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提交 2ba14a01 编写于 作者: L Linus Torvalds
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Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (67 commits)
  fix drivers/ata/sata_fsl.c double-decl
  [libata] Prefer SCSI_SENSE_BUFFERSIZE to sizeof()
  pata_legacy: Merge winbond support
  ata_generic: Cenatek support
  pata_winbond: error return
  pata_serverworks: Fix cable types and cosmetics
  pata_mpc52xx: remove un-needed assignment
  libata: fix off-by-one in error categorization
  ahci: factor out AHCI enabling and enable AHCI before reading CAP
  ata_piix: implement SIDPR SCR access
  ata_piix: convert to prepare - activate initialization
  libata: factor out ata_pci_activate_sff_host() from ata_pci_one()
  [libata] Prefer SCSI_SENSE_BUFFERSIZE to sizeof()
  pata_legacy: resychronize with upstream changes and resubmit
  [libata] pata_legacy: typo fix
  [libata] pata_winbond: update for new ->data_xfer hook
  pata_pcmcia: convert to new data_xfer prototype
  libata annotations and fixes
  libata: use dev_driver_string() instead of "libata" in libata-sff.c
  ata_piix: kill unused constants and flags
  ...
上级 99f1c97d a984f58d
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Showing with 2851 addition and 1323 deletion
drivers/ata/Kconfig
浏览文件 @ 2ba14a01
......@@ -459,6 +459,15 @@ config PATA_NETCELL
If unsure, say N.
config PATA_NINJA32
tristate "Ninja32/Delkin Cardbus ATA support (Experimental)"
depends on PCI && EXPERIMENTAL
help
This option enables support for the Ninja32, Delkin and
possibly other brands of Cardbus ATA adapter
If unsure, say N.
config PATA_NS87410
tristate "Nat Semi NS87410 PATA support (Experimental)"
depends on PCI && EXPERIMENTAL
......
drivers/ata/Makefile
浏览文件 @ 2ba14a01
......@@ -41,6 +41,7 @@ obj-$(CONFIG_PATA_IT821X) += pata_it821x.o
obj-$(CONFIG_PATA_IT8213) += pata_it8213.o
obj-$(CONFIG_PATA_JMICRON) += pata_jmicron.o
obj-$(CONFIG_PATA_NETCELL) += pata_netcell.o
obj-$(CONFIG_PATA_NINJA32) += pata_ninja32.o
obj-$(CONFIG_PATA_NS87410) += pata_ns87410.o
obj-$(CONFIG_PATA_NS87415) += pata_ns87415.o
obj-$(CONFIG_PATA_OPTI) += pata_opti.o
......
drivers/ata/ahci.c
浏览文件 @ 2ba14a01
......@@ -198,18 +198,18 @@ enum {
};
struct ahci_cmd_hdr {
u32 opts;
u32 status;
u32 tbl_addr;
u32 tbl_addr_hi;
u32 reserved[4];
__le32 opts;
__le32 status;
__le32 tbl_addr;
__le32 tbl_addr_hi;
__le32 reserved[4];
};
struct ahci_sg {
u32 addr;
u32 addr_hi;
u32 reserved;
u32 flags_size;
__le32 addr;
__le32 addr_hi;
__le32 reserved;
__le32 flags_size;
};
struct ahci_host_priv {
......@@ -597,6 +597,20 @@ static inline void __iomem *ahci_port_base(struct ata_port *ap)
return __ahci_port_base(ap->host, ap->port_no);
}
static void ahci_enable_ahci(void __iomem *mmio)
{
u32 tmp;
/* turn on AHCI_EN */
tmp = readl(mmio + HOST_CTL);
if (!(tmp & HOST_AHCI_EN)) {
tmp |= HOST_AHCI_EN;
writel(tmp, mmio + HOST_CTL);
tmp = readl(mmio + HOST_CTL); /* flush && sanity check */
WARN_ON(!(tmp & HOST_AHCI_EN));
}
}
/**
* ahci_save_initial_config - Save and fixup initial config values
* @pdev: target PCI device
......@@ -619,6 +633,9 @@ static void ahci_save_initial_config(struct pci_dev *pdev,
u32 cap, port_map;
int i;
/* make sure AHCI mode is enabled before accessing CAP */
ahci_enable_ahci(mmio);
/* Values prefixed with saved_ are written back to host after
* reset. Values without are used for driver operation.
*/
......@@ -1036,19 +1053,17 @@ static int ahci_deinit_port(struct ata_port *ap, const char **emsg)
static int ahci_reset_controller(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
struct ahci_host_priv *hpriv = host->private_data;
void __iomem *mmio = host->iomap[AHCI_PCI_BAR];
u32 tmp;
/* we must be in AHCI mode, before using anything
* AHCI-specific, such as HOST_RESET.
*/
tmp = readl(mmio + HOST_CTL);
if (!(tmp & HOST_AHCI_EN)) {
tmp |= HOST_AHCI_EN;
writel(tmp, mmio + HOST_CTL);
}
ahci_enable_ahci(mmio);
/* global controller reset */
tmp = readl(mmio + HOST_CTL);
if ((tmp & HOST_RESET) == 0) {
writel(tmp | HOST_RESET, mmio + HOST_CTL);
readl(mmio + HOST_CTL); /* flush */
......@@ -1067,8 +1082,7 @@ static int ahci_reset_controller(struct ata_host *host)
}
/* turn on AHCI mode */
writel(HOST_AHCI_EN, mmio + HOST_CTL);
(void) readl(mmio + HOST_CTL); /* flush */
ahci_enable_ahci(mmio);
/* some registers might be cleared on reset. restore initial values */
ahci_restore_initial_config(host);
......@@ -1078,8 +1092,10 @@ static int ahci_reset_controller(struct ata_host *host)
/* configure PCS */
pci_read_config_word(pdev, 0x92, &tmp16);
tmp16 |= 0xf;
pci_write_config_word(pdev, 0x92, tmp16);
if ((tmp16 & hpriv->port_map) != hpriv->port_map) {
tmp16 |= hpriv->port_map;
pci_write_config_word(pdev, 0x92, tmp16);
}
}
return 0;
......@@ -1480,35 +1496,31 @@ static void ahci_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
static unsigned int ahci_fill_sg(struct ata_queued_cmd *qc, void *cmd_tbl)
{
struct scatterlist *sg;
struct ahci_sg *ahci_sg;
unsigned int n_sg = 0;
struct ahci_sg *ahci_sg = cmd_tbl + AHCI_CMD_TBL_HDR_SZ;
unsigned int si;
VPRINTK("ENTER\n");
/*
* Next, the S/G list.
*/
ahci_sg = cmd_tbl + AHCI_CMD_TBL_HDR_SZ;
ata_for_each_sg(sg, qc) {
for_each_sg(qc->sg, sg, qc->n_elem, si) {
dma_addr_t addr = sg_dma_address(sg);
u32 sg_len = sg_dma_len(sg);
ahci_sg->addr = cpu_to_le32(addr & 0xffffffff);
ahci_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16);
ahci_sg->flags_size = cpu_to_le32(sg_len - 1);
ahci_sg++;
n_sg++;
ahci_sg[si].addr = cpu_to_le32(addr & 0xffffffff);
ahci_sg[si].addr_hi = cpu_to_le32((addr >> 16) >> 16);
ahci_sg[si].flags_size = cpu_to_le32(sg_len - 1);
}
return n_sg;
return si;
}
static void ahci_qc_prep(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ahci_port_priv *pp = ap->private_data;
int is_atapi = is_atapi_taskfile(&qc->tf);
int is_atapi = ata_is_atapi(qc->tf.protocol);
void *cmd_tbl;
u32 opts;
const u32 cmd_fis_len = 5; /* five dwords */
......
drivers/ata/ata_generic.c
浏览文件 @ 2ba14a01
......@@ -26,7 +26,7 @@
#include <linux/libata.h>
#define DRV_NAME "ata_generic"
#define DRV_VERSION "0.2.13"
#define DRV_VERSION "0.2.15"
/*
* A generic parallel ATA driver using libata
......@@ -48,27 +48,47 @@ static int generic_set_mode(struct ata_link *link, struct ata_device **unused)
struct ata_port *ap = link->ap;
int dma_enabled = 0;
struct ata_device *dev;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
/* Bits 5 and 6 indicate if DMA is active on master/slave */
if (ap->ioaddr.bmdma_addr)
dma_enabled = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
if (pdev->vendor == PCI_VENDOR_ID_CENATEK)
dma_enabled = 0xFF;
ata_link_for_each_dev(dev, link) {
if (ata_dev_enabled(dev)) {
/* We don't really care */
dev->pio_mode = XFER_PIO_0;
dev->dma_mode = XFER_MW_DMA_0;
/* We do need the right mode information for DMA or PIO
and this comes from the current configuration flags */
if (dma_enabled & (1 << (5 + dev->devno))) {
ata_id_to_dma_mode(dev, XFER_MW_DMA_0);
dev->flags &= ~ATA_DFLAG_PIO;
} else {
ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
dev->xfer_mode = XFER_PIO_0;
dev->xfer_shift = ATA_SHIFT_PIO;
dev->flags |= ATA_DFLAG_PIO;
if (!ata_dev_enabled(dev))
continue;
/* We don't really care */
dev->pio_mode = XFER_PIO_0;
dev->dma_mode = XFER_MW_DMA_0;
/* We do need the right mode information for DMA or PIO
and this comes from the current configuration flags */
if (dma_enabled & (1 << (5 + dev->devno))) {
unsigned int xfer_mask = ata_id_xfermask(dev->id);
const char *name;
if (xfer_mask & (ATA_MASK_MWDMA | ATA_MASK_UDMA))
name = ata_mode_string(xfer_mask);
else {
/* SWDMA perhaps? */
name = "DMA";
xfer_mask |= ata_xfer_mode2mask(XFER_MW_DMA_0);
}
ata_dev_printk(dev, KERN_INFO, "configured for %s\n",
name);
dev->xfer_mode = ata_xfer_mask2mode(xfer_mask);
dev->xfer_shift = ata_xfer_mode2shift(dev->xfer_mode);
dev->flags &= ~ATA_DFLAG_PIO;
} else {
ata_dev_printk(dev, KERN_INFO, "configured for PIO\n");
dev->xfer_mode = XFER_PIO_0;
dev->xfer_shift = ATA_SHIFT_PIO;
dev->flags |= ATA_DFLAG_PIO;
}
}
return 0;
......@@ -185,6 +205,7 @@ static struct pci_device_id ata_generic[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), },
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C561), },
{ PCI_DEVICE(PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558), },
{ PCI_DEVICE(PCI_VENDOR_ID_CENATEK,PCI_DEVICE_ID_CENATEK_IDE), },
{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO), },
{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), },
{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), },
......
drivers/ata/ata_piix.c
浏览文件 @ 2ba14a01
......@@ -101,39 +101,21 @@ enum {
ICH5_PMR = 0x90, /* port mapping register */
ICH5_PCS = 0x92, /* port control and status */
PIIX_SCC = 0x0A, /* sub-class code register */
PIIX_SIDPR_BAR = 5,
PIIX_SIDPR_LEN = 16,
PIIX_SIDPR_IDX = 0,
PIIX_SIDPR_DATA = 4,
PIIX_FLAG_SCR = (1 << 26), /* SCR available */
PIIX_FLAG_AHCI = (1 << 27), /* AHCI possible */
PIIX_FLAG_CHECKINTR = (1 << 28), /* make sure PCI INTx enabled */
PIIX_FLAG_SIDPR = (1 << 29), /* SATA idx/data pair regs */
PIIX_PATA_FLAGS = ATA_FLAG_SLAVE_POSS,
PIIX_SATA_FLAGS = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR,
/* combined mode. if set, PATA is channel 0.
* if clear, PATA is channel 1.
