From 2fcad9d27168b287e3db61f6694254e0afa32f8c Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 3 Oct 2009 18:27:29 +0900 Subject: ahci: disable 64bit DMA by default on SB600s Till now only one board, ASUS M2A-VM, can do 64bit dma with recent BIOSen. Enabling 64bit DMA by default already broke three boards. Enabling 64bit DMA isn't worth these regressions. Disable 64bit DMA by default and enable it only on boards which are known to work. Signed-off-by: Tejun Heo Reported-by: Gabriele Balducci Reported-by: maierp@informatik.tu-muenchen.de Cc: Shane Huang Cc: stable@kernel.org Signed-off-by: Jeff Garzik diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index acd1162..c950159 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -447,7 +447,8 @@ static const struct ata_port_info ahci_port_info[] = { [board_ahci_sb600] = { AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL | - AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255), + AHCI_HFLAG_NO_MSI | AHCI_HFLAG_SECT255 | + AHCI_HFLAG_32BIT_ONLY), .flags = AHCI_FLAG_COMMON, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, @@ -2650,17 +2651,15 @@ static void ahci_p5wdh_workaround(struct ata_host *host) } } -/* - * SB600 ahci controller on certain boards can't do 64bit DMA with - * older BIOS. - */ -static bool ahci_sb600_32bit_only(struct pci_dev *pdev) +/* only some SB600 ahci controllers can do 64bit DMA */ +static bool ahci_sb600_enable_64bit(struct pci_dev *pdev) { static const struct dmi_system_id sysids[] = { /* * The oldest version known to be broken is 0901 and * working is 1501 which was released on 2007-10-26. - * Force 32bit DMA on anything older than 1501. + * Enable 64bit DMA on 1501 and anything newer. + * * Please read bko#9412 for more info. */ { @@ -2672,48 +2671,29 @@ static bool ahci_sb600_32bit_only(struct pci_dev *pdev) }, .driver_data = "20071026", /* yyyymmdd */ }, - /* - * It's yet unknown whether more recent BIOS fixes the - * problem. Blacklist the whole board for the time - * being. Please read the following thread for more - * info. - * - * http://thread.gmane.org/gmane.linux.ide/42326 - */ - { - .ident = "Gigabyte GA-MA69VM-S2", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, - "Gigabyte Technology Co., Ltd."), - DMI_MATCH(DMI_BOARD_NAME, "GA-MA69VM-S2"), - }, - }, { } }; const struct dmi_system_id *match; + int year, month, date; + char buf[9]; match = dmi_first_match(sysids); if (pdev->bus->number != 0 || pdev->devfn != PCI_DEVFN(0x12, 0) || !match) return false; - if (match->driver_data) { - int year, month, date; - char buf[9]; - - dmi_get_date(DMI_BIOS_DATE, &year, &month, &date); - snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date); - - if (strcmp(buf, match->driver_data) >= 0) - return false; + dmi_get_date(DMI_BIOS_DATE, &year, &month, &date); + snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date); + if (strcmp(buf, match->driver_data) >= 0) { + dev_printk(KERN_WARNING, &pdev->dev, "%s: enabling 64bit DMA\n", + match->ident); + return true; + } else { dev_printk(KERN_WARNING, &pdev->dev, "%s: BIOS too old, " "forcing 32bit DMA, update BIOS\n", match->ident); - } else - dev_printk(KERN_WARNING, &pdev->dev, "%s: this board can't " - "do 64bit DMA, forcing 32bit\n", match->ident); - - return true; + return false; + } } static bool ahci_broken_system_poweroff(struct pci_dev *pdev) @@ -2926,9 +2906,9 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (board_id == board_ahci_sb700 && pdev->revision >= 0x40) hpriv->flags &= ~AHCI_HFLAG_IGN_SERR_INTERNAL; - /* apply sb600 32bit only quirk */ - if (ahci_sb600_32bit_only(pdev)) - hpriv->flags |= AHCI_HFLAG_32BIT_ONLY; + /* only some SB600s can do 64bit DMA */ + if (ahci_sb600_enable_64bit(pdev)) + hpriv->flags &= ~AHCI_HFLAG_32BIT_ONLY; if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev)) pci_intx(pdev, 1); -- cgit v0.10.2 From c21c8066be5a2870b3e047616e03e9e56a4701a4 Mon Sep 17 00:00:00 2001 From: Dirk Hohndel Date: Mon, 28 Sep 2009 21:56:07 -0400 Subject: pata_ali: trivial fix of a very frequent spelling mistake something-bility is spelled as something-blity so a grep for 'blit' would find these lines I broke this one out from the rest as it actually changes the output of a kernel message - so it could in theory change the behavior of tools that parse that ouput Signed-off-by: Dirk Hohndel Signed-off-by: Jeff Garzik diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c index fc9c5d6..1432dc9 100644 --- a/drivers/ata/pata_ali.c +++ b/drivers/ata/pata_ali.c @@ -290,7 +290,7 @@ static void ali_warn_atapi_dma(struct ata_device *adev) if (print_info && adev->class == ATA_DEV_ATAPI && !ali_atapi_dma) { ata_dev_printk(adev, KERN_WARNING, - "WARNING: ATAPI DMA disabled for reliablity issues. It can be enabled\n"); + "WARNING: ATAPI DMA disabled for reliability issues. It can be enabled\n"); ata_dev_printk(adev, KERN_WARNING, "WARNING: via pata_ali.atapi_dma modparam or corresponding sysfs node.