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

Browse Source 
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata-sff: Reenable Port Multiplier after libata-sff remodeling.
  libata: skip EH autopsy and recovery during suspend
  ahci: AHCI and RAID mode SATA patch for Intel Patsburg DeviceIDs
  ata_piix: IDE Mode SATA patch for Intel Patsburg DeviceIDs
  libata,pata_via: revert ata_wait_idle() removal from ata_sff/via_tf_load()
  ahci: fix hang on failed softreset
  pata_artop: Fix device ID parity check
This commit is contained in:
Linus Torvalds 2010-09-09 20:28:19 -07:00
commit df423dc7f2
10 changed files with 64 additions and 15 deletions
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3
drivers/ata/ahci.c
View File

@ -253,6 +253,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, 0x1c05), board_ahci }, /* CPT RAID */
{ PCI_VDEVICE(INTEL, 0x1c06), board_ahci }, /* CPT RAID */
{ PCI_VDEVICE(INTEL, 0x1c07), board_ahci }, /* CPT RAID */
{ PCI_VDEVICE(INTEL, 0x1d02), board_ahci }, /* PBG AHCI */
{ PCI_VDEVICE(INTEL, 0x1d04), board_ahci }, /* PBG RAID */
{ PCI_VDEVICE(INTEL, 0x1d06), board_ahci }, /* PBG RAID */
/* JMicron 360/1/3/5/6, match class to avoid IDE function */
{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,

4
drivers/ata/ata_piix.c
View File

@ -302,6 +302,10 @@ static const struct pci_device_id piix_pci_tbl[] = {
{ 0x8086, 0x1c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
/* SATA Controller IDE (CPT) */
{ 0x8086, 0x1c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
/* SATA Controller IDE (PBG) */
{ 0x8086, 0x1d00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata },
/* SATA Controller IDE (PBG) */
{ 0x8086, 0x1d08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
{ } /* terminate list */
};

2
drivers/ata/libahci.c
View File

@ -1326,7 +1326,7 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class,
/* issue the first D2H Register FIS */
msecs = 0;
now = jiffies;
if (time_after(now, deadline))
if (time_after(deadline, now))
msecs = jiffies_to_msecs(deadline - now);
tf.ctl |= ATA_SRST;

14
drivers/ata/libata-core.c
View File

@ -5418,6 +5418,7 @@ static int ata_host_request_pm(struct ata_host *host, pm_message_t mesg,
*/
int ata_host_suspend(struct ata_host *host, pm_message_t mesg)
{
unsigned int ehi_flags = ATA_EHI_QUIET;
int rc;
/*
@ -5426,7 +5427,18 @@ int ata_host_suspend(struct ata_host *host, pm_message_t mesg)
*/
ata_lpm_enable(host);
rc = ata_host_request_pm(host, mesg, 0, ATA_EHI_QUIET, 1);
/*
* On some hardware, device fails to respond after spun down
* for suspend. As the device won't be used before being
* resumed, we don't need to touch the device. Ask EH to skip
* the usual stuff and proceed directly to suspend.
*
* http://thread.gmane.org/gmane.linux.ide/46764
*/
if (mesg.event == PM_EVENT_SUSPEND)
ehi_flags |= ATA_EHI_NO_AUTOPSY | ATA_EHI_NO_RECOVERY;
rc = ata_host_request_pm(host, mesg, 0, ehi_flags, 1);
if (rc == 0)
host->dev->power.power_state = mesg;
return rc;

4
drivers/ata/libata-eh.c
View File

@ -3235,6 +3235,10 @@ static int ata_eh_skip_recovery(struct ata_link *link)
if (link->flags & ATA_LFLAG_DISABLED)
return 1;
/* skip if explicitly requested */
if (ehc->i.flags & ATA_EHI_NO_RECOVERY)
return 1;
/* thaw frozen port and recover failed devices */
if ((ap->pflags & ATA_PFLAG_FROZEN) || ata_link_nr_enabled(link))
return 0;

