice *slice, void *cookie, lu_printer_t printer) { @@ -118,7 +158,7 @@ static int lov_page_empty_print(const struct lu_env *env, } static const struct cl_page_operations lov_empty_page_ops = { - .cpo_print = lov_page_empty_print + .cpo_print = lov_empty_page_print }; int lov_page_init_empty(const struct lu_env *env, struct cl_object *obj, @@ -127,7 +167,7 @@ int lov_page_init_empty(const struct lu_env *env, struct cl_object *obj, struct lov_page *lpg = cl_object_page_slice(obj, page); void *addr; - cl_page_slice_add(page, &lpg->lps_cl, obj, &lov_empty_page_ops); + cl_page_slice_add(page, &lpg->lps_cl, obj, index, &lov_empty_page_ops); addr = kmap(page->cp_vmpage); memset(addr, 0, cl_page_size(obj)); kunmap(page->cp_vmpage); diff --git a/drivers/staging/lustre/lustre/lov/lovsub_page.c b/drivers/staging/lustre/lustre/lov/lovsub_page.c index fb4c0cc..9badedc 100644 --- a/drivers/staging/lustre/lustre/lov/lovsub_page.c +++ b/drivers/staging/lustre/lustre/lov/lovsub_page.c @@ -60,11 +60,11 @@ static const struct cl_page_operations lovsub_page_ops = { }; int lovsub_page_init(const struct lu_env *env, struct cl_object *obj, - struct cl_page *page, pgoff_t ind) + struct cl_page *page, pgoff_t index) { struct lovsub_page *lsb = cl_object_page_slice(obj, page); - cl_page_slice_add(page, &lsb->lsb_cl, obj, &lovsub_page_ops); + cl_page_slice_add(page, &lsb->lsb_cl, obj, index, &lovsub_page_ops); return 0; } diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c index 86591ce..65d6cee 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_io.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c @@ -733,7 +733,7 @@ int cl_io_read_page(const struct lu_env *env, struct cl_io *io, break; } } - if (result == 0) + if (result == 0 && queue->c2_qin.pl_nr > 0) result = cl_io_submit_rw(env, io, CRT_READ, queue); /* * Unlock unsent pages in case of error. diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c index cb15673..506a9f9 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c @@ -401,6 +401,30 @@ EXPORT_SYMBOL(cl_page_at); __result; \ }) +#define CL_PAGE_INVOKE_REVERSE(_env, _page, _op, _proto, ...) \ +({ \ + const struct lu_env *__env = (_env); \ + struct cl_page *__page = (_page); \ + const struct cl_page_slice *__scan; \ + int __result; \ + ptrdiff_t __op = (_op); \ + int (*__method)_proto; \ + \ + __result = 0; \ + list_for_each_entry_reverse(__scan, &__page->cp_layers, \ + cpl_linkage) { \ + __method = *(void **)((char *)__scan->cpl_ops + __op); \ + if (__method) { \ + __result = (*__method)(__env, __scan, ## __VA_ARGS__); \ + if (__result != 0) \ + break; \ + } \ + } \ + if (__result > 0) \ + __result = 0; \ + __result; \ +}) + #define CL_PAGE_INVOID(_env, _page, _op, _proto, ...) \ do { \ const struct lu_env *__env = (_env); \ @@ -928,17 +952,17 @@ EXPORT_SYMBOL(cl_page_flush); * \see cl_page_operations::cpo_is_under_lock() */ int cl_page_is_under_lock(const struct lu_env *env, struct cl_io *io, - struct cl_page *page) + struct cl_page *page, pgoff_t *max_index) { int rc; PINVRNT(env, page, cl_page_invariant(page)); - rc = CL_PAGE_INVOKE(env, page, CL_PAGE_OP(cpo_is_under_lock), - (const struct lu_env *, - const struct cl_page_slice *, struct cl_io *), - io); - PASSERT(env, page, rc != 0); + rc = CL_PAGE_INVOKE_REVERSE(env, page, CL_PAGE_OP(cpo_is_under_lock), + (const struct lu_env *, + const struct cl_page_slice *, + struct cl_io *, pgoff_t *), + io, max_index); return rc; } EXPORT_SYMBOL(cl_page_is_under_lock); @@ -1041,11 +1065,12 @@ EXPORT_SYMBOL(cl_page_size); * \see cl_lock_slice_add(), cl_req_slice_add(), cl_io_slice_add() */ void cl_page_slice_add(struct cl_page *page, struct cl_page_slice *slice, - struct cl_object *obj, + struct cl_object *obj, pgoff_t index, const struct cl_page_operations *ops) { list_add_tail(&slice->cpl_linkage, &page->cp_layers); slice->cpl_obj = obj; + slice->cpl_index = index; slice->cpl_ops = ops; slice->cpl_page = page; } diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c index db56081..0d84d04 100644 --- a/drivers/staging/lustre/lustre/obdecho/echo_client.c +++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c @@ -365,7 +365,7 @@ static int echo_page_init(const struct lu_env *env, struct cl_object *obj, page_cache_get(page->cp_vmpage); mutex_init(&ep->ep_lock); - cl_page_slice_add(page, &ep->ep_cl, obj, &echo_page_ops); + cl_page_slice_add(page, &ep->ep_cl, obj, index, &echo_page_ops); atomic_inc(&eco->eo_npages); return 0; } diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index 3e0a8c3..e02dd33 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -132,17 +132,19 @@ void osc_index2policy(ldlm_policy_data_t *policy, const struct cl_object *obj, static int osc_page_is_under_lock(const struct lu_env *env, const struct cl_page_slice *slice, - struct cl_io *unused) + struct cl_io *unused, pgoff_t *max_index) { struct osc_page *opg = cl2osc_page(slice); struct cl_lock *lock; int result = -ENODATA; + *max_index = 0; lock = cl_lock_at_pgoff(env, slice->cpl_obj, osc_index(opg), NULL, 1, 0); if (lock) { + *max_index = lock->cll_descr.cld_end; cl_lock_put(env, lock); - result = -EBUSY; + result = 0; } return result; } @@ -308,7 +310,6 @@ int osc_page_init(const struct lu_env *env, struct cl_object *obj, opg->ops_from = 0; opg->ops_to = PAGE_CACHE_SIZE; - opg->ops_cl.cpl_index = index; result = osc_prep_async_page(osc, opg, page->cp_vmpage, cl_offset(obj, index)); @@ -316,7 +317,8 @@ int osc_page_init(const struct lu_env *env, struct cl_object *obj, struct osc_io *oio = osc_env_io(env); opg->ops_srvlock = osc_io_srvlock(oio); - cl_page_slice_add(page, &opg->ops_cl, obj, &osc_page_ops); + cl_page_slice_add(page, &opg->ops_cl, obj, index, + &osc_page_ops); } /* * Cannot assert osc_page_protected() here as read-ahead -- cgit v0.10.2 From d2995737bb6da9fcb9f84bf820322e351df2813b Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:34 -0400 Subject: staging/lustre/llite: remove lli_lvb In struct ll_inode_info remove the struct ost_lvb lli_lvb member and replace it with obd_time lli_{a,m,c}time. Rename ll_merge_lvb() to ll_merge_attr(). Remove cl_merge_lvb() and replace calls to it with calls to ll_merge_attr(). Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/12849 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675 Reviewed-by: Bobi Jam Reviewed-by: Lai Siyao Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 127fff6..8fc9da0 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -994,50 +994,57 @@ int ll_inode_getattr(struct inode *inode, struct obdo *obdo, return rc; } -int ll_merge_lvb(const struct lu_env *env, struct inode *inode) +int ll_merge_attr(const struct lu_env *env, struct inode *inode) { struct ll_inode_info *lli = ll_i2info(inode); struct cl_object *obj = lli->lli_clob; struct cl_attr *attr = ccc_env_thread_attr(env); - struct ost_lvb lvb; + s64 atime; + s64 mtime; + s64 ctime; int rc = 0; ll_inode_size_lock(inode); + /* merge timestamps the most recently obtained from mds with * timestamps obtained from osts */ - LTIME_S(inode->i_atime) = lli->lli_lvb.lvb_atime; - LTIME_S(inode->i_mtime) = lli->lli_lvb.lvb_mtime; - LTIME_S(inode->i_ctime) = lli->lli_lvb.lvb_ctime; + LTIME_S(inode->i_atime) = lli->lli_atime; + LTIME_S(inode->i_mtime) = lli->lli_mtime; + LTIME_S(inode->i_ctime) = lli->lli_ctime; - lvb.lvb_size = i_size_read(inode); - lvb.lvb_blocks = inode->i_blocks; - lvb.lvb_mtime = LTIME_S(inode->i_mtime); - lvb.lvb_atime = LTIME_S(inode->i_atime); - lvb.lvb_ctime = LTIME_S(inode->i_ctime); + mtime = LTIME_S(inode->i_mtime); + atime = LTIME_S(inode->i_atime); + ctime = LTIME_S(inode->i_ctime); cl_object_attr_lock(obj); rc = cl_object_attr_get(env, obj, attr); cl_object_attr_unlock(obj); - if (rc == 0) { - if (lvb.lvb_atime < attr->cat_atime) - lvb.lvb_atime = attr->cat_atime; - if (lvb.lvb_ctime < attr->cat_ctime) - lvb.lvb_ctime = attr->cat_ctime; - if (lvb.lvb_mtime < attr->cat_mtime) - lvb.lvb_mtime = attr->cat_mtime; + if (rc != 0) + goto out_size_unlock; - CDEBUG(D_VFSTRACE, DFID " updating i_size %llu\n", - PFID(&lli->lli_fid), attr->cat_size); - cl_isize_write_nolock(inode, attr->cat_size); + if (atime < attr->cat_atime) + atime = attr->cat_atime; - inode->i_blocks = attr->cat_blocks; + if (ctime < attr->cat_ctime) + ctime = attr->cat_ctime; - LTIME_S(inode->i_mtime) = lvb.lvb_mtime; - LTIME_S(inode->i_atime) = lvb.lvb_atime; - LTIME_S(inode->i_ctime) = lvb.lvb_ctime; - } + if (mtime < attr->cat_mtime) + mtime = attr->cat_mtime; + + CDEBUG(D_VFSTRACE, DFID " updating i_size %llu\n", + PFID(&lli->lli_fid), attr->cat_size); + + cl_isize_write_nolock(inode, attr->cat_size); + + inode->i_blocks = attr->cat_blocks; + + LTIME_S(inode->i_mtime) = mtime; + LTIME_S(inode->i_atime) = atime; + LTIME_S(inode->i_ctime) = ctime; + +out_size_unlock: ll_inode_size_unlock(inode); return rc; @@ -1936,7 +1943,7 @@ int ll_hsm_release(struct inode *inode) goto out; } - ll_merge_lvb(env, inode); + ll_merge_attr(env, inode); cl_env_nested_put(&nest, env); /* Release the file. @@ -3001,9 +3008,9 @@ static int ll_inode_revalidate(struct dentry *dentry, __u64 ibits) /* if object isn't regular file, don't validate size */ if (!S_ISREG(inode->i_mode)) { - LTIME_S(inode->i_atime) = ll_i2info(inode)->lli_lvb.lvb_atime; - LTIME_S(inode->i_mtime) = ll_i2info(inode)->lli_lvb.lvb_mtime; - LTIME_S(inode->i_ctime) = ll_i2info(inode)->lli_lvb.lvb_ctime; + LTIME_S(inode->i_atime) = ll_i2info(inode)->lli_atime; + LTIME_S(inode->i_mtime) = ll_i2info(inode)->lli_mtime; + LTIME_S(inode->i_ctime) = ll_i2info(inode)->lli_ctime; } else { /* In case of restore, the MDT has the right size and has * already send it back without granting the layout lock, diff --git a/drivers/staging/lustre/lustre/llite/glimpse.c b/drivers/staging/lustre/lustre/llite/glimpse.c index f235f35..88bc7c9 100644 --- a/drivers/staging/lustre/lustre/llite/glimpse.c +++ b/drivers/staging/lustre/lustre/llite/glimpse.c @@ -139,7 +139,7 @@ int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, LASSERT(agl == 0); result = cl_wait(env, lock); if (result == 0) { - cl_merge_lvb(env, inode); + ll_merge_attr(env, inode); if (cl_isize_read(inode) > 0 && inode->i_blocks == 0) { /* @@ -155,7 +155,7 @@ int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, cl_lock_release(env, lock, "glimpse", current); } else { CDEBUG(D_DLMTRACE, "No objects for inode\n"); - cl_merge_lvb(env, inode); + ll_merge_attr(env, inode); } } @@ -259,7 +259,7 @@ int cl_local_size(struct inode *inode) descr->cld_obj = clob; lock = cl_lock_peek(env, io, descr, "localsize", current); if (lock) { - cl_merge_lvb(env, inode); + ll_merge_attr(env, inode); cl_unuse(env, lock); cl_lock_release(env, lock, "localsize", current); result = 0; diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index e34d832..4871d0f 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -591,7 +591,7 @@ void ccc_lock_state(const struct lu_env *env, */ if (lock->cll_descr.cld_start == 0 && lock->cll_descr.cld_end == CL_PAGE_EOF) - cl_merge_lvb(env, inode); + ll_merge_attr(env, inode); } } diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index cd69173..c1d747a 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -161,7 +161,9 @@ struct ll_inode_info { struct inode lli_vfs_inode; /* the most recent timestamps obtained from mds */ - struct ost_lvb lli_lvb; + s64 lli_atime; + s64 lli_mtime; + s64 lli_ctime; spinlock_t lli_agl_lock; /* Try to make the d::member and f::member are aligned. Before using @@ -752,7 +754,7 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump, int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp, int *lmm_size, struct ptlrpc_request **request); int ll_fsync(struct file *file, loff_t start, loff_t end, int data); -int ll_merge_lvb(const struct lu_env *env, struct inode *inode); +int ll_merge_attr(const struct lu_env *env, struct inode *inode); int ll_fid2path(struct inode *inode, void __user *arg); int ll_data_version(struct inode *inode, __u64 *data_version, int extent_lock); int ll_hsm_release(struct inode *inode); @@ -1319,11 +1321,6 @@ static inline void cl_isize_write(struct inode *inode, loff_t kms) #define cl_isize_read(inode) i_size_read(inode) -static inline int cl_merge_lvb(const struct lu_env *env, struct inode *inode) -{ - return ll_merge_lvb(env, inode); -} - #define cl_inode_atime(inode) LTIME_S((inode)->i_atime) #define cl_inode_ctime(inode) LTIME_S((inode)->i_ctime) #define cl_inode_mtime(inode) LTIME_S((inode)->i_mtime) diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index a4401f2..0b4e0db 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -1551,7 +1551,7 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md) if (body->valid & OBD_MD_FLATIME) { if (body->atime > LTIME_S(inode->i_atime)) LTIME_S(inode->i_atime) = body->atime; - lli->lli_lvb.lvb_atime = body->atime; + lli->lli_atime = body->atime; } if (body->valid & OBD_MD_FLMTIME) { if (body->mtime > LTIME_S(inode->i_mtime)) { @@ -1560,12 +1560,12 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md) body->mtime); LTIME_S(inode->i_mtime) = body->mtime; } - lli->lli_lvb.lvb_mtime = body->mtime; + lli->lli_mtime = body->mtime; } if (body->valid & OBD_MD_FLCTIME) { if (body->ctime > LTIME_S(inode->i_ctime)) LTIME_S(inode->i_ctime) = body->ctime; - lli->lli_lvb.lvb_ctime = body->ctime; + lli->lli_ctime = body->ctime; } if (body->valid & OBD_MD_FLMODE) inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT); diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 18127d3..c7db318 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -739,7 +739,7 @@ int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) } /* update inode size */ - ll_merge_lvb(env, inode); + ll_merge_attr(env, inode); /* Now the pages in queue were failed to commit, discard them * unless they were dirtied before. -- cgit v0.10.2 From 019e93516dcfc98efda51ccb8f7e0e758fda8ded Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:35 -0400 Subject: staging/lustre/lmv: remove lmv_init_{lock,unlock}() In struct lmv_obd rename the init_mutex member to lmv_init_mutex. Remove the compat macros lmv_init_{lock,unlock}() and use mutex_{lock,unlock}(&lmv->lmv_init_mutex) instead. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/12115 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675 Reviewed-by: Bob Glossman Reviewed-by: James Simmons Reviewed-by: Dmitry Eremin Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index 26182ca..15c514c 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -512,7 +512,7 @@ struct lmv_obd { struct obd_uuid cluuid; struct obd_export *exp; - struct mutex init_mutex; + struct mutex lmv_init_mutex; int connected; int max_easize; int max_def_easize; diff --git a/drivers/staging/lustre/lustre/lmv/lmv_internal.h b/drivers/staging/lustre/lustre/lmv/lmv_internal.h index 8a00871..7007e4c 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_internal.h +++ b/drivers/staging/lustre/lustre/lmv/lmv_internal.h @@ -42,9 +42,6 @@ #define LMV_MAX_TGT_COUNT 128 -#define lmv_init_lock(lmv) mutex_lock(&lmv->init_mutex) -#define lmv_init_unlock(lmv) mutex_unlock(&lmv->init_mutex) - #define LL_IT2STR(it) \ ((it) ? ldlm_it2str((it)->it_op) : "0") diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c index e3a7216..8bd2dc5 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c +++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c @@ -425,7 +425,7 @@ static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp, CDEBUG(D_CONFIG, "Target uuid: %s. index %d\n", uuidp->uuid, index); - lmv_init_lock(lmv); + mutex_lock(&lmv->lmv_init_mutex); if (lmv->desc.ld_tgt_count == 0) { struct obd_device *mdc_obd; @@ -433,7 +433,7 @@ static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp, mdc_obd = class_find_client_obd(uuidp, LUSTRE_MDC_NAME, &obd->obd_uuid); if (!mdc_obd) { - lmv_init_unlock(lmv); + mutex_unlock(&lmv->lmv_init_mutex); CERROR("%s: Target %s not attached: rc = %d\n", obd->obd_name, uuidp->uuid, -EINVAL); return -EINVAL; @@ -445,7 +445,7 @@ static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp, CERROR("%s: UUID %s already assigned at LOV target index %d: rc = %d\n", obd->obd_name, obd_uuid2str(&tgt->ltd_uuid), index, -EEXIST); - lmv_init_unlock(lmv); + mutex_unlock(&lmv->lmv_init_mutex); return -EEXIST; } @@ -459,7 +459,7 @@ static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp, newsize <<= 1; newtgts = kcalloc(newsize, sizeof(*newtgts), GFP_NOFS); if (!newtgts) { - lmv_init_unlock(lmv); + mutex_unlock(&lmv->lmv_init_mutex); return -ENOMEM; } @@ -481,7 +481,7 @@ static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp, tgt = kzalloc(sizeof(*tgt), GFP_NOFS); if (!tgt) { - lmv_init_unlock(lmv); + mutex_unlock(&lmv->lmv_init_mutex); return -ENOMEM; } @@ -507,7 +507,7 @@ static int lmv_add_target(struct obd_device *obd, struct obd_uuid *uuidp, } } - lmv_init_unlock(lmv); + mutex_unlock(&lmv->lmv_init_mutex); return rc; } @@ -522,14 +522,14 @@ int lmv_check_connect(struct obd_device *obd) if (lmv->connected) return 0; - lmv_init_lock(lmv); + mutex_lock(&lmv->lmv_init_mutex); if (lmv->connected) { - lmv_init_unlock(lmv); + mutex_unlock(&lmv->lmv_init_mutex); return 0; } if (lmv->desc.ld_tgt_count == 0) { - lmv_init_unlock(lmv); + mutex_unlock(&lmv->lmv_init_mutex); CERROR("%s: no targets configured.\n", obd->obd_name); return -EINVAL; } @@ -551,7 +551,7 @@ int lmv_check_connect(struct obd_device *obd) lmv->connected = 1; easize = lmv_get_easize(lmv); lmv_init_ea_size(obd->obd_self_export, easize, 0, 0, 0); - lmv_init_unlock(lmv); + mutex_unlock(&lmv->lmv_init_mutex); return 0; out_disc: @@ -572,7 +572,7 @@ int lmv_check_connect(struct obd_device *obd) } } class_disconnect(lmv->exp); - lmv_init_unlock(lmv); + mutex_unlock(&lmv->lmv_init_mutex); return rc; } @@ -1269,7 +1269,7 @@ static int lmv_setup(struct obd_device *obd, struct lustre_cfg *lcfg) lmv->lmv_placement = PLACEMENT_CHAR_POLICY; spin_lock_init(&lmv->lmv_lock); - mutex_init(&lmv->init_mutex); + mutex_init(&lmv->lmv_init_mutex); lprocfs_lmv_init_vars(&lvars); -- cgit v0.10.2 From 7d53d8f426cacdb7352e91957721b4a9962b222a Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:36 -0400 Subject: staging/lustre/obd: remove struct client_obd_lock Remove the definition of struct client_obd_lock and the functions client_obd_list_{init,lock,unlock,done}(). Use spinlock_t for the cl_{loi,lru}_list_lock members of struct client_obd and call spin_{lock,unlock}() directly. Signed-off-by: John L. Hammond Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c index a3d122d..2dfdb51 100644 --- a/drivers/staging/lustre/lustre/fld/fld_request.c +++ b/drivers/staging/lustre/lustre/fld/fld_request.c @@ -64,9 +64,9 @@ static int fld_req_avail(struct client_obd *cli, struct mdc_cache_waiter *mcw) { int rc; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); rc = list_empty(&mcw->mcw_entry); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return rc; }; @@ -75,15 +75,15 @@ static void fld_enter_request(struct client_obd *cli) struct mdc_cache_waiter mcw; struct l_wait_info lwi = { 0 }; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) { list_add_tail(&mcw.mcw_entry, &cli->cl_cache_waiters); init_waitqueue_head(&mcw.mcw_waitq); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); l_wait_event(mcw.mcw_waitq, fld_req_avail(cli, &mcw), &lwi); } else { cli->cl_r_in_flight++; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); } } @@ -92,7 +92,7 @@ static void fld_exit_request(struct client_obd *cli) struct list_head *l, *tmp; struct mdc_cache_waiter *mcw; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); cli->cl_r_in_flight--; list_for_each_safe(l, tmp, &cli->cl_cache_waiters) { @@ -106,7 +106,7 @@ static void fld_exit_request(struct client_obd *cli) cli->cl_r_in_flight++; wake_up(&mcw->mcw_waitq); } - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); } static int fld_rrb_hash(struct lu_client_fld *fld, u64 seq) diff --git a/drivers/staging/lustre/lustre/include/linux/obd.h b/drivers/staging/lustre/lustre/include/linux/obd.h index 3907bf4..e1063e8 100644 --- a/drivers/staging/lustre/lustre/include/linux/obd.h +++ b/drivers/staging/lustre/lustre/include/linux/obd.h @@ -55,71 +55,4 @@ struct ll_iattr { unsigned int ia_attr_flags; }; -#define CLIENT_OBD_LIST_LOCK_DEBUG 1 - -struct client_obd_lock { - spinlock_t lock; - - unsigned long time; - struct task_struct *task; - const char *func; - int line; -}; - -static inline void __client_obd_list_lock(struct client_obd_lock *lock, - const char *func, int line) -{ - unsigned long cur = jiffies; - - while (1) { - if (spin_trylock(&lock->lock)) { - LASSERT(!lock->task); - lock->task = current; - lock->func = func; - lock->line = line; - lock->time = jiffies; - break; - } - - if (time_before(cur + 5 * HZ, jiffies) && - time_before(lock->time + 5 * HZ, jiffies)) { - struct task_struct *task = lock->task; - - if (!task) - continue; - - LCONSOLE_WARN("%s:%d: lock %p was acquired by <%s:%d:%s:%d> for %lu seconds.\n", - current->comm, current->pid, - lock, task->comm, task->pid, - lock->func, lock->line, - (jiffies - lock->time) / HZ); - LCONSOLE_WARN("====== for current process =====\n"); - dump_stack(); - LCONSOLE_WARN("====== end =======\n"); - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(1000 * HZ); - } - cpu_relax(); - } -} - -#define client_obd_list_lock(lock) \ - __client_obd_list_lock(lock, __func__, __LINE__) - -static inline void client_obd_list_unlock(struct client_obd_lock *lock) -{ - LASSERT(lock->task); - lock->task = NULL; - lock->time = jiffies; - spin_unlock(&lock->lock); -} - -static inline void client_obd_list_lock_init(struct client_obd_lock *lock) -{ - spin_lock_init(&lock->lock); -} - -static inline void client_obd_list_lock_done(struct client_obd_lock *lock) -{} - #endif /* __LINUX_OBD_H */ diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index 15c514c..84cc001 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -37,6 +37,7 @@ #ifndef __OBD_H #define __OBD_H +#include #include "linux/obd.h" #define IOC_OSC_TYPE 'h' @@ -293,14 +294,10 @@ struct client_obd { * blocking everywhere, but we don't want to slow down fast-path of * our main platform.) * - * Exact type of ->cl_loi_list_lock is defined in arch/obd.h together - * with client_obd_list_{un,}lock() and - * client_obd_list_lock_{init,done}() functions. - * * NB by Jinshan: though field names are still _loi_, but actually * osc_object{}s are in the list. */ - struct client_obd_lock cl_loi_list_lock; + spinlock_t cl_loi_list_lock; struct list_head cl_loi_ready_list; struct list_head cl_loi_hp_ready_list; struct list_head cl_loi_write_list; @@ -327,7 +324,7 @@ struct client_obd { atomic_t cl_lru_shrinkers; atomic_t cl_lru_in_list; struct list_head cl_lru_list; /* lru page list */ - struct client_obd_lock cl_lru_list_lock; /* page list protector */ + spinlock_t cl_lru_list_lock; /* page list protector */ /* number of in flight destroy rpcs is limited to max_rpcs_in_flight */ atomic_t cl_destroy_in_flight; diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c index b586d5a..b497ce4 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c @@ -314,7 +314,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg) INIT_LIST_HEAD(&cli->cl_loi_hp_ready_list); INIT_LIST_HEAD(&cli->cl_loi_write_list); INIT_LIST_HEAD(&cli->cl_loi_read_list); - client_obd_list_lock_init(&cli->cl_loi_list_lock); + spin_lock_init(&cli->cl_loi_list_lock); atomic_set(&cli->cl_pending_w_pages, 0); atomic_set(&cli->cl_pending_r_pages, 0); cli->cl_r_in_flight = 0; @@ -333,7 +333,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg) atomic_set(&cli->cl_lru_busy, 0); atomic_set(&cli->cl_lru_in_list, 0); INIT_LIST_HEAD(&cli->cl_lru_list); - client_obd_list_lock_init(&cli->cl_lru_list_lock); + spin_lock_init(&cli->cl_lru_list_lock); init_waitqueue_head(&cli->cl_destroy_waitq); atomic_set(&cli->cl_destroy_in_flight, 0); diff --git a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c index 38f267a..5c7a15d 100644 --- a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c +++ b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c @@ -49,9 +49,9 @@ static ssize_t max_rpcs_in_flight_show(struct kobject *kobj, obd_kobj); struct client_obd *cli = &dev->u.cli; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); len = sprintf(buf, "%u\n", cli->cl_max_rpcs_in_flight); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return len; } @@ -74,9 +74,9 @@ static ssize_t max_rpcs_in_flight_store(struct kobject *kobj, if (val < 1 || val > MDC_MAX_RIF_MAX) return -ERANGE; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); cli->cl_max_rpcs_in_flight = val; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return count; } diff --git a/drivers/staging/lustre/lustre/mdc/mdc_lib.c b/drivers/staging/lustre/lustre/mdc/mdc_lib.c index b3bfdcb..bd29eb7 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_lib.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_lib.c @@ -481,9 +481,9 @@ static int mdc_req_avail(struct client_obd *cli, struct mdc_cache_waiter *mcw) { int rc; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); rc = list_empty(&mcw->mcw_entry); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return rc; }; @@ -497,23 +497,23 @@ int mdc_enter_request(struct client_obd *cli) struct mdc_cache_waiter mcw; struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL); - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) { list_add_tail(&mcw.mcw_entry, &cli->cl_cache_waiters); init_waitqueue_head(&mcw.mcw_waitq); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); rc = l_wait_event(mcw.mcw_waitq, mdc_req_avail(cli, &mcw), &lwi); if (rc) { - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); if (list_empty(&mcw.mcw_entry)) cli->cl_r_in_flight--; list_del_init(&mcw.mcw_entry); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); } } else { cli->cl_r_in_flight++; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); } return rc; } @@ -523,7 +523,7 @@ void mdc_exit_request(struct client_obd *cli) struct list_head *l, *tmp; struct mdc_cache_waiter *mcw; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); cli->cl_r_in_flight--; list_for_each_safe(l, tmp, &cli->cl_cache_waiters) { if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) { @@ -538,5 +538,5 @@ void mdc_exit_request(struct client_obd *cli) } /* Empty waiting list? Decrease reqs in-flight number */ - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); } diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c index e6e2029..911e505 100644 --- a/drivers/staging/lustre/lustre/osc/lproc_osc.c +++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c @@ -121,9 +121,9 @@ static ssize_t max_rpcs_in_flight_store(struct kobject *kobj, atomic_add(added, &osc_pool_req_count); } - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); cli->cl_max_rpcs_in_flight = val; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return count; } @@ -139,9 +139,9 @@ static ssize_t max_dirty_mb_show(struct kobject *kobj, long val; int mult; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); val = cli->cl_dirty_max; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); mult = 1 << 20; return lprocfs_read_frac_helper(buf, PAGE_SIZE, val, mult); @@ -169,10 +169,10 @@ static ssize_t max_dirty_mb_store(struct kobject *kobj, pages_number > totalram_pages / 4) /* 1/4 of RAM */ return -ERANGE; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); cli->cl_dirty_max = (u32)(pages_number << PAGE_CACHE_SHIFT); osc_wake_cache_waiters(cli); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return count; } @@ -247,9 +247,9 @@ static ssize_t cur_dirty_bytes_show(struct kobject *kobj, struct client_obd *cli = &dev->u.cli; int len; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); len = sprintf(buf, "%lu\n", cli->cl_dirty); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return len; } @@ -264,9 +264,9 @@ static ssize_t cur_grant_bytes_show(struct kobject *kobj, struct client_obd *cli = &dev->u.cli; int len; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); len = sprintf(buf, "%lu\n", cli->cl_avail_grant); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return len; } @@ -287,12 +287,12 @@ static ssize_t cur_grant_bytes_store(struct kobject *kobj, return rc; /* this is only for shrinking grant */ - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); if (val >= cli->cl_avail_grant) { - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return -EINVAL; } - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); if (cli->cl_import->imp_state == LUSTRE_IMP_FULL) rc = osc_shrink_grant_to_target(cli, val); @@ -311,9 +311,9 @@ static ssize_t cur_lost_grant_bytes_show(struct kobject *kobj, struct client_obd *cli = &dev->u.cli; int len; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); len = sprintf(buf, "%lu\n", cli->cl_lost_grant); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return len; } @@ -585,9 +585,9 @@ static ssize_t max_pages_per_rpc_store(struct kobject *kobj, if (val == 0 || val > ocd->ocd_brw_size >> PAGE_CACHE_SHIFT) { return -ERANGE; } - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); cli->cl_max_pages_per_rpc = val; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return count; } @@ -631,7 +631,7 @@ static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v) ktime_get_real_ts64(&now); - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); seq_printf(seq, "snapshot_time: %llu.%9lu (secs.usecs)\n", (s64)now.tv_sec, (unsigned long)now.tv_nsec); @@ -715,7 +715,7 @@ static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v) break; } - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return 0; } diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index 74607933..c510659 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -1373,7 +1373,7 @@ static int osc_completion(const struct lu_env *env, struct osc_async_page *oap, static void osc_consume_write_grant(struct client_obd *cli, struct brw_page *pga) { - assert_spin_locked(&cli->cl_loi_list_lock.lock); + assert_spin_locked(&cli->cl_loi_list_lock); LASSERT(!(pga->flag & OBD_BRW_FROM_GRANT)); atomic_inc(&obd_dirty_pages); cli->cl_dirty += PAGE_CACHE_SIZE; @@ -1389,7 +1389,7 @@ static void osc_consume_write_grant(struct client_obd *cli, static void osc_release_write_grant(struct client_obd *cli, struct brw_page *pga) { - assert_spin_locked(&cli->cl_loi_list_lock.lock); + assert_spin_locked(&cli->cl_loi_list_lock); if (!(pga->flag & OBD_BRW_FROM_GRANT)) { return; } @@ -1408,7 +1408,7 @@ static void osc_release_write_grant(struct client_obd *cli, * To avoid sleeping with object lock held, it's good for us allocate enough * grants before entering into critical section. * - * client_obd_list_lock held by caller + * spin_lock held by caller */ static int osc_reserve_grant(struct client_obd *cli, unsigned int bytes) { @@ -1442,11 +1442,11 @@ static void __osc_unreserve_grant(struct client_obd *cli, static void osc_unreserve_grant(struct client_obd *cli, unsigned int reserved, unsigned int unused) { - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); __osc_unreserve_grant(cli, reserved, unused); if (unused > 0) osc_wake_cache_waiters(cli); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); } /** @@ -1467,7 +1467,7 @@ static void osc_free_grant(struct client_obd *cli, unsigned int nr_pages, { int grant = (1 << cli->cl_chunkbits) + cli->cl_extent_tax; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); atomic_sub(nr_pages, &obd_dirty_pages); cli->cl_dirty -= nr_pages << PAGE_CACHE_SHIFT; cli->cl_lost_grant += lost_grant; @@ -1479,7 +1479,7 @@ static void osc_free_grant(struct client_obd *cli, unsigned int nr_pages, cli->cl_avail_grant += grant; } osc_wake_cache_waiters(cli); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); CDEBUG(D_CACHE, "lost %u grant: %lu avail: %lu dirty: %lu\n", lost_grant, cli->cl_lost_grant, cli->cl_avail_grant, cli->cl_dirty); @@ -1491,9 +1491,9 @@ static void osc_free_grant(struct client_obd *cli, unsigned int nr_pages, */ static void osc_exit_cache(struct client_obd *cli, struct osc_async_page *oap) { - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); osc_release_write_grant(cli, &oap->oap_brw_page); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); } /** @@ -1532,9 +1532,9 @@ static int ocw_granted(struct client_obd *cli, struct osc_cache_waiter *ocw) { int rc; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); rc = list_empty(&ocw->ocw_entry); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return rc; } @@ -1556,7 +1556,7 @@ static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli, OSC_DUMP_GRANT(cli, "need:%d.\n", bytes); - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); /* force the caller to try sync io. this can jump the list * of queued writes and create a discontiguous rpc stream @@ -1587,7 +1587,7 @@ static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli, while (cli->cl_dirty > 0 || cli->cl_w_in_flight > 0) { list_add_tail(&ocw.ocw_entry, &cli->cl_cache_waiters); ocw.ocw_rc = 0; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); osc_io_unplug_async(env, cli, NULL); @@ -1596,7 +1596,7 @@ static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli, rc = l_wait_event(ocw.ocw_waitq, ocw_granted(cli, &ocw), &lwi); - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); /* l_wait_event is interrupted by signal */ if (rc < 0) { @@ -1615,7 +1615,7 @@ static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli, } } out: - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); OSC_DUMP_GRANT(cli, "returned %d.\n", rc); return rc; } @@ -1776,9 +1776,9 @@ static int osc_list_maint(struct client_obd *cli, struct osc_object *osc) { int is_ready; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); is_ready = __osc_list_maint(cli, osc); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return is_ready; } @@ -1829,10 +1829,10 @@ static void osc_ap_completion(const struct lu_env *env, struct client_obd *cli, oap->oap_interrupted = 0; if (oap->oap_cmd & OBD_BRW_WRITE && xid > 0) { - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); osc_process_ar(&cli->cl_ar, xid, rc); osc_process_ar(&loi->loi_ar, xid, rc); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); } rc = osc_completion(env, oap, oap->oap_cmd, rc); @@ -2133,7 +2133,7 @@ static void osc_check_rpcs(const struct lu_env *env, struct client_obd *cli) } cl_object_get(obj); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); lu_object_ref_add_at(&obj->co_lu, &link, "check", current); /* attempt some read/write balancing by alternating between @@ -2180,7 +2180,7 @@ static void osc_check_rpcs(const struct lu_env *env, struct client_obd *cli) lu_object_ref_del_at(&obj->co_lu, &link, "check", current); cl_object_put(env, obj); - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); } } @@ -2197,9 +2197,9 @@ static int osc_io_unplug0(const struct lu_env *env, struct client_obd *cli, * potential stack overrun problem. LU-2859 */ atomic_inc(&cli->cl_lru_shrinkers); - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); osc_check_rpcs(env, cli); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); atomic_dec(&cli->cl_lru_shrinkers); } else { CDEBUG(D_CACHE, "Queue writeback work for client %p.\n", cli); @@ -2332,9 +2332,9 @@ int osc_queue_async_io(const struct lu_env *env, struct cl_io *io, grants = 0; /* it doesn't need any grant to dirty this page */ - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); rc = osc_enter_cache_try(cli, oap, grants, 0); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); if (rc == 0) { /* try failed */ grants = 0; need_release = 1; diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index 89552d7..bb34b53a 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -608,7 +608,7 @@ enum osc_extent_state { * * LOCKING ORDER * ============= - * page lock -> client_obd_list_lock -> object lock(osc_object::oo_lock) + * page lock -> cl_loi_list_lock -> object lock(osc_object::oo_lock) */ struct osc_extent { /** red-black tree node */ diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index e02dd33..5b31351 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -456,11 +456,11 @@ void osc_lru_add_batch(struct client_obd *cli, struct list_head *plist) } if (npages > 0) { - client_obd_list_lock(&cli->cl_lru_list_lock); + spin_lock(&cli->cl_lru_list_lock); list_splice_tail(&lru, &cli->cl_lru_list); atomic_sub(npages, &cli->cl_lru_busy); atomic_add(npages, &cli->cl_lru_in_list); - client_obd_list_unlock(&cli->cl_lru_list_lock); + spin_unlock(&cli->cl_lru_list_lock); /* XXX: May set force to be true for better performance */ if (osc_cache_too_much(cli)) @@ -482,14 +482,14 @@ static void __osc_lru_del(struct client_obd *cli, struct osc_page *opg) static void osc_lru_del(struct client_obd *cli, struct osc_page *opg) { if (opg->ops_in_lru) { - client_obd_list_lock(&cli->cl_lru_list_lock); + spin_lock(&cli->cl_lru_list_lock); if (!list_empty(&opg->ops_lru)) { __osc_lru_del(cli, opg); } else { LASSERT(atomic_read(&cli->cl_lru_busy) > 0); atomic_dec(&cli->cl_lru_busy); } - client_obd_list_unlock(&cli->cl_lru_list_lock); + spin_unlock(&cli->cl_lru_list_lock); atomic_inc(cli->cl_lru_left); /* this is a great place to release more LRU pages if @@ -513,9 +513,9 @@ static void osc_lru_use(struct client_obd *cli, struct osc_page *opg) * ops_lru should be empty */ if (opg->ops_in_lru && !list_empty(&opg->ops_lru)) { - client_obd_list_lock(&cli->cl_lru_list_lock); + spin_lock(&cli->cl_lru_list_lock); __osc_lru_del(cli, opg); - client_obd_list_unlock(&cli->cl_lru_list_lock); + spin_unlock(&cli->cl_lru_list_lock); atomic_inc(&cli->cl_lru_busy); } } @@ -572,7 +572,7 @@ int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, pvec = (struct cl_page **)osc_env_info(env)->oti_pvec; io = &osc_env_info(env)->oti_io; - client_obd_list_lock(&cli->cl_lru_list_lock); + spin_lock(&cli->cl_lru_list_lock); maxscan = min(target << 1, atomic_read(&cli->cl_lru_in_list)); list_for_each_entry_safe(opg, temp, &cli->cl_lru_list, ops_lru) { struct cl_page *page; @@ -592,7 +592,7 @@ int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, struct cl_object *tmp = page->cp_obj; cl_object_get(tmp); - client_obd_list_unlock(&cli->cl_lru_list_lock); + spin_unlock(&cli->cl_lru_list_lock); if (clobj) { discard_pagevec(env, io, pvec, index); @@ -608,7 +608,7 @@ int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, io->ci_ignore_layout = 1; rc = cl_io_init(env, io, CIT_MISC, clobj); - client_obd_list_lock(&cli->cl_lru_list_lock); + spin_lock(&cli->cl_lru_list_lock); if (rc != 0) break; @@ -640,17 +640,17 @@ int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, /* Don't discard and free the page with cl_lru_list held */ pvec[index++] = page; if (unlikely(index == OTI_PVEC_SIZE)) { - client_obd_list_unlock(&cli->cl_lru_list_lock); + spin_unlock(&cli->cl_lru_list_lock); discard_pagevec(env, io, pvec, index); index = 0; - client_obd_list_lock(&cli->cl_lru_list_lock); + spin_lock(&cli->cl_lru_list_lock); } if (++count >= target) break; } - client_obd_list_unlock(&cli->cl_lru_list_lock); + spin_unlock(&cli->cl_lru_list_lock); if (clobj) { discard_pagevec(env, io, pvec, index); diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 1e378e6..372bd26 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -801,7 +801,7 @@ static void osc_announce_cached(struct client_obd *cli, struct obdo *oa, LASSERT(!(oa->o_valid & bits)); oa->o_valid |= bits; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); oa->o_dirty = cli->cl_dirty; if (unlikely(cli->cl_dirty - cli->cl_dirty_transit > cli->cl_dirty_max)) { @@ -833,7 +833,7 @@ static void osc_announce_cached(struct client_obd *cli, struct obdo *oa, oa->o_grant = cli->cl_avail_grant + cli->cl_reserved_grant; oa->o_dropped = cli->cl_lost_grant; cli->cl_lost_grant = 0; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); CDEBUG(D_CACHE, "dirty: %llu undirty: %u dropped %u grant: %llu\n", oa->o_dirty, oa->o_undirty, oa->o_dropped, oa->o_grant); @@ -849,9 +849,9 @@ void osc_update_next_shrink(struct client_obd *cli) static void __osc_update_grant(struct client_obd *cli, u64 grant) { - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); cli->cl_avail_grant += grant; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); } static void osc_update_grant(struct client_obd *cli, struct ost_body *body) @@ -889,10 +889,10 @@ out: static void osc_shrink_grant_local(struct client_obd *cli, struct obdo *oa) { - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); oa->o_grant = cli->cl_avail_grant / 4; cli->cl_avail_grant -= oa->o_grant; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); if (!(oa->o_valid & OBD_MD_FLFLAGS)) { oa->o_valid |= OBD_MD_FLFLAGS; oa->o_flags = 0; @@ -911,10 +911,10 @@ static int osc_shrink_grant(struct client_obd *cli) __u64 target_bytes = (cli->cl_max_rpcs_in_flight + 1) * (cli->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT); - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); if (cli->cl_avail_grant <= target_bytes) target_bytes = cli->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return osc_shrink_grant_to_target(cli, target_bytes); } @@ -924,7 +924,7 @@ int osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes) int rc = 0; struct ost_body *body; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); /* Don't shrink if we are already above or below the desired limit * We don't want to shrink below a single RPC, as that will negatively * impact block allocation and long-term performance. @@ -933,10 +933,10 @@ int osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes) target_bytes = cli->cl_max_pages_per_rpc << PAGE_CACHE_SHIFT; if (target_bytes >= cli->cl_avail_grant) { - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); return 0; } - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); body = kzalloc(sizeof(*body), GFP_NOFS); if (!body) @@ -944,10 +944,10 @@ int osc_shrink_grant_to_target(struct client_obd *cli, __u64 target_bytes) osc_announce_cached(cli, &body->oa, 0); - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); body->oa.o_grant = cli->cl_avail_grant - target_bytes; cli->cl_avail_grant = target_bytes; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); if (!(body->oa.o_valid & OBD_MD_FLFLAGS)) { body->oa.o_valid |= OBD_MD_FLFLAGS; body->oa.o_flags = 0; @@ -1035,7 +1035,7 @@ static void osc_init_grant(struct client_obd *cli, struct obd_connect_data *ocd) * race is tolerable here: if we're evicted, but imp_state already * left EVICTED state, then cl_dirty must be 0 already. */ - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); if (cli->cl_import->imp_state == LUSTRE_IMP_EVICTED) cli->cl_avail_grant = ocd->ocd_grant; else @@ -1053,7 +1053,7 @@ static void osc_init_grant(struct client_obd *cli, struct obd_connect_data *ocd) /* determine the appropriate chunk size used by osc_extent. */ cli->cl_chunkbits = max_t(int, PAGE_CACHE_SHIFT, ocd->ocd_blocksize); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); CDEBUG(D_CACHE, "%s, setting cl_avail_grant: %ld cl_lost_grant: %ld chunk bits: %d\n", cli->cl_import->imp_obd->obd_name, @@ -1827,7 +1827,7 @@ static int brw_interpret(const struct lu_env *env, osc_release_ppga(aa->aa_ppga, aa->aa_page_count); ptlrpc_lprocfs_brw(req, req->rq_bulk->bd_nob_transferred); - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); /* We need to decrement before osc_ap_completion->osc_wake_cache_waiters * is called so we know whether to go to sync BRWs or wait for more * RPCs to complete @@ -1837,7 +1837,7 @@ static int brw_interpret(const struct lu_env *env, else cli->cl_r_in_flight--; osc_wake_cache_waiters(cli); - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); osc_io_unplug(env, cli, NULL); return rc; @@ -2005,7 +2005,7 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, if (tmp) tmp->oap_request = ptlrpc_request_addref(req); - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); starting_offset >>= PAGE_CACHE_SHIFT; if (cmd == OBD_BRW_READ) { cli->cl_r_in_flight++; @@ -2020,7 +2020,7 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, lprocfs_oh_tally_log2(&cli->cl_write_offset_hist, starting_offset + 1); } - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); DEBUG_REQ(D_INODE, req, "%d pages, aa %p. now %dr/%dw in flight", page_count, aa, cli->cl_r_in_flight, @@ -3005,12 +3005,12 @@ static int osc_reconnect(const struct lu_env *env, if (data && (data->ocd_connect_flags & OBD_CONNECT_GRANT)) { long lost_grant; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); data->ocd_grant = (cli->cl_avail_grant + cli->cl_dirty) ?: 2 * cli_brw_size(obd); lost_grant = cli->cl_lost_grant; cli->cl_lost_grant = 0; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); CDEBUG(D_RPCTRACE, "ocd_connect_flags: %#llx ocd_version: %d ocd_grant: %d, lost: %ld.\n", data->ocd_connect_flags, @@ -3060,10 +3060,10 @@ static int osc_import_event(struct obd_device *obd, switch (event) { case IMP_EVENT_DISCON: { cli = &obd->u.cli; - client_obd_list_lock(&cli->cl_loi_list_lock); + spin_lock(&cli->cl_loi_list_lock); cli->cl_avail_grant = 0; cli->cl_lost_grant = 0; - client_obd_list_unlock(&cli->cl_loi_list_lock); + spin_unlock(&cli->cl_loi_list_lock); break; } case IMP_EVENT_INACTIVE: { -- cgit v0.10.2 From 1929c433854c7673fd2d983ef8cf15cf13306d5c Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:37 -0400 Subject: staging/lustre/llite: remove some cl wrappers In llite remove the wrapper functions and macros: cl_i2info() cl_i2sbi() cl_iattr2fd() cl_inode_info cl_inode_mode() cl_inode_{a,m,c}time() cl_isize_{read,write,write_nolock}() Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/12850 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675 Reviewed-by: James Simmons Reviewed-by: Lai Siyao Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 4e0a3e5..2ca4b0e 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -191,7 +191,7 @@ static int ll_dir_filler(void *_hash, struct page *page0) body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY); /* Checked by mdc_readpage() */ if (body->valid & OBD_MD_FLSIZE) - cl_isize_write(inode, body->size); + i_size_write(inode, body->size); nrdpgs = (request->rq_bulk->bd_nob_transferred+PAGE_CACHE_SIZE-1) >> PAGE_CACHE_SHIFT; diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 8fc9da0..c3c258f 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -1036,7 +1036,7 @@ int ll_merge_attr(const struct lu_env *env, struct inode *inode) CDEBUG(D_VFSTRACE, DFID " updating i_size %llu\n", PFID(&lli->lli_fid), attr->cat_size); - cl_isize_write_nolock(inode, attr->cat_size); + i_size_write(inode, attr->cat_size); inode->i_blocks = attr->cat_blocks; @@ -1592,7 +1592,7 @@ ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) LASSERT(!fd->fd_grouplock.cg_lock); spin_unlock(&lli->lli_lock); - rc = cl_get_grouplock(cl_i2info(inode)->lli_clob, + rc = cl_get_grouplock(ll_i2info(inode)->lli_clob, arg, (file->f_flags & O_NONBLOCK), &grouplock); if (rc) return rc; @@ -2614,7 +2614,7 @@ int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end, return PTR_ERR(env); io = ccc_env_thread_io(env); - io->ci_obj = cl_i2info(inode)->lli_clob; + io->ci_obj = ll_i2info(inode)->lli_clob; io->ci_ignore_layout = ignore_layout; /* initialize parameters for sync */ @@ -3629,7 +3629,7 @@ int ll_layout_restore(struct inode *inode) sizeof(hur->hur_user_item[0].hui_fid)); hur->hur_user_item[0].hui_extent.length = -1; hur->hur_request.hr_itemcount = 1; - rc = obd_iocontrol(LL_IOC_HSM_REQUEST, cl_i2sbi(inode)->ll_md_exp, + rc = obd_iocontrol(LL_IOC_HSM_REQUEST, ll_i2sbi(inode)->ll_md_exp, len, hur, NULL); kfree(hur); return rc; diff --git a/drivers/staging/lustre/lustre/llite/glimpse.c b/drivers/staging/lustre/lustre/llite/glimpse.c index 88bc7c9..9b0e2ec 100644 --- a/drivers/staging/lustre/lustre/llite/glimpse.c +++ b/drivers/staging/lustre/lustre/llite/glimpse.c @@ -87,7 +87,7 @@ int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, struct inode *inode, struct cl_object *clob, int agl) { struct cl_lock_descr *descr = &ccc_env_info(env)->cti_descr; - struct cl_inode_info *lli = cl_i2info(inode); + struct ll_inode_info *lli = ll_i2info(inode); const struct lu_fid *fid = lu_object_fid(&clob->co_lu); struct ccc_io *cio = ccc_env_io(env); struct cl_lock *lock; @@ -140,7 +140,7 @@ int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, result = cl_wait(env, lock); if (result == 0) { ll_merge_attr(env, inode); - if (cl_isize_read(inode) > 0 && + if (i_size_read(inode) > 0 && inode->i_blocks == 0) { /* * LU-417: Add dirty pages block count @@ -167,11 +167,11 @@ static int cl_io_get(struct inode *inode, struct lu_env **envout, { struct lu_env *env; struct cl_io *io; - struct cl_inode_info *lli = cl_i2info(inode); + struct ll_inode_info *lli = ll_i2info(inode); struct cl_object *clob = lli->lli_clob; int result; - if (S_ISREG(cl_inode_mode(inode))) { + if (S_ISREG(inode->i_mode)) { env = cl_env_get(refcheck); if (!IS_ERR(env)) { io = ccc_env_thread_io(env); @@ -240,7 +240,7 @@ int cl_local_size(struct inode *inode) int result; int refcheck; - if (!cl_i2info(inode)->lli_has_smd) + if (!ll_i2info(inode)->lli_has_smd) return 0; result = cl_io_get(inode, &env, &io, &refcheck); diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 4871d0f..fde96d3 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -417,9 +417,9 @@ int ccc_object_glimpse(const struct lu_env *env, { struct inode *inode = ccc_object_inode(obj); - lvb->lvb_mtime = cl_inode_mtime(inode); - lvb->lvb_atime = cl_inode_atime(inode); - lvb->lvb_ctime = cl_inode_ctime(inode); + lvb->lvb_mtime = LTIME_S(inode->i_mtime); + lvb->lvb_atime = LTIME_S(inode->i_atime); + lvb->lvb_ctime = LTIME_S(inode->i_ctime); /* * LU-417: Add dirty pages block count lest i_blocks reports 0, some * "cp" or "tar" on remote node may think it's a completely sparse file @@ -731,7 +731,7 @@ int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, * linux-2.6.18-128.1.1 miss to do that. * --bug 17336 */ - loff_t size = cl_isize_read(inode); + loff_t size = i_size_read(inode); loff_t cur_index = start >> PAGE_CACHE_SHIFT; loff_t size_index = (size - 1) >> PAGE_CACHE_SHIFT; @@ -752,11 +752,11 @@ int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, * which will always be >= the kms value here. * b=11081 */ - if (cl_isize_read(inode) < kms) { - cl_isize_write_nolock(inode, kms); + if (i_size_read(inode) < kms) { + i_size_write(inode, kms); CDEBUG(D_VFSTRACE, DFID " updating i_size %llu\n", PFID(lu_object_fid(&obj->co_lu)), - (__u64)cl_isize_read(inode)); + (__u64)i_size_read(inode)); } } ccc_object_size_unlock(obj); @@ -816,14 +816,14 @@ void ccc_req_attr_set(const struct lu_env *env, if (slice->crs_req->crq_type == CRT_WRITE) { if (flags & OBD_MD_FLEPOCH) { oa->o_valid |= OBD_MD_FLEPOCH; - oa->o_ioepoch = cl_i2info(inode)->lli_ioepoch; + oa->o_ioepoch = ll_i2info(inode)->lli_ioepoch; valid_flags |= OBD_MD_FLMTIME | OBD_MD_FLCTIME | OBD_MD_FLUID | OBD_MD_FLGID; } } obdo_from_inode(oa, inode, valid_flags & flags); - obdo_set_parent_fid(oa, &cl_i2info(inode)->lli_fid); - memcpy(attr->cra_jobid, cl_i2info(inode)->lli_jobid, + obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid); + memcpy(attr->cra_jobid, ll_i2info(inode)->lli_jobid, JOBSTATS_JOBID_SIZE); } @@ -844,7 +844,7 @@ int cl_setattr_ost(struct inode *inode, const struct iattr *attr) return PTR_ERR(env); io = ccc_env_thread_io(env); - io->ci_obj = cl_i2info(inode)->lli_clob; + io->ci_obj = ll_i2info(inode)->lli_clob; io->u.ci_setattr.sa_attr.lvb_atime = LTIME_S(attr->ia_atime); io->u.ci_setattr.sa_attr.lvb_mtime = LTIME_S(attr->ia_mtime); @@ -860,7 +860,7 @@ again: /* populate the file descriptor for ftruncate to honor * group lock - see LU-787 */ - cio->cui_fd = cl_iattr2fd(inode, attr); + cio->cui_fd = LUSTRE_FPRIVATE(attr->ia_file); result = cl_io_loop(env, io); } else { @@ -949,11 +949,10 @@ struct page *cl2vm_page(const struct cl_page_slice *slice) int ccc_object_invariant(const struct cl_object *obj) { struct inode *inode = ccc_object_inode(obj); - struct cl_inode_info *lli = cl_i2info(inode); + struct ll_inode_info *lli = ll_i2info(inode); - return (S_ISREG(cl_inode_mode(inode)) || - /* i_mode of unlinked inode is zeroed. */ - cl_inode_mode(inode) == 0) && lli->lli_clob == obj; + return (S_ISREG(inode->i_mode) || inode->i_mode == 0) && + lli->lli_clob == obj; } struct inode *ccc_object_inode(const struct cl_object *obj) @@ -973,7 +972,7 @@ struct inode *ccc_object_inode(const struct cl_object *obj) int cl_file_inode_init(struct inode *inode, struct lustre_md *md) { struct lu_env *env; - struct cl_inode_info *lli; + struct ll_inode_info *lli; struct cl_object *clob; struct lu_site *site; struct lu_fid *fid; @@ -987,14 +986,14 @@ int cl_file_inode_init(struct inode *inode, struct lustre_md *md) int refcheck; LASSERT(md->body->valid & OBD_MD_FLID); - LASSERT(S_ISREG(cl_inode_mode(inode))); + LASSERT(S_ISREG(inode->i_mode)); env = cl_env_get(&refcheck); if (IS_ERR(env)) return PTR_ERR(env); - site = cl_i2sbi(inode)->ll_site; - lli = cl_i2info(inode); + site = ll_i2sbi(inode)->ll_site; + lli = ll_i2info(inode); fid = &lli->lli_fid; LASSERT(fid_is_sane(fid)); @@ -1071,7 +1070,7 @@ static void cl_object_put_last(struct lu_env *env, struct cl_object *obj) void cl_inode_fini(struct inode *inode) { struct lu_env *env; - struct cl_inode_info *lli = cl_i2info(inode); + struct ll_inode_info *lli = ll_i2info(inode); struct cl_object *clob = lli->lli_clob; int refcheck; int emergency; @@ -1168,10 +1167,10 @@ __u32 cl_fid_build_gen(const struct lu_fid *fid) */ struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode) { - return lov_lsm_get(cl_i2info(inode)->lli_clob); + return lov_lsm_get(ll_i2info(inode)->lli_clob); } inline void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm) { - lov_lsm_put(cl_i2info(inode)->lli_clob, lsm); + lov_lsm_put(ll_i2info(inode)->lli_clob, lsm); } diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index c1d747a..ffed507 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -1293,38 +1293,6 @@ typedef enum llioc_iter (*llioc_callback_t)(struct inode *inode, void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd); void ll_iocontrol_unregister(void *magic); -/* lclient compat stuff */ -#define cl_inode_info ll_inode_info -#define cl_i2info(info) ll_i2info(info) -#define cl_inode_mode(inode) ((inode)->i_mode) -#define cl_i2sbi ll_i2sbi - -static inline struct ll_file_data *cl_iattr2fd(struct inode *inode, - const struct iattr *attr) -{ - LASSERT(attr->ia_valid & ATTR_FILE); - return LUSTRE_FPRIVATE(attr->ia_file); -} - -static inline void cl_isize_write_nolock(struct inode *inode, loff_t kms) -{ - LASSERT(mutex_is_locked(&ll_i2info(inode)->lli_size_mutex)); - i_size_write(inode, kms); -} - -static inline void cl_isize_write(struct inode *inode, loff_t kms) -{ - ll_inode_size_lock(inode); - i_size_write(inode, kms); - ll_inode_size_unlock(inode); -} - -#define cl_isize_read(inode) i_size_read(inode) - -#define cl_inode_atime(inode) LTIME_S((inode)->i_atime) -#define cl_inode_ctime(inode) LTIME_S((inode)->i_ctime) -#define cl_inode_mtime(inode) LTIME_S((inode)->i_mtime) - int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end, enum cl_fsync_mode mode, int ignore_layout); diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 0b4e0db..041d221 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -1698,7 +1698,7 @@ void ll_read_inode2(struct inode *inode, void *opaque) void ll_delete_inode(struct inode *inode) { - struct cl_inode_info *lli = cl_i2info(inode); + struct ll_inode_info *lli = ll_i2info(inode); if (S_ISREG(inode->i_mode) && lli->lli_clob) /* discard all dirty pages before truncating them, required by diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c index b9a1d01..d03eb2b 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_object.c +++ b/drivers/staging/lustre/lustre/llite/vvp_object.c @@ -112,7 +112,7 @@ static int vvp_attr_set(const struct lu_env *env, struct cl_object *obj, if (valid & CAT_CTIME) inode->i_ctime.tv_sec = attr->cat_ctime; if (0 && valid & CAT_SIZE) - cl_isize_write_nolock(inode, attr->cat_size); + i_size_write(inode, attr->cat_size); /* not currently necessary */ if (0 && valid & (CAT_UID|CAT_GID|CAT_SIZE)) mark_inode_dirty(inode); @@ -196,7 +196,7 @@ static const struct lu_object_operations vvp_lu_obj_ops = { struct ccc_object *cl_inode2ccc(struct inode *inode) { - struct cl_inode_info *lli = cl_i2info(inode); + struct ll_inode_info *lli = ll_i2info(inode); struct cl_object *obj = lli->lli_clob; struct lu_object *lu; -- cgit v0.10.2 From bb41292b4c4e956b5b776970d28630f04c4dd609 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Wed, 30 Mar 2016 19:48:38 -0400 Subject: staging/lustre: Remove struct ll_iattr This was a compat code from the time it had ia_attr_flags. Instead convert all the cryptic callers that did ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags into direct access to op_data->op_attr_flags This also makes lustre/include/linux/obd.h not needed anymore, so remove it. Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/linux/obd.h b/drivers/staging/lustre/lustre/include/linux/obd.h deleted file mode 100644 index e1063e8..0000000 --- a/drivers/staging/lustre/lustre/include/linux/obd.h +++ /dev/null @@ -1,58 +0,0 @@ -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. - * - * GPL HEADER END - */ -/* - * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - */ - -#ifndef __LINUX_OBD_H -#define __LINUX_OBD_H - -#ifndef __OBD_H -#error Do not #include this file directly. #include instead -#endif - -#include "../obd_support.h" - -#include -#include -#include /* for struct task_struct, for current.h */ -#include - -#include "../lustre_intent.h" - -struct ll_iattr { - struct iattr iattr; - unsigned int ia_attr_flags; -}; - -#endif /* __LINUX_OBD_H */ diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index 84cc001..ded7b10 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -38,7 +38,6 @@ #define __OBD_H #include -#include "linux/obd.h" #define IOC_OSC_TYPE 'h' #define IOC_OSC_MIN_NR 20 @@ -55,6 +54,7 @@ #include "lustre_export.h" #include "lustre_fid.h" #include "lustre_fld.h" +#include "lustre_intent.h" #define MAX_OBD_DEVICES 8192 diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index c3c258f..bf2a5ee 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -45,6 +45,7 @@ #include "../include/lustre_lite.h" #include #include +#include #include "llite_internal.h" #include "../include/lustre/ll_fiemap.h" @@ -87,8 +88,7 @@ void ll_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data, op_data->op_attr.ia_ctime = inode->i_ctime; op_data->op_attr.ia_size = i_size_read(inode); op_data->op_attr_blocks = inode->i_blocks; - ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = - ll_inode_to_ext_flags(inode->i_flags); + op_data->op_attr_flags = ll_inode_to_ext_flags(inode->i_flags); op_data->op_ioepoch = ll_i2info(inode)->lli_ioepoch; if (fh) op_data->op_handle = *fh; diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 041d221..0f01cfc 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -1771,7 +1771,7 @@ int ll_iocontrol(struct inode *inode, struct file *file, if (IS_ERR(op_data)) return PTR_ERR(op_data); - ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = flags; + op_data->op_attr_flags = flags; op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG; rc = md_setattr(sbi->ll_md_exp, op_data, NULL, 0, NULL, 0, &req, NULL); diff --git a/drivers/staging/lustre/lustre/mdc/mdc_lib.c b/drivers/staging/lustre/lustre/mdc/mdc_lib.c index bd29eb7..be0acf7 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_lib.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_lib.c @@ -279,8 +279,7 @@ static void mdc_setattr_pack_rec(struct mdt_rec_setattr *rec, rec->sa_atime = LTIME_S(op_data->op_attr.ia_atime); rec->sa_mtime = LTIME_S(op_data->op_attr.ia_mtime); rec->sa_ctime = LTIME_S(op_data->op_attr.ia_ctime); - rec->sa_attr_flags = - ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags; + rec->sa_attr_flags = op_data->op_attr_flags; if ((op_data->op_attr.ia_valid & ATTR_GID) && in_group_p(op_data->op_attr.ia_gid)) rec->sa_suppgid = diff --git a/drivers/staging/lustre/lustre/obdclass/obdo.c b/drivers/staging/lustre/lustre/obdclass/obdo.c index e6436cb..748e33f 100644 --- a/drivers/staging/lustre/lustre/obdclass/obdo.c +++ b/drivers/staging/lustre/lustre/obdclass/obdo.c @@ -185,8 +185,7 @@ void md_from_obdo(struct md_op_data *op_data, struct obdo *oa, u32 valid) op_data->op_attr.ia_valid |= ATTR_BLOCKS; } if (valid & OBD_MD_FLFLAGS) { - ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = - oa->o_flags; + op_data->op_attr_flags = oa->o_flags; op_data->op_attr.ia_valid |= ATTR_ATTR_FLAG; } } -- cgit v0.10.2 From e5c4e635c36354c0f4aa6a00b1787d15ee689528 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:39 -0400 Subject: staging/lustre/clio: generalize cl_sync_io To make cl_sync_io interfaces not just wait for pages, but to be a generic synchronization mechanism. Also remove cl_io_cancel that became not used. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/8656 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4198 Reviewed-by: Bobi Jam Reviewed-by: Lai Siyao Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index 69b40f5..91261b1 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -3125,13 +3125,18 @@ struct cl_sync_io { atomic_t csi_barrier; /** completion to be signaled when transfer is complete. */ wait_queue_head_t csi_waitq; + /** callback to invoke when this IO is finished */ + void (*csi_end_io)(const struct lu_env *, + struct cl_sync_io *); }; -void cl_sync_io_init(struct cl_sync_io *anchor, int nrpages); -int cl_sync_io_wait(const struct lu_env *env, struct cl_io *io, - struct cl_page_list *queue, struct cl_sync_io *anchor, +void cl_sync_io_init(struct cl_sync_io *anchor, int nr, + void (*end)(const struct lu_env *, struct cl_sync_io *)); +int cl_sync_io_wait(const struct lu_env *env, struct cl_sync_io *anchor, long timeout); -void cl_sync_io_note(struct cl_sync_io *anchor, int ioret); +void cl_sync_io_note(const struct lu_env *env, struct cl_sync_io *anchor, + int ioret); +void cl_sync_io_end(const struct lu_env *env, struct cl_sync_io *anchor); /** @} cl_sync_io */ diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c index 65d6cee..6a8dd9f 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_io.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c @@ -800,6 +800,9 @@ int cl_io_submit_rw(const struct lu_env *env, struct cl_io *io, } EXPORT_SYMBOL(cl_io_submit_rw); +static void cl_page_list_assume(const struct lu_env *env, + struct cl_io *io, struct cl_page_list *plist); + /** * Submit a sync_io and wait for the IO to be finished, or error happens. * If \a timeout is zero, it means to wait for the IO unconditionally. @@ -817,7 +820,7 @@ int cl_io_submit_sync(const struct lu_env *env, struct cl_io *io, pg->cp_sync_io = anchor; } - cl_sync_io_init(anchor, queue->c2_qin.pl_nr); + cl_sync_io_init(anchor, queue->c2_qin.pl_nr, &cl_sync_io_end); rc = cl_io_submit_rw(env, io, iot, queue); if (rc == 0) { /* @@ -828,12 +831,12 @@ int cl_io_submit_sync(const struct lu_env *env, struct cl_io *io, */ cl_page_list_for_each(pg, &queue->c2_qin) { pg->cp_sync_io = NULL; - cl_sync_io_note(anchor, 1); + cl_sync_io_note(env, anchor, 1); } /* wait for the IO to be finished. */ - rc = cl_sync_io_wait(env, io, &queue->c2_qout, - anchor, timeout); + rc = cl_sync_io_wait(env, anchor, timeout); + cl_page_list_assume(env, io, &queue->c2_qout); } else { LASSERT(list_empty(&queue->c2_qout.pl_pages)); cl_page_list_for_each(pg, &queue->c2_qin) @@ -844,25 +847,6 @@ int cl_io_submit_sync(const struct lu_env *env, struct cl_io *io, EXPORT_SYMBOL(cl_io_submit_sync); /** - * Cancel an IO which has been submitted by cl_io_submit_rw. - */ -static int cl_io_cancel(const struct lu_env *env, struct cl_io *io, - struct cl_page_list *queue) -{ - struct cl_page *page; - int result = 0; - - CERROR("Canceling ongoing page transmission\n"); - cl_page_list_for_each(page, queue) { - int rc; - - rc = cl_page_cancel(env, page); - result = result ?: rc; - } - return result; -} - -/** * Main io loop. * * Pumps io through iterations calling @@ -1433,25 +1417,38 @@ void cl_req_attr_set(const struct lu_env *env, struct cl_req *req, } EXPORT_SYMBOL(cl_req_attr_set); +/* cl_sync_io_callback assumes the caller must call cl_sync_io_wait() to + * wait for the IO to finish. + */ +void cl_sync_io_end(const struct lu_env *env, struct cl_sync_io *anchor) +{ + wake_up_all(&anchor->csi_waitq); + + /* it's safe to nuke or reuse anchor now */ + atomic_set(&anchor->csi_barrier, 0); +} +EXPORT_SYMBOL(cl_sync_io_end); /** - * Initialize synchronous io wait anchor, for transfer of \a nrpages pages. + * Initialize synchronous io wait anchor */ -void cl_sync_io_init(struct cl_sync_io *anchor, int nrpages) +void cl_sync_io_init(struct cl_sync_io *anchor, int nr, + void (*end)(const struct lu_env *, struct cl_sync_io *)) { init_waitqueue_head(&anchor->csi_waitq); - atomic_set(&anchor->csi_sync_nr, nrpages); - atomic_set(&anchor->csi_barrier, nrpages > 0); + atomic_set(&anchor->csi_sync_nr, nr); + atomic_set(&anchor->csi_barrier, nr > 0); anchor->csi_sync_rc = 0; + anchor->csi_end_io = end; + LASSERT(end); } EXPORT_SYMBOL(cl_sync_io_init); /** - * Wait until all transfer completes. Transfer completion routine has to call - * cl_sync_io_note() for every page. + * Wait until all IO completes. Transfer completion routine has to call + * cl_sync_io_note() for every entity. */ -int cl_sync_io_wait(const struct lu_env *env, struct cl_io *io, - struct cl_page_list *queue, struct cl_sync_io *anchor, +int cl_sync_io_wait(const struct lu_env *env, struct cl_sync_io *anchor, long timeout) { struct l_wait_info lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(timeout), @@ -1464,11 +1461,9 @@ int cl_sync_io_wait(const struct lu_env *env, struct cl_io *io, atomic_read(&anchor->csi_sync_nr) == 0, &lwi); if (rc < 0) { - CERROR("SYNC IO failed with error: %d, try to cancel %d remaining pages\n", + CERROR("IO failed: %d, still wait for %d remaining entries\n", rc, atomic_read(&anchor->csi_sync_nr)); - (void)cl_io_cancel(env, io, queue); - lwi = (struct l_wait_info) { 0 }; (void)l_wait_event(anchor->csi_waitq, atomic_read(&anchor->csi_sync_nr) == 0, @@ -1477,14 +1472,12 @@ int cl_sync_io_wait(const struct lu_env *env, struct cl_io *io, rc = anchor->csi_sync_rc; } LASSERT(atomic_read(&anchor->csi_sync_nr) == 0); - cl_page_list_assume(env, io, queue); /* wait until cl_sync_io_note() has done wakeup */ while (unlikely(atomic_read(&anchor->csi_barrier) != 0)) { cpu_relax(); } - POISON(anchor, 0x5a, sizeof(*anchor)); return rc; } EXPORT_SYMBOL(cl_sync_io_wait); @@ -1492,7 +1485,8 @@ EXPORT_SYMBOL(cl_sync_io_wait); /** * Indicate that transfer of a single page completed. */ -void cl_sync_io_note(struct cl_sync_io *anchor, int ioret) +void cl_sync_io_note(const struct lu_env *env, struct cl_sync_io *anchor, + int ioret) { if (anchor->csi_sync_rc == 0 && ioret < 0) anchor->csi_sync_rc = ioret; @@ -1503,9 +1497,9 @@ void cl_sync_io_note(struct cl_sync_io *anchor, int ioret) */ LASSERT(atomic_read(&anchor->csi_sync_nr) > 0); if (atomic_dec_and_test(&anchor->csi_sync_nr)) { - wake_up_all(&anchor->csi_waitq); - /* it's safe to nuke or reuse anchor now */ - atomic_set(&anchor->csi_barrier, 0); + LASSERT(anchor->csi_end_io); + anchor->csi_end_io(env, anchor); + /* Can't access anchor any more */ } } EXPORT_SYMBOL(cl_sync_io_note); diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c index 506a9f9..ad7f0ae 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c @@ -887,7 +887,7 @@ void cl_page_completion(const struct lu_env *env, cl_page_put(env, pg); if (anchor) - cl_sync_io_note(anchor, ioret); + cl_sync_io_note(env, anchor, ioret); } EXPORT_SYMBOL(cl_page_completion); -- cgit v0.10.2 From 06563b5606da7635b1fd5d121e7bd6d221e23db4 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:40 -0400 Subject: staging/lustre/clio: cl_lock simplification In this patch, the cl_lock cache is eliminated. cl_lock is turned into a cacheless data container for the requirements of locks to complete the IO. cl_lock is created before I/O starts and destroyed when the I/O is complete. cl_lock depends on LDLM lock to fulfill lock semantics. LDLM lock is attached to cl_lock at OSC layer. LDLM lock is still cacheable. Two major methods are supported for cl_lock: clo_enqueue and clo_cancel. A cl_lock is enqueued by cl_lock_request(), which will call clo_enqueue() methods for each layer to enqueue the lock. At the LOV layer, if a cl_lock consists of multiple sub cl_locks, each sub locks will be enqueued correspondingly. At OSC layer, the lock enqueue request will tend to reuse cached LDLM lock; otherwise a new LDLM lock will have to be requested from OST side. cl_lock_cancel() must be called to release a cl_lock after use. clo_cancel() method will be called for each layer to release the resource held by this lock. At OSC layer, the reference count of LDLM lock, which is held at clo_enqueue time, is released. LDLM lock can only be canceled if there is no cl_lock using it. Signed-off-by: Bobi Jam Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/10858 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3259 Reviewed-by: John L. Hammond Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index 91261b1..8f9512e 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -82,7 +82,6 @@ * - i_mutex * - PG_locked * - cl_object_header::coh_page_guard - * - cl_object_header::coh_lock_guard * - lu_site::ls_guard * * See the top comment in cl_object.c for the description of overall locking and @@ -404,16 +403,6 @@ struct cl_object_header { * here. */ struct lu_object_header coh_lu; - /** \name locks - * \todo XXX move locks below to the separate cache-lines, they are - * mostly useless otherwise. - */ - /** @{ */ - /** Lock protecting lock list. */ - spinlock_t coh_lock_guard; - /** @} locks */ - /** List of cl_lock's granted for this object. */ - struct list_head coh_locks; /** * Parent object. It is assumed that an object has a well-defined @@ -795,16 +784,9 @@ struct cl_page_slice { /** * Lock mode. For the client extent locks. * - * \warning: cl_lock_mode_match() assumes particular ordering here. * \ingroup cl_lock */ enum cl_lock_mode { - /** - * Mode of a lock that protects no data, and exists only as a - * placeholder. This is used for `glimpse' requests. A phantom lock - * might get promoted to real lock at some point. - */ - CLM_PHANTOM, CLM_READ, CLM_WRITE, CLM_GROUP @@ -1114,12 +1096,6 @@ static inline struct page *cl_page_vmpage(struct cl_page *page) * (struct cl_lock) and a list of layers (struct cl_lock_slice), linked to * cl_lock::cll_layers list through cl_lock_slice::cls_linkage. * - * All locks for a given object are linked into cl_object_header::coh_locks - * list (protected by cl_object_header::coh_lock_guard spin-lock) through - * cl_lock::cll_linkage. Currently this list is not sorted in any way. We can - * sort it in starting lock offset, or use altogether different data structure - * like a tree. - * * Typical cl_lock consists of the two layers: * * - vvp_lock (vvp specific data), and @@ -1320,289 +1296,21 @@ struct cl_lock_descr { __u32 cld_enq_flags; }; -#define DDESCR "%s(%d):[%lu, %lu]" +#define DDESCR "%s(%d):[%lu, %lu]:%x" #define PDESCR(descr) \ cl_lock_mode_name((descr)->cld_mode), (descr)->cld_mode, \ - (descr)->cld_start, (descr)->cld_end + (descr)->cld_start, (descr)->cld_end, (descr)->cld_enq_flags const char *cl_lock_mode_name(const enum cl_lock_mode mode); /** - * Lock state-machine states. - * - * \htmlonly - * 
- *
- * Possible state transitions:
- *
- *	      +------------------>NEW
- *	      |		    |
- *	      |		    | cl_enqueue_try()
- *	      |		    |
- *	      |    cl_unuse_try()  V
- *	      |  +--------------QUEUING (*)
- *	      |  |		 |
- *	      |  |		 | cl_enqueue_try()
- *	      |  |		 |
- *	      |  | cl_unuse_try()  V
- *    sub-lock  |  +-------------ENQUEUED (*)
- *    canceled  |  |		 |
- *	      |  |		 | cl_wait_try()
- *	      |  |		 |
- *	      |  |		(R)
- *	      |  |		 |
- *	      |  |		 V
- *	      |  |		HELD<---------+
- *	      |  |		 |	    |
- *	      |  |		 |	    | cl_use_try()
- *	      |  |  cl_unuse_try() |	    |
- *	      |  |		 |	    |
- *	      |  |		 V	 ---+
- *	      |  +------------>INTRANSIT (D) <--+
- *	      |		    |	    |
- *	      |     cl_unuse_try() |	    | cached lock found
- *	      |		    |	    | cl_use_try()
- *	      |		    |	    |
- *	      |		    V	    |
- *	      +------------------CACHED---------+
- *				   |
- *				  (C)
- *				   |
- *				   V
- *				FREEING
- *
- * Legend:
- *
- *	 In states marked with (*) transition to the same state (i.e., a loop
- *	 in the diagram) is possible.
- *
- *	 (R) is the point where Receive call-back is invoked: it allows layers
- *	 to handle arrival of lock reply.
- *
- *	 (C) is the point where Cancellation call-back is invoked.
- *
- *	 (D) is the transit state which means the lock is changing.
- *
- *	 Transition to FREEING state is possible from any other state in the
- *	 diagram in case of unrecoverable error.
- *
- * \endhtmlonly - * - * These states are for individual cl_lock object. Top-lock and its sub-locks - * can be in the different states. Another way to say this is that we have - * nested state-machines. - * - * Separate QUEUING and ENQUEUED states are needed to support non-blocking - * operation for locks with multiple sub-locks. Imagine lock on a file F, that - * intersects 3 stripes S0, S1, and S2. To enqueue F client has to send - * enqueue to S0, wait for its completion, then send enqueue for S1, wait for - * its completion and at last enqueue lock for S2, and wait for its - * completion. In that case, top-lock is in QUEUING state while S0, S1 are - * handled, and is in ENQUEUED state after enqueue to S2 has been sent (note - * that in this case, sub-locks move from state to state, and top-lock remains - * in the same state). - */ -enum cl_lock_state { - /** - * Lock that wasn't yet enqueued - */ - CLS_NEW, - /** - * Enqueue is in progress, blocking for some intermediate interaction - * with the other side. - */ - CLS_QUEUING, - /** - * Lock is fully enqueued, waiting for server to reply when it is - * granted. - */ - CLS_ENQUEUED, - /** - * Lock granted, actively used by some IO. - */ - CLS_HELD, - /** - * This state is used to mark the lock is being used, or unused. - * We need this state because the lock may have several sublocks, - * so it's impossible to have an atomic way to bring all sublocks - * into CLS_HELD state at use case, or all sublocks to CLS_CACHED - * at unuse case. - * If a thread is referring to a lock, and it sees the lock is in this - * state, it must wait for the lock. - * See state diagram for details. - */ - CLS_INTRANSIT, - /** - * Lock granted, not used. - */ - CLS_CACHED, - /** - * Lock is being destroyed. - */ - CLS_FREEING, - CLS_NR -}; - -enum cl_lock_flags { - /** - * lock has been cancelled. This flag is never cleared once set (by - * cl_lock_cancel0()). - */ - CLF_CANCELLED = 1 << 0, - /** cancellation is pending for this lock. */ - CLF_CANCELPEND = 1 << 1, - /** destruction is pending for this lock. */ - CLF_DOOMED = 1 << 2, - /** from enqueue RPC reply upcall. */ - CLF_FROM_UPCALL = 1 << 3, -}; - -/** - * Lock closure. - * - * Lock closure is a collection of locks (both top-locks and sub-locks) that - * might be updated in a result of an operation on a certain lock (which lock - * this is a closure of). - * - * Closures are needed to guarantee dead-lock freedom in the presence of - * - * - nested state-machines (top-lock state-machine composed of sub-lock - * state-machines), and - * - * - shared sub-locks. - * - * Specifically, many operations, such as lock enqueue, wait, unlock, - * etc. start from a top-lock, and then operate on a sub-locks of this - * top-lock, holding a top-lock mutex. When sub-lock state changes as a result - * of such operation, this change has to be propagated to all top-locks that - * share this sub-lock. Obviously, no natural lock ordering (e.g., - * top-to-bottom or bottom-to-top) captures this scenario, so try-locking has - * to be used. Lock closure systematizes this try-and-repeat logic. - */ -struct cl_lock_closure { - /** - * Lock that is mutexed when closure construction is started. When - * closure in is `wait' mode (cl_lock_closure::clc_wait), mutex on - * origin is released before waiting. - */ - struct cl_lock *clc_origin; - /** - * List of enclosed locks, so far. Locks are linked here through - * cl_lock::cll_inclosure. - */ - struct list_head clc_list; - /** - * True iff closure is in a `wait' mode. This determines what - * cl_lock_enclosure() does when a lock L to be added to the closure - * is currently mutexed by some other thread. - * - * If cl_lock_closure::clc_wait is not set, then closure construction - * fails with CLO_REPEAT immediately. - * - * In wait mode, cl_lock_enclosure() waits until next attempt to build - * a closure might succeed. To this end it releases an origin mutex - * (cl_lock_closure::clc_origin), that has to be the only lock mutex - * owned by the current thread, and then waits on L mutex (by grabbing - * it and immediately releasing), before returning CLO_REPEAT to the - * caller. - */ - int clc_wait; - /** Number of locks in the closure. */ - int clc_nr; -}; - -/** * Layered client lock. */ struct cl_lock { - /** Reference counter. */ - atomic_t cll_ref; /** List of slices. Immutable after creation. */ struct list_head cll_layers; - /** - * Linkage into cl_lock::cll_descr::cld_obj::coh_locks list. Protected - * by cl_lock::cll_descr::cld_obj::coh_lock_guard. - */ - struct list_head cll_linkage; - /** - * Parameters of this lock. Protected by - * cl_lock::cll_descr::cld_obj::coh_lock_guard nested within - * cl_lock::cll_guard. Modified only on lock creation and in - * cl_lock_modify(). - */ + /** lock attribute, extent, cl_object, etc. */ struct cl_lock_descr cll_descr; - /** Protected by cl_lock::cll_guard. */ - enum cl_lock_state cll_state; - /** signals state changes. */ - wait_queue_head_t cll_wq; - /** - * Recursive lock, most fields in cl_lock{} are protected by this. - * - * Locking rules: this mutex is never held across network - * communication, except when lock is being canceled. - * - * Lock ordering: a mutex of a sub-lock is taken first, then a mutex - * on a top-lock. Other direction is implemented through a - * try-lock-repeat loop. Mutices of unrelated locks can be taken only - * by try-locking. - * - * \see osc_lock_enqueue_wait(), lov_lock_cancel(), lov_sublock_wait(). - */ - struct mutex cll_guard; - struct task_struct *cll_guarder; - int cll_depth; - - /** - * the owner for INTRANSIT state - */ - struct task_struct *cll_intransit_owner; - int cll_error; - /** - * Number of holds on a lock. A hold prevents a lock from being - * canceled and destroyed. Protected by cl_lock::cll_guard. - * - * \see cl_lock_hold(), cl_lock_unhold(), cl_lock_release() - */ - int cll_holds; - /** - * Number of lock users. Valid in cl_lock_state::CLS_HELD state - * only. Lock user pins lock in CLS_HELD state. Protected by - * cl_lock::cll_guard. - * - * \see cl_wait(), cl_unuse(). - */ - int cll_users; - /** - * Flag bit-mask. Values from enum cl_lock_flags. Updates are - * protected by cl_lock::cll_guard. - */ - unsigned long cll_flags; - /** - * A linkage into a list of locks in a closure. - * - * \see cl_lock_closure - */ - struct list_head cll_inclosure; - /** - * Confict lock at queuing time. - */ - struct cl_lock *cll_conflict; - /** - * A list of references to this lock, for debugging. - */ - struct lu_ref cll_reference; - /** - * A list of holds on this lock, for debugging. - */ - struct lu_ref cll_holders; - /** - * A reference for cl_lock::cll_descr::cld_obj. For debugging. - */ - struct lu_ref_link cll_obj_ref; -#ifdef CONFIG_LOCKDEP - /* "dep_map" name is assumed by lockdep.h macros. */ - struct lockdep_map dep_map; -#endif }; /** @@ -1622,170 +1330,32 @@ struct cl_lock_slice { }; /** - * Possible (non-error) return values of ->clo_{enqueue,wait,unlock}(). - * - * NOTE: lov_subresult() depends on ordering here. - */ -enum cl_lock_transition { - /** operation cannot be completed immediately. Wait for state change. */ - CLO_WAIT = 1, - /** operation had to release lock mutex, restart. */ - CLO_REPEAT = 2, - /** lower layer re-enqueued. */ - CLO_REENQUEUED = 3, -}; - -/** * * \see vvp_lock_ops, lov_lock_ops, lovsub_lock_ops, osc_lock_ops */ struct cl_lock_operations { - /** - * \name statemachine - * - * State machine transitions. These 3 methods are called to transfer - * lock from one state to another, as described in the commentary - * above enum #cl_lock_state. - * - * \retval 0 this layer has nothing more to do to before - * transition to the target state happens; - * - * \retval CLO_REPEAT method had to release and re-acquire cl_lock - * mutex, repeat invocation of transition method - * across all layers; - * - * \retval CLO_WAIT this layer cannot move to the target state - * immediately, as it has to wait for certain event - * (e.g., the communication with the server). It - * is guaranteed, that when the state transfer - * becomes possible, cl_lock::cll_wq wait-queue - * is signaled. Caller can wait for this event by - * calling cl_lock_state_wait(); - * - * \retval -ve failure, abort state transition, move the lock - * into cl_lock_state::CLS_FREEING state, and set - * cl_lock::cll_error. - * - * Once all layers voted to agree to transition (by returning 0), lock - * is moved into corresponding target state. All state transition - * methods are optional. - */ /** @{ */ /** * Attempts to enqueue the lock. Called top-to-bottom. * + * \retval 0 this layer has enqueued the lock successfully + * \retval >0 this layer has enqueued the lock, but need to wait on + * @anchor for resources + * \retval -ve failure + * * \see ccc_lock_enqueue(), lov_lock_enqueue(), lovsub_lock_enqueue(), * \see osc_lock_enqueue() */ int (*clo_enqueue)(const struct lu_env *env, const struct cl_lock_slice *slice, - struct cl_io *io, __u32 enqflags); - /** - * Attempts to wait for enqueue result. Called top-to-bottom. - * - * \see ccc_lock_wait(), lov_lock_wait(), osc_lock_wait() - */ - int (*clo_wait)(const struct lu_env *env, - const struct cl_lock_slice *slice); - /** - * Attempts to unlock the lock. Called bottom-to-top. In addition to - * usual return values of lock state-machine methods, this can return - * -ESTALE to indicate that lock cannot be returned to the cache, and - * has to be re-initialized. - * unuse is a one-shot operation, so it must NOT return CLO_WAIT. - * - * \see ccc_lock_unuse(), lov_lock_unuse(), osc_lock_unuse() - */ - int (*clo_unuse)(const struct lu_env *env, - const struct cl_lock_slice *slice); - /** - * Notifies layer that cached lock is started being used. - * - * \pre lock->cll_state == CLS_CACHED - * - * \see lov_lock_use(), osc_lock_use() - */ - int (*clo_use)(const struct lu_env *env, - const struct cl_lock_slice *slice); - /** @} statemachine */ - /** - * A method invoked when lock state is changed (as a result of state - * transition). This is used, for example, to track when the state of - * a sub-lock changes, to propagate this change to the corresponding - * top-lock. Optional - * - * \see lovsub_lock_state() - */ - void (*clo_state)(const struct lu_env *env, - const struct cl_lock_slice *slice, - enum cl_lock_state st); - /** - * Returns true, iff given lock is suitable for the given io, idea - * being, that there are certain "unsafe" locks, e.g., ones acquired - * for O_APPEND writes, that we don't want to re-use for a normal - * write, to avoid the danger of cascading evictions. Optional. Runs - * under cl_object_header::coh_lock_guard. - * - * XXX this should take more information about lock needed by - * io. Probably lock description or something similar. - * - * \see lov_fits_into() - */ - int (*clo_fits_into)(const struct lu_env *env, - const struct cl_lock_slice *slice, - const struct cl_lock_descr *need, - const struct cl_io *io); - /** - * \name ast - * Asynchronous System Traps. All of then are optional, all are - * executed bottom-to-top. - */ - /** @{ */ - + struct cl_io *io, struct cl_sync_io *anchor); /** - * Cancellation callback. Cancel a lock voluntarily, or under - * the request of server. + * Cancel a lock, release its DLM lock ref, while does not cancel the + * DLM lock */ void (*clo_cancel)(const struct lu_env *env, const struct cl_lock_slice *slice); - /** - * Lock weighting ast. Executed to estimate how precious this lock - * is. The sum of results across all layers is used to determine - * whether lock worth keeping in cache given present memory usage. - * - * \see osc_lock_weigh(), vvp_lock_weigh(), lovsub_lock_weigh(). - */ - unsigned long (*clo_weigh)(const struct lu_env *env, - const struct cl_lock_slice *slice); - /** @} ast */ - - /** - * \see lovsub_lock_closure() - */ - int (*clo_closure)(const struct lu_env *env, - const struct cl_lock_slice *slice, - struct cl_lock_closure *closure); - /** - * Executed bottom-to-top when lock description changes (e.g., as a - * result of server granting more generous lock than was requested). - * - * \see lovsub_lock_modify() - */ - int (*clo_modify)(const struct lu_env *env, - const struct cl_lock_slice *slice, - const struct cl_lock_descr *updated); - /** - * Notifies layers (bottom-to-top) that lock is going to be - * destroyed. Responsibility of layers is to prevent new references on - * this lock from being acquired once this method returns. - * - * This can be called multiple times due to the races. - * - * \see cl_lock_delete() - * \see osc_lock_delete(), lovsub_lock_delete() - */ - void (*clo_delete)(const struct lu_env *env, - const struct cl_lock_slice *slice); + /** @} */ /** * Destructor. Frees resources and the slice. * @@ -2165,9 +1735,13 @@ enum cl_enq_flags { */ CEF_AGL = 0x00000020, /** + * enqueue a lock to test DLM lock existence. + */ + CEF_PEEK = 0x00000040, + /** * mask of enq_flags. */ - CEF_MASK = 0x0000003f, + CEF_MASK = 0x0000007f, }; /** @@ -2177,12 +1751,12 @@ enum cl_enq_flags { struct cl_io_lock_link { /** linkage into one of cl_lockset lists. */ struct list_head cill_linkage; - struct cl_lock_descr cill_descr; - struct cl_lock *cill_lock; + struct cl_lock cill_lock; /** optional destructor */ void (*cill_fini)(const struct lu_env *env, struct cl_io_lock_link *link); }; +#define cill_descr cill_lock.cll_descr /** * Lock-set represents a collection of locks, that io needs at a @@ -2216,8 +1790,6 @@ struct cl_io_lock_link { struct cl_lockset { /** locks to be acquired. */ struct list_head cls_todo; - /** locks currently being processed. */ - struct list_head cls_curr; /** locks acquired. */ struct list_head cls_done; }; @@ -2581,9 +2153,7 @@ struct cl_site { * and top-locks (and top-pages) are accounted here. */ struct cache_stats cs_pages; - struct cache_stats cs_locks; atomic_t cs_pages_state[CPS_NR]; - atomic_t cs_locks_state[CLS_NR]; }; int cl_site_init(struct cl_site *s, struct cl_device *top); @@ -2707,7 +2277,7 @@ int cl_object_glimpse(const struct lu_env *env, struct cl_object *obj, struct ost_lvb *lvb); int cl_conf_set(const struct lu_env *env, struct cl_object *obj, const struct cl_object_conf *conf); -void cl_object_prune(const struct lu_env *env, struct cl_object *obj); +int cl_object_prune(const struct lu_env *env, struct cl_object *obj); void cl_object_kill(const struct lu_env *env, struct cl_object *obj); /** @@ -2845,121 +2415,17 @@ void cl_lock_descr_print(const struct lu_env *env, void *cookie, * @{ */ -struct cl_lock *cl_lock_hold(const struct lu_env *env, const struct cl_io *io, - const struct cl_lock_descr *need, - const char *scope, const void *source); -struct cl_lock *cl_lock_peek(const struct lu_env *env, const struct cl_io *io, - const struct cl_lock_descr *need, - const char *scope, const void *source); -struct cl_lock *cl_lock_request(const struct lu_env *env, struct cl_io *io, - const struct cl_lock_descr *need, - const char *scope, const void *source); -struct cl_lock *cl_lock_at_pgoff(const struct lu_env *env, - struct cl_object *obj, pgoff_t index, - struct cl_lock *except, int pending, - int canceld); +int cl_lock_request(const struct lu_env *env, struct cl_io *io, + struct cl_lock *lock); +int cl_lock_init(const struct lu_env *env, struct cl_lock *lock, + const struct cl_io *io); +void cl_lock_fini(const struct lu_env *env, struct cl_lock *lock); const struct cl_lock_slice *cl_lock_at(const struct cl_lock *lock, const struct lu_device_type *dtype); - -void cl_lock_get(struct cl_lock *lock); -void cl_lock_get_trust(struct cl_lock *lock); -void cl_lock_put(const struct lu_env *env, struct cl_lock *lock); -void cl_lock_hold_add(const struct lu_env *env, struct cl_lock *lock, - const char *scope, const void *source); -void cl_lock_hold_release(const struct lu_env *env, struct cl_lock *lock, - const char *scope, const void *source); -void cl_lock_unhold(const struct lu_env *env, struct cl_lock *lock, - const char *scope, const void *source); -void cl_lock_release(const struct lu_env *env, struct cl_lock *lock, - const char *scope, const void *source); -void cl_lock_user_add(const struct lu_env *env, struct cl_lock *lock); -void cl_lock_user_del(const struct lu_env *env, struct cl_lock *lock); - -int cl_lock_is_intransit(struct cl_lock *lock); - -int cl_lock_enqueue_wait(const struct lu_env *env, struct cl_lock *lock, - int keep_mutex); - -/** \name statemachine statemachine - * Interface to lock state machine consists of 3 parts: - * - * - "try" functions that attempt to effect a state transition. If state - * transition is not possible right now (e.g., if it has to wait for some - * asynchronous event to occur), these functions return - * cl_lock_transition::CLO_WAIT. - * - * - "non-try" functions that implement synchronous blocking interface on - * top of non-blocking "try" functions. These functions repeatedly call - * corresponding "try" versions, and if state transition is not possible - * immediately, wait for lock state change. - * - * - methods from cl_lock_operations, called by "try" functions. Lock can - * be advanced to the target state only when all layers voted that they - * are ready for this transition. "Try" functions call methods under lock - * mutex. If a layer had to release a mutex, it re-acquires it and returns - * cl_lock_transition::CLO_REPEAT, causing "try" function to call all - * layers again. - * - * TRY NON-TRY METHOD FINAL STATE - * - * cl_enqueue_try() cl_enqueue() cl_lock_operations::clo_enqueue() CLS_ENQUEUED - * - * cl_wait_try() cl_wait() cl_lock_operations::clo_wait() CLS_HELD - * - * cl_unuse_try() cl_unuse() cl_lock_operations::clo_unuse() CLS_CACHED - * - * cl_use_try() NONE cl_lock_operations::clo_use() CLS_HELD - * - * @{ - */ - -int cl_wait(const struct lu_env *env, struct cl_lock *lock); -void cl_unuse(const struct lu_env *env, struct cl_lock *lock); -int cl_enqueue_try(const struct lu_env *env, struct cl_lock *lock, - struct cl_io *io, __u32 flags); -int cl_unuse_try(const struct lu_env *env, struct cl_lock *lock); -int cl_wait_try(const struct lu_env *env, struct cl_lock *lock); -int cl_use_try(const struct lu_env *env, struct cl_lock *lock, int atomic); - -/** @} statemachine */ - -void cl_lock_signal(const struct lu_env *env, struct cl_lock *lock); -int cl_lock_state_wait(const struct lu_env *env, struct cl_lock *lock); -void cl_lock_state_set(const struct lu_env *env, struct cl_lock *lock, - enum cl_lock_state state); -int cl_queue_match(const struct list_head *queue, - const struct cl_lock_descr *need); - -void cl_lock_mutex_get(const struct lu_env *env, struct cl_lock *lock); -void cl_lock_mutex_put(const struct lu_env *env, struct cl_lock *lock); -int cl_lock_is_mutexed(struct cl_lock *lock); -int cl_lock_nr_mutexed(const struct lu_env *env); -int cl_lock_discard_pages(const struct lu_env *env, struct cl_lock *lock); -int cl_lock_ext_match(const struct cl_lock_descr *has, - const struct cl_lock_descr *need); -int cl_lock_descr_match(const struct cl_lock_descr *has, - const struct cl_lock_descr *need); -int cl_lock_mode_match(enum cl_lock_mode has, enum cl_lock_mode need); -int cl_lock_modify(const struct lu_env *env, struct cl_lock *lock, - const struct cl_lock_descr *desc); - -void cl_lock_closure_init(const struct lu_env *env, - struct cl_lock_closure *closure, - struct cl_lock *origin, int wait); -void cl_lock_closure_fini(struct cl_lock_closure *closure); -int cl_lock_closure_build(const struct lu_env *env, struct cl_lock *lock, - struct cl_lock_closure *closure); -void cl_lock_disclosure(const struct lu_env *env, - struct cl_lock_closure *closure); -int cl_lock_enclosure(const struct lu_env *env, struct cl_lock *lock, - struct cl_lock_closure *closure); - +void cl_lock_release(const struct lu_env *env, struct cl_lock *lock); +int cl_lock_enqueue(const struct lu_env *env, struct cl_io *io, + struct cl_lock *lock, struct cl_sync_io *anchor); void cl_lock_cancel(const struct lu_env *env, struct cl_lock *lock); -void cl_lock_delete(const struct lu_env *env, struct cl_lock *lock); -void cl_lock_error(const struct lu_env *env, struct cl_lock *lock, int error); -void cl_locks_prune(const struct lu_env *env, struct cl_object *obj, int wait); - -unsigned long cl_lock_weigh(const struct lu_env *env, struct cl_lock *lock); /** @} cl_lock */ diff --git a/drivers/staging/lustre/lustre/include/lclient.h b/drivers/staging/lustre/lustre/include/lclient.h index a8c8788..82af8ae 100644 --- a/drivers/staging/lustre/lustre/include/lclient.h +++ b/drivers/staging/lustre/lustre/include/lclient.h @@ -99,10 +99,6 @@ struct ccc_io { } write; } u; /** - * True iff io is processing glimpse right now. - */ - int cui_glimpse; - /** * Layout version when this IO is initialized */ __u32 cui_layout_gen; @@ -123,6 +119,7 @@ extern struct lu_context_key ccc_key; extern struct lu_context_key ccc_session_key; struct ccc_thread_info { + struct cl_lock cti_lock; struct cl_lock_descr cti_descr; struct cl_io cti_io; struct cl_attr cti_attr; @@ -137,6 +134,14 @@ static inline struct ccc_thread_info *ccc_env_info(const struct lu_env *env) return info; } +static inline struct cl_lock *ccc_env_lock(const struct lu_env *env) +{ + struct cl_lock *lock = &ccc_env_info(env)->cti_lock; + + memset(lock, 0, sizeof(*lock)); + return lock; +} + static inline struct cl_attr *ccc_env_thread_attr(const struct lu_env *env) { struct cl_attr *attr = &ccc_env_info(env)->cti_attr; @@ -308,18 +313,7 @@ void ccc_lock_delete(const struct lu_env *env, void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice); int ccc_lock_enqueue(const struct lu_env *env, const struct cl_lock_slice *slice, - struct cl_io *io, __u32 enqflags); -int ccc_lock_use(const struct lu_env *env, const struct cl_lock_slice *slice); -int ccc_lock_unuse(const struct lu_env *env, const struct cl_lock_slice *slice); -int ccc_lock_wait(const struct lu_env *env, const struct cl_lock_slice *slice); -int ccc_lock_fits_into(const struct lu_env *env, - const struct cl_lock_slice *slice, - const struct cl_lock_descr *need, - const struct cl_io *io); -void ccc_lock_state(const struct lu_env *env, - const struct cl_lock_slice *slice, - enum cl_lock_state state); - + struct cl_io *io, struct cl_sync_io *anchor); int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io, __u32 enqflags, enum cl_lock_mode mode, pgoff_t start, pgoff_t end); diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h index da8bc6e..4318511 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h @@ -2582,6 +2582,8 @@ struct ldlm_extent { __u64 gid; }; +#define LDLM_GID_ANY ((__u64)-1) + static inline int ldlm_extent_overlap(struct ldlm_extent *ex1, struct ldlm_extent *ex2) { diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h index 8b0364f..b1abdc2 100644 --- a/drivers/staging/lustre/lustre/include/lustre_dlm.h +++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h @@ -71,6 +71,7 @@ struct obd_device; */ enum ldlm_error { ELDLM_OK = 0, + ELDLM_LOCK_MATCHED = 1, ELDLM_LOCK_CHANGED = 300, ELDLM_LOCK_ABORTED = 301, diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c index b497ce4..7fedbec 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c @@ -748,6 +748,7 @@ int ldlm_error2errno(enum ldlm_error error) switch (error) { case ELDLM_OK: + case ELDLM_LOCK_MATCHED: result = 0; break; case ELDLM_LOCK_CHANGED: diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c index ecd65a7..27a051b 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c @@ -657,7 +657,7 @@ void ldlm_lock_addref(struct lustre_handle *lockh, __u32 mode) struct ldlm_lock *lock; lock = ldlm_handle2lock(lockh); - LASSERT(lock); + LASSERTF(lock, "Non-existing lock: %llx\n", lockh->cookie); ldlm_lock_addref_internal(lock, mode); LDLM_LOCK_PUT(lock); } @@ -1092,6 +1092,7 @@ static struct ldlm_lock *search_queue(struct list_head *queue, if (unlikely(match == LCK_GROUP) && lock->l_resource->lr_type == LDLM_EXTENT && + policy->l_extent.gid != LDLM_GID_ANY && lock->l_policy_data.l_extent.gid != policy->l_extent.gid) continue; diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index d5968e0..42925ac 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -347,7 +347,6 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req, struct ldlm_lock *lock; struct ldlm_reply *reply; int cleanup_phase = 1; - int size = 0; lock = ldlm_handle2lock(lockh); /* ldlm_cli_enqueue is holding a reference on this lock. */ @@ -375,8 +374,8 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req, goto cleanup; } - if (lvb_len != 0) { - LASSERT(lvb); + if (lvb_len > 0) { + int size = 0; size = req_capsule_get_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER); @@ -390,12 +389,13 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req, rc = -EINVAL; goto cleanup; } + lvb_len = size; } if (rc == ELDLM_LOCK_ABORTED) { - if (lvb_len != 0) + if (lvb_len > 0 && lvb) rc = ldlm_fill_lvb(lock, &req->rq_pill, RCL_SERVER, - lvb, size); + lvb, lvb_len); if (rc == 0) rc = ELDLM_LOCK_ABORTED; goto cleanup; @@ -489,7 +489,7 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req, /* If the lock has already been granted by a completion AST, don't * clobber the LVB with an older one. */ - if (lvb_len != 0) { + if (lvb_len > 0) { /* We must lock or a racing completion might update lvb without * letting us know and we'll clobber the correct value. * Cannot unlock after the check either, as that still leaves @@ -498,7 +498,7 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req, lock_res_and_lock(lock); if (lock->l_req_mode != lock->l_granted_mode) rc = ldlm_fill_lvb(lock, &req->rq_pill, RCL_SERVER, - lock->l_lvb_data, size); + lock->l_lvb_data, lvb_len); unlock_res_and_lock(lock); if (rc < 0) { cleanup_phase = 1; @@ -518,7 +518,7 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req, } } - if (lvb_len && lvb) { + if (lvb_len > 0 && lvb) { /* Copy the LVB here, and not earlier, because the completion * AST (if any) can override what we got in the reply */ diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c index 9dede87..242a664 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c @@ -1400,3 +1400,4 @@ void ldlm_resource_dump(int level, struct ldlm_resource *res) LDLM_DEBUG_LIMIT(level, lock, "###"); } } +EXPORT_SYMBOL(ldlm_resource_dump); diff --git a/drivers/staging/lustre/lustre/llite/glimpse.c b/drivers/staging/lustre/lustre/llite/glimpse.c index 9b0e2ec..0759dfc 100644 --- a/drivers/staging/lustre/lustre/llite/glimpse.c +++ b/drivers/staging/lustre/lustre/llite/glimpse.c @@ -86,17 +86,17 @@ blkcnt_t dirty_cnt(struct inode *inode) int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, struct inode *inode, struct cl_object *clob, int agl) { - struct cl_lock_descr *descr = &ccc_env_info(env)->cti_descr; struct ll_inode_info *lli = ll_i2info(inode); const struct lu_fid *fid = lu_object_fid(&clob->co_lu); - struct ccc_io *cio = ccc_env_io(env); - struct cl_lock *lock; int result; result = 0; if (!(lli->lli_flags & LLIF_MDS_SIZE_LOCK)) { CDEBUG(D_DLMTRACE, "Glimpsing inode " DFID "\n", PFID(fid)); if (lli->lli_has_smd) { + struct cl_lock *lock = ccc_env_lock(env); + struct cl_lock_descr *descr = &lock->cll_descr; + /* NOTE: this looks like DLM lock request, but it may * not be one. Due to CEF_ASYNC flag (translated * to LDLM_FL_HAS_INTENT by osc), this is @@ -113,11 +113,10 @@ int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, */ *descr = whole_file; descr->cld_obj = clob; - descr->cld_mode = CLM_PHANTOM; + descr->cld_mode = CLM_READ; descr->cld_enq_flags = CEF_ASYNC | CEF_MUST; if (agl) descr->cld_enq_flags |= CEF_AGL; - cio->cui_glimpse = 1; /* * CEF_ASYNC is used because glimpse sub-locks cannot * deadlock (because they never conflict with other @@ -126,19 +125,11 @@ int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, * CEF_MUST protects glimpse lock from conversion into * a lockless mode. */ - lock = cl_lock_request(env, io, descr, "glimpse", - current); - cio->cui_glimpse = 0; - - if (!lock) - return 0; + result = cl_lock_request(env, io, lock); + if (result < 0) + return result; - if (IS_ERR(lock)) - return PTR_ERR(lock); - - LASSERT(agl == 0); - result = cl_wait(env, lock); - if (result == 0) { + if (!agl) { ll_merge_attr(env, inode); if (i_size_read(inode) > 0 && inode->i_blocks == 0) { @@ -150,9 +141,8 @@ int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, */ inode->i_blocks = dirty_cnt(inode); } - cl_unuse(env, lock); } - cl_lock_release(env, lock, "glimpse", current); + cl_lock_release(env, lock); } else { CDEBUG(D_DLMTRACE, "No objects for inode\n"); ll_merge_attr(env, inode); @@ -233,10 +223,7 @@ int cl_local_size(struct inode *inode) { struct lu_env *env = NULL; struct cl_io *io = NULL; - struct ccc_thread_info *cti; struct cl_object *clob; - struct cl_lock_descr *descr; - struct cl_lock *lock; int result; int refcheck; @@ -252,19 +239,15 @@ int cl_local_size(struct inode *inode) if (result > 0) { result = io->ci_result; } else if (result == 0) { - cti = ccc_env_info(env); - descr = &cti->cti_descr; + struct cl_lock *lock = ccc_env_lock(env); - *descr = whole_file; - descr->cld_obj = clob; - lock = cl_lock_peek(env, io, descr, "localsize", current); - if (lock) { + lock->cll_descr = whole_file; + lock->cll_descr.cld_enq_flags = CEF_PEEK; + lock->cll_descr.cld_obj = clob; + result = cl_lock_request(env, io, lock); + if (result == 0) { ll_merge_attr(env, inode); - cl_unuse(env, lock); - cl_lock_release(env, lock, "localsize", current); - result = 0; - } else { - result = -ENODATA; + cl_lock_release(env, lock); } } cl_io_fini(env, io); diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index fde96d3..b339d1b 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -475,12 +475,6 @@ int ccc_transient_page_prep(const struct lu_env *env, * */ -void ccc_lock_delete(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); -} - void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice) { struct ccc_lock *clk = cl2ccc_lock(slice); @@ -490,111 +484,12 @@ void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice) int ccc_lock_enqueue(const struct lu_env *env, const struct cl_lock_slice *slice, - struct cl_io *unused, __u32 enqflags) -{ - CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); - return 0; -} - -int ccc_lock_use(const struct lu_env *env, const struct cl_lock_slice *slice) -{ - CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); - return 0; -} - -int ccc_lock_unuse(const struct lu_env *env, const struct cl_lock_slice *slice) + struct cl_io *unused, struct cl_sync_io *anchor) { CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); return 0; } -int ccc_lock_wait(const struct lu_env *env, const struct cl_lock_slice *slice) -{ - CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); - return 0; -} - -/** - * Implementation of cl_lock_operations::clo_fits_into() methods for ccc - * layer. This function is executed every time io finds an existing lock in - * the lock cache while creating new lock. This function has to decide whether - * cached lock "fits" into io. - * - * \param slice lock to be checked - * \param io IO that wants a lock. - * - * \see lov_lock_fits_into(). - */ -int ccc_lock_fits_into(const struct lu_env *env, - const struct cl_lock_slice *slice, - const struct cl_lock_descr *need, - const struct cl_io *io) -{ - const struct cl_lock *lock = slice->cls_lock; - const struct cl_lock_descr *descr = &lock->cll_descr; - const struct ccc_io *cio = ccc_env_io(env); - int result; - - /* - * Work around DLM peculiarity: it assumes that glimpse - * (LDLM_FL_HAS_INTENT) lock is always LCK_PR, and returns reads lock - * when asked for LCK_PW lock with LDLM_FL_HAS_INTENT flag set. Make - * sure that glimpse doesn't get CLM_WRITE top-lock, so that it - * doesn't enqueue CLM_WRITE sub-locks. - */ - if (cio->cui_glimpse) - result = descr->cld_mode != CLM_WRITE; - - /* - * Also, don't match incomplete write locks for read, otherwise read - * would enqueue missing sub-locks in the write mode. - */ - else if (need->cld_mode != descr->cld_mode) - result = lock->cll_state >= CLS_ENQUEUED; - else - result = 1; - return result; -} - -/** - * Implements cl_lock_operations::clo_state() method for ccc layer, invoked - * whenever lock state changes. Transfers object attributes, that might be - * updated as a result of lock acquiring into inode. - */ -void ccc_lock_state(const struct lu_env *env, - const struct cl_lock_slice *slice, - enum cl_lock_state state) -{ - struct cl_lock *lock = slice->cls_lock; - - /* - * Refresh inode attributes when the lock is moving into CLS_HELD - * state, and only when this is a result of real enqueue, rather than - * of finding lock in the cache. - */ - if (state == CLS_HELD && lock->cll_state < CLS_HELD) { - struct cl_object *obj; - struct inode *inode; - - obj = slice->cls_obj; - inode = ccc_object_inode(obj); - - /* vmtruncate() sets the i_size - * under both a DLM lock and the - * ll_inode_size_lock(). If we don't get the - * ll_inode_size_lock() here we can match the DLM lock and - * reset i_size. generic_file_write can then trust the - * stale i_size when doing appending writes and effectively - * cancel the result of the truncate. Getting the - * ll_inode_size_lock() after the enqueue maintains the DLM - * -> ll_inode_size_lock() acquiring order. - */ - if (lock->cll_descr.cld_start == 0 && - lock->cll_descr.cld_end == CL_PAGE_EOF) - ll_merge_attr(env, inode); - } -} - /***************************************************************************** * * io operations. diff --git a/drivers/staging/lustre/lustre/llite/lcommon_misc.c b/drivers/staging/lustre/lustre/llite/lcommon_misc.c index f68c368..4c12e21 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_misc.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_misc.c @@ -145,7 +145,7 @@ int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, io->ci_ignore_layout = 1; rc = cl_io_init(env, io, CIT_MISC, io->ci_obj); - if (rc) { + if (rc != 0) { cl_io_fini(env, io); cl_env_put(env, &refcheck); /* Does not make sense to take GL for released layout */ @@ -154,7 +154,8 @@ int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, return rc; } - descr = &ccc_env_info(env)->cti_descr; + lock = ccc_env_lock(env); + descr = &lock->cll_descr; descr->cld_obj = obj; descr->cld_start = 0; descr->cld_end = CL_PAGE_EOF; @@ -164,11 +165,11 @@ int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, enqflags = CEF_MUST | (nonblock ? CEF_NONBLOCK : 0); descr->cld_enq_flags = enqflags; - lock = cl_lock_request(env, io, descr, GROUPLOCK_SCOPE, current); - if (IS_ERR(lock)) { + rc = cl_lock_request(env, io, lock); + if (rc < 0) { cl_io_fini(env, io); cl_env_put(env, &refcheck); - return PTR_ERR(lock); + return rc; } cg->cg_env = cl_env_get(&refcheck); @@ -194,8 +195,7 @@ void cl_put_grouplock(struct ccc_grouplock *cg) cl_env_implant(env, &refcheck); cl_env_put(env, &refcheck); - cl_unuse(env, lock); - cl_lock_release(env, lock, GROUPLOCK_SCOPE, current); + cl_lock_release(env, lock); cl_io_fini(env, io); cl_env_put(env, NULL); } diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index e2fea8c..50d8289 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -150,8 +150,7 @@ static int ll_releasepage(struct page *vmpage, gfp_t gfp_mask) * If this page holds the last refc of cl_object, the following * call path may cause reschedule: * cl_page_put -> cl_page_free -> cl_object_put -> - * lu_object_put -> lu_object_free -> lov_delete_raid0 -> - * cl_locks_prune. + * lu_object_put -> lu_object_free -> lov_delete_raid0. * * However, the kernel can't get rid of this inode until all pages have * been cleaned up. Now that we hold page lock here, it's pretty safe diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index c7db318..fb6f932 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -233,7 +233,7 @@ static int vvp_mmap_locks(const struct lu_env *env, ldlm_policy_data_t policy; unsigned long addr; ssize_t count; - int result; + int result = 0; struct iov_iter i; struct iovec iov; @@ -265,10 +265,10 @@ static int vvp_mmap_locks(const struct lu_env *env, if (ll_file_nolock(vma->vm_file)) { /* - * For no lock case, a lockless lock will be - * generated. + * For no lock case is not allowed for mmap */ - flags = CEF_NEVER; + result = -EINVAL; + break; } /* @@ -290,10 +290,8 @@ static int vvp_mmap_locks(const struct lu_env *env, descr->cld_mode, descr->cld_start, descr->cld_end); - if (result < 0) { - up_read(&mm->mmap_sem); - return result; - } + if (result < 0) + break; if (vma->vm_end - addr >= count) break; @@ -302,8 +300,10 @@ static int vvp_mmap_locks(const struct lu_env *env, addr = vma->vm_end; } up_read(&mm->mmap_sem); + if (result < 0) + break; } - return 0; + return result; } static int vvp_io_rw_lock(const struct lu_env *env, struct cl_io *io, @@ -781,6 +781,7 @@ static int vvp_io_write_start(const struct lu_env *env, * PARALLEL IO This has to be changed for parallel IO doing * out-of-order writes. */ + ll_merge_attr(env, inode); pos = io->u.ci_wr.wr.crw_pos = i_size_read(inode); cio->cui_iocb->ki_pos = pos; } else { diff --git a/drivers/staging/lustre/lustre/llite/vvp_lock.c b/drivers/staging/lustre/lustre/llite/vvp_lock.c index ff09480..8c505a6 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_lock.c +++ b/drivers/staging/lustre/lustre/llite/vvp_lock.c @@ -51,32 +51,9 @@ * */ -/** - * Estimates lock value for the purpose of managing the lock cache during - * memory shortages. - * - * Locks for memory mapped files are almost infinitely precious, others are - * junk. "Mapped locks" are heavy, but not infinitely heavy, so that they are - * ordered within themselves by weights assigned from other layers. - */ -static unsigned long vvp_lock_weigh(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct ccc_object *cob = cl2ccc(slice->cls_obj); - - return atomic_read(&cob->cob_mmap_cnt) > 0 ? ~0UL >> 2 : 0; -} - static const struct cl_lock_operations vvp_lock_ops = { - .clo_delete = ccc_lock_delete, .clo_fini = ccc_lock_fini, - .clo_enqueue = ccc_lock_enqueue, - .clo_wait = ccc_lock_wait, - .clo_use = ccc_lock_use, - .clo_unuse = ccc_lock_unuse, - .clo_fits_into = ccc_lock_fits_into, - .clo_state = ccc_lock_state, - .clo_weigh = vvp_lock_weigh + .clo_enqueue = ccc_lock_enqueue }; int vvp_lock_init(const struct lu_env *env, struct cl_object *obj, diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c index d03eb2b..34210db 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_object.c +++ b/drivers/staging/lustre/lustre/llite/vvp_object.c @@ -170,11 +170,15 @@ static int vvp_prune(const struct lu_env *env, struct cl_object *obj) struct inode *inode = ccc_object_inode(obj); int rc; - rc = cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, CL_FSYNC_ALL, 1); - if (rc == 0) - truncate_inode_pages(inode->i_mapping, 0); + rc = cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, CL_FSYNC_LOCAL, 1); + if (rc < 0) { + CDEBUG(D_VFSTRACE, DFID ": writeback failed: %d\n", + PFID(lu_object_fid(&obj->co_lu)), rc); + return rc; + } - return rc; + truncate_inode_pages(inode->i_mapping, 0); + return 0; } static const struct cl_object_operations vvp_ops = { diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h index 9b3d13b..dfe41a8 100644 --- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h @@ -281,24 +281,17 @@ struct lov_object { }; /** - * Flags that top-lock can set on each of its sub-locks. - */ -enum lov_sub_flags { - /** Top-lock acquired a hold (cl_lock_hold()) on a sub-lock. */ - LSF_HELD = 1 << 0 -}; - -/** * State lov_lock keeps for each sub-lock. */ struct lov_lock_sub { /** sub-lock itself */ - struct lovsub_lock *sub_lock; - /** An array of per-sub-lock flags, taken from enum lov_sub_flags */ - unsigned sub_flags; + struct cl_lock sub_lock; + /** Set if the sublock has ever been enqueued, meaning it may + * hold resources of underlying layers + */ + unsigned int sub_is_enqueued:1, + sub_initialized:1; int sub_stripe; - struct cl_lock_descr sub_descr; - struct cl_lock_descr sub_got; }; /** @@ -308,59 +301,8 @@ struct lov_lock { struct cl_lock_slice lls_cl; /** Number of sub-locks in this lock */ int lls_nr; - /** - * Number of existing sub-locks. - */ - unsigned lls_nr_filled; - /** - * Set when sub-lock was canceled, while top-lock was being - * used, or unused. - */ - unsigned int lls_cancel_race:1; - /** - * An array of sub-locks - * - * There are two issues with managing sub-locks: - * - * - sub-locks are concurrently canceled, and - * - * - sub-locks are shared with other top-locks. - * - * To manage cancellation, top-lock acquires a hold on a sublock - * (lov_sublock_adopt()) when the latter is inserted into - * lov_lock::lls_sub[]. This hold is released (lov_sublock_release()) - * when top-lock is going into CLS_CACHED state or destroyed. Hold - * prevents sub-lock from cancellation. - * - * Sub-lock sharing means, among other things, that top-lock that is - * in the process of creation (i.e., not yet inserted into lock list) - * is already accessible to other threads once at least one of its - * sub-locks is created, see lov_lock_sub_init(). - * - * Sub-lock can be in one of the following states: - * - * - doesn't exist, lov_lock::lls_sub[]::sub_lock == NULL. Such - * sub-lock was either never created (top-lock is in CLS_NEW - * state), or it was created, then canceled, then destroyed - * (lov_lock_unlink() cleared sub-lock pointer in the top-lock). - * - * - sub-lock exists and is on - * hold. (lov_lock::lls_sub[]::sub_flags & LSF_HELD). This is a - * normal state of a sub-lock in CLS_HELD and CLS_CACHED states - * of a top-lock. - * - * - sub-lock exists, but is not held by the top-lock. This - * happens after top-lock released a hold on sub-locks before - * going into cache (lov_lock_unuse()). - * - * \todo To support wide-striping, array has to be replaced with a set - * of queues to avoid scanning. - */ - struct lov_lock_sub *lls_sub; - /** - * Original description with which lock was enqueued. - */ - struct cl_lock_descr lls_orig; + /** sublock array */ + struct lov_lock_sub lls_sub[0]; }; struct lov_page { @@ -445,7 +387,6 @@ struct lov_thread_info { struct ost_lvb lti_lvb; struct cl_2queue lti_cl2q; struct cl_page_list lti_plist; - struct cl_lock_closure lti_closure; wait_queue_t lti_waiter; struct cl_attr lti_attr; }; diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c index 532ef87..dccc634 100644 --- a/drivers/staging/lustre/lustre/lov/lov_dev.c +++ b/drivers/staging/lustre/lustre/lov/lov_dev.c @@ -143,9 +143,7 @@ static void *lov_key_init(const struct lu_context *ctx, struct lov_thread_info *info; info = kmem_cache_zalloc(lov_thread_kmem, GFP_NOFS); - if (info) - INIT_LIST_HEAD(&info->lti_closure.clc_list); - else + if (!info) info = ERR_PTR(-ENOMEM); return info; } @@ -155,7 +153,6 @@ static void lov_key_fini(const struct lu_context *ctx, { struct lov_thread_info *info = data; - LINVRNT(list_empty(&info->lti_closure.clc_list)); kmem_cache_free(lov_thread_kmem, info); } diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c index ae854bc..1b203d1 100644 --- a/drivers/staging/lustre/lustre/lov/lov_lock.c +++ b/drivers/staging/lustre/lustre/lov/lov_lock.c @@ -46,11 +46,6 @@ * @{ */ -static struct cl_lock_closure *lov_closure_get(const struct lu_env *env, - struct cl_lock *parent); - -static int lov_lock_unuse(const struct lu_env *env, - const struct cl_lock_slice *slice); /***************************************************************************** * * Lov lock operations. @@ -58,7 +53,7 @@ static int lov_lock_unuse(const struct lu_env *env, */ static struct lov_sublock_env *lov_sublock_env_get(const struct lu_env *env, - struct cl_lock *parent, + const struct cl_lock *parent, struct lov_lock_sub *lls) { struct lov_sublock_env *subenv; @@ -100,185 +95,26 @@ static void lov_sublock_env_put(struct lov_sublock_env *subenv) lov_sub_put(subenv->lse_sub); } -static void lov_sublock_adopt(const struct lu_env *env, struct lov_lock *lck, - struct cl_lock *sublock, int idx, - struct lov_lock_link *link) +static int lov_sublock_init(const struct lu_env *env, + const struct cl_lock *parent, + struct lov_lock_sub *lls) { - struct lovsub_lock *lsl; - struct cl_lock *parent = lck->lls_cl.cls_lock; - int rc; - - LASSERT(cl_lock_is_mutexed(parent)); - LASSERT(cl_lock_is_mutexed(sublock)); - - lsl = cl2sub_lock(sublock); - /* - * check that sub-lock doesn't have lock link to this top-lock. - */ - LASSERT(!lov_lock_link_find(env, lck, lsl)); - LASSERT(idx < lck->lls_nr); - - lck->lls_sub[idx].sub_lock = lsl; - lck->lls_nr_filled++; - LASSERT(lck->lls_nr_filled <= lck->lls_nr); - list_add_tail(&link->lll_list, &lsl->lss_parents); - link->lll_idx = idx; - link->lll_super = lck; - cl_lock_get(parent); - lu_ref_add(&parent->cll_reference, "lov-child", sublock); - lck->lls_sub[idx].sub_flags |= LSF_HELD; - cl_lock_user_add(env, sublock); - - rc = lov_sublock_modify(env, lck, lsl, &sublock->cll_descr, idx); - LASSERT(rc == 0); /* there is no way this can fail, currently */ -} - -static struct cl_lock *lov_sublock_alloc(const struct lu_env *env, - const struct cl_io *io, - struct lov_lock *lck, - int idx, struct lov_lock_link **out) -{ - struct cl_lock *sublock; - struct cl_lock *parent; - struct lov_lock_link *link; - - LASSERT(idx < lck->lls_nr); - - link = kmem_cache_zalloc(lov_lock_link_kmem, GFP_NOFS); - if (link) { - struct lov_sublock_env *subenv; - struct lov_lock_sub *lls; - struct cl_lock_descr *descr; - - parent = lck->lls_cl.cls_lock; - lls = &lck->lls_sub[idx]; - descr = &lls->sub_got; - - subenv = lov_sublock_env_get(env, parent, lls); - if (!IS_ERR(subenv)) { - /* CAVEAT: Don't try to add a field in lov_lock_sub - * to remember the subio. This is because lock is able - * to be cached, but this is not true for IO. This - * further means a sublock might be referenced in - * different io context. -jay - */ - - sublock = cl_lock_hold(subenv->lse_env, subenv->lse_io, - descr, "lov-parent", parent); - lov_sublock_env_put(subenv); - } else { - /* error occurs. */ - sublock = (void *)subenv; - } - - if (!IS_ERR(sublock)) - *out = link; - else - kmem_cache_free(lov_lock_link_kmem, link); - } else - sublock = ERR_PTR(-ENOMEM); - return sublock; -} - -static void lov_sublock_unlock(const struct lu_env *env, - struct lovsub_lock *lsl, - struct cl_lock_closure *closure, - struct lov_sublock_env *subenv) -{ - lov_sublock_env_put(subenv); - lsl->lss_active = NULL; - cl_lock_disclosure(env, closure); -} - -static int lov_sublock_lock(const struct lu_env *env, - struct lov_lock *lck, - struct lov_lock_sub *lls, - struct cl_lock_closure *closure, - struct lov_sublock_env **lsep) -{ - struct lovsub_lock *sublock; - struct cl_lock *child; - int result = 0; - - LASSERT(list_empty(&closure->clc_list)); - - sublock = lls->sub_lock; - child = sublock->lss_cl.cls_lock; - result = cl_lock_closure_build(env, child, closure); - if (result == 0) { - struct cl_lock *parent = closure->clc_origin; - - LASSERT(cl_lock_is_mutexed(child)); - sublock->lss_active = parent; - - if (unlikely((child->cll_state == CLS_FREEING) || - (child->cll_flags & CLF_CANCELLED))) { - struct lov_lock_link *link; - /* - * we could race with lock deletion which temporarily - * put the lock in freeing state, bug 19080. - */ - LASSERT(!(lls->sub_flags & LSF_HELD)); - - link = lov_lock_link_find(env, lck, sublock); - LASSERT(link); - lov_lock_unlink(env, link, sublock); - lov_sublock_unlock(env, sublock, closure, NULL); - lck->lls_cancel_race = 1; - result = CLO_REPEAT; - } else if (lsep) { - struct lov_sublock_env *subenv; + struct lov_sublock_env *subenv; + int result; - subenv = lov_sublock_env_get(env, parent, lls); - if (IS_ERR(subenv)) { - lov_sublock_unlock(env, sublock, - closure, NULL); - result = PTR_ERR(subenv); - } else { - *lsep = subenv; - } - } + subenv = lov_sublock_env_get(env, parent, lls); + if (!IS_ERR(subenv)) { + result = cl_lock_init(subenv->lse_env, &lls->sub_lock, + subenv->lse_io); + lov_sublock_env_put(subenv); + } else { + /* error occurs. */ + result = PTR_ERR(subenv); } return result; } /** - * Updates the result of a top-lock operation from a result of sub-lock - * sub-operations. Top-operations like lov_lock_{enqueue,use,unuse}() iterate - * over sub-locks and lov_subresult() is used to calculate return value of a - * top-operation. To this end, possible return values of sub-operations are - * ordered as - * - * - 0 success - * - CLO_WAIT wait for event - * - CLO_REPEAT repeat top-operation - * - -ne fundamental error - * - * Top-level return code can only go down through this list. CLO_REPEAT - * overwrites CLO_WAIT, because lock mutex was released and sleeping condition - * has to be rechecked by the upper layer. - */ -static int lov_subresult(int result, int rc) -{ - int result_rank; - int rc_rank; - - LASSERTF(result <= 0 || result == CLO_REPEAT || result == CLO_WAIT, - "result = %d\n", result); - LASSERTF(rc <= 0 || rc == CLO_REPEAT || rc == CLO_WAIT, - "rc = %d\n", rc); - CLASSERT(CLO_WAIT < CLO_REPEAT); - - /* calculate ranks in the ordering above */ - result_rank = result < 0 ? 1 + CLO_REPEAT : result; - rc_rank = rc < 0 ? 1 + CLO_REPEAT : rc; - - if (result_rank < rc_rank) - result = rc; - return result; -} - -/** * Creates sub-locks for a given lov_lock for the first time. * * Goes through all sub-objects of top-object, and creates sub-locks on every @@ -286,8 +122,9 @@ static int lov_subresult(int result, int rc) * fact that top-lock (that is being created) can be accessed concurrently * through already created sub-locks (possibly shared with other top-locks). */ -static int lov_lock_sub_init(const struct lu_env *env, - struct lov_lock *lck, const struct cl_io *io) +static struct lov_lock *lov_lock_sub_init(const struct lu_env *env, + const struct cl_object *obj, + struct cl_lock *lock) { int result = 0; int i; @@ -297,241 +134,86 @@ static int lov_lock_sub_init(const struct lu_env *env, u64 file_start; u64 file_end; - struct lov_object *loo = cl2lov(lck->lls_cl.cls_obj); + struct lov_object *loo = cl2lov(obj); struct lov_layout_raid0 *r0 = lov_r0(loo); - struct cl_lock *parent = lck->lls_cl.cls_lock; + struct lov_lock *lovlck; - lck->lls_orig = parent->cll_descr; - file_start = cl_offset(lov2cl(loo), parent->cll_descr.cld_start); - file_end = cl_offset(lov2cl(loo), parent->cll_descr.cld_end + 1) - 1; + file_start = cl_offset(lov2cl(loo), lock->cll_descr.cld_start); + file_end = cl_offset(lov2cl(loo), lock->cll_descr.cld_end + 1) - 1; for (i = 0, nr = 0; i < r0->lo_nr; i++) { /* * XXX for wide striping smarter algorithm is desirable, * breaking out of the loop, early. */ - if (likely(r0->lo_sub[i]) && + if (likely(r0->lo_sub[i]) && /* spare layout */ lov_stripe_intersects(loo->lo_lsm, i, file_start, file_end, &start, &end)) nr++; } LASSERT(nr > 0); - lck->lls_sub = libcfs_kvzalloc(nr * sizeof(lck->lls_sub[0]), GFP_NOFS); - if (!lck->lls_sub) - return -ENOMEM; + lovlck = libcfs_kvzalloc(offsetof(struct lov_lock, lls_sub[nr]), + GFP_NOFS); + if (!lovlck) + return ERR_PTR(-ENOMEM); - lck->lls_nr = nr; - /* - * First, fill in sub-lock descriptions in - * lck->lls_sub[].sub_descr. They are used by lov_sublock_alloc() - * (called below in this function, and by lov_lock_enqueue()) to - * create sub-locks. At this moment, no other thread can access - * top-lock. - */ + lovlck->lls_nr = nr; for (i = 0, nr = 0; i < r0->lo_nr; ++i) { if (likely(r0->lo_sub[i]) && lov_stripe_intersects(loo->lo_lsm, i, file_start, file_end, &start, &end)) { + struct lov_lock_sub *lls = &lovlck->lls_sub[nr]; struct cl_lock_descr *descr; - descr = &lck->lls_sub[nr].sub_descr; + descr = &lls->sub_lock.cll_descr; LASSERT(!descr->cld_obj); descr->cld_obj = lovsub2cl(r0->lo_sub[i]); descr->cld_start = cl_index(descr->cld_obj, start); descr->cld_end = cl_index(descr->cld_obj, end); - descr->cld_mode = parent->cll_descr.cld_mode; - descr->cld_gid = parent->cll_descr.cld_gid; - descr->cld_enq_flags = parent->cll_descr.cld_enq_flags; - /* XXX has no effect */ - lck->lls_sub[nr].sub_got = *descr; - lck->lls_sub[nr].sub_stripe = i; + descr->cld_mode = lock->cll_descr.cld_mode; + descr->cld_gid = lock->cll_descr.cld_gid; + descr->cld_enq_flags = lock->cll_descr.cld_enq_flags; + lls->sub_stripe = i; + + /* initialize sub lock */ + result = lov_sublock_init(env, lock, lls); + if (result < 0) + break; + + lls->sub_initialized = 1; nr++; } } - LASSERT(nr == lck->lls_nr); - - /* - * Some sub-locks can be missing at this point. This is not a problem, - * because enqueue will create them anyway. Main duty of this function - * is to fill in sub-lock descriptions in a race free manner. - */ - return result; -} + LASSERT(ergo(result == 0, nr == lovlck->lls_nr)); -static int lov_sublock_release(const struct lu_env *env, struct lov_lock *lck, - int i, int deluser, int rc) -{ - struct cl_lock *parent = lck->lls_cl.cls_lock; - - LASSERT(cl_lock_is_mutexed(parent)); - - if (lck->lls_sub[i].sub_flags & LSF_HELD) { - struct cl_lock *sublock; - int dying; - - sublock = lck->lls_sub[i].sub_lock->lss_cl.cls_lock; - LASSERT(cl_lock_is_mutexed(sublock)); + if (result != 0) { + for (i = 0; i < nr; ++i) { + if (!lovlck->lls_sub[i].sub_initialized) + break; - lck->lls_sub[i].sub_flags &= ~LSF_HELD; - if (deluser) - cl_lock_user_del(env, sublock); - /* - * If the last hold is released, and cancellation is pending - * for a sub-lock, release parent mutex, to avoid keeping it - * while sub-lock is being paged out. - */ - dying = (sublock->cll_descr.cld_mode == CLM_PHANTOM || - sublock->cll_descr.cld_mode == CLM_GROUP || - (sublock->cll_flags & (CLF_CANCELPEND|CLF_DOOMED))) && - sublock->cll_holds == 1; - if (dying) - cl_lock_mutex_put(env, parent); - cl_lock_unhold(env, sublock, "lov-parent", parent); - if (dying) { - cl_lock_mutex_get(env, parent); - rc = lov_subresult(rc, CLO_REPEAT); + cl_lock_fini(env, &lovlck->lls_sub[i].sub_lock); } - /* - * From now on lck->lls_sub[i].sub_lock is a "weak" pointer, - * not backed by a reference on a - * sub-lock. lovsub_lock_delete() will clear - * lck->lls_sub[i].sub_lock under semaphores, just before - * sub-lock is destroyed. - */ + kvfree(lovlck); + lovlck = ERR_PTR(result); } - return rc; -} - -static void lov_sublock_hold(const struct lu_env *env, struct lov_lock *lck, - int i) -{ - struct cl_lock *parent = lck->lls_cl.cls_lock; - - LASSERT(cl_lock_is_mutexed(parent)); - - if (!(lck->lls_sub[i].sub_flags & LSF_HELD)) { - struct cl_lock *sublock; - - sublock = lck->lls_sub[i].sub_lock->lss_cl.cls_lock; - LASSERT(cl_lock_is_mutexed(sublock)); - LASSERT(sublock->cll_state != CLS_FREEING); - lck->lls_sub[i].sub_flags |= LSF_HELD; - - cl_lock_get_trust(sublock); - cl_lock_hold_add(env, sublock, "lov-parent", parent); - cl_lock_user_add(env, sublock); - cl_lock_put(env, sublock); - } + return lovlck; } static void lov_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice) { - struct lov_lock *lck; + struct lov_lock *lovlck; int i; - lck = cl2lov_lock(slice); - LASSERT(lck->lls_nr_filled == 0); - if (lck->lls_sub) { - for (i = 0; i < lck->lls_nr; ++i) - /* - * No sub-locks exists at this point, as sub-lock has - * a reference on its parent. - */ - LASSERT(!lck->lls_sub[i].sub_lock); - kvfree(lck->lls_sub); + lovlck = cl2lov_lock(slice); + for (i = 0; i < lovlck->lls_nr; ++i) { + LASSERT(!lovlck->lls_sub[i].sub_is_enqueued); + if (lovlck->lls_sub[i].sub_initialized) + cl_lock_fini(env, &lovlck->lls_sub[i].sub_lock); } - kmem_cache_free(lov_lock_kmem, lck); -} - -static int lov_lock_enqueue_wait(const struct lu_env *env, - struct lov_lock *lck, - struct cl_lock *sublock) -{ - struct cl_lock *lock = lck->lls_cl.cls_lock; - int result; - - LASSERT(cl_lock_is_mutexed(lock)); - - cl_lock_mutex_put(env, lock); - result = cl_lock_enqueue_wait(env, sublock, 0); - cl_lock_mutex_get(env, lock); - return result ?: CLO_REPEAT; -} - -/** - * Tries to advance a state machine of a given sub-lock toward enqueuing of - * the top-lock. - * - * \retval 0 if state-transition can proceed - * \retval -ve otherwise. - */ -static int lov_lock_enqueue_one(const struct lu_env *env, struct lov_lock *lck, - struct cl_lock *sublock, - struct cl_io *io, __u32 enqflags, int last) -{ - int result; - - /* first, try to enqueue a sub-lock ... */ - result = cl_enqueue_try(env, sublock, io, enqflags); - if ((sublock->cll_state == CLS_ENQUEUED) && !(enqflags & CEF_AGL)) { - /* if it is enqueued, try to `wait' on it---maybe it's already - * granted - */ - result = cl_wait_try(env, sublock); - if (result == CLO_REENQUEUED) - result = CLO_WAIT; - } - /* - * If CEF_ASYNC flag is set, then all sub-locks can be enqueued in - * parallel, otherwise---enqueue has to wait until sub-lock is granted - * before proceeding to the next one. - */ - if ((result == CLO_WAIT) && (sublock->cll_state <= CLS_HELD) && - (enqflags & CEF_ASYNC) && (!last || (enqflags & CEF_AGL))) - result = 0; - return result; -} - -/** - * Helper function for lov_lock_enqueue() that creates missing sub-lock. - */ -static int lov_sublock_fill(const struct lu_env *env, struct cl_lock *parent, - struct cl_io *io, struct lov_lock *lck, int idx) -{ - struct lov_lock_link *link = NULL; - struct cl_lock *sublock; - int result; - - LASSERT(parent->cll_depth == 1); - cl_lock_mutex_put(env, parent); - sublock = lov_sublock_alloc(env, io, lck, idx, &link); - if (!IS_ERR(sublock)) - cl_lock_mutex_get(env, sublock); - cl_lock_mutex_get(env, parent); - - if (!IS_ERR(sublock)) { - cl_lock_get_trust(sublock); - if (parent->cll_state == CLS_QUEUING && - !lck->lls_sub[idx].sub_lock) { - lov_sublock_adopt(env, lck, sublock, idx, link); - } else { - kmem_cache_free(lov_lock_link_kmem, link); - /* other thread allocated sub-lock, or enqueue is no - * longer going on - */ - cl_lock_mutex_put(env, parent); - cl_lock_unhold(env, sublock, "lov-parent", parent); - cl_lock_mutex_get(env, parent); - } - cl_lock_mutex_put(env, sublock); - cl_lock_put(env, sublock); - result = CLO_REPEAT; - } else - result = PTR_ERR(sublock); - return result; + kvfree(lovlck); } /** @@ -543,529 +225,59 @@ static int lov_sublock_fill(const struct lu_env *env, struct cl_lock *parent, */ static int lov_lock_enqueue(const struct lu_env *env, const struct cl_lock_slice *slice, - struct cl_io *io, __u32 enqflags) + struct cl_io *io, struct cl_sync_io *anchor) { - struct cl_lock *lock = slice->cls_lock; - struct lov_lock *lck = cl2lov_lock(slice); - struct cl_lock_closure *closure = lov_closure_get(env, lock); + struct cl_lock *lock = slice->cls_lock; + struct lov_lock *lovlck = cl2lov_lock(slice); int i; - int result; - enum cl_lock_state minstate; + int rc = 0; - for (result = 0, minstate = CLS_FREEING, i = 0; i < lck->lls_nr; ++i) { - int rc; - struct lovsub_lock *sub; - struct lov_lock_sub *lls; - struct cl_lock *sublock; + for (i = 0; i < lovlck->lls_nr; ++i) { + struct lov_lock_sub *lls = &lovlck->lls_sub[i]; struct lov_sublock_env *subenv; - if (lock->cll_state != CLS_QUEUING) { - /* - * Lock might have left QUEUING state if previous - * iteration released its mutex. Stop enqueing in this - * case and let the upper layer to decide what to do. - */ - LASSERT(i > 0 && result != 0); - break; - } - - lls = &lck->lls_sub[i]; - sub = lls->sub_lock; - /* - * Sub-lock might have been canceled, while top-lock was - * cached. - */ - if (!sub) { - result = lov_sublock_fill(env, lock, io, lck, i); - /* lov_sublock_fill() released @lock mutex, - * restart. - */ + subenv = lov_sublock_env_get(env, lock, lls); + if (IS_ERR(subenv)) { + rc = PTR_ERR(subenv); break; } - sublock = sub->lss_cl.cls_lock; - rc = lov_sublock_lock(env, lck, lls, closure, &subenv); - if (rc == 0) { - lov_sublock_hold(env, lck, i); - rc = lov_lock_enqueue_one(subenv->lse_env, lck, sublock, - subenv->lse_io, enqflags, - i == lck->lls_nr - 1); - minstate = min(minstate, sublock->cll_state); - if (rc == CLO_WAIT) { - switch (sublock->cll_state) { - case CLS_QUEUING: - /* take recursive mutex, the lock is - * released in lov_lock_enqueue_wait. - */ - cl_lock_mutex_get(env, sublock); - lov_sublock_unlock(env, sub, closure, - subenv); - rc = lov_lock_enqueue_wait(env, lck, - sublock); - break; - case CLS_CACHED: - cl_lock_get(sublock); - /* take recursive mutex of sublock */ - cl_lock_mutex_get(env, sublock); - /* need to release all locks in closure - * otherwise it may deadlock. LU-2683. - */ - lov_sublock_unlock(env, sub, closure, - subenv); - /* sublock and parent are held. */ - rc = lov_sublock_release(env, lck, i, - 1, rc); - cl_lock_mutex_put(env, sublock); - cl_lock_put(env, sublock); - break; - default: - lov_sublock_unlock(env, sub, closure, - subenv); - break; - } - } else { - LASSERT(!sublock->cll_conflict); - lov_sublock_unlock(env, sub, closure, subenv); - } - } - result = lov_subresult(result, rc); - if (result != 0) + rc = cl_lock_enqueue(subenv->lse_env, subenv->lse_io, + &lls->sub_lock, anchor); + lov_sublock_env_put(subenv); + if (rc != 0) break; - } - cl_lock_closure_fini(closure); - return result ?: minstate >= CLS_ENQUEUED ? 0 : CLO_WAIT; -} - -static int lov_lock_unuse(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct lov_lock *lck = cl2lov_lock(slice); - struct cl_lock_closure *closure = lov_closure_get(env, slice->cls_lock); - int i; - int result; - - for (result = 0, i = 0; i < lck->lls_nr; ++i) { - int rc; - struct lovsub_lock *sub; - struct cl_lock *sublock; - struct lov_lock_sub *lls; - struct lov_sublock_env *subenv; - /* top-lock state cannot change concurrently, because single - * thread (one that released the last hold) carries unlocking - * to the completion. - */ - LASSERT(slice->cls_lock->cll_state == CLS_INTRANSIT); - lls = &lck->lls_sub[i]; - sub = lls->sub_lock; - if (!sub) - continue; - - sublock = sub->lss_cl.cls_lock; - rc = lov_sublock_lock(env, lck, lls, closure, &subenv); - if (rc == 0) { - if (lls->sub_flags & LSF_HELD) { - LASSERT(sublock->cll_state == CLS_HELD || - sublock->cll_state == CLS_ENQUEUED); - rc = cl_unuse_try(subenv->lse_env, sublock); - rc = lov_sublock_release(env, lck, i, 0, rc); - } - lov_sublock_unlock(env, sub, closure, subenv); - } - result = lov_subresult(result, rc); + lls->sub_is_enqueued = 1; } - - if (result == 0 && lck->lls_cancel_race) { - lck->lls_cancel_race = 0; - result = -ESTALE; - } - cl_lock_closure_fini(closure); - return result; + return rc; } static void lov_lock_cancel(const struct lu_env *env, const struct cl_lock_slice *slice) { - struct lov_lock *lck = cl2lov_lock(slice); - struct cl_lock_closure *closure = lov_closure_get(env, slice->cls_lock); + struct cl_lock *lock = slice->cls_lock; + struct lov_lock *lovlck = cl2lov_lock(slice); int i; - int result; - for (result = 0, i = 0; i < lck->lls_nr; ++i) { - int rc; - struct lovsub_lock *sub; - struct cl_lock *sublock; - struct lov_lock_sub *lls; + for (i = 0; i < lovlck->lls_nr; ++i) { + struct lov_lock_sub *lls = &lovlck->lls_sub[i]; + struct cl_lock *sublock = &lls->sub_lock; struct lov_sublock_env *subenv; - /* top-lock state cannot change concurrently, because single - * thread (one that released the last hold) carries unlocking - * to the completion. - */ - lls = &lck->lls_sub[i]; - sub = lls->sub_lock; - if (!sub) - continue; - - sublock = sub->lss_cl.cls_lock; - rc = lov_sublock_lock(env, lck, lls, closure, &subenv); - if (rc == 0) { - if (!(lls->sub_flags & LSF_HELD)) { - lov_sublock_unlock(env, sub, closure, subenv); - continue; - } - - switch (sublock->cll_state) { - case CLS_HELD: - rc = cl_unuse_try(subenv->lse_env, sublock); - lov_sublock_release(env, lck, i, 0, 0); - break; - default: - lov_sublock_release(env, lck, i, 1, 0); - break; - } - lov_sublock_unlock(env, sub, closure, subenv); - } - - if (rc == CLO_REPEAT) { - --i; - continue; - } - - result = lov_subresult(result, rc); - } - - if (result) - CL_LOCK_DEBUG(D_ERROR, env, slice->cls_lock, - "lov_lock_cancel fails with %d.\n", result); - - cl_lock_closure_fini(closure); -} - -static int lov_lock_wait(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct lov_lock *lck = cl2lov_lock(slice); - struct cl_lock_closure *closure = lov_closure_get(env, slice->cls_lock); - enum cl_lock_state minstate; - int reenqueued; - int result; - int i; - -again: - for (result = 0, minstate = CLS_FREEING, i = 0, reenqueued = 0; - i < lck->lls_nr; ++i) { - int rc; - struct lovsub_lock *sub; - struct cl_lock *sublock; - struct lov_lock_sub *lls; - struct lov_sublock_env *subenv; - - lls = &lck->lls_sub[i]; - sub = lls->sub_lock; - sublock = sub->lss_cl.cls_lock; - rc = lov_sublock_lock(env, lck, lls, closure, &subenv); - if (rc == 0) { - LASSERT(sublock->cll_state >= CLS_ENQUEUED); - if (sublock->cll_state < CLS_HELD) - rc = cl_wait_try(env, sublock); - - minstate = min(minstate, sublock->cll_state); - lov_sublock_unlock(env, sub, closure, subenv); - } - if (rc == CLO_REENQUEUED) { - reenqueued++; - rc = 0; - } - result = lov_subresult(result, rc); - if (result != 0) - break; - } - /* Each sublock only can be reenqueued once, so will not loop - * forever. - */ - if (result == 0 && reenqueued != 0) - goto again; - cl_lock_closure_fini(closure); - return result ?: minstate >= CLS_HELD ? 0 : CLO_WAIT; -} - -static int lov_lock_use(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct lov_lock *lck = cl2lov_lock(slice); - struct cl_lock_closure *closure = lov_closure_get(env, slice->cls_lock); - int result; - int i; - - LASSERT(slice->cls_lock->cll_state == CLS_INTRANSIT); - - for (result = 0, i = 0; i < lck->lls_nr; ++i) { - int rc; - struct lovsub_lock *sub; - struct cl_lock *sublock; - struct lov_lock_sub *lls; - struct lov_sublock_env *subenv; - - LASSERT(slice->cls_lock->cll_state == CLS_INTRANSIT); - - lls = &lck->lls_sub[i]; - sub = lls->sub_lock; - if (!sub) { - /* - * Sub-lock might have been canceled, while top-lock was - * cached. - */ - result = -ESTALE; - break; - } - - sublock = sub->lss_cl.cls_lock; - rc = lov_sublock_lock(env, lck, lls, closure, &subenv); - if (rc == 0) { - LASSERT(sublock->cll_state != CLS_FREEING); - lov_sublock_hold(env, lck, i); - if (sublock->cll_state == CLS_CACHED) { - rc = cl_use_try(subenv->lse_env, sublock, 0); - if (rc != 0) - rc = lov_sublock_release(env, lck, - i, 1, rc); - } else if (sublock->cll_state == CLS_NEW) { - /* Sub-lock might have been canceled, while - * top-lock was cached. - */ - result = -ESTALE; - lov_sublock_release(env, lck, i, 1, result); - } - lov_sublock_unlock(env, sub, closure, subenv); - } - result = lov_subresult(result, rc); - if (result != 0) - break; - } - - if (lck->lls_cancel_race) { - /* - * If there is unlocking happened at the same time, then - * sublock_lock state should be FREEING, and lov_sublock_lock - * should return CLO_REPEAT. In this case, it should return - * ESTALE, and up layer should reset the lock state to be NEW. - */ - lck->lls_cancel_race = 0; - LASSERT(result != 0); - result = -ESTALE; - } - cl_lock_closure_fini(closure); - return result; -} - -/** - * Check if the extent region \a descr is covered by \a child against the - * specific \a stripe. - */ -static int lov_lock_stripe_is_matching(const struct lu_env *env, - struct lov_object *lov, int stripe, - const struct cl_lock_descr *child, - const struct cl_lock_descr *descr) -{ - struct lov_stripe_md *lsm = lov->lo_lsm; - u64 start; - u64 end; - int result; - - if (lov_r0(lov)->lo_nr == 1) - return cl_lock_ext_match(child, descr); - - /* - * For a multi-stripes object: - * - make sure the descr only covers child's stripe, and - * - check if extent is matching. - */ - start = cl_offset(&lov->lo_cl, descr->cld_start); - end = cl_offset(&lov->lo_cl, descr->cld_end + 1) - 1; - result = 0; - /* glimpse should work on the object with LOV EA hole. */ - if (end - start <= lsm->lsm_stripe_size) { - int idx; - - idx = lov_stripe_number(lsm, start); - if (idx == stripe || - unlikely(!lov_r0(lov)->lo_sub[idx])) { - idx = lov_stripe_number(lsm, end); - if (idx == stripe || - unlikely(!lov_r0(lov)->lo_sub[idx])) - result = 1; - } - } - - if (result != 0) { - struct cl_lock_descr *subd = &lov_env_info(env)->lti_ldescr; - u64 sub_start; - u64 sub_end; - - subd->cld_obj = NULL; /* don't need sub object at all */ - subd->cld_mode = descr->cld_mode; - subd->cld_gid = descr->cld_gid; - result = lov_stripe_intersects(lsm, stripe, start, end, - &sub_start, &sub_end); - LASSERT(result); - subd->cld_start = cl_index(child->cld_obj, sub_start); - subd->cld_end = cl_index(child->cld_obj, sub_end); - result = cl_lock_ext_match(child, subd); - } - return result; -} - -/** - * An implementation of cl_lock_operations::clo_fits_into() method. - * - * Checks whether a lock (given by \a slice) is suitable for \a - * io. Multi-stripe locks can be used only for "quick" io, like truncate, or - * O_APPEND write. - * - * \see ccc_lock_fits_into(). - */ -static int lov_lock_fits_into(const struct lu_env *env, - const struct cl_lock_slice *slice, - const struct cl_lock_descr *need, - const struct cl_io *io) -{ - struct lov_lock *lov = cl2lov_lock(slice); - struct lov_object *obj = cl2lov(slice->cls_obj); - int result; - - LASSERT(cl_object_same(need->cld_obj, slice->cls_obj)); - LASSERT(lov->lls_nr > 0); - - /* for top lock, it's necessary to match enq flags otherwise it will - * run into problem if a sublock is missing and reenqueue. - */ - if (need->cld_enq_flags != lov->lls_orig.cld_enq_flags) - return 0; - - if (need->cld_mode == CLM_GROUP) - /* - * always allow to match group lock. - */ - result = cl_lock_ext_match(&lov->lls_orig, need); - else if (lov->lls_nr == 1) { - struct cl_lock_descr *got = &lov->lls_sub[0].sub_got; - - result = lov_lock_stripe_is_matching(env, - cl2lov(slice->cls_obj), - lov->lls_sub[0].sub_stripe, - got, need); - } else if (io->ci_type != CIT_SETATTR && io->ci_type != CIT_MISC && - !cl_io_is_append(io) && need->cld_mode != CLM_PHANTOM) - /* - * Multi-stripe locks are only suitable for `quick' IO and for - * glimpse. - */ - result = 0; - else - /* - * Most general case: multi-stripe existing lock, and - * (potentially) multi-stripe @need lock. Check that @need is - * covered by @lov's sub-locks. - * - * For now, ignore lock expansions made by the server, and - * match against original lock extent. - */ - result = cl_lock_ext_match(&lov->lls_orig, need); - CDEBUG(D_DLMTRACE, DDESCR"/"DDESCR" %d %d/%d: %d\n", - PDESCR(&lov->lls_orig), PDESCR(&lov->lls_sub[0].sub_got), - lov->lls_sub[0].sub_stripe, lov->lls_nr, lov_r0(obj)->lo_nr, - result); - return result; -} - -void lov_lock_unlink(const struct lu_env *env, - struct lov_lock_link *link, struct lovsub_lock *sub) -{ - struct lov_lock *lck = link->lll_super; - struct cl_lock *parent = lck->lls_cl.cls_lock; - - LASSERT(cl_lock_is_mutexed(parent)); - LASSERT(cl_lock_is_mutexed(sub->lss_cl.cls_lock)); - - list_del_init(&link->lll_list); - LASSERT(lck->lls_sub[link->lll_idx].sub_lock == sub); - /* yank this sub-lock from parent's array */ - lck->lls_sub[link->lll_idx].sub_lock = NULL; - LASSERT(lck->lls_nr_filled > 0); - lck->lls_nr_filled--; - lu_ref_del(&parent->cll_reference, "lov-child", sub->lss_cl.cls_lock); - cl_lock_put(env, parent); - kmem_cache_free(lov_lock_link_kmem, link); -} - -struct lov_lock_link *lov_lock_link_find(const struct lu_env *env, - struct lov_lock *lck, - struct lovsub_lock *sub) -{ - struct lov_lock_link *scan; - - LASSERT(cl_lock_is_mutexed(sub->lss_cl.cls_lock)); - - list_for_each_entry(scan, &sub->lss_parents, lll_list) { - if (scan->lll_super == lck) - return scan; - } - return NULL; -} - -/** - * An implementation of cl_lock_operations::clo_delete() method. This is - * invoked for "top-to-bottom" delete, when lock destruction starts from the - * top-lock, e.g., as a result of inode destruction. - * - * Unlinks top-lock from all its sub-locks. Sub-locks are not deleted there: - * this is done separately elsewhere: - * - * - for inode destruction, lov_object_delete() calls cl_object_kill() for - * each sub-object, purging its locks; - * - * - in other cases (e.g., a fatal error with a top-lock) sub-locks are - * left in the cache. - */ -static void lov_lock_delete(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct lov_lock *lck = cl2lov_lock(slice); - struct cl_lock_closure *closure = lov_closure_get(env, slice->cls_lock); - struct lov_lock_link *link; - int rc; - int i; - - LASSERT(slice->cls_lock->cll_state == CLS_FREEING); - - for (i = 0; i < lck->lls_nr; ++i) { - struct lov_lock_sub *lls = &lck->lls_sub[i]; - struct lovsub_lock *lsl = lls->sub_lock; - - if (!lsl) /* already removed */ + if (!lls->sub_is_enqueued) continue; - rc = lov_sublock_lock(env, lck, lls, closure, NULL); - if (rc == CLO_REPEAT) { - --i; - continue; + lls->sub_is_enqueued = 0; + subenv = lov_sublock_env_get(env, lock, lls); + if (!IS_ERR(subenv)) { + cl_lock_cancel(subenv->lse_env, sublock); + lov_sublock_env_put(subenv); + } else { + CL_LOCK_DEBUG(D_ERROR, env, slice->cls_lock, + "lov_lock_cancel fails with %ld.\n", + PTR_ERR(subenv)); } - - LASSERT(rc == 0); - LASSERT(lsl->lss_cl.cls_lock->cll_state < CLS_FREEING); - - if (lls->sub_flags & LSF_HELD) - lov_sublock_release(env, lck, i, 1, 0); - - link = lov_lock_link_find(env, lck, lsl); - LASSERT(link); - lov_lock_unlink(env, link, lsl); - LASSERT(!lck->lls_sub[i].sub_lock); - - lov_sublock_unlock(env, lsl, closure, NULL); } - - cl_lock_closure_fini(closure); } static int lov_lock_print(const struct lu_env *env, void *cookie, @@ -1079,12 +291,8 @@ static int lov_lock_print(const struct lu_env *env, void *cookie, struct lov_lock_sub *sub; sub = &lck->lls_sub[i]; - (*p)(env, cookie, " %d %x: ", i, sub->sub_flags); - if (sub->sub_lock) - cl_lock_print(env, cookie, p, - sub->sub_lock->lss_cl.cls_lock); - else - (*p)(env, cookie, "---\n"); + (*p)(env, cookie, " %d %x: ", i, sub->sub_is_enqueued); + cl_lock_print(env, cookie, p, &sub->sub_lock); } return 0; } @@ -1092,12 +300,7 @@ static int lov_lock_print(const struct lu_env *env, void *cookie, static const struct cl_lock_operations lov_lock_ops = { .clo_fini = lov_lock_fini, .clo_enqueue = lov_lock_enqueue, - .clo_wait = lov_lock_wait, - .clo_use = lov_lock_use, - .clo_unuse = lov_lock_unuse, .clo_cancel = lov_lock_cancel, - .clo_fits_into = lov_lock_fits_into, - .clo_delete = lov_lock_delete, .clo_print = lov_lock_print }; @@ -1105,14 +308,13 @@ int lov_lock_init_raid0(const struct lu_env *env, struct cl_object *obj, struct cl_lock *lock, const struct cl_io *io) { struct lov_lock *lck; - int result; + int result = 0; - lck = kmem_cache_zalloc(lov_lock_kmem, GFP_NOFS); - if (lck) { + lck = lov_lock_sub_init(env, obj, lock); + if (!IS_ERR(lck)) cl_lock_slice_add(lock, &lck->lls_cl, obj, &lov_lock_ops); - result = lov_lock_sub_init(env, lck, io); - } else - result = -ENOMEM; + else + result = PTR_ERR(lck); return result; } @@ -1147,21 +349,9 @@ int lov_lock_init_empty(const struct lu_env *env, struct cl_object *obj, lck = kmem_cache_zalloc(lov_lock_kmem, GFP_NOFS); if (lck) { cl_lock_slice_add(lock, &lck->lls_cl, obj, &lov_empty_lock_ops); - lck->lls_orig = lock->cll_descr; result = 0; } return result; } -static struct cl_lock_closure *lov_closure_get(const struct lu_env *env, - struct cl_lock *parent) -{ - struct cl_lock_closure *closure; - - closure = &lov_env_info(env)->lti_closure; - LASSERT(list_empty(&closure->clc_list)); - cl_lock_closure_init(env, closure, parent, 1); - return closure; -} - /** @} lov */ diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c index 0159b6f..6a353d1 100644 --- a/drivers/staging/lustre/lustre/lov/lov_object.c +++ b/drivers/staging/lustre/lustre/lov/lov_object.c @@ -310,8 +310,6 @@ static int lov_delete_empty(const struct lu_env *env, struct lov_object *lov, LASSERT(lov->lo_type == LLT_EMPTY || lov->lo_type == LLT_RELEASED); lov_layout_wait(env, lov); - - cl_locks_prune(env, &lov->lo_cl, 0); return 0; } @@ -379,7 +377,7 @@ static int lov_delete_raid0(const struct lu_env *env, struct lov_object *lov, struct lovsub_object *los = r0->lo_sub[i]; if (los) { - cl_locks_prune(env, &los->lso_cl, 1); + cl_object_prune(env, &los->lso_cl); /* * If top-level object is to be evicted from * the cache, so are its sub-objects. @@ -388,7 +386,6 @@ static int lov_delete_raid0(const struct lu_env *env, struct lov_object *lov, } } } - cl_locks_prune(env, &lov->lo_cl, 0); return 0; } @@ -714,7 +711,9 @@ static int lov_layout_change(const struct lu_env *unused, old_ops = &lov_dispatch[lov->lo_type]; new_ops = &lov_dispatch[llt]; - cl_object_prune(env, &lov->lo_cl); + result = cl_object_prune(env, &lov->lo_cl); + if (result != 0) + goto out; result = old_ops->llo_delete(env, lov, &lov->u); if (result == 0) { @@ -736,6 +735,7 @@ static int lov_layout_change(const struct lu_env *unused, } } +out: cl_env_put(env, &refcheck); cl_env_reexit(cookie); return result; @@ -816,7 +816,8 @@ static int lov_conf_set(const struct lu_env *env, struct cl_object *obj, goto out; } - lov->lo_layout_invalid = lov_layout_change(env, lov, conf); + result = lov_layout_change(env, lov, conf); + lov->lo_layout_invalid = result != 0; out: lov_conf_unlock(lov); diff --git a/drivers/staging/lustre/lustre/lov/lovsub_lock.c b/drivers/staging/lustre/lustre/lov/lovsub_lock.c index 3bb0c90..670d203 100644 --- a/drivers/staging/lustre/lustre/lov/lovsub_lock.c +++ b/drivers/staging/lustre/lustre/lov/lovsub_lock.c @@ -62,391 +62,8 @@ static void lovsub_lock_fini(const struct lu_env *env, kmem_cache_free(lovsub_lock_kmem, lsl); } -static void lovsub_parent_lock(const struct lu_env *env, struct lov_lock *lov) -{ - struct cl_lock *parent; - - parent = lov->lls_cl.cls_lock; - cl_lock_get(parent); - lu_ref_add(&parent->cll_reference, "lovsub-parent", current); - cl_lock_mutex_get(env, parent); -} - -static void lovsub_parent_unlock(const struct lu_env *env, struct lov_lock *lov) -{ - struct cl_lock *parent; - - parent = lov->lls_cl.cls_lock; - cl_lock_mutex_put(env, lov->lls_cl.cls_lock); - lu_ref_del(&parent->cll_reference, "lovsub-parent", current); - cl_lock_put(env, parent); -} - -/** - * Implements cl_lock_operations::clo_state() method for lovsub layer, which - * method is called whenever sub-lock state changes. Propagates state change - * to the top-locks. - */ -static void lovsub_lock_state(const struct lu_env *env, - const struct cl_lock_slice *slice, - enum cl_lock_state state) -{ - struct lovsub_lock *sub = cl2lovsub_lock(slice); - struct lov_lock_link *scan; - - LASSERT(cl_lock_is_mutexed(slice->cls_lock)); - - list_for_each_entry(scan, &sub->lss_parents, lll_list) { - struct lov_lock *lov = scan->lll_super; - struct cl_lock *parent = lov->lls_cl.cls_lock; - - if (sub->lss_active != parent) { - lovsub_parent_lock(env, lov); - cl_lock_signal(env, parent); - lovsub_parent_unlock(env, lov); - } - } -} - -/** - * Implementation of cl_lock_operation::clo_weigh() estimating lock weight by - * asking parent lock. - */ -static unsigned long lovsub_lock_weigh(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct lovsub_lock *lock = cl2lovsub_lock(slice); - struct lov_lock *lov; - unsigned long dumbbell; - - LASSERT(cl_lock_is_mutexed(slice->cls_lock)); - - if (!list_empty(&lock->lss_parents)) { - /* - * It is not clear whether all parents have to be asked and - * their estimations summed, or it is enough to ask one. For - * the current usages, one is always enough. - */ - lov = container_of(lock->lss_parents.next, - struct lov_lock_link, lll_list)->lll_super; - - lovsub_parent_lock(env, lov); - dumbbell = cl_lock_weigh(env, lov->lls_cl.cls_lock); - lovsub_parent_unlock(env, lov); - } else - dumbbell = 0; - - return dumbbell; -} - -/** - * Maps start/end offsets within a stripe, to offsets within a file. - */ -static void lovsub_lock_descr_map(const struct cl_lock_descr *in, - struct lov_object *lov, - int stripe, struct cl_lock_descr *out) -{ - pgoff_t size; /* stripe size in pages */ - pgoff_t skip; /* how many pages in every stripe are occupied by - * "other" stripes - */ - pgoff_t start; - pgoff_t end; - - start = in->cld_start; - end = in->cld_end; - - if (lov->lo_lsm->lsm_stripe_count > 1) { - size = cl_index(lov2cl(lov), lov->lo_lsm->lsm_stripe_size); - skip = (lov->lo_lsm->lsm_stripe_count - 1) * size; - - /* XXX overflow check here? */ - start += start/size * skip + stripe * size; - - if (end != CL_PAGE_EOF) { - end += end/size * skip + stripe * size; - /* - * And check for overflow... - */ - if (end < in->cld_end) - end = CL_PAGE_EOF; - } - } - out->cld_start = start; - out->cld_end = end; -} - -/** - * Adjusts parent lock extent when a sub-lock is attached to a parent. This is - * called in two ways: - * - * - as part of receive call-back, when server returns granted extent to - * the client, and - * - * - when top-lock finds existing sub-lock in the cache. - * - * Note, that lock mode is not propagated to the parent: i.e., if CLM_READ - * top-lock matches CLM_WRITE sub-lock, top-lock is still CLM_READ. - */ -int lov_sublock_modify(const struct lu_env *env, struct lov_lock *lov, - struct lovsub_lock *sublock, - const struct cl_lock_descr *d, int idx) -{ - struct cl_lock *parent; - struct lovsub_object *subobj; - struct cl_lock_descr *pd; - struct cl_lock_descr *parent_descr; - int result; - - parent = lov->lls_cl.cls_lock; - parent_descr = &parent->cll_descr; - LASSERT(cl_lock_mode_match(d->cld_mode, parent_descr->cld_mode)); - - subobj = cl2lovsub(sublock->lss_cl.cls_obj); - pd = &lov_env_info(env)->lti_ldescr; - - pd->cld_obj = parent_descr->cld_obj; - pd->cld_mode = parent_descr->cld_mode; - pd->cld_gid = parent_descr->cld_gid; - lovsub_lock_descr_map(d, subobj->lso_super, subobj->lso_index, pd); - lov->lls_sub[idx].sub_got = *d; - /* - * Notify top-lock about modification, if lock description changes - * materially. - */ - if (!cl_lock_ext_match(parent_descr, pd)) - result = cl_lock_modify(env, parent, pd); - else - result = 0; - return result; -} - -static int lovsub_lock_modify(const struct lu_env *env, - const struct cl_lock_slice *s, - const struct cl_lock_descr *d) -{ - struct lovsub_lock *lock = cl2lovsub_lock(s); - struct lov_lock_link *scan; - struct lov_lock *lov; - int result = 0; - - LASSERT(cl_lock_mode_match(d->cld_mode, - s->cls_lock->cll_descr.cld_mode)); - list_for_each_entry(scan, &lock->lss_parents, lll_list) { - int rc; - - lov = scan->lll_super; - lovsub_parent_lock(env, lov); - rc = lov_sublock_modify(env, lov, lock, d, scan->lll_idx); - lovsub_parent_unlock(env, lov); - result = result ?: rc; - } - return result; -} - -static int lovsub_lock_closure(const struct lu_env *env, - const struct cl_lock_slice *slice, - struct cl_lock_closure *closure) -{ - struct lovsub_lock *sub; - struct cl_lock *parent; - struct lov_lock_link *scan; - int result; - - LASSERT(cl_lock_is_mutexed(slice->cls_lock)); - - sub = cl2lovsub_lock(slice); - result = 0; - - list_for_each_entry(scan, &sub->lss_parents, lll_list) { - parent = scan->lll_super->lls_cl.cls_lock; - result = cl_lock_closure_build(env, parent, closure); - if (result != 0) - break; - } - return result; -} - -/** - * A helper function for lovsub_lock_delete() that deals with a given parent - * top-lock. - */ -static int lovsub_lock_delete_one(const struct lu_env *env, - struct cl_lock *child, struct lov_lock *lov) -{ - struct cl_lock *parent; - int result; - - parent = lov->lls_cl.cls_lock; - if (parent->cll_error) - return 0; - - result = 0; - switch (parent->cll_state) { - case CLS_ENQUEUED: - /* See LU-1355 for the case that a glimpse lock is - * interrupted by signal - */ - LASSERT(parent->cll_flags & CLF_CANCELLED); - break; - case CLS_QUEUING: - case CLS_FREEING: - cl_lock_signal(env, parent); - break; - case CLS_INTRANSIT: - /* - * Here lies a problem: a sub-lock is canceled while top-lock - * is being unlocked. Top-lock cannot be moved into CLS_NEW - * state, because unlocking has to succeed eventually by - * placing lock into CLS_CACHED (or failing it), see - * cl_unuse_try(). Nor can top-lock be left in CLS_CACHED - * state, because lov maintains an invariant that all - * sub-locks exist in CLS_CACHED (this allows cached top-lock - * to be reused immediately). Nor can we wait for top-lock - * state to change, because this can be synchronous to the - * current thread. - * - * We know for sure that lov_lock_unuse() will be called at - * least one more time to finish un-using, so leave a mark on - * the top-lock, that will be seen by the next call to - * lov_lock_unuse(). - */ - if (cl_lock_is_intransit(parent)) - lov->lls_cancel_race = 1; - break; - case CLS_CACHED: - /* - * if a sub-lock is canceled move its top-lock into CLS_NEW - * state to preserve an invariant that a top-lock in - * CLS_CACHED is immediately ready for re-use (i.e., has all - * sub-locks), and so that next attempt to re-use the top-lock - * enqueues missing sub-lock. - */ - cl_lock_state_set(env, parent, CLS_NEW); - /* fall through */ - case CLS_NEW: - /* - * if last sub-lock is canceled, destroy the top-lock (which - * is now `empty') proactively. - */ - if (lov->lls_nr_filled == 0) { - /* ... but unfortunately, this cannot be done easily, - * as cancellation of a top-lock might acquire mutices - * of its other sub-locks, violating lock ordering, - * see cl_lock_{cancel,delete}() preconditions. - * - * To work around this, the mutex of this sub-lock is - * released, top-lock is destroyed, and sub-lock mutex - * acquired again. The list of parents has to be - * re-scanned from the beginning after this. - * - * Only do this if no mutices other than on @child and - * @parent are held by the current thread. - * - * TODO: The lock modal here is too complex, because - * the lock may be canceled and deleted by voluntarily: - * cl_lock_request - * -> osc_lock_enqueue_wait - * -> osc_lock_cancel_wait - * -> cl_lock_delete - * -> lovsub_lock_delete - * -> cl_lock_cancel/delete - * -> ... - * - * The better choice is to spawn a kernel thread for - * this purpose. -jay - */ - if (cl_lock_nr_mutexed(env) == 2) { - cl_lock_mutex_put(env, child); - cl_lock_cancel(env, parent); - cl_lock_delete(env, parent); - result = 1; - } - } - break; - case CLS_HELD: - CL_LOCK_DEBUG(D_ERROR, env, parent, "Delete CLS_HELD lock\n"); - default: - CERROR("Impossible state: %d\n", parent->cll_state); - LBUG(); - break; - } - - return result; -} - -/** - * An implementation of cl_lock_operations::clo_delete() method. This is - * invoked in "bottom-to-top" delete, when lock destruction starts from the - * sub-lock (e.g, as a result of ldlm lock LRU policy). - */ -static void lovsub_lock_delete(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct cl_lock *child = slice->cls_lock; - struct lovsub_lock *sub = cl2lovsub_lock(slice); - int restart; - - LASSERT(cl_lock_is_mutexed(child)); - - /* - * Destruction of a sub-lock might take multiple iterations, because - * when the last sub-lock of a given top-lock is deleted, top-lock is - * canceled proactively, and this requires to release sub-lock - * mutex. Once sub-lock mutex has been released, list of its parents - * has to be re-scanned from the beginning. - */ - do { - struct lov_lock *lov; - struct lov_lock_link *scan; - struct lov_lock_link *temp; - struct lov_lock_sub *subdata; - - restart = 0; - list_for_each_entry_safe(scan, temp, - &sub->lss_parents, lll_list) { - lov = scan->lll_super; - subdata = &lov->lls_sub[scan->lll_idx]; - lovsub_parent_lock(env, lov); - subdata->sub_got = subdata->sub_descr; - lov_lock_unlink(env, scan, sub); - restart = lovsub_lock_delete_one(env, child, lov); - lovsub_parent_unlock(env, lov); - - if (restart) { - cl_lock_mutex_get(env, child); - break; - } - } - } while (restart); -} - -static int lovsub_lock_print(const struct lu_env *env, void *cookie, - lu_printer_t p, const struct cl_lock_slice *slice) -{ - struct lovsub_lock *sub = cl2lovsub_lock(slice); - struct lov_lock *lov; - struct lov_lock_link *scan; - - list_for_each_entry(scan, &sub->lss_parents, lll_list) { - lov = scan->lll_super; - (*p)(env, cookie, "[%d %p ", scan->lll_idx, lov); - if (lov) - cl_lock_descr_print(env, cookie, p, - &lov->lls_cl.cls_lock->cll_descr); - (*p)(env, cookie, "] "); - } - return 0; -} - static const struct cl_lock_operations lovsub_lock_ops = { .clo_fini = lovsub_lock_fini, - .clo_state = lovsub_lock_state, - .clo_delete = lovsub_lock_delete, - .clo_modify = lovsub_lock_modify, - .clo_closure = lovsub_lock_closure, - .clo_weigh = lovsub_lock_weigh, - .clo_print = lovsub_lock_print }; int lovsub_lock_init(const struct lu_env *env, struct cl_object *obj, diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c index 6a8dd9f..7655dc4 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_io.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c @@ -160,7 +160,6 @@ static int cl_io_init0(const struct lu_env *env, struct cl_io *io, io->ci_type = iot; INIT_LIST_HEAD(&io->ci_lockset.cls_todo); - INIT_LIST_HEAD(&io->ci_lockset.cls_curr); INIT_LIST_HEAD(&io->ci_lockset.cls_done); INIT_LIST_HEAD(&io->ci_layers); @@ -242,37 +241,7 @@ static int cl_lock_descr_sort(const struct cl_lock_descr *d0, const struct cl_lock_descr *d1) { return lu_fid_cmp(lu_object_fid(&d0->cld_obj->co_lu), - lu_object_fid(&d1->cld_obj->co_lu)) ?: - __diff_normalize(d0->cld_start, d1->cld_start); -} - -static int cl_lock_descr_cmp(const struct cl_lock_descr *d0, - const struct cl_lock_descr *d1) -{ - int ret; - - ret = lu_fid_cmp(lu_object_fid(&d0->cld_obj->co_lu), - lu_object_fid(&d1->cld_obj->co_lu)); - if (ret) - return ret; - if (d0->cld_end < d1->cld_start) - return -1; - if (d0->cld_start > d0->cld_end) - return 1; - return 0; -} - -static void cl_lock_descr_merge(struct cl_lock_descr *d0, - const struct cl_lock_descr *d1) -{ - d0->cld_start = min(d0->cld_start, d1->cld_start); - d0->cld_end = max(d0->cld_end, d1->cld_end); - - if (d1->cld_mode == CLM_WRITE && d0->cld_mode != CLM_WRITE) - d0->cld_mode = CLM_WRITE; - - if (d1->cld_mode == CLM_GROUP && d0->cld_mode != CLM_GROUP) - d0->cld_mode = CLM_GROUP; + lu_object_fid(&d1->cld_obj->co_lu)); } /* @@ -321,33 +290,35 @@ static void cl_io_locks_sort(struct cl_io *io) } while (!done); } -/** - * Check whether \a queue contains locks matching \a need. - * - * \retval +ve there is a matching lock in the \a queue - * \retval 0 there are no matching locks in the \a queue - */ -int cl_queue_match(const struct list_head *queue, - const struct cl_lock_descr *need) +static void cl_lock_descr_merge(struct cl_lock_descr *d0, + const struct cl_lock_descr *d1) { - struct cl_io_lock_link *scan; + d0->cld_start = min(d0->cld_start, d1->cld_start); + d0->cld_end = max(d0->cld_end, d1->cld_end); - list_for_each_entry(scan, queue, cill_linkage) { - if (cl_lock_descr_match(&scan->cill_descr, need)) - return 1; - } - return 0; + if (d1->cld_mode == CLM_WRITE && d0->cld_mode != CLM_WRITE) + d0->cld_mode = CLM_WRITE; + + if (d1->cld_mode == CLM_GROUP && d0->cld_mode != CLM_GROUP) + d0->cld_mode = CLM_GROUP; } -EXPORT_SYMBOL(cl_queue_match); -static int cl_queue_merge(const struct list_head *queue, - const struct cl_lock_descr *need) +static int cl_lockset_merge(const struct cl_lockset *set, + const struct cl_lock_descr *need) { struct cl_io_lock_link *scan; - list_for_each_entry(scan, queue, cill_linkage) { - if (cl_lock_descr_cmp(&scan->cill_descr, need)) + list_for_each_entry(scan, &set->cls_todo, cill_linkage) { + if (!cl_object_same(scan->cill_descr.cld_obj, need->cld_obj)) continue; + + /* Merge locks for the same object because ldlm lock server + * may expand the lock extent, otherwise there is a deadlock + * case if two conflicted locks are queueud for the same object + * and lock server expands one lock to overlap the another. + * The side effect is that it can generate a multi-stripe lock + * that may cause casacading problem + */ cl_lock_descr_merge(&scan->cill_descr, need); CDEBUG(D_VFSTRACE, "lock: %d: [%lu, %lu]\n", scan->cill_descr.cld_mode, scan->cill_descr.cld_start, @@ -357,87 +328,20 @@ static int cl_queue_merge(const struct list_head *queue, return 0; } -static int cl_lockset_match(const struct cl_lockset *set, - const struct cl_lock_descr *need) -{ - return cl_queue_match(&set->cls_curr, need) || - cl_queue_match(&set->cls_done, need); -} - -static int cl_lockset_merge(const struct cl_lockset *set, - const struct cl_lock_descr *need) -{ - return cl_queue_merge(&set->cls_todo, need) || - cl_lockset_match(set, need); -} - -static int cl_lockset_lock_one(const struct lu_env *env, - struct cl_io *io, struct cl_lockset *set, - struct cl_io_lock_link *link) -{ - struct cl_lock *lock; - int result; - - lock = cl_lock_request(env, io, &link->cill_descr, "io", io); - - if (!IS_ERR(lock)) { - link->cill_lock = lock; - list_move(&link->cill_linkage, &set->cls_curr); - if (!(link->cill_descr.cld_enq_flags & CEF_ASYNC)) { - result = cl_wait(env, lock); - if (result == 0) - list_move(&link->cill_linkage, &set->cls_done); - } else - result = 0; - } else - result = PTR_ERR(lock); - return result; -} - -static void cl_lock_link_fini(const struct lu_env *env, struct cl_io *io, - struct cl_io_lock_link *link) -{ - struct cl_lock *lock = link->cill_lock; - - list_del_init(&link->cill_linkage); - if (lock) { - cl_lock_release(env, lock, "io", io); - link->cill_lock = NULL; - } - if (link->cill_fini) - link->cill_fini(env, link); -} - static int cl_lockset_lock(const struct lu_env *env, struct cl_io *io, struct cl_lockset *set) { struct cl_io_lock_link *link; struct cl_io_lock_link *temp; - struct cl_lock *lock; int result; result = 0; list_for_each_entry_safe(link, temp, &set->cls_todo, cill_linkage) { - if (!cl_lockset_match(set, &link->cill_descr)) { - /* XXX some locking to guarantee that locks aren't - * expanded in between. - */ - result = cl_lockset_lock_one(env, io, set, link); - if (result != 0) - break; - } else - cl_lock_link_fini(env, io, link); - } - if (result == 0) { - list_for_each_entry_safe(link, temp, - &set->cls_curr, cill_linkage) { - lock = link->cill_lock; - result = cl_wait(env, lock); - if (result == 0) - list_move(&link->cill_linkage, &set->cls_done); - else - break; - } + result = cl_lock_request(env, io, &link->cill_lock); + if (result < 0) + break; + + list_move(&link->cill_linkage, &set->cls_done); } return result; } @@ -493,16 +397,19 @@ void cl_io_unlock(const struct lu_env *env, struct cl_io *io) set = &io->ci_lockset; - list_for_each_entry_safe(link, temp, &set->cls_todo, cill_linkage) - cl_lock_link_fini(env, io, link); - - list_for_each_entry_safe(link, temp, &set->cls_curr, cill_linkage) - cl_lock_link_fini(env, io, link); + list_for_each_entry_safe(link, temp, &set->cls_todo, cill_linkage) { + list_del_init(&link->cill_linkage); + if (link->cill_fini) + link->cill_fini(env, link); + } list_for_each_entry_safe(link, temp, &set->cls_done, cill_linkage) { - cl_unuse(env, link->cill_lock); - cl_lock_link_fini(env, io, link); + list_del_init(&link->cill_linkage); + cl_lock_release(env, &link->cill_lock); + if (link->cill_fini) + link->cill_fini(env, link); } + cl_io_for_each_reverse(scan, io) { if (scan->cis_iop->op[io->ci_type].cio_unlock) scan->cis_iop->op[io->ci_type].cio_unlock(env, scan); @@ -1435,6 +1342,7 @@ EXPORT_SYMBOL(cl_sync_io_end); void cl_sync_io_init(struct cl_sync_io *anchor, int nr, void (*end)(const struct lu_env *, struct cl_sync_io *)) { + memset(anchor, 0, sizeof(*anchor)); init_waitqueue_head(&anchor->csi_waitq); atomic_set(&anchor->csi_sync_nr, nr); atomic_set(&anchor->csi_barrier, nr > 0); diff --git a/drivers/staging/lustre/lustre/obdclass/cl_lock.c b/drivers/staging/lustre/lustre/obdclass/cl_lock.c index fe8059a..26a576b 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_lock.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_lock.c @@ -48,1987 +48,187 @@ #include "../include/cl_object.h" #include "cl_internal.h" -/** Lock class of cl_lock::cll_guard */ -static struct lock_class_key cl_lock_guard_class; -static struct kmem_cache *cl_lock_kmem; - -static struct lu_kmem_descr cl_lock_caches[] = { - { - .ckd_cache = &cl_lock_kmem, - .ckd_name = "cl_lock_kmem", - .ckd_size = sizeof (struct cl_lock) - }, - { - .ckd_cache = NULL - } -}; - -#define CS_LOCK_INC(o, item) -#define CS_LOCK_DEC(o, item) -#define CS_LOCKSTATE_INC(o, state) -#define CS_LOCKSTATE_DEC(o, state) - -/** - * Basic lock invariant that is maintained at all times. Caller either has a - * reference to \a lock, or somehow assures that \a lock cannot be freed. - * - * \see cl_lock_invariant() - */ -static int cl_lock_invariant_trusted(const struct lu_env *env, - const struct cl_lock *lock) -{ - return ergo(lock->cll_state == CLS_FREEING, lock->cll_holds == 0) && - atomic_read(&lock->cll_ref) >= lock->cll_holds && - lock->cll_holds >= lock->cll_users && - lock->cll_holds >= 0 && - lock->cll_users >= 0 && - lock->cll_depth >= 0; -} - -/** - * Stronger lock invariant, checking that caller has a reference on a lock. - * - * \see cl_lock_invariant_trusted() - */ -static int cl_lock_invariant(const struct lu_env *env, - const struct cl_lock *lock) -{ - int result; - - result = atomic_read(&lock->cll_ref) > 0 && - cl_lock_invariant_trusted(env, lock); - if (!result && env) - CL_LOCK_DEBUG(D_ERROR, env, lock, "invariant broken\n"); - return result; -} - -/** - * Returns lock "nesting": 0 for a top-lock and 1 for a sub-lock. - */ -static enum clt_nesting_level cl_lock_nesting(const struct cl_lock *lock) -{ - return cl_object_header(lock->cll_descr.cld_obj)->coh_nesting; -} - -/** - * Returns a set of counters for this lock, depending on a lock nesting. - */ -static struct cl_thread_counters *cl_lock_counters(const struct lu_env *env, - const struct cl_lock *lock) -{ - struct cl_thread_info *info; - enum clt_nesting_level nesting; - - info = cl_env_info(env); - nesting = cl_lock_nesting(lock); - LASSERT(nesting < ARRAY_SIZE(info->clt_counters)); - return &info->clt_counters[nesting]; -} - -static void cl_lock_trace0(int level, const struct lu_env *env, - const char *prefix, const struct cl_lock *lock, - const char *func, const int line) -{ - struct cl_object_header *h = cl_object_header(lock->cll_descr.cld_obj); - - CDEBUG(level, "%s: %p@(%d %p %d %d %d %d %d %lx)(%p/%d/%d) at %s():%d\n", - prefix, lock, atomic_read(&lock->cll_ref), - lock->cll_guarder, lock->cll_depth, - lock->cll_state, lock->cll_error, lock->cll_holds, - lock->cll_users, lock->cll_flags, - env, h->coh_nesting, cl_lock_nr_mutexed(env), - func, line); -} - -#define cl_lock_trace(level, env, prefix, lock) \ - cl_lock_trace0(level, env, prefix, lock, __func__, __LINE__) - -#define RETIP ((unsigned long)__builtin_return_address(0)) - -#ifdef CONFIG_LOCKDEP -static struct lock_class_key cl_lock_key; - -static void cl_lock_lockdep_init(struct cl_lock *lock) -{ - lockdep_set_class_and_name(lock, &cl_lock_key, "EXT"); -} - -static void cl_lock_lockdep_acquire(const struct lu_env *env, - struct cl_lock *lock, __u32 enqflags) -{ - cl_lock_counters(env, lock)->ctc_nr_locks_acquired++; - lock_map_acquire(&lock->dep_map); -} - -static void cl_lock_lockdep_release(const struct lu_env *env, - struct cl_lock *lock) -{ - cl_lock_counters(env, lock)->ctc_nr_locks_acquired--; - lock_release(&lock->dep_map, 0, RETIP); -} - -#else /* !CONFIG_LOCKDEP */ - -static void cl_lock_lockdep_init(struct cl_lock *lock) -{} -static void cl_lock_lockdep_acquire(const struct lu_env *env, - struct cl_lock *lock, __u32 enqflags) -{} -static void cl_lock_lockdep_release(const struct lu_env *env, - struct cl_lock *lock) -{} - -#endif /* !CONFIG_LOCKDEP */ - -/** - * Adds lock slice to the compound lock. - * - * This is called by cl_object_operations::coo_lock_init() methods to add a - * per-layer state to the lock. New state is added at the end of - * cl_lock::cll_layers list, that is, it is at the bottom of the stack. - * - * \see cl_req_slice_add(), cl_page_slice_add(), cl_io_slice_add() - */ -void cl_lock_slice_add(struct cl_lock *lock, struct cl_lock_slice *slice, - struct cl_object *obj, - const struct cl_lock_operations *ops) -{ - slice->cls_lock = lock; - list_add_tail(&slice->cls_linkage, &lock->cll_layers); - slice->cls_obj = obj; - slice->cls_ops = ops; -} -EXPORT_SYMBOL(cl_lock_slice_add); - -/** - * Returns true iff a lock with the mode \a has provides at least the same - * guarantees as a lock with the mode \a need. - */ -int cl_lock_mode_match(enum cl_lock_mode has, enum cl_lock_mode need) -{ - LINVRNT(need == CLM_READ || need == CLM_WRITE || - need == CLM_PHANTOM || need == CLM_GROUP); - LINVRNT(has == CLM_READ || has == CLM_WRITE || - has == CLM_PHANTOM || has == CLM_GROUP); - CLASSERT(CLM_PHANTOM < CLM_READ); - CLASSERT(CLM_READ < CLM_WRITE); - CLASSERT(CLM_WRITE < CLM_GROUP); - - if (has != CLM_GROUP) - return need <= has; - else - return need == has; -} -EXPORT_SYMBOL(cl_lock_mode_match); - -/** - * Returns true iff extent portions of lock descriptions match. - */ -int cl_lock_ext_match(const struct cl_lock_descr *has, - const struct cl_lock_descr *need) -{ - return - has->cld_start <= need->cld_start && - has->cld_end >= need->cld_end && - cl_lock_mode_match(has->cld_mode, need->cld_mode) && - (has->cld_mode != CLM_GROUP || has->cld_gid == need->cld_gid); -} -EXPORT_SYMBOL(cl_lock_ext_match); - -/** - * Returns true iff a lock with the description \a has provides at least the - * same guarantees as a lock with the description \a need. - */ -int cl_lock_descr_match(const struct cl_lock_descr *has, - const struct cl_lock_descr *need) -{ - return - cl_object_same(has->cld_obj, need->cld_obj) && - cl_lock_ext_match(has, need); -} -EXPORT_SYMBOL(cl_lock_descr_match); - -static void cl_lock_free(const struct lu_env *env, struct cl_lock *lock) -{ - struct cl_object *obj = lock->cll_descr.cld_obj; - - LINVRNT(!cl_lock_is_mutexed(lock)); - - cl_lock_trace(D_DLMTRACE, env, "free lock", lock); - while (!list_empty(&lock->cll_layers)) { - struct cl_lock_slice *slice; - - slice = list_entry(lock->cll_layers.next, - struct cl_lock_slice, cls_linkage); - list_del_init(lock->cll_layers.next); - slice->cls_ops->clo_fini(env, slice); - } - CS_LOCK_DEC(obj, total); - CS_LOCKSTATE_DEC(obj, lock->cll_state); - lu_object_ref_del_at(&obj->co_lu, &lock->cll_obj_ref, "cl_lock", lock); - cl_object_put(env, obj); - lu_ref_fini(&lock->cll_reference); - lu_ref_fini(&lock->cll_holders); - mutex_destroy(&lock->cll_guard); - kmem_cache_free(cl_lock_kmem, lock); -} - -/** - * Releases a reference on a lock. - * - * When last reference is released, lock is returned to the cache, unless it - * is in cl_lock_state::CLS_FREEING state, in which case it is destroyed - * immediately. - * - * \see cl_object_put(), cl_page_put() - */ -void cl_lock_put(const struct lu_env *env, struct cl_lock *lock) -{ - struct cl_object *obj; - - LINVRNT(cl_lock_invariant(env, lock)); - obj = lock->cll_descr.cld_obj; - LINVRNT(obj); - - CDEBUG(D_TRACE, "releasing reference: %d %p %lu\n", - atomic_read(&lock->cll_ref), lock, RETIP); - - if (atomic_dec_and_test(&lock->cll_ref)) { - if (lock->cll_state == CLS_FREEING) { - LASSERT(list_empty(&lock->cll_linkage)); - cl_lock_free(env, lock); - } - CS_LOCK_DEC(obj, busy); - } -} -EXPORT_SYMBOL(cl_lock_put); - -/** - * Acquires an additional reference to a lock. - * - * This can be called only by caller already possessing a reference to \a - * lock. - * - * \see cl_object_get(), cl_page_get() - */ -void cl_lock_get(struct cl_lock *lock) -{ - LINVRNT(cl_lock_invariant(NULL, lock)); - CDEBUG(D_TRACE, "acquiring reference: %d %p %lu\n", - atomic_read(&lock->cll_ref), lock, RETIP); - atomic_inc(&lock->cll_ref); -} -EXPORT_SYMBOL(cl_lock_get); - -/** - * Acquires a reference to a lock. - * - * This is much like cl_lock_get(), except that this function can be used to - * acquire initial reference to the cached lock. Caller has to deal with all - * possible races. Use with care! - * - * \see cl_page_get_trust() - */ -void cl_lock_get_trust(struct cl_lock *lock) -{ - CDEBUG(D_TRACE, "acquiring trusted reference: %d %p %lu\n", - atomic_read(&lock->cll_ref), lock, RETIP); - if (atomic_inc_return(&lock->cll_ref) == 1) - CS_LOCK_INC(lock->cll_descr.cld_obj, busy); -} -EXPORT_SYMBOL(cl_lock_get_trust); - -/** - * Helper function destroying the lock that wasn't completely initialized. - * - * Other threads can acquire references to the top-lock through its - * sub-locks. Hence, it cannot be cl_lock_free()-ed immediately. - */ -static void cl_lock_finish(const struct lu_env *env, struct cl_lock *lock) -{ - cl_lock_mutex_get(env, lock); - cl_lock_cancel(env, lock); - cl_lock_delete(env, lock); - cl_lock_mutex_put(env, lock); - cl_lock_put(env, lock); -} - -static struct cl_lock *cl_lock_alloc(const struct lu_env *env, - struct cl_object *obj, - const struct cl_io *io, - const struct cl_lock_descr *descr) -{ - struct cl_lock *lock; - struct lu_object_header *head; - - lock = kmem_cache_zalloc(cl_lock_kmem, GFP_NOFS); - if (lock) { - atomic_set(&lock->cll_ref, 1); - lock->cll_descr = *descr; - lock->cll_state = CLS_NEW; - cl_object_get(obj); - lu_object_ref_add_at(&obj->co_lu, &lock->cll_obj_ref, "cl_lock", - lock); - INIT_LIST_HEAD(&lock->cll_layers); - INIT_LIST_HEAD(&lock->cll_linkage); - INIT_LIST_HEAD(&lock->cll_inclosure); - lu_ref_init(&lock->cll_reference); - lu_ref_init(&lock->cll_holders); - mutex_init(&lock->cll_guard); - lockdep_set_class(&lock->cll_guard, &cl_lock_guard_class); - init_waitqueue_head(&lock->cll_wq); - head = obj->co_lu.lo_header; - CS_LOCKSTATE_INC(obj, CLS_NEW); - CS_LOCK_INC(obj, total); - CS_LOCK_INC(obj, create); - cl_lock_lockdep_init(lock); - list_for_each_entry(obj, &head->loh_layers, co_lu.lo_linkage) { - int err; - - err = obj->co_ops->coo_lock_init(env, obj, lock, io); - if (err != 0) { - cl_lock_finish(env, lock); - lock = ERR_PTR(err); - break; - } - } - } else - lock = ERR_PTR(-ENOMEM); - return lock; -} - -/** - * Transfer the lock into INTRANSIT state and return the original state. - * - * \pre state: CLS_CACHED, CLS_HELD or CLS_ENQUEUED - * \post state: CLS_INTRANSIT - * \see CLS_INTRANSIT - */ -static enum cl_lock_state cl_lock_intransit(const struct lu_env *env, - struct cl_lock *lock) -{ - enum cl_lock_state state = lock->cll_state; - - LASSERT(cl_lock_is_mutexed(lock)); - LASSERT(state != CLS_INTRANSIT); - LASSERTF(state >= CLS_ENQUEUED && state <= CLS_CACHED, - "Malformed lock state %d.\n", state); - - cl_lock_state_set(env, lock, CLS_INTRANSIT); - lock->cll_intransit_owner = current; - cl_lock_hold_add(env, lock, "intransit", current); - return state; -} - -/** - * Exit the intransit state and restore the lock state to the original state - */ -static void cl_lock_extransit(const struct lu_env *env, struct cl_lock *lock, - enum cl_lock_state state) -{ - LASSERT(cl_lock_is_mutexed(lock)); - LASSERT(lock->cll_state == CLS_INTRANSIT); - LASSERT(state != CLS_INTRANSIT); - LASSERT(lock->cll_intransit_owner == current); - - lock->cll_intransit_owner = NULL; - cl_lock_state_set(env, lock, state); - cl_lock_unhold(env, lock, "intransit", current); -} - -/** - * Checking whether the lock is intransit state - */ -int cl_lock_is_intransit(struct cl_lock *lock) -{ - LASSERT(cl_lock_is_mutexed(lock)); - return lock->cll_state == CLS_INTRANSIT && - lock->cll_intransit_owner != current; -} -EXPORT_SYMBOL(cl_lock_is_intransit); -/** - * Returns true iff lock is "suitable" for given io. E.g., locks acquired by - * truncate and O_APPEND cannot be reused for read/non-append-write, as they - * cover multiple stripes and can trigger cascading timeouts. - */ -static int cl_lock_fits_into(const struct lu_env *env, - const struct cl_lock *lock, - const struct cl_lock_descr *need, - const struct cl_io *io) -{ - const struct cl_lock_slice *slice; - - LINVRNT(cl_lock_invariant_trusted(env, lock)); - list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { - if (slice->cls_ops->clo_fits_into && - !slice->cls_ops->clo_fits_into(env, slice, need, io)) - return 0; - } - return 1; -} - -static struct cl_lock *cl_lock_lookup(const struct lu_env *env, - struct cl_object *obj, - const struct cl_io *io, - const struct cl_lock_descr *need) -{ - struct cl_lock *lock; - struct cl_object_header *head; - - head = cl_object_header(obj); - assert_spin_locked(&head->coh_lock_guard); - CS_LOCK_INC(obj, lookup); - list_for_each_entry(lock, &head->coh_locks, cll_linkage) { - int matched; - - matched = cl_lock_ext_match(&lock->cll_descr, need) && - lock->cll_state < CLS_FREEING && - lock->cll_error == 0 && - !(lock->cll_flags & CLF_CANCELLED) && - cl_lock_fits_into(env, lock, need, io); - CDEBUG(D_DLMTRACE, "has: "DDESCR"(%d) need: "DDESCR": %d\n", - PDESCR(&lock->cll_descr), lock->cll_state, PDESCR(need), - matched); - if (matched) { - cl_lock_get_trust(lock); - CS_LOCK_INC(obj, hit); - return lock; - } - } - return NULL; -} - -/** - * Returns a lock matching description \a need. - * - * This is the main entry point into the cl_lock caching interface. First, a - * cache (implemented as a per-object linked list) is consulted. If lock is - * found there, it is returned immediately. Otherwise new lock is allocated - * and returned. In any case, additional reference to lock is acquired. - * - * \see cl_object_find(), cl_page_find() - */ -static struct cl_lock *cl_lock_find(const struct lu_env *env, - const struct cl_io *io, - const struct cl_lock_descr *need) -{ - struct cl_object_header *head; - struct cl_object *obj; - struct cl_lock *lock; - - obj = need->cld_obj; - head = cl_object_header(obj); - - spin_lock(&head->coh_lock_guard); - lock = cl_lock_lookup(env, obj, io, need); - spin_unlock(&head->coh_lock_guard); - - if (!lock) { - lock = cl_lock_alloc(env, obj, io, need); - if (!IS_ERR(lock)) { - struct cl_lock *ghost; - - spin_lock(&head->coh_lock_guard); - ghost = cl_lock_lookup(env, obj, io, need); - if (!ghost) { - cl_lock_get_trust(lock); - list_add_tail(&lock->cll_linkage, - &head->coh_locks); - spin_unlock(&head->coh_lock_guard); - CS_LOCK_INC(obj, busy); - } else { - spin_unlock(&head->coh_lock_guard); - /* - * Other threads can acquire references to the - * top-lock through its sub-locks. Hence, it - * cannot be cl_lock_free()-ed immediately. - */ - cl_lock_finish(env, lock); - lock = ghost; - } - } - } - return lock; -} - -/** - * Returns existing lock matching given description. This is similar to - * cl_lock_find() except that no new lock is created, and returned lock is - * guaranteed to be in enum cl_lock_state::CLS_HELD state. - */ -struct cl_lock *cl_lock_peek(const struct lu_env *env, const struct cl_io *io, - const struct cl_lock_descr *need, - const char *scope, const void *source) -{ - struct cl_object_header *head; - struct cl_object *obj; - struct cl_lock *lock; - - obj = need->cld_obj; - head = cl_object_header(obj); - - do { - spin_lock(&head->coh_lock_guard); - lock = cl_lock_lookup(env, obj, io, need); - spin_unlock(&head->coh_lock_guard); - if (!lock) - return NULL; - - cl_lock_mutex_get(env, lock); - if (lock->cll_state == CLS_INTRANSIT) - /* Don't care return value. */ - cl_lock_state_wait(env, lock); - if (lock->cll_state == CLS_FREEING) { - cl_lock_mutex_put(env, lock); - cl_lock_put(env, lock); - lock = NULL; - } - } while (!lock); - - cl_lock_hold_add(env, lock, scope, source); - cl_lock_user_add(env, lock); - if (lock->cll_state == CLS_CACHED) - cl_use_try(env, lock, 1); - if (lock->cll_state == CLS_HELD) { - cl_lock_mutex_put(env, lock); - cl_lock_lockdep_acquire(env, lock, 0); - cl_lock_put(env, lock); - } else { - cl_unuse_try(env, lock); - cl_lock_unhold(env, lock, scope, source); - cl_lock_mutex_put(env, lock); - cl_lock_put(env, lock); - lock = NULL; - } - - return lock; -} -EXPORT_SYMBOL(cl_lock_peek); - -/** - * Returns a slice within a lock, corresponding to the given layer in the - * device stack. - * - * \see cl_page_at() - */ -const struct cl_lock_slice *cl_lock_at(const struct cl_lock *lock, - const struct lu_device_type *dtype) -{ - const struct cl_lock_slice *slice; - - LINVRNT(cl_lock_invariant_trusted(NULL, lock)); - - list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { - if (slice->cls_obj->co_lu.lo_dev->ld_type == dtype) - return slice; - } - return NULL; -} -EXPORT_SYMBOL(cl_lock_at); - -static void cl_lock_mutex_tail(const struct lu_env *env, struct cl_lock *lock) -{ - struct cl_thread_counters *counters; - - counters = cl_lock_counters(env, lock); - lock->cll_depth++; - counters->ctc_nr_locks_locked++; - lu_ref_add(&counters->ctc_locks_locked, "cll_guard", lock); - cl_lock_trace(D_TRACE, env, "got mutex", lock); -} - -/** - * Locks cl_lock object. - * - * This is used to manipulate cl_lock fields, and to serialize state - * transitions in the lock state machine. - * - * \post cl_lock_is_mutexed(lock) - * - * \see cl_lock_mutex_put() - */ -void cl_lock_mutex_get(const struct lu_env *env, struct cl_lock *lock) -{ - LINVRNT(cl_lock_invariant(env, lock)); - - if (lock->cll_guarder == current) { - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(lock->cll_depth > 0); - } else { - struct cl_object_header *hdr; - struct cl_thread_info *info; - int i; - - LINVRNT(lock->cll_guarder != current); - hdr = cl_object_header(lock->cll_descr.cld_obj); - /* - * Check that mutices are taken in the bottom-to-top order. - */ - info = cl_env_info(env); - for (i = 0; i < hdr->coh_nesting; ++i) - LASSERT(info->clt_counters[i].ctc_nr_locks_locked == 0); - mutex_lock_nested(&lock->cll_guard, hdr->coh_nesting); - lock->cll_guarder = current; - LINVRNT(lock->cll_depth == 0); - } - cl_lock_mutex_tail(env, lock); -} -EXPORT_SYMBOL(cl_lock_mutex_get); - -/** - * Try-locks cl_lock object. - * - * \retval 0 \a lock was successfully locked - * - * \retval -EBUSY \a lock cannot be locked right now - * - * \post ergo(result == 0, cl_lock_is_mutexed(lock)) - * - * \see cl_lock_mutex_get() - */ -static int cl_lock_mutex_try(const struct lu_env *env, struct cl_lock *lock) -{ - int result; - - LINVRNT(cl_lock_invariant_trusted(env, lock)); - - result = 0; - if (lock->cll_guarder == current) { - LINVRNT(lock->cll_depth > 0); - cl_lock_mutex_tail(env, lock); - } else if (mutex_trylock(&lock->cll_guard)) { - LINVRNT(lock->cll_depth == 0); - lock->cll_guarder = current; - cl_lock_mutex_tail(env, lock); - } else - result = -EBUSY; - return result; -} - -/** - {* Unlocks cl_lock object. - * - * \pre cl_lock_is_mutexed(lock) - * - * \see cl_lock_mutex_get() - */ -void cl_lock_mutex_put(const struct lu_env *env, struct cl_lock *lock) -{ - struct cl_thread_counters *counters; - - LINVRNT(cl_lock_invariant(env, lock)); - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(lock->cll_guarder == current); - LINVRNT(lock->cll_depth > 0); - - counters = cl_lock_counters(env, lock); - LINVRNT(counters->ctc_nr_locks_locked > 0); - - cl_lock_trace(D_TRACE, env, "put mutex", lock); - lu_ref_del(&counters->ctc_locks_locked, "cll_guard", lock); - counters->ctc_nr_locks_locked--; - if (--lock->cll_depth == 0) { - lock->cll_guarder = NULL; - mutex_unlock(&lock->cll_guard); - } -} -EXPORT_SYMBOL(cl_lock_mutex_put); - -/** - * Returns true iff lock's mutex is owned by the current thread. - */ -int cl_lock_is_mutexed(struct cl_lock *lock) -{ - return lock->cll_guarder == current; -} -EXPORT_SYMBOL(cl_lock_is_mutexed); - -/** - * Returns number of cl_lock mutices held by the current thread (environment). - */ -int cl_lock_nr_mutexed(const struct lu_env *env) -{ - struct cl_thread_info *info; - int i; - int locked; - - /* - * NOTE: if summation across all nesting levels (currently 2) proves - * too expensive, a summary counter can be added to - * struct cl_thread_info. - */ - info = cl_env_info(env); - for (i = 0, locked = 0; i < ARRAY_SIZE(info->clt_counters); ++i) - locked += info->clt_counters[i].ctc_nr_locks_locked; - return locked; -} -EXPORT_SYMBOL(cl_lock_nr_mutexed); - -static void cl_lock_cancel0(const struct lu_env *env, struct cl_lock *lock) -{ - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - if (!(lock->cll_flags & CLF_CANCELLED)) { - const struct cl_lock_slice *slice; - - lock->cll_flags |= CLF_CANCELLED; - list_for_each_entry_reverse(slice, &lock->cll_layers, - cls_linkage) { - if (slice->cls_ops->clo_cancel) - slice->cls_ops->clo_cancel(env, slice); - } - } -} - -static void cl_lock_delete0(const struct lu_env *env, struct cl_lock *lock) -{ - struct cl_object_header *head; - const struct cl_lock_slice *slice; - - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - - if (lock->cll_state < CLS_FREEING) { - bool in_cache; - - LASSERT(lock->cll_state != CLS_INTRANSIT); - cl_lock_state_set(env, lock, CLS_FREEING); - - head = cl_object_header(lock->cll_descr.cld_obj); - - spin_lock(&head->coh_lock_guard); - in_cache = !list_empty(&lock->cll_linkage); - if (in_cache) - list_del_init(&lock->cll_linkage); - spin_unlock(&head->coh_lock_guard); - - if (in_cache) /* coh_locks cache holds a refcount. */ - cl_lock_put(env, lock); - - /* - * From now on, no new references to this lock can be acquired - * by cl_lock_lookup(). - */ - list_for_each_entry_reverse(slice, &lock->cll_layers, - cls_linkage) { - if (slice->cls_ops->clo_delete) - slice->cls_ops->clo_delete(env, slice); - } - /* - * From now on, no new references to this lock can be acquired - * by layer-specific means (like a pointer from struct - * ldlm_lock in osc, or a pointer from top-lock to sub-lock in - * lov). - * - * Lock will be finally freed in cl_lock_put() when last of - * existing references goes away. - */ - } -} - -/** - * Mod(ifie)s cl_lock::cll_holds counter for a given lock. Also, for a - * top-lock (nesting == 0) accounts for this modification in the per-thread - * debugging counters. Sub-lock holds can be released by a thread different - * from one that acquired it. - */ -static void cl_lock_hold_mod(const struct lu_env *env, struct cl_lock *lock, - int delta) -{ - struct cl_thread_counters *counters; - enum clt_nesting_level nesting; - - lock->cll_holds += delta; - nesting = cl_lock_nesting(lock); - if (nesting == CNL_TOP) { - counters = &cl_env_info(env)->clt_counters[CNL_TOP]; - counters->ctc_nr_held += delta; - LASSERT(counters->ctc_nr_held >= 0); - } -} - -/** - * Mod(ifie)s cl_lock::cll_users counter for a given lock. See - * cl_lock_hold_mod() for the explanation of the debugging code. - */ -static void cl_lock_used_mod(const struct lu_env *env, struct cl_lock *lock, - int delta) -{ - struct cl_thread_counters *counters; - enum clt_nesting_level nesting; - - lock->cll_users += delta; - nesting = cl_lock_nesting(lock); - if (nesting == CNL_TOP) { - counters = &cl_env_info(env)->clt_counters[CNL_TOP]; - counters->ctc_nr_used += delta; - LASSERT(counters->ctc_nr_used >= 0); - } -} - -void cl_lock_hold_release(const struct lu_env *env, struct cl_lock *lock, - const char *scope, const void *source) -{ - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - LASSERT(lock->cll_holds > 0); - - cl_lock_trace(D_DLMTRACE, env, "hold release lock", lock); - lu_ref_del(&lock->cll_holders, scope, source); - cl_lock_hold_mod(env, lock, -1); - if (lock->cll_holds == 0) { - CL_LOCK_ASSERT(lock->cll_state != CLS_HELD, env, lock); - if (lock->cll_descr.cld_mode == CLM_PHANTOM || - lock->cll_descr.cld_mode == CLM_GROUP || - lock->cll_state != CLS_CACHED) - /* - * If lock is still phantom or grouplock when user is - * done with it---destroy the lock. - */ - lock->cll_flags |= CLF_CANCELPEND|CLF_DOOMED; - if (lock->cll_flags & CLF_CANCELPEND) { - lock->cll_flags &= ~CLF_CANCELPEND; - cl_lock_cancel0(env, lock); - } - if (lock->cll_flags & CLF_DOOMED) { - /* no longer doomed: it's dead... Jim. */ - lock->cll_flags &= ~CLF_DOOMED; - cl_lock_delete0(env, lock); - } - } -} -EXPORT_SYMBOL(cl_lock_hold_release); - -/** - * Waits until lock state is changed. - * - * This function is called with cl_lock mutex locked, atomically releases - * mutex and goes to sleep, waiting for a lock state change (signaled by - * cl_lock_signal()), and re-acquires the mutex before return. - * - * This function is used to wait until lock state machine makes some progress - * and to emulate synchronous operations on top of asynchronous lock - * interface. - * - * \retval -EINTR wait was interrupted - * - * \retval 0 wait wasn't interrupted - * - * \pre cl_lock_is_mutexed(lock) - * - * \see cl_lock_signal() - */ -int cl_lock_state_wait(const struct lu_env *env, struct cl_lock *lock) -{ - wait_queue_t waiter; - sigset_t blocked; - int result; - - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - LASSERT(lock->cll_depth == 1); - LASSERT(lock->cll_state != CLS_FREEING); /* too late to wait */ - - cl_lock_trace(D_DLMTRACE, env, "state wait lock", lock); - result = lock->cll_error; - if (result == 0) { - /* To avoid being interrupted by the 'non-fatal' signals - * (SIGCHLD, for instance), we'd block them temporarily. - * LU-305 - */ - blocked = cfs_block_sigsinv(LUSTRE_FATAL_SIGS); - - init_waitqueue_entry(&waiter, current); - add_wait_queue(&lock->cll_wq, &waiter); - set_current_state(TASK_INTERRUPTIBLE); - cl_lock_mutex_put(env, lock); - - LASSERT(cl_lock_nr_mutexed(env) == 0); - - /* Returning ERESTARTSYS instead of EINTR so syscalls - * can be restarted if signals are pending here - */ - result = -ERESTARTSYS; - if (likely(!OBD_FAIL_CHECK(OBD_FAIL_LOCK_STATE_WAIT_INTR))) { - schedule(); - if (!signal_pending(current)) - result = 0; - } - - cl_lock_mutex_get(env, lock); - set_current_state(TASK_RUNNING); - remove_wait_queue(&lock->cll_wq, &waiter); - - /* Restore old blocked signals */ - cfs_restore_sigs(blocked); - } - return result; -} -EXPORT_SYMBOL(cl_lock_state_wait); - -static void cl_lock_state_signal(const struct lu_env *env, struct cl_lock *lock, - enum cl_lock_state state) -{ - const struct cl_lock_slice *slice; - - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - - list_for_each_entry(slice, &lock->cll_layers, cls_linkage) - if (slice->cls_ops->clo_state) - slice->cls_ops->clo_state(env, slice, state); - wake_up_all(&lock->cll_wq); -} - -/** - * Notifies waiters that lock state changed. - * - * Wakes up all waiters sleeping in cl_lock_state_wait(), also notifies all - * layers about state change by calling cl_lock_operations::clo_state() - * top-to-bottom. - */ -void cl_lock_signal(const struct lu_env *env, struct cl_lock *lock) -{ - cl_lock_trace(D_DLMTRACE, env, "state signal lock", lock); - cl_lock_state_signal(env, lock, lock->cll_state); -} -EXPORT_SYMBOL(cl_lock_signal); - -/** - * Changes lock state. - * - * This function is invoked to notify layers that lock state changed, possible - * as a result of an asynchronous event such as call-back reception. - * - * \post lock->cll_state == state - * - * \see cl_lock_operations::clo_state() - */ -void cl_lock_state_set(const struct lu_env *env, struct cl_lock *lock, - enum cl_lock_state state) -{ - LASSERT(lock->cll_state <= state || - (lock->cll_state == CLS_CACHED && - (state == CLS_HELD || /* lock found in cache */ - state == CLS_NEW || /* sub-lock canceled */ - state == CLS_INTRANSIT)) || - /* lock is in transit state */ - lock->cll_state == CLS_INTRANSIT); - - if (lock->cll_state != state) { - CS_LOCKSTATE_DEC(lock->cll_descr.cld_obj, lock->cll_state); - CS_LOCKSTATE_INC(lock->cll_descr.cld_obj, state); - - cl_lock_state_signal(env, lock, state); - lock->cll_state = state; - } -} -EXPORT_SYMBOL(cl_lock_state_set); - -static int cl_unuse_try_internal(const struct lu_env *env, struct cl_lock *lock) -{ - const struct cl_lock_slice *slice; - int result; - - do { - result = 0; - - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - LASSERT(lock->cll_state == CLS_INTRANSIT); - - result = -ENOSYS; - list_for_each_entry_reverse(slice, &lock->cll_layers, - cls_linkage) { - if (slice->cls_ops->clo_unuse) { - result = slice->cls_ops->clo_unuse(env, slice); - if (result != 0) - break; - } - } - LASSERT(result != -ENOSYS); - } while (result == CLO_REPEAT); - - return result; -} - -/** - * Yanks lock from the cache (cl_lock_state::CLS_CACHED state) by calling - * cl_lock_operations::clo_use() top-to-bottom to notify layers. - * @atomic = 1, it must unuse the lock to recovery the lock to keep the - * use process atomic - */ -int cl_use_try(const struct lu_env *env, struct cl_lock *lock, int atomic) -{ - const struct cl_lock_slice *slice; - int result; - enum cl_lock_state state; - - cl_lock_trace(D_DLMTRACE, env, "use lock", lock); - - LASSERT(lock->cll_state == CLS_CACHED); - if (lock->cll_error) - return lock->cll_error; - - result = -ENOSYS; - state = cl_lock_intransit(env, lock); - list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { - if (slice->cls_ops->clo_use) { - result = slice->cls_ops->clo_use(env, slice); - if (result != 0) - break; - } - } - LASSERT(result != -ENOSYS); - - LASSERTF(lock->cll_state == CLS_INTRANSIT, "Wrong state %d.\n", - lock->cll_state); - - if (result == 0) { - state = CLS_HELD; - } else { - if (result == -ESTALE) { - /* - * ESTALE means sublock being cancelled - * at this time, and set lock state to - * be NEW here and ask the caller to repeat. - */ - state = CLS_NEW; - result = CLO_REPEAT; - } - - /* @atomic means back-off-on-failure. */ - if (atomic) { - int rc; - - rc = cl_unuse_try_internal(env, lock); - /* Vet the results. */ - if (rc < 0 && result > 0) - result = rc; - } - - } - cl_lock_extransit(env, lock, state); - return result; -} -EXPORT_SYMBOL(cl_use_try); - -/** - * Helper for cl_enqueue_try() that calls ->clo_enqueue() across all layers - * top-to-bottom. - */ -static int cl_enqueue_kick(const struct lu_env *env, - struct cl_lock *lock, - struct cl_io *io, __u32 flags) -{ - int result; - const struct cl_lock_slice *slice; - - result = -ENOSYS; - list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { - if (slice->cls_ops->clo_enqueue) { - result = slice->cls_ops->clo_enqueue(env, - slice, io, flags); - if (result != 0) - break; - } - } - LASSERT(result != -ENOSYS); - return result; -} - -/** - * Tries to enqueue a lock. - * - * This function is called repeatedly by cl_enqueue() until either lock is - * enqueued, or error occurs. This function does not block waiting for - * networking communication to complete. - * - * \post ergo(result == 0, lock->cll_state == CLS_ENQUEUED || - * lock->cll_state == CLS_HELD) - * - * \see cl_enqueue() cl_lock_operations::clo_enqueue() - * \see cl_lock_state::CLS_ENQUEUED - */ -int cl_enqueue_try(const struct lu_env *env, struct cl_lock *lock, - struct cl_io *io, __u32 flags) -{ - int result; - - cl_lock_trace(D_DLMTRACE, env, "enqueue lock", lock); - do { - LINVRNT(cl_lock_is_mutexed(lock)); - - result = lock->cll_error; - if (result != 0) - break; - - switch (lock->cll_state) { - case CLS_NEW: - cl_lock_state_set(env, lock, CLS_QUEUING); - /* fall-through */ - case CLS_QUEUING: - /* kick layers. */ - result = cl_enqueue_kick(env, lock, io, flags); - /* For AGL case, the cl_lock::cll_state may - * become CLS_HELD already. - */ - if (result == 0 && lock->cll_state == CLS_QUEUING) - cl_lock_state_set(env, lock, CLS_ENQUEUED); - break; - case CLS_INTRANSIT: - LASSERT(cl_lock_is_intransit(lock)); - result = CLO_WAIT; - break; - case CLS_CACHED: - /* yank lock from the cache. */ - result = cl_use_try(env, lock, 0); - break; - case CLS_ENQUEUED: - case CLS_HELD: - result = 0; - break; - default: - case CLS_FREEING: - /* - * impossible, only held locks with increased - * ->cll_holds can be enqueued, and they cannot be - * freed. - */ - LBUG(); - } - } while (result == CLO_REPEAT); - return result; -} -EXPORT_SYMBOL(cl_enqueue_try); - -/** - * Cancel the conflicting lock found during previous enqueue. - * - * \retval 0 conflicting lock has been canceled. - * \retval -ve error code. - */ -int cl_lock_enqueue_wait(const struct lu_env *env, - struct cl_lock *lock, - int keep_mutex) -{ - struct cl_lock *conflict; - int rc = 0; - - LASSERT(cl_lock_is_mutexed(lock)); - LASSERT(lock->cll_state == CLS_QUEUING); - LASSERT(lock->cll_conflict); - - conflict = lock->cll_conflict; - lock->cll_conflict = NULL; - - cl_lock_mutex_put(env, lock); - LASSERT(cl_lock_nr_mutexed(env) == 0); - - cl_lock_mutex_get(env, conflict); - cl_lock_trace(D_DLMTRACE, env, "enqueue wait", conflict); - cl_lock_cancel(env, conflict); - cl_lock_delete(env, conflict); - - while (conflict->cll_state != CLS_FREEING) { - rc = cl_lock_state_wait(env, conflict); - if (rc != 0) - break; - } - cl_lock_mutex_put(env, conflict); - lu_ref_del(&conflict->cll_reference, "cancel-wait", lock); - cl_lock_put(env, conflict); - - if (keep_mutex) - cl_lock_mutex_get(env, lock); - - LASSERT(rc <= 0); - return rc; -} -EXPORT_SYMBOL(cl_lock_enqueue_wait); - -static int cl_enqueue_locked(const struct lu_env *env, struct cl_lock *lock, - struct cl_io *io, __u32 enqflags) +static void cl_lock_trace0(int level, const struct lu_env *env, + const char *prefix, const struct cl_lock *lock, + const char *func, const int line) { - int result; - - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - LASSERT(lock->cll_holds > 0); + struct cl_object_header *h = cl_object_header(lock->cll_descr.cld_obj); - cl_lock_user_add(env, lock); - do { - result = cl_enqueue_try(env, lock, io, enqflags); - if (result == CLO_WAIT) { - if (lock->cll_conflict) - result = cl_lock_enqueue_wait(env, lock, 1); - else - result = cl_lock_state_wait(env, lock); - if (result == 0) - continue; - } - break; - } while (1); - if (result != 0) - cl_unuse_try(env, lock); - LASSERT(ergo(result == 0 && !(enqflags & CEF_AGL), - lock->cll_state == CLS_ENQUEUED || - lock->cll_state == CLS_HELD)); - return result; + CDEBUG(level, "%s: %p (%p/%d) at %s():%d\n", + prefix, lock, env, h->coh_nesting, func, line); } +#define cl_lock_trace(level, env, prefix, lock) \ + cl_lock_trace0(level, env, prefix, lock, __func__, __LINE__) /** - * Tries to unlock a lock. - * - * This function is called to release underlying resource: - * 1. for top lock, the resource is sublocks it held; - * 2. for sublock, the resource is the reference to dlmlock. + * Adds lock slice to the compound lock. * - * cl_unuse_try is a one-shot operation, so it must NOT return CLO_WAIT. + * This is called by cl_object_operations::coo_lock_init() methods to add a + * per-layer state to the lock. New state is added at the end of + * cl_lock::cll_layers list, that is, it is at the bottom of the stack. * - * \see cl_unuse() cl_lock_operations::clo_unuse() - * \see cl_lock_state::CLS_CACHED + * \see cl_req_slice_add(), cl_page_slice_add(), cl_io_slice_add() */ -int cl_unuse_try(const struct lu_env *env, struct cl_lock *lock) +void cl_lock_slice_add(struct cl_lock *lock, struct cl_lock_slice *slice, + struct cl_object *obj, + const struct cl_lock_operations *ops) { - int result; - enum cl_lock_state state = CLS_NEW; - - cl_lock_trace(D_DLMTRACE, env, "unuse lock", lock); - - if (lock->cll_users > 1) { - cl_lock_user_del(env, lock); - return 0; - } - - /* Only if the lock is in CLS_HELD or CLS_ENQUEUED state, it can hold - * underlying resources. - */ - if (!(lock->cll_state == CLS_HELD || lock->cll_state == CLS_ENQUEUED)) { - cl_lock_user_del(env, lock); - return 0; - } - - /* - * New lock users (->cll_users) are not protecting unlocking - * from proceeding. From this point, lock eventually reaches - * CLS_CACHED, is reinitialized to CLS_NEW or fails into - * CLS_FREEING. - */ - state = cl_lock_intransit(env, lock); - - result = cl_unuse_try_internal(env, lock); - LASSERT(lock->cll_state == CLS_INTRANSIT); - LASSERT(result != CLO_WAIT); - cl_lock_user_del(env, lock); - if (result == 0 || result == -ESTALE) { - /* - * Return lock back to the cache. This is the only - * place where lock is moved into CLS_CACHED state. - * - * If one of ->clo_unuse() methods returned -ESTALE, lock - * cannot be placed into cache and has to be - * re-initialized. This happens e.g., when a sub-lock was - * canceled while unlocking was in progress. - */ - if (state == CLS_HELD && result == 0) - state = CLS_CACHED; - else - state = CLS_NEW; - cl_lock_extransit(env, lock, state); - - /* - * Hide -ESTALE error. - * If the lock is a glimpse lock, and it has multiple - * stripes. Assuming that one of its sublock returned -ENAVAIL, - * and other sublocks are matched write locks. In this case, - * we can't set this lock to error because otherwise some of - * its sublocks may not be canceled. This causes some dirty - * pages won't be written to OSTs. -jay - */ - result = 0; - } else { - CERROR("result = %d, this is unlikely!\n", result); - state = CLS_NEW; - cl_lock_extransit(env, lock, state); - } - return result ?: lock->cll_error; + slice->cls_lock = lock; + list_add_tail(&slice->cls_linkage, &lock->cll_layers); + slice->cls_obj = obj; + slice->cls_ops = ops; } -EXPORT_SYMBOL(cl_unuse_try); +EXPORT_SYMBOL(cl_lock_slice_add); -static void cl_unuse_locked(const struct lu_env *env, struct cl_lock *lock) +void cl_lock_fini(const struct lu_env *env, struct cl_lock *lock) { - int result; + cl_lock_trace(D_DLMTRACE, env, "destroy lock", lock); - result = cl_unuse_try(env, lock); - if (result) - CL_LOCK_DEBUG(D_ERROR, env, lock, "unuse return %d\n", result); -} + while (!list_empty(&lock->cll_layers)) { + struct cl_lock_slice *slice; -/** - * Unlocks a lock. - */ -void cl_unuse(const struct lu_env *env, struct cl_lock *lock) -{ - cl_lock_mutex_get(env, lock); - cl_unuse_locked(env, lock); - cl_lock_mutex_put(env, lock); - cl_lock_lockdep_release(env, lock); + slice = list_entry(lock->cll_layers.next, + struct cl_lock_slice, cls_linkage); + list_del_init(lock->cll_layers.next); + slice->cls_ops->clo_fini(env, slice); + } + POISON(lock, 0x5a, sizeof(*lock)); } -EXPORT_SYMBOL(cl_unuse); +EXPORT_SYMBOL(cl_lock_fini); -/** - * Tries to wait for a lock. - * - * This function is called repeatedly by cl_wait() until either lock is - * granted, or error occurs. This function does not block waiting for network - * communication to complete. - * - * \see cl_wait() cl_lock_operations::clo_wait() - * \see cl_lock_state::CLS_HELD - */ -int cl_wait_try(const struct lu_env *env, struct cl_lock *lock) +int cl_lock_init(const struct lu_env *env, struct cl_lock *lock, + const struct cl_io *io) { - const struct cl_lock_slice *slice; - int result; - - cl_lock_trace(D_DLMTRACE, env, "wait lock try", lock); - do { - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - LASSERTF(lock->cll_state == CLS_QUEUING || - lock->cll_state == CLS_ENQUEUED || - lock->cll_state == CLS_HELD || - lock->cll_state == CLS_INTRANSIT, - "lock state: %d\n", lock->cll_state); - LASSERT(lock->cll_users > 0); - LASSERT(lock->cll_holds > 0); + struct cl_object *obj = lock->cll_descr.cld_obj; + struct cl_object *scan; + int result = 0; - result = lock->cll_error; - if (result != 0) - break; + /* Make sure cl_lock::cll_descr is initialized. */ + LASSERT(obj); - if (cl_lock_is_intransit(lock)) { - result = CLO_WAIT; + INIT_LIST_HEAD(&lock->cll_layers); + list_for_each_entry(scan, &obj->co_lu.lo_header->loh_layers, + co_lu.lo_linkage) { + result = scan->co_ops->coo_lock_init(env, scan, lock, io); + if (result != 0) { + cl_lock_fini(env, lock); break; } + } - if (lock->cll_state == CLS_HELD) - /* nothing to do */ - break; - - result = -ENOSYS; - list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { - if (slice->cls_ops->clo_wait) { - result = slice->cls_ops->clo_wait(env, slice); - if (result != 0) - break; - } - } - LASSERT(result != -ENOSYS); - if (result == 0) { - LASSERT(lock->cll_state != CLS_INTRANSIT); - cl_lock_state_set(env, lock, CLS_HELD); - } - } while (result == CLO_REPEAT); return result; } -EXPORT_SYMBOL(cl_wait_try); +EXPORT_SYMBOL(cl_lock_init); /** - * Waits until enqueued lock is granted. - * - * \pre current thread or io owns a hold on the lock - * \pre ergo(result == 0, lock->cll_state == CLS_ENQUEUED || - * lock->cll_state == CLS_HELD) + * Returns a slice with a lock, corresponding to the given layer in the + * device stack. * - * \post ergo(result == 0, lock->cll_state == CLS_HELD) - */ -int cl_wait(const struct lu_env *env, struct cl_lock *lock) -{ - int result; - - cl_lock_mutex_get(env, lock); - - LINVRNT(cl_lock_invariant(env, lock)); - LASSERTF(lock->cll_state == CLS_ENQUEUED || lock->cll_state == CLS_HELD, - "Wrong state %d\n", lock->cll_state); - LASSERT(lock->cll_holds > 0); - - do { - result = cl_wait_try(env, lock); - if (result == CLO_WAIT) { - result = cl_lock_state_wait(env, lock); - if (result == 0) - continue; - } - break; - } while (1); - if (result < 0) { - cl_unuse_try(env, lock); - cl_lock_lockdep_release(env, lock); - } - cl_lock_trace(D_DLMTRACE, env, "wait lock", lock); - cl_lock_mutex_put(env, lock); - LASSERT(ergo(result == 0, lock->cll_state == CLS_HELD)); - return result; -} -EXPORT_SYMBOL(cl_wait); - -/** - * Executes cl_lock_operations::clo_weigh(), and sums results to estimate lock - * value. + * \see cl_page_at() */ -unsigned long cl_lock_weigh(const struct lu_env *env, struct cl_lock *lock) +const struct cl_lock_slice *cl_lock_at(const struct cl_lock *lock, + const struct lu_device_type *dtype) { const struct cl_lock_slice *slice; - unsigned long pound; - unsigned long ounce; - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - - pound = 0; - list_for_each_entry_reverse(slice, &lock->cll_layers, cls_linkage) { - if (slice->cls_ops->clo_weigh) { - ounce = slice->cls_ops->clo_weigh(env, slice); - pound += ounce; - if (pound < ounce) /* over-weight^Wflow */ - pound = ~0UL; - } + list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { + if (slice->cls_obj->co_lu.lo_dev->ld_type == dtype) + return slice; } - return pound; + return NULL; } -EXPORT_SYMBOL(cl_lock_weigh); +EXPORT_SYMBOL(cl_lock_at); -/** - * Notifies layers that lock description changed. - * - * The server can grant client a lock different from one that was requested - * (e.g., larger in extent). This method is called when actually granted lock - * description becomes known to let layers to accommodate for changed lock - * description. - * - * \see cl_lock_operations::clo_modify() - */ -int cl_lock_modify(const struct lu_env *env, struct cl_lock *lock, - const struct cl_lock_descr *desc) +void cl_lock_cancel(const struct lu_env *env, struct cl_lock *lock) { const struct cl_lock_slice *slice; - struct cl_object *obj = lock->cll_descr.cld_obj; - struct cl_object_header *hdr = cl_object_header(obj); - int result; - - cl_lock_trace(D_DLMTRACE, env, "modify lock", lock); - /* don't allow object to change */ - LASSERT(obj == desc->cld_obj); - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); + cl_lock_trace(D_DLMTRACE, env, "cancel lock", lock); list_for_each_entry_reverse(slice, &lock->cll_layers, cls_linkage) { - if (slice->cls_ops->clo_modify) { - result = slice->cls_ops->clo_modify(env, slice, desc); - if (result != 0) - return result; - } - } - CL_LOCK_DEBUG(D_DLMTRACE, env, lock, " -> "DDESCR"@"DFID"\n", - PDESCR(desc), PFID(lu_object_fid(&desc->cld_obj->co_lu))); - /* - * Just replace description in place. Nothing more is needed for - * now. If locks were indexed according to their extent and/or mode, - * that index would have to be updated here. - */ - spin_lock(&hdr->coh_lock_guard); - lock->cll_descr = *desc; - spin_unlock(&hdr->coh_lock_guard); - return 0; -} -EXPORT_SYMBOL(cl_lock_modify); - -/** - * Initializes lock closure with a given origin. - * - * \see cl_lock_closure - */ -void cl_lock_closure_init(const struct lu_env *env, - struct cl_lock_closure *closure, - struct cl_lock *origin, int wait) -{ - LINVRNT(cl_lock_is_mutexed(origin)); - LINVRNT(cl_lock_invariant(env, origin)); - - INIT_LIST_HEAD(&closure->clc_list); - closure->clc_origin = origin; - closure->clc_wait = wait; - closure->clc_nr = 0; -} -EXPORT_SYMBOL(cl_lock_closure_init); - -/** - * Builds a closure of \a lock. - * - * Building of a closure consists of adding initial lock (\a lock) into it, - * and calling cl_lock_operations::clo_closure() methods of \a lock. These - * methods might call cl_lock_closure_build() recursively again, adding more - * locks to the closure, etc. - * - * \see cl_lock_closure - */ -int cl_lock_closure_build(const struct lu_env *env, struct cl_lock *lock, - struct cl_lock_closure *closure) -{ - const struct cl_lock_slice *slice; - int result; - - LINVRNT(cl_lock_is_mutexed(closure->clc_origin)); - LINVRNT(cl_lock_invariant(env, closure->clc_origin)); - - result = cl_lock_enclosure(env, lock, closure); - if (result == 0) { - list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { - if (slice->cls_ops->clo_closure) { - result = slice->cls_ops->clo_closure(env, slice, - closure); - if (result != 0) - break; - } - } - } - if (result != 0) - cl_lock_disclosure(env, closure); - return result; -} -EXPORT_SYMBOL(cl_lock_closure_build); - -/** - * Adds new lock to a closure. - * - * Try-locks \a lock and if succeeded, adds it to the closure (never more than - * once). If try-lock failed, returns CLO_REPEAT, after optionally waiting - * until next try-lock is likely to succeed. - */ -int cl_lock_enclosure(const struct lu_env *env, struct cl_lock *lock, - struct cl_lock_closure *closure) -{ - int result = 0; - - cl_lock_trace(D_DLMTRACE, env, "enclosure lock", lock); - if (!cl_lock_mutex_try(env, lock)) { - /* - * If lock->cll_inclosure is not empty, lock is already in - * this closure. - */ - if (list_empty(&lock->cll_inclosure)) { - cl_lock_get_trust(lock); - lu_ref_add(&lock->cll_reference, "closure", closure); - list_add(&lock->cll_inclosure, &closure->clc_list); - closure->clc_nr++; - } else - cl_lock_mutex_put(env, lock); - result = 0; - } else { - cl_lock_disclosure(env, closure); - if (closure->clc_wait) { - cl_lock_get_trust(lock); - lu_ref_add(&lock->cll_reference, "closure-w", closure); - cl_lock_mutex_put(env, closure->clc_origin); - - LASSERT(cl_lock_nr_mutexed(env) == 0); - cl_lock_mutex_get(env, lock); - cl_lock_mutex_put(env, lock); - - cl_lock_mutex_get(env, closure->clc_origin); - lu_ref_del(&lock->cll_reference, "closure-w", closure); - cl_lock_put(env, lock); - } - result = CLO_REPEAT; - } - return result; -} -EXPORT_SYMBOL(cl_lock_enclosure); - -/** Releases mutices of enclosed locks. */ -void cl_lock_disclosure(const struct lu_env *env, - struct cl_lock_closure *closure) -{ - struct cl_lock *scan; - struct cl_lock *temp; - - cl_lock_trace(D_DLMTRACE, env, "disclosure lock", closure->clc_origin); - list_for_each_entry_safe(scan, temp, &closure->clc_list, - cll_inclosure) { - list_del_init(&scan->cll_inclosure); - cl_lock_mutex_put(env, scan); - lu_ref_del(&scan->cll_reference, "closure", closure); - cl_lock_put(env, scan); - closure->clc_nr--; - } - LASSERT(closure->clc_nr == 0); -} -EXPORT_SYMBOL(cl_lock_disclosure); - -/** Finalizes a closure. */ -void cl_lock_closure_fini(struct cl_lock_closure *closure) -{ - LASSERT(closure->clc_nr == 0); - LASSERT(list_empty(&closure->clc_list)); -} -EXPORT_SYMBOL(cl_lock_closure_fini); - -/** - * Destroys this lock. Notifies layers (bottom-to-top) that lock is being - * destroyed, then destroy the lock. If there are holds on the lock, postpone - * destruction until all holds are released. This is called when a decision is - * made to destroy the lock in the future. E.g., when a blocking AST is - * received on it, or fatal communication error happens. - * - * Caller must have a reference on this lock to prevent a situation, when - * deleted lock lingers in memory for indefinite time, because nobody calls - * cl_lock_put() to finish it. - * - * \pre atomic_read(&lock->cll_ref) > 0 - * \pre ergo(cl_lock_nesting(lock) == CNL_TOP, - * cl_lock_nr_mutexed(env) == 1) - * [i.e., if a top-lock is deleted, mutices of no other locks can be - * held, as deletion of sub-locks might require releasing a top-lock - * mutex] - * - * \see cl_lock_operations::clo_delete() - * \see cl_lock::cll_holds - */ -void cl_lock_delete(const struct lu_env *env, struct cl_lock *lock) -{ - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - LASSERT(ergo(cl_lock_nesting(lock) == CNL_TOP, - cl_lock_nr_mutexed(env) == 1)); - - cl_lock_trace(D_DLMTRACE, env, "delete lock", lock); - if (lock->cll_holds == 0) - cl_lock_delete0(env, lock); - else - lock->cll_flags |= CLF_DOOMED; -} -EXPORT_SYMBOL(cl_lock_delete); - -/** - * Mark lock as irrecoverably failed, and mark it for destruction. This - * happens when, e.g., server fails to grant a lock to us, or networking - * time-out happens. - * - * \pre atomic_read(&lock->cll_ref) > 0 - * - * \see clo_lock_delete() - * \see cl_lock::cll_holds - */ -void cl_lock_error(const struct lu_env *env, struct cl_lock *lock, int error) -{ - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - - if (lock->cll_error == 0 && error != 0) { - cl_lock_trace(D_DLMTRACE, env, "set lock error", lock); - lock->cll_error = error; - cl_lock_signal(env, lock); - cl_lock_cancel(env, lock); - cl_lock_delete(env, lock); + if (slice->cls_ops->clo_cancel) + slice->cls_ops->clo_cancel(env, slice); } } -EXPORT_SYMBOL(cl_lock_error); - -/** - * Cancels this lock. Notifies layers - * (bottom-to-top) that lock is being cancelled, then destroy the lock. If - * there are holds on the lock, postpone cancellation until - * all holds are released. - * - * Cancellation notification is delivered to layers at most once. - * - * \see cl_lock_operations::clo_cancel() - * \see cl_lock::cll_holds - */ -void cl_lock_cancel(const struct lu_env *env, struct cl_lock *lock) -{ - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - - cl_lock_trace(D_DLMTRACE, env, "cancel lock", lock); - if (lock->cll_holds == 0) - cl_lock_cancel0(env, lock); - else - lock->cll_flags |= CLF_CANCELPEND; -} EXPORT_SYMBOL(cl_lock_cancel); /** - * Finds an existing lock covering given index and optionally different from a - * given \a except lock. + * Enqueue a lock. + * \param anchor: if we need to wait for resources before getting the lock, + * use @anchor for the purpose. + * \retval 0 enqueue successfully + * \retval <0 error code */ -struct cl_lock *cl_lock_at_pgoff(const struct lu_env *env, - struct cl_object *obj, pgoff_t index, - struct cl_lock *except, - int pending, int canceld) +int cl_lock_enqueue(const struct lu_env *env, struct cl_io *io, + struct cl_lock *lock, struct cl_sync_io *anchor) { - struct cl_object_header *head; - struct cl_lock *scan; - struct cl_lock *lock; - struct cl_lock_descr *need; - - head = cl_object_header(obj); - need = &cl_env_info(env)->clt_descr; - lock = NULL; + const struct cl_lock_slice *slice; + int rc = -ENOSYS; - need->cld_mode = CLM_READ; /* CLM_READ matches both READ & WRITE, but - * not PHANTOM - */ - need->cld_start = need->cld_end = index; - need->cld_enq_flags = 0; + list_for_each_entry(slice, &lock->cll_layers, cls_linkage) { + if (!slice->cls_ops->clo_enqueue) + continue; - spin_lock(&head->coh_lock_guard); - /* It is fine to match any group lock since there could be only one - * with a uniq gid and it conflicts with all other lock modes too - */ - list_for_each_entry(scan, &head->coh_locks, cll_linkage) { - if (scan != except && - (scan->cll_descr.cld_mode == CLM_GROUP || - cl_lock_ext_match(&scan->cll_descr, need)) && - scan->cll_state >= CLS_HELD && - scan->cll_state < CLS_FREEING && - /* - * This check is racy as the lock can be canceled right - * after it is done, but this is fine, because page exists - * already. - */ - (canceld || !(scan->cll_flags & CLF_CANCELLED)) && - (pending || !(scan->cll_flags & CLF_CANCELPEND))) { - /* Don't increase cs_hit here since this - * is just a helper function. - */ - cl_lock_get_trust(scan); - lock = scan; + rc = slice->cls_ops->clo_enqueue(env, slice, io, anchor); + if (rc != 0) break; } - } - spin_unlock(&head->coh_lock_guard); - return lock; + return rc; } -EXPORT_SYMBOL(cl_lock_at_pgoff); +EXPORT_SYMBOL(cl_lock_enqueue); /** - * Eliminate all locks for a given object. - * - * Caller has to guarantee that no lock is in active use. - * - * \param cancel when this is set, cl_locks_prune() cancels locks before - * destroying. + * Main high-level entry point of cl_lock interface that finds existing or + * enqueues new lock matching given description. */ -void cl_locks_prune(const struct lu_env *env, struct cl_object *obj, int cancel) +int cl_lock_request(const struct lu_env *env, struct cl_io *io, + struct cl_lock *lock) { - struct cl_object_header *head; - struct cl_lock *lock; - - head = cl_object_header(obj); - - spin_lock(&head->coh_lock_guard); - while (!list_empty(&head->coh_locks)) { - lock = container_of(head->coh_locks.next, - struct cl_lock, cll_linkage); - cl_lock_get_trust(lock); - spin_unlock(&head->coh_lock_guard); - lu_ref_add(&lock->cll_reference, "prune", current); - -again: - cl_lock_mutex_get(env, lock); - if (lock->cll_state < CLS_FREEING) { - LASSERT(lock->cll_users <= 1); - if (unlikely(lock->cll_users == 1)) { - struct l_wait_info lwi = { 0 }; - - cl_lock_mutex_put(env, lock); - l_wait_event(lock->cll_wq, - lock->cll_users == 0, - &lwi); - goto again; - } - - if (cancel) - cl_lock_cancel(env, lock); - cl_lock_delete(env, lock); - } - cl_lock_mutex_put(env, lock); - lu_ref_del(&lock->cll_reference, "prune", current); - cl_lock_put(env, lock); - spin_lock(&head->coh_lock_guard); - } - spin_unlock(&head->coh_lock_guard); -} -EXPORT_SYMBOL(cl_locks_prune); + struct cl_sync_io *anchor = NULL; + __u32 enq_flags = lock->cll_descr.cld_enq_flags; + int rc; -static struct cl_lock *cl_lock_hold_mutex(const struct lu_env *env, - const struct cl_io *io, - const struct cl_lock_descr *need, - const char *scope, const void *source) -{ - struct cl_lock *lock; + rc = cl_lock_init(env, lock, io); + if (rc < 0) + return rc; - while (1) { - lock = cl_lock_find(env, io, need); - if (IS_ERR(lock)) - break; - cl_lock_mutex_get(env, lock); - if (lock->cll_state < CLS_FREEING && - !(lock->cll_flags & CLF_CANCELLED)) { - cl_lock_hold_mod(env, lock, 1); - lu_ref_add(&lock->cll_holders, scope, source); - lu_ref_add(&lock->cll_reference, scope, source); - break; - } - cl_lock_mutex_put(env, lock); - cl_lock_put(env, lock); + if ((enq_flags & CEF_ASYNC) && !(enq_flags & CEF_AGL)) { + anchor = &cl_env_info(env)->clt_anchor; + cl_sync_io_init(anchor, 1, cl_sync_io_end); } - return lock; -} -/** - * Returns a lock matching \a need description with a reference and a hold on - * it. - * - * This is much like cl_lock_find(), except that cl_lock_hold() additionally - * guarantees that lock is not in the CLS_FREEING state on return. - */ -struct cl_lock *cl_lock_hold(const struct lu_env *env, const struct cl_io *io, - const struct cl_lock_descr *need, - const char *scope, const void *source) -{ - struct cl_lock *lock; + rc = cl_lock_enqueue(env, io, lock, anchor); - lock = cl_lock_hold_mutex(env, io, need, scope, source); - if (!IS_ERR(lock)) - cl_lock_mutex_put(env, lock); - return lock; -} -EXPORT_SYMBOL(cl_lock_hold); + if (anchor) { + int rc2; -/** - * Main high-level entry point of cl_lock interface that finds existing or - * enqueues new lock matching given description. - */ -struct cl_lock *cl_lock_request(const struct lu_env *env, struct cl_io *io, - const struct cl_lock_descr *need, - const char *scope, const void *source) -{ - struct cl_lock *lock; - int rc; - __u32 enqflags = need->cld_enq_flags; + /* drop the reference count held at initialization time */ + cl_sync_io_note(env, anchor, 0); + rc2 = cl_sync_io_wait(env, anchor, 0); + if (rc2 < 0 && rc == 0) + rc = rc2; + } - do { - lock = cl_lock_hold_mutex(env, io, need, scope, source); - if (IS_ERR(lock)) - break; + if (rc < 0) + cl_lock_release(env, lock); - rc = cl_enqueue_locked(env, lock, io, enqflags); - if (rc == 0) { - if (cl_lock_fits_into(env, lock, need, io)) { - if (!(enqflags & CEF_AGL)) { - cl_lock_mutex_put(env, lock); - cl_lock_lockdep_acquire(env, lock, - enqflags); - break; - } - rc = 1; - } - cl_unuse_locked(env, lock); - } - cl_lock_trace(D_DLMTRACE, env, - rc <= 0 ? "enqueue failed" : "agl succeed", lock); - cl_lock_hold_release(env, lock, scope, source); - cl_lock_mutex_put(env, lock); - lu_ref_del(&lock->cll_reference, scope, source); - cl_lock_put(env, lock); - if (rc > 0) { - LASSERT(enqflags & CEF_AGL); - lock = NULL; - } else if (rc != 0) { - lock = ERR_PTR(rc); - } - } while (rc == 0); - return lock; + return rc; } EXPORT_SYMBOL(cl_lock_request); /** - * Adds a hold to a known lock. - */ -void cl_lock_hold_add(const struct lu_env *env, struct cl_lock *lock, - const char *scope, const void *source) -{ - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - LASSERT(lock->cll_state != CLS_FREEING); - - cl_lock_get(lock); - cl_lock_hold_mod(env, lock, 1); - lu_ref_add(&lock->cll_holders, scope, source); - lu_ref_add(&lock->cll_reference, scope, source); -} -EXPORT_SYMBOL(cl_lock_hold_add); - -/** - * Releases a hold and a reference on a lock, on which caller acquired a - * mutex. - */ -void cl_lock_unhold(const struct lu_env *env, struct cl_lock *lock, - const char *scope, const void *source) -{ - LINVRNT(cl_lock_invariant(env, lock)); - cl_lock_hold_release(env, lock, scope, source); - lu_ref_del(&lock->cll_reference, scope, source); - cl_lock_put(env, lock); -} -EXPORT_SYMBOL(cl_lock_unhold); - -/** * Releases a hold and a reference on a lock, obtained by cl_lock_hold(). */ -void cl_lock_release(const struct lu_env *env, struct cl_lock *lock, - const char *scope, const void *source) +void cl_lock_release(const struct lu_env *env, struct cl_lock *lock) { - LINVRNT(cl_lock_invariant(env, lock)); cl_lock_trace(D_DLMTRACE, env, "release lock", lock); - cl_lock_mutex_get(env, lock); - cl_lock_hold_release(env, lock, scope, source); - cl_lock_mutex_put(env, lock); - lu_ref_del(&lock->cll_reference, scope, source); - cl_lock_put(env, lock); + cl_lock_cancel(env, lock); + cl_lock_fini(env, lock); } EXPORT_SYMBOL(cl_lock_release); -void cl_lock_user_add(const struct lu_env *env, struct cl_lock *lock) -{ - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - - cl_lock_used_mod(env, lock, 1); -} -EXPORT_SYMBOL(cl_lock_user_add); - -void cl_lock_user_del(const struct lu_env *env, struct cl_lock *lock) -{ - LINVRNT(cl_lock_is_mutexed(lock)); - LINVRNT(cl_lock_invariant(env, lock)); - LASSERT(lock->cll_users > 0); - - cl_lock_used_mod(env, lock, -1); - if (lock->cll_users == 0) - wake_up_all(&lock->cll_wq); -} -EXPORT_SYMBOL(cl_lock_user_del); - const char *cl_lock_mode_name(const enum cl_lock_mode mode) { static const char *names[] = { - [CLM_PHANTOM] = "P", [CLM_READ] = "R", [CLM_WRITE] = "W", [CLM_GROUP] = "G" @@ -2061,10 +261,8 @@ void cl_lock_print(const struct lu_env *env, void *cookie, lu_printer_t printer, const struct cl_lock *lock) { const struct cl_lock_slice *slice; - (*printer)(env, cookie, "lock@%p[%d %d %d %d %d %08lx] ", - lock, atomic_read(&lock->cll_ref), - lock->cll_state, lock->cll_error, lock->cll_holds, - lock->cll_users, lock->cll_flags); + + (*printer)(env, cookie, "lock@%p", lock); cl_lock_descr_print(env, cookie, printer, &lock->cll_descr); (*printer)(env, cookie, " {\n"); @@ -2079,13 +277,3 @@ void cl_lock_print(const struct lu_env *env, void *cookie, (*printer)(env, cookie, "} lock@%p\n", lock); } EXPORT_SYMBOL(cl_lock_print); - -int cl_lock_init(void) -{ - return lu_kmem_init(cl_lock_caches); -} - -void cl_lock_fini(void) -{ - lu_kmem_fini(cl_lock_caches); -} diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c index 72e6333..395b92c 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c @@ -44,7 +44,6 @@ * * i_mutex * PG_locked - * ->coh_lock_guard * ->coh_attr_guard * ->ls_guard */ @@ -63,8 +62,6 @@ static struct kmem_cache *cl_env_kmem; -/** Lock class of cl_object_header::coh_lock_guard */ -static struct lock_class_key cl_lock_guard_class; /** Lock class of cl_object_header::coh_attr_guard */ static struct lock_class_key cl_attr_guard_class; @@ -79,11 +76,8 @@ int cl_object_header_init(struct cl_object_header *h) result = lu_object_header_init(&h->coh_lu); if (result == 0) { - spin_lock_init(&h->coh_lock_guard); spin_lock_init(&h->coh_attr_guard); - lockdep_set_class(&h->coh_lock_guard, &cl_lock_guard_class); lockdep_set_class(&h->coh_attr_guard, &cl_attr_guard_class); - INIT_LIST_HEAD(&h->coh_locks); h->coh_page_bufsize = 0; } return result; @@ -310,7 +304,7 @@ EXPORT_SYMBOL(cl_conf_set); /** * Prunes caches of pages and locks for this object. */ -void cl_object_prune(const struct lu_env *env, struct cl_object *obj) +int cl_object_prune(const struct lu_env *env, struct cl_object *obj) { struct lu_object_header *top; struct cl_object *o; @@ -326,10 +320,7 @@ void cl_object_prune(const struct lu_env *env, struct cl_object *obj) } } - /* TODO: pruning locks will be moved into layers after cl_lock - * simplification is done - */ - cl_locks_prune(env, obj, 1); + return result; } EXPORT_SYMBOL(cl_object_prune); @@ -342,19 +333,9 @@ EXPORT_SYMBOL(cl_object_prune); */ void cl_object_kill(const struct lu_env *env, struct cl_object *obj) { - struct cl_object_header *hdr; - - hdr = cl_object_header(obj); + struct cl_object_header *hdr = cl_object_header(obj); set_bit(LU_OBJECT_HEARD_BANSHEE, &hdr->coh_lu.loh_flags); - /* - * Destroy all locks. Object destruction (including cl_inode_fini()) - * cannot cancel the locks, because in the case of a local client, - * where client and server share the same thread running - * prune_icache(), this can dead-lock with ldlm_cancel_handler() - * waiting on __wait_on_freeing_inode(). - */ - cl_locks_prune(env, obj, 0); } EXPORT_SYMBOL(cl_object_kill); @@ -406,11 +387,8 @@ int cl_site_init(struct cl_site *s, struct cl_device *d) result = lu_site_init(&s->cs_lu, &d->cd_lu_dev); if (result == 0) { cache_stats_init(&s->cs_pages, "pages"); - cache_stats_init(&s->cs_locks, "locks"); for (i = 0; i < ARRAY_SIZE(s->cs_pages_state); ++i) atomic_set(&s->cs_pages_state[0], 0); - for (i = 0; i < ARRAY_SIZE(s->cs_locks_state); ++i) - atomic_set(&s->cs_locks_state[i], 0); cl_env_percpu_refill(); } return result; @@ -445,15 +423,6 @@ int cl_site_stats_print(const struct cl_site *site, struct seq_file *m) [CPS_PAGEIN] = "r", [CPS_FREEING] = "f" }; - static const char *lstate[] = { - [CLS_NEW] = "n", - [CLS_QUEUING] = "q", - [CLS_ENQUEUED] = "e", - [CLS_HELD] = "h", - [CLS_INTRANSIT] = "t", - [CLS_CACHED] = "c", - [CLS_FREEING] = "f" - }; /* lookup hit total busy create pages: ...... ...... ...... ...... ...... [...... ...... ...... ......] @@ -467,12 +436,6 @@ locks: ...... ...... ...... ...... ...... [...... ...... ...... ...... ......] seq_printf(m, "%s: %u ", pstate[i], atomic_read(&site->cs_pages_state[i])); seq_printf(m, "]\n"); - cache_stats_print(&site->cs_locks, m, 0); - seq_printf(m, " ["); - for (i = 0; i < ARRAY_SIZE(site->cs_locks_state); ++i) - seq_printf(m, "%s: %u ", lstate[i], - atomic_read(&site->cs_locks_state[i])); - seq_printf(m, "]\n"); cache_stats_print(&cl_env_stats, m, 0); seq_printf(m, "\n"); return 0; @@ -1147,12 +1110,6 @@ void cl_stack_fini(const struct lu_env *env, struct cl_device *cl) } EXPORT_SYMBOL(cl_stack_fini); -int cl_lock_init(void); -void cl_lock_fini(void); - -int cl_page_init(void); -void cl_page_fini(void); - static struct lu_context_key cl_key; struct cl_thread_info *cl_env_info(const struct lu_env *env) @@ -1247,22 +1204,13 @@ int cl_global_init(void) if (result) goto out_kmem; - result = cl_lock_init(); - if (result) - goto out_context; - - result = cl_page_init(); - if (result) - goto out_lock; - result = cl_env_percpu_init(); if (result) /* no cl_env_percpu_fini on error */ - goto out_lock; + goto out_context; return 0; -out_lock: - cl_lock_fini(); + out_context: lu_context_key_degister(&cl_key); out_kmem: @@ -1278,8 +1226,6 @@ out_store: void cl_global_fini(void) { cl_env_percpu_fini(); - cl_lock_fini(); - cl_page_fini(); lu_context_key_degister(&cl_key); lu_kmem_fini(cl_object_caches); cl_env_store_fini(); diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c index ad7f0ae..8df39ce 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c @@ -1075,12 +1075,3 @@ void cl_page_slice_add(struct cl_page *page, struct cl_page_slice *slice, slice->cpl_page = page; } EXPORT_SYMBOL(cl_page_slice_add); - -int cl_page_init(void) -{ - return 0; -} - -void cl_page_fini(void) -{ -} diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c index 0d84d04..a752bb4 100644 --- a/drivers/staging/lustre/lustre/obdecho/echo_client.c +++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c @@ -171,7 +171,7 @@ struct echo_thread_info { struct cl_2queue eti_queue; struct cl_io eti_io; - struct cl_lock_descr eti_descr; + struct cl_lock eti_lock; struct lu_fid eti_fid; struct lu_fid eti_fid2; }; @@ -327,26 +327,8 @@ static void echo_lock_fini(const struct lu_env *env, kmem_cache_free(echo_lock_kmem, ecl); } -static void echo_lock_delete(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct echo_lock *ecl = cl2echo_lock(slice); - - LASSERT(list_empty(&ecl->el_chain)); -} - -static int echo_lock_fits_into(const struct lu_env *env, - const struct cl_lock_slice *slice, - const struct cl_lock_descr *need, - const struct cl_io *unused) -{ - return 1; -} - static struct cl_lock_operations echo_lock_ops = { .clo_fini = echo_lock_fini, - .clo_delete = echo_lock_delete, - .clo_fits_into = echo_lock_fits_into }; /** @} echo_lock */ @@ -811,16 +793,7 @@ static void echo_lock_release(const struct lu_env *env, { struct cl_lock *clk = echo_lock2cl(ecl); - cl_lock_get(clk); - cl_unuse(env, clk); - cl_lock_release(env, clk, "ec enqueue", ecl->el_object); - if (!still_used) { - cl_lock_mutex_get(env, clk); - cl_lock_cancel(env, clk); - cl_lock_delete(env, clk); - cl_lock_mutex_put(env, clk); - } - cl_lock_put(env, clk); + cl_lock_release(env, clk); } static struct lu_device *echo_device_free(const struct lu_env *env, @@ -1014,9 +987,11 @@ static int cl_echo_enqueue0(struct lu_env *env, struct echo_object *eco, info = echo_env_info(env); io = &info->eti_io; - descr = &info->eti_descr; + lck = &info->eti_lock; obj = echo_obj2cl(eco); + memset(lck, 0, sizeof(*lck)); + descr = &lck->cll_descr; descr->cld_obj = obj; descr->cld_start = cl_index(obj, start); descr->cld_end = cl_index(obj, end); @@ -1024,25 +999,20 @@ static int cl_echo_enqueue0(struct lu_env *env, struct echo_object *eco, descr->cld_enq_flags = enqflags; io->ci_obj = obj; - lck = cl_lock_request(env, io, descr, "ec enqueue", eco); - if (lck) { + rc = cl_lock_request(env, io, lck); + if (rc == 0) { struct echo_client_obd *ec = eco->eo_dev->ed_ec; struct echo_lock *el; - rc = cl_wait(env, lck); - if (rc == 0) { - el = cl2echo_lock(cl_lock_at(lck, &echo_device_type)); - spin_lock(&ec->ec_lock); - if (list_empty(&el->el_chain)) { - list_add(&el->el_chain, &ec->ec_locks); - el->el_cookie = ++ec->ec_unique; - } - atomic_inc(&el->el_refcount); - *cookie = el->el_cookie; - spin_unlock(&ec->ec_lock); - } else { - cl_lock_release(env, lck, "ec enqueue", current); + el = cl2echo_lock(cl_lock_at(lck, &echo_device_type)); + spin_lock(&ec->ec_lock); + if (list_empty(&el->el_chain)) { + list_add(&el->el_chain, &ec->ec_locks); + el->el_cookie = ++ec->ec_unique; } + atomic_inc(&el->el_refcount); + *cookie = el->el_cookie; + spin_unlock(&ec->ec_lock); } return rc; } diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index c510659..d01f2a2 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -76,6 +76,8 @@ static inline char *ext_flags(struct osc_extent *ext, char *flags) *buf++ = ext->oe_rw ? 'r' : 'w'; if (ext->oe_intree) *buf++ = 'i'; + if (ext->oe_sync) + *buf++ = 'S'; if (ext->oe_srvlock) *buf++ = 's'; if (ext->oe_hp) @@ -121,9 +123,13 @@ static const char *oes_strings[] = { __ext->oe_grants, __ext->oe_nr_pages, \ list_empty_marker(&__ext->oe_pages), \ waitqueue_active(&__ext->oe_waitq) ? '+' : '-', \ - __ext->oe_osclock, __ext->oe_mppr, __ext->oe_owner, \ + __ext->oe_dlmlock, __ext->oe_mppr, __ext->oe_owner, \ /* ----- part 4 ----- */ \ ## __VA_ARGS__); \ + if (lvl == D_ERROR && __ext->oe_dlmlock) \ + LDLM_ERROR(__ext->oe_dlmlock, "extent: %p\n", __ext); \ + else \ + LDLM_DEBUG(__ext->oe_dlmlock, "extent: %p\n", __ext); \ } while (0) #undef EASSERTF @@ -240,20 +246,25 @@ static int osc_extent_sanity_check0(struct osc_extent *ext, goto out; } - if (!ext->oe_osclock && ext->oe_grants > 0) { + if (ext->oe_sync && ext->oe_grants > 0) { rc = 90; goto out; } - if (ext->oe_osclock) { - struct cl_lock_descr *descr; + if (ext->oe_dlmlock) { + struct ldlm_extent *extent; - descr = &ext->oe_osclock->cll_descr; - if (!(descr->cld_start <= ext->oe_start && - descr->cld_end >= ext->oe_max_end)) { + extent = &ext->oe_dlmlock->l_policy_data.l_extent; + if (!(extent->start <= cl_offset(osc2cl(obj), ext->oe_start) && + extent->end >= cl_offset(osc2cl(obj), ext->oe_max_end))) { rc = 100; goto out; } + + if (!(ext->oe_dlmlock->l_granted_mode & (LCK_PW | LCK_GROUP))) { + rc = 102; + goto out; + } } if (ext->oe_nr_pages > ext->oe_mppr) { @@ -359,7 +370,7 @@ static struct osc_extent *osc_extent_alloc(struct osc_object *obj) ext->oe_state = OES_INV; INIT_LIST_HEAD(&ext->oe_pages); init_waitqueue_head(&ext->oe_waitq); - ext->oe_osclock = NULL; + ext->oe_dlmlock = NULL; return ext; } @@ -385,9 +396,11 @@ static void osc_extent_put(const struct lu_env *env, struct osc_extent *ext) LASSERT(ext->oe_state == OES_INV); LASSERT(!ext->oe_intree); - if (ext->oe_osclock) { - cl_lock_put(env, ext->oe_osclock); - ext->oe_osclock = NULL; + if (ext->oe_dlmlock) { + lu_ref_add(&ext->oe_dlmlock->l_reference, + "osc_extent", ext); + LDLM_LOCK_PUT(ext->oe_dlmlock); + ext->oe_dlmlock = NULL; } osc_extent_free(ext); } @@ -543,7 +556,7 @@ static int osc_extent_merge(const struct lu_env *env, struct osc_extent *cur, if (cur->oe_max_end != victim->oe_max_end) return -ERANGE; - LASSERT(cur->oe_osclock == victim->oe_osclock); + LASSERT(cur->oe_dlmlock == victim->oe_dlmlock); ppc_bits = osc_cli(obj)->cl_chunkbits - PAGE_CACHE_SHIFT; chunk_start = cur->oe_start >> ppc_bits; chunk_end = cur->oe_end >> ppc_bits; @@ -624,10 +637,10 @@ static inline int overlapped(struct osc_extent *ex1, struct osc_extent *ex2) static struct osc_extent *osc_extent_find(const struct lu_env *env, struct osc_object *obj, pgoff_t index, int *grants) - { struct client_obd *cli = osc_cli(obj); - struct cl_lock *lock; + struct osc_lock *olck; + struct cl_lock_descr *descr; struct osc_extent *cur; struct osc_extent *ext; struct osc_extent *conflict = NULL; @@ -644,8 +657,12 @@ static struct osc_extent *osc_extent_find(const struct lu_env *env, if (!cur) return ERR_PTR(-ENOMEM); - lock = cl_lock_at_pgoff(env, osc2cl(obj), index, NULL, 1, 0); - LASSERT(lock->cll_descr.cld_mode >= CLM_WRITE); + olck = osc_env_io(env)->oi_write_osclock; + LASSERTF(olck, "page %lu is not covered by lock\n", index); + LASSERT(olck->ols_state == OLS_GRANTED); + + descr = &olck->ols_cl.cls_lock->cll_descr; + LASSERT(descr->cld_mode >= CLM_WRITE); LASSERT(cli->cl_chunkbits >= PAGE_CACHE_SHIFT); ppc_bits = cli->cl_chunkbits - PAGE_CACHE_SHIFT; @@ -657,19 +674,23 @@ static struct osc_extent *osc_extent_find(const struct lu_env *env, max_pages = cli->cl_max_pages_per_rpc; LASSERT((max_pages & ~chunk_mask) == 0); max_end = index - (index % max_pages) + max_pages - 1; - max_end = min_t(pgoff_t, max_end, lock->cll_descr.cld_end); + max_end = min_t(pgoff_t, max_end, descr->cld_end); /* initialize new extent by parameters so far */ cur->oe_max_end = max_end; cur->oe_start = index & chunk_mask; cur->oe_end = ((index + ~chunk_mask + 1) & chunk_mask) - 1; - if (cur->oe_start < lock->cll_descr.cld_start) - cur->oe_start = lock->cll_descr.cld_start; + if (cur->oe_start < descr->cld_start) + cur->oe_start = descr->cld_start; if (cur->oe_end > max_end) cur->oe_end = max_end; - cur->oe_osclock = lock; cur->oe_grants = 0; cur->oe_mppr = max_pages; + if (olck->ols_dlmlock) { + LASSERT(olck->ols_hold); + cur->oe_dlmlock = LDLM_LOCK_GET(olck->ols_dlmlock); + lu_ref_add(&olck->ols_dlmlock->l_reference, "osc_extent", cur); + } /* grants has been allocated by caller */ LASSERTF(*grants >= chunksize + cli->cl_extent_tax, @@ -691,7 +712,7 @@ restart: break; /* if covering by different locks, no chance to match */ - if (lock != ext->oe_osclock) { + if (olck->ols_dlmlock != ext->oe_dlmlock) { EASSERTF(!overlapped(ext, cur), ext, EXTSTR"\n", EXTPARA(cur)); @@ -795,7 +816,7 @@ restart: if (found) { LASSERT(!conflict); if (!IS_ERR(found)) { - LASSERT(found->oe_osclock == cur->oe_osclock); + LASSERT(found->oe_dlmlock == cur->oe_dlmlock); OSC_EXTENT_DUMP(D_CACHE, found, "found caching ext for %lu.\n", index); } @@ -810,7 +831,7 @@ restart: found = osc_extent_hold(cur); osc_extent_insert(obj, cur); OSC_EXTENT_DUMP(D_CACHE, cur, "add into tree %lu/%lu.\n", - index, lock->cll_descr.cld_end); + index, descr->cld_end); } osc_object_unlock(obj); @@ -2630,6 +2651,7 @@ int osc_queue_sync_pages(const struct lu_env *env, struct osc_object *obj, } ext->oe_rw = !!(cmd & OBD_BRW_READ); + ext->oe_sync = 1; ext->oe_urgent = 1; ext->oe_start = start; ext->oe_end = ext->oe_max_end = end; @@ -3087,27 +3109,27 @@ static int check_and_discard_cb(const struct lu_env *env, struct cl_io *io, struct osc_page *ops, void *cbdata) { struct osc_thread_info *info = osc_env_info(env); - struct cl_lock *lock = cbdata; + struct osc_object *osc = cbdata; pgoff_t index; index = osc_index(ops); if (index >= info->oti_fn_index) { - struct cl_lock *tmp; + struct ldlm_lock *tmp; struct cl_page *page = ops->ops_cl.cpl_page; /* refresh non-overlapped index */ - tmp = cl_lock_at_pgoff(env, lock->cll_descr.cld_obj, index, - lock, 1, 0); + tmp = osc_dlmlock_at_pgoff(env, osc, index, 0, 0); if (tmp) { + __u64 end = tmp->l_policy_data.l_extent.end; /* Cache the first-non-overlapped index so as to skip - * all pages within [index, oti_fn_index). This - * is safe because if tmp lock is canceled, it will - * discard these pages. + * all pages within [index, oti_fn_index). This is safe + * because if tmp lock is canceled, it will discard + * these pages. */ - info->oti_fn_index = tmp->cll_descr.cld_end + 1; - if (tmp->cll_descr.cld_end == CL_PAGE_EOF) + info->oti_fn_index = cl_index(osc2cl(osc), end + 1); + if (end == OBD_OBJECT_EOF) info->oti_fn_index = CL_PAGE_EOF; - cl_lock_put(env, tmp); + LDLM_LOCK_PUT(tmp); } else if (cl_page_own(env, io, page) == 0) { /* discard the page */ cl_page_discard(env, io, page); @@ -3125,11 +3147,8 @@ static int discard_cb(const struct lu_env *env, struct cl_io *io, struct osc_page *ops, void *cbdata) { struct osc_thread_info *info = osc_env_info(env); - struct cl_lock *lock = cbdata; struct cl_page *page = ops->ops_cl.cpl_page; - LASSERT(lock->cll_descr.cld_mode >= CLM_WRITE); - /* page is top page. */ info->oti_next_index = osc_index(ops) + 1; if (cl_page_own(env, io, page) == 0) { @@ -3154,30 +3173,27 @@ static int discard_cb(const struct lu_env *env, struct cl_io *io, * If error happens on any step, the process continues anyway (the reasoning * behind this being that lock cancellation cannot be delayed indefinitely). */ -int osc_lock_discard_pages(const struct lu_env *env, struct osc_lock *ols) +int osc_lock_discard_pages(const struct lu_env *env, struct osc_object *osc, + pgoff_t start, pgoff_t end, enum cl_lock_mode mode) { struct osc_thread_info *info = osc_env_info(env); struct cl_io *io = &info->oti_io; - struct cl_object *osc = ols->ols_cl.cls_obj; - struct cl_lock *lock = ols->ols_cl.cls_lock; - struct cl_lock_descr *descr = &lock->cll_descr; osc_page_gang_cbt cb; int res; int result; - io->ci_obj = cl_object_top(osc); + io->ci_obj = cl_object_top(osc2cl(osc)); io->ci_ignore_layout = 1; result = cl_io_init(env, io, CIT_MISC, io->ci_obj); if (result != 0) goto out; - cb = descr->cld_mode == CLM_READ ? check_and_discard_cb : discard_cb; - info->oti_fn_index = info->oti_next_index = descr->cld_start; + cb = mode == CLM_READ ? check_and_discard_cb : discard_cb; + info->oti_fn_index = info->oti_next_index = start; do { - res = osc_page_gang_lookup(env, io, cl2osc(osc), - info->oti_next_index, descr->cld_end, - cb, (void *)lock); - if (info->oti_next_index > descr->cld_end) + res = osc_page_gang_lookup(env, io, osc, + info->oti_next_index, end, cb, osc); + if (info->oti_next_index > end) break; if (res == CLP_GANG_RESCHED) diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index bb34b53a..c7a69e4 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -68,6 +68,9 @@ struct osc_io { struct cl_io_slice oi_cl; /** true if this io is lockless. */ int oi_lockless; + /** how many LRU pages are reserved for this IO */ + int oi_lru_reserved; + /** active extents, we know how many bytes is going to be written, * so having an active extent will prevent it from being fragmented */ @@ -77,8 +80,8 @@ struct osc_io { */ struct osc_extent *oi_trunc; - int oi_lru_reserved; - + /** write osc_lock for this IO, used by osc_extent_find(). */ + struct osc_lock *oi_write_osclock; struct obd_info oi_info; struct obdo oi_oa; struct osc_async_cbargs { @@ -117,6 +120,7 @@ struct osc_thread_info { */ pgoff_t oti_next_index; pgoff_t oti_fn_index; /* first non-overlapped index */ + struct cl_sync_io oti_anchor; }; struct osc_object { @@ -173,6 +177,10 @@ struct osc_object { struct radix_tree_root oo_tree; spinlock_t oo_tree_lock; unsigned long oo_npages; + + /* Protect osc_lock this osc_object has */ + spinlock_t oo_ol_spin; + struct list_head oo_ol_list; }; static inline void osc_object_lock(struct osc_object *obj) @@ -212,8 +220,6 @@ enum osc_lock_state { OLS_ENQUEUED, OLS_UPCALL_RECEIVED, OLS_GRANTED, - OLS_RELEASED, - OLS_BLOCKED, OLS_CANCELLED }; @@ -222,10 +228,8 @@ enum osc_lock_state { * * Interaction with DLM. * - * CLIO enqueues all DLM locks through ptlrpcd (that is, in "async" mode). - * * Once receive upcall is invoked, osc_lock remembers a handle of DLM lock in - * osc_lock::ols_handle and a pointer to that lock in osc_lock::ols_lock. + * osc_lock::ols_handle and a pointer to that lock in osc_lock::ols_dlmlock. * * This pointer is protected through a reference, acquired by * osc_lock_upcall0(). Also, an additional reference is acquired by @@ -263,16 +267,27 @@ enum osc_lock_state { */ struct osc_lock { struct cl_lock_slice ols_cl; + /** Internal lock to protect states, etc. */ + spinlock_t ols_lock; + /** Owner sleeps on this channel for state change */ + struct cl_sync_io *ols_owner; + /** waiting list for this lock to be cancelled */ + struct list_head ols_waiting_list; + /** wait entry of ols_waiting_list */ + struct list_head ols_wait_entry; + /** list entry for osc_object::oo_ol_list */ + struct list_head ols_nextlock_oscobj; + /** underlying DLM lock */ - struct ldlm_lock *ols_lock; - /** lock value block */ - struct ost_lvb ols_lvb; + struct ldlm_lock *ols_dlmlock; /** DLM flags with which osc_lock::ols_lock was enqueued */ __u64 ols_flags; /** osc_lock::ols_lock handle */ struct lustre_handle ols_handle; struct ldlm_enqueue_info ols_einfo; enum osc_lock_state ols_state; + /** lock value block */ + struct ost_lvb ols_lvb; /** * true, if ldlm_lock_addref() was called against @@ -303,16 +318,6 @@ struct osc_lock { */ ols_locklessable:1, /** - * set by osc_lock_use() to wait until blocking AST enters into - * osc_ldlm_blocking_ast0(), so that cl_lock mutex can be used for - * further synchronization. - */ - ols_ast_wait:1, - /** - * If the data of this lock has been flushed to server side. - */ - ols_flush:1, - /** * if set, the osc_lock is a glimpse lock. For glimpse locks, we treat * the EVAVAIL error as tolerable, this will make upper logic happy * to wait all glimpse locks to each OSTs to be completed. @@ -325,15 +330,6 @@ struct osc_lock { * For async glimpse lock. */ ols_agl:1; - /** - * IO that owns this lock. This field is used for a dead-lock - * avoidance by osc_lock_enqueue_wait(). - * - * XXX: unfortunately, the owner of a osc_lock is not unique, - * the lock may have multiple users, if the lock is granted and - * then matched. - */ - struct osc_io *ols_owner; }; /** @@ -627,6 +623,8 @@ struct osc_extent { unsigned int oe_intree:1, /** 0 is write, 1 is read */ oe_rw:1, + /** sync extent, queued by osc_queue_sync_pages() */ + oe_sync:1, oe_srvlock:1, oe_memalloc:1, /** an ACTIVE extent is going to be truncated, so when this extent @@ -675,7 +673,7 @@ struct osc_extent { */ wait_queue_head_t oe_waitq; /** lock covering this extent */ - struct cl_lock *oe_osclock; + struct ldlm_lock *oe_dlmlock; /** terminator of this extent. Must be true if this extent is in IO. */ struct task_struct *oe_owner; /** return value of writeback. If somebody is waiting for this extent, @@ -690,14 +688,14 @@ int osc_extent_finish(const struct lu_env *env, struct osc_extent *ext, int sent, int rc); void osc_extent_release(const struct lu_env *env, struct osc_extent *ext); -int osc_lock_discard_pages(const struct lu_env *env, struct osc_lock *lock); +int osc_lock_discard_pages(const struct lu_env *env, struct osc_object *osc, + pgoff_t start, pgoff_t end, enum cl_lock_mode mode); typedef int (*osc_page_gang_cbt)(const struct lu_env *, struct cl_io *, struct osc_page *, void *); int osc_page_gang_lookup(const struct lu_env *env, struct cl_io *io, struct osc_object *osc, pgoff_t start, pgoff_t end, osc_page_gang_cbt cb, void *cbdata); - /** @} osc */ #endif /* OSC_CL_INTERNAL_H */ diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h index b7fb01a..cf9f8b7 100644 --- a/drivers/staging/lustre/lustre/osc/osc_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_internal.h @@ -108,12 +108,14 @@ void osc_update_next_shrink(struct client_obd *cli); extern struct ptlrpc_request_set *PTLRPCD_SET; +typedef int (*osc_enqueue_upcall_f)(void *cookie, struct lustre_handle *lockh, + int rc); + int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, __u64 *flags, ldlm_policy_data_t *policy, struct ost_lvb *lvb, int kms_valid, - obd_enqueue_update_f upcall, + osc_enqueue_upcall_f upcall, void *cookie, struct ldlm_enqueue_info *einfo, - struct lustre_handle *lockh, struct ptlrpc_request_set *rqset, int async, int agl); int osc_cancel_base(struct lustre_handle *lockh, __u32 mode); @@ -140,7 +142,6 @@ int osc_lru_shrink(const struct lu_env *env, struct client_obd *cli, int target, bool force); int osc_lru_reclaim(struct client_obd *cli); -extern spinlock_t osc_ast_guard; unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock); int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg); @@ -199,5 +200,8 @@ int osc_quotactl(struct obd_device *unused, struct obd_export *exp, int osc_quotacheck(struct obd_device *unused, struct obd_export *exp, struct obd_quotactl *oqctl); int osc_quota_poll_check(struct obd_export *exp, struct if_quotacheck *qchk); +struct ldlm_lock *osc_dlmlock_at_pgoff(const struct lu_env *env, + struct osc_object *obj, pgoff_t index, + int pending, int canceling); #endif /* OSC_INTERNAL_H */ diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c index 1ae8a22..cf7743d 100644 --- a/drivers/staging/lustre/lustre/osc/osc_io.c +++ b/drivers/staging/lustre/lustre/osc/osc_io.c @@ -354,6 +354,7 @@ static void osc_io_rw_iter_fini(const struct lu_env *env, atomic_add(oio->oi_lru_reserved, cli->cl_lru_left); oio->oi_lru_reserved = 0; } + oio->oi_write_osclock = NULL; } static int osc_io_fault_start(const struct lu_env *env, @@ -751,8 +752,7 @@ static void osc_req_attr_set(const struct lu_env *env, struct lov_oinfo *oinfo; struct cl_req *clerq; struct cl_page *apage; /* _some_ page in @clerq */ - struct cl_lock *lock; /* _some_ lock protecting @apage */ - struct osc_lock *olck; + struct ldlm_lock *lock; /* _some_ lock protecting @apage */ struct osc_page *opg; struct obdo *oa; struct ost_lvb *lvb; @@ -782,38 +782,37 @@ static void osc_req_attr_set(const struct lu_env *env, oa->o_valid |= OBD_MD_FLID; } if (flags & OBD_MD_FLHANDLE) { - struct cl_object *subobj; clerq = slice->crs_req; LASSERT(!list_empty(&clerq->crq_pages)); apage = container_of(clerq->crq_pages.next, struct cl_page, cp_flight); opg = osc_cl_page_osc(apage, NULL); - subobj = opg->ops_cl.cpl_obj; - lock = cl_lock_at_pgoff(env, subobj, osc_index(opg), - NULL, 1, 1); - if (!lock) { - struct cl_object_header *head; - struct cl_lock *scan; - - head = cl_object_header(subobj); - list_for_each_entry(scan, &head->coh_locks, cll_linkage) - CL_LOCK_DEBUG(D_ERROR, env, scan, - "no cover page!\n"); - CL_PAGE_DEBUG(D_ERROR, env, apage, - "dump uncover page!\n"); + lock = osc_dlmlock_at_pgoff(env, cl2osc(obj), osc_index(opg), + 1, 1); + if (!lock && !opg->ops_srvlock) { + struct ldlm_resource *res; + struct ldlm_res_id *resname; + + CL_PAGE_DEBUG(D_ERROR, env, apage, "uncovered page!\n"); + + resname = &osc_env_info(env)->oti_resname; + ostid_build_res_name(&oinfo->loi_oi, resname); + res = ldlm_resource_get( + osc_export(cl2osc(obj))->exp_obd->obd_namespace, + NULL, resname, LDLM_EXTENT, 0); + ldlm_resource_dump(D_ERROR, res); + dump_stack(); LBUG(); } - olck = osc_lock_at(lock); - LASSERT(ergo(opg->ops_srvlock, !olck->ols_lock)); /* check for lockless io. */ - if (olck->ols_lock) { - oa->o_handle = olck->ols_lock->l_remote_handle; + if (lock) { + oa->o_handle = lock->l_remote_handle; oa->o_valid |= OBD_MD_FLHANDLE; + LDLM_LOCK_PUT(lock); } - cl_lock_put(env, lock); } } diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c index 978b6ea..68c5013 100644 --- a/drivers/staging/lustre/lustre/osc/osc_lock.c +++ b/drivers/staging/lustre/lustre/osc/osc_lock.c @@ -61,7 +61,6 @@ static const struct cl_lock_operations osc_lock_ops; static const struct cl_lock_operations osc_lock_lockless_ops; static void osc_lock_to_lockless(const struct lu_env *env, struct osc_lock *ols, int force); -static int osc_lock_has_pages(struct osc_lock *olck); int osc_lock_is_lockless(const struct osc_lock *olck) { @@ -89,11 +88,11 @@ static struct ldlm_lock *osc_handle_ptr(struct lustre_handle *handle) static int osc_lock_invariant(struct osc_lock *ols) { struct ldlm_lock *lock = osc_handle_ptr(&ols->ols_handle); - struct ldlm_lock *olock = ols->ols_lock; + struct ldlm_lock *olock = ols->ols_dlmlock; int handle_used = lustre_handle_is_used(&ols->ols_handle); if (ergo(osc_lock_is_lockless(ols), - ols->ols_locklessable && !ols->ols_lock)) + ols->ols_locklessable && !ols->ols_dlmlock)) return 1; /* @@ -110,7 +109,7 @@ static int osc_lock_invariant(struct osc_lock *ols) ergo(!lock, !olock))) return 0; /* - * Check that ->ols_handle and ->ols_lock are consistent, but + * Check that ->ols_handle and ->ols_dlmlock are consistent, but * take into account that they are set at the different time. */ if (!ergo(ols->ols_state == OLS_CANCELLED, @@ -137,115 +136,13 @@ static int osc_lock_invariant(struct osc_lock *ols) * */ -/** - * Breaks a link between osc_lock and dlm_lock. - */ -static void osc_lock_detach(const struct lu_env *env, struct osc_lock *olck) -{ - struct ldlm_lock *dlmlock; - - spin_lock(&osc_ast_guard); - dlmlock = olck->ols_lock; - if (!dlmlock) { - spin_unlock(&osc_ast_guard); - return; - } - - olck->ols_lock = NULL; - /* wb(); --- for all who checks (ols->ols_lock != NULL) before - * call to osc_lock_detach() - */ - dlmlock->l_ast_data = NULL; - olck->ols_handle.cookie = 0ULL; - spin_unlock(&osc_ast_guard); - - lock_res_and_lock(dlmlock); - if (dlmlock->l_granted_mode == dlmlock->l_req_mode) { - struct cl_object *obj = olck->ols_cl.cls_obj; - struct cl_attr *attr = &osc_env_info(env)->oti_attr; - __u64 old_kms; - - cl_object_attr_lock(obj); - /* Must get the value under the lock to avoid possible races. */ - old_kms = cl2osc(obj)->oo_oinfo->loi_kms; - /* Update the kms. Need to loop all granted locks. - * Not a problem for the client - */ - attr->cat_kms = ldlm_extent_shift_kms(dlmlock, old_kms); - - cl_object_attr_set(env, obj, attr, CAT_KMS); - cl_object_attr_unlock(obj); - } - unlock_res_and_lock(dlmlock); - - /* release a reference taken in osc_lock_upcall0(). */ - LASSERT(olck->ols_has_ref); - lu_ref_del(&dlmlock->l_reference, "osc_lock", olck); - LDLM_LOCK_RELEASE(dlmlock); - olck->ols_has_ref = 0; -} - -static int osc_lock_unhold(struct osc_lock *ols) -{ - int result = 0; - - if (ols->ols_hold) { - ols->ols_hold = 0; - result = osc_cancel_base(&ols->ols_handle, - ols->ols_einfo.ei_mode); - } - return result; -} - -static int osc_lock_unuse(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct osc_lock *ols = cl2osc_lock(slice); - - LINVRNT(osc_lock_invariant(ols)); - - switch (ols->ols_state) { - case OLS_NEW: - LASSERT(!ols->ols_hold); - LASSERT(ols->ols_agl); - return 0; - case OLS_UPCALL_RECEIVED: - osc_lock_unhold(ols); - case OLS_ENQUEUED: - LASSERT(!ols->ols_hold); - osc_lock_detach(env, ols); - ols->ols_state = OLS_NEW; - return 0; - case OLS_GRANTED: - LASSERT(!ols->ols_glimpse); - LASSERT(ols->ols_hold); - /* - * Move lock into OLS_RELEASED state before calling - * osc_cancel_base() so that possible synchronous cancellation - * sees that lock is released. - */ - ols->ols_state = OLS_RELEASED; - return osc_lock_unhold(ols); - default: - CERROR("Impossible state: %d\n", ols->ols_state); - LBUG(); - } -} - static void osc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice) { struct osc_lock *ols = cl2osc_lock(slice); LINVRNT(osc_lock_invariant(ols)); - /* - * ->ols_hold can still be true at this point if, for example, a - * thread that requested a lock was killed (and released a reference - * to the lock), before reply from a server was received. In this case - * lock is destroyed immediately after upcall. - */ - osc_lock_unhold(ols); - LASSERT(!ols->ols_lock); + LASSERT(!ols->ols_dlmlock); kmem_cache_free(osc_lock_kmem, ols); } @@ -272,55 +169,12 @@ static __u64 osc_enq2ldlm_flags(__u32 enqflags) result |= LDLM_FL_HAS_INTENT; if (enqflags & CEF_DISCARD_DATA) result |= LDLM_FL_AST_DISCARD_DATA; + if (enqflags & CEF_PEEK) + result |= LDLM_FL_TEST_LOCK; return result; } /** - * Global spin-lock protecting consistency of ldlm_lock::l_ast_data - * pointers. Initialized in osc_init(). - */ -spinlock_t osc_ast_guard; - -static struct osc_lock *osc_ast_data_get(struct ldlm_lock *dlm_lock) -{ - struct osc_lock *olck; - - lock_res_and_lock(dlm_lock); - spin_lock(&osc_ast_guard); - olck = dlm_lock->l_ast_data; - if (olck) { - struct cl_lock *lock = olck->ols_cl.cls_lock; - /* - * If osc_lock holds a reference on ldlm lock, return it even - * when cl_lock is in CLS_FREEING state. This way - * - * osc_ast_data_get(dlmlock) == NULL - * - * guarantees that all osc references on dlmlock were - * released. osc_dlm_blocking_ast0() relies on that. - */ - if (lock->cll_state < CLS_FREEING || olck->ols_has_ref) { - cl_lock_get_trust(lock); - lu_ref_add_atomic(&lock->cll_reference, - "ast", current); - } else - olck = NULL; - } - spin_unlock(&osc_ast_guard); - unlock_res_and_lock(dlm_lock); - return olck; -} - -static void osc_ast_data_put(const struct lu_env *env, struct osc_lock *olck) -{ - struct cl_lock *lock; - - lock = olck->ols_cl.cls_lock; - lu_ref_del(&lock->cll_reference, "ast", current); - cl_lock_put(env, lock); -} - -/** * Updates object attributes from a lock value block (lvb) received together * with the DLM lock reply from the server. Copy of osc_update_enqueue() * logic. @@ -330,35 +184,30 @@ static void osc_ast_data_put(const struct lu_env *env, struct osc_lock *olck) * * Called under lock and resource spin-locks. */ -static void osc_lock_lvb_update(const struct lu_env *env, struct osc_lock *olck, - int rc) +static void osc_lock_lvb_update(const struct lu_env *env, + struct osc_object *osc, + struct ldlm_lock *dlmlock, + struct ost_lvb *lvb) { - struct ost_lvb *lvb; - struct cl_object *obj; - struct lov_oinfo *oinfo; - struct cl_attr *attr; + struct cl_object *obj = osc2cl(osc); + struct lov_oinfo *oinfo = osc->oo_oinfo; + struct cl_attr *attr = &osc_env_info(env)->oti_attr; unsigned valid; - if (!(olck->ols_flags & LDLM_FL_LVB_READY)) - return; - - lvb = &olck->ols_lvb; - obj = olck->ols_cl.cls_obj; - oinfo = cl2osc(obj)->oo_oinfo; - attr = &osc_env_info(env)->oti_attr; valid = CAT_BLOCKS | CAT_ATIME | CAT_CTIME | CAT_MTIME | CAT_SIZE; + if (!lvb) + lvb = dlmlock->l_lvb_data; + cl_lvb2attr(attr, lvb); cl_object_attr_lock(obj); - if (rc == 0) { - struct ldlm_lock *dlmlock; + if (dlmlock) { __u64 size; - dlmlock = olck->ols_lock; - - /* re-grab LVB from a dlm lock under DLM spin-locks. */ - *lvb = *(struct ost_lvb *)dlmlock->l_lvb_data; + check_res_locked(dlmlock->l_resource); + LASSERT(lvb == dlmlock->l_lvb_data); size = lvb->lvb_size; + /* Extend KMS up to the end of this lock and no further * A lock on [x,y] means a KMS of up to y + 1 bytes! */ @@ -375,102 +224,67 @@ static void osc_lock_lvb_update(const struct lu_env *env, struct osc_lock *olck, dlmlock->l_policy_data.l_extent.end); } ldlm_lock_allow_match_locked(dlmlock); - } else if (rc == -ENAVAIL && olck->ols_glimpse) { - CDEBUG(D_INODE, "glimpsed, setting rss=%llu; leaving kms=%llu\n", - lvb->lvb_size, oinfo->loi_kms); - } else - valid = 0; - - if (valid != 0) - cl_object_attr_set(env, obj, attr, valid); + } + cl_object_attr_set(env, obj, attr, valid); cl_object_attr_unlock(obj); } -/** - * Called when a lock is granted, from an upcall (when server returned a - * granted lock), or from completion AST, when server returned a blocked lock. - * - * Called under lock and resource spin-locks, that are released temporarily - * here. - */ -static void osc_lock_granted(const struct lu_env *env, struct osc_lock *olck, - struct ldlm_lock *dlmlock, int rc) +static void osc_lock_granted(const struct lu_env *env, struct osc_lock *oscl, + struct lustre_handle *lockh, bool lvb_update) { - struct ldlm_extent *ext; - struct cl_lock *lock; - struct cl_lock_descr *descr; + struct ldlm_lock *dlmlock; - LASSERT(dlmlock->l_granted_mode == dlmlock->l_req_mode); + dlmlock = ldlm_handle2lock_long(lockh, 0); + LASSERT(dlmlock); + + /* lock reference taken by ldlm_handle2lock_long() is + * owned by osc_lock and released in osc_lock_detach() + */ + lu_ref_add(&dlmlock->l_reference, "osc_lock", oscl); + oscl->ols_has_ref = 1; - if (olck->ols_state < OLS_GRANTED) { - lock = olck->ols_cl.cls_lock; - ext = &dlmlock->l_policy_data.l_extent; - descr = &osc_env_info(env)->oti_descr; - descr->cld_obj = lock->cll_descr.cld_obj; + LASSERT(!oscl->ols_dlmlock); + oscl->ols_dlmlock = dlmlock; - /* XXX check that ->l_granted_mode is valid. */ - descr->cld_mode = osc_ldlm2cl_lock(dlmlock->l_granted_mode); - descr->cld_start = cl_index(descr->cld_obj, ext->start); - descr->cld_end = cl_index(descr->cld_obj, ext->end); - descr->cld_gid = ext->gid; - /* - * tell upper layers the extent of the lock that was actually - * granted - */ - olck->ols_state = OLS_GRANTED; - osc_lock_lvb_update(env, olck, rc); - - /* release DLM spin-locks to allow cl_lock_{modify,signal}() - * to take a semaphore on a parent lock. This is safe, because - * spin-locks are needed to protect consistency of - * dlmlock->l_*_mode and LVB, and we have finished processing - * them. + /* This may be a matched lock for glimpse request, do not hold + * lock reference in that case. + */ + if (!oscl->ols_glimpse) { + /* hold a refc for non glimpse lock which will + * be released in osc_lock_cancel() */ - unlock_res_and_lock(dlmlock); - cl_lock_modify(env, lock, descr); - cl_lock_signal(env, lock); - LINVRNT(osc_lock_invariant(olck)); - lock_res_and_lock(dlmlock); + lustre_handle_copy(&oscl->ols_handle, lockh); + ldlm_lock_addref(lockh, oscl->ols_einfo.ei_mode); + oscl->ols_hold = 1; } -} - -static void osc_lock_upcall0(const struct lu_env *env, struct osc_lock *olck) - -{ - struct ldlm_lock *dlmlock; - - dlmlock = ldlm_handle2lock_long(&olck->ols_handle, 0); - LASSERT(dlmlock); + /* Lock must have been granted. */ lock_res_and_lock(dlmlock); - spin_lock(&osc_ast_guard); - LASSERT(dlmlock->l_ast_data == olck); - LASSERT(!olck->ols_lock); - olck->ols_lock = dlmlock; - spin_unlock(&osc_ast_guard); + if (dlmlock->l_granted_mode == dlmlock->l_req_mode) { + struct ldlm_extent *ext = &dlmlock->l_policy_data.l_extent; + struct cl_lock_descr *descr = &oscl->ols_cl.cls_lock->cll_descr; - /* - * Lock might be not yet granted. In this case, completion ast - * (osc_ldlm_completion_ast()) comes later and finishes lock - * granting. - */ - if (dlmlock->l_granted_mode == dlmlock->l_req_mode) - osc_lock_granted(env, olck, dlmlock, 0); - unlock_res_and_lock(dlmlock); + /* extend the lock extent, otherwise it will have problem when + * we decide whether to grant a lockless lock. + */ + descr->cld_mode = osc_ldlm2cl_lock(dlmlock->l_granted_mode); + descr->cld_start = cl_index(descr->cld_obj, ext->start); + descr->cld_end = cl_index(descr->cld_obj, ext->end); + descr->cld_gid = ext->gid; - /* - * osc_enqueue_interpret() decrefs asynchronous locks, counter - * this. - */ - ldlm_lock_addref(&olck->ols_handle, olck->ols_einfo.ei_mode); - olck->ols_hold = 1; + /* no lvb update for matched lock */ + if (lvb_update) { + LASSERT(oscl->ols_flags & LDLM_FL_LVB_READY); + osc_lock_lvb_update(env, cl2osc(oscl->ols_cl.cls_obj), + dlmlock, NULL); + } + LINVRNT(osc_lock_invariant(oscl)); + } + unlock_res_and_lock(dlmlock); - /* lock reference taken by ldlm_handle2lock_long() is owned by - * osc_lock and released in osc_lock_detach() - */ - lu_ref_add(&dlmlock->l_reference, "osc_lock", olck); - olck->ols_has_ref = 1; + LASSERT(oscl->ols_state != OLS_GRANTED); + oscl->ols_state = OLS_GRANTED; } /** @@ -478,143 +292,124 @@ static void osc_lock_upcall0(const struct lu_env *env, struct osc_lock *olck) * received from a server, or after osc_enqueue_base() matched a local DLM * lock. */ -static int osc_lock_upcall(void *cookie, int errcode) +static int osc_lock_upcall(void *cookie, struct lustre_handle *lockh, + int errcode) { - struct osc_lock *olck = cookie; - struct cl_lock_slice *slice = &olck->ols_cl; - struct cl_lock *lock = slice->cls_lock; + struct osc_lock *oscl = cookie; + struct cl_lock_slice *slice = &oscl->ols_cl; struct lu_env *env; struct cl_env_nest nest; + int rc; env = cl_env_nested_get(&nest); - if (!IS_ERR(env)) { - int rc; - - cl_lock_mutex_get(env, lock); + /* should never happen, similar to osc_ldlm_blocking_ast(). */ + LASSERT(!IS_ERR(env)); + + rc = ldlm_error2errno(errcode); + if (oscl->ols_state == OLS_ENQUEUED) { + oscl->ols_state = OLS_UPCALL_RECEIVED; + } else if (oscl->ols_state == OLS_CANCELLED) { + rc = -EIO; + } else { + CERROR("Impossible state: %d\n", oscl->ols_state); + LBUG(); + } - LASSERT(lock->cll_state >= CLS_QUEUING); - if (olck->ols_state == OLS_ENQUEUED) { - olck->ols_state = OLS_UPCALL_RECEIVED; - rc = ldlm_error2errno(errcode); - } else if (olck->ols_state == OLS_CANCELLED) { - rc = -EIO; - } else { - CERROR("Impossible state: %d\n", olck->ols_state); - LBUG(); - } - if (rc) { - struct ldlm_lock *dlmlock; - - dlmlock = ldlm_handle2lock(&olck->ols_handle); - if (dlmlock) { - lock_res_and_lock(dlmlock); - spin_lock(&osc_ast_guard); - LASSERT(!olck->ols_lock); - dlmlock->l_ast_data = NULL; - olck->ols_handle.cookie = 0ULL; - spin_unlock(&osc_ast_guard); - ldlm_lock_fail_match_locked(dlmlock); - unlock_res_and_lock(dlmlock); - LDLM_LOCK_PUT(dlmlock); - } - } else { - if (olck->ols_glimpse) - olck->ols_glimpse = 0; - osc_lock_upcall0(env, olck); - } + if (rc == 0) + osc_lock_granted(env, oscl, lockh, errcode == ELDLM_OK); - /* Error handling, some errors are tolerable. */ - if (olck->ols_locklessable && rc == -EUSERS) { - /* This is a tolerable error, turn this lock into - * lockless lock. - */ - osc_object_set_contended(cl2osc(slice->cls_obj)); - LASSERT(slice->cls_ops == &osc_lock_ops); + /* Error handling, some errors are tolerable. */ + if (oscl->ols_locklessable && rc == -EUSERS) { + /* This is a tolerable error, turn this lock into + * lockless lock. + */ + osc_object_set_contended(cl2osc(slice->cls_obj)); + LASSERT(slice->cls_ops == &osc_lock_ops); + + /* Change this lock to ldlmlock-less lock. */ + osc_lock_to_lockless(env, oscl, 1); + oscl->ols_state = OLS_GRANTED; + rc = 0; + } else if (oscl->ols_glimpse && rc == -ENAVAIL) { + LASSERT(oscl->ols_flags & LDLM_FL_LVB_READY); + osc_lock_lvb_update(env, cl2osc(slice->cls_obj), + NULL, &oscl->ols_lvb); + /* Hide the error. */ + rc = 0; + } - /* Change this lock to ldlmlock-less lock. */ - osc_lock_to_lockless(env, olck, 1); - olck->ols_state = OLS_GRANTED; - rc = 0; - } else if (olck->ols_glimpse && rc == -ENAVAIL) { - osc_lock_lvb_update(env, olck, rc); - cl_lock_delete(env, lock); - /* Hide the error. */ - rc = 0; - } + if (oscl->ols_owner) + cl_sync_io_note(env, oscl->ols_owner, rc); + cl_env_nested_put(&nest, env); - if (rc == 0) { - /* For AGL case, the RPC sponsor may exits the cl_lock - * processing without wait() called before related OSC - * lock upcall(). So update the lock status according - * to the enqueue result inside AGL upcall(). - */ - if (olck->ols_agl) { - lock->cll_flags |= CLF_FROM_UPCALL; - cl_wait_try(env, lock); - lock->cll_flags &= ~CLF_FROM_UPCALL; - if (!olck->ols_glimpse) - olck->ols_agl = 0; - } - cl_lock_signal(env, lock); - /* del user for lock upcall cookie */ - cl_unuse_try(env, lock); - } else { - /* del user for lock upcall cookie */ - cl_lock_user_del(env, lock); - cl_lock_error(env, lock, rc); - } + return rc; +} - /* release cookie reference, acquired by osc_lock_enqueue() */ - cl_lock_hold_release(env, lock, "upcall", lock); - cl_lock_mutex_put(env, lock); +static int osc_lock_upcall_agl(void *cookie, struct lustre_handle *lockh, + int errcode) +{ + struct osc_object *osc = cookie; + struct ldlm_lock *dlmlock; + struct lu_env *env; + struct cl_env_nest nest; - lu_ref_del(&lock->cll_reference, "upcall", lock); - /* This maybe the last reference, so must be called after - * cl_lock_mutex_put(). - */ - cl_lock_put(env, lock); + env = cl_env_nested_get(&nest); + LASSERT(!IS_ERR(env)); - cl_env_nested_put(&nest, env); - } else { - /* should never happen, similar to osc_ldlm_blocking_ast(). */ - LBUG(); + if (errcode == ELDLM_LOCK_MATCHED) { + errcode = ELDLM_OK; + goto out; } - return errcode; + + if (errcode != ELDLM_OK) + goto out; + + dlmlock = ldlm_handle2lock(lockh); + LASSERT(dlmlock); + + lock_res_and_lock(dlmlock); + LASSERT(dlmlock->l_granted_mode == dlmlock->l_req_mode); + + /* there is no osc_lock associated with AGL lock */ + osc_lock_lvb_update(env, osc, dlmlock, NULL); + + unlock_res_and_lock(dlmlock); + LDLM_LOCK_PUT(dlmlock); + +out: + cl_object_put(env, osc2cl(osc)); + cl_env_nested_put(&nest, env); + return ldlm_error2errno(errcode); } -/** - * Core of osc_dlm_blocking_ast() logic. - */ -static void osc_lock_blocking(const struct lu_env *env, - struct ldlm_lock *dlmlock, - struct osc_lock *olck, int blocking) +static int osc_lock_flush(struct osc_object *obj, pgoff_t start, pgoff_t end, + enum cl_lock_mode mode, int discard) { - struct cl_lock *lock = olck->ols_cl.cls_lock; + struct lu_env *env; + struct cl_env_nest nest; + int rc = 0; + int rc2 = 0; - LASSERT(olck->ols_lock == dlmlock); - CLASSERT(OLS_BLOCKED < OLS_CANCELLED); - LASSERT(!osc_lock_is_lockless(olck)); + env = cl_env_nested_get(&nest); + if (IS_ERR(env)) + return PTR_ERR(env); + + if (mode == CLM_WRITE) { + rc = osc_cache_writeback_range(env, obj, start, end, 1, + discard); + CDEBUG(D_CACHE, "object %p: [%lu -> %lu] %d pages were %s.\n", + obj, start, end, rc, + discard ? "discarded" : "written back"); + if (rc > 0) + rc = 0; + } - /* - * Lock might be still addref-ed here, if e.g., blocking ast - * is sent for a failed lock. - */ - osc_lock_unhold(olck); + rc2 = osc_lock_discard_pages(env, obj, start, end, mode); + if (rc == 0 && rc2 < 0) + rc = rc2; - if (blocking && olck->ols_state < OLS_BLOCKED) - /* - * Move osc_lock into OLS_BLOCKED before canceling the lock, - * because it recursively re-enters osc_lock_blocking(), with - * the state set to OLS_CANCELLED. - */ - olck->ols_state = OLS_BLOCKED; - /* - * cancel and destroy lock at least once no matter how blocking ast is - * entered (see comment above osc_ldlm_blocking_ast() for use - * cases). cl_lock_cancel() and cl_lock_delete() are idempotent. - */ - cl_lock_cancel(env, lock); - cl_lock_delete(env, lock); + cl_env_nested_put(&nest, env); + return rc; } /** @@ -625,65 +420,63 @@ static int osc_dlm_blocking_ast0(const struct lu_env *env, struct ldlm_lock *dlmlock, void *data, int flag) { - struct osc_lock *olck; - struct cl_lock *lock; - int result; - int cancel; - - LASSERT(flag == LDLM_CB_BLOCKING || flag == LDLM_CB_CANCELING); - - cancel = 0; - olck = osc_ast_data_get(dlmlock); - if (olck) { - lock = olck->ols_cl.cls_lock; - cl_lock_mutex_get(env, lock); - LINVRNT(osc_lock_invariant(olck)); - if (olck->ols_ast_wait) { - /* wake up osc_lock_use() */ - cl_lock_signal(env, lock); - olck->ols_ast_wait = 0; - } - /* - * Lock might have been canceled while this thread was - * sleeping for lock mutex, but olck is pinned in memory. - */ - if (olck == dlmlock->l_ast_data) { - /* - * NOTE: DLM sends blocking AST's for failed locks - * (that are still in pre-OLS_GRANTED state) - * too, and they have to be canceled otherwise - * DLM lock is never destroyed and stuck in - * the memory. - * - * Alternatively, ldlm_cli_cancel() can be - * called here directly for osc_locks with - * ols_state < OLS_GRANTED to maintain an - * invariant that ->clo_cancel() is only called - * for locks that were granted. - */ - LASSERT(data == olck); - osc_lock_blocking(env, dlmlock, - olck, flag == LDLM_CB_BLOCKING); - } else - cancel = 1; - cl_lock_mutex_put(env, lock); - osc_ast_data_put(env, olck); - } else - /* - * DLM lock exists, but there is no cl_lock attached to it. - * This is a `normal' race. cl_object and its cl_lock's can be - * removed by memory pressure, together with all pages. + struct cl_object *obj = NULL; + int result = 0; + int discard; + enum cl_lock_mode mode = CLM_READ; + + LASSERT(flag == LDLM_CB_CANCELING); + + lock_res_and_lock(dlmlock); + if (dlmlock->l_granted_mode != dlmlock->l_req_mode) { + dlmlock->l_ast_data = NULL; + unlock_res_and_lock(dlmlock); + return 0; + } + + discard = ldlm_is_discard_data(dlmlock); + if (dlmlock->l_granted_mode & (LCK_PW | LCK_GROUP)) + mode = CLM_WRITE; + + if (dlmlock->l_ast_data) { + obj = osc2cl(dlmlock->l_ast_data); + dlmlock->l_ast_data = NULL; + + cl_object_get(obj); + } + + unlock_res_and_lock(dlmlock); + + /* if l_ast_data is NULL, the dlmlock was enqueued by AGL or + * the object has been destroyed. + */ + if (obj) { + struct ldlm_extent *extent = &dlmlock->l_policy_data.l_extent; + struct cl_attr *attr = &osc_env_info(env)->oti_attr; + __u64 old_kms; + + /* Destroy pages covered by the extent of the DLM lock */ + result = osc_lock_flush(cl2osc(obj), + cl_index(obj, extent->start), + cl_index(obj, extent->end), + mode, discard); + + /* losing a lock, update kms */ + lock_res_and_lock(dlmlock); + cl_object_attr_lock(obj); + /* Must get the value under the lock to avoid race. */ + old_kms = cl2osc(obj)->oo_oinfo->loi_kms; + /* Update the kms. Need to loop all granted locks. + * Not a problem for the client */ - cancel = (flag == LDLM_CB_BLOCKING); + attr->cat_kms = ldlm_extent_shift_kms(dlmlock, old_kms); - if (cancel) { - struct lustre_handle *lockh; + cl_object_attr_set(env, obj, attr, CAT_KMS); + cl_object_attr_unlock(obj); + unlock_res_and_lock(dlmlock); - lockh = &osc_env_info(env)->oti_handle; - ldlm_lock2handle(dlmlock, lockh); - result = ldlm_cli_cancel(lockh, LCF_ASYNC); - } else - result = 0; + cl_object_put(env, obj); + } return result; } @@ -733,107 +526,52 @@ static int osc_ldlm_blocking_ast(struct ldlm_lock *dlmlock, struct ldlm_lock_desc *new, void *data, int flag) { - struct lu_env *env; - struct cl_env_nest nest; - int result; + int result = 0; - /* - * This can be called in the context of outer IO, e.g., - * - * cl_enqueue()->... - * ->osc_enqueue_base()->... - * ->ldlm_prep_elc_req()->... - * ->ldlm_cancel_callback()->... - * ->osc_ldlm_blocking_ast() - * - * new environment has to be created to not corrupt outer context. - */ - env = cl_env_nested_get(&nest); - if (!IS_ERR(env)) { - result = osc_dlm_blocking_ast0(env, dlmlock, data, flag); - cl_env_nested_put(&nest, env); - } else { - result = PTR_ERR(env); - /* - * XXX This should never happen, as cl_lock is - * stuck. Pre-allocated environment a la vvp_inode_fini_env - * should be used. - */ - LBUG(); - } - if (result != 0) { + switch (flag) { + case LDLM_CB_BLOCKING: { + struct lustre_handle lockh; + + ldlm_lock2handle(dlmlock, &lockh); + result = ldlm_cli_cancel(&lockh, LCF_ASYNC); if (result == -ENODATA) result = 0; - else - CERROR("BAST failed: %d\n", result); + break; } - return result; -} - -static int osc_ldlm_completion_ast(struct ldlm_lock *dlmlock, - __u64 flags, void *data) -{ - struct cl_env_nest nest; - struct lu_env *env; - struct osc_lock *olck; - struct cl_lock *lock; - int result; - int dlmrc; + case LDLM_CB_CANCELING: { + struct lu_env *env; + struct cl_env_nest nest; - /* first, do dlm part of the work */ - dlmrc = ldlm_completion_ast_async(dlmlock, flags, data); - /* then, notify cl_lock */ - env = cl_env_nested_get(&nest); - if (!IS_ERR(env)) { - olck = osc_ast_data_get(dlmlock); - if (olck) { - lock = olck->ols_cl.cls_lock; - cl_lock_mutex_get(env, lock); - /* - * ldlm_handle_cp_callback() copied LVB from request - * to lock->l_lvb_data, store it in osc_lock. - */ - LASSERT(dlmlock->l_lvb_data); - lock_res_and_lock(dlmlock); - olck->ols_lvb = *(struct ost_lvb *)dlmlock->l_lvb_data; - if (!olck->ols_lock) { - /* - * upcall (osc_lock_upcall()) hasn't yet been - * called. Do nothing now, upcall will bind - * olck to dlmlock and signal the waiters. - * - * This maintains an invariant that osc_lock - * and ldlm_lock are always bound when - * osc_lock is in OLS_GRANTED state. - */ - } else if (dlmlock->l_granted_mode == - dlmlock->l_req_mode) { - osc_lock_granted(env, olck, dlmlock, dlmrc); - } - unlock_res_and_lock(dlmlock); + /* + * This can be called in the context of outer IO, e.g., + * + * osc_enqueue_base()->... + * ->ldlm_prep_elc_req()->... + * ->ldlm_cancel_callback()->... + * ->osc_ldlm_blocking_ast() + * + * new environment has to be created to not corrupt outer + * context. + */ + env = cl_env_nested_get(&nest); + if (IS_ERR(env)) { + result = PTR_ERR(env); + break; + } - if (dlmrc != 0) { - CL_LOCK_DEBUG(D_ERROR, env, lock, - "dlmlock returned %d\n", dlmrc); - cl_lock_error(env, lock, dlmrc); - } - cl_lock_mutex_put(env, lock); - osc_ast_data_put(env, olck); - result = 0; - } else - result = -ELDLM_NO_LOCK_DATA; + result = osc_dlm_blocking_ast0(env, dlmlock, data, flag); cl_env_nested_put(&nest, env); - } else - result = PTR_ERR(env); - return dlmrc ?: result; + break; + } + default: + LBUG(); + } + return result; } static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data) { struct ptlrpc_request *req = data; - struct osc_lock *olck; - struct cl_lock *lock; - struct cl_object *obj; struct cl_env_nest nest; struct lu_env *env; struct ost_lvb *lvb; @@ -844,14 +582,16 @@ static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data) env = cl_env_nested_get(&nest); if (!IS_ERR(env)) { - /* osc_ast_data_get() has to go after environment is - * allocated, because osc_ast_data() acquires a - * reference to a lock, and it can only be released in - * environment. - */ - olck = osc_ast_data_get(dlmlock); - if (olck) { - lock = olck->ols_cl.cls_lock; + struct cl_object *obj = NULL; + + lock_res_and_lock(dlmlock); + if (dlmlock->l_ast_data) { + obj = osc2cl(dlmlock->l_ast_data); + cl_object_get(obj); + } + unlock_res_and_lock(dlmlock); + + if (obj) { /* Do not grab the mutex of cl_lock for glimpse. * See LU-1274 for details. * BTW, it's okay for cl_lock to be cancelled during @@ -866,7 +606,6 @@ static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data) result = req_capsule_server_pack(cap); if (result == 0) { lvb = req_capsule_server_get(cap, &RMF_DLM_LVB); - obj = lock->cll_descr.cld_obj; result = cl_object_glimpse(env, obj, lvb); } if (!exp_connect_lvb_type(req->rq_export)) @@ -874,7 +613,7 @@ static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data) &RMF_DLM_LVB, sizeof(struct ost_lvb_v1), RCL_SERVER); - osc_ast_data_put(env, olck); + cl_object_put(env, obj); } else { /* * These errors are normal races, so we don't want to @@ -905,23 +644,24 @@ static int weigh_cb(const struct lu_env *env, struct cl_io *io, } static unsigned long osc_lock_weight(const struct lu_env *env, - const struct osc_lock *ols) + struct osc_object *oscobj, + struct ldlm_extent *extent) { struct cl_io *io = &osc_env_info(env)->oti_io; - struct cl_lock_descr *descr = &ols->ols_cl.cls_lock->cll_descr; - struct cl_object *obj = ols->ols_cl.cls_obj; + struct cl_object *obj = cl_object_top(&oscobj->oo_cl); unsigned long npages = 0; int result; - io->ci_obj = cl_object_top(obj); + io->ci_obj = obj; io->ci_ignore_layout = 1; result = cl_io_init(env, io, CIT_MISC, io->ci_obj); if (result != 0) return result; do { - result = osc_page_gang_lookup(env, io, cl2osc(obj), - descr->cld_start, descr->cld_end, + result = osc_page_gang_lookup(env, io, oscobj, + cl_index(obj, extent->start), + cl_index(obj, extent->end), weigh_cb, (void *)&npages); if (result == CLP_GANG_ABORT) break; @@ -940,8 +680,10 @@ unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock) { struct cl_env_nest nest; struct lu_env *env; - struct osc_lock *lock; + struct osc_object *obj; + struct osc_lock *oscl; unsigned long weight; + bool found = false; might_sleep(); /* @@ -957,18 +699,28 @@ unsigned long osc_ldlm_weigh_ast(struct ldlm_lock *dlmlock) return 1; LASSERT(dlmlock->l_resource->lr_type == LDLM_EXTENT); - lock = osc_ast_data_get(dlmlock); - if (!lock) { - /* cl_lock was destroyed because of memory pressure. - * It is much reasonable to assign this type of lock - * a lower cost. + obj = dlmlock->l_ast_data; + if (obj) { + weight = 1; + goto out; + } + + spin_lock(&obj->oo_ol_spin); + list_for_each_entry(oscl, &obj->oo_ol_list, ols_nextlock_oscobj) { + if (oscl->ols_dlmlock && oscl->ols_dlmlock != dlmlock) + continue; + found = true; + } + spin_unlock(&obj->oo_ol_spin); + if (found) { + /* + * If the lock is being used by an IO, definitely not cancel it. */ - weight = 0; + weight = 1; goto out; } - weight = osc_lock_weight(env, lock); - osc_ast_data_put(env, lock); + weight = osc_lock_weight(env, obj, &dlmlock->l_policy_data.l_extent); out: cl_env_nested_put(&nest, env); @@ -976,27 +728,16 @@ out: } static void osc_lock_build_einfo(const struct lu_env *env, - const struct cl_lock *clock, - struct osc_lock *lock, + const struct cl_lock *lock, + struct osc_object *osc, struct ldlm_enqueue_info *einfo) { - enum cl_lock_mode mode; - - mode = clock->cll_descr.cld_mode; - if (mode == CLM_PHANTOM) - /* - * For now, enqueue all glimpse locks in read mode. In the - * future, client might choose to enqueue LCK_PW lock for - * glimpse on a file opened for write. - */ - mode = CLM_READ; - einfo->ei_type = LDLM_EXTENT; - einfo->ei_mode = osc_cl_lock2ldlm(mode); + einfo->ei_mode = osc_cl_lock2ldlm(lock->cll_descr.cld_mode); einfo->ei_cb_bl = osc_ldlm_blocking_ast; - einfo->ei_cb_cp = osc_ldlm_completion_ast; + einfo->ei_cb_cp = ldlm_completion_ast; einfo->ei_cb_gl = osc_ldlm_glimpse_ast; - einfo->ei_cbdata = lock; /* value to be put into ->l_ast_data */ + einfo->ei_cbdata = osc; /* value to be put into ->l_ast_data */ } /** @@ -1052,113 +793,100 @@ static void osc_lock_to_lockless(const struct lu_env *env, LASSERT(ergo(ols->ols_glimpse, !osc_lock_is_lockless(ols))); } -static int osc_lock_compatible(const struct osc_lock *qing, - const struct osc_lock *qed) +static bool osc_lock_compatible(const struct osc_lock *qing, + const struct osc_lock *qed) { - enum cl_lock_mode qing_mode; - enum cl_lock_mode qed_mode; + struct cl_lock_descr *qed_descr = &qed->ols_cl.cls_lock->cll_descr; + struct cl_lock_descr *qing_descr = &qing->ols_cl.cls_lock->cll_descr; - qing_mode = qing->ols_cl.cls_lock->cll_descr.cld_mode; - if (qed->ols_glimpse && - (qed->ols_state >= OLS_UPCALL_RECEIVED || qing_mode == CLM_READ)) - return 1; + if (qed->ols_glimpse) + return true; + + if (qing_descr->cld_mode == CLM_READ && qed_descr->cld_mode == CLM_READ) + return true; + + if (qed->ols_state < OLS_GRANTED) + return true; + + if (qed_descr->cld_mode >= qing_descr->cld_mode && + qed_descr->cld_start <= qing_descr->cld_start && + qed_descr->cld_end >= qing_descr->cld_end) + return true; - qed_mode = qed->ols_cl.cls_lock->cll_descr.cld_mode; - return ((qing_mode == CLM_READ) && (qed_mode == CLM_READ)); + return false; } -/** - * Cancel all conflicting locks and wait for them to be destroyed. - * - * This function is used for two purposes: - * - * - early cancel all conflicting locks before starting IO, and - * - * - guarantee that pages added to the page cache by lockless IO are never - * covered by locks other than lockless IO lock, and, hence, are not - * visible to other threads. - */ -static int osc_lock_enqueue_wait(const struct lu_env *env, - const struct osc_lock *olck) +static void osc_lock_wake_waiters(const struct lu_env *env, + struct osc_object *osc, + struct osc_lock *oscl) { - struct cl_lock *lock = olck->ols_cl.cls_lock; - struct cl_lock_descr *descr = &lock->cll_descr; - struct cl_object_header *hdr = cl_object_header(descr->cld_obj); - struct cl_lock *scan; - struct cl_lock *conflict = NULL; - int lockless = osc_lock_is_lockless(olck); - int rc = 0; + spin_lock(&osc->oo_ol_spin); + list_del_init(&oscl->ols_nextlock_oscobj); + spin_unlock(&osc->oo_ol_spin); - LASSERT(cl_lock_is_mutexed(lock)); + spin_lock(&oscl->ols_lock); + while (!list_empty(&oscl->ols_waiting_list)) { + struct osc_lock *scan; - /* make it enqueue anyway for glimpse lock, because we actually - * don't need to cancel any conflicting locks. - */ - if (olck->ols_glimpse) - return 0; + scan = list_entry(oscl->ols_waiting_list.next, struct osc_lock, + ols_wait_entry); + list_del_init(&scan->ols_wait_entry); + + cl_sync_io_note(env, scan->ols_owner, 0); + } + spin_unlock(&oscl->ols_lock); +} - spin_lock(&hdr->coh_lock_guard); - list_for_each_entry(scan, &hdr->coh_locks, cll_linkage) { - struct cl_lock_descr *cld = &scan->cll_descr; - const struct osc_lock *scan_ols; +static void osc_lock_enqueue_wait(const struct lu_env *env, + struct osc_object *obj, + struct osc_lock *oscl) +{ + struct osc_lock *tmp_oscl; + struct cl_lock_descr *need = &oscl->ols_cl.cls_lock->cll_descr; + struct cl_sync_io *waiter = &osc_env_info(env)->oti_anchor; + + spin_lock(&obj->oo_ol_spin); + list_add_tail(&oscl->ols_nextlock_oscobj, &obj->oo_ol_list); - if (scan == lock) +restart: + list_for_each_entry(tmp_oscl, &obj->oo_ol_list, + ols_nextlock_oscobj) { + struct cl_lock_descr *descr; + + if (tmp_oscl == oscl) break; - if (scan->cll_state < CLS_QUEUING || - scan->cll_state == CLS_FREEING || - cld->cld_start > descr->cld_end || - cld->cld_end < descr->cld_start) + descr = &tmp_oscl->ols_cl.cls_lock->cll_descr; + if (descr->cld_start > need->cld_end || + descr->cld_end < need->cld_start) continue; - /* overlapped and living locks. */ + /* We're not supposed to give up group lock */ + if (descr->cld_mode == CLM_GROUP) + break; - /* We're not supposed to give up group lock. */ - if (scan->cll_descr.cld_mode == CLM_GROUP) { - LASSERT(descr->cld_mode != CLM_GROUP || - descr->cld_gid != scan->cll_descr.cld_gid); + if (!osc_lock_is_lockless(oscl) && + osc_lock_compatible(oscl, tmp_oscl)) continue; - } - scan_ols = osc_lock_at(scan); + /* wait for conflicting lock to be canceled */ + cl_sync_io_init(waiter, 1, cl_sync_io_end); + oscl->ols_owner = waiter; - /* We need to cancel the compatible locks if we're enqueuing - * a lockless lock, for example: - * imagine that client has PR lock on [0, 1000], and thread T0 - * is doing lockless IO in [500, 1500] region. Concurrent - * thread T1 can see lockless data in [500, 1000], which is - * wrong, because these data are possibly stale. - */ - if (!lockless && osc_lock_compatible(olck, scan_ols)) - continue; + spin_lock(&tmp_oscl->ols_lock); + /* add oscl into tmp's ols_waiting list */ + list_add_tail(&oscl->ols_wait_entry, + &tmp_oscl->ols_waiting_list); + spin_unlock(&tmp_oscl->ols_lock); - cl_lock_get_trust(scan); - conflict = scan; - break; - } - spin_unlock(&hdr->coh_lock_guard); + spin_unlock(&obj->oo_ol_spin); + (void)cl_sync_io_wait(env, waiter, 0); - if (conflict) { - if (lock->cll_descr.cld_mode == CLM_GROUP) { - /* we want a group lock but a previous lock request - * conflicts, we do not wait but return 0 so the - * request is send to the server - */ - CDEBUG(D_DLMTRACE, "group lock %p is conflicted with %p, no wait, send to server\n", - lock, conflict); - cl_lock_put(env, conflict); - rc = 0; - } else { - CDEBUG(D_DLMTRACE, "lock %p is conflicted with %p, will wait\n", - lock, conflict); - LASSERT(!lock->cll_conflict); - lu_ref_add(&conflict->cll_reference, "cancel-wait", - lock); - lock->cll_conflict = conflict; - rc = CLO_WAIT; - } + spin_lock(&obj->oo_ol_spin); + oscl->ols_owner = NULL; + goto restart; } - return rc; + spin_unlock(&obj->oo_ol_spin); } /** @@ -1177,188 +905,122 @@ static int osc_lock_enqueue_wait(const struct lu_env *env, */ static int osc_lock_enqueue(const struct lu_env *env, const struct cl_lock_slice *slice, - struct cl_io *unused, __u32 enqflags) + struct cl_io *unused, struct cl_sync_io *anchor) { - struct osc_lock *ols = cl2osc_lock(slice); - struct cl_lock *lock = ols->ols_cl.cls_lock; + struct osc_thread_info *info = osc_env_info(env); + struct osc_io *oio = osc_env_io(env); + struct osc_object *osc = cl2osc(slice->cls_obj); + struct osc_lock *oscl = cl2osc_lock(slice); + struct cl_lock *lock = slice->cls_lock; + struct ldlm_res_id *resname = &info->oti_resname; + ldlm_policy_data_t *policy = &info->oti_policy; + osc_enqueue_upcall_f upcall = osc_lock_upcall; + void *cookie = oscl; + bool async = false; int result; - LASSERT(cl_lock_is_mutexed(lock)); - LASSERTF(ols->ols_state == OLS_NEW, - "Impossible state: %d\n", ols->ols_state); - - LASSERTF(ergo(ols->ols_glimpse, lock->cll_descr.cld_mode <= CLM_READ), - "lock = %p, ols = %p\n", lock, ols); + LASSERTF(ergo(oscl->ols_glimpse, lock->cll_descr.cld_mode <= CLM_READ), + "lock = %p, ols = %p\n", lock, oscl); - result = osc_lock_enqueue_wait(env, ols); - if (result == 0) { - if (!osc_lock_is_lockless(ols)) { - struct osc_object *obj = cl2osc(slice->cls_obj); - struct osc_thread_info *info = osc_env_info(env); - struct ldlm_res_id *resname = &info->oti_resname; - ldlm_policy_data_t *policy = &info->oti_policy; - struct ldlm_enqueue_info *einfo = &ols->ols_einfo; + if (oscl->ols_state == OLS_GRANTED) + return 0; - /* lock will be passed as upcall cookie, - * hold ref to prevent to be released. - */ - cl_lock_hold_add(env, lock, "upcall", lock); - /* a user for lock also */ - cl_lock_user_add(env, lock); - ols->ols_state = OLS_ENQUEUED; + if (oscl->ols_flags & LDLM_FL_TEST_LOCK) + goto enqueue_base; - /* - * XXX: this is possible blocking point as - * ldlm_lock_match(LDLM_FL_LVB_READY) waits for - * LDLM_CP_CALLBACK. - */ - ostid_build_res_name(&obj->oo_oinfo->loi_oi, resname); - osc_lock_build_policy(env, lock, policy); - result = osc_enqueue_base(osc_export(obj), resname, - &ols->ols_flags, policy, - &ols->ols_lvb, - obj->oo_oinfo->loi_kms_valid, - osc_lock_upcall, - ols, einfo, &ols->ols_handle, - PTLRPCD_SET, 1, ols->ols_agl); - if (result != 0) { - cl_lock_user_del(env, lock); - cl_lock_unhold(env, lock, "upcall", lock); - if (unlikely(result == -ECANCELED)) { - ols->ols_state = OLS_NEW; - result = 0; - } - } - } else { - ols->ols_state = OLS_GRANTED; - ols->ols_owner = osc_env_io(env); - } + if (oscl->ols_glimpse) { + LASSERT(equi(oscl->ols_agl, !anchor)); + async = true; + goto enqueue_base; } - LASSERT(ergo(ols->ols_glimpse, !osc_lock_is_lockless(ols))); - return result; -} -static int osc_lock_wait(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct osc_lock *olck = cl2osc_lock(slice); - struct cl_lock *lock = olck->ols_cl.cls_lock; - - LINVRNT(osc_lock_invariant(olck)); - - if (olck->ols_glimpse && olck->ols_state >= OLS_UPCALL_RECEIVED) { - if (olck->ols_flags & LDLM_FL_LVB_READY) { - return 0; - } else if (olck->ols_agl) { - if (lock->cll_flags & CLF_FROM_UPCALL) - /* It is from enqueue RPC reply upcall for - * updating state. Do not re-enqueue. - */ - return -ENAVAIL; - olck->ols_state = OLS_NEW; - } else { - LASSERT(lock->cll_error); - return lock->cll_error; - } + osc_lock_enqueue_wait(env, osc, oscl); + + /* we can grant lockless lock right after all conflicting locks + * are canceled. + */ + if (osc_lock_is_lockless(oscl)) { + oscl->ols_state = OLS_GRANTED; + oio->oi_lockless = 1; + return 0; } - if (olck->ols_state == OLS_NEW) { - int rc; - - LASSERT(olck->ols_agl); - olck->ols_agl = 0; - olck->ols_flags &= ~LDLM_FL_BLOCK_NOWAIT; - rc = osc_lock_enqueue(env, slice, NULL, CEF_ASYNC | CEF_MUST); - if (rc != 0) - return rc; - else - return CLO_REENQUEUED; +enqueue_base: + oscl->ols_state = OLS_ENQUEUED; + if (anchor) { + atomic_inc(&anchor->csi_sync_nr); + oscl->ols_owner = anchor; } - LASSERT(equi(olck->ols_state >= OLS_UPCALL_RECEIVED && - lock->cll_error == 0, olck->ols_lock)); + /** + * DLM lock's ast data must be osc_object; + * if glimpse or AGL lock, async of osc_enqueue_base() must be true, + * DLM's enqueue callback set to osc_lock_upcall() with cookie as + * osc_lock. + */ + ostid_build_res_name(&osc->oo_oinfo->loi_oi, resname); + osc_lock_build_einfo(env, lock, osc, &oscl->ols_einfo); + osc_lock_build_policy(env, lock, policy); + if (oscl->ols_agl) { + oscl->ols_einfo.ei_cbdata = NULL; + /* hold a reference for callback */ + cl_object_get(osc2cl(osc)); + upcall = osc_lock_upcall_agl; + cookie = osc; + } + result = osc_enqueue_base(osc_export(osc), resname, &oscl->ols_flags, + policy, &oscl->ols_lvb, + osc->oo_oinfo->loi_kms_valid, + upcall, cookie, + &oscl->ols_einfo, PTLRPCD_SET, async, + oscl->ols_agl); + if (result != 0) { + oscl->ols_state = OLS_CANCELLED; + osc_lock_wake_waiters(env, osc, oscl); - return lock->cll_error ?: olck->ols_state >= OLS_GRANTED ? 