\n"); } -- cgit v0.10.2 From 4c521c8ef0e802f88f1d80352dd1b3d6a6aa1cc8 Mon Sep 17 00:00:00 2001 From: Robert Hancock Date: Sun, 20 Sep 2009 17:02:31 -0600 Subject: ahci: display all AHCI 1.3 HBA capability flags (v2) Update the AHCI driver to display all of the HBA capabilities defined in the AHCI 1.3 specification. Some of these are in a new CAP2 (HBA Capabilities Extended) register which is only defined on AHCI 1.2 or later. The spec says that undefined registers should always return 0 on read, but to be safe we assume a value of 0 unless the controller reports AHCI version 1.2 or later. The value can also be retrieved through sysfs as with the existing capability field. For example, on an Intel Ibex Peak (PCH) controller: ahci 0000:00:1f.2: flags: 64bit ncq sntf stag pm led clo pmp pio slum part ems sxs apst We don't do anything special with the new flags yet. Also, change the code that displays the flags to use the same bit enumerations that are used to control actual operation. Signed-off-by: Robert Hancock Signed-off-by: Jeff Garzik diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index c950159..a47d309 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -122,6 +122,7 @@ enum { HOST_VERSION = 0x10, /* AHCI spec. version compliancy */ HOST_EM_LOC = 0x1c, /* Enclosure Management location */ HOST_EM_CTL = 0x20, /* Enclosure Management Control */ + HOST_CAP2 = 0x24, /* host capabilities, extended */ /* HOST_CTL bits */ HOST_RESET = (1 << 0), /* reset controller; self-clear */ @@ -129,16 +130,29 @@ enum { HOST_AHCI_EN = (1 << 31), /* AHCI enabled */ /* HOST_CAP bits */ + HOST_CAP_SXS = (1 << 5), /* Supports External SATA */ HOST_CAP_EMS = (1 << 6), /* Enclosure Management support */ - HOST_CAP_SSC = (1 << 14), /* Slumber capable */ + HOST_CAP_CCC = (1 << 7), /* Command Completion Coalescing */ + HOST_CAP_PART = (1 << 13), /* Partial state capable */ + HOST_CAP_SSC = (1 << 14), /* Slumber state capable */ + HOST_CAP_PIO_MULTI = (1 << 15), /* PIO multiple DRQ support */ + HOST_CAP_FBS = (1 << 16), /* FIS-based switching support */ HOST_CAP_PMP = (1 << 17), /* Port Multiplier support */ + HOST_CAP_ONLY = (1 << 18), /* Supports AHCI mode only */ HOST_CAP_CLO = (1 << 24), /* Command List Override support */ + HOST_CAP_LED = (1 << 25), /* Supports activity LED */ HOST_CAP_ALPM = (1 << 26), /* Aggressive Link PM support */ HOST_CAP_SSS = (1 << 27), /* Staggered Spin-up */ + HOST_CAP_MPS = (1 << 28), /* Mechanical presence switch */ HOST_CAP_SNTF = (1 << 29), /* SNotification register */ HOST_CAP_NCQ = (1 << 30), /* Native Command Queueing */ HOST_CAP_64 = (1 << 31), /* PCI DAC (64-bit DMA) support */ + /* HOST_CAP2 bits */ + HOST_CAP2_BOH = (1 << 0), /* BIOS/OS handoff supported */ + HOST_CAP2_NVMHCI = (1 << 1), /* NVMHCI supported */ + HOST_CAP2_APST = (1 << 2), /* Automatic partial to slumber */ + /* registers for each SATA port */ PORT_LST_ADDR = 0x00, /* command list DMA addr */ PORT_LST_ADDR_HI = 0x04, /* command list DMA addr hi */ @@ -267,8 +281,10 @@ struct ahci_em_priv { struct ahci_host_priv { unsigned int flags; /* AHCI_HFLAG_* */ u32 cap; /* cap to use */ + u32 cap2; /* cap2 to use */ u32 port_map; /* port map to use */ u32 saved_cap; /* saved initial cap */ + u32 saved_cap2; /* saved initial cap2 */ u32 saved_port_map; /* saved initial port_map */ u32 em_loc; /* enclosure management location */ }; @@ -331,12 +347,15 @@ static void ahci_init_sw_activity(struct ata_link *link); static ssize_t ahci_show_host_caps(struct device *dev, struct device_attribute *attr, char *buf); +static ssize_t ahci_show_host_cap2(struct device *dev, + struct device_attribute *attr, char *buf); static ssize_t ahci_show_host_version(struct device *dev, struct device_attribute *attr, char *buf); static ssize_t ahci_show_port_cmd(struct device *dev, struct device_attribute *attr, char *buf); DEVICE_ATTR(ahci_host_caps, S_IRUGO, ahci_show_host_caps, NULL); +DEVICE_ATTR(ahci_host_cap2, S_IRUGO, ahci_show_host_cap2, NULL); DEVICE_ATTR(ahci_host_version, S_IRUGO, ahci_show_host_version, NULL); DEVICE_ATTR(ahci_port_cmd, S_IRUGO, ahci_show_port_cmd, NULL); @@ -345,6 +364,7 @@ static struct device_attribute *ahci_shost_attrs[] = { &dev_attr_em_message_type, &dev_attr_em_message, &dev_attr_ahci_host_caps, + &dev_attr_ahci_host_cap2, &dev_attr_ahci_host_version, &dev_attr_ahci_port_cmd, NULL @@ -733,6 +753,16 @@ static ssize_t ahci_show_host_caps(struct device *dev, return sprintf(buf, "%x\n", hpriv->cap); } +static ssize_t ahci_show_host_cap2(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct ata_port *ap = ata_shost_to_port(shost); + struct ahci_host_priv *hpriv = ap->host->private_data; + + return sprintf(buf, "%x\n", hpriv->cap2); +} + static ssize_t ahci_show_host_version(struct device *dev, struct device_attribute *attr, char *buf) { @@ -772,7 +802,7 @@ static void ahci_save_initial_config(struct pci_dev *pdev, struct ahci_host_priv *hpriv) { void __iomem *mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR]; - u32 cap, port_map; + u32 cap, cap2, vers, port_map; int i; int mv; @@ -785,6 +815,14 @@ static void ahci_save_initial_config(struct pci_dev *pdev, hpriv->saved_cap = cap = readl(mmio + HOST_CAP); hpriv->saved_port_map = port_map = readl(mmio + HOST_PORTS_IMPL); + /* CAP2 register is only defined for AHCI 1.2 and later */ + vers = readl(mmio + HOST_VERSION); + if ((vers >> 16) > 1 || + ((vers >> 16) == 1 && (vers & 0xFFFF) >= 0x200)) + hpriv->saved_cap2 = cap2 = readl(mmio + HOST_CAP2); + else + hpriv->saved_cap2 = cap2 = 0; + /* some chips have errata preventing 64bit use */ if ((cap & HOST_CAP_64) && (hpriv->flags & AHCI_HFLAG_32BIT_ONLY)) { dev_printk(KERN_INFO, &pdev->dev, @@ -870,6 +908,7 @@ static void ahci_save_initial_config(struct pci_dev *pdev, /* record values to use during operation */ hpriv->cap = cap; + hpriv->cap2 = cap2; hpriv->port_map = port_map; } @@ -888,6 +927,8 @@ static void ahci_restore_initial_config(struct ata_host *host) void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; writel(hpriv->saved_cap, mmio + HOST_CAP); + if (hpriv->saved_cap2) + writel(hpriv->saved_cap2, mmio + HOST_CAP2); writel(hpriv->saved_port_map, mmio + HOST_PORTS_IMPL); (void) readl(mmio + HOST_PORTS_IMPL); /* flush */ } @@ -2535,13 +2576,14 @@ static void ahci_print_info(struct ata_host *host) struct ahci_host_priv *hpriv = host->private_data; struct pci_dev *pdev = to_pci_dev(host->dev); void __iomem *mmio = host->iomap[AHCI_PCI_BAR]; - u32 vers, cap, impl, speed; + u32 vers, cap, cap2, impl, speed; const char *speed_s; u16 cc; const char *scc_s; vers = readl(mmio + HOST_VERSION); cap = hpriv->cap; + cap2 = hpriv->cap2; impl = hpriv->port_map; speed = (cap >> 20) & 0xf; @@ -2584,25 +2626,29 @@ static void ahci_print_info(struct ata_host *host) "flags: " "%s%s%s%s%s%s%s" "%s%s%s%s%s%s%s" - "%s\n" + "%s%s%s%s%s%s\n" , - cap & (1 << 31) ? "64bit " : "", - cap & (1 << 30) ? "ncq " : "", - cap & (1 << 29) ? "sntf " : "", - cap & (1 << 28) ? "ilck " : "", - cap & (1 << 27) ? "stag " : "", - cap & (1 << 26) ? "pm " : "", - cap & (1 << 25) ? "led " : "", - - cap & (1 << 24) ? "clo " : "", - cap & (1 << 19) ? "nz " : "", - cap & (1 << 18) ? "only " : "", - cap & (1 << 17) ? "pmp " : "", - cap & (1 << 15) ? "pio " : "", - cap & (1 << 14) ? "slum " : "", - cap & (1 << 13) ? "part " : "", - cap & (1 << 6) ? "ems ": "" + cap & HOST_CAP_64 ? "64bit " : "", + cap & HOST_CAP_NCQ ? "ncq " : "", + cap & HOST_CAP_SNTF ? "sntf " : "", + cap & HOST_CAP_MPS ? "ilck " : "", + cap & HOST_CAP_SSS ? "stag " : "", + cap & HOST_CAP_ALPM ? "pm " : "", + cap & HOST_CAP_LED ? "led " : "", + cap & HOST_CAP_CLO ? "clo " : "", + cap & HOST_CAP_ONLY ? "only " : "", + cap & HOST_CAP_PMP ? "pmp " : "", + cap & HOST_CAP_FBS ? "fbs " : "", + cap & HOST_CAP_PIO_MULTI ? "pio " : "", + cap & HOST_CAP_SSC ? "slum " : "", + cap & HOST_CAP_PART ? "part " : "", + cap & HOST_CAP_CCC ? "ccc " : "", + cap & HOST_CAP_EMS ? "ems " : "", + cap & HOST_CAP_SXS ? "sxs " : "", + cap2 & HOST_CAP2_APST ? "apst " : "", + cap2 & HOST_CAP2_NVMHCI ? "nvmp " : "", + cap2 & HOST_CAP2_BOH ? "boh " : "" ); } -- cgit v0.10.2 From f1bce7f80e3b400cf29787b0afa9c3042b959017 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 16 Sep 2009 04:16:04 +0900 Subject: libata: cosmetic updates We're about to add more SATA_* and ATA_ACPI_FILTER_* constants. Reformat them in preparation. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 01964b6..719e7d2 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -20,16 +20,6 @@ #include -enum { - ATA_ACPI_FILTER_SETXFER = 1 << 0, - ATA_ACPI_FILTER_LOCK = 1 << 1, - ATA_ACPI_FILTER_DIPM = 1 << 2, - - ATA_ACPI_FILTER_DEFAULT = ATA_ACPI_FILTER_SETXFER | - ATA_ACPI_FILTER_LOCK | - ATA_ACPI_FILTER_DIPM, -}; - static unsigned int ata_acpi_gtf_filter = ATA_ACPI_FILTER_DEFAULT; module_param_named(acpi_gtf_filter, ata_acpi_gtf_filter, int, 0644); MODULE_PARM_DESC(acpi_gtf_filter, "filter mask for ACPI _GTF commands, set to filter out (0x1=set xfermode, 0x2=lock/freeze lock, 0x4=DIPM)"); diff --git a/include/linux/ata.h b/include/linux/ata.h index 6299a25..7c5beaf 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -334,9 +334,9 @@ enum { SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ /* SETFEATURE Sector counts for SATA features */ - SATA_AN = 0x05, /* Asynchronous Notification */ - SATA_DIPM = 0x03, /* Device Initiated Power Management */ - SATA_FPDMA_AA = 0x02, /* DMA Setup FIS Auto-Activate */ + SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ + SATA_DIPM = 0x03, /* Device Initiated Power Management */ + SATA_AN = 0x05, /* Asynchronous Notification */ /* feature values for SET_MAX */ ATA_SET_MAX_ADDR = 0x00, diff --git a/include/linux/libata.h b/include/linux/libata.h index 76319bf..5b2f749 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -418,6 +418,15 @@ enum { ATA_TIMING_ACTIVE | ATA_TIMING_RECOVER | ATA_TIMING_DMACK_HOLD | ATA_TIMING_CYCLE | ATA_TIMING_UDMA, + + /* ACPI constants */ + ATA_ACPI_FILTER_SETXFER = 1 << 0, + ATA_ACPI_FILTER_LOCK = 1 << 1, + ATA_ACPI_FILTER_DIPM = 1 << 2, + + ATA_ACPI_FILTER_DEFAULT = ATA_ACPI_FILTER_SETXFER | + ATA_ACPI_FILTER_LOCK | + ATA_ACPI_FILTER_DIPM, }; enum ata_xfer_mask { -- cgit v0.10.2 From fa5b561c4ea170caf9759109acc2e961a7e83bea Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 16 Sep 2009 04:17:02 +0900 Subject: libata: implement more acpi filtering options Currently libata-acpi can only filter DIPM among SATA feature enables via _GTF. This patch adds the capability to filter out FPDMA non-zero offset, in-order guarantee and auto-activation. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 719e7d2..960c6a7 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -22,7 +22,7 @@ static unsigned int ata_acpi_gtf_filter = ATA_ACPI_FILTER_DEFAULT; module_param_named(acpi_gtf_filter, ata_acpi_gtf_filter, int, 0644); -MODULE_PARM_DESC(acpi_gtf_filter, "filter mask for ACPI _GTF commands, set to filter out (0x1=set xfermode, 0x2=lock/freeze lock, 0x4=DIPM)"); +MODULE_PARM_DESC(acpi_gtf_filter, "filter mask for ACPI _GTF commands, set to filter out (0x1=set xfermode, 0x2=lock/freeze lock, 0x4=DIPM, 0x8=FPDMA non-zero offset, 0x10=FPDMA DMA Setup FIS auto-activate)"); #define NO_PORT_MULT 0xffff #define SATA_ADR(root, pmp) (((root) << 16) | (pmp)) @@ -637,12 +637,23 @@ static int ata_acpi_filter_tf(const struct ata_taskfile *tf, return 1; } - if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_DIPM) { + if (tf->command == ATA_CMD_SET_FEATURES && + tf->feature == SETFEATURES_SATA_ENABLE) { /* inhibit enabling DIPM */ - if (tf->command == ATA_CMD_SET_FEATURES && - tf->feature == SETFEATURES_SATA_ENABLE && + if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_DIPM && tf->nsect == SATA_DIPM) return 1; + + /* inhibit FPDMA non-zero offset */ + if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_FPDMA_OFFSET && + (tf->nsect == SATA_FPDMA_OFFSET || + tf->nsect == SATA_FPDMA_IN_ORDER)) + return 1; + + /* inhibit FPDMA auto activation */ + if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_FPDMA_AA && + tf->nsect == SATA_FPDMA_AA) + return 1; } return 0; diff --git a/include/linux/ata.h b/include/linux/ata.h index 7c5beaf..4fb3573 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -334,9 +334,12 @@ enum { SETFEATURES_SATA_DISABLE = 0x90, /* Disable use of SATA feature */ /* SETFEATURE Sector counts for SATA features */ + SATA_FPDMA_OFFSET = 0x01, /* FPDMA non-zero buffer offsets */ SATA_FPDMA_AA = 0x02, /* FPDMA Setup FIS Auto-Activate */ SATA_DIPM = 0x03, /* Device Initiated Power Management */ + SATA_FPDMA_IN_ORDER = 0x04, /* FPDMA in-order data delivery */ SATA_AN = 0x05, /* Asynchronous Notification */ + SATA_SSP = 0x06, /* Software Settings Preservation */ /* feature values for SET_MAX */ ATA_SET_MAX_ADDR = 0x00, diff --git a/include/linux/libata.h b/include/linux/libata.h index 5b2f749..aa52794 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -423,6 +423,8 @@ enum { ATA_ACPI_FILTER_SETXFER = 1 << 0, ATA_ACPI_FILTER_LOCK = 1 << 1, ATA_ACPI_FILTER_DIPM = 1 << 2, + ATA_ACPI_FILTER_FPDMA_OFFSET = 1 << 3, /* FPDMA non-zero offset */ + ATA_ACPI_FILTER_FPDMA_AA = 1 << 4, /* FPDMA auto activate */ ATA_ACPI_FILTER_DEFAULT = ATA_ACPI_FILTER_SETXFER | ATA_ACPI_FILTER_LOCK | -- cgit v0.10.2 From 110f66d25c33c2259b1125255fa7063ab07b8340 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 16 Sep 2009 04:17:28 +0900 Subject: libata: make gtf_filter per-dev Add ->gtf_filter to ata_device and set it to ata_acpi_gtf_filter when initializing ata_link. This is to allow quirks which apply different gtf filters. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 960c6a7..b0882cd 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -20,7 +20,7 @@ #include -static unsigned int ata_acpi_gtf_filter = ATA_ACPI_FILTER_DEFAULT; +unsigned int ata_acpi_gtf_filter = ATA_ACPI_FILTER_DEFAULT; module_param_named(acpi_gtf_filter, ata_acpi_gtf_filter, int, 0644); MODULE_PARM_DESC(acpi_gtf_filter, "filter mask for ACPI _GTF commands, set to filter out (0x1=set xfermode, 0x2=lock/freeze lock, 0x4=DIPM, 0x8=FPDMA non-zero offset, 0x10=FPDMA DMA Setup FIS auto-activate)"); @@ -603,10 +603,11 @@ static void ata_acpi_gtf_to_tf(struct ata_device *dev, tf->command = gtf->tf[6]; /* 0x1f7 */ } -static int ata_acpi_filter_tf(const struct ata_taskfile *tf, +static int ata_acpi_filter_tf(struct ata_device *dev, + const struct ata_taskfile *tf, const struct ata_taskfile *ptf) { - if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_SETXFER) { + if (dev->gtf_filter & ATA_ACPI_FILTER_SETXFER) { /* libata doesn't use ACPI to configure transfer mode. * It will only confuse device configuration. Skip. */ @@ -615,7 +616,7 @@ static int ata_acpi_filter_tf(const struct ata_taskfile *tf, return 1; } - if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_LOCK) { + if (dev->gtf_filter & ATA_ACPI_FILTER_LOCK) { /* BIOS writers, sorry but we don't wanna lock * features unless the user explicitly said so. */ @@ -640,18 +641,18 @@ static int ata_acpi_filter_tf(const struct ata_taskfile *tf, if (tf->command == ATA_CMD_SET_FEATURES && tf->feature == SETFEATURES_SATA_ENABLE) { /* inhibit enabling DIPM */ - if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_DIPM && + if (dev->gtf_filter & ATA_ACPI_FILTER_DIPM && tf->nsect == SATA_DIPM) return 1; /* inhibit FPDMA non-zero offset */ - if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_FPDMA_OFFSET && + if (dev->gtf_filter & ATA_ACPI_FILTER_FPDMA_OFFSET && (tf->nsect == SATA_FPDMA_OFFSET || tf->nsect == SATA_FPDMA_IN_ORDER)) return 1; /* inhibit FPDMA auto activation */ - if (ata_acpi_gtf_filter & ATA_ACPI_FILTER_FPDMA_AA && + if (dev->gtf_filter & ATA_ACPI_FILTER_FPDMA_AA && tf->nsect == SATA_FPDMA_AA) return 1; } @@ -705,7 +706,7 @@ static int ata_acpi_run_tf(struct ata_device *dev, pptf = &ptf; } - if (!ata_acpi_filter_tf(&tf, pptf)) { + if (!ata_acpi_filter_tf(dev, &tf, pptf)) { rtf = tf; err_mask = ata_exec_internal(dev, &rtf, NULL, DMA_NONE, NULL, 0, 0); diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 0ddaf43..b525a09 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5591,6 +5591,9 @@ void ata_link_init(struct ata_port *ap, struct ata_link *link, int pmp) dev->link = link; dev->devno = dev - link->device; +#ifdef CONFIG_ATA_ACPI + dev->gtf_filter = ata_acpi_gtf_filter; +#endif ata_dev_init(dev); } } diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index be8e262..823e630 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -118,6 +118,8 @@ extern void ata_lpm_schedule(struct ata_port *ap, enum link_pm); /* libata-acpi.c */ #ifdef CONFIG_ATA_ACPI +extern unsigned int ata_acpi_gtf_filter; + extern void ata_acpi_associate_sata_port(struct ata_port *ap); extern void ata_acpi_associate(struct ata_host *host); extern void ata_acpi_dissociate(struct ata_host *host); diff --git a/include/linux/libata.h b/include/linux/libata.h index aa52794..8769864 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -598,6 +598,7 @@ struct ata_device { #ifdef CONFIG_ATA_ACPI acpi_handle acpi_handle; union acpi_object *gtf_cache; + unsigned int gtf_filter; #endif /* n_sector is CLEAR_BEGIN, read comment above CLEAR_BEGIN */ u64 n_sectors; /* size of device, if ATA */ -- cgit v0.10.2 From f80ae7e45a0e03da188494c6e947a5c8b0cdfb4a Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 16 Sep 2009 04:18:03 +0900 Subject: ahci: filter FPDMA non-zero offset enable for Aspire 3810T Curiously, Aspire 3810T issues many SATA feature enable commands via _GTF, of which one is invalid and another is not supported by the drive. In the process, it also enables FPDMA non-zero offset. However, the feature also needs to be supported and enabled from the controller and it's wrong to enable it from _GTF unless the controller can do it by default. Currently, this ends up enabling FPDMA non-zero offset only on the drive side leading to NCQ command failures and eventual disabling of NCQ. This patch makes