*/
PIIX_PORT_ENABLED = (1 << 0),
PIIX_PORT_PRESENT = (1 << 4),
PIIX_80C_PRI = (1 << 5) | (1 << 4),
PIIX_80C_SEC = (1 << 7) | (1 << 6),
/* controller IDs */
piix_pata_mwdma = 0, /* PIIX3 MWDMA only */
piix_pata_33, /* PIIX4 at 33Mhz */
ich_pata_33, /* ICH up to UDMA 33 only */
ich_pata_66, /* ICH up to 66 Mhz */
ich_pata_100, /* ICH up to UDMA 100 */
ich5_sata,
ich6_sata,
ich6_sata_ahci,
ich6m_sata_ahci,
ich8_sata_ahci,
ich8_2port_sata,
ich8m_apple_sata_ahci, /* locks up on second port enable */
tolapai_sata_ahci,
piix_pata_vmw, /* PIIX4 for VMware, spurious DMA_ERR */
/* constants for mapping table */
P0 = 0, /* port 0 */
P1 = 1, /* port 1 */
......@@ -149,6 +131,24 @@ enum {
PIIX_HOST_BROKEN_SUSPEND = (1 << 24),
};
enum piix_controller_ids {
/* controller IDs */
piix_pata_mwdma, /* PIIX3 MWDMA only */
piix_pata_33, /* PIIX4 at 33Mhz */
ich_pata_33, /* ICH up to UDMA 33 only */
ich_pata_66, /* ICH up to 66 Mhz */
ich_pata_100, /* ICH up to UDMA 100 */
ich5_sata,
ich6_sata,
ich6_sata_ahci,
ich6m_sata_ahci,
ich8_sata_ahci,
ich8_2port_sata,
ich8m_apple_sata_ahci, /* locks up on second port enable */
tolapai_sata_ahci,
piix_pata_vmw, /* PIIX4 for VMware, spurious DMA_ERR */
};
struct piix_map_db {
const u32 mask;
const u16 port_enable;
......@@ -157,6 +157,7 @@ struct piix_map_db {
struct piix_host_priv {
const int *map;
void __iomem *sidpr;
};
static int piix_init_one(struct pci_dev *pdev,
......@@ -167,6 +168,9 @@ static void piix_set_dmamode(struct ata_port *ap, struct ata_device *adev);
static void ich_set_dmamode(struct ata_port *ap, struct ata_device *adev);
static int ich_pata_cable_detect(struct ata_port *ap);
static u8 piix_vmw_bmdma_status(struct ata_port *ap);
static int piix_sidpr_scr_read(struct ata_port *ap, unsigned int reg, u32 *val);
static int piix_sidpr_scr_write(struct ata_port *ap, unsigned int reg, u32 val);
static void piix_sidpr_error_handler(struct ata_port *ap);
#ifdef CONFIG_PM
static int piix_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
static int piix_pci_device_resume(struct pci_dev *pdev);
......@@ -321,7 +325,6 @@ static const struct ata_port_operations piix_pata_ops = {
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.cable_detect = ata_cable_40wire,
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
.irq_on = ata_irq_on,
......@@ -353,7 +356,6 @@ static const struct ata_port_operations ich_pata_ops = {
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.cable_detect = ich_pata_cable_detect,
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
.irq_on = ata_irq_on,
......@@ -380,7 +382,6 @@ static const struct ata_port_operations piix_sata_ops = {
.error_handler = ata_bmdma_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
.irq_on = ata_irq_on,
......@@ -419,6 +420,35 @@ static const struct ata_port_operations piix_vmw_ops = {
.port_start = ata_port_start,
};
static const struct ata_port_operations piix_sidpr_sata_ops = {
.tf_load = ata_tf_load,
.tf_read = ata_tf_read,
.check_status = ata_check_status,
.exec_command = ata_exec_command,
.dev_select = ata_std_dev_select,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
.bmdma_stop = ata_bmdma_stop,
.bmdma_status = ata_bmdma_status,
.qc_prep = ata_qc_prep,
.qc_issue = ata_qc_issue_prot,
.data_xfer = ata_data_xfer,
.scr_read = piix_sidpr_scr_read,
.scr_write = piix_sidpr_scr_write,
.freeze = ata_bmdma_freeze,
.thaw = ata_bmdma_thaw,
.error_handler = piix_sidpr_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.irq_clear = ata_bmdma_irq_clear,
.irq_on = ata_irq_on,
.port_start = ata_port_start,
};
static const struct piix_map_db ich5_map_db = {
.mask = 0x7,
.port_enable = 0x3,
......@@ -526,7 +556,6 @@ static const struct piix_map_db *piix_map_db_table[] = {
static struct ata_port_info piix_port_info[] = {
[piix_pata_mwdma] = /* PIIX3 MWDMA only */
{
.sht = &piix_sht,
.flags = PIIX_PATA_FLAGS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
......@@ -535,7 +564,6 @@ static struct ata_port_info piix_port_info[] = {
[piix_pata_33] = /* PIIX4 at 33MHz */
{
.sht = &piix_sht,
.flags = PIIX_PATA_FLAGS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
......@@ -545,7 +573,6 @@ static struct ata_port_info piix_port_info[] = {
[ich_pata_33] = /* ICH0 - ICH at 33Mhz*/
{
.sht = &piix_sht,
.flags = PIIX_PATA_FLAGS,
.pio_mask = 0x1f, /* pio 0-4 */
.mwdma_mask = 0x06, /* Check: maybe 0x07 */
......@@ -555,7 +582,6 @@ static struct ata_port_info piix_port_info[] = {
[ich_pata_66] = /* ICH controllers up to 66MHz */
{
.sht = &piix_sht,
.flags = PIIX_PATA_FLAGS,
.pio_mask = 0x1f, /* pio 0-4 */
.mwdma_mask = 0x06, /* MWDMA0 is broken on chip */
......@@ -565,7 +591,6 @@ static struct ata_port_info piix_port_info[] = {
[ich_pata_100] =
{
.sht = &piix_sht,
.flags = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x06, /* mwdma1-2 */
......@@ -575,7 +600,6 @@ static struct ata_port_info piix_port_info[] = {
[ich5_sata] =
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
......@@ -585,8 +609,7 @@ static struct ata_port_info piix_port_info[] = {
[ich6_sata] =
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR,
.flags = PIIX_SATA_FLAGS,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = ATA_UDMA6,
......@@ -595,9 +618,7 @@ static struct ata_port_info piix_port_info[] = {
[ich6_sata_ahci] =
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
PIIX_FLAG_AHCI,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_AHCI,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = ATA_UDMA6,
......@@ -606,9 +627,7 @@ static struct ata_port_info piix_port_info[] = {
[ich6m_sata_ahci] =
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
PIIX_FLAG_AHCI,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_AHCI,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = ATA_UDMA6,
......@@ -617,9 +636,8 @@ static struct ata_port_info piix_port_info[] = {
[ich8_sata_ahci] =
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
PIIX_FLAG_AHCI,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_AHCI |
PIIX_FLAG_SIDPR,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = ATA_UDMA6,
......@@ -628,9 +646,8 @@ static struct ata_port_info piix_port_info[] = {
[ich8_2port_sata] =
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
PIIX_FLAG_AHCI,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_AHCI |
PIIX_FLAG_SIDPR,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = ATA_UDMA6,
......@@ -639,9 +656,7 @@ static struct ata_port_info piix_port_info[] = {
[tolapai_sata_ahci] =
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
PIIX_FLAG_AHCI,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_AHCI,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = ATA_UDMA6,
......@@ -650,9 +665,8 @@ static struct ata_port_info piix_port_info[] = {
[ich8m_apple_sata_ahci] =
{
.sht = &piix_sht,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_SCR |
PIIX_FLAG_AHCI,
.flags = PIIX_SATA_FLAGS | PIIX_FLAG_AHCI |
PIIX_FLAG_SIDPR,
.pio_mask = 0x1f, /* pio0-4 */
.mwdma_mask = 0x07, /* mwdma0-2 */
.udma_mask = ATA_UDMA6,
......@@ -1001,6 +1015,180 @@ static void ich_set_dmamode(struct ata_port *ap, struct ata_device *adev)
do_pata_set_dmamode(ap, adev, 1);
}
/*
* Serial ATA Index/Data Pair Superset Registers access
*
* Beginning from ICH8, there's a sane way to access SCRs using index
* and data register pair located at BAR5. This creates an
* interesting problem of mapping two SCRs to one port.
*
* Although they have separate SCRs, the master and slave aren't
* independent enough to be treated as separate links - e.g. softreset
* resets both. Also, there's no protocol defined for hard resetting
* singled device sharing the virtual port (no defined way to acquire
* device signature). This is worked around by merging the SCR values
* into one sensible value and requesting follow-up SRST after
* hardreset.
*
* SCR merging is perfomed in nibbles which is the unit contents in
* SCRs are organized. If two values are equal, the value is used.
* When they differ, merge table which lists precedence of possible
* values is consulted and the first match or the last entry when
* nothing matches is used. When there's no merge table for the
* specific nibble, value from the first port is used.
*/
static const int piix_sidx_map[] = {
[SCR_STATUS] = 0,
[SCR_ERROR] = 2,
[SCR_CONTROL] = 1,
};
static void piix_sidpr_sel(struct ata_device *dev, unsigned int reg)
{
struct ata_port *ap = dev->link->ap;
struct piix_host_priv *hpriv = ap->host->private_data;
iowrite32(((ap->port_no * 2 + dev->devno) << 8) | piix_sidx_map[reg],
hpriv->sidpr + PIIX_SIDPR_IDX);
}
static int piix_sidpr_read(struct ata_device *dev, unsigned int reg)
{
struct piix_host_priv *hpriv = dev->link->ap->host->private_data;
piix_sidpr_sel(dev, reg);
return ioread32(hpriv->sidpr + PIIX_SIDPR_DATA);
}
static void piix_sidpr_write(struct ata_device *dev, unsigned int reg, u32 val)
{
struct piix_host_priv *hpriv = dev->link->ap->host->private_data;
piix_sidpr_sel(dev, reg);
iowrite32(val, hpriv->sidpr + PIIX_SIDPR_DATA);
}
u32 piix_merge_scr(u32 val0, u32 val1, const int * const *merge_tbl)
{
u32 val = 0;
int i, mi;
for (i = 0, mi = 0; i < 32 / 4; i++) {
u8 c0 = (val0 >> (i * 4)) & 0xf;
u8 c1 = (val1 >> (i * 4)) & 0xf;
u8 merged = c0;
const int *cur;
/* if no merge preference, assume the first value */
cur = merge_tbl[mi];
if (!cur)
goto done;
mi++;
/* if two values equal, use it */
if (c0 == c1)
goto done;
/* choose the first match or the last from the merge table */
while (*cur != -1) {
if (c0 == *cur || c1 == *cur)
break;
cur++;
}
if (*cur == -1)
cur--;
merged = *cur;
done:
val |= merged << (i * 4);
}
return val;
}
static int piix_sidpr_scr_read(struct ata_port *ap, unsigned int reg, u32 *val)
{
const int * const sstatus_merge_tbl[] = {
/* DET */ (const int []){ 1, 3, 0, 4, 3, -1 },
/* SPD */ (const int []){ 2, 1, 0, -1 },
/* IPM */ (const int []){ 6, 2, 1, 0, -1 },
NULL,
};
const int * const scontrol_merge_tbl[] = {
/* DET */ (const int []){ 1, 0, 4, 0, -1 },
