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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-08-17 23:20:45 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-08-17 23:20:45 (GMT) |
commit | 4e7fca0d0afdfa6be0f429f9a2649b3cf92197e7 (patch) | |
tree | 91ef397b12a6a8ea9e89aa2b162709ddea2a6127 | |
parent | e9ab22d292aa168ed8d4cb45353a626a3d6f1522 (diff) | |
parent | f9114d357858c1429dcde022706db7443918f49f (diff) | |
download | linux-4e7fca0d0afdfa6be0f429f9a2649b3cf92197e7.tar.xz |
Merge branch 'for-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
"Three minor device-specific fixes and revert of NCQ autosense added
during this -rc1.
It turned out that NCQ autosense as currently implemented interferes
with the usual error handling behavior. It will be revisited in the
near future"
* 'for-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ata: ahci_brcmstb: Fix misuse of IS_ENABLED
sata_sx4: Check return code from pdc20621_i2c_read()
Revert "libata: Implement NCQ autosense"
Revert "libata: Implement support for sense data reporting"
Revert "libata-eh: Set 'information' field for autosense"
ata: ahci_brcmstb: Fix warnings with CONFIG_PM_SLEEP=n
-rw-r--r-- | drivers/ata/ahci_brcmstb.c | 6 | ||||
-rw-r--r-- | drivers/ata/libata-core.c | 24 | ||||
-rw-r--r-- | drivers/ata/libata-eh.c | 105 | ||||
-rw-r--r-- | drivers/ata/libata-scsi.c | 21 | ||||
-rw-r--r-- | drivers/ata/libata.h | 6 | ||||
-rw-r--r-- | drivers/ata/sata_sx4.c | 16 | ||||
-rw-r--r-- | drivers/scsi/scsi_error.c | 31 | ||||
-rw-r--r-- | include/linux/ata.h | 18 | ||||
-rw-r--r-- | include/scsi/scsi_eh.h | 1 |
9 files changed, 24 insertions, 204 deletions
diff --git a/drivers/ata/ahci_brcmstb.c b/drivers/ata/ahci_brcmstb.c index ce1e3a8..14b7305 100644 --- a/drivers/ata/ahci_brcmstb.c +++ b/drivers/ata/ahci_brcmstb.c @@ -92,7 +92,7 @@ static inline u32 brcm_sata_readreg(void __iomem *addr) * Other architectures (e.g., ARM) either do not support big endian, or * else leave I/O in little endian mode. */ - if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(__BIG_ENDIAN)) + if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) return __raw_readl(addr); else return readl_relaxed(addr); @@ -101,7 +101,7 @@ static inline u32 brcm_sata_readreg(void __iomem *addr) static inline void brcm_sata_writereg(u32 val, void __iomem *addr) { /* See brcm_sata_readreg() comments */ - if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(__BIG_ENDIAN)) + if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) __raw_writel(val, addr); else writel_relaxed(val, addr); @@ -209,6 +209,7 @@ static void brcm_sata_init(struct brcm_ahci_priv *priv) priv->top_ctrl + SATA_TOP_CTRL_BUS_CTRL); } +#ifdef CONFIG_PM_SLEEP static int brcm_ahci_suspend(struct device *dev) { struct ata_host *host = dev_get_drvdata(dev); @@ -231,6 +232,7 @@ static int brcm_ahci_resume(struct device *dev) brcm_sata_phys_enable(priv); return ahci_platform_resume(dev); } +#endif static struct scsi_host_template ahci_platform_sht = { AHCI_SHT(DRV_NAME), diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index db5d9f7..19bcb80 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -694,11 +694,11 @@ static int ata_rwcmd_protocol(struct ata_taskfile *tf, struct ata_device *dev) * RETURNS: * Block address read from @tf. */ -u64 ata_tf_read_block(const struct ata_taskfile *tf, struct ata_device *dev) +u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev) { u64 block = 0; - if (!dev || tf->flags & ATA_TFLAG_LBA) { + if (tf->flags & ATA_TFLAG_LBA) { if (tf->flags & ATA_TFLAG_LBA48) { block |= (u64)tf->hob_lbah << 40; block |= (u64)tf->hob_lbam << 32; @@ -2147,24 +2147,6 @@ static int ata_dev_config_ncq(struct ata_device *dev, return 0; } -static void ata_dev_config_sense_reporting(struct ata_device *dev) -{ - unsigned int err_mask; - - if (!ata_id_has_sense_reporting(dev->id)) - return; - - if (ata_id_sense_reporting_enabled(dev->id)) - return; - - err_mask = ata_dev_set_feature(dev, SETFEATURE_SENSE_DATA, 0x1); - if (err_mask) { - ata_dev_dbg(dev, - "failed to enable Sense Data Reporting, Emask 0x%x\n", - err_mask); - } -} - /** * ata_dev_configure - Configure the specified ATA/ATAPI device * @dev: Target device to configure @@ -2387,7 +2369,7 @@ int ata_dev_configure(struct ata_device *dev) dev->devslp_timing[i] = sata_setting[j]; } } - ata_dev_config_sense_reporting(dev); + dev->cdb_len = 16; } diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 7465031..cb0508a 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -1592,8 +1592,6 @@ static int ata_eh_read_log_10h(struct ata_device *dev, tf->hob_lbah = buf[10]; tf->nsect = buf[12]; tf->hob_nsect = buf[13]; - if (ata_id_has_ncq_autosense(dev->id)) - tf->auxiliary = buf[14] << 16 | buf[15] << 8 | buf[16]; return 0; } @@ -1630,70 +1628,6 @@ unsigned int atapi_eh_tur(struct ata_device *dev, u8 *r_sense_key) } /** - * ata_eh_request_sense - perform REQUEST_SENSE_DATA_EXT - * @dev: device to perform REQUEST_SENSE_SENSE_DATA_EXT to - * @sense_buf: result sense data buffer (SCSI_SENSE_BUFFERSIZE bytes long) - * @dfl_sense_key: default sense key to use - * - * Perform REQUEST_SENSE_DATA_EXT after the device reported CHECK - * SENSE. This function is EH helper. - * - * LOCKING: - * Kernel thread context (may sleep). - * - * RETURNS: - * encoded sense data on success, 0 on failure or if sense data - * is not available. - */ -static u32 ata_eh_request_sense(struct ata_queued_cmd *qc, - struct scsi_cmnd *cmd) -{ - struct ata_device *dev = qc->dev; - struct ata_taskfile tf; - unsigned int err_mask; - - if (!cmd) - return 0; - - DPRINTK("ATA request sense\n"); - ata_dev_warn(dev, "request sense\n"); - if (!ata_id_sense_reporting_enabled(dev->id)) { - ata_dev_warn(qc->dev, "sense data reporting disabled\n"); - return 0; - } - ata_tf_init(dev, &tf); - - tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; - tf.flags |= ATA_TFLAG_LBA | ATA_TFLAG_LBA48; - tf.command = ATA_CMD_REQ_SENSE_DATA; - tf.protocol = ATA_PROT_NODATA; - - err_mask = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0, 0); - /* - * ACS-4 states: - * The device may set the SENSE DATA AVAILABLE bit to one in the - * STATUS field and clear the ERROR bit to zero in the STATUS field - * to indicate that the command returned completion without an error - * and the sense data described in table 306 is available. - * - * IOW the 'ATA_SENSE' bit might not be set even though valid - * sense data is available. - * So check for both. - */ - if ((tf.command & ATA_SENSE) || - tf.lbah != 0 || tf.lbam != 0 || tf.lbal != 0) { - ata_scsi_set_sense(cmd, tf.lbah, tf.lbam, tf.lbal); - qc->flags |= ATA_QCFLAG_SENSE_VALID; - ata_dev_warn(dev, "sense data %02x/%02x/%02x\n", - tf.lbah, tf.lbam, tf.lbal); - } else { - ata_dev_warn(dev, "request sense failed stat %02x emask %x\n", - tf.command, err_mask); - } - return err_mask; -} - -/** * atapi_eh_request_sense - perform ATAPI REQUEST_SENSE * @dev: device to perform REQUEST_SENSE to * @sense_buf: result sense data buffer (SCSI_SENSE_BUFFERSIZE bytes long) @@ -1855,19 +1789,6 @@ void ata_eh_analyze_ncq_error(struct ata_link *link) memcpy(&qc->result_tf, &tf, sizeof(tf)); qc->result_tf.flags = ATA_TFLAG_ISADDR | ATA_TFLAG_LBA | ATA_TFLAG_LBA48; qc->err_mask |= AC_ERR_DEV | AC_ERR_NCQ; - if (qc->result_tf.auxiliary) { - char sense_key, asc, ascq; - - sense_key = (qc->result_tf.auxiliary >> 16) & 0xff; - asc = (qc->result_tf.auxiliary >> 8) & 0xff; - ascq = qc->result_tf.auxiliary & 0xff; - ata_dev_dbg(dev, "NCQ Autosense %02x/%02x/%02x\n", - sense_key, asc, ascq); - ata_scsi_set_sense(qc->scsicmd, sense_key, asc, ascq); - ata_scsi_set_sense_information(qc->scsicmd, &qc->result_tf); - qc->flags |= ATA_QCFLAG_SENSE_VALID; - } - ehc->i.err_mask &= ~AC_ERR_DEV; } @@ -1897,27 +1818,6 @@ static unsigned int ata_eh_analyze_tf(struct ata_queued_cmd *qc, return ATA_EH_RESET; } - /* - * Sense data reporting does not work if the - * device fault bit is set. - */ - if ((stat & ATA_SENSE) && !