libata filter out FPDMA non-zero offset enable for the machine. This was reported by Marcus Meissner in bnc#522790. https://bugzilla.novell.com/show_bug.cgi?id=522790 Reported-by: Marcus Meissner Signed-off-by: Jeff Garzik diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index a47d309..4edca6e 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -2884,6 +2884,50 @@ static bool ahci_broken_online(struct pci_dev *pdev) return pdev->bus->number == (val >> 8) && pdev->devfn == (val & 0xff); } +static void ahci_gtf_filter_workaround(struct ata_host *host) +{ + static const struct dmi_system_id sysids[] = { + /* + * Aspire 3810T issues a bunch of SATA enable commands + * via _GTF including an invalid one and one which is + * rejected by the device. Among the successful ones + * is FPDMA non-zero offset enable which when enabled + * only on the drive side leads to NCQ command + * failures. Filter it out. + */ + { + .ident = "Aspire 3810T", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3810T"), + }, + .driver_data = (void *)ATA_ACPI_FILTER_FPDMA_OFFSET, + }, + { } + }; + const struct dmi_system_id *dmi = dmi_first_match(sysids); + unsigned int filter; + int i; + + if (!dmi) + return; + + filter = (unsigned long)dmi->driver_data; + dev_printk(KERN_INFO, host->dev, + "applying extra ACPI _GTF filter 0x%x for %s\n", + filter, dmi->ident); + + for (i = 0; i < host->n_ports; i++) { + struct ata_port *ap = host->ports[i]; + struct ata_link *link; + struct ata_device *dev; + + ata_for_each_link(link, ap, EDGE) + ata_for_each_dev(dev, link, ALL) + dev->gtf_filter |= filter; + } +} + static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { static int printed_version; @@ -3049,6 +3093,9 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) /* apply workaround for ASUS P5W DH Deluxe mainboard */ ahci_p5wdh_workaround(host); + /* apply gtf filter quirk */ + ahci_gtf_filter_workaround(host); + /* initialize adapter */ rc = ahci_configure_dma_masks(pdev, hpriv->cap & HOST_CAP_64); if (rc) -- cgit v0.10.2 From 3b761d3d437cffcaf160a5d37eb6b3b186e491d5 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 6 Oct 2009 17:08:40 +0900 Subject: libata: fix incorrect link online check during probe While trying to work around spurious detection retries for non-existent devices on slave links, commit 816ab89782ac139a8b65147cca990822bb7e8675 incorrectly added link offline check logic before ata_eh_thaw() was called. This means that if an occupied link goes down briefly at the time that offline check was performed, device class will be cleared to ATA_DEV_NONE and libata wouldn't retry thus failing detection of the device. The offline check should be done after the port is thawed together with online check so that such link glitches can be detected by the interrupt handler and handled properly. Signed-off-by: Tejun Heo Reported-by: Tim Blechmann Cc: stable@kernel.org Signed-off-by: Jeff Garzik diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index a04488f..0a97822 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -2667,14 +2667,14 @@ int ata_eh_reset(struct ata_link *link, int classify, dev->pio_mode = XFER_PIO_0; dev->flags &= ~ATA_DFLAG_SLEEPING; - if (!ata_phys_link_offline(ata_dev_phys_link(dev))) { - /* apply class override */ - if (lflags & ATA_LFLAG_ASSUME_ATA) - classes[dev->devno] = ATA_DEV_ATA; - else if (lflags & ATA_LFLAG_ASSUME_SEMB) - classes[dev->devno] = ATA_DEV_SEMB_UNSUP; - } else - classes[dev->devno] = ATA_DEV_NONE; + if (ata_phys_link_offline(ata_dev_phys_link(dev))) + continue; + + /* apply class override */ + if (lflags & ATA_LFLAG_ASSUME_ATA) + classes[dev->devno] = ATA_DEV_ATA; + else if (lflags & ATA_LFLAG_ASSUME_SEMB) + classes[dev->devno] = ATA_DEV_SEMB_UNSUP; } /* record current link speed */ @@ -2713,34 +2713,48 @@ int ata_eh_reset(struct ata_link *link, int classify, ap->pflags &= ~ATA_PFLAG_EH_PENDING; spin_unlock_irqrestore(link->ap->lock, flags); - /* Make sure onlineness and classification result correspond. + /* + * Make sure onlineness and classification result correspond. * Hotplug could have happened during reset and some * controllers fail to wait while a drive is spinning up after * being hotplugged causing misdetection. By cross checking - * link onlineness and classification result, those conditions - * can be reliably detected and retried. + * link on/offlineness and classification result, those + * conditions can be reliably detected and retried. */ nr_unknown = 0; ata_for_each_dev(dev, link, ALL) { - /* convert all ATA_DEV_UNKNOWN to ATA_DEV_NONE */ - if (classes[dev->devno] == ATA_DEV_UNKNOWN) { - classes[dev->devno] = ATA_DEV_NONE; - if (ata_phys_link_online(ata_dev_phys_link(dev))) + if (ata_phys_link_online(ata_dev_phys_link(dev))) { + if (classes[dev->devno] == ATA_DEV_UNKNOWN) { + ata_dev_printk(dev, KERN_DEBUG, "link online " + "but device misclassifed\n"); + classes[dev->devno] = ATA_DEV_NONE; nr_unknown++; + } + } else if (ata_phys_link_offline(ata_dev_phys_link(dev))) { + if (ata_class_enabled(classes[dev->devno])) + ata_dev_printk(dev, KERN_DEBUG, "link offline, " + "clearing class %d to NONE\n", + classes[dev->devno]); + classes[dev->devno] = ATA_DEV_NONE; + } else if (classes[dev->devno] == ATA_DEV_UNKNOWN) { + ata_dev_printk(dev, KERN_DEBUG, "link status unknown, " + "clearing UNKNOWN to NONE\n"); + classes[dev->devno] = ATA_DEV_NONE; } } if (classify && nr_unknown) { if (try < max_tries) { ata_link_printk(link, KERN_WARNING, "link online but " - "device misclassified, retrying\n"); + "%d devices misclassified, retrying\n", + nr_unknown); failed_link = link; rc = -EAGAIN; goto fail; } ata_link_printk(link, KERN_WARNING, - "link online but device misclassified, " - "device detection might fail\n"); + "link online but %d devices misclassified, " + "device detection might fail\n", nr_unknown); } /* reset successful, schedule revalidation */ -- cgit v0.10.2 From 566b54c8a491654b145b6ae246039e5b4a56e587 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 7 Oct 2009 00:26:57 +0200 Subject: pata_atp867x: fix it to not claim MWDMA support MWDMA modes are not supported by this driver currently. Acked-by: Jung-Ik (John) Lee Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Jeff Garzik diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c index 7990de9..ebfc8ff 100644 --- a/drivers/ata/pata_atp867x.c +++ b/drivers/ata/pata_atp867x.c @@ -118,20 +118,13 @@ struct atp867x_priv { int pci66mhz; }; -static inline u8 atp867x_speed_to_mode(u8 speed) -{ - return speed - XFER_UDMA_0 + 1; -} - static void atp867x_set_dmamode(struct ata_port *ap, struct ata_device *adev) { struct pci_dev *pdev = to_pci_dev(ap->host->dev); struct atp867x_priv *dp = ap->private_data; u8 speed = adev->dma_mode; u8 b; - u8 mode; - - mode = atp867x_speed_to_mode(speed); + u8 mode = speed - XFER_UDMA_0 + 1; /* * Doc 6.6.9: decrease the udma mode value by 1 for safer UDMA speed @@ -471,7 +464,6 @@ static int atp867x_init_one(struct pci_dev *pdev, static const struct ata_port_info info_867x = { .flags = ATA_FLAG_SLAVE_POSS, .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, .udma_mask = ATA_UDMA6, .port_ops = &atp867x_ops, }; -- cgit v0.10.2 From 64207f59137fd300a869e35b14c15f775c64c6fc Mon Sep 17 00:00:00 2001 From: "John(Jung-Ik) Lee" Date: Wed, 7 Oct 2009 00:27:03 +0200 Subject: pata_atp867x: clarifications in timings calculations and cable detection Signed-off-by: John(Jung-Ik) Lee Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Jeff Garzik diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c index ebfc8ff..27d3148 100644 --- a/drivers/ata/pata_atp867x.c +++ b/drivers/ata/pata_atp867x.c @@ -149,8 +149,10 @@ static void atp867x_set_dmamode(struct ata_port *ap, struct ata_device *adev) iowrite8(b, dp->dma_mode); } -static int atp867x_get_active_clocks_shifted(unsigned int clk) +static int atp867x_get_active_clocks_shifted(struct ata_port *ap, + unsigned int clk) { + struct atp867x_priv *dp = ap->private_data; unsigned char clocks = clk; switch (clocks) { @@ -159,15 +161,25 @@ static int atp867x_get_active_clocks_shifted(unsigned int clk) break; case 1 ... 7: break; - case 8 ... 12: + case 9 ... 12: clocks = 7; break; default: printk(KERN_WARNING "ATP867X: active %dclk is invalid. " "Using default 8clk.\n", clk); - clocks = 0; /* 8 clk */ - break; + case 8: /* default 8 clk */ + clocks = 0; + goto active_clock_shift_done; } + + /* + * Doc 6.6.9: increase the clock value by 1 for safer PIO speed + * on 66MHz bus + */ + if (dp->pci66mhz && clocks < 7) + clocks++; + +active_clock_shift_done: return clocks << ATP867X_IO_PIOSPD_ACTIVE_SHIFT; } @@ -181,20 +193,19 @@ static int atp867x_get_recover_clocks_shifted(unsigned int clk) break; case 1 ... 11: break; - case 12: - clocks = 0; - break; case 13: case 14: - --clocks; + --clocks; /* by the spec */ break; case 15: break; default: printk(KERN_WARNING "ATP867X: recover %dclk is invalid. " - "Using default 15clk.\n", clk); - clocks = 0; /* 12 clk */ + "Using default 12clk.