/* SPD */ (const int []){ 0, 2, 1, 0, -1 },
/* IPM */ (const int []){ 0, 1, 2, 3, 0, -1 },
NULL,
};
u32 v0, v1;
if (reg >= ARRAY_SIZE(piix_sidx_map))
return -EINVAL;
if (!(ap->flags & ATA_FLAG_SLAVE_POSS)) {
*val = piix_sidpr_read(&ap->link.device[0], reg);
return 0;
}
v0 = piix_sidpr_read(&ap->link.device[0], reg);
v1 = piix_sidpr_read(&ap->link.device[1], reg);
switch (reg) {
case SCR_STATUS:
*val = piix_merge_scr(v0, v1, sstatus_merge_tbl);
break;
case SCR_ERROR:
*val = v0 | v1;
break;
case SCR_CONTROL:
*val = piix_merge_scr(v0, v1, scontrol_merge_tbl);
break;
}
return 0;
}
static int piix_sidpr_scr_write(struct ata_port *ap, unsigned int reg, u32 val)
{
if (reg >= ARRAY_SIZE(piix_sidx_map))
return -EINVAL;
piix_sidpr_write(&ap->link.device[0], reg, val);
if (ap->flags & ATA_FLAG_SLAVE_POSS)
piix_sidpr_write(&ap->link.device[1], reg, val);
return 0;
}
static int piix_sidpr_hardreset(struct ata_link *link, unsigned int *class,
unsigned long deadline)
{
const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);
int rc;
/* do hardreset */
rc = sata_link_hardreset(link, timing, deadline);
if (rc) {
ata_link_printk(link, KERN_ERR,
"COMRESET failed (errno=%d)\n", rc);
return rc;
}
/* TODO: phy layer with polling, timeouts, etc. */
if (ata_link_offline(link)) {
*class = ATA_DEV_NONE;
return 0;
}
return -EAGAIN;
}
static void piix_sidpr_error_handler(struct ata_port *ap)
{
ata_bmdma_drive_eh(ap, ata_std_prereset, ata_std_softreset,
piix_sidpr_hardreset, ata_std_postreset);
}
#ifdef CONFIG_PM
static int piix_broken_suspend(void)
{
......@@ -1033,6 +1221,13 @@ static int piix_broken_suspend(void)
DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M5"),
},
},
{
.ident = "TECRA M6",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M6"),
},
},
{
.ident = "TECRA M7",
.matches = {
......@@ -1047,6 +1242,13 @@ static int piix_broken_suspend(void)
DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A8"),
},
},
{
.ident = "Satellite R20",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
DMI_MATCH(DMI_PRODUCT_NAME, "Satellite R20"),
},
},
{
.ident = "Satellite R25",
.matches = {
......@@ -1253,10 +1455,10 @@ static int __devinit piix_check_450nx_errata(struct pci_dev *ata_dev)
return no_piix_dma;
}
static void __devinit piix_init_pcs(struct pci_dev *pdev,
struct ata_port_info *pinfo,
static void __devinit piix_init_pcs(struct ata_host *host,
const struct piix_map_db *map_db)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
u16 pcs, new_pcs;
pci_read_config_word(pdev, ICH5_PCS, &pcs);
......@@ -1270,11 +1472,10 @@ static void __devinit piix_init_pcs(struct pci_dev *pdev,
}
}
static void __devinit piix_init_sata_map(struct pci_dev *pdev,
struct ata_port_info *pinfo,
const struct piix_map_db *map_db)
static const int *__devinit piix_init_sata_map(struct pci_dev *pdev,
struct ata_port_info *pinfo,
const struct piix_map_db *map_db)
{
struct piix_host_priv *hpriv = pinfo[0].private_data;
const int *map;
int i, invalid_map = 0;
u8 map_value;
......@@ -1298,7 +1499,6 @@ static void __devinit piix_init_sata_map(struct pci_dev *pdev,
case IDE:
WARN_ON((i & 1) || map[i + 1] != IDE);
pinfo[i / 2] = piix_port_info[ich_pata_100];
pinfo[i / 2].private_data = hpriv;
i++;
printk(" IDE IDE");
break;
......@@ -1316,7 +1516,33 @@ static void __devinit piix_init_sata_map(struct pci_dev *pdev,
dev_printk(KERN_ERR, &pdev->dev,
"invalid MAP value %u\n", map_value);
hpriv->map = map;
return map;
}
static void __devinit piix_init_sidpr(struct ata_host *host)
{
struct pci_dev *pdev = to_pci_dev(host->dev);
struct piix_host_priv *hpriv = host->private_data;
int i;
/* check for availability */
for (i = 0; i < 4; i++)
if (hpriv->map[i] == IDE)
return;
if (!(host->ports[0]->flags & PIIX_FLAG_SIDPR))
return;
if (pci_resource_start(pdev, PIIX_SIDPR_BAR) == 0 ||
pci_resource_len(pdev, PIIX_SIDPR_BAR) != PIIX_SIDPR_LEN)
return;
if (pcim_iomap_regions(pdev, 1 << PIIX_SIDPR_BAR, DRV_NAME))
return;
hpriv->sidpr = pcim_iomap_table(pdev)[PIIX_SIDPR_BAR];
host->ports[0]->ops = &piix_sidpr_sata_ops;
host->ports[1]->ops = &piix_sidpr_sata_ops;
}
static void piix_iocfg_bit18_quirk(struct pci_dev *pdev)
......@@ -1375,8 +1601,10 @@ static int piix_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
struct device *dev = &pdev->dev;
struct ata_port_info port_info[2];
const struct ata_port_info *ppi[] = { &port_info[0], &port_info[1] };
struct piix_host_priv *hpriv;
unsigned long port_flags;
struct ata_host *host;
struct piix_host_priv *hpriv;
int rc;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev,
......@@ -1386,17 +1614,31 @@ static int piix_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (!in_module_init)
return -ENODEV;
port_info[0] = piix_port_info[ent->driver_data];
port_info[1] = piix_port_info[ent->driver_data];
port_flags = port_info[0].flags;
/* enable device and prepare host */
rc = pcim_enable_device(pdev);
if (rc)
return rc;
/* SATA map init can change port_info, do it before prepping host */
hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
if (!hpriv)
return -ENOMEM;
port_info[0] = piix_port_info[ent->driver_data];
port_info[1] = piix_port_info[ent->driver_data];
port_info[0].private_data = hpriv;
port_info[1].private_data = hpriv;
if (port_flags & ATA_FLAG_SATA)
hpriv->map = piix_init_sata_map(pdev, port_info,
piix_map_db_table[ent->driver_data]);
port_flags = port_info[0].flags;
rc = ata_pci_prepare_sff_host(pdev, ppi, &host);
if (rc)
return rc;
host->private_data = hpriv;
/* initialize controller */
if (port_flags & PIIX_FLAG_AHCI) {
u8 tmp;
pci_read_config_byte(pdev, PIIX_SCC, &tmp);
......@@ -1407,12 +1649,9 @@ static int piix_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
}
}
/* Initialize SATA map */
if (port_flags & ATA_FLAG_SATA) {
piix_init_sata_map(pdev, port_info,
piix_map_db_table[ent->driver_data]);
piix_init_pcs(pdev, port_info,
piix_map_db_table[ent->driver_data]);
piix_init_pcs(host, piix_map_db_table[ent->driver_data]);
piix_init_sidpr(host);
}
/* apply IOCFG bit18 quirk */
......@@ -1431,12 +1670,14 @@ static int piix_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
/* This writes into the master table but it does not
really matter for this errata as we will apply it to
all the PIIX devices on the board */
port_info[0].mwdma_mask = 0;
port_info[0].udma_mask = 0;
port_info[1].mwdma_mask = 0;
port_info[1].udma_mask = 0;
host->ports[0]->mwdma_mask = 0;
host->ports[0]->udma_mask = 0;
host->ports[1]->mwdma_mask = 0;
host->ports[1]->udma_mask = 0;
}
return ata_pci_init_one(pdev, ppi);
pci_set_master(pdev);
return ata_pci_activate_sff_host(host, ata_interrupt, &piix_sht);
}
static int __init piix_init(void)
......
drivers/ata/libata-acpi.c
浏览文件 @ 2ba14a01
......@@ -441,41 +441,78 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf)
return rc;
}
/**
* ata_acpi_gtm_xfermode - determine xfermode from GTM parameter
* @dev: target device
* @gtm: GTM parameter to use
*
* Determine xfermask for @dev from @gtm.
*
* LOCKING:
* None.
*
* RETURNS:
* Determined xfermask.
*/
unsigned long ata_acpi_gtm_xfermask(struct ata_device *dev,
const struct ata_acpi_gtm *gtm)
{
unsigned long xfer_mask = 0;
unsigned int type;
int unit;
u8 mode;
/* we always use the 0 slot for crap hardware */
unit = dev->devno;
if (!(gtm->flags & 0x10))
unit = 0;
/* PIO */
mode = ata_timing_cycle2mode(ATA_SHIFT_PIO, gtm->drive[unit].pio);
xfer_mask |= ata_xfer_mode2mask(mode);
/* See if we have MWDMA or UDMA data. We don't bother with
* MWDMA if UDMA is available as this means the BIOS set UDMA
* and our error changedown if it works is UDMA to PIO anyway.
*/
if (!(gtm->flags & (1 << (2 * unit))))
type = ATA_SHIFT_MWDMA;
else
type = ATA_SHIFT_UDMA;
mode = ata_timing_cycle2mode(type, gtm->drive[unit].dma);
xfer_mask |= ata_xfer_mode2mask(mode);
return xfer_mask;
}
EXPORT_SYMBOL_GPL(ata_acpi_gtm_xfermask);
/**
* ata_acpi_cbl_80wire - Check for 80 wire cable
* @ap: Port to check
* @gtm: GTM data to use
*
* Return 1 if the ACPI mode data for this port indicates the BIOS selected
* an 80wire mode.
* Return 1 if the @gtm indicates the BIOS selected an 80wire mode.
*/
int ata_acpi_cbl_80wire(struct ata_port *ap)
int ata_acpi_cbl_80wire(struct ata_port *ap, const struct ata_acpi_gtm *gtm)
{
const struct ata_acpi_gtm *gtm = ata_acpi_init_gtm(ap);
int valid = 0;
struct ata_device *dev;
if (!gtm)
return 0;
ata_link_for_each_dev(dev, &ap->link) {
unsigned long xfer_mask, udma_mask;
if (!ata_dev_enabled(dev))
continue;
xfer_mask = ata_acpi_gtm_xfermask(dev, gtm);
ata_unpack_xfermask(xfer_mask, NULL, NULL, &udma_mask);
if (udma_mask & ~ATA_UDMA_MASK_40C)
return 1;
}
/* Split timing, DMA enabled */
if ((gtm->flags & 0x11) == 0x11 && gtm->drive[0].dma < 55)
valid |= 1;
if ((gtm->flags & 0x14) == 0x14 && gtm->drive[1].dma < 55)
valid |= 2;
/* Shared timing, DMA enabled */
if ((gtm->flags & 0x11) == 0x01 && gtm->drive[0].dma < 55)
valid |= 1;
if ((gtm->flags & 0x14) == 0x04 && gtm->drive[0].dma < 55)
valid |= 2;
/* Drive check */
if ((valid & 1) && ata_dev_enabled(&ap->link.device[0]))
return 1;
if ((valid & 2) && ata_dev_enabled(&ap->link.device[1]))
return 1;
return 0;
}
EXPORT_SYMBOL_GPL(ata_acpi_cbl_80wire);
static void ata_acpi_gtf_to_tf(struct ata_device *dev,
......@@ -775,6 +812,36 @@ void ata_acpi_on_resume(struct ata_port *ap)
}
}
/**
* ata_acpi_set_state - set the port power state
* @ap: target ATA port
* @state: state, on/off
*
* This function executes the _PS0/_PS3 ACPI method to set the power state.
* ACPI spec requires _PS0 when IDE power on and _PS3 when power off
*/
void ata_acpi_set_state(struct ata_port *ap, pm_message_t state)
{
struct ata_device *dev;
if (!ap->acpi_handle || (ap->flags & ATA_FLAG_ACPI_SATA))
return;
/* channel first and then drives for power on and vica versa
for power off */
if (state.event == PM_EVENT_ON)
acpi_bus_set_power(ap->acpi_handle, ACPI_STATE_D0);
ata_link_for_each_dev(dev, &ap->link) {
if (dev->acpi_handle && ata_dev_enabled(dev))
acpi_bus_set_power(dev->acpi_handle,
state.event == PM_EVENT_ON ?
