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Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev

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* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: implement and use ATA_QCFLAG_QUIET
  libata: stop being overjealous about non-IO commands
  libata: flush is an IO command
  sata_promise: cleanups
  sata_promise: ASIC PRD table bug workaround, take 2
This commit is contained in:
Linus Torvalds 2007-10-30 11:49:13 -07:00
commit 8c1ee54cb3
5 changed files with 115 additions and 23 deletions
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20
drivers/ata/libata-eh.c
View file

@ -1800,10 +1800,8 @@ static void ata_eh_link_autopsy(struct ata_link *link)
qc->err_mask &= ~AC_ERR_OTHER;
/* SENSE_VALID trumps dev/unknown error and revalidation */
if (qc->flags & ATA_QCFLAG_SENSE_VALID) {
if (qc->flags & ATA_QCFLAG_SENSE_VALID)
qc->err_mask &= ~(AC_ERR_DEV | AC_ERR_OTHER);
ehc->i.action &= ~ATA_EH_REVALIDATE;
}
/* accumulate error info */
ehc->i.dev = qc->dev;
@ -1816,7 +1814,8 @@ static void ata_eh_link_autopsy(struct ata_link *link)
if (ap->pflags & ATA_PFLAG_FROZEN ||
all_err_mask & (AC_ERR_HSM | AC_ERR_TIMEOUT))
ehc->i.action |= ATA_EH_SOFTRESET;
else if (all_err_mask)
else if ((is_io && all_err_mask) ||
(!is_io && (all_err_mask & ~AC_ERR_DEV)))
ehc->i.action |= ATA_EH_REVALIDATE;
/* if we have offending qcs and the associated failed device */
@ -1879,7 +1878,9 @@ static void ata_eh_link_report(struct ata_link *link)
for (tag = 0; tag < ATA_MAX_QUEUE; tag++) {
struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag);
if (!(qc->flags & ATA_QCFLAG_FAILED) || qc->dev->link != link)
if (!(qc->flags & ATA_QCFLAG_FAILED) || qc->dev->link != link ||
((qc->flags & ATA_QCFLAG_QUIET) &&
qc->err_mask == AC_ERR_DEV))
continue;
if (qc->flags & ATA_QCFLAG_SENSE_VALID && !qc->err_mask)
continue;
@ -2697,8 +2698,15 @@ void ata_eh_finish(struct ata_port *ap)
/* FIXME: Once EH migration is complete,
* generate sense data in this function,
* considering both err_mask and tf.
*
* There's no point in retrying invalid
* (detected by libata) and non-IO device
* errors (rejected by device). Finish them
* immediately.
*/
if (qc->err_mask & AC_ERR_INVALID)
if ((qc->err_mask & AC_ERR_INVALID) ||
(!(qc->flags & ATA_QCFLAG_IO) &&
qc->err_mask == AC_ERR_DEV))
ata_eh_qc_complete(qc);
else
ata_eh_qc_retry(qc);

7
drivers/ata/libata-scsi.c
View file

@ -1108,6 +1108,9 @@ static unsigned int ata_scsi_flush_xlat(struct ata_queued_cmd *qc)
else
tf->command = ATA_CMD_FLUSH;
/* flush is critical for IO integrity, consider it an IO command */
qc->flags |= ATA_QCFLAG_IO;
return 0;
}
@ -2764,8 +2767,8 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
*/
qc->nbytes = scsi_bufflen(scmd);
/* request result TF */
qc->flags |= ATA_QCFLAG_RESULT_TF;
/* request result TF and be quiet about device error */
qc->flags |= ATA_QCFLAG_RESULT_TF | ATA_QCFLAG_QUIET;
return 0;