\n", clk); + case 12: /* default 12 clk */ + clocks = 0; break; } + return clocks << ATP867X_IO_PIOSPD_RECOVER_SHIFT; } @@ -223,10 +234,8 @@ static void atp867x_set_piomode(struct ata_port *ap, struct ata_device *adev) b = (b & ~ATP867X_IO_DMAMODE_MSTR_MASK); iowrite8(b, dp->dma_mode); - b = atp867x_get_active_clocks_shifted(t.active) | + b = atp867x_get_active_clocks_shifted(ap, t.active) | atp867x_get_recover_clocks_shifted(t.recover); - if (dp->pci66mhz) - b += 0x10; if (adev->devno & 1) iowrite8(b, dp->slave_piospd); @@ -239,9 +248,24 @@ static void atp867x_set_piomode(struct ata_port *ap, struct ata_device *adev) iowrite8(b, dp->eightb_piospd); } +static int atp867x_cable_override(struct pci_dev *pdev) +{ + if (pdev->subsystem_vendor == PCI_VENDOR_ID_ARTOP && + (pdev->subsystem_device == PCI_DEVICE_ID_ARTOP_ATP867A || + pdev->subsystem_device == PCI_DEVICE_ID_ARTOP_ATP867B)) { + return 1; + } + return 0; +} + static int atp867x_cable_detect(struct ata_port *ap) { - return ATA_CBL_PATA40_SHORT; + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + + if (atp867x_cable_override(pdev)) + return ATA_CBL_PATA40_SHORT; + + return ATA_CBL_PATA_UNK; } static struct scsi_host_template atp867x_sht = { -- cgit v0.10.2 From c59bcc37cb56e00ae0582339bea948853d600436 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 7 Oct 2009 00:27:19 +0200 Subject: pata_atp867x: PIO support fixes * use 8 clk setting for active clocks == 7 (was 12 clk) * use 12 clk setting for active clocks > 12 (was 8 clk) * do 66MHz bus fixup before mapping active clocks * fix setup of PIO command timings Acked-by: Jung-Ik (John) Lee Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Jeff Garzik diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c index 27d3148..4a2cd9a 100644 --- a/drivers/ata/pata_atp867x.c +++ b/drivers/ata/pata_atp867x.c @@ -155,30 +155,31 @@ static int atp867x_get_active_clocks_shifted(struct ata_port *ap, struct atp867x_priv *dp = ap->private_data; unsigned char clocks = clk; + /* + * Doc 6.6.9: increase the clock value by 1 for safer PIO speed + * on 66MHz bus + */ + if (dp->pci66mhz) + clocks++; + switch (clocks) { case 0: clocks = 1; break; - case 1 ... 7: - break; - case 9 ... 12: - clocks = 7; + case 1 ... 6: break; default: printk(KERN_WARNING "ATP867X: active %dclk is invalid. " - "Using default 8clk.\n", clk); + "Using 12clk.\n", clk); + case 9 ... 12: + clocks = 7; /* 12 clk */ + break; + case 7: case 8: /* default 8 clk */ clocks = 0; goto active_clock_shift_done; } - /* - * Doc 6.6.9: increase the clock value by 1 for safer PIO speed - * on 66MHz bus - */ - if (dp->pci66mhz && clocks < 7) - clocks++; - active_clock_shift_done: return clocks << ATP867X_IO_PIOSPD_ACTIVE_SHIFT; } @@ -193,7 +194,8 @@ static int atp867x_get_recover_clocks_shifted(unsigned int clk) break; case 1 ... 11: break; - case 13: case 14: + case 13: + case 14: --clocks; /* by the spec */ break; case 15: @@ -235,16 +237,16 @@ static void atp867x_set_piomode(struct ata_port *ap, struct ata_device *adev) iowrite8(b, dp->dma_mode); b = atp867x_get_active_clocks_shifted(ap, t.active) | - atp867x_get_recover_clocks_shifted(t.recover); + atp867x_get_recover_clocks_shifted(t.recover); if (adev->devno & 1) iowrite8(b, dp->slave_piospd); else iowrite8(b, dp->mstr_piospd); - /* - * use the same value for comand timing as for PIO timimg - */ + b = atp867x_get_active_clocks_shifted(ap, t.act8b) | + atp867x_get_recover_clocks_shifted(t.rec8b); + iowrite8(b, dp->eightb_piospd); } -- cgit v0.10.2 From 7affb32a32eabbbe42d6746923ec1d0bf7327234 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Wed, 7 Oct 2009 00:27:25 +0200 Subject: pata_atp867x: add Power Management support Cc: Jung-Ik (John) Lee Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Jeff Garzik diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c index 4a2cd9a..6fe7ded 100644 --- a/drivers/ata/pata_atp867x.c +++ b/drivers/ata/pata_atp867x.c @@ -533,6 +533,23 @@ err_out: return rc; } +#ifdef CONFIG_PM +static int atp867x_reinit_one(struct pci_dev *pdev) +{ + struct ata_host *host = dev_get_drvdata(&pdev->dev); + int rc; + + rc = ata_pci_device_do_resume(pdev); + if (rc) + return rc; + + atp867x_fixup(host); + + ata_host_resume(host); + return 0; +} +#endif + static struct pci_device_id atp867x_pci_tbl[] = { { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP867A), 0 }, { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP867B), 0 }, @@ -544,6 +561,10 @@ static struct pci_driver atp867x_driver = { .id_table = atp867x_pci_tbl, .probe = atp867x_init_one, .remove = ata_pci_remove_one, +#ifdef CONFIG_PM + .suspend = ata_pci_device_suspend, + .resume = atp867x_reinit_one, +#endif }; static int __init atp867x_init(void) -- cgit v0.10.2