0 : CLO_WAIT; + /* hide error for AGL lock. */ + if (oscl->ols_agl) { + cl_object_put(env, osc2cl(osc)); + result = 0; + } + if (anchor) + cl_sync_io_note(env, anchor, result); + } else { + if (osc_lock_is_lockless(oscl)) { + oio->oi_lockless = 1; + } else if (!async) { + LASSERT(oscl->ols_state == OLS_GRANTED); + LASSERT(oscl->ols_hold); + LASSERT(oscl->ols_dlmlock); + } + } + return result; } /** - * An implementation of cl_lock_operations::clo_use() method that pins cached - * lock. + * Breaks a link between osc_lock and dlm_lock. */ -static int osc_lock_use(const struct lu_env *env, - const struct cl_lock_slice *slice) +static void osc_lock_detach(const struct lu_env *env, struct osc_lock *olck) { - struct osc_lock *olck = cl2osc_lock(slice); - int rc; - - LASSERT(!olck->ols_hold); + struct ldlm_lock *dlmlock; - /* - * Atomically check for LDLM_FL_CBPENDING and addref a lock if this - * flag is not set. This protects us from a concurrent blocking ast. - */ - rc = ldlm_lock_addref_try(&olck->ols_handle, olck->ols_einfo.ei_mode); - if (rc == 0) { - olck->ols_hold = 1; - olck->ols_state = OLS_GRANTED; - } else { - struct cl_lock *lock; + dlmlock = olck->ols_dlmlock; + if (!dlmlock) + return; - /* - * Lock is being cancelled somewhere within - * ldlm_handle_bl_callback(): LDLM_FL_CBPENDING is already - * set, but osc_ldlm_blocking_ast() hasn't yet acquired - * cl_lock mutex. - */ - lock = slice->cls_lock; - LASSERT(lock->cll_state == CLS_INTRANSIT); - LASSERT(lock->cll_users > 0); - /* set a flag for osc_dlm_blocking_ast0() to signal the - * lock. - */ - olck->ols_ast_wait = 1; - rc = CLO_WAIT; + if (olck->ols_hold) { + olck->ols_hold = 0; + osc_cancel_base(&olck->ols_handle, olck->ols_einfo.ei_mode); + olck->ols_handle.cookie = 0ULL; } - return rc; -} -static int osc_lock_flush(struct osc_lock *ols, int discard) -{ - struct cl_lock *lock = ols->ols_cl.cls_lock; - struct cl_env_nest nest; - struct lu_env *env; - int result = 0; + olck->ols_dlmlock = NULL; - env = cl_env_nested_get(&nest); - if (!IS_ERR(env)) { - struct osc_object *obj = cl2osc(ols->ols_cl.cls_obj); - struct cl_lock_descr *descr = &lock->cll_descr; - int rc = 0; - - if (descr->cld_mode >= CLM_WRITE) { - result = osc_cache_writeback_range(env, obj, - descr->cld_start, - descr->cld_end, - 1, discard); - LDLM_DEBUG(ols->ols_lock, - "lock %p: %d pages were %s.\n", lock, result, - discard ? "discarded" : "written"); - if (result > 0) - result = 0; - } - - rc = osc_lock_discard_pages(env, ols); - if (result == 0 && rc < 0) - result = rc; - - cl_env_nested_put(&nest, env); - } else - result = PTR_ERR(env); - if (result == 0) { - ols->ols_flush = 1; - LINVRNT(!osc_lock_has_pages(ols)); - } - return result; + /* release a reference taken in osc_lock_upcall(). */ + LASSERT(olck->ols_has_ref); + lu_ref_del(&dlmlock->l_reference, "osc_lock", olck); + LDLM_LOCK_RELEASE(dlmlock); + olck->ols_has_ref = 0; } /** @@ -1378,96 +1040,16 @@ static int osc_lock_flush(struct osc_lock *ols, int discard) static void osc_lock_cancel(const struct lu_env *env, const struct cl_lock_slice *slice) { - struct cl_lock *lock = slice->cls_lock; - struct osc_lock *olck = cl2osc_lock(slice); - struct ldlm_lock *dlmlock = olck->ols_lock; - int result = 0; - int discard; - - LASSERT(cl_lock_is_mutexed(lock)); - LINVRNT(osc_lock_invariant(olck)); - - if (dlmlock) { - int do_cancel; - - discard = !!(dlmlock->l_flags & LDLM_FL_DISCARD_DATA); - if (olck->ols_state >= OLS_GRANTED) - result = osc_lock_flush(olck, discard); - osc_lock_unhold(olck); - - lock_res_and_lock(dlmlock); - /* Now that we're the only user of dlm read/write reference, - * mostly the ->l_readers + ->l_writers should be zero. - * However, there is a corner case. - * See bug 18829 for details. - */ - do_cancel = (dlmlock->l_readers == 0 && - dlmlock->l_writers == 0); - dlmlock->l_flags |= LDLM_FL_CBPENDING; - unlock_res_and_lock(dlmlock); - if (do_cancel) - result = ldlm_cli_cancel(&olck->ols_handle, LCF_ASYNC); - if (result < 0) - CL_LOCK_DEBUG(D_ERROR, env, lock, - "lock %p cancel failure with error(%d)\n", - lock, result); - } - olck->ols_state = OLS_CANCELLED; - olck->ols_flags &= ~LDLM_FL_LVB_READY; - osc_lock_detach(env, olck); -} - -static int osc_lock_has_pages(struct osc_lock *olck) -{ - return 0; -} - -static void osc_lock_delete(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct osc_lock *olck; - - olck = cl2osc_lock(slice); - if (olck->ols_glimpse) { - LASSERT(!olck->ols_hold); - LASSERT(!olck->ols_lock); - return; - } - - LINVRNT(osc_lock_invariant(olck)); - LINVRNT(!osc_lock_has_pages(olck)); - - osc_lock_unhold(olck); - osc_lock_detach(env, olck); -} + struct osc_object *obj = cl2osc(slice->cls_obj); + struct osc_lock *oscl = cl2osc_lock(slice); -/** - * Implements cl_lock_operations::clo_state() method for osc layer. - * - * Maintains osc_lock::ols_owner field. - * - * This assumes that lock always enters CLS_HELD (from some other state) in - * the same IO context as one that requested the lock. This should not be a - * problem, because context is by definition shared by all activity pertaining - * to the same high-level IO. - */ -static void osc_lock_state(const struct lu_env *env, - const struct cl_lock_slice *slice, - enum cl_lock_state state) -{ - struct osc_lock *lock = cl2osc_lock(slice); + LINVRNT(osc_lock_invariant(oscl)); - /* - * XXX multiple io contexts can use the lock at the same time. - */ - LINVRNT(osc_lock_invariant(lock)); - if (state == CLS_HELD && slice->cls_lock->cll_state != CLS_HELD) { - struct osc_io *oio = osc_env_io(env); + osc_lock_detach(env, oscl); + oscl->ols_state = OLS_CANCELLED; + oscl->ols_flags &= ~LDLM_FL_LVB_READY; - LASSERT(!lock->ols_owner); - lock->ols_owner = oio; - } else if (state != CLS_HELD) - lock->ols_owner = NULL; + osc_lock_wake_waiters(env, obj, oscl); } static int osc_lock_print(const struct lu_env *env, void *cookie, @@ -1475,197 +1057,161 @@ static int osc_lock_print(const struct lu_env *env, void *cookie, { struct osc_lock *lock = cl2osc_lock(slice); - /* - * XXX print ldlm lock and einfo properly. - */ (*p)(env, cookie, "%p %#16llx %#llx %d %p ", - lock->ols_lock, lock->ols_flags, lock->ols_handle.cookie, + lock->ols_dlmlock, lock->ols_flags, lock->ols_handle.cookie, lock->ols_state, lock->ols_owner); osc_lvb_print(env, cookie, p, &lock->ols_lvb); return 0; } -static int osc_lock_fits_into(const struct lu_env *env, - const struct cl_lock_slice *slice, - const struct cl_lock_descr *need, - const struct cl_io *io) -{ - struct osc_lock *ols = cl2osc_lock(slice); - - if (need->cld_enq_flags & CEF_NEVER) - return 0; - - if (ols->ols_state >= OLS_CANCELLED) - return 0; - - if (need->cld_mode == CLM_PHANTOM) { - if (ols->ols_agl) - return !(ols->ols_state > OLS_RELEASED); - - /* - * Note: the QUEUED lock can't be matched here, otherwise - * it might cause the deadlocks. - * In read_process, - * P1: enqueued read lock, create sublock1 - * P2: enqueued write lock, create sublock2(conflicted - * with sublock1). - * P1: Grant read lock. - * P1: enqueued glimpse lock(with holding sublock1_read), - * matched with sublock2, waiting sublock2 to be granted. - * But sublock2 can not be granted, because P1 - * will not release sublock1. Bang! - */ - if (ols->ols_state < OLS_GRANTED || - ols->ols_state > OLS_RELEASED) - return 0; - } else if (need->cld_enq_flags & CEF_MUST) { - /* - * If the lock hasn't ever enqueued, it can't be matched - * because enqueue process brings in many information - * which can be used to determine things such as lockless, - * CEF_MUST, etc. - */ - if (ols->ols_state < OLS_UPCALL_RECEIVED && - ols->ols_locklessable) - return 0; - } - return 1; -} - static const struct cl_lock_operations osc_lock_ops = { .clo_fini = osc_lock_fini, .clo_enqueue = osc_lock_enqueue, - .clo_wait = osc_lock_wait, - .clo_unuse = osc_lock_unuse, - .clo_use = osc_lock_use, - .clo_delete = osc_lock_delete, - .clo_state = osc_lock_state, .clo_cancel = osc_lock_cancel, .clo_print = osc_lock_print, - .clo_fits_into = osc_lock_fits_into, }; -static int osc_lock_lockless_unuse(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct osc_lock *ols = cl2osc_lock(slice); - struct cl_lock *lock = slice->cls_lock; - - LASSERT(ols->ols_state == OLS_GRANTED); - LINVRNT(osc_lock_invariant(ols)); - - cl_lock_cancel(env, lock); - cl_lock_delete(env, lock); - return 0; -} - static void osc_lock_lockless_cancel(const struct lu_env *env, const struct cl_lock_slice *slice) { struct osc_lock *ols = cl2osc_lock(slice); + struct osc_object *osc = cl2osc(slice->cls_obj); + struct cl_lock_descr *descr = &slice->cls_lock->cll_descr; int result; - result = osc_lock_flush(ols, 0); + LASSERT(!ols->ols_dlmlock); + result = osc_lock_flush(osc, descr->cld_start, descr->cld_end, + descr->cld_mode, 0); if (result) CERROR("Pages for lockless lock %p were not purged(%d)\n", ols, result); - ols->ols_state = OLS_CANCELLED; -} -static int osc_lock_lockless_wait(const struct lu_env *env, - const struct cl_lock_slice *slice) -{ - struct osc_lock *olck = cl2osc_lock(slice); - struct cl_lock *lock = olck->ols_cl.cls_lock; - - LINVRNT(osc_lock_invariant(olck)); - LASSERT(olck->ols_state >= OLS_UPCALL_RECEIVED); - - return lock->cll_error; + osc_lock_wake_waiters(env, osc, ols); } -static void osc_lock_lockless_state(const struct lu_env *env, - const struct cl_lock_slice *slice, - enum cl_lock_state state) -{ - struct osc_lock *lock = cl2osc_lock(slice); +static const struct cl_lock_operations osc_lock_lockless_ops = { + .clo_fini = osc_lock_fini, + .clo_enqueue = osc_lock_enqueue, + .clo_cancel = osc_lock_lockless_cancel, + .clo_print = osc_lock_print +}; - LINVRNT(osc_lock_invariant(lock)); - if (state == CLS_HELD) { - struct osc_io *oio = osc_env_io(env); +static void osc_lock_set_writer(const struct lu_env *env, + const struct cl_io *io, + struct cl_object *obj, struct osc_lock *oscl) +{ + struct cl_lock_descr *descr = &oscl->ols_cl.cls_lock->cll_descr; + pgoff_t io_start; + pgoff_t io_end; - LASSERT(ergo(lock->ols_owner, lock->ols_owner == oio)); - lock->ols_owner = oio; + if (!cl_object_same(io->ci_obj, obj)) + return; - /* set the io to be lockless if this lock is for io's - * host object - */ - if (cl_object_same(oio->oi_cl.cis_obj, slice->cls_obj)) - oio->oi_lockless = 1; + if (likely(io->ci_type == CIT_WRITE)) { + io_start = cl_index(obj, io->u.ci_rw.crw_pos); + io_end = cl_index(obj, io->u.ci_rw.crw_pos + + io->u.ci_rw.crw_count - 1); + if (cl_io_is_append(io)) { + io_start = 0; + io_end = CL_PAGE_EOF; + } + } else { + LASSERT(cl_io_is_mkwrite(io)); + io_start = io_end = io->u.ci_fault.ft_index; } -} -static int osc_lock_lockless_fits_into(const struct lu_env *env, - const struct cl_lock_slice *slice, - const struct cl_lock_descr *need, - const struct cl_io *io) -{ - struct osc_lock *lock = cl2osc_lock(slice); - - if (!(need->cld_enq_flags & CEF_NEVER)) - return 0; + if (descr->cld_mode >= CLM_WRITE && + descr->cld_start <= io_start && descr->cld_end >= io_end) { + struct osc_io *oio = osc_env_io(env); - /* lockless lock should only be used by its owning io. b22147 */ - return (lock->ols_owner == osc_env_io(env)); + /* There must be only one lock to match the write region */ + LASSERT(!oio->oi_write_osclock); + oio->oi_write_osclock = oscl; + } } -static const struct cl_lock_operations osc_lock_lockless_ops = { - .clo_fini = osc_lock_fini, - .clo_enqueue = osc_lock_enqueue, - .clo_wait = osc_lock_lockless_wait, - .clo_unuse = osc_lock_lockless_unuse, - .clo_state = osc_lock_lockless_state, - .clo_fits_into = osc_lock_lockless_fits_into, - .clo_cancel = osc_lock_lockless_cancel, - .clo_print = osc_lock_print -}; - int osc_lock_init(const struct lu_env *env, struct cl_object *obj, struct cl_lock *lock, - const struct cl_io *unused) + const struct cl_io *io) { - struct osc_lock *clk; - int result; + struct osc_lock *oscl; + __u32 enqflags = lock->cll_descr.cld_enq_flags; + + oscl = kmem_cache_zalloc(osc_lock_kmem, GFP_NOFS); + if (!oscl) + return -ENOMEM; + + oscl->ols_state = OLS_NEW; + spin_lock_init(&oscl->ols_lock); + INIT_LIST_HEAD(&oscl->ols_waiting_list); + INIT_LIST_HEAD(&oscl->ols_wait_entry); + INIT_LIST_HEAD(&oscl->ols_nextlock_oscobj); + + oscl->ols_flags = osc_enq2ldlm_flags(enqflags); + oscl->ols_agl = !!(enqflags & CEF_AGL); + if (oscl->ols_agl) + oscl->ols_flags |= LDLM_FL_BLOCK_NOWAIT; + if (oscl->ols_flags & LDLM_FL_HAS_INTENT) { + oscl->ols_flags |= LDLM_FL_BLOCK_GRANTED; + oscl->ols_glimpse = 1; + } - clk = kmem_cache_zalloc(osc_lock_kmem, GFP_NOFS); - if (clk) { - __u32 enqflags = lock->cll_descr.cld_enq_flags; + cl_lock_slice_add(lock, &oscl->ols_cl, obj, &osc_lock_ops); - osc_lock_build_einfo(env, lock, clk, &clk->ols_einfo); - clk->ols_state = OLS_NEW; + if (!(enqflags & CEF_MUST)) + /* try to convert this lock to a lockless lock */ + osc_lock_to_lockless(env, oscl, (enqflags & CEF_NEVER)); + if (oscl->ols_locklessable && !(enqflags & CEF_DISCARD_DATA)) + oscl->ols_flags |= LDLM_FL_DENY_ON_CONTENTION; - clk->ols_flags = osc_enq2ldlm_flags(enqflags); - clk->ols_agl = !!(enqflags & CEF_AGL); - if (clk->ols_agl) - clk->ols_flags |= LDLM_FL_BLOCK_NOWAIT; - if (clk->ols_flags & LDLM_FL_HAS_INTENT) - clk->ols_glimpse = 1; + if (io->ci_type == CIT_WRITE || cl_io_is_mkwrite(io)) + osc_lock_set_writer(env, io, obj, oscl); - cl_lock_slice_add(lock, &clk->ols_cl, obj, &osc_lock_ops); - if (!(enqflags & CEF_MUST)) - /* try to convert this lock to a lockless lock */ - osc_lock_to_lockless(env, clk, (enqflags & CEF_NEVER)); - if (clk->ols_locklessable && !(enqflags & CEF_DISCARD_DATA)) - clk->ols_flags |= LDLM_FL_DENY_ON_CONTENTION; + LDLM_DEBUG_NOLOCK("lock %p, osc lock %p, flags %llx\n", + lock, oscl, oscl->ols_flags); - LDLM_DEBUG_NOLOCK("lock %p, osc lock %p, flags %llx", - lock, clk, clk->ols_flags); + return 0; +} - result = 0; - } else - result = -ENOMEM; - return result; +/** + * Finds an existing lock covering given index and optionally different from a + * given \a except lock. + */ +struct ldlm_lock *osc_dlmlock_at_pgoff(const struct lu_env *env, + struct osc_object *obj, pgoff_t index, + int pending, int canceling) +{ + struct osc_thread_info *info = osc_env_info(env); + struct ldlm_res_id *resname = &info->oti_resname; + ldlm_policy_data_t *policy = &info->oti_policy; + struct lustre_handle lockh; + struct ldlm_lock *lock = NULL; + enum ldlm_mode mode; + __u64 flags; + + ostid_build_res_name(&obj->oo_oinfo->loi_oi, resname); + osc_index2policy(policy, osc2cl(obj), index, index); + policy->l_extent.gid = LDLM_GID_ANY; + + flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_TEST_LOCK; + if (pending) + flags |= LDLM_FL_CBPENDING; + /* + * It is fine to match any group lock since there could be only one + * with a uniq gid and it conflicts with all other lock modes too + */ +again: + mode = ldlm_lock_match(osc_export(obj)->exp_obd->obd_namespace, + flags, resname, LDLM_EXTENT, policy, + LCK_PR | LCK_PW | LCK_GROUP, &lockh, canceling); + if (mode != 0) { + lock = ldlm_handle2lock(&lockh); + /* RACE: the lock is cancelled so let's try again */ + if (unlikely(!lock)) + goto again; + } + return lock; } /** @} osc */ diff --git a/drivers/staging/lustre/lustre/osc/osc_object.c b/drivers/staging/lustre/lustre/osc/osc_object.c index 2d2d39a..a06bdf1 100644 --- a/drivers/staging/lustre/lustre/osc/osc_object.c +++ b/drivers/staging/lustre/lustre/osc/osc_object.c @@ -96,6 +96,8 @@ static int osc_object_init(const struct lu_env *env, struct lu_object *obj, atomic_set(&osc->oo_nr_writes, 0); spin_lock_init(&osc->oo_lock); spin_lock_init(&osc->oo_tree_lock); + spin_lock_init(&osc->oo_ol_spin); + INIT_LIST_HEAD(&osc->oo_ol_list); cl_object_page_init(lu2cl(obj), sizeof(struct osc_page)); @@ -122,6 +124,7 @@ static void osc_object_free(const struct lu_env *env, struct lu_object *obj) LASSERT(list_empty(&osc->oo_reading_exts)); LASSERT(atomic_read(&osc->oo_nr_reads) == 0); LASSERT(atomic_read(&osc->oo_nr_writes) == 0); + LASSERT(list_empty(&osc->oo_ol_list)); lu_object_fini(obj); kmem_cache_free(osc_object_kmem, osc); @@ -194,6 +197,32 @@ static int osc_object_glimpse(const struct lu_env *env, return 0; } +static int osc_object_ast_clear(struct ldlm_lock *lock, void *data) +{ + LASSERT(lock->l_granted_mode == lock->l_req_mode); + if (lock->l_ast_data == data) + lock->l_ast_data = NULL; + return LDLM_ITER_CONTINUE; +} + +static int osc_object_prune(const struct lu_env *env, struct cl_object *obj) +{ + struct osc_object *osc = cl2osc(obj); + struct ldlm_res_id *resname = &osc_env_info(env)->oti_resname; + + LASSERTF(osc->oo_npages == 0, + DFID "still have %lu pages, obj: %p, osc: %p\n", + PFID(lu_object_fid(&obj->co_lu)), osc->oo_npages, obj, osc); + + /* DLM locks don't hold a reference of osc_object so we have to + * clear it before the object is being destroyed. + */ + ostid_build_res_name(&osc->oo_oinfo->loi_oi, resname); + ldlm_resource_iterate(osc_export(osc)->exp_obd->obd_namespace, resname, + osc_object_ast_clear, osc); + return 0; +} + void osc_object_set_contended(struct osc_object *obj) { obj->oo_contention_time = cfs_time_current(); @@ -238,12 +267,12 @@ static const struct cl_object_operations osc_ops = { .coo_io_init = osc_io_init, .coo_attr_get = osc_attr_get, .coo_attr_set = osc_attr_set, - .coo_glimpse = osc_object_glimpse + .coo_glimpse = osc_object_glimpse, + .coo_prune = osc_object_prune }; static const struct lu_object_operations osc_lu_obj_ops = { .loo_object_init = osc_object_init, - .loo_object_delete = NULL, .loo_object_release = NULL, .loo_object_free = osc_object_free, .loo_object_print = osc_object_print, diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index 5b31351..82979f4 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -135,15 +135,15 @@ static int osc_page_is_under_lock(const struct lu_env *env, struct cl_io *unused, pgoff_t *max_index) { struct osc_page *opg = cl2osc_page(slice); - struct cl_lock *lock; + struct ldlm_lock *dlmlock; int result = -ENODATA; - *max_index = 0; - lock = cl_lock_at_pgoff(env, slice->cpl_obj, osc_index(opg), - NULL, 1, 0); - if (lock) { - *max_index = lock->cll_descr.cld_end; - cl_lock_put(env, lock); + dlmlock = osc_dlmlock_at_pgoff(env, cl2osc(slice->cpl_obj), + osc_index(opg), 1, 0); + if (dlmlock) { + *max_index = cl_index(slice->cpl_obj, + dlmlock->l_policy_data.l_extent.end); + LDLM_LOCK_PUT(dlmlock); result = 0; } return result; diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 372bd26..368b997 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -92,12 +92,13 @@ struct osc_fsync_args { struct osc_enqueue_args { struct obd_export *oa_exp; + enum ldlm_type oa_type; + enum ldlm_mode oa_mode; __u64 *oa_flags; - obd_enqueue_update_f oa_upcall; + osc_enqueue_upcall_f oa_upcall; void *oa_cookie; struct ost_lvb *oa_lvb; - struct lustre_handle *oa_lockh; - struct ldlm_enqueue_info *oa_ei; + struct lustre_handle oa_lockh; unsigned int oa_agl:1; }; @@ -2068,14 +2069,12 @@ static int osc_set_lock_data_with_check(struct ldlm_lock *lock, LASSERT(lock->l_glimpse_ast == einfo->ei_cb_gl); lock_res_and_lock(lock); - spin_lock(&osc_ast_guard); if (!lock->l_ast_data) lock->l_ast_data = data; if (lock->l_ast_data == data) set = 1; - spin_unlock(&osc_ast_guard); unlock_res_and_lock(lock); return set; @@ -2117,36 +2116,38 @@ static int osc_find_cbdata(struct obd_export *exp, struct lov_stripe_md *lsm, return rc; } -static int osc_enqueue_fini(struct ptlrpc_request *req, struct ost_lvb *lvb, - obd_enqueue_update_f upcall, void *cookie, - __u64 *flags, int agl, int rc) +static int osc_enqueue_fini(struct ptlrpc_request *req, + osc_enqueue_upcall_f upcall, void *cookie, + struct lustre_handle *lockh, enum ldlm_mode mode, + __u64 *flags, int agl, int errcode) { - int intent = *flags & LDLM_FL_HAS_INTENT; - - if (intent) { - /* The request was created before ldlm_cli_enqueue call. */ - if (rc == ELDLM_LOCK_ABORTED) { - struct ldlm_reply *rep; + bool intent = *flags & LDLM_FL_HAS_INTENT; + int rc; - rep = req_capsule_server_get(&req->rq_pill, - &RMF_DLM_REP); + /* The request was created before ldlm_cli_enqueue call. */ + if (intent && errcode == ELDLM_LOCK_ABORTED) { + struct ldlm_reply *rep; - rep->lock_policy_res1 = - ptlrpc_status_ntoh(rep->lock_policy_res1); - if (rep->lock_policy_res1) - rc = rep->lock_policy_res1; - } - } + rep = req_capsule_server_get(&req->rq_pill, &RMF_DLM_REP); - if ((intent != 0 && rc == ELDLM_LOCK_ABORTED && agl == 0) || - (rc == 0)) { + rep->lock_policy_res1 = + ptlrpc_status_ntoh(rep->lock_policy_res1); + if (rep->lock_policy_res1) + errcode = rep->lock_policy_res1; + if (!agl) + *flags |= LDLM_FL_LVB_READY; + } else if (errcode == ELDLM_OK) { *flags |= LDLM_FL_LVB_READY; - CDEBUG(D_INODE, "got kms %llu blocks %llu mtime %llu\n", - lvb->lvb_size, lvb->lvb_blocks, lvb->lvb_mtime); } /* Call the update callback. */ - rc = (*upcall)(cookie, rc); + rc = (*upcall)(cookie, lockh, errcode); + /* release the reference taken in ldlm_cli_enqueue() */ + if (errcode == ELDLM_LOCK_MATCHED) + errcode = ELDLM_OK; + if (errcode == ELDLM_OK && lustre_handle_is_used(lockh)) + ldlm_lock_decref(lockh, mode); + return rc; } @@ -2155,62 +2156,47 @@ static int osc_enqueue_interpret(const struct lu_env *env, struct osc_enqueue_args *aa, int rc) { struct ldlm_lock *lock; - struct lustre_handle handle; - __u32 mode; - struct ost_lvb *lvb; - __u32 lvb_len; - __u64 *flags = aa->oa_flags; - - /* Make a local copy of a lock handle and a mode, because aa->oa_* - * might be freed anytime after lock upcall has been called. - */ - lustre_handle_copy(&handle, aa->oa_lockh); - mode = aa->oa_ei->ei_mode; + struct lustre_handle *lockh = &aa->oa_lockh; + enum ldlm_mode mode = aa->oa_mode; + struct ost_lvb *lvb = aa->oa_lvb; + __u32 lvb_len = sizeof(*lvb); + __u64 flags = 0; + /* ldlm_cli_enqueue is holding a reference on the lock, so it must * be valid. */ - lock = ldlm_handle2lock(&handle); + lock = ldlm_handle2lock(lockh); + LASSERTF(lock, "lockh %llx, req %p, aa %p - client evicted?\n", + lockh->cookie, req, aa); /* Take an additional reference so that a blocking AST that * ldlm_cli_enqueue_fini() might post for a failed lock, is guaranteed * to arrive after an upcall has been executed by * osc_enqueue_fini(). */ - ldlm_lock_addref(&handle, mode); + ldlm_lock_addref(lockh, mode); /* Let CP AST to grant the lock first. */ OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_CP_ENQ_RACE, 1); - if (aa->oa_agl && rc == ELDLM_LOCK_ABORTED) { - lvb = NULL; - lvb_len = 0; - } else { - lvb = aa->oa_lvb; - lvb_len = sizeof(*aa->oa_lvb); + if (aa->oa_agl) { + LASSERT(!aa->oa_lvb); + LASSERT(!aa->oa_flags); + aa->oa_flags = &flags; } /* Complete obtaining the lock procedure. */ - rc = ldlm_cli_enqueue_fini(aa->oa_exp, req, aa->oa_ei->ei_type, 1, - mode, flags, lvb, lvb_len, &handle, rc); + rc = ldlm_cli_enqueue_fini(aa->oa_exp, req, aa->oa_type, 1, + aa->oa_mode, aa->oa_flags, lvb, lvb_len, + lockh, rc); /* Complete osc stuff. */ - rc = osc_enqueue_fini(req, aa->oa_lvb, aa->oa_upcall, aa->oa_cookie, - flags, aa->oa_agl, rc); + rc = osc_enqueue_fini(req, aa->oa_upcall, aa->oa_cookie, lockh, mode, + aa->oa_flags, aa->oa_agl, rc); OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_CP_CANCEL_RACE, 10); - /* Release the lock for async request. */ - if (lustre_handle_is_used(&handle) && rc == ELDLM_OK) - /* - * Releases a reference taken by ldlm_cli_enqueue(), if it is - * not already released by - * ldlm_cli_enqueue_fini()->failed_lock_cleanup() - */ - ldlm_lock_decref(&handle, mode); - - LASSERTF(lock, "lockh %p, req %p, aa %p - client evicted?\n", - aa->oa_lockh, req, aa); - ldlm_lock_decref(&handle, mode); + ldlm_lock_decref(lockh, mode); LDLM_LOCK_PUT(lock); return rc; } @@ -2222,21 +2208,21 @@ struct ptlrpc_request_set *PTLRPCD_SET = (void *)1; * other synchronous requests, however keeping some locks and trying to obtain * others may take a considerable amount of time in a case of ost failure; and * when other sync requests do not get released lock from a client, the client - * is excluded from the cluster -- such scenarious make the life difficult, so + * is evicted from the cluster -- such scenaries make the life difficult, so * release locks just after they are obtained. */ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, __u64 *flags, ldlm_policy_data_t *policy, struct ost_lvb *lvb, int kms_valid, - obd_enqueue_update_f upcall, void *cookie, + osc_enqueue_upcall_f upcall, void *cookie, struct ldlm_enqueue_info *einfo, - struct lustre_handle *lockh, struct ptlrpc_request_set *rqset, int async, int agl) { struct obd_device *obd = exp->exp_obd; + struct lustre_handle lockh = { 0 }; struct ptlrpc_request *req = NULL; int intent = *flags & LDLM_FL_HAS_INTENT; - __u64 match_lvb = (agl != 0 ? 0 : LDLM_FL_LVB_READY); + __u64 match_lvb = agl ? 0 : LDLM_FL_LVB_READY; enum ldlm_mode mode; int rc; @@ -2272,55 +2258,39 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, if (einfo->ei_mode == LCK_PR) mode |= LCK_PW; mode = ldlm_lock_match(obd->obd_namespace, *flags | match_lvb, res_id, - einfo->ei_type, policy, mode, lockh, 0); + einfo->ei_type, policy, mode, &lockh, 0); if (mode) { - struct ldlm_lock *matched = ldlm_handle2lock(lockh); + struct ldlm_lock *matched; - if ((agl != 0) && !(matched->l_flags & LDLM_FL_LVB_READY)) { - /* For AGL, if enqueue RPC is sent but the lock is not - * granted, then skip to process this strpe. - * Return -ECANCELED to tell the caller. + if (*flags & LDLM_FL_TEST_LOCK) + return ELDLM_OK; + + matched = ldlm_handle2lock(&lockh); + if (agl) { + /* AGL enqueues DLM locks speculatively. Therefore if + * it already exists a DLM lock, it wll just inform the + * caller to cancel the AGL process for this stripe. */ - ldlm_lock_decref(lockh, mode); + ldlm_lock_decref(&lockh, mode); LDLM_LOCK_PUT(matched); return -ECANCELED; - } - - if (osc_set_lock_data_with_check(matched, einfo)) { + } else if (osc_set_lock_data_with_check(matched, einfo)) { *flags |= LDLM_FL_LVB_READY; - /* addref the lock only if not async requests and PW - * lock is matched whereas we asked for PR. - */ - if (!rqset && einfo->ei_mode != mode) - ldlm_lock_addref(lockh, LCK_PR); - if (intent) { - /* I would like to be able to ASSERT here that - * rss <= kms, but I can't, for reasons which - * are explained in lov_enqueue() - */ - } - - /* We already have a lock, and it's referenced. - * - * At this point, the cl_lock::cll_state is CLS_QUEUING, - * AGL upcall may change it to CLS_HELD directly. - */ - (*upcall)(cookie, ELDLM_OK); + /* We already have a lock, and it's referenced. */ + (*upcall)(cookie, &lockh, ELDLM_LOCK_MATCHED); - if (einfo->ei_mode != mode) - ldlm_lock_decref(lockh, LCK_PW); - else if (rqset) - /* For async requests, decref the lock. */ - ldlm_lock_decref(lockh, einfo->ei_mode); + ldlm_lock_decref(&lockh, mode); LDLM_LOCK_PUT(matched); return ELDLM_OK; + } else { + ldlm_lock_decref(&lockh, mode); + LDLM_LOCK_PUT(matched); } - - ldlm_lock_decref(lockh, mode); - LDLM_LOCK_PUT(matched); } - no_match: +no_match: + if (*flags & LDLM_FL_TEST_LOCK) + return -ENOLCK; if (intent) { LIST_HEAD(cancels); @@ -2344,21 +2314,31 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, *flags &= ~LDLM_FL_BLOCK_GRANTED; rc = ldlm_cli_enqueue(exp, &req, einfo, res_id, policy, flags, lvb, - sizeof(*lvb), LVB_T_OST, lockh, async); - if (rqset) { + sizeof(*lvb), LVB_T_OST, &lockh, async); + if (async) { if (!rc) { struct osc_enqueue_args *aa; - CLASSERT (sizeof(*aa) <= sizeof(req->rq_async_args)); + CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args)); aa = ptlrpc_req_async_args(req); - aa->oa_ei = einfo; aa->oa_exp = exp; - aa->oa_flags = flags; + aa->oa_mode = einfo->ei_mode; + aa->oa_type = einfo->ei_type; + lustre_handle_copy(&aa->oa_lockh, &lockh); aa->oa_upcall = upcall; aa->oa_cookie = cookie; - aa->oa_lvb = lvb; - aa->oa_lockh = lockh; aa->oa_agl = !!agl; + if (!agl) { + aa->oa_flags = flags; + aa->oa_lvb = lvb; + } else { + /* AGL is essentially to enqueue an DLM lock + * in advance, so we don't care about the + * result of AGL enqueue. + */ + aa->oa_lvb = NULL; + aa->oa_flags = NULL; + } req->rq_interpret_reply = (ptlrpc_interpterer_t)osc_enqueue_interpret; @@ -2372,7 +2352,8 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, return rc; } - rc = osc_enqueue_fini(req, lvb, upcall, cookie, flags, agl, rc); + rc = osc_enqueue_fini(req, upcall, cookie, &lockh, einfo->ei_mode, + flags, agl, rc); if (intent) ptlrpc_req_finished(req); @@ -3359,7 +3340,6 @@ static struct obd_ops osc_obd_ops = { }; extern struct lu_kmem_descr osc_caches[]; -extern spinlock_t osc_ast_guard; extern struct lock_class_key osc_ast_guard_class; static int __init osc_init(void) @@ -3386,9 +3366,6 @@ static int __init osc_init(void) if (rc) goto out_kmem; - spin_lock_init(&osc_ast_guard); - lockdep_set_class(&osc_ast_guard, &osc_ast_guard_class); - /* This is obviously too much memory, only prevent overflow here */ if (osc_reqpool_mem_max >= 1 << 12 || osc_reqpool_mem_max == 0) { rc = -EINVAL; -- cgit v0.10.2 From 71a96a0539a8ebd8273bf627222e260968b82a16 Mon Sep 17 00:00:00 2001 From: Bobi Jam Date: Wed, 30 Mar 2016 19:48:41 -0400 Subject: staging/lustre: update comments after cl_lock simplification Update comments to reflect current cl_lock situations. Signed-off-by: Bobi Jam Reviewed-on: http://review.whamcloud.com/13137 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6046 Reviewed-by: John L. Hammond Reviewed-by: Jinshan Xiong Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index 8f9512e..e613007 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -1117,111 +1117,29 @@ static inline struct page *cl_page_vmpage(struct cl_page *page) * * LIFE CYCLE * - * cl_lock is reference counted. When reference counter drops to 0, lock is - * placed in the cache, except when lock is in CLS_FREEING state. CLS_FREEING - * lock is destroyed when last reference is released. Referencing between - * top-lock and its sub-locks is described in the lov documentation module. - * - * STATE MACHINE - * - * Also, cl_lock is a state machine. This requires some clarification. One of - * the goals of client IO re-write was to make IO path non-blocking, or at - * least to make it easier to make it non-blocking in the future. Here - * `non-blocking' means that when a system call (read, write, truncate) - * reaches a situation where it has to wait for a communication with the - * server, it should --instead of waiting-- remember its current state and - * switch to some other work. E.g,. instead of waiting for a lock enqueue, - * client should proceed doing IO on the next stripe, etc. Obviously this is - * rather radical redesign, and it is not planned to be fully implemented at - * this time, instead we are putting some infrastructure in place, that would - * make it easier to do asynchronous non-blocking IO easier in the - * future. Specifically, where old locking code goes to sleep (waiting for - * enqueue, for example), new code returns cl_lock_transition::CLO_WAIT. When - * enqueue reply comes, its completion handler signals that lock state-machine - * is ready to transit to the next state. There is some generic code in - * cl_lock.c that sleeps, waiting for these signals. As a result, for users of - * this cl_lock.c code, it looks like locking is done in normal blocking - * fashion, and it the same time it is possible to switch to the non-blocking - * locking (simply by returning cl_lock_transition::CLO_WAIT from cl_lock.c - * functions). - * - * For a description of state machine states and transitions see enum - * cl_lock_state. - * - * There are two ways to restrict a set of states which lock might move to: - * - * - placing a "hold" on a lock guarantees that lock will not be moved - * into cl_lock_state::CLS_FREEING state until hold is released. Hold - * can be only acquired on a lock that is not in - * cl_lock_state::CLS_FREEING. All holds on a lock are counted in - * cl_lock::cll_holds. Hold protects lock from cancellation and - * destruction. Requests to cancel and destroy a lock on hold will be - * recorded, but only honored when last hold on a lock is released; - * - * - placing a "user" on a lock guarantees that lock will not leave - * cl_lock_state::CLS_NEW, cl_lock_state::CLS_QUEUING, - * cl_lock_state::CLS_ENQUEUED and cl_lock_state::CLS_HELD set of - * states, once it enters this set. That is, if a user is added onto a - * lock in a state not from this set, it doesn't immediately enforce - * lock to move to this set, but once lock enters this set it will - * remain there until all users are removed. Lock users are counted in - * cl_lock::cll_users. - * - * User is used to assure that lock is not canceled or destroyed while - * it is being enqueued, or actively used by some IO. - * - * Currently, a user always comes with a hold (cl_lock_invariant() - * checks that a number of holds is not less than a number of users). - * - * CONCURRENCY - * - * This is how lock state-machine operates. struct cl_lock contains a mutex - * cl_lock::cll_guard that protects struct fields. - * - * - mutex is taken, and cl_lock::cll_state is examined. - * - * - for every state there are possible target states where lock can move - * into. They are tried in order. Attempts to move into next state are - * done by _try() functions in cl_lock.c:cl_{enqueue,unlock,wait}_try(). - * - * - if the transition can be performed immediately, state is changed, - * and mutex is released. - * - * - if the transition requires blocking, _try() function returns - * cl_lock_transition::CLO_WAIT. Caller unlocks mutex and goes to - * sleep, waiting for possibility of lock state change. It is woken - * up when some event occurs, that makes lock state change possible - * (e.g., the reception of the reply from the server), and repeats - * the loop. - * - * Top-lock and sub-lock has separate mutexes and the latter has to be taken - * first to avoid dead-lock. - * - * To see an example of interaction of all these issues, take a look at the - * lov_cl.c:lov_lock_enqueue() function. It is called as a part of - * cl_enqueue_try(), and tries to advance top-lock to ENQUEUED state, by - * advancing state-machines of its sub-locks (lov_lock_enqueue_one()). Note - * also, that it uses trylock to grab sub-lock mutex to avoid dead-lock. It - * also has to handle CEF_ASYNC enqueue, when sub-locks enqueues have to be - * done in parallel, rather than one after another (this is used for glimpse - * locks, that cannot dead-lock). + * cl_lock is a cacheless data container for the requirements of locks to + * complete the IO. cl_lock is created before I/O starts and destroyed when the + * I/O is complete. + * + * cl_lock depends on LDLM lock to fulfill lock semantics. LDLM lock is attached + * to cl_lock at OSC layer. LDLM lock is still cacheable. * * INTERFACE AND USAGE * - * struct cl_lock_operations provide a number of call-backs that are invoked - * when events of interest occurs. Layers can intercept and handle glimpse, - * blocking, cancel ASTs and a reception of the reply from the server. + * Two major methods are supported for cl_lock: clo_enqueue and clo_cancel. A + * cl_lock is enqueued by cl_lock_request(), which will call clo_enqueue() + * methods for each layer to enqueue the lock. At the LOV layer, if a cl_lock + * consists of multiple sub cl_locks, each sub locks will be enqueued + * correspondingly. At OSC layer, the lock enqueue request will tend to reuse + * cached LDLM lock; otherwise a new LDLM lock will have to be requested from + * OST side. * - * One important difference with the old client locking model is that new - * client has a representation for the top-lock, whereas in the old code only - * sub-locks existed as real data structures and file-level locks are - * represented by "request sets" that are created and destroyed on each and - * every lock creation. + * cl_lock_cancel() must be called to release a cl_lock after use. clo_cancel() + * method will be called for each layer to release the resource held by this + * lock. At OSC layer, the reference count of LDLM lock, which is held at + * clo_enqueue time, is released. * - * Top-locks are cached, and can be found in the cache by the system calls. It - * is possible that top-lock is in cache, but some of its sub-locks were - * canceled and destroyed. In that case top-lock has to be enqueued again - * before it can be used. + * LDLM lock can only be canceled if there is no cl_lock using it. * * Overall process of the locking during IO operation is as following: * @@ -1234,7 +1152,7 @@ static inline struct page *cl_page_vmpage(struct cl_page *page) * * - when all locks are acquired, IO is performed; * - * - locks are released into cache. + * - locks are released after IO is complete. * * Striping introduces major additional complexity into locking. The * fundamental problem is that it is generally unsafe to actively use (hold) @@ -1256,16 +1174,6 @@ static inline struct page *cl_page_vmpage(struct cl_page *page) * buf is a part of memory mapped Lustre file, a lock or locks protecting buf * has to be held together with the usual lock on [offset, offset + count]. * - * As multi-stripe locks have to be allowed, it makes sense to cache them, so - * that, for example, a sequence of O_APPEND writes can proceed quickly - * without going down to the individual stripes to do lock matching. On the - * other hand, multi-stripe locks shouldn't be used by normal read/write - * calls. To achieve this, every layer can implement ->clo_fits_into() method, - * that is called by lock matching code (cl_lock_lookup()), and that can be - * used to selectively disable matching of certain locks for certain IOs. For - * example, lov layer implements lov_lock_fits_into() that allow multi-stripe - * locks to be matched only for truncates and O_APPEND writes. - * * Interaction with DLM * * In the expected setup, cl_lock is ultimately backed up by a collection of diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h index dfe41a8..ac9744e 100644 --- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h @@ -73,19 +73,6 @@ * - top-page keeps a reference to its sub-page, and destroys it when it * is destroyed. * - * - sub-lock keep a reference to its top-locks. Top-lock keeps a - * reference (and a hold, see cl_lock_hold()) on its sub-locks when it - * actively using them (that is, in cl_lock_state::CLS_QUEUING, - * cl_lock_state::CLS_ENQUEUED, cl_lock_state::CLS_HELD states). When - * moving into cl_lock_state::CLS_CACHED state, top-lock releases a - * hold. From this moment top-lock has only a 'weak' reference to its - * sub-locks. This reference is protected by top-lock - * cl_lock::cll_guard, and will be automatically cleared by the sub-lock - * when the latter is destroyed. When a sub-lock is canceled, a - * reference to it is removed from the top-lock array, and top-lock is - * moved into CLS_NEW state. It is guaranteed that all sub-locks exist - * while their top-lock is in CLS_HELD or CLS_CACHED states. - * * - IO's are not reference counted. * * To implement a connection between top and sub entities, lov layer is split -- cgit v0.10.2 From c11599b8d52d353f45b2dc05d58c48f9812ce6e9 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:42 -0400 Subject: staging/lustre/llite: clip page correctly for vvp_io_commit_sync The original code was wrong which clipped page incorrectly for partial pages started with zero. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/8531 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4201 Reviewed-by: Andreas Dilger Reviewed-by: wangdi Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index fb6f932..e44ef21 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -595,15 +595,17 @@ static int vvp_io_commit_sync(const struct lu_env *env, struct cl_io *io, if (plist->pl_nr == 0) return 0; - if (from != 0) { + if (from > 0 || to != PAGE_SIZE) { page = cl_page_list_first(plist); - cl_page_clip(env, page, from, - plist->pl_nr == 1 ? to : PAGE_SIZE); - } - if (to != PAGE_SIZE && plist->pl_nr > 1) { + if (plist->pl_nr == 1) { + cl_page_clip(env, page, from, to); + } else if (from > 0) { + cl_page_clip(env, page, from, PAGE_SIZE); + } else { page = cl_page_list_last(plist); cl_page_clip(env, page, 0, to); } + } cl_2queue_init(queue); cl_page_list_splice(plist, &queue->c2_qin); -- cgit v0.10.2 From d37dd10b71fd304289560901e81eddbe7defb351 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:48:43 -0400 Subject: staging/lustre/llite: deadlock for page write Writing thread already locked page #1, and then wait for the Writeback bit of page #2; Ptlrpc thread is composing a write RPC, so it sets Writeback on page #2 and tries to lock page #1 to make it ready. Deadlocked. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/9036 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4540 Reviewed-by: wangdi Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index 50d8289..f87238b 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -512,7 +512,7 @@ static int ll_write_begin(struct file *file, struct address_space *mapping, /* To avoid deadlock, try to lock page first. */ vmpage = grab_cache_page_nowait(mapping, index); - if (unlikely(!vmpage || PageDirty(vmpage))) { + if (unlikely(!vmpage || PageDirty(vmpage) || PageWriteback(vmpage))) { struct ccc_io *cio = ccc_env_io(env); struct cl_page_list *plist = &cio->u.write.cui_queue; @@ -522,7 +522,7 @@ static int ll_write_begin(struct file *file, struct address_space *mapping, * more grants. It's okay for the dirty page to be the first * one in commit page list, though. */ - if (vmpage && PageDirty(vmpage) && plist->pl_nr > 0) { + if (vmpage && plist->pl_nr > 0) { unlock_page(vmpage); page_cache_release(vmpage); vmpage = NULL; -- cgit v0.10.2 From 902a34ad7242bb50e467a24855b544148989daf4 Mon Sep 17 00:00:00 2001 From: Li Dongyang Date: Wed, 30 Mar 2016 19:48:44 -0400 Subject: staging/lustre/llite: make sure we do cl_page_clip on the last page When we are doing a partial IO on both first and last page, the logic currently only call cl_page_clip on the first page, which will end up with a incorrect i_size. Signed-off-by: Li Dongyang Reviewed-on: http://review.whamcloud.com/11630 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5552 Reviewed-by: Ian Costello Reviewed-by: Niu Yawei Reviewed-by: Li Xi Reviewed-by: Jinshan Xiong Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index e44ef21..1d2fc3b 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -599,12 +599,14 @@ static int vvp_io_commit_sync(const struct lu_env *env, struct cl_io *io, page = cl_page_list_first(plist); if (plist->pl_nr == 1) { cl_page_clip(env, page, from, to); - } else if (from > 0) { - cl_page_clip(env, page, from, PAGE_SIZE); } else { - page = cl_page_list_last(plist); - cl_page_clip(env, page, 0, to); - } + if (from > 0) + cl_page_clip(env, page, from, PAGE_SIZE); + if (to != PAGE_SIZE) { + page = cl_page_list_last(plist); + cl_page_clip(env, page, 0, to); + } + } } cl_2queue_init(queue); -- cgit v0.10.2 From 0d345656ea4221cec2dd34a0c7a7ba3f0a8e9047 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:45 -0400 Subject: staging/lustre/llite: merge lclient.h into llite/vvp_internal.h Move the definition of struct cl_client_cache to lustre/include/cl_object.h and move the rest of lustre/include/lclient.h in to lustre/llite/vvp_internal.h. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/12592 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Jinshan Xiong Reviewed-by: James Simmons Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index e613007..f2bb8f8 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -97,9 +97,12 @@ * super-class definitions. */ #include "lu_object.h" +#include #include "linux/lustre_compat25.h" #include #include +#include +#include struct inode; @@ -2317,6 +2320,39 @@ void cl_lock_descr_print(const struct lu_env *env, void *cookie, const struct cl_lock_descr *descr); /* @} helper */ +/** + * Data structure managing a client's cached pages. A count of + * "unstable" pages is maintained, and an LRU of clean pages is + * maintained. "unstable" pages are pages pinned by the ptlrpc + * layer for recovery purposes. + */ +struct cl_client_cache { + /** + * # of users (OSCs) + */ + atomic_t ccc_users; + /** + * # of threads are doing shrinking + */ + unsigned int ccc_lru_shrinkers; + /** + * # of LRU entries available + */ + atomic_t ccc_lru_left; + /** + * List of entities(OSCs) for this LRU cache + */ + struct list_head ccc_lru; + /** + * Max # of LRU entries + */ + unsigned long ccc_lru_max; + /** + * Lock to protect ccc_lru list + */ + spinlock_t ccc_lru_lock; +}; + /** @} cl_page */ /** \defgroup cl_lock cl_lock diff --git a/drivers/staging/lustre/lustre/include/lclient.h b/drivers/staging/lustre/lustre/include/lclient.h deleted file mode 100644 index 82af8ae..0000000 --- a/drivers/staging/lustre/lustre/include/lclient.h +++ /dev/null @@ -1,409 +0,0 @@ -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. - * - * GPL HEADER END - */ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * Definitions shared between vvp and liblustre, and other clients in the - * future. - * - * Author: Oleg Drokin - * Author: Nikita Danilov - */ - -#ifndef LCLIENT_H -#define LCLIENT_H - -blkcnt_t dirty_cnt(struct inode *inode); - -int cl_glimpse_size0(struct inode *inode, int agl); -int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, - struct inode *inode, struct cl_object *clob, int agl); - -static inline int cl_glimpse_size(struct inode *inode) -{ - return cl_glimpse_size0(inode, 0); -} - -static inline int cl_agl(struct inode *inode) -{ - return cl_glimpse_size0(inode, 1); -} - -/** - * Locking policy for setattr. - */ -enum ccc_setattr_lock_type { - /** Locking is done by server */ - SETATTR_NOLOCK, - /** Extent lock is enqueued */ - SETATTR_EXTENT_LOCK, - /** Existing local extent lock is used */ - SETATTR_MATCH_LOCK -}; - -/** - * IO state private to vvp or slp layers. - */ -struct ccc_io { - /** super class */ - struct cl_io_slice cui_cl; - struct cl_io_lock_link cui_link; - /** - * I/O vector information to or from which read/write is going. - */ - struct iov_iter *cui_iter; - /** - * Total size for the left IO. - */ - size_t cui_tot_count; - - union { - struct { - enum ccc_setattr_lock_type cui_local_lock; - } setattr; - struct { - struct cl_page_list cui_queue; - unsigned long cui_written; - int cui_from; - int cui_to; - } write; - } u; - /** - * Layout version when this IO is initialized - */ - __u32 cui_layout_gen; - /** - * File descriptor against which IO is done. - */ - struct ll_file_data *cui_fd; - struct kiocb *cui_iocb; -}; - -/** - * True, if \a io is a normal io, False for splice_{read,write}. - * must be implemented in arch specific code. - */ -int cl_is_normalio(const struct lu_env *env, const struct cl_io *io); - -extern struct lu_context_key ccc_key; -extern struct lu_context_key ccc_session_key; - -struct ccc_thread_info { - struct cl_lock cti_lock; - struct cl_lock_descr cti_descr; - struct cl_io cti_io; - struct cl_attr cti_attr; -}; - -static inline struct ccc_thread_info *ccc_env_info(const struct lu_env *env) -{ - struct ccc_thread_info *info; - - info = lu_context_key_get(&env->le_ctx, &ccc_key); - LASSERT(info); - return info; -} - -static inline struct cl_lock *ccc_env_lock(const struct lu_env *env) -{ - struct cl_lock *lock = &ccc_env_info(env)->cti_lock; - - memset(lock, 0, sizeof(*lock)); - return lock; -} - -static inline struct cl_attr *ccc_env_thread_attr(const struct lu_env *env) -{ - struct cl_attr *attr = &ccc_env_info(env)->cti_attr; - - memset(attr, 0, sizeof(*attr)); - return attr; -} - -static inline struct cl_io *ccc_env_thread_io(const struct lu_env *env) -{ - struct cl_io *io = &ccc_env_info(env)->cti_io; - - memset(io, 0, sizeof(*io)); - return io; -} - -struct ccc_session { - struct ccc_io cs_ios; -}; - -static inline struct ccc_session *ccc_env_session(const struct lu_env *env) -{ - struct ccc_session *ses; - - ses = lu_context_key_get(env->le_ses, &ccc_session_key); - LASSERT(ses); - return ses; -} - -static inline struct ccc_io *ccc_env_io(const struct lu_env *env) -{ - return &ccc_env_session(env)->cs_ios; -} - -/** - * ccc-private object state. - */ -struct ccc_object { - struct cl_object_header cob_header; - struct cl_object cob_cl; - struct inode *cob_inode; - - /** - * A list of dirty pages pending IO in the cache. Used by - * SOM. Protected by ll_inode_info::lli_lock. - * - * \see ccc_page::cpg_pending_linkage - */ - struct list_head cob_pending_list; - - /** - * Access this counter is protected by inode->i_sem. Now that - * the lifetime of transient pages must be covered by inode sem, - * we don't need to hold any lock.. - */ - int cob_transient_pages; - /** - * Number of outstanding mmaps on this file. - * - * \see ll_vm_open(), ll_vm_close(). - */ - atomic_t cob_mmap_cnt; - - /** - * various flags - * cob_discard_page_warned - * if pages belonging to this object are discarded when a client - * is evicted, some debug info will be printed, this flag will be set - * during processing the first discarded page, then avoid flooding - * debug message for lots of discarded pages. - * - * \see ll_dirty_page_discard_warn. - */ - unsigned int cob_discard_page_warned:1; -}; - -/** - * ccc-private page state. - */ -struct ccc_page { - struct cl_page_slice cpg_cl; - int cpg_defer_uptodate; - int cpg_ra_used; - int cpg_write_queued; - /** - * Non-empty iff this page is already counted in - * ccc_object::cob_pending_list. Protected by - * ccc_object::cob_pending_guard. This list is only used as a flag, - * that is, never iterated through, only checked for list_empty(), but - * having a list is useful for debugging. - */ - struct list_head cpg_pending_linkage; - /** VM page */ - struct page *cpg_page; -}; - -static inline struct ccc_page *cl2ccc_page(const struct cl_page_slice *slice) -{ - return container_of(slice, struct ccc_page, cpg_cl); -} - -static inline pgoff_t ccc_index(struct ccc_page *ccc) -{ - return ccc->cpg_cl.cpl_index; -} - -struct ccc_device { - struct cl_device cdv_cl; - struct super_block *cdv_sb; - struct cl_device *cdv_next; -}; - -struct ccc_lock { - struct cl_lock_slice clk_cl; -}; - -struct ccc_req { - struct cl_req_slice crq_cl; -}; - -void *ccc_key_init (const struct lu_context *ctx, - struct lu_context_key *key); -void ccc_key_fini (const struct lu_context *ctx, - struct lu_context_key *key, void *data); -void *ccc_session_key_init(const struct lu_context *ctx, - struct lu_context_key *key); -void ccc_session_key_fini(const struct lu_context *ctx, - struct lu_context_key *key, void *data); - -int ccc_device_init (const struct lu_env *env, - struct lu_device *d, - const char *name, struct lu_device *next); -struct lu_device *ccc_device_fini (const struct lu_env *env, - struct lu_device *d); -struct lu_device *ccc_device_alloc(const struct lu_env *env, - struct lu_device_type *t, - struct lustre_cfg *cfg, - const struct lu_device_operations *luops, - const struct cl_device_operations *clops); -struct lu_device *ccc_device_free (const struct lu_env *env, - struct lu_device *d); -struct lu_object *ccc_object_alloc(const struct lu_env *env, - const struct lu_object_header *hdr, - struct lu_device *dev, - const struct cl_object_operations *clops, - const struct lu_object_operations *luops); - -int ccc_req_init(const struct lu_env *env, struct cl_device *dev, - struct cl_req *req); -void ccc_umount(const struct lu_env *env, struct cl_device *dev); -int ccc_global_init(struct lu_device_type *device_type); -void ccc_global_fini(struct lu_device_type *device_type); -int ccc_object_init0(const struct lu_env *env, struct ccc_object *vob, - const struct cl_object_conf *conf); -int ccc_object_init(const struct lu_env *env, struct lu_object *obj, - const struct lu_object_conf *conf); -void ccc_object_free(const struct lu_env *env, struct lu_object *obj); -int ccc_lock_init(const struct lu_env *env, struct cl_object *obj, - struct cl_lock *lock, const struct cl_io *io, - const struct cl_lock_operations *lkops); -int ccc_object_glimpse(const struct lu_env *env, - const struct cl_object *obj, struct ost_lvb *lvb); -int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice); -int ccc_transient_page_prep(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *io); -void ccc_lock_delete(const struct lu_env *env, - const struct cl_lock_slice *slice); -void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice); -int ccc_lock_enqueue(const struct lu_env *env, - const struct cl_lock_slice *slice, - struct cl_io *io, struct cl_sync_io *anchor); -int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io, - __u32 enqflags, enum cl_lock_mode mode, - pgoff_t start, pgoff_t end); -int ccc_io_one_lock(const struct lu_env *env, struct cl_io *io, - __u32 enqflags, enum cl_lock_mode mode, - loff_t start, loff_t end); -void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios); -void ccc_io_advance(const struct lu_env *env, const struct cl_io_slice *ios, - size_t nob); -void ccc_io_update_iov(const struct lu_env *env, struct ccc_io *cio, - struct cl_io *io); -int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, - struct cl_io *io, loff_t start, size_t count, int *exceed); -void ccc_req_completion(const struct lu_env *env, - const struct cl_req_slice *slice, int ioret); -void ccc_req_attr_set(const struct lu_env *env, - const struct cl_req_slice *slice, - const struct cl_object *obj, - struct cl_req_attr *oa, u64 flags); - -struct lu_device *ccc2lu_dev (struct ccc_device *vdv); -struct lu_object *ccc2lu (struct ccc_object *vob); -struct ccc_device *lu2ccc_dev (const struct lu_device *d); -struct ccc_device *cl2ccc_dev (const struct cl_device *d); -struct ccc_object *lu2ccc (const struct lu_object *obj); -struct ccc_object *cl2ccc (const struct cl_object *obj); -struct ccc_lock *cl2ccc_lock (const struct cl_lock_slice *slice); -struct ccc_io *cl2ccc_io (const struct lu_env *env, - const struct cl_io_slice *slice); -struct ccc_req *cl2ccc_req (const struct cl_req_slice *slice); -struct page *cl2vm_page (const struct cl_page_slice *slice); -struct inode *ccc_object_inode(const struct cl_object *obj); -struct ccc_object *cl_inode2ccc (struct inode *inode); - -int cl_setattr_ost(struct inode *inode, const struct iattr *attr); - -int ccc_object_invariant(const struct cl_object *obj); -int cl_file_inode_init(struct inode *inode, struct lustre_md *md); -void cl_inode_fini(struct inode *inode); -int cl_local_size(struct inode *inode); - -__u16 ll_dirent_type_get(struct lu_dirent *ent); -__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32); -__u32 cl_fid_build_gen(const struct lu_fid *fid); - -# define CLOBINVRNT(env, clob, expr) \ - ((void)sizeof(env), (void)sizeof(clob), (void)sizeof(!!(expr))) - -int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp); -int cl_ocd_update(struct obd_device *host, - struct obd_device *watched, - enum obd_notify_event ev, void *owner, void *data); - -struct ccc_grouplock { - struct lu_env *cg_env; - struct cl_io *cg_io; - struct cl_lock *cg_lock; - unsigned long cg_gid; -}; - -int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, - struct ccc_grouplock *cg); -void cl_put_grouplock(struct ccc_grouplock *cg); - -/** - * New interfaces to get and put lov_stripe_md from lov layer. This violates - * layering because lov_stripe_md is supposed to be a private data in lov. - * - * NB: If you find you have to use these interfaces for your new code, please - * think about it again. These interfaces may be removed in the future for - * better layering. - */ -struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj); -void lov_lsm_put(struct cl_object *clobj, struct lov_stripe_md *lsm); -int lov_read_and_clear_async_rc(struct cl_object *clob); - -struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode); -void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm); - -/** - * Data structure managing a client's cached clean pages. An LRU of - * pages is maintained, along with other statistics. - */ -struct cl_client_cache { - atomic_t ccc_users; /* # of users (OSCs) of this data */ - struct list_head ccc_lru; /* LRU list of cached clean pages */ - spinlock_t ccc_lru_lock; /* lock for list */ - atomic_t ccc_lru_left; /* # of LRU entries available */ - unsigned long ccc_lru_max; /* Max # of LRU entries possible */ - unsigned int ccc_lru_shrinkers; /* # of threads reclaiming */ -}; - -#endif /*LCLIENT_H */ diff --git a/drivers/staging/lustre/lustre/llite/glimpse.c b/drivers/staging/lustre/lustre/llite/glimpse.c index 0759dfc..a634633 100644 --- a/drivers/staging/lustre/lustre/llite/glimpse.c +++ b/drivers/staging/lustre/lustre/llite/glimpse.c @@ -52,7 +52,6 @@ #include #include "../include/cl_object.h" -#include "../include/lclient.h" #include "../llite/llite_internal.h" static const struct cl_lock_descr whole_file = { diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index b339d1b..79cdf83 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -59,8 +59,6 @@ #include "../include/lustre_mdc.h" #include "../include/cl_object.h" -#include "../include/lclient.h" - #include "../llite/llite_internal.h" static const struct cl_req_operations ccc_req_ops; diff --git a/drivers/staging/lustre/lustre/llite/lcommon_misc.c b/drivers/staging/lustre/lustre/llite/lcommon_misc.c index 4c12e21..68e3db1 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_misc.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_misc.c @@ -41,8 +41,8 @@ #include "../include/obd_support.h" #include "../include/obd.h" #include "../include/cl_object.h" -#include "../include/lclient.h" +#include "vvp_internal.h" #include "../include/lustre_lite.h" /* Initialize the default and maximum LOV EA and cookie sizes. This allows diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index ffed507..5686b94 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -43,11 +43,11 @@ /* for struct cl_lock_descr and struct cl_io */ #include "../include/cl_object.h" -#include "../include/lclient.h" #include "../include/lustre_mdc.h" #include "../include/lustre_intent.h" #include #include +#include "vvp_internal.h" #ifndef FMODE_EXEC #define FMODE_EXEC 0 diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index aa06f40..d4fe611 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -41,8 +41,374 @@ #ifndef VVP_INTERNAL_H #define VVP_INTERNAL_H +#include "../include/lustre/lustre_idl.h" #include "../include/cl_object.h" -#include "llite_internal.h" + +enum obd_notify_event; +struct inode; +struct lov_stripe_md; +struct lustre_md; +struct obd_capa; +struct obd_device; +struct obd_export; +struct page; + +blkcnt_t dirty_cnt(struct inode *inode); + +int cl_glimpse_size0(struct inode *inode, int agl); +int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, + struct inode *inode, struct cl_object *clob, int agl); + +static inline int cl_glimpse_size(struct inode *inode) +{ + return cl_glimpse_size0(inode, 0); +} + +static inline int cl_agl(struct inode *inode) +{ + return cl_glimpse_size0(inode, 1); +} + +/** + * Locking policy for setattr. + */ +enum ccc_setattr_lock_type { + /** Locking is done by server */ + SETATTR_NOLOCK, + /** Extent lock is enqueued */ + SETATTR_EXTENT_LOCK, + /** Existing local extent lock is used */ + SETATTR_MATCH_LOCK +}; + +/** + * IO state private to vvp or slp layers. + */ +struct ccc_io { + /** super class */ + struct cl_io_slice cui_cl; + struct cl_io_lock_link cui_link; + /** + * I/O vector information to or from which read/write is going. + */ + struct iov_iter *cui_iter; + /** + * Total size for the left IO. + */ + size_t cui_tot_count; + + union { + struct { + enum ccc_setattr_lock_type cui_local_lock; + } setattr; + struct { + struct cl_page_list cui_queue; + unsigned long cui_written; + int cui_from; + int cui_to; + } write; + } u; + /** + * Layout version when this IO is initialized + */ + __u32 cui_layout_gen; + /** + * File descriptor against which IO is done. + */ + struct ll_file_data *cui_fd; + struct kiocb *cui_iocb; +}; + +/** + * True, if \a io is a normal io, False for other splice_{read,write}. + * must be implemented in arch specific code. + */ +int cl_is_normalio(const struct lu_env *env, const struct cl_io *io); + +extern struct lu_context_key ccc_key; +extern struct lu_context_key ccc_session_key; + +struct ccc_thread_info { + struct cl_lock cti_lock; + struct cl_lock_descr cti_descr; + struct cl_io cti_io; + struct cl_attr cti_attr; +}; + +static inline struct ccc_thread_info *ccc_env_info(const struct lu_env *env) +{ + struct ccc_thread_info *info; + + info = lu_context_key_get(&env->le_ctx, &ccc_key); + LASSERT(info); + + return info; +} + +static inline struct cl_lock *ccc_env_lock(const struct lu_env *env) +{ + struct cl_lock *lock = &ccc_env_info(env)->cti_lock; + + memset(lock, 0, sizeof(*lock)); + return lock; +} + +static inline struct cl_attr *ccc_env_thread_attr(const struct lu_env *env) +{ + struct cl_attr *attr = &ccc_env_info(env)->cti_attr; + + memset(attr, 0, sizeof(*attr)); + + return attr; +} + +static inline struct cl_io *ccc_env_thread_io(const struct lu_env *env) +{ + struct cl_io *io = &ccc_env_info(env)->cti_io; + + memset(io, 0, sizeof(*io)); + + return io; +} + +struct ccc_session { + struct ccc_io cs_ios; +}; + +static inline struct ccc_session *ccc_env_session(const struct lu_env *env) +{ + struct ccc_session *ses; + + ses = lu_context_key_get(env->le_ses, &ccc_session_key); + LASSERT(ses); + + return ses; +} + +static inline struct ccc_io *ccc_env_io(const struct lu_env *env) +{ + return &ccc_env_session(env)->cs_ios; +} + +/** + * ccc-private object state. + */ +struct ccc_object { + struct cl_object_header cob_header; + struct cl_object cob_cl; + struct inode *cob_inode; + + /** + * A list of dirty pages pending IO in the cache. Used by + * SOM. Protected by ll_inode_info::lli_lock. + * + * \see ccc_page::cpg_pending_linkage + */ + struct list_head cob_pending_list; + + /** + * Access this counter is protected by inode->i_sem. Now that + * the lifetime of transient pages must be covered by inode sem, + * we don't need to hold any lock.. + */ + int cob_transient_pages; + /** + * Number of outstanding mmaps on this file. + * + * \see ll_vm_open(), ll_vm_close(). + */ + atomic_t cob_mmap_cnt; + + /** + * various flags + * cob_discard_page_warned + * if pages belonging to this object are discarded when a client + * is evicted, some debug info will be printed, this flag will be set + * during processing the first discarded page, then avoid flooding + * debug message for lots of discarded pages. + * + * \see ll_dirty_page_discard_warn. + */ + unsigned int cob_discard_page_warned:1; +}; + +/** + * ccc-private page state. + */ +struct ccc_page { + struct cl_page_slice cpg_cl; + int cpg_defer_uptodate; + int cpg_ra_used; + int cpg_write_queued; + /** + * Non-empty iff this page is already counted in + * ccc_object::cob_pending_list. Protected by + * ccc_object::cob_pending_guard. This list is only used as a flag, + * that is, never iterated through, only checked for list_empty(), but + * having a list is useful for debugging. + */ + struct list_head cpg_pending_linkage; + /** VM page */ + struct page *cpg_page; +}; + +static inline struct ccc_page *cl2ccc_page(const struct cl_page_slice *slice) +{ + return container_of(slice, struct ccc_page, cpg_cl); +} + +static inline pgoff_t ccc_index(struct ccc_page *ccc) +{ + return ccc->cpg_cl.cpl_index; +} + +struct cl_page *ccc_vmpage_page_transient(struct page *vmpage); + +struct ccc_device { + struct cl_device cdv_cl; + struct super_block *cdv_sb; + struct cl_device *cdv_next; +}; + +struct ccc_lock { + struct cl_lock_slice clk_cl; +}; + +struct ccc_req { + struct cl_req_slice crq_cl; +}; + +void *ccc_key_init(const struct lu_context *ctx, + struct lu_context_key *key); +void ccc_key_fini(const struct lu_context *ctx, + struct lu_context_key *key, void *data); +void *ccc_session_key_init(const struct lu_context *ctx, + struct lu_context_key *key); +void ccc_session_key_fini(const struct lu_context *ctx, + struct lu_context_key *key, void *data); + +int ccc_device_init(const struct lu_env *env, + struct lu_device *d, + const char *name, struct lu_device *next); +struct lu_device *ccc_device_fini(const struct lu_env *env, + struct lu_device *d); +struct lu_device *ccc_device_alloc(const struct lu_env *env, + struct lu_device_type *t, + struct lustre_cfg *cfg, + const struct lu_device_operations *luops, + const struct cl_device_operations *clops); +struct lu_device *ccc_device_free(const struct lu_env *env, + struct lu_device *d); +struct lu_object *ccc_object_alloc(const struct lu_env *env, + const struct lu_object_header *hdr, + struct lu_device *dev, + const struct cl_object_operations *clops, + const struct lu_object_operations *luops); + +int ccc_req_init(const struct lu_env *env, struct cl_device *dev, + struct cl_req *req); +void ccc_umount(const struct lu_env *env, struct cl_device *dev); +int ccc_global_init(struct lu_device_type *device_type); +void ccc_global_fini(struct lu_device_type *device_type); +int ccc_object_init0(const struct lu_env *env, struct ccc_object *vob, + const struct cl_object_conf *conf); +int ccc_object_init(const struct lu_env *env, struct lu_object *obj, + const struct lu_object_conf *conf); +void ccc_object_free(const struct lu_env *env, struct lu_object *obj); +int ccc_lock_init(const struct lu_env *env, struct cl_object *obj, + struct cl_lock *lock, const struct cl_io *io, + const struct cl_lock_operations *lkops); +int ccc_object_glimpse(const struct lu_env *env, + const struct cl_object *obj, struct ost_lvb *lvb); +int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice); +int ccc_transient_page_prep(const struct lu_env *env, + const struct cl_page_slice *slice, + struct cl_io *io); +void ccc_lock_delete(const struct lu_env *env, + const struct cl_lock_slice *slice); +void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice); +int ccc_lock_enqueue(const struct lu_env *env, + const struct cl_lock_slice *slice, + struct cl_io *io, struct cl_sync_io *anchor); + +int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io, + __u32 enqflags, enum cl_lock_mode mode, + pgoff_t start, pgoff_t end); +int ccc_io_one_lock(const struct lu_env *env, struct cl_io *io, + __u32 enqflags, enum cl_lock_mode mode, + loff_t start, loff_t end); +void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios); +void ccc_io_advance(const struct lu_env *env, const struct cl_io_slice *ios, + size_t nob); +void ccc_io_update_iov(const struct lu_env *env, struct ccc_io *cio, + struct cl_io *io); +int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, + struct cl_io *io, loff_t start, size_t count, int *exceed); +void ccc_req_completion(const struct lu_env *env, + const struct cl_req_slice *slice, int ioret); +void ccc_req_attr_set(const struct lu_env *env, + const struct cl_req_slice *slice, + const struct cl_object *obj, + struct cl_req_attr *oa, u64 flags); + +struct lu_device *ccc2lu_dev(struct ccc_device *vdv); +struct lu_object *ccc2lu(struct ccc_object *vob); +struct ccc_device *lu2ccc_dev(const struct lu_device *d); +struct ccc_device *cl2ccc_dev(const struct cl_device *d); +struct ccc_object *lu2ccc(const struct lu_object *obj); +struct ccc_object *cl2ccc(const struct cl_object *obj); +struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice); +struct ccc_io *cl2ccc_io(const struct lu_env *env, + const struct cl_io_slice *slice); +struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice); +struct page *cl2vm_page(const struct cl_page_slice *slice); +struct inode *ccc_object_inode(const struct cl_object *obj); +struct ccc_object *cl_inode2ccc(struct inode *inode); + +int cl_setattr_ost(struct inode *inode, const struct iattr *attr); + +int ccc_object_invariant(const struct cl_object *obj); +int cl_file_inode_init(struct inode *inode, struct lustre_md *md); +void cl_inode_fini(struct inode *inode); +int cl_local_size(struct inode *inode); + +__u16 ll_dirent_type_get(struct lu_dirent *ent); +__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32); +__u32 cl_fid_build_gen(const struct lu_fid *fid); + +# define CLOBINVRNT(env, clob, expr) \ + ((void)sizeof(env), (void)sizeof(clob), (void)sizeof(!!(expr))) + +int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp); +int cl_ocd_update(struct obd_device *host, + struct obd_device *watched, + enum obd_notify_event ev, void *owner, void *data); + +struct ccc_grouplock { + struct lu_env *cg_env; + struct cl_io *cg_io; + struct cl_lock *cg_lock; + unsigned long cg_gid; +}; + +int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, + struct ccc_grouplock *cg); +void cl_put_grouplock(struct ccc_grouplock *cg); + +/** + * New interfaces to get and put lov_stripe_md from lov layer. This violates + * layering because lov_stripe_md is supposed to be a private data in lov. + * + * NB: If you find you have to use these interfaces for your new code, please + * think about it again. These interfaces may be removed in the future for + * better layering. + */ +struct lov_stripe_md *lov_lsm_get(struct cl_object *clobj); +void lov_lsm_put(struct cl_object *clobj, struct lov_stripe_md *lsm); +int lov_read_and_clear_async_rc(struct cl_object *clob); + +struct lov_stripe_md *ccc_inode_lsm_get(struct inode *inode); +void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm); int vvp_io_init(const struct lu_env *env, struct cl_object *obj, struct cl_io *io); diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 1d2fc3b..fcf0cfe 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -44,6 +44,7 @@ #include "../include/obd.h" #include "../include/lustre_lite.h" +#include "llite_internal.h" #include "vvp_internal.h" static struct vvp_io *cl2vvp_io(const struct lu_env *env, diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c index 34210db..45fac69 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_object.c +++ b/drivers/staging/lustre/lustre/llite/vvp_object.c @@ -45,6 +45,7 @@ #include "../include/obd.h" #include "../include/lustre_lite.h" +#include "llite_internal.h" #include "vvp_internal.h" /***************************************************************************** diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c index 3c6b723..66a4f9b 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_page.c +++ b/drivers/staging/lustre/lustre/llite/vvp_page.c @@ -44,6 +44,7 @@ #include "../include/obd.h" #include "../include/lustre_lite.h" +#include "llite_internal.h" #include "vvp_internal.h" /***************************************************************************** diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c index 5daa7fa..1a9e3e8 100644 --- a/drivers/staging/lustre/lustre/lov/lov_obd.c +++ b/drivers/staging/lustre/lustre/lov/lov_obd.c @@ -54,7 +54,6 @@ #include "../include/lprocfs_status.h" #include "../include/lustre_param.h" #include "../include/cl_object.h" -#include "../include/lclient.h" /* for cl_client_lru */ #include "../include/lustre/ll_fiemap.h" #include "../include/lustre_fid.h" diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index c7a69e4..d6d7661 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -51,7 +51,6 @@ #include "../include/obd.h" /* osc_build_res_name() */ #include "../include/cl_object.h" -#include "../include/lclient.h" #include "osc_internal.h" /** \defgroup osc osc -- cgit v0.10.2 From 3c95b8396758428405b445fe1faca936f1fe7dc5 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:46 -0400 Subject: staging/lustre/llite: rename ccc_device to vvp_device Rename struct ccc_device to struct vvp_device and merge the CCC device methods into the VVP device methods. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/13075 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Lai Siyao Reviewed-by: James Simmons Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index f2bb8f8..f2a242b 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -149,7 +149,7 @@ struct cl_device_operations { /** * Device in the client stack. * - * \see ccc_device, lov_device, lovsub_device, osc_device + * \see vvp_device, lov_device, lovsub_device, osc_device */ struct cl_device { /** Super-class. */ diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 79cdf83..b0d4a3d 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -159,91 +159,6 @@ struct lu_context_key ccc_session_key = { .lct_fini = ccc_session_key_fini }; -/* type constructor/destructor: ccc_type_{init,fini,start,stop}(). */ -/* LU_TYPE_INIT_FINI(ccc, &ccc_key, &ccc_session_key); */ - -int ccc_device_init(const struct lu_env *env, struct lu_device *d, - const char *name, struct lu_device *next) -{ - struct ccc_device *vdv; - int rc; - - vdv = lu2ccc_dev(d); - vdv->cdv_next = lu2cl_dev(next); - - LASSERT(d->ld_site && next->ld_type); - next->ld_site = d->ld_site; - rc = next->ld_type->ldt_ops->ldto_device_init( - env, next, next->ld_type->ldt_name, NULL); - if (rc == 0) { - lu_device_get(next); - lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init); - } - return rc; -} - -struct lu_device *ccc_device_fini(const struct lu_env *env, - struct lu_device *d) -{ - return cl2lu_dev(lu2ccc_dev(d)->cdv_next); -} - -struct lu_device *ccc_device_alloc(const struct lu_env *env, - struct lu_device_type *t, - struct lustre_cfg *cfg, - const struct lu_device_operations *luops, - const struct cl_device_operations *clops) -{ - struct ccc_device *vdv; - struct lu_device *lud; - struct cl_site *site; - int rc; - - vdv = kzalloc(sizeof(*vdv), GFP_NOFS); - if (!vdv) - return ERR_PTR(-ENOMEM); - - lud = &vdv->cdv_cl.cd_lu_dev; - cl_device_init(&vdv->cdv_cl, t); - ccc2lu_dev(vdv)->ld_ops = luops; - vdv->cdv_cl.cd_ops = clops; - - site = kzalloc(sizeof(*site), GFP_NOFS); - if (site) { - rc = cl_site_init(site, &vdv->cdv_cl); - if (rc == 0) { - rc = lu_site_init_finish(&site->cs_lu); - } else { - LASSERT(!lud->ld_site); - CERROR("Cannot init lu_site, rc %d.\n", rc); - kfree(site); - } - } else { - rc = -ENOMEM; - } - if (rc != 0) { - ccc_device_free(env, lud); - lud = ERR_PTR(rc); - } - return lud; -} - -struct lu_device *ccc_device_free(const struct lu_env *env, - struct lu_device *d) -{ - struct ccc_device *vdv = lu2ccc_dev(d); - struct cl_site *site = lu2cl_site(d->ld_site); - struct lu_device *next = cl2lu_dev(vdv->cdv_next); - - if (d->ld_site) { - cl_site_fini(site); - kfree(site); - } - cl_device_fini(lu2cl_dev(d)); - kfree(vdv); - return next; -} - int ccc_req_init(const struct lu_env *env, struct cl_device *dev, struct cl_req *req) { @@ -360,13 +275,13 @@ int ccc_object_init0(const struct lu_env *env, int ccc_object_init(const struct lu_env *env, struct lu_object *obj, const struct lu_object_conf *conf) { - struct ccc_device *dev = lu2ccc_dev(obj->lo_dev); + struct vvp_device *dev = lu2vvp_dev(obj->lo_dev); struct ccc_object *vob = lu2ccc(obj); struct lu_object *below; struct lu_device *under; int result; - under = &dev->cdv_next->cd_lu_dev; + under = &dev->vdv_next->cd_lu_dev; below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under); if (below) { const struct cl_object_conf *cconf; @@ -779,21 +694,6 @@ again: * */ -struct lu_device *ccc2lu_dev(struct ccc_device *vdv) -{ - return &vdv->cdv_cl.cd_lu_dev; -} - -struct ccc_device *lu2ccc_dev(const struct lu_device *d) -{ - return container_of0(d, struct ccc_device, cdv_cl.cd_lu_dev); -} - -struct ccc_device *cl2ccc_dev(const struct cl_device *d) -{ - return container_of0(d, struct ccc_device, cdv_cl); -} - struct lu_object *ccc2lu(struct ccc_object *vob) { return &vob->cob_cl.co_lu; diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 5686b94..1e9e41b 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -1321,7 +1321,7 @@ static inline void cl_stats_tally(struct cl_device *dev, enum cl_req_type crt, int opc = (crt == CRT_READ) ? LPROC_LL_OSC_READ : LPROC_LL_OSC_WRITE; - ll_stats_ops_tally(ll_s2sbi(cl2ccc_dev(dev)->cdv_sb), opc, rc); + ll_stats_ops_tally(ll_s2sbi(cl2vvp_dev(dev)->vdv_sb), opc, rc); } ssize_t ll_direct_rw_pages(const struct lu_env *env, struct cl_io *io, diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 29d24c9..e934ec8 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -136,11 +136,85 @@ static const struct cl_device_operations vvp_cl_ops = { .cdo_req_init = ccc_req_init }; +static struct lu_device *vvp_device_free(const struct lu_env *env, + struct lu_device *d) +{ + struct vvp_device *vdv = lu2vvp_dev(d); + struct cl_site *site = lu2cl_site(d->ld_site); + struct lu_device *next = cl2lu_dev(vdv->vdv_next); + + if (d->ld_site) { + cl_site_fini(site); + kfree(site); + } + cl_device_fini(lu2cl_dev(d)); + kfree(vdv); + return next; +} + static struct lu_device *vvp_device_alloc(const struct lu_env *env, struct lu_device_type *t, struct lustre_cfg *cfg) { - return ccc_device_alloc(env, t, cfg, &vvp_lu_ops, &vvp_cl_ops); + struct vvp_device *vdv; + struct lu_device *lud; + struct cl_site *site; + int rc; + + vdv = kzalloc(sizeof(*vdv), GFP_NOFS); + if (!vdv) + return ERR_PTR(-ENOMEM); + + lud = &vdv->vdv_cl.cd_lu_dev; + cl_device_init(&vdv->vdv_cl, t); + vvp2lu_dev(vdv)->ld_ops = &vvp_lu_ops; + vdv->vdv_cl.cd_ops = &vvp_cl_ops; + + site = kzalloc(sizeof(*site), GFP_NOFS); + if (site) { + rc = cl_site_init(site, &vdv->vdv_cl); + if (rc == 0) { + rc = lu_site_init_finish(&site->cs_lu); + } else { + LASSERT(!lud->ld_site); + CERROR("Cannot init lu_site, rc %d.\n", rc); + kfree(site); + } + } else { + rc = -ENOMEM; + } + if (rc != 0) { + vvp_device_free(env, lud); + lud = ERR_PTR(rc); + } + return lud; +} + +static int vvp_device_init(const struct lu_env *env, struct lu_device *d, + const char *name, struct lu_device *next) +{ + struct vvp_device *vdv; + int rc; + + vdv = lu2vvp_dev(d); + vdv->vdv_next = lu2cl_dev(next); + + LASSERT(d->ld_site && next->ld_type); + next->ld_site = d->ld_site; + rc = next->ld_type->ldt_ops->ldto_device_init(env, next, + next->ld_type->ldt_name, + NULL); + if (rc == 0) { + lu_device_get(next); + lu_ref_add(&next->ld_reference, "lu-stack", &lu_site_init); + } + return rc; +} + +static struct lu_device *vvp_device_fini(const struct lu_env *env, + struct lu_device *d) +{ + return cl2lu_dev(lu2vvp_dev(d)->vdv_next); } static const struct lu_device_type_operations vvp_device_type_ops = { @@ -151,9 +225,9 @@ static const struct lu_device_type_operations vvp_device_type_ops = { .ldto_stop = vvp_type_stop, .ldto_device_alloc = vvp_device_alloc, - .ldto_device_free = ccc_device_free, - .ldto_device_init = ccc_device_init, - .ldto_device_fini = ccc_device_fini + .ldto_device_free = vvp_device_free, + .ldto_device_init = vvp_device_init, + .ldto_device_fini = vvp_device_fini, }; struct lu_device_type vvp_device_type = { @@ -206,7 +280,7 @@ int cl_sb_init(struct super_block *sb) cl = cl_type_setup(env, NULL, &vvp_device_type, sbi->ll_dt_exp->exp_obd->obd_lu_dev); if (!IS_ERR(cl)) { - cl2ccc_dev(cl)->cdv_sb = sb; + cl2vvp_dev(cl)->vdv_sb = sb; sbi->ll_cl = cl; sbi->ll_site = cl2lu_dev(cl)->ld_site; } diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index d4fe611..34509f9 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -264,10 +264,10 @@ static inline pgoff_t ccc_index(struct ccc_page *ccc) struct cl_page *ccc_vmpage_page_transient(struct page *vmpage); -struct ccc_device { - struct cl_device cdv_cl; - struct super_block *cdv_sb; - struct cl_device *cdv_next; +struct vvp_device { + struct cl_device vdv_cl; + struct super_block *vdv_sb; + struct cl_device *vdv_next; }; struct ccc_lock { @@ -287,18 +287,6 @@ void *ccc_session_key_init(const struct lu_context *ctx, void ccc_session_key_fini(const struct lu_context *ctx, struct lu_context_key *key, void *data); -int ccc_device_init(const struct lu_env *env, - struct lu_device *d, - const char *name, struct lu_device *next); -struct lu_device *ccc_device_fini(const struct lu_env *env, - struct lu_device *d); -struct lu_device *ccc_device_alloc(const struct lu_env *env, - struct lu_device_type *t, - struct lustre_cfg *cfg, - const struct lu_device_operations *luops, - const struct cl_device_operations *clops); -struct lu_device *ccc_device_free(const struct lu_env *env, - struct lu_device *d); struct lu_object *ccc_object_alloc(const struct lu_env *env, const struct lu_object_header *hdr, struct lu_device *dev, @@ -351,10 +339,22 @@ void ccc_req_attr_set(const struct lu_env *env, const struct cl_object *obj, struct cl_req_attr *oa, u64 flags); -struct lu_device *ccc2lu_dev(struct ccc_device *vdv); +static inline struct lu_device *vvp2lu_dev(struct vvp_device *vdv) +{ + return &vdv->vdv_cl.cd_lu_dev; +} + +static inline struct vvp_device *lu2vvp_dev(const struct lu_device *d) +{ + return container_of0(d, struct vvp_device, vdv_cl.cd_lu_dev); +} + +static inline struct vvp_device *cl2vvp_dev(const struct cl_device *d) +{ + return container_of0(d, struct vvp_device, vdv_cl); +} + struct lu_object *ccc2lu(struct ccc_object *vob); -struct ccc_device *lu2ccc_dev(const struct lu_device *d); -struct ccc_device *cl2ccc_dev(const struct cl_device *d); struct ccc_object *lu2ccc(const struct lu_object *obj); struct ccc_object *cl2ccc(const struct cl_object *obj); struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice); -- cgit v0.10.2 From 8c7b0e1a67471b621b2200eced63ec2ea6f3b8fa Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:47 -0400 Subject: staging/lustre/llite: rename ccc_object to vvp_object Rename struct ccc_object to struct vvp_object and merge the CCC object methods into the VVP object methods. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/13077 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: James Simmons Reviewed-by: Dmitry Eremin Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index f2a242b..d3271ff 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -245,7 +245,7 @@ enum cl_attr_valid { * be discarded from the memory, all its sub-objects are torn-down and * destroyed too. * - * \see ccc_object, lov_object, lovsub_object, osc_object + * \see vvp_object, lov_object, lovsub_object, osc_object */ struct cl_object { /** super class */ @@ -385,7 +385,7 @@ struct cl_object_operations { * object. Layers are supposed to fill parts of \a lvb that will be * shipped to the glimpse originator as a glimpse result. * - * \see ccc_object_glimpse(), lovsub_object_glimpse(), + * \see vvp_object_glimpse(), lovsub_object_glimpse(), * \see osc_object_glimpse() */ int (*coo_glimpse)(const struct lu_env *env, diff --git a/drivers/staging/lustre/lustre/llite/glimpse.c b/drivers/staging/lustre/lustre/llite/glimpse.c index a634633..d76fa16 100644 --- a/drivers/staging/lustre/lustre/llite/glimpse.c +++ b/drivers/staging/lustre/lustre/llite/glimpse.c @@ -69,14 +69,14 @@ static const struct cl_lock_descr whole_file = { blkcnt_t dirty_cnt(struct inode *inode) { blkcnt_t cnt = 0; - struct ccc_object *vob = cl_inode2ccc(inode); + struct vvp_object *vob = cl_inode2vvp(inode); void *results[1]; if (inode->i_mapping) cnt += radix_tree_gang_lookup_tag(&inode->i_mapping->page_tree, results, 0, 1, PAGECACHE_TAG_DIRTY); - if (cnt == 0 && atomic_read(&vob->cob_mmap_cnt) > 0) + if (cnt == 0 && atomic_read(&vob->vob_mmap_cnt) > 0) cnt = 1; return (cnt > 0) ? 1 : 0; diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index b0d4a3d..9db0510 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -68,7 +68,6 @@ static const struct cl_req_operations ccc_req_ops; */ static struct kmem_cache *ccc_lock_kmem; -static struct kmem_cache *ccc_object_kmem; static struct kmem_cache *ccc_thread_kmem; static struct kmem_cache *ccc_session_kmem; static struct kmem_cache *ccc_req_kmem; @@ -80,11 +79,6 @@ static struct lu_kmem_descr ccc_caches[] = { .ckd_size = sizeof(struct ccc_lock) }, { - .ckd_cache = &ccc_object_kmem, - .ckd_name = "ccc_object_kmem", - .ckd_size = sizeof(struct ccc_object) - }, - { .ckd_cache = &ccc_thread_kmem, .ckd_name = "ccc_thread_kmem", .ckd_size = sizeof(struct ccc_thread_info), @@ -227,84 +221,6 @@ void ccc_global_fini(struct lu_device_type *device_type) lu_kmem_fini(ccc_caches); } -/***************************************************************************** - * - * Object operations. - * - */ - -struct lu_object *ccc_object_alloc(const struct lu_env *env, - const struct lu_object_header *unused, - struct lu_device *dev, - const struct cl_object_operations *clops, - const struct lu_object_operations *luops) -{ - struct ccc_object *vob; - struct lu_object *obj; - - vob = kmem_cache_zalloc(ccc_object_kmem, GFP_NOFS); - if (vob) { - struct cl_object_header *hdr; - - obj = ccc2lu(vob); - hdr = &vob->cob_header; - cl_object_header_init(hdr); - hdr->coh_page_bufsize = cfs_size_round(sizeof(struct cl_page)); - - lu_object_init(obj, &hdr->coh_lu, dev); - lu_object_add_top(&hdr->coh_lu, obj); - - vob->cob_cl.co_ops = clops; - obj->lo_ops = luops; - } else { - obj = NULL; - } - return obj; -} - -int ccc_object_init0(const struct lu_env *env, - struct ccc_object *vob, - const struct cl_object_conf *conf) -{ - vob->cob_inode = conf->coc_inode; - vob->cob_transient_pages = 0; - cl_object_page_init(&vob->cob_cl, sizeof(struct ccc_page)); - return 0; -} - -int ccc_object_init(const struct lu_env *env, struct lu_object *obj, - const struct lu_object_conf *conf) -{ - struct vvp_device *dev = lu2vvp_dev(obj->lo_dev); - struct ccc_object *vob = lu2ccc(obj); - struct lu_object *below; - struct lu_device *under; - int result; - - under = &dev->vdv_next->cd_lu_dev; - below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under); - if (below) { - const struct cl_object_conf *cconf; - - cconf = lu2cl_conf(conf); - INIT_LIST_HEAD(&vob->cob_pending_list); - lu_object_add(obj, below); - result = ccc_object_init0(env, vob, cconf); - } else { - result = -ENOMEM; - } - return result; -} - -void ccc_object_free(const struct lu_env *env, struct lu_object *obj) -{ - struct ccc_object *vob = lu2ccc(obj); - - lu_object_fini(obj); - lu_object_header_fini(obj->lo_header); - kmem_cache_free(ccc_object_kmem, vob); -} - int ccc_lock_init(const struct lu_env *env, struct cl_object *obj, struct cl_lock *lock, const struct cl_io *unused, @@ -313,7 +229,7 @@ int ccc_lock_init(const struct lu_env *env, struct ccc_lock *clk; int result; - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + CLOBINVRNT(env, obj, vvp_object_invariant(obj)); clk = kmem_cache_zalloc(ccc_lock_kmem, GFP_NOFS); if (clk) { @@ -325,35 +241,17 @@ int ccc_lock_init(const struct lu_env *env, return result; } -int ccc_object_glimpse(const struct lu_env *env, - const struct cl_object *obj, struct ost_lvb *lvb) -{ - struct inode *inode = ccc_object_inode(obj); - - lvb->lvb_mtime = LTIME_S(inode->i_mtime); - lvb->lvb_atime = LTIME_S(inode->i_atime); - lvb->lvb_ctime = LTIME_S(inode->i_ctime); - /* - * LU-417: Add dirty pages block count lest i_blocks reports 0, some - * "cp" or "tar" on remote node may think it's a completely sparse file - * and skip it. - */ - if (lvb->lvb_size > 0 && lvb->lvb_blocks == 0) - lvb->lvb_blocks = dirty_cnt(inode); - return 0; -} - -static void ccc_object_size_lock(struct cl_object *obj) +static void vvp_object_size_lock(struct cl_object *obj) { - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); ll_inode_size_lock(inode); cl_object_attr_lock(obj); } -static void ccc_object_size_unlock(struct cl_object *obj) +static void vvp_object_size_unlock(struct cl_object *obj) { - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); cl_object_attr_unlock(obj); ll_inode_size_unlock(inode); @@ -399,7 +297,7 @@ int ccc_lock_enqueue(const struct lu_env *env, const struct cl_lock_slice *slice, struct cl_io *unused, struct cl_sync_io *anchor) { - CLOBINVRNT(env, slice->cls_obj, ccc_object_invariant(slice->cls_obj)); + CLOBINVRNT(env, slice->cls_obj, vvp_object_invariant(slice->cls_obj)); return 0; } @@ -417,7 +315,7 @@ int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io, struct cl_lock_descr *descr = &cio->cui_link.cill_descr; struct cl_object *obj = io->ci_obj; - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + CLOBINVRNT(env, obj, vvp_object_invariant(obj)); CDEBUG(D_VFSTRACE, "lock: %d [%lu, %lu]\n", mode, start, end); @@ -462,7 +360,7 @@ int ccc_io_one_lock(const struct lu_env *env, struct cl_io *io, void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios) { CLOBINVRNT(env, ios->cis_io->ci_obj, - ccc_object_invariant(ios->cis_io->ci_obj)); + vvp_object_invariant(ios->cis_io->ci_obj)); } void ccc_io_advance(const struct lu_env *env, @@ -473,7 +371,7 @@ void ccc_io_advance(const struct lu_env *env, struct cl_io *io = ios->cis_io; struct cl_object *obj = ios->cis_io->ci_obj; - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + CLOBINVRNT(env, obj, vvp_object_invariant(obj)); if (!cl_is_normalio(env, io)) return; @@ -496,7 +394,7 @@ int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, struct cl_io *io, loff_t start, size_t count, int *exceed) { struct cl_attr *attr = ccc_env_thread_attr(env); - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); loff_t pos = start + count - 1; loff_t kms; int result; @@ -520,7 +418,7 @@ int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, * ll_inode_size_lock(). This guarantees that short reads are handled * correctly in the face of concurrent writes and truncates. */ - ccc_object_size_lock(obj); + vvp_object_size_lock(obj); result = cl_object_attr_get(env, obj, attr); if (result == 0) { kms = attr->cat_kms; @@ -530,7 +428,7 @@ int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, * return a short read (B) or some zeroes at the end * of the buffer (C) */ - ccc_object_size_unlock(obj); + vvp_object_size_unlock(obj); result = cl_glimpse_lock(env, io, inode, obj, 0); if (result == 0 && exceed) { /* If objective page index exceed end-of-file @@ -567,7 +465,9 @@ int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, (__u64)i_size_read(inode)); } } - ccc_object_size_unlock(obj); + + vvp_object_size_unlock(obj); + return result; } @@ -618,7 +518,7 @@ void ccc_req_attr_set(const struct lu_env *env, u32 valid_flags; oa = attr->cra_oa; - inode = ccc_object_inode(obj); + inode = vvp_object_inode(obj); valid_flags = OBD_MD_FLTYPE; if (slice->crs_req->crq_type == CRT_WRITE) { @@ -694,21 +594,6 @@ again: * */ -struct lu_object *ccc2lu(struct ccc_object *vob) -{ - return &vob->cob_cl.co_lu; -} - -struct ccc_object *lu2ccc(const struct lu_object *obj) -{ - return container_of0(obj, struct ccc_object, cob_cl.co_lu); -} - -struct ccc_object *cl2ccc(const struct cl_object *obj) -{ - return container_of0(obj, struct ccc_object, cob_cl); -} - struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice) { return container_of(slice, struct ccc_lock, clk_cl); @@ -734,25 +619,6 @@ struct page *cl2vm_page(const struct cl_page_slice *slice) return cl2ccc_page(slice)->cpg_page; } -/***************************************************************************** - * - * Accessors. - * - */ -int ccc_object_invariant(const struct cl_object *obj) -{ - struct inode *inode = ccc_object_inode(obj); - struct ll_inode_info *lli = ll_i2info(inode); - - return (S_ISREG(inode->i_mode) || inode->i_mode == 0) && - lli->lli_clob == obj; -} - -struct inode *ccc_object_inode(const struct cl_object *obj) -{ - return cl2ccc(obj)->cob_inode; -} - /** * Initialize or update CLIO structures for regular files when new * meta-data arrives from the server. diff --git a/drivers/staging/lustre/lustre/llite/llite_close.c b/drivers/staging/lustre/lustre/llite/llite_close.c index a55ac4d..6e99d34 100644 --- a/drivers/staging/lustre/lustre/llite/llite_close.c +++ b/drivers/staging/lustre/lustre/llite/llite_close.c @@ -46,21 +46,21 @@ #include "llite_internal.h" /** records that a write is in flight */ -void vvp_write_pending(struct ccc_object *club, struct ccc_page *page) +void vvp_write_pending(struct vvp_object *club, struct ccc_page *page) { - struct ll_inode_info *lli = ll_i2info(club->cob_inode); + struct ll_inode_info *lli = ll_i2info(club->vob_inode); spin_lock(&lli->lli_lock); lli->lli_flags |= LLIF_SOM_DIRTY; if (page && list_empty(&page->cpg_pending_linkage)) - list_add(&page->cpg_pending_linkage, &club->cob_pending_list); + list_add(&page->cpg_pending_linkage, &club->vob_pending_list); spin_unlock(&lli->lli_lock); } /** records that a write has completed */ -void vvp_write_complete(struct ccc_object *club, struct ccc_page *page) +void vvp_write_complete(struct vvp_object *club, struct ccc_page *page) { - struct ll_inode_info *lli = ll_i2info(club->cob_inode); + struct ll_inode_info *lli = ll_i2info(club->vob_inode); int rc = 0; spin_lock(&lli->lli_lock); @@ -70,7 +70,7 @@ void vvp_write_complete(struct ccc_object *club, struct ccc_page *page) } spin_unlock(&lli->lli_lock); if (rc) - ll_queue_done_writing(club->cob_inode, 0); + ll_queue_done_writing(club->vob_inode, 0); } /** Queues DONE_WRITING if @@ -80,13 +80,13 @@ void vvp_write_complete(struct ccc_object *club, struct ccc_page *page) void ll_queue_done_writing(struct inode *inode, unsigned long flags) { struct ll_inode_info *lli = ll_i2info(inode); - struct ccc_object *club = cl2ccc(ll_i2info(inode)->lli_clob); + struct vvp_object *club = cl2vvp(ll_i2info(inode)->lli_clob); spin_lock(&lli->lli_lock); lli->lli_flags |= flags; if ((lli->lli_flags & LLIF_DONE_WRITING) && - list_empty(&club->cob_pending_list)) { + list_empty(&club->vob_pending_list)) { struct ll_close_queue *lcq = ll_i2sbi(inode)->ll_lcq; if (lli->lli_flags & LLIF_MDS_SIZE_LOCK) @@ -140,10 +140,10 @@ void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data, struct obd_client_handle **och, unsigned long flags) { struct ll_inode_info *lli = ll_i2info(inode); - struct ccc_object *club = cl2ccc(ll_i2info(inode)->lli_clob); + struct vvp_object *club = cl2vvp(ll_i2info(inode)->lli_clob); spin_lock(&lli->lli_lock); - if (!(list_empty(&club->cob_pending_list))) { + if (!(list_empty(&club->vob_pending_list))) { if (!(lli->lli_flags & LLIF_EPOCH_PENDING)) { LASSERT(*och); LASSERT(!lli->lli_pending_och); @@ -198,7 +198,7 @@ void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data, } } - LASSERT(list_empty(&club->cob_pending_list)); + LASSERT(list_empty(&club->vob_pending_list)); lli->lli_flags &= ~LLIF_SOM_DIRTY; spin_unlock(&lli->lli_lock); ll_done_writing_attr(inode, op_data); diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 1e9e41b..1c39d15 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -828,10 +828,8 @@ struct ll_close_queue { atomic_t lcq_stop; }; -struct ccc_object *cl_inode2ccc(struct inode *inode); - -void vvp_write_pending (struct ccc_object *club, struct ccc_page *page); -void vvp_write_complete(struct ccc_object *club, struct ccc_page *page); +void vvp_write_pending(struct vvp_object *club, struct ccc_page *page); +void vvp_write_complete(struct vvp_object *club, struct ccc_page *page); /* specific architecture can implement only part of this list */ enum vvp_io_subtype { diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 0f01cfc..95c55c3 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -2270,7 +2270,7 @@ void ll_dirty_page_discard_warn(struct page *page, int ioret) { char *buf, *path = NULL; struct dentry *dentry = NULL; - struct ccc_object *obj = cl_inode2ccc(page->mapping->host); + struct vvp_object *obj = cl_inode2vvp(page->mapping->host); /* this can be called inside spin lock so use GFP_ATOMIC. */ buf = (char *)__get_free_page(GFP_ATOMIC); @@ -2284,7 +2284,7 @@ void ll_dirty_page_discard_warn(struct page *page, int ioret) "%s: dirty page discard: %s/fid: " DFID "/%s may get corrupted (rc %d)\n", ll_get_fsname(page->mapping->host->i_sb, NULL, 0), s2lsi(page->mapping->host->i_sb)->lsi_lmd->lmd_dev, - PFID(&obj->cob_header.coh_lu.loh_fid), + PFID(&obj->vob_header.coh_lu.loh_fid), (path && !IS_ERR(path)) ? path : "", ioret); if (dentry) diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c index baccf93..1263da8 100644 --- a/drivers/staging/lustre/lustre/llite/llite_mmap.c +++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c @@ -200,7 +200,7 @@ static int ll_page_mkwrite0(struct vm_area_struct *vma, struct page *vmpage, * Otherwise, we could add dirty pages into osc cache * while truncate is on-going. */ - inode = ccc_object_inode(io->ci_obj); + inode = vvp_object_inode(io->ci_obj); lli = ll_i2info(inode); down_read(&lli->lli_trunc_sem); @@ -422,16 +422,16 @@ static int ll_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) /** * To avoid cancel the locks covering mmapped region for lock cache pressure, - * we track the mapped vma count in ccc_object::cob_mmap_cnt. + * we track the mapped vma count in vvp_object::vob_mmap_cnt. */ static void ll_vm_open(struct vm_area_struct *vma) { struct inode *inode = file_inode(vma->vm_file); - struct ccc_object *vob = cl_inode2ccc(inode); + struct vvp_object *vob = cl_inode2vvp(inode); LASSERT(vma->vm_file); - LASSERT(atomic_read(&vob->cob_mmap_cnt) >= 0); - atomic_inc(&vob->cob_mmap_cnt); + LASSERT(atomic_read(&vob->vob_mmap_cnt) >= 0); + atomic_inc(&vob->vob_mmap_cnt); } /** @@ -440,11 +440,11 @@ static void ll_vm_open(struct vm_area_struct *vma) static void ll_vm_close(struct vm_area_struct *vma) { struct inode *inode = file_inode(vma->vm_file); - struct ccc_object *vob = cl_inode2ccc(inode); + struct vvp_object *vob = cl_inode2vvp(inode); LASSERT(vma->vm_file); - atomic_dec(&vob->cob_mmap_cnt); - LASSERT(atomic_read(&vob->cob_mmap_cnt) >= 0); + atomic_dec(&vob->vob_mmap_cnt); + LASSERT(atomic_read(&vob->vob_mmap_cnt) >= 0); } /* XXX put nice comment here. talk about __free_pte -> dirty pages and diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index ad15058..5ae0993 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -343,7 +343,7 @@ static int ll_read_ahead_page(const struct lu_env *env, struct cl_io *io, pgoff_t index, pgoff_t *max_index) { struct cl_object *clob = io->ci_obj; - struct inode *inode = ccc_object_inode(clob); + struct inode *inode = vvp_object_inode(clob); struct page *vmpage; struct cl_page *page; enum ra_stat which = _NR_RA_STAT; /* keep gcc happy */ @@ -558,7 +558,7 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, __u64 kms; clob = io->ci_obj; - inode = ccc_object_inode(clob); + inode = vvp_object_inode(clob); memset(ria, 0, sizeof(*ria)); diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index f87238b..ec114bc 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -350,7 +350,7 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter, struct cl_io *io; struct file *file = iocb->ki_filp; struct inode *inode = file->f_mapping->host; - struct ccc_object *obj = cl_inode2ccc(inode); + struct vvp_object *obj = cl_inode2vvp(inode); ssize_t count = iov_iter_count(iter); ssize_t tot_bytes = 0, result = 0; struct ll_inode_info *lli = ll_i2info(inode); @@ -386,7 +386,7 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter, if (iov_iter_rw(iter) == READ) inode_lock(inode); - LASSERT(obj->cob_transient_pages == 0); + LASSERT(obj->vob_transient_pages == 0); while (iov_iter_count(iter)) { struct page **pages; size_t offs; @@ -434,7 +434,7 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter, file_offset += result; } out: - LASSERT(obj->cob_transient_pages == 0); + LASSERT(obj->vob_transient_pages == 0); if (iov_iter_rw(iter) == READ) inode_unlock(inode); diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index e934ec8..45c549c 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -57,10 +57,16 @@ * "llite_" (var. "ll_") prefix. */ +struct kmem_cache *vvp_object_kmem; static struct kmem_cache *vvp_thread_kmem; static struct kmem_cache *vvp_session_kmem; static struct lu_kmem_descr vvp_caches[] = { { + .ckd_cache = &vvp_object_kmem, + .ckd_name = "vvp_object_kmem", + .ckd_size = sizeof(struct vvp_object), + }, + { .ckd_cache = &vvp_thread_kmem, .ckd_name = "vvp_thread_kmem", .ckd_size = sizeof(struct vvp_thread_info), @@ -431,7 +437,7 @@ static loff_t vvp_pgcache_find(const struct lu_env *env, return ~0ULL; clob = vvp_pgcache_obj(env, dev, &id); if (clob) { - struct inode *inode = ccc_object_inode(clob); + struct inode *inode = vvp_object_inode(clob); struct page *vmpage; int nr; @@ -512,7 +518,7 @@ static int vvp_pgcache_show(struct seq_file *f, void *v) sbi = f->private; clob = vvp_pgcache_obj(env, &sbi->ll_cl->cd_lu_dev, &id); if (clob) { - struct inode *inode = ccc_object_inode(clob); + struct inode *inode = vvp_object_inode(clob); struct cl_page *page = NULL; struct page *vmpage; diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 34509f9..76e7b4c 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -128,6 +128,8 @@ int cl_is_normalio(const struct lu_env *env, const struct cl_io *io); extern struct lu_context_key ccc_key; extern struct lu_context_key ccc_session_key; +extern struct kmem_cache *vvp_object_kmem; + struct ccc_thread_info { struct cl_lock cti_lock; struct cl_lock_descr cti_descr; @@ -193,10 +195,10 @@ static inline struct ccc_io *ccc_env_io(const struct lu_env *env) /** * ccc-private object state. */ -struct ccc_object { - struct cl_object_header cob_header; - struct cl_object cob_cl; - struct inode *cob_inode; +struct vvp_object { + struct cl_object_header vob_header; + struct cl_object vob_cl; + struct inode *vob_inode; /** * A list of dirty pages pending IO in the cache. Used by @@ -204,24 +206,24 @@ struct ccc_object { * * \see ccc_page::cpg_pending_linkage */ - struct list_head cob_pending_list; + struct list_head vob_pending_list; /** * Access this counter is protected by inode->i_sem. Now that * the lifetime of transient pages must be covered by inode sem, * we don't need to hold any lock.. */ - int cob_transient_pages; + int vob_transient_pages; /** * Number of outstanding mmaps on this file. * * \see ll_vm_open(), ll_vm_close(). */ - atomic_t cob_mmap_cnt; + atomic_t vob_mmap_cnt; /** * various flags - * cob_discard_page_warned + * vob_discard_page_warned * if pages belonging to this object are discarded when a client * is evicted, some debug info will be printed, this flag will be set * during processing the first discarded page, then avoid flooding @@ -229,7 +231,7 @@ struct ccc_object { * * \see ll_dirty_page_discard_warn. */ - unsigned int cob_discard_page_warned:1; + unsigned int vob_discard_page_warned:1; }; /** @@ -242,8 +244,7 @@ struct ccc_page { int cpg_write_queued; /** * Non-empty iff this page is already counted in - * ccc_object::cob_pending_list. Protected by - * ccc_object::cob_pending_guard. This list is only used as a flag, + * vvp_object::vob_pending_list. This list is only used as a flag, * that is, never iterated through, only checked for list_empty(), but * having a list is useful for debugging. */ @@ -287,27 +288,14 @@ void *ccc_session_key_init(const struct lu_context *ctx, void ccc_session_key_fini(const struct lu_context *ctx, struct lu_context_key *key, void *data); -struct lu_object *ccc_object_alloc(const struct lu_env *env, - const struct lu_object_header *hdr, - struct lu_device *dev, - const struct cl_object_operations *clops, - const struct lu_object_operations *luops); - int ccc_req_init(const struct lu_env *env, struct cl_device *dev, struct cl_req *req); void ccc_umount(const struct lu_env *env, struct cl_device *dev); int ccc_global_init(struct lu_device_type *device_type); void ccc_global_fini(struct lu_device_type *device_type); -int ccc_object_init0(const struct lu_env *env, struct ccc_object *vob, - const struct cl_object_conf *conf); -int ccc_object_init(const struct lu_env *env, struct lu_object *obj, - const struct lu_object_conf *conf); -void ccc_object_free(const struct lu_env *env, struct lu_object *obj); int ccc_lock_init(const struct lu_env *env, struct cl_object *obj, struct cl_lock *lock, const struct cl_io *io, const struct cl_lock_operations *lkops); -int ccc_object_glimpse(const struct lu_env *env, - const struct cl_object *obj, struct ost_lvb *lvb); int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice); int ccc_transient_page_prep(const struct lu_env *env, const struct cl_page_slice *slice, @@ -354,20 +342,32 @@ static inline struct vvp_device *cl2vvp_dev(const struct cl_device *d) return container_of0(d, struct vvp_device, vdv_cl); } -struct lu_object *ccc2lu(struct ccc_object *vob); -struct ccc_object *lu2ccc(const struct lu_object *obj); -struct ccc_object *cl2ccc(const struct cl_object *obj); +static inline struct vvp_object *cl2vvp(const struct cl_object *obj) +{ + return container_of0(obj, struct vvp_object, vob_cl); +} + +static inline struct vvp_object *lu2vvp(const struct lu_object *obj) +{ + return container_of0(obj, struct vvp_object, vob_cl.co_lu); +} + +static inline struct inode *vvp_object_inode(const struct cl_object *obj) +{ + return cl2vvp(obj)->vob_inode; +} + +int vvp_object_invariant(const struct cl_object *obj); +struct vvp_object *cl_inode2vvp(struct inode *inode); + struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice); struct ccc_io *cl2ccc_io(const struct lu_env *env, const struct cl_io_slice *slice); struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice); struct page *cl2vm_page(const struct cl_page_slice *slice); -struct inode *ccc_object_inode(const struct cl_object *obj); -struct ccc_object *cl_inode2ccc(struct inode *inode); int cl_setattr_ost(struct inode *inode, const struct iattr *attr); -int ccc_object_invariant(const struct cl_object *obj); int cl_file_inode_init(struct inode *inode, struct lustre_md *md); void cl_inode_fini(struct inode *inode); int cl_local_size(struct inode *inode); @@ -419,7 +419,6 @@ int vvp_page_init(const struct lu_env *env, struct cl_object *obj, struct lu_object *vvp_object_alloc(const struct lu_env *env, const struct lu_object_header *hdr, struct lu_device *dev); -struct ccc_object *cl_inode2ccc(struct inode *inode); extern const struct file_operations vvp_dump_pgcache_file_ops; diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index fcf0cfe..1773cb2 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -127,7 +127,7 @@ static int vvp_io_fault_iter_init(const struct lu_env *env, const struct cl_io_slice *ios) { struct vvp_io *vio = cl2vvp_io(env, ios); - struct inode *inode = ccc_object_inode(ios->cis_obj); + struct inode *inode = vvp_object_inode(ios->cis_obj); LASSERT(inode == file_inode(cl2ccc_io(env, ios)->cui_fd->fd_file)); @@ -141,7 +141,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) struct cl_object *obj = io->ci_obj; struct ccc_io *cio = cl2ccc_io(env, ios); - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + CLOBINVRNT(env, obj, vvp_object_invariant(obj)); CDEBUG(D_VFSTRACE, DFID " ignore/verify layout %d/%d, layout version %d restore needed %d\n", @@ -155,7 +155,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) /* file was detected release, we need to restore it * before finishing the io */ - rc = ll_layout_restore(ccc_object_inode(obj)); + rc = ll_layout_restore(vvp_object_inode(obj)); /* if restore registration failed, no restart, * we will return -ENODATA */ @@ -181,7 +181,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) __u32 gen = 0; /* check layout version */ - ll_layout_refresh(ccc_object_inode(obj), &gen); + ll_layout_refresh(vvp_object_inode(obj), &gen); io->ci_need_restart = cio->cui_layout_gen != gen; if (io->ci_need_restart) { CDEBUG(D_VFSTRACE, @@ -190,7 +190,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) cio->cui_layout_gen, gen); /* today successful restore is the only possible case */ /* restore was done, clear restoring state */ - ll_i2info(ccc_object_inode(obj))->lli_flags &= + ll_i2info(vvp_object_inode(obj))->lli_flags &= ~LLIF_FILE_RESTORING; } } @@ -202,7 +202,7 @@ static void vvp_io_fault_fini(const struct lu_env *env, struct cl_io *io = ios->cis_io; struct cl_page *page = io->u.ci_fault.ft_page; - CLOBINVRNT(env, io->ci_obj, ccc_object_invariant(io->ci_obj)); + CLOBINVRNT(env, io->ci_obj, vvp_object_invariant(io->ci_obj)); if (page) { lu_ref_del(&page->cp_reference, "fault", io); @@ -459,7 +459,7 @@ static int vvp_io_setattr_start(const struct lu_env *env, const struct cl_io_slice *ios) { struct cl_io *io = ios->cis_io; - struct inode *inode = ccc_object_inode(io->ci_obj); + struct inode *inode = vvp_object_inode(io->ci_obj); int result = 0; inode_lock(inode); @@ -475,7 +475,7 @@ static void vvp_io_setattr_end(const struct lu_env *env, const struct cl_io_slice *ios) { struct cl_io *io = ios->cis_io; - struct inode *inode = ccc_object_inode(io->ci_obj); + struct inode *inode = vvp_object_inode(io->ci_obj); if (cl_io_is_trunc(io)) /* Truncate in memory pages - they must be clean pages @@ -499,7 +499,7 @@ static int vvp_io_read_start(const struct lu_env *env, struct ccc_io *cio = cl2ccc_io(env, ios); struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); struct ll_ra_read *bead = &vio->cui_bead; struct file *file = cio->cui_fd->fd_file; @@ -509,7 +509,7 @@ static int vvp_io_read_start(const struct lu_env *env, long tot = cio->cui_tot_count; int exceed = 0; - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + CLOBINVRNT(env, obj, vvp_object_invariant(obj)); CDEBUG(D_VFSTRACE, "read: -> [%lli, %lli)\n", pos, pos + cnt); @@ -653,7 +653,7 @@ static void write_commit_callback(const struct lu_env *env, struct cl_io *io, set_page_dirty(vmpage); cp = cl2ccc_page(cl_object_page_slice(clob, page)); - vvp_write_pending(cl2ccc(clob), cp); + vvp_write_pending(cl2vvp(clob), cp); cl_page_disown(env, io, page); @@ -690,7 +690,7 @@ static bool page_list_sanity_check(struct cl_object *obj, int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) { struct cl_object *obj = io->ci_obj; - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); struct ccc_io *cio = ccc_env_io(env); struct cl_page_list *queue = &cio->u.write.cui_queue; struct cl_page *page; @@ -773,7 +773,7 @@ static int vvp_io_write_start(const struct lu_env *env, struct ccc_io *cio = cl2ccc_io(env, ios); struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); ssize_t result = 0; loff_t pos = io->u.ci_wr.wr.crw_pos; size_t cnt = io->u.ci_wr.wr.crw_count; @@ -874,7 +874,7 @@ static void mkwrite_commit_callback(const struct lu_env *env, struct cl_io *io, set_page_dirty(page->cp_vmpage); cp = cl2ccc_page(cl_object_page_slice(clob, page)); - vvp_write_pending(cl2ccc(clob), cp); + vvp_write_pending(cl2vvp(clob), cp); } static int vvp_io_fault_start(const struct lu_env *env, @@ -883,7 +883,7 @@ static int vvp_io_fault_start(const struct lu_env *env, struct vvp_io *vio = cl2vvp_io(env, ios); struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); struct cl_fault_io *fio = &io->u.ci_fault; struct vvp_fault_io *cfio = &vio->u.fault; loff_t offset; @@ -1060,7 +1060,7 @@ static int vvp_io_read_page(const struct lu_env *env, struct cl_io *io = ios->cis_io; struct ccc_page *cp = cl2ccc_page(slice); struct cl_page *page = slice->cpl_page; - struct inode *inode = ccc_object_inode(slice->cpl_obj); + struct inode *inode = vvp_object_inode(slice->cpl_obj); struct ll_sb_info *sbi = ll_i2sbi(inode); struct ll_file_data *fd = cl2ccc_io(env, ios)->cui_fd; struct ll_readahead_state *ras = &fd->fd_ras; @@ -1135,10 +1135,10 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, { struct vvp_io *vio = vvp_env_io(env); struct ccc_io *cio = ccc_env_io(env); - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); int result; - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + CLOBINVRNT(env, obj, vvp_object_invariant(obj)); CDEBUG(D_VFSTRACE, DFID " ignore/verify layout %d/%d, layout version %d restore needed %d\n", diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c index 45fac69..9f5e6a6 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_object.c +++ b/drivers/staging/lustre/lustre/llite/vvp_object.c @@ -54,16 +54,25 @@ * */ +int vvp_object_invariant(const struct cl_object *obj) +{ + struct inode *inode = vvp_object_inode(obj); + struct ll_inode_info *lli = ll_i2info(inode); + + return (S_ISREG(inode->i_mode) || inode->i_mode == 0) && + lli->lli_clob == obj; +} + static int vvp_object_print(const struct lu_env *env, void *cookie, lu_printer_t p, const struct lu_object *o) { - struct ccc_object *obj = lu2ccc(o); - struct inode *inode = obj->cob_inode; + struct vvp_object *obj = lu2vvp(o); + struct inode *inode = obj->vob_inode; struct ll_inode_info *lli; (*p)(env, cookie, "(%s %d %d) inode: %p ", - list_empty(&obj->cob_pending_list) ? "-" : "+", - obj->cob_transient_pages, atomic_read(&obj->cob_mmap_cnt), + list_empty(&obj->vob_pending_list) ? "-" : "+", + obj->vob_transient_pages, atomic_read(&obj->vob_mmap_cnt), inode); if (inode) { lli = ll_i2info(inode); @@ -78,7 +87,7 @@ static int vvp_object_print(const struct lu_env *env, void *cookie, static int vvp_attr_get(const struct lu_env *env, struct cl_object *obj, struct cl_attr *attr) { - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); /* * lov overwrites most of these fields in @@ -100,7 +109,7 @@ static int vvp_attr_get(const struct lu_env *env, struct cl_object *obj, static int vvp_attr_set(const struct lu_env *env, struct cl_object *obj, const struct cl_attr *attr, unsigned valid) { - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); if (valid & CAT_UID) inode->i_uid = make_kuid(&init_user_ns, attr->cat_uid); @@ -168,7 +177,7 @@ static int vvp_conf_set(const struct lu_env *env, struct cl_object *obj, static int vvp_prune(const struct lu_env *env, struct cl_object *obj) { - struct inode *inode = ccc_object_inode(obj); + struct inode *inode = vvp_object_inode(obj); int rc; rc = cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, CL_FSYNC_LOCAL, 1); @@ -182,6 +191,24 @@ static int vvp_prune(const struct lu_env *env, struct cl_object *obj) return 0; } +static int vvp_object_glimpse(const struct lu_env *env, + const struct cl_object *obj, struct ost_lvb *lvb) +{ + struct inode *inode = vvp_object_inode(obj); + + lvb->lvb_mtime = LTIME_S(inode->i_mtime); + lvb->lvb_atime = LTIME_S(inode->i_atime); + lvb->lvb_ctime = LTIME_S(inode->i_ctime); + /* + * LU-417: Add dirty pages block count lest i_blocks reports 0, some + * "cp" or "tar" on remote node may think it's a completely sparse file + * and skip it. + */ + if (lvb->lvb_size > 0 && lvb->lvb_blocks == 0) + lvb->lvb_blocks = dirty_cnt(inode); + return 0; +} + static const struct cl_object_operations vvp_ops = { .coo_page_init = vvp_page_init, .coo_lock_init = vvp_lock_init, @@ -190,16 +217,60 @@ static const struct cl_object_operations vvp_ops = { .coo_attr_set = vvp_attr_set, .coo_conf_set = vvp_conf_set, .coo_prune = vvp_prune, - .coo_glimpse = ccc_object_glimpse + .coo_glimpse = vvp_object_glimpse }; +static int vvp_object_init0(const struct lu_env *env, + struct vvp_object *vob, + const struct cl_object_conf *conf) +{ + vob->vob_inode = conf->coc_inode; + vob->vob_transient_pages = 0; + cl_object_page_init(&vob->vob_cl, sizeof(struct ccc_page)); + return 0; +} + +static int vvp_object_init(const struct lu_env *env, struct lu_object *obj, + const struct lu_object_conf *conf) +{ + struct vvp_device *dev = lu2vvp_dev(obj->lo_dev); + struct vvp_object *vob = lu2vvp(obj); + struct lu_object *below; + struct lu_device *under; + int result; + + under = &dev->vdv_next->cd_lu_dev; + below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under); + if (below) { + const struct cl_object_conf *cconf; + + cconf = lu2cl_conf(conf); + INIT_LIST_HEAD(&vob->vob_pending_list); + lu_object_add(obj, below); + result = vvp_object_init0(env, vob, cconf); + } else { + result = -ENOMEM; + } + + return result; +} + +static void vvp_object_free(const struct lu_env *env, struct lu_object *obj) +{ + struct vvp_object *vob = lu2vvp(obj); + + lu_object_fini(obj); + lu_object_header_fini(obj->lo_header); + kmem_cache_free(vvp_object_kmem, vob); +} + static const struct lu_object_operations vvp_lu_obj_ops = { - .loo_object_init = ccc_object_init, - .loo_object_free = ccc_object_free, - .loo_object_print = vvp_object_print + .loo_object_init = vvp_object_init, + .loo_object_free = vvp_object_free, + .loo_object_print = vvp_object_print, }; -struct ccc_object *cl_inode2ccc(struct inode *inode) +struct vvp_object *cl_inode2vvp(struct inode *inode) { struct ll_inode_info *lli = ll_i2info(inode); struct cl_object *obj = lli->lli_clob; @@ -207,12 +278,32 @@ struct ccc_object *cl_inode2ccc(struct inode *inode) lu = lu_object_locate(obj->co_lu.lo_header, &vvp_device_type); LASSERT(lu); - return lu2ccc(lu); + return lu2vvp(lu); } struct lu_object *vvp_object_alloc(const struct lu_env *env, - const struct lu_object_header *hdr, + const struct lu_object_header *unused, struct lu_device *dev) { - return ccc_object_alloc(env, hdr, dev, &vvp_ops, &vvp_lu_obj_ops); + struct vvp_object *vob; + struct lu_object *obj; + + vob = kmem_cache_zalloc(vvp_object_kmem, GFP_NOFS); + if (vob) { + struct cl_object_header *hdr; + + obj = &vob->vob_cl.co_lu; + hdr = &vob->vob_header; + cl_object_header_init(hdr); + hdr->coh_page_bufsize = cfs_size_round(sizeof(struct cl_page)); + + lu_object_init(obj, &hdr->coh_lu, dev); + lu_object_add_top(&hdr->coh_lu, obj); + + vob->vob_cl.co_ops = &vvp_ops; + obj->lo_ops = &vvp_lu_obj_ops; + } else { + obj = NULL; + } + return obj; } diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c index 66a4f9b..419a535 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_page.c +++ b/drivers/staging/lustre/lustre/llite/vvp_page.c @@ -159,9 +159,9 @@ static void vvp_page_delete(const struct lu_env *env, LASSERT(PageLocked(vmpage)); LASSERT((struct cl_page *)vmpage->private == page); - LASSERT(inode == ccc_object_inode(obj)); + LASSERT(inode == vvp_object_inode(obj)); - vvp_write_complete(cl2ccc(obj), cl2ccc_page(slice)); + vvp_write_complete(cl2vvp(obj), cl2ccc_page(slice)); /* Drop the reference count held in vvp_page_init */ refc = atomic_dec_return(&page->cp_ref); @@ -220,7 +220,7 @@ static int vvp_page_prep_write(const struct lu_env *env, if (!pg->cp_sync_io) set_page_writeback(vmpage); - vvp_write_pending(cl2ccc(slice->cpl_obj), cl2ccc_page(slice)); + vvp_write_pending(cl2vvp(slice->cpl_obj), cl2ccc_page(slice)); return 0; } @@ -233,11 +233,11 @@ static int vvp_page_prep_write(const struct lu_env *env, */ static void vvp_vmpage_error(struct inode *inode, struct page *vmpage, int ioret) { - struct ccc_object *obj = cl_inode2ccc(inode); + struct vvp_object *obj = cl_inode2vvp(inode); if (ioret == 0) { ClearPageError(vmpage); - obj->cob_discard_page_warned = 0; + obj->vob_discard_page_warned = 0; } else { SetPageError(vmpage); if (ioret == -ENOSPC) @@ -246,8 +246,8 @@ static void vvp_vmpage_error(struct inode *inode, struct page *vmpage, int ioret set_bit(AS_EIO, &inode->i_mapping->flags); if ((ioret == -ESHUTDOWN || ioret == -EINTR) && - obj->cob_discard_page_warned == 0) { - obj->cob_discard_page_warned = 1; + obj->vob_discard_page_warned == 0) { + obj->vob_discard_page_warned = 1; ll_dirty_page_discard_warn(vmpage, ioret); } } @@ -260,7 +260,7 @@ static void vvp_page_completion_read(const struct lu_env *env, struct ccc_page *cp = cl2ccc_page(slice); struct page *vmpage = cp->cpg_page; struct cl_page *page = slice->cpl_page; - struct inode *inode = ccc_object_inode(page->cp_obj); + struct inode *inode = vvp_object_inode(page->cp_obj); LASSERT(PageLocked(vmpage)); CL_PAGE_HEADER(D_PAGE, env, page, "completing READ with %d\n", ioret); @@ -299,7 +299,7 @@ static void vvp_page_completion_write(const struct lu_env *env, */ cp->cpg_write_queued = 0; - vvp_write_complete(cl2ccc(slice->cpl_obj), cp); + vvp_write_complete(cl2vvp(slice->cpl_obj), cp); if (pg->cp_sync_io) { LASSERT(PageLocked(vmpage)); @@ -310,7 +310,7 @@ static void vvp_page_completion_write(const struct lu_env *env, * Only mark the page error only when it's an async write * because applications won't wait for IO to finish. */ - vvp_vmpage_error(ccc_object_inode(pg->cp_obj), vmpage, ioret); + vvp_vmpage_error(vvp_object_inode(pg->cp_obj), vmpage, ioret); end_page_writeback(vmpage); } @@ -342,7 +342,7 @@ static int vvp_page_make_ready(const struct lu_env *env, LASSERT(pg->cp_state == CPS_CACHED); /* This actually clears the dirty bit in the radix tree. */ set_page_writeback(vmpage); - vvp_write_pending(cl2ccc(slice->cpl_obj), cl2ccc_page(slice)); + vvp_write_pending(cl2vvp(slice->cpl_obj), cl2ccc_page(slice)); CL_PAGE_HEADER(D_PAGE, env, pg, "readied\n"); } else if (pg->cp_state == CPS_PAGEOUT) { /* is it possible for osc_flush_async_page() to already @@ -421,7 +421,7 @@ static const struct cl_page_operations vvp_page_ops = { static void vvp_transient_page_verify(const struct cl_page *page) { - struct inode *inode = ccc_object_inode(page->cp_obj); + struct inode *inode = vvp_object_inode(page->cp_obj); LASSERT(!inode_trylock(inode)); } @@ -472,7 +472,7 @@ static void vvp_transient_page_discard(const struct lu_env *env, static int vvp_transient_page_is_vmlocked(const struct lu_env *env, const struct cl_page_slice *slice) { - struct inode *inode = ccc_object_inode(slice->cpl_obj); + struct inode *inode = vvp_object_inode(slice->cpl_obj); int locked; locked = !inode_trylock(inode); @@ -494,11 +494,11 @@ static void vvp_transient_page_fini(const struct lu_env *env, { struct ccc_page *cp = cl2ccc_page(slice); struct cl_page *clp = slice->cpl_page; - struct ccc_object *clobj = cl2ccc(clp->cp_obj); + struct vvp_object *clobj = cl2vvp(clp->cp_obj); vvp_page_fini_common(cp); - LASSERT(!inode_trylock(clobj->cob_inode)); - clobj->cob_transient_pages--; + LASSERT(!inode_trylock(clobj->vob_inode)); + clobj->vob_transient_pages--; } static const struct cl_page_operations vvp_transient_page_ops = { @@ -529,7 +529,7 @@ int vvp_page_init(const struct lu_env *env, struct cl_object *obj, struct ccc_page *cpg = cl_object_page_slice(obj, page); struct page *vmpage = page->cp_vmpage; - CLOBINVRNT(env, obj, ccc_object_invariant(obj)); + CLOBINVRNT(env, obj, vvp_object_invariant(obj)); cpg->cpg_page = vmpage; page_cache_get(vmpage); @@ -543,12 +543,12 @@ int vvp_page_init(const struct lu_env *env, struct cl_object *obj, cl_page_slice_add(page, &cpg->cpg_cl, obj, index, &vvp_page_ops); } else { - struct ccc_object *clobj = cl2ccc(obj); + struct vvp_object *clobj = cl2vvp(obj); - LASSERT(!inode_trylock(clobj->cob_inode)); + LASSERT(!inode_trylock(clobj->vob_inode)); cl_page_slice_add(page, &cpg->cpg_cl, obj, index, &vvp_transient_page_ops); - clobj->cob_transient_pages++; + clobj->vob_transient_pages++; } return 0; } diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index d6d7661..aba6469 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -135,7 +135,7 @@ struct osc_object { */ struct list_head oo_inflight[CRT_NR]; /** - * Lock, protecting ccc_object::cob_inflight, because a seat-belt is + * Lock, protecting osc_page::ops_inflight, because a seat-belt is * locked during take-off and landing. */ spinlock_t oo_seatbelt; -- cgit v0.10.2 From 3a52f803382541569f30f225d6f868a36b4c3014 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:48 -0400 Subject: staging/lustre/llite: rename ccc_page to vvp_page Rename struct ccc_page to struct vvp_page and remove obsolete CCC page methods. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/13086 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: James Simmons Reviewed-by: Jinshan Xiong Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index d3271ff..3488349 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -769,7 +769,7 @@ struct cl_page { /** * Per-layer part of cl_page. * - * \see ccc_page, lov_page, osc_page + * \see vvp_page, lov_page, osc_page */ struct cl_page_slice { struct cl_page *cpl_page; diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 9db0510..0762032 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -259,29 +259,6 @@ static void vvp_object_size_unlock(struct cl_object *obj) /***************************************************************************** * - * Page operations. - * - */ - -int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice) -{ - /* - * Cached read? - */ - LBUG(); - return 0; -} - -int ccc_transient_page_prep(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *unused) -{ - /* transient page should always be sent. */ - return 0; -} - -/***************************************************************************** - * * Lock operations. * */ @@ -614,11 +591,6 @@ struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice) return container_of0(slice, struct ccc_req, crq_cl); } -struct page *cl2vm_page(const struct cl_page_slice *slice) -{ - return cl2ccc_page(slice)->cpg_page; -} - /** * Initialize or update CLIO structures for regular files when new * meta-data arrives from the server. diff --git a/drivers/staging/lustre/lustre/llite/llite_close.c b/drivers/staging/lustre/lustre/llite/llite_close.c index 6e99d34..8d23980 100644 --- a/drivers/staging/lustre/lustre/llite/llite_close.c +++ b/drivers/staging/lustre/lustre/llite/llite_close.c @@ -46,26 +46,26 @@ #include "llite_internal.h" /** records that a write is in flight */ -void vvp_write_pending(struct vvp_object *club, struct ccc_page *page) +void vvp_write_pending(struct vvp_object *club, struct vvp_page *page) { struct ll_inode_info *lli = ll_i2info(club->vob_inode); spin_lock(&lli->lli_lock); lli->lli_flags |= LLIF_SOM_DIRTY; - if (page && list_empty(&page->cpg_pending_linkage)) - list_add(&page->cpg_pending_linkage, &club->vob_pending_list); + if (page && list_empty(&page->vpg_pending_linkage)) + list_add(&page->vpg_pending_linkage, &club->vob_pending_list); spin_unlock(&lli->lli_lock); } /** records that a write has completed */ -void vvp_write_complete(struct vvp_object *club, struct ccc_page *page) +void vvp_write_complete(struct vvp_object *club, struct vvp_page *page) { struct ll_inode_info *lli = ll_i2info(club->vob_inode); int rc = 0; spin_lock(&lli->lli_lock); - if (page && !list_empty(&page->cpg_pending_linkage)) { - list_del_init(&page->cpg_pending_linkage); + if (page && !list_empty(&page->vpg_pending_linkage)) { + list_del_init(&page->vpg_pending_linkage); rc = 1; } spin_unlock(&lli->lli_lock); diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 1c39d15..78b3edd 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -828,8 +828,8 @@ struct ll_close_queue { atomic_t lcq_stop; }; -void vvp_write_pending(struct vvp_object *club, struct ccc_page *page); -void vvp_write_complete(struct vvp_object *club, struct ccc_page *page); +void vvp_write_pending(struct vvp_object *club, struct vvp_page *page); +void vvp_write_complete(struct vvp_object *club, struct vvp_page *page); /* specific architecture can implement only part of this list */ enum vvp_io_subtype { diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index 5ae0993..2c4d4c4 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -298,21 +298,21 @@ static int cl_read_ahead_page(const struct lu_env *env, struct cl_io *io, struct cl_object *clob, pgoff_t *max_index) { struct page *vmpage = page->cp_vmpage; - struct ccc_page *cp; + struct vvp_page *vpg; int rc; rc = 0; cl_page_assume(env, io, page); lu_ref_add(&page->cp_reference, "ra", current); - cp = cl2ccc_page(cl_object_page_slice(clob, page)); - if (!cp->cpg_defer_uptodate && !PageUptodate(vmpage)) { + vpg = cl2vvp_page(cl_object_page_slice(clob, page)); + if (!vpg->vpg_defer_uptodate && !PageUptodate(vmpage)) { CDEBUG(D_READA, "page index %lu, max_index: %lu\n", - ccc_index(cp), *max_index); - if (*max_index == 0 || ccc_index(cp) > *max_index) + vvp_index(vpg), *max_index); + if (*max_index == 0 || vvp_index(vpg) > *max_index) rc = cl_page_is_under_lock(env, io, page, max_index); if (rc == 0) { - cp->cpg_defer_uptodate = 1; - cp->cpg_ra_used = 0; + vpg->vpg_defer_uptodate = 1; + vpg->vpg_ra_used = 0; cl_page_list_add(queue, page); rc = 1; } else { diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index ec114bc..bb85629 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -457,8 +457,8 @@ static int ll_prepare_partial_page(const struct lu_env *env, struct cl_io *io, { struct cl_attr *attr = ccc_env_thread_attr(env); struct cl_object *obj = io->ci_obj; - struct ccc_page *cp = cl_object_page_slice(obj, pg); - loff_t offset = cl_offset(obj, ccc_index(cp)); + struct vvp_page *vpg = cl_object_page_slice(obj, pg); + loff_t offset = cl_offset(obj, vvp_index(vpg)); int result; cl_object_attr_lock(obj); @@ -471,12 +471,12 @@ static int ll_prepare_partial_page(const struct lu_env *env, struct cl_io *io, * purposes here we can treat it like i_size. */ if (attr->cat_kms <= offset) { - char *kaddr = kmap_atomic(cp->cpg_page); + char *kaddr = kmap_atomic(vpg->vpg_page); memset(kaddr, 0, cl_page_size(obj)); kunmap_atomic(kaddr); - } else if (cp->cpg_defer_uptodate) { - cp->cpg_ra_used = 1; + } else if (vpg->vpg_defer_uptodate) { + vpg->vpg_ra_used = 1; } else { result = ll_page_sync_io(env, io, pg, CRT_READ); } diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 45c549c..3891b0d 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -474,18 +474,18 @@ static loff_t vvp_pgcache_find(const struct lu_env *env, static void vvp_pgcache_page_show(const struct lu_env *env, struct seq_file *seq, struct cl_page *page) { - struct ccc_page *cpg; + struct vvp_page *vpg; struct page *vmpage; int has_flags; - cpg = cl2ccc_page(cl_page_at(page, &vvp_device_type)); - vmpage = cpg->cpg_page; + vpg = cl2vvp_page(cl_page_at(page, &vvp_device_type)); + vmpage = vpg->vpg_page; seq_printf(seq, " %5i | %p %p %s %s %s %s | %p %lu/%u(%p) %lu %u [", 0 /* gen */, - cpg, page, + vpg, page, "none", - cpg->cpg_write_queued ? "wq" : "- ", - cpg->cpg_defer_uptodate ? "du" : "- ", + vpg->vpg_write_queued ? "wq" : "- ", + vpg->vpg_defer_uptodate ? "du" : "- ", PageWriteback(vmpage) ? "wb" : "-", vmpage, vmpage->mapping->host->i_ino, vmpage->mapping->host->i_generation, diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 76e7b4c..4991ce7 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -204,7 +204,7 @@ struct vvp_object { * A list of dirty pages pending IO in the cache. Used by * SOM. Protected by ll_inode_info::lli_lock. * - * \see ccc_page::cpg_pending_linkage + * \see vvp_page::vpg_pending_linkage */ struct list_head vob_pending_list; @@ -235,36 +235,34 @@ struct vvp_object { }; /** - * ccc-private page state. + * VVP-private page state. */ -struct ccc_page { - struct cl_page_slice cpg_cl; - int cpg_defer_uptodate; - int cpg_ra_used; - int cpg_write_queued; +struct vvp_page { + struct cl_page_slice vpg_cl; + int vpg_defer_uptodate; + int vpg_ra_used; + int vpg_write_queued; /** * Non-empty iff this page is already counted in * vvp_object::vob_pending_list. This list is only used as a flag, * that is, never iterated through, only checked for list_empty(), but * having a list is useful for debugging. */ - struct list_head cpg_pending_linkage; + struct list_head vpg_pending_linkage; /** VM page */ - struct page *cpg_page; + struct page *vpg_page; }; -static inline struct ccc_page *cl2ccc_page(const struct cl_page_slice *slice) +static inline struct vvp_page *cl2vvp_page(const struct cl_page_slice *slice) { - return container_of(slice, struct ccc_page, cpg_cl); + return container_of(slice, struct vvp_page, vpg_cl); } -static inline pgoff_t ccc_index(struct ccc_page *ccc) +static inline pgoff_t vvp_index(struct vvp_page *vvp) { - return ccc->cpg_cl.cpl_index; + return vvp->vpg_cl.cpl_index; } -struct cl_page *ccc_vmpage_page_transient(struct page *vmpage); - struct vvp_device { struct cl_device vdv_cl; struct super_block *vdv_sb; @@ -296,10 +294,6 @@ void ccc_global_fini(struct lu_device_type *device_type); int ccc_lock_init(const struct lu_env *env, struct cl_object *obj, struct cl_lock *lock, const struct cl_io *io, const struct cl_lock_operations *lkops); -int ccc_fail(const struct lu_env *env, const struct cl_page_slice *slice); -int ccc_transient_page_prep(const struct lu_env *env, - const struct cl_page_slice *slice, - struct cl_io *io); void ccc_lock_delete(const struct lu_env *env, const struct cl_lock_slice *slice); void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice); @@ -360,11 +354,15 @@ static inline struct inode *vvp_object_inode(const struct cl_object *obj) int vvp_object_invariant(const struct cl_object *obj); struct vvp_object *cl_inode2vvp(struct inode *inode); +static inline struct page *cl2vm_page(const struct cl_page_slice *slice) +{ + return cl2vvp_page(slice)->vpg_page; +} + struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice); struct ccc_io *cl2ccc_io(const struct lu_env *env, const struct cl_io_slice *slice); struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice); -struct page *cl2vm_page(const struct cl_page_slice *slice); int cl_setattr_ost(struct inode *inode, const struct iattr *attr); diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 1773cb2..eb6ce1c 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -645,15 +645,15 @@ static int vvp_io_commit_sync(const struct lu_env *env, struct cl_io *io, static void write_commit_callback(const struct lu_env *env, struct cl_io *io, struct cl_page *page) { - struct ccc_page *cp; + struct vvp_page *vpg; struct page *vmpage = page->cp_vmpage; struct cl_object *clob = cl_io_top(io)->ci_obj; SetPageUptodate(vmpage); set_page_dirty(vmpage); - cp = cl2ccc_page(cl_object_page_slice(clob, page)); - vvp_write_pending(cl2vvp(clob), cp); + vpg = cl2vvp_page(cl_object_page_slice(clob, page)); + vvp_write_pending(cl2vvp(clob), vpg); cl_page_disown(env, io, page); @@ -670,15 +670,15 @@ static bool page_list_sanity_check(struct cl_object *obj, pgoff_t index = CL_PAGE_EOF; cl_page_list_for_each(page, plist) { - struct ccc_page *cp = cl_object_page_slice(obj, page); + struct vvp_page *vpg = cl_object_page_slice(obj, page); if (index == CL_PAGE_EOF) { - index = ccc_index(cp); + index = vvp_index(vpg); continue; } ++index; - if (index == ccc_index(cp)) + if (index == vvp_index(vpg)) continue; return false; @@ -868,13 +868,13 @@ static int vvp_io_kernel_fault(struct vvp_fault_io *cfio) static void mkwrite_commit_callback(const struct lu_env *env, struct cl_io *io, struct cl_page *page) { - struct ccc_page *cp; + struct vvp_page *vpg; struct cl_object *clob = cl_io_top(io)->ci_obj; set_page_dirty(page->cp_vmpage); - cp = cl2ccc_page(cl_object_page_slice(clob, page)); - vvp_write_pending(cl2vvp(clob), cp); + vpg = cl2vvp_page(cl_object_page_slice(clob, page)); + vvp_write_pending(cl2vvp(clob), vpg); } static int vvp_io_fault_start(const struct lu_env *env, @@ -979,7 +979,7 @@ static int vvp_io_fault_start(const struct lu_env *env, wait_on_page_writeback(vmpage); if (!PageDirty(vmpage)) { struct cl_page_list *plist = &io->ci_queue.c2_qin; - struct ccc_page *cp = cl_object_page_slice(obj, page); + struct vvp_page *vpg = cl_object_page_slice(obj, page); int to = PAGE_SIZE; /* vvp_page_assume() calls wait_on_page_writeback(). */ @@ -989,7 +989,7 @@ static int vvp_io_fault_start(const struct lu_env *env, cl_page_list_add(plist, page); /* size fixup */ - if (last_index == ccc_index(cp)) + if (last_index == vvp_index(vpg)) to = size & ~PAGE_MASK; /* Do not set Dirty bit here so that in case IO is @@ -1058,7 +1058,7 @@ static int vvp_io_read_page(const struct lu_env *env, const struct cl_page_slice *slice) { struct cl_io *io = ios->cis_io; - struct ccc_page *cp = cl2ccc_page(slice); + struct vvp_page *vpg = cl2vvp_page(slice); struct cl_page *page = slice->cpl_page; struct inode *inode = vvp_object_inode(slice->cpl_obj); struct ll_sb_info *sbi = ll_i2sbi(inode); @@ -1068,11 +1068,11 @@ static int vvp_io_read_page(const struct lu_env *env, if (sbi->ll_ra_info.ra_max_pages_per_file && sbi->ll_ra_info.ra_max_pages) - ras_update(sbi, inode, ras, ccc_index(cp), - cp->cpg_defer_uptodate); + ras_update(sbi, inode, ras, vvp_index(vpg), + vpg->vpg_defer_uptodate); - if (cp->cpg_defer_uptodate) { - cp->cpg_ra_used = 1; + if (vpg->vpg_defer_uptodate) { + vpg->vpg_ra_used = 1; cl_page_export(env, page, 1); } /* @@ -1084,7 +1084,7 @@ static int vvp_io_read_page(const struct lu_env *env, if (sbi->ll_ra_info.ra_max_pages_per_file && sbi->ll_ra_info.ra_max_pages) ll_readahead(env, io, &queue->c2_qin, ras, - cp->cpg_defer_uptodate); + vpg->vpg_defer_uptodate); return 0; } diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c index 9f5e6a6..18c9df7 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_object.c +++ b/drivers/staging/lustre/lustre/llite/vvp_object.c @@ -226,7 +226,7 @@ static int vvp_object_init0(const struct lu_env *env, { vob->vob_inode = conf->coc_inode; vob->vob_transient_pages = 0; - cl_object_page_init(&vob->vob_cl, sizeof(struct ccc_page)); + cl_object_page_init(&vob->vob_cl, sizeof(struct vvp_page)); return 0; } diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c index 419a535..5ebbe27 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_page.c +++ b/drivers/staging/lustre/lustre/llite/vvp_page.c @@ -41,7 +41,13 @@ #define DEBUG_SUBSYSTEM S_LLITE -#include "../include/obd.h" +#include +#include +#include +#include +#include +#include + #include "../include/lustre_lite.h" #include "llite_internal.h" @@ -53,9 +59,9 @@ * */ -static void vvp_page_fini_common(struct ccc_page *cp) +static void vvp_page_fini_common(struct vvp_page *vpg) { - struct page *vmpage = cp->cpg_page; + struct page *vmpage = vpg->vpg_page; LASSERT(vmpage); page_cache_release(vmpage); @@ -64,23 +70,23 @@ static void vvp_page_fini_common(struct ccc_page *cp) static void vvp_page_fini(const struct lu_env *env, struct cl_page_slice *slice) { - struct ccc_page *cp = cl2ccc_page(slice); - struct page *vmpage = cp->cpg_page; + struct vvp_page *vpg = cl2vvp_page(slice); + struct page *vmpage = vpg->vpg_page; /* * vmpage->private was already cleared when page was moved into * VPG_FREEING state. */ LASSERT((struct cl_page *)vmpage->private != slice->cpl_page); - vvp_page_fini_common(cp); + vvp_page_fini_common(vpg); } static int vvp_page_own(const struct lu_env *env, const struct cl_page_slice *slice, struct cl_io *io, int nonblock) { - struct ccc_page *vpg = cl2ccc_page(slice); - struct page *vmpage = vpg->cpg_page; + struct vvp_page *vpg = cl2vvp_page(slice); + struct page *vmpage = vpg->vpg_page; LASSERT(vmpage); if (nonblock) { @@ -97,6 +103,7 @@ static int vvp_page_own(const struct lu_env *env, lock_page(vmpage); wait_on_page_writeback(vmpage); + return 0; } @@ -137,12 +144,12 @@ static void vvp_page_discard(const struct lu_env *env, struct cl_io *unused) { struct page *vmpage = cl2vm_page(slice); - struct ccc_page *cpg = cl2ccc_page(slice); + struct vvp_page *vpg = cl2vvp_page(slice); LASSERT(vmpage); LASSERT(PageLocked(vmpage)); - if (cpg->cpg_defer_uptodate && !cpg->cpg_ra_used) + if (vpg->vpg_defer_uptodate && !vpg->vpg_ra_used) ll_ra_stats_inc(vmpage->mapping->host, RA_STAT_DISCARDED); ll_invalidate_page(vmpage); @@ -161,7 +168,7 @@ static void vvp_page_delete(const struct lu_env *env, LASSERT((struct cl_page *)vmpage->private == page); LASSERT(inode == vvp_object_inode(obj)); - vvp_write_complete(cl2vvp(obj), cl2ccc_page(slice)); + vvp_write_complete(cl2vvp(obj), cl2vvp_page(slice)); /* Drop the reference count held in vvp_page_init */ refc = atomic_dec_return(&page->cp_ref); @@ -220,7 +227,7 @@ static int vvp_page_prep_write(const struct lu_env *env, if (!pg->cp_sync_io) set_page_writeback(vmpage); - vvp_write_pending(cl2vvp(slice->cpl_obj), cl2ccc_page(slice)); + vvp_write_pending(cl2vvp(slice->cpl_obj), cl2vvp_page(slice)); return 0; } @@ -257,22 +264,23 @@ static void vvp_page_completion_read(const struct lu_env *env, const struct cl_page_slice *slice, int ioret) { - struct ccc_page *cp = cl2ccc_page(slice); - struct page *vmpage = cp->cpg_page; + struct vvp_page *vpg = cl2vvp_page(slice); + struct page *vmpage = vpg->vpg_page; struct cl_page *page = slice->cpl_page; struct inode *inode = vvp_object_inode(page->cp_obj); LASSERT(PageLocked(vmpage)); CL_PAGE_HEADER(D_PAGE, env, page, "completing READ with %d\n", ioret); - if (cp->cpg_defer_uptodate) + if (vpg->vpg_defer_uptodate) ll_ra_count_put(ll_i2sbi(inode), 1); if (ioret == 0) { - if (!cp->cpg_defer_uptodate) + if (!vpg->vpg_defer_uptodate) cl_page_export(env, page, 1); - } else - cp->cpg_defer_uptodate = 0; + } else { + vpg->vpg_defer_uptodate = 0; + } if (!page->cp_sync_io) unlock_page(vmpage); @@ -282,9 +290,9 @@ static void vvp_page_completion_write(const struct lu_env *env, const struct cl_page_slice *slice, int ioret) { - struct ccc_page *cp = cl2ccc_page(slice); + struct vvp_page *vpg = cl2vvp_page(slice); struct cl_page *pg = slice->cpl_page; - struct page *vmpage = cp->cpg_page; + struct page *vmpage = vpg->vpg_page; CL_PAGE_HEADER(D_PAGE, env, pg, "completing WRITE with %d\n", ioret); @@ -298,8 +306,8 @@ static void vvp_page_completion_write(const struct lu_env *env, * and then re-add the page into pending transfer queue. -jay */ - cp->cpg_write_queued = 0; - vvp_write_complete(cl2vvp(slice->cpl_obj), cp); + vpg->vpg_write_queued = 0; + vvp_write_complete(cl2vvp(slice->cpl_obj), vpg); if (pg->cp_sync_io) { LASSERT(PageLocked(vmpage)); @@ -342,7 +350,7 @@ static int vvp_page_make_ready(const struct lu_env *env, LASSERT(pg->cp_state == CPS_CACHED); /* This actually clears the dirty bit in the radix tree. */ set_page_writeback(vmpage); - vvp_write_pending(cl2vvp(slice->cpl_obj), cl2ccc_page(slice)); + vvp_write_pending(cl2vvp(slice->cpl_obj), cl2vvp_page(slice)); CL_PAGE_HEADER(D_PAGE, env, pg, "readied\n"); } else if (pg->cp_state == CPS_PAGEOUT) { /* is it possible for osc_flush_async_page() to already @@ -376,12 +384,12 @@ static int vvp_page_print(const struct lu_env *env, const struct cl_page_slice *slice, void *cookie, lu_printer_t printer) { - struct ccc_page *vp = cl2ccc_page(slice); - struct page *vmpage = vp->cpg_page; + struct vvp_page *vpg = cl2vvp_page(slice); + struct page *vmpage = vpg->vpg_page; (*printer)(env, cookie, LUSTRE_VVP_NAME "-page@%p(%d:%d:%d) vm@%p ", - vp, vp->cpg_defer_uptodate, vp->cpg_ra_used, - vp->cpg_write_queued, vmpage); + vpg, vpg->vpg_defer_uptodate, vpg->vpg_ra_used, + vpg->vpg_write_queued, vmpage); if (vmpage) { (*printer)(env, cookie, "%lx %d:%d %lx %lu %slru", (long)vmpage->flags, page_count(vmpage), @@ -389,7 +397,20 @@ static int vvp_page_print(const struct lu_env *env, page_index(vmpage), list_empty(&vmpage->lru) ? "not-" : ""); } + (*printer)(env, cookie, "\n"); + + return 0; +} + +static int vvp_page_fail(const struct lu_env *env, + const struct cl_page_slice *slice) +{ + /* + * Cached read? + */ + LBUG(); + return 0; } @@ -409,16 +430,24 @@ static const struct cl_page_operations vvp_page_ops = { [CRT_READ] = { .cpo_prep = vvp_page_prep_read, .cpo_completion = vvp_page_completion_read, - .cpo_make_ready = ccc_fail, + .cpo_make_ready = vvp_page_fail, }, [CRT_WRITE] = { .cpo_prep = vvp_page_prep_write, .cpo_completion = vvp_page_completion_write, .cpo_make_ready = vvp_page_make_ready, - } - } + }, + }, }; +static int vvp_transient_page_prep(const struct lu_env *env, + const struct cl_page_slice *slice, + struct cl_io *unused) +{ + /* transient page should always be sent. */ + return 0; +} + static void vvp_transient_page_verify(const struct cl_page *page) { struct inode *inode = vvp_object_inode(page->cp_obj); @@ -492,11 +521,11 @@ vvp_transient_page_completion(const struct lu_env *env, static void vvp_transient_page_fini(const struct lu_env *env, struct cl_page_slice *slice) { - struct ccc_page *cp = cl2ccc_page(slice); + struct vvp_page *vpg = cl2vvp_page(slice); struct cl_page *clp = slice->cpl_page; struct vvp_object *clobj = cl2vvp(clp->cp_obj); - vvp_page_fini_common(cp); + vvp_page_fini_common(vpg); LASSERT(!inode_trylock(clobj->vob_inode)); clobj->vob_transient_pages--; } @@ -513,11 +542,11 @@ static const struct cl_page_operations vvp_transient_page_ops = { .cpo_is_under_lock = vvp_page_is_under_lock, .io = { [CRT_READ] = { - .cpo_prep = ccc_transient_page_prep, + .cpo_prep = vvp_transient_page_prep, .cpo_completion = vvp_transient_page_completion, }, [CRT_WRITE] = { - .cpo_prep = ccc_transient_page_prep, + .cpo_prep = vvp_transient_page_prep, .cpo_completion = vvp_transient_page_completion, } } @@ -526,27 +555,27 @@ static const struct cl_page_operations vvp_transient_page_ops = { int vvp_page_init(const struct lu_env *env, struct cl_object *obj, struct cl_page *page, pgoff_t index) { - struct ccc_page *cpg = cl_object_page_slice(obj, page); + struct vvp_page *vpg = cl_object_page_slice(obj, page); struct page *vmpage = page->cp_vmpage; CLOBINVRNT(env, obj, vvp_object_invariant(obj)); - cpg->cpg_page = vmpage; + vpg->vpg_page = vmpage; page_cache_get(vmpage); - INIT_LIST_HEAD(&cpg->cpg_pending_linkage); + INIT_LIST_HEAD(&vpg->vpg_pending_linkage); if (page->cp_type == CPT_CACHEABLE) { /* in cache, decref in vvp_page_delete */ atomic_inc(&page->cp_ref); SetPagePrivate(vmpage); vmpage->private = (unsigned long)page; - cl_page_slice_add(page, &cpg->cpg_cl, obj, index, + cl_page_slice_add(page, &vpg->vpg_cl, obj, index, &vvp_page_ops); } else { struct vvp_object *clobj = cl2vvp(obj); LASSERT(!inode_trylock(clobj->vob_inode)); - cl_page_slice_add(page, &cpg->cpg_cl, obj, index, + cl_page_slice_add(page, &vpg->vpg_cl, obj, index, &vvp_transient_page_ops); clobj->vob_transient_pages++; } -- cgit v0.10.2 From 4a4eee07f3f579e9ebc5b5db35214c3ada5c1378 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:49 -0400 Subject: staging/lustre/llite: rename ccc_lock to vvp_lock Rename struct ccc_lock to struct vvp_lock and merge the CCC lock methods into the VVP lock methods. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/13088 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: James Simmons Reviewed-by: Jinshan Xiong Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index 3488349..d509f94 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -1227,7 +1227,7 @@ struct cl_lock { /** * Per-layer part of cl_lock * - * \see ccc_lock, lov_lock, lovsub_lock, osc_lock + * \see vvp_lock, lov_lock, lovsub_lock, osc_lock */ struct cl_lock_slice { struct cl_lock *cls_lock; @@ -1254,7 +1254,7 @@ struct cl_lock_operations { * @anchor for resources * \retval -ve failure * - * \see ccc_lock_enqueue(), lov_lock_enqueue(), lovsub_lock_enqueue(), + * \see vvp_lock_enqueue(), lov_lock_enqueue(), lovsub_lock_enqueue(), * \see osc_lock_enqueue() */ int (*clo_enqueue)(const struct lu_env *env, @@ -1270,7 +1270,7 @@ struct cl_lock_operations { /** * Destructor. Frees resources and the slice. * - * \see ccc_lock_fini(), lov_lock_fini(), lovsub_lock_fini(), + * \see vvp_lock_fini(), lov_lock_fini(), lovsub_lock_fini(), * \see osc_lock_fini() */ void (*clo_fini)(const struct lu_env *env, struct cl_lock_slice *slice); diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 0762032..8884317 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -67,18 +67,12 @@ static const struct cl_req_operations ccc_req_ops; * ccc_ prefix stands for "Common Client Code". */ -static struct kmem_cache *ccc_lock_kmem; static struct kmem_cache *ccc_thread_kmem; static struct kmem_cache *ccc_session_kmem; static struct kmem_cache *ccc_req_kmem; static struct lu_kmem_descr ccc_caches[] = { { - .ckd_cache = &ccc_lock_kmem, - .ckd_name = "ccc_lock_kmem", - .ckd_size = sizeof(struct ccc_lock) - }, - { .ckd_cache = &ccc_thread_kmem, .ckd_name = "ccc_thread_kmem", .ckd_size = sizeof(struct ccc_thread_info), @@ -221,26 +215,6 @@ void ccc_global_fini(struct lu_device_type *device_type) lu_kmem_fini(ccc_caches); } -int ccc_lock_init(const struct lu_env *env, - struct cl_object *obj, struct cl_lock *lock, - const struct cl_io *unused, - const struct cl_lock_operations *lkops) -{ - struct ccc_lock *clk; - int result; - - CLOBINVRNT(env, obj, vvp_object_invariant(obj)); - - clk = kmem_cache_zalloc(ccc_lock_kmem, GFP_NOFS); - if (clk) { - cl_lock_slice_add(lock, &clk->clk_cl, obj, lkops); - result = 0; - } else { - result = -ENOMEM; - } - return result; -} - static void vvp_object_size_lock(struct cl_object *obj) { struct inode *inode = vvp_object_inode(obj); @@ -259,27 +233,6 @@ static void vvp_object_size_unlock(struct cl_object *obj) /***************************************************************************** * - * Lock operations. - * - */ - -void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice) -{ - struct ccc_lock *clk = cl2ccc_lock(slice); - - kmem_cache_free(ccc_lock_kmem, clk); -} - -int ccc_lock_enqueue(const struct lu_env *env, - const struct cl_lock_slice *slice, - struct cl_io *unused, struct cl_sync_io *anchor) -{ - CLOBINVRNT(env, slice->cls_obj, vvp_object_invariant(slice->cls_obj)); - return 0; -} - -/***************************************************************************** - * * io operations. * */ @@ -571,11 +524,6 @@ again: * */ -struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice) -{ - return container_of(slice, struct ccc_lock, clk_cl); -} - struct ccc_io *cl2ccc_io(const struct lu_env *env, const struct cl_io_slice *slice) { diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 3891b0d..4b77db3 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -57,11 +57,17 @@ * "llite_" (var. "ll_") prefix. */ +struct kmem_cache *vvp_lock_kmem; struct kmem_cache *vvp_object_kmem; static struct kmem_cache *vvp_thread_kmem; static struct kmem_cache *vvp_session_kmem; static struct lu_kmem_descr vvp_caches[] = { { + .ckd_cache = &vvp_lock_kmem, + .ckd_name = "vvp_lock_kmem", + .ckd_size = sizeof(struct vvp_lock), + }, + { .ckd_cache = &vvp_object_kmem, .ckd_name = "vvp_object_kmem", .ckd_size = sizeof(struct vvp_object), diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 4991ce7..403d2a7 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -128,6 +128,7 @@ int cl_is_normalio(const struct lu_env *env, const struct cl_io *io); extern struct lu_context_key ccc_key; extern struct lu_context_key ccc_session_key; +extern struct kmem_cache *vvp_lock_kmem; extern struct kmem_cache *vvp_object_kmem; struct ccc_thread_info { @@ -269,8 +270,8 @@ struct vvp_device { struct cl_device *vdv_next; }; -struct ccc_lock { - struct cl_lock_slice clk_cl; +struct vvp_lock { + struct cl_lock_slice vlk_cl; }; struct ccc_req { @@ -291,15 +292,6 @@ int ccc_req_init(const struct lu_env *env, struct cl_device *dev, void ccc_umount(const struct lu_env *env, struct cl_device *dev); int ccc_global_init(struct lu_device_type *device_type); void ccc_global_fini(struct lu_device_type *device_type); -int ccc_lock_init(const struct lu_env *env, struct cl_object *obj, - struct cl_lock *lock, const struct cl_io *io, - const struct cl_lock_operations *lkops); -void ccc_lock_delete(const struct lu_env *env, - const struct cl_lock_slice *slice); -void ccc_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice); -int ccc_lock_enqueue(const struct lu_env *env, - const struct cl_lock_slice *slice, - struct cl_io *io, struct cl_sync_io *anchor); int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io, __u32 enqflags, enum cl_lock_mode mode, @@ -359,7 +351,11 @@ static inline struct page *cl2vm_page(const struct cl_page_slice *slice) return cl2vvp_page(slice)->vpg_page; } -struct ccc_lock *cl2ccc_lock(const struct cl_lock_slice *slice); +static inline struct vvp_lock *cl2vvp_lock(const struct cl_lock_slice *slice) +{ + return container_of(slice, struct vvp_lock, vlk_cl); +} + struct ccc_io *cl2ccc_io(const struct lu_env *env, const struct cl_io_slice *slice); struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice); diff --git a/drivers/staging/lustre/lustre/llite/vvp_lock.c b/drivers/staging/lustre/lustre/llite/vvp_lock.c index 8c505a6..f5bd6c2 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_lock.c +++ b/drivers/staging/lustre/lustre/llite/vvp_lock.c @@ -40,7 +40,7 @@ #define DEBUG_SUBSYSTEM S_LLITE -#include "../include/obd.h" +#include "../include/obd_support.h" #include "../include/lustre_lite.h" #include "vvp_internal.h" @@ -51,13 +51,41 @@ * */ +static void vvp_lock_fini(const struct lu_env *env, struct cl_lock_slice *slice) +{ + struct vvp_lock *vlk = cl2vvp_lock(slice); + + kmem_cache_free(vvp_lock_kmem, vlk); +} + +static int vvp_lock_enqueue(const struct lu_env *env, + const struct cl_lock_slice *slice, + struct cl_io *unused, struct cl_sync_io *anchor) +{ + CLOBINVRNT(env, slice->cls_obj, vvp_object_invariant(slice->cls_obj)); + + return 0; +} + static const struct cl_lock_operations vvp_lock_ops = { - .clo_fini = ccc_lock_fini, - .clo_enqueue = ccc_lock_enqueue + .clo_fini = vvp_lock_fini, + .clo_enqueue = vvp_lock_enqueue, }; int vvp_lock_init(const struct lu_env *env, struct cl_object *obj, - struct cl_lock *lock, const struct cl_io *io) + struct cl_lock *lock, const struct cl_io *unused) { - return ccc_lock_init(env, obj, lock, io, &vvp_lock_ops); + struct vvp_lock *vlk; + int result; + + CLOBINVRNT(env, obj, vvp_object_invariant(obj)); + + vlk = kmem_cache_zalloc(vvp_lock_kmem, GFP_NOFS); + if (vlk) { + cl_lock_slice_add(lock, &vlk->vlk_cl, obj, &vvp_lock_ops); + result = 0; + } else { + result = -ENOMEM; + } + return result; } -- cgit v0.10.2 From bc4320a9186ccace8887eac930b574491ae886c0 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:50 -0400 Subject: staging/lustre:llite: remove struct ll_ra_read Ever since removal of the the unused function ll_ra_read_get(), the struct ll_ra_read members lrr_reader and lrr_linkage and the struct ll_readahead_state member ras_read_beads unnecessary so remove them. In struct vvp_io replace the struct ll_ra_read cui_bead member with cui_ra_start and cui_ra_count. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/13347 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Bobi Jam Reviewed-by: Lai Siyao Reviewed-by: Jinshan Xiong Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 78b3edd..9dd4325 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -528,13 +528,6 @@ struct ll_sb_info { struct completion ll_kobj_unregister; }; -struct ll_ra_read { - pgoff_t lrr_start; - pgoff_t lrr_count; - struct task_struct *lrr_reader; - struct list_head lrr_linkage; -}; - /* * per file-descriptor read-ahead data. */ @@ -593,12 +586,6 @@ struct ll_readahead_state { */ unsigned long ras_request_index; /* - * list of struct ll_ra_read's one per read(2) call current in - * progress against this file descriptor. Used by read-ahead code, - * protected by ->ras_lock. - */ - struct list_head ras_read_beads; - /* * The following 3 items are used for detecting the stride I/O * mode. * In stride I/O mode, @@ -666,8 +653,7 @@ static inline int ll_need_32bit_api(struct ll_sb_info *sbi) #endif } -void ll_ra_read_in(struct file *f, struct ll_ra_read *rar); -void ll_ra_read_ex(struct file *f, struct ll_ra_read *rar); +void ll_ras_enter(struct file *f); /* llite/lproc_llite.c */ int ldebugfs_register_mountpoint(struct dentry *parent, @@ -876,14 +862,12 @@ struct vvp_io { } fault; } fault; } u; - /** - * Read-ahead state used by read and page-fault IO contexts. - */ - struct ll_ra_read cui_bead; - /** - * Set when cui_bead has been initialized. - */ - int cui_ra_window_set; + + /* Readahead state. */ + pgoff_t cui_ra_start; + pgoff_t cui_ra_count; + /* Set when cui_ra_{start,count} have been initialized. */ + bool cui_ra_valid; }; /** diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index 2c4d4c4..f06d8be 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -258,38 +258,15 @@ static int index_in_window(unsigned long index, unsigned long point, return start <= index && index <= end; } -static struct ll_readahead_state *ll_ras_get(struct file *f) +void ll_ras_enter(struct file *f) { - struct ll_file_data *fd; - - fd = LUSTRE_FPRIVATE(f); - return &fd->fd_ras; -} - -void ll_ra_read_in(struct file *f, struct ll_ra_read *rar) -{ - struct ll_readahead_state *ras; - - ras = ll_ras_get(f); + struct ll_file_data *fd = LUSTRE_FPRIVATE(f); + struct ll_readahead_state *ras = &fd->fd_ras; spin_lock(&ras->ras_lock); ras->ras_requests++; ras->ras_request_index = 0; ras->ras_consecutive_requests++; - rar->lrr_reader = current; - - list_add(&rar->lrr_linkage, &ras->ras_read_beads); - spin_unlock(&ras->ras_lock); -} - -void ll_ra_read_ex(struct file *f, struct ll_ra_read *rar) -{ - struct ll_readahead_state *ras; - - ras = ll_ras_get(f); - - spin_lock(&ras->ras_lock); - list_del_init(&rar->lrr_linkage); spin_unlock(&ras->ras_lock); } @@ -551,7 +528,6 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, unsigned long start = 0, end = 0, reserved; unsigned long ra_end, len, mlen = 0; struct inode *inode; - struct ll_ra_read *bead; struct ra_io_arg *ria = &vti->vti_ria; struct cl_object *clob; int ret = 0; @@ -575,17 +551,15 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, } spin_lock(&ras->ras_lock); - if (vio->cui_ra_window_set) - bead = &vio->cui_bead; - else - bead = NULL; /* Enlarge the RA window to encompass the full read */ - if (bead && ras->ras_window_start + ras->ras_window_len < - bead->lrr_start + bead->lrr_count) { - ras->ras_window_len = bead->lrr_start + bead->lrr_count - + if (vio->cui_ra_valid && + ras->ras_window_start + ras->ras_window_len < + vio->cui_ra_start + vio->cui_ra_count) { + ras->ras_window_len = vio->cui_ra_start + vio->cui_ra_count - ras->ras_window_start; } + /* Reserve a part of the read-ahead window that we'll be issuing */ if (ras->ras_window_len) { start = ras->ras_next_readahead; @@ -641,15 +615,15 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, CDEBUG(D_READA, DFID ": ria: %lu/%lu, bead: %lu/%lu, hit: %d\n", PFID(lu_object_fid(&clob->co_lu)), ria->ria_start, ria->ria_end, - !bead ? 0 : bead->lrr_start, - !bead ? 0 : bead->lrr_count, + vio->cui_ra_valid ? vio->cui_ra_start : 0, + vio->cui_ra_valid ? vio->cui_ra_count : 0, hit); /* at least to extend the readahead window to cover current read */ - if (!hit && bead && - bead->lrr_start + bead->lrr_count > ria->ria_start) { + if (!hit && vio->cui_ra_valid && + vio->cui_ra_start + vio->cui_ra_count > ria->ria_start) { /* to the end of current read window. */ - mlen = bead->lrr_start + bead->lrr_count - ria->ria_start; + mlen = vio->cui_ra_start + vio->cui_ra_count - ria->ria_start; /* trim to RPC boundary */ start = ria->ria_start & (PTLRPC_MAX_BRW_PAGES - 1); mlen = min(mlen, PTLRPC_MAX_BRW_PAGES - start); @@ -730,7 +704,6 @@ void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras) spin_lock_init(&ras->ras_lock); ras_reset(inode, ras, 0); ras->ras_requests = 0; - INIT_LIST_HEAD(&ras->ras_read_beads); } /* diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index eb6ce1c..86e73d5 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -500,7 +500,6 @@ static int vvp_io_read_start(const struct lu_env *env, struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; struct inode *inode = vvp_object_inode(obj); - struct ll_ra_read *bead = &vio->cui_bead; struct file *file = cio->cui_fd->fd_file; int result; @@ -530,14 +529,11 @@ static int vvp_io_read_start(const struct lu_env *env, cio->cui_fd->fd_file->f_ra.ra_pages = 0; /* initialize read-ahead window once per syscall */ - if (!vio->cui_ra_window_set) { - vio->cui_ra_window_set = 1; - bead->lrr_start = cl_index(obj, pos); - /* - * XXX: explicit PAGE_CACHE_SIZE - */ - bead->lrr_count = cl_index(obj, tot + PAGE_CACHE_SIZE - 1); - ll_ra_read_in(file, bead); + if (!vio->cui_ra_valid) { + vio->cui_ra_valid = true; + vio->cui_ra_start = cl_index(obj, pos); + vio->cui_ra_count = cl_index(obj, tot + PAGE_CACHE_SIZE - 1); + ll_ras_enter(file); } /* BUG: 5972 */ @@ -574,17 +570,6 @@ out: return result; } -static void vvp_io_read_fini(const struct lu_env *env, const struct cl_io_slice *ios) -{ - struct vvp_io *vio = cl2vvp_io(env, ios); - struct ccc_io *cio = cl2ccc_io(env, ios); - - if (vio->cui_ra_window_set) - ll_ra_read_ex(cio->cui_fd->fd_file, &vio->cui_bead); - - vvp_io_fini(env, ios); -} - static int vvp_io_commit_sync(const struct lu_env *env, struct cl_io *io, struct cl_page_list *plist, int from, int to) { @@ -1092,10 +1077,10 @@ static int vvp_io_read_page(const struct lu_env *env, static const struct cl_io_operations vvp_io_ops = { .op = { [CIT_READ] = { - .cio_fini = vvp_io_read_fini, + .cio_fini = vvp_io_fini, .cio_lock = vvp_io_read_lock, .cio_start = vvp_io_read_start, - .cio_advance = ccc_io_advance + .cio_advance = ccc_io_advance, }, [CIT_WRITE] = { .cio_fini = vvp_io_fini, @@ -1148,7 +1133,7 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, CL_IO_SLICE_CLEAN(cio, cui_cl); cl_io_slice_add(io, &cio->cui_cl, obj, &vvp_io_ops); - vio->cui_ra_window_set = 0; + vio->cui_ra_valid = false; result = 0; if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE) { size_t count; -- cgit v0.10.2 From 10cdef73396c816e9844e467558c2f87776fc11f Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:51 -0400 Subject: staging/lustre/llite: merge ccc_io and vvp_io Move the contents of struct vvp_io into struct ccc_io, delete the former, and rename the latter to struct vvp_io. Rename various ccc_io related functions to use vvp rather than ccc. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/13351 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Lai Siyao Reviewed-by: Jinshan Xiong Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index d509f94..104dc9f 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -1461,7 +1461,7 @@ enum cl_io_state { * This is usually embedded into layer session data, rather than allocated * dynamically. * - * \see vvp_io, lov_io, osc_io, ccc_io + * \see vvp_io, lov_io, osc_io */ struct cl_io_slice { struct cl_io *cis_io; diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index bf2a5ee..27e7e65 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -1135,14 +1135,13 @@ restart: ll_io_init(io, file, iot == CIT_WRITE); if (cl_io_rw_init(env, io, iot, *ppos, count) == 0) { - struct vvp_io *vio = vvp_env_io(env); - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); int write_mutex_locked = 0; cio->cui_fd = LUSTRE_FPRIVATE(file); - vio->cui_io_subtype = args->via_io_subtype; + cio->cui_io_subtype = args->via_io_subtype; - switch (vio->cui_io_subtype) { + switch (cio->cui_io_subtype) { case IO_NORMAL: cio->cui_iter = args->u.normal.via_iter; cio->cui_iocb = args->u.normal.via_iocb; @@ -1158,11 +1157,11 @@ restart: down_read(&lli->lli_trunc_sem); break; case IO_SPLICE: - vio->u.splice.cui_pipe = args->u.splice.via_pipe; - vio->u.splice.cui_flags = args->u.splice.via_flags; + cio->u.splice.cui_pipe = args->u.splice.via_pipe; + cio->u.splice.cui_flags = args->u.splice.via_flags; break; default: - CERROR("Unknown IO type - %u\n", vio->cui_io_subtype); + CERROR("Unknown IO type - %u\n", cio->cui_io_subtype); LBUG(); } result = cl_io_loop(env, io); diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 8884317..9a9d706 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -68,7 +68,6 @@ static const struct cl_req_operations ccc_req_ops; */ static struct kmem_cache *ccc_thread_kmem; -static struct kmem_cache *ccc_session_kmem; static struct kmem_cache *ccc_req_kmem; static struct lu_kmem_descr ccc_caches[] = { @@ -78,11 +77,6 @@ static struct lu_kmem_descr ccc_caches[] = { .ckd_size = sizeof(struct ccc_thread_info), }, { - .ckd_cache = &ccc_session_kmem, - .ckd_name = "ccc_session_kmem", - .ckd_size = sizeof(struct ccc_session) - }, - { .ckd_cache = &ccc_req_kmem, .ckd_name = "ccc_req_kmem", .ckd_size = sizeof(struct ccc_req) @@ -116,37 +110,12 @@ void ccc_key_fini(const struct lu_context *ctx, kmem_cache_free(ccc_thread_kmem, info); } -void *ccc_session_key_init(const struct lu_context *ctx, - struct lu_context_key *key) -{ - struct ccc_session *session; - - session = kmem_cache_zalloc(ccc_session_kmem, GFP_NOFS); - if (!session) - session = ERR_PTR(-ENOMEM); - return session; -} - -void ccc_session_key_fini(const struct lu_context *ctx, - struct lu_context_key *key, void *data) -{ - struct ccc_session *session = data; - - kmem_cache_free(ccc_session_kmem, session); -} - struct lu_context_key ccc_key = { .lct_tags = LCT_CL_THREAD, .lct_init = ccc_key_init, .lct_fini = ccc_key_fini }; -struct lu_context_key ccc_session_key = { - .lct_tags = LCT_SESSION, - .lct_init = ccc_session_key_init, - .lct_fini = ccc_session_key_fini -}; - int ccc_req_init(const struct lu_env *env, struct cl_device *dev, struct cl_req *req) { @@ -237,11 +206,11 @@ static void vvp_object_size_unlock(struct cl_object *obj) * */ -int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io, +int vvp_io_one_lock_index(const struct lu_env *env, struct cl_io *io, __u32 enqflags, enum cl_lock_mode mode, pgoff_t start, pgoff_t end) { - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); struct cl_lock_descr *descr = &cio->cui_link.cill_descr; struct cl_object *obj = io->ci_obj; @@ -266,8 +235,8 @@ int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io, return 0; } -void ccc_io_update_iov(const struct lu_env *env, - struct ccc_io *cio, struct cl_io *io) +void vvp_io_update_iov(const struct lu_env *env, + struct vvp_io *cio, struct cl_io *io) { size_t size = io->u.ci_rw.crw_count; @@ -277,27 +246,27 @@ void ccc_io_update_iov(const struct lu_env *env, iov_iter_truncate(cio->cui_iter, size); } -int ccc_io_one_lock(const struct lu_env *env, struct cl_io *io, +int vvp_io_one_lock(const struct lu_env *env, struct cl_io *io, __u32 enqflags, enum cl_lock_mode mode, loff_t start, loff_t end) { struct cl_object *obj = io->ci_obj; - return ccc_io_one_lock_index(env, io, enqflags, mode, + return vvp_io_one_lock_index(env, io, enqflags, mode, cl_index(obj, start), cl_index(obj, end)); } -void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios) +void vvp_io_end(const struct lu_env *env, const struct cl_io_slice *ios) { CLOBINVRNT(env, ios->cis_io->ci_obj, vvp_object_invariant(ios->cis_io->ci_obj)); } -void ccc_io_advance(const struct lu_env *env, +void vvp_io_advance(const struct lu_env *env, const struct cl_io_slice *ios, size_t nob) { - struct ccc_io *cio = cl2ccc_io(env, ios); + struct vvp_io *cio = cl2vvp_io(env, ios); struct cl_io *io = ios->cis_io; struct cl_object *obj = ios->cis_io->ci_obj; @@ -492,7 +461,7 @@ int cl_setattr_ost(struct inode *inode, const struct iattr *attr) again: if (cl_io_init(env, io, CIT_SETATTR, io->ci_obj) == 0) { - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); if (attr->ia_valid & ATTR_FILE) /* populate the file descriptor for ftruncate to honor @@ -524,13 +493,14 @@ again: * */ -struct ccc_io *cl2ccc_io(const struct lu_env *env, +struct vvp_io *cl2vvp_io(const struct lu_env *env, const struct cl_io_slice *slice) { - struct ccc_io *cio; + struct vvp_io *cio; + + cio = container_of(slice, struct vvp_io, cui_cl); + LASSERT(cio == vvp_env_io(env)); - cio = container_of(slice, struct ccc_io, cui_cl); - LASSERT(cio == ccc_env_io(env)); return cio; } diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 9dd4325..9856bb6 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -817,59 +817,6 @@ struct ll_close_queue { void vvp_write_pending(struct vvp_object *club, struct vvp_page *page); void vvp_write_complete(struct vvp_object *club, struct vvp_page *page); -/* specific architecture can implement only part of this list */ -enum vvp_io_subtype { - /** normal IO */ - IO_NORMAL, - /** io started from splice_{read|write} */ - IO_SPLICE -}; - -/* IO subtypes */ -struct vvp_io { - /** io subtype */ - enum vvp_io_subtype cui_io_subtype; - - union { - struct { - struct pipe_inode_info *cui_pipe; - unsigned int cui_flags; - } splice; - struct vvp_fault_io { - /** - * Inode modification time that is checked across DLM - * lock request. - */ - time64_t ft_mtime; - struct vm_area_struct *ft_vma; - /** - * locked page returned from vvp_io - */ - struct page *ft_vmpage; - struct vm_fault_api { - /** - * kernel fault info - */ - struct vm_fault *ft_vmf; - /** - * fault API used bitflags for return code. - */ - unsigned int ft_flags; - /** - * check that flags are from filemap_fault - */ - bool ft_flags_valid; - } fault; - } fault; - } u; - - /* Readahead state. */ - pgoff_t cui_ra_start; - pgoff_t cui_ra_count; - /* Set when cui_ra_{start,count} have been initialized. */ - bool cui_ra_valid; -}; - /** * IO arguments for various VFS I/O interfaces. */ @@ -923,25 +870,6 @@ static inline struct vvp_io_args *vvp_env_args(const struct lu_env *env, return ret; } -struct vvp_session { - struct vvp_io vs_ios; -}; - -static inline struct vvp_session *vvp_env_session(const struct lu_env *env) -{ - extern struct lu_context_key vvp_session_key; - struct vvp_session *ses; - - ses = lu_context_key_get(env->le_ses, &vvp_session_key); - LASSERT(ses); - return ses; -} - -static inline struct vvp_io *vvp_env_io(const struct lu_env *env) -{ - return &vvp_env_session(env)->vs_ios; -} - int vvp_global_init(void); void vvp_global_fini(void); diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c index 1263da8..7c214f8 100644 --- a/drivers/staging/lustre/lustre/llite/llite_mmap.c +++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c @@ -146,7 +146,7 @@ ll_fault_io_init(struct vm_area_struct *vma, struct lu_env **env_ret, rc = cl_io_init(env, io, CIT_FAULT, io->ci_obj); if (rc == 0) { - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); struct ll_file_data *fd = LUSTRE_FPRIVATE(file); LASSERT(cio->cui_cl.cis_io == io); @@ -307,17 +307,17 @@ static int ll_fault0(struct vm_area_struct *vma, struct vm_fault *vmf) vio = vvp_env_io(env); vio->u.fault.ft_vma = vma; vio->u.fault.ft_vmpage = NULL; - vio->u.fault.fault.ft_vmf = vmf; - vio->u.fault.fault.ft_flags = 0; - vio->u.fault.fault.ft_flags_valid = false; + vio->u.fault.ft_vmf = vmf; + vio->u.fault.ft_flags = 0; + vio->u.fault.ft_flags_valid = false; result = cl_io_loop(env, io); /* ft_flags are only valid if we reached * the call to filemap_fault */ - if (vio->u.fault.fault.ft_flags_valid) - fault_ret = vio->u.fault.fault.ft_flags; + if (vio->u.fault.ft_flags_valid) + fault_ret = vio->u.fault.ft_flags; vmpage = vio->u.fault.ft_vmpage; if (result != 0 && vmpage) { diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index f06d8be..da44107 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -90,7 +90,7 @@ struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage) struct lu_env *env; struct cl_io *io; struct cl_object *clob; - struct ccc_io *cio; + struct vvp_io *cio; int refcheck; int result = 0; @@ -108,7 +108,7 @@ struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage) lcc->lcc_refcheck = refcheck; lcc->lcc_cookie = current; - cio = ccc_env_io(env); + cio = vvp_env_io(env); io = cio->cui_cl.cis_io; lcc->lcc_io = io; if (!io) { diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index bb85629..2f69634 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -376,7 +376,7 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter, env = cl_env_get(&refcheck); LASSERT(!IS_ERR(env)); - io = ccc_env_io(env)->cui_cl.cis_io; + io = vvp_env_io(env)->cui_cl.cis_io; LASSERT(io); /* 0. Need locking between buffered and direct access. and race with @@ -439,7 +439,7 @@ out: inode_unlock(inode); if (tot_bytes > 0) { - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); /* no commit async for direct IO */ cio->u.write.cui_written += tot_bytes; @@ -513,7 +513,7 @@ static int ll_write_begin(struct file *file, struct address_space *mapping, /* To avoid deadlock, try to lock page first. */ vmpage = grab_cache_page_nowait(mapping, index); if (unlikely(!vmpage || PageDirty(vmpage) || PageWriteback(vmpage))) { - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); struct cl_page_list *plist = &cio->u.write.cui_queue; /* if the page is already in dirty cache, we have to commit @@ -595,7 +595,7 @@ static int ll_write_end(struct file *file, struct address_space *mapping, struct ll_cl_context *lcc = fsdata; struct lu_env *env; struct cl_io *io; - struct ccc_io *cio; + struct vvp_io *cio; struct cl_page *page; unsigned from = pos & (PAGE_CACHE_SIZE - 1); bool unplug = false; @@ -606,7 +606,7 @@ static int ll_write_end(struct file *file, struct address_space *mapping, env = lcc->lcc_env; page = lcc->lcc_page; io = lcc->lcc_io; - cio = ccc_env_io(env); + cio = vvp_env_io(env); LASSERT(cl_page_is_owned(page, io)); if (copied > 0) { diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 4b77db3..030a246 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -138,7 +138,7 @@ struct lu_context_key vvp_session_key = { }; /* type constructor/destructor: vvp_type_{init,fini,start,stop}(). */ -LU_TYPE_INIT_FINI(vvp, &ccc_key, &ccc_session_key, &vvp_key, &vvp_session_key); +LU_TYPE_INIT_FINI(vvp, &ccc_key, &vvp_key, &vvp_session_key); static const struct lu_device_operations vvp_lu_ops = { .ldo_object_alloc = vvp_object_alloc diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 403d2a7..443485c 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -81,10 +81,18 @@ enum ccc_setattr_lock_type { SETATTR_MATCH_LOCK }; +/* specific architecture can implement only part of this list */ +enum vvp_io_subtype { + /** normal IO */ + IO_NORMAL, + /** io started from splice_{read|write} */ + IO_SPLICE +}; + /** - * IO state private to vvp or slp layers. + * IO state private to IO state private to VVP layer. */ -struct ccc_io { +struct vvp_io { /** super class */ struct cl_io_slice cui_cl; struct cl_io_lock_link cui_link; @@ -98,16 +106,47 @@ struct ccc_io { size_t cui_tot_count; union { + struct vvp_fault_io { + /** + * Inode modification time that is checked across DLM + * lock request. + */ + time64_t ft_mtime; + struct vm_area_struct *ft_vma; + /** + * locked page returned from vvp_io + */ + struct page *ft_vmpage; + /** + * kernel fault info + */ + struct vm_fault *ft_vmf; + /** + * fault API used bitflags for return code. + */ + unsigned int ft_flags; + /** + * check that flags are from filemap_fault + */ + bool ft_flags_valid; + } fault; struct { enum ccc_setattr_lock_type cui_local_lock; } setattr; struct { + struct pipe_inode_info *cui_pipe; + unsigned int cui_flags; + } splice; + struct { struct cl_page_list cui_queue; unsigned long cui_written; int cui_from; int cui_to; } write; } u; + + enum vvp_io_subtype cui_io_subtype; + /** * Layout version when this IO is initialized */ @@ -117,6 +156,12 @@ struct ccc_io { */ struct ll_file_data *cui_fd; struct kiocb *cui_iocb; + + /* Readahead state. */ + pgoff_t cui_ra_start; + pgoff_t cui_ra_count; + /* Set when cui_ra_{start,count} have been initialized. */ + bool cui_ra_valid; }; /** @@ -126,7 +171,7 @@ struct ccc_io { int cl_is_normalio(const struct lu_env *env, const struct cl_io *io); extern struct lu_context_key ccc_key; -extern struct lu_context_key ccc_session_key; +extern struct lu_context_key vvp_session_key; extern struct kmem_cache *vvp_lock_kmem; extern struct kmem_cache *vvp_object_kmem; @@ -174,23 +219,23 @@ static inline struct cl_io *ccc_env_thread_io(const struct lu_env *env) return io; } -struct ccc_session { - struct ccc_io cs_ios; +struct vvp_session { + struct vvp_io cs_ios; }; -static inline struct ccc_session *ccc_env_session(const struct lu_env *env) +static inline struct vvp_session *vvp_env_session(const struct lu_env *env) { - struct ccc_session *ses; + struct vvp_session *ses; - ses = lu_context_key_get(env->le_ses, &ccc_session_key); + ses = lu_context_key_get(env->le_ses, &vvp_session_key); LASSERT(ses); return ses; } -static inline struct ccc_io *ccc_env_io(const struct lu_env *env) +static inline struct vvp_io *vvp_env_io(const struct lu_env *env) { - return &ccc_env_session(env)->cs_ios; + return &vvp_env_session(env)->cs_ios; } /** @@ -282,10 +327,6 @@ void *ccc_key_init(const struct lu_context *ctx, struct lu_context_key *key); void ccc_key_fini(const struct lu_context *ctx, struct lu_context_key *key, void *data); -void *ccc_session_key_init(const struct lu_context *ctx, - struct lu_context_key *key); -void ccc_session_key_fini(const struct lu_context *ctx, - struct lu_context_key *key, void *data); int ccc_req_init(const struct lu_env *env, struct cl_device *dev, struct cl_req *req); @@ -293,16 +334,16 @@ void ccc_umount(const struct lu_env *env, struct cl_device *dev); int ccc_global_init(struct lu_device_type *device_type); void ccc_global_fini(struct lu_device_type *device_type); -int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io, +int vvp_io_one_lock_index(const struct lu_env *env, struct cl_io *io, __u32 enqflags, enum cl_lock_mode mode, pgoff_t start, pgoff_t end); -int ccc_io_one_lock(const struct lu_env *env, struct cl_io *io, +int vvp_io_one_lock(const struct lu_env *env, struct cl_io *io, __u32 enqflags, enum cl_lock_mode mode, loff_t start, loff_t end); -void ccc_io_end(const struct lu_env *env, const struct cl_io_slice *ios); -void ccc_io_advance(const struct lu_env *env, const struct cl_io_slice *ios, +void vvp_io_end(const struct lu_env *env, const struct cl_io_slice *ios); +void vvp_io_advance(const struct lu_env *env, const struct cl_io_slice *ios, size_t nob); -void ccc_io_update_iov(const struct lu_env *env, struct ccc_io *cio, +void vvp_io_update_iov(const struct lu_env *env, struct vvp_io *cio, struct cl_io *io); int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, struct cl_io *io, loff_t start, size_t count, int *exceed); @@ -356,7 +397,7 @@ static inline struct vvp_lock *cl2vvp_lock(const struct cl_lock_slice *slice) return container_of(slice, struct vvp_lock, vlk_cl); } -struct ccc_io *cl2ccc_io(const struct lu_env *env, +struct vvp_io *cl2vvp_io(const struct lu_env *env, const struct cl_io_slice *slice); struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice); diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 86e73d5..1059c63 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -47,9 +47,6 @@ #include "llite_internal.h" #include "vvp_internal.h" -static struct vvp_io *cl2vvp_io(const struct lu_env *env, - const struct cl_io_slice *slice); - /** * True, if \a io is a normal io, False for splice_{read,write} */ @@ -72,7 +69,7 @@ static bool can_populate_pages(const struct lu_env *env, struct cl_io *io, struct inode *inode) { struct ll_inode_info *lli = ll_i2info(inode); - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); bool rc = true; switch (io->ci_type) { @@ -105,7 +102,7 @@ static bool can_populate_pages(const struct lu_env *env, struct cl_io *io, static int vvp_io_write_iter_init(const struct lu_env *env, const struct cl_io_slice *ios) { - struct ccc_io *cio = cl2ccc_io(env, ios); + struct vvp_io *cio = cl2vvp_io(env, ios); cl_page_list_init(&cio->u.write.cui_queue); cio->u.write.cui_written = 0; @@ -118,7 +115,7 @@ static int vvp_io_write_iter_init(const struct lu_env *env, static void vvp_io_write_iter_fini(const struct lu_env *env, const struct cl_io_slice *ios) { - struct ccc_io *cio = cl2ccc_io(env, ios); + struct vvp_io *cio = cl2vvp_io(env, ios); LASSERT(cio->u.write.cui_queue.pl_nr == 0); } @@ -129,8 +126,7 @@ static int vvp_io_fault_iter_init(const struct lu_env *env, struct vvp_io *vio = cl2vvp_io(env, ios); struct inode *inode = vvp_object_inode(ios->cis_obj); - LASSERT(inode == - file_inode(cl2ccc_io(env, ios)->cui_fd->fd_file)); + LASSERT(inode == file_inode(vio->cui_fd->fd_file)); vio->u.fault.ft_mtime = inode->i_mtime.tv_sec; return 0; } @@ -139,7 +135,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) { struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; - struct ccc_io *cio = cl2ccc_io(env, ios); + struct vvp_io *cio = cl2vvp_io(env, ios); CLOBINVRNT(env, obj, vvp_object_invariant(obj)); @@ -225,7 +221,7 @@ static enum cl_lock_mode vvp_mode_from_vma(struct vm_area_struct *vma) } static int vvp_mmap_locks(const struct lu_env *env, - struct ccc_io *vio, struct cl_io *io) + struct vvp_io *vio, struct cl_io *io) { struct ccc_thread_info *cti = ccc_env_info(env); struct mm_struct *mm = current->mm; @@ -310,19 +306,19 @@ static int vvp_mmap_locks(const struct lu_env *env, static int vvp_io_rw_lock(const struct lu_env *env, struct cl_io *io, enum cl_lock_mode mode, loff_t start, loff_t end) { - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); int result; int ast_flags = 0; LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE); - ccc_io_update_iov(env, cio, io); + vvp_io_update_iov(env, cio, io); if (io->u.ci_rw.crw_nonblock) ast_flags |= CEF_NONBLOCK; result = vvp_mmap_locks(env, cio, io); if (result == 0) - result = ccc_io_one_lock(env, io, ast_flags, mode, start, end); + result = vvp_io_one_lock(env, io, ast_flags, mode, start, end); return result; } @@ -347,9 +343,11 @@ static int vvp_io_fault_lock(const struct lu_env *env, /* * XXX LDLM_FL_CBPENDING */ - return ccc_io_one_lock_index - (env, io, 0, vvp_mode_from_vma(vio->u.fault.ft_vma), - io->u.ci_fault.ft_index, io->u.ci_fault.ft_index); + return vvp_io_one_lock_index(env, + io, 0, + vvp_mode_from_vma(vio->u.fault.ft_vma), + io->u.ci_fault.ft_index, + io->u.ci_fault.ft_index); } static int vvp_io_write_lock(const struct lu_env *env, @@ -383,7 +381,7 @@ static int vvp_io_setattr_iter_init(const struct lu_env *env, static int vvp_io_setattr_lock(const struct lu_env *env, const struct cl_io_slice *ios) { - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); struct cl_io *io = ios->cis_io; __u64 new_size; __u32 enqflags = 0; @@ -401,7 +399,8 @@ static int vvp_io_setattr_lock(const struct lu_env *env, new_size = 0; } cio->u.setattr.cui_local_lock = SETATTR_EXTENT_LOCK; - return ccc_io_one_lock(env, io, enqflags, CLM_WRITE, + + return vvp_io_one_lock(env, io, enqflags, CLM_WRITE, new_size, OBD_OBJECT_EOF); } @@ -496,16 +495,15 @@ static int vvp_io_read_start(const struct lu_env *env, const struct cl_io_slice *ios) { struct vvp_io *vio = cl2vvp_io(env, ios); - struct ccc_io *cio = cl2ccc_io(env, ios); struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; struct inode *inode = vvp_object_inode(obj); - struct file *file = cio->cui_fd->fd_file; + struct file *file = vio->cui_fd->fd_file; int result; loff_t pos = io->u.ci_rd.rd.crw_pos; long cnt = io->u.ci_rd.rd.crw_count; - long tot = cio->cui_tot_count; + long tot = vio->cui_tot_count; int exceed = 0; CLOBINVRNT(env, obj, vvp_object_invariant(obj)); @@ -526,7 +524,7 @@ static int vvp_io_read_start(const struct lu_env *env, inode->i_ino, cnt, pos, i_size_read(inode)); /* turn off the kernel's read-ahead */ - cio->cui_fd->fd_file->f_ra.ra_pages = 0; + vio->cui_fd->fd_file->f_ra.ra_pages = 0; /* initialize read-ahead window once per syscall */ if (!vio->cui_ra_valid) { @@ -540,8 +538,8 @@ static int vvp_io_read_start(const struct lu_env *env, file_accessed(file); switch (vio->cui_io_subtype) { case IO_NORMAL: - LASSERT(cio->cui_iocb->ki_pos == pos); - result = generic_file_read_iter(cio->cui_iocb, cio->cui_iter); + LASSERT(vio->cui_iocb->ki_pos == pos); + result = generic_file_read_iter(vio->cui_iocb, vio->cui_iter); break; case IO_SPLICE: result = generic_file_splice_read(file, &pos, @@ -564,7 +562,7 @@ out: io->ci_continue = 0; io->ci_nob += result; ll_rw_stats_tally(ll_i2sbi(inode), current->pid, - cio->cui_fd, pos, result, READ); + vio->cui_fd, pos, result, READ); result = 0; } return result; @@ -676,7 +674,7 @@ int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) { struct cl_object *obj = io->ci_obj; struct inode *inode = vvp_object_inode(obj); - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); struct cl_page_list *queue = &cio->u.write.cui_queue; struct cl_page *page; int rc = 0; @@ -755,7 +753,7 @@ int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) static int vvp_io_write_start(const struct lu_env *env, const struct cl_io_slice *ios) { - struct ccc_io *cio = cl2ccc_io(env, ios); + struct vvp_io *cio = cl2vvp_io(env, ios); struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; struct inode *inode = vvp_object_inode(obj); @@ -813,10 +811,10 @@ static int vvp_io_write_start(const struct lu_env *env, static int vvp_io_kernel_fault(struct vvp_fault_io *cfio) { - struct vm_fault *vmf = cfio->fault.ft_vmf; + struct vm_fault *vmf = cfio->ft_vmf; - cfio->fault.ft_flags = filemap_fault(cfio->ft_vma, vmf); - cfio->fault.ft_flags_valid = 1; + cfio->ft_flags = filemap_fault(cfio->ft_vma, vmf); + cfio->ft_flags_valid = 1; if (vmf->page) { CDEBUG(D_PAGE, @@ -824,29 +822,29 @@ static int vvp_io_kernel_fault(struct vvp_fault_io *cfio) vmf->page, vmf->page->mapping, vmf->page->index, (long)vmf->page->flags, page_count(vmf->page), page_private(vmf->page), vmf->virtual_address); - if (unlikely(!(cfio->fault.ft_flags & VM_FAULT_LOCKED))) { + if (unlikely(!(cfio->ft_flags & VM_FAULT_LOCKED))) { lock_page(vmf->page); - cfio->fault.ft_flags |= VM_FAULT_LOCKED; + cfio->ft_flags |= VM_FAULT_LOCKED; } cfio->ft_vmpage = vmf->page; return 0; } - if (cfio->fault.ft_flags & (VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV)) { + if (cfio->ft_flags & (VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV)) { CDEBUG(D_PAGE, "got addr %p - SIGBUS\n", vmf->virtual_address); return -EFAULT; } - if (cfio->fault.ft_flags & VM_FAULT_OOM) { + if (cfio->ft_flags & VM_FAULT_OOM) { CDEBUG(D_PAGE, "got addr %p - OOM\n", vmf->virtual_address); return -ENOMEM; } - if (cfio->fault.ft_flags & VM_FAULT_RETRY) + if (cfio->ft_flags & VM_FAULT_RETRY) return -EAGAIN; - CERROR("Unknown error in page fault %d!\n", cfio->fault.ft_flags); + CERROR("Unknown error in page fault %d!\n", cfio->ft_flags); return -EINVAL; } @@ -1024,7 +1022,9 @@ out: /* return unlocked vmpage to avoid deadlocking */ if (vmpage) unlock_page(vmpage); - cfio->fault.ft_flags &= ~VM_FAULT_LOCKED; + + cfio->ft_flags &= ~VM_FAULT_LOCKED; + return result; } @@ -1047,7 +1047,7 @@ static int vvp_io_read_page(const struct lu_env *env, struct cl_page *page = slice->cpl_page; struct inode *inode = vvp_object_inode(slice->cpl_obj); struct ll_sb_info *sbi = ll_i2sbi(inode); - struct ll_file_data *fd = cl2ccc_io(env, ios)->cui_fd; + struct ll_file_data *fd = cl2vvp_io(env, ios)->cui_fd; struct ll_readahead_state *ras = &fd->fd_ras; struct cl_2queue *queue = &io->ci_queue; @@ -1080,7 +1080,7 @@ static const struct cl_io_operations vvp_io_ops = { .cio_fini = vvp_io_fini, .cio_lock = vvp_io_read_lock, .cio_start = vvp_io_read_start, - .cio_advance = ccc_io_advance, + .cio_advance = vvp_io_advance, }, [CIT_WRITE] = { .cio_fini = vvp_io_fini, @@ -1088,7 +1088,7 @@ static const struct cl_io_operations vvp_io_ops = { .cio_iter_fini = vvp_io_write_iter_fini, .cio_lock = vvp_io_write_lock, .cio_start = vvp_io_write_start, - .cio_advance = ccc_io_advance + .cio_advance = vvp_io_advance, }, [CIT_SETATTR] = { .cio_fini = vvp_io_setattr_fini, @@ -1102,7 +1102,7 @@ static const struct cl_io_operations vvp_io_ops = { .cio_iter_init = vvp_io_fault_iter_init, .cio_lock = vvp_io_fault_lock, .cio_start = vvp_io_fault_start, - .cio_end = ccc_io_end + .cio_end = vvp_io_end, }, [CIT_FSYNC] = { .cio_start = vvp_io_fsync_start, @@ -1119,7 +1119,6 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, struct cl_io *io) { struct vvp_io *vio = vvp_env_io(env); - struct ccc_io *cio = ccc_env_io(env); struct inode *inode = vvp_object_inode(obj); int result; @@ -1129,10 +1128,10 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, " ignore/verify layout %d/%d, layout version %d restore needed %d\n", PFID(lu_object_fid(&obj->co_lu)), io->ci_ignore_layout, io->ci_verify_layout, - cio->cui_layout_gen, io->ci_restore_needed); + vio->cui_layout_gen, io->ci_restore_needed); - CL_IO_SLICE_CLEAN(cio, cui_cl); - cl_io_slice_add(io, &cio->cui_cl, obj, &vvp_io_ops); + CL_IO_SLICE_CLEAN(vio, cui_cl); + cl_io_slice_add(io, &vio->cui_cl, obj, &vvp_io_ops); vio->cui_ra_valid = false; result = 0; if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE) { @@ -1146,7 +1145,7 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, if (count == 0) result = 1; else - cio->cui_tot_count = count; + vio->cui_tot_count = count; /* for read/write, we store the jobid in the inode, and * it'll be fetched by osc when building RPC. @@ -1172,7 +1171,7 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, * because it might not grant layout lock in IT_OPEN. */ if (result == 0 && !io->ci_ignore_layout) { - result = ll_layout_refresh(inode, &cio->cui_layout_gen); + result = ll_layout_refresh(inode, &vio->cui_layout_gen); if (result == -ENOENT) /* If the inode on MDS has been removed, but the objects * on OSTs haven't been destroyed (async unlink), layout @@ -1188,11 +1187,3 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, return result; } - -static struct vvp_io *cl2vvp_io(const struct lu_env *env, - const struct cl_io_slice *slice) -{ - /* Calling just for assertion */ - cl2ccc_io(env, slice); - return vvp_env_io(env); -} diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c index 5ebbe27..4f7dfe2 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_page.c +++ b/drivers/staging/lustre/lustre/llite/vvp_page.c @@ -372,7 +372,7 @@ static int vvp_page_is_under_lock(const struct lu_env *env, { if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE || io->ci_type == CIT_FAULT) { - struct ccc_io *cio = ccc_env_io(env); + struct vvp_io *cio = vvp_env_io(env); if (unlikely(cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) *max_index = CL_PAGE_EOF; -- cgit v0.10.2 From e0a8144b8c32031d37ff849fc07e6c5646e61198 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:52 -0400 Subject: staging/lustre/llite: use vui prefix for struct vvp_io members Rename members of struct vvp_io to used to start with vui_ rather than cui_. Rename several instances of struct vvp_io * from cio to vio. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/13363 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Bobi Jam Reviewed-by: Lai Siyao Reviewed-by: Jinshan Xiong Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 27e7e65..63aa080 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -1135,18 +1135,18 @@ restart: ll_io_init(io, file, iot == CIT_WRITE); if (cl_io_rw_init(env, io, iot, *ppos, count) == 0) { - struct vvp_io *cio = vvp_env_io(env); + struct vvp_io *vio = vvp_env_io(env); int write_mutex_locked = 0; - cio->cui_fd = LUSTRE_FPRIVATE(file); - cio->cui_io_subtype = args->via_io_subtype; + vio->vui_fd = LUSTRE_FPRIVATE(file); + vio->vui_io_subtype = args->via_io_subtype; - switch (cio->cui_io_subtype) { + switch (vio->vui_io_subtype) { case IO_NORMAL: - cio->cui_iter = args->u.normal.via_iter; - cio->cui_iocb = args->u.normal.via_iocb; + vio->vui_iter = args->u.normal.via_iter; + vio->vui_iocb = args->u.normal.via_iocb; if ((iot == CIT_WRITE) && - !(cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { + !(vio->vui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { if (mutex_lock_interruptible(&lli-> lli_write_mutex)) { result = -ERESTARTSYS; @@ -1157,11 +1157,11 @@ restart: down_read(&lli->lli_trunc_sem); break; case IO_SPLICE: - cio->u.splice.cui_pipe = args->u.splice.via_pipe; - cio->u.splice.cui_flags = args->u.splice.via_flags; + vio->u.splice.vui_pipe = args->u.splice.via_pipe; + vio->u.splice.vui_flags = args->u.splice.via_flags; break; default: - CERROR("Unknown IO type - %u\n", cio->cui_io_subtype); + CERROR("Unknown IO type - %u\n", vio->vui_io_subtype); LBUG(); } result = cl_io_loop(env, io); diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 9a9d706..630c371 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -210,19 +210,19 @@ int vvp_io_one_lock_index(const struct lu_env *env, struct cl_io *io, __u32 enqflags, enum cl_lock_mode mode, pgoff_t start, pgoff_t end) { - struct vvp_io *cio = vvp_env_io(env); - struct cl_lock_descr *descr = &cio->cui_link.cill_descr; + struct vvp_io *vio = vvp_env_io(env); + struct cl_lock_descr *descr = &vio->vui_link.cill_descr; struct cl_object *obj = io->ci_obj; CLOBINVRNT(env, obj, vvp_object_invariant(obj)); CDEBUG(D_VFSTRACE, "lock: %d [%lu, %lu]\n", mode, start, end); - memset(&cio->cui_link, 0, sizeof(cio->cui_link)); + memset(&vio->vui_link, 0, sizeof(vio->vui_link)); - if (cio->cui_fd && (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { + if (vio->vui_fd && (vio->vui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { descr->cld_mode = CLM_GROUP; - descr->cld_gid = cio->cui_fd->fd_grouplock.cg_gid; + descr->cld_gid = vio->vui_fd->fd_grouplock.cg_gid; } else { descr->cld_mode = mode; } @@ -231,19 +231,19 @@ int vvp_io_one_lock_index(const struct lu_env *env, struct cl_io *io, descr->cld_end = end; descr->cld_enq_flags = enqflags; - cl_io_lock_add(env, io, &cio->cui_link); + cl_io_lock_add(env, io, &vio->vui_link); return 0; } void vvp_io_update_iov(const struct lu_env *env, - struct vvp_io *cio, struct cl_io *io) + struct vvp_io *vio, struct cl_io *io) { size_t size = io->u.ci_rw.crw_count; - if (!cl_is_normalio(env, io) || !cio->cui_iter) + if (!cl_is_normalio(env, io) || !vio->vui_iter) return; - iov_iter_truncate(cio->cui_iter, size); + iov_iter_truncate(vio->vui_iter, size); } int vvp_io_one_lock(const struct lu_env *env, struct cl_io *io, @@ -266,7 +266,7 @@ void vvp_io_advance(const struct lu_env *env, const struct cl_io_slice *ios, size_t nob) { - struct vvp_io *cio = cl2vvp_io(env, ios); + struct vvp_io *vio = cl2vvp_io(env, ios); struct cl_io *io = ios->cis_io; struct cl_object *obj = ios->cis_io->ci_obj; @@ -275,7 +275,7 @@ void vvp_io_advance(const struct lu_env *env, if (!cl_is_normalio(env, io)) return; - iov_iter_reexpand(cio->cui_iter, cio->cui_tot_count -= nob); + iov_iter_reexpand(vio->vui_iter, vio->vui_tot_count -= nob); } /** @@ -461,13 +461,13 @@ int cl_setattr_ost(struct inode *inode, const struct iattr *attr) again: if (cl_io_init(env, io, CIT_SETATTR, io->ci_obj) == 0) { - struct vvp_io *cio = vvp_env_io(env); + struct vvp_io *vio = vvp_env_io(env); if (attr->ia_valid & ATTR_FILE) /* populate the file descriptor for ftruncate to honor * group lock - see LU-787 */ - cio->cui_fd = LUSTRE_FPRIVATE(attr->ia_file); + vio->vui_fd = LUSTRE_FPRIVATE(attr->ia_file); result = cl_io_loop(env, io); } else { @@ -496,12 +496,12 @@ again: struct vvp_io *cl2vvp_io(const struct lu_env *env, const struct cl_io_slice *slice) { - struct vvp_io *cio; + struct vvp_io *vio; - cio = container_of(slice, struct vvp_io, cui_cl); - LASSERT(cio == vvp_env_io(env)); + vio = container_of(slice, struct vvp_io, vui_cl); + LASSERT(vio == vvp_env_io(env)); - return cio; + return vio; } struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice) diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c index 7c214f8..a7693c5 100644 --- a/drivers/staging/lustre/lustre/llite/llite_mmap.c +++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c @@ -146,14 +146,14 @@ ll_fault_io_init(struct vm_area_struct *vma, struct lu_env **env_ret, rc = cl_io_init(env, io, CIT_FAULT, io->ci_obj); if (rc == 0) { - struct vvp_io *cio = vvp_env_io(env); + struct vvp_io *vio = vvp_env_io(env); struct ll_file_data *fd = LUSTRE_FPRIVATE(file); - LASSERT(cio->cui_cl.cis_io == io); + LASSERT(vio->vui_cl.cis_io == io); /* mmap lock must be MANDATORY it has to cache pages. */ io->ci_lockreq = CILR_MANDATORY; - cio->cui_fd = fd; + vio->vui_fd = fd; } else { LASSERT(rc < 0); cl_io_fini(env, io); diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index da44107..634f0bb 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -90,7 +90,7 @@ struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage) struct lu_env *env; struct cl_io *io; struct cl_object *clob; - struct vvp_io *cio; + struct vvp_io *vio; int refcheck; int result = 0; @@ -108,8 +108,8 @@ struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage) lcc->lcc_refcheck = refcheck; lcc->lcc_cookie = current; - cio = vvp_env_io(env); - io = cio->cui_cl.cis_io; + vio = vvp_env_io(env); + io = vio->vui_cl.cis_io; lcc->lcc_io = io; if (!io) { struct inode *inode = file_inode(file); @@ -125,7 +125,7 @@ struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage) struct cl_page *page; LASSERT(io->ci_state == CIS_IO_GOING); - LASSERT(cio->cui_fd == LUSTRE_FPRIVATE(file)); + LASSERT(vio->vui_fd == LUSTRE_FPRIVATE(file)); page = cl_page_find(env, clob, vmpage->index, vmpage, CPT_CACHEABLE); if (!IS_ERR(page)) { @@ -553,10 +553,10 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, spin_lock(&ras->ras_lock); /* Enlarge the RA window to encompass the full read */ - if (vio->cui_ra_valid && + if (vio->vui_ra_valid && ras->ras_window_start + ras->ras_window_len < - vio->cui_ra_start + vio->cui_ra_count) { - ras->ras_window_len = vio->cui_ra_start + vio->cui_ra_count - + vio->vui_ra_start + vio->vui_ra_count) { + ras->ras_window_len = vio->vui_ra_start + vio->vui_ra_count - ras->ras_window_start; } @@ -615,15 +615,15 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, CDEBUG(D_READA, DFID ": ria: %lu/%lu, bead: %lu/%lu, hit: %d\n", PFID(lu_object_fid(&clob->co_lu)), ria->ria_start, ria->ria_end, - vio->cui_ra_valid ? vio->cui_ra_start : 0, - vio->cui_ra_valid ? vio->cui_ra_count : 0, + vio->vui_ra_valid ? vio->vui_ra_start : 0, + vio->vui_ra_valid ? vio->vui_ra_count : 0, hit); /* at least to extend the readahead window to cover current read */ - if (!hit && vio->cui_ra_valid && - vio->cui_ra_start + vio->cui_ra_count > ria->ria_start) { + if (!hit && vio->vui_ra_valid && + vio->vui_ra_start + vio->vui_ra_count > ria->ria_start) { /* to the end of current read window. */ - mlen = vio->cui_ra_start + vio->cui_ra_count - ria->ria_start; + mlen = vio->vui_ra_start + vio->vui_ra_count - ria->ria_start; /* trim to RPC boundary */ start = ria->ria_start & (PTLRPC_MAX_BRW_PAGES - 1); mlen = min(mlen, PTLRPC_MAX_BRW_PAGES - start); diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index 2f69634..106473e 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -376,7 +376,7 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter, env = cl_env_get(&refcheck); LASSERT(!IS_ERR(env)); - io = vvp_env_io(env)->cui_cl.cis_io; + io = vvp_env_io(env)->vui_cl.cis_io; LASSERT(io); /* 0. Need locking between buffered and direct access. and race with @@ -439,10 +439,10 @@ out: inode_unlock(inode); if (tot_bytes > 0) { - struct vvp_io *cio = vvp_env_io(env); + struct vvp_io *vio = vvp_env_io(env); /* no commit async for direct IO */ - cio->u.write.cui_written += tot_bytes; + vio->u.write.vui_written += tot_bytes; } cl_env_put(env, &refcheck); @@ -513,8 +513,8 @@ static int ll_write_begin(struct file *file, struct address_space *mapping, /* To avoid deadlock, try to lock page first. */ vmpage = grab_cache_page_nowait(mapping, index); if (unlikely(!vmpage || PageDirty(vmpage) || PageWriteback(vmpage))) { - struct vvp_io *cio = vvp_env_io(env); - struct cl_page_list *plist = &cio->u.write.cui_queue; + struct vvp_io *vio = vvp_env_io(env); + struct cl_page_list *plist = &vio->u.write.vui_queue; /* if the page is already in dirty cache, we have to commit * the pages right now; otherwise, it may cause deadlock @@ -595,7 +595,7 @@ static int ll_write_end(struct file *file, struct address_space *mapping, struct ll_cl_context *lcc = fsdata; struct lu_env *env; struct cl_io *io; - struct vvp_io *cio; + struct vvp_io *vio; struct cl_page *page; unsigned from = pos & (PAGE_CACHE_SIZE - 1); bool unplug = false; @@ -606,21 +606,21 @@ static int ll_write_end(struct file *file, struct address_space *mapping, env = lcc->lcc_env; page = lcc->lcc_page; io = lcc->lcc_io; - cio = vvp_env_io(env); + vio = vvp_env_io(env); LASSERT(cl_page_is_owned(page, io)); if (copied > 0) { - struct cl_page_list *plist = &cio->u.write.cui_queue; + struct cl_page_list *plist = &vio->u.write.vui_queue; lcc->lcc_page = NULL; /* page will be queued */ /* Add it into write queue */ cl_page_list_add(plist, page); if (plist->pl_nr == 1) /* first page */ - cio->u.write.cui_from = from; + vio->u.write.vui_from = from; else LASSERT(from == 0); - cio->u.write.cui_to = from + copied; + vio->u.write.vui_to = from + copied; /* We may have one full RPC, commit it soon */ if (plist->pl_nr >= PTLRPC_MAX_BRW_PAGES) diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 443485c..e04f23e 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -94,16 +94,16 @@ enum vvp_io_subtype { */ struct vvp_io { /** super class */ - struct cl_io_slice cui_cl; - struct cl_io_lock_link cui_link; + struct cl_io_slice vui_cl; + struct cl_io_lock_link vui_link; /** * I/O vector information to or from which read/write is going. */ - struct iov_iter *cui_iter; + struct iov_iter *vui_iter; /** * Total size for the left IO. */ - size_t cui_tot_count; + size_t vui_tot_count; union { struct vvp_fault_io { @@ -131,37 +131,37 @@ struct vvp_io { bool ft_flags_valid; } fault; struct { - enum ccc_setattr_lock_type cui_local_lock; + enum ccc_setattr_lock_type vui_local_lock; } setattr; struct { - struct pipe_inode_info *cui_pipe; - unsigned int cui_flags; + struct pipe_inode_info *vui_pipe; + unsigned int vui_flags; } splice; struct { - struct cl_page_list cui_queue; - unsigned long cui_written; - int cui_from; - int cui_to; + struct cl_page_list vui_queue; + unsigned long vui_written; + int vui_from; + int vui_to; } write; } u; - enum vvp_io_subtype cui_io_subtype; + enum vvp_io_subtype vui_io_subtype; /** * Layout version when this IO is initialized */ - __u32 cui_layout_gen; + __u32 vui_layout_gen; /** * File descriptor against which IO is done. */ - struct ll_file_data *cui_fd; - struct kiocb *cui_iocb; + struct ll_file_data *vui_fd; + struct kiocb *vui_iocb; /* Readahead state. */ - pgoff_t cui_ra_start; - pgoff_t cui_ra_count; - /* Set when cui_ra_{start,count} have been initialized. */ - bool cui_ra_valid; + pgoff_t vui_ra_start; + pgoff_t vui_ra_count; + /* Set when vui_ra_{start,count} have been initialized. */ + bool vui_ra_valid; }; /** diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 1059c63..53cf2be 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -56,7 +56,7 @@ int cl_is_normalio(const struct lu_env *env, const struct cl_io *io) LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE); - return vio->cui_io_subtype == IO_NORMAL; + return vio->vui_io_subtype == IO_NORMAL; } /** @@ -69,7 +69,7 @@ static bool can_populate_pages(const struct lu_env *env, struct cl_io *io, struct inode *inode) { struct ll_inode_info *lli = ll_i2info(inode); - struct vvp_io *cio = vvp_env_io(env); + struct vvp_io *vio = vvp_env_io(env); bool rc = true; switch (io->ci_type) { @@ -78,7 +78,7 @@ static bool can_populate_pages(const struct lu_env *env, struct cl_io *io, /* don't need lock here to check lli_layout_gen as we have held * extent lock and GROUP lock has to hold to swap layout */ - if (ll_layout_version_get(lli) != cio->cui_layout_gen) { + if (ll_layout_version_get(lli) != vio->vui_layout_gen) { io->ci_need_restart = 1; /* this will return application a short read/write */ io->ci_continue = 0; @@ -102,12 +102,12 @@ static bool can_populate_pages(const struct lu_env *env, struct cl_io *io, static int vvp_io_write_iter_init(const struct lu_env *env, const struct cl_io_slice *ios) { - struct vvp_io *cio = cl2vvp_io(env, ios); + struct vvp_io *vio = cl2vvp_io(env, ios); - cl_page_list_init(&cio->u.write.cui_queue); - cio->u.write.cui_written = 0; - cio->u.write.cui_from = 0; - cio->u.write.cui_to = PAGE_SIZE; + cl_page_list_init(&vio->u.write.vui_queue); + vio->u.write.vui_written = 0; + vio->u.write.vui_from = 0; + vio->u.write.vui_to = PAGE_SIZE; return 0; } @@ -115,9 +115,9 @@ static int vvp_io_write_iter_init(const struct lu_env *env, static void vvp_io_write_iter_fini(const struct lu_env *env, const struct cl_io_slice *ios) { - struct vvp_io *cio = cl2vvp_io(env, ios); + struct vvp_io *vio = cl2vvp_io(env, ios); - LASSERT(cio->u.write.cui_queue.pl_nr == 0); + LASSERT(vio->u.write.vui_queue.pl_nr == 0); } static int vvp_io_fault_iter_init(const struct lu_env *env, @@ -126,7 +126,7 @@ static int vvp_io_fault_iter_init(const struct lu_env *env, struct vvp_io *vio = cl2vvp_io(env, ios); struct inode *inode = vvp_object_inode(ios->cis_obj); - LASSERT(inode == file_inode(vio->cui_fd->fd_file)); + LASSERT(inode == file_inode(vio->vui_fd->fd_file)); vio->u.fault.ft_mtime = inode->i_mtime.tv_sec; return 0; } @@ -135,7 +135,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) { struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; - struct vvp_io *cio = cl2vvp_io(env, ios); + struct vvp_io *vio = cl2vvp_io(env, ios); CLOBINVRNT(env, obj, vvp_object_invariant(obj)); @@ -143,7 +143,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) " ignore/verify layout %d/%d, layout version %d restore needed %d\n", PFID(lu_object_fid(&obj->co_lu)), io->ci_ignore_layout, io->ci_verify_layout, - cio->cui_layout_gen, io->ci_restore_needed); + vio->vui_layout_gen, io->ci_restore_needed); if (io->ci_restore_needed == 1) { int rc; @@ -178,12 +178,12 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) /* check layout version */ ll_layout_refresh(vvp_object_inode(obj), &gen); - io->ci_need_restart = cio->cui_layout_gen != gen; + io->ci_need_restart = vio->vui_layout_gen != gen; if (io->ci_need_restart) { CDEBUG(D_VFSTRACE, DFID" layout changed from %d to %d.\n", PFID(lu_object_fid(&obj->co_lu)), - cio->cui_layout_gen, gen); + vio->vui_layout_gen, gen); /* today successful restore is the only possible case */ /* restore was done, clear restoring state */ ll_i2info(vvp_object_inode(obj))->lli_flags &= @@ -239,14 +239,14 @@ static int vvp_mmap_locks(const struct lu_env *env, if (!cl_is_normalio(env, io)) return 0; - if (!vio->cui_iter) /* nfs or loop back device write */ + if (!vio->vui_iter) /* nfs or loop back device write */ return 0; /* No MM (e.g. NFS)? No vmas too. */ if (!mm) return 0; - iov_for_each(iov, i, *(vio->cui_iter)) { + iov_for_each(iov, i, *vio->vui_iter) { addr = (unsigned long)iov.iov_base; count = iov.iov_len; if (count == 0) @@ -306,17 +306,17 @@ static int vvp_mmap_locks(const struct lu_env *env, static int vvp_io_rw_lock(const struct lu_env *env, struct cl_io *io, enum cl_lock_mode mode, loff_t start, loff_t end) { - struct vvp_io *cio = vvp_env_io(env); + struct vvp_io *vio = vvp_env_io(env); int result; int ast_flags = 0; LASSERT(io->ci_type == CIT_READ || io->ci_type == CIT_WRITE); - vvp_io_update_iov(env, cio, io); + vvp_io_update_iov(env, vio, io); if (io->u.ci_rw.crw_nonblock) ast_flags |= CEF_NONBLOCK; - result = vvp_mmap_locks(env, cio, io); + result = vvp_mmap_locks(env, vio, io); if (result == 0) result = vvp_io_one_lock(env, io, ast_flags, mode, start, end); return result; @@ -374,14 +374,14 @@ static int vvp_io_setattr_iter_init(const struct lu_env *env, } /** - * Implementation of cl_io_operations::cio_lock() method for CIT_SETATTR io. + * Implementation of cl_io_operations::vio_lock() method for CIT_SETATTR io. * * Handles "lockless io" mode when extent locking is done by server. */ static int vvp_io_setattr_lock(const struct lu_env *env, const struct cl_io_slice *ios) { - struct vvp_io *cio = vvp_env_io(env); + struct vvp_io *vio = vvp_env_io(env); struct cl_io *io = ios->cis_io; __u64 new_size; __u32 enqflags = 0; @@ -398,7 +398,8 @@ static int vvp_io_setattr_lock(const struct lu_env *env, return 0; new_size = 0; } - cio->u.setattr.cui_local_lock = SETATTR_EXTENT_LOCK; + + vio->u.setattr.vui_local_lock = SETATTR_EXTENT_LOCK; return vvp_io_one_lock(env, io, enqflags, CLM_WRITE, new_size, OBD_OBJECT_EOF); @@ -498,12 +499,12 @@ static int vvp_io_read_start(const struct lu_env *env, struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; struct inode *inode = vvp_object_inode(obj); - struct file *file = vio->cui_fd->fd_file; + struct file *file = vio->vui_fd->fd_file; int result; loff_t pos = io->u.ci_rd.rd.crw_pos; long cnt = io->u.ci_rd.rd.crw_count; - long tot = vio->cui_tot_count; + long tot = vio->vui_tot_count; int exceed = 0; CLOBINVRNT(env, obj, vvp_object_invariant(obj)); @@ -524,27 +525,27 @@ static int vvp_io_read_start(const struct lu_env *env, inode->i_ino, cnt, pos, i_size_read(inode)); /* turn off the kernel's read-ahead */ - vio->cui_fd->fd_file->f_ra.ra_pages = 0; + vio->vui_fd->fd_file->f_ra.ra_pages = 0; /* initialize read-ahead window once per syscall */ - if (!vio->cui_ra_valid) { - vio->cui_ra_valid = true; - vio->cui_ra_start = cl_index(obj, pos); - vio->cui_ra_count = cl_index(obj, tot + PAGE_CACHE_SIZE - 1); + if (!vio->vui_ra_valid) { + vio->vui_ra_valid = true; + vio->vui_ra_start = cl_index(obj, pos); + vio->vui_ra_count = cl_index(obj, tot + PAGE_CACHE_SIZE - 1); ll_ras_enter(file); } /* BUG: 5972 */ file_accessed(file); - switch (vio->cui_io_subtype) { + switch (vio->vui_io_subtype) { case IO_NORMAL: - LASSERT(vio->cui_iocb->ki_pos == pos); - result = generic_file_read_iter(vio->cui_iocb, vio->cui_iter); + LASSERT(vio->vui_iocb->ki_pos == pos); + result = generic_file_read_iter(vio->vui_iocb, vio->vui_iter); break; case IO_SPLICE: result = generic_file_splice_read(file, &pos, - vio->u.splice.cui_pipe, cnt, - vio->u.splice.cui_flags); + vio->u.splice.vui_pipe, cnt, + vio->u.splice.vui_flags); /* LU-1109: do splice read stripe by stripe otherwise if it * may make nfsd stuck if this read occupied all internal pipe * buffers. @@ -552,7 +553,7 @@ static int vvp_io_read_start(const struct lu_env *env, io->ci_continue = 0; break; default: - CERROR("Wrong IO type %u\n", vio->cui_io_subtype); + CERROR("Wrong IO type %u\n", vio->vui_io_subtype); LBUG(); } @@ -562,7 +563,7 @@ out: io->ci_continue = 0; io->ci_nob += result; ll_rw_stats_tally(ll_i2sbi(inode), current->pid, - vio->cui_fd, pos, result, READ); + vio->vui_fd, pos, result, READ); result = 0; } return result; @@ -674,24 +675,24 @@ int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) { struct cl_object *obj = io->ci_obj; struct inode *inode = vvp_object_inode(obj); - struct vvp_io *cio = vvp_env_io(env); - struct cl_page_list *queue = &cio->u.write.cui_queue; + struct vvp_io *vio = vvp_env_io(env); + struct cl_page_list *queue = &vio->u.write.vui_queue; struct cl_page *page; int rc = 0; int bytes = 0; - unsigned int npages = cio->u.write.cui_queue.pl_nr; + unsigned int npages = vio->u.write.vui_queue.pl_nr; if (npages == 0) return 0; CDEBUG(D_VFSTRACE, "commit async pages: %d, from %d, to %d\n", - npages, cio->u.write.cui_from, cio->u.write.cui_to); + npages, vio->u.write.vui_from, vio->u.write.vui_to); LASSERT(page_list_sanity_check(obj, queue)); /* submit IO with async write */ rc = cl_io_commit_async(env, io, queue, - cio->u.write.cui_from, cio->u.write.cui_to, + vio->u.write.vui_from, vio->u.write.vui_to, write_commit_callback); npages -= queue->pl_nr; /* already committed pages */ if (npages > 0) { @@ -699,18 +700,18 @@ int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) bytes = npages << PAGE_SHIFT; /* first page */ - bytes -= cio->u.write.cui_from; + bytes -= vio->u.write.vui_from; if (queue->pl_nr == 0) /* last page */ - bytes -= PAGE_SIZE - cio->u.write.cui_to; + bytes -= PAGE_SIZE - vio->u.write.vui_to; LASSERTF(bytes > 0, "bytes = %d, pages = %d\n", bytes, npages); - cio->u.write.cui_written += bytes; + vio->u.write.vui_written += bytes; CDEBUG(D_VFSTRACE, "Committed %d pages %d bytes, tot: %ld\n", - npages, bytes, cio->u.write.cui_written); + npages, bytes, vio->u.write.vui_written); /* the first page must have been written. */ - cio->u.write.cui_from = 0; + vio->u.write.vui_from = 0; } LASSERT(page_list_sanity_check(obj, queue)); LASSERT(ergo(rc == 0, queue->pl_nr == 0)); @@ -718,10 +719,10 @@ int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) /* out of quota, try sync write */ if (rc == -EDQUOT && !cl_io_is_mkwrite(io)) { rc = vvp_io_commit_sync(env, io, queue, - cio->u.write.cui_from, - cio->u.write.cui_to); + vio->u.write.vui_from, + vio->u.write.vui_to); if (rc > 0) { - cio->u.write.cui_written += rc; + vio->u.write.vui_written += rc; rc = 0; } } @@ -753,7 +754,7 @@ int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io) static int vvp_io_write_start(const struct lu_env *env, const struct cl_io_slice *ios) { - struct vvp_io *cio = cl2vvp_io(env, ios); + struct vvp_io *vio = cl2vvp_io(env, ios); struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; struct inode *inode = vvp_object_inode(obj); @@ -771,22 +772,22 @@ static int vvp_io_write_start(const struct lu_env *env, */ ll_merge_attr(env, inode); pos = io->u.ci_wr.wr.crw_pos = i_size_read(inode); - cio->cui_iocb->ki_pos = pos; + vio->vui_iocb->ki_pos = pos; } else { - LASSERT(cio->cui_iocb->ki_pos == pos); + LASSERT(vio->vui_iocb->ki_pos == pos); } CDEBUG(D_VFSTRACE, "write: [%lli, %lli)\n", pos, pos + (long long)cnt); - if (!cio->cui_iter) /* from a temp io in ll_cl_init(). */ + if (!vio->vui_iter) /* from a temp io in ll_cl_init(). */ result = 0; else - result = generic_file_write_iter(cio->cui_iocb, cio->cui_iter); + result = generic_file_write_iter(vio->vui_iocb, vio->vui_iter); if (result > 0) { result = vvp_io_write_commit(env, io); - if (cio->u.write.cui_written > 0) { - result = cio->u.write.cui_written; + if (vio->u.write.vui_written > 0) { + result = vio->u.write.vui_written; io->ci_nob += result; CDEBUG(D_VFSTRACE, "write: nob %zd, result: %zd\n", @@ -803,7 +804,7 @@ static int vvp_io_write_start(const struct lu_env *env, if (result < cnt) io->ci_continue = 0; ll_rw_stats_tally(ll_i2sbi(inode), current->pid, - cio->cui_fd, pos, result, WRITE); + vio->vui_fd, pos, result, WRITE); result = 0; } return result; @@ -1047,7 +1048,7 @@ static int vvp_io_read_page(const struct lu_env *env, struct cl_page *page = slice->cpl_page; struct inode *inode = vvp_object_inode(slice->cpl_obj); struct ll_sb_info *sbi = ll_i2sbi(inode); - struct ll_file_data *fd = cl2vvp_io(env, ios)->cui_fd; + struct ll_file_data *fd = cl2vvp_io(env, ios)->vui_fd; struct ll_readahead_state *ras = &fd->fd_ras; struct cl_2queue *queue = &io->ci_queue; @@ -1128,11 +1129,11 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, " ignore/verify layout %d/%d, layout version %d restore needed %d\n", PFID(lu_object_fid(&obj->co_lu)), io->ci_ignore_layout, io->ci_verify_layout, - vio->cui_layout_gen, io->ci_restore_needed); + vio->vui_layout_gen, io->ci_restore_needed); - CL_IO_SLICE_CLEAN(vio, cui_cl); - cl_io_slice_add(io, &vio->cui_cl, obj, &vvp_io_ops); - vio->cui_ra_valid = false; + CL_IO_SLICE_CLEAN(vio, vui_cl); + cl_io_slice_add(io, &vio->vui_cl, obj, &vvp_io_ops); + vio->vui_ra_valid = false; result = 0; if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE) { size_t count; @@ -1145,7 +1146,7 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, if (count == 0) result = 1; else - vio->cui_tot_count = count; + vio->vui_tot_count = count; /* for read/write, we store the jobid in the inode, and * it'll be fetched by osc when building RPC. @@ -1171,7 +1172,7 @@ int vvp_io_init(const struct lu_env *env, struct cl_object *obj, * because it might not grant layout lock in IT_OPEN. */ if (result == 0 && !io->ci_ignore_layout) { - result = ll_layout_refresh(inode, &vio->cui_layout_gen); + result = ll_layout_refresh(inode, &vio->vui_layout_gen); if (result == -ENOENT) /* If the inode on MDS has been removed, but the objects * on OSTs haven't been destroyed (async unlink), layout diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c index 4f7dfe2..69316c1 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_page.c +++ b/drivers/staging/lustre/lustre/llite/vvp_page.c @@ -372,9 +372,9 @@ static int vvp_page_is_under_lock(const struct lu_env *env, { if (io->ci_type == CIT_READ || io->ci_type == CIT_WRITE || io->ci_type == CIT_FAULT) { - struct vvp_io *cio = vvp_env_io(env); + struct vvp_io *vio = vvp_env_io(env); - if (unlikely(cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) + if (unlikely(vio->vui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) *max_index = CL_PAGE_EOF; } return 0; -- cgit v0.10.2 From fee6eb5052fc394c6f40316052033cd69ee4ebc5 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:53 -0400 Subject: staging/lustre/llite: move vvp_io functions to vvp_io.c Move all vvp_io related functions from lustre/llite/lcommon_cl.c to the sole file where they are used lustre/llite/vvp_io.c. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/13376 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Jinshan Xiong Reviewed-by: Bobi Jam Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 630c371..1b11103 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -184,192 +184,6 @@ void ccc_global_fini(struct lu_device_type *device_type) lu_kmem_fini(ccc_caches); } -static void vvp_object_size_lock(struct cl_object *obj) -{ - struct inode *inode = vvp_object_inode(obj); - - ll_inode_size_lock(inode); - cl_object_attr_lock(obj); -} - -static void vvp_object_size_unlock(struct cl_object *obj) -{ - struct inode *inode = vvp_object_inode(obj); - - cl_object_attr_unlock(obj); - ll_inode_size_unlock(inode); -} - -/***************************************************************************** - * - * io operations. - * - */ - -int vvp_io_one_lock_index(const struct lu_env *env, struct cl_io *io, - __u32 enqflags, enum cl_lock_mode mode, - pgoff_t start, pgoff_t end) -{ - struct vvp_io *vio = vvp_env_io(env); - struct cl_lock_descr *descr = &vio->vui_link.cill_descr; - struct cl_object *obj = io->ci_obj; - - CLOBINVRNT(env, obj, vvp_object_invariant(obj)); - - CDEBUG(D_VFSTRACE, "lock: %d [%lu, %lu]\n", mode, start, end); - - memset(&vio->vui_link, 0, sizeof(vio->vui_link)); - - if (vio->vui_fd && (vio->vui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { - descr->cld_mode = CLM_GROUP; - descr->cld_gid = vio->vui_fd->fd_grouplock.cg_gid; - } else { - descr->cld_mode = mode; - } - descr->cld_obj = obj; - descr->cld_start = start; - descr->cld_end = end; - descr->cld_enq_flags = enqflags; - - cl_io_lock_add(env, io, &vio->vui_link); - return 0; -} - -void vvp_io_update_iov(const struct lu_env *env, - struct vvp_io *vio, struct cl_io *io) -{ - size_t size = io->u.ci_rw.crw_count; - - if (!cl_is_normalio(env, io) || !vio->vui_iter) - return; - - iov_iter_truncate(vio->vui_iter, size); -} - -int vvp_io_one_lock(const struct lu_env *env, struct cl_io *io, - __u32 enqflags, enum cl_lock_mode mode, - loff_t start, loff_t end) -{ - struct cl_object *obj = io->ci_obj; - - return vvp_io_one_lock_index(env, io, enqflags, mode, - cl_index(obj, start), cl_index(obj, end)); -} - -void vvp_io_end(const struct lu_env *env, const struct cl_io_slice *ios) -{ - CLOBINVRNT(env, ios->cis_io->ci_obj, - vvp_object_invariant(ios->cis_io->ci_obj)); -} - -void vvp_io_advance(const struct lu_env *env, - const struct cl_io_slice *ios, - size_t nob) -{ - struct vvp_io *vio = cl2vvp_io(env, ios); - struct cl_io *io = ios->cis_io; - struct cl_object *obj = ios->cis_io->ci_obj; - - CLOBINVRNT(env, obj, vvp_object_invariant(obj)); - - if (!cl_is_normalio(env, io)) - return; - - iov_iter_reexpand(vio->vui_iter, vio->vui_tot_count -= nob); -} - -/** - * Helper function that if necessary adjusts file size (inode->i_size), when - * position at the offset \a pos is accessed. File size can be arbitrary stale - * on a Lustre client, but client at least knows KMS. If accessed area is - * inside [0, KMS], set file size to KMS, otherwise glimpse file size. - * - * Locking: cl_isize_lock is used to serialize changes to inode size and to - * protect consistency between inode size and cl_object - * attributes. cl_object_size_lock() protects consistency between cl_attr's of - * top-object and sub-objects. - */ -int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, - struct cl_io *io, loff_t start, size_t count, int *exceed) -{ - struct cl_attr *attr = ccc_env_thread_attr(env); - struct inode *inode = vvp_object_inode(obj); - loff_t pos = start + count - 1; - loff_t kms; - int result; - - /* - * Consistency guarantees: following possibilities exist for the - * relation between region being accessed and real file size at this - * moment: - * - * (A): the region is completely inside of the file; - * - * (B-x): x bytes of region are inside of the file, the rest is - * outside; - * - * (C): the region is completely outside of the file. - * - * This classification is stable under DLM lock already acquired by - * the caller, because to change the class, other client has to take - * DLM lock conflicting with our lock. Also, any updates to ->i_size - * by other threads on this client are serialized by - * ll_inode_size_lock(). This guarantees that short reads are handled - * correctly in the face of concurrent writes and truncates. - */ - vvp_object_size_lock(obj); - result = cl_object_attr_get(env, obj, attr); - if (result == 0) { - kms = attr->cat_kms; - if (pos > kms) { - /* - * A glimpse is necessary to determine whether we - * return a short read (B) or some zeroes at the end - * of the buffer (C) - */ - vvp_object_size_unlock(obj); - result = cl_glimpse_lock(env, io, inode, obj, 0); - if (result == 0 && exceed) { - /* If objective page index exceed end-of-file - * page index, return directly. Do not expect - * kernel will check such case correctly. - * linux-2.6.18-128.1.1 miss to do that. - * --bug 17336 - */ - loff_t size = i_size_read(inode); - loff_t cur_index = start >> PAGE_CACHE_SHIFT; - loff_t size_index = (size - 1) >> - PAGE_CACHE_SHIFT; - - if ((size == 0 && cur_index != 0) || - size_index < cur_index) - *exceed = 1; - } - return result; - } - /* - * region is within kms and, hence, within real file - * size (A). We need to increase i_size to cover the - * read region so that generic_file_read() will do its - * job, but that doesn't mean the kms size is - * _correct_, it is only the _minimum_ size. If - * someone does a stat they will get the correct size - * which will always be >= the kms value here. - * b=11081 - */ - if (i_size_read(inode) < kms) { - i_size_write(inode, kms); - CDEBUG(D_VFSTRACE, DFID " updating i_size %llu\n", - PFID(lu_object_fid(&obj->co_lu)), - (__u64)i_size_read(inode)); - } - } - - vvp_object_size_unlock(obj); - - return result; -} - /***************************************************************************** * * Transfer operations. @@ -493,17 +307,6 @@ again: * */ -struct vvp_io *cl2vvp_io(const struct lu_env *env, - const struct cl_io_slice *slice) -{ - struct vvp_io *vio; - - vio = container_of(slice, struct vvp_io, vui_cl); - LASSERT(vio == vvp_env_io(env)); - - return vio; -} - struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice) { return container_of0(slice, struct ccc_req, crq_cl); diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 9856bb6..86e93c0 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -693,7 +693,6 @@ void ll_readahead_init(struct inode *inode, struct ll_readahead_state *ras); int ll_readahead(const struct lu_env *env, struct cl_io *io, struct cl_page_list *queue, struct ll_readahead_state *ras, bool hit); -int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io); struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage); void ll_cl_fini(struct ll_cl_context *lcc); diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index e04f23e..7af8c44 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -164,12 +164,6 @@ struct vvp_io { bool vui_ra_valid; }; -/** - * True, if \a io is a normal io, False for other splice_{read,write}. - * must be implemented in arch specific code. - */ -int cl_is_normalio(const struct lu_env *env, const struct cl_io *io); - extern struct lu_context_key ccc_key; extern struct lu_context_key vvp_session_key; @@ -334,19 +328,6 @@ void ccc_umount(const struct lu_env *env, struct cl_device *dev); int ccc_global_init(struct lu_device_type *device_type); void ccc_global_fini(struct lu_device_type *device_type); -int vvp_io_one_lock_index(const struct lu_env *env, struct cl_io *io, - __u32 enqflags, enum cl_lock_mode mode, - pgoff_t start, pgoff_t end); -int vvp_io_one_lock(const struct lu_env *env, struct cl_io *io, - __u32 enqflags, enum cl_lock_mode mode, - loff_t start, loff_t end); -void vvp_io_end(const struct lu_env *env, const struct cl_io_slice *ios); -void vvp_io_advance(const struct lu_env *env, const struct cl_io_slice *ios, - size_t nob); -void vvp_io_update_iov(const struct lu_env *env, struct vvp_io *cio, - struct cl_io *io); -int ccc_prep_size(const struct lu_env *env, struct cl_object *obj, - struct cl_io *io, loff_t start, size_t count, int *exceed); void ccc_req_completion(const struct lu_env *env, const struct cl_req_slice *slice, int ioret); void ccc_req_attr_set(const struct lu_env *env, @@ -397,8 +378,6 @@ static inline struct vvp_lock *cl2vvp_lock(const struct cl_lock_slice *slice) return container_of(slice, struct vvp_lock, vlk_cl); } -struct vvp_io *cl2vvp_io(const struct lu_env *env, - const struct cl_io_slice *slice); struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice); int cl_setattr_ost(struct inode *inode, const struct iattr *attr); @@ -447,6 +426,7 @@ void ccc_inode_lsm_put(struct inode *inode, struct lov_stripe_md *lsm); int vvp_io_init(const struct lu_env *env, struct cl_object *obj, struct cl_io *io); +int vvp_io_write_commit(const struct lu_env *env, struct cl_io *io); int vvp_lock_init(const struct lu_env *env, struct cl_object *obj, struct cl_lock *lock, const struct cl_io *io); int vvp_page_init(const struct lu_env *env, struct cl_object *obj, diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 53cf2be..48b0693 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -47,10 +47,21 @@ #include "llite_internal.h" #include "vvp_internal.h" +struct vvp_io *cl2vvp_io(const struct lu_env *env, + const struct cl_io_slice *slice) +{ + struct vvp_io *vio; + + vio = container_of(slice, struct vvp_io, vui_cl); + LASSERT(vio == vvp_env_io(env)); + + return vio; +} + /** * True, if \a io is a normal io, False for splice_{read,write} */ -int cl_is_normalio(const struct lu_env *env, const struct cl_io *io) +static int cl_is_normalio(const struct lu_env *env, const struct cl_io *io) { struct vvp_io *vio = vvp_env_io(env); @@ -93,12 +104,160 @@ static bool can_populate_pages(const struct lu_env *env, struct cl_io *io, return rc; } +static void vvp_object_size_lock(struct cl_object *obj) +{ + struct inode *inode = vvp_object_inode(obj); + + ll_inode_size_lock(inode); + cl_object_attr_lock(obj); +} + +static void vvp_object_size_unlock(struct cl_object *obj) +{ + struct inode *inode = vvp_object_inode(obj); + + cl_object_attr_unlock(obj); + ll_inode_size_unlock(inode); +} + +/** + * Helper function that if necessary adjusts file size (inode->i_size), when + * position at the offset \a pos is accessed. File size can be arbitrary stale + * on a Lustre client, but client at least knows KMS. If accessed area is + * inside [0, KMS], set file size to KMS, otherwise glimpse file size. + * + * Locking: cl_isize_lock is used to serialize changes to inode size and to + * protect consistency between inode size and cl_object + * attributes. cl_object_size_lock() protects consistency between cl_attr's of + * top-object and sub-objects. + */ +static int vvp_prep_size(const struct lu_env *env, struct cl_object *obj, + struct cl_io *io, loff_t start, size_t count, + int *exceed) +{ + struct cl_attr *attr = ccc_env_thread_attr(env); + struct inode *inode = vvp_object_inode(obj); + loff_t pos = start + count - 1; + loff_t kms; + int result; + + /* + * Consistency guarantees: following possibilities exist for the + * relation between region being accessed and real file size at this + * moment: + * + * (A): the region is completely inside of the file; + * + * (B-x): x bytes of region are inside of the file, the rest is + * outside; + * + * (C): the region is completely outside of the file. + * + * This classification is stable under DLM lock already acquired by + * the caller, because to change the class, other client has to take + * DLM lock conflicting with our lock. Also, any updates to ->i_size + * by other threads on this client are serialized by + * ll_inode_size_lock(). This guarantees that short reads are handled + * correctly in the face of concurrent writes and truncates. + */ + vvp_object_size_lock(obj); + result = cl_object_attr_get(env, obj, attr); + if (result == 0) { + kms = attr->cat_kms; + if (pos > kms) { + /* + * A glimpse is necessary to determine whether we + * return a short read (B) or some zeroes at the end + * of the buffer (C) + */ + vvp_object_size_unlock(obj); + result = cl_glimpse_lock(env, io, inode, obj, 0); + if (result == 0 && exceed) { + /* If objective page index exceed end-of-file + * page index, return directly. Do not expect + * kernel will check such case correctly. + * linux-2.6.18-128.1.1 miss to do that. + * --bug 17336 + */ + loff_t size = i_size_read(inode); + loff_t cur_index = start >> PAGE_CACHE_SHIFT; + loff_t size_index = (size - 1) >> + PAGE_CACHE_SHIFT; + + if ((size == 0 && cur_index != 0) || + size_index < cur_index) + *exceed = 1; + } + return result; + } + /* + * region is within kms and, hence, within real file + * size (A). We need to increase i_size to cover the + * read region so that generic_file_read() will do its + * job, but that doesn't mean the kms size is + * _correct_, it is only the _minimum_ size. If + * someone does a stat they will get the correct size + * which will always be >= the kms value here. + * b=11081 + */ + if (i_size_read(inode) < kms) { + i_size_write(inode, kms); + CDEBUG(D_VFSTRACE, DFID " updating i_size %llu\n", + PFID(lu_object_fid(&obj->co_lu)), + (__u64)i_size_read(inode)); + } + } + + vvp_object_size_unlock(obj); + + return result; +} + /***************************************************************************** * * io operations. * */ +static int vvp_io_one_lock_index(const struct lu_env *env, struct cl_io *io, + __u32 enqflags, enum cl_lock_mode mode, + pgoff_t start, pgoff_t end) +{ + struct vvp_io *vio = vvp_env_io(env); + struct cl_lock_descr *descr = &vio->vui_link.cill_descr; + struct cl_object *obj = io->ci_obj; + + CLOBINVRNT(env, obj, vvp_object_invariant(obj)); + + CDEBUG(D_VFSTRACE, "lock: %d [%lu, %lu]\n", mode, start, end); + + memset(&vio->vui_link, 0, sizeof(vio->vui_link)); + + if (vio->vui_fd && (vio->vui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { + descr->cld_mode = CLM_GROUP; + descr->cld_gid = vio->vui_fd->fd_grouplock.cg_gid; + } else { + descr->cld_mode = mode; + } + descr->cld_obj = obj; + descr->cld_start = start; + descr->cld_end = end; + descr->cld_enq_flags = enqflags; + + cl_io_lock_add(env, io, &vio->vui_link); + return 0; +} + +static int vvp_io_one_lock(const struct lu_env *env, struct cl_io *io, + __u32 enqflags, enum cl_lock_mode mode, + loff_t start, loff_t end) +{ + struct cl_object *obj = io->ci_obj; + + return vvp_io_one_lock_index(env, io, enqflags, mode, + cl_index(obj, start), cl_index(obj, end)); +} + static int vvp_io_write_iter_init(const struct lu_env *env, const struct cl_io_slice *ios) { @@ -303,6 +462,33 @@ static int vvp_mmap_locks(const struct lu_env *env, return result; } +static void vvp_io_advance(const struct lu_env *env, + const struct cl_io_slice *ios, + size_t nob) +{ + struct vvp_io *vio = cl2vvp_io(env, ios); + struct cl_io *io = ios->cis_io; + struct cl_object *obj = ios->cis_io->ci_obj; + + CLOBINVRNT(env, obj, vvp_object_invariant(obj)); + + if (!cl_is_normalio(env, io)) + return; + + iov_iter_reexpand(vio->vui_iter, vio->vui_tot_count -= nob); +} + +static void vvp_io_update_iov(const struct lu_env *env, + struct vvp_io *vio, struct cl_io *io) +{ + size_t size = io->u.ci_rw.crw_count; + + if (!cl_is_normalio(env, io) || !vio->vui_iter) + return; + + iov_iter_truncate(vio->vui_iter, size); +} + static int vvp_io_rw_lock(const struct lu_env *env, struct cl_io *io, enum cl_lock_mode mode, loff_t start, loff_t end) { @@ -514,7 +700,7 @@ static int vvp_io_read_start(const struct lu_env *env, if (!can_populate_pages(env, io, inode)) return 0; - result = ccc_prep_size(env, obj, io, pos, tot, &exceed); + result = vvp_prep_size(env, obj, io, pos, tot, &exceed); if (result != 0) return result; else if (exceed != 0) @@ -886,7 +1072,7 @@ static int vvp_io_fault_start(const struct lu_env *env, /* offset of the last byte on the page */ offset = cl_offset(obj, fio->ft_index + 1) - 1; LASSERT(cl_index(obj, offset) == fio->ft_index); - result = ccc_prep_size(env, obj, io, 0, offset + 1, NULL); + result = vvp_prep_size(env, obj, io, 0, offset + 1, NULL); if (result != 0) return result; @@ -1075,6 +1261,12 @@ static int vvp_io_read_page(const struct lu_env *env, return 0; } +void vvp_io_end(const struct lu_env *env, const struct cl_io_slice *ios) +{ + CLOBINVRNT(env, ios->cis_io->ci_obj, + vvp_object_invariant(ios->cis_io->ci_obj)); +} + static const struct cl_io_operations vvp_io_ops = { .op = { [CIT_READ] = { -- cgit v0.10.2 From 103b8bda3e4be03e3d05ccb3c2ae5bb4a9182067 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 30 Mar 2016 19:48:54 -0400 Subject: staging/lustre/llite: rename ccc_req to vvp_req Rename struct ccc_req to struct vvp_req and move related functions from lustre/llite/lcommon_cl.c to the new file lustre/llite/vvp_req.c. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/13377 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Jinshan Xiong Reviewed-by: Bobi Jam Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index 104dc9f..918be65 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -140,7 +140,7 @@ struct cl_device_operations { * cl_req_slice_add(). * * \see osc_req_init(), lov_req_init(), lovsub_req_init() - * \see ccc_req_init() + * \see vvp_req_init() */ int (*cdo_req_init)(const struct lu_env *env, struct cl_device *dev, struct cl_req *req); diff --git a/drivers/staging/lustre/lustre/llite/Makefile b/drivers/staging/lustre/lustre/llite/Makefile index 24085e2..2ce10ff 100644 --- a/drivers/staging/lustre/lustre/llite/Makefile +++ b/drivers/staging/lustre/lustre/llite/Makefile @@ -5,6 +5,7 @@ lustre-y := dcache.o dir.o file.o llite_close.o llite_lib.o llite_nfs.o \ xattr.o xattr_cache.o remote_perm.o llite_rmtacl.o \ rw26.o super25.o statahead.o \ glimpse.o lcommon_cl.o lcommon_misc.o \ - vvp_dev.o vvp_page.o vvp_lock.o vvp_io.o vvp_object.o lproc_llite.o + vvp_dev.o vvp_page.o vvp_lock.o vvp_io.o vvp_object.o vvp_req.o \ + lproc_llite.o llite_lloop-y := lloop.o diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 1b11103..d28546a 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -61,14 +61,11 @@ #include "../llite/llite_internal.h" -static const struct cl_req_operations ccc_req_ops; - /* * ccc_ prefix stands for "Common Client Code". */ static struct kmem_cache *ccc_thread_kmem; -static struct kmem_cache *ccc_req_kmem; static struct lu_kmem_descr ccc_caches[] = { { @@ -77,11 +74,6 @@ static struct lu_kmem_descr ccc_caches[] = { .ckd_size = sizeof(struct ccc_thread_info), }, { - .ckd_cache = &ccc_req_kmem, - .ckd_name = "ccc_req_kmem", - .ckd_size = sizeof(struct ccc_req) - }, - { .ckd_cache = NULL } }; @@ -116,22 +108,6 @@ struct lu_context_key ccc_key = { .lct_fini = ccc_key_fini }; -int ccc_req_init(const struct lu_env *env, struct cl_device *dev, - struct cl_req *req) -{ - struct ccc_req *vrq; - int result; - - vrq = kmem_cache_zalloc(ccc_req_kmem, GFP_NOFS); - if (vrq) { - cl_req_slice_add(req, &vrq->crq_cl, dev, &ccc_req_ops); - result = 0; - } else { - result = -ENOMEM; - } - return result; -} - /** * An `emergency' environment used by ccc_inode_fini() when cl_env_get() * fails. Access to this environment is serialized by ccc_inode_fini_guard @@ -184,75 +160,6 @@ void ccc_global_fini(struct lu_device_type *device_type) lu_kmem_fini(ccc_caches); } -/***************************************************************************** - * - * Transfer operations. - * - */ - -void ccc_req_completion(const struct lu_env *env, - const struct cl_req_slice *slice, int ioret) -{ - struct ccc_req *vrq; - - if (ioret > 0) - cl_stats_tally(slice->crs_dev, slice->crs_req->crq_type, ioret); - - vrq = cl2ccc_req(slice); - kmem_cache_free(ccc_req_kmem, vrq); -} - -/** - * Implementation of struct cl_req_operations::cro_attr_set() for ccc - * layer. ccc is responsible for - * - * - o_[mac]time - * - * - o_mode - * - * - o_parent_seq - * - * - o_[ug]id - * - * - o_parent_oid - * - * - o_parent_ver - * - * - o_ioepoch, - * - */ -void ccc_req_attr_set(const struct lu_env *env, - const struct cl_req_slice *slice, - const struct cl_object *obj, - struct cl_req_attr *attr, u64 flags) -{ - struct inode *inode; - struct obdo *oa; - u32 valid_flags; - - oa = attr->cra_oa; - inode = vvp_object_inode(obj); - valid_flags = OBD_MD_FLTYPE; - - if (slice->crs_req->crq_type == CRT_WRITE) { - if (flags & OBD_MD_FLEPOCH) { - oa->o_valid |= OBD_MD_FLEPOCH; - oa->o_ioepoch = ll_i2info(inode)->lli_ioepoch; - valid_flags |= OBD_MD_FLMTIME | OBD_MD_FLCTIME | - OBD_MD_FLUID | OBD_MD_FLGID; - } - } - obdo_from_inode(oa, inode, valid_flags & flags); - obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid); - memcpy(attr->cra_jobid, ll_i2info(inode)->lli_jobid, - JOBSTATS_JOBID_SIZE); -} - -static const struct cl_req_operations ccc_req_ops = { - .cro_attr_set = ccc_req_attr_set, - .cro_completion = ccc_req_completion -}; - int cl_setattr_ost(struct inode *inode, const struct iattr *attr) { struct lu_env *env; @@ -301,17 +208,6 @@ again: return result; } -/***************************************************************************** - * - * Type conversions. - * - */ - -struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice) -{ - return container_of0(slice, struct ccc_req, crq_cl); -} - /** * Initialize or update CLIO structures for regular files when new * meta-data arrives from the server. diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 030a246..5d3beb6 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -59,6 +59,7 @@ struct kmem_cache *vvp_lock_kmem; struct kmem_cache *vvp_object_kmem; +struct kmem_cache *vvp_req_kmem; static struct kmem_cache *vvp_thread_kmem; static struct kmem_cache *vvp_session_kmem; static struct lu_kmem_descr vvp_caches[] = { @@ -73,6 +74,11 @@ static struct lu_kmem_descr vvp_caches[] = { .ckd_size = sizeof(struct vvp_object), }, { + .ckd_cache = &vvp_req_kmem, + .ckd_name = "vvp_req_kmem", + .ckd_size = sizeof(struct vvp_req), + }, + { .ckd_cache = &vvp_thread_kmem, .ckd_name = "vvp_thread_kmem", .ckd_size = sizeof(struct vvp_thread_info), @@ -145,7 +151,7 @@ static const struct lu_device_operations vvp_lu_ops = { }; static const struct cl_device_operations vvp_cl_ops = { - .cdo_req_init = ccc_req_init + .cdo_req_init = vvp_req_init }; static struct lu_device *vvp_device_free(const struct lu_env *env, diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 7af8c44..99e7ef3 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -169,6 +169,7 @@ extern struct lu_context_key vvp_session_key; extern struct kmem_cache *vvp_lock_kmem; extern struct kmem_cache *vvp_object_kmem; +extern struct kmem_cache *vvp_req_kmem; struct ccc_thread_info { struct cl_lock cti_lock; @@ -313,8 +314,8 @@ struct vvp_lock { struct cl_lock_slice vlk_cl; }; -struct ccc_req { - struct cl_req_slice crq_cl; +struct vvp_req { + struct cl_req_slice vrq_cl; }; void *ccc_key_init(const struct lu_context *ctx, @@ -322,19 +323,10 @@ void *ccc_key_init(const struct lu_context *ctx, void ccc_key_fini(const struct lu_context *ctx, struct lu_context_key *key, void *data); -int ccc_req_init(const struct lu_env *env, struct cl_device *dev, - struct cl_req *req); void ccc_umount(const struct lu_env *env, struct cl_device *dev); int ccc_global_init(struct lu_device_type *device_type); void ccc_global_fini(struct lu_device_type *device_type); -void ccc_req_completion(const struct lu_env *env, - const struct cl_req_slice *slice, int ioret); -void ccc_req_attr_set(const struct lu_env *env, - const struct cl_req_slice *slice, - const struct cl_object *obj, - struct cl_req_attr *oa, u64 flags); - static inline struct lu_device *vvp2lu_dev(struct vvp_device *vdv) { return &vdv->vdv_cl.cd_lu_dev; @@ -378,8 +370,6 @@ static inline struct vvp_lock *cl2vvp_lock(const struct cl_lock_slice *slice) return container_of(slice, struct vvp_lock, vlk_cl); } -struct ccc_req *cl2ccc_req(const struct cl_req_slice *slice); - int cl_setattr_ost(struct inode *inode, const struct iattr *attr); int cl_file_inode_init(struct inode *inode, struct lustre_md *md); @@ -431,6 +421,8 @@ int vvp_lock_init(const struct lu_env *env, struct cl_object *obj, struct cl_lock *lock, const struct cl_io *io); int vvp_page_init(const struct lu_env *env, struct cl_object *obj, struct cl_page *page, pgoff_t index); +int vvp_req_init(const struct lu_env *env, struct cl_device *dev, + struct cl_req *req); struct lu_object *vvp_object_alloc(const struct lu_env *env, const struct lu_object_header *hdr, struct lu_device *dev); diff --git a/drivers/staging/lustre/lustre/llite/vvp_req.c b/drivers/staging/lustre/lustre/llite/vvp_req.c new file mode 100644 index 0000000..fb88629 --- /dev/null +++ b/drivers/staging/lustre/lustre/llite/vvp_req.c @@ -0,0 +1,121 @@ +/* + * GPL HEADER START + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.gnu.org/licenses/gpl-2.0.html + * + * GPL HEADER END + */ +/* + * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. + * + * Copyright (c) 2011, 2014, Intel Corporation. + */ + +#define DEBUG_SUBSYSTEM S_LLITE + +#include "../include/lustre/lustre_idl.h" +#include "../include/cl_object.h" +#include "../include/obd.h" +#include "../include/obd_support.h" +#include "../include/lustre_lite.h" +#include "llite_internal.h" +#include "vvp_internal.h" + +static inline struct vvp_req *cl2vvp_req(const struct cl_req_slice *slice) +{ + return container_of0(slice, struct vvp_req, vrq_cl); +} + +/** + * Implementation of struct cl_req_operations::cro_attr_set() for VVP + * layer. VVP is responsible for + * + * - o_[mac]time + * + * - o_mode + * + * - o_parent_seq + * + * - o_[ug]id + * + * - o_parent_oid + * + * - o_parent_ver + * + * - o_ioepoch, + * + */ +void vvp_req_attr_set(const struct lu_env *env, + const struct cl_req_slice *slice, + const struct cl_object *obj, + struct cl_req_attr *attr, u64 flags) +{ + struct inode *inode; + struct obdo *oa; + u32 valid_flags; + + oa = attr->cra_oa; + inode = vvp_object_inode(obj); + valid_flags = OBD_MD_FLTYPE; + + if (slice->crs_req->crq_type == CRT_WRITE) { + if (flags & OBD_MD_FLEPOCH) { + oa->o_valid |= OBD_MD_FLEPOCH; + oa->o_ioepoch = ll_i2info(inode)->lli_ioepoch; + valid_flags |= OBD_MD_FLMTIME | OBD_MD_FLCTIME | + OBD_MD_FLUID | OBD_MD_FLGID; + } + } + obdo_from_inode(oa, inode, valid_flags & flags); + obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid); + memcpy(attr->cra_jobid, ll_i2info(inode)->lli_jobid, + JOBSTATS_JOBID_SIZE); +} + +void vvp_req_completion(const struct lu_env *env, + const struct cl_req_slice *slice, int ioret) +{ + struct vvp_req *vrq; + + if (ioret > 0) + cl_stats_tally(slice->crs_dev, slice->crs_req->crq_type, ioret); + + vrq = cl2vvp_req(slice); + kmem_cache_free(vvp_req_kmem, vrq); +} + +static const struct cl_req_operations vvp_req_ops = { + .cro_attr_set = vvp_req_attr_set, + .cro_completion = vvp_req_completion +}; + +int vvp_req_init(const struct lu_env *env, struct cl_device *dev, + struct cl_req *req) +{ + struct vvp_req *vrq; + int result; + + vrq = kmem_cache_zalloc(vvp_req_kmem, GFP_NOFS); + if (vrq) { + cl_req_slice_add(req, &vrq->vrq_cl, dev, &vvp_req_ops); + result = 0; + } else { + result = -ENOMEM; + } + return result; +} -- cgit v0.10.2 From 98eae5e71cdcf2954f9b022a78d0507878410df6 Mon Sep 17 00:00:00 2001 From: John Hammond Date: Wed, 30 Mar 2016 19:48:55 -0400 Subject: staging/lustre/llite: Rename struct ccc_grouplock to ll_grouplock And move the definition from vvp_internal.h to llite_internal.h. Signed-off-by: John L. Hammond Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/13714 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Bobi Jam Reviewed-by: James Simmons Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 63aa080..210d1e2 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -278,7 +278,7 @@ static int ll_md_close(struct obd_export *md_exp, struct inode *inode, /* clear group lock, if present */ if (unlikely(fd->fd_flags & LL_FILE_GROUP_LOCKED)) - ll_put_grouplock(inode, file, fd->fd_grouplock.cg_gid); + ll_put_grouplock(inode, file, fd->fd_grouplock.lg_gid); if (fd->fd_lease_och) { bool lease_broken; @@ -1570,7 +1570,7 @@ ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) { struct ll_inode_info *lli = ll_i2info(inode); struct ll_file_data *fd = LUSTRE_FPRIVATE(file); - struct ccc_grouplock grouplock; + struct ll_grouplock grouplock; int rc; if (arg == 0) { @@ -1584,11 +1584,11 @@ ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) spin_lock(&lli->lli_lock); if (fd->fd_flags & LL_FILE_GROUP_LOCKED) { CWARN("group lock already existed with gid %lu\n", - fd->fd_grouplock.cg_gid); + fd->fd_grouplock.lg_gid); spin_unlock(&lli->lli_lock); return -EINVAL; } - LASSERT(!fd->fd_grouplock.cg_lock); + LASSERT(!fd->fd_grouplock.lg_lock); spin_unlock(&lli->lli_lock); rc = cl_get_grouplock(ll_i2info(inode)->lli_clob, @@ -1617,7 +1617,7 @@ static int ll_put_grouplock(struct inode *inode, struct file *file, { struct ll_inode_info *lli = ll_i2info(inode); struct ll_file_data *fd = LUSTRE_FPRIVATE(file); - struct ccc_grouplock grouplock; + struct ll_grouplock grouplock; spin_lock(&lli->lli_lock); if (!(fd->fd_flags & LL_FILE_GROUP_LOCKED)) { @@ -1625,11 +1625,11 @@ static int ll_put_grouplock(struct inode *inode, struct file *file, CWARN("no group lock held\n"); return -EINVAL; } - LASSERT(fd->fd_grouplock.cg_lock); + LASSERT(fd->fd_grouplock.lg_lock); - if (fd->fd_grouplock.cg_gid != arg) { + if (fd->fd_grouplock.lg_gid != arg) { CWARN("group lock %lu doesn't match current id %lu\n", - arg, fd->fd_grouplock.cg_gid); + arg, fd->fd_grouplock.lg_gid); spin_unlock(&lli->lli_lock); return -EINVAL; } diff --git a/drivers/staging/lustre/lustre/llite/lcommon_misc.c b/drivers/staging/lustre/lustre/llite/lcommon_misc.c index 68e3db1..5e3e43f 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_misc.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_misc.c @@ -42,8 +42,8 @@ #include "../include/obd.h" #include "../include/cl_object.h" -#include "vvp_internal.h" #include "../include/lustre_lite.h" +#include "llite_internal.h" /* Initialize the default and maximum LOV EA and cookie sizes. This allows * us to make MDS RPCs with large enough reply buffers to hold the @@ -126,7 +126,7 @@ int cl_ocd_update(struct obd_device *host, #define GROUPLOCK_SCOPE "grouplock" int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, - struct ccc_grouplock *cg) + struct ll_grouplock *cg) { struct lu_env *env; struct cl_io *io; @@ -172,25 +172,25 @@ int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, return rc; } - cg->cg_env = cl_env_get(&refcheck); - cg->cg_io = io; - cg->cg_lock = lock; - cg->cg_gid = gid; - LASSERT(cg->cg_env == env); + cg->lg_env = cl_env_get(&refcheck); + cg->lg_io = io; + cg->lg_lock = lock; + cg->lg_gid = gid; + LASSERT(cg->lg_env == env); cl_env_unplant(env, &refcheck); return 0; } -void cl_put_grouplock(struct ccc_grouplock *cg) +void cl_put_grouplock(struct ll_grouplock *cg) { - struct lu_env *env = cg->cg_env; - struct cl_io *io = cg->cg_io; - struct cl_lock *lock = cg->cg_lock; + struct lu_env *env = cg->lg_env; + struct cl_io *io = cg->lg_io; + struct cl_lock *lock = cg->lg_lock; int refcheck; - LASSERT(cg->cg_env); - LASSERT(cg->cg_gid); + LASSERT(cg->lg_env); + LASSERT(cg->lg_gid); cl_env_implant(env, &refcheck); cl_env_put(env, &refcheck); diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 86e93c0..8b943df 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -99,6 +99,13 @@ struct ll_remote_perm { */ }; +struct ll_grouplock { + struct lu_env *lg_env; + struct cl_io *lg_io; + struct cl_lock *lg_lock; + unsigned long lg_gid; +}; + enum lli_flags { /* MDS has an authority for the Size-on-MDS attributes. */ LLIF_MDS_SIZE_LOCK = (1 << 0), @@ -612,7 +619,7 @@ extern struct kmem_cache *ll_file_data_slab; struct lustre_handle; struct ll_file_data { struct ll_readahead_state fd_ras; - struct ccc_grouplock fd_grouplock; + struct ll_grouplock fd_grouplock; __u64 lfd_pos; __u32 fd_flags; fmode_t fd_omode; @@ -655,6 +662,11 @@ static inline int ll_need_32bit_api(struct ll_sb_info *sbi) void ll_ras_enter(struct file *f); +/* llite/lcommon_misc.c */ +int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, + struct ll_grouplock *cg); +void cl_put_grouplock(struct ll_grouplock *cg); + /* llite/lproc_llite.c */ int ldebugfs_register_mountpoint(struct dentry *parent, struct super_block *sb, char *osc, char *mdc); diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 99e7ef3..4740ff5 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -388,17 +388,6 @@ int cl_ocd_update(struct obd_device *host, struct obd_device *watched, enum obd_notify_event ev, void *owner, void *data); -struct ccc_grouplock { - struct lu_env *cg_env; - struct cl_io *cg_io; - struct cl_lock *cg_lock; - unsigned long cg_gid; -}; - -int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, - struct ccc_grouplock *cg); -void cl_put_grouplock(struct ccc_grouplock *cg); - /** * New interfaces to get and put lov_stripe_md from lov layer. This violates * layering because lov_stripe_md is supposed to be a private data in lov. diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 48b0693..18bc71b 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -235,7 +235,7 @@ static int vvp_io_one_lock_index(const struct lu_env *env, struct cl_io *io, if (vio->vui_fd && (vio->vui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { descr->cld_mode = CLM_GROUP; - descr->cld_gid = vio->vui_fd->fd_grouplock.cg_gid; + descr->cld_gid = vio->vui_fd->fd_grouplock.lg_gid; } else { descr->cld_mode = mode; } -- cgit v0.10.2 From 9989a58ee1b1e47008870e60583cefc105402cfa Mon Sep 17 00:00:00 2001 From: John Hammond Date: Wed, 30 Mar 2016 19:48:56 -0400 Subject: staging/lustre/llite: Rename struct vvp_thread_info to ll_thread_info struct vvp_thread_info is used in the non-VVP parts of llite so rename it struct ll_thread_info. Rename supporting functions accordingly. Signed-off-by: John L. Hammond Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/13714 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Bobi Jam Reviewed-by: James Simmons Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 210d1e2..f7aabac 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -1221,7 +1221,7 @@ static ssize_t ll_file_read_iter(struct kiocb *iocb, struct iov_iter *to) if (IS_ERR(env)) return PTR_ERR(env); - args = vvp_env_args(env, IO_NORMAL); + args = ll_env_args(env, IO_NORMAL); args->u.normal.via_iter = to; args->u.normal.via_iocb = iocb; @@ -1245,7 +1245,7 @@ static ssize_t ll_file_write_iter(struct kiocb *iocb, struct iov_iter *from) if (IS_ERR(env)) return PTR_ERR(env); - args = vvp_env_args(env, IO_NORMAL); + args = ll_env_args(env, IO_NORMAL); args->u.normal.via_iter = from; args->u.normal.via_iocb = iocb; @@ -1271,7 +1271,7 @@ static ssize_t ll_file_splice_read(struct file *in_file, loff_t *ppos, if (IS_ERR(env)) return PTR_ERR(env); - args = vvp_env_args(env, IO_SPLICE); + args = ll_env_args(env, IO_SPLICE); args->u.splice.via_pipe = pipe; args->u.splice.via_flags = flags; diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 8b943df..a6ee2fe 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -855,30 +855,30 @@ struct ll_cl_context { int lcc_refcheck; }; -struct vvp_thread_info { - struct vvp_io_args vti_args; - struct ra_io_arg vti_ria; - struct ll_cl_context vti_io_ctx; +struct ll_thread_info { + struct vvp_io_args lti_args; + struct ra_io_arg lti_ria; + struct ll_cl_context lti_io_ctx; }; -static inline struct vvp_thread_info *vvp_env_info(const struct lu_env *env) +extern struct lu_context_key ll_thread_key; +static inline struct ll_thread_info *ll_env_info(const struct lu_env *env) { - extern struct lu_context_key vvp_key; - struct vvp_thread_info *info; + struct ll_thread_info *lti; - info = lu_context_key_get(&env->le_ctx, &vvp_key); - LASSERT(info); - return info; + lti = lu_context_key_get(&env->le_ctx, &ll_thread_key); + LASSERT(lti); + return lti; } -static inline struct vvp_io_args *vvp_env_args(const struct lu_env *env, - enum vvp_io_subtype type) +static inline struct vvp_io_args *ll_env_args(const struct lu_env *env, + enum vvp_io_subtype type) { - struct vvp_io_args *ret = &vvp_env_info(env)->vti_args; + struct vvp_io_args *via = &ll_env_info(env)->lti_args; - ret->via_io_subtype = type; + via->via_io_subtype = type; - return ret; + return via; } int vvp_global_init(void); diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index 634f0bb..f9bc3e4 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -102,7 +102,7 @@ struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage) if (IS_ERR(env)) return ERR_CAST(env); - lcc = &vvp_env_info(env)->vti_io_ctx; + lcc = &ll_env_info(env)->lti_io_ctx; memset(lcc, 0, sizeof(*lcc)); lcc->lcc_env = env; lcc->lcc_refcheck = refcheck; @@ -523,12 +523,12 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, bool hit) { struct vvp_io *vio = vvp_env_io(env); - struct vvp_thread_info *vti = vvp_env_info(env); + struct ll_thread_info *lti = ll_env_info(env); struct cl_attr *attr = ccc_env_thread_attr(env); unsigned long start = 0, end = 0, reserved; unsigned long ra_end, len, mlen = 0; struct inode *inode; - struct ra_io_arg *ria = &vti->vti_ria; + struct ra_io_arg *ria = <i->lti_ria; struct cl_object *clob; int ret = 0; __u64 kms; diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 5d3beb6..2278433 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -57,13 +57,18 @@ * "llite_" (var. "ll_") prefix. */ +static struct kmem_cache *ll_thread_kmem; struct kmem_cache *vvp_lock_kmem; struct kmem_cache *vvp_object_kmem; struct kmem_cache *vvp_req_kmem; -static struct kmem_cache *vvp_thread_kmem; static struct kmem_cache *vvp_session_kmem; static struct lu_kmem_descr vvp_caches[] = { { + .ckd_cache = &ll_thread_kmem, + .ckd_name = "ll_thread_kmem", + .ckd_size = sizeof(struct ll_thread_info), + }, + { .ckd_cache = &vvp_lock_kmem, .ckd_name = "vvp_lock_kmem", .ckd_size = sizeof(struct vvp_lock), @@ -79,11 +84,6 @@ static struct lu_kmem_descr vvp_caches[] = { .ckd_size = sizeof(struct vvp_req), }, { - .ckd_cache = &vvp_thread_kmem, - .ckd_name = "vvp_thread_kmem", - .ckd_size = sizeof(struct vvp_thread_info), - }, - { .ckd_cache = &vvp_session_kmem, .ckd_name = "vvp_session_kmem", .ckd_size = sizeof(struct vvp_session) @@ -93,25 +93,31 @@ static struct lu_kmem_descr vvp_caches[] = { } }; -static void *vvp_key_init(const struct lu_context *ctx, - struct lu_context_key *key) +static void *ll_thread_key_init(const struct lu_context *ctx, + struct lu_context_key *key) { struct vvp_thread_info *info; - info = kmem_cache_zalloc(vvp_thread_kmem, GFP_NOFS); + info = kmem_cache_zalloc(ll_thread_kmem, GFP_NOFS); if (!info) info = ERR_PTR(-ENOMEM); return info; } -static void vvp_key_fini(const struct lu_context *ctx, - struct lu_context_key *key, void *data) +static void ll_thread_key_fini(const struct lu_context *ctx, + struct lu_context_key *key, void *data) { struct vvp_thread_info *info = data; - kmem_cache_free(vvp_thread_kmem, info); + kmem_cache_free(ll_thread_kmem, info); } +struct lu_context_key ll_thread_key = { + .lct_tags = LCT_CL_THREAD, + .lct_init = ll_thread_key_init, + .lct_fini = ll_thread_key_fini +}; + static void *vvp_session_key_init(const struct lu_context *ctx, struct lu_context_key *key) { @@ -131,12 +137,6 @@ static void vvp_session_key_fini(const struct lu_context *ctx, kmem_cache_free(vvp_session_kmem, session); } -struct lu_context_key vvp_key = { - .lct_tags = LCT_CL_THREAD, - .lct_init = vvp_key_init, - .lct_fini = vvp_key_fini -}; - struct lu_context_key vvp_session_key = { .lct_tags = LCT_SESSION, .lct_init = vvp_session_key_init, @@ -144,7 +144,7 @@ struct lu_context_key vvp_session_key = { }; /* type constructor/destructor: vvp_type_{init,fini,start,stop}(). */ -LU_TYPE_INIT_FINI(vvp, &ccc_key, &vvp_key, &vvp_session_key); +LU_TYPE_INIT_FINI(vvp, &ccc_key, &ll_thread_key, &vvp_session_key); static const struct lu_device_operations vvp_lu_ops = { .ldo_object_alloc = vvp_object_alloc -- cgit v0.10.2 From 9acc4500b44723d12bec63519038ef820479eaad Mon Sep 17 00:00:00 2001 From: John Hammond Date: Wed, 30 Mar 2016 19:48:57 -0400 Subject: staging/lustre/llite: rename struct ccc_thread_info to vvp_thread_info struct ccc_thread_info is used in the VVP parts of llite so rename it struct vvp_thread_info. Rename supporting functions accordingly. Move init code from lcommon_cl.c to vvp_dev.c Signed-off-by: John L. Hammond Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/13714 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Bobi Jam Reviewed-by: James Simmons Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index f7aabac..69b56a8 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -998,7 +998,7 @@ int ll_merge_attr(const struct lu_env *env, struct inode *inode) { struct ll_inode_info *lli = ll_i2info(inode); struct cl_object *obj = lli->lli_clob; - struct cl_attr *attr = ccc_env_thread_attr(env); + struct cl_attr *attr = vvp_env_thread_attr(env); s64 atime; s64 mtime; s64 ctime; @@ -1131,7 +1131,7 @@ ll_file_io_generic(const struct lu_env *env, struct vvp_io_args *args, file->f_path.dentry->d_name.name, iot, *ppos, count); restart: - io = ccc_env_thread_io(env); + io = vvp_env_thread_io(env); ll_io_init(io, file, iot == CIT_WRITE); if (cl_io_rw_init(env, io, iot, *ppos, count) == 0) { @@ -2612,7 +2612,7 @@ int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end, if (IS_ERR(env)) return PTR_ERR(env); - io = ccc_env_thread_io(env); + io = vvp_env_thread_io(env); io->ci_obj = ll_i2info(inode)->lli_clob; io->ci_ignore_layout = ignore_layout; diff --git a/drivers/staging/lustre/lustre/llite/glimpse.c b/drivers/staging/lustre/lustre/llite/glimpse.c index d76fa16..d8ea754 100644 --- a/drivers/staging/lustre/lustre/llite/glimpse.c +++ b/drivers/staging/lustre/lustre/llite/glimpse.c @@ -93,7 +93,7 @@ int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, if (!(lli->lli_flags & LLIF_MDS_SIZE_LOCK)) { CDEBUG(D_DLMTRACE, "Glimpsing inode " DFID "\n", PFID(fid)); if (lli->lli_has_smd) { - struct cl_lock *lock = ccc_env_lock(env); + struct cl_lock *lock = vvp_env_lock(env); struct cl_lock_descr *descr = &lock->cll_descr; /* NOTE: this looks like DLM lock request, but it may @@ -163,7 +163,7 @@ static int cl_io_get(struct inode *inode, struct lu_env **envout, if (S_ISREG(inode->i_mode)) { env = cl_env_get(refcheck); if (!IS_ERR(env)) { - io = ccc_env_thread_io(env); + io = vvp_env_thread_io(env); io->ci_obj = clob; *envout = env; *ioout = io; @@ -238,7 +238,7 @@ int cl_local_size(struct inode *inode) if (result > 0) { result = io->ci_result; } else if (result == 0) { - struct cl_lock *lock = ccc_env_lock(env); + struct cl_lock *lock = vvp_env_lock(env); lock->cll_descr = whole_file; lock->cll_descr.cld_enq_flags = CEF_PEEK; diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index d28546a..5b523e33 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -65,49 +65,12 @@ * ccc_ prefix stands for "Common Client Code". */ -static struct kmem_cache *ccc_thread_kmem; - -static struct lu_kmem_descr ccc_caches[] = { - { - .ckd_cache = &ccc_thread_kmem, - .ckd_name = "ccc_thread_kmem", - .ckd_size = sizeof(struct ccc_thread_info), - }, - { - .ckd_cache = NULL - } -}; - /***************************************************************************** * * Vvp device and device type functions. * */ -void *ccc_key_init(const struct lu_context *ctx, struct lu_context_key *key) -{ - struct ccc_thread_info *info; - - info = kmem_cache_zalloc(ccc_thread_kmem, GFP_NOFS); - if (!info) - info = ERR_PTR(-ENOMEM); - return info; -} - -void ccc_key_fini(const struct lu_context *ctx, - struct lu_context_key *key, void *data) -{ - struct ccc_thread_info *info = data; - - kmem_cache_free(ccc_thread_kmem, info); -} - -struct lu_context_key ccc_key = { - .lct_tags = LCT_CL_THREAD, - .lct_init = ccc_key_init, - .lct_fini = ccc_key_fini -}; - /** * An `emergency' environment used by ccc_inode_fini() when cl_env_get() * fails. Access to this environment is serialized by ccc_inode_fini_guard @@ -126,13 +89,9 @@ int ccc_global_init(struct lu_device_type *device_type) { int result; - result = lu_kmem_init(ccc_caches); - if (result) - return result; - result = lu_device_type_init(device_type); if (result) - goto out_kmem; + return result; ccc_inode_fini_env = cl_env_alloc(&dummy_refcheck, LCT_REMEMBER | LCT_NOREF); @@ -145,8 +104,6 @@ int ccc_global_init(struct lu_device_type *device_type) return 0; out_device: lu_device_type_fini(device_type); -out_kmem: - lu_kmem_fini(ccc_caches); return result; } @@ -157,7 +114,6 @@ void ccc_global_fini(struct lu_device_type *device_type) ccc_inode_fini_env = NULL; } lu_device_type_fini(device_type); - lu_kmem_fini(ccc_caches); } int cl_setattr_ost(struct inode *inode, const struct iattr *attr) @@ -171,7 +127,7 @@ int cl_setattr_ost(struct inode *inode, const struct iattr *attr) if (IS_ERR(env)) return PTR_ERR(env); - io = ccc_env_thread_io(env); + io = vvp_env_thread_io(env); io->ci_obj = ll_i2info(inode)->lli_clob; io->u.ci_setattr.sa_attr.lvb_atime = LTIME_S(attr->ia_atime); diff --git a/drivers/staging/lustre/lustre/llite/lcommon_misc.c b/drivers/staging/lustre/lustre/llite/lcommon_misc.c index 5e3e43f..12f3e71 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_misc.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_misc.c @@ -140,7 +140,7 @@ int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, if (IS_ERR(env)) return PTR_ERR(env); - io = ccc_env_thread_io(env); + io = vvp_env_thread_io(env); io->ci_obj = obj; io->ci_ignore_layout = 1; @@ -154,7 +154,7 @@ int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, return rc; } - lock = ccc_env_lock(env); + lock = vvp_env_lock(env); descr = &lock->cll_descr; descr->cld_obj = obj; descr->cld_start = 0; diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c index a7693c5..83d7006 100644 --- a/drivers/staging/lustre/lustre/llite/llite_mmap.c +++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c @@ -123,7 +123,7 @@ ll_fault_io_init(struct vm_area_struct *vma, struct lu_env **env_ret, *env_ret = env; - io = ccc_env_thread_io(env); + io = vvp_env_thread_io(env); io->ci_obj = ll_i2info(inode)->lli_clob; LASSERT(io->ci_obj); diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index f9bc3e4..7d5dd38 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -524,7 +524,7 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io, { struct vvp_io *vio = vvp_env_io(env); struct ll_thread_info *lti = ll_env_info(env); - struct cl_attr *attr = ccc_env_thread_attr(env); + struct cl_attr *attr = vvp_env_thread_attr(env); unsigned long start = 0, end = 0, reserved; unsigned long ra_end, len, mlen = 0; struct inode *inode; @@ -999,7 +999,7 @@ int ll_writepage(struct page *vmpage, struct writeback_control *wbc) clob = ll_i2info(inode)->lli_clob; LASSERT(clob); - io = ccc_env_thread_io(env); + io = vvp_env_thread_io(env); io->ci_obj = clob; io->ci_ignore_layout = 1; result = cl_io_init(env, io, CIT_MISC, clob); diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index 106473e..65baeeb 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -455,7 +455,7 @@ out: static int ll_prepare_partial_page(const struct lu_env *env, struct cl_io *io, struct cl_page *pg) { - struct cl_attr *attr = ccc_env_thread_attr(env); + struct cl_attr *attr = vvp_env_thread_attr(env); struct cl_object *obj = io->ci_obj; struct vvp_page *vpg = cl_object_page_slice(obj, pg); loff_t offset = cl_offset(obj, vvp_index(vpg)); diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 2278433..b33cd35 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -62,6 +62,8 @@ struct kmem_cache *vvp_lock_kmem; struct kmem_cache *vvp_object_kmem; struct kmem_cache *vvp_req_kmem; static struct kmem_cache *vvp_session_kmem; +static struct kmem_cache *vvp_thread_kmem; + static struct lu_kmem_descr vvp_caches[] = { { .ckd_cache = &ll_thread_kmem, @@ -89,6 +91,11 @@ static struct lu_kmem_descr vvp_caches[] = { .ckd_size = sizeof(struct vvp_session) }, { + .ckd_cache = &vvp_thread_kmem, + .ckd_name = "vvp_thread_kmem", + .ckd_size = sizeof(struct vvp_thread_info), + }, + { .ckd_cache = NULL } }; @@ -143,8 +150,33 @@ struct lu_context_key vvp_session_key = { .lct_fini = vvp_session_key_fini }; +void *vvp_thread_key_init(const struct lu_context *ctx, + struct lu_context_key *key) +{ + struct vvp_thread_info *vti; + + vti = kmem_cache_zalloc(vvp_thread_kmem, GFP_NOFS); + if (!vti) + vti = ERR_PTR(-ENOMEM); + return vti; +} + +void vvp_thread_key_fini(const struct lu_context *ctx, + struct lu_context_key *key, void *data) +{ + struct vvp_thread_info *vti = data; + + kmem_cache_free(vvp_thread_kmem, vti); +} + +struct lu_context_key vvp_thread_key = { + .lct_tags = LCT_CL_THREAD, + .lct_init = vvp_thread_key_init, + .lct_fini = vvp_thread_key_fini +}; + /* type constructor/destructor: vvp_type_{init,fini,start,stop}(). */ -LU_TYPE_INIT_FINI(vvp, &ccc_key, &ll_thread_key, &vvp_session_key); +LU_TYPE_INIT_FINI(vvp, &vvp_thread_key, &ll_thread_key, &vvp_session_key); static const struct lu_device_operations vvp_lu_ops = { .ldo_object_alloc = vvp_object_alloc diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 4740ff5..0e15202 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -164,50 +164,50 @@ struct vvp_io { bool vui_ra_valid; }; -extern struct lu_context_key ccc_key; extern struct lu_context_key vvp_session_key; +extern struct lu_context_key vvp_thread_key; extern struct kmem_cache *vvp_lock_kmem; extern struct kmem_cache *vvp_object_kmem; extern struct kmem_cache *vvp_req_kmem; -struct ccc_thread_info { - struct cl_lock cti_lock; - struct cl_lock_descr cti_descr; - struct cl_io cti_io; - struct cl_attr cti_attr; +struct vvp_thread_info { + struct cl_lock vti_lock; + struct cl_lock_descr vti_descr; + struct cl_io vti_io; + struct cl_attr vti_attr; }; -static inline struct ccc_thread_info *ccc_env_info(const struct lu_env *env) +static inline struct vvp_thread_info *vvp_env_info(const struct lu_env *env) { - struct ccc_thread_info *info; + struct vvp_thread_info *vti; - info = lu_context_key_get(&env->le_ctx, &ccc_key); - LASSERT(info); + vti = lu_context_key_get(&env->le_ctx, &vvp_thread_key); + LASSERT(vti); - return info; + return vti; } -static inline struct cl_lock *ccc_env_lock(const struct lu_env *env) +static inline struct cl_lock *vvp_env_lock(const struct lu_env *env) { - struct cl_lock *lock = &ccc_env_info(env)->cti_lock; + struct cl_lock *lock = &vvp_env_info(env)->vti_lock; memset(lock, 0, sizeof(*lock)); return lock; } -static inline struct cl_attr *ccc_env_thread_attr(const struct lu_env *env) +static inline struct cl_attr *vvp_env_thread_attr(const struct lu_env *env) { - struct cl_attr *attr = &ccc_env_info(env)->cti_attr; + struct cl_attr *attr = &vvp_env_info(env)->vti_attr; memset(attr, 0, sizeof(*attr)); return attr; } -static inline struct cl_io *ccc_env_thread_io(const struct lu_env *env) +static inline struct cl_io *vvp_env_thread_io(const struct lu_env *env) { - struct cl_io *io = &ccc_env_info(env)->cti_io; + struct cl_io *io = &vvp_env_info(env)->vti_io; memset(io, 0, sizeof(*io)); diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 18bc71b..366ac1c 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -135,7 +135,7 @@ static int vvp_prep_size(const struct lu_env *env, struct cl_object *obj, struct cl_io *io, loff_t start, size_t count, int *exceed) { - struct cl_attr *attr = ccc_env_thread_attr(env); + struct cl_attr *attr = vvp_env_thread_attr(env); struct inode *inode = vvp_object_inode(obj); loff_t pos = start + count - 1; loff_t kms; @@ -382,10 +382,10 @@ static enum cl_lock_mode vvp_mode_from_vma(struct vm_area_struct *vma) static int vvp_mmap_locks(const struct lu_env *env, struct vvp_io *vio, struct cl_io *io) { - struct ccc_thread_info *cti = ccc_env_info(env); + struct vvp_thread_info *cti = vvp_env_info(env); struct mm_struct *mm = current->mm; struct vm_area_struct *vma; - struct cl_lock_descr *descr = &cti->cti_descr; + struct cl_lock_descr *descr = &cti->vti_descr; ldlm_policy_data_t policy; unsigned long addr; ssize_t count; @@ -621,7 +621,7 @@ static int vvp_io_setattr_time(const struct lu_env *env, { struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; - struct cl_attr *attr = ccc_env_thread_attr(env); + struct cl_attr *attr = vvp_env_thread_attr(env); int result; unsigned valid = CAT_CTIME; -- cgit v0.10.2 From a37bec74c4aa12849c0e4733c86d9377ad15e58a Mon Sep 17 00:00:00 2001 From: John Hammond Date: Wed, 30 Mar 2016 19:48:58 -0400 Subject: staging/lustre/llite: Remove ccc_global_{init, fini}() Merge their contents into vvp_global_{init,fini}() and {init,exit}_lustre_lite(). Rename ccc_inode_fini_* to cl_inode_fini_*. Signed-off-by: John L. Hammond Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/13714 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Bobi Jam Reviewed-by: James Simmons Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 5b523e33..164737a 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -72,49 +72,18 @@ */ /** - * An `emergency' environment used by ccc_inode_fini() when cl_env_get() - * fails. Access to this environment is serialized by ccc_inode_fini_guard + * An `emergency' environment used by cl_inode_fini() when cl_env_get() + * fails. Access to this environment is serialized by cl_inode_fini_guard * mutex. */ -static struct lu_env *ccc_inode_fini_env; +struct lu_env *cl_inode_fini_env; +int cl_inode_fini_refcheck; /** * A mutex serializing calls to slp_inode_fini() under extreme memory * pressure, when environments cannot be allocated. */ -static DEFINE_MUTEX(ccc_inode_fini_guard); -static int dummy_refcheck; - -int ccc_global_init(struct lu_device_type *device_type) -{ - int result; - - result = lu_device_type_init(device_type); - if (result) - return result; - - ccc_inode_fini_env = cl_env_alloc(&dummy_refcheck, - LCT_REMEMBER | LCT_NOREF); - if (IS_ERR(ccc_inode_fini_env)) { - result = PTR_ERR(ccc_inode_fini_env); - goto out_device; - } - - ccc_inode_fini_env->le_ctx.lc_cookie = 0x4; - return 0; -out_device: - lu_device_type_fini(device_type); - return result; -} - -void ccc_global_fini(struct lu_device_type *device_type) -{ - if (ccc_inode_fini_env) { - cl_env_put(ccc_inode_fini_env, &dummy_refcheck); - ccc_inode_fini_env = NULL; - } - lu_device_type_fini(device_type); -} +static DEFINE_MUTEX(cl_inode_fini_guard); int cl_setattr_ost(struct inode *inode, const struct iattr *attr) { @@ -286,10 +255,10 @@ void cl_inode_fini(struct inode *inode) env = cl_env_get(&refcheck); emergency = IS_ERR(env); if (emergency) { - mutex_lock(&ccc_inode_fini_guard); - LASSERT(ccc_inode_fini_env); - cl_env_implant(ccc_inode_fini_env, &refcheck); - env = ccc_inode_fini_env; + mutex_lock(&cl_inode_fini_guard); + LASSERT(cl_inode_fini_env); + cl_env_implant(cl_inode_fini_env, &refcheck); + env = cl_inode_fini_env; } /* * cl_object cache is a slave to inode cache (which, in turn @@ -301,8 +270,8 @@ void cl_inode_fini(struct inode *inode) cl_object_put_last(env, clob); lli->lli_clob = NULL; if (emergency) { - cl_env_unplant(ccc_inode_fini_env, &refcheck); - mutex_unlock(&ccc_inode_fini_guard); + cl_env_unplant(cl_inode_fini_env, &refcheck); + mutex_unlock(&cl_inode_fini_guard); } else { cl_env_put(env, &refcheck); } diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index a6ee2fe..993cee8 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -984,9 +984,6 @@ void free_rmtperm_hash(struct hlist_head *hash); int ll_update_remote_perm(struct inode *inode, struct mdt_remote_perm *perm); int lustre_check_remote_perm(struct inode *inode, int mask); -/* llite/llite_cl.c */ -extern struct lu_device_type vvp_device_type; - /** * Common IO arguments for various VFS I/O interfaces. */ @@ -1371,4 +1368,8 @@ void ll_xattr_fini(void); int ll_page_sync_io(const struct lu_env *env, struct cl_io *io, struct cl_page *page, enum cl_req_type crt); +/* lcommon_cl.c */ +extern struct lu_env *cl_inode_fini_env; +extern int cl_inode_fini_refcheck; + #endif /* LLITE_INTERNAL_H */ diff --git a/drivers/staging/lustre/lustre/llite/super25.c b/drivers/staging/lustre/lustre/llite/super25.c index 61856d3..415750b 100644 --- a/drivers/staging/lustre/lustre/llite/super25.c +++ b/drivers/staging/lustre/lustre/llite/super25.c @@ -164,9 +164,18 @@ static int __init lustre_init(void) if (rc != 0) goto out_sysfs; + cl_inode_fini_env = cl_env_alloc(&cl_inode_fini_refcheck, + LCT_REMEMBER | LCT_NOREF); + if (IS_ERR(cl_inode_fini_env)) { + rc = PTR_ERR(cl_inode_fini_env); + goto out_vvp; + } + + cl_inode_fini_env->le_ctx.lc_cookie = 0x4; + rc = ll_xattr_init(); if (rc != 0) - goto out_vvp; + goto out_inode_fini_env; lustre_register_client_fill_super(ll_fill_super); lustre_register_kill_super_cb(ll_kill_super); @@ -174,6 +183,8 @@ static int __init lustre_init(void) return 0; +out_inode_fini_env: + cl_env_put(cl_inode_fini_env, &cl_inode_fini_refcheck); out_vvp: vvp_global_fini(); out_sysfs: @@ -198,6 +209,7 @@ static void __exit lustre_exit(void) kset_unregister(llite_kset); ll_xattr_fini(); + cl_env_put(cl_inode_fini_env, &cl_inode_fini_refcheck); vvp_global_fini(); kmem_cache_destroy(ll_inode_cachep); diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index b33cd35..e35c1a1 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -293,20 +293,27 @@ struct lu_device_type vvp_device_type = { */ int vvp_global_init(void) { - int result; + int rc; - result = lu_kmem_init(vvp_caches); - if (result == 0) { - result = ccc_global_init(&vvp_device_type); - if (result != 0) - lu_kmem_fini(vvp_caches); - } - return result; + rc = lu_kmem_init(vvp_caches); + if (rc != 0) + return rc; + + rc = lu_device_type_init(&vvp_device_type); + if (rc != 0) + goto out_kmem; + + return 0; + +out_kmem: + lu_kmem_fini(vvp_caches); + + return rc; } void vvp_global_fini(void) { - ccc_global_fini(&vvp_device_type); + lu_device_type_fini(&vvp_device_type); lu_kmem_fini(vvp_caches); } diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 0e15202..fe29fb5 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -164,6 +164,8 @@ struct vvp_io { bool vui_ra_valid; }; +extern struct lu_device_type vvp_device_type; + extern struct lu_context_key vvp_session_key; extern struct lu_context_key vvp_thread_key; @@ -324,8 +326,6 @@ void ccc_key_fini(const struct lu_context *ctx, struct lu_context_key *key, void *data); void ccc_umount(const struct lu_env *env, struct cl_device *dev); -int ccc_global_init(struct lu_device_type *device_type); -void ccc_global_fini(struct lu_device_type *device_type); static inline struct lu_device *vvp2lu_dev(struct vvp_device *vdv) { -- cgit v0.10.2 From 0097dcabe6d8f91d85f59b442cd162c02b8827f4 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Wed, 30 Mar 2016 19:48:59 -0400 Subject: staging/lustre/llite: Move ll_dirent_type_get and make it static ll_dirent_type_get is only used in one place in llite/dir.c, so move it there. Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 2ca4b0e..b085fb4 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -469,6 +469,28 @@ fail: goto out_unlock; } +/** + * return IF_* type for given lu_dirent entry. + * IF_* flag shld be converted to particular OS file type in + * platform llite module. + */ +static __u16 ll_dirent_type_get(struct lu_dirent *ent) +{ + __u16 type = 0; + struct luda_type *lt; + int len = 0; + + if (le32_to_cpu(ent->lde_attrs) & LUDA_TYPE) { + const unsigned int align = sizeof(struct luda_type) - 1; + + len = le16_to_cpu(ent->lde_namelen); + len = (len + align) & ~align; + lt = (void *)ent->lde_name + len; + type = IFTODT(le16_to_cpu(lt->lt_type)); + } + return type; +} + int ll_dir_read(struct inode *inode, struct dir_context *ctx) { struct ll_inode_info *info = ll_i2info(inode); diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c index 164737a..6c00715 100644 --- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c +++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c @@ -280,28 +280,6 @@ void cl_inode_fini(struct inode *inode) } /** - * return IF_* type for given lu_dirent entry. - * IF_* flag shld be converted to particular OS file type in - * platform llite module. - */ -__u16 ll_dirent_type_get(struct lu_dirent *ent) -{ - __u16 type = 0; - struct luda_type *lt; - int len = 0; - - if (le32_to_cpu(ent->lde_attrs) & LUDA_TYPE) { - const unsigned int align = sizeof(struct luda_type) - 1; - - len = le16_to_cpu(ent->lde_namelen); - len = (len + align) & ~align; - lt = (void *)ent->lde_name + len; - type = IFTODT(le16_to_cpu(lt->lt_type)); - } - return type; -} - -/** * build inode number from passed @fid */ __u64 cl_fid_build_ino(const struct lu_fid *fid, int api32) diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index fe29fb5..06e2726 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -376,7 +376,6 @@ int cl_file_inode_init(struct inode *inode, struct lustre_md *md); void cl_inode_fini(struct inode *inode); int cl_local_size(struct inode *inode); -__u16 ll_dirent_type_get(struct lu_dirent *ent); __u64 cl_fid_build_ino(const struct lu_fid *fid, int api32); __u32 cl_fid_build_gen(const struct lu_fid *fid); -- cgit v0.10.2 From 5c5af0fce77e480930fbb17de458c327f405b965 Mon Sep 17 00:00:00 2001 From: John Hammond Date: Wed, 30 Mar 2016 19:49:00 -0400 Subject: staging/lustre/llite: Move several declarations to llite_internal.h Move several declarations between llite_internal.h and vvp_internal.h with the goal of reserving the latter header for functions that pertain to vvp_{device,object,page,...}. Signed-off-by: John L. Hammond Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/13714 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5971 Reviewed-by: Bobi Jam Reviewed-by: James Simmons Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 993cee8..ba24f09 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -663,6 +663,10 @@ static inline int ll_need_32bit_api(struct ll_sb_info *sbi) void ll_ras_enter(struct file *f); /* llite/lcommon_misc.c */ +int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp); +int cl_ocd_update(struct obd_device *host, + struct obd_device *watched, + enum obd_notify_event ev, void *owner, void *data); int cl_get_grouplock(struct cl_object *obj, unsigned long gid, int nonblock, struct ll_grouplock *cg); void cl_put_grouplock(struct ll_grouplock *cg); @@ -881,9 +885,6 @@ static inline struct vvp_io_args *ll_env_args(const struct lu_env *env, return via; } -int vvp_global_init(void); -void vvp_global_fini(void); - void ll_queue_done_writing(struct inode *inode, unsigned long flags); void ll_close_thread_shutdown(struct ll_close_queue *lcq); int ll_close_thread_start(struct ll_close_queue **lcq_ret); @@ -1089,6 +1090,22 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentry, int only_unplug); void ll_stop_statahead(struct inode *dir, void *key); +blkcnt_t dirty_cnt(struct inode *inode); + +int cl_glimpse_size0(struct inode *inode, int agl); +int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, + struct inode *inode, struct cl_object *clob, int agl); + +static inline int cl_glimpse_size(struct inode *inode) +{ + return cl_glimpse_size0(inode, 0); +} + +static inline int cl_agl(struct inode *inode) +{ + return cl_glimpse_size0(inode, 1); +} + static inline int ll_glimpse_size(struct inode *inode) { struct ll_inode_info *lli = ll_i2info(inode); @@ -1369,7 +1386,16 @@ int ll_page_sync_io(const struct lu_env *env, struct cl_io *io, struct cl_page *page, enum cl_req_type crt); /* lcommon_cl.c */ +int cl_setattr_ost(struct inode *inode, const struct iattr *attr); + extern struct lu_env *cl_inode_fini_env; extern int cl_inode_fini_refcheck; +int cl_file_inode_init(struct inode *inode, struct lustre_md *md); +void cl_inode_fini(struct inode *inode); +int cl_local_size(struct inode *inode); + +__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32); +__u32 cl_fid_build_gen(const struct lu_fid *fid); + #endif /* LLITE_INTERNAL_H */ diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index 06e2726..ce4aeca 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -53,25 +53,6 @@ struct obd_device; struct obd_export; struct page; -blkcnt_t dirty_cnt(struct inode *inode); - -int cl_glimpse_size0(struct inode *inode, int agl); -int cl_glimpse_lock(const struct lu_env *env, struct cl_io *io, - struct inode *inode, struct cl_object *clob, int agl); - -static inline int cl_glimpse_size(struct inode *inode) -{ - return cl_glimpse_size0(inode, 0); -} - -static inline int cl_agl(struct inode *inode) -{ - return cl_glimpse_size0(inode, 1); -} - -/** - * Locking policy for setattr. - */ enum ccc_setattr_lock_type { /** Locking is done by server */ SETATTR_NOLOCK, @@ -370,23 +351,9 @@ static inline struct vvp_lock *cl2vvp_lock(const struct cl_lock_slice *slice) return container_of(slice, struct vvp_lock, vlk_cl); } -int cl_setattr_ost(struct inode *inode, const struct iattr *attr); - -int cl_file_inode_init(struct inode *inode, struct lustre_md *md); -void cl_inode_fini(struct inode *inode); -int cl_local_size(struct inode *inode); - -__u64 cl_fid_build_ino(const struct lu_fid *fid, int api32); -__u32 cl_fid_build_gen(const struct lu_fid *fid); - # define CLOBINVRNT(env, clob, expr) \ ((void)sizeof(env), (void)sizeof(clob), (void)sizeof(!!(expr))) -int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp); -int cl_ocd_update(struct obd_device *host, - struct obd_device *watched, - enum obd_notify_event ev, void *owner, void *data); - /** * New interfaces to get and put lov_stripe_md from lov layer. This violates * layering because lov_stripe_md is supposed to be a private data in lov. @@ -415,6 +382,9 @@ struct lu_object *vvp_object_alloc(const struct lu_env *env, const struct lu_object_header *hdr, struct lu_device *dev); +int vvp_global_init(void); +void vvp_global_fini(void); + extern const struct file_operations vvp_dump_pgcache_file_ops; #endif /* VVP_INTERNAL_H */ -- cgit v0.10.2 From 047d41bd71c5553bdd5bda56edbc77b8cbc1ae87 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Wed, 30 Mar 2016 19:49:01 -0400 Subject: staging/lustre/llite: Remove unused vui_local_lock field vvp_io_setattr_lock is the only user that sets it, but it's never checked anywhere, so could go away. Also get rid of enum ccc_setattr_lock_type that becomes unused. Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h index ce4aeca..27b9b0a 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_internal.h +++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h @@ -53,15 +53,6 @@ struct obd_device; struct obd_export; struct page; -enum ccc_setattr_lock_type { - /** Locking is done by server */ - SETATTR_NOLOCK, - /** Extent lock is enqueued */ - SETATTR_EXTENT_LOCK, - /** Existing local extent lock is used */ - SETATTR_MATCH_LOCK -}; - /* specific architecture can implement only part of this list */ enum vvp_io_subtype { /** normal IO */ @@ -112,9 +103,6 @@ struct vvp_io { bool ft_flags_valid; } fault; struct { - enum ccc_setattr_lock_type vui_local_lock; - } setattr; - struct { struct pipe_inode_info *vui_pipe; unsigned int vui_flags; } splice; diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 366ac1c..aed7b8e 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -567,7 +567,6 @@ static int vvp_io_setattr_iter_init(const struct lu_env *env, static int vvp_io_setattr_lock(const struct lu_env *env, const struct cl_io_slice *ios) { - struct vvp_io *vio = vvp_env_io(env); struct cl_io *io = ios->cis_io; __u64 new_size; __u32 enqflags = 0; @@ -585,8 +584,6 @@ static int vvp_io_setattr_lock(const struct lu_env *env, new_size = 0; } - vio->u.setattr.vui_local_lock = SETATTR_EXTENT_LOCK; - return vvp_io_one_lock(env, io, enqflags, CLM_WRITE, new_size, OBD_OBJECT_EOF); } -- cgit v0.10.2 From 7d44333467a949b6ea4e21b5fb7618f97cc10ce0 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 30 Mar 2016 19:49:02 -0400 Subject: staging/lustre/ldlm: ELC picks locks in a safer policy Change the policy of ELC to pick locks that have no dirty pages, no page in writeback state, and no locked pages. Signed-off-by: Jinshan Xiong Reviewed-on: http://review.whamcloud.com/9175 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4300 Reviewed-by: Andreas Dilger Reviewed-by: Bobi Jam Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h index b1abdc2..9cade14 100644 --- a/drivers/staging/lustre/lustre/include/lustre_dlm.h +++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h @@ -270,7 +270,7 @@ struct ldlm_pool { struct completion pl_kobj_unregister; }; -typedef int (*ldlm_cancel_for_recovery)(struct ldlm_lock *lock); +typedef int (*ldlm_cancel_cbt)(struct ldlm_lock *lock); /** * LVB operations. @@ -447,8 +447,11 @@ struct ldlm_namespace { /** Limit of parallel AST RPC count. */ unsigned ns_max_parallel_ast; - /** Callback to cancel locks before replaying it during recovery. */ - ldlm_cancel_for_recovery ns_cancel_for_recovery; + /** + * Callback to check if a lock is good to be canceled by ELC or + * during recovery. + */ + ldlm_cancel_cbt ns_cancel; /** LDLM lock stats */ struct lprocfs_stats *ns_stats; @@ -480,9 +483,9 @@ static inline int ns_connect_lru_resize(struct ldlm_namespace *ns) } static inline void ns_register_cancel(struct ldlm_namespace *ns, - ldlm_cancel_for_recovery arg) + ldlm_cancel_cbt arg) { - ns->ns_cancel_for_recovery = arg; + ns->ns_cancel = arg; } struct ldlm_lock; diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index 42925ac..2f12194 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -1137,7 +1137,6 @@ static ldlm_policy_res_t ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns, int count) { ldlm_policy_res_t result = LDLM_POLICY_CANCEL_LOCK; - ldlm_cancel_for_recovery cb = ns->ns_cancel_for_recovery; /* don't check added & count since we want to process all locks * from unused list. @@ -1147,7 +1146,7 @@ static ldlm_policy_res_t ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns, switch (lock->l_resource->lr_type) { case LDLM_EXTENT: case LDLM_IBITS: - if (cb && cb(lock)) + if (ns->ns_cancel && ns->ns_cancel(lock) != 0) break; default: result = LDLM_POLICY_SKIP_LOCK; @@ -1197,8 +1196,13 @@ static ldlm_policy_res_t ldlm_cancel_lrur_policy(struct ldlm_namespace *ns, /* Stop when SLV is not yet come from server or lv is smaller than * it is. */ - return (slv == 0 || lv < slv) ? - LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK; + if (slv == 0 || lv < slv) + return LDLM_POLICY_KEEP_LOCK; + + if (ns->ns_cancel && ns->ns_cancel(lock) == 0) + return LDLM_POLICY_KEEP_LOCK; + + return LDLM_POLICY_CANCEL_LOCK; } /** @@ -1236,11 +1240,17 @@ static ldlm_policy_res_t ldlm_cancel_aged_policy(struct ldlm_namespace *ns, int unused, int added, int count) { - /* Stop LRU processing if young lock is found and we reach past count */ - return ((added >= count) && - time_before(cfs_time_current(), - cfs_time_add(lock->l_last_used, ns->ns_max_age))) ? - LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK; + if (added >= count) + return LDLM_POLICY_KEEP_LOCK; + + if (time_before(cfs_time_current(), + cfs_time_add(lock->l_last_used, ns->ns_max_age))) + return LDLM_POLICY_KEEP_LOCK; + + if (ns->ns_cancel && ns->ns_cancel(lock) == 0) + return LDLM_POLICY_KEEP_LOCK; + + return LDLM_POLICY_CANCEL_LOCK; } /** diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c index 55dd8ef..98b27f1 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_request.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c @@ -2249,7 +2249,7 @@ static struct obd_uuid *mdc_get_uuid(struct obd_export *exp) * recovery, non zero value will be return if the lock can be canceled, * or zero returned for not */ -static int mdc_cancel_for_recovery(struct ldlm_lock *lock) +static int mdc_cancel_weight(struct ldlm_lock *lock) { if (lock->l_resource->lr_type != LDLM_IBITS) return 0; @@ -2331,7 +2331,7 @@ static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg) sptlrpc_lprocfs_cliobd_attach(obd); ptlrpc_lprocfs_register_obd(obd); - ns_register_cancel(obd->obd_namespace, mdc_cancel_for_recovery); + ns_register_cancel(obd->obd_namespace, mdc_cancel_weight); obd->obd_namespace->ns_lvbo = &inode_lvbo; diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c index 68c5013..49dfe9f 100644 --- a/drivers/staging/lustre/lustre/osc/osc_lock.c +++ b/drivers/staging/lustre/lustre/osc/osc_lock.c @@ -635,7 +635,9 @@ static int weigh_cb(const struct lu_env *env, struct cl_io *io, { struct cl_page *page = ops->ops_cl.cpl_page; - if (cl_page_is_vmlocked(env, page)) { + if (cl_page_is_vmlocked(env, page) || + PageDirty(page->cp_vmpage) || PageWriteback(page->cp_vmpage) + ) { (*(unsigned long *)cbdata)++; return CLP_GANG_ABORT; } diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 368b997..a6dc517 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -2292,15 +2292,13 @@ no_match: if (*flags & LDLM_FL_TEST_LOCK) return -ENOLCK; if (intent) { - LIST_HEAD(cancels); - req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_LDLM_ENQUEUE_LVB); if (!req) return -ENOMEM; - rc = ldlm_prep_enqueue_req(exp, req, &cancels, 0); - if (rc) { + rc = ptlrpc_request_pack(req, LUSTRE_DLM_VERSION, LDLM_ENQUEUE); + if (rc < 0) { ptlrpc_request_free(req); return rc; } @@ -3110,17 +3108,14 @@ static int osc_import_event(struct obd_device *obd, * \retval zero the lock can't be canceled * \retval other ok to cancel */ -static int osc_cancel_for_recovery(struct ldlm_lock *lock) +static int osc_cancel_weight(struct ldlm_lock *lock) { /* - * Cancel all unused extent lock in granted mode LCK_PR or LCK_CR. - * - * XXX as a future improvement, we can also cancel unused write lock - * if it doesn't have dirty data and active mmaps. + * Cancel all unused and granted extent lock. */ if (lock->l_resource->lr_type == LDLM_EXTENT && - (lock->l_granted_mode == LCK_PR || - lock->l_granted_mode == LCK_CR) && osc_ldlm_weigh_ast(lock) == 0) + lock->l_granted_mode == lock->l_req_mode && + osc_ldlm_weigh_ast(lock) == 0) return 1; return 0; @@ -3197,7 +3192,7 @@ int osc_setup(struct obd_device *obd, struct lustre_cfg *lcfg) } INIT_LIST_HEAD(&cli->cl_grant_shrink_list); - ns_register_cancel(obd->obd_namespace, osc_cancel_for_recovery); + ns_register_cancel(obd->obd_namespace, osc_cancel_weight); return rc; out_ptlrpcd_work: -- cgit v0.10.2 From 7b2d26b0af8bcc44fb3a279f28f380010890c4a4 Mon Sep 17 00:00:00 2001 From: Niu Yawei Date: Wed, 30 Mar 2016 19:49:03 -0400 Subject: staging/lustre/ldlm: revert changes to ldlm_cancel_aged_policy() The changes to ldlm_cancel_aged_policy() introduced from LU-4300 was incorrect. This patch revert this part of changes. Signed-off-by: Niu Yawei Reviewed-on: http://review.whamcloud.com/12448 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5727 Reviewed-by: Bobi Jam Reviewed-by: Jinshan Xiong Reviewed-by: Andreas Dilger Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index 2f12194..48e9828 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -1240,10 +1240,8 @@ static ldlm_policy_res_t ldlm_cancel_aged_policy(struct ldlm_namespace *ns, int unused, int added, int count) { - if (added >= count) - return LDLM_POLICY_KEEP_LOCK; - - if (time_before(cfs_time_current(), + if ((added >= count) && + time_before(cfs_time_current(), cfs_time_add(lock->l_last_used, ns->ns_max_age))) return LDLM_POLICY_KEEP_LOCK; -- cgit v0.10.2 From 2640256e388f8f5dd2f9fdbb034b3c0332e10e41 Mon Sep 17 00:00:00 2001 From: Vitaly Fertman Date: Wed, 30 Mar 2016 19:49:04 -0400 Subject: staging/lustre/ldlm: restore the ELC for enqueue after LU-4300 enqueue does not ELC anymore, however if enqueue is agressive (ls -la of a large dir) we may exceed lru-resize limit quickly because LRUR shrinker and recalc are called not so often. ELC is to be restored in enqueue. ELC also should check for the lock weight, in addition to LRUR. ELC can also keep "skipped" locks, i.e. once checked for the weight and left in the lru - let LRUR take care about them later. LRUR is to be left untouched, no weight logic, otherwise LU-5727 appears and OPEN locks do not get canceled. Xyratex-bug-id: MRP-2550 Signed-off-by: Vitaly Fertman Reviewed-on: http://review.whamcloud.com/14342 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6390 Reviewed-by: Jinshan Xiong Reviewed-by: Niu Yawei Reviewed-by: Andreas Dilger Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h index e21373e..e31d84a 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h @@ -95,9 +95,10 @@ enum { LDLM_CANCEL_PASSED = 1 << 1, /* Cancel passed number of locks. */ LDLM_CANCEL_SHRINK = 1 << 2, /* Cancel locks from shrinker. */ LDLM_CANCEL_LRUR = 1 << 3, /* Cancel locks from lru resize. */ - LDLM_CANCEL_NO_WAIT = 1 << 4 /* Cancel locks w/o blocking (neither - * sending nor waiting for any rpcs) - */ + LDLM_CANCEL_NO_WAIT = 1 << 4, /* Cancel locks w/o blocking (neither + * sending nor waiting for any rpcs) + */ + LDLM_CANCEL_LRUR_NO_WAIT = 1 << 5, /* LRUR + NO_WAIT */ }; int ldlm_cancel_lru(struct ldlm_namespace *ns, int nr, diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index 48e9828..9aa4c2d 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -601,7 +601,7 @@ int ldlm_prep_elc_req(struct obd_export *exp, struct ptlrpc_request *req, avail = ldlm_capsule_handles_avail(pill, RCL_CLIENT, canceloff); flags = ns_connect_lru_resize(ns) ? - LDLM_CANCEL_LRUR : LDLM_CANCEL_AGED; + LDLM_CANCEL_LRUR_NO_WAIT : LDLM_CANCEL_AGED; to_free = !ns_connect_lru_resize(ns) && opc == LDLM_ENQUEUE ? 1 : 0; @@ -1146,7 +1146,7 @@ static ldlm_policy_res_t ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns, switch (lock->l_resource->lr_type) { case LDLM_EXTENT: case LDLM_IBITS: - if (ns->ns_cancel && ns->ns_cancel(lock) != 0) + if (ns->ns_cancel && ns->ns_cancel(lock) != 0) break; default: result = LDLM_POLICY_SKIP_LOCK; @@ -1251,6 +1251,21 @@ static ldlm_policy_res_t ldlm_cancel_aged_policy(struct ldlm_namespace *ns, return LDLM_POLICY_CANCEL_LOCK; } +static ldlm_policy_res_t +ldlm_cancel_lrur_no_wait_policy(struct ldlm_namespace *ns, + struct ldlm_lock *lock, + int unused, int added, + int count) +{ + ldlm_policy_res_t result; + + result = ldlm_cancel_lrur_policy(ns, lock, unused, added, count); + if (result == LDLM_POLICY_KEEP_LOCK) + return result; + + return ldlm_cancel_no_wait_policy(ns, lock, unused, added, count); +} + /** * Callback function for default policy. Makes decision whether to keep \a lock * in LRU for current LRU size \a unused, added in current scan \a added and @@ -1290,6 +1305,8 @@ ldlm_cancel_lru_policy(struct ldlm_namespace *ns, int flags) return ldlm_cancel_lrur_policy; else if (flags & LDLM_CANCEL_PASSED) return ldlm_cancel_passed_policy; + else if (flags & LDLM_CANCEL_LRUR_NO_WAIT) + return ldlm_cancel_lrur_no_wait_policy; } else { if (flags & LDLM_CANCEL_AGED) return ldlm_cancel_aged_policy; @@ -1338,6 +1355,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, ldlm_cancel_lru_policy_t pf; struct ldlm_lock *lock, *next; int added = 0, unused, remained; + int no_wait = flags & (LDLM_CANCEL_NO_WAIT | LDLM_CANCEL_LRUR_NO_WAIT); spin_lock(&ns->ns_lock); unused = ns->ns_nr_unused; @@ -1365,8 +1383,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, /* No locks which got blocking requests. */ LASSERT(!