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

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* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: kill ATA_HORKAGE_DMA_RW_ONLY
  libata: use PIO for non-16 byte aligned ATAPI commands
  libata: call ata_check_atapi_dma() with qc better prepared
  libata: fix infinite EH waiting bug
  libata: fix ata_dev_disable()
  pata_it821x: fix section mismatch warning
  libata: remove unused variable from ata_eh_reset()
  libata: be less verbose about hpa
  libata: kill non-sense warning message
  libata: kill the infamous abnormal status message
  HPT374 is UDMA100 not UDMA133
This commit is contained in:
Linus Torvalds 2007-06-27 10:00:23 -07:00
commit 75ca0d2266
6 changed files with 34 additions and 62 deletions
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54
drivers/ata/libata-core.c
View File

@ -600,8 +600,9 @@ static const char *sata_spd_string(unsigned int spd)
void ata_dev_disable(struct ata_device *dev)
{
if (ata_dev_enabled(dev) && ata_msg_drv(dev->ap)) {
ata_dev_printk(dev, KERN_WARNING, "disabled\n");
if (ata_dev_enabled(dev)) {
if (ata_msg_drv(dev->ap))
ata_dev_printk(dev, KERN_WARNING, "disabled\n");
ata_down_xfermask_limit(dev, ATA_DNXFER_FORCE_PIO0 |
ATA_DNXFER_QUIET);
dev->class++;
@ -983,11 +984,6 @@ static u64 ata_hpa_resize(struct ata_device *dev)
else
hpa_sectors = ata_read_native_max_address(dev);
/* if no hpa, both should be equal */
ata_dev_printk(dev, KERN_INFO, "%s 1: sectors = %lld, "
"hpa_sectors = %lld\n",
__FUNCTION__, (long long)sectors, (long long)hpa_sectors);
if (hpa_sectors > sectors) {
ata_dev_printk(dev, KERN_INFO,
"Host Protected Area detected:\n"
@ -1009,7 +1005,11 @@ static u64 ata_hpa_resize(struct ata_device *dev)
return hpa_sectors;
}
}
}
} else if (hpa_sectors < sectors)
ata_dev_printk(dev, KERN_WARNING, "%s 1: hpa sectors (%lld) "
"is smaller than sectors (%lld)\n", __FUNCTION__,
(long long)hpa_sectors, (long long)sectors);
return sectors;
}
@ -2046,10 +2046,6 @@ int ata_dev_configure(struct ata_device *dev)
dev->max_sectors = min_t(unsigned int, ATA_MAX_SECTORS_128,
dev->max_sectors);
/* limit ATAPI DMA to R/W commands only */
if (ata_device_blacklisted(dev) & ATA_HORKAGE_DMA_RW_ONLY)
dev->horkage |= ATA_HORKAGE_DMA_RW_ONLY;
if (ap->ops->dev_config)
ap->ops->dev_config(dev);
@ -3780,8 +3776,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
{ "IOMEGA ZIP 250 ATAPI", NULL, ATA_HORKAGE_NODMA }, /* temporary fix */
/* Weird ATAPI devices */
{ "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 |
ATA_HORKAGE_DMA_RW_ONLY },
{ "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 },
/* Devices we expect to fail diagnostics */
@ -4109,6 +4104,7 @@ static void ata_fill_sg(struct ata_queued_cmd *qc)
if (idx)
ap->prd[idx - 1].flags_len |= cpu_to_le32(ATA_PRD_EOT);
}
/**
* ata_check_atapi_dma - Check whether ATAPI DMA can be supported
* @qc: Metadata associated with taskfile to check
@ -4126,33 +4122,19 @@ static void ata_fill_sg(struct ata_queued_cmd *qc)
int ata_check_atapi_dma(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
int rc = 0; /* Assume ATAPI DMA is OK by default */
/* some drives can only do ATAPI DMA on read/write */
if (unlikely(qc->dev->horkage & ATA_HORKAGE_DMA_RW_ONLY)) {
struct scsi_cmnd *cmd = qc->scsicmd;
u8 *scsicmd = cmd->cmnd;
switch (scsicmd[0]) {
case READ_10:
case WRITE_10:
case READ_12:
case WRITE_12:
case READ_6:
case WRITE_6:
/* atapi dma maybe ok */
break;
default:
/* turn off atapi dma */
return 1;
}
}
/* Don't allow DMA if it isn't multiple of 16 bytes. Quite a
* few ATAPI devices choke on such DMA requests.
*/
if (unlikely(qc->nbytes & 15))
return 1;
if (ap->ops->check_atapi_dma)
rc = ap->ops->check_atapi_dma(qc);
return ap->ops->check_atapi_dma(qc);
return rc;
return 0;
}
/**
* ata_qc_prep - Prepare taskfile for submission
* @qc: Metadata associated with taskfile to be prepared