ACPI_STATE_D0 : ACPI_STATE_D3);
}
if (state.event != PM_EVENT_ON)
acpi_bus_set_power(ap->acpi_handle, ACPI_STATE_D3);
}
/**
* ata_acpi_on_devcfg - ATA ACPI hook called on device donfiguration
* @dev: target ATA device
......
drivers/ata/libata-core.c
浏览文件 @ 2ba14a01
此差异已折叠。
drivers/ata/libata-eh.c
浏览文件 @ 2ba14a01
......@@ -46,9 +46,26 @@
#include "libata.h"
enum {
/* speed down verdicts */
ATA_EH_SPDN_NCQ_OFF = (1 << 0),
ATA_EH_SPDN_SPEED_DOWN = (1 << 1),
ATA_EH_SPDN_FALLBACK_TO_PIO = (1 << 2),
ATA_EH_SPDN_KEEP_ERRORS = (1 << 3),
/* error flags */
ATA_EFLAG_IS_IO = (1 << 0),
ATA_EFLAG_DUBIOUS_XFER = (1 << 1),
/* error categories */
ATA_ECAT_NONE = 0,
ATA_ECAT_ATA_BUS = 1,
ATA_ECAT_TOUT_HSM = 2,
ATA_ECAT_UNK_DEV = 3,
ATA_ECAT_DUBIOUS_NONE = 4,
ATA_ECAT_DUBIOUS_ATA_BUS = 5,
ATA_ECAT_DUBIOUS_TOUT_HSM = 6,
ATA_ECAT_DUBIOUS_UNK_DEV = 7,
ATA_ECAT_NR = 8,
};
/* Waiting in ->prereset can never be reliable. It's sometimes nice
......@@ -213,12 +230,13 @@ void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset,
if (offset < 0)
ata_port_desc(ap, "%s %s%llu@0x%llx", name, type, len, start);
else
ata_port_desc(ap, "%s 0x%llx", name, start + offset);
ata_port_desc(ap, "%s 0x%llx", name,
start + (unsigned long long)offset);
}
#endif /* CONFIG_PCI */
static void ata_ering_record(struct ata_ering *ering, int is_io,
static void ata_ering_record(struct ata_ering *ering, unsigned int eflags,
unsigned int err_mask)
{
struct ata_ering_entry *ent;
......@@ -229,11 +247,20 @@ static void ata_ering_record(struct ata_ering *ering, int is_io,
ering->cursor %= ATA_ERING_SIZE;
ent = &ering->ring[ering->cursor];
ent->is_io = is_io;
ent->eflags = eflags;
ent->err_mask = err_mask;
ent->timestamp = get_jiffies_64();
}
static struct ata_ering_entry *ata_ering_top(struct ata_ering *ering)
{
struct ata_ering_entry *ent = &ering->ring[ering->cursor];
if (ent->err_mask)
return ent;
return NULL;
}
static void ata_ering_clear(struct ata_ering *ering)
{
memset(ering, 0, sizeof(*ering));
......@@ -445,9 +472,20 @@ void ata_scsi_error(struct Scsi_Host *host)
spin_lock_irqsave(ap->lock, flags);
__ata_port_for_each_link(link, ap) {
struct ata_eh_context *ehc = &link->eh_context;
struct ata_device *dev;
memset(&link->eh_context, 0, sizeof(link->eh_context));
link->eh_context.i = link->eh_info;
memset(&link->eh_info, 0, sizeof(link->eh_info));
ata_link_for_each_dev(dev, link) {
int devno = dev->devno;
ehc->saved_xfer_mode[devno] = dev->xfer_mode;
if (ata_ncq_enabled(dev))
ehc->saved_ncq_enabled |= 1 << devno;
}
}
ap->pflags |= ATA_PFLAG_EH_IN_PROGRESS;
......@@ -1260,10 +1298,10 @@ static unsigned int atapi_eh_request_sense(struct ata_queued_cmd *qc)
/* is it pointless to prefer PIO for "safety reasons"? */
if (ap->flags & ATA_FLAG_PIO_DMA) {
tf.protocol = ATA_PROT_ATAPI_DMA;
tf.protocol = ATAPI_PROT_DMA;
tf.feature |= ATAPI_PKT_DMA;
} else {
tf.protocol = ATA_PROT_ATAPI;
tf.protocol = ATAPI_PROT_PIO;
tf.lbam = SCSI_SENSE_BUFFERSIZE;
tf.lbah = 0;
}
......@@ -1451,20 +1489,29 @@ static unsigned int ata_eh_analyze_tf(struct ata_queued_cmd *qc,
return action;
}
static int ata_eh_categorize_error(int is_io, unsigned int err_mask)
static int ata_eh_categorize_error(unsigned int eflags, unsigned int err_mask,
int *xfer_ok)
{
int base = 0;
if (!(eflags & ATA_EFLAG_DUBIOUS_XFER))
*xfer_ok = 1;
if (!*xfer_ok)
base = ATA_ECAT_DUBIOUS_NONE;
if (err_mask & AC_ERR_ATA_BUS)
return 1;
return base + ATA_ECAT_ATA_BUS;
if (err_mask & AC_ERR_TIMEOUT)
return 2;
return base + ATA_ECAT_TOUT_HSM;
if (is_io) {
if (eflags & ATA_EFLAG_IS_IO) {
if (err_mask & AC_ERR_HSM)
return 2;
return base + ATA_ECAT_TOUT_HSM;
if ((err_mask &
(AC_ERR_DEV|AC_ERR_MEDIA|AC_ERR_INVALID)) == AC_ERR_DEV)
return 3;
return base + ATA_ECAT_UNK_DEV;
}
return 0;
......@@ -1472,18 +1519,22 @@ static int ata_eh_categorize_error(int is_io, unsigned int err_mask)
struct speed_down_verdict_arg {
u64 since;
int nr_errors[4];
int xfer_ok;
int nr_errors[ATA_ECAT_NR];
};
static int speed_down_verdict_cb(struct ata_ering_entry *ent, void *void_arg)
{
struct speed_down_verdict_arg *arg = void_arg;
int cat = ata_eh_categorize_error(ent->is_io, ent->err_mask);
int cat;
if (ent->timestamp < arg->since)
return -1;
cat = ata_eh_categorize_error(ent->eflags, ent->err_mask,
&arg->xfer_ok);
arg->nr_errors[cat]++;
return 0;
}
......@@ -1495,22 +1546,48 @@ static int speed_down_verdict_cb(struct ata_ering_entry *ent, void *void_arg)
* whether NCQ needs to be turned off, transfer speed should be
* stepped down, or falling back to PIO is necessary.
*
* Cat-1 is ATA_BUS error for any command.
* ECAT_ATA_BUS : ATA_BUS error for any command
*
* ECAT_TOUT_HSM : TIMEOUT for any command or HSM violation for
* IO commands
*
* ECAT_UNK_DEV : Unknown DEV error for IO commands
*
* ECAT_DUBIOUS_* : Identical to above three but occurred while
* data transfer hasn't been verified.
*
* Verdicts are
*
* NCQ_OFF : Turn off NCQ.
*
* SPEED_DOWN : Speed down transfer speed but don't fall back
* to PIO.
*
* FALLBACK_TO_PIO : Fall back to PIO.
*
* Even if multiple verdicts are returned, only one action is
* taken per error. An action triggered by non-DUBIOUS errors
* clears ering, while one triggered by DUBIOUS_* errors doesn't.
* This is to expedite speed down decisions right after device is
* initially configured.
*
* Cat-2 is TIMEOUT for any command or HSM violation for known
* supported commands.
* The followings are speed down rules. #1 and #2 deal with
* DUBIOUS errors.
*
* Cat-3 is is unclassified DEV error for known supported
* command.
* 1. If more than one DUBIOUS_ATA_BUS or DUBIOUS_TOUT_HSM errors
* occurred during last 5 mins, SPEED_DOWN and FALLBACK_TO_PIO.
*
* NCQ needs to be turned off if there have been more than 3
* Cat-2 + Cat-3 errors during last 10 minutes.
* 2. If more than one DUBIOUS_TOUT_HSM or DUBIOUS_UNK_DEV errors
* occurred during last 5 mins, NCQ_OFF.
*
* Speed down is necessary if there have been more than 3 Cat-1 +
* Cat-2 errors or 10 Cat-3 errors during last 10 minutes.
* 3. If more than 8 ATA_BUS, TOUT_HSM or UNK_DEV errors
* ocurred during last 5 mins, FALLBACK_TO_PIO
*
* Falling back to PIO mode is necessary if there have been more
* than 10 Cat-1 + Cat-2 + Cat-3 errors during last 5 minutes.
* 4. If more than 3 TOUT_HSM or UNK_DEV errors occurred
* during last 10 mins, NCQ_OFF.
*
* 5. If more than 3 ATA_BUS or TOUT_HSM errors, or more than 6
* UNK_DEV errors occurred during last 10 mins, SPEED_DOWN.
*
* LOCKING:
* Inherited from caller.
......@@ -1525,23 +1602,38 @@ static unsigned int ata_eh_speed_down_verdict(struct ata_device *dev)
struct speed_down_verdict_arg arg;
unsigned int verdict = 0;
/* scan past 10 mins of error history */
/* scan past 5 mins of error history */
memset(&arg, 0, sizeof(arg));
arg.since = j64 - min(j64, j10mins);
arg.since = j64 - min(j64, j5mins);
ata_ering_map(&dev->ering, speed_down_verdict_cb, &arg);
if (arg.nr_errors[2] + arg.nr_errors[3] > 3)
verdict |= ATA_EH_SPDN_NCQ_OFF;
if (arg.nr_errors[1] + arg.nr_errors[2] > 3 || arg.nr_errors[3] > 10)
verdict |= ATA_EH_SPDN_SPEED_DOWN;
if (arg.nr_errors[ATA_ECAT_DUBIOUS_ATA_BUS] +
arg.nr_errors[ATA_ECAT_DUBIOUS_TOUT_HSM] > 1)
verdict |= ATA_EH_SPDN_SPEED_DOWN |
ATA_EH_SPDN_FALLBACK_TO_PIO | ATA_EH_SPDN_KEEP_ERRORS;
/* scan past 3 mins of error history */
if (arg.nr_errors[ATA_ECAT_DUBIOUS_TOUT_HSM] +
arg.nr_errors[ATA_ECAT_DUBIOUS_UNK_DEV] > 1)
verdict |= ATA_EH_SPDN_NCQ_OFF | ATA_EH_SPDN_KEEP_ERRORS;
if (arg.nr_errors[ATA_ECAT_ATA_BUS] +
arg.nr_errors[ATA_ECAT_TOUT_HSM] +
arg.nr_errors[ATA_ECAT_UNK_DEV] > 6)
verdict |= ATA_EH_SPDN_FALLBACK_TO_PIO;
/* scan past 10 mins of error history */
memset(&arg, 0, sizeof(arg));
arg.since = j64 - min(j64, j5mins);
arg.since = j64 - min(j64, j10mins);
ata_ering_map(&dev->ering, speed_down_verdict_cb, &arg);
if (arg.nr_errors[1] + arg.nr_errors[2] + arg.nr_errors[3] > 10)
verdict |= ATA_EH_SPDN_FALLBACK_TO_PIO;
if (arg.nr_errors[ATA_ECAT_TOUT_HSM] +
arg.nr_errors[ATA_ECAT_UNK_DEV] > 3)
verdict |= ATA_EH_SPDN_NCQ_OFF;
if (arg.nr_errors[ATA_ECAT_ATA_BUS] +
arg.nr_errors[ATA_ECAT_TOUT_HSM] > 3 ||
arg.nr_errors[ATA_ECAT_UNK_DEV] > 6)
verdict |= ATA_EH_SPDN_SPEED_DOWN;
return verdict;
}
......@@ -1549,7 +1641,7 @@ static unsigned int ata_eh_speed_down_verdict(struct ata_device *dev)
/**
* ata_eh_speed_down - record error and speed down if necessary
* @dev: Failed device
* @is_io: Did the device fail during normal IO?
* @eflags: mask of ATA_EFLAG_* flags
* @err_mask: err_mask of the error
*
* Record error and examine error history to determine whether
......@@ -1563,18 +1655,20 @@ static unsigned int ata_eh_speed_down_verdict(struct ata_device *dev)
* RETURNS:
* Determined recovery action.
*/
static unsigned int ata_eh_speed_down(struct ata_device *dev, int is_io,
unsigned int err_mask)
static unsigned int ata_eh_speed_down(struct ata_device *dev,
unsigned int eflags, unsigned int err_mask)
{
struct ata_link *link = dev->link;
int xfer_ok = 0;
unsigned int verdict;
unsigned int action = 0;
/* don't bother if Cat-0 error */
if (ata_eh_categorize_error(is_io, err_mask) == 0)
if (ata_eh_categorize_error(eflags, err_mask, &xfer_ok) == 0)
return 0;
/* record error and determine whether speed down is necessary */
ata_ering_record(&dev->ering, is_io, err_mask);
ata_ering_record(&dev->ering, eflags, err_mask);
verdict = ata_eh_speed_down_verdict(dev);
/* turn off NCQ? */
......@@ -1590,7 +1684,7 @@ static unsigned int ata_eh_speed_down(struct ata_device *dev, int is_io,
/* speed down? */
if (verdict & ATA_EH_SPDN_SPEED_DOWN) {
/* speed down SATA link speed if possible */
if (sata_down_spd_limit(dev->link) == 0) {
if (sata_down_spd_limit(link) == 0) {
action |= ATA_EH_HARDRESET;
goto done;
}
......@@ -1618,10 +1712,10 @@ static unsigned int ata_eh_speed_down(struct ata_device *dev, int is_io,
}
/* Fall back to PIO? Slowing down to PIO is meaningless for
* SATA. Consider it only for PATA.