(lock->l_flags & LDLM_FL_BL_AST)); - if (flags & LDLM_CANCEL_NO_WAIT && - lock->l_flags & LDLM_FL_SKIPPED) + if (no_wait && lock->l_flags & LDLM_FL_SKIPPED) /* already processed */ continue; diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index a6dc517..5b9f72c 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -2297,8 +2297,8 @@ no_match: if (!req) return -ENOMEM; - rc = ptlrpc_request_pack(req, LUSTRE_DLM_VERSION, LDLM_ENQUEUE); - if (rc < 0) { + rc = ldlm_prep_enqueue_req(exp, req, NULL, 0); + if (rc) { ptlrpc_request_free(req); return rc; } -- cgit v0.10.2 From e9570b490ba209220b43530ca250060035d6bcba Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Wed, 30 Mar 2016 19:49:05 -0400 Subject: staging/lustre: Fix spacing style before open parenthesis This fixes the remaining occurences of checkpatch warnings of the form of WARNING: space prohibited between function name and open parenthesis '(' Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h index b5088b1..fcb9db6 100644 --- a/drivers/staging/lustre/lustre/include/lu_object.h +++ b/drivers/staging/lustre/lustre/include/lu_object.h @@ -656,21 +656,21 @@ static inline struct seq_server_site *lu_site2seq(const struct lu_site *s) * @{ */ -int lu_site_init (struct lu_site *s, struct lu_device *d); -void lu_site_fini (struct lu_site *s); -int lu_site_init_finish (struct lu_site *s); -void lu_stack_fini (const struct lu_env *env, struct lu_device *top); -void lu_device_get (struct lu_device *d); -void lu_device_put (struct lu_device *d); -int lu_device_init (struct lu_device *d, struct lu_device_type *t); -void lu_device_fini (struct lu_device *d); -int lu_object_header_init(struct lu_object_header *h); +int lu_site_init(struct lu_site *s, struct lu_device *d); +void lu_site_fini(struct lu_site *s); +int lu_site_init_finish(struct lu_site *s); +void lu_stack_fini(const struct lu_env *env, struct lu_device *top); +void lu_device_get(struct lu_device *d); +void lu_device_put(struct lu_device *d); +int lu_device_init(struct lu_device *d, struct lu_device_type *t); +void lu_device_fini(struct lu_device *d); +int lu_object_header_init(struct lu_object_header *h); void lu_object_header_fini(struct lu_object_header *h); -int lu_object_init (struct lu_object *o, - struct lu_object_header *h, struct lu_device *d); -void lu_object_fini (struct lu_object *o); -void lu_object_add_top (struct lu_object_header *h, struct lu_object *o); -void lu_object_add (struct lu_object *before, struct lu_object *o); +int lu_object_init(struct lu_object *o, + struct lu_object_header *h, struct lu_device *d); +void lu_object_fini(struct lu_object *o); +void lu_object_add_top(struct lu_object_header *h, struct lu_object *o); +void lu_object_add(struct lu_object *before, struct lu_object *o); /** * Helpers to initialize and finalize device types. @@ -1118,7 +1118,7 @@ struct lu_context_key { { \ type *value; \ \ - CLASSERT(PAGE_CACHE_SIZE >= sizeof (*value)); \ + CLASSERT(PAGE_CACHE_SIZE >= sizeof(*value)); \ \ value = kzalloc(sizeof(*value), GFP_NOFS); \ if (!value) \ @@ -1154,12 +1154,12 @@ do { \ (key)->lct_owner = THIS_MODULE; \ } while (0) -int lu_context_key_register(struct lu_context_key *key); -void lu_context_key_degister(struct lu_context_key *key); -void *lu_context_key_get (const struct lu_context *ctx, - const struct lu_context_key *key); -void lu_context_key_quiesce (struct lu_context_key *key); -void lu_context_key_revive (struct lu_context_key *key); +int lu_context_key_register(struct lu_context_key *key); +void lu_context_key_degister(struct lu_context_key *key); +void *lu_context_key_get(const struct lu_context *ctx, + const struct lu_context_key *key); +void lu_context_key_quiesce(struct lu_context_key *key); +void lu_context_key_revive(struct lu_context_key *key); /* * LU_KEY_INIT_GENERIC() has to be a macro to correctly determine an @@ -1216,21 +1216,21 @@ void lu_context_key_revive (struct lu_context_key *key); LU_TYPE_START(mod, __VA_ARGS__); \ LU_TYPE_STOP(mod, __VA_ARGS__) -int lu_context_init (struct lu_context *ctx, __u32 tags); -void lu_context_fini (struct lu_context *ctx); -void lu_context_enter (struct lu_context *ctx); -void lu_context_exit (struct lu_context *ctx); -int lu_context_refill(struct lu_context *ctx); +int lu_context_init(struct lu_context *ctx, __u32 tags); +void lu_context_fini(struct lu_context *ctx); +void lu_context_enter(struct lu_context *ctx); +void lu_context_exit(struct lu_context *ctx); +int lu_context_refill(struct lu_context *ctx); /* * Helper functions to operate on multiple keys. These are used by the default * device type operations, defined by LU_TYPE_INIT_FINI(). */ -int lu_context_key_register_many(struct lu_context_key *k, ...); +int lu_context_key_register_many(struct lu_context_key *k, ...); void lu_context_key_degister_many(struct lu_context_key *k, ...); -void lu_context_key_revive_many (struct lu_context_key *k, ...); -void lu_context_key_quiesce_many (struct lu_context_key *k, ...); +void lu_context_key_revive_many(struct lu_context_key *k, ...); +void lu_context_key_quiesce_many(struct lu_context_key *k, ...); /** * Environment. @@ -1246,9 +1246,9 @@ struct lu_env { struct lu_context *le_ses; }; -int lu_env_init (struct lu_env *env, __u32 tags); -void lu_env_fini (struct lu_env *env); -int lu_env_refill(struct lu_env *env); +int lu_env_init(struct lu_env *env, __u32 tags); +void lu_env_fini(struct lu_env *env); +int lu_env_refill(struct lu_env *env); /** @} lu_context */ diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h index 4318511..12e6718 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h @@ -3306,7 +3306,7 @@ struct getinfo_fid2path { char gf_path[0]; } __packed; -void lustre_swab_fid2path (struct getinfo_fid2path *gf); +void lustre_swab_fid2path(struct getinfo_fid2path *gf); enum { LAYOUT_INTENT_ACCESS = 0, diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h index 276906e..19f2271 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h @@ -193,37 +193,37 @@ struct ost_id { * *INFO - set/get lov_user_mds_data */ /* see for ioctl numberss 101-150 */ -#define LL_IOC_GETFLAGS _IOR ('f', 151, long) -#define LL_IOC_SETFLAGS _IOW ('f', 152, long) -#define LL_IOC_CLRFLAGS _IOW ('f', 153, long) +#define LL_IOC_GETFLAGS _IOR('f', 151, long) +#define LL_IOC_SETFLAGS _IOW('f', 152, long) +#define LL_IOC_CLRFLAGS _IOW('f', 153, long) /* LL_IOC_LOV_SETSTRIPE: See also OBD_IOC_LOV_SETSTRIPE */ -#define LL_IOC_LOV_SETSTRIPE _IOW ('f', 154, long) +#define LL_IOC_LOV_SETSTRIPE _IOW('f', 154, long) /* LL_IOC_LOV_GETSTRIPE: See also OBD_IOC_LOV_GETSTRIPE */ -#define LL_IOC_LOV_GETSTRIPE _IOW ('f', 155, long) +#define LL_IOC_LOV_GETSTRIPE _IOW('f', 155, long) /* LL_IOC_LOV_SETEA: See also OBD_IOC_LOV_SETEA */ -#define LL_IOC_LOV_SETEA _IOW ('f', 156, long) -#define LL_IOC_RECREATE_OBJ _IOW ('f', 157, long) -#define LL_IOC_RECREATE_FID _IOW ('f', 157, struct lu_fid) -#define LL_IOC_GROUP_LOCK _IOW ('f', 158, long) -#define LL_IOC_GROUP_UNLOCK _IOW ('f', 159, long) +#define LL_IOC_LOV_SETEA _IOW('f', 156, long) +#define LL_IOC_RECREATE_OBJ _IOW('f', 157, long) +#define LL_IOC_RECREATE_FID _IOW('f', 157, struct lu_fid) +#define LL_IOC_GROUP_LOCK _IOW('f', 158, long) +#define LL_IOC_GROUP_UNLOCK _IOW('f', 159, long) /* LL_IOC_QUOTACHECK: See also OBD_IOC_QUOTACHECK */ -#define LL_IOC_QUOTACHECK _IOW ('f', 160, int) +#define LL_IOC_QUOTACHECK _IOW('f', 160, int) /* LL_IOC_POLL_QUOTACHECK: See also OBD_IOC_POLL_QUOTACHECK */ -#define LL_IOC_POLL_QUOTACHECK _IOR ('f', 161, struct if_quotacheck *) +#define LL_IOC_POLL_QUOTACHECK _IOR('f', 161, struct if_quotacheck *) /* LL_IOC_QUOTACTL: See also OBD_IOC_QUOTACTL */ #define LL_IOC_QUOTACTL _IOWR('f', 162, struct if_quotactl) #define IOC_OBD_STATFS _IOWR('f', 164, struct obd_statfs *) #define IOC_LOV_GETINFO _IOWR('f', 165, struct lov_user_mds_data *) -#define LL_IOC_FLUSHCTX _IOW ('f', 166, long) -#define LL_IOC_RMTACL _IOW ('f', 167, long) -#define LL_IOC_GETOBDCOUNT _IOR ('f', 168, long) +#define LL_IOC_FLUSHCTX _IOW('f', 166, long) +#define LL_IOC_RMTACL _IOW('f', 167, long) +#define LL_IOC_GETOBDCOUNT _IOR('f', 168, long) #define LL_IOC_LLOOP_ATTACH _IOWR('f', 169, long) #define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long) #define LL_IOC_LLOOP_INFO _IOWR('f', 171, struct lu_fid) #define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long) -#define LL_IOC_PATH2FID _IOR ('f', 173, long) +#define LL_IOC_PATH2FID _IOR('f', 173, long) #define LL_IOC_GET_CONNECT_FLAGS _IOWR('f', 174, __u64 *) -#define LL_IOC_GET_MDTIDX _IOR ('f', 175, int) +#define LL_IOC_GET_MDTIDX _IOR('f', 175, int) /* see for ioctl numbers 177-210 */ @@ -1100,7 +1100,7 @@ struct hsm_action_list { } __packed; #ifndef HAVE_CFS_SIZE_ROUND -static inline int cfs_size_round (int val) +static inline int cfs_size_round(int val) { return (val + 7) & (~0x7); } diff --git a/drivers/staging/lustre/lustre/include/lustre_cfg.h b/drivers/staging/lustre/lustre/include/lustre_cfg.h index bb16ae9..e229e91 100644 --- a/drivers/staging/lustre/lustre/include/lustre_cfg.h +++ b/drivers/staging/lustre/lustre/include/lustre_cfg.h @@ -161,7 +161,7 @@ static inline void *lustre_cfg_buf(struct lustre_cfg *lcfg, int index) int offset; int bufcount; - LASSERT (index >= 0); + LASSERT(index >= 0); bufcount = lcfg->lcfg_bufcount; if (index >= bufcount) diff --git a/drivers/staging/lustre/lustre/include/lustre_import.h b/drivers/staging/lustre/lustre/include/lustre_import.h index dac2d84..8325c82 100644 --- a/drivers/staging/lustre/lustre/include/lustre_import.h +++ b/drivers/staging/lustre/lustre/include/lustre_import.h @@ -109,7 +109,7 @@ static inline char *ptlrpc_import_state_name(enum lustre_imp_state state) "RECOVER", "FULL", "EVICTED", }; - LASSERT (state <= LUSTRE_IMP_EVICTED); + LASSERT(state <= LUSTRE_IMP_EVICTED); return import_state_names[state]; } diff --git a/drivers/staging/lustre/lustre/include/lustre_lib.h b/drivers/staging/lustre/lustre/include/lustre_lib.h index c5713d7..2e66b27 100644 --- a/drivers/staging/lustre/lustre/include/lustre_lib.h +++ b/drivers/staging/lustre/lustre/include/lustre_lib.h @@ -280,16 +280,16 @@ static inline void obd_ioctl_freedata(char *buf, int len) #define OBD_IOC_DATA_TYPE long #define OBD_IOC_CREATE _IOWR('f', 101, OBD_IOC_DATA_TYPE) -#define OBD_IOC_DESTROY _IOW ('f', 104, OBD_IOC_DATA_TYPE) +#define OBD_IOC_DESTROY _IOW('f', 104, OBD_IOC_DATA_TYPE) #define OBD_IOC_PREALLOCATE _IOWR('f', 105, OBD_IOC_DATA_TYPE) -#define OBD_IOC_SETATTR _IOW ('f', 107, OBD_IOC_DATA_TYPE) +#define OBD_IOC_SETATTR _IOW('f', 107, OBD_IOC_DATA_TYPE) #define OBD_IOC_GETATTR _IOWR ('f', 108, OBD_IOC_DATA_TYPE) #define OBD_IOC_READ _IOWR('f', 109, OBD_IOC_DATA_TYPE) #define OBD_IOC_WRITE _IOWR('f', 110, OBD_IOC_DATA_TYPE) #define OBD_IOC_STATFS _IOWR('f', 113, OBD_IOC_DATA_TYPE) -#define OBD_IOC_SYNC _IOW ('f', 114, OBD_IOC_DATA_TYPE) +#define OBD_IOC_SYNC _IOW('f', 114, OBD_IOC_DATA_TYPE) #define OBD_IOC_READ2 _IOWR('f', 115, OBD_IOC_DATA_TYPE) #define OBD_IOC_FORMAT _IOWR('f', 116, OBD_IOC_DATA_TYPE) #define OBD_IOC_PARTITION _IOWR('f', 117, OBD_IOC_DATA_TYPE) @@ -308,13 +308,13 @@ static inline void obd_ioctl_freedata(char *buf, int len) #define OBD_IOC_GETDTNAME OBD_IOC_GETNAME #define OBD_IOC_LOV_GET_CONFIG _IOWR('f', 132, OBD_IOC_DATA_TYPE) -#define OBD_IOC_CLIENT_RECOVER _IOW ('f', 133, OBD_IOC_DATA_TYPE) -#define OBD_IOC_PING_TARGET _IOW ('f', 136, OBD_IOC_DATA_TYPE) +#define OBD_IOC_CLIENT_RECOVER _IOW('f', 133, OBD_IOC_DATA_TYPE) +#define OBD_IOC_PING_TARGET _IOW('f', 136, OBD_IOC_DATA_TYPE) #define OBD_IOC_DEC_FS_USE_COUNT _IO ('f', 139) -#define OBD_IOC_NO_TRANSNO _IOW ('f', 140, OBD_IOC_DATA_TYPE) -#define OBD_IOC_SET_READONLY _IOW ('f', 141, OBD_IOC_DATA_TYPE) -#define OBD_IOC_ABORT_RECOVERY _IOR ('f', 142, OBD_IOC_DATA_TYPE) +#define OBD_IOC_NO_TRANSNO _IOW('f', 140, OBD_IOC_DATA_TYPE) +#define OBD_IOC_SET_READONLY _IOW('f', 141, OBD_IOC_DATA_TYPE) +#define OBD_IOC_ABORT_RECOVERY _IOR('f', 142, OBD_IOC_DATA_TYPE) #define OBD_IOC_ROOT_SQUASH _IOWR('f', 143, OBD_IOC_DATA_TYPE) @@ -324,27 +324,27 @@ static inline void obd_ioctl_freedata(char *buf, int len) #define OBD_IOC_CLOSE_UUID _IOWR ('f', 147, OBD_IOC_DATA_TYPE) -#define OBD_IOC_CHANGELOG_SEND _IOW ('f', 148, OBD_IOC_DATA_TYPE) +#define OBD_IOC_CHANGELOG_SEND _IOW('f', 148, OBD_IOC_DATA_TYPE) #define OBD_IOC_GETDEVICE _IOWR ('f', 149, OBD_IOC_DATA_TYPE) #define OBD_IOC_FID2PATH _IOWR ('f', 150, OBD_IOC_DATA_TYPE) /* see also for ioctls 151-153 */ /* OBD_IOC_LOV_SETSTRIPE: See also LL_IOC_LOV_SETSTRIPE */ -#define OBD_IOC_LOV_SETSTRIPE _IOW ('f', 154, OBD_IOC_DATA_TYPE) +#define OBD_IOC_LOV_SETSTRIPE _IOW('f', 154, OBD_IOC_DATA_TYPE) /* OBD_IOC_LOV_GETSTRIPE: See also LL_IOC_LOV_GETSTRIPE */ -#define OBD_IOC_LOV_GETSTRIPE _IOW ('f', 155, OBD_IOC_DATA_TYPE) +#define OBD_IOC_LOV_GETSTRIPE _IOW('f', 155, OBD_IOC_DATA_TYPE) /* OBD_IOC_LOV_SETEA: See also LL_IOC_LOV_SETEA */ -#define OBD_IOC_LOV_SETEA _IOW ('f', 156, OBD_IOC_DATA_TYPE) +#define OBD_IOC_LOV_SETEA _IOW('f', 156, OBD_IOC_DATA_TYPE) /* see for ioctls 157-159 */ /* OBD_IOC_QUOTACHECK: See also LL_IOC_QUOTACHECK */ -#define OBD_IOC_QUOTACHECK _IOW ('f', 160, int) +#define OBD_IOC_QUOTACHECK _IOW('f', 160, int) /* OBD_IOC_POLL_QUOTACHECK: See also LL_IOC_POLL_QUOTACHECK */ -#define OBD_IOC_POLL_QUOTACHECK _IOR ('f', 161, struct if_quotacheck *) +#define OBD_IOC_POLL_QUOTACHECK _IOR('f', 161, struct if_quotacheck *) /* OBD_IOC_QUOTACTL: See also LL_IOC_QUOTACTL */ #define OBD_IOC_QUOTACTL _IOWR('f', 162, struct if_quotactl) /* see also for ioctls 163-176 */ -#define OBD_IOC_CHANGELOG_REG _IOW ('f', 177, struct obd_ioctl_data) -#define OBD_IOC_CHANGELOG_DEREG _IOW ('f', 178, struct obd_ioctl_data) -#define OBD_IOC_CHANGELOG_CLEAR _IOW ('f', 179, struct obd_ioctl_data) +#define OBD_IOC_CHANGELOG_REG _IOW('f', 177, struct obd_ioctl_data) +#define OBD_IOC_CHANGELOG_DEREG _IOW('f', 178, struct obd_ioctl_data) +#define OBD_IOC_CHANGELOG_CLEAR _IOW('f', 179, struct obd_ioctl_data) #define OBD_IOC_RECORD _IOWR('f', 180, OBD_IOC_DATA_TYPE) #define OBD_IOC_ENDRECORD _IOWR('f', 181, OBD_IOC_DATA_TYPE) #define OBD_IOC_PARSE _IOWR('f', 182, OBD_IOC_DATA_TYPE) @@ -352,7 +352,7 @@ static inline void obd_ioctl_freedata(char *buf, int len) #define OBD_IOC_PROCESS_CFG _IOWR('f', 184, OBD_IOC_DATA_TYPE) #define OBD_IOC_DUMP_LOG _IOWR('f', 185, OBD_IOC_DATA_TYPE) #define OBD_IOC_CLEAR_LOG _IOWR('f', 186, OBD_IOC_DATA_TYPE) -#define OBD_IOC_PARAM _IOW ('f', 187, OBD_IOC_DATA_TYPE) +#define OBD_IOC_PARAM _IOW('f', 187, OBD_IOC_DATA_TYPE) #define OBD_IOC_POOL _IOWR('f', 188, OBD_IOC_DATA_TYPE) #define OBD_IOC_REPLACE_NIDS _IOWR('f', 189, OBD_IOC_DATA_TYPE) diff --git a/drivers/staging/lustre/lustre/obdclass/debug.c b/drivers/staging/lustre/lustre/obdclass/debug.c index 43a7f7a..e4edfb2 100644 --- a/drivers/staging/lustre/lustre/obdclass/debug.c +++ b/drivers/staging/lustre/lustre/obdclass/debug.c @@ -68,8 +68,8 @@ int block_debug_check(char *who, void *addr, int end, __u64 off, __u64 id) LASSERT(addr); - ne_off = le64_to_cpu (off); - id = le64_to_cpu (id); + ne_off = le64_to_cpu(off); + id = le64_to_cpu(id); if (memcmp(addr, (char *)&ne_off, LPDS)) { CDEBUG(D_ERROR, "%s: id %#llx offset %llu off: %#llx != %#llx\n", who, id, off, *(__u64 *)addr, ne_off); diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h index aba6469..ae19d39 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h @@ -403,20 +403,20 @@ extern struct lu_context_key osc_session_key; int osc_lock_init(const struct lu_env *env, struct cl_object *obj, struct cl_lock *lock, const struct cl_io *io); -int osc_io_init (const struct lu_env *env, - struct cl_object *obj, struct cl_io *io); -int osc_req_init (const struct lu_env *env, struct cl_device *dev, - struct cl_req *req); +int osc_io_init(const struct lu_env *env, + struct cl_object *obj, struct cl_io *io); +int osc_req_init(const struct lu_env *env, struct cl_device *dev, + struct cl_req *req); struct lu_object *osc_object_alloc(const struct lu_env *env, const struct lu_object_header *hdr, struct lu_device *dev); int osc_page_init(const struct lu_env *env, struct cl_object *obj, struct cl_page *page, pgoff_t ind); -void osc_index2policy (ldlm_policy_data_t *policy, const struct cl_object *obj, - pgoff_t start, pgoff_t end); -int osc_lvb_print (const struct lu_env *env, void *cookie, - lu_printer_t p, const struct ost_lvb *lvb); +void osc_index2policy(ldlm_policy_data_t *policy, const struct cl_object *obj, + pgoff_t start, pgoff_t end); +int osc_lvb_print(const struct lu_env *env, void *cookie, + lu_printer_t p, const struct ost_lvb *lvb); void osc_lru_add_batch(struct client_obd *cli, struct list_head *list); void osc_page_submit(const struct lu_env *env, struct osc_page *opg, @@ -448,11 +448,11 @@ void osc_io_unplug(const struct lu_env *env, struct client_obd *cli, struct osc_object *osc); int lru_queue_work(const struct lu_env *env, void *data); -void osc_object_set_contended (struct osc_object *obj); +void osc_object_set_contended(struct osc_object *obj); void osc_object_clear_contended(struct osc_object *obj); -int osc_object_is_contended (struct osc_object *obj); +int osc_object_is_contended(struct osc_object *obj); -int osc_lock_is_lockless (const struct osc_lock *olck); +int osc_lock_is_lockless(const struct osc_lock *olck); /***************************************************************************** * diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 5b9f72c..4d3eed6 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -2485,7 +2485,7 @@ static int osc_statfs_async(struct obd_export *exp, } req->rq_interpret_reply = (ptlrpc_interpterer_t)osc_statfs_interpret; - CLASSERT (sizeof(*aa) <= sizeof(req->rq_async_args)); + CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args)); aa = ptlrpc_req_async_args(req); aa->aa_oi = oinfo; -- cgit v0.10.2 From 6cead36d284f230d29c2500c774180b8c716d4e6 Mon Sep 17 00:00:00 2001 From: Vitaly Fertman Date: Wed, 30 Mar 2016 19:49:06 -0400 Subject: staging/lustre/ldlm: Solve a race for LRU lock cancel This patch solves a race condition that the lock may be used again after LRU cancellation policy check. In that case, the lock may have locked or dirty pages that makes the policy check totally useless. The problem is solved by checking l_last_used at cancellation time therefore it can make sure that the lock has not been used. Signed-off-by: Jinshan Xiong Signed-off-by: Vitaly Fertman Reviewed-on: http://review.whamcloud.com/12603 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5781 Reviewed-by: James Simmons Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h index e31d84a..351f8b4 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h @@ -146,7 +146,8 @@ void ldlm_lock_decref_internal(struct ldlm_lock *, __u32 mode); void ldlm_lock_decref_internal_nolock(struct ldlm_lock *, __u32 mode); int ldlm_run_ast_work(struct ldlm_namespace *ns, struct list_head *rpc_list, enum ldlm_desc_ast_t ast_type); -int ldlm_lock_remove_from_lru(struct ldlm_lock *lock); +int ldlm_lock_remove_from_lru_check(struct ldlm_lock *lock, time_t last_use); +#define ldlm_lock_remove_from_lru(lock) ldlm_lock_remove_from_lru_check(lock, 0) int ldlm_lock_remove_from_lru_nolock(struct ldlm_lock *lock); void ldlm_lock_destroy_nolock(struct ldlm_lock *lock); diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c index 27a051b..3f9b8526 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c @@ -229,15 +229,25 @@ int ldlm_lock_remove_from_lru_nolock(struct ldlm_lock *lock) /** * Removes LDLM lock \a lock from LRU. Obtains the LRU lock first. + * + * If \a last_use is non-zero, it will remove the lock from LRU only if + * it matches lock's l_last_used. + * + * \retval 0 if \a last_use is set, the lock is not in LRU list or \a last_use + * doesn't match lock's l_last_used; + * otherwise, the lock hasn't been in the LRU list. + * \retval 1 the lock was in LRU list and removed. */ -int ldlm_lock_remove_from_lru(struct ldlm_lock *lock) +int ldlm_lock_remove_from_lru_check(struct ldlm_lock *lock, time_t last_use) { struct ldlm_namespace *ns = ldlm_lock_to_ns(lock); - int rc; + int rc = 0; spin_lock(&ns->ns_lock); - rc = ldlm_lock_remove_from_lru_nolock(lock); + if (last_use == 0 || last_use == lock->l_last_used) + rc = ldlm_lock_remove_from_lru_nolock(lock); spin_unlock(&ns->ns_lock); + return rc; } diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index 9aa4c2d..5b0e396 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -1369,6 +1369,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, while (!list_empty(&ns->ns_unused_list)) { ldlm_policy_res_t result; + time_t last_use = 0; /* all unused locks */ if (remained-- <= 0) @@ -1387,6 +1388,10 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, /* already processed */ continue; + last_use = lock->l_last_used; + if (last_use == cfs_time_current()) + continue; + /* Somebody is already doing CANCEL. No need for this * lock in LRU, do not traverse it again. */ @@ -1434,11 +1439,13 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, lock_res_and_lock(lock); /* Check flags again under the lock. */ if ((lock->l_flags & LDLM_FL_CANCELING) || - (ldlm_lock_remove_from_lru(lock) == 0)) { + (ldlm_lock_remove_from_lru_check(lock, last_use) == 0)) { /* Another thread is removing lock from LRU, or * somebody is already doing CANCEL, or there * is a blocking request which will send cancel - * by itself, or the lock is no longer unused. + * by itself, or the lock is no longer unused or + * the lock has been used since the pf() call and + * pages could be put under it. */ unlock_res_and_lock(lock); lu_ref_del(&lock->l_reference, -- cgit v0.10.2 From 30889c72a9fe53b3d4303464fc688497cbb14219 Mon Sep 17 00:00:00 2001 From: Bobi Jam Date: Wed, 30 Mar 2016 19:49:07 -0400 Subject: staging/lustre: lov_io_init() should return error code lov_io_init_empty/release() should returns error code instead of true on error case. Fault IO needs to handle restart in the case of accessing HSM released file Signed-off-by: Bobi Jam Reviewed-on: http://review.whamcloud.com/17240 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7446 Reviewed-by: John L. Hammond Reviewed-by: Jinshan Xiong Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c index 83d7006..5b4382c 100644 --- a/drivers/staging/lustre/lustre/llite/llite_mmap.c +++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c @@ -123,6 +123,7 @@ ll_fault_io_init(struct vm_area_struct *vma, struct lu_env **env_ret, *env_ret = env; +restart: io = vvp_env_thread_io(env); io->ci_obj = ll_i2info(inode)->lli_clob; LASSERT(io->ci_obj); @@ -157,6 +158,9 @@ ll_fault_io_init(struct vm_area_struct *vma, struct lu_env **env_ret, } else { LASSERT(rc < 0); cl_io_fini(env, io); + if (io->ci_need_restart) + goto restart; + cl_env_nested_put(nest, env); io = ERR_PTR(rc); } diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c index ba79955..4151237 100644 --- a/drivers/staging/lustre/lustre/lov/lov_io.c +++ b/drivers/staging/lustre/lustre/lov/lov_io.c @@ -916,7 +916,7 @@ int lov_io_init_empty(const struct lu_env *env, struct cl_object *obj, } io->ci_result = result < 0 ? result : 0; - return result != 0; + return result; } int lov_io_init_released(const struct lu_env *env, struct cl_object *obj, @@ -959,7 +959,7 @@ int lov_io_init_released(const struct lu_env *env, struct cl_object *obj, } io->ci_result = result < 0 ? result : 0; - return result != 0; + return result; } /** @} lov */ diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c index 7655dc4..f4b3178 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_io.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c @@ -133,6 +133,7 @@ void cl_io_fini(const struct lu_env *env, struct cl_io *io) case CIT_WRITE: break; case CIT_FAULT: + break; case CIT_FSYNC: LASSERT(!io->ci_need_restart); break; -- cgit v0.10.2 From 564f5d6e92d16ad893b4b5bad520bba6a3008b09 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Thu, 31 Mar 2016 10:18:35 -0400 Subject: staging: lustre: libcfs: move add_wait_queue_exclusive_head to lustre layer Only lustre client uses add_wait_queue_exclusive_head() so move it from libcfs layer to lustre_lib.h where it is needed. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/13874 Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h index 082fe6d..d7846e8 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h @@ -40,8 +40,6 @@ #ifndef __LIBCFS_PRIM_H__ #define __LIBCFS_PRIM_H__ -void add_wait_queue_exclusive_head(wait_queue_head_t *, wait_queue_t *); - /* * Memory */ diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c index 7e5ef0a..bbe19a6 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c @@ -46,30 +46,6 @@ #include #endif -/** - * wait_queue_t of Linux (version < 2.6.34) is a FIFO list for exclusively - * waiting threads, which is not always desirable because all threads will - * be waken up again and again, even user only needs a few of them to be - * active most time. This is not good for performance because cache can - * be polluted by different threads. - * - * LIFO list can resolve this problem because we always wakeup the most - * recent active thread by default. - * - * NB: please don't call non-exclusive & exclusive wait on the same - * waitq if add_wait_queue_exclusive_head is used. - */ -void -add_wait_queue_exclusive_head(wait_queue_head_t *waitq, wait_queue_t *link) -{ - unsigned long flags; - - spin_lock_irqsave(&waitq->lock, flags); - __add_wait_queue_exclusive(waitq, link); - spin_unlock_irqrestore(&waitq->lock, flags); -} -EXPORT_SYMBOL(add_wait_queue_exclusive_head); - sigset_t cfs_block_allsigs(void) { diff --git a/drivers/staging/lustre/lustre/include/lustre_lib.h b/drivers/staging/lustre/lustre/include/lustre_lib.h index 2e66b27..00b9767 100644 --- a/drivers/staging/lustre/lustre/include/lustre_lib.h +++ b/drivers/staging/lustre/lustre/include/lustre_lib.h @@ -522,6 +522,28 @@ struct l_wait_info { sigmask(SIGTERM) | sigmask(SIGQUIT) | \ sigmask(SIGALRM)) +/** + * wait_queue_t of Linux (version < 2.6.34) is a FIFO list for exclusively + * waiting threads, which is not always desirable because all threads will + * be waken up again and again, even user only needs a few of them to be + * active most time. This is not good for performance because cache can + * be polluted by different threads. + * + * LIFO list can resolve this problem because we always wakeup the most + * recent active thread by default. + * + * NB: please don't call non-exclusive & exclusive wait on the same + * waitq if add_wait_queue_exclusive_head is used. + */ +#define add_wait_queue_exclusive_head(waitq, link) \ +{ \ + unsigned long flags; \ + \ + spin_lock_irqsave(&((waitq)->lock), flags); \ + __add_wait_queue_exclusive(waitq, link); \ + spin_unlock_irqrestore(&((waitq)->lock), flags); \ +} + /* * wait for @condition to become true, but no longer than timeout, specified * by @info. -- cgit v0.10.2 From bd6e2c5067ad6ead097ada26e899ba97266a8bf0 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Thu, 31 Mar 2016 10:18:36 -0400 Subject: staging: lustre: libcfs: move memory_pressure functions to libcfs_prim.h Long ago libcfs_prim.h was used for userland code which is why memory_pressure_*() handling is in both libcfs_prim.h and linux-mem.h headers. So lets just move the memory_pressure_*() to libcfs_prim.h. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/13841 Reviewed-by: frank zago Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h index d7846e8..d97060b 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h @@ -43,15 +43,20 @@ /* * Memory */ -#ifndef memory_pressure_get -#define memory_pressure_get() (0) -#endif -#ifndef memory_pressure_set -#define memory_pressure_set() do {} while (0) -#endif -#ifndef memory_pressure_clr -#define memory_pressure_clr() do {} while (0) -#endif +static inline unsigned int memory_pressure_get(void) +{ + return current->flags & PF_MEMALLOC; +} + +static inline void memory_pressure_set(void) +{ + current->flags |= PF_MEMALLOC; +} + +static inline void memory_pressure_clr(void) +{ + current->flags &= ~PF_MEMALLOC; +} static inline int cfs_memory_pressure_get_and_set(void) { diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h index 448379b..c50ef83 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h @@ -59,10 +59,6 @@ #define page_index(p) ((p)->index) -#define memory_pressure_get() (current->flags & PF_MEMALLOC) -#define memory_pressure_set() do { current->flags |= PF_MEMALLOC; } while (0) -#define memory_pressure_clr() do { current->flags &= ~PF_MEMALLOC; } while (0) - #if BITS_PER_LONG == 32 /* limit to lowmem on 32-bit systems */ #define NUM_CACHEPAGES \ -- cgit v0.10.2 From badc9feddfd30096666e22afbda028971a49bfa9 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Thu, 31 Mar 2016 10:18:37 -0400 Subject: staging: lustre: libcfs: remove page_index() macro Just use the index field directly for struct page. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/13841 Reviewed-by: frank zago Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h index c50ef83..12fde3c 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h @@ -57,8 +57,6 @@ #include "../libcfs_cpu.h" #endif -#define page_index(p) ((p)->index) - #if BITS_PER_LONG == 32 /* limit to lowmem on 32-bit systems */ #define NUM_CACHEPAGES \ diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c index 69316c1..0c92293 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_page.c +++ b/drivers/staging/lustre/lustre/llite/vvp_page.c @@ -394,7 +394,7 @@ static int vvp_page_print(const struct lu_env *env, (*printer)(env, cookie, "%lx %d:%d %lx %lu %slru", (long)vmpage->flags, page_count(vmpage), page_mapcount(vmpage), vmpage->private, - page_index(vmpage), + vmpage->index, list_empty(&vmpage->lru) ? "not-" : ""); } diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 4d3eed6..547539c 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -1934,7 +1934,7 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, pga[i] = &oap->oap_brw_page; pga[i]->off = oap->oap_obj_off + oap->oap_page_off; CDEBUG(0, "put page %p index %lu oap %p flg %x to pga\n", - pga[i]->pg, page_index(oap->oap_page), oap, + pga[i]->pg, oap->oap_page->index, oap, pga[i]->flag); i++; cl_req_page_add(env, clerq, page); -- cgit v0.10.2 From e3e30e10c5d72844f020fe42e62066e9fd1b051c Mon Sep 17 00:00:00 2001 From: James Simmons Date: Thu, 31 Mar 2016 10:18:38 -0400 Subject: staging: lustre: libcfs: remove MMSPACE macros Another abstraction that is not needed. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/13841 Reviewed-by: frank zago Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h index 12fde3c..c4b4284 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h @@ -65,9 +65,4 @@ #define NUM_CACHEPAGES totalram_pages #endif -#define DECL_MMSPACE mm_segment_t __oldfs -#define MMSPACE_OPEN \ - do { __oldfs = get_fs(); set_fs(get_ds()); } while (0) -#define MMSPACE_CLOSE set_fs(__oldfs) - #endif /* __LINUX_CFS_MEM_H__ */ diff --git a/drivers/staging/lustre/lnet/libcfs/tracefile.c b/drivers/staging/lustre/lnet/libcfs/tracefile.c index ec3bc04..5169597 100644 --- a/drivers/staging/lustre/lnet/libcfs/tracefile.c +++ b/drivers/staging/lustre/lnet/libcfs/tracefile.c @@ -707,10 +707,9 @@ int cfs_tracefile_dump_all_pages(char *filename) struct cfs_trace_page *tage; struct cfs_trace_page *tmp; char *buf; + mm_segment_t __oldfs; int rc; - DECL_MMSPACE; - cfs_tracefile_write_lock(); filp = filp_open(filename, O_CREAT | O_EXCL | O_WRONLY | O_LARGEFILE, @@ -729,11 +728,12 @@ int cfs_tracefile_dump_all_pages(char *filename) rc = 0; goto close; } + __oldfs = get_fs(); + set_fs(get_ds()); /* ok, for now, just write the pages. in the future we'll be building * iobufs with the pages and calling generic_direct_IO */ - MMSPACE_OPEN; list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) { __LASSERT_TAGE_INVARIANT(tage); @@ -752,7 +752,7 @@ int cfs_tracefile_dump_all_pages(char *filename) list_del(&tage->linkage); cfs_tage_free(tage); } - MMSPACE_CLOSE; + set_fs(__oldfs); rc = vfs_fsync(filp, 1); if (rc) pr_err("sync returns %d\n", rc); @@ -986,13 +986,12 @@ static int tracefiled(void *arg) struct tracefiled_ctl *tctl = arg; struct cfs_trace_page *tage; struct cfs_trace_page *tmp; + mm_segment_t __oldfs; struct file *filp; char *buf; int last_loop = 0; int rc; - DECL_MMSPACE; - /* we're started late enough that we pick up init's fs context */ /* this is so broken in uml? what on earth is going on? */ @@ -1025,8 +1024,8 @@ static int tracefiled(void *arg) __LASSERT(list_empty(&pc.pc_pages)); goto end_loop; } - - MMSPACE_OPEN; + __oldfs = get_fs(); + set_fs(get_ds()); list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) { static loff_t f_pos; @@ -1051,7 +1050,7 @@ static int tracefiled(void *arg) break; } } - MMSPACE_CLOSE; + set_fs(__oldfs); filp_close(filp, NULL); put_pages_on_daemon_list(&pc); -- cgit v0.10.2 From 5c89dc06eb45bebe4dcc59205ac0ed3fe3c44c34 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Thu, 31 Mar 2016 10:18:39 -0400 Subject: staging: lustre: libcfs: move NUM_CACHEPAGES to libcfs_prim.h We don't really need linux specific headers anymore so move NUM_CACHEPAGES macro to libcfs_prim.h. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/13841 Reviewed-by: frank zago Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h index d97060b..6f7a276 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h @@ -43,6 +43,14 @@ /* * Memory */ +#if BITS_PER_LONG == 32 +/* limit to lowmem on 32-bit systems */ +#define NUM_CACHEPAGES \ + min(totalram_pages, 1UL << (30 - PAGE_CACHE_SHIFT) * 3 / 4) +#else +#define NUM_CACHEPAGES totalram_pages +#endif + static inline unsigned int memory_pressure_get(void) { return current->flags & PF_MEMALLOC; diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h index c4b4284..9285fef 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h @@ -57,12 +57,4 @@ #include "../libcfs_cpu.h" #endif -#if BITS_PER_LONG == 32 -/* limit to lowmem on 32-bit systems */ -#define NUM_CACHEPAGES \ - min(totalram_pages, 1UL << (30 - PAGE_CACHE_SHIFT) * 3 / 4) -#else -#define NUM_CACHEPAGES totalram_pages -#endif - #endif /* __LINUX_CFS_MEM_H__ */ -- cgit v0.10.2 From 899e1a31ffc0cf01b1ca7512e079721b79803929 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Thu, 31 Mar 2016 10:18:40 -0400 Subject: staging: lustre: libcfs: delete linux-mem.h The header linux-mem.h is no longer needed. Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6245 Reviewed-on: http://review.whamcloud.com/13841 Reviewed-by: frank zago Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h index d94b266..a268ef7 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h @@ -60,6 +60,7 @@ #include #include #include +#include #include #include #include @@ -83,7 +84,6 @@ #include #include "linux-cpu.h" #include "linux-time.h" -#include "linux-mem.h" #define LUSTRE_TRACE_SIZE (THREAD_SIZE >> 5) diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h index c04979a..f63cb47 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h @@ -23,7 +23,7 @@ * This file is part of Lustre, http://www.lustre.org/ * Lustre is a trademark of Sun Microsystems, Inc. * - * libcfs/include/libcfs/linux/linux-mem.h + * libcfs/include/libcfs/linux/linux-cpu.h * * Basic library routines. * diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h deleted file mode 100644 index 9285fef..0000000 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. - * - * GPL HEADER END - */ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * libcfs/include/libcfs/linux/linux-mem.h - * - * Basic library routines. - */ - -#ifndef __LIBCFS_LINUX_CFS_MEM_H__ -#define __LIBCFS_LINUX_CFS_MEM_H__ - -#ifndef __LIBCFS_LIBCFS_H__ -#error Do not #include this file directly. #include instead -#endif - -#include -#include -#include -#include -#include -#include - -#ifndef HAVE_LIBCFS_CPT -/* Need this for cfs_cpt_table */ -#include "../libcfs_cpu.h" -#endif - -#endif /* __LINUX_CFS_MEM_H__ */ -- cgit v0.10.2 From 1f2f03c201d4df0035268f8cbecb31bf58f59355 Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Wed, 30 Mar 2016 23:06:08 -0400 Subject: staging: unisys: visorbus: remove unnecessary poll_count logic The use of poll_count is a vestige from long-ago testing, which is no longer needed. It is removed by this patch. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 17bedbc..6187772 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -1868,18 +1868,11 @@ controlvm_periodic_work(struct work_struct *work) struct controlvm_message inmsg; bool got_command = false; bool handle_command_failed = false; - static u64 poll_count; /* make sure visorbus server is registered for controlvm callbacks */ if (visorchipset_visorbusregwait && !visorbusregistered) goto cleanup; - poll_count++; - if (poll_count >= 250) - ; /* keep going */ - else - goto cleanup; - /* Check events to determine if response to CHIPSET_READY * should be sent */ -- cgit v0.10.2 From e491e716dc6a8f43cec7353e5a89e19058f3a48a Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Thu, 31 Mar 2016 17:03:35 +0900 Subject: staging: dgnc: remove useless variables for saving tty's It doesn't need to save major number with variable. And there are no use of these variables(dgnc_serial_major and dgnc_transparent_print_major) Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h index 44216ae..6609ba5 100644 --- a/drivers/staging/dgnc/dgnc_driver.h +++ b/drivers/staging/dgnc/dgnc_driver.h @@ -210,9 +210,6 @@ struct dgnc_board { bool dgnc_major_serial_registered; bool dgnc_major_transparent_print_registered; - uint dgnc_serial_major; - uint dgnc_transparent_print_major; - u16 dpatype; /* The board "type", * as defined by DPA */ diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 98b88d1..5097208 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -286,8 +286,6 @@ int dgnc_tty_register(struct dgnc_board *brd) } dgnc_BoardsByMajor[brd->serial_driver.major] = brd; - brd->dgnc_serial_major = brd->serial_driver.major; - brd->dgnc_transparent_print_major = brd->print_driver.major; return rc; } @@ -409,7 +407,6 @@ void dgnc_tty_uninit(struct dgnc_board *brd) if (brd->dgnc_major_serial_registered) { dgnc_BoardsByMajor[brd->serial_driver.major] = NULL; - brd->dgnc_serial_major = 0; for (i = 0; i < brd->nasync; i++) { if (brd->channels[i]) dgnc_remove_tty_sysfs(brd->channels[i]-> @@ -422,7 +419,6 @@ void dgnc_tty_uninit(struct dgnc_board *brd) if (brd->dgnc_major_transparent_print_registered) { dgnc_BoardsByMajor[brd->print_driver.major] = NULL; - brd->dgnc_transparent_print_major = 0; for (i = 0; i < brd->nasync; i++) { if (brd->channels[i]) dgnc_remove_tty_sysfs(brd->channels[i]-> -- cgit v0.10.2 From 56d118c243fbc62d95a79183bb6bcfc38a398da5 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Thu, 31 Mar 2016 17:03:59 +0900 Subject: staging: dgnc: clean up dgnc_input function This is for fixing checkpatch.pl warning about "Alignment should match open parenthesis" but if that is fixed, code line is over 80 characters. I think "ch->ch_rqueue + tail + i" could be declared once in the begining of loop. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 5097208..d617fca 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -602,6 +602,8 @@ void dgnc_input(struct channel_t *ch) * or the amount of data the card actually has pending... */ while (n) { + unsigned char *ch_pos = ch->ch_equeue + tail; + s = ((head >= tail) ? head : RQUEUESIZE) - tail; s = min(s, n); @@ -616,29 +618,20 @@ void dgnc_input(struct channel_t *ch) */ if (I_PARMRK(tp) || I_BRKINT(tp) || I_INPCK(tp)) { for (i = 0; i < s; i++) { - if (*(ch->ch_equeue + tail + i) & UART_LSR_BI) - tty_insert_flip_char(tp->port, - *(ch->ch_rqueue + tail + i), - TTY_BREAK); - else if (*(ch->ch_equeue + tail + i) & - UART_LSR_PE) - tty_insert_flip_char(tp->port, - *(ch->ch_rqueue + tail + i), - TTY_PARITY); - else if (*(ch->ch_equeue + tail + i) & - UART_LSR_FE) - tty_insert_flip_char(tp->port, - *(ch->ch_rqueue + tail + i), - TTY_FRAME); - else - tty_insert_flip_char(tp->port, - *(ch->ch_rqueue + tail + i), - TTY_NORMAL); + unsigned char ch = *(ch_pos + i); + char flag = TTY_NORMAL; + + if (ch & UART_LSR_BI) + flag = TTY_BREAK; + else if (ch & UART_LSR_PE) + flag = TTY_PARITY; + else if (ch & UART_LSR_FE) + flag = TTY_FRAME; + + tty_insert_flip_char(tp->port, ch, flag); } } else { - tty_insert_flip_string(tp->port, - ch->ch_rqueue + tail, - s); + tty_insert_flip_string(tp->port, ch_pos, s); } tail += s; -- cgit v0.10.2 From 91307cbeca7fd372342aaea7e814a19156ee8e64 Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Thu, 24 Mar 2016 17:06:01 +0100 Subject: iio: potentiometer: mcp4531: use pointer to access model parameters Use const pointer to element from model configuration array rather then array index, as it will not change anyway. Signed-off-by: Slawomir Stepien Signed-off-by: Peter Rosin Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/potentiometer/mcp4531.c b/drivers/iio/potentiometer/mcp4531.c index 0db67fe..3b72e1a 100644 --- a/drivers/iio/potentiometer/mcp4531.c +++ b/drivers/iio/potentiometer/mcp4531.c @@ -79,7 +79,7 @@ static const struct mcp4531_cfg mcp4531_cfg[] = { struct mcp4531_data { struct i2c_client *client; - unsigned long devid; + const struct mcp4531_cfg *cfg; }; #define MCP4531_CHANNEL(ch) { \ @@ -113,8 +113,8 @@ static int mcp4531_read_raw(struct iio_dev *indio_dev, *val = ret; return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - *val = 1000 * mcp4531_cfg[data->devid].kohms; - *val2 = mcp4531_cfg[data->devid].max_pos; + *val = 1000 * data->cfg->kohms; + *val2 = data->cfg->max_pos; return IIO_VAL_FRACTIONAL; } @@ -130,7 +130,7 @@ static int mcp4531_write_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: - if (val > mcp4531_cfg[data->devid].max_pos || val < 0) + if (val > data->cfg->max_pos || val < 0) return -EINVAL; break; default: @@ -152,7 +152,6 @@ static int mcp4531_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; - unsigned long devid = id->driver_data; struct mcp4531_data *data; struct iio_dev *indio_dev; @@ -168,12 +167,12 @@ static int mcp4531_probe(struct i2c_client *client, data = iio_priv(indio_dev); i2c_set_clientdata(client, indio_dev); data->client = client; - data->devid = devid; + data->cfg = &mcp4531_cfg[id->driver_data]; indio_dev->dev.parent = dev; indio_dev->info = &mcp4531_info; indio_dev->channels = mcp4531_channels; - indio_dev->num_channels = mcp4531_cfg[devid].wipers; + indio_dev->num_channels = data->cfg->wipers; indio_dev->name = client->name; return devm_iio_device_register(dev, indio_dev); -- cgit v0.10.2 From 23e758b36898d5ff6cc0cd2e54c498b24a15b0dd Mon Sep 17 00:00:00 2001 From: Irina Tirdea Date: Thu, 24 Mar 2016 11:29:26 +0200 Subject: iio: accel: bmc150: use available_scan_masks Use available_scan_masks to allow the iio core to select the data to send to userspace depending on which axes are enabled, instead of doing this in the driver's interrupt handler. Signed-off-by: Irina Tirdea Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c index c73331f7..cc52366 100644 --- a/drivers/iio/accel/bmc150-accel-core.c +++ b/drivers/iio/accel/bmc150-accel-core.c @@ -138,6 +138,7 @@ enum bmc150_accel_axis { AXIS_X, AXIS_Y, AXIS_Z, + AXIS_MAX, }; enum bmc150_power_modes { @@ -1104,6 +1105,10 @@ static const struct iio_info bmc150_accel_info_fifo = { .driver_module = THIS_MODULE, }; +static const unsigned long bmc150_accel_scan_masks[] = { + BIT(AXIS_X) | BIT(AXIS_Y) | BIT(AXIS_Z), + 0}; + static irqreturn_t bmc150_accel_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; @@ -1113,8 +1118,7 @@ static irqreturn_t bmc150_accel_trigger_handler(int irq, void *p) unsigned int raw_val; mutex_lock(&data->mutex); - for_each_set_bit(bit, indio_dev->active_scan_mask, - indio_dev->masklength) { + for (bit = 0; bit < AXIS_MAX; bit++) { ret = regmap_bulk_read(data->regmap, BMC150_ACCEL_AXIS_TO_REG(bit), &raw_val, 2); @@ -1574,6 +1578,7 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq, indio_dev->channels = data->chip_info->channels; indio_dev->num_channels = data->chip_info->num_channels; indio_dev->name = name ? name : data->chip_info->name; + indio_dev->available_scan_masks = bmc150_accel_scan_masks; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &bmc150_accel_info; -- cgit v0.10.2 From 1715e0ccd3b8cd4c1ee76076e1e7452b113be193 Mon Sep 17 00:00:00 2001 From: Irina Tirdea Date: Thu, 24 Mar 2016 11:29:27 +0200 Subject: iio: accel: bmc150: optimize transfers in trigger handler Some i2c busses (e.g.: Synopsys DesignWare I2C adapter) need to enable/disable the bus at each i2c transfer and must wait for the enable/disable to happen before sending the data. When reading data in the trigger handler, the bmc150 accel driver does one bus transfer for each axis. This has an impact on the frequency of the accelerometer at high sample rates due to additional delays introduced by the bus at each transfer. Reading all axis values in one bus transfer reduces the delays introduced by the bus. Signed-off-by: Irina Tirdea Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c index cc52366..58df97d 100644 --- a/drivers/iio/accel/bmc150-accel-core.c +++ b/drivers/iio/accel/bmc150-accel-core.c @@ -989,6 +989,7 @@ static const struct iio_event_spec bmc150_accel_event = { .realbits = (bits), \ .storagebits = 16, \ .shift = 16 - (bits), \ + .endianness = IIO_LE, \ }, \ .event_spec = &bmc150_accel_event, \ .num_event_specs = 1 \ @@ -1114,21 +1115,14 @@ static irqreturn_t bmc150_accel_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct bmc150_accel_data *data = iio_priv(indio_dev); - int bit, ret, i = 0; - unsigned int raw_val; + int ret; mutex_lock(&data->mutex); - for (bit = 0; bit < AXIS_MAX; bit++) { - ret = regmap_bulk_read(data->regmap, - BMC150_ACCEL_AXIS_TO_REG(bit), &raw_val, - 2); - if (ret < 0) { - mutex_unlock(&data->mutex); - goto err_read; - } - data->buffer[i++] = raw_val; - } + ret = regmap_bulk_read(data->regmap, BMC150_ACCEL_REG_XOUT_L, + data->buffer, AXIS_MAX * 2); mutex_unlock(&data->mutex); + if (ret < 0) + goto err_read; iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, pf->timestamp); -- cgit v0.10.2 From ee8c5419e06e3a002995f5d1f57c9b5aead331e6 Mon Sep 17 00:00:00 2001 From: Irina Tirdea Date: Thu, 24 Mar 2016 11:29:28 +0200 Subject: iio: gyro: bmg160: use available_scan_masks Use available_scan_masks to allow the iio core to select the data to send to userspace depending on which axes are enabled, instead of doing this in the driver's interrupt handler. Signed-off-by: Irina Tirdea Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c index bbce3b0..8d6e5b1 100644 --- a/drivers/iio/gyro/bmg160_core.c +++ b/drivers/iio/gyro/bmg160_core.c @@ -116,6 +116,7 @@ enum bmg160_axis { AXIS_X, AXIS_Y, AXIS_Z, + AXIS_MAX, }; static const struct { @@ -763,6 +764,10 @@ static const struct iio_info bmg160_info = { .driver_module = THIS_MODULE, }; +static const unsigned long bmg160_accel_scan_masks[] = { + BIT(AXIS_X) | BIT(AXIS_Y) | BIT(AXIS_Z), + 0}; + static irqreturn_t bmg160_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; @@ -772,8 +777,7 @@ static irqreturn_t bmg160_trigger_handler(int irq, void *p) unsigned int val; mutex_lock(&data->mutex); - for_each_set_bit(bit, indio_dev->active_scan_mask, - indio_dev->masklength) { + for (bit = 0; bit < AXIS_MAX; bit++) { ret = regmap_bulk_read(data->regmap, BMG160_AXIS_TO_REG(bit), &val, 2); if (ret < 0) { @@ -1019,6 +1023,7 @@ int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq, indio_dev->channels = bmg160_channels; indio_dev->num_channels = ARRAY_SIZE(bmg160_channels); indio_dev->name = name; + indio_dev->available_scan_masks = bmg160_accel_scan_masks; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &bmg160_info; -- cgit v0.10.2 From 7e3d1eb123d804d2b1088782f458aed5eb36c684 Mon Sep 17 00:00:00 2001 From: Irina Tirdea Date: Thu, 24 Mar 2016 11:29:29 +0200 Subject: iio: accel: bmg160: optimize transfers in trigger handler Some i2c busses (e.g.: Synopsys DesignWare I2C adapter) need to enable/disable the bus at each i2c transfer and must wait for the enable/disable to happen before sending the data. When reading data in the trigger handler, the bmg160 gyro driver does one bus transfer for each axis. This has an impact on the frequency of the accelerometer at high sample rates due to additional delays introduced by the bus at each transfer. Reading all axis values in one bus transfer reduces the delays introduced by the bus. Signed-off-by: Irina Tirdea Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c index 8d6e5b1..43570b8 100644 --- a/drivers/iio/gyro/bmg160_core.c +++ b/drivers/iio/gyro/bmg160_core.c @@ -734,6 +734,7 @@ static const struct iio_event_spec bmg160_event = { .sign = 's', \ .realbits = 16, \ .storagebits = 16, \ + .endianness = IIO_LE, \ }, \ .event_spec = &bmg160_event, \ .num_event_specs = 1 \ @@ -773,20 +774,14 @@ static irqreturn_t bmg160_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct bmg160_data *data = iio_priv(indio_dev); - int bit, ret, i = 0; - unsigned int val; + int ret; mutex_lock(&data->mutex); - for (bit = 0; bit < AXIS_MAX; bit++) { - ret = regmap_bulk_read(data->regmap, BMG160_AXIS_TO_REG(bit), - &val, 2); - if (ret < 0) { - mutex_unlock(&data->mutex); - goto err; - } - data->buffer[i++] = ret; - } + ret = regmap_bulk_read(data->regmap, BMG160_REG_XOUT_L, + data->buffer, AXIS_MAX * 2); mutex_unlock(&data->mutex); + if (ret < 0) + goto err; iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, pf->timestamp); -- cgit v0.10.2 From 09cf1b321ad353eeaeddcfd33771b34ce2a61640 Mon Sep 17 00:00:00 2001 From: Adriana Reus Date: Thu, 24 Mar 2016 11:29:30 +0200 Subject: iio: accel: kxcjk-1013: use available_scan_masks Use available_scan_masks to allow the iio core to select the data to send to userspace depending on which axes are enabled, instead of doing this in the driver's interrupt handler. Signed-off-by: Adriana Reus Signed-off-by: Irina Tirdea Acked-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c index edec1d0..3861fe9 100644 --- a/drivers/iio/accel/kxcjk-1013.c +++ b/drivers/iio/accel/kxcjk-1013.c @@ -115,6 +115,7 @@ enum kxcjk1013_axis { AXIS_X, AXIS_Y, AXIS_Z, + AXIS_MAX, }; enum kxcjk1013_mode { @@ -953,6 +954,8 @@ static const struct iio_info kxcjk1013_info = { .driver_module = THIS_MODULE, }; +static const unsigned long kxcjk1013_scan_masks[] = {0x7, 0}; + static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; @@ -962,8 +965,7 @@ static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p) mutex_lock(&data->mutex); - for_each_set_bit(bit, indio_dev->active_scan_mask, - indio_dev->masklength) { + for (bit = 0; bit < AXIS_MAX; bit++) { ret = kxcjk1013_get_acc_reg(data, bit); if (ret < 0) { mutex_unlock(&data->mutex); @@ -1204,6 +1206,7 @@ static int kxcjk1013_probe(struct i2c_client *client, indio_dev->dev.parent = &client->dev; indio_dev->channels = kxcjk1013_channels; indio_dev->num_channels = ARRAY_SIZE(kxcjk1013_channels); + indio_dev->available_scan_masks = kxcjk1013_scan_masks; indio_dev->name = name; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &kxcjk1013_info; -- cgit v0.10.2 From 65ae47b0ec535a008e53578abc11082f3b742f75 Mon Sep 17 00:00:00 2001 From: Adriana Reus Date: Thu, 24 Mar 2016 11:29:31 +0200 Subject: iio: accel: kxcjk-1013: optimize i2c transfers in trigger handler Some i2c busses (e.g.: Synopsys DesignWare I2C adapter) need to enable/disable the bus at each i2c transfer and must wait for the enable/disable to happen before sending the data. When reading data in the trigger handler, the kxcjk-1013 accel driver does one i2c transfer for each axis. This has an impact on the frequency of the accelerometer at high sample rates due to additional delays introduced by the i2c bus at each transfer. Reading all axis values in one i2c transfer reduces the delays introduced by the i2c bus. Uses i2c_smbus_read_i2c_block_data_or_emulated that will fallback to reading each axis as a separate word in case i2c block read is not supported. Signed-off-by: Adriana Reus Signed-off-by: Irina Tirdea Acked-by: Jonathan Cameron Acked-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c index 3861fe9..4881856 100644 --- a/drivers/iio/accel/kxcjk-1013.c +++ b/drivers/iio/accel/kxcjk-1013.c @@ -923,7 +923,7 @@ static const struct iio_event_spec kxcjk1013_event = { .realbits = 12, \ .storagebits = 16, \ .shift = 4, \ - .endianness = IIO_CPU, \ + .endianness = IIO_LE, \ }, \ .event_spec = &kxcjk1013_event, \ .num_event_specs = 1 \ @@ -961,19 +961,16 @@ static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct kxcjk1013_data *data = iio_priv(indio_dev); - int bit, ret, i = 0; + int ret; mutex_lock(&data->mutex); - - for (bit = 0; bit < AXIS_MAX; bit++) { - ret = kxcjk1013_get_acc_reg(data, bit); - if (ret < 0) { - mutex_unlock(&data->mutex); - goto err; - } - data->buffer[i++] = ret; - } + ret = i2c_smbus_read_i2c_block_data_or_emulated(data->client, + KXCJK1013_REG_XOUT_L, + AXIS_MAX * 2, + (u8 *)data->buffer); mutex_unlock(&data->mutex); + if (ret < 0) + goto err; iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, data->timestamp); -- cgit v0.10.2 From b1532909decca12e0527473870cec1d57677f916 Mon Sep 17 00:00:00 2001 From: Irina Tirdea Date: Thu, 24 Mar 2016 11:08:38 +0200 Subject: iio: remove unused gpio consumer.h include GPIO handling code has been removed from the drivers (since this is now handled by the ACPI core) in commit 0f0796509c07 ("iio: remove gpio interrupt probing from drivers that use a single interrupt"). Remove the include for linux/gpio/consumer.h since it is no longer used. Signed-off-by: Irina Tirdea Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c index 58df97d..f3d096f 100644 --- a/drivers/iio/accel/bmc150-accel-core.c +++ b/drivers/iio/accel/bmc150-accel-core.c @@ -25,7 +25,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c index 4881856..bfe219a 100644 --- a/drivers/iio/accel/kxcjk-1013.c +++ b/drivers/iio/accel/kxcjk-1013.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c index fa7d362..bb05f3e 100644 --- a/drivers/iio/accel/mma9553.c +++ b/drivers/iio/accel/mma9553.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/iio/accel/stk8312.c b/drivers/iio/accel/stk8312.c index 85fe7f7..e31023d 100644 --- a/drivers/iio/accel/stk8312.c +++ b/drivers/iio/accel/stk8312.c @@ -11,7 +11,6 @@ */ #include -#include #include #include #include diff --git a/drivers/iio/accel/stk8ba50.c b/drivers/iio/accel/stk8ba50.c index 5709d9e..300d955 100644 --- a/drivers/iio/accel/stk8ba50.c +++ b/drivers/iio/accel/stk8ba50.c @@ -11,7 +11,6 @@ */ #include -#include #include #include #include diff --git a/drivers/iio/imu/kmx61.c b/drivers/iio/imu/kmx61.c index e5306b4..2e7dd57 100644 --- a/drivers/iio/imu/kmx61.c +++ b/drivers/iio/imu/kmx61.c @@ -14,7 +14,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c index 42d334b..9e847f8 100644 --- a/drivers/iio/light/stk3310.c +++ b/drivers/iio/light/stk3310.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c index ffcb75e..0e9da18 100644 --- a/drivers/iio/magnetometer/bmc150_magn.c +++ b/drivers/iio/magnetometer/bmc150_magn.c @@ -23,7 +23,6 @@ #include #include #include -#include #include #include #include -- cgit v0.10.2 From fb12b6c725a3936bedaa7fac87432f0ad0d01599 Mon Sep 17 00:00:00 2001 From: Irina Tirdea Date: Thu, 24 Mar 2016 11:05:09 +0200 Subject: iio: remove gpio interrupt probing from drivers that use a single interrupt Commit 845c877009cf014b ("i2c / ACPI: Assign IRQ for devices that have GpioInt automatically") automatically assigns the first ACPI GPIO interrupt in client->irq, so we can remove the probing code from drivers that use only one interrupt. Commit 0f0796509c07c1c7 ("iio: remove gpio interrupt probing from drivers that use a single interrupt") removes gpio interrupt probing from most drivers. This patch cleans the remaining ones. Signed-off-by: Irina Tirdea Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/mxc4005.c b/drivers/iio/accel/mxc4005.c index e72e218..c23f47a 100644 --- a/drivers/iio/accel/mxc4005.c +++ b/drivers/iio/accel/mxc4005.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include #include @@ -380,31 +379,6 @@ static const struct iio_trigger_ops mxc4005_trigger_ops = { .owner = THIS_MODULE, }; -static int mxc4005_gpio_probe(struct i2c_client *client, - struct mxc4005_data *data) -{ - struct device *dev; - struct gpio_desc *gpio; - int ret; - - if (!client) - return -EINVAL; - - dev = &client->dev; - - gpio = devm_gpiod_get_index(dev, "mxc4005_int", 0, GPIOD_IN); - if (IS_ERR(gpio)) { - dev_err(dev, "failed to get acpi gpio index\n"); - return PTR_ERR(gpio); - } - - ret = gpiod_to_irq(gpio); - - dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret); - - return ret; -} - static int mxc4005_chip_init(struct mxc4005_data *data) { int ret; @@ -470,9 +444,6 @@ static int mxc4005_probe(struct i2c_client *client, return ret; } - if (client->irq < 0) - client->irq = mxc4005_gpio_probe(client, data); - if (client->irq > 0) { data->dready_trig = devm_iio_trigger_alloc(&client->dev, "%s-dev%d", diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c index 43570b8..2493bb1 100644 --- a/drivers/iio/gyro/bmg160_core.c +++ b/drivers/iio/gyro/bmg160_core.c @@ -17,7 +17,6 @@ #include #include #include -#include #include #include #include @@ -31,7 +30,6 @@ #include "bmg160.h" #define BMG160_IRQ_NAME "bmg160_event" -#define BMG160_GPIO_NAME "gpio_int" #define BMG160_REG_CHIP_ID 0x00 #define BMG160_CHIP_ID_VAL 0x0F @@ -954,29 +952,6 @@ static const struct iio_buffer_setup_ops bmg160_buffer_setup_ops = { .postdisable = bmg160_buffer_postdisable, }; -static int bmg160_gpio_probe(struct bmg160_data *data) - -{ - struct device *dev; - struct gpio_desc *gpio; - - dev = data->dev; - - /* data ready gpio interrupt pin */ - gpio = devm_gpiod_get_index(dev, BMG160_GPIO_NAME, 0, GPIOD_IN); - if (IS_ERR(gpio)) { - dev_err(dev, "acpi gpio get index failed\n"); - return PTR_ERR(gpio); - } - - data->irq = gpiod_to_irq(gpio); - - dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), - data->irq); - - return 0; -} - static const char *bmg160_match_acpi_device(struct device *dev) { const struct acpi_device_id *id; @@ -1022,9 +997,6 @@ int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq, indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &bmg160_info; - if (data->irq <= 0) - bmg160_gpio_probe(data); - if (data->irq > 0) { ret = devm_request_threaded_irq(dev, data->irq, -- cgit v0.10.2 From 793d6b5ea80c9bba8de40b720991b436fa5e174d Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 24 Mar 2016 09:39:14 +0100 Subject: iio: tools: make generic_buffer look for "-trigger" All the ST Sensors use the old "-trigger" rather than the standard "-devN" new standard suffix for triggers. Now much to do about it since it is ABI, but make the testing tools recognize it too. Signed-off-by: Linus Walleij Signed-off-by: Jonathan Cameron diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c index 01c4f67..c42b7f8 100644 --- a/tools/iio/generic_buffer.c +++ b/tools/iio/generic_buffer.c @@ -304,7 +304,19 @@ int main(int argc, char **argv) } } - /* Verify the trigger exists */ + /* Look for this "-devN" trigger */ + trig_num = find_type_by_name(trigger_name, "trigger"); + if (trig_num < 0) { + /* OK try the simpler "-trigger" suffix instead */ + free(trigger_name); + ret = asprintf(&trigger_name, + "%s-trigger", device_name); + if (ret < 0) { + ret = -ENOMEM; + goto error_free_dev_dir_name; + } + } + trig_num = find_type_by_name(trigger_name, "trigger"); if (trig_num < 0) { fprintf(stderr, "Failed to find the trigger %s\n", -- cgit v0.10.2 From 8cb359e3a1f6318f971bec281623613f48b711be Mon Sep 17 00:00:00 2001 From: Luis de Bethencourt Date: Wed, 23 Mar 2016 12:34:41 +0000 Subject: iio: buffer: add missing descriptions in iio_buffer_access_funcs The members buffer_group and attrs of iio_buffer_access_funcs have no descriptions for the documentation. Adding them. Fixes: 08e7e0adaa17 ("iio: buffer: Allocate standard attributes in the core") Signed-off-by: Luis de Bethencourt Signed-off-by: Jonathan Cameron diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h index 2ec3ad5..70a5164 100644 --- a/include/linux/iio/buffer.h +++ b/include/linux/iio/buffer.h @@ -83,10 +83,12 @@ struct iio_buffer_access_funcs { * @access: [DRIVER] buffer access functions associated with the * implementation. * @scan_el_dev_attr_list:[INTERN] list of scan element related attributes. + * @buffer_group: [INTERN] attributes of the buffer group * @scan_el_group: [DRIVER] attribute group for those attributes not * created from the iio_chan_info array. * @pollq: [INTERN] wait queue to allow for polling on the buffer. * @stufftoread: [INTERN] flag to indicate new data. + * @attrs: [INTERN] standard attributes of the buffer * @demux_list: [INTERN] list of operations required to demux the scan. * @demux_bounce: [INTERN] buffer for doing gather from incoming scan. * @buffer_list: [INTERN] entry in the devices list of current buffers. -- cgit v0.10.2 From 6154a108faafe5f7fe08cee933b899b013b457d9 Mon Sep 17 00:00:00 2001 From: Ksenija Stanojevic Date: Wed, 23 Mar 2016 12:06:34 +0100 Subject: Staging: iio: ad7606: Fix sparse endian warning Fix following sparse warning: warning: cast to restricted __be16 Signed-off-by: Ksenija Stanojevic Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/adc/ad7606_spi.c b/drivers/staging/iio/adc/ad7606_spi.c index d873a51..825da07 100644 --- a/drivers/staging/iio/adc/ad7606_spi.c +++ b/drivers/staging/iio/adc/ad7606_spi.c @@ -21,7 +21,8 @@ static int ad7606_spi_read_block(struct device *dev, { struct spi_device *spi = to_spi_device(dev); int i, ret; - unsigned short *data = buf; + unsigned short *data; + __be16 *bdata = buf; ret = spi_read(spi, buf, count * 2); if (ret < 0) { @@ -30,7 +31,7 @@ static int ad7606_spi_read_block(struct device *dev, } for (i = 0; i < count; i++) - data[i] = be16_to_cpu(data[i]); + data[i] = be16_to_cpu(bdata[i]); return 0; } -- cgit v0.10.2 From 22d199a53910e2b1666bf873f10779a66844c126 Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Wed, 23 Mar 2016 09:57:20 +0100 Subject: iio: potentiometer: add driver for Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X The following functionalities are supported: - write, read from volatile memory Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/22060b.pdf Signed-off-by: Slawomir Stepien Reviewed-by: Joachim Eastwood Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt b/Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt new file mode 100644 index 0000000..3ccba16 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/potentiometer/mcp4131.txt @@ -0,0 +1,84 @@ +* Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X Digital Potentiometer + driver + +The node for this driver must be a child node of a SPI controller, hence +all mandatory properties described in + + Documentation/devicetree/bindings/spi/spi-bus.txt + +must be specified. + +Required properties: + - compatible: Must be one of the following, depending on the + model: + "microchip,mcp4131-502" + "microchip,mcp4131-103" + "microchip,mcp4131-503" + "microchip,mcp4131-104" + "microchip,mcp4132-502" + "microchip,mcp4132-103" + "microchip,mcp4132-503" + "microchip,mcp4132-104" + "microchip,mcp4141-502" + "microchip,mcp4141-103" + "microchip,mcp4141-503" + "microchip,mcp4141-104" + "microchip,mcp4142-502" + "microchip,mcp4142-103" + "microchip,mcp4142-503" + "microchip,mcp4142-104" + "microchip,mcp4151-502" + "microchip,mcp4151-103" + "microchip,mcp4151-503" + "microchip,mcp4151-104" + "microchip,mcp4152-502" + "microchip,mcp4152-103" + "microchip,mcp4152-503" + "microchip,mcp4152-104" + "microchip,mcp4161-502" + "microchip,mcp4161-103" + "microchip,mcp4161-503" + "microchip,mcp4161-104" + "microchip,mcp4162-502" + "microchip,mcp4162-103" + "microchip,mcp4162-503" + "microchip,mcp4162-104" + "microchip,mcp4231-502" + "microchip,mcp4231-103" + "microchip,mcp4231-503" + "microchip,mcp4231-104" + "microchip,mcp4232-502" + "microchip,mcp4232-103" + "microchip,mcp4232-503" + "microchip,mcp4232-104" + "microchip,mcp4241-502" + "microchip,mcp4241-103" + "microchip,mcp4241-503" + "microchip,mcp4241-104" + "microchip,mcp4242-502" + "microchip,mcp4242-103" + "microchip,mcp4242-503" + "microchip,mcp4242-104" + "microchip,mcp4251-502" + "microchip,mcp4251-103" + "microchip,mcp4251-503" + "microchip,mcp4251-104" + "microchip,mcp4252-502" + "microchip,mcp4252-103" + "microchip,mcp4252-503" + "microchip,mcp4252-104" + "microchip,mcp4261-502" + "microchip,mcp4261-103" + "microchip,mcp4261-503" + "microchip,mcp4261-104" + "microchip,mcp4262-502" + "microchip,mcp4262-103" + "microchip,mcp4262-503" + "microchip,mcp4262-104" + +Example: +mcp4131: mcp4131@0 { + compatible = "mcp4131-502"; + reg = <0>; + spi-max-frequency = <500000>; +}; diff --git a/drivers/iio/potentiometer/Kconfig b/drivers/iio/potentiometer/Kconfig index ffc735c..7ea069b 100644 --- a/drivers/iio/potentiometer/Kconfig +++ b/drivers/iio/potentiometer/Kconfig @@ -5,6 +5,24 @@ menu "Digital potentiometers" +config MCP4131 + tristate "Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X Digital Potentiometer driver" + depends on SPI + help + Say yes here to build support for the Microchip + MCP4131, MCP4132, + MCP4141, MCP4142, + MCP4151, MCP4152, + MCP4161, MCP4162, + MCP4231, MCP4232, + MCP4241, MCP4242, + MCP4251, MCP4252, + MCP4261, MCP4262, + digital potentiomenter chips. + + To compile this driver as a module, choose M here: the + module will be called mcp4131. + config MCP4531 tristate "Microchip MCP45xx/MCP46xx Digital Potentiometer driver" depends on I2C diff --git a/drivers/iio/potentiometer/Makefile b/drivers/iio/potentiometer/Makefile index b563b49..91a80f8 100644 --- a/drivers/iio/potentiometer/Makefile +++ b/drivers/iio/potentiometer/Makefile @@ -3,5 +3,6 @@ # # When adding new entries keep the list in alphabetical order +obj-$(CONFIG_MCP4131) += mcp4131.o obj-$(CONFIG_MCP4531) += mcp4531.o obj-$(CONFIG_TPL0102) += tpl0102.o diff --git a/drivers/iio/potentiometer/mcp4131.c b/drivers/iio/potentiometer/mcp4131.c new file mode 100644 index 0000000..4e7e2c6 --- /dev/null +++ b/drivers/iio/potentiometer/mcp4131.c @@ -0,0 +1,494 @@ +/* + * Industrial I/O driver for Microchip digital potentiometers + * + * Copyright (c) 2016 Slawomir Stepien + * Based on: Peter Rosin's code from mcp4531.c + * + * Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/22060b.pdf + * + * DEVID #Wipers #Positions Resistor Opts (kOhm) + * mcp4131 1 129 5, 10, 50, 100 + * mcp4132 1 129 5, 10, 50, 100 + * mcp4141 1 129 5, 10, 50, 100 + * mcp4142 1 129 5, 10, 50, 100 + * mcp4151 1 257 5, 10, 50, 100 + * mcp4152 1 257 5, 10, 50, 100 + * mcp4161 1 257 5, 10, 50, 100 + * mcp4162 1 257 5, 10, 50, 100 + * mcp4231 2 129 5, 10, 50, 100 + * mcp4232 2 129 5, 10, 50, 100 + * mcp4241 2 129 5, 10, 50, 100 + * mcp4242 2 129 5, 10, 50, 100 + * mcp4251 2 257 5, 10, 50, 100 + * mcp4252 2 257 5, 10, 50, 100 + * mcp4261 2 257 5, 10, 50, 100 + * mcp4262 2 257 5, 10, 50, 100 + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +/* + * TODO: + * 1. Write wiper setting to EEPROM for EEPROM capable models. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MCP4131_WRITE (0x00 << 2) +#define MCP4131_READ (0x03 << 2) + +#define MCP4131_WIPER_SHIFT 4 +#define MCP4131_CMDERR(r) ((r[0]) & 0x02) +#define MCP4131_RAW(r) ((r[0]) == 0xff ? 0x100 : (r[1])) + +struct mcp4131_cfg { + int wipers; + int max_pos; + int kohms; +}; + +enum mcp4131_type { + MCP413x_502 = 0, + MCP413x_103, + MCP413x_503, + MCP413x_104, + MCP414x_502, + MCP414x_103, + MCP414x_503, + MCP414x_104, + MCP415x_502, + MCP415x_103, + MCP415x_503, + MCP415x_104, + MCP416x_502, + MCP416x_103, + MCP416x_503, + MCP416x_104, + MCP423x_502, + MCP423x_103, + MCP423x_503, + MCP423x_104, + MCP424x_502, + MCP424x_103, + MCP424x_503, + MCP424x_104, + MCP425x_502, + MCP425x_103, + MCP425x_503, + MCP425x_104, + MCP426x_502, + MCP426x_103, + MCP426x_503, + MCP426x_104, +}; + +static const struct mcp4131_cfg mcp4131_cfg[] = { + [MCP413x_502] = { .wipers = 1, .max_pos = 128, .kohms = 5, }, + [MCP413x_103] = { .wipers = 1, .max_pos = 128, .kohms = 10, }, + [MCP413x_503] = { .wipers = 1, .max_pos = 128, .kohms = 50, }, + [MCP413x_104] = { .wipers = 1, .max_pos = 128, .kohms = 100, }, + [MCP414x_502] = { .wipers = 1, .max_pos = 128, .kohms = 5, }, + [MCP414x_103] = { .wipers = 1, .max_pos = 128, .kohms = 10, }, + [MCP414x_503] = { .wipers = 1, .max_pos = 128, .kohms = 50, }, + [MCP414x_104] = { .wipers = 1, .max_pos = 128, .kohms = 100, }, + [MCP415x_502] = { .wipers = 1, .max_pos = 256, .kohms = 5, }, + [MCP415x_103] = { .wipers = 1, .max_pos = 256, .kohms = 10, }, + [MCP415x_503] = { .wipers = 1, .max_pos = 256, .kohms = 50, }, + [MCP415x_104] = { .wipers = 1, .max_pos = 256, .kohms = 100, }, + [MCP416x_502] = { .wipers = 1, .max_pos = 256, .kohms = 5, }, + [MCP416x_103] = { .wipers = 1, .max_pos = 256, .kohms = 10, }, + [MCP416x_503] = { .wipers = 1, .max_pos = 256, .kohms = 50, }, + [MCP416x_104] = { .wipers = 1, .max_pos = 256, .kohms = 100, }, + [MCP423x_502] = { .wipers = 2, .max_pos = 128, .kohms = 5, }, + [MCP423x_103] = { .wipers = 2, .max_pos = 128, .kohms = 10, }, + [MCP423x_503] = { .wipers = 2, .max_pos = 128, .kohms = 50, }, + [MCP423x_104] = { .wipers = 2, .max_pos = 128, .kohms = 100, }, + [MCP424x_502] = { .wipers = 2, .max_pos = 128, .kohms = 5, }, + [MCP424x_103] = { .wipers = 2, .max_pos = 128, .kohms = 10, }, + [MCP424x_503] = { .wipers = 2, .max_pos = 128, .kohms = 50, }, + [MCP424x_104] = { .wipers = 2, .max_pos = 128, .kohms = 100, }, + [MCP425x_502] = { .wipers = 2, .max_pos = 256, .kohms = 5, }, + [MCP425x_103] = { .wipers = 2, .max_pos = 256, .kohms = 10, }, + [MCP425x_503] = { .wipers = 2, .max_pos = 256, .kohms = 50, }, + [MCP425x_104] = { .wipers = 2, .max_pos = 256, .kohms = 100, }, + [MCP426x_502] = { .wipers = 2, .max_pos = 256, .kohms = 5, }, + [MCP426x_103] = { .wipers = 2, .max_pos = 256, .kohms = 10, }, + [MCP426x_503] = { .wipers = 2, .max_pos = 256, .kohms = 50, }, + [MCP426x_104] = { .wipers = 2, .max_pos = 256, .kohms = 100, }, +}; + +struct mcp4131_data { + struct spi_device *spi; + const struct mcp4131_cfg *cfg; + struct mutex lock; + u8 buf[2] ____cacheline_aligned; +}; + +#define MCP4131_CHANNEL(ch) { \ + .type = IIO_RESISTANCE, \ + .indexed = 1, \ + .output = 1, \ + .channel = (ch), \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ +} + +static const struct iio_chan_spec mcp4131_channels[] = { + MCP4131_CHANNEL(0), + MCP4131_CHANNEL(1), +}; + +static int mcp4131_read(struct spi_device *spi, void *buf, size_t len) +{ + struct spi_transfer t = { + .tx_buf = buf, /* We need to send addr, cmd and 12 bits */ + .rx_buf = buf, + .len = len, + }; + struct spi_message m; + + spi_message_init(&m); + spi_message_add_tail(&t, &m); + + return spi_sync(spi, &m); +} + +static int mcp4131_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + int err; + struct mcp4131_data *data = iio_priv(indio_dev); + int address = chan->channel; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + mutex_lock(&data->lock); + + data->buf[0] = (address << MCP4131_WIPER_SHIFT) | MCP4131_READ; + data->buf[1] = 0; + + err = mcp4131_read(data->spi, data->buf, 2); + if (err) { + mutex_unlock(&data->lock); + return err; + } + + /* Error, bad address/command combination */ + if (!MCP4131_CMDERR(data->buf)) { + mutex_unlock(&data->lock); + return -EIO; + } + + *val = MCP4131_RAW(data->buf); + mutex_unlock(&data->lock); + + return IIO_VAL_INT; + + case IIO_CHAN_INFO_SCALE: + *val = 1000 * data->cfg->kohms; + *val2 = data->cfg->max_pos; + return IIO_VAL_FRACTIONAL; + } + + return -EINVAL; +} + +static int mcp4131_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + int err; + struct mcp4131_data *data = iio_priv(indio_dev); + int address = chan->channel << MCP4131_WIPER_SHIFT; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + if (val > data->cfg->max_pos || val < 0) + return -EINVAL; + break; + + default: + return -EINVAL; + } + + mutex_lock(&data->lock); + + data->buf[0] = address << MCP4131_WIPER_SHIFT; + data->buf[0] |= MCP4131_WRITE | (val >> 8); + data->buf[1] = val & 0xFF; /* 8 bits here */ + + err = spi_write(data->spi, data->buf, 2); + mutex_unlock(&data->lock); + + return err; +} + +static const struct iio_info mcp4131_info = { + .read_raw = mcp4131_read_raw, + .write_raw = mcp4131_write_raw, + .driver_module = THIS_MODULE, +}; + +static int mcp4131_probe(struct spi_device *spi) +{ + int err; + struct device *dev = &spi->dev; + unsigned long devid = spi_get_device_id(spi)->driver_data; + struct mcp4131_data *data; + struct iio_dev *indio_dev; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + spi_set_drvdata(spi, indio_dev); + data->spi = spi; + data->cfg = &mcp4131_cfg[devid]; + + mutex_init(&data->lock); + + indio_dev->dev.parent = dev; + indio_dev->info = &mcp4131_info; + indio_dev->channels = mcp4131_channels; + indio_dev->num_channels = data->cfg->wipers; + indio_dev->name = spi_get_device_id(spi)->name; + + err = devm_iio_device_register(dev, indio_dev); + if (err) { + dev_info(&spi->dev, "Unable to register %s\n", indio_dev->name); + return err; + } + + return 0; +} + +#if defined(CONFIG_OF) +static const struct of_device_id mcp4131_dt_ids[] = { + { .compatible = "microchip,mcp4131-502", + .data = &mcp4131_cfg[MCP413x_502] }, + { .compatible = "microchip,mcp4131-103", + .data = &mcp4131_cfg[MCP413x_103] }, + { .compatible = "microchip,mcp4131-503", + .data = &mcp4131_cfg[MCP413x_503] }, + { .compatible = "microchip,mcp4131-104", + .data = &mcp4131_cfg[MCP413x_104] }, + { .compatible = "microchip,mcp4132-502", + .data = &mcp4131_cfg[MCP413x_502] }, + { .compatible = "microchip,mcp4132-103", + .data = &mcp4131_cfg[MCP413x_103] }, + { .compatible = "microchip,mcp4132-503", + .data = &mcp4131_cfg[MCP413x_503] }, + { .compatible = "microchip,mcp4132-104", + .data = &mcp4131_cfg[MCP413x_104] }, + { .compatible = "microchip,mcp4141-502", + .data = &mcp4131_cfg[MCP414x_502] }, + { .compatible = "microchip,mcp4141-103", + .data = &mcp4131_cfg[MCP414x_103] }, + { .compatible = "microchip,mcp4141-503", + .data = &mcp4131_cfg[MCP414x_503] }, + { .compatible = "microchip,mcp4141-104", + .data = &mcp4131_cfg[MCP414x_104] }, + { .compatible = "microchip,mcp4142-502", + .data = &mcp4131_cfg[MCP414x_502] }, + { .compatible = "microchip,mcp4142-103", + .data = &mcp4131_cfg[MCP414x_103] }, + { .compatible = "microchip,mcp4142-503", + .data = &mcp4131_cfg[MCP414x_503] }, + { .compatible = "microchip,mcp4142-104", + .data = &mcp4131_cfg[MCP414x_104] }, + { .compatible = "microchip,mcp4151-502", + .data = &mcp4131_cfg[MCP415x_502] }, + { .compatible = "microchip,mcp4151-103", + .data = &mcp4131_cfg[MCP415x_103] }, + { .compatible = "microchip,mcp4151-503", + .data = &mcp4131_cfg[MCP415x_503] }, + { .compatible = "microchip,mcp4151-104", + .data = &mcp4131_cfg[MCP415x_104] }, + { .compatible = "microchip,mcp4152-502", + .data = &mcp4131_cfg[MCP415x_502] }, + { .compatible = "microchip,mcp4152-103", + .data = &mcp4131_cfg[MCP415x_103] }, + { .compatible = "microchip,mcp4152-503", + .data = &mcp4131_cfg[MCP415x_503] }, + { .compatible = "microchip,mcp4152-104", + .data = &mcp4131_cfg[MCP415x_104] }, + { .compatible = "microchip,mcp4161-502", + .data = &mcp4131_cfg[MCP416x_502] }, + { .compatible = "microchip,mcp4161-103", + .data = &mcp4131_cfg[MCP416x_103] }, + { .compatible = "microchip,mcp4161-503", + .data = &mcp4131_cfg[MCP416x_503] }, + { .compatible = "microchip,mcp4161-104", + .data = &mcp4131_cfg[MCP416x_104] }, + { .compatible = "microchip,mcp4162-502", + .data = &mcp4131_cfg[MCP416x_502] }, + { .compatible = "microchip,mcp4162-103", + .data = &mcp4131_cfg[MCP416x_103] }, + { .compatible = "microchip,mcp4162-503", + .data = &mcp4131_cfg[MCP416x_503] }, + { .compatible = "microchip,mcp4162-104", + .data = &mcp4131_cfg[MCP416x_104] }, + { .compatible = "microchip,mcp4231-502", + .data = &mcp4131_cfg[MCP423x_502] }, + { .compatible = "microchip,mcp4231-103", + .data = &mcp4131_cfg[MCP423x_103] }, + { .compatible = "microchip,mcp4231-503", + .data = &mcp4131_cfg[MCP423x_503] }, + { .compatible = "microchip,mcp4231-104", + .data = &mcp4131_cfg[MCP423x_104] }, + { .compatible = "microchip,mcp4232-502", + .data = &mcp4131_cfg[MCP423x_502] }, + { .compatible = "microchip,mcp4232-103", + .data = &mcp4131_cfg[MCP423x_103] }, + { .compatible = "microchip,mcp4232-503", + .data = &mcp4131_cfg[MCP423x_503] }, + { .compatible = "microchip,mcp4232-104", + .data = &mcp4131_cfg[MCP423x_104] }, + { .compatible = "microchip,mcp4241-502", + .data = &mcp4131_cfg[MCP424x_502] }, + { .compatible = "microchip,mcp4241-103", + .data = &mcp4131_cfg[MCP424x_103] }, + { .compatible = "microchip,mcp4241-503", + .data = &mcp4131_cfg[MCP424x_503] }, + { .compatible = "microchip,mcp4241-104", + .data = &mcp4131_cfg[MCP424x_104] }, + { .compatible = "microchip,mcp4242-502", + .data = &mcp4131_cfg[MCP424x_502] }, + { .compatible = "microchip,mcp4242-103", + .data = &mcp4131_cfg[MCP424x_103] }, + { .compatible = "microchip,mcp4242-503", + .data = &mcp4131_cfg[MCP424x_503] }, + { .compatible = "microchip,mcp4242-104", + .data = &mcp4131_cfg[MCP424x_104] }, + { .compatible = "microchip,mcp4251-502", + .data = &mcp4131_cfg[MCP425x_502] }, + { .compatible = "microchip,mcp4251-103", + .data = &mcp4131_cfg[MCP425x_103] }, + { .compatible = "microchip,mcp4251-503", + .data = &mcp4131_cfg[MCP425x_503] }, + { .compatible = "microchip,mcp4251-104", + .data = &mcp4131_cfg[MCP425x_104] }, + { .compatible = "microchip,mcp4252-502", + .data = &mcp4131_cfg[MCP425x_502] }, + { .compatible = "microchip,mcp4252-103", + .data = &mcp4131_cfg[MCP425x_103] }, + { .compatible = "microchip,mcp4252-503", + .data = &mcp4131_cfg[MCP425x_503] }, + { .compatible = "microchip,mcp4252-104", + .data = &mcp4131_cfg[MCP425x_104] }, + { .compatible = "microchip,mcp4261-502", + .data = &mcp4131_cfg[MCP426x_502] }, + { .compatible = "microchip,mcp4261-103", + .data = &mcp4131_cfg[MCP426x_103] }, + { .compatible = "microchip,mcp4261-503", + .data = &mcp4131_cfg[MCP426x_503] }, + { .compatible = "microchip,mcp4261-104", + .data = &mcp4131_cfg[MCP426x_104] }, + { .compatible = "microchip,mcp4262-502", + .data = &mcp4131_cfg[MCP426x_502] }, + { .compatible = "microchip,mcp4262-103", + .data = &mcp4131_cfg[MCP426x_103] }, + { .compatible = "microchip,mcp4262-503", + .data = &mcp4131_cfg[MCP426x_503] }, + { .compatible = "microchip,mcp4262-104", + .data = &mcp4131_cfg[MCP426x_104] }, + {} +}; +MODULE_DEVICE_TABLE(of, mcp4131_dt_ids); +#endif /* CONFIG_OF */ + +static const struct spi_device_id mcp4131_id[] = { + { "mcp4131-502", MCP413x_502 }, + { "mcp4131-103", MCP413x_103 }, + { "mcp4131-503", MCP413x_503 }, + { "mcp4131-104", MCP413x_104 }, + { "mcp4132-502", MCP413x_502 }, + { "mcp4132-103", MCP413x_103 }, + { "mcp4132-503", MCP413x_503 }, + { "mcp4132-104", MCP413x_104 }, + { "mcp4141-502", MCP414x_502 }, + { "mcp4141-103", MCP414x_103 }, + { "mcp4141-503", MCP414x_503 }, + { "mcp4141-104", MCP414x_104 }, + { "mcp4142-502", MCP414x_502 }, + { "mcp4142-103", MCP414x_103 }, + { "mcp4142-503", MCP414x_503 }, + { "mcp4142-104", MCP414x_104 }, + { "mcp4151-502", MCP415x_502 }, + { "mcp4151-103", MCP415x_103 }, + { "mcp4151-503", MCP415x_503 }, + { "mcp4151-104", MCP415x_104 }, + { "mcp4152-502", MCP415x_502 }, + { "mcp4152-103", MCP415x_103 }, + { "mcp4152-503", MCP415x_503 }, + { "mcp4152-104", MCP415x_104 }, + { "mcp4161-502", MCP416x_502 }, + { "mcp4161-103", MCP416x_103 }, + { "mcp4161-503", MCP416x_503 }, + { "mcp4161-104", MCP416x_104 }, + { "mcp4162-502", MCP416x_502 }, + { "mcp4162-103", MCP416x_103 }, + { "mcp4162-503", MCP416x_503 }, + { "mcp4162-104", MCP416x_104 }, + { "mcp4231-502", MCP423x_502 }, + { "mcp4231-103", MCP423x_103 }, + { "mcp4231-503", MCP423x_503 }, + { "mcp4231-104", MCP423x_104 }, + { "mcp4232-502", MCP423x_502 }, + { "mcp4232-103", MCP423x_103 }, + { "mcp4232-503", MCP423x_503 }, + { "mcp4232-104", MCP423x_104 }, + { "mcp4241-502", MCP424x_502 }, + { "mcp4241-103", MCP424x_103 }, + { "mcp4241-503", MCP424x_503 }, + { "mcp4241-104", MCP424x_104 }, + { "mcp4242-502", MCP424x_502 }, + { "mcp4242-103", MCP424x_103 }, + { "mcp4242-503", MCP424x_503 }, + { "mcp4242-104", MCP424x_104 }, + { "mcp4251-502", MCP425x_502 }, + { "mcp4251-103", MCP425x_103 }, + { "mcp4251-503", MCP425x_503 }, + { "mcp4251-104", MCP425x_104 }, + { "mcp4252-502", MCP425x_502 }, + { "mcp4252-103", MCP425x_103 }, + { "mcp4252-503", MCP425x_503 }, + { "mcp4252-104", MCP425x_104 }, + { "mcp4261-502", MCP426x_502 }, + { "mcp4261-103", MCP426x_103 }, + { "mcp4261-503", MCP426x_503 }, + { "mcp4261-104", MCP426x_104 }, + { "mcp4262-502", MCP426x_502 }, + { "mcp4262-103", MCP426x_103 }, + { "mcp4262-503", MCP426x_503 }, + { "mcp4262-104", MCP426x_104 }, + {} +}; +MODULE_DEVICE_TABLE(spi, mcp4131_id); + +static struct spi_driver mcp4131_driver = { + .driver = { + .name = "mcp4131", + .of_match_table = of_match_ptr(mcp4131_dt_ids), + }, + .probe = mcp4131_probe, + .id_table = mcp4131_id, +}; + +module_spi_driver(mcp4131_driver); + +MODULE_AUTHOR("Slawomir Stepien "); +MODULE_DESCRIPTION("MCP4131 digital potentiometer"); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From 94b24230196da3cd6bd58235137f9a7438983c73 Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Tue, 22 Mar 2016 17:08:45 +0100 Subject: iio:adc:at91-sama5d2: cleanup mode register use Do not erase previous configuration of the mode register when setting the sampling frequency. Signed-off-by: Ludovic Desroches Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index 5bc038f..01ba106 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -66,8 +66,10 @@ #define AT91_SAMA5D2_MR_PRESCAL(v) ((v) << AT91_SAMA5D2_MR_PRESCAL_OFFSET) #define AT91_SAMA5D2_MR_PRESCAL_OFFSET 8 #define AT91_SAMA5D2_MR_PRESCAL_MAX 0xff +#define AT91_SAMA5D2_MR_PRESCAL_MASK GENMASK(15, 8) /* Startup Time */ #define AT91_SAMA5D2_MR_STARTUP(v) ((v) << 16) +#define AT91_SAMA5D2_MR_STARTUP_MASK GENMASK(19, 16) /* Analog Change */ #define AT91_SAMA5D2_MR_ANACH BIT(23) /* Tracking Time */ @@ -226,7 +228,7 @@ static unsigned at91_adc_startup_time(unsigned startup_time_min, static void at91_adc_setup_samp_freq(struct at91_adc_state *st, unsigned freq) { struct iio_dev *indio_dev = iio_priv_to_dev(st); - unsigned f_per, prescal, startup; + unsigned f_per, prescal, startup, mr; f_per = clk_get_rate(st->per_clk); prescal = (f_per / (2 * freq)) - 1; @@ -234,10 +236,11 @@ static void at91_adc_setup_samp_freq(struct at91_adc_state *st, unsigned freq) startup = at91_adc_startup_time(st->soc_info.startup_time, freq / 1000); - at91_adc_writel(st, AT91_SAMA5D2_MR, - AT91_SAMA5D2_MR_TRANSFER(2) - | AT91_SAMA5D2_MR_STARTUP(startup) - | AT91_SAMA5D2_MR_PRESCAL(prescal)); + mr = at91_adc_readl(st, AT91_SAMA5D2_MR); + mr &= ~(AT91_SAMA5D2_MR_STARTUP_MASK | AT91_SAMA5D2_MR_PRESCAL_MASK); + mr |= AT91_SAMA5D2_MR_STARTUP(startup); + mr |= AT91_SAMA5D2_MR_PRESCAL(prescal); + at91_adc_writel(st, AT91_SAMA5D2_MR, mr); dev_dbg(&indio_dev->dev, "freq: %u, startup: %u, prescal: %u\n", freq, startup, prescal); @@ -444,6 +447,8 @@ static int at91_adc_probe(struct platform_device *pdev) at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_SWRST); at91_adc_writel(st, AT91_SAMA5D2_IDR, 0xffffffff); + /* Transfer field must be set to 2 according to the datasheet. */ + at91_adc_writel(st, AT91_SAMA5D2_MR, AT91_SAMA5D2_MR_TRANSFER(2)); at91_adc_setup_samp_freq(st, st->soc_info.min_sample_rate); -- cgit v0.10.2 From d65113222c27e2ca0b292a5163ea294428d481b2 Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Tue, 22 Mar 2016 17:08:46 +0100 Subject: iio:adc:at91-sama5d2: add support for differential conversions Add signed differential channels and update the voltage scale for differential conversions. Signed-off-by: Ludovic Desroches Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index 01ba106..07adb10 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -113,8 +113,11 @@ #define AT91_SAMA5D2_CWR 0x44 /* Channel Gain Register */ #define AT91_SAMA5D2_CGR 0x48 + /* Channel Offset Register */ #define AT91_SAMA5D2_COR 0x4c +#define AT91_SAMA5D2_COR_DIFF_OFFSET 16 + /* Channel Data Register 0 */ #define AT91_SAMA5D2_CDR0 0x50 /* Analog Control Register */ @@ -142,7 +145,7 @@ /* Version Register */ #define AT91_SAMA5D2_VERSION 0xfc -#define AT91_SAMA5D2_CHAN(num, addr) \ +#define AT91_SAMA5D2_CHAN_SINGLE(num, addr) \ { \ .type = IIO_VOLTAGE, \ .channel = num, \ @@ -158,6 +161,24 @@ .indexed = 1, \ } +#define AT91_SAMA5D2_CHAN_DIFF(num, num2, addr) \ + { \ + .type = IIO_VOLTAGE, \ + .differential = 1, \ + .channel = num, \ + .channel2 = num2, \ + .address = addr, \ + .scan_type = { \ + .sign = 's', \ + .realbits = 12, \ + }, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ + .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),\ + .datasheet_name = "CH"#num"-CH"#num2, \ + .indexed = 1, \ + } + #define at91_adc_readl(st, reg) readl_relaxed(st->base + reg) #define at91_adc_writel(st, reg, val) writel_relaxed(val, st->base + reg) @@ -187,18 +208,24 @@ struct at91_adc_state { }; static const struct iio_chan_spec at91_adc_channels[] = { - AT91_SAMA5D2_CHAN(0, 0x50), - AT91_SAMA5D2_CHAN(1, 0x54), - AT91_SAMA5D2_CHAN(2, 0x58), - AT91_SAMA5D2_CHAN(3, 0x5c), - AT91_SAMA5D2_CHAN(4, 0x60), - AT91_SAMA5D2_CHAN(5, 0x64), - AT91_SAMA5D2_CHAN(6, 0x68), - AT91_SAMA5D2_CHAN(7, 0x6c), - AT91_SAMA5D2_CHAN(8, 0x70), - AT91_SAMA5D2_CHAN(9, 0x74), - AT91_SAMA5D2_CHAN(10, 0x78), - AT91_SAMA5D2_CHAN(11, 0x7c), + AT91_SAMA5D2_CHAN_SINGLE(0, 0x50), + AT91_SAMA5D2_CHAN_SINGLE(1, 0x54), + AT91_SAMA5D2_CHAN_SINGLE(2, 0x58), + AT91_SAMA5D2_CHAN_SINGLE(3, 0x5c), + AT91_SAMA5D2_CHAN_SINGLE(4, 0x60), + AT91_SAMA5D2_CHAN_SINGLE(5, 0x64), + AT91_SAMA5D2_CHAN_SINGLE(6, 0x68), + AT91_SAMA5D2_CHAN_SINGLE(7, 0x6c), + AT91_SAMA5D2_CHAN_SINGLE(8, 0x70), + AT91_SAMA5D2_CHAN_SINGLE(9, 0x74), + AT91_SAMA5D2_CHAN_SINGLE(10, 0x78), + AT91_SAMA5D2_CHAN_SINGLE(11, 0x7c), + AT91_SAMA5D2_CHAN_DIFF(0, 1, 0x50), + AT91_SAMA5D2_CHAN_DIFF(2, 3, 0x58), + AT91_SAMA5D2_CHAN_DIFF(4, 5, 0x60), + AT91_SAMA5D2_CHAN_DIFF(6, 7, 0x68), + AT91_SAMA5D2_CHAN_DIFF(8, 9, 0x70), + AT91_SAMA5D2_CHAN_DIFF(10, 11, 0x78), }; static unsigned at91_adc_startup_time(unsigned startup_time_min, @@ -281,6 +308,7 @@ static int at91_adc_read_raw(struct iio_dev *indio_dev, int *val, int *val2, long mask) { struct at91_adc_state *st = iio_priv(indio_dev); + u32 cor = 0; int ret; switch (mask) { @@ -289,6 +317,11 @@ static int at91_adc_read_raw(struct iio_dev *indio_dev, st->chan = chan; + if (chan->differential) + cor = (BIT(chan->channel) | BIT(chan->channel2)) << + AT91_SAMA5D2_COR_DIFF_OFFSET; + + at91_adc_writel(st, AT91_SAMA5D2_COR, cor); at91_adc_writel(st, AT91_SAMA5D2_CHER, BIT(chan->channel)); at91_adc_writel(st, AT91_SAMA5D2_IER, BIT(chan->channel)); at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_START); @@ -301,6 +334,8 @@ static int at91_adc_read_raw(struct iio_dev *indio_dev, if (ret > 0) { *val = st->conversion_value; + if (chan->scan_type.sign == 's') + *val = sign_extend32(*val, 11); ret = IIO_VAL_INT; st->conversion_done = false; } @@ -313,6 +348,8 @@ static int at91_adc_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_SCALE: *val = st->vref_uv / 1000; + if (chan->differential) + *val *= 2; *val2 = chan->scan_type.realbits; return IIO_VAL_FRACTIONAL_LOG2; @@ -447,8 +484,12 @@ static int at91_adc_probe(struct platform_device *pdev) at91_adc_writel(st, AT91_SAMA5D2_CR, AT91_SAMA5D2_CR_SWRST); at91_adc_writel(st, AT91_SAMA5D2_IDR, 0xffffffff); - /* Transfer field must be set to 2 according to the datasheet. */ - at91_adc_writel(st, AT91_SAMA5D2_MR, AT91_SAMA5D2_MR_TRANSFER(2)); + /* + * Transfer field must be set to 2 according to the datasheet and + * allows different analog settings for each channel. + */ + at91_adc_writel(st, AT91_SAMA5D2_MR, + AT91_SAMA5D2_MR_TRANSFER(2) | AT91_SAMA5D2_MR_ANACH); at91_adc_setup_samp_freq(st, st->soc_info.min_sample_rate); -- cgit v0.10.2 From eaa3476a7ee27c9927531781c8b25365d77e3030 Mon Sep 17 00:00:00 2001 From: Marc Titinger Date: Fri, 11 Mar 2016 15:52:30 +0100 Subject: iio: ina2xx-adc: fix scale for VShunt The scale would result in uV instead of expected mV. Mostly cosmetic, since the value of 'Power' was computed OK. Signed-off-by: Marc Titinger Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c index 4e56fe3..502f2fb 100644 --- a/drivers/iio/adc/ina2xx-adc.c +++ b/drivers/iio/adc/ina2xx-adc.c @@ -185,9 +185,9 @@ static int ina2xx_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_SCALE: switch (chan->address) { case INA2XX_SHUNT_VOLTAGE: - /* processed (mV) = raw*1000/shunt_div */ + /* processed (mV) = raw/shunt_div */ *val2 = chip->config->shunt_div; - *val = 1000; + *val = 1; return IIO_VAL_FRACTIONAL; case INA2XX_BUS_VOLTAGE: -- cgit v0.10.2 From 2c5ff1f9a6240d7d2d0928021cb76e421d6aacaf Mon Sep 17 00:00:00 2001 From: Peter Meerwald-Stadler Date: Sun, 20 Mar 2016 16:20:22 +0100 Subject: iio: Add modifier for UV light Signed-off-by: Peter Meerwald-Stadler Signed-off-by: Jonathan Cameron diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 17a9210..6fb9180 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -1255,12 +1255,14 @@ Description: What: /sys/.../iio:deviceX/in_intensityY_raw What: /sys/.../iio:deviceX/in_intensityY_ir_raw What: /sys/.../iio:deviceX/in_intensityY_both_raw +What: /sys/.../iio:deviceX/in_intensityY_uv_raw KernelVersion: 3.4 Contact: linux-iio@vger.kernel.org Description: Unit-less light intensity. Modifiers both and ir indicate that measurements contains visible and infrared light - components or just infrared light, respectively. + components or just infrared light, respectively. Modifier uv indicates + that measurements contain ultraviolet light components. What: /sys/.../iio:deviceX/in_intensity_red_integration_time What: /sys/.../iio:deviceX/in_intensity_green_integration_time diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 2e768bc..88353ae 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -101,6 +101,7 @@ static const char * const iio_modifier_names[] = { [IIO_MOD_LIGHT_RED] = "red", [IIO_MOD_LIGHT_GREEN] = "green", [IIO_MOD_LIGHT_BLUE] = "blue", + [IIO_MOD_LIGHT_UV] = "uv", [IIO_MOD_QUATERNION] = "quaternion", [IIO_MOD_TEMP_AMBIENT] = "ambient", [IIO_MOD_TEMP_OBJECT] = "object", diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h index c077617..9337ece 100644 --- a/include/uapi/linux/iio/types.h +++ b/include/uapi/linux/iio/types.h @@ -77,6 +77,7 @@ enum iio_modifier { IIO_MOD_Q, IIO_MOD_CO2, IIO_MOD_VOC, + IIO_MOD_LIGHT_UV, }; enum iio_event_type { diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c index 90980f5..8d7d979 100644 --- a/tools/iio/iio_event_monitor.c +++ b/tools/iio/iio_event_monitor.c @@ -93,6 +93,7 @@ static const char * const iio_modifier_names[] = { [IIO_MOD_LIGHT_RED] = "red", [IIO_MOD_LIGHT_GREEN] = "green", [IIO_MOD_LIGHT_BLUE] = "blue", + [IIO_MOD_LIGHT_UV] = "uv", [IIO_MOD_QUATERNION] = "quaternion", [IIO_MOD_TEMP_AMBIENT] = "ambient", [IIO_MOD_TEMP_OBJECT] = "object", @@ -172,6 +173,7 @@ static bool event_is_known(struct iio_event_data *event) case IIO_MOD_LIGHT_RED: case IIO_MOD_LIGHT_GREEN: case IIO_MOD_LIGHT_BLUE: + case IIO_MOD_LIGHT_UV: case IIO_MOD_QUATERNION: case IIO_MOD_TEMP_AMBIENT: case IIO_MOD_TEMP_OBJECT: -- cgit v0.10.2 From d409404cf6e201c2980c7148484c350f33a7912e Mon Sep 17 00:00:00 2001 From: Peter Meerwald-Stadler Date: Sun, 20 Mar 2016 16:20:23 +0100 Subject: iio: Add channel for UV index UV index indicating strength of sunburn-producing ultraviolet (UV) radiation Signed-off-by: Peter Meerwald-Stadler Signed-off-by: Jonathan Cameron diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 6fb9180..f155eff 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -1264,6 +1264,15 @@ Description: components or just infrared light, respectively. Modifier uv indicates that measurements contain ultraviolet light components. +What: /sys/.../iio:deviceX/in_uvindex_input +KernelVersion: 4.6 +Contact: linux-iio@vger.kernel.org +Description: + UV light intensity index measuring the human skin's response to + different wavelength of sunlight weighted according to the + standardised CIE Erythemal Action Spectrum. UV index values range + from 0 (low) to >=11 (extreme). + What: /sys/.../iio:deviceX/in_intensity_red_integration_time What: /sys/.../iio:deviceX/in_intensity_green_integration_time What: /sys/.../iio:deviceX/in_intensity_blue_integration_time diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 88353ae..190a593 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -79,6 +79,7 @@ static const char * const iio_chan_type_name_spec[] = { [IIO_CONCENTRATION] = "concentration", [IIO_RESISTANCE] = "resistance", [IIO_PH] = "ph", + [IIO_UVINDEX] = "uvindex", }; static const char * const iio_modifier_names[] = { diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h index 9337ece..b0916fc 100644 --- a/include/uapi/linux/iio/types.h +++ b/include/uapi/linux/iio/types.h @@ -38,6 +38,7 @@ enum iio_chan_type { IIO_CONCENTRATION, IIO_RESISTANCE, IIO_PH, + IIO_UVINDEX, }; enum iio_modifier { diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c index 8d7d979..d9b7e0f 100644 --- a/tools/iio/iio_event_monitor.c +++ b/tools/iio/iio_event_monitor.c @@ -56,6 +56,7 @@ static const char * const iio_chan_type_name_spec[] = { [IIO_CONCENTRATION] = "concentration", [IIO_RESISTANCE] = "resistance", [IIO_PH] = "ph", + [IIO_UVINDEX] = "uvindex", }; static const char * const iio_ev_type_text[] = { @@ -147,6 +148,7 @@ static bool event_is_known(struct iio_event_data *event) case IIO_CONCENTRATION: case IIO_RESISTANCE: case IIO_PH: + case IIO_UVINDEX: break; default: return false; -- cgit v0.10.2 From fa4c9c93e93f429bb8a8b01c53d54d6bd53a3028 Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Tue, 29 Mar 2016 19:14:27 +0300 Subject: hp206c: Initial support for reading sensor values Signed-off-by: Crestez Dan Leonard Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig index 31c0e1f..8de0192 100644 --- a/drivers/iio/pressure/Kconfig +++ b/drivers/iio/pressure/Kconfig @@ -148,4 +148,14 @@ config T5403 To compile this driver as a module, choose M here: the module will be called t5403. +config HP206C + tristate "HOPERF HP206C precision barometer and altimeter sensor" + depends on I2C + help + Say yes here to build support for the HOPREF HP206C precision + barometer and altimeter sensor. + + This driver can also be built as a module. If so, the module will + be called hp206c. + endmenu diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile index d336af1..6e60863 100644 --- a/drivers/iio/pressure/Makefile +++ b/drivers/iio/pressure/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_IIO_ST_PRESS) += st_pressure.o st_pressure-y := st_pressure_core.o st_pressure-$(CONFIG_IIO_BUFFER) += st_pressure_buffer.o obj-$(CONFIG_T5403) += t5403.o +obj-$(CONFIG_HP206C) += hp206c.o obj-$(CONFIG_IIO_ST_PRESS_I2C) += st_pressure_i2c.o obj-$(CONFIG_IIO_ST_PRESS_SPI) += st_pressure_spi.o diff --git a/drivers/iio/pressure/hp206c.c b/drivers/iio/pressure/hp206c.c new file mode 100644 index 0000000..90f2b6e --- /dev/null +++ b/drivers/iio/pressure/hp206c.c @@ -0,0 +1,426 @@ +/* + * hp206c.c - HOPERF HP206C precision barometer and altimeter sensor + * + * Copyright (c) 2016, Intel Corporation. + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * (7-bit I2C slave address 0x76) + * + * Datasheet: + * http://www.hoperf.com/upload/sensor/HP206C_DataSheet_EN_V2.0.pdf + */ + +#include +#include +#include +#include +#include +#include +#include + +/* I2C commands: */ +#define HP206C_CMD_SOFT_RST 0x06 + +#define HP206C_CMD_ADC_CVT 0x40 + +#define HP206C_CMD_ADC_CVT_OSR_4096 0x00 +#define HP206C_CMD_ADC_CVT_OSR_2048 0x04 +#define HP206C_CMD_ADC_CVT_OSR_1024 0x08 +#define HP206C_CMD_ADC_CVT_OSR_512 0x0c +#define HP206C_CMD_ADC_CVT_OSR_256 0x10 +#define HP206C_CMD_ADC_CVT_OSR_128 0x14 + +#define HP206C_CMD_ADC_CVT_CHNL_PT 0x00 +#define HP206C_CMD_ADC_CVT_CHNL_T 0x02 + +#define HP206C_CMD_READ_P 0x30 +#define HP206C_CMD_READ_T 0x32 + +#define HP206C_CMD_READ_REG 0x80 +#define HP206C_CMD_WRITE_REG 0xc0 + +#define HP206C_REG_INT_EN 0x0b +#define HP206C_REG_INT_CFG 0x0c + +#define HP206C_REG_INT_SRC 0x0d +#define HP206C_FLAG_DEV_RDY 0x40 + +#define HP206C_REG_PARA 0x0f +#define HP206C_FLAG_CMPS_EN 0x80 + +/* Maximum spin for DEV_RDY */ +#define HP206C_MAX_DEV_RDY_WAIT_COUNT 20 +#define HP206C_DEV_RDY_WAIT_US 20000 + +struct hp206c_data { + struct mutex mutex; + struct i2c_client *client; + int temp_osr_index; + int pres_osr_index; +}; + +struct hp206c_osr_setting { + u8 osr_mask; + unsigned int temp_conv_time_us; + unsigned int pres_conv_time_us; +}; + +/* Data from Table 5 in datasheet. */ +static const struct hp206c_osr_setting hp206c_osr_settings[] = { + { HP206C_CMD_ADC_CVT_OSR_4096, 65600, 131100 }, + { HP206C_CMD_ADC_CVT_OSR_2048, 32800, 65600 }, + { HP206C_CMD_ADC_CVT_OSR_1024, 16400, 32800 }, + { HP206C_CMD_ADC_CVT_OSR_512, 8200, 16400 }, + { HP206C_CMD_ADC_CVT_OSR_256, 4100, 8200 }, + { HP206C_CMD_ADC_CVT_OSR_128, 2100, 4100 }, +}; +static const int hp206c_osr_rates[] = { 4096, 2048, 1024, 512, 256, 128 }; +static const char hp206c_osr_rates_str[] = "4096 2048 1024 512 256 128"; + +static inline int hp206c_read_reg(struct i2c_client *client, u8 reg) +{ + return i2c_smbus_read_byte_data(client, HP206C_CMD_READ_REG | reg); +} + +static inline int hp206c_write_reg(struct i2c_client *client, u8 reg, u8 val) +{ + return i2c_smbus_write_byte_data(client, + HP206C_CMD_WRITE_REG | reg, val); +} + +static int hp206c_read_20bit(struct i2c_client *client, u8 cmd) +{ + int ret; + u8 values[3]; + + ret = i2c_smbus_read_i2c_block_data(client, cmd, 3, values); + if (ret < 0) + return ret; + if (ret != 3) + return -EIO; + return ((values[0] & 0xF) << 16) | (values[1] << 8) | (values[2]); +} + +/* Spin for max 160ms until DEV_RDY is 1, or return error. */ +static int hp206c_wait_dev_rdy(struct iio_dev *indio_dev) +{ + int ret; + int count = 0; + struct hp206c_data *data = iio_priv(indio_dev); + struct i2c_client *client = data->client; + + while (++count <= HP206C_MAX_DEV_RDY_WAIT_COUNT) { + ret = hp206c_read_reg(client, HP206C_REG_INT_SRC); + if (ret < 0) { + dev_err(&indio_dev->dev, "Failed READ_REG INT_SRC: %d\n", ret); + return ret; + } + if (ret & HP206C_FLAG_DEV_RDY) + return 0; + usleep_range(HP206C_DEV_RDY_WAIT_US, HP206C_DEV_RDY_WAIT_US * 3 / 2); + } + return -ETIMEDOUT; +} + +static int hp206c_set_compensation(struct i2c_client *client, bool enabled) +{ + int val; + + val = hp206c_read_reg(client, HP206C_REG_PARA); + if (val < 0) + return val; + if (enabled) + val |= HP206C_FLAG_CMPS_EN; + else + val &= ~HP206C_FLAG_CMPS_EN; + + return hp206c_write_reg(client, HP206C_REG_PARA, val); +} + +/* Do a soft reset */ +static int hp206c_soft_reset(struct iio_dev *indio_dev) +{ + int ret; + struct hp206c_data *data = iio_priv(indio_dev); + struct i2c_client *client = data->client; + + ret = i2c_smbus_write_byte(client, HP206C_CMD_SOFT_RST); + if (ret) { + dev_err(&client->dev, "Failed to reset device: %d\n", ret); + return ret; + } + + usleep_range(400, 600); + + ret = hp206c_wait_dev_rdy(indio_dev); + if (ret) { + dev_err(&client->dev, "Device not ready after soft reset: %d\n", ret); + return ret; + } + + ret = hp206c_set_compensation(client, true); + if (ret) + dev_err(&client->dev, "Failed to enable compensation: %d\n", ret); + return ret; +} + +static int hp206c_conv_and_read(struct iio_dev *indio_dev, + u8 conv_cmd, u8 read_cmd, + unsigned int sleep_us) +{ + int ret; + struct hp206c_data *data = iio_priv(indio_dev); + struct i2c_client *client = data->client; + + ret = hp206c_wait_dev_rdy(indio_dev); + if (ret < 0) { + dev_err(&indio_dev->dev, "Device not ready: %d\n", ret); + return ret; + } + + ret = i2c_smbus_write_byte(client, conv_cmd); + if (ret < 0) { + dev_err(&indio_dev->dev, "Failed convert: %d\n", ret); + return ret; + } + + usleep_range(sleep_us, sleep_us * 3 / 2); + + ret = hp206c_wait_dev_rdy(indio_dev); + if (ret < 0) { + dev_err(&indio_dev->dev, "Device not ready: %d\n", ret); + return ret; + } + + ret = hp206c_read_20bit(client, read_cmd); + if (ret < 0) + dev_err(&indio_dev->dev, "Failed read: %d\n", ret); + + return ret; +} + +static int hp206c_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, int *val, + int *val2, long mask) +{ + int ret; + struct hp206c_data *data = iio_priv(indio_dev); + const struct hp206c_osr_setting *osr_setting; + u8 conv_cmd; + + mutex_lock(&data->mutex); + + switch (mask) { + case IIO_CHAN_INFO_OVERSAMPLING_RATIO: + switch (chan->type) { + case IIO_TEMP: + *val = hp206c_osr_rates[data->temp_osr_index]; + ret = IIO_VAL_INT; + break; + + case IIO_PRESSURE: + *val = hp206c_osr_rates[data->pres_osr_index]; + ret = IIO_VAL_INT; + break; + default: + ret = -EINVAL; + } + break; + + case IIO_CHAN_INFO_RAW: + switch (chan->type) { + case IIO_TEMP: + osr_setting = &hp206c_osr_settings[data->temp_osr_index]; + conv_cmd = HP206C_CMD_ADC_CVT | + osr_setting->osr_mask | + HP206C_CMD_ADC_CVT_CHNL_T; + ret = hp206c_conv_and_read(indio_dev, + conv_cmd, + HP206C_CMD_READ_T, + osr_setting->temp_conv_time_us); + if (ret >= 0) { + /* 20 significant bits are provided. + * Extend sign over the rest. + */ + *val = sign_extend32(ret, 19); + ret = IIO_VAL_INT; + } + break; + + case IIO_PRESSURE: + osr_setting = &hp206c_osr_settings[data->pres_osr_index]; + conv_cmd = HP206C_CMD_ADC_CVT | + osr_setting->osr_mask | + HP206C_CMD_ADC_CVT_CHNL_PT; + ret = hp206c_conv_and_read(indio_dev, + conv_cmd, + HP206C_CMD_READ_P, + osr_setting->pres_conv_time_us); + if (ret >= 0) { + *val = ret; + ret = IIO_VAL_INT; + } + break; + default: + ret = -EINVAL; + } + break; + + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_TEMP: + *val = 0; + *val2 = 10000; + ret = IIO_VAL_INT_PLUS_MICRO; + break; + + case IIO_PRESSURE: + *val = 0; + *val2 = 1000; + ret = IIO_VAL_INT_PLUS_MICRO; + break; + default: + ret = -EINVAL; + } + break; + + default: + ret = -EINVAL; + } + + mutex_unlock(&data->mutex); + return ret; +} + +static int hp206c_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + int ret = 0; + struct hp206c_data *data = iio_priv(indio_dev); + + if (mask != IIO_CHAN_INFO_OVERSAMPLING_RATIO) + return -EINVAL; + mutex_lock(&data->mutex); + switch (chan->type) { + case IIO_TEMP: + data->temp_osr_index = find_closest_descending(val, + hp206c_osr_rates, ARRAY_SIZE(hp206c_osr_rates)); + break; + case IIO_PRESSURE: + data->pres_osr_index = find_closest_descending(val, + hp206c_osr_rates, ARRAY_SIZE(hp206c_osr_rates)); + break; + default: + ret = -EINVAL; + } + mutex_unlock(&data->mutex); + return ret; +} + +static const struct iio_chan_spec hp206c_channels[] = { + { + .type = IIO_TEMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), + }, + { + .type = IIO_PRESSURE, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), + } +}; + +static IIO_CONST_ATTR_SAMP_FREQ_AVAIL(hp206c_osr_rates_str); + +static struct attribute *hp206c_attributes[] = { + &iio_const_attr_sampling_frequency_available.dev_attr.attr, + NULL, +}; + +static const struct attribute_group hp206c_attribute_group = { + .attrs = hp206c_attributes, +}; + +static const struct iio_info hp206c_info = { + .attrs = &hp206c_attribute_group, + .read_raw = hp206c_read_raw, + .write_raw = hp206c_write_raw, + .driver_module = THIS_MODULE, +}; + +static int hp206c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct iio_dev *indio_dev; + struct hp206c_data *data; + int ret; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE | + I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_READ_I2C_BLOCK)) { + dev_err(&client->dev, "Adapter does not support " + "all required i2c functionality\n"); + return -ENODEV; + } + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + data->client = client; + mutex_init(&data->mutex); + + indio_dev->info = &hp206c_info; + indio_dev->name = id->name; + indio_dev->dev.parent = &client->dev; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->channels = hp206c_channels; + indio_dev->num_channels = ARRAY_SIZE(hp206c_channels); + + i2c_set_clientdata(client, indio_dev); + + /* Do a soft reset on probe */ + ret = hp206c_soft_reset(indio_dev); + if (ret) { + dev_err(&client->dev, "Failed to reset on startup: %d\n", ret); + return -ENODEV; + } + + return devm_iio_device_register(&client->dev, indio_dev); +} + +static const struct i2c_device_id hp206c_id[] = { + {"hp206c"}, + {} +}; + +#ifdef CONFIG_ACPI +static const struct acpi_device_id hp206c_acpi_match[] = { + {"HOP206C", 0}, + { }, +}; +MODULE_DEVICE_TABLE(acpi, hp206c_acpi_match); +#endif + +static struct i2c_driver hp206c_driver = { + .probe = hp206c_probe, + .id_table = hp206c_id, + .driver = { + .name = "hp206c", + .acpi_match_table = ACPI_PTR(hp206c_acpi_match), + }, +}; + +module_i2c_driver(hp206c_driver); + +MODULE_DESCRIPTION("HOPERF HP206C precision barometer and altimeter sensor"); +MODULE_AUTHOR("Leonard Crestez "); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From 486294f184c05cff116160bb731cbb679f047621 Mon Sep 17 00:00:00 2001 From: Irina Tirdea Date: Tue, 29 Mar 2016 15:21:21 +0300 Subject: iio: accel: bmc150: use common definition for regmap conf bmc150_i2c_regmap_conf is defined three times (in bmc150-accel-core.c, bmc150-accel-i2c.c and and bmc150-accel-spi.c), although the definition is the same. Use one common definition for bmc150_i2c_regmap_conf in all included files. Signed-off-by: Irina Tirdea Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c index f3d096f..e631ee9 100644 --- a/drivers/iio/accel/bmc150-accel-core.c +++ b/drivers/iio/accel/bmc150-accel-core.c @@ -246,11 +246,12 @@ static const struct { {500000, BMC150_ACCEL_SLEEP_500_MS}, {1000000, BMC150_ACCEL_SLEEP_1_SEC} }; -static const struct regmap_config bmc150_i2c_regmap_conf = { +const struct regmap_config bmc150_regmap_conf = { .reg_bits = 8, .val_bits = 8, .max_register = 0x3f, }; +EXPORT_SYMBOL_GPL(bmc150_regmap_conf); static int bmc150_accel_set_mode(struct bmc150_accel_data *data, enum bmc150_power_modes mode, diff --git a/drivers/iio/accel/bmc150-accel-i2c.c b/drivers/iio/accel/bmc150-accel-i2c.c index b41404b..8ca8041 100644 --- a/drivers/iio/accel/bmc150-accel-i2c.c +++ b/drivers/iio/accel/bmc150-accel-i2c.c @@ -28,11 +28,6 @@ #include "bmc150-accel.h" -static const struct regmap_config bmc150_i2c_regmap_conf = { - .reg_bits = 8, - .val_bits = 8, -}; - static int bmc150_accel_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -43,7 +38,7 @@ static int bmc150_accel_probe(struct i2c_client *client, i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_I2C_BLOCK); - regmap = devm_regmap_init_i2c(client, &bmc150_i2c_regmap_conf); + regmap = devm_regmap_init_i2c(client, &bmc150_regmap_conf); if (IS_ERR(regmap)) { dev_err(&client->dev, "Failed to initialize i2c regmap\n"); return PTR_ERR(regmap); diff --git a/drivers/iio/accel/bmc150-accel-spi.c b/drivers/iio/accel/bmc150-accel-spi.c index 16b66f2..006794a7 100644 --- a/drivers/iio/accel/bmc150-accel-spi.c +++ b/drivers/iio/accel/bmc150-accel-spi.c @@ -25,18 +25,12 @@ #include "bmc150-accel.h" -static const struct regmap_config bmc150_spi_regmap_conf = { - .reg_bits = 8, - .val_bits = 8, - .max_register = 0x3f, -}; - static int bmc150_accel_probe(struct spi_device *spi) { struct regmap *regmap; const struct spi_device_id *id = spi_get_device_id(spi); - regmap = devm_regmap_init_spi(spi, &bmc150_spi_regmap_conf); + regmap = devm_regmap_init_spi(spi, &bmc150_regmap_conf); if (IS_ERR(regmap)) { dev_err(&spi->dev, "Failed to initialize spi regmap\n"); return PTR_ERR(regmap); diff --git a/drivers/iio/accel/bmc150-accel.h b/drivers/iio/accel/bmc150-accel.h index ba03359..38a8b11 100644 --- a/drivers/iio/accel/bmc150-accel.h +++ b/drivers/iio/accel/bmc150-accel.h @@ -16,5 +16,6 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq, const char *name, bool block_supported); int bmc150_accel_core_remove(struct device *dev); extern const struct dev_pm_ops bmc150_accel_pm_ops; +extern const struct regmap_config bmc150_regmap_conf; #endif /* _BMC150_ACCEL_H_ */ -- cgit v0.10.2 From 77ed2c5745d93416992857d124f35834b62b3e70 Mon Sep 17 00:00:00 2001 From: Tetsuo Handa Date: Tue, 8 Mar 2016 20:01:32 +0900 Subject: android,lowmemorykiller: Don't abuse TIF_MEMDIE. Currently, lowmemorykiller (LMK) is using TIF_MEMDIE for two purposes. One is to remember processes killed by LMK, and the other is to accelerate termination of processes killed by LMK. But since LMK is invoked as a memory shrinker function, there still should be some memory available. It is very likely that memory allocations by processes killed by LMK will succeed without using ALLOC_NO_WATERMARKS via TIF_MEMDIE. Even if their allocations cannot escape from memory allocation loop unless they use ALLOC_NO_WATERMARKS, lowmem_deathpending_timeout can guarantee forward progress by choosing next victim process. On the other hand, mark_oom_victim() assumes that it must be called with oom_lock held and it must not be called after oom_killer_disable() was called. But LMK is calling it without holding oom_lock and checking oom_killer_disabled. It is possible that LMK calls mark_oom_victim() due to allocation requests by kernel threads after current thread returned from oom_killer_disabled(). This will break synchronization for PM/suspend. This patch introduces per a task_struct flag for remembering processes killed by LMK, and replaces TIF_MEMDIE with that flag. By applying this patch, assumption by mark_oom_victim() becomes true. Signed-off-by: Tetsuo Handa Acked-by: Michal Hocko Cc: Arve Hjonnevag Cc: Riley Andrews Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c index 2509e5d..c79f224 100644 --- a/drivers/staging/android/lowmemorykiller.c +++ b/drivers/staging/android/lowmemorykiller.c @@ -131,7 +131,7 @@ static unsigned long lowmem_scan(struct shrinker *s, struct shrink_control *sc) if (!p) continue; - if (test_tsk_thread_flag(p, TIF_MEMDIE) && + if (task_lmk_waiting(p) && p->mm && time_before_eq(jiffies, lowmem_deathpending_timeout)) { task_unlock(p); rcu_read_unlock(); @@ -162,13 +162,8 @@ static unsigned long lowmem_scan(struct shrinker *s, struct shrink_control *sc) if (selected) { task_lock(selected); send_sig(SIGKILL, selected, 0); - /* - * FIXME: lowmemorykiller shouldn't abuse global OOM killer - * infrastructure. There is no real reason why the selected - * task should have access to the memory reserves. - */ if (selected->mm) - mark_oom_victim(selected); + task_set_lmk_waiting(selected); task_unlock(selected); lowmem_print(1, "Killing '%s' (%d), adj %hd,\n" " to free %ldkB on behalf of '%s' (%d) because\n" diff --git a/include/linux/sched.h b/include/linux/sched.h index 60bba7e..9dff190 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2184,6 +2184,7 @@ static inline void memalloc_noio_restore(unsigned int flags) #define PFA_NO_NEW_PRIVS 0 /* May not gain new privileges. */ #define PFA_SPREAD_PAGE 1 /* Spread page cache over cpuset */ #define PFA_SPREAD_SLAB 2 /* Spread some slab caches over cpuset */ +#define PFA_LMK_WAITING 3 /* Lowmemorykiller is waiting */ #define TASK_PFA_TEST(name, func) \ @@ -2207,6 +2208,9 @@ TASK_PFA_TEST(SPREAD_SLAB, spread_slab) TASK_PFA_SET(SPREAD_SLAB, spread_slab) TASK_PFA_CLEAR(SPREAD_SLAB, spread_slab) +TASK_PFA_TEST(LMK_WAITING, lmk_waiting) +TASK_PFA_SET(LMK_WAITING, lmk_waiting) + /* * task->jobctl flags */ -- cgit v0.10.2 From 8670a56ff70ec1fcbb95bd05a478c5a8361fee53 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Fri, 1 Apr 2016 17:28:22 +0900 Subject: staging: dgnc: remove too many traverse pointer The "ch->ch_bd" is already assined to "bd" but this is only for checking null or MAGIC number. in the dgnc_tty_ioctl function, bd can be used for referencing to board_ops structure. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index d617fca..5d8da41 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -2518,6 +2518,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct dgnc_board *bd; + struct board_ops *ch_bd_ops; struct channel_t *ch; struct un_t *un; int rc; @@ -2539,6 +2540,8 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, if (!bd || bd->magic != DGNC_BOARD_MAGIC) return -ENODEV; + ch_bd_ops = bd->bd_ops; + spin_lock_irqsave(&ch->ch_lock, flags); if (un->un_open_count <= 0) { @@ -2563,7 +2566,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, if (rc) return rc; - rc = ch->ch_bd->bd_ops->drain(tty, 0); + rc = ch_bd_ops->drain(tty, 0); if (rc) return -EINTR; @@ -2571,7 +2574,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, spin_lock_irqsave(&ch->ch_lock, flags); if (((cmd == TCSBRK) && (!arg)) || (cmd == TCSBRKP)) - ch->ch_bd->bd_ops->send_break(ch, 250); + ch_bd_ops->send_break(ch, 250); spin_unlock_irqrestore(&ch->ch_lock, flags); @@ -2588,13 +2591,13 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, if (rc) return rc; - rc = ch->ch_bd->bd_ops->drain(tty, 0); + rc = ch_bd_ops->drain(tty, 0); if (rc) return -EINTR; spin_lock_irqsave(&ch->ch_lock, flags); - ch->ch_bd->bd_ops->send_break(ch, 250); + ch_bd_ops->send_break(ch, 250); spin_unlock_irqrestore(&ch->ch_lock, flags); @@ -2606,13 +2609,13 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, if (rc) return rc; - rc = ch->ch_bd->bd_ops->drain(tty, 0); + rc = ch_bd_ops->drain(tty, 0); if (rc) return -EINTR; spin_lock_irqsave(&ch->ch_lock, flags); - ch->ch_bd->bd_ops->send_break(ch, 250); + ch_bd_ops->send_break(ch, 250); spin_unlock_irqrestore(&ch->ch_lock, flags); @@ -2641,7 +2644,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, spin_lock_irqsave(&ch->ch_lock, flags); tty->termios.c_cflag = ((tty->termios.c_cflag & ~CLOCAL) | (arg ? CLOCAL : 0)); - ch->ch_bd->bd_ops->param(tty); + ch_bd_ops->param(tty); spin_unlock_irqrestore(&ch->ch_lock, flags); return 0; @@ -2678,7 +2681,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, if ((arg == TCIFLUSH) || (arg == TCIOFLUSH)) { ch->ch_r_head = ch->ch_r_tail; - ch->ch_bd->bd_ops->flush_uart_read(ch); + ch_bd_ops->flush_uart_read(ch); /* Force queue flow control to be released, if needed */ dgnc_check_queue_flow_control(ch); } @@ -2686,7 +2689,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, if ((arg == TCOFLUSH) || (arg == TCIOFLUSH)) { if (!(un->un_type == DGNC_PRINT)) { ch->ch_w_head = ch->ch_w_tail; - ch->ch_bd->bd_ops->flush_uart_write(ch); + ch_bd_ops->flush_uart_write(ch); if (ch->ch_tun.un_flags & (UN_LOW|UN_EMPTY)) { ch->ch_tun.un_flags &= @@ -2720,14 +2723,14 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, /* flush rx */ ch->ch_flags &= ~CH_STOP; ch->ch_r_head = ch->ch_r_tail; - ch->ch_bd->bd_ops->flush_uart_read(ch); + ch_bd_ops->flush_uart_read(ch); /* Force queue flow control to be released, if needed */ dgnc_check_queue_flow_control(ch); } /* now wait for all the output to drain */ spin_unlock_irqrestore(&ch->ch_lock, flags); - rc = ch->ch_bd->bd_ops->drain(tty, 0); + rc = ch_bd_ops->drain(tty, 0); if (rc) return -EINTR; @@ -2737,7 +2740,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, case TCSETAW: spin_unlock_irqrestore(&ch->ch_lock, flags); - rc = ch->ch_bd->bd_ops->drain(tty, 0); + rc = ch_bd_ops->drain(tty, 0); if (rc) return -EINTR; @@ -2760,7 +2763,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, /* set information for ditty */ if (cmd == (DIGI_SETAW)) { spin_unlock_irqrestore(&ch->ch_lock, flags); - rc = ch->ch_bd->bd_ops->drain(tty, 0); + rc = ch_bd_ops->drain(tty, 0); if (rc) return -EINTR; @@ -2793,7 +2796,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, else ch->ch_flags &= ~(CH_LOOPBACK); - ch->ch_bd->bd_ops->param(tty); + ch_bd_ops->param(tty); spin_unlock_irqrestore(&ch->ch_lock, flags); return 0; } @@ -2813,7 +2816,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, return rc; spin_lock_irqsave(&ch->ch_lock, flags); dgnc_set_custom_speed(ch, new_rate); - ch->ch_bd->bd_ops->param(tty); + ch_bd_ops->param(tty); spin_unlock_irqrestore(&ch->ch_lock, flags); return 0; } @@ -2834,7 +2837,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, if (rc) return rc; spin_lock_irqsave(&ch->ch_lock, flags); - ch->ch_bd->bd_ops->send_immediate_char(ch, c); + ch_bd_ops->send_immediate_char(ch, c); spin_unlock_irqrestore(&ch->ch_lock, flags); return 0; } @@ -2922,7 +2925,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, /* * Is the UART empty? Add that value to whats in our TX queue. */ - count = buf.txbuf + ch->ch_bd->bd_ops->get_uart_bytes_left(ch); + count = buf.txbuf + ch_bd_ops->get_uart_bytes_left(ch); /* * Figure out how much data the RealPort Server believes should -- cgit v0.10.2 From b9f8463728eb0dd46b9f2b34ee59b12e358b4ce7 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Fri, 1 Apr 2016 17:28:44 +0900 Subject: staging: dgnc: fix CamelCase in dgnc_tty.c fix checkpatch.pl warning about 'Avoid CamelCase' Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 5d8da41..074988d 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -2931,7 +2931,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, * Figure out how much data the RealPort Server believes should * be in our TX queue. */ - tdist = (buf.tIn - buf.tOut) & 0xffff; + tdist = (buf.tx_in - buf.tx_out) & 0xffff; /* * If we have more data than the RealPort Server believes we diff --git a/drivers/staging/dgnc/digi.h b/drivers/staging/dgnc/digi.h index 523a2d3..5b983e6 100644 --- a/drivers/staging/dgnc/digi.h +++ b/drivers/staging/dgnc/digi.h @@ -109,8 +109,8 @@ struct digi_info { struct digi_getbuffer /* Struct for holding buffer use counts */ { - unsigned long tIn; - unsigned long tOut; + unsigned long tx_in; + unsigned long tx_out; unsigned long rxbuf; unsigned long txbuf; unsigned long txdone; -- cgit v0.10.2 From 148e45dc87cb76ba89e80da264bc692cc91a5149 Mon Sep 17 00:00:00 2001 From: Clifton Barnes Date: Thu, 31 Mar 2016 18:53:14 -0400 Subject: staging: vme: fix bare use of 'unsigned' fix checkpatch.pl warning about 'Prefer 'unsigned int' to bare use of 'unsigned'' Signed-off-by: Clifton Barnes Acked-by: Martyn Welch Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vme/devices/vme_pio2_gpio.c b/drivers/staging/vme/devices/vme_pio2_gpio.c index df992c3..f52a9ed 100644 --- a/drivers/staging/vme/devices/vme_pio2_gpio.c +++ b/drivers/staging/vme/devices/vme_pio2_gpio.c @@ -97,7 +97,7 @@ static void pio2_gpio_set(struct gpio_chip *chip, } /* Directionality configured at board build - send appropriate response */ -static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset) +static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned int offset) { int data; struct pio2_card *card = gpio_to_pio2_card(chip); @@ -116,7 +116,8 @@ static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset) } /* Directionality configured at board build - send appropriate response */ -static int pio2_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int value) +static int pio2_gpio_dir_out(struct gpio_chip *chip, + unsigned int offset, int value) { int data; struct pio2_card *card = gpio_to_pio2_card(chip); -- cgit v0.10.2 From fbbc5e7044f761652e1e83037bd90574976337a3 Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Sun, 10 Apr 2016 13:23:09 +0200 Subject: iio: potentiometer: add driver for Maxim Integrated DS1803 The following functions are supported: - write, read potentiometer value - potentiometer scale Datasheet: https://datasheets.maximintegrated.com/en/ds/DS1803.pdf Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/potentiometer/ds1803.txt b/Documentation/devicetree/bindings/iio/potentiometer/ds1803.txt new file mode 100644 index 0000000..df77bf5 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/potentiometer/ds1803.txt @@ -0,0 +1,21 @@ +* Maxim Integrated DS1803 digital potentiometer driver + +The node for this driver must be a child node of a I2C controller, hence +all mandatory properties for your controller must be specified. See directory: + + Documentation/devicetree/bindings/i2c + +for more details. + +Required properties: + - compatible: Must be one of the following, depending on the + model: + "maxim,ds1803-010", + "maxim,ds1803-050", + "maxim,ds1803-100" + +Example: +ds1803: ds1803@1 { + reg = <0x28>; + compatible = "maxim,ds1803-010"; +}; diff --git a/drivers/iio/potentiometer/Kconfig b/drivers/iio/potentiometer/Kconfig index 7ea069b..6acb238 100644 --- a/drivers/iio/potentiometer/Kconfig +++ b/drivers/iio/potentiometer/Kconfig @@ -5,6 +5,16 @@ menu "Digital potentiometers" +config DS1803 + tristate "Maxim Integrated DS1803 Digital Potentiometer driver" + depends on I2C + help + Say yes here to build support for the Maxim Integrated DS1803 + digital potentiomenter chip. + + To compile this driver as a module, choose M here: the + module will be called ds1803. + config MCP4131 tristate "Microchip MCP413X/414X/415X/416X/423X/424X/425X/426X Digital Potentiometer driver" depends on SPI diff --git a/drivers/iio/potentiometer/Makefile b/drivers/iio/potentiometer/Makefile index 91a80f8..6007faa 100644 --- a/drivers/iio/potentiometer/Makefile +++ b/drivers/iio/potentiometer/Makefile @@ -3,6 +3,7 @@ # # When adding new entries keep the list in alphabetical order +obj-$(CONFIG_DS1803) += ds1803.o obj-$(CONFIG_MCP4131) += mcp4131.o obj-$(CONFIG_MCP4531) += mcp4531.o obj-$(CONFIG_TPL0102) += tpl0102.o diff --git a/drivers/iio/potentiometer/ds1803.c b/drivers/iio/potentiometer/ds1803.c new file mode 100644 index 0000000..fb9e2a3 --- /dev/null +++ b/drivers/iio/potentiometer/ds1803.c @@ -0,0 +1,173 @@ +/* + * Maxim Integrated DS1803 digital potentiometer driver + * Copyright (c) 2016 Slawomir Stepien + * + * Datasheet: https://datasheets.maximintegrated.com/en/ds/DS1803.pdf + * + * DEVID #Wipers #Positions Resistor Opts (kOhm) i2c address + * ds1803 2 256 10, 50, 100 0101xxx + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include + +#define DS1803_MAX_POS 255 +#define DS1803_WRITE(chan) (0xa8 | ((chan) + 1)) + +enum ds1803_type { + DS1803_010, + DS1803_050, + DS1803_100, +}; + +struct ds1803_cfg { + int kohms; +}; + +static const struct ds1803_cfg ds1803_cfg[] = { + [DS1803_010] = { .kohms = 10, }, + [DS1803_050] = { .kohms = 50, }, + [DS1803_100] = { .kohms = 100, }, +}; + +struct ds1803_data { + struct i2c_client *client; + const struct ds1803_cfg *cfg; +}; + +#define DS1803_CHANNEL(ch) { \ + .type = IIO_RESISTANCE, \ + .indexed = 1, \ + .output = 1, \ + .channel = (ch), \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ +} + +static const struct iio_chan_spec ds1803_channels[] = { + DS1803_CHANNEL(0), + DS1803_CHANNEL(1), +}; + +static int ds1803_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct ds1803_data *data = iio_priv(indio_dev); + int pot = chan->channel; + int ret; + u8 result[indio_dev->num_channels]; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = i2c_master_recv(data->client, result, + indio_dev->num_channels); + if (ret < 0) + return ret; + + *val = result[pot]; + return IIO_VAL_INT; + + case IIO_CHAN_INFO_SCALE: + *val = 1000 * data->cfg->kohms; + *val2 = DS1803_MAX_POS; + return IIO_VAL_FRACTIONAL; + } + + return -EINVAL; +} + +static int ds1803_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct ds1803_data *data = iio_priv(indio_dev); + int pot = chan->channel; + + if (val2 != 0) + return -EINVAL; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + if (val > DS1803_MAX_POS || val < 0) + return -EINVAL; + break; + default: + return -EINVAL; + } + + return i2c_smbus_write_byte_data(data->client, DS1803_WRITE(pot), val); +} + +static const struct iio_info ds1803_info = { + .read_raw = ds1803_read_raw, + .write_raw = ds1803_write_raw, + .driver_module = THIS_MODULE, +}; + +static int ds1803_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct ds1803_data *data; + struct iio_dev *indio_dev; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + i2c_set_clientdata(client, indio_dev); + + data = iio_priv(indio_dev); + data->client = client; + data->cfg = &ds1803_cfg[id->driver_data]; + + indio_dev->dev.parent = dev; + indio_dev->info = &ds1803_info; + indio_dev->channels = ds1803_channels; + indio_dev->num_channels = ARRAY_SIZE(ds1803_channels); + indio_dev->name = client->name; + + return devm_iio_device_register(dev, indio_dev); +} + +#if defined(CONFIG_OF) +static const struct of_device_id ds1803_dt_ids[] = { + { .compatible = "maxim,ds1803-010", .data = &ds1803_cfg[DS1803_010] }, + { .compatible = "maxim,ds1803-050", .data = &ds1803_cfg[DS1803_050] }, + { .compatible = "maxim,ds1803-100", .data = &ds1803_cfg[DS1803_100] }, + {} +}; +MODULE_DEVICE_TABLE(of, ds1803_dt_ids); +#endif /* CONFIG_OF */ + +static const struct i2c_device_id ds1803_id[] = { + { "ds1803-010", DS1803_010 }, + { "ds1803-050", DS1803_050 }, + { "ds1803-100", DS1803_100 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, ds1803_id); + +static struct i2c_driver ds1803_driver = { + .driver = { + .name = "ds1803", + .of_match_table = of_match_ptr(ds1803_dt_ids), + }, + .probe = ds1803_probe, + .id_table = ds1803_id, +}; + +module_i2c_driver(ds1803_driver); + +MODULE_AUTHOR("Slawomir Stepien "); +MODULE_DESCRIPTION("DS1803 digital potentiometer"); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From bc11ca4a0b84a2f2ebaca2614b92998738d13b1e Mon Sep 17 00:00:00 2001 From: Gregor Boirie Date: Fri, 8 Apr 2016 17:09:08 +0200 Subject: iio:magnetometer:ak8975: triggered buffer support This will be used together with an external trigger (e.g hrtimer based software trigger). Signed-off-by: Gregor Boirie Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig index 021dc53..d9834ed 100644 --- a/drivers/iio/magnetometer/Kconfig +++ b/drivers/iio/magnetometer/Kconfig @@ -9,6 +9,8 @@ config AK8975 tristate "Asahi Kasei AK 3-Axis Magnetometer" depends on I2C depends on GPIOLIB || COMPILE_TEST + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help Say yes here to build support for Asahi Kasei AK8975, AK8963, AK09911 or AK09912 3-Axis Magnetometer. diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 48d127a..1e68981 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -36,6 +36,12 @@ #include #include +#include +#include +#include +#include +#include + /* * Register definitions, as well as various shifts and masks to get at the * individual fields of the registers. @@ -633,22 +639,15 @@ static int wait_conversion_complete_interrupt(struct ak8975_data *data) return ret > 0 ? 0 : -ETIME; } -/* - * Emits the raw flux value for the x, y, or z axis. - */ -static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val) +static int ak8975_start_read_axis(struct ak8975_data *data, + const struct i2c_client *client) { - struct ak8975_data *data = iio_priv(indio_dev); - struct i2c_client *client = data->client; - int ret; - - mutex_lock(&data->lock); - /* Set up the device for taking a sample. */ - ret = ak8975_set_mode(data, MODE_ONCE); + int ret = ak8975_set_mode(data, MODE_ONCE); + if (ret < 0) { dev_err(&client->dev, "Error in setting operating mode\n"); - goto exit; + return ret; } /* Wait for the conversion to complete. */ @@ -659,7 +658,7 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val) else ret = wait_conversion_complete_polled(data); if (ret < 0) - goto exit; + return ret; /* This will be executed only for non-interrupt based waiting case */ if (ret & data->def->ctrl_masks[ST1_DRDY]) { @@ -667,32 +666,45 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val) data->def->ctrl_regs[ST2]); if (ret < 0) { dev_err(&client->dev, "Error in reading ST2\n"); - goto exit; + return ret; } if (ret & (data->def->ctrl_masks[ST2_DERR] | data->def->ctrl_masks[ST2_HOFL])) { dev_err(&client->dev, "ST2 status error 0x%x\n", ret); - ret = -EINVAL; - goto exit; + return -EINVAL; } } - /* Read the flux value from the appropriate register - (the register is specified in the iio device attributes). */ - ret = i2c_smbus_read_word_data(client, data->def->data_regs[index]); - if (ret < 0) { - dev_err(&client->dev, "Read axis data fails\n"); + return 0; +} + +/* Retrieve raw flux value for one of the x, y, or z axis. */ +static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val) +{ + struct ak8975_data *data = iio_priv(indio_dev); + const struct i2c_client *client = data->client; + const struct ak_def *def = data->def; + int ret; + + mutex_lock(&data->lock); + + ret = ak8975_start_read_axis(data, client); + if (ret) + goto exit; + + ret = i2c_smbus_read_word_data(client, def->data_regs[index]); + if (ret < 0) goto exit; - } mutex_unlock(&data->lock); /* Clamp to valid range. */ - *val = clamp_t(s16, ret, -data->def->range, data->def->range); + *val = clamp_t(s16, ret, -def->range, def->range); return IIO_VAL_INT; exit: mutex_unlock(&data->lock); + dev_err(&client->dev, "Error in reading axis\n"); return ret; } @@ -722,12 +734,22 @@ static int ak8975_read_raw(struct iio_dev *indio_dev, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ BIT(IIO_CHAN_INFO_SCALE), \ .address = index, \ + .scan_index = index, \ + .scan_type = { \ + .sign = 's', \ + .realbits = 16, \ + .storagebits = 16, \ + .endianness = IIO_CPU \ + } \ } static const struct iio_chan_spec ak8975_channels[] = { AK8975_CHANNEL(X, 0), AK8975_CHANNEL(Y, 1), AK8975_CHANNEL(Z, 2), + IIO_CHAN_SOFT_TIMESTAMP(3), }; +static const unsigned long ak8975_scan_masks[] = { 0x7, 0 }; + static const struct iio_info ak8975_info = { .read_raw = &ak8975_read_raw, .driver_module = THIS_MODULE, @@ -756,6 +778,56 @@ static const char *ak8975_match_acpi_device(struct device *dev, return dev_name(dev); } +static void ak8975_fill_buffer(struct iio_dev *indio_dev) +{ + struct ak8975_data *data = iio_priv(indio_dev); + const struct i2c_client *client = data->client; + const struct ak_def *def = data->def; + int ret; + s16 buff[8]; /* 3 x 16 bits axis values + 1 aligned 64 bits timestamp */ + + mutex_lock(&data->lock); + + ret = ak8975_start_read_axis(data, client); + if (ret) + goto unlock; + + /* + * For each axis, read the flux value from the appropriate register + * (the register is specified in the iio device attributes). + */ + ret = i2c_smbus_read_i2c_block_data_or_emulated(client, + def->data_regs[0], + 3 * sizeof(buff[0]), + (u8 *)buff); + if (ret < 0) + goto unlock; + + mutex_unlock(&data->lock); + + /* Clamp to valid range. */ + buff[0] = clamp_t(s16, le16_to_cpu(buff[0]), -def->range, def->range); + buff[1] = clamp_t(s16, le16_to_cpu(buff[1]), -def->range, def->range); + buff[2] = clamp_t(s16, le16_to_cpu(buff[2]), -def->range, def->range); + + iio_push_to_buffers_with_timestamp(indio_dev, buff, iio_get_time_ns()); + return; + +unlock: + mutex_unlock(&data->lock); + dev_err(&client->dev, "Error in reading axes block\n"); +} + +static irqreturn_t ak8975_handle_trigger(int irq, void *p) +{ + const struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + + ak8975_fill_buffer(indio_dev); + iio_trigger_notify_done(indio_dev->trig); + return IRQ_HANDLED; +} + static int ak8975_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -845,15 +917,27 @@ static int ak8975_probe(struct i2c_client *client, indio_dev->channels = ak8975_channels; indio_dev->num_channels = ARRAY_SIZE(ak8975_channels); indio_dev->info = &ak8975_info; + indio_dev->available_scan_masks = ak8975_scan_masks; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->name = name; - err = iio_device_register(indio_dev); - if (err) + err = iio_triggered_buffer_setup(indio_dev, NULL, ak8975_handle_trigger, + NULL); + if (err) { + dev_err(&client->dev, "triggered buffer setup failed\n"); goto power_off; + } + + err = iio_device_register(indio_dev); + if (err) { + dev_err(&client->dev, "device register failed\n"); + goto cleanup_buffer; + } return 0; +cleanup_buffer: + iio_triggered_buffer_cleanup(indio_dev); power_off: ak8975_power_off(client); return err; @@ -864,6 +948,7 @@ static int ak8975_remove(struct i2c_client *client) struct iio_dev *indio_dev = i2c_get_clientdata(client); iio_device_unregister(indio_dev); + iio_triggered_buffer_cleanup(indio_dev); ak8975_power_off(client); return 0; -- cgit v0.10.2 From 5ea9274b8613f87120bfa6b0c0abc384c26cefb9 Mon Sep 17 00:00:00 2001 From: Harald Geyer Date: Sun, 10 Apr 2016 13:03:18 +0000 Subject: iio: mxs-lradc: Move binding document out of staging as well commit f836c45922446df872250a12dd08e48978aceb2f moved mxs-lradc driver out of staging. However the binding document was left in the old place. Signed-off-by: Harald Geyer Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/adc/mxs-lradc.txt b/Documentation/devicetree/bindings/iio/adc/mxs-lradc.txt new file mode 100644 index 0000000..555fb11 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/mxs-lradc.txt @@ -0,0 +1,47 @@ +* Freescale MXS LRADC device driver + +Required properties: +- compatible: Should be "fsl,imx23-lradc" for i.MX23 SoC and "fsl,imx28-lradc" + for i.MX28 SoC +- reg: Address and length of the register set for the device +- interrupts: Should contain the LRADC interrupts + +Optional properties: +- fsl,lradc-touchscreen-wires: Number of wires used to connect the touchscreen + to LRADC. Valid value is either 4 or 5. If this + property is not present, then the touchscreen is + disabled. 5 wires is valid for i.MX28 SoC only. +- fsl,ave-ctrl: number of samples per direction to calculate an average value. + Allowed value is 1 ... 32, default is 4 +- fsl,ave-delay: delay between consecutive samples. Allowed value is + 2 ... 2048. It is used if 'fsl,ave-ctrl' > 1, counts at + 2 kHz and its default is 2 (= 1 ms) +- fsl,settling: delay between plate switch to next sample. Allowed value is + 1 ... 2047. It counts at 2 kHz and its default is + 10 (= 5 ms) + +Example for i.MX23 SoC: + + lradc@80050000 { + compatible = "fsl,imx23-lradc"; + reg = <0x80050000 0x2000>; + interrupts = <36 37 38 39 40 41 42 43 44>; + status = "okay"; + fsl,lradc-touchscreen-wires = <4>; + fsl,ave-ctrl = <4>; + fsl,ave-delay = <2>; + fsl,settling = <10>; + }; + +Example for i.MX28 SoC: + + lradc@80050000 { + compatible = "fsl,imx28-lradc"; + reg = <0x80050000 0x2000>; + interrupts = <10 14 15 16 17 18 19 20 21 22 23 24 25>; + status = "okay"; + fsl,lradc-touchscreen-wires = <5>; + fsl,ave-ctrl = <4>; + fsl,ave-delay = <2>; + fsl,settling = <10>; + }; diff --git a/Documentation/devicetree/bindings/staging/iio/adc/mxs-lradc.txt b/Documentation/devicetree/bindings/staging/iio/adc/mxs-lradc.txt deleted file mode 100644 index 555fb11..0000000 --- a/Documentation/devicetree/bindings/staging/iio/adc/mxs-lradc.txt +++ /dev/null @@ -1,47 +0,0 @@ -* Freescale MXS LRADC device driver - -Required properties: -- compatible: Should be "fsl,imx23-lradc" for i.MX23 SoC and "fsl,imx28-lradc" - for i.MX28 SoC -- reg: Address and length of the register set for the device -- interrupts: Should contain the LRADC interrupts - -Optional properties: -- fsl,lradc-touchscreen-wires: Number of wires used to connect the touchscreen - to LRADC. Valid value is either 4 or 5. If this - property is not present, then the touchscreen is - disabled. 5 wires is valid for i.MX28 SoC only. -- fsl,ave-ctrl: number of samples per direction to calculate an average value. - Allowed value is 1 ... 32, default is 4 -- fsl,ave-delay: delay between consecutive samples. Allowed value is - 2 ... 2048. It is used if 'fsl,ave-ctrl' > 1, counts at - 2 kHz and its default is 2 (= 1 ms) -- fsl,settling: delay between plate switch to next sample. Allowed value is - 1 ... 2047. It counts at 2 kHz and its default is - 10 (= 5 ms) - -Example for i.MX23 SoC: - - lradc@80050000 { - compatible = "fsl,imx23-lradc"; - reg = <0x80050000 0x2000>; - interrupts = <36 37 38 39 40 41 42 43 44>; - status = "okay"; - fsl,lradc-touchscreen-wires = <4>; - fsl,ave-ctrl = <4>; - fsl,ave-delay = <2>; - fsl,settling = <10>; - }; - -Example for i.MX28 SoC: - - lradc@80050000 { - compatible = "fsl,imx28-lradc"; - reg = <0x80050000 0x2000>; - interrupts = <10 14 15 16 17 18 19 20 21 22 23 24 25>; - status = "okay"; - fsl,lradc-touchscreen-wires = <5>; - fsl,ave-ctrl = <4>; - fsl,ave-delay = <2>; - fsl,settling = <10>; - }; -- cgit v0.10.2 From 56ca9db862bf3d78e279d424b3434d66617c27ae Mon Sep 17 00:00:00 2001 From: Paul Cercueil Date: Tue, 5 Apr 2016 09:46:19 +0200 Subject: iio: dac: Add support for the AD5592R/AD5593R ADCs/DACs This patch adds support for the AD5592R (spi) and AD5593R (i2c) ADC/DAC/GPIO devices. Signed-off-by: Paul Cercueil Signed-off-by: Michael Hennerich Reviewed-by: Linus Walleij Acked-by: Rob Herring Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/dac/ad5592r.txt b/Documentation/devicetree/bindings/iio/dac/ad5592r.txt new file mode 100644 index 0000000..989f96f --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/ad5592r.txt @@ -0,0 +1,155 @@ +Analog Devices AD5592R/AD5593R DAC/ADC device driver + +Required properties for the AD5592R: + - compatible: Must be "adi,ad5592r" + - reg: SPI chip select number for the device + - spi-max-frequency: Max SPI frequency to use (< 30000000) + - spi-cpol: The AD5592R requires inverse clock polarity (CPOL) mode + +Required properties for the AD5593R: + - compatible: Must be "adi,ad5593r" + - reg: I2C address of the device + +Required properties for all supported chips: + - #address-cells: Should be 1. + - #size-cells: Should be 0. + - channel nodes: + Each child node represents one channel and has the following + Required properties: + * reg: Pin on which this channel is connected to. + * adi,mode: Mode or function of this channel. + Macros specifying the valid values + can be found in . + + The following values are currently supported: + * CH_MODE_UNUSED (the pin is unused) + * CH_MODE_ADC (the pin is ADC input) + * CH_MODE_DAC (the pin is DAC output) + * CH_MODE_DAC_AND_ADC (the pin is DAC output + but can be monitored by an ADC, since + there is no disadvantage this + this should be considered as the + preferred DAC mode) + * CH_MODE_GPIO (the pin is registered + with GPIOLIB) + Optional properties: + * adi,off-state: State of this channel when unused or the + device gets removed. Macros specifying the + valid values can be found in + . + + * CH_OFFSTATE_PULLDOWN (the pin is pulled down) + * CH_OFFSTATE_OUT_LOW (the pin is output low) + * CH_OFFSTATE_OUT_HIGH (the pin is output high) + * CH_OFFSTATE_OUT_TRISTATE (the pin is + tristated output) + + +Optional properties: + - vref-supply: Phandle to the external reference voltage supply. This should + only be set if there is an external reference voltage connected to the VREF + pin. If the property is not set the internal 2.5V reference is used. + - reset-gpios : GPIO spec for the RESET pin. If specified, it will be + asserted during driver probe. + - gpio-controller: Marks the device node as a GPIO controller. + - #gpio-cells: Should be 2. The first cell is the GPIO number and the second + cell specifies GPIO flags, as defined in . + +AD5592R Example: + + #include + + vref: regulator-vref { + compatible = "regulator-fixed"; + regulator-name = "vref-ad559x"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + ad5592r@0 { + #size-cells = <0>; + #address-cells = <1>; + #gpio-cells = <2>; + compatible = "adi,ad5592r"; + reg = <0>; + + spi-max-frequency = <1000000>; + spi-cpol; + + vref-supply = <&vref>; /* optional */ + reset-gpios = <&gpio0 86 0>; /* optional */ + gpio-controller; + + channel@0 { + reg = <0>; + adi,mode = ; + }; + channel@1 { + reg = <1>; + adi,mode = ; + }; + channel@2 { + reg = <2>; + adi,mode = ; + }; + channel@3 { + reg = <3>; + adi,mode = ; + adi,off-state = ; + }; + channel@4 { + reg = <4>; + adi,mode = ; + adi,off-state = ; + }; + channel@5 { + reg = <5>; + adi,mode = ; + adi,off-state = ; + }; + channel@6 { + reg = <6>; + adi,mode = ; + adi,off-state = ; + }; + channel@7 { + reg = <7>; + adi,mode = ; + adi,off-state = ; + }; + }; + +AD5593R Example: + + #include + + ad5593r@10 { + #size-cells = <0>; + #address-cells = <1>; + #gpio-cells = <2>; + compatible = "adi,ad5593r"; + reg = <0x10>; + gpio-controller; + + channel@0 { + reg = <0>; + adi,mode = ; + adi,off-state = ; + }; + channel@1 { + reg = <1>; + adi,mode = ; + adi,off-state = ; + }; + channel@2 { + reg = <2>; + adi,mode = ; + adi,off-state = ; + }; + channel@6 { + reg = <6>; + adi,mode = ; + adi,off-state = ; + }; + }; diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig index 210db81..61d5008 100644 --- a/drivers/iio/dac/Kconfig +++ b/drivers/iio/dac/Kconfig @@ -74,6 +74,33 @@ config AD5449 To compile this driver as a module, choose M here: the module will be called ad5449. +config AD5592R_BASE + tristate + +config AD5592R + tristate "Analog Devices AD5592R ADC/DAC driver" + depends on SPI_MASTER + select GPIOLIB + select AD5592R_BASE + help + Say yes here to build support for Analog Devices AD5592R + Digital to Analog / Analog to Digital Converter. + + To compile this driver as a module, choose M here: the + module will be called ad5592r. + +config AD5593R + tristate "Analog Devices AD5593R ADC/DAC driver" + depends on I2C + select GPIOLIB + select AD5592R_BASE + help + Say yes here to build support for Analog Devices AD5593R + Digital to Analog / Analog to Digital Converter. + + To compile this driver as a module, choose M here: the + module will be called ad5593r. + config AD5504 tristate "Analog Devices AD5504/AD5501 DAC SPI driver" depends on SPI diff --git a/drivers/iio/dac/Makefile b/drivers/iio/dac/Makefile index 420a15c..8b78d5c 100644 --- a/drivers/iio/dac/Makefile +++ b/drivers/iio/dac/Makefile @@ -11,6 +11,9 @@ obj-$(CONFIG_AD5064) += ad5064.o obj-$(CONFIG_AD5504) += ad5504.o obj-$(CONFIG_AD5446) += ad5446.o obj-$(CONFIG_AD5449) += ad5449.o +obj-$(CONFIG_AD5592R_BASE) += ad5592r-base.o +obj-$(CONFIG_AD5592R) += ad5592r.o +obj-$(CONFIG_AD5593R) += ad5593r.o obj-$(CONFIG_AD5755) += ad5755.o obj-$(CONFIG_AD5761) += ad5761.o obj-$(CONFIG_AD5764) += ad5764.o diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c new file mode 100644 index 0000000..948f600 --- /dev/null +++ b/drivers/iio/dac/ad5592r-base.c @@ -0,0 +1,691 @@ +/* + * AD5592R Digital <-> Analog converters driver + * + * Copyright 2014-2016 Analog Devices Inc. + * Author: Paul Cercueil + * + * Licensed under the GPL-2. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "ad5592r-base.h" + +static int ad5592r_gpio_get(struct gpio_chip *chip, unsigned offset) +{ + struct ad5592r_state *st = gpiochip_get_data(chip); + int ret = 0; + u8 val; + + mutex_lock(&st->gpio_lock); + + if (st->gpio_out & BIT(offset)) + val = st->gpio_val; + else + ret = st->ops->gpio_read(st, &val); + + mutex_unlock(&st->gpio_lock); + + if (ret < 0) + return ret; + + return !!(val & BIT(offset)); +} + +static void ad5592r_gpio_set(struct gpio_chip *chip, unsigned offset, int value) +{ + struct ad5592r_state *st = gpiochip_get_data(chip); + + mutex_lock(&st->gpio_lock); + + if (value) + st->gpio_val |= BIT(offset); + else + st->gpio_val &= ~BIT(offset); + + st->ops->reg_write(st, AD5592R_REG_GPIO_SET, st->gpio_val); + + mutex_unlock(&st->gpio_lock); +} + +static int ad5592r_gpio_direction_input(struct gpio_chip *chip, unsigned offset) +{ + struct ad5592r_state *st = gpiochip_get_data(chip); + int ret; + + mutex_lock(&st->gpio_lock); + + st->gpio_out &= ~BIT(offset); + st->gpio_in |= BIT(offset); + + ret = st->ops->reg_write(st, AD5592R_REG_GPIO_OUT_EN, st->gpio_out); + if (ret < 0) + goto err_unlock; + + ret = st->ops->reg_write(st, AD5592R_REG_GPIO_IN_EN, st->gpio_in); + +err_unlock: + mutex_unlock(&st->gpio_lock); + + return ret; +} + +static int ad5592r_gpio_direction_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct ad5592r_state *st = gpiochip_get_data(chip); + int ret; + + mutex_lock(&st->gpio_lock); + + if (value) + st->gpio_val |= BIT(offset); + else + st->gpio_val &= ~BIT(offset); + + st->gpio_in &= ~BIT(offset); + st->gpio_out |= BIT(offset); + + ret = st->ops->reg_write(st, AD5592R_REG_GPIO_SET, st->gpio_val); + if (ret < 0) + goto err_unlock; + + ret = st->ops->reg_write(st, AD5592R_REG_GPIO_OUT_EN, st->gpio_out); + if (ret < 0) + goto err_unlock; + + ret = st->ops->reg_write(st, AD5592R_REG_GPIO_IN_EN, st->gpio_in); + +err_unlock: + mutex_unlock(&st->gpio_lock); + + return ret; +} + +static int ad5592r_gpio_request(struct gpio_chip *chip, unsigned offset) +{ + struct ad5592r_state *st = gpiochip_get_data(chip); + + if (!(st->gpio_map & BIT(offset))) { + dev_err(st->dev, "GPIO %d is reserved by alternate function\n", + offset); + return -ENODEV; + } + + return 0; +} + +static int ad5592r_gpio_init(struct ad5592r_state *st) +{ + if (!st->gpio_map) + return 0; + + st->gpiochip.label = dev_name(st->dev); + st->gpiochip.base = -1; + st->gpiochip.ngpio = 8; + st->gpiochip.parent = st->dev; + st->gpiochip.can_sleep = true; + st->gpiochip.direction_input = ad5592r_gpio_direction_input; + st->gpiochip.direction_output = ad5592r_gpio_direction_output; + st->gpiochip.get = ad5592r_gpio_get; + st->gpiochip.set = ad5592r_gpio_set; + st->gpiochip.request = ad5592r_gpio_request; + st->gpiochip.owner = THIS_MODULE; + + mutex_init(&st->gpio_lock); + + return gpiochip_add_data(&st->gpiochip, st); +} + +static void ad5592r_gpio_cleanup(struct ad5592r_state *st) +{ + if (st->gpio_map) + gpiochip_remove(&st->gpiochip); +} + +static int ad5592r_reset(struct ad5592r_state *st) +{ + struct gpio_desc *gpio; + struct iio_dev *iio_dev = iio_priv_to_dev(st); + + gpio = devm_gpiod_get_optional(st->dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(gpio)) + return PTR_ERR(gpio); + + if (gpio) { + udelay(1); + gpiod_set_value(gpio, 1); + } else { + mutex_lock(&iio_dev->mlock); + /* Writing this magic value resets the device */ + st->ops->reg_write(st, AD5592R_REG_RESET, 0xdac); + mutex_unlock(&iio_dev->mlock); + } + + udelay(250); + + return 0; +} + +static int ad5592r_get_vref(struct ad5592r_state *st) +{ + int ret; + + if (st->reg) { + ret = regulator_get_voltage(st->reg); + if (ret < 0) + return ret; + + return ret / 1000; + } else { + return 2500; + } +} + +static int ad5592r_set_channel_modes(struct ad5592r_state *st) +{ + const struct ad5592r_rw_ops *ops = st->ops; + int ret; + unsigned i; + struct iio_dev *iio_dev = iio_priv_to_dev(st); + u8 pulldown = 0, tristate = 0, dac = 0, adc = 0; + u16 read_back; + + for (i = 0; i < st->num_channels; i++) { + switch (st->channel_modes[i]) { + case CH_MODE_DAC: + dac |= BIT(i); + break; + + case CH_MODE_ADC: + adc |= BIT(i); + break; + + case CH_MODE_DAC_AND_ADC: + dac |= BIT(i); + adc |= BIT(i); + break; + + case CH_MODE_GPIO: + st->gpio_map |= BIT(i); + st->gpio_in |= BIT(i); /* Default to input */ + break; + + case CH_MODE_UNUSED: + /* fall-through */ + default: + switch (st->channel_offstate[i]) { + case CH_OFFSTATE_OUT_TRISTATE: + tristate |= BIT(i); + break; + + case CH_OFFSTATE_OUT_LOW: + st->gpio_out |= BIT(i); + break; + + case CH_OFFSTATE_OUT_HIGH: + st->gpio_out |= BIT(i); + st->gpio_val |= BIT(i); + break; + + case CH_OFFSTATE_PULLDOWN: + /* fall-through */ + default: + pulldown |= BIT(i); + break; + } + } + } + + mutex_lock(&iio_dev->mlock); + + /* Pull down unused pins to GND */ + ret = ops->reg_write(st, AD5592R_REG_PULLDOWN, pulldown); + if (ret) + goto err_unlock; + + ret = ops->reg_write(st, AD5592R_REG_TRISTATE, tristate); + if (ret) + goto err_unlock; + + /* Configure pins that we use */ + ret = ops->reg_write(st, AD5592R_REG_DAC_EN, dac); + if (ret) + goto err_unlock; + + ret = ops->reg_write(st, AD5592R_REG_ADC_EN, adc); + if (ret) + goto err_unlock; + + ret = ops->reg_write(st, AD5592R_REG_GPIO_SET, st->gpio_val); + if (ret) + goto err_unlock; + + ret = ops->reg_write(st, AD5592R_REG_GPIO_OUT_EN, st->gpio_out); + if (ret) + goto err_unlock; + + ret = ops->reg_write(st, AD5592R_REG_GPIO_IN_EN, st->gpio_in); + if (ret) + goto err_unlock; + + /* Verify that we can read back at least one register */ + ret = ops->reg_read(st, AD5592R_REG_ADC_EN, &read_back); + if (!ret && (read_back & 0xff) != adc) + ret = -EIO; + +err_unlock: + mutex_unlock(&iio_dev->mlock); + return ret; +} + +static int ad5592r_reset_channel_modes(struct ad5592r_state *st) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(st->channel_modes); i++) + st->channel_modes[i] = CH_MODE_UNUSED; + + return ad5592r_set_channel_modes(st); +} + +static int ad5592r_write_raw(struct iio_dev *iio_dev, + struct iio_chan_spec const *chan, int val, int val2, long mask) +{ + struct ad5592r_state *st = iio_priv(iio_dev); + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + + if (val >= (1 << chan->scan_type.realbits) || val < 0) + return -EINVAL; + + if (!chan->output) + return -EINVAL; + + mutex_lock(&iio_dev->mlock); + ret = st->ops->write_dac(st, chan->channel, val); + if (!ret) + st->cached_dac[chan->channel] = val; + mutex_unlock(&iio_dev->mlock); + return ret; + case IIO_CHAN_INFO_SCALE: + if (chan->type == IIO_VOLTAGE) { + bool gain; + + if (val == st->scale_avail[0][0] && + val2 == st->scale_avail[0][1]) + gain = false; + else if (val == st->scale_avail[1][0] && + val2 == st->scale_avail[1][1]) + gain = true; + else + return -EINVAL; + + mutex_lock(&iio_dev->mlock); + + ret = st->ops->reg_read(st, AD5592R_REG_CTRL, + &st->cached_gp_ctrl); + if (ret < 0) { + mutex_unlock(&iio_dev->mlock); + return ret; + } + + if (chan->output) { + if (gain) + st->cached_gp_ctrl |= + AD5592R_REG_CTRL_DAC_RANGE; + else + st->cached_gp_ctrl &= + ~AD5592R_REG_CTRL_DAC_RANGE; + } else { + if (gain) + st->cached_gp_ctrl |= + AD5592R_REG_CTRL_ADC_RANGE; + else + st->cached_gp_ctrl &= + ~AD5592R_REG_CTRL_ADC_RANGE; + } + + ret = st->ops->reg_write(st, AD5592R_REG_CTRL, + st->cached_gp_ctrl); + mutex_unlock(&iio_dev->mlock); + + return ret; + } + break; + default: + return -EINVAL; + } + + return 0; +} + +static int ad5592r_read_raw(struct iio_dev *iio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long m) +{ + struct ad5592r_state *st = iio_priv(iio_dev); + u16 read_val; + int ret; + + switch (m) { + case IIO_CHAN_INFO_RAW: + mutex_lock(&iio_dev->mlock); + + if (!chan->output) { + ret = st->ops->read_adc(st, chan->channel, &read_val); + if (ret) + goto unlock; + + if ((read_val >> 12 & 0x7) != (chan->channel & 0x7)) { + dev_err(st->dev, "Error while reading channel %u\n", + chan->channel); + ret = -EIO; + goto unlock; + } + + read_val &= GENMASK(11, 0); + + } else { + read_val = st->cached_dac[chan->channel]; + } + + dev_dbg(st->dev, "Channel %u read: 0x%04hX\n", + chan->channel, read_val); + + *val = (int) read_val; + ret = IIO_VAL_INT; + break; + case IIO_CHAN_INFO_SCALE: + *val = ad5592r_get_vref(st); + + if (chan->type == IIO_TEMP) { + s64 tmp = *val * (3767897513LL / 25LL); + *val = div_s64_rem(tmp, 1000000000LL, val2); + + ret = IIO_VAL_INT_PLUS_MICRO; + } else { + int mult; + + mutex_lock(&iio_dev->mlock); + + if (chan->output) + mult = !!(st->cached_gp_ctrl & + AD5592R_REG_CTRL_DAC_RANGE); + else + mult = !!(st->cached_gp_ctrl & + AD5592R_REG_CTRL_ADC_RANGE); + + *val *= ++mult; + + *val2 = chan->scan_type.realbits; + ret = IIO_VAL_FRACTIONAL_LOG2; + } + break; + case IIO_CHAN_INFO_OFFSET: + ret = ad5592r_get_vref(st); + + mutex_lock(&iio_dev->mlock); + + if (st->cached_gp_ctrl & AD5592R_REG_CTRL_ADC_RANGE) + *val = (-34365 * 25) / ret; + else + *val = (-75365 * 25) / ret; + ret = IIO_VAL_INT; + break; + default: + ret = -EINVAL; + } + +unlock: + mutex_unlock(&iio_dev->mlock); + return ret; +} + +static int ad5592r_write_raw_get_fmt(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_SCALE: + return IIO_VAL_INT_PLUS_NANO; + + default: + return IIO_VAL_INT_PLUS_MICRO; + } + + return -EINVAL; +} + +static const struct iio_info ad5592r_info = { + .read_raw = ad5592r_read_raw, + .write_raw = ad5592r_write_raw, + .write_raw_get_fmt = ad5592r_write_raw_get_fmt, + .driver_module = THIS_MODULE, +}; + +static ssize_t ad5592r_show_scale_available(struct iio_dev *iio_dev, + uintptr_t private, + const struct iio_chan_spec *chan, + char *buf) +{ + struct ad5592r_state *st = iio_priv(iio_dev); + + return sprintf(buf, "%d.%09u %d.%09u\n", + st->scale_avail[0][0], st->scale_avail[0][1], + st->scale_avail[1][0], st->scale_avail[1][1]); +} + +static struct iio_chan_spec_ext_info ad5592r_ext_info[] = { + { + .name = "scale_available", + .read = ad5592r_show_scale_available, + .shared = true, + }, + {}, +}; + +static void ad5592r_setup_channel(struct iio_dev *iio_dev, + struct iio_chan_spec *chan, bool output, unsigned id) +{ + chan->type = IIO_VOLTAGE; + chan->indexed = 1; + chan->output = output; + chan->channel = id; + chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW); + chan->info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE); + chan->scan_type.sign = 'u'; + chan->scan_type.realbits = 12; + chan->scan_type.storagebits = 16; + chan->ext_info = ad5592r_ext_info; +} + +static int ad5592r_alloc_channels(struct ad5592r_state *st) +{ + unsigned i, curr_channel = 0, + num_channels = st->num_channels; + struct iio_dev *iio_dev = iio_priv_to_dev(st); + struct iio_chan_spec *channels; + struct fwnode_handle *child; + u32 reg, tmp; + int ret; + + device_for_each_child_node(st->dev, child) { + ret = fwnode_property_read_u32(child, "reg", ®); + if (ret || reg > ARRAY_SIZE(st->channel_modes)) + continue; + + ret = fwnode_property_read_u32(child, "adi,mode", &tmp); + if (!ret) + st->channel_modes[reg] = tmp; + + fwnode_property_read_u32(child, "adi,off-state", &tmp); + if (!ret) + st->channel_offstate[reg] = tmp; + } + + channels = devm_kzalloc(st->dev, + (1 + 2 * num_channels) * sizeof(*channels), GFP_KERNEL); + if (!channels) + return -ENOMEM; + + for (i = 0; i < num_channels; i++) { + switch (st->channel_modes[i]) { + case CH_MODE_DAC: + ad5592r_setup_channel(iio_dev, &channels[curr_channel], + true, i); + curr_channel++; + break; + + case CH_MODE_ADC: + ad5592r_setup_channel(iio_dev, &channels[curr_channel], + false, i); + curr_channel++; + break; + + case CH_MODE_DAC_AND_ADC: + ad5592r_setup_channel(iio_dev, &channels[curr_channel], + true, i); + curr_channel++; + ad5592r_setup_channel(iio_dev, &channels[curr_channel], + false, i); + curr_channel++; + break; + + default: + continue; + } + } + + channels[curr_channel].type = IIO_TEMP; + channels[curr_channel].channel = 8; + channels[curr_channel].info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_OFFSET); + curr_channel++; + + iio_dev->num_channels = curr_channel; + iio_dev->channels = channels; + + return 0; +} + +static void ad5592r_init_scales(struct ad5592r_state *st, int vref_mV) +{ + s64 tmp = (s64)vref_mV * 1000000000LL >> 12; + + st->scale_avail[0][0] = + div_s64_rem(tmp, 1000000000LL, &st->scale_avail[0][1]); + st->scale_avail[1][0] = + div_s64_rem(tmp * 2, 1000000000LL, &st->scale_avail[1][1]); +} + +int ad5592r_probe(struct device *dev, const char *name, + const struct ad5592r_rw_ops *ops) +{ + struct iio_dev *iio_dev; + struct ad5592r_state *st; + int ret; + + iio_dev = devm_iio_device_alloc(dev, sizeof(*st)); + if (!iio_dev) + return -ENOMEM; + + st = iio_priv(iio_dev); + st->dev = dev; + st->ops = ops; + st->num_channels = 8; + dev_set_drvdata(dev, iio_dev); + + st->reg = devm_regulator_get_optional(dev, "vref"); + if (IS_ERR(st->reg)) { + if ((PTR_ERR(st->reg) != -ENODEV) && dev->of_node) + return PTR_ERR(st->reg); + + st->reg = NULL; + } else { + ret = regulator_enable(st->reg); + if (ret) + return ret; + } + + iio_dev->dev.parent = dev; + iio_dev->name = name; + iio_dev->info = &ad5592r_info; + iio_dev->modes = INDIO_DIRECT_MODE; + + ad5592r_init_scales(st, ad5592r_get_vref(st)); + + ret = ad5592r_reset(st); + if (ret) + goto error_disable_reg; + + ret = ops->reg_write(st, AD5592R_REG_PD, + (st->reg == NULL) ? AD5592R_REG_PD_EN_REF : 0); + if (ret) + goto error_disable_reg; + + ret = ad5592r_alloc_channels(st); + if (ret) + goto error_disable_reg; + + ret = ad5592r_set_channel_modes(st); + if (ret) + goto error_reset_ch_modes; + + ret = iio_device_register(iio_dev); + if (ret) + goto error_reset_ch_modes; + + ret = ad5592r_gpio_init(st); + if (ret) + goto error_dev_unregister; + + return 0; + +error_dev_unregister: + iio_device_unregister(iio_dev); + +error_reset_ch_modes: + ad5592r_reset_channel_modes(st); + +error_disable_reg: + if (st->reg) + regulator_disable(st->reg); + + return ret; +} +EXPORT_SYMBOL_GPL(ad5592r_probe); + +int ad5592r_remove(struct device *dev) +{ + struct iio_dev *iio_dev = dev_get_drvdata(dev); + struct ad5592r_state *st = iio_priv(iio_dev); + + iio_device_unregister(iio_dev); + ad5592r_reset_channel_modes(st); + ad5592r_gpio_cleanup(st); + + if (st->reg) + regulator_disable(st->reg); + + return 0; +} +EXPORT_SYMBOL_GPL(ad5592r_remove); + +MODULE_AUTHOR("Paul Cercueil "); +MODULE_DESCRIPTION("Analog Devices AD5592R multi-channel converters"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/dac/ad5592r-base.h b/drivers/iio/dac/ad5592r-base.h new file mode 100644 index 0000000..841457e --- /dev/null +++ b/drivers/iio/dac/ad5592r-base.h @@ -0,0 +1,76 @@ +/* + * AD5592R / AD5593R Digital <-> Analog converters driver + * + * Copyright 2015-2016 Analog Devices Inc. + * Author: Paul Cercueil + * + * Licensed under the GPL-2. + */ + +#ifndef __DRIVERS_IIO_DAC_AD5592R_BASE_H__ +#define __DRIVERS_IIO_DAC_AD5592R_BASE_H__ + +#include +#include +#include +#include + +struct device; +struct ad5592r_state; + +enum ad5592r_registers { + AD5592R_REG_NOOP = 0x0, + AD5592R_REG_DAC_READBACK = 0x1, + AD5592R_REG_ADC_SEQ = 0x2, + AD5592R_REG_CTRL = 0x3, + AD5592R_REG_ADC_EN = 0x4, + AD5592R_REG_DAC_EN = 0x5, + AD5592R_REG_PULLDOWN = 0x6, + AD5592R_REG_LDAC = 0x7, + AD5592R_REG_GPIO_OUT_EN = 0x8, + AD5592R_REG_GPIO_SET = 0x9, + AD5592R_REG_GPIO_IN_EN = 0xA, + AD5592R_REG_PD = 0xB, + AD5592R_REG_OPEN_DRAIN = 0xC, + AD5592R_REG_TRISTATE = 0xD, + AD5592R_REG_RESET = 0xF, +}; + +#define AD5592R_REG_PD_EN_REF BIT(9) +#define AD5592R_REG_CTRL_ADC_RANGE BIT(5) +#define AD5592R_REG_CTRL_DAC_RANGE BIT(4) + +struct ad5592r_rw_ops { + int (*write_dac)(struct ad5592r_state *st, unsigned chan, u16 value); + int (*read_adc)(struct ad5592r_state *st, unsigned chan, u16 *value); + int (*reg_write)(struct ad5592r_state *st, u8 reg, u16 value); + int (*reg_read)(struct ad5592r_state *st, u8 reg, u16 *value); + int (*gpio_read)(struct ad5592r_state *st, u8 *value); +}; + +struct ad5592r_state { + struct device *dev; + struct regulator *reg; + struct gpio_chip gpiochip; + struct mutex gpio_lock; /* Protect cached gpio_out, gpio_val, etc. */ + unsigned int num_channels; + const struct ad5592r_rw_ops *ops; + int scale_avail[2][2]; + u16 cached_dac[8]; + u16 cached_gp_ctrl; + u8 channel_modes[8]; + u8 channel_offstate[8]; + u8 gpio_map; + u8 gpio_out; + u8 gpio_in; + u8 gpio_val; + + __be16 spi_msg ____cacheline_aligned; + __be16 spi_msg_nop; +}; + +int ad5592r_probe(struct device *dev, const char *name, + const struct ad5592r_rw_ops *ops); +int ad5592r_remove(struct device *dev); + +#endif /* __DRIVERS_IIO_DAC_AD5592R_BASE_H__ */ diff --git a/drivers/iio/dac/ad5592r.c b/drivers/iio/dac/ad5592r.c new file mode 100644 index 0000000..0b235a2 --- /dev/null +++ b/drivers/iio/dac/ad5592r.c @@ -0,0 +1,164 @@ +/* + * AD5592R Digital <-> Analog converters driver + * + * Copyright 2015-2016 Analog Devices Inc. + * Author: Paul Cercueil + * + * Licensed under the GPL-2. + */ + +#include "ad5592r-base.h" + +#include +#include +#include +#include + +#define AD5592R_GPIO_READBACK_EN BIT(10) +#define AD5592R_LDAC_READBACK_EN BIT(6) + +static int ad5592r_spi_wnop_r16(struct ad5592r_state *st, u16 *buf) +{ + struct spi_device *spi = container_of(st->dev, struct spi_device, dev); + struct spi_transfer t = { + .tx_buf = &st->spi_msg_nop, + .rx_buf = buf, + .len = 2 + }; + + st->spi_msg_nop = 0; /* NOP */ + + return spi_sync_transfer(spi, &t, 1); +} + +static int ad5592r_write_dac(struct ad5592r_state *st, unsigned chan, u16 value) +{ + struct spi_device *spi = container_of(st->dev, struct spi_device, dev); + + st->spi_msg = cpu_to_be16(BIT(15) | (chan << 12) | value); + + return spi_write(spi, &st->spi_msg, sizeof(st->spi_msg)); +} + +static int ad5592r_read_adc(struct ad5592r_state *st, unsigned chan, u16 *value) +{ + struct spi_device *spi = container_of(st->dev, struct spi_device, dev); + int ret; + + st->spi_msg = cpu_to_be16((AD5592R_REG_ADC_SEQ << 11) | BIT(chan)); + + ret = spi_write(spi, &st->spi_msg, sizeof(st->spi_msg)); + if (ret) + return ret; + + /* + * Invalid data: + * See Figure 40. Single-Channel ADC Conversion Sequence + */ + ret = ad5592r_spi_wnop_r16(st, &st->spi_msg); + if (ret) + return ret; + + ret = ad5592r_spi_wnop_r16(st, &st->spi_msg); + if (ret) + return ret; + + *value = be16_to_cpu(st->spi_msg); + + return 0; +} + +static int ad5592r_reg_write(struct ad5592r_state *st, u8 reg, u16 value) +{ + struct spi_device *spi = container_of(st->dev, struct spi_device, dev); + + st->spi_msg = cpu_to_be16((reg << 11) | value); + + return spi_write(spi, &st->spi_msg, sizeof(st->spi_msg)); +} + +static int ad5592r_reg_read(struct ad5592r_state *st, u8 reg, u16 *value) +{ + struct spi_device *spi = container_of(st->dev, struct spi_device, dev); + int ret; + + st->spi_msg = cpu_to_be16((AD5592R_REG_LDAC << 11) | + AD5592R_LDAC_READBACK_EN | (reg << 2)); + + ret = spi_write(spi, &st->spi_msg, sizeof(st->spi_msg)); + if (ret) + return ret; + + ret = ad5592r_spi_wnop_r16(st, &st->spi_msg); + if (ret) + return ret; + + *value = be16_to_cpu(st->spi_msg); + + return 0; +} + +static int ad5593r_gpio_read(struct ad5592r_state *st, u8 *value) +{ + int ret; + + ret = ad5592r_reg_write(st, AD5592R_REG_GPIO_IN_EN, + AD5592R_GPIO_READBACK_EN | st->gpio_in); + if (ret) + return ret; + + ret = ad5592r_spi_wnop_r16(st, &st->spi_msg); + if (ret) + return ret; + + *value = (u8) be16_to_cpu(st->spi_msg); + + return 0; +} + +static const struct ad5592r_rw_ops ad5592r_rw_ops = { + .write_dac = ad5592r_write_dac, + .read_adc = ad5592r_read_adc, + .reg_write = ad5592r_reg_write, + .reg_read = ad5592r_reg_read, + .gpio_read = ad5593r_gpio_read, +}; + +static int ad5592r_spi_probe(struct spi_device *spi) +{ + const struct spi_device_id *id = spi_get_device_id(spi); + + return ad5592r_probe(&spi->dev, id->name, &ad5592r_rw_ops); +} + +static int ad5592r_spi_remove(struct spi_device *spi) +{ + return ad5592r_remove(&spi->dev); +} + +static const struct spi_device_id ad5592r_spi_ids[] = { + { .name = "ad5592r", }, + {} +}; +MODULE_DEVICE_TABLE(spi, ad5592r_spi_ids); + +static const struct of_device_id ad5592r_of_match[] = { + { .compatible = "adi,ad5592r", }, + {}, +}; +MODULE_DEVICE_TABLE(of, ad5592r_of_match); + +static struct spi_driver ad5592r_spi_driver = { + .driver = { + .name = "ad5592r", + .of_match_table = of_match_ptr(ad5592r_of_match), + }, + .probe = ad5592r_spi_probe, + .remove = ad5592r_spi_remove, + .id_table = ad5592r_spi_ids, +}; +module_spi_driver(ad5592r_spi_driver); + +MODULE_AUTHOR("Paul Cercueil "); +MODULE_DESCRIPTION("Analog Devices AD5592R multi-channel converters"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/dac/ad5593r.c b/drivers/iio/dac/ad5593r.c new file mode 100644 index 0000000..dca158a --- /dev/null +++ b/drivers/iio/dac/ad5593r.c @@ -0,0 +1,131 @@ +/* + * AD5593R Digital <-> Analog converters driver + * + * Copyright 2015-2016 Analog Devices Inc. + * Author: Paul Cercueil + * + * Licensed under the GPL-2. + */ + +#include "ad5592r-base.h" + +#include +#include +#include +#include + +#define AD5593R_MODE_CONF (0 << 4) +#define AD5593R_MODE_DAC_WRITE (1 << 4) +#define AD5593R_MODE_ADC_READBACK (4 << 4) +#define AD5593R_MODE_DAC_READBACK (5 << 4) +#define AD5593R_MODE_GPIO_READBACK (6 << 4) +#define AD5593R_MODE_REG_READBACK (7 << 4) + +static int ad5593r_write_dac(struct ad5592r_state *st, unsigned chan, u16 value) +{ + struct i2c_client *i2c = to_i2c_client(st->dev); + + return i2c_smbus_write_word_swapped(i2c, + AD5593R_MODE_DAC_WRITE | chan, value); +} + +static int ad5593r_read_adc(struct ad5592r_state *st, unsigned chan, u16 *value) +{ + struct i2c_client *i2c = to_i2c_client(st->dev); + s32 val; + + val = i2c_smbus_write_word_swapped(i2c, + AD5593R_MODE_CONF | AD5592R_REG_ADC_SEQ, BIT(chan)); + if (val < 0) + return (int) val; + + val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_ADC_READBACK); + if (val < 0) + return (int) val; + + *value = (u16) val; + + return 0; +} + +static int ad5593r_reg_write(struct ad5592r_state *st, u8 reg, u16 value) +{ + struct i2c_client *i2c = to_i2c_client(st->dev); + + return i2c_smbus_write_word_swapped(i2c, + AD5593R_MODE_CONF | reg, value); +} + +static int ad5593r_reg_read(struct ad5592r_state *st, u8 reg, u16 *value) +{ + struct i2c_client *i2c = to_i2c_client(st->dev); + s32 val; + + val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_REG_READBACK | reg); + if (val < 0) + return (int) val; + + *value = (u16) val; + + return 0; +} + +static int ad5593r_gpio_read(struct ad5592r_state *st, u8 *value) +{ + struct i2c_client *i2c = to_i2c_client(st->dev); + s32 val; + + val = i2c_smbus_read_word_swapped(i2c, AD5593R_MODE_GPIO_READBACK); + if (val < 0) + return (int) val; + + *value = (u8) val; + + return 0; +} + +static const struct ad5592r_rw_ops ad5593r_rw_ops = { + .write_dac = ad5593r_write_dac, + .read_adc = ad5593r_read_adc, + .reg_write = ad5593r_reg_write, + .reg_read = ad5593r_reg_read, + .gpio_read = ad5593r_gpio_read, +}; + +static int ad5593r_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + return ad5592r_probe(&i2c->dev, id->name, &ad5593r_rw_ops); +} + +static int ad5593r_i2c_remove(struct i2c_client *i2c) +{ + return ad5592r_remove(&i2c->dev); +} + +static const struct i2c_device_id ad5593r_i2c_ids[] = { + { .name = "ad5593r", }, + {}, +}; +MODULE_DEVICE_TABLE(i2c, ad5593r_i2c_ids); + +static const struct of_device_id ad5593r_of_match[] = { + { .compatible = "adi,ad5593r", }, + {}, +}; +MODULE_DEVICE_TABLE(of, ad5593r_of_match); + +static struct i2c_driver ad5593r_driver = { + .driver = { + .name = "ad5593r", + .of_match_table = of_match_ptr(ad5593r_of_match), + }, + .probe = ad5593r_i2c_probe, + .remove = ad5593r_i2c_remove, + .id_table = ad5593r_i2c_ids, +}; +module_i2c_driver(ad5593r_driver); + +MODULE_AUTHOR("Paul Cercueil "); +MODULE_DESCRIPTION("Analog Devices AD5592R multi-channel converters"); +MODULE_LICENSE("GPL v2"); diff --git a/include/dt-bindings/iio/adi,ad5592r.h b/include/dt-bindings/iio/adi,ad5592r.h new file mode 100644 index 0000000..c48aca1 --- /dev/null +++ b/include/dt-bindings/iio/adi,ad5592r.h @@ -0,0 +1,16 @@ + +#ifndef _DT_BINDINGS_ADI_AD5592R_H +#define _DT_BINDINGS_ADI_AD5592R_H + +#define CH_MODE_UNUSED 0 +#define CH_MODE_ADC 1 +#define CH_MODE_DAC 2 +#define CH_MODE_DAC_AND_ADC 3 +#define CH_MODE_GPIO 8 + +#define CH_OFFSTATE_PULLDOWN 0 +#define CH_OFFSTATE_OUT_LOW 1 +#define CH_OFFSTATE_OUT_HIGH 2 +#define CH_OFFSTATE_OUT_TRISTATE 3 + +#endif /* _DT_BINDINGS_ADI_AD5592R_H */ -- cgit v0.10.2 From c455e58354adcde7ba1ebf3d753eba9a07cd587d Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Tue, 5 Apr 2016 22:18:44 -0700 Subject: iio: accel: mma7455: use regmap to retrieve struct device Driver includes struct regmap and struct device in its global data. Remove the struct device and use regmap API to retrieve device info. Patch created using Coccinelle plus manual edits. Signed-off-by: Alison Schofield Acked-by: Joachim Eastwood Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/mma7455_core.c b/drivers/iio/accel/mma7455_core.c index c633cc2..c902f54 100644 --- a/drivers/iio/accel/mma7455_core.c +++ b/drivers/iio/accel/mma7455_core.c @@ -55,11 +55,11 @@ struct mma7455_data { struct regmap *regmap; - struct device *dev; }; static int mma7455_drdy(struct mma7455_data *mma7455) { + struct device *dev = regmap_get_device(mma7455->regmap); unsigned int reg; int tries = 3; int ret; @@ -75,7 +75,7 @@ static int mma7455_drdy(struct mma7455_data *mma7455) msleep(20); } - dev_warn(mma7455->dev, "data not ready\n"); + dev_warn(dev, "data not ready\n"); return -EIO; } @@ -260,7 +260,6 @@ int mma7455_core_probe(struct device *dev, struct regmap *regmap, dev_set_drvdata(dev, indio_dev); mma7455 = iio_priv(indio_dev); mma7455->regmap = regmap; - mma7455->dev = dev; indio_dev->info = &mma7455_info; indio_dev->name = name; -- cgit v0.10.2 From ff5c37e3eae2cdba4aba13dc8c7e840abb41e4bb Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Tue, 5 Apr 2016 21:11:31 -0700 Subject: staging: iio: ad7606: use iio_device_{claim|release}_direct_mode() Replace the code that guarantees the device stays in direct mode with iio_device_{claim|release}_direct_mode() which does same. Signed-off-by: Alison Schofield Acked-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c index 6dbc811..f79ee61 100644 --- a/drivers/staging/iio/adc/ad7606_core.c +++ b/drivers/staging/iio/adc/ad7606_core.c @@ -88,12 +88,12 @@ static int ad7606_read_raw(struct iio_dev *indio_dev, switch (m) { case IIO_CHAN_INFO_RAW: - mutex_lock(&indio_dev->mlock); - if (iio_buffer_enabled(indio_dev)) - ret = -EBUSY; - else - ret = ad7606_scan_direct(indio_dev, chan->address); - mutex_unlock(&indio_dev->mlock); + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; + + ret = ad7606_scan_direct(indio_dev, chan->address); + iio_device_release_direct_mode(indio_dev); if (ret < 0) return ret; -- cgit v0.10.2 From ab4b6496a26f87ceff95ee6c0449e6ac2de2f2e4 Mon Sep 17 00:00:00 2001 From: Harald Geyer Date: Sun, 17 Jan 2016 16:13:31 +0000 Subject: iio: dht11: Improve logging * Unify log messages * Add more DEBUG messages Apparently this driver is working unreliably on some platforms that I can't test. Therefore I want an easy way for bug reporters to provide useful information without making the driver too chatty by default. Signed-off-by: Harald Geyer Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c index 20b500d..9c47bc9 100644 --- a/drivers/iio/humidity/dht11.c +++ b/drivers/iio/humidity/dht11.c @@ -96,6 +96,24 @@ struct dht11 { struct {s64 ts; int value; } edges[DHT11_EDGES_PER_READ]; }; +#ifdef CONFIG_DYNAMIC_DEBUG +/* + * dht11_edges_print: show the data as actually received by the + * driver. + */ +static void dht11_edges_print(struct dht11 *dht11) +{ + int i; + + dev_dbg(dht11->dev, "%d edges detected:\n", dht11->num_edges); + for (i = 1; i < dht11->num_edges; ++i) { + dev_dbg(dht11->dev, "%d: %lld ns %s\n", i, + dht11->edges[i].ts - dht11->edges[i - 1].ts, + dht11->edges[i - 1].value ? "high" : "low"); + } +} +#endif /* CONFIG_DYNAMIC_DEBUG */ + static unsigned char dht11_decode_byte(char *bits) { unsigned char ret = 0; @@ -119,8 +137,12 @@ static int dht11_decode(struct dht11 *dht11, int offset) for (i = 0; i < DHT11_BITS_PER_READ; ++i) { t = dht11->edges[offset + 2 * i + 2].ts - dht11->edges[offset + 2 * i + 1].ts; - if (!dht11->edges[offset + 2 * i + 1].value) - return -EIO; /* lost synchronisation */ + if (!dht11->edges[offset + 2 * i + 1].value) { + dev_dbg(dht11->dev, + "lost synchronisation at edge %d\n", + offset + 2 * i + 1); + return -EIO; + } bits[i] = t > DHT11_THRESHOLD; } @@ -130,8 +152,10 @@ static int dht11_decode(struct dht11 *dht11, int offset) temp_dec = dht11_decode_byte(&bits[24]); checksum = dht11_decode_byte(&bits[32]); - if (((hum_int + hum_dec + temp_int + temp_dec) & 0xff) != checksum) + if (((hum_int + hum_dec + temp_int + temp_dec) & 0xff) != checksum) { + dev_dbg(dht11->dev, "invalid checksum\n"); return -EIO; + } dht11->timestamp = ktime_get_boot_ns(); if (hum_int < 20) { /* DHT22 */ @@ -182,6 +206,7 @@ static int dht11_read_raw(struct iio_dev *iio_dev, mutex_lock(&dht11->lock); if (dht11->timestamp + DHT11_DATA_VALID_TIME < ktime_get_boot_ns()) { timeres = ktime_get_resolution_ns(); + dev_dbg(dht11->dev, "current timeresolution: %dns\n", timeres); if (timeres > DHT11_MIN_TIMERES) { dev_err(dht11->dev, "timeresolution %dns too low\n", timeres); @@ -219,10 +244,13 @@ static int dht11_read_raw(struct iio_dev *iio_dev, free_irq(dht11->irq, iio_dev); +#ifdef CONFIG_DYNAMIC_DEBUG + dht11_edges_print(dht11); +#endif + if (ret == 0 && dht11->num_edges < DHT11_EDGES_PER_READ - 1) { - dev_err(&iio_dev->dev, - "Only %d signal edges detected\n", - dht11->num_edges); + dev_err(dht11->dev, "Only %d signal edges detected\n", + dht11->num_edges); ret = -ETIMEDOUT; } if (ret < 0) -- cgit v0.10.2 From da5ecb4dfd84fa4eaba782fc3fa0aa0f807a5804 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Fri, 1 Apr 2016 15:18:01 -0400 Subject: staging/lustre: Fix braces {} style This fixes all checkpatch form of this from the Lustre tree: CHECK: braces {} should be used on all arms of this statement Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/fld/fld_cache.c b/drivers/staging/lustre/lustre/fld/fld_cache.c index 062f388..5a04e99 100644 --- a/drivers/staging/lustre/lustre/fld/fld_cache.c +++ b/drivers/staging/lustre/lustre/fld/fld_cache.c @@ -178,8 +178,9 @@ restart_fixup: if (n_range->lsr_end <= c_range->lsr_end) { *n_range = *c_range; fld_cache_entry_delete(cache, f_curr); - } else + } else { n_range->lsr_start = c_range->lsr_end; + } } /* we could have overlap over next diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h index ae0c488..23cbdd3 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h @@ -1001,8 +1001,9 @@ static inline int lu_dirent_calc_size(int namelen, __u16 attr) size = (sizeof(struct lu_dirent) + namelen + align) & ~align; size += sizeof(struct luda_type); - } else + } else { size = sizeof(struct lu_dirent) + namelen; + } return (size + 7) & ~7; } diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h index 706869f..40f7a23 100644 --- a/drivers/staging/lustre/lustre/include/obd_class.h +++ b/drivers/staging/lustre/lustre/include/obd_class.h @@ -490,8 +490,9 @@ static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg) obd->obd_lu_dev = d; d->ld_obd = obd; rc = 0; - } else + } else { rc = PTR_ERR(d); + } } lu_context_exit(&session_ctx); lu_context_fini(&session_ctx); diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index d1f25ef..eb2e79e 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -1496,8 +1496,9 @@ free_lmv: cmd == LL_IOC_MDC_GETINFO)) { rc = 0; goto skip_lmm; - } else + } else { goto out_req; + } } if (cmd == IOC_MDC_GETFILESTRIPE || @@ -1710,15 +1711,16 @@ out_quotactl: return ll_flush_ctx(inode); #ifdef CONFIG_FS_POSIX_ACL case LL_IOC_RMTACL: { - if (sbi->ll_flags & LL_SBI_RMT_CLIENT && is_root_inode(inode)) { - struct ll_file_data *fd = LUSTRE_FPRIVATE(file); + if (sbi->ll_flags & LL_SBI_RMT_CLIENT && is_root_inode(inode)) { + struct ll_file_data *fd = LUSTRE_FPRIVATE(file); - rc = rct_add(&sbi->ll_rct, current_pid(), arg); - if (!rc) - fd->fd_flags |= LL_FILE_RMTACL; - return rc; - } else - return 0; + rc = rct_add(&sbi->ll_rct, current_pid(), arg); + if (!rc) + fd->fd_flags |= LL_FILE_RMTACL; + return rc; + } else { + return 0; + } } #endif case LL_IOC_GETOBDCOUNT: { diff --git a/drivers/staging/lustre/lustre/llite/llite_close.c b/drivers/staging/lustre/lustre/llite/llite_close.c index 8d23980..92b73ef 100644 --- a/drivers/staging/lustre/lustre/llite/llite_close.c +++ b/drivers/staging/lustre/lustre/llite/llite_close.c @@ -323,8 +323,9 @@ static struct ll_inode_info *ll_close_next_lli(struct ll_close_queue *lcq) lli = list_entry(lcq->lcq_head.next, struct ll_inode_info, lli_close_list); list_del_init(&lli->lli_close_list); - } else if (atomic_read(&lcq->lcq_stop)) + } else if (atomic_read(&lcq->lcq_stop)) { lli = ERR_PTR(-EALREADY); + } spin_unlock(&lcq->lcq_lock); return lli; diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 9655767..c04d377 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -1596,8 +1596,9 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md) " to the "DFID", inode %lu/%u(%p)\n", PFID(&lli->lli_fid), PFID(&body->fid1), inode->i_ino, inode->i_generation, inode); - } else + } else { lli->lli_fid = body->fid1; + } } LASSERT(fid_seq(&lli->lli_fid) != 0); @@ -2065,11 +2066,11 @@ int ll_obd_statfs(struct inode *inode, void __user *arg) } memcpy(&type, data->ioc_inlbuf1, sizeof(__u32)); - if (type & LL_STATFS_LMV) + if (type & LL_STATFS_LMV) { exp = sbi->ll_md_exp; - else if (type & LL_STATFS_LOV) + } else if (type & LL_STATFS_LOV) { exp = sbi->ll_dt_exp; - else { + } else { rc = -ENODEV; goto out_statfs; } diff --git a/drivers/staging/lustre/lustre/llite/lloop.c b/drivers/staging/lustre/lustre/llite/lloop.c index f169c0d..813a9a3 100644 --- a/drivers/staging/lustre/lustre/llite/lloop.c +++ b/drivers/staging/lustre/lustre/llite/lloop.c @@ -274,8 +274,9 @@ static void loop_add_bio(struct lloop_device *lo, struct bio *bio) if (lo->lo_biotail) { lo->lo_biotail->bi_next = bio; lo->lo_biotail = bio; - } else + } else { lo->lo_bio = lo->lo_biotail = bio; + } spin_unlock_irqrestore(&lo->lo_lock, flags); atomic_inc(&lo->lo_pending); diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c index f8f98e4..8561707 100644 --- a/drivers/staging/lustre/lustre/llite/namei.c +++ b/drivers/staging/lustre/lustre/llite/namei.c @@ -128,10 +128,12 @@ struct inode *ll_iget(struct super_block *sb, ino_t hash, if (rc != 0) { iget_failed(inode); inode = NULL; - } else + } else { unlock_new_inode(inode); - } else if (!(inode->i_state & (I_FREEING | I_CLEAR))) + } + } else if (!(inode->i_state & (I_FREEING | I_CLEAR))) { ll_update_inode(inode, md); + } CDEBUG(D_VFSTRACE, "got inode: %p for "DFID"\n", inode, PFID(&md->body->fid1)); } diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index e3cf640..fee319c 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -132,8 +132,9 @@ struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage) lcc->lcc_page = page; lu_ref_add(&page->cp_reference, "cl_io", io); result = 0; - } else + } else { result = PTR_ERR(page); + } } if (result) { ll_cl_fini(lcc); @@ -488,8 +489,9 @@ static int ll_read_ahead_pages(const struct lu_env *env, if (rc == 1) { (*reserved_pages)--; count++; - } else if (rc == -ENOLCK) + } else if (rc == -ENOLCK) { break; + } } else if (stride_ria) { /* If it is not in the read-ahead window, and it is * read-ahead mode, then check whether it should skip diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index 17dea41..cad6aa9 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -98,8 +98,9 @@ static void ll_invalidatepage(struct page *vmpage, unsigned int offset, cl_page_delete(env, page); cl_page_put(env, page); } - } else + } else { LASSERT(vmpage->private == 0); + } cl_env_put(env, &refcheck); } } diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 08d9b2b6..644a31f 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -342,8 +342,9 @@ int cl_sb_init(struct super_block *sb) sbi->ll_site = cl2lu_dev(cl)->ld_site; } cl_env_put(env, &refcheck); - } else + } else { rc = PTR_ERR(env); + } return rc; } @@ -588,16 +589,19 @@ static int vvp_pgcache_show(struct seq_file *f, void *v) if (page) { vvp_pgcache_page_show(env, f, page); cl_page_put(env, page); - } else + } else { seq_puts(f, "missing\n"); + } lu_object_ref_del(&clob->co_lu, "dump", current); cl_object_put(env, clob); - } else + } else { seq_printf(f, "%llx missing\n", pos); + } cl_env_put(env, &refcheck); result = 0; - } else + } else { result = PTR_ERR(env); + } return result; } diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 91ea6fd..26dfbf1 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -1178,8 +1178,9 @@ static int vvp_io_fault_start(const struct lu_env *env, if (result == -EDQUOT) result = -ENOSPC; goto out; - } else + } else { cl_page_disown(env, io, page); + } } } diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c index b68dcc9..be5cb21 100644 --- a/drivers/staging/lustre/lustre/llite/xattr.c +++ b/drivers/staging/lustre/lustre/llite/xattr.c @@ -181,8 +181,9 @@ int ll_setxattr_common(struct inode *inode, const char *name, size = rc; pv = (const char *)new_value; - } else + } else { return -EOPNOTSUPP; + } valid |= rce_ops2valid(rce->rce_ops); } diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c index f6252c7..a396777 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c +++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c @@ -1122,8 +1122,9 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, if (!rc) rc = err; } - } else + } else { set = 1; + } } if (!set && !rc) rc = -EIO; diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c index dccc634..dae8e89 100644 --- a/drivers/staging/lustre/lustre/lov/lov_dev.c +++ b/drivers/staging/lustre/lustre/lov/lov_dev.c @@ -262,8 +262,9 @@ static int lov_req_init(const struct lu_env *env, struct cl_device *dev, if (lr) { cl_req_slice_add(req, &lr->lr_cl, dev, &lov_req_ops); result = 0; - } else + } else { result = -ENOMEM; + } return result; } @@ -332,14 +333,15 @@ static struct lov_device_emerg **lov_emerg_alloc(int nr) cl_page_list_init(&em->emrg_page_list); em->emrg_env = cl_env_alloc(&em->emrg_refcheck, LCT_REMEMBER | LCT_NOREF); - if (!IS_ERR(em->emrg_env)) + if (!IS_ERR(em->emrg_env)) { em->emrg_env->le_ctx.lc_cookie = 0x2; - else { + } else { result = PTR_ERR(em->emrg_env); em->emrg_env = NULL; } - } else + } else { result = -ENOMEM; + } } if (result != 0) { lov_emerg_free(emerg, nr); diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c index 4151237..f443778 100644 --- a/drivers/staging/lustre/lustre/lov/lov_io.c +++ b/drivers/staging/lustre/lustre/lov/lov_io.c @@ -225,8 +225,9 @@ struct lov_io_sub *lov_sub_get(const struct lu_env *env, if (!sub->sub_io_initialized) { sub->sub_stripe = stripe; rc = lov_io_sub_init(env, lio, sub); - } else + } else { rc = 0; + } if (rc == 0) lov_sub_enter(sub); else @@ -294,8 +295,9 @@ static int lov_io_subio_init(const struct lu_env *env, struct lov_io *lio, lio->lis_single_subio_index = -1; lio->lis_active_subios = 0; result = 0; - } else + } else { result = -ENOMEM; + } return result; } @@ -413,8 +415,9 @@ static int lov_io_iter_init(const struct lu_env *env, lov_sub_put(sub); CDEBUG(D_VFSTRACE, "shrink: %d [%llu, %llu)\n", stripe, start, end); - } else + } else { rc = PTR_ERR(sub); + } if (!rc) list_add_tail(&sub->sub_linkage, &lio->lis_active); diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c index 6a353d1..561d493 100644 --- a/drivers/staging/lustre/lustre/lov/lov_object.c +++ b/drivers/staging/lustre/lustre/lov/lov_object.c @@ -283,8 +283,9 @@ static int lov_init_raid0(const struct lu_env *env, } if (result == 0) cl_object_header(&lov->lo_cl)->coh_page_bufsize += psz; - } else + } else { result = -ENOMEM; + } out: return result; } @@ -935,8 +936,9 @@ struct lu_object *lov_object_alloc(const struct lu_env *env, * for object with different layouts. */ obj->lo_ops = &lov_lu_obj_ops; - } else + } else { obj = NULL; + } return obj; } diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c index 3925633..9723d2e 100644 --- a/drivers/staging/lustre/lustre/lov/lov_pack.c +++ b/drivers/staging/lustre/lustre/lov/lov_pack.c @@ -457,9 +457,9 @@ int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm, } /* User wasn't expecting this many OST entries */ - if (lum.lmm_stripe_count == 0) + if (lum.lmm_stripe_count == 0) { lmm_size = lum_size; - else if (lum.lmm_stripe_count < lmmk->lmm_stripe_count) { + } else if (lum.lmm_stripe_count < lmmk->lmm_stripe_count) { rc = -EOVERFLOW; goto out_set; } diff --git a/drivers/staging/lustre/lustre/lov/lovsub_dev.c b/drivers/staging/lustre/lustre/lov/lovsub_dev.c index c335c02..35f6b1d 100644 --- a/drivers/staging/lustre/lustre/lov/lovsub_dev.c +++ b/drivers/staging/lustre/lustre/lov/lovsub_dev.c @@ -151,8 +151,9 @@ static int lovsub_req_init(const struct lu_env *env, struct cl_device *dev, if (lsr) { cl_req_slice_add(req, &lsr->lsrq_cl, dev, &lovsub_req_ops); result = 0; - } else + } else { result = -ENOMEM; + } return result; } @@ -182,10 +183,12 @@ static struct lu_device *lovsub_device_alloc(const struct lu_env *env, d = lovsub2lu_dev(lsd); d->ld_ops = &lovsub_lu_ops; lsd->acid_cl.cd_ops = &lovsub_cl_ops; - } else + } else { d = ERR_PTR(result); - } else + } + } else { d = ERR_PTR(-ENOMEM); + } return d; } diff --git a/drivers/staging/lustre/lustre/lov/lovsub_lock.c b/drivers/staging/lustre/lustre/lov/lovsub_lock.c index 670d203..e92edfb 100644 --- a/drivers/staging/lustre/lustre/lov/lovsub_lock.c +++ b/drivers/staging/lustre/lustre/lov/lovsub_lock.c @@ -77,8 +77,9 @@ int lovsub_lock_init(const struct lu_env *env, struct cl_object *obj, INIT_LIST_HEAD(&lsk->lss_parents); cl_lock_slice_add(lock, &lsk->lss_cl, obj, &lovsub_lock_ops); result = 0; - } else + } else { result = -ENOMEM; + } return result; } diff --git a/drivers/staging/lustre/lustre/lov/lovsub_object.c b/drivers/staging/lustre/lustre/lov/lovsub_object.c index 6c5430d..3f51f0d 100644 --- a/drivers/staging/lustre/lustre/lov/lovsub_object.c +++ b/drivers/staging/lustre/lustre/lov/lovsub_object.c @@ -67,8 +67,9 @@ int lovsub_object_init(const struct lu_env *env, struct lu_object *obj, lu_object_add(obj, below); cl_object_page_init(lu2cl(obj), sizeof(struct lovsub_page)); result = 0; - } else + } else { result = -ENOMEM; + } return result; } @@ -154,8 +155,9 @@ struct lu_object *lovsub_object_alloc(const struct lu_env *env, lu_object_add_top(&hdr->coh_lu, obj); los->lso_cl.co_ops = &lovsub_ops; obj->lo_ops = &lovsub_lu_obj_ops; - } else + } else { obj = NULL; + } return obj; } diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c index f4b3178..583fb5f 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_io.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c @@ -504,9 +504,9 @@ int cl_io_lock_add(const struct lu_env *env, struct cl_io *io, { int result; - if (cl_lockset_merge(&io->ci_lockset, &link->cill_descr)) + if (cl_lockset_merge(&io->ci_lockset, &link->cill_descr)) { result = 1; - else { + } else { list_add(&link->cill_linkage, &io->ci_lockset.cls_todo); result = 0; } @@ -536,8 +536,9 @@ int cl_io_lock_alloc_add(const struct lu_env *env, struct cl_io *io, result = cl_io_lock_add(env, io, link); if (result) /* lock match */ link->cill_fini(env, link); - } else + } else { result = -ENOMEM; + } return result; } @@ -1202,14 +1203,16 @@ struct cl_req *cl_req_alloc(const struct lu_env *env, struct cl_page *page, if (req->crq_o) { req->crq_nrobjs = nr_objects; result = cl_req_init(env, req, page); - } else + } else { result = -ENOMEM; + } if (result != 0) { cl_req_completion(env, req, result); req = ERR_PTR(result); } - } else + } else { req = ERR_PTR(-ENOMEM); + } return req; } EXPORT_SYMBOL(cl_req_alloc); diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c index 395b92c..a068e08 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c @@ -654,8 +654,9 @@ static struct lu_env *cl_env_new(__u32 ctx_tags, __u32 ses_tags, void *debug) lu_context_enter(&cle->ce_ses); env->le_ses = &cle->ce_ses; cl_env_init0(cle, debug); - } else + } else { lu_env_fini(env); + } } if (rc != 0) { kmem_cache_free(cl_env_kmem, cle); @@ -664,8 +665,9 @@ static struct lu_env *cl_env_new(__u32 ctx_tags, __u32 ses_tags, void *debug) CL_ENV_INC(create); CL_ENV_INC(total); } - } else + } else { env = ERR_PTR(-ENOMEM); + } return env; } @@ -1095,8 +1097,9 @@ struct cl_device *cl_type_setup(const struct lu_env *env, struct lu_site *site, CERROR("can't init device '%s', %d\n", typename, rc); d = ERR_PTR(rc); } - } else + } else { CERROR("Cannot allocate device: '%s'\n", typename); + } return lu2cl_dev(d); } EXPORT_SYMBOL(cl_type_setup); diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c index d93f42f..9824c88 100644 --- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c +++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c @@ -694,8 +694,9 @@ int lprocfs_rd_import(struct seq_file *m, void *data) do_div(sum, ret.lc_count); ret.lc_sum = sum; - } else + } else { ret.lc_sum = 0; + } seq_printf(m, " rpcs:\n" " inflight: %u\n" diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c index 3870df5..990e939 100644 --- a/drivers/staging/lustre/lustre/obdclass/lu_object.c +++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c @@ -716,8 +716,9 @@ struct lu_object *lu_object_find_slice(const struct lu_env *env, obj = lu_object_locate(top->lo_header, dev->ld_type); if (!obj) lu_object_put(env, top); - } else + } else { obj = top; + } return obj; } EXPORT_SYMBOL(lu_object_find_slice); diff --git a/drivers/staging/lustre/lustre/obdclass/lustre_peer.c b/drivers/staging/lustre/lustre/obdclass/lustre_peer.c index 5f81246..b1abe02 100644 --- a/drivers/staging/lustre/lustre/obdclass/lustre_peer.c +++ b/drivers/staging/lustre/lustre/obdclass/lustre_peer.c @@ -163,8 +163,9 @@ int class_del_uuid(const char *uuid) break; } } - } else + } else { list_splice_init(&g_uuid_list, &deathrow); + } spin_unlock(&g_uuid_lock); if (uuid && list_empty(&deathrow)) { diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c index 8940078..c1efcb3 100644 --- a/drivers/staging/lustre/lustre/osc/osc_io.c +++ b/drivers/staging/lustre/lustre/osc/osc_io.c @@ -842,8 +842,9 @@ int osc_req_init(const struct lu_env *env, struct cl_device *dev, if (or) { cl_req_slice_add(req, &or->or_cl, dev, &osc_req_ops); result = 0; - } else + } else { result = -ENOMEM; + } return result; } diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c index 49dfe9f..7ea6489 100644 --- a/drivers/staging/lustre/lustre/osc/osc_lock.c +++ b/drivers/staging/lustre/lustre/osc/osc_lock.c @@ -624,8 +624,9 @@ static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data) result = -ELDLM_NO_LOCK_DATA; } cl_env_nested_put(&nest, env); - } else + } else { result = PTR_ERR(env); + } req->rq_status = result; return result; } diff --git a/drivers/staging/lustre/lustre/osc/osc_object.c b/drivers/staging/lustre/lustre/osc/osc_object.c index a06bdf1..738ab10 100644 --- a/drivers/staging/lustre/lustre/osc/osc_object.c +++ b/drivers/staging/lustre/lustre/osc/osc_object.c @@ -292,8 +292,9 @@ struct lu_object *osc_object_alloc(const struct lu_env *env, lu_object_init(obj, NULL, dev); osc->oo_cl.co_ops = &osc_ops; obj->lo_ops = &osc_lu_obj_ops; - } else + } else { obj = NULL; + } return obj; } diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index a19badc..b55f467 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -421,8 +421,9 @@ static int osc_cache_too_much(struct client_obd *cli) return lru_shrink_max; else if (pages >= budget / 2) return lru_shrink_min; - } else if (pages >= budget * 2) + } else if (pages >= budget * 2) { return lru_shrink_min; + } return 0; } diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index a48d9d6..4d0f831 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -3065,8 +3065,9 @@ static int osc_import_event(struct obd_device *obd, ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY); cl_env_put(env, &refcheck); - } else + } else { rc = PTR_ERR(env); + } break; } case IMP_EVENT_ACTIVE: { diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c index 355f108..e02d95d1 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/client.c +++ b/drivers/staging/lustre/lustre/ptlrpc/client.c @@ -595,9 +595,9 @@ static int __ptlrpc_request_bufs_pack(struct ptlrpc_request *request, struct obd_import *imp = request->rq_import; int rc; - if (unlikely(ctx)) + if (unlikely(ctx)) { request->rq_cli_ctx = sptlrpc_cli_ctx_get(ctx); - else { + } else { rc = sptlrpc_req_get_ctx(request); if (rc) goto out_free; diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c index c95a91c..a35b56e 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c @@ -679,11 +679,11 @@ static ssize_t ptlrpc_lprocfs_nrs_seq_write(struct file *file, /** * The second token is either NULL, or an optional [reg|hp] string */ - if (strcmp(cmd, "reg") == 0) + if (strcmp(cmd, "reg") == 0) { queue = PTLRPC_NRS_QUEUE_REG; - else if (strcmp(cmd, "hp") == 0) + } else if (strcmp(cmd, "hp") == 0) { queue = PTLRPC_NRS_QUEUE_HP; - else { + } else { rc = -EINVAL; goto out; } @@ -693,8 +693,9 @@ default_queue: if (queue == PTLRPC_NRS_QUEUE_HP && !nrs_svc_has_hp(svc)) { rc = -ENODEV; goto out; - } else if (queue == PTLRPC_NRS_QUEUE_BOTH && !nrs_svc_has_hp(svc)) + } else if (queue == PTLRPC_NRS_QUEUE_BOTH && !nrs_svc_has_hp(svc)) { queue = PTLRPC_NRS_QUEUE_REG; + } /** * Serialize NRS core lprocfs operations with policy registration/ -- cgit v0.10.2 From 7f2d15bb587a8ed8e2ddebd7ffdfcc94b5113f93 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Fri, 1 Apr 2016 15:18:03 -0400 Subject: staging/lustre: Get rid of ldlm_policy_res_t typedef Directly use enum ldlm_policy_res everywhere. Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h index 351f8b4..ba643e6 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h @@ -218,8 +218,6 @@ enum ldlm_policy_res { LDLM_POLICY_SKIP_LOCK }; -typedef enum ldlm_policy_res ldlm_policy_res_t; - #define LDLM_POOL_SYSFS_PRINT_int(v) sprintf(buf, "%d\n", v) #define LDLM_POOL_SYSFS_SET_int(a, b) { a = b; } #define LDLM_POOL_SYSFS_PRINT_u64(v) sprintf(buf, "%lld\n", v) diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index 8ef28cc..880efdc 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -1131,12 +1131,11 @@ EXPORT_SYMBOL(ldlm_cli_cancel_list_local); * dirty data, to close a file, ...) or waiting for any RPCs in-flight (e.g. * readahead requests, ...) */ -static ldlm_policy_res_t ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns, - struct ldlm_lock *lock, - int unused, int added, - int count) +static enum ldlm_policy_res +ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns, struct ldlm_lock *lock, + int unused, int added, int count) { - ldlm_policy_res_t result = LDLM_POLICY_CANCEL_LOCK; + enum ldlm_policy_res result = LDLM_POLICY_CANCEL_LOCK; /* don't check added & count since we want to process all locks * from unused list. @@ -1168,10 +1167,10 @@ static ldlm_policy_res_t ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns, * * \retval LDLM_POLICY_CANCEL_LOCK cancel lock from LRU */ -static ldlm_policy_res_t ldlm_cancel_lrur_policy(struct ldlm_namespace *ns, - struct ldlm_lock *lock, - int unused, int added, - int count) +static enum ldlm_policy_res ldlm_cancel_lrur_policy(struct ldlm_namespace *ns, + struct ldlm_lock *lock, + int unused, int added, + int count) { unsigned long cur = cfs_time_current(); struct ldlm_pool *pl = &ns->ns_pool; @@ -1214,10 +1213,10 @@ static ldlm_policy_res_t ldlm_cancel_lrur_policy(struct ldlm_namespace *ns, * * \retval LDLM_POLICY_CANCEL_LOCK cancel lock from LRU */ -static ldlm_policy_res_t ldlm_cancel_passed_policy(struct ldlm_namespace *ns, - struct ldlm_lock *lock, - int unused, int added, - int count) +static enum ldlm_policy_res ldlm_cancel_passed_policy(struct ldlm_namespace *ns, + struct ldlm_lock *lock, + int unused, int added, + int count) { /* Stop LRU processing when we reach past @count or have checked all * locks in LRU. @@ -1235,10 +1234,10 @@ static ldlm_policy_res_t ldlm_cancel_passed_policy(struct ldlm_namespace *ns, * * \retval LDLM_POLICY_CANCEL_LOCK cancel lock from LRU */ -static ldlm_policy_res_t ldlm_cancel_aged_policy(struct ldlm_namespace *ns, - struct ldlm_lock *lock, - int unused, int added, - int count) +static enum ldlm_policy_res ldlm_cancel_aged_policy(struct ldlm_namespace *ns, + struct ldlm_lock *lock, + int unused, int added, + int count) { if ((added >= count) && time_before(cfs_time_current(), @@ -1251,13 +1250,13 @@ static ldlm_policy_res_t ldlm_cancel_aged_policy(struct ldlm_namespace *ns, return LDLM_POLICY_CANCEL_LOCK; } -static ldlm_policy_res_t +static enum ldlm_policy_res ldlm_cancel_lrur_no_wait_policy(struct ldlm_namespace *ns, struct ldlm_lock *lock, int unused, int added, int count) { - ldlm_policy_res_t result; + enum ldlm_policy_res result; result = ldlm_cancel_lrur_policy(ns, lock, unused, added, count); if (result == LDLM_POLICY_KEEP_LOCK) @@ -1275,10 +1274,9 @@ ldlm_cancel_lrur_no_wait_policy(struct ldlm_namespace *ns, * * \retval LDLM_POLICY_CANCEL_LOCK cancel lock from LRU */ -static ldlm_policy_res_t ldlm_cancel_default_policy(struct ldlm_namespace *ns, - struct ldlm_lock *lock, - int unused, int added, - int count) +static enum ldlm_policy_res +ldlm_cancel_default_policy(struct ldlm_namespace *ns, struct ldlm_lock *lock, + int unused, int added, int count) { /* Stop LRU processing when we reach past count or have checked all * locks in LRU. @@ -1287,7 +1285,8 @@ static ldlm_policy_res_t ldlm_cancel_default_policy(struct ldlm_namespace *ns, LDLM_POLICY_KEEP_LOCK : LDLM_POLICY_CANCEL_LOCK; } -typedef ldlm_policy_res_t (*ldlm_cancel_lru_policy_t)(struct ldlm_namespace *, +typedef enum ldlm_policy_res (*ldlm_cancel_lru_policy_t)( + struct ldlm_namespace *, struct ldlm_lock *, int, int, int); @@ -1368,7 +1367,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, LASSERT(pf); while (!list_empty(&ns->ns_unused_list)) { - ldlm_policy_res_t result; + enum ldlm_policy_res result; time_t last_use = 0; /* all unused locks */ -- cgit v0.10.2 From 0715f9417ad3581e721d4b2ca6d11aa9fb0e598d Mon Sep 17 00:00:00 2001 From: Sebastien Buisson Date: Mon, 4 Apr 2016 21:36:46 -0400 Subject: staging: lustre: ldlm: fix 'deadcode' errors Fix 'deadcode' issues found by Coverity version 6.5.1: Logically dead code (DEADCODE) Execution cannot reach this statement. Signed-off-by: Sebastien Buisson Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3097 Reviewed-on: http://review.whamcloud.com/7167 Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c index b88b786..3f97e1c 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c @@ -530,12 +530,6 @@ granted: return -EIO; } - if (rc) { - LDLM_DEBUG(lock, "client-side enqueue waking up: failed (%d)", - rc); - return rc; - } - LDLM_DEBUG(lock, "client-side enqueue granted"); lock_res_and_lock(lock); -- cgit v0.10.2 From d467220e61294a6e30716c3ea55641d7df8d0440 Mon Sep 17 00:00:00 2001 From: Niu Yawei Date: Mon, 4 Apr 2016 21:36:47 -0400 Subject: staging: lustre: llite: use 64bits flags in ll_lov_setea() In ll_lov_setea(), setting MDS_OPEN_HAS_OBJS to an int flags will result in the flags being overflowed. Signed-off-by: Niu Yawei Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3744 Reviewed-on: http://review.whamcloud.com/7312 Reviewed-by: Emoly Liu Reviewed-by: Jian Yu Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 69b56a8..02b5783 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -1363,7 +1363,8 @@ static int ll_lov_recreate_fid(struct inode *inode, unsigned long arg) } int ll_lov_setstripe_ea_info(struct inode *inode, struct dentry *dentry, - int flags, struct lov_user_md *lum, int lum_size) + __u64 flags, struct lov_user_md *lum, + int lum_size) { struct lov_stripe_md *lsm = NULL; struct lookup_intent oit = {.it_op = IT_OPEN, .it_flags = flags}; @@ -1487,7 +1488,7 @@ out: static int ll_lov_setea(struct inode *inode, struct file *file, unsigned long arg) { - int flags = MDS_OPEN_HAS_OBJS | FMODE_WRITE; + __u64 flags = MDS_OPEN_HAS_OBJS | FMODE_WRITE; struct lov_user_md *lump; int lum_size = sizeof(struct lov_user_md) + sizeof(struct lov_user_ost_data); @@ -1521,7 +1522,7 @@ static int ll_lov_setstripe(struct inode *inode, struct file *file, struct lov_user_md_v1 __user *lumv1p = (void __user *)arg; struct lov_user_md_v3 __user *lumv3p = (void __user *)arg; int lum_size, rc; - int flags = FMODE_WRITE; + __u64 flags = FMODE_WRITE; /* first try with v1 which is smaller than v3 */ lum_size = sizeof(struct lov_user_md_v1); diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 44ee7ce..2b8a85f 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -745,7 +745,7 @@ struct posix_acl *ll_get_acl(struct inode *inode, int type); int ll_inode_permission(struct inode *inode, int mask); int ll_lov_setstripe_ea_info(struct inode *inode, struct dentry *dentry, - int flags, struct lov_user_md *lum, + __u64 flags, struct lov_user_md *lum, int lum_size); int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename, struct lov_mds_md **lmm, int *lmm_size, diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c index be5cb21..37bc13e 100644 --- a/drivers/staging/lustre/lustre/llite/xattr.c +++ b/drivers/staging/lustre/lustre/llite/xattr.c @@ -244,12 +244,12 @@ int ll_setxattr(struct dentry *dentry, const char *name, lump->lmm_stripe_offset = -1; if (lump && S_ISREG(inode->i_mode)) { - int flags = FMODE_WRITE; + __u64 it_flags = FMODE_WRITE; int lum_size = (lump->lmm_magic == LOV_USER_MAGIC_V1) ? sizeof(*lump) : sizeof(struct lov_user_md_v3); - rc = ll_lov_setstripe_ea_info(inode, dentry, flags, lump, - lum_size); + rc = ll_lov_setstripe_ea_info(inode, dentry, it_flags, + lump, lum_size); /* b10667: rc always be 0 here for now */ rc = 0; } else if (S_ISDIR(inode->i_mode)) { -- cgit v0.10.2 From 66fbe4ef96790b55b4218b0281cc26157993552b Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Mon, 4 Apr 2016 21:36:48 -0400 Subject: staging: lustre: libcfs: remove userland comments in libcfs_debug.h Remove comments about userland use. Signed-off-by: Jinshan Xiong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647 Reviewed-on: http://review.whamcloud.com/7243 Reviewed-by: John L. Hammond Reviewed-by: jacques-Charles Lafoucriere Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h index 98430e7..7472a31 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h @@ -85,7 +85,6 @@ struct ptldebug_header { #define PH_FLAG_FIRST_RECORD 1 /* Debugging subsystems (32 bits, non-overlapping) */ -/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */ #define S_UNDEFINED 0x00000001 #define S_MDC 0x00000002 #define S_MDS 0x00000004 @@ -118,10 +117,8 @@ struct ptldebug_header { #define S_MGS 0x20000000 #define S_FID 0x40000000 /* b_new_cmd */ #define S_FLD 0x80000000 /* b_new_cmd */ -/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */ /* Debugging masks (32 bits, non-overlapping) */ -/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */ #define D_TRACE 0x00000001 /* ENTRY/EXIT markers */ #define D_INODE 0x00000002 #define D_SUPER 0x00000004 @@ -151,7 +148,6 @@ struct ptldebug_header { #define D_QUOTA 0x04000000 #define D_SEC 0x08000000 #define D_LFSCK 0x10000000 /* For both OI scrub and LFSCK */ -/* keep these in sync with lnet/{utils,libcfs}/debug.c */ #define D_HSM D_TRACE -- cgit v0.10.2 From 6f11cd978e59551de52e018c7bf8fc9d6ae6366c Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Mon, 4 Apr 2016 21:36:49 -0400 Subject: staging: lustre: libcfs: create array of debug names Instead of a using a growing case statement to handle more debugging options create a array to map debug flags to string names. Signed-off-by: Jinshan Xiong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647 Reviewed-on: http://review.whamcloud.com/7243 Reviewed-by: John L. Hammond Reviewed-by: jacques-Charles Lafoucriere Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h index 7472a31..5e60c6f 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h @@ -118,6 +118,12 @@ struct ptldebug_header { #define S_FID 0x40000000 /* b_new_cmd */ #define S_FLD 0x80000000 /* b_new_cmd */ +#define LIBCFS_DEBUG_SUBSYS_NAMES { \ + "undefined", "mdc", "mds", "osc", "ost", "class", "log", \ + "llite", "rpc", "mgmt", "lnet", "lnd", "pinger", "filter", "", \ + "echo", "ldlm", "lov", "lquota", "osd", "lfsck", "", "", "lmv", \ + "", "sec", "gss", "", "mgc", "mgs", "fid", "fld", NULL } + /* Debugging masks (32 bits, non-overlapping) */ #define D_TRACE 0x00000001 /* ENTRY/EXIT markers */ #define D_INODE 0x00000002 @@ -151,6 +157,13 @@ struct ptldebug_header { #define D_HSM D_TRACE +#define LIBCFS_DEBUG_MASKS_NAMES { \ + "trace", "inode", "super", "ext2", "malloc", "cache", "info", \ + "ioctl", "neterror", "net", "warning", "buffs", "other", \ + "dentry", "nettrace", "page", "dlmtrace", "error", "emerg", \ + "ha", "rpctrace", "vfstrace", "reada", "mmap", "config", \ + "console", "quota", "sec", "lfsck", "hsm", NULL } + #define D_CANTMASK (D_ERROR | D_EMERG | D_WARNING | D_CONSOLE) #ifndef DEBUG_SUBSYSTEM diff --git a/drivers/staging/lustre/lnet/libcfs/debug.c b/drivers/staging/lustre/lnet/libcfs/debug.c index c3d628b..8c260c3 100644 --- a/drivers/staging/lustre/lnet/libcfs/debug.c +++ b/drivers/staging/lustre/lnet/libcfs/debug.c @@ -232,130 +232,24 @@ int libcfs_panic_in_progress; static const char * libcfs_debug_subsys2str(int subsys) { - switch (1 << subsys) { - default: + static const char *libcfs_debug_subsystems[] = LIBCFS_DEBUG_SUBSYS_NAMES; + + if (subsys >= ARRAY_SIZE(libcfs_debug_subsystems)) return NULL; - case S_UNDEFINED: - return "undefined"; - case S_MDC: - return "mdc"; - case S_MDS: - return "mds"; - case S_OSC: - return "osc"; - case S_OST: - return "ost"; - case S_CLASS: - return "class"; - case S_LOG: - return "log"; - case S_LLITE: - return "llite"; - case S_RPC: - return "rpc"; - case S_LNET: - return "lnet"; - case S_LND: - return "lnd"; - case S_PINGER: - return "pinger"; - case S_FILTER: - return "filter"; - case S_ECHO: - return "echo"; - case S_LDLM: - return "ldlm"; - case S_LOV: - return "lov"; - case S_LQUOTA: - return "lquota"; - case S_OSD: - return "osd"; - case S_LFSCK: - return "lfsck"; - case S_LMV: - return "lmv"; - case S_SEC: - return "sec"; - case S_GSS: - return "gss"; - case S_MGC: - return "mgc"; - case S_MGS: - return "mgs"; - case S_FID: - return "fid"; - case S_FLD: - return "fld"; - } + + return libcfs_debug_subsystems[subsys]; } /* libcfs_debug_token2mask() expects the returned string in lower-case */ static const char * libcfs_debug_dbg2str(int debug) { - switch (1 << debug) { - default: + static const char *libcfs_debug_masks[] = LIBCFS_DEBUG_MASKS_NAMES; + + if (debug >= ARRAY_SIZE(libcfs_debug_masks)) return NULL; - case D_TRACE: - return "trace"; - case D_INODE: - return "inode"; - case D_SUPER: - return "super"; - case D_EXT2: - return "ext2"; - case D_MALLOC: - return "malloc"; - case D_CACHE: - return "cache"; - case D_INFO: - return "info"; - case D_IOCTL: - return "ioctl"; - case D_NETERROR: - return "neterror"; - case D_NET: - return "net"; - case D_WARNING: - return "warning"; - case D_BUFFS: - return "buffs"; - case D_OTHER: - return "other"; - case D_DENTRY: - return "dentry"; - case D_NETTRACE: - return "nettrace"; - case D_PAGE: - return "page"; - case D_DLMTRACE: - return "dlmtrace"; - case D_ERROR: - return "error"; - case D_EMERG: - return "emerg"; - case D_HA: - return "ha"; - case D_RPCTRACE: - return "rpctrace"; - case D_VFSTRACE: - return "vfstrace"; - case D_READA: - return "reada"; - case D_MMAP: - return "mmap"; - case D_CONFIG: - return "config"; - case D_CONSOLE: - return "console"; - case D_QUOTA: - return "quota"; - case D_SEC: - return "sec"; - case D_LFSCK: - return "lfsck"; - } + + return libcfs_debug_masks[debug]; } int -- cgit v0.10.2 From 83c61a5c54b712e0aea9dba556e661575daf3fcc Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Mon, 4 Apr 2016 21:36:50 -0400 Subject: staging: lustre: libcfs: make D_HSM a unique value Redefine D_HSM. It was defined to D_TRACE. Signed-off-by: Jinshan Xiong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647 Reviewed-on: http://review.whamcloud.com/7243 Reviewed-by: John L. Hammond Reviewed-by: jacques-Charles Lafoucriere Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h index 5e60c6f..455c54d 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h @@ -154,8 +154,7 @@ struct ptldebug_header { #define D_QUOTA 0x04000000 #define D_SEC 0x08000000 #define D_LFSCK 0x10000000 /* For both OI scrub and LFSCK */ - -#define D_HSM D_TRACE +#define D_HSM 0x20000000 #define LIBCFS_DEBUG_MASKS_NAMES { \ "trace", "inode", "super", "ext2", "malloc", "cache", "info", \ -- cgit v0.10.2 From ead028083510cd42abc9ae4d3847d53b54a19b15 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Mon, 4 Apr 2016 21:36:51 -0400 Subject: staging: lustre: hsm: Fix lu_ref for lease handle The lu_ref was not being decremented when releasing the lease handle. Signed-off-by: Jinshan Xiong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647 Reviewed-on: http://review.whamcloud.com/7243 Reviewed-by: John L. Hammond Reviewed-by: jacques-Charles Lafoucriere Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 02b5783..000ea58 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -908,7 +908,7 @@ static int ll_lease_close(struct obd_client_handle *och, struct inode *inode, lock_res_and_lock(lock); cancelled = ldlm_is_cancel(lock); unlock_res_and_lock(lock); - ldlm_lock_put(lock); + LDLM_LOCK_PUT(lock); } CDEBUG(D_INODE, "lease for " DFID " broken? %d\n", @@ -2509,7 +2509,7 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) rc = och->och_flags & (FMODE_READ | FMODE_WRITE); unlock_res_and_lock(lock); - ldlm_lock_put(lock); + LDLM_LOCK_PUT(lock); } } mutex_unlock(&lli->lli_och_mutex); diff --git a/drivers/staging/lustre/lustre/mdc/mdc_lib.c b/drivers/staging/lustre/lustre/mdc/mdc_lib.c index be0acf7..53cd56f 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_lib.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_lib.c @@ -454,7 +454,7 @@ static void mdc_hsm_release_pack(struct ptlrpc_request *req, lock = ldlm_handle2lock(&op_data->op_lease_handle); if (lock) { data->cd_handle = lock->l_remote_handle; - ldlm_lock_put(lock); + LDLM_LOCK_PUT(lock); } ldlm_cli_cancel(&op_data->op_lease_handle, LCF_LOCAL); -- cgit v0.10.2 From 18ecab0d95b0bb878cc7e22eb615cef21fcdd8eb Mon Sep 17 00:00:00 2001 From: JC Lafoucriere Date: Mon, 4 Apr 2016 21:36:52 -0400 Subject: staging: lustre: hsm: rename hai_zero() HSM function rename hai_zero() to hai_first(). Use a better name for hai helper Signed-off-by: JC Lafoucriere Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3709 Reviewed-on: http://review.whamcloud.com/7254 Reviewed-by: Jinshan Xiong Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h index 19f2271..4672145 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h @@ -1095,7 +1095,7 @@ struct hsm_action_list { __u32 padding1; char hal_fsname[0]; /* null-terminated */ /* struct hsm_action_item[hal_count] follows, aligned on 8-byte - * boundaries. See hai_zero + * boundaries. See hai_first */ } __packed; @@ -1109,7 +1109,7 @@ static inline int cfs_size_round(int val) #endif /* Return pointer to first hai in action list */ -static inline struct hsm_action_item *hai_zero(struct hsm_action_list *hal) +static inline struct hsm_action_item *hai_first(struct hsm_action_list *hal) { return (struct hsm_action_item *)(hal->hal_fsname + cfs_size_round(strlen(hal-> \ @@ -1131,7 +1131,7 @@ static inline int hal_size(struct hsm_action_list *hal) struct hsm_action_item *hai; sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname) + 1); - hai = hai_zero(hal); + hai = hai_first(hal); for (i = 0; i < hal->hal_count; i++, hai = hai_next(hai)) sz += cfs_size_round(hai->hai_len); diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c index c458f28..6023c2c 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_request.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c @@ -1952,7 +1952,7 @@ static void lustre_swab_hal(struct hsm_action_list *h) __swab32s(&h->hal_count); __swab32s(&h->hal_archive_id); __swab64s(&h->hal_flags); - hai = hai_zero(h); + hai = hai_first(h); for (i = 0; i < h->hal_count; i++, hai = hai_next(hai)) lustre_swab_hai(hai); } -- cgit v0.10.2 From c5300d55e2d5769ff4cffce3e667d991ed30eac8 Mon Sep 17 00:00:00 2001 From: Aurelien Degremont Date: Mon, 4 Apr 2016 21:36:53 -0400 Subject: staging: lustre: hsm: copy start error should set HP_FLAG_COMPLETED If an error occurs when initializing a HSM request, in ll_ioc_copy_start(), the PROGRESS message, sent to coordinator, should carry the error code but also HP_FLAG_COMPLETED to mark the request as finished (with error). If not, the Coordinator will ignore this message and consider the request is still running. Signed-off-by: Aurelien Degremont Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3685 Reviewed-on: http://review.whamcloud.com/7265 Reviewed-by: Jinshan Xiong Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index eb2e79e..955acd4 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -958,6 +958,9 @@ static int ll_ioc_copy_start(struct super_block *sb, struct hsm_copy *copy) } progress: + /* On error, the request should be considered as completed */ + if (hpk.hpk_errval > 0) + hpk.hpk_flags |= HP_FLAG_COMPLETED; rc = obd_iocontrol(LL_IOC_HSM_PROGRESS, sbi->ll_md_exp, sizeof(hpk), &hpk, NULL); -- cgit v0.10.2 From 98b29828b71b19963f3b818bdbc3e8b32ffaa761 Mon Sep 17 00:00:00 2001 From: Swapnil Pimpale Date: Mon, 4 Apr 2016 21:36:54 -0400 Subject: staging: lustre: lov: Get the correct address of lmm_objects The introduction of lmm_layout_gen makes the assumption that lmm_objects is present after lmm_stripe_count incorrect. Fixed this to get the correct address of lmm_objects when lmmk is cast to lov_mds_md_v1. Signed-off-by: Swapnil Pimpale Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3162 Reviewed-on: http://review.whamcloud.com/7258 Reviewed-by: John L. Hammond Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c index 9723d2e..d983a30 100644 --- a/drivers/staging/lustre/lustre/lov/lov_pack.c +++ b/drivers/staging/lustre/lustre/lov/lov_pack.c @@ -444,8 +444,7 @@ int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm, if (lum.lmm_magic == LOV_USER_MAGIC) { /* User request for v1, we need skip lmm_pool_name */ if (lmmk->lmm_magic == LOV_MAGIC_V3) { - memmove((char *)(&lmmk->lmm_stripe_count) + - sizeof(lmmk->lmm_stripe_count), + memmove(((struct lov_mds_md_v1 *)lmmk)->lmm_objects, ((struct lov_mds_md_v3 *)lmmk)->lmm_objects, lmmk->lmm_stripe_count * sizeof(struct lov_ost_data_v1)); -- cgit v0.10.2 From 46dfb5aa980272230ceee48613aba5bd79951f33 Mon Sep 17 00:00:00 2001 From: Gaurav Mahajan Date: Mon, 4 Apr 2016 21:36:56 -0400 Subject: staging: lustre: llite: Delaying creation of client side proc entries. In client_common_fill_super() proc entries are created before before cl_sb_init() and therefore lu_site is not allocated resulting in client crash when tried reading lu_site stats. Delaying creation of proc entries after creation of all required data structures fixed the problem. Signed-off-by: Gaurav Mahajan Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2941 Reviewed-on: http://review.whamcloud.com/6852 Reviewed-by: Andreas Dilger Reviewed-by: Emoly Liu Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index c04d377..b0948a7 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -166,12 +166,6 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt, return -ENOMEM; } - if (llite_root) { - err = ldebugfs_register_mountpoint(llite_root, sb, dt, md); - if (err < 0) - CERROR("could not register mount in /lustre/llite\n"); - } - /* indicate the features supported by this client */ data->ocd_connect_flags = OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH | OBD_CONNECT_ATTRFID | @@ -552,6 +546,15 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt, kfree(data); kfree(osfs); + if (llite_root) { + err = ldebugfs_register_mountpoint(llite_root, sb, dt, md); + if (err < 0) { + CERROR("%s: could not register mount in debugfs: " + "rc = %d\n", ll_get_fsname(sb, NULL, 0), err); + err = 0; + } + } + return err; out_root: iput(root); @@ -570,7 +573,6 @@ out_md: out: kfree(data); kfree(osfs); - ldebugfs_unregister_mountpoint(sbi); return err; } -- cgit v0.10.2 From 6a1938d95822f7a160100845035bdc19c5c72182 Mon Sep 17 00:00:00 2001 From: Ned Bass Date: Mon, 4 Apr 2016 21:36:57 -0400 Subject: staging: lustre: mdc: document mdc_rpc_lock As this lock can be a bottleneck, clarifying why it is needed may be helpful to those working on client performance. Signed-off-by: Ned Bass Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3443 Reviewed-on: http://review.whamcloud.com/6593 Reviewed-by: Andreas Dilger Reviewed-by: Keith Mannthey Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre_mdc.h b/drivers/staging/lustre/lustre/include/lustre_mdc.h index af77eb3..f267ff8 100644 --- a/drivers/staging/lustre/lustre/include/lustre_mdc.h +++ b/drivers/staging/lustre/lustre/include/lustre_mdc.h @@ -64,9 +64,27 @@ struct obd_export; struct ptlrpc_request; struct obd_device; +/** + * Serializes in-flight MDT-modifying RPC requests to preserve idempotency. + * + * This mutex is used to implement execute-once semantics on the MDT. + * The MDT stores the last transaction ID and result for every client in + * its last_rcvd file. If the client doesn't get a reply, it can safely + * resend the request and the MDT will reconstruct the reply being aware + * that the request has already been executed. Without this lock, + * execution status of concurrent in-flight requests would be + * overwritten. + * + * This design limits the extent to which we can keep a full pipeline of + * in-flight requests from a single client. This limitation could be + * overcome by allowing multiple slots per client in the last_rcvd file. + */ struct mdc_rpc_lock { + /** Lock protecting in-flight RPC concurrency. */ struct mutex rpcl_mutex; + /** Intent associated with currently executing request. */ struct lookup_intent *rpcl_it; + /** Used for MDS/RPC load testing purposes. */ int rpcl_fakes; }; -- cgit v0.10.2 From a7a9ed4b5d2732f35c54601702d73c1cd1e7ee90 Mon Sep 17 00:00:00 2001 From: JC Lafoucriere Date: Mon, 4 Apr 2016 21:36:58 -0400 Subject: staging: lustre: hsm: Add CLF_RENAME_LAST flag Create a special flag for the last rename event. Signed-off-by: JC Lafoucriere Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3718 Reviewed-on: http://review.whamcloud.com/7260 Reviewed-by: Jinshan Xiong Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h index 4672145..e4e42e1 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h @@ -676,7 +676,12 @@ static inline const char *changelog_type2str(int type) #define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */ /* HSM cleaning needed */ /* Flags for rename */ -#define CLF_RENAME_LAST 0x0001 /* rename unlink last hardlink of target */ +#define CLF_RENAME_LAST 0x0001 /* rename unlink last hardlink of + * target + */ +#define CLF_RENAME_LAST_EXISTS 0x0002 /* rename unlink last hardlink of target + * has an archive in backend + */ /* Flags for HSM */ /* 12b used (from high weight to low weight): -- cgit v0.10.2 From 0fcd869f9e0947ddb22ba8ba197cbe43e39f97f3 Mon Sep 17 00:00:00 2001 From: Sebastien Buisson Date: Mon, 4 Apr 2016 21:36:59 -0400 Subject: staging: lustre: fix 'NULL pointer dereference' errors Fix 'NULL pointer dereference' defects found by Coverity version 6.5.0: Dereference after null check (FORWARD_NULL) For instance, Passing null pointer to a function which dereferences it. Dereference before null check (REVERSE_INULL) Null-checking variable suggests that it may be null, but it has already been dereferenced on all paths leading to the check. Dereference null return value (NULL_RETURNS) Signed-off-by: Sebastien Buisson Signed-off-by: James Nunez Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3042 Reviewed-on: http://review.whamcloud.com/5868 Reviewed-by: Dmitry Eremin Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 955acd4..7736139 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -611,15 +611,16 @@ static int ll_readdir(struct file *filp, struct dir_context *ctx) struct inode *inode = file_inode(filp); struct ll_file_data *lfd = LUSTRE_FPRIVATE(filp); struct ll_sb_info *sbi = ll_i2sbi(inode); + __u64 pos = lfd ? lfd->lfd_pos : 0; int hash64 = sbi->ll_flags & LL_SBI_64BIT_HASH; int api32 = ll_need_32bit_api(sbi); int rc; CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p) pos %lu/%llu 32bit_api %d\n", inode->i_ino, inode->i_generation, - inode, (unsigned long)lfd->lfd_pos, i_size_read(inode), api32); + inode, (unsigned long)pos, i_size_read(inode), api32); - if (lfd->lfd_pos == MDS_DIR_END_OFF) { + if (pos == MDS_DIR_END_OFF) { /* * end-of-file. */ @@ -627,9 +628,10 @@ static int ll_readdir(struct file *filp, struct dir_context *ctx) goto out; } - ctx->pos = lfd->lfd_pos; + ctx->pos = pos; rc = ll_dir_read(inode, ctx); - lfd->lfd_pos = ctx->pos; + if (lfd) + lfd->lfd_pos = ctx->pos; if (ctx->pos == MDS_DIR_END_OFF) { if (api32) ctx->pos = LL_DIR_END_OFF_32BIT; diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c index f443778..da4784b 100644 --- a/drivers/staging/lustre/lustre/lov/lov_io.c +++ b/drivers/staging/lustre/lustre/lov/lov_io.c @@ -277,10 +277,11 @@ struct lov_io_sub *lov_page_subio(const struct lu_env *env, struct lov_io *lio, static int lov_io_subio_init(const struct lu_env *env, struct lov_io *lio, struct cl_io *io) { - struct lov_stripe_md *lsm = lio->lis_object->lo_lsm; + struct lov_stripe_md *lsm; int result; LASSERT(lio->lis_object); + lsm = lio->lis_object->lo_lsm; /* * Need to be optimized, we can't afford to allocate a piece of memory -- cgit v0.10.2 From e55a68b6ea623a501cfe5b74d63f5faa77281701 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Mon, 4 Apr 2016 21:37:00 -0400 Subject: staging: lustre: llite: cancel open lock before closing file In error handling path of ll_lease_open(), och has already been freed in ll_close_inode_openhandle() so the sequence of cancel open lock and close open handle need adjusting. Signed-off-by: Jinshan Xiong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647 Reviewed-on: http://review.whamcloud.com/7346 Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 000ea58..ac17360 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -875,16 +875,19 @@ ll_lease_open(struct inode *inode, struct file *file, fmode_t fmode, return och; out_close: - rc2 = ll_close_inode_openhandle(sbi->ll_md_exp, inode, och, NULL); - if (rc2) - CERROR("Close openhandle returned %d\n", rc2); - - /* cancel open lock */ + /* Cancel open lock */ if (it.d.lustre.it_lock_mode != 0) { ldlm_lock_decref_and_cancel(&och->och_lease_handle, it.d.lustre.it_lock_mode); it.d.lustre.it_lock_mode = 0; + och->och_lease_handle.cookie = 0ULL; } + rc2 = ll_close_inode_openhandle(sbi->ll_md_exp, inode, och, NULL); + if (rc2 < 0) + CERROR("%s: error closing file "DFID": %d\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(&ll_i2info(inode)->lli_fid), rc2); + och = NULL; /* och has been freed in ll_close_inode_openhandle() */ out_release_it: ll_intent_release(&it); out: -- cgit v0.10.2 From e179800665228cc8126ddc8b052a57d0155d09f1 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Mon, 4 Apr 2016 21:37:01 -0400 Subject: staging: lustre: hsm: Add support to drop all pages for ll_data_version This will be used by HSM release to get data version and drop all caching pages from all clients, before sending IT_RELEASE close REQ to MDT. Signed-off-by: Jinshan Xiong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3647 Reviewed-on: http://review.whamcloud.com/6794 Reviewed-by: John L. Hammond Reviewed-by: Aurelien Degremont Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h index 23cbdd3..c3565bf 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h @@ -1429,6 +1429,7 @@ enum obdo_flags { */ OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */ OBD_FL_NOSPC_BLK = 0x00100000, /* no more block space on OST */ + OBD_FL_FLUSH = 0x00200000, /* flush pages on the OST */ /* Note that while these checksum values are currently separate bits, * in 2.x we can actually allow all values from 1-31 if we wanted. diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h index e4e42e1..59ba48a 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_user.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_user.h @@ -838,9 +838,8 @@ struct ioc_data_version { __u64 idv_flags; /* See LL_DV_xxx */ }; -#define LL_DV_NOFLUSH 0x01 /* Do not take READ EXTENT LOCK before sampling - * version. Dirty caches are left unchanged. - */ +#define LL_DV_RD_FLUSH BIT(0) /* Flush dirty pages from clients */ +#define LL_DV_WR_FLUSH BIT(1) /* Flush all caching pages from clients */ #ifndef offsetof # define offsetof(typ, memb) ((unsigned long)((char *)&(((typ *)0)->memb))) diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 7736139..2f0873e 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -940,7 +940,7 @@ static int ll_ioc_copy_start(struct super_block *sb, struct hsm_copy *copy) } /* Read current file data version */ - rc = ll_data_version(inode, &data_version, 1); + rc = ll_data_version(inode, &data_version, LL_DV_RD_FLUSH); iput(inode); if (rc != 0) { CDEBUG(D_HSM, "Could not read file data version of " @@ -1024,8 +1024,7 @@ static int ll_ioc_copy_end(struct super_block *sb, struct hsm_copy *copy) goto progress; } - rc = ll_data_version(inode, &data_version, - copy->hc_hai.hai_action == HSMA_ARCHIVE); + rc = ll_data_version(inode, &data_version, LL_DV_RD_FLUSH); iput(inode); if (rc) { CDEBUG(D_HSM, "Could not read file data version. Request could not be confirmed.\n"); diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index ac17360..9b553d2 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -929,7 +929,7 @@ static int ll_lease_close(struct obd_client_handle *och, struct inode *inode, /* Fills the obdo with the attributes for the lsm */ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, - struct obdo *obdo, __u64 ioepoch, int sync) + struct obdo *obdo, __u64 ioepoch, int dv_flags) { struct ptlrpc_request_set *set; struct obd_info oinfo = { }; @@ -948,9 +948,11 @@ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, OBD_MD_FLMTIME | OBD_MD_FLCTIME | OBD_MD_FLGROUP | OBD_MD_FLEPOCH | OBD_MD_FLDATAVERSION; - if (sync) { + if (dv_flags & (LL_DV_WR_FLUSH | LL_DV_RD_FLUSH)) { oinfo.oi_oa->o_valid |= OBD_MD_FLFLAGS; oinfo.oi_oa->o_flags |= OBD_FL_SRVLOCK; + if (dv_flags & LL_DV_WR_FLUSH) + oinfo.oi_oa->o_flags |= OBD_FL_FLUSH; } set = ptlrpc_prep_set(); @@ -963,11 +965,16 @@ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, rc = ptlrpc_set_wait(set); ptlrpc_set_destroy(set); } - if (rc == 0) + if (rc == 0) { oinfo.oi_oa->o_valid &= (OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ | OBD_MD_FLATIME | OBD_MD_FLMTIME | OBD_MD_FLCTIME | OBD_MD_FLSIZE | - OBD_MD_FLDATAVERSION); + OBD_MD_FLDATAVERSION | OBD_MD_FLFLAGS); + if (dv_flags & LL_DV_WR_FLUSH && + !(oinfo.oi_oa->o_valid & OBD_MD_FLFLAGS && + oinfo.oi_oa->o_flags & OBD_FL_FLUSH)) + return -ENOTSUPP; + } return rc; } @@ -983,7 +990,7 @@ int ll_inode_getattr(struct inode *inode, struct obdo *obdo, lsm = ccc_inode_lsm_get(inode); rc = ll_lsm_getattr(lsm, ll_i2dtexp(inode), - obdo, ioepoch, sync); + obdo, ioepoch, sync ? LL_DV_RD_FLUSH : 0); if (rc == 0) { struct ost_id *oi = lsm ? &lsm->lsm_oi : &obdo->o_oi; @@ -1874,11 +1881,12 @@ error: * This value is computed using stripe object version on OST. * Version is computed using server side locking. * - * @param extent_lock Take extent lock. Not needed if a process is already - * holding the OST object group locks. + * @param sync if do sync on the OST side; + * 0: no sync + * LL_DV_RD_FLUSH: flush dirty pages, LCK_PR on OSTs + * LL_DV_WR_FLUSH: drop all caching pages, LCK_PW on OSTs */ -int ll_data_version(struct inode *inode, __u64 *data_version, - int extent_lock) +int ll_data_version(struct inode *inode, __u64 *data_version, int flags) { struct lov_stripe_md *lsm = NULL; struct ll_sb_info *sbi = ll_i2sbi(inode); @@ -1900,7 +1908,7 @@ int ll_data_version(struct inode *inode, __u64 *data_version, goto out; } - rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, obdo, 0, extent_lock); + rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, obdo, 0, flags); if (rc == 0) { if (!(obdo->o_valid & OBD_MD_FLDATAVERSION)) rc = -EOPNOTSUPP; @@ -1936,7 +1944,7 @@ int ll_hsm_release(struct inode *inode) } /* Grab latest data_version and [am]time values */ - rc = ll_data_version(inode, &data_version, 1); + rc = ll_data_version(inode, &data_version, LL_DV_WR_FLUSH); if (rc != 0) goto out; @@ -2344,9 +2352,8 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (copy_from_user(&idv, (char __user *)arg, sizeof(idv))) return -EFAULT; - rc = ll_data_version(inode, &idv.idv_version, - !(idv.idv_flags & LL_DV_NOFLUSH)); - + idv.idv_flags &= LL_DV_RD_FLUSH | LL_DV_WR_FLUSH; + rc = ll_data_version(inode, &idv.idv_version, idv.idv_flags); if (rc == 0 && copy_to_user((char __user *)arg, &idv, sizeof(idv))) return -EFAULT; diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 2b8a85f..2a11664 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -757,7 +757,7 @@ int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp, int ll_fsync(struct file *file, loff_t start, loff_t end, int data); int ll_merge_attr(const struct lu_env *env, struct inode *inode); int ll_fid2path(struct inode *inode, void __user *arg); -int ll_data_version(struct inode *inode, __u64 *data_version, int extent_lock); +int ll_data_version(struct inode *inode, __u64 *data_version, int flags); int ll_hsm_release(struct inode *inode); /* llite/dcache.c */ diff --git a/drivers/staging/lustre/lustre/lov/lov_merge.c b/drivers/staging/lustre/lustre/lov/lov_merge.c index 029cd4d..56ef41d 100644 --- a/drivers/staging/lustre/lustre/lov/lov_merge.c +++ b/drivers/staging/lustre/lustre/lov/lov_merge.c @@ -154,6 +154,7 @@ void lov_merge_attrs(struct obdo *tgt, struct obdo *src, u64 valid, valid &= src->o_valid; if (*set) { + tgt->o_valid &= valid; if (valid & OBD_MD_FLSIZE) { /* this handles sparse files properly */ u64 lov_size; @@ -172,12 +173,22 @@ void lov_merge_attrs(struct obdo *tgt, struct obdo *src, u64 valid, tgt->o_mtime = src->o_mtime; if (valid & OBD_MD_FLDATAVERSION) tgt->o_data_version += src->o_data_version; + + /* handle flags */ + if (valid & OBD_MD_FLFLAGS) + tgt->o_flags &= src->o_flags; + else + tgt->o_flags = 0; } else { memcpy(tgt, src, sizeof(*tgt)); tgt->o_oi = lsm->lsm_oi; + tgt->o_valid = valid; if (valid & OBD_MD_FLSIZE) tgt->o_size = lov_stripe_size(lsm, src->o_size, stripeno); + tgt->o_flags = 0; + if (valid & OBD_MD_FLFLAGS) + tgt->o_flags = src->o_flags; } /* data_version needs to be valid on all stripes to be correct! */ -- cgit v0.10.2 From 19c551482ad620336afb724bb6cfcf1720fa545c Mon Sep 17 00:00:00 2001 From: Sebastien Buisson Date: Mon, 4 Apr 2016 21:37:02 -0400 Subject: staging: lustre: fix 'no effect' errors Fix 'no effect' issues found by Coverity version 6.5.1: Unsigned compared against 0 (NO_EFFECT) This greater-than-or-equal-to-zero comparison of an unsigned value is always true. Remove useless cast. Signed-off-by: Sebastien Buisson Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3907 Reviewed-on: http://review.whamcloud.com/7166 Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c index 37bc13e..9f6fcfe 100644 --- a/drivers/staging/lustre/lustre/llite/xattr.c +++ b/drivers/staging/lustre/lustre/llite/xattr.c @@ -424,8 +424,7 @@ getxattr_nocache: if (rce && rce->rce_ops == RMT_LSETFACL) { ext_acl_xattr_header *acl; - acl = lustre_posix_acl_xattr_2ext( - (posix_acl_xattr_header *)buffer, rc); + acl = lustre_posix_acl_xattr_2ext(buffer, rc); if (IS_ERR(acl)) { rc = PTR_ERR(acl); goto out; diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c index a396777..2f6457f 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c +++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c @@ -926,7 +926,7 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, struct obd_quotactl *oqctl; if (qctl->qc_valid == QC_MDTIDX) { - if (qctl->qc_idx < 0 || count <= qctl->qc_idx) + if (count <= qctl->qc_idx) return -EINVAL; tgt = lmv->tgts[qctl->qc_idx]; -- cgit v0.10.2 From 0888f388e6ac44530473a5abc59ecb1efbc3fe23 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Tue, 5 Apr 2016 20:15:34 +0530 Subject: staging/lustre/obdclass: fix build warning While building with W=1 we were getting the warning: drivers/staging/lustre/lustre/obdclass/cl_object.c:1056:16: warning: old-style function definition struct lu_env *cl_env_percpu_get() ^ Signed-off-by: Sudip Mukherjee Acked-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c index a068e08..5940f30 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c @@ -1055,7 +1055,7 @@ void cl_env_percpu_put(struct lu_env *env) } EXPORT_SYMBOL(cl_env_percpu_put); -struct lu_env *cl_env_percpu_get() +struct lu_env *cl_env_percpu_get(void) { struct cl_env *cle; -- cgit v0.10.2 From c22594f6b13193c6f00c31eb8bee9ee05cae16da Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:27 -0400 Subject: staging: lustre: selftest: convert srpc_event_type to proper enum Turn tyepdef srpc_event_type to proper enum Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 4ffadf4..1cd5688 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -134,7 +134,7 @@ srpc_service2reply(int service) return srpc_service2request(service) + 1; } -typedef enum { +enum srpc_event_type { SRPC_BULK_REQ_RCVD = 1, /* passive bulk request(PUT sink/GET source) * received */ SRPC_BULK_PUT_SENT = 2, /* active bulk PUT sent (source) */ @@ -143,11 +143,11 @@ typedef enum { SRPC_REPLY_SENT = 5, /* outgoing reply sent */ SRPC_REQUEST_RCVD = 6, /* incoming request received */ SRPC_REQUEST_SENT = 7, /* outgoing request sent */ -} srpc_event_type_t; +}; /* RPC event */ typedef struct { - srpc_event_type_t ev_type; /* what's up */ + enum srpc_event_type ev_type; /* what's up */ lnet_event_kind_t ev_lnet; /* LNet event type */ int ev_fired; /* LNet event fired? */ int ev_status; /* LNet event status */ -- cgit v0.10.2 From 8607338f3d9efd7be18b844ac087590e391f653a Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:28 -0400 Subject: staging: lustre: selftest: convert srpc_event_t to proper struct Turn typedef srpc_event_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index dc10e01..8d7c0a0 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -357,7 +357,7 @@ srpc_remove_service(srpc_service_t *sv) static int srpc_post_passive_rdma(int portal, int local, __u64 matchbits, void *buf, int len, int options, lnet_process_id_t peer, - lnet_handle_md_t *mdh, srpc_event_t *ev) + lnet_handle_md_t *mdh, struct srpc_event *ev) { int rc; lnet_md_t md; @@ -396,7 +396,7 @@ srpc_post_passive_rdma(int portal, int local, __u64 matchbits, void *buf, static int srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len, int options, lnet_process_id_t peer, lnet_nid_t self, - lnet_handle_md_t *mdh, srpc_event_t *ev) + lnet_handle_md_t *mdh, struct srpc_event *ev) { int rc; lnet_md_t md; @@ -449,7 +449,7 @@ srpc_post_active_rdma(int portal, __u64 matchbits, void *buf, int len, static int srpc_post_passive_rqtbuf(int service, int local, void *buf, int len, - lnet_handle_md_t *mdh, srpc_event_t *ev) + lnet_handle_md_t *mdh, struct srpc_event *ev) { lnet_process_id_t any = { 0 }; @@ -794,7 +794,7 @@ srpc_shutdown_service(srpc_service_t *sv) static int srpc_send_request(srpc_client_rpc_t *rpc) { - srpc_event_t *ev = &rpc->crpc_reqstev; + struct srpc_event *ev = &rpc->crpc_reqstev; int rc; ev->ev_fired = 0; @@ -816,7 +816,7 @@ srpc_send_request(srpc_client_rpc_t *rpc) static int srpc_prepare_reply(srpc_client_rpc_t *rpc) { - srpc_event_t *ev = &rpc->crpc_replyev; + struct srpc_event *ev = &rpc->crpc_replyev; __u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.rpyid; int rc; @@ -841,7 +841,7 @@ static int srpc_prepare_bulk(srpc_client_rpc_t *rpc) { srpc_bulk_t *bk = &rpc->crpc_bulk; - srpc_event_t *ev = &rpc->crpc_bulkev; + struct srpc_event *ev = &rpc->crpc_bulkev; __u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.bulkid; int rc; int opt; @@ -873,7 +873,7 @@ srpc_prepare_bulk(srpc_client_rpc_t *rpc) static int srpc_do_bulk(struct srpc_server_rpc *rpc) { - srpc_event_t *ev = &rpc->srpc_ev; + struct srpc_event *ev = &rpc->srpc_ev; srpc_bulk_t *bk = rpc->srpc_bulk; __u64 id = rpc->srpc_reqstbuf->buf_msg.msg_body.reqst.bulkid; int rc; @@ -968,7 +968,7 @@ srpc_handle_rpc(swi_workitem_t *wi) struct srpc_server_rpc *rpc = wi->swi_workitem.wi_data; struct srpc_service_cd *scd = rpc->srpc_scd; struct srpc_service *sv = scd->scd_svc; - srpc_event_t *ev = &rpc->srpc_ev; + struct srpc_event *ev = &rpc->srpc_ev; int rc = 0; LASSERT(wi == &rpc->srpc_wi); @@ -1363,7 +1363,7 @@ srpc_post_rpc(srpc_client_rpc_t *rpc) int srpc_send_reply(struct srpc_server_rpc *rpc) { - srpc_event_t *ev = &rpc->srpc_ev; + struct srpc_event *ev = &rpc->srpc_ev; struct srpc_msg *msg = &rpc->srpc_replymsg; struct srpc_buffer *buffer = rpc->srpc_reqstbuf; struct srpc_service_cd *scd = rpc->srpc_scd; @@ -1410,7 +1410,7 @@ static void srpc_lnet_ev_handler(lnet_event_t *ev) { struct srpc_service_cd *scd; - srpc_event_t *rpcev = ev->md.user_ptr; + struct srpc_event *rpcev = ev->md.user_ptr; srpc_client_rpc_t *crpc; struct srpc_server_rpc *srpc; srpc_buffer_t *buffer; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 1cd5688..3411e33 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -146,13 +146,13 @@ enum srpc_event_type { }; /* RPC event */ -typedef struct { +struct srpc_event { enum srpc_event_type ev_type; /* what's up */ lnet_event_kind_t ev_lnet; /* LNet event type */ int ev_fired; /* LNet event fired? */ int ev_status; /* LNet event status */ void *ev_data; /* owning server/client RPC */ -} srpc_event_t; +}; typedef struct { int bk_len; /* len of bulk data */ @@ -187,7 +187,7 @@ struct srpc_server_rpc { struct list_head srpc_list; struct srpc_service_cd *srpc_scd; swi_workitem_t srpc_wi; - srpc_event_t srpc_ev; /* bulk/reply event */ + struct srpc_event srpc_ev; /* bulk/reply event */ lnet_nid_t srpc_self; lnet_process_id_t srpc_peer; srpc_msg_t srpc_replymsg; @@ -221,9 +221,9 @@ typedef struct srpc_client_rpc { unsigned int crpc_closed:1; /* completed */ /* RPC events */ - srpc_event_t crpc_bulkev; /* bulk event */ - srpc_event_t crpc_reqstev; /* request event */ - srpc_event_t crpc_replyev; /* reply event */ + struct srpc_event crpc_bulkev; /* bulk event */ + struct srpc_event crpc_reqstev; /* request event */ + struct srpc_event crpc_replyev; /* reply event */ /* bulk, request(reqst), and reply exchanged on wire */ srpc_msg_t crpc_reqstmsg; @@ -266,7 +266,7 @@ struct srpc_service_cd { /** backref to service */ struct srpc_service *scd_svc; /** event buffer */ - srpc_event_t scd_ev; + struct srpc_event scd_ev; /** free RPC descriptors */ struct list_head scd_rpc_free; /** in-flight RPCs */ -- cgit v0.10.2 From eb6e1342eea4576627f143da3163865978c72d1e Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:29 -0400 Subject: staging: lustre: selftest: convert srpc_bulk_t to proper struct Turn typedef srpc_bulk_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index 96af93f..5a161c9 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -51,7 +51,7 @@ MODULE_PARM_DESC(brw_inject_errors, "# data errors to inject randomly, zero by d static void brw_client_fini(sfw_test_instance_t *tsi) { - srpc_bulk_t *bulk; + struct srpc_bulk *bulk; sfw_test_unit_t *tsu; LASSERT(tsi->tsi_is_client); @@ -74,7 +74,7 @@ brw_client_init(sfw_test_instance_t *tsi) int npg; int len; int opc; - srpc_bulk_t *bulk; + struct srpc_bulk *bulk; sfw_test_unit_t *tsu; LASSERT(sn); @@ -224,7 +224,7 @@ bad_data: } static void -brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic) +brw_fill_bulk(struct srpc_bulk *bk, int pattern, __u64 magic) { int i; struct page *pg; @@ -236,7 +236,7 @@ brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic) } static int -brw_check_bulk(srpc_bulk_t *bk, int pattern, __u64 magic) +brw_check_bulk(struct srpc_bulk *bk, int pattern, __u64 magic) { int i; struct page *pg; @@ -257,7 +257,7 @@ static int brw_client_prep_rpc(sfw_test_unit_t *tsu, lnet_process_id_t dest, srpc_client_rpc_t **rpcpp) { - srpc_bulk_t *bulk = tsu->tsu_private; + struct srpc_bulk *bulk = tsu->tsu_private; sfw_test_instance_t *tsi = tsu->tsu_instance; sfw_session_t *sn = tsi->tsi_batch->bat_session; srpc_client_rpc_t *rpc; @@ -297,7 +297,7 @@ brw_client_prep_rpc(sfw_test_unit_t *tsu, if (rc) return rc; - memcpy(&rpc->crpc_bulk, bulk, offsetof(srpc_bulk_t, bk_iovs[npg])); + memcpy(&rpc->crpc_bulk, bulk, offsetof(struct srpc_bulk, bk_iovs[npg])); if (opc == LST_BRW_WRITE) brw_fill_bulk(&rpc->crpc_bulk, flags, BRW_MAGIC); else @@ -361,7 +361,7 @@ brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc) static void brw_server_rpc_done(struct srpc_server_rpc *rpc) { - srpc_bulk_t *blk = rpc->srpc_bulk; + struct srpc_bulk *blk = rpc->srpc_bulk; if (!blk) return; diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index 2be9451..e3574ff 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -150,7 +150,7 @@ lstcon_rpc_prep(lstcon_node_t *nd, int service, unsigned feats, void lstcon_rpc_put(lstcon_rpc_t *crpc) { - srpc_bulk_t *bulk = &crpc->crp_rpc->crpc_bulk; + struct srpc_bulk *bulk = &crpc->crp_rpc->crpc_bulk; int i; LASSERT(list_empty(&crpc->crp_link)); @@ -812,7 +812,7 @@ lstcon_testrpc_prep(lstcon_node_t *nd, int transop, unsigned feats, lstcon_group_t *sgrp = test->tes_src_grp; lstcon_group_t *dgrp = test->tes_dst_grp; srpc_test_reqst_t *trq; - srpc_bulk_t *bulk; + struct srpc_bulk *bulk; int i; int npg = 0; int nob = 0; diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index ce452b5..6472108 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -733,7 +733,7 @@ sfw_add_test_instance(sfw_batch_t *tsb, struct srpc_server_rpc *rpc) { srpc_msg_t *msg = &rpc->srpc_reqstbuf->buf_msg; srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; - srpc_bulk_t *bk = rpc->srpc_bulk; + struct srpc_bulk *bk = rpc->srpc_bulk; int ndest = req->tsr_ndest; sfw_test_unit_t *tsu; sfw_test_instance_t *tsi; diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index 8d7c0a0..633c4db 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -88,7 +88,7 @@ void srpc_set_counters(const srpc_counters_t *cnt) } static int -srpc_add_bulk_page(srpc_bulk_t *bk, struct page *pg, int i, int nob) +srpc_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i, int nob) { nob = min_t(int, nob, PAGE_SIZE); @@ -102,7 +102,7 @@ srpc_add_bulk_page(srpc_bulk_t *bk, struct page *pg, int i, int nob) } void -srpc_free_bulk(srpc_bulk_t *bk) +srpc_free_bulk(struct srpc_bulk *bk) { int i; struct page *pg; @@ -117,25 +117,25 @@ srpc_free_bulk(srpc_bulk_t *bk) __free_page(pg); } - LIBCFS_FREE(bk, offsetof(srpc_bulk_t, bk_iovs[bk->bk_niov])); + LIBCFS_FREE(bk, offsetof(struct srpc_bulk, bk_iovs[bk->bk_niov])); } -srpc_bulk_t * +struct srpc_bulk * srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len, int sink) { - srpc_bulk_t *bk; + struct srpc_bulk *bk; int i; LASSERT(bulk_npg > 0 && bulk_npg <= LNET_MAX_IOV); LIBCFS_CPT_ALLOC(bk, lnet_cpt_table(), cpt, - offsetof(srpc_bulk_t, bk_iovs[bulk_npg])); + offsetof(struct srpc_bulk, bk_iovs[bulk_npg])); if (!bk) { CERROR("Can't allocate descriptor for %d pages\n", bulk_npg); return NULL; } - memset(bk, 0, offsetof(srpc_bulk_t, bk_iovs[bulk_npg])); + memset(bk, 0, offsetof(struct srpc_bulk, bk_iovs[bulk_npg])); bk->bk_sink = sink; bk->bk_len = bulk_len; bk->bk_niov = bulk_npg; @@ -840,7 +840,7 @@ srpc_prepare_reply(srpc_client_rpc_t *rpc) static int srpc_prepare_bulk(srpc_client_rpc_t *rpc) { - srpc_bulk_t *bk = &rpc->crpc_bulk; + struct srpc_bulk *bk = &rpc->crpc_bulk; struct srpc_event *ev = &rpc->crpc_bulkev; __u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.bulkid; int rc; @@ -874,7 +874,7 @@ static int srpc_do_bulk(struct srpc_server_rpc *rpc) { struct srpc_event *ev = &rpc->srpc_ev; - srpc_bulk_t *bk = rpc->srpc_bulk; + struct srpc_bulk *bk = rpc->srpc_bulk; __u64 id = rpc->srpc_reqstbuf->buf_msg.msg_body.reqst.bulkid; int rc; int opt; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 3411e33..4f6af53 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -154,13 +154,14 @@ struct srpc_event { void *ev_data; /* owning server/client RPC */ }; -typedef struct { +/* bulk descriptor */ +struct srpc_bulk { int bk_len; /* len of bulk data */ lnet_handle_md_t bk_mdh; int bk_sink; /* sink/source */ int bk_niov; /* # iov in bk_iovs */ lnet_kiov_t bk_iovs[0]; -} srpc_bulk_t; /* bulk descriptor */ +}; /* message buffer descriptor */ typedef struct srpc_buffer { @@ -193,7 +194,7 @@ struct srpc_server_rpc { srpc_msg_t srpc_replymsg; lnet_handle_md_t srpc_replymdh; srpc_buffer_t *srpc_reqstbuf; - srpc_bulk_t *srpc_bulk; + struct srpc_bulk *srpc_bulk; unsigned int srpc_aborted; /* being given up */ int srpc_status; @@ -230,7 +231,7 @@ typedef struct srpc_client_rpc { srpc_msg_t crpc_replymsg; lnet_handle_md_t crpc_reqstmdh; lnet_handle_md_t crpc_replymdh; - srpc_bulk_t crpc_bulk; + struct srpc_bulk crpc_bulk; } srpc_client_rpc_t; #define srpc_client_rpc_size(rpc) \ @@ -424,7 +425,7 @@ void sfw_post_rpc(srpc_client_rpc_t *rpc); void sfw_client_rpc_done(srpc_client_rpc_t *rpc); void sfw_unpack_message(srpc_msg_t *msg); void sfw_free_pages(struct srpc_server_rpc *rpc); -void sfw_add_bulk_page(srpc_bulk_t *bk, struct page *pg, int i); +void sfw_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i); int sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len, int sink); int sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply); @@ -436,9 +437,9 @@ srpc_create_client_rpc(lnet_process_id_t peer, int service, void (*rpc_fini)(srpc_client_rpc_t *), void *priv); void srpc_post_rpc(srpc_client_rpc_t *rpc); void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why); -void srpc_free_bulk(srpc_bulk_t *bk); -srpc_bulk_t *srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len, - int sink); +void srpc_free_bulk(struct srpc_bulk *bk); +struct srpc_bulk *srpc_alloc_bulk(int cpt, unsigned bulk_npg, + unsigned bulk_len, int sink); int srpc_send_rpc(swi_workitem_t *wi); int srpc_send_reply(struct srpc_server_rpc *rpc); int srpc_add_service(srpc_service_t *sv); -- cgit v0.10.2 From 4b064e95282483f5cebc12a2f242212e42192c48 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:30 -0400 Subject: staging: lustre: selftest: convert srpc_buffer_t to proper struct Turn typedef srpc_buffer_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index 633c4db..5dcb892 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -697,7 +697,7 @@ srpc_finish_service(struct srpc_service *sv) /* called with sv->sv_lock held */ static void -srpc_service_recycle_buffer(struct srpc_service_cd *scd, srpc_buffer_t *buf) +srpc_service_recycle_buffer(struct srpc_service_cd *scd, struct srpc_buffer *buf) __must_hold(&scd->scd_lock) { if (!scd->scd_svc->sv_shuttingdown && scd->scd_buf_adjust >= 0) { @@ -759,7 +759,7 @@ srpc_shutdown_service(srpc_service_t *sv) { struct srpc_service_cd *scd; struct srpc_server_rpc *rpc; - srpc_buffer_t *buf; + struct srpc_buffer *buf; int i; CDEBUG(D_NET, "Shutting down service: id %d, name %s\n", @@ -903,7 +903,7 @@ srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status) { struct srpc_service_cd *scd = rpc->srpc_scd; struct srpc_service *sv = scd->scd_svc; - srpc_buffer_t *buffer; + struct srpc_buffer *buffer; LASSERT(status || rpc->srpc_wi.swi_state == SWI_STATE_DONE); @@ -948,7 +948,7 @@ srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status) if (!sv->sv_shuttingdown && !list_empty(&scd->scd_buf_blocked)) { buffer = list_entry(scd->scd_buf_blocked.next, - srpc_buffer_t, buf_list); + struct srpc_buffer, buf_list); list_del(&buffer->buf_list); srpc_init_server_rpc(rpc, scd, buffer); @@ -1413,7 +1413,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev) struct srpc_event *rpcev = ev->md.user_ptr; srpc_client_rpc_t *crpc; struct srpc_server_rpc *srpc; - srpc_buffer_t *buffer; + struct srpc_buffer *buffer; srpc_service_t *sv; srpc_msg_t *msg; srpc_msg_type_t type; @@ -1486,7 +1486,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev) LASSERT(ev->type != LNET_EVENT_UNLINK || sv->sv_shuttingdown); - buffer = container_of(ev->md.start, srpc_buffer_t, buf_msg); + buffer = container_of(ev->md.start, struct srpc_buffer, buf_msg); buffer->buf_peer = ev->initiator; buffer->buf_self = ev->target.nid; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 4f6af53..0982315 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -164,13 +164,13 @@ struct srpc_bulk { }; /* message buffer descriptor */ -typedef struct srpc_buffer { +struct srpc_buffer { struct list_head buf_list; /* chain on srpc_service::*_msgq */ srpc_msg_t buf_msg; lnet_handle_md_t buf_mdh; lnet_nid_t buf_self; lnet_process_id_t buf_peer; -} srpc_buffer_t; +}; struct swi_workitem; typedef int (*swi_action_t) (struct swi_workitem *); @@ -193,7 +193,7 @@ struct srpc_server_rpc { lnet_process_id_t srpc_peer; srpc_msg_t srpc_replymsg; lnet_handle_md_t srpc_replymdh; - srpc_buffer_t *srpc_reqstbuf; + struct srpc_buffer *srpc_reqstbuf; struct srpc_bulk *srpc_bulk; unsigned int srpc_aborted; /* being given up */ -- cgit v0.10.2 From 25a9ca5202e6f8d1e5c9eafc239788d9ebffb02c Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:31 -0400 Subject: staging: lustre: selftest: convert swi_workitem_t to proper struct Turn typedef swi_workitem_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index 6472108..c8f8a8d 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -942,7 +942,7 @@ sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer, } static int -sfw_run_test(swi_workitem_t *wi) +sfw_run_test(struct swi_workitem *wi) { sfw_test_unit_t *tsu = wi->swi_workitem.wi_data; sfw_test_instance_t *tsi = tsu->tsu_instance; @@ -993,7 +993,7 @@ test_done: static int sfw_run_batch(sfw_batch_t *tsb) { - swi_workitem_t *wi; + struct swi_workitem *wi; sfw_test_unit_t *tsu; sfw_test_instance_t *tsi; diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index 5dcb892..72a38e4 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -71,7 +71,7 @@ srpc_serv_portal(int svc_id) } /* forward ref's */ -int srpc_handle_rpc(swi_workitem_t *wi); +int srpc_handle_rpc(struct swi_workitem *wi); void srpc_get_counters(srpc_counters_t *cnt) { @@ -963,7 +963,7 @@ srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status) /* handles an incoming RPC */ int -srpc_handle_rpc(swi_workitem_t *wi) +srpc_handle_rpc(struct swi_workitem *wi) { struct srpc_server_rpc *rpc = wi->swi_workitem.wi_data; struct srpc_service_cd *scd = rpc->srpc_scd; @@ -1140,7 +1140,7 @@ srpc_del_client_rpc_timer(srpc_client_rpc_t *rpc) static void srpc_client_rpc_done(srpc_client_rpc_t *rpc, int status) { - swi_workitem_t *wi = &rpc->crpc_wi; + struct swi_workitem *wi = &rpc->crpc_wi; LASSERT(status || wi->swi_state == SWI_STATE_DONE); @@ -1175,7 +1175,7 @@ srpc_client_rpc_done(srpc_client_rpc_t *rpc, int status) /* sends an outgoing RPC */ int -srpc_send_rpc(swi_workitem_t *wi) +srpc_send_rpc(struct swi_workitem *wi) { int rc = 0; srpc_client_rpc_t *rpc; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 0982315..fcbaf5e 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -175,19 +175,19 @@ struct srpc_buffer { struct swi_workitem; typedef int (*swi_action_t) (struct swi_workitem *); -typedef struct swi_workitem { +struct swi_workitem { struct cfs_wi_sched *swi_sched; struct cfs_workitem swi_workitem; swi_action_t swi_action; int swi_state; -} swi_workitem_t; +}; /* server-side state of a RPC */ struct srpc_server_rpc { /* chain on srpc_service::*_rpcq */ struct list_head srpc_list; struct srpc_service_cd *srpc_scd; - swi_workitem_t srpc_wi; + struct swi_workitem srpc_wi; struct srpc_event srpc_ev; /* bulk/reply event */ lnet_nid_t srpc_self; lnet_process_id_t srpc_peer; @@ -209,7 +209,7 @@ typedef struct srpc_client_rpc { atomic_t crpc_refcount; int crpc_timeout; /* # seconds to wait for reply */ struct stt_timer crpc_timer; - swi_workitem_t crpc_wi; + struct swi_workitem crpc_wi; lnet_process_id_t crpc_dest; void (*crpc_done)(struct srpc_client_rpc *); @@ -273,7 +273,7 @@ struct srpc_service_cd { /** in-flight RPCs */ struct list_head scd_rpc_active; /** workitem for posting buffer */ - swi_workitem_t scd_buf_wi; + struct swi_workitem scd_buf_wi; /** CPT id */ int scd_cpt; /** error code for scd_buf_wi */ @@ -404,7 +404,7 @@ typedef struct sfw_test_unit { int tsu_loop; /* loop count of the test */ sfw_test_instance_t *tsu_instance; /* pointer to test instance */ void *tsu_private; /* private data */ - swi_workitem_t tsu_worker; /* workitem of the test unit */ + struct swi_workitem tsu_worker; /* workitem of the test unit */ } sfw_test_unit_t; typedef struct sfw_test_case { @@ -440,7 +440,7 @@ void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why); void srpc_free_bulk(struct srpc_bulk *bk); struct srpc_bulk *srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len, int sink); -int srpc_send_rpc(swi_workitem_t *wi); +int srpc_send_rpc(struct swi_workitem *wi); int srpc_send_reply(struct srpc_server_rpc *rpc); int srpc_add_service(srpc_service_t *sv); int srpc_remove_service(srpc_service_t *sv); @@ -464,13 +464,15 @@ srpc_serv_is_framework(struct srpc_service *svc) static inline int swi_wi_action(struct cfs_workitem *wi) { - swi_workitem_t *swi = container_of(wi, swi_workitem_t, swi_workitem); + struct swi_workitem *swi; + + swi = container_of(wi, struct swi_workitem, swi_workitem); return swi->swi_action(swi); } static inline void -swi_init_workitem(swi_workitem_t *swi, void *data, +swi_init_workitem(struct swi_workitem *swi, void *data, swi_action_t action, struct cfs_wi_sched *sched) { swi->swi_sched = sched; @@ -480,19 +482,19 @@ swi_init_workitem(swi_workitem_t *swi, void *data, } static inline void -swi_schedule_workitem(swi_workitem_t *wi) +swi_schedule_workitem(struct swi_workitem *wi) { cfs_wi_schedule(wi->swi_sched, &wi->swi_workitem); } static inline void -swi_exit_workitem(swi_workitem_t *swi) +swi_exit_workitem(struct swi_workitem *swi) { cfs_wi_exit(swi->swi_sched, &swi->swi_workitem); } static inline int -swi_deschedule_workitem(swi_workitem_t *swi) +swi_deschedule_workitem(struct swi_workitem *swi) { return cfs_wi_deschedule(swi->swi_sched, &swi->swi_workitem); } -- cgit v0.10.2 From 20234da54283d138d2aceba0c4e295d8a8eaae46 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:32 -0400 Subject: staging: lustre: selftest: convert srpc_client_rpc_t to proper struct Turn typedef srpc_client_rpc_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index 5a161c9..6657a58 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -255,12 +255,12 @@ brw_check_bulk(struct srpc_bulk *bk, int pattern, __u64 magic) static int brw_client_prep_rpc(sfw_test_unit_t *tsu, - lnet_process_id_t dest, srpc_client_rpc_t **rpcpp) + lnet_process_id_t dest, struct srpc_client_rpc **rpcpp) { struct srpc_bulk *bulk = tsu->tsu_private; sfw_test_instance_t *tsi = tsu->tsu_instance; sfw_session_t *sn = tsi->tsi_batch->bat_session; - srpc_client_rpc_t *rpc; + struct srpc_client_rpc *rpc; srpc_brw_reqst_t *req; int flags; int npg; @@ -313,7 +313,7 @@ brw_client_prep_rpc(sfw_test_unit_t *tsu, } static void -brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc) +brw_client_done_rpc(sfw_test_unit_t *tsu, struct srpc_client_rpc *rpc) { __u64 magic = BRW_MAGIC; sfw_test_instance_t *tsi = tsu->tsu_instance; diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index e3574ff..2affbee 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -50,7 +50,7 @@ void lstcon_rpc_stat_reply(lstcon_rpc_trans_t *, srpc_msg_t *, lstcon_node_t *, lstcon_trans_stat_t *); static void -lstcon_rpc_done(srpc_client_rpc_t *rpc) +lstcon_rpc_done(struct srpc_client_rpc *rpc) { lstcon_rpc_t *crpc = (lstcon_rpc_t *)rpc->crpc_priv; @@ -287,7 +287,7 @@ lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, lstcon_rpc_t *crpc) void lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error) { - srpc_client_rpc_t *rpc; + struct srpc_client_rpc *rpc; lstcon_rpc_t *crpc; lstcon_node_t *nd; @@ -389,7 +389,7 @@ static int lstcon_rpc_get_reply(lstcon_rpc_t *crpc, srpc_msg_t **msgpp) { lstcon_node_t *nd = crpc->crp_node; - srpc_client_rpc_t *rpc = crpc->crp_rpc; + struct srpc_client_rpc *rpc = crpc->crp_rpc; srpc_generic_reply_t *rep; LASSERT(nd && rpc); @@ -541,7 +541,7 @@ lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans, void lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans) { - srpc_client_rpc_t *rpc; + struct srpc_client_rpc *rpc; lstcon_rpc_t *crpc; lstcon_rpc_t *tmp; int count = 0; diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.h b/drivers/staging/lustre/lnet/selftest/conrpc.h index 3e7839d..6ddf088 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.h +++ b/drivers/staging/lustre/lnet/selftest/conrpc.h @@ -65,7 +65,7 @@ struct lstcon_node; typedef struct lstcon_rpc { struct list_head crp_link; /* chain on rpc transaction */ - srpc_client_rpc_t *crp_rpc; /* client rpc */ + struct srpc_client_rpc *crp_rpc; /* client rpc */ struct lstcon_node *crp_node; /* destination node */ struct lstcon_rpc_trans *crp_trans; /* conrpc transaction */ diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index c8f8a8d..931a517 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -298,7 +298,7 @@ sfw_server_rpc_done(struct srpc_server_rpc *rpc) } static void -sfw_client_rpc_fini(srpc_client_rpc_t *rpc) +sfw_client_rpc_fini(struct srpc_client_rpc *rpc) { LASSERT(!rpc->crpc_bulk.bk_niov); LASSERT(list_empty(&rpc->crpc_list)); @@ -526,7 +526,7 @@ sfw_debug_session(srpc_debug_reqst_t *request, srpc_debug_reply_t *reply) } static void -sfw_test_rpc_fini(srpc_client_rpc_t *rpc) +sfw_test_rpc_fini(struct srpc_client_rpc *rpc) { sfw_test_unit_t *tsu = rpc->crpc_priv; sfw_test_instance_t *tsi = tsu->tsu_instance; @@ -616,7 +616,7 @@ sfw_unload_test(struct sfw_test_instance *tsi) static void sfw_destroy_test_instance(sfw_test_instance_t *tsi) { - srpc_client_rpc_t *rpc; + struct srpc_client_rpc *rpc; sfw_test_unit_t *tsu; if (!tsi->tsi_is_client) @@ -637,7 +637,7 @@ sfw_destroy_test_instance(sfw_test_instance_t *tsi) while (!list_empty(&tsi->tsi_free_rpcs)) { rpc = list_entry(tsi->tsi_free_rpcs.next, - srpc_client_rpc_t, crpc_list); + struct srpc_client_rpc, crpc_list); list_del(&rpc->crpc_list); LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc)); } @@ -866,7 +866,7 @@ sfw_test_unit_done(sfw_test_unit_t *tsu) } static void -sfw_test_rpc_done(srpc_client_rpc_t *rpc) +sfw_test_rpc_done(struct srpc_client_rpc *rpc) { sfw_test_unit_t *tsu = rpc->crpc_priv; sfw_test_instance_t *tsi = tsu->tsu_instance; @@ -902,9 +902,9 @@ sfw_test_rpc_done(srpc_client_rpc_t *rpc) int sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer, unsigned features, int nblk, int blklen, - srpc_client_rpc_t **rpcpp) + struct srpc_client_rpc **rpcpp) { - srpc_client_rpc_t *rpc = NULL; + struct srpc_client_rpc *rpc = NULL; sfw_test_instance_t *tsi = tsu->tsu_instance; spin_lock(&tsi->tsi_lock); @@ -912,7 +912,7 @@ sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer, LASSERT(sfw_test_active(tsi)); /* pick request from buffer */ rpc = list_first_entry_or_null(&tsi->tsi_free_rpcs, - srpc_client_rpc_t, crpc_list); + struct srpc_client_rpc, crpc_list); if (rpc) { LASSERT(nblk == rpc->crpc_bulk.bk_niov); list_del_init(&rpc->crpc_list); @@ -946,7 +946,7 @@ sfw_run_test(struct swi_workitem *wi) { sfw_test_unit_t *tsu = wi->swi_workitem.wi_data; sfw_test_instance_t *tsi = tsu->tsu_instance; - srpc_client_rpc_t *rpc = NULL; + struct srpc_client_rpc *rpc = NULL; LASSERT(wi == &tsu->tsu_worker); @@ -1029,7 +1029,7 @@ int sfw_stop_batch(sfw_batch_t *tsb, int force) { sfw_test_instance_t *tsi; - srpc_client_rpc_t *rpc; + struct srpc_client_rpc *rpc; if (!sfw_batch_active(tsb)) { CDEBUG(D_NET, "Batch %llu inactive\n", tsb->bat_id.bat_id); @@ -1377,12 +1377,12 @@ sfw_bulk_ready(struct srpc_server_rpc *rpc, int status) return rc; } -srpc_client_rpc_t * +struct srpc_client_rpc * sfw_create_rpc(lnet_process_id_t peer, int service, unsigned features, int nbulkiov, int bulklen, - void (*done)(srpc_client_rpc_t *), void *priv) + void (*done)(struct srpc_client_rpc *), void *priv) { - srpc_client_rpc_t *rpc = NULL; + struct srpc_client_rpc *rpc = NULL; spin_lock(&sfw_data.fw_lock); @@ -1391,7 +1391,7 @@ sfw_create_rpc(lnet_process_id_t peer, int service, if (!nbulkiov && !list_empty(&sfw_data.fw_zombie_rpcs)) { rpc = list_entry(sfw_data.fw_zombie_rpcs.next, - srpc_client_rpc_t, crpc_list); + struct srpc_client_rpc, crpc_list); list_del(&rpc->crpc_list); srpc_init_client_rpc(rpc, peer, service, 0, 0, @@ -1558,7 +1558,7 @@ sfw_unpack_message(srpc_msg_t *msg) } void -sfw_abort_rpc(srpc_client_rpc_t *rpc) +sfw_abort_rpc(struct srpc_client_rpc *rpc) { LASSERT(atomic_read(&rpc->crpc_refcount) > 0); LASSERT(rpc->crpc_service <= SRPC_FRAMEWORK_SERVICE_MAX_ID); @@ -1569,7 +1569,7 @@ sfw_abort_rpc(srpc_client_rpc_t *rpc) } void -sfw_post_rpc(srpc_client_rpc_t *rpc) +sfw_post_rpc(struct srpc_client_rpc *rpc) { spin_lock(&rpc->crpc_lock); @@ -1759,10 +1759,10 @@ sfw_shutdown(void) } while (!list_empty(&sfw_data.fw_zombie_rpcs)) { - srpc_client_rpc_t *rpc; + struct srpc_client_rpc *rpc; rpc = list_entry(sfw_data.fw_zombie_rpcs.next, - srpc_client_rpc_t, crpc_list); + struct srpc_client_rpc, crpc_list); list_del(&rpc->crpc_list); LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc)); diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c index c7c50be..1f2ddf6 100644 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c @@ -87,7 +87,7 @@ ping_client_fini(sfw_test_instance_t *tsi) static int ping_client_prep_rpc(sfw_test_unit_t *tsu, lnet_process_id_t dest, - srpc_client_rpc_t **rpc) + struct srpc_client_rpc **rpc) { srpc_ping_reqst_t *req; sfw_test_instance_t *tsi = tsu->tsu_instance; @@ -118,7 +118,7 @@ ping_client_prep_rpc(sfw_test_unit_t *tsu, lnet_process_id_t dest, } static void -ping_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc) +ping_client_done_rpc(sfw_test_unit_t *tsu, struct srpc_client_rpc *rpc) { sfw_test_instance_t *tsi = tsu->tsu_instance; sfw_session_t *sn = tsi->tsi_batch->bat_session; diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index 72a38e4..a8f0b20 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -792,7 +792,7 @@ srpc_shutdown_service(srpc_service_t *sv) } static int -srpc_send_request(srpc_client_rpc_t *rpc) +srpc_send_request(struct srpc_client_rpc *rpc) { struct srpc_event *ev = &rpc->crpc_reqstev; int rc; @@ -814,7 +814,7 @@ srpc_send_request(srpc_client_rpc_t *rpc) } static int -srpc_prepare_reply(srpc_client_rpc_t *rpc) +srpc_prepare_reply(struct srpc_client_rpc *rpc) { struct srpc_event *ev = &rpc->crpc_replyev; __u64 *id = &rpc->crpc_reqstmsg.msg_body.reqst.rpyid; @@ -838,7 +838,7 @@ srpc_prepare_reply(srpc_client_rpc_t *rpc) } static int -srpc_prepare_bulk(srpc_client_rpc_t *rpc) +srpc_prepare_bulk(struct srpc_client_rpc *rpc) { struct srpc_bulk *bk = &rpc->crpc_bulk; struct srpc_event *ev = &rpc->crpc_bulkev; @@ -1077,7 +1077,7 @@ srpc_handle_rpc(struct swi_workitem *wi) static void srpc_client_rpc_expired(void *data) { - srpc_client_rpc_t *rpc = data; + struct srpc_client_rpc *rpc = data; CWARN("Client RPC expired: service %d, peer %s, timeout %d.\n", rpc->crpc_service, libcfs_id2str(rpc->crpc_dest), @@ -1096,7 +1096,7 @@ srpc_client_rpc_expired(void *data) } static void -srpc_add_client_rpc_timer(srpc_client_rpc_t *rpc) +srpc_add_client_rpc_timer(struct srpc_client_rpc *rpc) { struct stt_timer *timer = &rpc->crpc_timer; @@ -1117,7 +1117,7 @@ srpc_add_client_rpc_timer(srpc_client_rpc_t *rpc) * running on any CPU. */ static void -srpc_del_client_rpc_timer(srpc_client_rpc_t *rpc) +srpc_del_client_rpc_timer(struct srpc_client_rpc *rpc) { /* timer not planted or already exploded */ if (!rpc->crpc_timeout) @@ -1138,7 +1138,7 @@ srpc_del_client_rpc_timer(srpc_client_rpc_t *rpc) } static void -srpc_client_rpc_done(srpc_client_rpc_t *rpc, int status) +srpc_client_rpc_done(struct srpc_client_rpc *rpc, int status) { struct swi_workitem *wi = &rpc->crpc_wi; @@ -1178,7 +1178,7 @@ int srpc_send_rpc(struct swi_workitem *wi) { int rc = 0; - srpc_client_rpc_t *rpc; + struct srpc_client_rpc *rpc; srpc_msg_t *reply; int do_bulk; @@ -1308,15 +1308,15 @@ abort: return 0; } -srpc_client_rpc_t * +struct srpc_client_rpc * srpc_create_client_rpc(lnet_process_id_t peer, int service, int nbulkiov, int bulklen, - void (*rpc_done)(srpc_client_rpc_t *), - void (*rpc_fini)(srpc_client_rpc_t *), void *priv) + void (*rpc_done)(struct srpc_client_rpc *), + void (*rpc_fini)(struct srpc_client_rpc *), void *priv) { - srpc_client_rpc_t *rpc; + struct srpc_client_rpc *rpc; - LIBCFS_ALLOC(rpc, offsetof(srpc_client_rpc_t, + LIBCFS_ALLOC(rpc, offsetof(struct srpc_client_rpc, crpc_bulk.bk_iovs[nbulkiov])); if (!rpc) return NULL; @@ -1328,7 +1328,7 @@ srpc_create_client_rpc(lnet_process_id_t peer, int service, /* called with rpc->crpc_lock held */ void -srpc_abort_rpc(srpc_client_rpc_t *rpc, int why) +srpc_abort_rpc(struct srpc_client_rpc *rpc, int why) { LASSERT(why); @@ -1347,7 +1347,7 @@ srpc_abort_rpc(srpc_client_rpc_t *rpc, int why) /* called with rpc->crpc_lock held */ void -srpc_post_rpc(srpc_client_rpc_t *rpc) +srpc_post_rpc(struct srpc_client_rpc *rpc) { LASSERT(!rpc->crpc_aborted); LASSERT(srpc_data.rpc_state == SRPC_STATE_RUNNING); @@ -1411,7 +1411,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev) { struct srpc_service_cd *scd; struct srpc_event *rpcev = ev->md.user_ptr; - srpc_client_rpc_t *crpc; + struct srpc_client_rpc *crpc; struct srpc_server_rpc *srpc; struct srpc_buffer *buffer; srpc_service_t *sv; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index fcbaf5e..93040f6 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -202,7 +202,7 @@ struct srpc_server_rpc { }; /* client-side state of a RPC */ -typedef struct srpc_client_rpc { +struct srpc_client_rpc { struct list_head crpc_list; /* chain on user's lists */ spinlock_t crpc_lock; /* serialize */ int crpc_service; @@ -232,10 +232,10 @@ typedef struct srpc_client_rpc { lnet_handle_md_t crpc_reqstmdh; lnet_handle_md_t crpc_replymdh; struct srpc_bulk crpc_bulk; -} srpc_client_rpc_t; +}; #define srpc_client_rpc_size(rpc) \ -offsetof(srpc_client_rpc_t, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov]) +offsetof(struct srpc_client_rpc, crpc_bulk.bk_iovs[(rpc)->crpc_bulk.bk_niov]) #define srpc_client_rpc_addref(rpc) \ do { \ @@ -357,9 +357,9 @@ typedef struct { * client */ int (*tso_prep_rpc)(struct sfw_test_unit *tsu, lnet_process_id_t dest, - srpc_client_rpc_t **rpc); /* prep a tests rpc */ + struct srpc_client_rpc **rpc); /* prep a tests rpc */ void (*tso_done_rpc)(struct sfw_test_unit *tsu, - srpc_client_rpc_t *rpc); /* done a test rpc */ + struct srpc_client_rpc *rpc); /* done a test rpc */ } sfw_test_client_ops_t; typedef struct sfw_test_instance { @@ -413,16 +413,16 @@ typedef struct sfw_test_case { sfw_test_client_ops_t *tsc_cli_ops; /* ops of test client */ } sfw_test_case_t; -srpc_client_rpc_t * +struct srpc_client_rpc * sfw_create_rpc(lnet_process_id_t peer, int service, unsigned features, int nbulkiov, int bulklen, - void (*done)(srpc_client_rpc_t *), void *priv); + void (*done)(struct srpc_client_rpc *), void *priv); int sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer, unsigned features, - int nblk, int blklen, srpc_client_rpc_t **rpc); -void sfw_abort_rpc(srpc_client_rpc_t *rpc); -void sfw_post_rpc(srpc_client_rpc_t *rpc); -void sfw_client_rpc_done(srpc_client_rpc_t *rpc); + int nblk, int blklen, struct srpc_client_rpc **rpc); +void sfw_abort_rpc(struct srpc_client_rpc *rpc); +void sfw_post_rpc(struct srpc_client_rpc *rpc); +void sfw_client_rpc_done(struct srpc_client_rpc *rpc); void sfw_unpack_message(srpc_msg_t *msg); void sfw_free_pages(struct srpc_server_rpc *rpc); void sfw_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i); @@ -430,13 +430,13 @@ int sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len, int sink); int sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply); -srpc_client_rpc_t * +struct srpc_client_rpc * srpc_create_client_rpc(lnet_process_id_t peer, int service, int nbulkiov, int bulklen, - void (*rpc_done)(srpc_client_rpc_t *), - void (*rpc_fini)(srpc_client_rpc_t *), void *priv); -void srpc_post_rpc(srpc_client_rpc_t *rpc); -void srpc_abort_rpc(srpc_client_rpc_t *rpc, int why); + void (*rpc_done)(struct srpc_client_rpc *), + void (*rpc_fini)(struct srpc_client_rpc *), void *priv); +void srpc_post_rpc(struct srpc_client_rpc *rpc); +void srpc_abort_rpc(struct srpc_client_rpc *rpc, int why); void srpc_free_bulk(struct srpc_bulk *bk); struct srpc_bulk *srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len, int sink); @@ -505,7 +505,7 @@ void sfw_shutdown(void); void srpc_shutdown(void); static inline void -srpc_destroy_client_rpc(srpc_client_rpc_t *rpc) +srpc_destroy_client_rpc(struct srpc_client_rpc *rpc) { LASSERT(rpc); LASSERT(!srpc_event_pending(rpc)); @@ -518,14 +518,14 @@ srpc_destroy_client_rpc(srpc_client_rpc_t *rpc) } static inline void -srpc_init_client_rpc(srpc_client_rpc_t *rpc, lnet_process_id_t peer, +srpc_init_client_rpc(struct srpc_client_rpc *rpc, lnet_process_id_t peer, int service, int nbulkiov, int bulklen, - void (*rpc_done)(srpc_client_rpc_t *), - void (*rpc_fini)(srpc_client_rpc_t *), void *priv) + void (*rpc_done)(struct srpc_client_rpc *), + void (*rpc_fini)(struct srpc_client_rpc *), void *priv) { LASSERT(nbulkiov <= LNET_MAX_IOV); - memset(rpc, 0, offsetof(srpc_client_rpc_t, + memset(rpc, 0, offsetof(struct srpc_client_rpc, crpc_bulk.bk_iovs[nbulkiov])); INIT_LIST_HEAD(&rpc->crpc_list); -- cgit v0.10.2 From 682513b8634f8d5128ec67551d8ff94aaafd1c5c Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:33 -0400 Subject: staging: lustre: selftest: convert srpc_service_t to proper struct Turn typedef srpc_service_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index 6657a58..f2c37b4 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -497,7 +497,8 @@ void brw_init_test_client(void) brw_test_client.tso_done_rpc = brw_client_done_rpc; }; -srpc_service_t brw_test_service; +struct srpc_service brw_test_service; + void brw_init_test_service(void) { brw_test_service.sv_id = SRPC_SERVICE_BRW; diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index dcfc83d..1352310 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -1986,7 +1986,8 @@ out: return rc; } -static srpc_service_t lstcon_acceptor_service; +static struct srpc_service lstcon_acceptor_service; + static void lstcon_init_acceptor_service(void) { /* initialize selftest console acceptor service table */ diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index 931a517..20015d6 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -135,7 +135,7 @@ sfw_find_test_case(int id) } static int -sfw_register_test(srpc_service_t *service, sfw_test_client_ops_t *cliops) +sfw_register_test(struct srpc_service *service, sfw_test_client_ops_t *cliops) { sfw_test_case_t *tsc; @@ -1584,7 +1584,7 @@ sfw_post_rpc(struct srpc_client_rpc *rpc) spin_unlock(&rpc->crpc_lock); } -static srpc_service_t sfw_services[] = { +static struct srpc_service sfw_services[] = { { /* sv_id */ SRPC_SERVICE_DEBUG, /* sv_name */ "debug", @@ -1628,7 +1628,7 @@ sfw_startup(void) int i; int rc; int error; - srpc_service_t *sv; + struct srpc_service *sv; sfw_test_case_t *tsc; if (session_timeout < 0) { @@ -1721,7 +1721,7 @@ sfw_startup(void) void sfw_shutdown(void) { - srpc_service_t *sv; + struct srpc_service *sv; sfw_test_case_t *tsc; int i; diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c index 1f2ddf6..c09b599 100644 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c @@ -219,7 +219,8 @@ void ping_init_test_client(void) ping_test_client.tso_done_rpc = ping_client_done_rpc; } -srpc_service_t ping_test_service; +struct srpc_service ping_test_service; + void ping_init_test_service(void) { ping_test_service.sv_id = SRPC_SERVICE_PING; diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index a8f0b20..e3cd407 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -56,7 +56,7 @@ typedef enum { static struct smoketest_rpc { spinlock_t rpc_glock; /* global lock */ - srpc_service_t *rpc_services[SRPC_SERVICE_MAX_ID + 1]; + struct srpc_service *rpc_services[SRPC_SERVICE_MAX_ID + 1]; lnet_handle_eq_t rpc_lnet_eq; /* _the_ LNet event queue */ srpc_state_t rpc_state; srpc_counters_t rpc_counters; @@ -338,7 +338,7 @@ srpc_add_service(struct srpc_service *sv) } int -srpc_remove_service(srpc_service_t *sv) +srpc_remove_service(struct srpc_service *sv) { int id = sv->sv_id; @@ -755,7 +755,7 @@ srpc_abort_service(struct srpc_service *sv) } void -srpc_shutdown_service(srpc_service_t *sv) +srpc_shutdown_service(struct srpc_service *sv) { struct srpc_service_cd *scd; struct srpc_server_rpc *rpc; @@ -1414,7 +1414,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev) struct srpc_client_rpc *crpc; struct srpc_server_rpc *srpc; struct srpc_buffer *buffer; - srpc_service_t *sv; + struct srpc_service *sv; srpc_msg_t *msg; srpc_msg_type_t type; @@ -1663,7 +1663,7 @@ srpc_shutdown(void) spin_lock(&srpc_data.rpc_glock); for (i = 0; i <= SRPC_SERVICE_MAX_ID; i++) { - srpc_service_t *sv = srpc_data.rpc_services[i]; + struct srpc_service *sv = srpc_data.rpc_services[i]; LASSERTF(!sv, "service not empty: id %d, name %s\n", i, sv->sv_name); diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 93040f6..2052b11 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -307,7 +307,7 @@ struct srpc_service_cd { #define SFW_FRWK_WI_MIN 16 #define SFW_FRWK_WI_MAX 256 -typedef struct srpc_service { +struct srpc_service { int sv_id; /* service id */ const char *sv_name; /* human readable name */ int sv_wi_total; /* total server workitems */ @@ -321,7 +321,7 @@ typedef struct srpc_service { */ int (*sv_handler)(struct srpc_server_rpc *); int (*sv_bulk_ready)(struct srpc_server_rpc *, int); -} srpc_service_t; +}; typedef struct { struct list_head sn_list; /* chain on fw_zombie_sessions */ @@ -409,7 +409,7 @@ typedef struct sfw_test_unit { typedef struct sfw_test_case { struct list_head tsc_list; /* chain on fw_tests */ - srpc_service_t *tsc_srv_service; /* test service */ + struct srpc_service *tsc_srv_service; /* test service */ sfw_test_client_ops_t *tsc_cli_ops; /* ops of test client */ } sfw_test_case_t; @@ -442,13 +442,13 @@ struct srpc_bulk *srpc_alloc_bulk(int cpt, unsigned bulk_npg, unsigned bulk_len, int sink); int srpc_send_rpc(struct swi_workitem *wi); int srpc_send_reply(struct srpc_server_rpc *rpc); -int srpc_add_service(srpc_service_t *sv); -int srpc_remove_service(srpc_service_t *sv); -void srpc_shutdown_service(srpc_service_t *sv); -void srpc_abort_service(srpc_service_t *sv); -int srpc_finish_service(srpc_service_t *sv); -int srpc_service_add_buffers(srpc_service_t *sv, int nbuffer); -void srpc_service_remove_buffers(srpc_service_t *sv, int nbuffer); +int srpc_add_service(struct srpc_service *sv); +int srpc_remove_service(struct srpc_service *sv); +void srpc_shutdown_service(struct srpc_service *sv); +void srpc_abort_service(struct srpc_service *sv); +int srpc_finish_service(struct srpc_service *sv); +int srpc_service_add_buffers(struct srpc_service *sv, int nbuffer); +void srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer); void srpc_get_counters(srpc_counters_t *cnt); void srpc_set_counters(const srpc_counters_t *cnt); @@ -595,7 +595,7 @@ do { \ } while (0) static inline void -srpc_wait_service_shutdown(srpc_service_t *sv) +srpc_wait_service_shutdown(struct srpc_service *sv) { int i = 2; @@ -613,13 +613,13 @@ srpc_wait_service_shutdown(srpc_service_t *sv) extern sfw_test_client_ops_t brw_test_client; void brw_init_test_client(void); -extern srpc_service_t brw_test_service; +extern struct srpc_service brw_test_service; void brw_init_test_service(void); extern sfw_test_client_ops_t ping_test_client; void ping_init_test_client(void); -extern srpc_service_t ping_test_service; +extern struct srpc_service ping_test_service; void ping_init_test_service(void); #endif /* __SELFTEST_SELFTEST_H__ */ -- cgit v0.10.2 From 693d26648a4dcbb08b8ea77bade6ac02fde8a046 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:34 -0400 Subject: staging: lustre: selftest: convert sfw_session_t to proper struct Turn typedef sfw_session_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index f2c37b4..6b02083 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -69,7 +69,7 @@ brw_client_fini(sfw_test_instance_t *tsi) static int brw_client_init(sfw_test_instance_t *tsi) { - sfw_session_t *sn = tsi->tsi_batch->bat_session; + struct sfw_session *sn = tsi->tsi_batch->bat_session; int flags; int npg; int len; @@ -259,7 +259,7 @@ brw_client_prep_rpc(sfw_test_unit_t *tsu, { struct srpc_bulk *bulk = tsu->tsu_private; sfw_test_instance_t *tsi = tsu->tsu_instance; - sfw_session_t *sn = tsi->tsi_batch->bat_session; + struct sfw_session *sn = tsi->tsi_batch->bat_session; struct srpc_client_rpc *rpc; srpc_brw_reqst_t *req; int flags; @@ -317,7 +317,7 @@ brw_client_done_rpc(sfw_test_unit_t *tsu, struct srpc_client_rpc *rpc) { __u64 magic = BRW_MAGIC; sfw_test_instance_t *tsi = tsu->tsu_instance; - sfw_session_t *sn = tsi->tsi_batch->bat_session; + struct sfw_session *sn = tsi->tsi_batch->bat_session; srpc_msg_t *msg = &rpc->crpc_replymsg; srpc_brw_reply_t *reply = &msg->msg_body.brw_reply; srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst; diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index 20015d6..a637b2b 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -109,14 +109,14 @@ static struct smoketest_framework { struct list_head fw_tests; /* registered test cases */ atomic_t fw_nzombies; /* # zombie sessions */ spinlock_t fw_lock; /* serialise */ - sfw_session_t *fw_session; /* _the_ session */ + struct sfw_session *fw_session; /* _the_ session */ int fw_shuttingdown; /* shutdown in progress */ struct srpc_server_rpc *fw_active_srpc;/* running RPC */ } sfw_data; /* forward ref's */ int sfw_stop_batch(sfw_batch_t *tsb, int force); -void sfw_destroy_session(sfw_session_t *sn); +void sfw_destroy_session(struct sfw_session *sn); static inline sfw_test_case_t * sfw_find_test_case(int id) @@ -159,7 +159,7 @@ sfw_register_test(struct srpc_service *service, sfw_test_client_ops_t *cliops) static void sfw_add_session_timer(void) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; struct stt_timer *timer = &sn->sn_timer; LASSERT(!sfw_data.fw_shuttingdown); @@ -177,7 +177,7 @@ sfw_add_session_timer(void) static int sfw_del_session_timer(void) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; if (!sn || !sn->sn_timer_active) return 0; @@ -196,7 +196,7 @@ static void sfw_deactivate_session(void) __must_hold(&sfw_data.fw_lock) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; int nactive = 0; sfw_batch_t *tsb; sfw_test_case_t *tsc; @@ -239,7 +239,7 @@ __must_hold(&sfw_data.fw_lock) static void sfw_session_expired(void *data) { - sfw_session_t *sn = data; + struct sfw_session *sn = data; spin_lock(&sfw_data.fw_lock); @@ -257,12 +257,12 @@ sfw_session_expired(void *data) } static inline void -sfw_init_session(sfw_session_t *sn, lst_sid_t sid, +sfw_init_session(struct sfw_session *sn, lst_sid_t sid, unsigned features, const char *name) { struct stt_timer *timer = &sn->sn_timer; - memset(sn, 0, sizeof(sfw_session_t)); + memset(sn, 0, sizeof(struct sfw_session)); INIT_LIST_HEAD(&sn->sn_list); INIT_LIST_HEAD(&sn->sn_batches); atomic_set(&sn->sn_refcount, 1); /* +1 for caller */ @@ -321,7 +321,7 @@ sfw_client_rpc_fini(struct srpc_client_rpc *rpc) static sfw_batch_t * sfw_find_batch(lst_bid_t bid) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; sfw_batch_t *bat; LASSERT(sn); @@ -337,7 +337,7 @@ sfw_find_batch(lst_bid_t bid) static sfw_batch_t * sfw_bid2batch(lst_bid_t bid) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; sfw_batch_t *bat; LASSERT(sn); @@ -363,7 +363,7 @@ sfw_bid2batch(lst_bid_t bid) static int sfw_get_stats(srpc_stat_reqst_t *request, srpc_stat_reply_t *reply) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; sfw_counters_t *cnt = &reply->str_fw; sfw_batch_t *bat; @@ -404,7 +404,7 @@ sfw_get_stats(srpc_stat_reqst_t *request, srpc_stat_reply_t *reply) int sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; srpc_msg_t *msg = container_of(request, srpc_msg_t, msg_body.mksn_reqst); int cplen = 0; @@ -449,7 +449,7 @@ sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply) } /* brand new or create by force */ - LIBCFS_ALLOC(sn, sizeof(sfw_session_t)); + LIBCFS_ALLOC(sn, sizeof(struct sfw_session)); if (!sn) { CERROR("dropping RPC mksn under memory pressure\n"); return -ENOMEM; @@ -475,7 +475,7 @@ sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply) static int sfw_remove_session(srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; reply->rmsn_sid = !sn ? LST_INVALID_SID : sn->sn_id; @@ -507,7 +507,7 @@ sfw_remove_session(srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply) static int sfw_debug_session(srpc_debug_reqst_t *request, srpc_debug_reply_t *reply) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; if (!sn) { reply->dbg_status = ESRCH; @@ -666,7 +666,7 @@ sfw_destroy_batch(sfw_batch_t *tsb) } void -sfw_destroy_session(sfw_session_t *sn) +sfw_destroy_session(struct sfw_session *sn) { sfw_batch_t *batch; @@ -828,7 +828,7 @@ sfw_test_unit_done(sfw_test_unit_t *tsu) { sfw_test_instance_t *tsi = tsu->tsu_instance; sfw_batch_t *tsb = tsi->tsi_batch; - sfw_session_t *sn = tsb->bat_session; + struct sfw_session *sn = tsb->bat_session; LASSERT(sfw_test_active(tsi)); @@ -1115,7 +1115,7 @@ sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len, static int sfw_add_test(struct srpc_server_rpc *rpc) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; srpc_test_reply_t *reply = &rpc->srpc_replymsg.msg_body.tes_reply; srpc_test_reqst_t *request; int rc; @@ -1185,7 +1185,7 @@ sfw_add_test(struct srpc_server_rpc *rpc) static int sfw_control_batch(srpc_batch_reqst_t *request, srpc_batch_reply_t *reply) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; int rc = 0; sfw_batch_t *bat; @@ -1261,7 +1261,7 @@ sfw_handle_server_rpc(struct srpc_server_rpc *rpc) if (sv->sv_id != SRPC_SERVICE_MAKE_SESSION && sv->sv_id != SRPC_SERVICE_DEBUG) { - sfw_session_t *sn = sfw_data.fw_session; + struct sfw_session *sn = sfw_data.fw_session; if (sn && sn->sn_features != request->msg_ses_feats) { diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c index c09b599..df33a13 100644 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c @@ -58,7 +58,7 @@ static struct lst_ping_data lst_ping_data; static int ping_client_init(sfw_test_instance_t *tsi) { - sfw_session_t *sn = tsi->tsi_batch->bat_session; + struct sfw_session *sn = tsi->tsi_batch->bat_session; LASSERT(tsi->tsi_is_client); LASSERT(sn && !