104
drivers/ata/sata_promise.c
View file

@ -2,6 +2,7 @@
* sata_promise.c - Promise SATA
*
* Maintained by: Jeff Garzik <jgarzik@pobox.com>
* Mikael Pettersson <mikpe@it.uu.se>
* Please ALWAYS copy linux-ide@vger.kernel.org
* on emails.
*
@ -45,11 +46,12 @@
#include "sata_promise.h"
#define DRV_NAME "sata_promise"
#define DRV_VERSION "2.10"
#define DRV_VERSION "2.11"
enum {
PDC_MAX_PORTS = 4,
PDC_MMIO_BAR = 3,
PDC_MAX_PRD = LIBATA_MAX_PRD - 1, /* -1 for ASIC PRD bug workaround */
/* register offsets */
PDC_FEATURE = 0x04, /* Feature/Error reg (per port) */
@ -157,7 +159,7 @@ static struct scsi_host_template pdc_ata_sht = {
.queuecommand = ata_scsi_queuecmd,
.can_queue = ATA_DEF_QUEUE,
.this_id = ATA_SHT_THIS_ID,
.sg_tablesize = LIBATA_MAX_PRD,
.sg_tablesize = PDC_MAX_PRD,
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
.emulated = ATA_SHT_EMULATED,
.use_clustering = ATA_SHT_USE_CLUSTERING,
@ -240,7 +242,7 @@ static const struct ata_port_operations pdc_pata_ops = {
};
static const struct ata_port_info pdc_port_info[] = {
/* board_2037x */
[board_2037x] =
{
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA |
PDC_FLAG_SATA_PATA,
@ -250,7 +252,7 @@ static const struct ata_port_info pdc_port_info[] = {
.port_ops = &pdc_old_sata_ops,
},
/* board_2037x_pata */
[board_2037x_pata] =
{
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f, /* pio0-4 */
@ -259,7 +261,7 @@ static const struct ata_port_info pdc_port_info[] = {
.port_ops = &pdc_pata_ops,
},
/* board_20319 */
[board_20319] =
{
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA |
PDC_FLAG_4_PORTS,
@ -269,7 +271,7 @@ static const struct ata_port_info pdc_port_info[] = {
.port_ops = &pdc_old_sata_ops,
},
/* board_20619 */
[board_20619] =
{
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS |
PDC_FLAG_4_PORTS,
@ -279,7 +281,7 @@ static const struct ata_port_info pdc_port_info[] = {
.port_ops = &pdc_pata_ops,
},
/* board_2057x */
[board_2057x] =
{
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA |
PDC_FLAG_GEN_II | PDC_FLAG_SATA_PATA,
@ -289,7 +291,7 @@ static const struct ata_port_info pdc_port_info[] = {
.port_ops = &pdc_sata_ops,
},
/* board_2057x_pata */
[board_2057x_pata] =
{
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS |
PDC_FLAG_GEN_II,
@ -299,7 +301,7 @@ static const struct ata_port_info pdc_port_info[] = {
.port_ops = &pdc_pata_ops,
},
/* board_40518 */
[board_40518] =
{
.flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA |
PDC_FLAG_GEN_II | PDC_FLAG_4_PORTS,
@ -523,6 +525,84 @@ static void pdc_atapi_pkt(struct ata_queued_cmd *qc)
memcpy(buf+31, cdb, cdb_len);
}
/**
* pdc_fill_sg - Fill PCI IDE PRD table
* @qc: Metadata associated with taskfile to be transferred
*
* Fill PCI IDE PRD (scatter-gather) table with segments
* associated with the current disk command.
* Make sure hardware does not choke on it.
*
* LOCKING:
* spin_lock_irqsave(host lock)
*
*/
static void pdc_fill_sg(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct scatterlist *sg;
unsigned int idx;
const u32 SG_COUNT_ASIC_BUG = 41*4;
if (!(qc->flags & ATA_QCFLAG_DMAMAP))
return;
WARN_ON(qc->__sg == NULL);
WARN_ON(qc->n_elem == 0 && qc->pad_len == 0);
idx = 0;
ata_for_each_sg(sg, qc) {
u32 addr, offset;
u32 sg_len, len;
/* determine if physical DMA addr spans 64K boundary.
* Note h/w doesn't support 64-bit, so we unconditionally
* truncate dma_addr_t to u32.
*/
addr = (u32) sg_dma_address(sg);
sg_len = sg_dma_len(sg);
while (sg_len) {
offset = addr & 0xffff;
len = sg_len;
if ((offset + sg_len) > 0x10000)
len = 0x10000 - offset;
ap->prd[idx].addr = cpu_to_le32(addr);
ap->prd[idx].flags_len = cpu_to_le32(len & 0xffff);
VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", idx, addr, len);
idx++;
sg_len -= len;
addr += len;
}
}
if (idx) {
u32 len = le32_to_cpu(ap->prd[idx - 1].flags_len);
if (len > SG_COUNT_ASIC_BUG) {
u32 addr;
VPRINTK("Splitting last PRD.\n");
addr = le32_to_cpu(ap->prd[idx - 1].addr);
ap->prd[idx - 1].flags_len -= cpu_to_le32(SG_COUNT_ASIC_BUG);
VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", idx - 1, addr, SG_COUNT_ASIC_BUG);
addr = addr + len - SG_COUNT_ASIC_BUG;
len = SG_COUNT_ASIC_BUG;
ap->prd[idx].addr = cpu_to_le32(addr);
ap->prd[idx].flags_len = cpu_to_le32(len);
VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", idx, addr, len);
idx++;
}
ap->prd[idx - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT);
}
}
static void pdc_qc_prep(struct ata_queued_cmd *qc)
{
struct pdc_port_priv *pp = qc->ap->private_data;
@ -532,7 +612,7 @@ static void pdc_qc_prep(struct ata_queued_cmd *qc)
switch (qc->tf.protocol) {
case ATA_PROT_DMA:
ata_qc_prep(qc);
pdc_fill_sg(qc);
/* fall through */
case ATA_PROT_NODATA:
@ -548,11 +628,11 @@ static void pdc_qc_prep(struct ata_queued_cmd *qc)
break;
case ATA_PROT_ATAPI:
ata_qc_prep(qc);
pdc_fill_sg(qc);
break;
case ATA_PROT_ATAPI_DMA:
ata_qc_prep(qc);
pdc_fill_sg(qc);
/*FALLTHROUGH*/
case ATA_PROT_ATAPI_NODATA:
pdc_atapi_pkt(qc);