* SATA ATA devices. Consider it only for PATA and SATAPI.
*/
if ((verdict & ATA_EH_SPDN_FALLBACK_TO_PIO) && (dev->spdn_cnt >= 2) &&
(dev->link->ap->cbl != ATA_CBL_SATA) &&
(link->ap->cbl != ATA_CBL_SATA || dev->class == ATA_DEV_ATAPI) &&
(dev->xfer_shift != ATA_SHIFT_PIO)) {
if (ata_down_xfermask_limit(dev, ATA_DNXFER_FORCE_PIO) == 0) {
dev->spdn_cnt = 0;
......@@ -1633,7 +1727,8 @@ static unsigned int ata_eh_speed_down(struct ata_device *dev, int is_io,
return 0;
done:
/* device has been slowed down, blow error history */
ata_ering_clear(&dev->ering);
if (!(verdict & ATA_EH_SPDN_KEEP_ERRORS))
ata_ering_clear(&dev->ering);
return action;
}
......@@ -1653,8 +1748,8 @@ static void ata_eh_link_autopsy(struct ata_link *link)
struct ata_port *ap = link->ap;
struct ata_eh_context *ehc = &link->eh_context;
struct ata_device *dev;
unsigned int all_err_mask = 0;
int tag, is_io = 0;
unsigned int all_err_mask = 0, eflags = 0;
int tag;
u32 serror;
int rc;
......@@ -1713,15 +1808,15 @@ static void ata_eh_link_autopsy(struct ata_link *link)
ehc->i.dev = qc->dev;
all_err_mask |= qc->err_mask;
if (qc->flags & ATA_QCFLAG_IO)
is_io = 1;
eflags |= ATA_EFLAG_IS_IO;
}
/* enforce default EH actions */
if (ap->pflags & ATA_PFLAG_FROZEN ||
all_err_mask & (AC_ERR_HSM | AC_ERR_TIMEOUT))
ehc->i.action |= ATA_EH_SOFTRESET;
else if ((is_io && all_err_mask) ||
(!is_io && (all_err_mask & ~AC_ERR_DEV)))
else if (((eflags & ATA_EFLAG_IS_IO) && all_err_mask) ||
(!(eflags & ATA_EFLAG_IS_IO) && (all_err_mask & ~AC_ERR_DEV)))
ehc->i.action |= ATA_EH_REVALIDATE;
/* If we have offending qcs and the associated failed device,
......@@ -1743,8 +1838,11 @@ static void ata_eh_link_autopsy(struct ata_link *link)
ata_dev_enabled(link->device))))
dev = link->device;
if (dev)
ehc->i.action |= ata_eh_speed_down(dev, is_io, all_err_mask);
if (dev) {
if (dev->flags & ATA_DFLAG_DUBIOUS_XFER)
eflags |= ATA_EFLAG_DUBIOUS_XFER;
ehc->i.action |= ata_eh_speed_down(dev, eflags, all_err_mask);
}
DPRINTK("EXIT\n");
}
......@@ -1880,8 +1978,8 @@ static void ata_eh_link_report(struct ata_link *link)
[ATA_PROT_PIO] = "pio",
[ATA_PROT_DMA] = "dma",
[ATA_PROT_NCQ] = "ncq",
[ATA_PROT_ATAPI] = "pio",
[ATA_PROT_ATAPI_DMA] = "dma",
[ATAPI_PROT_PIO] = "pio",
[ATAPI_PROT_DMA] = "dma",
};
snprintf(data_buf, sizeof(data_buf), " %s %u %s",
......@@ -1889,7 +1987,7 @@ static void ata_eh_link_report(struct ata_link *link)
dma_str[qc->dma_dir]);
}
if (is_atapi_taskfile(&qc->tf))
if (ata_is_atapi(qc->tf.protocol))
snprintf(cdb_buf, sizeof(cdb_buf),
"cdb %02x %02x %02x %02x %02x %02x %02x %02x "
"%02x %02x %02x %02x %02x %02x %02x %02x\n ",
......@@ -2329,6 +2427,58 @@ static int ata_eh_revalidate_and_attach(struct ata_link *link,
return rc;
}
/**
* ata_set_mode - Program timings and issue SET FEATURES - XFER
* @link: link on which timings will be programmed
* @r_failed_dev: out paramter for failed device
*
* Set ATA device disk transfer mode (PIO3, UDMA6, etc.). If
* ata_set_mode() fails, pointer to the failing device is
* returned in @r_failed_dev.
*
* LOCKING:
* PCI/etc. bus probe sem.
*
* RETURNS:
* 0 on success, negative errno otherwise
*/
int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
{
struct ata_port *ap = link->ap;
struct ata_device *dev;
int rc;
/* if data transfer is verified, clear DUBIOUS_XFER on ering top */
ata_link_for_each_dev(dev, link) {
if (!(dev->flags & ATA_DFLAG_DUBIOUS_XFER)) {
struct ata_ering_entry *ent;
ent = ata_ering_top(&dev->ering);
if (ent)
ent->eflags &= ~ATA_EFLAG_DUBIOUS_XFER;
}
}
/* has private set_mode? */
if (ap->ops->set_mode)
rc = ap->ops->set_mode(link, r_failed_dev);
else
rc = ata_do_set_mode(link, r_failed_dev);
/* if transfer mode has changed, set DUBIOUS_XFER on device */
ata_link_for_each_dev(dev, link) {
struct ata_eh_context *ehc = &link->eh_context;
u8 saved_xfer_mode = ehc->saved_xfer_mode[dev->devno];
u8 saved_ncq = !!(ehc->saved_ncq_enabled & (1 << dev->devno));
if (dev->xfer_mode != saved_xfer_mode ||
ata_ncq_enabled(dev) != saved_ncq)
dev->flags |= ATA_DFLAG_DUBIOUS_XFER;
}
return rc;
}
static int ata_link_nr_enabled(struct ata_link *link)
{
struct ata_device *dev;
......@@ -2375,6 +2525,24 @@ static int ata_eh_skip_recovery(struct ata_link *link)
return 1;
}
static int ata_eh_schedule_probe(struct ata_device *dev)
{
struct ata_eh_context *ehc = &dev->link->eh_context;
if (!(ehc->i.probe_mask & (1 << dev->devno)) ||
(ehc->did_probe_mask & (1 << dev->devno)))
return 0;
ata_eh_detach_dev(dev);
ata_dev_init(dev);
ehc->did_probe_mask |= (1 << dev->devno);
ehc->i.action |= ATA_EH_SOFTRESET;
ehc->saved_xfer_mode[dev->devno] = 0;
ehc->saved_ncq_enabled &= ~(1 << dev->devno);
return 1;
}
static int ata_eh_handle_dev_fail(struct ata_device *dev, int err)
{
struct ata_eh_context *ehc = &dev->link->eh_context;
......@@ -2406,16 +2574,9 @@ static int ata_eh_handle_dev_fail(struct ata_device *dev, int err)
if (ata_link_offline(dev->link))
ata_eh_detach_dev(dev);
/* probe if requested */
if ((ehc->i.probe_mask & (1 << dev->devno)) &&
!(ehc->did_probe_mask & (1 << dev->devno))) {
ata_eh_detach_dev(dev);
ata_dev_init(dev);
/* schedule probe if necessary */
if (ata_eh_schedule_probe(dev))
ehc->tries[dev->devno] = ATA_EH_DEV_TRIES;
ehc->did_probe_mask |= (1 << dev->devno);
ehc->i.action |= ATA_EH_SOFTRESET;
}
return 1;
} else {
......@@ -2492,14 +2653,9 @@ int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
if (dev->flags & ATA_DFLAG_DETACH)
ata_eh_detach_dev(dev);
if (!ata_dev_enabled(dev) &&
((ehc->i.probe_mask & (1 << dev->devno)) &&
!(ehc->did_probe_mask & (1 << dev->devno)))) {
ata_eh_detach_dev(dev);
ata_dev_init(dev);
ehc->did_probe_mask |= (1 << dev->devno);
ehc->i.action |= ATA_EH_SOFTRESET;
}
/* schedule probe if necessary */
if (!ata_dev_enabled(dev))
ata_eh_schedule_probe(dev);
}
}
......@@ -2747,6 +2903,7 @@ static void ata_eh_handle_port_suspend(struct ata_port *ap)
if (ap->ops->port_suspend)
rc = ap->ops->port_suspend(ap, ap->pm_mesg);
ata_acpi_set_state(ap, PMSG_SUSPEND);
out:
/* report result */
spin_lock_irqsave(ap->lock, flags);
......@@ -2792,6 +2949,8 @@ static void ata_eh_handle_port_resume(struct ata_port *ap)
WARN_ON(!(ap->pflags & ATA_PFLAG_SUSPENDED));
ata_acpi_set_state(ap, PMSG_ON);
if (ap->ops->port_resume)
rc = ap->ops->port_resume(ap);
......
drivers/ata/libata-scsi.c
浏览文件 @ 2ba14a01
......@@ -517,7 +517,7 @@ static struct ata_queued_cmd *ata_scsi_qc_new(struct ata_device *dev,
qc->scsicmd = cmd;
qc->scsidone = done;
qc->__sg = scsi_sglist(cmd);
qc->sg = scsi_sglist(cmd);
qc->n_elem = scsi_sg_count(cmd);
} else {
cmd->result = (DID_OK << 16) | (QUEUE_FULL << 1);
......@@ -2210,7 +2210,7 @@ unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
/* sector size */
ATA_SCSI_RBUF_SET(6, ATA_SECT_SIZE >> 8);
ATA_SCSI_RBUF_SET(7, ATA_SECT_SIZE);
ATA_SCSI_RBUF_SET(7, ATA_SECT_SIZE & 0xff);
} else {
/* sector count, 64-bit */
ATA_SCSI_RBUF_SET(0, last_lba >> (8 * 7));
......@@ -2224,7 +2224,7 @@ unsigned int ata_scsiop_read_cap(struct ata_scsi_args *args, u8 *rbuf,
/* sector size */
ATA_SCSI_RBUF_SET(10, ATA_SECT_SIZE >> 8);
ATA_SCSI_RBUF_SET(11, ATA_SECT_SIZE);
ATA_SCSI_RBUF_SET(11, ATA_SECT_SIZE & 0xff);
}
return 0;
......@@ -2331,7 +2331,7 @@ static void atapi_request_sense(struct ata_queued_cmd *qc)
DPRINTK("ATAPI request sense\n");
/* FIXME: is this needed? */
memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
ap->ops->tf_read(ap, &qc->tf);
......@@ -2341,7 +2341,9 @@ static void atapi_request_sense(struct ata_queued_cmd *qc)
ata_qc_reinit(qc);
ata_sg_init_one(qc, cmd->sense_buffer, sizeof(cmd->sense_buffer));
/* setup sg table and init transfer direction */
sg_init_one(&qc->sgent, cmd->sense_buffer, SCSI_SENSE_BUFFERSIZE);
ata_sg_init(qc, &qc->sgent, 1);
qc->dma_dir = DMA_FROM_DEVICE;
memset(&qc->cdb, 0, qc->dev->cdb_len);
......@@ -2352,10 +2354,10 @@ static void atapi_request_sense(struct ata_queued_cmd *qc)
qc->tf.command = ATA_CMD_PACKET;
if (ata_pio_use_silly(ap)) {
qc->tf.protocol = ATA_PROT_ATAPI_DMA;
qc->tf.protocol = ATAPI_PROT_DMA;
qc->tf.feature |= ATAPI_PKT_DMA;
} else {
qc->tf.protocol = ATA_PROT_ATAPI;
qc->tf.protocol = ATAPI_PROT_PIO;
qc->tf.lbam = SCSI_SENSE_BUFFERSIZE;
qc->tf.lbah = 0;
}
......@@ -2526,12 +2528,12 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
if (using_pio || nodata) {
/* no data, or PIO data xfer */
if (nodata)
qc->tf.protocol = ATA_PROT_ATAPI_NODATA;
qc->tf.protocol = ATAPI_PROT_NODATA;
else
qc->tf.protocol = ATA_PROT_ATAPI;
qc->tf.protocol = ATAPI_PROT_PIO;
} else {
/* DMA data xfer */
qc->tf.protocol = ATA_PROT_ATAPI_DMA;
qc->tf.protocol = ATAPI_PROT_DMA;
qc->tf.feature |= ATAPI_PKT_DMA;
if (atapi_dmadir && (scmd->sc_data_direction != DMA_TO_DEVICE))
......@@ -2690,6 +2692,24 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
if ((tf->protocol = ata_scsi_map_proto(cdb[1])) == ATA_PROT_UNKNOWN)
goto invalid_fld;
/*
* Filter TPM commands by default. These provide an
* essentially uncontrolled encrypted "back door" between
* applications and the disk. Set libata.allow_tpm=1 if you
* have a real reason for wanting to use them. This ensures
* that installed software cannot easily mess stuff up without
* user intent. DVR type users will probably ship with this enabled
* for movie content management.