(sn->sn_features & ~LST_FEATS_MASK)); @@ -72,7 +72,7 @@ ping_client_init(sfw_test_instance_t *tsi) static void ping_client_fini(sfw_test_instance_t *tsi) { - sfw_session_t *sn = tsi->tsi_batch->bat_session; + struct sfw_session *sn = tsi->tsi_batch->bat_session; int errors; LASSERT(sn); @@ -91,7 +91,7 @@ ping_client_prep_rpc(sfw_test_unit_t *tsu, lnet_process_id_t dest, { srpc_ping_reqst_t *req; sfw_test_instance_t *tsi = tsu->tsu_instance; - sfw_session_t *sn = tsi->tsi_batch->bat_session; + struct sfw_session *sn = tsi->tsi_batch->bat_session; struct timespec64 ts; int rc; @@ -121,7 +121,7 @@ static void ping_client_done_rpc(sfw_test_unit_t *tsu, struct srpc_client_rpc *rpc) { sfw_test_instance_t *tsi = tsu->tsu_instance; - sfw_session_t *sn = tsi->tsi_batch->bat_session; + struct sfw_session *sn = tsi->tsi_batch->bat_session; srpc_ping_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.ping_reqst; srpc_ping_reply_t *reply = &rpc->crpc_replymsg.msg_body.ping_reply; struct timespec64 ts; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 2052b11..18278b8 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -323,7 +323,7 @@ struct srpc_service { int (*sv_bulk_ready)(struct srpc_server_rpc *, int); }; -typedef struct { +struct sfw_session { struct list_head sn_list; /* chain on fw_zombie_sessions */ lst_sid_t sn_id; /* unique identifier */ unsigned int sn_timeout; /* # seconds' inactivity to expire */ @@ -336,7 +336,7 @@ typedef struct { atomic_t sn_brw_errors; atomic_t sn_ping_errors; unsigned long sn_started; -} sfw_session_t; +}; #define sfw_sid_equal(sid0, sid1) ((sid0).ses_nid == (sid1).ses_nid && \ (sid0).ses_stamp == (sid1).ses_stamp) @@ -345,7 +345,7 @@ typedef struct { struct list_head bat_list; /* chain on sn_batches */ lst_bid_t bat_id; /* batch id */ int bat_error; /* error code of batch */ - sfw_session_t *bat_session; /* batch's session */ + struct sfw_session *bat_session; /* batch's session */ atomic_t bat_nactive; /* # of active tests */ struct list_head bat_tests; /* test instances */ } sfw_batch_t; -- cgit v0.10.2 From 074bca96640d91623a6a50d060e05ddd8d7200bc Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:35 -0400 Subject: staging: lustre: selftest: convert sfw_batch_t to proper struct Turn typedef sfw_batch_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index a637b2b..e1d6996 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -115,7 +115,7 @@ static struct smoketest_framework { } sfw_data; /* forward ref's */ -int sfw_stop_batch(sfw_batch_t *tsb, int force); +int sfw_stop_batch(struct sfw_batch *tsb, int force); void sfw_destroy_session(struct sfw_session *sn); static inline sfw_test_case_t * @@ -198,7 +198,7 @@ __must_hold(&sfw_data.fw_lock) { struct sfw_session *sn = sfw_data.fw_session; int nactive = 0; - sfw_batch_t *tsb; + struct sfw_batch *tsb; sfw_test_case_t *tsc; if (!sn) @@ -318,11 +318,11 @@ sfw_client_rpc_fini(struct srpc_client_rpc *rpc) spin_unlock(&sfw_data.fw_lock); } -static sfw_batch_t * +static struct sfw_batch * sfw_find_batch(lst_bid_t bid) { struct sfw_session *sn = sfw_data.fw_session; - sfw_batch_t *bat; + struct sfw_batch *bat; LASSERT(sn); @@ -334,11 +334,11 @@ sfw_find_batch(lst_bid_t bid) return NULL; } -static sfw_batch_t * +static struct sfw_batch * sfw_bid2batch(lst_bid_t bid) { struct sfw_session *sn = sfw_data.fw_session; - sfw_batch_t *bat; + struct sfw_batch *bat; LASSERT(sn); @@ -346,7 +346,7 @@ sfw_bid2batch(lst_bid_t bid) if (bat) return bat; - LIBCFS_ALLOC(bat, sizeof(sfw_batch_t)); + LIBCFS_ALLOC(bat, sizeof(struct sfw_batch)); if (!bat) return NULL; @@ -365,7 +365,7 @@ sfw_get_stats(srpc_stat_reqst_t *request, srpc_stat_reply_t *reply) { struct sfw_session *sn = sfw_data.fw_session; sfw_counters_t *cnt = &reply->str_fw; - sfw_batch_t *bat; + struct sfw_batch *bat; reply->str_sid = !sn ? LST_INVALID_SID : sn->sn_id; @@ -648,7 +648,7 @@ clean: } static void -sfw_destroy_batch(sfw_batch_t *tsb) +sfw_destroy_batch(struct sfw_batch *tsb) { sfw_test_instance_t *tsi; @@ -662,20 +662,20 @@ sfw_destroy_batch(sfw_batch_t *tsb) sfw_destroy_test_instance(tsi); } - LIBCFS_FREE(tsb, sizeof(sfw_batch_t)); + LIBCFS_FREE(tsb, sizeof(struct sfw_batch)); } void sfw_destroy_session(struct sfw_session *sn) { - sfw_batch_t *batch; + struct sfw_batch *batch; LASSERT(list_empty(&sn->sn_list)); LASSERT(sn != sfw_data.fw_session); while (!list_empty(&sn->sn_batches)) { batch = list_entry(sn->sn_batches.next, - sfw_batch_t, bat_list); + struct sfw_batch, bat_list); list_del_init(&batch->bat_list); sfw_destroy_batch(batch); } @@ -729,7 +729,7 @@ sfw_unpack_addtest_req(srpc_msg_t *msg) } static int -sfw_add_test_instance(sfw_batch_t *tsb, struct srpc_server_rpc *rpc) +sfw_add_test_instance(struct sfw_batch *tsb, struct srpc_server_rpc *rpc) { srpc_msg_t *msg = &rpc->srpc_reqstbuf->buf_msg; srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; @@ -827,7 +827,7 @@ static void sfw_test_unit_done(sfw_test_unit_t *tsu) { sfw_test_instance_t *tsi = tsu->tsu_instance; - sfw_batch_t *tsb = tsi->tsi_batch; + struct sfw_batch *tsb = tsi->tsi_batch; struct sfw_session *sn = tsb->bat_session; LASSERT(sfw_test_active(tsi)); @@ -991,7 +991,7 @@ test_done: } static int -sfw_run_batch(sfw_batch_t *tsb) +sfw_run_batch(struct sfw_batch *tsb) { struct swi_workitem *wi; sfw_test_unit_t *tsu; @@ -1026,7 +1026,7 @@ sfw_run_batch(sfw_batch_t *tsb) } int -sfw_stop_batch(sfw_batch_t *tsb, int force) +sfw_stop_batch(struct sfw_batch *tsb, int force) { sfw_test_instance_t *tsi; struct srpc_client_rpc *rpc; @@ -1068,7 +1068,7 @@ sfw_stop_batch(sfw_batch_t *tsb, int force) } static int -sfw_query_batch(sfw_batch_t *tsb, int testidx, srpc_batch_reply_t *reply) +sfw_query_batch(struct sfw_batch *tsb, int testidx, srpc_batch_reply_t *reply) { sfw_test_instance_t *tsi; @@ -1119,7 +1119,7 @@ sfw_add_test(struct srpc_server_rpc *rpc) srpc_test_reply_t *reply = &rpc->srpc_replymsg.msg_body.tes_reply; srpc_test_reqst_t *request; int rc; - sfw_batch_t *bat; + struct sfw_batch *bat; request = &rpc->srpc_reqstbuf->buf_msg.msg_body.tes_reqst; reply->tsr_sid = !sn ? LST_INVALID_SID : sn->sn_id; @@ -1187,7 +1187,7 @@ sfw_control_batch(srpc_batch_reqst_t *request, srpc_batch_reply_t *reply) { struct sfw_session *sn = sfw_data.fw_session; int rc = 0; - sfw_batch_t *bat; + struct sfw_batch *bat; reply->bar_sid = !sn ? LST_INVALID_SID : sn->sn_id; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 18278b8..550fa32 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -341,14 +341,14 @@ struct sfw_session { #define sfw_sid_equal(sid0, sid1) ((sid0).ses_nid == (sid1).ses_nid && \ (sid0).ses_stamp == (sid1).ses_stamp) -typedef struct { +struct sfw_batch { struct list_head bat_list; /* chain on sn_batches */ lst_bid_t bat_id; /* batch id */ int bat_error; /* error code of batch */ struct sfw_session *bat_session; /* batch's session */ atomic_t bat_nactive; /* # of active tests */ struct list_head bat_tests; /* test instances */ -} sfw_batch_t; +}; typedef struct { int (*tso_init)(struct sfw_test_instance *tsi); /* initialize test @@ -365,7 +365,7 @@ typedef struct { typedef struct sfw_test_instance { struct list_head tsi_list; /* chain on batch */ int tsi_service; /* test type */ - sfw_batch_t *tsi_batch; /* batch */ + struct sfw_batch *tsi_batch; /* batch */ sfw_test_client_ops_t *tsi_ops; /* test client operation */ -- cgit v0.10.2 From d9c460ea761c5be5c5a386416be2517c824bd293 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:36 -0400 Subject: staging: lustre: selftest: convert sfw_test_client_ops_t to proper struct Turn typedef sfw_test_client_ops_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index 6b02083..558f2a8 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -488,7 +488,8 @@ brw_server_handle(struct srpc_server_rpc *rpc) return 0; } -sfw_test_client_ops_t brw_test_client; +struct sfw_test_client_ops brw_test_client; + void brw_init_test_client(void) { brw_test_client.tso_init = brw_client_init; diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index e1d6996..bf52d7a 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -135,7 +135,7 @@ sfw_find_test_case(int id) } static int -sfw_register_test(struct srpc_service *service, sfw_test_client_ops_t *cliops) +sfw_register_test(struct srpc_service *service, struct sfw_test_client_ops *cliops) { sfw_test_case_t *tsc; diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c index df33a13..be13004 100644 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c @@ -210,7 +210,8 @@ ping_server_handle(struct srpc_server_rpc *rpc) return 0; } -sfw_test_client_ops_t ping_test_client; +struct sfw_test_client_ops ping_test_client; + void ping_init_test_client(void) { ping_test_client.tso_init = ping_client_init; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 550fa32..4ab8d10 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -350,7 +350,7 @@ struct sfw_batch { struct list_head bat_tests; /* test instances */ }; -typedef struct { +struct sfw_test_client_ops { int (*tso_init)(struct sfw_test_instance *tsi); /* initialize test * client */ void (*tso_fini)(struct sfw_test_instance *tsi); /* finalize test @@ -360,13 +360,13 @@ typedef struct { struct srpc_client_rpc **rpc); /* prep a tests rpc */ void (*tso_done_rpc)(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc); /* done a test rpc */ -} sfw_test_client_ops_t; +}; typedef struct sfw_test_instance { struct list_head tsi_list; /* chain on batch */ int tsi_service; /* test type */ struct sfw_batch *tsi_batch; /* batch */ - sfw_test_client_ops_t *tsi_ops; /* test client operation + struct sfw_test_client_ops *tsi_ops; /* test client operation */ /* public parameter for all test units */ @@ -409,8 +409,8 @@ typedef struct sfw_test_unit { typedef struct sfw_test_case { struct list_head tsc_list; /* chain on fw_tests */ - struct srpc_service *tsc_srv_service; /* test service */ - sfw_test_client_ops_t *tsc_cli_ops; /* ops of test client */ + struct srpc_service *tsc_srv_service; /* test service */ + struct sfw_test_client_ops *tsc_cli_ops; /* ops of test client */ } sfw_test_case_t; struct srpc_client_rpc * @@ -610,13 +610,13 @@ srpc_wait_service_shutdown(struct srpc_service *sv) } } -extern sfw_test_client_ops_t brw_test_client; +extern struct sfw_test_client_ops brw_test_client; void brw_init_test_client(void); extern struct srpc_service brw_test_service; void brw_init_test_service(void); -extern sfw_test_client_ops_t ping_test_client; +extern struct sfw_test_client_ops ping_test_client; void ping_init_test_client(void); extern struct srpc_service ping_test_service; -- cgit v0.10.2 From 7ca48d8585ee50789e5ae2fa77ffb355ae14cabf Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:37 -0400 Subject: staging: lustre: selftest: convert sfw_test_instance_t to proper struct Turn typedef sfw_test_instance_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index 558f2a8..bb50ee1 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -49,7 +49,7 @@ module_param(brw_inject_errors, int, 0644); MODULE_PARM_DESC(brw_inject_errors, "# data errors to inject randomly, zero by default"); static void -brw_client_fini(sfw_test_instance_t *tsi) +brw_client_fini(struct sfw_test_instance *tsi) { struct srpc_bulk *bulk; sfw_test_unit_t *tsu; @@ -67,7 +67,7 @@ brw_client_fini(sfw_test_instance_t *tsi) } static int -brw_client_init(sfw_test_instance_t *tsi) +brw_client_init(struct sfw_test_instance *tsi) { struct sfw_session *sn = tsi->tsi_batch->bat_session; int flags; @@ -258,7 +258,7 @@ brw_client_prep_rpc(sfw_test_unit_t *tsu, lnet_process_id_t dest, struct srpc_client_rpc **rpcpp) { struct srpc_bulk *bulk = tsu->tsu_private; - sfw_test_instance_t *tsi = tsu->tsu_instance; + struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_session *sn = tsi->tsi_batch->bat_session; struct srpc_client_rpc *rpc; srpc_brw_reqst_t *req; @@ -316,7 +316,7 @@ static void brw_client_done_rpc(sfw_test_unit_t *tsu, struct srpc_client_rpc *rpc) { __u64 magic = BRW_MAGIC; - sfw_test_instance_t *tsi = tsu->tsu_instance; + struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_session *sn = tsi->tsi_batch->bat_session; srpc_msg_t *msg = &rpc->crpc_replymsg; srpc_brw_reply_t *reply = &msg->msg_body.brw_reply; diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index bf52d7a..d783f08 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -529,7 +529,7 @@ static void sfw_test_rpc_fini(struct srpc_client_rpc *rpc) { sfw_test_unit_t *tsu = rpc->crpc_priv; - sfw_test_instance_t *tsi = tsu->tsu_instance; + struct sfw_test_instance *tsi = tsu->tsu_instance; /* Called with hold of tsi->tsi_lock */ LASSERT(list_empty(&rpc->crpc_list)); @@ -537,7 +537,7 @@ sfw_test_rpc_fini(struct srpc_client_rpc *rpc) } static inline int -sfw_test_buffers(sfw_test_instance_t *tsi) +sfw_test_buffers(struct sfw_test_instance *tsi) { struct sfw_test_case *tsc; struct srpc_service *svc; @@ -614,7 +614,7 @@ sfw_unload_test(struct sfw_test_instance *tsi) } static void -sfw_destroy_test_instance(sfw_test_instance_t *tsi) +sfw_destroy_test_instance(struct sfw_test_instance *tsi) { struct srpc_client_rpc *rpc; sfw_test_unit_t *tsu; @@ -650,14 +650,14 @@ clean: static void sfw_destroy_batch(struct sfw_batch *tsb) { - sfw_test_instance_t *tsi; + struct sfw_test_instance *tsi; LASSERT(!sfw_batch_active(tsb)); LASSERT(list_empty(&tsb->bat_list)); while (!list_empty(&tsb->bat_tests)) { tsi = list_entry(tsb->bat_tests.next, - sfw_test_instance_t, tsi_list); + struct sfw_test_instance, tsi_list); list_del_init(&tsi->tsi_list); sfw_destroy_test_instance(tsi); } @@ -736,7 +736,7 @@ sfw_add_test_instance(struct sfw_batch *tsb, struct srpc_server_rpc *rpc) struct srpc_bulk *bk = rpc->srpc_bulk; int ndest = req->tsr_ndest; sfw_test_unit_t *tsu; - sfw_test_instance_t *tsi; + struct sfw_test_instance *tsi; int i; int rc; @@ -826,7 +826,7 @@ error: static void sfw_test_unit_done(sfw_test_unit_t *tsu) { - sfw_test_instance_t *tsi = tsu->tsu_instance; + struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_batch *tsb = tsi->tsi_batch; struct sfw_session *sn = tsb->bat_session; @@ -869,7 +869,7 @@ static void sfw_test_rpc_done(struct srpc_client_rpc *rpc) { sfw_test_unit_t *tsu = rpc->crpc_priv; - sfw_test_instance_t *tsi = tsu->tsu_instance; + struct sfw_test_instance *tsi = tsu->tsu_instance; int done = 0; tsi->tsi_ops->tso_done_rpc(tsu, rpc); @@ -905,7 +905,7 @@ sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer, struct srpc_client_rpc **rpcpp) { struct srpc_client_rpc *rpc = NULL; - sfw_test_instance_t *tsi = tsu->tsu_instance; + struct sfw_test_instance *tsi = tsu->tsu_instance; spin_lock(&tsi->tsi_lock); @@ -945,7 +945,7 @@ static int sfw_run_test(struct swi_workitem *wi) { sfw_test_unit_t *tsu = wi->swi_workitem.wi_data; - sfw_test_instance_t *tsi = tsu->tsu_instance; + struct sfw_test_instance *tsi = tsu->tsu_instance; struct srpc_client_rpc *rpc = NULL; LASSERT(wi == &tsu->tsu_worker); @@ -995,7 +995,7 @@ sfw_run_batch(struct sfw_batch *tsb) { struct swi_workitem *wi; sfw_test_unit_t *tsu; - sfw_test_instance_t *tsi; + struct sfw_test_instance *tsi; if (sfw_batch_active(tsb)) { CDEBUG(D_NET, "Batch already active: %llu (%d)\n", @@ -1028,7 +1028,7 @@ sfw_run_batch(struct sfw_batch *tsb) int sfw_stop_batch(struct sfw_batch *tsb, int force) { - sfw_test_instance_t *tsi; + struct sfw_test_instance *tsi; struct srpc_client_rpc *rpc; if (!sfw_batch_active(tsb)) { @@ -1070,7 +1070,7 @@ sfw_stop_batch(struct sfw_batch *tsb, int force) static int sfw_query_batch(struct sfw_batch *tsb, int testidx, srpc_batch_reply_t *reply) { - sfw_test_instance_t *tsi; + struct sfw_test_instance *tsi; if (testidx < 0) return -EINVAL; diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c index be13004..4e45428 100644 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c @@ -56,7 +56,7 @@ struct lst_ping_data { static struct lst_ping_data lst_ping_data; static int -ping_client_init(sfw_test_instance_t *tsi) +ping_client_init(struct sfw_test_instance *tsi) { struct sfw_session *sn = tsi->tsi_batch->bat_session; @@ -70,7 +70,7 @@ ping_client_init(sfw_test_instance_t *tsi) } static void -ping_client_fini(sfw_test_instance_t *tsi) +ping_client_fini(struct sfw_test_instance *tsi) { struct sfw_session *sn = tsi->tsi_batch->bat_session; int errors; @@ -90,7 +90,7 @@ ping_client_prep_rpc(sfw_test_unit_t *tsu, lnet_process_id_t dest, struct srpc_client_rpc **rpc) { srpc_ping_reqst_t *req; - sfw_test_instance_t *tsi = tsu->tsu_instance; + struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_session *sn = tsi->tsi_batch->bat_session; struct timespec64 ts; int rc; @@ -120,7 +120,7 @@ ping_client_prep_rpc(sfw_test_unit_t *tsu, lnet_process_id_t dest, static void ping_client_done_rpc(sfw_test_unit_t *tsu, struct srpc_client_rpc *rpc) { - sfw_test_instance_t *tsi = tsu->tsu_instance; + struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_session *sn = tsi->tsi_batch->bat_session; srpc_ping_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.ping_reqst; srpc_ping_reply_t *reply = &rpc->crpc_replymsg.msg_body.ping_reply; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 4ab8d10..a95bdca 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -362,7 +362,7 @@ struct sfw_test_client_ops { struct srpc_client_rpc *rpc); /* done a test rpc */ }; -typedef struct sfw_test_instance { +struct sfw_test_instance { struct list_head tsi_list; /* chain on batch */ int tsi_service; /* test type */ struct sfw_batch *tsi_batch; /* batch */ @@ -389,7 +389,7 @@ typedef struct sfw_test_instance { test_bulk_req_t bulk_v0; /* bulk parameter */ test_bulk_req_v1_t bulk_v1; /* bulk v1 parameter */ } tsi_u; -} sfw_test_instance_t; +}; /* XXX: trailing (PAGE_SIZE % sizeof(lnet_process_id_t)) bytes at the end of * pages are not used */ @@ -402,7 +402,7 @@ typedef struct sfw_test_unit { struct list_head tsu_list; /* chain on lst_test_instance */ lnet_process_id_t tsu_dest; /* id of dest node */ int tsu_loop; /* loop count of the test */ - sfw_test_instance_t *tsu_instance; /* pointer to test instance */ + struct sfw_test_instance *tsu_instance; /* pointer to test instance */ void *tsu_private; /* private data */ struct swi_workitem tsu_worker; /* workitem of the test unit */ } sfw_test_unit_t; -- cgit v0.10.2 From d875b0ce5f218bc9848a93a154b9315c9e5efaf7 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:38 -0400 Subject: staging: lustre: selftest: convert sfw_test_unit_t to proper struct Turn typedef sfw_test_unit_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index bb50ee1..bbb003d 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -52,7 +52,7 @@ static void brw_client_fini(struct sfw_test_instance *tsi) { struct srpc_bulk *bulk; - sfw_test_unit_t *tsu; + struct sfw_test_unit *tsu; LASSERT(tsi->tsi_is_client); @@ -75,7 +75,7 @@ brw_client_init(struct sfw_test_instance *tsi) int len; int opc; struct srpc_bulk *bulk; - sfw_test_unit_t *tsu; + struct sfw_test_unit *tsu; LASSERT(sn); LASSERT(tsi->tsi_is_client); @@ -254,7 +254,7 @@ brw_check_bulk(struct srpc_bulk *bk, int pattern, __u64 magic) } static int -brw_client_prep_rpc(sfw_test_unit_t *tsu, +brw_client_prep_rpc(struct sfw_test_unit *tsu, lnet_process_id_t dest, struct srpc_client_rpc **rpcpp) { struct srpc_bulk *bulk = tsu->tsu_private; @@ -313,7 +313,7 @@ brw_client_prep_rpc(sfw_test_unit_t *tsu, } static void -brw_client_done_rpc(sfw_test_unit_t *tsu, struct srpc_client_rpc *rpc) +brw_client_done_rpc(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc) { __u64 magic = BRW_MAGIC; struct sfw_test_instance *tsi = tsu->tsu_instance; diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index d783f08..31b5647 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -528,7 +528,7 @@ sfw_debug_session(srpc_debug_reqst_t *request, srpc_debug_reply_t *reply) static void sfw_test_rpc_fini(struct srpc_client_rpc *rpc) { - sfw_test_unit_t *tsu = rpc->crpc_priv; + struct sfw_test_unit *tsu = rpc->crpc_priv; struct sfw_test_instance *tsi = tsu->tsu_instance; /* Called with hold of tsi->tsi_lock */ @@ -617,7 +617,7 @@ static void sfw_destroy_test_instance(struct sfw_test_instance *tsi) { struct srpc_client_rpc *rpc; - sfw_test_unit_t *tsu; + struct sfw_test_unit *tsu; if (!tsi->tsi_is_client) goto clean; @@ -630,7 +630,7 @@ sfw_destroy_test_instance(struct sfw_test_instance *tsi) while (!list_empty(&tsi->tsi_units)) { tsu = list_entry(tsi->tsi_units.next, - sfw_test_unit_t, tsu_list); + struct sfw_test_unit, tsu_list); list_del(&tsu->tsu_list); LIBCFS_FREE(tsu, sizeof(*tsu)); } @@ -735,7 +735,7 @@ sfw_add_test_instance(struct sfw_batch *tsb, struct srpc_server_rpc *rpc) srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; struct srpc_bulk *bk = rpc->srpc_bulk; int ndest = req->tsr_ndest; - sfw_test_unit_t *tsu; + struct sfw_test_unit *tsu; struct sfw_test_instance *tsi; int i; int rc; @@ -795,7 +795,7 @@ sfw_add_test_instance(struct sfw_batch *tsb, struct srpc_server_rpc *rpc) sfw_unpack_id(id); for (j = 0; j < tsi->tsi_concur; j++) { - LIBCFS_ALLOC(tsu, sizeof(sfw_test_unit_t)); + LIBCFS_ALLOC(tsu, sizeof(struct sfw_test_unit)); if (!tsu) { rc = -ENOMEM; CERROR("Can't allocate tsu for %d\n", @@ -824,7 +824,7 @@ error: } static void -sfw_test_unit_done(sfw_test_unit_t *tsu) +sfw_test_unit_done(struct sfw_test_unit *tsu) { struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_batch *tsb = tsi->tsi_batch; @@ -868,7 +868,7 @@ sfw_test_unit_done(sfw_test_unit_t *tsu) static void sfw_test_rpc_done(struct srpc_client_rpc *rpc) { - sfw_test_unit_t *tsu = rpc->crpc_priv; + struct sfw_test_unit *tsu = rpc->crpc_priv; struct sfw_test_instance *tsi = tsu->tsu_instance; int done = 0; @@ -900,7 +900,7 @@ sfw_test_rpc_done(struct srpc_client_rpc *rpc) } int -sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer, +sfw_create_test_rpc(struct sfw_test_unit *tsu, lnet_process_id_t peer, unsigned features, int nblk, int blklen, struct srpc_client_rpc **rpcpp) { @@ -944,7 +944,7 @@ sfw_create_test_rpc(sfw_test_unit_t *tsu, lnet_process_id_t peer, static int sfw_run_test(struct swi_workitem *wi) { - sfw_test_unit_t *tsu = wi->swi_workitem.wi_data; + struct sfw_test_unit *tsu = wi->swi_workitem.wi_data; struct sfw_test_instance *tsi = tsu->tsu_instance; struct srpc_client_rpc *rpc = NULL; @@ -994,7 +994,7 @@ static int sfw_run_batch(struct sfw_batch *tsb) { struct swi_workitem *wi; - sfw_test_unit_t *tsu; + struct sfw_test_unit *tsu; struct sfw_test_instance *tsi; if (sfw_batch_active(tsb)) { diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c index 4e45428..c6f2caa 100644 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c @@ -86,7 +86,7 @@ ping_client_fini(struct sfw_test_instance *tsi) } static int -ping_client_prep_rpc(sfw_test_unit_t *tsu, lnet_process_id_t dest, +ping_client_prep_rpc(struct sfw_test_unit *tsu, lnet_process_id_t dest, struct srpc_client_rpc **rpc) { srpc_ping_reqst_t *req; @@ -118,7 +118,7 @@ ping_client_prep_rpc(sfw_test_unit_t *tsu, lnet_process_id_t dest, } static void -ping_client_done_rpc(sfw_test_unit_t *tsu, struct srpc_client_rpc *rpc) +ping_client_done_rpc(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc) { struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_session *sn = tsi->tsi_batch->bat_session; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index a95bdca..ae1a699 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -398,14 +398,14 @@ struct sfw_test_instance { #define SFW_MAX_NDESTS (LNET_MAX_IOV * SFW_ID_PER_PAGE) #define sfw_id_pages(n) (((n) + SFW_ID_PER_PAGE - 1) / SFW_ID_PER_PAGE) -typedef struct sfw_test_unit { +struct sfw_test_unit { struct list_head tsu_list; /* chain on lst_test_instance */ lnet_process_id_t tsu_dest; /* id of dest node */ int tsu_loop; /* loop count of the test */ struct sfw_test_instance *tsu_instance; /* pointer to test instance */ void *tsu_private; /* private data */ struct swi_workitem tsu_worker; /* workitem of the test unit */ -} sfw_test_unit_t; +}; typedef struct sfw_test_case { struct list_head tsc_list; /* chain on fw_tests */ @@ -417,7 +417,7 @@ struct srpc_client_rpc * sfw_create_rpc(lnet_process_id_t peer, int service, unsigned features, int nbulkiov, int bulklen, void (*done)(struct srpc_client_rpc *), void *priv); -int sfw_create_test_rpc(sfw_test_unit_t *tsu, +int sfw_create_test_rpc(struct sfw_test_unit *tsu, lnet_process_id_t peer, unsigned features, int nblk, int blklen, struct srpc_client_rpc **rpc); void sfw_abort_rpc(struct srpc_client_rpc *rpc); -- cgit v0.10.2 From d6615d143013575012adb0133ec22b07fcce510f Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:39 -0400 Subject: staging: lustre: selftest: convert sfw_test_case_t to proper struct Turn typedef sfw_test_case_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index 31b5647..84239c3 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -118,10 +118,10 @@ static struct smoketest_framework { int sfw_stop_batch(struct sfw_batch *tsb, int force); void sfw_destroy_session(struct sfw_session *sn); -static inline sfw_test_case_t * +static inline struct sfw_test_case * sfw_find_test_case(int id) { - sfw_test_case_t *tsc; + struct sfw_test_case *tsc; LASSERT(id <= SRPC_SERVICE_MAX_ID); LASSERT(id > SRPC_FRAMEWORK_SERVICE_MAX_ID); @@ -137,7 +137,7 @@ sfw_find_test_case(int id) static int sfw_register_test(struct srpc_service *service, struct sfw_test_client_ops *cliops) { - sfw_test_case_t *tsc; + struct sfw_test_case *tsc; if (sfw_find_test_case(service->sv_id)) { CERROR("Failed to register test %s (%d)\n", @@ -145,7 +145,7 @@ sfw_register_test(struct srpc_service *service, struct sfw_test_client_ops *clio return -EEXIST; } - LIBCFS_ALLOC(tsc, sizeof(sfw_test_case_t)); + LIBCFS_ALLOC(tsc, sizeof(struct sfw_test_case)); if (!tsc) return -ENOMEM; @@ -199,7 +199,7 @@ __must_hold(&sfw_data.fw_lock) struct sfw_session *sn = sfw_data.fw_session; int nactive = 0; struct sfw_batch *tsb; - sfw_test_case_t *tsc; + struct sfw_test_case *tsc; if (!sn) return; @@ -1629,7 +1629,7 @@ sfw_startup(void) int rc; int error; struct srpc_service *sv; - sfw_test_case_t *tsc; + struct sfw_test_case *tsc; if (session_timeout < 0) { CERROR("Session timeout must be non-negative: %d\n", @@ -1722,7 +1722,7 @@ void sfw_shutdown(void) { struct srpc_service *sv; - sfw_test_case_t *tsc; + struct sfw_test_case *tsc; int i; spin_lock(&sfw_data.fw_lock); @@ -1778,7 +1778,7 @@ sfw_shutdown(void) while (!list_empty(&sfw_data.fw_tests)) { tsc = list_entry(sfw_data.fw_tests.next, - sfw_test_case_t, tsc_list); + struct sfw_test_case, tsc_list); srpc_wait_service_shutdown(tsc->tsc_srv_service); diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index ae1a699..bc4c7ac 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -407,11 +407,11 @@ struct sfw_test_unit { struct swi_workitem tsu_worker; /* workitem of the test unit */ }; -typedef struct sfw_test_case { +struct sfw_test_case { struct list_head tsc_list; /* chain on fw_tests */ struct srpc_service *tsc_srv_service; /* test service */ struct sfw_test_client_ops *tsc_cli_ops; /* ops of test client */ -} sfw_test_case_t; +}; struct srpc_client_rpc * sfw_create_rpc(lnet_process_id_t peer, int service, -- cgit v0.10.2 From dc4f95fa5998e43df930d8b54807f78fe8cc344b Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:40 -0400 Subject: staging: lustre: selftest: convert lstcon_rpc_t to proper struct Turn typedef lstcon_rpc_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index 2affbee..3210f04 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -52,7 +52,7 @@ void lstcon_rpc_stat_reply(lstcon_rpc_trans_t *, srpc_msg_t *, static void lstcon_rpc_done(struct srpc_client_rpc *rpc) { - lstcon_rpc_t *crpc = (lstcon_rpc_t *)rpc->crpc_priv; + struct lstcon_rpc *crpc = (struct lstcon_rpc *)rpc->crpc_priv; LASSERT(crpc && rpc == crpc->crp_rpc); LASSERT(crpc->crp_posted && !crpc->crp_finished); @@ -91,7 +91,7 @@ lstcon_rpc_done(struct srpc_client_rpc *rpc) static int lstcon_rpc_init(lstcon_node_t *nd, int service, unsigned feats, - int bulk_npg, int bulk_len, int embedded, lstcon_rpc_t *crpc) + int bulk_npg, int bulk_len, int embedded, struct lstcon_rpc *crpc) { crpc->crp_rpc = sfw_create_rpc(nd->nd_id, service, feats, bulk_npg, bulk_len, @@ -116,15 +116,15 @@ lstcon_rpc_init(lstcon_node_t *nd, int service, unsigned feats, static int lstcon_rpc_prep(lstcon_node_t *nd, int service, unsigned feats, - int bulk_npg, int bulk_len, lstcon_rpc_t **crpcpp) + int bulk_npg, int bulk_len, struct lstcon_rpc **crpcpp) { - lstcon_rpc_t *crpc = NULL; + struct lstcon_rpc *crpc = NULL; int rc; spin_lock(&console_session.ses_rpc_lock); crpc = list_first_entry_or_null(&console_session.ses_rpc_freelist, - lstcon_rpc_t, crp_link); + struct lstcon_rpc, crp_link); if (crpc) list_del_init(&crpc->crp_link); @@ -148,7 +148,7 @@ lstcon_rpc_prep(lstcon_node_t *nd, int service, unsigned feats, } void -lstcon_rpc_put(lstcon_rpc_t *crpc) +lstcon_rpc_put(struct lstcon_rpc *crpc) { struct srpc_bulk *bulk = &crpc->crp_rpc->crpc_bulk; int i; @@ -183,7 +183,7 @@ lstcon_rpc_put(lstcon_rpc_t *crpc) } static void -lstcon_rpc_post(lstcon_rpc_t *crpc) +lstcon_rpc_post(struct lstcon_rpc *crpc) { lstcon_rpc_trans_t *trans = crpc->crp_trans; @@ -278,7 +278,7 @@ lstcon_rpc_trans_prep(struct list_head *translist, int transop, } void -lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, lstcon_rpc_t *crpc) +lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, struct lstcon_rpc *crpc) { list_add_tail(&crpc->crp_link, &trans->tas_rpcs_list); crpc->crp_trans = trans; @@ -288,7 +288,7 @@ void lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error) { struct srpc_client_rpc *rpc; - lstcon_rpc_t *crpc; + struct lstcon_rpc *crpc; lstcon_node_t *nd; list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) { @@ -338,7 +338,7 @@ lstcon_rpc_trans_check(lstcon_rpc_trans_t *trans) int lstcon_rpc_trans_postwait(lstcon_rpc_trans_t *trans, int timeout) { - lstcon_rpc_t *crpc; + struct lstcon_rpc *crpc; int rc; if (list_empty(&trans->tas_rpcs_list)) @@ -386,7 +386,7 @@ lstcon_rpc_trans_postwait(lstcon_rpc_trans_t *trans, int timeout) } static int -lstcon_rpc_get_reply(lstcon_rpc_t *crpc, srpc_msg_t **msgpp) +lstcon_rpc_get_reply(struct lstcon_rpc *crpc, srpc_msg_t **msgpp) { lstcon_node_t *nd = crpc->crp_node; struct srpc_client_rpc *rpc = crpc->crp_rpc; @@ -425,7 +425,7 @@ lstcon_rpc_get_reply(lstcon_rpc_t *crpc, srpc_msg_t **msgpp) void lstcon_rpc_trans_stat(lstcon_rpc_trans_t *trans, lstcon_trans_stat_t *stat) { - lstcon_rpc_t *crpc; + struct lstcon_rpc *crpc; srpc_msg_t *rep; int error; @@ -474,7 +474,7 @@ lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans, struct list_head __user *next; lstcon_rpc_ent_t *ent; srpc_generic_reply_t *rep; - lstcon_rpc_t *crpc; + struct lstcon_rpc *crpc; srpc_msg_t *msg; lstcon_node_t *nd; long dur; @@ -542,8 +542,8 @@ void lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans) { struct srpc_client_rpc *rpc; - lstcon_rpc_t *crpc; - lstcon_rpc_t *tmp; + struct lstcon_rpc *crpc; + struct lstcon_rpc *tmp; int count = 0; list_for_each_entry_safe(crpc, tmp, &trans->tas_rpcs_list, crp_link) { @@ -593,7 +593,7 @@ lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans) int lstcon_sesrpc_prep(lstcon_node_t *nd, int transop, - unsigned feats, lstcon_rpc_t **crpc) + unsigned feats, struct lstcon_rpc **crpc) { srpc_mksn_reqst_t *msrq; srpc_rmsn_reqst_t *rsrq; @@ -631,7 +631,7 @@ lstcon_sesrpc_prep(lstcon_node_t *nd, int transop, } int -lstcon_dbgrpc_prep(lstcon_node_t *nd, unsigned feats, lstcon_rpc_t **crpc) +lstcon_dbgrpc_prep(lstcon_node_t *nd, unsigned feats, struct lstcon_rpc **crpc) { srpc_debug_reqst_t *drq; int rc; @@ -650,7 +650,7 @@ lstcon_dbgrpc_prep(lstcon_node_t *nd, unsigned feats, lstcon_rpc_t **crpc) int lstcon_batrpc_prep(lstcon_node_t *nd, int transop, unsigned feats, - lstcon_tsb_hdr_t *tsb, lstcon_rpc_t **crpc) + lstcon_tsb_hdr_t *tsb, struct lstcon_rpc **crpc) { lstcon_batch_t *batch; srpc_batch_reqst_t *brq; @@ -682,7 +682,7 @@ lstcon_batrpc_prep(lstcon_node_t *nd, int transop, unsigned feats, } int -lstcon_statrpc_prep(lstcon_node_t *nd, unsigned feats, lstcon_rpc_t **crpc) +lstcon_statrpc_prep(lstcon_node_t *nd, unsigned feats, struct lstcon_rpc **crpc) { srpc_stat_reqst_t *srq; int rc; @@ -807,7 +807,7 @@ lstcon_bulkrpc_v1_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req) int lstcon_testrpc_prep(lstcon_node_t *nd, int transop, unsigned feats, - lstcon_test_t *test, lstcon_rpc_t **crpc) + lstcon_test_t *test, struct lstcon_rpc **crpc) { lstcon_group_t *sgrp = test->tes_src_grp; lstcon_group_t *dgrp = test->tes_dst_grp; @@ -1088,7 +1088,7 @@ lstcon_rpc_trans_ndlist(struct list_head *ndlist, lstcon_rpc_trans_t *trans; lstcon_ndlink_t *ndl; lstcon_node_t *nd; - lstcon_rpc_t *rpc; + struct lstcon_rpc *rpc; unsigned feats; int rc; @@ -1169,7 +1169,7 @@ lstcon_rpc_pinger(void *arg) { struct stt_timer *ptimer = (struct stt_timer *)arg; lstcon_rpc_trans_t *trans; - lstcon_rpc_t *crpc; + struct lstcon_rpc *crpc; srpc_msg_t *rep; srpc_debug_reqst_t *drq; lstcon_ndlink_t *ndl; @@ -1326,8 +1326,8 @@ void lstcon_rpc_cleanup_wait(void) { lstcon_rpc_trans_t *trans; - lstcon_rpc_t *crpc; - lstcon_rpc_t *temp; + struct lstcon_rpc *crpc; + struct lstcon_rpc *temp; struct list_head *pacer; struct list_head zlist; @@ -1369,7 +1369,7 @@ lstcon_rpc_cleanup_wait(void) list_for_each_entry_safe(crpc, temp, &zlist, crp_link) { list_del(&crpc->crp_link); - LIBCFS_FREE(crpc, sizeof(lstcon_rpc_t)); + LIBCFS_FREE(crpc, sizeof(struct lstcon_rpc)); } } diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.h b/drivers/staging/lustre/lnet/selftest/conrpc.h index 6ddf088..abd7bb0 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.h +++ b/drivers/staging/lustre/lnet/selftest/conrpc.h @@ -63,7 +63,7 @@ struct lstcon_tsb_hdr; struct lstcon_test; struct lstcon_node; -typedef struct lstcon_rpc { +struct lstcon_rpc { struct list_head crp_link; /* chain on rpc transaction */ struct srpc_client_rpc *crp_rpc; /* client rpc */ struct lstcon_node *crp_node; /* destination node */ @@ -76,7 +76,7 @@ typedef struct lstcon_rpc { unsigned int crp_embedded:1; int crp_status; /* console rpc errors */ unsigned long crp_stamp; /* replied time stamp */ -} lstcon_rpc_t; +}; typedef struct lstcon_rpc_trans { struct list_head tas_olink; /* link chain on owner list */ @@ -110,16 +110,16 @@ typedef int (*lstcon_rpc_readent_func_t)(int, srpc_msg_t *, lstcon_rpc_ent_t __user *); int lstcon_sesrpc_prep(struct lstcon_node *nd, int transop, - unsigned version, lstcon_rpc_t **crpc); + unsigned version, struct lstcon_rpc **crpc); int lstcon_dbgrpc_prep(struct lstcon_node *nd, - unsigned version, lstcon_rpc_t **crpc); + unsigned version, struct lstcon_rpc **crpc); int lstcon_batrpc_prep(struct lstcon_node *nd, int transop, unsigned version, - struct lstcon_tsb_hdr *tsb, lstcon_rpc_t **crpc); + struct lstcon_tsb_hdr *tsb, struct lstcon_rpc **crpc); int lstcon_testrpc_prep(struct lstcon_node *nd, int transop, unsigned version, - struct lstcon_test *test, lstcon_rpc_t **crpc); + struct lstcon_test *test, struct lstcon_rpc **crpc); int lstcon_statrpc_prep(struct lstcon_node *nd, unsigned version, - lstcon_rpc_t **crpc); -void lstcon_rpc_put(lstcon_rpc_t *crpc); + struct lstcon_rpc **crpc); +void lstcon_rpc_put(struct lstcon_rpc *crpc); int lstcon_rpc_trans_prep(struct list_head *translist, int transop, lstcon_rpc_trans_t **transpp); int lstcon_rpc_trans_ndlist(struct list_head *ndlist, @@ -133,7 +133,7 @@ int lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans, lstcon_rpc_readent_func_t readent); void lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error); void lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans); -void lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, lstcon_rpc_t *req); +void lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, struct lstcon_rpc *req); int lstcon_rpc_trans_postwait(lstcon_rpc_trans_t *trans, int timeout); int lstcon_rpc_pinger_start(void); void lstcon_rpc_pinger_stop(void); diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 1352310..23696e7 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -103,7 +103,7 @@ lstcon_node_find(lnet_process_id_t id, lstcon_node_t **ndpp, int create) ndl->ndl_node->nd_stamp = cfs_time_current(); ndl->ndl_node->nd_state = LST_NODE_UNKNOWN; ndl->ndl_node->nd_timeout = 0; - memset(&ndl->ndl_node->nd_ping, 0, sizeof(lstcon_rpc_t)); + memset(&ndl->ndl_node->nd_ping, 0, sizeof(struct lstcon_rpc)); /* * queued in global hash & list, no refcount is taken by -- cgit v0.10.2 From d8742c855b69b28bdb7119375549c561728e74b3 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:41 -0400 Subject: staging: lustre: selftest: convert lstcon_rpc_trans_t to proper struct Turn typedef lstcon_rpc_trans_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index 3210f04..a58ad8d 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -46,7 +46,7 @@ #include "conrpc.h" #include "console.h" -void lstcon_rpc_stat_reply(lstcon_rpc_trans_t *, srpc_msg_t *, +void lstcon_rpc_stat_reply(struct lstcon_rpc_trans *, srpc_msg_t *, lstcon_node_t *, lstcon_trans_stat_t *); static void @@ -185,7 +185,7 @@ lstcon_rpc_put(struct lstcon_rpc *crpc) static void lstcon_rpc_post(struct lstcon_rpc *crpc) { - lstcon_rpc_trans_t *trans = crpc->crp_trans; + struct lstcon_rpc_trans *trans = crpc->crp_trans; LASSERT(trans); @@ -236,9 +236,9 @@ lstcon_rpc_trans_name(int transop) int lstcon_rpc_trans_prep(struct list_head *translist, int transop, - lstcon_rpc_trans_t **transpp) + struct lstcon_rpc_trans **transpp) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; if (translist) { list_for_each_entry(trans, translist, tas_link) { @@ -278,14 +278,14 @@ lstcon_rpc_trans_prep(struct list_head *translist, int transop, } void -lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, struct lstcon_rpc *crpc) +lstcon_rpc_trans_addreq(struct lstcon_rpc_trans *trans, struct lstcon_rpc *crpc) { list_add_tail(&crpc->crp_link, &trans->tas_rpcs_list); crpc->crp_trans = trans; } void -lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error) +lstcon_rpc_trans_abort(struct lstcon_rpc_trans *trans, int error) { struct srpc_client_rpc *rpc; struct lstcon_rpc *crpc; @@ -326,7 +326,7 @@ lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error) } static int -lstcon_rpc_trans_check(lstcon_rpc_trans_t *trans) +lstcon_rpc_trans_check(struct lstcon_rpc_trans *trans) { if (console_session.ses_shutdown && !list_empty(&trans->tas_olink)) /* Not an end session RPC */ @@ -336,7 +336,7 @@ lstcon_rpc_trans_check(lstcon_rpc_trans_t *trans) } int -lstcon_rpc_trans_postwait(lstcon_rpc_trans_t *trans, int timeout) +lstcon_rpc_trans_postwait(struct lstcon_rpc_trans *trans, int timeout) { struct lstcon_rpc *crpc; int rc; @@ -423,7 +423,7 @@ lstcon_rpc_get_reply(struct lstcon_rpc *crpc, srpc_msg_t **msgpp) } void -lstcon_rpc_trans_stat(lstcon_rpc_trans_t *trans, lstcon_trans_stat_t *stat) +lstcon_rpc_trans_stat(struct lstcon_rpc_trans *trans, lstcon_trans_stat_t *stat) { struct lstcon_rpc *crpc; srpc_msg_t *rep; @@ -466,7 +466,7 @@ lstcon_rpc_trans_stat(lstcon_rpc_trans_t *trans, lstcon_trans_stat_t *stat) } int -lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans, +lstcon_rpc_trans_interpreter(struct lstcon_rpc_trans *trans, struct list_head __user *head_up, lstcon_rpc_readent_func_t readent) { @@ -539,7 +539,7 @@ lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans, } void -lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans) +lstcon_rpc_trans_destroy(struct lstcon_rpc_trans *trans) { struct srpc_client_rpc *rpc; struct lstcon_rpc *crpc; @@ -915,7 +915,7 @@ lstcon_testrpc_prep(lstcon_node_t *nd, int transop, unsigned feats, } static int -lstcon_sesnew_stat_reply(lstcon_rpc_trans_t *trans, +lstcon_sesnew_stat_reply(struct lstcon_rpc_trans *trans, lstcon_node_t *nd, srpc_msg_t *reply) { srpc_mksn_reply_t *mksn_rep = &reply->msg_body.mksn_reply; @@ -962,7 +962,7 @@ lstcon_sesnew_stat_reply(lstcon_rpc_trans_t *trans, } void -lstcon_rpc_stat_reply(lstcon_rpc_trans_t *trans, srpc_msg_t *msg, +lstcon_rpc_stat_reply(struct lstcon_rpc_trans *trans, srpc_msg_t *msg, lstcon_node_t *nd, lstcon_trans_stat_t *stat) { srpc_rmsn_reply_t *rmsn_rep; @@ -1083,9 +1083,9 @@ int lstcon_rpc_trans_ndlist(struct list_head *ndlist, struct list_head *translist, int transop, void *arg, lstcon_rpc_cond_func_t condition, - lstcon_rpc_trans_t **transpp) + struct lstcon_rpc_trans **transpp) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; lstcon_ndlink_t *ndl; lstcon_node_t *nd; struct lstcon_rpc *rpc; @@ -1168,7 +1168,7 @@ static void lstcon_rpc_pinger(void *arg) { struct stt_timer *ptimer = (struct stt_timer *)arg; - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; struct lstcon_rpc *crpc; srpc_msg_t *rep; srpc_debug_reqst_t *drq; @@ -1325,7 +1325,7 @@ lstcon_rpc_pinger_stop(void) void lstcon_rpc_cleanup_wait(void) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; struct lstcon_rpc *crpc; struct lstcon_rpc *temp; struct list_head *pacer; @@ -1337,7 +1337,7 @@ lstcon_rpc_cleanup_wait(void) while (!list_empty(&console_session.ses_trans_list)) { list_for_each(pacer, &console_session.ses_trans_list) { - trans = list_entry(pacer, lstcon_rpc_trans_t, + trans = list_entry(pacer, struct lstcon_rpc_trans, tas_link); CDEBUG(D_NET, "Session closed, wakeup transaction %s\n", diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.h b/drivers/staging/lustre/lnet/selftest/conrpc.h index abd7bb0..7281abd 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.h +++ b/drivers/staging/lustre/lnet/selftest/conrpc.h @@ -78,7 +78,7 @@ struct lstcon_rpc { unsigned long crp_stamp; /* replied time stamp */ }; -typedef struct lstcon_rpc_trans { +struct lstcon_rpc_trans { struct list_head tas_olink; /* link chain on owner list */ struct list_head tas_link; /* link chain on global list */ int tas_opc; /* operation code of transaction */ @@ -87,7 +87,7 @@ typedef struct lstcon_rpc_trans { wait_queue_head_t tas_waitq; /* wait queue head */ atomic_t tas_remaining; /* # of un-scheduled rpcs */ struct list_head tas_rpcs_list; /* queued requests */ -} lstcon_rpc_trans_t; +}; #define LST_TRANS_PRIVATE 0x1000 @@ -121,20 +121,20 @@ int lstcon_statrpc_prep(struct lstcon_node *nd, unsigned version, struct lstcon_rpc **crpc); void lstcon_rpc_put(struct lstcon_rpc *crpc); int lstcon_rpc_trans_prep(struct list_head *translist, - int transop, lstcon_rpc_trans_t **transpp); + int transop, struct lstcon_rpc_trans **transpp); int lstcon_rpc_trans_ndlist(struct list_head *ndlist, struct list_head *translist, int transop, void *arg, lstcon_rpc_cond_func_t condition, - lstcon_rpc_trans_t **transpp); -void lstcon_rpc_trans_stat(lstcon_rpc_trans_t *trans, + struct lstcon_rpc_trans **transpp); +void lstcon_rpc_trans_stat(struct lstcon_rpc_trans *trans, lstcon_trans_stat_t *stat); -int lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans, +int lstcon_rpc_trans_interpreter(struct lstcon_rpc_trans *trans, struct list_head __user *head_up, lstcon_rpc_readent_func_t readent); -void lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error); -void lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans); -void lstcon_rpc_trans_addreq(lstcon_rpc_trans_t *trans, struct lstcon_rpc *req); -int lstcon_rpc_trans_postwait(lstcon_rpc_trans_t *trans, int timeout); +void lstcon_rpc_trans_abort(struct lstcon_rpc_trans *trans, int error); +void lstcon_rpc_trans_destroy(struct lstcon_rpc_trans *trans); +void lstcon_rpc_trans_addreq(struct lstcon_rpc_trans *trans, struct lstcon_rpc *req); +int lstcon_rpc_trans_postwait(struct lstcon_rpc_trans *trans, int timeout); int lstcon_rpc_pinger_start(void); void lstcon_rpc_pinger_stop(void); void lstcon_rpc_cleanup_wait(void); diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 23696e7..08de007 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -403,7 +403,7 @@ lstcon_group_nodes_add(lstcon_group_t *grp, int count, lnet_process_id_t __user *ids_up, unsigned *featp, struct list_head __user *result_up) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; lstcon_ndlink_t *ndl; lstcon_group_t *tmp; lnet_process_id_t id; @@ -470,7 +470,7 @@ lstcon_group_nodes_remove(lstcon_group_t *grp, int count, lnet_process_id_t __user *ids_up, struct list_head __user *result_up) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; lstcon_ndlink_t *ndl; lstcon_group_t *tmp; lnet_process_id_t id; @@ -578,7 +578,7 @@ lstcon_nodes_add(char *name, int count, lnet_process_id_t __user *ids_up, int lstcon_group_del(char *name) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; lstcon_group_t *grp; int rc; @@ -683,7 +683,7 @@ lstcon_nodes_remove(char *name, int count, lnet_process_id_t __user *ids_up, int lstcon_group_refresh(char *name, struct list_head __user *result_up) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; lstcon_group_t *grp; int rc; @@ -1023,7 +1023,7 @@ static int lstcon_batch_op(lstcon_batch_t *bat, int transop, struct list_head __user *result_up) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; int rc; rc = lstcon_rpc_trans_ndlist(&bat->bat_cli_list, @@ -1187,7 +1187,7 @@ lstcon_testrpc_condition(int transop, lstcon_node_t *nd, void *arg) static int lstcon_test_nodes_add(lstcon_test_t *test, struct list_head __user *result_up) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; lstcon_group_t *grp; int transop; int rc; @@ -1403,7 +1403,7 @@ int lstcon_test_batch_query(char *name, int testidx, int client, int timeout, struct list_head __user *result_up) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; struct list_head *translist; struct list_head *ndlist; lstcon_tsb_hdr_t *hdr; @@ -1490,7 +1490,7 @@ lstcon_ndlist_stat(struct list_head *ndlist, int timeout, struct list_head __user *result_up) { struct list_head head; - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; int rc; INIT_LIST_HEAD(&head); @@ -1580,7 +1580,7 @@ lstcon_debug_ndlist(struct list_head *ndlist, struct list_head *translist, int timeout, struct list_head __user *result_up) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; int rc; rc = lstcon_rpc_trans_ndlist(ndlist, translist, LST_TRANS_SESQRY, @@ -1812,7 +1812,7 @@ lstcon_session_info(lst_sid_t __user *sid_up, int __user *key_up, int lstcon_session_end(void) { - lstcon_rpc_trans_t *trans; + struct lstcon_rpc_trans *trans; lstcon_group_t *grp; lstcon_batch_t *bat; int rc = 0; diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h index 554f582..c573b56 100644 --- a/drivers/staging/lustre/lnet/selftest/console.h +++ b/drivers/staging/lustre/lnet/selftest/console.h @@ -152,7 +152,7 @@ struct lstcon_session { unsigned ses_expired:1; /* console is timedout */ __u64 ses_id_cookie; /* batch id cookie */ char ses_name[LST_NAME_SIZE];/* session name */ - lstcon_rpc_trans_t *ses_ping; /* session pinger */ + struct lstcon_rpc_trans *ses_ping; /* session pinger */ struct stt_timer ses_ping_timer; /* timer for pinger */ lstcon_trans_stat_t ses_trans_stat; /* transaction stats */ -- cgit v0.10.2 From f1e34162fe284dd414c2a70f5814867b0f3c2b67 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:42 -0400 Subject: staging: lustre: selftest: convert lstcon_node_t to proper struct Turn typedef lstcon_node_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index a58ad8d..cea87dc 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -47,7 +47,7 @@ #include "console.h" void lstcon_rpc_stat_reply(struct lstcon_rpc_trans *, srpc_msg_t *, - lstcon_node_t *, lstcon_trans_stat_t *); + struct lstcon_node *, lstcon_trans_stat_t *); static void lstcon_rpc_done(struct srpc_client_rpc *rpc) @@ -90,7 +90,7 @@ lstcon_rpc_done(struct srpc_client_rpc *rpc) } static int -lstcon_rpc_init(lstcon_node_t *nd, int service, unsigned feats, +lstcon_rpc_init(struct lstcon_node *nd, int service, unsigned feats, int bulk_npg, int bulk_len, int embedded, struct lstcon_rpc *crpc) { crpc->crp_rpc = sfw_create_rpc(nd->nd_id, service, @@ -115,7 +115,7 @@ lstcon_rpc_init(lstcon_node_t *nd, int service, unsigned feats, } static int -lstcon_rpc_prep(lstcon_node_t *nd, int service, unsigned feats, +lstcon_rpc_prep(struct lstcon_node *nd, int service, unsigned feats, int bulk_npg, int bulk_len, struct lstcon_rpc **crpcpp) { struct lstcon_rpc *crpc = NULL; @@ -289,7 +289,7 @@ lstcon_rpc_trans_abort(struct lstcon_rpc_trans *trans, int error) { struct srpc_client_rpc *rpc; struct lstcon_rpc *crpc; - lstcon_node_t *nd; + struct lstcon_node *nd; list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) { rpc = crpc->crp_rpc; @@ -388,7 +388,7 @@ lstcon_rpc_trans_postwait(struct lstcon_rpc_trans *trans, int timeout) static int lstcon_rpc_get_reply(struct lstcon_rpc *crpc, srpc_msg_t **msgpp) { - lstcon_node_t *nd = crpc->crp_node; + struct lstcon_node *nd = crpc->crp_node; struct srpc_client_rpc *rpc = crpc->crp_rpc; srpc_generic_reply_t *rep; @@ -476,7 +476,7 @@ lstcon_rpc_trans_interpreter(struct lstcon_rpc_trans *trans, srpc_generic_reply_t *rep; struct lstcon_rpc *crpc; srpc_msg_t *msg; - lstcon_node_t *nd; + struct lstcon_node *nd; long dur; struct timeval tv; int error; @@ -592,7 +592,7 @@ lstcon_rpc_trans_destroy(struct lstcon_rpc_trans *trans) } int -lstcon_sesrpc_prep(lstcon_node_t *nd, int transop, +lstcon_sesrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, struct lstcon_rpc **crpc) { srpc_mksn_reqst_t *msrq; @@ -631,7 +631,7 @@ lstcon_sesrpc_prep(lstcon_node_t *nd, int transop, } int -lstcon_dbgrpc_prep(lstcon_node_t *nd, unsigned feats, struct lstcon_rpc **crpc) +lstcon_dbgrpc_prep(struct lstcon_node *nd, unsigned feats, struct lstcon_rpc **crpc) { srpc_debug_reqst_t *drq; int rc; @@ -649,7 +649,7 @@ lstcon_dbgrpc_prep(lstcon_node_t *nd, unsigned feats, struct lstcon_rpc **crpc) } int -lstcon_batrpc_prep(lstcon_node_t *nd, int transop, unsigned feats, +lstcon_batrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, lstcon_tsb_hdr_t *tsb, struct lstcon_rpc **crpc) { lstcon_batch_t *batch; @@ -682,7 +682,7 @@ lstcon_batrpc_prep(lstcon_node_t *nd, int transop, unsigned feats, } int -lstcon_statrpc_prep(lstcon_node_t *nd, unsigned feats, struct lstcon_rpc **crpc) +lstcon_statrpc_prep(struct lstcon_node *nd, unsigned feats, struct lstcon_rpc **crpc) { srpc_stat_reqst_t *srq; int rc; @@ -720,7 +720,7 @@ lstcon_dstnodes_prep(lstcon_group_t *grp, int idx, { lnet_process_id_packed_t *pid; lstcon_ndlink_t *ndl; - lstcon_node_t *nd; + struct lstcon_node *nd; int start; int end; int i = 0; @@ -806,7 +806,7 @@ lstcon_bulkrpc_v1_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req) } int -lstcon_testrpc_prep(lstcon_node_t *nd, int transop, unsigned feats, +lstcon_testrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, lstcon_test_t *test, struct lstcon_rpc **crpc) { lstcon_group_t *sgrp = test->tes_src_grp; @@ -916,7 +916,7 @@ lstcon_testrpc_prep(lstcon_node_t *nd, int transop, unsigned feats, static int lstcon_sesnew_stat_reply(struct lstcon_rpc_trans *trans, - lstcon_node_t *nd, srpc_msg_t *reply) + struct lstcon_node *nd, srpc_msg_t *reply) { srpc_mksn_reply_t *mksn_rep = &reply->msg_body.mksn_reply; int status = mksn_rep->mksn_status; @@ -963,7 +963,7 @@ lstcon_sesnew_stat_reply(struct lstcon_rpc_trans *trans, void lstcon_rpc_stat_reply(struct lstcon_rpc_trans *trans, srpc_msg_t *msg, - lstcon_node_t *nd, lstcon_trans_stat_t *stat) + struct lstcon_node *nd, lstcon_trans_stat_t *stat) { srpc_rmsn_reply_t *rmsn_rep; srpc_debug_reply_t *dbg_rep; @@ -1087,7 +1087,7 @@ lstcon_rpc_trans_ndlist(struct list_head *ndlist, { struct lstcon_rpc_trans *trans; lstcon_ndlink_t *ndl; - lstcon_node_t *nd; + struct lstcon_node *nd; struct lstcon_rpc *rpc; unsigned feats; int rc; @@ -1173,7 +1173,7 @@ lstcon_rpc_pinger(void *arg) srpc_msg_t *rep; srpc_debug_reqst_t *drq; lstcon_ndlink_t *ndl; - lstcon_node_t *nd; + struct lstcon_node *nd; int intv; int count = 0; int rc; diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 08de007..32364b4 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -61,7 +61,7 @@ do { \ struct lstcon_session console_session; static void -lstcon_node_get(lstcon_node_t *nd) +lstcon_node_get(struct lstcon_node *nd) { LASSERT(nd->nd_ref >= 1); @@ -69,7 +69,7 @@ lstcon_node_get(lstcon_node_t *nd) } static int -lstcon_node_find(lnet_process_id_t id, lstcon_node_t **ndpp, int create) +lstcon_node_find(lnet_process_id_t id, struct lstcon_node **ndpp, int create) { lstcon_ndlink_t *ndl; unsigned int idx = LNET_NIDADDR(id.nid) % LST_GLOBAL_HASHSIZE; @@ -90,7 +90,7 @@ lstcon_node_find(lnet_process_id_t id, lstcon_node_t **ndpp, int create) if (!create) return -ENOENT; - LIBCFS_ALLOC(*ndpp, sizeof(lstcon_node_t) + sizeof(lstcon_ndlink_t)); + LIBCFS_ALLOC(*ndpp, sizeof(struct lstcon_node) + sizeof(lstcon_ndlink_t)); if (!*ndpp) return -ENOMEM; @@ -117,7 +117,7 @@ lstcon_node_find(lnet_process_id_t id, lstcon_node_t **ndpp, int create) } static void -lstcon_node_put(lstcon_node_t *nd) +lstcon_node_put(struct lstcon_node *nd) { lstcon_ndlink_t *ndl; @@ -135,7 +135,7 @@ lstcon_node_put(lstcon_node_t *nd) list_del(&ndl->ndl_link); list_del(&ndl->ndl_hlink); - LIBCFS_FREE(nd, sizeof(lstcon_node_t) + sizeof(lstcon_ndlink_t)); + LIBCFS_FREE(nd, sizeof(struct lstcon_node) + sizeof(lstcon_ndlink_t)); } static int @@ -144,7 +144,7 @@ lstcon_ndlink_find(struct list_head *hash, { unsigned int idx = LNET_NIDADDR(id.nid) % LST_NODE_HASHSIZE; lstcon_ndlink_t *ndl; - lstcon_node_t *nd; + struct lstcon_node *nd; int rc; if (id.nid == LNET_NID_ANY) @@ -341,7 +341,7 @@ lstcon_group_move(lstcon_group_t *old, lstcon_group_t *new) } static int -lstcon_sesrpc_condition(int transop, lstcon_node_t *nd, void *arg) +lstcon_sesrpc_condition(int transop, struct lstcon_node *nd, void *arg) { lstcon_group_t *grp = (lstcon_group_t *)arg; @@ -745,7 +745,7 @@ lstcon_nodes_getent(struct list_head *head, int *index_p, int *count_p, lstcon_node_ent_t __user *dents_up) { lstcon_ndlink_t *ndl; - lstcon_node_t *nd; + struct lstcon_node *nd; int count = 0; int index = 0; @@ -998,7 +998,7 @@ lstcon_batch_info(char *name, lstcon_test_batch_ent_t __user *ent_up, } static int -lstcon_batrpc_condition(int transop, lstcon_node_t *nd, void *arg) +lstcon_batrpc_condition(int transop, struct lstcon_node *nd, void *arg) { switch (transop) { case LST_TRANS_TSBRUN: @@ -1141,7 +1141,7 @@ lstcon_batch_destroy(lstcon_batch_t *bat) } static int -lstcon_testrpc_condition(int transop, lstcon_node_t *nd, void *arg) +lstcon_testrpc_condition(int transop, struct lstcon_node *nd, void *arg) { lstcon_test_t *test; lstcon_batch_t *batch; diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h index c573b56..7c37967 100644 --- a/drivers/staging/lustre/lnet/selftest/console.h +++ b/drivers/staging/lustre/lnet/selftest/console.h @@ -50,19 +50,20 @@ #include "selftest.h" #include "conrpc.h" -typedef struct lstcon_node { +/* node descriptor */ +struct lstcon_node { lnet_process_id_t nd_id; /* id of the node */ int nd_ref; /* reference count */ int nd_state; /* state of the node */ int nd_timeout; /* session timeout */ unsigned long nd_stamp; /* timestamp of last replied RPC */ struct lstcon_rpc nd_ping; /* ping rpc */ -} lstcon_node_t; /* node descriptor */ +}; typedef struct { struct list_head ndl_link; /* chain on list */ struct list_head ndl_hlink; /* chain on hash */ - lstcon_node_t *ndl_node; /* pointer to node */ + struct lstcon_node *ndl_node; /* pointer to node */ } lstcon_ndlink_t; /* node link descriptor */ typedef struct { @@ -99,7 +100,7 @@ typedef struct { */ struct list_head bat_trans_list; /* list head of transaction */ struct list_head bat_cli_list; /* list head of client nodes - * (lstcon_node_t) */ + * (struct lstcon_node) */ struct list_head *bat_cli_hash; /* hash table of client nodes */ struct list_head bat_srv_list; /* list head of server nodes */ struct list_head *bat_srv_hash; /* hash table of server nodes */ -- cgit v0.10.2 From e00f978ef5821c0c607a3002babd3a872149d2d4 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:43 -0400 Subject: staging: lustre: selftest: convert lstcon_ndlink_t to proper struct Turn typedef lstcon_ndlink_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index cea87dc..6967d5f 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -719,7 +719,7 @@ lstcon_dstnodes_prep(lstcon_group_t *grp, int idx, int dist, int span, int nkiov, lnet_kiov_t *kiov) { lnet_process_id_packed_t *pid; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; struct lstcon_node *nd; int start; int end; @@ -1086,7 +1086,7 @@ lstcon_rpc_trans_ndlist(struct list_head *ndlist, struct lstcon_rpc_trans **transpp) { struct lstcon_rpc_trans *trans; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; struct lstcon_node *nd; struct lstcon_rpc *rpc; unsigned feats; @@ -1172,7 +1172,7 @@ lstcon_rpc_pinger(void *arg) struct lstcon_rpc *crpc; srpc_msg_t *rep; srpc_debug_reqst_t *drq; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; struct lstcon_node *nd; int intv; int count = 0; diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 32364b4..e068c13 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -71,7 +71,7 @@ lstcon_node_get(struct lstcon_node *nd) static int lstcon_node_find(lnet_process_id_t id, struct lstcon_node **ndpp, int create) { - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; unsigned int idx = LNET_NIDADDR(id.nid) % LST_GLOBAL_HASHSIZE; LASSERT(id.nid != LNET_NID_ANY); @@ -90,11 +90,11 @@ lstcon_node_find(lnet_process_id_t id, struct lstcon_node **ndpp, int create) if (!create) return -ENOENT; - LIBCFS_ALLOC(*ndpp, sizeof(struct lstcon_node) + sizeof(lstcon_ndlink_t)); + LIBCFS_ALLOC(*ndpp, sizeof(struct lstcon_node) + sizeof(struct lstcon_ndlink)); if (!*ndpp) return -ENOMEM; - ndl = (lstcon_ndlink_t *)(*ndpp + 1); + ndl = (struct lstcon_ndlink *)(*ndpp + 1); ndl->ndl_node = *ndpp; @@ -119,14 +119,14 @@ lstcon_node_find(lnet_process_id_t id, struct lstcon_node **ndpp, int create) static void lstcon_node_put(struct lstcon_node *nd) { - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; LASSERT(nd->nd_ref > 0); if (--nd->nd_ref > 0) return; - ndl = (lstcon_ndlink_t *)(nd + 1); + ndl = (struct lstcon_ndlink *)(nd + 1); LASSERT(!list_empty(&ndl->ndl_link)); LASSERT(!list_empty(&ndl->ndl_hlink)); @@ -135,15 +135,15 @@ lstcon_node_put(struct lstcon_node *nd) list_del(&ndl->ndl_link); list_del(&ndl->ndl_hlink); - LIBCFS_FREE(nd, sizeof(struct lstcon_node) + sizeof(lstcon_ndlink_t)); + LIBCFS_FREE(nd, sizeof(struct lstcon_node) + sizeof(struct lstcon_ndlink)); } static int lstcon_ndlink_find(struct list_head *hash, - lnet_process_id_t id, lstcon_ndlink_t **ndlpp, int create) + lnet_process_id_t id, struct lstcon_ndlink **ndlpp, int create) { unsigned int idx = LNET_NIDADDR(id.nid) % LST_NODE_HASHSIZE; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; struct lstcon_node *nd; int rc; @@ -168,7 +168,7 @@ lstcon_ndlink_find(struct list_head *hash, if (rc) return rc; - LIBCFS_ALLOC(ndl, sizeof(lstcon_ndlink_t)); + LIBCFS_ALLOC(ndl, sizeof(struct lstcon_ndlink)); if (!ndl) { lstcon_node_put(nd); return -ENOMEM; @@ -184,7 +184,7 @@ lstcon_ndlink_find(struct list_head *hash, } static void -lstcon_ndlink_release(lstcon_ndlink_t *ndl) +lstcon_ndlink_release(struct lstcon_ndlink *ndl) { LASSERT(list_empty(&ndl->ndl_link)); LASSERT(!list_empty(&ndl->ndl_hlink)); @@ -234,13 +234,13 @@ lstcon_group_addref(lstcon_group_t *grp) grp->grp_ref++; } -static void lstcon_group_ndlink_release(lstcon_group_t *, lstcon_ndlink_t *); +static void lstcon_group_ndlink_release(lstcon_group_t *, struct lstcon_ndlink *); static void lstcon_group_drain(lstcon_group_t *grp, int keep) { - lstcon_ndlink_t *ndl; - lstcon_ndlink_t *tmp; + struct lstcon_ndlink *ndl; + struct lstcon_ndlink *tmp; list_for_each_entry_safe(ndl, tmp, &grp->grp_ndl_list, ndl_link) { if (!(ndl->ndl_node->nd_state & keep)) @@ -287,7 +287,7 @@ lstcon_group_find(const char *name, lstcon_group_t **grpp) static int lstcon_group_ndlink_find(lstcon_group_t *grp, lnet_process_id_t id, - lstcon_ndlink_t **ndlpp, int create) + struct lstcon_ndlink **ndlpp, int create) { int rc; @@ -305,7 +305,7 @@ lstcon_group_ndlink_find(lstcon_group_t *grp, lnet_process_id_t id, } static void -lstcon_group_ndlink_release(lstcon_group_t *grp, lstcon_ndlink_t *ndl) +lstcon_group_ndlink_release(lstcon_group_t *grp, struct lstcon_ndlink *ndl) { list_del_init(&ndl->ndl_link); lstcon_ndlink_release(ndl); @@ -314,7 +314,7 @@ lstcon_group_ndlink_release(lstcon_group_t *grp, lstcon_ndlink_t *ndl) static void lstcon_group_ndlink_move(lstcon_group_t *old, - lstcon_group_t *new, lstcon_ndlink_t *ndl) + lstcon_group_t *new, struct lstcon_ndlink *ndl) { unsigned int idx = LNET_NIDADDR(ndl->ndl_node->nd_id.nid) % LST_NODE_HASHSIZE; @@ -331,11 +331,11 @@ lstcon_group_ndlink_move(lstcon_group_t *old, static void lstcon_group_move(lstcon_group_t *old, lstcon_group_t *new) { - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; while (!list_empty(&old->grp_ndl_list)) { ndl = list_entry(old->grp_ndl_list.next, - lstcon_ndlink_t, ndl_link); + struct lstcon_ndlink, ndl_link); lstcon_group_ndlink_move(old, new, ndl); } } @@ -404,7 +404,7 @@ lstcon_group_nodes_add(lstcon_group_t *grp, unsigned *featp, struct list_head __user *result_up) { struct lstcon_rpc_trans *trans; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; lstcon_group_t *tmp; lnet_process_id_t id; int i; @@ -471,7 +471,7 @@ lstcon_group_nodes_remove(lstcon_group_t *grp, struct list_head __user *result_up) { struct lstcon_rpc_trans *trans; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; lstcon_group_t *tmp; lnet_process_id_t id; int rc; @@ -744,7 +744,7 @@ static int lstcon_nodes_getent(struct list_head *head, int *index_p, int *count_p, lstcon_node_ent_t __user *dents_up) { - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; struct lstcon_node *nd; int count = 0; int index = 0; @@ -787,7 +787,7 @@ lstcon_group_info(char *name, lstcon_ndlist_ent_t __user *gents_p, { lstcon_ndlist_ent_t *gentp; lstcon_group_t *grp; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; int rc; rc = lstcon_group_find(name, &grp); @@ -936,7 +936,7 @@ lstcon_batch_info(char *name, lstcon_test_batch_ent_t __user *ent_up, struct list_head *srvlst; lstcon_test_t *test = NULL; lstcon_batch_t *bat; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; int rc; rc = lstcon_batch_find(name, &bat); @@ -1090,7 +1090,7 @@ lstcon_batch_stop(char *name, int force, struct list_head __user *result_up) static void lstcon_batch_destroy(lstcon_batch_t *bat) { - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; lstcon_test_t *test; int i; @@ -1114,7 +1114,7 @@ lstcon_batch_destroy(lstcon_batch_t *bat) while (!list_empty(&bat->bat_cli_list)) { ndl = list_entry(bat->bat_cli_list.next, - lstcon_ndlink_t, ndl_link); + struct lstcon_ndlink, ndl_link); list_del_init(&ndl->ndl_link); lstcon_ndlink_release(ndl); @@ -1122,7 +1122,7 @@ lstcon_batch_destroy(lstcon_batch_t *bat) while (!list_empty(&bat->bat_srv_list)) { ndl = list_entry(bat->bat_srv_list.next, - lstcon_ndlink_t, ndl_link); + struct lstcon_ndlink, ndl_link); list_del_init(&ndl->ndl_link); lstcon_ndlink_release(ndl); @@ -1145,7 +1145,7 @@ lstcon_testrpc_condition(int transop, struct lstcon_node *nd, void *arg) { lstcon_test_t *test; lstcon_batch_t *batch; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; struct list_head *hash; struct list_head *head; @@ -1258,7 +1258,7 @@ static int lstcon_verify_group(const char *name, lstcon_group_t **grp) { int rc; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; rc = lstcon_group_find(name, grp); if (rc) { @@ -1535,7 +1535,7 @@ int lstcon_nodes_stat(int count, lnet_process_id_t __user *ids_up, int timeout, struct list_head __user *result_up) { - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; lstcon_group_t *tmp; lnet_process_id_t id; int i; @@ -1648,7 +1648,7 @@ lstcon_nodes_debug(int timeout, struct list_head __user *result_up) { lnet_process_id_t id; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; lstcon_group_t *grp; int i; int rc; @@ -1781,7 +1781,7 @@ lstcon_session_info(lst_sid_t __user *sid_up, int __user *key_up, char __user *name_up, int len) { lstcon_ndlist_ent_t *entp; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; int rc = 0; if (console_session.ses_state != LST_SESSION_ACTIVE) @@ -1910,7 +1910,7 @@ lstcon_acceptor_handle(struct srpc_server_rpc *rpc) srpc_join_reqst_t *jreq = &req->msg_body.join_reqst; srpc_join_reply_t *jrep = &rep->msg_body.join_reply; lstcon_group_t *grp = NULL; - lstcon_ndlink_t *ndl; + struct lstcon_ndlink *ndl; int rc = 0; sfw_unpack_message(req); diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h index 7c37967..dd9674d 100644 --- a/drivers/staging/lustre/lnet/selftest/console.h +++ b/drivers/staging/lustre/lnet/selftest/console.h @@ -60,11 +60,12 @@ struct lstcon_node { struct lstcon_rpc nd_ping; /* ping rpc */ }; -typedef struct { +/* node link descriptor */ +struct lstcon_ndlink { struct list_head ndl_link; /* chain on list */ struct list_head ndl_hlink; /* chain on hash */ - struct lstcon_node *ndl_node; /* pointer to node */ -} lstcon_ndlink_t; /* node link descriptor */ + struct lstcon_node *ndl_node; /* pointer to node */ +}; typedef struct { struct list_head grp_link; /* chain on global group list -- cgit v0.10.2 From 6bd88c7ad462ed00d63e508832bad5621d091696 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:44 -0400 Subject: staging: lustre: selftest: convert lstcon_group_t to proper struct Turn typedef lstcon_group_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index 6967d5f..4272a61 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -715,7 +715,7 @@ lstcon_next_id(int idx, int nkiov, lnet_kiov_t *kiov) } static int -lstcon_dstnodes_prep(lstcon_group_t *grp, int idx, +lstcon_dstnodes_prep(struct lstcon_group *grp, int idx, int dist, int span, int nkiov, lnet_kiov_t *kiov) { lnet_process_id_packed_t *pid; @@ -809,8 +809,8 @@ int lstcon_testrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, lstcon_test_t *test, struct lstcon_rpc **crpc) { - lstcon_group_t *sgrp = test->tes_src_grp; - lstcon_group_t *dgrp = test->tes_dst_grp; + struct lstcon_group *sgrp = test->tes_src_grp; + struct lstcon_group *dgrp = test->tes_dst_grp; srpc_test_reqst_t *trq; struct srpc_bulk *bulk; int i; diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index e068c13..47338f5 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -196,12 +196,12 @@ lstcon_ndlink_release(struct lstcon_ndlink *ndl) } static int -lstcon_group_alloc(char *name, lstcon_group_t **grpp) +lstcon_group_alloc(char *name, struct lstcon_group **grpp) { - lstcon_group_t *grp; + struct lstcon_group *grp; int i; - LIBCFS_ALLOC(grp, offsetof(lstcon_group_t, + LIBCFS_ALLOC(grp, offsetof(struct lstcon_group, grp_ndl_hash[LST_NODE_HASHSIZE])); if (!grp) return -ENOMEM; @@ -209,7 +209,7 @@ lstcon_group_alloc(char *name, lstcon_group_t **grpp) grp->grp_ref = 1; if (name) { if (strlen(name) > sizeof(grp->grp_name) - 1) { - LIBCFS_FREE(grp, offsetof(lstcon_group_t, + LIBCFS_FREE(grp, offsetof(struct lstcon_group, grp_ndl_hash[LST_NODE_HASHSIZE])); return -E2BIG; } @@ -229,15 +229,15 @@ lstcon_group_alloc(char *name, lstcon_group_t **grpp) } static void -lstcon_group_addref(lstcon_group_t *grp) +lstcon_group_addref(struct lstcon_group *grp) { grp->grp_ref++; } -static void lstcon_group_ndlink_release(lstcon_group_t *, struct lstcon_ndlink *); +static void lstcon_group_ndlink_release(struct lstcon_group *, struct lstcon_ndlink *); static void -lstcon_group_drain(lstcon_group_t *grp, int keep) +lstcon_group_drain(struct lstcon_group *grp, int keep) { struct lstcon_ndlink *ndl; struct lstcon_ndlink *tmp; @@ -249,7 +249,7 @@ lstcon_group_drain(lstcon_group_t *grp, int keep) } static void -lstcon_group_decref(lstcon_group_t *grp) +lstcon_group_decref(struct lstcon_group *grp) { int i; @@ -264,14 +264,14 @@ lstcon_group_decref(lstcon_group_t *grp) for (i = 0; i < LST_NODE_HASHSIZE; i++) LASSERT(list_empty(&grp->grp_ndl_hash[i])); - LIBCFS_FREE(grp, offsetof(lstcon_group_t, + LIBCFS_FREE(grp, offsetof(struct lstcon_group, grp_ndl_hash[LST_NODE_HASHSIZE])); } static int -lstcon_group_find(const char *name, lstcon_group_t **grpp) +lstcon_group_find(const char *name, struct lstcon_group **grpp) { - lstcon_group_t *grp; + struct lstcon_group *grp; list_for_each_entry(grp, &console_session.ses_grp_list, grp_link) { if (strncmp(grp->grp_name, name, LST_NAME_SIZE)) @@ -286,7 +286,7 @@ lstcon_group_find(const char *name, lstcon_group_t **grpp) } static int -lstcon_group_ndlink_find(lstcon_group_t *grp, lnet_process_id_t id, +lstcon_group_ndlink_find(struct lstcon_group *grp, lnet_process_id_t id, struct lstcon_ndlink **ndlpp, int create) { int rc; @@ -305,7 +305,7 @@ lstcon_group_ndlink_find(lstcon_group_t *grp, lnet_process_id_t id, } static void -lstcon_group_ndlink_release(lstcon_group_t *grp, struct lstcon_ndlink *ndl) +lstcon_group_ndlink_release(struct lstcon_group *grp, struct lstcon_ndlink *ndl) { list_del_init(&ndl->ndl_link); lstcon_ndlink_release(ndl); @@ -313,8 +313,8 @@ lstcon_group_ndlink_release(lstcon_group_t *grp, struct lstcon_ndlink *ndl) } static void -lstcon_group_ndlink_move(lstcon_group_t *old, - lstcon_group_t *new, struct lstcon_ndlink *ndl) +lstcon_group_ndlink_move(struct lstcon_group *old, + struct lstcon_group *new, struct lstcon_ndlink *ndl) { unsigned int idx = LNET_NIDADDR(ndl->ndl_node->nd_id.nid) % LST_NODE_HASHSIZE; @@ -329,7 +329,7 @@ lstcon_group_ndlink_move(lstcon_group_t *old, } static void -lstcon_group_move(lstcon_group_t *old, lstcon_group_t *new) +lstcon_group_move(struct lstcon_group *old, struct lstcon_group *new) { struct lstcon_ndlink *ndl; @@ -343,7 +343,7 @@ lstcon_group_move(lstcon_group_t *old, lstcon_group_t *new) static int lstcon_sesrpc_condition(int transop, struct lstcon_node *nd, void *arg) { - lstcon_group_t *grp = (lstcon_group_t *)arg; + struct lstcon_group *grp = (struct lstcon_group *)arg; switch (transop) { case LST_TRANS_SESNEW: @@ -399,13 +399,13 @@ lstcon_sesrpc_readent(int transop, srpc_msg_t *msg, } static int -lstcon_group_nodes_add(lstcon_group_t *grp, +lstcon_group_nodes_add(struct lstcon_group *grp, int count, lnet_process_id_t __user *ids_up, unsigned *featp, struct list_head __user *result_up) { struct lstcon_rpc_trans *trans; struct lstcon_ndlink *ndl; - lstcon_group_t *tmp; + struct lstcon_group *tmp; lnet_process_id_t id; int i; int rc; @@ -466,13 +466,13 @@ lstcon_group_nodes_add(lstcon_group_t *grp, } static int -lstcon_group_nodes_remove(lstcon_group_t *grp, +lstcon_group_nodes_remove(struct lstcon_group *grp, int count, lnet_process_id_t __user *ids_up, struct list_head __user *result_up) { struct lstcon_rpc_trans *trans; struct lstcon_ndlink *ndl; - lstcon_group_t *tmp; + struct lstcon_group *tmp; lnet_process_id_t id; int rc; int i; @@ -523,7 +523,7 @@ error: int lstcon_group_add(char *name) { - lstcon_group_t *grp; + struct lstcon_group *grp; int rc; rc = lstcon_group_find(name, &grp) ? 0 : -EEXIST; @@ -548,7 +548,7 @@ int lstcon_nodes_add(char *name, int count, lnet_process_id_t __user *ids_up, unsigned *featp, struct list_head __user *result_up) { - lstcon_group_t *grp; + struct lstcon_group *grp; int rc; LASSERT(count > 0); @@ -579,7 +579,7 @@ int lstcon_group_del(char *name) { struct lstcon_rpc_trans *trans; - lstcon_group_t *grp; + struct lstcon_group *grp; int rc; rc = lstcon_group_find(name, &grp); @@ -621,7 +621,7 @@ lstcon_group_del(char *name) int lstcon_group_clean(char *name, int args) { - lstcon_group_t *grp = NULL; + struct lstcon_group *grp = NULL; int rc; rc = lstcon_group_find(name, &grp); @@ -654,7 +654,7 @@ int lstcon_nodes_remove(char *name, int count, lnet_process_id_t __user *ids_up, struct list_head __user *result_up) { - lstcon_group_t *grp = NULL; + struct lstcon_group *grp = NULL; int rc; rc = lstcon_group_find(name, &grp); @@ -684,7 +684,7 @@ int lstcon_group_refresh(char *name, struct list_head __user *result_up) { struct lstcon_rpc_trans *trans; - lstcon_group_t *grp; + struct lstcon_group *grp; int rc; rc = lstcon_group_find(name, &grp); @@ -725,7 +725,7 @@ lstcon_group_refresh(char *name, struct list_head __user *result_up) int lstcon_group_list(int index, int len, char __user *name_up) { - lstcon_group_t *grp; + struct lstcon_group *grp; LASSERT(index >= 0); LASSERT(name_up); @@ -786,7 +786,7 @@ lstcon_group_info(char *name, lstcon_ndlist_ent_t __user *gents_p, lstcon_node_ent_t __user *dents_up) { lstcon_ndlist_ent_t *gentp; - lstcon_group_t *grp; + struct lstcon_group *grp; struct lstcon_ndlink *ndl; int rc; @@ -1188,7 +1188,7 @@ static int lstcon_test_nodes_add(lstcon_test_t *test, struct list_head __user *result_up) { struct lstcon_rpc_trans *trans; - lstcon_group_t *grp; + struct lstcon_group *grp; int transop; int rc; @@ -1255,7 +1255,7 @@ lstcon_verify_batch(const char *name, lstcon_batch_t **batch) } static int -lstcon_verify_group(const char *name, lstcon_group_t **grp) +lstcon_verify_group(const char *name, struct lstcon_group **grp) { int rc; struct lstcon_ndlink *ndl; @@ -1285,8 +1285,8 @@ lstcon_test_add(char *batch_name, int type, int loop, { lstcon_test_t *test = NULL; int rc; - lstcon_group_t *src_grp = NULL; - lstcon_group_t *dst_grp = NULL; + struct lstcon_group *src_grp = NULL; + struct lstcon_group *dst_grp = NULL; lstcon_batch_t *batch = NULL; /* @@ -1515,7 +1515,7 @@ int lstcon_group_stat(char *grp_name, int timeout, struct list_head __user *result_up) { - lstcon_group_t *grp; + struct lstcon_group *grp; int rc; rc = lstcon_group_find(grp_name, &grp); @@ -1536,7 +1536,7 @@ lstcon_nodes_stat(int count, lnet_process_id_t __user *ids_up, int timeout, struct list_head __user *result_up) { struct lstcon_ndlink *ndl; - lstcon_group_t *tmp; + struct lstcon_group *tmp; lnet_process_id_t id; int i; int rc; @@ -1628,7 +1628,7 @@ int lstcon_group_debug(int timeout, char *name, struct list_head __user *result_up) { - lstcon_group_t *grp; + struct lstcon_group *grp; int rc; rc = lstcon_group_find(name, &grp); @@ -1649,7 +1649,7 @@ lstcon_nodes_debug(int timeout, { lnet_process_id_t id; struct lstcon_ndlink *ndl; - lstcon_group_t *grp; + struct lstcon_group *grp; int i; int rc; @@ -1813,7 +1813,7 @@ int lstcon_session_end(void) { struct lstcon_rpc_trans *trans; - lstcon_group_t *grp; + struct lstcon_group *grp; lstcon_batch_t *bat; int rc = 0; @@ -1856,7 +1856,7 @@ lstcon_session_end(void) /* destroy all groups */ while (!list_empty(&console_session.ses_grp_list)) { grp = list_entry(console_session.ses_grp_list.next, - lstcon_group_t, grp_link); + struct lstcon_group, grp_link); LASSERT(grp->grp_ref == 1); lstcon_group_decref(grp); @@ -1909,7 +1909,7 @@ lstcon_acceptor_handle(struct srpc_server_rpc *rpc) srpc_msg_t *req = &rpc->srpc_reqstbuf->buf_msg; srpc_join_reqst_t *jreq = &req->msg_body.join_reqst; srpc_join_reply_t *jrep = &rep->msg_body.join_reply; - lstcon_group_t *grp = NULL; + struct lstcon_group *grp = NULL; struct lstcon_ndlink *ndl; int rc = 0; diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h index dd9674d..74bfcd8 100644 --- a/drivers/staging/lustre/lnet/selftest/console.h +++ b/drivers/staging/lustre/lnet/selftest/console.h @@ -67,7 +67,8 @@ struct lstcon_ndlink { struct lstcon_node *ndl_node; /* pointer to node */ }; -typedef struct { +/* (alias of nodes) group descriptor */ +struct lstcon_group { struct list_head grp_link; /* chain on global group list */ int grp_ref; /* reference count */ @@ -78,7 +79,7 @@ typedef struct { struct list_head grp_trans_list; /* transaction list */ struct list_head grp_ndl_list; /* nodes list */ struct list_head grp_ndl_hash[0]; /* hash table for nodes */ -} lstcon_group_t; /* (alias of nodes) group descriptor */ +}; #define LST_BATCH_IDLE 0xB0 /* idle batch */ #define LST_BATCH_RUNNING 0xB1 /* running batch */ @@ -122,8 +123,8 @@ typedef struct lstcon_test { int tes_cliidx; /* client index, used for RPC creating */ struct list_head tes_trans_list; /* transaction list */ - lstcon_group_t *tes_src_grp; /* group run the test */ - lstcon_group_t *tes_dst_grp; /* target group */ + struct lstcon_group *tes_src_grp; /* group run the test */ + struct lstcon_group *tes_dst_grp; /* target group */ int tes_paramlen; /* test parameter length */ char tes_param[0]; /* test parameter */ -- cgit v0.10.2 From 7299d186046b6cb285951abe75fa691c24c3a1a8 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:45 -0400 Subject: staging: lustre: selftest: convert lstcon_tsb_hdr_t to proper struct Turn typedef lstcon_tsb_hdr_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index 4272a61..651d9ef 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -650,7 +650,7 @@ lstcon_dbgrpc_prep(struct lstcon_node *nd, unsigned feats, struct lstcon_rpc **c int lstcon_batrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, - lstcon_tsb_hdr_t *tsb, struct lstcon_rpc **crpc) + struct lstcon_tsb_hdr *tsb, struct lstcon_rpc **crpc) { lstcon_batch_t *batch; srpc_batch_reqst_t *brq; @@ -1135,7 +1135,8 @@ lstcon_rpc_trans_ndlist(struct list_head *ndlist, case LST_TRANS_TSBCLIQRY: case LST_TRANS_TSBSRVQRY: rc = lstcon_batrpc_prep(nd, transop, feats, - (lstcon_tsb_hdr_t *)arg, &rpc); + (struct lstcon_tsb_hdr *)arg, + &rpc); break; case LST_TRANS_STATQRY: rc = lstcon_statrpc_prep(nd, feats, &rpc); diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 47338f5..41f732b 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -1406,7 +1406,7 @@ lstcon_test_batch_query(char *name, int testidx, int client, struct lstcon_rpc_trans *trans; struct list_head *translist; struct list_head *ndlist; - lstcon_tsb_hdr_t *hdr; + struct lstcon_tsb_hdr *hdr; lstcon_batch_t *batch; lstcon_test_t *test = NULL; int transop; diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h index 74bfcd8..427bc9b8 100644 --- a/drivers/staging/lustre/lnet/selftest/console.h +++ b/drivers/staging/lustre/lnet/selftest/console.h @@ -84,13 +84,13 @@ struct lstcon_group { #define LST_BATCH_IDLE 0xB0 /* idle batch */ #define LST_BATCH_RUNNING 0xB1 /* running batch */ -typedef struct lstcon_tsb_hdr { +struct lstcon_tsb_hdr { lst_bid_t tsb_id; /* batch ID */ int tsb_index; /* test index */ -} lstcon_tsb_hdr_t; +}; typedef struct { - lstcon_tsb_hdr_t bat_hdr; /* test_batch header */ + struct lstcon_tsb_hdr bat_hdr; /* test_batch header */ struct list_head bat_link; /* chain on session's batches list */ int bat_ntest; /* # of test */ int bat_state; /* state of the batch */ @@ -109,7 +109,7 @@ typedef struct { } lstcon_batch_t; /* (tests ) batch descriptor */ typedef struct lstcon_test { - lstcon_tsb_hdr_t tes_hdr; /* test batch header */ + struct lstcon_tsb_hdr tes_hdr; /* test batch header */ struct list_head tes_link; /* chain on batch's tests list */ lstcon_batch_t *tes_batch; /* pointer to batch */ -- cgit v0.10.2 From dcdc7c84fbb227f46574a8c656cb4145b744af9c Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:46 -0400 Subject: staging: lustre: selftest: convert lstcon_batch_t to proper struct Turn typedef lstcon_batch_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index 651d9ef..b64c24e 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -652,7 +652,7 @@ int lstcon_batrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, struct lstcon_tsb_hdr *tsb, struct lstcon_rpc **crpc) { - lstcon_batch_t *batch; + struct lstcon_batch *batch; srpc_batch_reqst_t *brq; int rc; @@ -675,7 +675,7 @@ lstcon_batrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, LASSERT(!tsb->tsb_index); - batch = (lstcon_batch_t *)tsb; + batch = (struct lstcon_batch *)tsb; brq->bar_arg = batch->bat_arg; return 0; diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 41f732b..deb0bc0 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -828,9 +828,9 @@ lstcon_group_info(char *name, lstcon_ndlist_ent_t __user *gents_p, } static int -lstcon_batch_find(const char *name, lstcon_batch_t **batpp) +lstcon_batch_find(const char *name, struct lstcon_batch **batpp) { - lstcon_batch_t *bat; + struct lstcon_batch *bat; list_for_each_entry(bat, &console_session.ses_bat_list, bat_link) { if (!strncmp(bat->bat_name, name, LST_NAME_SIZE)) { @@ -845,7 +845,7 @@ lstcon_batch_find(const char *name, lstcon_batch_t **batpp) int lstcon_batch_add(char *name) { - lstcon_batch_t *bat; + struct lstcon_batch *bat; int i; int rc; @@ -855,7 +855,7 @@ lstcon_batch_add(char *name) return rc; } - LIBCFS_ALLOC(bat, sizeof(lstcon_batch_t)); + LIBCFS_ALLOC(bat, sizeof(struct lstcon_batch)); if (!bat) { CERROR("Can't allocate descriptor for batch %s\n", name); return -ENOMEM; @@ -865,7 +865,7 @@ lstcon_batch_add(char *name) sizeof(struct list_head) * LST_NODE_HASHSIZE); if (!bat->bat_cli_hash) { CERROR("Can't allocate hash for batch %s\n", name); - LIBCFS_FREE(bat, sizeof(lstcon_batch_t)); + LIBCFS_FREE(bat, sizeof(struct lstcon_batch)); return -ENOMEM; } @@ -875,7 +875,7 @@ lstcon_batch_add(char *name) if (!bat->bat_srv_hash) { CERROR("Can't allocate hash for batch %s\n", name); LIBCFS_FREE(bat->bat_cli_hash, LST_NODE_HASHSIZE); - LIBCFS_FREE(bat, sizeof(lstcon_batch_t)); + LIBCFS_FREE(bat, sizeof(struct lstcon_batch)); return -ENOMEM; } @@ -883,7 +883,7 @@ lstcon_batch_add(char *name) if (strlen(name) > sizeof(bat->bat_name) - 1) { LIBCFS_FREE(bat->bat_srv_hash, LST_NODE_HASHSIZE); LIBCFS_FREE(bat->bat_cli_hash, LST_NODE_HASHSIZE); - LIBCFS_FREE(bat, sizeof(lstcon_batch_t)); + LIBCFS_FREE(bat, sizeof(struct lstcon_batch)); return -E2BIG; } strncpy(bat->bat_name, name, sizeof(bat->bat_name)); @@ -911,7 +911,7 @@ lstcon_batch_add(char *name) int lstcon_batch_list(int index, int len, char __user *name_up) { - lstcon_batch_t *bat; + struct lstcon_batch *bat; LASSERT(name_up); LASSERT(index >= 0); @@ -935,7 +935,7 @@ lstcon_batch_info(char *name, lstcon_test_batch_ent_t __user *ent_up, struct list_head *clilst; struct list_head *srvlst; lstcon_test_t *test = NULL; - lstcon_batch_t *bat; + struct lstcon_batch *bat; struct lstcon_ndlink *ndl; int rc; @@ -1020,7 +1020,7 @@ lstcon_batrpc_condition(int transop, struct lstcon_node *nd, void *arg) } static int -lstcon_batch_op(lstcon_batch_t *bat, int transop, +lstcon_batch_op(struct lstcon_batch *bat, int transop, struct list_head __user *result_up) { struct lstcon_rpc_trans *trans; @@ -1046,7 +1046,7 @@ lstcon_batch_op(lstcon_batch_t *bat, int transop, int lstcon_batch_run(char *name, int timeout, struct list_head __user *result_up) { - lstcon_batch_t *bat; + struct lstcon_batch *bat; int rc; if (lstcon_batch_find(name, &bat)) { @@ -1068,7 +1068,7 @@ lstcon_batch_run(char *name, int timeout, struct list_head __user *result_up) int lstcon_batch_stop(char *name, int force, struct list_head __user *result_up) { - lstcon_batch_t *bat; + struct lstcon_batch *bat; int rc; if (lstcon_batch_find(name, &bat)) { @@ -1088,7 +1088,7 @@ lstcon_batch_stop(char *name, int force, struct list_head __user *result_up) } static void -lstcon_batch_destroy(lstcon_batch_t *bat) +lstcon_batch_destroy(struct lstcon_batch *bat) { struct lstcon_ndlink *ndl; lstcon_test_t *test; @@ -1137,14 +1137,14 @@ lstcon_batch_destroy(lstcon_batch_t *bat) sizeof(struct list_head) * LST_NODE_HASHSIZE); LIBCFS_FREE(bat->bat_srv_hash, sizeof(struct list_head) * LST_NODE_HASHSIZE); - LIBCFS_FREE(bat, sizeof(lstcon_batch_t)); + LIBCFS_FREE(bat, sizeof(struct lstcon_batch)); } static int lstcon_testrpc_condition(int transop, struct lstcon_node *nd, void *arg) { lstcon_test_t *test; - lstcon_batch_t *batch; + struct lstcon_batch *batch; struct lstcon_ndlink *ndl; struct list_head *hash; struct list_head *head; @@ -1236,7 +1236,7 @@ again: } static int -lstcon_verify_batch(const char *name, lstcon_batch_t **batch) +lstcon_verify_batch(const char *name, struct lstcon_batch **batch) { int rc; @@ -1287,7 +1287,7 @@ lstcon_test_add(char *batch_name, int type, int loop, int rc; struct lstcon_group *src_grp = NULL; struct lstcon_group *dst_grp = NULL; - lstcon_batch_t *batch = NULL; + struct lstcon_batch *batch = NULL; /* * verify that a batch of the given name exists, and the groups @@ -1368,7 +1368,7 @@ out: } static int -lstcon_test_find(lstcon_batch_t *batch, int idx, lstcon_test_t **testpp) +lstcon_test_find(struct lstcon_batch *batch, int idx, lstcon_test_t **testpp) { lstcon_test_t *test; @@ -1407,7 +1407,7 @@ lstcon_test_batch_query(char *name, int testidx, int client, struct list_head *translist; struct list_head *ndlist; struct lstcon_tsb_hdr *hdr; - lstcon_batch_t *batch; + struct lstcon_batch *batch; lstcon_test_t *test = NULL; int transop; int rc; @@ -1610,7 +1610,7 @@ int lstcon_batch_debug(int timeout, char *name, int client, struct list_head __user *result_up) { - lstcon_batch_t *bat; + struct lstcon_batch *bat; int rc; rc = lstcon_batch_find(name, &bat); @@ -1757,7 +1757,7 @@ lstcon_session_new(char *name, int key, unsigned feats, rc = lstcon_rpc_pinger_start(); if (rc) { - lstcon_batch_t *bat = NULL; + struct lstcon_batch *bat = NULL; lstcon_batch_find(LST_DEFAULT_BATCH, &bat); lstcon_batch_destroy(bat); @@ -1814,7 +1814,7 @@ lstcon_session_end(void) { struct lstcon_rpc_trans *trans; struct lstcon_group *grp; - lstcon_batch_t *bat; + struct lstcon_batch *bat; int rc = 0; LASSERT(console_session.ses_state == LST_SESSION_ACTIVE); @@ -1848,7 +1848,7 @@ lstcon_session_end(void) /* destroy all batches */ while (!list_empty(&console_session.ses_bat_list)) { bat = list_entry(console_session.ses_bat_list.next, - lstcon_batch_t, bat_link); + struct lstcon_batch, bat_link); lstcon_batch_destroy(bat); } diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h index 427bc9b8..ccd4982 100644 --- a/drivers/staging/lustre/lnet/selftest/console.h +++ b/drivers/staging/lustre/lnet/selftest/console.h @@ -89,7 +89,8 @@ struct lstcon_tsb_hdr { int tsb_index; /* test index */ }; -typedef struct { +/* (tests ) batch descriptor */ +struct lstcon_batch { struct lstcon_tsb_hdr bat_hdr; /* test_batch header */ struct list_head bat_link; /* chain on session's batches list */ int bat_ntest; /* # of test */ @@ -106,12 +107,12 @@ typedef struct { struct list_head *bat_cli_hash; /* hash table of client nodes */ struct list_head bat_srv_list; /* list head of server nodes */ struct list_head *bat_srv_hash; /* hash table of server nodes */ -} lstcon_batch_t; /* (tests ) batch descriptor */ +}; typedef struct lstcon_test { struct lstcon_tsb_hdr tes_hdr; /* test batch header */ struct list_head tes_link; /* chain on batch's tests list */ - lstcon_batch_t *tes_batch; /* pointer to batch */ + struct lstcon_batch *tes_batch; /* pointer to batch */ int tes_type; /* type of the test, i.e: bulk, ping */ int tes_stop_onerr; /* stop on error */ -- cgit v0.10.2 From fd7a1a32514c46c1629290aa03d3e1d91c98dab4 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:48 -0400 Subject: staging: lustre: selftest: convert srpc_msg_t to proper struct Turn typedef struct srpc_msg to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index bbb003d..7f539f9 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -318,7 +318,7 @@ brw_client_done_rpc(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc) __u64 magic = BRW_MAGIC; struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_session *sn = tsi->tsi_batch->bat_session; - srpc_msg_t *msg = &rpc->crpc_replymsg; + struct srpc_msg *msg = &rpc->crpc_replymsg; srpc_brw_reply_t *reply = &msg->msg_body.brw_reply; srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst; @@ -384,7 +384,7 @@ brw_bulk_ready(struct srpc_server_rpc *rpc, int status) __u64 magic = BRW_MAGIC; srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply; srpc_brw_reqst_t *reqst; - srpc_msg_t *reqstmsg; + struct srpc_msg *reqstmsg; LASSERT(rpc->srpc_bulk); LASSERT(rpc->srpc_reqstbuf); @@ -418,8 +418,8 @@ static int brw_server_handle(struct srpc_server_rpc *rpc) { struct srpc_service *sv = rpc->srpc_scd->scd_svc; - srpc_msg_t *replymsg = &rpc->srpc_replymsg; - srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg; + struct srpc_msg *replymsg = &rpc->srpc_replymsg; + struct srpc_msg *reqstmsg = &rpc->srpc_reqstbuf->buf_msg; srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply; srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst; int npg; diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index b64c24e..31d7b4f 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -46,7 +46,7 @@ #include "conrpc.h" #include "console.h" -void lstcon_rpc_stat_reply(struct lstcon_rpc_trans *, srpc_msg_t *, +void lstcon_rpc_stat_reply(struct lstcon_rpc_trans *, struct srpc_msg *, struct lstcon_node *, lstcon_trans_stat_t *); static void @@ -386,7 +386,7 @@ lstcon_rpc_trans_postwait(struct lstcon_rpc_trans *trans, int timeout) } static int -lstcon_rpc_get_reply(struct lstcon_rpc *crpc, srpc_msg_t **msgpp) +lstcon_rpc_get_reply(struct lstcon_rpc *crpc, struct srpc_msg **msgpp) { struct lstcon_node *nd = crpc->crp_node; struct srpc_client_rpc *rpc = crpc->crp_rpc; @@ -426,7 +426,7 @@ void lstcon_rpc_trans_stat(struct lstcon_rpc_trans *trans, lstcon_trans_stat_t *stat) { struct lstcon_rpc *crpc; - srpc_msg_t *rep; + struct srpc_msg *rep; int error; LASSERT(stat); @@ -475,7 +475,7 @@ lstcon_rpc_trans_interpreter(struct lstcon_rpc_trans *trans, lstcon_rpc_ent_t *ent; srpc_generic_reply_t *rep; struct lstcon_rpc *crpc; - srpc_msg_t *msg; + struct srpc_msg *msg; struct lstcon_node *nd; long dur; struct timeval tv; @@ -916,7 +916,7 @@ lstcon_testrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, static int lstcon_sesnew_stat_reply(struct lstcon_rpc_trans *trans, - struct lstcon_node *nd, srpc_msg_t *reply) + struct lstcon_node *nd, struct srpc_msg *reply) { srpc_mksn_reply_t *mksn_rep = &reply->msg_body.mksn_reply; int status = mksn_rep->mksn_status; @@ -962,7 +962,7 @@ lstcon_sesnew_stat_reply(struct lstcon_rpc_trans *trans, } void -lstcon_rpc_stat_reply(struct lstcon_rpc_trans *trans, srpc_msg_t *msg, +lstcon_rpc_stat_reply(struct lstcon_rpc_trans *trans, struct srpc_msg *msg, struct lstcon_node *nd, lstcon_trans_stat_t *stat) { srpc_rmsn_reply_t *rmsn_rep; @@ -1171,7 +1171,7 @@ lstcon_rpc_pinger(void *arg) struct stt_timer *ptimer = (struct stt_timer *)arg; struct lstcon_rpc_trans *trans; struct lstcon_rpc *crpc; - srpc_msg_t *rep; + struct srpc_msg *rep; srpc_debug_reqst_t *drq; struct lstcon_ndlink *ndl; struct lstcon_node *nd; diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.h b/drivers/staging/lustre/lnet/selftest/conrpc.h index 7281abd..90c3385 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.h +++ b/drivers/staging/lustre/lnet/selftest/conrpc.h @@ -106,7 +106,7 @@ struct lstcon_rpc_trans { #define LST_TRANS_STATQRY 0x21 typedef int (*lstcon_rpc_cond_func_t)(int, struct lstcon_node *, void *); -typedef int (*lstcon_rpc_readent_func_t)(int, srpc_msg_t *, +typedef int (*lstcon_rpc_readent_func_t)(int, struct srpc_msg *, lstcon_rpc_ent_t __user *); int lstcon_sesrpc_prep(struct lstcon_node *nd, int transop, diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index deb0bc0..03c73b0 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -370,7 +370,7 @@ lstcon_sesrpc_condition(int transop, struct lstcon_node *nd, void *arg) } static int -lstcon_sesrpc_readent(int transop, srpc_msg_t *msg, +lstcon_sesrpc_readent(int transop, struct srpc_msg *msg, lstcon_rpc_ent_t __user *ent_up) { srpc_debug_reply_t *rep; @@ -1383,7 +1383,7 @@ lstcon_test_find(struct lstcon_batch *batch, int idx, lstcon_test_t **testpp) } static int -lstcon_tsbrpc_readent(int transop, srpc_msg_t *msg, +lstcon_tsbrpc_readent(int transop, struct srpc_msg *msg, lstcon_rpc_ent_t __user *ent_up) { srpc_batch_reply_t *rep = &msg->msg_body.bat_reply; @@ -1462,7 +1462,7 @@ lstcon_test_batch_query(char *name, int testidx, int client, } static int -lstcon_statrpc_readent(int transop, srpc_msg_t *msg, +lstcon_statrpc_readent(int transop, struct srpc_msg *msg, lstcon_rpc_ent_t __user *ent_up) { srpc_stat_reply_t *rep = &msg->msg_body.stat_reply; @@ -1905,8 +1905,8 @@ lstcon_session_feats_check(unsigned feats) static int lstcon_acceptor_handle(struct srpc_server_rpc *rpc) { - srpc_msg_t *rep = &rpc->srpc_replymsg; - srpc_msg_t *req = &rpc->srpc_reqstbuf->buf_msg; + struct srpc_msg *rep = &rpc->srpc_replymsg; + struct srpc_msg *req = &rpc->srpc_reqstbuf->buf_msg; srpc_join_reqst_t *jreq = &req->msg_body.join_reqst; srpc_join_reply_t *jrep = &rep->msg_body.join_reply; struct lstcon_group *grp = NULL; diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index 84239c3..ef3cc82 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -405,7 +405,7 @@ int sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply) { struct sfw_session *sn = sfw_data.fw_session; - srpc_msg_t *msg = container_of(request, srpc_msg_t, + struct srpc_msg *msg = container_of(request, struct srpc_msg, msg_body.mksn_reqst); int cplen = 0; @@ -438,7 +438,7 @@ sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply) /* * reject the request if it requires unknown features * NB: old version will always accept all features because it's not - * aware of srpc_msg_t::msg_ses_feats, it's a defect but it's also + * aware of srpc_msg::msg_ses_feats, it's a defect but it's also * harmless because it will return zero feature to console, and it's * console's responsibility to make sure all nodes in a session have * same feature mask. @@ -685,7 +685,7 @@ sfw_destroy_session(struct sfw_session *sn) } static void -sfw_unpack_addtest_req(srpc_msg_t *msg) +sfw_unpack_addtest_req(struct srpc_msg *msg) { srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; @@ -731,7 +731,7 @@ sfw_unpack_addtest_req(srpc_msg_t *msg) static int sfw_add_test_instance(struct sfw_batch *tsb, struct srpc_server_rpc *rpc) { - srpc_msg_t *msg = &rpc->srpc_reqstbuf->buf_msg; + struct srpc_msg *msg = &rpc->srpc_reqstbuf->buf_msg; srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; struct srpc_bulk *bk = rpc->srpc_bulk; int ndest = req->tsr_ndest; @@ -1227,8 +1227,8 @@ static int sfw_handle_server_rpc(struct srpc_server_rpc *rpc) { struct srpc_service *sv = rpc->srpc_scd->scd_svc; - srpc_msg_t *reply = &rpc->srpc_replymsg; - srpc_msg_t *request = &rpc->srpc_reqstbuf->buf_msg; + struct srpc_msg *reply = &rpc->srpc_replymsg; + struct srpc_msg *request = &rpc->srpc_reqstbuf->buf_msg; unsigned features = LST_FEATS_MASK; int rc = 0; @@ -1415,7 +1415,7 @@ sfw_create_rpc(lnet_process_id_t peer, int service, } void -sfw_unpack_message(srpc_msg_t *msg) +sfw_unpack_message(struct srpc_msg *msg) { if (msg->msg_magic == SRPC_MSG_MAGIC) return; /* no flipping needed */ diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c index c6f2caa..8a9d7a4 100644 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c @@ -171,8 +171,8 @@ static int ping_server_handle(struct srpc_server_rpc *rpc) { struct srpc_service *sv = rpc->srpc_scd->scd_svc; - srpc_msg_t *reqstmsg = &rpc->srpc_reqstbuf->buf_msg; - srpc_msg_t *replymsg = &rpc->srpc_replymsg; + struct srpc_msg *reqstmsg = &rpc->srpc_reqstbuf->buf_msg; + struct srpc_msg *replymsg = &rpc->srpc_replymsg; srpc_ping_reqst_t *req = &reqstmsg->msg_body.ping_reqst; srpc_ping_reply_t *rep = &rpc->srpc_replymsg.msg_body.ping_reply; diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index e3cd407..91af6ba 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -803,7 +803,7 @@ srpc_send_request(struct srpc_client_rpc *rpc) rc = srpc_post_active_rdma(srpc_serv_portal(rpc->crpc_service), rpc->crpc_service, &rpc->crpc_reqstmsg, - sizeof(srpc_msg_t), LNET_MD_OP_PUT, + sizeof(struct srpc_msg), LNET_MD_OP_PUT, rpc->crpc_dest, LNET_NID_ANY, &rpc->crpc_reqstmdh, ev); if (rc) { @@ -827,7 +827,8 @@ srpc_prepare_reply(struct srpc_client_rpc *rpc) *id = srpc_next_id(); rc = srpc_post_passive_rdma(SRPC_RDMA_PORTAL, 0, *id, - &rpc->crpc_replymsg, sizeof(srpc_msg_t), + &rpc->crpc_replymsg, + sizeof(struct srpc_msg), LNET_MD_OP_PUT, rpc->crpc_dest, &rpc->crpc_replymdh, ev); if (rc) { @@ -995,7 +996,7 @@ srpc_handle_rpc(struct swi_workitem *wi) default: LBUG(); case SWI_STATE_NEWBORN: { - srpc_msg_t *msg; + struct srpc_msg *msg; srpc_generic_reply_t *reply; msg = &rpc->srpc_reqstbuf->buf_msg; @@ -1179,7 +1180,7 @@ srpc_send_rpc(struct swi_workitem *wi) { int rc = 0; struct srpc_client_rpc *rpc; - srpc_msg_t *reply; + struct srpc_msg *reply; int do_bulk; LASSERT(wi); @@ -1415,7 +1416,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev) struct srpc_server_rpc *srpc; struct srpc_buffer *buffer; struct srpc_service *sv; - srpc_msg_t *msg; + struct srpc_msg *msg; srpc_msg_type_t type; LASSERT(!in_interrupt()); diff --git a/drivers/staging/lustre/lnet/selftest/rpc.h b/drivers/staging/lustre/lnet/selftest/rpc.h index a79c315..fdf881f 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.h +++ b/drivers/staging/lustre/lnet/selftest/rpc.h @@ -242,7 +242,7 @@ typedef struct { #define SRPC_MSG_MAGIC 0xeeb0f00d #define SRPC_MSG_VERSION 1 -typedef struct srpc_msg { +struct srpc_msg { __u32 msg_magic; /* magic number */ __u32 msg_version; /* message version number */ __u32 msg_type; /* type of message body: srpc_msg_type_t */ @@ -273,10 +273,10 @@ typedef struct srpc_msg { srpc_brw_reqst_t brw_reqst; srpc_brw_reply_t brw_reply; } msg_body; -} WIRE_ATTR srpc_msg_t; +} WIRE_ATTR; static inline void -srpc_unpack_msg_hdr(srpc_msg_t *msg) +srpc_unpack_msg_hdr(struct srpc_msg *msg) { if (msg->msg_magic == SRPC_MSG_MAGIC) return; /* no flipping needed */ diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index bc4c7ac..1dac777 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -166,7 +166,7 @@ struct srpc_bulk { /* message buffer descriptor */ struct srpc_buffer { struct list_head buf_list; /* chain on srpc_service::*_msgq */ - srpc_msg_t buf_msg; + struct srpc_msg buf_msg; lnet_handle_md_t buf_mdh; lnet_nid_t buf_self; lnet_process_id_t buf_peer; @@ -191,7 +191,7 @@ struct srpc_server_rpc { struct srpc_event srpc_ev; /* bulk/reply event */ lnet_nid_t srpc_self; lnet_process_id_t srpc_peer; - srpc_msg_t srpc_replymsg; + struct srpc_msg srpc_replymsg; lnet_handle_md_t srpc_replymdh; struct srpc_buffer *srpc_reqstbuf; struct srpc_bulk *srpc_bulk; @@ -227,8 +227,8 @@ struct srpc_client_rpc { struct srpc_event crpc_replyev; /* reply event */ /* bulk, request(reqst), and reply exchanged on wire */ - srpc_msg_t crpc_reqstmsg; - srpc_msg_t crpc_replymsg; + struct srpc_msg crpc_reqstmsg; + struct srpc_msg crpc_replymsg; lnet_handle_md_t crpc_reqstmdh; lnet_handle_md_t crpc_replymdh; struct srpc_bulk crpc_bulk; @@ -423,7 +423,7 @@ int sfw_create_test_rpc(struct sfw_test_unit *tsu, void sfw_abort_rpc(struct srpc_client_rpc *rpc); void sfw_post_rpc(struct srpc_client_rpc *rpc); void sfw_client_rpc_done(struct srpc_client_rpc *rpc); -void sfw_unpack_message(srpc_msg_t *msg); +void sfw_unpack_message(struct srpc_msg *msg); void sfw_free_pages(struct srpc_server_rpc *rpc); void sfw_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i); int sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len, -- cgit v0.10.2 From c970b6058b60e57c9b831fd69ded4cafb62fa308 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 6 Apr 2016 15:25:50 -0400 Subject: staging: lustre: selftest: change srpc_state_t to proper enum Turn typedef srpc_state_t to proper enum Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index 91af6ba..561e28c 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -46,19 +46,19 @@ #include "selftest.h" -typedef enum { +enum srpc_state { SRPC_STATE_NONE, SRPC_STATE_NI_INIT, SRPC_STATE_EQ_INIT, SRPC_STATE_RUNNING, SRPC_STATE_STOPPING, -} srpc_state_t; +}; static struct smoketest_rpc { spinlock_t rpc_glock; /* global lock */ struct srpc_service *rpc_services[SRPC_SERVICE_MAX_ID + 1]; lnet_handle_eq_t rpc_lnet_eq; /* _the_ LNet event queue */ - srpc_state_t rpc_state; + enum srpc_state rpc_state; srpc_counters_t rpc_counters; __u64 rpc_matchbits; /* matchbits counter */ } srpc_data; -- cgit v0.10.2 From 3726470610327f353e816e21a86bc432dd929584 Mon Sep 17 00:00:00 2001 From: Cihangir Akturk Date: Sat, 9 Apr 2016 21:47:44 +0300 Subject: staging: lustre: split error handling code into multiple labels Instead of using a switch-case statement to find out what kind of error has just happened, split error handling logic into multiple labels and jump right into the appropriate label to do the error handling. This way it is easier to follow different code paths. It also looks easy on the eyes. Additionally silences the following coccinelle warning: drivers/staging/lustre/lustre/obdecho/echo_client.c:762:22-27: ERROR: ed is NULL but dereferenced. Signed-off-by: Cihangir Akturk Acked-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c index 4ae4a89..b271895 100644 --- a/drivers/staging/lustre/lustre/obdecho/echo_client.c +++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c @@ -668,8 +668,7 @@ static struct lu_device *echo_device_alloc(const struct lu_env *env, struct obd_device *obd = NULL; /* to keep compiler happy */ struct obd_device *tgt; const char *tgt_type_name; - int rc; - int cleanup = 0; + int rc, err; ed = kzalloc(sizeof(*ed), GFP_NOFS); if (!ed) { @@ -677,16 +676,14 @@ static struct lu_device *echo_device_alloc(const struct lu_env *env, goto out; } - cleanup = 1; cd = &ed->ed_cl; rc = cl_device_init(cd, t); if (rc) - goto out; + goto out_free; cd->cd_lu_dev.ld_ops = &echo_device_lu_ops; cd->cd_ops = &echo_device_cl_ops; - cleanup = 2; obd = class_name2obd(lustre_cfg_string(cfg, 0)); LASSERT(obd); LASSERT(env); @@ -696,28 +693,25 @@ static struct lu_device *echo_device_alloc(const struct lu_env *env, CERROR("Can not find tgt device %s\n", lustre_cfg_string(cfg, 1)); rc = -ENODEV; - goto out; + goto out_device_fini; } next = tgt->obd_lu_dev; if (!strcmp(tgt->obd_type->typ_name, LUSTRE_MDT_NAME)) { CERROR("echo MDT client must be run on server\n"); rc = -EOPNOTSUPP; - goto out; + goto out_device_fini; } rc = echo_site_init(env, ed); if (rc) - goto out; - - cleanup = 3; + goto out_device_fini; rc = echo_client_setup(env, obd, cfg); if (rc) - goto out; + goto out_site_fini; ed->ed_ec = &obd->u.echo_client; - cleanup = 4; /* if echo client is to be stacked upon ost device, the next is * NULL since ost is not a clio device so far @@ -729,7 +723,7 @@ static struct lu_device *echo_device_alloc(const struct lu_env *env, if (next) { if (next->ld_site) { rc = -EBUSY; - goto out; + goto out_cleanup; } next->ld_site = &ed->ed_site->cs_lu; @@ -737,7 +731,7 @@ static struct lu_device *echo_device_alloc(const struct lu_env *env, next->ld_type->ldt_name, NULL); if (rc) - goto out; + goto out_cleanup; } else { LASSERT(strcmp(tgt_type_name, LUSTRE_OST_NAME) == 0); @@ -745,27 +739,19 @@ static struct lu_device *echo_device_alloc(const struct lu_env *env, ed->ed_next = next; return &cd->cd_lu_dev; -out: - switch (cleanup) { - case 4: { - int rc2; - - rc2 = echo_client_cleanup(obd); - if (rc2) - CERROR("Cleanup obd device %s error(%d)\n", - obd->obd_name, rc2); - } - case 3: - echo_site_fini(env, ed); - case 2: - cl_device_fini(&ed->ed_cl); - case 1: - kfree(ed); - case 0: - default: - break; - } +out_cleanup: + err = echo_client_cleanup(obd); + if (err) + CERROR("Cleanup obd device %s error(%d)\n", + obd->obd_name, err); +out_site_fini: + echo_site_fini(env, ed); +out_device_fini: + cl_device_fini(&ed->ed_cl); +out_free: + kfree(ed); +out: return ERR_PTR(rc); } -- cgit v0.10.2 From e4feb2f257955cd9319f38bc935eda99ca6294b6 Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Mon, 4 Apr 2016 23:31:11 -0400 Subject: staging: unisys: visorbus: 'unsigned' --> 'unsigned int' Fix as recommended by checkpatch. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 6187772..9f0ec171 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -66,7 +66,7 @@ static u32 dump_vhba_bus; static int visorchipset_open(struct inode *inode, struct file *file) { - unsigned minor_number = iminor(inode); + unsigned int minor_number = iminor(inode); if (minor_number) return -ENODEV; -- cgit v0.10.2 From a07d7c3858aef317495e061ffc93207c89771fe2 Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Mon, 4 Apr 2016 23:31:12 -0400 Subject: staging: unisys: visorbus: CHECK: Alignment should match open parenthesis Fix 'CHECK: Alignment should match open parenthesis' as recommended by checkpatch. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 9f0ec171..afcd291 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -530,10 +530,11 @@ static ssize_t toolaction_store(struct device *dev, if (kstrtou8(buf, 10, &tool_action)) return -EINVAL; - ret = visorchannel_write(controlvm_channel, - offsetof(struct spar_controlvm_channel_protocol, - tool_action), - &tool_action, sizeof(u8)); + ret = visorchannel_write + (controlvm_channel, + offsetof(struct spar_controlvm_channel_protocol, + tool_action), + &tool_action, sizeof(u8)); if (ret) return ret; @@ -565,10 +566,11 @@ static ssize_t boottotool_store(struct device *dev, return -EINVAL; efi_spar_indication.boot_to_tool = val; - ret = visorchannel_write(controlvm_channel, - offsetof(struct spar_controlvm_channel_protocol, - efi_spar_ind), &(efi_spar_indication), - sizeof(struct efi_spar_indication)); + ret = visorchannel_write + (controlvm_channel, + offsetof(struct spar_controlvm_channel_protocol, + efi_spar_ind), &(efi_spar_indication), + sizeof(struct efi_spar_indication)); if (ret) return ret; @@ -596,10 +598,11 @@ static ssize_t error_store(struct device *dev, struct device_attribute *attr, if (kstrtou32(buf, 10, &error)) return -EINVAL; - ret = visorchannel_write(controlvm_channel, - offsetof(struct spar_controlvm_channel_protocol, - installation_error), - &error, sizeof(u32)); + ret = visorchannel_write + (controlvm_channel, + offsetof(struct spar_controlvm_channel_protocol, + installation_error), + &error, sizeof(u32)); if (ret) return ret; return count; @@ -610,10 +613,11 @@ static ssize_t textid_show(struct device *dev, struct device_attribute *attr, { u32 text_id; - visorchannel_read(controlvm_channel, - offsetof(struct spar_controlvm_channel_protocol, - installation_text_id), - &text_id, sizeof(u32)); + visorchannel_read + (controlvm_channel, + offsetof(struct spar_controlvm_channel_protocol, + installation_text_id), + &text_id, sizeof(u32)); return scnprintf(buf, PAGE_SIZE, "%i\n", text_id); } @@ -626,10 +630,11 @@ static ssize_t textid_store(struct device *dev, struct device_attribute *attr, if (kstrtou32(buf, 10, &text_id)) return -EINVAL; - ret = visorchannel_write(controlvm_channel, - offsetof(struct spar_controlvm_channel_protocol, - installation_text_id), - &text_id, sizeof(u32)); + ret = visorchannel_write + (controlvm_channel, + offsetof(struct spar_controlvm_channel_protocol, + installation_text_id), + &text_id, sizeof(u32)); if (ret) return ret; return count; @@ -657,10 +662,11 @@ static ssize_t remaining_steps_store(struct device *dev, if (kstrtou16(buf, 10, &remaining_steps)) return -EINVAL; - ret = visorchannel_write(controlvm_channel, - offsetof(struct spar_controlvm_channel_protocol, - installation_remaining_steps), - &remaining_steps, sizeof(u16)); + ret = visorchannel_write + (controlvm_channel, + offsetof(struct spar_controlvm_channel_protocol, + installation_remaining_steps), + &remaining_steps, sizeof(u16)); if (ret) return ret; return count; @@ -1226,8 +1232,9 @@ bus_configure(struct controlvm_message *inmsg, POSTCODE_SEVERITY_ERR); rc = -CONTROLVM_RESP_ERROR_MESSAGE_ID_INVALID_FOR_CLIENT; } else { - visorchannel_set_clientpartition(bus_info->visorchannel, - cmd->configure_bus.guest_handle); + visorchannel_set_clientpartition + (bus_info->visorchannel, + cmd->configure_bus.guest_handle); bus_info->partition_uuid = parser_id_get(parser_ctx); parser_param_start(parser_ctx, PARSERSTRING_NAME); bus_info->name = parser_string_get(parser_ctx); @@ -1709,9 +1716,10 @@ parahotplug_process_message(struct controlvm_message *inmsg) * initialization. */ parahotplug_request_kickoff(req); - controlvm_respond_physdev_changestate(&inmsg->hdr, - CONTROLVM_RESP_SUCCESS, - inmsg->cmd.device_change_state.state); + controlvm_respond_physdev_changestate + (&inmsg->hdr, + CONTROLVM_RESP_SUCCESS, + inmsg->cmd.device_change_state.state); parahotplug_request_destroy(req); } else { /* For disable messages, add the request to the @@ -1823,8 +1831,9 @@ handle_command(struct controlvm_message inmsg, u64 channel_addr) break; default: if (inmsg.hdr.flags.response_expected) - controlvm_respond(&inmsg.hdr, - -CONTROLVM_RESP_ERROR_MESSAGE_ID_UNKNOWN); + controlvm_respond + (&inmsg.hdr, + -CONTROLVM_RESP_ERROR_MESSAGE_ID_UNKNOWN); break; } @@ -2177,10 +2186,11 @@ visorchipset_mmap(struct file *file, struct vm_area_struct *vma) if (!*file_controlvm_channel) return -ENXIO; - visorchannel_read(*file_controlvm_channel, - offsetof(struct spar_controlvm_channel_protocol, - gp_control_channel), - &addr, sizeof(addr)); + visorchannel_read + (*file_controlvm_channel, + offsetof(struct spar_controlvm_channel_protocol, + gp_control_channel), + &addr, sizeof(addr)); if (!addr) return -ENXIO; -- cgit v0.10.2 From dc38082f0f0967f8badce0ae5ecf07cd5843d65f Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Mon, 4 Apr 2016 23:31:13 -0400 Subject: staging: unisys: visornic: CHECK: Alignment should match open parenthesis Fix 'CHECK: Alignment should match open parenthesis' as recommended by checkpatch. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c index be0d057..763738d 100644 --- a/drivers/staging/unisys/visornic/visornic_main.c +++ b/drivers/staging/unisys/visornic/visornic_main.c @@ -436,8 +436,8 @@ post_skb(struct uiscmdrsp *cmdrsp, cmdrsp->net.type = NET_RCV_POST; cmdrsp->cmdtype = CMD_NET_TYPE; if (visorchannel_signalinsert(devdata->dev->visorchannel, - IOCHAN_TO_IOPART, - cmdrsp)) { + IOCHAN_TO_IOPART, + cmdrsp)) { atomic_inc(&devdata->num_rcvbuf_in_iovm); devdata->chstat.sent_post++; } else { @@ -465,8 +465,8 @@ send_enbdis(struct net_device *netdev, int state, devdata->cmdrsp_rcv->net.type = NET_RCV_ENBDIS; devdata->cmdrsp_rcv->cmdtype = CMD_NET_TYPE; if (visorchannel_signalinsert(devdata->dev->visorchannel, - IOCHAN_TO_IOPART, - devdata->cmdrsp_rcv)) + IOCHAN_TO_IOPART, + devdata->cmdrsp_rcv)) devdata->chstat.sent_enbdis++; } @@ -1647,8 +1647,9 @@ service_resp_queue(struct uiscmdrsp *cmdrsp, struct visornic_devdata *devdata, * the lower watermark for * netif_wake_queue() */ - if (vnic_hit_low_watermark(devdata, - devdata->lower_threshold_net_xmits)) { + if (vnic_hit_low_watermark + (devdata, + devdata->lower_threshold_net_xmits)) { /* enough NET_XMITs completed * so can restart netif queue */ -- cgit v0.10.2 From 2b9bcf81d37751ebdae8c1456d14c1462e4e8f61 Mon Sep 17 00:00:00 2001 From: David Binder Date: Mon, 4 Apr 2016 23:31:32 -0400 Subject: staging: unisys: visorchannel: remove redundant member size Removes size member from the visorchannel struct, since it was a duplicate of the nbytes member. Signed-off-by: David Binder Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchannel.c b/drivers/staging/unisys/visorbus/visorchannel.c index b68a904..4337358 100644 --- a/drivers/staging/unisys/visorbus/visorchannel.c +++ b/drivers/staging/unisys/visorbus/visorchannel.c @@ -40,7 +40,6 @@ struct visorchannel { bool requested; struct channel_header chan_hdr; uuid_le guid; - ulong size; bool needs_lock; /* channel creator knows if more than one */ /* thread will be inserting or removing */ spinlock_t insert_lock; /* protect head writes in chan_hdr */ @@ -134,8 +133,6 @@ visorchannel_create_guts(u64 physaddr, unsigned long channel_bytes, } channel->nbytes = channel_bytes; - - channel->size = channel_bytes; channel->guid = guid; return channel; @@ -186,7 +183,7 @@ EXPORT_SYMBOL_GPL(visorchannel_get_physaddr); ulong visorchannel_get_nbytes(struct visorchannel *channel) { - return channel->size; + return channel->nbytes; } EXPORT_SYMBOL_GPL(visorchannel_get_nbytes); -- cgit v0.10.2 From 1366a3db3dcf4d64c5eb0621df79a3d1cf2da5da Mon Sep 17 00:00:00 2001 From: David Kershner Date: Mon, 4 Apr 2016 23:31:37 -0400 Subject: staging: unisys: visorbus: visorchipset_init clean up gotos Several error paths were not logging a message to s-Par during failure. Error paths in visorchipset_init() were corrected so that they now all do proper clean-ups. This made it necessary to move the function visorchipset_file_cleanup() above visorchipset_init so it can be referenced. Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index afcd291..0583b51 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -2290,16 +2290,25 @@ visorchipset_file_init(dev_t major_dev, struct visorchannel **controlvm_channel) return 0; } +static void +visorchipset_file_cleanup(dev_t major_dev) +{ + if (file_cdev.ops) + cdev_del(&file_cdev); + file_cdev.ops = NULL; + unregister_chrdev_region(major_dev, 1); +} + static int visorchipset_init(struct acpi_device *acpi_device) { - int rc = 0; + int err = -ENODEV; u64 addr; uuid_le uuid = SPAR_CONTROLVM_CHANNEL_PROTOCOL_UUID; addr = controlvm_get_channel_address(); if (!addr) - return -ENODEV; + goto error; memset(&busdev_notifiers, 0, sizeof(busdev_notifiers)); memset(&controlvm_payload_info, 0, sizeof(controlvm_payload_info)); @@ -2307,22 +2316,19 @@ visorchipset_init(struct acpi_device *acpi_device) controlvm_channel = visorchannel_create_with_lock(addr, 0, GFP_KERNEL, uuid); if (!controlvm_channel) - return -ENODEV; + goto error; + if (SPAR_CONTROLVM_CHANNEL_OK_CLIENT( visorchannel_get_header(controlvm_channel))) { initialize_controlvm_payload(); } else { - visorchannel_destroy(controlvm_channel); - controlvm_channel = NULL; - return -ENODEV; + goto error_destroy_channel; } major_dev = MKDEV(visorchipset_major, 0); - rc = visorchipset_file_init(major_dev, &controlvm_channel); - if (rc < 0) { - POSTCODE_LINUX_2(CHIPSET_INIT_FAILURE_PC, DIAG_SEVERITY_ERR); - goto cleanup; - } + err = visorchipset_file_init(major_dev, &controlvm_channel); + if (err < 0) + goto error_destroy_payload; memset(&g_chipset_msg_hdr, 0, sizeof(struct controlvm_message_header)); @@ -2341,27 +2347,33 @@ visorchipset_init(struct acpi_device *acpi_device) visorchipset_platform_device.dev.devt = major_dev; if (platform_device_register(&visorchipset_platform_device) < 0) { POSTCODE_LINUX_2(DEVICE_REGISTER_FAILURE_PC, DIAG_SEVERITY_ERR); - rc = -ENODEV; - goto cleanup; + err = -ENODEV; + goto error_cancel_work; } POSTCODE_LINUX_2(CHIPSET_INIT_SUCCESS_PC, POSTCODE_SEVERITY_INFO); - rc = visorbus_init(); -cleanup: - if (rc) { - POSTCODE_LINUX_3(CHIPSET_INIT_FAILURE_PC, rc, - POSTCODE_SEVERITY_ERR); - } - return rc; -} + err = visorbus_init(); + if (err < 0) + goto error_unregister; -static void -visorchipset_file_cleanup(dev_t major_dev) -{ - if (file_cdev.ops) - cdev_del(&file_cdev); - file_cdev.ops = NULL; - unregister_chrdev_region(major_dev, 1); + return 0; + +error_unregister: + platform_device_unregister(&visorchipset_platform_device); + +error_cancel_work: + cancel_delayed_work_sync(&periodic_controlvm_work); + visorchipset_file_cleanup(major_dev); + +error_destroy_payload: + destroy_controlvm_payload_info(&controlvm_payload_info); + +error_destroy_channel: + visorchannel_destroy(controlvm_channel); + +error: + POSTCODE_LINUX_3(CHIPSET_INIT_FAILURE_PC, err, POSTCODE_SEVERITY_ERR); + return err; } static int -- cgit v0.10.2 From 3cb3fa3b7914cd1e3e576059d3034db5c8f3c894 Mon Sep 17 00:00:00 2001 From: David Kershner Date: Mon, 4 Apr 2016 23:31:38 -0400 Subject: staging: unisys: visorbus: device_epilog: clean up gotos The away flag is ambiguous, rename it to out and appropriately call the correct goto. Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 0583b51..a22aec4 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -1041,30 +1041,30 @@ device_epilog(struct visor_device *dev_info, bool need_response, bool for_visorbus) { struct visorchipset_busdev_notifiers *notifiers; - bool notified = false; struct controlvm_message_header *pmsg_hdr = NULL; notifiers = &busdev_notifiers; + down(¬ifier_lock); if (!dev_info) { /* relying on a valid passed in response code */ /* be lazy and re-use msg_hdr for this failure, is this ok?? */ pmsg_hdr = msg_hdr; - goto away; + goto out_respond_and_unlock; } if (dev_info->pending_msg_hdr) { /* only non-NULL if dev is still waiting on a response */ response = -CONTROLVM_RESP_ERROR_MESSAGE_ID_INVALID_FOR_CLIENT; pmsg_hdr = dev_info->pending_msg_hdr; - goto away; + goto out_respond_and_unlock; } if (need_response) { pmsg_hdr = kzalloc(sizeof(*pmsg_hdr), GFP_KERNEL); if (!pmsg_hdr) { response = -CONTROLVM_RESP_ERROR_KMALLOC_FAILED; - goto away; + goto out_respond_and_unlock; } memcpy(pmsg_hdr, msg_hdr, @@ -1072,13 +1072,12 @@ device_epilog(struct visor_device *dev_info, dev_info->pending_msg_hdr = pmsg_hdr; } - down(¬ifier_lock); if (response >= 0) { switch (cmd) { case CONTROLVM_DEVICE_CREATE: if (notifiers->device_create) { (*notifiers->device_create) (dev_info); - notified = true; + goto out_unlock; } break; case CONTROLVM_DEVICE_CHANGESTATE: @@ -1088,7 +1087,7 @@ device_epilog(struct visor_device *dev_info, segment_state_running.operating) { if (notifiers->device_resume) { (*notifiers->device_resume) (dev_info); - notified = true; + goto out_unlock; } } /* ServerNotReady / ServerLost / SegmentStateStandby */ @@ -1100,32 +1099,23 @@ device_epilog(struct visor_device *dev_info, */ if (notifiers->device_pause) { (*notifiers->device_pause) (dev_info); - notified = true; + goto out_unlock; } } break; case CONTROLVM_DEVICE_DESTROY: if (notifiers->device_destroy) { (*notifiers->device_destroy) (dev_info); - notified = true; + goto out_unlock; } break; } } -away: - if (notified) - /* The callback function just called above is responsible - * for calling the appropriate visorchipset_busdev_responders - * function, which will call device_responder() - */ - ; - else - /* - * Do not kfree(pmsg_hdr) as this is the failure path. - * The success path ('notified') will call the responder - * directly and kfree() there. - */ - device_responder(cmd, pmsg_hdr, response); + +out_respond_and_unlock: + device_responder(cmd, pmsg_hdr, response); + +out_unlock: up(¬ifier_lock); } -- cgit v0.10.2 From 4a185e54e15cbde6df85669b0af53db0575e17d0 Mon Sep 17 00:00:00 2001 From: David Kershner Date: Mon, 4 Apr 2016 23:31:39 -0400 Subject: staging: unisys: visorbus: make bus_epilog match device_epilog The paths in bus_epilog should match device_epilog. Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index a22aec4..c1b872c 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -965,7 +965,6 @@ bus_epilog(struct visor_device *bus_info, u32 cmd, struct controlvm_message_header *msg_hdr, int response, bool need_response) { - bool notified = false; struct controlvm_message_header *pmsg_hdr = NULL; down(¬ifier_lock); @@ -1003,32 +1002,20 @@ bus_epilog(struct visor_device *bus_info, case CONTROLVM_BUS_CREATE: if (busdev_notifiers.bus_create) { (*busdev_notifiers.bus_create) (bus_info); - notified = true; + goto out_unlock; } break; case CONTROLVM_BUS_DESTROY: if (busdev_notifiers.bus_destroy) { (*busdev_notifiers.bus_destroy) (bus_info); - notified = true; + goto out_unlock; } break; } } out_respond_and_unlock: - if (notified) - /* The callback function just called above is responsible - * for calling the appropriate visorchipset_busdev_responders - * function, which will call bus_responder() - */ - ; - else - /* - * Do not kfree(pmsg_hdr) as this is the failure path. - * The success path ('notified') will call the responder - * directly and kfree() there. - */ - bus_responder(cmd, pmsg_hdr, response); + bus_responder(cmd, pmsg_hdr, response); out_unlock: up(¬ifier_lock); -- cgit v0.10.2 From d2de2ffff5d36a6e38753cf4f9d6bd35b83bd6c5 Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Wed, 6 Apr 2016 11:20:21 -0400 Subject: staging: unisys: removed unused 'visor_device.respond_to_device_create' The respond_to_device_create flag was used previously when we used to delay responses to create requests until the drivers were finished loading. This behaviour was removed some time ago, yet the field still existed, while never being referenced or even initialized. Signed-off-by: Alexander Curtin Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index 3788d16..db59d97 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -134,7 +134,6 @@ struct visor_device { struct list_head list_all; struct periodic_work *periodic_work; bool being_removed; - bool responded_to_device_create; /* the code will detect and behave appropriately) */ struct semaphore visordriver_callback_lock; bool pausing; -- cgit v0.10.2 From 6fac083b8df8450af4550238faa104396ccecf13 Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Fri, 8 Apr 2016 08:48:05 -0400 Subject: staging: unisys: visorinput: remove erroneous 'FIXME' comments These comments were mistakenly carried forward by a previous copy/paste. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorinput/visorinput.c b/drivers/staging/unisys/visorinput/visorinput.c index 3299cf50..dc94261 100644 --- a/drivers/staging/unisys/visorinput/visorinput.c +++ b/drivers/staging/unisys/visorinput/visorinput.c @@ -123,9 +123,9 @@ static const unsigned char visorkbd_keycode[KEYCODE_TABLE_BYTES] = { [38] = KEY_L, [39] = KEY_SEMICOLON, [40] = KEY_APOSTROPHE, - [41] = KEY_GRAVE, /* FIXME, '#' */ + [41] = KEY_GRAVE, [42] = KEY_LEFTSHIFT, - [43] = KEY_BACKSLASH, /* FIXME, '~' */ + [43] = KEY_BACKSLASH, [44] = KEY_Z, [45] = KEY_X, [46] = KEY_C, @@ -173,7 +173,7 @@ static const unsigned char visorkbd_keycode[KEYCODE_TABLE_BYTES] = { [88] = KEY_F12, [90] = KEY_KPLEFTPAREN, [91] = KEY_KPRIGHTPAREN, - [92] = KEY_KPASTERISK, /* FIXME */ + [92] = KEY_KPASTERISK, [93] = KEY_KPASTERISK, [94] = KEY_KPPLUS, [95] = KEY_HELP, -- cgit v0.10.2 From 4145ba76b1f7f3296cc673c299084145e1267029 Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Fri, 8 Apr 2016 09:21:10 -0400 Subject: staging: unisys: visornic: prevent double-unlock of priv_lock Previously, devdata->priv_lock was being unlocked in visornic_serverdown() both before calling visornic_serverdown_complete(), then again at the end of the function. This bug was corrected. The structure of visornic_serverdown() was also improved to make it easier to follow and to decrease the chance that such bugs will be introduced again. The main-path logic now falls thru down the left-side of the page, with a common error-exit point to handle error conditions. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c index 763738d..0ec952a 100644 --- a/drivers/staging/unisys/visornic/visornic_main.c +++ b/drivers/staging/unisys/visornic/visornic_main.c @@ -356,28 +356,38 @@ visornic_serverdown(struct visornic_devdata *devdata, visorbus_state_complete_func complete_func) { unsigned long flags; + int err; spin_lock_irqsave(&devdata->priv_lock, flags); - if (!devdata->server_down && !devdata->server_change_state) { - if (devdata->going_away) { - spin_unlock_irqrestore(&devdata->priv_lock, flags); - dev_dbg(&devdata->dev->device, - "%s aborting because device removal pending\n", - __func__); - return -ENODEV; - } - devdata->server_change_state = true; - devdata->server_down_complete_func = complete_func; - spin_unlock_irqrestore(&devdata->priv_lock, flags); - visornic_serverdown_complete(devdata); - } else if (devdata->server_change_state) { + if (devdata->server_change_state) { dev_dbg(&devdata->dev->device, "%s changing state\n", __func__); - spin_unlock_irqrestore(&devdata->priv_lock, flags); - return -EINVAL; + err = -EINVAL; + goto err_unlock; + } + if (devdata->server_down) { + dev_dbg(&devdata->dev->device, "%s already down\n", + __func__); + err = -EINVAL; + goto err_unlock; } + if (devdata->going_away) { + dev_dbg(&devdata->dev->device, + "%s aborting because device removal pending\n", + __func__); + err = -ENODEV; + goto err_unlock; + } + devdata->server_change_state = true; + devdata->server_down_complete_func = complete_func; spin_unlock_irqrestore(&devdata->priv_lock, flags); + + visornic_serverdown_complete(devdata); return 0; + +err_unlock: + spin_unlock_irqrestore(&devdata->priv_lock, flags); + return err; } /** -- cgit v0.10.2 From 77c4ad2d6a9bb6c6744f8f3a25d1c62669d6b656 Mon Sep 17 00:00:00 2001 From: Daniel Baluta Date: Fri, 15 Apr 2016 18:06:56 +0300 Subject: iio: imu: Add initial support for Bosch BMI160 BMI160 is an Inertial Measurement Unit (IMU) which provides acceleration and angular rate measurement. It also offers a secondary I2C interface for connecting a magnetometer sensor (usually BMM160). Current driver offers support for accelerometer and gyroscope readings via sysfs or via buffer interface using an external trigger (e.g. hrtimer). Data is retrieved from IMU via I2C or SPI interface. Datasheet is at: http://www.mouser.com/ds/2/783/BST-BMI160-DS000-07-786474.pdf Signed-off-by: Daniel Baluta Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/imu/Kconfig b/drivers/iio/imu/Kconfig index 5e610f7..1f1ad41 100644 --- a/drivers/iio/imu/Kconfig +++ b/drivers/iio/imu/Kconfig @@ -25,6 +25,8 @@ config ADIS16480 Say yes here to build support for Analog Devices ADIS16375, ADIS16480, ADIS16485, ADIS16488 inertial sensors. +source "drivers/iio/imu/bmi160/Kconfig" + config KMX61 tristate "Kionix KMX61 6-axis accelerometer and magnetometer" depends on I2C diff --git a/drivers/iio/imu/Makefile b/drivers/iio/imu/Makefile index e1e6e3d..c71bcd3 100644 --- a/drivers/iio/imu/Makefile +++ b/drivers/iio/imu/Makefile @@ -13,6 +13,7 @@ adis_lib-$(CONFIG_IIO_ADIS_LIB_BUFFER) += adis_trigger.o adis_lib-$(CONFIG_IIO_ADIS_LIB_BUFFER) += adis_buffer.o obj-$(CONFIG_IIO_ADIS_LIB) += adis_lib.o +obj-y += bmi160/ obj-y += inv_mpu6050/ obj-$(CONFIG_KMX61) += kmx61.o diff --git a/drivers/iio/imu/bmi160/Kconfig b/drivers/iio/imu/bmi160/Kconfig new file mode 100644 index 0000000..005c17c --- /dev/null +++ b/drivers/iio/imu/bmi160/Kconfig @@ -0,0 +1,32 @@ +# +# BMI160 IMU driver +# + +config BMI160 + tristate + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER + +config BMI160_I2C + tristate "Bosch BMI160 I2C driver" + depends on I2C + select BMI160 + select REGMAP_I2C + help + If you say yes here you get support for BMI160 IMU on I2C with + accelerometer, gyroscope and external BMG160 magnetometer. + + This driver can also be built as a module. If so, the module will be + called bmi160_i2c. + +config BMI160_SPI + tristate "Bosch BMI160 SPI driver" + depends on SPI + select BMI160 + select REGMAP_SPI + help + If you say yes here you get support for BMI160 IMU on SPI with + accelerometer, gyroscope and external BMG160 magnetometer. + + This driver can also be built as a module. If so, the module will be + called bmi160_spi. diff --git a/drivers/iio/imu/bmi160/Makefile b/drivers/iio/imu/bmi160/Makefile new file mode 100644 index 0000000..10365e4 --- /dev/null +++ b/drivers/iio/imu/bmi160/Makefile @@ -0,0 +1,6 @@ +# +# Makefile for Bosch BMI160 IMU +# +obj-$(CONFIG_BMI160) += bmi160_core.o +obj-$(CONFIG_BMI160_I2C) += bmi160_i2c.o +obj-$(CONFIG_BMI160_SPI) += bmi160_spi.o diff --git a/drivers/iio/imu/bmi160/bmi160.h b/drivers/iio/imu/bmi160/bmi160.h new file mode 100644 index 0000000..d2ae6ed --- /dev/null +++ b/drivers/iio/imu/bmi160/bmi160.h @@ -0,0 +1,10 @@ +#ifndef BMI160_H_ +#define BMI160_H_ + +extern const struct regmap_config bmi160_regmap_config; + +int bmi160_core_probe(struct device *dev, struct regmap *regmap, + const char *name, bool use_spi); +void bmi160_core_remove(struct device *dev); + +#endif /* BMI160_H_ */ diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c new file mode 100644 index 0000000..0bf92b0 --- /dev/null +++ b/drivers/iio/imu/bmi160/bmi160_core.c @@ -0,0 +1,596 @@ +/* + * BMI160 - Bosch IMU (accel, gyro plus external magnetometer) + * + * Copyright (c) 2016, Intel Corporation. + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * IIO core driver for BMI160, with support for I2C/SPI busses + * + * TODO: magnetometer, interrupts, hardware FIFO + */ +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "bmi160.h" + +#define BMI160_REG_CHIP_ID 0x00 +#define BMI160_CHIP_ID_VAL 0xD1 + +#define BMI160_REG_PMU_STATUS 0x03 + +/* X axis data low byte address, the rest can be obtained using axis offset */ +#define BMI160_REG_DATA_MAGN_XOUT_L 0x04 +#define BMI160_REG_DATA_GYRO_XOUT_L 0x0C +#define BMI160_REG_DATA_ACCEL_XOUT_L 0x12 + +#define BMI160_REG_ACCEL_CONFIG 0x40 +#define BMI160_ACCEL_CONFIG_ODR_MASK GENMASK(3, 0) +#define BMI160_ACCEL_CONFIG_BWP_MASK GENMASK(6, 4) + +#define BMI160_REG_ACCEL_RANGE 0x41 +#define BMI160_ACCEL_RANGE_2G 0x03 +#define BMI160_ACCEL_RANGE_4G 0x05 +#define BMI160_ACCEL_RANGE_8G 0x08 +#define BMI160_ACCEL_RANGE_16G 0x0C + +#define BMI160_REG_GYRO_CONFIG 0x42 +#define BMI160_GYRO_CONFIG_ODR_MASK GENMASK(3, 0) +#define BMI160_GYRO_CONFIG_BWP_MASK GENMASK(5, 4) + +#define BMI160_REG_GYRO_RANGE 0x43 +#define BMI160_GYRO_RANGE_2000DPS 0x00 +#define BMI160_GYRO_RANGE_1000DPS 0x01 +#define BMI160_GYRO_RANGE_500DPS 0x02 +#define BMI160_GYRO_RANGE_250DPS 0x03 +#define BMI160_GYRO_RANGE_125DPS 0x04 + +#define BMI160_REG_CMD 0x7E +#define BMI160_CMD_ACCEL_PM_SUSPEND 0x10 +#define BMI160_CMD_ACCEL_PM_NORMAL 0x11 +#define BMI160_CMD_ACCEL_PM_LOW_POWER 0x12 +#define BMI160_CMD_GYRO_PM_SUSPEND 0x14 +#define BMI160_CMD_GYRO_PM_NORMAL 0x15 +#define BMI160_CMD_GYRO_PM_FAST_STARTUP 0x17 +#define BMI160_CMD_SOFTRESET 0xB6 + +#define BMI160_REG_DUMMY 0x7F + +#define BMI160_ACCEL_PMU_MIN_USLEEP 3200 +#define BMI160_ACCEL_PMU_MAX_USLEEP 3800 +#define BMI160_GYRO_PMU_MIN_USLEEP 55000 +#define BMI160_GYRO_PMU_MAX_USLEEP 80000 +#define BMI160_SOFTRESET_USLEEP 1000 + +#define BMI160_CHANNEL(_type, _axis, _index) { \ + .type = _type, \ + .modified = 1, \ + .channel2 = IIO_MOD_##_axis, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \ + BIT(IIO_CHAN_INFO_SAMP_FREQ), \ + .scan_index = _index, \ + .scan_type = { \ + .sign = 's', \ + .realbits = 16, \ + .storagebits = 16, \ + .endianness = IIO_LE, \ + }, \ +} + +/* scan indexes follow DATA register order */ +enum bmi160_scan_axis { + BMI160_SCAN_EXT_MAGN_X = 0, + BMI160_SCAN_EXT_MAGN_Y, + BMI160_SCAN_EXT_MAGN_Z, + BMI160_SCAN_RHALL, + BMI160_SCAN_GYRO_X, + BMI160_SCAN_GYRO_Y, + BMI160_SCAN_GYRO_Z, + BMI160_SCAN_ACCEL_X, + BMI160_SCAN_ACCEL_Y, + BMI160_SCAN_ACCEL_Z, + BMI160_SCAN_TIMESTAMP, +}; + +enum bmi160_sensor_type { + BMI160_ACCEL = 0, + BMI160_GYRO, + BMI160_EXT_MAGN, + BMI160_NUM_SENSORS /* must be last */ +}; + +struct bmi160_data { + struct regmap *regmap; +}; + +const struct regmap_config bmi160_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; +EXPORT_SYMBOL(bmi160_regmap_config); + +struct bmi160_regs { + u8 data; /* LSB byte register for X-axis */ + u8 config; + u8 config_odr_mask; + u8 config_bwp_mask; + u8 range; + u8 pmu_cmd_normal; + u8 pmu_cmd_suspend; +}; + +static struct bmi160_regs bmi160_regs[] = { + [BMI160_ACCEL] = { + .data = BMI160_REG_DATA_ACCEL_XOUT_L, + .config = BMI160_REG_ACCEL_CONFIG, + .config_odr_mask = BMI160_ACCEL_CONFIG_ODR_MASK, + .config_bwp_mask = BMI160_ACCEL_CONFIG_BWP_MASK, + .range = BMI160_REG_ACCEL_RANGE, + .pmu_cmd_normal = BMI160_CMD_ACCEL_PM_NORMAL, + .pmu_cmd_suspend = BMI160_CMD_ACCEL_PM_SUSPEND, + }, + [BMI160_GYRO] = { + .data = BMI160_REG_DATA_GYRO_XOUT_L, + .config = BMI160_REG_GYRO_CONFIG, + .config_odr_mask = BMI160_GYRO_CONFIG_ODR_MASK, + .config_bwp_mask = BMI160_GYRO_CONFIG_BWP_MASK, + .range = BMI160_REG_GYRO_RANGE, + .pmu_cmd_normal = BMI160_CMD_GYRO_PM_NORMAL, + .pmu_cmd_suspend = BMI160_CMD_GYRO_PM_SUSPEND, + }, +}; + +struct bmi160_pmu_time { + unsigned long min; + unsigned long max; +}; + +static struct bmi160_pmu_time bmi160_pmu_time[] = { + [BMI160_ACCEL] = { + .min = BMI160_ACCEL_PMU_MIN_USLEEP, + .max = BMI160_ACCEL_PMU_MAX_USLEEP + }, + [BMI160_GYRO] = { + .min = BMI160_GYRO_PMU_MIN_USLEEP, + .max = BMI160_GYRO_PMU_MIN_USLEEP, + }, +}; + +struct bmi160_scale { + u8 bits; + int uscale; +}; + +struct bmi160_odr { + u8 bits; + int odr; + int uodr; +}; + +static const struct bmi160_scale bmi160_accel_scale[] = { + { BMI160_ACCEL_RANGE_2G, 598}, + { BMI160_ACCEL_RANGE_4G, 1197}, + { BMI160_ACCEL_RANGE_8G, 2394}, + { BMI160_ACCEL_RANGE_16G, 4788}, +}; + +static const struct bmi160_scale bmi160_gyro_scale[] = { + { BMI160_GYRO_RANGE_2000DPS, 1065}, + { BMI160_GYRO_RANGE_1000DPS, 532}, + { BMI160_GYRO_RANGE_500DPS, 266}, + { BMI160_GYRO_RANGE_250DPS, 133}, + { BMI160_GYRO_RANGE_125DPS, 66}, +}; + +struct bmi160_scale_item { + const struct bmi160_scale *tbl; + int num; +}; + +static const struct bmi160_scale_item bmi160_scale_table[] = { + [BMI160_ACCEL] = { + .tbl = bmi160_accel_scale, + .num = ARRAY_SIZE(bmi160_accel_scale), + }, + [BMI160_GYRO] = { + .tbl = bmi160_gyro_scale, + .num = ARRAY_SIZE(bmi160_gyro_scale), + }, +}; + +static const struct bmi160_odr bmi160_accel_odr[] = { + {0x01, 0, 78125}, + {0x02, 1, 5625}, + {0x03, 3, 125}, + {0x04, 6, 25}, + {0x05, 12, 5}, + {0x06, 25, 0}, + {0x07, 50, 0}, + {0x08, 100, 0}, + {0x09, 200, 0}, + {0x0A, 400, 0}, + {0x0B, 800, 0}, + {0x0C, 1600, 0}, +}; + +static const struct bmi160_odr bmi160_gyro_odr[] = { + {0x06, 25, 0}, + {0x07, 50, 0}, + {0x08, 100, 0}, + {0x09, 200, 0}, + {0x0A, 400, 0}, + {0x0B, 8000, 0}, + {0x0C, 1600, 0}, + {0x0D, 3200, 0}, +}; + +struct bmi160_odr_item { + const struct bmi160_odr *tbl; + int num; +}; + +static const struct bmi160_odr_item bmi160_odr_table[] = { + [BMI160_ACCEL] = { + .tbl = bmi160_accel_odr, + .num = ARRAY_SIZE(bmi160_accel_odr), + }, + [BMI160_GYRO] = { + .tbl = bmi160_gyro_odr, + .num = ARRAY_SIZE(bmi160_gyro_odr), + }, +}; + +static const struct iio_chan_spec bmi160_channels[] = { + BMI160_CHANNEL(IIO_ACCEL, X, BMI160_SCAN_ACCEL_X), + BMI160_CHANNEL(IIO_ACCEL, Y, BMI160_SCAN_ACCEL_Y), + BMI160_CHANNEL(IIO_ACCEL, Z, BMI160_SCAN_ACCEL_Z), + BMI160_CHANNEL(IIO_ANGL_VEL, X, BMI160_SCAN_GYRO_X), + BMI160_CHANNEL(IIO_ANGL_VEL, Y, BMI160_SCAN_GYRO_Y), + BMI160_CHANNEL(IIO_ANGL_VEL, Z, BMI160_SCAN_GYRO_Z), + IIO_CHAN_SOFT_TIMESTAMP(BMI160_SCAN_TIMESTAMP), +}; + +static enum bmi160_sensor_type bmi160_to_sensor(enum iio_chan_type iio_type) +{ + switch (iio_type) { + case IIO_ACCEL: + return BMI160_ACCEL; + case IIO_ANGL_VEL: + return BMI160_GYRO; + default: + return -EINVAL; + } +} + +static +int bmi160_set_mode(struct bmi160_data *data, enum bmi160_sensor_type t, + bool mode) +{ + int ret; + u8 cmd; + + if (mode) + cmd = bmi160_regs[t].pmu_cmd_normal; + else + cmd = bmi160_regs[t].pmu_cmd_suspend; + + ret = regmap_write(data->regmap, BMI160_REG_CMD, cmd); + if (ret < 0) + return ret; + + usleep_range(bmi160_pmu_time[t].min, bmi160_pmu_time[t].max); + + return 0; +} + +static +int bmi160_set_scale(struct bmi160_data *data, enum bmi160_sensor_type t, + int uscale) +{ + int i; + + for (i = 0; i < bmi160_scale_table[t].num; i++) + if (bmi160_scale_table[t].tbl[i].uscale == uscale) + break; + + if (i == bmi160_scale_table[t].num) + return -EINVAL; + + return regmap_write(data->regmap, bmi160_regs[t].range, + bmi160_scale_table[t].tbl[i].bits); +} + +static +int bmi160_get_scale(struct bmi160_data *data, enum bmi160_sensor_type t, + int *uscale) +{ + int i, ret, val; + + ret = regmap_read(data->regmap, bmi160_regs[t].range, &val); + if (ret < 0) + return ret; + + for (i = 0; i < bmi160_scale_table[t].num; i++) + if (bmi160_scale_table[t].tbl[i].bits == val) { + *uscale = bmi160_scale_table[t].tbl[i].uscale; + return 0; + } + + return -EINVAL; +} + +static int bmi160_get_data(struct bmi160_data *data, int chan_type, + int axis, int *val) +{ + u8 reg; + int ret; + __le16 sample; + enum bmi160_sensor_type t = bmi160_to_sensor(chan_type); + + reg = bmi160_regs[t].data + (axis - IIO_MOD_X) * sizeof(__le16); + + ret = regmap_bulk_read(data->regmap, reg, &sample, sizeof(__le16)); + if (ret < 0) + return ret; + + *val = sign_extend32(le16_to_cpu(sample), 15); + + return 0; +} + +static +int bmi160_set_odr(struct bmi160_data *data, enum bmi160_sensor_type t, + int odr, int uodr) +{ + int i; + + for (i = 0; i < bmi160_odr_table[t].num; i++) + if (bmi160_odr_table[t].tbl[i].odr == odr && + bmi160_odr_table[t].tbl[i].uodr == uodr) + break; + + if (i >= bmi160_odr_table[t].num) + return -EINVAL; + + return regmap_update_bits(data->regmap, + bmi160_regs[t].config, + bmi160_odr_table[t].tbl[i].bits, + bmi160_regs[t].config_odr_mask); +} + +static int bmi160_get_odr(struct bmi160_data *data, enum bmi160_sensor_type t, + int *odr, int *uodr) +{ + int i, val, ret; + + ret = regmap_read(data->regmap, bmi160_regs[t].config, &val); + if (ret < 0) + return ret; + + val &= bmi160_regs[t].config_odr_mask; + + for (i = 0; i < bmi160_odr_table[t].num; i++) + if (val == bmi160_odr_table[t].tbl[i].bits) + break; + + if (i >= bmi160_odr_table[t].num) + return -EINVAL; + + *odr = bmi160_odr_table[t].tbl[i].odr; + *uodr = bmi160_odr_table[t].tbl[i].uodr; + + return 0; +} + +static irqreturn_t bmi160_trigger_handler(int irq, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct bmi160_data *data = iio_priv(indio_dev); + s16 buf[16]; /* 3 sens x 3 axis x s16 + 3 x s16 pad + 4 x s16 tstamp */ + int i, ret, j = 0, base = BMI160_REG_DATA_MAGN_XOUT_L; + __le16 sample; + + for_each_set_bit(i, indio_dev->active_scan_mask, + indio_dev->masklength) { + ret = regmap_bulk_read(data->regmap, base + i * sizeof(__le16), + &sample, sizeof(__le16)); + if (ret < 0) + goto done; + buf[j++] = sample; + } + + iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns()); +done: + iio_trigger_notify_done(indio_dev->trig); + return IRQ_HANDLED; +} + +static int bmi160_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + int ret; + struct bmi160_data *data = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = bmi160_get_data(data, chan->type, chan->channel2, val); + if (ret < 0) + return ret; + return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + *val = 0; + ret = bmi160_get_scale(data, + bmi160_to_sensor(chan->type), val2); + return ret < 0 ? ret : IIO_VAL_INT_PLUS_MICRO; + case IIO_CHAN_INFO_SAMP_FREQ: + ret = bmi160_get_odr(data, bmi160_to_sensor(chan->type), + val, val2); + return ret < 0 ? ret : IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } + + return 0; +} + +static int bmi160_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct bmi160_data *data = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_SCALE: + return bmi160_set_scale(data, + bmi160_to_sensor(chan->type), val2); + break; + case IIO_CHAN_INFO_SAMP_FREQ: + return bmi160_set_odr(data, bmi160_to_sensor(chan->type), + val, val2); + default: + return -EINVAL; + } + + return 0; +} + +static const struct iio_info bmi160_info = { + .driver_module = THIS_MODULE, + .read_raw = bmi160_read_raw, + .write_raw = bmi160_write_raw, +}; + +static const char *bmi160_match_acpi_device(struct device *dev) +{ + const struct acpi_device_id *id; + + id = acpi_match_device(dev->driver->acpi_match_table, dev); + if (!id) + return NULL; + + return dev_name(dev); +} + +static int bmi160_chip_init(struct bmi160_data *data, bool use_spi) +{ + int ret; + unsigned int val; + struct device *dev = regmap_get_device(data->regmap); + + ret = regmap_write(data->regmap, BMI160_REG_CMD, BMI160_CMD_SOFTRESET); + if (ret < 0) + return ret; + + usleep_range(BMI160_SOFTRESET_USLEEP, BMI160_SOFTRESET_USLEEP + 1); + + /* + * CS rising edge is needed before starting SPI, so do a dummy read + * See Section 3.2.1, page 86 of the datasheet + */ + if (use_spi) { + ret = regmap_read(data->regmap, BMI160_REG_DUMMY, &val); + if (ret < 0) + return ret; + } + + ret = regmap_read(data->regmap, BMI160_REG_CHIP_ID, &val); + if (ret < 0) { + dev_err(dev, "Error reading chip id\n"); + return ret; + } + if (val != BMI160_CHIP_ID_VAL) { + dev_err(dev, "Wrong chip id, got %x expected %x\n", + val, BMI160_CHIP_ID_VAL); + return -ENODEV; + } + + ret = bmi160_set_mode(data, BMI160_ACCEL, true); + if (ret < 0) + return ret; + + ret = bmi160_set_mode(data, BMI160_GYRO, true); + if (ret < 0) + return ret; + + return 0; +} + +static void bmi160_chip_uninit(struct bmi160_data *data) +{ + bmi160_set_mode(data, BMI160_GYRO, false); + bmi160_set_mode(data, BMI160_ACCEL, false); +} + +int bmi160_core_probe(struct device *dev, struct regmap *regmap, + const char *name, bool use_spi) +{ + struct iio_dev *indio_dev; + struct bmi160_data *data; + int ret; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + dev_set_drvdata(dev, indio_dev); + data->regmap = regmap; + + ret = bmi160_chip_init(data, use_spi); + if (ret < 0) + return ret; + + if (!name && ACPI_HANDLE(dev)) + name = bmi160_match_acpi_device(dev); + + indio_dev->dev.parent = dev; + indio_dev->channels = bmi160_channels; + indio_dev->num_channels = ARRAY_SIZE(bmi160_channels); + indio_dev->name = name; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->info = &bmi160_info; + + ret = iio_triggered_buffer_setup(indio_dev, NULL, + bmi160_trigger_handler, NULL); + if (ret < 0) + goto uninit; + + ret = iio_device_register(indio_dev); + if (ret < 0) + goto buffer_cleanup; + + return 0; +buffer_cleanup: + iio_triggered_buffer_cleanup(indio_dev); +uninit: + bmi160_chip_uninit(data); + return ret; +} +EXPORT_SYMBOL_GPL(bmi160_core_probe); + +void bmi160_core_remove(struct device *dev) +{ + struct iio_dev *indio_dev = dev_get_drvdata(dev); + struct bmi160_data *data = iio_priv(indio_dev); + + iio_device_unregister(indio_dev); + iio_triggered_buffer_cleanup(indio_dev); + bmi160_chip_uninit(data); +} +EXPORT_SYMBOL_GPL(bmi160_core_remove); + +MODULE_AUTHOR("Daniel Baluta +#include +#include +#include + +#include "bmi160.h" + +static int bmi160_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct regmap *regmap; + const char *name = NULL; + + regmap = devm_regmap_init_i2c(client, &bmi160_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&client->dev, "Failed to register i2c regmap %d\n", + (int)PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + if (id) + name = id->name; + + return bmi160_core_probe(&client->dev, regmap, name, false); +} + +static int bmi160_i2c_remove(struct i2c_client *client) +{ + bmi160_core_remove(&client->dev); + + return 0; +} + +static const struct i2c_device_id bmi160_i2c_id[] = { + {"bmi160", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, bmi160_i2c_id); + +static const struct acpi_device_id bmi160_acpi_match[] = { + {"BMI0160", 0}, + { }, +}; +MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match); + +static struct i2c_driver bmi160_i2c_driver = { + .driver = { + .name = "bmi160_i2c", + .acpi_match_table = ACPI_PTR(bmi160_acpi_match), + }, + .probe = bmi160_i2c_probe, + .remove = bmi160_i2c_remove, + .id_table = bmi160_i2c_id, +}; +module_i2c_driver(bmi160_i2c_driver); + +MODULE_AUTHOR("Daniel Baluta "); +MODULE_DESCRIPTION("BMI160 I2C driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/imu/bmi160/bmi160_spi.c b/drivers/iio/imu/bmi160/bmi160_spi.c new file mode 100644 index 0000000..1ec8b12 --- /dev/null +++ b/drivers/iio/imu/bmi160/bmi160_spi.c @@ -0,0 +1,63 @@ +/* + * BMI160 - Bosch IMU, SPI bits + * + * Copyright (c) 2016, Intel Corporation. + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + */ +#include +#include +#include +#include + +#include "bmi160.h" + +static int bmi160_spi_probe(struct spi_device *spi) +{ + struct regmap *regmap; + const struct spi_device_id *id = spi_get_device_id(spi); + + regmap = devm_regmap_init_spi(spi, &bmi160_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&spi->dev, "Failed to register spi regmap %d\n", + (int)PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + return bmi160_core_probe(&spi->dev, regmap, id->name, true); +} + +static int bmi160_spi_remove(struct spi_device *spi) +{ + bmi160_core_remove(&spi->dev); + + return 0; +} + +static const struct spi_device_id bmi160_spi_id[] = { + {"bmi160", 0}, + {} +}; +MODULE_DEVICE_TABLE(spi, bmi160_spi_id); + +static const struct acpi_device_id bmi160_acpi_match[] = { + {"BMI0160", 0}, + { }, +}; +MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match); + +static struct spi_driver bmi160_spi_driver = { + .probe = bmi160_spi_probe, + .remove = bmi160_spi_remove, + .id_table = bmi160_spi_id, + .driver = { + .acpi_match_table = ACPI_PTR(bmi160_acpi_match), + .name = "bmi160_spi", + }, +}; +module_spi_driver(bmi160_spi_driver); + +MODULE_AUTHOR("Daniel Baluta Date: Thu, 14 Apr 2016 21:36:33 +0200 Subject: iio: light apds9960: fix wrong use of brace This fixes the error reported by checkpatch.pl: ERROR: that open brace { should be on the previous line Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c index f6a07dc..47fcd5a 100644 --- a/drivers/iio/light/apds9960.c +++ b/drivers/iio/light/apds9960.c @@ -321,8 +321,12 @@ static const struct iio_chan_spec apds9960_channels[] = { }; /* integration time in us */ -static const int apds9960_int_time[][2] = - { {28000, 246}, {100000, 219}, {200000, 182}, {700000, 0} }; +static const int apds9960_int_time[][2] = { + { 28000, 246}, + {100000, 219}, + {200000, 182}, + {700000, 0} +}; /* gain mapping */ static const int apds9960_pxs_gain_map[] = {1, 2, 4, 8}; -- cgit v0.10.2 From fc0b81704f0458c20793e82a3c094a215833dcfe Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Thu, 14 Apr 2016 21:36:34 +0200 Subject: iio: inkern: add a missing space before if This fixes the error reported by checkpatch.pl: ERROR: space required before the open parenthesis '(' Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 734a004..2fc7928 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -452,7 +452,7 @@ static int iio_channel_read(struct iio_channel *chan, int *val, int *val2, if (val2 == NULL) val2 = &unused; - if(!iio_channel_has_info(chan->channel, info)) + if (!iio_channel_has_info(chan->channel, info)) return -EINVAL; if (chan->indio_dev->info->read_raw_multi) { -- cgit v0.10.2 From 37dd441e4fe2d4b38e88d067175f1fc7d6acdf16 Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Thu, 14 Apr 2016 21:36:35 +0200 Subject: iio: adc: vf610_adc: fix case label indent This fixes the error reported by checkpatch.pl: ERROR: switch and case should be at the same indent Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c index b10f629..653bf13 100644 --- a/drivers/iio/adc/vf610_adc.c +++ b/drivers/iio/adc/vf610_adc.c @@ -714,19 +714,19 @@ static int vf610_write_raw(struct iio_dev *indio_dev, int i; switch (mask) { - case IIO_CHAN_INFO_SAMP_FREQ: - for (i = 0; - i < ARRAY_SIZE(info->sample_freq_avail); - i++) - if (val == info->sample_freq_avail[i]) { - info->adc_feature.sample_rate = i; - vf610_adc_sample_set(info); - return 0; - } - break; + case IIO_CHAN_INFO_SAMP_FREQ: + for (i = 0; + i < ARRAY_SIZE(info->sample_freq_avail); + i++) + if (val == info->sample_freq_avail[i]) { + info->adc_feature.sample_rate = i; + vf610_adc_sample_set(info); + return 0; + } + break; - default: - break; + default: + break; } return -EINVAL; -- cgit v0.10.2 From 038a8b34d375b31a001198f5405f41cb48a153de Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Thu, 14 Apr 2016 21:36:36 +0200 Subject: iio: adc: mcp3422: remove spaces before comma This fixes the error reported by checkpatch.pl: ERROR: space prohibited before that ',' (ctx:WxW) Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c index d7b36ef..d1172dc 100644 --- a/drivers/iio/adc/mcp3422.c +++ b/drivers/iio/adc/mcp3422.c @@ -61,9 +61,9 @@ static const int mcp3422_scales[4][4] = { { 1000000, 500000, 250000, 125000 }, - { 250000 , 125000, 62500 , 31250 }, - { 62500 , 31250 , 15625 , 7812 }, - { 15625 , 7812 , 3906 , 1953 } }; + { 250000, 125000, 62500, 31250 }, + { 62500, 31250, 15625, 7812 }, + { 15625, 7812, 3906, 1953 } }; /* Constant msleep times for data acquisitions */ static const int mcp3422_read_times[4] = { -- cgit v0.10.2 From 4c79dd006b6489a62516e6db636d91e71fd8bee1 Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Thu, 14 Apr 2016 21:36:37 +0200 Subject: iio: adc: at91_adc: fix errors reported by checkpatch.pl This fixes the errors reported by checkpatch.pl: ERROR: space prohibited before that ',' (ctx:WxW) ERROR: code indent should use tabs where possible Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index f284cd6..52430ba 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -797,8 +797,8 @@ static u32 calc_startup_ticks_9x5(u32 startup_time, u32 adc_clk_khz) * Startup Time = / ADC Clock */ const int startup_lookup[] = { - 0 , 8 , 16 , 24 , - 64 , 80 , 96 , 112, + 0, 8, 16, 24, + 64, 80, 96, 112, 512, 576, 640, 704, 768, 832, 896, 960 }; @@ -924,14 +924,14 @@ static int at91_adc_probe_dt(struct at91_adc_state *st, ret = -EINVAL; goto error_ret; } - trig->name = name; + trig->name = name; if (of_property_read_u32(trig_node, "trigger-value", &prop)) { dev_err(&idev->dev, "Missing trigger-value property in the DT.\n"); ret = -EINVAL; goto error_ret; } - trig->value = prop; + trig->value = prop; trig->is_external = of_property_read_bool(trig_node, "trigger-external"); i++; } -- cgit v0.10.2 From 102447adfa5a11df57ba1dfeefa250c96bf5e94f Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Thu, 14 Apr 2016 21:36:38 +0200 Subject: iio: adc: ad799x: remove space before comma This fixes the error reported by checkpatch.pl: ERROR: space prohibited before that ',' (ctx:WxW) Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c index 01d7158..a3f5254 100644 --- a/drivers/iio/adc/ad799x.c +++ b/drivers/iio/adc/ad799x.c @@ -477,7 +477,7 @@ static int ad799x_read_event_value(struct iio_dev *indio_dev, if (ret < 0) return ret; *val = (ret >> chan->scan_type.shift) & - GENMASK(chan->scan_type.realbits - 1 , 0); + GENMASK(chan->scan_type.realbits - 1, 0); return IIO_VAL_INT; } -- cgit v0.10.2 From f6aa8eaf5d301b213f4660d1a37b44b5f1c2c458 Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Thu, 14 Apr 2016 21:36:39 +0200 Subject: iio: common: ms_sensors: use tab for indention This fixes the error reported by checkpatch.pl: ERROR: code indent should use tabs where possible Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/common/ms_sensors/ms_sensors_i2c.c b/drivers/iio/common/ms_sensors/ms_sensors_i2c.c index 669dc7c..ecf7721 100644 --- a/drivers/iio/common/ms_sensors/ms_sensors_i2c.c +++ b/drivers/iio/common/ms_sensors/ms_sensors_i2c.c @@ -106,7 +106,7 @@ int ms_sensors_convert_and_read(void *cli, u8 conv, u8 rd, unsigned int delay, u32 *adc) { int ret; - __be32 buf = 0; + __be32 buf = 0; struct i2c_client *client = (struct i2c_client *)cli; /* Trigger conversion */ -- cgit v0.10.2 From d23057e0cadc465911968a4d3f8b0b556f545b6e Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Thu, 14 Apr 2016 21:36:40 +0200 Subject: iio: common: hid-sensors: use tab for indention This fixes the error reported by checkpatch.pl: ERROR: code indent should use tabs where possible Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c index 5955110..5b41f9d 100644 --- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c +++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c @@ -115,7 +115,7 @@ int hid_sensor_power_state(struct hid_sensor_common *st, bool state) return ret; } - return 0; + return 0; #else atomic_set(&st->user_requested_state, state); return _hid_sensor_power_state(st, state); -- cgit v0.10.2 From 26b89d7d2b22e3b7ae78dc8e5e17e0e4e9d448ca Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Thu, 14 Apr 2016 21:36:41 +0200 Subject: iio: magnetometer: ak8975: put else and brace at the same line This fixes the error reported by checkpatch.pl: ERROR: else should follow close brace '}' Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 1e68981..a2aac50 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -882,8 +882,7 @@ static int ak8975_probe(struct i2c_client *client, name = ak8975_match_acpi_device(&client->dev, &chipset); if (!name) return -ENODEV; - } - else + } else return -ENOSYS; if (chipset >= AK_MAX_TYPE) { -- cgit v0.10.2 From 964d97bdab7d81bb65453d84ed3a51f4605a7e9c Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Sat, 16 Apr 2016 13:38:49 +0100 Subject: iio: pressure: ms5611: use tab for indention This fixes the errors reported by checkpatch.pl: ERROR: code indent should use tabs where possible Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c index c4e6586..76578b0 100644 --- a/drivers/iio/pressure/ms5611_core.c +++ b/drivers/iio/pressure/ms5611_core.c @@ -429,7 +429,7 @@ static void ms5611_fini(const struct iio_dev *indio_dev) } int ms5611_probe(struct iio_dev *indio_dev, struct device *dev, - const char *name, int type) + const char *name, int type) { int ret; struct ms5611_state *st = iio_priv(indio_dev); diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c index 7600483..932e050 100644 --- a/drivers/iio/pressure/ms5611_spi.c +++ b/drivers/iio/pressure/ms5611_spi.c @@ -108,7 +108,7 @@ static int ms5611_spi_probe(struct spi_device *spi) st->client = spi; return ms5611_probe(indio_dev, &spi->dev, spi_get_device_id(spi)->name, - spi_get_device_id(spi)->driver_data); + spi_get_device_id(spi)->driver_data); } static int ms5611_spi_remove(struct spi_device *spi) -- cgit v0.10.2 From af8a41271b56f6d79cb4d7c7f3ca688a2d97a801 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 15 Apr 2016 16:59:38 +0200 Subject: iio:adis: Add support for manual self-test flag clear Some variants of the devices from the ADIS family don't auto-clear the self-test bit after the self-test has completed. Instead we have to manually clear. Add support for this to the ADIS library. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/imu/adis.c b/drivers/iio/imu/adis.c index 911255d..ad6f91d 100644 --- a/drivers/iio/imu/adis.c +++ b/drivers/iio/imu/adis.c @@ -324,7 +324,12 @@ static int adis_self_test(struct adis *adis) msleep(adis->data->startup_delay); - return adis_check_status(adis); + ret = adis_check_status(adis); + + if (adis->data->self_test_no_autoclear) + adis_write_reg_16(adis, adis->data->msc_ctrl_reg, 0x00); + + return ret; } /** diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h index fa2d01e..360da7d 100644 --- a/include/linux/iio/imu/adis.h +++ b/include/linux/iio/imu/adis.h @@ -41,6 +41,7 @@ struct adis_data { unsigned int diag_stat_reg; unsigned int self_test_mask; + bool self_test_no_autoclear; unsigned int startup_delay; const char * const *status_error_msgs; -- cgit v0.10.2 From 24410492868ba816bfd4366b5406d4881b8aee94 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 15 Apr 2016 16:59:39 +0200 Subject: staging:iio:adis16201: Set self_test_no_autoclear flag The ADIS16201 does not automatically clear the self test flag bit the self test has been, so clear it manually. Otherwise we'll see a offset caused by the self-test bias on the output values during normal operation. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/adis16201_core.c b/drivers/staging/iio/accel/adis16201_core.c index 06c0b75..6f3f8ff 100644 --- a/drivers/staging/iio/accel/adis16201_core.c +++ b/drivers/staging/iio/accel/adis16201_core.c @@ -167,6 +167,7 @@ static const struct adis_data adis16201_data = { .diag_stat_reg = ADIS16201_DIAG_STAT, .self_test_mask = ADIS16201_MSC_CTRL_SELF_TEST_EN, + .self_test_no_autoclear = true, .startup_delay = ADIS16201_STARTUP_DELAY, .status_error_msgs = adis16201_status_error_msgs, -- cgit v0.10.2 From 26d96e8ea9912d9fc7c48339ed6cf5642390ffff Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 15 Apr 2016 16:59:40 +0200 Subject: staging:iio:adis16203: Set self_test_no_autoclear flag The ADIS16201 does not automatically clear the self test flag bit the self test has been, so clear it manually. Otherwise we'll see a offset caused by the self-test bias on the output values during normal operation. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/adis16203_core.c b/drivers/staging/iio/accel/adis16203_core.c index de5b84a..c706717 100644 --- a/drivers/staging/iio/accel/adis16203_core.c +++ b/drivers/staging/iio/accel/adis16203_core.c @@ -134,6 +134,7 @@ static const struct adis_data adis16203_data = { .diag_stat_reg = ADIS16203_DIAG_STAT, .self_test_mask = ADIS16203_MSC_CTRL_SELF_TEST_EN, + .self_test_no_autoclear = true, .startup_delay = ADIS16203_STARTUP_DELAY, .status_error_msgs = adis16203_status_error_msgs, -- cgit v0.10.2 From 5d116edd71f688d0acc442ad8e66903e26d15d0b Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 15 Apr 2016 16:59:41 +0200 Subject: staging:iio:adis16209: Set self_test_no_autoclear flag The ADIS16201 does not automatically clear the self test flag bit the self test has been, so clear it manually. Otherwise we'll see a offset caused by the self-test bias on the output values during normal operation. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/adis16209_core.c b/drivers/staging/iio/accel/adis16209_core.c index 8b42bf8..8dbad58 100644 --- a/drivers/staging/iio/accel/adis16209_core.c +++ b/drivers/staging/iio/accel/adis16209_core.c @@ -168,6 +168,7 @@ static const struct adis_data adis16209_data = { .diag_stat_reg = ADIS16209_DIAG_STAT, .self_test_mask = ADIS16209_MSC_CTRL_SELF_TEST_EN, + .self_test_no_autoclear = true, .startup_delay = ADIS16209_STARTUP_DELAY, .status_error_msgs = adis16209_status_error_msgs, -- cgit v0.10.2 From 87a048ef959dc72148196141f0b8b6ff71991ac9 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 15 Apr 2016 16:59:42 +0200 Subject: staging:iio:adis16240: Set self_test_no_autoclear flag The ADIS16201 does not automatically clear the self test flag bit the self test has been, so clear it manually. Otherwise we'll see a offset caused by the self-test bias on the output values during normal operation. Signed-off-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron diff --git a/drivers/staging/iio/accel/adis16240_core.c b/drivers/staging/iio/accel/adis16240_core.c index a425e18..d5b99e6 100644 --- a/drivers/staging/iio/accel/adis16240_core.c +++ b/drivers/staging/iio/accel/adis16240_core.c @@ -222,6 +222,7 @@ static const struct adis_data adis16240_data = { .diag_stat_reg = ADIS16240_DIAG_STAT, .self_test_mask = ADIS16240_MSC_CTRL_SELF_TEST_EN, + .self_test_no_autoclear = true, .startup_delay = ADIS16240_STARTUP_DELAY, .status_error_msgs = adis16240_status_error_msgs, -- cgit v0.10.2 From aa0eb886be79eb785bf675bd8031ec1611d3295a Mon Sep 17 00:00:00 2001 From: Ksenija Stanojevic Date: Sun, 10 Apr 2016 21:20:56 +0200 Subject: iio: adc: Indent if statement Indent lines inside if statement. Signed-off-by: Ksenija Stanojevic Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/mxs-lradc.c b/drivers/iio/adc/mxs-lradc.c index 33051b8..07287af 100644 --- a/drivers/iio/adc/mxs-lradc.c +++ b/drivers/iio/adc/mxs-lradc.c @@ -1500,9 +1500,10 @@ static int mxs_lradc_hw_init(struct mxs_lradc *lradc) mxs_lradc_reg_clear(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, LRADC_CTRL0); - if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE) - mxs_lradc_reg_set(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, - LRADC_CTRL0); + if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE) + mxs_lradc_reg_set(lradc, + LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, + LRADC_CTRL0); } /* Start internal temperature sensing. */ -- cgit v0.10.2 From 1f0477f18306c018a954e4f333690a9d0f7efc76 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 11 Apr 2016 14:12:04 +0200 Subject: iio: light: new driver for the ROHM BH1780 This is a reimplementation of the old misc device driver for the ROHM BH1780 ambient light sensor (drivers/misc/bh1780gli.c). Differences from the old driver: - Uses the IIO framework - Uses runtime PM to idle the hardware after 5 seconds - No weird custom power management from userspace - No homebrewn values in sysfs This uses the same (undocumented) device tree compatible-string as the old driver ("rohm,bh1780gli"). Cc: Arnd Bergmann Cc: Ulf Hansson Cc: Daniel Mack Cc: Peter Meerwald-Stadler Signed-off-by: Linus Walleij Reviewed-by: Ulf Hansson Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index cfd3df8..5ee1d45 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -73,6 +73,17 @@ config BH1750 To compile this driver as a module, choose M here: the module will be called bh1750. +config BH1780 + tristate "ROHM BH1780 ambient light sensor" + depends on I2C + depends on !SENSORS_BH1780 + help + Say Y here to build support for the ROHM BH1780GLI ambient + light sensor. + + To compile this driver as a module, choose M here: the module will + be called bh1780. + config CM32181 depends on I2C tristate "CM32181 driver" diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile index b2c3105..4aeee2b 100644 --- a/drivers/iio/light/Makefile +++ b/drivers/iio/light/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_AL3320A) += al3320a.o obj-$(CONFIG_APDS9300) += apds9300.o obj-$(CONFIG_APDS9960) += apds9960.o obj-$(CONFIG_BH1750) += bh1750.o +obj-$(CONFIG_BH1780) += bh1780.o obj-$(CONFIG_CM32181) += cm32181.o obj-$(CONFIG_CM3232) += cm3232.o obj-$(CONFIG_CM3323) += cm3323.o diff --git a/drivers/iio/light/bh1780.c b/drivers/iio/light/bh1780.c new file mode 100644 index 0000000..72b364e --- /dev/null +++ b/drivers/iio/light/bh1780.c @@ -0,0 +1,297 @@ +/* + * ROHM 1780GLI Ambient Light Sensor Driver + * + * Copyright (C) 2016 Linaro Ltd. + * Author: Linus Walleij + * Loosely based on the previous BH1780 ALS misc driver + * Copyright (C) 2010 Texas Instruments + * Author: Hemanth V + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define BH1780_CMD_BIT BIT(7) +#define BH1780_REG_CONTROL 0x00 +#define BH1780_REG_PARTID 0x0A +#define BH1780_REG_MANFID 0x0B +#define BH1780_REG_DLOW 0x0C +#define BH1780_REG_DHIGH 0x0D + +#define BH1780_REVMASK GENMASK(3,0) +#define BH1780_POWMASK GENMASK(1,0) +#define BH1780_POFF (0x0) +#define BH1780_PON (0x3) + +/* power on settling time in ms */ +#define BH1780_PON_DELAY 2 +/* max time before value available in ms */ +#define BH1780_INTERVAL 250 + +struct bh1780_data { + struct i2c_client *client; +}; + +static int bh1780_write(struct bh1780_data *bh1780, u8 reg, u8 val) +{ + int ret = i2c_smbus_write_byte_data(bh1780->client, + BH1780_CMD_BIT | reg, + val); + if (ret < 0) + dev_err(&bh1780->client->dev, + "i2c_smbus_write_byte_data failed error " + "%d, register %01x\n", + ret, reg); + return ret; +} + +static int bh1780_read(struct bh1780_data *bh1780, u8 reg) +{ + int ret = i2c_smbus_read_byte_data(bh1780->client, + BH1780_CMD_BIT | reg); + if (ret < 0) + dev_err(&bh1780->client->dev, + "i2c_smbus_read_byte_data failed error " + "%d, register %01x\n", + ret, reg); + return ret; +} + +static int bh1780_read_word(struct bh1780_data *bh1780, u8 reg) +{ + int ret = i2c_smbus_read_word_data(bh1780->client, + BH1780_CMD_BIT | reg); + if (ret < 0) + dev_err(&bh1780->client->dev, + "i2c_smbus_read_word_data failed error " + "%d, register %01x\n", + ret, reg); + return ret; +} + +static int bh1780_debugfs_reg_access(struct iio_dev *indio_dev, + unsigned int reg, unsigned int writeval, + unsigned int *readval) +{ + struct bh1780_data *bh1780 = iio_priv(indio_dev); + int ret; + + if (!readval) + bh1780_write(bh1780, (u8)reg, (u8)writeval); + + ret = bh1780_read(bh1780, (u8)reg); + if (ret < 0) + return ret; + + *readval = ret; + + return 0; +} + +static int bh1780_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct bh1780_data *bh1780 = iio_priv(indio_dev); + int value; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + switch (chan->type) { + case IIO_LIGHT: + pm_runtime_get_sync(&bh1780->client->dev); + value = bh1780_read_word(bh1780, BH1780_REG_DLOW); + if (value < 0) + return value; + pm_runtime_mark_last_busy(&bh1780->client->dev); + pm_runtime_put_autosuspend(&bh1780->client->dev); + *val = value; + + return IIO_VAL_INT; + default: + return -EINVAL; + } + case IIO_CHAN_INFO_INT_TIME: + *val = 0; + *val2 = BH1780_INTERVAL * 1000; + return IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } +} + +static const struct iio_info bh1780_info = { + .driver_module = THIS_MODULE, + .read_raw = bh1780_read_raw, + .debugfs_reg_access = bh1780_debugfs_reg_access, +}; + +static const struct iio_chan_spec bh1780_channels[] = { + { + .type = IIO_LIGHT, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_INT_TIME) + } +}; + +static int bh1780_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int ret; + struct bh1780_data *bh1780; + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct iio_dev *indio_dev; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE)) + return -EIO; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*bh1780)); + if (!indio_dev) + return -ENOMEM; + + bh1780 = iio_priv(indio_dev); + bh1780->client = client; + i2c_set_clientdata(client, indio_dev); + + /* Power up the device */ + ret = bh1780_write(bh1780, BH1780_REG_CONTROL, BH1780_PON); + if (ret < 0) + return ret; + msleep(BH1780_PON_DELAY); + pm_runtime_get_noresume(&client->dev); + pm_runtime_set_active(&client->dev); + pm_runtime_enable(&client->dev); + + ret = bh1780_read(bh1780, BH1780_REG_PARTID); + if (ret < 0) + goto out_disable_pm; + dev_info(&client->dev, + "Ambient Light Sensor, Rev : %lu\n", + (ret & BH1780_REVMASK)); + + /* + * As the device takes 250 ms to even come up with a fresh + * measurement after power-on, do not shut it down unnecessarily. + * Set autosuspend to a five seconds. + */ + pm_runtime_set_autosuspend_delay(&client->dev, 5000); + pm_runtime_use_autosuspend(&client->dev); + pm_runtime_put(&client->dev); + + indio_dev->dev.parent = &client->dev; + indio_dev->info = &bh1780_info; + indio_dev->name = id->name; + indio_dev->channels = bh1780_channels; + indio_dev->num_channels = ARRAY_SIZE(bh1780_channels); + indio_dev->modes = INDIO_DIRECT_MODE; + + ret = iio_device_register(indio_dev); + if (ret) + goto out_disable_pm; + return 0; + +out_disable_pm: + pm_runtime_put_noidle(&client->dev); + pm_runtime_disable(&client->dev); + return ret; +} + +static int bh1780_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct bh1780_data *bh1780 = iio_priv(indio_dev); + int ret; + + iio_device_unregister(indio_dev); + pm_runtime_get_sync(&client->dev); + pm_runtime_put_noidle(&client->dev); + pm_runtime_disable(&client->dev); + ret = bh1780_write(bh1780, BH1780_REG_CONTROL, BH1780_POFF); + if (ret < 0) { + dev_err(&client->dev, "failed to power off\n"); + return ret; + } + + return 0; +} + +#ifdef CONFIG_PM +static int bh1780_runtime_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct bh1780_data *bh1780 = i2c_get_clientdata(client); + int ret; + + ret = bh1780_write(bh1780, BH1780_REG_CONTROL, BH1780_POFF); + if (ret < 0) { + dev_err(dev, "failed to runtime suspend\n"); + return ret; + } + + return 0; +} + +static int bh1780_runtime_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct bh1780_data *bh1780 = i2c_get_clientdata(client); + int ret; + + ret = bh1780_write(bh1780, BH1780_REG_CONTROL, BH1780_PON); + if (ret < 0) { + dev_err(dev, "failed to runtime resume\n"); + return ret; + } + + /* Wait for power on, then for a value to be available */ + msleep(BH1780_PON_DELAY + BH1780_INTERVAL); + + return 0; +} +#endif /* CONFIG_PM */ + +static const struct dev_pm_ops bh1780_dev_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) + SET_RUNTIME_PM_OPS(bh1780_runtime_suspend, + bh1780_runtime_resume, NULL) +}; + +static const struct i2c_device_id bh1780_id[] = { + { "bh1780", 0 }, + { }, +}; + +MODULE_DEVICE_TABLE(i2c, bh1780_id); + +#ifdef CONFIG_OF +static const struct of_device_id of_bh1780_match[] = { + { .compatible = "rohm,bh1780gli", }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_bh1780_match); +#endif + +static struct i2c_driver bh1780_driver = { + .probe = bh1780_probe, + .remove = bh1780_remove, + .id_table = bh1780_id, + .driver = { + .name = "bh1780", + .pm = &bh1780_dev_pm_ops, + .of_match_table = of_match_ptr(of_bh1780_match), + }, +}; + +module_i2c_driver(bh1780_driver); + +MODULE_DESCRIPTION("ROHM BH1780GLI Ambient Light Sensor Driver"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Linus Walleij "); -- cgit v0.10.2 From 98a52530ed51394848079e7952c1145bd49fbe7d Mon Sep 17 00:00:00 2001 From: Slawomir Stepien Date: Thu, 14 Apr 2016 17:40:24 +0200 Subject: iio: frequency: ad9523: use unsigned int rather then bare unsigned This fix checkpatch warnings: WARNING: Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: Slawomir Stepien Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c index 44a30f2..99eba52 100644 --- a/drivers/iio/frequency/ad9523.c +++ b/drivers/iio/frequency/ad9523.c @@ -284,7 +284,7 @@ struct ad9523_state { } data[2] ____cacheline_aligned; }; -static int ad9523_read(struct iio_dev *indio_dev, unsigned addr) +static int ad9523_read(struct iio_dev *indio_dev, unsigned int addr) { struct ad9523_state *st = iio_priv(indio_dev); int ret; @@ -318,7 +318,8 @@ static int ad9523_read(struct iio_dev *indio_dev, unsigned addr) return ret; }; -static int ad9523_write(struct iio_dev *indio_dev, unsigned addr, unsigned val) +static int ad9523_write(struct iio_dev *indio_dev, + unsigned int addr, unsigned int val) { struct ad9523_state *st = iio_priv(indio_dev); int ret; @@ -351,11 +352,11 @@ static int ad9523_io_update(struct iio_dev *indio_dev) } static int ad9523_vco_out_map(struct iio_dev *indio_dev, - unsigned ch, unsigned out) + unsigned int ch, unsigned int out) { struct ad9523_state *st = iio_priv(indio_dev); int ret; - unsigned mask; + unsigned int mask; switch (ch) { case 0 ... 3: @@ -405,7 +406,7 @@ static int ad9523_vco_out_map(struct iio_dev *indio_dev, } static int ad9523_set_clock_provider(struct iio_dev *indio_dev, - unsigned ch, unsigned long freq) + unsigned int ch, unsigned long freq) { struct ad9523_state *st = iio_priv(indio_dev); long tmp1, tmp2; @@ -619,7 +620,7 @@ static int ad9523_read_raw(struct iio_dev *indio_dev, long m) { struct ad9523_state *st = iio_priv(indio_dev); - unsigned code; + unsigned int code; int ret; mutex_lock(&indio_dev->mlock); @@ -655,7 +656,7 @@ static int ad9523_write_raw(struct iio_dev *indio_dev, long mask) { struct ad9523_state *st = iio_priv(indio_dev); - unsigned reg; + unsigned int reg; int ret, tmp, code; mutex_lock(&indio_dev->mlock); @@ -709,8 +710,8 @@ out: } static int ad9523_reg_access(struct iio_dev *indio_dev, - unsigned reg, unsigned writeval, - unsigned *readval) + unsigned int reg, unsigned int writeval, + unsigned int *readval) { int ret; -- cgit v0.10.2 From a6b5ec887b85df039055be316420b1520c23eb6b Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Mon, 11 Apr 2016 17:24:26 +0300 Subject: ti-adc081c: Add support for adc101c and adc121c These chips have an almost identical interface but support a different number of value bits. Datasheet links for comparison: * http://www.ti.com/lit/ds/symlink/adc081c021.pdf * http://www.ti.com/lit/ds/symlink/adc101c021.pdf * http://www.ti.com/lit/ds/symlink/adc121c021.pdf Signed-off-by: Crestez Dan Leonard Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 5937030..25378c5 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -385,11 +385,11 @@ config ROCKCHIP_SARADC module will be called rockchip_saradc. config TI_ADC081C - tristate "Texas Instruments ADC081C021/027" + tristate "Texas Instruments ADC081C/ADC101C/ADC121C family" depends on I2C help - If you say yes here you get support for Texas Instruments ADC081C021 - and ADC081C027 ADC chips. + If you say yes here you get support for Texas Instruments ADC081C, + ADC101C and ADC121C ADC chips. This driver can also be built as a module. If so, the module will be called ti-adc081c. diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c index ecbc121..b977340 100644 --- a/drivers/iio/adc/ti-adc081c.c +++ b/drivers/iio/adc/ti-adc081c.c @@ -1,9 +1,21 @@ /* + * TI ADC081C/ADC101C/ADC121C 8/10/12-bit ADC driver + * * Copyright (C) 2012 Avionic Design GmbH + * Copyright (C) 2016 Intel * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. + * + * Datasheets: + * http://www.ti.com/lit/ds/symlink/adc081c021.pdf + * http://www.ti.com/lit/ds/symlink/adc101c021.pdf + * http://www.ti.com/lit/ds/symlink/adc121c021.pdf + * + * The devices have a very similar interface and differ mostly in the number of + * bits handled. For the 8-bit and 10-bit models the least-significant 4 or 2 + * bits of value registers are reserved. */ #include @@ -17,6 +29,9 @@ struct adc081c { struct i2c_client *i2c; struct regulator *ref; + + /* 8, 10 or 12 */ + int bits; }; #define REG_CONV_RES 0x00 @@ -34,7 +49,7 @@ static int adc081c_read_raw(struct iio_dev *iio, if (err < 0) return err; - *value = (err >> 4) & 0xff; + *value = (err & 0xFFF) >> (12 - adc->bits); return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: @@ -43,7 +58,7 @@ static int adc081c_read_raw(struct iio_dev *iio, return err; *value = err / 1000; - *shift = 8; + *shift = adc->bits; return IIO_VAL_FRACTIONAL_LOG2; @@ -60,6 +75,28 @@ static const struct iio_chan_spec adc081c_channel = { .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), }; +struct adcxx1c_model { + int bits; +}; + +#define ADCxx1C_MODEL(_bits) \ + { \ + .bits = (_bits), \ + } + +/* Model ids are indexes in _models array */ +enum adcxx1c_model_id { + ADC081C = 0, + ADC101C = 1, + ADC121C = 2, +}; + +static struct adcxx1c_model adcxx1c_models[] = { + ADCxx1C_MODEL( 8), + ADCxx1C_MODEL(10), + ADCxx1C_MODEL(12), +}; + static const struct iio_info adc081c_info = { .read_raw = adc081c_read_raw, .driver_module = THIS_MODULE, @@ -70,6 +107,7 @@ static int adc081c_probe(struct i2c_client *client, { struct iio_dev *iio; struct adc081c *adc; + struct adcxx1c_model *model = &adcxx1c_models[id->driver_data]; int err; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA)) @@ -81,6 +119,7 @@ static int adc081c_probe(struct i2c_client *client, adc = iio_priv(iio); adc->i2c = client; + adc->bits = model->bits; adc->ref = devm_regulator_get(&client->dev, "vref"); if (IS_ERR(adc->ref)) @@ -124,7 +163,9 @@ static int adc081c_remove(struct i2c_client *client) } static const struct i2c_device_id adc081c_id[] = { - { "adc081c", 0 }, + { "adc081c", ADC081C }, + { "adc101c", ADC101C }, + { "adc121c", ADC121C }, { } }; MODULE_DEVICE_TABLE(i2c, adc081c_id); @@ -132,6 +173,8 @@ MODULE_DEVICE_TABLE(i2c, adc081c_id); #ifdef CONFIG_OF static const struct of_device_id adc081c_of_match[] = { { .compatible = "ti,adc081c" }, + { .compatible = "ti,adc101c" }, + { .compatible = "ti,adc121c" }, { } }; MODULE_DEVICE_TABLE(of, adc081c_of_match); @@ -149,5 +192,5 @@ static struct i2c_driver adc081c_driver = { module_i2c_driver(adc081c_driver); MODULE_AUTHOR("Thierry Reding "); -MODULE_DESCRIPTION("Texas Instruments ADC081C021/027 driver"); +MODULE_DESCRIPTION("Texas Instruments ADC081C/ADC101C/ADC121C driver"); MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From 08e05d1fce5c87e5eaf16655c45db6beb4d93701 Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Mon, 11 Apr 2016 17:24:27 +0300 Subject: ti-adc081c: Initial triggered buffer support Using this requires software triggers like CONFIG_IIO_HRTIMER_TRIGGER. The device can be configured to do internal periodic sampling but does not offer some sort of interrupt on data ready. Interrupts can only trigger when values get out of a specific range. Signed-off-by: Crestez Dan Leonard Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c index b977340..9fd032d 100644 --- a/drivers/iio/adc/ti-adc081c.c +++ b/drivers/iio/adc/ti-adc081c.c @@ -24,6 +24,9 @@ #include #include +#include +#include +#include #include struct adc081c { @@ -69,21 +72,42 @@ static int adc081c_read_raw(struct iio_dev *iio, return -EINVAL; } -static const struct iio_chan_spec adc081c_channel = { - .type = IIO_VOLTAGE, - .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), -}; +#define ADCxx1C_CHAN(_bits) { \ + .type = IIO_VOLTAGE, \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .scan_type = { \ + .sign = 'u', \ + .realbits = (_bits), \ + .storagebits = 16, \ + .shift = 12 - (_bits), \ + .endianness = IIO_CPU, \ + }, \ +} + +#define DEFINE_ADCxx1C_CHANNELS(_name, _bits) \ + static const struct iio_chan_spec _name ## _channels[] = { \ + ADCxx1C_CHAN((_bits)), \ + IIO_CHAN_SOFT_TIMESTAMP(1), \ + }; \ + +#define ADC081C_NUM_CHANNELS 2 struct adcxx1c_model { + const struct iio_chan_spec* channels; int bits; }; -#define ADCxx1C_MODEL(_bits) \ +#define ADCxx1C_MODEL(_name, _bits) \ { \ + .channels = _name ## _channels, \ .bits = (_bits), \ } +DEFINE_ADCxx1C_CHANNELS(adc081c, 8); +DEFINE_ADCxx1C_CHANNELS(adc101c, 10); +DEFINE_ADCxx1C_CHANNELS(adc121c, 12); + /* Model ids are indexes in _models array */ enum adcxx1c_model_id { ADC081C = 0, @@ -92,9 +116,9 @@ enum adcxx1c_model_id { }; static struct adcxx1c_model adcxx1c_models[] = { - ADCxx1C_MODEL( 8), - ADCxx1C_MODEL(10), - ADCxx1C_MODEL(12), + ADCxx1C_MODEL(adc081c, 8), + ADCxx1C_MODEL(adc101c, 10), + ADCxx1C_MODEL(adc121c, 12), }; static const struct iio_info adc081c_info = { @@ -102,6 +126,24 @@ static const struct iio_info adc081c_info = { .driver_module = THIS_MODULE, }; +static irqreturn_t adc081c_trigger_handler(int irq, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct adc081c *data = iio_priv(indio_dev); + u16 buf[8]; /* 2 bytes data + 6 bytes padding + 8 bytes timestamp */ + int ret; + + ret = i2c_smbus_read_word_swapped(data->i2c, REG_CONV_RES); + if (ret < 0) + goto out; + buf[0] = ret; + iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns()); +out: + iio_trigger_notify_done(indio_dev->trig); + return IRQ_HANDLED; +} + static int adc081c_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -134,18 +176,26 @@ static int adc081c_probe(struct i2c_client *client, iio->modes = INDIO_DIRECT_MODE; iio->info = &adc081c_info; - iio->channels = &adc081c_channel; - iio->num_channels = 1; + iio->channels = model->channels; + iio->num_channels = ADC081C_NUM_CHANNELS; + + err = iio_triggered_buffer_setup(iio, NULL, adc081c_trigger_handler, NULL); + if (err < 0) { + dev_err(&client->dev, "iio triggered buffer setup failed\n"); + goto err_regulator_disable; + } err = iio_device_register(iio); if (err < 0) - goto regulator_disable; + goto err_buffer_cleanup; i2c_set_clientdata(client, iio); return 0; -regulator_disable: +err_buffer_cleanup: + iio_triggered_buffer_cleanup(iio); +err_regulator_disable: regulator_disable(adc->ref); return err; @@ -157,6 +207,7 @@ static int adc081c_remove(struct i2c_client *client) struct adc081c *adc = iio_priv(iio); iio_device_unregister(iio); + iio_triggered_buffer_cleanup(iio); regulator_disable(adc->ref); return 0; -- cgit v0.10.2 From 922b3aa6e74e4e1cac95cf4ab88ecc0fd5162c89 Mon Sep 17 00:00:00 2001 From: Ksenija Stanojevic Date: Sun, 10 Apr 2016 21:22:32 +0200 Subject: iio: adc: set INPUT_PROP_DIRECT Set INPUT_PROP_DIRECT to indicate that it is a touchscreen on the device to help userspace classify it. Signed-off-by: Ksenija Stanojevic Acked-by: Dmitry Torokhov Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/mxs-lradc.c b/drivers/iio/adc/mxs-lradc.c index 07287af..e4c4c5c 100644 --- a/drivers/iio/adc/mxs-lradc.c +++ b/drivers/iio/adc/mxs-lradc.c @@ -1127,6 +1127,7 @@ static int mxs_lradc_ts_register(struct mxs_lradc *lradc) __set_bit(EV_ABS, input->evbit); __set_bit(EV_KEY, input->evbit); __set_bit(BTN_TOUCH, input->keybit); + __set_bit(INPUT_PROP_DIRECT, input->propbit); input_set_abs_params(input, ABS_X, 0, LRADC_SINGLE_SAMPLE_MASK, 0, 0); input_set_abs_params(input, ABS_Y, 0, LRADC_SINGLE_SAMPLE_MASK, 0, 0); input_set_abs_params(input, ABS_PRESSURE, 0, LRADC_SINGLE_SAMPLE_MASK, -- cgit v0.10.2 From 761b7910d4b4f0e7d283873b701ca83beacd70a5 Mon Sep 17 00:00:00 2001 From: Daniel Baluta Date: Fri, 15 Apr 2016 17:13:09 +0300 Subject: iio: magn: Split bmc150 driver in common/i2c parts This is useful for easily adding SPI support in later patches. Now bmc150_magn exports core functions to be used by I2C/SPI drivers instances. For the moment only I2C driver is supported. Signed-off-by: Daniel Baluta Acked-by: Irina Tirdea Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig index d9834ed..4972f9d 100644 --- a/drivers/iio/magnetometer/Kconfig +++ b/drivers/iio/magnetometer/Kconfig @@ -27,22 +27,25 @@ config AK09911 Deprecated: AK09911 is now supported by AK8975 driver. config BMC150_MAGN - tristate "Bosch BMC150 Magnetometer Driver" - depends on I2C - select REGMAP_I2C + tristate select IIO_BUFFER select IIO_TRIGGERED_BUFFER - help - Say yes here to build support for the BMC150 magnetometer. - Currently this only supports the device via an i2c interface. +config BMC150_MAGN_I2C + tristate "Bosch BMC150 I2C Magnetometer Driver" + depends on I2C + select BMC150_MAGN + select REGMAP_I2C + help + Say yes here to build support for the BMC150 magnetometer with + I2C interface. This is a combo module with both accelerometer and magnetometer. This driver is only implementing magnetometer part, which has its own address and register map. To compile this driver as a module, choose M here: the module will be - called bmc150_magn. + called bmc150_magn_i2c. config MAG3110 tristate "Freescale MAG3110 3-Axis Magnetometer" diff --git a/drivers/iio/magnetometer/Makefile b/drivers/iio/magnetometer/Makefile index dd03fe5..5647773 100644 --- a/drivers/iio/magnetometer/Makefile +++ b/drivers/iio/magnetometer/Makefile @@ -5,6 +5,8 @@ # When adding new entries keep the list in alphabetical order obj-$(CONFIG_AK8975) += ak8975.o obj-$(CONFIG_BMC150_MAGN) += bmc150_magn.o +obj-$(CONFIG_BMC150_MAGN_I2C) += bmc150_magn_i2c.o + obj-$(CONFIG_MAG3110) += mag3110.o obj-$(CONFIG_HID_SENSOR_MAGNETOMETER_3D) += hid-sensor-magn-3d.o obj-$(CONFIG_MMC35240) += mmc35240.o diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c index 0e9da18..d104fb8 100644 --- a/drivers/iio/magnetometer/bmc150_magn.c +++ b/drivers/iio/magnetometer/bmc150_magn.c @@ -34,6 +34,8 @@ #include #include +#include "bmc150_magn.h" + #define BMC150_MAGN_DRV_NAME "bmc150_magn" #define BMC150_MAGN_IRQ_NAME "bmc150_magn_event" @@ -134,7 +136,7 @@ struct bmc150_magn_trim_regs { } __packed; struct bmc150_magn_data { - struct i2c_client *client; + struct device *dev; /* * 1. Protect this structure. * 2. Serialize sequences that power on/off the device and access HW. @@ -146,6 +148,7 @@ struct bmc150_magn_data { struct iio_trigger *dready_trig; bool dready_trigger_on; int max_odr; + int irq; }; static const struct { @@ -215,7 +218,7 @@ static bool bmc150_magn_is_volatile_reg(struct device *dev, unsigned int reg) } } -static const struct regmap_config bmc150_magn_regmap_config = { +const struct regmap_config bmc150_magn_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -225,6 +228,7 @@ static const struct regmap_config bmc150_magn_regmap_config = { .writeable_reg = bmc150_magn_is_writeable_reg, .volatile_reg = bmc150_magn_is_volatile_reg, }; +EXPORT_SYMBOL(bmc150_magn_regmap_config); static int bmc150_magn_set_power_mode(struct bmc150_magn_data *data, enum bmc150_magn_power_modes mode, @@ -263,17 +267,17 @@ static int bmc150_magn_set_power_state(struct bmc150_magn_data *data, bool on) int ret; if (on) { - ret = pm_runtime_get_sync(&data->client->dev); + ret = pm_runtime_get_sync(data->dev); } else { - pm_runtime_mark_last_busy(&data->client->dev); - ret = pm_runtime_put_autosuspend(&data->client->dev); + pm_runtime_mark_last_busy(data->dev); + ret = pm_runtime_put_autosuspend(data->dev); } if (ret < 0) { - dev_err(&data->client->dev, + dev_err(data->dev, "failed to change power state to %d\n", on); if (on) - pm_runtime_put_noidle(&data->client->dev); + pm_runtime_put_noidle(data->dev); return ret; } @@ -350,7 +354,7 @@ static int bmc150_magn_set_max_odr(struct bmc150_magn_data *data, int rep_xy, /* the maximum selectable read-out frequency from datasheet */ max_odr = 1000000 / (145 * rep_xy + 500 * rep_z + 980); if (odr > max_odr) { - dev_err(&data->client->dev, + dev_err(data->dev, "Can't set oversampling with sampling freq %d\n", odr); return -EINVAL; @@ -684,27 +688,27 @@ static int bmc150_magn_init(struct bmc150_magn_data *data) ret = bmc150_magn_set_power_mode(data, BMC150_MAGN_POWER_MODE_SUSPEND, false); if (ret < 0) { - dev_err(&data->client->dev, + dev_err(data->dev, "Failed to bring up device from suspend mode\n"); return ret; } ret = regmap_read(data->regmap, BMC150_MAGN_REG_CHIP_ID, &chip_id); if (ret < 0) { - dev_err(&data->client->dev, "Failed reading chip id\n"); + dev_err(data->dev, "Failed reading chip id\n"); goto err_poweroff; } if (chip_id != BMC150_MAGN_CHIP_ID_VAL) { - dev_err(&data->client->dev, "Invalid chip id 0x%x\n", chip_id); + dev_err(data->dev, "Invalid chip id 0x%x\n", chip_id); ret = -ENODEV; goto err_poweroff; } - dev_dbg(&data->client->dev, "Chip id %x\n", chip_id); + dev_dbg(data->dev, "Chip id %x\n", chip_id); preset = bmc150_magn_presets_table[BMC150_MAGN_DEFAULT_PRESET]; ret = bmc150_magn_set_odr(data, preset.odr); if (ret < 0) { - dev_err(&data->client->dev, "Failed to set ODR to %d\n", + dev_err(data->dev, "Failed to set ODR to %d\n", preset.odr); goto err_poweroff; } @@ -712,7 +716,7 @@ static int bmc150_magn_init(struct bmc150_magn_data *data) ret = regmap_write(data->regmap, BMC150_MAGN_REG_REP_XY, BMC150_MAGN_REPXY_TO_REGVAL(preset.rep_xy)); if (ret < 0) { - dev_err(&data->client->dev, "Failed to set REP XY to %d\n", + dev_err(data->dev, "Failed to set REP XY to %d\n", preset.rep_xy); goto err_poweroff; } @@ -720,7 +724,7 @@ static int bmc150_magn_init(struct bmc150_magn_data *data) ret = regmap_write(data->regmap, BMC150_MAGN_REG_REP_Z, BMC150_MAGN_REPZ_TO_REGVAL(preset.rep_z)); if (ret < 0) { - dev_err(&data->client->dev, "Failed to set REP Z to %d\n", + dev_err(data->dev, "Failed to set REP Z to %d\n", preset.rep_z); goto err_poweroff; } @@ -733,7 +737,7 @@ static int bmc150_magn_init(struct bmc150_magn_data *data) ret = bmc150_magn_set_power_mode(data, BMC150_MAGN_POWER_MODE_NORMAL, true); if (ret < 0) { - dev_err(&data->client->dev, "Failed to power on device\n"); + dev_err(data->dev, "Failed to power on device\n"); goto err_poweroff; } @@ -842,41 +846,33 @@ static const char *bmc150_magn_match_acpi_device(struct device *dev) return dev_name(dev); } -static int bmc150_magn_probe(struct i2c_client *client, - const struct i2c_device_id *id) +int bmc150_magn_probe(struct device *dev, struct regmap *regmap, + int irq, const char *name) { struct bmc150_magn_data *data; struct iio_dev *indio_dev; - const char *name = NULL; int ret; - indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); if (!indio_dev) return -ENOMEM; data = iio_priv(indio_dev); - i2c_set_clientdata(client, indio_dev); - data->client = client; + dev_set_drvdata(dev, indio_dev); + data->regmap = regmap; + data->irq = irq; + data->dev = dev; - if (id) - name = id->name; - else if (ACPI_HANDLE(&client->dev)) - name = bmc150_magn_match_acpi_device(&client->dev); - else - return -ENOSYS; + if (!name && ACPI_HANDLE(dev)) + name = bmc150_magn_match_acpi_device(dev); mutex_init(&data->mutex); - data->regmap = devm_regmap_init_i2c(client, &bmc150_magn_regmap_config); - if (IS_ERR(data->regmap)) { - dev_err(&client->dev, "Failed to allocate register map\n"); - return PTR_ERR(data->regmap); - } ret = bmc150_magn_init(data); if (ret < 0) return ret; - indio_dev->dev.parent = &client->dev; + indio_dev->dev.parent = dev; indio_dev->channels = bmc150_magn_channels; indio_dev->num_channels = ARRAY_SIZE(bmc150_magn_channels); indio_dev->available_scan_masks = bmc150_magn_scan_masks; @@ -884,35 +880,34 @@ static int bmc150_magn_probe(struct i2c_client *client, indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &bmc150_magn_info; - if (client->irq > 0) { - data->dready_trig = devm_iio_trigger_alloc(&client->dev, + if (irq > 0) { + data->dready_trig = devm_iio_trigger_alloc(dev, "%s-dev%d", indio_dev->name, indio_dev->id); if (!data->dready_trig) { ret = -ENOMEM; - dev_err(&client->dev, "iio trigger alloc failed\n"); + dev_err(dev, "iio trigger alloc failed\n"); goto err_poweroff; } - data->dready_trig->dev.parent = &client->dev; + data->dready_trig->dev.parent = dev; data->dready_trig->ops = &bmc150_magn_trigger_ops; iio_trigger_set_drvdata(data->dready_trig, indio_dev); ret = iio_trigger_register(data->dready_trig); if (ret) { - dev_err(&client->dev, "iio trigger register failed\n"); + dev_err(dev, "iio trigger register failed\n"); goto err_poweroff; } - ret = request_threaded_irq(client->irq, + ret = request_threaded_irq(irq, iio_trigger_generic_data_rdy_poll, NULL, IRQF_TRIGGER_RISING | IRQF_ONESHOT, BMC150_MAGN_IRQ_NAME, data->dready_trig); if (ret < 0) { - dev_err(&client->dev, "request irq %d failed\n", - client->irq); + dev_err(dev, "request irq %d failed\n", irq); goto err_trigger_unregister; } } @@ -922,34 +917,33 @@ static int bmc150_magn_probe(struct i2c_client *client, bmc150_magn_trigger_handler, &bmc150_magn_buffer_setup_ops); if (ret < 0) { - dev_err(&client->dev, - "iio triggered buffer setup failed\n"); + dev_err(dev, "iio triggered buffer setup failed\n"); goto err_free_irq; } - ret = pm_runtime_set_active(&client->dev); + ret = pm_runtime_set_active(dev); if (ret) goto err_buffer_cleanup; - pm_runtime_enable(&client->dev); - pm_runtime_set_autosuspend_delay(&client->dev, + pm_runtime_enable(dev); + pm_runtime_set_autosuspend_delay(dev, BMC150_MAGN_AUTO_SUSPEND_DELAY_MS); - pm_runtime_use_autosuspend(&client->dev); + pm_runtime_use_autosuspend(dev); ret = iio_device_register(indio_dev); if (ret < 0) { - dev_err(&client->dev, "unable to register iio device\n"); + dev_err(dev, "unable to register iio device\n"); goto err_buffer_cleanup; } - dev_dbg(&indio_dev->dev, "Registered device %s\n", name); + dev_dbg(dev, "Registered device %s\n", name); return 0; err_buffer_cleanup: iio_triggered_buffer_cleanup(indio_dev); err_free_irq: - if (client->irq > 0) - free_irq(client->irq, data->dready_trig); + if (irq > 0) + free_irq(irq, data->dready_trig); err_trigger_unregister: if (data->dready_trig) iio_trigger_unregister(data->dready_trig); @@ -957,22 +951,23 @@ err_poweroff: bmc150_magn_set_power_mode(data, BMC150_MAGN_POWER_MODE_SUSPEND, true); return ret; } +EXPORT_SYMBOL(bmc150_magn_probe); -static int bmc150_magn_remove(struct i2c_client *client) +int bmc150_magn_remove(struct device *dev) { - struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct bmc150_magn_data *data = iio_priv(indio_dev); iio_device_unregister(indio_dev); - pm_runtime_disable(&client->dev); - pm_runtime_set_suspended(&client->dev); - pm_runtime_put_noidle(&client->dev); + pm_runtime_disable(dev); + pm_runtime_set_suspended(dev); + pm_runtime_put_noidle(dev); iio_triggered_buffer_cleanup(indio_dev); - if (client->irq > 0) - free_irq(data->client->irq, data->dready_trig); + if (data->irq > 0) + free_irq(data->irq, data->dready_trig); if (data->dready_trig) iio_trigger_unregister(data->dready_trig); @@ -983,11 +978,12 @@ static int bmc150_magn_remove(struct i2c_client *client) return 0; } +EXPORT_SYMBOL(bmc150_magn_remove); #ifdef CONFIG_PM static int bmc150_magn_runtime_suspend(struct device *dev) { - struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct bmc150_magn_data *data = iio_priv(indio_dev); int ret; @@ -996,7 +992,7 @@ static int bmc150_magn_runtime_suspend(struct device *dev) true); mutex_unlock(&data->mutex); if (ret < 0) { - dev_err(&data->client->dev, "powering off device failed\n"); + dev_err(dev, "powering off device failed\n"); return ret; } return 0; @@ -1007,7 +1003,7 @@ static int bmc150_magn_runtime_suspend(struct device *dev) */ static int bmc150_magn_runtime_resume(struct device *dev) { - struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct bmc150_magn_data *data = iio_priv(indio_dev); return bmc150_magn_set_power_mode(data, BMC150_MAGN_POWER_MODE_NORMAL, @@ -1018,7 +1014,7 @@ static int bmc150_magn_runtime_resume(struct device *dev) #ifdef CONFIG_PM_SLEEP static int bmc150_magn_suspend(struct device *dev) { - struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct bmc150_magn_data *data = iio_priv(indio_dev); int ret; @@ -1032,7 +1028,7 @@ static int bmc150_magn_suspend(struct device *dev) static int bmc150_magn_resume(struct device *dev) { - struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct bmc150_magn_data *data = iio_priv(indio_dev); int ret; @@ -1045,38 +1041,13 @@ static int bmc150_magn_resume(struct device *dev) } #endif -static const struct dev_pm_ops bmc150_magn_pm_ops = { +const struct dev_pm_ops bmc150_magn_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(bmc150_magn_suspend, bmc150_magn_resume) SET_RUNTIME_PM_OPS(bmc150_magn_runtime_suspend, bmc150_magn_runtime_resume, NULL) }; - -static const struct acpi_device_id bmc150_magn_acpi_match[] = { - {"BMC150B", 0}, - {"BMC156B", 0}, - {}, -}; -MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match); - -static const struct i2c_device_id bmc150_magn_id[] = { - {"bmc150_magn", 0}, - {"bmc156_magn", 0}, - {}, -}; -MODULE_DEVICE_TABLE(i2c, bmc150_magn_id); - -static struct i2c_driver bmc150_magn_driver = { - .driver = { - .name = BMC150_MAGN_DRV_NAME, - .acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match), - .pm = &bmc150_magn_pm_ops, - }, - .probe = bmc150_magn_probe, - .remove = bmc150_magn_remove, - .id_table = bmc150_magn_id, -}; -module_i2c_driver(bmc150_magn_driver); +EXPORT_SYMBOL(bmc150_magn_pm_ops); MODULE_AUTHOR("Irina Tirdea "); MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("BMC150 magnetometer driver"); +MODULE_DESCRIPTION("BMC150 magnetometer core driver"); diff --git a/drivers/iio/magnetometer/bmc150_magn.h b/drivers/iio/magnetometer/bmc150_magn.h new file mode 100644 index 0000000..9a8e268 --- /dev/null +++ b/drivers/iio/magnetometer/bmc150_magn.h @@ -0,0 +1,11 @@ +#ifndef _BMC150_MAGN_H_ +#define _BMC150_MAGN_H_ + +extern const struct regmap_config bmc150_magn_regmap_config; +extern const struct dev_pm_ops bmc150_magn_pm_ops; + +int bmc150_magn_probe(struct device *dev, struct regmap *regmap, int irq, + const char *name); +int bmc150_magn_remove(struct device *dev); + +#endif /* _BMC150_MAGN_H_ */ diff --git a/drivers/iio/magnetometer/bmc150_magn_i2c.c b/drivers/iio/magnetometer/bmc150_magn_i2c.c new file mode 100644 index 0000000..eddc7f0 --- /dev/null +++ b/drivers/iio/magnetometer/bmc150_magn_i2c.c @@ -0,0 +1,77 @@ +/* + * 3-axis magnetometer driver supporting following I2C Bosch-Sensortec chips: + * - BMC150 + * - BMC156 + * + * Copyright (c) 2016, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ +#include +#include +#include +#include +#include +#include + +#include "bmc150_magn.h" + +static int bmc150_magn_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct regmap *regmap; + const char *name = NULL; + + regmap = devm_regmap_init_i2c(client, &bmc150_magn_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&client->dev, "Failed to initialize i2c regmap\n"); + return PTR_ERR(regmap); + } + + if (id) + name = id->name; + + return bmc150_magn_probe(&client->dev, regmap, client->irq, name); +} + +static int bmc150_magn_i2c_remove(struct i2c_client *client) +{ + return bmc150_magn_remove(&client->dev); +} + +static const struct acpi_device_id bmc150_magn_acpi_match[] = { + {"BMC150B", 0}, + {"BMC156B", 0}, + {}, +}; +MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match); + +static const struct i2c_device_id bmc150_magn_i2c_id[] = { + {"bmc150_magn", 0}, + {"bmc156_magn", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, bmc150_magn_i2c_id); + +static struct i2c_driver bmc150_magn_driver = { + .driver = { + .name = "bmc150_magn_i2c", + .acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match), + .pm = &bmc150_magn_pm_ops, + }, + .probe = bmc150_magn_i2c_probe, + .remove = bmc150_magn_i2c_remove, + .id_table = bmc150_magn_i2c_id, +}; +module_i2c_driver(bmc150_magn_driver); + +MODULE_AUTHOR("Daniel Baluta Date: Fri, 15 Apr 2016 17:13:10 +0300 Subject: iio: magn: bmc150: Introduce SPI support Signed-off-by: Daniel Baluta Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig index 4972f9d..84e6559 100644 --- a/drivers/iio/magnetometer/Kconfig +++ b/drivers/iio/magnetometer/Kconfig @@ -47,6 +47,22 @@ config BMC150_MAGN_I2C To compile this driver as a module, choose M here: the module will be called bmc150_magn_i2c. +config BMC150_MAGN_SPI + tristate "Bosch BMC150 SPI Magnetometer Driver" + depends on SPI + select BMC150_MAGN + select REGMAP_SPI + help + Say yes here to build support for the BMC150 magnetometer with + SPI interface. + + This is a combo module with both accelerometer and magnetometer. + This driver is only implementing magnetometer part, which has + its own address and register map. + + To compile this driver as a module, choose M here: the module will be + called bmc150_magn_spi. + config MAG3110 tristate "Freescale MAG3110 3-Axis Magnetometer" depends on I2C diff --git a/drivers/iio/magnetometer/Makefile b/drivers/iio/magnetometer/Makefile index 5647773..92a745c 100644 --- a/drivers/iio/magnetometer/Makefile +++ b/drivers/iio/magnetometer/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_AK8975) += ak8975.o obj-$(CONFIG_BMC150_MAGN) += bmc150_magn.o obj-$(CONFIG_BMC150_MAGN_I2C) += bmc150_magn_i2c.o +obj-$(CONFIG_BMC150_MAGN_SPI) += bmc150_magn_spi.o obj-$(CONFIG_MAG3110) += mag3110.o obj-$(CONFIG_HID_SENSOR_MAGNETOMETER_3D) += hid-sensor-magn-3d.o diff --git a/drivers/iio/magnetometer/bmc150_magn_spi.c b/drivers/iio/magnetometer/bmc150_magn_spi.c new file mode 100644 index 0000000..c4c738a --- /dev/null +++ b/drivers/iio/magnetometer/bmc150_magn_spi.c @@ -0,0 +1,68 @@ +/* + * 3-axis magnetometer driver support following SPI Bosch-Sensortec chips: + * - BMC150 + * - BMC156 + * + * Copyright (c) 2016, Intel Corporation. + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + */ +#include +#include +#include +#include +#include + +#include "bmc150_magn.h" + +static int bmc150_magn_spi_probe(struct spi_device *spi) +{ + struct regmap *regmap; + const struct spi_device_id *id = spi_get_device_id(spi); + + regmap = devm_regmap_init_spi(spi, &bmc150_magn_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&spi->dev, "Failed to register spi regmap %d\n", + (int)PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + return bmc150_magn_probe(&spi->dev, regmap, spi->irq, id->name); +} + +static int bmc150_magn_spi_remove(struct spi_device *spi) +{ + bmc150_magn_remove(&spi->dev); + + return 0; +} + +static const struct spi_device_id bmc150_magn_spi_id[] = { + {"bmc150_magn", 0}, + {"bmc156_magn", 0}, + {} +}; +MODULE_DEVICE_TABLE(spi, bmc150_magn_spi_id); + +static const struct acpi_device_id bmc150_magn_acpi_match[] = { + {"BMC150B", 0}, + {"BMC156B", 0}, + {}, +}; +MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match); + +static struct spi_driver bmc150_magn_spi_driver = { + .probe = bmc150_magn_spi_probe, + .remove = bmc150_magn_spi_remove, + .id_table = bmc150_magn_spi_id, + .driver = { + .acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match), + .name = "bmc150_magn_spi", + }, +}; +module_spi_driver(bmc150_magn_spi_driver); + +MODULE_AUTHOR("Daniel Baluta Date: Thu, 14 Apr 2016 15:48:26 +0000 Subject: iio: mxs-lradc: move TS config into suitable function This patch moves the touchscreen type configuration into a more suitable function. Btw this simplifies PM ops later. Signed-off-by: Stefan Wahren Reviewed-by: Marek Vasut Tested-by: Marek Vasut Acked-by: Dmitry Torokhov Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/mxs-lradc.c b/drivers/iio/adc/mxs-lradc.c index e4c4c5c..f8a6c8e 100644 --- a/drivers/iio/adc/mxs-lradc.c +++ b/drivers/iio/adc/mxs-lradc.c @@ -686,6 +686,17 @@ static void mxs_lradc_prepare_pressure(struct mxs_lradc *lradc) static void mxs_lradc_enable_touch_detection(struct mxs_lradc *lradc) { + /* Configure the touchscreen type */ + if (lradc->soc == IMX28_LRADC) { + mxs_lradc_reg_clear(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, + LRADC_CTRL0); + + if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE) + mxs_lradc_reg_set(lradc, + LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, + LRADC_CTRL0); + } + mxs_lradc_setup_touch_detection(lradc); lradc->cur_plate = LRADC_TOUCH; @@ -1496,17 +1507,6 @@ static int mxs_lradc_hw_init(struct mxs_lradc *lradc) mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(2)); mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(3)); - /* Configure the touchscreen type */ - if (lradc->soc == IMX28_LRADC) { - mxs_lradc_reg_clear(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, - LRADC_CTRL0); - - if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE) - mxs_lradc_reg_set(lradc, - LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE, - LRADC_CTRL0); - } - /* Start internal temperature sensing. */ mxs_lradc_reg_wrt(lradc, 0, LRADC_CTRL2); -- cgit v0.10.2 From 850c25c857647e4095c4290e32eb62395f9c8117 Mon Sep 17 00:00:00 2001 From: Stefan Wahren Date: Thu, 14 Apr 2016 15:48:27 +0000 Subject: iio: mxs-lradc: move STMP reset out of ADC init This patch moves the STMP reset out of ADC init function so as to remove the possiblity of an error return which will be necessary for PM ops support patches to follow. Signed-off-by: Stefan Wahren Tested-by: Marek Vasut Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/adc/mxs-lradc.c b/drivers/iio/adc/mxs-lradc.c index f8a6c8e..ad26da1 100644 --- a/drivers/iio/adc/mxs-lradc.c +++ b/drivers/iio/adc/mxs-lradc.c @@ -1487,18 +1487,13 @@ static const struct iio_chan_spec mx28_lradc_chan_spec[] = { MXS_ADC_CHAN(15, IIO_VOLTAGE, "VDD5V"), }; -static int mxs_lradc_hw_init(struct mxs_lradc *lradc) +static void mxs_lradc_hw_init(struct mxs_lradc *lradc) { /* The ADC always uses DELAY CHANNEL 0. */ const u32 adc_cfg = (1 << (LRADC_DELAY_TRIGGER_DELAYS_OFFSET + 0)) | (LRADC_DELAY_TIMER_PER << LRADC_DELAY_DELAY_OFFSET); - int ret = stmp_reset_block(lradc->base); - - if (ret) - return ret; - /* Configure DELAY CHANNEL 0 for generic ADC sampling. */ mxs_lradc_reg_wrt(lradc, adc_cfg, LRADC_DELAY(0)); @@ -1509,8 +1504,6 @@ static int mxs_lradc_hw_init(struct mxs_lradc *lradc) /* Start internal temperature sensing. */ mxs_lradc_reg_wrt(lradc, 0, LRADC_CTRL2); - - return 0; } static void mxs_lradc_hw_stop(struct mxs_lradc *lradc) @@ -1710,11 +1703,13 @@ static int mxs_lradc_probe(struct platform_device *pdev) } } - /* Configure the hardware. */ - ret = mxs_lradc_hw_init(lradc); + ret = stmp_reset_block(lradc->base); if (ret) goto err_dev; + /* Configure the hardware. */ + mxs_lradc_hw_init(lradc); + /* Register the touchscreen input device. */ if (touch_ret == 0) { ret = mxs_lradc_ts_register(lradc); -- cgit v0.10.2 From 6436db37b4a5da1ae1f381e4791e17e2236fd276 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 24 Mar 2016 14:18:04 +0100 Subject: iio: st_sensors: read each channel individually The current buffer read code tries to optimize reads from the sensor data registers by issuing a single read operation across all the indata registers. This doesn't work: when the LIS331DL accelerometer sensor is configured to open drain, active low interrupt mode, this will just clear the XDA (X-axis data available) bit in the STATUS_REG register (0x27), while YDA, ZDA and even ZYXDA remain set to 1, and the internal logic of the sensor holds the DRDY (INT1) line asserted (the value of the status register is 0xee). If we instead issue one read operation per enabled channel (X, Y, Z) things start working and we can use open drain and active low interrupts. Note that a backported patch fixing this issue will be heading via the fixes branch but changes in this file already in staging-next will make that patch 'look' rather different. The code in here is the correct one when that clash hits. Cc: Giuseppe Barba Cc: Denis Ciocca Signed-off-by: Linus Walleij Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c index 7376496..2ce0d2a 100644 --- a/drivers/iio/common/st_sensors/st_sensors_buffer.c +++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c @@ -24,67 +24,30 @@ int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf) { - u8 addr[3]; /* no ST sensor has more than 3 channels */ - int i, n = 0, len; + int i, len; + int total = 0; struct st_sensor_data *sdata = iio_priv(indio_dev); unsigned int num_data_channels = sdata->num_data_channels; - unsigned int byte_for_channel = - indio_dev->channels[0].scan_type.storagebits >> 3; for (i = 0; i < num_data_channels; i++) { + unsigned int bytes_to_read; + if (test_bit(i, indio_dev->active_scan_mask)) { - addr[n] = indio_dev->channels[i].address; - n++; - } - } - switch (n) { - case 1: - len = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev, - addr[0], byte_for_channel, buf, sdata->multiread_bit); - break; - case 2: - if ((addr[1] - addr[0]) == byte_for_channel) { + bytes_to_read = indio_dev->channels[i].scan_type.storagebits >> 3; len = sdata->tf->read_multiple_byte(&sdata->tb, - sdata->dev, addr[0], byte_for_channel * n, - buf, sdata->multiread_bit); - } else { - u8 *rx_array; - rx_array = kmalloc(byte_for_channel * num_data_channels, - GFP_KERNEL); - if (!rx_array) - return -ENOMEM; + sdata->dev, indio_dev->channels[i].address, + bytes_to_read, + buf + total, sdata->multiread_bit); - len = sdata->tf->read_multiple_byte(&sdata->tb, - sdata->dev, addr[0], - byte_for_channel * num_data_channels, - rx_array, sdata->multiread_bit); - if (len < 0) { - kfree(rx_array); - return len; - } + if (len < bytes_to_read) + return -EIO; - for (i = 0; i < n * byte_for_channel; i++) { - if (i < n) - buf[i] = rx_array[i]; - else - buf[i] = rx_array[n + i]; - } - kfree(rx_array); - len = byte_for_channel * n; + /* Advance the buffer pointer */ + total += len; } - break; - case 3: - len = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev, - addr[0], byte_for_channel * num_data_channels, - buf, sdata->multiread_bit); - break; - default: - return -EINVAL; } - if (len != byte_for_channel * n) - return -EIO; - return len; + return total; } EXPORT_SYMBOL(st_sensors_get_buffer_element); -- cgit v0.10.2 From 97865fe41322d83dac4373fe0a0de5b1a1b318c5 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 24 Mar 2016 14:18:05 +0100 Subject: iio: st_sensors: verify interrupt event to status This makes all ST sensor drivers check that they actually have new data available for the requested channel(s) before claiming an IRQ, by reading the status register (which is conveniently the same for all ST sensors) and check that the channel has new data before proceeding to read it and fill the buffer. This way sensors can share an interrupt line: it can be flaged as shared and then the sensor that did not fire will return NO_IRQ, and the sensor that fired will handle the IRQ and return IRQ_HANDLED. Cc: Giuseppe Barba Cc: Denis Ciocca Signed-off-by: Linus Walleij Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c index fee32e3..9fb6d35 100644 --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -332,6 +332,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = { .mask_int2 = ST_ACCEL_1_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_1_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_1_IHL_IRQ_MASK, + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_1_MULTIREAD_BIT, .bootime = 2, @@ -397,6 +398,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = { .mask_int2 = ST_ACCEL_2_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_2_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_2_IHL_IRQ_MASK, + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_2_MULTIREAD_BIT, .bootime = 2, @@ -474,6 +476,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = { .mask_int2 = ST_ACCEL_3_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_3_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_3_IHL_IRQ_MASK, + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, .ig1 = { .en_addr = ST_ACCEL_3_IG1_EN_ADDR, .en_mask = ST_ACCEL_3_IG1_EN_MASK, @@ -532,6 +535,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = { .drdy_irq = { .addr = ST_ACCEL_4_DRDY_IRQ_ADDR, .mask_int1 = ST_ACCEL_4_DRDY_IRQ_INT1_MASK, + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_4_MULTIREAD_BIT, .bootime = 2, /* guess */ @@ -583,6 +587,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = { .mask_int2 = ST_ACCEL_5_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_5_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_5_IHL_IRQ_MASK, + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_5_MULTIREAD_BIT, .bootime = 2, /* guess */ diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c index 2ce0d2a..c558985 100644 --- a/drivers/iio/common/st_sensors/st_sensors_buffer.c +++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c @@ -58,6 +58,24 @@ irqreturn_t st_sensors_trigger_handler(int irq, void *p) struct iio_dev *indio_dev = pf->indio_dev; struct st_sensor_data *sdata = iio_priv(indio_dev); + /* If we have a status register, check if this IRQ came from us */ + if (sdata->sensor_settings->drdy_irq.addr_stat_drdy) { + u8 status; + + len = sdata->tf->read_byte(&sdata->tb, sdata->dev, + sdata->sensor_settings->drdy_irq.addr_stat_drdy, + &status); + if (len < 0) + dev_err(sdata->dev, "could not read channel status\n"); + + /* + * If this was not caused by any channels on this sensor, + * return IRQ_NONE + */ + if (!(status & (u8)indio_dev->active_scan_mask[0])) + return IRQ_NONE; + } + len = st_sensors_get_buffer_element(indio_dev, sdata->buffer_data); if (len < 0) goto st_sensors_get_buffer_element_error; diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c index 110f95b..be9057e 100644 --- a/drivers/iio/gyro/st_gyro_core.c +++ b/drivers/iio/gyro/st_gyro_core.c @@ -190,6 +190,7 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = { * drain settings, but only for INT1 and not * for the DRDY line on INT2. */ + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_GYRO_1_MULTIREAD_BIT, .bootime = 2, @@ -258,6 +259,7 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = { * drain settings, but only for INT1 and not * for the DRDY line on INT2. */ + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_GYRO_2_MULTIREAD_BIT, .bootime = 2, @@ -322,6 +324,7 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = { * drain settings, but only for INT1 and not * for the DRDY line on INT2. */ + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_GYRO_3_MULTIREAD_BIT, .bootime = 2, diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c index 501f858..62036d2 100644 --- a/drivers/iio/magnetometer/st_magn_core.c +++ b/drivers/iio/magnetometer/st_magn_core.c @@ -484,6 +484,7 @@ static const struct st_sensor_settings st_magn_sensors_settings[] = { .mask_int1 = ST_MAGN_3_DRDY_INT_MASK, .addr_ihl = ST_MAGN_3_IHL_IRQ_ADDR, .mask_ihl = ST_MAGN_3_IHL_IRQ_MASK, + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_MAGN_3_MULTIREAD_BIT, .bootime = 2, diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index 172393a..1cd37ea 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -226,6 +226,7 @@ static const struct st_sensor_settings st_press_sensors_settings[] = { .mask_int2 = ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_PRESS_LPS331AP_IHL_IRQ_ADDR, .mask_ihl = ST_PRESS_LPS331AP_IHL_IRQ_MASK, + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT, .bootime = 2, @@ -312,6 +313,7 @@ static const struct st_sensor_settings st_press_sensors_settings[] = { .mask_int2 = ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_PRESS_LPS25H_IHL_IRQ_ADDR, .mask_ihl = ST_PRESS_LPS25H_IHL_IRQ_MASK, + .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_PRESS_LPS25H_MULTIREAD_BIT, .bootime = 2, diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h index 6670c3d..d8da075b 100644 --- a/include/linux/iio/common/st_sensors.h +++ b/include/linux/iio/common/st_sensors.h @@ -37,6 +37,7 @@ #define ST_SENSORS_DEFAULT_AXIS_ADDR 0x20 #define ST_SENSORS_DEFAULT_AXIS_MASK 0x07 #define ST_SENSORS_DEFAULT_AXIS_N_BIT 3 +#define ST_SENSORS_DEFAULT_STAT_ADDR 0x27 #define ST_SENSORS_MAX_NAME 17 #define ST_SENSORS_MAX_4WAI 7 @@ -121,6 +122,7 @@ struct st_sensor_bdu { * @mask_int2: mask to enable/disable IRQ on INT2 pin. * @addr_ihl: address to enable/disable active low on the INT lines. * @mask_ihl: mask to enable/disable active low on the INT lines. + * @addr_stat_drdy: address to read status of DRDY (data ready) interrupt * struct ig1 - represents the Interrupt Generator 1 of sensors. * @en_addr: address of the enable ig1 register. * @en_mask: mask to write the on/off value for enable. @@ -131,6 +133,7 @@ struct st_sensor_data_ready_irq { u8 mask_int2; u8 addr_ihl; u8 mask_ihl; + u8 addr_stat_drdy; struct { u8 en_addr; u8 en_mask; -- cgit v0.10.2 From 0e6f6871a1591f4bb0971809c45bc91a991f1967 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 14 Apr 2016 10:45:21 +0200 Subject: iio: st_sensors: support open drain mode Some types of ST Sensors can be connected to the same IRQ line as other peripherals using open drain. Add a device tree binding and a sensor data property to flip the right bit in the interrupt control register to enable open drain mode on the INT line. If the line is set to be open drain, also tag on IRQF_SHARED to the IRQ flags when requesting the interrupt, as the whole point of using open drain interrupt lines is to share them with more than one peripheral (wire-or). Cc: devicetree@vger.kernel.org Cc: Giuseppe Barba Cc: Denis Ciocca Acked-by: Rob Herring Signed-off-by: Linus Walleij Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt index 71b7bdf..637e283 100644 --- a/Documentation/devicetree/bindings/iio/st-sensors.txt +++ b/Documentation/devicetree/bindings/iio/st-sensors.txt @@ -16,6 +16,10 @@ Optional properties: - st,drdy-int-pin: the pin on the package that will be used to signal "data ready" (valid values: 1 or 2). This property is not configurable on all sensors. +- drive-open-drain: the interrupt/data ready line will be configured + as open drain, which is useful if several sensors share the same + interrupt line. (This binding is taken from pinctrl/pinctrl-bindings.txt) + This is a boolean property. Sensors may also have applicable pin control settings, those use the standard bindings from pinctrl/pinctrl-bindings.txt. diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c index 9fb6d35..dc73f2d 100644 --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -99,6 +99,8 @@ #define ST_ACCEL_2_DRDY_IRQ_INT2_MASK 0x10 #define ST_ACCEL_2_IHL_IRQ_ADDR 0x22 #define ST_ACCEL_2_IHL_IRQ_MASK 0x80 +#define ST_ACCEL_2_OD_IRQ_ADDR 0x22 +#define ST_ACCEL_2_OD_IRQ_MASK 0x40 #define ST_ACCEL_2_MULTIREAD_BIT true /* CUSTOM VALUES FOR SENSOR 3 */ @@ -180,6 +182,8 @@ #define ST_ACCEL_5_DRDY_IRQ_INT2_MASK 0x20 #define ST_ACCEL_5_IHL_IRQ_ADDR 0x22 #define ST_ACCEL_5_IHL_IRQ_MASK 0x80 +#define ST_ACCEL_5_OD_IRQ_ADDR 0x22 +#define ST_ACCEL_5_OD_IRQ_MASK 0x40 #define ST_ACCEL_5_IG1_EN_ADDR 0x21 #define ST_ACCEL_5_IG1_EN_MASK 0x08 #define ST_ACCEL_5_MULTIREAD_BIT false @@ -398,6 +402,8 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = { .mask_int2 = ST_ACCEL_2_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_2_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_2_IHL_IRQ_MASK, + .addr_od = ST_ACCEL_2_OD_IRQ_ADDR, + .mask_od = ST_ACCEL_2_OD_IRQ_MASK, .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_2_MULTIREAD_BIT, @@ -587,6 +593,8 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = { .mask_int2 = ST_ACCEL_5_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_ACCEL_5_IHL_IRQ_ADDR, .mask_ihl = ST_ACCEL_5_IHL_IRQ_MASK, + .addr_od = ST_ACCEL_5_OD_IRQ_ADDR, + .mask_od = ST_ACCEL_5_OD_IRQ_MASK, .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_ACCEL_5_MULTIREAD_BIT, diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c index f5a2d44..dffe006 100644 --- a/drivers/iio/common/st_sensors/st_sensors_core.c +++ b/drivers/iio/common/st_sensors/st_sensors_core.c @@ -301,6 +301,14 @@ static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev, return -EINVAL; } + if (pdata->open_drain) { + if (!sdata->sensor_settings->drdy_irq.addr_od) + dev_err(&indio_dev->dev, + "open drain requested but unsupported.\n"); + else + sdata->int_pin_open_drain = true; + } + return 0; } @@ -321,6 +329,8 @@ static struct st_sensors_platform_data *st_sensors_of_probe(struct device *dev, else pdata->drdy_int_pin = defdata ? defdata->drdy_int_pin : 0; + pdata->open_drain = of_property_read_bool(np, "drive-open-drain"); + return pdata; } #else @@ -374,6 +384,16 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev, return err; } + if (sdata->int_pin_open_drain) { + dev_info(&indio_dev->dev, + "set interrupt line to open drain mode\n"); + err = st_sensors_write_data_with_mask(indio_dev, + sdata->sensor_settings->drdy_irq.addr_od, + sdata->sensor_settings->drdy_irq.mask_od, 1); + if (err < 0) + return err; + } + err = st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS); return err; diff --git a/drivers/iio/common/st_sensors/st_sensors_trigger.c b/drivers/iio/common/st_sensors/st_sensors_trigger.c index 6a8c983..da72279 100644 --- a/drivers/iio/common/st_sensors/st_sensors_trigger.c +++ b/drivers/iio/common/st_sensors/st_sensors_trigger.c @@ -64,6 +64,19 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev, "rising edge\n", irq_trig); irq_trig = IRQF_TRIGGER_RISING; } + + /* + * If the interrupt pin is Open Drain, by definition this + * means that the interrupt line may be shared with other + * peripherals. But to do this we also need to have a status + * register and mask to figure out if this sensor was firing + * the IRQ or not, so we can tell the interrupt handle that + * it was "our" interrupt. + */ + if (sdata->int_pin_open_drain && + sdata->sensor_settings->drdy_irq.addr_stat_drdy) + irq_trig |= IRQF_SHARED; + err = request_threaded_irq(irq, iio_trigger_generic_data_rdy_poll, NULL, diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index 1cd37ea..9e9b72a 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -64,6 +64,8 @@ #define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK 0x20 #define ST_PRESS_LPS331AP_IHL_IRQ_ADDR 0x22 #define ST_PRESS_LPS331AP_IHL_IRQ_MASK 0x80 +#define ST_PRESS_LPS331AP_OD_IRQ_ADDR 0x22 +#define ST_PRESS_LPS331AP_OD_IRQ_MASK 0x40 #define ST_PRESS_LPS331AP_MULTIREAD_BIT true #define ST_PRESS_LPS331AP_TEMP_OFFSET 42500 @@ -104,6 +106,8 @@ #define ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK 0x10 #define ST_PRESS_LPS25H_IHL_IRQ_ADDR 0x22 #define ST_PRESS_LPS25H_IHL_IRQ_MASK 0x80 +#define ST_PRESS_LPS25H_OD_IRQ_ADDR 0x22 +#define ST_PRESS_LPS25H_OD_IRQ_MASK 0x40 #define ST_PRESS_LPS25H_MULTIREAD_BIT true #define ST_PRESS_LPS25H_TEMP_OFFSET 42500 #define ST_PRESS_LPS25H_OUT_XL_ADDR 0x28 @@ -226,6 +230,8 @@ static const struct st_sensor_settings st_press_sensors_settings[] = { .mask_int2 = ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_PRESS_LPS331AP_IHL_IRQ_ADDR, .mask_ihl = ST_PRESS_LPS331AP_IHL_IRQ_MASK, + .addr_od = ST_PRESS_LPS331AP_OD_IRQ_ADDR, + .mask_od = ST_PRESS_LPS331AP_OD_IRQ_MASK, .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT, @@ -313,6 +319,8 @@ static const struct st_sensor_settings st_press_sensors_settings[] = { .mask_int2 = ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK, .addr_ihl = ST_PRESS_LPS25H_IHL_IRQ_ADDR, .mask_ihl = ST_PRESS_LPS25H_IHL_IRQ_MASK, + .addr_od = ST_PRESS_LPS25H_OD_IRQ_ADDR, + .mask_od = ST_PRESS_LPS25H_OD_IRQ_MASK, .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, }, .multi_read_bit = ST_PRESS_LPS25H_MULTIREAD_BIT, diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h index d8da075b..d029ffa 100644 --- a/include/linux/iio/common/st_sensors.h +++ b/include/linux/iio/common/st_sensors.h @@ -122,6 +122,8 @@ struct st_sensor_bdu { * @mask_int2: mask to enable/disable IRQ on INT2 pin. * @addr_ihl: address to enable/disable active low on the INT lines. * @mask_ihl: mask to enable/disable active low on the INT lines. + * @addr_od: address to enable/disable Open Drain on the INT lines. + * @mask_od: mask to enable/disable Open Drain on the INT lines. * @addr_stat_drdy: address to read status of DRDY (data ready) interrupt * struct ig1 - represents the Interrupt Generator 1 of sensors. * @en_addr: address of the enable ig1 register. @@ -133,6 +135,8 @@ struct st_sensor_data_ready_irq { u8 mask_int2; u8 addr_ihl; u8 mask_ihl; + u8 addr_od; + u8 mask_od; u8 addr_stat_drdy; struct { u8 en_addr; @@ -215,6 +219,7 @@ struct st_sensor_settings { * @odr: Output data rate of the sensor [Hz]. * num_data_channels: Number of data channels used in buffer. * @drdy_int_pin: Redirect DRDY on pin 1 (1) or pin 2 (2). + * @int_pin_open_drain: Set the interrupt/DRDY to open drain. * @get_irq_data_ready: Function to get the IRQ used for data ready signal. * @tf: Transfer function structure used by I/O operations. * @tb: Transfer buffers and mutex used by I/O operations. @@ -236,6 +241,7 @@ struct st_sensor_data { unsigned int num_data_channels; u8 drdy_int_pin; + bool int_pin_open_drain; unsigned int (*get_irq_data_ready) (struct iio_dev *indio_dev); diff --git a/include/linux/platform_data/st_sensors_pdata.h b/include/linux/platform_data/st_sensors_pdata.h index 7538391..79b0e4c 100644 --- a/include/linux/platform_data/st_sensors_pdata.h +++ b/include/linux/platform_data/st_sensors_pdata.h @@ -16,9 +16,11 @@ * @drdy_int_pin: Redirect DRDY on pin 1 (1) or pin 2 (2). * Available only for accelerometer and pressure sensors. * Accelerometer DRDY on LSM330 available only on pin 1 (see datasheet). + * @open_drain: set the interrupt line to be open drain if possible. */ struct st_sensors_platform_data { u8 drdy_int_pin; + bool open_drain; }; #endif /* ST_SENSORS_PDATA_H */ -- cgit v0.10.2 From 5f991a921a08279f573fa5ecf84261a3a6fac0cc Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 14 Apr 2016 10:26:47 +0200 Subject: iio: tools: generic_buffer: auto-enable channels If no channels are enabled when we run generic_buffer on a device, add a command-line option to just enable all of them, run the sampling and disable them all again afterwards. This is extremely useful when I'm low-level testing my sensors with interrupts and triggers, sample session: root@Ux500:/ lsiio Device 000: lsm303dlh_accel Device 001: lis331dl_accel Device 002: l3g4200d Device 003: lsm303dlh_magn Device 004: lps001wp Trigger 000: lsm303dlh_accel-trigger Trigger 001: lis331dl_accel-trigger Trigger 002: l3g4200d-trigger root@Ux500:/ generic_buffer -a -c 10 -n l3g4200d iio device number being used is 2 iio trigger number being used is 2 No channels are enabled, enabling all channels Enabling: in_anglvel_x_en Enabling: in_anglvel_y_en Enabling: in_anglvel_z_en Enabling: in_timestamp_en /sys/bus/iio/devices/iio:device2 l3g4200d-trigger -3.593664 -0.713133 4.870143 946684863662292480 3.225546 0.867357 -4.945878 946684863671875000 -0.676413 0.127296 0.106641 946684863681488037 -0.661113 0.110160 0.128826 946684863690673828 -0.664173 0.113067 0.123471 946684863700683593 -0.664938 0.109395 0.124848 946684863710144042 -0.664173 0.110619 0.130203 946684863719512939 -0.666162 0.111231 0.132651 946684863729125976 -0.668610 0.111690 0.130662 946684863738739013 -0.660501 0.110466 0.131733 946684863748565673 Disabling: in_anglvel_x_en Disabling: in_anglvel_y_en Disabling: in_anglvel_z_en Disabling: in_timestamp_en Pure awesomeness. If some channels have been enabled through scripts or manual interaction, nothing happens. Cc: Peter Meerwald-Stadler Acked-by: Daniel Baluta Signed-off-by: Linus Walleij Signed-off-by: Jonathan Cameron diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c index c42b7f8..2429c78 100644 --- a/tools/iio/generic_buffer.c +++ b/tools/iio/generic_buffer.c @@ -35,6 +35,15 @@ #include "iio_utils.h" /** + * enum autochan - state for the automatic channel enabling mechanism + */ +enum autochan { + AUTOCHANNELS_DISABLED, + AUTOCHANNELS_ENABLED, + AUTOCHANNELS_ACTIVE, +}; + +/** * size_from_channelarray() - calculate the storage size of a scan * @channels: the channel info array * @num_channels: number of channels @@ -191,10 +200,51 @@ void process_scan(char *data, printf("\n"); } +static int enable_disable_all_channels(char *dev_dir_name, int enable) +{ + const struct dirent *ent; + char scanelemdir[256]; + DIR *dp; + int ret; + + snprintf(scanelemdir, sizeof(scanelemdir), + FORMAT_SCAN_ELEMENTS_DIR, dev_dir_name); + scanelemdir[sizeof(scanelemdir)-1] = '\0'; + + dp = opendir(scanelemdir); + if (!dp) { + fprintf(stderr, "Enabling/disabling channels: can't open %s\n", + scanelemdir); + return -EIO; + } + + ret = -ENOENT; + while (ent = readdir(dp), ent) { + if (iioutils_check_suffix(ent->d_name, "_en")) { + printf("%sabling: %s\n", + enable ? "En" : "Dis", + ent->d_name); + ret = write_sysfs_int(ent->d_name, scanelemdir, + enable); + if (ret < 0) + fprintf(stderr, "Failed to enable/disable %s\n", + ent->d_name); + } + } + + if (closedir(dp) == -1) { + perror("Enabling/disabling channels: " + "Failed to close directory"); + return -errno; + } + return 0; +} + void print_usage(void) { fprintf(stderr, "Usage: generic_buffer [options]...\n" "Capture, convert and output data from IIO device buffer\n" + " -a Auto-activate all available channels\n" " -c Do n conversions\n" " -e Disable wait for event (new data)\n" " -g Use trigger-less mode\n" @@ -225,12 +275,16 @@ int main(int argc, char **argv) int scan_size; int noevents = 0; int notrigger = 0; + enum autochan autochannels = AUTOCHANNELS_DISABLED; char *dummy; struct iio_channel_info *channels; - while ((c = getopt(argc, argv, "c:egl:n:t:w:")) != -1) { + while ((c = getopt(argc, argv, "ac:egl:n:t:w:")) != -1) { switch (c) { + case 'a': + autochannels = AUTOCHANNELS_ENABLED; + break; case 'c': errno = 0; num_loops = strtoul(optarg, &dummy, 10); @@ -340,12 +394,47 @@ int main(int argc, char **argv) "diag %s\n", dev_dir_name); goto error_free_triggername; } - if (!num_channels) { + if (num_channels && autochannels == AUTOCHANNELS_ENABLED) { + fprintf(stderr, "Auto-channels selected but some channels " + "are already activated in sysfs\n"); + fprintf(stderr, "Proceeding without activating any channels\n"); + } + + if (!num_channels && autochannels == AUTOCHANNELS_ENABLED) { + fprintf(stderr, + "No channels are enabled, enabling all channels\n"); + + ret = enable_disable_all_channels(dev_dir_name, 1); + if (ret) { + fprintf(stderr, "Failed to enable all channels\n"); + goto error_free_triggername; + } + + /* This flags that we need to disable the channels again */ + autochannels = AUTOCHANNELS_ACTIVE; + + ret = build_channel_array(dev_dir_name, &channels, + &num_channels); + if (ret) { + fprintf(stderr, "Problem reading scan element " + "information\n" + "diag %s\n", dev_dir_name); + goto error_disable_channels; + } + if (!num_channels) { + fprintf(stderr, "Still no channels after " + "auto-enabling, giving up\n"); + goto error_disable_channels; + } + } + + if (!num_channels && autochannels == AUTOCHANNELS_DISABLED) { fprintf(stderr, "No channels are enabled, we have nothing to scan.\n"); fprintf(stderr, "Enable channels manually in " FORMAT_SCAN_ELEMENTS_DIR - "/*_en and try again.\n", dev_dir_name); + "/*_en or pass -a to autoenable channels and " + "try again.\n", dev_dir_name); ret = -ENOENT; goto error_free_triggername; } @@ -479,7 +568,12 @@ error_free_channels: error_free_triggername: if (datardytrigger) free(trigger_name); - +error_disable_channels: + if (autochannels == AUTOCHANNELS_ACTIVE) { + ret = enable_disable_all_channels(dev_dir_name, 0); + if (ret) + fprintf(stderr, "Failed to disable all channels\n"); + } error_free_dev_dir_name: free(dev_dir_name); diff --git a/tools/iio/iio_utils.h b/tools/iio/iio_utils.h index e3503bf..780f201 100644 --- a/tools/iio/iio_utils.h +++ b/tools/iio/iio_utils.h @@ -52,6 +52,13 @@ struct iio_channel_info { unsigned location; }; +static inline int iioutils_check_suffix(const char *str, const char *suffix) +{ + return strlen(str) >= strlen(suffix) && + strncmp(str+strlen(str)-strlen(suffix), + suffix, strlen(suffix)) == 0; +} + int iioutils_break_up_name(const char *full_name, char **generic_name); int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used, unsigned *shift, uint64_t *mask, unsigned *be, -- cgit v0.10.2 From 8bf872d8d261feefcdf67027522e3f717cad2bfe Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 6 Apr 2016 16:01:06 +0530 Subject: iio: core: Add devm_ APIs for iio_channel_{get,release} Some of kernel driver uses the IIO framework to get the sensor value via ADC or IIO HW driver. The client driver get iio channel by iio_channel_get() and release it by calling iio_channel_release(). Add resource managed version (devm_*) of these APIs so that if client calls the devm_iio_channel_get() then it need not to release it explicitly, it can be done by managed device framework when driver get un-binded. This reduces the code in error path and also need of .remove callback in some cases. Signed-off-by: Laxman Dewangan Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 2fc7928..9fd8934 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -356,6 +356,54 @@ void iio_channel_release(struct iio_channel *channel) } EXPORT_SYMBOL_GPL(iio_channel_release); +static void devm_iio_channel_free(struct device *dev, void *res) +{ + struct iio_channel *channel = *(struct iio_channel **)res; + + iio_channel_release(channel); +} + +static int devm_iio_channel_match(struct device *dev, void *res, void *data) +{ + struct iio_channel **r = res; + + if (!r || !*r) { + WARN_ON(!r || !*r); + return 0; + } + + return *r == data; +} + +struct iio_channel *devm_iio_channel_get(struct device *dev, + const char *channel_name) +{ + struct iio_channel **ptr, *channel; + + ptr = devres_alloc(devm_iio_channel_free, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + channel = iio_channel_get(dev, channel_name); + if (IS_ERR(channel)) { + devres_free(ptr); + return channel; + } + + *ptr = channel; + devres_add(dev, ptr); + + return channel; +} +EXPORT_SYMBOL_GPL(devm_iio_channel_get); + +void devm_iio_channel_release(struct device *dev, struct iio_channel *channel) +{ + WARN_ON(devres_release(dev, devm_iio_channel_free, + devm_iio_channel_match, channel)); +} +EXPORT_SYMBOL_GPL(devm_iio_channel_release); + struct iio_channel *iio_channel_get_all(struct device *dev) { const char *name; diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h index fad5867..e1e033d 100644 --- a/include/linux/iio/consumer.h +++ b/include/linux/iio/consumer.h @@ -49,6 +49,33 @@ struct iio_channel *iio_channel_get(struct device *dev, void iio_channel_release(struct iio_channel *chan); /** + * devm_iio_channel_get() - Resource managed version of iio_channel_get(). + * @dev: Pointer to consumer device. Device name must match + * the name of the device as provided in the iio_map + * with which the desired provider to consumer mapping + * was registered. + * @consumer_channel: Unique name to identify the channel on the consumer + * side. This typically describes the channels use within + * the consumer. E.g. 'battery_voltage' + * + * Returns a pointer to negative errno if it is not able to get the iio channel + * otherwise returns valid pointer for iio channel. + * + * The allocated iio channel is automatically released when the device is + * unbound. + */ +struct iio_channel *devm_iio_channel_get(struct device *dev, + const char *consumer_channel); +/** + * devm_iio_channel_release() - Resource managed version of + * iio_channel_release(). + * @dev: Pointer to consumer device for which resource + * is allocared. + * @chan: The channel to be released. + */ +void devm_iio_channel_release(struct device *dev, struct iio_channel *chan); + +/** * iio_channel_get_all() - get all channels associated with a client * @dev: Pointer to consumer device. * -- cgit v0.10.2 From efc2c0133f198bc65593a67015af358919b0c48f Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 6 Apr 2016 16:01:07 +0530 Subject: iio: core: Add devm_ APIs for iio_channel_{get,release}_all Some of kernel driver uses the IIO framework to get the sensor value via ADC or IIO HW driver. The client driver get iio channel by iio_channel_get_all() and release it by calling iio_channel_release_all(). Add resource managed version (devm_*) of these APIs so that if client calls the devm_iio_channel_get_all() then it need not to release it explicitly, it can be done by managed device framework when driver get un-binded. This reduces the code in error path and also need of .remove callback in some cases. Signed-off-by: Laxman Dewangan Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 9fd8934..c4757e6 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -489,6 +489,42 @@ void iio_channel_release_all(struct iio_channel *channels) } EXPORT_SYMBOL_GPL(iio_channel_release_all); +static void devm_iio_channel_free_all(struct device *dev, void *res) +{ + struct iio_channel *channels = *(struct iio_channel **)res; + + iio_channel_release_all(channels); +} + +struct iio_channel *devm_iio_channel_get_all(struct device *dev) +{ + struct iio_channel **ptr, *channels; + + ptr = devres_alloc(devm_iio_channel_free_all, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + channels = iio_channel_get_all(dev); + if (IS_ERR(channels)) { + devres_free(ptr); + return channels; + } + + *ptr = channels; + devres_add(dev, ptr); + + return channels; +} +EXPORT_SYMBOL_GPL(devm_iio_channel_get_all); + +void devm_iio_channel_release_all(struct device *dev, + struct iio_channel *channels) +{ + WARN_ON(devres_release(dev, devm_iio_channel_free_all, + devm_iio_channel_match, channels)); +} +EXPORT_SYMBOL_GPL(devm_iio_channel_release_all); + static int iio_channel_read(struct iio_channel *chan, int *val, int *val2, enum iio_chan_info_enum info) { diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h index e1e033d..3d672f7 100644 --- a/include/linux/iio/consumer.h +++ b/include/linux/iio/consumer.h @@ -92,6 +92,32 @@ struct iio_channel *iio_channel_get_all(struct device *dev); */ void iio_channel_release_all(struct iio_channel *chan); +/** + * devm_iio_channel_get_all() - Resource managed version of + * iio_channel_get_all(). + * @dev: Pointer to consumer device. + * + * Returns a pointer to negative errno if it is not able to get the iio channel + * otherwise returns an array of iio_channel structures terminated with one with + * null iio_dev pointer. + * + * This function is used by fairly generic consumers to get all the + * channels registered as having this consumer. + * + * The allocated iio channels are automatically released when the device is + * unbounded. + */ +struct iio_channel *devm_iio_channel_get_all(struct device *dev); + +/** + * devm_iio_channel_release_all() - Resource managed version of + * iio_channel_release_all(). + * @dev: Pointer to consumer device for which resource + * is allocared. + * @chan: Array channel to be released. + */ +void devm_iio_channel_release_all(struct device *dev, struct iio_channel *chan); + struct iio_cb_buffer; /** * iio_channel_get_all_cb() - register callback for triggered capture -- cgit v0.10.2 From e21a294d1e35e890c1b5f0a29df15f75c8934a73 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 6 Apr 2016 16:01:08 +0530 Subject: iio: Add resource managed APIs devm_iio_channel_{get,release) in devres Add following APIs in the list of managed resources of IIO: devm_iio_channel_get() devm_iio_channel_get_all() devm_iio_channel_release() devm_iio_channel_release_all() Signed-off-by: Laxman Dewangan Signed-off-by: Jonathan Cameron diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt index 73b98df..bdc2dfb 100644 --- a/Documentation/driver-model/devres.txt +++ b/Documentation/driver-model/devres.txt @@ -267,6 +267,10 @@ IIO devm_iio_kfifo_free() devm_iio_trigger_alloc() devm_iio_trigger_free() + devm_iio_channel_get() + devm_iio_channel_release() + devm_iio_channel_get_all() + devm_iio_channel_release_all() IO region devm_release_mem_region() -- cgit v0.10.2 From dfd2ab8dda719b98203f5b3e940961019d373541 Mon Sep 17 00:00:00 2001 From: Peter Meerwald-Stadler Date: Sun, 20 Mar 2016 16:20:24 +0100 Subject: iio: Add Vishay VEML6070 UV A light sensor driver ultraviolet (UV) light sensor with I2C interface with a peak sensitivity at 355 nm strangely, chip uses two addresses 0x38 and 0x39 for LSB and MSB data, resp. datasheet: http://www.vishay.com/docs/84277/veml6070.pdf Signed-off-by: Peter Meerwald-Stadler Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index 5ee1d45..cbd7232 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -331,4 +331,14 @@ config VCNL4000 To compile this driver as a module, choose M here: the module will be called vcnl4000. +config VEML6070 + tristate "VEML6070 UV A light sensor" + depends on I2C + help + Say Y here if you want to build a driver for the Vishay VEML6070 UV A + light sensor. + + To compile this driver as a module, choose M here: the + module will be called veml6070. + endmenu diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile index 4aeee2b..8b246a6 100644 --- a/drivers/iio/light/Makefile +++ b/drivers/iio/light/Makefile @@ -31,3 +31,4 @@ obj-$(CONFIG_TCS3472) += tcs3472.o obj-$(CONFIG_TSL4531) += tsl4531.o obj-$(CONFIG_US5182D) += us5182d.o obj-$(CONFIG_VCNL4000) += vcnl4000.o +obj-$(CONFIG_VEML6070) += veml6070.o diff --git a/drivers/iio/light/veml6070.c b/drivers/iio/light/veml6070.c new file mode 100644 index 0000000..bc1c4cb --- /dev/null +++ b/drivers/iio/light/veml6070.c @@ -0,0 +1,218 @@ +/* + * veml6070.c - Support for Vishay VEML6070 UV A light sensor + * + * Copyright 2016 Peter Meerwald-Stadler + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * IIO driver for VEML6070 (7-bit I2C slave addresses 0x38 and 0x39) + * + * TODO: integration time, ACK signal + */ + +#include +#include +#include +#include +#include + +#include +#include + +#define VEML6070_DRV_NAME "veml6070" + +#define VEML6070_ADDR_CONFIG_DATA_MSB 0x38 /* read: MSB data, write: config */ +#define VEML6070_ADDR_DATA_LSB 0x39 /* LSB data */ + +#define VEML6070_COMMAND_ACK BIT(5) /* raise interrupt when over threshold */ +#define VEML6070_COMMAND_IT GENMASK(3, 2) /* bit mask integration time */ +#define VEML6070_COMMAND_RSRVD BIT(1) /* reserved, set to 1 */ +#define VEML6070_COMMAND_SD BIT(0) /* shutdown mode when set */ + +#define VEML6070_IT_10 0x04 /* integration time 1x */ + +struct veml6070_data { + struct i2c_client *client1; + struct i2c_client *client2; + u8 config; + struct mutex lock; +}; + +static int veml6070_read(struct veml6070_data *data) +{ + int ret; + u8 msb, lsb; + + mutex_lock(&data->lock); + + /* disable shutdown */ + ret = i2c_smbus_write_byte(data->client1, + data->config & ~VEML6070_COMMAND_SD); + if (ret < 0) + goto out; + + msleep(125 + 10); /* measurement takes up to 125 ms for IT 1x */ + + ret = i2c_smbus_read_byte(data->client2); /* read MSB, address 0x39 */ + if (ret < 0) + goto out; + msb = ret; + + ret = i2c_smbus_read_byte(data->client1); /* read LSB, address 0x38 */ + if (ret < 0) + goto out; + lsb = ret; + + /* shutdown again */ + ret = i2c_smbus_write_byte(data->client1, data->config); + if (ret < 0) + goto out; + + ret = (msb << 8) | lsb; + +out: + mutex_unlock(&data->lock); + return ret; +} + +static const struct iio_chan_spec veml6070_channels[] = { + { + .type = IIO_INTENSITY, + .modified = 1, + .channel2 = IIO_MOD_LIGHT_UV, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + }, + { + .type = IIO_UVINDEX, + .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), + } +}; + +static int veml6070_to_uv_index(unsigned val) +{ + /* + * conversion of raw UV intensity values to UV index depends on + * integration time (IT) and value of the resistor connected to + * the RSET pin (default: 270 KOhm) + */ + unsigned uvi[11] = { + 187, 373, 560, /* low */ + 746, 933, 1120, /* moderate */ + 1308, 1494, /* high */ + 1681, 1868, 2054}; /* very high */ + int i; + + for (i = 0; i < ARRAY_SIZE(uvi); i++) + if (val <= uvi[i]) + return i; + + return 11; /* extreme */ +} + +static int veml6070_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct veml6070_data *data = iio_priv(indio_dev); + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + case IIO_CHAN_INFO_PROCESSED: + ret = veml6070_read(data); + if (ret < 0) + return ret; + if (mask == IIO_CHAN_INFO_PROCESSED) + *val = veml6070_to_uv_index(ret); + else + *val = ret; + return IIO_VAL_INT; + default: + return -EINVAL; + } +} + +static const struct iio_info veml6070_info = { + .read_raw = veml6070_read_raw, + .driver_module = THIS_MODULE, +}; + +static int veml6070_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct veml6070_data *data; + struct iio_dev *indio_dev; + int ret; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + i2c_set_clientdata(client, indio_dev); + data->client1 = client; + mutex_init(&data->lock); + + indio_dev->dev.parent = &client->dev; + indio_dev->info = &veml6070_info; + indio_dev->channels = veml6070_channels; + indio_dev->num_channels = ARRAY_SIZE(veml6070_channels); + indio_dev->name = VEML6070_DRV_NAME; + indio_dev->modes = INDIO_DIRECT_MODE; + + data->client2 = i2c_new_dummy(client->adapter, VEML6070_ADDR_DATA_LSB); + if (!data->client2) { + dev_err(&client->dev, "i2c device for second chip address failed\n"); + return -ENODEV; + } + + data->config = VEML6070_IT_10 | VEML6070_COMMAND_RSRVD | + VEML6070_COMMAND_SD; + ret = i2c_smbus_write_byte(data->client1, data->config); + if (ret < 0) + goto fail; + + ret = iio_device_register(indio_dev); + if (ret < 0) + goto fail; + + return ret; + +fail: + i2c_unregister_device(data->client2); + return ret; +} + +static int veml6070_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct veml6070_data *data = iio_priv(indio_dev); + + iio_device_unregister(indio_dev); + i2c_unregister_device(data->client2); + + return 0; +} + +static const struct i2c_device_id veml6070_id[] = { + { "veml6070", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, veml6070_id); + +static struct i2c_driver veml6070_driver = { + .driver = { + .name = VEML6070_DRV_NAME, + }, + .probe = veml6070_probe, + .remove = veml6070_remove, + .id_table = veml6070_id, +}; + +module_i2c_driver(veml6070_driver); + +MODULE_AUTHOR("Peter Meerwald-Stadler "); +MODULE_DESCRIPTION("Vishay VEML6070 UV A light sensor driver"); +MODULE_LICENSE("GPL"); -- cgit v0.10.2 From 0ef4c311abdc821d10e092ae623e022dd4b6a6d4 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Sun, 10 Apr 2016 12:05:13 -0700 Subject: iio: accel: bmc150: use regmap to retrieve struct device Driver includes struct regmap and struct device in its global data. Remove the struct device and use regmap API to retrieve device info. Patch created using Coccinelle plus manual edits. Signed-off-by: Alison Schofield Reviewed-by: Irina Tirdea Reviewed-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c index e631ee9..91a52c2 100644 --- a/drivers/iio/accel/bmc150-accel-core.c +++ b/drivers/iio/accel/bmc150-accel-core.c @@ -188,7 +188,6 @@ enum bmc150_accel_trigger_id { struct bmc150_accel_data { struct regmap *regmap; - struct device *dev; int irq; struct bmc150_accel_interrupt interrupts[BMC150_ACCEL_INTERRUPTS]; atomic_t active_intr; @@ -257,6 +256,7 @@ static int bmc150_accel_set_mode(struct bmc150_accel_data *data, enum bmc150_power_modes mode, int dur_us) { + struct device *dev = regmap_get_device(data->regmap); int i; int ret; u8 lpw_bits; @@ -280,11 +280,11 @@ static int bmc150_accel_set_mode(struct bmc150_accel_data *data, lpw_bits = mode << BMC150_ACCEL_PMU_MODE_SHIFT; lpw_bits |= (dur_val << BMC150_ACCEL_PMU_BIT_SLEEP_DUR_SHIFT); - dev_dbg(data->dev, "Set Mode bits %x\n", lpw_bits); + dev_dbg(dev, "Set Mode bits %x\n", lpw_bits); ret = regmap_write(data->regmap, BMC150_ACCEL_REG_PMU_LPW, lpw_bits); if (ret < 0) { - dev_err(data->dev, "Error writing reg_pmu_lpw\n"); + dev_err(dev, "Error writing reg_pmu_lpw\n"); return ret; } @@ -317,23 +317,24 @@ static int bmc150_accel_set_bw(struct bmc150_accel_data *data, int val, static int bmc150_accel_update_slope(struct bmc150_accel_data *data) { + struct device *dev = regmap_get_device(data->regmap); int ret; ret = regmap_write(data->regmap, BMC150_ACCEL_REG_INT_6, data->slope_thres); if (ret < 0) { - dev_err(data->dev, "Error writing reg_int_6\n"); + dev_err(dev, "Error writing reg_int_6\n"); return ret; } ret = regmap_update_bits(data->regmap, BMC150_ACCEL_REG_INT_5, BMC150_ACCEL_SLOPE_DUR_MASK, data->slope_dur); if (ret < 0) { - dev_err(data->dev, "Error updating reg_int_5\n"); + dev_err(dev, "Error updating reg_int_5\n"); return ret; } - dev_dbg(data->dev, "%s: %x %x\n", __func__, data->slope_thres, + dev_dbg(dev, "%s: %x %x\n", __func__, data->slope_thres, data->slope_dur); return ret; @@ -379,20 +380,21 @@ static int bmc150_accel_get_startup_times(struct bmc150_accel_data *data) static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on) { + struct device *dev = regmap_get_device(data->regmap); int ret; if (on) { - ret = pm_runtime_get_sync(data->dev); + ret = pm_runtime_get_sync(dev); } else { - pm_runtime_mark_last_busy(data->dev); - ret = pm_runtime_put_autosuspend(data->dev); + pm_runtime_mark_last_busy(dev); + ret = pm_runtime_put_autosuspend(dev); } if (ret < 0) { - dev_err(data->dev, + dev_err(dev, "Failed: bmc150_accel_set_power_state for %d\n", on); if (on) - pm_runtime_put_noidle(data->dev); + pm_runtime_put_noidle(dev); return ret; } @@ -446,6 +448,7 @@ static void bmc150_accel_interrupts_setup(struct iio_dev *indio_dev, static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i, bool state) { + struct device *dev = regmap_get_device(data->regmap); struct bmc150_accel_interrupt *intr = &data->interrupts[i]; const struct bmc150_accel_interrupt_info *info = intr->info; int ret; @@ -475,7 +478,7 @@ static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i, ret = regmap_update_bits(data->regmap, info->map_reg, info->map_bitmask, (state ? info->map_bitmask : 0)); if (ret < 0) { - dev_err(data->dev, "Error updating reg_int_map\n"); + dev_err(dev, "Error updating reg_int_map\n"); goto out_fix_power_state; } @@ -483,7 +486,7 @@ static int bmc150_accel_set_interrupt(struct bmc150_accel_data *data, int i, ret = regmap_update_bits(data->regmap, info->en_reg, info->en_bitmask, (state ? info->en_bitmask : 0)); if (ret < 0) { - dev_err(data->dev, "Error updating reg_int_en\n"); + dev_err(dev, "Error updating reg_int_en\n"); goto out_fix_power_state; } @@ -501,6 +504,7 @@ out_fix_power_state: static int bmc150_accel_set_scale(struct bmc150_accel_data *data, int val) { + struct device *dev = regmap_get_device(data->regmap); int ret, i; for (i = 0; i < ARRAY_SIZE(data->chip_info->scale_table); ++i) { @@ -509,8 +513,7 @@ static int bmc150_accel_set_scale(struct bmc150_accel_data *data, int val) BMC150_ACCEL_REG_PMU_RANGE, data->chip_info->scale_table[i].reg_range); if (ret < 0) { - dev_err(data->dev, - "Error writing pmu_range\n"); + dev_err(dev, "Error writing pmu_range\n"); return ret; } @@ -524,6 +527,7 @@ static int bmc150_accel_set_scale(struct bmc150_accel_data *data, int val) static int bmc150_accel_get_temp(struct bmc150_accel_data *data, int *val) { + struct device *dev = regmap_get_device(data->regmap); int ret; unsigned int value; @@ -531,7 +535,7 @@ static int bmc150_accel_get_temp(struct bmc150_accel_data *data, int *val) ret = regmap_read(data->regmap, BMC150_ACCEL_REG_TEMP, &value); if (ret < 0) { - dev_err(data->dev, "Error reading reg_temp\n"); + dev_err(dev, "Error reading reg_temp\n"); mutex_unlock(&data->mutex); return ret; } @@ -546,6 +550,7 @@ static int bmc150_accel_get_axis(struct bmc150_accel_data *data, struct iio_chan_spec const *chan, int *val) { + struct device *dev = regmap_get_device(data->regmap); int ret; int axis = chan->scan_index; unsigned int raw_val; @@ -560,7 +565,7 @@ static int bmc150_accel_get_axis(struct bmc150_accel_data *data, ret = regmap_bulk_read(data->regmap, BMC150_ACCEL_AXIS_TO_REG(axis), &raw_val, 2); if (ret < 0) { - dev_err(data->dev, "Error reading axis %d\n", axis); + dev_err(dev, "Error reading axis %d\n", axis); bmc150_accel_set_power_state(data, false); mutex_unlock(&data->mutex); return ret; @@ -832,6 +837,7 @@ static int bmc150_accel_set_watermark(struct iio_dev *indio_dev, unsigned val) static int bmc150_accel_fifo_transfer(struct bmc150_accel_data *data, char *buffer, int samples) { + struct device *dev = regmap_get_device(data->regmap); int sample_length = 3 * 2; int ret; int total_length = samples * sample_length; @@ -855,7 +861,8 @@ static int bmc150_accel_fifo_transfer(struct bmc150_accel_data *data, } if (ret) - dev_err(data->dev, "Error transferring data from fifo in single steps of %zu\n", + dev_err(dev, + "Error transferring data from fifo in single steps of %zu\n", step); return ret; @@ -865,6 +872,7 @@ static int __bmc150_accel_fifo_flush(struct iio_dev *indio_dev, unsigned samples, bool irq) { struct bmc150_accel_data *data = iio_priv(indio_dev); + struct device *dev = regmap_get_device(data->regmap); int ret, i; u8 count; u16 buffer[BMC150_ACCEL_FIFO_LENGTH * 3]; @@ -874,7 +882,7 @@ static int __bmc150_accel_fifo_flush(struct iio_dev *indio_dev, ret = regmap_read(data->regmap, BMC150_ACCEL_REG_FIFO_STATUS, &val); if (ret < 0) { - dev_err(data->dev, "Error reading reg_fifo_status\n"); + dev_err(dev, "Error reading reg_fifo_status\n"); return ret; } @@ -1136,6 +1144,7 @@ static int bmc150_accel_trig_try_reen(struct iio_trigger *trig) { struct bmc150_accel_trigger *t = iio_trigger_get_drvdata(trig); struct bmc150_accel_data *data = t->data; + struct device *dev = regmap_get_device(data->regmap); int ret; /* new data interrupts don't need ack */ @@ -1149,8 +1158,7 @@ static int bmc150_accel_trig_try_reen(struct iio_trigger *trig) BMC150_ACCEL_INT_MODE_LATCH_RESET); mutex_unlock(&data->mutex); if (ret < 0) { - dev_err(data->dev, - "Error writing reg_int_rst_latch\n"); + dev_err(dev, "Error writing reg_int_rst_latch\n"); return ret; } @@ -1201,13 +1209,14 @@ static const struct iio_trigger_ops bmc150_accel_trigger_ops = { static int bmc150_accel_handle_roc_event(struct iio_dev *indio_dev) { struct bmc150_accel_data *data = iio_priv(indio_dev); + struct device *dev = regmap_get_device(data->regmap); int dir; int ret; unsigned int val; ret = regmap_read(data->regmap, BMC150_ACCEL_REG_INT_STATUS_2, &val); if (ret < 0) { - dev_err(data->dev, "Error reading reg_int_status_2\n"); + dev_err(dev, "Error reading reg_int_status_2\n"); return ret; } @@ -1250,6 +1259,7 @@ static irqreturn_t bmc150_accel_irq_thread_handler(int irq, void *private) { struct iio_dev *indio_dev = private; struct bmc150_accel_data *data = iio_priv(indio_dev); + struct device *dev = regmap_get_device(data->regmap); bool ack = false; int ret; @@ -1273,7 +1283,7 @@ static irqreturn_t bmc150_accel_irq_thread_handler(int irq, void *private) BMC150_ACCEL_INT_MODE_LATCH_INT | BMC150_ACCEL_INT_MODE_LATCH_RESET); if (ret) - dev_err(data->dev, "Error writing reg_int_rst_latch\n"); + dev_err(dev, "Error writing reg_int_rst_latch\n"); ret = IRQ_HANDLED; } else { @@ -1344,13 +1354,14 @@ static void bmc150_accel_unregister_triggers(struct bmc150_accel_data *data, static int bmc150_accel_triggers_setup(struct iio_dev *indio_dev, struct bmc150_accel_data *data) { + struct device *dev = regmap_get_device(data->regmap); int i, ret; for (i = 0; i < BMC150_ACCEL_TRIGGERS; i++) { struct bmc150_accel_trigger *t = &data->triggers[i]; - t->indio_trig = devm_iio_trigger_alloc(data->dev, - bmc150_accel_triggers[i].name, + t->indio_trig = devm_iio_trigger_alloc(dev, + bmc150_accel_triggers[i].name, indio_dev->name, indio_dev->id); if (!t->indio_trig) { @@ -1358,7 +1369,7 @@ static int bmc150_accel_triggers_setup(struct iio_dev *indio_dev, break; } - t->indio_trig->dev.parent = data->dev; + t->indio_trig->dev.parent = dev; t->indio_trig->ops = &bmc150_accel_trigger_ops; t->intr = bmc150_accel_triggers[i].intr; t->data = data; @@ -1382,12 +1393,13 @@ static int bmc150_accel_triggers_setup(struct iio_dev *indio_dev, static int bmc150_accel_fifo_set_mode(struct bmc150_accel_data *data) { + struct device *dev = regmap_get_device(data->regmap); u8 reg = BMC150_ACCEL_REG_FIFO_CONFIG1; int ret; ret = regmap_write(data->regmap, reg, data->fifo_mode); if (ret < 0) { - dev_err(data->dev, "Error writing reg_fifo_config1\n"); + dev_err(dev, "Error writing reg_fifo_config1\n"); return ret; } @@ -1397,7 +1409,7 @@ static int bmc150_accel_fifo_set_mode(struct bmc150_accel_data *data) ret = regmap_write(data->regmap, BMC150_ACCEL_REG_FIFO_CONFIG0, data->watermark); if (ret < 0) - dev_err(data->dev, "Error writing reg_fifo_config0\n"); + dev_err(dev, "Error writing reg_fifo_config0\n"); return ret; } @@ -1481,17 +1493,17 @@ static const struct iio_buffer_setup_ops bmc150_accel_buffer_ops = { static int bmc150_accel_chip_init(struct bmc150_accel_data *data) { + struct device *dev = regmap_get_device(data->regmap); int ret, i; unsigned int val; ret = regmap_read(data->regmap, BMC150_ACCEL_REG_CHIP_ID, &val); if (ret < 0) { - dev_err(data->dev, - "Error: Reading chip id\n"); + dev_err(dev, "Error: Reading chip id\n"); return ret; } - dev_dbg(data->dev, "Chip Id %x\n", val); + dev_dbg(dev, "Chip Id %x\n", val); for (i = 0; i < ARRAY_SIZE(bmc150_accel_chip_info_tbl); i++) { if (bmc150_accel_chip_info_tbl[i].chip_id == val) { data->chip_info = &bmc150_accel_chip_info_tbl[i]; @@ -1500,7 +1512,7 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data) } if (!data->chip_info) { - dev_err(data->dev, "Invalid chip %x\n", val); + dev_err(dev, "Invalid chip %x\n", val); return -ENODEV; } @@ -1517,8 +1529,7 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data) ret = regmap_write(data->regmap, BMC150_ACCEL_REG_PMU_RANGE, BMC150_ACCEL_DEF_RANGE_4G); if (ret < 0) { - dev_err(data->dev, - "Error writing reg_pmu_range\n"); + dev_err(dev, "Error writing reg_pmu_range\n"); return ret; } @@ -1536,8 +1547,7 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data) BMC150_ACCEL_INT_MODE_LATCH_INT | BMC150_ACCEL_INT_MODE_LATCH_RESET); if (ret < 0) { - dev_err(data->dev, - "Error writing reg_int_rst_latch\n"); + dev_err(dev, "Error writing reg_int_rst_latch\n"); return ret; } @@ -1557,7 +1567,6 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq, data = iio_priv(indio_dev); dev_set_drvdata(dev, indio_dev); - data->dev = dev; data->irq = irq; data->regmap = regmap; @@ -1581,13 +1590,13 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq, bmc150_accel_trigger_handler, &bmc150_accel_buffer_ops); if (ret < 0) { - dev_err(data->dev, "Failed: iio triggered buffer setup\n"); + dev_err(dev, "Failed: iio triggered buffer setup\n"); return ret; } if (data->irq > 0) { ret = devm_request_threaded_irq( - data->dev, data->irq, + dev, data->irq, bmc150_accel_irq_handler, bmc150_accel_irq_thread_handler, IRQF_TRIGGER_RISING, @@ -1605,7 +1614,7 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq, ret = regmap_write(data->regmap, BMC150_ACCEL_REG_INT_RST_LATCH, BMC150_ACCEL_INT_MODE_LATCH_RESET); if (ret < 0) { - dev_err(data->dev, "Error writing reg_int_rst_latch\n"); + dev_err(dev, "Error writing reg_int_rst_latch\n"); goto err_buffer_cleanup; } @@ -1654,9 +1663,9 @@ int bmc150_accel_core_remove(struct device *dev) iio_device_unregister(indio_dev); - pm_runtime_disable(data->dev); - pm_runtime_set_suspended(data->dev); - pm_runtime_put_noidle(data->dev); + pm_runtime_disable(dev); + pm_runtime_set_suspended(dev); + pm_runtime_put_noidle(dev); bmc150_accel_unregister_triggers(data, BMC150_ACCEL_TRIGGERS - 1); @@ -1705,7 +1714,7 @@ static int bmc150_accel_runtime_suspend(struct device *dev) struct bmc150_accel_data *data = iio_priv(indio_dev); int ret; - dev_dbg(data->dev, __func__); + dev_dbg(dev, __func__); ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_SUSPEND, 0); if (ret < 0) return -EAGAIN; @@ -1720,7 +1729,7 @@ static int bmc150_accel_runtime_resume(struct device *dev) int ret; int sleep_val; - dev_dbg(data->dev, __func__); + dev_dbg(dev, __func__); ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0); if (ret < 0) -- cgit v0.10.2 From dc2c57153ec5119eae7770042197eff627184d74 Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Sun, 10 Apr 2016 12:08:14 -0700 Subject: iio: gyro: bmg160: use regmap to retrieve struct device Driver includes struct regmap and struct device in its global data. Remove the struct device and use regmap API to retrieve device info. Patch created using Coccinelle plus manual edits. Signed-off-by: Alison Schofield Reviewed-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c index 2493bb1..b2b1071 100644 --- a/drivers/iio/gyro/bmg160_core.c +++ b/drivers/iio/gyro/bmg160_core.c @@ -95,7 +95,6 @@ #define BMG160_AUTO_SUSPEND_DELAY_MS 2000 struct bmg160_data { - struct device *dev; struct regmap *regmap; struct iio_trigger *dready_trig; struct iio_trigger *motion_trig; @@ -137,11 +136,12 @@ static const struct { static int bmg160_set_mode(struct bmg160_data *data, u8 mode) { + struct device *dev = regmap_get_device(data->regmap); int ret; ret = regmap_write(data->regmap, BMG160_REG_PMU_LPW, mode); if (ret < 0) { - dev_err(data->dev, "Error writing reg_pmu_lpw\n"); + dev_err(dev, "Error writing reg_pmu_lpw\n"); return ret; } @@ -162,6 +162,7 @@ static int bmg160_convert_freq_to_bit(int val) static int bmg160_set_bw(struct bmg160_data *data, int val) { + struct device *dev = regmap_get_device(data->regmap); int ret; int bw_bits; @@ -171,7 +172,7 @@ static int bmg160_set_bw(struct bmg160_data *data, int val) ret = regmap_write(data->regmap, BMG160_REG_PMU_BW, bw_bits); if (ret < 0) { - dev_err(data->dev, "Error writing reg_pmu_bw\n"); + dev_err(dev, "Error writing reg_pmu_bw\n"); return ret; } @@ -182,18 +183,19 @@ static int bmg160_set_bw(struct bmg160_data *data, int val) static int bmg160_chip_init(struct bmg160_data *data) { + struct device *dev = regmap_get_device(data->regmap); int ret; unsigned int val; ret = regmap_read(data->regmap, BMG160_REG_CHIP_ID, &val); if (ret < 0) { - dev_err(data->dev, "Error reading reg_chip_id\n"); + dev_err(dev, "Error reading reg_chip_id\n"); return ret; } - dev_dbg(data->dev, "Chip Id %x\n", val); + dev_dbg(dev, "Chip Id %x\n", val); if (val != BMG160_CHIP_ID_VAL) { - dev_err(data->dev, "invalid chip %x\n", val); + dev_err(dev, "invalid chip %x\n", val); return -ENODEV; } @@ -212,14 +214,14 @@ static int bmg160_chip_init(struct bmg160_data *data) /* Set Default Range */ ret = regmap_write(data->regmap, BMG160_REG_RANGE, BMG160_RANGE_500DPS); if (ret < 0) { - dev_err(data->dev, "Error writing reg_range\n"); + dev_err(dev, "Error writing reg_range\n"); return ret; } data->dps_range = BMG160_RANGE_500DPS; ret = regmap_read(data->regmap, BMG160_REG_SLOPE_THRES, &val); if (ret < 0) { - dev_err(data->dev, "Error reading reg_slope_thres\n"); + dev_err(dev, "Error reading reg_slope_thres\n"); return ret; } data->slope_thres = val; @@ -228,7 +230,7 @@ static int bmg160_chip_init(struct bmg160_data *data) ret = regmap_update_bits(data->regmap, BMG160_REG_INT_EN_1, BMG160_INT1_BIT_OD, 0); if (ret < 0) { - dev_err(data->dev, "Error updating bits in reg_int_en_1\n"); + dev_err(dev, "Error updating bits in reg_int_en_1\n"); return ret; } @@ -236,7 +238,7 @@ static int bmg160_chip_init(struct bmg160_data *data) BMG160_INT_MODE_LATCH_INT | BMG160_INT_MODE_LATCH_RESET); if (ret < 0) { - dev_err(data->dev, + dev_err(dev, "Error writing reg_motion_intr\n"); return ret; } @@ -247,20 +249,21 @@ static int bmg160_chip_init(struct bmg160_data *data) static int bmg160_set_power_state(struct bmg160_data *data, bool on) { #ifdef CONFIG_PM + struct device *dev = regmap_get_device(data->regmap); int ret; if (on) - ret = pm_runtime_get_sync(data->dev); + ret = pm_runtime_get_sync(dev); else { - pm_runtime_mark_last_busy(data->dev); - ret = pm_runtime_put_autosuspend(data->dev); + pm_runtime_mark_last_busy(dev); + ret = pm_runtime_put_autosuspend(dev); } if (ret < 0) { - dev_err(data->dev, - "Failed: bmg160_set_power_state for %d\n", on); + dev_err(dev, "Failed: bmg160_set_power_state for %d\n", on); + if (on) - pm_runtime_put_noidle(data->dev); + pm_runtime_put_noidle(dev); return ret; } @@ -272,6 +275,7 @@ static int bmg160_set_power_state(struct bmg160_data *data, bool on) static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data, bool status) { + struct device *dev = regmap_get_device(data->regmap); int ret; /* Enable/Disable INT_MAP0 mapping */ @@ -279,7 +283,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data, BMG160_INT_MAP_0_BIT_ANY, (status ? BMG160_INT_MAP_0_BIT_ANY : 0)); if (ret < 0) { - dev_err(data->dev, "Error updating bits reg_int_map0\n"); + dev_err(dev, "Error updating bits reg_int_map0\n"); return ret; } @@ -289,8 +293,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data, ret = regmap_write(data->regmap, BMG160_REG_SLOPE_THRES, data->slope_thres); if (ret < 0) { - dev_err(data->dev, - "Error writing reg_slope_thres\n"); + dev_err(dev, "Error writing reg_slope_thres\n"); return ret; } @@ -298,8 +301,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data, BMG160_INT_MOTION_X | BMG160_INT_MOTION_Y | BMG160_INT_MOTION_Z); if (ret < 0) { - dev_err(data->dev, - "Error writing reg_motion_intr\n"); + dev_err(dev, "Error writing reg_motion_intr\n"); return ret; } @@ -314,8 +316,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data, BMG160_INT_MODE_LATCH_INT | BMG160_INT_MODE_LATCH_RESET); if (ret < 0) { - dev_err(data->dev, - "Error writing reg_rst_latch\n"); + dev_err(dev, "Error writing reg_rst_latch\n"); return ret; } } @@ -328,7 +329,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data, } if (ret < 0) { - dev_err(data->dev, "Error writing reg_int_en0\n"); + dev_err(dev, "Error writing reg_int_en0\n"); return ret; } @@ -338,6 +339,7 @@ static int bmg160_setup_any_motion_interrupt(struct bmg160_data *data, static int bmg160_setup_new_data_interrupt(struct bmg160_data *data, bool status) { + struct device *dev = regmap_get_device(data->regmap); int ret; /* Enable/Disable INT_MAP1 mapping */ @@ -345,7 +347,7 @@ static int bmg160_setup_new_data_interrupt(struct bmg160_data *data, BMG160_INT_MAP_1_BIT_NEW_DATA, (status ? BMG160_INT_MAP_1_BIT_NEW_DATA : 0)); if (ret < 0) { - dev_err(data->dev, "Error updating bits in reg_int_map1\n"); + dev_err(dev, "Error updating bits in reg_int_map1\n"); return ret; } @@ -354,9 +356,8 @@ static int bmg160_setup_new_data_interrupt(struct bmg160_data *data, BMG160_INT_MODE_NON_LATCH_INT | BMG160_INT_MODE_LATCH_RESET); if (ret < 0) { - dev_err(data->dev, - "Error writing reg_rst_latch\n"); - return ret; + dev_err(dev, "Error writing reg_rst_latch\n"); + return ret; } ret = regmap_write(data->regmap, BMG160_REG_INT_EN_0, @@ -368,16 +369,15 @@ static int bmg160_setup_new_data_interrupt(struct bmg160_data *data, BMG160_INT_MODE_LATCH_INT | BMG160_INT_MODE_LATCH_RESET); if (ret < 0) { - dev_err(data->dev, - "Error writing reg_rst_latch\n"); - return ret; + dev_err(dev, "Error writing reg_rst_latch\n"); + return ret; } ret = regmap_write(data->regmap, BMG160_REG_INT_EN_0, 0); } if (ret < 0) { - dev_err(data->dev, "Error writing reg_int_en0\n"); + dev_err(dev, "Error writing reg_int_en0\n"); return ret; } @@ -400,6 +400,7 @@ static int bmg160_get_bw(struct bmg160_data *data, int *val) static int bmg160_set_scale(struct bmg160_data *data, int val) { + struct device *dev = regmap_get_device(data->regmap); int ret, i; for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) { @@ -407,8 +408,7 @@ static int bmg160_set_scale(struct bmg160_data *data, int val) ret = regmap_write(data->regmap, BMG160_REG_RANGE, bmg160_scale_table[i].dps_range); if (ret < 0) { - dev_err(data->dev, - "Error writing reg_range\n"); + dev_err(dev, "Error writing reg_range\n"); return ret; } data->dps_range = bmg160_scale_table[i].dps_range; @@ -421,6 +421,7 @@ static int bmg160_set_scale(struct bmg160_data *data, int val) static int bmg160_get_temp(struct bmg160_data *data, int *val) { + struct device *dev = regmap_get_device(data->regmap); int ret; unsigned int raw_val; @@ -433,7 +434,7 @@ static int bmg160_get_temp(struct bmg160_data *data, int *val) ret = regmap_read(data->regmap, BMG160_REG_TEMP, &raw_val); if (ret < 0) { - dev_err(data->dev, "Error reading reg_temp\n"); + dev_err(dev, "Error reading reg_temp\n"); bmg160_set_power_state(data, false); mutex_unlock(&data->mutex); return ret; @@ -450,6 +451,7 @@ static int bmg160_get_temp(struct bmg160_data *data, int *val) static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val) { + struct device *dev = regmap_get_device(data->regmap); int ret; unsigned int raw_val; @@ -463,7 +465,7 @@ static int bmg160_get_axis(struct bmg160_data *data, int axis, int *val) ret = regmap_bulk_read(data->regmap, BMG160_AXIS_TO_REG(axis), &raw_val, 2); if (ret < 0) { - dev_err(data->dev, "Error reading axis %d\n", axis); + dev_err(dev, "Error reading axis %d\n", axis); bmg160_set_power_state(data, false); mutex_unlock(&data->mutex); return ret; @@ -793,6 +795,7 @@ static int bmg160_trig_try_reen(struct iio_trigger *trig) { struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); struct bmg160_data *data = iio_priv(indio_dev); + struct device *dev = regmap_get_device(data->regmap); int ret; /* new data interrupts don't need ack */ @@ -804,7 +807,7 @@ static int bmg160_trig_try_reen(struct iio_trigger *trig) BMG160_INT_MODE_LATCH_INT | BMG160_INT_MODE_LATCH_RESET); if (ret < 0) { - dev_err(data->dev, "Error writing reg_rst_latch\n"); + dev_err(dev, "Error writing reg_rst_latch\n"); return ret; } @@ -864,13 +867,14 @@ static irqreturn_t bmg160_event_handler(int irq, void *private) { struct iio_dev *indio_dev = private; struct bmg160_data *data = iio_priv(indio_dev); + struct device *dev = regmap_get_device(data->regmap); int ret; int dir; unsigned int val; ret = regmap_read(data->regmap, BMG160_REG_INT_STATUS_2, &val); if (ret < 0) { - dev_err(data->dev, "Error reading reg_int_status2\n"); + dev_err(dev, "Error reading reg_int_status2\n"); goto ack_intr_status; } @@ -907,8 +911,7 @@ ack_intr_status: BMG160_INT_MODE_LATCH_INT | BMG160_INT_MODE_LATCH_RESET); if (ret < 0) - dev_err(data->dev, - "Error writing reg_rst_latch\n"); + dev_err(dev, "Error writing reg_rst_latch\n"); } return IRQ_HANDLED; @@ -976,7 +979,6 @@ int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq, data = iio_priv(indio_dev); dev_set_drvdata(dev, indio_dev); - data->dev = dev; data->irq = irq; data->regmap = regmap; @@ -1139,7 +1141,7 @@ static int bmg160_runtime_suspend(struct device *dev) ret = bmg160_set_mode(data, BMG160_MODE_SUSPEND); if (ret < 0) { - dev_err(data->dev, "set mode failed\n"); + dev_err(dev, "set mode failed\n"); return -EAGAIN; } -- cgit v0.10.2 From dfc57732ad38f93ae6232a3b4e64fd077383a0f1 Mon Sep 17 00:00:00 2001 From: Gregor Boirie Date: Wed, 20 Apr 2016 19:23:43 +0200 Subject: iio:core: mounting matrix support Expose a rotation matrix to indicate userspace the chip placement with respect to the overall hardware system. This is needed to adjust coordinates sampled from a sensor chip when its position deviates from the main hardware system. Final coordinates computation is delegated to userspace since: * computation may involve floating point arithmetics ; * it allows an application to combine adjustments with arbitrary transformations. This 3 dimentional space rotation matrix is expressed as 3x3 array of strings to support floating point numbers. It may be retrieved from a "[_][_]mount_matrix" sysfs attribute file. It is declared into a device / driver specific DTS property or platform data. Signed-off-by: Gregor Boirie Signed-off-by: Jonathan Cameron diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index f155eff..ba8df69 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -1512,3 +1512,54 @@ Contact: linux-iio@vger.kernel.org Description: Raw (unscaled no offset etc.) pH reading of a substance as a negative base-10 logarithm of hydrodium ions in a litre of water. + +What: /sys/bus/iio/devices/iio:deviceX/mount_matrix +What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix +What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix +KernelVersion: 4.6 +Contact: linux-iio@vger.kernel.org +Description: + Mounting matrix for IIO sensors. This is a rotation matrix which + informs userspace about sensor chip's placement relative to the + main hardware it is mounted on. + Main hardware placement is defined according to the local + reference frame related to the physical quantity the sensor + measures. + Given that the rotation matrix is defined in a board specific + way (platform data and / or device-tree), the main hardware + reference frame definition is left to the implementor's choice + (see below for a magnetometer example). + Applications should apply this rotation matrix to samples so + that when main hardware reference frame is aligned onto local + reference frame, then sensor chip reference frame is also + perfectly aligned with it. + Matrix is a 3x3 unitary matrix and typically looks like + [0, 1, 0; 1, 0, 0; 0, 0, -1]. Identity matrix + [1, 0, 0; 0, 1, 0; 0, 0, 1] means sensor chip and main hardware + are perfectly aligned with each other. + + For example, a mounting matrix for a magnetometer sensor informs + userspace about sensor chip's ORIENTATION relative to the main + hardware. + More specifically, main hardware orientation is defined with + respect to the LOCAL EARTH GEOMAGNETIC REFERENCE FRAME where : + * Y is in the ground plane and positive towards magnetic North ; + * X is in the ground plane, perpendicular to the North axis and + positive towards the East ; + * Z is perpendicular to the ground plane and positive upwards. + + An implementor might consider that for a hand-held device, a + 'natural' orientation would be 'front facing camera at the top'. + The main hardware reference frame could then be described as : + * Y is in the plane of the screen and is positive towards the + top of the screen ; + * X is in the plane of the screen, perpendicular to Y axis, and + positive towards the right hand side of the screen ; + * Z is perpendicular to the screen plane and positive out of the + screen. + Another example for a quadrotor UAV might be : + * Y is in the plane of the propellers and positive towards the + front-view camera; + * X is in the plane of the propellers, perpendicular to Y axis, + and positive towards the starboard side of the UAV ; + * Z is perpendicular to propellers plane and positive upwards. diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 190a593..e6319a9 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -412,6 +412,88 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev, } EXPORT_SYMBOL_GPL(iio_enum_write); +static const struct iio_mount_matrix iio_mount_idmatrix = { + .rotation = { + "1", "0", "0", + "0", "1", "0", + "0", "0", "1" + } +}; + +static int iio_setup_mount_idmatrix(const struct device *dev, + struct iio_mount_matrix *matrix) +{ + *matrix = iio_mount_idmatrix; + dev_info(dev, "mounting matrix not found: using identity...\n"); + return 0; +} + +ssize_t iio_show_mount_matrix(struct iio_dev *indio_dev, uintptr_t priv, + const struct iio_chan_spec *chan, char *buf) +{ + const struct iio_mount_matrix *mtx = ((iio_get_mount_matrix_t *) + priv)(indio_dev, chan); + + if (IS_ERR(mtx)) + return PTR_ERR(mtx); + + if (!mtx) + mtx = &iio_mount_idmatrix; + + return snprintf(buf, PAGE_SIZE, "%s, %s, %s; %s, %s, %s; %s, %s, %s\n", + mtx->rotation[0], mtx->rotation[1], mtx->rotation[2], + mtx->rotation[3], mtx->rotation[4], mtx->rotation[5], + mtx->rotation[6], mtx->rotation[7], mtx->rotation[8]); +} +EXPORT_SYMBOL_GPL(iio_show_mount_matrix); + +/** + * of_iio_read_mount_matrix() - retrieve iio device mounting matrix from + * device-tree "mount-matrix" property + * @dev: device the mounting matrix property is assigned to + * @propname: device specific mounting matrix property name + * @matrix: where to store retrieved matrix + * + * If device is assigned no mounting matrix property, a default 3x3 identity + * matrix will be filled in. + * + * Return: 0 if success, or a negative error code on failure. + */ +#ifdef CONFIG_OF +int of_iio_read_mount_matrix(const struct device *dev, + const char *propname, + struct iio_mount_matrix *matrix) +{ + if (dev->of_node) { + int err = of_property_read_string_array(dev->of_node, + propname, matrix->rotation, + ARRAY_SIZE(iio_mount_idmatrix.rotation)); + + if (err == ARRAY_SIZE(iio_mount_idmatrix.rotation)) + return 0; + + if (err >= 0) + /* Invalid number of matrix entries. */ + return -EINVAL; + + if (err != -EINVAL) + /* Invalid matrix declaration format. */ + return err; + } + + /* Matrix was not declared at all: fallback to identity. */ + return iio_setup_mount_idmatrix(dev, matrix); +} +#else +int of_iio_read_mount_matrix(const struct device *dev, + const char *propname, + struct iio_mount_matrix *matrix) +{ + return iio_setup_mount_idmatrix(dev, matrix); +} +#endif +EXPORT_SYMBOL(of_iio_read_mount_matrix); + /** * iio_format_value() - Formats a IIO value into its string representation * @buf: The buffer to which the formatted value gets written diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index 0b2773a..7c29cb0 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -148,6 +148,37 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev, } /** + * struct iio_mount_matrix - iio mounting matrix + * @rotation: 3 dimensional space rotation matrix defining sensor alignment with + * main hardware + */ +struct iio_mount_matrix { + const char *rotation[9]; +}; + +ssize_t iio_show_mount_matrix(struct iio_dev *indio_dev, uintptr_t priv, + const struct iio_chan_spec *chan, char *buf); +int of_iio_read_mount_matrix(const struct device *dev, const char *propname, + struct iio_mount_matrix *matrix); + +typedef const struct iio_mount_matrix * + (iio_get_mount_matrix_t)(const struct iio_dev *indio_dev, + const struct iio_chan_spec *chan); + +/** + * IIO_MOUNT_MATRIX() - Initialize mount matrix extended channel attribute + * @_shared: Whether the attribute is shared between all channels + * @_get: Pointer to an iio_get_mount_matrix_t accessor + */ +#define IIO_MOUNT_MATRIX(_shared, _get) \ +{ \ + .name = "mount_matrix", \ + .shared = (_shared), \ + .read = iio_show_mount_matrix, \ + .private = (uintptr_t)(_get), \ +} + +/** * struct iio_event_spec - specification for a channel event * @type: Type of the event * @dir: Direction of the event -- cgit v0.10.2 From 97eacb9166f4810368e180073dcbceeff0de34df Mon Sep 17 00:00:00 2001 From: Gregor Boirie Date: Wed, 20 Apr 2016 19:23:44 +0200 Subject: iio:ak8975: add mounting matrix support Expose a rotation matrix to indicate userspace the chip orientation with respect to the overall hardware system. Matrix is retrieved from "in_mount_matrix". It is declared into ak8975 DTS entry as a "mount-matrix" property. Signed-off-by: Gregor Boirie Acked-by: Rob Herring Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt index 34a3206..e1e7dd32 100644 --- a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt +++ b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt @@ -9,6 +9,7 @@ Optional properties: - gpios : should be device tree identifier of the magnetometer DRDY pin - vdd-supply: an optional regulator that needs to be on to provide VDD + - mount-matrix: an optional 3x3 mounting rotation matrix Example: @@ -17,4 +18,13 @@ ak8975@0c { reg = <0x0c>; gpios = <&gpj0 7 0>; vdd-supply = <&ldo_3v3_gnss>; + mount-matrix = "-0.984807753012208", /* x0 */ + "0", /* y0 */ + "-0.173648177666930", /* z0 */ + "0", /* x1 */ + "-1", /* y1 */ + "0", /* z1 */ + "-0.173648177666930", /* x2 */ + "0", /* y2 */ + "0.984807753012208"; /* z2 */ }; diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index a2aac50..dbf0661 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -40,7 +40,8 @@ #include #include #include -#include + +#include /* * Register definitions, as well as various shifts and masks to get at the @@ -376,6 +377,7 @@ struct ak8975_data { wait_queue_head_t data_ready_queue; unsigned long flags; u8 cntl_cache; + struct iio_mount_matrix orientation; struct regulator *vdd; }; @@ -726,6 +728,18 @@ static int ak8975_read_raw(struct iio_dev *indio_dev, return -EINVAL; } +static const struct iio_mount_matrix * +ak8975_get_mount_matrix(const struct iio_dev *indio_dev, + const struct iio_chan_spec *chan) +{ + return &((struct ak8975_data *)iio_priv(indio_dev))->orientation; +} + +static const struct iio_chan_spec_ext_info ak8975_ext_info[] = { + IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, ak8975_get_mount_matrix), + { }, +}; + #define AK8975_CHANNEL(axis, index) \ { \ .type = IIO_MAGN, \ @@ -740,7 +754,8 @@ static int ak8975_read_raw(struct iio_dev *indio_dev, .realbits = 16, \ .storagebits = 16, \ .endianness = IIO_CPU \ - } \ + }, \ + .ext_info = ak8975_ext_info, \ } static const struct iio_chan_spec ak8975_channels[] = { @@ -837,10 +852,12 @@ static int ak8975_probe(struct i2c_client *client, int err; const char *name = NULL; enum asahi_compass_chipset chipset; + const struct ak8975_platform_data *pdata = + dev_get_platdata(&client->dev); /* Grab and set up the supplied GPIO. */ - if (client->dev.platform_data) - eoc_gpio = *(int *)(client->dev.platform_data); + if (pdata) + eoc_gpio = pdata->eoc_gpio; else if (client->dev.of_node) eoc_gpio = of_get_gpio(client->dev.of_node, 0); else @@ -874,6 +891,15 @@ static int ak8975_probe(struct i2c_client *client, data->eoc_gpio = eoc_gpio; data->eoc_irq = 0; + if (!pdata) { + err = of_iio_read_mount_matrix(&client->dev, + "mount-matrix", + &data->orientation); + if (err) + return err; + } else + data->orientation = pdata->orientation; + /* id will be NULL when enumerated via ACPI */ if (id) { chipset = (enum asahi_compass_chipset)(id->driver_data); diff --git a/include/linux/iio/magnetometer/ak8975.h b/include/linux/iio/magnetometer/ak8975.h new file mode 100644 index 0000000..c840095 --- /dev/null +++ b/include/linux/iio/magnetometer/ak8975.h @@ -0,0 +1,16 @@ +#ifndef __IIO_MAGNETOMETER_AK8975_H__ +#define __IIO_MAGNETOMETER_AK8975_H__ + +#include + +/** + * struct ak8975_platform_data - AK8975 magnetometer driver platform data + * @eoc_gpio: data ready event gpio + * @orientation: mounting matrix relative to main hardware + */ +struct ak8975_platform_data { + int eoc_gpio; + struct iio_mount_matrix orientation; +}; + +#endif -- cgit v0.10.2 From eb3798463f71afc77abd25b2f62708be06f7173b Mon Sep 17 00:00:00 2001 From: Gregor Boirie Date: Wed, 20 Apr 2016 19:23:45 +0200 Subject: iio:imu:mpu6050: enhance mounting matrix support Add a new rotation matrix sysfs attribute compliant with IIO core mounting matrix API. Matrix is retrieved from "in_anglvel_mount_matrix" and "in_accel_mount_matrix" sysfs attributes. It is declared into mpu6050 DTS entry as a "mount-matrix" property. Old interface is kept for backward userspace compatibility and may be retrieved from legacy platform_data mechanism only. Signed-off-by: Gregor Boirie Acked-by: Rob Herring Signed-off-by: Jonathan Cameron diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index ba8df69..df44998 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -1516,6 +1516,8 @@ Description: What: /sys/bus/iio/devices/iio:deviceX/mount_matrix What: /sys/bus/iio/devices/iio:deviceX/in_mount_matrix What: /sys/bus/iio/devices/iio:deviceX/out_mount_matrix +What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_mount_matrix +What: /sys/bus/iio/devices/iio:deviceX/in_accel_mount_matrix KernelVersion: 4.6 Contact: linux-iio@vger.kernel.org Description: diff --git a/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt b/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt index e4d8f1c..a9fc11e 100644 --- a/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt +++ b/Documentation/devicetree/bindings/iio/imu/inv_mpu6050.txt @@ -8,10 +8,23 @@ Required properties: - interrupt-parent : should be the phandle for the interrupt controller - interrupts : interrupt mapping for GPIO IRQ +Optional properties: + - mount-matrix: an optional 3x3 mounting rotation matrix + + Example: mpu6050@68 { compatible = "invensense,mpu6050"; reg = <0x68>; interrupt-parent = <&gpio1>; interrupts = <18 1>; + mount-matrix = "-0.984807753012208", /* x0 */ + "0", /* y0 */ + "-0.173648177666930", /* z0 */ + "0", /* x1 */ + "-1", /* y1 */ + "0", /* z1 */ + "-0.173648177666930", /* x2 */ + "0", /* y2 */ + "0.984807753012208"; /* z2 */ }; diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index d192953..482a249 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -600,6 +600,10 @@ inv_fifo_rate_show(struct device *dev, struct device_attribute *attr, /** * inv_attr_show() - calling this function will show current * parameters. + * + * Deprecated in favor of IIO mounting matrix API. + * + * See inv_get_mount_matrix() */ static ssize_t inv_attr_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -644,6 +648,18 @@ static int inv_mpu6050_validate_trigger(struct iio_dev *indio_dev, return 0; } +static const struct iio_mount_matrix * +inv_get_mount_matrix(const struct iio_dev *indio_dev, + const struct iio_chan_spec *chan) +{ + return &((struct inv_mpu6050_state *)iio_priv(indio_dev))->orientation; +} + +static const struct iio_chan_spec_ext_info inv_ext_info[] = { + IIO_MOUNT_MATRIX(IIO_SHARED_BY_TYPE, inv_get_mount_matrix), + { }, +}; + #define INV_MPU6050_CHAN(_type, _channel2, _index) \ { \ .type = _type, \ @@ -660,6 +676,7 @@ static int inv_mpu6050_validate_trigger(struct iio_dev *indio_dev, .shift = 0, \ .endianness = IIO_BE, \ }, \ + .ext_info = inv_ext_info, \ } static const struct iio_chan_spec inv_mpu_channels[] = { @@ -692,14 +709,16 @@ static IIO_CONST_ATTR(in_accel_scale_available, "0.000598 0.001196 0.002392 0.004785"); static IIO_DEV_ATTR_SAMP_FREQ(S_IRUGO | S_IWUSR, inv_fifo_rate_show, inv_mpu6050_fifo_rate_store); + +/* Deprecated: kept for userspace backward compatibility. */ static IIO_DEVICE_ATTR(in_gyro_matrix, S_IRUGO, inv_attr_show, NULL, ATTR_GYRO_MATRIX); static IIO_DEVICE_ATTR(in_accel_matrix, S_IRUGO, inv_attr_show, NULL, ATTR_ACCL_MATRIX); static struct attribute *inv_attributes[] = { - &iio_dev_attr_in_gyro_matrix.dev_attr.attr, - &iio_dev_attr_in_accel_matrix.dev_attr.attr, + &iio_dev_attr_in_gyro_matrix.dev_attr.attr, /* deprecated */ + &iio_dev_attr_in_accel_matrix.dev_attr.attr, /* deprecated */ &iio_dev_attr_sampling_frequency.dev_attr.attr, &iio_const_attr_sampling_frequency_available.dev_attr.attr, &iio_const_attr_in_accel_scale_available.dev_attr.attr, @@ -779,9 +798,20 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name, st->powerup_count = 0; st->irq = irq; st->map = regmap; + pdata = dev_get_platdata(dev); - if (pdata) + if (!pdata) { + result = of_iio_read_mount_matrix(dev, "mount-matrix", + &st->orientation); + if (result) { + dev_err(dev, "Failed to retrieve mounting matrix %d\n", + result); + return result; + } + } else { st->plat_data = *pdata; + } + /* power is turned on inside check chip type*/ result = inv_check_and_setup_chip(st); if (result) diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index e302a49..52d60cd 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h @@ -114,7 +114,8 @@ struct inv_mpu6050_hw { * @hw: Other hardware-specific information. * @chip_type: chip type. * @time_stamp_lock: spin lock to time stamp. - * @plat_data: platform data. + * @plat_data: platform data (deprecated in favor of @orientation). + * @orientation: sensor chip orientation relative to main hardware. * @timestamps: kfifo queue to store time stamp. * @map regmap pointer. * @irq interrupt number. @@ -131,6 +132,7 @@ struct inv_mpu6050_state { struct i2c_client *mux_client; unsigned int powerup_count; struct inv_mpu6050_platform_data plat_data; + struct iio_mount_matrix orientation; DECLARE_KFIFO(timestamps, long long, TIMESTAMP_FIFO_SIZE); struct regmap *map; int irq; diff --git a/include/linux/platform_data/invensense_mpu6050.h b/include/linux/platform_data/invensense_mpu6050.h index ad3aa7b..554b598 100644 --- a/include/linux/platform_data/invensense_mpu6050.h +++ b/include/linux/platform_data/invensense_mpu6050.h @@ -16,13 +16,16 @@ /** * struct inv_mpu6050_platform_data - Platform data for the mpu driver - * @orientation: Orientation matrix of the chip + * @orientation: Orientation matrix of the chip (deprecated in favor of + * mounting matrix retrieved from device-tree) * * Contains platform specific information on how to configure the MPU6050 to * work on this platform. The orientation matricies are 3x3 rotation matricies * that are applied to the data to rotate from the mounting orientation to the * platform orientation. The values must be one of 0, 1, or -1 and each row and * column should have exactly 1 non-zero value. + * + * Deprecated in favor of mounting matrix retrieved from device-tree. */ struct inv_mpu6050_platform_data { __s8 orientation[9]; -- cgit v0.10.2 From f21122593d99c7e051891da1b148c771b7d56e07 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 22 Apr 2016 13:04:14 +0300 Subject: iio: light: apds9960: silence uninitialized variable warning It causes a static checker warning if we use "buf" on the failure path so move that inside the if statement. Signed-off-by: Dan Carpenter Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c index 47fcd5a..35928fb 100644 --- a/drivers/iio/light/apds9960.c +++ b/drivers/iio/light/apds9960.c @@ -495,9 +495,10 @@ static int apds9960_read_raw(struct iio_dev *indio_dev, case IIO_INTENSITY: ret = regmap_bulk_read(data->regmap, chan->address, &buf, 2); - if (!ret) + if (!ret) { ret = IIO_VAL_INT; - *val = le16_to_cpu(buf); + *val = le16_to_cpu(buf); + } break; default: ret = -EINVAL; -- cgit v0.10.2 From 41c128cb25cee72be66397fae8ceb8dc0c2c6984 Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Tue, 19 Apr 2016 15:02:11 +0300 Subject: iio: st_gyro: Add lsm9ds0-gyro support This device has an identical interface to other supported sensors and the patch only adds IDs. Signed-off-by: Crestez Dan Leonard Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt index 637e283..5844cf7 100644 --- a/Documentation/devicetree/bindings/iio/st-sensors.txt +++ b/Documentation/devicetree/bindings/iio/st-sensors.txt @@ -51,6 +51,7 @@ Gyroscopes: - st,l3gd20-gyro - st,l3g4is-gyro - st,lsm330-gyro +- st,lsm9ds0-gyro Magnetometers: - st,lsm303agr-magn diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig index e816d29..205a844 100644 --- a/drivers/iio/gyro/Kconfig +++ b/drivers/iio/gyro/Kconfig @@ -93,7 +93,7 @@ config IIO_ST_GYRO_3AXIS select IIO_TRIGGERED_BUFFER if (IIO_BUFFER) help Say yes here to build support for STMicroelectronics gyroscopes: - L3G4200D, LSM330DL, L3GD20, LSM330DLC, L3G4IS, LSM330. + L3G4200D, LSM330DL, L3GD20, LSM330DLC, L3G4IS, LSM330, LSM9DS0. This driver can also be built as a module. If so, these modules will be created: diff --git a/drivers/iio/gyro/st_gyro.h b/drivers/iio/gyro/st_gyro.h index 5353d63..a5c5c4e 100644 --- a/drivers/iio/gyro/st_gyro.h +++ b/drivers/iio/gyro/st_gyro.h @@ -21,6 +21,7 @@ #define L3GD20_GYRO_DEV_NAME "l3gd20" #define L3G4IS_GYRO_DEV_NAME "l3g4is_ui" #define LSM330_GYRO_DEV_NAME "lsm330_gyro" +#define LSM9DS0_GYRO_DEV_NAME "lsm9ds0_gyro" /** * struct st_sensors_platform_data - gyro platform data diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c index be9057e..52a3c87 100644 --- a/drivers/iio/gyro/st_gyro_core.c +++ b/drivers/iio/gyro/st_gyro_core.c @@ -204,6 +204,7 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = { [2] = LSM330DLC_GYRO_DEV_NAME, [3] = L3G4IS_GYRO_DEV_NAME, [4] = LSM330_GYRO_DEV_NAME, + [5] = LSM9DS0_GYRO_DEV_NAME, }, .ch = (struct iio_chan_spec *)st_gyro_16bit_channels, .odr = { diff --git a/drivers/iio/gyro/st_gyro_i2c.c b/drivers/iio/gyro/st_gyro_i2c.c index 6848451..40056b8 100644 --- a/drivers/iio/gyro/st_gyro_i2c.c +++ b/drivers/iio/gyro/st_gyro_i2c.c @@ -48,6 +48,10 @@ static const struct of_device_id st_gyro_of_match[] = { .compatible = "st,lsm330-gyro", .data = LSM330_GYRO_DEV_NAME, }, + { + .compatible = "st,lsm9ds0-gyro", + .data = LSM9DS0_GYRO_DEV_NAME, + }, {}, }; MODULE_DEVICE_TABLE(of, st_gyro_of_match); @@ -93,6 +97,7 @@ static const struct i2c_device_id st_gyro_id_table[] = { { L3GD20_GYRO_DEV_NAME }, { L3G4IS_GYRO_DEV_NAME }, { LSM330_GYRO_DEV_NAME }, + { LSM9DS0_GYRO_DEV_NAME }, {}, }; MODULE_DEVICE_TABLE(i2c, st_gyro_id_table); diff --git a/drivers/iio/gyro/st_gyro_spi.c b/drivers/iio/gyro/st_gyro_spi.c index d2b7a5f..fbf2fae 100644 --- a/drivers/iio/gyro/st_gyro_spi.c +++ b/drivers/iio/gyro/st_gyro_spi.c @@ -54,6 +54,7 @@ static const struct spi_device_id st_gyro_id_table[] = { { L3GD20_GYRO_DEV_NAME }, { L3G4IS_GYRO_DEV_NAME }, { LSM330_GYRO_DEV_NAME }, + { LSM9DS0_GYRO_DEV_NAME }, {}, }; MODULE_DEVICE_TABLE(spi, st_gyro_id_table); -- cgit v0.10.2 From d8469e93a4af82110b15b28bbb003a1dbe4258d2 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 18 Apr 2016 16:05:24 +0200 Subject: iio: pressure: hp03: Add Hope RF HP03 sensor support Add support for HopeRF pressure and temperature sensor. This device uses two fixed I2C addresses, one for storing calibration coefficients and another for accessing the ADC. Signed-off-by: Marek Vasut Cc: Matt Ranostay Cc: Jonathan Cameron Signed-off-by: Jonathan Cameron diff --git a/Documentation/devicetree/bindings/iio/pressure/hp03.txt b/Documentation/devicetree/bindings/iio/pressure/hp03.txt new file mode 100644 index 0000000..54e7e70 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/pressure/hp03.txt @@ -0,0 +1,17 @@ +HopeRF HP03 digital pressure/temperature sensors + +Required properties: +- compatible: must be "hoperf,hp03" +- xclr-gpio: must be device tree identifier of the XCLR pin. + The XCLR pin is a reset of the ADC in the chip, + it must be pulled HI before the conversion and + readout of the value from the ADC registers and + pulled LO afterward. + +Example: + +hp03@0x77 { + compatible = "hoperf,hp03"; + reg = <0x77>; + xclr-gpio = <&portc 0 0x0>; +}; diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig index 8de0192..54c6165 100644 --- a/drivers/iio/pressure/Kconfig +++ b/drivers/iio/pressure/Kconfig @@ -30,6 +30,17 @@ config HID_SENSOR_PRESS To compile this driver as a module, choose M here: the module will be called hid-sensor-press. +config HP03 + tristate "Hope RF HP03 temperature and pressure sensor driver" + depends on I2C + select REGMAP_I2C + help + Say yes here to build support for Hope RF HP03 pressure and + temperature sensor. + + To compile this driver as a module, choose M here: the module + will be called hp03. + config MPL115 tristate diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile index 6e60863..17d6e7a 100644 --- a/drivers/iio/pressure/Makefile +++ b/drivers/iio/pressure/Makefile @@ -5,6 +5,7 @@ # When adding new entries keep the list in alphabetical order obj-$(CONFIG_BMP280) += bmp280.o obj-$(CONFIG_HID_SENSOR_PRESS) += hid-sensor-press.o +obj-$(CONFIG_HP03) += hp03.o obj-$(CONFIG_MPL115) += mpl115.o obj-$(CONFIG_MPL115_I2C) += mpl115_i2c.o obj-$(CONFIG_MPL115_SPI) += mpl115_spi.o diff --git a/drivers/iio/pressure/hp03.c b/drivers/iio/pressure/hp03.c new file mode 100644 index 0000000..ac76515 --- /dev/null +++ b/drivers/iio/pressure/hp03.c @@ -0,0 +1,312 @@ +/* + * Copyright (c) 2016 Marek Vasut + * + * Driver for Hope RF HP03 digital temperature and pressure sensor. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#define pr_fmt(fmt) "hp03: " fmt + +#include +#include +#include +#include +#include +#include +#include + +/* + * The HP03 sensor occupies two fixed I2C addresses: + * 0x50 ... read-only EEPROM with calibration data + * 0x77 ... read-write ADC for pressure and temperature + */ +#define HP03_EEPROM_ADDR 0x50 +#define HP03_ADC_ADDR 0x77 + +#define HP03_EEPROM_CX_OFFSET 0x10 +#define HP03_EEPROM_AB_OFFSET 0x1e +#define HP03_EEPROM_CD_OFFSET 0x20 + +#define HP03_ADC_WRITE_REG 0xff +#define HP03_ADC_READ_REG 0xfd +#define HP03_ADC_READ_PRESSURE 0xf0 /* D1 in datasheet */ +#define HP03_ADC_READ_TEMP 0xe8 /* D2 in datasheet */ + +struct hp03_priv { + struct i2c_client *client; + struct mutex lock; + struct gpio_desc *xclr_gpio; + + struct i2c_client *eeprom_client; + struct regmap *eeprom_regmap; + + s32 pressure; /* kPa */ + s32 temp; /* Deg. C */ +}; + +static const struct iio_chan_spec hp03_channels[] = { + { + .type = IIO_PRESSURE, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), + }, + { + .type = IIO_TEMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), + }, +}; + +static bool hp03_is_writeable_reg(struct device *dev, unsigned int reg) +{ + return false; +} + +static bool hp03_is_volatile_reg(struct device *dev, unsigned int reg) +{ + return false; +} + +static const struct regmap_config hp03_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = HP03_EEPROM_CD_OFFSET + 1, + .cache_type = REGCACHE_RBTREE, + + .writeable_reg = hp03_is_writeable_reg, + .volatile_reg = hp03_is_volatile_reg, +}; + +static int hp03_get_temp_pressure(struct hp03_priv *priv, const u8 reg) +{ + int ret; + + ret = i2c_smbus_write_byte_data(priv->client, HP03_ADC_WRITE_REG, reg); + if (ret < 0) + return ret; + + msleep(50); /* Wait for conversion to finish */ + + return i2c_smbus_read_word_data(priv->client, HP03_ADC_READ_REG); +} + +static int hp03_update_temp_pressure(struct hp03_priv *priv) +{ + struct device *dev = &priv->client->dev; + u8 coefs[18]; + u16 cx_val[7]; + int ab_val, d1_val, d2_val, diff_val, dut, off, sens, x; + int i, ret; + + /* Sample coefficients from EEPROM */ + ret = regmap_bulk_read(priv->eeprom_regmap, HP03_EEPROM_CX_OFFSET, + coefs, sizeof(coefs)); + if (ret < 0) { + dev_err(dev, "Failed to read EEPROM (reg=%02x)\n", + HP03_EEPROM_CX_OFFSET); + return ret; + } + + /* Sample Temperature and Pressure */ + gpiod_set_value_cansleep(priv->xclr_gpio, 1); + + ret = hp03_get_temp_pressure(priv, HP03_ADC_READ_PRESSURE); + if (ret < 0) { + dev_err(dev, "Failed to read pressure\n"); + goto err_adc; + } + d1_val = ret; + + ret = hp03_get_temp_pressure(priv, HP03_ADC_READ_TEMP); + if (ret < 0) { + dev_err(dev, "Failed to read temperature\n"); + goto err_adc; + } + d2_val = ret; + + gpiod_set_value_cansleep(priv->xclr_gpio, 0); + + /* The Cx coefficients and Temp/Pressure values are MSB first. */ + for (i = 0; i < 7; i++) + cx_val[i] = (coefs[2 * i] << 8) | (coefs[(2 * i) + 1] << 0); + d1_val = ((d1_val >> 8) & 0xff) | ((d1_val & 0xff) << 8); + d2_val = ((d2_val >> 8) & 0xff) | ((d2_val & 0xff) << 8); + + /* Coefficient voodoo from the HP03 datasheet. */ + if (d2_val >= cx_val[4]) + ab_val = coefs[14]; /* A-value */ + else + ab_val = coefs[15]; /* B-value */ + + diff_val = d2_val - cx_val[4]; + dut = (ab_val * (diff_val >> 7) * (diff_val >> 7)) >> coefs[16]; + dut = diff_val - dut; + + off = (cx_val[1] + (((cx_val[3] - 1024) * dut) >> 14)) * 4; + sens = cx_val[0] + ((cx_val[2] * dut) >> 10); + x = ((sens * (d1_val - 7168)) >> 14) - off; + + priv->pressure = ((x * 100) >> 5) + (cx_val[6] * 10); + priv->temp = 250 + ((dut * cx_val[5]) >> 16) - (dut >> coefs[17]); + + return 0; + +err_adc: + gpiod_set_value_cansleep(priv->xclr_gpio, 0); + return ret; +} + +static int hp03_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct hp03_priv *priv = iio_priv(indio_dev); + int ret; + + mutex_lock(&priv->lock); + ret = hp03_update_temp_pressure(priv); + mutex_unlock(&priv->lock); + + if (ret) + return ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + switch (chan->type) { + case IIO_PRESSURE: + *val = priv->pressure; + return IIO_VAL_INT; + case IIO_TEMP: + *val = priv->temp; + return IIO_VAL_INT; + default: + return -EINVAL; + } + break; + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_PRESSURE: + *val = 0; + *val2 = 1000; + return IIO_VAL_INT_PLUS_MICRO; + case IIO_TEMP: + *val = 10; + return IIO_VAL_INT; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + + return -EINVAL; +} + +static const struct iio_info hp03_info = { + .driver_module = THIS_MODULE, + .read_raw = &hp03_read_raw, +}; + +static int hp03_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct iio_dev *indio_dev; + struct hp03_priv *priv; + int ret; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*priv)); + if (!indio_dev) + return -ENOMEM; + + priv = iio_priv(indio_dev); + priv->client = client; + mutex_init(&priv->lock); + + indio_dev->dev.parent = dev; + indio_dev->name = id->name; + indio_dev->channels = hp03_channels; + indio_dev->num_channels = ARRAY_SIZE(hp03_channels); + indio_dev->info = &hp03_info; + indio_dev->modes = INDIO_DIRECT_MODE; + + priv->xclr_gpio = devm_gpiod_get_index(dev, "xclr", 0, GPIOD_OUT_HIGH); + if (IS_ERR(priv->xclr_gpio)) { + dev_err(dev, "Failed to claim XCLR GPIO\n"); + ret = PTR_ERR(priv->xclr_gpio); + return ret; + } + + /* + * Allocate another device for the on-sensor EEPROM, + * which has it's dedicated I2C address and contains + * the calibration constants for the sensor. + */ + priv->eeprom_client = i2c_new_dummy(client->adapter, HP03_EEPROM_ADDR); + if (!priv->eeprom_client) { + dev_err(dev, "New EEPROM I2C device failed\n"); + return -ENODEV; + } + + priv->eeprom_regmap = regmap_init_i2c(priv->eeprom_client, + &hp03_regmap_config); + if (IS_ERR(priv->eeprom_regmap)) { + dev_err(dev, "Failed to allocate EEPROM regmap\n"); + ret = PTR_ERR(priv->eeprom_regmap); + goto err_cleanup_eeprom_client; + } + + ret = iio_device_register(indio_dev); + if (ret) { + dev_err(dev, "Failed to register IIO device\n"); + goto err_cleanup_eeprom_regmap; + } + + i2c_set_clientdata(client, indio_dev); + + return 0; + +err_cleanup_eeprom_regmap: + regmap_exit(priv->eeprom_regmap); + +err_cleanup_eeprom_client: + i2c_unregister_device(priv->eeprom_client); + return ret; +} + +static int hp03_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct hp03_priv *priv = iio_priv(indio_dev); + + iio_device_unregister(indio_dev); + regmap_exit(priv->eeprom_regmap); + i2c_unregister_device(priv->eeprom_client); + + return 0; +} + +static const struct i2c_device_id hp03_id[] = { + { "hp03", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, hp03_id); + +static struct i2c_driver hp03_driver = { + .driver = { + .name = "hp03", + }, + .probe = hp03_probe, + .remove = hp03_remove, + .id_table = hp03_id, +}; +module_i2c_driver(hp03_driver); + +MODULE_AUTHOR("Marek Vasut "); +MODULE_DESCRIPTION("Driver for Hope RF HP03 pressure and temperature sensor"); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From 366a3270c1c5ce0a12d1451e2e2e6341385c331d Mon Sep 17 00:00:00 2001 From: Tiberiu Breana Date: Mon, 18 Apr 2016 17:50:43 +0300 Subject: iio: humidity: Add support for AM2315 Add basic support for the Aosong AM2315 relative humidity and ambient temperature sensor. Includes support for raw readings and ACPI detection. Datasheet: http://www.aosong.com/asp_bin/Products/en/AM2315.pdf Signed-off-by: Tiberiu Breana Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/humidity/Kconfig b/drivers/iio/humidity/Kconfig index 866dda1..738a86d 100644 --- a/drivers/iio/humidity/Kconfig +++ b/drivers/iio/humidity/Kconfig @@ -3,6 +3,16 @@ # menu "Humidity sensors" +config AM2315 + tristate "Aosong AM2315 relative humidity and temperature sensor" + depends on I2C + help + If you say yes here you get support for the Aosong AM2315 + relative humidity and ambient temperature sensor. + + This driver can also be built as a module. If so, the module will + be called am2315. + config DHT11 tristate "DHT11 (and compatible sensors) driver" depends on GPIOLIB || COMPILE_TEST diff --git a/drivers/iio/humidity/Makefile b/drivers/iio/humidity/Makefile index c9f089a..4a73442 100644 --- a/drivers/iio/humidity/Makefile +++ b/drivers/iio/humidity/Makefile @@ -2,6 +2,7 @@ # Makefile for IIO humidity sensor drivers # +obj-$(CONFIG_AM2315) += am2315.o obj-$(CONFIG_DHT11) += dht11.o obj-$(CONFIG_HDC100X) += hdc100x.o obj-$(CONFIG_HTU21) += htu21.o diff --git a/drivers/iio/humidity/am2315.c b/drivers/iio/humidity/am2315.c new file mode 100644 index 0000000..d392fc8 --- /dev/null +++ b/drivers/iio/humidity/am2315.c @@ -0,0 +1,228 @@ +/** + * Aosong AM2315 relative humidity and temperature + * + * Copyright (c) 2016, Intel Corporation. + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * 7-bit I2C address: 0x5C. + */ + +#include +#include +#include +#include +#include +#include +#include + +#define AM2315_REG_HUM_MSB 0x00 +#define AM2315_REG_HUM_LSB 0x01 +#define AM2315_REG_TEMP_MSB 0x02 +#define AM2315_REG_TEMP_LSB 0x03 + +#define AM2315_FUNCTION_READ 0x03 +#define AM2315_HUM_OFFSET 2 +#define AM2315_TEMP_OFFSET 4 + +#define AM2315_DRIVER_NAME "am2315" + +struct am2315_data { + struct i2c_client *client; + struct mutex lock; +}; + +struct am2315_sensor_data { + s16 hum_data; + s16 temp_data; +}; + +static const struct iio_chan_spec am2315_channels[] = { + { + .type = IIO_HUMIDITYRELATIVE, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) + }, + { + .type = IIO_TEMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE) + }, +}; + +/* CRC calculation algorithm, as specified in the datasheet (page 13). */ +static u16 am2315_crc(u8 *data, u8 nr_bytes) +{ + int i; + u16 crc = 0xffff; + + while (nr_bytes--) { + crc ^= *data++; + for (i = 0; i < 8; i++) { + if (crc & 0x01) { + crc >>= 1; + crc ^= 0xA001; + } else { + crc >>= 1; + } + } + } + + return crc; +} + +/* Simple function that sends a few bytes to the device to wake it up. */ +static void am2315_ping(struct i2c_client *client) +{ + i2c_smbus_read_byte_data(client, AM2315_REG_HUM_MSB); +} + +static int am2315_read_data(struct am2315_data *data, + struct am2315_sensor_data *sensor_data) +{ + int ret; + /* tx_buf format: */ + u8 tx_buf[3] = { AM2315_FUNCTION_READ, AM2315_REG_HUM_MSB, 4 }; + /* + * rx_buf format: + * + * + * + */ + u8 rx_buf[8]; + u16 crc; + + /* First wake up the device. */ + am2315_ping(data->client); + + mutex_lock(&data->lock); + ret = i2c_master_send(data->client, tx_buf, sizeof(tx_buf)); + if (ret < 0) { + dev_err(&data->client->dev, "failed to send read request\n"); + goto exit_unlock; + } + /* Wait 2-3 ms, then read back the data sent by the device. */ + usleep_range(2000, 3000); + /* Do a bulk data read, then pick out what we need. */ + ret = i2c_master_recv(data->client, rx_buf, sizeof(rx_buf)); + if (ret < 0) { + dev_err(&data->client->dev, "failed to read sensor data\n"); + goto exit_unlock; + } + mutex_unlock(&data->lock); + /* + * Do a CRC check on the data and compare it to the value + * calculated by the device. + */ + crc = am2315_crc(rx_buf, sizeof(rx_buf) - 2); + if ((crc & 0xff) != rx_buf[6] || (crc >> 8) != rx_buf[7]) { + dev_err(&data->client->dev, "failed to verify sensor data\n"); + return -EIO; + } + + sensor_data->hum_data = (rx_buf[AM2315_HUM_OFFSET] << 8) | + rx_buf[AM2315_HUM_OFFSET + 1]; + sensor_data->temp_data = (rx_buf[AM2315_TEMP_OFFSET] << 8) | + rx_buf[AM2315_TEMP_OFFSET + 1]; + + return ret; + +exit_unlock: + mutex_unlock(&data->lock); + return ret; +} + +static int am2315_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + int ret; + struct am2315_sensor_data sensor_data; + struct am2315_data *data = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = am2315_read_data(data, &sensor_data); + if (ret < 0) + return ret; + *val = (chan->type == IIO_HUMIDITYRELATIVE) ? + sensor_data.hum_data : sensor_data.temp_data; + return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + *val = 100; + return IIO_VAL_INT; + } + + return -EINVAL; +} + +static const struct iio_info am2315_info = { + .driver_module = THIS_MODULE, + .read_raw = am2315_read_raw, +}; + +static int am2315_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct iio_dev *indio_dev; + struct am2315_data *data; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!indio_dev) { + dev_err(&client->dev, "iio allocation failed!\n"); + return -ENOMEM; + } + + data = iio_priv(indio_dev); + data->client = client; + i2c_set_clientdata(client, indio_dev); + mutex_init(&data->lock); + + indio_dev->dev.parent = &client->dev; + indio_dev->info = &am2315_info; + indio_dev->name = AM2315_DRIVER_NAME; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->channels = am2315_channels; + indio_dev->num_channels = ARRAY_SIZE(am2315_channels); + + return iio_device_register(indio_dev); +} + +static int am2315_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + + iio_device_unregister(indio_dev); + + return 0; +} + +static const struct i2c_device_id am2315_i2c_id[] = { + {"am2315", 0}, + {} +}; + +static const struct acpi_device_id am2315_acpi_id[] = { + {"AOS2315", 0}, + {} +}; + +MODULE_DEVICE_TABLE(acpi, am2315_acpi_id); + +static struct i2c_driver am2315_driver = { + .driver = { + .name = "am2315", + .acpi_match_table = ACPI_PTR(am2315_acpi_id), + }, + .probe = am2315_probe, + .remove = am2315_remove, + .id_table = am2315_i2c_id, +}; + +module_i2c_driver(am2315_driver); + +MODULE_AUTHOR("Tiberiu Breana "); +MODULE_DESCRIPTION("Aosong AM2315 relative humidity and temperature"); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From 0d96d5ead3f7f1303a6a445051f29bba7c7f4e47 Mon Sep 17 00:00:00 2001 From: Tiberiu Breana Date: Mon, 18 Apr 2016 17:50:44 +0300 Subject: iio: humidity: Add triggered buffer support for AM2315 Signed-off-by: Tiberiu Breana Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/humidity/am2315.c b/drivers/iio/humidity/am2315.c index d392fc8..3be6d20 100644 --- a/drivers/iio/humidity/am2315.c +++ b/drivers/iio/humidity/am2315.c @@ -15,8 +15,11 @@ #include #include #include +#include #include #include +#include +#include #define AM2315_REG_HUM_MSB 0x00 #define AM2315_REG_HUM_LSB 0x01 @@ -26,12 +29,14 @@ #define AM2315_FUNCTION_READ 0x03 #define AM2315_HUM_OFFSET 2 #define AM2315_TEMP_OFFSET 4 +#define AM2315_ALL_CHANNEL_MASK GENMASK(1, 0) #define AM2315_DRIVER_NAME "am2315" struct am2315_data { struct i2c_client *client; struct mutex lock; + s16 buffer[8]; /* 2x16-bit channels + 2x16 padding + 4x16 timestamp */ }; struct am2315_sensor_data { @@ -43,13 +48,28 @@ static const struct iio_chan_spec am2315_channels[] = { { .type = IIO_HUMIDITYRELATIVE, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_SCALE) + BIT(IIO_CHAN_INFO_SCALE), + .scan_index = 0, + .scan_type = { + .sign = 's', + .realbits = 16, + .storagebits = 16, + .endianness = IIO_CPU, + }, }, { .type = IIO_TEMP, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_SCALE) + BIT(IIO_CHAN_INFO_SCALE), + .scan_index = 1, + .scan_type = { + .sign = 's', + .realbits = 16, + .storagebits = 16, + .endianness = IIO_CPU, + }, }, + IIO_CHAN_SOFT_TIMESTAMP(2), }; /* CRC calculation algorithm, as specified in the datasheet (page 13). */ @@ -134,6 +154,44 @@ exit_unlock: return ret; } +static irqreturn_t am2315_trigger_handler(int irq, void *p) +{ + int i; + int ret; + int bit; + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct am2315_data *data = iio_priv(indio_dev); + struct am2315_sensor_data sensor_data; + + ret = am2315_read_data(data, &sensor_data); + if (ret < 0) { + mutex_unlock(&data->lock); + goto err; + } + + mutex_lock(&data->lock); + if (*(indio_dev->active_scan_mask) == AM2315_ALL_CHANNEL_MASK) { + data->buffer[0] = sensor_data.hum_data; + data->buffer[1] = sensor_data.temp_data; + } else { + i = 0; + for_each_set_bit(bit, indio_dev->active_scan_mask, + indio_dev->masklength) { + data->buffer[i] = (bit ? sensor_data.temp_data : + sensor_data.hum_data); + i++; + } + } + mutex_unlock(&data->lock); + + iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, + pf->timestamp); +err: + iio_trigger_notify_done(indio_dev->trig); + return IRQ_HANDLED; +} + static int am2315_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) @@ -166,6 +224,7 @@ static const struct iio_info am2315_info = { static int am2315_probe(struct i2c_client *client, const struct i2c_device_id *id) { + int ret; struct iio_dev *indio_dev; struct am2315_data *data; @@ -187,7 +246,22 @@ static int am2315_probe(struct i2c_client *client, indio_dev->channels = am2315_channels; indio_dev->num_channels = ARRAY_SIZE(am2315_channels); - return iio_device_register(indio_dev); + ret = iio_triggered_buffer_setup(indio_dev, NULL, + am2315_trigger_handler, NULL); + if (ret < 0) { + dev_err(&client->dev, "iio triggered buffer setup failed\n"); + return ret; + } + + ret = iio_device_register(indio_dev); + if (ret < 0) + goto err_buffer_cleanup; + + return 0; + +err_buffer_cleanup: + iio_triggered_buffer_cleanup(indio_dev); + return ret; } static int am2315_remove(struct i2c_client *client) @@ -195,6 +269,7 @@ static int am2315_remove(struct i2c_client *client) struct iio_dev *indio_dev = i2c_get_clientdata(client); iio_device_unregister(indio_dev); + iio_triggered_buffer_cleanup(indio_dev); return 0; } -- cgit v0.10.2 From b9567e6664643eb99367fb88d14fdba863b1688a Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Mon, 18 Apr 2016 17:31:53 +0300 Subject: max44000: Initial support This just adds support for reporting illuminance with default settings. Important default registers are written on probe because the device otherwise lacks a reset function. Signed-off-by: Crestez Dan Leonard Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index cbd7232..7c566f5 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -234,6 +234,17 @@ config LTR501 This driver can also be built as a module. If so, the module will be called ltr501. +config MAX44000 + tristate "MAX44000 Ambient and Infrared Proximity Sensor" + depends on I2C + select REGMAP_I2C + help + Say Y here if you want to build support for Maxim Integrated's + MAX44000 ambient and infrared proximity sensor device. + + To compile this driver as a module, choose M here: + the module will be called max44000. + config OPT3001 tristate "Texas Instruments OPT3001 Light Sensor" depends on I2C diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile index 8b246a6..6f2a3c6 100644 --- a/drivers/iio/light/Makefile +++ b/drivers/iio/light/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_ISL29125) += isl29125.o obj-$(CONFIG_JSA1212) += jsa1212.o obj-$(CONFIG_SENSORS_LM3533) += lm3533-als.o obj-$(CONFIG_LTR501) += ltr501.o +obj-$(CONFIG_MAX44000) += max44000.o obj-$(CONFIG_OPT3001) += opt3001.o obj-$(CONFIG_PA12203001) += pa12203001.o obj-$(CONFIG_RPR0521) += rpr0521.o diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c new file mode 100644 index 0000000..5ed7934 --- /dev/null +++ b/drivers/iio/light/max44000.c @@ -0,0 +1,324 @@ +/* + * MAX44000 Ambient and Infrared Proximity Sensor + * + * Copyright (c) 2016, Intel Corporation. + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * Data sheet: https://datasheets.maximintegrated.com/en/ds/MAX44000.pdf + * + * 7-bit I2C slave address 0x4a + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define MAX44000_DRV_NAME "max44000" + +/* Registers in datasheet order */ +#define MAX44000_REG_STATUS 0x00 +#define MAX44000_REG_CFG_MAIN 0x01 +#define MAX44000_REG_CFG_RX 0x02 +#define MAX44000_REG_CFG_TX 0x03 +#define MAX44000_REG_ALS_DATA_HI 0x04 +#define MAX44000_REG_ALS_DATA_LO 0x05 +#define MAX44000_REG_PRX_DATA 0x16 +#define MAX44000_REG_ALS_UPTHR_HI 0x06 +#define MAX44000_REG_ALS_UPTHR_LO 0x07 +#define MAX44000_REG_ALS_LOTHR_HI 0x08 +#define MAX44000_REG_ALS_LOTHR_LO 0x09 +#define MAX44000_REG_PST 0x0a +#define MAX44000_REG_PRX_IND 0x0b +#define MAX44000_REG_PRX_THR 0x0c +#define MAX44000_REG_TRIM_GAIN_GREEN 0x0f +#define MAX44000_REG_TRIM_GAIN_IR 0x10 + +/* REG_CFG bits */ +#define MAX44000_CFG_ALSINTE 0x01 +#define MAX44000_CFG_PRXINTE 0x02 +#define MAX44000_CFG_MASK 0x1c +#define MAX44000_CFG_MODE_SHUTDOWN 0x00 +#define MAX44000_CFG_MODE_ALS_GIR 0x04 +#define MAX44000_CFG_MODE_ALS_G 0x08 +#define MAX44000_CFG_MODE_ALS_IR 0x0c +#define MAX44000_CFG_MODE_ALS_PRX 0x10 +#define MAX44000_CFG_MODE_PRX 0x14 +#define MAX44000_CFG_TRIM 0x20 + +/* + * Upper 4 bits are not documented but start as 1 on powerup + * Setting them to 0 causes proximity to misbehave so set them to 1 + */ +#define MAX44000_REG_CFG_RX_DEFAULT 0xf0 + +#define MAX44000_ALSDATA_OVERFLOW 0x4000 + +struct max44000_data { + struct mutex lock; + struct regmap *regmap; +}; + +/* Default scale is set to the minimum of 0.03125 or 1 / (1 << 5) lux */ +#define MAX44000_ALS_TO_LUX_DEFAULT_FRACTION_LOG2 5 + +static const struct iio_chan_spec max44000_channels[] = { + { + .type = IIO_LIGHT, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), + }, +}; + +static int max44000_read_alsval(struct max44000_data *data) +{ + u16 regval; + int ret; + + ret = regmap_bulk_read(data->regmap, MAX44000_REG_ALS_DATA_HI, + ®val, sizeof(regval)); + if (ret < 0) + return ret; + + regval = be16_to_cpu(regval); + + /* + * Overflow is explained on datasheet page 17. + * + * It's a warning that either the G or IR channel has become saturated + * and that the value in the register is likely incorrect. + * + * The recommendation is to change the scale (ALSPGA). + * The driver just returns the max representable value. + */ + if (regval & MAX44000_ALSDATA_OVERFLOW) + return 0x3FFF; + + return regval; +} + +static int max44000_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct max44000_data *data = iio_priv(indio_dev); + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + switch (chan->type) { + case IIO_LIGHT: + mutex_lock(&data->lock); + ret = max44000_read_alsval(data); + mutex_unlock(&data->lock); + if (ret < 0) + return ret; + *val = ret; + return IIO_VAL_INT; + + default: + return -EINVAL; + } + + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_LIGHT: + *val = 1; + *val2 = MAX44000_ALS_TO_LUX_DEFAULT_FRACTION_LOG2; + return IIO_VAL_FRACTIONAL_LOG2; + + default: + return -EINVAL; + } + + default: + return -EINVAL; + } +} + +static const struct iio_info max44000_info = { + .driver_module = THIS_MODULE, + .read_raw = max44000_read_raw, +}; + +static bool max44000_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case MAX44000_REG_STATUS: + case MAX44000_REG_CFG_MAIN: + case MAX44000_REG_CFG_RX: + case MAX44000_REG_CFG_TX: + case MAX44000_REG_ALS_DATA_HI: + case MAX44000_REG_ALS_DATA_LO: + case MAX44000_REG_PRX_DATA: + case MAX44000_REG_ALS_UPTHR_HI: + case MAX44000_REG_ALS_UPTHR_LO: + case MAX44000_REG_ALS_LOTHR_HI: + case MAX44000_REG_ALS_LOTHR_LO: + case MAX44000_REG_PST: + case MAX44000_REG_PRX_IND: + case MAX44000_REG_PRX_THR: + case MAX44000_REG_TRIM_GAIN_GREEN: + case MAX44000_REG_TRIM_GAIN_IR: + return true; + default: + return false; + } +} + +static bool max44000_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case MAX44000_REG_CFG_MAIN: + case MAX44000_REG_CFG_RX: + case MAX44000_REG_CFG_TX: + case MAX44000_REG_ALS_UPTHR_HI: + case MAX44000_REG_ALS_UPTHR_LO: + case MAX44000_REG_ALS_LOTHR_HI: + case MAX44000_REG_ALS_LOTHR_LO: + case MAX44000_REG_PST: + case MAX44000_REG_PRX_IND: + case MAX44000_REG_PRX_THR: + case MAX44000_REG_TRIM_GAIN_GREEN: + case MAX44000_REG_TRIM_GAIN_IR: + return true; + default: + return false; + } +} + +static bool max44000_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case MAX44000_REG_STATUS: + case MAX44000_REG_ALS_DATA_HI: + case MAX44000_REG_ALS_DATA_LO: + case MAX44000_REG_PRX_DATA: + return true; + default: + return false; + } +} + +static bool max44000_precious_reg(struct device *dev, unsigned int reg) +{ + return reg == MAX44000_REG_STATUS; +} + +static const struct regmap_config max44000_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = MAX44000_REG_PRX_DATA, + .readable_reg = max44000_readable_reg, + .writeable_reg = max44000_writeable_reg, + .volatile_reg = max44000_volatile_reg, + .precious_reg = max44000_precious_reg, + + .use_single_rw = 1, + .cache_type = REGCACHE_RBTREE, +}; + +static int max44000_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct max44000_data *data; + struct iio_dev *indio_dev; + int ret, reg; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + data = iio_priv(indio_dev); + data->regmap = devm_regmap_init_i2c(client, &max44000_regmap_config); + if (IS_ERR(data->regmap)) { + dev_err(&client->dev, "regmap_init failed!