6
drivers/ata/sata_sil24.c
View file

@ -265,11 +265,11 @@ static struct sil24_cerr_info {
unsigned int err_mask, action;
const char *desc;
} sil24_cerr_db[] = {
[0] = { AC_ERR_DEV, ATA_EH_REVALIDATE,
[0] = { AC_ERR_DEV, 0,
"device error" },
[PORT_CERR_DEV] = { AC_ERR_DEV, ATA_EH_REVALIDATE,
[PORT_CERR_DEV] = { AC_ERR_DEV, 0,
"device error via D2H FIS" },
[PORT_CERR_SDB] = { AC_ERR_DEV, ATA_EH_REVALIDATE,
[PORT_CERR_SDB] = { AC_ERR_DEV, 0,
"device error via SDB FIS" },
[PORT_CERR_DATA] = { AC_ERR_ATA_BUS, ATA_EH_SOFTRESET,
"error in data FIS" },

1
include/linux/libata.h
View file

@ -221,6 +221,7 @@ enum {
ATA_QCFLAG_IO = (1 << 3), /* standard IO command */
ATA_QCFLAG_RESULT_TF = (1 << 4), /* result TF requested */
ATA_QCFLAG_CLEAR_EXCL = (1 << 5), /* clear excl_link on completion */
ATA_QCFLAG_QUIET = (1 << 6), /* don't report device error */
ATA_QCFLAG_FAILED = (1 << 16), /* cmd failed and is owned by EH */
ATA_QCFLAG_SENSE_VALID = (1 << 17), /* sense data valid */