*
* Note that for ATA8 we can issue a DCS change and DCS freeze lock
* for this and should do in future but that it is not sufficient as
* DCS is an optional feature set. Thus we also do the software filter
* so that we comply with the TC consortium stated goal that the user
* can turn off TC features of their system.
*/
if (tf->command >= 0x5C && tf->command <= 0x5F && !libata_allow_tpm)
goto invalid_fld;
/* We may not issue DMA commands if no DMA mode is set */
if (tf->protocol == ATA_PROT_DMA && dev->dma_mode == 0)
goto invalid_fld;
......
drivers/ata/libata-sff.c
浏览文件 @ 2ba14a01
......@@ -147,7 +147,9 @@ void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf)
* @tf: ATA taskfile register set for storing input
*
* Reads ATA taskfile registers for currently-selected device
* into @tf.
* into @tf. Assumes the device has a fully SFF compliant task file
* layout and behaviour. If you device does not (eg has a different
* status method) then you will need to provide a replacement tf_read
*
* LOCKING:
* Inherited from caller.
......@@ -156,7 +158,7 @@ void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
{
struct ata_ioports *ioaddr = &ap->ioaddr;
tf->command = ata_chk_status(ap);
tf->command = ata_check_status(ap);
tf->feature = ioread8(ioaddr->error_addr);
tf->nsect = ioread8(ioaddr->nsect_addr);
tf->lbal = ioread8(ioaddr->lbal_addr);
......@@ -415,7 +417,7 @@ void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset,
ap->hsm_task_state = HSM_ST_IDLE;
if (qc && (qc->tf.protocol == ATA_PROT_DMA ||
qc->tf.protocol == ATA_PROT_ATAPI_DMA)) {
qc->tf.protocol == ATAPI_PROT_DMA)) {
u8 host_stat;
host_stat = ap->ops->bmdma_status(ap);
......@@ -549,7 +551,7 @@ int ata_pci_init_bmdma(struct ata_host *host)
return rc;
/* request and iomap DMA region */
rc = pcim_iomap_regions(pdev, 1 << 4, DRV_NAME);
rc = pcim_iomap_regions(pdev, 1 << 4, dev_driver_string(gdev));
if (rc) {
dev_printk(KERN_ERR, gdev, "failed to request/iomap BAR4\n");
return -ENOMEM;
......@@ -619,7 +621,8 @@ int ata_pci_init_sff_host(struct ata_host *host)
continue;
}
rc = pcim_iomap_regions(pdev, 0x3 << base, DRV_NAME);
rc = pcim_iomap_regions(pdev, 0x3 << base,
dev_driver_string(gdev));
if (rc) {
dev_printk(KERN_WARNING, gdev,
"failed to request/iomap BARs for port %d "
......@@ -710,6 +713,99 @@ int ata_pci_prepare_sff_host(struct pci_dev *pdev,
return rc;
}
/**
* ata_pci_activate_sff_host - start SFF host, request IRQ and register it
* @host: target SFF ATA host
* @irq_handler: irq_handler used when requesting IRQ(s)
* @sht: scsi_host_template to use when registering the host
*
* This is the counterpart of ata_host_activate() for SFF ATA
* hosts. This separate helper is necessary because SFF hosts
* use two separate interrupts in legacy mode.
*
* LOCKING:
* Inherited from calling layer (may sleep).
*
* RETURNS:
* 0 on success, -errno otherwise.
*/
int ata_pci_activate_sff_host(struct ata_host *host,
irq_handler_t irq_handler,
struct scsi_host_template *sht)
{
struct device *dev = host->dev;
struct pci_dev *pdev = to_pci_dev(dev);
const char *drv_name = dev_driver_string(host->dev);
int legacy_mode = 0, rc;
rc = ata_host_start(host);
if (rc)
return rc;
if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
u8 tmp8, mask;
/* TODO: What if one channel is in native mode ... */
pci_read_config_byte(pdev, PCI_CLASS_PROG, &tmp8);
mask = (1 << 2) | (1 << 0);
if ((tmp8 & mask) != mask)
legacy_mode = 1;
#if defined(CONFIG_NO_ATA_LEGACY)
/* Some platforms with PCI limits cannot address compat
port space. In that case we punt if their firmware has
left a device in compatibility mode */
if (legacy_mode) {
printk(KERN_ERR "ata: Compatibility mode ATA is not supported on this platform, skipping.\n");
return -EOPNOTSUPP;
}
#endif
}
if (!devres_open_group(dev, NULL, GFP_KERNEL))
return -ENOMEM;
if (!legacy_mode && pdev->irq) {
rc = devm_request_irq(dev, pdev->irq, irq_handler,
IRQF_SHARED, drv_name, host);
if (rc)
goto out;
ata_port_desc(host->ports[0], "irq %d", pdev->irq);
ata_port_desc(host->ports[1], "irq %d", pdev->irq);
} else if (legacy_mode) {
if (!ata_port_is_dummy(host->ports[0])) {
rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),
irq_handler, IRQF_SHARED,
drv_name, host);
if (rc)
goto out;
ata_port_desc(host->ports[0], "irq %d",
ATA_PRIMARY_IRQ(pdev));
}
if (!ata_port_is_dummy(host->ports[1])) {
rc = devm_request_irq(dev, ATA_SECONDARY_IRQ(pdev),
irq_handler, IRQF_SHARED,
drv_name, host);
if (rc)
goto out;
ata_port_desc(host->ports[1], "irq %d",
ATA_SECONDARY_IRQ(pdev));
}
}
rc = ata_host_register(host, sht);
out:
if (rc == 0)
devres_remove_group(dev, NULL);
else
devres_release_group(dev, NULL);
return rc;
}
/**
* ata_pci_init_one - Initialize/register PCI IDE host controller
* @pdev: Controller to be initialized
......@@ -739,8 +835,6 @@ int ata_pci_init_one(struct pci_dev *pdev,
struct device *dev = &pdev->dev;
const struct ata_port_info *pi = NULL;
struct ata_host *host = NULL;
u8 mask;
int legacy_mode = 0;
int i, rc;
DPRINTK("ENTER\n");
......@@ -762,95 +856,24 @@ int ata_pci_init_one(struct pci_dev *pdev,
if (!devres_open_group(dev, NULL, GFP_KERNEL))
return -ENOMEM;
/* FIXME: Really for ATA it isn't safe because the device may be
multi-purpose and we want to leave it alone if it was already
enabled. Secondly for shared use as Arjan says we want refcounting
Checking dev->is_enabled is insufficient as this is not set at
boot for the primary video which is BIOS enabled
*/
rc = pcim_enable_device(pdev);
if (rc)
goto err_out;
goto out;
if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
u8 tmp8;
/* TODO: What if one channel is in native mode ... */
pci_read_config_byte(pdev, PCI_CLASS_PROG, &tmp8);
mask = (1 << 2) | (1 << 0);
if ((tmp8 & mask) != mask)
legacy_mode = 1;
#if defined(CONFIG_NO_ATA_LEGACY)
/* Some platforms with PCI limits cannot address compat
port space. In that case we punt if their firmware has
left a device in compatibility mode */
if (legacy_mode) {
printk(KERN_ERR "ata: Compatibility mode ATA is not supported on this platform, skipping.\n");
rc = -EOPNOTSUPP;
goto err_out;
}
#endif
}
/* prepare host */
/* prepare and activate SFF host */
rc = ata_pci_prepare_sff_host(pdev, ppi, &host);
if (rc)
goto err_out;
goto out;
pci_set_master(pdev);
rc = ata_pci_activate_sff_host(host, pi->port_ops->irq_handler,
pi->sht);
out:
if (rc == 0)
devres_remove_group(&pdev->dev, NULL);
else
devres_release_group(&pdev->dev, NULL);
/* start host and request IRQ */
rc = ata_host_start(host);
if (rc)
goto err_out;
if (!legacy_mode && pdev->irq) {
/* We may have no IRQ assigned in which case we can poll. This
shouldn't happen on a sane system but robustness is cheap
in this case */
rc = devm_request_irq(dev, pdev->irq, pi->port_ops->irq_handler,
IRQF_SHARED, DRV_NAME, host);
if (rc)
goto err_out;
ata_port_desc(host->ports[0], "irq %d", pdev->irq);
ata_port_desc(host->ports[1], "irq %d", pdev->irq);
} else if (legacy_mode) {
if (!ata_port_is_dummy(host->ports[0])) {
rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),
pi->port_ops->irq_handler,
IRQF_SHARED, DRV_NAME, host);
if (rc)
goto err_out;
ata_port_desc(host->ports[0], "irq %d",
ATA_PRIMARY_IRQ(pdev));
}
if (!ata_port_is_dummy(host->ports[1])) {
rc = devm_request_irq(dev, ATA_SECONDARY_IRQ(pdev),
pi->port_ops->irq_handler,
IRQF_SHARED, DRV_NAME, host);
if (rc)
goto err_out;
ata_port_desc(host->ports[1], "irq %d",
ATA_SECONDARY_IRQ(pdev));
}
}
/* register */
rc = ata_host_register(host, pi->sht);
if (rc)
goto err_out;
devres_remove_group(dev, NULL);
return 0;
err_out:
devres_release_group(dev, NULL);
return rc;
}
......
drivers/ata/libata.h
浏览文件 @ 2ba14a01
......@@ -60,6 +60,7 @@ extern int atapi_dmadir;
extern int atapi_passthru16;
extern int libata_fua;
extern int libata_noacpi;
extern int libata_allow_tpm;
extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev);
extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
u64 block, u32 n_block, unsigned int tf_flags,
......@@ -85,7 +86,6 @@ extern int ata_dev_configure(struct ata_device *dev);
extern int sata_down_spd_limit(struct ata_link *link);
extern int sata_set_spd_needed(struct ata_link *link);
extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel);
extern int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
extern void ata_sg_clean(struct ata_queued_cmd *qc);
extern void ata_qc_free(struct ata_queued_cmd *qc);
extern void ata_qc_issue(struct ata_queued_cmd *qc);
......@@ -113,6 +113,7 @@ extern int ata_acpi_on_suspend(struct ata_port *ap);
extern void ata_acpi_on_resume(struct ata_port *ap);
extern int ata_acpi_on_devcfg(struct ata_device *dev);
extern void ata_acpi_on_disable(struct ata_device *dev);
extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state);
#else
static inline void ata_acpi_associate_sata_port(struct ata_port *ap) { }
static inline void ata_acpi_associate(struct ata_host *host) { }
......@@ -121,6 +122,8 @@ static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; }
static inline void ata_acpi_on_resume(struct ata_port *ap) { }
static inline int ata_acpi_on_devcfg(struct ata_device *dev) { return 0; }
static inline void ata_acpi_on_disable(struct ata_device *dev) { }
static inline void ata_acpi_set_state(struct ata_port *ap,
pm_message_t state) { }
#endif
/* libata-scsi.c */
......@@ -183,6 +186,7 @@ extern void ata_eh_report(struct ata_port *ap);
extern int ata_eh_reset(struct ata_link *link, int classify,
ata_prereset_fn_t prereset, ata_reset_fn_t softreset,
ata_reset_fn_t hardreset, ata_postreset_fn_t postreset);
extern int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
extern int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset,
ata_reset_fn_t softreset, ata_reset_fn_t hardreset,
ata_postreset_fn_t postreset,
......