\n"); + return PTR_ERR(data->regmap); + } + + i2c_set_clientdata(client, indio_dev); + mutex_init(&data->lock); + indio_dev->dev.parent = &client->dev; + indio_dev->info = &max44000_info; + indio_dev->name = MAX44000_DRV_NAME; + indio_dev->channels = max44000_channels; + indio_dev->num_channels = ARRAY_SIZE(max44000_channels); + + /* + * The device doesn't have a reset function so we just clear some + * important bits at probe time to ensure sane operation. + * + * Since we don't support interrupts/events the threshold values are + * not important. We also don't touch trim values. + */ + + /* Reset ALS scaling bits */ + ret = regmap_write(data->regmap, MAX44000_REG_CFG_RX, MAX44000_REG_CFG_RX_DEFAULT); + if (ret < 0) { + dev_err(&client->dev, "failed to write default CFG_RX: %d\n", ret); + return ret; + } + + /* Reset CFG bits to ALS-only mode and no interrupts */ + reg = MAX44000_CFG_TRIM | MAX44000_CFG_MODE_ALS_GIR; + ret = regmap_write(data->regmap, MAX44000_REG_CFG_MAIN, reg); + if (ret < 0) { + dev_err(&client->dev, "failed to write init config: %d\n", ret); + return ret; + } + + /* Read status at least once to clear any stale interrupt bits. */ + ret = regmap_read(data->regmap, MAX44000_REG_STATUS, ®); + if (ret < 0) { + dev_err(&client->dev, "failed to read init status: %d\n", ret); + return ret; + } + + return iio_device_register(indio_dev); +} + +static int max44000_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + + iio_device_unregister(indio_dev); + + return 0; +} + +static const struct i2c_device_id max44000_id[] = { + {"max44000", 0}, + { } +}; +MODULE_DEVICE_TABLE(i2c, max44000_id); + +#ifdef CONFIG_ACPI +static const struct acpi_device_id max44000_acpi_match[] = { + {"MAX44000", 0}, + { } +}; +MODULE_DEVICE_TABLE(acpi, max44000_acpi_match); +#endif + +static struct i2c_driver max44000_driver = { + .driver = { + .name = MAX44000_DRV_NAME, + .acpi_match_table = ACPI_PTR(max44000_acpi_match), + }, + .probe = max44000_probe, + .remove = max44000_remove, + .id_table = max44000_id, +}; + +module_i2c_driver(max44000_driver); + +MODULE_AUTHOR("Crestez Dan Leonard "); +MODULE_DESCRIPTION("MAX44000 Ambient and Infrared Proximity Sensor"); +MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From 35b651f391909c80d705533d3e0f7228d42b98a0 Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Mon, 18 Apr 2016 17:31:54 +0300 Subject: max44000: Initial support for proximity reading The proximity sensor relies on sending pulses to an external IR led and it is disabled by default on powerup. The driver will enable it with a default power setting. Signed-off-by: Crestez Dan Leonard Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c index 5ed7934..4bce7e1 100644 --- a/drivers/iio/light/max44000.c +++ b/drivers/iio/light/max44000.c @@ -59,6 +59,11 @@ */ #define MAX44000_REG_CFG_RX_DEFAULT 0xf0 +/* REG_TX bits */ +#define MAX44000_LED_CURRENT_MASK 0xf +#define MAX44000_LED_CURRENT_MAX 11 +#define MAX44000_LED_CURRENT_DEFAULT 6 + #define MAX44000_ALSDATA_OVERFLOW 0x4000 struct max44000_data { @@ -75,6 +80,11 @@ static const struct iio_chan_spec max44000_channels[] = { .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), }, + { + .type = IIO_PROXIMITY, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), + }, }; static int max44000_read_alsval(struct max44000_data *data) @@ -104,11 +114,23 @@ static int max44000_read_alsval(struct max44000_data *data) return regval; } +static int max44000_write_led_current_raw(struct max44000_data *data, int val) +{ + /* Maybe we should clamp the value instead? */ + if (val < 0 || val > MAX44000_LED_CURRENT_MAX) + return -ERANGE; + if (val >= 8) + val += 4; + return regmap_write_bits(data->regmap, MAX44000_REG_CFG_TX, + MAX44000_LED_CURRENT_MASK, val); +} + static int max44000_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { struct max44000_data *data = iio_priv(indio_dev); + unsigned int regval; int ret; switch (mask) { @@ -123,6 +145,15 @@ static int max44000_read_raw(struct iio_dev *indio_dev, *val = ret; return IIO_VAL_INT; + case IIO_PROXIMITY: + mutex_lock(&data->lock); + ret = regmap_read(data->regmap, MAX44000_REG_PRX_DATA, ®val); + mutex_unlock(&data->lock); + if (ret < 0) + return ret; + *val = regval; + return IIO_VAL_INT; + default: return -EINVAL; } @@ -260,14 +291,26 @@ static int max44000_probe(struct i2c_client *client, */ /* Reset ALS scaling bits */ - ret = regmap_write(data->regmap, MAX44000_REG_CFG_RX, MAX44000_REG_CFG_RX_DEFAULT); + ret = regmap_write(data->regmap, MAX44000_REG_CFG_RX, + MAX44000_REG_CFG_RX_DEFAULT); + if (ret < 0) { + dev_err(&client->dev, "failed to write default CFG_RX: %d\n", + ret); + return ret; + } + + /* + * By default the LED pulse used for the proximity sensor is disabled. + * Set a middle value so that we get some sort of valid data by default. + */ + ret = max44000_write_led_current_raw(data, MAX44000_LED_CURRENT_DEFAULT); if (ret < 0) { - dev_err(&client->dev, "failed to write default CFG_RX: %d\n", ret); + dev_err(&client->dev, "failed to write init config: %d\n", ret); return ret; } - /* Reset CFG bits to ALS-only mode and no interrupts */ - reg = MAX44000_CFG_TRIM | MAX44000_CFG_MODE_ALS_GIR; + /* Reset CFG bits to ALS_PRX mode which allows easy reading of both values. */ + reg = MAX44000_CFG_TRIM | MAX44000_CFG_MODE_ALS_PRX; ret = regmap_write(data->regmap, MAX44000_REG_CFG_MAIN, reg); if (ret < 0) { dev_err(&client->dev, "failed to write init config: %d\n", ret); -- cgit v0.10.2 From 237a378b3bde0b3c1d1c47f7a3982c86a6728cdf Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Mon, 18 Apr 2016 17:31:55 +0300 Subject: max44000: Support controlling LED current output This is exposed as an output channel with "led" as an extend_name. Other sensors also have support for controlling an external LED. It's not clear that simply exposing an undecorated output channel is the correct approach. Signed-off-by: Crestez Dan Leonard Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c index 4bce7e1..f0f1a8a 100644 --- a/drivers/iio/light/max44000.c +++ b/drivers/iio/light/max44000.c @@ -85,6 +85,13 @@ static const struct iio_chan_spec max44000_channels[] = { .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), }, + { + .type = IIO_CURRENT, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE), + .extend_name = "led", + .output = 1, + }, }; static int max44000_read_alsval(struct max44000_data *data) @@ -125,6 +132,20 @@ static int max44000_write_led_current_raw(struct max44000_data *data, int val) MAX44000_LED_CURRENT_MASK, val); } +static int max44000_read_led_current_raw(struct max44000_data *data) +{ + unsigned int regval; + int ret; + + ret = regmap_read(data->regmap, MAX44000_REG_CFG_TX, ®val); + if (ret < 0) + return ret; + regval &= MAX44000_LED_CURRENT_MASK; + if (regval >= 8) + regval -= 4; + return regval; +} + static int max44000_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) @@ -154,12 +175,26 @@ static int max44000_read_raw(struct iio_dev *indio_dev, *val = regval; return IIO_VAL_INT; + case IIO_CURRENT: + mutex_lock(&data->lock); + ret = max44000_read_led_current_raw(data); + mutex_unlock(&data->lock); + if (ret < 0) + return ret; + *val = ret; + return IIO_VAL_INT; + default: return -EINVAL; } case IIO_CHAN_INFO_SCALE: switch (chan->type) { + case IIO_CURRENT: + /* Output register is in 10s of miliamps */ + *val = 10; + return IIO_VAL_INT; + case IIO_LIGHT: *val = 1; *val2 = MAX44000_ALS_TO_LUX_DEFAULT_FRACTION_LOG2; @@ -174,9 +209,27 @@ static int max44000_read_raw(struct iio_dev *indio_dev, } } +static int max44000_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct max44000_data *data = iio_priv(indio_dev); + int ret; + + if (mask == IIO_CHAN_INFO_RAW && chan->type == IIO_CURRENT) { + mutex_lock(&data->lock); + ret = max44000_write_led_current_raw(data, val); + mutex_unlock(&data->lock); + return ret; + } + + return -EINVAL; +} + static const struct iio_info max44000_info = { .driver_module = THIS_MODULE, .read_raw = max44000_read_raw, + .write_raw = max44000_write_raw, }; static bool max44000_readable_reg(struct device *dev, unsigned int reg) -- cgit v0.10.2 From d5d8f49b634520a98337fd413eef86da4e63e4fd Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Mon, 18 Apr 2016 17:31:56 +0300 Subject: max44000: Expose ambient sensor scaling This patch exposes ALSTIM as illuminance_integration_time and ALSPGA as illuminance_scale. Changing ALSTIM also changes the number of bits available in the data register. This is handled inside raw value reading because: * It's very easy to shift a few bits * It allows SCALE and INT_TIME to be completely independent controls * Buffer support requires constant scan_type.realbits per-channel Signed-off-by: Crestez Dan Leonard Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c index f0f1a8a..05e1169 100644 --- a/drivers/iio/light/max44000.c +++ b/drivers/iio/light/max44000.c @@ -59,6 +59,12 @@ */ #define MAX44000_REG_CFG_RX_DEFAULT 0xf0 +/* REG_RX bits */ +#define MAX44000_CFG_RX_ALSTIM_MASK 0x0c +#define MAX44000_CFG_RX_ALSTIM_SHIFT 2 +#define MAX44000_CFG_RX_ALSPGA_MASK 0x03 +#define MAX44000_CFG_RX_ALSPGA_SHIFT 0 + /* REG_TX bits */ #define MAX44000_LED_CURRENT_MASK 0xf #define MAX44000_LED_CURRENT_MAX 11 @@ -74,11 +80,57 @@ struct max44000_data { /* Default scale is set to the minimum of 0.03125 or 1 / (1 << 5) lux */ #define MAX44000_ALS_TO_LUX_DEFAULT_FRACTION_LOG2 5 +/* Scale can be multiplied by up to 128x via ALSPGA for measurement gain */ +static const int max44000_alspga_shift[] = {0, 2, 4, 7}; +#define MAX44000_ALSPGA_MAX_SHIFT 7 + +/* + * Scale can be multiplied by up to 64x via ALSTIM because of lost resolution + * + * This scaling factor is hidden from userspace and instead accounted for when + * reading raw values from the device. + * + * This makes it possible to cleanly expose ALSPGA as IIO_CHAN_INFO_SCALE and + * ALSTIM as IIO_CHAN_INFO_INT_TIME without the values affecting each other. + * + * Handling this internally is also required for buffer support because the + * channel's scan_type can't be modified dynamically. + */ +static const int max44000_alstim_shift[] = {0, 2, 4, 6}; +#define MAX44000_ALSTIM_SHIFT(alstim) (2 * (alstim)) + +/* Available integration times with pretty manual alignment: */ +static const int max44000_int_time_avail_ns_array[] = { + 100000000, + 25000000, + 6250000, + 1562500, +}; +static const char max44000_int_time_avail_str[] = + "0.100 " + "0.025 " + "0.00625 " + "0.001625"; + +/* Available scales (internal to ulux) with pretty manual alignment: */ +static const int max44000_scale_avail_ulux_array[] = { + 31250, + 125000, + 500000, + 4000000, +}; +static const char max44000_scale_avail_str[] = + "0.03125 " + "0.125 " + "0.5 " + "4"; + static const struct iio_chan_spec max44000_channels[] = { { .type = IIO_LIGHT, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), - .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_INT_TIME), }, { .type = IIO_PROXIMITY, @@ -94,15 +146,54 @@ static const struct iio_chan_spec max44000_channels[] = { }, }; +static int max44000_read_alstim(struct max44000_data *data) +{ + unsigned int val; + int ret; + + ret = regmap_read(data->regmap, MAX44000_REG_CFG_RX, &val); + if (ret < 0) + return ret; + return (val & MAX44000_CFG_RX_ALSTIM_MASK) >> MAX44000_CFG_RX_ALSTIM_SHIFT; +} + +static int max44000_write_alstim(struct max44000_data *data, int val) +{ + return regmap_write_bits(data->regmap, MAX44000_REG_CFG_RX, + MAX44000_CFG_RX_ALSTIM_MASK, + val << MAX44000_CFG_RX_ALSTIM_SHIFT); +} + +static int max44000_read_alspga(struct max44000_data *data) +{ + unsigned int val; + int ret; + + ret = regmap_read(data->regmap, MAX44000_REG_CFG_RX, &val); + if (ret < 0) + return ret; + return (val & MAX44000_CFG_RX_ALSPGA_MASK) >> MAX44000_CFG_RX_ALSPGA_SHIFT; +} + +static int max44000_write_alspga(struct max44000_data *data, int val) +{ + return regmap_write_bits(data->regmap, MAX44000_REG_CFG_RX, + MAX44000_CFG_RX_ALSPGA_MASK, + val << MAX44000_CFG_RX_ALSPGA_SHIFT); +} + static int max44000_read_alsval(struct max44000_data *data) { u16 regval; - int ret; + int alstim, ret; ret = regmap_bulk_read(data->regmap, MAX44000_REG_ALS_DATA_HI, ®val, sizeof(regval)); if (ret < 0) return ret; + alstim = ret = max44000_read_alstim(data); + if (ret < 0) + return ret; regval = be16_to_cpu(regval); @@ -118,7 +209,7 @@ static int max44000_read_alsval(struct max44000_data *data) if (regval & MAX44000_ALSDATA_OVERFLOW) return 0x3FFF; - return regval; + return regval << MAX44000_ALSTIM_SHIFT(alstim); } static int max44000_write_led_current_raw(struct max44000_data *data, int val) @@ -151,6 +242,7 @@ static int max44000_read_raw(struct iio_dev *indio_dev, int *val, int *val2, long mask) { struct max44000_data *data = iio_priv(indio_dev); + int alstim, alspga; unsigned int regval; int ret; @@ -196,14 +288,34 @@ static int max44000_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT; case IIO_LIGHT: - *val = 1; - *val2 = MAX44000_ALS_TO_LUX_DEFAULT_FRACTION_LOG2; + mutex_lock(&data->lock); + alspga = ret = max44000_read_alspga(data); + mutex_unlock(&data->lock); + if (ret < 0) + return ret; + + /* Avoid negative shifts */ + *val = (1 << MAX44000_ALSPGA_MAX_SHIFT); + *val2 = MAX44000_ALS_TO_LUX_DEFAULT_FRACTION_LOG2 + + MAX44000_ALSPGA_MAX_SHIFT + - max44000_alspga_shift[alspga]; return IIO_VAL_FRACTIONAL_LOG2; default: return -EINVAL; } + case IIO_CHAN_INFO_INT_TIME: + mutex_lock(&data->lock); + alstim = ret = max44000_read_alstim(data); + mutex_unlock(&data->lock); + + if (ret < 0) + return ret; + *val = 0; + *val2 = max44000_int_time_avail_ns_array[alstim]; + return IIO_VAL_INT_PLUS_NANO; + default: return -EINVAL; } @@ -221,15 +333,60 @@ static int max44000_write_raw(struct iio_dev *indio_dev, ret = max44000_write_led_current_raw(data, val); mutex_unlock(&data->lock); return ret; + } else if (mask == IIO_CHAN_INFO_INT_TIME && chan->type == IIO_LIGHT) { + s64 valns = val * NSEC_PER_SEC + val2; + int alstim = find_closest_descending(valns, + max44000_int_time_avail_ns_array, + ARRAY_SIZE(max44000_int_time_avail_ns_array)); + mutex_lock(&data->lock); + ret = max44000_write_alstim(data, alstim); + mutex_unlock(&data->lock); + return ret; + } else if (mask == IIO_CHAN_INFO_SCALE && chan->type == IIO_LIGHT) { + s64 valus = val * USEC_PER_SEC + val2; + int alspga = find_closest(valus, + max44000_scale_avail_ulux_array, + ARRAY_SIZE(max44000_scale_avail_ulux_array)); + mutex_lock(&data->lock); + ret = max44000_write_alspga(data, alspga); + mutex_unlock(&data->lock); + return ret; } return -EINVAL; } +static int max44000_write_raw_get_fmt(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + long mask) +{ + if (mask == IIO_CHAN_INFO_INT_TIME && chan->type == IIO_LIGHT) + return IIO_VAL_INT_PLUS_NANO; + else if (mask == IIO_CHAN_INFO_SCALE && chan->type == IIO_LIGHT) + return IIO_VAL_INT_PLUS_MICRO; + else + return IIO_VAL_INT; +} + +static IIO_CONST_ATTR(illuminance_integration_time_available, max44000_int_time_avail_str); +static IIO_CONST_ATTR(illuminance_scale_available, max44000_scale_avail_str); + +static struct attribute *max44000_attributes[] = { + &iio_const_attr_illuminance_integration_time_available.dev_attr.attr, + &iio_const_attr_illuminance_scale_available.dev_attr.attr, + NULL +}; + +static const struct attribute_group max44000_attribute_group = { + .attrs = max44000_attributes, +}; + static const struct iio_info max44000_info = { .driver_module = THIS_MODULE, .read_raw = max44000_read_raw, .write_raw = max44000_write_raw, + .write_raw_get_fmt = max44000_write_raw_get_fmt, + .attrs = &max44000_attribute_group, }; static bool max44000_readable_reg(struct device *dev, unsigned int reg) -- cgit v0.10.2 From 06ad7ea10e2bcf70a602e504ea32ee6ef6d77aa9 Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Mon, 18 Apr 2016 17:31:57 +0300 Subject: max44000: Initial triggered buffer support Signed-off-by: Crestez Dan Leonard Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c index 05e1169..e01e58a 100644 --- a/drivers/iio/light/max44000.c +++ b/drivers/iio/light/max44000.c @@ -19,6 +19,9 @@ #include #include #include +#include +#include +#include #include #define MAX44000_DRV_NAME "max44000" @@ -125,24 +128,41 @@ static const char max44000_scale_avail_str[] = "0.5 " "4"; +#define MAX44000_SCAN_INDEX_ALS 0 +#define MAX44000_SCAN_INDEX_PRX 1 + static const struct iio_chan_spec max44000_channels[] = { { .type = IIO_LIGHT, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_INT_TIME), + .scan_index = MAX44000_SCAN_INDEX_ALS, + .scan_type = { + .sign = 'u', + .realbits = 14, + .storagebits = 16, + } }, { .type = IIO_PROXIMITY, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), + .scan_index = MAX44000_SCAN_INDEX_PRX, + .scan_type = { + .sign = 'u', + .realbits = 8, + .storagebits = 16, + } }, + IIO_CHAN_SOFT_TIMESTAMP(2), { .type = IIO_CURRENT, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), .extend_name = "led", .output = 1, + .scan_index = -1, }, }; @@ -467,6 +487,41 @@ static const struct regmap_config max44000_regmap_config = { .cache_type = REGCACHE_RBTREE, }; +static irqreturn_t max44000_trigger_handler(int irq, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct max44000_data *data = iio_priv(indio_dev); + u16 buf[8]; /* 2x u16 + padding + 8 bytes timestamp */ + int index = 0; + unsigned int regval; + int ret; + + mutex_lock(&data->lock); + if (test_bit(MAX44000_SCAN_INDEX_ALS, indio_dev->active_scan_mask)) { + ret = max44000_read_alsval(data); + if (ret < 0) + goto out_unlock; + buf[index++] = ret; + } + if (test_bit(MAX44000_SCAN_INDEX_PRX, indio_dev->active_scan_mask)) { + ret = regmap_read(data->regmap, MAX44000_REG_PRX_DATA, ®val); + if (ret < 0) + goto out_unlock; + buf[index] = regval; + } + mutex_unlock(&data->lock); + + iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns()); + iio_trigger_notify_done(indio_dev->trig); + return IRQ_HANDLED; + +out_unlock: + mutex_unlock(&data->lock); + iio_trigger_notify_done(indio_dev->trig); + return IRQ_HANDLED; +} + static int max44000_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -534,6 +589,12 @@ static int max44000_probe(struct i2c_client *client, return ret; } + ret = iio_triggered_buffer_setup(indio_dev, NULL, max44000_trigger_handler, NULL); + if (ret < 0) { + dev_err(&client->dev, "iio triggered buffer setup failed\n"); + return ret; + } + return iio_device_register(indio_dev); } @@ -542,6 +603,7 @@ static int max44000_remove(struct i2c_client *client) struct iio_dev *indio_dev = i2c_get_clientdata(client); iio_device_unregister(indio_dev); + iio_triggered_buffer_cleanup(indio_dev); return 0; } -- cgit v0.10.2 From 6dba72eca7fb879bf2e0c8fdc784fb974cb4f9d5 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sun, 24 Apr 2016 22:52:10 +0900 Subject: iio: pressure: bmp280: add support for BMP180 This adds support for the BMP180 to the bmp280 iio driver. The BMP180 has already been supported by misc/bmp085 driver but it doesn't use iio framework. This change adds the kconfig dependency not to be selected both of them in order to avoid any issues. Signed-off-by: Akinobu Mita Acked-by: Vlad Dogaru Cc: Christoph Mair Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig index 54c6165..cda9f12 100644 --- a/drivers/iio/pressure/Kconfig +++ b/drivers/iio/pressure/Kconfig @@ -6,12 +6,13 @@ menu "Pressure sensors" config BMP280 - tristate "Bosch Sensortec BMP280 pressure sensor driver" + tristate "Bosch Sensortec BMP180 and BMP280 pressure sensor driver" depends on I2C + depends on !(BMP085_I2C=y || BMP085_I2C=m) select REGMAP_I2C help - Say yes here to build support for Bosch Sensortec BMP280 - pressure and temperature sensor. + Say yes here to build support for Bosch Sensortec BMP180 and BMP280 + pressure and temperature sensors. To compile this driver as a module, choose M here: the module will be called bmp280. diff --git a/drivers/iio/pressure/bmp280.c b/drivers/iio/pressure/bmp280.c index a2602d8..dcf3b0a 100644 --- a/drivers/iio/pressure/bmp280.c +++ b/drivers/iio/pressure/bmp280.c @@ -1,12 +1,15 @@ /* * Copyright (c) 2014 Intel Corporation * - * Driver for Bosch Sensortec BMP280 digital pressure sensor. + * Driver for Bosch Sensortec BMP180 and BMP280 digital pressure sensor. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * + * Datasheet: + * https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMP180-DS000-121.pdf + * https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMP280-DS001-12.pdf */ #define pr_fmt(fmt) "bmp280: " fmt @@ -15,9 +18,11 @@ #include #include #include +#include #include #include +/* BMP280 specific registers */ #define BMP280_REG_TEMP_XLSB 0xFC #define BMP280_REG_TEMP_LSB 0xFB #define BMP280_REG_TEMP_MSB 0xFA @@ -26,10 +31,7 @@ #define BMP280_REG_PRESS_MSB 0xF7 #define BMP280_REG_CONFIG 0xF5 -#define BMP280_REG_CTRL_MEAS 0xF4 #define BMP280_REG_STATUS 0xF3 -#define BMP280_REG_RESET 0xE0 -#define BMP280_REG_ID 0xD0 #define BMP280_REG_COMP_TEMP_START 0x88 #define BMP280_COMP_TEMP_REG_COUNT 6 @@ -65,6 +67,28 @@ #define BMP280_MODE_FORCED BIT(0) #define BMP280_MODE_NORMAL (BIT(1) | BIT(0)) +/* BMP180 specific registers */ +#define BMP180_REG_OUT_XLSB 0xF8 +#define BMP180_REG_OUT_LSB 0xF7 +#define BMP180_REG_OUT_MSB 0xF6 + +#define BMP180_REG_CALIB_START 0xAA +#define BMP180_REG_CALIB_COUNT 22 + +#define BMP180_MEAS_SCO BIT(5) +#define BMP180_MEAS_TEMP (0x0E | BMP180_MEAS_SCO) +#define BMP180_MEAS_PRESS_X(oss) ((oss) << 6 | 0x14 | BMP180_MEAS_SCO) +#define BMP180_MEAS_PRESS_1X BMP180_MEAS_PRESS_X(0) +#define BMP180_MEAS_PRESS_2X BMP180_MEAS_PRESS_X(1) +#define BMP180_MEAS_PRESS_4X BMP180_MEAS_PRESS_X(2) +#define BMP180_MEAS_PRESS_8X BMP180_MEAS_PRESS_X(3) + +/* BMP180 and BMP280 common registers */ +#define BMP280_REG_CTRL_MEAS 0xF4 +#define BMP280_REG_RESET 0xE0 +#define BMP280_REG_ID 0xD0 + +#define BMP180_CHIP_ID 0x55 #define BMP280_CHIP_ID 0x58 #define BMP280_SOFT_RESET_VAL 0xB6 @@ -72,6 +96,7 @@ struct bmp280_data { struct i2c_client *client; struct mutex lock; struct regmap *regmap; + const struct bmp280_chip_info *chip_info; /* * Carryover value from temperature conversion, used in pressure @@ -80,9 +105,17 @@ struct bmp280_data { s32 t_fine; }; +struct bmp280_chip_info { + const struct regmap_config *regmap_config; + + int (*chip_config)(struct bmp280_data *); + int (*read_temp)(struct bmp280_data *, int *); + int (*read_press)(struct bmp280_data *, int *, int *); +}; + /* * These enums are used for indexing into the array of compensation - * parameters. + * parameters for BMP280. */ enum { T1, T2, T3 }; enum { P1, P2, P3, P4, P5, P6, P7, P8, P9 }; @@ -290,10 +323,10 @@ static int bmp280_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_PROCESSED: switch (chan->type) { case IIO_PRESSURE: - ret = bmp280_read_press(data, val, val2); + ret = data->chip_info->read_press(data, val, val2); break; case IIO_TEMP: - ret = bmp280_read_temp(data, val); + ret = data->chip_info->read_temp(data, val); break; default: ret = -EINVAL; @@ -315,7 +348,7 @@ static const struct iio_info bmp280_info = { .read_raw = &bmp280_read_raw, }; -static int bmp280_chip_init(struct bmp280_data *data) +static int bmp280_chip_config(struct bmp280_data *data) { int ret; @@ -344,6 +377,296 @@ static int bmp280_chip_init(struct bmp280_data *data) return ret; } +static const struct bmp280_chip_info bmp280_chip_info = { + .regmap_config = &bmp280_regmap_config, + .chip_config = bmp280_chip_config, + .read_temp = bmp280_read_temp, + .read_press = bmp280_read_press, +}; + +static bool bmp180_is_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case BMP280_REG_CTRL_MEAS: + case BMP280_REG_RESET: + return true; + default: + return false; + }; +} + +static bool bmp180_is_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case BMP180_REG_OUT_XLSB: + case BMP180_REG_OUT_LSB: + case BMP180_REG_OUT_MSB: + case BMP280_REG_CTRL_MEAS: + return true; + default: + return false; + } +} + +static const struct regmap_config bmp180_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = BMP180_REG_OUT_XLSB, + .cache_type = REGCACHE_RBTREE, + + .writeable_reg = bmp180_is_writeable_reg, + .volatile_reg = bmp180_is_volatile_reg, +}; + +static int bmp180_measure(struct bmp280_data *data, u8 ctrl_meas) +{ + int ret; + const int conversion_time_max[] = { 4500, 7500, 13500, 25500 }; + unsigned int delay_us; + unsigned int ctrl; + + ret = regmap_write(data->regmap, BMP280_REG_CTRL_MEAS, ctrl_meas); + if (ret) + return ret; + + if (ctrl_meas == BMP180_MEAS_TEMP) + delay_us = 4500; + else + delay_us = conversion_time_max[ilog2(8)]; + + usleep_range(delay_us, delay_us + 1000); + + ret = regmap_read(data->regmap, BMP280_REG_CTRL_MEAS, &ctrl); + if (ret) + return ret; + + /* The value of this bit reset to "0" after conversion is complete */ + if (ctrl & BMP180_MEAS_SCO) + return -EIO; + + return 0; +} + +static int bmp180_read_adc_temp(struct bmp280_data *data, int *val) +{ + int ret; + __be16 tmp = 0; + + ret = bmp180_measure(data, BMP180_MEAS_TEMP); + if (ret) + return ret; + + ret = regmap_bulk_read(data->regmap, BMP180_REG_OUT_MSB, (u8 *)&tmp, 2); + if (ret) + return ret; + + *val = be16_to_cpu(tmp); + + return 0; +} + +/* + * These enums are used for indexing into the array of calibration + * coefficients for BMP180. + */ +enum { AC1, AC2, AC3, AC4, AC5, AC6, B1, B2, MB, MC, MD }; + +struct bmp180_calib { + s16 AC1; + s16 AC2; + s16 AC3; + u16 AC4; + u16 AC5; + u16 AC6; + s16 B1; + s16 B2; + s16 MB; + s16 MC; + s16 MD; +}; + +static int bmp180_read_calib(struct bmp280_data *data, + struct bmp180_calib *calib) +{ + int ret; + int i; + __be16 buf[BMP180_REG_CALIB_COUNT / 2]; + + ret = regmap_bulk_read(data->regmap, BMP180_REG_CALIB_START, buf, + sizeof(buf)); + + if (ret < 0) + return ret; + + /* None of the words has the value 0 or 0xFFFF */ + for (i = 0; i < ARRAY_SIZE(buf); i++) { + if (buf[i] == cpu_to_be16(0) || buf[i] == cpu_to_be16(0xffff)) + return -EIO; + } + + calib->AC1 = be16_to_cpu(buf[AC1]); + calib->AC2 = be16_to_cpu(buf[AC2]); + calib->AC3 = be16_to_cpu(buf[AC3]); + calib->AC4 = be16_to_cpu(buf[AC4]); + calib->AC5 = be16_to_cpu(buf[AC5]); + calib->AC6 = be16_to_cpu(buf[AC6]); + calib->B1 = be16_to_cpu(buf[B1]); + calib->B2 = be16_to_cpu(buf[B2]); + calib->MB = be16_to_cpu(buf[MB]); + calib->MC = be16_to_cpu(buf[MC]); + calib->MD = be16_to_cpu(buf[MD]); + + return 0; +} + +/* + * Returns temperature in DegC, resolution is 0.1 DegC. + * t_fine carries fine temperature as global value. + * + * Taken from datasheet, Section 3.5, "Calculating pressure and temperature". + */ +static s32 bmp180_compensate_temp(struct bmp280_data *data, s32 adc_temp) +{ + int ret; + s32 x1, x2; + struct bmp180_calib calib; + + ret = bmp180_read_calib(data, &calib); + if (ret < 0) { + dev_err(&data->client->dev, + "failed to read calibration coefficients\n"); + return ret; + } + + x1 = ((adc_temp - calib.AC6) * calib.AC5) >> 15; + x2 = (calib.MC << 11) / (x1 + calib.MD); + data->t_fine = x1 + x2; + + return (data->t_fine + 8) >> 4; +} + +static int bmp180_read_temp(struct bmp280_data *data, int *val) +{ + int ret; + s32 adc_temp, comp_temp; + + ret = bmp180_read_adc_temp(data, &adc_temp); + if (ret) + return ret; + + comp_temp = bmp180_compensate_temp(data, adc_temp); + + /* + * val might be NULL if we're called by the read_press routine, + * who only cares about the carry over t_fine value. + */ + if (val) { + *val = comp_temp * 100; + return IIO_VAL_INT; + } + + return 0; +} + +static int bmp180_read_adc_press(struct bmp280_data *data, int *val) +{ + int ret; + __be32 tmp = 0; + u8 oss = ilog2(8); + + ret = bmp180_measure(data, BMP180_MEAS_PRESS_X(oss)); + if (ret) + return ret; + + ret = regmap_bulk_read(data->regmap, BMP180_REG_OUT_MSB, (u8 *)&tmp, 3); + if (ret) + return ret; + + *val = (be32_to_cpu(tmp) >> 8) >> (8 - oss); + + return 0; +} + +/* + * Returns pressure in Pa, resolution is 1 Pa. + * + * Taken from datasheet, Section 3.5, "Calculating pressure and temperature". + */ +static u32 bmp180_compensate_press(struct bmp280_data *data, s32 adc_press) +{ + int ret; + s32 x1, x2, x3, p; + s32 b3, b6; + u32 b4, b7; + s32 oss = ilog2(8); + struct bmp180_calib calib; + + ret = bmp180_read_calib(data, &calib); + if (ret < 0) { + dev_err(&data->client->dev, + "failed to read calibration coefficients\n"); + return ret; + } + + b6 = data->t_fine - 4000; + x1 = (calib.B2 * (b6 * b6 >> 12)) >> 11; + x2 = calib.AC2 * b6 >> 11; + x3 = x1 + x2; + b3 = ((((s32)calib.AC1 * 4 + x3) << oss) + 2) / 4; + x1 = calib.AC3 * b6 >> 13; + x2 = (calib.B1 * ((b6 * b6) >> 12)) >> 16; + x3 = (x1 + x2 + 2) >> 2; + b4 = calib.AC4 * (u32)(x3 + 32768) >> 15; + b7 = ((u32)adc_press - b3) * (50000 >> oss); + if (b7 < 0x80000000) + p = (b7 * 2) / b4; + else + p = (b7 / b4) * 2; + + x1 = (p >> 8) * (p >> 8); + x1 = (x1 * 3038) >> 16; + x2 = (-7357 * p) >> 16; + + return p + ((x1 + x2 + 3791) >> 4); +} + +static int bmp180_read_press(struct bmp280_data *data, + int *val, int *val2) +{ + int ret; + s32 adc_press; + u32 comp_press; + + /* Read and compensate temperature so we get a reading of t_fine. */ + ret = bmp180_read_temp(data, NULL); + if (ret) + return ret; + + ret = bmp180_read_adc_press(data, &adc_press); + if (ret) + return ret; + + comp_press = bmp180_compensate_press(data, adc_press); + + *val = comp_press; + *val2 = 1000; + + return IIO_VAL_FRACTIONAL; +} + +static int bmp180_chip_config(struct bmp280_data *data) +{ + return 0; +} + +static const struct bmp280_chip_info bmp180_chip_info = { + .regmap_config = &bmp180_regmap_config, + .chip_config = bmp180_chip_config, + .read_temp = bmp180_read_temp, + .read_press = bmp180_read_press, +}; + static int bmp280_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -367,7 +690,19 @@ static int bmp280_probe(struct i2c_client *client, indio_dev->info = &bmp280_info; indio_dev->modes = INDIO_DIRECT_MODE; - data->regmap = devm_regmap_init_i2c(client, &bmp280_regmap_config); + switch (id->driver_data) { + case BMP180_CHIP_ID: + data->chip_info = &bmp180_chip_info; + break; + case BMP280_CHIP_ID: + data->chip_info = &bmp280_chip_info; + break; + default: + return -EINVAL; + } + + data->regmap = devm_regmap_init_i2c(client, + data->chip_info->regmap_config); if (IS_ERR(data->regmap)) { dev_err(&client->dev, "failed to allocate register map\n"); return PTR_ERR(data->regmap); @@ -376,13 +711,13 @@ static int bmp280_probe(struct i2c_client *client, ret = regmap_read(data->regmap, BMP280_REG_ID, &chip_id); if (ret < 0) return ret; - if (chip_id != BMP280_CHIP_ID) { + if (chip_id != id->driver_data) { dev_err(&client->dev, "bad chip id. expected %x got %x\n", BMP280_CHIP_ID, chip_id); return -EINVAL; } - ret = bmp280_chip_init(data); + ret = data->chip_info->chip_config(data); if (ret < 0) return ret; @@ -390,13 +725,17 @@ static int bmp280_probe(struct i2c_client *client, } static const struct acpi_device_id bmp280_acpi_match[] = { - {"BMP0280", 0}, + {"BMP0280", BMP280_CHIP_ID }, + {"BMP0180", BMP180_CHIP_ID }, + {"BMP0085", BMP180_CHIP_ID }, { }, }; MODULE_DEVICE_TABLE(acpi, bmp280_acpi_match); static const struct i2c_device_id bmp280_id[] = { - {"bmp280", 0}, + {"bmp280", BMP280_CHIP_ID }, + {"bmp180", BMP180_CHIP_ID }, + {"bmp085", BMP180_CHIP_ID }, { }, }; MODULE_DEVICE_TABLE(i2c, bmp280_id); @@ -412,5 +751,5 @@ static struct i2c_driver bmp280_driver = { module_i2c_driver(bmp280_driver); MODULE_AUTHOR("Vlad Dogaru "); -MODULE_DESCRIPTION("Driver for Bosch Sensortec BMP280 pressure and temperature sensor"); +MODULE_DESCRIPTION("Driver for Bosch Sensortec BMP180/BMP280 pressure and temperature sensor"); MODULE_LICENSE("GPL v2"); -- cgit v0.10.2 From 62979904b0037430ecc7d8b682f684adced1340f Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sun, 24 Apr 2016 22:52:11 +0900 Subject: iio: pressure: bmp280: add ability to control oversampling rate This adds ability to control the oversampling ratio of the temperature and pressure measurement for both bmp180 and bmp280. Signed-off-by: Akinobu Mita Acked-by: Vlad Dogaru Cc: Christoph Mair Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/pressure/bmp280.c b/drivers/iio/pressure/bmp280.c index dcf3b0a..2f1498e 100644 --- a/drivers/iio/pressure/bmp280.c +++ b/drivers/iio/pressure/bmp280.c @@ -48,19 +48,21 @@ #define BMP280_OSRS_TEMP_MASK (BIT(7) | BIT(6) | BIT(5)) #define BMP280_OSRS_TEMP_SKIP 0 -#define BMP280_OSRS_TEMP_1X BIT(5) -#define BMP280_OSRS_TEMP_2X BIT(6) -#define BMP280_OSRS_TEMP_4X (BIT(6) | BIT(5)) -#define BMP280_OSRS_TEMP_8X BIT(7) -#define BMP280_OSRS_TEMP_16X (BIT(7) | BIT(5)) +#define BMP280_OSRS_TEMP_X(osrs_t) ((osrs_t) << 5) +#define BMP280_OSRS_TEMP_1X BMP280_OSRS_TEMP_X(1) +#define BMP280_OSRS_TEMP_2X BMP280_OSRS_TEMP_X(2) +#define BMP280_OSRS_TEMP_4X BMP280_OSRS_TEMP_X(3) +#define BMP280_OSRS_TEMP_8X BMP280_OSRS_TEMP_X(4) +#define BMP280_OSRS_TEMP_16X BMP280_OSRS_TEMP_X(5) #define BMP280_OSRS_PRESS_MASK (BIT(4) | BIT(3) | BIT(2)) #define BMP280_OSRS_PRESS_SKIP 0 -#define BMP280_OSRS_PRESS_1X BIT(2) -#define BMP280_OSRS_PRESS_2X BIT(3) -#define BMP280_OSRS_PRESS_4X (BIT(3) | BIT(2)) -#define BMP280_OSRS_PRESS_8X BIT(4) -#define BMP280_OSRS_PRESS_16X (BIT(4) | BIT(2)) +#define BMP280_OSRS_PRESS_X(osrs_p) ((osrs_p) << 2) +#define BMP280_OSRS_PRESS_1X BMP280_OSRS_PRESS_X(1) +#define BMP280_OSRS_PRESS_2X BMP280_OSRS_PRESS_X(2) +#define BMP280_OSRS_PRESS_4X BMP280_OSRS_PRESS_X(3) +#define BMP280_OSRS_PRESS_8X BMP280_OSRS_PRESS_X(4) +#define BMP280_OSRS_PRESS_16X BMP280_OSRS_PRESS_X(5) #define BMP280_MODE_MASK (BIT(1) | BIT(0)) #define BMP280_MODE_SLEEP 0 @@ -98,6 +100,10 @@ struct bmp280_data { struct regmap *regmap; const struct bmp280_chip_info *chip_info; + /* log of base 2 of oversampling rate */ + u8 oversampling_press; + u8 oversampling_temp; + /* * Carryover value from temperature conversion, used in pressure * calculation. @@ -108,6 +114,12 @@ struct bmp280_data { struct bmp280_chip_info { const struct regmap_config *regmap_config; + const int *oversampling_temp_avail; + int num_oversampling_temp_avail; + + const int *oversampling_press_avail; + int num_oversampling_press_avail; + int (*chip_config)(struct bmp280_data *); int (*read_temp)(struct bmp280_data *, int *); int (*read_press)(struct bmp280_data *, int *, int *); @@ -123,11 +135,13 @@ enum { P1, P2, P3, P4, P5, P6, P7, P8, P9 }; static const struct iio_chan_spec bmp280_channels[] = { { .type = IIO_PRESSURE, - .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), + .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) | + BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), }, { .type = IIO_TEMP, - .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), + .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) | + BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO), }, }; @@ -333,6 +347,21 @@ static int bmp280_read_raw(struct iio_dev *indio_dev, break; } break; + case IIO_CHAN_INFO_OVERSAMPLING_RATIO: + switch (chan->type) { + case IIO_PRESSURE: + *val = 1 << data->oversampling_press; + ret = IIO_VAL_INT; + break; + case IIO_TEMP: + *val = 1 << data->oversampling_temp; + ret = IIO_VAL_INT; + break; + default: + ret = -EINVAL; + break; + } + break; default: ret = -EINVAL; break; @@ -343,22 +372,135 @@ static int bmp280_read_raw(struct iio_dev *indio_dev, return ret; } +static int bmp280_write_oversampling_ratio_temp(struct bmp280_data *data, + int val) +{ + int i; + const int *avail = data->chip_info->oversampling_temp_avail; + const int n = data->chip_info->num_oversampling_temp_avail; + + for (i = 0; i < n; i++) { + if (avail[i] == val) { + data->oversampling_temp = ilog2(val); + + return data->chip_info->chip_config(data); + } + } + return -EINVAL; +} + +static int bmp280_write_oversampling_ratio_press(struct bmp280_data *data, + int val) +{ + int i; + const int *avail = data->chip_info->oversampling_press_avail; + const int n = data->chip_info->num_oversampling_press_avail; + + for (i = 0; i < n; i++) { + if (avail[i] == val) { + data->oversampling_press = ilog2(val); + + return data->chip_info->chip_config(data); + } + } + return -EINVAL; +} + +static int bmp280_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + int ret = 0; + struct bmp280_data *data = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_OVERSAMPLING_RATIO: + mutex_lock(&data->lock); + switch (chan->type) { + case IIO_PRESSURE: + ret = bmp280_write_oversampling_ratio_press(data, val); + break; + case IIO_TEMP: + ret = bmp280_write_oversampling_ratio_temp(data, val); + break; + default: + ret = -EINVAL; + break; + } + mutex_unlock(&data->lock); + break; + default: + return -EINVAL; + } + + return ret; +} + +static ssize_t bmp280_show_avail(char *buf, const int *vals, const int n) +{ + size_t len = 0; + int i; + + for (i = 0; i < n; i++) + len += scnprintf(buf + len, PAGE_SIZE - len, "%d ", vals[i]); + + buf[len - 1] = '\n'; + + return len; +} + +static ssize_t bmp280_show_temp_oversampling_avail(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct bmp280_data *data = iio_priv(dev_to_iio_dev(dev)); + + return bmp280_show_avail(buf, data->chip_info->oversampling_temp_avail, + data->chip_info->num_oversampling_temp_avail); +} + +static ssize_t bmp280_show_press_oversampling_avail(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct bmp280_data *data = iio_priv(dev_to_iio_dev(dev)); + + return bmp280_show_avail(buf, data->chip_info->oversampling_press_avail, + data->chip_info->num_oversampling_press_avail); +} + +static IIO_DEVICE_ATTR(in_temp_oversampling_ratio_available, + S_IRUGO, bmp280_show_temp_oversampling_avail, NULL, 0); + +static IIO_DEVICE_ATTR(in_pressure_oversampling_ratio_available, + S_IRUGO, bmp280_show_press_oversampling_avail, NULL, 0); + +static struct attribute *bmp280_attributes[] = { + &iio_dev_attr_in_temp_oversampling_ratio_available.dev_attr.attr, + &iio_dev_attr_in_pressure_oversampling_ratio_available.dev_attr.attr, + NULL, +}; + +static const struct attribute_group bmp280_attrs_group = { + .attrs = bmp280_attributes, +}; + static const struct iio_info bmp280_info = { .driver_module = THIS_MODULE, .read_raw = &bmp280_read_raw, + .write_raw = &bmp280_write_raw, + .attrs = &bmp280_attrs_group, }; static int bmp280_chip_config(struct bmp280_data *data) { int ret; + u8 osrs = BMP280_OSRS_TEMP_X(data->oversampling_temp + 1) | + BMP280_OSRS_PRESS_X(data->oversampling_press + 1); ret = regmap_update_bits(data->regmap, BMP280_REG_CTRL_MEAS, BMP280_OSRS_TEMP_MASK | BMP280_OSRS_PRESS_MASK | BMP280_MODE_MASK, - BMP280_OSRS_TEMP_2X | - BMP280_OSRS_PRESS_16X | - BMP280_MODE_NORMAL); + osrs | BMP280_MODE_NORMAL); if (ret < 0) { dev_err(&data->client->dev, "failed to write ctrl_meas register\n"); @@ -377,8 +519,17 @@ static int bmp280_chip_config(struct bmp280_data *data) return ret; } +static const int bmp280_oversampling_avail[] = { 1, 2, 4, 8, 16 }; + static const struct bmp280_chip_info bmp280_chip_info = { .regmap_config = &bmp280_regmap_config, + + .oversampling_temp_avail = bmp280_oversampling_avail, + .num_oversampling_temp_avail = ARRAY_SIZE(bmp280_oversampling_avail), + + .oversampling_press_avail = bmp280_oversampling_avail, + .num_oversampling_press_avail = ARRAY_SIZE(bmp280_oversampling_avail), + .chip_config = bmp280_chip_config, .read_temp = bmp280_read_temp, .read_press = bmp280_read_press, @@ -433,7 +584,7 @@ static int bmp180_measure(struct bmp280_data *data, u8 ctrl_meas) if (ctrl_meas == BMP180_MEAS_TEMP) delay_us = 4500; else - delay_us = conversion_time_max[ilog2(8)]; + delay_us = conversion_time_max[data->oversampling_press]; usleep_range(delay_us, delay_us + 1000); @@ -573,7 +724,7 @@ static int bmp180_read_adc_press(struct bmp280_data *data, int *val) { int ret; __be32 tmp = 0; - u8 oss = ilog2(8); + u8 oss = data->oversampling_press; ret = bmp180_measure(data, BMP180_MEAS_PRESS_X(oss)); if (ret) @@ -599,7 +750,7 @@ static u32 bmp180_compensate_press(struct bmp280_data *data, s32 adc_press) s32 x1, x2, x3, p; s32 b3, b6; u32 b4, b7; - s32 oss = ilog2(8); + s32 oss = data->oversampling_press; struct bmp180_calib calib; ret = bmp180_read_calib(data, &calib); @@ -660,8 +811,20 @@ static int bmp180_chip_config(struct bmp280_data *data) return 0; } +static const int bmp180_oversampling_temp_avail[] = { 1 }; +static const int bmp180_oversampling_press_avail[] = { 1, 2, 4, 8 }; + static const struct bmp280_chip_info bmp180_chip_info = { .regmap_config = &bmp180_regmap_config, + + .oversampling_temp_avail = bmp180_oversampling_temp_avail, + .num_oversampling_temp_avail = + ARRAY_SIZE(bmp180_oversampling_temp_avail), + + .oversampling_press_avail = bmp180_oversampling_press_avail, + .num_oversampling_press_avail = + ARRAY_SIZE(bmp180_oversampling_press_avail), + .chip_config = bmp180_chip_config, .read_temp = bmp180_read_temp, .read_press = bmp180_read_press, @@ -693,9 +856,13 @@ static int bmp280_probe(struct i2c_client *client, switch (id->driver_data) { case BMP180_CHIP_ID: data->chip_info = &bmp180_chip_info; + data->oversampling_press = ilog2(8); + data->oversampling_temp = ilog2(1); break; case BMP280_CHIP_ID: data->chip_info = &bmp280_chip_info; + data->oversampling_press = ilog2(16); + data->oversampling_temp = ilog2(2); break; default: return -EINVAL; -- cgit v0.10.2 From aadd3076db9d37a593dca1f16b35a87e0bd59005 Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Wed, 20 Apr 2016 16:15:09 +0300 Subject: iio: inv_mpu6050: Cleanup hw_info mapping The hw_info array was indexed by enum inv_devices chip_type despite the fact that the enumeration had more members than the array and was ordered differently. The patch cleans this up and adds explicit chip_types to i2c/spi/acpi IDs. It also adds some stricter checks inside the driver core. This happened to work so far because the differences between the supported models are very minor. Signed-off-by: Crestez Dan Leonard Acked-by: Ge Gao Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index 482a249..ec0ae6f 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -88,16 +88,23 @@ static const struct inv_mpu6050_chip_config chip_config_6050 = { .accl_fs = INV_MPU6050_FS_02G, }; +/* Indexed by enum inv_devices */ static const struct inv_mpu6050_hw hw_info[] = { { .num_reg = 117, + .name = "MPU6050", + .reg = ®_set_6050, + .config = &chip_config_6050, + }, + { + .num_reg = 117, .name = "MPU6500", .reg = ®_set_6500, .config = &chip_config_6050, }, { .num_reg = 117, - .name = "MPU6050", + .name = "MPU6000", .reg = ®_set_6050, .config = &chip_config_6050, }, @@ -793,6 +800,12 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name, if (!indio_dev) return -ENOMEM; + BUILD_BUG_ON(ARRAY_SIZE(hw_info) != INV_NUM_PARTS); + if (chip_type < 0 || chip_type >= INV_NUM_PARTS) { + dev_err(dev, "Bad invensense chip_type=%d name=%s\n", + chip_type, name); + return -ENODEV; + } st = iio_priv(indio_dev); st->chip_type = chip_type; st->powerup_count = 0; diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c index 5ee4e0d..bb1a7b1 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c @@ -208,7 +208,7 @@ static const struct i2c_device_id inv_mpu_id[] = { MODULE_DEVICE_TABLE(i2c, inv_mpu_id); static const struct acpi_device_id inv_acpi_match[] = { - {"INVN6500", 0}, + {"INVN6500", INV_MPU6500}, { }, }; diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c index 7bcb8d8..3972a46 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c @@ -44,9 +44,19 @@ static int inv_mpu_i2c_disable(struct iio_dev *indio_dev) static int inv_mpu_probe(struct spi_device *spi) { struct regmap *regmap; - const struct spi_device_id *id = spi_get_device_id(spi); - const char *name = id ? id->name : NULL; - const int chip_type = id ? id->driver_data : 0; + const struct spi_device_id *spi_id; + const struct acpi_device_id *acpi_id; + const char *name = NULL; + enum inv_devices chip_type; + + if ((spi_id = spi_get_device_id(spi))) { + chip_type = (enum inv_devices)spi_id->driver_data; + name = spi_id->name; + } else if ((acpi_id = acpi_match_device(spi->dev.driver->acpi_match_table, &spi->dev))) { + chip_type = (enum inv_devices)acpi_id->driver_data; + } else { + return -ENODEV; + } regmap = devm_regmap_init_spi(spi, &inv_mpu_regmap_config); if (IS_ERR(regmap)) { @@ -76,7 +86,7 @@ static const struct spi_device_id inv_mpu_id[] = { MODULE_DEVICE_TABLE(spi, inv_mpu_id); static const struct acpi_device_id inv_acpi_match[] = { - {"INVN6000", 0}, + {"INVN6000", INV_MPU6000}, { }, }; MODULE_DEVICE_TABLE(acpi, inv_acpi_match); -- cgit v0.10.2 From 7bdd3181596d3d95ef39849bc3ef8e5b91cb6ae1 Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Wed, 20 Apr 2016 16:15:10 +0300 Subject: iio: inv_mpu6050: Remove inv_mpu6050_hw.num_reg This field was unused and incorrect for mpu6500. Signed-off-by: Crestez Dan Leonard Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index ec0ae6f..84d5b69 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -91,19 +91,16 @@ static const struct inv_mpu6050_chip_config chip_config_6050 = { /* Indexed by enum inv_devices */ static const struct inv_mpu6050_hw hw_info[] = { { - .num_reg = 117, .name = "MPU6050", .reg = ®_set_6050, .config = &chip_config_6050, }, { - .num_reg = 117, .name = "MPU6500", .reg = ®_set_6500, .config = &chip_config_6050, }, { - .num_reg = 117, .name = "MPU6000", .reg = ®_set_6050, .config = &chip_config_6050, diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index 52d60cd..26b6399 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h @@ -93,13 +93,11 @@ struct inv_mpu6050_chip_config { /** * struct inv_mpu6050_hw - Other important hardware information. - * @num_reg: Number of registers on device. * @name: name of the chip. * @reg: register map of the chip. * @config: configuration of the chip. */ struct inv_mpu6050_hw { - u8 num_reg; u8 *name; const struct inv_mpu6050_reg_map *reg; const struct inv_mpu6050_chip_config *config; -- cgit v0.10.2 From cec0154556f8fe6d3a7f5d370f715283888d1c02 Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Wed, 20 Apr 2016 16:15:11 +0300 Subject: iio: inv_mpu6050: Check WHO_AM_I register on probe This can be used to distinguish mpu6500. This is a warning rather than an error because the differences are mostly irrelevant and it's nice to avoid breaking users with slightly incorrect ACPI/DT. Signed-off-by: Crestez Dan Leonard Acked-by: Ge Gao Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index 84d5b69..4152f2f 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -91,16 +91,19 @@ static const struct inv_mpu6050_chip_config chip_config_6050 = { /* Indexed by enum inv_devices */ static const struct inv_mpu6050_hw hw_info[] = { { + .whoami = INV_MPU6050_WHOAMI_VALUE, .name = "MPU6050", .reg = ®_set_6050, .config = &chip_config_6050, }, { + .whoami = INV_MPU6500_WHOAMI_VALUE, .name = "MPU6500", .reg = ®_set_6500, .config = &chip_config_6050, }, { + .whoami = INV_MPU6000_WHOAMI_VALUE, .name = "MPU6000", .reg = ®_set_6050, .config = &chip_config_6050, @@ -749,6 +752,7 @@ static const struct iio_info mpu_info = { static int inv_check_and_setup_chip(struct inv_mpu6050_state *st) { int result; + unsigned int regval; st->hw = &hw_info[st->chip_type]; st->reg = hw_info[st->chip_type].reg; @@ -759,6 +763,17 @@ static int inv_check_and_setup_chip(struct inv_mpu6050_state *st) if (result) return result; msleep(INV_MPU6050_POWER_UP_TIME); + + /* check chip self-identification */ + result = regmap_read(st->map, INV_MPU6050_REG_WHOAMI, ®val); + if (result) + return result; + if (regval != st->hw->whoami) { + dev_warn(regmap_get_device(st->map), + "whoami mismatch got %#02x expected %#02hhx for %s\n", + regval, st->hw->whoami, st->hw->name); + } + /* * toggle power state. After reset, the sleep bit could be on * or off depending on the OTP settings. Toggling power would diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index 26b6399..fb45cc7 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h @@ -93,11 +93,13 @@ struct inv_mpu6050_chip_config { /** * struct inv_mpu6050_hw - Other important hardware information. + * @whoami: Self identification byte from WHO_AM_I register * @name: name of the chip. * @reg: register map of the chip. * @config: configuration of the chip. */ struct inv_mpu6050_hw { + u8 whoami; u8 *name; const struct inv_mpu6050_reg_map *reg; const struct inv_mpu6050_chip_config *config; @@ -215,6 +217,12 @@ struct inv_mpu6050_state { #define INV_MPU6050_MIN_FIFO_RATE 4 #define INV_MPU6050_ONE_K_HZ 1000 +#define INV_MPU6050_REG_WHOAMI 117 + +#define INV_MPU6000_WHOAMI_VALUE 0x68 +#define INV_MPU6050_WHOAMI_VALUE 0x68 +#define INV_MPU6500_WHOAMI_VALUE 0x70 + /* scan element definition */ enum inv_mpu6050_scan { INV_MPU6050_SCAN_ACCL_X, -- cgit v0.10.2 From bf1eb91274157ac521fd6f3712dac8be90bddca7 Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Wed, 20 Apr 2016 16:15:12 +0300 Subject: iio: inv_mpu6050: Add spi_device_id for INV_MPU6500 Signed-off-by: Crestez Dan Leonard Acked-by: Ge Gao Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c index 3972a46..a0f8df2 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c @@ -80,6 +80,7 @@ static int inv_mpu_remove(struct spi_device *spi) */ static const struct spi_device_id inv_mpu_id[] = { {"mpu6000", INV_MPU6000}, + {"mpu6500", INV_MPU6500}, {} }; -- cgit v0.10.2 From fbced0e9465152d628ece5fd0d11de4e7a1f5ce5 Mon Sep 17 00:00:00 2001 From: Crestez Dan Leonard Date: Wed, 20 Apr 2016 16:15:13 +0300 Subject: iio: inv_mpu6050: Add explicit support for MPU9150 This device is a package containing a MPU6050-like sensor and an AK8975 magnetometer. The magnetometer component is supported by the existing ak8975 driver. This patch also rephrases the Kconfig descriptions. Signed-off-by: Crestez Dan Leonard Acked-by: Ge Gao Signed-off-by: Jonathan Cameron diff --git a/drivers/iio/imu/inv_mpu6050/Kconfig b/drivers/iio/imu/inv_mpu6050/Kconfig index a7f557a..c05d474 100644 --- a/drivers/iio/imu/inv_mpu6050/Kconfig +++ b/drivers/iio/imu/inv_mpu6050/Kconfig @@ -14,10 +14,8 @@ config INV_MPU6050_I2C select I2C_MUX select REGMAP_I2C help - This driver supports the Invensense MPU6050 devices. - This driver can also support MPU6500 in MPU6050 compatibility mode - and also in MPU6500 mode with some limitations. - It is a gyroscope/accelerometer combo device. + This driver supports the Invensense MPU6050/6500/9150 motion tracking + devices over I2C. This driver can be built as a module. The module will be called inv-mpu6050-i2c. @@ -27,7 +25,7 @@ config INV_MPU6050_SPI select INV_MPU6050_IIO select REGMAP_SPI help - This driver supports the Invensense MPU6050 devices. - It is a gyroscope/accelerometer combo device. + This driver supports the Invensense MPU6000/6500/9150 motion tracking + devices over SPI. This driver can be built as a module. The module will be called inv-mpu6050-spi. diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index 4152f2f..b269b37 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -108,6 +108,12 @@ static const struct inv_mpu6050_hw hw_info[] = { .reg = ®_set_6050, .config = &chip_config_6050, }, + { + .whoami = INV_MPU9150_WHOAMI_VALUE, + .name = "MPU9150", + .reg = ®_set_6050, + .config = &chip_config_6050, + }, }; int inv_mpu6050_switch_engine(struct inv_mpu6050_state *st, bool en, u32 mask) diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c index bb1a7b1..1a424a6 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c @@ -202,6 +202,7 @@ static int inv_mpu_remove(struct i2c_client *client) static const struct i2c_device_id inv_mpu_id[] = { {"mpu6050", INV_MPU6050}, {"mpu6500", INV_MPU6500}, + {"mpu9150", INV_MPU9150}, {} }; diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index fb45cc7..47ca25b 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h @@ -68,6 +68,7 @@ enum inv_devices { INV_MPU6050, INV_MPU6500, INV_MPU6000, + INV_MPU9150, INV_NUM_PARTS }; @@ -222,6 +223,7 @@ struct inv_mpu6050_state { #define INV_MPU6000_WHOAMI_VALUE 0x68 #define INV_MPU6050_WHOAMI_VALUE 0x68 #define INV_MPU6500_WHOAMI_VALUE 0x70 +#define INV_MPU9150_WHOAMI_VALUE 0x68 /* scan element definition */ enum inv_mpu6050_scan { diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c index a0f8df2..190a4a5 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c @@ -81,6 +81,7 @@ static int inv_mpu_remove(struct spi_device *spi) static const struct spi_device_id inv_mpu_id[] = { {"mpu6000", INV_MPU6000}, {"mpu6500", INV_MPU6500}, + {"mpu9150", INV_MPU9150}, {} }; -- cgit v0.10.2 From ee3b6f1e6de5e93856fce5c87d53e26b078b254c Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 12 Apr 2016 12:16:01 -0400 Subject: staging: lustre: selftest: convert lstcon_test_t to proper struct Turn typedef lstcon_test_t to proper structure Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/conctl.c b/drivers/staging/lustre/lnet/selftest/conctl.c index a76f1c3..408c614 100644 --- a/drivers/staging/lustre/lnet/selftest/conctl.c +++ b/drivers/staging/lustre/lnet/selftest/conctl.c @@ -743,7 +743,7 @@ static int lst_test_add_ioctl(lstio_test_args_t *args) if (args->lstio_tes_param && (args->lstio_tes_param_len <= 0 || args->lstio_tes_param_len > - PAGE_SIZE - sizeof(lstcon_test_t))) + PAGE_SIZE - sizeof(struct lstcon_test))) return -EINVAL; LIBCFS_ALLOC(batch_name, args->lstio_tes_bat_nmlen + 1); diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index 31d7b4f..bc96ef8 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -807,7 +807,7 @@ lstcon_bulkrpc_v1_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req) int lstcon_testrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, - lstcon_test_t *test, struct lstcon_rpc **crpc) + struct lstcon_test *test, struct lstcon_rpc **crpc) { struct lstcon_group *sgrp = test->tes_src_grp; struct lstcon_group *dgrp = test->tes_dst_grp; @@ -1128,7 +1128,8 @@ lstcon_rpc_trans_ndlist(struct list_head *ndlist, case LST_TRANS_TSBCLIADD: case LST_TRANS_TSBSRVADD: rc = lstcon_testrpc_prep(nd, transop, feats, - (lstcon_test_t *)arg, &rpc); + (struct lstcon_test *)arg, + &rpc); break; case LST_TRANS_TSBRUN: case LST_TRANS_TSBSTOP: diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 03c73b0..6568e8e 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -934,7 +934,7 @@ lstcon_batch_info(char *name, lstcon_test_batch_ent_t __user *ent_up, lstcon_test_batch_ent_t *entp; struct list_head *clilst; struct list_head *srvlst; - lstcon_test_t *test = NULL; + struct lstcon_test *test = NULL; struct lstcon_batch *bat; struct lstcon_ndlink *ndl; int rc; @@ -1091,14 +1091,14 @@ static void lstcon_batch_destroy(struct lstcon_batch *bat) { struct lstcon_ndlink *ndl; - lstcon_test_t *test; + struct lstcon_test *test; int i; list_del(&bat->bat_link); while (!list_empty(&bat->bat_test_list)) { test = list_entry(bat->bat_test_list.next, - lstcon_test_t, tes_link); + struct lstcon_test, tes_link); LASSERT(list_empty(&test->tes_trans_list)); list_del(&test->tes_link); @@ -1106,7 +1106,7 @@ lstcon_batch_destroy(struct lstcon_batch *bat) lstcon_group_decref(test->tes_src_grp); lstcon_group_decref(test->tes_dst_grp); - LIBCFS_FREE(test, offsetof(lstcon_test_t, + LIBCFS_FREE(test, offsetof(struct lstcon_test, tes_param[test->tes_paramlen])); } @@ -1143,13 +1143,13 @@ lstcon_batch_destroy(struct lstcon_batch *bat) static int lstcon_testrpc_condition(int transop, struct lstcon_node *nd, void *arg) { - lstcon_test_t *test; + struct lstcon_test *test; struct lstcon_batch *batch; struct lstcon_ndlink *ndl; struct list_head *hash; struct list_head *head; - test = (lstcon_test_t *)arg; + test = (struct lstcon_test *)arg; LASSERT(test); batch = test->tes_batch; @@ -1185,7 +1185,7 @@ lstcon_testrpc_condition(int transop, struct lstcon_node *nd, void *arg) } static int -lstcon_test_nodes_add(lstcon_test_t *test, struct list_head __user *result_up) +lstcon_test_nodes_add(struct lstcon_test *test, struct list_head __user *result_up) { struct lstcon_rpc_trans *trans; struct lstcon_group *grp; @@ -1283,7 +1283,7 @@ lstcon_test_add(char *batch_name, int type, int loop, void *param, int paramlen, int *retp, struct list_head __user *result_up) { - lstcon_test_t *test = NULL; + struct lstcon_test *test = NULL; int rc; struct lstcon_group *src_grp = NULL; struct lstcon_group *dst_grp = NULL; @@ -1309,7 +1309,7 @@ lstcon_test_add(char *batch_name, int type, int loop, if (dst_grp->grp_userland) *retp = 1; - LIBCFS_ALLOC(test, offsetof(lstcon_test_t, tes_param[paramlen])); + LIBCFS_ALLOC(test, offsetof(struct lstcon_test, tes_param[paramlen])); if (!test) { CERROR("Can't allocate test descriptor\n"); rc = -ENOMEM; @@ -1356,7 +1356,7 @@ lstcon_test_add(char *batch_name, int type, int loop, return rc; out: if (test) - LIBCFS_FREE(test, offsetof(lstcon_test_t, tes_param[paramlen])); + LIBCFS_FREE(test, offsetof(struct lstcon_test, tes_param[paramlen])); if (dst_grp) lstcon_group_decref(dst_grp); @@ -1368,9 +1368,9 @@ out: } static int -lstcon_test_find(struct lstcon_batch *batch, int idx, lstcon_test_t **testpp) +lstcon_test_find(struct lstcon_batch *batch, int idx, struct lstcon_test **testpp) { - lstcon_test_t *test; + struct lstcon_test *test; list_for_each_entry(test, &batch->bat_test_list, tes_link) { if (idx == test->tes_hdr.tsb_index) { @@ -1408,7 +1408,7 @@ lstcon_test_batch_query(char *name, int testidx, int client, struct list_head *ndlist; struct lstcon_tsb_hdr *hdr; struct lstcon_batch *batch; - lstcon_test_t *test = NULL; + struct lstcon_test *test = NULL; int transop; int rc; diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h index ccd4982..becd22e 100644 --- a/drivers/staging/lustre/lnet/selftest/console.h +++ b/drivers/staging/lustre/lnet/selftest/console.h @@ -99,7 +99,7 @@ struct lstcon_batch { * for run, force for stop */ char bat_name[LST_NAME_SIZE];/* name of batch */ - struct list_head bat_test_list; /* list head of tests (lstcon_test_t) + struct list_head bat_test_list; /* list head of tests (struct lstcon_test) */ struct list_head bat_trans_list; /* list head of transaction */ struct list_head bat_cli_list; /* list head of client nodes @@ -109,7 +109,8 @@ struct lstcon_batch { struct list_head *bat_srv_hash; /* hash table of server nodes */ }; -typedef struct lstcon_test { +/* a single test descriptor */ +struct lstcon_test { struct lstcon_tsb_hdr tes_hdr; /* test batch header */ struct list_head tes_link; /* chain on batch's tests list */ struct lstcon_batch *tes_batch; /* pointer to batch */ @@ -129,7 +130,7 @@ typedef struct lstcon_test { int tes_paramlen; /* test parameter length */ char tes_param[0]; /* test parameter */ -} lstcon_test_t; /* a single test descriptor */ +}; #define LST_GLOBAL_HASHSIZE 503 /* global nodes hash table size */ #define LST_NODE_HASHSIZE 239 /* node hash table (for batch or group) */ -- cgit v0.10.2 From 45d2f4fb5a19d4aa5d7d81796081aa6cba9e4e70 Mon Sep 17 00:00:00 2001 From: James Simmons Date: Tue, 12 Apr 2016 12:16:02 -0400 Subject: staging: lustre: selftest: convert wire protocol to use struct Change all the wire protocol typedefs to proper structures Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c index 7f539f9..a63d86c 100644 --- a/drivers/staging/lustre/lnet/selftest/brw_test.c +++ b/drivers/staging/lustre/lnet/selftest/brw_test.c @@ -81,7 +81,7 @@ brw_client_init(struct sfw_test_instance *tsi) LASSERT(tsi->tsi_is_client); if (!(sn->sn_features & LST_FEAT_BULK_LEN)) { - test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0; + struct test_bulk_req *breq = &tsi->tsi_u.bulk_v0; opc = breq->blk_opc; flags = breq->blk_flags; @@ -92,7 +92,7 @@ brw_client_init(struct sfw_test_instance *tsi) */ len = npg * PAGE_SIZE; } else { - test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1; + struct test_bulk_req_v1 *breq = &tsi->tsi_u.bulk_v1; /* * I should never get this step if it's unknown feature @@ -261,7 +261,7 @@ brw_client_prep_rpc(struct sfw_test_unit *tsu, struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_session *sn = tsi->tsi_batch->bat_session; struct srpc_client_rpc *rpc; - srpc_brw_reqst_t *req; + struct srpc_brw_reqst *req; int flags; int npg; int len; @@ -272,14 +272,14 @@ brw_client_prep_rpc(struct sfw_test_unit *tsu, LASSERT(bulk); if (!(sn->sn_features & LST_FEAT_BULK_LEN)) { - test_bulk_req_t *breq = &tsi->tsi_u.bulk_v0; + struct test_bulk_req *breq = &tsi->tsi_u.bulk_v0; opc = breq->blk_opc; flags = breq->blk_flags; npg = breq->blk_npg; len = npg * PAGE_SIZE; } else { - test_bulk_req_v1_t *breq = &tsi->tsi_u.bulk_v1; + struct test_bulk_req_v1 *breq = &tsi->tsi_u.bulk_v1; /* * I should never get this step if it's unknown feature @@ -319,8 +319,8 @@ brw_client_done_rpc(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc) struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_session *sn = tsi->tsi_batch->bat_session; struct srpc_msg *msg = &rpc->crpc_replymsg; - srpc_brw_reply_t *reply = &msg->msg_body.brw_reply; - srpc_brw_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst; + struct srpc_brw_reply *reply = &msg->msg_body.brw_reply; + struct srpc_brw_reqst *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst; LASSERT(sn); @@ -382,8 +382,8 @@ static int brw_bulk_ready(struct srpc_server_rpc *rpc, int status) { __u64 magic = BRW_MAGIC; - srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply; - srpc_brw_reqst_t *reqst; + struct srpc_brw_reply *reply = &rpc->srpc_replymsg.msg_body.brw_reply; + struct srpc_brw_reqst *reqst; struct srpc_msg *reqstmsg; LASSERT(rpc->srpc_bulk); @@ -420,8 +420,8 @@ brw_server_handle(struct srpc_server_rpc *rpc) struct srpc_service *sv = rpc->srpc_scd->scd_svc; struct srpc_msg *replymsg = &rpc->srpc_replymsg; struct srpc_msg *reqstmsg = &rpc->srpc_reqstbuf->buf_msg; - srpc_brw_reply_t *reply = &replymsg->msg_body.brw_reply; - srpc_brw_reqst_t *reqst = &reqstmsg->msg_body.brw_reqst; + struct srpc_brw_reply *reply = &replymsg->msg_body.brw_reply; + struct srpc_brw_reqst *reqst = &reqstmsg->msg_body.brw_reqst; int npg; int rc; diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index bc96ef8..6f68758 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -390,7 +390,7 @@ lstcon_rpc_get_reply(struct lstcon_rpc *crpc, struct srpc_msg **msgpp) { struct lstcon_node *nd = crpc->crp_node; struct srpc_client_rpc *rpc = crpc->crp_rpc; - srpc_generic_reply_t *rep; + struct srpc_generic_reply *rep; LASSERT(nd && rpc); LASSERT(crpc->crp_stamp); @@ -473,7 +473,7 @@ lstcon_rpc_trans_interpreter(struct lstcon_rpc_trans *trans, struct list_head tmp; struct list_head __user *next; lstcon_rpc_ent_t *ent; - srpc_generic_reply_t *rep; + struct srpc_generic_reply *rep; struct lstcon_rpc *crpc; struct srpc_msg *msg; struct lstcon_node *nd; @@ -520,7 +520,7 @@ lstcon_rpc_trans_interpreter(struct lstcon_rpc_trans *trans, continue; /* RPC is done */ - rep = (srpc_generic_reply_t *)&msg->msg_body.reply; + rep = (struct srpc_generic_reply *)&msg->msg_body.reply; if (copy_to_user(&ent->rpe_sid, &rep->sid, sizeof(lst_sid_t)) || copy_to_user(&ent->rpe_fwk_errno, &rep->status, @@ -595,8 +595,8 @@ int lstcon_sesrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, struct lstcon_rpc **crpc) { - srpc_mksn_reqst_t *msrq; - srpc_rmsn_reqst_t *rsrq; + struct srpc_mksn_reqst *msrq; + struct srpc_rmsn_reqst *rsrq; int rc; switch (transop) { @@ -633,7 +633,7 @@ lstcon_sesrpc_prep(struct lstcon_node *nd, int transop, int lstcon_dbgrpc_prep(struct lstcon_node *nd, unsigned feats, struct lstcon_rpc **crpc) { - srpc_debug_reqst_t *drq; + struct srpc_debug_reqst *drq; int rc; rc = lstcon_rpc_prep(nd, SRPC_SERVICE_DEBUG, feats, 0, 0, crpc); @@ -653,7 +653,7 @@ lstcon_batrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, struct lstcon_tsb_hdr *tsb, struct lstcon_rpc **crpc) { struct lstcon_batch *batch; - srpc_batch_reqst_t *brq; + struct srpc_batch_reqst *brq; int rc; rc = lstcon_rpc_prep(nd, SRPC_SERVICE_BATCH, feats, 0, 0, crpc); @@ -684,7 +684,7 @@ lstcon_batrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, int lstcon_statrpc_prep(struct lstcon_node *nd, unsigned feats, struct lstcon_rpc **crpc) { - srpc_stat_reqst_t *srq; + struct srpc_stat_reqst *srq; int rc; rc = lstcon_rpc_prep(nd, SRPC_SERVICE_QUERY_STAT, feats, 0, 0, crpc); @@ -769,9 +769,9 @@ lstcon_dstnodes_prep(struct lstcon_group *grp, int idx, } static int -lstcon_pingrpc_prep(lst_test_ping_param_t *param, srpc_test_reqst_t *req) +lstcon_pingrpc_prep(lst_test_ping_param_t *param, struct srpc_test_reqst *req) { - test_ping_req_t *prq = &req->tsr_u.ping; + struct test_ping_req *prq = &req->tsr_u.ping; prq->png_size = param->png_size; prq->png_flags = param->png_flags; @@ -780,9 +780,9 @@ lstcon_pingrpc_prep(lst_test_ping_param_t *param, srpc_test_reqst_t *req) } static int -lstcon_bulkrpc_v0_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req) +lstcon_bulkrpc_v0_prep(lst_test_bulk_param_t *param, struct srpc_test_reqst *req) { - test_bulk_req_t *brq = &req->tsr_u.bulk_v0; + struct test_bulk_req *brq = &req->tsr_u.bulk_v0; brq->blk_opc = param->blk_opc; brq->blk_npg = (param->blk_size + PAGE_SIZE - 1) / @@ -793,9 +793,9 @@ lstcon_bulkrpc_v0_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req) } static int -lstcon_bulkrpc_v1_prep(lst_test_bulk_param_t *param, srpc_test_reqst_t *req) +lstcon_bulkrpc_v1_prep(lst_test_bulk_param_t *param, struct srpc_test_reqst *req) { - test_bulk_req_v1_t *brq = &req->tsr_u.bulk_v1; + struct test_bulk_req_v1 *brq = &req->tsr_u.bulk_v1; brq->blk_opc = param->blk_opc; brq->blk_flags = param->blk_flags; @@ -811,7 +811,7 @@ lstcon_testrpc_prep(struct lstcon_node *nd, int transop, unsigned feats, { struct lstcon_group *sgrp = test->tes_src_grp; struct lstcon_group *dgrp = test->tes_dst_grp; - srpc_test_reqst_t *trq; + struct srpc_test_reqst *trq; struct srpc_bulk *bulk; int i; int npg = 0; @@ -918,7 +918,7 @@ static int lstcon_sesnew_stat_reply(struct lstcon_rpc_trans *trans, struct lstcon_node *nd, struct srpc_msg *reply) { - srpc_mksn_reply_t *mksn_rep = &reply->msg_body.mksn_reply; + struct srpc_mksn_reply *mksn_rep = &reply->msg_body.mksn_reply; int status = mksn_rep->mksn_status; if (!status && @@ -965,11 +965,11 @@ void lstcon_rpc_stat_reply(struct lstcon_rpc_trans *trans, struct srpc_msg *msg, struct lstcon_node *nd, lstcon_trans_stat_t *stat) { - srpc_rmsn_reply_t *rmsn_rep; - srpc_debug_reply_t *dbg_rep; - srpc_batch_reply_t *bat_rep; - srpc_test_reply_t *test_rep; - srpc_stat_reply_t *stat_rep; + struct srpc_rmsn_reply *rmsn_rep; + struct srpc_debug_reply *dbg_rep; + struct srpc_batch_reply *bat_rep; + struct srpc_test_reply *test_rep; + struct srpc_stat_reply *stat_rep; int rc = 0; switch (trans->tas_opc) { @@ -1173,7 +1173,7 @@ lstcon_rpc_pinger(void *arg) struct lstcon_rpc_trans *trans; struct lstcon_rpc *crpc; struct srpc_msg *rep; - srpc_debug_reqst_t *drq; + struct srpc_debug_reqst *drq; struct lstcon_ndlink *ndl; struct lstcon_node *nd; int intv; diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index 6568e8e..a03e52d 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -373,7 +373,7 @@ static int lstcon_sesrpc_readent(int transop, struct srpc_msg *msg, lstcon_rpc_ent_t __user *ent_up) { - srpc_debug_reply_t *rep; + struct srpc_debug_reply *rep; switch (transop) { case LST_TRANS_SESNEW: @@ -1386,7 +1386,7 @@ static int lstcon_tsbrpc_readent(int transop, struct srpc_msg *msg, lstcon_rpc_ent_t __user *ent_up) { - srpc_batch_reply_t *rep = &msg->msg_body.bat_reply; + struct srpc_batch_reply *rep = &msg->msg_body.bat_reply; LASSERT(transop == LST_TRANS_TSBCLIQRY || transop == LST_TRANS_TSBSRVQRY); @@ -1465,7 +1465,7 @@ static int lstcon_statrpc_readent(int transop, struct srpc_msg *msg, lstcon_rpc_ent_t __user *ent_up) { - srpc_stat_reply_t *rep = &msg->msg_body.stat_reply; + struct srpc_stat_reply *rep = &msg->msg_body.stat_reply; sfw_counters_t __user *sfwk_stat; srpc_counters_t __user *srpc_stat; lnet_counters_t __user *lnet_stat; @@ -1907,8 +1907,8 @@ lstcon_acceptor_handle(struct srpc_server_rpc *rpc) { struct srpc_msg *rep = &rpc->srpc_replymsg; struct srpc_msg *req = &rpc->srpc_reqstbuf->buf_msg; - srpc_join_reqst_t *jreq = &req->msg_body.join_reqst; - srpc_join_reply_t *jrep = &rep->msg_body.join_reply; + struct srpc_join_reqst *jreq = &req->msg_body.join_reqst; + struct srpc_join_reply *jrep = &rep->msg_body.join_reply; struct lstcon_group *grp = NULL; struct lstcon_ndlink *ndl; int rc = 0; diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index ef3cc82..30e4f71 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -361,7 +361,7 @@ sfw_bid2batch(lst_bid_t bid) } static int -sfw_get_stats(srpc_stat_reqst_t *request, srpc_stat_reply_t *reply) +sfw_get_stats(struct srpc_stat_reqst *request, struct srpc_stat_reply *reply) { struct sfw_session *sn = sfw_data.fw_session; sfw_counters_t *cnt = &reply->str_fw; @@ -402,7 +402,7 @@ sfw_get_stats(srpc_stat_reqst_t *request, srpc_stat_reply_t *reply) } int -sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply) +sfw_make_session(struct srpc_mksn_reqst *request, struct srpc_mksn_reply *reply) { struct sfw_session *sn = sfw_data.fw_session; struct srpc_msg *msg = container_of(request, struct srpc_msg, @@ -473,7 +473,7 @@ sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply) } static int -sfw_remove_session(srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply) +sfw_remove_session(struct srpc_rmsn_reqst *request, struct srpc_rmsn_reply *reply) { struct sfw_session *sn = sfw_data.fw_session; @@ -505,7 +505,7 @@ sfw_remove_session(srpc_rmsn_reqst_t *request, srpc_rmsn_reply_t *reply) } static int -sfw_debug_session(srpc_debug_reqst_t *request, srpc_debug_reply_t *reply) +sfw_debug_session(struct srpc_debug_reqst *request, struct srpc_debug_reply *reply) { struct sfw_session *sn = sfw_data.fw_session; @@ -687,7 +687,7 @@ sfw_destroy_session(struct sfw_session *sn) static void sfw_unpack_addtest_req(struct srpc_msg *msg) { - srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; + struct srpc_test_reqst *req = &msg->msg_body.tes_reqst; LASSERT(msg->msg_type == SRPC_MSG_TEST_REQST); LASSERT(req->tsr_is_client); @@ -699,14 +699,14 @@ sfw_unpack_addtest_req(struct srpc_msg *msg) if (req->tsr_service == SRPC_SERVICE_BRW) { if (!(msg->msg_ses_feats & LST_FEAT_BULK_LEN)) { - test_bulk_req_t *bulk = &req->tsr_u.bulk_v0; + struct test_bulk_req *bulk = &req->tsr_u.bulk_v0; __swab32s(&bulk->blk_opc); __swab32s(&bulk->blk_npg); __swab32s(&bulk->blk_flags); } else { - test_bulk_req_v1_t *bulk = &req->tsr_u.bulk_v1; + struct test_bulk_req_v1 *bulk = &req->tsr_u.bulk_v1; __swab16s(&bulk->blk_opc); __swab16s(&bulk->blk_flags); @@ -718,7 +718,7 @@ sfw_unpack_addtest_req(struct srpc_msg *msg) } if (req->tsr_service == SRPC_SERVICE_PING) { - test_ping_req_t *ping = &req->tsr_u.ping; + struct test_ping_req *ping = &req->tsr_u.ping; __swab32s(&ping->png_size); __swab32s(&ping->png_flags); @@ -732,7 +732,7 @@ static int sfw_add_test_instance(struct sfw_batch *tsb, struct srpc_server_rpc *rpc) { struct srpc_msg *msg = &rpc->srpc_reqstbuf->buf_msg; - srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; + struct srpc_test_reqst *req = &msg->msg_body.tes_reqst; struct srpc_bulk *bk = rpc->srpc_bulk; int ndest = req->tsr_ndest; struct sfw_test_unit *tsu; @@ -1068,7 +1068,7 @@ sfw_stop_batch(struct sfw_batch *tsb, int force) } static int -sfw_query_batch(struct sfw_batch *tsb, int testidx, srpc_batch_reply_t *reply) +sfw_query_batch(struct sfw_batch *tsb, int testidx, struct srpc_batch_reply *reply) { struct sfw_test_instance *tsi; @@ -1116,8 +1116,8 @@ static int sfw_add_test(struct srpc_server_rpc *rpc) { struct sfw_session *sn = sfw_data.fw_session; - srpc_test_reply_t *reply = &rpc->srpc_replymsg.msg_body.tes_reply; - srpc_test_reqst_t *request; + struct srpc_test_reply *reply = &rpc->srpc_replymsg.msg_body.tes_reply; + struct srpc_test_reqst *request; int rc; struct sfw_batch *bat; @@ -1183,7 +1183,7 @@ sfw_add_test(struct srpc_server_rpc *rpc) } static int -sfw_control_batch(srpc_batch_reqst_t *request, srpc_batch_reply_t *reply) +sfw_control_batch(struct srpc_batch_reqst *request, struct srpc_batch_reply *reply) { struct sfw_session *sn = sfw_data.fw_session; int rc = 0; @@ -1424,7 +1424,7 @@ sfw_unpack_message(struct srpc_msg *msg) LASSERT(msg->msg_magic == __swab32(SRPC_MSG_MAGIC)); if (msg->msg_type == SRPC_MSG_STAT_REQST) { - srpc_stat_reqst_t *req = &msg->msg_body.stat_reqst; + struct srpc_stat_reqst *req = &msg->msg_body.stat_reqst; __swab32s(&req->str_type); __swab64s(&req->str_rpyid); @@ -1433,7 +1433,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_STAT_REPLY) { - srpc_stat_reply_t *rep = &msg->msg_body.stat_reply; + struct srpc_stat_reply *rep = &msg->msg_body.stat_reply; __swab32s(&rep->str_status); sfw_unpack_sid(rep->str_sid); @@ -1444,7 +1444,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_MKSN_REQST) { - srpc_mksn_reqst_t *req = &msg->msg_body.mksn_reqst; + struct srpc_mksn_reqst *req = &msg->msg_body.mksn_reqst; __swab64s(&req->mksn_rpyid); __swab32s(&req->mksn_force); @@ -1453,7 +1453,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_MKSN_REPLY) { - srpc_mksn_reply_t *rep = &msg->msg_body.mksn_reply; + struct srpc_mksn_reply *rep = &msg->msg_body.mksn_reply; __swab32s(&rep->mksn_status); __swab32s(&rep->mksn_timeout); @@ -1462,7 +1462,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_RMSN_REQST) { - srpc_rmsn_reqst_t *req = &msg->msg_body.rmsn_reqst; + struct srpc_rmsn_reqst *req = &msg->msg_body.rmsn_reqst; __swab64s(&req->rmsn_rpyid); sfw_unpack_sid(req->rmsn_sid); @@ -1470,7 +1470,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_RMSN_REPLY) { - srpc_rmsn_reply_t *rep = &msg->msg_body.rmsn_reply; + struct srpc_rmsn_reply *rep = &msg->msg_body.rmsn_reply; __swab32s(&rep->rmsn_status); sfw_unpack_sid(rep->rmsn_sid); @@ -1478,7 +1478,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_DEBUG_REQST) { - srpc_debug_reqst_t *req = &msg->msg_body.dbg_reqst; + struct srpc_debug_reqst *req = &msg->msg_body.dbg_reqst; __swab64s(&req->dbg_rpyid); __swab32s(&req->dbg_flags); @@ -1487,7 +1487,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_DEBUG_REPLY) { - srpc_debug_reply_t *rep = &msg->msg_body.dbg_reply; + struct srpc_debug_reply *rep = &msg->msg_body.dbg_reply; __swab32s(&rep->dbg_nbatch); __swab32s(&rep->dbg_timeout); @@ -1496,7 +1496,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_BATCH_REQST) { - srpc_batch_reqst_t *req = &msg->msg_body.bat_reqst; + struct srpc_batch_reqst *req = &msg->msg_body.bat_reqst; __swab32s(&req->bar_opc); __swab64s(&req->bar_rpyid); @@ -1508,7 +1508,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_BATCH_REPLY) { - srpc_batch_reply_t *rep = &msg->msg_body.bat_reply; + struct srpc_batch_reply *rep = &msg->msg_body.bat_reply; __swab32s(&rep->bar_status); sfw_unpack_sid(rep->bar_sid); @@ -1516,7 +1516,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_TEST_REQST) { - srpc_test_reqst_t *req = &msg->msg_body.tes_reqst; + struct srpc_test_reqst *req = &msg->msg_body.tes_reqst; __swab64s(&req->tsr_rpyid); __swab64s(&req->tsr_bulkid); @@ -1530,7 +1530,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_TEST_REPLY) { - srpc_test_reply_t *rep = &msg->msg_body.tes_reply; + struct srpc_test_reply *rep = &msg->msg_body.tes_reply; __swab32s(&rep->tsr_status); sfw_unpack_sid(rep->tsr_sid); @@ -1538,7 +1538,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_JOIN_REQST) { - srpc_join_reqst_t *req = &msg->msg_body.join_reqst; + struct srpc_join_reqst *req = &msg->msg_body.join_reqst; __swab64s(&req->join_rpyid); sfw_unpack_sid(req->join_sid); @@ -1546,7 +1546,7 @@ sfw_unpack_message(struct srpc_msg *msg) } if (msg->msg_type == SRPC_MSG_JOIN_REPLY) { - srpc_join_reply_t *rep = &msg->msg_body.join_reply; + struct srpc_join_reply *rep = &msg->msg_body.join_reply; __swab32s(&rep->join_status); __swab32s(&rep->join_timeout); diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c index 8a9d7a4..ad26fe9 100644 --- a/drivers/staging/lustre/lnet/selftest/ping_test.c +++ b/drivers/staging/lustre/lnet/selftest/ping_test.c @@ -89,7 +89,7 @@ static int ping_client_prep_rpc(struct sfw_test_unit *tsu, lnet_process_id_t dest, struct srpc_client_rpc **rpc) { - srpc_ping_reqst_t *req; + struct srpc_ping_reqst *req; struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_session *sn = tsi->tsi_batch->bat_session; struct timespec64 ts; @@ -122,8 +122,8 @@ ping_client_done_rpc(struct sfw_test_unit *tsu, struct srpc_client_rpc *rpc) { struct sfw_test_instance *tsi = tsu->tsu_instance; struct sfw_session *sn = tsi->tsi_batch->bat_session; - srpc_ping_reqst_t *reqst = &rpc->crpc_reqstmsg.msg_body.ping_reqst; - srpc_ping_reply_t *reply = &rpc->crpc_replymsg.msg_body.ping_reply; + struct srpc_ping_reqst *reqst = &rpc->crpc_reqstmsg.msg_body.ping_reqst; + struct srpc_ping_reply *reply = &rpc->crpc_replymsg.msg_body.ping_reply; struct timespec64 ts; LASSERT(sn); @@ -173,8 +173,8 @@ ping_server_handle(struct srpc_server_rpc *rpc) struct srpc_service *sv = rpc->srpc_scd->scd_svc; struct srpc_msg *reqstmsg = &rpc->srpc_reqstbuf->buf_msg; struct srpc_msg *replymsg = &rpc->srpc_replymsg; - srpc_ping_reqst_t *req = &reqstmsg->msg_body.ping_reqst; - srpc_ping_reply_t *rep = &rpc->srpc_replymsg.msg_body.ping_reply; + struct srpc_ping_reqst *req = &reqstmsg->msg_body.ping_reqst; + struct srpc_ping_reply *rep = &rpc->srpc_replymsg.msg_body.ping_reply; LASSERT(sv->sv_id == SRPC_SERVICE_PING); diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index 561e28c..3c45a7c 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -997,7 +997,7 @@ srpc_handle_rpc(struct swi_workitem *wi) LBUG(); case SWI_STATE_NEWBORN: { struct srpc_msg *msg; - srpc_generic_reply_t *reply; + struct srpc_generic_reply *reply; msg = &rpc->srpc_reqstbuf->buf_msg; reply = &rpc->srpc_replymsg.msg_body.reply; @@ -1238,7 +1238,7 @@ srpc_send_rpc(struct swi_workitem *wi) wi->swi_state = SWI_STATE_REQUEST_SENT; /* perhaps more events, fall thru */ case SWI_STATE_REQUEST_SENT: { - srpc_msg_type_t type = srpc_service2reply(rpc->crpc_service); + enum srpc_msg_type type = srpc_service2reply(rpc->crpc_service); if (!rpc->crpc_replyev.ev_fired) break; @@ -1417,7 +1417,7 @@ srpc_lnet_ev_handler(lnet_event_t *ev) struct srpc_buffer *buffer; struct srpc_service *sv; struct srpc_msg *msg; - srpc_msg_type_t type; + enum srpc_msg_type type; LASSERT(!in_interrupt()); diff --git a/drivers/staging/lustre/lnet/selftest/rpc.h b/drivers/staging/lustre/lnet/selftest/rpc.h index fdf881f..c9b904c 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.h +++ b/drivers/staging/lustre/lnet/selftest/rpc.h @@ -44,7 +44,7 @@ * * XXX: *REPLY == *REQST + 1 */ -typedef enum { +enum srpc_msg_type { SRPC_MSG_MKSN_REQST = 0, SRPC_MSG_MKSN_REPLY = 1, SRPC_MSG_RMSN_REQST = 2, @@ -63,7 +63,7 @@ typedef enum { SRPC_MSG_PING_REPLY = 15, SRPC_MSG_JOIN_REQST = 16, SRPC_MSG_JOIN_REPLY = 17, -} srpc_msg_type_t; +}; /* CAVEAT EMPTOR: * All srpc_*_reqst_t's 1st field must be matchbits of reply buffer, @@ -72,122 +72,122 @@ typedef enum { * All srpc_*_reply_t's 1st field must be a __u32 status, and 2nd field * session id if needed. */ -typedef struct { +struct srpc_generic_reqst { __u64 rpyid; /* reply buffer matchbits */ __u64 bulkid; /* bulk buffer matchbits */ -} WIRE_ATTR srpc_generic_reqst_t; +} WIRE_ATTR; -typedef struct { +struct srpc_generic_reply { __u32 status; lst_sid_t sid; -} WIRE_ATTR srpc_generic_reply_t; +} WIRE_ATTR; /* FRAMEWORK RPCs */ -typedef struct { +struct srpc_mksn_reqst { __u64 mksn_rpyid; /* reply buffer matchbits */ lst_sid_t mksn_sid; /* session id */ __u32 mksn_force; /* use brute force */ char mksn_name[LST_NAME_SIZE]; -} WIRE_ATTR srpc_mksn_reqst_t; /* make session request */ +} WIRE_ATTR; /* make session request */ -typedef struct { +struct srpc_mksn_reply { __u32 mksn_status; /* session status */ lst_sid_t mksn_sid; /* session id */ __u32 mksn_timeout; /* session timeout */ char mksn_name[LST_NAME_SIZE]; -} WIRE_ATTR srpc_mksn_reply_t; /* make session reply */ +} WIRE_ATTR; /* make session reply */ -typedef struct { +struct srpc_rmsn_reqst { __u64 rmsn_rpyid; /* reply buffer matchbits */ lst_sid_t rmsn_sid; /* session id */ -} WIRE_ATTR srpc_rmsn_reqst_t; /* remove session request */ +} WIRE_ATTR; /* remove session request */ -typedef struct { +struct srpc_rmsn_reply { __u32 rmsn_status; lst_sid_t rmsn_sid; /* session id */ -} WIRE_ATTR srpc_rmsn_reply_t; /* remove session reply */ +} WIRE_ATTR; /* remove session reply */ -typedef struct { +struct srpc_join_reqst { __u64 join_rpyid; /* reply buffer matchbits */ lst_sid_t join_sid; /* session id to join */ char join_group[LST_NAME_SIZE]; /* group name */ -} WIRE_ATTR srpc_join_reqst_t; +} WIRE_ATTR; -typedef struct { +struct srpc_join_reply { __u32 join_status; /* returned status */ lst_sid_t join_sid; /* session id */ __u32 join_timeout; /* # seconds' inactivity to * expire */ char join_session[LST_NAME_SIZE]; /* session name */ -} WIRE_ATTR srpc_join_reply_t; +} WIRE_ATTR; -typedef struct { +struct srpc_debug_reqst { __u64 dbg_rpyid; /* reply buffer matchbits */ lst_sid_t dbg_sid; /* session id */ __u32 dbg_flags; /* bitmap of debug */ -} WIRE_ATTR srpc_debug_reqst_t; +} WIRE_ATTR; -typedef struct { +struct srpc_debug_reply { __u32 dbg_status; /* returned code */ lst_sid_t dbg_sid; /* session id */ __u32 dbg_timeout; /* session timeout */ __u32 dbg_nbatch; /* # of batches in the node */ char dbg_name[LST_NAME_SIZE]; /* session name */ -} WIRE_ATTR srpc_debug_reply_t; +} WIRE_ATTR; #define SRPC_BATCH_OPC_RUN 1 #define SRPC_BATCH_OPC_STOP 2 #define SRPC_BATCH_OPC_QUERY 3 -typedef struct { +struct srpc_batch_reqst { __u64 bar_rpyid; /* reply buffer matchbits */ lst_sid_t bar_sid; /* session id */ lst_bid_t bar_bid; /* batch id */ __u32 bar_opc; /* create/start/stop batch */ __u32 bar_testidx; /* index of test */ __u32 bar_arg; /* parameters */ -} WIRE_ATTR srpc_batch_reqst_t; +} WIRE_ATTR; -typedef struct { +struct srpc_batch_reply { __u32 bar_status; /* status of request */ lst_sid_t bar_sid; /* session id */ __u32 bar_active; /* # of active tests in batch/test */ __u32 bar_time; /* remained time */ -} WIRE_ATTR srpc_batch_reply_t; +} WIRE_ATTR; -typedef struct { +struct srpc_stat_reqst { __u64 str_rpyid; /* reply buffer matchbits */ lst_sid_t str_sid; /* session id */ __u32 str_type; /* type of stat */ -} WIRE_ATTR srpc_stat_reqst_t; +} WIRE_ATTR; -typedef struct { +struct srpc_stat_reply { __u32 str_status; lst_sid_t str_sid; sfw_counters_t str_fw; srpc_counters_t str_rpc; lnet_counters_t str_lnet; -} WIRE_ATTR srpc_stat_reply_t; +} WIRE_ATTR; -typedef struct { +struct test_bulk_req { __u32 blk_opc; /* bulk operation code */ __u32 blk_npg; /* # of pages */ __u32 blk_flags; /* reserved flags */ -} WIRE_ATTR test_bulk_req_t; +} WIRE_ATTR; -typedef struct { +struct test_bulk_req_v1 { __u16 blk_opc; /* bulk operation code */ __u16 blk_flags; /* data check flags */ __u32 blk_len; /* data length */ __u32 blk_offset; /* reserved: offset */ -} WIRE_ATTR test_bulk_req_v1_t; +} WIRE_ATTR; -typedef struct { +struct test_ping_req { __u32 png_size; /* size of ping message */ __u32 png_flags; /* reserved flags */ -} WIRE_ATTR test_ping_req_t; +} WIRE_ATTR; -typedef struct { +struct srpc_test_reqst { __u64 tsr_rpyid; /* reply buffer matchbits */ __u64 tsr_bulkid; /* bulk buffer matchbits */ lst_sid_t tsr_sid; /* session id */ @@ -201,43 +201,43 @@ typedef struct { __u32 tsr_ndest; /* # of dest nodes */ union { - test_ping_req_t ping; - test_bulk_req_t bulk_v0; - test_bulk_req_v1_t bulk_v1; - } tsr_u; -} WIRE_ATTR srpc_test_reqst_t; + struct test_ping_req ping; + struct test_bulk_req bulk_v0; + struct test_bulk_req_v1 bulk_v1; + } tsr_u; +} WIRE_ATTR; -typedef struct { +struct srpc_test_reply { __u32 tsr_status; /* returned code */ lst_sid_t tsr_sid; -} WIRE_ATTR srpc_test_reply_t; +} WIRE_ATTR; /* TEST RPCs */ -typedef struct { +struct srpc_ping_reqst { __u64 pnr_rpyid; __u32 pnr_magic; __u32 pnr_seq; __u64 pnr_time_sec; __u64 pnr_time_usec; -} WIRE_ATTR srpc_ping_reqst_t; +} WIRE_ATTR; -typedef struct { +struct srpc_ping_reply { __u32 pnr_status; __u32 pnr_magic; __u32 pnr_seq; -} WIRE_ATTR srpc_ping_reply_t; +} WIRE_ATTR; -typedef struct { +struct srpc_brw_reqst { __u64 brw_rpyid; /* reply buffer matchbits */ __u64 brw_bulkid; /* bulk buffer matchbits */ __u32 brw_rw; /* read or write */ __u32 brw_len; /* bulk data len */ __u32 brw_flags; /* bulk data patterns */ -} WIRE_ATTR srpc_brw_reqst_t; /* bulk r/w request */ +} WIRE_ATTR; /* bulk r/w request */ -typedef struct { +struct srpc_brw_reply { __u32 brw_status; -} WIRE_ATTR srpc_brw_reply_t; /* bulk r/w reply */ +} WIRE_ATTR; /* bulk r/w reply */ #define SRPC_MSG_MAGIC 0xeeb0f00d #define SRPC_MSG_VERSION 1 @@ -245,33 +245,33 @@ typedef struct { struct srpc_msg { __u32 msg_magic; /* magic number */ __u32 msg_version; /* message version number */ - __u32 msg_type; /* type of message body: srpc_msg_type_t */ + __u32 msg_type; /* type of message body: srpc_msg_type */ __u32 msg_reserved0; __u32 msg_reserved1; __u32 msg_ses_feats; /* test session features */ union { - srpc_generic_reqst_t reqst; - srpc_generic_reply_t reply; - - srpc_mksn_reqst_t mksn_reqst; - srpc_mksn_reply_t mksn_reply; - srpc_rmsn_reqst_t rmsn_reqst; - srpc_rmsn_reply_t rmsn_reply; - srpc_debug_reqst_t dbg_reqst; - srpc_debug_reply_t dbg_reply; - srpc_batch_reqst_t bat_reqst; - srpc_batch_reply_t bat_reply; - srpc_stat_reqst_t stat_reqst; - srpc_stat_reply_t stat_reply; - srpc_test_reqst_t tes_reqst; - srpc_test_reply_t tes_reply; - srpc_join_reqst_t join_reqst; - srpc_join_reply_t join_reply; - - srpc_ping_reqst_t ping_reqst; - srpc_ping_reply_t ping_reply; - srpc_brw_reqst_t brw_reqst; - srpc_brw_reply_t brw_reply; + struct srpc_generic_reqst reqst; + struct srpc_generic_reply reply; + + struct srpc_mksn_reqst mksn_reqst; + struct srpc_mksn_reply mksn_reply; + struct srpc_rmsn_reqst rmsn_reqst; + struct srpc_rmsn_reply rmsn_reply; + struct srpc_debug_reqst dbg_reqst; + struct srpc_debug_reply dbg_reply; + struct srpc_batch_reqst bat_reqst; + struct srpc_batch_reply bat_reply; + struct srpc_stat_reqst stat_reqst; + struct srpc_stat_reply stat_reply; + struct srpc_test_reqst tes_reqst; + struct srpc_test_reply tes_reply; + struct srpc_join_reqst join_reqst; + struct srpc_join_reply join_reply; + + struct srpc_ping_reqst ping_reqst; + struct srpc_ping_reply ping_reply; + struct srpc_brw_reqst brw_reqst; + struct srpc_brw_reply brw_reply; } msg_body; } WIRE_ATTR; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 1dac777..4eac1c9 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -93,7 +93,7 @@ struct sfw_test_instance; /* all reply/bulk RDMAs go to this portal */ #define SRPC_RDMA_PORTAL 52 -static inline srpc_msg_type_t +static inline enum srpc_msg_type srpc_service2request(int service) { switch (service) { @@ -128,7 +128,7 @@ srpc_service2request(int service) } } -static inline srpc_msg_type_t +static inline enum srpc_msg_type srpc_service2reply(int service) { return srpc_service2request(service) + 1; @@ -385,9 +385,9 @@ struct sfw_test_instance { struct list_head tsi_active_rpcs; /* active rpcs */ union { - test_ping_req_t ping; /* ping parameter */ - test_bulk_req_t bulk_v0; /* bulk parameter */ - test_bulk_req_v1_t bulk_v1; /* bulk v1 parameter */ + struct test_ping_req ping; /* ping parameter */ + struct test_bulk_req bulk_v0; /* bulk parameter */ + struct test_bulk_req_v1 bulk_v1; /* bulk v1 parameter */ } tsi_u; }; @@ -428,7 +428,8 @@ void sfw_free_pages(struct srpc_server_rpc *rpc); void sfw_add_bulk_page(struct srpc_bulk *bk, struct page *pg, int i); int sfw_alloc_pages(struct srpc_server_rpc *rpc, int cpt, int npages, int len, int sink); -int sfw_make_session(srpc_mksn_reqst_t *request, srpc_mksn_reply_t *reply); +int sfw_make_session(struct srpc_mksn_reqst *request, + struct srpc_mksn_reply *reply); struct srpc_client_rpc * srpc_create_client_rpc(lnet_process_id_t peer, int service, -- cgit v0.10.2 From abcdb1e471e2adbe036123d12d625d65bb2ba8ef Mon Sep 17 00:00:00 2001 From: Aleksei Fedotov Date: Tue, 12 Apr 2016 14:05:49 +0300 Subject: staging: lustre: libcfs: Fix libcfs_ioctl() prototype. Fix libcfs_ioctl() prototype according to its definition in libcfs/module.c. Signed-off-by: Aleksei Fedotov Acked-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h index 9158c61..4141afb 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h @@ -106,7 +106,7 @@ int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand); int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, const struct libcfs_ioctl_hdr __user *uparam); int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data); -int libcfs_ioctl(unsigned long cmd, void *arg); +int libcfs_ioctl(unsigned long cmd, void __user *arg); /* container_of depends on "likely" which is defined in libcfs_private.h */ static inline void *__container_of(void *ptr, unsigned long shift) -- cgit v0.10.2 From 6a6514719455fd114a17c0e8c6ffff0f8c5151d6 Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Tue, 12 Apr 2016 21:11:08 -0400 Subject: staging/lustre: Fix blank line after/before {/} style This patch fixes all checkpatch occurences of CHECK: Blank lines aren't necessary after an open brace '{' CHECK: Blank lines aren't necessary before a close brace '}' in Lustre code. Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c index 2dfdb51..64c387e 100644 --- a/drivers/staging/lustre/lustre/fld/fld_request.c +++ b/drivers/staging/lustre/lustre/fld/fld_request.c @@ -95,7 +95,6 @@ static void fld_exit_request(struct client_obd *cli) spin_lock(&cli->cl_loi_list_lock); cli->cl_r_in_flight--; list_for_each_safe(l, tmp, &cli->cl_cache_waiters) { - if (cli->cl_r_in_flight >= cli->cl_max_rpcs_in_flight) { /* No free request slots anymore */ break; diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h index 0f70acd..b5b0c81 100644 --- a/drivers/staging/lustre/lustre/include/lu_object.h +++ b/drivers/staging/lustre/lustre/include/lu_object.h @@ -198,7 +198,6 @@ typedef int (*lu_printer_t)(const struct lu_env *env, * Operations specific for particular lu_object. */ struct lu_object_operations { - /** * Allocate lower-layer parts of the object by calling * lu_device_operations::ldo_object_alloc() of the corresponding diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c index 9e58b1c..bc951c0 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c @@ -429,7 +429,6 @@ err_ldlm: ldlm_put_ref(); err: return rc; - } EXPORT_SYMBOL(client_obd_setup); diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c index 3f9b8526..6c27b23 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c @@ -810,7 +810,6 @@ void ldlm_lock_decref_internal(struct ldlm_lock *lock, __u32 mode) } else if (!lock->l_readers && !lock->l_writers && !(lock->l_flags & LDLM_FL_NO_LRU) && !(lock->l_flags & LDLM_FL_BL_AST)) { - LDLM_DEBUG(lock, "add lock into lru list"); /* If this is a client-side namespace and this was the last diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index 880efdc..861e4be 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -1803,7 +1803,6 @@ static void ldlm_namespace_foreach(struct ldlm_namespace *ns, cfs_hash_for_each_nolock(ns->ns_rs_hash, ldlm_res_iter_helper, &helper); - } /* non-blocking function to manipulate a lock whose cb_data is being put away. diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 2f0873e..1d5366b 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -1059,7 +1059,6 @@ static int ll_ioc_copy_end(struct super_block *sb, struct hsm_copy *copy) /* hpk_errval must be >= 0 */ hpk.hpk_errval = EBUSY; } - } progress: @@ -1388,7 +1387,6 @@ out_free: lmv_out_free: obd_ioctl_freedata(buf, len); return rc; - } case LL_IOC_LOV_SETSTRIPE: { struct lov_user_md_v3 lumv3; diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c index d99d8c3..4a9f669 100644 --- a/drivers/staging/lustre/lustre/llite/lproc_llite.c +++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c @@ -254,7 +254,6 @@ static ssize_t max_read_ahead_mb_store(struct kobject *kobj, pages_number *= 1 << (20 - PAGE_SHIFT); /* MB -> pages */ if (pages_number > totalram_pages / 2) { - CERROR("can't set file readahead more than %lu MB\n", totalram_pages >> (20 - PAGE_SHIFT + 1)); /*1/2 of RAM*/ return -ERANGE; diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c index 9f6fcfe..43b2d08 100644 --- a/drivers/staging/lustre/lustre/llite/xattr.c +++ b/drivers/staging/lustre/lustre/llite/xattr.c @@ -339,7 +339,6 @@ int ll_getxattr_common(struct inode *inode, const char *name, */ if (xattr_type == XATTR_ACL_ACCESS_T && !(sbi->ll_flags & LL_SBI_RMT_CLIENT)) { - struct posix_acl *acl; spin_lock(&lli->lli_lock); diff --git a/drivers/staging/lustre/lustre/llite/xattr_cache.c b/drivers/staging/lustre/lustre/llite/xattr_cache.c index 3480ce2..d7e17ab 100644 --- a/drivers/staging/lustre/lustre/llite/xattr_cache.c +++ b/drivers/staging/lustre/lustre/llite/xattr_cache.c @@ -229,7 +229,6 @@ static int ll_xattr_cache_valid(struct ll_inode_info *lli) */ static int ll_xattr_cache_destroy_locked(struct ll_inode_info *lli) { - if (!ll_xattr_cache_valid(lli)) return 0; diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c index da4784b..86cb3f8 100644 --- a/drivers/staging/lustre/lustre/lov/lov_io.c +++ b/drivers/staging/lustre/lustre/lov/lov_io.c @@ -442,7 +442,6 @@ static int lov_io_rw_iter_init(const struct lu_env *env, /* fast path for common case. */ if (lio->lis_nr_subios != 1 && !cl_io_is_append(io)) { - lov_do_div64(start, ssize); next = (start + 1) * ssize; if (next <= start * ssize) diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c index 1a9e3e8..6d02914 100644 --- a/drivers/staging/lustre/lustre/lov/lov_obd.c +++ b/drivers/staging/lustre/lustre/lov/lov_obd.c @@ -964,7 +964,6 @@ int lov_process_config_base(struct obd_device *obd, struct lustre_cfg *lcfg, CERROR("Unknown command: %d\n", lcfg->lcfg_command); rc = -EINVAL; goto out; - } } out: diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c index d983a30..0215ea5 100644 --- a/drivers/staging/lustre/lustre/lov/lov_pack.c +++ b/drivers/staging/lustre/lustre/lov/lov_pack.c @@ -136,7 +136,6 @@ int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmmp, CERROR("bad mem LOV MAGIC: 0x%08X != 0x%08X nor 0x%08X\n", lmm_magic, LOV_MAGIC_V1, LOV_MAGIC_V3); return -EINVAL; - } if (lsm) { diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c index 7178a02..8226ab2 100644 --- a/drivers/staging/lustre/lustre/lov/lov_request.c +++ b/drivers/staging/lustre/lustre/lov/lov_request.c @@ -235,7 +235,6 @@ out: if (tmp_oa) kmem_cache_free(obdo_cachep, tmp_oa); return rc; - } int lov_fini_getattr_set(struct lov_request_set *set) diff --git a/drivers/staging/lustre/lustre/lov/lovsub_object.c b/drivers/staging/lustre/lustre/lov/lovsub_object.c index 3f51f0d..bcaae1e 100644 --- a/drivers/staging/lustre/lustre/lov/lovsub_object.c +++ b/drivers/staging/lustre/lustre/lov/lovsub_object.c @@ -71,7 +71,6 @@ int lovsub_object_init(const struct lu_env *env, struct lu_object *obj, result = -ENOMEM; } return result; - } static void lovsub_object_free(const struct lu_env *env, struct lu_object *obj) diff --git a/drivers/staging/lustre/lustre/mdc/mdc_lib.c b/drivers/staging/lustre/lustre/mdc/mdc_lib.c index 53cd56f..856c54e 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_lib.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_lib.c @@ -438,7 +438,6 @@ void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, int flags, char *tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME); LOGL0(op_data->op_name, op_data->op_namelen, tmp); - } } diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c index 958a164..9e970ab 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c @@ -963,7 +963,6 @@ static int mdc_finish_intent_lock(struct obd_export *exp, if (fid_is_sane(&op_data->op_fid2) && it->it_create_mode & M_CHECK_STALE && it->it_op != IT_GETATTR) { - /* Also: did we find the same inode? */ /* sever can return one of two fids: * op_fid2 - new allocated fid - if file is created. diff --git a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c index 3924b09..0c3bd16 100644 --- a/drivers/staging/lustre/lustre/mgc/mgc_request.c +++ b/drivers/staging/lustre/lustre/mgc/mgc_request.c @@ -1720,7 +1720,6 @@ static int mgc_process_config(struct obd_device *obd, u32 len, void *buf) CERROR("Unknown command: %d\n", lcfg->lcfg_command); rc = -EINVAL; goto out; - } } out: diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c index 799e558..a3c7e7b 100644 --- a/drivers/staging/lustre/lustre/obdclass/class_obd.c +++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c @@ -335,7 +335,6 @@ int class_handle_ioctl(unsigned int cmd, unsigned long arg) err = 0; goto out; } - } if (data->ioc_dev == OBD_DEV_BY_DEVNAME) { diff --git a/drivers/staging/lustre/lustre/obdclass/genops.c b/drivers/staging/lustre/lustre/obdclass/genops.c index cf97b8f0..d95f11d 100644 --- a/drivers/staging/lustre/lustre/obdclass/genops.c +++ b/drivers/staging/lustre/lustre/obdclass/genops.c @@ -604,7 +604,6 @@ int obd_init_caches(void) out: obd_cleanup_caches(); return -ENOMEM; - } /* map connection to client */ diff --git a/drivers/staging/lustre/lustre/obdclass/llog.c b/drivers/staging/lustre/lustre/obdclass/llog.c index 992573e..79194d8 100644 --- a/drivers/staging/lustre/lustre/obdclass/llog.c +++ b/drivers/staging/lustre/lustre/obdclass/llog.c @@ -265,7 +265,6 @@ repeat: for (rec = (struct llog_rec_hdr *)buf; (char *)rec < buf + LLOG_CHUNK_SIZE; rec = (struct llog_rec_hdr *)((char *)rec + rec->lrh_len)) { - CDEBUG(D_OTHER, "processing rec 0x%p type %#x\n", rec, rec->lrh_type); diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c index 990e939..e043857 100644 --- a/drivers/staging/lustre/lustre/obdclass/lu_object.c +++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c @@ -104,7 +104,6 @@ void lu_object_put(const struct lu_env *env, struct lu_object *o) if (!cfs_hash_bd_dec_and_lock(site->ls_obj_hash, &bd, &top->loh_ref)) { if (lu_object_is_dying(top)) { - /* * somebody may be waiting for this, currently only * used for cl_object, see cl_object_put_last(). @@ -358,7 +357,6 @@ int lu_site_purge(const struct lu_env *env, struct lu_site *s, int nr) if (count > 0 && --count == 0) break; - } cfs_hash_bd_unlock(s->ls_obj_hash, &bd, 1); cond_resched(); diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c index 5395e99..318a2e3 100644 --- a/drivers/staging/lustre/lustre/obdclass/obd_config.c +++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c @@ -961,7 +961,6 @@ int class_process_config(struct lustre_cfg *lcfg) default: { err = obd_process_config(obd, sizeof(*lcfg), lcfg); goto out; - } } out: diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c index b271895..6aa6d86 100644 --- a/drivers/staging/lustre/lustre/obdecho/echo_client.c +++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c @@ -1354,7 +1354,6 @@ static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa, for (i = 0, pgp = pga, off = offset; i < npages; i++, pgp++, off += PAGE_SIZE) { - LASSERT(!pgp->pg); /* for cleanup */ rc = -ENOMEM; @@ -1831,7 +1830,6 @@ static int __init obdecho_init(void) static void /*__exit*/ obdecho_exit(void) { echo_client_exit(); - } MODULE_AUTHOR("OpenSFS, Inc. "); diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index ef68821..de8c825 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -1820,7 +1820,6 @@ static void osc_process_ar(struct osc_async_rc *ar, __u64 xid, ar->ar_force_sync = 1; ar->ar_min_xid = ptlrpc_sample_next_xid(); return; - } if (ar->ar_force_sync && (xid >= ar->ar_min_xid)) diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c index c1efcb3..9d67fca 100644 --- a/drivers/staging/lustre/lustre/osc/osc_io.c +++ b/drivers/staging/lustre/lustre/osc/osc_io.c @@ -782,7 +782,6 @@ static void osc_req_attr_set(const struct lu_env *env, oa->o_valid |= OBD_MD_FLID; } if (flags & OBD_MD_FLHANDLE) { - clerq = slice->crs_req; LASSERT(!list_empty(&clerq->crq_pages)); apage = container_of(clerq->crq_pages.next, diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index b55f467..5ec5508 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -759,7 +759,6 @@ static int osc_lru_reserve(const struct lu_env *env, struct osc_object *obj, LASSERT(atomic_read(cli->cl_lru_left) >= 0); while (!atomic_add_unless(cli->cl_lru_left, -1, 0)) { - /* run out of LRU spaces, try to drop some by itself */ rc = osc_lru_reclaim(cli); if (rc < 0) diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 4d0f831..e5794fb 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -837,7 +837,6 @@ static void osc_announce_cached(struct client_obd *cli, struct obdo *oa, spin_unlock(&cli->cl_loi_list_lock); CDEBUG(D_CACHE, "dirty: %llu undirty: %u dropped %u grant: %llu\n", oa->o_dirty, oa->o_undirty, oa->o_dropped, oa->o_grant); - } void osc_update_next_shrink(struct client_obd *cli) diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c index e02d95d1..4b7912a 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/client.c +++ b/drivers/staging/lustre/lustre/ptlrpc/client.c @@ -1082,7 +1082,6 @@ static int ptlrpc_console_allow(struct ptlrpc_request *req) */ if ((lustre_handle_is_used(&req->rq_import->imp_remote_handle)) && (opc == OST_CONNECT || opc == MDS_CONNECT || opc == MGS_CONNECT)) { - /* Suppress timed out reconnect requests */ if (req->rq_timedout) return 0; diff --git a/drivers/staging/lustre/lustre/ptlrpc/events.c b/drivers/staging/lustre/lustre/ptlrpc/events.c index 47be21a..fdcde9b 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/events.c +++ b/drivers/staging/lustre/lustre/ptlrpc/events.c @@ -69,7 +69,6 @@ void request_out_callback(lnet_event_t *ev) req->rq_req_unlink = 0; if (ev->type == LNET_EVENT_UNLINK || ev->status != 0) { - /* Failed send: make it seem like the reply timed out, just * like failing sends in client.c does currently... */ diff --git a/drivers/staging/lustre/lustre/ptlrpc/import.c b/drivers/staging/lustre/lustre/ptlrpc/import.c index cd94fed..bf7b9d2 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/import.c +++ b/drivers/staging/lustre/lustre/ptlrpc/import.c @@ -1001,7 +1001,6 @@ finish: return 0; } } else { - spin_lock(&imp->imp_lock); list_del(&imp->imp_conn_current->oic_item); list_add(&imp->imp_conn_current->oic_item, &imp->imp_conn_list); @@ -1370,7 +1369,6 @@ int ptlrpc_import_recovery_state_machine(struct obd_import *imp) if (rc) goto out; } - } if (imp->imp_state == LUSTRE_IMP_REPLAY_WAIT) { @@ -1453,7 +1451,6 @@ int ptlrpc_disconnect_import(struct obd_import *imp, int noclose) back_to_sleep, LWI_ON_SIGNAL_NOOP, NULL); rc = l_wait_event(imp->imp_recovery_waitq, !ptlrpc_import_in_recovery(imp), &lwi); - } spin_lock(&imp->imp_lock); diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c index a35b56e..6dba4ee 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c @@ -1321,6 +1321,5 @@ int lprocfs_wr_pinger_recov(struct file *file, const char __user *buffer, up_read(&obd->u.cli.cl_sem); return count; - } EXPORT_SYMBOL(lprocfs_wr_pinger_recov); diff --git a/drivers/staging/lustre/lustre/ptlrpc/nrs.c b/drivers/staging/lustre/lustre/ptlrpc/nrs.c index 710fb80..99ff6e8 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/nrs.c +++ b/drivers/staging/lustre/lustre/ptlrpc/nrs.c @@ -1038,7 +1038,6 @@ static int nrs_policy_unregister_locked(struct ptlrpc_nrs_pol_desc *desc) LASSERT(mutex_is_locked(&ptlrpc_all_services_mutex)); list_for_each_entry(svc, &ptlrpc_all_services, srv_list) { - if (!nrs_policy_compatible(svc, desc) || unlikely(svc->srv_is_stopping)) continue; diff --git a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c index 492d63f..811acf6 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c +++ b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c @@ -1160,7 +1160,6 @@ __u32 lustre_msg_get_timeout(struct lustre_msg *msg) if (!pb) { CERROR("invalid msg %p: no ptlrpc body!\n", msg); return 0; - } return pb->pb_timeout; } @@ -1179,7 +1178,6 @@ __u32 lustre_msg_get_service_time(struct lustre_msg *msg) if (!pb) { CERROR("invalid msg %p: no ptlrpc body!\n", msg); return 0; - } return pb->pb_service_time; } @@ -1572,7 +1570,6 @@ static void lustre_swab_obdo(struct obdo *o) CLASSERT(offsetof(typeof(*o), o_padding_4) != 0); CLASSERT(offsetof(typeof(*o), o_padding_5) != 0); CLASSERT(offsetof(typeof(*o), o_padding_6) != 0); - } void lustre_swab_obd_statfs(struct obd_statfs *os) -- cgit v0.10.2 From 06d2fccd6b551be8c1efb8b37d01c511d2b3e905 Mon Sep 17 00:00:00 2001 From: Bobi Jam Date: Tue, 12 Apr 2016 21:11:09 -0400 Subject: staging/lustre/llite: suppress non active IO error message Current CLIO does not support fadvise, suppress the error message. Signed-off-by: Bobi Jam Reviewed-on: http://review.whamcloud.com/9658 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4717 Reviewed-by: Jinshan Xiong Reviewed-by: Andreas Dilger Signed-off-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index fee319c..4ddf8b3 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -111,16 +111,9 @@ struct ll_cl_context *ll_cl_init(struct file *file, struct page *vmpage) vio = vvp_env_io(env); io = vio->vui_cl.cis_io; lcc->lcc_io = io; - if (!io) { - struct inode *inode = file_inode(file); - - CERROR("%s: " DFID " no active IO, please file a ticket.\n", - ll_get_fsname(inode->i_sb, NULL, 0), - PFID(ll_inode2fid(inode))); - dump_stack(); - + if (!io) result = -EIO; - } + if (result == 0 && vmpage) { struct cl_page *page; -- cgit v0.10.2 From 82281bc0c31ccd3a0733c678ad0f0a19ca59246d Mon Sep 17 00:00:00 2001 From: Sebastien Buisson Date: Tue, 12 Apr 2016 16:14:01 -0400 Subject: staging: lustre: osc: fix race issues thanks to oap_lock Fix 'data race condition' defects found by Coverity version 6.5.0: Data race condition (MISSING_LOCK) Accessing variable without holding lock. Elsewhere, this variable is accessed with lock held. This patch is dedicated to code fragments involving oap_lock. Signed-off-by: Sebastien Buisson Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2744 Reviewed-on: http://review.whamcloud.com/6572 Reviewed-by: Oleg Drokin Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index de8c825..8263a85 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -1147,7 +1147,9 @@ static int osc_extent_make_ready(const struct lu_env *env, last->oap_count = osc_refresh_count(env, last, OBD_BRW_WRITE); LASSERT(last->oap_count > 0); LASSERT(last->oap_page_off + last->oap_count <= PAGE_SIZE); + spin_lock(&last->oap_lock); last->oap_async_flags |= ASYNC_COUNT_STABLE; + spin_unlock(&last->oap_lock); } /* for the rest of pages, we don't need to call osf_refresh_count() @@ -1156,7 +1158,9 @@ static int osc_extent_make_ready(const struct lu_env *env, list_for_each_entry(oap, &ext->oe_pages, oap_pending_item) { if (!(oap->oap_async_flags & ASYNC_COUNT_STABLE)) { oap->oap_count = PAGE_SIZE - oap->oap_page_off; + spin_lock(&last->oap_lock); oap->oap_async_flags |= ASYNC_COUNT_STABLE; + spin_unlock(&last->oap_lock); } } @@ -2327,6 +2331,10 @@ int osc_queue_async_io(const struct lu_env *env, struct cl_io *io, oap->oap_cmd = cmd; oap->oap_page_off = ops->ops_from; oap->oap_count = ops->ops_to - ops->ops_from; + /* + * No need to hold a lock here, + * since this page is not in any list yet. + */ oap->oap_async_flags = 0; oap->oap_brw_flags = brw_flags; diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c index 9d67fca..d534b0e 100644 --- a/drivers/staging/lustre/lustre/osc/osc_io.c +++ b/drivers/staging/lustre/lustre/osc/osc_io.c @@ -168,8 +168,10 @@ static int osc_io_submit(const struct lu_env *env, } cl_page_list_move(qout, qin, page); + spin_lock(&oap->oap_lock); oap->oap_async_flags = ASYNC_URGENT|ASYNC_READY; oap->oap_async_flags |= ASYNC_COUNT_STABLE; + spin_unlock(&oap->oap_lock); osc_page_submit(env, opg, crt, brw_flags); list_add_tail(&oap->oap_pending_item, &list); -- cgit v0.10.2 From 800548b1b1a71bb12e74bedae7a575b155ced851 Mon Sep 17 00:00:00 2001 From: Niu Yawei Date: Tue, 12 Apr 2016 16:14:02 -0400 Subject: staging: lustre: clio: incorrect assertions in 'enable-invariants' Fixed several incorrect assumptions in 'enable-invariants'. Signed-off-by: Niu Yawei Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3521 Reviewed-on: http://review.whamcloud.com/6832 Reviewed-by: Bobi Jam Reviewed-by: Jinshan Xiong Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c index 39095e7..b754f51 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c @@ -498,7 +498,7 @@ void cl_page_disown0(const struct lu_env *env, state = pg->cp_state; PINVRNT(env, pg, state == CPS_OWNED || state == CPS_FREEING); - PINVRNT(env, pg, cl_page_invariant(pg)); + PINVRNT(env, pg, cl_page_invariant(pg) || state == CPS_FREEING); cl_page_owner_clear(pg); if (state == CPS_OWNED) @@ -670,7 +670,8 @@ EXPORT_SYMBOL(cl_page_unassume); void cl_page_disown(const struct lu_env *env, struct cl_io *io, struct cl_page *pg) { - PINVRNT(env, pg, cl_page_is_owned(pg, io)); + PINVRNT(env, pg, cl_page_is_owned(pg, io) || + pg->cp_state == CPS_FREEING); io = cl_io_top(io); cl_page_disown0(env, io, pg); -- cgit v0.10.2 From 7e74e54f08294a81b82b686e86b9d784ad65a5f9 Mon Sep 17 00:00:00 2001 From: Bruno Faccini Date: Tue, 12 Apr 2016 16:14:03 -0400 Subject: staging: lustre: ldlm: Fix a race during FLock handling Protect against race where lock could have been just destroyed due to overlap, in ldlm_process_flock_lock(). Easy reproducer is BULL's NFS Locktests in pthread mode. (http://nfsv4.bullopensource.org/tools/tests/locktest.php) Signed-off-by: Bruno Faccini Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-1126 Reviewed-on: http://review.whamcloud.com/7134 Reviewed-by: Oleg Drokin Reviewed-by: John L. Hammond Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c index 3f97e1c..5102d78 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c @@ -520,11 +520,6 @@ ldlm_flock_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data) granted: OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_CP_CB_WAIT, 10); - if (lock->l_flags & LDLM_FL_DESTROYED) { - LDLM_DEBUG(lock, "client-side enqueue waking up: destroyed"); - return 0; - } - if (lock->l_flags & LDLM_FL_FAILED) { LDLM_DEBUG(lock, "client-side enqueue waking up: failed"); return -EIO; @@ -534,6 +529,16 @@ granted: lock_res_and_lock(lock); + /* + * Protect against race where lock could have been just destroyed + * due to overlap in ldlm_process_flock_lock(). + */ + if (lock->l_flags & LDLM_FL_DESTROYED) { + unlock_res_and_lock(lock); + LDLM_DEBUG(lock, "client-side enqueue waking up: destroyed"); + return 0; + } + /* ldlm_lock_enqueue() has already placed lock on the granted list. */ list_del_init(&lock->l_res_link); -- cgit v0.10.2 From e9ada6fa3c9e3dbd02eda3da4179b4d1417ef171 Mon Sep 17 00:00:00 2001 From: Bruno Faccini Date: Tue, 12 Apr 2016 16:14:04 -0400 Subject: staging: lustre: ldlm: refine LU-2665 patch for POSIX compliance Follow-on to patch introduced to fix LU-2665 ticket (Gerrit Change at http://review.whamcloud.com/6415 with Change-Id: I8faa331712abeadee46eabe111ee1c23a05840d5). Original patch introduced regressions against POSIX test suite (fcntl.18/fcntl.35 tests in LSB-VSX POSIX test suite at http://www.opengroup.org/testing/linux-test/lsb-vsx.html), so the idea is to only resend F_UNLCKs to have both LU-2665 bug and POSIX test suite happy. Signed-off-by: Bruno Faccini Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3701 Reviewed-on: http://review.whamcloud.com/7453 Reviewed-by: Bobi Jam Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c index 9e970ab..3b1bc91 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c @@ -869,7 +869,9 @@ resend: * (explicits or automatically generated by Kernel to clean * current FLocks upon exit) that can't be trashed */ - if ((rc == -EINTR) || (rc == -ETIMEDOUT)) + if (((rc == -EINTR) || (rc == -ETIMEDOUT)) && + (einfo->ei_type == LDLM_FLOCK) && + (einfo->ei_mode == LCK_NL)) goto resend; return rc; } -- cgit v0.10.2 From 96d61c247ec02518ba2ff453f71ee15feb522456 Mon Sep 17 00:00:00 2001 From: Andrew Perepechko Date: Tue, 12 Apr 2016 16:14:05 -0400 Subject: staging: lustre: llite: variable rename in namei.c With the patch 6648 a fee variables were renamed. We do these renames in broken out patch to the fix obvious. Signed-off-by: Andrew Perepechko Reviewed-by: Alexander Boyko Reviewed-by: Vitaly Fertman Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3473 Xyratex-bug-id: MRP-1027 Reviewed-on: http://review.whamcloud.com/6648 Reviewed-by: Fan Yong Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c index 8561707..73e61cf 100644 --- a/drivers/staging/lustre/lustre/llite/namei.c +++ b/drivers/staging/lustre/lustre/llite/namei.c @@ -929,23 +929,23 @@ out: * is any lock existing. They will recycle dentries and inodes based upon locks * too. b=20433 */ -static int ll_unlink(struct inode *dir, struct dentry *dentry) +static int ll_unlink(struct inode *dir, struct dentry *dchild) { struct ptlrpc_request *request = NULL; struct md_op_data *op_data; int rc; CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p)\n", - dentry, dir->i_ino, dir->i_generation, dir); + dchild, dir->i_ino, dir->i_generation, dir); op_data = ll_prep_md_op_data(NULL, dir, NULL, - dentry->d_name.name, - dentry->d_name.len, + dchild->d_name.name, + dchild->d_name.len, 0, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) return PTR_ERR(op_data); - ll_get_child_fid(dentry, &op_data->op_fid3); + ll_get_child_fid(dchild, &op_data->op_fid3); op_data->op_fid2 = op_data->op_fid3; rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request); ll_finish_md_op_data(op_data); @@ -979,23 +979,23 @@ static int ll_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) return err; } -static int ll_rmdir(struct inode *dir, struct dentry *dentry) +static int ll_rmdir(struct inode *dir, struct dentry *dchild) { struct ptlrpc_request *request = NULL; struct md_op_data *op_data; int rc; CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p)\n", - dentry, dir->i_ino, dir->i_generation, dir); + dchild, dir->i_ino, dir->i_generation, dir); op_data = ll_prep_md_op_data(NULL, dir, NULL, - dentry->d_name.name, - dentry->d_name.len, + dchild->d_name.name, + dchild->d_name.len, S_IFDIR, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) return PTR_ERR(op_data); - ll_get_child_fid(dentry, &op_data->op_fid3); + ll_get_child_fid(dchild, &op_data->op_fid3); op_data->op_fid2 = op_data->op_fid3; rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request); ll_finish_md_op_data(op_data); @@ -1058,42 +1058,42 @@ out: return err; } -static int ll_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) +static int ll_rename(struct inode *src, struct dentry *src_dchild, + struct inode *tgt, struct dentry *tgt_dchild) { struct ptlrpc_request *request = NULL; - struct ll_sb_info *sbi = ll_i2sbi(old_dir); + struct ll_sb_info *sbi = ll_i2sbi(src); struct md_op_data *op_data; int err; CDEBUG(D_VFSTRACE, "VFS Op:oldname=%pd,src_dir=%lu/%u(%p),newname=%pd,tgt_dir=%lu/%u(%p)\n", - old_dentry, old_dir->i_ino, old_dir->i_generation, old_dir, - new_dentry, new_dir->i_ino, new_dir->i_generation, new_dir); + src_dchild, src->i_ino, src->i_generation, src, + tgt_dchild, tgt->i_ino, tgt->i_generation, tgt); - op_data = ll_prep_md_op_data(NULL, old_dir, new_dir, NULL, 0, 0, + op_data = ll_prep_md_op_data(NULL, src, tgt, NULL, 0, 0, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) return PTR_ERR(op_data); - ll_get_child_fid(old_dentry, &op_data->op_fid3); - ll_get_child_fid(new_dentry, &op_data->op_fid4); + ll_get_child_fid(src_dchild, &op_data->op_fid3); + ll_get_child_fid(tgt_dchild, &op_data->op_fid4); err = md_rename(sbi->ll_md_exp, op_data, - old_dentry->d_name.name, - old_dentry->d_name.len, - new_dentry->d_name.name, - new_dentry->d_name.len, &request); + src_dchild->d_name.name, + src_dchild->d_name.len, + tgt_dchild->d_name.name, + tgt_dchild->d_name.len, &request); ll_finish_md_op_data(op_data); if (!err) { - ll_update_times(request, old_dir); - ll_update_times(request, new_dir); + ll_update_times(request, src); + ll_update_times(request, tgt); ll_stats_ops_tally(sbi, LPROC_LL_RENAME, 1); - err = ll_objects_destroy(request, old_dir); + err = ll_objects_destroy(request, src); } ptlrpc_req_finished(request); if (!err) - d_move(old_dentry, new_dentry); + d_move(src_dchild, tgt_dchild); return err; } -- cgit v0.10.2 From 3c4b9d09729cb04070edb167c813884507f4e433 Mon Sep 17 00:00:00 2001 From: Andrew Perepechko Date: Tue, 12 Apr 2016 16:14:06 -0400 Subject: staging: lustre: llite: speedup in unlink/rmdir Assume dchild argument is fully initialized in ->unlink and ->rmdir callbacks, so additional lookup for ELC is not needed. Signed-off-by: Andrew Perepechko Reviewed-by: Alexander Boyko Reviewed-by: Vitaly Fertman Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3473 Xyratex-bug-id: MRP-1027 Reviewed-on: http://review.whamcloud.com/6648 Reviewed-by: Fan Yong Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c index 73e61cf..9fa862b 100644 --- a/drivers/staging/lustre/lustre/llite/namei.c +++ b/drivers/staging/lustre/lustre/llite/namei.c @@ -847,12 +847,6 @@ static int ll_create_nd(struct inode *dir, struct dentry *dentry, return rc; } -static inline void ll_get_child_fid(struct dentry *child, struct lu_fid *fid) -{ - if (d_really_is_positive(child)) - *fid = *ll_inode2fid(d_inode(child)); -} - int ll_objects_destroy(struct ptlrpc_request *request, struct inode *dir) { struct mdt_body *body; @@ -945,7 +939,9 @@ static int ll_unlink(struct inode *dir, struct dentry *dchild) if (IS_ERR(op_data)) return PTR_ERR(op_data); - ll_get_child_fid(dchild, &op_data->op_fid3); + if (dchild && dchild->d_inode) + op_data->op_fid3 = *ll_inode2fid(dchild->d_inode); + op_data->op_fid2 = op_data->op_fid3; rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request); ll_finish_md_op_data(op_data); @@ -995,7 +991,9 @@ static int ll_rmdir(struct inode *dir, struct dentry *dchild) if (IS_ERR(op_data)) return PTR_ERR(op_data); - ll_get_child_fid(dchild, &op_data->op_fid3); + if (dchild && dchild->d_inode) + op_data->op_fid3 = *ll_inode2fid(dchild->d_inode); + op_data->op_fid2 = op_data->op_fid3; rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request); ll_finish_md_op_data(op_data); @@ -1076,8 +1074,11 @@ static int ll_rename(struct inode *src, struct dentry *src_dchild, if (IS_ERR(op_data)) return PTR_ERR(op_data); - ll_get_child_fid(src_dchild, &op_data->op_fid3); - ll_get_child_fid(tgt_dchild, &op_data->op_fid4); + if (src_dchild && src_dchild->d_inode) + op_data->op_fid3 = *ll_inode2fid(src_dchild->d_inode); + if (tgt_dchild && tgt_dchild->d_inode) + op_data->op_fid4 = *ll_inode2fid(tgt_dchild->d_inode); + err = md_rename(sbi->ll_md_exp, op_data, src_dchild->d_name.name, src_dchild->d_name.len, -- cgit v0.10.2 From 32cc01c42fc0fefaed58d22b4b1657f56e11f0fb Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Tue, 12 Apr 2016 16:14:07 -0400 Subject: staging: lustre: llite: error setting max_cache_mb at mount time The root cause is that when max_cache_mb conf parameter is applied, the client isn't connected to the OST yet so that sbi->ll_dt_exp is NULL. However, it's not necessary to shrink the cache memory in this case so success should be returned. Signed-off-by: Jinshan Xiong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3676 Reviewed-on: http://review.whamcloud.com/7194 Reviewed-by: Andreas Dilger Reviewed-by: Bobi Jam Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c index 4a9f669..501b93b 100644 --- a/drivers/staging/lustre/lustre/llite/lproc_llite.c +++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c @@ -460,8 +460,8 @@ static ssize_t ll_max_cached_mb_seq_write(struct file *file, break; if (!sbi->ll_dt_exp) { /* being initialized */ - rc = -ENODEV; - break; + rc = 0; + goto out; } /* difficult - have to ask OSCs to drop LRU slots. */ -- cgit v0.10.2 From 489d82fcd8f39ad43a65d72abe9bf835a5af3f63 Mon Sep 17 00:00:00 2001 From: Bobi Jam Date: Tue, 12 Apr 2016 16:14:08 -0400 Subject: staging: lustre: obd: MDT mount fails on MDS w/o MGS on it If we specify multiple --mgsnode for a MDT, when we start MDS upon it while MGS is no the other node, the MGC import connection will always select the local nid (which is one of the candidate mgsnode) since it think its the closest connection. This patch treats further --mgsnode nids as failover nids, so that multiple import connections are added for the MGC import. Signed-off-by: Bobi Jam Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3829 Reviewed-on: http://review.whamcloud.com/7509 Reviewed-by: Liang Zhen Reviewed-by: Lai Siyao Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c index d3e28a3..9474aa9 100644 --- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c +++ b/drivers/staging/lustre/lustre/obdclass/obd_mount.c @@ -307,7 +307,8 @@ int lustre_start_mgc(struct super_block *sb) while (class_parse_nid(ptr, &nid, &ptr) == 0) { rc = do_lcfg(mgcname, nid, LCFG_ADD_UUID, niduuid, NULL, NULL, NULL); - i++; + if (!rc) + i++; /* Stop at the first failover nid */ if (*ptr == ':') break; @@ -345,16 +346,18 @@ int lustre_start_mgc(struct super_block *sb) sprintf(niduuid, "%s_%x", mgcname, i); j = 0; while (class_parse_nid_quiet(ptr, &nid, &ptr) == 0) { - j++; - rc = do_lcfg(mgcname, nid, - LCFG_ADD_UUID, niduuid, NULL, NULL, NULL); + rc = do_lcfg(mgcname, nid, LCFG_ADD_UUID, niduuid, + NULL, NULL, NULL); + if (!rc) + ++j; if (*ptr == ':') break; } if (j > 0) { rc = do_lcfg(mgcname, 0, LCFG_ADD_CONN, niduuid, NULL, NULL, NULL); - i++; + if (!rc) + i++; } else { /* at ":/fsname" */ break; -- cgit v0.10.2 From cc3b77589617b32c4fe610d9d6302a159f1fde13 Mon Sep 17 00:00:00 2001 From: Swapnil Pimpale Date: Tue, 12 Apr 2016 16:14:09 -0400 Subject: staging: lustre: ptlrpc: return a meaningful status from ptlrpcd_init() This patch has the following: 1) Fix for the return value from ptlrpcd_init(). It will now return a correct status instead of returning zero always. 2) ptlrpcd_addref() should not increment ptlrpcd_users on error. 3) Added code in a mdc_setup() and mgc_setup() to test the return value of ptlrpcd_addref() and return on error. Signed-off-by: Swapnil Pimpale Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3808 Reviewed-on: http://review.whamcloud.com/7522 Reviewed-by: John L. Hammond Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c index 6023c2c..5f1ac58 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_request.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c @@ -2314,12 +2314,14 @@ static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg) return -ENOMEM; mdc_init_rpc_lock(cli->cl_rpc_lock); - ptlrpcd_addref(); + rc = ptlrpcd_addref(); + if (rc < 0) + goto err_rpc_lock; cli->cl_close_lock = kzalloc(sizeof(*cli->cl_close_lock), GFP_NOFS); if (!cli->cl_close_lock) { rc = -ENOMEM; - goto err_rpc_lock; + goto err_ptlrpcd_decref; } mdc_init_rpc_lock(cli->cl_close_lock); @@ -2345,9 +2347,10 @@ static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg) err_close_lock: kfree(cli->cl_close_lock); +err_ptlrpcd_decref: + ptlrpcd_decref(); err_rpc_lock: kfree(cli->cl_rpc_lock); - ptlrpcd_decref(); return rc; } diff --git a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c index 0c3bd16..933f6f6 100644 --- a/drivers/staging/lustre/lustre/mgc/mgc_request.c +++ b/drivers/staging/lustre/lustre/mgc/mgc_request.c @@ -734,7 +734,9 @@ static int mgc_setup(struct obd_device *obd, struct lustre_cfg *lcfg) struct task_struct *task; int rc; - ptlrpcd_addref(); + rc = ptlrpcd_addref(); + if (rc < 0) + goto err_noref; rc = client_obd_setup(obd, lcfg); if (rc) @@ -773,6 +775,7 @@ err_cleanup: client_obd_cleanup(obd); err_decref: ptlrpcd_decref(); +err_noref: return rc; } diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c index dbc3376..76a355a 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c +++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c @@ -909,8 +909,11 @@ int ptlrpcd_addref(void) int rc = 0; mutex_lock(&ptlrpcd_mutex); - if (++ptlrpcd_users == 1) + if (++ptlrpcd_users == 1) { rc = ptlrpcd_init(); + if (rc < 0) + ptlrpcd_users--; + } mutex_unlock(&ptlrpcd_mutex); return rc; } -- cgit v0.10.2 From 1b1594da71c4286ce52009073ef0d7b6edc80ec5 Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Tue, 12 Apr 2016 16:14:10 -0400 Subject: staging: lustre: llite: Truncate to restore file Truncate up is safe so it won't trigger restore. Copy optimization for truncate down - only copy the part under truncate length. If a file is truncated to zero usually it'll be followed by write so I choose to restore the file and set correct stripe information. Signed-off-by: Jinshan Xiong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3817 Reviewed-on: http://review.whamcloud.com/7505 Reviewed-by: jacques-Charles Lafoucriere Reviewed-by: Henri Doreau Reviewed-by: Aurelien Degremont Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 9b553d2..24fa24b 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -3621,7 +3621,7 @@ again: /** * This function send a restore request to the MDT */ -int ll_layout_restore(struct inode *inode) +int ll_layout_restore(struct inode *inode, loff_t offset, __u64 length) { struct hsm_user_request *hur; int len, rc; @@ -3637,7 +3637,8 @@ int ll_layout_restore(struct inode *inode) hur->hur_request.hr_flags = 0; memcpy(&hur->hur_user_item[0].hui_fid, &ll_i2info(inode)->lli_fid, sizeof(hur->hur_user_item[0].hui_fid)); - hur->hur_user_item[0].hui_extent.length = -1; + hur->hur_user_item[0].hui_extent.offset = offset; + hur->hur_user_item[0].hui_extent.length = length; hur->hur_request.hr_itemcount = 1; rc = obd_iocontrol(LL_IOC_HSM_REQUEST, ll_i2sbi(inode)->ll_md_exp, len, hur, NULL); diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 2a11664..22e9989 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -1377,7 +1377,7 @@ enum { int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf); int ll_layout_refresh(struct inode *inode, __u32 *gen); -int ll_layout_restore(struct inode *inode); +int ll_layout_restore(struct inode *inode, loff_t start, __u64 length); int ll_xattr_init(void); void ll_xattr_fini(void); diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index b0948a7..9f338b1 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -1266,14 +1266,6 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import) LTIME_S(attr->ia_mtime), LTIME_S(attr->ia_ctime), (s64)ktime_get_real_seconds()); - /* If we are changing file size, file content is modified, flag it. */ - if (attr->ia_valid & ATTR_SIZE) { - attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE; - spin_lock(&lli->lli_lock); - lli->lli_flags |= LLIF_DATA_MODIFIED; - spin_unlock(&lli->lli_lock); - } - /* We always do an MDS RPC, even if we're only changing the size; * only the MDS knows whether truncate() should fail with -ETXTBUSY */ @@ -1285,13 +1277,6 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import) if (!S_ISDIR(inode->i_mode)) inode_unlock(inode); - memcpy(&op_data->op_attr, attr, sizeof(*attr)); - - /* Open epoch for truncate. */ - if (exp_connect_som(ll_i2mdexp(inode)) && - (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET))) - op_data->op_flags = MF_EPOCH_OPEN; - /* truncate on a released file must failed with -ENODATA, * so size must not be set on MDS for released file * but other attributes must be set @@ -1305,29 +1290,40 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import) if (lsm && lsm->lsm_pattern & LOV_PATTERN_F_RELEASED) file_is_released = true; ccc_inode_lsm_put(inode, lsm); + + if (!hsm_import && attr->ia_valid & ATTR_SIZE) { + if (file_is_released) { + rc = ll_layout_restore(inode, 0, attr->ia_size); + if (rc < 0) + goto out; + + file_is_released = false; + ll_layout_refresh(inode, &gen); + } + + /* + * If we are changing file size, file content is + * modified, flag it. + */ + attr->ia_valid |= MDS_OPEN_OWNEROVERRIDE; + spin_lock(&lli->lli_lock); + lli->lli_flags |= LLIF_DATA_MODIFIED; + spin_unlock(&lli->lli_lock); + op_data->op_bias |= MDS_DATA_MODIFIED; + } } - /* if not in HSM import mode, clear size attr for released file - * we clear the attribute send to MDT in op_data, not the original - * received from caller in attr which is used later to - * decide return code - */ - if (file_is_released && (attr->ia_valid & ATTR_SIZE) && !hsm_import) - op_data->op_attr.ia_valid &= ~ATTR_SIZE; + memcpy(&op_data->op_attr, attr, sizeof(*attr)); + + /* Open epoch for truncate. */ + if (exp_connect_som(ll_i2mdexp(inode)) && !hsm_import && + (attr->ia_valid & (ATTR_SIZE | ATTR_MTIME | ATTR_MTIME_SET))) + op_data->op_flags = MF_EPOCH_OPEN; rc = ll_md_setattr(dentry, op_data, &mod); if (rc) goto out; - /* truncate failed (only when non HSM import), others succeed */ - if (file_is_released) { - if ((attr->ia_valid & ATTR_SIZE) && !hsm_import) - rc = -ENODATA; - else - rc = 0; - goto out; - } - /* RPC to MDT is sent, cancel data modification flag */ if (op_data->op_bias & MDS_DATA_MODIFIED) { spin_lock(&lli->lli_lock); @@ -1336,7 +1332,7 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import) } ll_ioepoch_open(lli, op_data->op_ioepoch); - if (!S_ISREG(inode->i_mode)) { + if (!S_ISREG(inode->i_mode) || file_is_released) { rc = 0; goto out; } diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index 26dfbf1..5bf9592 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -294,6 +294,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) struct cl_io *io = ios->cis_io; struct cl_object *obj = io->ci_obj; struct vvp_io *vio = cl2vvp_io(env, ios); + struct inode *inode = vvp_object_inode(obj); CLOBINVRNT(env, obj, vvp_object_invariant(obj)); @@ -309,7 +310,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) /* file was detected release, we need to restore it * before finishing the io */ - rc = ll_layout_restore(vvp_object_inode(obj)); + rc = ll_layout_restore(inode, 0, OBD_OBJECT_EOF); /* if restore registration failed, no restart, * we will return -ENODATA */ @@ -335,7 +336,7 @@ static void vvp_io_fini(const struct lu_env *env, const struct cl_io_slice *ios) __u32 gen = 0; /* check layout version */ - ll_layout_refresh(vvp_object_inode(obj), &gen); + ll_layout_refresh(inode, &gen); io->ci_need_restart = vio->vui_layout_gen != gen; if (io->ci_need_restart) { CDEBUG(D_VFSTRACE, -- cgit v0.10.2 From b59d812d0021b4f76adb05452a382898a6e225dc Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Tue, 12 Apr 2016 16:14:11 -0400 Subject: staging: lustre: osc: osc_extent_wait() shouldn't be interruptible Otherwise it will hit the assertion at cl_lock.c: cl_lock.c:1967:discard_cb()) ASSERTION( (!(page->cp_type == CPT_CACHEABLE) || (!PageWriteback(cl_page_vmpage(env, page)))) ) failed: This is because in osc_lock_flush() we have to make sure the IO is finished before discarding the pages. Signed-off-by: Jinshan Xiong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2779 Reviewed-on: http://review.whamcloud.com/5419 Reviewed-by: Bobi Jam Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index 8263a85..43d8bcc 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -965,7 +965,7 @@ static int osc_extent_wait(const struct lu_env *env, struct osc_extent *ext, "%s: wait ext to %d timedout, recovery in progress?\n", osc_export(obj)->exp_obd->obd_name, state); - lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL); + lwi = LWI_INTR(NULL, NULL); rc = l_wait_event(ext->oe_waitq, extent_wait_cb(ext, state), &lwi); } -- cgit v0.10.2 From b3ffe666ca1a747ce399d7d0966a132235e40e66 Mon Sep 17 00:00:00 2001 From: Andrew Perepechko Date: Tue, 12 Apr 2016 16:14:12 -0400 Subject: staging: lustre: lprocfs: implement log2 using bitops This patch implements log2 using fls. Signed-off-by: Andrew Perepechko Reviewed-by: Alexander Boyko Reviewed-by: alexander_zarochentsev@xyratex.com Reviewed-by: Vitaly Fertman Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3496 Xyratex-bug-id: MRP-999 Reviewed-on: http://review.whamcloud.com/6757 Reviewed-by: John L. Hammond Reviewed-by: Bob Glossman Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c index 9824c88..b2f309d 100644 --- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c +++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c @@ -1472,10 +1472,10 @@ EXPORT_SYMBOL(lprocfs_oh_tally); void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value) { - unsigned int val; + unsigned int val = 0; - for (val = 0; ((1 << val) < value) && (val <= OBD_HIST_MAX); val++) - ; + if (likely(value != 0)) + val = min(fls(value - 1), OBD_HIST_MAX); lprocfs_oh_tally(oh, val); } -- cgit v0.10.2 From ad1daf47c98f524ed6a517486a10e4114b450ff8 Mon Sep 17 00:00:00 2001 From: Bruno Faccini Date: Tue, 12 Apr 2016 16:14:13 -0400 Subject: staging: lustre: lov: return minimal FIEMAP for released files Since st_blocks = NULL is returned for released files, FIEMAP should at least return a minimal mapping to make users aware that file contains data but it is not immediately available. This will make coreutils and tools such tar happy and have them presume file is sparse. Also, add a new test_228 in sanity-hsm to verify it works for "[cp,tar] --sparse" commands. Also fix a LBUG ("lov_fiemap()) ASSERTION( fm_local ) failed") likely to occur when no-object/ENOMEM conditions and also now when released. Signed-off-by: Bruno Faccini Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3864 Reviewed-on: http://review.whamcloud.com/7584 Reviewed-by: Andreas Dilger Reviewed-by: Aurelien Degremont Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c index 6d02914..2de9255 100644 --- a/drivers/staging/lustre/lustre/lov/lov_obd.c +++ b/drivers/staging/lustre/lustre/lov/lov_obd.c @@ -1732,6 +1732,27 @@ static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key, unsigned int buffer_size = FIEMAP_BUFFER_SIZE; if (!lsm_has_objects(lsm)) { + if (lsm && lsm_is_released(lsm) && (fm_key->fiemap.fm_start < + fm_key->oa.o_size)) { + /* + * released file, return a minimal FIEMAP if + * request fits in file-size. + */ + fiemap->fm_mapped_extents = 1; + fiemap->fm_extents[0].fe_logical = + fm_key->fiemap.fm_start; + if (fm_key->fiemap.fm_start + fm_key->fiemap.fm_length < + fm_key->oa.o_size) { + fiemap->fm_extents[0].fe_length = + fm_key->fiemap.fm_length; + } else { + fiemap->fm_extents[0].fe_length = + fm_key->oa.o_size - fm_key->fiemap.fm_start; + fiemap->fm_extents[0].fe_flags |= + (FIEMAP_EXTENT_UNKNOWN | + FIEMAP_EXTENT_LAST); + } + } rc = 0; goto out; } -- cgit v0.10.2 From 554f0724af5bab4b263ff3c2f0324db79e868aae Mon Sep 17 00:00:00 2001 From: Andriy Skulysh Date: Tue, 12 Apr 2016 16:14:14 -0400 Subject: staging: lustre: lov: Don't wait for active target with OBD_STATFS_NODELAY Patch for LU-631 which was landed before the upstream merge broke OBD_STATFS_NODELAY behaviour. It adds unnecessary delay while running df command with inactive OSTs. We shouldn't try to recover connection to OST in this case. Signed-off-by: Andriy Skulysh Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4010 Reviewed-on: http://review.whamcloud.com/7762 Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c index 8226ab2..4d7073e 100644 --- a/drivers/staging/lustre/lustre/lov/lov_request.c +++ b/drivers/staging/lustre/lustre/lov/lov_request.c @@ -715,12 +715,15 @@ int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo, struct lov_request *req; if (!lov->lov_tgts[i] || - (!lov_check_and_wait_active(lov, i) && - (oinfo->oi_flags & OBD_STATFS_NODELAY))) { + (oinfo->oi_flags & OBD_STATFS_NODELAY && + !lov->lov_tgts[i]->ltd_active)) { CDEBUG(D_HA, "lov idx %d inactive\n", i); continue; } + if (!lov->lov_tgts[i]->ltd_active) + lov_check_and_wait_active(lov, i); + /* skip targets that have been explicitly disabled by the * administrator */ -- cgit v0.10.2 From 1cc28b77798d48e31e5dc16cea4274eb52972fd4 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Tue, 12 Apr 2016 16:14:15 -0400 Subject: staging: lustre: hsm: permission checks for HSM ioctl operations In the LL_IOC_HSM_CT_START case of ll_dir_ioctl() require CAP_SYS_ADMIN, since the local handler for this ioctl may modify the global KUC table. Signed-off-by: John L. Hammond Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3866 Reviewed-on: http://review.whamcloud.com/7565 Reviewed-by: Aurelien Degremont Reviewed-by: Faccini Bruno Reviewed-by: Jinshan Xiong Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 1d5366b..b457c28 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -1843,6 +1843,9 @@ out_quotactl: return rc; } case LL_IOC_HSM_CT_START: + if (!capable(CFS_CAP_SYS_ADMIN)) + return -EPERM; + rc = copy_and_ioctl(cmd, sbi->ll_md_exp, (void __user *)arg, sizeof(struct lustre_kernelcomm)); return rc; -- cgit v0.10.2 From abe958236ff9f1a68becf4e1d27a6ceb8e10e2b7 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Tue, 12 Apr 2016 16:14:16 -0400 Subject: staging: lustre: hsm: don't use real suppgid In the MDC HSM handlers that do not pack a real suppgid, use -1 rather than 0 for the suppgid in mdt_body. Signed-off-by: John L. Hammond Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3866 Reviewed-on: http://review.whamcloud.com/7565 Reviewed-by: Aurelien Degremont Reviewed-by: Faccini Bruno Reviewed-by: Jinshan Xiong Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c index 5f1ac58..46e3a7506 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_request.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c @@ -1169,7 +1169,7 @@ static int mdc_ioc_hsm_progress(struct obd_export *exp, goto out; } - mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); + mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, -1, 0); /* Copy hsm_progress struct */ req_hpk = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_PROGRESS); @@ -1203,7 +1203,7 @@ static int mdc_ioc_hsm_ct_register(struct obd_import *imp, __u32 archives) goto out; } - mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); + mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, -1, 0); /* Copy hsm_progress struct */ archive_mask = req_capsule_client_get(&req->rq_pill, @@ -1278,7 +1278,7 @@ static int mdc_ioc_hsm_ct_unregister(struct obd_import *imp) goto out; } - mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); + mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, -1, 0); ptlrpc_request_set_replen(req); @@ -1395,7 +1395,7 @@ static int mdc_ioc_hsm_request(struct obd_export *exp, return rc; } - mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); + mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, -1, 0); /* Copy hsm_request struct */ req_hr = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_REQUEST); -- cgit v0.10.2 From 610cc3a49fdc563395bc3e65fa4a6aa8f97651eb Mon Sep 17 00:00:00 2001 From: Iban Rodriguez Date: Tue, 12 Apr 2016 23:08:34 +0200 Subject: Staging: lustre: Make lustre_profile_list static Variable lustre_profile_list is only used inside obd_config.c, better make it static Signed-off-by: Iban Rodriguez Acked-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c index 318a2e3..ae38844 100644 --- a/drivers/staging/lustre/lustre/obdclass/obd_config.c +++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c @@ -606,7 +606,7 @@ static int class_del_conn(struct obd_device *obd, struct lustre_cfg *lcfg) return rc; } -LIST_HEAD(lustre_profile_list); +static LIST_HEAD(lustre_profile_list); struct lustre_profile *class_get_profile(const char *prof) { -- cgit v0.10.2 From c3558553597fb946e9192e13ca23b352f90133ae Mon Sep 17 00:00:00 2001 From: Jinshan Xiong Date: Wed, 27 Apr 2016 18:20:53 -0400 Subject: staging: lustre: llite: reset writeback index in ll_writepages Otherwise after one round the writeback index will become beyond the file size and ->writepages() turns into an empty operation. Also, a safety guard is added to limit the wait time for grant to 10 minutes(take recovery into consideration) at maximum in the osc_enter_cache() function. Otherwise, EDQUOT will be returned to the applications to start sync write. Signed-off-by: Jinshan Xiong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3416 Reviewed-on: http://review.whamcloud.com/6554 Reviewed-by: Bobi Jam Reviewed-by: Niu Yawei Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c index 4ddf8b3..3363977 100644 --- a/drivers/staging/lustre/lustre/llite/rw.c +++ b/drivers/staging/lustre/lustre/llite/rw.c @@ -1105,8 +1105,9 @@ int ll_writepages(struct address_space *mapping, struct writeback_control *wbc) if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0)) { if (end == OBD_OBJECT_EOF) - end = i_size_read(inode); - mapping->writeback_index = (end >> PAGE_SHIFT) + 1; + mapping->writeback_index = 0; + else + mapping->writeback_index = (end >> PAGE_SHIFT) + 1; } return result; } diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index 43d8bcc..dccd309 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -1383,15 +1383,19 @@ static int osc_completion(const struct lu_env *env, struct osc_async_page *oap, return 0; } -#define OSC_DUMP_GRANT(cli, fmt, args...) do { \ +#define OSC_DUMP_GRANT(lvl, cli, fmt, args...) do { \ struct client_obd *__tmp = (cli); \ - CDEBUG(D_CACHE, "%s: { dirty: %ld/%ld dirty_pages: %d/%d " \ - "dropped: %ld avail: %ld, reserved: %ld, flight: %d } " fmt, \ + CDEBUG(lvl, "%s: grant { dirty: %ld/%ld dirty_pages: %d/%d " \ + "dropped: %ld avail: %ld, reserved: %ld, flight: %d } " \ + "lru {in list: %d, left: %d, waiters: %d }" fmt, \ __tmp->cl_import->imp_obd->obd_name, \ __tmp->cl_dirty, __tmp->cl_dirty_max, \ atomic_read(&obd_dirty_pages), obd_max_dirty_pages, \ __tmp->cl_lost_grant, __tmp->cl_avail_grant, \ - __tmp->cl_reserved_grant, __tmp->cl_w_in_flight, ##args); \ + __tmp->cl_reserved_grant, __tmp->cl_w_in_flight, \ + atomic_read(&__tmp->cl_lru_in_list), \ + atomic_read(&__tmp->cl_lru_busy), \ + atomic_read(&__tmp->cl_lru_shrinkers), ##args); \ } while (0) /* caller must hold loi_list_lock */ @@ -1531,7 +1535,7 @@ static int osc_enter_cache_try(struct client_obd *cli, { int rc; - OSC_DUMP_GRANT(cli, "need:%d.\n", bytes); + OSC_DUMP_GRANT(D_CACHE, cli, "need:%d.\n", bytes); rc = osc_reserve_grant(cli, bytes); if (rc < 0) @@ -1576,10 +1580,11 @@ static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli, struct osc_object *osc = oap->oap_obj; struct lov_oinfo *loi = osc->oo_oinfo; struct osc_cache_waiter ocw; - struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL); + struct l_wait_info lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(600), NULL, + LWI_ON_SIGNAL_NOOP, NULL); int rc = -EDQUOT; - OSC_DUMP_GRANT(cli, "need:%d.\n", bytes); + OSC_DUMP_GRANT(D_CACHE, cli, "need:%d.\n", bytes); spin_lock(&cli->cl_loi_list_lock); @@ -1623,8 +1628,15 @@ static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli, spin_lock(&cli->cl_loi_list_lock); - /* l_wait_event is interrupted by signal */ + /* l_wait_event is interrupted by signal, or timed out */ if (rc < 0) { + if (rc == -ETIMEDOUT) { + OSC_DUMP_GRANT(D_ERROR, cli, + "try to reserve %d.\n", bytes); + osc_extent_tree_dump(D_ERROR, osc); + rc = -EDQUOT; + } + list_del_init(&ocw.ocw_entry); goto out; } @@ -1641,7 +1653,7 @@ static int osc_enter_cache(const struct lu_env *env, struct client_obd *cli, } out: spin_unlock(&cli->cl_loi_list_lock); - OSC_DUMP_GRANT(cli, "returned %d.\n", rc); + OSC_DUMP_GRANT(D_CACHE, cli, "returned %d.\n", rc); return rc; } @@ -3014,7 +3026,7 @@ int osc_cache_writeback_range(const struct lu_env *env, struct osc_object *obj, result = rc; } - OSC_IO_DEBUG(obj, "cache page out.\n"); + OSC_IO_DEBUG(obj, "pageout [%lu, %lu], %d.\n", start, end, result); return result; } -- cgit v0.10.2 From ac7af34e6776c09fda26bc224c53a3870cd6af89 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Wed, 27 Apr 2016 18:20:54 -0400 Subject: staging: lustre: llite: NFS reexport issue Suppress erroneous/confusing messages when NFS is out of sync and requests old data. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4050 Reviewed-on: http://review.whamcloud.com/7850 Reviewed-by: Andreas Dilger Reviewed-by: Bob Glossman Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/llite_nfs.c b/drivers/staging/lustre/lustre/llite/llite_nfs.c index 193aab8..2c26815 100644 --- a/drivers/staging/lustre/lustre/llite/llite_nfs.c +++ b/drivers/staging/lustre/lustre/llite/llite_nfs.c @@ -119,7 +119,7 @@ struct inode *search_inode_for_lustre(struct super_block *sb, rc = md_getattr(sbi->ll_md_exp, op_data, &req); kfree(op_data); if (rc) { - CERROR("can't get object attrs, fid "DFID", rc %d\n", + CDEBUG(D_INFO, "can't get object attrs, fid "DFID", rc %d\n", PFID(fid), rc); return ERR_PTR(rc); } -- cgit v0.10.2 From 7f937beb0ad24bd3e14dd943c04130a60ffcd0b9 Mon Sep 17 00:00:00 2001 From: Wang Di Date: Wed, 27 Apr 2016 18:20:55 -0400 Subject: staging: lustre: obdclass: add LCT_SERVER_SESSION for server session Add LCT_SERVER_SESSION for server session, and separate the server session flag from LCT_SESSION, so to avoid allocating session info for client stack for each server request, if client and server are on the same node. Signed-off-by: Wang Di Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3806 Reviewed-on: http://review.whamcloud.com/7412 Reviewed-by: John L. Hammond Reviewed-by: Mike Pershin Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h index b5b0c81..a27e76f 100644 --- a/drivers/staging/lustre/lustre/include/lu_object.h +++ b/drivers/staging/lustre/lustre/include/lu_object.h @@ -1006,6 +1006,10 @@ enum lu_context_tag { */ LCT_LOCAL = 1 << 7, /** + * session for server thread + **/ + LCT_SERVER_SESSION = BIT(8), + /** * Set when at least one of keys, having values in this context has * non-NULL lu_context_key::lct_exit() method. This is used to * optimize lu_context_exit() call. diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h index 40f7a23..32863bc 100644 --- a/drivers/staging/lustre/lustre/include/obd_class.h +++ b/drivers/staging/lustre/lustre/include/obd_class.h @@ -477,7 +477,7 @@ static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg) struct lu_context session_ctx; struct lu_env env; - lu_context_init(&session_ctx, LCT_SESSION); + lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION); session_ctx.lc_thread = NULL; lu_context_enter(&session_ctx); diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c index 1bbd1d3..fc2632f 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/service.c +++ b/drivers/staging/lustre/lustre/ptlrpc/service.c @@ -1649,7 +1649,8 @@ ptlrpc_server_handle_request(struct ptlrpc_service_part *svcpt, at_get(&svcpt->scp_at_estimate)); } - rc = lu_context_init(&request->rq_session, LCT_SESSION | LCT_NOREF); + rc = lu_context_init(&request->rq_session, LCT_SERVER_SESSION | + LCT_NOREF); if (rc) { CERROR("Failure to initialize session: %d\n", rc); goto out_req; -- cgit v0.10.2 From 0fdd2b8d7cec9fc4e4b6d0e7db2de98148ca37ba Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Wed, 27 Apr 2016 18:20:56 -0400 Subject: staging: lustre: lmv: kernel crash due to misconfigured MDT There are few places with access to lmv->tgts[] without check for NULL. Usually it may happens when MDT configured starting from index 1 instead of 0. For example: mkfs.lustre --reformat --mgs --mdt --index=1 /dev/sdd1 Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4098 Reviewed-on: http://review.whamcloud.com/7941 Reviewed-by: Andreas Dilger Reviewed-by: Alex Zhuravlev Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c index 2f6457f..9e31f6b 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c +++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c @@ -132,8 +132,9 @@ static int lmv_set_mdc_active(struct lmv_obd *lmv, struct obd_uuid *uuid, static struct obd_uuid *lmv_get_uuid(struct obd_export *exp) { struct lmv_obd *lmv = &exp->exp_obd->u.lmv; + struct lmv_tgt_desc *tgt = lmv->tgts[0]; - return obd_get_uuid(lmv->tgts[0]->ltd_exp); + return tgt ? obd_get_uuid(tgt->ltd_exp) : NULL; } static int lmv_notify(struct obd_device *obd, struct obd_device *watched, @@ -249,7 +250,6 @@ static int lmv_connect(const struct lu_env *env, static void lmv_set_timeouts(struct obd_device *obd) { - struct lmv_tgt_desc *tgt; struct lmv_obd *lmv; int i; @@ -261,8 +261,10 @@ static void lmv_set_timeouts(struct obd_device *obd) return; for (i = 0; i < lmv->desc.ld_tgt_count; i++) { + struct lmv_tgt_desc *tgt = lmv->tgts[i]; + tgt = lmv->tgts[i]; - if (!tgt || !tgt->ltd_exp || tgt->ltd_active == 0) + if (!tgt || !tgt->ltd_exp || !tgt->ltd_active) continue; obd_set_info_async(NULL, tgt->ltd_exp, sizeof(KEY_INTERMDS), @@ -302,13 +304,14 @@ static int lmv_init_ea_size(struct obd_export *exp, int easize, return 0; for (i = 0; i < lmv->desc.ld_tgt_count; i++) { - if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp || - lmv->tgts[i]->ltd_active == 0) { + struct lmv_tgt_desc *tgt = lmv->tgts[i]; + + if (!tgt || !tgt->ltd_exp || !tgt->ltd_active) { CWARN("%s: NULL export for %d\n", obd->obd_name, i); continue; } - rc = md_init_ea_size(lmv->tgts[i]->ltd_exp, easize, def_easize, + rc = md_init_ea_size(tgt->ltd_exp, easize, def_easize, cookiesize, def_cookiesize); if (rc) { CERROR("%s: obd_init_ea_size() failed on MDT target %d: rc = %d\n", @@ -534,6 +537,15 @@ int lmv_check_connect(struct obd_device *obd) return -EINVAL; } + LASSERT(lmv->tgts); + + if (!lmv->tgts[0]) { + mutex_unlock(&lmv->lmv_init_mutex); + CERROR("%s: no target configured for index 0.\n", + obd->obd_name); + return -EINVAL; + } + CDEBUG(D_CONFIG, "Time to connect %s to %s\n", lmv->cluuid.uuid, obd->obd_name); @@ -796,6 +808,11 @@ static int lmv_hsm_ct_unregister(struct lmv_obd *lmv, unsigned int cmd, int len, /* unregister request (call from llapi_hsm_copytool_fini) */ for (i = 0; i < lmv->desc.ld_tgt_count; i++) { + struct lmv_tgt_desc *tgt = lmv->tgts[i]; + + if (!tgt || !tgt->ltd_exp) + continue; + /* best effort: try to clean as much as possible * (continue on error) */ @@ -825,20 +842,28 @@ static int lmv_hsm_ct_register(struct lmv_obd *lmv, unsigned int cmd, int len, * except if it because of inactive target. */ for (i = 0; i < lmv->desc.ld_tgt_count; i++) { - err = obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp, len, lk, uarg); + struct lmv_tgt_desc *tgt = lmv->tgts[i]; + + if (!tgt || !tgt->ltd_exp) + continue; + + err = obd_iocontrol(cmd, tgt->ltd_exp, len, lk, uarg); if (err) { - if (lmv->tgts[i]->ltd_active) { + if (tgt->ltd_active) { /* permanent error */ CERROR("error: iocontrol MDC %s on MDTidx %d cmd %x: err = %d\n", - lmv->tgts[i]->ltd_uuid.uuid, - i, cmd, err); + tgt->ltd_uuid.uuid, i, cmd, err); rc = err; lk->lk_flags |= LK_FLG_STOP; /* unregister from previous MDS */ - for (j = 0; j < i; j++) - obd_iocontrol(cmd, - lmv->tgts[j]->ltd_exp, - len, lk, uarg); + for (j = 0; j < i; j++) { + tgt = lmv->tgts[j]; + + if (!tgt || !tgt->ltd_exp) + continue; + obd_iocontrol(cmd, tgt->ltd_exp, len, + lk, uarg); + } return rc; } /* else: transient error. @@ -877,6 +902,7 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, { struct obd_device *obddev = class_exp2obd(exp); struct lmv_obd *lmv = &obddev->u.lmv; + struct lmv_tgt_desc *tgt = NULL; int i = 0; int rc = 0; int set = 0; @@ -896,10 +922,11 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, if (index >= count) return -ENODEV; - if (!lmv->tgts[index] || lmv->tgts[index]->ltd_active == 0) + tgt = lmv->tgts[index]; + if (!tgt || !tgt->ltd_active) return -ENODATA; - mdc_obd = class_exp2obd(lmv->tgts[index]->ltd_exp); + mdc_obd = class_exp2obd(tgt->ltd_exp); if (!mdc_obd) return -EINVAL; @@ -909,7 +936,7 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, (int)sizeof(struct obd_uuid)))) return -EFAULT; - rc = obd_statfs(NULL, lmv->tgts[index]->ltd_exp, &stat_buf, + rc = obd_statfs(NULL, tgt->ltd_exp, &stat_buf, cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), 0); if (rc) @@ -922,7 +949,6 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, } case OBD_IOC_QUOTACTL: { struct if_quotactl *qctl = karg; - struct lmv_tgt_desc *tgt = NULL; struct obd_quotactl *oqctl; if (qctl->qc_valid == QC_MDTIDX) { @@ -975,18 +1001,18 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, if (icc->icc_mdtindex >= count) return -ENODEV; - if (!lmv->tgts[icc->icc_mdtindex] || - !lmv->tgts[icc->icc_mdtindex]->ltd_exp || - lmv->tgts[icc->icc_mdtindex]->ltd_active == 0) + tgt = lmv->tgts[icc->icc_mdtindex]; + if (!tgt || !tgt->ltd_exp || !tgt->ltd_active) return -ENODEV; - rc = obd_iocontrol(cmd, lmv->tgts[icc->icc_mdtindex]->ltd_exp, - sizeof(*icc), icc, NULL); + rc = obd_iocontrol(cmd, tgt->ltd_exp, sizeof(*icc), icc, NULL); break; } case LL_IOC_GET_CONNECT_FLAGS: { - if (!lmv->tgts[0]) + tgt = lmv->tgts[0]; + + if (!tgt || !tgt->ltd_exp) return -ENODATA; - rc = obd_iocontrol(cmd, lmv->tgts[0]->ltd_exp, len, karg, uarg); + rc = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg); break; } case OBD_IOC_FID2PATH: { @@ -997,7 +1023,6 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, case LL_IOC_HSM_STATE_SET: case LL_IOC_HSM_ACTION: { struct md_op_data *op_data = karg; - struct lmv_tgt_desc *tgt; tgt = lmv_find_target(lmv, &op_data->op_fid1); if (IS_ERR(tgt)) @@ -1011,7 +1036,6 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, } case LL_IOC_HSM_PROGRESS: { const struct hsm_progress_kernel *hpk = karg; - struct lmv_tgt_desc *tgt; tgt = lmv_find_target(lmv, &hpk->hpk_fid); if (IS_ERR(tgt)) @@ -1021,7 +1045,6 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, } case LL_IOC_HSM_REQUEST: { struct hsm_user_request *hur = karg; - struct lmv_tgt_desc *tgt; unsigned int reqcount = hur->hur_request.hr_itemcount; if (reqcount == 0) @@ -1044,7 +1067,11 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, int rc1; struct hsm_user_request *req; - nr = lmv_hsm_req_count(lmv, hur, lmv->tgts[i]); + tgt = lmv->tgts[i]; + if (!tgt || !tgt->ltd_exp) + continue; + + nr = lmv_hsm_req_count(lmv, hur, tgt); if (nr == 0) /* nothing for this MDS */ continue; @@ -1056,10 +1083,10 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, if (!req) return -ENOMEM; - lmv_hsm_req_build(lmv, hur, lmv->tgts[i], req); + lmv_hsm_req_build(lmv, hur, tgt, req); - rc1 = obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp, - reqlen, req, uarg); + rc1 = obd_iocontrol(cmd, tgt->ltd_exp, reqlen, + req, uarg); if (rc1 != 0 && rc == 0) rc = rc1; kvfree(req); @@ -1103,22 +1130,21 @@ static int lmv_iocontrol(unsigned int cmd, struct obd_export *exp, struct obd_device *mdc_obd; int err; - if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp) + tgt = lmv->tgts[i]; + if (!tgt || !tgt->ltd_exp) continue; /* ll_umount_begin() sets force flag but for lmv, not * mdc. Let's pass it through */ - mdc_obd = class_exp2obd(lmv->tgts[i]->ltd_exp); + mdc_obd = class_exp2obd(tgt->ltd_exp); mdc_obd->obd_force = obddev->obd_force; - err = obd_iocontrol(cmd, lmv->tgts[i]->ltd_exp, len, - karg, uarg); + err = obd_iocontrol(cmd, tgt->ltd_exp, len, karg, uarg); if (err == -ENODATA && cmd == OBD_IOC_POLL_QUOTACHECK) { return err; } else if (err) { - if (lmv->tgts[i]->ltd_active) { + if (tgt->ltd_active) { CERROR("error: iocontrol MDC %s on MDTidx %d cmd %x: err = %d\n", - lmv->tgts[i]->ltd_uuid.uuid, - i, cmd, err); + tgt->ltd_uuid.uuid, i, cmd, err); if (!rc) rc = err; } @@ -2269,7 +2295,6 @@ static int lmv_get_info(const struct lu_env *env, struct obd_export *exp, lmv = &obd->u.lmv; if (keylen >= strlen("remote_flag") && !strcmp(key, "remote_flag")) { - struct lmv_tgt_desc *tgt; int i; rc = lmv_check_connect(obd); @@ -2278,7 +2303,8 @@ static int lmv_get_info(const struct lu_env *env, struct obd_export *exp, LASSERT(*vallen == sizeof(__u32)); for (i = 0; i < lmv->desc.ld_tgt_count; i++) { - tgt = lmv->tgts[i]; + struct lmv_tgt_desc *tgt = lmv->tgts[i]; + /* * All tgts should be connected when this gets called. */ @@ -2467,12 +2493,13 @@ static int lmv_cancel_unused(struct obd_export *exp, const struct lu_fid *fid, LASSERT(fid); for (i = 0; i < lmv->desc.ld_tgt_count; i++) { - if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp || - lmv->tgts[i]->ltd_active == 0) + struct lmv_tgt_desc *tgt = lmv->tgts[i]; + + if (!tgt || !tgt->ltd_exp || !tgt->ltd_active) continue; - err = md_cancel_unused(lmv->tgts[i]->ltd_exp, fid, - policy, mode, flags, opaque); + err = md_cancel_unused(tgt->ltd_exp, fid, policy, mode, flags, + opaque); if (!rc) rc = err; } @@ -2483,9 +2510,13 @@ static int lmv_set_lock_data(struct obd_export *exp, __u64 *lockh, void *data, __u64 *bits) { struct lmv_obd *lmv = &exp->exp_obd->u.lmv; + struct lmv_tgt_desc *tgt = lmv->tgts[0]; int rc; - rc = md_set_lock_data(lmv->tgts[0]->ltd_exp, lockh, data, bits); + if (!tgt || !tgt->ltd_exp) + return -EINVAL; + + rc = md_set_lock_data(tgt->ltd_exp, lockh, data, bits); return rc; } @@ -2510,12 +2541,13 @@ static enum ldlm_mode lmv_lock_match(struct obd_export *exp, __u64 flags, * one fid was created in. */ for (i = 0; i < lmv->desc.ld_tgt_count; i++) { - if (!lmv->tgts[i] || !lmv->tgts[i]->ltd_exp || - lmv->tgts[i]->ltd_active == 0) + struct lmv_tgt_desc *tgt = lmv->tgts[i]; + + if (!tgt || !tgt->ltd_exp || !tgt->ltd_active) continue; - rc = md_lock_match(lmv->tgts[i]->ltd_exp, flags, fid, - type, policy, mode, lockh); + rc = md_lock_match(tgt->ltd_exp, flags, fid, type, policy, mode, + lockh); if (rc) return rc; } @@ -2530,18 +2562,24 @@ static int lmv_get_lustre_md(struct obd_export *exp, struct lustre_md *md) { struct lmv_obd *lmv = &exp->exp_obd->u.lmv; + struct lmv_tgt_desc *tgt = lmv->tgts[0]; - return md_get_lustre_md(lmv->tgts[0]->ltd_exp, req, dt_exp, md_exp, md); + if (!tgt || !tgt->ltd_exp) + return -EINVAL; + return md_get_lustre_md(tgt->ltd_exp, req, dt_exp, md_exp, md); } static int lmv_free_lustre_md(struct obd_export *exp, struct lustre_md *md) { struct obd_device *obd = exp->exp_obd; struct lmv_obd *lmv = &obd->u.lmv; + struct lmv_tgt_desc *tgt = lmv->tgts[0]; if (md->mea) obd_free_memmd(exp, (void *)&md->mea); - return md_free_lustre_md(lmv->tgts[0]->ltd_exp, md); + if (!tgt || !tgt->ltd_exp) + return -EINVAL; + return md_free_lustre_md(tgt->ltd_exp, md); } static int lmv_set_open_replay_data(struct obd_export *exp, @@ -2650,7 +2688,8 @@ static int lmv_quotactl(struct obd_device *unused, struct obd_export *exp, int rc = 0, i; __u64 curspace, curinodes; - if (!lmv->desc.ld_tgt_count || !tgt->ltd_active) { + if (!tgt || !tgt->ltd_exp || !tgt->ltd_active || + !lmv->desc.ld_tgt_count) { CERROR("master lmv inactive\n"); return -EIO; } @@ -2666,12 +2705,8 @@ static int lmv_quotactl(struct obd_device *unused, struct obd_export *exp, tgt = lmv->tgts[i]; - if (!tgt || !tgt->ltd_exp || tgt->ltd_active == 0) + if (!tgt || !tgt->ltd_exp || !tgt->ltd_active) continue; - if (!tgt->ltd_active) { - CDEBUG(D_HA, "mdt %d is inactive.\n", i); - continue; - } err = obd_quotactl(tgt->ltd_exp, oqctl); if (err) { -- cgit v0.10.2 From 5a9a80baa78e730a27ea68e9ac8adbd86a23ec22 Mon Sep 17 00:00:00 2001 From: Bruce Korb Date: Wed, 27 Apr 2016 18:20:57 -0400 Subject: staging: lustre: ldlm: use accessor macros for l_flags Convert most of the ldlm lock's l_flags references from direct bit twiddling to using bit specific macros. A few multi-bit operations are left as an exercise for the reader. The changes are mostly in ldlm, but also in llite, osc and quota. Also add a multi-bit (mask) test. Signed-off-by: Bruce Korb Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2906 Reviewed-by: Keith Mannthey Reviewed-on: http://review.whamcloud.com/7963 Reviewed-by: Doug Oucharek Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h index 7f2ba2f..aff0904 100644 --- a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h +++ b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h @@ -381,6 +381,9 @@ /** test for ldlm_lock flag bit set */ #define LDLM_TEST_FLAG(_l, _b) (((_l)->l_flags & (_b)) != 0) +/** multi-bit test: are any of mask bits set? */ +#define LDLM_HAVE_MASK(_l, _m) ((_l)->l_flags & LDLM_FL_##_m##_MASK) + /** set a ldlm_lock flag bit */ #define LDLM_SET_FLAG(_l, _b) ((_l)->l_flags |= (_b)) diff --git a/drivers/staging/lustre/lustre/ldlm/l_lock.c b/drivers/staging/lustre/lustre/ldlm/l_lock.c index e5d1344..621323f 100644 --- a/drivers/staging/lustre/lustre/ldlm/l_lock.c +++ b/drivers/staging/lustre/lustre/ldlm/l_lock.c @@ -54,7 +54,7 @@ struct ldlm_resource *lock_res_and_lock(struct ldlm_lock *lock) lock_res(lock->l_resource); - lock->l_flags |= LDLM_FL_RES_LOCKED; + ldlm_set_res_locked(lock); return lock->l_resource; } EXPORT_SYMBOL(lock_res_and_lock); @@ -65,7 +65,7 @@ EXPORT_SYMBOL(lock_res_and_lock); void unlock_res_and_lock(struct ldlm_lock *lock) { /* on server-side resource of lock doesn't change */ - lock->l_flags &= ~LDLM_FL_RES_LOCKED; + ldlm_clear_res_locked(lock); unlock_res(lock->l_resource); spin_unlock(&lock->l_lock); diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c index a803e20..cf1f178 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c @@ -75,12 +75,12 @@ __u64 ldlm_extent_shift_kms(struct ldlm_lock *lock, __u64 old_kms) * just after we finish and take our lock into account in its * calculation of the kms */ - lock->l_flags |= LDLM_FL_KMS_IGNORE; + ldlm_set_kms_ignore(lock); list_for_each(tmp, &res->lr_granted) { lck = list_entry(tmp, struct ldlm_lock, l_res_link); - if (lck->l_flags & LDLM_FL_KMS_IGNORE) + if (ldlm_is_kms_ignore(lck)) continue; if (lck->l_policy_data.l_extent.end >= old_kms) diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c index 5102d78..349bfcc 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c @@ -101,8 +101,7 @@ ldlm_flock_destroy(struct ldlm_lock *lock, enum ldlm_mode mode, __u64 flags) LASSERT(hlist_unhashed(&lock->l_exp_flock_hash)); list_del_init(&lock->l_res_link); - if (flags == LDLM_FL_WAIT_NOREPROC && - !(lock->l_flags & LDLM_FL_FAILED)) { + if (flags == LDLM_FL_WAIT_NOREPROC && !ldlm_is_failed(lock)) { /* client side - set a flag to prevent sending a CANCEL */ lock->l_flags |= LDLM_FL_LOCAL_ONLY | LDLM_FL_CBPENDING; @@ -436,7 +435,7 @@ ldlm_flock_interrupted_wait(void *data) lock_res_and_lock(lock); /* client side - set flag to prevent lock from being put on LRU list */ - lock->l_flags |= LDLM_FL_CBPENDING; + ldlm_set_cbpending(lock); unlock_res_and_lock(lock); } @@ -520,7 +519,7 @@ ldlm_flock_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data) granted: OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_CP_CB_WAIT, 10); - if (lock->l_flags & LDLM_FL_FAILED) { + if (ldlm_is_failed(lock)) { LDLM_DEBUG(lock, "client-side enqueue waking up: failed"); return -EIO; } @@ -533,7 +532,7 @@ granted: * Protect against race where lock could have been just destroyed * due to overlap in ldlm_process_flock_lock(). */ - if (lock->l_flags & LDLM_FL_DESTROYED) { + if (ldlm_is_destroyed(lock)) { unlock_res_and_lock(lock); LDLM_DEBUG(lock, "client-side enqueue waking up: destroyed"); return 0; @@ -542,7 +541,7 @@ granted: /* ldlm_lock_enqueue() has already placed lock on the granted list. */ list_del_init(&lock->l_res_link); - if (lock->l_flags & LDLM_FL_FLOCK_DEADLOCK) { + if (ldlm_is_flock_deadlock(lock)) { LDLM_DEBUG(lock, "client-side enqueue deadlock received"); rc = -EDEADLK; } else if (flags & LDLM_FL_TEST_LOCK) { diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h index ba643e6..32f227f 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h @@ -305,9 +305,10 @@ static inline int is_granted_or_cancelled(struct ldlm_lock *lock) int ret = 0; lock_res_and_lock(lock); - if (((lock->l_req_mode == lock->l_granted_mode) && - !(lock->l_flags & LDLM_FL_CP_REQD)) || - (lock->l_flags & (LDLM_FL_FAILED | LDLM_FL_CANCEL))) + if ((lock->l_req_mode == lock->l_granted_mode) && + !ldlm_is_cp_reqd(lock)) + ret = 1; + else if (ldlm_is_failed(lock) || ldlm_is_cancel(lock)) ret = 1; unlock_res_and_lock(lock); diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c index 6c27b23..bff94ea 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c @@ -185,7 +185,7 @@ void ldlm_lock_put(struct ldlm_lock *lock) "final lock_put on destroyed lock, freeing it."); res = lock->l_resource; - LASSERT(lock->l_flags & LDLM_FL_DESTROYED); + LASSERT(ldlm_is_destroyed(lock)); LASSERT(list_empty(&lock->l_res_link)); LASSERT(list_empty(&lock->l_pending_chain)); @@ -262,8 +262,7 @@ static void ldlm_lock_add_to_lru_nolock(struct ldlm_lock *lock) LASSERT(list_empty(&lock->l_lru)); LASSERT(lock->l_resource->lr_type != LDLM_FLOCK); list_add_tail(&lock->l_lru, &ns->ns_unused_list); - if (lock->l_flags & LDLM_FL_SKIPPED) - lock->l_flags &= ~LDLM_FL_SKIPPED; + ldlm_clear_skipped(lock); LASSERT(ns->ns_nr_unused >= 0); ns->ns_nr_unused++; } @@ -328,11 +327,11 @@ static int ldlm_lock_destroy_internal(struct ldlm_lock *lock) LBUG(); } - if (lock->l_flags & LDLM_FL_DESTROYED) { + if (ldlm_is_destroyed(lock)) { LASSERT(list_empty(&lock->l_lru)); return 0; } - lock->l_flags |= LDLM_FL_DESTROYED; + ldlm_set_destroyed(lock); if (lock->l_export && lock->l_export->exp_lock_hash) { /* NB: it's safe to call cfs_hash_del() even lock isn't @@ -554,7 +553,7 @@ struct ldlm_lock *__ldlm_handle2lock(const struct lustre_handle *handle, /* It's unlikely but possible that someone marked the lock as * destroyed after we did handle2object on it */ - if (flags == 0 && ((lock->l_flags & LDLM_FL_DESTROYED) == 0)) { + if (flags == 0 && !ldlm_is_destroyed(lock)) { lu_ref_add(&lock->l_reference, "handle", current); return lock; } @@ -564,21 +563,22 @@ struct ldlm_lock *__ldlm_handle2lock(const struct lustre_handle *handle, LASSERT(lock->l_resource); lu_ref_add_atomic(&lock->l_reference, "handle", current); - if (unlikely(lock->l_flags & LDLM_FL_DESTROYED)) { + if (unlikely(ldlm_is_destroyed(lock))) { unlock_res_and_lock(lock); CDEBUG(D_INFO, "lock already destroyed: lock %p\n", lock); LDLM_LOCK_PUT(lock); return NULL; } - if (flags && (lock->l_flags & flags)) { - unlock_res_and_lock(lock); - LDLM_LOCK_PUT(lock); - return NULL; - } + if (flags) { + if (lock->l_flags & flags) { + unlock_res_and_lock(lock); + LDLM_LOCK_PUT(lock); + return NULL; + } - if (flags) lock->l_flags |= flags; + } unlock_res_and_lock(lock); return lock; @@ -609,14 +609,14 @@ EXPORT_SYMBOL(ldlm_lock2desc); static void ldlm_add_bl_work_item(struct ldlm_lock *lock, struct ldlm_lock *new, struct list_head *work_list) { - if ((lock->l_flags & LDLM_FL_AST_SENT) == 0) { + if (!ldlm_is_ast_sent(lock)) { LDLM_DEBUG(lock, "lock incompatible; sending blocking AST."); - lock->l_flags |= LDLM_FL_AST_SENT; + ldlm_set_ast_sent(lock); /* If the enqueuing client said so, tell the AST recipient to * discard dirty data, rather than writing back. */ - if (new->l_flags & LDLM_FL_AST_DISCARD_DATA) - lock->l_flags |= LDLM_FL_DISCARD_DATA; + if (ldlm_is_ast_discard_data(new)) + ldlm_set_discard_data(lock); LASSERT(list_empty(&lock->l_bl_ast)); list_add(&lock->l_bl_ast, work_list); LDLM_LOCK_GET(lock); @@ -631,8 +631,8 @@ static void ldlm_add_bl_work_item(struct ldlm_lock *lock, struct ldlm_lock *new, static void ldlm_add_cp_work_item(struct ldlm_lock *lock, struct list_head *work_list) { - if ((lock->l_flags & LDLM_FL_CP_REQD) == 0) { - lock->l_flags |= LDLM_FL_CP_REQD; + if (!ldlm_is_cp_reqd(lock)) { + ldlm_set_cp_reqd(lock); LDLM_DEBUG(lock, "lock granted; sending completion AST."); LASSERT(list_empty(&lock->l_cp_ast)); list_add(&lock->l_cp_ast, work_list); @@ -714,7 +714,7 @@ int ldlm_lock_addref_try(struct lustre_handle *lockh, __u32 mode) if (lock) { lock_res_and_lock(lock); if (lock->l_readers != 0 || lock->l_writers != 0 || - !(lock->l_flags & LDLM_FL_CBPENDING)) { + !ldlm_is_cbpending(lock)) { ldlm_lock_addref_internal_nolock(lock, mode); result = 0; } @@ -780,17 +780,17 @@ void ldlm_lock_decref_internal(struct ldlm_lock *lock, __u32 mode) ldlm_lock_decref_internal_nolock(lock, mode); - if (lock->l_flags & LDLM_FL_LOCAL && + if (ldlm_is_local(lock) && !lock->l_readers && !lock->l_writers) { /* If this is a local lock on a server namespace and this was * the last reference, cancel the lock. */ CDEBUG(D_INFO, "forcing cancel of local lock\n"); - lock->l_flags |= LDLM_FL_CBPENDING; + ldlm_set_cbpending(lock); } if (!lock->l_readers && !lock->l_writers && - (lock->l_flags & LDLM_FL_CBPENDING)) { + ldlm_is_cbpending(lock)) { /* If we received a blocked AST and this was the last reference, * run the callback. */ @@ -801,15 +801,14 @@ void ldlm_lock_decref_internal(struct ldlm_lock *lock, __u32 mode) ldlm_lock_remove_from_lru(lock); unlock_res_and_lock(lock); - if (lock->l_flags & LDLM_FL_FAIL_LOC) + if (ldlm_is_fail_loc(lock)) OBD_RACE(OBD_FAIL_LDLM_CP_BL_RACE); - if ((lock->l_flags & LDLM_FL_ATOMIC_CB) || + if (ldlm_is_atomic_cb(lock) || ldlm_bl_to_thread_lock(ns, NULL, lock) != 0) ldlm_handle_bl_callback(ns, NULL, lock); } else if (!lock->l_readers && !lock->l_writers && - !(lock->l_flags & LDLM_FL_NO_LRU) && - !(lock->l_flags & LDLM_FL_BL_AST)) { + !ldlm_is_no_lru(lock) && !ldlm_is_bl_ast(lock)) { LDLM_DEBUG(lock, "add lock into lru list"); /* If this is a client-side namespace and this was the last @@ -818,7 +817,7 @@ void ldlm_lock_decref_internal(struct ldlm_lock *lock, __u32 mode) ldlm_lock_add_to_lru(lock); unlock_res_and_lock(lock); - if (lock->l_flags & LDLM_FL_FAIL_LOC) + if (ldlm_is_fail_loc(lock)) OBD_RACE(OBD_FAIL_LDLM_CP_BL_RACE); /* Call ldlm_cancel_lru() only if EARLY_CANCEL and LRU RESIZE @@ -862,7 +861,7 @@ void ldlm_lock_decref_and_cancel(struct lustre_handle *lockh, __u32 mode) LDLM_DEBUG(lock, "ldlm_lock_decref(%s)", ldlm_lockname[mode]); lock_res_and_lock(lock); - lock->l_flags |= LDLM_FL_CBPENDING; + ldlm_set_cbpending(lock); unlock_res_and_lock(lock); ldlm_lock_decref_internal(lock, mode); LDLM_LOCK_PUT(lock); @@ -980,7 +979,7 @@ static void ldlm_granted_list_add_lock(struct ldlm_lock *lock, ldlm_resource_dump(D_INFO, res); LDLM_DEBUG(lock, "About to add lock:"); - if (lock->l_flags & LDLM_FL_DESTROYED) { + if (ldlm_is_destroyed(lock)) { CDEBUG(D_OTHER, "Lock destroyed, not adding to resource\n"); return; } @@ -1082,10 +1081,9 @@ static struct ldlm_lock *search_queue(struct list_head *queue, * whose parents already hold a lock so forward progress * can still happen. */ - if (lock->l_flags & LDLM_FL_CBPENDING && - !(flags & LDLM_FL_CBPENDING)) + if (ldlm_is_cbpending(lock) && !(flags & LDLM_FL_CBPENDING)) continue; - if (!unref && lock->l_flags & LDLM_FL_CBPENDING && + if (!unref && ldlm_is_cbpending(lock) && lock->l_readers == 0 && lock->l_writers == 0) continue; @@ -1114,11 +1112,10 @@ static struct ldlm_lock *search_queue(struct list_head *queue, policy->l_inodebits.bits)) continue; - if (!unref && (lock->l_flags & LDLM_FL_GONE_MASK)) + if (!unref && LDLM_HAVE_MASK(lock, GONE)) continue; - if ((flags & LDLM_FL_LOCAL_ONLY) && - !(lock->l_flags & LDLM_FL_LOCAL)) + if ((flags & LDLM_FL_LOCAL_ONLY) && !ldlm_is_local(lock)) continue; if (flags & LDLM_FL_TEST_LOCK) { @@ -1152,7 +1149,7 @@ EXPORT_SYMBOL(ldlm_lock_fail_match_locked); */ void ldlm_lock_allow_match_locked(struct ldlm_lock *lock) { - lock->l_flags |= LDLM_FL_LVB_READY; + ldlm_set_lvb_ready(lock); wake_up_all(&lock->l_waitq); } EXPORT_SYMBOL(ldlm_lock_allow_match_locked); @@ -1253,8 +1250,7 @@ enum ldlm_mode ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags, if (lock) { ldlm_lock2handle(lock, lockh); - if ((flags & LDLM_FL_LVB_READY) && - (!(lock->l_flags & LDLM_FL_LVB_READY))) { + if ((flags & LDLM_FL_LVB_READY) && !ldlm_is_lvb_ready(lock)) { __u64 wait_flags = LDLM_FL_LVB_READY | LDLM_FL_DESTROYED | LDLM_FL_FAIL_NOTIFIED; struct l_wait_info lwi; @@ -1281,7 +1277,7 @@ enum ldlm_mode ldlm_lock_match(struct ldlm_namespace *ns, __u64 flags, l_wait_event(lock->l_waitq, lock->l_flags & wait_flags, &lwi); - if (!(lock->l_flags & LDLM_FL_LVB_READY)) { + if (!ldlm_is_lvb_ready(lock)) { if (flags & LDLM_FL_TEST_LOCK) LDLM_LOCK_RELEASE(lock); else @@ -1335,10 +1331,10 @@ enum ldlm_mode ldlm_revalidate_lock_handle(struct lustre_handle *lockh, lock = ldlm_handle2lock(lockh); if (lock) { lock_res_and_lock(lock); - if (lock->l_flags & LDLM_FL_GONE_MASK) + if (LDLM_HAVE_MASK(lock, GONE)) goto out; - if (lock->l_flags & LDLM_FL_CBPENDING && + if (ldlm_is_cbpending(lock) && lock->l_readers == 0 && lock->l_writers == 0) goto out; @@ -1552,7 +1548,8 @@ enum ldlm_error ldlm_lock_enqueue(struct ldlm_namespace *ns, /* Some flags from the enqueue want to make it into the AST, via the * lock's l_flags. */ - lock->l_flags |= *flags & LDLM_FL_AST_DISCARD_DATA; + if (*flags & LDLM_FL_AST_DISCARD_DATA) + ldlm_set_ast_discard_data(lock); /* * This distinction between local lock trees is very important; a client @@ -1591,7 +1588,7 @@ ldlm_work_bl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq) lock_res_and_lock(lock); list_del_init(&lock->l_bl_ast); - LASSERT(lock->l_flags & LDLM_FL_AST_SENT); + LASSERT(ldlm_is_ast_sent(lock)); LASSERT(lock->l_bl_ast_run == 0); LASSERT(lock->l_blocking_lock); lock->l_bl_ast_run++; @@ -1638,12 +1635,12 @@ ldlm_work_cp_ast_lock(struct ptlrpc_request_set *rqset, void *opaq) /* nobody should touch l_cp_ast */ lock_res_and_lock(lock); list_del_init(&lock->l_cp_ast); - LASSERT(lock->l_flags & LDLM_FL_CP_REQD); + LASSERT(ldlm_is_cp_reqd(lock)); /* save l_completion_ast since it can be changed by * mds_intent_policy(), see bug 14225 */ completion_callback = lock->l_completion_ast; - lock->l_flags &= ~LDLM_FL_CP_REQD; + ldlm_clear_cp_reqd(lock); unlock_res_and_lock(lock); if (completion_callback) @@ -1788,8 +1785,8 @@ out: void ldlm_cancel_callback(struct ldlm_lock *lock) { check_res_locked(lock->l_resource); - if (!(lock->l_flags & LDLM_FL_CANCEL)) { - lock->l_flags |= LDLM_FL_CANCEL; + if (!ldlm_is_cancel(lock)) { + ldlm_set_cancel(lock); if (lock->l_blocking_ast) { unlock_res_and_lock(lock); lock->l_blocking_ast(lock, NULL, lock->l_ast_data, @@ -1799,7 +1796,7 @@ void ldlm_cancel_callback(struct ldlm_lock *lock) LDLM_DEBUG(lock, "no blocking ast"); } } - lock->l_flags |= LDLM_FL_BL_DONE; + ldlm_set_bl_done(lock); } /** diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c index ebe9042..024185b 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c @@ -124,10 +124,10 @@ void ldlm_handle_bl_callback(struct ldlm_namespace *ns, LDLM_DEBUG(lock, "client blocking AST callback handler"); lock_res_and_lock(lock); - lock->l_flags |= LDLM_FL_CBPENDING; + ldlm_set_cbpending(lock); - if (lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK) - lock->l_flags |= LDLM_FL_CANCEL; + if (ldlm_is_cancel_on_block(lock)) + ldlm_set_cancel(lock); do_ast = !lock->l_readers && !lock->l_writers; unlock_res_and_lock(lock); @@ -172,7 +172,7 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req, set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(to); if (lock->l_granted_mode == lock->l_req_mode || - lock->l_flags & LDLM_FL_DESTROYED) + ldlm_is_destroyed(lock)) break; } } @@ -215,7 +215,7 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req, } lock_res_and_lock(lock); - if ((lock->l_flags & LDLM_FL_DESTROYED) || + if (ldlm_is_destroyed(lock) || lock->l_granted_mode == lock->l_req_mode) { /* bug 11300: the lock has already been granted */ unlock_res_and_lock(lock); @@ -291,7 +291,7 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req, out: if (rc < 0) { lock_res_and_lock(lock); - lock->l_flags |= LDLM_FL_FAILED; + ldlm_set_failed(lock); unlock_res_and_lock(lock); wake_up(&lock->l_waitq); } @@ -360,8 +360,7 @@ static int __ldlm_bl_to_thread(struct ldlm_bl_work_item *blwi, struct ldlm_bl_pool *blp = ldlm_state->ldlm_bl_pool; spin_lock(&blp->blp_lock); - if (blwi->blwi_lock && - blwi->blwi_lock->l_flags & LDLM_FL_DISCARD_DATA) { + if (blwi->blwi_lock && ldlm_is_discard_data(blwi->blwi_lock)) { /* add LDLM_FL_DISCARD_DATA requests to the priority list */ list_add_tail(&blwi->blwi_entry, &blp->blp_prio_list); } else { @@ -626,7 +625,7 @@ static int ldlm_callback_handler(struct ptlrpc_request *req) return 0; } - if ((lock->l_flags & LDLM_FL_FAIL_LOC) && + if (ldlm_is_fail_loc(lock) && lustre_msg_get_opc(req->rq_reqmsg) == LDLM_BL_CALLBACK) OBD_RACE(OBD_FAIL_LDLM_CP_BL_RACE); @@ -640,9 +639,8 @@ static int ldlm_callback_handler(struct ptlrpc_request *req) * we can tell the server we have no lock. Otherwise, we * should send cancel after dropping the cache. */ - if (((lock->l_flags & LDLM_FL_CANCELING) && - (lock->l_flags & LDLM_FL_BL_DONE)) || - (lock->l_flags & LDLM_FL_FAILED)) { + if ((ldlm_is_canceling(lock) && ldlm_is_bl_done(lock)) || + ldlm_is_failed(lock)) { LDLM_DEBUG(lock, "callback on lock %#llx - lock disappeared\n", dlm_req->lock_handle[0].cookie); unlock_res_and_lock(lock); @@ -656,7 +654,7 @@ static int ldlm_callback_handler(struct ptlrpc_request *req) * Let ldlm_cancel_lru() be fast. */ ldlm_lock_remove_from_lru(lock); - lock->l_flags |= LDLM_FL_BL_AST; + ldlm_set_bl_ast(lock); } unlock_res_and_lock(lock); @@ -674,7 +672,7 @@ static int ldlm_callback_handler(struct ptlrpc_request *req) case LDLM_BL_CALLBACK: CDEBUG(D_INODE, "blocking ast\n"); req_capsule_extend(&req->rq_pill, &RQF_LDLM_BL_CALLBACK); - if (!(lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK)) { + if (!ldlm_is_cancel_on_block(lock)) { rc = ldlm_callback_reply(req, 0); if (req->rq_no_reply || rc) ldlm_callback_errmsg(req, "Normal process", rc, diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index 861e4be..0e4ab2c 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -153,7 +153,7 @@ static int ldlm_completion_tail(struct ldlm_lock *lock) long delay; int result; - if (lock->l_flags & (LDLM_FL_DESTROYED | LDLM_FL_FAILED)) { + if (ldlm_is_destroyed(lock) || ldlm_is_failed(lock)) { LDLM_DEBUG(lock, "client-side enqueue: destroyed"); result = -EIO; } else { @@ -252,7 +252,7 @@ noreproc: lwd.lwd_lock = lock; - if (lock->l_flags & LDLM_FL_NO_TIMEOUT) { + if (ldlm_is_no_timeout(lock)) { LDLM_DEBUG(lock, "waiting indefinitely because of NO_TIMEOUT"); lwi = LWI_INTR(interrupted_completion_wait, &lwd); } else { @@ -269,7 +269,7 @@ noreproc: if (OBD_FAIL_CHECK_RESET(OBD_FAIL_LDLM_INTR_CP_AST, OBD_FAIL_LDLM_CP_BL_RACE | OBD_FAIL_ONCE)) { - lock->l_flags |= LDLM_FL_FAIL_LOC; + ldlm_set_fail_loc(lock); rc = -EINTR; } else { /* Go to sleep until the lock is granted or cancelled. */ @@ -296,7 +296,7 @@ static void failed_lock_cleanup(struct ldlm_namespace *ns, lock_res_and_lock(lock); /* Check that lock is not granted or failed, we might race. */ if ((lock->l_req_mode != lock->l_granted_mode) && - !(lock->l_flags & LDLM_FL_FAILED)) { + !ldlm_is_failed(lock)) { /* Make sure that this lock will not be found by raced * bl_ast and -EINVAL reply is sent to server anyways. * bug 17645 @@ -821,12 +821,11 @@ static __u64 ldlm_cli_cancel_local(struct ldlm_lock *lock) LDLM_DEBUG(lock, "client-side cancel"); /* Set this flag to prevent others from getting new references*/ lock_res_and_lock(lock); - lock->l_flags |= LDLM_FL_CBPENDING; + ldlm_set_cbpending(lock); local_only = !!(lock->l_flags & (LDLM_FL_LOCAL_ONLY|LDLM_FL_CANCEL_ON_BLOCK)); ldlm_cancel_callback(lock); - rc = (lock->l_flags & LDLM_FL_BL_AST) ? - LDLM_FL_BL_AST : LDLM_FL_CANCELING; + rc = ldlm_is_bl_ast(lock) ? LDLM_FL_BL_AST : LDLM_FL_CANCELING; unlock_res_and_lock(lock); if (local_only) { @@ -1150,7 +1149,7 @@ ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns, struct ldlm_lock *lock, default: result = LDLM_POLICY_SKIP_LOCK; lock_res_and_lock(lock); - lock->l_flags |= LDLM_FL_SKIPPED; + ldlm_set_skipped(lock); unlock_res_and_lock(lock); break; } @@ -1381,9 +1380,9 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, list_for_each_entry_safe(lock, next, &ns->ns_unused_list, l_lru) { /* No locks which got blocking requests. */ - LASSERT(!(lock->l_flags & LDLM_FL_BL_AST)); + LASSERT(!ldlm_is_bl_ast(lock)); - if (no_wait && lock->l_flags & LDLM_FL_SKIPPED) + if (no_wait && ldlm_is_skipped(lock)) /* already processed */ continue; @@ -1394,7 +1393,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, /* Somebody is already doing CANCEL. No need for this * lock in LRU, do not traverse it again. */ - if (!(lock->l_flags & LDLM_FL_CANCELING)) + if (!ldlm_is_canceling(lock)) break; ldlm_lock_remove_from_lru_nolock(lock); @@ -1437,7 +1436,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, lock_res_and_lock(lock); /* Check flags again under the lock. */ - if ((lock->l_flags & LDLM_FL_CANCELING) || + if (ldlm_is_canceling(lock) || (ldlm_lock_remove_from_lru_check(lock, last_use) == 0)) { /* Another thread is removing lock from LRU, or * somebody is already doing CANCEL, or there @@ -1461,7 +1460,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, * where while we are doing cancel here, server is also * silently cancelling this lock. */ - lock->l_flags &= ~LDLM_FL_CANCEL_ON_BLOCK; + ldlm_clear_cancel_on_block(lock); /* Setting the CBPENDING flag is a little misleading, * but prevents an important race; namely, once @@ -1558,8 +1557,7 @@ int ldlm_cancel_resource_local(struct ldlm_resource *res, /* If somebody is already doing CANCEL, or blocking AST came, * skip this lock. */ - if (lock->l_flags & LDLM_FL_BL_AST || - lock->l_flags & LDLM_FL_CANCELING) + if (ldlm_is_bl_ast(lock) || ldlm_is_canceling(lock)) continue; if (lockmode_compat(lock->l_granted_mode, mode)) @@ -1918,7 +1916,7 @@ static int replay_one_lock(struct obd_import *imp, struct ldlm_lock *lock) int flags; /* Bug 11974: Do not replay a lock which is actively being canceled */ - if (lock->l_flags & LDLM_FL_CANCELING) { + if (ldlm_is_canceling(lock)) { LDLM_DEBUG(lock, "Not replaying canceled lock:"); return 0; } @@ -1927,7 +1925,7 @@ static int replay_one_lock(struct obd_import *imp, struct ldlm_lock *lock) * server might have long dropped it, but notification of that event was * lost by network. (and server granted conflicting lock already) */ - if (lock->l_flags & LDLM_FL_CANCEL_ON_BLOCK) { + if (ldlm_is_cancel_on_block(lock)) { LDLM_DEBUG(lock, "Not replaying reply-less lock:"); ldlm_lock_cancel(lock); return 0; diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c index 242a664..475fabb 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c @@ -758,12 +758,12 @@ static void cleanup_resource(struct ldlm_resource *res, struct list_head *q, list_for_each(tmp, q) { lock = list_entry(tmp, struct ldlm_lock, l_res_link); - if (lock->l_flags & LDLM_FL_CLEANED) { + if (ldlm_is_cleaned(lock)) { lock = NULL; continue; } LDLM_LOCK_GET(lock); - lock->l_flags |= LDLM_FL_CLEANED; + ldlm_set_cleaned(lock); break; } @@ -775,13 +775,13 @@ static void cleanup_resource(struct ldlm_resource *res, struct list_head *q, /* Set CBPENDING so nothing in the cancellation path * can match this lock. */ - lock->l_flags |= LDLM_FL_CBPENDING; - lock->l_flags |= LDLM_FL_FAILED; + ldlm_set_cbpending(lock); + ldlm_set_failed(lock); lock->l_flags |= flags; /* ... without sending a CANCEL message for local_only. */ if (local_only) - lock->l_flags |= LDLM_FL_LOCAL_ONLY; + ldlm_set_local_only(lock); if (local_only && (lock->l_readers || lock->l_writers)) { /* This is a little bit gross, but much better than the @@ -1275,7 +1275,7 @@ void ldlm_resource_add_lock(struct ldlm_resource *res, struct list_head *head, LDLM_DEBUG(lock, "About to add this lock:\n"); - if (lock->l_flags & LDLM_FL_DESTROYED) { + if (ldlm_is_destroyed(lock)) { CDEBUG(D_OTHER, "Lock destroyed, not adding to resource\n"); return; } diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c index dd1c827..5596b13 100644 --- a/drivers/staging/lustre/lustre/llite/dcache.c +++ b/drivers/staging/lustre/lustre/llite/dcache.c @@ -108,11 +108,8 @@ static int ll_dcompare(const struct dentry *parent, const struct dentry *dentry, static inline int return_if_equal(struct ldlm_lock *lock, void *data) { - if ((lock->l_flags & - (LDLM_FL_CANCELING | LDLM_FL_DISCARD_DATA)) == - (LDLM_FL_CANCELING | LDLM_FL_DISCARD_DATA)) - return LDLM_ITER_CONTINUE; - return LDLM_ITER_STOP; + return (ldlm_is_canceling(lock) && ldlm_is_discard_data(lock)) ? + LDLM_ITER_CONTINUE : LDLM_ITER_STOP; } /* find any ldlm lock of the inode in mdc and lov diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 24fa24b..18e0fec 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -3355,10 +3355,10 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock) int rc; CDEBUG(D_INODE, DFID" LVB_READY=%d l_lvb_data=%p l_lvb_len=%d\n", - PFID(ll_inode2fid(inode)), !!(lock->l_flags & LDLM_FL_LVB_READY), + PFID(ll_inode2fid(inode)), ldlm_is_lvb_ready(lock), lock->l_lvb_data, lock->l_lvb_len); - if (lock->l_lvb_data && (lock->l_flags & LDLM_FL_LVB_READY)) + if (lock->l_lvb_data && ldlm_is_lvb_ready(lock)) return 0; /* if layout lock was granted right away, the layout is returned @@ -3442,7 +3442,7 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, enum ldlm_mode mode, md_set_lock_data(sbi->ll_md_exp, &lockh->cookie, inode, NULL); lock_res_and_lock(lock); - lvb_ready = !!(lock->l_flags & LDLM_FL_LVB_READY); + lvb_ready = ldlm_is_lvb_ready(lock); unlock_res_and_lock(lock); /* checking lvb_ready is racy but this is okay. The worst case is * that multi processes may configure the file on the same time. diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c index 9fa862b..cf4ad93 100644 --- a/drivers/staging/lustre/lustre/llite/namei.c +++ b/drivers/staging/lustre/lustre/llite/namei.c @@ -190,7 +190,7 @@ int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc, break; /* Invalidate all dentries associated with this inode */ - LASSERT(lock->l_flags & LDLM_FL_CANCELING); + LASSERT(ldlm_is_canceling(lock)); if (!fid_res_name_eq(ll_inode2fid(inode), &lock->l_resource->lr_name)) { diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c index 7ea6489..16f9cd9 100644 --- a/drivers/staging/lustre/lustre/osc/osc_lock.c +++ b/drivers/staging/lustre/lustre/osc/osc_lock.c @@ -120,7 +120,7 @@ static int osc_lock_invariant(struct osc_lock *ols) * ast. */ if (!ergo(olock && ols->ols_state < OLS_CANCELLED, - ((olock->l_flags & LDLM_FL_DESTROYED) == 0))) + !ldlm_is_destroyed(olock))) return 0; if (!ergo(ols->ols_state == OLS_GRANTED, -- cgit v0.10.2 From d76964056ad518982891e1c0ebfbb0b114a7b63a Mon Sep 17 00:00:00 2001 From: Bruce Korb Date: Wed, 27 Apr 2016 18:20:58 -0400 Subject: staging: lustre: ldlm: clean up l_flags Remove the now obsolete LDLM_AST_FLAGS and LDLM_INHERIT_FLAGS defines. Remove the obsolete LDLM_FL_HIDE_LOCK_MASK define. Rename "local_only" mask to "off_wire" since it is confusingly similar to a flag that (I think) means, "do not copy this lock over the wire." Signed-off-by: Bruce Korb Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2906 Reviewed-by: Keith Mannthey Reviewed-on: http://review.whamcloud.com/7963 Reviewed-by: Doug Oucharek Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h index aff0904..62d3b31 100644 --- a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h +++ b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h @@ -37,17 +37,11 @@ /** l_flags bits marked as "gone" bits */ #define LDLM_FL_GONE_MASK 0x0006004000000000ULL -/** l_flags bits marked as "hide_lock" bits */ -#define LDLM_FL_HIDE_LOCK_MASK 0x0000206400000000ULL - /** l_flags bits marked as "inherit" bits */ #define LDLM_FL_INHERIT_MASK 0x0000000000800000ULL -/** l_flags bits marked as "local_only" bits */ -#define LDLM_FL_LOCAL_ONLY_MASK 0x00FFFFFF00000000ULL - -/** l_flags bits marked as "on_wire" bits */ -#define LDLM_FL_ON_WIRE_MASK 0x00000000C08F932FULL +/** l_flags bits marked as "off_wire" bits */ +#define LDLM_FL_OFF_WIRE_MASK 0x00FFFFFF00000000ULL /** extent, mode, or resource changed */ #define LDLM_FL_LOCK_CHANGED 0x0000000000000001ULL /* bit 0 */ @@ -390,12 +384,6 @@ /** clear a ldlm_lock flag bit */ #define LDLM_CLEAR_FLAG(_l, _b) ((_l)->l_flags &= ~(_b)) -/** Mask of flags inherited from parent lock when doing intents. */ -#define LDLM_INHERIT_FLAGS LDLM_FL_INHERIT_MASK - -/** Mask of Flags sent in AST lock_flags to map into the receiving lock. */ -#define LDLM_AST_FLAGS LDLM_FL_AST_MASK - /** @} subgroup */ /** @} group */ #ifdef WIRESHARK_COMPILE diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c index 024185b..ab739f0 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c @@ -632,7 +632,7 @@ static int ldlm_callback_handler(struct ptlrpc_request *req) /* Copy hints/flags (e.g. LDLM_FL_DISCARD_DATA) from AST. */ lock_res_and_lock(lock); lock->l_flags |= ldlm_flags_from_wire(dlm_req->lock_flags & - LDLM_AST_FLAGS); + LDLM_FL_AST_MASK); if (lustre_msg_get_opc(req->rq_reqmsg) == LDLM_BL_CALLBACK) { /* If somebody cancels lock and cache is already dropped, * or lock is failed before cp_ast received on client, diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index 0e4ab2c..107314e 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -421,7 +421,7 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req, *flags = ldlm_flags_from_wire(reply->lock_flags); lock->l_flags |= ldlm_flags_from_wire(reply->lock_flags & - LDLM_INHERIT_FLAGS); + LDLM_FL_INHERIT_MASK); /* move NO_TIMEOUT flag to the lock to force ldlm_lock_match() * to wait with no timeout as well */ -- cgit v0.10.2 From efceaf7cdb6007bbac9e9d6466e36dcf9ccc62d7 Mon Sep 17 00:00:00 2001 From: Bruce Korb Date: Wed, 27 Apr 2016 18:20:59 -0400 Subject: staging: lustre: ldlm: remove code wireshark handling Wireshark output moved to userland file "lustre_dlm_flags_wshark.c" and only bits that can actually appear "on the wire" are emitted. The user land "packet-lustre.c" code that references these bits now gets emitted into that file. e.g. the "local_only" bit is never put on the wire, so references to it in wireshark are gone. Signed-off-by: Bruce Korb Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2906 Reviewed-by: Keith Mannthey Reviewed-on: http://review.whamcloud.com/7963 Reviewed-by: Doug Oucharek Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h index 62d3b31..1eb0cc4 100644 --- a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h +++ b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h @@ -386,90 +386,5 @@ /** @} subgroup */ /** @} group */ -#ifdef WIRESHARK_COMPILE -static int hf_lustre_ldlm_fl_lock_changed = -1; -static int hf_lustre_ldlm_fl_block_granted = -1; -static int hf_lustre_ldlm_fl_block_conv = -1; -static int hf_lustre_ldlm_fl_block_wait = -1; -static int hf_lustre_ldlm_fl_ast_sent = -1; -static int hf_lustre_ldlm_fl_replay = -1; -static int hf_lustre_ldlm_fl_intent_only = -1; -static int hf_lustre_ldlm_fl_has_intent = -1; -static int hf_lustre_ldlm_fl_flock_deadlock = -1; -static int hf_lustre_ldlm_fl_discard_data = -1; -static int hf_lustre_ldlm_fl_no_timeout = -1; -static int hf_lustre_ldlm_fl_block_nowait = -1; -static int hf_lustre_ldlm_fl_test_lock = -1; -static int hf_lustre_ldlm_fl_cancel_on_block = -1; -static int hf_lustre_ldlm_fl_deny_on_contention = -1; -static int hf_lustre_ldlm_fl_ast_discard_data = -1; -static int hf_lustre_ldlm_fl_fail_loc = -1; -static int hf_lustre_ldlm_fl_skipped = -1; -static int hf_lustre_ldlm_fl_cbpending = -1; -static int hf_lustre_ldlm_fl_wait_noreproc = -1; -static int hf_lustre_ldlm_fl_cancel = -1; -static int hf_lustre_ldlm_fl_local_only = -1; -static int hf_lustre_ldlm_fl_failed = -1; -static int hf_lustre_ldlm_fl_canceling = -1; -static int hf_lustre_ldlm_fl_local = -1; -static int hf_lustre_ldlm_fl_lvb_ready = -1; -static int hf_lustre_ldlm_fl_kms_ignore = -1; -static int hf_lustre_ldlm_fl_cp_reqd = -1; -static int hf_lustre_ldlm_fl_cleaned = -1; -static int hf_lustre_ldlm_fl_atomic_cb = -1; -static int hf_lustre_ldlm_fl_bl_ast = -1; -static int hf_lustre_ldlm_fl_bl_done = -1; -static int hf_lustre_ldlm_fl_no_lru = -1; -static int hf_lustre_ldlm_fl_fail_notified = -1; -static int hf_lustre_ldlm_fl_destroyed = -1; -static int hf_lustre_ldlm_fl_server_lock = -1; -static int hf_lustre_ldlm_fl_res_locked = -1; -static int hf_lustre_ldlm_fl_waited = -1; -static int hf_lustre_ldlm_fl_ns_srv = -1; -static int hf_lustre_ldlm_fl_excl = -1; - -const value_string lustre_ldlm_flags_vals[] = { - {LDLM_FL_LOCK_CHANGED, "LDLM_FL_LOCK_CHANGED"}, - {LDLM_FL_BLOCK_GRANTED, "LDLM_FL_BLOCK_GRANTED"}, - {LDLM_FL_BLOCK_CONV, "LDLM_FL_BLOCK_CONV"}, - {LDLM_FL_BLOCK_WAIT, "LDLM_FL_BLOCK_WAIT"}, - {LDLM_FL_AST_SENT, "LDLM_FL_AST_SENT"}, - {LDLM_FL_REPLAY, "LDLM_FL_REPLAY"}, - {LDLM_FL_INTENT_ONLY, "LDLM_FL_INTENT_ONLY"}, - {LDLM_FL_HAS_INTENT, "LDLM_FL_HAS_INTENT"}, - {LDLM_FL_FLOCK_DEADLOCK, "LDLM_FL_FLOCK_DEADLOCK"}, - {LDLM_FL_DISCARD_DATA, "LDLM_FL_DISCARD_DATA"}, - {LDLM_FL_NO_TIMEOUT, "LDLM_FL_NO_TIMEOUT"}, - {LDLM_FL_BLOCK_NOWAIT, "LDLM_FL_BLOCK_NOWAIT"}, - {LDLM_FL_TEST_LOCK, "LDLM_FL_TEST_LOCK"}, - {LDLM_FL_CANCEL_ON_BLOCK, "LDLM_FL_CANCEL_ON_BLOCK"}, - {LDLM_FL_DENY_ON_CONTENTION, "LDLM_FL_DENY_ON_CONTENTION"}, - {LDLM_FL_AST_DISCARD_DATA, "LDLM_FL_AST_DISCARD_DATA"}, - {LDLM_FL_FAIL_LOC, "LDLM_FL_FAIL_LOC"}, - {LDLM_FL_SKIPPED, "LDLM_FL_SKIPPED"}, - {LDLM_FL_CBPENDING, "LDLM_FL_CBPENDING"}, - {LDLM_FL_WAIT_NOREPROC, "LDLM_FL_WAIT_NOREPROC"}, - {LDLM_FL_CANCEL, "LDLM_FL_CANCEL"}, - {LDLM_FL_LOCAL_ONLY, "LDLM_FL_LOCAL_ONLY"}, - {LDLM_FL_FAILED, "LDLM_FL_FAILED"}, - {LDLM_FL_CANCELING, "LDLM_FL_CANCELING"}, - {LDLM_FL_LOCAL, "LDLM_FL_LOCAL"}, - {LDLM_FL_LVB_READY, "LDLM_FL_LVB_READY"}, - {LDLM_FL_KMS_IGNORE, "LDLM_FL_KMS_IGNORE"}, - {LDLM_FL_CP_REQD, "LDLM_FL_CP_REQD"}, - {LDLM_FL_CLEANED, "LDLM_FL_CLEANED"}, - {LDLM_FL_ATOMIC_CB, "LDLM_FL_ATOMIC_CB"}, - {LDLM_FL_BL_AST, "LDLM_FL_BL_AST"}, - {LDLM_FL_BL_DONE, "LDLM_FL_BL_DONE"}, - {LDLM_FL_NO_LRU, "LDLM_FL_NO_LRU"}, - {LDLM_FL_FAIL_NOTIFIED, "LDLM_FL_FAIL_NOTIFIED"}, - {LDLM_FL_DESTROYED, "LDLM_FL_DESTROYED"}, - {LDLM_FL_SERVER_LOCK, "LDLM_FL_SERVER_LOCK"}, - {LDLM_FL_RES_LOCKED, "LDLM_FL_RES_LOCKED"}, - {LDLM_FL_WAITED, "LDLM_FL_WAITED"}, - {LDLM_FL_NS_SRV, "LDLM_FL_NS_SRV"}, - {LDLM_FL_EXCL, "LDLM_FL_EXCL"}, - { 0, NULL } -}; -#endif /* WIRESHARK_COMPILE */ + #endif /* LDLM_ALL_FLAGS_MASK */ -- cgit v0.10.2 From b97fa87f8003fc9b577026b07e465f48939922f8 Mon Sep 17 00:00:00 2001 From: Bruce Korb Date: Wed, 27 Apr 2016 18:21:00 -0400 Subject: staging: lustre: ldlm: update comments about ldlm l_flags Add and update documentation about some of the ldlm l_flags. Signed-off-by: Bruce Korb Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2906 Reviewed-by: Keith Mannthey Reviewed-on: http://review.whamcloud.com/7963 Reviewed-by: Doug Oucharek Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h index 1eb0cc4..e7e0c21 100644 --- a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h +++ b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h @@ -198,7 +198,7 @@ #define ldlm_set_cancel(_l) LDLM_SET_FLAG((_l), 1ULL << 36) #define ldlm_clear_cancel(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 36) -/** whatever it might mean */ +/** whatever it might mean -- never transmitted? */ #define LDLM_FL_LOCAL_ONLY 0x0000002000000000ULL /* bit 37 */ #define ldlm_is_local_only(_l) LDLM_TEST_FLAG((_l), 1ULL << 37) #define ldlm_set_local_only(_l) LDLM_SET_FLAG((_l), 1ULL << 37) @@ -281,18 +281,18 @@ * has canceled this lock and is waiting for rpc_lock which is taken by * the first operation. LDLM_FL_BL_AST is set by ldlm_callback_handler() in * the lock to prevent the Early Lock Cancel (ELC) code from cancelling it. - * - * LDLM_FL_BL_DONE is to be set by ldlm_cancel_callback() when lock cache is - * dropped to let ldlm_callback_handler() return EINVAL to the server. It - * is used when ELC RPC is already prepared and is waiting for rpc_lock, - * too late to send a separate CANCEL RPC. */ #define LDLM_FL_BL_AST 0x0000400000000000ULL /* bit 46 */ #define ldlm_is_bl_ast(_l) LDLM_TEST_FLAG((_l), 1ULL << 46) #define ldlm_set_bl_ast(_l) LDLM_SET_FLAG((_l), 1ULL << 46) #define ldlm_clear_bl_ast(_l) LDLM_CLEAR_FLAG((_l), 1ULL << 46) -/** whatever it might mean */ +/** + * Set by ldlm_cancel_callback() when lock cache is dropped to let + * ldlm_callback_handler() return EINVAL to the server. It is used when + * ELC RPC is already prepared and is waiting for rpc_lock, too late to + * send a separate CANCEL RPC. + */ #define LDLM_FL_BL_DONE 0x0000800000000000ULL /* bit 47 */ #define ldlm_is_bl_done(_l) LDLM_TEST_FLAG((_l), 1ULL << 47) #define ldlm_set_bl_done(_l) LDLM_SET_FLAG((_l), 1ULL << 47) -- cgit v0.10.2 From 97a075cddb81894dd3788e8901b40c5bedcc6871 Mon Sep 17 00:00:00 2001 From: James Nunez Date: Wed, 27 Apr 2016 18:21:01 -0400 Subject: staging: lustre: llite: Replace printing of i_ino with ll_inode2fid() The printing of i_ino/i_generation in llite messages is not nearly so useful as printing the full inode FID, since i_ino is a "compressed" version of the FID and there may be duplicate values for i_ino in some cases (especially if running on a 32-bit client). All instances of printing i_ino/i_generation are replaced with the FID using ll_inode2fid(). All instances, except for one, of printing just i_ino was replaced by printing the FID. In all CERROR lines touched by the i_ino replacements, the device name or fsname was added at the beginning of the message if it did not already exist. Signed-off-by: James Nunez Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3491 Reviewed-on: http://review.whamcloud.com/6848 Reviewed-by: Andreas Dilger Reviewed-by: John L. Hammond Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c index 5596b13..1b6f82a 100644 --- a/drivers/staging/lustre/lustre/llite/dcache.c +++ b/drivers/staging/lustre/lustre/llite/dcache.c @@ -250,8 +250,8 @@ void ll_invalidate_aliases(struct inode *inode) { struct dentry *dentry; - CDEBUG(D_INODE, "marking dentries for ino %lu/%u(%p) invalid\n", - inode->i_ino, inode->i_generation, inode); + CDEBUG(D_INODE, "marking dentries for ino "DFID"(%p) invalid\n", + PFID(ll_inode2fid(inode)), inode); ll_lock_dcache(inode); hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) { @@ -286,8 +286,8 @@ void ll_lookup_finish_locks(struct lookup_intent *it, struct inode *inode) if (it->d.lustre.it_lock_mode && inode) { struct ll_sb_info *sbi = ll_i2sbi(inode); - CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n", - inode, inode->i_ino, inode->i_generation); + CDEBUG(D_DLMTRACE, "setting l_data to inode "DFID"(%p)\n", + PFID(ll_inode2fid(inode)), inode); ll_set_lock_data(sbi->ll_md_exp, inode, it, NULL); } diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index b457c28..9463da2 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -158,8 +158,8 @@ static int ll_dir_filler(void *_hash, struct page *page0) int i; int rc; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p) hash %llu\n", - inode->i_ino, inode->i_generation, inode, hash); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p) hash %llu\n", + PFID(ll_inode2fid(inode)), inode, hash); LASSERT(max_pages > 0 && max_pages <= MD_MAX_BRW_PAGES); @@ -372,8 +372,8 @@ struct page *ll_get_dir_page(struct inode *dir, __u64 hash, return ERR_PTR(rc); } - CDEBUG(D_INODE, "setting lr_lvb_inode to inode %p (%lu/%u)\n", - dir, dir->i_ino, dir->i_generation); + CDEBUG(D_INODE, "setting lr_lvb_inode to inode "DFID"(%p)\n", + PFID(ll_inode2fid(dir)), dir); md_set_lock_data(ll_i2sbi(dir)->ll_md_exp, &it.d.lustre.it_lock_handle, dir, NULL); } else { @@ -616,9 +616,9 @@ static int ll_readdir(struct file *filp, struct dir_context *ctx) int api32 = ll_need_32bit_api(sbi); int rc; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p) pos %lu/%llu 32bit_api %d\n", - inode->i_ino, inode->i_generation, - inode, (unsigned long)pos, i_size_read(inode), api32); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p) pos %lu/%llu 32bit_api %d\n", + PFID(ll_inode2fid(inode)), inode, (unsigned long)pos, + i_size_read(inode), api32); if (pos == MDS_DIR_END_OFF) { /* @@ -828,9 +828,8 @@ int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp, rc = md_getattr(sbi->ll_md_exp, op_data, &req); ll_finish_md_op_data(op_data); if (rc < 0) { - CDEBUG(D_INFO, "md_getattr failed on inode %lu/%u: rc %d\n", - inode->i_ino, - inode->i_generation, rc); + CDEBUG(D_INFO, "md_getattr failed on inode "DFID": rc %d\n", + PFID(ll_inode2fid(inode)), rc); goto out; } @@ -1267,8 +1266,8 @@ static long ll_dir_ioctl(struct file *file, unsigned int cmd, unsigned long arg) struct obd_ioctl_data *data; int rc = 0; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), cmd=%#x\n", - inode->i_ino, inode->i_generation, inode, cmd); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), cmd=%#x\n", + PFID(ll_inode2fid(inode)), inode, cmd); /* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */ if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */ diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 18e0fec..a8de10e 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -170,13 +170,15 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp, */ rc = ll_som_update(inode, op_data); if (rc) { - CERROR("inode %lu mdc Size-on-MDS update failed: rc = %d\n", - inode->i_ino, rc); + CERROR("%s: inode "DFID" mdc Size-on-MDS update failed: rc = %d\n", + ll_i2mdexp(inode)->exp_obd->obd_name, + PFID(ll_inode2fid(inode)), rc); rc = 0; } } else if (rc) { - CERROR("inode %lu mdc close failed: rc = %d\n", - inode->i_ino, rc); + CERROR("%s: inode "DFID" mdc close failed: rc = %d\n", + ll_i2mdexp(inode)->exp_obd->obd_name, + PFID(ll_inode2fid(inode)), rc); } /* DATA_MODIFIED flag was successfully sent on close, cancel data @@ -343,8 +345,8 @@ int ll_file_release(struct inode *inode, struct file *file) struct ll_inode_info *lli = ll_i2info(inode); int rc; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, - inode->i_generation, inode); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", + PFID(ll_inode2fid(inode)), inode); #ifdef CONFIG_FS_POSIX_ACL if (sbi->ll_flags & LL_SBI_RMT_CLIENT && is_root_inode(inode)) { @@ -543,8 +545,8 @@ int ll_file_open(struct inode *inode, struct file *file) struct ll_file_data *fd; int rc = 0, opendir_set = 0; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), flags %o\n", inode->i_ino, - inode->i_generation, inode, file->f_flags); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), flags %o\n", + PFID(ll_inode2fid(inode)), inode, file->f_flags); it = file->private_data; /* XXX: compat macro */ file->private_data = NULL; /* prevent ll_local_open assertion */ @@ -1383,8 +1385,8 @@ int ll_lov_setstripe_ea_info(struct inode *inode, struct dentry *dentry, lsm = ccc_inode_lsm_get(inode); if (lsm) { ccc_inode_lsm_put(inode, lsm); - CDEBUG(D_IOCTL, "stripe already exists for ino %lu\n", - inode->i_ino); + CDEBUG(D_IOCTL, "stripe already exists for inode "DFID"\n", + PFID(ll_inode2fid(inode))); rc = -EEXIST; goto out; } @@ -2248,8 +2250,8 @@ ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) struct ll_file_data *fd = LUSTRE_FPRIVATE(file); int flags, rc; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),cmd=%x\n", inode->i_ino, - inode->i_generation, inode, cmd); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p),cmd=%x\n", + PFID(ll_inode2fid(inode)), inode, cmd); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_IOCTL, 1); /* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */ @@ -2557,9 +2559,8 @@ static loff_t ll_file_seek(struct file *file, loff_t offset, int origin) retval = offset + ((origin == SEEK_END) ? i_size_read(inode) : (origin == SEEK_CUR) ? file->f_pos : 0); - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), to=%llu=%#llx(%d)\n", - inode->i_ino, inode->i_generation, inode, retval, retval, - origin); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), to=%llu=%#llx(%d)\n", + PFID(ll_inode2fid(inode)), inode, retval, retval, origin); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LLSEEK, 1); if (origin == SEEK_END || origin == SEEK_HOLE || origin == SEEK_DATA) { @@ -2654,8 +2655,8 @@ int ll_fsync(struct file *file, loff_t start, loff_t end, int datasync) struct ptlrpc_request *req; int rc, err; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, - inode->i_generation, inode); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", + PFID(ll_inode2fid(inode)), inode); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FSYNC, 1); rc = filemap_write_and_wait_range(inode->i_mapping, start, end); @@ -2713,8 +2714,8 @@ ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) int rc; int rc2 = 0; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu file_lock=%p\n", - inode->i_ino, file_lock); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID" file_lock=%p\n", + PFID(ll_inode2fid(inode)), file_lock); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FLOCK, 1); @@ -2797,9 +2798,9 @@ ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) if (IS_ERR(op_data)) return PTR_ERR(op_data); - CDEBUG(D_DLMTRACE, "inode=%lu, pid=%u, flags=%#llx, mode=%u, start=%llu, end=%llu\n", - inode->i_ino, flock.l_flock.pid, flags, einfo.ei_mode, - flock.l_flock.start, flock.l_flock.end); + CDEBUG(D_DLMTRACE, "inode="DFID", pid=%u, flags=%#llx, mode=%u, start=%llu, end=%llu\n", + PFID(ll_inode2fid(inode)), flock.l_flock.pid, flags, + einfo.ei_mode, flock.l_flock.start, flock.l_flock.end); rc = md_enqueue(sbi->ll_md_exp, &einfo, NULL, op_data, &lockh, &flock, 0, NULL /* req */, flags); @@ -2921,8 +2922,8 @@ static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits) struct obd_export *exp; int rc = 0; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),name=%pd\n", - inode->i_ino, inode->i_generation, inode, dentry); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p),name=%pd\n", + PFID(ll_inode2fid(inode)), inode, dentry); exp = ll_i2mdexp(inode); @@ -3144,8 +3145,8 @@ int ll_inode_permission(struct inode *inode, int mask) return rc; } - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), inode mode %x mask %o\n", - inode->i_ino, inode->i_generation, inode, inode->i_mode, mask); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), inode mode %x mask %o\n", + PFID(ll_inode2fid(inode)), inode, inode->i_mode, mask); if (ll_i2sbi(inode)->ll_flags & LL_SBI_RMT_CLIENT) return lustre_check_remote_perm(inode, mask); @@ -3435,8 +3436,8 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, enum ldlm_mode mode, LASSERT(lock); LASSERT(ldlm_has_layout(lock)); - LDLM_DEBUG(lock, "File %p/"DFID" being reconfigured: %d", - inode, PFID(&lli->lli_fid), reconf); + LDLM_DEBUG(lock, "File "DFID"(%p) being reconfigured: %d", + PFID(&lli->lli_fid), inode, reconf); /* in case this is a caching lock and reinstate with new inode */ md_set_lock_data(sbi->ll_md_exp, &lockh->cookie, inode, NULL); @@ -3507,9 +3508,9 @@ out: /* wait for IO to complete if it's still being used. */ if (wait_layout) { - CDEBUG(D_INODE, "%s: %p/" DFID " wait for layout reconf.\n", + CDEBUG(D_INODE, "%s: "DFID"(%p) wait for layout reconf\n", ll_get_fsname(inode->i_sb, NULL, 0), - inode, PFID(&lli->lli_fid)); + PFID(&lli->lli_fid), inode); memset(&conf, 0, sizeof(conf)); conf.coc_opc = OBJECT_CONF_WAIT; @@ -3518,7 +3519,8 @@ out: if (rc == 0) rc = -EAGAIN; - CDEBUG(D_INODE, "file: " DFID " waiting layout return: %d.\n", + CDEBUG(D_INODE, "%s: file="DFID" waiting layout return: %d.\n", + ll_get_fsname(inode->i_sb, NULL, 0), PFID(&lli->lli_fid), rc); } return rc; @@ -3591,9 +3593,9 @@ again: it.it_op = IT_LAYOUT; lockh.cookie = 0ULL; - LDLM_DEBUG_NOLOCK("%s: requeue layout lock for file %p/" DFID "", - ll_get_fsname(inode->i_sb, NULL, 0), inode, - PFID(&lli->lli_fid)); + LDLM_DEBUG_NOLOCK("%s: requeue layout lock for file "DFID"(%p)", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(&lli->lli_fid), inode); rc = md_enqueue(sbi->ll_md_exp, &einfo, &it, op_data, &lockh, NULL, 0, NULL, 0); diff --git a/drivers/staging/lustre/lustre/llite/llite_close.c b/drivers/staging/lustre/lustre/llite/llite_close.c index 92b73ef..2df551d 100644 --- a/drivers/staging/lustre/lustre/llite/llite_close.c +++ b/drivers/staging/lustre/lustre/llite/llite_close.c @@ -90,15 +90,15 @@ void ll_queue_done_writing(struct inode *inode, unsigned long flags) struct ll_close_queue *lcq = ll_i2sbi(inode)->ll_lcq; if (lli->lli_flags & LLIF_MDS_SIZE_LOCK) - CWARN("ino %lu/%u(flags %u) som valid it just after recovery\n", - inode->i_ino, inode->i_generation, - lli->lli_flags); + CWARN("%s: file "DFID"(flags %u) Size-on-MDS valid, done writing allowed and no diry pages\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(ll_inode2fid(inode)), lli->lli_flags); /* DONE_WRITING is allowed and inode has no dirty page. */ spin_lock(&lcq->lcq_lock); LASSERT(list_empty(&lli->lli_close_list)); - CDEBUG(D_INODE, "adding inode %lu/%u to close list\n", - inode->i_ino, inode->i_generation); + CDEBUG(D_INODE, "adding inode "DFID" to close list\n", + PFID(ll_inode2fid(inode))); list_add_tail(&lli->lli_close_list, &lcq->lcq_head); /* Avoid a concurrent insertion into the close thread queue: @@ -124,9 +124,9 @@ void ll_done_writing_attr(struct inode *inode, struct md_op_data *op_data) op_data->op_flags |= MF_SOM_CHANGE; /* Check if Size-on-MDS attributes are valid. */ if (lli->lli_flags & LLIF_MDS_SIZE_LOCK) - CERROR("ino %lu/%u(flags %u) som valid it just after recovery\n", - inode->i_ino, inode->i_generation, - lli->lli_flags); + CERROR("%s: inode "DFID"(flags %u) MDS holds lock on Size-on-MDS attributes\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(ll_inode2fid(inode)), lli->lli_flags); if (!cl_local_size(inode)) { /* Send Size-on-MDS Attributes if valid. */ @@ -221,9 +221,9 @@ int ll_som_update(struct inode *inode, struct md_op_data *op_data) LASSERT(op_data); if (lli->lli_flags & LLIF_MDS_SIZE_LOCK) - CERROR("ino %lu/%u(flags %u) som valid it just after recovery\n", - inode->i_ino, inode->i_generation, - lli->lli_flags); + CERROR("%s: inode "DFID"(flags %u) MDS holds lock on Size-on-MDS attributes\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(ll_inode2fid(inode)), lli->lli_flags); oa = kmem_cache_zalloc(obdo_cachep, GFP_NOFS); if (!oa) { @@ -241,9 +241,9 @@ int ll_som_update(struct inode *inode, struct md_op_data *op_data) if (rc) { oa->o_valid = 0; if (rc != -ENOENT) - CERROR("inode_getattr failed (%d): unable to send a Size-on-MDS attribute update for inode %lu/%u\n", - rc, inode->i_ino, - inode->i_generation); + CERROR("%s: inode_getattr failed - unable to send a Size-on-MDS attribute update for inode "DFID": rc = %d\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(ll_inode2fid(inode)), rc); } else { CDEBUG(D_INODE, "Size-on-MDS update on "DFID"\n", PFID(&lli->lli_fid)); @@ -302,9 +302,11 @@ static void ll_done_writing(struct inode *inode) * OSTs and send setattr to back to MDS. */ rc = ll_som_update(inode, op_data); - else if (rc) - CERROR("inode %lu mdc done_writing failed: rc = %d\n", - inode->i_ino, rc); + else if (rc) { + CERROR("%s: inode "DFID" mdc done_writing failed: rc = %d\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(ll_inode2fid(inode)), rc); + } out: ll_finish_md_op_data(op_data); if (och) { @@ -349,8 +351,8 @@ static int ll_close_thread(void *arg) break; inode = ll_info2i(lli); - CDEBUG(D_INFO, "done_writing for inode %lu/%u\n", - inode->i_ino, inode->i_generation); + CDEBUG(D_INFO, "done_writing for inode "DFID"\n", + PFID(ll_inode2fid(inode))); ll_done_writing(inode); iput(inode); } diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 22e9989..2c6ae05 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -1288,18 +1288,16 @@ static inline void ll_set_lock_data(struct obd_export *exp, struct inode *inode, */ if (it->d.lustre.it_remote_lock_mode) { handle.cookie = it->d.lustre.it_remote_lock_handle; - CDEBUG(D_DLMTRACE, "setting l_data to inode %p(%lu/%u) for remote lock %#llx\n", - inode, - inode->i_ino, inode->i_generation, + CDEBUG(D_DLMTRACE, "setting l_data to inode "DFID"%p for remote lock %#llx\n", + PFID(ll_inode2fid(inode)), inode, handle.cookie); md_set_lock_data(exp, &handle.cookie, inode, NULL); } handle.cookie = it->d.lustre.it_lock_handle; - CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u) for lock %#llx\n", - inode, inode->i_ino, - inode->i_generation, handle.cookie); + CDEBUG(D_DLMTRACE, "setting l_data to inode "DFID"%p for lock %#llx\n", + PFID(ll_inode2fid(inode)), inode, handle.cookie); md_set_lock_data(exp, &handle.cookie, inode, &it->d.lustre.it_lock_bits); diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 9f338b1..55cddc7 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -1033,8 +1033,8 @@ void ll_clear_inode(struct inode *inode) struct ll_inode_info *lli = ll_i2info(inode); struct ll_sb_info *sbi = ll_i2sbi(inode); - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, - inode->i_generation, inode); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", + PFID(ll_inode2fid(inode)), inode); if (S_ISDIR(inode->i_mode)) { /* these should have been cleared in ll_file_release */ @@ -1181,9 +1181,11 @@ static int ll_setattr_done_writing(struct inode *inode, * from OSTs and send setattr to back to MDS. */ rc = ll_som_update(inode, op_data); - else if (rc) - CERROR("inode %lu mdc truncate failed: rc = %d\n", - inode->i_ino, rc); + else if (rc) { + CERROR("%s: inode "DFID" mdc truncate failed: rc = %d\n", + ll_i2sbi(inode)->ll_md_exp->exp_obd->obd_name, + PFID(ll_inode2fid(inode)), rc); + } return rc; } @@ -1211,12 +1213,9 @@ int ll_setattr_raw(struct dentry *dentry, struct iattr *attr, bool hsm_import) bool file_is_released = false; int rc = 0, rc1 = 0; - CDEBUG(D_VFSTRACE, - "%s: setattr inode %p/fid:" DFID - " from %llu to %llu, valid %x, hsm_import %d\n", - ll_get_fsname(inode->i_sb, NULL, 0), inode, - PFID(&lli->lli_fid), i_size_read(inode), attr->ia_size, - attr->ia_valid, hsm_import); + CDEBUG(D_VFSTRACE, "%s: setattr inode "DFID"(%p) from %llu to %llu, valid %x, hsm_import %d\n", + ll_get_fsname(inode->i_sb, NULL, 0), PFID(&lli->lli_fid), inode, + i_size_read(inode), attr->ia_size, attr->ia_valid, hsm_import); if (attr->ia_valid & ATTR_SIZE) { /* Check new size against VFS/VM file size limit and rlimit */ @@ -1590,10 +1589,9 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md) /* FID shouldn't be changed! */ if (fid_is_sane(&lli->lli_fid)) { LASSERTF(lu_fid_eq(&lli->lli_fid, &body->fid1), - "Trying to change FID "DFID - " to the "DFID", inode %lu/%u(%p)\n", + "Trying to change FID "DFID" to the "DFID", inode "DFID"(%p)\n", PFID(&lli->lli_fid), PFID(&body->fid1), - inode->i_ino, inode->i_generation, inode); + PFID(ll_inode2fid(inode)), inode); } else { lli->lli_fid = body->fid1; } @@ -1620,8 +1618,10 @@ void ll_update_inode(struct inode *inode, struct lustre_md *md) if (lli->lli_flags & (LLIF_DONE_WRITING | LLIF_EPOCH_PENDING | LLIF_SOM_DIRTY)) { - CERROR("ino %lu flags %u still has size authority! do not trust the size got from MDS\n", - inode->i_ino, lli->lli_flags); + CERROR("%s: inode "DFID" flags %u still has size authority! do not trust the size got from MDS\n", + sbi->ll_md_exp->exp_obd->obd_name, + PFID(ll_inode2fid(inode)), + lli->lli_flags); } else { /* Use old size assignment to avoid * deadlock bz14138 & bz14326 @@ -1713,8 +1713,8 @@ void ll_delete_inode(struct inode *inode) spin_lock_irq(&inode->i_data.tree_lock); spin_unlock_irq(&inode->i_data.tree_lock); LASSERTF(inode->i_data.nrpages == 0, - "inode=%lu/%u(%p) nrpages=%lu, see http://jira.whamcloud.com/browse/LU-118\n", - inode->i_ino, inode->i_generation, inode, + "inode="DFID"(%p) nrpages=%lu, see http://jira.whamcloud.com/browse/LU-118\n", + PFID(ll_inode2fid(inode)), inode, inode->i_data.nrpages); } /* Workaround end */ @@ -1745,7 +1745,9 @@ int ll_iocontrol(struct inode *inode, struct file *file, rc = md_getattr(sbi->ll_md_exp, op_data, &req); ll_finish_md_op_data(op_data); if (rc) { - CERROR("failure %d inode %lu\n", rc, inode->i_ino); + CERROR("%s: failure inode "DFID": rc = %d\n", + sbi->ll_md_exp->exp_obd->obd_name, + PFID(ll_inode2fid(inode)), rc); return -abs(rc); } diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c index 4f6697a..88ef1ca 100644 --- a/drivers/staging/lustre/lustre/llite/llite_mmap.c +++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c @@ -394,9 +394,11 @@ static int ll_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) result = ll_page_mkwrite0(vma, vmf->page, &retry); if (!printed && ++count > 16) { - CWARN("app(%s): the page %lu of file %lu is under heavy contention.\n", + const struct dentry *de = vma->vm_file->f_path.dentry; + + CWARN("app(%s): the page %lu of file "DFID" is under heavy contention\n", current->comm, vmf->pgoff, - file_inode(vma->vm_file)->i_ino); + PFID(ll_inode2fid(de->d_inode))); printed = true; } } while (retry); diff --git a/drivers/staging/lustre/lustre/llite/llite_nfs.c b/drivers/staging/lustre/lustre/llite/llite_nfs.c index 2c26815..61cb5ff 100644 --- a/drivers/staging/lustre/lustre/llite/llite_nfs.c +++ b/drivers/staging/lustre/lustre/llite/llite_nfs.c @@ -191,8 +191,9 @@ static int ll_encode_fh(struct inode *inode, __u32 *fh, int *plen, int fileid_len = sizeof(struct lustre_nfs_fid) / 4; struct lustre_nfs_fid *nfs_fid = (void *)fh; - CDEBUG(D_INFO, "encoding for (%lu," DFID ") maxlen=%d minlen=%d\n", - inode->i_ino, PFID(ll_inode2fid(inode)), *plen, fileid_len); + CDEBUG(D_INFO, "%s: encoding for ("DFID") maxlen=%d minlen=%d\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(ll_inode2fid(inode)), *plen, fileid_len); if (*plen < fileid_len) { *plen = fileid_len; @@ -298,8 +299,9 @@ static struct dentry *ll_get_parent(struct dentry *dchild) sbi = ll_s2sbi(dir->i_sb); - CDEBUG(D_INFO, "getting parent for (%lu," DFID ")\n", - dir->i_ino, PFID(ll_inode2fid(dir))); + CDEBUG(D_INFO, "%s: getting parent for ("DFID")\n", + ll_get_fsname(dir->i_sb, NULL, 0), + PFID(ll_inode2fid(dir))); rc = ll_get_default_mdsize(sbi, &lmmsize); if (rc != 0) @@ -314,7 +316,9 @@ static struct dentry *ll_get_parent(struct dentry *dchild) rc = md_getattr_name(sbi->ll_md_exp, op_data, &req); ll_finish_md_op_data(op_data); if (rc) { - CERROR("failure %d inode %lu get parent\n", rc, dir->i_ino); + CERROR("%s: failure inode "DFID" get parent: rc = %d\n", + ll_get_fsname(dir->i_sb, NULL, 0), + PFID(ll_inode2fid(dir)), rc); return ERR_PTR(rc); } body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c index cf4ad93..5eba0eb 100644 --- a/drivers/staging/lustre/lustre/llite/namei.c +++ b/drivers/staging/lustre/lustre/llite/namei.c @@ -133,9 +133,9 @@ struct inode *ll_iget(struct super_block *sb, ino_t hash, } } else if (!(inode->i_state & (I_FREEING | I_CLEAR))) { ll_update_inode(inode, md); + CDEBUG(D_VFSTRACE, "got inode: "DFID"(%p)\n", + PFID(&md->body->fid1), inode); } - CDEBUG(D_VFSTRACE, "got inode: %p for "DFID"\n", - inode, PFID(&md->body->fid1)); } return inode; } @@ -257,8 +257,8 @@ int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc, } if ((bits & MDS_INODELOCK_UPDATE) && S_ISDIR(inode->i_mode)) { - CDEBUG(D_INODE, "invalidating inode %lu\n", - inode->i_ino); + CDEBUG(D_INODE, "invalidating inode "DFID"\n", + PFID(ll_inode2fid(inode))); truncate_inode_pages(inode->i_mapping, 0); ll_invalidate_negative_children(inode); } @@ -478,9 +478,8 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry, if (dentry->d_name.len > ll_i2sbi(parent)->ll_namelen) return ERR_PTR(-ENAMETOOLONG); - CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),intent=%s\n", - dentry, parent->i_ino, - parent->i_generation, parent, LL_IT2STR(it)); + CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p),intent=%s\n", + dentry, PFID(ll_inode2fid(parent)), parent, LL_IT2STR(it)); if (d_mountpoint(dentry)) CERROR("Tell Peter, lookup on mtpt, it %s\n", LL_IT2STR(it)); @@ -555,9 +554,8 @@ static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry, struct lookup_intent *itp, it = { .it_op = IT_GETATTR }; struct dentry *de; - CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),flags=%u\n", - dentry, parent->i_ino, - parent->i_generation, parent, flags); + CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p),flags=%u\n", + dentry, PFID(ll_inode2fid(parent)), parent, flags); /* Optimize away (CREATE && !OPEN). Let .create handle the race. */ if ((flags & LOOKUP_CREATE) && !(flags & LOOKUP_OPEN)) @@ -588,10 +586,9 @@ static int ll_atomic_open(struct inode *dir, struct dentry *dentry, long long lookup_flags = LOOKUP_OPEN; int rc = 0; - CDEBUG(D_VFSTRACE, - "VFS Op:name=%pd,dir=%lu/%u(%p),file %p,open_flags %x,mode %x opened %d\n", - dentry, dir->i_ino, - dir->i_generation, dir, file, open_flags, mode, *opened); + CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p),file %p,open_flags %x,mode %x opened %d\n", + dentry, PFID(ll_inode2fid(dir)), dir, file, open_flags, mode, + *opened); it = kzalloc(sizeof(*it), GFP_NOFS); if (!it) @@ -682,8 +679,8 @@ static struct inode *ll_create_node(struct inode *dir, struct lookup_intent *it) * lock on the inode. Since we finally have an inode pointer, * stuff it in the lock. */ - CDEBUG(D_DLMTRACE, "setting l_ast_data to inode %p (%lu/%u)\n", - inode, inode->i_ino, inode->i_generation); + CDEBUG(D_DLMTRACE, "setting l_ast_data to inode "DFID"(%p)\n", + PFID(ll_inode2fid(dir)), inode); ll_set_lock_data(sbi->ll_md_exp, inode, it, NULL); out: ptlrpc_req_finished(request); @@ -710,9 +707,8 @@ static int ll_create_it(struct inode *dir, struct dentry *dentry, int mode, struct inode *inode; int rc = 0; - CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),intent=%s\n", - dentry, dir->i_ino, - dir->i_generation, dir, LL_IT2STR(it)); + CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p), intent=%s\n", + dentry, PFID(ll_inode2fid(dir)), dir, LL_IT2STR(it)); rc = it_open_error(DISP_OPEN_CREATE, it); if (rc) @@ -735,8 +731,9 @@ static void ll_update_times(struct ptlrpc_request *request, LASSERT(body); if (body->valid & OBD_MD_FLMTIME && body->mtime > LTIME_S(inode->i_mtime)) { - CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %llu\n", - inode->i_ino, LTIME_S(inode->i_mtime), body->mtime); + CDEBUG(D_INODE, "setting fid "DFID" mtime from %lu to %llu\n", + PFID(ll_inode2fid(inode)), LTIME_S(inode->i_mtime), + body->mtime); LTIME_S(inode->i_mtime) = body->mtime; } if (body->valid & OBD_MD_FLCTIME && @@ -793,9 +790,9 @@ static int ll_mknod(struct inode *dir, struct dentry *dchild, { int err; - CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p) mode %o dev %x\n", - dchild, dir->i_ino, dir->i_generation, dir, - mode, old_encode_dev(rdev)); + CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p) mode %o dev %x\n", + dchild, PFID(ll_inode2fid(dir)), dir, mode, + old_encode_dev(rdev)); if (!IS_POSIXACL(dir) || !exp_connect_umask(ll_i2mdexp(dir))) mode &= ~current_umask(); @@ -833,9 +830,8 @@ static int ll_create_nd(struct inode *dir, struct dentry *dentry, { int rc; - CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),flags=%u, excl=%d\n", - dentry, dir->i_ino, - dir->i_generation, dir, mode, want_excl); + CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p), flags=%u, excl=%d\n", + dentry, PFID(ll_inode2fid(dir)), dir, mode, want_excl); rc = ll_mknod(dir, dentry, mode, 0); @@ -961,8 +957,8 @@ static int ll_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) { int err; - CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p)\n", - dentry, dir->i_ino, dir->i_generation, dir); + CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir"DFID"(%p)\n", + dentry, PFID(ll_inode2fid(dir)), dir); if (!IS_POSIXACL(dir) || !exp_connect_umask(ll_i2mdexp(dir))) mode &= ~current_umask(); @@ -981,8 +977,8 @@ static int ll_rmdir(struct inode *dir, struct dentry *dchild) struct md_op_data *op_data; int rc; - CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p)\n", - dchild, dir->i_ino, dir->i_generation, dir); + CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p)\n", + dchild, PFID(ll_inode2fid(dir)), dir); op_data = ll_prep_md_op_data(NULL, dir, NULL, dchild->d_name.name, @@ -1011,9 +1007,8 @@ static int ll_symlink(struct inode *dir, struct dentry *dentry, { int err; - CDEBUG(D_VFSTRACE, "VFS Op:name=%pd,dir=%lu/%u(%p),target=%.*s\n", - dentry, dir->i_ino, dir->i_generation, - dir, 3000, oldname); + CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir="DFID"(%p),target=%.*s\n", + dentry, PFID(ll_inode2fid(dir)), dir, 3000, oldname); err = ll_new_node(dir, dentry, oldname, S_IFLNK | S_IRWXUGO, 0, LUSTRE_OPC_SYMLINK); @@ -1033,10 +1028,9 @@ static int ll_link(struct dentry *old_dentry, struct inode *dir, struct md_op_data *op_data; int err; - CDEBUG(D_VFSTRACE, - "VFS Op: inode=%lu/%u(%p), dir=%lu/%u(%p), target=%pd\n", - src->i_ino, src->i_generation, src, dir->i_ino, - dir->i_generation, dir, new_dentry); + CDEBUG(D_VFSTRACE, "VFS Op: inode="DFID"(%p), dir="DFID"(%p), target=%pd\n", + PFID(ll_inode2fid(src)), src, PFID(ll_inode2fid(dir)), dir, + new_dentry); op_data = ll_prep_md_op_data(NULL, src, dir, new_dentry->d_name.name, new_dentry->d_name.len, @@ -1065,9 +1059,9 @@ static int ll_rename(struct inode *src, struct dentry *src_dchild, int err; CDEBUG(D_VFSTRACE, - "VFS Op:oldname=%pd,src_dir=%lu/%u(%p),newname=%pd,tgt_dir=%lu/%u(%p)\n", - src_dchild, src->i_ino, src->i_generation, src, - tgt_dchild, tgt->i_ino, tgt->i_generation, tgt); + "VFS Op:oldname=%pd, src_dir="DFID"(%p), newname=%pd, tgt_dir="DFID"(%p)\n", + src_dchild, PFID(ll_inode2fid(src)), src, + tgt_dchild, PFID(ll_inode2fid(tgt)), tgt); op_data = ll_prep_md_op_data(NULL, src, tgt, NULL, 0, 0, LUSTRE_OPC_ANY, NULL); diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index cad6aa9..a740c7a 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -365,9 +365,8 @@ static ssize_t ll_direct_IO_26(struct kiocb *iocb, struct iov_iter *iter, if ((file_offset & ~PAGE_MASK) || (count & ~PAGE_MASK)) return -EINVAL; - CDEBUG(D_VFSTRACE, - "VFS Op:inode=%lu/%u(%p), size=%zd (max %lu), offset=%lld=%llx, pages %zd (max %lu)\n", - inode->i_ino, inode->i_generation, inode, count, MAX_DIO_SIZE, + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), size=%zd (max %lu), offset=%lld=%llx, pages %zd (max %lu)\n", + PFID(ll_inode2fid(inode)), inode, count, MAX_DIO_SIZE, file_offset, file_offset, count >> PAGE_SHIFT, MAX_DIO_SIZE >> PAGE_SHIFT); diff --git a/drivers/staging/lustre/lustre/llite/statahead.c b/drivers/staging/lustre/lustre/llite/statahead.c index 99ffd15..6322f88 100644 --- a/drivers/staging/lustre/lustre/llite/statahead.c +++ b/drivers/staging/lustre/lustre/llite/statahead.c @@ -661,8 +661,9 @@ static void ll_post_statahead(struct ll_statahead_info *sai) if (rc) goto out; - CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n", - child, child->i_ino, child->i_generation); + CDEBUG(D_DLMTRACE, "%s: setting l_data to inode "DFID"%p\n", + ll_get_fsname(child->i_sb, NULL, 0), + PFID(ll_inode2fid(child)), child); ll_set_lock_data(ll_i2sbi(dir)->ll_md_exp, child, it, NULL); entry->se_inode = child; @@ -1591,13 +1592,11 @@ int do_statahead_enter(struct inode *dir, struct dentry **dentryp, *dentryp = alias; } else if (d_inode(*dentryp) != inode) { /* revalidate, but inode is recreated */ - CDEBUG(D_READA, - "stale dentry %pd inode %lu/%u, statahead inode %lu/%u\n", - *dentryp, - d_inode(*dentryp)->i_ino, - d_inode(*dentryp)->i_generation, - inode->i_ino, - inode->i_generation); + CDEBUG(D_READA, "%s: stale dentry %pd inode "DFID", statahead inode "DFID"\n", + ll_get_fsname(d_inode(*dentryp)->i_sb, NULL, 0), + *dentryp, + PFID(ll_inode2fid(d_inode(*dentryp))), + PFID(ll_inode2fid(inode))); ll_sai_unplug(sai, entry); return -ESTALE; } else { diff --git a/drivers/staging/lustre/lustre/llite/symlink.c b/drivers/staging/lustre/lustre/llite/symlink.c index 46d03ea..3fc736c 100644 --- a/drivers/staging/lustre/lustre/llite/symlink.c +++ b/drivers/staging/lustre/lustre/llite/symlink.c @@ -77,7 +77,9 @@ static int ll_readlink_internal(struct inode *inode, ll_finish_md_op_data(op_data); if (rc) { if (rc != -ENOENT) - CERROR("inode %lu: rc = %d\n", inode->i_ino, rc); + CERROR("%s: inode "DFID": rc = %d\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(ll_inode2fid(inode)), rc); goto failed; } @@ -90,8 +92,10 @@ static int ll_readlink_internal(struct inode *inode, LASSERT(symlen != 0); if (body->eadatasize != symlen) { - CERROR("inode %lu: symlink length %d not expected %d\n", - inode->i_ino, body->eadatasize - 1, symlen - 1); + CERROR("%s: inode "DFID": symlink length %d not expected %d\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(ll_inode2fid(inode)), body->eadatasize - 1, + symlen - 1); rc = -EPROTO; goto failed; } diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 644a31f..47101de 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -532,15 +532,14 @@ static void vvp_pgcache_page_show(const struct lu_env *env, vpg = cl2vvp_page(cl_page_at(page, &vvp_device_type)); vmpage = vpg->vpg_page; - seq_printf(seq, " %5i | %p %p %s %s %s %s | %p %lu/%u(%p) %lu %u [", + seq_printf(seq, " %5i | %p %p %s %s %s %s | %p "DFID"(%p) %lu %u [", 0 /* gen */, vpg, page, "none", vpg->vpg_write_queued ? "wq" : "- ", vpg->vpg_defer_uptodate ? "du" : "- ", PageWriteback(vmpage) ? "wb" : "-", - vmpage, vmpage->mapping->host->i_ino, - vmpage->mapping->host->i_generation, + vmpage, PFID(ll_inode2fid(vmpage->mapping->host)), vmpage->mapping->host, vmpage->index, page_count(vmpage)); has_flags = 0; diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c index 43b2d08..6f2e6c3 100644 --- a/drivers/staging/lustre/lustre/llite/xattr.c +++ b/drivers/staging/lustre/lustre/llite/xattr.c @@ -219,8 +219,8 @@ int ll_setxattr(struct dentry *dentry, const char *name, LASSERT(inode); LASSERT(name); - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n", - inode->i_ino, inode->i_generation, inode, name); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), xattr %s\n", + PFID(ll_inode2fid(inode)), inode, name); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETXATTR, 1); @@ -273,8 +273,8 @@ int ll_removexattr(struct dentry *dentry, const char *name) LASSERT(inode); LASSERT(name); - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n", - inode->i_ino, inode->i_generation, inode, name); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), xattr %s\n", + PFID(ll_inode2fid(inode)), inode, name); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_REMOVEXATTR, 1); return ll_setxattr_common(inode, name, NULL, 0, 0, @@ -293,8 +293,8 @@ int ll_getxattr_common(struct inode *inode, const char *name, struct rmtacl_ctl_entry *rce = NULL; struct ll_inode_info *lli = ll_i2info(inode); - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", - inode->i_ino, inode->i_generation, inode); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", + PFID(ll_inode2fid(inode)), inode); /* listxattr have slightly different behavior from of ext3: * without 'user_xattr' ext3 will list all xattr names but @@ -458,8 +458,8 @@ ssize_t ll_getxattr(struct dentry *dentry, const char *name, LASSERT(inode); LASSERT(name); - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n", - inode->i_ino, inode->i_generation, inode, name); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), xattr %s\n", + PFID(ll_inode2fid(inode)), inode, name); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_GETXATTR, 1); @@ -553,8 +553,8 @@ ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size) LASSERT(inode); - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", - inode->i_ino, inode->i_generation, inode); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", + PFID(ll_inode2fid(inode)), inode); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LISTXATTR, 1); -- cgit v0.10.2 From 72a50e4f303f051761612436e7ad75562abe0113 Mon Sep 17 00:00:00 2001 From: Niu Yawei Date: Wed, 27 Apr 2016 18:21:02 -0400 Subject: staging: lustre: clio: add debug message in osc_completion() Replace LASSERT with LASSERTF in osc_completion, thus we can get more info when the LASSERT is triggered. Signed-off-by: Niu Yawei Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3843 Reviewed-on: http://review.whamcloud.com/7494 Reviewed-by: Bobi Jam Reviewed-by: Jinshan Xiong Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index dccd309..de28e42 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -1333,8 +1333,10 @@ static int osc_completion(const struct lu_env *env, struct osc_async_page *oap, int srvlock; cmd &= ~OBD_BRW_NOQUOTA; - LASSERT(equi(page->cp_state == CPS_PAGEIN, cmd == OBD_BRW_READ)); - LASSERT(equi(page->cp_state == CPS_PAGEOUT, cmd == OBD_BRW_WRITE)); + LASSERTF(equi(page->cp_state == CPS_PAGEIN, cmd == OBD_BRW_READ), + "cp_state:%u, cmd:%d\n", page->cp_state, cmd); + LASSERTF(equi(page->cp_state == CPS_PAGEOUT, cmd == OBD_BRW_WRITE), + "cp_state:%u, cmd:%d\n", page->cp_state, cmd); LASSERT(opg->ops_transfer_pinned); /* -- cgit v0.10.2 From 7bbe9f838e17a1abcfc74c874739e2b0418899b0 Mon Sep 17 00:00:00 2001 From: Sebastien Buisson Date: Wed, 27 Apr 2016 18:21:03 -0400 Subject: staging: lustre: mgc: fix 'error handling' issues Fix 'error handling' issues found by Coverity version 6.6.1: Unchecked return value (CHECKED_RETURN) Calling function without checking return value. Argument cannot be negative (NEGATIVE_RETURNS) Negative value used as argument to a function expecting a positive value. Signed-off-by: Sebastien Buisson Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4055 Reviewed-on: http://review.whamcloud.com/7842 Reviewed-by: Dmitry Eremin Reviewed-by: James Nunez Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c index 933f6f6..2311a43 100644 --- a/drivers/staging/lustre/lustre/mgc/mgc_request.c +++ b/drivers/staging/lustre/lustre/mgc/mgc_request.c @@ -502,8 +502,12 @@ static void do_requeue(struct config_llog_data *cld) */ down_read(&cld->cld_mgcexp->exp_obd->u.cli.cl_sem); if (cld->cld_mgcexp->exp_obd->u.cli.cl_conn_count != 0) { + int rc; + CDEBUG(D_MGC, "updating log %s\n", cld->cld_logname); - mgc_process_log(cld->cld_mgcexp->exp_obd, cld); + rc = mgc_process_log(cld->cld_mgcexp->exp_obd, cld); + if (rc && rc != -ENOENT) + CERROR("failed processing log: %d\n", rc); } else { CDEBUG(D_MGC, "disconnecting, won't update log %s\n", cld->cld_logname); -- cgit v0.10.2 From ac5b14810952b659438c015478348c93eda91c25 Mon Sep 17 00:00:00 2001 From: Prakash Surya Date: Wed, 27 Apr 2016 18:21:04 -0400 Subject: staging: lustre: osc: Track and limit "unstable" pages This change adds a global counter to track the number of "unstable" pages held by a given client, along with per file system counters. An "unstable" page is defined as a page which has been sent to the server as part of a bulk request, but is uncommitted to stable storage. In addition to simply tracking the unstable pages, they now also count towards the maximum number of "pinned" pages on the system at any given time. Thus, a client will now be bound on the number of dirty and unstable pages it can pin in memory. Previously only dirty pages were accounted for in this limit. In addition to tracking the number of unstable pages in Lustre, the NR_UNSTABLE_NFS memory zone is also incremented and decremented for easy monitoring using the "NFS_Unstable:" field in /proc/meminfo. This field is also used internally by the kernel to limit the total amount of unstable pages on the system. The motivation for this change is twofold. First, the client must not allow itself to disconnect from an OST while still holding unstable pages. Otherwise, these unstable pages can get lost due to an OST failure, and replay is not possible due to the disconnect via unmount. Secondly, the client needs a mechanism to prevent it from allocating too much of its available RAM to unreclaimable pages pinned by the ptlrpc layer. If this case occurs, out of memory events can trigger as a side effect, which we need to avoid. The current number of unstable pages accounted for on a per file system granularity is exported by the unstable_stats proc file, contained under each file system's llite namespace. An example of retrieving this information is below: $ lctl get_param llite.*.unstable_stats Signed-off-by: Prakash Surya Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2139 Reviewed-on: http://review.whamcloud.com/6284 Reviewed-by: Jinshan Xiong Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index 918be65..587a236 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -2351,6 +2351,16 @@ struct cl_client_cache { * Lock to protect ccc_lru list */ spinlock_t ccc_lru_lock; + /** + * # of unstable pages for this mount point + */ + atomic_t ccc_unstable_nr; + /** + * Waitq for awaiting unstable pages to reach zero. + * Used at umounting time and signaled on BRW commit + */ + wait_queue_head_t ccc_unstable_waitq; + }; /** @} cl_page */ diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h index 69586a5..a7973d5 100644 --- a/drivers/staging/lustre/lustre/include/lustre_net.h +++ b/drivers/staging/lustre/lustre/include/lustre_net.h @@ -1327,7 +1327,9 @@ struct ptlrpc_request { /* allow the req to be sent if the import is in recovery * status */ - rq_allow_replay:1; + rq_allow_replay:1, + /* bulk request, sent to server, but uncommitted */ + rq_unstable:1; unsigned int rq_nr_resend; diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index e97e25b..3f24a5b 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -477,7 +477,7 @@ struct lov_obd { struct dentry *lov_pool_debugfs_entry; enum lustre_sec_part lov_sp_me; - /* Cached LRU pages from upper layer */ + /* Cached LRU and unstable data from upper layer */ void *lov_cache; struct rw_semaphore lov_notify_lock; diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h index f8ee3a3..c7267b7 100644 --- a/drivers/staging/lustre/lustre/include/obd_support.h +++ b/drivers/staging/lustre/lustre/include/obd_support.h @@ -58,6 +58,7 @@ extern int at_early_margin; extern int at_extra; extern unsigned int obd_sync_filter; extern unsigned int obd_max_dirty_pages; +extern atomic_t obd_unstable_pages; extern atomic_t obd_dirty_pages; extern atomic_t obd_dirty_transit_pages; extern char obd_jobid_var[]; diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 2c6ae05..59e8ab1 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -491,6 +491,12 @@ struct ll_sb_info { struct lprocfs_stats *ll_stats; /* lprocfs stats counter */ + /* + * Used to track "unstable" pages on a client, and maintain a + * LRU list of clean pages. An "unstable" page is defined as + * any page which is sent to a server as part of a bulk request, + * but is uncommitted to stable storage. + */ struct cl_client_cache ll_cache; struct lprocfs_stats *ll_ra_stats; diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 55cddc7..8d88d4c 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -87,13 +87,16 @@ static struct ll_sb_info *ll_init_sbi(struct super_block *sb) pages = si.totalram - si.totalhigh; lru_page_max = pages / 2; - /* initialize lru data */ + /* initialize ll_cache data */ atomic_set(&sbi->ll_cache.ccc_users, 0); sbi->ll_cache.ccc_lru_max = lru_page_max; atomic_set(&sbi->ll_cache.ccc_lru_left, lru_page_max); spin_lock_init(&sbi->ll_cache.ccc_lru_lock); INIT_LIST_HEAD(&sbi->ll_cache.ccc_lru); + atomic_set(&sbi->ll_cache.ccc_unstable_nr, 0); + init_waitqueue_head(&sbi->ll_cache.ccc_unstable_waitq); + sbi->ll_ra_info.ra_max_pages_per_file = min(pages / 32, SBI_DEFAULT_READAHEAD_MAX); sbi->ll_ra_info.ra_max_pages = sbi->ll_ra_info.ra_max_pages_per_file; @@ -946,7 +949,7 @@ void ll_put_super(struct super_block *sb) struct lustre_sb_info *lsi = s2lsi(sb); struct ll_sb_info *sbi = ll_s2sbi(sb); char *profilenm = get_profile_name(sb); - int next, force = 1; + int ccc_count, next, force = 1, rc = 0; CDEBUG(D_VFSTRACE, "VFS Op: sb %p - %s\n", sb, profilenm); @@ -962,6 +965,19 @@ void ll_put_super(struct super_block *sb) force = obd->obd_force; } + /* Wait for unstable pages to be committed to stable storage */ + if (!force) { + struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL); + + rc = l_wait_event(sbi->ll_cache.ccc_unstable_waitq, + !atomic_read(&sbi->ll_cache.ccc_unstable_nr), + &lwi); + } + + ccc_count = atomic_read(&sbi->ll_cache.ccc_unstable_nr); + if (!force && rc != -EINTR) + LASSERTF(!ccc_count, "count: %i\n", ccc_count); + /* We need to set force before the lov_disconnect in * lustre_common_put_super, since l_d cleans up osc's as well. */ diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c index 501b93b..55d62eb 100644 --- a/drivers/staging/lustre/lustre/llite/lproc_llite.c +++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c @@ -824,6 +824,23 @@ static ssize_t xattr_cache_store(struct kobject *kobj, } LUSTRE_RW_ATTR(xattr_cache); +static ssize_t unstable_stats_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kobj); + struct cl_client_cache *cache = &sbi->ll_cache; + int pages, mb; + + pages = atomic_read(&cache->ccc_unstable_nr); + mb = (pages * PAGE_SIZE) >> 20; + + return sprintf(buf, "unstable_pages: %8d\n" + "unstable_mb: %8d\n", pages, mb); +} +LUSTRE_RO_ATTR(unstable_stats); + static struct lprocfs_vars lprocfs_llite_obd_vars[] = { /* { "mntpt_path", ll_rd_path, 0, 0 }, */ { "site", &ll_site_stats_fops, NULL, 0 }, @@ -859,6 +876,7 @@ static struct attribute *llite_attrs[] = { &lustre_attr_max_easize.attr, &lustre_attr_default_easize.attr, &lustre_attr_xattr_cache.attr, + &lustre_attr_unstable_stats.attr, NULL, }; diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c index a3c7e7b..f48816a 100644 --- a/drivers/staging/lustre/lustre/obdclass/class_obd.c +++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c @@ -60,6 +60,8 @@ unsigned int obd_dump_on_eviction; EXPORT_SYMBOL(obd_dump_on_eviction); unsigned int obd_max_dirty_pages = 256; EXPORT_SYMBOL(obd_max_dirty_pages); +atomic_t obd_unstable_pages; +EXPORT_SYMBOL(obd_unstable_pages); atomic_t obd_dirty_pages; EXPORT_SYMBOL(obd_dirty_pages); unsigned int obd_timeout = OBD_TIMEOUT_DEFAULT; /* seconds */ diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index de28e42..5cd8eef 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -1388,11 +1388,13 @@ static int osc_completion(const struct lu_env *env, struct osc_async_page *oap, #define OSC_DUMP_GRANT(lvl, cli, fmt, args...) do { \ struct client_obd *__tmp = (cli); \ CDEBUG(lvl, "%s: grant { dirty: %ld/%ld dirty_pages: %d/%d " \ - "dropped: %ld avail: %ld, reserved: %ld, flight: %d } " \ - "lru {in list: %d, left: %d, waiters: %d }" fmt, \ + "unstable_pages: %d/%d dropped: %ld avail: %ld, " \ + "reserved: %ld, flight: %d } lru {in list: %d, " \ + "left: %d, waiters: %d }" fmt, \ __tmp->cl_import->imp_obd->obd_name, \ __tmp->cl_dirty, __tmp->cl_dirty_max, \ atomic_read(&obd_dirty_pages), obd_max_dirty_pages, \ + atomic_read(&obd_unstable_pages), obd_max_dirty_pages, \ __tmp->cl_lost_grant, __tmp->cl_avail_grant, \ __tmp->cl_reserved_grant, __tmp->cl_w_in_flight, \ atomic_read(&__tmp->cl_lru_in_list), \ @@ -1544,7 +1546,8 @@ static int osc_enter_cache_try(struct client_obd *cli, return 0; if (cli->cl_dirty + PAGE_SIZE <= cli->cl_dirty_max && - atomic_read(&obd_dirty_pages) + 1 <= obd_max_dirty_pages) { + atomic_read(&obd_unstable_pages) + 1 + + atomic_read(&obd_dirty_pages) <= obd_max_dirty_pages) { osc_consume_write_grant(cli, &oap->oap_brw_page); if (transient) { cli->cl_dirty_transit += PAGE_SIZE; @@ -1672,8 +1675,8 @@ void osc_wake_cache_waiters(struct client_obd *cli) ocw->ocw_rc = -EDQUOT; /* we can't dirty more */ if ((cli->cl_dirty + PAGE_SIZE > cli->cl_dirty_max) || - (atomic_read(&obd_dirty_pages) + 1 > - obd_max_dirty_pages)) { + (atomic_read(&obd_unstable_pages) + 1 + + atomic_read(&obd_dirty_pages) > obd_max_dirty_pages)) { CDEBUG(D_CACHE, "no dirty room: dirty: %ld osc max %ld, sys max %d\n", cli->cl_dirty, cli->cl_dirty_max, obd_max_dirty_pages); @@ -1844,6 +1847,89 @@ static void osc_process_ar(struct osc_async_rc *ar, __u64 xid, ar->ar_force_sync = 0; } +/** + * Performs "unstable" page accounting. This function balances the + * increment operations performed in osc_inc_unstable_pages. It is + * registered as the RPC request callback, and is executed when the + * bulk RPC is committed on the server. Thus at this point, the pages + * involved in the bulk transfer are no longer considered unstable. + */ +void osc_dec_unstable_pages(struct ptlrpc_request *req) +{ + struct client_obd *cli = &req->rq_import->imp_obd->u.cli; + struct ptlrpc_bulk_desc *desc = req->rq_bulk; + int page_count = desc->bd_iov_count; + int i; + + /* No unstable page tracking */ + if (!cli->cl_cache) + return; + + LASSERT(page_count >= 0); + + for (i = 0; i < page_count; i++) + dec_zone_page_state(desc->bd_iov[i].kiov_page, NR_UNSTABLE_NFS); + + atomic_sub(page_count, &cli->cl_cache->ccc_unstable_nr); + LASSERT(atomic_read(&cli->cl_cache->ccc_unstable_nr) >= 0); + + atomic_sub(page_count, &obd_unstable_pages); + LASSERT(atomic_read(&obd_unstable_pages) >= 0); + + spin_lock(&req->rq_lock); + req->rq_committed = 1; + req->rq_unstable = 0; + spin_unlock(&req->rq_lock); + + wake_up_all(&cli->cl_cache->ccc_unstable_waitq); +} + +/* "unstable" page accounting. See: osc_dec_unstable_pages. */ +void osc_inc_unstable_pages(struct ptlrpc_request *req) +{ + struct client_obd *cli = &req->rq_import->imp_obd->u.cli; + struct ptlrpc_bulk_desc *desc = req->rq_bulk; + long page_count = desc->bd_iov_count; + int i; + + /* No unstable page tracking */ + if (!cli->cl_cache) + return; + + LASSERT(page_count >= 0); + + for (i = 0; i < page_count; i++) + inc_zone_page_state(desc->bd_iov[i].kiov_page, NR_UNSTABLE_NFS); + + LASSERT(atomic_read(&cli->cl_cache->ccc_unstable_nr) >= 0); + atomic_add(page_count, &cli->cl_cache->ccc_unstable_nr); + + LASSERT(atomic_read(&obd_unstable_pages) >= 0); + atomic_add(page_count, &obd_unstable_pages); + + spin_lock(&req->rq_lock); + + /* + * If the request has already been committed (i.e. brw_commit + * called via rq_commit_cb), we need to undo the unstable page + * increments we just performed because rq_commit_cb wont be + * called again. Otherwise, just set the commit callback so the + * unstable page accounting is properly updated when the request + * is committed + */ + if (req->rq_committed) { + /* Drop lock before calling osc_dec_unstable_pages */ + spin_unlock(&req->rq_lock); + osc_dec_unstable_pages(req); + spin_lock(&req->rq_lock); + } else { + req->rq_unstable = 1; + req->rq_commit_cb = osc_dec_unstable_pages; + } + + spin_unlock(&req->rq_lock); +} + /* this must be called holding the loi list lock to give coverage to exit_cache, * async_flag maintenance, and oap_request */ @@ -1855,6 +1941,9 @@ static void osc_ap_completion(const struct lu_env *env, struct client_obd *cli, __u64 xid = 0; if (oap->oap_request) { + if (!rc) + osc_inc_unstable_pages(oap->oap_request); + xid = ptlrpc_req_xid(oap->oap_request); ptlrpc_req_finished(oap->oap_request); oap->oap_request = NULL; diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h index cf9f8b7..39e6138 100644 --- a/drivers/staging/lustre/lustre/osc/osc_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_internal.h @@ -200,6 +200,9 @@ int osc_quotactl(struct obd_device *unused, struct obd_export *exp, int osc_quotacheck(struct obd_device *unused, struct obd_export *exp, struct obd_quotactl *oqctl); int osc_quota_poll_check(struct obd_export *exp, struct if_quotacheck *qchk); +void osc_inc_unstable_pages(struct ptlrpc_request *req); +void osc_dec_unstable_pages(struct ptlrpc_request *req); + struct ldlm_lock *osc_dlmlock_at_pgoff(const struct lu_env *env, struct osc_object *obj, pgoff_t index, int pending, int canceling); diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index e5794fb..e8a80eb 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -809,14 +809,17 @@ static void osc_announce_cached(struct client_obd *cli, struct obdo *oa, CERROR("dirty %lu - %lu > dirty_max %lu\n", cli->cl_dirty, cli->cl_dirty_transit, cli->cl_dirty_max); oa->o_undirty = 0; - } else if (unlikely(atomic_read(&obd_dirty_pages) - + } else if (unlikely(atomic_read(&obd_unstable_pages) + + atomic_read(&obd_dirty_pages) - atomic_read(&obd_dirty_transit_pages) > (long)(obd_max_dirty_pages + 1))) { /* The atomic_read() allowing the atomic_inc() are * not covered by a lock thus they may safely race and trip * this CERROR() unless we add in a small fudge factor (+1). */ - CERROR("dirty %d - %d > system dirty_max %d\n", + CERROR("%s: dirty %d + %d - %d > system dirty_max %d\n", + cli->cl_import->imp_obd->obd_name, + atomic_read(&obd_unstable_pages), atomic_read(&obd_dirty_pages), atomic_read(&obd_dirty_transit_pages), obd_max_dirty_pages); @@ -1655,6 +1658,7 @@ static int osc_brw_redo_request(struct ptlrpc_request *request, aa->aa_resends++; new_req->rq_interpret_reply = request->rq_interpret_reply; new_req->rq_async_args = request->rq_async_args; + new_req->rq_commit_cb = request->rq_commit_cb; /* cap resend delay to the current request timeout, this is similar to * what ptlrpc does (see after_reply()) */ @@ -1843,6 +1847,25 @@ static int brw_interpret(const struct lu_env *env, return rc; } +static void brw_commit(struct ptlrpc_request *req) +{ + spin_lock(&req->rq_lock); + /* + * If osc_inc_unstable_pages (via osc_extent_finish) races with + * this called via the rq_commit_cb, I need to ensure + * osc_dec_unstable_pages is still called. Otherwise unstable + * pages may be leaked. + */ + if (req->rq_unstable) { + spin_unlock(&req->rq_lock); + osc_dec_unstable_pages(req); + spin_lock(&req->rq_lock); + } else { + req->rq_committed = 1; + } + spin_unlock(&req->rq_lock); +} + /** * Build an RPC by the list of extent @ext_list. The caller must ensure * that the total pages in this list are NOT over max pages per RPC. @@ -1962,6 +1985,7 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, goto out; } + req->rq_commit_cb = brw_commit; req->rq_interpret_reply = brw_interpret; if (mem_tight != 0) -- cgit v0.10.2 From dece0b95dd358de8f5e36c605f079ce8e1aab23d Mon Sep 17 00:00:00 2001 From: Prakash Surya Date: Wed, 27 Apr 2016 18:21:05 -0400 Subject: staging: lustre: osc: Track number of "unstable" pages per osc This change adds simple accounting hooks for "unstable" pages on a per OSC basis. Now, in addition to the per filesystem tracking, each OSC will maintain a running total of its unstable pages. These counters are exported through the proc interface, and can be read using the lctl command. For example: # Read number of unstable pages contained by each OSC lctl get_param osc.*.unstable_stats The motivation for this change is in anticipation of implementing a "soft sync" functionality, urging servers to commit these unstable pages to stable storage. The per OSC accounting allows a client to limit the soft sync request to only the OSCs which have outstanding unstable pages. Signed-off-by: Prakash Surya Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2139 Reviewed-on: http://review.whamcloud.com/4374 Reviewed-by: Jinshan Xiong Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index 3f24a5b..d0c0c26 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -325,6 +325,7 @@ struct client_obd { atomic_t cl_lru_in_list; struct list_head cl_lru_list; /* lru page list */ spinlock_t cl_lru_list_lock; /* page list protector */ + atomic_t cl_unstable_count; /* number of in flight destroy rpcs is limited to max_rpcs_in_flight */ atomic_t cl_destroy_in_flight; diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c index bc951c0..32486b2 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c @@ -334,6 +334,7 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg) atomic_set(&cli->cl_lru_in_list, 0); INIT_LIST_HEAD(&cli->cl_lru_list); spin_lock_init(&cli->cl_lru_list_lock); + atomic_set(&cli->cl_unstable_count, 0); init_waitqueue_head(&cli->cl_destroy_waitq); atomic_set(&cli->cl_destroy_in_flight, 0); diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c index 6e57f53..33a1132 100644 --- a/drivers/staging/lustre/lustre/osc/lproc_osc.c +++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c @@ -593,6 +593,23 @@ static ssize_t max_pages_per_rpc_store(struct kobject *kobj, } LUSTRE_RW_ATTR(max_pages_per_rpc); +static ssize_t unstable_stats_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct obd_device *dev = container_of(kobj, struct obd_device, + obd_kobj); + struct client_obd *cli = &dev->u.cli; + int pages, mb; + + pages = atomic_read(&cli->cl_unstable_count); + mb = (pages * PAGE_SIZE) >> 20; + + return sprintf(buf, "unstable_pages: %8d\n" + "unstable_mb: %8d\n", pages, mb); +} +LUSTRE_RO_ATTR(unstable_stats); + LPROC_SEQ_FOPS_RO_TYPE(osc, connect_flags); LPROC_SEQ_FOPS_RO_TYPE(osc, server_uuid); LPROC_SEQ_FOPS_RO_TYPE(osc, conn_uuid); @@ -802,6 +819,7 @@ static struct attribute *osc_attrs[] = { &lustre_attr_max_pages_per_rpc.attr, &lustre_attr_max_rpcs_in_flight.attr, &lustre_attr_resend_count.attr, + &lustre_attr_unstable_stats.attr, NULL, }; diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index 5cd8eef..7d1c2c5 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -1873,6 +1873,9 @@ void osc_dec_unstable_pages(struct ptlrpc_request *req) atomic_sub(page_count, &cli->cl_cache->ccc_unstable_nr); LASSERT(atomic_read(&cli->cl_cache->ccc_unstable_nr) >= 0); + atomic_sub(page_count, &cli->cl_unstable_count); + LASSERT(atomic_read(&cli->cl_unstable_count) >= 0); + atomic_sub(page_count, &obd_unstable_pages); LASSERT(atomic_read(&obd_unstable_pages) >= 0); @@ -1904,6 +1907,9 @@ void osc_inc_unstable_pages(struct ptlrpc_request *req) LASSERT(atomic_read(&cli->cl_cache->ccc_unstable_nr) >= 0); atomic_add(page_count, &cli->cl_cache->ccc_unstable_nr); + LASSERT(atomic_read(&cli->cl_unstable_count) >= 0); + atomic_add(page_count, &cli->cl_unstable_count); + LASSERT(atomic_read(&obd_unstable_pages) >= 0); atomic_add(page_count, &obd_unstable_pages); -- cgit v0.10.2 From ad479287b4e637ac098e5ebd5dabfa2826e27d4c Mon Sep 17 00:00:00 2001 From: Prakash Surya Date: Wed, 27 Apr 2016 18:21:06 -0400 Subject: staging: lustre: osc: Use SOFT_SYNC to urge server commit This change adds a BRW page flag, OBD_BRW_SOFT_SYNC. This flag is intended to urge a server to commit a client's unstable pages to stable storage. A client will add this flag to any BRW requests while it is in a state where it has "many" unstable pages pinned in its cache. The server, upon receiving a page with this flag set, *should* begin an async commit. The idea being that, with the proactive async commit, the client's pinned unstable pages will transition into a stable state faster than they would have otherwise. Although, the server side portion of this agreement is still unimplemented, so the OBD_BRW_SOFT_SYNC flag will currently fall on deaf ears. Signed-off-by: Prakash Surya Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2139 Reviewed-on: http://review.whamcloud.com/4375 Reviewed-by: Jinshan Xiong Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h index c3565bf..26819ee 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h @@ -1734,6 +1734,11 @@ void lustre_swab_obd_statfs(struct obd_statfs *os); #define OBD_BRW_MEMALLOC 0x800 /* Client runs in the "kswapd" context */ #define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */ #define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */ +#define OBD_BRW_SOFT_SYNC 0x4000 /* This flag notifies the server + * that the client is running low on + * space for unstable pages; asking + * it to sync quickly + */ #define OBD_OBJECT_EOF 0xffffffffffffffffULL diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c index 7d1c2c5..5a14bea 100644 --- a/drivers/staging/lustre/lustre/osc/osc_cache.c +++ b/drivers/staging/lustre/lustre/osc/osc_cache.c @@ -2437,6 +2437,9 @@ int osc_queue_async_io(const struct lu_env *env, struct cl_io *io, return rc; } + if (osc_over_unstable_soft_limit(cli)) + brw_flags |= OBD_BRW_SOFT_SYNC; + oap->oap_cmd = cmd; oap->oap_page_off = ops->ops_from; oap->oap_count = ops->ops_to - ops->ops_from; diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h index 39e6138..7fad827 100644 --- a/drivers/staging/lustre/lustre/osc/osc_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_internal.h @@ -202,6 +202,7 @@ int osc_quotacheck(struct obd_device *unused, struct obd_export *exp, int osc_quota_poll_check(struct obd_export *exp, struct if_quotacheck *qchk); void osc_inc_unstable_pages(struct ptlrpc_request *req); void osc_dec_unstable_pages(struct ptlrpc_request *req); +int osc_over_unstable_soft_limit(struct client_obd *cli); struct ldlm_lock *osc_dlmlock_at_pgoff(const struct lu_env *env, struct osc_object *obj, pgoff_t index, diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c index 5ec5508..c29c2ea 100644 --- a/drivers/staging/lustre/lustre/osc/osc_page.c +++ b/drivers/staging/lustre/lustre/osc/osc_page.c @@ -346,6 +346,32 @@ int osc_page_init(const struct lu_env *env, struct cl_object *obj, return result; } +int osc_over_unstable_soft_limit(struct client_obd *cli) +{ + long obd_upages, obd_dpages, osc_upages; + + /* Can't check cli->cl_unstable_count, therefore, no soft limit */ + if (!cli) + return 0; + + obd_upages = atomic_read(&obd_unstable_pages); + obd_dpages = atomic_read(&obd_dirty_pages); + + osc_upages = atomic_read(&cli->cl_unstable_count); + + /* + * obd_max_dirty_pages is the max number of (dirty + unstable) + * pages allowed at any given time. To simulate an unstable page + * only limit, we subtract the current number of dirty pages + * from this max. This difference is roughly the amount of pages + * currently available for unstable pages. Thus, the soft limit + * is half of that difference. Check osc_upages to ensure we don't + * set SOFT_SYNC for OSCs without any outstanding unstable pages. + */ + return osc_upages && + obd_upages >= (obd_max_dirty_pages - obd_dpages) / 2; +} + /** * Helper function called by osc_io_submit() for every page in an immediate * transfer (i.e., transferred synchronously). @@ -369,6 +395,9 @@ void osc_page_submit(const struct lu_env *env, struct osc_page *opg, oap->oap_count = opg->ops_to - opg->ops_from; oap->oap_brw_flags = brw_flags | OBD_BRW_SYNC; + if (osc_over_unstable_soft_limit(oap->oap_cli)) + oap->oap_brw_flags |= OBD_BRW_SOFT_SYNC; + if (!client_is_remote(osc_export(obj)) && capable(CFS_CAP_SYS_RESOURCE)) { oap->oap_brw_flags |= OBD_BRW_NOQUOTA; diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index e8a80eb..df06f4f 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -1147,7 +1147,8 @@ static inline int can_merge_pages(struct brw_page *p1, struct brw_page *p2) { if (p1->flag != p2->flag) { unsigned mask = ~(OBD_BRW_FROM_GRANT | OBD_BRW_NOCACHE | - OBD_BRW_SYNC | OBD_BRW_ASYNC|OBD_BRW_NOQUOTA); + OBD_BRW_SYNC | OBD_BRW_ASYNC | + OBD_BRW_NOQUOTA | OBD_BRW_SOFT_SYNC); /* warn if we try to combine flags that we don't know to be * safe to combine diff --git a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c index 3ffd2d9..87555e4 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c +++ b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c @@ -1639,6 +1639,12 @@ void lustre_assert_wire_constants(void) OBD_BRW_ASYNC); LASSERTF(OBD_BRW_MEMALLOC == 0x800, "found 0x%.8x\n", OBD_BRW_MEMALLOC); + LASSERTF(OBD_BRW_OVER_USRQUOTA == 0x1000, "found 0x%.8x\n", + OBD_BRW_OVER_USRQUOTA); + LASSERTF(OBD_BRW_OVER_GRPQUOTA == 0x2000, "found 0x%.8x\n", + OBD_BRW_OVER_GRPQUOTA); + LASSERTF(OBD_BRW_SOFT_SYNC == 0x4000, "found 0x%.8x\n", + OBD_BRW_SOFT_SYNC); /* Checks for struct ost_body */ LASSERTF((int)sizeof(struct ost_body) == 208, "found %lld\n", -- cgit v0.10.2 From 35e458160d17a1382a476e3366b117d10ef1a59b Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Wed, 27 Apr 2016 18:21:07 -0400 Subject: staging: lustre: ptlrpc: quiet warning for 2.1/2.5 connections The Lustre 2.5.4 client will print a warning about connections with 2.1.3 servers, yet they are still supposed to be interoperable. Increase the window of warning to be up to Lustre 2.5.50, since we do not intend to allow interoperability between 2.1 and 2.6 systems. This was from the time when major releases like Lustre 1.4 and 1.8 were many years apart would have no chance for interoperation. Only print this message once per client, to avoid flooding the console for connections to many servers or frequent network reconnections. Server versions should all be nearly the same in any case. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2528 Reviewed-on: http://review.whamcloud.com/7916 Reviewed-by: Bob Glossman Reviewed-by: Jian Yu Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ptlrpc/import.c b/drivers/staging/lustre/lustre/ptlrpc/import.c index bf7b9d2..a4f7544 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/import.c +++ b/drivers/staging/lustre/lustre/ptlrpc/import.c @@ -1001,6 +1001,8 @@ finish: return 0; } } else { + static bool warned; + spin_lock(&imp->imp_lock); list_del(&imp->imp_conn_current->oic_item); list_add(&imp->imp_conn_current->oic_item, &imp->imp_conn_list); @@ -1020,7 +1022,7 @@ finish: goto out; } - if ((ocd->ocd_connect_flags & OBD_CONNECT_VERSION) && + if (!warned && (ocd->ocd_connect_flags & OBD_CONNECT_VERSION) && (ocd->ocd_version > LUSTRE_VERSION_CODE + LUSTRE_VERSION_OFFSET_WARN || ocd->ocd_version < LUSTRE_VERSION_CODE - @@ -1028,10 +1030,8 @@ finish: /* Sigh, some compilers do not like #ifdef in the middle * of macro arguments */ - const char *older = "older. Consider upgrading server or downgrading client" - ; - const char *newer = "newer than client version. Consider upgrading client" - ; + const char *older = "older than client. Consider upgrading server"; + const char *newer = "newer than client. Consider recompiling application"; LCONSOLE_WARN("Server %s version (%d.%d.%d.%d) is much %s (%s)\n", obd2cli_tgt(imp->imp_obd), @@ -1041,6 +1041,7 @@ finish: OBD_OCD_VERSION_FIX(ocd->ocd_version), ocd->ocd_version > LUSTRE_VERSION_CODE ? newer : older, LUSTRE_VERSION_STRING); + warned = true; } #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 2, 50, 0) -- cgit v0.10.2 From b828b9cac7479b2fd38a6c47143abf281e487e7d Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Wed, 27 Apr 2016 21:37:10 -0400 Subject: staging: lustre: obd: remove newline from LCONSOLE string Remove the newline from the LCONSOLE debug macro in the function class_config_dump_handler(). Signed-off-by: Amir Shehata Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2149 Reviewed-on: http://review.whamcloud.com/4254 Reviewed-by: Alex Zhuravlev Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c index ae38844..0afbc01 100644 --- a/drivers/staging/lustre/lustre/obdclass/obd_config.c +++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c @@ -1367,7 +1367,7 @@ int class_config_dump_handler(const struct lu_env *env, if (rec->lrh_type == OBD_CFG_REC) { class_config_parse_rec(rec, outstr, 256); - LCONSOLE(D_WARNING, " %s\n", outstr); + LCONSOLE(D_WARNING, " %s", outstr); } else { LCONSOLE(D_WARNING, "unhandled lrh_type: %#x\n", rec->lrh_type); rc = -EINVAL; -- cgit v0.10.2 From c4ab96e7ca43461dc535b0d22fd578e2c0a16aab Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Wed, 27 Apr 2016 21:37:11 -0400 Subject: staging: lustre: obd: add newline for dumped config record The function class_config_parse_rec() parses the llog record and places it into a buffer to be returned. That buffer needs to end with a newline which is currently missing. Signed-off-by: Amir Shehata Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2149 Reviewed-on: http://review.whamcloud.com/4254 Reviewed-by: Alex Zhuravlev Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c index 0afbc01..a3a2abc 100644 --- a/drivers/staging/lustre/lustre/obdclass/obd_config.c +++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c @@ -1349,6 +1349,7 @@ static int class_config_parse_rec(struct llog_rec_hdr *rec, char *buf, lustre_cfg_string(lcfg, i)); } } + ptr += snprintf(ptr, end - ptr, "\n"); /* return consumed bytes */ rc = ptr - buf; return rc; -- cgit v0.10.2 From 45fe5b139c46deb2bdd2752b7a42ce93fd56efc0 Mon Sep 17 00:00:00 2001 From: Mikhail Pershin Date: Wed, 27 Apr 2016 21:37:12 -0400 Subject: staging: lustre: ptlrpc: use unified handler for OST requests Switch OST/OFD request processing to the unified request handle. Signed-off-by: Mikhail Pershin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3467 Reviewed-on: http://review.whamcloud.com/7130 Reviewed-by: Andreas Dilger Reviewed-by: Alex Zhuravlev Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre_req_layout.h b/drivers/staging/lustre/lustre/include/lustre_req_layout.h index b2e67fc..b0bc751 100644 --- a/drivers/staging/lustre/lustre/include/lustre_req_layout.h +++ b/drivers/staging/lustre/lustre/include/lustre_req_layout.h @@ -199,7 +199,7 @@ extern struct req_format RQF_OST_BRW_READ; extern struct req_format RQF_OST_BRW_WRITE; extern struct req_format RQF_OST_STATFS; extern struct req_format RQF_OST_SET_GRANT_INFO; -extern struct req_format RQF_OST_GET_INFO_GENERIC; +extern struct req_format RQF_OST_GET_INFO; extern struct req_format RQF_OST_GET_INFO_LAST_ID; extern struct req_format RQF_OST_GET_INFO_LAST_FID; extern struct req_format RQF_OST_SET_INFO_LAST_FID; diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h index c7267b7..2aaa343 100644 --- a/drivers/staging/lustre/lustre/include/obd_support.h +++ b/drivers/staging/lustre/lustre/include/obd_support.h @@ -290,6 +290,7 @@ extern char obd_jobid_var[]; #define OBD_FAIL_OST_ENOINO 0x229 #define OBD_FAIL_OST_DQACQ_NET 0x230 #define OBD_FAIL_OST_STATFS_EINPROGRESS 0x231 +#define OBD_FAIL_OST_SET_INFO_NET 0x232 #define OBD_FAIL_LDLM 0x300 #define OBD_FAIL_LDLM_NAMESPACE_NEW 0x301 diff --git a/drivers/staging/lustre/lustre/ptlrpc/layout.c b/drivers/staging/lustre/lustre/ptlrpc/layout.c index 5b06901..ccc1f3e 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/layout.c +++ b/drivers/staging/lustre/lustre/ptlrpc/layout.c @@ -566,7 +566,7 @@ static const struct req_msg_field *ost_get_info_generic_server[] = { static const struct req_msg_field *ost_get_info_generic_client[] = { &RMF_PTLRPC_BODY, - &RMF_SETINFO_KEY + &RMF_GETINFO_KEY }; static const struct req_msg_field *ost_get_last_id_server[] = { @@ -574,6 +574,12 @@ static const struct req_msg_field *ost_get_last_id_server[] = { &RMF_OBD_ID }; +static const struct req_msg_field *ost_get_last_fid_client[] = { + &RMF_PTLRPC_BODY, + &RMF_GETINFO_KEY, + &RMF_FID, +}; + static const struct req_msg_field *ost_get_last_fid_server[] = { &RMF_PTLRPC_BODY, &RMF_FID, @@ -696,7 +702,7 @@ static struct req_format *req_formats[] = { &RQF_OST_BRW_WRITE, &RQF_OST_STATFS, &RQF_OST_SET_GRANT_INFO, - &RQF_OST_GET_INFO_GENERIC, + &RQF_OST_GET_INFO, &RQF_OST_GET_INFO_LAST_ID, &RQF_OST_GET_INFO_LAST_FID, &RQF_OST_SET_INFO_LAST_FID, @@ -1519,10 +1525,10 @@ struct req_format RQF_OST_SET_GRANT_INFO = ost_body_only); EXPORT_SYMBOL(RQF_OST_SET_GRANT_INFO); -struct req_format RQF_OST_GET_INFO_GENERIC = +struct req_format RQF_OST_GET_INFO = DEFINE_REQ_FMT0("OST_GET_INFO", ost_get_info_generic_client, ost_get_info_generic_server); -EXPORT_SYMBOL(RQF_OST_GET_INFO_GENERIC); +EXPORT_SYMBOL(RQF_OST_GET_INFO); struct req_format RQF_OST_GET_INFO_LAST_ID = DEFINE_REQ_FMT0("OST_GET_INFO_LAST_ID", ost_get_info_generic_client, @@ -1530,7 +1536,7 @@ struct req_format RQF_OST_GET_INFO_LAST_ID = EXPORT_SYMBOL(RQF_OST_GET_INFO_LAST_ID); struct req_format RQF_OST_GET_INFO_LAST_FID = - DEFINE_REQ_FMT0("OST_GET_INFO_LAST_FID", obd_set_info_client, + DEFINE_REQ_FMT0("OST_GET_INFO_LAST_FID", ost_get_last_fid_client, ost_get_last_fid_server); EXPORT_SYMBOL(RQF_OST_GET_INFO_LAST_FID); -- cgit v0.10.2 From 6956583961fbd837b381d64e48e67c64b147989a Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Wed, 27 Apr 2016 21:37:13 -0400 Subject: staging: lustre: ldlm: check all errors during ldlm_debugfs_setup() Fix ignoring errors from ldebugfs_add_vars() function. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3885 Reviewed-on: http://review.whamcloud.com/8115 Reviewed-by: John L. Hammond Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c index 475fabb..e99c89c 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c @@ -124,9 +124,15 @@ int ldlm_debugfs_setup(void) } rc = ldebugfs_add_vars(ldlm_debugfs_dir, ldlm_debugfs_list, NULL); + if (rc) { + CERROR("LProcFS failed in ldlm-init\n"); + goto err_svc; + } return 0; +err_svc: + ldebugfs_remove(&ldlm_svc_debugfs_dir); err_ns: ldebugfs_remove(&ldlm_ns_debugfs_dir); err_type: -- cgit v0.10.2 From d8555069e259a7fd8096527cab5b9e3dbf185225 Mon Sep 17 00:00:00 2001 From: Swapnil Pimpale Date: Wed, 27 Apr 2016 21:37:14 -0400 Subject: staging: lustre: obd: cleanup client import if client_obd_setup fails client_obd_setup() allocates an obd_import which should be cleaned up if there is any failure afterwards in callers of client_obd_setup(). This patch fixes the bug in osc_setup(), mgc_setup(), mdc_setup() and lwp_setup(). The fix is to call obd_cleanup_client_import() before calling client_obd_cleanup() in case of an error. Signed-off-by: Swapnil Pimpale Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3810 Reviewed-on: http://review.whamcloud.com/7561 Reviewed-by: John L. Hammond Reviewed-by: Lai Siyao Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c index 32486b2..4791136 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c @@ -438,6 +438,7 @@ int client_obd_cleanup(struct obd_device *obddev) ldlm_namespace_free_post(obddev->obd_namespace); obddev->obd_namespace = NULL; + obd_cleanup_client_import(obddev); LASSERT(!obddev->u.cli.cl_import); ldlm_put_ref(); -- cgit v0.10.2 From 98f2ec61203ff300465d9e44c5657ebf9c870ef6 Mon Sep 17 00:00:00 2001 From: Lai Siyao Date: Wed, 27 Apr 2016 21:37:15 -0400 Subject: staging: lustre: fid: add a connect flag for open by FID Add OBD_CONNECT_OPEN_BY_FID for open by FID, if MDS supports this, for open by FID, it won't retry with name if object with the FID doesn't exist; while if client supports this, client won't pack name in open request if FID is known. Signed-off-by: Lai Siyao Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3544 Reviewed-on: http://review.whamcloud.com/8093 Reviewed-by: John L. Hammond Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h index 26819ee..0ef540a 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h @@ -1257,6 +1257,9 @@ void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb); #define OBD_CONNECT_PINGLESS 0x4000000000000ULL/* pings not required */ #define OBD_CONNECT_FLOCK_DEAD 0x8000000000000ULL/* flock deadlock detection */ #define OBD_CONNECT_DISP_STRIPE 0x10000000000000ULL/*create stripe disposition*/ +#define OBD_CONNECT_OPEN_BY_FID 0x20000000000000ULL /* open by fid won't pack + * name in request + */ /* XXX README XXX: * Please DO NOT add flag values here before first ensuring that this same diff --git a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c index 87555e4..308b6b96 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c +++ b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c @@ -1069,6 +1069,8 @@ void lustre_assert_wire_constants(void) OBD_CONNECT_PINGLESS); LASSERTF(OBD_CONNECT_FLOCK_DEAD == 0x8000000000000ULL, "found 0x%.16llxULL\n", OBD_CONNECT_FLOCK_DEAD); + LASSERTF(OBD_CONNECT_OPEN_BY_FID == 0x20000000000000ULL, + "found 0x%.16llxULL\n", OBD_CONNECT_OPEN_BY_FID); LASSERTF(OBD_CKSUM_CRC32 == 0x00000001UL, "found 0x%.8xUL\n", (unsigned)OBD_CKSUM_CRC32); LASSERTF(OBD_CKSUM_ADLER == 0x00000002UL, "found 0x%.8xUL\n", -- cgit v0.10.2 From 9ebd48965864093b2616cab2df2ea9a73f3aab53 Mon Sep 17 00:00:00 2001 From: Andriy Skulysh Date: Wed, 27 Apr 2016 21:37:16 -0400 Subject: staging: lustre: libcfs: Fix NUMA emulated mode Kernel commit c1c3443c9c5e9be92641029ed229a41563e44506 assigns all allowed cpus to emulated node. End cpt initialization loop when all CPUs are assigned. Signed-off-by: Andriy Skulysh Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3992 Reviewed-on: http://review.whamcloud.com/7724 Reviewed-by: Liang Zhen Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c index 389fb9e..b52518c5 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c @@ -755,8 +755,13 @@ cfs_cpt_table_create(int ncpt) struct cfs_cpu_partition *part; int n; - if (cpt >= ncpt) - goto failed; + /* + * Each emulated NUMA node has all allowed CPUs in + * the mask. + * End loop when all partitions have assigned CPUs. + */ + if (cpt == ncpt) + break; part = &cptab->ctb_parts[cpt]; -- cgit v0.10.2 From 5787be94725c2229ca9188ce189f872c01c9841f Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Wed, 27 Apr 2016 21:37:17 -0400 Subject: staging: lustre: llite: debugging for ll_file_open LASSERT Add debugging for LASSERTF(it_disposition(it, DISP_ENQ_OPEN_REF) in ll_file_open(), since this is a rarely hit failure under racer, and it would be useful to get more information if this is hit again. Print the full intent disposition, as well as the status, in case Oleg's earlier comment about bailing out on any error is actually the case here. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-1993 Reviewed-on: http://review.whamcloud.com/6250 Reviewed-by: Bob Glossman Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index a8de10e..f47f2ac 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -679,7 +679,9 @@ restart: if (rc) goto out_och_free; - LASSERT(it_disposition(it, DISP_ENQ_OPEN_REF)); + LASSERTF(it_disposition(it, DISP_ENQ_OPEN_REF), + "inode %p: disposition %x, status %d\n", inode, + it_disposition(it, ~0), it->d.lustre.it_status); rc = ll_local_open(file, it, fd, *och_p); if (rc) -- cgit v0.10.2 From fe956e728ade07f10a8a6594b787cab087a00be6 Mon Sep 17 00:00:00 2001 From: Swapnil Pimpale Date: Wed, 27 Apr 2016 21:37:18 -0400 Subject: staging: lustre: llite: check ret of ll_prep_md_op_data in ll_dir_filler ll_dir_filler() now checks the returned pointer from ll_prep_md_op_data() using IS_ERR() Signed-off-by: Swapnil Pimpale Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4082 Reviewed-on: http://review.whamcloud.com/8073 Reviewed-by: Dmitry Eremin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 9463da2..53b03741 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -163,6 +163,11 @@ static int ll_dir_filler(void *_hash, struct page *page0) LASSERT(max_pages > 0 && max_pages <= MD_MAX_BRW_PAGES); + op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, + LUSTRE_OPC_ANY, NULL); + if (IS_ERR(op_data)) + return PTR_ERR(op_data); + page_pool = kcalloc(max_pages, sizeof(page), GFP_NOFS); if (page_pool) { page_pool[0] = page0; @@ -177,8 +182,6 @@ static int ll_dir_filler(void *_hash, struct page *page0) page_pool[npages] = page; } - op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, - LUSTRE_OPC_ANY, NULL); op_data->op_npages = npages; op_data->op_offset = hash; rc = md_readpage(exp, op_data, page_pool, &request); -- cgit v0.10.2 From 8fb2990eb7e57a886791af6d99720ca38f535496 Mon Sep 17 00:00:00 2001 From: Lai Siyao Date: Wed, 27 Apr 2016 21:37:19 -0400 Subject: staging: lustre: llog: we don't need vfsmount The patch for LU-3286 removed vfsmount instances used on the server side. Since this is server side only we can remove it from the upstream client. Signed-off-by: Lai Siyao Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3286 Reviewed-on: http://review.whamcloud.com/8286 Reviewed-by: Alex Zhuravlev Reviewed-by: Mike Pershin Reviewed-by: Jian Yu Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre_disk.h b/drivers/staging/lustre/lustre/include/lustre_disk.h index 95fd360..b36821f 100644 --- a/drivers/staging/lustre/lustre/include/lustre_disk.h +++ b/drivers/staging/lustre/lustre/include/lustre_disk.h @@ -130,7 +130,6 @@ struct lustre_sb_info { struct lustre_mount_data *lsi_lmd; /* mount command info */ struct ll_sb_info *lsi_llsbi; /* add'l client sbi info */ struct dt_device *lsi_dt_dev; /* dt device to access disk fs*/ - struct vfsmount *lsi_srv_mnt; /* the one server mount */ atomic_t lsi_mounts; /* references to the srv_mnt */ char lsi_svname[MTI_NAME_MAXLEN]; char lsi_osd_obdname[64]; @@ -158,7 +157,6 @@ struct lustre_sb_info { struct lustre_mount_info { char *lmi_name; struct super_block *lmi_sb; - struct vfsmount *lmi_mnt; struct list_head lmi_list_chain; }; -- cgit v0.10.2 From 70187506215e40d16a89c9f91f4d36f0f487b3e8 Mon Sep 17 00:00:00 2001 From: Mikhail Pershin Date: Wed, 27 Apr 2016 21:37:20 -0400 Subject: staging: lustre: ptlrpc: initialize request session early Initialize request session early to make it available in high-priority handlers Signed-off-by: Mikhail Pershin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3467 Reviewed-on: http://review.whamcloud.com/7350 Reviewed-by: Alex Zhuravlev Reviewed-by: Fan Yong Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c index fc2632f..17c7b97 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/service.c +++ b/drivers/staging/lustre/lustre/ptlrpc/service.c @@ -838,6 +838,11 @@ static void ptlrpc_server_finish_request(struct ptlrpc_service_part *svcpt, { ptlrpc_server_hpreq_fini(req); + if (req->rq_session.lc_thread) { + lu_context_exit(&req->rq_session); + lu_context_fini(&req->rq_session); + } + ptlrpc_server_drop_request(req); } @@ -1579,6 +1584,21 @@ ptlrpc_server_handle_req_in(struct ptlrpc_service_part *svcpt, } req->rq_svc_thread = thread; + if (thread) { + /* initialize request session, it is needed for request + * processing by target + */ + rc = lu_context_init(&req->rq_session, + LCT_SERVER_SESSION | LCT_NOREF); + if (rc) { + CERROR("%s: failure to initialize session: rc = %d\n", + thread->t_name, rc); + goto err_req; + } + req->rq_session.lc_thread = thread; + lu_context_enter(&req->rq_session); + req->rq_svc_thread->t_env->le_ses = &req->rq_session; + } ptlrpc_at_add_timed(req); @@ -1612,7 +1632,6 @@ ptlrpc_server_handle_request(struct ptlrpc_service_part *svcpt, struct timespec64 arrived; unsigned long timediff_usecs; unsigned long arrived_usecs; - int rc; int fail_opc = 0; request = ptlrpc_server_request_get(svcpt, false); @@ -1649,22 +1668,6 @@ ptlrpc_server_handle_request(struct ptlrpc_service_part *svcpt, at_get(&svcpt->scp_at_estimate)); } - rc = lu_context_init(&request->rq_session, LCT_SERVER_SESSION | - LCT_NOREF); - if (rc) { - CERROR("Failure to initialize session: %d\n", rc); - goto out_req; - } - request->rq_session.lc_thread = thread; - request->rq_session.lc_cookie = 0x5; - lu_context_enter(&request->rq_session); - - CDEBUG(D_NET, "got req %llu\n", request->rq_xid); - - request->rq_svc_thread = thread; - if (thread) - request->rq_svc_thread->t_env->le_ses = &request->rq_session; - if (likely(request->rq_export)) { if (unlikely(ptlrpc_check_req(request))) goto put_conn; @@ -1696,14 +1699,21 @@ ptlrpc_server_handle_request(struct ptlrpc_service_part *svcpt, if (lustre_msg_get_opc(request->rq_reqmsg) != OBD_PING) CFS_FAIL_TIMEOUT_MS(OBD_FAIL_PTLRPC_PAUSE_REQ, cfs_fail_val); - rc = svc->srv_ops.so_req_handler(request); + CDEBUG(D_NET, "got req %llu\n", request->rq_xid); + + /* re-assign request and sesson thread to the current one */ + request->rq_svc_thread = thread; + if (thread) { + LASSERT(request->rq_session.lc_thread); + request->rq_session.lc_thread = thread; + request->rq_session.lc_cookie = 0x55; + thread->t_env->le_ses = &request->rq_session; + } + svc->srv_ops.so_req_handler(request); ptlrpc_rqphase_move(request, RQ_PHASE_COMPLETE); put_conn: - lu_context_exit(&request->rq_session); - lu_context_fini(&request->rq_session); - if (unlikely(ktime_get_real_seconds() > request->rq_deadline)) { DEBUG_REQ(D_WARNING, request, "Request took longer than estimated (%lld:%llds); " @@ -1757,7 +1767,6 @@ put_conn: request->rq_arrival_time.tv_sec); } -out_req: ptlrpc_server_finish_active_request(svcpt, request); return 1; -- cgit v0.10.2 From 1b3f4f90c4fe0205e10d0d703ee599f726cd96b6 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Wed, 27 Apr 2016 21:37:21 -0400 Subject: staging: lustre: llite: fixup return value ll_direct_IO_26 Return the correct values from ll_direct_IO_26. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4069 Reviewed-on: http://review.whamcloud.com/8080 Reviewed-by: John L. Hammond Reviewed-by: James Simmons Reviewed-by: Oleg Drokin Signed-Off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index a740c7a..9341189 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -446,7 +446,7 @@ out: } cl_env_put(env, &refcheck); - return tot_bytes ? : result; + return tot_bytes ? tot_bytes : result; } /** -- cgit v0.10.2 From 83e8d02ce7a72bd2710b94edc005474066588d2a Mon Sep 17 00:00:00 2001 From: Oleg Drokin Date: Thu, 28 Apr 2016 12:07:31 -0400 Subject: staging: lustre: debug: initialize debug_msg_data if needed initialize the libcfs_debug_msg_data only if needed Signed-off-by: Oleg Drokin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-1408 Reviewed-on: http://review.whamcloud.com/8338 Reviewed-by: Jinshan Xiong Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h index 587a236..d4c33dd 100644 --- a/drivers/staging/lustre/lustre/include/cl_object.h +++ b/drivers/staging/lustre/lustre/include/cl_object.h @@ -1041,9 +1041,8 @@ struct cl_page_operations { */ #define CL_PAGE_DEBUG(mask, env, page, format, ...) \ do { \ - LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL); \ - \ if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) { \ + LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL); \ cl_page_print(env, &msgdata, lu_cdebug_printer, page); \ CDEBUG(mask, format, ## __VA_ARGS__); \ } \ @@ -1054,9 +1053,8 @@ do { \ */ #define CL_PAGE_HEADER(mask, env, page, format, ...) \ do { \ - LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL); \ - \ if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) { \ + LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL); \ cl_page_header_print(env, &msgdata, lu_cdebug_printer, page); \ CDEBUG(mask, format, ## __VA_ARGS__); \ } \ diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h index a27e76f..2816512 100644 --- a/drivers/staging/lustre/lustre/include/lu_object.h +++ b/drivers/staging/lustre/lustre/include/lu_object.h @@ -780,9 +780,8 @@ int lu_cdebug_printer(const struct lu_env *env, */ #define LU_OBJECT_DEBUG(mask, env, object, format, ...) \ do { \ - LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL); \ - \ if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) { \ + LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL); \ lu_object_print(env, &msgdata, lu_cdebug_printer, object);\ CDEBUG(mask, format, ## __VA_ARGS__); \ } \ @@ -793,9 +792,8 @@ do { \ */ #define LU_OBJECT_HEADER(mask, env, object, format, ...) \ do { \ - LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL); \ - \ if (cfs_cdebug_show(mask, DEBUG_SUBSYSTEM)) { \ + LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, NULL); \ lu_object_header_print(env, &msgdata, lu_cdebug_printer,\ (object)->lo_header); \ lu_cdebug_printer(env, &msgdata, "\n"); \ -- cgit v0.10.2 From b201c2476503f52d549b35f5557d67702a26c29c Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Thu, 28 Apr 2016 12:07:32 -0400 Subject: staging: lustre: echo: remove echo_env_info() regions from echo_client.c This function declartion is not needed so remove it. Signed-off-by: John L. Hammond Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675 Reviewed-on: http://review.whamcloud.com/5580 Reviewed-by: James Simmons Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c index 6aa6d86..91ef06f 100644 --- a/drivers/staging/lustre/lustre/obdecho/echo_client.c +++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c @@ -163,8 +163,6 @@ static int cl_echo_object_put(struct echo_object *eco); static int cl_echo_object_brw(struct echo_object *eco, int rw, u64 offset, struct page **pages, int npages, int async); -static struct echo_thread_info *echo_env_info(const struct lu_env *env); - struct echo_thread_info { struct echo_object_conf eti_conf; struct lustre_md eti_md; -- cgit v0.10.2 From 8bd3efb755baabd1d7e78f1ed2eab1317959c022 Mon Sep 17 00:00:00 2001 From: Alexander Boyko Date: Thu, 28 Apr 2016 12:07:33 -0400 Subject: staging: lustre: brw: added OBDO short io flag To prevent collisions with any future flags needed in features written against this branch. Signed-off-by: Alexander Boyko Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-1757 Xyratex-bug-id: MRP-1460 Reviewed-on: http://review.whamcloud.com/8182 Reviewed-by: Andreas Dilger Reviewed-by: Vitaly Fertman Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h index 0ef540a..9185ed2 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h @@ -1433,6 +1433,7 @@ enum obdo_flags { OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */ OBD_FL_NOSPC_BLK = 0x00100000, /* no more block space on OST */ OBD_FL_FLUSH = 0x00200000, /* flush pages on the OST */ + OBD_FL_SHORT_IO = 0x00400000, /* short io request */ /* Note that while these checksum values are currently separate bits, * in 2.x we can actually allow all values from 1-31 if we wanted. -- cgit v0.10.2 From b78c2b9b3e4af47ca96cd848f21b989ee0e86ea5 Mon Sep 17 00:00:00 2001 From: wang di Date: Thu, 28 Apr 2016 12:07:34 -0400 Subject: staging: lustre: fld: add local fldb to each target Add local FLDB to each MDT, so OSD/OUT can check whether FID is remote by looking up local FLDB, i.e. no need send RPC to MDT0. This is just the client part of the work. Signed-off-by: wang di Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4076 Reviewed-on: http://review.whamcloud.com/7884 Reviewed-by: John L. Hammond Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/fid/fid_request.c b/drivers/staging/lustre/lustre/fid/fid_request.c index 39269c3..32e4d95 100644 --- a/drivers/staging/lustre/lustre/fid/fid_request.c +++ b/drivers/staging/lustre/lustre/fid/fid_request.c @@ -66,6 +66,7 @@ static int seq_client_rpc(struct lu_client_seq *seq, unsigned int debug_mask; int rc; + LASSERT(exp && !IS_ERR(exp)); req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), &RQF_SEQ_QUERY, LUSTRE_MDS_VERSION, SEQ_QUERY); if (!req) @@ -110,10 +111,10 @@ static int seq_client_rpc(struct lu_client_seq *seq, ptlrpc_at_set_req_timeout(req); - if (seq->lcs_type == LUSTRE_SEQ_METADATA) + if (opc != SEQ_ALLOC_SUPER && seq->lcs_type == LUSTRE_SEQ_METADATA) mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL); rc = ptlrpc_queue_wait(req); - if (seq->lcs_type == LUSTRE_SEQ_METADATA) + if (opc != SEQ_ALLOC_SUPER && seq->lcs_type == LUSTRE_SEQ_METADATA) mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL); if (rc) goto out_req; diff --git a/drivers/staging/lustre/lustre/fld/fld_internal.h b/drivers/staging/lustre/lustre/fld/fld_internal.h index e8a3caf..75d6a48 100644 --- a/drivers/staging/lustre/lustre/fld/fld_internal.h +++ b/drivers/staging/lustre/lustre/fld/fld_internal.h @@ -101,12 +101,6 @@ struct fld_cache { unsigned int fci_no_shrink:1; }; -enum fld_op { - FLD_CREATE = 0, - FLD_DELETE = 1, - FLD_LOOKUP = 2 -}; - enum { /* 4M of FLD cache will not hurt client a lot. */ FLD_SERVER_CACHE_SIZE = (4 * 0x100000), @@ -126,7 +120,8 @@ enum { extern struct lu_fld_hash fld_hash[]; int fld_client_rpc(struct obd_export *exp, - struct lu_seq_range *range, __u32 fld_op); + struct lu_seq_range *range, __u32 fld_op, + struct ptlrpc_request **reqp); extern struct lprocfs_vars fld_client_debugfs_list[]; diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c index 64c387e..304c0ec 100644 --- a/drivers/staging/lustre/lustre/fld/fld_request.c +++ b/drivers/staging/lustre/lustre/fld/fld_request.c @@ -391,55 +391,82 @@ void fld_client_fini(struct lu_client_fld *fld) EXPORT_SYMBOL(fld_client_fini); int fld_client_rpc(struct obd_export *exp, - struct lu_seq_range *range, __u32 fld_op) + struct lu_seq_range *range, __u32 fld_op, + struct ptlrpc_request **reqp) { - struct ptlrpc_request *req; + struct ptlrpc_request *req = NULL; struct lu_seq_range *prange; __u32 *op; - int rc; + int rc = 0; struct obd_import *imp; LASSERT(exp); imp = class_exp2cliimp(exp); - req = ptlrpc_request_alloc_pack(imp, &RQF_FLD_QUERY, LUSTRE_MDS_VERSION, - FLD_QUERY); - if (!req) - return -ENOMEM; - - op = req_capsule_client_get(&req->rq_pill, &RMF_FLD_OPC); - *op = fld_op; + switch (fld_op) { + case FLD_QUERY: + req = ptlrpc_request_alloc_pack(imp, &RQF_FLD_QUERY, + LUSTRE_MDS_VERSION, FLD_QUERY); + if (!req) + return -ENOMEM; + + /* + * XXX: only needed when talking to old server(< 2.6), it should + * be removed when < 2.6 server is not supported + */ + op = req_capsule_client_get(&req->rq_pill, &RMF_FLD_OPC); + *op = FLD_LOOKUP; + + if (imp->imp_connect_flags_orig & OBD_CONNECT_MDS_MDS) + req->rq_allow_replay = 1; + break; + case FLD_READ: + req = ptlrpc_request_alloc_pack(imp, &RQF_FLD_READ, + LUSTRE_MDS_VERSION, FLD_READ); + if (!req) + return -ENOMEM; + + req_capsule_set_size(&req->rq_pill, &RMF_GENERIC_DATA, + RCL_SERVER, PAGE_SIZE); + break; + default: + rc = -EINVAL; + break; + } + if (rc) + return rc; prange = req_capsule_client_get(&req->rq_pill, &RMF_FLD_MDFLD); *prange = *range; - ptlrpc_request_set_replen(req); req->rq_request_portal = FLD_REQUEST_PORTAL; req->rq_reply_portal = MDC_REPLY_PORTAL; ptlrpc_at_set_req_timeout(req); - if (fld_op == FLD_LOOKUP && - imp->imp_connect_flags_orig & OBD_CONNECT_MDS_MDS) - req->rq_allow_replay = 1; - - if (fld_op != FLD_LOOKUP) - mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL); fld_enter_request(&exp->exp_obd->u.cli); rc = ptlrpc_queue_wait(req); fld_exit_request(&exp->exp_obd->u.cli); - if (fld_op != FLD_LOOKUP) - mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL); if (rc) goto out_req; - prange = req_capsule_server_get(&req->rq_pill, &RMF_FLD_MDFLD); - if (!prange) { - rc = -EFAULT; - goto out_req; + if (fld_op == FLD_QUERY) { + prange = req_capsule_server_get(&req->rq_pill, &RMF_FLD_MDFLD); + if (!prange) { + rc = -EFAULT; + goto out_req; + } + *range = *prange; } - *range = *prange; + out_req: - ptlrpc_req_finished(req); + if (rc || !reqp) { + ptlrpc_req_finished(req); + req = NULL; + } + + if (reqp) + *reqp = req; + return rc; } @@ -467,7 +494,7 @@ int fld_client_lookup(struct lu_client_fld *fld, u64 seq, u32 *mds, res.lsr_start = seq; fld_range_set_type(&res, flags); - rc = fld_client_rpc(target->ft_exp, &res, FLD_LOOKUP); + rc = fld_client_rpc(target->ft_exp, &res, FLD_QUERY, NULL); if (rc == 0) { *mds = res.lsr_index; diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h index 9185ed2..a70545a 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h @@ -183,6 +183,12 @@ struct lu_seq_range { __u32 lsr_flags; }; +struct lu_seq_range_array { + __u32 lsra_count; + __u32 lsra_padding; + struct lu_seq_range lsra_lsr[0]; +}; + #define LU_SEQ_RANGE_MDT 0x0 #define LU_SEQ_RANGE_OST 0x1 #define LU_SEQ_RANGE_ANY 0x3 @@ -2447,6 +2453,7 @@ struct mdt_rec_reint { void lustre_swab_mdt_rec_reint(struct mdt_rec_reint *rr); +/* lmv structures */ struct lmv_desc { __u32 ld_tgt_count; /* how many MDS's */ __u32 ld_active_tgt_count; /* how many active */ @@ -2471,7 +2478,6 @@ struct lmv_stripe_md { struct lu_fid mea_ids[0]; }; -/* lmv structures */ #define MEA_MAGIC_LAST_CHAR 0xb2221ca1 #define MEA_MAGIC_ALL_CHARS 0xb222a11c #define MEA_MAGIC_HASH_SEGMENT 0xb222a11b @@ -2481,9 +2487,10 @@ struct lmv_stripe_md { #define MAX_HASH_HIGHEST_BIT 0x1000000000000000ULL enum fld_rpc_opc { - FLD_QUERY = 900, + FLD_QUERY = 900, + FLD_READ = 901, FLD_LAST_OPC, - FLD_FIRST_OPC = FLD_QUERY + FLD_FIRST_OPC = FLD_QUERY }; enum seq_rpc_opc { @@ -2497,6 +2504,12 @@ enum seq_op { SEQ_ALLOC_META = 1 }; +enum fld_op { + FLD_CREATE = 0, + FLD_DELETE = 1, + FLD_LOOKUP = 2, +}; + /* * LOV data structures */ diff --git a/drivers/staging/lustre/lustre/include/lustre_req_layout.h b/drivers/staging/lustre/lustre/include/lustre_req_layout.h index b0bc751..0aac439 100644 --- a/drivers/staging/lustre/lustre/include/lustre_req_layout.h +++ b/drivers/staging/lustre/lustre/include/lustre_req_layout.h @@ -137,6 +137,7 @@ extern struct req_format RQF_MGS_CONFIG_READ; /* fid/fld req_format */ extern struct req_format RQF_SEQ_QUERY; extern struct req_format RQF_FLD_QUERY; +extern struct req_format RQF_FLD_READ; /* MDS req_format */ extern struct req_format RQF_MDS_CONNECT; extern struct req_format RQF_MDS_DISCONNECT; diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h index 2aaa343..1358af1 100644 --- a/drivers/staging/lustre/lustre/include/obd_support.h +++ b/drivers/staging/lustre/lustre/include/obd_support.h @@ -428,6 +428,7 @@ extern char obd_jobid_var[]; #define OBD_FAIL_FLD 0x1100 #define OBD_FAIL_FLD_QUERY_NET 0x1101 +#define OBD_FAIL_FLD_READ_NET 0x1102 #define OBD_FAIL_SEC_CTX 0x1200 #define OBD_FAIL_SEC_CTX_INIT_NET 0x1201 diff --git a/drivers/staging/lustre/lustre/ptlrpc/layout.c b/drivers/staging/lustre/lustre/ptlrpc/layout.c index ccc1f3e..c0ecd16 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/layout.c +++ b/drivers/staging/lustre/lustre/ptlrpc/layout.c @@ -160,6 +160,16 @@ static const struct req_msg_field *fld_query_server[] = { &RMF_FLD_MDFLD }; +static const struct req_msg_field *fld_read_client[] = { + &RMF_PTLRPC_BODY, + &RMF_FLD_MDFLD +}; + +static const struct req_msg_field *fld_read_server[] = { + &RMF_PTLRPC_BODY, + &RMF_GENERIC_DATA +}; + static const struct req_msg_field *mds_getattr_name_client[] = { &RMF_PTLRPC_BODY, &RMF_MDT_BODY, @@ -649,6 +659,7 @@ static struct req_format *req_formats[] = { &RQF_MGS_CONFIG_READ, &RQF_SEQ_QUERY, &RQF_FLD_QUERY, + &RQF_FLD_READ, &RQF_MDS_CONNECT, &RQF_MDS_DISCONNECT, &RQF_MDS_GET_INFO, @@ -1168,6 +1179,10 @@ struct req_format RQF_FLD_QUERY = DEFINE_REQ_FMT0("FLD_QUERY", fld_query_client, fld_query_server); EXPORT_SYMBOL(RQF_FLD_QUERY); +struct req_format RQF_FLD_READ = + DEFINE_REQ_FMT0("FLD_READ", fld_read_client, fld_read_server); +EXPORT_SYMBOL(RQF_FLD_READ); + struct req_format RQF_LOG_CANCEL = DEFINE_REQ_FMT0("OBD_LOG_CANCEL", log_cancel_client, empty); EXPORT_SYMBOL(RQF_LOG_CANCEL); diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c index 6dba4ee..64c0f1e 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c @@ -131,6 +131,7 @@ static struct ll_rpc_opcode { { SEC_CTX_INIT_CONT, "sec_ctx_init_cont" }, { SEC_CTX_FINI, "sec_ctx_fini" }, { FLD_QUERY, "fld_query" }, + { FLD_READ, "fld_read" }, }; static struct ll_eopcode { diff --git a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c index 308b6b96..aacc810 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c +++ b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c @@ -276,7 +276,9 @@ void lustre_assert_wire_constants(void) (long long)FLD_QUERY); LASSERTF(FLD_FIRST_OPC == 900, "found %lld\n", (long long)FLD_FIRST_OPC); - LASSERTF(FLD_LAST_OPC == 901, "found %lld\n", + LASSERTF(FLD_READ == 901, "found %lld\n", + (long long)FLD_READ); + LASSERTF(FLD_LAST_OPC == 902, "found %lld\n", (long long)FLD_LAST_OPC); LASSERTF(SEQ_QUERY == 700, "found %lld\n", (long long)SEQ_QUERY); -- cgit v0.10.2 From 6f6c8e7c754a0e17be680f80dfceafe02f0e8932 Mon Sep 17 00:00:00 2001 From: Sebastien Buisson Date: Thu, 28 Apr 2016 12:07:35 -0400 Subject: staging: lustre: ldlm: dont always check max_pages_per_rpc alignement If connection is not established yet, cli->cl_chunkbits is uninitilized so we cannot use it to check max_pages_per_rpc alignment. Signed-off-by: Sebastien Buisson Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4379 Reviewed-on: http://review.whamcloud.com/8558 Reviewed-by: Andreas Dilger Reviewed-by: Bob Glossman Reviewed-by: Emoly Liu Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c index 4791136..b4ffbe2 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c @@ -356,6 +356,12 @@ int client_obd_setup(struct obd_device *obddev, struct lustre_cfg *lcfg) cli->cl_max_pages_per_rpc = min_t(int, PTLRPC_MAX_BRW_PAGES, LNET_MTU >> PAGE_SHIFT); + /* + * set cl_chunkbits default value to PAGE_CACHE_SHIFT, + * it will be updated at OSC connection time. + */ + cli->cl_chunkbits = PAGE_SHIFT; + if (!strcmp(name, LUSTRE_MDC_NAME)) { cli->cl_max_rpcs_in_flight = MDC_MAX_RIF_DEFAULT; } else if (totalram_pages >> (20 - PAGE_SHIFT) <= 128 /* MB */) { -- cgit v0.10.2 From 882b0a1359cbfec69185facdff613322358ba470 Mon Sep 17 00:00:00 2001 From: Emoly Liu Date: Thu, 28 Apr 2016 12:07:36 -0400 Subject: staging: lustre: obd: add case LCFG_PARAM to osd_process_config Some proc parameters were moved from ofd to osd module and only their symlinks were kept in ofd for interoperability/compatibility. To process this kind of config params passed by ofd, this patch is to do the following fixes: - since these parameters are not included by the static lprocfs var list, a pre-check is added for them to avoid "unknown param" error message confuses the uses. If they are matched in this check, they will be passed to the osd directly. - improve the error messages in class_process_proc_param() and class_process_proc_seq_param() a little. Signed-off-by: Emoly Liu Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4221 Reviewed-on: http://review.whamcloud.com/8238 Reviewed-by: Andreas Dilger Reviewed-by: James Simmons Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre_param.h b/drivers/staging/lustre/lustre/include/lustre_param.h index 383fe6f..a42cf90 100644 --- a/drivers/staging/lustre/lustre/include/lustre_param.h +++ b/drivers/staging/lustre/lustre/include/lustre_param.h @@ -89,6 +89,7 @@ int class_parse_nid_quiet(char *buf, lnet_nid_t *nid, char **endh); /* Prefixes for parameters handled by obd's proc methods (XXX_process_config) */ #define PARAM_OST "ost." +#define PARAM_OSD "osd." #define PARAM_OSC "osc." #define PARAM_MDT "mdt." #define PARAM_MDD "mdd." diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c index a3a2abc..cb1d65c 100644 --- a/drivers/staging/lustre/lustre/obdclass/obd_config.c +++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c @@ -1000,7 +1000,13 @@ int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars, for (i = 1; i < lcfg->lcfg_bufcount; i++) { key = lustre_cfg_buf(lcfg, i); /* Strip off prefix */ - class_match_param(key, prefix, &key); + if (class_match_param(key, prefix, &key)) { + /* + * If the prefix doesn't match, return error so we + * can pass it down the stack + */ + return -ENOSYS; + } sval = strchr(key, '='); if (!sval || (*(sval + 1) == 0)) { CERROR("Can't parse param %s (missing '=')\n", key); @@ -1033,18 +1039,14 @@ int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars, j++; } if (!matched) { - /* If the prefix doesn't match, return error so we - * can pass it down the stack - */ - if (strnchr(key, keylen, '.')) - return -ENOSYS; - CERROR("%s: unknown param %s\n", + CERROR("%.