7
drivers/ata/libata-eh.c
View File

@ -336,6 +336,7 @@ void ata_scsi_error(struct Scsi_Host *host)
}
ata_port_printk(ap, KERN_ERR, "EH pending after %d "
"tries, giving up\n", ATA_EH_MAX_REPEAT);
ap->pflags &= ~ATA_PFLAG_EH_PENDING;
}
/* this run is complete, make sure EH info is clear */
@ -1616,7 +1617,7 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
unsigned long deadline;
unsigned int action;
ata_reset_fn_t reset;
int i, did_followup_srst, rc;
int i, rc;
/* about to reset */
ata_eh_about_to_do(ap, NULL, ehc->i.action & ATA_EH_RESET_MASK);
@ -1665,8 +1666,6 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
/* did prereset() screw up? if so, fix up to avoid oopsing */
if (!reset) {
ata_port_printk(ap, KERN_ERR, "BUG: prereset() requested "
"invalid reset type\n");
if (softreset)
reset = softreset;
else
@ -1689,11 +1688,9 @@ static int ata_eh_reset(struct ata_port *ap, int classify,
rc = ata_do_reset(ap, reset, classes, deadline);
did_followup_srst = 0;
if (reset == hardreset &&
ata_eh_followup_srst_needed(rc, classify, classes)) {
/* okay, let's do follow-up softreset */
did_followup_srst = 1;
reset = softreset;
if (!reset) {

20
drivers/ata/libata-scsi.c
View File

@ -2384,11 +2384,6 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
int using_pio = (dev->flags & ATA_DFLAG_PIO);
int nodata = (scmd->sc_data_direction == DMA_NONE);
if (!using_pio)
/* Check whether ATAPI DMA is safe */
if (ata_check_atapi_dma(qc))
using_pio = 1;
memset(qc->cdb, 0, dev->cdb_len);
memcpy(qc->cdb, scmd->cmnd, scmd->cmd_len);
@ -2401,19 +2396,22 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
}
qc->tf.command = ATA_CMD_PACKET;
qc->nbytes = scmd->request_bufflen;
/* check whether ATAPI DMA is safe */
if (!using_pio && ata_check_atapi_dma(qc))
using_pio = 1;
/* no data, or PIO data xfer */
if (using_pio || nodata) {
/* no data, or PIO data xfer */
if (nodata)
qc->tf.protocol = ATA_PROT_ATAPI_NODATA;
else
qc->tf.protocol = ATA_PROT_ATAPI;
qc->tf.lbam = (8 * 1024) & 0xff;
qc->tf.lbah = (8 * 1024) >> 8;
}
/* DMA data xfer */
else {
} else {
/* DMA data xfer */
qc->tf.protocol = ATA_PROT_ATAPI_DMA;
qc->tf.feature |= ATAPI_PKT_DMA;
@ -2422,8 +2420,6 @@ static unsigned int atapi_xlat(struct ata_queued_cmd *qc)
qc->tf.feature |= ATAPI_DMADIR;
}
qc->nbytes = scmd->request_bufflen;
return 0;
}

4
drivers/ata/pata_hpt37x.c
View File

@ -931,13 +931,13 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
.udma_mask = 0x7f,
.port_ops = &hpt372_port_ops
};
/* HPT374 - UDMA133 */
/* HPT374 - UDMA100 */
static const struct ata_port_info info_hpt374 = {
.sht = &hpt37x_sht,
.flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
.udma_mask = 0x7f,
.udma_mask = 0x3f,
.port_ops = &hpt374_port_ops
};

2
drivers/ata/pata_it821x.c
View File

@ -690,7 +690,7 @@ static struct ata_port_operations it821x_passthru_port_ops = {
.port_start = it821x_port_start,
};
static void __devinit it821x_disable_raid(struct pci_dev *pdev)
static void it821x_disable_raid(struct pci_dev *pdev)
{
/* Reset local CPU, and set BIOS not ready */
pci_write_config_byte(pdev, 0x5E, 0x01);

9
include/linux/libata.h
View File

@ -298,7 +298,6 @@ enum {
ATA_HORKAGE_NODMA = (1 << 1), /* DMA problems */
ATA_HORKAGE_NONCQ = (1 << 2), /* Don't use NCQ */
ATA_HORKAGE_MAX_SEC_128 = (1 << 3), /* Limit max sects to 128 */
ATA_HORKAGE_DMA_RW_ONLY = (1 << 4), /* ATAPI DMA for RW only */
};
enum hsm_task_states {
@ -1088,11 +1087,9 @@ static inline u8 ata_wait_idle(struct ata_port *ap)
{
u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) {
if (ata_msg_warn(ap))
printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%p\n",
status, ap->ioaddr.status_addr);
}
if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ)))
DPRINTK("ATA: abnormal status 0x%X on port 0x%p\n",
status, ap->ioaddr.status_addr);
return status;
}