drivers/ata/pata_acpi.c
浏览文件 @ 2ba14a01
......@@ -81,17 +81,6 @@ static void pacpi_error_handler(struct ata_port *ap)
NULL, ata_std_postreset);
}
/* Welcome to ACPI, bring a bucket */
static const unsigned int pio_cycle[7] = {
600, 383, 240, 180, 120, 100, 80
};
static const unsigned int mwdma_cycle[5] = {
480, 150, 120, 100, 80
};
static const unsigned int udma_cycle[7] = {
120, 80, 60, 45, 30, 20, 15
};
/**
* pacpi_discover_modes - filter non ACPI modes
* @adev: ATA device
......@@ -103,56 +92,20 @@ static const unsigned int udma_cycle[7] = {
static unsigned long pacpi_discover_modes(struct ata_port *ap, struct ata_device *adev)
{
int unit = adev->devno;
struct pata_acpi *acpi = ap->private_data;
int i;
u32 t;
unsigned long mask = (0x7f << ATA_SHIFT_UDMA) | (0x7 << ATA_SHIFT_MWDMA) | (0x1F << ATA_SHIFT_PIO);
struct ata_acpi_gtm probe;
unsigned int xfer_mask;
probe = acpi->gtm;
/* We always use the 0 slot for crap hardware */
if (!(probe.flags & 0x10))
unit = 0;
ata_acpi_gtm(ap, &probe);
/* Start by scanning for PIO modes */
for (i = 0; i < 7; i++) {
t = probe.drive[unit].pio;
if (t <= pio_cycle[i]) {
mask |= (2 << (ATA_SHIFT_PIO + i)) - 1;
break;
}
}
xfer_mask = ata_acpi_gtm_xfermask(adev, &probe);
/* See if we have MWDMA or UDMA data. We don't bother with MWDMA
if UDMA is availabe as this means the BIOS set UDMA and our
error changedown if it works is UDMA to PIO anyway */
if (probe.flags & (1 << (2 * unit))) {
/* MWDMA */
for (i = 0; i < 5; i++) {
t = probe.drive[unit].dma;
if (t <= mwdma_cycle[i]) {
mask |= (2 << (ATA_SHIFT_MWDMA + i)) - 1;
break;
}
}
} else {
/* UDMA */
for (i = 0; i < 7; i++) {
t = probe.drive[unit].dma;
if (t <= udma_cycle[i]) {
mask |= (2 << (ATA_SHIFT_UDMA + i)) - 1;
break;
}
}
}
if (mask & (0xF8 << ATA_SHIFT_UDMA))
if (xfer_mask & (0xF8 << ATA_SHIFT_UDMA))
ap->cbl = ATA_CBL_PATA80;
return mask;
return xfer_mask;
}
/**
......@@ -180,12 +133,14 @@ static void pacpi_set_piomode(struct ata_port *ap, struct ata_device *adev)
{
int unit = adev->devno;
struct pata_acpi *acpi = ap->private_data;
const struct ata_timing *t;
if (!(acpi->gtm.flags & 0x10))
unit = 0;
/* Now stuff the nS values into the structure */
acpi->gtm.drive[unit].pio = pio_cycle[adev->pio_mode - XFER_PIO_0];
t = ata_timing_find_mode(adev->pio_mode);
acpi->gtm.drive[unit].pio = t->cycle;
ata_acpi_stm(ap, &acpi->gtm);
/* See what mode we actually got */
ata_acpi_gtm(ap, &acpi->gtm);
......@@ -201,16 +156,18 @@ static void pacpi_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{
int unit = adev->devno;
struct pata_acpi *acpi = ap->private_data;
const struct ata_timing *t;
if (!(acpi->gtm.flags & 0x10))
unit = 0;
/* Now stuff the nS values into the structure */
t = ata_timing_find_mode(adev->dma_mode);
if (adev->dma_mode >= XFER_UDMA_0) {
acpi->gtm.drive[unit].dma = udma_cycle[adev->dma_mode - XFER_UDMA_0];
acpi->gtm.drive[unit].dma = t->udma;
acpi->gtm.flags |= (1 << (2 * unit));
} else {
acpi->gtm.drive[unit].dma = mwdma_cycle[adev->dma_mode - XFER_MW_DMA_0];
acpi->gtm.drive[unit].dma = t->cycle;
acpi->gtm.flags &= ~(1 << (2 * unit));
}
ata_acpi_stm(ap, &acpi->gtm);
......
drivers/ata/pata_ali.c
浏览文件 @ 2ba14a01
......@@ -64,7 +64,7 @@ static int ali_cable_override(struct pci_dev *pdev)
if (pdev->subsystem_vendor == 0x10CF && pdev->subsystem_device == 0x10AF)
return 1;
/* Mitac 8317 (Winbook-A) and relatives */
if (pdev->subsystem_vendor == 0x1071 && pdev->subsystem_device == 0x8317)
if (pdev->subsystem_vendor == 0x1071 && pdev->subsystem_device == 0x8317)
return 1;
/* Systems by DMI */
if (dmi_check_system(cable_dmi_table))
......
drivers/ata/pata_amd.c
浏览文件 @ 2ba14a01
......@@ -220,6 +220,62 @@ static void amd133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
timing_setup(ap, adev, 0x40, adev->dma_mode, 4);
}
/* Both host-side and drive-side detection results are worthless on NV
* PATAs. Ignore them and just follow what BIOS configured. Both the
* current configuration in PCI config reg and ACPI GTM result are
* cached during driver attach and are consulted to select transfer
* mode.
*/
static unsigned long nv_mode_filter(struct ata_device *dev,
unsigned long xfer_mask)
{
static const unsigned int udma_mask_map[] =
{ ATA_UDMA2, ATA_UDMA1, ATA_UDMA0, 0,
ATA_UDMA3, ATA_UDMA4, ATA_UDMA5, ATA_UDMA6 };
struct ata_port *ap = dev->link->ap;
char acpi_str[32] = "";
u32 saved_udma, udma;
const struct ata_acpi_gtm *gtm;
unsigned long bios_limit = 0, acpi_limit = 0, limit;
/* find out what BIOS configured */
udma = saved_udma = (unsigned long)ap->host->private_data;
if (ap->port_no == 0)
udma >>= 16;
if (dev->devno == 0)
udma >>= 8;
if ((udma & 0xc0) == 0xc0)
bios_limit = ata_pack_xfermask(0, 0, udma_mask_map[udma & 0x7]);
/* consult ACPI GTM too */
gtm = ata_acpi_init_gtm(ap);
if (gtm) {
acpi_limit = ata_acpi_gtm_xfermask(dev, gtm);
snprintf(acpi_str, sizeof(acpi_str), " (%u:%u:0x%x)",
gtm->drive[0].dma, gtm->drive[1].dma, gtm->flags);
}
/* be optimistic, EH can take care of things if something goes wrong */
limit = bios_limit | acpi_limit;
/* If PIO or DMA isn't configured at all, don't limit. Let EH
* handle it.
*/
if (!(limit & ATA_MASK_PIO))
limit |= ATA_MASK_PIO;
if (!(limit & (ATA_MASK_MWDMA | ATA_MASK_UDMA)))
limit |= ATA_MASK_MWDMA | ATA_MASK_UDMA;
ata_port_printk(ap, KERN_DEBUG, "nv_mode_filter: 0x%lx&0x%lx->0x%lx, "
"BIOS=0x%lx (0x%x) ACPI=0x%lx%s\n",
xfer_mask, limit, xfer_mask & limit, bios_limit,
saved_udma, acpi_limit, acpi_str);
return xfer_mask & limit;
}
/**
* nv_probe_init - cable detection
......@@ -252,31 +308,6 @@ static void nv_error_handler(struct ata_port *ap)
ata_std_postreset);
}
static int nv_cable_detect(struct ata_port *ap)
{
static const u8 bitmask[2] = {0x03, 0x0C};
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
u8 ata66;
u16 udma;
int cbl;
pci_read_config_byte(pdev, 0x52, &ata66);
if (ata66 & bitmask[ap->port_no])
cbl = ATA_CBL_PATA80;
else
cbl = ATA_CBL_PATA40;
/* We now have to double check because the Nvidia boxes BIOS
doesn't always set the cable bits but does set mode bits */
pci_read_config_word(pdev, 0x62 - 2 * ap->port_no, &udma);
if ((udma & 0xC4) == 0xC4 || (udma & 0xC400) == 0xC400)
cbl = ATA_CBL_PATA80;
/* And a triple check across suspend/resume with ACPI around */
if (ata_acpi_cbl_80wire(ap))
cbl = ATA_CBL_PATA80;
return cbl;
}
/**
* nv100_set_piomode - set initial PIO mode data
* @ap: ATA interface
......@@ -314,6 +345,14 @@ static void nv133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
timing_setup(ap, adev, 0x50, adev->dma_mode, 4);
}
static void nv_host_stop(struct ata_host *host)
{
u32 udma = (unsigned long)host->private_data;
/* restore PCI config register 0x60 */
pci_write_config_dword(to_pci_dev(host->dev), 0x60, udma);
}
static struct scsi_host_template amd_sht = {
.module = THIS_MODULE,
.name = DRV_NAME,
......@@ -478,7 +517,8 @@ static struct ata_port_operations nv100_port_ops = {
.thaw = ata_bmdma_thaw,
.error_handler = nv_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.cable_detect = nv_cable_detect,
.cable_detect = ata_cable_ignore,
.mode_filter = nv_mode_filter,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
......@@ -495,6 +535,7 @@ static struct ata_port_operations nv100_port_ops = {
.irq_on = ata_irq_on,
.port_start = ata_sff_port_start,
.host_stop = nv_host_stop,
};
static struct ata_port_operations nv133_port_ops = {
......@@ -511,7 +552,8 @@ static struct ata_port_operations nv133_port_ops = {
.thaw = ata_bmdma_thaw,
.error_handler = nv_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.cable_detect = nv_cable_detect,
.cable_detect = ata_cable_ignore,
.mode_filter = nv_mode_filter,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
......@@ -528,6 +570,7 @@ static struct ata_port_operations nv133_port_ops = {
.irq_on = ata_irq_on,
.port_start = ata_sff_port_start,
.host_stop = nv_host_stop,
};
static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
......@@ -614,7 +657,8 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
.port_ops = &amd100_port_ops
}
};
const struct ata_port_info *ppi[] = { NULL, NULL };
struct ata_port_info pi;
const struct ata_port_info *ppi[] = { &pi, NULL };
static int printed_version;
int type = id->driver_data;
u8 fifo;
......@@ -628,6 +672,19 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
if (type == 1 && pdev->revision > 0x7)
type = 2;
/* Serenade ? */
if (type == 5 && pdev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
pdev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
type = 6; /* UDMA 100 only */
/*
* Okay, type is determined now. Apply type-specific workarounds.
*/
pi = info[type];
if (type < 3)
ata_pci_clear_simplex(pdev);
/* Check for AMD7411 */
if (type == 3)
/* FIFO is broken */
......@@ -635,16 +692,17 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
else
pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
/* Serenade ? */
if (type == 5 && pdev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
pdev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
type = 6; /* UDMA 100 only */
/* Cable detection on Nvidia chips doesn't work too well,
* cache BIOS programmed UDMA mode.