*s: %s unknown param %s\n", + (int)strlen(prefix) - 1, prefix, (char *)lustre_cfg_string(lcfg, 0), key); /* rc = -EINVAL; continue parsing other params */ skip++; } else if (rc < 0) { - CERROR("writing proc entry %s err %d\n", - var->name, rc); + CERROR("%s: error writing proc entry '%s': rc = %d\n", + prefix, var->name, rc); rc = 0; } else { CDEBUG(D_CONFIG, "%s.%.*s: Set parameter %.*s=%s\n", -- cgit v0.10.2 From 69daf080b7fea2bc6780238ad55983934e43c441 Mon Sep 17 00:00:00 2001 From: Emoly Liu Date: Thu, 28 Apr 2016 12:07:37 -0400 Subject: staging: lustre: debugfs: improve osc/mdc "imports" connect data Improve /sys/debug/fs/lustre/{osc,mdc}/*/import files to print the struct obd_connect_data data fields as "connect_data:" in addition to the "connect_flags:" field. Signed-off-by: Emoly Liu Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3386 Reviewed-on: http://review.whamcloud.com/6588 Reviewed-by: Andreas Dilger Reviewed-by: James Simmons Reviewed-by: John L. Hammond Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c index b2f309d..5a1eae1 100644 --- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c +++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c @@ -49,7 +49,7 @@ static const char * const obd_connect_names[] = { "read_only", "lov_index", - "unused", + "connect_from_mds", "write_grant", "server_lock", "version", @@ -122,6 +122,56 @@ int obd_connect_flags2str(char *page, int count, __u64 flags, char *sep) } EXPORT_SYMBOL(obd_connect_flags2str); +static void obd_connect_data_seqprint(struct seq_file *m, + struct obd_connect_data *ocd) +{ + int flags; + + LASSERT(ocd); + flags = ocd->ocd_connect_flags; + + seq_printf(m, " connect_data:\n" + " flags: %llx\n" + " instance: %u\n", + ocd->ocd_connect_flags, + ocd->ocd_instance); + if (flags & OBD_CONNECT_VERSION) + seq_printf(m, " target_version: %u.%u.%u.%u\n", + OBD_OCD_VERSION_MAJOR(ocd->ocd_version), + OBD_OCD_VERSION_MINOR(ocd->ocd_version), + OBD_OCD_VERSION_PATCH(ocd->ocd_version), + OBD_OCD_VERSION_FIX(ocd->ocd_version)); + if (flags & OBD_CONNECT_MDS) + seq_printf(m, " mdt_index: %d\n", ocd->ocd_group); + if (flags & OBD_CONNECT_GRANT) + seq_printf(m, " initial_grant: %d\n", ocd->ocd_grant); + if (flags & OBD_CONNECT_INDEX) + seq_printf(m, " target_index: %u\n", ocd->ocd_index); + if (flags & OBD_CONNECT_BRW_SIZE) + seq_printf(m, " max_brw_size: %d\n", ocd->ocd_brw_size); + if (flags & OBD_CONNECT_IBITS) + seq_printf(m, " ibits_known: %llx\n", + ocd->ocd_ibits_known); + if (flags & OBD_CONNECT_GRANT_PARAM) + seq_printf(m, " grant_block_size: %d\n" + " grant_inode_size: %d\n" + " grant_extent_overhead: %d\n", + ocd->ocd_blocksize, + ocd->ocd_inodespace, + ocd->ocd_grant_extent); + if (flags & OBD_CONNECT_TRANSNO) + seq_printf(m, " first_transno: %llx\n", + ocd->ocd_transno); + if (flags & OBD_CONNECT_CKSUM) + seq_printf(m, " cksum_types: %#x\n", + ocd->ocd_cksum_types); + if (flags & OBD_CONNECT_MAX_EASIZE) + seq_printf(m, " max_easize: %d\n", ocd->ocd_max_easize); + if (flags & OBD_CONNECT_MAXBYTES) + seq_printf(m, " max_object_bytes: %llx\n", + ocd->ocd_maxbytes); +} + int lprocfs_read_frac_helper(char *buffer, unsigned long count, long val, int mult) { @@ -624,6 +674,7 @@ int lprocfs_rd_import(struct seq_file *m, void *data) struct obd_device *obd = data; struct obd_import *imp; struct obd_import_conn *conn; + struct obd_connect_data *ocd; int j; int k; int rw = 0; @@ -635,9 +686,9 @@ int lprocfs_rd_import(struct seq_file *m, void *data) return rc; imp = obd->u.cli.cl_import; + ocd = &imp->imp_connect_data; - seq_printf(m, - "import:\n" + seq_printf(m, "import:\n" " name: %s\n" " target: %s\n" " state: %s\n" @@ -649,9 +700,9 @@ int lprocfs_rd_import(struct seq_file *m, void *data) imp->imp_connect_data.ocd_instance); obd_connect_seq_flags2str(m, imp->imp_connect_data.ocd_connect_flags, ", "); - seq_printf(m, - " ]\n" - " import_flags: [ "); + seq_printf(m, " ]\n"); + obd_connect_data_seqprint(m, ocd); + seq_printf(m, " import_flags: [ "); obd_import_flags2str(imp, m); seq_printf(m, -- cgit v0.10.2 From ae33a836df17456aa80eff664a070592e2482ea2 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Thu, 28 Apr 2016 12:07:38 -0400 Subject: staging: lustre: llite: quiet overly verbose info message The client doesn't need to print a message for every client mount that the layout lock feature is enabled. This can be found at runtime via the "import" proc file. I also noticed that deleting OST objects logs into the debug log with D_HA status, which is enabled by default. Move this over to D_INODE so it doesn't fill the OST debug logs. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-1095 Reviewed-on: http://review.whamcloud.com/7918 Reviewed-by: Bob Glossman Reviewed-by: Emoly Liu Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 8d88d4c..64be2c1 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -331,10 +331,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt, else sbi->ll_md_brw_size = PAGE_SIZE; - if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK) { - LCONSOLE_INFO("Layout lock feature supported.\n"); + if (data->ocd_connect_flags & OBD_CONNECT_LAYOUTLOCK) sbi->ll_flags |= LL_SBI_LAYOUT_LOCK; - } if (data->ocd_ibits_known & MDS_INODELOCK_XATTR) { if (!(data->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)) { -- cgit v0.10.2 From 27e1f1396465944d9f78ad4ee26e596c2e260092 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 1 Apr 2016 17:44:13 +0900 Subject: staging: wilc1000: changes logic when happened mq_send fail This patch changes logic when happened mq_send fail. The check as a result value that mq_send fail. But, regardless of the result value then perform a semaphore up. That is an occur that semaphore locking. Add to 'else' routine and move to 'else' position a semaphore up. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 04cbff5..12f1630 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -2731,7 +2731,8 @@ int wilc_remove_wep_key(struct wilc_vif *vif, u8 index) result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg)); if (result) netdev_err(vif->ndev, "Request to remove WEP key\n"); - wait_for_completion(&hif_drv->comp_test_key_block); + else + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -2759,7 +2760,8 @@ int wilc_set_wep_default_keyid(struct wilc_vif *vif, u8 index) result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg)); if (result) netdev_err(vif->ndev, "Default key index\n"); - wait_for_completion(&hif_drv->comp_test_key_block); + else + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -2828,7 +2830,8 @@ int wilc_add_wep_key_bss_ap(struct wilc_vif *vif, const u8 *key, u8 len, if (result) netdev_err(vif->ndev, "AP - WEP Key\n"); - wait_for_completion(&hif_drv->comp_test_key_block); + else + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -2883,8 +2886,8 @@ int wilc_add_ptk(struct wilc_vif *vif, const u8 *ptk, u8 ptk_key_len, if (result) netdev_err(vif->ndev, "PTK Key\n"); - - wait_for_completion(&hif_drv->comp_test_key_block); + else + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -2951,8 +2954,8 @@ int wilc_add_rx_gtk(struct wilc_vif *vif, const u8 *rx_gtk, u8 gtk_key_len, result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg)); if (result) netdev_err(vif->ndev, "RX GTK\n"); - - wait_for_completion(&hif_drv->comp_test_key_block); + else + wait_for_completion(&hif_drv->comp_test_key_block); return result; } @@ -3098,8 +3101,8 @@ int wilc_disconnect(struct wilc_vif *vif, u16 reason_code) result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg)); if (result) netdev_err(vif->ndev, "Failed to send message: disconnect\n"); - - wait_for_completion(&hif_drv->comp_test_disconn_block); + else + wait_for_completion(&hif_drv->comp_test_disconn_block); return result; } @@ -3220,8 +3223,8 @@ s32 wilc_get_inactive_time(struct wilc_vif *vif, const u8 *mac, result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg)); if (result) netdev_err(vif->ndev, "Failed to send get host ch param\n"); - - wait_for_completion(&hif_drv->comp_inactive_time); + else + wait_for_completion(&hif_drv->comp_inactive_time); *pu32InactiveTime = inactive_time; @@ -3502,8 +3505,8 @@ int wilc_deinit(struct wilc_vif *vif) result = wilc_mq_send(&hif_msg_q, &msg, sizeof(struct host_if_msg)); if (result != 0) netdev_err(vif->ndev, "deinit : Error(%d)\n", result); - - wait_for_completion(&hif_thread_comp); + else + wait_for_completion(&hif_thread_comp); wilc_mq_destroy(&hif_msg_q); } @@ -3882,8 +3885,8 @@ int wilc_del_allstation(struct wilc_vif *vif, u8 mac_addr[][ETH_ALEN]) if (result) netdev_err(vif->ndev, "wilc_mq_send fail\n"); - - wait_for_completion(&hif_wait_response); + else + wait_for_completion(&hif_wait_response); return result; } -- cgit v0.10.2 From 01c7cee913e431e88159c70dae330dd40aa72677 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 1 Apr 2016 17:44:14 +0900 Subject: staging: wilc1000: removes duplicate del_timer_sync This patch removes del_timer_sync(&periodic_rssi) which was already performed this action. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 12f1630..936c04a 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3498,7 +3498,6 @@ int wilc_deinit(struct wilc_vif *vif) memset(&msg, 0, sizeof(struct host_if_msg)); if (clients_count == 1) { - del_timer_sync(&periodic_rssi); msg.id = HOST_IF_MSG_EXIT; msg.vif = vif; -- cgit v0.10.2 From 11a54b3f9932efb7d2c07350834bb37ea0ba7cf9 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 1 Apr 2016 17:44:15 +0900 Subject: staging: wilc1000: txq_thread_started: replaces a semaphore with a completion This patch replaces a semaphore(txq_thread_started) with a completion. Struct semaphore txq_thread_started is used to signal completion of txq thread. It is better to use completion than semaphore for this case. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index a858552..2ed2bf3 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -22,6 +22,7 @@ #include #include +#include static int dev_state_ev_handler(struct notifier_block *this, unsigned long event, void *ptr); @@ -313,12 +314,12 @@ static int linux_wlan_txq_task(void *vp) vif = netdev_priv(dev); wl = vif->wilc; - up(&wl->txq_thread_started); + complete(&wl->txq_thread_started); while (1) { down(&wl->txq_event); if (wl->close) { - up(&wl->txq_thread_started); + complete(&wl->txq_thread_started); while (!kthread_should_stop()) schedule(); @@ -693,8 +694,7 @@ static int wlan_init_locks(struct net_device *dev) sema_init(&wl->cfg_event, 0); sema_init(&wl->sync_event, 0); - - sema_init(&wl->txq_thread_started, 0); + init_completion(&wl->txq_thread_started); return 0; } @@ -731,7 +731,7 @@ static int wlan_initialize_threads(struct net_device *dev) wilc->close = 0; return -ENOBUFS; } - down(&wilc->txq_thread_started); + wait_for_completion(&wilc->txq_thread_started); return 0; } diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h index 3d0ca8e..3a561df6 100644 --- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h +++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h @@ -179,8 +179,7 @@ struct wilc { struct semaphore cfg_event; struct semaphore sync_event; struct semaphore txq_event; - - struct semaphore txq_thread_started; + struct completion txq_thread_started; struct task_struct *txq_thread; -- cgit v0.10.2 From a2c28de5c09b29854abe5fd7448695d4da0bdb33 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 1 Apr 2016 17:44:16 +0900 Subject: staging: wilc1000: removes unnecessary test code This patch removes unnecessary test code that mac address hardcoding setting. This test code is support to old firmware. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 2ed2bf3..47c0132 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -424,7 +424,6 @@ static int linux_wlan_init_test_config(struct net_device *dev, struct wilc_vif *vif) { unsigned char c_val[64]; - unsigned char mac_add[] = {0x00, 0x80, 0xC2, 0x5E, 0xa2, 0xff}; struct wilc *wilc = vif->wilc; struct wilc_priv *priv; struct host_if_drv *hif_drv; @@ -433,9 +432,6 @@ static int linux_wlan_init_test_config(struct net_device *dev, priv = wiphy_priv(dev->ieee80211_ptr->wiphy); hif_drv = (struct host_if_drv *)priv->hif_drv; netdev_dbg(dev, "Host = %p\n", hif_drv); - wilc_get_mac_address(vif, mac_add); - - netdev_dbg(dev, "MAC address is : %pM\n", mac_add); wilc_get_chipid(wilc, false); *(int *)c_val = 1; @@ -597,11 +593,6 @@ static int linux_wlan_init_test_config(struct net_device *dev, 0)) goto _fail_; - memcpy(c_val, mac_add, 6); - - if (!wilc_wlan_cfg_set(vif, 0, WID_MAC_ADDR, c_val, 6, 0, 0)) - goto _fail_; - c_val[0] = DETECT_PROTECT_REPORT; if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OBSS_NONHT_DETECTION, c_val, 1, 0, 0)) -- cgit v0.10.2 From 3f626cf4a8445015296bb2cc2c98aa9ed619d7cc Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 1 Apr 2016 17:44:17 +0900 Subject: staging: wilc1000: add set to null after release firmware This patch add set to null after release firmware. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 47c0132..48bbfa2 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -1234,8 +1234,10 @@ void wilc_netdev_cleanup(struct wilc *wilc) vif[i] = netdev_priv(wilc->vif[i]->ndev); } - if (wilc && wilc->firmware) + if (wilc && wilc->firmware) { release_firmware(wilc->firmware); + wilc->firmware = NULL; + } if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev)) { wilc_lock_timeout(wilc, &close_exit_sync, 5 * 1000); -- cgit v0.10.2 From 8006109ba0f9b85407ce41c86e7a9a059d08b90c Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 1 Apr 2016 17:44:18 +0900 Subject: staging: wilc1000: adds a cfg80211_disconnected() function This patch is adds a cfg80211_disconnected() when connection is lost already. We was find this situation while test the 'rmmod sdio'. SDIO remove function are include both remove mac_close and unregister net_device. That is received one more a disconnect cmd from cfg80211. Driver was already performed disconnect. If wilc->close value was set to true, adds a call to cfg80211_disconnected(). Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 358632b..1ac835b 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -819,11 +819,22 @@ static int disconnect(struct wiphy *wiphy, struct net_device *dev, u16 reason_co struct wilc_priv *priv; struct host_if_drv *pstrWFIDrv; struct wilc_vif *vif; + struct wilc *wilc; u8 NullBssid[ETH_ALEN] = {0}; wilc_connecting = 0; priv = wiphy_priv(wiphy); vif = netdev_priv(priv->dev); + wilc = vif->wilc; + + if (!wilc) + return -EIO; + + if (wilc->close) { + /* already disconnected done */ + cfg80211_disconnected(dev, 0, NULL, 0, true, GFP_KERNEL); + return 0; + } pstrWFIDrv = (struct host_if_drv *)priv->hif_drv; if (!pstrWFIDrv->p2p_connect) -- cgit v0.10.2 From b0f1836fadc89dd5629021cfc4ab72ef9f2bfcb3 Mon Sep 17 00:00:00 2001 From: Leo Kim Date: Fri, 1 Apr 2016 17:44:19 +0900 Subject: staging: wilc1000: adds a check routine when performed del_key() This patch is adds a check routine when performed del_key(). We was find this situation while test the 'rmmod sdio'. That is received inform a .del_key cmd from cfg80211. If is not exist wep keys, must be ignore a wilc_remove_wep_key() function. Thus, adds a check routine that key length of wep. Signed-off-by: Leo Kim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 1ac835b..85031f7 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -1122,9 +1122,12 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev, } if (key_index >= 0 && key_index <= 3) { - memset(priv->WILC_WFI_wep_key[key_index], 0, priv->WILC_WFI_wep_key_len[key_index]); - priv->WILC_WFI_wep_key_len[key_index] = 0; - wilc_remove_wep_key(vif, key_index); + if (priv->WILC_WFI_wep_key_len[key_index]) { + memset(priv->WILC_WFI_wep_key[key_index], 0, + priv->WILC_WFI_wep_key_len[key_index]); + priv->WILC_WFI_wep_key_len[key_index] = 0; + wilc_remove_wep_key(vif, key_index); + } } else { wilc_remove_key(priv->hif_drv, mac_addr); } -- cgit v0.10.2 From 960efe0f89f90c1742728aeaca2de1ca7e0ce42b Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 4 Apr 2016 20:04:43 +0900 Subject: staging: wilc1000: rename goto label in handle_cfg_param This patch changes goto label from ERRORHANDLER to unlock. unlock is a more meaningful name than ERRORHANDLER. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 936c04a..41a1426 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -456,7 +456,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "check value 6 over\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -472,7 +472,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Impossible value\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -487,7 +487,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Range(1 ~ 65535) over\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -501,7 +501,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Invalid power mode\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -516,7 +516,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Range(1~256) over\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -531,7 +531,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Range(1~256) over\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -546,7 +546,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Threshold Range fail\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -561,7 +561,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Threshold Range fail\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -575,7 +575,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Preamle Range(0~2) over\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -589,7 +589,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Short slot(2) over\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -603,7 +603,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "TXOP prot disable\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -618,7 +618,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Beacon interval(1~65535)fail\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -633,7 +633,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "DTIM range(1~255) fail\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -647,7 +647,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Site survey disable\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -662,7 +662,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Site scan time(1~65535) over\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -677,7 +677,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Active time(1~65535) over\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -692,7 +692,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "Passive time(1~65535) over\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -714,7 +714,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, } else { netdev_err(vif->ndev, "out of TX rate\n"); result = -EINVAL; - goto ERRORHANDLER; + goto unlock; } i++; } @@ -725,7 +725,7 @@ static s32 handle_cfg_param(struct wilc_vif *vif, if (result) netdev_err(vif->ndev, "Error in setting CFG params\n"); -ERRORHANDLER: +unlock: mutex_unlock(&hif_drv->cfg_values_lock); return result; } -- cgit v0.10.2 From 4aa3387bc2d56459fdb7da9e47f39d56b46db3a3 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 4 Apr 2016 20:04:44 +0900 Subject: staging: wilc1000: move Handle_ScanDone function declaration Handle_ScanDone function declaration is moved to front of host_interface.c file. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 41a1426..1e3742d 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -263,6 +263,7 @@ static struct wilc_vif *join_req_vif; static void *host_int_ParseJoinBssParam(struct network_info *ptstrNetworkInfo); static int host_int_get_ipaddress(struct wilc_vif *vif, u8 *ip_addr, u8 idx); +static s32 Handle_ScanDone(struct wilc_vif *vif, enum scan_event enuEvent); /* The u8IfIdx starts from 0 to NUM_CONCURRENT_IFC -1, but 0 index used as * special purpose in wilc device, so we add 1 to the index to starts from 1. @@ -730,9 +731,6 @@ unlock: return result; } -static s32 Handle_ScanDone(struct wilc_vif *vif, - enum scan_event enuEvent); - static s32 Handle_Scan(struct wilc_vif *vif, struct scan_attr *pstrHostIFscanAttr) { -- cgit v0.10.2 From 03f00ac788cfbedef98e03b2c7af59125e4d5f0d Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 4 Apr 2016 20:04:45 +0900 Subject: staging: wilc1000: remove block scope braces and fix indentation This patch removes unnecessary block scope braces and fix indentation of the codes. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 1e3742d..b4f16fe 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -783,13 +783,11 @@ static s32 Handle_Scan(struct wilc_vif *vif, u32WidsCount++; } - { - strWIDList[u32WidsCount].id = WID_INFO_ELEMENT_PROBE; - strWIDList[u32WidsCount].type = WID_BIN_DATA; - strWIDList[u32WidsCount].val = pstrHostIFscanAttr->ies; - strWIDList[u32WidsCount].size = pstrHostIFscanAttr->ies_len; - u32WidsCount++; - } + strWIDList[u32WidsCount].id = WID_INFO_ELEMENT_PROBE; + strWIDList[u32WidsCount].type = WID_BIN_DATA; + strWIDList[u32WidsCount].val = pstrHostIFscanAttr->ies; + strWIDList[u32WidsCount].size = pstrHostIFscanAttr->ies_len; + u32WidsCount++; strWIDList[u32WidsCount].id = WID_SCAN_TYPE; strWIDList[u32WidsCount].type = WID_CHAR; -- cgit v0.10.2 From ba7eac31a129de13a1d6a7fb45da4fe7c090ce7c Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 4 Apr 2016 20:04:46 +0900 Subject: staging: wilc1000: rename Handle_Scan This patch renames Handle_Scan to handle_scan to avoid camelcase. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index b4f16fe..ff10095 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -731,7 +731,7 @@ unlock: return result; } -static s32 Handle_Scan(struct wilc_vif *vif, +static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *pstrHostIFscanAttr) { s32 result = 0; @@ -2515,7 +2515,7 @@ static int hostIFthread(void *pvArg) switch (msg.id) { case HOST_IF_MSG_SCAN: - Handle_Scan(msg.vif, &msg.body.scan_info); + handle_scan(msg.vif, &msg.body.scan_info); break; case HOST_IF_MSG_CONNECT: -- cgit v0.10.2 From 34b107eded72b671457a561861c71a82bf12d1c0 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 4 Apr 2016 20:04:47 +0900 Subject: staging: wilc1000: rename pstrHostIFscanAttr in handle_scan This patch renames pstrHostIFscanAttr to scan_info to avoid camelcase. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index ff10095..2c4edd0 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -731,8 +731,7 @@ unlock: return result; } -static s32 handle_scan(struct wilc_vif *vif, - struct scan_attr *pstrHostIFscanAttr) +static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) { s32 result = 0; struct wid strWIDList[5]; @@ -743,8 +742,8 @@ static s32 handle_scan(struct wilc_vif *vif, u8 *pu8HdnNtwrksWidVal = NULL; struct host_if_drv *hif_drv = vif->hif_drv; - hif_drv->usr_scan_req.scan_result = pstrHostIFscanAttr->result; - hif_drv->usr_scan_req.arg = pstrHostIFscanAttr->arg; + hif_drv->usr_scan_req.scan_result = scan_info->result; + hif_drv->usr_scan_req.arg = scan_info->arg; if ((hif_drv->hif_state >= HOST_IF_SCANNING) && (hif_drv->hif_state < HOST_IF_CONNECTED)) { @@ -764,19 +763,19 @@ static s32 handle_scan(struct wilc_vif *vif, strWIDList[u32WidsCount].id = (u16)WID_SSID_PROBE_REQ; strWIDList[u32WidsCount].type = WID_STR; - for (i = 0; i < pstrHostIFscanAttr->hidden_network.n_ssids; i++) - valuesize += ((pstrHostIFscanAttr->hidden_network.net_info[i].ssid_len) + 1); + for (i = 0; i < scan_info->hidden_network.n_ssids; i++) + valuesize += ((scan_info->hidden_network.net_info[i].ssid_len) + 1); pu8HdnNtwrksWidVal = kmalloc(valuesize + 1, GFP_KERNEL); strWIDList[u32WidsCount].val = pu8HdnNtwrksWidVal; if (strWIDList[u32WidsCount].val) { pu8Buffer = strWIDList[u32WidsCount].val; - *pu8Buffer++ = pstrHostIFscanAttr->hidden_network.n_ssids; + *pu8Buffer++ = scan_info->hidden_network.n_ssids; - for (i = 0; i < pstrHostIFscanAttr->hidden_network.n_ssids; i++) { - *pu8Buffer++ = pstrHostIFscanAttr->hidden_network.net_info[i].ssid_len; - memcpy(pu8Buffer, pstrHostIFscanAttr->hidden_network.net_info[i].ssid, pstrHostIFscanAttr->hidden_network.net_info[i].ssid_len); - pu8Buffer += pstrHostIFscanAttr->hidden_network.net_info[i].ssid_len; + for (i = 0; i < scan_info->hidden_network.n_ssids; i++) { + *pu8Buffer++ = scan_info->hidden_network.net_info[i].ssid_len; + memcpy(pu8Buffer, scan_info->hidden_network.net_info[i].ssid, scan_info->hidden_network.net_info[i].ssid_len); + pu8Buffer += scan_info->hidden_network.net_info[i].ssid_len; } strWIDList[u32WidsCount].size = (s32)(valuesize + 1); @@ -785,37 +784,37 @@ static s32 handle_scan(struct wilc_vif *vif, strWIDList[u32WidsCount].id = WID_INFO_ELEMENT_PROBE; strWIDList[u32WidsCount].type = WID_BIN_DATA; - strWIDList[u32WidsCount].val = pstrHostIFscanAttr->ies; - strWIDList[u32WidsCount].size = pstrHostIFscanAttr->ies_len; + strWIDList[u32WidsCount].val = scan_info->ies; + strWIDList[u32WidsCount].size = scan_info->ies_len; u32WidsCount++; strWIDList[u32WidsCount].id = WID_SCAN_TYPE; strWIDList[u32WidsCount].type = WID_CHAR; strWIDList[u32WidsCount].size = sizeof(char); - strWIDList[u32WidsCount].val = (s8 *)&pstrHostIFscanAttr->type; + strWIDList[u32WidsCount].val = (s8 *)&scan_info->type; u32WidsCount++; strWIDList[u32WidsCount].id = WID_SCAN_CHANNEL_LIST; strWIDList[u32WidsCount].type = WID_BIN_DATA; - if (pstrHostIFscanAttr->ch_freq_list && - pstrHostIFscanAttr->ch_list_len > 0) { + if (scan_info->ch_freq_list && + scan_info->ch_list_len > 0) { int i; - for (i = 0; i < pstrHostIFscanAttr->ch_list_len; i++) { - if (pstrHostIFscanAttr->ch_freq_list[i] > 0) - pstrHostIFscanAttr->ch_freq_list[i] = pstrHostIFscanAttr->ch_freq_list[i] - 1; + for (i = 0; i < scan_info->ch_list_len; i++) { + if (scan_info->ch_freq_list[i] > 0) + scan_info->ch_freq_list[i] = scan_info->ch_freq_list[i] - 1; } } - strWIDList[u32WidsCount].val = pstrHostIFscanAttr->ch_freq_list; - strWIDList[u32WidsCount].size = pstrHostIFscanAttr->ch_list_len; + strWIDList[u32WidsCount].val = scan_info->ch_freq_list; + strWIDList[u32WidsCount].size = scan_info->ch_list_len; u32WidsCount++; strWIDList[u32WidsCount].id = WID_START_SCAN_REQ; strWIDList[u32WidsCount].type = WID_CHAR; strWIDList[u32WidsCount].size = sizeof(char); - strWIDList[u32WidsCount].val = (s8 *)&pstrHostIFscanAttr->src; + strWIDList[u32WidsCount].val = (s8 *)&scan_info->src; u32WidsCount++; if (hif_drv->hif_state == HOST_IF_CONNECTED) @@ -836,13 +835,13 @@ ERRORHANDLER: Handle_ScanDone(vif, SCAN_EVENT_ABORTED); } - kfree(pstrHostIFscanAttr->ch_freq_list); - pstrHostIFscanAttr->ch_freq_list = NULL; + kfree(scan_info->ch_freq_list); + scan_info->ch_freq_list = NULL; - kfree(pstrHostIFscanAttr->ies); - pstrHostIFscanAttr->ies = NULL; - kfree(pstrHostIFscanAttr->hidden_network.net_info); - pstrHostIFscanAttr->hidden_network.net_info = NULL; + kfree(scan_info->ies); + scan_info->ies = NULL; + kfree(scan_info->hidden_network.net_info); + scan_info->hidden_network.net_info = NULL; kfree(pu8HdnNtwrksWidVal); -- cgit v0.10.2 From bbff83dbb717dca6248615d82cc00fb3466fb805 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 4 Apr 2016 20:04:48 +0900 Subject: staging: wilc1000: rename strWIDList in handle_scan This patch renames strWIDList to wid_list to avoid camelcase. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 2c4edd0..ebf440c 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -734,7 +734,7 @@ unlock: static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) { s32 result = 0; - struct wid strWIDList[5]; + struct wid wid_list[5]; u32 u32WidsCount = 0; u32 i; u8 *pu8Buffer; @@ -760,15 +760,15 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) hif_drv->usr_scan_req.rcvd_ch_cnt = 0; - strWIDList[u32WidsCount].id = (u16)WID_SSID_PROBE_REQ; - strWIDList[u32WidsCount].type = WID_STR; + wid_list[u32WidsCount].id = (u16)WID_SSID_PROBE_REQ; + wid_list[u32WidsCount].type = WID_STR; for (i = 0; i < scan_info->hidden_network.n_ssids; i++) valuesize += ((scan_info->hidden_network.net_info[i].ssid_len) + 1); pu8HdnNtwrksWidVal = kmalloc(valuesize + 1, GFP_KERNEL); - strWIDList[u32WidsCount].val = pu8HdnNtwrksWidVal; - if (strWIDList[u32WidsCount].val) { - pu8Buffer = strWIDList[u32WidsCount].val; + wid_list[u32WidsCount].val = pu8HdnNtwrksWidVal; + if (wid_list[u32WidsCount].val) { + pu8Buffer = wid_list[u32WidsCount].val; *pu8Buffer++ = scan_info->hidden_network.n_ssids; @@ -778,24 +778,24 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) pu8Buffer += scan_info->hidden_network.net_info[i].ssid_len; } - strWIDList[u32WidsCount].size = (s32)(valuesize + 1); + wid_list[u32WidsCount].size = (s32)(valuesize + 1); u32WidsCount++; } - strWIDList[u32WidsCount].id = WID_INFO_ELEMENT_PROBE; - strWIDList[u32WidsCount].type = WID_BIN_DATA; - strWIDList[u32WidsCount].val = scan_info->ies; - strWIDList[u32WidsCount].size = scan_info->ies_len; + wid_list[u32WidsCount].id = WID_INFO_ELEMENT_PROBE; + wid_list[u32WidsCount].type = WID_BIN_DATA; + wid_list[u32WidsCount].val = scan_info->ies; + wid_list[u32WidsCount].size = scan_info->ies_len; u32WidsCount++; - strWIDList[u32WidsCount].id = WID_SCAN_TYPE; - strWIDList[u32WidsCount].type = WID_CHAR; - strWIDList[u32WidsCount].size = sizeof(char); - strWIDList[u32WidsCount].val = (s8 *)&scan_info->type; + wid_list[u32WidsCount].id = WID_SCAN_TYPE; + wid_list[u32WidsCount].type = WID_CHAR; + wid_list[u32WidsCount].size = sizeof(char); + wid_list[u32WidsCount].val = (s8 *)&scan_info->type; u32WidsCount++; - strWIDList[u32WidsCount].id = WID_SCAN_CHANNEL_LIST; - strWIDList[u32WidsCount].type = WID_BIN_DATA; + wid_list[u32WidsCount].id = WID_SCAN_CHANNEL_LIST; + wid_list[u32WidsCount].type = WID_BIN_DATA; if (scan_info->ch_freq_list && scan_info->ch_list_len > 0) { @@ -807,14 +807,14 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) } } - strWIDList[u32WidsCount].val = scan_info->ch_freq_list; - strWIDList[u32WidsCount].size = scan_info->ch_list_len; + wid_list[u32WidsCount].val = scan_info->ch_freq_list; + wid_list[u32WidsCount].size = scan_info->ch_list_len; u32WidsCount++; - strWIDList[u32WidsCount].id = WID_START_SCAN_REQ; - strWIDList[u32WidsCount].type = WID_CHAR; - strWIDList[u32WidsCount].size = sizeof(char); - strWIDList[u32WidsCount].val = (s8 *)&scan_info->src; + wid_list[u32WidsCount].id = WID_START_SCAN_REQ; + wid_list[u32WidsCount].type = WID_CHAR; + wid_list[u32WidsCount].size = sizeof(char); + wid_list[u32WidsCount].val = (s8 *)&scan_info->src; u32WidsCount++; if (hif_drv->hif_state == HOST_IF_CONNECTED) @@ -822,7 +822,7 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) else if (hif_drv->hif_state == HOST_IF_IDLE) scan_while_connected = false; - result = wilc_send_config_pkt(vif, SET_CFG, strWIDList, + result = wilc_send_config_pkt(vif, SET_CFG, wid_list, u32WidsCount, wilc_get_vif_idx(vif)); -- cgit v0.10.2 From 87b16cbf17bdd5aefdfba14893311cd16f4f5689 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 4 Apr 2016 20:04:49 +0900 Subject: staging: wilc1000: rename u32WidsCount in handle_scan This patch renames u32WidsCount to index to avoid camelcase. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index ebf440c..7152765 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -735,7 +735,7 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) { s32 result = 0; struct wid wid_list[5]; - u32 u32WidsCount = 0; + u32 index = 0; u32 i; u8 *pu8Buffer; u8 valuesize = 0; @@ -760,15 +760,15 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) hif_drv->usr_scan_req.rcvd_ch_cnt = 0; - wid_list[u32WidsCount].id = (u16)WID_SSID_PROBE_REQ; - wid_list[u32WidsCount].type = WID_STR; + wid_list[index].id = (u16)WID_SSID_PROBE_REQ; + wid_list[index].type = WID_STR; for (i = 0; i < scan_info->hidden_network.n_ssids; i++) valuesize += ((scan_info->hidden_network.net_info[i].ssid_len) + 1); pu8HdnNtwrksWidVal = kmalloc(valuesize + 1, GFP_KERNEL); - wid_list[u32WidsCount].val = pu8HdnNtwrksWidVal; - if (wid_list[u32WidsCount].val) { - pu8Buffer = wid_list[u32WidsCount].val; + wid_list[index].val = pu8HdnNtwrksWidVal; + if (wid_list[index].val) { + pu8Buffer = wid_list[index].val; *pu8Buffer++ = scan_info->hidden_network.n_ssids; @@ -778,24 +778,24 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) pu8Buffer += scan_info->hidden_network.net_info[i].ssid_len; } - wid_list[u32WidsCount].size = (s32)(valuesize + 1); - u32WidsCount++; + wid_list[index].size = (s32)(valuesize + 1); + index++; } - wid_list[u32WidsCount].id = WID_INFO_ELEMENT_PROBE; - wid_list[u32WidsCount].type = WID_BIN_DATA; - wid_list[u32WidsCount].val = scan_info->ies; - wid_list[u32WidsCount].size = scan_info->ies_len; - u32WidsCount++; + wid_list[index].id = WID_INFO_ELEMENT_PROBE; + wid_list[index].type = WID_BIN_DATA; + wid_list[index].val = scan_info->ies; + wid_list[index].size = scan_info->ies_len; + index++; - wid_list[u32WidsCount].id = WID_SCAN_TYPE; - wid_list[u32WidsCount].type = WID_CHAR; - wid_list[u32WidsCount].size = sizeof(char); - wid_list[u32WidsCount].val = (s8 *)&scan_info->type; - u32WidsCount++; + wid_list[index].id = WID_SCAN_TYPE; + wid_list[index].type = WID_CHAR; + wid_list[index].size = sizeof(char); + wid_list[index].val = (s8 *)&scan_info->type; + index++; - wid_list[u32WidsCount].id = WID_SCAN_CHANNEL_LIST; - wid_list[u32WidsCount].type = WID_BIN_DATA; + wid_list[index].id = WID_SCAN_CHANNEL_LIST; + wid_list[index].type = WID_BIN_DATA; if (scan_info->ch_freq_list && scan_info->ch_list_len > 0) { @@ -807,15 +807,15 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) } } - wid_list[u32WidsCount].val = scan_info->ch_freq_list; - wid_list[u32WidsCount].size = scan_info->ch_list_len; - u32WidsCount++; + wid_list[index].val = scan_info->ch_freq_list; + wid_list[index].size = scan_info->ch_list_len; + index++; - wid_list[u32WidsCount].id = WID_START_SCAN_REQ; - wid_list[u32WidsCount].type = WID_CHAR; - wid_list[u32WidsCount].size = sizeof(char); - wid_list[u32WidsCount].val = (s8 *)&scan_info->src; - u32WidsCount++; + wid_list[index].id = WID_START_SCAN_REQ; + wid_list[index].type = WID_CHAR; + wid_list[index].size = sizeof(char); + wid_list[index].val = (s8 *)&scan_info->src; + index++; if (hif_drv->hif_state == HOST_IF_CONNECTED) scan_while_connected = true; @@ -823,7 +823,7 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) scan_while_connected = false; result = wilc_send_config_pkt(vif, SET_CFG, wid_list, - u32WidsCount, + index, wilc_get_vif_idx(vif)); if (result) -- cgit v0.10.2 From 2f27ad12ab9aa9793824353443cc982da9502d65 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 4 Apr 2016 20:04:50 +0900 Subject: staging: wilc1000: rename pu8Buffer in handle_scan This patch renames pu8Buffer to buffer to avoid camelcase. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 7152765..90d3946 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -737,7 +737,7 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) struct wid wid_list[5]; u32 index = 0; u32 i; - u8 *pu8Buffer; + u8 *buffer; u8 valuesize = 0; u8 *pu8HdnNtwrksWidVal = NULL; struct host_if_drv *hif_drv = vif->hif_drv; @@ -768,14 +768,14 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) pu8HdnNtwrksWidVal = kmalloc(valuesize + 1, GFP_KERNEL); wid_list[index].val = pu8HdnNtwrksWidVal; if (wid_list[index].val) { - pu8Buffer = wid_list[index].val; + buffer = wid_list[index].val; - *pu8Buffer++ = scan_info->hidden_network.n_ssids; + *buffer++ = scan_info->hidden_network.n_ssids; for (i = 0; i < scan_info->hidden_network.n_ssids; i++) { - *pu8Buffer++ = scan_info->hidden_network.net_info[i].ssid_len; - memcpy(pu8Buffer, scan_info->hidden_network.net_info[i].ssid, scan_info->hidden_network.net_info[i].ssid_len); - pu8Buffer += scan_info->hidden_network.net_info[i].ssid_len; + *buffer++ = scan_info->hidden_network.net_info[i].ssid_len; + memcpy(buffer, scan_info->hidden_network.net_info[i].ssid, scan_info->hidden_network.net_info[i].ssid_len); + buffer += scan_info->hidden_network.net_info[i].ssid_len; } wid_list[index].size = (s32)(valuesize + 1); -- cgit v0.10.2 From 3de8fbac6a8ac40f373e9bdb6b7ce7528070079a Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:19 +0900 Subject: staging: wilc1000: remove unused hif_drv in host_int_get_ipaddress This patch removes unused hif_drv in host_int_get_ipaddress. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 90d3946..0fd2c1d 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -4159,12 +4159,6 @@ static int host_int_get_ipaddress(struct wilc_vif *vif, u8 *ip_addr, u8 idx) { int result = 0; struct host_if_msg msg; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } memset(&msg, 0, sizeof(struct host_if_msg)); -- cgit v0.10.2 From cc1aa4c8e92b95e61309f563bbd41336553eae7f Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:20 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_setup_ipaddress This patch removes unused hif_drv in wilc_setup_ipaddress. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 0fd2c1d..d4e7aaa 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -4133,12 +4133,6 @@ int wilc_setup_ipaddress(struct wilc_vif *vif, u8 *ip_addr, u8 idx) { int result = 0; struct host_if_msg msg; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } memset(&msg, 0, sizeof(struct host_if_msg)); -- cgit v0.10.2 From 8bf4d84dca744853fa53b96b4b4b5fbfa73d0cc0 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:21 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_setup_multicast_filter This patch removes unused hif_drv in wilc_setup_multicast_filter. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index d4e7aaa..47ecf89 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3954,12 +3954,6 @@ int wilc_setup_multicast_filter(struct wilc_vif *vif, bool enabled, int result = 0; struct host_if_msg msg; struct set_multicast *multicast_filter_param = &msg.body.multicast_info; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } memset(&msg, 0, sizeof(struct host_if_msg)); -- cgit v0.10.2 From 3cf996d4280578a1c6fea17d26cb38d9966065cf Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:22 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_set_power_mgmt This patch removes unused hif_drv in wilc_set_power_mgmt. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 47ecf89..9a521ba 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3924,12 +3924,6 @@ int wilc_set_power_mgmt(struct wilc_vif *vif, bool enabled, u32 timeout) int result = 0; struct host_if_msg msg; struct power_mgmt_param *pwr_mgmt_info = &msg.body.pwr_mgmt_info; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } if (wilc_wlan_get_num_conn_ifcs(vif->wilc) == 2 && enabled) return 0; -- cgit v0.10.2 From f2b01d04e8f807379666ca500232239d3e272332 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:23 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_edit_station This patch removes unused hif_drv in wilc_edit_station. There is no need to checku null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 9a521ba..85a1e73 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3891,12 +3891,6 @@ int wilc_edit_station(struct wilc_vif *vif, int result = 0; struct host_if_msg msg; struct add_sta_param *add_sta_info = &msg.body.add_sta_info; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } memset(&msg, 0, sizeof(struct host_if_msg)); -- cgit v0.10.2 From d9a90eea69a0345427aace679b024f8022cc21c9 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:24 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_del_allstation This patch removes unused hif_drv in wilc_del_allstation. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 85a1e73..0a0be52 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3850,16 +3850,10 @@ int wilc_del_allstation(struct wilc_vif *vif, u8 mac_addr[][ETH_ALEN]) int result = 0; struct host_if_msg msg; struct del_all_sta *del_all_sta_info = &msg.body.del_all_sta_info; - struct host_if_drv *hif_drv = vif->hif_drv; u8 zero_addr[ETH_ALEN] = {0}; int i; u8 assoc_sta = 0; - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } - memset(&msg, 0, sizeof(struct host_if_msg)); msg.id = HOST_IF_MSG_DEL_ALL_STA; -- cgit v0.10.2 From d5db44143584d665f7308bfb6182b50930afdd2c Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:25 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_del_station This patch removes unused hif_drv in wilc_del_station. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 0a0be52..0930a08 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3822,12 +3822,6 @@ int wilc_del_station(struct wilc_vif *vif, const u8 *mac_addr) int result = 0; struct host_if_msg msg; struct del_sta *del_sta_info = &msg.body.del_sta_info; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } memset(&msg, 0, sizeof(struct host_if_msg)); -- cgit v0.10.2 From b0474e9eb9621bb1f9243fb0c9571dec150163a9 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:26 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_add_station This patch removes unused hif_drv in wilc_add_station. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 0930a08..0f18b9b 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3790,12 +3790,6 @@ int wilc_add_station(struct wilc_vif *vif, struct add_sta_param *sta_param) int result = 0; struct host_if_msg msg; struct add_sta_param *add_sta_info = &msg.body.add_sta_info; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } memset(&msg, 0, sizeof(struct host_if_msg)); -- cgit v0.10.2 From 1f4b12f08939d160cbb8d619a67b05ed96435f36 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:27 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_remain_on_channel This patch removes unused hif_drv in wilc_remain_on_channel. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 0f18b9b..14ebc3e 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3632,12 +3632,6 @@ int wilc_remain_on_channel(struct wilc_vif *vif, u32 session_id, { int result = 0; struct host_if_msg msg; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } memset(&msg, 0, sizeof(struct host_if_msg)); -- cgit v0.10.2 From a61c42319bc3be9451d7169d4c068bc9fac24942 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:28 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_set_mac_chnl_num This patch removes unused hif_drv in wilc_set_mac_chnl_num. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 14ebc3e..24485d6 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3137,12 +3137,6 @@ int wilc_set_mac_chnl_num(struct wilc_vif *vif, u8 channel) { int result; struct host_if_msg msg; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } memset(&msg, 0, sizeof(struct host_if_msg)); msg.id = HOST_IF_MSG_SET_CHANNEL; -- cgit v0.10.2 From 11d9e460ccb93742bfdc6ec2369a154eb2126e5a Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:29 +0900 Subject: staging: wilc1000: remove unused hif_drv in host_int_get_assoc_res_info This patch removes unused hif_drv in host_int_get_assoc_res_info. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 24485d6..38ae24d 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3109,12 +3109,6 @@ static s32 host_int_get_assoc_res_info(struct wilc_vif *vif, { s32 result = 0; struct wid wid; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "Driver is null\n"); - return -EFAULT; - } wid.id = (u16)WID_ASSOC_RES_INFO; wid.type = WID_STR; -- cgit v0.10.2 From 4965c4dcdd696d699be1460b1010d9be18979122 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:30 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_set_pmkid_info This patch removes unused hif_drv in wilc_set_pmkid_info. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 38ae24d..a40416c 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -2960,14 +2960,8 @@ int wilc_set_pmkid_info(struct wilc_vif *vif, { int result = 0; struct host_if_msg msg; - struct host_if_drv *hif_drv = vif->hif_drv; int i; - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } - memset(&msg, 0, sizeof(struct host_if_msg)); msg.id = HOST_IF_MSG_KEY; -- cgit v0.10.2 From d5dc9402894eefb54548ca532fe3cd358373dcbd Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:31 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_del_beacon This patch removes unused hif_drv in wilc_del_beacon. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index a40416c..5d4787c 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3744,12 +3744,6 @@ int wilc_del_beacon(struct wilc_vif *vif) { int result = 0; struct host_if_msg msg; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } msg.id = HOST_IF_MSG_DEL_BEACON; msg.vif = vif; -- cgit v0.10.2 From 31aab0e0abdde4680b88242e99beb1d0c7a173ed Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 5 Apr 2016 15:38:32 +0900 Subject: staging: wilc1000: remove unused hif_drv in wilc_add_beacon This patch removes unused hif_drv in wilc_add_beacon. There is no need to check null and print debug log. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 5d4787c..1e916a5 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -3695,12 +3695,6 @@ int wilc_add_beacon(struct wilc_vif *vif, u32 interval, u32 dtim_period, int result = 0; struct host_if_msg msg; struct beacon_attr *beacon_info = &msg.body.beacon_info; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv) { - netdev_err(vif->ndev, "driver is null\n"); - return -EFAULT; - } memset(&msg, 0, sizeof(struct host_if_msg)); -- cgit v0.10.2 From 12915c51e99249aa360e9006e591ebce676c23af Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Thu, 7 Apr 2016 08:10:37 +0900 Subject: staging: wilc1000: change return type of ret variable in handle_get_tx_pwr This patch changes return type of ret variable from s32 to int. ret has return value from wilc_send_config_pkt that has return type of int. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 1e916a5..fa56426 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -2468,7 +2468,7 @@ static void handle_set_tx_pwr(struct wilc_vif *vif, u8 tx_pwr) static void handle_get_tx_pwr(struct wilc_vif *vif, u8 *tx_pwr) { - s32 ret = 0; + int ret = 0; struct wid wid; wid.id = (u16)WID_TX_POWER; -- cgit v0.10.2 From 62a0d45af67896f2ca4a53a07fa89b7788db8a72 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Thu, 7 Apr 2016 08:10:38 +0900 Subject: staging: wilc1000: change handle_set_wfi_drv_handler's return type to void When handle_set_wfi_drv_handler is called in hostIFthread that is a kernel thread, it is not checked return type of this function. This patch changes return type to void and removes braces if statement due to have a single statement. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index fa56426..19d20b0 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -307,8 +307,8 @@ static void handle_set_channel(struct wilc_vif *vif, netdev_err(vif->ndev, "Failed to set channel\n"); } -static s32 handle_set_wfi_drv_handler(struct wilc_vif *vif, - struct drv_handler *hif_drv_handler) +static void handle_set_wfi_drv_handler(struct wilc_vif *vif, + struct drv_handler *hif_drv_handler) { s32 result = 0; struct wid wid; @@ -324,12 +324,8 @@ static s32 handle_set_wfi_drv_handler(struct wilc_vif *vif, if (!hif_drv_handler->handler) complete(&hif_driver_comp); - if (result) { + if (result) netdev_err(vif->ndev, "Failed to set driver handler\n"); - return -EINVAL; - } - - return result; } static s32 handle_set_operation_mode(struct wilc_vif *vif, -- cgit v0.10.2 From d22002338f74bad5f86a206fadc1832543c59187 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Thu, 7 Apr 2016 08:10:39 +0900 Subject: staging: wilc1000: change data type of result in handle_set_wfi_drv_handler This patch changes data type of result variable from s32 to int. result is used to get return value from wilc_send_config_pkt that has return type of int. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 19d20b0..88141e6 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -310,7 +310,7 @@ static void handle_set_channel(struct wilc_vif *vif, static void handle_set_wfi_drv_handler(struct wilc_vif *vif, struct drv_handler *hif_drv_handler) { - s32 result = 0; + int result = 0; struct wid wid; wid.id = (u16)WID_SET_DRV_HANDLER; -- cgit v0.10.2 From fdcc285b77a115f7207321ce1cf749f0ea6c0b92 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Thu, 7 Apr 2016 08:10:40 +0900 Subject: staging: wilc1000: rename result in handle_set_wfi_drv_handler This patch renames result to ret that is used to get return value from wilc_send_config_pkt. Some handle_*() function are used as result, others are used as ret. It will be changed as ret in all handle_*() function to match variable name. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 88141e6..98b4f32 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -310,7 +310,7 @@ static void handle_set_channel(struct wilc_vif *vif, static void handle_set_wfi_drv_handler(struct wilc_vif *vif, struct drv_handler *hif_drv_handler) { - int result = 0; + int ret = 0; struct wid wid; wid.id = (u16)WID_SET_DRV_HANDLER; @@ -318,13 +318,13 @@ static void handle_set_wfi_drv_handler(struct wilc_vif *vif, wid.val = (s8 *)hif_drv_handler; wid.size = sizeof(*hif_drv_handler); - result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1, - hif_drv_handler->handler); + ret = wilc_send_config_pkt(vif, SET_CFG, &wid, 1, + hif_drv_handler->handler); if (!hif_drv_handler->handler) complete(&hif_driver_comp); - if (result) + if (ret) netdev_err(vif->ndev, "Failed to set driver handler\n"); } -- cgit v0.10.2 From b093d4fe608c5f7d795d0c516baff495f9651525 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Thu, 7 Apr 2016 08:10:41 +0900 Subject: staging: wilc1000: change handle_set_operation_mode's return type to void When handle_set_operation_mode is called in hostIFthread that is a kernel thread, it is not checked return type of this function. This patch changes return type to void and removes braces if statement due to have a single statement. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 98b4f32..81d2105 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -328,8 +328,8 @@ static void handle_set_wfi_drv_handler(struct wilc_vif *vif, netdev_err(vif->ndev, "Failed to set driver handler\n"); } -static s32 handle_set_operation_mode(struct wilc_vif *vif, - struct op_mode *hif_op_mode) +static void handle_set_operation_mode(struct wilc_vif *vif, + struct op_mode *hif_op_mode) { s32 result = 0; struct wid wid; @@ -345,12 +345,8 @@ static s32 handle_set_operation_mode(struct wilc_vif *vif, if ((hif_op_mode->mode) == IDLE_MODE) complete(&hif_driver_comp); - if (result) { + if (result) netdev_err(vif->ndev, "Failed to set driver handler\n"); - return -EINVAL; - } - - return result; } static s32 handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx) -- cgit v0.10.2 From 197b053d9c83999d6b93b01bb355e3cac4474779 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Thu, 7 Apr 2016 08:10:42 +0900 Subject: staging: wilc1000: change data type of result in handle_set_operation_mode This patch changes data type of result variable from s32 to int. result is used to get return value from wilc_send_config_pkt that has return type of int. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 81d2105..4b891c2 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -331,7 +331,7 @@ static void handle_set_wfi_drv_handler(struct wilc_vif *vif, static void handle_set_operation_mode(struct wilc_vif *vif, struct op_mode *hif_op_mode) { - s32 result = 0; + int result = 0; struct wid wid; wid.id = (u16)WID_SET_OPERATION_MODE; -- cgit v0.10.2 From 14f3b086fc8225f60b0efaafec2a7bca443f8171 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Thu, 7 Apr 2016 08:10:43 +0900 Subject: staging: wilc1000: rename result in handle_set_operation_mode This patch renames result to ret that is used to get return value from wilc_send_config_pkt. Some handle_*() functions are used as result, others are used as ret. It will be changed as ret in all handle_*() functions to match variable name. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 4b891c2..70f348a 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -331,7 +331,7 @@ static void handle_set_wfi_drv_handler(struct wilc_vif *vif, static void handle_set_operation_mode(struct wilc_vif *vif, struct op_mode *hif_op_mode) { - int result = 0; + int ret = 0; struct wid wid; wid.id = (u16)WID_SET_OPERATION_MODE; @@ -339,13 +339,13 @@ static void handle_set_operation_mode(struct wilc_vif *vif, wid.val = (s8 *)&hif_op_mode->mode; wid.size = sizeof(u32); - result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1, - wilc_get_vif_idx(vif)); + ret = wilc_send_config_pkt(vif, SET_CFG, &wid, 1, + wilc_get_vif_idx(vif)); if ((hif_op_mode->mode) == IDLE_MODE) complete(&hif_driver_comp); - if (result) + if (ret) netdev_err(vif->ndev, "Failed to set driver handler\n"); } -- cgit v0.10.2 From fc6138b6cfc0319791ff860aecd06126b0c6e578 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 19 Apr 2016 09:35:29 +0900 Subject: staging: wilc1000: change handle_set_ip_address's return type to void When handle_set_ip_address is called in hostIFthread that is a kernel thread, it is not checked return type of this function. This patch changes return type to void and removes braces if statement due to have a single statement. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 70f348a..7fcdbb3 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -349,7 +349,7 @@ static void handle_set_operation_mode(struct wilc_vif *vif, netdev_err(vif->ndev, "Failed to set driver handler\n"); } -static s32 handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx) +static void handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx) { s32 result = 0; struct wid wid; @@ -370,12 +370,8 @@ static s32 handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx) host_int_get_ipaddress(vif, firmware_ip_addr, idx); - if (result) { + if (result) netdev_err(vif->ndev, "Failed to set IP address\n"); - return -EINVAL; - } - - return result; } static s32 handle_get_ip_address(struct wilc_vif *vif, u8 idx) -- cgit v0.10.2 From cd7293ef3939d1220c280b9e11a520ce4ba57d56 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 19 Apr 2016 09:35:30 +0900 Subject: staging: wilc1000: change data type of result in handle_set_ip_address This patch changes data type of result variable from s32 to int. result is used to get return value from wilc_send_config_pkt that has return type of int. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 7fcdbb3..9366648 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -351,7 +351,7 @@ static void handle_set_operation_mode(struct wilc_vif *vif, static void handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx) { - s32 result = 0; + int result = 0; struct wid wid; char firmware_ip_addr[4] = {0}; -- cgit v0.10.2 From 8958f5811ca5f602cfb2987f7977744a458421af Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Tue, 19 Apr 2016 09:35:31 +0900 Subject: staging: wilc1000: rename result in handle_set_ip_address This patch renames result to ret that is used to get return value from wilc_send_config_pkt. Some handle_*() functions are used as result, others are used as ret. It will be changed as ret in all handle_*() functions to match variable name. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 9366648..605cf8f 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -351,7 +351,7 @@ static void handle_set_operation_mode(struct wilc_vif *vif, static void handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx) { - int result = 0; + int ret = 0; struct wid wid; char firmware_ip_addr[4] = {0}; @@ -365,12 +365,12 @@ static void handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx) wid.val = (u8 *)ip_addr; wid.size = IP_ALEN; - result = wilc_send_config_pkt(vif, SET_CFG, &wid, 1, - wilc_get_vif_idx(vif)); + ret = wilc_send_config_pkt(vif, SET_CFG, &wid, 1, + wilc_get_vif_idx(vif)); host_int_get_ipaddress(vif, firmware_ip_addr, idx); - if (result) + if (ret) netdev_err(vif->ndev, "Failed to set IP address\n"); } -- cgit v0.10.2 From 245b431b76ada80aa2a3ea36e46ab5a45b84e0ee Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Mon, 25 Apr 2016 02:07:18 +0300 Subject: Staging: wilc1000: Freed memory in case of error This patch frees memory allocated inside wilc_wlan_txq_add_cfg_pkt() in case wilc_wlan_txq_add_to_head() fails. Signed-off-by: Claudiu Beznea Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c index 7da3b4a..11e16d5 100644 --- a/drivers/staging/wilc1000/wilc_wlan.c +++ b/drivers/staging/wilc1000/wilc_wlan.c @@ -325,8 +325,11 @@ static int wilc_wlan_txq_add_cfg_pkt(struct wilc_vif *vif, u8 *buffer, tqe->priv = NULL; tqe->tcp_pending_ack_idx = NOT_TCP_ACK; - if (wilc_wlan_txq_add_to_head(vif, tqe)) + if (wilc_wlan_txq_add_to_head(vif, tqe)) { + kfree(tqe); return 0; + } + return 1; } -- cgit v0.10.2 From 853adce6fd9a3caec583e115cd9f5def6f67daf7 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Thu, 14 Apr 2016 20:48:49 +0530 Subject: staging: wilc1000: remove unused variables These variables were havnig the pointer returned by wiphy_priv() but they were never used. Signed-off-by: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 48bbfa2..4f93c11 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -857,7 +857,6 @@ int wilc_mac_open(struct net_device *ndev) unsigned char mac_add[ETH_ALEN] = {0}; int ret = 0; int i = 0; - struct wilc_priv *priv; struct wilc *wl; vif = netdev_priv(ndev); @@ -868,7 +867,6 @@ int wilc_mac_open(struct net_device *ndev) return -ENODEV; } - priv = wiphy_priv(vif->ndev->ieee80211_ptr->wiphy); netdev_dbg(ndev, "MAC OPEN[%p]\n", ndev); ret = wilc_init_host_int(ndev); @@ -945,14 +943,10 @@ static struct net_device_stats *mac_stats(struct net_device *dev) static void wilc_set_multicast_list(struct net_device *dev) { struct netdev_hw_addr *ha; - struct wilc_priv *priv; - struct host_if_drv *hif_drv; struct wilc_vif *vif; int i = 0; - priv = wiphy_priv(dev->ieee80211_ptr->wiphy); vif = netdev_priv(dev); - hif_drv = (struct host_if_drv *)priv->hif_drv; if (dev->flags & IFF_PROMISC) return; @@ -1106,7 +1100,6 @@ static int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd) s8 rssi; u32 size = 0, length = 0; struct wilc_vif *vif; - struct wilc_priv *priv; s32 ret = 0; struct wilc *wilc; @@ -1130,7 +1123,6 @@ static int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd) return PTR_ERR(buff); if (strncasecmp(buff, "RSSI", length) == 0) { - priv = wiphy_priv(vif->ndev->ieee80211_ptr->wiphy); ret = wilc_get_rssi(vif, &rssi); netdev_info(ndev, "RSSI :%d\n", rssi); -- cgit v0.10.2 From 6a957193ba83e5487705f63011307d202fff69f8 Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Wed, 13 Apr 2016 11:56:36 -0400 Subject: staging: unisys: visornic: convert BUG_ON to dev_err() message The caller of visor_copy_fragsinfo_from_skb() is prepared to log a dev_err() message if it fails (by returning a negative value), so we now just fail in the one occasion where visor_copy_fragsinfo_from_skb() was doing a BUG_ON. There was also a problem before where visor_copy_fragsinfo_from_skb() was returning a negative to indicate error, yet it was declared to return an unsigned value! So obviously that needed correcting too. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c index 0ec952a..de983d2 100644 --- a/drivers/staging/unisys/visornic/visornic_main.c +++ b/drivers/staging/unisys/visornic/visornic_main.c @@ -209,7 +209,7 @@ static void poll_for_irq(unsigned long v); * Return value indicates number of entries filled in frags * Negative values indicate an error. */ -static unsigned int +static int visor_copy_fragsinfo_from_skb(struct sk_buff *skb, unsigned int firstfraglen, unsigned int frags_max, struct phys_info frags[]) @@ -269,11 +269,9 @@ visor_copy_fragsinfo_from_skb(struct sk_buff *skb, unsigned int firstfraglen, * zero if the frags array is out of room * That should never happen because we * fail above, if count+numfrags > frags_max. - * Given that theres no recovery mechanism from putting - * half a packet in the I/O channel, panic here as this - * should never happen */ - BUG_ON(!count); + if (!count) + return -EINVAL; } } if (skb_shinfo(skb)->frag_list) { -- cgit v0.10.2 From 38d56c2fad91a02d289df40b029300310fb6c75a Mon Sep 17 00:00:00 2001 From: Erik Arfvidson Date: Wed, 13 Apr 2016 12:07:07 -0400 Subject: staging: unisys: added display string size define Display string size that is guaranteed to be no longer the 99 characters. Don't use a magic number throughout the code, define it once and use it throughout. Signed-off-by: Erik Arfvidson Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 547be8b..6216f4b 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -33,6 +33,9 @@ static int visorbus_forcenomatch; static int visorbus_debugref; #define SERIALLOOPBACKCHANADDR (100 * 1024 * 1024) +/* Display string that is guaranteed to be no longer the 99 characters*/ +#define LINESIZE 99 + #define CURRENT_FILE_PC VISOR_BUS_PC_visorbus_main_c #define POLLJIFFIES_TESTWORK 100 #define POLLJIFFIES_NORMALCHANNEL 10 @@ -279,7 +282,7 @@ static ssize_t typeguid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct visor_device *vdev = to_visor_device(dev); - char typeid[99]; + char typeid[LINESIZE]; if (!vdev->visorchannel) return 0; @@ -291,7 +294,7 @@ static ssize_t zoneguid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct visor_device *vdev = to_visor_device(dev); - char zoneid[99]; + char zoneid[LINESIZE]; if (!vdev->visorchannel) return 0; -- cgit v0.10.2 From 538b387234563e030cd9ad8983ad3de8eaf03e13 Mon Sep 17 00:00:00 2001 From: David Binder Date: Wed, 13 Apr 2016 16:08:41 -0400 Subject: staging: unisys: Documentation: Remove proc-entries.txt Unisys drivers no longer utilize procfs. Therefore, the documentation for our procfs entries is no longer needed. Signed-off-by: David Binder Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/Documentation/proc-entries.txt b/drivers/staging/unisys/Documentation/proc-entries.txt deleted file mode 100644 index 426f92b..0000000 --- a/drivers/staging/unisys/Documentation/proc-entries.txt +++ /dev/null @@ -1,93 +0,0 @@ - s-Par Proc Entries -This document describes the proc entries created by the Unisys s-Par modules. - -Support Module Entries -These entries are provided primarily for debugging. - -/proc/uislib/info: This entry contains debugging information for the -uislib module, including bus information and memory usage. - -/proc/visorchipset/controlvm: This directory contains debugging -entries for the controlvm channel used by visorchipset. - -/proc/uislib/platform: This entry is used to display the platform -number this node is in the system. For some guests, this may be -invalid. - -/proc/visorchipset/chipsetready: This entry is written to by scripts -to signify that any user level activity has been completed before the -guest can be considered running and is shown as running in the s-Par -UI. - -Device Entries -These entries provide status of the devices shared by a service partition. - -/proc/uislib/vbus: this is a directory containing entries for each -virtual bus. Each numbered sub-directory contains an info entry, which -describes the devices that appear on that bus. - -/proc/uislib/cycles_before_wait: This entry is used to tune -performance, by setting the number of cycles we wait before going idle -when in polling mode. A longer time will reduce message latency but -spend more processing time polling. - -/proc/uislib/smart_wakeup: This entry is used to tune performance, by -enabling or disabling smart wakeup. - -/proc/virthba/info: This entry contains debugging information for the -virthba module, including interrupt information and memory usage. - -/proc/virthba/enable_ints: This entry controls interrupt use by the -virthba module. Writing a 0 to this entry will disable interrupts. - -/proc/virtnic/info: This entry contains debugging information for the -virtnic module, including interrupt information, send and receive -counts, and other device information. - -/proc/virtnic/ethX: This is a directory containing entries for each -virtual NIC. Each named subdirectory contains two entries, -clientstring and zone. - -/proc/virtpci/info: This entry contains debugging information for the -virtpci module, including virtual PCI bus information and device -locations. - -/proc/virtnic/enable_ints: This entry controls interrupt use by the -virtnic module. Writing a 0 to this entry will disable interrupts. - -Visorconinclient, visordiag, visornoop, visorserialclient, and -visorvideoclient Entries - -The entries in proc for these modules all follow the same -pattern. Each module has its own proc directory with the same name, -e.g. visordiag presents a /proc/visordiag directory. Inside of the -module's directory are a device directory, which contains one numbered -directory for each device provided by that module. Each device has a -diag entry that presents the device number and visorbus name for that -device. The module directory also has a driver/diag entry, which -reports the corresponding s-Par version number of the driver. - -Automated Installation Entries - -These entries are used to pass information between the s-Par platform -and the Linux-based installation and recovery tool. These values are -read/write, however, the guest can only reset them to 0, or report an -error status through the installer entry. The values are only set via -s-Par's firmware interface, to help prevent accidentally booting into -the tool. - -/proc/visorchipset/boottotool: This entry instructs s-Par that the -next reboot will launch the installation and recovery tool. If set to -0, the next boot will happen according to the UEFI boot manager -settings. - -/proc/visorchipset/toolaction: This entry indicates the installation -and recovery tool mode requested for the next boot. - -/proc/visorchipset/installer: this entry is used by the installation -and recovery tool to pass status and result information back to the -s-Par firmware. - -/proc/visorchipset/partition: This directory contains the guest -partition configuration data for each virtual bus, for use during -installation and at runtime for s-Par service partitions. diff --git a/drivers/staging/unisys/MAINTAINERS b/drivers/staging/unisys/MAINTAINERS index cc46e37..1f0425b 100644 --- a/drivers/staging/unisys/MAINTAINERS +++ b/drivers/staging/unisys/MAINTAINERS @@ -2,5 +2,4 @@ Unisys s-Par drivers M: David Kershner S: Maintained F: Documentation/s-Par/overview.txt -F: Documentation/s-Par/proc-entries.txt F: drivers/staging/unisys/ -- cgit v0.10.2 From 6d24b4b10e8a5a299fe0c85060e41a367727efb3 Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Mon, 18 Apr 2016 23:22:00 -0400 Subject: staging: unisys: include: remove unused fields from struct visor_driver The build_date and build_time fields are not used, and have been removed. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index db59d97..3cc511f 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -68,8 +68,6 @@ struct visor_driver { const char *name; const char *version; const char *vertag; - const char *build_date; - const char *build_time; struct module *owner; /** Types of channels handled by this driver, ending with 0 GUID. -- cgit v0.10.2 From b9edaf7cebb4ab1e8bef797e89617fa5f113041a Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Mon, 18 Apr 2016 23:22:01 -0400 Subject: staging: unisys: include: Added kernel-doc for struct visor_driver This adds kerneldoc style comments to the visor_driver struct since it's shared between multiple modules. Signed-off-by: Alexander Curtin Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index 3cc511f..9cc492a 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -61,52 +61,55 @@ struct visor_channeltype_descriptor { const char *name; }; -/** Information provided by each visor driver when it registers with the - * visorbus driver. +/** + * struct visor_driver - Information provided by each visor driver when it + * registers with the visorbus driver. + * @name: Name of the visor driver. + * @version: The numbered version of the driver (x.x.xxx). + * @vertag: A human readable version string. + * @owner: The module owner. + * @channel_types: Types of channels handled by this driver, ending with + * a zero GUID. Our specialized BUS.match() method knows + * about this list, and uses it to determine whether this + * driver will in fact handle a new device that it has + * detected. + * @probe: Called when a new device comes online, by our probe() + * function specified by driver.probe() (triggered + * ultimately by some call to driver_register(), + * bus_add_driver(), or driver_attach()). + * @remove: Called when a new device is removed, by our remove() + * function specified by driver.remove() (triggered + * ultimately by some call to device_release_driver()). + * @channel_interrupt: Called periodically, whenever there is a possiblity + * that "something interesting" may have happened to the + * channel. + * @pause: Called to initiate a change of the device's state. If + * the return valu`e is < 0, there was an error and the + * state transition will NOT occur. If the return value + * is >= 0, then the state transition was INITIATED + * successfully, and complete_func() will be called (or + * was just called) with the final status when either the + * state transition fails or completes successfully. + * @resume: Behaves similar to pause. + * @driver: Private reference to the device driver. For use by bus + * driver only. + * @version_attr: Private version field. For use by bus driver only. */ struct visor_driver { const char *name; const char *version; const char *vertag; struct module *owner; - - /** Types of channels handled by this driver, ending with 0 GUID. - * Our specialized BUS.match() method knows about this list, and - * uses it to determine whether this driver will in fact handle a - * new device that it has detected. - */ struct visor_channeltype_descriptor *channel_types; - - /** Called when a new device comes online, by our probe() function - * specified by driver.probe() (triggered ultimately by some call - * to driver_register() / bus_add_driver() / driver_attach()). - */ int (*probe)(struct visor_device *dev); - - /** Called when a new device is removed, by our remove() function - * specified by driver.remove() (triggered ultimately by some call - * to device_release_driver()). - */ void (*remove)(struct visor_device *dev); - - /** Called periodically, whenever there is a possibility that - * "something interesting" may have happened to the channel state. - */ void (*channel_interrupt)(struct visor_device *dev); - - /** Called to initiate a change of the device's state. If the return - * valu`e is < 0, there was an error and the state transition will NOT - * occur. If the return value is >= 0, then the state transition was - * INITIATED successfully, and complete_func() will be called (or was - * just called) with the final status when either the state transition - * fails or completes successfully. - */ int (*pause)(struct visor_device *dev, visorbus_state_complete_func complete_func); int (*resume)(struct visor_device *dev, visorbus_state_complete_func complete_func); - /** These fields are for private use by the bus driver only. */ + /* These fields are for private use by the bus driver only. */ struct device_driver driver; struct driver_attribute version_attr; }; -- cgit v0.10.2 From 39b92809830b1c0b4d00e934d39a5815c85fd956 Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Mon, 18 Apr 2016 23:22:02 -0400 Subject: staging: unisys: include: Added kerneldoc comments to visor_device The visor_device struct is used between multiple drivers, so this adds kerneldoc comments to the fields. Signed-off-by: Alexander Curtin Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h index 9cc492a..9baf1ec 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/drivers/staging/unisys/include/visorbus.h @@ -117,25 +117,48 @@ struct visor_driver { #define to_visor_driver(x) ((x) ? \ (container_of(x, struct visor_driver, driver)) : (NULL)) -/** A device type for things "plugged" into the visorbus bus */ +/** + * struct visor_device - A device type for things "plugged" into the visorbus + * bus + * visorchannel: Points to the channel that the device is + * associated with. + * channel_type_guid: Identifies the channel type to the bus driver. + * device: Device struct meant for use by the bus driver + * only. + * list_all: Used by the bus driver to enumerate devices. + * periodic_work: Device work queue. Private use by bus driver + * only. + * being_removed: Indicates that the device is being removed from + * the bus. Private bus driver use only. + * visordriver_callback_lock: Used by the bus driver to lock when handling + * channel events. + * pausing: Indicates that a change towards a paused state. + * is in progress. Only modified by the bus driver. + * resuming: Indicates that a change towards a running state + * is in progress. Only modified by the bus driver. + * chipset_bus_no: Private field used by the bus driver. + * chipset_dev_no: Private field used the bus driver. + * state: Used to indicate the current state of the + * device. + * inst: Unique GUID for this instance of the device. + * name: Name of the device. + * pending_msg_hdr: For private use by bus driver to respond to + * hypervisor requests. + * vbus_hdr_info: A pointer to header info. Private use by bus + * driver. + * partition_uuid: Indicates client partion id. This should be the + * same across all visor_devices in the current + * guest. Private use by bus driver only. + */ struct visor_device { - /** visor driver can use the visorchannel member with the functions - * defined in visorchannel.h to access the channel - */ struct visorchannel *visorchannel; uuid_le channel_type_guid; - - /** These fields are for private use by the bus driver only. - * A notable exception is that the visor driver can use - * visor_get_drvdata() and visor_set_drvdata() to retrieve or stash - * private visor driver specific data within the device member. - */ + /* These fields are for private use by the bus driver only. */ struct device device; struct list_head list_all; struct periodic_work *periodic_work; bool being_removed; - /* the code will detect and behave appropriately) */ struct semaphore visordriver_callback_lock; bool pausing; bool resuming; -- cgit v0.10.2 From 260d89929c2f45b4b46180e58798bcdee53e0c07 Mon Sep 17 00:00:00 2001 From: Erik Arfvidson Date: Tue, 19 Apr 2016 08:11:52 -0400 Subject: staging: unisys: visorbus: remove unused chipsetready information Chipsetready sysfs entry is not used by any guests or service partitions. remove unused g_chipset_msg_hdr our service partition remove unused chipsetready_store and driver attributes: chipsetready_store() visorchipset_guest_attrs visorchipset_guest_groupw remove unused chipsets_events: check_chipset_events() clear_chipset_events() visorchipset_holdchipsetready remove sysfs documentation dealing with chipsetready Signed-off-by: Erik Arfvidson Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/Documentation/ABI/sysfs-platform-visorchipset b/drivers/staging/unisys/Documentation/ABI/sysfs-platform-visorchipset index b0498ff..c2359de 100644 --- a/drivers/staging/unisys/Documentation/ABI/sysfs-platform-visorchipset +++ b/drivers/staging/unisys/Documentation/ABI/sysfs-platform-visorchipset @@ -50,20 +50,6 @@ Description: This field is used to tell s-Par which type of recovery tool commission the guest. Users: sparmaintainer@unisys.com -What: guest/chipsetready -Date: 7/18/2014 -KernelVersion: TBD -Contact: sparmaintainer@unisys.com -Description: This entry is used by Unisys application software on the guest - to acknowledge completion of specific events for integration - purposes, but these acknowledgements are not required for the - guest to operate correctly. The interface accepts one of two - strings: MODULES_LOADED to indicate that the s-Par driver - modules have been loaded successfully, or CALLHOMEDISK_MOUNTED, - which indicates that the disk used to support call home services - has been successfully mounted. -Users: sparmaintainer@unisys.com - What: parahotplug/deviceenabled Date: 7/18/2014 KernelVersion: TBD diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index c1b872c..d7ec463 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -59,7 +59,6 @@ */ static int visorchipset_major; static int visorchipset_visorbusregwait = 1; /* default is on */ -static int visorchipset_holdchipsetready; static unsigned long controlvm_payload_bytes_buffered; static u32 dump_vhba_bus; @@ -90,9 +89,6 @@ static unsigned long poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST; static unsigned long most_recent_message_jiffies; static int visorbusregistered; -#define MAX_CHIPSET_EVENTS 2 -static u8 chipset_events[MAX_CHIPSET_EVENTS] = { 0, 0 }; - struct parser_context { unsigned long allocbytes; unsigned long param_bytes; @@ -107,7 +103,6 @@ static DEFINE_SEMAPHORE(notifier_lock); static struct cdev file_cdev; static struct visorchannel **file_controlvm_channel; -static struct controlvm_message_header g_chipset_msg_hdr; static struct controlvm_message_packet g_devicechangestate_packet; static LIST_HEAD(bus_info_list); @@ -274,11 +269,6 @@ static ssize_t remaining_steps_store(struct device *dev, const char *buf, size_t count); static DEVICE_ATTR_RW(remaining_steps); -static ssize_t chipsetready_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count); -static DEVICE_ATTR_WO(chipsetready); - static ssize_t devicedisabled_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count); @@ -303,16 +293,6 @@ static struct attribute_group visorchipset_install_group = { .attrs = visorchipset_install_attrs }; -static struct attribute *visorchipset_guest_attrs[] = { - &dev_attr_chipsetready.attr, - NULL -}; - -static struct attribute_group visorchipset_guest_group = { - .name = "guest", - .attrs = visorchipset_guest_attrs -}; - static struct attribute *visorchipset_parahotplug_attrs[] = { &dev_attr_devicedisabled.attr, &dev_attr_deviceenabled.attr, @@ -326,7 +306,6 @@ static struct attribute_group visorchipset_parahotplug_group = { static const struct attribute_group *visorchipset_dev_groups[] = { &visorchipset_install_group, - &visorchipset_guest_group, &visorchipset_parahotplug_group, NULL }; @@ -712,26 +691,6 @@ struct visor_device *visorbus_get_device_by_id(u32 bus_no, u32 dev_no, } EXPORT_SYMBOL(visorbus_get_device_by_id); -static u8 -check_chipset_events(void) -{ - int i; - u8 send_msg = 1; - /* Check events to determine if response should be sent */ - for (i = 0; i < MAX_CHIPSET_EVENTS; i++) - send_msg &= chipset_events[i]; - return send_msg; -} - -static void -clear_chipset_events(void) -{ - int i; - /* Clear chipset_events */ - for (i = 0; i < MAX_CHIPSET_EVENTS; i++) - chipset_events[i] = 0; -} - void visorchipset_register_busdev( struct visorchipset_busdev_notifiers *notifiers, @@ -1457,14 +1416,8 @@ chipset_ready(struct controlvm_message_header *msg_hdr) if (rc != CONTROLVM_RESP_SUCCESS) rc = -rc; - if (msg_hdr->flags.response_expected && !visorchipset_holdchipsetready) + if (msg_hdr->flags.response_expected) controlvm_respond(msg_hdr, rc); - if (msg_hdr->flags.response_expected && visorchipset_holdchipsetready) { - /* Send CHIPSET_READY response when all modules have been loaded - * and disks mounted for the partition - */ - g_chipset_msg_hdr = *msg_hdr; - } } static void @@ -1859,19 +1812,6 @@ controlvm_periodic_work(struct work_struct *work) if (visorchipset_visorbusregwait && !visorbusregistered) goto cleanup; - /* Check events to determine if response to CHIPSET_READY - * should be sent - */ - if (visorchipset_holdchipsetready && - (g_chipset_msg_hdr.id != CONTROLVM_INVALID)) { - if (check_chipset_events() == 1) { - controlvm_respond(&g_chipset_msg_hdr, 0); - clear_chipset_events(); - memset(&g_chipset_msg_hdr, 0, - sizeof(struct controlvm_message_header)); - } - } - while (visorchannel_signalremove(controlvm_channel, CONTROLVM_QUEUE_RESPONSE, &inmsg)) @@ -2093,25 +2033,6 @@ device_resume_response(struct visor_device *dev_info, int response) dev_info->pending_msg_hdr = NULL; } -static ssize_t chipsetready_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - char msgtype[64]; - - if (sscanf(buf, "%63s", msgtype) != 1) - return -EINVAL; - - if (!strcmp(msgtype, "CALLHOMEDISK_MOUNTED")) { - chipset_events[0] = 1; - return count; - } else if (!strcmp(msgtype, "MODULES_LOADED")) { - chipset_events[1] = 1; - return count; - } - return -EINVAL; -} - /* The parahotplug/devicedisabled interface gets called by our support script * when an SR-IOV device has been shut down. The ID is passed to the script * and then passed back when the device has been removed. @@ -2307,8 +2228,6 @@ visorchipset_init(struct acpi_device *acpi_device) if (err < 0) goto error_destroy_payload; - memset(&g_chipset_msg_hdr, 0, sizeof(struct controlvm_message_header)); - /* if booting in a crash kernel */ if (is_kdump_kernel()) INIT_DELAYED_WORK(&periodic_controlvm_work, @@ -2363,8 +2282,6 @@ visorchipset_exit(struct acpi_device *acpi_device) cancel_delayed_work_sync(&periodic_controlvm_work); destroy_controlvm_payload_info(&controlvm_payload_info); - memset(&g_chipset_msg_hdr, 0, sizeof(struct controlvm_message_header)); - visorchannel_destroy(controlvm_channel); visorchipset_file_cleanup(visorchipset_platform_device.dev.devt); @@ -2433,10 +2350,6 @@ MODULE_PARM_DESC(visorchipset_major, module_param_named(visorbusregwait, visorchipset_visorbusregwait, int, S_IRUGO); MODULE_PARM_DESC(visorchipset_visorbusreqwait, "1 to have the module wait for the visor bus to register"); -module_param_named(holdchipsetready, visorchipset_holdchipsetready, - int, S_IRUGO); -MODULE_PARM_DESC(visorchipset_holdchipsetready, - "1 to hold response to CHIPSET_READY"); module_init(init_unisys); module_exit(exit_unisys); -- cgit v0.10.2 From 3a56d700f60cd3cdc2c1429d107f0818555a5b22 Mon Sep 17 00:00:00 2001 From: David Binder Date: Mon, 18 Apr 2016 23:40:09 -0400 Subject: staging: unisys: visorbus: initialize variables Initializes previously uninitialized variables that were flagged as being problematic by Smatch. Signed-off-by: David Binder Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index d7ec463..6d9bbae 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -491,7 +491,7 @@ static ssize_t toolaction_show(struct device *dev, struct device_attribute *attr, char *buf) { - u8 tool_action; + u8 tool_action = 0; visorchannel_read(controlvm_channel, offsetof(struct spar_controlvm_channel_protocol, @@ -559,7 +559,7 @@ static ssize_t boottotool_store(struct device *dev, static ssize_t error_show(struct device *dev, struct device_attribute *attr, char *buf) { - u32 error; + u32 error = 0; visorchannel_read(controlvm_channel, offsetof(struct spar_controlvm_channel_protocol, @@ -590,7 +590,7 @@ static ssize_t error_store(struct device *dev, struct device_attribute *attr, static ssize_t textid_show(struct device *dev, struct device_attribute *attr, char *buf) { - u32 text_id; + u32 text_id = 0; visorchannel_read (controlvm_channel, @@ -622,7 +622,7 @@ static ssize_t textid_store(struct device *dev, struct device_attribute *attr, static ssize_t remaining_steps_show(struct device *dev, struct device_attribute *attr, char *buf) { - u16 remaining_steps; + u16 remaining_steps = 0; visorchannel_read(controlvm_channel, offsetof(struct spar_controlvm_channel_protocol, -- cgit v0.10.2 From d375278d666760e195693b57415ba0a125cadd55 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 10:14:58 -0700 Subject: staging: comedi: das1800: fix possible NULL dereference DMA is optional with this driver. If it was not enabled the devpriv->dma pointer will be NULL. Fix the possible NULL pointer dereference when trying to disable the DMA channels in das1800_ai_cancel() and tidy up the comments to fix the checkpatch.pl issues: WARNING: line over 80 characters It's probably harmless in das1800_ai_setup_dma() because the 'desc' pointer will not be used if DMA is disabled but fix it there also. Fixes: 99dfc3357e98 ("staging: comedi: das1800: remove depends on ISA_DMA_API limitation") Cc: # 4.0+ Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 94078118..3be1096 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -567,14 +567,17 @@ static int das1800_cancel(struct comedi_device *dev, struct comedi_subdevice *s) struct comedi_isadma_desc *desc; int i; - outb(0x0, dev->iobase + DAS1800_STATUS); /* disable conversions */ - outb(0x0, dev->iobase + DAS1800_CONTROL_B); /* disable interrupts and dma */ - outb(0x0, dev->iobase + DAS1800_CONTROL_A); /* disable and clear fifo and stop triggering */ - - for (i = 0; i < 2; i++) { - desc = &dma->desc[i]; - if (desc->chan) - comedi_isadma_disable(desc->chan); + /* disable and stop conversions */ + outb(0x0, dev->iobase + DAS1800_STATUS); + outb(0x0, dev->iobase + DAS1800_CONTROL_B); + outb(0x0, dev->iobase + DAS1800_CONTROL_A); + + if (dma) { + for (i = 0; i < 2; i++) { + desc = &dma->desc[i]; + if (desc->chan) + comedi_isadma_disable(desc->chan); + } } return 0; @@ -934,13 +937,14 @@ static void das1800_ai_setup_dma(struct comedi_device *dev, { struct das1800_private *devpriv = dev->private; struct comedi_isadma *dma = devpriv->dma; - struct comedi_isadma_desc *desc = &dma->desc[0]; + struct comedi_isadma_desc *desc; unsigned int bytes; if ((devpriv->irq_dma_bits & DMA_ENABLED) == 0) return; dma->cur_dma = 0; + desc = &dma->desc[0]; /* determine a dma transfer size to fill buffer in 0.3 sec */ bytes = das1800_ai_transfer_size(dev, s, desc->maxsize, 300000000); -- cgit v0.10.2 From afd055838cfb6f387e8b6d1f884a7ff529524e06 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 10:14:59 -0700 Subject: staging: comedi: das1800: fix analog input sample munging The analog input samples are 2's complement when the inputs are configured for bipolar ranges and offset binary when they are unipolar ranges. For bipolar ranges the sample needs to be munged to the offset binary format that comedi uses. The (*insn_read) does the munging correctly but the async command support incorrectly munges the data for both bipolar and unipolar ranges when reading the remaining samples from the fifo in das1800_handle_fifo_not_empty(). Add a (*munge) function to the analog input subdevice so that the samples are correctly munged when they are added to the async buffer by comedi_buf_write_samples(). Add a flag to the private data and set it in the (*do_cmd) so that the munging is only done for bipolar ranges. Clarify the code by using the core helper functions to check the range and do the munging. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 3be1096..ea54ed8 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -107,7 +107,6 @@ TODO: /* misc. defines */ #define DAS1800_SIZE 16 /* uses 16 io addresses */ #define FIFO_SIZE 1024 /* 1024 sample fifo */ -#define UNIPOLAR 0x4 /* bit that determines whether input range is uni/bipolar */ #define DMA_BUF_SIZE 0x1ff00 /* size in bytes of dma buffers */ /* Registers for the das1800 */ @@ -429,6 +428,7 @@ struct das1800_private { unsigned long iobase2; /* secondary io address used for analog out on 'ao' boards */ unsigned short ao_update_bits; /* remembers the last write to the * 'update' dac */ + bool ai_is_unipolar; }; /* analog out range for 'ao' boards */ @@ -441,29 +441,21 @@ static const struct comedi_lrange range_ao_2 = { }; */ -static inline uint16_t munge_bipolar_sample(const struct comedi_device *dev, - uint16_t sample) -{ - const struct das1800_board *board = dev->board_ptr; - - sample += 1 << (board->resolution - 1); - return sample; -} - -static void munge_data(struct comedi_device *dev, uint16_t *array, - unsigned int num_elements) +static void das1800_ai_munge(struct comedi_device *dev, + struct comedi_subdevice *s, + void *data, unsigned int num_bytes, + unsigned int start_chan_index) { + struct das1800_private *devpriv = dev->private; + unsigned short *array = data; + unsigned int num_samples = comedi_bytes_to_samples(s, num_bytes); unsigned int i; - int unipolar; - /* see if card is using a unipolar or bipolar range so we can munge data correctly */ - unipolar = inb(dev->iobase + DAS1800_CONTROL_C) & UB; + if (devpriv->ai_is_unipolar) + return; - /* convert to unsigned type if we are in a bipolar mode */ - if (!unipolar) { - for (i = 0; i < num_elements; i++) - array[i] = munge_bipolar_sample(dev, array[i]); - } + for (i = 0; i < num_samples; i++) + array[i] = comedi_offset_munge(s, array[i]); } static void das1800_handle_fifo_half_full(struct comedi_device *dev, @@ -473,7 +465,6 @@ static void das1800_handle_fifo_half_full(struct comedi_device *dev, unsigned int nsamples = comedi_nsamples_left(s, FIFO_SIZE / 2); insw(dev->iobase + DAS1800_FIFO, devpriv->fifo_buf, nsamples); - munge_data(dev, devpriv->fifo_buf, nsamples); comedi_buf_write_samples(s, devpriv->fifo_buf, nsamples); } @@ -482,14 +473,9 @@ static void das1800_handle_fifo_not_empty(struct comedi_device *dev, { struct comedi_cmd *cmd = &s->async->cmd; unsigned short dpnt; - int unipolar; - - unipolar = inb(dev->iobase + DAS1800_CONTROL_C) & UB; while (inb(dev->iobase + DAS1800_STATUS) & FNE) { dpnt = inw(dev->iobase + DAS1800_FIFO); - /* convert to unsigned type */ - dpnt = munge_bipolar_sample(dev, dpnt); comedi_buf_write_samples(s, &dpnt, 1); if (cmd->stop_src == TRIG_COUNT && @@ -511,7 +497,6 @@ static void das1800_flush_dma_channel(struct comedi_device *dev, nsamples = comedi_bytes_to_samples(s, nbytes); nsamples = comedi_nsamples_left(s, nsamples); - munge_data(dev, desc->virt_addr, nsamples); comedi_buf_write_samples(s, desc->virt_addr, nsamples); } @@ -707,13 +692,14 @@ static int das1800_ai_check_chanlist(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { - unsigned int unipolar0 = CR_RANGE(cmd->chanlist[0]) & UNIPOLAR; + unsigned int range = CR_RANGE(cmd->chanlist[0]); + bool unipolar0 = comedi_range_is_unipolar(s, range); int i; for (i = 1; i < cmd->chanlist_len; i++) { - unsigned int unipolar = CR_RANGE(cmd->chanlist[i]) & UNIPOLAR; + range = CR_RANGE(cmd->chanlist[i]); - if (unipolar != unipolar0) { + if (unipolar0 != comedi_range_is_unipolar(s, range)) { dev_dbg(dev->class_dev, "unipolar and bipolar ranges cannot be mixed in the chanlist\n"); return -EINVAL; @@ -852,23 +838,24 @@ static int control_a_bits(const struct comedi_cmd *cmd) } /* returns appropriate bits for control register c, depending on command */ -static int control_c_bits(const struct comedi_cmd *cmd) +static int control_c_bits(struct comedi_subdevice *s, + const struct comedi_cmd *cmd) { + unsigned int range = CR_RANGE(cmd->chanlist[0]); + unsigned int aref = CR_AREF(cmd->chanlist[0]); int control_c; - int aref; /* set clock source to internal or external, select analog reference, * select unipolar / bipolar */ - aref = CR_AREF(cmd->chanlist[0]); control_c = UQEN; /* enable upper qram addresses */ if (aref != AREF_DIFF) control_c |= SD; if (aref == AREF_COMMON) control_c |= CMEN; - /* if a unipolar range was selected */ - if (CR_RANGE(cmd->chanlist[0]) & UNIPOLAR) + if (comedi_range_is_unipolar(s, range)) control_c |= UB; + switch (cmd->scan_begin_src) { case TRIG_FOLLOW: /* not in burst mode */ switch (cmd->convert_src) { @@ -994,6 +981,7 @@ static int das1800_ai_do_cmd(struct comedi_device *dev, int control_a, control_c; struct comedi_async *async = s->async; const struct comedi_cmd *cmd = &async->cmd; + unsigned int range0 = CR_RANGE(cmd->chanlist[0]); /* disable dma on CMDF_WAKE_EOS, or CMDF_PRIORITY * (because dma in handler is unsafe at hard real-time priority) */ @@ -1012,9 +1000,11 @@ static int das1800_ai_do_cmd(struct comedi_device *dev, das1800_cancel(dev, s); + devpriv->ai_is_unipolar = comedi_range_is_unipolar(s, range0); + /* determine proper bits for control registers */ control_a = control_a_bits(cmd); - control_c = control_c_bits(cmd); + control_c = control_c_bits(s, cmd); /* setup card and start */ program_chanlist(dev, cmd); @@ -1052,23 +1042,24 @@ static int das1800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { - const struct das1800_board *board = dev->board_ptr; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned int range = CR_RANGE(insn->chanspec); + unsigned int aref = CR_AREF(insn->chanspec); + bool is_unipolar = comedi_range_is_unipolar(s, range); int i, n; - int chan, range, aref, chan_range; + int chan_range; int timeout = 1000; unsigned short dpnt; int conv_flags = 0; unsigned long irq_flags; /* set up analog reference and unipolar / bipolar mode */ - aref = CR_AREF(insn->chanspec); conv_flags |= UQEN; if (aref != AREF_DIFF) conv_flags |= SD; if (aref == AREF_COMMON) conv_flags |= CMEN; - /* if a unipolar range was selected */ - if (CR_RANGE(insn->chanspec) & UNIPOLAR) + if (is_unipolar) conv_flags |= UB; outb(conv_flags, dev->iobase + DAS1800_CONTROL_C); /* software conversion enabled */ @@ -1076,10 +1067,7 @@ static int das1800_ai_rinsn(struct comedi_device *dev, outb(0x0, dev->iobase + DAS1800_CONTROL_A); /* reset fifo */ outb(FFEN, dev->iobase + DAS1800_CONTROL_A); - chan = CR_CHAN(insn->chanspec); - /* mask of unipolar/bipolar bit from range */ - range = CR_RANGE(insn->chanspec) & 0x3; - chan_range = chan | (range << 8); + chan_range = chan | ((range & 0x3) << 8); spin_lock_irqsave(&dev->spinlock, irq_flags); outb(QRAM, dev->iobase + DAS1800_SELECT); /* select QRAM for baseAddress + 0x0 */ outb(0x0, dev->iobase + DAS1800_QRAM_ADDRESS); /* set QRAM address start */ @@ -1100,9 +1088,8 @@ static int das1800_ai_rinsn(struct comedi_device *dev, goto exit; } dpnt = inw(dev->iobase + DAS1800_FIFO); - /* shift data to offset binary for bipolar ranges */ - if ((conv_flags & UB) == 0) - dpnt += 1 << (board->resolution - 1); + if (!is_unipolar) + dpnt = comedi_offset_munge(s, dpnt); data[n] = dpnt; } exit: @@ -1384,6 +1371,7 @@ static int das1800_attach(struct comedi_device *dev, s->do_cmdtest = das1800_ai_do_cmdtest; s->poll = das1800_ai_poll; s->cancel = das1800_cancel; + s->munge = das1800_ai_munge; } /* analog out */ -- cgit v0.10.2 From 30539a115564ab0fda5e9e2af469273bf4b9236a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 10:15:00 -0700 Subject: staging: comedi: das1800: fix das-1801st-da boardinfo The "da" type boards all have 4 analog outputs. Fix the boardinfo for the das-1801st-da. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index ea54ed8..24b33a4 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -324,7 +324,7 @@ static const struct das1800_board das1800_boards[] = { .qram_len = 256, .common = 1, .do_n_chan = 4, - .ao_ability = 0, + .ao_ability = 1, .ao_n_chan = 4, .range_ai = &range_ai_das1801, }, -- cgit v0.10.2 From fd46fe738165a63302b081c4ed48b1c6cfa2bdbb Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 11 Apr 2016 11:12:55 -0700 Subject: staging: comedi: ni_stc.h: Prefer 'unsigned int' to bare use of 'unsigned' Change the types to fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h index 1d5af25..8423dbc 100644 --- a/drivers/staging/comedi/drivers/ni_stc.h +++ b/drivers/staging/comedi/drivers/ni_stc.h @@ -958,7 +958,7 @@ struct ni_board_struct { unsigned int ao_maxdata; int ao_fifo_depth; const struct comedi_lrange *ao_range_table; - unsigned ao_speed; + unsigned int ao_speed; int reg_type; unsigned int has_8255:1; @@ -1007,7 +1007,7 @@ struct ni_private { struct ni_gpct_device *counter_dev; unsigned short an_trig_etc_reg; - unsigned ai_offset[512]; + unsigned int ai_offset[512]; unsigned long serial_interval_ns; unsigned char serial_hw_mode; @@ -1025,8 +1025,8 @@ struct ni_private { unsigned short g0_g1_select_reg; unsigned short cdio_dma_select_reg; - unsigned clock_ns; - unsigned clock_source; + unsigned int clock_ns; + unsigned int clock_source; unsigned short pwm_up_count; unsigned short pwm_down_count; -- cgit v0.10.2 From fb82926f24bb244f902903cd03b345b9b7545737 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 11 Apr 2016 11:12:56 -0700 Subject: staging: comedi: ni_stc.h: Prefer kernel type 'u8' over 'uint8_t' Change the type to fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h index 8423dbc..e848697 100644 --- a/drivers/staging/comedi/drivers/ni_stc.h +++ b/drivers/staging/comedi/drivers/ni_stc.h @@ -1032,7 +1032,7 @@ struct ni_private { unsigned short pwm_down_count; unsigned short ai_fifo_buffer[0x2000]; - uint8_t eeprom_buffer[M_SERIES_EEPROM_SIZE]; + u8 eeprom_buffer[M_SERIES_EEPROM_SIZE]; __be32 serial_number; struct mite_struct *mite; -- cgit v0.10.2 From c0cb87af51ffef22250f4aa760f80c6667b12933 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 11 Apr 2016 11:12:57 -0700 Subject: staging: comedi: ni_stc.h: tidy up block comments Tidy up the block comments to fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h index e848697..896bc02 100644 --- a/drivers/staging/comedi/drivers/ni_stc.h +++ b/drivers/staging/comedi/drivers/ni_stc.h @@ -1,24 +1,23 @@ /* - module/ni_stc.h - Register descriptions for NI DAQ-STC chip - - COMEDI - Linux Control and Measurement Device Interface - Copyright (C) 1998-9 David A. Schleef - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * Register descriptions for NI DAQ-STC chip + * + * COMEDI - Linux Control and Measurement Device Interface + * Copyright (C) 1998-9 David A. Schleef + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ /* - References: - DAQ-STC Technical Reference Manual + * References: + * DAQ-STC Technical Reference Manual */ #ifndef _COMEDI_NI_STC_H -- cgit v0.10.2 From d074aeb888d412424d9951c8f28dab53f2b54729 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 11 Apr 2016 11:23:25 -0700 Subject: staging: comedi: amcc_s5933.h: tidy up comment issues Tidy up the comments to fix the checkpatch.pl isses: WARNING: Block comments use * on subsequent lines WARNING: line over 80 characters Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/amcc_s5933.h b/drivers/staging/comedi/drivers/amcc_s5933.h index d4b8c01..f03e4c8 100644 --- a/drivers/staging/comedi/drivers/amcc_s5933.h +++ b/drivers/staging/comedi/drivers/amcc_s5933.h @@ -1,16 +1,14 @@ /* - comedi/drivers/amcc_s5933.h - - Stuff for AMCC S5933 PCI Controller - - Author: Michal Dobes - - Inspirated from general-purpose AMCC S5933 PCI Matchmaker driver - made by Andrea Cisternino - and as result of espionage from MITE code made by David A. Schleef. - Thanks to AMCC for their on-line documentation and bus master DMA - example. -*/ + * Stuff for AMCC S5933 PCI Controller + * + * Author: Michal Dobes + * + * Inspirated from general-purpose AMCC S5933 PCI Matchmaker driver + * made by Andrea Cisternino + * and as result of espionage from MITE code made by David A. Schleef. + * Thanks to AMCC for their on-line documentation and bus master DMA + * example. + */ #ifndef _AMCC_S5933_H_ #define _AMCC_S5933_H_ @@ -58,7 +56,7 @@ #define INTCSR_INTR_ASSERTED 0x800000 /****************************************************************************/ -/* AMCC - PCI non-volatile ram command register (byte 3 of master control/status register) */ +/* AMCC - PCI non-volatile ram command register (byte 3 of AMCC_OP_REG_MCSR) */ /****************************************************************************/ #define MCSR_NV_LOAD_LOW_ADDR 0x0 #define MCSR_NV_LOAD_HIGH_ADDR 0x20 -- cgit v0.10.2 From a104336d0eb929c589af841185c9aa7b5e03f81c Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 11 Apr 2016 11:32:18 -0700 Subject: staging: comedi: comedi_8254.h: tidy up the register map defines Tidy up the defines to fix the checkpatch.pl issues: CHECK: Prefer using the BIT macro Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/comedi_8254.h b/drivers/staging/comedi/drivers/comedi_8254.h index f4610ea..a12c294 100644 --- a/drivers/staging/comedi/drivers/comedi_8254.h +++ b/drivers/staging/comedi/drivers/comedi_8254.h @@ -53,13 +53,15 @@ struct comedi_subdevice; #define I8254_COUNTER2_REG 0x02 #define I8254_CTRL_REG 0x03 #define I8254_CTRL_SEL_CTR(x) ((x) << 6) -#define I8254_CTRL_READBACK_COUNT ((3 << 6) | (1 << 4)) -#define I8254_CTRL_READBACK_STATUS ((3 << 6) | (1 << 5)) +#define I8254_CTRL_READBACK(x) (I8254_CTRL_SEL_CTR(3) | BIT(x)) +#define I8254_CTRL_READBACK_COUNT I8254_CTRL_READBACK(4) +#define I8254_CTRL_READBACK_STATUS I8254_CTRL_READBACK(5) #define I8254_CTRL_READBACK_SEL_CTR(x) (2 << (x)) -#define I8254_CTRL_LATCH (0 << 4) -#define I8254_CTRL_LSB_ONLY (1 << 4) -#define I8254_CTRL_MSB_ONLY (2 << 4) -#define I8254_CTRL_LSB_MSB (3 << 4) +#define I8254_CTRL_RW(x) (((x) & 0x3) << 4) +#define I8254_CTRL_LATCH I8254_CTRL_RW(0) +#define I8254_CTRL_LSB_ONLY I8254_CTRL_RW(1) +#define I8254_CTRL_MSB_ONLY I8254_CTRL_RW(2) +#define I8254_CTRL_LSB_MSB I8254_CTRL_RW(3) /* counter maps zero to 0x10000 */ #define I8254_MAX_COUNT 0x10000 -- cgit v0.10.2 From a512f530f6046dd84f190c67cdf768865eddd53b Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 11 Apr 2016 11:18:21 -0700 Subject: staging: comedi: plx9080.h: rename CamelCase enum value Rename the enum value to fix the checkpatch.pl issue: CHECK: Avoid CamelCase: Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/plx9080.h b/drivers/staging/comedi/drivers/plx9080.h index f5cd6d5..8d1aee00b1 100644 --- a/drivers/staging/comedi/drivers/plx9080.h +++ b/drivers/staging/comedi/drivers/plx9080.h @@ -88,7 +88,7 @@ enum marb_bits { /* direct slave LLOCKo# enable */ MARB_DS_LLOCK_ENABLE = 0x00400000, MARB_PCI_REQUEST_MODE = 0x00800000, - MARB_PCIv21_MODE = 0x01000000, /* pci specification v2.1 mode */ + MARB_PCIV21_MODE = 0x01000000, /* pci specification v2.1 mode */ MARB_PCI_READ_NO_WRITE_MODE = 0x02000000, MARB_PCI_READ_WITH_WRITE_FLUSH_MODE = 0x04000000, /* gate local bus latency timer with BREQ */ -- cgit v0.10.2 From 5934ff9e7b5d584bf54cc47caab174f11364a45a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:30 -0700 Subject: staging: comedi: das1800: tidy up digital output subdevice init For aesthetics, add some whitespace to the subdevice init and rename the (*insn_bits) function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 24b33a4..e7787ae3 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -1141,10 +1141,10 @@ static int das1800_di_rbits(struct comedi_device *dev, return insn->n; } -static int das1800_do_wbits(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, - unsigned int *data) +static int das1800_do_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) { if (comedi_dio_update_state(s, data)) outb(s->state, dev->iobase + DAS1800_DIGITAL); @@ -1396,14 +1396,14 @@ static int das1800_attach(struct comedi_device *dev, s->range_table = &range_digital; s->insn_bits = das1800_di_rbits; - /* do */ + /* Digital Output subdevice */ s = &dev->subdevices[3]; - s->type = COMEDI_SUBD_DO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = board->do_n_chan; - s->maxdata = 1; - s->range_table = &range_digital; - s->insn_bits = das1800_do_wbits; + s->type = COMEDI_SUBD_DO; + s->subdev_flags = SDF_WRITABLE; + s->n_chan = board->do_n_chan; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = das1800_do_insn_bits; das1800_cancel(dev, dev->read_subdev); -- cgit v0.10.2 From 92a3b54bd20eb15b5b7c6b70ba3423776ebcd2f0 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:31 -0700 Subject: staging: comedi: das1800: tidy up digital input subdevice init For aesthetics, add some whitespace to the subdevice init and rename the (*insn_bits) function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index e7787ae3..93a9d1f 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -1130,10 +1130,10 @@ static int das1800_ao_winsn(struct comedi_device *dev, return 1; } -/* reads from digital input channels */ -static int das1800_di_rbits(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) +static int das1800_di_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) { data[1] = inb(dev->iobase + DAS1800_DIGITAL) & 0xf; data[0] = 0; @@ -1387,14 +1387,14 @@ static int das1800_attach(struct comedi_device *dev, s->type = COMEDI_SUBD_UNUSED; } - /* di */ + /* Digital Input subdevice */ s = &dev->subdevices[2]; - s->type = COMEDI_SUBD_DI; - s->subdev_flags = SDF_READABLE; - s->n_chan = 4; - s->maxdata = 1; - s->range_table = &range_digital; - s->insn_bits = das1800_di_rbits; + s->type = COMEDI_SUBD_DI; + s->subdev_flags = SDF_READABLE; + s->n_chan = 4; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = das1800_di_insn_bits; /* Digital Output subdevice */ s = &dev->subdevices[3]; -- cgit v0.10.2 From f4c96e0120cf8fe75ce2706eb8de8dc1e9fd17ef Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:32 -0700 Subject: staging: comedi: das1800: tidy up analog output subdevice init For aesthetics, add some whitespace to the subdevice init and rename the (*insn_write) function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 93a9d1f..7f7b1d0 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -1098,10 +1098,10 @@ exit: return n; } -/* writes to an analog output channel */ -static int das1800_ao_winsn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) +static int das1800_ao_insn_write(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) { const struct das1800_board *board = dev->board_ptr; struct das1800_private *devpriv = dev->private; @@ -1374,17 +1374,17 @@ static int das1800_attach(struct comedi_device *dev, s->munge = das1800_ai_munge; } - /* analog out */ + /* Analog Output subdevice */ s = &dev->subdevices[1]; if (board->ao_ability == 1) { - s->type = COMEDI_SUBD_AO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = board->ao_n_chan; - s->maxdata = (1 << board->resolution) - 1; - s->range_table = &range_bipolar10; - s->insn_write = das1800_ao_winsn; + s->type = COMEDI_SUBD_AO; + s->subdev_flags = SDF_WRITABLE; + s->n_chan = board->ao_n_chan; + s->maxdata = (1 << board->resolution) - 1; + s->range_table = &range_bipolar10; + s->insn_write = das1800_ao_insn_write; } else { - s->type = COMEDI_SUBD_UNUSED; + s->type = COMEDI_SUBD_UNUSED; } /* Digital Input subdevice */ -- cgit v0.10.2 From 768417450edf0592c032895854a6bf0ce37263c7 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:33 -0700 Subject: staging: comedi: das1800: tidy up analog input subdevice init For aesthetics, add some whitespace to the subdevice init and rename the subdevice support functions. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 7f7b1d0..fc8c0f9 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -545,7 +545,8 @@ static void das1800_handle_dma(struct comedi_device *dev, } } -static int das1800_cancel(struct comedi_device *dev, struct comedi_subdevice *s) +static int das1800_ai_cancel(struct comedi_device *dev, + struct comedi_subdevice *s) { struct das1800_private *devpriv = dev->private; struct comedi_isadma *dma = devpriv->dma; @@ -709,10 +710,9 @@ static int das1800_ai_check_chanlist(struct comedi_device *dev, return 0; } -/* test analog input cmd */ -static int das1800_ai_do_cmdtest(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_cmd *cmd) +static int das1800_ai_cmdtest(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_cmd *cmd) { const struct das1800_board *board = dev->board_ptr; int err = 0; @@ -973,9 +973,8 @@ static void program_chanlist(struct comedi_device *dev, spin_unlock_irqrestore(&dev->spinlock, irq_flags); } -/* analog input do_cmd */ -static int das1800_ai_do_cmd(struct comedi_device *dev, - struct comedi_subdevice *s) +static int das1800_ai_cmd(struct comedi_device *dev, + struct comedi_subdevice *s) { struct das1800_private *devpriv = dev->private; int control_a, control_c; @@ -998,7 +997,7 @@ static int das1800_ai_do_cmd(struct comedi_device *dev, devpriv->irq_dma_bits |= FIMD; } - das1800_cancel(dev, s); + das1800_ai_cancel(dev, s); devpriv->ai_is_unipolar = comedi_range_is_unipolar(s, range0); @@ -1037,10 +1036,10 @@ static int das1800_ai_do_cmd(struct comedi_device *dev, return 0; } -/* read analog input */ -static int das1800_ai_rinsn(struct comedi_device *dev, - struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) +static int das1800_ai_insn_read(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) { unsigned int chan = CR_CHAN(insn->chanspec); unsigned int range = CR_RANGE(insn->chanspec); @@ -1353,25 +1352,25 @@ static int das1800_attach(struct comedi_device *dev, if (ret) return ret; - /* analog input subdevice */ + /* Analog Input subdevice */ s = &dev->subdevices[0]; - s->type = COMEDI_SUBD_AI; - s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_GROUND; + s->type = COMEDI_SUBD_AI; + s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_GROUND; if (board->common) - s->subdev_flags |= SDF_COMMON; - s->n_chan = board->qram_len; - s->maxdata = (1 << board->resolution) - 1; - s->range_table = board->range_ai; - s->insn_read = das1800_ai_rinsn; + s->subdev_flags |= SDF_COMMON; + s->n_chan = board->qram_len; + s->maxdata = (1 << board->resolution) - 1; + s->range_table = board->range_ai; + s->insn_read = das1800_ai_insn_read; if (dev->irq) { dev->read_subdev = s; - s->subdev_flags |= SDF_CMD_READ; - s->len_chanlist = s->n_chan; - s->do_cmd = das1800_ai_do_cmd; - s->do_cmdtest = das1800_ai_do_cmdtest; - s->poll = das1800_ai_poll; - s->cancel = das1800_cancel; - s->munge = das1800_ai_munge; + s->subdev_flags |= SDF_CMD_READ; + s->len_chanlist = s->n_chan; + s->do_cmd = das1800_ai_cmd; + s->do_cmdtest = das1800_ai_cmdtest; + s->poll = das1800_ai_poll; + s->cancel = das1800_ai_cancel; + s->munge = das1800_ai_munge; } /* Analog Output subdevice */ @@ -1405,7 +1404,7 @@ static int das1800_attach(struct comedi_device *dev, s->range_table = &range_digital; s->insn_bits = das1800_do_insn_bits; - das1800_cancel(dev, dev->read_subdev); + das1800_ai_cancel(dev, dev->read_subdev); /* initialize digital out channels */ outb(0, dev->iobase + DAS1800_DIGITAL); -- cgit v0.10.2 From 1e436ce3ffc26230f3e422eed8db557ba7471a07 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:34 -0700 Subject: staging: comedi: das1800: tidy up boardinfo For aesthetics, add some whitespace to the boardinfo array. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index fc8c0f9..aba8021 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -219,203 +219,186 @@ struct das1800_board { */ static const struct das1800_board das1800_boards[] = { { - .name = "das-1701st", - .ai_speed = 6250, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 0, - .ao_n_chan = 0, - .range_ai = &range_ai_das1801, - }, - { - .name = "das-1701st-da", - .ai_speed = 6250, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 1, - .ao_n_chan = 4, - .range_ai = &range_ai_das1801, - }, - { - .name = "das-1702st", - .ai_speed = 6250, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 0, - .ao_n_chan = 0, - .range_ai = &range_ai_das1802, - }, - { - .name = "das-1702st-da", - .ai_speed = 6250, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 1, - .ao_n_chan = 4, - .range_ai = &range_ai_das1802, - }, - { - .name = "das-1702hr", - .ai_speed = 20000, - .resolution = 16, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 0, - .ao_n_chan = 0, - .range_ai = &range_ai_das1802, - }, - { - .name = "das-1702hr-da", - .ai_speed = 20000, - .resolution = 16, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 1, - .ao_n_chan = 2, - .range_ai = &range_ai_das1802, - }, - { - .name = "das-1701ao", - .ai_speed = 6250, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 2, - .ao_n_chan = 2, - .range_ai = &range_ai_das1801, - }, - { - .name = "das-1702ao", - .ai_speed = 6250, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 2, - .ao_n_chan = 2, - .range_ai = &range_ai_das1802, - }, - { - .name = "das-1801st", - .ai_speed = 3000, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 0, - .ao_n_chan = 0, - .range_ai = &range_ai_das1801, - }, - { - .name = "das-1801st-da", - .ai_speed = 3000, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 1, - .ao_n_chan = 4, - .range_ai = &range_ai_das1801, - }, - { - .name = "das-1802st", - .ai_speed = 3000, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 0, - .ao_n_chan = 0, - .range_ai = &range_ai_das1802, - }, - { - .name = "das-1802st-da", - .ai_speed = 3000, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 1, - .ao_n_chan = 4, - .range_ai = &range_ai_das1802, - }, - { - .name = "das-1802hr", - .ai_speed = 10000, - .resolution = 16, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 0, - .ao_n_chan = 0, - .range_ai = &range_ai_das1802, - }, - { - .name = "das-1802hr-da", - .ai_speed = 10000, - .resolution = 16, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 1, - .ao_n_chan = 2, - .range_ai = &range_ai_das1802, - }, - { - .name = "das-1801hc", - .ai_speed = 3000, - .resolution = 12, - .qram_len = 64, - .common = 0, - .do_n_chan = 8, - .ao_ability = 1, - .ao_n_chan = 2, - .range_ai = &range_ai_das1801, - }, - { - .name = "das-1802hc", - .ai_speed = 3000, - .resolution = 12, - .qram_len = 64, - .common = 0, - .do_n_chan = 8, - .ao_ability = 1, - .ao_n_chan = 2, - .range_ai = &range_ai_das1802, - }, - { - .name = "das-1801ao", - .ai_speed = 3000, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 2, - .ao_n_chan = 2, - .range_ai = &range_ai_das1801, - }, - { - .name = "das-1802ao", - .ai_speed = 3000, - .resolution = 12, - .qram_len = 256, - .common = 1, - .do_n_chan = 4, - .ao_ability = 2, - .ao_n_chan = 2, - .range_ai = &range_ai_das1802, - }, + .name = "das-1701st", + .ai_speed = 6250, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 0, + .ao_n_chan = 0, + .range_ai = &range_ai_das1801, + }, { + .name = "das-1701st-da", + .ai_speed = 6250, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 1, + .ao_n_chan = 4, + .range_ai = &range_ai_das1801, + }, { + .name = "das-1702st", + .ai_speed = 6250, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 0, + .ao_n_chan = 0, + .range_ai = &range_ai_das1802, + }, { + .name = "das-1702st-da", + .ai_speed = 6250, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 1, + .ao_n_chan = 4, + .range_ai = &range_ai_das1802, + }, { + .name = "das-1702hr", + .ai_speed = 20000, + .resolution = 16, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 0, + .ao_n_chan = 0, + .range_ai = &range_ai_das1802, + }, { + .name = "das-1702hr-da", + .ai_speed = 20000, + .resolution = 16, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 1, + .ao_n_chan = 2, + .range_ai = &range_ai_das1802, + }, { + .name = "das-1701ao", + .ai_speed = 6250, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 2, + .ao_n_chan = 2, + .range_ai = &range_ai_das1801, + }, { + .name = "das-1702ao", + .ai_speed = 6250, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 2, + .ao_n_chan = 2, + .range_ai = &range_ai_das1802, + }, { + .name = "das-1801st", + .ai_speed = 3000, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 0, + .ao_n_chan = 0, + .range_ai = &range_ai_das1801, + }, { + .name = "das-1801st-da", + .ai_speed = 3000, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 1, + .ao_n_chan = 4, + .range_ai = &range_ai_das1801, + }, { + .name = "das-1802st", + .ai_speed = 3000, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 0, + .ao_n_chan = 0, + .range_ai = &range_ai_das1802, + }, { + .name = "das-1802st-da", + .ai_speed = 3000, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 1, + .ao_n_chan = 4, + .range_ai = &range_ai_das1802, + }, { + .name = "das-1802hr", + .ai_speed = 10000, + .resolution = 16, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 0, + .ao_n_chan = 0, + .range_ai = &range_ai_das1802, + }, { + .name = "das-1802hr-da", + .ai_speed = 10000, + .resolution = 16, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 1, + .ao_n_chan = 2, + .range_ai = &range_ai_das1802, + }, { + .name = "das-1801hc", + .ai_speed = 3000, + .resolution = 12, + .qram_len = 64, + .common = 0, + .do_n_chan = 8, + .ao_ability = 1, + .ao_n_chan = 2, + .range_ai = &range_ai_das1801, + }, { + .name = "das-1802hc", + .ai_speed = 3000, + .resolution = 12, + .qram_len = 64, + .common = 0, + .do_n_chan = 8, + .ao_ability = 1, + .ao_n_chan = 2, + .range_ai = &range_ai_das1802, + }, { + .name = "das-1801ao", + .ai_speed = 3000, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 2, + .ao_n_chan = 2, + .range_ai = &range_ai_das1801, + }, { + .name = "das-1802ao", + .ai_speed = 3000, + .resolution = 12, + .qram_len = 256, + .common = 1, + .do_n_chan = 4, + .ao_ability = 2, + .ao_n_chan = 2, + .range_ai = &range_ai_das1802, + }, }; struct das1800_private { -- cgit v0.10.2 From fa33428fe00743dd11965f6276a994f3088f551d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:35 -0700 Subject: staging: comedi: das1800: tidy up das1800_probe() Refactor das1800_probe() to return an errno instead of the boardinfo pointer. Add the board 'id' to the boardinfo to tidy up this function to clarify the sanity check when the user provided a board name when trying to attach to the driver. Currently when this function probes for a boardinfo based on the board id it returns the wrong boardinfo for the "st-da" and "hr-da" types. This causes the analog input subdevice for those boards to not be available. Fix the probe so that a proper boardinfo is used. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index aba8021..e24d0c9 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -167,13 +167,6 @@ TODO: #define IOBASE2 0x400 /* offset of additional ioports used on 'ao' cards */ -enum { - das1701st, das1701st_da, das1702st, das1702st_da, das1702hr, - das1702hr_da, - das1701ao, das1702ao, das1801st, das1801st_da, das1802st, das1802st_da, - das1802hr, das1802hr_da, das1801hc, das1802hc, das1801ao, das1802ao -}; - /* analog input ranges */ static const struct comedi_lrange range_ai_das1801 = { 8, { @@ -201,8 +194,38 @@ static const struct comedi_lrange range_ai_das1802 = { } }; +enum das1800_boardid { + BOARD_DAS1701ST, + BOARD_DAS1701ST_DA, + BOARD_DAS1702ST, + BOARD_DAS1702ST_DA, + BOARD_DAS1702HR, + BOARD_DAS1702HR_DA, + BOARD_DAS1701AO, + BOARD_DAS1702AO, + BOARD_DAS1801ST, + BOARD_DAS1801ST_DA, + BOARD_DAS1802ST, + BOARD_DAS1802ST_DA, + BOARD_DAS1802HR, + BOARD_DAS1802HR_DA, + BOARD_DAS1801HC, + BOARD_DAS1802HC, + BOARD_DAS1801AO, + BOARD_DAS1802AO +}; + +/* board probe id values (hi byte of the digital input register) */ +#define DAS1800_ID_ST_DA 0x3 +#define DAS1800_ID_HR_DA 0x4 +#define DAS1800_ID_AO 0x5 +#define DAS1800_ID_HR 0x6 +#define DAS1800_ID_ST 0x7 +#define DAS1800_ID_HC 0x8 + struct das1800_board { const char *name; + unsigned char id; int ai_speed; /* max conversion period in nanoseconds */ int resolution; /* bits of ai resolution */ int qram_len; /* length of card's channel / gain queue */ @@ -218,8 +241,9 @@ struct das1800_board { * user manual.) */ static const struct das1800_board das1800_boards[] = { - { + [BOARD_DAS1701ST] = { .name = "das-1701st", + .id = DAS1800_ID_ST, .ai_speed = 6250, .resolution = 12, .qram_len = 256, @@ -228,8 +252,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1801, - }, { + }, + [BOARD_DAS1701ST_DA] = { .name = "das-1701st-da", + .id = DAS1800_ID_ST_DA, .ai_speed = 6250, .resolution = 12, .qram_len = 256, @@ -238,8 +264,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 1, .ao_n_chan = 4, .range_ai = &range_ai_das1801, - }, { + }, + [BOARD_DAS1702ST] = { .name = "das-1702st", + .id = DAS1800_ID_ST, .ai_speed = 6250, .resolution = 12, .qram_len = 256, @@ -248,8 +276,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1802, - }, { + }, + [BOARD_DAS1702ST_DA] = { .name = "das-1702st-da", + .id = DAS1800_ID_ST_DA, .ai_speed = 6250, .resolution = 12, .qram_len = 256, @@ -258,8 +288,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 1, .ao_n_chan = 4, .range_ai = &range_ai_das1802, - }, { + }, + [BOARD_DAS1702HR] = { .name = "das-1702hr", + .id = DAS1800_ID_HR, .ai_speed = 20000, .resolution = 16, .qram_len = 256, @@ -268,8 +300,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1802, - }, { + }, + [BOARD_DAS1702HR_DA] = { .name = "das-1702hr-da", + .id = DAS1800_ID_HR_DA, .ai_speed = 20000, .resolution = 16, .qram_len = 256, @@ -278,8 +312,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 1, .ao_n_chan = 2, .range_ai = &range_ai_das1802, - }, { + }, + [BOARD_DAS1701AO] = { .name = "das-1701ao", + .id = DAS1800_ID_AO, .ai_speed = 6250, .resolution = 12, .qram_len = 256, @@ -288,8 +324,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 2, .ao_n_chan = 2, .range_ai = &range_ai_das1801, - }, { + }, + [BOARD_DAS1702AO] = { .name = "das-1702ao", + .id = DAS1800_ID_AO, .ai_speed = 6250, .resolution = 12, .qram_len = 256, @@ -298,8 +336,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 2, .ao_n_chan = 2, .range_ai = &range_ai_das1802, - }, { + }, + [BOARD_DAS1801ST] = { .name = "das-1801st", + .id = DAS1800_ID_ST, .ai_speed = 3000, .resolution = 12, .qram_len = 256, @@ -308,8 +348,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1801, - }, { + }, + [BOARD_DAS1801ST_DA] = { .name = "das-1801st-da", + .id = DAS1800_ID_ST_DA, .ai_speed = 3000, .resolution = 12, .qram_len = 256, @@ -318,8 +360,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 1, .ao_n_chan = 4, .range_ai = &range_ai_das1801, - }, { + }, + [BOARD_DAS1802ST] = { .name = "das-1802st", + .id = DAS1800_ID_ST, .ai_speed = 3000, .resolution = 12, .qram_len = 256, @@ -328,8 +372,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1802, - }, { + }, + [BOARD_DAS1802ST_DA] = { .name = "das-1802st-da", + .id = DAS1800_ID_ST_DA, .ai_speed = 3000, .resolution = 12, .qram_len = 256, @@ -338,8 +384,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 1, .ao_n_chan = 4, .range_ai = &range_ai_das1802, - }, { + }, + [BOARD_DAS1802HR] = { .name = "das-1802hr", + .id = DAS1800_ID_HR, .ai_speed = 10000, .resolution = 16, .qram_len = 256, @@ -348,8 +396,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1802, - }, { + }, + [BOARD_DAS1802HR_DA] = { .name = "das-1802hr-da", + .id = DAS1800_ID_HR_DA, .ai_speed = 10000, .resolution = 16, .qram_len = 256, @@ -358,8 +408,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 1, .ao_n_chan = 2, .range_ai = &range_ai_das1802, - }, { + }, + [BOARD_DAS1801HC] = { .name = "das-1801hc", + .id = DAS1800_ID_HC, .ai_speed = 3000, .resolution = 12, .qram_len = 64, @@ -368,8 +420,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 1, .ao_n_chan = 2, .range_ai = &range_ai_das1801, - }, { + }, + [BOARD_DAS1802HC] = { .name = "das-1802hc", + .id = DAS1800_ID_HC, .ai_speed = 3000, .resolution = 12, .qram_len = 64, @@ -378,8 +432,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 1, .ao_n_chan = 2, .range_ai = &range_ai_das1802, - }, { + }, + [BOARD_DAS1801AO] = { .name = "das-1801ao", + .id = DAS1800_ID_AO, .ai_speed = 3000, .resolution = 12, .qram_len = 256, @@ -388,8 +444,10 @@ static const struct das1800_board das1800_boards[] = { .ao_ability = 2, .ao_n_chan = 2, .range_ai = &range_ai_das1801, - }, { + }, + [BOARD_DAS1802AO] = { .name = "das-1802ao", + .id = DAS1800_ID_AO, .ai_speed = 3000, .resolution = 12, .qram_len = 256, @@ -1189,68 +1247,68 @@ static void das1800_free_dma(struct comedi_device *dev) comedi_isadma_free(devpriv->dma); } -static const struct das1800_board *das1800_probe(struct comedi_device *dev) +static int das1800_probe(struct comedi_device *dev) { const struct das1800_board *board = dev->board_ptr; - int index = board ? board - das1800_boards : -EINVAL; - int id; + unsigned char id; + + id = (inb(dev->iobase + DAS1800_DIGITAL) >> 4) & 0xf; /* * The dev->board_ptr will be set by comedi_device_attach() if the * board name provided by the user matches a board->name in this * driver. If so, this function sanity checks the id to verify that * the board is correct. - * - * If the dev->board_ptr is not set, the user is trying to attach - * an unspecified board to this driver. In this case the id is used - * to 'probe' for the correct dev->board_ptr. */ - id = (inb(dev->iobase + DAS1800_DIGITAL) >> 4) & 0xf; + if (board) { + if (board->id == id) + return 0; + dev_err(dev->class_dev, + "probed id does not match board id (0x%x != 0x%x)\n", + id, board->id); + return -ENODEV; + } + + /* + * If the dev->board_ptr is not set, the user is trying to attach + * an unspecified board to this driver. In this case the id is used + * to 'probe' for the dev->board_ptr. + */ switch (id) { - case 0x3: - if (index == das1801st_da || index == das1802st_da || - index == das1701st_da || index == das1702st_da) - return board; - index = das1801st; + case DAS1800_ID_ST_DA: + /* das-1701st-da, das-1702st-da, das-1801st-da, das-1802st-da */ + board = &das1800_boards[BOARD_DAS1801ST_DA]; break; - case 0x4: - if (index == das1802hr_da || index == das1702hr_da) - return board; - index = das1802hr; + case DAS1800_ID_HR_DA: + /* das-1702hr-da, das-1802hr-da */ + board = &das1800_boards[BOARD_DAS1802HR_DA]; break; - case 0x5: - if (index == das1801ao || index == das1802ao || - index == das1701ao || index == das1702ao) - return board; - index = das1801ao; + case DAS1800_ID_AO: + /* das-1701ao, das-1702ao, das-1801ao, das-1802ao */ + board = &das1800_boards[BOARD_DAS1801AO]; break; - case 0x6: - if (index == das1802hr || index == das1702hr) - return board; - index = das1802hr; + case DAS1800_ID_HR: + /* das-1702hr, das-1802hr */ + board = &das1800_boards[BOARD_DAS1802HR]; break; - case 0x7: - if (index == das1801st || index == das1802st || - index == das1701st || index == das1702st) - return board; - index = das1801st; + case DAS1800_ID_ST: + /* das-1701st, das-1702st, das-1801st, das-1802st */ + board = &das1800_boards[BOARD_DAS1801ST]; break; - case 0x8: - if (index == das1801hc || index == das1802hc) - return board; - index = das1801hc; + case DAS1800_ID_HC: + /* das-1801hc, das-1802hc */ + board = &das1800_boards[BOARD_DAS1801HC]; break; default: - dev_err(dev->class_dev, - "Board model: probe returned 0x%x (unknown, please report)\n", - id); - return NULL; + dev_err(dev->class_dev, "invalid probe id 0x%x\n", id); + return -ENODEV; } - dev_err(dev->class_dev, - "Board model (probed, not recommended): %s series\n", - das1800_boards[index].name); - - return &das1800_boards[index]; + dev->board_ptr = board; + dev->board_name = board->name; + dev_warn(dev->class_dev, + "probed id 0x%0x: %s series (not recommended)\n", + id, board->name); + return 0; } static int das1800_attach(struct comedi_device *dev, @@ -1270,13 +1328,10 @@ static int das1800_attach(struct comedi_device *dev, if (ret) return ret; - board = das1800_probe(dev); - if (!board) { - dev_err(dev->class_dev, "unable to determine board type\n"); - return -ENODEV; - } - dev->board_ptr = board; - dev->board_name = board->name; + ret = das1800_probe(dev); + if (ret) + return ret; + board = dev->board_ptr; /* if it is an 'ao' board with fancy analog out then we need extra io ports */ if (board->ao_ability == 2) { -- cgit v0.10.2 From 7a9254962bf3b636a3c04da69e94bc00da7d5935 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:36 -0700 Subject: staging: comedi: das1800: remove 'common' boardinfo member The "hc" type boards do not support common mode analog inputs all the other board types do. Remove the unnecessary member from the boardinfo and use the 'id' member to determine if the SDF_COMMON flag should be set for the subdevice. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index e24d0c9..6795f3e 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -229,7 +229,6 @@ struct das1800_board { int ai_speed; /* max conversion period in nanoseconds */ int resolution; /* bits of ai resolution */ int qram_len; /* length of card's channel / gain queue */ - int common; /* supports AREF_COMMON flag */ int do_n_chan; /* number of digital output channels */ int ao_ability; /* 0 == no analog out, 1 == basic analog out, 2 == waveform analog out */ int ao_n_chan; /* number of analog out channels */ @@ -247,7 +246,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, @@ -259,7 +257,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 4, @@ -271,7 +268,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, @@ -283,7 +279,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 4, @@ -295,7 +290,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 20000, .resolution = 16, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, @@ -307,7 +301,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 20000, .resolution = 16, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 2, @@ -319,7 +312,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 2, .ao_n_chan = 2, @@ -331,7 +323,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 2, .ao_n_chan = 2, @@ -343,7 +334,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, @@ -355,7 +345,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 4, @@ -367,7 +356,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, @@ -379,7 +367,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 4, @@ -391,7 +378,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 10000, .resolution = 16, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, @@ -403,7 +389,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 10000, .resolution = 16, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 2, @@ -415,7 +400,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .resolution = 12, .qram_len = 64, - .common = 0, .do_n_chan = 8, .ao_ability = 1, .ao_n_chan = 2, @@ -427,7 +411,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .resolution = 12, .qram_len = 64, - .common = 0, .do_n_chan = 8, .ao_ability = 1, .ao_n_chan = 2, @@ -439,7 +422,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 2, .ao_n_chan = 2, @@ -451,7 +433,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .resolution = 12, .qram_len = 256, - .common = 1, .do_n_chan = 4, .ao_ability = 2, .ao_n_chan = 2, @@ -1394,7 +1375,7 @@ static int das1800_attach(struct comedi_device *dev, s = &dev->subdevices[0]; s->type = COMEDI_SUBD_AI; s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_GROUND; - if (board->common) + if (board->id != DAS1800_ID_HC) s->subdev_flags |= SDF_COMMON; s->n_chan = board->qram_len; s->maxdata = (1 << board->resolution) - 1; -- cgit v0.10.2 From 90f39b9f996a6de8da850a71502ab2bef24cfe9b Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:37 -0700 Subject: staging: comedi: das1800: use comedi_offset_munge() for analog output The analog outputs expect 2's complement data. For aesthetics, use the helper function to handle the munging instead of depending on the boardinfo 'resolution'. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 6795f3e..f870824 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -1132,8 +1132,7 @@ static int das1800_ao_insn_write(struct comedi_device *dev, unsigned short output; unsigned long irq_flags; - /* card expects two's complement data */ - output = data[0] - (1 << (board->resolution - 1)); + output = comedi_offset_munge(s, data[0]); /* if the write is to the 'update' channel, we need to remember its value */ if (chan == update_chan) devpriv->ao_update_bits = output; -- cgit v0.10.2 From dad1e30fde3c4c9c9f8f24afa5a5c3404d19213f Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:38 -0700 Subject: staging: comedi: das1800: remove 'resolution' boardinfo The "hr" type boards have 16-bit analog inputs and outputs. All other board types have 12-bit. Remove the 'resolution' member of the boardinfo and use the 'id' member to determine the subdevices 'maxdata'. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index f870824..43e621b 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -227,7 +227,6 @@ struct das1800_board { const char *name; unsigned char id; int ai_speed; /* max conversion period in nanoseconds */ - int resolution; /* bits of ai resolution */ int qram_len; /* length of card's channel / gain queue */ int do_n_chan; /* number of digital output channels */ int ao_ability; /* 0 == no analog out, 1 == basic analog out, 2 == waveform analog out */ @@ -244,7 +243,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1701st", .id = DAS1800_ID_ST, .ai_speed = 6250, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 0, @@ -255,7 +253,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1701st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 6250, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 1, @@ -266,7 +263,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1702st", .id = DAS1800_ID_ST, .ai_speed = 6250, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 0, @@ -277,7 +273,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1702st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 6250, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 1, @@ -288,7 +283,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1702hr", .id = DAS1800_ID_HR, .ai_speed = 20000, - .resolution = 16, .qram_len = 256, .do_n_chan = 4, .ao_ability = 0, @@ -299,7 +293,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1702hr-da", .id = DAS1800_ID_HR_DA, .ai_speed = 20000, - .resolution = 16, .qram_len = 256, .do_n_chan = 4, .ao_ability = 1, @@ -310,7 +303,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1701ao", .id = DAS1800_ID_AO, .ai_speed = 6250, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 2, @@ -321,7 +313,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1702ao", .id = DAS1800_ID_AO, .ai_speed = 6250, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 2, @@ -332,7 +323,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1801st", .id = DAS1800_ID_ST, .ai_speed = 3000, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 0, @@ -343,7 +333,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1801st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 3000, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 1, @@ -354,7 +343,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1802st", .id = DAS1800_ID_ST, .ai_speed = 3000, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 0, @@ -365,7 +353,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1802st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 3000, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 1, @@ -376,7 +363,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1802hr", .id = DAS1800_ID_HR, .ai_speed = 10000, - .resolution = 16, .qram_len = 256, .do_n_chan = 4, .ao_ability = 0, @@ -387,7 +373,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1802hr-da", .id = DAS1800_ID_HR_DA, .ai_speed = 10000, - .resolution = 16, .qram_len = 256, .do_n_chan = 4, .ao_ability = 1, @@ -398,7 +383,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1801hc", .id = DAS1800_ID_HC, .ai_speed = 3000, - .resolution = 12, .qram_len = 64, .do_n_chan = 8, .ao_ability = 1, @@ -409,7 +393,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1802hc", .id = DAS1800_ID_HC, .ai_speed = 3000, - .resolution = 12, .qram_len = 64, .do_n_chan = 8, .ao_ability = 1, @@ -420,7 +403,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1801ao", .id = DAS1800_ID_AO, .ai_speed = 3000, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 2, @@ -431,7 +413,6 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1802ao", .id = DAS1800_ID_AO, .ai_speed = 3000, - .resolution = 12, .qram_len = 256, .do_n_chan = 4, .ao_ability = 2, @@ -1298,6 +1279,7 @@ static int das1800_attach(struct comedi_device *dev, struct das1800_private *devpriv; struct comedi_subdevice *s; unsigned int irq = it->options[1]; + bool is_16bit; int ret; devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); @@ -1313,6 +1295,8 @@ static int das1800_attach(struct comedi_device *dev, return ret; board = dev->board_ptr; + is_16bit = board->id == DAS1800_ID_HR || board->id == DAS1800_ID_HR_DA; + /* if it is an 'ao' board with fancy analog out then we need extra io ports */ if (board->ao_ability == 2) { unsigned long iobase2 = dev->iobase + IOBASE2; @@ -1377,7 +1361,7 @@ static int das1800_attach(struct comedi_device *dev, if (board->id != DAS1800_ID_HC) s->subdev_flags |= SDF_COMMON; s->n_chan = board->qram_len; - s->maxdata = (1 << board->resolution) - 1; + s->maxdata = is_16bit ? 0xffff : 0x0fff; s->range_table = board->range_ai; s->insn_read = das1800_ai_insn_read; if (dev->irq) { @@ -1397,7 +1381,7 @@ static int das1800_attach(struct comedi_device *dev, s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE; s->n_chan = board->ao_n_chan; - s->maxdata = (1 << board->resolution) - 1; + s->maxdata = is_16bit ? 0xffff : 0x0fff; s->range_table = &range_bipolar10; s->insn_write = das1800_ao_insn_write; } else { -- cgit v0.10.2 From bc524200ed26d173c78be46e4753c6f7754dc84e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:39 -0700 Subject: staging: comedi: das1800: remove 'do_n_chan' boardinfo The "hc" type boards have 8 digtial outputs. All other board types have 4. Remove the 'do_n_chan' member of the boardinfo and use the 'id' member to determine the subdevice 'n_chan'. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 43e621b..6641f2e 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -228,7 +228,6 @@ struct das1800_board { unsigned char id; int ai_speed; /* max conversion period in nanoseconds */ int qram_len; /* length of card's channel / gain queue */ - int do_n_chan; /* number of digital output channels */ int ao_ability; /* 0 == no analog out, 1 == basic analog out, 2 == waveform analog out */ int ao_n_chan; /* number of analog out channels */ const struct comedi_lrange *range_ai; /* available input ranges */ @@ -244,7 +243,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST, .ai_speed = 6250, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1801, @@ -254,7 +252,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST_DA, .ai_speed = 6250, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 4, .range_ai = &range_ai_das1801, @@ -264,7 +261,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST, .ai_speed = 6250, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1802, @@ -274,7 +270,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST_DA, .ai_speed = 6250, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 4, .range_ai = &range_ai_das1802, @@ -284,7 +279,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HR, .ai_speed = 20000, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1802, @@ -294,7 +288,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HR_DA, .ai_speed = 20000, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 2, .range_ai = &range_ai_das1802, @@ -304,7 +297,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_AO, .ai_speed = 6250, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 2, .ao_n_chan = 2, .range_ai = &range_ai_das1801, @@ -314,7 +306,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_AO, .ai_speed = 6250, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 2, .ao_n_chan = 2, .range_ai = &range_ai_das1802, @@ -324,7 +315,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST, .ai_speed = 3000, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1801, @@ -334,7 +324,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST_DA, .ai_speed = 3000, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 4, .range_ai = &range_ai_das1801, @@ -344,7 +333,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST, .ai_speed = 3000, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1802, @@ -354,7 +342,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST_DA, .ai_speed = 3000, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 4, .range_ai = &range_ai_das1802, @@ -364,7 +351,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HR, .ai_speed = 10000, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 0, .ao_n_chan = 0, .range_ai = &range_ai_das1802, @@ -374,7 +360,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HR_DA, .ai_speed = 10000, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 1, .ao_n_chan = 2, .range_ai = &range_ai_das1802, @@ -384,7 +369,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HC, .ai_speed = 3000, .qram_len = 64, - .do_n_chan = 8, .ao_ability = 1, .ao_n_chan = 2, .range_ai = &range_ai_das1801, @@ -394,7 +378,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HC, .ai_speed = 3000, .qram_len = 64, - .do_n_chan = 8, .ao_ability = 1, .ao_n_chan = 2, .range_ai = &range_ai_das1802, @@ -404,7 +387,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_AO, .ai_speed = 3000, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 2, .ao_n_chan = 2, .range_ai = &range_ai_das1801, @@ -414,7 +396,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_AO, .ai_speed = 3000, .qram_len = 256, - .do_n_chan = 4, .ao_ability = 2, .ao_n_chan = 2, .range_ai = &range_ai_das1802, @@ -1401,7 +1382,7 @@ static int das1800_attach(struct comedi_device *dev, s = &dev->subdevices[3]; s->type = COMEDI_SUBD_DO; s->subdev_flags = SDF_WRITABLE; - s->n_chan = board->do_n_chan; + s->n_chan = (board->id == DAS1800_ID_HC) ? 8 : 4; s->maxdata = 1; s->range_table = &range_digital; s->insn_bits = das1800_do_insn_bits; -- cgit v0.10.2 From 605b670e9b0ca1036dee636701af0dd220927e67 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:40 -0700 Subject: staging: comedi: das1800: initialize all analog outputs The current code used to initialize the analog outputs only sets the last channel. The other channels will be reloaded with the last value that was written to them. Move the code into the subdevice init and properly initialize all the channels to 0V. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 6641f2e..45d7201 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -1262,6 +1262,7 @@ static int das1800_attach(struct comedi_device *dev, unsigned int irq = it->options[1]; bool is_16bit; int ret; + int i; devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); if (!devpriv) @@ -1365,6 +1366,12 @@ static int das1800_attach(struct comedi_device *dev, s->maxdata = is_16bit ? 0xffff : 0x0fff; s->range_table = &range_bipolar10; s->insn_write = das1800_ao_insn_write; + + /* initialize all channels to 0V */ + for (i = 0; i < s->n_chan; i++) { + outb(DAC(i), dev->iobase + DAS1800_SELECT); + outw(0, dev->iobase + DAS1800_DAC); + } } else { s->type = COMEDI_SUBD_UNUSED; } @@ -1392,14 +1399,6 @@ static int das1800_attach(struct comedi_device *dev, /* initialize digital out channels */ outb(0, dev->iobase + DAS1800_DIGITAL); - /* initialize analog out channels */ - if (board->ao_ability == 1) { - /* select 'update' dac channel for baseAddress + 0x0 */ - outb(DAC(board->ao_n_chan - 1), - dev->iobase + DAS1800_SELECT); - outw(devpriv->ao_update_bits, dev->iobase + DAS1800_DAC); - } - return 0; }; -- cgit v0.10.2 From 4c6f738e0f15a8d7a264f49f3d4f42a458edf773 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:41 -0700 Subject: staging: comedi: das1800: tidy up das1800_ao_insn_write() The (*insn_write) functions are supposed to write insn->n values to the specified channel. Tidy up this function and make it work like the core expects. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 45d7201..962a414 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -1086,30 +1086,36 @@ static int das1800_ao_insn_write(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { - const struct das1800_board *board = dev->board_ptr; struct das1800_private *devpriv = dev->private; - int chan = CR_CHAN(insn->chanspec); -/* int range = CR_RANGE(insn->chanspec); */ - int update_chan = board->ao_n_chan - 1; - unsigned short output; - unsigned long irq_flags; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned int update_chan = s->n_chan - 1; + unsigned long flags; + int i; - output = comedi_offset_munge(s, data[0]); - /* if the write is to the 'update' channel, we need to remember its value */ - if (chan == update_chan) - devpriv->ao_update_bits = output; - /* write to channel */ - spin_lock_irqsave(&dev->spinlock, irq_flags); - outb(DAC(chan), dev->iobase + DAS1800_SELECT); /* select dac channel for baseAddress + 0x0 */ - outw(output, dev->iobase + DAS1800_DAC); - /* now we need to write to 'update' channel to update all dac channels */ - if (chan != update_chan) { - outb(DAC(update_chan), dev->iobase + DAS1800_SELECT); /* select 'update' channel for baseAddress + 0x0 */ - outw(devpriv->ao_update_bits, dev->iobase + DAS1800_DAC); + /* protects the indirect addressing selected by DAS1800_SELECT */ + spin_lock_irqsave(&dev->spinlock, flags); + + for (i = 0; i < insn->n; i++) { + unsigned int val = data[i]; + + val = comedi_offset_munge(s, val); + if (chan == update_chan) + devpriv->ao_update_bits = val; + + /* load this channel (and update if it's the last channel) */ + outb(DAC(chan), dev->iobase + DAS1800_SELECT); + outw(val, dev->iobase + DAS1800_DAC); + + /* update all channels */ + if (chan != update_chan) { + outb(DAC(update_chan), dev->iobase + DAS1800_SELECT); + outw(devpriv->ao_update_bits, + dev->iobase + DAS1800_DAC); + } } - spin_unlock_irqrestore(&dev->spinlock, irq_flags); + spin_unlock_irqrestore(&dev->spinlock, flags); - return 1; + return insn->n; } static int das1800_di_insn_bits(struct comedi_device *dev, -- cgit v0.10.2 From 1322f148983dfc91f2f011043bcdbc6de4a9df33 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:42 -0700 Subject: staging: comedi: das1800: remove 'ao_n_chan' boardinfo The "st-da" board types have 4 analog output channels. All other board types, with analog outputs, only have 2 channels. Remove the 'ao_n_chan' member of the boardinfo and use the 'id' member to determine the subdevice 'n_chan'. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 962a414..1a9565e 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -229,7 +229,6 @@ struct das1800_board { int ai_speed; /* max conversion period in nanoseconds */ int qram_len; /* length of card's channel / gain queue */ int ao_ability; /* 0 == no analog out, 1 == basic analog out, 2 == waveform analog out */ - int ao_n_chan; /* number of analog out channels */ const struct comedi_lrange *range_ai; /* available input ranges */ }; @@ -244,7 +243,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .qram_len = 256, .ao_ability = 0, - .ao_n_chan = 0, .range_ai = &range_ai_das1801, }, [BOARD_DAS1701ST_DA] = { @@ -253,7 +251,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .qram_len = 256, .ao_ability = 1, - .ao_n_chan = 4, .range_ai = &range_ai_das1801, }, [BOARD_DAS1702ST] = { @@ -262,7 +259,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .qram_len = 256, .ao_ability = 0, - .ao_n_chan = 0, .range_ai = &range_ai_das1802, }, [BOARD_DAS1702ST_DA] = { @@ -271,7 +267,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .qram_len = 256, .ao_ability = 1, - .ao_n_chan = 4, .range_ai = &range_ai_das1802, }, [BOARD_DAS1702HR] = { @@ -280,7 +275,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 20000, .qram_len = 256, .ao_ability = 0, - .ao_n_chan = 0, .range_ai = &range_ai_das1802, }, [BOARD_DAS1702HR_DA] = { @@ -289,7 +283,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 20000, .qram_len = 256, .ao_ability = 1, - .ao_n_chan = 2, .range_ai = &range_ai_das1802, }, [BOARD_DAS1701AO] = { @@ -298,7 +291,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .qram_len = 256, .ao_ability = 2, - .ao_n_chan = 2, .range_ai = &range_ai_das1801, }, [BOARD_DAS1702AO] = { @@ -307,7 +299,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 6250, .qram_len = 256, .ao_ability = 2, - .ao_n_chan = 2, .range_ai = &range_ai_das1802, }, [BOARD_DAS1801ST] = { @@ -316,7 +307,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .qram_len = 256, .ao_ability = 0, - .ao_n_chan = 0, .range_ai = &range_ai_das1801, }, [BOARD_DAS1801ST_DA] = { @@ -325,7 +315,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .qram_len = 256, .ao_ability = 1, - .ao_n_chan = 4, .range_ai = &range_ai_das1801, }, [BOARD_DAS1802ST] = { @@ -334,7 +323,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .qram_len = 256, .ao_ability = 0, - .ao_n_chan = 0, .range_ai = &range_ai_das1802, }, [BOARD_DAS1802ST_DA] = { @@ -343,7 +331,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .qram_len = 256, .ao_ability = 1, - .ao_n_chan = 4, .range_ai = &range_ai_das1802, }, [BOARD_DAS1802HR] = { @@ -352,7 +339,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 10000, .qram_len = 256, .ao_ability = 0, - .ao_n_chan = 0, .range_ai = &range_ai_das1802, }, [BOARD_DAS1802HR_DA] = { @@ -361,7 +347,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 10000, .qram_len = 256, .ao_ability = 1, - .ao_n_chan = 2, .range_ai = &range_ai_das1802, }, [BOARD_DAS1801HC] = { @@ -370,7 +355,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .qram_len = 64, .ao_ability = 1, - .ao_n_chan = 2, .range_ai = &range_ai_das1801, }, [BOARD_DAS1802HC] = { @@ -379,7 +363,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .qram_len = 64, .ao_ability = 1, - .ao_n_chan = 2, .range_ai = &range_ai_das1802, }, [BOARD_DAS1801AO] = { @@ -388,7 +371,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .qram_len = 256, .ao_ability = 2, - .ao_n_chan = 2, .range_ai = &range_ai_das1801, }, [BOARD_DAS1802AO] = { @@ -397,7 +379,6 @@ static const struct das1800_board das1800_boards[] = { .ai_speed = 3000, .qram_len = 256, .ao_ability = 2, - .ao_n_chan = 2, .range_ai = &range_ai_das1802, }, }; @@ -1368,7 +1349,7 @@ static int das1800_attach(struct comedi_device *dev, if (board->ao_ability == 1) { s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE; - s->n_chan = board->ao_n_chan; + s->n_chan = (board->id == DAS1800_ID_ST_DA) ? 4 : 2; s->maxdata = is_16bit ? 0xffff : 0x0fff; s->range_table = &range_bipolar10; s->insn_write = das1800_ao_insn_write; -- cgit v0.10.2 From 8114b5ecb8dc9d2b79b9cba12c4edb737da80575 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:43 -0700 Subject: staging: comedi: das1800: remove 'ao_ability' boardinfo The "da" and "hc" type boards have normal analog outputs. The "ao" type boards have move advanced analog outputs with waveform generation capability. Remove the 'ao_ability' member of the boardinfo and use the 'id' member to determine if the subdevice should be initialized. The "ao" waveform analog outputs are not currently supported. For aesthetics, add an else if for the initialization of the subdevice for these boards. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 1a9565e..5d40811 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -228,7 +228,6 @@ struct das1800_board { unsigned char id; int ai_speed; /* max conversion period in nanoseconds */ int qram_len; /* length of card's channel / gain queue */ - int ao_ability; /* 0 == no analog out, 1 == basic analog out, 2 == waveform analog out */ const struct comedi_lrange *range_ai; /* available input ranges */ }; @@ -242,7 +241,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST, .ai_speed = 6250, .qram_len = 256, - .ao_ability = 0, .range_ai = &range_ai_das1801, }, [BOARD_DAS1701ST_DA] = { @@ -250,7 +248,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST_DA, .ai_speed = 6250, .qram_len = 256, - .ao_ability = 1, .range_ai = &range_ai_das1801, }, [BOARD_DAS1702ST] = { @@ -258,7 +255,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST, .ai_speed = 6250, .qram_len = 256, - .ao_ability = 0, .range_ai = &range_ai_das1802, }, [BOARD_DAS1702ST_DA] = { @@ -266,7 +262,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST_DA, .ai_speed = 6250, .qram_len = 256, - .ao_ability = 1, .range_ai = &range_ai_das1802, }, [BOARD_DAS1702HR] = { @@ -274,7 +269,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HR, .ai_speed = 20000, .qram_len = 256, - .ao_ability = 0, .range_ai = &range_ai_das1802, }, [BOARD_DAS1702HR_DA] = { @@ -282,7 +276,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HR_DA, .ai_speed = 20000, .qram_len = 256, - .ao_ability = 1, .range_ai = &range_ai_das1802, }, [BOARD_DAS1701AO] = { @@ -290,7 +283,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_AO, .ai_speed = 6250, .qram_len = 256, - .ao_ability = 2, .range_ai = &range_ai_das1801, }, [BOARD_DAS1702AO] = { @@ -298,7 +290,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_AO, .ai_speed = 6250, .qram_len = 256, - .ao_ability = 2, .range_ai = &range_ai_das1802, }, [BOARD_DAS1801ST] = { @@ -306,7 +297,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST, .ai_speed = 3000, .qram_len = 256, - .ao_ability = 0, .range_ai = &range_ai_das1801, }, [BOARD_DAS1801ST_DA] = { @@ -314,7 +304,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST_DA, .ai_speed = 3000, .qram_len = 256, - .ao_ability = 1, .range_ai = &range_ai_das1801, }, [BOARD_DAS1802ST] = { @@ -322,7 +311,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST, .ai_speed = 3000, .qram_len = 256, - .ao_ability = 0, .range_ai = &range_ai_das1802, }, [BOARD_DAS1802ST_DA] = { @@ -330,7 +318,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST_DA, .ai_speed = 3000, .qram_len = 256, - .ao_ability = 1, .range_ai = &range_ai_das1802, }, [BOARD_DAS1802HR] = { @@ -338,7 +325,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HR, .ai_speed = 10000, .qram_len = 256, - .ao_ability = 0, .range_ai = &range_ai_das1802, }, [BOARD_DAS1802HR_DA] = { @@ -346,7 +332,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HR_DA, .ai_speed = 10000, .qram_len = 256, - .ao_ability = 1, .range_ai = &range_ai_das1802, }, [BOARD_DAS1801HC] = { @@ -354,7 +339,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HC, .ai_speed = 3000, .qram_len = 64, - .ao_ability = 1, .range_ai = &range_ai_das1801, }, [BOARD_DAS1802HC] = { @@ -362,7 +346,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_HC, .ai_speed = 3000, .qram_len = 64, - .ao_ability = 1, .range_ai = &range_ai_das1802, }, [BOARD_DAS1801AO] = { @@ -370,7 +353,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_AO, .ai_speed = 3000, .qram_len = 256, - .ao_ability = 2, .range_ai = &range_ai_das1801, }, [BOARD_DAS1802AO] = { @@ -378,7 +360,6 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_AO, .ai_speed = 3000, .qram_len = 256, - .ao_ability = 2, .range_ai = &range_ai_das1802, }, }; @@ -1266,8 +1247,8 @@ static int das1800_attach(struct comedi_device *dev, is_16bit = board->id == DAS1800_ID_HR || board->id == DAS1800_ID_HR_DA; - /* if it is an 'ao' board with fancy analog out then we need extra io ports */ - if (board->ao_ability == 2) { + /* waveform 'ao' boards have additional io ports */ + if (board->id == DAS1800_ID_AO) { unsigned long iobase2 = dev->iobase + IOBASE2; ret = __comedi_request_region(dev, iobase2, DAS1800_SIZE); @@ -1346,7 +1327,7 @@ static int das1800_attach(struct comedi_device *dev, /* Analog Output subdevice */ s = &dev->subdevices[1]; - if (board->ao_ability == 1) { + if (board->id == DAS1800_ID_ST_DA || board->id == DAS1800_ID_HR_DA) { s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE; s->n_chan = (board->id == DAS1800_ID_ST_DA) ? 4 : 2; @@ -1359,6 +1340,12 @@ static int das1800_attach(struct comedi_device *dev, outb(DAC(i), dev->iobase + DAS1800_SELECT); outw(0, dev->iobase + DAS1800_DAC); } + } else if (board->id == DAS1800_ID_AO) { + /* + * 'ao' boards have waveform analog outputs that are not + * currently supported. + */ + s->type = COMEDI_SUBD_UNUSED; } else { s->type = COMEDI_SUBD_UNUSED; } -- cgit v0.10.2 From 5068827a7818cb54763975a34a0e59f1d1827ad8 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:44 -0700 Subject: staging: comedi: das1800: refactor 'range_ai' boardinfo The boards supported by this driver have analog inputs with gains of 1, 10, 50, and 250 ("01" type) or 1, 2, 4, and 8 ("02" type). Unfortunately, the "01"/"02" type cannot be determined from the boards id or by probing. Replace the 'range_ai' member of the boardinfo with a bit-field flag, 'is_01_series' and only set it for the "01" type boards. Remove the unnecessary initialization for the "02" type boards. For aesthetics, rename the comedi_lrange arrays and document the gain. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 5d40811..3280763 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -167,30 +167,29 @@ TODO: #define IOBASE2 0x400 /* offset of additional ioports used on 'ao' cards */ -/* analog input ranges */ -static const struct comedi_lrange range_ai_das1801 = { +static const struct comedi_lrange das1801_ai_range = { 8, { - BIP_RANGE(5), - BIP_RANGE(1), - BIP_RANGE(0.1), - BIP_RANGE(0.02), - UNI_RANGE(5), - UNI_RANGE(1), - UNI_RANGE(0.1), - UNI_RANGE(0.02) + BIP_RANGE(5), /* bipolar gain = 1 */ + BIP_RANGE(1), /* bipolar gain = 10 */ + BIP_RANGE(0.1), /* bipolar gain = 50 */ + BIP_RANGE(0.02), /* bipolar gain = 250 */ + UNI_RANGE(5), /* unipolar gain = 1 */ + UNI_RANGE(1), /* unipolar gain = 10 */ + UNI_RANGE(0.1), /* unipolar gain = 50 */ + UNI_RANGE(0.02) /* unipolar gain = 250 */ } }; -static const struct comedi_lrange range_ai_das1802 = { +static const struct comedi_lrange das1802_ai_range = { 8, { - BIP_RANGE(10), - BIP_RANGE(5), - BIP_RANGE(2.5), - BIP_RANGE(1.25), - UNI_RANGE(10), - UNI_RANGE(5), - UNI_RANGE(2.5), - UNI_RANGE(1.25) + BIP_RANGE(10), /* bipolar gain = 1 */ + BIP_RANGE(5), /* bipolar gain = 2 */ + BIP_RANGE(2.5), /* bipolar gain = 4 */ + BIP_RANGE(1.25), /* bipolar gain = 8 */ + UNI_RANGE(10), /* unipolar gain = 1 */ + UNI_RANGE(5), /* unipolar gain = 2 */ + UNI_RANGE(2.5), /* unipolar gain = 4 */ + UNI_RANGE(1.25) /* unipolar gain = 8 */ } }; @@ -228,7 +227,7 @@ struct das1800_board { unsigned char id; int ai_speed; /* max conversion period in nanoseconds */ int qram_len; /* length of card's channel / gain queue */ - const struct comedi_lrange *range_ai; /* available input ranges */ + unsigned int is_01_series:1; }; /* Warning: the maximum conversion speeds listed below are @@ -241,126 +240,115 @@ static const struct das1800_board das1800_boards[] = { .id = DAS1800_ID_ST, .ai_speed = 6250, .qram_len = 256, - .range_ai = &range_ai_das1801, + .is_01_series = 1, }, [BOARD_DAS1701ST_DA] = { .name = "das-1701st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 6250, .qram_len = 256, - .range_ai = &range_ai_das1801, + .is_01_series = 1, }, [BOARD_DAS1702ST] = { .name = "das-1702st", .id = DAS1800_ID_ST, .ai_speed = 6250, .qram_len = 256, - .range_ai = &range_ai_das1802, }, [BOARD_DAS1702ST_DA] = { .name = "das-1702st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 6250, .qram_len = 256, - .range_ai = &range_ai_das1802, }, [BOARD_DAS1702HR] = { .name = "das-1702hr", .id = DAS1800_ID_HR, .ai_speed = 20000, .qram_len = 256, - .range_ai = &range_ai_das1802, }, [BOARD_DAS1702HR_DA] = { .name = "das-1702hr-da", .id = DAS1800_ID_HR_DA, .ai_speed = 20000, .qram_len = 256, - .range_ai = &range_ai_das1802, }, [BOARD_DAS1701AO] = { .name = "das-1701ao", .id = DAS1800_ID_AO, .ai_speed = 6250, .qram_len = 256, - .range_ai = &range_ai_das1801, + .is_01_series = 1, }, [BOARD_DAS1702AO] = { .name = "das-1702ao", .id = DAS1800_ID_AO, .ai_speed = 6250, .qram_len = 256, - .range_ai = &range_ai_das1802, }, [BOARD_DAS1801ST] = { .name = "das-1801st", .id = DAS1800_ID_ST, .ai_speed = 3000, .qram_len = 256, - .range_ai = &range_ai_das1801, + .is_01_series = 1, }, [BOARD_DAS1801ST_DA] = { .name = "das-1801st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 3000, .qram_len = 256, - .range_ai = &range_ai_das1801, + .is_01_series = 1, }, [BOARD_DAS1802ST] = { .name = "das-1802st", .id = DAS1800_ID_ST, .ai_speed = 3000, .qram_len = 256, - .range_ai = &range_ai_das1802, }, [BOARD_DAS1802ST_DA] = { .name = "das-1802st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 3000, .qram_len = 256, - .range_ai = &range_ai_das1802, }, [BOARD_DAS1802HR] = { .name = "das-1802hr", .id = DAS1800_ID_HR, .ai_speed = 10000, .qram_len = 256, - .range_ai = &range_ai_das1802, }, [BOARD_DAS1802HR_DA] = { .name = "das-1802hr-da", .id = DAS1800_ID_HR_DA, .ai_speed = 10000, .qram_len = 256, - .range_ai = &range_ai_das1802, }, [BOARD_DAS1801HC] = { .name = "das-1801hc", .id = DAS1800_ID_HC, .ai_speed = 3000, .qram_len = 64, - .range_ai = &range_ai_das1801, + .is_01_series = 1, }, [BOARD_DAS1802HC] = { .name = "das-1802hc", .id = DAS1800_ID_HC, .ai_speed = 3000, .qram_len = 64, - .range_ai = &range_ai_das1802, }, [BOARD_DAS1801AO] = { .name = "das-1801ao", .id = DAS1800_ID_AO, .ai_speed = 3000, .qram_len = 256, - .range_ai = &range_ai_das1801, + .is_01_series = 1, }, [BOARD_DAS1802AO] = { .name = "das-1802ao", .id = DAS1800_ID_AO, .ai_speed = 3000, .qram_len = 256, - .range_ai = &range_ai_das1802, }, }; @@ -1312,7 +1300,8 @@ static int das1800_attach(struct comedi_device *dev, s->subdev_flags |= SDF_COMMON; s->n_chan = board->qram_len; s->maxdata = is_16bit ? 0xffff : 0x0fff; - s->range_table = board->range_ai; + s->range_table = board->is_01_series ? &das1801_ai_range + : &das1802_ai_range; s->insn_read = das1800_ai_insn_read; if (dev->irq) { dev->read_subdev = s; -- cgit v0.10.2 From ac8ebf8a8ff5b9e80b35b380ddcafd54bf6b5c8e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:45 -0700 Subject: staging: comedi: das1800: remove 'qram_len' boardinfo The "hc" type boards have 64 analog input channels with a 64 entry queue. All the others have 16 channels and a 256 entry queue. EXP-1800 expansion boards can be used to increase the number of analog inputs on the 16 channel boards, 16 channels per EXP-1800, for a total of 256 channels. Remove the 'qram_len' member of the boardinfo and use the 'id' member to determine the number of channels. Add a comment about the number of channels and the unclear mapping of the channels when EXP-1800 boards are used. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 3280763..d3aca97 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -226,7 +226,6 @@ struct das1800_board { const char *name; unsigned char id; int ai_speed; /* max conversion period in nanoseconds */ - int qram_len; /* length of card's channel / gain queue */ unsigned int is_01_series:1; }; @@ -239,116 +238,98 @@ static const struct das1800_board das1800_boards[] = { .name = "das-1701st", .id = DAS1800_ID_ST, .ai_speed = 6250, - .qram_len = 256, .is_01_series = 1, }, [BOARD_DAS1701ST_DA] = { .name = "das-1701st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 6250, - .qram_len = 256, .is_01_series = 1, }, [BOARD_DAS1702ST] = { .name = "das-1702st", .id = DAS1800_ID_ST, .ai_speed = 6250, - .qram_len = 256, }, [BOARD_DAS1702ST_DA] = { .name = "das-1702st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 6250, - .qram_len = 256, }, [BOARD_DAS1702HR] = { .name = "das-1702hr", .id = DAS1800_ID_HR, .ai_speed = 20000, - .qram_len = 256, }, [BOARD_DAS1702HR_DA] = { .name = "das-1702hr-da", .id = DAS1800_ID_HR_DA, .ai_speed = 20000, - .qram_len = 256, }, [BOARD_DAS1701AO] = { .name = "das-1701ao", .id = DAS1800_ID_AO, .ai_speed = 6250, - .qram_len = 256, .is_01_series = 1, }, [BOARD_DAS1702AO] = { .name = "das-1702ao", .id = DAS1800_ID_AO, .ai_speed = 6250, - .qram_len = 256, }, [BOARD_DAS1801ST] = { .name = "das-1801st", .id = DAS1800_ID_ST, .ai_speed = 3000, - .qram_len = 256, .is_01_series = 1, }, [BOARD_DAS1801ST_DA] = { .name = "das-1801st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 3000, - .qram_len = 256, .is_01_series = 1, }, [BOARD_DAS1802ST] = { .name = "das-1802st", .id = DAS1800_ID_ST, .ai_speed = 3000, - .qram_len = 256, }, [BOARD_DAS1802ST_DA] = { .name = "das-1802st-da", .id = DAS1800_ID_ST_DA, .ai_speed = 3000, - .qram_len = 256, }, [BOARD_DAS1802HR] = { .name = "das-1802hr", .id = DAS1800_ID_HR, .ai_speed = 10000, - .qram_len = 256, }, [BOARD_DAS1802HR_DA] = { .name = "das-1802hr-da", .id = DAS1800_ID_HR_DA, .ai_speed = 10000, - .qram_len = 256, }, [BOARD_DAS1801HC] = { .name = "das-1801hc", .id = DAS1800_ID_HC, .ai_speed = 3000, - .qram_len = 64, .is_01_series = 1, }, [BOARD_DAS1802HC] = { .name = "das-1802hc", .id = DAS1800_ID_HC, .ai_speed = 3000, - .qram_len = 64, }, [BOARD_DAS1801AO] = { .name = "das-1801ao", .id = DAS1800_ID_AO, .ai_speed = 3000, - .qram_len = 256, .is_01_series = 1, }, [BOARD_DAS1802AO] = { .name = "das-1802ao", .id = DAS1800_ID_AO, .ai_speed = 3000, - .qram_len = 256, }, }; @@ -1292,13 +1273,26 @@ static int das1800_attach(struct comedi_device *dev, if (ret) return ret; - /* Analog Input subdevice */ + /* + * Analog Input subdevice + * + * The "hc" type boards have 64 analog input channels and a 64 + * entry QRAM fifo. + * + * All the other board types have 16 on-board channels. Each channel + * can be expanded to 16 channels with the addition of an EXP-1800 + * expansion board for a total of 256 channels. The QRAM fifo on + * these boards has 256 entries. + * + * From the datasheets it's not clear what the comedi channel to + * actual physical channel mapping is when EXP-1800 boards are used. + */ s = &dev->subdevices[0]; s->type = COMEDI_SUBD_AI; s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_GROUND; if (board->id != DAS1800_ID_HC) s->subdev_flags |= SDF_COMMON; - s->n_chan = board->qram_len; + s->n_chan = (board->id == DAS1800_ID_HC) ? 64 : 256; s->maxdata = is_16bit ? 0xffff : 0x0fff; s->range_table = board->is_01_series ? &das1801_ai_range : &das1802_ai_range; -- cgit v0.10.2 From a5405cfa1b37ea2156abdbb589e06e29140844f4 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:46 -0700 Subject: staging: comedi: das1800: change type of 'ai_speed' boardinfo This value is compared against the unsigned int cmd->convert_arg to check the minimum value (max speed) for the analog input conversion timing. For aesthetics, change the type to match the cmd->convert_arg type. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index d3aca97..52a8c5b 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -225,7 +225,7 @@ enum das1800_boardid { struct das1800_board { const char *name; unsigned char id; - int ai_speed; /* max conversion period in nanoseconds */ + unsigned int ai_speed; unsigned int is_01_series:1; }; -- cgit v0.10.2 From 750bca653d0efae236b07988c013485ccd0a5f22 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:47 -0700 Subject: staging: comedi: das1800: add analog output readback Use the core provided readback support to allow reading back the last value written to the analog output channels. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 52a8c5b..64b5403 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -91,7 +91,6 @@ Unipolar and bipolar ranges cannot be mixed in the channel/gain list. TODO: Make it automatically allocate irq and dma channels if they are not specified Add support for analog out on 'ao' cards - read insn for analog out */ #include @@ -341,8 +340,6 @@ struct das1800_private { int dma_bits; uint16_t *fifo_buf; /* bounce buffer for analog input FIFO */ unsigned long iobase2; /* secondary io address used for analog out on 'ao' boards */ - unsigned short ao_update_bits; /* remembers the last write to the - * 'update' dac */ bool ai_is_unipolar; }; @@ -1017,7 +1014,6 @@ static int das1800_ao_insn_write(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { - struct das1800_private *devpriv = dev->private; unsigned int chan = CR_CHAN(insn->chanspec); unsigned int update_chan = s->n_chan - 1; unsigned long flags; @@ -1029,9 +1025,9 @@ static int das1800_ao_insn_write(struct comedi_device *dev, for (i = 0; i < insn->n; i++) { unsigned int val = data[i]; + s->readback[chan] = val; + val = comedi_offset_munge(s, val); - if (chan == update_chan) - devpriv->ao_update_bits = val; /* load this channel (and update if it's the last channel) */ outb(DAC(chan), dev->iobase + DAS1800_SELECT); @@ -1039,9 +1035,10 @@ static int das1800_ao_insn_write(struct comedi_device *dev, /* update all channels */ if (chan != update_chan) { + val = comedi_offset_munge(s, s->readback[update_chan]); + outb(DAC(update_chan), dev->iobase + DAS1800_SELECT); - outw(devpriv->ao_update_bits, - dev->iobase + DAS1800_DAC); + outw(val, dev->iobase + DAS1800_DAC); } } spin_unlock_irqrestore(&dev->spinlock, flags); @@ -1318,6 +1315,10 @@ static int das1800_attach(struct comedi_device *dev, s->range_table = &range_bipolar10; s->insn_write = das1800_ao_insn_write; + ret = comedi_alloc_subdev_readback(s); + if (ret) + return ret; + /* initialize all channels to 0V */ for (i = 0; i < s->n_chan; i++) { outb(DAC(i), dev->iobase + DAS1800_SELECT); -- cgit v0.10.2 From 843681c8835bcf4e02f993beae65e356a01d0111 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:48 -0700 Subject: staging: comedi: das1800: introduce das1800_ai_chanspec_bits() Introduce a helper function for the common code needed to set the control c register bits for a channel specification. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 64b5403..5694bdb 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -749,25 +749,32 @@ static int control_a_bits(const struct comedi_cmd *cmd) return control_a; } -/* returns appropriate bits for control register c, depending on command */ -static int control_c_bits(struct comedi_subdevice *s, - const struct comedi_cmd *cmd) +static unsigned char das1800_ai_chanspec_bits(struct comedi_subdevice *s, + unsigned int chanspec) { - unsigned int range = CR_RANGE(cmd->chanlist[0]); - unsigned int aref = CR_AREF(cmd->chanlist[0]); - int control_c; + unsigned int range = CR_RANGE(chanspec); + unsigned int aref = CR_AREF(chanspec); + unsigned char bits; - /* set clock source to internal or external, select analog reference, - * select unipolar / bipolar - */ - control_c = UQEN; /* enable upper qram addresses */ + bits = UQEN; if (aref != AREF_DIFF) - control_c |= SD; + bits |= SD; if (aref == AREF_COMMON) - control_c |= CMEN; + bits |= CMEN; if (comedi_range_is_unipolar(s, range)) - control_c |= UB; + bits |= UB; + + return bits; +} + +static int control_c_bits(struct comedi_subdevice *s, + const struct comedi_cmd *cmd) +{ + int control_c; + control_c = das1800_ai_chanspec_bits(s, cmd->chanlist[0]); + + /* set clock source to internal or external */ switch (cmd->scan_begin_src) { case TRIG_FOLLOW: /* not in burst mode */ switch (cmd->convert_src) { @@ -955,25 +962,15 @@ static int das1800_ai_insn_read(struct comedi_device *dev, { unsigned int chan = CR_CHAN(insn->chanspec); unsigned int range = CR_RANGE(insn->chanspec); - unsigned int aref = CR_AREF(insn->chanspec); bool is_unipolar = comedi_range_is_unipolar(s, range); int i, n; int chan_range; int timeout = 1000; unsigned short dpnt; - int conv_flags = 0; unsigned long irq_flags; - /* set up analog reference and unipolar / bipolar mode */ - conv_flags |= UQEN; - if (aref != AREF_DIFF) - conv_flags |= SD; - if (aref == AREF_COMMON) - conv_flags |= CMEN; - if (is_unipolar) - conv_flags |= UB; - - outb(conv_flags, dev->iobase + DAS1800_CONTROL_C); /* software conversion enabled */ + outb(das1800_ai_chanspec_bits(s, insn->chanspec), + dev->iobase + DAS1800_CONTROL_C); /* software pacer */ outb(CVEN, dev->iobase + DAS1800_STATUS); /* enable conversions */ outb(0x0, dev->iobase + DAS1800_CONTROL_A); /* reset fifo */ outb(FFEN, dev->iobase + DAS1800_CONTROL_A); -- cgit v0.10.2 From ceba8220df4705e61f7a7c519e2f73e67dd05528 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:49 -0700 Subject: staging: comedi: das1800: absorb control_c_bits() Absorb this helper function into the analog input (*do_cmd). For aesthetics, convert the switch code into if/else. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 5694bdb..0a4876e 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -767,44 +767,6 @@ static unsigned char das1800_ai_chanspec_bits(struct comedi_subdevice *s, return bits; } -static int control_c_bits(struct comedi_subdevice *s, - const struct comedi_cmd *cmd) -{ - int control_c; - - control_c = das1800_ai_chanspec_bits(s, cmd->chanlist[0]); - - /* set clock source to internal or external */ - switch (cmd->scan_begin_src) { - case TRIG_FOLLOW: /* not in burst mode */ - switch (cmd->convert_src) { - case TRIG_TIMER: - /* trig on cascaded counters */ - control_c |= IPCLK; - break; - case TRIG_EXT: - /* trig on falling edge of external trigger */ - control_c |= XPCLK; - break; - default: - break; - } - break; - case TRIG_TIMER: - /* burst mode with internal pacer clock */ - control_c |= BMDE | IPCLK; - break; - case TRIG_EXT: - /* burst mode with external trigger */ - control_c |= BMDE | XPCLK; - break; - default: - break; - } - - return control_c; -} - static unsigned int das1800_ai_transfer_size(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int maxbytes, @@ -922,7 +884,25 @@ static int das1800_ai_cmd(struct comedi_device *dev, /* determine proper bits for control registers */ control_a = control_a_bits(cmd); - control_c = control_c_bits(s, cmd); + + control_c = das1800_ai_chanspec_bits(s, cmd->chanlist[0]); + /* set clock source to internal or external */ + if (cmd->scan_begin_src == TRIG_FOLLOW) { + /* not in burst mode */ + if (cmd->convert_src == TRIG_TIMER) { + /* trig on cascaded counters */ + control_c |= IPCLK; + } else { /* TRIG_EXT */ + /* trig on falling edge of external trigger */ + control_c |= XPCLK; + } + } else if (cmd->scan_begin_src == TRIG_TIMER) { + /* burst mode with internal pacer clock */ + control_c |= BMDE | IPCLK; + } else { /* TRIG_EXT */ + /* burst mode with external trigger */ + control_c |= BMDE | XPCLK; + } /* setup card and start */ program_chanlist(dev, cmd); -- cgit v0.10.2 From 7b1924b6fc8a9dbf602458bfba45065301fada48 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:50 -0700 Subject: staging: comedi: das1800: refactor program_chanlist() Refactor this function so it can be used to program the chanlist for the analog input (*do_cmd) and (*insn_read). Rename the function so it has namespace associated with the driver. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 0a4876e..2bb53db 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -828,30 +828,33 @@ static void das1800_ai_setup_dma(struct comedi_device *dev, } } -/* programs channel/gain list into card */ -static void program_chanlist(struct comedi_device *dev, - const struct comedi_cmd *cmd) +static void das1800_ai_set_chanlist(struct comedi_device *dev, + unsigned int *chanlist, unsigned int len) { - int i, n, chan_range; - unsigned long irq_flags; - const int range_mask = 0x3; /* masks unipolar/bipolar bit off range */ - const int range_bitshift = 8; - - n = cmd->chanlist_len; - /* spinlock protects indirect addressing */ - spin_lock_irqsave(&dev->spinlock, irq_flags); - outb(QRAM, dev->iobase + DAS1800_SELECT); /* select QRAM for baseAddress + 0x0 */ - outb(n - 1, dev->iobase + DAS1800_QRAM_ADDRESS); /*set QRAM address start */ + unsigned long flags; + unsigned int i; + + /* protects the indirect addressing selected by DAS1800_SELECT */ + spin_lock_irqsave(&dev->spinlock, flags); + + /* select QRAM register and set start address */ + outb(QRAM, dev->iobase + DAS1800_SELECT); + outb(len - 1, dev->iobase + DAS1800_QRAM_ADDRESS); + /* make channel / gain list */ - for (i = 0; i < n; i++) { - chan_range = - CR_CHAN(cmd->chanlist[i]) | - ((CR_RANGE(cmd->chanlist[i]) & range_mask) << - range_bitshift); - outw(chan_range, dev->iobase + DAS1800_QRAM); + for (i = 0; i < len; i++) { + unsigned int chan = CR_CHAN(chanlist[i]); + unsigned int range = CR_RANGE(chanlist[i]); + unsigned short val; + + val = chan | ((range & 0x3) << 8); + outw(val, dev->iobase + DAS1800_QRAM); } - outb(n - 1, dev->iobase + DAS1800_QRAM_ADDRESS); /*finish write to QRAM */ - spin_unlock_irqrestore(&dev->spinlock, irq_flags); + + /* finish write to QRAM */ + outb(len - 1, dev->iobase + DAS1800_QRAM_ADDRESS); + + spin_unlock_irqrestore(&dev->spinlock, flags); } static int das1800_ai_cmd(struct comedi_device *dev, @@ -904,8 +907,7 @@ static int das1800_ai_cmd(struct comedi_device *dev, control_c |= BMDE | XPCLK; } - /* setup card and start */ - program_chanlist(dev, cmd); + das1800_ai_set_chanlist(dev, cmd->chanlist, cmd->chanlist_len); /* setup cascaded counters for conversion/scan frequency */ if ((cmd->scan_begin_src == TRIG_FOLLOW || @@ -940,14 +942,12 @@ static int das1800_ai_insn_read(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { - unsigned int chan = CR_CHAN(insn->chanspec); unsigned int range = CR_RANGE(insn->chanspec); bool is_unipolar = comedi_range_is_unipolar(s, range); int i, n; - int chan_range; int timeout = 1000; unsigned short dpnt; - unsigned long irq_flags; + unsigned long flags; outb(das1800_ai_chanspec_bits(s, insn->chanspec), dev->iobase + DAS1800_CONTROL_C); /* software pacer */ @@ -955,13 +955,13 @@ static int das1800_ai_insn_read(struct comedi_device *dev, outb(0x0, dev->iobase + DAS1800_CONTROL_A); /* reset fifo */ outb(FFEN, dev->iobase + DAS1800_CONTROL_A); - chan_range = chan | ((range & 0x3) << 8); - spin_lock_irqsave(&dev->spinlock, irq_flags); - outb(QRAM, dev->iobase + DAS1800_SELECT); /* select QRAM for baseAddress + 0x0 */ - outb(0x0, dev->iobase + DAS1800_QRAM_ADDRESS); /* set QRAM address start */ - outw(chan_range, dev->iobase + DAS1800_QRAM); - outb(0x0, dev->iobase + DAS1800_QRAM_ADDRESS); /*finish write to QRAM */ - outb(ADC, dev->iobase + DAS1800_SELECT); /* select ADC for baseAddress + 0x0 */ + das1800_ai_set_chanlist(dev, &insn->chanspec, 1); + + /* protects the indirect addressing selected by DAS1800_SELECT */ + spin_lock_irqsave(&dev->spinlock, flags); + + /* select ai fifo register */ + outb(ADC, dev->iobase + DAS1800_SELECT); for (n = 0; n < insn->n; n++) { /* trigger conversion */ @@ -981,7 +981,7 @@ static int das1800_ai_insn_read(struct comedi_device *dev, data[n] = dpnt; } exit: - spin_unlock_irqrestore(&dev->spinlock, irq_flags); + spin_unlock_irqrestore(&dev->spinlock, flags); return n; } -- cgit v0.10.2 From cfc2236bbce6f0e21e2618c02d750a5239d45352 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:51 -0700 Subject: staging: comedi: das1800: use comedi_timeout() Use the helper function to handle the busywaiting for the analog input conversion to complete. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 2bb53db..4355171 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -937,6 +937,19 @@ static int das1800_ai_cmd(struct comedi_device *dev, return 0; } +static int das1800_ai_eoc(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned long context) +{ + unsigned char status; + + status = inb(dev->iobase + DAS1800_STATUS); + if (status & FNE) + return 0; + return -EBUSY; +} + static int das1800_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, @@ -944,8 +957,8 @@ static int das1800_ai_insn_read(struct comedi_device *dev, { unsigned int range = CR_RANGE(insn->chanspec); bool is_unipolar = comedi_range_is_unipolar(s, range); - int i, n; - int timeout = 1000; + int ret = 0; + int n; unsigned short dpnt; unsigned long flags; @@ -966,24 +979,19 @@ static int das1800_ai_insn_read(struct comedi_device *dev, for (n = 0; n < insn->n; n++) { /* trigger conversion */ outb(0, dev->iobase + DAS1800_FIFO); - for (i = 0; i < timeout; i++) { - if (inb(dev->iobase + DAS1800_STATUS) & FNE) - break; - } - if (i == timeout) { - dev_err(dev->class_dev, "timeout\n"); - n = -ETIME; - goto exit; - } + + ret = comedi_timeout(dev, s, insn, das1800_ai_eoc, 0); + if (ret) + break; + dpnt = inw(dev->iobase + DAS1800_FIFO); if (!is_unipolar) dpnt = comedi_offset_munge(s, dpnt); data[n] = dpnt; } -exit: spin_unlock_irqrestore(&dev->spinlock, flags); - return n; + return ret ? ret : insn->n; } static int das1800_ao_insn_write(struct comedi_device *dev, -- cgit v0.10.2 From fb90ec01bc8364a6ae7b8436c759f7541ebfd37f Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:52 -0700 Subject: staging: comedi: das1800: absorb control_a_bits() Absorb this helper function into the analog input (*do_cmd). For aesthetics, convert the switch code into if/else. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 4355171..677f430 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -727,28 +727,6 @@ static int das1800_ai_cmdtest(struct comedi_device *dev, return 0; } -/* returns appropriate bits for control register a, depending on command */ -static int control_a_bits(const struct comedi_cmd *cmd) -{ - int control_a; - - control_a = FFEN; /* enable fifo */ - if (cmd->stop_src == TRIG_EXT) - control_a |= ATEN; - switch (cmd->start_src) { - case TRIG_EXT: - control_a |= TGEN | CGSL; - break; - case TRIG_NOW: - control_a |= CGEN; - break; - default: - break; - } - - return control_a; -} - static unsigned char das1800_ai_chanspec_bits(struct comedi_subdevice *s, unsigned int chanspec) { @@ -885,8 +863,13 @@ static int das1800_ai_cmd(struct comedi_device *dev, devpriv->ai_is_unipolar = comedi_range_is_unipolar(s, range0); - /* determine proper bits for control registers */ - control_a = control_a_bits(cmd); + control_a = FFEN; + if (cmd->stop_src == TRIG_EXT) + control_a |= ATEN; + if (cmd->start_src == TRIG_EXT) + control_a |= TGEN | CGSL; + else /* TRIG_NOW */ + control_a |= CGEN; control_c = das1800_ai_chanspec_bits(s, cmd->chanlist[0]); /* set clock source to internal or external */ -- cgit v0.10.2 From 983330210fe138e1194e0b2ccca02400ae41c0be Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:53 -0700 Subject: staging: comedi: das1800: document the spinlock The comedi_device spinlock is used to protect the indirect addressing selected by the DAS1800_SELECT register. It also prevents races between the interrupt handler and the analog input (*poll). Update the comments to make this clear. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 677f430..365a3d5 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -490,8 +490,9 @@ static void das1800_ai_handler(struct comedi_device *dev) struct comedi_cmd *cmd = &async->cmd; unsigned int status = inb(dev->iobase + DAS1800_STATUS); - /* select adc for base address + 0 */ + /* select adc register (spinlock is already held) */ outb(ADC, dev->iobase + DAS1800_SELECT); + /* dma buffer full */ if (devpriv->irq_dma_bits & DMA_ENABLED) { /* look for data from dma transfer even if dma terminal count hasn't happened yet */ @@ -535,9 +536,14 @@ static int das1800_ai_poll(struct comedi_device *dev, { unsigned long flags; - /* prevent race with interrupt handler */ + /* + * Protects the indirect addressing selected by DAS1800_SELECT + * in das1800_ai_handler() also prevents race with das1800_interrupt(). + */ spin_lock_irqsave(&dev->spinlock, flags); + das1800_ai_handler(dev); + spin_unlock_irqrestore(&dev->spinlock, flags); return comedi_buf_n_bytes_ready(s); @@ -553,9 +559,12 @@ static irqreturn_t das1800_interrupt(int irq, void *d) return IRQ_HANDLED; } - /* Prevent race with das1800_ai_poll() on multi processor systems. - * Also protects indirect addressing in das1800_ai_handler */ + /* + * Protects the indirect addressing selected by DAS1800_SELECT + * in das1800_ai_handler() also prevents race with das1800_ai_poll(). + */ spin_lock(&dev->spinlock); + status = inb(dev->iobase + DAS1800_STATUS); /* if interrupt was not caused by das-1800 */ @@ -1289,6 +1298,7 @@ static int das1800_attach(struct comedi_device *dev, /* initialize all channels to 0V */ for (i = 0; i < s->n_chan; i++) { + /* spinlock is not necessary during the attach */ outb(DAC(i), dev->iobase + DAS1800_SELECT); outw(0, dev->iobase + DAS1800_DAC); } -- cgit v0.10.2 From bface0f3233043bcd50a29f35496ff8ceefd5b90 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:54 -0700 Subject: staging: comedi: das1800: cleanup copyright and comedi comment blocks Tidy up these multi-line comments to fix the checkpatch.pl issues: WARNING: Block comments use * on subsequent lines WARNING: line over 80 characters Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 365a3d5..118fa76 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -1,97 +1,63 @@ /* - comedi/drivers/das1800.c - Driver for Keitley das1700/das1800 series boards - Copyright (C) 2000 Frank Mori Hess - - COMEDI - Linux Control and Measurement Device Interface - Copyright (C) 2000 David A. Schleef - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ -/* -Driver: das1800 -Description: Keithley Metrabyte DAS1800 (& compatibles) -Author: Frank Mori Hess -Devices: [Keithley Metrabyte] DAS-1701ST (das-1701st), - DAS-1701ST-DA (das-1701st-da), DAS-1701/AO (das-1701ao), - DAS-1702ST (das-1702st), DAS-1702ST-DA (das-1702st-da), - DAS-1702HR (das-1702hr), DAS-1702HR-DA (das-1702hr-da), - DAS-1702/AO (das-1702ao), DAS-1801ST (das-1801st), - DAS-1801ST-DA (das-1801st-da), DAS-1801HC (das-1801hc), - DAS-1801AO (das-1801ao), DAS-1802ST (das-1802st), - DAS-1802ST-DA (das-1802st-da), DAS-1802HR (das-1802hr), - DAS-1802HR-DA (das-1802hr-da), DAS-1802HC (das-1802hc), - DAS-1802AO (das-1802ao) -Status: works - -The waveform analog output on the 'ao' cards is not supported. -If you need it, send me (Frank Hess) an email. - -Configuration options: - [0] - I/O port base address - [1] - IRQ (optional, required for timed or externally triggered conversions) - [2] - DMA0 (optional, requires irq) - [3] - DMA1 (optional, requires irq and dma0) -*/ -/* + * Comedi driver for Keithley DAS-1700/DAS-1800 series boards + * Copyright (C) 2000 Frank Mori Hess + * + * COMEDI - Linux Control and Measurement Device Interface + * Copyright (C) 2000 David A. Schleef + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ -This driver supports the following Keithley boards: - -das-1701st -das-1701st-da -das-1701ao -das-1702st -das-1702st-da -das-1702hr -das-1702hr-da -das-1702ao -das-1801st -das-1801st-da -das-1801hc -das-1801ao -das-1802st -das-1802st-da -das-1802hr -das-1802hr-da -das-1802hc -das-1802ao - -Options: - [0] - base io address - [1] - irq (optional, required for timed or externally triggered conversions) - [2] - dma0 (optional, requires irq) - [3] - dma1 (optional, requires irq and dma0) - -irq can be omitted, although the cmd interface will not work without it. - -analog input cmd triggers supported: - start_src: TRIG_NOW | TRIG_EXT - scan_begin_src: TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT - scan_end_src: TRIG_COUNT - convert_src: TRIG_TIMER | TRIG_EXT (TRIG_EXT requires scan_begin_src == TRIG_FOLLOW) - stop_src: TRIG_COUNT | TRIG_EXT | TRIG_NONE - -scan_begin_src triggers TRIG_TIMER and TRIG_EXT use the card's -'burst mode' which limits the valid conversion time to 64 microseconds -(convert_arg <= 64000). This limitation does not apply if scan_begin_src -is TRIG_FOLLOW. - -NOTES: -Only the DAS-1801ST has been tested by me. -Unipolar and bipolar ranges cannot be mixed in the channel/gain list. - -TODO: - Make it automatically allocate irq and dma channels if they are not specified - Add support for analog out on 'ao' cards -*/ +/* + * Driver: das1800 + * Description: Keithley Metrabyte DAS1800 (& compatibles) + * Author: Frank Mori Hess + * Devices: [Keithley Metrabyte] DAS-1701ST (das-1701st), + * DAS-1701ST-DA (das-1701st-da), DAS-1701/AO (das-1701ao), + * DAS-1702ST (das-1702st), DAS-1702ST-DA (das-1702st-da), + * DAS-1702HR (das-1702hr), DAS-1702HR-DA (das-1702hr-da), + * DAS-1702/AO (das-1702ao), DAS-1801ST (das-1801st), + * DAS-1801ST-DA (das-1801st-da), DAS-1801HC (das-1801hc), + * DAS-1801AO (das-1801ao), DAS-1802ST (das-1802st), + * DAS-1802ST-DA (das-1802st-da), DAS-1802HR (das-1802hr), + * DAS-1802HR-DA (das-1802hr-da), DAS-1802HC (das-1802hc), + * DAS-1802AO (das-1802ao) + * Status: works + * + * Configuration options: + * [0] - I/O port base address + * [1] - IRQ (optional, required for analog input cmd support) + * [2] - DMA0 (optional, requires irq) + * [3] - DMA1 (optional, requires irq and dma0) + * + * analog input cmd triggers supported: + * start_src: TRIG_NOW | TRIG_EXT + * scan_begin_src: TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT + * scan_end_src: TRIG_COUNT + * convert_src: TRIG_TIMER | TRIG_EXT + * (TRIG_EXT requires scan_begin_src == TRIG_FOLLOW) + * stop_src: TRIG_COUNT | TRIG_EXT | TRIG_NONE + * + * scan_begin_src triggers TRIG_TIMER and TRIG_EXT use the card's + * 'burst mode' which limits the valid conversion time to 64 microseconds + * (convert_arg <= 64000). This limitation does not apply if scan_begin_src + * is TRIG_FOLLOW. + * + * NOTES: + * Only the DAS-1801ST has been tested by me. + * Unipolar and bipolar ranges cannot be mixed in the channel/gain list. + * + * The waveform analog output on the 'ao' cards is not supported. + * If you need it, send me (Frank Hess) an email. + */ #include #include -- cgit v0.10.2 From cc3ddba2c5ca09f477b072286d7d43493d347188 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:55 -0700 Subject: staging: comedi: das1800: change type of private data 'fifo_buf' Fix the checkpatch.pl issue: CHECK: Prefer kernel type 'u16' over 'uint16_t' Change the type to 'unsigned short' as that is more typical in comedi drivers. Use sizeof(*p) instead of sizeof(type) when allocation the buffer. Also fix the checkpatch.pl issue: WARNING: line over 80 characters Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 118fa76..6045978 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -304,7 +304,7 @@ struct das1800_private { /* dma bits for control register b, stored so that dma can be * turned on and off */ int dma_bits; - uint16_t *fifo_buf; /* bounce buffer for analog input FIFO */ + unsigned short *fifo_buf; unsigned long iobase2; /* secondary io address used for analog out on 'ao' boards */ bool ai_is_unipolar; }; @@ -1200,7 +1200,9 @@ static int das1800_attach(struct comedi_device *dev, if (dev->irq & it->options[2]) das1800_init_dma(dev, it); - devpriv->fifo_buf = kmalloc_array(FIFO_SIZE, sizeof(uint16_t), GFP_KERNEL); + devpriv->fifo_buf = kmalloc_array(FIFO_SIZE, + sizeof(*devpriv->fifo_buf), + GFP_KERNEL); if (!devpriv->fifo_buf) return -ENOMEM; -- cgit v0.10.2 From 5b28b8c45979e78e91773ec93a33c5dbafb737f7 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:56 -0700 Subject: staging: comedi: das1800: move comment about max conversion speeds For aesthetics, move this information into the comedi comment block. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 6045978..9268acb 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -51,6 +51,9 @@ * (convert_arg <= 64000). This limitation does not apply if scan_begin_src * is TRIG_FOLLOW. * + * The maximum conversion speeds are not always achievable depending on the + * board setup (see user manual). + * * NOTES: * Only the DAS-1801ST has been tested by me. * Unipolar and bipolar ranges cannot be mixed in the channel/gain list. @@ -194,10 +197,6 @@ struct das1800_board { unsigned int is_01_series:1; }; -/* Warning: the maximum conversion speeds listed below are - * not always achievable depending on board setup (see - * user manual.) - */ static const struct das1800_board das1800_boards[] = { [BOARD_DAS1701ST] = { .name = "das-1701st", -- cgit v0.10.2 From cf9eaee0edaf77d46be528f6293c08deb7b646e8 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:57 -0700 Subject: staging: comedi: das1800: remove the private data member comments The comments about the members of the private data are not really necessary and removing them fixes a couple checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 9268acb..8302f33 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -299,12 +299,10 @@ static const struct das1800_board das1800_boards[] = { struct das1800_private { struct comedi_isadma *dma; - int irq_dma_bits; /* bits for control register b */ - /* dma bits for control register b, stored so that dma can be - * turned on and off */ + int irq_dma_bits; int dma_bits; unsigned short *fifo_buf; - unsigned long iobase2; /* secondary io address used for analog out on 'ao' boards */ + unsigned long iobase2; bool ai_is_unipolar; }; -- cgit v0.10.2 From 7d5fa05cc41bba07908661de9790ad9291777ba6 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:58 -0700 Subject: staging: comedi: das1800: clarify step 4 of the ai (*do_cmdtest) This step of the (*do_cmdtest) fixes the timing arguments when the cmd->convert_src is TRIG_TIMER. The code is compact but it's a bit hard to understand the "burst mode" vs. "non burst mode" (i.e. paced) timing. Clarify the fixup by splitting it into separate functions to check the arguments based on if the command is doing 'paced' or 'burst' timing. Add some comments to clarify the fixups. This also fixes a minor issue with the 'burst' timing. When the cmd->scan_begin_src is also TRIG_TIMER the pacer clock is used to start each scan. The cmd->scan_begin_arg specifies the scan time. The minimum (not maximum) value for this time must be large enough for the 'burst' conversion time to sample all the channels. The current 'max' check limits the scan time to the minimum time (i.e. the max conversion speed). Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 8302f33..ea6aa5a 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -544,33 +544,73 @@ static irqreturn_t das1800_interrupt(int irq, void *d) return IRQ_HANDLED; } -/* converts requested conversion timing to timing compatible with - * hardware, used only when card is in 'burst mode' - */ -static unsigned int burst_convert_arg(unsigned int convert_arg, int flags) +static int das1800_ai_fixup_paced_timing(struct comedi_device *dev, + struct comedi_cmd *cmd) { - unsigned int micro_sec; + unsigned int arg = cmd->convert_arg; + + /* + * Paced mode: + * scan_begin_src is TRIG_FOLLOW + * convert_src is TRIG_TIMER + * + * The convert_arg sets the pacer sample acquisition time. + * The max acquisition speed is limited to the boards + * 'ai_speed' (this was already verified). The min speed is + * limited by the cascaded 8254 timer. + */ + comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags); + return comedi_check_trigger_arg_is(&cmd->convert_arg, arg); +} - /* in burst mode, the maximum conversion time is 64 microseconds */ - if (convert_arg > 64000) - convert_arg = 64000; +static int das1800_ai_fixup_burst_timing(struct comedi_device *dev, + struct comedi_cmd *cmd) +{ + unsigned int arg = cmd->convert_arg; + int err = 0; + + /* + * Burst mode: + * scan_begin_src is TRIG_TIMER or TRIG_EXT + * convert_src is TRIG_TIMER + * + * The convert_arg sets burst sample acquisition time. + * The max acquisition speed is limited to the boards + * 'ai_speed' (this was already verified). The min speed is + * limiited to 64 microseconds, + */ + err |= comedi_check_trigger_arg_max(&arg, 64000); - /* the conversion time must be an integral number of microseconds */ - switch (flags & CMDF_ROUND_MASK) { + /* round to microseconds then verify */ + switch (cmd->flags & CMDF_ROUND_MASK) { case CMDF_ROUND_NEAREST: default: - micro_sec = (convert_arg + 500) / 1000; + arg = DIV_ROUND_CLOSEST(arg, 1000); break; case CMDF_ROUND_DOWN: - micro_sec = convert_arg / 1000; + arg = arg / 1000; break; case CMDF_ROUND_UP: - micro_sec = (convert_arg - 1) / 1000 + 1; + arg = DIV_ROUND_UP(arg, 1000); break; } + err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg * 1000); + + /* + * The pacer can be used to set the scan sample rate. The max scan + * speed is limited by the conversion speed and the number of channels + * to convert. The min speed is limited by the cascaded 8254 timer. + */ + if (cmd->scan_begin_src == TRIG_TIMER) { + arg = cmd->convert_arg * cmd->chanlist_len; + err |= comedi_check_trigger_arg_min(&cmd->scan_begin_arg, arg); - /* return number of nanoseconds */ - return micro_sec * 1000; + arg = cmd->scan_begin_arg; + comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags); + err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, arg); + } + + return err; } static int das1800_ai_check_chanlist(struct comedi_device *dev, @@ -600,7 +640,6 @@ static int das1800_ai_cmdtest(struct comedi_device *dev, { const struct das1800_board *board = dev->board_ptr; int err = 0; - unsigned int arg; /* Step 1 : check if triggers are trivially valid */ @@ -659,31 +698,13 @@ static int das1800_ai_cmdtest(struct comedi_device *dev, if (err) return 3; - /* step 4: fix up any arguments */ + /* Step 4: fix up any arguments */ - if (cmd->scan_begin_src == TRIG_FOLLOW && - cmd->convert_src == TRIG_TIMER) { - /* we are not in burst mode */ - arg = cmd->convert_arg; - comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, cmd->flags); - err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg); - } else if (cmd->convert_src == TRIG_TIMER) { - /* we are in burst mode */ - arg = burst_convert_arg(cmd->convert_arg, cmd->flags); - err |= comedi_check_trigger_arg_is(&cmd->convert_arg, arg); - - if (cmd->scan_begin_src == TRIG_TIMER) { - arg = cmd->convert_arg * cmd->chanlist_len; - err |= comedi_check_trigger_arg_max(&cmd-> - scan_begin_arg, - arg); - - arg = cmd->scan_begin_arg; - comedi_8254_cascade_ns_to_timer(dev->pacer, &arg, - cmd->flags); - err |= comedi_check_trigger_arg_is(&cmd->scan_begin_arg, - arg); - } + if (cmd->convert_src == TRIG_TIMER) { + if (cmd->scan_begin_src == TRIG_FOLLOW) + err |= das1800_ai_fixup_paced_timing(dev, cmd); + else /* TRIG_TIMER or TRIG_EXT */ + err |= das1800_ai_fixup_burst_timing(dev, cmd); } if (err) -- cgit v0.10.2 From 18092f4486138195cc49d2ced17e0a4f38b4718a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:41:59 -0700 Subject: staging: comedi: das1800: remove the function comments These comments are just added cruft. Remove them. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index ea6aa5a..3bfe041 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -359,7 +359,6 @@ static void das1800_handle_fifo_not_empty(struct comedi_device *dev, } } -/* Utility function used by das1800_flush_dma() and das1800_handle_dma() */ static void das1800_flush_dma_channel(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_isadma_desc *desc) @@ -375,8 +374,6 @@ static void das1800_flush_dma_channel(struct comedi_device *dev, comedi_buf_write_samples(s, desc->virt_addr, nsamples); } -/* flushes remaining data from board when external trigger has stopped acquisition - * and we are using dma transfers */ static void das1800_flush_dma(struct comedi_device *dev, struct comedi_subdevice *s) { @@ -444,7 +441,6 @@ static int das1800_ai_cancel(struct comedi_device *dev, return 0; } -/* the guts of the interrupt handler, that is shared with das1800_ai_poll */ static void das1800_ai_handler(struct comedi_device *dev) { struct das1800_private *devpriv = dev->private; -- cgit v0.10.2 From 99ad808faf61cb884c3e6e5643114f8e3326c7e8 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:42:00 -0700 Subject: staging: comedi: das1800: fix comments in das1800_ai_cmd() Fix the checkpatch.pl issues: WARNING: Block comments use a trailing */ on a separate line WARNING: line over 80 characters Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 3bfe041..42996cd 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -833,8 +833,10 @@ static int das1800_ai_cmd(struct comedi_device *dev, const struct comedi_cmd *cmd = &async->cmd; unsigned int range0 = CR_RANGE(cmd->chanlist[0]); - /* disable dma on CMDF_WAKE_EOS, or CMDF_PRIORITY - * (because dma in handler is unsafe at hard real-time priority) */ + /* + * Disable dma on CMDF_WAKE_EOS, or CMDF_PRIORITY (because dma in + * handler is unsafe at hard real-time priority). + */ if (cmd->flags & (CMDF_WAKE_EOS | CMDF_PRIORITY)) devpriv->irq_dma_bits &= ~DMA_ENABLED; else @@ -897,14 +899,15 @@ static int das1800_ai_cmd(struct comedi_device *dev, outb(control_c, dev->iobase + DAS1800_CONTROL_C); /* set conversion rate and length for burst mode */ if (control_c & BMDE) { - /* program conversion period with number of microseconds minus 1 */ - outb(cmd->convert_arg / 1000 - 1, + outb(cmd->convert_arg / 1000 - 1, /* microseconds - 1 */ dev->iobase + DAS1800_BURST_RATE); outb(cmd->chanlist_len - 1, dev->iobase + DAS1800_BURST_LENGTH); } - outb(devpriv->irq_dma_bits, dev->iobase + DAS1800_CONTROL_B); /* enable irq/dma */ - outb(control_a, dev->iobase + DAS1800_CONTROL_A); /* enable fifo and triggering */ - outb(CVEN, dev->iobase + DAS1800_STATUS); /* enable conversions */ + + /* enable and start conversions */ + outb(devpriv->irq_dma_bits, dev->iobase + DAS1800_CONTROL_B); + outb(control_a, dev->iobase + DAS1800_CONTROL_A); + outb(CVEN, dev->iobase + DAS1800_STATUS); return 0; } -- cgit v0.10.2 From b52fd5f08ea6949a0855fb180641257160bbec76 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:42:01 -0700 Subject: staging: comedi: das1800: fix comments in das1800_ai_handler() Fix the checkpatch.pl issues: WARNING: line over 80 characters Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 42996cd..1edb3d6 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -452,15 +452,13 @@ static void das1800_ai_handler(struct comedi_device *dev) /* select adc register (spinlock is already held) */ outb(ADC, dev->iobase + DAS1800_SELECT); - /* dma buffer full */ - if (devpriv->irq_dma_bits & DMA_ENABLED) { - /* look for data from dma transfer even if dma terminal count hasn't happened yet */ + /* get samples with dma, fifo, or polled as necessary */ + if (devpriv->irq_dma_bits & DMA_ENABLED) das1800_handle_dma(dev, s, status); - } else if (status & FHF) { /* if fifo half full */ + else if (status & FHF) das1800_handle_fifo_half_full(dev, s); - } else if (status & FNE) { /* if fifo not empty */ + else if (status & FNE) das1800_handle_fifo_not_empty(dev, s); - } /* if the card's fifo has overflowed */ if (status & OVF) { @@ -476,7 +474,7 @@ static void das1800_ai_handler(struct comedi_device *dev) if (status & CT0TC) { /* clear CT0TC interrupt bit */ outb(CLEAR_INTR_MASK & ~CT0TC, dev->iobase + DAS1800_STATUS); - /* make sure we get all remaining data from board before quitting */ + /* get all remaining samples before quitting */ if (devpriv->irq_dma_bits & DMA_ENABLED) das1800_flush_dma(dev, s); else -- cgit v0.10.2 From 6d8c9a9e88ae4d4f0fb9970cb3757eaefe4370fd Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:42:02 -0700 Subject: staging: comedi: das1800: fix lines over 80 characters These comments are just extra cruft. Remove them to fix the checkpatch.pl issues: WARNING: line over 80 characters Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 1edb3d6..87285b2 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -100,7 +100,7 @@ #define DMA_CH5_CH6 0x5 #define DMA_CH6_CH7 0x6 #define DMA_CH7_CH5 0x7 -#define DMA_ENABLED 0x3 /* mask used to determine if dma is enabled */ +#define DMA_ENABLED 0x3 #define DMA_DUAL 0x4 #define IRQ3 0x8 #define IRQ5 0x10 @@ -118,22 +118,21 @@ #define SD 0x40 #define UB 0x80 #define DAS1800_STATUS 0x7 -/* bits that prevent interrupt status bits (and CVEN) from being cleared on write */ -#define CLEAR_INTR_MASK (CVEN_MASK | 0x1f) #define INT 0x1 #define DMATC 0x2 #define CT0TC 0x8 #define OVF 0x10 #define FHF 0x20 #define FNE 0x40 -#define CVEN_MASK 0x40 /* masks CVEN on write */ #define CVEN 0x80 +#define CVEN_MASK 0x40 +#define CLEAR_INTR_MASK (CVEN_MASK | 0x1f) #define DAS1800_BURST_LENGTH 0x8 #define DAS1800_BURST_RATE 0x9 #define DAS1800_QRAM_ADDRESS 0xa #define DAS1800_COUNTER 0xc -#define IOBASE2 0x400 /* offset of additional ioports used on 'ao' cards */ +#define IOBASE2 0x400 static const struct comedi_lrange das1801_ai_range = { 8, { -- cgit v0.10.2 From 5f657f8bf3fd4a238239264dc56b2edd6bee9e07 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:42:03 -0700 Subject: staging: comedi: das1800: fix comments about the 'ao' board range The waveform analog outputs on the 'ao' boards are not currently supported. Modify the comment about the analog output range on these boards so that the information is saved but fixes the checkpatch.pl issues: WARNING: Block comments use a trailing */ on a separate line Move the comment so it's grouped with the comedi_lrange info. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 87285b2..9153c9b 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -160,6 +160,12 @@ static const struct comedi_lrange das1802_ai_range = { } }; +/* + * The waveform analog outputs on the 'ao' boards are not currently + * supported. They have a comedi_lrange of: + * { 2, { BIP_RANGE(10), BIP_RANGE(5) } } + */ + enum das1800_boardid { BOARD_DAS1701ST, BOARD_DAS1701ST_DA, @@ -305,16 +311,6 @@ struct das1800_private { bool ai_is_unipolar; }; -/* analog out range for 'ao' boards */ -/* -static const struct comedi_lrange range_ao_2 = { - 2, { - BIP_RANGE(10), - BIP_RANGE(5) - } -}; -*/ - static void das1800_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s, void *data, unsigned int num_bytes, -- cgit v0.10.2 From a2706b094353b6210446af3be174c9eddfd7ce01 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:42:04 -0700 Subject: staging: comedi: das1800: clarify the analog input cmd triggers Clarify the documentation in the comedi driver comment block to better explain the cmd triggert. Add a comment to step 2b of the (*do_cmdtest) to clarify the trigger check. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 9153c9b..bfbc2bb 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -39,19 +39,32 @@ * [3] - DMA1 (optional, requires irq and dma0) * * analog input cmd triggers supported: - * start_src: TRIG_NOW | TRIG_EXT - * scan_begin_src: TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT - * scan_end_src: TRIG_COUNT - * convert_src: TRIG_TIMER | TRIG_EXT - * (TRIG_EXT requires scan_begin_src == TRIG_FOLLOW) - * stop_src: TRIG_COUNT | TRIG_EXT | TRIG_NONE * - * scan_begin_src triggers TRIG_TIMER and TRIG_EXT use the card's - * 'burst mode' which limits the valid conversion time to 64 microseconds - * (convert_arg <= 64000). This limitation does not apply if scan_begin_src - * is TRIG_FOLLOW. + * start_src TRIG_NOW command starts immediately + * TRIG_EXT command starts on external pin TGIN * - * The maximum conversion speeds are not always achievable depending on the + * scan_begin_src TRIG_FOLLOW paced/external scans start immediately + * TRIG_TIMER burst scans start periodically + * TRIG_EXT burst scans start on external pin XPCLK + * + * scan_end_src TRIG_COUNT scan ends after last channel + * + * convert_src TRIG_TIMER paced/burst conversions are timed + * TRIG_EXT conversions on external pin XPCLK + * (requires scan_begin_src == TRIG_FOLLOW) + * + * stop_src TRIG_COUNT command stops after stop_arg scans + * TRIG_EXT command stops on external pin TGIN + * TRIG_NONE command runs until canceled + * + * If TRIG_EXT is used for both the start_src and stop_src, the first TGIN + * trigger starts the command, and the second trigger will stop it. If only + * one is TRIG_EXT, the first trigger will either stop or start the command. + * + * Minimum conversion speed is limited to 64 microseconds (convert_arg <= 64000) + * for 'burst' scans. This limitation does not apply for 'paced' scans. The + * maximum conversion speed is limited by the board (convert_arg >= ai_speed). + * Maximum conversion speeds are not always achievable depending on the * board setup (see user manual). * * NOTES: @@ -653,6 +666,7 @@ static int das1800_ai_cmdtest(struct comedi_device *dev, /* Step 2b : and mutually compatible */ + /* burst scans must use timed conversions */ if (cmd->scan_begin_src != TRIG_FOLLOW && cmd->convert_src != TRIG_TIMER) err |= -EINVAL; -- cgit v0.10.2 From a6b7dbb2be27636e80e4124f157e08b33e451b80 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:42:05 -0700 Subject: staging: comedi: das1800: allow setting the external trigger polarity The external pin TGIN can be used to start and/or stop the analog input command. Currently the driver only supports negative edge polarity for this signal. Add support to allow the user to select positive edge polarity using the CR_INVERT flag. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index bfbc2bb..875b6f5 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -60,6 +60,9 @@ * If TRIG_EXT is used for both the start_src and stop_src, the first TGIN * trigger starts the command, and the second trigger will stop it. If only * one is TRIG_EXT, the first trigger will either stop or start the command. + * The external pin TGIN is normally set for negative edge triggering. It + * can be set to positive edge with the CR_INVERT flag. If TRIG_EXT is used + * for both the start_src and stop_src they must have the same polarity. * * Minimum conversion speed is limited to 64 microseconds (convert_arg <= 64000) * for 'burst' scans. This limitation does not apply for 'paced' scans. The @@ -105,6 +108,7 @@ #define CGSL 0x8 #define TGEN 0x10 #define TGSL 0x20 +#define TGPL 0x40 #define ATEN 0x80 #define DAS1800_CONTROL_B 0x5 #define DMA_CH5 0x1 @@ -671,12 +675,18 @@ static int das1800_ai_cmdtest(struct comedi_device *dev, cmd->convert_src != TRIG_TIMER) err |= -EINVAL; + /* the external pin TGIN must use the same polarity */ + if (cmd->start_src == TRIG_EXT && cmd->stop_src == TRIG_EXT) + err |= comedi_check_trigger_arg_is(&cmd->start_arg, + cmd->stop_arg); + if (err) return 2; /* Step 3: check if arguments are trivially valid */ - err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); + if (cmd->start_arg == TRIG_NOW) + err |= comedi_check_trigger_arg_is(&cmd->start_arg, 0); if (cmd->convert_src == TRIG_TIMER) { err |= comedi_check_trigger_arg_min(&cmd->convert_arg, @@ -868,6 +878,10 @@ static int das1800_ai_cmd(struct comedi_device *dev, control_a |= TGEN | CGSL; else /* TRIG_NOW */ control_a |= CGEN; + if (control_a & (ATEN | TGEN)) { + if ((cmd->start_arg & CR_INVERT) || (cmd->stop_arg & CR_INVERT)) + control_a |= TGPL; + } control_c = das1800_ai_chanspec_bits(s, cmd->chanlist[0]); /* set clock source to internal or external */ -- cgit v0.10.2 From 098353038bedf133860c5457488a895bd1de00c1 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 8 Apr 2016 12:42:06 -0700 Subject: staging: comedi: das1800: update the MODULE_DESCRIPTION Change the MODULE_DESCRIPTION to something more usefull than the generic "Comedi low-level driver". Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 875b6f5..e0a34c2 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -1369,5 +1369,5 @@ static struct comedi_driver das1800_driver = { module_comedi_driver(das1800_driver); MODULE_AUTHOR("Comedi http://www.comedi.org"); -MODULE_DESCRIPTION("Comedi low-level driver"); +MODULE_DESCRIPTION("Comedi driver for DAS1800 compatible ISA boards"); MODULE_LICENSE("GPL"); -- cgit v0.10.2 From bf2388b1eab18018cb469c7c55b837b1da911043 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:49 -0700 Subject: staging: comedi: ni_mio_common: remove some unnecessary BUG_ON() The mite dma channels are only requested by a subdevice with a (*do_cmd) and they are released by a (*cancel). The comedi core will only call the (*do_cmd) if the subdevice is not already running a command and all commands are terminated by the core with a (*cancel). Remove the BUG_ON() checks in the request functions which can never happen. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 71c8fd2..7a32605 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -665,7 +665,6 @@ static int ni_request_ai_mite_channel(struct comedi_device *dev) unsigned long flags; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - BUG_ON(devpriv->ai_mite_chan); devpriv->ai_mite_chan = mite_request_channel(devpriv->mite, devpriv->ai_mite_ring); if (!devpriv->ai_mite_chan) { @@ -686,7 +685,6 @@ static int ni_request_ao_mite_channel(struct comedi_device *dev) unsigned long flags; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - BUG_ON(devpriv->ao_mite_chan); devpriv->ao_mite_chan = mite_request_channel(devpriv->mite, devpriv->ao_mite_ring); if (!devpriv->ao_mite_chan) { @@ -710,7 +708,6 @@ static int ni_request_gpct_mite_channel(struct comedi_device *dev, struct mite_channel *mite_chan; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - BUG_ON(devpriv->counter_dev->counters[gpct_index].mite_chan); mite_chan = mite_request_channel(devpriv->mite, devpriv->gpct_mite_ring[gpct_index]); @@ -737,7 +734,6 @@ static int ni_request_cdo_mite_channel(struct comedi_device *dev) unsigned long flags; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - BUG_ON(devpriv->cdo_mite_chan); devpriv->cdo_mite_chan = mite_request_channel(devpriv->mite, devpriv->cdo_mite_ring); if (!devpriv->cdo_mite_chan) { -- cgit v0.10.2 From 38b81a7a41d48e84d71f0b65fa15a684c9ae81da Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:50 -0700 Subject: staging: comedi: ni_mio_common: tidy up mite dma channel requests Tidy up the functions that request the mite dma channels by absorbing the inline helper functions that call ni_set_bitfield() to set the channel selection bits. Add support for the NI_M_CDIO_DMA_SEL_REG register to ni_set_bitfield() so that all the soft_reg_copy_lock spinlocking is done in one place. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 7a32605..231cd2c 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -556,6 +556,11 @@ static inline void ni_set_bitfield(struct comedi_device *dev, int reg, devpriv->g0_g1_select_reg |= bit_values & bit_mask; ni_writeb(dev, devpriv->g0_g1_select_reg, reg); break; + case NI_M_CDIO_DMA_SEL_REG: + devpriv->cdio_dma_select_reg &= ~bit_mask; + devpriv->cdio_dma_select_reg |= bit_values & bit_mask; + ni_writeb(dev, devpriv->cdio_dma_select_reg, reg); + break; default: dev_err(dev->class_dev, "called with invalid register %d\n", reg); @@ -579,45 +584,16 @@ static inline unsigned ni_stc_dma_channel_select_bitfield(unsigned channel) return 0; } -static inline void ni_set_ai_dma_channel(struct comedi_device *dev, - unsigned channel) -{ - unsigned bits = ni_stc_dma_channel_select_bitfield(channel); - - ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, - NI_E_DMA_AI_SEL_MASK, NI_E_DMA_AI_SEL(bits)); -} - static inline void ni_set_ai_dma_no_channel(struct comedi_device *dev) { ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, NI_E_DMA_AI_SEL_MASK, 0); } -static inline void ni_set_ao_dma_channel(struct comedi_device *dev, - unsigned channel) -{ - unsigned bits = ni_stc_dma_channel_select_bitfield(channel); - - ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, - NI_E_DMA_AO_SEL_MASK, NI_E_DMA_AO_SEL(bits)); -} - static inline void ni_set_ao_dma_no_channel(struct comedi_device *dev) { ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, NI_E_DMA_AO_SEL_MASK, 0); } -static inline void ni_set_gpct_dma_channel(struct comedi_device *dev, - unsigned gpct_index, - unsigned channel) -{ - unsigned bits = ni_stc_dma_channel_select_bitfield(channel); - - ni_set_bitfield(dev, NI_E_DMA_G0_G1_SEL_REG, - NI_E_DMA_G0_G1_SEL_MASK(gpct_index), - NI_E_DMA_G0_G1_SEL(gpct_index, bits)); -} - static inline void ni_set_gpct_dma_no_channel(struct comedi_device *dev, unsigned gpct_index) { @@ -625,56 +601,34 @@ static inline void ni_set_gpct_dma_no_channel(struct comedi_device *dev, NI_E_DMA_G0_G1_SEL_MASK(gpct_index), 0); } -static inline void ni_set_cdo_dma_channel(struct comedi_device *dev, - unsigned mite_channel) -{ - struct ni_private *devpriv = dev->private; - unsigned long flags; - unsigned bits; - - spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); - devpriv->cdio_dma_select_reg &= ~NI_M_CDIO_DMA_SEL_CDO_MASK; - /* - * XXX just guessing ni_stc_dma_channel_select_bitfield() - * returns the right bits, under the assumption the cdio dma - * selection works just like ai/ao/gpct. - * Definitely works for dma channels 0 and 1. - */ - bits = ni_stc_dma_channel_select_bitfield(mite_channel); - devpriv->cdio_dma_select_reg |= NI_M_CDIO_DMA_SEL_CDO(bits); - ni_writeb(dev, devpriv->cdio_dma_select_reg, NI_M_CDIO_DMA_SEL_REG); - mmiowb(); - spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); -} - static inline void ni_set_cdo_dma_no_channel(struct comedi_device *dev) { - struct ni_private *devpriv = dev->private; - unsigned long flags; - - spin_lock_irqsave(&devpriv->soft_reg_copy_lock, flags); - devpriv->cdio_dma_select_reg &= ~NI_M_CDIO_DMA_SEL_CDO_MASK; - ni_writeb(dev, devpriv->cdio_dma_select_reg, NI_M_CDIO_DMA_SEL_REG); - mmiowb(); - spin_unlock_irqrestore(&devpriv->soft_reg_copy_lock, flags); + ni_set_bitfield(dev, NI_M_CDIO_DMA_SEL_REG, + NI_M_CDIO_DMA_SEL_CDO_MASK, 0); } static int ni_request_ai_mite_channel(struct comedi_device *dev) { struct ni_private *devpriv = dev->private; + struct mite_channel *mite_chan; unsigned long flags; + unsigned int bits; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - devpriv->ai_mite_chan = - mite_request_channel(devpriv->mite, devpriv->ai_mite_ring); - if (!devpriv->ai_mite_chan) { + mite_chan = mite_request_channel(devpriv->mite, devpriv->ai_mite_ring); + if (!mite_chan) { spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); dev_err(dev->class_dev, "failed to reserve mite dma channel for analog input\n"); return -EBUSY; } - devpriv->ai_mite_chan->dir = COMEDI_INPUT; - ni_set_ai_dma_channel(dev, devpriv->ai_mite_chan->channel); + mite_chan->dir = COMEDI_INPUT; + devpriv->ai_mite_chan = mite_chan; + + bits = ni_stc_dma_channel_select_bitfield(mite_chan->channel); + ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, + NI_E_DMA_AI_SEL_MASK, NI_E_DMA_AI_SEL(bits)); + spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); return 0; } @@ -682,19 +636,25 @@ static int ni_request_ai_mite_channel(struct comedi_device *dev) static int ni_request_ao_mite_channel(struct comedi_device *dev) { struct ni_private *devpriv = dev->private; + struct mite_channel *mite_chan; unsigned long flags; + unsigned int bits; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - devpriv->ao_mite_chan = - mite_request_channel(devpriv->mite, devpriv->ao_mite_ring); - if (!devpriv->ao_mite_chan) { + mite_chan = mite_request_channel(devpriv->mite, devpriv->ao_mite_ring); + if (!mite_chan) { spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); dev_err(dev->class_dev, "failed to reserve mite dma channel for analog outut\n"); return -EBUSY; } - devpriv->ao_mite_chan->dir = COMEDI_OUTPUT; - ni_set_ao_dma_channel(dev, devpriv->ao_mite_chan->channel); + mite_chan->dir = COMEDI_OUTPUT; + devpriv->ao_mite_chan = mite_chan; + + bits = ni_stc_dma_channel_select_bitfield(mite_chan->channel); + ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, + NI_E_DMA_AO_SEL_MASK, NI_E_DMA_AO_SEL(bits)); + spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); return 0; } @@ -704,13 +664,14 @@ static int ni_request_gpct_mite_channel(struct comedi_device *dev, enum comedi_io_direction direction) { struct ni_private *devpriv = dev->private; - unsigned long flags; + struct ni_gpct *counter = &devpriv->counter_dev->counters[gpct_index]; struct mite_channel *mite_chan; + unsigned long flags; + unsigned int bits; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - mite_chan = - mite_request_channel(devpriv->mite, - devpriv->gpct_mite_ring[gpct_index]); + mite_chan = mite_request_channel(devpriv->mite, + devpriv->gpct_mite_ring[gpct_index]); if (!mite_chan) { spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); dev_err(dev->class_dev, @@ -718,9 +679,13 @@ static int ni_request_gpct_mite_channel(struct comedi_device *dev, return -EBUSY; } mite_chan->dir = direction; - ni_tio_set_mite_channel(&devpriv->counter_dev->counters[gpct_index], - mite_chan); - ni_set_gpct_dma_channel(dev, gpct_index, mite_chan->channel); + ni_tio_set_mite_channel(counter, mite_chan); + + bits = ni_stc_dma_channel_select_bitfield(mite_chan->channel); + ni_set_bitfield(dev, NI_E_DMA_G0_G1_SEL_REG, + NI_E_DMA_G0_G1_SEL_MASK(gpct_index), + NI_E_DMA_G0_G1_SEL(gpct_index, bits)); + spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); return 0; } @@ -731,19 +696,32 @@ static int ni_request_cdo_mite_channel(struct comedi_device *dev) { #ifdef PCIDMA struct ni_private *devpriv = dev->private; + struct mite_channel *mite_chan; unsigned long flags; + unsigned int bits; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - devpriv->cdo_mite_chan = - mite_request_channel(devpriv->mite, devpriv->cdo_mite_ring); - if (!devpriv->cdo_mite_chan) { + mite_chan = mite_request_channel(devpriv->mite, devpriv->cdo_mite_ring); + if (!mite_chan) { spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); dev_err(dev->class_dev, "failed to reserve mite dma channel for correlated digital output\n"); return -EBUSY; } - devpriv->cdo_mite_chan->dir = COMEDI_OUTPUT; - ni_set_cdo_dma_channel(dev, devpriv->cdo_mite_chan->channel); + mite_chan->dir = COMEDI_OUTPUT; + devpriv->cdo_mite_chan = mite_chan; + + /* + * XXX just guessing ni_stc_dma_channel_select_bitfield() + * returns the right bits, under the assumption the cdio dma + * selection works just like ai/ao/gpct. + * Definitely works for dma channels 0 and 1. + */ + bits = ni_stc_dma_channel_select_bitfield(mite_chan->channel); + ni_set_bitfield(dev, NI_M_CDIO_DMA_SEL_REG, + NI_M_CDIO_DMA_SEL_CDO_MASK, + NI_M_CDIO_DMA_SEL_CDO(bits)); + spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); #endif /* PCIDMA */ return 0; -- cgit v0.10.2 From b7cd3f604954cac03717b522d0ef02cc7c01f257 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:51 -0700 Subject: staging: comedi: ni_mio_common: tidy up mite dma channel releases Absorb the inline helper functions that call ni_set_bitfield() to clear the dma channel selection bits. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 231cd2c..11a2453 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -584,29 +584,6 @@ static inline unsigned ni_stc_dma_channel_select_bitfield(unsigned channel) return 0; } -static inline void ni_set_ai_dma_no_channel(struct comedi_device *dev) -{ - ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, NI_E_DMA_AI_SEL_MASK, 0); -} - -static inline void ni_set_ao_dma_no_channel(struct comedi_device *dev) -{ - ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, NI_E_DMA_AO_SEL_MASK, 0); -} - -static inline void ni_set_gpct_dma_no_channel(struct comedi_device *dev, - unsigned gpct_index) -{ - ni_set_bitfield(dev, NI_E_DMA_G0_G1_SEL_REG, - NI_E_DMA_G0_G1_SEL_MASK(gpct_index), 0); -} - -static inline void ni_set_cdo_dma_no_channel(struct comedi_device *dev) -{ - ni_set_bitfield(dev, NI_M_CDIO_DMA_SEL_REG, - NI_M_CDIO_DMA_SEL_CDO_MASK, 0); -} - static int ni_request_ai_mite_channel(struct comedi_device *dev) { struct ni_private *devpriv = dev->private; @@ -735,7 +712,8 @@ static void ni_release_ai_mite_channel(struct comedi_device *dev) spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->ai_mite_chan) { - ni_set_ai_dma_no_channel(dev); + ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, + NI_E_DMA_AI_SEL_MASK, 0); mite_release_channel(devpriv->ai_mite_chan); devpriv->ai_mite_chan = NULL; } @@ -751,7 +729,8 @@ static void ni_release_ao_mite_channel(struct comedi_device *dev) spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->ao_mite_chan) { - ni_set_ao_dma_no_channel(dev); + ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, + NI_E_DMA_AO_SEL_MASK, 0); mite_release_channel(devpriv->ao_mite_chan); devpriv->ao_mite_chan = NULL; } @@ -771,7 +750,8 @@ static void ni_release_gpct_mite_channel(struct comedi_device *dev, struct mite_channel *mite_chan = devpriv->counter_dev->counters[gpct_index].mite_chan; - ni_set_gpct_dma_no_channel(dev, gpct_index); + ni_set_bitfield(dev, NI_E_DMA_G0_G1_SEL_REG, + NI_E_DMA_G0_G1_SEL_MASK(gpct_index), 0); ni_tio_set_mite_channel(&devpriv-> counter_dev->counters[gpct_index], NULL); @@ -789,7 +769,8 @@ static void ni_release_cdo_mite_channel(struct comedi_device *dev) spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->cdo_mite_chan) { - ni_set_cdo_dma_no_channel(dev); + ni_set_bitfield(dev, NI_M_CDIO_DMA_SEL_REG, + NI_M_CDIO_DMA_SEL_CDO_MASK, 0); mite_release_channel(devpriv->cdo_mite_chan); devpriv->cdo_mite_chan = NULL; } -- cgit v0.10.2 From cf122bb4a641e091b6b5322c907ea3853eef6566 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:52 -0700 Subject: staging: comedi: ni_mio_common: tidy up DIO subdevice ifdef'ery This file is is bit of a mess. It's included by the ni_atmio, ni_mio_cs, and ni_pcimio drivers. The ni_pcimio driver is the only one that uses DMA. It defines PCIDMA so that the dma code is compiled it. This causes a bunch of ifdef'ery in the file. The DIO subdevice for the ni_pcidio "is_m_series" boards is quite different from the standard e-series DIO. Mainly it supports async commands that use DMA. Tidy up some of the ifdef'ery by adding ifdef to the subdevice init. Move the is_m_series check to the main interrupt handler so that the unneded handle_cdio_interrupt() can be blocked out for the ni_atmio and ni_mio_cs drivers. Consolidate the other ifdef's to block out the affected code. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 11a2453..7ba6c6e 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -667,11 +667,8 @@ static int ni_request_gpct_mite_channel(struct comedi_device *dev, return 0; } -#endif /* PCIDMA */ - static int ni_request_cdo_mite_channel(struct comedi_device *dev) { -#ifdef PCIDMA struct ni_private *devpriv = dev->private; struct mite_channel *mite_chan; unsigned long flags; @@ -700,9 +697,9 @@ static int ni_request_cdo_mite_channel(struct comedi_device *dev) NI_M_CDIO_DMA_SEL_CDO(bits)); spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); -#endif /* PCIDMA */ return 0; } +#endif /* PCIDMA */ static void ni_release_ai_mite_channel(struct comedi_device *dev) { @@ -759,11 +756,9 @@ static void ni_release_gpct_mite_channel(struct comedi_device *dev, } spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); } -#endif /* PCIDMA */ static void ni_release_cdo_mite_channel(struct comedi_device *dev) { -#ifdef PCIDMA struct ni_private *devpriv = dev->private; unsigned long flags; @@ -775,10 +770,8 @@ static void ni_release_cdo_mite_channel(struct comedi_device *dev) devpriv->cdo_mite_chan = NULL; } spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); -#endif /* PCIDMA */ } -#ifdef PCIDMA static void ni_e_series_enable_second_irq(struct comedi_device *dev, unsigned gpct_index, short enable) { @@ -3505,6 +3498,7 @@ static int ni_dio_insn_bits(struct comedi_device *dev, return insn->n; } +#ifdef PCIDMA static int ni_m_series_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, @@ -3610,10 +3604,8 @@ static int ni_cdo_inttrig(struct comedi_device *dev, const unsigned timeout = 1000; int retval = 0; unsigned i; -#ifdef PCIDMA struct ni_private *devpriv = dev->private; unsigned long flags; -#endif if (trig_num != cmd->start_arg) return -EINVAL; @@ -3623,7 +3615,6 @@ static int ni_cdo_inttrig(struct comedi_device *dev, /* read alloc the entire buffer */ comedi_buf_read_alloc(s, s->async->prealloc_bufsz); -#ifdef PCIDMA spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->cdo_mite_chan) { mite_prep_dma(devpriv->cdo_mite_chan, 32, 32); @@ -3635,7 +3626,7 @@ static int ni_cdo_inttrig(struct comedi_device *dev, spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); if (retval < 0) return retval; -#endif + /* * XXX not sure what interrupt C group does * wait for dma to fill output fifo @@ -3716,13 +3707,8 @@ static void handle_cdio_interrupt(struct comedi_device *dev) struct ni_private *devpriv = dev->private; unsigned cdio_status; struct comedi_subdevice *s = &dev->subdevices[NI_DIO_SUBDEV]; -#ifdef PCIDMA unsigned long flags; -#endif - if (!devpriv->is_m_series) - return; -#ifdef PCIDMA spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->cdo_mite_chan) { unsigned cdo_mite_status = @@ -3735,7 +3721,6 @@ static void handle_cdio_interrupt(struct comedi_device *dev) mite_sync_output_dma(devpriv->cdo_mite_chan, s); } spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); -#endif cdio_status = ni_readl(dev, NI_M_CDIO_STATUS_REG); if (cdio_status & NI_M_CDIO_STATUS_CDO_ERROR) { @@ -3751,6 +3736,7 @@ static void handle_cdio_interrupt(struct comedi_device *dev) } comedi_handle_events(dev, s); } +#endif /* PCIDMA */ static int ni_serial_hw_readwrite8(struct comedi_device *dev, struct comedi_subdevice *s, @@ -5266,7 +5252,10 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) handle_b_interrupt(dev, b_status, ao_mite_status); handle_gpct_interrupt(dev, 0); handle_gpct_interrupt(dev, 1); - handle_cdio_interrupt(dev); +#ifdef PCIDMA + if (devpriv->is_m_series) + handle_cdio_interrupt(dev); +#endif spin_unlock_irqrestore(&dev->spinlock, flags); return IRQ_HANDLED; @@ -5405,6 +5394,7 @@ static int ni_E_init(struct comedi_device *dev, s->maxdata = 1; s->range_table = &range_digital; if (devpriv->is_m_series) { +#ifdef PCIDMA s->subdev_flags |= SDF_LSAMPL; s->insn_bits = ni_m_series_dio_insn_bits; s->insn_config = ni_m_series_dio_insn_config; @@ -5424,6 +5414,7 @@ static int ni_E_init(struct comedi_device *dev, NI_M_CDI_CMD_RESET, NI_M_CDIO_CMD_REG); ni_writel(dev, s->io_bits, NI_M_DIO_DIR_REG); +#endif /* PCIDMA */ } else { s->insn_bits = ni_dio_insn_bits; s->insn_config = ni_dio_insn_config; -- cgit v0.10.2 From fe20a34aff061814da31fa7e2ac5bd4e62c2c328 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:53 -0700 Subject: staging: comedi: ni_mio_common: Prefer 'unsigned int' to bare use of 'unsigned' Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 7ba6c6e..c8497ff 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -216,7 +216,8 @@ enum ni_common_subdevices { NI_FREQ_OUT_SUBDEV, NI_NUM_SUBDEVICES }; -static inline unsigned NI_GPCT_SUBDEV(unsigned counter_index) + +static inline unsigned int NI_GPCT_SUBDEV(unsigned int counter_index) { switch (counter_index) { case 0: @@ -524,7 +525,8 @@ static uint32_t ni_stc_readl(struct comedi_device *dev, int reg) } static inline void ni_set_bitfield(struct comedi_device *dev, int reg, - unsigned bit_mask, unsigned bit_values) + unsigned int bit_mask, + unsigned int bit_values) { struct ni_private *devpriv = dev->private; unsigned long flags; @@ -572,7 +574,8 @@ static inline void ni_set_bitfield(struct comedi_device *dev, int reg, #ifdef PCIDMA /* DMA channel setup */ -static inline unsigned ni_stc_dma_channel_select_bitfield(unsigned channel) +static inline unsigned int +ni_stc_dma_channel_select_bitfield(unsigned int channel) { if (channel < 4) return 1 << channel; @@ -637,7 +640,7 @@ static int ni_request_ao_mite_channel(struct comedi_device *dev) } static int ni_request_gpct_mite_channel(struct comedi_device *dev, - unsigned gpct_index, + unsigned int gpct_index, enum comedi_io_direction direction) { struct ni_private *devpriv = dev->private; @@ -737,7 +740,7 @@ static void ni_release_ao_mite_channel(struct comedi_device *dev) #ifdef PCIDMA static void ni_release_gpct_mite_channel(struct comedi_device *dev, - unsigned gpct_index) + unsigned int gpct_index) { struct ni_private *devpriv = dev->private; unsigned long flags; @@ -773,7 +776,7 @@ static void ni_release_cdo_mite_channel(struct comedi_device *dev) } static void ni_e_series_enable_second_irq(struct comedi_device *dev, - unsigned gpct_index, short enable) + unsigned int gpct_index, short enable) { struct ni_private *devpriv = dev->private; uint16_t val = 0; @@ -884,9 +887,9 @@ static inline unsigned short ni_ao_win_inw(struct comedi_device *dev, int addr) * value should only be 1 or 0. */ static inline void ni_set_bits(struct comedi_device *dev, int reg, - unsigned bits, unsigned value) + unsigned int bits, unsigned int value) { - unsigned bit_values; + unsigned int bit_values; if (value) bit_values = bits; @@ -1314,7 +1317,7 @@ static void ack_a_interrupt(struct comedi_device *dev, unsigned short a_status) } static void handle_a_interrupt(struct comedi_device *dev, unsigned short status, - unsigned ai_mite_status) + unsigned int ai_mite_status) { struct comedi_subdevice *s = dev->read_subdev; struct comedi_cmd *cmd = &s->async->cmd; @@ -1413,7 +1416,8 @@ static void ack_b_interrupt(struct comedi_device *dev, unsigned short b_status) } static void handle_b_interrupt(struct comedi_device *dev, - unsigned short b_status, unsigned ao_mite_status) + unsigned short b_status, + unsigned int ao_mite_status) { struct comedi_subdevice *s = dev->write_subdev; /* unsigned short ack=0; */ @@ -1578,8 +1582,8 @@ static int ni_ao_setup_MITE_dma(struct comedi_device *dev) static int ni_ai_reset(struct comedi_device *dev, struct comedi_subdevice *s) { struct ni_private *devpriv = dev->private; - unsigned ai_personal; - unsigned ai_out_ctrl; + unsigned int ai_personal; + unsigned int ai_out_ctrl; ni_release_ai_mite_channel(dev); /* ai configuration */ @@ -1684,12 +1688,12 @@ static void ni_m_series_load_channelgain_list(struct comedi_device *dev, unsigned int chan, range, aref; unsigned int i; unsigned int dither; - unsigned range_code; + unsigned int range_code; ni_stc_writew(dev, 1, NISTC_CFG_MEM_CLR_REG); if ((list[0] & CR_ALT_SOURCE)) { - unsigned bypass_bits; + unsigned int bypass_bits; chan = CR_CHAN(list[0]); range = CR_RANGE(list[0]); @@ -1708,7 +1712,7 @@ static void ni_m_series_load_channelgain_list(struct comedi_device *dev, ni_writel(dev, 0, NI_M_CFG_BYPASS_FIFO_REG); } for (i = 0; i < n_chan; i++) { - unsigned config_bits = 0; + unsigned int config_bits = 0; chan = CR_CHAN(list[i]); aref = CR_AREF(list[i]); @@ -1897,7 +1901,7 @@ static int ni_ai_insn_read(struct comedi_device *dev, struct ni_private *devpriv = dev->private; unsigned int mask = (s->maxdata + 1) >> 1; int i, n; - unsigned signbits; + unsigned int signbits; unsigned int d; unsigned long dl; @@ -1991,8 +1995,8 @@ static int ni_ai_insn_read(struct comedi_device *dev, return insn->n; } -static int ni_ns_to_timer(const struct comedi_device *dev, unsigned nanosec, - unsigned int flags) +static int ni_ns_to_timer(const struct comedi_device *dev, + unsigned int nanosec, unsigned int flags) { struct ni_private *devpriv = dev->private; int divider; @@ -2012,7 +2016,7 @@ static int ni_ns_to_timer(const struct comedi_device *dev, unsigned nanosec, return divider - 1; } -static unsigned ni_timer_to_ns(const struct comedi_device *dev, int timer) +static unsigned int ni_timer_to_ns(const struct comedi_device *dev, int timer) { struct ni_private *devpriv = dev->private; @@ -2050,8 +2054,8 @@ static void ni_cmd_set_mite_transfer(struct mite_dma_descriptor_ring *ring, #endif } -static unsigned ni_min_ai_scan_period_ns(struct comedi_device *dev, - unsigned num_channels) +static unsigned int ni_min_ai_scan_period_ns(struct comedi_device *dev, + unsigned int num_channels) { const struct ni_board_struct *board = dev->board_ptr; struct ni_private *devpriv = dev->private; @@ -2242,7 +2246,7 @@ static int ni_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) int start_stop_select = 0; unsigned int stop_count; int interrupt_a_enable = 0; - unsigned ai_trig; + unsigned int ai_trig; if (dev->irq == 0) { dev_err(dev->class_dev, "cannot run command without an irq\n"); @@ -2899,7 +2903,7 @@ static void ni_ao_cmd_personalize(struct comedi_device *dev, const struct comedi_cmd *cmd) { const struct ni_board_struct *board = dev->board_ptr; - unsigned bits; + unsigned int bits; ni_stc_writew(dev, NISTC_RESET_AO_CFG_START, NISTC_RESET_REG); @@ -3130,9 +3134,10 @@ static void ni_ao_cmd_set_update(struct comedi_device *dev, */ { - unsigned trigvar = ni_ns_to_timer(dev, - cmd->scan_begin_arg, - CMDF_ROUND_NEAREST); + unsigned int trigvar; + + trigvar = ni_ns_to_timer(dev, cmd->scan_begin_arg, + CMDF_ROUND_NEAREST); /* * Wait N TB3 ticks after the start trigger before @@ -3179,7 +3184,7 @@ static void ni_ao_cmd_set_channels(struct comedi_device *dev, { struct ni_private *devpriv = dev->private; const struct comedi_cmd *cmd = &s->async->cmd; - unsigned bits = 0; + unsigned int bits = 0; ni_stc_writew(dev, NISTC_RESET_AO_CFG_START, NISTC_RESET_REG); @@ -3601,9 +3606,9 @@ static int ni_cdo_inttrig(struct comedi_device *dev, unsigned int trig_num) { struct comedi_cmd *cmd = &s->async->cmd; - const unsigned timeout = 1000; + const unsigned int timeout = 1000; int retval = 0; - unsigned i; + unsigned int i; struct ni_private *devpriv = dev->private; unsigned long flags; @@ -3654,7 +3659,7 @@ static int ni_cdio_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { struct ni_private *devpriv = dev->private; const struct comedi_cmd *cmd = &s->async->cmd; - unsigned cdo_mode_bits; + unsigned int cdo_mode_bits; int retval; ni_writel(dev, NI_M_CDO_CMD_RESET, NI_M_CDIO_CMD_REG); @@ -3705,13 +3710,13 @@ static int ni_cdio_cancel(struct comedi_device *dev, struct comedi_subdevice *s) static void handle_cdio_interrupt(struct comedi_device *dev) { struct ni_private *devpriv = dev->private; - unsigned cdio_status; + unsigned int cdio_status; struct comedi_subdevice *s = &dev->subdevices[NI_DIO_SUBDEV]; unsigned long flags; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->cdo_mite_chan) { - unsigned cdo_mite_status = + unsigned int cdo_mite_status = mite_get_status(devpriv->cdo_mite_chan); if (cdo_mite_status & CHSR_LINKC) { writel(CHOR_CLRLC, @@ -3838,7 +3843,7 @@ static int ni_serial_insn_config(struct comedi_device *dev, unsigned int *data) { struct ni_private *devpriv = dev->private; - unsigned clk_fout = devpriv->clock_and_fout; + unsigned int clk_fout = devpriv->clock_and_fout; int err = insn->n; unsigned char byte_out, byte_in = 0; @@ -3987,14 +3992,14 @@ static unsigned int ni_gpct_to_stc_register(struct comedi_device *dev, return regmap->mio_reg; } -static void ni_gpct_write_register(struct ni_gpct *counter, unsigned bits, +static void ni_gpct_write_register(struct ni_gpct *counter, unsigned int bits, enum ni_gpct_register reg) { struct comedi_device *dev = counter->counter_dev->dev; unsigned int stc_register = ni_gpct_to_stc_register(dev, reg); - static const unsigned gpct_interrupt_a_enable_mask = + static const unsigned int gpct_interrupt_a_enable_mask = NISTC_INTA_ENA_G0_GATE | NISTC_INTA_ENA_G0_TC; - static const unsigned gpct_interrupt_b_enable_mask = + static const unsigned int gpct_interrupt_b_enable_mask = NISTC_INTB_ENA_G1_GATE | NISTC_INTB_ENA_G1_TC; if (stc_register == 0) @@ -4040,8 +4045,8 @@ static void ni_gpct_write_register(struct ni_gpct *counter, unsigned bits, } } -static unsigned ni_gpct_read_register(struct ni_gpct *counter, - enum ni_gpct_register reg) +static unsigned int ni_gpct_read_register(struct ni_gpct *counter, + enum ni_gpct_register reg) { struct comedi_device *dev = counter->counter_dev->dev; unsigned int stc_register = ni_gpct_to_stc_register(dev, reg); @@ -4168,7 +4173,7 @@ static int ni_m_series_pwm_config(struct comedi_device *dev, unsigned int *data) { struct ni_private *devpriv = dev->private; - unsigned up_count, down_count; + unsigned int up_count, down_count; switch (data[0]) { case INSN_CONFIG_PWM_OUTPUT: @@ -4228,7 +4233,7 @@ static int ni_6143_pwm_config(struct comedi_device *dev, unsigned int *data) { struct ni_private *devpriv = dev->private; - unsigned up_count, down_count; + unsigned int up_count, down_count; switch (data[0]) { case INSN_CONFIG_PWM_OUTPUT: @@ -4515,8 +4520,8 @@ static int ni_m_series_eeprom_insn_read(struct comedi_device *dev, return 1; } -static unsigned ni_old_get_pfi_routing(struct comedi_device *dev, - unsigned chan) +static unsigned int ni_old_get_pfi_routing(struct comedi_device *dev, + unsigned int chan) { /* pre-m-series boards have fixed signals on pfi pins */ switch (chan) { @@ -4548,7 +4553,7 @@ static unsigned ni_old_get_pfi_routing(struct comedi_device *dev, } static int ni_old_set_pfi_routing(struct comedi_device *dev, - unsigned chan, unsigned source) + unsigned int chan, unsigned int source) { /* pre-m-series boards have fixed signals on pfi pins */ if (source != ni_old_get_pfi_routing(dev, chan)) @@ -4556,21 +4561,21 @@ static int ni_old_set_pfi_routing(struct comedi_device *dev, return 2; } -static unsigned ni_m_series_get_pfi_routing(struct comedi_device *dev, - unsigned chan) +static unsigned int ni_m_series_get_pfi_routing(struct comedi_device *dev, + unsigned int chan) { struct ni_private *devpriv = dev->private; - const unsigned array_offset = chan / 3; + const unsigned int array_offset = chan / 3; return NI_M_PFI_OUT_SEL_TO_SRC(chan, devpriv->pfi_output_select_reg[array_offset]); } static int ni_m_series_set_pfi_routing(struct comedi_device *dev, - unsigned chan, unsigned source) + unsigned int chan, unsigned int source) { struct ni_private *devpriv = dev->private; - unsigned index = chan / 3; + unsigned int index = chan / 3; unsigned short val = devpriv->pfi_output_select_reg[index]; if ((source & 0x1f) != source) @@ -4584,7 +4589,8 @@ static int ni_m_series_set_pfi_routing(struct comedi_device *dev, return 2; } -static unsigned ni_get_pfi_routing(struct comedi_device *dev, unsigned chan) +static unsigned int ni_get_pfi_routing(struct comedi_device *dev, + unsigned int chan) { struct ni_private *devpriv = dev->private; @@ -4593,8 +4599,8 @@ static unsigned ni_get_pfi_routing(struct comedi_device *dev, unsigned chan) : ni_old_get_pfi_routing(dev, chan); } -static int ni_set_pfi_routing(struct comedi_device *dev, unsigned chan, - unsigned source) +static int ni_set_pfi_routing(struct comedi_device *dev, + unsigned int chan, unsigned int source) { struct ni_private *devpriv = dev->private; @@ -4604,11 +4610,11 @@ static int ni_set_pfi_routing(struct comedi_device *dev, unsigned chan, } static int ni_config_filter(struct comedi_device *dev, - unsigned pfi_channel, + unsigned int pfi_channel, enum ni_pfi_filter_select filter) { struct ni_private *devpriv = dev->private; - unsigned bits; + unsigned int bits; if (!devpriv->is_m_series) return -ENOTSUPP; @@ -4816,27 +4822,27 @@ static int init_cs5529(struct comedi_device *dev) * Find best multiplier/divider to try and get the PLL running at 80 MHz * given an arbitrary frequency input clock. */ -static int ni_mseries_get_pll_parameters(unsigned reference_period_ns, - unsigned *freq_divider, - unsigned *freq_multiplier, - unsigned *actual_period_ns) -{ - unsigned div; - unsigned best_div = 1; - unsigned mult; - unsigned best_mult = 1; - static const unsigned pico_per_nano = 1000; - - const unsigned reference_picosec = reference_period_ns * pico_per_nano; +static int ni_mseries_get_pll_parameters(unsigned int reference_period_ns, + unsigned int *freq_divider, + unsigned int *freq_multiplier, + unsigned int *actual_period_ns) +{ + unsigned int div; + unsigned int best_div = 1; + unsigned int mult; + unsigned int best_mult = 1; + static const unsigned int pico_per_nano = 1000; + const unsigned int reference_picosec = reference_period_ns * + pico_per_nano; /* m-series wants the phased-locked loop to output 80MHz, which is divided by 4 to * 20 MHz for most timing clocks */ - static const unsigned target_picosec = 12500; - static const unsigned fudge_factor_80_to_20Mhz = 4; + static const unsigned int target_picosec = 12500; + static const unsigned int fudge_factor_80_to_20Mhz = 4; int best_period_picosec = 0; for (div = 1; div <= NI_M_PLL_MAX_DIVISOR; ++div) { for (mult = 1; mult <= NI_M_PLL_MAX_MULTIPLIER; ++mult) { - unsigned new_period_ps = + unsigned int new_period_ps = (reference_picosec * div) / mult; if (abs(new_period_ps - target_picosec) < abs(best_period_picosec - target_picosec)) { @@ -4858,17 +4864,18 @@ static int ni_mseries_get_pll_parameters(unsigned reference_period_ns, } static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, - unsigned source, unsigned period_ns) + unsigned int source, + unsigned int period_ns) { struct ni_private *devpriv = dev->private; - static const unsigned min_period_ns = 50; - static const unsigned max_period_ns = 1000; - static const unsigned timeout = 1000; - unsigned pll_control_bits; - unsigned freq_divider; - unsigned freq_multiplier; - unsigned rtsi; - unsigned i; + static const unsigned int min_period_ns = 50; + static const unsigned int max_period_ns = 1000; + static const unsigned int timeout = 1000; + unsigned int pll_control_bits; + unsigned int freq_divider; + unsigned int freq_multiplier; + unsigned int rtsi; + unsigned int i; int retval; if (source == NI_MIO_PLL_PXI10_CLOCK) @@ -4939,7 +4946,7 @@ static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, } static int ni_set_master_clock(struct comedi_device *dev, - unsigned source, unsigned period_ns) + unsigned int source, unsigned int period_ns) { struct ni_private *devpriv = dev->private; @@ -4984,7 +4991,7 @@ static int ni_set_master_clock(struct comedi_device *dev, } static int ni_valid_rtsi_output_source(struct comedi_device *dev, - unsigned chan, unsigned source) + unsigned int chan, unsigned int source) { struct ni_private *devpriv = dev->private; @@ -5019,7 +5026,7 @@ static int ni_valid_rtsi_output_source(struct comedi_device *dev, } static int ni_set_rtsi_routing(struct comedi_device *dev, - unsigned chan, unsigned src) + unsigned int chan, unsigned int src) { struct ni_private *devpriv = dev->private; @@ -5039,7 +5046,8 @@ static int ni_set_rtsi_routing(struct comedi_device *dev, return 2; } -static unsigned ni_get_rtsi_routing(struct comedi_device *dev, unsigned chan) +static unsigned int ni_get_rtsi_routing(struct comedi_device *dev, + unsigned int chan) { struct ni_private *devpriv = dev->private; @@ -5277,7 +5285,7 @@ static int ni_alloc_private(struct comedi_device *dev) } static int ni_E_init(struct comedi_device *dev, - unsigned interrupt_pin, unsigned irq_polarity) + unsigned int interrupt_pin, unsigned int irq_polarity) { const struct ni_board_struct *board = dev->board_ptr; struct ni_private *devpriv = dev->private; -- cgit v0.10.2 From 546615f9f9c6458b6a2dcdef5f64038858719136 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:54 -0700 Subject: staging: comedi: ni_mio_common: use 'unsigned int' instead of kernel types Generally comedi drivers use 'unsigned int' types instead of the kernel type 'u32' for unsigned 32-bit values. For aesthetics, change all the 'u32' and 'uin32_t' types and fix the checkpatch.pl issues about: CHECK: Prefer kernel type 'u32' over 'uint32_t' The various i/o helpers use for reading and writing the 32/16/8-bit registers all start with an 'unsigned int' value for writing and finally return an 'unsigned int' value. For aesthetics, change all the 'uint16_t' and 'uint8_t' types for insigned int and fix the checkpatch.pl issues about: CHECK: Prefer kernel type 'u16' over 'uint16_t' Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index c8497ff..d7d89c65 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -243,7 +243,7 @@ enum timebase_nanoseconds { static const int num_adc_stages_611x = 3; -static void ni_writel(struct comedi_device *dev, uint32_t data, int reg) +static void ni_writel(struct comedi_device *dev, unsigned int data, int reg) { if (dev->mmio) writel(data, dev->mmio + reg); @@ -251,7 +251,7 @@ static void ni_writel(struct comedi_device *dev, uint32_t data, int reg) outl(data, dev->iobase + reg); } -static void ni_writew(struct comedi_device *dev, uint16_t data, int reg) +static void ni_writew(struct comedi_device *dev, unsigned int data, int reg) { if (dev->mmio) writew(data, dev->mmio + reg); @@ -259,7 +259,7 @@ static void ni_writew(struct comedi_device *dev, uint16_t data, int reg) outw(data, dev->iobase + reg); } -static void ni_writeb(struct comedi_device *dev, uint8_t data, int reg) +static void ni_writeb(struct comedi_device *dev, unsigned int data, int reg) { if (dev->mmio) writeb(data, dev->mmio + reg); @@ -267,7 +267,7 @@ static void ni_writeb(struct comedi_device *dev, uint8_t data, int reg) outb(data, dev->iobase + reg); } -static uint32_t ni_readl(struct comedi_device *dev, int reg) +static unsigned int ni_readl(struct comedi_device *dev, int reg) { if (dev->mmio) return readl(dev->mmio + reg); @@ -275,7 +275,7 @@ static uint32_t ni_readl(struct comedi_device *dev, int reg) return inl(dev->iobase + reg); } -static uint16_t ni_readw(struct comedi_device *dev, int reg) +static unsigned int ni_readw(struct comedi_device *dev, int reg) { if (dev->mmio) return readw(dev->mmio + reg); @@ -283,7 +283,7 @@ static uint16_t ni_readw(struct comedi_device *dev, int reg) return inw(dev->iobase + reg); } -static uint8_t ni_readb(struct comedi_device *dev, int reg) +static unsigned int ni_readb(struct comedi_device *dev, int reg) { if (dev->mmio) return readb(dev->mmio + reg); @@ -458,7 +458,8 @@ static unsigned int m_series_stc_read(struct comedi_device *dev, } } -static void ni_stc_writew(struct comedi_device *dev, uint16_t data, int reg) +static void ni_stc_writew(struct comedi_device *dev, + unsigned int data, int reg) { struct ni_private *devpriv = dev->private; unsigned long flags; @@ -477,7 +478,8 @@ static void ni_stc_writew(struct comedi_device *dev, uint16_t data, int reg) } } -static void ni_stc_writel(struct comedi_device *dev, uint32_t data, int reg) +static void ni_stc_writel(struct comedi_device *dev, + unsigned int data, int reg) { struct ni_private *devpriv = dev->private; @@ -489,11 +491,11 @@ static void ni_stc_writel(struct comedi_device *dev, uint32_t data, int reg) } } -static uint16_t ni_stc_readw(struct comedi_device *dev, int reg) +static unsigned int ni_stc_readw(struct comedi_device *dev, int reg) { struct ni_private *devpriv = dev->private; unsigned long flags; - uint16_t val; + unsigned int val; if (devpriv->is_m_series) { val = m_series_stc_read(dev, reg); @@ -510,10 +512,10 @@ static uint16_t ni_stc_readw(struct comedi_device *dev, int reg) return val; } -static uint32_t ni_stc_readl(struct comedi_device *dev, int reg) +static unsigned int ni_stc_readl(struct comedi_device *dev, int reg) { struct ni_private *devpriv = dev->private; - uint32_t val; + unsigned int val; if (devpriv->is_m_series) { val = m_series_stc_read(dev, reg); @@ -779,7 +781,7 @@ static void ni_e_series_enable_second_irq(struct comedi_device *dev, unsigned int gpct_index, short enable) { struct ni_private *devpriv = dev->private; - uint16_t val = 0; + unsigned int val = 0; int reg; if (devpriv->is_m_series || gpct_index > 1) @@ -839,8 +841,8 @@ static void ni_clear_ai_fifo(struct comedi_device *dev) } } -static inline void ni_ao_win_outw(struct comedi_device *dev, uint16_t data, - int addr) +static inline void ni_ao_win_outw(struct comedi_device *dev, + unsigned int data, int addr) { struct ni_private *devpriv = dev->private; unsigned long flags; @@ -851,8 +853,8 @@ static inline void ni_ao_win_outw(struct comedi_device *dev, uint16_t data, spin_unlock_irqrestore(&devpriv->window_lock, flags); } -static inline void ni_ao_win_outl(struct comedi_device *dev, uint32_t data, - int addr) +static inline void ni_ao_win_outl(struct comedi_device *dev, + unsigned int data, int addr) { struct ni_private *devpriv = dev->private; unsigned long flags; @@ -989,7 +991,7 @@ static void ni_ao_fifo_load(struct comedi_device *dev, struct ni_private *devpriv = dev->private; int i; unsigned short d; - u32 packed_data; + unsigned int packed_data; for (i = 0; i < n; i++) { comedi_buf_read_samples(s, &d, 1); @@ -1079,7 +1081,7 @@ static void ni_ai_fifo_read(struct comedi_device *dev, { struct ni_private *devpriv = dev->private; struct comedi_async *async = s->async; - u32 dl; + unsigned int dl; unsigned short data; int i; @@ -1150,7 +1152,7 @@ static void ni_handle_fifo_dregs(struct comedi_device *dev) { struct ni_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; - u32 dl; + unsigned int dl; unsigned short data; unsigned short fifo_empty; int i; @@ -1211,7 +1213,7 @@ static void get_last_sample_611x(struct comedi_device *dev) struct ni_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; unsigned short data; - u32 dl; + unsigned int dl; if (!devpriv->is_611x) return; @@ -1229,7 +1231,7 @@ static void get_last_sample_6143(struct comedi_device *dev) struct ni_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; unsigned short data; - u32 dl; + unsigned int dl; if (!devpriv->is_6143) return; -- cgit v0.10.2 From bd474a02d3a3cce9086b85d038fc0f37e4b74cef Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:55 -0700 Subject: staging: comedi: ni_mio_common: tidy up block comments Fix the checkpatch.pl issues. WARNING: Block comments use * on subsequent lines Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index d7d89c65..dce8a86 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1,56 +1,53 @@ /* - comedi/drivers/ni_mio_common.c - Hardware driver for DAQ-STC based boards - - COMEDI - Linux Control and Measurement Device Interface - Copyright (C) 1997-2001 David A. Schleef - Copyright (C) 2002-2006 Frank Mori Hess - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * Hardware driver for DAQ-STC based boards + * + * COMEDI - Linux Control and Measurement Device Interface + * Copyright (C) 1997-2001 David A. Schleef + * Copyright (C) 2002-2006 Frank Mori Hess + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ /* - This file is meant to be included by another file, e.g., - ni_atmio.c or ni_pcimio.c. - - Interrupt support originally added by Truxton Fulton - - - References (from ftp://ftp.natinst.com/support/manuals): - - 340747b.pdf AT-MIO E series Register Level Programmer Manual - 341079b.pdf PCI E Series RLPM - 340934b.pdf DAQ-STC reference manual - 67xx and 611x registers (from ftp://ftp.ni.com/support/daq/mhddk/documentation/) - release_ni611x.pdf - release_ni67xx.pdf - Other possibly relevant info: - - 320517c.pdf User manual (obsolete) - 320517f.pdf User manual (new) - 320889a.pdf delete - 320906c.pdf maximum signal ratings - 321066a.pdf about 16x - 321791a.pdf discontinuation of at-mio-16e-10 rev. c - 321808a.pdf about at-mio-16e-10 rev P - 321837a.pdf discontinuation of at-mio-16de-10 rev d - 321838a.pdf about at-mio-16de-10 rev N - - ISSUES: - - - the interrupt routine needs to be cleaned up - - 2006-02-07: S-Series PCI-6143: Support has been added but is not - fully tested as yet. Terry Barnaby, BEAM Ltd. -*/ + * This file is meant to be included by another file, e.g., + * ni_atmio.c or ni_pcimio.c. + * + * Interrupt support originally added by Truxton Fulton + * + * References (ftp://ftp.natinst.com/support/manuals): + * 340747b.pdf AT-MIO E series Register Level Programmer Manual + * 341079b.pdf PCI E Series RLPM + * 340934b.pdf DAQ-STC reference manual + * + * 67xx and 611x registers (ftp://ftp.ni.com/support/daq/mhddk/documentation/) + * release_ni611x.pdf + * release_ni67xx.pdf + * + * Other possibly relevant info: + * 320517c.pdf User manual (obsolete) + * 320517f.pdf User manual (new) + * 320889a.pdf delete + * 320906c.pdf maximum signal ratings + * 321066a.pdf about 16x + * 321791a.pdf discontinuation of at-mio-16e-10 rev. c + * 321808a.pdf about at-mio-16e-10 rev P + * 321837a.pdf discontinuation of at-mio-16de-10 rev d + * 321838a.pdf about at-mio-16de-10 rev N + * + * ISSUES: + * - the interrupt routine needs to be cleaned up + * + * 2006-02-07: S-Series PCI-6143: Support has been added but is not + * fully tested as yet. Terry Barnaby, BEAM Ltd. + */ #include #include @@ -828,8 +825,10 @@ static void ni_clear_ai_fifo(struct comedi_device *dev) ni_writeb(dev, 0, NI_M_STATIC_AI_CTRL_REG(0)); ni_writeb(dev, 1, NI_M_STATIC_AI_CTRL_REG(0)); #if 0 - /* the NI example code does 3 convert pulses for 625x boards, - but that appears to be wrong in practice. */ + /* + * The NI example code does 3 convert pulses for 625x + * boards, But that appears to be wrong in practice. + */ ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE, NISTC_AI_CMD1_REG); ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE, @@ -971,8 +970,10 @@ static int ni_ao_wait_for_dma_load(struct comedi_device *dev) b_status = ni_stc_readw(dev, NISTC_AO_STATUS1_REG); if (b_status & NISTC_AO_STATUS1_FIFO_HF) break; - /* if we poll too often, the pci bus activity seems - to slow the dma transfer down */ + /* + * If we poll too often, the pci bus activity seems + * to slow the dma transfer down. + */ udelay(10); } if (i == timeout) { @@ -1145,9 +1146,7 @@ static void ni_handle_fifo_half_full(struct comedi_device *dev) } #endif -/* - Empties the AI fifo -*/ +/* Empties the AI fifo */ static void ni_handle_fifo_dregs(struct comedi_device *dev) { struct ni_private *devpriv = dev->private; @@ -1348,8 +1347,10 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status, NISTC_AI_STATUS1_SC_TC | NISTC_AI_STATUS1_START1)) { if (status == 0xffff) { dev_err(dev->class_dev, "Card removed?\n"); - /* we probably aren't even running a command now, - * so it's a good idea to be careful. */ + /* + * We probably aren't even running a command now, + * so it's a good idea to be careful. + */ if (comedi_is_subdevice_running(s)) { s->async->events |= COMEDI_CB_ERROR; comedi_handle_events(dev, s); @@ -1378,8 +1379,11 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status, if (status & NISTC_AI_STATUS1_FIFO_HF) { int i; static const int timeout = 10; - /* pcmcia cards (at least 6036) seem to stop producing interrupts if we - *fail to get the fifo less than half full, so loop to be sure.*/ + /* + * PCMCIA cards (at least 6036) seem to stop producing + * interrupts if we fail to get the fifo less than half + * full, so loop to be sure. + */ for (i = 0; i < timeout; ++i) { ni_handle_fifo_half_full(dev); if ((ni_stc_readw(dev, NISTC_AI_STATUS1_REG) & @@ -1560,8 +1564,11 @@ static int ni_ao_setup_MITE_dma(struct comedi_device *dev) if (devpriv->is_611x || devpriv->is_6713) { mite_prep_dma(devpriv->ao_mite_chan, 32, 32); } else { - /* doing 32 instead of 16 bit wide transfers from memory - makes the mite do 32 bit pci transfers, doubling pci bandwidth. */ + /* + * Doing 32 instead of 16 bit wide transfers from + * memory makes the mite do 32 bit pci transfers, + * doubling pci bandwidth. + */ mite_prep_dma(devpriv->ao_mite_chan, 16, 32); } mite_dma_arm(devpriv->ao_mite_chan); @@ -1576,11 +1583,10 @@ static int ni_ao_setup_MITE_dma(struct comedi_device *dev) #endif /* PCIDMA */ /* - used for both cancel ioctl and board initialization - - this is pretty harsh for a cancel, but it works... + * used for both cancel ioctl and board initialization + * + * this is pretty harsh for a cancel, but it works... */ - static int ni_ai_reset(struct comedi_device *dev, struct comedi_subdevice *s) { struct ni_private *devpriv = dev->private; @@ -2261,8 +2267,10 @@ static int ni_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) /* start configuration */ ni_stc_writew(dev, NISTC_RESET_AI_CFG_START, NISTC_RESET_REG); - /* disable analog triggering for now, since it - * interferes with the use of pfi0 */ + /* + * Disable analog triggering for now, since it interferes + * with the use of pfi0. + */ devpriv->an_trig_etc_reg &= ~NISTC_ATRIG_ETC_ENA; ni_stc_writew(dev, devpriv->an_trig_etc_reg, NISTC_ATRIG_ETC_REG); @@ -2834,9 +2842,11 @@ static int ni_ao_inttrig(struct comedi_device *dev, if (trig_num != cmd->start_arg) return -EINVAL; - /* Null trig at beginning prevent ao start trigger from executing more than - once per command (and doing things like trying to allocate the ao dma channel - multiple times) */ + /* + * Null trig at beginning prevent ao start trigger from executing more + * than once per command (and doing things like trying to allocate the + * ao dma channel multiple times). + */ s->async->inttrig = NULL; ni_set_bits(dev, NISTC_INTB_ENA_REG, @@ -3808,16 +3818,20 @@ static int ni_serial_sw_readwrite8(struct comedi_device *dev, udelay((devpriv->serial_interval_ns + 999) / 1000); for (mask = 0x80; mask; mask >>= 1) { - /* Output current bit; note that we cannot touch s->state - because it is a per-subdevice field, and serial is - a separate subdevice from DIO. */ + /* + * Output current bit; note that we cannot touch s->state + * because it is a per-subdevice field, and serial is + * a separate subdevice from DIO. + */ devpriv->dio_output &= ~NISTC_DIO_SDOUT; if (data_out & mask) devpriv->dio_output |= NISTC_DIO_SDOUT; ni_stc_writew(dev, devpriv->dio_output, NISTC_DIO_OUT_REG); - /* Assert SDCLK (active low, inverted), wait for half of - the delay, deassert SDCLK, and wait for the other half. */ + /* + * Assert SDCLK (active low, inverted), wait for half of + * the delay, deassert SDCLK, and wait for the other half. + */ devpriv->dio_control |= NISTC_DIO_SDCLK; ni_stc_writew(dev, devpriv->dio_control, NISTC_DIO_CTRL_REG); @@ -3864,8 +3878,10 @@ static int ni_serial_insn_config(struct comedi_device *dev, data[1] = SERIAL_DISABLED; devpriv->serial_interval_ns = data[1]; } else if (data[1] <= SERIAL_600NS) { - /* Warning: this clock speed is too fast to reliably - control SCXI. */ + /* + * Warning: this clock speed is too fast to reliably + * control SCXI. + */ devpriv->dio_control &= ~NISTC_DIO_CTRL_HW_SER_TIMEBASE; clk_fout |= NISTC_CLK_FOUT_SLOW_TIMEBASE; clk_fout &= ~NISTC_CLK_FOUT_DIO_SER_OUT_DIV2; @@ -3881,10 +3897,12 @@ static int ni_serial_insn_config(struct comedi_device *dev, devpriv->dio_control |= NISTC_DIO_CTRL_HW_SER_TIMEBASE; clk_fout |= NISTC_CLK_FOUT_SLOW_TIMEBASE | NISTC_CLK_FOUT_DIO_SER_OUT_DIV2; - /* Note: NISTC_CLK_FOUT_DIO_SER_OUT_DIV2 only affects - 600ns/1.2us. If you turn divide_by_2 off with the - slow clock, you will still get 10us, except then - all your delays are wrong. */ + /* + * Note: NISTC_CLK_FOUT_DIO_SER_OUT_DIV2 only affects + * 600ns/1.2us. If you turn divide_by_2 off with the + * slow clock, you will still get 10us, except then + * all your delays are wrong. + */ data[1] = SERIAL_10US; devpriv->serial_interval_ns = data[1]; } else { @@ -4291,13 +4309,13 @@ static int ni_6143_pwm_config(struct comedi_device *dev, static int pack_mb88341(int addr, int val, int *bitstring) { /* - Fujitsu MB 88341 - Note that address bits are reversed. Thanks to - Ingo Keen for noticing this. - - Note also that the 88341 expects address values from - 1-12, whereas we use channel numbers 0-11. The NI - docs use 1-12, also, so be careful here. + * Fujitsu MB 88341 + * Note that address bits are reversed. Thanks to + * Ingo Keen for noticing this. + * + * Note also that the 88341 expects address values from + * 1-12, whereas we use channel numbers 0-11. The NI + * docs use 1-12, also, so be careful here. */ addr++; *bitstring = ((addr & 0x1) << 11) | @@ -4767,9 +4785,12 @@ static int cs5529_ai_insn_read(struct comedi_device *dev, unsigned int channel_select; const unsigned int INTERNAL_REF = 0x1000; - /* Set calibration adc source. Docs lie, reference select bits 8 to 11 + /* + * Set calibration adc source. Docs lie, reference select bits 8 to 11 * do nothing. bit 12 seems to chooses internal reference voltage, bit - * 13 causes the adc input to go overrange (maybe reads external reference?) */ + * 13 causes the adc input to go overrange (maybe reads external + * reference?) + */ if (insn->chanspec & CR_ALT_SOURCE) channel_select = INTERNAL_REF; else @@ -4836,8 +4857,10 @@ static int ni_mseries_get_pll_parameters(unsigned int reference_period_ns, static const unsigned int pico_per_nano = 1000; const unsigned int reference_picosec = reference_period_ns * pico_per_nano; - /* m-series wants the phased-locked loop to output 80MHz, which is divided by 4 to - * 20 MHz for most timing clocks */ + /* + * m-series wants the phased-locked loop to output 80MHz, which is + * divided by 4 to 20 MHz for most timing clocks + */ static const unsigned int target_picosec = 12500; static const unsigned int fudge_factor_80_to_20Mhz = 4; int best_period_picosec = 0; -- cgit v0.10.2 From b6a0e5b32a206507b21474ad04a4854fbbda2e69 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:56 -0700 Subject: staging: comedi: ni_mio_common: fix lines over 80 characters Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index dce8a86..fa2aad4 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -877,16 +877,17 @@ static inline unsigned short ni_ao_win_inw(struct comedi_device *dev, int addr) return data; } -/* ni_set_bits( ) allows different parts of the ni_mio_common driver to -* share registers (such as Interrupt_A_Register) without interfering with -* each other. -* -* NOTE: the switch/case statements are optimized out for a constant argument -* so this is actually quite fast--- If you must wrap another function around this -* make it inline to avoid a large speed penalty. -* -* value should only be 1 or 0. -*/ +/* + * ni_set_bits( ) allows different parts of the ni_mio_common driver to + * share registers (such as Interrupt_A_Register) without interfering with + * each other. + * + * NOTE: the switch/case statements are optimized out for a constant argument + * so this is actually quite fast--- If you must wrap another function around + * this make it inline to avoid a large speed penalty. + * + * value should only be 1 or 0. + */ static inline void ni_set_bits(struct comedi_device *dev, int reg, unsigned int bits, unsigned int value) { @@ -1102,7 +1103,10 @@ static void ni_ai_fifo_read(struct comedi_device *dev, comedi_buf_write_samples(s, &data, 1); } } else if (devpriv->is_6143) { - /* This just reads the FIFO assuming the data is present, no checks on the FIFO status are performed */ + /* + * This just reads the FIFO assuming the data is present, + * no checks on the FIFO status are performed. + */ for (i = 0; i < n / 2; i++) { dl = ni_readl(dev, NI6143_AI_FIFO_DATA_REG); @@ -1153,7 +1157,6 @@ static void ni_handle_fifo_dregs(struct comedi_device *dev) struct comedi_subdevice *s = dev->read_subdev; unsigned int dl; unsigned short data; - unsigned short fifo_empty; int i; if (devpriv->is_611x) { @@ -1189,15 +1192,16 @@ static void ni_handle_fifo_dregs(struct comedi_device *dev) } } else { - fifo_empty = ni_stc_readw(dev, NISTC_AI_STATUS1_REG) & - NISTC_AI_STATUS1_FIFO_E; - while (fifo_empty == 0) { + unsigned short fe; /* fifo empty */ + + fe = ni_stc_readw(dev, NISTC_AI_STATUS1_REG) & + NISTC_AI_STATUS1_FIFO_E; + while (fe == 0) { for (i = 0; i < ARRAY_SIZE(devpriv->ai_fifo_buffer); i++) { - fifo_empty = ni_stc_readw(dev, - NISTC_AI_STATUS1_REG) & - NISTC_AI_STATUS1_FIFO_E; - if (fifo_empty) + fe = ni_stc_readw(dev, NISTC_AI_STATUS1_REG) & + NISTC_AI_STATUS1_FIFO_E; + if (fe) break; devpriv->ai_fifo_buffer[i] = ni_readw(dev, NI_E_AI_FIFO_DATA_REG); @@ -1323,7 +1327,10 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status, struct comedi_subdevice *s = dev->read_subdev; struct comedi_cmd *cmd = &s->async->cmd; - /* 67xx boards don't have ai subdevice, but their gpct0 might generate an a interrupt */ + /* + * 67xx boards don't have ai subdevice, but their gpct0 might + * generate an a interrupt. + */ if (s->type == COMEDI_SUBD_UNUSED) return; @@ -1826,7 +1833,8 @@ static void ni_load_channelgain_list(struct comedi_device *dev, ni_writew(dev, devpriv->ai_calib_source, NI6143_CALIB_CHAN_REG); devpriv->ai_calib_source_enabled = 1; - msleep_interruptible(100); /* Allow relays to change */ + /* Allow relays to change */ + msleep_interruptible(100); } else if (!(list[0] & CR_ALT_SOURCE) && devpriv->ai_calib_source_enabled) { /* Strobe Relay disable bit */ @@ -1836,7 +1844,8 @@ static void ni_load_channelgain_list(struct comedi_device *dev, ni_writew(dev, devpriv->ai_calib_source, NI6143_CALIB_CHAN_REG); devpriv->ai_calib_source_enabled = 0; - msleep_interruptible(100); /* Allow relays to change */ + /* Allow relays to change */ + msleep_interruptible(100); } } @@ -1957,7 +1966,11 @@ static int ni_ai_insn_read(struct comedi_device *dev, ni_stc_writew(dev, NISTC_AI_CMD1_CONVERT_PULSE, NISTC_AI_CMD1_REG); - /* The 6143 has 32-bit FIFOs. You need to strobe a bit to move a single 16bit stranded sample into the FIFO */ + /* + * The 6143 has 32-bit FIFOs. You need to strobe a + * bit to move a single 16bit stranded sample into + * the FIFO. + */ dl = 0; for (i = 0; i < NI_TIMEOUT; i++) { if (ni_readl(dev, NI6143_AI_FIFO_STATUS_REG) & @@ -1995,7 +2008,8 @@ static int ni_ai_insn_read(struct comedi_device *dev, data[n] = dl; } else { d = ni_readw(dev, NI_E_AI_FIFO_DATA_REG); - d += signbits; /* subtle: needs to be short addition */ + /* subtle: needs to be short addition */ + d += signbits; data[n] = d; } } @@ -2331,7 +2345,10 @@ static int ni_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) if (stop_count == 0) { devpriv->ai_cmd2 |= NISTC_AI_CMD2_END_ON_EOS; interrupt_a_enable |= NISTC_INTA_ENA_AI_STOP; - /* this is required to get the last sample for chanlist_len > 1, not sure why */ + /* + * This is required to get the last sample for + * chanlist_len > 1, not sure why. + */ if (cmd->chanlist_len > 1) start_stop_select |= NISTC_AI_STOP_POLARITY | NISTC_AI_STOP_EDGE; @@ -2451,7 +2468,7 @@ static int ni_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) switch (devpriv->aimode) { case AIMODE_HALF_FULL: - /*generate FIFO interrupts and DMA requests on half-full */ + /* FIFO interrupts and DMA requests on half-full */ #ifdef PCIDMA ni_stc_writew(dev, NISTC_AI_MODE3_FIFO_MODE_HF_E, NISTC_AI_MODE3_REG); @@ -4905,7 +4922,10 @@ static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, if (source == NI_MIO_PLL_PXI10_CLOCK) period_ns = 100; - /* these limits are somewhat arbitrary, but NI advertises 1 to 20MHz range so we'll use that */ + /* + * These limits are somewhat arbitrary, but NI advertises 1 to 20MHz + * range so we'll use that. + */ if (period_ns < min_period_ns || period_ns > max_period_ns) { dev_err(dev->class_dev, "%s: you must specify an input clock frequency between %i and %i nanosec for the phased-lock loop\n", @@ -4955,7 +4975,7 @@ static int ni_mseries_set_pll_master_clock(struct comedi_device *dev, ni_writew(dev, pll_control_bits, NI_M_PLL_CTRL_REG); devpriv->clock_source = source; - /* it seems to typically take a few hundred microseconds for PLL to lock */ + /* it takes a few hundred microseconds for PLL to lock */ for (i = 0; i < timeout; ++i) { if (ni_readw(dev, NI_M_PLL_STATUS_REG) & NI_M_PLL_STATUS_LOCKED) break; @@ -5247,7 +5267,7 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) if (!dev->attached) return IRQ_NONE; - smp_mb(); /* make sure dev->attached is checked before handler does anything else. */ + smp_mb(); /* make sure dev->attached is checked */ /* lock to avoid race with comedi_poll */ spin_lock_irqsave(&dev->spinlock, flags); -- cgit v0.10.2 From beb1cc1b020e32261fc6c45020501b507ae54d65 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:57 -0700 Subject: staging: comedi: ni_mio_common: multiple assignments should be avoided Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index fa2aad4..f5320f2 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -4478,12 +4478,12 @@ static void caldac_setup(struct comedi_device *dev, struct comedi_subdevice *s) s->n_chan = n_chans; if (diffbits) { - unsigned int *maxdata_list; + unsigned int *maxdata_list = devpriv->caldac_maxdata_list; if (n_chans > MAX_N_CALDACS) dev_err(dev->class_dev, "BUG! MAX_N_CALDACS too small\n"); - s->maxdata_list = maxdata_list = devpriv->caldac_maxdata_list; + s->maxdata_list = maxdata_list; chan = 0; for (i = 0; i < n_dacs; i++) { type = board->caldac[i]; -- cgit v0.10.2 From 73894987d6747f39fe7a08b5b25d33a2883d09e2 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:58 -0700 Subject: staging: comedi: ni_mio_common: fix logical continuations Fix the checkpatch.pl issues: CHECK: Logical continuations should be on the previous line Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index f5320f2..c56a518 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -925,9 +925,8 @@ static int ni_ai_drain_dma(struct comedi_device *dev) if (devpriv->ai_mite_chan) { for (i = 0; i < timeout; i++) { if ((ni_stc_readw(dev, NISTC_AI_STATUS1_REG) & - NISTC_AI_STATUS1_FIFO_E) - && mite_bytes_in_transit(devpriv->ai_mite_chan) == - 0) + NISTC_AI_STATUS1_FIFO_E) && + mite_bytes_in_transit(devpriv->ai_mite_chan) == 0) break; udelay(5); } @@ -1809,8 +1808,8 @@ static void ni_load_channelgain_list(struct comedi_device *dev, return; } if (n_chan == 1 && !devpriv->is_611x && !devpriv->is_6143) { - if (devpriv->changain_state - && devpriv->changain_spec == list[0]) { + if (devpriv->changain_state && + devpriv->changain_spec == list[0]) { /* ready to go. */ return; } @@ -1824,8 +1823,8 @@ static void ni_load_channelgain_list(struct comedi_device *dev, /* Set up Calibration mode if required */ if (devpriv->is_6143) { - if ((list[0] & CR_ALT_SOURCE) - && !devpriv->ai_calib_source_enabled) { + if ((list[0] & CR_ALT_SOURCE) && + !devpriv->ai_calib_source_enabled) { /* Strobe Relay enable bit */ ni_writew(dev, devpriv->ai_calib_source | NI6143_CALIB_CHAN_RELAY_ON, @@ -1835,8 +1834,8 @@ static void ni_load_channelgain_list(struct comedi_device *dev, devpriv->ai_calib_source_enabled = 1; /* Allow relays to change */ msleep_interruptible(100); - } else if (!(list[0] & CR_ALT_SOURCE) - && devpriv->ai_calib_source_enabled) { + } else if (!(list[0] & CR_ALT_SOURCE) && + devpriv->ai_calib_source_enabled) { /* Strobe Relay disable bit */ ni_writew(dev, devpriv->ai_calib_source | NI6143_CALIB_CHAN_RELAY_OFF, -- cgit v0.10.2 From 0b235d5ce4e084535e27e0416449d3c3b0d133ea Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:57:59 -0700 Subject: staging: comedi: ni_mio_common: convert NI_GPCT_SUBDEV to a macro The 'counter_index' is always in range (0 to < NUM_GPCT, which is 2). For aesthetics, convert this inline function into a macro and remove the BUG() which can never occur. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index c56a518..8c2c4f6 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -214,19 +214,7 @@ enum ni_common_subdevices { NI_NUM_SUBDEVICES }; -static inline unsigned int NI_GPCT_SUBDEV(unsigned int counter_index) -{ - switch (counter_index) { - case 0: - return NI_GPCT0_SUBDEV; - case 1: - return NI_GPCT1_SUBDEV; - default: - break; - } - BUG(); - return NI_GPCT0_SUBDEV; -} +#define NI_GPCT_SUBDEV(x) (NI_GPCT0_SUBDEV + (x)) enum timebase_nanoseconds { TIMEBASE_1_NS = 50, -- cgit v0.10.2 From 55f9e7d9d35ac681dc899c9874dec35976c27dda Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:58:00 -0700 Subject: staging: comedi: ni_mio_common: tidy up AO trigger selection The AO subdevice (*cancel), ni_ao_reset(), always sets the private data 'ao_trigger_select' to 0. So when a command is started the 'trigsel' value in ni_ao_cmd_set_trigger() will always start as 0. Remove the unnecessary member from the private data. The (*do_cmdtest) validates that the cmd->start_src will only be TRIG_INT or TRIG_EXT. Refactor ni_ao_cmd_set_trigger() and remove the BUG() which can never occur. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 8c2c4f6..c89bd1f 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -2967,6 +2967,7 @@ static void ni_ao_cmd_set_trigger(struct comedi_device *dev, const struct comedi_cmd *cmd) { struct ni_private *devpriv = dev->private; + unsigned int trigsel; ni_stc_writew(dev, NISTC_RESET_AO_CFG_START, NISTC_RESET_REG); @@ -2980,39 +2981,20 @@ static void ni_ao_cmd_set_trigger(struct comedi_device *dev, } ni_stc_writew(dev, devpriv->ao_mode1, NISTC_AO_MODE1_REG); - { - unsigned int trigsel = devpriv->ao_trigger_select; - - switch (cmd->start_src) { - case TRIG_INT: - case TRIG_NOW: - trigsel &= ~(NISTC_AO_TRIG_START1_POLARITY | - NISTC_AO_TRIG_START1_SEL_MASK); - trigsel |= NISTC_AO_TRIG_START1_EDGE | - NISTC_AO_TRIG_START1_SYNC; - break; - case TRIG_EXT: - trigsel = NISTC_AO_TRIG_START1_SEL( - CR_CHAN(cmd->start_arg) + 1); - if (cmd->start_arg & CR_INVERT) - /* - * 0=active high, 1=active low. - * see daq-stc 3-24 (p186) - */ - trigsel |= NISTC_AO_TRIG_START1_POLARITY; - if (cmd->start_arg & CR_EDGE) - /* 0=edge detection disabled, 1=enabled */ - trigsel |= NISTC_AO_TRIG_START1_EDGE; - break; - default: - BUG(); - break; - } - - devpriv->ao_trigger_select = trigsel; - ni_stc_writew(dev, devpriv->ao_trigger_select, - NISTC_AO_TRIG_SEL_REG); + if (cmd->start_src == TRIG_INT) { + trigsel = NISTC_AO_TRIG_START1_EDGE | + NISTC_AO_TRIG_START1_SYNC; + } else { /* TRIG_EXT */ + trigsel = NISTC_AO_TRIG_START1_SEL(CR_CHAN(cmd->start_arg) + 1); + /* 0=active high, 1=active low. see daq-stc 3-24 (p186) */ + if (cmd->start_arg & CR_INVERT) + trigsel |= NISTC_AO_TRIG_START1_POLARITY; + /* 0=edge detection disabled, 1=enabled */ + if (cmd->start_arg & CR_EDGE) + trigsel |= NISTC_AO_TRIG_START1_EDGE; } + ni_stc_writew(dev, trigsel, NISTC_AO_TRIG_SEL_REG); + /* AO_Delayed_START1 = 0, we do not support delayed start...yet */ /* sync */ @@ -3443,7 +3425,6 @@ static int ni_ao_reset(struct comedi_device *dev, struct comedi_subdevice *s) devpriv->ao_mode3 = NISTC_AO_MODE3_LAST_GATE_DISABLE; else devpriv->ao_mode3 = 0; - devpriv->ao_trigger_select = 0; ni_stc_writew(dev, 0, NISTC_AO_PERSONAL_REG); ni_stc_writew(dev, 0, NISTC_AO_CMD1_REG); diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h index 896bc02..334a2e1 100644 --- a/drivers/staging/comedi/drivers/ni_stc.h +++ b/drivers/staging/comedi/drivers/ni_stc.h @@ -1001,7 +1001,6 @@ struct ni_private { unsigned short ao_mode3; unsigned short ao_cmd1; unsigned short ao_cmd2; - unsigned short ao_trigger_select; struct ni_gpct_device *counter_dev; unsigned short an_trig_etc_reg; -- cgit v0.10.2 From 1392dccbbd70a064864ac698e2897a22a8ce370c Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:58:01 -0700 Subject: staging: comedi: ni_mio_common: tidy up AO scan begin The (*do_cmdtest) validates that the cmd->scan_begin_src will only be TRIG_TIMER or TRIG_EXT. Refactor ni_ao_cmd_set_update() and remove the BUG() which can never occur. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index c89bd1f..1e2e89f 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -3099,8 +3099,9 @@ static void ni_ao_cmd_set_update(struct comedi_device *dev, NISTC_AO_MODE1_UPDATE_SRC_POLARITY ); - switch (cmd->scan_begin_src) { - case TRIG_TIMER: + if (cmd->scan_begin_src == TRIG_TIMER) { + unsigned int trigvar; + devpriv->ao_cmd2 &= ~NISTC_AO_CMD2_BC_GATE_ENA; /* @@ -3131,35 +3132,25 @@ static void ni_ao_cmd_set_update(struct comedi_device *dev, * eseries/ni67xx and tMSeries.h for mseries. */ - { - unsigned int trigvar; - - trigvar = ni_ns_to_timer(dev, cmd->scan_begin_arg, - CMDF_ROUND_NEAREST); + trigvar = ni_ns_to_timer(dev, cmd->scan_begin_arg, + CMDF_ROUND_NEAREST); - /* - * Wait N TB3 ticks after the start trigger before - * clocking(N must be >=2). - */ - /* following line: 2-1 per STC */ - ni_stc_writel(dev, 1, NISTC_AO_UI_LOADA_REG); - ni_stc_writew(dev, NISTC_AO_CMD1_UI_LOAD, - NISTC_AO_CMD1_REG); - /* following line: N-1 per STC */ - ni_stc_writel(dev, trigvar - 1, NISTC_AO_UI_LOADA_REG); - } - break; - case TRIG_EXT: + /* + * Wait N TB3 ticks after the start trigger before + * clocking (N must be >=2). + */ + /* following line: 2-1 per STC */ + ni_stc_writel(dev, 1, NISTC_AO_UI_LOADA_REG); + ni_stc_writew(dev, NISTC_AO_CMD1_UI_LOAD, NISTC_AO_CMD1_REG); + /* following line: N-1 per STC */ + ni_stc_writel(dev, trigvar - 1, NISTC_AO_UI_LOADA_REG); + } else { /* TRIG_EXT */ /* FIXME: assert scan_begin_arg != 0, ret failure otherwise */ devpriv->ao_cmd2 |= NISTC_AO_CMD2_BC_GATE_ENA; devpriv->ao_mode1 |= NISTC_AO_MODE1_UPDATE_SRC( CR_CHAN(cmd->scan_begin_arg)); if (cmd->scan_begin_arg & CR_INVERT) devpriv->ao_mode1 |= NISTC_AO_MODE1_UPDATE_SRC_POLARITY; - break; - default: - BUG(); - break; } ni_stc_writew(dev, devpriv->ao_cmd2, NISTC_AO_CMD2_REG); -- cgit v0.10.2 From 2e2f7b70374bc420d4695675ccc5b35756badef6 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:58:02 -0700 Subject: staging: comedi: ni_mio_common: tidy up ni_gpct_write_register() The 'bits' value passed to this function is properly set by the callers so the BUG_ON() can never occur when writing to the NITIO_G[01]_INT_ENA and NITIO_G01_RESET registers. Remove the BUG_ON() checks. For aesthetic, also remove the static const variables. They don't add any additional clarity. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 1e2e89f..559efb4 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -3993,10 +3993,6 @@ static void ni_gpct_write_register(struct ni_gpct *counter, unsigned int bits, { struct comedi_device *dev = counter->counter_dev->dev; unsigned int stc_register = ni_gpct_to_stc_register(dev, reg); - static const unsigned int gpct_interrupt_a_enable_mask = - NISTC_INTA_ENA_G0_GATE | NISTC_INTA_ENA_G0_TC; - static const unsigned int gpct_interrupt_b_enable_mask = - NISTC_INTB_ENA_G1_GATE | NISTC_INTB_ENA_G1_TC; if (stc_register == 0) return; @@ -4024,18 +4020,15 @@ static void ni_gpct_write_register(struct ni_gpct *counter, unsigned int bits, /* 16 bit registers */ case NITIO_G0_INT_ENA: - BUG_ON(bits & ~gpct_interrupt_a_enable_mask); ni_set_bitfield(dev, stc_register, - gpct_interrupt_a_enable_mask, bits); + NISTC_INTA_ENA_G0_GATE | NISTC_INTA_ENA_G0_TC, + bits); break; case NITIO_G1_INT_ENA: - BUG_ON(bits & ~gpct_interrupt_b_enable_mask); ni_set_bitfield(dev, stc_register, - gpct_interrupt_b_enable_mask, bits); + NISTC_INTB_ENA_G1_GATE | NISTC_INTB_ENA_G1_TC, + bits); break; - case NITIO_G01_RESET: - BUG_ON(bits & ~(NISTC_RESET_G0 | NISTC_RESET_G1)); - /* fall-through */ default: ni_stc_writew(dev, bits, stc_register); } -- cgit v0.10.2 From 8a5b817ff7f6c902b478bae1b58c41b4298ae62e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:58:03 -0700 Subject: staging: comedi: ni_mio_common: usleep_range is preferred over udelay Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 559efb4..8a8ba26 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -962,7 +962,7 @@ static int ni_ao_wait_for_dma_load(struct comedi_device *dev) * If we poll too often, the pci bus activity seems * to slow the dma transfer down. */ - udelay(10); + usleep_range(10, 100); } if (i == timeout) { dev_err(dev->class_dev, "timed out waiting for dma load\n"); @@ -3629,7 +3629,7 @@ static int ni_cdo_inttrig(struct comedi_device *dev, if (ni_readl(dev, NI_M_CDIO_STATUS_REG) & NI_M_CDIO_STATUS_CDO_FIFO_FULL) break; - udelay(10); + usleep_range(10, 100); } if (i == timeout) { dev_err(dev->class_dev, "dma failed to fill cdo fifo!\n"); -- cgit v0.10.2 From 68556ffc95771c55843f1be459d13938fac83f77 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:58:04 -0700 Subject: staging: comedi: ni_mio_common: remove 'fudge_factor_80_to_20Mhz' For aesthetics, remove this local variable to fix the checkpatch.pl issue: CHECK: Avoid CamelCase: Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 8a8ba26..655a1a1 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -4831,7 +4831,6 @@ static int ni_mseries_get_pll_parameters(unsigned int reference_period_ns, * divided by 4 to 20 MHz for most timing clocks */ static const unsigned int target_picosec = 12500; - static const unsigned int fudge_factor_80_to_20Mhz = 4; int best_period_picosec = 0; for (div = 1; div <= NI_M_PLL_MAX_DIVISOR; ++div) { @@ -4851,8 +4850,8 @@ static int ni_mseries_get_pll_parameters(unsigned int reference_period_ns, *freq_divider = best_div; *freq_multiplier = best_mult; - *actual_period_ns = DIV_ROUND_CLOSEST(best_period_picosec * - fudge_factor_80_to_20Mhz, + /* return the actual period (* fudge factor for 80 to 20 MHz) */ + *actual_period_ns = DIV_ROUND_CLOSEST(best_period_picosec * 4, pico_per_nano); return 0; } -- cgit v0.10.2 From b24a3ecd460689b08c5ffd3f735d4228f8bfffc7 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:58:05 -0700 Subject: staging: comedi: ni_mio_common: fix CamelCase in ni_serial_hw_readwrite8() Fix the checkpatch.pl issue: CHECK: Avoid CamelCase: Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 655a1a1..d2b359a 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -3747,7 +3747,7 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev, status1 = ni_stc_readw(dev, NISTC_STATUS1_REG); if (status1 & NISTC_STATUS1_SERIO_IN_PROG) { err = -EBUSY; - goto Error; + goto error; } devpriv->dio_control |= NISTC_DIO_CTRL_HW_SER_START; @@ -3763,7 +3763,7 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev, dev_err(dev->class_dev, "SPI serial I/O didn't finish in time!\n"); err = -ETIME; - goto Error; + goto error; } } @@ -3776,7 +3776,7 @@ static int ni_serial_hw_readwrite8(struct comedi_device *dev, if (data_in) *data_in = ni_stc_readw(dev, NISTC_DIO_SERIAL_IN_REG); -Error: +error: ni_stc_writew(dev, devpriv->dio_control, NISTC_DIO_CTRL_REG); return err; -- cgit v0.10.2 From bbd962206c6002005a827d34d91005cbfbf9dddc Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:58:06 -0700 Subject: staging: comedi: mite.h: rename CHSR_LxERR_mask Fix the checkpatch.pl issue: CHECK: Avoid CamelCase: Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 87534b0..f2099b0 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -329,7 +329,7 @@ enum CHSR_bits { CHSR_END = (1 << 8), CHSR_DRQ1 = (1 << 7), CHSR_DRQ0 = (1 << 6), - CHSR_LxERR_mask = (3 << 4), + CHSR_LERR_MASK = (3 << 4), CHSR_LBERR = (1 << 4), CHSR_LRERR = (2 << 4), CHSR_LOERR = (3 << 4), diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index d2b359a..d331386 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1327,7 +1327,7 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status, if (ai_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY | CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR | - CHSR_SABORT | CHSR_XFERR | CHSR_LxERR_mask)) { + CHSR_SABORT | CHSR_XFERR | CHSR_LERR_MASK)) { dev_err(dev->class_dev, "unknown mite interrupt (ai_mite_status=%08x)\n", ai_mite_status); @@ -1432,7 +1432,7 @@ static void handle_b_interrupt(struct comedi_device *dev, if (ao_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY | CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR | - CHSR_SABORT | CHSR_XFERR | CHSR_LxERR_mask)) { + CHSR_SABORT | CHSR_XFERR | CHSR_LERR_MASK)) { dev_err(dev->class_dev, "unknown mite interrupt (ao_mite_status=%08x)\n", ao_mite_status); -- cgit v0.10.2 From 6f7fa704648e69a295f6b8bcf35538692258fbb3 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 14 Apr 2016 09:58:07 -0700 Subject: staging: comedi: ni_mio_common: introduce NI_STC_DMA_CHAN_SEL() The inline helper ni_stc_dma_channel_select_bitfield() returns the bits needed to select a MITE channel to use for DMA. The MITE code is setup to handle up to 8 channels but in reality only channels 0 to 3 are used by most of the drivers. The PCI-6032E and PCI-6033E boards can also use channels 4 and 5. For aesthetics, convert this inline function into a macro and remove the BUG() which will never occur. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index d331386..081ed3f 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -560,20 +560,13 @@ static inline void ni_set_bitfield(struct comedi_device *dev, int reg, } #ifdef PCIDMA -/* DMA channel setup */ -static inline unsigned int -ni_stc_dma_channel_select_bitfield(unsigned int channel) -{ - if (channel < 4) - return 1 << channel; - if (channel == 4) - return 0x3; - if (channel == 5) - return 0x5; - BUG(); - return 0; -} +/* selects the MITE channel to use for DMA */ +#define NI_STC_DMA_CHAN_SEL(x) (((x) < 4) ? BIT(x) : \ + ((x) == 4) ? 0x3 : \ + ((x) == 5) ? 