(stat & ATA_DF) && - !(qc->flags & ATA_QCFLAG_SENSE_VALID)) { - if (!(qc->ap->pflags & ATA_PFLAG_FROZEN)) { - tmp = ata_eh_request_sense(qc, qc->scsicmd); - if (tmp) - qc->err_mask |= tmp; - else - ata_scsi_set_sense_information(qc->scsicmd, tf); - } else { - ata_dev_warn(qc->dev, "sense data available but port frozen\n"); - } - } - - /* Set by NCQ autosense or request sense above */ - if (qc->flags & ATA_QCFLAG_SENSE_VALID) - return 0; - if (stat & (ATA_ERR | ATA_DF)) qc->err_mask |= AC_ERR_DEV; else @@ -2661,15 +2561,14 @@ static void ata_eh_link_report(struct ata_link *link) #ifdef CONFIG_ATA_VERBOSE_ERROR if (res->command & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | - ATA_SENSE | ATA_ERR)) { + ATA_ERR)) { if (res->command & ATA_BUSY) ata_dev_err(qc->dev, "status: { Busy }\n"); else - ata_dev_err(qc->dev, "status: { %s%s%s%s%s}\n", + ata_dev_err(qc->dev, "status: { %s%s%s%s}\n", res->command & ATA_DRDY ? "DRDY " : "", res->command & ATA_DF ? "DF " : "", res->command & ATA_DRQ ? "DRQ " : "", - res->command & ATA_SENSE ? "SENSE " : "", res->command & ATA_ERR ? "ERR " : ""); } diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 641a61a..0d7f0da 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -270,28 +270,13 @@ DEVICE_ATTR(unload_heads, S_IRUGO | S_IWUSR, ata_scsi_park_show, ata_scsi_park_store); EXPORT_SYMBOL_GPL(dev_attr_unload_heads); -void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq) +static void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq) { - if (!cmd) - return; - cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION; scsi_build_sense_buffer(0, cmd->sense_buffer, sk, asc, ascq); } -void ata_scsi_set_sense_information(struct scsi_cmnd *cmd, - const struct ata_taskfile *tf) -{ - u64 information; - - if (!cmd) - return; - - information = ata_tf_read_block(tf, NULL); - scsi_set_sense_information(cmd->sense_buffer, information); -} - static ssize_t ata_scsi_em_message_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) @@ -1792,9 +1777,7 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc) ((cdb[2] & 0x20) || need_sense)) { ata_gen_passthru_sense(qc); } else { - if (qc->flags & ATA_QCFLAG_SENSE_VALID) { - cmd->result = SAM_STAT_CHECK_CONDITION; - } else if (!need_sense) { + if (!need_sense) { cmd->result = SAM_STAT_GOOD; } else { /* TODO: decide which descriptor format to use diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index a998a17..f840ca1 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -67,8 +67,7 @@ extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev, int tag); extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, u64 block, u32 n_block, unsigned int tf_flags, unsigned int tag); -extern u64 ata_tf_read_block(const struct ata_taskfile *tf, - struct ata_device *dev); +extern u64 ata_tf_read_block(struct ata_taskfile *tf, struct ata_device *dev); extern unsigned ata_exec_internal(struct ata_device *dev, struct ata_taskfile *tf, const u8 *cdb, int dma_dir, void *buf, unsigned int buflen, @@ -138,9 +137,6 @@ extern int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht); extern void ata_scsi_scan_host(struct ata_port *ap, int sync); extern int ata_scsi_offline_dev(struct ata_device *dev); -extern void ata_scsi_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq); -extern void ata_scsi_set_sense_information(struct scsi_cmnd *cmd, - const struct ata_taskfile *tf); extern void ata_scsi_media_change_notify(struct ata_device *dev); extern void ata_scsi_hotplug(struct work_struct *work); extern void ata_schedule_scsi_eh(struct Scsi_Host *shost); diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c index 3a18a8a..fab504f 100644 --- a/drivers/ata/sata_sx4.c +++ b/drivers/ata/sata_sx4.c @@ -1238,8 +1238,12 @@ static unsigned int pdc20621_prog_dimm_global(struct ata_host *host) readl(mmio + PDC_SDRAM_CONTROL); /* Turn on for ECC */ - pdc20621_i2c_read(host, PDC_DIMM0_SPD_DEV_ADDRESS, - PDC_DIMM_SPD_TYPE, &spd0); + if (!pdc20621_i2c_read(host, PDC_DIMM0_SPD_DEV_ADDRESS, + PDC_DIMM_SPD_TYPE, &spd0)) { + pr_err("Failed in i2c read: device=%#x, subaddr=%#x\n", + PDC_DIMM0_SPD_DEV_ADDRESS, PDC_DIMM_SPD_TYPE); + return 1; + } if (spd0 == 0x02) { data |= (0x01 << 16); writel(data, mmio + PDC_SDRAM_CONTROL); @@ -1380,8 +1384,12 @@ static unsigned int pdc20621_dimm_init(struct ata_host *host) /* ECC initiliazation. */ - pdc20621_i2c_read(host, PDC_DIMM0_SPD_DEV_ADDRESS, - PDC_DIMM_SPD_TYPE, &spd0); + if (!pdc20621_i2c_read(host, PDC_DIMM0_SPD_DEV_ADDRESS, + PDC_DIMM_SPD_TYPE, &spd0)) { + pr_err("Failed in i2c read: device=%#x, subaddr=%#x\n", + PDC_DIMM0_SPD_DEV_ADDRESS, PDC_DIMM_SPD_TYPE); + return 1; + } if (spd0 == 0x02) { void *buf; VPRINTK("Start ECC initialization\n"); diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index cfadcce..6457a8a 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -26,7 +26,6 @@ #include <linux/blkdev.h> #include <linux/delay.h> #include <linux/jiffies.h> -#include <asm/unaligned.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> @@ -2523,33 +2522,3 @@ void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq) } } EXPORT_SYMBOL(scsi_build_sense_buffer); - -/** - * scsi_set_sense_information - set the information field in a - * formatted sense data buffer - * @buf: Where to build sense data - * @info: 64-bit information value to be set - * - **/ -void scsi_set_sense_information(u8 *buf, u64 info) -{ - if ((buf[0] & 0x7f) == 0x72) { - u8 *ucp, len; - - len = buf[7]; - ucp = (char *)scsi_sense_desc_find(buf, len + 8, 0); - if (!ucp) { - buf[7] = len + 0xa; - ucp = buf + 8 + len; - } - ucp[0] = 0; - ucp[1] = 0xa; - ucp[2] = 0x80; /* Valid bit */ - ucp[3] = 0; - put_unaligned_be64(info, &ucp[4]); - } else if ((buf[0] & 0x7f) == 0x70) { - buf[0] |= 0x80; - put_unaligned_be64(info, &buf[3]); - } -} -EXPORT_SYMBOL(scsi_set_sense_information); diff --git a/include/linux/ata.h b/include/linux/ata.h index 6c78956..d2992bf 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -385,8 +385,6 @@ enum { SATA_SSP = 0x06, /* Software Settings Preservation */ SATA_DEVSLP = 0x09, /* Device Sleep */ - SETFEATURE_SENSE_DATA = 0xC3, /* Sense Data Reporting feature */ - /* feature values for SET_MAX */ ATA_SET_MAX_ADDR = 0x00, ATA_SET_MAX_PASSWD = 0x01, @@ -530,8 +528,6 @@ struct ata_bmdma_prd { #define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20) #define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4)) #define ata_id_has_devslp(id) ((id)[ATA_ID_FEATURE_SUPP] & (1 << 8)) -#define ata_id_has_ncq_autosense(id) \ - ((id)[ATA_ID_FEATURE_SUPP] & (1 << 7)) static inline bool ata_id_has_hipm(const u16 *id) { @@ -720,20 +716,6 @@ static inline bool ata_id_has_read_log_dma_ext(const u16 *id) return false; } -static inline bool ata_id_has_sense_reporting(const u16 *id) -{ - if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) - return false; - return id[ATA_ID_COMMAND_SET_3] & (1 << 6); -} - -static inline bool ata_id_sense_reporting_enabled(const u16 *id) -{ - if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15))) - return false; - return id[ATA_ID_COMMAND_SET_4] & (1 << 6); -} - /** * ata_id_major_version - get ATA level of drive * @id: Identify data diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h index 4942710..8d1d7fa 100644 --- a/include/scsi/scsi_eh.h +++ b/include/scsi/scsi_eh.h @@ -28,7 +28,6 @@ extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len, u64 * info_out); extern void scsi_build_sense_buffer(int desc, u8 *buf, u8 key, u8 asc, u8 ascq); -extern void scsi_set_sense_information(u8 *buf, u64 info); extern int scsi_ioctl_reset(struct scsi_device *, int __user *); |