*/
if (type == 7 || type == 8) {
u32 udma;
if (type < 3)
ata_pci_clear_simplex(pdev);
pci_read_config_dword(pdev, 0x60, &udma);
pi.private_data = (void *)(unsigned long)udma;
}
/* And fire it up */
ppi[0] = &info[type];
return ata_pci_init_one(pdev, ppi);
}
......
drivers/ata/pata_bf54x.c
浏览文件 @ 2ba14a01
......@@ -832,6 +832,7 @@ static void bfin_bmdma_setup(struct ata_queued_cmd *qc)
{
unsigned short config = WDSIZE_16;
struct scatterlist *sg;
unsigned int si;
pr_debug("in atapi dma setup\n");
/* Program the ATA_CTRL register with dir */
......@@ -839,7 +840,7 @@ static void bfin_bmdma_setup(struct ata_queued_cmd *qc)
/* fill the ATAPI DMA controller */
set_dma_config(CH_ATAPI_TX, config);
set_dma_x_modify(CH_ATAPI_TX, 2);
ata_for_each_sg(sg, qc) {
for_each_sg(qc->sg, sg, qc->n_elem, si) {
set_dma_start_addr(CH_ATAPI_TX, sg_dma_address(sg));
set_dma_x_count(CH_ATAPI_TX, sg_dma_len(sg) >> 1);
}
......@@ -848,7 +849,7 @@ static void bfin_bmdma_setup(struct ata_queued_cmd *qc)
/* fill the ATAPI DMA controller */
set_dma_config(CH_ATAPI_RX, config);
set_dma_x_modify(CH_ATAPI_RX, 2);
ata_for_each_sg(sg, qc) {
for_each_sg(qc->sg, sg, qc->n_elem, si) {
set_dma_start_addr(CH_ATAPI_RX, sg_dma_address(sg));
set_dma_x_count(CH_ATAPI_RX, sg_dma_len(sg) >> 1);
}
......@@ -867,6 +868,7 @@ static void bfin_bmdma_start(struct ata_queued_cmd *qc)
struct ata_port *ap = qc->ap;
void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
struct scatterlist *sg;
unsigned int si;
pr_debug("in atapi dma start\n");
if (!(ap->udma_mask || ap->mwdma_mask))
......@@ -881,7 +883,7 @@ static void bfin_bmdma_start(struct ata_queued_cmd *qc)
* data cache is enabled. Otherwise, this loop
* is an empty loop and optimized out.
*/
ata_for_each_sg(sg, qc) {
for_each_sg(qc->sg, sg, qc->n_elem, si) {
flush_dcache_range(sg_dma_address(sg),
sg_dma_address(sg) + sg_dma_len(sg));
}
......@@ -910,7 +912,7 @@ static void bfin_bmdma_start(struct ata_queued_cmd *qc)
ATAPI_SET_CONTROL(base, ATAPI_GET_CONTROL(base) | TFRCNT_RST);
/* Set transfer length to buffer len */
ata_for_each_sg(sg, qc) {
for_each_sg(qc->sg, sg, qc->n_elem, si) {
ATAPI_SET_XFER_LEN(base, (sg_dma_len(sg) >> 1));
}
......@@ -932,6 +934,7 @@ static void bfin_bmdma_stop(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct scatterlist *sg;
unsigned int si;
pr_debug("in atapi dma stop\n");
if (!(ap->udma_mask || ap->mwdma_mask))
......@@ -950,7 +953,7 @@ static void bfin_bmdma_stop(struct ata_queued_cmd *qc)
* data cache is enabled. Otherwise, this loop
* is an empty loop and optimized out.
*/
ata_for_each_sg(sg, qc) {
for_each_sg(qc->sg, sg, qc->n_elem, si) {
invalidate_dcache_range(
sg_dma_address(sg),
sg_dma_address(sg)
......@@ -1167,34 +1170,36 @@ static unsigned char bfin_bmdma_status(struct ata_port *ap)
* Note: Original code is ata_data_xfer().
*/
static void bfin_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data)
static unsigned int bfin_data_xfer(struct ata_device *dev, unsigned char *buf,
unsigned int buflen, int rw)
{
struct ata_port *ap = adev->link->ap;
unsigned int words = buflen >> 1;
unsigned short *buf16 = (u16 *) buf;
struct ata_port *ap = dev->link->ap;
void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
unsigned int words = buflen >> 1;
unsigned short *buf16 = (u16 *)buf;
/* Transfer multiple of 2 bytes */
if (write_data) {
write_atapi_data(base, words, buf16);
} else {
if (rw == READ)
read_atapi_data(base, words, buf16);
}
else
write_atapi_data(base, words, buf16);
/* Transfer trailing 1 byte, if any. */
if (unlikely(buflen & 0x01)) {
unsigned short align_buf[1] = { 0 };
unsigned char *trailing_buf = buf + buflen - 1;
if (write_data) {
memcpy(align_buf, trailing_buf, 1);
write_atapi_data(base, 1, align_buf);
} else {
if (rw == READ) {
read_atapi_data(base, 1, align_buf);
memcpy(trailing_buf, align_buf, 1);
} else {
memcpy(align_buf, trailing_buf, 1);
write_atapi_data(base, 1, align_buf);
}
words++;
}
return words << 1;
}
/**
......
drivers/ata/pata_cs5520.c
浏览文件 @ 2ba14a01
......@@ -198,7 +198,7 @@ static int __devinit cs5520_init_one(struct pci_dev *pdev, const struct pci_devi
};
const struct ata_port_info *ppi[2];
u8 pcicfg;
void *iomap[5];
void __iomem *iomap[5];
struct ata_host *host;
struct ata_ioports *ioaddr;
int i, rc;
......
drivers/ata/pata_hpt37x.c
浏览文件 @ 2ba14a01
......@@ -847,15 +847,16 @@ static u32 hpt374_read_freq(struct pci_dev *pdev)
u32 freq;
unsigned long io_base = pci_resource_start(pdev, 4);
if (PCI_FUNC(pdev->devfn) & 1) {
struct pci_dev *pdev_0 = pci_get_slot(pdev->bus, pdev->devfn - 1);
struct pci_dev *pdev_0;
pdev_0 = pci_get_slot(pdev->bus, pdev->devfn - 1);
/* Someone hot plugged the controller on us ? */
if (pdev_0 == NULL)
return 0;
io_base = pci_resource_start(pdev_0, 4);
freq = inl(io_base + 0x90);
pci_dev_put(pdev_0);
}
else
} else
freq = inl(io_base + 0x90);
return freq;
}
......
drivers/ata/pata_icside.c
浏览文件 @ 2ba14a01
......@@ -224,6 +224,7 @@ static void pata_icside_bmdma_setup(struct ata_queued_cmd *qc)
struct pata_icside_state *state = ap->host->private_data;
struct scatterlist *sg, *rsg = state->sg;
unsigned int write = qc->tf.flags & ATA_TFLAG_WRITE;
unsigned int si;
/*
* We are simplex; BUG if we try to fiddle with DMA
......@@ -234,7 +235,7 @@ static void pata_icside_bmdma_setup(struct ata_queued_cmd *qc)
/*
* Copy ATAs scattered sg list into a contiguous array of sg
*/
ata_for_each_sg(sg, qc) {
for_each_sg(qc->sg, sg, qc->n_elem, si) {
memcpy(rsg, sg, sizeof(*sg));
rsg++;
}
......
drivers/ata/pata_it821x.c
浏览文件 @ 2ba14a01
......@@ -430,7 +430,7 @@ static unsigned int it821x_smart_qc_issue_prot(struct ata_queued_cmd *qc)
return ata_qc_issue_prot(qc);
}
printk(KERN_DEBUG "it821x: can't process command 0x%02X\n", qc->tf.command);
return AC_ERR_INVALID;
return AC_ERR_DEV;
}
/**
......@@ -516,6 +516,37 @@ static void it821x_dev_config(struct ata_device *adev)
printk("(%dK stripe)", adev->id[146]);
printk(".\n");
}
/* This is a controller firmware triggered funny, don't
report the drive faulty! */
adev->horkage &= ~ATA_HORKAGE_DIAGNOSTIC;
}
/**
* it821x_ident_hack - Hack identify data up
* @ap: Port
*
* Walk the devices on this firmware driven port and slightly
* mash the identify data to stop us and common tools trying to
* use features not firmware supported. The firmware itself does
* some masking (eg SMART) but not enough.
*
* This is a bit of an abuse of the cable method, but it is the
* only method called at the right time. We could modify the libata
* core specifically for ident hacking but while we have one offender
* it seems better to keep the fallout localised.
*/
static int it821x_ident_hack(struct ata_port *ap)
{
struct ata_device *adev;
ata_link_for_each_dev(adev, &ap->link) {
if (ata_dev_enabled(adev)) {
adev->id[84] &= ~(1 << 6); /* No FUA */
adev->id[85] &= ~(1 << 10); /* No HPA */
adev->id[76] = 0; /* No NCQ/AN etc */
}
}
return ata_cable_unknown(ap);
}
......@@ -634,7 +665,7 @@ static struct ata_port_operations it821x_smart_port_ops = {
.thaw = ata_bmdma_thaw,
.error_handler = ata_bmdma_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.cable_detect = ata_cable_unknown,
.cable_detect = it821x_ident_hack,
.bmdma_setup = ata_bmdma_setup,
.bmdma_start = ata_bmdma_start,
......
drivers/ata/pata_ixp4xx_cf.c
浏览文件 @ 2ba14a01
......@@ -42,13 +42,13 @@ static int ixp4xx_set_mode(struct ata_link *link, struct ata_device **error)
return 0;
}
static void ixp4xx_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data)
static unsigned int ixp4xx_mmio_data_xfer(struct ata_device *dev,
unsigned char *buf, unsigned int buflen, int rw)
{
unsigned int i;
unsigned int words = buflen >> 1;
u16 *buf16 = (u16 *) buf;
struct ata_port *ap = adev->link->ap;
struct ata_port *ap = dev->link->ap;
void __iomem *mmio = ap->ioaddr.data_addr;
struct ixp4xx_pata_data *data = ap->host->dev->platform_data;
......@@ -59,30 +59,32 @@ static void ixp4xx_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
udelay(100);
/* Transfer multiple of 2 bytes */
if (write_data) {
for (i = 0; i < words; i++)
writew(buf16[i], mmio);
} else {
if (rw == READ)
for (i = 0; i < words; i++)
buf16[i] = readw(mmio);
}
else
for (i = 0; i < words; i++)
writew(buf16[i], mmio);
/* Transfer trailing 1 byte, if any. */
if (unlikely(buflen & 0x01)) {
u16 align_buf[1] = { 0 };
unsigned char *trailing_buf = buf + buflen - 1;
if (write_data) {
memcpy(align_buf, trailing_buf, 1);
writew(align_buf[0], mmio);
} else {
if (rw == READ) {
align_buf[0] = readw(mmio);
memcpy(trailing_buf, align_buf, 1);
} else {
memcpy(align_buf, trailing_buf, 1);
writew(align_buf[0], mmio);
}
words++;
}
udelay(100);
*data->cs0_cfg |= 0x01;
return words << 1;
}
static struct scsi_host_template ixp4xx_sht = {
......
drivers/ata/pata_legacy.c
浏览文件 @ 2ba14a01
此差异已折叠。
drivers/ata/pata_mpc52xx.c
浏览文件 @ 2ba14a01
......@@ -364,7 +364,7 @@ mpc52xx_ata_probe(struct of_device *op, const struct of_device_id *match)
{
unsigned int ipb_freq;
struct resource res_mem;
int ata_irq = NO_IRQ;
int ata_irq;
struct mpc52xx_ata __iomem *ata_regs;
struct mpc52xx_ata_priv *priv;
int rv;
......
drivers/ata/pata_ninja32.c 0 → 100644
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drivers/ata/pata_pcmcia.c
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drivers/ata/pata_pdc2027x.c
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此差异已折叠。
drivers/ata/pata_pdc202xx_old.c
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drivers/ata/pata_qdi.c
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drivers/ata/pata_scc.c
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drivers/ata/pata_serverworks.c
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drivers/ata/pata_via.c
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drivers/ata/pata_winbond.c
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drivers/ata/pdc_adma.c
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drivers/ata/sata_fsl.c
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drivers/ata/sata_inic162x.c
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drivers/ata/sata_mv.c
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drivers/ata/sata_nv.c
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drivers/ata/sata_promise.c
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drivers/ata/sata_promise.h
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drivers/ata/sata_qstor.c
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drivers/ata/sata_sil.c
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drivers/ata/sata_sil24.c
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drivers/ata/sata_sx4.c
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drivers/scsi/ipr.c
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此差异已折叠。
drivers/scsi/libsas/sas_ata.c
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include/linux/ata.h
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include/linux/cdrom.h
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include/linux/libata.h
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include/linux/pci_ids.h
浏览文件 @ 2ba14a01
此差异已折叠。
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