0x5 : 0x0) + +/* DMA channel setup */ static int ni_request_ai_mite_channel(struct comedi_device *dev) { struct ni_private *devpriv = dev->private; @@ -592,7 +585,7 @@ static int ni_request_ai_mite_channel(struct comedi_device *dev) mite_chan->dir = COMEDI_INPUT; devpriv->ai_mite_chan = mite_chan; - bits = ni_stc_dma_channel_select_bitfield(mite_chan->channel); + bits = NI_STC_DMA_CHAN_SEL(mite_chan->channel); ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, NI_E_DMA_AI_SEL_MASK, NI_E_DMA_AI_SEL(bits)); @@ -618,7 +611,7 @@ static int ni_request_ao_mite_channel(struct comedi_device *dev) mite_chan->dir = COMEDI_OUTPUT; devpriv->ao_mite_chan = mite_chan; - bits = ni_stc_dma_channel_select_bitfield(mite_chan->channel); + bits = NI_STC_DMA_CHAN_SEL(mite_chan->channel); ni_set_bitfield(dev, NI_E_DMA_AI_AO_SEL_REG, NI_E_DMA_AO_SEL_MASK, NI_E_DMA_AO_SEL(bits)); @@ -648,7 +641,7 @@ static int ni_request_gpct_mite_channel(struct comedi_device *dev, mite_chan->dir = direction; ni_tio_set_mite_channel(counter, mite_chan); - bits = ni_stc_dma_channel_select_bitfield(mite_chan->channel); + bits = NI_STC_DMA_CHAN_SEL(mite_chan->channel); ni_set_bitfield(dev, NI_E_DMA_G0_G1_SEL_REG, NI_E_DMA_G0_G1_SEL_MASK(gpct_index), NI_E_DMA_G0_G1_SEL(gpct_index, bits)); @@ -676,12 +669,12 @@ static int ni_request_cdo_mite_channel(struct comedi_device *dev) devpriv->cdo_mite_chan = mite_chan; /* - * XXX just guessing ni_stc_dma_channel_select_bitfield() + * XXX just guessing NI_STC_DMA_CHAN_SEL() * returns the right bits, under the assumption the cdio dma * selection works just like ai/ao/gpct. * Definitely works for dma channels 0 and 1. */ - bits = ni_stc_dma_channel_select_bitfield(mite_chan->channel); + bits = NI_STC_DMA_CHAN_SEL(mite_chan->channel); ni_set_bitfield(dev, NI_M_CDIO_DMA_SEL_REG, NI_M_CDIO_DMA_SEL_CDO_MASK, NI_M_CDIO_DMA_SEL_CDO(bits)); -- cgit v0.10.2 From aac00ea22cd4116959ea297a80ac815f4db0219f Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:29 -0700 Subject: staging: comedi: mite: Prefer 'unsigned int' to bare use of 'unsigned' Fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 8f24702..ceaf1ec 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -82,11 +82,12 @@ static void dump_chip_signature(u32 csigr_bits) mite_csigr_wins(csigr_bits), mite_csigr_iowins(csigr_bits)); } -static unsigned mite_fifo_size(struct mite_struct *mite, unsigned channel) +static unsigned int mite_fifo_size(struct mite_struct *mite, + unsigned int channel) { - unsigned fcr_bits = readl(mite->mite_io_addr + MITE_FCR(channel)); - unsigned empty_count = (fcr_bits >> 16) & 0xff; - unsigned full_count = fcr_bits & 0xff; + unsigned int fcr_bits = readl(mite->mite_io_addr + MITE_FCR(channel)); + unsigned int empty_count = (fcr_bits >> 16) & 0xff; + unsigned int full_count = fcr_bits & 0xff; return empty_count + full_count; } @@ -97,7 +98,7 @@ int mite_setup2(struct comedi_device *dev, unsigned long length; int i; u32 csigr_bits; - unsigned unknown_dma_burst_bits; + unsigned int unknown_dma_burst_bits; pci_set_master(mite->pcidev); @@ -213,11 +214,11 @@ void mite_free_ring(struct mite_dma_descriptor_ring *ring) }; EXPORT_SYMBOL_GPL(mite_free_ring); -struct mite_channel *mite_request_channel_in_range(struct mite_struct *mite, - struct - mite_dma_descriptor_ring - *ring, unsigned min_channel, - unsigned max_channel) +struct mite_channel * +mite_request_channel_in_range(struct mite_struct *mite, + struct mite_dma_descriptor_ring *ring, + unsigned int min_channel, + unsigned int max_channel) { int i; unsigned long flags; @@ -529,7 +530,7 @@ u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_bytes_read_from_memory_ub); -unsigned mite_dma_tcr(struct mite_channel *mite_chan) +unsigned int mite_dma_tcr(struct mite_channel *mite_chan) { struct mite_struct *mite = mite_chan->mite; @@ -540,7 +541,7 @@ EXPORT_SYMBOL_GPL(mite_dma_tcr); void mite_dma_disarm(struct mite_channel *mite_chan) { struct mite_struct *mite = mite_chan->mite; - unsigned chor; + unsigned int chor; /* disarm */ chor = CHOR_ABORT; @@ -632,10 +633,10 @@ int mite_sync_output_dma(struct mite_channel *mite_chan, } EXPORT_SYMBOL_GPL(mite_sync_output_dma); -unsigned mite_get_status(struct mite_channel *mite_chan) +unsigned int mite_get_status(struct mite_channel *mite_chan) { struct mite_struct *mite = mite_chan->mite; - unsigned status; + unsigned int status; unsigned long flags; spin_lock_irqsave(&mite->lock, flags); diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index f2099b0..4d1dece 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -46,7 +46,7 @@ struct mite_dma_descriptor_ring { struct mite_channel { struct mite_struct *mite; - unsigned channel; + unsigned int channel; int dir; int done; struct mite_dma_descriptor_ring *ring; @@ -60,7 +60,7 @@ struct mite_struct { struct mite_channel channels[MAX_MITE_DMA_CHANNELS]; short channel_allocated[MAX_MITE_DMA_CHANNELS]; int num_channels; - unsigned fifo_size; + unsigned int fifo_size; spinlock_t lock; }; @@ -80,7 +80,8 @@ void mite_free_ring(struct mite_dma_descriptor_ring *ring); struct mite_channel * mite_request_channel_in_range(struct mite_struct *mite, struct mite_dma_descriptor_ring *ring, - unsigned min_channel, unsigned max_channel); + unsigned int min_channel, + unsigned int max_channel); static inline struct mite_channel * mite_request_channel(struct mite_struct *mite, struct mite_dma_descriptor_ring *ring) @@ -91,7 +92,7 @@ mite_request_channel(struct mite_struct *mite, void mite_release_channel(struct mite_channel *mite_chan); -unsigned mite_dma_tcr(struct mite_channel *mite_chan); +unsigned int mite_dma_tcr(struct mite_channel *mite_chan); void mite_dma_arm(struct mite_channel *mite_chan); void mite_dma_disarm(struct mite_channel *mite_chan); int mite_sync_input_dma(struct mite_channel *mite_chan, @@ -103,7 +104,7 @@ u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan); u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan); u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan); u32 mite_bytes_in_transit(struct mite_channel *mite_chan); -unsigned mite_get_status(struct mite_channel *mite_chan); +unsigned int mite_get_status(struct mite_channel *mite_chan); int mite_done(struct mite_channel *mite_chan); void mite_prep_dma(struct mite_channel *mite_chan, @@ -151,9 +152,9 @@ enum MITE_IODWBSR_bits { WENAB = 0x80, /* window enable */ }; -static inline unsigned MITE_IODWBSR_1_WSIZE_bits(unsigned size) +static inline unsigned int MITE_IODWBSR_1_WSIZE_bits(unsigned int size) { - unsigned order = 0; + unsigned int order = 0; BUG_ON(size == 0); order = ilog2(size); @@ -291,7 +292,7 @@ static inline int CR_REQS(int source) return (source & 0x7) << 16; }; -static inline int CR_REQSDRQ(unsigned drq_line) +static inline int CR_REQSDRQ(unsigned int drq_line) { /* This also works on m-series when using channels (drq_line) 4 or 5. */ return CR_REQS((drq_line & 0x3) | 0x4); -- cgit v0.10.2 From ace613ee7ca711b5ad8e239679755b74af4f5e38 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:30 -0700 Subject: staging: comedi: mite: remove TOP_OF_PAGE() macro This macro is not used. Remove it. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index ceaf1ec..44a1b36 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -51,8 +51,6 @@ #include "mite.h" -#define TOP_OF_PAGE(x) ((x)|(~(PAGE_MASK))) - struct mite_struct *mite_alloc(struct pci_dev *pcidev) { struct mite_struct *mite; -- cgit v0.10.2 From a2a9d1b4c5c4e7b420a50e263ed202d1648458f8 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:31 -0700 Subject: staging: comedi: mite: remove mite_dma_tcr() This exported function is not used by any of the comedi drivers. The only call point in mite.c is commented out. Remove the unused function and the export. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 44a1b36..f846202 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -285,7 +285,6 @@ void mite_dma_arm(struct mite_channel *mite_chan) writel(chor, mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); mmiowb(); spin_unlock_irqrestore(&mite->lock, flags); - /* mite_dma_tcr(mite, channel); */ } EXPORT_SYMBOL_GPL(mite_dma_arm); @@ -528,14 +527,6 @@ u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_bytes_read_from_memory_ub); -unsigned int mite_dma_tcr(struct mite_channel *mite_chan) -{ - struct mite_struct *mite = mite_chan->mite; - - return readl(mite->mite_io_addr + MITE_TCR(mite_chan->channel)); -} -EXPORT_SYMBOL_GPL(mite_dma_tcr); - void mite_dma_disarm(struct mite_channel *mite_chan) { struct mite_struct *mite = mite_chan->mite; diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 4d1dece..9003476 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -92,7 +92,6 @@ mite_request_channel(struct mite_struct *mite, void mite_release_channel(struct mite_channel *mite_chan); -unsigned int mite_dma_tcr(struct mite_channel *mite_chan); void mite_dma_arm(struct mite_channel *mite_chan); void mite_dma_disarm(struct mite_channel *mite_chan); int mite_sync_input_dma(struct mite_channel *mite_chan, -- cgit v0.10.2 From 0d9bfc24125267a41912e337c1471fc2d5a17611 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:32 -0700 Subject: staging: comedi: mite: don't export internal functions The functions that get the number of bytes written to and read from memory are only used internally by the mite driver when syncing the dma channel. Make them static and remove the exports. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index f846202..61ac527 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -488,44 +488,40 @@ u32 mite_bytes_in_transit(struct mite_channel *mite_chan) EXPORT_SYMBOL_GPL(mite_bytes_in_transit); /* returns lower bound for number of bytes transferred from device to memory */ -u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan) +static u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan) { u32 device_byte_count; device_byte_count = mite_device_bytes_transferred(mite_chan); return device_byte_count - mite_bytes_in_transit(mite_chan); } -EXPORT_SYMBOL_GPL(mite_bytes_written_to_memory_lb); /* returns upper bound for number of bytes transferred from device to memory */ -u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan) +static u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan) { u32 in_transit_count; in_transit_count = mite_bytes_in_transit(mite_chan); return mite_device_bytes_transferred(mite_chan) - in_transit_count; } -EXPORT_SYMBOL_GPL(mite_bytes_written_to_memory_ub); /* returns lower bound for number of bytes read from memory to device */ -u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan) +static u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan) { u32 device_byte_count; device_byte_count = mite_device_bytes_transferred(mite_chan); return device_byte_count + mite_bytes_in_transit(mite_chan); } -EXPORT_SYMBOL_GPL(mite_bytes_read_from_memory_lb); /* returns upper bound for number of bytes read from memory to device */ -u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan) +static u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan) { u32 in_transit_count; in_transit_count = mite_bytes_in_transit(mite_chan); return mite_device_bytes_transferred(mite_chan) + in_transit_count; } -EXPORT_SYMBOL_GPL(mite_bytes_read_from_memory_ub); void mite_dma_disarm(struct mite_channel *mite_chan) { diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 9003476..583c60f 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -98,10 +98,6 @@ int mite_sync_input_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s); int mite_sync_output_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s); -u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan); -u32 mite_bytes_written_to_memory_ub(struct mite_channel *mite_chan); -u32 mite_bytes_read_from_memory_lb(struct mite_channel *mite_chan); -u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan); u32 mite_bytes_in_transit(struct mite_channel *mite_chan); unsigned int mite_get_status(struct mite_channel *mite_chan); int mite_done(struct mite_channel *mite_chan); -- cgit v0.10.2 From 0db6624ae0d6aa30c6ed2fee262edf04bba3962e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:33 -0700 Subject: staging: comedi: mite: remove mite_struct member 'mite_phys_addr' This member of mite_struct is set but never used. Just remove it. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 61ac527..a795842 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -106,7 +106,6 @@ int mite_setup2(struct comedi_device *dev, "Failed to remap mite io memory address\n"); return -ENOMEM; } - mite->mite_phys_addr = pci_resource_start(mite->pcidev, 0); dev->mmio = pci_ioremap_bar(mite->pcidev, 1); if (!dev->mmio) { diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 583c60f..95d3c13 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -54,7 +54,6 @@ struct mite_channel { struct mite_struct { struct pci_dev *pcidev; - resource_size_t mite_phys_addr; void __iomem *mite_io_addr; resource_size_t daq_phys_addr; struct mite_channel channels[MAX_MITE_DMA_CHANNELS]; -- cgit v0.10.2 From ef81f55b07c2efe80d0ea80527426ef319a4a5e7 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:34 -0700 Subject: staging: comedi: mite: remove mite_struct member 'daq_phys_addr' This member of mite_struct is only used to map the mite I/O window. For aesthetics, remove it and use a local variable instead. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index a795842..6f31796 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -93,6 +93,7 @@ static unsigned int mite_fifo_size(struct mite_struct *mite, int mite_setup2(struct comedi_device *dev, struct mite_struct *mite, bool use_win1) { + resource_size_t daq_phys_addr; unsigned long length; int i; u32 csigr_bits; @@ -113,19 +114,19 @@ int mite_setup2(struct comedi_device *dev, "Failed to remap daq io memory address\n"); return -ENOMEM; } - mite->daq_phys_addr = pci_resource_start(mite->pcidev, 1); + daq_phys_addr = pci_resource_start(mite->pcidev, 1); length = pci_resource_len(mite->pcidev, 1); if (use_win1) { writel(0, mite->mite_io_addr + MITE_IODWBSR); dev_info(dev->class_dev, "using I/O Window Base Size register 1\n"); - writel(mite->daq_phys_addr | WENAB | + writel(daq_phys_addr | WENAB | MITE_IODWBSR_1_WSIZE_bits(length), mite->mite_io_addr + MITE_IODWBSR_1); writel(0, mite->mite_io_addr + MITE_IODWCR_1); } else { - writel(mite->daq_phys_addr | WENAB, + writel(daq_phys_addr | WENAB, mite->mite_io_addr + MITE_IODWBSR); } /* diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 95d3c13..3948299 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -55,7 +55,6 @@ struct mite_channel { struct mite_struct { struct pci_dev *pcidev; void __iomem *mite_io_addr; - resource_size_t daq_phys_addr; struct mite_channel channels[MAX_MITE_DMA_CHANNELS]; short channel_allocated[MAX_MITE_DMA_CHANNELS]; int num_channels; diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c index 231e37d..4028b6f 100644 --- a/drivers/staging/comedi/drivers/ni_pcimio.c +++ b/drivers/staging/comedi/drivers/ni_pcimio.c @@ -1061,6 +1061,7 @@ static int pcimio_dio_change(struct comedi_device *dev, static void m_series_init_eeprom_buffer(struct comedi_device *dev) { struct ni_private *devpriv = dev->private; + resource_size_t daq_phys_addr; static const int Start_Cal_EEPROM = 0x400; static const unsigned window_size = 10; static const int serial_number_eeprom_offset = 0x4; @@ -1070,11 +1071,14 @@ static void m_series_init_eeprom_buffer(struct comedi_device *dev) unsigned old_iodwcr1_bits; int i; + /* IO Window 1 needs to be temporarily mapped to read the eeprom */ + daq_phys_addr = pci_resource_start(devpriv->mite->pcidev, 1); + old_iodwbsr_bits = readl(devpriv->mite->mite_io_addr + MITE_IODWBSR); old_iodwbsr1_bits = readl(devpriv->mite->mite_io_addr + MITE_IODWBSR_1); old_iodwcr1_bits = readl(devpriv->mite->mite_io_addr + MITE_IODWCR_1); writel(0x0, devpriv->mite->mite_io_addr + MITE_IODWBSR); - writel(((0x80 | window_size) | devpriv->mite->daq_phys_addr), + writel(((0x80 | window_size) | daq_phys_addr), devpriv->mite->mite_io_addr + MITE_IODWBSR_1); writel(0x1 | old_iodwcr1_bits, devpriv->mite->mite_io_addr + MITE_IODWCR_1); -- cgit v0.10.2 From eecbadef12d1e9781d48f31875fa9f5f79194a65 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:35 -0700 Subject: staging: comedi: ni_pcidio: remove redundant mite disarm/reset The mite_release_channel() will disarm and reset the mite channel. Remove the redundant calls in ni_pcidio_release_di_mite_channel(). Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index 7112c3f..c044c8b 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -324,8 +324,6 @@ static void ni_pcidio_release_di_mite_channel(struct comedi_device *dev) spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->di_mite_chan) { - mite_dma_disarm(devpriv->di_mite_chan); - mite_dma_reset(devpriv->di_mite_chan); mite_release_channel(devpriv->di_mite_chan); devpriv->di_mite_chan = NULL; writeb(primary_DMAChannel_bits(0) | -- cgit v0.10.2 From 96f31530006492b2c753311431acf71df88b0cdd Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:36 -0700 Subject: staging: comedi: mite: don't expose mite_dma_reset() This function is only called by the mite driver. Remove the inline function from the header and make it static in the driver. Use the function in mite_prep_dma() instead of duplicating the code. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 6f31796..2f24fae 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -51,6 +51,12 @@ #include "mite.h" +static void mite_dma_reset(struct mite_channel *mite_chan) +{ + writel(CHOR_DMARESET | CHOR_FRESET, + mite_chan->mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); +} + struct mite_struct *mite_alloc(struct pci_dev *pcidev) { struct mite_struct *mite; @@ -387,12 +393,10 @@ EXPORT_SYMBOL_GPL(mite_init_ring_descriptors); void mite_prep_dma(struct mite_channel *mite_chan, unsigned int num_device_bits, unsigned int num_memory_bits) { - unsigned int chor, chcr, mcr, dcr, lkcr; + unsigned int chcr, mcr, dcr, lkcr; struct mite_struct *mite = mite_chan->mite; - /* reset DMA and FIFO */ - chor = CHOR_DMARESET | CHOR_FRESET; - writel(chor, mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); + mite_dma_reset(mite_chan); /* short link chaining mode */ chcr = CHCR_SET_DMA_IE | CHCR_LINKSHORT | CHCR_SET_DONE_IE | diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 3948299..f168ece 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -337,10 +337,4 @@ enum CHSR_bits { CHSR_DOERR = (3 << 0), }; -static inline void mite_dma_reset(struct mite_channel *mite_chan) -{ - writel(CHOR_DMARESET | CHOR_FRESET, - mite_chan->mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); -}; - #endif -- cgit v0.10.2 From 4d88096df9ca49b71381eda90aa770c6db237f54 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:37 -0700 Subject: staging: comedi: mite: introduce mite_ack_linkc() Introduce a helper function to handle the ack of a LINKC interrupt. Tidy up the drivers that use the new helper. The extra check for CHSR_INT in the ni_pcidio driver is not necessary. This bit will be set if any of the interrupt sources, including CHSR_LINKC, have generated an interrupt. Remove the extra check. The mite_get_status() function is now only used by the mite driver. Make it static and remove the export. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 2f24fae..2dcfa76 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -622,7 +622,7 @@ int mite_sync_output_dma(struct mite_channel *mite_chan, } EXPORT_SYMBOL_GPL(mite_sync_output_dma); -unsigned int mite_get_status(struct mite_channel *mite_chan) +static unsigned int mite_get_status(struct mite_channel *mite_chan) { struct mite_struct *mite = mite_chan->mite; unsigned int status; @@ -639,7 +639,20 @@ unsigned int mite_get_status(struct mite_channel *mite_chan) spin_unlock_irqrestore(&mite->lock, flags); return status; } -EXPORT_SYMBOL_GPL(mite_get_status); + +unsigned int mite_ack_linkc(struct mite_channel *mite_chan) +{ + struct mite_struct *mite = mite_chan->mite; + unsigned int status; + + status = mite_get_status(mite_chan); + if (status & CHSR_LINKC) + writel(CHOR_CLRLC, + mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); + + return status; +} +EXPORT_SYMBOL_GPL(mite_ack_linkc); int mite_done(struct mite_channel *mite_chan) { diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index f168ece..406e904 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -97,7 +97,7 @@ int mite_sync_input_dma(struct mite_channel *mite_chan, int mite_sync_output_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s); u32 mite_bytes_in_transit(struct mite_channel *mite_chan); -unsigned int mite_get_status(struct mite_channel *mite_chan); +unsigned int mite_ack_linkc(struct mite_channel *mite_chan); int mite_done(struct mite_channel *mite_chan); void mite_prep_dma(struct mite_channel *mite_chan, diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 081ed3f..7f7296e 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -3697,13 +3697,7 @@ static void handle_cdio_interrupt(struct comedi_device *dev) spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->cdo_mite_chan) { - unsigned int cdo_mite_status = - mite_get_status(devpriv->cdo_mite_chan); - if (cdo_mite_status & CHSR_LINKC) { - writel(CHOR_CLRLC, - devpriv->mite->mite_io_addr + - MITE_CHOR(devpriv->cdo_mite_chan->channel)); - } + mite_ack_linkc(devpriv->cdo_mite_chan); mite_sync_output_dma(devpriv->cdo_mite_chan, s); } spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); @@ -5222,22 +5216,10 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) unsigned long flags_too; spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too); - if (devpriv->ai_mite_chan) { - ai_mite_status = mite_get_status(devpriv->ai_mite_chan); - if (ai_mite_status & CHSR_LINKC) - writel(CHOR_CLRLC, - devpriv->mite->mite_io_addr + - MITE_CHOR(devpriv-> - ai_mite_chan->channel)); - } - if (devpriv->ao_mite_chan) { - ao_mite_status = mite_get_status(devpriv->ao_mite_chan); - if (ao_mite_status & CHSR_LINKC) - writel(CHOR_CLRLC, - devpriv->mite->mite_io_addr + - MITE_CHOR(devpriv-> - ao_mite_chan->channel)); - } + if (devpriv->ai_mite_chan) + ai_mite_status = mite_ack_linkc(devpriv->ai_mite_chan); + if (devpriv->ao_mite_chan) + ao_mite_status = mite_ack_linkc(devpriv->ao_mite_chan); spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags_too); } #endif diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index c044c8b..b67358d 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -381,12 +381,10 @@ static irqreturn_t nidio_interrupt(int irq, void *d) struct nidio96_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; struct comedi_async *async = s->async; - struct mite_struct *mite = devpriv->mite; unsigned int auxdata; int flags; int status; int work = 0; - unsigned int m_status = 0; /* interrupcions parasites */ if (!dev->attached) { @@ -401,14 +399,10 @@ static irqreturn_t nidio_interrupt(int irq, void *d) flags = readb(dev->mmio + Group_1_Flags); spin_lock(&devpriv->mite_channel_lock); - if (devpriv->di_mite_chan) - m_status = mite_get_status(devpriv->di_mite_chan); + if (devpriv->di_mite_chan) { + unsigned int m_status = mite_ack_linkc(devpriv->di_mite_chan); - if (m_status & CHSR_INT) { if (m_status & CHSR_LINKC) { - writel(CHOR_CLRLC, - mite->mite_io_addr + - MITE_CHOR(devpriv->di_mite_chan->channel)); mite_sync_input_dma(devpriv->di_mite_chan, s); /* XXX need to byteswap */ } diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index 3c3f543..dc0b0f3 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -400,7 +400,6 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, struct comedi_subdevice *s) { unsigned int cidx = counter->counter_index; - unsigned int gpct_mite_status; unsigned long flags; int gate_error; int tc_error; @@ -429,16 +428,10 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, break; } spin_lock_irqsave(&counter->lock, flags); - if (!counter->mite_chan) { - spin_unlock_irqrestore(&counter->lock, flags); - return; + if (counter->mite_chan) { + mite_ack_linkc(counter->mite_chan); + mite_sync_input_dma(counter->mite_chan, s); } - gpct_mite_status = mite_get_status(counter->mite_chan); - if (gpct_mite_status & CHSR_LINKC) - writel(CHOR_CLRLC, - counter->mite_chan->mite->mite_io_addr + - MITE_CHOR(counter->mite_chan->channel)); - mite_sync_input_dma(counter->mite_chan, s); spin_unlock_irqrestore(&counter->lock, flags); } EXPORT_SYMBOL_GPL(ni_tio_handle_interrupt); -- cgit v0.10.2 From 33b0b6913d1304407f71a6a92ef1ad9e064cdf01 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:38 -0700 Subject: staging: comedi: mite: don't expose unnecessary register/bit info Most of the mite registers are only accessed by the mite driver. There is no reason to expose the register/bit info. Remove this info from the header. For aesthetics, convert the bit info enums into defines and use the BIT() macro to define them. Tidy up the inline functions for the retry limit and drq reqs bits in the config registers. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 2dcfa76..748f3ab 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -46,11 +46,142 @@ #include #include +#include #include "../comedi_pci.h" #include "mite.h" +/* + * Mite registers + */ +#define MITE_UNKNOWN_DMA_BURST_REG 0x28 +#define UNKNOWN_DMA_BURST_ENABLE_BITS 0x600 + +#define MITE_PCI_CONFIG_OFFSET 0x300 +#define MITE_CSIGR 0x460 /* chip signature */ +#define CSIGR_TO_IOWINS(x) (((x) >> 29) & 0x7) +#define CSIGR_TO_WINS(x) (((x) >> 24) & 0x1f) +#define CSIGR_TO_WPDEP(x) (((x) >> 20) & 0x7) +#define CSIGR_TO_DMAC(x) (((x) >> 16) & 0xf) +#define CSIGR_TO_IMODE(x) (((x) >> 12) & 0x3) /* pci=0x3 */ +#define CSIGR_TO_MMODE(x) (((x) >> 8) & 0x3) /* minimite=1 */ +#define CSIGR_TO_TYPE(x) (((x) >> 4) & 0xf) /* mite=0, minimite=1 */ +#define CSIGR_TO_VER(x) (((x) >> 0) & 0xf) + +#define MITE_CHAN(x) (0x500 + 0x100 * (x)) +#define MITE_CHOR(x) (0x00 + MITE_CHAN(x)) /* channel operation */ +#define CHOR_DMARESET BIT(31) +#define CHOR_SET_SEND_TC BIT(11) +#define CHOR_CLR_SEND_TC BIT(10) +#define CHOR_SET_LPAUSE BIT(9) +#define CHOR_CLR_LPAUSE BIT(8) +#define CHOR_CLRDONE BIT(7) +#define CHOR_CLRRB BIT(6) +#define CHOR_CLRLC BIT(5) +#define CHOR_FRESET BIT(4) +#define CHOR_ABORT BIT(3) /* stop without emptying fifo */ +#define CHOR_STOP BIT(2) /* stop after emptying fifo */ +#define CHOR_CONT BIT(1) +#define CHOR_START BIT(0) +#define MITE_CHCR(x) (0x04 + MITE_CHAN(x)) /* channel control */ +#define CHCR_SET_DMA_IE BIT(31) +#define CHCR_CLR_DMA_IE BIT(30) +#define CHCR_SET_LINKP_IE BIT(29) +#define CHCR_CLR_LINKP_IE BIT(28) +#define CHCR_SET_SAR_IE BIT(27) +#define CHCR_CLR_SAR_IE BIT(26) +#define CHCR_SET_DONE_IE BIT(25) +#define CHCR_CLR_DONE_IE BIT(24) +#define CHCR_SET_MRDY_IE BIT(23) +#define CHCR_CLR_MRDY_IE BIT(22) +#define CHCR_SET_DRDY_IE BIT(21) +#define CHCR_CLR_DRDY_IE BIT(20) +#define CHCR_SET_LC_IE BIT(19) +#define CHCR_CLR_LC_IE BIT(18) +#define CHCR_SET_CONT_RB_IE BIT(17) +#define CHCR_CLR_CONT_RB_IE BIT(16) +#define CHCR_FIFO(x) (((x) & 0x1) << 15) +#define CHCR_FIFODIS CHCR_FIFO(1) +#define CHCR_FIFO_ON CHCR_FIFO(0) +#define CHCR_BURST(x) (((x) & 0x1) << 14) +#define CHCR_BURSTEN CHCR_BURST(1) +#define CHCR_NO_BURSTEN CHCR_BURST(0) +#define CHCR_BYTE_SWAP_DEVICE BIT(6) +#define CHCR_BYTE_SWAP_MEMORY BIT(4) +#define CHCR_DIR(x) (((x) & 0x1) << 3) +#define CHCR_DEV_TO_MEM CHCR_DIR(1) +#define CHCR_MEM_TO_DEV CHCR_DIR(0) +#define CHCR_MODE(x) (((x) & 0x7) << 0) +#define CHCR_NORMAL CHCR_MODE(0) +#define CHCR_CONTINUE CHCR_MODE(1) +#define CHCR_RINGBUFF CHCR_MODE(2) +#define CHCR_LINKSHORT CHCR_MODE(4) +#define CHCR_LINKLONG CHCR_MODE(5) +#define MITE_TCR(x) (0x08 + MITE_CHAN(x)) /* transfer count */ +#define MITE_MCR(x) (0x0c + MITE_CHAN(x)) /* memory config */ +#define MITE_MAR(x) (0x10 + MITE_CHAN(x)) /* memory address */ +#define MITE_DCR(x) (0x14 + MITE_CHAN(x)) /* device config */ +#define DCR_NORMAL BIT(29) +#define MITE_DAR(x) (0x18 + MITE_CHAN(x)) /* device address */ +#define MITE_LKCR(x) (0x1c + MITE_CHAN(x)) /* link config */ +#define MITE_LKAR(x) (0x20 + MITE_CHAN(x)) /* link address */ +#define MITE_LLKAR(x) (0x24 + MITE_CHAN(x)) /* see tnt5002 manual */ +#define MITE_BAR(x) (0x28 + MITE_CHAN(x)) /* base address */ +#define MITE_BCR(x) (0x2c + MITE_CHAN(x)) /* base count */ +#define MITE_SAR(x) (0x30 + MITE_CHAN(x)) /* ? address */ +#define MITE_WSCR(x) (0x34 + MITE_CHAN(x)) /* ? */ +#define MITE_WSER(x) (0x38 + MITE_CHAN(x)) /* ? */ +#define MITE_CHSR(x) (0x3c + MITE_CHAN(x)) /* channel status */ +#define MITE_FCR(x) (0x40 + MITE_CHAN(x)) /* fifo count */ + +/* common bits for the memory/device/link config registers */ +#define CR_RL(x) (((x) & 0x7) << 21) +#define CR_REQS(x) (((x) & 0x7) << 16) +#define CR_REQS_MASK CR_REQS(7) +#define CR_ASEQ(x) (((x) & 0x3) << 10) +#define CR_ASEQDONT CR_ASEQ(0) +#define CR_ASEQUP CR_ASEQ(1) +#define CR_ASEQDOWN CR_ASEQ(2) +#define CR_ASEQ_MASK CR_ASEQ(3) +#define CR_PSIZE(x) (((x) & 0x3) << 8) +#define CR_PSIZE8 CR_PSIZE(1) +#define CR_PSIZE16 CR_PSIZE(2) +#define CR_PSIZE32 CR_PSIZE(3) +#define CR_PORT(x) (((x) & 0x3) << 6) +#define CR_PORTCPU CR_PORT(0) +#define CR_PORTIO CR_PORT(1) +#define CR_PORTVXI CR_PORT(2) +#define CR_PORTMXI CR_PORT(3) +#define CR_AMDEVICE BIT(0) + +static unsigned int MITE_IODWBSR_1_WSIZE_bits(unsigned int size) +{ + unsigned int order = 0; + + BUG_ON(size == 0); + order = ilog2(size); + BUG_ON(order < 1); + return (order - 1) & 0x1f; +} + +static unsigned int mite_retry_limit(unsigned int retry_limit) +{ + unsigned int value = 0; + + if (retry_limit) + value = 1 + ilog2(retry_limit); + if (value > 0x7) + value = 0x7; + return CR_RL(value); +} + +static unsigned int mite_drq_reqs(unsigned int drq_line) +{ + /* This also works on m-series when using channels (drq_line) 4 or 5. */ + return CR_REQS((drq_line & 0x3) | 0x4); +} + static void mite_dma_reset(struct mite_channel *mite_chan) { writel(CHOR_DMARESET | CHOR_FRESET, @@ -78,12 +209,19 @@ EXPORT_SYMBOL_GPL(mite_alloc); static void dump_chip_signature(u32 csigr_bits) { + unsigned int wpdep; + + /* get the wpdep bits and convert it to the write port fifo depth */ + wpdep = CSIGR_TO_WPDEP(csigr_bits); + if (wpdep) + wpdep = BIT(wpdep); + pr_info("version = %i, type = %i, mite mode = %i, interface mode = %i\n", - mite_csigr_version(csigr_bits), mite_csigr_type(csigr_bits), - mite_csigr_mmode(csigr_bits), mite_csigr_imode(csigr_bits)); + CSIGR_TO_VER(csigr_bits), CSIGR_TO_TYPE(csigr_bits), + CSIGR_TO_MMODE(csigr_bits), CSIGR_TO_IMODE(csigr_bits)); pr_info("num channels = %i, write post fifo depth = %i, wins = %i, iowins = %i\n", - mite_csigr_dmac(csigr_bits), mite_csigr_wpdep(csigr_bits), - mite_csigr_wins(csigr_bits), mite_csigr_iowins(csigr_bits)); + CSIGR_TO_DMAC(csigr_bits), wpdep, + CSIGR_TO_WINS(csigr_bits), CSIGR_TO_IOWINS(csigr_bits)); } static unsigned int mite_fifo_size(struct mite_struct *mite, @@ -141,6 +279,10 @@ int mite_setup2(struct comedi_device *dev, * of 0x61f and bursts worked. 6281 powered up with register value of * 0x1f and bursts didn't work. The NI windows driver reads the * register, then does a bitwise-or of 0x600 with it and writes it back. + * + * The bits 0x90180700 in MITE_UNKNOWN_DMA_BURST_REG can be + * written and read back. The bits 0x1f always read as 1. + * The rest always read as zero. */ unknown_dma_burst_bits = readl(mite->mite_io_addr + MITE_UNKNOWN_DMA_BURST_REG); @@ -149,7 +291,7 @@ int mite_setup2(struct comedi_device *dev, mite->mite_io_addr + MITE_UNKNOWN_DMA_BURST_REG); csigr_bits = readl(mite->mite_io_addr + MITE_CSIGR); - mite->num_channels = mite_csigr_dmac(csigr_bits); + mite->num_channels = CSIGR_TO_DMAC(csigr_bits); if (mite->num_channels > MAX_MITE_DMA_CHANNELS) { dev_warn(dev->class_dev, "mite: bug? chip claims to have %i dma channels. Setting to %i.\n", @@ -426,7 +568,7 @@ void mite_prep_dma(struct mite_channel *mite_chan, writel(chcr, mite->mite_io_addr + MITE_CHCR(mite_chan->channel)); /* to/from memory */ - mcr = CR_RL(64) | CR_ASEQUP; + mcr = mite_retry_limit(64) | CR_ASEQUP; switch (num_memory_bits) { case 8: mcr |= CR_PSIZE8; @@ -444,8 +586,8 @@ void mite_prep_dma(struct mite_channel *mite_chan, writel(mcr, mite->mite_io_addr + MITE_MCR(mite_chan->channel)); /* from/to device */ - dcr = CR_RL(64) | CR_ASEQUP; - dcr |= CR_PORTIO | CR_AMDEVICE | CR_REQSDRQ(mite_chan->channel); + dcr = mite_retry_limit(64) | CR_ASEQUP; + dcr |= CR_PORTIO | CR_AMDEVICE | mite_drq_reqs(mite_chan->channel); switch (num_device_bits) { case 8: dcr |= CR_PSIZE8; @@ -466,7 +608,7 @@ void mite_prep_dma(struct mite_channel *mite_chan, writel(0, mite->mite_io_addr + MITE_DAR(mite_chan->channel)); /* the link is 32bits */ - lkcr = CR_RL(64) | CR_ASEQUP | CR_PSIZE32; + lkcr = mite_retry_limit(64) | CR_ASEQUP | CR_PSIZE32; writel(lkcr, mite->mite_io_addr + MITE_LKCR(mite_chan->channel)); /* starting address for link chaining */ diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 406e904..8d20385 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -19,8 +19,6 @@ #ifndef _MITE_H_ #define _MITE_H_ -#include -#include #include #define MAX_MITE_DMA_CHANNELS 8 @@ -109,199 +107,15 @@ int mite_init_ring_descriptors(struct mite_dma_descriptor_ring *ring, unsigned int nbytes); enum mite_registers { - /* - * The bits 0x90180700 in MITE_UNKNOWN_DMA_BURST_REG can be - * written and read back. The bits 0x1f always read as 1. - * The rest always read as zero. - */ - MITE_UNKNOWN_DMA_BURST_REG = 0x28, MITE_IODWBSR = 0xc0, /* IO Device Window Base Size Register */ MITE_IODWBSR_1 = 0xc4, /* IO Device Window Base Size Register 1 */ MITE_IODWCR_1 = 0xf4, - MITE_PCI_CONFIG_OFFSET = 0x300, - MITE_CSIGR = 0x460 /* chip signature */ }; -#define MITE_CHAN(x) (0x500 + 0x100 * (x)) -#define MITE_CHOR(x) (0x00 + MITE_CHAN(x)) /* channel operation */ -#define MITE_CHCR(x) (0x04 + MITE_CHAN(x)) /* channel control */ -#define MITE_TCR(x) (0x08 + MITE_CHAN(x)) /* transfer count */ -#define MITE_MCR(x) (0x0c + MITE_CHAN(x)) /* memory configuration */ -#define MITE_MAR(x) (0x10 + MITE_CHAN(x)) /* memory address */ -#define MITE_DCR(x) (0x14 + MITE_CHAN(x)) /* device configuration */ -#define MITE_DAR(x) (0x18 + MITE_CHAN(x)) /* device address */ -#define MITE_LKCR(x) (0x1c + MITE_CHAN(x)) /* link configuration */ -#define MITE_LKAR(x) (0x20 + MITE_CHAN(x)) /* link address */ -#define MITE_LLKAR(x) (0x24 + MITE_CHAN(x)) /* see tnt5002 manual */ -#define MITE_BAR(x) (0x28 + MITE_CHAN(x)) /* base address */ -#define MITE_BCR(x) (0x2c + MITE_CHAN(x)) /* base count */ -#define MITE_SAR(x) (0x30 + MITE_CHAN(x)) /* ? address */ -#define MITE_WSCR(x) (0x34 + MITE_CHAN(x)) /* ? */ -#define MITE_WSER(x) (0x38 + MITE_CHAN(x)) /* ? */ -#define MITE_CHSR(x) (0x3c + MITE_CHAN(x)) /* channel status */ -#define MITE_FCR(x) (0x40 + MITE_CHAN(x)) /* fifo count */ - enum MITE_IODWBSR_bits { WENAB = 0x80, /* window enable */ }; -static inline unsigned int MITE_IODWBSR_1_WSIZE_bits(unsigned int size) -{ - unsigned int order = 0; - - BUG_ON(size == 0); - order = ilog2(size); - BUG_ON(order < 1); - return (order - 1) & 0x1f; -} - -enum MITE_UNKNOWN_DMA_BURST_bits { - UNKNOWN_DMA_BURST_ENABLE_BITS = 0x600 -}; - -static inline int mite_csigr_version(u32 csigr_bits) -{ - return csigr_bits & 0xf; -}; - -static inline int mite_csigr_type(u32 csigr_bits) -{ /* original mite = 0, minimite = 1 */ - return (csigr_bits >> 4) & 0xf; -}; - -static inline int mite_csigr_mmode(u32 csigr_bits) -{ /* mite mode, minimite = 1 */ - return (csigr_bits >> 8) & 0x3; -}; - -static inline int mite_csigr_imode(u32 csigr_bits) -{ /* cpu port interface mode, pci = 0x3 */ - return (csigr_bits >> 12) & 0x3; -}; - -static inline int mite_csigr_dmac(u32 csigr_bits) -{ /* number of dma channels */ - return (csigr_bits >> 16) & 0xf; -}; - -static inline int mite_csigr_wpdep(u32 csigr_bits) -{ /* write post fifo depth */ - unsigned int wpdep_bits = (csigr_bits >> 20) & 0x7; - - return (wpdep_bits) ? (1 << (wpdep_bits - 1)) : 0; -} - -static inline int mite_csigr_wins(u32 csigr_bits) -{ - return (csigr_bits >> 24) & 0x1f; -}; - -static inline int mite_csigr_iowins(u32 csigr_bits) -{ /* number of io windows */ - return (csigr_bits >> 29) & 0x7; -}; - -enum MITE_MCR_bits { - MCRPON = 0, -}; - -enum MITE_DCR_bits { - DCR_NORMAL = (1 << 29), - DCRPON = 0, -}; - -enum MITE_CHOR_bits { - CHOR_DMARESET = (1 << 31), - CHOR_SET_SEND_TC = (1 << 11), - CHOR_CLR_SEND_TC = (1 << 10), - CHOR_SET_LPAUSE = (1 << 9), - CHOR_CLR_LPAUSE = (1 << 8), - CHOR_CLRDONE = (1 << 7), - CHOR_CLRRB = (1 << 6), - CHOR_CLRLC = (1 << 5), - CHOR_FRESET = (1 << 4), - CHOR_ABORT = (1 << 3), /* stop without emptying fifo */ - CHOR_STOP = (1 << 2), /* stop after emptying fifo */ - CHOR_CONT = (1 << 1), - CHOR_START = (1 << 0), - CHOR_PON = (CHOR_CLR_SEND_TC | CHOR_CLR_LPAUSE), -}; - -enum MITE_CHCR_bits { - CHCR_SET_DMA_IE = (1 << 31), - CHCR_CLR_DMA_IE = (1 << 30), - CHCR_SET_LINKP_IE = (1 << 29), - CHCR_CLR_LINKP_IE = (1 << 28), - CHCR_SET_SAR_IE = (1 << 27), - CHCR_CLR_SAR_IE = (1 << 26), - CHCR_SET_DONE_IE = (1 << 25), - CHCR_CLR_DONE_IE = (1 << 24), - CHCR_SET_MRDY_IE = (1 << 23), - CHCR_CLR_MRDY_IE = (1 << 22), - CHCR_SET_DRDY_IE = (1 << 21), - CHCR_CLR_DRDY_IE = (1 << 20), - CHCR_SET_LC_IE = (1 << 19), - CHCR_CLR_LC_IE = (1 << 18), - CHCR_SET_CONT_RB_IE = (1 << 17), - CHCR_CLR_CONT_RB_IE = (1 << 16), - CHCR_FIFODIS = (1 << 15), - CHCR_FIFO_ON = 0, - CHCR_BURSTEN = (1 << 14), - CHCR_NO_BURSTEN = 0, - CHCR_BYTE_SWAP_DEVICE = (1 << 6), - CHCR_BYTE_SWAP_MEMORY = (1 << 4), - CHCR_DIR = (1 << 3), - CHCR_DEV_TO_MEM = CHCR_DIR, - CHCR_MEM_TO_DEV = 0, - CHCR_NORMAL = (0 << 0), - CHCR_CONTINUE = (1 << 0), - CHCR_RINGBUFF = (2 << 0), - CHCR_LINKSHORT = (4 << 0), - CHCR_LINKLONG = (5 << 0), - CHCRPON = - (CHCR_CLR_DMA_IE | CHCR_CLR_LINKP_IE | CHCR_CLR_SAR_IE | - CHCR_CLR_DONE_IE | CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE | - CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE), -}; - -enum ConfigRegister_bits { - CR_REQS_MASK = 0x7 << 16, - CR_ASEQDONT = 0x0 << 10, - CR_ASEQUP = 0x1 << 10, - CR_ASEQDOWN = 0x2 << 10, - CR_ASEQ_MASK = 0x3 << 10, - CR_PSIZE8 = (1 << 8), - CR_PSIZE16 = (2 << 8), - CR_PSIZE32 = (3 << 8), - CR_PORTCPU = (0 << 6), - CR_PORTIO = (1 << 6), - CR_PORTVXI = (2 << 6), - CR_PORTMXI = (3 << 6), - CR_AMDEVICE = (1 << 0), -}; - -static inline int CR_REQS(int source) -{ - return (source & 0x7) << 16; -}; - -static inline int CR_REQSDRQ(unsigned int drq_line) -{ - /* This also works on m-series when using channels (drq_line) 4 or 5. */ - return CR_REQS((drq_line & 0x3) | 0x4); -} - -static inline int CR_RL(unsigned int retry_limit) -{ - int value = 0; - - if (retry_limit) - value = 1 + ilog2(retry_limit); - if (value > 0x7) - value = 0x7; - return (value & 0x7) << 21; -} - enum CHSR_bits { CHSR_INT = (1 << 31), CHSR_LPAUSES = (1 << 29), -- cgit v0.10.2 From 51d430056c2a695ff7ffc62ae917c413616ec6b2 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:39 -0700 Subject: staging: comedi: mite: introduce mite_sync_dma() The struct mite_channel 'dir' member specifies if the dma is input or output. Wrap the mite_sync_input_dma() and mite_sync_output_dma() functions with a single mite_sync_dma() so that the drivers don't have to worry about the sync direction. The functions that actually sync the input/output dma currently return -1 if an overflow/underrun is detected otherwise they return 0. If an overflow/underrun is detected the async->event COMEDI_CB_OVERFLOW is also set. The callers never check the return value anyway so just make the functions return void. The async->event can be checked if necessary to detect any errors. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 748f3ab..d5475cd 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -680,8 +680,8 @@ void mite_dma_disarm(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_dma_disarm); -int mite_sync_input_dma(struct mite_channel *mite_chan, - struct comedi_subdevice *s) +static void mite_sync_input_dma(struct mite_channel *mite_chan, + struct comedi_subdevice *s) { struct comedi_async *async = s->async; int count; @@ -697,7 +697,7 @@ int mite_sync_input_dma(struct mite_channel *mite_chan, dev_warn(s->device->class_dev, "mite: DMA overwrite of free area\n"); async->events |= COMEDI_CB_OVERFLOW; - return -1; + return; } count = nbytes - async->buf_write_count; @@ -705,18 +705,15 @@ int mite_sync_input_dma(struct mite_channel *mite_chan, * it's possible count will be negative due to conservative value * returned by mite_bytes_written_to_memory_lb */ - if (count <= 0) - return 0; - - comedi_buf_write_free(s, count); - comedi_inc_scan_progress(s, count); - async->events |= COMEDI_CB_BLOCK; - return 0; + if (count > 0) { + comedi_buf_write_free(s, count); + comedi_inc_scan_progress(s, count); + async->events |= COMEDI_CB_BLOCK; + } } -EXPORT_SYMBOL_GPL(mite_sync_input_dma); -int mite_sync_output_dma(struct mite_channel *mite_chan, - struct comedi_subdevice *s) +static void mite_sync_output_dma(struct mite_channel *mite_chan, + struct comedi_subdevice *s) { struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; @@ -739,7 +736,7 @@ int mite_sync_output_dma(struct mite_channel *mite_chan, ((int)(nbytes_ub - old_alloc_count) > 0)) { dev_warn(s->device->class_dev, "mite: DMA underrun\n"); async->events |= COMEDI_CB_OVERFLOW; - return -1; + return; } if (finite_regen) { @@ -749,20 +746,24 @@ int mite_sync_output_dma(struct mite_channel *mite_chan, * hence we expect that old_alloc_count will reach a maximum of * stop_count bytes. */ - return 0; + return; } count = nbytes_lb - async->buf_read_count; - if (count <= 0) - return 0; - - if (count) { + if (count > 0) { comedi_buf_read_free(s, count); async->events |= COMEDI_CB_BLOCK; } - return 0; } -EXPORT_SYMBOL_GPL(mite_sync_output_dma); + +void mite_sync_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s) +{ + if (mite_chan->dir == COMEDI_INPUT) + mite_sync_input_dma(mite_chan, s); + else + mite_sync_output_dma(mite_chan, s); +} +EXPORT_SYMBOL_GPL(mite_sync_dma); static unsigned int mite_get_status(struct mite_channel *mite_chan) { diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 8d20385..99825399 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -90,10 +90,7 @@ void mite_release_channel(struct mite_channel *mite_chan); void mite_dma_arm(struct mite_channel *mite_chan); void mite_dma_disarm(struct mite_channel *mite_chan); -int mite_sync_input_dma(struct mite_channel *mite_chan, - struct comedi_subdevice *s); -int mite_sync_output_dma(struct mite_channel *mite_chan, - struct comedi_subdevice *s); +void mite_sync_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s); u32 mite_bytes_in_transit(struct mite_channel *mite_chan); unsigned int mite_ack_linkc(struct mite_channel *mite_chan); int mite_done(struct mite_channel *mite_chan); diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 4345bdc..e745eb9 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -460,7 +460,7 @@ static int ni_660x_input_poll(struct comedi_device *dev, /* lock to avoid race with comedi_poll */ spin_lock_irqsave(&devpriv->interrupt_lock, flags); - mite_sync_input_dma(counter->mite_chan, s); + mite_sync_dma(counter->mite_chan, s); spin_unlock_irqrestore(&devpriv->interrupt_lock, flags); return comedi_buf_read_n_available(s); } diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 7f7296e..3312f97 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -890,7 +890,7 @@ static void ni_sync_ai_dma(struct comedi_device *dev) spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->ai_mite_chan) - mite_sync_input_dma(devpriv->ai_mite_chan, s); + mite_sync_dma(devpriv->ai_mite_chan, s); spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); } @@ -936,7 +936,7 @@ static void mite_handle_b_linkc(struct mite_struct *mite, spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->ao_mite_chan) - mite_sync_output_dma(devpriv->ao_mite_chan, s); + mite_sync_dma(devpriv->ao_mite_chan, s); spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); } @@ -3698,7 +3698,7 @@ static void handle_cdio_interrupt(struct comedi_device *dev) spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->cdo_mite_chan) { mite_ack_linkc(devpriv->cdo_mite_chan); - mite_sync_output_dma(devpriv->cdo_mite_chan, s); + mite_sync_dma(devpriv->cdo_mite_chan, s); } spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index b67358d..d2276de 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -368,7 +368,7 @@ static int ni_pcidio_poll(struct comedi_device *dev, struct comedi_subdevice *s) spin_lock_irqsave(&dev->spinlock, irq_flags); spin_lock(&devpriv->mite_channel_lock); if (devpriv->di_mite_chan) - mite_sync_input_dma(devpriv->di_mite_chan, s); + mite_sync_dma(devpriv->di_mite_chan, s); spin_unlock(&devpriv->mite_channel_lock); count = comedi_buf_n_bytes_ready(s); spin_unlock_irqrestore(&dev->spinlock, irq_flags); @@ -403,7 +403,7 @@ static irqreturn_t nidio_interrupt(int irq, void *d) unsigned int m_status = mite_ack_linkc(devpriv->di_mite_chan); if (m_status & CHSR_LINKC) { - mite_sync_input_dma(devpriv->di_mite_chan, s); + mite_sync_dma(devpriv->di_mite_chan, s); /* XXX need to byteswap */ } if (m_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_DRDY | diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index dc0b0f3..4c76cb8 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -430,7 +430,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, spin_lock_irqsave(&counter->lock, flags); if (counter->mite_chan) { mite_ack_linkc(counter->mite_chan); - mite_sync_input_dma(counter->mite_chan, s); + mite_sync_dma(counter->mite_chan, s); } spin_unlock_irqrestore(&counter->lock, flags); } -- cgit v0.10.2 From 268bc9cd3a3cfb0cafaa484f463084ccb1abf9f7 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:40 -0700 Subject: staging: comedi: mite: rename CamelCase CHSR bit enums Rename the CamelCase symbols to fix the checkpatch.pl issues. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 99825399..9ef51e8 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -126,7 +126,7 @@ enum CHSR_bits { CHSR_SABORT = (1 << 14), CHSR_HABORT = (1 << 13), CHSR_STOPS = (1 << 12), - CHSR_OPERR_mask = (3 << 10), + CHSR_OPERR_MASK = (3 << 10), CHSR_OPERR_NOERROR = (0 << 10), CHSR_OPERR_FIFOERROR = (1 << 10), CHSR_OPERR_LINKERROR = (1 << 10), /* ??? */ @@ -138,11 +138,11 @@ enum CHSR_bits { CHSR_LBERR = (1 << 4), CHSR_LRERR = (2 << 4), CHSR_LOERR = (3 << 4), - CHSR_MxERR_mask = (3 << 2), + CHSR_MERR_MASK = (3 << 2), CHSR_MBERR = (1 << 2), CHSR_MRERR = (2 << 2), CHSR_MOERR = (3 << 2), - CHSR_DxERR_mask = (3 << 0), + CHSR_DERR_MASK = (3 << 0), CHSR_DBERR = (1 << 0), CHSR_DRERR = (2 << 0), CHSR_DOERR = (3 << 0), -- cgit v0.10.2 From 43d667243c734fe7de39a586a095ea8fec9a873a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:41 -0700 Subject: staging: comedi: mite: document the mite_struct spinlock_t Add a comment to fix the checkpatch.pl issue: CHECK: spinlock_t definition without comment Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 9ef51e8..bd54dd0 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -57,6 +57,7 @@ struct mite_struct { short channel_allocated[MAX_MITE_DMA_CHANNELS]; int num_channels; unsigned int fifo_size; + /* protects mite_channel from being released by the driver */ spinlock_t lock; }; -- cgit v0.10.2 From 7024cc88bf80644c50d125a47ae5ab6b7f675216 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:42 -0700 Subject: staging: comedi: mite: remove BUG_ON() in MITE_IODWBSR_1_WSIZE_bits() Prior to calling this function pci_ioremap_bar() is called. If the pci_resource_len(), i.e. the 'size', was 0 the ioremap would fail so this function would never be called. So the first BUG_ON() can never occur. The 'order' returned by ilog2() will always be > 0 so the second BUG_ON() will also never occur. Remove the unnecessary BUG_ON() checks and tidy up the function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index d5475cd..2233a41 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -157,12 +157,7 @@ static unsigned int MITE_IODWBSR_1_WSIZE_bits(unsigned int size) { - unsigned int order = 0; - - BUG_ON(size == 0); - order = ilog2(size); - BUG_ON(order < 1); - return (order - 1) & 0x1f; + return (ilog2(size) - 1) & 0x1f; } static unsigned int mite_retry_limit(unsigned int retry_limit) -- cgit v0.10.2 From 21e871fef7a681826c661332c285be95f0204aca Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 20 Apr 2016 10:36:43 -0700 Subject: staging: comedi: mite: cleanup remaining mite register/bits For aesthetics, convert the register/bit enums into defines and use the BIT() macro to define the bits. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index bd54dd0..4942853 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -104,49 +104,49 @@ int mite_init_ring_descriptors(struct mite_dma_descriptor_ring *ring, struct comedi_subdevice *s, unsigned int nbytes); -enum mite_registers { - MITE_IODWBSR = 0xc0, /* IO Device Window Base Size Register */ - MITE_IODWBSR_1 = 0xc4, /* IO Device Window Base Size Register 1 */ - MITE_IODWCR_1 = 0xf4, -}; - -enum MITE_IODWBSR_bits { - WENAB = 0x80, /* window enable */ -}; - -enum CHSR_bits { - CHSR_INT = (1 << 31), - CHSR_LPAUSES = (1 << 29), - CHSR_SARS = (1 << 27), - CHSR_DONE = (1 << 25), - CHSR_MRDY = (1 << 23), - CHSR_DRDY = (1 << 21), - CHSR_LINKC = (1 << 19), - CHSR_CONTS_RB = (1 << 17), - CHSR_ERROR = (1 << 15), - CHSR_SABORT = (1 << 14), - CHSR_HABORT = (1 << 13), - CHSR_STOPS = (1 << 12), - CHSR_OPERR_MASK = (3 << 10), - CHSR_OPERR_NOERROR = (0 << 10), - CHSR_OPERR_FIFOERROR = (1 << 10), - CHSR_OPERR_LINKERROR = (1 << 10), /* ??? */ - CHSR_XFERR = (1 << 9), - CHSR_END = (1 << 8), - CHSR_DRQ1 = (1 << 7), - CHSR_DRQ0 = (1 << 6), - CHSR_LERR_MASK = (3 << 4), - CHSR_LBERR = (1 << 4), - CHSR_LRERR = (2 << 4), - CHSR_LOERR = (3 << 4), - CHSR_MERR_MASK = (3 << 2), - CHSR_MBERR = (1 << 2), - CHSR_MRERR = (2 << 2), - CHSR_MOERR = (3 << 2), - CHSR_DERR_MASK = (3 << 0), - CHSR_DBERR = (1 << 0), - CHSR_DRERR = (2 << 0), - CHSR_DOERR = (3 << 0), -}; +/* + * Mite registers (used outside of the mite driver) + */ +#define MITE_IODWBSR 0xc0 /* IO Device Window Base Size */ +#define MITE_IODWBSR_1 0xc4 /* IO Device Window1 Base Size */ +#define WENAB BIT(7) /* window enable */ +#define MITE_IODWCR_1 0xf4 + +#define CHSR_INT BIT(31) +#define CHSR_LPAUSES BIT(29) +#define CHSR_SARS BIT(27) +#define CHSR_DONE BIT(25) +#define CHSR_MRDY BIT(23) +#define CHSR_DRDY BIT(21) +#define CHSR_LINKC BIT(19) +#define CHSR_CONTS_RB BIT(17) +#define CHSR_ERROR BIT(15) +#define CHSR_SABORT BIT(14) +#define CHSR_HABORT BIT(13) +#define CHSR_STOPS BIT(12) +#define CHSR_OPERR(x) (((x) & 0x3) << 10) +#define CHSR_OPERR_MASK CHSR_OPERR(3) +#define CHSR_OPERR_NOERROR CHSR_OPERR(0) +#define CHSR_OPERR_FIFOERROR CHSR_OPERR(1) +#define CHSR_OPERR_LINKERROR CHSR_OPERR(1) /* ??? */ +#define CHSR_XFERR BIT(9) +#define CHSR_END BIT(8) +#define CHSR_DRQ1 BIT(7) +#define CHSR_DRQ0 BIT(6) +#define CHSR_LERR(x) (((x) & 0x3) << 4) +#define CHSR_LERR_MASK CHSR_LERR(3) +#define CHSR_LBERR CHSR_LERR(1) +#define CHSR_LRERR CHSR_LERR(2) +#define CHSR_LOERR CHSR_LERR(3) +#define CHSR_MERR(x) (((x) & 0x3) << 2) +#define CHSR_MERR_MASK CHSR_MERR(3) +#define CHSR_MBERR CHSR_MERR(1) +#define CHSR_MRERR CHSR_MERR(2) +#define CHSR_MOERR CHSR_MERR(3) +#define CHSR_DERR(x) (((x) & 0x3) << 0) +#define CHSR_DERR_MASK CHSR_DERR(3) +#define CHSR_DBERR CHSR_DERR(1) +#define CHSR_DRERR CHSR_DERR(2) +#define CHSR_DOERR CHSR_DERR(3) #endif -- cgit v0.10.2 From cc38da7287ed4f0f08956351167c31e4e6abc427 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:37 -0700 Subject: staging: comedi: mite: check for transfer errors in mite_ack_linkc() Currently only some of the users of mite dma check for transfer errors. The ni_mio_common code does the check for the analog input and analog output subdevices. The m-series digital I/O subdevice and the counter subdevices (handled by ni_tiocmd) do not check. The ni_pcidio driver checks for the digital input subdevice. The ni_660x driver counter subdevices (handled by ni_tiocmd) also do not check. Move the transfer error checking into mite_ack_linkc() so that the drivers that use mite don't have to deal with it. This also makes sure that all the subdevices that use mite for dma will cancel the async command if a transfer error is detected. Simplfy the transfer error check by just checking the CHSR_XFERR bit. This bit will be set if one or more transfer processes terminated with an error. The actual error is determined by the LERR, MERR, and DERR bits. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 2233a41..d970592 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -778,7 +778,8 @@ static unsigned int mite_get_status(struct mite_channel *mite_chan) return status; } -unsigned int mite_ack_linkc(struct mite_channel *mite_chan) +unsigned int mite_ack_linkc(struct mite_channel *mite_chan, + struct comedi_subdevice *s) { struct mite_struct *mite = mite_chan->mite; unsigned int status; @@ -787,6 +788,11 @@ unsigned int mite_ack_linkc(struct mite_channel *mite_chan) if (status & CHSR_LINKC) writel(CHOR_CLRLC, mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); + if (status & CHSR_XFERR) { + dev_err(s->device->class_dev, + "mite: transfer error %08x\n", status); + s->async->events |= COMEDI_CB_ERROR; + } return status; } diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 4942853..f8364ed 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -93,7 +93,8 @@ void mite_dma_arm(struct mite_channel *mite_chan); void mite_dma_disarm(struct mite_channel *mite_chan); void mite_sync_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s); u32 mite_bytes_in_transit(struct mite_channel *mite_chan); -unsigned int mite_ack_linkc(struct mite_channel *mite_chan); +unsigned int mite_ack_linkc(struct mite_channel *mite_chan, + struct comedi_subdevice *s); int mite_done(struct mite_channel *mite_chan); void mite_prep_dma(struct mite_channel *mite_chan, diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 3312f97..2e27815 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1317,16 +1317,6 @@ static void handle_a_interrupt(struct comedi_device *dev, unsigned short status, #ifdef PCIDMA if (ai_mite_status & CHSR_LINKC) ni_sync_ai_dma(dev); - - if (ai_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY | - CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR | - CHSR_SABORT | CHSR_XFERR | CHSR_LERR_MASK)) { - dev_err(dev->class_dev, - "unknown mite interrupt (ai_mite_status=%08x)\n", - ai_mite_status); - s->async->events |= COMEDI_CB_ERROR; - /* disable_irq(dev->irq); */ - } #endif /* test for all uncommon interrupt events at the same time */ @@ -1422,15 +1412,6 @@ static void handle_b_interrupt(struct comedi_device *dev, mite_handle_b_linkc(devpriv->mite, dev); } - - if (ao_mite_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_MRDY | - CHSR_DRDY | CHSR_DRQ1 | CHSR_DRQ0 | CHSR_ERROR | - CHSR_SABORT | CHSR_XFERR | CHSR_LERR_MASK)) { - dev_err(dev->class_dev, - "unknown mite interrupt (ao_mite_status=%08x)\n", - ao_mite_status); - s->async->events |= COMEDI_CB_ERROR; - } #endif if (b_status == 0xffff) @@ -3697,7 +3678,7 @@ static void handle_cdio_interrupt(struct comedi_device *dev) spin_lock_irqsave(&devpriv->mite_channel_lock, flags); if (devpriv->cdo_mite_chan) { - mite_ack_linkc(devpriv->cdo_mite_chan); + mite_ack_linkc(devpriv->cdo_mite_chan, s); mite_sync_dma(devpriv->cdo_mite_chan, s); } spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); @@ -5217,9 +5198,11 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too); if (devpriv->ai_mite_chan) - ai_mite_status = mite_ack_linkc(devpriv->ai_mite_chan); + ai_mite_status = mite_ack_linkc(devpriv->ai_mite_chan, + dev->read_subdev); if (devpriv->ao_mite_chan) - ao_mite_status = mite_ack_linkc(devpriv->ao_mite_chan); + ao_mite_status = mite_ack_linkc(devpriv->ao_mite_chan, + dev->write_subdev); spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags_too); } #endif diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index d2276de..b4c6bab 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -400,19 +400,13 @@ static irqreturn_t nidio_interrupt(int irq, void *d) spin_lock(&devpriv->mite_channel_lock); if (devpriv->di_mite_chan) { - unsigned int m_status = mite_ack_linkc(devpriv->di_mite_chan); + unsigned int m_status = mite_ack_linkc(devpriv->di_mite_chan, + s); if (m_status & CHSR_LINKC) { mite_sync_dma(devpriv->di_mite_chan, s); /* XXX need to byteswap */ } - if (m_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_DRDY | - CHSR_DRQ1 | CHSR_MRDY)) { - dev_dbg(dev->class_dev, - "unknown mite interrupt, disabling IRQ\n"); - async->events |= COMEDI_CB_ERROR; - disable_irq(dev->irq); - } } spin_unlock(&devpriv->mite_channel_lock); diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index 4c76cb8..5228b9f 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -429,7 +429,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, } spin_lock_irqsave(&counter->lock, flags); if (counter->mite_chan) { - mite_ack_linkc(counter->mite_chan); + mite_ack_linkc(counter->mite_chan, s); mite_sync_dma(counter->mite_chan, s); } spin_unlock_irqrestore(&counter->lock, flags); -- cgit v0.10.2 From 72639a16704b10cf5fffaa52715929dc8f081528 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:38 -0700 Subject: staging: comedi: ni_mio_common: absorb mite_handle_b_linkc() Simplfy the LINKC handing by removing the helper function and moving the mite_sync_dma() into the main interrupt handler. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 2e27815..b2657de 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -927,19 +927,6 @@ static int ni_ai_drain_dma(struct comedi_device *dev) return retval; } -static void mite_handle_b_linkc(struct mite_struct *mite, - struct comedi_device *dev) -{ - struct ni_private *devpriv = dev->private; - struct comedi_subdevice *s = dev->write_subdev; - unsigned long flags; - - spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - if (devpriv->ao_mite_chan) - mite_sync_dma(devpriv->ao_mite_chan, s); - spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); -} - static int ni_ao_wait_for_dma_load(struct comedi_device *dev) { static const int timeout = 10000; @@ -1403,16 +1390,6 @@ static void handle_b_interrupt(struct comedi_device *dev, unsigned int ao_mite_status) { struct comedi_subdevice *s = dev->write_subdev; - /* unsigned short ack=0; */ - -#ifdef PCIDMA - /* Currently, mite.c requires us to handle LINKC */ - if (ao_mite_status & CHSR_LINKC) { - struct ni_private *devpriv = dev->private; - - mite_handle_b_linkc(devpriv->mite, dev); - } -#endif if (b_status == 0xffff) return; @@ -5200,9 +5177,15 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) if (devpriv->ai_mite_chan) ai_mite_status = mite_ack_linkc(devpriv->ai_mite_chan, dev->read_subdev); - if (devpriv->ao_mite_chan) + + if (devpriv->ao_mite_chan) { ao_mite_status = mite_ack_linkc(devpriv->ao_mite_chan, dev->write_subdev); + if (ao_mite_status & CHSR_LINKC) + mite_sync_dma(devpriv->ao_mite_chan, + dev->write_subdev); + } + spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags_too); } #endif -- cgit v0.10.2 From 7ef1745f29d12b31361d0cf3a2bc259a396aac10 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:39 -0700 Subject: staging: comedi: ni_mio_common: fix interrupt handler for dev->write_subdev There may not be a dev->write_subdev, i.e. an analog output subdevice, that supports async commands. If it doesn't exist the interrupt/dma will never be enabled. Fix ni_E_interrupt() so that the analog output subdevice is only handled if it exists. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index b2657de..5f6eedb 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1386,11 +1386,10 @@ static void ack_b_interrupt(struct comedi_device *dev, unsigned short b_status) } static void handle_b_interrupt(struct comedi_device *dev, + struct comedi_subdevice *s, unsigned short b_status, unsigned int ao_mite_status) { - struct comedi_subdevice *s = dev->write_subdev; - if (b_status == 0xffff) return; if (b_status & NISTC_AO_STATUS1_OVERRUN) { @@ -5152,6 +5151,7 @@ static int ni_gpct_cancel(struct comedi_device *dev, struct comedi_subdevice *s) static irqreturn_t ni_E_interrupt(int irq, void *d) { struct comedi_device *dev = d; + struct comedi_subdevice *s_ao = dev->write_subdev; unsigned short a_status; unsigned short b_status; unsigned int ai_mite_status = 0; @@ -5178,12 +5178,11 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) ai_mite_status = mite_ack_linkc(devpriv->ai_mite_chan, dev->read_subdev); - if (devpriv->ao_mite_chan) { + if (s_ao && devpriv->ao_mite_chan) { ao_mite_status = mite_ack_linkc(devpriv->ao_mite_chan, - dev->write_subdev); + s_ao); if (ao_mite_status & CHSR_LINKC) - mite_sync_dma(devpriv->ao_mite_chan, - dev->write_subdev); + mite_sync_dma(devpriv->ao_mite_chan, s_ao); } spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags_too); @@ -5193,8 +5192,9 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) ack_b_interrupt(dev, b_status); if ((a_status & NISTC_AI_STATUS1_INTA) || (ai_mite_status & CHSR_INT)) handle_a_interrupt(dev, a_status, ai_mite_status); - if ((b_status & NISTC_AO_STATUS1_INTB) || (ao_mite_status & CHSR_INT)) - handle_b_interrupt(dev, b_status, ao_mite_status); + if (s_ao && + ((b_status & NISTC_AO_STATUS1_INTB) || (ao_mite_status & CHSR_INT))) + handle_b_interrupt(dev, s_ao, b_status, ao_mite_status); handle_gpct_interrupt(dev, 0); handle_gpct_interrupt(dev, 1); #ifdef PCIDMA -- cgit v0.10.2 From 4b2d73898fdd75cc841a2a6fc978fdc7b5f5247a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:40 -0700 Subject: staging: comedi: ni_mio_common: handle_b_interrupt() does not need ao_mite_status This function only handles the analog input interrupts, the dma was already handled. Remove the unecessary parameter and fix ni_E_interrupts() so that the comedi events are properly handled. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 5f6eedb..1f661f2 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1387,8 +1387,7 @@ static void ack_b_interrupt(struct comedi_device *dev, unsigned short b_status) static void handle_b_interrupt(struct comedi_device *dev, struct comedi_subdevice *s, - unsigned short b_status, - unsigned int ao_mite_status) + unsigned short b_status) { if (b_status == 0xffff) return; @@ -1417,8 +1416,6 @@ static void handle_b_interrupt(struct comedi_device *dev, } } #endif - - comedi_handle_events(dev, s); } static void ni_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s, @@ -5155,7 +5152,6 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) unsigned short a_status; unsigned short b_status; unsigned int ai_mite_status = 0; - unsigned int ao_mite_status = 0; unsigned long flags; #ifdef PCIDMA struct ni_private *devpriv = dev->private; @@ -5172,6 +5168,7 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) #ifdef PCIDMA if (devpriv->mite) { unsigned long flags_too; + unsigned int m_status; spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too); if (devpriv->ai_mite_chan) @@ -5179,9 +5176,8 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) dev->read_subdev); if (s_ao && devpriv->ao_mite_chan) { - ao_mite_status = mite_ack_linkc(devpriv->ao_mite_chan, - s_ao); - if (ao_mite_status & CHSR_LINKC) + m_status = mite_ack_linkc(devpriv->ao_mite_chan, s_ao); + if (m_status & CHSR_LINKC) mite_sync_dma(devpriv->ao_mite_chan, s_ao); } @@ -5192,9 +5188,12 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) ack_b_interrupt(dev, b_status); if ((a_status & NISTC_AI_STATUS1_INTA) || (ai_mite_status & CHSR_INT)) handle_a_interrupt(dev, a_status, ai_mite_status); - if (s_ao && - ((b_status & NISTC_AO_STATUS1_INTB) || (ao_mite_status & CHSR_INT))) - handle_b_interrupt(dev, s_ao, b_status, ao_mite_status); + if (s_ao) { + if (b_status & NISTC_AO_STATUS1_INTB) + handle_b_interrupt(dev, s_ao, b_status); + /* handle any interrupt or dma events */ + comedi_handle_events(dev, s_ao); + } handle_gpct_interrupt(dev, 0); handle_gpct_interrupt(dev, 1); #ifdef PCIDMA -- cgit v0.10.2 From ba5c0da886c5f75f3bf7cab2f1f23a9ba05e04a5 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:41 -0700 Subject: staging: comedi: ni_mio_common: fix interrupt handler for dev->read_subdev There may not be a dev->read_subdev, i.e. an analog input subdevice, that supports async commands. If it doesn't exist the interrupt/dma will never be enabled. Fix ni_E_interrupt() so that the analog input subdevice is only handled if it exists. This also fixes minor NULL dereference issue in handle_a_interrupt(). If the dev->read_subdev is NULL the comedi_async pointer (s->async) will not be allocated by the device postconfig so there is no way to get a valid comedi_cmd (&s->async->cmd). Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 1f661f2..6e76c95 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1288,19 +1288,13 @@ static void ack_a_interrupt(struct comedi_device *dev, unsigned short a_status) ni_stc_writew(dev, ack, NISTC_INTA_ACK_REG); } -static void handle_a_interrupt(struct comedi_device *dev, unsigned short status, +static void handle_a_interrupt(struct comedi_device *dev, + struct comedi_subdevice *s, + unsigned short status, unsigned int ai_mite_status) { - struct comedi_subdevice *s = dev->read_subdev; struct comedi_cmd *cmd = &s->async->cmd; - /* - * 67xx boards don't have ai subdevice, but their gpct0 might - * generate an a interrupt. - */ - if (s->type == COMEDI_SUBD_UNUSED) - return; - #ifdef PCIDMA if (ai_mite_status & CHSR_LINKC) ni_sync_ai_dma(dev); @@ -5148,6 +5142,7 @@ static int ni_gpct_cancel(struct comedi_device *dev, struct comedi_subdevice *s) static irqreturn_t ni_E_interrupt(int irq, void *d) { struct comedi_device *dev = d; + struct comedi_subdevice *s_ai = dev->read_subdev; struct comedi_subdevice *s_ao = dev->write_subdev; unsigned short a_status; unsigned short b_status; @@ -5171,9 +5166,9 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) unsigned int m_status; spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too); - if (devpriv->ai_mite_chan) + if (s_ai && devpriv->ai_mite_chan) ai_mite_status = mite_ack_linkc(devpriv->ai_mite_chan, - dev->read_subdev); + s_ai); if (s_ao && devpriv->ao_mite_chan) { m_status = mite_ack_linkc(devpriv->ao_mite_chan, s_ao); @@ -5186,8 +5181,9 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) #endif ack_a_interrupt(dev, a_status); ack_b_interrupt(dev, b_status); - if ((a_status & NISTC_AI_STATUS1_INTA) || (ai_mite_status & CHSR_INT)) - handle_a_interrupt(dev, a_status, ai_mite_status); + if (s_ai && + ((a_status & NISTC_AI_STATUS1_INTA) || (ai_mite_status & CHSR_INT))) + handle_a_interrupt(dev, s_ai, a_status, ai_mite_status); if (s_ao) { if (b_status & NISTC_AO_STATUS1_INTB) handle_b_interrupt(dev, s_ao, b_status); -- cgit v0.10.2 From 7101711ee4706915380bdd103902e864380a6987 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:42 -0700 Subject: staging: comedi: ni_mio_common: simplify AI LINKC handling Simplfy the LINKC handing for the analog input dma by moving it into the main interrupt handler. This function already hold the spinlock mite_channel_lock so call mite_sync_dma() directly instead of using the helper function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 6e76c95..9df1407 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1295,11 +1295,6 @@ static void handle_a_interrupt(struct comedi_device *dev, { struct comedi_cmd *cmd = &s->async->cmd; -#ifdef PCIDMA - if (ai_mite_status & CHSR_LINKC) - ni_sync_ai_dma(dev); -#endif - /* test for all uncommon interrupt events at the same time */ if (status & (NISTC_AI_STATUS1_ERR | NISTC_AI_STATUS1_SC_TC | NISTC_AI_STATUS1_START1)) { @@ -5166,9 +5161,12 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) unsigned int m_status; spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too); - if (s_ai && devpriv->ai_mite_chan) + if (s_ai && devpriv->ai_mite_chan) { ai_mite_status = mite_ack_linkc(devpriv->ai_mite_chan, s_ai); + if (ai_mite_status & CHSR_LINKC) + mite_sync_dma(devpriv->ai_mite_chan, s_ai); + } if (s_ao && devpriv->ao_mite_chan) { m_status = mite_ack_linkc(devpriv->ao_mite_chan, s_ao); -- cgit v0.10.2 From 3da088cae2a5f2ae6e8192db4b6e36496fd81514 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:43 -0700 Subject: staging: comedi: ni_mio_common: handle_a_interrupt() does not need ai_mite_status This function only handles the analog input interrupts, the dma was already handled. Remove the unecessary parameter and fix ni_E_interrupts() so that the comedi events are properly handled. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 9df1407..a3b93c1 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1290,8 +1290,7 @@ static void ack_a_interrupt(struct comedi_device *dev, unsigned short a_status) static void handle_a_interrupt(struct comedi_device *dev, struct comedi_subdevice *s, - unsigned short status, - unsigned int ai_mite_status) + unsigned short status) { struct comedi_cmd *cmd = &s->async->cmd; @@ -1304,10 +1303,8 @@ static void handle_a_interrupt(struct comedi_device *dev, * We probably aren't even running a command now, * so it's a good idea to be careful. */ - if (comedi_is_subdevice_running(s)) { + if (comedi_is_subdevice_running(s)) s->async->events |= COMEDI_CB_ERROR; - comedi_handle_events(dev, s); - } return; } if (status & NISTC_AI_STATUS1_ERR) { @@ -1319,8 +1316,6 @@ static void handle_a_interrupt(struct comedi_device *dev, s->async->events |= COMEDI_CB_ERROR; if (status & NISTC_AI_STATUS1_OVER) s->async->events |= COMEDI_CB_OVERFLOW; - - comedi_handle_events(dev, s); return; } if (status & NISTC_AI_STATUS1_SC_TC) { @@ -1348,8 +1343,6 @@ static void handle_a_interrupt(struct comedi_device *dev, if (status & NISTC_AI_STATUS1_STOP) ni_handle_eos(dev, s); - - comedi_handle_events(dev, s); } static void ack_b_interrupt(struct comedi_device *dev, unsigned short b_status) @@ -5141,7 +5134,6 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) struct comedi_subdevice *s_ao = dev->write_subdev; unsigned short a_status; unsigned short b_status; - unsigned int ai_mite_status = 0; unsigned long flags; #ifdef PCIDMA struct ni_private *devpriv = dev->private; @@ -5162,9 +5154,8 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too); if (s_ai && devpriv->ai_mite_chan) { - ai_mite_status = mite_ack_linkc(devpriv->ai_mite_chan, - s_ai); - if (ai_mite_status & CHSR_LINKC) + m_status = mite_ack_linkc(devpriv->ai_mite_chan, s_ai); + if (m_status & CHSR_LINKC) mite_sync_dma(devpriv->ai_mite_chan, s_ai); } @@ -5179,9 +5170,12 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) #endif ack_a_interrupt(dev, a_status); ack_b_interrupt(dev, b_status); - if (s_ai && - ((a_status & NISTC_AI_STATUS1_INTA) || (ai_mite_status & CHSR_INT))) - handle_a_interrupt(dev, s_ai, a_status, ai_mite_status); + if (s_ai) { + if (a_status & NISTC_AI_STATUS1_INTA) + handle_a_interrupt(dev, s_ai, a_status); + /* handle any interrupt or dma events */ + comedi_handle_events(dev, s_ai); + } if (s_ao) { if (b_status & NISTC_AO_STATUS1_INTB) handle_b_interrupt(dev, s_ao, b_status); -- cgit v0.10.2 From f7d005c33c109ef034c9480334d3d25d91aa2d6d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:44 -0700 Subject: staging: comedi: mite: make mite_ack_linkc() handle mite_sync_dma() The mite dma is always synced on a LINKC status. Some of the mite users sync the dma regadless of the status. Add a 'sync' parameter to mite_ack_linkc() to force a dma sync. Then do the dma sync as needed. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index d970592..b8cf898 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -779,15 +779,21 @@ static unsigned int mite_get_status(struct mite_channel *mite_chan) } unsigned int mite_ack_linkc(struct mite_channel *mite_chan, - struct comedi_subdevice *s) + struct comedi_subdevice *s, + bool sync) { struct mite_struct *mite = mite_chan->mite; unsigned int status; status = mite_get_status(mite_chan); - if (status & CHSR_LINKC) + if (status & CHSR_LINKC) { writel(CHOR_CLRLC, mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); + sync = true; + } + if (sync) + mite_sync_dma(mite_chan, s); + if (status & CHSR_XFERR) { dev_err(s->device->class_dev, "mite: transfer error %08x\n", status); diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index f8364ed..bf6128a 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -93,8 +93,8 @@ void mite_dma_arm(struct mite_channel *mite_chan); void mite_dma_disarm(struct mite_channel *mite_chan); void mite_sync_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s); u32 mite_bytes_in_transit(struct mite_channel *mite_chan); -unsigned int mite_ack_linkc(struct mite_channel *mite_chan, - struct comedi_subdevice *s); +unsigned int mite_ack_linkc(struct mite_channel *, struct comedi_subdevice *, + bool sync); int mite_done(struct mite_channel *mite_chan); void mite_prep_dma(struct mite_channel *mite_chan, diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index a3b93c1..dc024f2 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -3632,10 +3632,8 @@ static void handle_cdio_interrupt(struct comedi_device *dev) unsigned long flags; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - if (devpriv->cdo_mite_chan) { - mite_ack_linkc(devpriv->cdo_mite_chan, s); - mite_sync_dma(devpriv->cdo_mite_chan, s); - } + if (devpriv->cdo_mite_chan) + mite_ack_linkc(devpriv->cdo_mite_chan, s, true); spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); cdio_status = ni_readl(dev, NI_M_CDIO_STATUS_REG); @@ -5150,21 +5148,12 @@ static irqreturn_t ni_E_interrupt(int irq, void *d) #ifdef PCIDMA if (devpriv->mite) { unsigned long flags_too; - unsigned int m_status; spin_lock_irqsave(&devpriv->mite_channel_lock, flags_too); - if (s_ai && devpriv->ai_mite_chan) { - m_status = mite_ack_linkc(devpriv->ai_mite_chan, s_ai); - if (m_status & CHSR_LINKC) - mite_sync_dma(devpriv->ai_mite_chan, s_ai); - } - - if (s_ao && devpriv->ao_mite_chan) { - m_status = mite_ack_linkc(devpriv->ao_mite_chan, s_ao); - if (m_status & CHSR_LINKC) - mite_sync_dma(devpriv->ao_mite_chan, s_ao); - } - + if (s_ai && devpriv->ai_mite_chan) + mite_ack_linkc(devpriv->ai_mite_chan, s_ai, false); + if (s_ao && devpriv->ao_mite_chan) + mite_ack_linkc(devpriv->ao_mite_chan, s_ao, false); spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags_too); } #endif diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index b4c6bab..4a34da5 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -400,13 +400,8 @@ static irqreturn_t nidio_interrupt(int irq, void *d) spin_lock(&devpriv->mite_channel_lock); if (devpriv->di_mite_chan) { - unsigned int m_status = mite_ack_linkc(devpriv->di_mite_chan, - s); - - if (m_status & CHSR_LINKC) { - mite_sync_dma(devpriv->di_mite_chan, s); - /* XXX need to byteswap */ - } + mite_ack_linkc(devpriv->di_mite_chan, s, false); + /* XXX need to byteswap sync'ed dma */ } spin_unlock(&devpriv->mite_channel_lock); diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index 5228b9f..9007c57 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -428,10 +428,8 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, break; } spin_lock_irqsave(&counter->lock, flags); - if (counter->mite_chan) { - mite_ack_linkc(counter->mite_chan, s); - mite_sync_dma(counter->mite_chan, s); - } + if (counter->mite_chan) + mite_ack_linkc(counter->mite_chan, s, true); spin_unlock_irqrestore(&counter->lock, flags); } EXPORT_SYMBOL_GPL(ni_tio_handle_interrupt); -- cgit v0.10.2 From 0c912e5c9cbaaaa6e1d5a81f42ea3d2eb6ce7a10 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:45 -0700 Subject: staging: comedi: mite: return void from mite_ack_linkc() Currently this function returns the value read from the mite channel status register. None of the callers use, or need, the returned value. For aesthetics, change the return to void. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index b8cf898..771b51e 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -778,9 +778,9 @@ static unsigned int mite_get_status(struct mite_channel *mite_chan) return status; } -unsigned int mite_ack_linkc(struct mite_channel *mite_chan, - struct comedi_subdevice *s, - bool sync) +void mite_ack_linkc(struct mite_channel *mite_chan, + struct comedi_subdevice *s, + bool sync) { struct mite_struct *mite = mite_chan->mite; unsigned int status; @@ -799,8 +799,6 @@ unsigned int mite_ack_linkc(struct mite_channel *mite_chan, "mite: transfer error %08x\n", status); s->async->events |= COMEDI_CB_ERROR; } - - return status; } EXPORT_SYMBOL_GPL(mite_ack_linkc); diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index bf6128a..96e1380 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -93,8 +93,8 @@ void mite_dma_arm(struct mite_channel *mite_chan); void mite_dma_disarm(struct mite_channel *mite_chan); void mite_sync_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s); u32 mite_bytes_in_transit(struct mite_channel *mite_chan); -unsigned int mite_ack_linkc(struct mite_channel *, struct comedi_subdevice *, - bool sync); +void mite_ack_linkc(struct mite_channel *, struct comedi_subdevice *, + bool sync); int mite_done(struct mite_channel *mite_chan); void mite_prep_dma(struct mite_channel *mite_chan, -- cgit v0.10.2 From 6c3b78aa6e46addbbf6fba590b7af4ecbe45d459 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Thu, 21 Apr 2016 12:04:46 -0700 Subject: staging: comedi: mite: don't expose CHSR_* bit defines These bit defines are only used in the mite driver. Move them so they are not needlessly exposed. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 771b51e..1f54cd0 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -133,6 +133,42 @@ #define MITE_WSCR(x) (0x34 + MITE_CHAN(x)) /* ? */ #define MITE_WSER(x) (0x38 + MITE_CHAN(x)) /* ? */ #define MITE_CHSR(x) (0x3c + MITE_CHAN(x)) /* channel status */ +#define CHSR_INT BIT(31) +#define CHSR_LPAUSES BIT(29) +#define CHSR_SARS BIT(27) +#define CHSR_DONE BIT(25) +#define CHSR_MRDY BIT(23) +#define CHSR_DRDY BIT(21) +#define CHSR_LINKC BIT(19) +#define CHSR_CONTS_RB BIT(17) +#define CHSR_ERROR BIT(15) +#define CHSR_SABORT BIT(14) +#define CHSR_HABORT BIT(13) +#define CHSR_STOPS BIT(12) +#define CHSR_OPERR(x) (((x) & 0x3) << 10) +#define CHSR_OPERR_MASK CHSR_OPERR(3) +#define CHSR_OPERR_NOERROR CHSR_OPERR(0) +#define CHSR_OPERR_FIFOERROR CHSR_OPERR(1) +#define CHSR_OPERR_LINKERROR CHSR_OPERR(1) /* ??? */ +#define CHSR_XFERR BIT(9) +#define CHSR_END BIT(8) +#define CHSR_DRQ1 BIT(7) +#define CHSR_DRQ0 BIT(6) +#define CHSR_LERR(x) (((x) & 0x3) << 4) +#define CHSR_LERR_MASK CHSR_LERR(3) +#define CHSR_LBERR CHSR_LERR(1) +#define CHSR_LRERR CHSR_LERR(2) +#define CHSR_LOERR CHSR_LERR(3) +#define CHSR_MERR(x) (((x) & 0x3) << 2) +#define CHSR_MERR_MASK CHSR_MERR(3) +#define CHSR_MBERR CHSR_MERR(1) +#define CHSR_MRERR CHSR_MERR(2) +#define CHSR_MOERR CHSR_MERR(3) +#define CHSR_DERR(x) (((x) & 0x3) << 0) +#define CHSR_DERR_MASK CHSR_DERR(3) +#define CHSR_DBERR CHSR_DERR(1) +#define CHSR_DRERR CHSR_DERR(2) +#define CHSR_DOERR CHSR_DERR(3) #define MITE_FCR(x) (0x40 + MITE_CHAN(x)) /* fifo count */ /* common bits for the memory/device/link config registers */ diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 96e1380..1f8959d 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -113,41 +113,4 @@ int mite_init_ring_descriptors(struct mite_dma_descriptor_ring *ring, #define WENAB BIT(7) /* window enable */ #define MITE_IODWCR_1 0xf4 -#define CHSR_INT BIT(31) -#define CHSR_LPAUSES BIT(29) -#define CHSR_SARS BIT(27) -#define CHSR_DONE BIT(25) -#define CHSR_MRDY BIT(23) -#define CHSR_DRDY BIT(21) -#define CHSR_LINKC BIT(19) -#define CHSR_CONTS_RB BIT(17) -#define CHSR_ERROR BIT(15) -#define CHSR_SABORT BIT(14) -#define CHSR_HABORT BIT(13) -#define CHSR_STOPS BIT(12) -#define CHSR_OPERR(x) (((x) & 0x3) << 10) -#define CHSR_OPERR_MASK CHSR_OPERR(3) -#define CHSR_OPERR_NOERROR CHSR_OPERR(0) -#define CHSR_OPERR_FIFOERROR CHSR_OPERR(1) -#define CHSR_OPERR_LINKERROR CHSR_OPERR(1) /* ??? */ -#define CHSR_XFERR BIT(9) -#define CHSR_END BIT(8) -#define CHSR_DRQ1 BIT(7) -#define CHSR_DRQ0 BIT(6) -#define CHSR_LERR(x) (((x) & 0x3) << 4) -#define CHSR_LERR_MASK CHSR_LERR(3) -#define CHSR_LBERR CHSR_LERR(1) -#define CHSR_LRERR CHSR_LERR(2) -#define CHSR_LOERR CHSR_LERR(3) -#define CHSR_MERR(x) (((x) & 0x3) << 2) -#define CHSR_MERR_MASK CHSR_MERR(3) -#define CHSR_MBERR CHSR_MERR(1) -#define CHSR_MRERR CHSR_MERR(2) -#define CHSR_MOERR CHSR_MERR(3) -#define CHSR_DERR(x) (((x) & 0x3) << 0) -#define CHSR_DERR_MASK CHSR_DERR(3) -#define CHSR_DBERR CHSR_DERR(1) -#define CHSR_DRERR CHSR_DERR(2) -#define CHSR_DOERR CHSR_DERR(3) - #endif -- cgit v0.10.2 From af4981fc59a6e1cee542d21e339176e6a5b74757 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Fri, 15 Apr 2016 15:01:46 -0400 Subject: staging: rtl8723au: Add warning about this driver being deprecated This driver is deprecated and superseded by rtl8xxxu. It will be removed in a future kernel release. Add a warning to Kconfig and at device init time to notify users and allow them time to switch over. Signed-off-by: Jes Sorensen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8723au/Kconfig b/drivers/staging/rtl8723au/Kconfig index 435f359..277c1ab 100644 --- a/drivers/staging/rtl8723au/Kconfig +++ b/drivers/staging/rtl8723au/Kconfig @@ -1,5 +1,5 @@ config R8723AU - tristate "Realtek RTL8723AU Wireless LAN NIC driver" + tristate "Realtek RTL8723AU Wireless LAN NIC driver (deprecated)" depends on USB && WLAN && RFKILL select WIRELESS_EXT select WEXT_PRIV @@ -7,7 +7,10 @@ config R8723AU default n ---help--- This option adds the Realtek RTL8723AU USB device such as found in - the Lenovo Yogi 13 tablet. If built as a module, it will be called r8723au. + the Lenovo Yoga 13 tablet. If built as a module, it will be called r8723au. + + Note: This driver is deprecated and scheduled to be removed in a + future kernel release. Please use rtl8xxxu instead. if R8723AU diff --git a/drivers/staging/rtl8723au/os_dep/usb_intf.c b/drivers/staging/rtl8723au/os_dep/usb_intf.c index 27b3a5b..cf83eff 100644 --- a/drivers/staging/rtl8723au/os_dep/usb_intf.c +++ b/drivers/staging/rtl8723au/os_dep/usb_intf.c @@ -532,6 +532,7 @@ static int rtw_drv_init(struct usb_interface *pusb_intf, { struct rtw_adapter *if1 = NULL; struct dvobj_priv *dvobj; + struct usb_device *udev; int status = _FAIL; RT_TRACE(_module_hci_intfs_c_, _drv_err_, "+rtw_drv_init\n"); @@ -544,6 +545,10 @@ static int rtw_drv_init(struct usb_interface *pusb_intf, goto exit; } + udev = dvobj->pusbdev; + dev_warn(&udev->dev, "WARNING: The rtl8723au driver is deprecated!"); + dev_warn(&udev->dev, "Please use the rtl8xxxu driver for this device!"); + if1 = rtw_usb_if1_init(dvobj, pusb_intf, pdid); if (!if1) { DBG_8723A("rtw_init_primary_adapter Failed!\n"); -- cgit v0.10.2 From d03c023e1ea6c67f63a71ce642ac0a7873a55e69 Mon Sep 17 00:00:00 2001 From: Laura Abbott Date: Mon, 11 Apr 2016 10:51:11 -0700 Subject: MAINTAINERS: Add Android Ion as a separate entry The android drivers have a few other people reviewing patches. Add a separate entry to ensure patches go to the right people. Signed-off-by: Laura Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/MAINTAINERS b/MAINTAINERS index c0df1e8..d4c3c93 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -776,6 +776,15 @@ S: Supported F: drivers/android/ F: drivers/staging/android/ +ANDROID ION DRIVER +M: Laura Abbott +M: Sumit Semwal +L: devel@driverdev.osuosl.org +S: Supported +F: drivers/staging/android/ion +F: drivers/staging/android/uapi/ion.h +F: drivers/staging/android/uapi/ion_test.h + AOA (Apple Onboard Audio) ALSA DRIVER M: Johannes Berg L: linuxppc-dev@lists.ozlabs.org -- cgit v0.10.2 From b5b7fe86668b4606ccd878a6c8a57f96247c5705 Mon Sep 17 00:00:00 2001 From: Leo Sperling Date: Thu, 14 Apr 2016 13:25:26 +0200 Subject: staging: android: Fix grammar error in Kconfig file Remove the "s" from kills so that the help message is easier to understand Signed-off-by: Leo Sperling Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig index 4244821..68042ab 100644 --- a/drivers/staging/android/Kconfig +++ b/drivers/staging/android/Kconfig @@ -20,7 +20,7 @@ config ANDROID_LOW_MEMORY_KILLER Registers processes to be killed when low memory conditions, this is useful as there is no particular swap space on android. - The registered process will kills according to the priorities in android init + The registered process will kill according to the priorities in android init scripts (/init.rc), and it defines priority values with minimum free memory size for each priority. -- cgit v0.10.2 From 3ed605bc8a0a688d8750a1e2eff39c854418c5cf Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Tue, 26 Apr 2016 12:32:27 -0300 Subject: kernel.h: add u64_to_user_ptr() This function had copies in 3 different files. Unify them in kernel.h. Cc: Joe Perches Cc: Andrew Morton Cc: David Airlie Cc: Daniel Vetter Cc: Rob Clark Signed-off-by: Gustavo Padovan Acked-by: Daniel Vetter [drm/i915/] Acked-by: Rob Clark [drm/msm/] Acked-by: Lucas Stach [drm/etinav/] Acked-by: Maarten Lankhorst Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c index 236ada9..afdd55d 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c @@ -28,11 +28,6 @@ #define BO_LOCKED 0x4000 #define BO_PINNED 0x2000 -static inline void __user *to_user_ptr(u64 address) -{ - return (void __user *)(uintptr_t)address; -} - static struct etnaviv_gem_submit *submit_create(struct drm_device *dev, struct etnaviv_gpu *gpu, size_t nr) { @@ -347,21 +342,21 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, cmdbuf->exec_state = args->exec_state; cmdbuf->ctx = file->driver_priv; - ret = copy_from_user(bos, to_user_ptr(args->bos), + ret = copy_from_user(bos, u64_to_user_ptr(args->bos), args->nr_bos * sizeof(*bos)); if (ret) { ret = -EFAULT; goto err_submit_cmds; } - ret = copy_from_user(relocs, to_user_ptr(args->relocs), + ret = copy_from_user(relocs, u64_to_user_ptr(args->relocs), args->nr_relocs * sizeof(*relocs)); if (ret) { ret = -EFAULT; goto err_submit_cmds; } - ret = copy_from_user(stream, to_user_ptr(args->stream), + ret = copy_from_user(stream, u64_to_user_ptr(args->stream), args->stream_size); if (ret) { ret = -EFAULT; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 1048093..bb624cc 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3576,11 +3576,6 @@ static inline i915_reg_t i915_vgacntrl_reg(struct drm_device *dev) return VGACNTRL; } -static inline void __user *to_user_ptr(u64 address) -{ - return (void __user *)(uintptr_t)address; -} - static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m) { unsigned long j = msecs_to_jiffies(m); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index dabc089..2889716 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -324,7 +324,7 @@ i915_gem_phys_pwrite(struct drm_i915_gem_object *obj, { struct drm_device *dev = obj->base.dev; void *vaddr = obj->phys_handle->vaddr + args->offset; - char __user *user_data = to_user_ptr(args->data_ptr); + char __user *user_data = u64_to_user_ptr(args->data_ptr); int ret = 0; /* We manually control the domain here and pretend that it @@ -605,7 +605,7 @@ i915_gem_shmem_pread(struct drm_device *dev, int needs_clflush = 0; struct sg_page_iter sg_iter; - user_data = to_user_ptr(args->data_ptr); + user_data = u64_to_user_ptr(args->data_ptr); remain = args->size; obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); @@ -692,7 +692,7 @@ i915_gem_pread_ioctl(struct drm_device *dev, void *data, return 0; if (!access_ok(VERIFY_WRITE, - to_user_ptr(args->data_ptr), + u64_to_user_ptr(args->data_ptr), args->size)) return -EFAULT; @@ -783,7 +783,7 @@ i915_gem_gtt_pwrite_fast(struct drm_device *dev, if (ret) goto out_unpin; - user_data = to_user_ptr(args->data_ptr); + user_data = u64_to_user_ptr(args->data_ptr); remain = args->size; offset = i915_gem_obj_ggtt_offset(obj) + args->offset; @@ -907,7 +907,7 @@ i915_gem_shmem_pwrite(struct drm_device *dev, int needs_clflush_before = 0; struct sg_page_iter sg_iter; - user_data = to_user_ptr(args->data_ptr); + user_data = u64_to_user_ptr(args->data_ptr); remain = args->size; obj_do_bit17_swizzling = i915_gem_object_needs_bit17_swizzle(obj); @@ -1036,12 +1036,12 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, return 0; if (!access_ok(VERIFY_READ, - to_user_ptr(args->data_ptr), + u64_to_user_ptr(args->data_ptr), args->size)) return -EFAULT; if (likely(!i915.prefault_disable)) { - ret = fault_in_multipages_readable(to_user_ptr(args->data_ptr), + ret = fault_in_multipages_readable(u64_to_user_ptr(args->data_ptr), args->size); if (ret) return -EFAULT; diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 1328bc5..e60b4e7 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -514,7 +514,7 @@ i915_gem_execbuffer_relocate_vma(struct i915_vma *vma, struct drm_i915_gem_exec_object2 *entry = vma->exec_entry; int remain, ret; - user_relocs = to_user_ptr(entry->relocs_ptr); + user_relocs = u64_to_user_ptr(entry->relocs_ptr); remain = entry->relocation_count; while (remain) { @@ -865,7 +865,7 @@ i915_gem_execbuffer_relocate_slow(struct drm_device *dev, u64 invalid_offset = (u64)-1; int j; - user_relocs = to_user_ptr(exec[i].relocs_ptr); + user_relocs = u64_to_user_ptr(exec[i].relocs_ptr); if (copy_from_user(reloc+total, user_relocs, exec[i].relocation_count * sizeof(*reloc))) { @@ -1009,7 +1009,7 @@ validate_exec_list(struct drm_device *dev, invalid_flags |= EXEC_OBJECT_NEEDS_GTT; for (i = 0; i < count; i++) { - char __user *ptr = to_user_ptr(exec[i].relocs_ptr); + char __user *ptr = u64_to_user_ptr(exec[i].relocs_ptr); int length; /* limited by fault_in_pages_readable() */ if (exec[i].flags & invalid_flags) @@ -1696,7 +1696,7 @@ i915_gem_execbuffer(struct drm_device *dev, void *data, return -ENOMEM; } ret = copy_from_user(exec_list, - to_user_ptr(args->buffers_ptr), + u64_to_user_ptr(args->buffers_ptr), sizeof(*exec_list) * args->buffer_count); if (ret != 0) { DRM_DEBUG("copy %d exec entries failed %d\n", @@ -1732,7 +1732,7 @@ i915_gem_execbuffer(struct drm_device *dev, void *data, ret = i915_gem_do_execbuffer(dev, data, file, &exec2, exec2_list); if (!ret) { struct drm_i915_gem_exec_object __user *user_exec_list = - to_user_ptr(args->buffers_ptr); + u64_to_user_ptr(args->buffers_ptr); /* Copy the new buffer offsets back to the user's exec list. */ for (i = 0; i < args->buffer_count; i++) { @@ -1786,7 +1786,7 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data, return -ENOMEM; } ret = copy_from_user(exec2_list, - to_user_ptr(args->buffers_ptr), + u64_to_user_ptr(args->buffers_ptr), sizeof(*exec2_list) * args->buffer_count); if (ret != 0) { DRM_DEBUG("copy %d exec entries failed %d\n", @@ -1799,7 +1799,7 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data, if (!ret) { /* Copy the new buffer offsets back to the user's exec list. */ struct drm_i915_gem_exec_object2 __user *user_exec_list = - to_user_ptr(args->buffers_ptr); + u64_to_user_ptr(args->buffers_ptr); int i; for (i = 0; i < args->buffer_count; i++) { diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 43d2181..23d2528 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -28,11 +28,6 @@ #define BO_LOCKED 0x4000 #define BO_PINNED 0x2000 -static inline void __user *to_user_ptr(u64 address) -{ - return (void __user *)(uintptr_t)address; -} - static struct msm_gem_submit *submit_create(struct drm_device *dev, struct msm_gpu *gpu, int nr) { @@ -68,7 +63,7 @@ static int submit_lookup_objects(struct msm_gem_submit *submit, struct drm_gem_object *obj; struct msm_gem_object *msm_obj; void __user *userptr = - to_user_ptr(args->bos + (i * sizeof(submit_bo))); + u64_to_user_ptr(args->bos + (i * sizeof(submit_bo))); ret = copy_from_user(&submit_bo, userptr, sizeof(submit_bo)); if (ret) { @@ -257,7 +252,7 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob for (i = 0; i < nr_relocs; i++) { struct drm_msm_gem_submit_reloc submit_reloc; void __user *userptr = - to_user_ptr(relocs + (i * sizeof(submit_reloc))); + u64_to_user_ptr(relocs + (i * sizeof(submit_reloc))); uint32_t iova, off; bool valid; @@ -356,7 +351,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, for (i = 0; i < args->nr_cmds; i++) { struct drm_msm_gem_submit_cmd submit_cmd; void __user *userptr = - to_user_ptr(args->cmds + (i * sizeof(submit_cmd))); + u64_to_user_ptr(args->cmds + (i * sizeof(submit_cmd))); struct msm_gem_object *msm_obj; uint32_t iova; diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 2f7775e..f3e45cb 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -53,6 +53,13 @@ #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) +#define u64_to_user_ptr(x) ( \ +{ \ + typecheck(u64, x); \ + (void __user *)(uintptr_t)x; \ +} \ +) + /* * This looks more complex than it should be. But we need to * get the type for the ~ right in round_down (it needs to be -- cgit v0.10.2 From 2d75c88fefb228aedfb135228acb6620db8f0e40 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Tue, 26 Apr 2016 12:32:28 -0300 Subject: staging/android: refactor SYNC IOCTLs Change SYNC_IOC_FILE_INFO (former SYNC_IOC_FENCE_INFO) behaviour to avoid future API breaks and optimize buffer allocation. Now num_fences can be filled by the caller to inform how many fences it wants to retrieve from the kernel. If the num_fences passed is greater than zero info->sync_fence_info should point to a buffer with enough space to fit all fences. However if num_fences passed to the kernel is 0, the kernel will reply with number of fences of the sync_file. Sending first an ioctl with num_fences = 0 can optimize buffer allocation, in a first call with num_fences = 0 userspace will receive the actual number of fences in the num_fences filed. Then it can allocate a buffer with the correct size on sync_fence_info and call SYNC_IOC_FILE_INFO again, but now with the actual value of num_fences in the sync_file. info->sync_fence_info was converted to __u64 pointer to prevent 32bit compatibility issues. And a flags member was added. An example userspace code for the later would be: struct sync_file_info *info; int err, size, num_fences; info = malloc(sizeof(*info)); info.flags = 0; err = ioctl(fd, SYNC_IOC_FILE_INFO, info); num_fences = info->num_fences; if (num_fences) { info.flags = 0; size = sizeof(struct sync_fence_info) * num_fences; info->num_fences = num_fences; info->sync_fence_info = (uint64_t) calloc(num_fences, sizeof(struct sync_fence_info)); err = ioctl(fd, SYNC_IOC_FILE_INFO, info); } Finally the IOCTLs numbers were changed to avoid any potential old userspace running the old API to get weird errors. Changing the opcodes will make them fail right away. This is just a precaution, there no upstream users of these interfaces yet and the only user is Android, but we don't expect anyone trying to run android userspace and all it dependencies on top of upstream kernels. Signed-off-by: Gustavo Padovan Reviewed-by: Maarten Lankhorst Acked-by: Greg Hackmann Acked-by: Rob Clark Acked-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c index 3a8f210..f9c6094 100644 --- a/drivers/staging/android/sync.c +++ b/drivers/staging/android/sync.c @@ -445,6 +445,11 @@ static long sync_file_ioctl_merge(struct sync_file *sync_file, goto err_put_fd; } + if (data.flags || data.pad) { + err = -EINVAL; + goto err_put_fd; + } + fence2 = sync_file_fdget(data.fd2); if (!fence2) { err = -ENOENT; @@ -479,13 +484,9 @@ err_put_fd: return err; } -static int sync_fill_fence_info(struct fence *fence, void *data, int size) +static void sync_fill_fence_info(struct fence *fence, + struct sync_fence_info *info) { - struct sync_fence_info *info = data; - - if (size < sizeof(*info)) - return -ENOMEM; - strlcpy(info->obj_name, fence->ops->get_timeline_name(fence), sizeof(info->obj_name)); strlcpy(info->driver_name, fence->ops->get_driver_name(fence), @@ -495,58 +496,63 @@ static int sync_fill_fence_info(struct fence *fence, void *data, int size) else info->status = 0; info->timestamp_ns = ktime_to_ns(fence->timestamp); - - return sizeof(*info); } static long sync_file_ioctl_fence_info(struct sync_file *sync_file, unsigned long arg) { - struct sync_file_info *info; + struct sync_file_info info; + struct sync_fence_info *fence_info = NULL; __u32 size; - __u32 len = 0; int ret, i; - if (copy_from_user(&size, (void __user *)arg, sizeof(size))) + if (copy_from_user(&info, (void __user *)arg, sizeof(info))) return -EFAULT; - if (size < sizeof(struct sync_file_info)) + if (info.flags || info.pad) return -EINVAL; - if (size > 4096) - size = 4096; - - info = kzalloc(size, GFP_KERNEL); - if (!info) - return -ENOMEM; - - strlcpy(info->name, sync_file->name, sizeof(info->name)); - info->status = atomic_read(&sync_file->status); - if (info->status >= 0) - info->status = !info->status; - - len = sizeof(struct sync_file_info); + /* + * Passing num_fences = 0 means that userspace doesn't want to + * retrieve any sync_fence_info. If num_fences = 0 we skip filling + * sync_fence_info and return the actual number of fences on + * info->num_fences. + */ + if (!info.num_fences) + goto no_fences; - for (i = 0; i < sync_file->num_fences; ++i) { - struct fence *fence = sync_file->cbs[i].fence; + if (info.num_fences < sync_file->num_fences) + return -EINVAL; - ret = sync_fill_fence_info(fence, (u8 *)info + len, size - len); + size = sync_file->num_fences * sizeof(*fence_info); + fence_info = kzalloc(size, GFP_KERNEL); + if (!fence_info) + return -ENOMEM; - if (ret < 0) - goto out; + for (i = 0; i < sync_file->num_fences; ++i) + sync_fill_fence_info(sync_file->cbs[i].fence, &fence_info[i]); - len += ret; + if (copy_to_user(u64_to_user_ptr(info.sync_fence_info), fence_info, + size)) { + ret = -EFAULT; + goto out; } - info->len = len; +no_fences: + strlcpy(info.name, sync_file->name, sizeof(info.name)); + info.status = atomic_read(&sync_file->status); + if (info.status >= 0) + info.status = !info.status; + + info.num_fences = sync_file->num_fences; - if (copy_to_user((void __user *)arg, info, len)) + if (copy_to_user((void __user *)arg, &info, sizeof(info))) ret = -EFAULT; else ret = 0; out: - kfree(info); + kfree(fence_info); return ret; } @@ -560,7 +566,7 @@ static long sync_file_ioctl(struct file *file, unsigned int cmd, case SYNC_IOC_MERGE: return sync_file_ioctl_merge(sync_file, arg); - case SYNC_IOC_FENCE_INFO: + case SYNC_IOC_FILE_INFO: return sync_file_ioctl_fence_info(sync_file, arg); default: diff --git a/drivers/staging/android/uapi/sync.h b/drivers/staging/android/uapi/sync.h index a0cf357..7de5d6a 100644 --- a/drivers/staging/android/uapi/sync.h +++ b/drivers/staging/android/uapi/sync.h @@ -16,14 +16,18 @@ /** * struct sync_merge_data - data passed to merge ioctl - * @fd2: file descriptor of second fence * @name: name of new fence + * @fd2: file descriptor of second fence * @fence: returns the fd of the new fence to userspace + * @flags: merge_data flags + * @pad: padding for 64-bit alignment, should always be zero */ struct sync_merge_data { - __s32 fd2; /* fd of second fence */ char name[32]; /* name of new fence */ + __s32 fd2; /* fd of second fence */ __s32 fence; /* fd on newly created fence */ + __u32 flags; + __u32 pad; }; /** @@ -31,42 +35,54 @@ struct sync_merge_data { * @obj_name: name of parent sync_timeline * @driver_name: name of driver implementing the parent * @status: status of the fence 0:active 1:signaled <0:error + * @flags: fence_info flags * @timestamp_ns: timestamp of status change in nanoseconds */ struct sync_fence_info { char obj_name[32]; char driver_name[32]; __s32 status; + __u32 flags; __u64 timestamp_ns; }; /** * struct sync_file_info - data returned from fence info ioctl - * @len: ioctl caller writes the size of the buffer its passing in. - * ioctl returns length of sync_file_info returned to - * userspace including pt_info. * @name: name of fence * @status: status of fence. 1: signaled 0:active <0:error - * @sync_fence_info: array of sync_fence_info for every fence in the sync_file + * @flags: sync_file_info flags + * @num_fences number of fences in the sync_file + * @pad: padding for 64-bit alignment, should always be zero + * @sync_fence_info: pointer to array of structs sync_fence_info with all + * fences in the sync_file */ struct sync_file_info { - __u32 len; char name[32]; __s32 status; + __u32 flags; + __u32 num_fences; + __u32 pad; - __u8 sync_fence_info[0]; + __u64 sync_fence_info; }; #define SYNC_IOC_MAGIC '>' /** + * Opcodes 0, 1 and 2 were burned during a API change to avoid users of the + * old API to get weird errors when trying to handling sync_files. The API + * change happened during the de-stage of the Sync Framework when there was + * no upstream users available. + */ + +/** * DOC: SYNC_IOC_MERGE - merge two fences * * Takes a struct sync_merge_data. Creates a new fence containing copies of * the sync_pts in both the calling fd and sync_merge_data.fd2. Returns the * new fence's fd in sync_merge_data.fence */ -#define SYNC_IOC_MERGE _IOWR(SYNC_IOC_MAGIC, 1, struct sync_merge_data) +#define SYNC_IOC_MERGE _IOWR(SYNC_IOC_MAGIC, 3, struct sync_merge_data) /** * DOC: SYNC_IOC_FENCE_INFO - get detailed information on a fence @@ -79,6 +95,6 @@ struct sync_file_info { * pt_info is a buffer containing sync_pt_infos for every sync_pt in the fence. * To iterate over the sync_pt_infos, use the sync_pt_info.len field. */ -#define SYNC_IOC_FENCE_INFO _IOWR(SYNC_IOC_MAGIC, 2, struct sync_file_info) +#define SYNC_IOC_FILE_INFO _IOWR(SYNC_IOC_MAGIC, 4, struct sync_file_info) #endif /* _UAPI_LINUX_SYNC_H */ -- cgit v0.10.2 From a64d6a68667e61f34b27df294e25da6a45f31ff2 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:48 -0300 Subject: staging/android: remove redundant comments on sync_merge_data struct sync_merge_data already have documentation on top of the struct definition. No need to duplicate it. Signed-off-by: Gustavo Padovan Reviewed-by: Maarten Lankhorst Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/uapi/sync.h b/drivers/staging/android/uapi/sync.h index 7de5d6a..413303d 100644 --- a/drivers/staging/android/uapi/sync.h +++ b/drivers/staging/android/uapi/sync.h @@ -23,9 +23,9 @@ * @pad: padding for 64-bit alignment, should always be zero */ struct sync_merge_data { - char name[32]; /* name of new fence */ - __s32 fd2; /* fd of second fence */ - __s32 fence; /* fd on newly created fence */ + char name[32]; + __s32 fd2; + __s32 fence; __u32 flags; __u32 pad; }; @@ -33,8 +33,8 @@ struct sync_merge_data { /** * struct sync_fence_info - detailed fence information * @obj_name: name of parent sync_timeline - * @driver_name: name of driver implementing the parent - * @status: status of the fence 0:active 1:signaled <0:error +* @driver_name: name of driver implementing the parent +* @status: status of the fence 0:active 1:signaled <0:error * @flags: fence_info flags * @timestamp_ns: timestamp of status change in nanoseconds */ -- cgit v0.10.2 From 2a7c1db557e111eaeb967baf2d39ecd6e593b767 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:49 -0300 Subject: staging/android: drop sync_file_install() and sync_file_put() These two functions are just wrappers for one line functions, they call fd_install() and fput() respectively, so just get rid of them and use fd_install() and fput() directly for more simplicity. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c index f9c6094..b965e2a 100644 --- a/drivers/staging/android/sync.c +++ b/drivers/staging/android/sync.c @@ -216,18 +216,6 @@ err: } EXPORT_SYMBOL(sync_file_fdget); -void sync_file_put(struct sync_file *sync_file) -{ - fput(sync_file->file); -} -EXPORT_SYMBOL(sync_file_put); - -void sync_file_install(struct sync_file *sync_file, int fd) -{ - fd_install(fd, sync_file->file); -} -EXPORT_SYMBOL(sync_file_install); - static void sync_file_add_pt(struct sync_file *sync_file, int *i, struct fence *fence) { @@ -469,15 +457,15 @@ static long sync_file_ioctl_merge(struct sync_file *sync_file, goto err_put_fence3; } - sync_file_install(fence3, fd); - sync_file_put(fence2); + fd_install(fd, fence3->file); + fput(fence2->file); return 0; err_put_fence3: - sync_file_put(fence3); + fput(fence3->file); err_put_fence2: - sync_file_put(fence2); + fput(fence2->file); err_put_fd: put_unused_fd(fd); diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h index d2a1734..c45cc7b 100644 --- a/drivers/staging/android/sync.h +++ b/drivers/staging/android/sync.h @@ -203,25 +203,6 @@ struct sync_file *sync_file_merge(const char *name, */ struct sync_file *sync_file_fdget(int fd); -/** - * sync_file_put() - puts a reference of a sync_file - * @sync_file: sync_file to put - * - * Puts a reference on @sync_fence. If this is the last reference, the - * sync_fil and all it's sync_pts will be freed - */ -void sync_file_put(struct sync_file *sync_file); - -/** - * sync_file_install() - installs a sync_file into a file descriptor - * @sync_file: sync_file to install - * @fd: file descriptor in which to install the fence - * - * Installs @sync_file into @fd. @fd's should be acquired through - * get_unused_fd_flags(O_CLOEXEC). - */ -void sync_file_install(struct sync_file *sync_file, int fd); - #ifdef CONFIG_DEBUG_FS void sync_timeline_debug_add(struct sync_timeline *obj); diff --git a/drivers/staging/android/sync_debug.c b/drivers/staging/android/sync_debug.c index 5a7ec58..e4b0e41 100644 --- a/drivers/staging/android/sync_debug.c +++ b/drivers/staging/android/sync_debug.c @@ -272,12 +272,12 @@ static long sw_sync_ioctl_create_fence(struct sw_sync_timeline *obj, data.fence = fd; if (copy_to_user((void __user *)arg, &data, sizeof(data))) { - sync_file_put(sync_file); + fput(sync_file->file); err = -EFAULT; goto err; } - sync_file_install(sync_file, fd); + fd_install(fd, sync_file->file); return 0; -- cgit v0.10.2 From 696f74cf543997732d87956c5a88de6e9bd42605 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:50 -0300 Subject: staging/android: move sync_file functions comments to sync.c To keep comments in line with drivers/dma-buf/ move all sync_file comments to sync.c. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c index b965e2a..a89ded0 100644 --- a/drivers/staging/android/sync.c +++ b/drivers/staging/android/sync.c @@ -173,7 +173,14 @@ static void fence_check_cb_func(struct fence *f, struct fence_cb *cb) wake_up_all(&sync_file->wq); } -/* TODO: implement a create which takes more that one fence */ +/** + * sync_fence_create() - creates a sync fence + * @name: name of fence to create + * @fence: fence to add to the sync_fence + * + * Creates a sync_file containg @fence. Once this is called, the sync_file + * takes ownership of @fence. + */ struct sync_file *sync_file_create(const char *name, struct fence *fence) { struct sync_file *sync_file; @@ -198,6 +205,13 @@ struct sync_file *sync_file_create(const char *name, struct fence *fence) } EXPORT_SYMBOL(sync_file_create); +/** + * sync_file_fdget() - get a sync_file from an fd + * @fd: fd referencing a fence + * + * Ensures @fd references a valid sync_file, increments the refcount of the + * backing file. Returns the sync_file or NULL in case of error. + */ struct sync_file *sync_file_fdget(int fd) { struct file *file = fget(fd); @@ -229,6 +243,16 @@ static void sync_file_add_pt(struct sync_file *sync_file, int *i, } } +/** + * sync_file_merge() - merge two sync_files + * @name: name of new fence + * @a: sync_file a + * @b: sync_file b + * + * Creates a new sync_file which contains copies of all the fences in both + * @a and @b. @a and @b remain valid, independent sync_file. Returns the + * new merged sync_file or NULL in case of error. + */ struct sync_file *sync_file_merge(const char *name, struct sync_file *a, struct sync_file *b) { diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h index c45cc7b..925fba5 100644 --- a/drivers/staging/android/sync.h +++ b/drivers/staging/android/sync.h @@ -167,40 +167,9 @@ void sync_timeline_signal(struct sync_timeline *obj); */ struct fence *sync_pt_create(struct sync_timeline *parent, int size); -/** - * sync_fence_create() - creates a sync fence - * @name: name of fence to create - * @fence: fence to add to the sync_fence - * - * Creates a sync_file containg @fence. Once this is called, the sync_file - * takes ownership of @fence. - */ struct sync_file *sync_file_create(const char *name, struct fence *fence); - -/* - * API for sync_file consumers - */ - -/** - * sync_file_merge() - merge two sync_files - * @name: name of new fence - * @a: sync_file a - * @b: sync_file b - * - * Creates a new sync_file which contains copies of all the fences in both - * @a and @b. @a and @b remain valid, independent sync_file. Returns the - * new merged sync_file or NULL in case of error. - */ struct sync_file *sync_file_merge(const char *name, struct sync_file *a, struct sync_file *b); - -/** - * sync_file_fdget() - get a sync_file from an fd - * @fd: fd referencing a fence - * - * Ensures @fd references a valid sync_file, increments the refcount of the - * backing file. Returns the sync_file or NULL in case of error. - */ struct sync_file *sync_file_fdget(int fd); #ifdef CONFIG_DEBUG_FS -- cgit v0.10.2 From 4dff14e88ea928eacaa5faacd05d966c04bcecac Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:51 -0300 Subject: staging/android: make sync_file_merge() static There is no plan in the near future to use this function outside of this file so keep it as static. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c index a89ded0..e9bf251 100644 --- a/drivers/staging/android/sync.c +++ b/drivers/staging/android/sync.c @@ -253,8 +253,8 @@ static void sync_file_add_pt(struct sync_file *sync_file, int *i, * @a and @b. @a and @b remain valid, independent sync_file. Returns the * new merged sync_file or NULL in case of error. */ -struct sync_file *sync_file_merge(const char *name, - struct sync_file *a, struct sync_file *b) +static struct sync_file *sync_file_merge(const char *name, struct sync_file *a, + struct sync_file *b) { int num_fences = a->num_fences + b->num_fences; struct sync_file *sync_file; @@ -310,7 +310,6 @@ struct sync_file *sync_file_merge(const char *name, sync_file_debug_add(sync_file); return sync_file; } -EXPORT_SYMBOL(sync_file_merge); static const char *android_fence_get_driver_name(struct fence *fence) { diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h index 925fba5..ffc6df6 100644 --- a/drivers/staging/android/sync.h +++ b/drivers/staging/android/sync.h @@ -168,8 +168,6 @@ void sync_timeline_signal(struct sync_timeline *obj); struct fence *sync_pt_create(struct sync_timeline *parent, int size); struct sync_file *sync_file_create(const char *name, struct fence *fence); -struct sync_file *sync_file_merge(const char *name, - struct sync_file *a, struct sync_file *b); struct sync_file *sync_file_fdget(int fd); #ifdef CONFIG_DEBUG_FS -- cgit v0.10.2 From 10e362c387e45f01cc38f62dec8f0bc3f1d676b5 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:52 -0300 Subject: staging/android: make sync_file_fdget() static There is no plan in the near future to use this function outside of this file so keep it as static. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c index e9bf251..7e0fa20 100644 --- a/drivers/staging/android/sync.c +++ b/drivers/staging/android/sync.c @@ -212,7 +212,7 @@ EXPORT_SYMBOL(sync_file_create); * Ensures @fd references a valid sync_file, increments the refcount of the * backing file. Returns the sync_file or NULL in case of error. */ -struct sync_file *sync_file_fdget(int fd) +static struct sync_file *sync_file_fdget(int fd) { struct file *file = fget(fd); @@ -228,7 +228,6 @@ err: fput(file); return NULL; } -EXPORT_SYMBOL(sync_file_fdget); static void sync_file_add_pt(struct sync_file *sync_file, int *i, struct fence *fence) diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h index ffc6df6..1f164df 100644 --- a/drivers/staging/android/sync.h +++ b/drivers/staging/android/sync.h @@ -168,7 +168,6 @@ void sync_timeline_signal(struct sync_timeline *obj); struct fence *sync_pt_create(struct sync_timeline *parent, int size); struct sync_file *sync_file_create(const char *name, struct fence *fence); -struct sync_file *sync_file_fdget(int fd); #ifdef CONFIG_DEBUG_FS -- cgit v0.10.2 From d7c3110c28dee67f6766ae26cac629358233a6b4 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:53 -0300 Subject: staging/android: remove name arg from sync_file_create() Simplifies the API to only receive the fence it needs to add to the sync and create a name for the sync_file based on the fence context and seqno. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c index 7e0fa20..5470ae9 100644 --- a/drivers/staging/android/sync.c +++ b/drivers/staging/android/sync.c @@ -136,7 +136,7 @@ struct fence *sync_pt_create(struct sync_timeline *obj, int size) } EXPORT_SYMBOL(sync_pt_create); -static struct sync_file *sync_file_alloc(int size, const char *name) +static struct sync_file *sync_file_alloc(int size) { struct sync_file *sync_file; @@ -150,7 +150,6 @@ static struct sync_file *sync_file_alloc(int size, const char *name) goto err; kref_init(&sync_file->kref); - strlcpy(sync_file->name, name, sizeof(sync_file->name)); init_waitqueue_head(&sync_file->wq); @@ -175,23 +174,25 @@ static void fence_check_cb_func(struct fence *f, struct fence_cb *cb) /** * sync_fence_create() - creates a sync fence - * @name: name of fence to create * @fence: fence to add to the sync_fence * * Creates a sync_file containg @fence. Once this is called, the sync_file * takes ownership of @fence. */ -struct sync_file *sync_file_create(const char *name, struct fence *fence) +struct sync_file *sync_file_create(struct fence *fence) { struct sync_file *sync_file; - sync_file = sync_file_alloc(offsetof(struct sync_file, cbs[1]), - name); + sync_file = sync_file_alloc(offsetof(struct sync_file, cbs[1])); if (!sync_file) return NULL; sync_file->num_fences = 1; atomic_set(&sync_file->status, 1); + snprintf(sync_file->name, sizeof(sync_file->name), "%s-%s%d-%d", + fence->ops->get_driver_name(fence), + fence->ops->get_timeline_name(fence), fence->context, + fence->seqno); sync_file->cbs[0].fence = fence; sync_file->cbs[0].sync_file = sync_file; @@ -260,7 +261,7 @@ static struct sync_file *sync_file_merge(const char *name, struct sync_file *a, int i, i_a, i_b; unsigned long size = offsetof(struct sync_file, cbs[num_fences]); - sync_file = sync_file_alloc(size, name); + sync_file = sync_file_alloc(size); if (!sync_file) return NULL; @@ -306,6 +307,7 @@ static struct sync_file *sync_file_merge(const char *name, struct sync_file *a, atomic_sub(num_fences - i, &sync_file->status); sync_file->num_fences = i; + strlcpy(sync_file->name, name, sizeof(sync_file->name)); sync_file_debug_add(sync_file); return sync_file; } diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h index 1f164df..7dee444 100644 --- a/drivers/staging/android/sync.h +++ b/drivers/staging/android/sync.h @@ -167,7 +167,7 @@ void sync_timeline_signal(struct sync_timeline *obj); */ struct fence *sync_pt_create(struct sync_timeline *parent, int size); -struct sync_file *sync_file_create(const char *name, struct fence *fence); +struct sync_file *sync_file_create(struct fence *fence); #ifdef CONFIG_DEBUG_FS diff --git a/drivers/staging/android/sync_debug.c b/drivers/staging/android/sync_debug.c index e4b0e41..2cab40d 100644 --- a/drivers/staging/android/sync_debug.c +++ b/drivers/staging/android/sync_debug.c @@ -262,8 +262,7 @@ static long sw_sync_ioctl_create_fence(struct sw_sync_timeline *obj, goto err; } - data.name[sizeof(data.name) - 1] = '\0'; - sync_file = sync_file_create(data.name, fence); + sync_file = sync_file_create(fence); if (!sync_file) { fence_put(fence); err = -ENOMEM; -- cgit v0.10.2 From d4cab38e153d62ecd502645390c0289c1b8337df Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:54 -0300 Subject: staging/android: prepare sync_file for de-staging Move its functions and structs to their own file. Also moves function's docs to the .c file. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile index 980d6dc..ebc2df1 100644 --- a/drivers/staging/android/Makefile +++ b/drivers/staging/android/Makefile @@ -4,5 +4,5 @@ obj-y += ion/ obj-$(CONFIG_ASHMEM) += ashmem.o obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER) += lowmemorykiller.o -obj-$(CONFIG_SYNC) += sync.o sync_debug.o +obj-$(CONFIG_SYNC) += sync_file.o sync.o sync_debug.o obj-$(CONFIG_SW_SYNC) += sw_sync.o diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c index 5470ae9..1d14c83 100644 --- a/drivers/staging/android/sync.c +++ b/drivers/staging/android/sync.c @@ -16,10 +16,7 @@ #include #include -#include -#include #include -#include #include #include #include @@ -32,7 +29,6 @@ #include "trace/sync.h" static const struct fence_ops android_fence_ops; -static const struct file_operations sync_file_fops; struct sync_timeline *sync_timeline_create(const struct sync_timeline_ops *ops, int size, const char *name) @@ -136,182 +132,6 @@ struct fence *sync_pt_create(struct sync_timeline *obj, int size) } EXPORT_SYMBOL(sync_pt_create); -static struct sync_file *sync_file_alloc(int size) -{ - struct sync_file *sync_file; - - sync_file = kzalloc(size, GFP_KERNEL); - if (!sync_file) - return NULL; - - sync_file->file = anon_inode_getfile("sync_file", &sync_file_fops, - sync_file, 0); - if (IS_ERR(sync_file->file)) - goto err; - - kref_init(&sync_file->kref); - - init_waitqueue_head(&sync_file->wq); - - return sync_file; - -err: - kfree(sync_file); - return NULL; -} - -static void fence_check_cb_func(struct fence *f, struct fence_cb *cb) -{ - struct sync_file_cb *check; - struct sync_file *sync_file; - - check = container_of(cb, struct sync_file_cb, cb); - sync_file = check->sync_file; - - if (atomic_dec_and_test(&sync_file->status)) - wake_up_all(&sync_file->wq); -} - -/** - * sync_fence_create() - creates a sync fence - * @fence: fence to add to the sync_fence - * - * Creates a sync_file containg @fence. Once this is called, the sync_file - * takes ownership of @fence. - */ -struct sync_file *sync_file_create(struct fence *fence) -{ - struct sync_file *sync_file; - - sync_file = sync_file_alloc(offsetof(struct sync_file, cbs[1])); - if (!sync_file) - return NULL; - - sync_file->num_fences = 1; - atomic_set(&sync_file->status, 1); - snprintf(sync_file->name, sizeof(sync_file->name), "%s-%s%d-%d", - fence->ops->get_driver_name(fence), - fence->ops->get_timeline_name(fence), fence->context, - fence->seqno); - - sync_file->cbs[0].fence = fence; - sync_file->cbs[0].sync_file = sync_file; - if (fence_add_callback(fence, &sync_file->cbs[0].cb, - fence_check_cb_func)) - atomic_dec(&sync_file->status); - - sync_file_debug_add(sync_file); - - return sync_file; -} -EXPORT_SYMBOL(sync_file_create); - -/** - * sync_file_fdget() - get a sync_file from an fd - * @fd: fd referencing a fence - * - * Ensures @fd references a valid sync_file, increments the refcount of the - * backing file. Returns the sync_file or NULL in case of error. - */ -static struct sync_file *sync_file_fdget(int fd) -{ - struct file *file = fget(fd); - - if (!file) - return NULL; - - if (file->f_op != &sync_file_fops) - goto err; - - return file->private_data; - -err: - fput(file); - return NULL; -} - -static void sync_file_add_pt(struct sync_file *sync_file, int *i, - struct fence *fence) -{ - sync_file->cbs[*i].fence = fence; - sync_file->cbs[*i].sync_file = sync_file; - - if (!fence_add_callback(fence, &sync_file->cbs[*i].cb, - fence_check_cb_func)) { - fence_get(fence); - (*i)++; - } -} - -/** - * sync_file_merge() - merge two sync_files - * @name: name of new fence - * @a: sync_file a - * @b: sync_file b - * - * Creates a new sync_file which contains copies of all the fences in both - * @a and @b. @a and @b remain valid, independent sync_file. Returns the - * new merged sync_file or NULL in case of error. - */ -static struct sync_file *sync_file_merge(const char *name, struct sync_file *a, - struct sync_file *b) -{ - int num_fences = a->num_fences + b->num_fences; - struct sync_file *sync_file; - int i, i_a, i_b; - unsigned long size = offsetof(struct sync_file, cbs[num_fences]); - - sync_file = sync_file_alloc(size); - if (!sync_file) - return NULL; - - atomic_set(&sync_file->status, num_fences); - - /* - * Assume sync_file a and b are both ordered and have no - * duplicates with the same context. - * - * If a sync_file can only be created with sync_file_merge - * and sync_file_create, this is a reasonable assumption. - */ - for (i = i_a = i_b = 0; i_a < a->num_fences && i_b < b->num_fences; ) { - struct fence *pt_a = a->cbs[i_a].fence; - struct fence *pt_b = b->cbs[i_b].fence; - - if (pt_a->context < pt_b->context) { - sync_file_add_pt(sync_file, &i, pt_a); - - i_a++; - } else if (pt_a->context > pt_b->context) { - sync_file_add_pt(sync_file, &i, pt_b); - - i_b++; - } else { - if (pt_a->seqno - pt_b->seqno <= INT_MAX) - sync_file_add_pt(sync_file, &i, pt_a); - else - sync_file_add_pt(sync_file, &i, pt_b); - - i_a++; - i_b++; - } - } - - for (; i_a < a->num_fences; i_a++) - sync_file_add_pt(sync_file, &i, a->cbs[i_a].fence); - - for (; i_b < b->num_fences; i_b++) - sync_file_add_pt(sync_file, &i, b->cbs[i_b].fence); - - if (num_fences > i) - atomic_sub(num_fences - i, &sync_file->status); - sync_file->num_fences = i; - - strlcpy(sync_file->name, name, sizeof(sync_file->name)); - sync_file_debug_add(sync_file); - return sync_file; -} - static const char *android_fence_get_driver_name(struct fence *fence) { struct sync_timeline *parent = fence_parent(fence); @@ -399,197 +219,3 @@ static const struct fence_ops android_fence_ops = { .fence_value_str = android_fence_value_str, .timeline_value_str = android_fence_timeline_value_str, }; - -static void sync_file_free(struct kref *kref) -{ - struct sync_file *sync_file = container_of(kref, struct sync_file, - kref); - int i; - - for (i = 0; i < sync_file->num_fences; ++i) { - fence_remove_callback(sync_file->cbs[i].fence, - &sync_file->cbs[i].cb); - fence_put(sync_file->cbs[i].fence); - } - - kfree(sync_file); -} - -static int sync_file_release(struct inode *inode, struct file *file) -{ - struct sync_file *sync_file = file->private_data; - - sync_file_debug_remove(sync_file); - - kref_put(&sync_file->kref, sync_file_free); - return 0; -} - -static unsigned int sync_file_poll(struct file *file, poll_table *wait) -{ - struct sync_file *sync_file = file->private_data; - int status; - - poll_wait(file, &sync_file->wq, wait); - - status = atomic_read(&sync_file->status); - - if (!status) - return POLLIN; - if (status < 0) - return POLLERR; - return 0; -} - -static long sync_file_ioctl_merge(struct sync_file *sync_file, - unsigned long arg) -{ - int fd = get_unused_fd_flags(O_CLOEXEC); - int err; - struct sync_file *fence2, *fence3; - struct sync_merge_data data; - - if (fd < 0) - return fd; - - if (copy_from_user(&data, (void __user *)arg, sizeof(data))) { - err = -EFAULT; - goto err_put_fd; - } - - if (data.flags || data.pad) { - err = -EINVAL; - goto err_put_fd; - } - - fence2 = sync_file_fdget(data.fd2); - if (!fence2) { - err = -ENOENT; - goto err_put_fd; - } - - data.name[sizeof(data.name) - 1] = '\0'; - fence3 = sync_file_merge(data.name, sync_file, fence2); - if (!fence3) { - err = -ENOMEM; - goto err_put_fence2; - } - - data.fence = fd; - if (copy_to_user((void __user *)arg, &data, sizeof(data))) { - err = -EFAULT; - goto err_put_fence3; - } - - fd_install(fd, fence3->file); - fput(fence2->file); - return 0; - -err_put_fence3: - fput(fence3->file); - -err_put_fence2: - fput(fence2->file); - -err_put_fd: - put_unused_fd(fd); - return err; -} - -static void sync_fill_fence_info(struct fence *fence, - struct sync_fence_info *info) -{ - strlcpy(info->obj_name, fence->ops->get_timeline_name(fence), - sizeof(info->obj_name)); - strlcpy(info->driver_name, fence->ops->get_driver_name(fence), - sizeof(info->driver_name)); - if (fence_is_signaled(fence)) - info->status = fence->status >= 0 ? 1 : fence->status; - else - info->status = 0; - info->timestamp_ns = ktime_to_ns(fence->timestamp); -} - -static long sync_file_ioctl_fence_info(struct sync_file *sync_file, - unsigned long arg) -{ - struct sync_file_info info; - struct sync_fence_info *fence_info = NULL; - __u32 size; - int ret, i; - - if (copy_from_user(&info, (void __user *)arg, sizeof(info))) - return -EFAULT; - - if (info.flags || info.pad) - return -EINVAL; - - /* - * Passing num_fences = 0 means that userspace doesn't want to - * retrieve any sync_fence_info. If num_fences = 0 we skip filling - * sync_fence_info and return the actual number of fences on - * info->num_fences. - */ - if (!info.num_fences) - goto no_fences; - - if (info.num_fences < sync_file->num_fences) - return -EINVAL; - - size = sync_file->num_fences * sizeof(*fence_info); - fence_info = kzalloc(size, GFP_KERNEL); - if (!fence_info) - return -ENOMEM; - - for (i = 0; i < sync_file->num_fences; ++i) - sync_fill_fence_info(sync_file->cbs[i].fence, &fence_info[i]); - - if (copy_to_user(u64_to_user_ptr(info.sync_fence_info), fence_info, - size)) { - ret = -EFAULT; - goto out; - } - -no_fences: - strlcpy(info.name, sync_file->name, sizeof(info.name)); - info.status = atomic_read(&sync_file->status); - if (info.status >= 0) - info.status = !info.status; - - info.num_fences = sync_file->num_fences; - - if (copy_to_user((void __user *)arg, &info, sizeof(info))) - ret = -EFAULT; - else - ret = 0; - -out: - kfree(fence_info); - - return ret; -} - -static long sync_file_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - struct sync_file *sync_file = file->private_data; - - switch (cmd) { - case SYNC_IOC_MERGE: - return sync_file_ioctl_merge(sync_file, arg); - - case SYNC_IOC_FILE_INFO: - return sync_file_ioctl_fence_info(sync_file, arg); - - default: - return -ENOTTY; - } -} - -static const struct file_operations sync_file_fops = { - .release = sync_file_release, - .poll = sync_file_poll, - .unlocked_ioctl = sync_file_ioctl, - .compat_ioctl = sync_file_ioctl, -}; - diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h index 7dee444..df44abb 100644 --- a/drivers/staging/android/sync.h +++ b/drivers/staging/android/sync.h @@ -20,10 +20,10 @@ #include #include -#include "uapi/sync.h" +#include "sync_file.h" +#include "uapi/sync_file.h" struct sync_timeline; -struct sync_file; /** * struct sync_timeline_ops - sync object implementation ops @@ -86,38 +86,6 @@ static inline struct sync_timeline *fence_parent(struct fence *fence) child_list_lock); } -struct sync_file_cb { - struct fence_cb cb; - struct fence *fence; - struct sync_file *sync_file; -}; - -/** - * struct sync_file - sync file to export to the userspace - * @file: file representing this fence - * @kref: reference count on fence. - * @name: name of sync_file. Useful for debugging - * @sync_file_list: membership in global file list - * @num_fences number of sync_pts in the fence - * @wq: wait queue for fence signaling - * @status: 0: signaled, >0:active, <0: error - * @cbs: sync_pts callback information - */ -struct sync_file { - struct file *file; - struct kref kref; - char name[32]; -#ifdef CONFIG_DEBUG_FS - struct list_head sync_file_list; -#endif - int num_fences; - - wait_queue_head_t wq; - atomic_t status; - - struct sync_file_cb cbs[]; -}; - /* * API for sync_timeline implementers */ @@ -167,8 +135,6 @@ void sync_timeline_signal(struct sync_timeline *obj); */ struct fence *sync_pt_create(struct sync_timeline *parent, int size); -struct sync_file *sync_file_create(struct fence *fence); - #ifdef CONFIG_DEBUG_FS void sync_timeline_debug_add(struct sync_timeline *obj); diff --git a/drivers/staging/android/sync_debug.c b/drivers/staging/android/sync_debug.c index 2cab40d..8b55218 100644 --- a/drivers/staging/android/sync_debug.c +++ b/drivers/staging/android/sync_debug.c @@ -26,6 +26,7 @@ #include #include #include +#include "sync_file.h" #include "sw_sync.h" #ifdef CONFIG_DEBUG_FS diff --git a/drivers/staging/android/sync_file.c b/drivers/staging/android/sync_file.c new file mode 100644 index 0000000..2c724ec --- /dev/null +++ b/drivers/staging/android/sync_file.c @@ -0,0 +1,394 @@ +/* + * drivers/dma-buf/sync_file.c + * + * Copyright (C) 2012 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "sync_file.h" +#include "uapi/sync_file.h" + +static const struct file_operations sync_file_fops; + +static struct sync_file *sync_file_alloc(int size) +{ + struct sync_file *sync_file; + + sync_file = kzalloc(size, GFP_KERNEL); + if (!sync_file) + return NULL; + + sync_file->file = anon_inode_getfile("sync_file", &sync_file_fops, + sync_file, 0); + if (IS_ERR(sync_file->file)) + goto err; + + kref_init(&sync_file->kref); + + init_waitqueue_head(&sync_file->wq); + + return sync_file; + +err: + kfree(sync_file); + return NULL; +} + +static void fence_check_cb_func(struct fence *f, struct fence_cb *cb) +{ + struct sync_file_cb *check; + struct sync_file *sync_file; + + check = container_of(cb, struct sync_file_cb, cb); + sync_file = check->sync_file; + + if (atomic_dec_and_test(&sync_file->status)) + wake_up_all(&sync_file->wq); +} + +/** + * sync_fence_create() - creates a sync fence + * @fence: fence to add to the sync_fence + * + * Creates a sync_file containg @fence. Once this is called, the sync_file + * takes ownership of @fence. + */ +struct sync_file *sync_file_create(struct fence *fence) +{ + struct sync_file *sync_file; + + sync_file = sync_file_alloc(offsetof(struct sync_file, cbs[1])); + if (!sync_file) + return NULL; + + sync_file->num_fences = 1; + atomic_set(&sync_file->status, 1); + snprintf(sync_file->name, sizeof(sync_file->name), "%s-%s%d-%d", + fence->ops->get_driver_name(fence), + fence->ops->get_timeline_name(fence), fence->context, + fence->seqno); + + sync_file->cbs[0].fence = fence; + sync_file->cbs[0].sync_file = sync_file; + if (fence_add_callback(fence, &sync_file->cbs[0].cb, + fence_check_cb_func)) + atomic_dec(&sync_file->status); + + return sync_file; +} +EXPORT_SYMBOL(sync_file_create); + +/** + * sync_file_fdget() - get a sync_file from an fd + * @fd: fd referencing a fence + * + * Ensures @fd references a valid sync_file, increments the refcount of the + * backing file. Returns the sync_file or NULL in case of error. + */ +static struct sync_file *sync_file_fdget(int fd) +{ + struct file *file = fget(fd); + + if (!file) + return NULL; + + if (file->f_op != &sync_file_fops) + goto err; + + return file->private_data; + +err: + fput(file); + return NULL; +} + +static void sync_file_add_pt(struct sync_file *sync_file, int *i, + struct fence *fence) +{ + sync_file->cbs[*i].fence = fence; + sync_file->cbs[*i].sync_file = sync_file; + + if (!fence_add_callback(fence, &sync_file->cbs[*i].cb, + fence_check_cb_func)) { + fence_get(fence); + (*i)++; + } +} + +/** + * sync_file_merge() - merge two sync_files + * @name: name of new fence + * @a: sync_file a + * @b: sync_file b + * + * Creates a new sync_file which contains copies of all the fences in both + * @a and @b. @a and @b remain valid, independent sync_file. Returns the + * new merged sync_file or NULL in case of error. + */ +static struct sync_file *sync_file_merge(const char *name, struct sync_file *a, + struct sync_file *b) +{ + int num_fences = a->num_fences + b->num_fences; + struct sync_file *sync_file; + int i, i_a, i_b; + unsigned long size = offsetof(struct sync_file, cbs[num_fences]); + + sync_file = sync_file_alloc(size); + if (!sync_file) + return NULL; + + atomic_set(&sync_file->status, num_fences); + + /* + * Assume sync_file a and b are both ordered and have no + * duplicates with the same context. + * + * If a sync_file can only be created with sync_file_merge + * and sync_file_create, this is a reasonable assumption. + */ + for (i = i_a = i_b = 0; i_a < a->num_fences && i_b < b->num_fences; ) { + struct fence *pt_a = a->cbs[i_a].fence; + struct fence *pt_b = b->cbs[i_b].fence; + + if (pt_a->context < pt_b->context) { + sync_file_add_pt(sync_file, &i, pt_a); + + i_a++; + } else if (pt_a->context > pt_b->context) { + sync_file_add_pt(sync_file, &i, pt_b); + + i_b++; + } else { + if (pt_a->seqno - pt_b->seqno <= INT_MAX) + sync_file_add_pt(sync_file, &i, pt_a); + else + sync_file_add_pt(sync_file, &i, pt_b); + + i_a++; + i_b++; + } + } + + for (; i_a < a->num_fences; i_a++) + sync_file_add_pt(sync_file, &i, a->cbs[i_a].fence); + + for (; i_b < b->num_fences; i_b++) + sync_file_add_pt(sync_file, &i, b->cbs[i_b].fence); + + if (num_fences > i) + atomic_sub(num_fences - i, &sync_file->status); + sync_file->num_fences = i; + + strlcpy(sync_file->name, name, sizeof(sync_file->name)); + return sync_file; +} + +static void sync_file_free(struct kref *kref) +{ + struct sync_file *sync_file = container_of(kref, struct sync_file, + kref); + int i; + + for (i = 0; i < sync_file->num_fences; ++i) { + fence_remove_callback(sync_file->cbs[i].fence, + &sync_file->cbs[i].cb); + fence_put(sync_file->cbs[i].fence); + } + + kfree(sync_file); +} + +static int sync_file_release(struct inode *inode, struct file *file) +{ + struct sync_file *sync_file = file->private_data; + + kref_put(&sync_file->kref, sync_file_free); + return 0; +} + +static unsigned int sync_file_poll(struct file *file, poll_table *wait) +{ + struct sync_file *sync_file = file->private_data; + int status; + + poll_wait(file, &sync_file->wq, wait); + + status = atomic_read(&sync_file->status); + + if (!status) + return POLLIN; + if (status < 0) + return POLLERR; + return 0; +} + +static long sync_file_ioctl_merge(struct sync_file *sync_file, + unsigned long arg) +{ + int fd = get_unused_fd_flags(O_CLOEXEC); + int err; + struct sync_file *fence2, *fence3; + struct sync_merge_data data; + + if (fd < 0) + return fd; + + if (copy_from_user(&data, (void __user *)arg, sizeof(data))) { + err = -EFAULT; + goto err_put_fd; + } + + if (data.flags || data.pad) { + err = -EINVAL; + goto err_put_fd; + } + + fence2 = sync_file_fdget(data.fd2); + if (!fence2) { + err = -ENOENT; + goto err_put_fd; + } + + data.name[sizeof(data.name) - 1] = '\0'; + fence3 = sync_file_merge(data.name, sync_file, fence2); + if (!fence3) { + err = -ENOMEM; + goto err_put_fence2; + } + + data.fence = fd; + if (copy_to_user((void __user *)arg, &data, sizeof(data))) { + err = -EFAULT; + goto err_put_fence3; + } + + fd_install(fd, fence3->file); + fput(fence2->file); + return 0; + +err_put_fence3: + fput(fence3->file); + +err_put_fence2: + fput(fence2->file); + +err_put_fd: + put_unused_fd(fd); + return err; +} + +static void sync_fill_fence_info(struct fence *fence, + struct sync_fence_info *info) +{ + strlcpy(info->obj_name, fence->ops->get_timeline_name(fence), + sizeof(info->obj_name)); + strlcpy(info->driver_name, fence->ops->get_driver_name(fence), + sizeof(info->driver_name)); + if (fence_is_signaled(fence)) + info->status = fence->status >= 0 ? 1 : fence->status; + else + info->status = 0; + info->timestamp_ns = ktime_to_ns(fence->timestamp); +} + +static long sync_file_ioctl_fence_info(struct sync_file *sync_file, + unsigned long arg) +{ + struct sync_file_info info; + struct sync_fence_info *fence_info = NULL; + __u32 size; + int ret, i; + + if (copy_from_user(&info, (void __user *)arg, sizeof(info))) + return -EFAULT; + + if (info.flags || info.pad) + return -EINVAL; + + /* + * Passing num_fences = 0 means that userspace doesn't want to + * retrieve any sync_fence_info. If num_fences = 0 we skip filling + * sync_fence_info and return the actual number of fences on + * info->num_fences. + */ + if (!info.num_fences) + goto no_fences; + + if (info.num_fences < sync_file->num_fences) + return -EINVAL; + + size = sync_file->num_fences * sizeof(*fence_info); + fence_info = kzalloc(size, GFP_KERNEL); + if (!fence_info) + return -ENOMEM; + + for (i = 0; i < sync_file->num_fences; ++i) + sync_fill_fence_info(sync_file->cbs[i].fence, &fence_info[i]); + + if (copy_to_user(u64_to_user_ptr(info.sync_fence_info), fence_info, + size)) { + ret = -EFAULT; + goto out; + } + +no_fences: + strlcpy(info.name, sync_file->name, sizeof(info.name)); + info.status = atomic_read(&sync_file->status); + if (info.status >= 0) + info.status = !info.status; + + info.num_fences = sync_file->num_fences; + + if (copy_to_user((void __user *)arg, &info, sizeof(info))) + ret = -EFAULT; + else + ret = 0; + +out: + kfree(fence_info); + + return ret; +} + +static long sync_file_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) +{ + struct sync_file *sync_file = file->private_data; + + switch (cmd) { + case SYNC_IOC_MERGE: + return sync_file_ioctl_merge(sync_file, arg); + + case SYNC_IOC_FILE_INFO: + return sync_file_ioctl_fence_info(sync_file, arg); + + default: + return -ENOTTY; + } +} + +static const struct file_operations sync_file_fops = { + .release = sync_file_release, + .poll = sync_file_poll, + .unlocked_ioctl = sync_file_ioctl, + .compat_ioctl = sync_file_ioctl, +}; + diff --git a/drivers/staging/android/sync_file.h b/drivers/staging/android/sync_file.h new file mode 100644 index 0000000..8a1b546 --- /dev/null +++ b/drivers/staging/android/sync_file.h @@ -0,0 +1,57 @@ +/* + * include/linux/sync_file.h + * + * Copyright (C) 2012 Google, Inc. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef _LINUX_SYNC_FILE_H +#define _LINUX_SYNC_FILE_H + +#include +#include +#include +#include +#include +#include + +struct sync_file_cb { + struct fence_cb cb; + struct fence *fence; + struct sync_file *sync_file; +}; + +/** + * struct sync_file - sync file to export to the userspace + * @file: file representing this fence + * @kref: reference count on fence. + * @name: name of sync_file. Useful for debugging + * @sync_file_list: membership in global file list + * @num_fences number of sync_pts in the fence + * @wq: wait queue for fence signaling + * @status: 0: signaled, >0:active, <0: error + * @cbs: sync_pts callback information + */ +struct sync_file { + struct file *file; + struct kref kref; + char name[32]; +#ifdef CONFIG_DEBUG_FS + struct list_head sync_file_list; +#endif + int num_fences; + + wait_queue_head_t wq; + atomic_t status; + + struct sync_file_cb cbs[]; +}; + +struct sync_file *sync_file_create(struct fence *fence); + +#endif /* _LINUX_SYNC_H */ diff --git a/drivers/staging/android/uapi/sync.h b/drivers/staging/android/uapi/sync.h deleted file mode 100644 index 413303d..0000000 --- a/drivers/staging/android/uapi/sync.h +++ /dev/null @@ -1,100 +0,0 @@ -/* - * Copyright (C) 2012 Google, Inc. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#ifndef _UAPI_LINUX_SYNC_H -#define _UAPI_LINUX_SYNC_H - -#include -#include - -/** - * struct sync_merge_data - data passed to merge ioctl - * @name: name of new fence - * @fd2: file descriptor of second fence - * @fence: returns the fd of the new fence to userspace - * @flags: merge_data flags - * @pad: padding for 64-bit alignment, should always be zero - */ -struct sync_merge_data { - char name[32]; - __s32 fd2; - __s32 fence; - __u32 flags; - __u32 pad; -}; - -/** - * struct sync_fence_info - detailed fence information - * @obj_name: name of parent sync_timeline -* @driver_name: name of driver implementing the parent -* @status: status of the fence 0:active 1:signaled <0:error - * @flags: fence_info flags - * @timestamp_ns: timestamp of status change in nanoseconds - */ -struct sync_fence_info { - char obj_name[32]; - char driver_name[32]; - __s32 status; - __u32 flags; - __u64 timestamp_ns; -}; - -/** - * struct sync_file_info - data returned from fence info ioctl - * @name: name of fence - * @status: status of fence. 1: signaled 0:active <0:error - * @flags: sync_file_info flags - * @num_fences number of fences in the sync_file - * @pad: padding for 64-bit alignment, should always be zero - * @sync_fence_info: pointer to array of structs sync_fence_info with all - * fences in the sync_file - */ -struct sync_file_info { - char name[32]; - __s32 status; - __u32 flags; - __u32 num_fences; - __u32 pad; - - __u64 sync_fence_info; -}; - -#define SYNC_IOC_MAGIC '>' - -/** - * Opcodes 0, 1 and 2 were burned during a API change to avoid users of the - * old API to get weird errors when trying to handling sync_files. The API - * change happened during the de-stage of the Sync Framework when there was - * no upstream users available. - */ - -/** - * DOC: SYNC_IOC_MERGE - merge two fences - * - * Takes a struct sync_merge_data. Creates a new fence containing copies of - * the sync_pts in both the calling fd and sync_merge_data.fd2. Returns the - * new fence's fd in sync_merge_data.fence - */ -#define SYNC_IOC_MERGE _IOWR(SYNC_IOC_MAGIC, 3, struct sync_merge_data) - -/** - * DOC: SYNC_IOC_FENCE_INFO - get detailed information on a fence - * - * Takes a struct sync_file_info_data with extra space allocated for pt_info. - * Caller should write the size of the buffer into len. On return, len is - * updated to reflect the total size of the sync_file_info_data including - * pt_info. - * - * pt_info is a buffer containing sync_pt_infos for every sync_pt in the fence. - * To iterate over the sync_pt_infos, use the sync_pt_info.len field. - */ -#define SYNC_IOC_FILE_INFO _IOWR(SYNC_IOC_MAGIC, 4, struct sync_file_info) - -#endif /* _UAPI_LINUX_SYNC_H */ diff --git a/drivers/staging/android/uapi/sync_file.h b/drivers/staging/android/uapi/sync_file.h new file mode 100644 index 0000000..413303d --- /dev/null +++ b/drivers/staging/android/uapi/sync_file.h @@ -0,0 +1,100 @@ +/* + * Copyright (C) 2012 Google, Inc. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef _UAPI_LINUX_SYNC_H +#define _UAPI_LINUX_SYNC_H + +#include +#include + +/** + * struct sync_merge_data - data passed to merge ioctl + * @name: name of new fence + * @fd2: file descriptor of second fence + * @fence: returns the fd of the new fence to userspace + * @flags: merge_data flags + * @pad: padding for 64-bit alignment, should always be zero + */ +struct sync_merge_data { + char name[32]; + __s32 fd2; + __s32 fence; + __u32 flags; + __u32 pad; +}; + +/** + * struct sync_fence_info - detailed fence information + * @obj_name: name of parent sync_timeline +* @driver_name: name of driver implementing the parent +* @status: status of the fence 0:active 1:signaled <0:error + * @flags: fence_info flags + * @timestamp_ns: timestamp of status change in nanoseconds + */ +struct sync_fence_info { + char obj_name[32]; + char driver_name[32]; + __s32 status; + __u32 flags; + __u64 timestamp_ns; +}; + +/** + * struct sync_file_info - data returned from fence info ioctl + * @name: name of fence + * @status: status of fence. 1: signaled 0:active <0:error + * @flags: sync_file_info flags + * @num_fences number of fences in the sync_file + * @pad: padding for 64-bit alignment, should always be zero + * @sync_fence_info: pointer to array of structs sync_fence_info with all + * fences in the sync_file + */ +struct sync_file_info { + char name[32]; + __s32 status; + __u32 flags; + __u32 num_fences; + __u32 pad; + + __u64 sync_fence_info; +}; + +#define SYNC_IOC_MAGIC '>' + +/** + * Opcodes 0, 1 and 2 were burned during a API change to avoid users of the + * old API to get weird errors when trying to handling sync_files. The API + * change happened during the de-stage of the Sync Framework when there was + * no upstream users available. + */ + +/** + * DOC: SYNC_IOC_MERGE - merge two fences + * + * Takes a struct sync_merge_data. Creates a new fence containing copies of + * the sync_pts in both the calling fd and sync_merge_data.fd2. Returns the + * new fence's fd in sync_merge_data.fence + */ +#define SYNC_IOC_MERGE _IOWR(SYNC_IOC_MAGIC, 3, struct sync_merge_data) + +/** + * DOC: SYNC_IOC_FENCE_INFO - get detailed information on a fence + * + * Takes a struct sync_file_info_data with extra space allocated for pt_info. + * Caller should write the size of the buffer into len. On return, len is + * updated to reflect the total size of the sync_file_info_data including + * pt_info. + * + * pt_info is a buffer containing sync_pt_infos for every sync_pt in the fence. + * To iterate over the sync_pt_infos, use the sync_pt_info.len field. + */ +#define SYNC_IOC_FILE_INFO _IOWR(SYNC_IOC_MAGIC, 4, struct sync_file_info) + +#endif /* _UAPI_LINUX_SYNC_H */ -- cgit v0.10.2 From c240a714a6ad68458c3caf61ab6216184e52b631 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:55 -0300 Subject: staging/android: improve documentation for sync_file num_fences was missing a colon mark and sync_file_create() now have better description. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/sync_file.c b/drivers/staging/android/sync_file.c index 2c724ec..d9da3a4 100644 --- a/drivers/staging/android/sync_file.c +++ b/drivers/staging/android/sync_file.c @@ -65,11 +65,12 @@ static void fence_check_cb_func(struct fence *f, struct fence_cb *cb) } /** - * sync_fence_create() - creates a sync fence + * sync_file_create() - creates a sync file * @fence: fence to add to the sync_fence * * Creates a sync_file containg @fence. Once this is called, the sync_file - * takes ownership of @fence. + * takes ownership of @fence. The sync_file can be released with + * fput(sync_file->file). Returns the sync_file or NULL in case of error. */ struct sync_file *sync_file_create(struct fence *fence) { diff --git a/drivers/staging/android/sync_file.h b/drivers/staging/android/sync_file.h index 8a1b546..c6ffe8b 100644 --- a/drivers/staging/android/sync_file.h +++ b/drivers/staging/android/sync_file.h @@ -32,7 +32,7 @@ struct sync_file_cb { * @kref: reference count on fence. * @name: name of sync_file. Useful for debugging * @sync_file_list: membership in global file list - * @num_fences number of sync_pts in the fence + * @num_fences: number of sync_pts in the fence * @wq: wait queue for fence signaling * @status: 0: signaled, >0:active, <0: error * @cbs: sync_pts callback information -- cgit v0.10.2 From 92e06213f11a87effad8bdd4d910958b89eec044 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:56 -0300 Subject: staging/android: style fix: alignment to match the open parenthesis Fix checks reported by checkpatch.pl. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/sync_file.c b/drivers/staging/android/sync_file.c index d9da3a4..eabf90d 100644 --- a/drivers/staging/android/sync_file.c +++ b/drivers/staging/android/sync_file.c @@ -242,7 +242,7 @@ static unsigned int sync_file_poll(struct file *file, poll_table *wait) } static long sync_file_ioctl_merge(struct sync_file *sync_file, - unsigned long arg) + unsigned long arg) { int fd = get_unused_fd_flags(O_CLOEXEC); int err; @@ -297,7 +297,7 @@ err_put_fd: } static void sync_fill_fence_info(struct fence *fence, - struct sync_fence_info *info) + struct sync_fence_info *info) { strlcpy(info->obj_name, fence->ops->get_timeline_name(fence), sizeof(info->obj_name)); @@ -311,7 +311,7 @@ static void sync_fill_fence_info(struct fence *fence, } static long sync_file_ioctl_fence_info(struct sync_file *sync_file, - unsigned long arg) + unsigned long arg) { struct sync_file_info info; struct sync_fence_info *fence_info = NULL; @@ -370,7 +370,7 @@ out: } static long sync_file_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) + unsigned long arg) { struct sync_file *sync_file = file->private_data; -- cgit v0.10.2 From 460bfc41fd52959311ed0328163f785e023857af Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:57 -0300 Subject: dma-buf/sync_file: de-stage sync_file headers Move sync_file headers file to include/ dir. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/sync.h b/drivers/staging/android/sync.h index df44abb..b56885c 100644 --- a/drivers/staging/android/sync.h +++ b/drivers/staging/android/sync.h @@ -20,8 +20,8 @@ #include #include -#include "sync_file.h" -#include "uapi/sync_file.h" +#include +#include struct sync_timeline; diff --git a/drivers/staging/android/sync_debug.c b/drivers/staging/android/sync_debug.c index 8b55218..5f57499 100644 --- a/drivers/staging/android/sync_debug.c +++ b/drivers/staging/android/sync_debug.c @@ -26,7 +26,7 @@ #include #include #include -#include "sync_file.h" +#include #include "sw_sync.h" #ifdef CONFIG_DEBUG_FS diff --git a/drivers/staging/android/sync_file.c b/drivers/staging/android/sync_file.c index eabf90d..f08cf2d 100644 --- a/drivers/staging/android/sync_file.c +++ b/drivers/staging/android/sync_file.c @@ -23,8 +23,8 @@ #include #include #include -#include "sync_file.h" -#include "uapi/sync_file.h" +#include +#include static const struct file_operations sync_file_fops; diff --git a/drivers/staging/android/sync_file.h b/drivers/staging/android/sync_file.h deleted file mode 100644 index c6ffe8b..0000000 --- a/drivers/staging/android/sync_file.h +++ /dev/null @@ -1,57 +0,0 @@ -/* - * include/linux/sync_file.h - * - * Copyright (C) 2012 Google, Inc. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#ifndef _LINUX_SYNC_FILE_H -#define _LINUX_SYNC_FILE_H - -#include -#include -#include -#include -#include -#include - -struct sync_file_cb { - struct fence_cb cb; - struct fence *fence; - struct sync_file *sync_file; -}; - -/** - * struct sync_file - sync file to export to the userspace - * @file: file representing this fence - * @kref: reference count on fence. - * @name: name of sync_file. Useful for debugging - * @sync_file_list: membership in global file list - * @num_fences: number of sync_pts in the fence - * @wq: wait queue for fence signaling - * @status: 0: signaled, >0:active, <0: error - * @cbs: sync_pts callback information - */ -struct sync_file { - struct file *file; - struct kref kref; - char name[32]; -#ifdef CONFIG_DEBUG_FS - struct list_head sync_file_list; -#endif - int num_fences; - - wait_queue_head_t wq; - atomic_t status; - - struct sync_file_cb cbs[]; -}; - -struct sync_file *sync_file_create(struct fence *fence); - -#endif /* _LINUX_SYNC_H */ diff --git a/drivers/staging/android/uapi/sync_file.h b/drivers/staging/android/uapi/sync_file.h deleted file mode 100644 index 413303d..0000000 --- a/drivers/staging/android/uapi/sync_file.h +++ /dev/null @@ -1,100 +0,0 @@ -/* - * Copyright (C) 2012 Google, Inc. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#ifndef _UAPI_LINUX_SYNC_H -#define _UAPI_LINUX_SYNC_H - -#include -#include - -/** - * struct sync_merge_data - data passed to merge ioctl - * @name: name of new fence - * @fd2: file descriptor of second fence - * @fence: returns the fd of the new fence to userspace - * @flags: merge_data flags - * @pad: padding for 64-bit alignment, should always be zero - */ -struct sync_merge_data { - char name[32]; - __s32 fd2; - __s32 fence; - __u32 flags; - __u32 pad; -}; - -/** - * struct sync_fence_info - detailed fence information - * @obj_name: name of parent sync_timeline -* @driver_name: name of driver implementing the parent -* @status: status of the fence 0:active 1:signaled <0:error - * @flags: fence_info flags - * @timestamp_ns: timestamp of status change in nanoseconds - */ -struct sync_fence_info { - char obj_name[32]; - char driver_name[32]; - __s32 status; - __u32 flags; - __u64 timestamp_ns; -}; - -/** - * struct sync_file_info - data returned from fence info ioctl - * @name: name of fence - * @status: status of fence. 1: signaled 0:active <0:error - * @flags: sync_file_info flags - * @num_fences number of fences in the sync_file - * @pad: padding for 64-bit alignment, should always be zero - * @sync_fence_info: pointer to array of structs sync_fence_info with all - * fences in the sync_file - */ -struct sync_file_info { - char name[32]; - __s32 status; - __u32 flags; - __u32 num_fences; - __u32 pad; - - __u64 sync_fence_info; -}; - -#define SYNC_IOC_MAGIC '>' - -/** - * Opcodes 0, 1 and 2 were burned during a API change to avoid users of the - * old API to get weird errors when trying to handling sync_files. The API - * change happened during the de-stage of the Sync Framework when there was - * no upstream users available. - */ - -/** - * DOC: SYNC_IOC_MERGE - merge two fences - * - * Takes a struct sync_merge_data. Creates a new fence containing copies of - * the sync_pts in both the calling fd and sync_merge_data.fd2. Returns the - * new fence's fd in sync_merge_data.fence - */ -#define SYNC_IOC_MERGE _IOWR(SYNC_IOC_MAGIC, 3, struct sync_merge_data) - -/** - * DOC: SYNC_IOC_FENCE_INFO - get detailed information on a fence - * - * Takes a struct sync_file_info_data with extra space allocated for pt_info. - * Caller should write the size of the buffer into len. On return, len is - * updated to reflect the total size of the sync_file_info_data including - * pt_info. - * - * pt_info is a buffer containing sync_pt_infos for every sync_pt in the fence. - * To iterate over the sync_pt_infos, use the sync_pt_info.len field. - */ -#define SYNC_IOC_FILE_INFO _IOWR(SYNC_IOC_MAGIC, 4, struct sync_file_info) - -#endif /* _UAPI_LINUX_SYNC_H */ diff --git a/include/linux/sync_file.h b/include/linux/sync_file.h new file mode 100644 index 0000000..c6ffe8b --- /dev/null +++ b/include/linux/sync_file.h @@ -0,0 +1,57 @@ +/* + * include/linux/sync_file.h + * + * Copyright (C) 2012 Google, Inc. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef _LINUX_SYNC_FILE_H +#define _LINUX_SYNC_FILE_H + +#include +#include +#include +#include +#include +#include + +struct sync_file_cb { + struct fence_cb cb; + struct fence *fence; + struct sync_file *sync_file; +}; + +/** + * struct sync_file - sync file to export to the userspace + * @file: file representing this fence + * @kref: reference count on fence. + * @name: name of sync_file. Useful for debugging + * @sync_file_list: membership in global file list + * @num_fences: number of sync_pts in the fence + * @wq: wait queue for fence signaling + * @status: 0: signaled, >0:active, <0: error + * @cbs: sync_pts callback information + */ +struct sync_file { + struct file *file; + struct kref kref; + char name[32]; +#ifdef CONFIG_DEBUG_FS + struct list_head sync_file_list; +#endif + int num_fences; + + wait_queue_head_t wq; + atomic_t status; + + struct sync_file_cb cbs[]; +}; + +struct sync_file *sync_file_create(struct fence *fence); + +#endif /* _LINUX_SYNC_H */ diff --git a/include/uapi/linux/sync_file.h b/include/uapi/linux/sync_file.h new file mode 100644 index 0000000..413303d --- /dev/null +++ b/include/uapi/linux/sync_file.h @@ -0,0 +1,100 @@ +/* + * Copyright (C) 2012 Google, Inc. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef _UAPI_LINUX_SYNC_H +#define _UAPI_LINUX_SYNC_H + +#include +#include + +/** + * struct sync_merge_data - data passed to merge ioctl + * @name: name of new fence + * @fd2: file descriptor of second fence + * @fence: returns the fd of the new fence to userspace + * @flags: merge_data flags + * @pad: padding for 64-bit alignment, should always be zero + */ +struct sync_merge_data { + char name[32]; + __s32 fd2; + __s32 fence; + __u32 flags; + __u32 pad; +}; + +/** + * struct sync_fence_info - detailed fence information + * @obj_name: name of parent sync_timeline +* @driver_name: name of driver implementing the parent +* @status: status of the fence 0:active 1:signaled <0:error + * @flags: fence_info flags + * @timestamp_ns: timestamp of status change in nanoseconds + */ +struct sync_fence_info { + char obj_name[32]; + char driver_name[32]; + __s32 status; + __u32 flags; + __u64 timestamp_ns; +}; + +/** + * struct sync_file_info - data returned from fence info ioctl + * @name: name of fence + * @status: status of fence. 1: signaled 0:active <0:error + * @flags: sync_file_info flags + * @num_fences number of fences in the sync_file + * @pad: padding for 64-bit alignment, should always be zero + * @sync_fence_info: pointer to array of structs sync_fence_info with all + * fences in the sync_file + */ +struct sync_file_info { + char name[32]; + __s32 status; + __u32 flags; + __u32 num_fences; + __u32 pad; + + __u64 sync_fence_info; +}; + +#define SYNC_IOC_MAGIC '>' + +/** + * Opcodes 0, 1 and 2 were burned during a API change to avoid users of the + * old API to get weird errors when trying to handling sync_files. The API + * change happened during the de-stage of the Sync Framework when there was + * no upstream users available. + */ + +/** + * DOC: SYNC_IOC_MERGE - merge two fences + * + * Takes a struct sync_merge_data. Creates a new fence containing copies of + * the sync_pts in both the calling fd and sync_merge_data.fd2. Returns the + * new fence's fd in sync_merge_data.fence + */ +#define SYNC_IOC_MERGE _IOWR(SYNC_IOC_MAGIC, 3, struct sync_merge_data) + +/** + * DOC: SYNC_IOC_FENCE_INFO - get detailed information on a fence + * + * Takes a struct sync_file_info_data with extra space allocated for pt_info. + * Caller should write the size of the buffer into len. On return, len is + * updated to reflect the total size of the sync_file_info_data including + * pt_info. + * + * pt_info is a buffer containing sync_pt_infos for every sync_pt in the fence. + * To iterate over the sync_pt_infos, use the sync_pt_info.len field. + */ +#define SYNC_IOC_FILE_INFO _IOWR(SYNC_IOC_MAGIC, 4, struct sync_file_info) + +#endif /* _UAPI_LINUX_SYNC_H */ -- cgit v0.10.2 From 62304fb1fc0801925568e191261b650e1546ce8c Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:58 -0300 Subject: dma-buf/sync_file: de-stage sync_file sync_file is useful to connect one or more fences to the file. The file is used by userspace to track fences between drivers that share DMA bufs. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/Kconfig b/drivers/Kconfig index d2ac339..430f761 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -114,6 +114,8 @@ source "drivers/rtc/Kconfig" source "drivers/dma/Kconfig" +source "drivers/dma-buf/Kconfig" + source "drivers/dca/Kconfig" source "drivers/auxdisplay/Kconfig" diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig new file mode 100644 index 0000000..9824bc4 --- /dev/null +++ b/drivers/dma-buf/Kconfig @@ -0,0 +1,11 @@ +menu "DMABUF options" + +config SYNC_FILE + bool "sync_file support for fences" + default n + select ANON_INODES + select DMA_SHARED_BUFFER + ---help--- + This option enables the fence framework synchronization to export + sync_files to userspace that can represent one or more fences. +endmenu diff --git a/drivers/dma-buf/Makefile b/drivers/dma-buf/Makefile index 57a675f..4a424ec 100644 --- a/drivers/dma-buf/Makefile +++ b/drivers/dma-buf/Makefile @@ -1 +1,2 @@ obj-y := dma-buf.o fence.o reservation.o seqno-fence.o +obj-$(CONFIG_SYNC_FILE) += sync_file.o diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c new file mode 100644 index 0000000..f08cf2d --- /dev/null +++ b/drivers/dma-buf/sync_file.c @@ -0,0 +1,395 @@ +/* + * drivers/dma-buf/sync_file.c + * + * Copyright (C) 2012 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static const struct file_operations sync_file_fops; + +static struct sync_file *sync_file_alloc(int size) +{ + struct sync_file *sync_file; + + sync_file = kzalloc(size, GFP_KERNEL); + if (!sync_file) + return NULL; + + sync_file->file = anon_inode_getfile("sync_file", &sync_file_fops, + sync_file, 0); + if (IS_ERR(sync_file->file)) + goto err; + + kref_init(&sync_file->kref); + + init_waitqueue_head(&sync_file->wq); + + return sync_file; + +err: + kfree(sync_file); + return NULL; +} + +static void fence_check_cb_func(struct fence *f, struct fence_cb *cb) +{ + struct sync_file_cb *check; + struct sync_file *sync_file; + + check = container_of(cb, struct sync_file_cb, cb); + sync_file = check->sync_file; + + if (atomic_dec_and_test(&sync_file->status)) + wake_up_all(&sync_file->wq); +} + +/** + * sync_file_create() - creates a sync file + * @fence: fence to add to the sync_fence + * + * Creates a sync_file containg @fence. Once this is called, the sync_file + * takes ownership of @fence. The sync_file can be released with + * fput(sync_file->file). Returns the sync_file or NULL in case of error. + */ +struct sync_file *sync_file_create(struct fence *fence) +{ + struct sync_file *sync_file; + + sync_file = sync_file_alloc(offsetof(struct sync_file, cbs[1])); + if (!sync_file) + return NULL; + + sync_file->num_fences = 1; + atomic_set(&sync_file->status, 1); + snprintf(sync_file->name, sizeof(sync_file->name), "%s-%s%d-%d", + fence->ops->get_driver_name(fence), + fence->ops->get_timeline_name(fence), fence->context, + fence->seqno); + + sync_file->cbs[0].fence = fence; + sync_file->cbs[0].sync_file = sync_file; + if (fence_add_callback(fence, &sync_file->cbs[0].cb, + fence_check_cb_func)) + atomic_dec(&sync_file->status); + + return sync_file; +} +EXPORT_SYMBOL(sync_file_create); + +/** + * sync_file_fdget() - get a sync_file from an fd + * @fd: fd referencing a fence + * + * Ensures @fd references a valid sync_file, increments the refcount of the + * backing file. Returns the sync_file or NULL in case of error. + */ +static struct sync_file *sync_file_fdget(int fd) +{ + struct file *file = fget(fd); + + if (!file) + return NULL; + + if (file->f_op != &sync_file_fops) + goto err; + + return file->private_data; + +err: + fput(file); + return NULL; +} + +static void sync_file_add_pt(struct sync_file *sync_file, int *i, + struct fence *fence) +{ + sync_file->cbs[*i].fence = fence; + sync_file->cbs[*i].sync_file = sync_file; + + if (!fence_add_callback(fence, &sync_file->cbs[*i].cb, + fence_check_cb_func)) { + fence_get(fence); + (*i)++; + } +} + +/** + * sync_file_merge() - merge two sync_files + * @name: name of new fence + * @a: sync_file a + * @b: sync_file b + * + * Creates a new sync_file which contains copies of all the fences in both + * @a and @b. @a and @b remain valid, independent sync_file. Returns the + * new merged sync_file or NULL in case of error. + */ +static struct sync_file *sync_file_merge(const char *name, struct sync_file *a, + struct sync_file *b) +{ + int num_fences = a->num_fences + b->num_fences; + struct sync_file *sync_file; + int i, i_a, i_b; + unsigned long size = offsetof(struct sync_file, cbs[num_fences]); + + sync_file = sync_file_alloc(size); + if (!sync_file) + return NULL; + + atomic_set(&sync_file->status, num_fences); + + /* + * Assume sync_file a and b are both ordered and have no + * duplicates with the same context. + * + * If a sync_file can only be created with sync_file_merge + * and sync_file_create, this is a reasonable assumption. + */ + for (i = i_a = i_b = 0; i_a < a->num_fences && i_b < b->num_fences; ) { + struct fence *pt_a = a->cbs[i_a].fence; + struct fence *pt_b = b->cbs[i_b].fence; + + if (pt_a->context < pt_b->context) { + sync_file_add_pt(sync_file, &i, pt_a); + + i_a++; + } else if (pt_a->context > pt_b->context) { + sync_file_add_pt(sync_file, &i, pt_b); + + i_b++; + } else { + if (pt_a->seqno - pt_b->seqno <= INT_MAX) + sync_file_add_pt(sync_file, &i, pt_a); + else + sync_file_add_pt(sync_file, &i, pt_b); + + i_a++; + i_b++; + } + } + + for (; i_a < a->num_fences; i_a++) + sync_file_add_pt(sync_file, &i, a->cbs[i_a].fence); + + for (; i_b < b->num_fences; i_b++) + sync_file_add_pt(sync_file, &i, b->cbs[i_b].fence); + + if (num_fences > i) + atomic_sub(num_fences - i, &sync_file->status); + sync_file->num_fences = i; + + strlcpy(sync_file->name, name, sizeof(sync_file->name)); + return sync_file; +} + +static void sync_file_free(struct kref *kref) +{ + struct sync_file *sync_file = container_of(kref, struct sync_file, + kref); + int i; + + for (i = 0; i < sync_file->num_fences; ++i) { + fence_remove_callback(sync_file->cbs[i].fence, + &sync_file->cbs[i].cb); + fence_put(sync_file->cbs[i].fence); + } + + kfree(sync_file); +} + +static int sync_file_release(struct inode *inode, struct file *file) +{ + struct sync_file *sync_file = file->private_data; + + kref_put(&sync_file->kref, sync_file_free); + return 0; +} + +static unsigned int sync_file_poll(struct file *file, poll_table *wait) +{ + struct sync_file *sync_file = file->private_data; + int status; + + poll_wait(file, &sync_file->wq, wait); + + status = atomic_read(&sync_file->status); + + if (!status) + return POLLIN; + if (status < 0) + return POLLERR; + return 0; +} + +static long sync_file_ioctl_merge(struct sync_file *sync_file, + unsigned long arg) +{ + int fd = get_unused_fd_flags(O_CLOEXEC); + int err; + struct sync_file *fence2, *fence3; + struct sync_merge_data data; + + if (fd < 0) + return fd; + + if (copy_from_user(&data, (void __user *)arg, sizeof(data))) { + err = -EFAULT; + goto err_put_fd; + } + + if (data.flags || data.pad) { + err = -EINVAL; + goto err_put_fd; + } + + fence2 = sync_file_fdget(data.fd2); + if (!fence2) { + err = -ENOENT; + goto err_put_fd; + } + + data.name[sizeof(data.name) - 1] = '\0'; + fence3 = sync_file_merge(data.name, sync_file, fence2); + if (!fence3) { + err = -ENOMEM; + goto err_put_fence2; + } + + data.fence = fd; + if (copy_to_user((void __user *)arg, &data, sizeof(data))) { + err = -EFAULT; + goto err_put_fence3; + } + + fd_install(fd, fence3->file); + fput(fence2->file); + return 0; + +err_put_fence3: + fput(fence3->file); + +err_put_fence2: + fput(fence2->file); + +err_put_fd: + put_unused_fd(fd); + return err; +} + +static void sync_fill_fence_info(struct fence *fence, + struct sync_fence_info *info) +{ + strlcpy(info->obj_name, fence->ops->get_timeline_name(fence), + sizeof(info->obj_name)); + strlcpy(info->driver_name, fence->ops->get_driver_name(fence), + sizeof(info->driver_name)); + if (fence_is_signaled(fence)) + info->status = fence->status >= 0 ? 1 : fence->status; + else + info->status = 0; + info->timestamp_ns = ktime_to_ns(fence->timestamp); +} + +static long sync_file_ioctl_fence_info(struct sync_file *sync_file, + unsigned long arg) +{ + struct sync_file_info info; + struct sync_fence_info *fence_info = NULL; + __u32 size; + int ret, i; + + if (copy_from_user(&info, (void __user *)arg, sizeof(info))) + return -EFAULT; + + if (info.flags || info.pad) + return -EINVAL; + + /* + * Passing num_fences = 0 means that userspace doesn't want to + * retrieve any sync_fence_info. If num_fences = 0 we skip filling + * sync_fence_info and return the actual number of fences on + * info->num_fences. + */ + if (!info.num_fences) + goto no_fences; + + if (info.num_fences < sync_file->num_fences) + return -EINVAL; + + size = sync_file->num_fences * sizeof(*fence_info); + fence_info = kzalloc(size, GFP_KERNEL); + if (!fence_info) + return -ENOMEM; + + for (i = 0; i < sync_file->num_fences; ++i) + sync_fill_fence_info(sync_file->cbs[i].fence, &fence_info[i]); + + if (copy_to_user(u64_to_user_ptr(info.sync_fence_info), fence_info, + size)) { + ret = -EFAULT; + goto out; + } + +no_fences: + strlcpy(info.name, sync_file->name, sizeof(info.name)); + info.status = atomic_read(&sync_file->status); + if (info.status >= 0) + info.status = !info.status; + + info.num_fences = sync_file->num_fences; + + if (copy_to_user((void __user *)arg, &info, sizeof(info))) + ret = -EFAULT; + else + ret = 0; + +out: + kfree(fence_info); + + return ret; +} + +static long sync_file_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) +{ + struct sync_file *sync_file = file->private_data; + + switch (cmd) { + case SYNC_IOC_MERGE: + return sync_file_ioctl_merge(sync_file, arg); + + case SYNC_IOC_FILE_INFO: + return sync_file_ioctl_fence_info(sync_file, arg); + + default: + return -ENOTTY; + } +} + +static const struct file_operations sync_file_fops = { + .release = sync_file_release, + .poll = sync_file_poll, + .unlocked_ioctl = sync_file_ioctl, + .compat_ioctl = sync_file_ioctl, +}; + diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig index 68042ab..6480f60 100644 --- a/drivers/staging/android/Kconfig +++ b/drivers/staging/android/Kconfig @@ -38,6 +38,7 @@ config SW_SYNC bool "Software synchronization objects" default n depends on SYNC + depends on SYNC_FILE ---help--- A sync object driver that uses a 32bit counter to coordinate synchronization. Useful when there is no hardware primitive backing diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile index ebc2df1..980d6dc 100644 --- a/drivers/staging/android/Makefile +++ b/drivers/staging/android/Makefile @@ -4,5 +4,5 @@ obj-y += ion/ obj-$(CONFIG_ASHMEM) += ashmem.o obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER) += lowmemorykiller.o -obj-$(CONFIG_SYNC) += sync_file.o sync.o sync_debug.o +obj-$(CONFIG_SYNC) += sync.o sync_debug.o obj-$(CONFIG_SW_SYNC) += sw_sync.o diff --git a/drivers/staging/android/sync_file.c b/drivers/staging/android/sync_file.c deleted file mode 100644 index f08cf2d..0000000 --- a/drivers/staging/android/sync_file.c +++ /dev/null @@ -1,395 +0,0 @@ -/* - * drivers/dma-buf/sync_file.c - * - * Copyright (C) 2012 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static const struct file_operations sync_file_fops; - -static struct sync_file *sync_file_alloc(int size) -{ - struct sync_file *sync_file; - - sync_file = kzalloc(size, GFP_KERNEL); - if (!sync_file) - return NULL; - - sync_file->file = anon_inode_getfile("sync_file", &sync_file_fops, - sync_file, 0); - if (IS_ERR(sync_file->file)) - goto err; - - kref_init(&sync_file->kref); - - init_waitqueue_head(&sync_file->wq); - - return sync_file; - -err: - kfree(sync_file); - return NULL; -} - -static void fence_check_cb_func(struct fence *f, struct fence_cb *cb) -{ - struct sync_file_cb *check; - struct sync_file *sync_file; - - check = container_of(cb, struct sync_file_cb, cb); - sync_file = check->sync_file; - - if (atomic_dec_and_test(&sync_file->status)) - wake_up_all(&sync_file->wq); -} - -/** - * sync_file_create() - creates a sync file - * @fence: fence to add to the sync_fence - * - * Creates a sync_file containg @fence. Once this is called, the sync_file - * takes ownership of @fence. The sync_file can be released with - * fput(sync_file->file). Returns the sync_file or NULL in case of error. - */ -struct sync_file *sync_file_create(struct fence *fence) -{ - struct sync_file *sync_file; - - sync_file = sync_file_alloc(offsetof(struct sync_file, cbs[1])); - if (!sync_file) - return NULL; - - sync_file->num_fences = 1; - atomic_set(&sync_file->status, 1); - snprintf(sync_file->name, sizeof(sync_file->name), "%s-%s%d-%d", - fence->ops->get_driver_name(fence), - fence->ops->get_timeline_name(fence), fence->context, - fence->seqno); - - sync_file->cbs[0].fence = fence; - sync_file->cbs[0].sync_file = sync_file; - if (fence_add_callback(fence, &sync_file->cbs[0].cb, - fence_check_cb_func)) - atomic_dec(&sync_file->status); - - return sync_file; -} -EXPORT_SYMBOL(sync_file_create); - -/** - * sync_file_fdget() - get a sync_file from an fd - * @fd: fd referencing a fence - * - * Ensures @fd references a valid sync_file, increments the refcount of the - * backing file. Returns the sync_file or NULL in case of error. - */ -static struct sync_file *sync_file_fdget(int fd) -{ - struct file *file = fget(fd); - - if (!file) - return NULL; - - if (file->f_op != &sync_file_fops) - goto err; - - return file->private_data; - -err: - fput(file); - return NULL; -} - -static void sync_file_add_pt(struct sync_file *sync_file, int *i, - struct fence *fence) -{ - sync_file->cbs[*i].fence = fence; - sync_file->cbs[*i].sync_file = sync_file; - - if (!fence_add_callback(fence, &sync_file->cbs[*i].cb, - fence_check_cb_func)) { - fence_get(fence); - (*i)++; - } -} - -/** - * sync_file_merge() - merge two sync_files - * @name: name of new fence - * @a: sync_file a - * @b: sync_file b - * - * Creates a new sync_file which contains copies of all the fences in both - * @a and @b. @a and @b remain valid, independent sync_file. Returns the - * new merged sync_file or NULL in case of error. - */ -static struct sync_file *sync_file_merge(const char *name, struct sync_file *a, - struct sync_file *b) -{ - int num_fences = a->num_fences + b->num_fences; - struct sync_file *sync_file; - int i, i_a, i_b; - unsigned long size = offsetof(struct sync_file, cbs[num_fences]); - - sync_file = sync_file_alloc(size); - if (!sync_file) - return NULL; - - atomic_set(&sync_file->status, num_fences); - - /* - * Assume sync_file a and b are both ordered and have no - * duplicates with the same context. - * - * If a sync_file can only be created with sync_file_merge - * and sync_file_create, this is a reasonable assumption. - */ - for (i = i_a = i_b = 0; i_a < a->num_fences && i_b < b->num_fences; ) { - struct fence *pt_a = a->cbs[i_a].fence; - struct fence *pt_b = b->cbs[i_b].fence; - - if (pt_a->context < pt_b->context) { - sync_file_add_pt(sync_file, &i, pt_a); - - i_a++; - } else if (pt_a->context > pt_b->context) { - sync_file_add_pt(sync_file, &i, pt_b); - - i_b++; - } else { - if (pt_a->seqno - pt_b->seqno <= INT_MAX) - sync_file_add_pt(sync_file, &i, pt_a); - else - sync_file_add_pt(sync_file, &i, pt_b); - - i_a++; - i_b++; - } - } - - for (; i_a < a->num_fences; i_a++) - sync_file_add_pt(sync_file, &i, a->cbs[i_a].fence); - - for (; i_b < b->num_fences; i_b++) - sync_file_add_pt(sync_file, &i, b->cbs[i_b].fence); - - if (num_fences > i) - atomic_sub(num_fences - i, &sync_file->status); - sync_file->num_fences = i; - - strlcpy(sync_file->name, name, sizeof(sync_file->name)); - return sync_file; -} - -static void sync_file_free(struct kref *kref) -{ - struct sync_file *sync_file = container_of(kref, struct sync_file, - kref); - int i; - - for (i = 0; i < sync_file->num_fences; ++i) { - fence_remove_callback(sync_file->cbs[i].fence, - &sync_file->cbs[i].cb); - fence_put(sync_file->cbs[i].fence); - } - - kfree(sync_file); -} - -static int sync_file_release(struct inode *inode, struct file *file) -{ - struct sync_file *sync_file = file->private_data; - - kref_put(&sync_file->kref, sync_file_free); - return 0; -} - -static unsigned int sync_file_poll(struct file *file, poll_table *wait) -{ - struct sync_file *sync_file = file->private_data; - int status; - - poll_wait(file, &sync_file->wq, wait); - - status = atomic_read(&sync_file->status); - - if (!status) - return POLLIN; - if (status < 0) - return POLLERR; - return 0; -} - -static long sync_file_ioctl_merge(struct sync_file *sync_file, - unsigned long arg) -{ - int fd = get_unused_fd_flags(O_CLOEXEC); - int err; - struct sync_file *fence2, *fence3; - struct sync_merge_data data; - - if (fd < 0) - return fd; - - if (copy_from_user(&data, (void __user *)arg, sizeof(data))) { - err = -EFAULT; - goto err_put_fd; - } - - if (data.flags || data.pad) { - err = -EINVAL; - goto err_put_fd; - } - - fence2 = sync_file_fdget(data.fd2); - if (!fence2) { - err = -ENOENT; - goto err_put_fd; - } - - data.name[sizeof(data.name) - 1] = '\0'; - fence3 = sync_file_merge(data.name, sync_file, fence2); - if (!fence3) { - err = -ENOMEM; - goto err_put_fence2; - } - - data.fence = fd; - if (copy_to_user((void __user *)arg, &data, sizeof(data))) { - err = -EFAULT; - goto err_put_fence3; - } - - fd_install(fd, fence3->file); - fput(fence2->file); - return 0; - -err_put_fence3: - fput(fence3->file); - -err_put_fence2: - fput(fence2->file); - -err_put_fd: - put_unused_fd(fd); - return err; -} - -static void sync_fill_fence_info(struct fence *fence, - struct sync_fence_info *info) -{ - strlcpy(info->obj_name, fence->ops->get_timeline_name(fence), - sizeof(info->obj_name)); - strlcpy(info->driver_name, fence->ops->get_driver_name(fence), - sizeof(info->driver_name)); - if (fence_is_signaled(fence)) - info->status = fence->status >= 0 ? 1 : fence->status; - else - info->status = 0; - info->timestamp_ns = ktime_to_ns(fence->timestamp); -} - -static long sync_file_ioctl_fence_info(struct sync_file *sync_file, - unsigned long arg) -{ - struct sync_file_info info; - struct sync_fence_info *fence_info = NULL; - __u32 size; - int ret, i; - - if (copy_from_user(&info, (void __user *)arg, sizeof(info))) - return -EFAULT; - - if (info.flags || info.pad) - return -EINVAL; - - /* - * Passing num_fences = 0 means that userspace doesn't want to - * retrieve any sync_fence_info. If num_fences = 0 we skip filling - * sync_fence_info and return the actual number of fences on - * info->num_fences. - */ - if (!info.num_fences) - goto no_fences; - - if (info.num_fences < sync_file->num_fences) - return -EINVAL; - - size = sync_file->num_fences * sizeof(*fence_info); - fence_info = kzalloc(size, GFP_KERNEL); - if (!fence_info) - return -ENOMEM; - - for (i = 0; i < sync_file->num_fences; ++i) - sync_fill_fence_info(sync_file->cbs[i].fence, &fence_info[i]); - - if (copy_to_user(u64_to_user_ptr(info.sync_fence_info), fence_info, - size)) { - ret = -EFAULT; - goto out; - } - -no_fences: - strlcpy(info.name, sync_file->name, sizeof(info.name)); - info.status = atomic_read(&sync_file->status); - if (info.status >= 0) - info.status = !info.status; - - info.num_fences = sync_file->num_fences; - - if (copy_to_user((void __user *)arg, &info, sizeof(info))) - ret = -EFAULT; - else - ret = 0; - -out: - kfree(fence_info); - - return ret; -} - -static long sync_file_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - struct sync_file *sync_file = file->private_data; - - switch (cmd) { - case SYNC_IOC_MERGE: - return sync_file_ioctl_merge(sync_file, arg); - - case SYNC_IOC_FILE_INFO: - return sync_file_ioctl_fence_info(sync_file, arg); - - default: - return -ENOTTY; - } -} - -static const struct file_operations sync_file_fops = { - .release = sync_file_release, - .poll = sync_file_poll, - .unlocked_ioctl = sync_file_ioctl, - .compat_ioctl = sync_file_ioctl, -}; - -- cgit v0.10.2 From 5b996e93aac3d9a26e077df1c9bb581427b216fe Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:46:59 -0300 Subject: Documentation: include sync_file into DocBook Add entry in device-drivers.tmpl for sync_file documentation. Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl index 184f3c7..509a187 100644 --- a/Documentation/DocBook/device-drivers.tmpl +++ b/Documentation/DocBook/device-drivers.tmpl @@ -136,6 +136,8 @@ X!Edrivers/base/interface.c !Iinclude/linux/seqno-fence.h !Edrivers/dma-buf/reservation.c !Iinclude/linux/reservation.h +!Edrivers/dma-buf/sync_file.c +!Iinclude/linux/sync_file.h !Edrivers/base/dma-coherent.c !Edrivers/base/dma-mapping.c -- cgit v0.10.2 From c784c82a3fd64b322015b92016fc980be705c176 Mon Sep 17 00:00:00 2001 From: Gustavo Padovan Date: Thu, 28 Apr 2016 10:47:00 -0300 Subject: Documentation: add Sync File doc Add sync_file documentation on dma-buf-sync_file.txt Reviewed-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman diff --git a/Documentation/sync_file.txt b/Documentation/sync_file.txt new file mode 100644 index 0000000..eaf8297 --- /dev/null +++ b/Documentation/sync_file.txt @@ -0,0 +1,69 @@ + Sync File API Guide + ~~~~~~~~~~~~~~~~~~~ + + Gustavo Padovan + + +This document serves as a guide for device drivers writers on what the +sync_file API is, and how drivers can support it. Sync file is the carrier of +the fences(struct fence) that needs to synchronized between drivers or across +process boundaries. + +The sync_file API is meant to be used to send and receive fence information +to/from userspace. It enables userspace to do explicit fencing, where instead +of attaching a fence to the buffer a producer driver (such as a GPU or V4L +driver) sends the fence related to the buffer to userspace via a sync_file. + +The sync_file then can be sent to the consumer (DRM driver for example), that +will not use the buffer for anything before the fence(s) signals, i.e., the +driver that issued the fence is not using/processing the buffer anymore, so it +signals that the buffer is ready to use. And vice-versa for the consumer -> +producer part of the cycle. + +Sync files allows userspace awareness on buffer sharing synchronization between +drivers. + +Sync file was originally added in the Android kernel but current Linux Desktop +can benefit a lot from it. + +in-fences and out-fences +------------------------ + +Sync files can go either to or from userspace. When a sync_file is sent from +the driver to userspace we call the fences it contains 'out-fences'. They are +related to a buffer that the driver is processing or is going to process, so +the driver an create out-fence to be able to notify, through fence_signal(), +when it has finished using (or processing) that buffer. Out-fences are fences +that the driver creates. + +On the other hand if the driver receives fence(s) through a sync_file from +userspace we call these fence(s) 'in-fences'. Receiveing in-fences means that +we need to wait for the fence(s) to signal before using any buffer related to +the in-fences. + +Creating Sync Files +------------------- + +When a driver needs to send an out-fence userspace it creates a sync_file. + +Interface: + struct sync_file *sync_file_create(struct fence *fence); + +The caller pass the out-fence and gets back the sync_file. That is just the +first step, next it needs to install an fd on sync_file->file. So it gets an +fd: + + fd = get_unused_fd_flags(O_CLOEXEC); + +and installs it on sync_file->file: + + fd_install(fd, sync_file->file); + +The sync_file fd now can be sent to userspace. + +If the creation process fail, or the sync_file needs to be released by any +other reason fput(sync_file->file) should be used. + +References: +[1] struct sync_file in include/linux/sync_file.h +[2] All interfaces mentioned above defined in include/linux/sync_file.h -- cgit v0.10.2 From 0045c8ddd6965e15f638788e7180abe8765f6cbb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Markus=20B=C3=B6hme?= Date: Wed, 6 Apr 2016 23:53:39 +0200 Subject: staging: android: ion: make locally used functions static MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Functions ion_handle_put and ion_handle_get_by_id are only used locally in ion.c, so they should be made static as they used to be before 9590232b ("staging/android/ion : fix a race condition in the ion driver"). Signed-off-by: Markus Böhme Reviewed-by: Sumit Semwal Reviewed-by: Laura Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index d4c6207..a2cf93b 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -396,7 +396,7 @@ static int ion_handle_put_nolock(struct ion_handle *handle) return ret; } -int ion_handle_put(struct ion_handle *handle) +static int ion_handle_put(struct ion_handle *handle) { struct ion_client *client = handle->client; int ret; @@ -438,8 +438,8 @@ static struct ion_handle *ion_handle_get_by_id_nolock(struct ion_client *client, return handle ? handle : ERR_PTR(-EINVAL); } -struct ion_handle *ion_handle_get_by_id(struct ion_client *client, - int id) +static struct ion_handle *ion_handle_get_by_id(struct ion_client *client, + int id) { struct ion_handle *handle; -- cgit v0.10.2 From 9fea19a9a4bb22a237972d50e41219ddd479ea22 Mon Sep 17 00:00:00 2001 From: Ben Marsh Date: Sun, 24 Apr 2016 20:16:02 +0200 Subject: Staging: android: modify memory allocation style in ion_test.c Modifies the memory allocation style ion_test.c in order to remove a checkpatch.pl warning Signed-off-by: Ben Marsh Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/ion/ion_test.c b/drivers/staging/android/ion/ion_test.c index 83a3af0..5a396a1 100644 --- a/drivers/staging/android/ion/ion_test.c +++ b/drivers/staging/android/ion/ion_test.c @@ -208,7 +208,7 @@ static int ion_test_open(struct inode *inode, struct file *file) struct ion_test_data *data; struct miscdevice *miscdev = file->private_data; - data = kzalloc(sizeof(struct ion_test_data), GFP_KERNEL); + data = kzalloc(sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; -- cgit v0.10.2 From 3229ff343c70163b5425e54cce1f313a9be6b85e Mon Sep 17 00:00:00 2001 From: Ben Marsh Date: Thu, 7 Apr 2016 21:26:34 +0200 Subject: Staging: android: modify memory allocation style in ion_chunk_heap.c Modify memory allocation style in order to silence a checkpatch.pl warning. Signed-off-by: Ben Marsh Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c index 0813163..e0553fe 100644 --- a/drivers/staging/android/ion/ion_chunk_heap.c +++ b/drivers/staging/android/ion/ion_chunk_heap.c @@ -55,7 +55,7 @@ static int ion_chunk_heap_allocate(struct ion_heap *heap, if (allocated_size > chunk_heap->size - chunk_heap->allocated) return -ENOMEM; - table = kmalloc(sizeof(struct sg_table), GFP_KERNEL); + table = kmalloc(sizeof(*table), GFP_KERNEL); if (!table) return -ENOMEM; ret = sg_alloc_table(table, num_chunks, GFP_KERNEL); @@ -154,7 +154,7 @@ struct ion_heap *ion_chunk_heap_create(struct ion_platform_heap *heap_data) if (ret) return ERR_PTR(ret); - chunk_heap = kzalloc(sizeof(struct ion_chunk_heap), GFP_KERNEL); + chunk_heap = kzalloc(sizeof(*chunk_heap), GFP_KERNEL); if (!chunk_heap) return ERR_PTR(-ENOMEM); -- cgit v0.10.2 From 9f563f1a2a4b448393159b3d526a6657dc4c0fce Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Thu, 7 Apr 2016 22:02:25 +0530 Subject: staging: android: ion: dummy: fix dereference of ERR_PTR ion_device_create() can fail and if it fails then it returns the error value in ERR_PTR. Signed-off-by: Sudip Mukherjee Reviewed-by: Laura Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/ion/ion_dummy_driver.c b/drivers/staging/android/ion/ion_dummy_driver.c index 5678870..814a3c9 100644 --- a/drivers/staging/android/ion/ion_dummy_driver.c +++ b/drivers/staging/android/ion/ion_dummy_driver.c @@ -68,6 +68,8 @@ static int __init ion_dummy_init(void) int i, err; idev = ion_device_create(NULL); + if (IS_ERR(idev)) + return PTR_ERR(idev); heaps = kcalloc(dummy_ion_pdata.nr, sizeof(struct ion_heap *), GFP_KERNEL); if (!heaps) -- cgit v0.10.2 From 02e020480daf3a7726db493ff28f9391ff6bb9c4 Mon Sep 17 00:00:00 2001 From: Nicholas Sim Date: Tue, 5 Apr 2016 17:37:12 +0100 Subject: staging: wlan-ng: rewrite NULL comparison It is not necessary to compare explicitly to NULL. Rewrite if condition as (!dev) or (dev) as suggested in Documentation/CodingStyle Signed-off-by: Nicholas Sim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c index 21a92df..3378107 100644 --- a/drivers/staging/wlan-ng/hfa384x_usb.c +++ b/drivers/staging/wlan-ng/hfa384x_usb.c @@ -614,7 +614,7 @@ static hfa384x_usbctlx_t *usbctlx_alloc(void) ctlx = kzalloc(sizeof(*ctlx), in_interrupt() ? GFP_ATOMIC : GFP_KERNEL); - if (ctlx != NULL) + if (ctlx) init_completion(&ctlx->done); return ctlx; @@ -797,7 +797,7 @@ static inline struct usbctlx_completor *init_rmem_completor( ----------------------------------------------------------------*/ static void hfa384x_cb_status(hfa384x_t *hw, const hfa384x_usbctlx_t *ctlx) { - if (ctlx->usercb != NULL) { + if (ctlx->usercb) { hfa384x_cmdresult_t cmdresult; if (ctlx->state != CTLX_COMPLETE) { @@ -2738,7 +2738,7 @@ static void hfa384x_usbctlx_completion_task(unsigned long data) /* Call the completion function that this * command was assigned, assuming it has one. */ - if (ctlx->cmdcb != NULL) { + if (ctlx->cmdcb) { spin_unlock_irqrestore(&hw->ctlxq.lock, flags); ctlx->cmdcb(hw, ctlx); spin_lock_irqsave(&hw->ctlxq.lock, flags); @@ -3629,7 +3629,7 @@ static void hfa384x_ctlxout_callback(struct urb *urb) dbprint_urb(urb); #endif if ((urb->status == -ESHUTDOWN) || - (urb->status == -ENODEV) || (hw == NULL)) + (urb->status == -ENODEV) || !hw) return; retry: -- cgit v0.10.2 From e26eaf457989326a41eb58754f18333308cab321 Mon Sep 17 00:00:00 2001 From: Claudiu Beznea Date: Sun, 24 Apr 2016 19:40:13 +0300 Subject: Staging: wlan-ng: memory allocated inside mkimage() is not freed if subsequent calls fails. This patch frees memory allocated inside mkimage() in case mkimage() or any other subsequent calls inside prism2_fwapply() from prism2fw.c file fails. To fix this I introduces goto labels where the free operation is done in case some operations fails. After the introduction of goto labels has been done, in order to use the same return path, "return x" instuctions were replaced with "goto" instuctions. Signed-off-by: Claudiu Beznea Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wlan-ng/prism2fw.c b/drivers/staging/wlan-ng/prism2fw.c index 8564d9e..56bffd9 100644 --- a/drivers/staging/wlan-ng/prism2fw.c +++ b/drivers/staging/wlan-ng/prism2fw.c @@ -278,7 +278,8 @@ static int prism2_fwapply(const struct ihex_binrec *rfptr, /* Build the PDA we're going to use. */ if (read_cardpda(&pda, wlandev)) { netdev_err(wlandev->netdev, "load_cardpda failed, exiting.\n"); - return 1; + result = 1; + goto out; } /* read the card's PRI-SUP */ @@ -315,55 +316,58 @@ static int prism2_fwapply(const struct ihex_binrec *rfptr, if (result) { netdev_err(wlandev->netdev, "Failed to read the data exiting.\n"); - return 1; + goto out; } result = validate_identity(); - if (result) { netdev_err(wlandev->netdev, "Incompatible firmware image.\n"); - return 1; + goto out; } if (startaddr == 0x00000000) { netdev_err(wlandev->netdev, "Can't RAM download a Flash image!\n"); - return 1; + result = 1; + goto out; } /* Make the image chunks */ result = mkimage(fchunk, &nfchunks); if (result) { netdev_err(wlandev->netdev, "Failed to make image chunk.\n"); - return 1; + goto free_chunks; } /* Do any plugging */ result = plugimage(fchunk, nfchunks, s3plug, ns3plug, &pda); if (result) { netdev_err(wlandev->netdev, "Failed to plug data.\n"); - return 1; + goto free_chunks; } /* Insert any CRCs */ - if (crcimage(fchunk, nfchunks, s3crc, ns3crc)) { + result = crcimage(fchunk, nfchunks, s3crc, ns3crc); + if (result) { netdev_err(wlandev->netdev, "Failed to insert all CRCs\n"); - return 1; + goto free_chunks; } /* Write the image */ result = writeimage(wlandev, fchunk, nfchunks); if (result) { netdev_err(wlandev->netdev, "Failed to ramwrite image data.\n"); - return 1; + goto free_chunks; } + netdev_info(wlandev->netdev, "prism2_usb: firmware loading finished.\n"); + +free_chunks: /* clear any allocated memory */ free_chunks(fchunk, &nfchunks); free_srecs(); - netdev_info(wlandev->netdev, "prism2_usb: firmware loading finished.\n"); - +out: return result; } -- cgit v0.10.2 From 24039c589b8d11584ab882597fb566df2636bd73 Mon Sep 17 00:00:00 2001 From: Juanma de Hoyos Date: Sun, 3 Apr 2016 22:01:36 +0200 Subject: drivers/staging/dgnc: Added spaces around a bitwise OR. Coding rules request placing bitwise OR operators between empty spaces for better readibility. This patch applies this format to a line in dgnc_tty.c file. Signed-off-by: Juanma de Hoyos Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 074988d..5832190 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -2691,7 +2691,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd, ch->ch_w_head = ch->ch_w_tail; ch_bd_ops->flush_uart_write(ch); - if (ch->ch_tun.un_flags & (UN_LOW|UN_EMPTY)) { + if (ch->ch_tun.un_flags & (UN_LOW | UN_EMPTY)) { ch->ch_tun.un_flags &= ~(UN_LOW | UN_EMPTY); wake_up_interruptible(&ch->ch_tun.un_flags_wait); -- cgit v0.10.2 From ea753f2a5976570db67a4f8fbd54607652c621cc Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Mon, 4 Apr 2016 18:52:03 +0900 Subject: staging: dgnc: remove parenthesis around the CONST | remove parenthesis around the CONST | CONST. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c index 5e46ac8..46c050c 100644 --- a/drivers/staging/dgnc/dgnc_cls.c +++ b/drivers/staging/dgnc/dgnc_cls.c @@ -1168,7 +1168,7 @@ static void cls_uart_init(struct channel_t *ch) /* Clear out UART and FIFO */ readb(&ch->ch_cls_uart->txrx); - writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT), + writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT, &ch->ch_cls_uart->isr_fcr); udelay(10); -- cgit v0.10.2 From 6b3752d8ce67dc62150db9d153e72c7a98db4007 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Mon, 4 Apr 2016 18:52:30 +0900 Subject: staging: dgnc: remove blank line fix checkpatch.pl warning: Blank lines aren't necessary after an open brace '{' Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index 2da6a72..3b8ce38 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -1794,7 +1794,6 @@ static void neo_vpd(struct dgnc_board *brd) if (((brd->vpd[0x08] != 0x82) && (brd->vpd[0x10] != 0x82)) || (brd->vpd[0x7F] != 0x78)) { - memset(brd->vpd, '\0', NEO_VPD_IMAGESIZE); } else { /* Search for the serial number */ -- cgit v0.10.2 From 16f10a825da5b9361ef8e8da76720c37f0116da4 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Tue, 5 Apr 2016 18:29:43 +0900 Subject: staging: dgnc: return -ENOMEM when kzalloc failed The kzalloc can be failed when memory is not enough to allocate. When kzalloc failed, it need to return error code with ENOMEM Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 5832190..7f73a41 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -1106,6 +1106,14 @@ static int dgnc_tty_open(struct tty_struct *tty, struct file *file) if (!ch->ch_wqueue) ch->ch_wqueue = kzalloc(WQUEUESIZE, GFP_KERNEL); + if (!ch->ch_rqueue || !ch->ch_equeue || !ch->ch_wqueue) { + kfree(ch->ch_rqueue); + kfree(ch->ch_equeue); + kfree(ch->ch_wqueue); + + return -ENOMEM; + } + spin_lock_irqsave(&ch->ch_lock, flags); ch->ch_flags &= ~(CH_OPENING); -- cgit v0.10.2 From e47e7379ce3e03018619e994976b4059b790c955 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Tue, 5 Apr 2016 18:30:02 +0900 Subject: staging: dgnc: remove redundant NULL check in There were already checking NULL about channel_t / un_t before calling dgnc_maxcps_room(). Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 7f73a41..c07897a 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -1536,19 +1536,8 @@ static int dgnc_tty_chars_in_buffer(struct tty_struct *tty) */ static int dgnc_maxcps_room(struct tty_struct *tty, int bytes_available) { - struct channel_t *ch = NULL; - struct un_t *un = NULL; - - if (!tty) - return bytes_available; - - un = tty->driver_data; - if (!un || un->magic != DGNC_UNIT_MAGIC) - return bytes_available; - - ch = un->un_ch; - if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) - return bytes_available; + struct un_t *un = tty->driver_data; + struct channel_t *ch = un->un_ch; /* * If its not the Transparent print device, return -- cgit v0.10.2 From 60b3109e5e2d93af6a61c7caf10f1009584cee30 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Thu, 14 Apr 2016 12:30:13 +0900 Subject: staging: dgnc: use tty_alloc_driver instead of kcalloc The tty_alloc_driver() can allocate memory for ttys and termios. And also allocated memory will be released easily with put_tty_driver() call. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h index 6609ba5..95ec729 100644 --- a/drivers/staging/dgnc/dgnc_driver.h +++ b/drivers/staging/dgnc/dgnc_driver.h @@ -202,9 +202,9 @@ struct dgnc_board { * to our channels. */ - struct tty_driver serial_driver; + struct tty_driver *serial_driver; char serial_name[200]; - struct tty_driver print_driver; + struct tty_driver *print_driver; char print_name[200]; bool dgnc_major_serial_registered; diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index c07897a..2cecdb0 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -176,55 +176,40 @@ int dgnc_tty_preinit(void) */ int dgnc_tty_register(struct dgnc_board *brd) { - int rc = 0; - - brd->serial_driver.magic = TTY_DRIVER_MAGIC; + int rc; - snprintf(brd->serial_name, MAXTTYNAMELEN, "tty_dgnc_%d_", brd->boardnum); + brd->serial_driver = tty_alloc_driver(brd->maxports, + TTY_DRIVER_REAL_RAW | + TTY_DRIVER_DYNAMIC_DEV | + TTY_DRIVER_HARDWARE_BREAK); - brd->serial_driver.name = brd->serial_name; - brd->serial_driver.name_base = 0; - brd->serial_driver.major = 0; - brd->serial_driver.minor_start = 0; - brd->serial_driver.num = brd->maxports; - brd->serial_driver.type = TTY_DRIVER_TYPE_SERIAL; - brd->serial_driver.subtype = SERIAL_TYPE_NORMAL; - brd->serial_driver.init_termios = DgncDefaultTermios; - brd->serial_driver.driver_name = DRVSTR; - brd->serial_driver.flags = (TTY_DRIVER_REAL_RAW | - TTY_DRIVER_DYNAMIC_DEV | - TTY_DRIVER_HARDWARE_BREAK); + if (IS_ERR(brd->serial_driver)) + return PTR_ERR(brd->serial_driver); - /* - * The kernel wants space to store pointers to - * tty_struct's and termios's. - */ - brd->serial_driver.ttys = kcalloc(brd->maxports, - sizeof(*brd->serial_driver.ttys), - GFP_KERNEL); - if (!brd->serial_driver.ttys) - return -ENOMEM; + snprintf(brd->serial_name, MAXTTYNAMELEN, "tty_dgnc_%d_", brd->boardnum); - kref_init(&brd->serial_driver.kref); - brd->serial_driver.termios = kcalloc(brd->maxports, - sizeof(*brd->serial_driver.termios), - GFP_KERNEL); - if (!brd->serial_driver.termios) - return -ENOMEM; + brd->serial_driver->name = brd->serial_name; + brd->serial_driver->name_base = 0; + brd->serial_driver->major = 0; + brd->serial_driver->minor_start = 0; + brd->serial_driver->type = TTY_DRIVER_TYPE_SERIAL; + brd->serial_driver->subtype = SERIAL_TYPE_NORMAL; + brd->serial_driver->init_termios = DgncDefaultTermios; + brd->serial_driver->driver_name = DRVSTR; /* * Entry points for driver. Called by the kernel from * tty_io.c and n_tty.c. */ - tty_set_operations(&brd->serial_driver, &dgnc_tty_ops); + tty_set_operations(brd->serial_driver, &dgnc_tty_ops); if (!brd->dgnc_major_serial_registered) { /* Register tty devices */ - rc = tty_register_driver(&brd->serial_driver); + rc = tty_register_driver(brd->serial_driver); if (rc < 0) { dev_dbg(&brd->pdev->dev, "Can't register tty device (%d)\n", rc); - return rc; + goto free_serial_driver; } brd->dgnc_major_serial_registered = true; } @@ -234,58 +219,55 @@ int dgnc_tty_register(struct dgnc_board *brd) * again, separately so we don't get the LD confused about what major * we are when we get into the dgnc_tty_open() routine. */ - brd->print_driver.magic = TTY_DRIVER_MAGIC; - snprintf(brd->print_name, MAXTTYNAMELEN, "pr_dgnc_%d_", brd->boardnum); + brd->print_driver = tty_alloc_driver(brd->maxports, + TTY_DRIVER_REAL_RAW | + TTY_DRIVER_DYNAMIC_DEV | + TTY_DRIVER_HARDWARE_BREAK); - brd->print_driver.name = brd->print_name; - brd->print_driver.name_base = 0; - brd->print_driver.major = brd->serial_driver.major; - brd->print_driver.minor_start = 0x80; - brd->print_driver.num = brd->maxports; - brd->print_driver.type = TTY_DRIVER_TYPE_SERIAL; - brd->print_driver.subtype = SERIAL_TYPE_NORMAL; - brd->print_driver.init_termios = DgncDefaultTermios; - brd->print_driver.driver_name = DRVSTR; - brd->print_driver.flags = (TTY_DRIVER_REAL_RAW | - TTY_DRIVER_DYNAMIC_DEV | - TTY_DRIVER_HARDWARE_BREAK); + snprintf(brd->print_name, MAXTTYNAMELEN, "pr_dgnc_%d_", brd->boardnum); - /* - * The kernel wants space to store pointers to - * tty_struct's and termios's. Must be separated from - * the Serial Driver so we don't get confused - */ - brd->print_driver.ttys = kcalloc(brd->maxports, - sizeof(*brd->print_driver.ttys), - GFP_KERNEL); - if (!brd->print_driver.ttys) - return -ENOMEM; - kref_init(&brd->print_driver.kref); - brd->print_driver.termios = kcalloc(brd->maxports, - sizeof(*brd->print_driver.termios), - GFP_KERNEL); - if (!brd->print_driver.termios) - return -ENOMEM; + brd->print_driver->name = brd->print_name; + brd->print_driver->name_base = 0; + brd->print_driver->major = brd->serial_driver->major; + brd->print_driver->minor_start = 0x80; + brd->print_driver->type = TTY_DRIVER_TYPE_SERIAL; + brd->print_driver->subtype = SERIAL_TYPE_NORMAL; + brd->print_driver->init_termios = DgncDefaultTermios; + brd->print_driver->driver_name = DRVSTR; + + if (IS_ERR(brd->print_driver)) { + rc = PTR_ERR(brd->print_driver); + goto unregister_serial_driver; + } /* * Entry points for driver. Called by the kernel from * tty_io.c and n_tty.c. */ - tty_set_operations(&brd->print_driver, &dgnc_tty_ops); + tty_set_operations(brd->print_driver, &dgnc_tty_ops); if (!brd->dgnc_major_transparent_print_registered) { /* Register Transparent Print devices */ - rc = tty_register_driver(&brd->print_driver); + rc = tty_register_driver(brd->print_driver); if (rc < 0) { dev_dbg(&brd->pdev->dev, "Can't register Transparent Print device(%d)\n", rc); - return rc; + goto free_print_driver; } brd->dgnc_major_transparent_print_registered = true; } - dgnc_BoardsByMajor[brd->serial_driver.major] = brd; + dgnc_BoardsByMajor[brd->serial_driver->major] = brd; + + return 0; + +free_print_driver: + put_tty_driver(brd->print_driver); +unregister_serial_driver: + tty_unregister_driver(brd->serial_driver); +free_serial_driver: + put_tty_driver(brd->serial_driver); return rc; } @@ -362,12 +344,12 @@ int dgnc_tty_init(struct dgnc_board *brd) { struct device *classp; - classp = tty_register_device(&brd->serial_driver, i, + classp = tty_register_device(brd->serial_driver, i, &ch->ch_bd->pdev->dev); ch->ch_tun.un_sysfs = classp; dgnc_create_tty_sysfs(&ch->ch_tun, classp); - classp = tty_register_device(&brd->print_driver, i, + classp = tty_register_device(brd->print_driver, i, &ch->ch_bd->pdev->dev); ch->ch_pun.un_sysfs = classp; dgnc_create_tty_sysfs(&ch->ch_pun, classp); @@ -406,37 +388,31 @@ void dgnc_tty_uninit(struct dgnc_board *brd) int i = 0; if (brd->dgnc_major_serial_registered) { - dgnc_BoardsByMajor[brd->serial_driver.major] = NULL; + dgnc_BoardsByMajor[brd->serial_driver->major] = NULL; for (i = 0; i < brd->nasync; i++) { if (brd->channels[i]) dgnc_remove_tty_sysfs(brd->channels[i]-> ch_tun.un_sysfs); - tty_unregister_device(&brd->serial_driver, i); + tty_unregister_device(brd->serial_driver, i); } - tty_unregister_driver(&brd->serial_driver); + tty_unregister_driver(brd->serial_driver); brd->dgnc_major_serial_registered = false; } if (brd->dgnc_major_transparent_print_registered) { - dgnc_BoardsByMajor[brd->print_driver.major] = NULL; + dgnc_BoardsByMajor[brd->print_driver->major] = NULL; for (i = 0; i < brd->nasync; i++) { if (brd->channels[i]) dgnc_remove_tty_sysfs(brd->channels[i]-> ch_pun.un_sysfs); - tty_unregister_device(&brd->print_driver, i); + tty_unregister_device(brd->print_driver, i); } - tty_unregister_driver(&brd->print_driver); + tty_unregister_driver(brd->print_driver); brd->dgnc_major_transparent_print_registered = false; } - kfree(brd->serial_driver.ttys); - brd->serial_driver.ttys = NULL; - kfree(brd->serial_driver.termios); - brd->serial_driver.termios = NULL; - kfree(brd->print_driver.ttys); - brd->print_driver.ttys = NULL; - kfree(brd->print_driver.termios); - brd->print_driver.termios = NULL; + put_tty_driver(brd->serial_driver); + put_tty_driver(brd->print_driver); } /* -- cgit v0.10.2 From 78930e7c3c114e473d0116c18dbf3894ec4c005d Mon Sep 17 00:00:00 2001 From: Manu Kumar Date: Mon, 4 Apr 2016 16:53:01 -0700 Subject: staging: skein: cleanup: add operator white space Added white space between operators and operands. Because this sometimes maxed out the column width, some expressions were broken up into multiple lines, and comments were moved appropriately. Signed-off-by: Manu Kumar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/skein/skein_base.c b/drivers/staging/skein/skein_base.c index 25a01ca..3e3485c 100644 --- a/drivers/staging/skein/skein_base.c +++ b/drivers/staging/skein/skein_base.c @@ -58,7 +58,7 @@ int skein_256_init(struct skein_256_ctx *ctx, size_t hash_bit_len) cfg.w[1] = skein_swap64(hash_bit_len); cfg.w[2] = skein_swap64(SKEIN_CFG_TREE_INFO_SEQUENTIAL); /* zero pad config block */ - memset(&cfg.w[3], 0, sizeof(cfg) - 3*sizeof(cfg.w[0])); + memset(&cfg.w[3], 0, sizeof(cfg) - 3 * sizeof(cfg.w[0])); /* compute the initial chaining values from config block */ /* zero the chaining variables */ @@ -98,7 +98,7 @@ int skein_256_init_ext(struct skein_256_ctx *ctx, size_t hash_bit_len, skein_assert(sizeof(cfg.b) >= sizeof(ctx->x)); /* do a mini-Init right here */ /* set output hash bit count = state size */ - ctx->h.hash_bit_len = 8*sizeof(ctx->x); + ctx->h.hash_bit_len = 8 * sizeof(ctx->x); /* set tweaks: T0 = 0; T1 = KEY type */ skein_start_new_type(ctx, KEY); /* zero the initial chaining variables */ @@ -171,7 +171,7 @@ int skein_256_update(struct skein_256_ctx *ctx, const u8 *msg, */ if (msg_byte_cnt > SKEIN_256_BLOCK_BYTES) { /* number of full blocks to process */ - n = (msg_byte_cnt-1) / SKEIN_256_BLOCK_BYTES; + n = (msg_byte_cnt - 1) / SKEIN_256_BLOCK_BYTES; skein_256_process_block(ctx, msg, n, SKEIN_256_BLOCK_BYTES); msg_byte_cnt -= n * SKEIN_256_BLOCK_BYTES; @@ -219,19 +219,19 @@ int skein_256_final(struct skein_256_ctx *ctx, u8 *hash_val) memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(x, ctx->x, sizeof(x)); - for (i = 0; i*SKEIN_256_BLOCK_BYTES < byte_cnt; i++) { + for (i = 0; i * SKEIN_256_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = skein_swap64((u64) i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_256_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byte_cnt - i*SKEIN_256_BLOCK_BYTES; + n = byte_cnt - i * SKEIN_256_BLOCK_BYTES; if (n >= SKEIN_256_BLOCK_BYTES) n = SKEIN_256_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val+i*SKEIN_256_BLOCK_BYTES, ctx->x, - n); + skein_put64_lsb_first(hash_val + i * SKEIN_256_BLOCK_BYTES, + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -282,7 +282,7 @@ int skein_512_init(struct skein_512_ctx *ctx, size_t hash_bit_len) cfg.w[1] = skein_swap64(hash_bit_len); cfg.w[2] = skein_swap64(SKEIN_CFG_TREE_INFO_SEQUENTIAL); /* zero pad config block */ - memset(&cfg.w[3], 0, sizeof(cfg) - 3*sizeof(cfg.w[0])); + memset(&cfg.w[3], 0, sizeof(cfg) - 3 * sizeof(cfg.w[0])); /* compute the initial chaining values from config block */ /* zero the chaining variables */ @@ -326,7 +326,7 @@ int skein_512_init_ext(struct skein_512_ctx *ctx, size_t hash_bit_len, skein_assert(sizeof(cfg.b) >= sizeof(ctx->x)); /* do a mini-Init right here */ /* set output hash bit count = state size */ - ctx->h.hash_bit_len = 8*sizeof(ctx->x); + ctx->h.hash_bit_len = 8 * sizeof(ctx->x); /* set tweaks: T0 = 0; T1 = KEY type */ skein_start_new_type(ctx, KEY); /* zero the initial chaining variables */ @@ -398,7 +398,7 @@ int skein_512_update(struct skein_512_ctx *ctx, const u8 *msg, */ if (msg_byte_cnt > SKEIN_512_BLOCK_BYTES) { /* number of full blocks to process */ - n = (msg_byte_cnt-1) / SKEIN_512_BLOCK_BYTES; + n = (msg_byte_cnt - 1) / SKEIN_512_BLOCK_BYTES; skein_512_process_block(ctx, msg, n, SKEIN_512_BLOCK_BYTES); msg_byte_cnt -= n * SKEIN_512_BLOCK_BYTES; @@ -446,19 +446,19 @@ int skein_512_final(struct skein_512_ctx *ctx, u8 *hash_val) memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(x, ctx->x, sizeof(x)); - for (i = 0; i*SKEIN_512_BLOCK_BYTES < byte_cnt; i++) { + for (i = 0; i * SKEIN_512_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = skein_swap64((u64) i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_512_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byte_cnt - i*SKEIN_512_BLOCK_BYTES; + n = byte_cnt - i * SKEIN_512_BLOCK_BYTES; if (n >= SKEIN_512_BLOCK_BYTES) n = SKEIN_512_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val+i*SKEIN_512_BLOCK_BYTES, ctx->x, - n); + skein_put64_lsb_first(hash_val + i * SKEIN_512_BLOCK_BYTES, + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -506,7 +506,7 @@ int skein_1024_init(struct skein_1024_ctx *ctx, size_t hash_bit_len) cfg.w[1] = skein_swap64(hash_bit_len); cfg.w[2] = skein_swap64(SKEIN_CFG_TREE_INFO_SEQUENTIAL); /* zero pad config block */ - memset(&cfg.w[3], 0, sizeof(cfg) - 3*sizeof(cfg.w[0])); + memset(&cfg.w[3], 0, sizeof(cfg) - 3 * sizeof(cfg.w[0])); /* compute the initial chaining values from config block */ /* zero the chaining variables */ @@ -547,7 +547,7 @@ int skein_1024_init_ext(struct skein_1024_ctx *ctx, size_t hash_bit_len, skein_assert(sizeof(cfg.b) >= sizeof(ctx->x)); /* do a mini-Init right here */ /* set output hash bit count = state size */ - ctx->h.hash_bit_len = 8*sizeof(ctx->x); + ctx->h.hash_bit_len = 8 * sizeof(ctx->x); /* set tweaks: T0 = 0; T1 = KEY type */ skein_start_new_type(ctx, KEY); /* zero the initial chaining variables */ @@ -620,7 +620,7 @@ int skein_1024_update(struct skein_1024_ctx *ctx, const u8 *msg, */ if (msg_byte_cnt > SKEIN_1024_BLOCK_BYTES) { /* number of full blocks to process */ - n = (msg_byte_cnt-1) / SKEIN_1024_BLOCK_BYTES; + n = (msg_byte_cnt - 1) / SKEIN_1024_BLOCK_BYTES; skein_1024_process_block(ctx, msg, n, SKEIN_1024_BLOCK_BYTES); msg_byte_cnt -= n * SKEIN_1024_BLOCK_BYTES; @@ -668,19 +668,19 @@ int skein_1024_final(struct skein_1024_ctx *ctx, u8 *hash_val) memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(x, ctx->x, sizeof(x)); - for (i = 0; i*SKEIN_1024_BLOCK_BYTES < byte_cnt; i++) { + for (i = 0; i * SKEIN_1024_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = skein_swap64((u64) i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_1024_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byte_cnt - i*SKEIN_1024_BLOCK_BYTES; + n = byte_cnt - i * SKEIN_1024_BLOCK_BYTES; if (n >= SKEIN_1024_BLOCK_BYTES) n = SKEIN_1024_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val+i*SKEIN_1024_BLOCK_BYTES, ctx->x, - n); + skein_put64_lsb_first(hash_val + i * SKEIN_1024_BLOCK_BYTES, + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -775,19 +775,19 @@ int skein_256_output(struct skein_256_ctx *ctx, u8 *hash_val) memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(x, ctx->x, sizeof(x)); - for (i = 0; i*SKEIN_256_BLOCK_BYTES < byte_cnt; i++) { + for (i = 0; i * SKEIN_256_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = skein_swap64((u64) i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_256_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byte_cnt - i*SKEIN_256_BLOCK_BYTES; + n = byte_cnt - i * SKEIN_256_BLOCK_BYTES; if (n >= SKEIN_256_BLOCK_BYTES) n = SKEIN_256_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val+i*SKEIN_256_BLOCK_BYTES, ctx->x, - n); + skein_put64_lsb_first(hash_val + i * SKEIN_256_BLOCK_BYTES, + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -812,19 +812,19 @@ int skein_512_output(struct skein_512_ctx *ctx, u8 *hash_val) memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(x, ctx->x, sizeof(x)); - for (i = 0; i*SKEIN_512_BLOCK_BYTES < byte_cnt; i++) { + for (i = 0; i * SKEIN_512_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = skein_swap64((u64) i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_512_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byte_cnt - i*SKEIN_512_BLOCK_BYTES; + n = byte_cnt - i * SKEIN_512_BLOCK_BYTES; if (n >= SKEIN_512_BLOCK_BYTES) n = SKEIN_512_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val+i*SKEIN_512_BLOCK_BYTES, ctx->x, - n); + skein_put64_lsb_first(hash_val + i * SKEIN_512_BLOCK_BYTES, + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -849,19 +849,19 @@ int skein_1024_output(struct skein_1024_ctx *ctx, u8 *hash_val) memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(x, ctx->x, sizeof(x)); - for (i = 0; i*SKEIN_1024_BLOCK_BYTES < byte_cnt; i++) { + for (i = 0; i * SKEIN_1024_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = skein_swap64((u64) i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_1024_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byte_cnt - i*SKEIN_1024_BLOCK_BYTES; + n = byte_cnt - i * SKEIN_1024_BLOCK_BYTES; if (n >= SKEIN_1024_BLOCK_BYTES) n = SKEIN_1024_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val+i*SKEIN_1024_BLOCK_BYTES, ctx->x, - n); + skein_put64_lsb_first(hash_val + i * SKEIN_1024_BLOCK_BYTES, + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } diff --git a/drivers/staging/skein/skein_base.h b/drivers/staging/skein/skein_base.h index 9c4be1a..6289e1e 100644 --- a/drivers/staging/skein/skein_base.h +++ b/drivers/staging/skein/skein_base.h @@ -32,7 +32,7 @@ /* below two prototype assume we are handed aligned data */ #define skein_put64_lsb_first(dst08, src64, b_cnt) memcpy(dst08, src64, b_cnt) #define skein_get64_lsb_first(dst64, src08, w_cnt) \ - memcpy(dst64, src08, 8*(w_cnt)) + memcpy(dst64, src08, 8 * (w_cnt)) #define skein_swap64(w64) (w64) enum { @@ -48,17 +48,17 @@ enum { #define SKEIN_1024_STATE_WORDS 16 #define SKEIN_MAX_STATE_WORDS 16 -#define SKEIN_256_STATE_BYTES (8*SKEIN_256_STATE_WORDS) -#define SKEIN_512_STATE_BYTES (8*SKEIN_512_STATE_WORDS) -#define SKEIN_1024_STATE_BYTES (8*SKEIN_1024_STATE_WORDS) +#define SKEIN_256_STATE_BYTES (8 * SKEIN_256_STATE_WORDS) +#define SKEIN_512_STATE_BYTES (8 * SKEIN_512_STATE_WORDS) +#define SKEIN_1024_STATE_BYTES (8 * SKEIN_1024_STATE_WORDS) -#define SKEIN_256_STATE_BITS (64*SKEIN_256_STATE_WORDS) -#define SKEIN_512_STATE_BITS (64*SKEIN_512_STATE_WORDS) -#define SKEIN_1024_STATE_BITS (64*SKEIN_1024_STATE_WORDS) +#define SKEIN_256_STATE_BITS (64 * SKEIN_256_STATE_WORDS) +#define SKEIN_512_STATE_BITS (64 * SKEIN_512_STATE_WORDS) +#define SKEIN_1024_STATE_BITS (64 * SKEIN_1024_STATE_WORDS) -#define SKEIN_256_BLOCK_BYTES (8*SKEIN_256_STATE_WORDS) -#define SKEIN_512_BLOCK_BYTES (8*SKEIN_512_STATE_WORDS) -#define SKEIN_1024_BLOCK_BYTES (8*SKEIN_1024_STATE_WORDS) +#define SKEIN_256_BLOCK_BYTES (8 * SKEIN_256_STATE_WORDS) +#define SKEIN_512_BLOCK_BYTES (8 * SKEIN_512_STATE_WORDS) +#define SKEIN_1024_BLOCK_BYTES (8 * SKEIN_1024_STATE_WORDS) struct skein_ctx_hdr { size_t hash_bit_len; /* size of hash result, in bits */ @@ -203,7 +203,7 @@ int skein_1024_output(struct skein_1024_ctx *ctx, u8 *hash_val); #define SKEIN_SCHEMA_VER SKEIN_MK_64(SKEIN_VERSION, SKEIN_ID_STRING_LE) #define SKEIN_KS_PARITY SKEIN_MK_64(0x1BD11BDA, 0xA9FC1A22) -#define SKEIN_CFG_STR_LEN (4*8) +#define SKEIN_CFG_STR_LEN (4 * 8) /* bit field definitions in config block tree_info word */ #define SKEIN_CFG_TREE_LEAF_SIZE_POS (0) @@ -322,9 +322,9 @@ enum { #define SKEIN_512_ROUNDS_TOTAL (72) #define SKEIN_1024_ROUNDS_TOTAL (80) #else /* allow command-line define in range 8*(5..14) */ -#define SKEIN_256_ROUNDS_TOTAL (8*((((SKEIN_ROUNDS/100) + 5) % 10) + 5)) -#define SKEIN_512_ROUNDS_TOTAL (8*((((SKEIN_ROUNDS/10) + 5) % 10) + 5)) -#define SKEIN_1024_ROUNDS_TOTAL (8*((((SKEIN_ROUNDS) + 5) % 10) + 5)) +#define SKEIN_256_ROUNDS_TOTAL (8 * ((((SKEIN_ROUNDS / 100) + 5) % 10) + 5)) +#define SKEIN_512_ROUNDS_TOTAL (8 * ((((SKEIN_ROUNDS / 10) + 5) % 10) + 5)) +#define SKEIN_1024_ROUNDS_TOTAL (8 * ((((SKEIN_ROUNDS) + 5) % 10) + 5)) #endif #endif /* ifndef _SKEIN_H_ */ diff --git a/drivers/staging/skein/skein_block.c b/drivers/staging/skein/skein_block.c index 1a547b30..a1a3c39 100644 --- a/drivers/staging/skein/skein_block.c +++ b/drivers/staging/skein/skein_block.c @@ -121,10 +121,10 @@ #if !(SKEIN_USE_ASM & 512) #undef RCNT -#define RCNT (SKEIN_512_ROUNDS_TOTAL/8) +#define RCNT (SKEIN_512_ROUNDS_TOTAL / 8) #ifdef SKEIN_LOOP /* configure how much to unroll the loop */ -#define SKEIN_UNROLL_512 (((SKEIN_LOOP)/10)%10) +#define SKEIN_UNROLL_512 (((SKEIN_LOOP) / 10) % 10) #else #define SKEIN_UNROLL_512 (0) #endif @@ -202,7 +202,7 @@ } while (0) #define R512_UNROLL_R(NN) \ ((SKEIN_UNROLL_512 == 0 && \ - SKEIN_512_ROUNDS_TOTAL/8 > (NN)) || \ + SKEIN_512_ROUNDS_TOTAL / 8 > (NN)) || \ (SKEIN_UNROLL_512 > (NN))) #if (SKEIN_UNROLL_512 > 14) @@ -212,7 +212,7 @@ #if !(SKEIN_USE_ASM & 1024) #undef RCNT -#define RCNT (SKEIN_1024_ROUNDS_TOTAL/8) +#define RCNT (SKEIN_1024_ROUNDS_TOTAL / 8) #ifdef SKEIN_LOOP /* configure how much to unroll the loop */ #define SKEIN_UNROLL_1024 ((SKEIN_LOOP) % 10) #else @@ -313,28 +313,28 @@ #define R1024_8_ROUNDS(R) \ do { \ R1024(00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, \ - 13, 14, 15, R1024_0, 8*(R) + 1); \ + 13, 14, 15, R1024_0, 8 * (R) + 1); \ R1024(00, 09, 02, 13, 06, 11, 04, 15, 10, 07, 12, 03, 14, \ - 05, 08, 01, R1024_1, 8*(R) + 2); \ + 05, 08, 01, R1024_1, 8 * (R) + 2); \ R1024(00, 07, 02, 05, 04, 03, 06, 01, 12, 15, 14, 13, 08, \ - 11, 10, 09, R1024_2, 8*(R) + 3); \ + 11, 10, 09, R1024_2, 8 * (R) + 3); \ R1024(00, 15, 02, 11, 06, 13, 04, 09, 14, 01, 08, 05, 10, \ - 03, 12, 07, R1024_3, 8*(R) + 4); \ - I1024(2*(R)); \ + 03, 12, 07, R1024_3, 8 * (R) + 4); \ + I1024(2 * (R)); \ R1024(00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, \ - 13, 14, 15, R1024_4, 8*(R) + 5); \ + 13, 14, 15, R1024_4, 8 * (R) + 5); \ R1024(00, 09, 02, 13, 06, 11, 04, 15, 10, 07, 12, 03, 14, \ - 05, 08, 01, R1024_5, 8*(R) + 6); \ + 05, 08, 01, R1024_5, 8 * (R) + 6); \ R1024(00, 07, 02, 05, 04, 03, 06, 01, 12, 15, 14, 13, 08, \ - 11, 10, 09, R1024_6, 8*(R) + 7); \ + 11, 10, 09, R1024_6, 8 * (R) + 7); \ R1024(00, 15, 02, 11, 06, 13, 04, 09, 14, 01, 08, 05, 10, \ - 03, 12, 07, R1024_7, 8*(R) + 8); \ - I1024(2*(R)+1); \ + 03, 12, 07, R1024_7, 8 * (R) + 8); \ + I1024(2 * (R) + 1); \ } while (0) #define R1024_UNROLL_R(NN) \ ((SKEIN_UNROLL_1024 == 0 && \ - SKEIN_1024_ROUNDS_TOTAL/8 > (NN)) || \ + SKEIN_1024_ROUNDS_TOTAL / 8 > (NN)) || \ (SKEIN_UNROLL_1024 > (NN))) #if (SKEIN_UNROLL_1024 > 14) @@ -353,10 +353,10 @@ void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blk_ptr, size_t r; #if SKEIN_UNROLL_256 /* key schedule: chaining vars + tweak + "rot"*/ - u64 kw[WCNT+4+RCNT*2]; + u64 kw[WCNT + 4 + RCNT * 2]; #else /* key schedule words : chaining vars + tweak */ - u64 kw[WCNT+4]; + u64 kw[WCNT + 4]; #endif u64 X0, X1, X2, X3; /* local copy of context vars, for speed */ u64 w[WCNT]; /* local copy of input block */ @@ -482,9 +482,11 @@ void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blk_ptr, }; size_t r; #if SKEIN_UNROLL_512 - u64 kw[WCNT+4+RCNT*2]; /* key sched: chaining vars + tweak + "rot"*/ + /* key sched: chaining vars + tweak + "rot"*/ + u64 kw[WCNT + 4 + RCNT * 2]; #else - u64 kw[WCNT+4]; /* key schedule words : chaining vars + tweak */ + /* key schedule words : chaining vars + tweak */ + u64 kw[WCNT + 4]; #endif u64 X0, X1, X2, X3, X4, X5, X6, X7; /* local copies, for speed */ u64 w[WCNT]; /* local copy of input block */ @@ -631,9 +633,11 @@ void skein_1024_process_block(struct skein_1024_ctx *ctx, const u8 *blk_ptr, }; size_t r; #if (SKEIN_UNROLL_1024 != 0) - u64 kw[WCNT+4+RCNT*2]; /* key sched: chaining vars + tweak + "rot" */ + /* key sched: chaining vars + tweak + "rot" */ + u64 kw[WCNT + 4 + RCNT * 2]; #else - u64 kw[WCNT+4]; /* key schedule words : chaining vars + tweak */ + /* key schedule words : chaining vars + tweak */ + u64 kw[WCNT + 4]; #endif /* local copy of vars, for speed */ diff --git a/drivers/staging/skein/threefish_api.h b/drivers/staging/skein/threefish_api.h index 8e0a0b7..615e467 100644 --- a/drivers/staging/skein/threefish_api.h +++ b/drivers/staging/skein/threefish_api.h @@ -52,7 +52,7 @@ enum threefish_size { */ struct threefish_key { u64 state_size; - u64 key[SKEIN_MAX_STATE_WORDS+1]; /* max number of key words*/ + u64 key[SKEIN_MAX_STATE_WORDS + 1]; /* max number of key words*/ u64 tweak[3]; }; -- cgit v0.10.2 From 3faa966bfbd8a6059a7fd6e4f0ea37c47f0e4d74 Mon Sep 17 00:00:00 2001 From: Manu Kumar Date: Mon, 4 Apr 2016 20:09:12 -0700 Subject: staging: skein: cleanup: align parentheses Aligned parentheses to conform to the coding style. Signed-off-by: Manu Kumar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/skein/skein_base.c b/drivers/staging/skein/skein_base.c index 3e3485c..dde6f7e 100644 --- a/drivers/staging/skein/skein_base.c +++ b/drivers/staging/skein/skein_base.c @@ -205,7 +205,7 @@ int skein_256_final(struct skein_256_ctx *ctx, u8 *hash_val) /* zero pad b[] if necessary */ if (ctx->h.b_cnt < SKEIN_256_BLOCK_BYTES) memset(&ctx->b[ctx->h.b_cnt], 0, - SKEIN_256_BLOCK_BYTES - ctx->h.b_cnt); + SKEIN_256_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ skein_256_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); @@ -432,7 +432,7 @@ int skein_512_final(struct skein_512_ctx *ctx, u8 *hash_val) /* zero pad b[] if necessary */ if (ctx->h.b_cnt < SKEIN_512_BLOCK_BYTES) memset(&ctx->b[ctx->h.b_cnt], 0, - SKEIN_512_BLOCK_BYTES - ctx->h.b_cnt); + SKEIN_512_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ skein_512_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); @@ -654,7 +654,7 @@ int skein_1024_final(struct skein_1024_ctx *ctx, u8 *hash_val) /* zero pad b[] if necessary */ if (ctx->h.b_cnt < SKEIN_1024_BLOCK_BYTES) memset(&ctx->b[ctx->h.b_cnt], 0, - SKEIN_1024_BLOCK_BYTES - ctx->h.b_cnt); + SKEIN_1024_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ skein_1024_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); @@ -702,7 +702,7 @@ int skein_256_final_pad(struct skein_256_ctx *ctx, u8 *hash_val) /* zero pad b[] if necessary */ if (ctx->h.b_cnt < SKEIN_256_BLOCK_BYTES) memset(&ctx->b[ctx->h.b_cnt], 0, - SKEIN_256_BLOCK_BYTES - ctx->h.b_cnt); + SKEIN_256_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ skein_256_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); @@ -724,7 +724,7 @@ int skein_512_final_pad(struct skein_512_ctx *ctx, u8 *hash_val) /* zero pad b[] if necessary */ if (ctx->h.b_cnt < SKEIN_512_BLOCK_BYTES) memset(&ctx->b[ctx->h.b_cnt], 0, - SKEIN_512_BLOCK_BYTES - ctx->h.b_cnt); + SKEIN_512_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ skein_512_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); @@ -746,7 +746,7 @@ int skein_1024_final_pad(struct skein_1024_ctx *ctx, u8 *hash_val) /* zero pad b[] if necessary */ if (ctx->h.b_cnt < SKEIN_1024_BLOCK_BYTES) memset(&ctx->b[ctx->h.b_cnt], 0, - SKEIN_1024_BLOCK_BYTES - ctx->h.b_cnt); + SKEIN_1024_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ skein_1024_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); @@ -861,7 +861,7 @@ int skein_1024_output(struct skein_1024_ctx *ctx, u8 *hash_val) n = SKEIN_1024_BLOCK_BYTES; /* "output" the ctr mode bytes */ skein_put64_lsb_first(hash_val + i * SKEIN_1024_BLOCK_BYTES, - ctx->x, n); + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } diff --git a/drivers/staging/skein/skein_generic.c b/drivers/staging/skein/skein_generic.c index e29b9ab..11f5e53 100644 --- a/drivers/staging/skein/skein_generic.c +++ b/drivers/staging/skein/skein_generic.c @@ -27,7 +27,7 @@ static int skein256_init(struct shash_desc *desc) } static int skein256_update(struct shash_desc *desc, const u8 *data, - unsigned int len) + unsigned int len) { return skein_256_update((struct skein_256_ctx *)shash_desc_ctx(desc), data, len); @@ -62,7 +62,7 @@ static int skein512_init(struct shash_desc *desc) } static int skein512_update(struct shash_desc *desc, const u8 *data, - unsigned int len) + unsigned int len) { return skein_512_update((struct skein_512_ctx *)shash_desc_ctx(desc), data, len); @@ -97,7 +97,7 @@ static int skein1024_init(struct shash_desc *desc) } static int skein1024_update(struct shash_desc *desc, const u8 *data, - unsigned int len) + unsigned int len) { return skein_1024_update((struct skein_1024_ctx *)shash_desc_ctx(desc), data, len); -- cgit v0.10.2 From fcc2cf12a3192dc2b4181f06f088fa2b983794a9 Mon Sep 17 00:00:00 2001 From: Geliang Tang Date: Tue, 5 Apr 2016 09:58:04 +0800 Subject: staging: rtl8712: use container_of() instead of LIST_CONTAINOR() This patch drops the local definition of LIST_CONTAINOR(), and uses container_of() instead of it. Signed-off-by: Geliang Tang Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/osdep_service.h b/drivers/staging/rtl8712/osdep_service.h index 076d508..ad041c9 100644 --- a/drivers/staging/rtl8712/osdep_service.h +++ b/drivers/staging/rtl8712/osdep_service.h @@ -57,9 +57,6 @@ struct __queue { spin_lock_init(&((pqueue)->lock)); \ } while (0) -#define LIST_CONTAINOR(ptr, type, member) \ - ((type *)((char *)(ptr)-(SIZE_T)(&((type *)0)->member))) - static inline u32 _down_sema(struct semaphore *sema) { if (down_interruptible(sema)) diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c index d187508..f25b34c 100644 --- a/drivers/staging/rtl8712/rtl8712_recv.c +++ b/drivers/staging/rtl8712/rtl8712_recv.c @@ -204,7 +204,7 @@ static union recv_frame *recvframe_defrag(struct _adapter *adapter, pfree_recv_queue = &adapter->recvpriv.free_recv_queue; phead = &defrag_q->queue; plist = phead->next; - prframe = LIST_CONTAINOR(plist, union recv_frame, u); + prframe = container_of(plist, union recv_frame, u.list); list_del_init(&prframe->u.list); pfhdr = &prframe->u.hdr; curfragnum = 0; @@ -219,7 +219,7 @@ static union recv_frame *recvframe_defrag(struct _adapter *adapter, plist = &defrag_q->queue; plist = plist->next; while (!end_of_queue_search(phead, plist)) { - pnextrframe = LIST_CONTAINOR(plist, union recv_frame, u); + pnextrframe = container_of(plist, union recv_frame, u.list); pnfhdr = &pnextrframe->u.hdr; /*check the fragment sequence (2nd ~n fragment frame) */ if (curfragnum != pnfhdr->attrib.frag_num) { @@ -492,7 +492,7 @@ static int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, phead = &ppending_recvframe_queue->queue; plist = phead->next; while (!end_of_queue_search(phead, plist)) { - pnextrframe = LIST_CONTAINOR(plist, union recv_frame, u); + pnextrframe = container_of(plist, union recv_frame, u.list); pnextattrib = &pnextrframe->u.hdr.attrib; if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num)) plist = plist->next; @@ -525,14 +525,14 @@ int r8712_recv_indicatepkts_in_order(struct _adapter *padapter, if (list_empty(phead)) return true; - prframe = LIST_CONTAINOR(plist, union recv_frame, u); + prframe = container_of(plist, union recv_frame, u.list); pattrib = &prframe->u.hdr.attrib; preorder_ctrl->indicate_seq = pattrib->seq_num; } /* Prepare indication list and indication. * Check if there is any packet need indicate. */ while (!list_empty(phead)) { - prframe = LIST_CONTAINOR(plist, union recv_frame, u); + prframe = container_of(plist, union recv_frame, u.list); pattrib = &prframe->u.hdr.attrib; if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) { plist = plist->next; diff --git a/drivers/staging/rtl8712/rtl8712_xmit.c b/drivers/staging/rtl8712/rtl8712_xmit.c index b21a60e..7e0b945 100644 --- a/drivers/staging/rtl8712/rtl8712_xmit.c +++ b/drivers/staging/rtl8712/rtl8712_xmit.c @@ -169,8 +169,8 @@ static struct xmit_frame *dequeue_one_xmitframe(struct xmit_priv *pxmitpriv, xmitframe_phead = &pframe_queue->queue; xmitframe_plist = xmitframe_phead->next; if (!end_of_queue_search(xmitframe_phead, xmitframe_plist)) { - pxmitframe = LIST_CONTAINOR(xmitframe_plist, - struct xmit_frame, list); + pxmitframe = container_of(xmitframe_plist, + struct xmit_frame, list); list_del_init(&pxmitframe->list); ptxservq->qcnt--; phwxmit->txcmdcnt++; @@ -209,8 +209,8 @@ static struct xmit_frame *dequeue_xframe_ex(struct xmit_priv *pxmitpriv, sta_phead = &phwxmit->sta_queue->queue; sta_plist = sta_phead->next; while (!end_of_queue_search(sta_phead, sta_plist)) { - ptxservq = LIST_CONTAINOR(sta_plist, struct tx_servq, - tx_pending); + ptxservq = container_of(sta_plist, struct tx_servq, + tx_pending); pframe_queue = &ptxservq->sta_pending; pxmitframe = dequeue_one_xmitframe(pxmitpriv, phwxmit, ptxservq, pframe_queue); diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c index 6c02e9b..e205adf 100644 --- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c +++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c @@ -1060,8 +1060,8 @@ static int r8711_wx_set_wap(struct net_device *dev, while (1) { if (end_of_queue_search(phead, pmlmepriv->pscanned)) break; - pnetwork = LIST_CONTAINOR(pmlmepriv->pscanned, - struct wlan_network, list); + pnetwork = container_of(pmlmepriv->pscanned, + struct wlan_network, list); pmlmepriv->pscanned = pmlmepriv->pscanned->next; dst_bssid = pnetwork->network.MacAddress; if (!memcmp(dst_bssid, temp->sa_data, ETH_ALEN)) { @@ -1216,7 +1216,7 @@ static int r8711_wx_get_scan(struct net_device *dev, ret = -E2BIG; break; } - pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list); + pnetwork = container_of(plist, struct wlan_network, list); ev = translate_scan(padapter, a, pnetwork, ev, stop); plist = plist->next; } @@ -1271,8 +1271,8 @@ static int r8711_wx_set_essid(struct net_device *dev, while (1) { if (end_of_queue_search(phead, pmlmepriv->pscanned)) break; - pnetwork = LIST_CONTAINOR(pmlmepriv->pscanned, - struct wlan_network, list); + pnetwork = container_of(pmlmepriv->pscanned, + struct wlan_network, list); pmlmepriv->pscanned = pmlmepriv->pscanned->next; dst_ssid = pnetwork->network.Ssid.Ssid; if ((!memcmp(dst_ssid, src_ssid, ndis_ssid.SsidLength)) @@ -1986,7 +1986,7 @@ static int r871x_get_ap_info(struct net_device *dev, while (1) { if (end_of_queue_search(phead, plist)) break; - pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list); + pnetwork = container_of(plist, struct wlan_network, list); if (!mac_pton(data, bssid)) { netdev_info(dev, "r8712u: Invalid BSSID '%s'.\n", (u8 *)data); diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c index f8b1c89..772bf9f 100644 --- a/drivers/staging/rtl8712/rtl871x_mlme.c +++ b/drivers/staging/rtl8712/rtl871x_mlme.c @@ -155,7 +155,7 @@ static struct wlan_network *_r8712_find_network(struct __queue *scanned_queue, phead = &scanned_queue->queue; plist = phead->next; while (plist != phead) { - pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list); + pnetwork = container_of(plist, struct wlan_network, list); plist = plist->next; if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN)) break; @@ -176,7 +176,7 @@ static void _free_network_queue(struct _adapter *padapter) phead = &scanned_queue->queue; plist = phead->next; while (!end_of_queue_search(phead, plist)) { - pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list); + pnetwork = container_of(plist, struct wlan_network, list); plist = plist->next; _free_network(pmlmepriv, pnetwork); } @@ -304,7 +304,7 @@ struct wlan_network *r8712_get_oldest_wlan_network( while (1) { if (end_of_queue_search(phead, plist) == true) break; - pwlan = LIST_CONTAINOR(plist, struct wlan_network, list); + pwlan = container_of(plist, struct wlan_network, list); if (pwlan->fixed != true) { if (oldest == NULL || time_after((unsigned long)oldest->last_scanned, @@ -390,7 +390,7 @@ static void update_scanned_network(struct _adapter *adapter, if (end_of_queue_search(phead, plist)) break; - pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list); + pnetwork = container_of(plist, struct wlan_network, list); if (is_same_network(&pnetwork->network, target)) break; if ((oldest == ((struct wlan_network *)0)) || @@ -1135,8 +1135,8 @@ int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv) } return _FAIL; } - pnetwork = LIST_CONTAINOR(pmlmepriv->pscanned, - struct wlan_network, list); + pnetwork = container_of(pmlmepriv->pscanned, + struct wlan_network, list); if (pnetwork == NULL) return _FAIL; pmlmepriv->pscanned = pmlmepriv->pscanned->next; diff --git a/drivers/staging/rtl8712/rtl871x_recv.c b/drivers/staging/rtl8712/rtl871x_recv.c index 616ca39..23c1438 100644 --- a/drivers/staging/rtl8712/rtl871x_recv.c +++ b/drivers/staging/rtl8712/rtl871x_recv.c @@ -142,7 +142,7 @@ void r8712_free_recvframe_queue(struct __queue *pframequeue, phead = &pframequeue->queue; plist = phead->next; while (!end_of_queue_search(phead, plist)) { - precvframe = LIST_CONTAINOR(plist, union recv_frame, u); + precvframe = container_of(plist, union recv_frame, u.list); plist = plist->next; r8712_free_recvframe(precvframe, pfree_recv_queue); } diff --git a/drivers/staging/rtl8712/rtl871x_sta_mgt.c b/drivers/staging/rtl8712/rtl871x_sta_mgt.c index e90c00d..e11ce28 100644 --- a/drivers/staging/rtl8712/rtl871x_sta_mgt.c +++ b/drivers/staging/rtl8712/rtl871x_sta_mgt.c @@ -216,8 +216,8 @@ void r8712_free_all_stainfo(struct _adapter *padapter) phead = &(pstapriv->sta_hash[index]); plist = phead->next; while (!end_of_queue_search(phead, plist)) { - psta = LIST_CONTAINOR(plist, - struct sta_info, hash_list); + psta = container_of(plist, + struct sta_info, hash_list); plist = plist->next; if (pbcmc_stainfo != psta) r8712_free_stainfo(padapter, psta); @@ -241,7 +241,7 @@ struct sta_info *r8712_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr) phead = &(pstapriv->sta_hash[index]); plist = phead->next; while (!end_of_queue_search(phead, plist)) { - psta = LIST_CONTAINOR(plist, struct sta_info, hash_list); + psta = container_of(plist, struct sta_info, hash_list); if ((!memcmp(psta->hwaddr, hwaddr, ETH_ALEN))) { /* if found the matched address */ break; diff --git a/drivers/staging/rtl8712/rtl871x_xmit.c b/drivers/staging/rtl8712/rtl871x_xmit.c index c6d952f..99256ba 100644 --- a/drivers/staging/rtl8712/rtl871x_xmit.c +++ b/drivers/staging/rtl8712/rtl871x_xmit.c @@ -848,7 +848,7 @@ void r8712_free_xmitframe_queue(struct xmit_priv *pxmitpriv, phead = &pframequeue->queue; plist = phead->next; while (!end_of_queue_search(phead, plist)) { - pxmitframe = LIST_CONTAINOR(plist, struct xmit_frame, list); + pxmitframe = container_of(plist, struct xmit_frame, list); plist = plist->next; r8712_free_xmitframe(pxmitpriv, pxmitframe); } -- cgit v0.10.2 From 708075cf1b3218e262502ce27d81a4bcceccaa81 Mon Sep 17 00:00:00 2001 From: Nicholas Sim Date: Tue, 5 Apr 2016 16:59:58 +0100 Subject: staging: rtl8192u: remove blank lines before braces (closing) Remove unneeded blank lines occuring before closing braces Signed-off-by: Nicholas Sim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 849a95e..2f506b8 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -235,7 +235,6 @@ static void CamResetAllEntry(struct net_device *dev) */ ulcommand |= BIT(31) | BIT(30); write_nic_dword(dev, RWCAM, ulcommand); - } @@ -319,8 +318,6 @@ void write_nic_byte(struct net_device *dev, int indx, u8 data) if (status < 0) netdev_err(dev, "write_nic_byte TimeOut! status: %d\n", status); - - } @@ -345,7 +342,6 @@ void write_nic_word(struct net_device *dev, int indx, u16 data) if (status < 0) netdev_err(dev, "write_nic_word TimeOut! status: %d\n", status); - } @@ -372,7 +368,6 @@ void write_nic_dword(struct net_device *dev, int indx, u32 data) if (status < 0) netdev_err(dev, "write_nic_dword TimeOut! status: %d\n", status); - } @@ -776,7 +771,6 @@ static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats) return (sizeof(rx_desc_819x_usb) + pstats->RxDrvInfoSize + pstats->RxBufShift); - } static int rtl8192_rx_initiate(struct net_device *dev) { @@ -943,7 +937,6 @@ inline u16 ieeerate2rtlrate(int rate) return 11; default: return 3; - } } static u16 rtl_rate[] = {10, 20, 55, 110, 60, 90, 120, 180, 240, 360, 480, 540}; @@ -1149,7 +1142,6 @@ static void rtl8192_tx_isr(struct urb *tx_urb) return; /* avoid further processing AMSDU */ } } - } static void rtl8192_config_rate(struct net_device *dev, u16 *rate_config) @@ -1272,7 +1264,6 @@ static void rtl8192_update_cap(struct net_device *dev, u16 cap) priv->slot_time = slot_time; write_nic_byte(dev, SLOT_TIME, slot_time); } - } static void rtl8192_net_update(struct net_device *dev) { @@ -1303,9 +1294,6 @@ static void rtl8192_net_update(struct net_device *dev) write_nic_word(dev, BCN_TCFG, BcnTimeCfg); } - - - } /* temporary hw beacon is not used any more. @@ -1782,7 +1770,6 @@ static short rtl8192_usb_initendpoints(struct net_device *dev) netdev_dbg(dev, "End of initendpoints\n"); return 0; - } #ifdef THOMAS_BEACON static void rtl8192_usb_deleteendpoints(struct net_device *dev) @@ -1820,7 +1807,6 @@ void rtl8192_usb_deleteendpoints(struct net_device *dev) } kfree(priv->rx_urb); priv->rx_urb = NULL; - } #else kfree(priv->rx_urb); @@ -1992,7 +1978,6 @@ static int rtl8192_handle_beacon(struct net_device *dev, rtl8192_qos_handle_probe_response(priv, 1, network); schedule_delayed_work(&priv->update_beacon_wq, 0); return 0; - } /* @@ -2223,7 +2208,6 @@ static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) priv->ieee80211->pHTInfo->bEnableHT = 0; RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode); rtl8192_refresh_supportrate(priv); - } /* init priv variables here. only non_zero value should be initialized here. */ static void rtl8192_init_priv_variable(struct net_device *dev) @@ -2627,7 +2611,6 @@ static void rtl8192_read_eeprom_info(struct net_device *dev) default: priv->CustomerID = RT_CID_DEFAULT; break; - } switch (priv->CustomerID) { @@ -2642,7 +2625,6 @@ static void rtl8192_read_eeprom_info(struct net_device *dev) default: priv->LedStrategy = SW_LED_MODE0; break; - } @@ -2797,8 +2779,6 @@ static void rtl8192_hwconfig(struct net_device *dev) /* Set Tx Antenna including Feedback control */ /* Set Auto Rate fallback control */ - - } @@ -3037,7 +3017,6 @@ static bool rtl8192_adapter_start(struct net_device *dev) priv->cck_present_attentuation_difference = 0; priv->cck_present_attentuation = priv->cck_present_attentuation_20Mdefault; - } } write_nic_byte(dev, 0x87, 0x0); @@ -3222,7 +3201,6 @@ static RESET_TYPE rtl819x_ifcheck_resetornot(struct net_device *dev) } else { return RESET_TYPE_NORESET; } - } static void rtl8192_cancel_deferred_work(struct r8192_priv *priv); @@ -3485,7 +3463,6 @@ static void rtl819x_watchdog_wqcallback(struct work_struct *work) priv->ieee80211->link_change(dev); queue_work(priv->ieee80211->wq, &priv->ieee80211->associate_procedure_wq); - } } priv->ieee80211->LinkDetectInfo.NumRecvBcnInPeriod = 0; @@ -3510,7 +3487,6 @@ static void rtl819x_watchdog_wqcallback(struct work_struct *work) priv->bForcedSilentReset = false; priv->bResetInProgress = false; RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n"); - } static void watch_dog_timer_callback(unsigned long data) @@ -3560,7 +3536,6 @@ static int rtl8192_open(struct net_device *dev) ret = rtl8192_up(dev); up(&priv->wx_sem); return ret; - } @@ -3587,7 +3562,6 @@ static int rtl8192_close(struct net_device *dev) up(&priv->wx_sem); return ret; - } int rtl8192_down(struct net_device *dev) @@ -3649,7 +3623,6 @@ void rtl8192_commit(struct net_device *dev) rtl8192_rtx_disable(dev); reset_status = _rtl8192_up(dev); - } static void rtl8192_restart(struct work_struct *work) @@ -4111,7 +4084,6 @@ static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer, (((priv->undecorated_smoothed_pwdb) * (Rx_Smooth_Factor - 1)) + (pprevious_stats->RxPWDBAll)) / (Rx_Smooth_Factor); } - } /* Check EVM */ @@ -4159,8 +4131,6 @@ static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer, } } } - - } /*----------------------------------------------------------------------------- @@ -4542,7 +4512,6 @@ static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb, bpacket_match_bssid, bpacket_toself, bPacketBeacon, bToSelfBA); rtl8192_record_rxdesc_forlateruse(pstats, &previous_stats); - } /** @@ -4758,7 +4727,6 @@ static void query_rxdesc_status(struct sk_buff *skb, RT_TRACE(COMP_RXDESC, "driver_info->FirstAGGR = %d, driver_info->PartAggr = %d\n", driver_info->FirstAGGR, driver_info->PartAggr); - } skb_pull(skb, sizeof(rx_desc_819x_usb)); @@ -4822,7 +4790,6 @@ static void rtl8192_rx_nomal(struct sk_buff *skb) netdev_dbg(dev, "actual_length: %d\n", skb->len); dev_kfree_skb_any(skb); } - } static void rtl819xusb_process_received_packet( @@ -4937,7 +4904,6 @@ static void rtl8192_irq_rx_tasklet(struct r8192_priv *priv) info->out_pipe); dev_kfree_skb(skb); break; - } } } @@ -5197,7 +5163,6 @@ void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType, } } } - } /*************************************************************************** -- cgit v0.10.2 From 345c32ab9beed825a05af374f12256fabc5104be Mon Sep 17 00:00:00 2001 From: Nicholas Sim Date: Tue, 5 Apr 2016 17:07:47 +0100 Subject: staging: rtl8192u: remove blank lines after braces (opening) Remove unneeded blank lines appearing after opening braces as suggested by checkpatch.pl Signed-off-by: Nicholas Sim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 2f506b8..21d5693 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -323,7 +323,6 @@ void write_nic_byte(struct net_device *dev, int indx, u8 data) void write_nic_word(struct net_device *dev, int indx, u16 data) { - int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); @@ -347,7 +346,6 @@ void write_nic_word(struct net_device *dev, int indx, u16 data) void write_nic_dword(struct net_device *dev, int indx, u32 data) { - int status; struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); @@ -733,7 +731,6 @@ void rtl8192_update_msr(struct net_device *dev) * master (see the create BSS/IBSS func) */ if (priv->ieee80211->state == IEEE80211_LINKED) { - if (priv->ieee80211->iw_mode == IW_MODE_INFRA) msr |= (MSR_LINK_MANAGED << MSR_LINK_SHIFT); else if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) @@ -768,7 +765,6 @@ static void rtl8192_rx_isr(struct urb *urb); static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats) { - return (sizeof(rx_desc_819x_usb) + pstats->RxDrvInfoSize + pstats->RxBufShift); } @@ -1267,7 +1263,6 @@ static void rtl8192_update_cap(struct net_device *dev, u16 cap) } static void rtl8192_net_update(struct net_device *dev) { - struct r8192_priv *priv = ieee80211_priv(dev); struct ieee80211_network *net; u16 BcnTimeCfg = 0, BcnCW = 6, BcnIFS = 0xf; @@ -1725,7 +1720,6 @@ static short rtl8192_usb_initendpoints(struct net_device *dev) #ifndef JACKSON_NEW_RX for (i = 0; i < (MAX_RX_URB + 1); i++) { - priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); priv->rx_urb[i]->transfer_buffer = @@ -2658,7 +2652,6 @@ static short rtl8192_get_channel_map(struct net_device *dev) static short rtl8192_init(struct net_device *dev) { - struct r8192_priv *priv = ieee80211_priv(dev); memset(&(priv->stats), 0, sizeof(struct Stats)); @@ -3007,7 +3000,6 @@ static bool rtl8192_adapter_start(struct net_device *dev) bMaskByte2); for (i = 0; i < CCKTxBBGainTableLength; i++) { - if (TempCCk == priv->cck_txbbgain_table[i].ccktxbb_valuearray[0]) { priv->cck_present_attentuation_20Mdefault = (u8)i; break; @@ -3228,7 +3220,6 @@ static void CamRestoreAllEntry(struct net_device *dev) if ((priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP40) || (priv->ieee80211->pairwise_key_type == KEY_TYPE_WEP104)) { - for (EntryId = 0; EntryId < 4; EntryId++) { MacAddr = CAM_CONST_ADDR[EntryId]; setKey(dev, EntryId, EntryId, @@ -3237,7 +3228,6 @@ static void CamRestoreAllEntry(struct net_device *dev) } } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_TKIP) { - if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, (u8 *)dev->dev_addr, 0, NULL); @@ -3245,7 +3235,6 @@ static void CamRestoreAllEntry(struct net_device *dev) setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, MacAddr, 0, NULL); } else if (priv->ieee80211->pairwise_key_type == KEY_TYPE_CCMP) { - if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) setKey(dev, 4, 0, priv->ieee80211->pairwise_key_type, (u8 *)dev->dev_addr, 0, NULL); @@ -3446,7 +3435,6 @@ static void rtl819x_watchdog_wqcallback(struct work_struct *work) /* for AP roaming */ if (priv->ieee80211->state == IEEE80211_LINKED && priv->ieee80211->iw_mode == IW_MODE_INFRA) { - rtl819x_update_rxcounts(priv, &TotalRxBcnNum, &TotalRxDataNum); if ((TotalRxBcnNum + TotalRxDataNum) == 0) { #ifdef TODO @@ -4865,7 +4853,6 @@ static void rtl8192_rx_cmd(struct sk_buff *skb) }; if ((skb->len >= (20 + sizeof(rx_desc_819x_usb))) && (skb->len < RX_URB_SIZE)) { - query_rx_cmdpkt_desc_status(skb, &stats); /* prfd->queue_id = 1; */ @@ -5000,7 +4987,6 @@ fail: */ static void rtl8192_cancel_deferred_work(struct r8192_priv *priv) { - cancel_work_sync(&priv->reset_wq); cancel_delayed_work(&priv->watch_dog_wq); cancel_delayed_work(&priv->update_beacon_wq); -- cgit v0.10.2 From b7141cbaf9cb6361c97d34ed17989af01e77f437 Mon Sep 17 00:00:00 2001 From: Nicholas Sim Date: Tue, 5 Apr 2016 17:13:34 +0100 Subject: staging: rtl8192u: add blank line after declarations Add a blank line after function/struct/union/enum declarations for readability, as suggested in Documentation/CodingStyle Signed-off-by: Nicholas Sim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 21d5693..9b319b3 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -297,6 +297,7 @@ int read_nic_byte_E(struct net_device *dev, int indx, u8 *data) return 0; } + /* as 92U has extend page from 4 to 16, so modify functions below. */ void write_nic_byte(struct net_device *dev, int indx, u8 data) { @@ -768,6 +769,7 @@ static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats) return (sizeof(rx_desc_819x_usb) + pstats->RxDrvInfoSize + pstats->RxBufShift); } + static int rtl8192_rx_initiate(struct net_device *dev) { struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev); @@ -864,6 +866,7 @@ void rtl8192_set_rxconf(struct net_device *dev) write_nic_dword(dev, RCR, rxconf); } + /* wait to be removed */ void rtl8192_rx_enable(struct net_device *dev) { @@ -935,6 +938,7 @@ inline u16 ieeerate2rtlrate(int rate) return 3; } } + static u16 rtl_rate[] = {10, 20, 55, 110, 60, 90, 120, 180, 240, 360, 480, 540}; inline u16 rtl8192_rate2rate(short rate) { @@ -1261,6 +1265,7 @@ static void rtl8192_update_cap(struct net_device *dev, u16 cap) write_nic_byte(dev, SLOT_TIME, slot_time); } } + static void rtl8192_net_update(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); @@ -1298,6 +1303,7 @@ void rtl819xusb_beacon_tx(struct net_device *dev, u16 tx_rate) { } + inline u8 rtl8192_IsWirelessBMode(u16 rate) { if (((rate <= 110) && (rate != 60) && (rate != 90)) || (rate == 220)) @@ -1765,6 +1771,7 @@ static short rtl8192_usb_initendpoints(struct net_device *dev) netdev_dbg(dev, "End of initendpoints\n"); return 0; } + #ifdef THOMAS_BEACON static void rtl8192_usb_deleteendpoints(struct net_device *dev) { @@ -1868,6 +1875,7 @@ static void rtl8192_update_beacon(struct work_struct *work) net->bssht.bdRT2RTLongSlotTime; rtl8192_update_cap(dev, net->capability); } + /* * background support to run QoS activate functionality */ @@ -2161,6 +2169,7 @@ static u8 rtl8192_getSupportedWireleeMode(struct net_device *dev) } return ret; } + static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) { struct r8192_priv *priv = ieee80211_priv(dev); @@ -2203,6 +2212,7 @@ static void rtl8192_SetWirelessMode(struct net_device *dev, u8 wireless_mode) RT_TRACE(COMP_INIT, "Current Wireless Mode is %x\n", wireless_mode); rtl8192_refresh_supportrate(priv); } + /* init priv variables here. only non_zero value should be initialized here. */ static void rtl8192_init_priv_variable(struct net_device *dev) { @@ -2410,6 +2420,7 @@ static inline u16 endian_swap(u16 *data) *data = (tmp >> 8) | (tmp << 8); return *data; } + static void rtl8192_read_eeprom_info(struct net_device *dev) { u16 wEPROM_ID = 0; @@ -3268,6 +3279,7 @@ static void CamRestoreAllEntry(struct net_device *dev) CAM_CONST_ADDR[0], 0, NULL); } } + /* This function is used to fix Tx/Rx stop bug temporarily. * This function will do "system reset" to NIC when Tx or Rx is stuck. * The method checking Tx/Rx stuck of this function is supported by FW, @@ -3485,6 +3497,7 @@ static void watch_dog_timer_callback(unsigned long data) mod_timer(&priv->watch_dog_timer, jiffies + msecs_to_jiffies(IEEE80211_WATCH_DOG_TIME)); } + static int _rtl8192_up(struct net_device *dev) { struct r8192_priv *priv = ieee80211_priv(dev); @@ -4159,6 +4172,7 @@ static u8 rtl819x_evm_dbtopercentage(char value) ret_val = 100; return ret_val; } + /* We want good-looking for signal strength/quality */ static long rtl819x_signal_scale_mapping(long currsig) { -- cgit v0.10.2 From b8a99fb513a63397b43f63f4825371f64a79e821 Mon Sep 17 00:00:00 2001 From: Nicholas Sim Date: Tue, 5 Apr 2016 17:21:32 +0100 Subject: staging: rtl8192u: rewrite NULL comparison for pointers When testing pointers, it is not necessary to explicitly compare to NULL. Rewrite if condition as (!ptr) or (ptr) as suggested in Documentation/CodingStyle Signed-off-by: Nicholas Sim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 9b319b3..dba52741 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -1994,7 +1994,7 @@ static int rtl8192_qos_association_resp(struct r8192_priv *priv, u32 size = sizeof(struct ieee80211_qos_parameters); int set_qos_param = 0; - if ((priv == NULL) || (network == NULL)) + if (!priv || !network) return 0; if (priv->ieee80211->state != IEEE80211_LINKED) @@ -4938,7 +4938,7 @@ static int rtl8192_usb_probe(struct usb_interface *intf, RT_TRACE(COMP_INIT, "Oops: i'm coming\n"); dev = alloc_ieee80211(sizeof(struct r8192_priv)); - if (dev == NULL) + if (!dev) return -ENOMEM; usb_set_intfdata(intf, dev); @@ -5157,7 +5157,7 @@ void setKey(struct net_device *dev, u8 EntryNo, u8 KeyIndex, u16 KeyType, write_nic_dword(dev, RWCAM, TargetCommand); } else { /* Key Material */ - if (KeyContent != NULL) { + if (KeyContent) { write_nic_dword(dev, WCAMI, (u32)(*(KeyContent + i - 2))); write_nic_dword(dev, RWCAM, TargetCommand); } -- cgit v0.10.2 From c3f463484bdd0acd15abd5f92399041f79592d06 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 21 Apr 2016 00:19:25 +0100 Subject: staging: rtl8192u: Fix crash due to pointers being "confusing" There's no net_device stashed in skb->cb, there's a net_device * there. To make it *really* clear, also change the write of the dev pointer into skb->cb from a memcpy() to an assignment. Fixes: 3fe563249374 ("staging: rtl8192u: r8192U_core.c: Cleaning up ...") Signed-off-by: Ben Hutchings Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index dba52741..0a83e2d 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -1043,7 +1043,7 @@ static void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev, spin_lock_irqsave(&priv->tx_lock, flags); - memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev)); + *(struct net_device **)(skb->cb) = dev; tcb_desc->bTxEnableFwCalcDur = 1; skb_push(skb, priv->ieee80211->tx_headroom); ret = rtl8192_tx(dev, skb); @@ -1093,7 +1093,7 @@ static void rtl8192_tx_isr(struct urb *tx_urb) if (!skb) return; - dev = (struct net_device *)(skb->cb); + dev = *(struct net_device **)(skb->cb); tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); queue_index = tcb_desc->queue_index; -- cgit v0.10.2 From 6ffdc7b95474d572f67b0c198cd7a08d8f5e5ff6 Mon Sep 17 00:00:00 2001 From: Cihangir Akturk Date: Sat, 9 Apr 2016 21:45:18 +0300 Subject: staging: fsl-mc: get rid of mutex_locked variables Remove mutex_locked variables which are used to determine whether mutex is locked, instead add another label to unlock mutex on premature exits due to an error. This patch also addresses the folowing warnings reported by coccinelle: drivers/staging/fsl-mc/bus/mc-allocator.c:237:1-7: preceding lock on line 204 drivers/staging/fsl-mc/bus/mc-allocator.c:89:1-7: preceding lock on line 57 drivers/staging/fsl-mc/bus/mc-allocator.c:157:1-7: preceding lock on line 124 Signed-off-by: Cihangir Akturk Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/mc-allocator.c b/drivers/staging/fsl-mc/bus/mc-allocator.c index 86f8543..bdb4b0e 100644 --- a/drivers/staging/fsl-mc/bus/mc-allocator.c +++ b/drivers/staging/fsl-mc/bus/mc-allocator.c @@ -39,7 +39,6 @@ static int __must_check fsl_mc_resource_pool_add_device(struct fsl_mc_bus struct fsl_mc_resource *resource; struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev; int error = -EINVAL; - bool mutex_locked = false; if (WARN_ON(pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES)) goto out; @@ -55,13 +54,12 @@ static int __must_check fsl_mc_resource_pool_add_device(struct fsl_mc_bus goto out; mutex_lock(&res_pool->mutex); - mutex_locked = true; if (WARN_ON(res_pool->max_count < 0)) - goto out; + goto out_unlock; if (WARN_ON(res_pool->free_count < 0 || res_pool->free_count > res_pool->max_count)) - goto out; + goto out_unlock; resource = devm_kzalloc(&mc_bus_dev->dev, sizeof(*resource), GFP_KERNEL); @@ -69,7 +67,7 @@ static int __must_check fsl_mc_resource_pool_add_device(struct fsl_mc_bus error = -ENOMEM; dev_err(&mc_bus_dev->dev, "Failed to allocate memory for fsl_mc_resource\n"); - goto out; + goto out_unlock; } resource->type = pool_type; @@ -82,10 +80,9 @@ static int __must_check fsl_mc_resource_pool_add_device(struct fsl_mc_bus res_pool->free_count++; res_pool->max_count++; error = 0; +out_unlock: + mutex_unlock(&res_pool->mutex); out: - if (mutex_locked) - mutex_unlock(&res_pool->mutex); - return error; } @@ -106,7 +103,6 @@ static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device struct fsl_mc_resource_pool *res_pool; struct fsl_mc_resource *resource; int error = -EINVAL; - bool mutex_locked = false; if (WARN_ON(!FSL_MC_IS_ALLOCATABLE(mc_dev->obj_desc.type))) goto out; @@ -122,13 +118,12 @@ static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device goto out; mutex_lock(&res_pool->mutex); - mutex_locked = true; if (WARN_ON(res_pool->max_count <= 0)) - goto out; + goto out_unlock; if (WARN_ON(res_pool->free_count <= 0 || res_pool->free_count > res_pool->max_count)) - goto out; + goto out_unlock; /* * If the device is currently allocated, its resource is not @@ -139,7 +134,7 @@ static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device dev_err(&mc_bus_dev->dev, "Device %s cannot be removed from resource pool\n", dev_name(&mc_dev->dev)); - goto out; + goto out_unlock; } list_del(&resource->node); @@ -150,10 +145,9 @@ static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device devm_kfree(&mc_bus_dev->dev, resource); mc_dev->resource = NULL; error = 0; +out_unlock: + mutex_unlock(&res_pool->mutex); out: - if (mutex_locked) - mutex_unlock(&res_pool->mutex); - return error; } @@ -188,21 +182,19 @@ int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus, struct fsl_mc_resource *resource; struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev; int error = -EINVAL; - bool mutex_locked = false; BUILD_BUG_ON(ARRAY_SIZE(fsl_mc_pool_type_strings) != FSL_MC_NUM_POOL_TYPES); *new_resource = NULL; if (WARN_ON(pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES)) - goto error; + goto out; res_pool = &mc_bus->resource_pools[pool_type]; if (WARN_ON(res_pool->mc_bus != mc_bus)) - goto error; + goto out; mutex_lock(&res_pool->mutex); - mutex_locked = true; resource = list_first_entry_or_null(&res_pool->free_list, struct fsl_mc_resource, node); @@ -212,28 +204,26 @@ int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus, dev_err(&mc_bus_dev->dev, "No more resources of type %s left\n", fsl_mc_pool_type_strings[pool_type]); - goto error; + goto out_unlock; } if (WARN_ON(resource->type != pool_type)) - goto error; + goto out_unlock; if (WARN_ON(resource->parent_pool != res_pool)) - goto error; + goto out_unlock; if (WARN_ON(res_pool->free_count <= 0 || res_pool->free_count > res_pool->max_count)) - goto error; + goto out_unlock; list_del(&resource->node); INIT_LIST_HEAD(&resource->node); res_pool->free_count--; + error = 0; +out_unlock: mutex_unlock(&res_pool->mutex); *new_resource = resource; - return 0; -error: - if (mutex_locked) - mutex_unlock(&res_pool->mutex); - +out: return error; } EXPORT_SYMBOL_GPL(fsl_mc_resource_allocate); @@ -241,26 +231,23 @@ EXPORT_SYMBOL_GPL(fsl_mc_resource_allocate); void fsl_mc_resource_free(struct fsl_mc_resource *resource) { struct fsl_mc_resource_pool *res_pool; - bool mutex_locked = false; res_pool = resource->parent_pool; if (WARN_ON(resource->type != res_pool->type)) - goto out; + return; mutex_lock(&res_pool->mutex); - mutex_locked = true; if (WARN_ON(res_pool->free_count < 0 || res_pool->free_count >= res_pool->max_count)) - goto out; + goto out_unlock; if (WARN_ON(!list_empty(&resource->node))) - goto out; + goto out_unlock; list_add_tail(&resource->node, &res_pool->free_list); res_pool->free_count++; -out: - if (mutex_locked) - mutex_unlock(&res_pool->mutex); +out_unlock: + mutex_unlock(&res_pool->mutex); } EXPORT_SYMBOL_GPL(fsl_mc_resource_free); -- cgit v0.10.2 From ae25d43c5910ab58bfc6e66a6e9a90d853c5b1cf Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 8 Apr 2016 16:02:35 +0300 Subject: staging: lowmemorykiller: remove bogus NULL check The NULL checking here doesn't make sense, so it causes a static checker warning. It turns out that p->mm can't be NULL so the inconsistency is harmless and we should just remove the check. Signed-off-by: Dan Carpenter Acked-by: Tetsuo Handa Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c index c79f224..24d2745 100644 --- a/drivers/staging/android/lowmemorykiller.c +++ b/drivers/staging/android/lowmemorykiller.c @@ -131,7 +131,7 @@ static unsigned long lowmem_scan(struct shrinker *s, struct shrink_control *sc) if (!p) continue; - if (task_lmk_waiting(p) && p->mm && + if (task_lmk_waiting(p) && time_before_eq(jiffies, lowmem_deathpending_timeout)) { task_unlock(p); rcu_read_unlock(); -- cgit v0.10.2 From 649b55b4260fa84f362f6143f6ae0508eb355ff9 Mon Sep 17 00:00:00 2001 From: Nicholas Sim Date: Tue, 5 Apr 2016 17:47:35 +0100 Subject: staging: rts5208: ensure braces on all arms of if stmt Added braces on if arm of if statement where else arm already needs braces as suggested for clarity in Documentation/CodingStyle (several) Signed-off-by: Nicholas Sim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rts5208/sd.c b/drivers/staging/rts5208/sd.c index 87d6976..6219e04 100644 --- a/drivers/staging/rts5208/sd.c +++ b/drivers/staging/rts5208/sd.c @@ -1928,9 +1928,9 @@ static int sd_tuning_rx(struct rtsx_chip *chip) tuning_cmd = sd_sdr_tuning_rx_cmd; } else { - if (CHK_MMC_DDR52(sd_card)) + if (CHK_MMC_DDR52(sd_card)) { tuning_cmd = mmc_ddr_tunning_rx_cmd; - else { + } else { rtsx_trace(chip); return STATUS_FAIL; } @@ -2054,9 +2054,9 @@ static int sd_tuning_tx(struct rtsx_chip *chip) tuning_cmd = sd_sdr_tuning_tx_cmd; } else { - if (CHK_MMC_DDR52(sd_card)) + if (CHK_MMC_DDR52(sd_card)) { tuning_cmd = sd_ddr_tuning_tx_cmd; - else { + } else { rtsx_trace(chip); return STATUS_FAIL; } @@ -2678,9 +2678,9 @@ RTY_SD_RST: } j++; - if (j < 3) + if (j < 3) { goto RTY_SD_RST; - else { + } else { rtsx_trace(chip); return STATUS_FAIL; } @@ -2690,9 +2690,9 @@ RTY_SD_RST: SD_RSP_TYPE_R3, rsp, 5); if (retval != STATUS_SUCCESS) { k++; - if (k < 3) + if (k < 3) { goto RTY_SD_RST; - else { + } else { rtsx_trace(chip); return STATUS_FAIL; } -- cgit v0.10.2 From e0ab2c8ef52cdfc69cabd6aa2140a28c1f404f99 Mon Sep 17 00:00:00 2001 From: Manav Batra Date: Wed, 6 Apr 2016 20:22:52 -0700 Subject: staging: rts5208: alignment to match open paranthesis Fixes CHECK: Alignment should match open parenthesis Signed-off-by: Manav Batra Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rts5208/ms.c b/drivers/staging/rts5208/ms.c index 3e75db7..0f0cd4a 100644 --- a/drivers/staging/rts5208/ms.c +++ b/drivers/staging/rts5208/ms.c @@ -49,7 +49,7 @@ static int ms_parse_err_code(struct rtsx_chip *chip) } static int ms_transfer_tpc(struct rtsx_chip *chip, u8 trans_mode, - u8 tpc, u8 cnt, u8 cfg) + u8 tpc, u8 cnt, u8 cfg) { struct ms_info *ms_card = &chip->ms_card; int retval; -- cgit v0.10.2 From f2fe1bc90016966ca2423e2bd84e37c753b852e6 Mon Sep 17 00:00:00 2001 From: Clifton Barnes Date: Tue, 5 Apr 2016 17:37:37 -0400 Subject: staging: slicoss: fix bare use of 'unsigned' fix checkpatch.pl warning about 'Prefer 'unsigned int' to bare use of 'unsigned'' Signed-off-by: Clifton Barnes Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c index fa61e8e..cb1ad76 100644 --- a/drivers/staging/slicoss/slicoss.c +++ b/drivers/staging/slicoss/slicoss.c @@ -1144,7 +1144,7 @@ static int slic_config_get(struct adapter *adapter, u32 config, u32 config_h) /* * Compute a checksum of the EEPROM according to RFC 1071. */ -static u16 slic_eeprom_cksum(void *eeprom, unsigned len) +static u16 slic_eeprom_cksum(void *eeprom, unsigned int len) { u16 *wp = eeprom; u32 checksum = 0; -- cgit v0.10.2 From d37912dd298eb7d2c3c85daeb605066236c8ac4b Mon Sep 17 00:00:00 2001 From: Clifton Barnes Date: Tue, 5 Apr 2016 17:37:38 -0400 Subject: staging: slicoss: fix missing blank line fix checkpatch.pl warning about 'Missing a blank line after declarations' Signed-off-by: Clifton Barnes Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c index cb1ad76..ac126d4 100644 --- a/drivers/staging/slicoss/slicoss.c +++ b/drivers/staging/slicoss/slicoss.c @@ -898,6 +898,7 @@ static void slic_upr_start(struct adapter *adapter) { struct slic_upr *upr; __iomem struct slic_regs *slic_regs = adapter->slic_regs; + upr = adapter->upr_list; if (!upr) return; -- cgit v0.10.2 From 5678824069d599f8cc3fed8b0dadce0f670fabc3 Mon Sep 17 00:00:00 2001 From: han tai Date: Wed, 20 Apr 2016 07:23:03 +0000 Subject: staging: vt6656: Add space to align functions Issue found by checkpatch.pl CHECK: Alignment should match open parenthesis Signed-off-by: han tai Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c index 9417c93..882fe54 100644 --- a/drivers/staging/vt6656/baseband.c +++ b/drivers/staging/vt6656/baseband.c @@ -138,7 +138,7 @@ static const u16 vnt_frame_time[MAX_RATE] = { * */ unsigned int vnt_get_frame_time(u8 preamble_type, u8 pkt_type, - unsigned int frame_length, u16 tx_rate) + unsigned int frame_length, u16 tx_rate) { unsigned int frame_time; unsigned int preamble; @@ -195,7 +195,7 @@ unsigned int vnt_get_frame_time(u8 preamble_type, u8 pkt_type, * */ void vnt_get_phy_field(struct vnt_private *priv, u32 frame_length, - u16 tx_rate, u8 pkt_type, struct vnt_phy_field *phy) + u16 tx_rate, u8 pkt_type, struct vnt_phy_field *phy) { u32 bit_count; u32 count = 0; @@ -355,7 +355,7 @@ void vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode) } vnt_control_out(priv, MESSAGE_TYPE_SET_ANTMD, - (u16)antenna_mode, 0, 0, NULL); + (u16)antenna_mode, 0, 0, NULL); } /* @@ -383,7 +383,7 @@ int vnt_vt3184_init(struct vnt_private *priv) u8 data; status = vnt_control_in(priv, MESSAGE_TYPE_READ, 0, - MESSAGE_REQUEST_EEPROM, EEP_MAX_CONTEXT_SIZE, + MESSAGE_REQUEST_EEPROM, EEP_MAX_CONTEXT_SIZE, priv->eeprom); if (status != STATUS_SUCCESS) return false; @@ -393,7 +393,7 @@ int vnt_vt3184_init(struct vnt_private *priv) dev_dbg(&priv->usb->dev, "RF Type %d\n", priv->rf_type); if ((priv->rf_type == RF_AL2230) || - (priv->rf_type == RF_AL2230S)) { + (priv->rf_type == RF_AL2230S)) { priv->bb_rx_conf = vnt_vt3184_al2230[10]; length = sizeof(vnt_vt3184_al2230); addr = vnt_vt3184_al2230; @@ -457,21 +457,21 @@ int vnt_vt3184_init(struct vnt_private *priv) memcpy(array, addr, length); vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0, - MESSAGE_REQUEST_BBREG, length, array); + MESSAGE_REQUEST_BBREG, length, array); memcpy(array, agc, length_agc); vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0, - MESSAGE_REQUEST_BBAGC, length_agc, array); + MESSAGE_REQUEST_BBAGC, length_agc, array); if ((priv->rf_type == RF_VT3226) || - (priv->rf_type == RF_VT3342A0)) { + (priv->rf_type == RF_VT3342A0)) { vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, - MAC_REG_ITRTMSET, 0x23); + MAC_REG_ITRTMSET, 0x23); vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, 0x01); } else if (priv->rf_type == RF_VT3226D0) { vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, - MAC_REG_ITRTMSET, 0x11); + MAC_REG_ITRTMSET, 0x11); vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, 0x01); } @@ -482,12 +482,12 @@ int vnt_vt3184_init(struct vnt_private *priv) /* Fix for TX USB resets from vendors driver */ vnt_control_in(priv, MESSAGE_TYPE_READ, USB_REG4, - MESSAGE_REQUEST_MEM, sizeof(data), &data); + MESSAGE_REQUEST_MEM, sizeof(data), &data); data |= 0x2; vnt_control_out(priv, MESSAGE_TYPE_WRITE, USB_REG4, - MESSAGE_REQUEST_MEM, sizeof(data), &data); + MESSAGE_REQUEST_MEM, sizeof(data), &data); return true; } @@ -814,7 +814,7 @@ void vnt_update_pre_ed_threshold(struct vnt_private *priv, int scanning) priv->bb_pre_ed_index = ed_inx; dev_dbg(&priv->usb->dev, "%s bb_pre_ed_rssi %d\n", - __func__, priv->bb_pre_ed_rssi); + __func__, priv->bb_pre_ed_rssi); if (!cr_201 && !cr_206) return; -- cgit v0.10.2 From d6a1b8d9db3a51f72cdd078ffe48ebcc90fcdd24 Mon Sep 17 00:00:00 2001 From: Nikita Eshkeev Date: Tue, 26 Apr 2016 02:15:09 +0300 Subject: staging: board: line over 80 characters This patch fixes the checkpatch.pl warning: WARNING: line over 80 characters + .domain = "/system-controller@e6180000/pm-domains/c5/a4lc@1" Signed-off-by: Nikita Eshkeev Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/board/armadillo800eva.c b/drivers/staging/board/armadillo800eva.c index bb63ece..4de4fd0 100644 --- a/drivers/staging/board/armadillo800eva.c +++ b/drivers/staging/board/armadillo800eva.c @@ -87,10 +87,10 @@ static const struct board_staging_clk lcdc0_clocks[] __initconst = { static const struct board_staging_dev armadillo800eva_devices[] __initconst = { { - .pdev = &lcdc0_device, - .clocks = lcdc0_clocks, - .nclocks = ARRAY_SIZE(lcdc0_clocks), - .domain = "/system-controller@e6180000/pm-domains/c5/a4lc@1" + .pdev = &lcdc0_device, + .clocks = lcdc0_clocks, + .nclocks = ARRAY_SIZE(lcdc0_clocks), + .domain = "/system-controller@e6180000/pm-domains/c5/a4lc@1" }, }; -- cgit v0.10.2 From 71bd14e3ec654442c1fdddf6a54ed94b83436feb Mon Sep 17 00:00:00 2001 From: Stuart Yoder Date: Mon, 11 Apr 2016 11:48:37 -0500 Subject: staging: fsl-mc: TODO updates remove 3 of the remaining TODO items: -multiple root fsl-mc buses-- done in patch series starting with commit 14f928054a05 ("staging: fsl-mc: abstract test for existence of fsl-mc bus") -interrupt support-- done in patch series starting with commit 9b1b282ccd81 ("irqdomain: Added domain bus token DOMAIN_BUS_FSL_MC_MSI") -MC command serialization-- done in commit 63f2be5c3b358 ("staging: fsl-mc: Added serialization to mc_send_command()") Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/TODO b/drivers/staging/fsl-mc/TODO index 3894368..54a8bc6 100644 --- a/drivers/staging/fsl-mc/TODO +++ b/drivers/staging/fsl-mc/TODO @@ -1,21 +1,8 @@ -* Decide if multiple root fsl-mc buses will be supported per Linux instance, - and if so add support for this. - * Add at least one device driver for a DPAA2 object (child device of the fsl-mc bus). Most likely candidate for this is adding DPAA2 Ethernet driver support, which depends on drivers for several objects: DPNI, DPIO, DPMAC. Other pre-requisites include: - * interrupt support. for meaningful driver support we need - interrupts, and thus need message interrupt support by the bus - driver. - -Note: this has dependencies on generic MSI support work - in process upstream, see [1] and [2]. - - * Management Complex (MC) command serialization. locking mechanisms - are needed by drivers to serialize commands sent to the MC, including - from atomic context. - * MC firmware uprev. The MC firmware upon which the fsl-mc bus driver and DPAA2 object drivers are based is continuing to evolve, so minor updates are needed to keep in sync with binary -- cgit v0.10.2 From 7dc0818367418e7fa9085ebdddc435f6b1ca4941 Mon Sep 17 00:00:00 2001 From: Stuart Yoder Date: Mon, 11 Apr 2016 11:48:42 -0500 Subject: staging: fsl-mc: DPAA2 overview readme update incorporated feedback from review comments, other misc cleanup/tweaks Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/README.txt b/drivers/staging/fsl-mc/README.txt index 8214102..179536a 100644 --- a/drivers/staging/fsl-mc/README.txt +++ b/drivers/staging/fsl-mc/README.txt @@ -11,11 +11,11 @@ Contents summary -Overview of DPAA2 objects -DPAA2 Linux driver architecture overview -bus driver - -dprc driver + -DPRC driver -allocator - -dpio driver + -DPIO driver -Ethernet - -mac + -MAC DPAA2 Overview -------------- @@ -37,6 +37,9 @@ interfaces, an L2 switch, or accelerator instances. The MC provides memory-mapped I/O command interfaces (MC portals) which DPAA2 software drivers use to operate on DPAA2 objects: +The diagram below shows an overview of the DPAA2 resource management +architecture: + +--------------------------------------+ | OS | | DPAA2 drivers | @@ -77,13 +80,13 @@ DPIO objects. Overview of DPAA2 Objects ------------------------- -The section provides a brief overview of some key objects -in the DPAA2 hardware. A simple scenario is described illustrating -the objects involved in creating a network interfaces. +The section provides a brief overview of some key DPAA2 objects. +A simple scenario is described illustrating the objects involved +in creating a network interfaces. -DPRC (Datapath Resource Container) - A DPRC is an container object that holds all the other + A DPRC is a container object that holds all the other types of DPAA2 objects. In the example diagram below there are 8 objects of 5 types (DPMCP, DPIO, DPBP, DPNI, and DPMAC) in the container. @@ -101,23 +104,23 @@ the objects involved in creating a network interfaces. | | +---------------------------------------------------------+ - From the point of view of an OS, a DPRC is bus-like. Like - a plug-and-play bus, such as PCI, DPRC commands can be used to - enumerate the contents of the DPRC, discover the hardware - objects present (including mappable regions and interrupts). + From the point of view of an OS, a DPRC behaves similar to a plug and + play bus, like PCI. DPRC commands can be used to enumerate the contents + of the DPRC, discover the hardware objects present (including mappable + regions and interrupts). - dprc.1 (bus) + DPRC.1 (bus) | +--+--------+-------+-------+-------+ | | | | | - dpmcp.1 dpio.1 dpbp.1 dpni.1 dpmac.1 - dpmcp.2 dpio.2 - dpmcp.3 + DPMCP.1 DPIO.1 DPBP.1 DPNI.1 DPMAC.1 + DPMCP.2 DPIO.2 + DPMCP.3 Hardware objects can be created and destroyed dynamically, providing the ability to hot plug/unplug objects in and out of the DPRC. - A DPRC has a mappable mmio region (an MC portal) that can be used + A DPRC has a mappable MMIO region (an MC portal) that can be used to send MC commands. It has an interrupt for status events (like hotplug). @@ -137,10 +140,11 @@ the objects involved in creating a network interfaces. A typical Ethernet NIC is monolithic-- the NIC device contains TX/RX queuing mechanisms, configuration mechanisms, buffer management, physical ports, and interrupts. DPAA2 uses a more granular approach - utilizing multiple hardware objects. Each object has specialized - functions, and are used together by software to provide Ethernet network - interface functionality. This approach provides efficient use of finite - hardware resources, flexibility, and performance advantages. + utilizing multiple hardware objects. Each object provides specialized + functions. Groups of these objects are used by software to provide + Ethernet network interface functionality. This approach provides + efficient use of finite hardware resources, flexibility, and + performance advantages. The diagram below shows the objects needed for a simple network interface configuration on a system with 2 CPUs. @@ -168,46 +172,52 @@ the objects involved in creating a network interfaces. Below the objects are described. For each object a brief description is provided along with a summary of the kinds of operations the object - supports and a summary of key resources of the object (mmio regions - and irqs). + supports and a summary of key resources of the object (MMIO regions + and IRQs). -DPMAC (Datapath Ethernet MAC): represents an Ethernet MAC, a hardware device that connects to an Ethernet PHY and allows physical transmission and reception of Ethernet frames. - -mmio regions: none - -irqs: dpni link change + -MMIO regions: none + -IRQs: DPNI link change -commands: set link up/down, link config, get stats, - irq config, enable, reset + IRQ config, enable, reset -DPNI (Datapath Network Interface): contains TX/RX queues, - network interface configuration, and rx buffer pool configuration - mechanisms. - -mmio regions: none - -irqs: link state + network interface configuration, and RX buffer pool configuration + mechanisms. The TX/RX queues are in memory and are identified by + queue number. + -MMIO regions: none + -IRQs: link state -commands: port config, offload config, queue config, - parse/classify config, irq config, enable, reset + parse/classify config, IRQ config, enable, reset -DPIO (Datapath I/O): provides interfaces to enqueue and dequeue - packets and do hardware buffer pool management operations. For - optimum performance there is typically DPIO per CPU. This allows - each CPU to perform simultaneous enqueue/dequeue operations. - -mmio regions: queue operations, buffer mgmt - -irqs: data availability, congestion notification, buffer + packets and do hardware buffer pool management operations. The DPAA2 + architecture separates the mechanism to access queues (the DPIO object) + from the queues themselves. The DPIO provides an MMIO interface to + enqueue/dequeue packets. To enqueue something a descriptor is written + to the DPIO MMIO region, which includes the target queue number. + There will typically be one DPIO assigned to each CPU. This allows all + CPUs to simultaneously perform enqueue/dequeued operations. DPIOs are + expected to be shared by different DPAA2 drivers. + -MMIO regions: queue operations, buffer management + -IRQs: data availability, congestion notification, buffer pool depletion - -commands: irq config, enable, reset + -commands: IRQ config, enable, reset -DPBP (Datapath Buffer Pool): represents a hardware buffer pool. - -mmio regions: none - -irqs: none + -MMIO regions: none + -IRQs: none -commands: enable, reset -DPMCP (Datapath MC Portal): provides an MC command portal. Used by drivers to send commands to the MC to manage objects. - -mmio regions: MC command portal - -irqs: command completion - -commands: irq config, enable, reset + -MMIO regions: MC command portal + -IRQs: command completion + -commands: IRQ config, enable, reset Object Connections ------------------ @@ -268,22 +278,22 @@ of each driver follows. | Stack | +------------+ +------------+ | Allocator |. . . . . . . | Ethernet | - |(dpmcp,dpbp)| | (dpni) | + |(DPMCP,DPBP)| | (DPNI) | +-.----------+ +---+---+----+ . . ^ | . . | | dequeue> +-------------+ . | | | DPRC driver | . +---+---V----+ +---------+ - | (dprc) | . . . . . .| DPIO driver| | MAC | - +----------+--+ | (dpio) | | (dpmac) | + | (DPRC) | . . . . . .| DPIO driver| | MAC | + +----------+--+ | (DPIO) | | (DPMAC) | | +------+-----+ +-----+---+ | | | | | | +----+--------------+ | +--+---+ - | mc-bus driver | | | PHY | + | MC-bus driver | | | PHY | | | | |driver| - | /fsl-mc@80c000000 | | +--+---+ + | /soc/fsl-mc | | +--+---+ +-------------------+ | | | | ================================ HARDWARE =========|=================|====== @@ -298,25 +308,27 @@ of each driver follows. A brief description of each driver is provided below. - mc-bus driver + MC-bus driver ------------- - The mc-bus driver is a platform driver and is probed from an - "/fsl-mc@xxxx" node in the device tree passed in by boot firmware. - It is responsible for bootstrapping the DPAA2 kernel infrastructure. + The MC-bus driver is a platform driver and is probed from a + node in the device tree (compatible "fsl,qoriq-mc") passed in by boot + firmware. It is responsible for bootstrapping the DPAA2 kernel + infrastructure. Key functions include: -registering a new bus type named "fsl-mc" with the kernel, and implementing bus call-backs (e.g. match/uevent/dev_groups) - -implemeting APIs for DPAA2 driver registration and for device + -implementing APIs for DPAA2 driver registration and for device add/remove - -creates an MSI irq domain - -do a device add of the 'root' DPRC device, which is needed - to bootstrap things + -creates an MSI IRQ domain + -doing a 'device add' to expose the 'root' DPRC, in turn triggering + a bind of the root DPRC to the DPRC driver DPRC driver ----------- - The dprc-driver is bound DPRC objects and does runtime management + The DPRC driver is bound to DPRC objects and does runtime management of a bus instance. It performs the initial bus scan of the DPRC - and handles interrupts for container events such as hot plug. + and handles interrupts for container events such as hot plug by + re-scanning the DPRC. Allocator ---------- @@ -334,14 +346,20 @@ A brief description of each driver is provided below. DPIO driver ----------- The DPIO driver is bound to DPIO objects and provides services that allow - other drivers such as the Ethernet driver to receive and transmit data. + other drivers such as the Ethernet driver to enqueue and dequeue data for + their respective objects. Key services include: -data availability notifications -hardware queuing operations (enqueue and dequeue of data) -hardware buffer pool management + To transmit a packet the Ethernet driver puts data on a queue and + invokes a DPIO API. For receive, the Ethernet driver registers + a data availability notification callback. To dequeue a packet + a DPIO API is used. + There is typically one DPIO object per physical CPU for optimum - performance, allowing each CPU to simultaneously enqueue + performance, allowing different CPUs to simultaneously enqueue and dequeue data. The DPIO driver operates on behalf of all DPAA2 drivers @@ -362,3 +380,7 @@ A brief description of each driver is provided below. by the appropriate PHY driver via an mdio bus. The MAC driver plays a role of being a proxy between the PHY driver and the MC. It does this proxy via the MC commands to a DPMAC object. + If the PHY driver signals a link change, the MAC driver notifies + the MC via a DPMAC command. If a network interface is brought + up or down, the MC notifies the DPMAC driver via an interrupt and + the driver can take appropriate action. -- cgit v0.10.2 From f8274454bcdac834baf2afe9b5543e088c029a73 Mon Sep 17 00:00:00 2001 From: Stuart Yoder Date: Mon, 11 Apr 2016 11:48:48 -0500 Subject: staging: fsl-mc: update dpmcp binary interface to v3.0 Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h index a87e9f8..c6f4ec0 100644 --- a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h +++ b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h @@ -33,8 +33,8 @@ #define _FSL_DPMCP_CMD_H /* DPMCP Version */ -#define DPMCP_VER_MAJOR 2 -#define DPMCP_VER_MINOR 1 +#define DPMCP_VER_MAJOR 3 +#define DPMCP_VER_MINOR 0 /* Command IDs */ #define DPMCP_CMDID_CLOSE 0x800 @@ -52,6 +52,5 @@ #define DPMCP_CMDID_SET_IRQ_MASK 0x014 #define DPMCP_CMDID_GET_IRQ_MASK 0x015 #define DPMCP_CMDID_GET_IRQ_STATUS 0x016 -#define DPMCP_CMDID_CLEAR_IRQ_STATUS 0x017 #endif /* _FSL_DPMCP_CMD_H */ diff --git a/drivers/staging/fsl-mc/bus/dpmcp.c b/drivers/staging/fsl-mc/bus/dpmcp.c index b0248f5..fd6dd4e 100644 --- a/drivers/staging/fsl-mc/bus/dpmcp.c +++ b/drivers/staging/fsl-mc/bus/dpmcp.c @@ -213,7 +213,7 @@ int dpmcp_set_irq(struct fsl_mc_io *mc_io, cmd.params[0] |= mc_enc(0, 8, irq_index); cmd.params[0] |= mc_enc(32, 32, irq_cfg->val); cmd.params[1] |= mc_enc(0, 64, irq_cfg->paddr); - cmd.params[2] |= mc_enc(0, 32, irq_cfg->user_irq_id); + cmd.params[2] |= mc_enc(0, 32, irq_cfg->irq_num); /* send command to mc*/ return mc_send_command(mc_io, &cmd); @@ -254,7 +254,7 @@ int dpmcp_get_irq(struct fsl_mc_io *mc_io, /* retrieve response parameters */ irq_cfg->val = (u32)mc_dec(cmd.params[0], 0, 32); irq_cfg->paddr = (u64)mc_dec(cmd.params[1], 0, 64); - irq_cfg->user_irq_id = (int)mc_dec(cmd.params[2], 0, 32); + irq_cfg->irq_num = (int)mc_dec(cmd.params[2], 0, 32); *type = (int)mc_dec(cmd.params[2], 32, 32); return 0; } @@ -435,37 +435,6 @@ int dpmcp_get_irq_status(struct fsl_mc_io *mc_io, } /** - * dpmcp_clear_irq_status() - Clear a pending interrupt's status - * - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPMCP object - * @irq_index: The interrupt index to configure - * @status: Bits to clear (W1C) - one bit per cause: - * 0 = don't change - * 1 = clear status bit - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmcp_clear_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 status) -{ - struct mc_command cmd = { 0 }; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLEAR_IRQ_STATUS, - cmd_flags, token); - cmd.params[0] |= mc_enc(0, 32, status); - cmd.params[0] |= mc_enc(32, 8, irq_index); - - /* send command to mc*/ - return mc_send_command(mc_io, &cmd); -} - -/** * dpmcp_get_attributes - Retrieve DPMCP attributes. * * @mc_io: Pointer to MC portal's I/O object diff --git a/drivers/staging/fsl-mc/bus/dpmcp.h b/drivers/staging/fsl-mc/bus/dpmcp.h index 6df351f..fe79d4d 100644 --- a/drivers/staging/fsl-mc/bus/dpmcp.h +++ b/drivers/staging/fsl-mc/bus/dpmcp.h @@ -82,12 +82,12 @@ int dpmcp_reset(struct fsl_mc_io *mc_io, * struct dpmcp_irq_cfg - IRQ configuration * @paddr: Address that must be written to signal a message-based interrupt * @val: Value to write into irq_addr address - * @user_irq_id: A user defined number associated with this IRQ + * @irq_num: A user defined number associated with this IRQ */ struct dpmcp_irq_cfg { uint64_t paddr; uint32_t val; - int user_irq_id; + int irq_num; }; int dpmcp_set_irq(struct fsl_mc_io *mc_io, @@ -133,12 +133,6 @@ int dpmcp_get_irq_status(struct fsl_mc_io *mc_io, uint8_t irq_index, uint32_t *status); -int dpmcp_clear_irq_status(struct fsl_mc_io *mc_io, - uint32_t cmd_flags, - uint16_t token, - uint8_t irq_index, - uint32_t status); - /** * struct dpmcp_attr - Structure representing DPMCP attributes * @id: DPMCP object ID -- cgit v0.10.2 From 6606c073a5695ef566bea3b0f3af979395a64e17 Mon Sep 17 00:00:00 2001 From: Stuart Yoder Date: Mon, 11 Apr 2016 11:48:54 -0500 Subject: staging: fsl-mc: update dpbp binary interface to v2.2 Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/dpbp.c b/drivers/staging/fsl-mc/bus/dpbp.c index 2d97173..c31fe1b 100644 --- a/drivers/staging/fsl-mc/bus/dpbp.c +++ b/drivers/staging/fsl-mc/bus/dpbp.c @@ -293,7 +293,7 @@ int dpbp_set_irq(struct fsl_mc_io *mc_io, cmd.params[0] |= mc_enc(0, 8, irq_index); cmd.params[0] |= mc_enc(32, 32, irq_cfg->val); cmd.params[1] |= mc_enc(0, 64, irq_cfg->addr); - cmd.params[2] |= mc_enc(0, 32, irq_cfg->user_irq_id); + cmd.params[2] |= mc_enc(0, 32, irq_cfg->irq_num); /* send command to mc*/ return mc_send_command(mc_io, &cmd); @@ -334,7 +334,7 @@ int dpbp_get_irq(struct fsl_mc_io *mc_io, /* retrieve response parameters */ irq_cfg->val = (u32)mc_dec(cmd.params[0], 0, 32); irq_cfg->addr = (u64)mc_dec(cmd.params[1], 0, 64); - irq_cfg->user_irq_id = (int)mc_dec(cmd.params[2], 0, 32); + irq_cfg->irq_num = (int)mc_dec(cmd.params[2], 0, 32); *type = (int)mc_dec(cmd.params[2], 32, 32); return 0; } @@ -502,6 +502,7 @@ int dpbp_get_irq_status(struct fsl_mc_io *mc_io, /* prepare command */ cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_STATUS, cmd_flags, token); + cmd.params[0] |= mc_enc(0, 32, *status); cmd.params[0] |= mc_enc(32, 8, irq_index); /* send command to mc*/ @@ -580,3 +581,75 @@ int dpbp_get_attributes(struct fsl_mc_io *mc_io, return 0; } EXPORT_SYMBOL(dpbp_get_attributes); + +/** + * dpbp_set_notifications() - Set notifications towards software + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPBP object + * @cfg: notifications configuration + * + * Return: '0' on Success; Error code otherwise. + */ +int dpbp_set_notifications(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpbp_notification_cfg *cfg) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_NOTIFICATIONS, + cmd_flags, + token); + + cmd.params[0] |= mc_enc(0, 32, cfg->depletion_entry); + cmd.params[0] |= mc_enc(32, 32, cfg->depletion_exit); + cmd.params[1] |= mc_enc(0, 32, cfg->surplus_entry); + cmd.params[1] |= mc_enc(32, 32, cfg->surplus_exit); + cmd.params[2] |= mc_enc(0, 16, cfg->options); + cmd.params[3] |= mc_enc(0, 64, cfg->message_ctx); + cmd.params[4] |= mc_enc(0, 64, cfg->message_iova); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpbp_get_notifications() - Get the notifications configuration + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPBP object + * @cfg: notifications configuration + * + * Return: '0' on Success; Error code otherwise. + */ +int dpbp_get_notifications(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpbp_notification_cfg *cfg) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_NOTIFICATIONS, + cmd_flags, + token); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + cfg->depletion_entry = (u32)mc_dec(cmd.params[0], 0, 32); + cfg->depletion_exit = (u32)mc_dec(cmd.params[0], 32, 32); + cfg->surplus_entry = (u32)mc_dec(cmd.params[1], 0, 32); + cfg->surplus_exit = (u32)mc_dec(cmd.params[1], 32, 32); + cfg->options = (u16)mc_dec(cmd.params[2], 0, 16); + cfg->message_ctx = (u64)mc_dec(cmd.params[3], 0, 64); + cfg->message_iova = (u64)mc_dec(cmd.params[4], 0, 64); + + return 0; +} diff --git a/drivers/staging/fsl-mc/include/dpbp-cmd.h b/drivers/staging/fsl-mc/include/dpbp-cmd.h index efa9bf3..c57b454 100644 --- a/drivers/staging/fsl-mc/include/dpbp-cmd.h +++ b/drivers/staging/fsl-mc/include/dpbp-cmd.h @@ -34,7 +34,7 @@ /* DPBP Version */ #define DPBP_VER_MAJOR 2 -#define DPBP_VER_MINOR 1 +#define DPBP_VER_MINOR 2 /* Command IDs */ #define DPBP_CMDID_CLOSE 0x800 @@ -57,4 +57,6 @@ #define DPBP_CMDID_GET_IRQ_STATUS 0x016 #define DPBP_CMDID_CLEAR_IRQ_STATUS 0x017 +#define DPBP_CMDID_SET_NOTIFICATIONS 0x01b0 +#define DPBP_CMDID_GET_NOTIFICATIONS 0x01b1 #endif /* _FSL_DPBP_CMD_H */ diff --git a/drivers/staging/fsl-mc/include/dpbp.h b/drivers/staging/fsl-mc/include/dpbp.h index 37ed951..e14e85a 100644 --- a/drivers/staging/fsl-mc/include/dpbp.h +++ b/drivers/staging/fsl-mc/include/dpbp.h @@ -85,12 +85,12 @@ int dpbp_reset(struct fsl_mc_io *mc_io, * struct dpbp_irq_cfg - IRQ configuration * @addr: Address that must be written to signal a message-based interrupt * @val: Value to write into irq_addr address - * @user_irq_id: A user defined number associated with this IRQ + * @irq_num: A user defined number associated with this IRQ */ struct dpbp_irq_cfg { u64 addr; u32 val; - int user_irq_id; + int irq_num; }; int dpbp_set_irq(struct fsl_mc_io *mc_io, @@ -168,6 +168,53 @@ int dpbp_get_attributes(struct fsl_mc_io *mc_io, u16 token, struct dpbp_attr *attr); +/** + * DPBP notifications options + */ + +/** + * BPSCN write will attempt to allocate into a cache (coherent write) + */ +#define DPBP_NOTIF_OPT_COHERENT_WRITE 0x00000001 + +/** + * struct dpbp_notification_cfg - Structure representing DPBP notifications + * towards software + * @depletion_entry: below this threshold the pool is "depleted"; + * set it to '0' to disable it + * @depletion_exit: greater than or equal to this threshold the pool exit its + * "depleted" state + * @surplus_entry: above this threshold the pool is in "surplus" state; + * set it to '0' to disable it + * @surplus_exit: less than or equal to this threshold the pool exit its + * "surplus" state + * @message_iova: MUST be given if either 'depletion_entry' or 'surplus_entry' + * is not '0' (enable); I/O virtual address (must be in DMA-able memory), + * must be 16B aligned. + * @message_ctx: The context that will be part of the BPSCN message and will + * be written to 'message_iova' + * @options: Mask of available options; use 'DPBP_NOTIF_OPT_' values + */ +struct dpbp_notification_cfg { + u32 depletion_entry; + u32 depletion_exit; + u32 surplus_entry; + u32 surplus_exit; + u64 message_iova; + u64 message_ctx; + u16 options; +}; + +int dpbp_set_notifications(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpbp_notification_cfg *cfg); + +int dpbp_get_notifications(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpbp_notification_cfg *cfg); + /** @} */ #endif /* __FSL_DPBP_H */ -- cgit v0.10.2 From ac0619981d0e2e2bd9022b035cb8affef1325998 Mon Sep 17 00:00:00 2001 From: Stuart Yoder Date: Mon, 11 Apr 2016 11:48:59 -0500 Subject: staging: fsl-mc: update dprc binary interface to v5.1 The meaning of the "status" parameter in dprc_get_irq_status has changed, and this patch updates the flib and caller of the API. Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/dprc-cmd.h b/drivers/staging/fsl-mc/bus/dprc-cmd.h index 6552c20..d0198f5 100644 --- a/drivers/staging/fsl-mc/bus/dprc-cmd.h +++ b/drivers/staging/fsl-mc/bus/dprc-cmd.h @@ -41,8 +41,8 @@ #define _FSL_DPRC_CMD_H /* DPRC Version */ -#define DPRC_VER_MAJOR 4 -#define DPRC_VER_MINOR 0 +#define DPRC_VER_MAJOR 5 +#define DPRC_VER_MINOR 1 /* Command IDs */ #define DPRC_CMDID_CLOSE 0x800 diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c index 31488a7..4334f3c 100644 --- a/drivers/staging/fsl-mc/bus/dprc-driver.c +++ b/drivers/staging/fsl-mc/bus/dprc-driver.c @@ -423,6 +423,7 @@ static irqreturn_t dprc_irq0_handler_thread(int irq_num, void *arg) if (WARN_ON(!msi_desc || msi_desc->irq != (u32)irq_num)) goto out; + status = 0; error = dprc_get_irq_status(mc_io, 0, mc_dev->mc_handle, 0, &status); if (error < 0) { diff --git a/drivers/staging/fsl-mc/bus/dprc.c b/drivers/staging/fsl-mc/bus/dprc.c index 381b9a9..a2c4737 100644 --- a/drivers/staging/fsl-mc/bus/dprc.c +++ b/drivers/staging/fsl-mc/bus/dprc.c @@ -265,7 +265,7 @@ int dprc_get_irq(struct fsl_mc_io *mc_io, /* retrieve response parameters */ irq_cfg->val = mc_dec(cmd.params[0], 0, 32); irq_cfg->paddr = mc_dec(cmd.params[1], 0, 64); - irq_cfg->user_irq_id = mc_dec(cmd.params[2], 0, 32); + irq_cfg->irq_num = mc_dec(cmd.params[2], 0, 32); *type = mc_dec(cmd.params[2], 32, 32); return 0; @@ -296,7 +296,7 @@ int dprc_set_irq(struct fsl_mc_io *mc_io, cmd.params[0] |= mc_enc(32, 8, irq_index); cmd.params[0] |= mc_enc(0, 32, irq_cfg->val); cmd.params[1] |= mc_enc(0, 64, irq_cfg->paddr); - cmd.params[2] |= mc_enc(0, 32, irq_cfg->user_irq_id); + cmd.params[2] |= mc_enc(0, 32, irq_cfg->irq_num); /* send command to mc*/ return mc_send_command(mc_io, &cmd); @@ -466,6 +466,7 @@ int dprc_get_irq_status(struct fsl_mc_io *mc_io, /* prepare command */ cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_STATUS, cmd_flags, token); + cmd.params[0] |= mc_enc(0, 32, *status); cmd.params[0] |= mc_enc(32, 8, irq_index); /* send command to mc*/ @@ -948,6 +949,7 @@ int dprc_get_obj(struct fsl_mc_io *mc_io, obj_desc->state = mc_dec(cmd.params[1], 32, 32); obj_desc->ver_major = mc_dec(cmd.params[2], 0, 16); obj_desc->ver_minor = mc_dec(cmd.params[2], 16, 16); + obj_desc->flags = mc_dec(cmd.params[2], 32, 16); obj_desc->type[0] = mc_dec(cmd.params[3], 0, 8); obj_desc->type[1] = mc_dec(cmd.params[3], 8, 8); obj_desc->type[2] = mc_dec(cmd.params[3], 16, 8); @@ -1042,6 +1044,7 @@ int dprc_get_obj_desc(struct fsl_mc_io *mc_io, obj_desc->state = (u32)mc_dec(cmd.params[1], 32, 32); obj_desc->ver_major = (u16)mc_dec(cmd.params[2], 0, 16); obj_desc->ver_minor = (u16)mc_dec(cmd.params[2], 16, 16); + obj_desc->flags = mc_dec(cmd.params[2], 32, 16); obj_desc->type[0] = (char)mc_dec(cmd.params[3], 0, 8); obj_desc->type[1] = (char)mc_dec(cmd.params[3], 8, 8); obj_desc->type[2] = (char)mc_dec(cmd.params[3], 16, 8); @@ -1108,7 +1111,7 @@ int dprc_set_obj_irq(struct fsl_mc_io *mc_io, cmd.params[0] |= mc_enc(32, 8, irq_index); cmd.params[0] |= mc_enc(0, 32, irq_cfg->val); cmd.params[1] |= mc_enc(0, 64, irq_cfg->paddr); - cmd.params[2] |= mc_enc(0, 32, irq_cfg->user_irq_id); + cmd.params[2] |= mc_enc(0, 32, irq_cfg->irq_num); cmd.params[2] |= mc_enc(32, 32, obj_id); cmd.params[3] |= mc_enc(0, 8, obj_type[0]); cmd.params[3] |= mc_enc(8, 8, obj_type[1]); @@ -1189,7 +1192,7 @@ int dprc_get_obj_irq(struct fsl_mc_io *mc_io, /* retrieve response parameters */ irq_cfg->val = (u32)mc_dec(cmd.params[0], 0, 32); irq_cfg->paddr = (u64)mc_dec(cmd.params[1], 0, 64); - irq_cfg->user_irq_id = (int)mc_dec(cmd.params[2], 0, 32); + irq_cfg->irq_num = (int)mc_dec(cmd.params[2], 0, 32); *type = (int)mc_dec(cmd.params[2], 32, 32); return 0; @@ -1437,14 +1440,8 @@ EXPORT_SYMBOL(dprc_set_obj_label); * @endpoint1: Endpoint 1 configuration parameters * @endpoint2: Endpoint 2 configuration parameters * @cfg: Connection configuration. The connection configuration is ignored for - * connections made to DPMAC objects, where rate is set according to - * MAC configuration. - * The committed rate is the guaranteed rate for the connection. - * The maximum rate is an upper limit allowed for the connection; it is - * expected to be equal or higher than the committed rate. - * When committed and maximum rates are both zero, the connection is set - * to "best effort" mode, having lower priority compared to connections - * with committed or maximum rates. + * connections made to DPMAC objects, where rate is retrieved from the + * MAC configuration. * * Return: '0' on Success; Error code otherwise. */ @@ -1555,7 +1552,10 @@ int dprc_disconnect(struct fsl_mc_io *mc_io, * @token: Token of DPRC object * @endpoint1: Endpoint 1 configuration parameters * @endpoint2: Returned endpoint 2 configuration parameters -* @state: Returned link state: 1 - link is up, 0 - link is down +* @state: Returned link state: +* 1 - link is up; +* 0 - link is down; +* -1 - no connection (endpoint2 information is irrelevant) * * Return: '0' on Success; -ENAVAIL if connection does not exist. */ diff --git a/drivers/staging/fsl-mc/bus/mc-msi.c b/drivers/staging/fsl-mc/bus/mc-msi.c index 3a8258f..ba48add 100644 --- a/drivers/staging/fsl-mc/bus/mc-msi.c +++ b/drivers/staging/fsl-mc/bus/mc-msi.c @@ -65,7 +65,7 @@ static void __fsl_mc_msi_write_msg(struct fsl_mc_device *mc_bus_dev, irq_cfg.paddr = ((u64)msi_desc->msg.address_hi << 32) | msi_desc->msg.address_lo; irq_cfg.val = msi_desc->msg.data; - irq_cfg.user_irq_id = msi_desc->irq; + irq_cfg.irq_num = msi_desc->irq; if (owner_mc_dev == mc_bus_dev) { /* diff --git a/drivers/staging/fsl-mc/include/dprc.h b/drivers/staging/fsl-mc/include/dprc.h index 94c4927..593b2bb 100644 --- a/drivers/staging/fsl-mc/include/dprc.h +++ b/drivers/staging/fsl-mc/include/dprc.h @@ -94,11 +94,6 @@ int dprc_close(struct fsl_mc_io *mc_io, */ #define DPRC_CFG_OPT_TOPOLOGY_CHANGES_ALLOWED 0x00000008 -/* IOMMU bypass - indicates whether objects of this container are permitted - * to bypass the IOMMU. - */ -#define DPRC_CFG_OPT_IOMMU_BYPASS 0x00000010 - /* AIOP - Indicates that container belongs to AIOP. */ #define DPRC_CFG_OPT_AIOP 0x00000020 @@ -173,12 +168,12 @@ int dprc_reset_container(struct fsl_mc_io *mc_io, * struct dprc_irq_cfg - IRQ configuration * @paddr: Address that must be written to signal a message-based interrupt * @val: Value to write into irq_addr address - * @user_irq_id: A user defined number associated with this IRQ + * @irq_num: A user defined number associated with this IRQ */ struct dprc_irq_cfg { phys_addr_t paddr; u32 val; - int user_irq_id; + int irq_num; }; int dprc_set_irq(struct fsl_mc_io *mc_io, @@ -353,6 +348,14 @@ int dprc_get_obj_count(struct fsl_mc_io *mc_io, #define DPRC_OBJ_STATE_PLUGGED 0x00000002 /** + * Shareability flag - Object flag indicating no memory shareability. + * the object generates memory accesses that are non coherent with other + * masters; + * user is responsible for proper memory handling through IOMMU configuration. + */ +#define DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY 0x0001 + +/** * struct dprc_obj_desc - Object descriptor, returned from dprc_get_obj() * @type: Type of object: NULL terminated string * @id: ID of logical object resource @@ -363,6 +366,7 @@ int dprc_get_obj_count(struct fsl_mc_io *mc_io, * @region_count: Number of mappable regions supported by the object * @state: Object state: combination of DPRC_OBJ_STATE_ states * @label: Object label + * @flags: Object's flags */ struct dprc_obj_desc { char type[16]; @@ -374,6 +378,7 @@ struct dprc_obj_desc { u8 region_count; u32 state; char label[16]; + u16 flags; }; int dprc_get_obj(struct fsl_mc_io *mc_io, -- cgit v0.10.2 From 9787d4e05e022de73eafdf70319ae26a4978a7b9 Mon Sep 17 00:00:00 2001 From: Itai Katz Date: Mon, 11 Apr 2016 11:55:40 -0500 Subject: staging: fsl-mc: don't use object versions to make binding decisions Up until now if the object version expected by a driver (in the API header file) did not match the actual object version in the MC hardware the bus driver refused to bind the object to the driver or printed out WARN_ON dumps. This patch removes those checks, and the responsibility of object version checking should now be done in the object drivers themselves. If the actual version discovered is not supported, the driver's probe function should fail. Drivers should use version checks to support new features and provide backwards compatibility if at all possible. This patch also removes the checks that caused bus driver probing to fail if the overall MC version discovered did not match the firmware version from the API header...this was too strict. The overall MC version is informational like a release number, and continues to be printed in the boot log. Signed-off-by: Itai Katz (Stuart: reworded commit log) Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c index 4334f3c..2d88c10 100644 --- a/drivers/staging/fsl-mc/bus/dprc-driver.c +++ b/drivers/staging/fsl-mc/bus/dprc-driver.c @@ -780,9 +780,7 @@ static int dprc_remove(struct fsl_mc_device *mc_dev) static const struct fsl_mc_device_match_id match_id_table[] = { { .vendor = FSL_MC_VENDOR_FREESCALE, - .obj_type = "dprc", - .ver_major = DPRC_VER_MAJOR, - .ver_minor = DPRC_VER_MINOR}, + .obj_type = "dprc"}, {.vendor = 0x0}, }; diff --git a/drivers/staging/fsl-mc/bus/mc-allocator.c b/drivers/staging/fsl-mc/bus/mc-allocator.c index bdb4b0e..73a75a6 100644 --- a/drivers/staging/fsl-mc/bus/mc-allocator.c +++ b/drivers/staging/fsl-mc/bus/mc-allocator.c @@ -709,20 +709,14 @@ static const struct fsl_mc_device_match_id match_id_table[] = { { .vendor = FSL_MC_VENDOR_FREESCALE, .obj_type = "dpbp", - .ver_major = DPBP_VER_MAJOR, - .ver_minor = DPBP_VER_MINOR }, { .vendor = FSL_MC_VENDOR_FREESCALE, .obj_type = "dpmcp", - .ver_major = DPMCP_VER_MAJOR, - .ver_minor = DPMCP_VER_MINOR }, { .vendor = FSL_MC_VENDOR_FREESCALE, .obj_type = "dpcon", - .ver_major = DPCON_VER_MAJOR, - .ver_minor = DPCON_VER_MINOR }, {.vendor = 0x0}, }; diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c index b594556..981e4c2 100644 --- a/drivers/staging/fsl-mc/bus/mc-bus.c +++ b/drivers/staging/fsl-mc/bus/mc-bus.c @@ -40,8 +40,6 @@ static int fsl_mc_bus_match(struct device *dev, struct device_driver *drv) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev); struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(drv); bool found = false; - bool major_version_mismatch = false; - bool minor_version_mismatch = false; if (WARN_ON(!fsl_mc_bus_exists())) goto out; @@ -64,32 +62,12 @@ static int fsl_mc_bus_match(struct device *dev, struct device_driver *drv) for (id = mc_drv->match_id_table; id->vendor != 0x0; id++) { if (id->vendor == mc_dev->obj_desc.vendor && strcmp(id->obj_type, mc_dev->obj_desc.type) == 0) { - if (id->ver_major == mc_dev->obj_desc.ver_major) { - found = true; - if (id->ver_minor != mc_dev->obj_desc.ver_minor) - minor_version_mismatch = true; - } else { - major_version_mismatch = true; - } + found = true; break; } } - if (major_version_mismatch) { - dev_warn(dev, - "Major version mismatch: driver version %u.%u, MC object version %u.%u\n", - id->ver_major, id->ver_minor, - mc_dev->obj_desc.ver_major, - mc_dev->obj_desc.ver_minor); - } else if (minor_version_mismatch) { - dev_warn(dev, - "Minor version mismatch: driver version %u.%u, MC object version %u.%u\n", - id->ver_major, id->ver_minor, - mc_dev->obj_desc.ver_major, - mc_dev->obj_desc.ver_minor); - } - out: dev_dbg(dev, "%smatched\n", found ? "" : "not "); return found; @@ -722,20 +700,6 @@ static int fsl_mc_bus_probe(struct platform_device *pdev) "Freescale Management Complex Firmware version: %u.%u.%u\n", mc_version.major, mc_version.minor, mc_version.revision); - if (mc_version.major < MC_VER_MAJOR) { - dev_err(&pdev->dev, - "ERROR: MC firmware version not supported by driver (driver version: %u.%u)\n", - MC_VER_MAJOR, MC_VER_MINOR); - error = -ENOTSUPP; - goto error_cleanup_mc_io; - } - - if (mc_version.major > MC_VER_MAJOR) { - dev_warn(&pdev->dev, - "WARNING: driver may not support newer MC firmware features (driver version: %u.%u)\n", - MC_VER_MAJOR, MC_VER_MINOR); - } - error = get_mc_addr_translation_ranges(&pdev->dev, &mc->translation_ranges, &mc->num_translation_ranges); -- cgit v0.10.2 From 0f90f25b8f83f5185c0fea8fa02b6bb77917f916 Mon Sep 17 00:00:00 2001 From: Stuart Yoder Date: Mon, 11 Apr 2016 11:49:13 -0500 Subject: staging: fsl-mc: set up coherent dma ops for added devices Unless discovered devices have the no shareability flag set, set up coherent dma ops for them. Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c index 981e4c2..8bf76d7 100644 --- a/drivers/staging/fsl-mc/bus/mc-bus.c +++ b/drivers/staging/fsl-mc/bus/mc-bus.c @@ -469,6 +469,10 @@ int fsl_mc_device_add(struct dprc_obj_desc *obj_desc, goto error_cleanup_dev; } + /* Objects are coherent, unless 'no shareability' flag set. */ + if (!(obj_desc->flags & DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY)) + arch_setup_dma_ops(&mc_dev->dev, 0, 0, NULL, true); + /* * The device-specific probe callback will get invoked by device_add() */ -- cgit v0.10.2 From b3721fc1e0cb2f2e1e4732ab4c9bf72363a6b5ed Mon Sep 17 00:00:00 2001 From: Itai Katz Date: Mon, 11 Apr 2016 11:55:48 -0500 Subject: staging: fsl-mc: set cacheable flag for added devices if applicable Some DPAA2 devices have mmio regions that should be mapped as cacheable by drivers. Set IORESOURCE_CACHEABLE in the region's flags if applicable. Signed-off-by: Itai Katz [Stuart: update subject and commit message] Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c index 8bf76d7..2075597 100644 --- a/drivers/staging/fsl-mc/bus/mc-bus.c +++ b/drivers/staging/fsl-mc/bus/mc-bus.c @@ -354,6 +354,8 @@ static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev, regions[i].end = regions[i].start + region_desc.size - 1; regions[i].name = "fsl-mc object MMIO region"; regions[i].flags = IORESOURCE_IO; + if (region_desc.flags & DPRC_REGION_CACHEABLE) + regions[i].flags |= IORESOURCE_CACHEABLE; } mc_dev->regions = regions; -- cgit v0.10.2 From 9529d166f32a2364fa644f8431ba508443953d64 Mon Sep 17 00:00:00 2001 From: Itai Katz Date: Mon, 11 Apr 2016 11:55:55 -0500 Subject: staging: fsl-mc: get version of root dprc from MC hardware The root dprc is discovered as a platform device in the device tree. The version of that dprc was previously set using hardcoded values from the API header in the kernel). This patch removes the use of the hardcoded version numbers and instead reads the actual dprc version from the hardware. Signed-off-by: Itai Katz (Stuart: resolved merge conflict, updated commit subject/log) Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c index 2075597..b4c3c5e 100644 --- a/drivers/staging/fsl-mc/bus/mc-bus.c +++ b/drivers/staging/fsl-mc/bus/mc-bus.c @@ -229,11 +229,10 @@ static bool fsl_mc_is_root_dprc(struct device *dev) return dev == root_dprc_dev; } -static int get_dprc_icid(struct fsl_mc_io *mc_io, - int container_id, u16 *icid) +static int get_dprc_attr(struct fsl_mc_io *mc_io, + int container_id, struct dprc_attributes *attr) { u16 dprc_handle; - struct dprc_attributes attr; int error; error = dprc_open(mc_io, 0, container_id, &dprc_handle); @@ -242,15 +241,14 @@ static int get_dprc_icid(struct fsl_mc_io *mc_io, return error; } - memset(&attr, 0, sizeof(attr)); - error = dprc_get_attributes(mc_io, 0, dprc_handle, &attr); + memset(attr, 0, sizeof(struct dprc_attributes)); + error = dprc_get_attributes(mc_io, 0, dprc_handle, attr); if (error < 0) { dev_err(mc_io->dev, "dprc_get_attributes() failed: %d\n", error); goto common_cleanup; } - *icid = attr.icid; error = 0; common_cleanup: @@ -258,6 +256,34 @@ common_cleanup: return error; } +static int get_dprc_icid(struct fsl_mc_io *mc_io, + int container_id, u16 *icid) +{ + struct dprc_attributes attr; + int error; + + error = get_dprc_attr(mc_io, container_id, &attr); + if (error == 0) + *icid = attr.icid; + + return error; +} + +static int get_dprc_version(struct fsl_mc_io *mc_io, + int container_id, u16 *major, u16 *minor) +{ + struct dprc_attributes attr; + int error; + + error = get_dprc_attr(mc_io, container_id, &attr); + if (error == 0) { + *major = attr.version.major; + *minor = attr.version.minor; + } + + return error; +} + static int translate_mc_addr(struct fsl_mc_device *mc_dev, enum dprc_region_type mc_region_type, u64 mc_offset, phys_addr_t *phys_addr) @@ -719,11 +745,14 @@ static int fsl_mc_bus_probe(struct platform_device *pdev) goto error_cleanup_mc_io; } + error = get_dprc_version(mc_io, container_id, + &obj_desc.ver_major, &obj_desc.ver_minor); + if (error < 0) + goto error_cleanup_mc_io; + obj_desc.vendor = FSL_MC_VENDOR_FREESCALE; strcpy(obj_desc.type, "dprc"); obj_desc.id = container_id; - obj_desc.ver_major = DPRC_VER_MAJOR; - obj_desc.ver_minor = DPRC_VER_MINOR; obj_desc.irq_count = 1; obj_desc.region_count = 0; -- cgit v0.10.2 From 1716cb4c65d2ca4e18110b345b11b285d89d346f Mon Sep 17 00:00:00 2001 From: Itai Katz Date: Mon, 11 Apr 2016 11:56:05 -0500 Subject: staging: fsl-mc: add dprc version check The dprc driver supports dprc version 5.0 and above. This patch adds the code to check the version. Signed-off-by: Itai Katz (Stuart: resolved merge conflicts, split dpseci quirk into separate patch) Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/dprc-cmd.h b/drivers/staging/fsl-mc/bus/dprc-cmd.h index d0198f5..9b854fa 100644 --- a/drivers/staging/fsl-mc/bus/dprc-cmd.h +++ b/drivers/staging/fsl-mc/bus/dprc-cmd.h @@ -40,9 +40,9 @@ #ifndef _FSL_DPRC_CMD_H #define _FSL_DPRC_CMD_H -/* DPRC Version */ -#define DPRC_VER_MAJOR 5 -#define DPRC_VER_MINOR 1 +/* Minimal supported DPRC Version */ +#define DPRC_MIN_VER_MAJOR 5 +#define DPRC_MIN_VER_MINOR 0 /* Command IDs */ #define DPRC_CMDID_CLOSE 0x800 diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c index 2d88c10..53c6e98 100644 --- a/drivers/staging/fsl-mc/bus/dprc-driver.c +++ b/drivers/staging/fsl-mc/bus/dprc-driver.c @@ -693,6 +693,25 @@ static int dprc_probe(struct fsl_mc_device *mc_dev) goto error_cleanup_msi_domain; } + error = dprc_get_attributes(mc_dev->mc_io, 0, mc_dev->mc_handle, + &mc_bus->dprc_attr); + if (error < 0) { + dev_err(&mc_dev->dev, "dprc_get_attributes() failed: %d\n", + error); + goto error_cleanup_open; + } + + if (mc_bus->dprc_attr.version.major < DPRC_MIN_VER_MAJOR || + (mc_bus->dprc_attr.version.major == DPRC_MIN_VER_MAJOR && + mc_bus->dprc_attr.version.minor < DPRC_MIN_VER_MINOR)) { + dev_err(&mc_dev->dev, + "ERROR: DPRC version %d.%d not supported\n", + mc_bus->dprc_attr.version.major, + mc_bus->dprc_attr.version.minor); + error = -ENOTSUPP; + goto error_cleanup_open; + } + mutex_init(&mc_bus->scan_mutex); /* diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c index b4c3c5e..4053643 100644 --- a/drivers/staging/fsl-mc/bus/mc-bus.c +++ b/drivers/staging/fsl-mc/bus/mc-bus.c @@ -745,6 +745,7 @@ static int fsl_mc_bus_probe(struct platform_device *pdev) goto error_cleanup_mc_io; } + memset(&obj_desc, 0, sizeof(struct dprc_obj_desc)); error = get_dprc_version(mc_io, container_id, &obj_desc.ver_major, &obj_desc.ver_minor); if (error < 0) diff --git a/drivers/staging/fsl-mc/include/mc-private.h b/drivers/staging/fsl-mc/include/mc-private.h index ee5f1d2..cab1ae9 100644 --- a/drivers/staging/fsl-mc/include/mc-private.h +++ b/drivers/staging/fsl-mc/include/mc-private.h @@ -94,12 +94,14 @@ struct fsl_mc_resource_pool { * from the physical DPRC. * @irq_resources: Pointer to array of IRQ objects for the IRQ pool * @scan_mutex: Serializes bus scanning + * @dprc_attr: DPRC attributes */ struct fsl_mc_bus { struct fsl_mc_device mc_dev; struct fsl_mc_resource_pool resource_pools[FSL_MC_NUM_POOL_TYPES]; struct fsl_mc_device_irq *irq_resources; struct mutex scan_mutex; /* serializes bus scanning */ + struct dprc_attributes dprc_attr; }; #define to_fsl_mc_bus(_mc_dev) \ -- cgit v0.10.2 From ae014c23d5267e1bd2bbafab0e1c741c202496a5 Mon Sep 17 00:00:00 2001 From: Horia Geanta Date: Mon, 11 Apr 2016 11:50:26 -0500 Subject: staging: fsl-mc: add quirk handling for dpseci objects < 4.0 dpseci objects < 4.0 are not coherent-- in spite of the fact that the MC reports them to be coherent in certain versions. Add a special case to set the no shareability flag for dpseci objects < 4.0. Signed-off-by: Horia Geanta (Stuart: reworded commit message, updated comment in patch) Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c index 53c6e98..7fc4717 100644 --- a/drivers/staging/fsl-mc/bus/dprc-driver.c +++ b/drivers/staging/fsl-mc/bus/dprc-driver.c @@ -312,6 +312,15 @@ int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev, continue; } + /* + * add a quirk for all versions of dpsec < 4.0...none + * are coherent regardless of what the MC reports. + */ + if ((strcmp(obj_desc->type, "dpseci") == 0) && + (obj_desc->ver_major < 4)) + obj_desc->flags |= + DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY; + irq_count += obj_desc->irq_count; dev_dbg(&mc_bus_dev->dev, "Discovered object: type %s, id %d\n", -- cgit v0.10.2 From 01f9330846a3aa314a4b784499724b05803f24e6 Mon Sep 17 00:00:00 2001 From: Itai Katz Date: Mon, 11 Apr 2016 11:56:11 -0500 Subject: staging: fsl-mc: add dpmcp version check The dpmcp driver supports dpmcp version 3.0 and above. This patch adds the code to check the version. Signed-off-by: Itai Katz Signed-off-by: Stuart Yoder Acked-by: German Rivera drivers/staging/fsl-mc/bus/dpmcp-cmd.h | 6 +++--- drivers/staging/fsl-mc/bus/mc-allocator.c | 11 +++++++++++ 2 files changed, 14 insertions(+), 3 deletions(-) Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h index c6f4ec0..c9b52dd 100644 --- a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h +++ b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h @@ -32,9 +32,9 @@ #ifndef _FSL_DPMCP_CMD_H #define _FSL_DPMCP_CMD_H -/* DPMCP Version */ -#define DPMCP_VER_MAJOR 3 -#define DPMCP_VER_MINOR 0 +/* Minimal supported DPMCP Version */ +#define DPMCP_MIN_VER_MAJOR 3 +#define DPMCP_MIN_VER_MINOR 0 /* Command IDs */ #define DPMCP_CMDID_CLOSE 0x800 diff --git a/drivers/staging/fsl-mc/bus/mc-allocator.c b/drivers/staging/fsl-mc/bus/mc-allocator.c index 73a75a6..e02d5e5 100644 --- a/drivers/staging/fsl-mc/bus/mc-allocator.c +++ b/drivers/staging/fsl-mc/bus/mc-allocator.c @@ -297,6 +297,17 @@ int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev, if (WARN_ON(!dpmcp_dev)) goto error_cleanup_resource; + if (dpmcp_dev->obj_desc.ver_major < DPMCP_MIN_VER_MAJOR || + (dpmcp_dev->obj_desc.ver_major == DPMCP_MIN_VER_MAJOR && + dpmcp_dev->obj_desc.ver_minor < DPMCP_MIN_VER_MINOR)) { + dev_err(&dpmcp_dev->dev, + "ERROR: Version %d.%d of DPMCP not supported.\n", + dpmcp_dev->obj_desc.ver_major, + dpmcp_dev->obj_desc.ver_minor); + error = -ENOTSUPP; + goto error_cleanup_resource; + } + if (WARN_ON(dpmcp_dev->obj_desc.region_count == 0)) goto error_cleanup_resource; -- cgit v0.10.2 From 633440505f16f645d22f2d7f8367125ab89123f8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Horia=20Geant=C4=83?= Date: Mon, 11 Apr 2016 11:56:16 -0500 Subject: staging: fsl-mc: return -EINVAL for all fsl_mc_portal_allocate() failures MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There are some error paths that allow for a NULL new_mc_io and err = 0 return code. Return -EINVAL instead. Signed-off-by: Horia Geantă Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/mc-allocator.c b/drivers/staging/fsl-mc/bus/mc-allocator.c index e02d5e5..fb08f22 100644 --- a/drivers/staging/fsl-mc/bus/mc-allocator.c +++ b/drivers/staging/fsl-mc/bus/mc-allocator.c @@ -293,6 +293,7 @@ int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev, if (error < 0) return error; + error = -EINVAL; dpmcp_dev = resource->data; if (WARN_ON(!dpmcp_dev)) goto error_cleanup_resource; -- cgit v0.10.2 From 33ea58a9102361eff6461a31a4900dcdf0966a60 Mon Sep 17 00:00:00 2001 From: Matthias Brugger Date: Thu, 14 Apr 2016 23:24:26 +0200 Subject: staging: fsl-mc: bus: Drop warning When updating the irq_chip and msi_domain_ops, the code checkes for already present functions. When more then one ITS controller are present in the system, irq_chip and msi_domain_ops got already set and a warning is invoked. This patch deletes the warning, as the funtions are just already set to the needed callbacks. Signed-off-by: Matthias Brugger Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/fsl-mc/bus/mc-msi.c b/drivers/staging/fsl-mc/bus/mc-msi.c index ba48add..e202b2b 100644 --- a/drivers/staging/fsl-mc/bus/mc-msi.c +++ b/drivers/staging/fsl-mc/bus/mc-msi.c @@ -37,10 +37,8 @@ static void fsl_mc_msi_update_dom_ops(struct msi_domain_info *info) /* * set_desc should not be set by the caller */ - if (WARN_ON(ops->set_desc)) - return; - - ops->set_desc = fsl_mc_msi_set_desc; + if (ops->set_desc == NULL) + ops->set_desc = fsl_mc_msi_set_desc; } static void __fsl_mc_msi_write_msg(struct fsl_mc_device *mc_bus_dev, @@ -129,10 +127,8 @@ static void fsl_mc_msi_update_chip_ops(struct msi_domain_info *info) /* * irq_write_msi_msg should not be set by the caller */ - if (WARN_ON(chip->irq_write_msi_msg)) - return; - - chip->irq_write_msi_msg = fsl_mc_msi_write_msg; + if (chip->irq_write_msi_msg == NULL) + chip->irq_write_msi_msg = fsl_mc_msi_write_msg; } /** -- cgit v0.10.2 From cb18d3a2f62ddb280e363f607ad0e20a01a6f63d Mon Sep 17 00:00:00 2001 From: Stuart Yoder Date: Mon, 11 Apr 2016 11:50:48 -0500 Subject: MAINTAINERS: fsl-mc: Add second maintainer Add Stuart Yoder as additional maintainer of fsl-mc bus driver. Signed-off-by: Stuart Yoder Acked-by: German Rivera Signed-off-by: Greg Kroah-Hartman diff --git a/MAINTAINERS b/MAINTAINERS index d4c3c93..b940c6d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4679,6 +4679,7 @@ F: sound/soc/fsl/mpc8610_hpcd.c FREESCALE QORIQ MANAGEMENT COMPLEX DRIVER M: "J. German Rivera" +M: Stuart Yoder L: linux-kernel@vger.kernel.org S: Maintained F: drivers/staging/fsl-mc/ -- cgit v0.10.2 From e7d992d8b6224aaf0ee69c8403681bcb70d425b6 Mon Sep 17 00:00:00 2001 From: Parth Sane Date: Mon, 25 Apr 2016 21:13:18 +0530 Subject: rtl8712: Fixed alignment to match open parenthesis Fixed alignment to match open parenthesis. Signed-off-by: Parth Sane Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c index 0c76fbc..0dd458d 100644 --- a/drivers/staging/rtl8712/hal_init.c +++ b/drivers/staging/rtl8712/hal_init.c @@ -197,8 +197,8 @@ static u8 rtl8712_dl_fw(struct _adapter *padapter) 0x0000ffff); memcpy(ppayload, ptr, dump_imem_sz); r8712_write_mem(padapter, RTL8712_DMA_VOQ, - dump_imem_sz + TXDESC_SIZE, - (u8 *)ptx_desc); + dump_imem_sz + TXDESC_SIZE, + (u8 *)ptx_desc); ptr += dump_imem_sz; imem_sz -= dump_imem_sz; } while (imem_sz > 0); @@ -226,7 +226,8 @@ static u8 rtl8712_dl_fw(struct _adapter *padapter) 0x0000ffff); memcpy(ppayload, ptr, dump_emem_sz); r8712_write_mem(padapter, RTL8712_DMA_VOQ, - dump_emem_sz + TXDESC_SIZE, (u8 *)ptx_desc); + dump_emem_sz + TXDESC_SIZE, + (u8 *)ptx_desc); ptr += dump_emem_sz; emem_sz -= dump_emem_sz; } while (emem_sz > 0); @@ -278,7 +279,7 @@ static u8 rtl8712_dl_fw(struct _adapter *padapter) ptx_desc->txdw0 |= cpu_to_le32(BIT(28)); memcpy(ppayload, &fwhdr.fwpriv, fwhdr.fw_priv_sz); r8712_write_mem(padapter, RTL8712_DMA_VOQ, - fwhdr.fw_priv_sz + TXDESC_SIZE, (u8 *)ptx_desc); + fwhdr.fw_priv_sz + TXDESC_SIZE, (u8 *)ptx_desc); /* polling dmem code done */ i = 100; -- cgit v0.10.2 From 2c78f701a4bb61ec3495cccf445ef9282e115927 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Sat, 30 Apr 2016 22:33:02 +0100 Subject: staging: i4l: act2000: fix use of return checkpatch warns that return is not a function and as such the brace after it is not required. Signed-off-by: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/i4l/act2000/act2000_isa.c b/drivers/staging/i4l/act2000/act2000_isa.c index b5fad29..34c0a9a 100644 --- a/drivers/staging/i4l/act2000/act2000_isa.c +++ b/drivers/staging/i4l/act2000/act2000_isa.c @@ -439,5 +439,5 @@ act2000_isa_download(act2000_card *card, act2000_ddef __user *cb) } kfree(buf); msleep_interruptible(500); - return (act2000_isa_getid(card)); + return act2000_isa_getid(card); } -- cgit v0.10.2 From 360a63c850e61f4415036ade414479c4ad204764 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Sat, 30 Apr 2016 22:33:03 +0100 Subject: staging: i4l: act2000: do not assign in if It is not the kernel coding style to assign values to some variable in if statement. Split them up into different statements. Signed-off-by: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/i4l/act2000/act2000_isa.c b/drivers/staging/i4l/act2000/act2000_isa.c index 34c0a9a..048507e 100644 --- a/drivers/staging/i4l/act2000/act2000_isa.c +++ b/drivers/staging/i4l/act2000/act2000_isa.c @@ -31,7 +31,8 @@ act2000_isa_reset(unsigned short portbase) int serial = 0; found = 0; - if ((reg = inb(portbase + ISA_COR)) != 0xff) { + reg = inb(portbase + ISA_COR); + if (reg != 0xff) { outb(reg | ISA_COR_RESET, portbase + ISA_COR); mdelay(10); outb(reg, portbase + ISA_COR); @@ -303,7 +304,8 @@ act2000_isa_send(act2000_card *card) while (1) { spin_lock_irqsave(&card->lock, flags); if (!(card->sbuf)) { - if ((card->sbuf = skb_dequeue(&card->sndq))) { + card->sbuf = skb_dequeue(&card->sndq); + if (card->sbuf) { card->ack_msg = card->sbuf->data; msg = (actcapi_msg *)card->sbuf->data; if ((msg->hdr.cmd.cmd == 0x86) && @@ -378,7 +380,8 @@ act2000_isa_getid(act2000_card *card) printk(KERN_WARNING "act2000: Wrong Firmware-ID!\n"); return -EPROTO; } - if ((p = strchr(fid.revision, '\n'))) + p = strchr(fid.revision, '\n'); + if (p) *p = '\0'; printk(KERN_INFO "act2000: Firmware-ID: %s\n", fid.revision); if (card->flags & ACT2000_FLAGS_IVALID) { -- cgit v0.10.2 From fdf94a00e3f8d9f81a062907ec1cd6083d659cf2 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Sat, 30 Apr 2016 22:33:04 +0100 Subject: staging: i4l: act2000: remove blank line after brace checkpatch complains about an extra blank line after an opening brace. Signed-off-by: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/i4l/act2000/act2000_isa.c b/drivers/staging/i4l/act2000/act2000_isa.c index 048507e..27c0046 100644 --- a/drivers/staging/i4l/act2000/act2000_isa.c +++ b/drivers/staging/i4l/act2000/act2000_isa.c @@ -358,7 +358,6 @@ act2000_isa_send(act2000_card *card) static int act2000_isa_getid(act2000_card *card) { - act2000_fwid fid; u_char *p = (u_char *)&fid; int count = 0; -- cgit v0.10.2 From 78481742be52577fd31670034b13b9b85e120d96 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee Date: Sat, 30 Apr 2016 22:33:05 +0100 Subject: staging: i4l: act2000: remove extra space It is not kernel coding style to give an extra space after a cast. We get warned about it by checkpatch. Signed-off-by: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/i4l/act2000/act2000_isa.c b/drivers/staging/i4l/act2000/act2000_isa.c index 27c0046..f0eb844 100644 --- a/drivers/staging/i4l/act2000/act2000_isa.c +++ b/drivers/staging/i4l/act2000/act2000_isa.c @@ -233,7 +233,7 @@ act2000_isa_receive(act2000_card *card) { u_char c; - if (test_and_set_bit(ACT2000_LOCK_RX, (void *) &card->ilock) != 0) + if (test_and_set_bit(ACT2000_LOCK_RX, (void *)&card->ilock) != 0) return; while (!act2000_isa_readb(card, &c)) { if (card->idat.isa.rcvidx < 8) { @@ -248,7 +248,7 @@ act2000_isa_receive(act2000_card *card) card->idat.isa.rcvignore = 1; printk(KERN_WARNING "act2000_isa_receive: no memory\n"); - test_and_clear_bit(ACT2000_LOCK_RX, (void *) &card->ilock); + test_and_clear_bit(ACT2000_LOCK_RX, (void *)&card->ilock); return; } memcpy(skb_put(card->idat.isa.rcvskb, 8), card->idat.isa.rcvhdr, 8); @@ -288,7 +288,7 @@ act2000_isa_receive(act2000_card *card) (card->idat.isa.rcvidx < card->idat.isa.rcvlen))) act2000_schedule_poll(card); } - test_and_clear_bit(ACT2000_LOCK_RX, (void *) &card->ilock); + test_and_clear_bit(ACT2000_LOCK_RX, (void *)&card->ilock); } void @@ -299,7 +299,7 @@ act2000_isa_send(act2000_card *card) actcapi_msg *msg; int l; - if (test_and_set_bit(ACT2000_LOCK_TX, (void *) &card->ilock) != 0) + if (test_and_set_bit(ACT2000_LOCK_TX, (void *)&card->ilock) != 0) return; while (1) { spin_lock_irqsave(&card->lock, flags); @@ -319,7 +319,7 @@ act2000_isa_send(act2000_card *card) spin_unlock_irqrestore(&card->lock, flags); if (!(card->sbuf)) { /* No more data to send */ - test_and_clear_bit(ACT2000_LOCK_TX, (void *) &card->ilock); + test_and_clear_bit(ACT2000_LOCK_TX, (void *)&card->ilock); return; } skb = card->sbuf; @@ -327,7 +327,7 @@ act2000_isa_send(act2000_card *card) while (skb->len) { if (act2000_isa_writeb(card, *(skb->data))) { /* Fifo is full, but more data to send */ - test_and_clear_bit(ACT2000_LOCK_TX, (void *) &card->ilock); + test_and_clear_bit(ACT2000_LOCK_TX, (void *)&card->ilock); /* Schedule myself */ act2000_schedule_tx(card); return; -- cgit v0.10.2 From ffc9b27571c0add3cdaef2a7ea8e19209fe1259a Mon Sep 17 00:00:00 2001 From: Jacky Boen Date: Sun, 1 May 2016 23:50:29 +0800 Subject: Staging: drivers: rtl8188eu: move constants to the right in comparisons Fixed coding style issue Signed-off-by: Jacky Boen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index 0c7456f..6b83ee3 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -57,8 +57,8 @@ static bool HalUsbSetQueuePipeMapping8188EUsb(struct adapter *adapt, u8 NumInPip _ConfigNormalChipOutEP_8188E(adapt, NumOutPipe); /* Normal chip with one IN and one OUT doesn't have interrupt IN EP. */ - if (1 == haldata->OutEpNumber) { - if (1 != NumInPipe) + if (haldata->OutEpNumber == 1) { + if (NumInPipe != 1) return result; } -- cgit v0.10.2 From f43534b97ac76cdde24908182f4cf2e2dd906264 Mon Sep 17 00:00:00 2001 From: Jacky Boen Date: Sun, 1 May 2016 23:50:30 +0800 Subject: Staging: drivers: rtl8188eu: fixed typo Fixed typo Signed-off-by: Jacky Boen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index 6b83ee3..547fb61 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -174,7 +174,7 @@ static void _InitQueueReservedPage(struct adapter *Adapter) if (haldata->OutEpQueueSel & TX_SELE_LQ) numLQ = 0x1C; - /* NOTE: This step shall be proceed before writting REG_RQPN. */ + /* NOTE: This step shall be proceed before writing REG_RQPN. */ if (haldata->OutEpQueueSel & TX_SELE_NQ) numNQ = 0x1C; value8 = (u8)_NPQ(numNQ); -- cgit v0.10.2 From 637642e2a34f083336753b0a367f1f42efec5e6e Mon Sep 17 00:00:00 2001 From: Jacky Boen Date: Sun, 1 May 2016 23:50:31 +0800 Subject: Staging: drivers: rtl8188eu: fixed block comments style Fixed coding style issue Signed-off-by: Jacky Boen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index 547fb61..61e56c3 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -452,7 +452,8 @@ static void _InitRetryFunction(struct adapter *Adapter) * When Who Remark * 12/10/2010 MHC Separate to smaller function. * - *---------------------------------------------------------------------------*/ + *--------------------------------------------------------------------------- + */ static void usb_AggSettingTxUpdate(struct adapter *Adapter) { struct hal_data_8188e *haldata = GET_HAL_DATA(Adapter); @@ -484,7 +485,8 @@ static void usb_AggSettingTxUpdate(struct adapter *Adapter) * When Who Remark * 12/10/2010 MHC Separate to smaller function. * - *---------------------------------------------------------------------------*/ + *--------------------------------------------------------------------------- + */ static void usb_AggSettingRxUpdate( struct adapter *Adapter @@ -650,7 +652,8 @@ static void _InitAntenna_Selection(struct adapter *Adapter) * Revised History: * When Who Remark * 08/23/2010 MHC HW suspend mode switch test.. - *---------------------------------------------------------------------------*/ + *--------------------------------------------------------------------------- + */ enum rt_rf_power_state RfOnOffDetect(struct adapter *adapt) { u8 val8; -- cgit v0.10.2 From 99f8adc450198d9794c6ce6450888832b1105554 Mon Sep 17 00:00:00 2001 From: Jacky Boen Date: Sun, 1 May 2016 23:50:32 +0800 Subject: Staging: drivers: rtl8188eu: fixed newlines style Fixed coding style issue Signed-off-by: Jacky Boen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index 61e56c3..45f0ee1 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -685,11 +685,9 @@ static u32 rtl8188eu_hal_init(struct adapter *Adapter) #define HAL_INIT_PROFILE_TAG(stage) do {} while (0) - HAL_INIT_PROFILE_TAG(HAL_INIT_STAGES_BEGIN); if (Adapter->pwrctrlpriv.bkeepfwalive) { - if (haldata->odmpriv.RFCalibrateInfo.bIQKInitialized) { rtl88eu_phy_iq_calibrate(Adapter, true); } else { @@ -903,7 +901,6 @@ HAL_INIT_PROFILE_TAG(HAL_INIT_STAGES_END); DBG_88E("%s in %dms\n", __func__, jiffies_to_msecs(jiffies - init_start_time)); - return status; } @@ -966,6 +963,7 @@ static void CardDisableRTL8188EU(struct adapter *Adapter) haldata->bMacPwrCtrlOn = false; Adapter->bFWReady = false; } + static void rtl8192cu_hw_power_down(struct adapter *adapt) { /* 2010/-8/09 MH For power down module, we need to enable register block contrl reg at 0x1c. */ @@ -978,7 +976,6 @@ static void rtl8192cu_hw_power_down(struct adapter *adapt) static u32 rtl8188eu_hal_deinit(struct adapter *Adapter) { - DBG_88E("==> %s\n", __func__); usb_write32(Adapter, REG_HIMR_88E, IMR_DISABLED_88E); @@ -1114,7 +1111,6 @@ readAdapterInfo_8188EU( Hal_ReadAntennaDiversity88E(adapt, eeprom->efuse_eeprom_data, eeprom->bautoload_fail_flag); Hal_EfuseParseBoardType88E(adapt, eeprom->efuse_eeprom_data, eeprom->bautoload_fail_flag); Hal_ReadThermalMeter_88E(adapt, eeprom->efuse_eeprom_data, eeprom->bautoload_fail_flag); - } static void _ReadPROMContent( @@ -1853,7 +1849,6 @@ static void GetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val) default: break; } - } /* */ -- cgit v0.10.2 From a48d498b153bf7dcf2572ad4e82e2049082bb928 Mon Sep 17 00:00:00 2001 From: Jacky Boen Date: Sun, 1 May 2016 23:50:33 +0800 Subject: Staging: drivers: rtl8188eu: fixed brace style Fixed coding style issue Signed-off-by: Jacky Boen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index 45f0ee1..f63b95e 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -711,9 +711,8 @@ static u32 rtl8188eu_hal_init(struct adapter *Adapter) /* Save target channel */ haldata->CurrentChannel = 6;/* default set to 6 */ - if (pwrctrlpriv->reg_rfoff) { + if (pwrctrlpriv->reg_rfoff) pwrctrlpriv->rf_pwrstate = rf_off; - } /* 2010/08/09 MH We need to check if we need to turnon or off RF after detecting */ /* HW GPIO pin. Before PHY_RFConfig8192C. */ -- cgit v0.10.2 From a634696eb4421d09f69c46659fb3fb0aec4e91ad Mon Sep 17 00:00:00 2001 From: Jacky Boen Date: Sun, 1 May 2016 23:50:34 +0800 Subject: Staging: drivers: rtl8188eu: fixed unnecessary else branch Fixed coding style issue Signed-off-by: Jacky Boen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index f63b95e..f6c50e6 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -744,10 +744,9 @@ static u32 rtl8188eu_hal_init(struct adapter *Adapter) DBG_88E("%s: Download Firmware failed!!\n", __func__); Adapter->bFWReady = false; return status; - } else { - RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("Initializeadapt8192CSdio(): Download Firmware Success!!\n")); - Adapter->bFWReady = true; } + RT_TRACE(_module_hci_hal_init_c_, _drv_info_, ("Initializeadapt8192CSdio(): Download Firmware Success!!\n")); + Adapter->bFWReady = true; } rtl8188e_InitializeFirmwareVars(Adapter); -- cgit v0.10.2 From a305990d387f908d9b61368304a94efb5c5af8d9 Mon Sep 17 00:00:00 2001 From: Jacky Boen Date: Sun, 1 May 2016 23:50:35 +0800 Subject: Staging: drivers: rtl8188eu: fixed extraneous indentation Fixed coding style issue Signed-off-by: Jacky Boen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index f6c50e6..68120bd 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -872,7 +872,7 @@ HAL_INIT_PROFILE_TAG(HAL_INIT_STAGES_IQK); /* 2010/08/26 MH Merge from 8192CE. */ if (pwrctrlpriv->rf_pwrstate == rf_on) { if (haldata->odmpriv.RFCalibrateInfo.bIQKInitialized) { - rtl88eu_phy_iq_calibrate(Adapter, true); + rtl88eu_phy_iq_calibrate(Adapter, true); } else { rtl88eu_phy_iq_calibrate(Adapter, false); haldata->odmpriv.RFCalibrateInfo.bIQKInitialized = true; -- cgit v0.10.2 From d5fdbca6745e476f8029fad4ee5a6612b4951dbb Mon Sep 17 00:00:00 2001 From: Jacky Boen Date: Sun, 1 May 2016 23:50:36 +0800 Subject: Staging: drivers: rtl8188eu: fixed extraneous parentheses Fix coding style issue Signed-off-by: Jacky Boen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index 68120bd..d133b70 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -999,7 +999,7 @@ static unsigned int rtl8188eu_inirp_init(struct adapter *Adapter) u8 i; struct recv_buf *precvbuf; uint status; - struct recv_priv *precvpriv = &(Adapter->recvpriv); + struct recv_priv *precvpriv = &Adapter->recvpriv; status = _SUCCESS; @@ -1204,7 +1204,7 @@ static void hw_var_set_opmode(struct adapter *Adapter, u8 variable, u8 *val) StopTxBeacon(Adapter); usb_write8(Adapter, REG_BCN_CTRL, 0x19);/* disable atim wnd */ - } else if ((mode == _HW_STATE_ADHOC_)) { + } else if (mode == _HW_STATE_ADHOC_) { ResumeTxBeacon(Adapter); usb_write8(Adapter, REG_BCN_CTRL, 0x1a); } else if (mode == _HW_STATE_AP_) { @@ -1355,7 +1355,7 @@ static void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val) { u64 tsf; struct mlme_ext_priv *pmlmeext = &Adapter->mlmeextpriv; - struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); + struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; tsf = pmlmeext->TSFValue - rtw_modular64(pmlmeext->TSFValue, (pmlmeinfo->bcn_interval*1024)) - 1024; /* us */ @@ -1412,7 +1412,7 @@ static void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val) usb_write8(Adapter, REG_BCN_CTRL, usb_read8(Adapter, REG_BCN_CTRL) | BIT(4)); } else { /* sitesurvey done */ struct mlme_ext_priv *pmlmeext = &Adapter->mlmeextpriv; - struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); + struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; if ((is_client_associated_to_ap(Adapter)) || ((pmlmeinfo->state&0x03) == WIFI_FW_ADHOC_STATE)) { @@ -1482,7 +1482,7 @@ static void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val) { u8 u1bAIFS, aSifsTime; struct mlme_ext_priv *pmlmeext = &Adapter->mlmeextpriv; - struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); + struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; usb_write8(Adapter, REG_SLOT, val[0]); @@ -1895,19 +1895,19 @@ GetHalDefVar8188EUsb( case HAL_DEF_RA_DECISION_RATE: { u8 MacID = *((u8 *)pValue); - *((u8 *)pValue) = ODM_RA_GetDecisionRate_8188E(&(haldata->odmpriv), MacID); + *((u8 *)pValue) = ODM_RA_GetDecisionRate_8188E(&haldata->odmpriv, MacID); } break; case HAL_DEF_RA_SGI: { u8 MacID = *((u8 *)pValue); - *((u8 *)pValue) = ODM_RA_GetShortGI_8188E(&(haldata->odmpriv), MacID); + *((u8 *)pValue) = ODM_RA_GetShortGI_8188E(&haldata->odmpriv, MacID); } break; case HAL_DEF_PT_PWR_STATUS: { u8 MacID = *((u8 *)pValue); - *((u8 *)pValue) = ODM_RA_GetHwPwrStatus_8188E(&(haldata->odmpriv), MacID); + *((u8 *)pValue) = ODM_RA_GetHwPwrStatus_8188E(&haldata->odmpriv, MacID); } break; case HW_VAR_MAX_RX_AMPDU_FACTOR: @@ -1930,7 +1930,7 @@ GetHalDefVar8188EUsb( break; case HW_DEF_ODM_DBG_FLAG: { - struct odm_dm_struct *dm_ocm = &(haldata->odmpriv); + struct odm_dm_struct *dm_ocm = &haldata->odmpriv; pr_info("dm_ocm->DebugComponents = 0x%llx\n", dm_ocm->DebugComponents); } break; @@ -1958,8 +1958,8 @@ static void UpdateHalRAMask8188EUsb(struct adapter *adapt, u32 mac_id, u8 rssi_l struct sta_info *psta; struct hal_data_8188e *haldata = GET_HAL_DATA(adapt); struct mlme_ext_priv *pmlmeext = &adapt->mlmeextpriv; - struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); - struct wlan_bssid_ex *cur_network = &(pmlmeinfo->network); + struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; + struct wlan_bssid_ex *cur_network = &pmlmeinfo->network; if (mac_id >= NUM_STA) /* CAM_SIZE */ return; @@ -1972,8 +1972,8 @@ static void UpdateHalRAMask8188EUsb(struct adapter *adapt, u32 mac_id, u8 rssi_l networkType = judge_network_type(adapt, cur_network->SupportedRates, supportRateNum) & 0xf; raid = networktype_to_raid(networkType); mask = update_supported_rate(cur_network->SupportedRates, supportRateNum); - mask |= (pmlmeinfo->HT_enable) ? update_MSC_rate(&(pmlmeinfo->HT_caps)) : 0; - if (support_short_GI(adapt, &(pmlmeinfo->HT_caps))) + mask |= (pmlmeinfo->HT_enable) ? update_MSC_rate(&pmlmeinfo->HT_caps) : 0; + if (support_short_GI(adapt, &pmlmeinfo->HT_caps)) shortGIrate = true; break; case 1:/* for broadcast/multicast */ @@ -2014,8 +2014,8 @@ static void UpdateHalRAMask8188EUsb(struct adapter *adapt, u32 mac_id, u8 rssi_l static void SetBeaconRelatedRegisters8188EUsb(struct adapter *adapt) { u32 value32; - struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv); - struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info); + struct mlme_ext_priv *pmlmeext = &adapt->mlmeextpriv; + struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; u32 bcn_ctrl_reg = REG_BCN_CTRL; /* reset TSF, enable update TSF, correcting TSF On Beacon */ -- cgit v0.10.2 From 9cb2dbf316d9a020fa4a042958930b85f24f2a6f Mon Sep 17 00:00:00 2001 From: Jacky Boen Date: Sun, 1 May 2016 23:50:37 +0800 Subject: Staging: drivers: rtl8188eu: fixed extraneous spaces Fix coding style issue Signed-off-by: Jacky Boen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index d133b70..363f3a3 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -992,7 +992,7 @@ static u32 rtl8188eu_hal_deinit(struct adapter *Adapter) } } return _SUCCESS; - } +} static unsigned int rtl8188eu_inirp_init(struct adapter *Adapter) { @@ -1782,7 +1782,7 @@ static void SetHwReg8188EU(struct adapter *Adapter, u8 variable, u8 *val) } break; case HW_VAR_H2C_MEDIA_STATUS_RPT: - rtl8188e_set_FwMediaStatus_cmd(Adapter , (*(__le16 *)val)); + rtl8188e_set_FwMediaStatus_cmd(Adapter, (*(__le16 *)val)); break; case HW_VAR_BCN_VALID: /* BCN_VALID, BIT16 of REG_TDECTRL = BIT0 of REG_TDECTRL+2, write 1 to clear, Clear by sw */ -- cgit v0.10.2 From 99aded71b52cfdfa22721c42e42efdd13a02f0a6 Mon Sep 17 00:00:00 2001 From: Jacky Boen Date: Sun, 1 May 2016 23:50:39 +0800 Subject: Staging: drivers: rtl8188eu: use sizeof(*ptr) instead of sizeof(struct) Fix coding style issue Signed-off-by: Jacky Boen Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c index 363f3a3..87ea3b8 100644 --- a/drivers/staging/rtl8188eu/hal/usb_halinit.c +++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c @@ -2072,8 +2072,7 @@ void rtl8188eu_set_hal_ops(struct adapter *adapt) { struct hal_ops *halfunc = &adapt->HalFunc; - - adapt->HalData = kzalloc(sizeof(struct hal_data_8188e), GFP_KERNEL); + adapt->HalData = kzalloc(sizeof(*adapt->HalData), GFP_KERNEL); if (!adapt->HalData) DBG_88E("cant not alloc memory for HAL DATA\n"); -- cgit v0.10.2 From 8f9d9e0041e8f665b45ab1b25dc34faac01e22b7 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 2 May 2016 19:47:49 +0900 Subject: staging: wilc1000: change handle_get_ip_address's return type to void When handle_get_ip_address is called in hostIFthread that is a kernel thread, it is not checked return type of this function. This patch changes return type to void and removes braces if statement due to have a single statement. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 605cf8f..ce1cd68 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -374,7 +374,7 @@ static void handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx) netdev_err(vif->ndev, "Failed to set IP address\n"); } -static s32 handle_get_ip_address(struct wilc_vif *vif, u8 idx) +static void handle_get_ip_address(struct wilc_vif *vif, u8 idx) { s32 result = 0; struct wid wid; @@ -394,12 +394,8 @@ static s32 handle_get_ip_address(struct wilc_vif *vif, u8 idx) if (memcmp(get_ip[idx], set_ip[idx], IP_ALEN) != 0) wilc_setup_ipaddress(vif, set_ip[idx], idx); - if (result != 0) { + if (result != 0) netdev_err(vif->ndev, "Failed to get IP address\n"); - return -EINVAL; - } - - return result; } static s32 handle_get_mac_address(struct wilc_vif *vif, -- cgit v0.10.2 From cdc339a29f8ea0cf82390823e9297404699a7a07 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 2 May 2016 19:47:50 +0900 Subject: staging: wilc1000: change data type of result in handle_get_ip_address This patch changes data type of result variable from s32 to int. result is used to get return value from wilc_send_config_pkt that has return type of int. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index ce1cd68..acefd3b 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -376,7 +376,7 @@ static void handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx) static void handle_get_ip_address(struct wilc_vif *vif, u8 idx) { - s32 result = 0; + int result = 0; struct wid wid; wid.id = (u16)WID_IP_ADDRESS; -- cgit v0.10.2 From 6f2f5d5ec1091bb54e913c3c26bad5ff6e8f9dd0 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 2 May 2016 19:47:51 +0900 Subject: staging: wilc1000: rename result in handle_get_ip_address This patch renames result to ret that is used to get return value from wilc_send_config_pkt. Some handle_*() functions are used as result, others are used as ret. It will be changed as ret in all handle_*() functions to match variable name. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index acefd3b..1d48214 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -376,7 +376,7 @@ static void handle_set_ip_address(struct wilc_vif *vif, u8 *ip_addr, u8 idx) static void handle_get_ip_address(struct wilc_vif *vif, u8 idx) { - int result = 0; + int ret = 0; struct wid wid; wid.id = (u16)WID_IP_ADDRESS; @@ -384,8 +384,8 @@ static void handle_get_ip_address(struct wilc_vif *vif, u8 idx) wid.val = kmalloc(IP_ALEN, GFP_KERNEL); wid.size = IP_ALEN; - result = wilc_send_config_pkt(vif, GET_CFG, &wid, 1, - wilc_get_vif_idx(vif)); + ret = wilc_send_config_pkt(vif, GET_CFG, &wid, 1, + wilc_get_vif_idx(vif)); memcpy(get_ip[idx], wid.val, IP_ALEN); @@ -394,7 +394,7 @@ static void handle_get_ip_address(struct wilc_vif *vif, u8 idx) if (memcmp(get_ip[idx], set_ip[idx], IP_ALEN) != 0) wilc_setup_ipaddress(vif, set_ip[idx], idx); - if (result != 0) + if (ret != 0) netdev_err(vif->ndev, "Failed to get IP address\n"); } -- cgit v0.10.2 From abfaf5fcd8be6c014d773139390d54d4611ef596 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 2 May 2016 19:47:52 +0900 Subject: staging: wilc1000: fix comparison style of if statement in handle_get_ip_address This patch changes conditional comparison of if statement as if (ret) instead of using if (ret != 0) Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 1d48214..8a269fd 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -394,7 +394,7 @@ static void handle_get_ip_address(struct wilc_vif *vif, u8 idx) if (memcmp(get_ip[idx], set_ip[idx], IP_ALEN) != 0) wilc_setup_ipaddress(vif, set_ip[idx], idx); - if (ret != 0) + if (ret) netdev_err(vif->ndev, "Failed to get IP address\n"); } -- cgit v0.10.2 From 93dc5d5583e58e8cfa0355826396ac757e93f468 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 2 May 2016 19:47:53 +0900 Subject: staging: wilc1000: change handle_get_mac_address's return type to void When handle_get_mac_address is called in hostIFthread that is a kernel thread, it is not checked return type of this function. This patch changes return type to void and removes braces if statement due to have a single statement. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 8a269fd..23bbaa8 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -398,8 +398,8 @@ static void handle_get_ip_address(struct wilc_vif *vif, u8 idx) netdev_err(vif->ndev, "Failed to get IP address\n"); } -static s32 handle_get_mac_address(struct wilc_vif *vif, - struct get_mac_addr *get_mac_addr) +static void handle_get_mac_address(struct wilc_vif *vif, + struct get_mac_addr *get_mac_addr) { s32 result = 0; struct wid wid; @@ -412,13 +412,9 @@ static s32 handle_get_mac_address(struct wilc_vif *vif, result = wilc_send_config_pkt(vif, GET_CFG, &wid, 1, wilc_get_vif_idx(vif)); - if (result) { + if (result) netdev_err(vif->ndev, "Failed to get mac address\n"); - result = -EFAULT; - } complete(&hif_wait_response); - - return result; } static s32 handle_cfg_param(struct wilc_vif *vif, -- cgit v0.10.2 From 098bd3fd065390f0ea1323a7049b3e291e3aefca Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 2 May 2016 19:47:54 +0900 Subject: staging: wilc1000: change data type of result in handle_get_mac_address This patch changes data type of result variable from s32 to int. result is used to get return value from wilc_send_config_pkt that has return type of int. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 23bbaa8..71d6b66 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -401,7 +401,7 @@ static void handle_get_ip_address(struct wilc_vif *vif, u8 idx) static void handle_get_mac_address(struct wilc_vif *vif, struct get_mac_addr *get_mac_addr) { - s32 result = 0; + int result = 0; struct wid wid; wid.id = (u16)WID_MAC_ADDR; -- cgit v0.10.2 From beba2ab84e60a548e6e53f692cb011c58f255707 Mon Sep 17 00:00:00 2001 From: Chaehyun Lim Date: Mon, 2 May 2016 19:47:55 +0900 Subject: staging: wilc1000: rename result in handle_get_mac_address This patch renames result to ret that is used to get return value from wilc_send_config_pkt. Some handle_*() functions are used as result, others are used as ret. It will be changed as ret in all handle_*() functions to match variable name. Signed-off-by: Chaehyun Lim Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 71d6b66..9535842 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -401,7 +401,7 @@ static void handle_get_ip_address(struct wilc_vif *vif, u8 idx) static void handle_get_mac_address(struct wilc_vif *vif, struct get_mac_addr *get_mac_addr) { - int result = 0; + int ret = 0; struct wid wid; wid.id = (u16)WID_MAC_ADDR; @@ -409,10 +409,10 @@ static void handle_get_mac_address(struct wilc_vif *vif, wid.val = get_mac_addr->mac_addr; wid.size = ETH_ALEN; - result = wilc_send_config_pkt(vif, GET_CFG, &wid, 1, - wilc_get_vif_idx(vif)); + ret = wilc_send_config_pkt(vif, GET_CFG, &wid, 1, + wilc_get_vif_idx(vif)); - if (result) + if (ret) netdev_err(vif->ndev, "Failed to get mac address\n"); complete(&hif_wait_response); } -- cgit v0.10.2 From a28e32e061ac8786898c9499bd14bc074d8a0e6c Mon Sep 17 00:00:00 2001 From: Manu Kumar Date: Sun, 1 May 2016 16:38:32 -0700 Subject: staging: skein: cleanup: fixed new lines Added lines between functions in skein_block.c and removed unneeded lines in skein_block.c Signed-off-by: Manu Kumar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/skein/skein_api.c b/drivers/staging/skein/skein_api.c index 36f849f..e23cb16 100644 --- a/drivers/staging/skein/skein_api.c +++ b/drivers/staging/skein/skein_api.c @@ -165,7 +165,6 @@ int skein_update(struct skein_ctx *ctx, const u8 *msg, break; } return ret; - } int skein_update_bits(struct skein_ctx *ctx, const u8 *msg, diff --git a/drivers/staging/skein/skein_block.c b/drivers/staging/skein/skein_block.c index a1a3c39..1155758 100644 --- a/drivers/staging/skein/skein_block.c +++ b/drivers/staging/skein/skein_block.c @@ -465,6 +465,7 @@ size_t skein_256_process_block_code_size(void) return ((u8 *) skein_256_process_block_code_size) - ((u8 *) skein_256_process_block); } + unsigned int skein_256_unroll_cnt(void) { return SKEIN_UNROLL_256; @@ -547,7 +548,6 @@ void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blk_ptr, for (r = 1; r < (SKEIN_UNROLL_512 ? 2 * RCNT : 2); r += (SKEIN_UNROLL_512 ? 2 * SKEIN_UNROLL_512 : 1)) { - R512_8_ROUNDS(0); #if R512_UNROLL_R(1) @@ -616,6 +616,7 @@ size_t skein_512_process_block_code_size(void) return ((u8 *) skein_512_process_block_code_size) - ((u8 *) skein_512_process_block); } + unsigned int skein_512_unroll_cnt(void) { return SKEIN_UNROLL_512; @@ -780,6 +781,7 @@ size_t skein_1024_process_block_code_size(void) return ((u8 *) skein_1024_process_block_code_size) - ((u8 *) skein_1024_process_block); } + unsigned int skein_1024_unroll_cnt(void) { return SKEIN_UNROLL_1024; -- cgit v0.10.2 From 5b05c1e243d594860350657988d735522f0321f4 Mon Sep 17 00:00:00 2001 From: Manu Kumar Date: Sun, 1 May 2016 16:38:33 -0700 Subject: staging: skein: cleanup: Fixed operator whitespace added operator white space and parentheses for readability Signed-off-by: Manu Kumar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/skein/skein_base.c b/drivers/staging/skein/skein_base.c index dde6f7e..a4c3c0ce 100644 --- a/drivers/staging/skein/skein_base.c +++ b/drivers/staging/skein/skein_base.c @@ -230,8 +230,8 @@ int skein_256_final(struct skein_256_ctx *ctx, u8 *hash_val) if (n >= SKEIN_256_BLOCK_BYTES) n = SKEIN_256_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val + i * SKEIN_256_BLOCK_BYTES, - ctx->x, n); + skein_put64_lsb_first(hash_val + (i * SKEIN_256_BLOCK_BYTES), + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -457,8 +457,8 @@ int skein_512_final(struct skein_512_ctx *ctx, u8 *hash_val) if (n >= SKEIN_512_BLOCK_BYTES) n = SKEIN_512_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val + i * SKEIN_512_BLOCK_BYTES, - ctx->x, n); + skein_put64_lsb_first(hash_val + (i * SKEIN_512_BLOCK_BYTES), + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -679,8 +679,8 @@ int skein_1024_final(struct skein_1024_ctx *ctx, u8 *hash_val) if (n >= SKEIN_1024_BLOCK_BYTES) n = SKEIN_1024_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val + i * SKEIN_1024_BLOCK_BYTES, - ctx->x, n); + skein_put64_lsb_first(hash_val + (i * SKEIN_1024_BLOCK_BYTES), + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -786,8 +786,8 @@ int skein_256_output(struct skein_256_ctx *ctx, u8 *hash_val) if (n >= SKEIN_256_BLOCK_BYTES) n = SKEIN_256_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val + i * SKEIN_256_BLOCK_BYTES, - ctx->x, n); + skein_put64_lsb_first(hash_val + (i * SKEIN_256_BLOCK_BYTES), + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -823,8 +823,8 @@ int skein_512_output(struct skein_512_ctx *ctx, u8 *hash_val) if (n >= SKEIN_512_BLOCK_BYTES) n = SKEIN_512_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val + i * SKEIN_512_BLOCK_BYTES, - ctx->x, n); + skein_put64_lsb_first(hash_val + (i * SKEIN_512_BLOCK_BYTES), + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -860,8 +860,8 @@ int skein_1024_output(struct skein_1024_ctx *ctx, u8 *hash_val) if (n >= SKEIN_1024_BLOCK_BYTES) n = SKEIN_1024_BLOCK_BYTES; /* "output" the ctr mode bytes */ - skein_put64_lsb_first(hash_val + i * SKEIN_1024_BLOCK_BYTES, - ctx->x, n); + skein_put64_lsb_first(hash_val + (i * SKEIN_1024_BLOCK_BYTES), + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } diff --git a/drivers/staging/skein/skein_block.c b/drivers/staging/skein/skein_block.c index 1155758..7a8128a 100644 --- a/drivers/staging/skein/skein_block.c +++ b/drivers/staging/skein/skein_block.c @@ -326,10 +326,10 @@ R1024(00, 09, 02, 13, 06, 11, 04, 15, 10, 07, 12, 03, 14, \ 05, 08, 01, R1024_5, 8 * (R) + 6); \ R1024(00, 07, 02, 05, 04, 03, 06, 01, 12, 15, 14, 13, 08, \ - 11, 10, 09, R1024_6, 8 * (R) + 7); \ + 11, 10, 09, R1024_6, 8 * (R) + 7); \ R1024(00, 15, 02, 11, 06, 13, 04, 09, 14, 01, 08, 05, 10, \ 03, 12, 07, R1024_7, 8 * (R) + 8); \ - I1024(2 * (R) + 1); \ + I1024(2 * (R) + 1); \ } while (0) #define R1024_UNROLL_R(NN) \ @@ -353,7 +353,7 @@ void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blk_ptr, size_t r; #if SKEIN_UNROLL_256 /* key schedule: chaining vars + tweak + "rot"*/ - u64 kw[WCNT + 4 + RCNT * 2]; + u64 kw[WCNT + 4 + (RCNT * 2)]; #else /* key schedule words : chaining vars + tweak */ u64 kw[WCNT + 4]; @@ -635,7 +635,7 @@ void skein_1024_process_block(struct skein_1024_ctx *ctx, const u8 *blk_ptr, size_t r; #if (SKEIN_UNROLL_1024 != 0) /* key sched: chaining vars + tweak + "rot" */ - u64 kw[WCNT + 4 + RCNT * 2]; + u64 kw[WCNT + 4 + (RCNT * 2)]; #else /* key schedule words : chaining vars + tweak */ u64 kw[WCNT + 4]; -- cgit v0.10.2 From e602a80822a111b6a476ec14e6d1065ac27f11c1 Mon Sep 17 00:00:00 2001 From: Manu Kumar Date: Sun, 1 May 2016 16:38:34 -0700 Subject: staging: skein: cleanup: removed unnecessary cast spaces Spaces after casts are removed Signed-off-by: Manu Kumar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/skein/skein_api.c b/drivers/staging/skein/skein_api.c index e23cb16..cab26e7 100644 --- a/drivers/staging/skein/skein_api.c +++ b/drivers/staging/skein/skein_api.c @@ -209,7 +209,7 @@ int skein_update_bits(struct skein_ctx *ctx, const u8 *msg, /* internal sanity check: there IS a partial byte in the buffer! */ skein_assert(length != 0); /* partial byte bit mask */ - mask = (u8) (1u << (7 - (msg_bit_cnt & 7))); + mask = (u8)(1u << (7 - (msg_bit_cnt & 7))); /* apply bit padding on final byte (in the buffer) */ up[length - 1] = (u8)((up[length - 1] & (0 - mask)) | mask); diff --git a/drivers/staging/skein/skein_base.c b/drivers/staging/skein/skein_base.c index a4c3c0ce..8cafbed 100644 --- a/drivers/staging/skein/skein_base.c +++ b/drivers/staging/skein/skein_base.c @@ -221,7 +221,7 @@ int skein_256_final(struct skein_256_ctx *ctx, u8 *hash_val) memcpy(x, ctx->x, sizeof(x)); for (i = 0; i * SKEIN_256_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ - ((u64 *)ctx->b)[0] = skein_swap64((u64) i); + ((u64 *)ctx->b)[0] = skein_swap64((u64)i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_256_process_block(ctx, ctx->b, 1, sizeof(u64)); @@ -448,7 +448,7 @@ int skein_512_final(struct skein_512_ctx *ctx, u8 *hash_val) memcpy(x, ctx->x, sizeof(x)); for (i = 0; i * SKEIN_512_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ - ((u64 *)ctx->b)[0] = skein_swap64((u64) i); + ((u64 *)ctx->b)[0] = skein_swap64((u64)i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_512_process_block(ctx, ctx->b, 1, sizeof(u64)); @@ -670,7 +670,7 @@ int skein_1024_final(struct skein_1024_ctx *ctx, u8 *hash_val) memcpy(x, ctx->x, sizeof(x)); for (i = 0; i * SKEIN_1024_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ - ((u64 *)ctx->b)[0] = skein_swap64((u64) i); + ((u64 *)ctx->b)[0] = skein_swap64((u64)i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_1024_process_block(ctx, ctx->b, 1, sizeof(u64)); @@ -777,7 +777,7 @@ int skein_256_output(struct skein_256_ctx *ctx, u8 *hash_val) memcpy(x, ctx->x, sizeof(x)); for (i = 0; i * SKEIN_256_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ - ((u64 *)ctx->b)[0] = skein_swap64((u64) i); + ((u64 *)ctx->b)[0] = skein_swap64((u64)i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_256_process_block(ctx, ctx->b, 1, sizeof(u64)); @@ -814,7 +814,7 @@ int skein_512_output(struct skein_512_ctx *ctx, u8 *hash_val) memcpy(x, ctx->x, sizeof(x)); for (i = 0; i * SKEIN_512_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ - ((u64 *)ctx->b)[0] = skein_swap64((u64) i); + ((u64 *)ctx->b)[0] = skein_swap64((u64)i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_512_process_block(ctx, ctx->b, 1, sizeof(u64)); @@ -851,7 +851,7 @@ int skein_1024_output(struct skein_1024_ctx *ctx, u8 *hash_val) memcpy(x, ctx->x, sizeof(x)); for (i = 0; i * SKEIN_1024_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ - ((u64 *)ctx->b)[0] = skein_swap64((u64) i); + ((u64 *)ctx->b)[0] = skein_swap64((u64)i); skein_start_new_type(ctx, OUT_FINAL); /* run "counter mode" */ skein_1024_process_block(ctx, ctx->b, 1, sizeof(u64)); diff --git a/drivers/staging/skein/skein_base.h b/drivers/staging/skein/skein_base.h index 6289e1e..dc464f3 100644 --- a/drivers/staging/skein/skein_base.h +++ b/drivers/staging/skein/skein_base.h @@ -157,13 +157,13 @@ int skein_1024_output(struct skein_1024_ctx *ctx, u8 *hash_val); #define SKEIN_T1_POS_FINAL SKEIN_T1_BIT(127) /* 127 final blk flag */ /* tweak word tweak[1]: flag bit definition(s) */ -#define SKEIN_T1_FLAG_FIRST (((u64) 1) << SKEIN_T1_POS_FIRST) -#define SKEIN_T1_FLAG_FINAL (((u64) 1) << SKEIN_T1_POS_FINAL) -#define SKEIN_T1_FLAG_BIT_PAD (((u64) 1) << SKEIN_T1_POS_BIT_PAD) +#define SKEIN_T1_FLAG_FIRST (((u64)1) << SKEIN_T1_POS_FIRST) +#define SKEIN_T1_FLAG_FINAL (((u64)1) << SKEIN_T1_POS_FINAL) +#define SKEIN_T1_FLAG_BIT_PAD (((u64)1) << SKEIN_T1_POS_BIT_PAD) /* tweak word tweak[1]: tree level bit field mask */ #define SKEIN_T1_TREE_LVL_MASK (((u64)0x7F) << SKEIN_T1_POS_TREE_LVL) -#define SKEIN_T1_TREE_LEVEL(n) (((u64) (n)) << SKEIN_T1_POS_TREE_LVL) +#define SKEIN_T1_TREE_LEVEL(n) (((u64)(n)) << SKEIN_T1_POS_TREE_LVL) /* tweak word tweak[1]: block type field */ #define SKEIN_BLK_TYPE_KEY (0) /* key, for MAC and KDF */ @@ -176,7 +176,7 @@ int skein_1024_output(struct skein_1024_ctx *ctx, u8 *hash_val); #define SKEIN_BLK_TYPE_OUT (63) /* output stage */ #define SKEIN_BLK_TYPE_MASK (63) /* bit field mask */ -#define SKEIN_T1_BLK_TYPE(T) (((u64) (SKEIN_BLK_TYPE_##T)) << \ +#define SKEIN_T1_BLK_TYPE(T) (((u64)(SKEIN_BLK_TYPE_##T)) << \ SKEIN_T1_POS_BLK_TYPE) #define SKEIN_T1_BLK_TYPE_KEY SKEIN_T1_BLK_TYPE(KEY) /* for MAC and KDF */ #define SKEIN_T1_BLK_TYPE_CFG SKEIN_T1_BLK_TYPE(CFG) /* config block */ @@ -199,7 +199,7 @@ int skein_1024_output(struct skein_1024_ctx *ctx, u8 *hash_val); #define SKEIN_ID_STRING_LE (0x33414853) /* "SHA3" (little-endian)*/ #endif -#define SKEIN_MK_64(hi32, lo32) ((lo32) + (((u64) (hi32)) << 32)) +#define SKEIN_MK_64(hi32, lo32) ((lo32) + (((u64)(hi32)) << 32)) #define SKEIN_SCHEMA_VER SKEIN_MK_64(SKEIN_VERSION, SKEIN_ID_STRING_LE) #define SKEIN_KS_PARITY SKEIN_MK_64(0x1BD11BDA, 0xA9FC1A22) diff --git a/drivers/staging/skein/skein_block.c b/drivers/staging/skein/skein_block.c index 7a8128a..59a0a8a8 100644 --- a/drivers/staging/skein/skein_block.c +++ b/drivers/staging/skein/skein_block.c @@ -462,8 +462,8 @@ void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blk_ptr, #if defined(SKEIN_CODE_SIZE) || defined(SKEIN_PERF) size_t skein_256_process_block_code_size(void) { - return ((u8 *) skein_256_process_block_code_size) - - ((u8 *) skein_256_process_block); + return ((u8 *)skein_256_process_block_code_size) - + ((u8 *)skein_256_process_block); } unsigned int skein_256_unroll_cnt(void) @@ -613,8 +613,8 @@ void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blk_ptr, #if defined(SKEIN_CODE_SIZE) || defined(SKEIN_PERF) size_t skein_512_process_block_code_size(void) { - return ((u8 *) skein_512_process_block_code_size) - - ((u8 *) skein_512_process_block); + return ((u8 *)skein_512_process_block_code_size) - + ((u8 *)skein_512_process_block); } unsigned int skein_512_unroll_cnt(void) @@ -778,8 +778,8 @@ void skein_1024_process_block(struct skein_1024_ctx *ctx, const u8 *blk_ptr, #if defined(SKEIN_CODE_SIZE) || defined(SKEIN_PERF) size_t skein_1024_process_block_code_size(void) { - return ((u8 *) skein_1024_process_block_code_size) - - ((u8 *) skein_1024_process_block); + return ((u8 *)skein_1024_process_block_code_size) - + ((u8 *)skein_1024_process_block); } unsigned int skein_1024_unroll_cnt(void) -- cgit v0.10.2 From 43bb50ec36519f9b21d4f55da0154b00e9fe06b7 Mon Sep 17 00:00:00 2001 From: Manu Kumar Date: Sun, 1 May 2016 16:38:35 -0700 Subject: staging: skein: cleanup: align code to parentheses Align wrapped lines to parentheses (if applicable). Signed-off-by: Manu Kumar Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/skein/skein_base.c b/drivers/staging/skein/skein_base.c index 8cafbed..c24a573 100644 --- a/drivers/staging/skein/skein_base.c +++ b/drivers/staging/skein/skein_base.c @@ -231,7 +231,7 @@ int skein_256_final(struct skein_256_ctx *ctx, u8 *hash_val) n = SKEIN_256_BLOCK_BYTES; /* "output" the ctr mode bytes */ skein_put64_lsb_first(hash_val + (i * SKEIN_256_BLOCK_BYTES), - ctx->x, n); + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -458,7 +458,7 @@ int skein_512_final(struct skein_512_ctx *ctx, u8 *hash_val) n = SKEIN_512_BLOCK_BYTES; /* "output" the ctr mode bytes */ skein_put64_lsb_first(hash_val + (i * SKEIN_512_BLOCK_BYTES), - ctx->x, n); + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -680,7 +680,7 @@ int skein_1024_final(struct skein_1024_ctx *ctx, u8 *hash_val) n = SKEIN_1024_BLOCK_BYTES; /* "output" the ctr mode bytes */ skein_put64_lsb_first(hash_val + (i * SKEIN_1024_BLOCK_BYTES), - ctx->x, n); + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -787,7 +787,7 @@ int skein_256_output(struct skein_256_ctx *ctx, u8 *hash_val) n = SKEIN_256_BLOCK_BYTES; /* "output" the ctr mode bytes */ skein_put64_lsb_first(hash_val + (i * SKEIN_256_BLOCK_BYTES), - ctx->x, n); + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -824,7 +824,7 @@ int skein_512_output(struct skein_512_ctx *ctx, u8 *hash_val) n = SKEIN_512_BLOCK_BYTES; /* "output" the ctr mode bytes */ skein_put64_lsb_first(hash_val + (i * SKEIN_512_BLOCK_BYTES), - ctx->x, n); + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } @@ -861,7 +861,7 @@ int skein_1024_output(struct skein_1024_ctx *ctx, u8 *hash_val) n = SKEIN_1024_BLOCK_BYTES; /* "output" the ctr mode bytes */ skein_put64_lsb_first(hash_val + (i * SKEIN_1024_BLOCK_BYTES), - ctx->x, n); + ctx->x, n); /* restore the counter mode key for next time */ memcpy(ctx->x, x, sizeof(x)); } -- cgit v0.10.2 From 1a8da31b6cbca7cd0a6b6ca738fa420eb2ee899a Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:34 -0700 Subject: staging: comedi: mite: rename 'struct mite_struct' Rename this struct to simply 'mite'. The current name is a bit redundant. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 1f54cd0..4bfdbf0 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -219,9 +219,9 @@ static void mite_dma_reset(struct mite_channel *mite_chan) mite_chan->mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); } -struct mite_struct *mite_alloc(struct pci_dev *pcidev) +struct mite *mite_alloc(struct pci_dev *pcidev) { - struct mite_struct *mite; + struct mite *mite; unsigned int i; mite = kzalloc(sizeof(*mite), GFP_KERNEL); @@ -255,8 +255,7 @@ static void dump_chip_signature(u32 csigr_bits) CSIGR_TO_WINS(csigr_bits), CSIGR_TO_IOWINS(csigr_bits)); } -static unsigned int mite_fifo_size(struct mite_struct *mite, - unsigned int channel) +static unsigned int mite_fifo_size(struct mite *mite, unsigned int channel) { unsigned int fcr_bits = readl(mite->mite_io_addr + MITE_FCR(channel)); unsigned int empty_count = (fcr_bits >> 16) & 0xff; @@ -266,7 +265,7 @@ static unsigned int mite_fifo_size(struct mite_struct *mite, } int mite_setup2(struct comedi_device *dev, - struct mite_struct *mite, bool use_win1) + struct mite *mite, bool use_win1) { resource_size_t daq_phys_addr; unsigned long length; @@ -344,7 +343,7 @@ int mite_setup2(struct comedi_device *dev, } EXPORT_SYMBOL_GPL(mite_setup2); -void mite_detach(struct mite_struct *mite) +void mite_detach(struct mite *mite) { if (!mite) return; @@ -356,7 +355,7 @@ void mite_detach(struct mite_struct *mite) } EXPORT_SYMBOL_GPL(mite_detach); -struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite_struct *mite) +struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite *mite) { struct mite_dma_descriptor_ring *ring = kmalloc(sizeof(struct mite_dma_descriptor_ring), GFP_KERNEL); @@ -392,7 +391,7 @@ void mite_free_ring(struct mite_dma_descriptor_ring *ring) EXPORT_SYMBOL_GPL(mite_free_ring); struct mite_channel * -mite_request_channel_in_range(struct mite_struct *mite, +mite_request_channel_in_range(struct mite *mite, struct mite_dma_descriptor_ring *ring, unsigned int min_channel, unsigned int max_channel) @@ -421,7 +420,7 @@ EXPORT_SYMBOL_GPL(mite_request_channel_in_range); void mite_release_channel(struct mite_channel *mite_chan) { - struct mite_struct *mite = mite_chan->mite; + struct mite *mite = mite_chan->mite; unsigned long flags; /* spin lock to prevent races with mite_request_channel */ @@ -448,7 +447,7 @@ EXPORT_SYMBOL_GPL(mite_release_channel); void mite_dma_arm(struct mite_channel *mite_chan) { - struct mite_struct *mite = mite_chan->mite; + struct mite *mite = mite_chan->mite; int chor; unsigned long flags; @@ -566,8 +565,8 @@ EXPORT_SYMBOL_GPL(mite_init_ring_descriptors); void mite_prep_dma(struct mite_channel *mite_chan, unsigned int num_device_bits, unsigned int num_memory_bits) { + struct mite *mite = mite_chan->mite; unsigned int chcr, mcr, dcr, lkcr; - struct mite_struct *mite = mite_chan->mite; mite_dma_reset(mite_chan); @@ -650,14 +649,14 @@ EXPORT_SYMBOL_GPL(mite_prep_dma); static u32 mite_device_bytes_transferred(struct mite_channel *mite_chan) { - struct mite_struct *mite = mite_chan->mite; + struct mite *mite = mite_chan->mite; return readl(mite->mite_io_addr + MITE_DAR(mite_chan->channel)); } u32 mite_bytes_in_transit(struct mite_channel *mite_chan) { - struct mite_struct *mite = mite_chan->mite; + struct mite *mite = mite_chan->mite; return readl(mite->mite_io_addr + MITE_FCR(mite_chan->channel)) & 0x000000FF; @@ -702,7 +701,7 @@ static u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan) void mite_dma_disarm(struct mite_channel *mite_chan) { - struct mite_struct *mite = mite_chan->mite; + struct mite *mite = mite_chan->mite; unsigned int chor; /* disarm */ @@ -798,7 +797,7 @@ EXPORT_SYMBOL_GPL(mite_sync_dma); static unsigned int mite_get_status(struct mite_channel *mite_chan) { - struct mite_struct *mite = mite_chan->mite; + struct mite *mite = mite_chan->mite; unsigned int status; unsigned long flags; @@ -818,7 +817,7 @@ void mite_ack_linkc(struct mite_channel *mite_chan, struct comedi_subdevice *s, bool sync) { - struct mite_struct *mite = mite_chan->mite; + struct mite *mite = mite_chan->mite; unsigned int status; status = mite_get_status(mite_chan); @@ -840,7 +839,7 @@ EXPORT_SYMBOL_GPL(mite_ack_linkc); int mite_done(struct mite_channel *mite_chan) { - struct mite_struct *mite = mite_chan->mite; + struct mite *mite = mite_chan->mite; unsigned long flags; int done; diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 1f8959d..93d6a32 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -43,14 +43,14 @@ struct mite_dma_descriptor_ring { }; struct mite_channel { - struct mite_struct *mite; + struct mite *mite; unsigned int channel; int dir; int done; struct mite_dma_descriptor_ring *ring; }; -struct mite_struct { +struct mite { struct pci_dev *pcidev; void __iomem *mite_io_addr; struct mite_channel channels[MAX_MITE_DMA_CHANNELS]; @@ -61,26 +61,26 @@ struct mite_struct { spinlock_t lock; }; -struct mite_struct *mite_alloc(struct pci_dev *pcidev); +struct mite *mite_alloc(struct pci_dev *); -int mite_setup2(struct comedi_device *, struct mite_struct *, bool use_win1); +int mite_setup2(struct comedi_device *, struct mite *, bool use_win1); static inline int mite_setup(struct comedi_device *dev, - struct mite_struct *mite) + struct mite *mite) { return mite_setup2(dev, mite, false); } -void mite_detach(struct mite_struct *mite); -struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite_struct *mite); +void mite_detach(struct mite *); +struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite *); void mite_free_ring(struct mite_dma_descriptor_ring *ring); struct mite_channel * -mite_request_channel_in_range(struct mite_struct *mite, +mite_request_channel_in_range(struct mite *, struct mite_dma_descriptor_ring *ring, unsigned int min_channel, unsigned int max_channel); static inline struct mite_channel * -mite_request_channel(struct mite_struct *mite, +mite_request_channel(struct mite *mite, struct mite_dma_descriptor_ring *ring) { return mite_request_channel_in_range(mite, ring, 0, diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index e745eb9..7cc7e28 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -253,7 +253,7 @@ static const struct ni_660x_board ni_660x_boards[] = { NI660X_COUNTERS_PER_CHIP) struct ni_660x_private { - struct mite_struct *mite; + struct mite *mite; struct ni_gpct_device *counter_dev; struct mite_dma_descriptor_ring *mite_rings[NI660X_MAX_CHIPS][NI660X_COUNTERS_PER_CHIP]; diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index 4a34da5..9ed8bb8 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -284,7 +284,7 @@ static const struct nidio_board nidio_boards[] = { }; struct nidio96_private { - struct mite_struct *mite; + struct mite *mite; int boardtype; int dio; unsigned short OpModeBits; diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h index 334a2e1..6b46a19 100644 --- a/drivers/staging/comedi/drivers/ni_stc.h +++ b/drivers/staging/comedi/drivers/ni_stc.h @@ -1033,7 +1033,7 @@ struct ni_private { u8 eeprom_buffer[M_SERIES_EEPROM_SIZE]; __be32 serial_number; - struct mite_struct *mite; + struct mite *mite; struct mite_channel *ai_mite_chan; struct mite_channel *ao_mite_chan; struct mite_channel *cdo_mite_chan; -- cgit v0.10.2 From f5d077cd207155b3bbd66e7765d24732591a392b Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:35 -0700 Subject: staging: comedi: mite: rename 'struct mite_dma_descriptor' Rename this struct to 'mite_dma_desc' to help shorten the long lines. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 4bfdbf0..127a86e 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -380,7 +380,7 @@ void mite_free_ring(struct mite_dma_descriptor_ring *ring) if (ring->descriptors) { dma_free_coherent(ring->hw_dev, ring->n_links * - sizeof(struct mite_dma_descriptor), + sizeof(struct mite_dma_desc), ring->descriptors, ring->descriptors_dma_addr); } @@ -477,7 +477,7 @@ int mite_buf_change(struct mite_dma_descriptor_ring *ring, if (ring->descriptors) { dma_free_coherent(ring->hw_dev, ring->n_links * - sizeof(struct mite_dma_descriptor), + sizeof(struct mite_dma_desc), ring->descriptors, ring->descriptors_dma_addr); } @@ -492,7 +492,7 @@ int mite_buf_change(struct mite_dma_descriptor_ring *ring, ring->descriptors = dma_alloc_coherent(ring->hw_dev, - n_links * sizeof(struct mite_dma_descriptor), + n_links * sizeof(struct mite_dma_desc), &ring->descriptors_dma_addr, GFP_KERNEL); if (!ring->descriptors) { dev_err(s->device->class_dev, @@ -537,7 +537,7 @@ int mite_init_ring_descriptors(struct mite_dma_descriptor_ring *ring, cpu_to_le32(async->buf_map->page_list[i].dma_addr); ring->descriptors[i].next = cpu_to_le32(ring->descriptors_dma_addr + - (i + 1) * sizeof(struct mite_dma_descriptor)); + (i + 1) * sizeof(struct mite_dma_desc)); } /* the last link is either a remainder or was a full link. */ diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 93d6a32..c42438f 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -28,7 +28,7 @@ struct comedi_subdevice; struct device; struct pci_dev; -struct mite_dma_descriptor { +struct mite_dma_desc { __le32 count; __le32 addr; __le32 next; @@ -38,7 +38,7 @@ struct mite_dma_descriptor { struct mite_dma_descriptor_ring { struct device *hw_dev; unsigned int n_links; - struct mite_dma_descriptor *descriptors; + struct mite_dma_desc *descriptors; dma_addr_t descriptors_dma_addr; }; -- cgit v0.10.2 From 19d9212ef93fca5be07e6b8554a00dcb82124c7d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:36 -0700 Subject: staging: comedi: mite: rename 'struct mite_dma_descriptor_ring' Rename this name to 'mite_ring' to help shorten the long lines. In the ni_660x driver, also shorten the private data member 'mite_rings' to simply 'ring'. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 127a86e..c616587 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -355,11 +355,11 @@ void mite_detach(struct mite *mite) } EXPORT_SYMBOL_GPL(mite_detach); -struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite *mite) +struct mite_ring *mite_alloc_ring(struct mite *mite) { - struct mite_dma_descriptor_ring *ring = - kmalloc(sizeof(struct mite_dma_descriptor_ring), GFP_KERNEL); + struct mite_ring *ring; + ring = kmalloc(sizeof(*ring), GFP_KERNEL); if (!ring) return NULL; ring->hw_dev = get_device(&mite->pcidev->dev); @@ -374,7 +374,7 @@ struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite *mite) }; EXPORT_SYMBOL_GPL(mite_alloc_ring); -void mite_free_ring(struct mite_dma_descriptor_ring *ring) +void mite_free_ring(struct mite_ring *ring) { if (ring) { if (ring->descriptors) { @@ -390,11 +390,10 @@ void mite_free_ring(struct mite_dma_descriptor_ring *ring) }; EXPORT_SYMBOL_GPL(mite_free_ring); -struct mite_channel * -mite_request_channel_in_range(struct mite *mite, - struct mite_dma_descriptor_ring *ring, - unsigned int min_channel, - unsigned int max_channel) +struct mite_channel *mite_request_channel_in_range(struct mite *mite, + struct mite_ring *ring, + unsigned int min_channel, + unsigned int max_channel) { int i; unsigned long flags; @@ -468,7 +467,7 @@ EXPORT_SYMBOL_GPL(mite_dma_arm); /**************************************/ -int mite_buf_change(struct mite_dma_descriptor_ring *ring, +int mite_buf_change(struct mite_ring *ring, struct comedi_subdevice *s) { struct comedi_async *async = s->async; @@ -512,7 +511,7 @@ EXPORT_SYMBOL_GPL(mite_buf_change); * DMA data buffer. A command may call this function later to re-initialize and * shorten the amount of memory that will be transferred. */ -int mite_init_ring_descriptors(struct mite_dma_descriptor_ring *ring, +int mite_init_ring_descriptors(struct mite_ring *ring, struct comedi_subdevice *s, unsigned int nbytes) { diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index c42438f..5317d15 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -35,7 +35,7 @@ struct mite_dma_desc { u32 dar; }; -struct mite_dma_descriptor_ring { +struct mite_ring { struct device *hw_dev; unsigned int n_links; struct mite_dma_desc *descriptors; @@ -47,7 +47,7 @@ struct mite_channel { unsigned int channel; int dir; int done; - struct mite_dma_descriptor_ring *ring; + struct mite_ring *ring; }; struct mite { @@ -72,16 +72,15 @@ static inline int mite_setup(struct comedi_device *dev, } void mite_detach(struct mite *); -struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite *); -void mite_free_ring(struct mite_dma_descriptor_ring *ring); -struct mite_channel * -mite_request_channel_in_range(struct mite *, - struct mite_dma_descriptor_ring *ring, - unsigned int min_channel, - unsigned int max_channel); -static inline struct mite_channel * -mite_request_channel(struct mite *mite, - struct mite_dma_descriptor_ring *ring) +struct mite_ring *mite_alloc_ring(struct mite *); +void mite_free_ring(struct mite_ring *ring); +struct mite_channel *mite_request_channel_in_range(struct mite *, + struct mite_ring *, + unsigned int min_channel, + unsigned int max_channel); + +static inline struct mite_channel *mite_request_channel(struct mite *mite, + struct mite_ring *ring) { return mite_request_channel_in_range(mite, ring, 0, mite->num_channels - 1); @@ -99,10 +98,8 @@ int mite_done(struct mite_channel *mite_chan); void mite_prep_dma(struct mite_channel *mite_chan, unsigned int num_device_bits, unsigned int num_memory_bits); -int mite_buf_change(struct mite_dma_descriptor_ring *ring, - struct comedi_subdevice *s); -int mite_init_ring_descriptors(struct mite_dma_descriptor_ring *ring, - struct comedi_subdevice *s, +int mite_buf_change(struct mite_ring *, struct comedi_subdevice *); +int mite_init_ring_descriptors(struct mite_ring *, struct comedi_subdevice *, unsigned int nbytes); /* diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 7cc7e28..041ea67 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -255,8 +255,7 @@ static const struct ni_660x_board ni_660x_boards[] = { struct ni_660x_private { struct mite *mite; struct ni_gpct_device *counter_dev; - struct mite_dma_descriptor_ring - *mite_rings[NI660X_MAX_CHIPS][NI660X_COUNTERS_PER_CHIP]; + struct mite_ring *ring[NI660X_MAX_CHIPS][NI660X_COUNTERS_PER_CHIP]; /* protects mite channel request/release */ spinlock_t mite_channel_lock; /* prevents races between interrupt and comedi_poll */ @@ -339,12 +338,12 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev, enum comedi_io_direction direction) { struct ni_660x_private *devpriv = dev->private; - struct mite_dma_descriptor_ring *ring; + struct mite_ring *ring; struct mite_channel *mite_chan; unsigned long flags; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); - ring = devpriv->mite_rings[counter->chip_index][counter->counter_index]; + ring = devpriv->ring[counter->chip_index][counter->counter_index]; mite_chan = mite_request_channel(devpriv->mite, ring); if (!mite_chan) { spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags); @@ -470,10 +469,10 @@ static int ni_660x_buf_change(struct comedi_device *dev, { struct ni_660x_private *devpriv = dev->private; struct ni_gpct *counter = s->private; - struct mite_dma_descriptor_ring *ring; + struct mite_ring *ring; int ret; - ring = devpriv->mite_rings[counter->chip_index][counter->counter_index]; + ring = devpriv->ring[counter->chip_index][counter->counter_index]; ret = mite_buf_change(ring, s); if (ret < 0) return ret; @@ -507,9 +506,8 @@ static int ni_660x_alloc_mite_rings(struct comedi_device *dev) for (i = 0; i < board->n_chips; ++i) { for (j = 0; j < NI660X_COUNTERS_PER_CHIP; ++j) { - devpriv->mite_rings[i][j] = - mite_alloc_ring(devpriv->mite); - if (!devpriv->mite_rings[i][j]) + devpriv->ring[i][j] = mite_alloc_ring(devpriv->mite); + if (!devpriv->ring[i][j]) return -ENOMEM; } } @@ -525,7 +523,7 @@ static void ni_660x_free_mite_rings(struct comedi_device *dev) for (i = 0; i < board->n_chips; ++i) { for (j = 0; j < NI660X_COUNTERS_PER_CHIP; ++j) - mite_free_ring(devpriv->mite_rings[i][j]); + mite_free_ring(devpriv->ring[i][j]); } } diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index dc024f2..8dabb19 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1961,7 +1961,7 @@ static unsigned int ni_timer_to_ns(const struct comedi_device *dev, int timer) return devpriv->clock_ns * (timer + 1); } -static void ni_cmd_set_mite_transfer(struct mite_dma_descriptor_ring *ring, +static void ni_cmd_set_mite_transfer(struct mite_ring *ring, struct comedi_subdevice *sdev, const struct comedi_cmd *cmd, unsigned int max_count) { diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index 9ed8bb8..e176b60 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -289,7 +289,7 @@ struct nidio96_private { int dio; unsigned short OpModeBits; struct mite_channel *di_mite_chan; - struct mite_dma_descriptor_ring *di_mite_ring; + struct mite_ring *di_mite_ring; spinlock_t mite_channel_lock; }; diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h index 6b46a19..1966519 100644 --- a/drivers/staging/comedi/drivers/ni_stc.h +++ b/drivers/staging/comedi/drivers/ni_stc.h @@ -1037,10 +1037,10 @@ struct ni_private { struct mite_channel *ai_mite_chan; struct mite_channel *ao_mite_chan; struct mite_channel *cdo_mite_chan; - struct mite_dma_descriptor_ring *ai_mite_ring; - struct mite_dma_descriptor_ring *ao_mite_ring; - struct mite_dma_descriptor_ring *cdo_mite_ring; - struct mite_dma_descriptor_ring *gpct_mite_ring[NUM_GPCT]; + struct mite_ring *ai_mite_ring; + struct mite_ring *ao_mite_ring; + struct mite_ring *cdo_mite_ring; + struct mite_ring *gpct_mite_ring[NUM_GPCT]; /* ni_pcimio board type flags (based on the boardinfo reg_type) */ unsigned int is_m_series:1; -- cgit v0.10.2 From a8b559275e479f1f18b40e7ddac79e4bd436bb24 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:37 -0700 Subject: staging: comedi: mite: rename mite_ring member 'descriptors_dma_addr' Rename this member of struct mite_ring to 'dma_addr' to help shorten the long lines. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index c616587..cf1157e 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -369,7 +369,7 @@ struct mite_ring *mite_alloc_ring(struct mite *mite) } ring->n_links = 0; ring->descriptors = NULL; - ring->descriptors_dma_addr = 0; + ring->dma_addr = 0; return ring; }; EXPORT_SYMBOL_GPL(mite_alloc_ring); @@ -382,7 +382,7 @@ void mite_free_ring(struct mite_ring *ring) ring->n_links * sizeof(struct mite_dma_desc), ring->descriptors, - ring->descriptors_dma_addr); + ring->dma_addr); } put_device(ring->hw_dev); kfree(ring); @@ -478,10 +478,10 @@ int mite_buf_change(struct mite_ring *ring, ring->n_links * sizeof(struct mite_dma_desc), ring->descriptors, - ring->descriptors_dma_addr); + ring->dma_addr); } ring->descriptors = NULL; - ring->descriptors_dma_addr = 0; + ring->dma_addr = 0; ring->n_links = 0; if (async->prealloc_bufsz == 0) @@ -492,7 +492,7 @@ int mite_buf_change(struct mite_ring *ring, ring->descriptors = dma_alloc_coherent(ring->hw_dev, n_links * sizeof(struct mite_dma_desc), - &ring->descriptors_dma_addr, GFP_KERNEL); + &ring->dma_addr, GFP_KERNEL); if (!ring->descriptors) { dev_err(s->device->class_dev, "mite: ring buffer allocation failed\n"); @@ -535,7 +535,7 @@ int mite_init_ring_descriptors(struct mite_ring *ring, ring->descriptors[i].addr = cpu_to_le32(async->buf_map->page_list[i].dma_addr); ring->descriptors[i].next = - cpu_to_le32(ring->descriptors_dma_addr + + cpu_to_le32(ring->dma_addr + (i + 1) * sizeof(struct mite_dma_desc)); } @@ -550,7 +550,7 @@ int mite_init_ring_descriptors(struct mite_ring *ring, } /* Assign the last link->next to point back to the head of the list. */ - ring->descriptors[i - 1].next = cpu_to_le32(ring->descriptors_dma_addr); + ring->descriptors[i - 1].next = cpu_to_le32(ring->dma_addr); /* * barrier is meant to insure that all the writes to the dma descriptors @@ -641,7 +641,7 @@ void mite_prep_dma(struct mite_channel *mite_chan, writel(lkcr, mite->mite_io_addr + MITE_LKCR(mite_chan->channel)); /* starting address for link chaining */ - writel(mite_chan->ring->descriptors_dma_addr, + writel(mite_chan->ring->dma_addr, mite->mite_io_addr + MITE_LKAR(mite_chan->channel)); } EXPORT_SYMBOL_GPL(mite_prep_dma); diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 5317d15..cd0883c 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -39,7 +39,7 @@ struct mite_ring { struct device *hw_dev; unsigned int n_links; struct mite_dma_desc *descriptors; - dma_addr_t descriptors_dma_addr; + dma_addr_t dma_addr; }; struct mite_channel { -- cgit v0.10.2 From b0af848ca3d4f1f234828ea92feb08667ff8c81e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:38 -0700 Subject: staging: comedi: mite: rename mite_ring member 'descriptors' Rename this member of struct mite_ring to 'descs' to help shorten the long lines. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index cf1157e..c21d9fa 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -368,7 +368,7 @@ struct mite_ring *mite_alloc_ring(struct mite *mite) return NULL; } ring->n_links = 0; - ring->descriptors = NULL; + ring->descs = NULL; ring->dma_addr = 0; return ring; }; @@ -377,11 +377,11 @@ EXPORT_SYMBOL_GPL(mite_alloc_ring); void mite_free_ring(struct mite_ring *ring) { if (ring) { - if (ring->descriptors) { + if (ring->descs) { dma_free_coherent(ring->hw_dev, ring->n_links * sizeof(struct mite_dma_desc), - ring->descriptors, + ring->descs, ring->dma_addr); } put_device(ring->hw_dev); @@ -473,14 +473,14 @@ int mite_buf_change(struct mite_ring *ring, struct comedi_async *async = s->async; unsigned int n_links; - if (ring->descriptors) { + if (ring->descs) { dma_free_coherent(ring->hw_dev, ring->n_links * sizeof(struct mite_dma_desc), - ring->descriptors, + ring->descs, ring->dma_addr); } - ring->descriptors = NULL; + ring->descs = NULL; ring->dma_addr = 0; ring->n_links = 0; @@ -489,11 +489,11 @@ int mite_buf_change(struct mite_ring *ring, n_links = async->prealloc_bufsz >> PAGE_SHIFT; - ring->descriptors = + ring->descs = dma_alloc_coherent(ring->hw_dev, n_links * sizeof(struct mite_dma_desc), &ring->dma_addr, GFP_KERNEL); - if (!ring->descriptors) { + if (!ring->descs) { dev_err(s->device->class_dev, "mite: ring buffer allocation failed\n"); return -ENOMEM; @@ -531,10 +531,10 @@ int mite_init_ring_descriptors(struct mite_ring *ring, /* We set the descriptors for all full links. */ for (i = 0; i < n_full_links; ++i) { - ring->descriptors[i].count = cpu_to_le32(PAGE_SIZE); - ring->descriptors[i].addr = + ring->descs[i].count = cpu_to_le32(PAGE_SIZE); + ring->descs[i].addr = cpu_to_le32(async->buf_map->page_list[i].dma_addr); - ring->descriptors[i].next = + ring->descs[i].next = cpu_to_le32(ring->dma_addr + (i + 1) * sizeof(struct mite_dma_desc)); } @@ -542,15 +542,15 @@ int mite_init_ring_descriptors(struct mite_ring *ring, /* the last link is either a remainder or was a full link. */ if (remainder > 0) { /* set the lesser count for the remainder link */ - ring->descriptors[i].count = cpu_to_le32(remainder); - ring->descriptors[i].addr = + ring->descs[i].count = cpu_to_le32(remainder); + ring->descs[i].addr = cpu_to_le32(async->buf_map->page_list[i].dma_addr); /* increment i so that assignment below refs last link */ ++i; } /* Assign the last link->next to point back to the head of the list. */ - ring->descriptors[i - 1].next = cpu_to_le32(ring->dma_addr); + ring->descs[i - 1].next = cpu_to_le32(ring->dma_addr); /* * barrier is meant to insure that all the writes to the dma descriptors diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index cd0883c..991e6b63 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -38,7 +38,7 @@ struct mite_dma_desc { struct mite_ring { struct device *hw_dev; unsigned int n_links; - struct mite_dma_desc *descriptors; + struct mite_dma_desc *descs; dma_addr_t dma_addr; }; -- cgit v0.10.2 From 3303410d04f28fa70d19adc9de2ae15a0909aff5 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:39 -0700 Subject: staging: comedi: mite: tidy up mite_init_ring_descriptors() Use a local variable for the mite_dma_desc pointer to help clarify this function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index c21d9fa..058ea5e 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -516,6 +516,7 @@ int mite_init_ring_descriptors(struct mite_ring *ring, unsigned int nbytes) { struct comedi_async *async = s->async; + struct mite_dma_desc *desc = NULL; unsigned int n_full_links = nbytes >> PAGE_SHIFT; unsigned int remainder = nbytes % PAGE_SIZE; int i; @@ -531,26 +532,23 @@ int mite_init_ring_descriptors(struct mite_ring *ring, /* We set the descriptors for all full links. */ for (i = 0; i < n_full_links; ++i) { - ring->descs[i].count = cpu_to_le32(PAGE_SIZE); - ring->descs[i].addr = - cpu_to_le32(async->buf_map->page_list[i].dma_addr); - ring->descs[i].next = - cpu_to_le32(ring->dma_addr + - (i + 1) * sizeof(struct mite_dma_desc)); + desc = &ring->descs[i]; + desc->count = cpu_to_le32(PAGE_SIZE); + desc->addr = cpu_to_le32(async->buf_map->page_list[i].dma_addr); + desc->next = cpu_to_le32(ring->dma_addr + + (i + 1) * sizeof(*desc)); } /* the last link is either a remainder or was a full link. */ if (remainder > 0) { + desc = &ring->descs[i]; /* set the lesser count for the remainder link */ - ring->descs[i].count = cpu_to_le32(remainder); - ring->descs[i].addr = - cpu_to_le32(async->buf_map->page_list[i].dma_addr); - /* increment i so that assignment below refs last link */ - ++i; + desc->count = cpu_to_le32(remainder); + desc->addr = cpu_to_le32(async->buf_map->page_list[i].dma_addr); } /* Assign the last link->next to point back to the head of the list. */ - ring->descs[i - 1].next = cpu_to_le32(ring->dma_addr); + desc->next = cpu_to_le32(ring->dma_addr); /* * barrier is meant to insure that all the writes to the dma descriptors -- cgit v0.10.2 From ab55b5c9f225d32a5355f7c799ab09c7fae5456d Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:40 -0700 Subject: staging: comedi: mite: rename mite member 'mite_io_addr' Rename this member of struct mite to 'mmio' to help shorten the long lines. Add a local variable for the mite pointer in the ni_pcimio driver to clarify and shorten the long lines. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 058ea5e..9a74e37 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -216,7 +216,7 @@ static unsigned int mite_drq_reqs(unsigned int drq_line) static void mite_dma_reset(struct mite_channel *mite_chan) { writel(CHOR_DMARESET | CHOR_FRESET, - mite_chan->mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); + mite_chan->mite->mmio + MITE_CHOR(mite_chan->channel)); } struct mite *mite_alloc(struct pci_dev *pcidev) @@ -257,7 +257,7 @@ static void dump_chip_signature(u32 csigr_bits) static unsigned int mite_fifo_size(struct mite *mite, unsigned int channel) { - unsigned int fcr_bits = readl(mite->mite_io_addr + MITE_FCR(channel)); + unsigned int fcr_bits = readl(mite->mmio + MITE_FCR(channel)); unsigned int empty_count = (fcr_bits >> 16) & 0xff; unsigned int full_count = fcr_bits & 0xff; @@ -275,8 +275,8 @@ int mite_setup2(struct comedi_device *dev, pci_set_master(mite->pcidev); - mite->mite_io_addr = pci_ioremap_bar(mite->pcidev, 0); - if (!mite->mite_io_addr) { + mite->mmio = pci_ioremap_bar(mite->pcidev, 0); + if (!mite->mmio) { dev_err(dev->class_dev, "Failed to remap mite io memory address\n"); return -ENOMEM; @@ -292,16 +292,15 @@ int mite_setup2(struct comedi_device *dev, length = pci_resource_len(mite->pcidev, 1); if (use_win1) { - writel(0, mite->mite_io_addr + MITE_IODWBSR); + writel(0, mite->mmio + MITE_IODWBSR); dev_info(dev->class_dev, "using I/O Window Base Size register 1\n"); writel(daq_phys_addr | WENAB | MITE_IODWBSR_1_WSIZE_bits(length), - mite->mite_io_addr + MITE_IODWBSR_1); - writel(0, mite->mite_io_addr + MITE_IODWCR_1); + mite->mmio + MITE_IODWBSR_1); + writel(0, mite->mmio + MITE_IODWCR_1); } else { - writel(daq_phys_addr | WENAB, - mite->mite_io_addr + MITE_IODWBSR); + writel(daq_phys_addr | WENAB, mite->mmio + MITE_IODWBSR); } /* * Make sure dma bursts work. I got this from running a bus analyzer @@ -314,13 +313,11 @@ int mite_setup2(struct comedi_device *dev, * written and read back. The bits 0x1f always read as 1. * The rest always read as zero. */ - unknown_dma_burst_bits = - readl(mite->mite_io_addr + MITE_UNKNOWN_DMA_BURST_REG); + unknown_dma_burst_bits = readl(mite->mmio + MITE_UNKNOWN_DMA_BURST_REG); unknown_dma_burst_bits |= UNKNOWN_DMA_BURST_ENABLE_BITS; - writel(unknown_dma_burst_bits, - mite->mite_io_addr + MITE_UNKNOWN_DMA_BURST_REG); + writel(unknown_dma_burst_bits, mite->mmio + MITE_UNKNOWN_DMA_BURST_REG); - csigr_bits = readl(mite->mite_io_addr + MITE_CSIGR); + csigr_bits = readl(mite->mmio + MITE_CSIGR); mite->num_channels = CSIGR_TO_DMAC(csigr_bits); if (mite->num_channels > MAX_MITE_DMA_CHANNELS) { dev_warn(dev->class_dev, @@ -330,12 +327,12 @@ int mite_setup2(struct comedi_device *dev, } dump_chip_signature(csigr_bits); for (i = 0; i < mite->num_channels; i++) { - writel(CHOR_DMARESET, mite->mite_io_addr + MITE_CHOR(i)); + writel(CHOR_DMARESET, mite->mmio + MITE_CHOR(i)); /* disable interrupts */ writel(CHCR_CLR_DMA_IE | CHCR_CLR_LINKP_IE | CHCR_CLR_SAR_IE | CHCR_CLR_DONE_IE | CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE | CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE, - mite->mite_io_addr + MITE_CHCR(i)); + mite->mmio + MITE_CHCR(i)); } mite->fifo_size = mite_fifo_size(mite, 0); dev_info(dev->class_dev, "fifo size is %i.\n", mite->fifo_size); @@ -348,8 +345,8 @@ void mite_detach(struct mite *mite) if (!mite) return; - if (mite->mite_io_addr) - iounmap(mite->mite_io_addr); + if (mite->mmio) + iounmap(mite->mmio); kfree(mite); } @@ -435,7 +432,7 @@ void mite_release_channel(struct mite_channel *mite_chan) CHCR_CLR_SAR_IE | CHCR_CLR_DONE_IE | CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE | CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE, - mite->mite_io_addr + MITE_CHCR(mite_chan->channel)); + mite->mmio + MITE_CHCR(mite_chan->channel)); mite->channel_allocated[mite_chan->channel] = 0; mite_chan->ring = NULL; mmiowb(); @@ -447,7 +444,6 @@ EXPORT_SYMBOL_GPL(mite_release_channel); void mite_dma_arm(struct mite_channel *mite_chan) { struct mite *mite = mite_chan->mite; - int chor; unsigned long flags; /* @@ -455,11 +451,10 @@ void mite_dma_arm(struct mite_channel *mite_chan) * is done before writing to the mite to arm dma transfer */ smp_mb(); - /* arm */ - chor = CHOR_START; spin_lock_irqsave(&mite->lock, flags); mite_chan->done = 0; - writel(chor, mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); + /* arm */ + writel(CHOR_START, mite->mmio + MITE_CHOR(mite_chan->channel)); mmiowb(); spin_unlock_irqrestore(&mite->lock, flags); } @@ -592,7 +587,7 @@ void mite_prep_dma(struct mite_channel *mite_chan, if (mite_chan->dir == COMEDI_INPUT) chcr |= CHCR_DEV_TO_MEM; - writel(chcr, mite->mite_io_addr + MITE_CHCR(mite_chan->channel)); + writel(chcr, mite->mmio + MITE_CHCR(mite_chan->channel)); /* to/from memory */ mcr = mite_retry_limit(64) | CR_ASEQUP; @@ -610,7 +605,7 @@ void mite_prep_dma(struct mite_channel *mite_chan, pr_warn("bug! invalid mem bit width for dma transfer\n"); break; } - writel(mcr, mite->mite_io_addr + MITE_MCR(mite_chan->channel)); + writel(mcr, mite->mmio + MITE_MCR(mite_chan->channel)); /* from/to device */ dcr = mite_retry_limit(64) | CR_ASEQUP; @@ -629,18 +624,18 @@ void mite_prep_dma(struct mite_channel *mite_chan, pr_warn("bug! invalid dev bit width for dma transfer\n"); break; } - writel(dcr, mite->mite_io_addr + MITE_DCR(mite_chan->channel)); + writel(dcr, mite->mmio + MITE_DCR(mite_chan->channel)); /* reset the DAR */ - writel(0, mite->mite_io_addr + MITE_DAR(mite_chan->channel)); + writel(0, mite->mmio + MITE_DAR(mite_chan->channel)); /* the link is 32bits */ lkcr = mite_retry_limit(64) | CR_ASEQUP | CR_PSIZE32; - writel(lkcr, mite->mite_io_addr + MITE_LKCR(mite_chan->channel)); + writel(lkcr, mite->mmio + MITE_LKCR(mite_chan->channel)); /* starting address for link chaining */ writel(mite_chan->ring->dma_addr, - mite->mite_io_addr + MITE_LKAR(mite_chan->channel)); + mite->mmio + MITE_LKAR(mite_chan->channel)); } EXPORT_SYMBOL_GPL(mite_prep_dma); @@ -648,15 +643,14 @@ static u32 mite_device_bytes_transferred(struct mite_channel *mite_chan) { struct mite *mite = mite_chan->mite; - return readl(mite->mite_io_addr + MITE_DAR(mite_chan->channel)); + return readl(mite->mmio + MITE_DAR(mite_chan->channel)); } u32 mite_bytes_in_transit(struct mite_channel *mite_chan) { struct mite *mite = mite_chan->mite; - return readl(mite->mite_io_addr + - MITE_FCR(mite_chan->channel)) & 0x000000FF; + return readl(mite->mmio + MITE_FCR(mite_chan->channel)) & 0xff; } EXPORT_SYMBOL_GPL(mite_bytes_in_transit); @@ -699,11 +693,9 @@ static u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan) void mite_dma_disarm(struct mite_channel *mite_chan) { struct mite *mite = mite_chan->mite; - unsigned int chor; /* disarm */ - chor = CHOR_ABORT; - writel(chor, mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); + writel(CHOR_ABORT, mite->mmio + MITE_CHOR(mite_chan->channel)); } EXPORT_SYMBOL_GPL(mite_dma_disarm); @@ -799,11 +791,11 @@ static unsigned int mite_get_status(struct mite_channel *mite_chan) unsigned long flags; spin_lock_irqsave(&mite->lock, flags); - status = readl(mite->mite_io_addr + MITE_CHSR(mite_chan->channel)); + status = readl(mite->mmio + MITE_CHSR(mite_chan->channel)); if (status & CHSR_DONE) { mite_chan->done = 1; writel(CHOR_CLRDONE, - mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); + mite->mmio + MITE_CHOR(mite_chan->channel)); } mmiowb(); spin_unlock_irqrestore(&mite->lock, flags); @@ -819,8 +811,7 @@ void mite_ack_linkc(struct mite_channel *mite_chan, status = mite_get_status(mite_chan); if (status & CHSR_LINKC) { - writel(CHOR_CLRLC, - mite->mite_io_addr + MITE_CHOR(mite_chan->channel)); + writel(CHOR_CLRLC, mite->mmio + MITE_CHOR(mite_chan->channel)); sync = true; } if (sync) diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 991e6b63..d1d97ec 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -52,7 +52,7 @@ struct mite_channel { struct mite { struct pci_dev *pcidev; - void __iomem *mite_io_addr; + void __iomem *mmio; struct mite_channel channels[MAX_MITE_DMA_CHANNELS]; short channel_allocated[MAX_MITE_DMA_CHANNELS]; int num_channels; diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c index 4028b6f..73c7d32 100644 --- a/drivers/staging/comedi/drivers/ni_pcimio.c +++ b/drivers/staging/comedi/drivers/ni_pcimio.c @@ -1061,6 +1061,7 @@ static int pcimio_dio_change(struct comedi_device *dev, static void m_series_init_eeprom_buffer(struct comedi_device *dev) { struct ni_private *devpriv = dev->private; + struct mite *mite = devpriv->mite; resource_size_t daq_phys_addr; static const int Start_Cal_EEPROM = 0x400; static const unsigned window_size = 10; @@ -1072,17 +1073,16 @@ static void m_series_init_eeprom_buffer(struct comedi_device *dev) int i; /* IO Window 1 needs to be temporarily mapped to read the eeprom */ - daq_phys_addr = pci_resource_start(devpriv->mite->pcidev, 1); + daq_phys_addr = pci_resource_start(mite->pcidev, 1); - old_iodwbsr_bits = readl(devpriv->mite->mite_io_addr + MITE_IODWBSR); - old_iodwbsr1_bits = readl(devpriv->mite->mite_io_addr + MITE_IODWBSR_1); - old_iodwcr1_bits = readl(devpriv->mite->mite_io_addr + MITE_IODWCR_1); - writel(0x0, devpriv->mite->mite_io_addr + MITE_IODWBSR); + old_iodwbsr_bits = readl(mite->mmio + MITE_IODWBSR); + old_iodwbsr1_bits = readl(mite->mmio + MITE_IODWBSR_1); + old_iodwcr1_bits = readl(mite->mmio + MITE_IODWCR_1); + writel(0x0, mite->mmio + MITE_IODWBSR); writel(((0x80 | window_size) | daq_phys_addr), - devpriv->mite->mite_io_addr + MITE_IODWBSR_1); - writel(0x1 | old_iodwcr1_bits, - devpriv->mite->mite_io_addr + MITE_IODWCR_1); - writel(0xf, devpriv->mite->mite_io_addr + 0x30); + mite->mmio + MITE_IODWBSR_1); + writel(0x1 | old_iodwcr1_bits, mite->mmio + MITE_IODWCR_1); + writel(0xf, mite->mmio + 0x30); BUG_ON(serial_number_eeprom_length > sizeof(devpriv->serial_number)); for (i = 0; i < serial_number_eeprom_length; ++i) { @@ -1094,10 +1094,10 @@ static void m_series_init_eeprom_buffer(struct comedi_device *dev) for (i = 0; i < M_SERIES_EEPROM_SIZE; ++i) devpriv->eeprom_buffer[i] = ni_readb(dev, Start_Cal_EEPROM + i); - writel(old_iodwbsr1_bits, devpriv->mite->mite_io_addr + MITE_IODWBSR_1); - writel(old_iodwbsr_bits, devpriv->mite->mite_io_addr + MITE_IODWBSR); - writel(old_iodwcr1_bits, devpriv->mite->mite_io_addr + MITE_IODWCR_1); - writel(0x0, devpriv->mite->mite_io_addr + 0x30); + writel(old_iodwbsr1_bits, mite->mmio + MITE_IODWBSR_1); + writel(old_iodwbsr_bits, mite->mmio + MITE_IODWBSR); + writel(old_iodwcr1_bits, mite->mmio + MITE_IODWCR_1); + writel(0x0, mite->mmio + 0x30); } static void init_6143(struct comedi_device *dev) -- cgit v0.10.2 From 48a73aedd7e47140bec5ccab17d4aa8604f76000 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:41 -0700 Subject: staging: comedi: mite: remove mite member 'channel_allocated' An allocated mite_channel will have its 'ring' member initialized to point to the mite_ring that will be used for DMA. A non-allocated mite_channel will have a 'ring' member set to NULL, either by a channel release or due to the initial kzalloc of the 'mite' struct. Refactor the code to use the mite_chan->ring to detect in a channel is allocated and remove the unnecessary member. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 9a74e37..14b5345 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -392,9 +392,9 @@ struct mite_channel *mite_request_channel_in_range(struct mite *mite, unsigned int min_channel, unsigned int max_channel) { - int i; + struct mite_channel *mite_chan = NULL; unsigned long flags; - struct mite_channel *channel = NULL; + int i; /* * spin lock so mite_release_channel can be called safely @@ -402,15 +402,15 @@ struct mite_channel *mite_request_channel_in_range(struct mite *mite, */ spin_lock_irqsave(&mite->lock, flags); for (i = min_channel; i <= max_channel; ++i) { - if (mite->channel_allocated[i] == 0) { - mite->channel_allocated[i] = 1; - channel = &mite->channels[i]; - channel->ring = ring; + mite_chan = &mite->channels[i]; + if (!mite_chan->ring) { + mite_chan->ring = ring; break; } + mite_chan = NULL; } spin_unlock_irqrestore(&mite->lock, flags); - return channel; + return mite_chan; } EXPORT_SYMBOL_GPL(mite_request_channel_in_range); @@ -421,7 +421,7 @@ void mite_release_channel(struct mite_channel *mite_chan) /* spin lock to prevent races with mite_request_channel */ spin_lock_irqsave(&mite->lock, flags); - if (mite->channel_allocated[mite_chan->channel]) { + if (mite_chan->ring) { mite_dma_disarm(mite_chan); mite_dma_reset(mite_chan); /* @@ -433,7 +433,6 @@ void mite_release_channel(struct mite_channel *mite_chan) CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE | CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE, mite->mmio + MITE_CHCR(mite_chan->channel)); - mite->channel_allocated[mite_chan->channel] = 0; mite_chan->ring = NULL; mmiowb(); } diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index d1d97ec..2d97ad4 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -54,7 +54,6 @@ struct mite { struct pci_dev *pcidev; void __iomem *mmio; struct mite_channel channels[MAX_MITE_DMA_CHANNELS]; - short channel_allocated[MAX_MITE_DMA_CHANNELS]; int num_channels; unsigned int fifo_size; /* protects mite_channel from being released by the driver */ -- cgit v0.10.2 From 9ec148da5fcb04456e883cb243fa1e872d47d385 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:42 -0700 Subject: staging: comedi: mite: introduce mite_free_dma_descs() Introduce a helper function to handle the dma_free_coherent() of the mite dma descriptors. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 14b5345..8b0f875 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -371,16 +371,24 @@ struct mite_ring *mite_alloc_ring(struct mite *mite) }; EXPORT_SYMBOL_GPL(mite_alloc_ring); +static void mite_free_dma_descs(struct mite_ring *ring) +{ + struct mite_dma_desc *descs = ring->descs; + + if (descs) { + dma_free_coherent(ring->hw_dev, + ring->n_links * sizeof(*descs), + descs, ring->dma_addr); + ring->descs = NULL; + ring->dma_addr = 0; + ring->n_links = 0; + } +} + void mite_free_ring(struct mite_ring *ring) { if (ring) { - if (ring->descs) { - dma_free_coherent(ring->hw_dev, - ring->n_links * - sizeof(struct mite_dma_desc), - ring->descs, - ring->dma_addr); - } + mite_free_dma_descs(ring); put_device(ring->hw_dev); kfree(ring); } @@ -467,16 +475,7 @@ int mite_buf_change(struct mite_ring *ring, struct comedi_async *async = s->async; unsigned int n_links; - if (ring->descs) { - dma_free_coherent(ring->hw_dev, - ring->n_links * - sizeof(struct mite_dma_desc), - ring->descs, - ring->dma_addr); - } - ring->descs = NULL; - ring->dma_addr = 0; - ring->n_links = 0; + mite_free_dma_descs(ring); if (async->prealloc_bufsz == 0) return 0; -- cgit v0.10.2 From 0bdb1288fae54833367f00a1c76244a30731b8c9 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:43 -0700 Subject: staging: comedi: mite: use prefered form for passing a struct size Add a local variable to mite_buf_change() so that the prefered form of passing a struct size, sizeof(*p), can be used. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 8b0f875..650c603 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -473,6 +473,7 @@ int mite_buf_change(struct mite_ring *ring, struct comedi_subdevice *s) { struct comedi_async *async = s->async; + struct mite_dma_desc *descs; unsigned int n_links; mite_free_dma_descs(ring); @@ -482,15 +483,15 @@ int mite_buf_change(struct mite_ring *ring, n_links = async->prealloc_bufsz >> PAGE_SHIFT; - ring->descs = - dma_alloc_coherent(ring->hw_dev, - n_links * sizeof(struct mite_dma_desc), - &ring->dma_addr, GFP_KERNEL); - if (!ring->descs) { + descs = dma_alloc_coherent(ring->hw_dev, + n_links * sizeof(*descs), + &ring->dma_addr, GFP_KERNEL); + if (!descs) { dev_err(s->device->class_dev, "mite: ring buffer allocation failed\n"); return -ENOMEM; } + ring->descs = descs; ring->n_links = n_links; return mite_init_ring_descriptors(ring, s, n_links << PAGE_SHIFT); -- cgit v0.10.2 From 5b329305d252834fa2a40fcb318743bcc18c8a98 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:44 -0700 Subject: staging: comedi: mite: document mite_alloc()/mite_detach() These functions are basically the comedi_driver (*attach)/(*detach) for this driver. For aesthetics, rename mite_alloc() to mite_attach() and pass the comedi_device pointer to it instead of the pci_dev pointer. Move the functions to the end of the file. This is typically where a comedi_drivers (*attach)/(*detach) are located. Add some docbook comments for these exported functions. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 650c603..f64c5df 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -219,25 +219,6 @@ static void mite_dma_reset(struct mite_channel *mite_chan) mite_chan->mite->mmio + MITE_CHOR(mite_chan->channel)); } -struct mite *mite_alloc(struct pci_dev *pcidev) -{ - struct mite *mite; - unsigned int i; - - mite = kzalloc(sizeof(*mite), GFP_KERNEL); - if (mite) { - spin_lock_init(&mite->lock); - mite->pcidev = pcidev; - for (i = 0; i < MAX_MITE_DMA_CHANNELS; ++i) { - mite->channels[i].mite = mite; - mite->channels[i].channel = i; - mite->channels[i].done = 1; - } - } - return mite; -} -EXPORT_SYMBOL_GPL(mite_alloc); - static void dump_chip_signature(u32 csigr_bits) { unsigned int wpdep; @@ -340,18 +321,6 @@ int mite_setup2(struct comedi_device *dev, } EXPORT_SYMBOL_GPL(mite_setup2); -void mite_detach(struct mite *mite) -{ - if (!mite) - return; - - if (mite->mmio) - iounmap(mite->mmio); - - kfree(mite); -} -EXPORT_SYMBOL_GPL(mite_detach); - struct mite_ring *mite_alloc_ring(struct mite *mite) { struct mite_ring *ring; @@ -838,6 +807,53 @@ int mite_done(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_done); +/** + * mite_attach() - Allocate and initialize a MITE device for a comedi driver. + * @dev: COMEDI device. + * + * Called by a COMEDI drivers (*auto_attach). + * + * Returns a pointer to the MITE device on success, or NULL if the MITE cannot + * be allocated. + */ +struct mite *mite_attach(struct comedi_device *dev) +{ + struct pci_dev *pcidev = comedi_to_pci_dev(dev); + struct mite *mite; + unsigned int i; + + mite = kzalloc(sizeof(*mite), GFP_KERNEL); + if (mite) { + spin_lock_init(&mite->lock); + mite->pcidev = pcidev; + for (i = 0; i < MAX_MITE_DMA_CHANNELS; ++i) { + mite->channels[i].mite = mite; + mite->channels[i].channel = i; + mite->channels[i].done = 1; + } + } + return mite; +} +EXPORT_SYMBOL_GPL(mite_attach); + +/** + * mite_detach() - Unmap and free a MITE device for a comedi driver. + * @mite: MITE device. + * + * Called by a COMEDI drivers (*detach). + */ +void mite_detach(struct mite *mite) +{ + if (!mite) + return; + + if (mite->mmio) + iounmap(mite->mmio); + + kfree(mite); +} +EXPORT_SYMBOL_GPL(mite_detach); + static int __init mite_module_init(void) { return 0; diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 2d97ad4..d2643e4 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -60,8 +60,6 @@ struct mite { spinlock_t lock; }; -struct mite *mite_alloc(struct pci_dev *); - int mite_setup2(struct comedi_device *, struct mite *, bool use_win1); static inline int mite_setup(struct comedi_device *dev, @@ -70,7 +68,6 @@ static inline int mite_setup(struct comedi_device *dev, return mite_setup2(dev, mite, false); } -void mite_detach(struct mite *); struct mite_ring *mite_alloc_ring(struct mite *); void mite_free_ring(struct mite_ring *ring); struct mite_channel *mite_request_channel_in_range(struct mite *, @@ -101,6 +98,9 @@ int mite_buf_change(struct mite_ring *, struct comedi_subdevice *); int mite_init_ring_descriptors(struct mite_ring *, struct comedi_subdevice *, unsigned int nbytes); +struct mite *mite_attach(struct comedi_device *); +void mite_detach(struct mite *); + /* * Mite registers (used outside of the mite driver) */ diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 041ea67..de75598 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -724,7 +724,7 @@ static int ni_660x_auto_attach(struct comedi_device *dev, return ret; devpriv = dev->private; - devpriv->mite = mite_alloc(pcidev); + devpriv->mite = mite_attach(dev); if (!devpriv->mite) return -ENOMEM; diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index e176b60..1e30792 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -897,7 +897,7 @@ static int nidio_auto_attach(struct comedi_device *dev, spin_lock_init(&devpriv->mite_channel_lock); - devpriv->mite = mite_alloc(pcidev); + devpriv->mite = mite_attach(dev); if (!devpriv->mite) return -ENOMEM; diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c index 73c7d32..0408ba3 100644 --- a/drivers/staging/comedi/drivers/ni_pcimio.c +++ b/drivers/staging/comedi/drivers/ni_pcimio.c @@ -1172,7 +1172,7 @@ static int pcimio_auto_attach(struct comedi_device *dev, return ret; devpriv = dev->private; - devpriv->mite = mite_alloc(pcidev); + devpriv->mite = mite_attach(dev); if (!devpriv->mite) return -ENOMEM; -- cgit v0.10.2 From 48f2c1aecfbcfe5ab4b2a003dee1a469e7c32214 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:45 -0700 Subject: staging: comedi: mite: do mite_steup() as part of mite_attach() Currently all the drivers that use the mite driver have to call mite_setup() after allocating and initializing the mite device with mite_attach(). Move the mite_setup() call into mite_attach() to simplify the drivers a bit and remove the need for the additional inline and exported functions. For aesthetics, move mite_setup2(), and rename it to mite_setup(), so it's near mite_attach(). Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index f64c5df..08e9c8b 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -245,82 +245,6 @@ static unsigned int mite_fifo_size(struct mite *mite, unsigned int channel) return empty_count + full_count; } -int mite_setup2(struct comedi_device *dev, - struct mite *mite, bool use_win1) -{ - resource_size_t daq_phys_addr; - unsigned long length; - int i; - u32 csigr_bits; - unsigned int unknown_dma_burst_bits; - - pci_set_master(mite->pcidev); - - mite->mmio = pci_ioremap_bar(mite->pcidev, 0); - if (!mite->mmio) { - dev_err(dev->class_dev, - "Failed to remap mite io memory address\n"); - return -ENOMEM; - } - - dev->mmio = pci_ioremap_bar(mite->pcidev, 1); - if (!dev->mmio) { - dev_err(dev->class_dev, - "Failed to remap daq io memory address\n"); - return -ENOMEM; - } - daq_phys_addr = pci_resource_start(mite->pcidev, 1); - length = pci_resource_len(mite->pcidev, 1); - - if (use_win1) { - writel(0, mite->mmio + MITE_IODWBSR); - dev_info(dev->class_dev, - "using I/O Window Base Size register 1\n"); - writel(daq_phys_addr | WENAB | - MITE_IODWBSR_1_WSIZE_bits(length), - mite->mmio + MITE_IODWBSR_1); - writel(0, mite->mmio + MITE_IODWCR_1); - } else { - writel(daq_phys_addr | WENAB, mite->mmio + MITE_IODWBSR); - } - /* - * Make sure dma bursts work. I got this from running a bus analyzer - * on a pxi-6281 and a pxi-6713. 6713 powered up with register value - * of 0x61f and bursts worked. 6281 powered up with register value of - * 0x1f and bursts didn't work. The NI windows driver reads the - * register, then does a bitwise-or of 0x600 with it and writes it back. - * - * The bits 0x90180700 in MITE_UNKNOWN_DMA_BURST_REG can be - * written and read back. The bits 0x1f always read as 1. - * The rest always read as zero. - */ - unknown_dma_burst_bits = readl(mite->mmio + MITE_UNKNOWN_DMA_BURST_REG); - unknown_dma_burst_bits |= UNKNOWN_DMA_BURST_ENABLE_BITS; - writel(unknown_dma_burst_bits, mite->mmio + MITE_UNKNOWN_DMA_BURST_REG); - - csigr_bits = readl(mite->mmio + MITE_CSIGR); - mite->num_channels = CSIGR_TO_DMAC(csigr_bits); - if (mite->num_channels > MAX_MITE_DMA_CHANNELS) { - dev_warn(dev->class_dev, - "mite: bug? chip claims to have %i dma channels. Setting to %i.\n", - mite->num_channels, MAX_MITE_DMA_CHANNELS); - mite->num_channels = MAX_MITE_DMA_CHANNELS; - } - dump_chip_signature(csigr_bits); - for (i = 0; i < mite->num_channels; i++) { - writel(CHOR_DMARESET, mite->mmio + MITE_CHOR(i)); - /* disable interrupts */ - writel(CHCR_CLR_DMA_IE | CHCR_CLR_LINKP_IE | CHCR_CLR_SAR_IE | - CHCR_CLR_DONE_IE | CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE | - CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE, - mite->mmio + MITE_CHCR(i)); - } - mite->fifo_size = mite_fifo_size(mite, 0); - dev_info(dev->class_dev, "fifo size is %i.\n", mite->fifo_size); - return 0; -} -EXPORT_SYMBOL_GPL(mite_setup2); - struct mite_ring *mite_alloc_ring(struct mite *mite) { struct mite_ring *ring; @@ -807,31 +731,118 @@ int mite_done(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_done); +static int mite_setup(struct comedi_device *dev, struct mite *mite, + bool use_win1) +{ + resource_size_t daq_phys_addr; + unsigned long length; + int i; + u32 csigr_bits; + unsigned int unknown_dma_burst_bits; + + pci_set_master(mite->pcidev); + + mite->mmio = pci_ioremap_bar(mite->pcidev, 0); + if (!mite->mmio) { + dev_err(dev->class_dev, + "Failed to remap mite io memory address\n"); + return -ENOMEM; + } + + dev->mmio = pci_ioremap_bar(mite->pcidev, 1); + if (!dev->mmio) { + dev_err(dev->class_dev, + "Failed to remap daq io memory address\n"); + return -ENOMEM; + } + daq_phys_addr = pci_resource_start(mite->pcidev, 1); + length = pci_resource_len(mite->pcidev, 1); + + if (use_win1) { + writel(0, mite->mmio + MITE_IODWBSR); + dev_info(dev->class_dev, + "using I/O Window Base Size register 1\n"); + writel(daq_phys_addr | WENAB | + MITE_IODWBSR_1_WSIZE_bits(length), + mite->mmio + MITE_IODWBSR_1); + writel(0, mite->mmio + MITE_IODWCR_1); + } else { + writel(daq_phys_addr | WENAB, mite->mmio + MITE_IODWBSR); + } + /* + * Make sure dma bursts work. I got this from running a bus analyzer + * on a pxi-6281 and a pxi-6713. 6713 powered up with register value + * of 0x61f and bursts worked. 6281 powered up with register value of + * 0x1f and bursts didn't work. The NI windows driver reads the + * register, then does a bitwise-or of 0x600 with it and writes it back. + * + * The bits 0x90180700 in MITE_UNKNOWN_DMA_BURST_REG can be + * written and read back. The bits 0x1f always read as 1. + * The rest always read as zero. + */ + unknown_dma_burst_bits = readl(mite->mmio + MITE_UNKNOWN_DMA_BURST_REG); + unknown_dma_burst_bits |= UNKNOWN_DMA_BURST_ENABLE_BITS; + writel(unknown_dma_burst_bits, mite->mmio + MITE_UNKNOWN_DMA_BURST_REG); + + csigr_bits = readl(mite->mmio + MITE_CSIGR); + mite->num_channels = CSIGR_TO_DMAC(csigr_bits); + if (mite->num_channels > MAX_MITE_DMA_CHANNELS) { + dev_warn(dev->class_dev, + "mite: bug? chip claims to have %i dma channels. Setting to %i.\n", + mite->num_channels, MAX_MITE_DMA_CHANNELS); + mite->num_channels = MAX_MITE_DMA_CHANNELS; + } + dump_chip_signature(csigr_bits); + for (i = 0; i < mite->num_channels; i++) { + writel(CHOR_DMARESET, mite->mmio + MITE_CHOR(i)); + /* disable interrupts */ + writel(CHCR_CLR_DMA_IE | CHCR_CLR_LINKP_IE | CHCR_CLR_SAR_IE | + CHCR_CLR_DONE_IE | CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE | + CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE, + mite->mmio + MITE_CHCR(i)); + } + mite->fifo_size = mite_fifo_size(mite, 0); + dev_info(dev->class_dev, "fifo size is %i.\n", mite->fifo_size); + return 0; +} + /** * mite_attach() - Allocate and initialize a MITE device for a comedi driver. * @dev: COMEDI device. + * @use_win1: flag to use I/O Window 1 instead of I/O Window 0. * * Called by a COMEDI drivers (*auto_attach). * * Returns a pointer to the MITE device on success, or NULL if the MITE cannot - * be allocated. + * be allocated or remapped. */ -struct mite *mite_attach(struct comedi_device *dev) +struct mite *mite_attach(struct comedi_device *dev, bool use_win1) { struct pci_dev *pcidev = comedi_to_pci_dev(dev); struct mite *mite; unsigned int i; + int ret; mite = kzalloc(sizeof(*mite), GFP_KERNEL); - if (mite) { - spin_lock_init(&mite->lock); - mite->pcidev = pcidev; - for (i = 0; i < MAX_MITE_DMA_CHANNELS; ++i) { - mite->channels[i].mite = mite; - mite->channels[i].channel = i; - mite->channels[i].done = 1; - } + if (!mite) + return NULL; + + spin_lock_init(&mite->lock); + mite->pcidev = pcidev; + for (i = 0; i < MAX_MITE_DMA_CHANNELS; ++i) { + mite->channels[i].mite = mite; + mite->channels[i].channel = i; + mite->channels[i].done = 1; } + + ret = mite_setup(dev, mite, use_win1); + if (ret) { + if (mite->mmio) + iounmap(mite->mmio); + kfree(mite); + return NULL; + } + return mite; } EXPORT_SYMBOL_GPL(mite_attach); diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index d2643e4..95b645e 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -60,14 +60,6 @@ struct mite { spinlock_t lock; }; -int mite_setup2(struct comedi_device *, struct mite *, bool use_win1); - -static inline int mite_setup(struct comedi_device *dev, - struct mite *mite) -{ - return mite_setup2(dev, mite, false); -} - struct mite_ring *mite_alloc_ring(struct mite *); void mite_free_ring(struct mite_ring *ring); struct mite_channel *mite_request_channel_in_range(struct mite *, @@ -98,7 +90,7 @@ int mite_buf_change(struct mite_ring *, struct comedi_subdevice *); int mite_init_ring_descriptors(struct mite_ring *, struct comedi_subdevice *, unsigned int nbytes); -struct mite *mite_attach(struct comedi_device *); +struct mite *mite_attach(struct comedi_device *, bool use_win1); void mite_detach(struct mite *); /* diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index de75598..0dcb826 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -724,14 +724,10 @@ static int ni_660x_auto_attach(struct comedi_device *dev, return ret; devpriv = dev->private; - devpriv->mite = mite_attach(dev); + devpriv->mite = mite_attach(dev, true); /* use win1 */ if (!devpriv->mite) return -ENOMEM; - ret = mite_setup2(dev, devpriv->mite, true); - if (ret < 0) - return ret; - ret = ni_660x_alloc_mite_rings(dev); if (ret < 0) return ret; diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index 1e30792..02a5329 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -897,14 +897,10 @@ static int nidio_auto_attach(struct comedi_device *dev, spin_lock_init(&devpriv->mite_channel_lock); - devpriv->mite = mite_attach(dev); + devpriv->mite = mite_attach(dev, false); /* use win0 */ if (!devpriv->mite) return -ENOMEM; - ret = mite_setup(dev, devpriv->mite); - if (ret < 0) - return ret; - devpriv->di_mite_ring = mite_alloc_ring(devpriv->mite); if (!devpriv->di_mite_ring) return -ENOMEM; diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c index 0408ba3..344aa34 100644 --- a/drivers/staging/comedi/drivers/ni_pcimio.c +++ b/drivers/staging/comedi/drivers/ni_pcimio.c @@ -1172,7 +1172,7 @@ static int pcimio_auto_attach(struct comedi_device *dev, return ret; devpriv = dev->private; - devpriv->mite = mite_attach(dev); + devpriv->mite = mite_attach(dev, false); /* use win0 */ if (!devpriv->mite) return -ENOMEM; @@ -1197,10 +1197,6 @@ static int pcimio_auto_attach(struct comedi_device *dev, if (board->reg_type == ni_reg_6713) devpriv->is_6713 = 1; - ret = mite_setup(dev, devpriv->mite); - if (ret < 0) - return ret; - devpriv->ai_mite_ring = mite_alloc_ring(devpriv->mite); if (!devpriv->ai_mite_ring) return -ENOMEM; -- cgit v0.10.2 From a2163cc35a6fb8852ad7ce1fa4eb90bad0674bbd Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:46 -0700 Subject: staging: comedi: mite: tidy up kernel messages in mite_steup() The dev_err() messages with pci_ioremap_bar() fails are just noise. Remove them. The 'use_win1' and 'fifo_size' dev_info() messages are also noise but they may be useful when debugging. Change them to dev_dbg(). Absorb dump_chip_signnature() and change the pr_info() messages to dev_dbg(). These also might be useful when debugging. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 08e9c8b..d51a29b 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -219,23 +219,6 @@ static void mite_dma_reset(struct mite_channel *mite_chan) mite_chan->mite->mmio + MITE_CHOR(mite_chan->channel)); } -static void dump_chip_signature(u32 csigr_bits) -{ - unsigned int wpdep; - - /* get the wpdep bits and convert it to the write port fifo depth */ - wpdep = CSIGR_TO_WPDEP(csigr_bits); - if (wpdep) - wpdep = BIT(wpdep); - - pr_info("version = %i, type = %i, mite mode = %i, interface mode = %i\n", - CSIGR_TO_VER(csigr_bits), CSIGR_TO_TYPE(csigr_bits), - CSIGR_TO_MMODE(csigr_bits), CSIGR_TO_IMODE(csigr_bits)); - pr_info("num channels = %i, write post fifo depth = %i, wins = %i, iowins = %i\n", - CSIGR_TO_DMAC(csigr_bits), wpdep, - CSIGR_TO_WINS(csigr_bits), CSIGR_TO_IOWINS(csigr_bits)); -} - static unsigned int mite_fifo_size(struct mite *mite, unsigned int channel) { unsigned int fcr_bits = readl(mite->mmio + MITE_FCR(channel)); @@ -739,29 +722,24 @@ static int mite_setup(struct comedi_device *dev, struct mite *mite, int i; u32 csigr_bits; unsigned int unknown_dma_burst_bits; + unsigned int wpdep; pci_set_master(mite->pcidev); mite->mmio = pci_ioremap_bar(mite->pcidev, 0); - if (!mite->mmio) { - dev_err(dev->class_dev, - "Failed to remap mite io memory address\n"); + if (!mite->mmio) return -ENOMEM; - } dev->mmio = pci_ioremap_bar(mite->pcidev, 1); - if (!dev->mmio) { - dev_err(dev->class_dev, - "Failed to remap daq io memory address\n"); + if (!dev->mmio) return -ENOMEM; - } daq_phys_addr = pci_resource_start(mite->pcidev, 1); length = pci_resource_len(mite->pcidev, 1); if (use_win1) { writel(0, mite->mmio + MITE_IODWBSR); - dev_info(dev->class_dev, - "using I/O Window Base Size register 1\n"); + dev_dbg(dev->class_dev, + "mite: using I/O Window Base Size register 1\n"); writel(daq_phys_addr | WENAB | MITE_IODWBSR_1_WSIZE_bits(length), mite->mmio + MITE_IODWBSR_1); @@ -792,7 +770,21 @@ static int mite_setup(struct comedi_device *dev, struct mite *mite, mite->num_channels, MAX_MITE_DMA_CHANNELS); mite->num_channels = MAX_MITE_DMA_CHANNELS; } - dump_chip_signature(csigr_bits); + + /* get the wpdep bits and convert it to the write port fifo depth */ + wpdep = CSIGR_TO_WPDEP(csigr_bits); + if (wpdep) + wpdep = BIT(wpdep); + + dev_dbg(dev->class_dev, + "mite: version = %i, type = %i, mite mode = %i, interface mode = %i\n", + CSIGR_TO_VER(csigr_bits), CSIGR_TO_TYPE(csigr_bits), + CSIGR_TO_MMODE(csigr_bits), CSIGR_TO_IMODE(csigr_bits)); + dev_dbg(dev->class_dev, + "mite: num channels = %i, write post fifo depth = %i, wins = %i, iowins = %i\n", + CSIGR_TO_DMAC(csigr_bits), wpdep, + CSIGR_TO_WINS(csigr_bits), CSIGR_TO_IOWINS(csigr_bits)); + for (i = 0; i < mite->num_channels; i++) { writel(CHOR_DMARESET, mite->mmio + MITE_CHOR(i)); /* disable interrupts */ @@ -802,7 +794,7 @@ static int mite_setup(struct comedi_device *dev, struct mite *mite, mite->mmio + MITE_CHCR(i)); } mite->fifo_size = mite_fifo_size(mite, 0); - dev_info(dev->class_dev, "fifo size is %i.\n", mite->fifo_size); + dev_dbg(dev->class_dev, "mite: fifo size is %i.\n", mite->fifo_size); return 0; } -- cgit v0.10.2 From fc53242394d3a5f73cae507361b9768243b2d5a2 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:47 -0700 Subject: staging: comedi: mite: move the mite ring functions For aesthetics, move the functions that allocate/free and initialize the mite dma ring. They are currently kind of scattered around the code. Add docbook comments for the exported functions. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index d51a29b..308ceb60 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -228,49 +228,6 @@ static unsigned int mite_fifo_size(struct mite *mite, unsigned int channel) return empty_count + full_count; } -struct mite_ring *mite_alloc_ring(struct mite *mite) -{ - struct mite_ring *ring; - - ring = kmalloc(sizeof(*ring), GFP_KERNEL); - if (!ring) - return NULL; - ring->hw_dev = get_device(&mite->pcidev->dev); - if (!ring->hw_dev) { - kfree(ring); - return NULL; - } - ring->n_links = 0; - ring->descs = NULL; - ring->dma_addr = 0; - return ring; -}; -EXPORT_SYMBOL_GPL(mite_alloc_ring); - -static void mite_free_dma_descs(struct mite_ring *ring) -{ - struct mite_dma_desc *descs = ring->descs; - - if (descs) { - dma_free_coherent(ring->hw_dev, - ring->n_links * sizeof(*descs), - descs, ring->dma_addr); - ring->descs = NULL; - ring->dma_addr = 0; - ring->n_links = 0; - } -} - -void mite_free_ring(struct mite_ring *ring) -{ - if (ring) { - mite_free_dma_descs(ring); - put_device(ring->hw_dev); - kfree(ring); - } -}; -EXPORT_SYMBOL_GPL(mite_free_ring); - struct mite_channel *mite_request_channel_in_range(struct mite *mite, struct mite_ring *ring, unsigned int min_channel, @@ -343,92 +300,6 @@ void mite_dma_arm(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_dma_arm); -/**************************************/ - -int mite_buf_change(struct mite_ring *ring, - struct comedi_subdevice *s) -{ - struct comedi_async *async = s->async; - struct mite_dma_desc *descs; - unsigned int n_links; - - mite_free_dma_descs(ring); - - if (async->prealloc_bufsz == 0) - return 0; - - n_links = async->prealloc_bufsz >> PAGE_SHIFT; - - descs = dma_alloc_coherent(ring->hw_dev, - n_links * sizeof(*descs), - &ring->dma_addr, GFP_KERNEL); - if (!descs) { - dev_err(s->device->class_dev, - "mite: ring buffer allocation failed\n"); - return -ENOMEM; - } - ring->descs = descs; - ring->n_links = n_links; - - return mite_init_ring_descriptors(ring, s, n_links << PAGE_SHIFT); -} -EXPORT_SYMBOL_GPL(mite_buf_change); - -/* - * initializes the ring buffer descriptors to provide correct DMA transfer links - * to the exact amount of memory required. When the ring buffer is allocated in - * mite_buf_change, the default is to initialize the ring to refer to the entire - * DMA data buffer. A command may call this function later to re-initialize and - * shorten the amount of memory that will be transferred. - */ -int mite_init_ring_descriptors(struct mite_ring *ring, - struct comedi_subdevice *s, - unsigned int nbytes) -{ - struct comedi_async *async = s->async; - struct mite_dma_desc *desc = NULL; - unsigned int n_full_links = nbytes >> PAGE_SHIFT; - unsigned int remainder = nbytes % PAGE_SIZE; - int i; - - dev_dbg(s->device->class_dev, - "mite: init ring buffer to %u bytes\n", nbytes); - - if ((n_full_links + (remainder > 0 ? 1 : 0)) > ring->n_links) { - dev_err(s->device->class_dev, - "mite: ring buffer too small for requested init\n"); - return -ENOMEM; - } - - /* We set the descriptors for all full links. */ - for (i = 0; i < n_full_links; ++i) { - desc = &ring->descs[i]; - desc->count = cpu_to_le32(PAGE_SIZE); - desc->addr = cpu_to_le32(async->buf_map->page_list[i].dma_addr); - desc->next = cpu_to_le32(ring->dma_addr + - (i + 1) * sizeof(*desc)); - } - - /* the last link is either a remainder or was a full link. */ - if (remainder > 0) { - desc = &ring->descs[i]; - /* set the lesser count for the remainder link */ - desc->count = cpu_to_le32(remainder); - desc->addr = cpu_to_le32(async->buf_map->page_list[i].dma_addr); - } - - /* Assign the last link->next to point back to the head of the list. */ - desc->next = cpu_to_le32(ring->dma_addr); - - /* - * barrier is meant to insure that all the writes to the dma descriptors - * have completed before the dma controller is commanded to read them - */ - smp_wmb(); - return 0; -} -EXPORT_SYMBOL_GPL(mite_init_ring_descriptors); - void mite_prep_dma(struct mite_channel *mite_chan, unsigned int num_device_bits, unsigned int num_memory_bits) { @@ -714,6 +585,151 @@ int mite_done(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_done); +/** + * mite_init_ring_descriptors() - Initialize a MITE dma ring descriptors. + * @ring: MITE dma ring. + * @s: COMEDI subdevice. + * @nbytes: the size of the dma ring (in bytes). + * + * Initializes the ring buffer descriptors to provide correct DMA transfer + * links to the exact amount of memory required. When the ring buffer is + * allocated by mite_buf_change(), the default is to initialize the ring + * to refer to the entire DMA data buffer. A command may call this function + * later to re-initialize and shorten the amount of memory that will be + * transferred. + */ +int mite_init_ring_descriptors(struct mite_ring *ring, + struct comedi_subdevice *s, + unsigned int nbytes) +{ + struct comedi_async *async = s->async; + struct mite_dma_desc *desc = NULL; + unsigned int n_full_links = nbytes >> PAGE_SHIFT; + unsigned int remainder = nbytes % PAGE_SIZE; + int i; + + dev_dbg(s->device->class_dev, + "mite: init ring buffer to %u bytes\n", nbytes); + + if ((n_full_links + (remainder > 0 ? 1 : 0)) > ring->n_links) { + dev_err(s->device->class_dev, + "mite: ring buffer too small for requested init\n"); + return -ENOMEM; + } + + /* We set the descriptors for all full links. */ + for (i = 0; i < n_full_links; ++i) { + desc = &ring->descs[i]; + desc->count = cpu_to_le32(PAGE_SIZE); + desc->addr = cpu_to_le32(async->buf_map->page_list[i].dma_addr); + desc->next = cpu_to_le32(ring->dma_addr + + (i + 1) * sizeof(*desc)); + } + + /* the last link is either a remainder or was a full link. */ + if (remainder > 0) { + desc = &ring->descs[i]; + /* set the lesser count for the remainder link */ + desc->count = cpu_to_le32(remainder); + desc->addr = cpu_to_le32(async->buf_map->page_list[i].dma_addr); + } + + /* Assign the last link->next to point back to the head of the list. */ + desc->next = cpu_to_le32(ring->dma_addr); + + /* + * barrier is meant to insure that all the writes to the dma descriptors + * have completed before the dma controller is commanded to read them + */ + smp_wmb(); + return 0; +} +EXPORT_SYMBOL_GPL(mite_init_ring_descriptors); + +static void mite_free_dma_descs(struct mite_ring *ring) +{ + struct mite_dma_desc *descs = ring->descs; + + if (descs) { + dma_free_coherent(ring->hw_dev, + ring->n_links * sizeof(*descs), + descs, ring->dma_addr); + ring->descs = NULL; + ring->dma_addr = 0; + ring->n_links = 0; + } +} + +/** + * mite_buf_change() - COMEDI subdevice (*buf_change) for a MITE dma ring. + * @ring: MITE dma ring. + * @s: COMEDI subdevice. + */ +int mite_buf_change(struct mite_ring *ring, struct comedi_subdevice *s) +{ + struct comedi_async *async = s->async; + struct mite_dma_desc *descs; + unsigned int n_links; + + mite_free_dma_descs(ring); + + if (async->prealloc_bufsz == 0) + return 0; + + n_links = async->prealloc_bufsz >> PAGE_SHIFT; + + descs = dma_alloc_coherent(ring->hw_dev, + n_links * sizeof(*descs), + &ring->dma_addr, GFP_KERNEL); + if (!descs) { + dev_err(s->device->class_dev, + "mite: ring buffer allocation failed\n"); + return -ENOMEM; + } + ring->descs = descs; + ring->n_links = n_links; + + return mite_init_ring_descriptors(ring, s, n_links << PAGE_SHIFT); +} +EXPORT_SYMBOL_GPL(mite_buf_change); + +/** + * mite_alloc_ring() - Allocate a MITE dma ring. + * @mite: MITE device. + */ +struct mite_ring *mite_alloc_ring(struct mite *mite) +{ + struct mite_ring *ring; + + ring = kmalloc(sizeof(*ring), GFP_KERNEL); + if (!ring) + return NULL; + ring->hw_dev = get_device(&mite->pcidev->dev); + if (!ring->hw_dev) { + kfree(ring); + return NULL; + } + ring->n_links = 0; + ring->descs = NULL; + ring->dma_addr = 0; + return ring; +} +EXPORT_SYMBOL_GPL(mite_alloc_ring); + +/** + * mite_free_ring() - Free a MITE dma ring and its descriptors. + * @ring: MITE dma ring. + */ +void mite_free_ring(struct mite_ring *ring) +{ + if (ring) { + mite_free_dma_descs(ring); + put_device(ring->hw_dev); + kfree(ring); + } +} +EXPORT_SYMBOL_GPL(mite_free_ring); + static int mite_setup(struct comedi_device *dev, struct mite *mite, bool use_win1) { diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 95b645e..b5b11d4 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -60,8 +60,6 @@ struct mite { spinlock_t lock; }; -struct mite_ring *mite_alloc_ring(struct mite *); -void mite_free_ring(struct mite_ring *ring); struct mite_channel *mite_request_channel_in_range(struct mite *, struct mite_ring *, unsigned int min_channel, @@ -86,9 +84,13 @@ int mite_done(struct mite_channel *mite_chan); void mite_prep_dma(struct mite_channel *mite_chan, unsigned int num_device_bits, unsigned int num_memory_bits); -int mite_buf_change(struct mite_ring *, struct comedi_subdevice *); + int mite_init_ring_descriptors(struct mite_ring *, struct comedi_subdevice *, unsigned int nbytes); +int mite_buf_change(struct mite_ring *, struct comedi_subdevice *); + +struct mite_ring *mite_alloc_ring(struct mite *); +void mite_free_ring(struct mite_ring *); struct mite *mite_attach(struct comedi_device *, bool use_win1); void mite_detach(struct mite *); -- cgit v0.10.2 From c3c860b395c7ca18bd30917b1cdbde66b7e090e0 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:48 -0700 Subject: staging: comedi: mite: tidy up mite dma channel request/release For aesthetics, make the actual "request" function static and change mite_request_channel_in_range() into a wrapper that calls the internal function. Change the inline function that requests any free channel into an export that also calls the internal function. Move the functions to a more logical spot in the code and add docbook comments for the exported functions. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 308ceb60..b1231ed 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -228,59 +228,6 @@ static unsigned int mite_fifo_size(struct mite *mite, unsigned int channel) return empty_count + full_count; } -struct mite_channel *mite_request_channel_in_range(struct mite *mite, - struct mite_ring *ring, - unsigned int min_channel, - unsigned int max_channel) -{ - struct mite_channel *mite_chan = NULL; - unsigned long flags; - int i; - - /* - * spin lock so mite_release_channel can be called safely - * from interrupts - */ - spin_lock_irqsave(&mite->lock, flags); - for (i = min_channel; i <= max_channel; ++i) { - mite_chan = &mite->channels[i]; - if (!mite_chan->ring) { - mite_chan->ring = ring; - break; - } - mite_chan = NULL; - } - spin_unlock_irqrestore(&mite->lock, flags); - return mite_chan; -} -EXPORT_SYMBOL_GPL(mite_request_channel_in_range); - -void mite_release_channel(struct mite_channel *mite_chan) -{ - struct mite *mite = mite_chan->mite; - unsigned long flags; - - /* spin lock to prevent races with mite_request_channel */ - spin_lock_irqsave(&mite->lock, flags); - if (mite_chan->ring) { - mite_dma_disarm(mite_chan); - mite_dma_reset(mite_chan); - /* - * disable all channel's interrupts (do it after disarm/reset so - * MITE_CHCR reg isn't changed while dma is still active!) - */ - writel(CHCR_CLR_DMA_IE | CHCR_CLR_LINKP_IE | - CHCR_CLR_SAR_IE | CHCR_CLR_DONE_IE | - CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE | - CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE, - mite->mmio + MITE_CHCR(mite_chan->channel)); - mite_chan->ring = NULL; - mmiowb(); - } - spin_unlock_irqrestore(&mite->lock, flags); -} -EXPORT_SYMBOL_GPL(mite_release_channel); - void mite_dma_arm(struct mite_channel *mite_chan) { struct mite *mite = mite_chan->mite; @@ -585,6 +532,90 @@ int mite_done(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_done); +static struct mite_channel *__mite_request_channel(struct mite *mite, + struct mite_ring *ring, + unsigned int min_channel, + unsigned int max_channel) +{ + struct mite_channel *mite_chan = NULL; + unsigned long flags; + int i; + + /* + * spin lock so mite_release_channel can be called safely + * from interrupts + */ + spin_lock_irqsave(&mite->lock, flags); + for (i = min_channel; i <= max_channel; ++i) { + mite_chan = &mite->channels[i]; + if (!mite_chan->ring) { + mite_chan->ring = ring; + break; + } + mite_chan = NULL; + } + spin_unlock_irqrestore(&mite->lock, flags); + return mite_chan; +} + +/** + * mite_request_channel_in_range() - Request a MITE dma channel. + * @mite: MITE device. + * @ring: MITE dma ring. + * @min_channel: minimum channel index to use. + * @max_channel: maximum channel index to use. + */ +struct mite_channel *mite_request_channel_in_range(struct mite *mite, + struct mite_ring *ring, + unsigned int min_channel, + unsigned int max_channel) +{ + return __mite_request_channel(mite, ring, min_channel, max_channel); +} +EXPORT_SYMBOL_GPL(mite_request_channel_in_range); + +/** + * mite_request_channel() - Request a MITE dma channel. + * @mite: MITE device. + * @ring: MITE dma ring. + */ +struct mite_channel *mite_request_channel(struct mite *mite, + struct mite_ring *ring) +{ + return __mite_request_channel(mite, ring, 0, mite->num_channels - 1); +} +EXPORT_SYMBOL_GPL(mite_request_channel); + +/** + * mite_release_channel() - Release a MITE dma channel. + * @mite_chan: MITE dma channel. + */ +void mite_release_channel(struct mite_channel *mite_chan) +{ + struct mite *mite = mite_chan->mite; + unsigned long flags; + + /* spin lock to prevent races with mite_request_channel */ + spin_lock_irqsave(&mite->lock, flags); + if (mite_chan->ring) { + mite_dma_disarm(mite_chan); + mite_dma_reset(mite_chan); + /* + * disable all channel's interrupts (do it after disarm/reset so + * MITE_CHCR reg isn't changed while dma is still active!) + */ + writel(CHCR_CLR_DMA_IE | CHCR_CLR_LINKP_IE | + CHCR_CLR_SAR_IE | CHCR_CLR_DONE_IE | + CHCR_CLR_MRDY_IE | CHCR_CLR_DRDY_IE | + CHCR_CLR_LC_IE | CHCR_CLR_CONT_RB_IE, + mite->mmio + MITE_CHCR(mite_chan->channel)); + mite_chan->ring = NULL; + mmiowb(); + } + spin_unlock_irqrestore(&mite->lock, flags); +} +EXPORT_SYMBOL_GPL(mite_release_channel); + /** * mite_init_ring_descriptors() - Initialize a MITE dma ring descriptors. * @ring: MITE dma ring. diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index b5b11d4..eedef66 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -60,20 +60,6 @@ struct mite { spinlock_t lock; }; -struct mite_channel *mite_request_channel_in_range(struct mite *, - struct mite_ring *, - unsigned int min_channel, - unsigned int max_channel); - -static inline struct mite_channel *mite_request_channel(struct mite *mite, - struct mite_ring *ring) -{ - return mite_request_channel_in_range(mite, ring, 0, - mite->num_channels - 1); -} - -void mite_release_channel(struct mite_channel *mite_chan); - void mite_dma_arm(struct mite_channel *mite_chan); void mite_dma_disarm(struct mite_channel *mite_chan); void mite_sync_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s); @@ -85,6 +71,13 @@ int mite_done(struct mite_channel *mite_chan); void mite_prep_dma(struct mite_channel *mite_chan, unsigned int num_device_bits, unsigned int num_memory_bits); +struct mite_channel *mite_request_channel_in_range(struct mite *, + struct mite_ring *, + unsigned int min_channel, + unsigned int max_channel); +struct mite_channel *mite_request_channel(struct mite *, struct mite_ring *); +void mite_release_channel(struct mite_channel *); + int mite_init_ring_descriptors(struct mite_ring *, struct comedi_subdevice *, unsigned int nbytes); int mite_buf_change(struct mite_ring *, struct comedi_subdevice *); -- cgit v0.10.2 From 71f53ea4ba9d2d8a563ad553439a545612ff2f2c Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:49 -0700 Subject: staging: comedi: mite: move mite_prep_dma() For aesthetics, move this functions to a more logical spot in the code and add a docbook comment for the exported function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index b1231ed..82f4fda 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -247,91 +247,6 @@ void mite_dma_arm(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_dma_arm); -void mite_prep_dma(struct mite_channel *mite_chan, - unsigned int num_device_bits, unsigned int num_memory_bits) -{ - struct mite *mite = mite_chan->mite; - unsigned int chcr, mcr, dcr, lkcr; - - mite_dma_reset(mite_chan); - - /* short link chaining mode */ - chcr = CHCR_SET_DMA_IE | CHCR_LINKSHORT | CHCR_SET_DONE_IE | - CHCR_BURSTEN; - /* - * Link Complete Interrupt: interrupt every time a link - * in MITE_RING is completed. This can generate a lot of - * extra interrupts, but right now we update the values - * of buf_int_ptr and buf_int_count at each interrupt. A - * better method is to poll the MITE before each user - * "read()" to calculate the number of bytes available. - */ - chcr |= CHCR_SET_LC_IE; - if (num_memory_bits == 32 && num_device_bits == 16) { - /* - * Doing a combined 32 and 16 bit byteswap gets the 16 bit - * samples into the fifo in the right order. Tested doing 32 bit - * memory to 16 bit device transfers to the analog out of a - * pxi-6281, which has mite version = 1, type = 4. This also - * works for dma reads from the counters on e-series boards. - */ - chcr |= CHCR_BYTE_SWAP_DEVICE | CHCR_BYTE_SWAP_MEMORY; - } - if (mite_chan->dir == COMEDI_INPUT) - chcr |= CHCR_DEV_TO_MEM; - - writel(chcr, mite->mmio + MITE_CHCR(mite_chan->channel)); - - /* to/from memory */ - mcr = mite_retry_limit(64) | CR_ASEQUP; - switch (num_memory_bits) { - case 8: - mcr |= CR_PSIZE8; - break; - case 16: - mcr |= CR_PSIZE16; - break; - case 32: - mcr |= CR_PSIZE32; - break; - default: - pr_warn("bug! invalid mem bit width for dma transfer\n"); - break; - } - writel(mcr, mite->mmio + MITE_MCR(mite_chan->channel)); - - /* from/to device */ - dcr = mite_retry_limit(64) | CR_ASEQUP; - dcr |= CR_PORTIO | CR_AMDEVICE | mite_drq_reqs(mite_chan->channel); - switch (num_device_bits) { - case 8: - dcr |= CR_PSIZE8; - break; - case 16: - dcr |= CR_PSIZE16; - break; - case 32: - dcr |= CR_PSIZE32; - break; - default: - pr_warn("bug! invalid dev bit width for dma transfer\n"); - break; - } - writel(dcr, mite->mmio + MITE_DCR(mite_chan->channel)); - - /* reset the DAR */ - writel(0, mite->mmio + MITE_DAR(mite_chan->channel)); - - /* the link is 32bits */ - lkcr = mite_retry_limit(64) | CR_ASEQUP | CR_PSIZE32; - writel(lkcr, mite->mmio + MITE_LKCR(mite_chan->channel)); - - /* starting address for link chaining */ - writel(mite_chan->ring->dma_addr, - mite->mmio + MITE_LKAR(mite_chan->channel)); -} -EXPORT_SYMBOL_GPL(mite_prep_dma); - static u32 mite_device_bytes_transferred(struct mite_channel *mite_chan) { struct mite *mite = mite_chan->mite; @@ -532,6 +447,97 @@ int mite_done(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_done); +/** + * mite_prep_dma() - Prepare a MITE dma channel for transfers. + * @mite_chan: MITE dma channel. + * @num_device_bits: device transfer size (8, 16, or 32-bits). + * @num_memory_bits: memory transfer size (8, 16, or 32-bits). + */ +void mite_prep_dma(struct mite_channel *mite_chan, + unsigned int num_device_bits, unsigned int num_memory_bits) +{ + struct mite *mite = mite_chan->mite; + unsigned int chcr, mcr, dcr, lkcr; + + mite_dma_reset(mite_chan); + + /* short link chaining mode */ + chcr = CHCR_SET_DMA_IE | CHCR_LINKSHORT | CHCR_SET_DONE_IE | + CHCR_BURSTEN; + /* + * Link Complete Interrupt: interrupt every time a link + * in MITE_RING is completed. This can generate a lot of + * extra interrupts, but right now we update the values + * of buf_int_ptr and buf_int_count at each interrupt. A + * better method is to poll the MITE before each user + * "read()" to calculate the number of bytes available. + */ + chcr |= CHCR_SET_LC_IE; + if (num_memory_bits == 32 && num_device_bits == 16) { + /* + * Doing a combined 32 and 16 bit byteswap gets the 16 bit + * samples into the fifo in the right order. Tested doing 32 bit + * memory to 16 bit device transfers to the analog out of a + * pxi-6281, which has mite version = 1, type = 4. This also + * works for dma reads from the counters on e-series boards. + */ + chcr |= CHCR_BYTE_SWAP_DEVICE | CHCR_BYTE_SWAP_MEMORY; + } + if (mite_chan->dir == COMEDI_INPUT) + chcr |= CHCR_DEV_TO_MEM; + + writel(chcr, mite->mmio + MITE_CHCR(mite_chan->channel)); + + /* to/from memory */ + mcr = mite_retry_limit(64) | CR_ASEQUP; + switch (num_memory_bits) { + case 8: + mcr |= CR_PSIZE8; + break; + case 16: + mcr |= CR_PSIZE16; + break; + case 32: + mcr |= CR_PSIZE32; + break; + default: + pr_warn("bug! invalid mem bit width for dma transfer\n"); + break; + } + writel(mcr, mite->mmio + MITE_MCR(mite_chan->channel)); + + /* from/to device */ + dcr = mite_retry_limit(64) | CR_ASEQUP; + dcr |= CR_PORTIO | CR_AMDEVICE | mite_drq_reqs(mite_chan->channel); + switch (num_device_bits) { + case 8: + dcr |= CR_PSIZE8; + break; + case 16: + dcr |= CR_PSIZE16; + break; + case 32: + dcr |= CR_PSIZE32; + break; + default: + pr_warn("bug! invalid dev bit width for dma transfer\n"); + break; + } + writel(dcr, mite->mmio + MITE_DCR(mite_chan->channel)); + + /* reset the DAR */ + writel(0, mite->mmio + MITE_DAR(mite_chan->channel)); + + /* the link is 32bits */ + lkcr = mite_retry_limit(64) | CR_ASEQUP | CR_PSIZE32; + writel(lkcr, mite->mmio + MITE_LKCR(mite_chan->channel)); + + /* starting address for link chaining */ + writel(mite_chan->ring->dma_addr, + mite->mmio + MITE_LKAR(mite_chan->channel)); +} +EXPORT_SYMBOL_GPL(mite_prep_dma); + static struct mite_channel *__mite_request_channel(struct mite *mite, struct mite_ring *ring, unsigned int min_channel, diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index eedef66..4017ddb 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -68,7 +68,7 @@ void mite_ack_linkc(struct mite_channel *, struct comedi_subdevice *, bool sync); int mite_done(struct mite_channel *mite_chan); -void mite_prep_dma(struct mite_channel *mite_chan, +void mite_prep_dma(struct mite_channel *, unsigned int num_device_bits, unsigned int num_memory_bits); struct mite_channel *mite_request_channel_in_range(struct mite *, -- cgit v0.10.2 From f5f4f0c7c8c66bac165e6a16d77dc26fbeb4967e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:50 -0700 Subject: staging: comedi: mite: move the mite dma arm/disarm/reset functions For aesthetics, move these functions to a more logical spot in the code and add docbook comments for the exported functions. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 82f4fda..ce479ad 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -213,12 +213,6 @@ static unsigned int mite_drq_reqs(unsigned int drq_line) return CR_REQS((drq_line & 0x3) | 0x4); } -static void mite_dma_reset(struct mite_channel *mite_chan) -{ - writel(CHOR_DMARESET | CHOR_FRESET, - mite_chan->mite->mmio + MITE_CHOR(mite_chan->channel)); -} - static unsigned int mite_fifo_size(struct mite *mite, unsigned int channel) { unsigned int fcr_bits = readl(mite->mmio + MITE_FCR(channel)); @@ -228,25 +222,6 @@ static unsigned int mite_fifo_size(struct mite *mite, unsigned int channel) return empty_count + full_count; } -void mite_dma_arm(struct mite_channel *mite_chan) -{ - struct mite *mite = mite_chan->mite; - unsigned long flags; - - /* - * memory barrier is intended to insure any twiddling with the buffer - * is done before writing to the mite to arm dma transfer - */ - smp_mb(); - spin_lock_irqsave(&mite->lock, flags); - mite_chan->done = 0; - /* arm */ - writel(CHOR_START, mite->mmio + MITE_CHOR(mite_chan->channel)); - mmiowb(); - spin_unlock_irqrestore(&mite->lock, flags); -} -EXPORT_SYMBOL_GPL(mite_dma_arm); - static u32 mite_device_bytes_transferred(struct mite_channel *mite_chan) { struct mite *mite = mite_chan->mite; @@ -298,15 +273,6 @@ static u32 mite_bytes_read_from_memory_ub(struct mite_channel *mite_chan) return mite_device_bytes_transferred(mite_chan) + in_transit_count; } -void mite_dma_disarm(struct mite_channel *mite_chan) -{ - struct mite *mite = mite_chan->mite; - - /* disarm */ - writel(CHOR_ABORT, mite->mmio + MITE_CHOR(mite_chan->channel)); -} -EXPORT_SYMBOL_GPL(mite_dma_disarm); - static void mite_sync_input_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s) { @@ -447,6 +413,48 @@ int mite_done(struct mite_channel *mite_chan) } EXPORT_SYMBOL_GPL(mite_done); +static void mite_dma_reset(struct mite_channel *mite_chan) +{ + writel(CHOR_DMARESET | CHOR_FRESET, + mite_chan->mite->mmio + MITE_CHOR(mite_chan->channel)); +} + +/** + * mite_dma_arm() - Start a MITE dma transfer. + * @mite_chan: MITE dma channel. + */ +void mite_dma_arm(struct mite_channel *mite_chan) +{ + struct mite *mite = mite_chan->mite; + unsigned long flags; + + /* + * memory barrier is intended to insure any twiddling with the buffer + * is done before writing to the mite to arm dma transfer + */ + smp_mb(); + spin_lock_irqsave(&mite->lock, flags); + mite_chan->done = 0; + /* arm */ + writel(CHOR_START, mite->mmio + MITE_CHOR(mite_chan->channel)); + mmiowb(); + spin_unlock_irqrestore(&mite->lock, flags); +} +EXPORT_SYMBOL_GPL(mite_dma_arm); + +/** + * mite_dma_disarm() - Stop a MITE dma transfer. + * @mite_chan: MITE dma channel. + */ +void mite_dma_disarm(struct mite_channel *mite_chan) +{ + struct mite *mite = mite_chan->mite; + + /* disarm */ + writel(CHOR_ABORT, mite->mmio + MITE_CHOR(mite_chan->channel)); +} +EXPORT_SYMBOL_GPL(mite_dma_disarm); + /** * mite_prep_dma() - Prepare a MITE dma channel for transfers. * @mite_chan: MITE dma channel. diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 4017ddb..c7ae3db 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -60,14 +60,15 @@ struct mite { spinlock_t lock; }; -void mite_dma_arm(struct mite_channel *mite_chan); -void mite_dma_disarm(struct mite_channel *mite_chan); void mite_sync_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s); u32 mite_bytes_in_transit(struct mite_channel *mite_chan); void mite_ack_linkc(struct mite_channel *, struct comedi_subdevice *, bool sync); int mite_done(struct mite_channel *mite_chan); +void mite_dma_arm(struct mite_channel *); +void mite_dma_disarm(struct mite_channel *); + void mite_prep_dma(struct mite_channel *, unsigned int num_device_bits, unsigned int num_memory_bits); -- cgit v0.10.2 From b21f1fc84cb6ad217e5d450e217767f37ca1dee5 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:51 -0700 Subject: staging: comedi: mite: document the remaining exported functions For aesthetics, add docbook comments for the exported functions. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index ce479ad..440090e 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -229,6 +229,10 @@ static u32 mite_device_bytes_transferred(struct mite_channel *mite_chan) return readl(mite->mmio + MITE_DAR(mite_chan->channel)); } +/** + * mite_bytes_in_transit() - Returns the number of unread bytes in the fifo. + * @mite_chan: MITE dma channel. + */ u32 mite_bytes_in_transit(struct mite_channel *mite_chan) { struct mite *mite = mite_chan->mite; @@ -349,6 +353,11 @@ static void mite_sync_output_dma(struct mite_channel *mite_chan, } } +/** + * mite_sync_dma() - Sync the MITE dma with the COMEDI async buffer. + * @mite_chan: MITE dma channel. + * @s: COMEDI subdevice. + */ void mite_sync_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s) { if (mite_chan->dir == COMEDI_INPUT) @@ -376,6 +385,14 @@ static unsigned int mite_get_status(struct mite_channel *mite_chan) return status; } +/** + * mite_ack_linkc() - Check and ack the LINKC interrupt, + * @mite_chan: MITE dma channel. + * @s: COMEDI subdevice. + * @sync: flag to force a mite_sync_dma(). + * + * This will also ack the DONE interrupt if active. + */ void mite_ack_linkc(struct mite_channel *mite_chan, struct comedi_subdevice *s, bool sync) @@ -399,6 +416,12 @@ void mite_ack_linkc(struct mite_channel *mite_chan, } EXPORT_SYMBOL_GPL(mite_ack_linkc); +/** + * mite_done() - Check is a MITE dma transfer is complete. + * @mite_chan: MITE dma channel. + * + * This will also ack the DONE interrupt if active. + */ int mite_done(struct mite_channel *mite_chan) { struct mite *mite = mite_chan->mite; diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index c7ae3db..b6349ae 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -60,11 +60,12 @@ struct mite { spinlock_t lock; }; -void mite_sync_dma(struct mite_channel *mite_chan, struct comedi_subdevice *s); -u32 mite_bytes_in_transit(struct mite_channel *mite_chan); -void mite_ack_linkc(struct mite_channel *, struct comedi_subdevice *, +u32 mite_bytes_in_transit(struct mite_channel *); + +void mite_sync_dma(struct mite_channel *, struct comedi_subdevice *); +void mite_ack_linkc(struct mite_channel *, struct comedi_subdevice *s, bool sync); -int mite_done(struct mite_channel *mite_chan); +int mite_done(struct mite_channel *); void mite_dma_arm(struct mite_channel *); void mite_dma_disarm(struct mite_channel *); -- cgit v0.10.2 From 5c69585837686e127762bd20658b18c14dfaf57c Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Mon, 2 May 2016 10:11:52 -0700 Subject: staging: comedi: mite: tidy up module init/exit Move the module_init()/module_exit() so they are in the prefered spot on the line after the function. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 440090e..b1c0860 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -945,12 +945,11 @@ static int __init mite_module_init(void) { return 0; } +module_init(mite_module_init); static void __exit mite_module_exit(void) { } - -module_init(mite_module_init); module_exit(mite_module_exit); MODULE_AUTHOR("Comedi http://www.comedi.org"); -- cgit v0.10.2 From d13829686bba3e06e2217f044beb8fd5a9abf792 Mon Sep 17 00:00:00 2001 From: Kangjie Lu Date: Tue, 3 May 2016 21:36:11 -0400 Subject: staging: wilc1000: fix infoleak in wilc_wfi_cfgoperations "mac" is an array allocated in stack without being initialized, and will be sent out via "nla_put". The dump_station() is supposed to initialize the mac address; otherwise, sensitive data in kernel stack will be leaked. To fix this, copy the mac address to it. Signed-off-by: Kangjie Lu Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 85031f7..4b04135 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -1804,6 +1804,7 @@ static int dump_station(struct wiphy *wiphy, struct net_device *dev, wilc_get_rssi(vif, &sinfo->signal); + memcpy(mac, priv->au8AssociatedBss, ETH_ALEN); return 0; } -- cgit v0.10.2 From a0ca97b808c06793fd9dfb69243ce945c9fff501 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Wed, 4 May 2016 14:41:22 +0900 Subject: staging: dgnc: Fix a NULL pointer dereference The error handling for print_drive after calling tty_alloc_driver() was needed. But there was error handling but too late for this. Error handling code moved after tty_alloc_driver() call. Fixes: 60b3109e5e2d ("staging: dgnc: use tty_alloc_driver instead of kcalloc") Reported-by: Dan Carpenter Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 2cecdb0..392d532 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -224,6 +224,11 @@ int dgnc_tty_register(struct dgnc_board *brd) TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_HARDWARE_BREAK); + if (IS_ERR(brd->print_driver)) { + rc = PTR_ERR(brd->print_driver); + goto unregister_serial_driver; + } + snprintf(brd->print_name, MAXTTYNAMELEN, "pr_dgnc_%d_", brd->boardnum); brd->print_driver->name = brd->print_name; @@ -235,11 +240,6 @@ int dgnc_tty_register(struct dgnc_board *brd) brd->print_driver->init_termios = DgncDefaultTermios; brd->print_driver->driver_name = DRVSTR; - if (IS_ERR(brd->print_driver)) { - rc = PTR_ERR(brd->print_driver); - goto unregister_serial_driver; - } - /* * Entry points for driver. Called by the kernel from * tty_io.c and n_tty.c. -- cgit v0.10.2 From 1e5a6fa96689232faf92b2352dd4bb0fda28b37e Mon Sep 17 00:00:00 2001 From: Bobi Jam Date: Wed, 4 May 2016 10:28:52 -0400 Subject: staging: lustre: nfs: don't panic NFS server if MDS fails to find FID When MDS fails to retrive the parent's fid, we'd handle it without crashing the NFS server. Signed-off-by: Bobi Jam Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3952 Reviewed-on: http://review.whamcloud.com/8459 Reviewed-by: Fan Yong Reviewed-by: wangdi Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/llite_nfs.c b/drivers/staging/lustre/lustre/llite/llite_nfs.c index 61cb5ff..c1eef61 100644 --- a/drivers/staging/lustre/lustre/llite/llite_nfs.c +++ b/drivers/staging/lustre/lustre/llite/llite_nfs.c @@ -322,11 +322,14 @@ static struct dentry *ll_get_parent(struct dentry *dchild) return ERR_PTR(rc); } body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); - LASSERT(body->valid & OBD_MD_FLID); - - CDEBUG(D_INFO, "parent for " DFID " is " DFID "\n", - PFID(ll_inode2fid(dir)), PFID(&body->fid1)); - + /* + * LU-3952: MDT may lost the FID of its parent, we should not crash + * the NFS server, ll_iget_for_nfs() will handle the error. + */ + if (body->valid & OBD_MD_FLID) { + CDEBUG(D_INFO, "parent for " DFID " is " DFID "\n", + PFID(ll_inode2fid(dir)), PFID(&body->fid1)); + } result = ll_iget_for_nfs(dir->i_sb, &body->fid1, NULL); ptlrpc_req_finished(req); -- cgit v0.10.2 From 219eeac841fb8fd70b73bec9c986c2d0044faf92 Mon Sep 17 00:00:00 2001 From: Alexander Boyko Date: Wed, 4 May 2016 10:28:53 -0400 Subject: staging: lustre: osc: Allow lock to be canceled at ENQ time A cl_lock can be canceled when it's in CLS_ENQUEUED state. We can't unuse this kind of lock in lov_lock_unuse() because it will bring this lock into CLS_NEW state and then confuse osc_lock_upcall(). Add a regression test case by Alexander Boyko. Signed-off-by: Jinshan Xiong Signed-off-by: Alexander Boyko Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3889 Reviewed-on: http://review.whamcloud.com/8405 Reviewed-by: Bobi Jam Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h index 1358af1..60034d3 100644 --- a/drivers/staging/lustre/lustre/include/obd_support.h +++ b/drivers/staging/lustre/lustre/include/obd_support.h @@ -321,6 +321,7 @@ extern char obd_jobid_var[]; #define OBD_FAIL_LDLM_AGL_DELAY 0x31a #define OBD_FAIL_LDLM_AGL_NOLOCK 0x31b #define OBD_FAIL_LDLM_OST_LVB 0x31c +#define OBD_FAIL_LDLM_ENQUEUE_HANG 0x31d /* LOCKLESS IO */ #define OBD_FAIL_LDLM_SET_CONTENTION 0x385 diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index df06f4f..47417f8 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -2201,6 +2201,9 @@ static int osc_enqueue_interpret(const struct lu_env *env, */ ldlm_lock_addref(lockh, mode); + /* Let cl_lock_state_wait fail with -ERESTARTSYS to unuse sublocks. */ + OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_ENQUEUE_HANG, 2); + /* Let CP AST to grant the lock first. */ OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_CP_ENQ_RACE, 1); -- cgit v0.10.2 From ae322e05ebc033b89d46e37df744f08240cf0a3d Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 4 May 2016 10:28:54 -0400 Subject: staging: lustre: lov: remove lov and lod stuff from obd.h Remove QOS related data structures from obd.h to the lov_internal.h. Remove the declarations of several functions that no longer exist. Signed-off-by: John L. Hammond Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675 Reviewed-on: http://review.whamcloud.com/8687 Reviewed-by: Andreas Dilger Reviewed-by: Jinshan Xiong Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h index d0c0c26..2d926e0 100644 --- a/drivers/staging/lustre/lustre/include/obd.h +++ b/drivers/staging/lustre/lustre/include/obd.h @@ -166,9 +166,6 @@ struct obd_info { obd_enqueue_update_f oi_cb_up; }; -void lov_stripe_lock(struct lov_stripe_md *md); -void lov_stripe_unlock(struct lov_stripe_md *md); - struct obd_type { struct list_head typ_chain; struct obd_ops *typ_dt_ops; @@ -390,45 +387,9 @@ struct ost_pool { struct rw_semaphore op_rw_sem; /* to protect ost_pool use */ }; -/* Round-robin allocator data */ -struct lov_qos_rr { - __u32 lqr_start_idx; /* start index of new inode */ - __u32 lqr_offset_idx; /* aliasing for start_idx */ - int lqr_start_count; /* reseed counter */ - struct ost_pool lqr_pool; /* round-robin optimized list */ - unsigned long lqr_dirty:1; /* recalc round-robin list */ -}; - /* allow statfs data caching for 1 second */ #define OBD_STATFS_CACHE_SECONDS 1 -struct lov_statfs_data { - struct obd_info lsd_oi; - struct obd_statfs lsd_statfs; -}; - -/* Stripe placement optimization */ -struct lov_qos { - struct list_head lq_oss_list; /* list of OSSs that targets use */ - struct rw_semaphore lq_rw_sem; - __u32 lq_active_oss_count; - unsigned int lq_prio_free; /* priority for free space */ - unsigned int lq_threshold_rr;/* priority for rr */ - struct lov_qos_rr lq_rr; /* round robin qos data */ - unsigned long lq_dirty:1, /* recalc qos data */ - lq_same_space:1,/* the ost's all have approx. - * the same space avail - */ - lq_reset:1, /* zero current penalties */ - lq_statfs_in_progress:1; /* statfs op in - progress */ - /* qos statfs data */ - struct lov_statfs_data *lq_statfs_data; - wait_queue_head_t lq_statfs_waitq; /* waitqueue to notify statfs - * requests completion - */ -}; - struct lov_tgt_desc { struct list_head ltd_kill; struct obd_uuid ltd_uuid; @@ -441,25 +402,6 @@ struct lov_tgt_desc { ltd_reap:1; /* should this target be deleted */ }; -/* Pool metadata */ -#define pool_tgt_size(_p) _p->pool_obds.op_size -#define pool_tgt_count(_p) _p->pool_obds.op_count -#define pool_tgt_array(_p) _p->pool_obds.op_array -#define pool_tgt_rw_sem(_p) _p->pool_obds.op_rw_sem - -struct pool_desc { - char pool_name[LOV_MAXPOOLNAME + 1]; /* name of pool */ - struct ost_pool pool_obds; /* pool members */ - atomic_t pool_refcount; /* pool ref. counter */ - struct lov_qos_rr pool_rr; /* round robin qos */ - struct hlist_node pool_hash; /* access by poolname */ - struct list_head pool_list; /* serial access */ - struct dentry *pool_debugfs_entry; /* file in debugfs */ - struct obd_device *pool_lobd; /* obd of the lov/lod to which - * this pool belongs - */ -}; - struct lov_obd { struct lov_desc desc; struct lov_tgt_desc **lov_tgts; /* sparse array */ @@ -467,8 +409,6 @@ struct lov_obd { struct mutex lov_lock; struct obd_connect_data lov_ocd; atomic_t lov_refcount; - __u32 lov_tgt_count; /* how many OBD's */ - __u32 lov_active_tgt_count; /* how many active */ __u32 lov_death_row;/* tgts scheduled to be deleted */ __u32 lov_tgt_size; /* size of tgts array */ int lov_connects; diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h index 9985855..ff01fe9 100644 --- a/drivers/staging/lustre/lustre/lov/lov_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_internal.h @@ -72,6 +72,21 @@ }) #endif +#define pool_tgt_size(p) ((p)->pool_obds.op_size) +#define pool_tgt_count(p) ((p)->pool_obds.op_count) +#define pool_tgt_array(p) ((p)->pool_obds.op_array) +#define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem) + +struct pool_desc { + char pool_name[LOV_MAXPOOLNAME + 1]; + struct ost_pool pool_obds; + atomic_t pool_refcount; + struct hlist_node pool_hash; /* access by poolname */ + struct list_head pool_list; /* serial access */ + struct dentry *pool_debugfs_entry; /* file in debugfs */ + struct obd_device *pool_lobd; /* owner */ +}; + struct lov_request { struct obd_info rq_oi; struct lov_request_set *rq_rqset; @@ -149,10 +164,6 @@ int lov_stripe_number(struct lov_stripe_md *lsm, u64 lov_off); pgoff_t lov_stripe_pgoff(struct lov_stripe_md *lsm, pgoff_t stripe_index, int stripe); -/* lov_qos.c */ -#define LOV_USES_ASSIGNED_STRIPE 0 -#define LOV_USES_DEFAULT_STRIPE 1 - /* lov_request.c */ int lov_update_common_set(struct lov_request_set *set, struct lov_request *req, int rc); @@ -178,6 +189,8 @@ int lov_fini_statfs_set(struct lov_request_set *set); int lov_statfs_interpret(struct ptlrpc_request_set *rqset, void *data, int rc); /* lov_obd.c */ +void lov_stripe_lock(struct lov_stripe_md *md); +void lov_stripe_unlock(struct lov_stripe_md *md); void lov_fix_desc(struct lov_desc *desc); void lov_fix_desc_stripe_size(__u64 *val); void lov_fix_desc_stripe_count(__u32 *val); diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c index 2de9255..bc9135a 100644 --- a/drivers/staging/lustre/lustre/lov/lov_obd.c +++ b/drivers/staging/lustre/lustre/lov/lov_obd.c @@ -2192,7 +2192,6 @@ void lov_stripe_lock(struct lov_stripe_md *md) LASSERT(md->lsm_lock_owner == 0); md->lsm_lock_owner = current_pid(); } -EXPORT_SYMBOL(lov_stripe_lock); void lov_stripe_unlock(struct lov_stripe_md *md) __releases(&md->lsm_lock) @@ -2201,7 +2200,6 @@ void lov_stripe_unlock(struct lov_stripe_md *md) md->lsm_lock_owner = 0; spin_unlock(&md->lsm_lock); } -EXPORT_SYMBOL(lov_stripe_unlock); static int lov_quotactl(struct obd_device *obd, struct obd_export *exp, struct obd_quotactl *oqctl) diff --git a/drivers/staging/lustre/lustre/lov/lov_pool.c b/drivers/staging/lustre/lustre/lov/lov_pool.c index 9ae1d6f..4254243 100644 --- a/drivers/staging/lustre/lustre/lov/lov_pool.c +++ b/drivers/staging/lustre/lustre/lov/lov_pool.c @@ -65,7 +65,6 @@ void lov_pool_putref(struct pool_desc *pool) LASSERT(hlist_unhashed(&pool->pool_hash)); LASSERT(list_empty(&pool->pool_list)); LASSERT(!pool->pool_debugfs_entry); - lov_ost_pool_free(&(pool->pool_rr.lqr_pool)); lov_ost_pool_free(&(pool->pool_obds)); kfree(pool); } @@ -424,11 +423,6 @@ int lov_pool_new(struct obd_device *obd, char *poolname) if (rc) goto out_err; - memset(&(new_pool->pool_rr), 0, sizeof(struct lov_qos_rr)); - rc = lov_ost_pool_init(&new_pool->pool_rr.lqr_pool, 0); - if (rc) - goto out_free_pool_obds; - INIT_HLIST_NODE(&new_pool->pool_hash); /* get ref for debugfs file */ @@ -469,13 +463,10 @@ out_err: list_del_init(&new_pool->pool_list); lov->lov_pool_count--; spin_unlock(&obd->obd_dev_lock); - ldebugfs_remove(&new_pool->pool_debugfs_entry); - - lov_ost_pool_free(&new_pool->pool_rr.lqr_pool); -out_free_pool_obds: lov_ost_pool_free(&new_pool->pool_obds); kfree(new_pool); + return rc; } @@ -543,8 +534,6 @@ int lov_pool_add(struct obd_device *obd, char *poolname, char *ostname) if (rc) goto out; - pool->pool_rr.lqr_dirty = 1; - CDEBUG(D_CONFIG, "Added %s to "LOV_POOLNAMEF" as member %d\n", ostname, poolname, pool_tgt_count(pool)); @@ -589,8 +578,6 @@ int lov_pool_remove(struct obd_device *obd, char *poolname, char *ostname) lov_ost_pool_remove(&pool->pool_obds, lov_idx); - pool->pool_rr.lqr_dirty = 1; - CDEBUG(D_CONFIG, "%s removed from "LOV_POOLNAMEF"\n", ostname, poolname); -- cgit v0.10.2 From 483eec0deba1505e437b639dd353f8cd4336133d Mon Sep 17 00:00:00 2001 From: wang di Date: Wed, 4 May 2016 10:28:55 -0400 Subject: staging: lustre: mdt: extra checking for getattr RPC. Check whether getattr RPC can hold layout MD(RMF_MDT_MD), in case the client sends some invalid RPC, which can cause panic on MDT. Client will retrieve cl_max_md_size/cl_default_md_size from MDS during mount process, so it will initialize cl_max_md_size/cl_default_md_size before sending getattr to MDS. Signed-off-by: wang di Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4222 Reviewed-on: http://review.whamcloud.com/8599 Reviewed-by: Fan Yong Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 64be2c1..44dd3f3 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -445,7 +445,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt, /* make root inode * XXX: move this to after cbd setup? */ - valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS; + valid = OBD_MD_FLGETATTR | OBD_MD_FLBLOCKS | OBD_MD_FLMODEASIZE; if (sbi->ll_flags & LL_SBI_RMT_CLIENT) valid |= OBD_MD_FLRMTPERM; else if (sbi->ll_flags & LL_SBI_ACL) diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c index 46e3a7506..86b7445 100644 --- a/drivers/staging/lustre/lustre/mdc/mdc_request.c +++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c @@ -142,9 +142,8 @@ static int mdc_getattr_common(struct obd_export *exp, CDEBUG(D_NET, "mode: %o\n", body->mode); + mdc_update_max_ea_from_body(exp, body); if (body->eadatasize != 0) { - mdc_update_max_ea_from_body(exp, body); - eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD, body->eadatasize); if (!eadata) -- cgit v0.10.2 From 221446263ee59c632bce0901d6293c34be1dcd57 Mon Sep 17 00:00:00 2001 From: Fan Yong Date: Wed, 4 May 2016 10:28:56 -0400 Subject: staging: lustre: fid: packing ost_idx in IDIF For a normal FID, we can know on which target the related object is allocated via querying FLDB; but it is not true for an IDIF. To locate the OST via the given IDIF, when the IDIF is generated, we pack the OST index in it. Then for any given FID, in spite of t is a normal FID or not, we has the method to know which target it belongs to. That is useful for LFSCK. For old IDIF, the OST index is not part of the IDIF, means that ifferent OSTs may have the same IDIFs, that may cause the IFID in LMA does not match the read FID. Under such case, we need to make some compatible check to avoid to trigger unexpected. tgt_validate_obdo() converts the ostid contained in the RPC body to fid and changes the "struct ost_id" union, then the users can access ost_id::oi_fid directly without call ostid_to_fid() again. It also contains some other fixing and cleanup. Signed-off-by: wang di Signed-off-by: Fan Yong Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3569 Reviewed-on: http://review.whamcloud.com/7053 Reviewed-by: Andreas Dilger Reviewed-by: Alex Zhuravlev Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h index a70545a..9c53c17 100644 --- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h +++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h @@ -584,7 +584,7 @@ static inline __u64 ostid_seq(const struct ost_id *ostid) if (fid_seq_is_mdt0(ostid->oi.oi_seq)) return FID_SEQ_OST_MDT0; - if (fid_seq_is_default(ostid->oi.oi_seq)) + if (unlikely(fid_seq_is_default(ostid->oi.oi_seq))) return FID_SEQ_LOV_DEFAULT; if (fid_is_idif(&ostid->oi_fid)) @@ -596,9 +596,12 @@ static inline __u64 ostid_seq(const struct ost_id *ostid) /* extract OST objid from a wire ost_id (id/seq) pair */ static inline __u64 ostid_id(const struct ost_id *ostid) { - if (fid_seq_is_mdt0(ostid_seq(ostid))) + if (fid_seq_is_mdt0(ostid->oi.oi_seq)) return ostid->oi.oi_id & IDIF_OID_MASK; + if (unlikely(fid_seq_is_default(ostid->oi.oi_seq))) + return ostid->oi.oi_id; + if (fid_is_idif(&ostid->oi_fid)) return fid_idif_id(fid_seq(&ostid->oi_fid), fid_oid(&ostid->oi_fid), 0); @@ -642,12 +645,22 @@ static inline void ostid_set_seq_llog(struct ost_id *oi) */ static inline void ostid_set_id(struct ost_id *oi, __u64 oid) { - if (fid_seq_is_mdt0(ostid_seq(oi))) { + if (fid_seq_is_mdt0(oi->oi.oi_seq)) { if (oid >= IDIF_MAX_OID) { CERROR("Bad %llu to set " DOSTID "\n", oid, POSTID(oi)); return; } oi->oi.oi_id = oid; + } else if (fid_is_idif(&oi->oi_fid)) { + if (oid >= IDIF_MAX_OID) { + CERROR("Bad %llu to set "DOSTID"\n", + oid, POSTID(oi)); + return; + } + oi->oi_fid.f_seq = fid_idif_seq(oid, + fid_idif_ost_idx(&oi->oi_fid)); + oi->oi_fid.f_oid = oid; + oi->oi_fid.f_ver = oid >> 48; } else { if (oid > OBIF_MAX_OID) { CERROR("Bad %llu to set " DOSTID "\n", oid, POSTID(oi)); @@ -657,25 +670,31 @@ static inline void ostid_set_id(struct ost_id *oi, __u64 oid) } } -static inline void ostid_inc_id(struct ost_id *oi) +static inline int fid_set_id(struct lu_fid *fid, __u64 oid) { - if (fid_seq_is_mdt0(ostid_seq(oi))) { - if (unlikely(ostid_id(oi) + 1 > IDIF_MAX_OID)) { - CERROR("Bad inc "DOSTID"\n", POSTID(oi)); - return; + if (unlikely(fid_seq_is_igif(fid->f_seq))) { + CERROR("bad IGIF, "DFID"\n", PFID(fid)); + return -EBADF; + } + + if (fid_is_idif(fid)) { + if (oid >= IDIF_MAX_OID) { + CERROR("Too large OID %#llx to set IDIF "DFID"\n", + (unsigned long long)oid, PFID(fid)); + return -EBADF; } - oi->oi.oi_id++; + fid->f_seq = fid_idif_seq(oid, fid_idif_ost_idx(fid)); + fid->f_oid = oid; + fid->f_ver = oid >> 48; } else { - oi->oi_fid.f_oid++; + if (oid > OBIF_MAX_OID) { + CERROR("Too large OID %#llx to set REG "DFID"\n", + (unsigned long long)oid, PFID(fid)); + return -EBADF; + } + fid->f_oid = oid; } -} - -static inline void ostid_dec_id(struct ost_id *oi) -{ - if (fid_seq_is_mdt0(ostid_seq(oi))) - oi->oi.oi_id--; - else - oi->oi_fid.f_oid--; + return 0; } /** @@ -690,30 +709,34 @@ static inline void ostid_dec_id(struct ost_id *oi) static inline int ostid_to_fid(struct lu_fid *fid, struct ost_id *ostid, __u32 ost_idx) { + __u64 seq = ostid_seq(ostid); + if (ost_idx > 0xffff) { CERROR("bad ost_idx, "DOSTID" ost_idx:%u\n", POSTID(ostid), ost_idx); return -EBADF; } - if (fid_seq_is_mdt0(ostid_seq(ostid))) { + if (fid_seq_is_mdt0(seq)) { + __u64 oid = ostid_id(ostid); + /* This is a "legacy" (old 1.x/2.early) OST object in "group 0" * that we map into the IDIF namespace. It allows up to 2^48 * objects per OST, as this is the object namespace that has * been in production for years. This can handle create rates * of 1M objects/s/OST for 9 years, or combinations thereof. */ - if (ostid_id(ostid) >= IDIF_MAX_OID) { + if (oid >= IDIF_MAX_OID) { CERROR("bad MDT0 id, " DOSTID " ost_idx:%u\n", POSTID(ostid), ost_idx); return -EBADF; } - fid->f_seq = fid_idif_seq(ostid_id(ostid), ost_idx); + fid->f_seq = fid_idif_seq(oid, ost_idx); /* truncate to 32 bits by assignment */ - fid->f_oid = ostid_id(ostid); + fid->f_oid = oid; /* in theory, not currently used */ - fid->f_ver = ostid_id(ostid) >> 48; - } else /* if (fid_seq_is_idif(seq) || fid_seq_is_norm(seq)) */ { + fid->f_ver = oid >> 48; + } else if (likely(!fid_seq_is_default(seq))) { /* This is either an IDIF object, which identifies objects across * all OSTs, or a regular FID. The IDIF namespace maps legacy * OST objects into the FID namespace. In both cases, we just @@ -1537,6 +1560,11 @@ static inline void lmm_oi_set_seq(struct ost_id *oi, __u64 seq) oi->oi.oi_seq = seq; } +static inline void lmm_oi_set_id(struct ost_id *oi, __u64 oid) +{ + oi->oi.oi_id = oid; +} + static inline __u64 lmm_oi_id(struct ost_id *oi) { return oi->oi.oi_id; diff --git a/drivers/staging/lustre/lustre/include/lustre_fid.h b/drivers/staging/lustre/lustre/include/lustre_fid.h index ab4a923..12e8b58 100644 --- a/drivers/staging/lustre/lustre/include/lustre_fid.h +++ b/drivers/staging/lustre/lustre/include/lustre_fid.h @@ -308,10 +308,10 @@ static inline int fid_seq_in_fldb(__u64 seq) fid_seq_is_root(seq) || fid_seq_is_dot(seq); } -static inline void lu_last_id_fid(struct lu_fid *fid, __u64 seq) +static inline void lu_last_id_fid(struct lu_fid *fid, __u64 seq, __u32 ost_idx) { if (fid_seq_is_mdt0(seq)) { - fid->f_seq = fid_idif_seq(0, 0); + fid->f_seq = fid_idif_seq(0, ost_idx); } else { LASSERTF(fid_seq_is_norm(seq) || fid_seq_is_echo(seq) || fid_seq_is_idif(seq), "%#llx\n", seq); @@ -498,19 +498,6 @@ static inline void ostid_build_res_name(struct ost_id *oi, } } -static inline void ostid_res_name_to_id(struct ost_id *oi, - struct ldlm_res_id *name) -{ - if (fid_seq_is_mdt0(name->name[LUSTRE_RES_ID_SEQ_OFF])) { - /* old resid */ - ostid_set_seq(oi, name->name[LUSTRE_RES_ID_VER_OID_OFF]); - ostid_set_id(oi, name->name[LUSTRE_RES_ID_SEQ_OFF]); - } else { - /* new resid */ - fid_extract_from_res_name(&oi->oi_fid, name); - } -} - /** * Return true if the resource is for the object identified by this id & group. */ @@ -546,7 +533,8 @@ static inline void ost_fid_build_resid(const struct lu_fid *fid, } static inline void ost_fid_from_resid(struct lu_fid *fid, - const struct ldlm_res_id *name) + const struct ldlm_res_id *name, + int ost_idx) { if (fid_seq_is_mdt0(name->name[LUSTRE_RES_ID_VER_OID_OFF])) { /* old resid */ @@ -554,7 +542,7 @@ static inline void ost_fid_from_resid(struct lu_fid *fid, ostid_set_seq(&oi, name->name[LUSTRE_RES_ID_VER_OID_OFF]); ostid_set_id(&oi, name->name[LUSTRE_RES_ID_SEQ_OFF]); - ostid_to_fid(fid, &oi, 0); + ostid_to_fid(fid, &oi, ost_idx); } else { /* new resid */ fid_extract_from_res_name(fid, name); -- cgit v0.10.2 From 4fd9a8e937368781ac830402a3bcb87646999946 Mon Sep 17 00:00:00 2001 From: Andreas Dilger Date: Wed, 4 May 2016 10:28:57 -0400 Subject: staging: lustre: debug: clean up console messages Clean up overly verbose console error messages, improve others. Signed-off-by: Andreas Dilger Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-1095 Reviewed-on: http://review.whamcloud.com/8617 Reviewed-by: Faccini Bruno Reviewed-by: Bob Glossman Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 44dd3f3..96c7e9f 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -897,10 +897,8 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt) cfg->cfg_callback = class_config_llog_handler; /* set up client obds */ err = lustre_process_log(sb, profilenm, cfg); - if (err < 0) { - CERROR("Unable to process log: %d\n", err); + if (err < 0) goto out_free; - } /* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */ lprof = class_get_profile(profilenm); diff --git a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c index 9474aa9..e0c90ad 100644 --- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c +++ b/drivers/staging/lustre/lustre/obdclass/obd_mount.c @@ -102,7 +102,7 @@ int lustre_process_log(struct super_block *sb, char *logname, LCONSOLE_ERROR_MSG(0x15b, "%s: The configuration from log '%s' failed from the MGS (%d). Make sure this client and the MGS are running compatible versions of Lustre.\n", mgc->obd_name, logname, rc); - if (rc) + else if (rc) LCONSOLE_ERROR_MSG(0x15c, "%s: The configuration from log '%s' failed (%d). This may be the result of communication errors between this node and the MGS, a bad configuration, or other errors. See the syslog for more information.\n", mgc->obd_name, logname, rc); -- cgit v0.10.2 From 2ff1d8fbba493538e0d0c4f0e2dcd9c4bb0eb21a Mon Sep 17 00:00:00 2001 From: Niu Yawei Date: Wed, 4 May 2016 10:28:58 -0400 Subject: staging: lustre: ptlrpc: fix nrs cleanup When service start failed due to short of memory, the cleanup code could operate on uninitialized structure and cause crash at the end. This patch fix the nrs_svcpt_cleanup_locked() to perform cleanup only on the nrs which has been properly initialized. Signed-off-by: Niu Yawei Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3772 Reviewed-on: http://review.whamcloud.com/7410 Reviewed-by: Andreas Dilger Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/ptlrpc/nrs.c b/drivers/staging/lustre/lustre/ptlrpc/nrs.c index 99ff6e8..c444f51 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/nrs.c +++ b/drivers/staging/lustre/lustre/ptlrpc/nrs.c @@ -975,7 +975,11 @@ static void nrs_svcpt_cleanup_locked(struct ptlrpc_service_part *svcpt) LASSERT(mutex_is_locked(&nrs_core.nrs_mutex)); again: - nrs = nrs_svcpt2nrs(svcpt, hp); + /* scp_nrs_hp could be NULL due to short of memory. */ + nrs = hp ? svcpt->scp_nrs_hp : &svcpt->scp_nrs_reg; + /* check the nrs_svcpt to see if nrs is initialized. */ + if (!nrs || !nrs->nrs_svcpt) + return; nrs->nrs_stopping = 1; list_for_each_entry_safe(policy, tmp, &nrs->nrs_policy_list, pol_list) { -- cgit v0.10.2 From ebde64c0657709e7260d2e73583309761e904dd7 Mon Sep 17 00:00:00 2001 From: wang di Date: Wed, 4 May 2016 10:28:59 -0400 Subject: staging: lustre: fid: init FID client for OSP on MDT. Initialize FID client for OSP on MDT. Signed-off-by: wang di Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3529 Reviewed-on: http://review.whamcloud.com/7158 Reviewed-by: John L. Hammond Reviewed-by: Alex Zhuravlev Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/fid/fid_request.c b/drivers/staging/lustre/lustre/fid/fid_request.c index 32e4d95..3a4df62 100644 --- a/drivers/staging/lustre/lustre/fid/fid_request.c +++ b/drivers/staging/lustre/lustre/fid/fid_request.c @@ -102,10 +102,13 @@ static int seq_client_rpc(struct lu_client_seq *seq, req->rq_no_delay = req->rq_no_resend = 1; debug_mask = D_CONSOLE; } else { - if (seq->lcs_type == LUSTRE_SEQ_METADATA) + if (seq->lcs_type == LUSTRE_SEQ_METADATA) { + req->rq_reply_portal = MDC_REPLY_PORTAL; req->rq_request_portal = SEQ_METADATA_PORTAL; - else + } else { + req->rq_reply_portal = OSC_REPLY_PORTAL; req->rq_request_portal = SEQ_DATA_PORTAL; + } debug_mask = D_INFO; } -- cgit v0.10.2 From 51a1c3804b06bd3877e3c5e886ea39b1eb891695 Mon Sep 17 00:00:00 2001 From: "John L. Hammond" Date: Wed, 4 May 2016 10:29:00 -0400 Subject: staging: lustre: lov: remove unused lov obd functions Remove the unused lov functions lov_get_reqset, lov_check_index_in_pool, and lov_find_pool functions. Remove unused data structures. Signed-off-by: John L. Hammond Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675 Reviewed-on: http://review.whamcloud.com/5581 Reviewed-by: Alex Zhuravlev Reviewed-by: Andreas Dilger Reviewed-by: James Simmons Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c index b652940..460f0fa 100644 --- a/drivers/staging/lustre/lustre/lov/lov_ea.c +++ b/drivers/staging/lustre/lustre/lov/lov_ea.c @@ -48,11 +48,6 @@ #include "lov_internal.h" -struct lovea_unpack_args { - struct lov_stripe_md *lsm; - int cursor; -}; - static int lsm_lmm_verify_common(struct lov_mds_md *lmm, int lmm_bytes, __u16 stripe_count) { diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h index ff01fe9..eef9afa 100644 --- a/drivers/staging/lustre/lustre/lov/lov_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_internal.h @@ -103,7 +103,6 @@ struct lov_request { }; struct lov_request_set { - struct ldlm_enqueue_info *set_ei; struct obd_info *set_oi; atomic_t set_refcount; struct obd_export *set_exp; @@ -117,10 +116,8 @@ struct lov_request_set { atomic_t set_finish_checked; struct llog_cookie *set_cookies; int set_cookie_sent; - struct obd_trans_info *set_oti; struct list_head set_list; wait_queue_head_t set_waitq; - spinlock_t set_lock; }; extern struct kmem_cache *lov_oinfo_slab; @@ -129,12 +126,6 @@ extern struct lu_kmem_descr lov_caches[]; void lov_finish_set(struct lov_request_set *set); -static inline void lov_get_reqset(struct lov_request_set *set) -{ - LASSERT(atomic_read(&set->set_refcount) > 0); - atomic_inc(&set->set_refcount); -} - static inline void lov_put_reqset(struct lov_request_set *set) { if (atomic_dec_and_test(&set->set_refcount)) @@ -246,8 +237,6 @@ int lov_pool_new(struct obd_device *obd, char *poolname); int lov_pool_del(struct obd_device *obd, char *poolname); int lov_pool_add(struct obd_device *obd, char *poolname, char *ostname); int lov_pool_remove(struct obd_device *obd, char *poolname, char *ostname); -struct pool_desc *lov_find_pool(struct lov_obd *lov, char *poolname); -int lov_check_index_in_pool(__u32 idx, struct pool_desc *pool); void lov_pool_putref(struct pool_desc *pool); static inline struct lov_stripe_md *lsm_addref(struct lov_stripe_md *lsm) diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c index bc9135a..e15ef2e 100644 --- a/drivers/staging/lustre/lustre/lov/lov_obd.c +++ b/drivers/staging/lustre/lustre/lov/lov_obd.c @@ -123,7 +123,6 @@ static int lov_set_osc_active(struct obd_device *obd, struct obd_uuid *uuid, static int lov_notify(struct obd_device *obd, struct obd_device *watched, enum obd_notify_event ev, void *data); -#define MAX_STRING_SIZE 128 int lov_connect_obd(struct obd_device *obd, __u32 index, int activate, struct obd_connect_data *data) { diff --git a/drivers/staging/lustre/lustre/lov/lov_pool.c b/drivers/staging/lustre/lustre/lov/lov_pool.c index 4254243..690292e 100644 --- a/drivers/staging/lustre/lustre/lov/lov_pool.c +++ b/drivers/staging/lustre/lustre/lov/lov_pool.c @@ -586,50 +586,3 @@ out: lov_pool_putref(pool); return rc; } - -int lov_check_index_in_pool(__u32 idx, struct pool_desc *pool) -{ - int i, rc; - - /* caller may no have a ref on pool if it got the pool - * without calling lov_find_pool() (e.g. go through the lov pool - * list) - */ - lov_pool_getref(pool); - - down_read(&pool_tgt_rw_sem(pool)); - - for (i = 0; i < pool_tgt_count(pool); i++) { - if (pool_tgt_array(pool)[i] == idx) { - rc = 0; - goto out; - } - } - rc = -ENOENT; -out: - up_read(&pool_tgt_rw_sem(pool)); - - lov_pool_putref(pool); - return rc; -} - -struct pool_desc *lov_find_pool(struct lov_obd *lov, char *poolname) -{ - struct pool_desc *pool; - - pool = NULL; - if (poolname[0] != '\0') { - pool = cfs_hash_lookup(lov->lov_pools_hash_body, poolname); - if (!pool) - CWARN("Request for an unknown pool ("LOV_POOLNAMEF")\n", - poolname); - if (pool && (pool_tgt_count(pool) == 0)) { - CWARN("Request for an empty pool ("LOV_POOLNAMEF")\n", - poolname); - /* pool is ignored, so we remove ref on it */ - lov_pool_putref(pool); - pool = NULL; - } - } - return pool; -} diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c index 4d7073e..1be4b92 100644 --- a/drivers/staging/lustre/lustre/lov/lov_request.c +++ b/drivers/staging/lustre/lustre/lov/lov_request.c @@ -52,7 +52,6 @@ static void lov_init_set(struct lov_request_set *set) INIT_LIST_HEAD(&set->set_list); atomic_set(&set->set_refcount, 1); init_waitqueue_head(&set->set_waitq); - spin_lock_init(&set->set_lock); } void lov_finish_set(struct lov_request_set *set) @@ -362,7 +361,6 @@ int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo, set->set_oi = oinfo; set->set_oi->oi_md = lsm; set->set_oi->oi_oa = src_oa; - set->set_oti = oti; if (oti && src_oa->o_valid & OBD_MD_FLCOOKIE) set->set_cookies = oti->oti_logcookies; @@ -479,7 +477,6 @@ int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo, lov_init_set(set); set->set_exp = exp; - set->set_oti = oti; set->set_oi = oinfo; if (oti && oinfo->oi_oa->o_valid & OBD_MD_FLCOOKIE) set->set_cookies = oti->oti_logcookies; -- cgit v0.10.2 From 8daab0a4dea3655ba336a24d7258a94c256e03b1 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Thu, 5 May 2016 14:53:00 -0400 Subject: staging: lustre: o2iblnd: rename kib_fmr_pool_t Rename kib_fmr_pool_t named pool to fpo. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5783 Reviewed-on: http://review.whamcloud.com/17606 Reviewed-by: James Simmons Reviewed-by: Doug Oucharek Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index e89c2a1..60647bc 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -1298,27 +1298,27 @@ struct ib_mr *kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev, kib_rdma_desc_t *rd, return hdev->ibh_mrs; } -static void kiblnd_destroy_fmr_pool(kib_fmr_pool_t *pool) +static void kiblnd_destroy_fmr_pool(kib_fmr_pool_t *fpo) { - LASSERT(!pool->fpo_map_count); + LASSERT(!fpo->fpo_map_count); - if (pool->fpo_fmr_pool) - ib_destroy_fmr_pool(pool->fpo_fmr_pool); + if (fpo->fpo_fmr_pool) + ib_destroy_fmr_pool(fpo->fpo_fmr_pool); - if (pool->fpo_hdev) - kiblnd_hdev_decref(pool->fpo_hdev); + if (fpo->fpo_hdev) + kiblnd_hdev_decref(fpo->fpo_hdev); - LIBCFS_FREE(pool, sizeof(*pool)); + LIBCFS_FREE(fpo, sizeof(*fpo)); } static void kiblnd_destroy_fmr_pool_list(struct list_head *head) { - kib_fmr_pool_t *pool; + kib_fmr_pool_t *fpo; while (!list_empty(head)) { - pool = list_entry(head->next, kib_fmr_pool_t, fpo_list); - list_del(&pool->fpo_list); - kiblnd_destroy_fmr_pool(pool); + fpo = list_entry(head->next, kib_fmr_pool_t, fpo_list); + list_del(&fpo->fpo_list); + kiblnd_destroy_fmr_pool(fpo); } } -- cgit v0.10.2 From 0d33ec5f95fe068d7e96b6e7ed9216de93f6b5b0 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Thu, 5 May 2016 14:53:01 -0400 Subject: staging: lustre: o2iblnd: Use list_for_each_entry_safe in kiblnd_destroy_fmr_pool_list Doubly linked lists which are iterated using list_empty and list_entry macros have been replaced with list_for_each_entry_safe macro. This makes the iteration simpler and more readable. This patch replaces the while loop containing list_empty and list_entry with list_for_each_entry_safe. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5783 Reviewed-on: http://review.whamcloud.com/17606 Reviewed-by: James Simmons Reviewed-by: Doug Oucharek Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 60647bc..4a4b68c 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -1313,10 +1313,9 @@ static void kiblnd_destroy_fmr_pool(kib_fmr_pool_t *fpo) static void kiblnd_destroy_fmr_pool_list(struct list_head *head) { - kib_fmr_pool_t *fpo; + kib_fmr_pool_t *fpo, *tmp; - while (!list_empty(head)) { - fpo = list_entry(head->next, kib_fmr_pool_t, fpo_list); + list_for_each_entry_safe(fpo, tmp, head, fpo_list) { list_del(&fpo->fpo_list); kiblnd_destroy_fmr_pool(fpo); } -- cgit v0.10.2 From 87f4f6f53424ed010bc45fe2accb4582cc490b58 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Thu, 5 May 2016 14:53:02 -0400 Subject: staging: lustre: o2iblnd: create union to contain FMR Create an union to contain the FMR pool structure. This is for the preparation of adding handling Fast Registeration support. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5783 Reviewed-on: http://review.whamcloud.com/17606 Reviewed-by: James Simmons Reviewed-by: Doug Oucharek Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 4a4b68c..26d8a11 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -1302,8 +1302,8 @@ static void kiblnd_destroy_fmr_pool(kib_fmr_pool_t *fpo) { LASSERT(!fpo->fpo_map_count); - if (fpo->fpo_fmr_pool) - ib_destroy_fmr_pool(fpo->fpo_fmr_pool); + if (fpo->fmr.fpo_fmr_pool) + ib_destroy_fmr_pool(fpo->fmr.fpo_fmr_pool); if (fpo->fpo_hdev) kiblnd_hdev_decref(fpo->fpo_hdev); @@ -1359,9 +1359,9 @@ static int kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, fpo->fpo_hdev = kiblnd_current_hdev(dev); - fpo->fpo_fmr_pool = ib_create_fmr_pool(fpo->fpo_hdev->ibh_pd, ¶m); - if (IS_ERR(fpo->fpo_fmr_pool)) { - rc = PTR_ERR(fpo->fpo_fmr_pool); + fpo->fmr.fpo_fmr_pool = ib_create_fmr_pool(fpo->fpo_hdev->ibh_pd, ¶m); + if (IS_ERR(fpo->fmr.fpo_fmr_pool)) { + rc = PTR_ERR(fpo->fmr.fpo_fmr_pool); CERROR("Failed to create FMR pool: %d\n", rc); kiblnd_hdev_decref(fpo->fpo_hdev); @@ -1452,7 +1452,7 @@ void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status) LASSERT(!rc); if (status) { - rc = ib_flush_fmr_pool(fpo->fpo_fmr_pool); + rc = ib_flush_fmr_pool(fpo->fmr.fpo_fmr_pool); LASSERT(!rc); } @@ -1494,7 +1494,7 @@ int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages, fpo->fpo_map_count++; spin_unlock(&fps->fps_lock); - pfmr = ib_fmr_pool_map_phys(fpo->fpo_fmr_pool, + pfmr = ib_fmr_pool_map_phys(fpo->fmr.fpo_fmr_pool, pages, npages, iov); if (likely(!IS_ERR(pfmr))) { fmr->fmr_pool = fpo; diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index bfcbdd1..0120170 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -295,15 +295,19 @@ typedef struct { struct list_head fpo_list; /* chain on pool list */ struct kib_hca_dev *fpo_hdev; /* device for this pool */ kib_fmr_poolset_t *fpo_owner; /* owner of this pool */ - struct ib_fmr_pool *fpo_fmr_pool; /* IB FMR pool */ + union { + struct { + struct ib_fmr_pool *fpo_fmr_pool; /* IB FMR pool */ + } fmr; + }; unsigned long fpo_deadline; /* deadline of this pool */ int fpo_failed; /* fmr pool is failed */ int fpo_map_count; /* # of mapped FMR */ } kib_fmr_pool_t; typedef struct { - struct ib_pool_fmr *fmr_pfmr; /* IB pool fmr */ kib_fmr_pool_t *fmr_pool; /* pool of FMR */ + struct ib_pool_fmr *fmr_pfmr; /* IB pool fmr */ } kib_fmr_t; typedef struct kib_net { -- cgit v0.10.2 From f66fb15996fb9d75c552b6d1dafe71b5737261d9 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Thu, 5 May 2016 14:53:03 -0400 Subject: staging: lustre: o2iblnd: break up kiblnd_create_fmr_pool Break the function kiblnd_create_fmr_pool() into two functions, with the new function called kiblnd_alloc_fmr_pool(). The function kiblnd_create_fmr_pool() will be used as the front end to allocate any type of pool. The new function will used to create specifically FMR pools. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5783 Reviewed-on: http://review.whamcloud.com/17606 Reviewed-by: James Simmons Reviewed-by: Doug Oucharek Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 26d8a11..9c30915 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -1335,12 +1335,8 @@ static int kiblnd_fmr_flush_trigger(int ncpts) return max(IBLND_FMR_POOL_FLUSH, size); } -static int kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, - kib_fmr_pool_t **pp_fpo) +static int kiblnd_alloc_fmr_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t *fpo) { - /* FMR pool for RDMA */ - kib_dev_t *dev = fps->fps_net->ibn_dev; - kib_fmr_pool_t *fpo; struct ib_fmr_pool_param param = { .max_pages_per_fmr = LNET_MAX_PAYLOAD / PAGE_SIZE, .page_shift = PAGE_SHIFT, @@ -1351,6 +1347,26 @@ static int kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, .flush_function = NULL, .flush_arg = NULL, .cache = !!*kiblnd_tunables.kib_fmr_cache}; + int rc = 0; + + fpo->fmr.fpo_fmr_pool = ib_create_fmr_pool(fpo->fpo_hdev->ibh_pd, + ¶m); + if (IS_ERR(fpo->fmr.fpo_fmr_pool)) { + rc = PTR_ERR(fpo->fmr.fpo_fmr_pool); + if (rc != -ENOSYS) + CERROR("Failed to create FMR pool: %d\n", rc); + else + CERROR("FMRs are not supported\n"); + } + + return rc; +} + +static int kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, + kib_fmr_pool_t **pp_fpo) +{ + kib_dev_t *dev = fps->fps_net->ibn_dev; + kib_fmr_pool_t *fpo; int rc; LIBCFS_CPT_ALLOC(fpo, lnet_cpt_table(), fps->fps_cpt, sizeof(*fpo)); @@ -1359,21 +1375,32 @@ static int kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, fpo->fpo_hdev = kiblnd_current_hdev(dev); - fpo->fmr.fpo_fmr_pool = ib_create_fmr_pool(fpo->fpo_hdev->ibh_pd, ¶m); - if (IS_ERR(fpo->fmr.fpo_fmr_pool)) { - rc = PTR_ERR(fpo->fmr.fpo_fmr_pool); - CERROR("Failed to create FMR pool: %d\n", rc); - - kiblnd_hdev_decref(fpo->fpo_hdev); - LIBCFS_FREE(fpo, sizeof(*fpo)); - return rc; + /* Check for FMR support */ + if (fpo->fpo_hdev->ibh_ibdev->alloc_fmr && + fpo->fpo_hdev->ibh_ibdev->dealloc_fmr && + fpo->fpo_hdev->ibh_ibdev->map_phys_fmr && + fpo->fpo_hdev->ibh_ibdev->unmap_fmr) { + LCONSOLE_INFO("Using FMR for registration\n"); + } else { + rc = -ENOSYS; + LCONSOLE_ERROR_MSG(rc, "IB device does not support FMRs, can't register memory\n"); + goto out_fpo; } + rc = kiblnd_alloc_fmr_pool(fps, fpo); + if (rc) + goto out_fpo; + fpo->fpo_deadline = cfs_time_shift(IBLND_POOL_DEADLINE); - fpo->fpo_owner = fps; + fpo->fpo_owner = fps; *pp_fpo = fpo; return 0; + +out_fpo: + kiblnd_hdev_decref(fpo->fpo_hdev); + LIBCFS_FREE(fpo, sizeof(*fpo)); + return rc; } static void kiblnd_fail_fmr_poolset(kib_fmr_poolset_t *fps, -- cgit v0.10.2 From c1b2e0b517d0eba6936c69fa6d9a1a727534f879 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Thu, 5 May 2016 14:53:04 -0400 Subject: staging: lustre: o2iblnd: cache FMR key in kib_fmr_t Move the FMR key handling from kiblnd_fmr_map_tx() to the function kiblnd_fmr_pool_map(). This will allow the function kiblnd_fmr_map_tx() to handle keys for both FMR and Fast Registration. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5783 Reviewed-on: http://review.whamcloud.com/17606 Reviewed-by: James Simmons Reviewed-by: Doug Oucharek Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 9c30915..491bd6c 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -1506,7 +1506,7 @@ void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status) } int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages, - __u64 iov, kib_fmr_t *fmr) + __u32 nob, __u64 iov, bool is_rx, kib_fmr_t *fmr) { struct ib_pool_fmr *pfmr; kib_fmr_pool_t *fpo; @@ -1524,16 +1524,19 @@ int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages, pfmr = ib_fmr_pool_map_phys(fpo->fmr.fpo_fmr_pool, pages, npages, iov); if (likely(!IS_ERR(pfmr))) { - fmr->fmr_pool = fpo; + fmr->fmr_key = is_rx ? pfmr->fmr->rkey : + pfmr->fmr->lkey; fmr->fmr_pfmr = pfmr; + fmr->fmr_pool = fpo; return 0; } + rc = PTR_ERR(pfmr); spin_lock(&fps->fps_lock); fpo->fpo_map_count--; - if (PTR_ERR(pfmr) != -EAGAIN) { + if (rc != -EAGAIN) { spin_unlock(&fps->fps_lock); - return PTR_ERR(pfmr); + return rc; } /* EAGAIN and ... */ diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index 0120170..90c8aa5 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -308,6 +308,7 @@ typedef struct { typedef struct { kib_fmr_pool_t *fmr_pool; /* pool of FMR */ struct ib_pool_fmr *fmr_pfmr; /* IB pool fmr */ + u32 fmr_key; } kib_fmr_t; typedef struct kib_net { @@ -959,8 +960,8 @@ void kiblnd_unmap_rx_descs(kib_conn_t *conn); void kiblnd_pool_free_node(kib_pool_t *pool, struct list_head *node); struct list_head *kiblnd_pool_alloc_node(kib_poolset_t *ps); -int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, - int npages, __u64 iov, kib_fmr_t *fmr); +int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages, + __u32 nob, __u64 iov, bool is_rx, kib_fmr_t *fmr); void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status); int kiblnd_tunables_init(void); diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index cd3fde7..b243f1f 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -561,7 +561,7 @@ kiblnd_kvaddr_to_page(unsigned long vaddr) } static int -kiblnd_fmr_map_tx(kib_net_t *net, kib_tx_t *tx, kib_rdma_desc_t *rd, int nob) +kiblnd_fmr_map_tx(kib_net_t *net, kib_tx_t *tx, kib_rdma_desc_t *rd, __u32 nob) { kib_hca_dev_t *hdev; __u64 *pages = tx->tx_pages; @@ -588,7 +588,8 @@ kiblnd_fmr_map_tx(kib_net_t *net, kib_tx_t *tx, kib_rdma_desc_t *rd, int nob) cpt = tx->tx_pool->tpo_pool.po_owner->ps_cpt; fps = net->ibn_fmr_ps[cpt]; - rc = kiblnd_fmr_pool_map(fps, pages, npages, 0, &tx->fmr); + rc = kiblnd_fmr_pool_map(fps, pages, npages, nob, 0, (rd != tx->tx_rd), + &tx->fmr); if (rc) { CERROR("Can't map %d pages: %d\n", npages, rc); return rc; @@ -598,8 +599,7 @@ kiblnd_fmr_map_tx(kib_net_t *net, kib_tx_t *tx, kib_rdma_desc_t *rd, int nob) * If rd is not tx_rd, it's going to get sent to a peer, who will need * the rkey */ - rd->rd_key = (rd != tx->tx_rd) ? tx->fmr.fmr_pfmr->fmr->rkey : - tx->fmr.fmr_pfmr->fmr->lkey; + rd->rd_key = tx->fmr.fmr_key; rd->rd_frags[0].rf_addr &= ~hdev->ibh_page_mask; rd->rd_frags[0].rf_nob = nob; rd->rd_nfrags = 1; -- cgit v0.10.2 From 1f199a0c46fbdec52e25afaeb0b4736d40850409 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Thu, 5 May 2016 14:53:05 -0400 Subject: staging: lustre: o2iblnd: handle unmapping of FMR in kiblnd_fmr_pool_unmap Move FMR unmapping from kiblnd_unmap_tx() to the function kiblnd_fmr_pool_unmap() so kiblnd_unmap_tx() can be used with the Fast Registration API as well. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5783 Reviewed-on: http://review.whamcloud.com/17606 Reviewed-by: James Simmons Reviewed-by: Doug Oucharek Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 491bd6c..fc29d5c 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -1470,13 +1470,20 @@ void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status) { LIST_HEAD(zombies); kib_fmr_pool_t *fpo = fmr->fmr_pool; - kib_fmr_poolset_t *fps = fpo->fpo_owner; + kib_fmr_poolset_t *fps; unsigned long now = cfs_time_current(); kib_fmr_pool_t *tmp; int rc; - rc = ib_fmr_pool_unmap(fmr->fmr_pfmr); - LASSERT(!rc); + if (!fpo) + return; + + fps = fpo->fpo_owner; + if (fmr->fmr_pfmr) { + rc = ib_fmr_pool_unmap(fmr->fmr_pfmr); + LASSERT(!rc); + fmr->fmr_pfmr = NULL; + } if (status) { rc = ib_flush_fmr_pool(fpo->fmr.fpo_fmr_pool); @@ -1484,7 +1491,6 @@ void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status) } fmr->fmr_pool = NULL; - fmr->fmr_pfmr = NULL; spin_lock(&fps->fps_lock); fpo->fpo_map_count--; /* decref the pool */ diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index b243f1f..7d1c750 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -613,10 +613,8 @@ static void kiblnd_unmap_tx(lnet_ni_t *ni, kib_tx_t *tx) LASSERT(net); - if (net->ibn_fmr_ps && tx->fmr.fmr_pfmr) { + if (net->ibn_fmr_ps) kiblnd_fmr_pool_unmap(&tx->fmr, tx->tx_status); - tx->fmr.fmr_pfmr = NULL; - } if (tx->tx_nfrags) { kiblnd_dma_unmap_sg(tx->tx_pool->tpo_hdev->ibh_ibdev, -- cgit v0.10.2 From 4d65730bd674b44cb4c7c9bc45b98692215d0881 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Thu, 5 May 2016 14:53:06 -0400 Subject: staging: lustre: o2iblnd: add IBLND_WID_MR We need to add a new error field to be passed with wr_id to handle Fast Registration failures. Signed-off-by: Dmitry Eremin Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5783 Reviewed-on: http://review.whamcloud.com/17606 Reviewed-by: James Simmons Reviewed-by: Doug Oucharek Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index 90c8aa5..277e633 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -804,7 +804,8 @@ kiblnd_queue2str(kib_conn_t *conn, struct list_head *q) #define IBLND_WID_TX 1 #define IBLND_WID_RX 2 #define IBLND_WID_RDMA 3 -#define IBLND_WID_MASK 3UL +#define IBLND_WID_MR 4 +#define IBLND_WID_MASK 7UL static inline __u64 kiblnd_ptr2wreqid(void *ptr, int type) -- cgit v0.10.2 From 80e05b34f882dd03e3b7eaa1923e49deae6e409e Mon Sep 17 00:00:00 2001 From: Dmitry Eremin Date: Thu, 5 May 2016 14:53:07 -0400 Subject: staging: lustre: o2iblnd: Add Fast Reg memory registration support FMR is deprecated and it not supported by the mlx5 driver. This patch adds memory management extensions support as backup of FMR. This was combined with the work from Li Dongyang to make it work with the latest kernels. Signed-off-by: Dmitry Eremin Signed-off-by: Li Dongyang Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5783 Reviewed-on: http://review.whamcloud.com/17606 Reviewed-by: James Simmons Reviewed-by: Doug Oucharek Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index fc29d5c..2bb300c 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -1302,8 +1302,24 @@ static void kiblnd_destroy_fmr_pool(kib_fmr_pool_t *fpo) { LASSERT(!fpo->fpo_map_count); - if (fpo->fmr.fpo_fmr_pool) - ib_destroy_fmr_pool(fpo->fmr.fpo_fmr_pool); + if (fpo->fpo_is_fmr) { + if (fpo->fmr.fpo_fmr_pool) + ib_destroy_fmr_pool(fpo->fmr.fpo_fmr_pool); + } else { + struct kib_fast_reg_descriptor *frd, *tmp; + int i = 0; + + list_for_each_entry_safe(frd, tmp, &fpo->fast_reg.fpo_pool_list, + frd_list) { + list_del(&frd->frd_list); + ib_dereg_mr(frd->frd_mr); + LIBCFS_FREE(frd, sizeof(*frd)); + i++; + } + if (i < fpo->fast_reg.fpo_pool_size) + CERROR("FastReg pool still has %d regions registered\n", + fpo->fast_reg.fpo_pool_size - i); + } if (fpo->fpo_hdev) kiblnd_hdev_decref(fpo->fpo_hdev); @@ -1362,10 +1378,61 @@ static int kiblnd_alloc_fmr_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t *fpo) return rc; } +static int kiblnd_alloc_freg_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t *fpo) +{ + struct kib_fast_reg_descriptor *frd, *tmp; + int i, rc; + + INIT_LIST_HEAD(&fpo->fast_reg.fpo_pool_list); + fpo->fast_reg.fpo_pool_size = 0; + for (i = 0; i < fps->fps_pool_size; i++) { + LIBCFS_CPT_ALLOC(frd, lnet_cpt_table(), fps->fps_cpt, + sizeof(*frd)); + if (!frd) { + CERROR("Failed to allocate a new fast_reg descriptor\n"); + rc = -ENOMEM; + goto out; + } + + frd->frd_mr = ib_alloc_mr(fpo->fpo_hdev->ibh_pd, + IB_MR_TYPE_MEM_REG, + LNET_MAX_PAYLOAD / PAGE_SIZE); + if (IS_ERR(frd->frd_mr)) { + rc = PTR_ERR(frd->frd_mr); + CERROR("Failed to allocate ib_alloc_mr: %d\n", rc); + frd->frd_mr = NULL; + goto out_middle; + } + + frd->frd_valid = true; + + list_add_tail(&frd->frd_list, &fpo->fast_reg.fpo_pool_list); + fpo->fast_reg.fpo_pool_size++; + } + + return 0; + +out_middle: + if (frd->frd_mr) + ib_dereg_mr(frd->frd_mr); + LIBCFS_FREE(frd, sizeof(*frd)); + +out: + list_for_each_entry_safe(frd, tmp, &fpo->fast_reg.fpo_pool_list, + frd_list) { + list_del(&frd->frd_list); + ib_dereg_mr(frd->frd_mr); + LIBCFS_FREE(frd, sizeof(*frd)); + } + + return rc; +} + static int kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t **pp_fpo) { kib_dev_t *dev = fps->fps_net->ibn_dev; + struct ib_device_attr *dev_attr; kib_fmr_pool_t *fpo; int rc; @@ -1374,20 +1441,28 @@ static int kiblnd_create_fmr_pool(kib_fmr_poolset_t *fps, return -ENOMEM; fpo->fpo_hdev = kiblnd_current_hdev(dev); + dev_attr = &fpo->fpo_hdev->ibh_ibdev->attrs; - /* Check for FMR support */ + /* Check for FMR or FastReg support */ + fpo->fpo_is_fmr = 0; if (fpo->fpo_hdev->ibh_ibdev->alloc_fmr && fpo->fpo_hdev->ibh_ibdev->dealloc_fmr && fpo->fpo_hdev->ibh_ibdev->map_phys_fmr && fpo->fpo_hdev->ibh_ibdev->unmap_fmr) { LCONSOLE_INFO("Using FMR for registration\n"); + fpo->fpo_is_fmr = 1; + } else if (dev_attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS) { + LCONSOLE_INFO("Using FastReg for registration\n"); } else { rc = -ENOSYS; - LCONSOLE_ERROR_MSG(rc, "IB device does not support FMRs, can't register memory\n"); + LCONSOLE_ERROR_MSG(rc, "IB device does not support FMRs nor FastRegs, can't register memory\n"); goto out_fpo; } - rc = kiblnd_alloc_fmr_pool(fps, fpo); + if (fpo->fpo_is_fmr) + rc = kiblnd_alloc_fmr_pool(fps, fpo); + else + rc = kiblnd_alloc_freg_pool(fps, fpo); if (rc) goto out_fpo; @@ -1466,6 +1541,28 @@ static int kiblnd_fmr_pool_is_idle(kib_fmr_pool_t *fpo, unsigned long now) return cfs_time_aftereq(now, fpo->fpo_deadline); } +static int +kiblnd_map_tx_pages(kib_tx_t *tx, kib_rdma_desc_t *rd) +{ + __u64 *pages = tx->tx_pages; + kib_hca_dev_t *hdev; + int npages; + int size; + int i; + + hdev = tx->tx_pool->tpo_hdev; + + for (i = 0, npages = 0; i < rd->rd_nfrags; i++) { + for (size = 0; size < rd->rd_frags[i].rf_nob; + size += hdev->ibh_page_size) { + pages[npages++] = (rd->rd_frags[i].rf_addr & + hdev->ibh_page_mask) + size; + } + } + + return npages; +} + void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status) { LIST_HEAD(zombies); @@ -1479,17 +1576,28 @@ void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status) return; fps = fpo->fpo_owner; - if (fmr->fmr_pfmr) { - rc = ib_fmr_pool_unmap(fmr->fmr_pfmr); - LASSERT(!rc); - fmr->fmr_pfmr = NULL; - } + if (fpo->fpo_is_fmr) { + if (fmr->fmr_pfmr) { + rc = ib_fmr_pool_unmap(fmr->fmr_pfmr); + LASSERT(!rc); + fmr->fmr_pfmr = NULL; + } - if (status) { - rc = ib_flush_fmr_pool(fpo->fmr.fpo_fmr_pool); - LASSERT(!rc); - } + if (status) { + rc = ib_flush_fmr_pool(fpo->fmr.fpo_fmr_pool); + LASSERT(!rc); + } + } else { + struct kib_fast_reg_descriptor *frd = fmr->fmr_frd; + if (frd) { + frd->frd_valid = false; + spin_lock(&fps->fps_lock); + list_add_tail(&frd->frd_list, &fpo->fast_reg.fpo_pool_list); + spin_unlock(&fps->fps_lock); + fmr->fmr_frd = NULL; + } + } fmr->fmr_pool = NULL; spin_lock(&fps->fps_lock); @@ -1511,11 +1619,15 @@ void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status) kiblnd_destroy_fmr_pool_list(&zombies); } -int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages, - __u32 nob, __u64 iov, bool is_rx, kib_fmr_t *fmr) +int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, kib_tx_t *tx, + kib_rdma_desc_t *rd, __u32 nob, __u64 iov, + kib_fmr_t *fmr) { - struct ib_pool_fmr *pfmr; + __u64 *pages = tx->tx_pages; + bool is_rx = (rd != tx->tx_rd); + bool tx_pages_mapped = 0; kib_fmr_pool_t *fpo; + int npages = 0; __u64 version; int rc; @@ -1525,18 +1637,89 @@ int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages, list_for_each_entry(fpo, &fps->fps_pool_list, fpo_list) { fpo->fpo_deadline = cfs_time_shift(IBLND_POOL_DEADLINE); fpo->fpo_map_count++; - spin_unlock(&fps->fps_lock); - pfmr = ib_fmr_pool_map_phys(fpo->fmr.fpo_fmr_pool, - pages, npages, iov); - if (likely(!IS_ERR(pfmr))) { - fmr->fmr_key = is_rx ? pfmr->fmr->rkey : - pfmr->fmr->lkey; - fmr->fmr_pfmr = pfmr; - fmr->fmr_pool = fpo; - return 0; + if (fpo->fpo_is_fmr) { + struct ib_pool_fmr *pfmr; + + spin_unlock(&fps->fps_lock); + + if (!tx_pages_mapped) { + npages = kiblnd_map_tx_pages(tx, rd); + tx_pages_mapped = 1; + } + + pfmr = ib_fmr_pool_map_phys(fpo->fmr.fpo_fmr_pool, + pages, npages, iov); + if (likely(!IS_ERR(pfmr))) { + fmr->fmr_key = is_rx ? pfmr->fmr->rkey : + pfmr->fmr->lkey; + fmr->fmr_frd = NULL; + fmr->fmr_pfmr = pfmr; + fmr->fmr_pool = fpo; + return 0; + } + rc = PTR_ERR(pfmr); + } else { + if (!list_empty(&fpo->fast_reg.fpo_pool_list)) { + struct kib_fast_reg_descriptor *frd; + struct ib_reg_wr *wr; + struct ib_mr *mr; + int n; + + frd = list_first_entry(&fpo->fast_reg.fpo_pool_list, + struct kib_fast_reg_descriptor, + frd_list); + list_del(&frd->frd_list); + spin_unlock(&fps->fps_lock); + + mr = frd->frd_mr; + + if (!frd->frd_valid) { + __u32 key = is_rx ? mr->rkey : mr->lkey; + struct ib_send_wr *inv_wr; + + inv_wr = &frd->frd_inv_wr; + memset(inv_wr, 0, sizeof(*inv_wr)); + inv_wr->opcode = IB_WR_LOCAL_INV; + inv_wr->wr_id = IBLND_WID_MR; + inv_wr->ex.invalidate_rkey = key; + + /* Bump the key */ + key = ib_inc_rkey(key); + ib_update_fast_reg_key(mr, key); + } + + n = ib_map_mr_sg(mr, tx->tx_frags, + tx->tx_nfrags, PAGE_SIZE); + if (unlikely(n != tx->tx_nfrags)) { + CERROR("Failed to map mr %d/%d elements\n", + n, tx->tx_nfrags); + return n < 0 ? n : -EINVAL; + } + + mr->iova = iov; + + /* Prepare FastReg WR */ + wr = &frd->frd_fastreg_wr; + memset(wr, 0, sizeof(*wr)); + wr->wr.opcode = IB_WR_REG_MR; + wr->wr.wr_id = IBLND_WID_MR; + wr->wr.num_sge = 0; + wr->wr.send_flags = 0; + wr->mr = mr; + wr->key = is_rx ? mr->rkey : mr->lkey; + wr->access = (IB_ACCESS_LOCAL_WRITE | + IB_ACCESS_REMOTE_WRITE); + + fmr->fmr_key = is_rx ? mr->rkey : mr->lkey; + fmr->fmr_frd = frd; + fmr->fmr_pfmr = NULL; + fmr->fmr_pool = fpo; + return 0; + } + spin_unlock(&fps->fps_lock); + rc = -EBUSY; } - rc = PTR_ERR(pfmr); spin_lock(&fps->fps_lock); fpo->fpo_map_count--; diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index 277e633..52245e0 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -291,6 +291,14 @@ typedef struct { /* failed to allocate */ } kib_fmr_poolset_t; +struct kib_fast_reg_descriptor { /* For fast registration */ + struct list_head frd_list; + struct ib_send_wr frd_inv_wr; + struct ib_reg_wr frd_fastreg_wr; + struct ib_mr *frd_mr; + bool frd_valid; +}; + typedef struct { struct list_head fpo_list; /* chain on pool list */ struct kib_hca_dev *fpo_hdev; /* device for this pool */ @@ -299,16 +307,22 @@ typedef struct { struct { struct ib_fmr_pool *fpo_fmr_pool; /* IB FMR pool */ } fmr; + struct { /* For fast registration */ + struct list_head fpo_pool_list; + int fpo_pool_size; + } fast_reg; }; unsigned long fpo_deadline; /* deadline of this pool */ int fpo_failed; /* fmr pool is failed */ int fpo_map_count; /* # of mapped FMR */ + int fpo_is_fmr; } kib_fmr_pool_t; typedef struct { - kib_fmr_pool_t *fmr_pool; /* pool of FMR */ - struct ib_pool_fmr *fmr_pfmr; /* IB pool fmr */ - u32 fmr_key; + kib_fmr_pool_t *fmr_pool; /* pool of FMR */ + struct ib_pool_fmr *fmr_pfmr; /* IB pool fmr */ + struct kib_fast_reg_descriptor *fmr_frd; + u32 fmr_key; } kib_fmr_t; typedef struct kib_net { @@ -961,8 +975,9 @@ void kiblnd_unmap_rx_descs(kib_conn_t *conn); void kiblnd_pool_free_node(kib_pool_t *pool, struct list_head *node); struct list_head *kiblnd_pool_alloc_node(kib_poolset_t *ps); -int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, __u64 *pages, int npages, - __u32 nob, __u64 iov, bool is_rx, kib_fmr_t *fmr); +int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, kib_tx_t *tx, + kib_rdma_desc_t *rd, __u32 nob, __u64 iov, + kib_fmr_t *fmr); void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status); int kiblnd_tunables_init(void); diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index 7d1c750..c10e615 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -564,34 +564,20 @@ static int kiblnd_fmr_map_tx(kib_net_t *net, kib_tx_t *tx, kib_rdma_desc_t *rd, __u32 nob) { kib_hca_dev_t *hdev; - __u64 *pages = tx->tx_pages; kib_fmr_poolset_t *fps; - int npages; - int size; int cpt; int rc; - int i; LASSERT(tx->tx_pool); LASSERT(tx->tx_pool->tpo_pool.po_owner); hdev = tx->tx_pool->tpo_hdev; - - for (i = 0, npages = 0; i < rd->rd_nfrags; i++) { - for (size = 0; size < rd->rd_frags[i].rf_nob; - size += hdev->ibh_page_size) { - pages[npages++] = (rd->rd_frags[i].rf_addr & - hdev->ibh_page_mask) + size; - } - } - cpt = tx->tx_pool->tpo_pool.po_owner->ps_cpt; fps = net->ibn_fmr_ps[cpt]; - rc = kiblnd_fmr_pool_map(fps, pages, npages, nob, 0, (rd != tx->tx_rd), - &tx->fmr); + rc = kiblnd_fmr_pool_map(fps, tx, rd, nob, 0, &tx->fmr); if (rc) { - CERROR("Can't map %d pages: %d\n", npages, rc); + CERROR("Can't map %u bytes: %d\n", nob, rc); return rc; } @@ -849,14 +835,26 @@ kiblnd_post_tx_locked(kib_conn_t *conn, kib_tx_t *tx, int credit) /* close_conn will launch failover */ rc = -ENETDOWN; } else { - struct ib_send_wr *wrq = &tx->tx_wrq[tx->tx_nwrq - 1].wr; + struct kib_fast_reg_descriptor *frd = tx->fmr.fmr_frd; + struct ib_send_wr *bad = &tx->tx_wrq[tx->tx_nwrq - 1].wr; + struct ib_send_wr *wrq = &tx->tx_wrq[0].wr; + + if (frd) { + if (!frd->frd_valid) { + wrq = &frd->frd_inv_wr; + wrq->next = &frd->frd_fastreg_wr.wr; + } else { + wrq = &frd->frd_fastreg_wr.wr; + } + frd->frd_fastreg_wr.wr.next = &tx->tx_wrq[0].wr; + } - LASSERTF(wrq->wr_id == kiblnd_ptr2wreqid(tx, IBLND_WID_TX), + LASSERTF(bad->wr_id == kiblnd_ptr2wreqid(tx, IBLND_WID_TX), "bad wr_id %llx, opc %d, flags %d, peer: %s\n", - wrq->wr_id, wrq->opcode, wrq->send_flags, - libcfs_nid2str(conn->ibc_peer->ibp_nid)); - wrq = NULL; - rc = ib_post_send(conn->ibc_cmid->qp, &tx->tx_wrq->wr, &wrq); + bad->wr_id, bad->opcode, bad->send_flags, + libcfs_nid2str(conn->ibc_peer->ibp_nid)); + bad = NULL; + rc = ib_post_send(conn->ibc_cmid->qp, wrq, &bad); } conn->ibc_last_send = jiffies; @@ -1064,7 +1062,7 @@ kiblnd_init_rdma(kib_conn_t *conn, kib_tx_t *tx, int type, kib_msg_t *ibmsg = tx->tx_msg; kib_rdma_desc_t *srcrd = tx->tx_rd; struct ib_sge *sge = &tx->tx_sge[0]; - struct ib_rdma_wr *wrq = &tx->tx_wrq[0], *next; + struct ib_rdma_wr *wrq, *next; int rc = resid; int srcidx = 0; int dstidx = 0; @@ -3428,6 +3426,12 @@ kiblnd_complete(struct ib_wc *wc) default: LBUG(); + case IBLND_WID_MR: + if (wc->status != IB_WC_SUCCESS && + wc->status != IB_WC_WR_FLUSH_ERR) + CNETERR("FastReg failed: %d\n", wc->status); + break; + case IBLND_WID_RDMA: /* * We only get RDMA completion notification if it fails. All -- cgit v0.10.2 From d76d938589eadb1295cb03c672b84f4869d0fe2c Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Fri, 6 May 2016 21:30:22 -0400 Subject: staging: lustre: lnet: use struct lnet_ioctl_config_data for NI bring up The LNet layer passes around the individual fields of struct lnet_ioctl_config_data for the case of NI bring up. To simplify the code lets just pass struct lnet_ioctl_config directly. Signed-off-by: Amir Shehata Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101 Reviewed-on: http://review.whamcloud.com/16367 Reviewed-by: Doug Oucharek Reviewed-by: Olaf Weber Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h index dfc0208..1865c85 100644 --- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h +++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h @@ -478,9 +478,8 @@ int lnet_rtrpools_enable(void); void lnet_rtrpools_disable(void); void lnet_rtrpools_free(int keep_pools); lnet_remotenet_t *lnet_find_net_locked(__u32 net); -int lnet_dyn_add_ni(lnet_pid_t requested_pid, char *nets, - __s32 peer_timeout, __s32 peer_cr, __s32 peer_buf_cr, - __s32 credits); +int lnet_dyn_add_ni(lnet_pid_t requested_pid, + struct lnet_ioctl_config_data *conf); int lnet_dyn_del_ni(__u32 net); int lnet_clear_lazy_portal(struct lnet_ni *ni, int portal, char *reason); diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c index f825784..6340ad1 100644 --- a/drivers/staging/lustre/lnet/lnet/api-ni.c +++ b/drivers/staging/lustre/lnet/lnet/api-ni.c @@ -1215,8 +1215,7 @@ lnet_shutdown_lndni(struct lnet_ni *ni) } static int -lnet_startup_lndni(struct lnet_ni *ni, __s32 peer_timeout, - __s32 peer_cr, __s32 peer_buf_cr, __s32 credits) +lnet_startup_lndni(struct lnet_ni *ni, struct lnet_ioctl_config_data *conf) { int rc = -EINVAL; int lnd_type; @@ -1292,20 +1291,28 @@ lnet_startup_lndni(struct lnet_ni *ni, __s32 peer_timeout, * If given some LND tunable parameters, parse those now to * override the values in the NI structure. */ - if (peer_buf_cr >= 0) - ni->ni_peerrtrcredits = peer_buf_cr; - if (peer_timeout >= 0) - ni->ni_peertimeout = peer_timeout; + if (conf && conf->cfg_config_u.cfg_net.net_peer_rtr_credits >= 0) { + ni->ni_peerrtrcredits = + conf->cfg_config_u.cfg_net.net_peer_rtr_credits; + } + if (conf && conf->cfg_config_u.cfg_net.net_peer_timeout >= 0) { + ni->ni_peertimeout = + conf->cfg_config_u.cfg_net.net_peer_timeout; + } /* * TODO * Note: For now, don't allow the user to change * peertxcredits as this number is used in the * IB LND to control queue depth. - * if (peer_cr != -1) - * ni->ni_peertxcredits = peer_cr; + * + * if (conf && conf->cfg_config_u.cfg_net.net_peer_tx_credits != -1) + * ni->ni_peertxcredits = + * conf->cfg_config_u.cfg_net.net_peer_tx_credits; */ - if (credits >= 0) - ni->ni_maxtxcredits = credits; + if (conf && conf->cfg_config_u.cfg_net.net_max_tx_credits >= 0) { + ni->ni_maxtxcredits = + conf->cfg_config_u.cfg_net.net_max_tx_credits; + } LASSERT(ni->ni_peertimeout <= 0 || lnd->lnd_query); @@ -1367,7 +1374,7 @@ lnet_startup_lndnis(struct list_head *nilist) while (!list_empty(nilist)) { ni = list_entry(nilist->next, lnet_ni_t, ni_list); list_del(&ni->ni_list); - rc = lnet_startup_lndni(ni, -1, -1, -1, -1); + rc = lnet_startup_lndni(ni, NULL); if (rc < 0) goto failed; @@ -1725,10 +1732,9 @@ lnet_get_net_config(int idx, __u32 *cpt_count, __u64 *nid, int *peer_timeout, } int -lnet_dyn_add_ni(lnet_pid_t requested_pid, char *nets, - __s32 peer_timeout, __s32 peer_cr, __s32 peer_buf_cr, - __s32 credits) +lnet_dyn_add_ni(lnet_pid_t requested_pid, struct lnet_ioctl_config_data *conf) { + char *nets = conf->cfg_config_u.cfg_net.net_intf; lnet_ping_info_t *pinfo; lnet_handle_md_t md_handle; struct lnet_ni *ni; @@ -1773,8 +1779,7 @@ lnet_dyn_add_ni(lnet_pid_t requested_pid, char *nets, list_del_init(&ni->ni_list); - rc = lnet_startup_lndni(ni, peer_timeout, peer_cr, - peer_buf_cr, credits); + rc = lnet_startup_lndni(ni, conf); if (rc) goto failed1; diff --git a/drivers/staging/lustre/lnet/lnet/module.c b/drivers/staging/lustre/lnet/lnet/module.c index 93037c1..246b5c1 100644 --- a/drivers/staging/lustre/lnet/lnet/module.c +++ b/drivers/staging/lustre/lnet/lnet/module.c @@ -108,12 +108,7 @@ lnet_dyn_configure(struct libcfs_ioctl_hdr *hdr) rc = -EINVAL; goto out_unlock; } - rc = lnet_dyn_add_ni(LNET_PID_LUSTRE, - conf->cfg_config_u.cfg_net.net_intf, - conf->cfg_config_u.cfg_net.net_peer_timeout, - conf->cfg_config_u.cfg_net.net_peer_tx_credits, - conf->cfg_config_u.cfg_net.net_peer_rtr_credits, - conf->cfg_config_u.cfg_net.net_max_tx_credits); + rc = lnet_dyn_add_ni(LNET_PID_LUSTRE, conf); out_unlock: mutex_unlock(&lnet_config_mutex); -- cgit v0.10.2 From 27c7f7caa694aee34665f06c0f6b0c49995d9e4f Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Fri, 6 May 2016 21:30:23 -0400 Subject: staging: lustre: lnet: use struct lnet_ioctl_config_data for NI query The functions used to query the NI state passes around the individual fields of struct lnet_ioctl_config_data. To simplify the code lets just pass struct lnet_ioctl_config directly. Signed-off-by: Amir Shehata Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101 Reviewed-on: http://review.whamcloud.com/16367 Reviewed-by: Doug Oucharek Reviewed-by: Olaf Weber Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h index 1865c85..513a822 100644 --- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h +++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h @@ -463,10 +463,6 @@ int lnet_del_route(__u32 net, lnet_nid_t gw_nid); void lnet_destroy_routes(void); int lnet_get_route(int idx, __u32 *net, __u32 *hops, lnet_nid_t *gateway, __u32 *alive, __u32 *priority); -int lnet_get_net_config(int idx, __u32 *cpt_count, __u64 *nid, - int *peer_timeout, int *peer_tx_credits, - int *peer_rtr_cr, int *max_tx_credits, - struct lnet_ioctl_net_config *net_config); int lnet_get_rtr_pool_cfg(int idx, struct lnet_ioctl_pool_cfg *pool_cfg); void lnet_router_debugfs_init(void); diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c index 6340ad1..01e1808 100644 --- a/drivers/staging/lustre/lnet/lnet/api-ni.c +++ b/drivers/staging/lustre/lnet/lnet/api-ni.c @@ -1648,25 +1648,18 @@ EXPORT_SYMBOL(LNetNIFini); * parameters * * \param[in] ni network interface structure - * \param[out] cpt_count the number of cpts the ni is on - * \param[out] nid Network Interface ID - * \param[out] peer_timeout NI peer timeout - * \param[out] peer_tx_crdits NI peer transmit credits - * \param[out] peer_rtr_credits NI peer router credits - * \param[out] max_tx_credits NI max transmit credit - * \param[out] net_config Network configuration + * \param[out] config NI configuration */ static void -lnet_fill_ni_info(struct lnet_ni *ni, __u32 *cpt_count, __u64 *nid, - int *peer_timeout, int *peer_tx_credits, - int *peer_rtr_credits, int *max_tx_credits, - struct lnet_ioctl_net_config *net_config) +lnet_fill_ni_info(struct lnet_ni *ni, struct lnet_ioctl_config_data *config) { + struct lnet_ioctl_net_config *net_config; int i; - if (!ni) + if (!ni || !config) return; + net_config = (struct lnet_ioctl_net_config *) config->cfg_bulk; if (!net_config) return; @@ -1682,11 +1675,11 @@ lnet_fill_ni_info(struct lnet_ni *ni, __u32 *cpt_count, __u64 *nid, sizeof(net_config->ni_interfaces[i])); } - *nid = ni->ni_nid; - *peer_timeout = ni->ni_peertimeout; - *peer_tx_credits = ni->ni_peertxcredits; - *peer_rtr_credits = ni->ni_peerrtrcredits; - *max_tx_credits = ni->ni_maxtxcredits; + config->cfg_nid = ni->ni_nid; + config->cfg_config_u.cfg_net.net_peer_timeout = ni->ni_peertimeout; + config->cfg_config_u.cfg_net.net_max_tx_credits = ni->ni_maxtxcredits; + config->cfg_config_u.cfg_net.net_peer_tx_credits = ni->ni_peertxcredits; + config->cfg_config_u.cfg_net.net_peer_rtr_credits = ni->ni_peerrtrcredits; net_config->ni_status = ni->ni_status->ns_status; @@ -1696,18 +1689,16 @@ lnet_fill_ni_info(struct lnet_ni *ni, __u32 *cpt_count, __u64 *nid, for (i = 0; i < num_cpts; i++) net_config->ni_cpts[i] = ni->ni_cpts[i]; - *cpt_count = num_cpts; + config->cfg_ncpts = num_cpts; } } -int -lnet_get_net_config(int idx, __u32 *cpt_count, __u64 *nid, int *peer_timeout, - int *peer_tx_credits, int *peer_rtr_credits, - int *max_tx_credits, - struct lnet_ioctl_net_config *net_config) +static int +lnet_get_net_config(struct lnet_ioctl_config_data *config) { struct lnet_ni *ni; struct list_head *tmp; + int idx = config->cfg_count; int cpt, i = 0; int rc = -ENOENT; @@ -1719,9 +1710,7 @@ lnet_get_net_config(int idx, __u32 *cpt_count, __u64 *nid, int *peer_timeout, ni = list_entry(tmp, lnet_ni_t, ni_list); lnet_ni_lock(ni); - lnet_fill_ni_info(ni, cpt_count, nid, peer_timeout, - peer_tx_credits, peer_rtr_credits, - max_tx_credits, net_config); + lnet_fill_ni_info(ni, config); lnet_ni_unlock(ni); rc = 0; break; @@ -1927,27 +1916,14 @@ LNetCtl(unsigned int cmd, void *arg) &config->cfg_config_u.cfg_route.rtr_priority); case IOC_LIBCFS_GET_NET: { - struct lnet_ioctl_net_config *net_config; - size_t total = sizeof(*config) + sizeof(*net_config); - + size_t total = sizeof(*config) + + sizeof(struct lnet_ioctl_net_config); config = arg; if (config->cfg_hdr.ioc_len < total) return -EINVAL; - net_config = (struct lnet_ioctl_net_config *) - config->cfg_bulk; - if (!net_config) - return -EINVAL; - - return lnet_get_net_config(config->cfg_count, - &config->cfg_ncpts, - &config->cfg_nid, - &config->cfg_config_u.cfg_net.net_peer_timeout, - &config->cfg_config_u.cfg_net.net_peer_tx_credits, - &config->cfg_config_u.cfg_net.net_peer_rtr_credits, - &config->cfg_config_u.cfg_net.net_max_tx_credits, - net_config); + return lnet_get_net_config(config); } case IOC_LIBCFS_GET_LNET_STATS: { -- cgit v0.10.2 From 243a941c0d17599bfee4cf3c48775f155c0b89a3 Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Fri, 6 May 2016 21:30:24 -0400 Subject: staging: lustre: lnet: add per NI configuration structures Currently for LNet all hardware configuration is done with the modprobe configuration file. These settings are applied to all hardware instances for a node. That makes it impossible to configure two different pieces of infiniband hardware that require very different settings to function. Here we introduce the infrastructre to allow applying per interface settings. Signed-off-by: Amir Shehata Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101 Reviewed-on: http://review.whamcloud.com/16367 Reviewed-by: Doug Oucharek Reviewed-by: Olaf Weber Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/include/linux/lnet/lib-dlc.h b/drivers/staging/lustre/include/linux/lnet/lib-dlc.h index 84a19e9..6ce9acc 100644 --- a/drivers/staging/lustre/include/linux/lnet/lib-dlc.h +++ b/drivers/staging/lustre/include/linux/lnet/lib-dlc.h @@ -37,10 +37,37 @@ #define LNET_MAX_SHOW_NUM_CPT 128 #define LNET_UNDEFINED_HOPS ((__u32) -1) +struct lnet_ioctl_config_lnd_cmn_tunables { + __u32 lct_version; + __u32 lct_peer_timeout; + __u32 lct_peer_tx_credits; + __u32 lct_peer_rtr_credits; + __u32 lct_max_tx_credits; +}; + +struct lnet_ioctl_config_o2iblnd_tunables { + __u32 lnd_version; + __u32 lnd_peercredits_hiw; + __u32 lnd_map_on_demand; + __u32 lnd_concurrent_sends; + __u32 lnd_fmr_pool_size; + __u32 lnd_fmr_flush_trigger; + __u32 lnd_fmr_cache; + __u32 pad; +}; + +struct lnet_ioctl_config_lnd_tunables { + struct lnet_ioctl_config_lnd_cmn_tunables lt_cmn; + union { + struct lnet_ioctl_config_o2iblnd_tunables lt_o2ib; + } lt_tun_u; +}; + struct lnet_ioctl_net_config { char ni_interfaces[LNET_MAX_INTERFACES][LNET_MAX_STR_LEN]; __u32 ni_status; __u32 ni_cpts[LNET_MAX_SHOW_NUM_CPT]; + char cfg_bulk[0]; }; #define LNET_TINY_BUF_IDX 0 @@ -81,7 +108,7 @@ struct lnet_ioctl_config_data { __s32 net_peer_rtr_credits; __s32 net_max_tx_credits; __u32 net_cksum_algo; - __u32 net_pad; + __u32 net_interface_count; } cfg_net; struct { __u32 buf_enable; diff --git a/drivers/staging/lustre/include/linux/lnet/lib-types.h b/drivers/staging/lustre/include/linux/lnet/lib-types.h index 29c72f8..24c4a08 100644 --- a/drivers/staging/lustre/include/linux/lnet/lib-types.h +++ b/drivers/staging/lustre/include/linux/lnet/lib-types.h @@ -273,6 +273,8 @@ typedef struct lnet_ni { int **ni_refs; /* percpt reference count */ time64_t ni_last_alive;/* when I was last alive */ lnet_ni_status_t *ni_status; /* my health status */ + /* per NI LND tunables */ + struct lnet_ioctl_config_lnd_tunables *ni_lnd_tunables; /* equivalent interfaces to use */ char *ni_interfaces[LNET_MAX_INTERFACES]; } lnet_ni_t; diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c index 449069c..480cc9c 100644 --- a/drivers/staging/lustre/lnet/lnet/config.c +++ b/drivers/staging/lustre/lnet/lnet/config.c @@ -107,6 +107,9 @@ lnet_ni_free(struct lnet_ni *ni) if (ni->ni_cpts) cfs_expr_list_values_free(ni->ni_cpts, ni->ni_ncpts); + if (ni->ni_lnd_tunables) + LIBCFS_FREE(ni->ni_lnd_tunables, sizeof(*ni->ni_lnd_tunables)); + for (i = 0; i < LNET_MAX_INTERFACES && ni->ni_interfaces[i]; i++) { LIBCFS_FREE(ni->ni_interfaces[i], strlen(ni->ni_interfaces[i]) + 1); -- cgit v0.10.2 From 9e7d5bf357fa798f21b4a775b47faa64e4b5f6e8 Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Fri, 6 May 2016 21:30:25 -0400 Subject: staging: lustre: o2iblnd: convert macros to inline functions Convert a few macros in o2iblnd.h to inline functions. Signed-off-by: Amir Shehata Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101 Reviewed-on: http://review.whamcloud.com/16367 Reviewed-by: Doug Oucharek Reviewed-by: Olaf Weber Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 2bb300c..425148b 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -335,7 +335,7 @@ int kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid) peer->ibp_nid = nid; peer->ibp_error = 0; peer->ibp_last_alive = 0; - peer->ibp_max_frags = IBLND_CFG_RDMA_FRAGS; + peer->ibp_max_frags = kiblnd_cfg_rdma_frags(peer->ibp_ni); peer->ibp_queue_depth = *kiblnd_tunables.kib_peertxcredits; atomic_set(&peer->ibp_refcount, 1); /* 1 ref for caller */ diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index 52245e0..fab0ef9 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -116,9 +116,6 @@ extern kib_tunables_t kiblnd_tunables; #define IBLND_CREDITS_DEFAULT 8 /* default # of peer credits */ #define IBLND_CREDITS_MAX ((typeof(((kib_msg_t *) 0)->ibm_credits)) - 1) /* Max # of peer credits */ -#define IBLND_MSG_QUEUE_SIZE(v) ((v) == IBLND_MSG_VERSION_1 ? \ - IBLND_MSG_QUEUE_SIZE_V1 : \ - *kiblnd_tunables.kib_peertxcredits) /* # messages/RDMAs in-flight */ #define IBLND_CREDITS_HIGHWATER(v) ((v) == IBLND_MSG_VERSION_1 ? \ IBLND_CREDIT_HIGHWATER_V1 : \ *kiblnd_tunables.kib_peercredits_hiw) /* when eagerly to return credits */ @@ -127,32 +124,12 @@ extern kib_tunables_t kiblnd_tunables; cb, dev, \ ps, qpt) -static inline int -kiblnd_concurrent_sends_v1(void) -{ - if (*kiblnd_tunables.kib_concurrent_sends > IBLND_MSG_QUEUE_SIZE_V1 * 2) - return IBLND_MSG_QUEUE_SIZE_V1 * 2; - - if (*kiblnd_tunables.kib_concurrent_sends < IBLND_MSG_QUEUE_SIZE_V1 / 2) - return IBLND_MSG_QUEUE_SIZE_V1 / 2; - - return *kiblnd_tunables.kib_concurrent_sends; -} - -#define IBLND_CONCURRENT_SENDS(v) ((v) == IBLND_MSG_VERSION_1 ? \ - kiblnd_concurrent_sends_v1() : \ - *kiblnd_tunables.kib_concurrent_sends) /* 2 OOB shall suffice for 1 keepalive and 1 returning credits */ #define IBLND_OOB_CAPABLE(v) ((v) != IBLND_MSG_VERSION_1) #define IBLND_OOB_MSGS(v) (IBLND_OOB_CAPABLE(v) ? 2 : 0) #define IBLND_MSG_SIZE (4 << 10) /* max size of queued messages (inc hdr) */ #define IBLND_MAX_RDMA_FRAGS LNET_MAX_IOV /* max # of fragments supported */ -#define IBLND_CFG_RDMA_FRAGS (*kiblnd_tunables.kib_map_on_demand ? \ - *kiblnd_tunables.kib_map_on_demand : \ - IBLND_MAX_RDMA_FRAGS) /* max # of fragments configured by user */ -#define IBLND_RDMA_FRAGS(v) ((v) == IBLND_MSG_VERSION_1 ? \ - IBLND_MAX_RDMA_FRAGS : IBLND_CFG_RDMA_FRAGS) /************************/ /* derived constants... */ @@ -171,7 +148,8 @@ kiblnd_concurrent_sends_v1(void) /* WRs and CQEs (per connection) */ #define IBLND_RECV_WRS(c) IBLND_RX_MSGS(c) #define IBLND_SEND_WRS(c) \ - ((c->ibc_max_frags + 1) * IBLND_CONCURRENT_SENDS(c->ibc_version)) + ((c->ibc_max_frags + 1) * kiblnd_concurrent_sends(c->ibc_version, \ + c->ibc_peer->ibp_ni)) #define IBLND_CQ_ENTRIES(c) (IBLND_RECV_WRS(c) + IBLND_SEND_WRS(c)) struct kib_hca_dev; @@ -634,6 +612,42 @@ extern kib_data_t kiblnd_data; void kiblnd_hdev_destroy(kib_hca_dev_t *hdev); +int kiblnd_msg_queue_size(int version, struct lnet_ni *ni); + +/* max # of fragments configured by user */ +static inline int +kiblnd_cfg_rdma_frags(struct lnet_ni *ni) +{ + int mod = *kiblnd_tunables.kib_map_on_demand; + return mod ? mod : IBLND_MAX_RDMA_FRAGS; +} + +static inline int +kiblnd_rdma_frags(int version, struct lnet_ni *ni) +{ + return version == IBLND_MSG_VERSION_1 ? + IBLND_MAX_RDMA_FRAGS : + kiblnd_cfg_rdma_frags(ni); +} + +static inline int +kiblnd_concurrent_sends(int version, struct lnet_ni *ni) +{ + int concurrent_sends; + + concurrent_sends = *kiblnd_tunables.kib_concurrent_sends; + + if (version == IBLND_MSG_VERSION_1) { + if (concurrent_sends > IBLND_MSG_QUEUE_SIZE_V1 * 2) + return IBLND_MSG_QUEUE_SIZE_V1 * 2; + + if (concurrent_sends < IBLND_MSG_QUEUE_SIZE_V1 / 2) + return IBLND_MSG_QUEUE_SIZE_V1 / 2; + } + + return concurrent_sends; +} + static inline void kiblnd_hdev_addref_locked(kib_hca_dev_t *hdev) { diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index c10e615..5d4a35b 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -749,6 +749,7 @@ kiblnd_post_tx_locked(kib_conn_t *conn, kib_tx_t *tx, int credit) { kib_msg_t *msg = tx->tx_msg; kib_peer_t *peer = conn->ibc_peer; + struct lnet_ni *ni = peer->ibp_ni; int ver = conn->ibc_version; int rc; int done; @@ -764,7 +765,7 @@ kiblnd_post_tx_locked(kib_conn_t *conn, kib_tx_t *tx, int credit) LASSERT(conn->ibc_credits >= 0); LASSERT(conn->ibc_credits <= conn->ibc_queue_depth); - if (conn->ibc_nsends_posted == IBLND_CONCURRENT_SENDS(ver)) { + if (conn->ibc_nsends_posted == kiblnd_concurrent_sends(ver, ni)) { /* tx completions outstanding... */ CDEBUG(D_NET, "%s: posted enough\n", libcfs_nid2str(peer->ibp_nid)); @@ -915,7 +916,7 @@ kiblnd_check_sends(kib_conn_t *conn) spin_lock(&conn->ibc_lock); - LASSERT(conn->ibc_nsends_posted <= IBLND_CONCURRENT_SENDS(ver)); + LASSERT(conn->ibc_nsends_posted <= kiblnd_concurrent_sends(ver, ni)); LASSERT(!IBLND_OOB_CAPABLE(ver) || conn->ibc_noops_posted <= IBLND_OOB_MSGS(ver)); LASSERT(conn->ibc_reserved_credits >= 0); @@ -2329,11 +2330,11 @@ kiblnd_passive_connect(struct rdma_cm_id *cmid, void *priv, int priv_nob) } if (reqmsg->ibm_u.connparams.ibcp_queue_depth > - IBLND_MSG_QUEUE_SIZE(version)) { + kiblnd_msg_queue_size(version, ni)) { CERROR("Can't accept conn from %s, queue depth too large: %d (<=%d wanted)\n", libcfs_nid2str(nid), reqmsg->ibm_u.connparams.ibcp_queue_depth, - IBLND_MSG_QUEUE_SIZE(version)); + kiblnd_msg_queue_size(version, ni)); if (version == IBLND_MSG_VERSION) rej.ibr_why = IBLND_REJECT_MSG_QUEUE_SIZE; @@ -2342,22 +2343,22 @@ kiblnd_passive_connect(struct rdma_cm_id *cmid, void *priv, int priv_nob) } if (reqmsg->ibm_u.connparams.ibcp_max_frags > - IBLND_RDMA_FRAGS(version)) { + kiblnd_rdma_frags(version, ni)) { CWARN("Can't accept conn from %s (version %x): max_frags %d too large (%d wanted)\n", libcfs_nid2str(nid), version, reqmsg->ibm_u.connparams.ibcp_max_frags, - IBLND_RDMA_FRAGS(version)); + kiblnd_rdma_frags(version, ni)); if (version >= IBLND_MSG_VERSION) rej.ibr_why = IBLND_REJECT_RDMA_FRAGS; goto failed; } else if (reqmsg->ibm_u.connparams.ibcp_max_frags < - IBLND_RDMA_FRAGS(version) && !net->ibn_fmr_ps) { + kiblnd_rdma_frags(version, ni) && !net->ibn_fmr_ps) { CWARN("Can't accept conn from %s (version %x): max_frags %d incompatible without FMR pool (%d wanted)\n", libcfs_nid2str(nid), version, reqmsg->ibm_u.connparams.ibcp_max_frags, - IBLND_RDMA_FRAGS(version)); + kiblnd_rdma_frags(version, ni)); if (version >= IBLND_MSG_VERSION) rej.ibr_why = IBLND_REJECT_RDMA_FRAGS; @@ -2524,8 +2525,8 @@ kiblnd_passive_connect(struct rdma_cm_id *cmid, void *priv, int priv_nob) lnet_ni_decref(ni); rej.ibr_version = version; - rej.ibr_cp.ibcp_queue_depth = IBLND_MSG_QUEUE_SIZE(version); - rej.ibr_cp.ibcp_max_frags = IBLND_RDMA_FRAGS(version); + rej.ibr_cp.ibcp_queue_depth = kiblnd_msg_queue_size(version, ni); + rej.ibr_cp.ibcp_max_frags = kiblnd_rdma_frags(version, ni); kiblnd_reject(cmid, &rej); return -ECONNREFUSED; diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c index b4607da..a6415fc 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c @@ -171,6 +171,17 @@ kib_tunables_t kiblnd_tunables = { .kib_nscheds = &nscheds }; +/* # messages/RDMAs in-flight */ +int kiblnd_msg_queue_size(int version, lnet_ni_t *ni) +{ + if (version == IBLND_MSG_VERSION_1) + return IBLND_MSG_QUEUE_SIZE_V1; + else if (ni) + return ni->ni_peertxcredits; + else + return peer_credits; +} + int kiblnd_tunables_init(void) { -- cgit v0.10.2 From 025ba826316c9809073702302578efcfa4ba3f6f Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Fri, 6 May 2016 21:30:26 -0400 Subject: staging: lustre: o2iblnd: create default o2iblnd tunable settings Create and set the default o2iblnd tunables when the ko2iblnd module loads. Move kiblnd_tunables_setup() to when the NI iterface is initialized. Signed-off-by: Amir Shehata Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101 Reviewed-on: http://review.whamcloud.com/16367 Reviewed-by: Doug Oucharek Reviewed-by: Olaf Weber Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 425148b..92362b3 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -2920,6 +2920,9 @@ static int kiblnd_startup(lnet_ni_t *ni) net->ibn_incarnation = tv.tv_sec * USEC_PER_SEC + tv.tv_nsec / NSEC_PER_USEC; + rc = kiblnd_tunables_setup(); + if (rc) + goto net_failed; ni->ni_peertimeout = *kiblnd_tunables.kib_peertimeout; ni->ni_maxtxcredits = *kiblnd_tunables.kib_credits; ni->ni_peertxcredits = *kiblnd_tunables.kib_peertxcredits; @@ -3005,8 +3008,6 @@ static void __exit ko2iblnd_exit(void) static int __init ko2iblnd_init(void) { - int rc; - CLASSERT(sizeof(kib_msg_t) <= IBLND_MSG_SIZE); CLASSERT(offsetof(kib_msg_t, ibm_u.get.ibgm_rd.rd_frags[IBLND_MAX_RDMA_FRAGS]) @@ -3015,9 +3016,7 @@ static int __init ko2iblnd_init(void) ibm_u.putack.ibpam_rd.rd_frags[IBLND_MAX_RDMA_FRAGS]) <= IBLND_MSG_SIZE); - rc = kiblnd_tunables_init(); - if (rc) - return rc; + kiblnd_tunables_init(); lnet_register_lnd(&the_o2iblnd); diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index fab0ef9..80e11bc 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -994,7 +994,8 @@ int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, kib_tx_t *tx, kib_fmr_t *fmr); void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status); -int kiblnd_tunables_init(void); +int kiblnd_tunables_setup(void); +void kiblnd_tunables_init(void); void kiblnd_tunables_fini(void); int kiblnd_connd(void *arg); diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c index a6415fc..cc1469d 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c @@ -171,6 +171,8 @@ kib_tunables_t kiblnd_tunables = { .kib_nscheds = &nscheds }; +static struct lnet_ioctl_config_o2iblnd_tunables default_tunables; + /* # messages/RDMAs in-flight */ int kiblnd_msg_queue_size(int version, lnet_ni_t *ni) { @@ -182,8 +184,7 @@ int kiblnd_msg_queue_size(int version, lnet_ni_t *ni) return peer_credits; } -int -kiblnd_tunables_init(void) +int kiblnd_tunables_setup(void) { if (kiblnd_translate_mtu(*kiblnd_tunables.kib_ib_mtu) < 0) { CERROR("Invalid ib_mtu %d, expected 256/512/1024/2048/4096\n", @@ -234,3 +235,14 @@ kiblnd_tunables_init(void) return 0; } + +void kiblnd_tunables_init(void) +{ + default_tunables.lnd_version = 0; + default_tunables.lnd_peercredits_hiw = peer_credits_hiw, + default_tunables.lnd_map_on_demand = map_on_demand; + default_tunables.lnd_concurrent_sends = concurrent_sends; + default_tunables.lnd_fmr_pool_size = fmr_pool_size; + default_tunables.lnd_fmr_flush_trigger = fmr_flush_trigger; + default_tunables.lnd_fmr_cache = fmr_cache; +} -- cgit v0.10.2 From f6e500660d74bdcc32560eb7f94a434f38d1c9f2 Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Fri, 6 May 2016 21:30:27 -0400 Subject: staging: lustre: o2iblnd: use data in lnet_ni_t instead of kiblnd_tunables Currently the ko2iblnd creates a kib_tunable_t stucture to allow the ko2iblnd driver to access the module parameters throught the code. Some of those data fields also exist in lnet_ni_t. Migrate to using the lnet_ni_t data fields instead of kib_tunable_t. Signed-off-by: Amir Shehata Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101 Reviewed-on: http://review.whamcloud.com/16367 Reviewed-by: Doug Oucharek Reviewed-by: Olaf Weber Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 92362b3..89c879d 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -336,7 +336,7 @@ int kiblnd_create_peer(lnet_ni_t *ni, kib_peer_t **peerp, lnet_nid_t nid) peer->ibp_error = 0; peer->ibp_last_alive = 0; peer->ibp_max_frags = kiblnd_cfg_rdma_frags(peer->ibp_ni); - peer->ibp_queue_depth = *kiblnd_tunables.kib_peertxcredits; + peer->ibp_queue_depth = ni->ni_peertxcredits; atomic_set(&peer->ibp_refcount, 1); /* 1 ref for caller */ INIT_LIST_HEAD(&peer->ibp_list); /* not in the peer table yet */ @@ -2920,13 +2920,9 @@ static int kiblnd_startup(lnet_ni_t *ni) net->ibn_incarnation = tv.tv_sec * USEC_PER_SEC + tv.tv_nsec / NSEC_PER_USEC; - rc = kiblnd_tunables_setup(); + rc = kiblnd_tunables_setup(ni); if (rc) goto net_failed; - ni->ni_peertimeout = *kiblnd_tunables.kib_peertimeout; - ni->ni_maxtxcredits = *kiblnd_tunables.kib_credits; - ni->ni_peertxcredits = *kiblnd_tunables.kib_peertxcredits; - ni->ni_peerrtrcredits = *kiblnd_tunables.kib_peerrtrcredits; if (ni->ni_interfaces[0]) { /* Use the IPoIB interface specified in 'networks=' */ diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index 80e11bc..fffae0c 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -87,11 +87,7 @@ typedef struct { int *kib_timeout; /* comms timeout (seconds) */ int *kib_keepalive; /* keepalive timeout (seconds) */ int *kib_ntx; /* # tx descs */ - int *kib_credits; /* # concurrent sends */ - int *kib_peertxcredits; /* # concurrent sends to 1 peer */ - int *kib_peerrtrcredits; /* # per-peer router buffer credits */ int *kib_peercredits_hiw; /* # when eagerly to return credits */ - int *kib_peertimeout; /* seconds to consider peer dead */ char **kib_default_ipif; /* default IPoIB interface */ int *kib_retry_count; int *kib_rnr_retry_count; @@ -994,7 +990,7 @@ int kiblnd_fmr_pool_map(kib_fmr_poolset_t *fps, kib_tx_t *tx, kib_fmr_t *fmr); void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status); -int kiblnd_tunables_setup(void); +int kiblnd_tunables_setup(struct lnet_ni *ni); void kiblnd_tunables_init(void); void kiblnd_tunables_fini(void); diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c index cc1469d..e50a9cf 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c @@ -152,11 +152,7 @@ kib_tunables_t kiblnd_tunables = { .kib_timeout = &timeout, .kib_keepalive = &keepalive, .kib_ntx = &ntx, - .kib_credits = &credits, - .kib_peertxcredits = &peer_credits, .kib_peercredits_hiw = &peer_credits_hiw, - .kib_peerrtrcredits = &peer_buffer_credits, - .kib_peertimeout = &peer_timeout, .kib_default_ipif = &ipif_name, .kib_retry_count = &retry_count, .kib_rnr_retry_count = &rnr_retry_count, @@ -184,7 +180,7 @@ int kiblnd_msg_queue_size(int version, lnet_ni_t *ni) return peer_credits; } -int kiblnd_tunables_setup(void) +int kiblnd_tunables_setup(struct lnet_ni *ni) { if (kiblnd_translate_mtu(*kiblnd_tunables.kib_ib_mtu) < 0) { CERROR("Invalid ib_mtu %d, expected 256/512/1024/2048/4096\n", @@ -192,20 +188,32 @@ int kiblnd_tunables_setup(void) return -EINVAL; } - if (*kiblnd_tunables.kib_peertxcredits < IBLND_CREDITS_DEFAULT) - *kiblnd_tunables.kib_peertxcredits = IBLND_CREDITS_DEFAULT; + if (!ni->ni_peertimeout) + ni->ni_peertimeout = peer_timeout; - if (*kiblnd_tunables.kib_peertxcredits > IBLND_CREDITS_MAX) - *kiblnd_tunables.kib_peertxcredits = IBLND_CREDITS_MAX; + if (!ni->ni_maxtxcredits) + ni->ni_maxtxcredits = credits; - if (*kiblnd_tunables.kib_peertxcredits > *kiblnd_tunables.kib_credits) - *kiblnd_tunables.kib_peertxcredits = *kiblnd_tunables.kib_credits; + if (!ni->ni_peertxcredits) + ni->ni_peertxcredits = peer_credits; - if (*kiblnd_tunables.kib_peercredits_hiw < *kiblnd_tunables.kib_peertxcredits / 2) - *kiblnd_tunables.kib_peercredits_hiw = *kiblnd_tunables.kib_peertxcredits / 2; + if (!ni->ni_peerrtrcredits) + ni->ni_peerrtrcredits = peer_buffer_credits; - if (*kiblnd_tunables.kib_peercredits_hiw >= *kiblnd_tunables.kib_peertxcredits) - *kiblnd_tunables.kib_peercredits_hiw = *kiblnd_tunables.kib_peertxcredits - 1; + if (ni->ni_peertxcredits < IBLND_CREDITS_DEFAULT) + ni->ni_peertxcredits = IBLND_CREDITS_DEFAULT; + + if (ni->ni_peertxcredits > IBLND_CREDITS_MAX) + ni->ni_peertxcredits = IBLND_CREDITS_MAX; + + if (ni->ni_peertxcredits > credits) + ni->ni_peertxcredits = credits; + + if (*kiblnd_tunables.kib_peercredits_hiw < ni->ni_peertxcredits / 2) + *kiblnd_tunables.kib_peercredits_hiw = ni->ni_peertxcredits / 2; + + if (*kiblnd_tunables.kib_peercredits_hiw >= ni->ni_peertxcredits) + *kiblnd_tunables.kib_peercredits_hiw = ni->ni_peertxcredits - 1; if (*kiblnd_tunables.kib_map_on_demand < 0 || *kiblnd_tunables.kib_map_on_demand > IBLND_MAX_RDMA_FRAGS) @@ -217,20 +225,20 @@ int kiblnd_tunables_setup(void) if (!*kiblnd_tunables.kib_concurrent_sends) { if (*kiblnd_tunables.kib_map_on_demand > 0 && *kiblnd_tunables.kib_map_on_demand <= IBLND_MAX_RDMA_FRAGS / 8) - *kiblnd_tunables.kib_concurrent_sends = (*kiblnd_tunables.kib_peertxcredits) * 2; + *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits * 2; else - *kiblnd_tunables.kib_concurrent_sends = (*kiblnd_tunables.kib_peertxcredits); + *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits; } - if (*kiblnd_tunables.kib_concurrent_sends > *kiblnd_tunables.kib_peertxcredits * 2) - *kiblnd_tunables.kib_concurrent_sends = *kiblnd_tunables.kib_peertxcredits * 2; + if (*kiblnd_tunables.kib_concurrent_sends > ni->ni_peertxcredits * 2) + *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits * 2; - if (*kiblnd_tunables.kib_concurrent_sends < *kiblnd_tunables.kib_peertxcredits / 2) - *kiblnd_tunables.kib_concurrent_sends = *kiblnd_tunables.kib_peertxcredits / 2; + if (*kiblnd_tunables.kib_concurrent_sends < ni->ni_peertxcredits / 2) + *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits / 2; - if (*kiblnd_tunables.kib_concurrent_sends < *kiblnd_tunables.kib_peertxcredits) { + if (*kiblnd_tunables.kib_concurrent_sends < ni->ni_peertxcredits) { CWARN("Concurrent sends %d is lower than message queue size: %d, performance may drop slightly.\n", - *kiblnd_tunables.kib_concurrent_sends, *kiblnd_tunables.kib_peertxcredits); + *kiblnd_tunables.kib_concurrent_sends, ni->ni_peertxcredits); } return 0; -- cgit v0.10.2 From 32c8deb8b620918db0c55fb3f3b3f9ff9f935635 Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Fri, 6 May 2016 21:30:28 -0400 Subject: staging: lustre: o2iblnd: per NI map-on-demand value Enables support of different map-on-demand values per NI. This is required to support OPA coexistence with MLX5 cards. MLX5 does not support FMR, which is enabled via map-on-demand. However OPA's performance is greatly enahanced when FMR is enabled. In order to enable coexistence of both of these two types of cards we need to be able to set different map-on-demand values for both NIs. This patch also lays the ground work for other per NI tunables to be added in future patches. Signed-off-by: Amir Shehata Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101 Reviewed-on: http://review.whamcloud.com/16367 Reviewed-by: Doug Oucharek Reviewed-by: Olaf Weber Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 89c879d..d99b4fa 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -1283,16 +1283,22 @@ static void kiblnd_map_tx_pool(kib_tx_pool_t *tpo) } } -struct ib_mr *kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev, kib_rdma_desc_t *rd, +struct ib_mr *kiblnd_find_rd_dma_mr(struct lnet_ni *ni, kib_rdma_desc_t *rd, int negotiated_nfrags) { - __u16 nfrags = (negotiated_nfrags != -1) ? - negotiated_nfrags : *kiblnd_tunables.kib_map_on_demand; + kib_net_t *net = ni->ni_data; + kib_hca_dev_t *hdev = net->ibn_dev->ibd_hdev; + struct lnet_ioctl_config_o2iblnd_tunables *tunables; + __u16 nfrags; + int mod; + + tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib; + mod = tunables->lnd_map_on_demand; + nfrags = (negotiated_nfrags != -1) ? negotiated_nfrags : mod; LASSERT(hdev->ibh_mrs); - if (*kiblnd_tunables.kib_map_on_demand > 0 && - nfrags <= rd->rd_nfrags) + if (mod > 0 && nfrags <= rd->rd_nfrags) return NULL; return hdev->ibh_mrs; @@ -1337,16 +1343,20 @@ static void kiblnd_destroy_fmr_pool_list(struct list_head *head) } } -static int kiblnd_fmr_pool_size(int ncpts) +static int +kiblnd_fmr_pool_size(struct lnet_ioctl_config_o2iblnd_tunables *tunables, + int ncpts) { - int size = *kiblnd_tunables.kib_fmr_pool_size / ncpts; + int size = tunables->lnd_fmr_pool_size / ncpts; return max(IBLND_FMR_POOL, size); } -static int kiblnd_fmr_flush_trigger(int ncpts) +static int +kiblnd_fmr_flush_trigger(struct lnet_ioctl_config_o2iblnd_tunables *tunables, + int ncpts) { - int size = *kiblnd_tunables.kib_fmr_flush_trigger / ncpts; + int size = tunables->lnd_fmr_flush_trigger / ncpts; return max(IBLND_FMR_POOL_FLUSH, size); } @@ -1362,7 +1372,7 @@ static int kiblnd_alloc_fmr_pool(kib_fmr_poolset_t *fps, kib_fmr_pool_t *fpo) .dirty_watermark = fps->fps_flush_trigger, .flush_function = NULL, .flush_arg = NULL, - .cache = !!*kiblnd_tunables.kib_fmr_cache}; + .cache = !!fps->fps_cache }; int rc = 0; fpo->fmr.fpo_fmr_pool = ib_create_fmr_pool(fpo->fpo_hdev->ibh_pd, @@ -1508,9 +1518,10 @@ static void kiblnd_fini_fmr_poolset(kib_fmr_poolset_t *fps) } } -static int kiblnd_init_fmr_poolset(kib_fmr_poolset_t *fps, int cpt, - kib_net_t *net, int pool_size, - int flush_trigger) +static int +kiblnd_init_fmr_poolset(kib_fmr_poolset_t *fps, int cpt, int ncpts, + kib_net_t *net, + struct lnet_ioctl_config_o2iblnd_tunables *tunables) { kib_fmr_pool_t *fpo; int rc; @@ -1519,8 +1530,11 @@ static int kiblnd_init_fmr_poolset(kib_fmr_poolset_t *fps, int cpt, fps->fps_net = net; fps->fps_cpt = cpt; - fps->fps_pool_size = pool_size; - fps->fps_flush_trigger = flush_trigger; + + fps->fps_pool_size = kiblnd_fmr_pool_size(tunables, ncpts); + fps->fps_flush_trigger = kiblnd_fmr_flush_trigger(tunables, ncpts); + fps->fps_cache = tunables->lnd_fmr_cache; + spin_lock_init(&fps->fps_lock); INIT_LIST_HEAD(&fps->fps_pool_list); INIT_LIST_HEAD(&fps->fps_failed_pool_list); @@ -2150,25 +2164,28 @@ static void kiblnd_net_fini_pools(kib_net_t *net) } } -static int kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts) +static int kiblnd_net_init_pools(kib_net_t *net, lnet_ni_t *ni, __u32 *cpts, + int ncpts) { + struct lnet_ioctl_config_o2iblnd_tunables *tunables; unsigned long flags; int cpt; - int rc = 0; + int rc; int i; + tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib; + read_lock_irqsave(&kiblnd_data.kib_global_lock, flags); - if (!*kiblnd_tunables.kib_map_on_demand) { + if (!tunables->lnd_map_on_demand) { read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags); goto create_tx_pool; } read_unlock_irqrestore(&kiblnd_data.kib_global_lock, flags); - if (*kiblnd_tunables.kib_fmr_pool_size < - *kiblnd_tunables.kib_ntx / 4) { + if (tunables->lnd_fmr_pool_size < *kiblnd_tunables.kib_ntx / 4) { CERROR("Can't set fmr pool size (%d) < ntx / 4(%d)\n", - *kiblnd_tunables.kib_fmr_pool_size, + tunables->lnd_fmr_pool_size, *kiblnd_tunables.kib_ntx / 4); rc = -EINVAL; goto failed; @@ -2198,9 +2215,8 @@ static int kiblnd_net_init_pools(kib_net_t *net, __u32 *cpts, int ncpts) for (i = 0; i < ncpts; i++) { cpt = !cpts ? i : cpts[i]; - rc = kiblnd_init_fmr_poolset(net->ibn_fmr_ps[cpt], cpt, net, - kiblnd_fmr_pool_size(ncpts), - kiblnd_fmr_flush_trigger(ncpts)); + rc = kiblnd_init_fmr_poolset(net->ibn_fmr_ps[cpt], cpt, ncpts, + net, tunables); if (rc) { CERROR("Can't initialize FMR pool for CPT %d: %d\n", cpt, rc); @@ -2961,7 +2977,7 @@ static int kiblnd_startup(lnet_ni_t *ni) if (rc) goto failed; - rc = kiblnd_net_init_pools(net, ni->ni_cpts, ni->ni_ncpts); + rc = kiblnd_net_init_pools(net, ni, ni->ni_cpts, ni->ni_ncpts); if (rc) { CERROR("Failed to initialize NI pools: %d\n", rc); goto failed; diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index fffae0c..d458773b 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -87,18 +87,10 @@ typedef struct { int *kib_timeout; /* comms timeout (seconds) */ int *kib_keepalive; /* keepalive timeout (seconds) */ int *kib_ntx; /* # tx descs */ - int *kib_peercredits_hiw; /* # when eagerly to return credits */ char **kib_default_ipif; /* default IPoIB interface */ int *kib_retry_count; int *kib_rnr_retry_count; - int *kib_concurrent_sends; /* send work queue sizing */ int *kib_ib_mtu; /* IB MTU */ - int *kib_map_on_demand; /* map-on-demand if RD has more */ - /* fragments than this value, 0 */ - /* disable map-on-demand */ - int *kib_fmr_pool_size; /* # FMRs in pool */ - int *kib_fmr_flush_trigger; /* When to trigger FMR flush */ - int *kib_fmr_cache; /* enable FMR pool cache? */ int *kib_require_priv_port; /* accept only privileged ports */ int *kib_use_priv_port; /* use privileged port for active connect */ int *kib_nscheds; /* # threads on each CPT */ @@ -112,9 +104,10 @@ extern kib_tunables_t kiblnd_tunables; #define IBLND_CREDITS_DEFAULT 8 /* default # of peer credits */ #define IBLND_CREDITS_MAX ((typeof(((kib_msg_t *) 0)->ibm_credits)) - 1) /* Max # of peer credits */ -#define IBLND_CREDITS_HIGHWATER(v) ((v) == IBLND_MSG_VERSION_1 ? \ - IBLND_CREDIT_HIGHWATER_V1 : \ - *kiblnd_tunables.kib_peercredits_hiw) /* when eagerly to return credits */ +/* when eagerly to return credits */ +#define IBLND_CREDITS_HIGHWATER(t, v) ((v) == IBLND_MSG_VERSION_1 ? \ + IBLND_CREDIT_HIGHWATER_V1 : \ + t->lnd_peercredits_hiw) #define kiblnd_rdma_create_id(cb, dev, ps, qpt) rdma_create_id(&init_net, \ cb, dev, \ @@ -260,6 +253,7 @@ typedef struct { int fps_cpt; /* CPT id */ int fps_pool_size; int fps_flush_trigger; + int fps_cache; int fps_increasing; /* is allocating new pool */ unsigned long fps_next_retry; /* time stamp for retry if*/ /* failed to allocate */ @@ -614,7 +608,11 @@ int kiblnd_msg_queue_size(int version, struct lnet_ni *ni); static inline int kiblnd_cfg_rdma_frags(struct lnet_ni *ni) { - int mod = *kiblnd_tunables.kib_map_on_demand; + struct lnet_ioctl_config_o2iblnd_tunables *tunables; + int mod; + + tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib; + mod = tunables->lnd_map_on_demand; return mod ? mod : IBLND_MAX_RDMA_FRAGS; } @@ -629,9 +627,11 @@ kiblnd_rdma_frags(int version, struct lnet_ni *ni) static inline int kiblnd_concurrent_sends(int version, struct lnet_ni *ni) { + struct lnet_ioctl_config_o2iblnd_tunables *tunables; int concurrent_sends; - concurrent_sends = *kiblnd_tunables.kib_concurrent_sends; + tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib; + concurrent_sends = tunables->lnd_concurrent_sends; if (version == IBLND_MSG_VERSION_1) { if (concurrent_sends > IBLND_MSG_QUEUE_SIZE_V1 * 2) @@ -766,10 +766,14 @@ kiblnd_send_keepalive(kib_conn_t *conn) static inline int kiblnd_need_noop(kib_conn_t *conn) { + struct lnet_ioctl_config_o2iblnd_tunables *tunables; + lnet_ni_t *ni = conn->ibc_peer->ibp_ni; + LASSERT(conn->ibc_state >= IBLND_CONN_ESTABLISHED); + tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib; if (conn->ibc_outstanding_credits < - IBLND_CREDITS_HIGHWATER(conn->ibc_version) && + IBLND_CREDITS_HIGHWATER(tunables, conn->ibc_version) && !kiblnd_send_keepalive(conn)) return 0; /* No need to send NOOP */ @@ -977,8 +981,7 @@ static inline unsigned int kiblnd_sg_dma_len(struct ib_device *dev, #define KIBLND_CONN_PARAM(e) ((e)->param.conn.private_data) #define KIBLND_CONN_PARAM_LEN(e) ((e)->param.conn.private_data_len) -struct ib_mr *kiblnd_find_rd_dma_mr(kib_hca_dev_t *hdev, - kib_rdma_desc_t *rd, +struct ib_mr *kiblnd_find_rd_dma_mr(struct lnet_ni *ni, kib_rdma_desc_t *rd, int negotiated_nfrags); void kiblnd_map_rx_descs(kib_conn_t *conn); void kiblnd_unmap_rx_descs(kib_conn_t *conn); diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index 5d4a35b..52ee6f9 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -612,8 +612,8 @@ static void kiblnd_unmap_tx(lnet_ni_t *ni, kib_tx_t *tx) static int kiblnd_map_tx(lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd, int nfrags) { - kib_hca_dev_t *hdev = tx->tx_pool->tpo_hdev; kib_net_t *net = ni->ni_data; + kib_hca_dev_t *hdev = net->ibn_dev->ibd_hdev; struct ib_mr *mr = NULL; __u32 nob; int i; @@ -636,7 +636,7 @@ static int kiblnd_map_tx(lnet_ni_t *ni, kib_tx_t *tx, kib_rdma_desc_t *rd, nob += rd->rd_frags[i].rf_nob; } - mr = kiblnd_find_rd_dma_mr(hdev, rd, tx->tx_conn ? + mr = kiblnd_find_rd_dma_mr(ni, rd, tx->tx_conn ? tx->tx_conn->ibc_max_frags : -1); if (mr) { /* found pre-mapping MR */ @@ -2577,12 +2577,15 @@ kiblnd_check_reconnect(kib_conn_t *conn, int version, reason = "Unknown"; break; - case IBLND_REJECT_RDMA_FRAGS: + case IBLND_REJECT_RDMA_FRAGS: { + struct lnet_ioctl_config_lnd_tunables *tunables; + if (!cp) { reason = "can't negotiate max frags"; goto out; } - if (!*kiblnd_tunables.kib_map_on_demand) { + tunables = peer->ibp_ni->ni_lnd_tunables; + if (!tunables->lt_tun_u.lt_o2ib.lnd_map_on_demand) { reason = "map_on_demand must be enabled"; goto out; } @@ -2594,7 +2597,7 @@ kiblnd_check_reconnect(kib_conn_t *conn, int version, peer->ibp_max_frags = frag_num; reason = "rdma fragments"; break; - + } case IBLND_REJECT_MSG_QUEUE_SIZE: if (!cp) { reason = "can't negotiate queue depth"; diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c index e50a9cf..f8fdd4a 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c @@ -152,16 +152,10 @@ kib_tunables_t kiblnd_tunables = { .kib_timeout = &timeout, .kib_keepalive = &keepalive, .kib_ntx = &ntx, - .kib_peercredits_hiw = &peer_credits_hiw, .kib_default_ipif = &ipif_name, .kib_retry_count = &retry_count, .kib_rnr_retry_count = &rnr_retry_count, - .kib_concurrent_sends = &concurrent_sends, .kib_ib_mtu = &ib_mtu, - .kib_map_on_demand = &map_on_demand, - .kib_fmr_pool_size = &fmr_pool_size, - .kib_fmr_flush_trigger = &fmr_flush_trigger, - .kib_fmr_cache = &fmr_cache, .kib_require_priv_port = &require_privileged_port, .kib_use_priv_port = &use_privileged_port, .kib_nscheds = &nscheds @@ -182,6 +176,26 @@ int kiblnd_msg_queue_size(int version, lnet_ni_t *ni) int kiblnd_tunables_setup(struct lnet_ni *ni) { + struct lnet_ioctl_config_o2iblnd_tunables *tunables; + + /* + * if there was no tunables specified, setup the tunables to be + * defaulted + */ + if (!ni->ni_lnd_tunables) { + LIBCFS_ALLOC(ni->ni_lnd_tunables, + sizeof(*ni->ni_lnd_tunables)); + if (!ni->ni_lnd_tunables) + return -ENOMEM; + + memcpy(&ni->ni_lnd_tunables->lt_tun_u.lt_o2ib, + &default_tunables, sizeof(*tunables)); + } + tunables = &ni->ni_lnd_tunables->lt_tun_u.lt_o2ib; + + /* Current API version */ + tunables->lnd_version = 0; + if (kiblnd_translate_mtu(*kiblnd_tunables.kib_ib_mtu) < 0) { CERROR("Invalid ib_mtu %d, expected 256/512/1024/2048/4096\n", *kiblnd_tunables.kib_ib_mtu); @@ -209,38 +223,54 @@ int kiblnd_tunables_setup(struct lnet_ni *ni) if (ni->ni_peertxcredits > credits) ni->ni_peertxcredits = credits; - if (*kiblnd_tunables.kib_peercredits_hiw < ni->ni_peertxcredits / 2) - *kiblnd_tunables.kib_peercredits_hiw = ni->ni_peertxcredits / 2; + if (!tunables->lnd_peercredits_hiw) + tunables->lnd_peercredits_hiw = peer_credits_hiw; - if (*kiblnd_tunables.kib_peercredits_hiw >= ni->ni_peertxcredits) - *kiblnd_tunables.kib_peercredits_hiw = ni->ni_peertxcredits - 1; + if (tunables->lnd_peercredits_hiw < ni->ni_peertxcredits / 2) + tunables->lnd_peercredits_hiw = ni->ni_peertxcredits / 2; - if (*kiblnd_tunables.kib_map_on_demand < 0 || - *kiblnd_tunables.kib_map_on_demand > IBLND_MAX_RDMA_FRAGS) - *kiblnd_tunables.kib_map_on_demand = 0; /* disable map-on-demand */ + if (tunables->lnd_peercredits_hiw >= ni->ni_peertxcredits) + tunables->lnd_peercredits_hiw = ni->ni_peertxcredits - 1; - if (*kiblnd_tunables.kib_map_on_demand == 1) - *kiblnd_tunables.kib_map_on_demand = 2; /* don't make sense to create map if only one fragment */ + if (tunables->lnd_map_on_demand < 0 || + tunables->lnd_map_on_demand > IBLND_MAX_RDMA_FRAGS) { + /* disable map-on-demand */ + tunables->lnd_map_on_demand = 0; + } - if (!*kiblnd_tunables.kib_concurrent_sends) { - if (*kiblnd_tunables.kib_map_on_demand > 0 && - *kiblnd_tunables.kib_map_on_demand <= IBLND_MAX_RDMA_FRAGS / 8) - *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits * 2; - else - *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits; + if (tunables->lnd_map_on_demand == 1) { + /* don't make sense to create map if only one fragment */ + tunables->lnd_map_on_demand = 2; } - if (*kiblnd_tunables.kib_concurrent_sends > ni->ni_peertxcredits * 2) - *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits * 2; + if (!tunables->lnd_concurrent_sends) { + if (tunables->lnd_map_on_demand > 0 && + tunables->lnd_map_on_demand <= IBLND_MAX_RDMA_FRAGS / 8) { + tunables->lnd_concurrent_sends = + ni->ni_peertxcredits * 2; + } else { + tunables->lnd_concurrent_sends = ni->ni_peertxcredits; + } + } + + if (tunables->lnd_concurrent_sends > ni->ni_peertxcredits * 2) + tunables->lnd_concurrent_sends = ni->ni_peertxcredits * 2; - if (*kiblnd_tunables.kib_concurrent_sends < ni->ni_peertxcredits / 2) - *kiblnd_tunables.kib_concurrent_sends = ni->ni_peertxcredits / 2; + if (tunables->lnd_concurrent_sends < ni->ni_peertxcredits / 2) + tunables->lnd_concurrent_sends = ni->ni_peertxcredits / 2; - if (*kiblnd_tunables.kib_concurrent_sends < ni->ni_peertxcredits) { + if (tunables->lnd_concurrent_sends < ni->ni_peertxcredits) { CWARN("Concurrent sends %d is lower than message queue size: %d, performance may drop slightly.\n", - *kiblnd_tunables.kib_concurrent_sends, ni->ni_peertxcredits); + tunables->lnd_concurrent_sends, ni->ni_peertxcredits); } + if (!tunables->lnd_fmr_pool_size) + tunables->lnd_fmr_pool_size = fmr_pool_size; + if (!tunables->lnd_fmr_flush_trigger) + tunables->lnd_fmr_flush_trigger = fmr_flush_trigger; + if (!tunables->lnd_fmr_cache) + tunables->lnd_fmr_cache = fmr_cache; + return 0; } -- cgit v0.10.2 From 69b48fffc087cd212f3d109de298d0d23981e9ad Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Fri, 6 May 2016 21:30:29 -0400 Subject: staging: lustre: o2iblnd: remove last of kiblnd_tunables_fini The function kibnd_tunables_fini() no longer exist. Remove it from o2iblnd.h Signed-off-by: Amir Shehata Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101 Reviewed-on: http://review.whamcloud.com/16367 Reviewed-by: Doug Oucharek Reviewed-by: Olaf Weber Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index d458773b..b22984f 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -995,7 +995,6 @@ void kiblnd_fmr_pool_unmap(kib_fmr_t *fmr, int status); int kiblnd_tunables_setup(struct lnet_ni *ni); void kiblnd_tunables_init(void); -void kiblnd_tunables_fini(void); int kiblnd_connd(void *arg); int kiblnd_scheduler(void *arg); -- cgit v0.10.2 From 2c6a1845e62a02386ab61352c382f4ef9ce82e44 Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Fri, 6 May 2016 21:30:30 -0400 Subject: staging: lustre: o2iblnd: properly set ibr_why For the case of when the connections supported fragment count is smaller than what is supported locally only set ibr_why to IBLND_REJECT_RDMA_FRAGS if the ko2iblnd protocol verison is IBLND_MSG_VERSION. Signed-off-by: Amir Shehata Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101 Reviewed-on: http://review.whamcloud.com/16367 Reviewed-by: Doug Oucharek Reviewed-by: Olaf Weber Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index 52ee6f9..bbfee53 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -2360,7 +2360,7 @@ kiblnd_passive_connect(struct rdma_cm_id *cmid, void *priv, int priv_nob) reqmsg->ibm_u.connparams.ibcp_max_frags, kiblnd_rdma_frags(version, ni)); - if (version >= IBLND_MSG_VERSION) + if (version == IBLND_MSG_VERSION) rej.ibr_why = IBLND_REJECT_RDMA_FRAGS; goto failed; -- cgit v0.10.2 From 1b30ccded52fb2b297128b190b47641457ecc8f5 Mon Sep 17 00:00:00 2001 From: Amir Shehata Date: Fri, 6 May 2016 21:30:31 -0400 Subject: staging: lustre: lnet: enable configuration per NI interface Add the ability to configure each NI interface at bring up. Also give the ability for user land utilities to query the configuration of each NI interface. Signed-off-by: Amir Shehata Signed-off-by: James Simmons Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7101 Reviewed-on: http://review.whamcloud.com/16367 Reviewed-by: Doug Oucharek Reviewed-by: Olaf Weber Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c index 01e1808..fe0dbe7 100644 --- a/drivers/staging/lustre/lnet/lnet/api-ni.c +++ b/drivers/staging/lustre/lnet/lnet/api-ni.c @@ -1217,6 +1217,7 @@ lnet_shutdown_lndni(struct lnet_ni *ni) static int lnet_startup_lndni(struct lnet_ni *ni, struct lnet_ioctl_config_data *conf) { + struct lnet_ioctl_config_lnd_tunables *lnd_tunables = NULL; int rc = -EINVAL; int lnd_type; lnd_t *lnd; @@ -1274,6 +1275,21 @@ lnet_startup_lndni(struct lnet_ni *ni, struct lnet_ioctl_config_data *conf) ni->ni_lnd = lnd; + if (conf && conf->cfg_hdr.ioc_len > sizeof(*conf)) + lnd_tunables = (struct lnet_ioctl_config_lnd_tunables *)conf->cfg_bulk; + + if (lnd_tunables) { + LIBCFS_ALLOC(ni->ni_lnd_tunables, + sizeof(*ni->ni_lnd_tunables)); + if (!ni->ni_lnd_tunables) { + mutex_unlock(&the_lnet.ln_lnd_mutex); + rc = -ENOMEM; + goto failed0; + } + memcpy(ni->ni_lnd_tunables, lnd_tunables, + sizeof(*ni->ni_lnd_tunables)); + } + rc = lnd->lnd_startup(ni); mutex_unlock(&the_lnet.ln_lnd_mutex); @@ -1653,7 +1669,9 @@ EXPORT_SYMBOL(LNetNIFini); static void lnet_fill_ni_info(struct lnet_ni *ni, struct lnet_ioctl_config_data *config) { + struct lnet_ioctl_config_lnd_tunables *lnd_cfg = NULL; struct lnet_ioctl_net_config *net_config; + size_t min_size, tunable_size = 0; int i; if (!ni || !config) @@ -1691,6 +1709,30 @@ lnet_fill_ni_info(struct lnet_ni *ni, struct lnet_ioctl_config_data *config) config->cfg_ncpts = num_cpts; } + + /* + * See if user land tools sent in a newer and larger version + * of struct lnet_tunables than what the kernel uses. + */ + min_size = sizeof(*config) + sizeof(*net_config); + + if (config->cfg_hdr.ioc_len > min_size) + tunable_size = config->cfg_hdr.ioc_len - min_size; + + /* Don't copy to much data to user space */ + min_size = min(tunable_size, sizeof(*ni->ni_lnd_tunables)); + lnd_cfg = (struct lnet_ioctl_config_lnd_tunables *)net_config->cfg_bulk; + + if (ni->ni_lnd_tunables && lnd_cfg && min_size) { + memcpy(lnd_cfg, ni->ni_lnd_tunables, min_size); + config->cfg_config_u.cfg_net.net_interface_count = 1; + + /* Tell user land that kernel side has less data */ + if (tunable_size > sizeof(*ni->ni_lnd_tunables)) { + min_size = tunable_size - sizeof(ni->ni_lnd_tunables); + config->cfg_hdr.ioc_len -= min_size; + } + } } static int -- cgit v0.10.2 From a5b90ef7a1fed3fc0f7a4bf0ad0159eaddb2acfb Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Wed, 4 May 2016 14:13:48 +0900 Subject: staging: dgnc: clean up the dgnc_get_modem_info() the "ch" in dgnc_get_modem_info() was already checked before calling this function and also if "ch" is not NULL, dgnc_get_mstat() returns valid value so it doesn't need to check an error. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index 392d532..a505775 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -2020,17 +2020,7 @@ static inline int dgnc_get_mstat(struct channel_t *ch) static int dgnc_get_modem_info(struct channel_t *ch, unsigned int __user *value) { - int result; - - if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) - return -ENXIO; - - result = dgnc_get_mstat(ch); - - if (result < 0) - return -ENXIO; - - return put_user(result, value); + return put_user(dgnc_get_mstat(ch), value); } /* -- cgit v0.10.2 From edd19a2f9fd85824d7ae2ca24b7f04f2b8fa0920 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Mon, 9 May 2016 11:46:50 +0900 Subject: staging: dgnc: fix 'line over 80 characters' fix checkpatch.pl warning about 'line over 80 characters'. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_sysfs.c b/drivers/staging/dgnc/dgnc_sysfs.c index d825964..b8d41c5 100644 --- a/drivers/staging/dgnc/dgnc_sysfs.c +++ b/drivers/staging/dgnc/dgnc_sysfs.c @@ -189,19 +189,21 @@ static ssize_t dgnc_ports_msignals_show(struct device *p, DGNC_VERIFY_BOARD(p, bd); for (i = 0; i < bd->nasync; i++) { - if (bd->channels[i]->ch_open_count) { + struct channel_t *ch = bd->channels[i]; + + if (ch->ch_open_count) { count += snprintf(buf + count, PAGE_SIZE - count, "%d %s %s %s %s %s %s\n", - bd->channels[i]->ch_portnum, - (bd->channels[i]->ch_mostat & UART_MCR_RTS) ? "RTS" : "", - (bd->channels[i]->ch_mistat & UART_MSR_CTS) ? "CTS" : "", - (bd->channels[i]->ch_mostat & UART_MCR_DTR) ? "DTR" : "", - (bd->channels[i]->ch_mistat & UART_MSR_DSR) ? "DSR" : "", - (bd->channels[i]->ch_mistat & UART_MSR_DCD) ? "DCD" : "", - (bd->channels[i]->ch_mistat & UART_MSR_RI) ? "RI" : ""); + ch->ch_portnum, + (ch->ch_mostat & UART_MCR_RTS) ? "RTS" : "", + (ch->ch_mistat & UART_MSR_CTS) ? "CTS" : "", + (ch->ch_mostat & UART_MCR_DTR) ? "DTR" : "", + (ch->ch_mistat & UART_MSR_DSR) ? "DSR" : "", + (ch->ch_mistat & UART_MSR_DCD) ? "DCD" : "", + (ch->ch_mistat & UART_MSR_RI) ? "RI" : ""); } else { count += snprintf(buf + count, PAGE_SIZE - count, - "%d\n", bd->channels[i]->ch_portnum); + "%d\n", ch->ch_portnum); } } return count; -- cgit v0.10.2 From c246e2305aa2a70d720b4d50427d25bf786de7e6 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Mon, 9 May 2016 11:47:11 +0900 Subject: staging: dgnc: remove redundant condition check dgnc_board(brd) was already checked for NULL before calling neo_parse_isr(). And also port doesn't need to check. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index 3b8ce38..9eae1a6 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -379,12 +379,6 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port) unsigned char cause; unsigned long flags; - if (!brd || brd->magic != DGNC_BOARD_MAGIC) - return; - - if (port >= brd->maxports) - return; - ch = brd->channels[port]; if (ch->magic != DGNC_CHANNEL_MAGIC) return; -- cgit v0.10.2 From bddb1531086ff40e8eb81dd1e30b56407a7a4279 Mon Sep 17 00:00:00 2001 From: Daeseok Youn Date: Mon, 9 May 2016 11:47:34 +0900 Subject: staging: dgnc: Need to check for NULL of ch the "ch" from brd structure could be NULL, it need to check for NULL. Signed-off-by: Daeseok Youn Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index 9eae1a6..ba57e95 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -380,7 +380,7 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port) unsigned long flags; ch = brd->channels[port]; - if (ch->magic != DGNC_CHANNEL_MAGIC) + if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) return; /* Here we try to figure out what caused the interrupt to happen */ -- cgit v0.10.2 From 9136d04fe9255522c4c8ef5124be899906de7dd1 Mon Sep 17 00:00:00 2001 From: Alexander Curtin Date: Fri, 6 May 2016 13:11:15 -0400 Subject: staging: unisys: visorhba: replace functionlike macro with function The `set_no_disk_inquiry_request` function now uses the correct min macro. Also I removed an unnecessary conditional. Get rid of u8 casts, u32 len, and u32 lun (which is actually defined as a u64 in the scsidev->lun field from whence it originated). Signed-off-by: Alexander Curtin Signed-off-by: Tim Sell Signed-off-by: Erik Arfvidson Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/include/iochannel.h b/drivers/staging/unisys/include/iochannel.h index 880d9f0..5ccf814 100644 --- a/drivers/staging/unisys/include/iochannel.h +++ b/drivers/staging/unisys/include/iochannel.h @@ -253,48 +253,6 @@ struct uiscmdrsp_scsi { /* SCSI device version for no disk inquiry result */ #define SCSI_SPC2_VER 4 /* indicates SCSI SPC2 (SPC3 is 5) */ -/* Windows and Linux want different things for a non-existent lun. So, we'll let - * caller pass in the peripheral qualifier and type. - * NOTE:[4] SCSI returns (n-4); so we return length-1-4 or length-5. - */ - -#define SET_NO_DISK_INQUIRY_RESULT(buf, len, lun, lun0notpresent, notpresent) \ - do { \ - memset(buf, 0, \ - MINNUM(len, \ - (unsigned int)NO_DISK_INQUIRY_RESULT_LEN)); \ - buf[2] = (u8)SCSI_SPC2_VER; \ - if (lun == 0) { \ - buf[0] = (u8)lun0notpresent; \ - buf[3] = (u8)DEV_HISUPPORT; \ - } else \ - buf[0] = (u8)notpresent; \ - buf[4] = (u8)( \ - MINNUM(len, \ - (unsigned int)NO_DISK_INQUIRY_RESULT_LEN) - 5);\ - if (len >= NO_DISK_INQUIRY_RESULT_LEN) { \ - buf[8] = 'D'; \ - buf[9] = 'E'; \ - buf[10] = 'L'; \ - buf[11] = 'L'; \ - buf[16] = 'P'; \ - buf[17] = 'S'; \ - buf[18] = 'E'; \ - buf[19] = 'U'; \ - buf[20] = 'D'; \ - buf[21] = 'O'; \ - buf[22] = ' '; \ - buf[23] = 'D'; \ - buf[24] = 'E'; \ - buf[25] = 'V'; \ - buf[26] = 'I'; \ - buf[27] = 'C'; \ - buf[28] = 'E'; \ - buf[30] = ' '; \ - buf[31] = '.'; \ - } \ - } while (0) - /* Struct & Defines to support sense information. */ /* The following struct is returned in sensebuf field in uiscmdrsp_scsi. It is diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c b/drivers/staging/unisys/visorhba/visorhba_main.c index e93bb1d..6f53f3d 100644 --- a/drivers/staging/unisys/visorhba/visorhba_main.c +++ b/drivers/staging/unisys/visorhba/visorhba_main.c @@ -52,6 +52,8 @@ static int visorhba_resume(struct visor_device *dev, static ssize_t info_debugfs_read(struct file *file, char __user *buf, size_t len, loff_t *offset); +static int set_no_disk_inquiry_result(unsigned char *buf, + size_t len, bool is_lun0); static struct dentry *visorhba_debugfs_dir; static const struct file_operations debugfs_info_fops = { .read = info_debugfs_read, @@ -772,6 +774,24 @@ do_scsi_linuxstat(struct uiscmdrsp *cmdrsp, struct scsi_cmnd *scsicmd) } } +static int set_no_disk_inquiry_result(unsigned char *buf, + size_t len, bool is_lun0) +{ + if (!buf || len < NO_DISK_INQUIRY_RESULT_LEN) + return -EINVAL; + memset(buf, 0, NO_DISK_INQUIRY_RESULT_LEN); + buf[2] = SCSI_SPC2_VER; + if (is_lun0) { + buf[0] = DEV_DISK_CAPABLE_NOT_PRESENT; + buf[3] = DEV_HISUPPORT; + } else { + buf[0] = DEV_NOT_CAPABLE; + } + buf[4] = NO_DISK_INQUIRY_RESULT_LEN - 5; + strncpy(buf + 8, "DELLPSEUDO DEVICE .", NO_DISK_INQUIRY_RESULT_LEN - 8); + return 0; +} + /** * do_scsi_nolinuxstat - scsi command didn't have linuxstat * @cmdrsp: response from IOVM @@ -804,10 +824,8 @@ do_scsi_nolinuxstat(struct uiscmdrsp *cmdrsp, struct scsi_cmnd *scsicmd) * a disk there so we'll present a processor * there. */ - SET_NO_DISK_INQUIRY_RESULT(buf, cmdrsp->scsi.bufflen, - scsidev->lun, - DEV_DISK_CAPABLE_NOT_PRESENT, - DEV_NOT_CAPABLE); + set_no_disk_inquiry_result(buf, (size_t)cmdrsp->scsi.bufflen, + scsidev->lun == 0); if (scsi_sg_count(scsicmd) == 0) { memcpy(scsi_sglist(scsicmd), buf, -- cgit v0.10.2 From 80bee2617ac0c39925023b78a883f154c2b1f86b Mon Sep 17 00:00:00 2001 From: David Binder Date: Fri, 6 May 2016 13:11:16 -0400 Subject: staging: unisys: visorchannel: correct variable misspelling Fixes the spelling of a global variable passed into a kernel macro. Signed-off-by: David Binder Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 6d9bbae..7522559 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -2348,7 +2348,7 @@ module_param_named(major, visorchipset_major, int, S_IRUGO); MODULE_PARM_DESC(visorchipset_major, "major device number to use for the device node"); module_param_named(visorbusregwait, visorchipset_visorbusregwait, int, S_IRUGO); -MODULE_PARM_DESC(visorchipset_visorbusreqwait, +MODULE_PARM_DESC(visorchipset_visorbusregwait, "1 to have the module wait for the visor bus to register"); module_init(init_unisys); -- cgit v0.10.2 From 456743c357895678431c91c7305d8abaabc92781 Mon Sep 17 00:00:00 2001 From: Erik Arfvidson Date: Fri, 6 May 2016 13:11:17 -0400 Subject: staging: unisys: remove unused struct members The following struct members were never used: putfile_active_buffer::pnext putfile_request::file_request_number putfile_request::data_sequence_number Signed-off-by: Erik Arfvidson Signed-off-by: David Kershner Reviewed-by: Luis de Bethencourt Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c index 7522559..f0bbf52 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/staging/unisys/visorbus/visorchipset.c @@ -151,8 +151,6 @@ struct putfile_active_buffer { /* a payload from a controlvm message, containing a file data buffer */ struct parser_context *parser_ctx; /* points within data area of parser_ctx to next byte of data */ - u8 *pnext; - /* # bytes left from to the end of this data buffer */ size_t bytes_remaining; }; @@ -166,14 +164,10 @@ struct putfile_request { /* header from original TransmitFile request */ struct controlvm_message_header controlvm_header; - u64 file_request_number; /* from original TransmitFile request */ /* link to next struct putfile_request */ struct list_head next_putfile_request; - /* most-recent sequence number supplied via a controlvm message */ - u64 data_sequence_number; - /* head of putfile_buffer_entry list, which describes the data to be * supplied as putfile data; * - this list is added to when controlvm messages come in that supply -- cgit v0.10.2 From 8a1cca31abd4d6470b8fe6f1b2a6fc2f8868ca8b Mon Sep 17 00:00:00 2001 From: Erik Arfvidson Date: Fri, 6 May 2016 13:11:18 -0400 Subject: staging: unisys: fix format string %Lx to %llx for u64 this patch fixes the following sonarqube issue. %Lx in format string (no. 1) requires 'unsigned long long' but the argument type is 'unsigned long long' Signed-off-by: Erik Arfvidson Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c index 6216f4b..3a147db 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/staging/unisys/visorbus/visorbus_main.c @@ -252,7 +252,7 @@ static ssize_t physaddr_show(struct device *dev, struct device_attribute *attr, if (!vdev->visorchannel) return 0; - return snprintf(buf, PAGE_SIZE, "0x%Lx\n", + return snprintf(buf, PAGE_SIZE, "0x%llx\n", visorchannel_get_physaddr(vdev->visorchannel)); } @@ -274,7 +274,7 @@ static ssize_t clientpartition_show(struct device *dev, if (!vdev->visorchannel) return 0; - return snprintf(buf, PAGE_SIZE, "0x%Lx\n", + return snprintf(buf, PAGE_SIZE, "0x%llx\n", visorchannel_get_clientpartition(vdev->visorchannel)); } @@ -366,7 +366,7 @@ static ssize_t partition_handle_show(struct device *dev, struct visor_device *vdev = to_visor_device(dev); u64 handle = visorchannel_get_clientpartition(vdev->visorchannel); - return snprintf(buf, PAGE_SIZE, "0x%Lx\n", handle); + return snprintf(buf, PAGE_SIZE, "0x%llx\n", handle); } static ssize_t partition_guid_show(struct device *dev, @@ -391,7 +391,7 @@ static ssize_t channel_addr_show(struct device *dev, struct visor_device *vdev = to_visor_device(dev); u64 addr = visorchannel_get_physaddr(vdev->visorchannel); - return snprintf(buf, PAGE_SIZE, "0x%Lx\n", addr); + return snprintf(buf, PAGE_SIZE, "0x%llx\n", addr); } static ssize_t channel_bytes_show(struct device *dev, @@ -400,7 +400,7 @@ static ssize_t channel_bytes_show(struct device *dev, struct visor_device *vdev = to_visor_device(dev); u64 nbytes = visorchannel_get_nbytes(vdev->visorchannel); - return snprintf(buf, PAGE_SIZE, "0x%Lx\n", nbytes); + return snprintf(buf, PAGE_SIZE, "0x%llx\n", nbytes); } static ssize_t channel_id_show(struct device *dev, -- cgit v0.10.2 From 77c9a4ae81940fb97a8ec720b64b94a999698963 Mon Sep 17 00:00:00 2001 From: Erik Arfvidson Date: Fri, 6 May 2016 13:11:19 -0400 Subject: staging: unisys: visornic: comment restructuring and removing bad diction The purpose of this patch is to clean up commenting and making the code with comments be pleasant to eyes. Also make commenting be consistent throughout the file. Signed-off-by: Erik Arfvidson Signed-off-by: David Kershner Reviewed-by: Luis de Bethencourt Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c index de983d2..2c43396 100644 --- a/drivers/staging/unisys/visornic/visornic_main.c +++ b/drivers/staging/unisys/visornic/visornic_main.c @@ -109,51 +109,46 @@ struct chanstat { }; struct visornic_devdata { - unsigned short enabled; /* 0 disabled 1 enabled to receive */ - unsigned short enab_dis_acked; /* NET_RCV_ENABLE/DISABLE acked by - * IOPART - */ + /* 0 disabled 1 enabled to receive */ + unsigned short enabled; + /* NET_RCV_ENABLE/DISABLE acked by IOPART */ + unsigned short enab_dis_acked; + struct visor_device *dev; struct net_device *netdev; struct net_device_stats net_stats; atomic_t interrupt_rcvd; wait_queue_head_t rsp_queue; struct sk_buff **rcvbuf; - u64 incarnation_id; /* lets IOPART know about re-birth */ - unsigned short old_flags; /* flags as they were prior to - * set_multicast_list - */ - atomic_t usage; /* count of users */ - int num_rcv_bufs; /* indicates how many rcv buffers - * the vnic will post - */ + /* incarnation_id lets IOPART know about re-birth */ + u64 incarnation_id; + /* flags as they were prior to set_multicast_list */ + unsigned short old_flags; + atomic_t usage; /* count of users */ + + /* number of rcv buffers the vnic will post */ + int num_rcv_bufs; int num_rcv_bufs_could_not_alloc; atomic_t num_rcvbuf_in_iovm; unsigned long alloc_failed_in_if_needed_cnt; unsigned long alloc_failed_in_repost_rtn_cnt; - unsigned long max_outstanding_net_xmits; /* absolute max number of - * outstanding xmits - should - * never hit this - */ - unsigned long upper_threshold_net_xmits; /* high water mark for - * calling netif_stop_queue() - */ - unsigned long lower_threshold_net_xmits; /* high water mark for calling - * netif_wake_queue() - */ - struct sk_buff_head xmitbufhead; /* xmitbufhead is the head of the - * xmit buffer list that have been - * sent to the IOPART end - */ + + /* absolute max number of outstanding xmits - should never hit this */ + unsigned long max_outstanding_net_xmits; + /* high water mark for calling netif_stop_queue() */ + unsigned long upper_threshold_net_xmits; + /* high water mark for calling netif_wake_queue() */ + unsigned long lower_threshold_net_xmits; + /* xmitbufhead - head of the xmit buffer list sent to the IOPART end */ + struct sk_buff_head xmitbufhead; + visorbus_state_complete_func server_down_complete_func; struct work_struct timeout_reset; - struct uiscmdrsp *cmdrsp_rcv; /* cmdrsp_rcv is used for - * posting/unposting rcv buffers - */ - struct uiscmdrsp *xmit_cmdrsp; /* used to issue NET_XMIT - there is - * never more that one xmit in - * progress at a time - */ + /* cmdrsp_rcv is used for posting/unposting rcv buffers */ + struct uiscmdrsp *cmdrsp_rcv; + /* xmit_cmdrsp - issues NET_XMIT - only one active xmit at a time */ + struct uiscmdrsp *xmit_cmdrsp; + bool server_down; /* IOPART is down */ bool server_change_state; /* Processing SERVER_CHANGESTATE msg */ bool going_away; /* device is being torn down */ @@ -173,18 +168,10 @@ struct visornic_devdata { unsigned long n_rcv1; /* # rcvs of 1 buffers */ unsigned long n_rcv2; /* # rcvs of 2 buffers */ unsigned long n_rcvx; /* # rcvs of >2 buffers */ - unsigned long found_repost_rcvbuf_cnt; /* # times we called - * repost_rcvbuf_cnt - */ - unsigned long repost_found_skb_cnt; /* # times found the skb */ - unsigned long n_repost_deficit; /* # times we couldn't find - * all of the rcv buffers - */ - unsigned long bad_rcv_buf; /* # times we negleted to - * free the rcv skb because - * we didn't know where it - * came from - */ + unsigned long found_repost_rcvbuf_cnt; /* # repost_rcvbuf_cnt */ + unsigned long repost_found_skb_cnt; /* # of found the skb */ + unsigned long n_repost_deficit; /* # of lost rcv buffers */ + unsigned long bad_rcv_buf; /* # of unknown rcv skb not freed */ unsigned long n_rcv_packets_not_accepted;/* # bogs rcv packets */ int queuefullmsg_logged; @@ -219,8 +206,7 @@ visor_copy_fragsinfo_from_skb(struct sk_buff *skb, unsigned int firstfraglen, numfrags = skb_shinfo(skb)->nr_frags; - /* - * Compute the number of fragments this skb has, and if its more than + /* Compute the number of fragments this skb has, and if its more than * frag array can hold, linearize the skb */ total_count = numfrags + (firstfraglen / PI_PAGE_SIZE); @@ -264,8 +250,7 @@ visor_copy_fragsinfo_from_skb(struct sk_buff *skb, unsigned int firstfraglen, page_offset, skb_shinfo(skb)->frags[ii]. size, count, frags_max, frags); - /* - * add_physinfo_entries only returns + /* add_physinfo_entries only returns * zero if the frags array is out of room * That should never happen because we * fail above, if count+numfrags > frags_max. @@ -297,8 +282,7 @@ static ssize_t enable_ints_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { - /* - * Don't want to break ABI here by having a debugfs + /* Don't want to break ABI here by having a debugfs * file that no longer exists or is writable, so * lets just make this a vestigual function */ @@ -306,8 +290,7 @@ static ssize_t enable_ints_write(struct file *file, } /** - * visornic_serverdown_complete - IOPART went down, need to pause - * device + * visornic_serverdown_complete - IOPART went down, pause device * @work: Work queue it was scheduled on * * The IO partition has gone down and we need to do some cleanup @@ -342,7 +325,7 @@ visornic_serverdown_complete(struct visornic_devdata *devdata) } /** - * visornic_serverdown - Command has notified us that IOPARt is down + * visornic_serverdown - Command has notified us that IOPART is down * @devdata: device that is being managed by IOPART * * Schedule the work needed to handle the server down request. Make @@ -403,20 +386,19 @@ alloc_rcv_buf(struct net_device *netdev) /* NOTE: the first fragment in each rcv buffer is pointed to by * rcvskb->data. For now all rcv buffers will be RCVPOST_BUF_SIZE - * in length, so the firstfrag is large enough to hold 1514. + * in length, so the first frag is large enough to hold 1514. */ skb = alloc_skb(RCVPOST_BUF_SIZE, GFP_ATOMIC); if (!skb) return NULL; skb->dev = netdev; - skb->len = RCVPOST_BUF_SIZE; /* current value of mtu doesn't come into play here; large * packets will just end up using multiple rcv buffers all of - * same size + * same size. */ - skb->data_len = 0; /* dev_alloc_skb already zeroes it out - * for clarification. - */ + skb->len = RCVPOST_BUF_SIZE; + /* alloc_skb already zeroes it out for clarification. */ + skb->data_len = 0; return skb; } @@ -880,8 +862,7 @@ visornic_xmit(struct sk_buff *skb, struct net_device *netdev) if (vnic_hit_high_watermark(devdata, devdata->max_outstanding_net_xmits)) { - /* too many NET_XMITs queued over to IOVM - need to wait - */ + /* extra NET_XMITs queued over to IOVM - need to wait */ devdata->chstat.reject_count++; if (!devdata->queuefullmsg_logged && ((devdata->chstat.reject_count & 0x3ff) == 1)) @@ -958,16 +939,12 @@ visornic_xmit(struct sk_buff *skb, struct net_device *netdev) devdata->net_stats.tx_bytes += skb->len; devdata->chstat.sent_xmit++; - /* check to see if we have hit the high watermark for - * netif_stop_queue() - */ + /* check if we have hit the high watermark for netif_stop_queue() */ if (vnic_hit_high_watermark(devdata, devdata->upper_threshold_net_xmits)) { - /* too many NET_XMITs queued over to IOVM - need to wait */ - netif_stop_queue(netdev); /* calling stop queue - call - * netif_wake_queue() after lower - * threshold - */ + /* extra NET_XMITs queued over to IOVM - need to wait */ + /* stop queue - call netif_wake_queue() after lower threshold */ + netif_stop_queue(netdev); dev_dbg(&netdev->dev, "%s busy - invoking iovm flow control\n", __func__); @@ -1320,16 +1297,13 @@ visornic_rx(struct uiscmdrsp *cmdrsp) break; } } + /* accept pkt, dest matches a multicast addr */ if (found_mc) - break; /* accept packet, dest - * matches a multicast - * address - */ + break; } + /* accept packet, h_dest must match vnic mac address */ } else if (skb->pkt_type == PACKET_HOST) { - break; /* accept packet, h_dest must match vnic - * mac address - */ + break; } else if (skb->pkt_type == PACKET_OTHERHOST) { /* something is not right */ dev_err(&devdata->netdev->dev, @@ -1417,14 +1391,10 @@ static ssize_t info_debugfs_read(struct file *file, char __user *buf, if (!vbuf) return -ENOMEM; - /* for each vnic channel - * dump out channel specific data - */ + /* for each vnic channel dump out channel specific data */ rcu_read_lock(); for_each_netdev_rcu(current->nsproxy->net_ns, dev) { - /* - * Only consider netdevs that are visornic, and are open - */ + /* Only consider netdevs that are visornic, and are open */ if ((dev->netdev_ops != &visornic_dev_ops) || (!netif_queue_stopped(dev))) continue; @@ -1651,9 +1621,8 @@ service_resp_queue(struct uiscmdrsp *cmdrsp, struct visornic_devdata *devdata, /* ASSERT netdev == vnicinfo->netdev; */ if ((netdev == devdata->netdev) && netif_queue_stopped(netdev)) { - /* check to see if we have crossed - * the lower watermark for - * netif_wake_queue() + /* check if we have crossed the lower watermark + * for netif_wake_queue() */ if (vnic_hit_low_watermark (devdata, @@ -1721,10 +1690,7 @@ static int visornic_poll(struct napi_struct *napi, int budget) send_rcv_posts_if_needed(devdata); service_resp_queue(devdata->cmdrsp, devdata, &rx_count, budget); - /* - * If there aren't any more packets to receive - * stop the poll - */ + /* If there aren't any more packets to receive stop the poll */ if (rx_count < budget) napi_complete(napi); @@ -1876,8 +1842,7 @@ static int visornic_probe(struct visor_device *dev) setup_timer(&devdata->irq_poll_timer, poll_for_irq, (unsigned long)devdata); - /* - * Note: This time has to start running before the while + /* Note: This time has to start running before the while * loop below because the napi routine is responsible for * setting enab_dis_acked */ @@ -1906,8 +1871,7 @@ static int visornic_probe(struct visor_device *dev) /* Let's start our threads to get responses */ netif_napi_add(netdev, &devdata->napi, visornic_poll, NAPI_WEIGHT); - /* - * Note: Interupts have to be enable before the while + /* Note: Interupts have to be enable before the while * loop below because the napi routine is responsible for * setting enab_dis_acked */ -- cgit v0.10.2 From 0fab0f4fcbc08763158529b5ff124c596aef6bf9 Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Fri, 6 May 2016 13:11:20 -0400 Subject: staging: unisys: visorhba: fail gracefully for thread creation failures Previously, if visorhba ever failed to create its thread, it would have subsequently attempted to do a kthread_stop() on an invalid task_struct pointer. This was fixed via the new visor_thread_stop() function, which validates the task_struct pointer before doing the kthread_stop(). Also, the other thread-related fields in visor_thread_info (has_stopped and id) were not being used, so visor_thead_info was just removed. We also now spit out an error message if thread creation fails. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c b/drivers/staging/unisys/visorhba/visorhba_main.c index 6f53f3d..176bcc3 100644 --- a/drivers/staging/unisys/visorhba/visorhba_main.c +++ b/drivers/staging/unisys/visorhba/visorhba_main.c @@ -85,12 +85,6 @@ static struct visor_driver visorhba_driver = { MODULE_DEVICE_TABLE(visorbus, visorhba_channel_types); MODULE_ALIAS("visorbus:" SPAR_VHBA_CHANNEL_PROTOCOL_UUID_STR); -struct visor_thread_info { - struct task_struct *task; - struct completion has_stopped; - int id; -}; - struct visordisk_info { u32 valid; u32 channel, id, lun; /* Disk Path */ @@ -137,7 +131,7 @@ struct visorhba_devdata { struct visordisk_info head; unsigned int max_buff_len; int devnum; - struct visor_thread_info threadinfo; + struct task_struct *thread; int thread_wait_ms; }; @@ -154,28 +148,36 @@ static struct visorhba_devices_open visorhbas_open[VISORHBA_OPEN_MAX]; (iter->lun == match->lun)) /** * visor_thread_start - starts a thread for the device - * @thrinfo: The thread to start * @threadfn: Function the thread starts * @thrcontext: Context to pass to the thread, i.e. devdata * @name: string describing name of thread * * Starts a thread for the device. * - * Return 0 on success; + * Return the task_struct * denoting the thread on success, + * or NULL on failure */ -static int visor_thread_start(struct visor_thread_info *thrinfo, - int (*threadfn)(void *), - void *thrcontext, char *name) +static struct task_struct *visor_thread_start +(int (*threadfn)(void *), void *thrcontext, char *name) { - /* used to stop the thread */ - init_completion(&thrinfo->has_stopped); - thrinfo->task = kthread_run(threadfn, thrcontext, "%s", name); - if (IS_ERR(thrinfo->task)) { - thrinfo->id = 0; - return PTR_ERR(thrinfo->task); + struct task_struct *task; + + task = kthread_run(threadfn, thrcontext, "%s", name); + if (IS_ERR(task)) { + pr_err("visorbus failed to start thread\n"); + return NULL; } - thrinfo->id = thrinfo->task->pid; - return 0; + return task; +} + +/** + * visor_thread_stop - stops the thread if it is running + */ +static void visor_thread_stop(struct task_struct *task) +{ + if (!task) + return; /* no thread running */ + kthread_stop(task); } /** @@ -683,7 +685,7 @@ static void visorhba_serverdown_complete(struct visorhba_devdata *devdata) /* Stop using the IOVM response queue (queue should be drained * by the end) */ - kthread_stop(devdata->threadinfo.task); + visor_thread_stop(devdata->thread); /* Fail commands that weren't completed */ spin_lock_irqsave(&devdata->privlock, flags); @@ -1082,8 +1084,8 @@ static int visorhba_resume(struct visor_device *dev, if (devdata->serverdown && !devdata->serverchangingstate) devdata->serverchangingstate = true; - visor_thread_start(&devdata->threadinfo, process_incoming_rsps, - devdata, "vhba_incming"); + devdata->thread = visor_thread_start(process_incoming_rsps, devdata, + "vhba_incming"); devdata->serverdown = false; devdata->serverchangingstate = false; @@ -1159,8 +1161,8 @@ static int visorhba_probe(struct visor_device *dev) goto err_scsi_remove_host; devdata->thread_wait_ms = 2; - visor_thread_start(&devdata->threadinfo, process_incoming_rsps, - devdata, "vhba_incoming"); + devdata->thread = visor_thread_start(process_incoming_rsps, devdata, + "vhba_incoming"); scsi_scan_host(scsihost); @@ -1190,7 +1192,7 @@ static void visorhba_remove(struct visor_device *dev) return; scsihost = devdata->scsihost; - kthread_stop(devdata->threadinfo.task); + visor_thread_stop(devdata->thread); scsi_remove_host(scsihost); scsi_host_put(scsihost); -- cgit v0.10.2 From 73ba8afe33e22b4bae26098add458bed3e666bc2 Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Fri, 6 May 2016 13:11:21 -0400 Subject: staging: unisys: visorinput: handle_locking_key() simplifications By directly returning for the error-case, a test was eliminated. Also, the old_state variable was removed as it was not necessary, and some redundant parens were removed. Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorinput/visorinput.c b/drivers/staging/unisys/visorinput/visorinput.c index dc94261..12a3570 100644 --- a/drivers/staging/unisys/visorinput/visorinput.c +++ b/drivers/staging/unisys/visorinput/visorinput.c @@ -467,18 +467,14 @@ handle_locking_key(struct input_dev *visorinput_dev, break; default: led = -1; - break; + return; } - if (led >= 0) { - int old_state = (test_bit(led, visorinput_dev->led)); - - if (old_state != desired_state) { - input_report_key(visorinput_dev, keycode, 1); - input_sync(visorinput_dev); - input_report_key(visorinput_dev, keycode, 0); - input_sync(visorinput_dev); - __change_bit(led, visorinput_dev->led); - } + if (test_bit(led, visorinput_dev->led) != desired_state) { + input_report_key(visorinput_dev, keycode, 1); + input_sync(visorinput_dev); + input_report_key(visorinput_dev, keycode, 0); + input_sync(visorinput_dev); + __change_bit(led, visorinput_dev->led); } } -- cgit v0.10.2 From 825157aedabc2b4c0cb3152012b00ea0bdcd6fac Mon Sep 17 00:00:00 2001 From: Tim Sell Date: Fri, 6 May 2016 13:11:22 -0400 Subject: staging: unisys: visorhba: main path needs to flow down the left margin In del_scsipending_ent(), the error-path and main-path were switched, so the error-path is handled like 'if (err) return;', and the main-path flows down the left margin. This also allowed us to remove the initialization of "sent". Signed-off-by: Tim Sell Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c b/drivers/staging/unisys/visorhba/visorhba_main.c index 176bcc3..7a2c489 100644 --- a/drivers/staging/unisys/visorhba/visorhba_main.c +++ b/drivers/staging/unisys/visorhba/visorhba_main.c @@ -235,16 +235,17 @@ static void *del_scsipending_ent(struct visorhba_devdata *devdata, int del) { unsigned long flags; - void *sent = NULL; + void *sent; - if (del < MAX_PENDING_REQUESTS) { - spin_lock_irqsave(&devdata->privlock, flags); - sent = devdata->pending[del].sent; + if (del >= MAX_PENDING_REQUESTS) + return NULL; - devdata->pending[del].cmdtype = 0; - devdata->pending[del].sent = NULL; - spin_unlock_irqrestore(&devdata->privlock, flags); - } + spin_lock_irqsave(&devdata->privlock, flags); + sent = devdata->pending[del].sent; + + devdata->pending[del].cmdtype = 0; + devdata->pending[del].sent = NULL; + spin_unlock_irqrestore(&devdata->privlock, flags); return sent; } -- cgit v0.10.2 From 3b5e11d7f566495f7ff3f4178b814a59b4ea84a5 Mon Sep 17 00:00:00 2001 From: David Binder Date: Fri, 6 May 2016 13:11:23 -0400 Subject: staging: unisys: visorhba: switch success handling to error handling Addresses code audit feeback to switch from success handling to error handling in visorhba_main.c/process_disk_notify(). Signed-off-by: David Binder Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c b/drivers/staging/unisys/visorhba/visorhba_main.c index 7a2c489..6a4570d 100644 --- a/drivers/staging/unisys/visorhba/visorhba_main.c +++ b/drivers/staging/unisys/visorhba/visorhba_main.c @@ -950,14 +950,15 @@ static void process_disk_notify(struct Scsi_Host *shost, struct diskaddremove *dar; dar = kzalloc(sizeof(*dar), GFP_ATOMIC); - if (dar) { - dar->add = cmdrsp->disknotify.add; - dar->shost = shost; - dar->channel = cmdrsp->disknotify.channel; - dar->id = cmdrsp->disknotify.id; - dar->lun = cmdrsp->disknotify.lun; - queue_disk_add_remove(dar); - } + if (!dar) + return; + + dar->add = cmdrsp->disknotify.add; + dar->shost = shost; + dar->channel = cmdrsp->disknotify.channel; + dar->id = cmdrsp->disknotify.id; + dar->lun = cmdrsp->disknotify.lun; + queue_disk_add_remove(dar); } /** -- cgit v0.10.2 From 03759f8cd6e88517980b11c96f377e51d765d403 Mon Sep 17 00:00:00 2001 From: Erik Arfvidson Date: Fri, 6 May 2016 13:11:24 -0400 Subject: staging: unisys: rename misleading var ii with frag This patch removes misleading variable name with a more appropriate name. Since ii is keeping track of fragments inside a for loop I renamed it frag. ii->frag Signed-off-by: Erik Arfvidson Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c index 2c43396..fd7c9a6 100644 --- a/drivers/staging/unisys/visornic/visornic_main.c +++ b/drivers/staging/unisys/visornic/visornic_main.c @@ -201,7 +201,7 @@ visor_copy_fragsinfo_from_skb(struct sk_buff *skb, unsigned int firstfraglen, unsigned int frags_max, struct phys_info frags[]) { - unsigned int count = 0, ii, size, offset = 0, numfrags; + unsigned int count = 0, frag, size, offset = 0, numfrags; unsigned int total_count; numfrags = skb_shinfo(skb)->nr_frags; @@ -243,12 +243,12 @@ visor_copy_fragsinfo_from_skb(struct sk_buff *skb, unsigned int firstfraglen, if ((count + numfrags) > frags_max) return -EINVAL; - for (ii = 0; ii < numfrags; ii++) { + for (frag = 0; frag < numfrags; frag++) { count = add_physinfo_entries(page_to_pfn( - skb_frag_page(&skb_shinfo(skb)->frags[ii])), - skb_shinfo(skb)->frags[ii]. + skb_frag_page(&skb_shinfo(skb)->frags[frag])), + skb_shinfo(skb)->frags[frag]. page_offset, - skb_shinfo(skb)->frags[ii]. + skb_shinfo(skb)->frags[frag]. size, count, frags_max, frags); /* add_physinfo_entries only returns * zero if the frags array is out of room -- cgit v0.10.2 From 3cbe6a1c1acd9777f3d6a6a0409c0fcfbb7f832a Mon Sep 17 00:00:00 2001 From: Bruno Carvalho Date: Sat, 7 May 2016 22:39:41 -0400 Subject: staging/gdm724x: Fix avoid CamelCase Fix checkpatch issues: "CHECK: Avoid CamelCase" Signed-off-by: Bruno Carvalho Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/gdm724x/gdm_usb.c b/drivers/staging/gdm724x/gdm_usb.c index 9db9b90..d650d77 100644 --- a/drivers/staging/gdm724x/gdm_usb.c +++ b/drivers/staging/gdm724x/gdm_usb.c @@ -708,7 +708,7 @@ static void do_tx(struct work_struct *work) #define SDU_PARAM_LEN 12 static int gdm_usb_sdu_send(void *priv_dev, void *data, int len, - unsigned int dftEpsId, unsigned int epsId, + unsigned int dft_eps_ID, unsigned int eps_ID, void (*cb)(void *data), void *cb_data, int dev_idx, int nic_type) { @@ -746,8 +746,8 @@ static int gdm_usb_sdu_send(void *priv_dev, void *data, int len, } sdu->len = gdm_cpu_to_dev16(&udev->gdm_ed, send_len); - sdu->dftEpsId = gdm_cpu_to_dev32(&udev->gdm_ed, dftEpsId); - sdu->bearer_ID = gdm_cpu_to_dev32(&udev->gdm_ed, epsId); + sdu->dft_eps_ID = gdm_cpu_to_dev32(&udev->gdm_ed, dft_eps_ID); + sdu->bearer_ID = gdm_cpu_to_dev32(&udev->gdm_ed, eps_ID); sdu->nic_type = gdm_cpu_to_dev32(&udev->gdm_ed, nic_type); t_sdu->len = send_len + HCI_HEADER_SIZE; diff --git a/drivers/staging/gdm724x/hci_packet.h b/drivers/staging/gdm724x/hci_packet.h index 7fba8a6..dbc4446 100644 --- a/drivers/staging/gdm724x/hci_packet.h +++ b/drivers/staging/gdm724x/hci_packet.h @@ -58,7 +58,7 @@ struct sdu_header { struct sdu { u16 cmd_evt; u16 len; - u32 dftEpsId; + u32 dft_eps_ID; u32 bearer_ID; u32 nic_type; u8 data[0]; -- cgit v0.10.2 From 47678e37927019265ab9c9a2103a0ef76b2584a6 Mon Sep 17 00:00:00 2001 From: Bruno Carvalho Date: Sat, 7 May 2016 22:15:53 -0400 Subject: staging/gdm724x: fix "alignment should match open parenthesis" issues Fix checkpatch issues: "CHECK: Alignment should match open parenthesis" Signed-off-by: Bruno Carvalho Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/gdm724x/gdm_mux.c b/drivers/staging/gdm724x/gdm_mux.c index 6bedd66..4009691 100644 --- a/drivers/staging/gdm724x/gdm_mux.c +++ b/drivers/staging/gdm724x/gdm_mux.c @@ -278,8 +278,9 @@ static void gdm_mux_rcv_complete(struct urb *urb) } } -static int gdm_mux_recv(void *priv_dev, int (*cb)(void *data, int len, - int tty_index, struct tty_dev *tty_dev, int complete)) +static int gdm_mux_recv(void *priv_dev, + int (*cb)(void *data, int len, int tty_index, + struct tty_dev *tty_dev, int complete)) { struct mux_dev *mux_dev = priv_dev; struct usb_device *usbdev = mux_dev->usbdev; diff --git a/drivers/staging/gdm724x/netlink_k.c b/drivers/staging/gdm724x/netlink_k.c index 9d83477..a0232e8 100644 --- a/drivers/staging/gdm724x/netlink_k.c +++ b/drivers/staging/gdm724x/netlink_k.c @@ -88,7 +88,8 @@ static void netlink_rcv(struct sk_buff *skb) } struct sock *netlink_init(int unit, - void (*cb)(struct net_device *dev, u16 type, void *msg, int len)) + void (*cb)(struct net_device *dev, u16 type, + void *msg, int len)) { struct sock *sock; struct netlink_kernel_cfg cfg = { -- cgit v0.10.2 From ffc83a79b44e02995ab5e93af07e26f6c7243c53 Mon Sep 17 00:00:00 2001 From: Shyam Saini Date: Sun, 8 May 2016 07:30:58 +0530 Subject: Staging: emxx_udc: emxx_udc: fixed coding style issue fixed checkpatch.pl warning about 'Prefer 'unsigned int' to bare use of 'unsigned' Signed-off-by: Shyam Saini Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c index 58e189b7..3bd9175 100644 --- a/drivers/staging/emxx_udc/emxx_udc.c +++ b/drivers/staging/emxx_udc/emxx_udc.c @@ -3051,7 +3051,7 @@ static int nbu2ss_gad_vbus_session(struct usb_gadget *pgadget, int is_active) } /*-------------------------------------------------------------------------*/ -static int nbu2ss_gad_vbus_draw(struct usb_gadget *pgadget, unsigned mA) +static int nbu2ss_gad_vbus_draw(struct usb_gadget *pgadget, unsigned int mA) { struct nbu2ss_udc *udc; unsigned long flags; @@ -3101,7 +3101,7 @@ static int nbu2ss_gad_pullup(struct usb_gadget *pgadget, int is_on) /*-------------------------------------------------------------------------*/ static int nbu2ss_gad_ioctl( struct usb_gadget *pgadget, - unsigned code, + unsigned int code, unsigned long param) { return 0; -- cgit v0.10.2