41
drivers/ata/libata-sff.c
View File

@ -418,6 +418,7 @@ void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
if (ioaddr->ctl_addr)
iowrite8(tf->ctl, ioaddr->ctl_addr);
ap->last_ctl = tf->ctl;
ata_wait_idle(ap);
}
if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
@ -453,6 +454,8 @@ void ata_sff_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
iowrite8(tf->device, ioaddr->device_addr);
VPRINTK("device 0x%X\n", tf->device);
}
ata_wait_idle(ap);
}
EXPORT_SYMBOL_GPL(ata_sff_tf_load);
@ -1042,7 +1045,8 @@ static void ata_hsm_qc_complete(struct ata_queued_cmd *qc, int in_wq)
int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
u8 status, int in_wq)
{
struct ata_eh_info *ehi = &ap->link.eh_info;
struct ata_link *link = qc->dev->link;
struct ata_eh_info *ehi = &link->eh_info;
unsigned long flags = 0;
int poll_next;
@ -1298,8 +1302,14 @@ fsm_start:
}
EXPORT_SYMBOL_GPL(ata_sff_hsm_move);
void ata_sff_queue_pio_task(struct ata_port *ap, unsigned long delay)
void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay)
{
struct ata_port *ap = link->ap;
WARN_ON((ap->sff_pio_task_link != NULL) &&
(ap->sff_pio_task_link != link));
ap->sff_pio_task_link = link;
/* may fail if ata_sff_flush_pio_task() in progress */
queue_delayed_work(ata_sff_wq, &ap->sff_pio_task,
msecs_to_jiffies(delay));
@ -1321,14 +1331,18 @@ static void ata_sff_pio_task(struct work_struct *work)
{
struct ata_port *ap =
container_of(work, struct ata_port, sff_pio_task.work);
struct ata_link *link = ap->sff_pio_task_link;
struct ata_queued_cmd *qc;
u8 status;
int poll_next;
BUG_ON(ap->sff_pio_task_link == NULL);
/* qc can be NULL if timeout occurred */
qc = ata_qc_from_tag(ap, ap->link.active_tag);
if (!qc)
qc = ata_qc_from_tag(ap, link->active_tag);
if (!qc) {
ap->sff_pio_task_link = NULL;
return;
}
fsm_start:
WARN_ON_ONCE(ap->hsm_task_state == HSM_ST_IDLE);
@ -1345,11 +1359,16 @@ fsm_start:
msleep(2);
status = ata_sff_busy_wait(ap, ATA_BUSY, 10);
if (status & ATA_BUSY) {
ata_sff_queue_pio_task(ap, ATA_SHORT_PAUSE);
ata_sff_queue_pio_task(link, ATA_SHORT_PAUSE);
return;
}
}
/*
* hsm_move() may trigger another command to be processed.
* clean the link beforehand.
*/
ap->sff_pio_task_link = NULL;
/* move the HSM */
poll_next = ata_sff_hsm_move(ap, qc, status, 1);
@ -1376,6 +1395,7 @@ fsm_start:
unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ata_link *link = qc->dev->link;
/* Use polling pio if the LLD doesn't handle
* interrupt driven pio and atapi CDB interrupt.
@ -1396,7 +1416,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
ap->hsm_task_state = HSM_ST_LAST;
if (qc->tf.flags & ATA_TFLAG_POLLING)
ata_sff_queue_pio_task(ap, 0);
ata_sff_queue_pio_task(link, 0);
break;
@ -1409,7 +1429,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
if (qc->tf.flags & ATA_TFLAG_WRITE) {
/* PIO data out protocol */
ap->hsm_task_state = HSM_ST_FIRST;
ata_sff_queue_pio_task(ap, 0);
ata_sff_queue_pio_task(link, 0);
/* always send first data block using the
* ata_sff_pio_task() codepath.
@ -1419,7 +1439,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
ap->hsm_task_state = HSM_ST;
if (qc->tf.flags & ATA_TFLAG_POLLING)
ata_sff_queue_pio_task(ap, 0);
ata_sff_queue_pio_task(link, 0);
/* if polling, ata_sff_pio_task() handles the
* rest. otherwise, interrupt handler takes
@ -1441,7 +1461,7 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc)
/* send cdb by polling if no cdb interrupt */
if ((!(qc->dev->flags & ATA_DFLAG_CDB_INTR)) ||
(qc->tf.flags & ATA_TFLAG_POLLING))
ata_sff_queue_pio_task(ap, 0);
ata_sff_queue_pio_task(link, 0);
break;
default:
@ -2734,6 +2754,7 @@ EXPORT_SYMBOL_GPL(ata_bmdma_dumb_qc_prep);
unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct ata_link *link = qc->dev->link;
/* defer PIO handling to sff_qc_issue */
if (!ata_is_dma(qc->tf.protocol))
@ -2762,7 +2783,7 @@ unsigned int ata_bmdma_qc_issue(struct ata_queued_cmd *qc)
/* send cdb by polling if no cdb interrupt */
if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR))
ata_sff_queue_pio_task(ap, 0);
ata_sff_queue_pio_task(link, 0);
break;
default:

3
drivers/ata/pata_artop.c
View File

@ -74,7 +74,8 @@ static int artop6260_pre_reset(struct ata_link *link, unsigned long deadline)
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
/* Odd numbered device ids are the units with enable bits (the -R cards) */
if (pdev->device % 1 && !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no]))
if ((pdev->device & 1) &&
!pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no]))
return -ENOENT;
return ata_sff_prereset(link, deadline);

2
drivers/ata/pata_via.c
View File

@ -417,6 +417,8 @@ static void via_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
tf->lbam,
tf->lbah);
}
ata_wait_idle(ap);
}
static int via_port_start(struct ata_port *ap)

2
drivers/ata/sata_mv.c
View File

@ -2284,7 +2284,7 @@ static unsigned int mv_qc_issue_fis(struct ata_queued_cmd *qc)
}
if (qc->tf.flags & ATA_TFLAG_POLLING)
ata_sff_queue_pio_task(ap, 0);
ata_sff_queue_pio_task(link, 0);
return 0;
}

4
include/linux/libata.h
View File

@ -335,6 +335,7 @@ enum {
ATA_EHI_HOTPLUGGED = (1 << 0), /* could have been hotplugged */
ATA_EHI_NO_AUTOPSY = (1 << 2), /* no autopsy */
ATA_EHI_QUIET = (1 << 3), /* be quiet */
ATA_EHI_NO_RECOVERY = (1 << 4), /* no recovery */
ATA_EHI_DID_SOFTRESET = (1 << 16), /* already soft-reset this port */
ATA_EHI_DID_HARDRESET = (1 << 17), /* already soft-reset this port */
@ -723,6 +724,7 @@ struct ata_port {
struct ata_ioports ioaddr; /* ATA cmd/ctl/dma register blocks */
u8 ctl; /* cache of ATA control register */
u8 last_ctl; /* Cache last written value */
struct ata_link* sff_pio_task_link; /* link currently used */
struct delayed_work sff_pio_task;
#ifdef CONFIG_ATA_BMDMA
struct ata_bmdma_prd *bmdma_prd; /* BMDMA SG list */
@ -1594,7 +1596,7 @@ extern void ata_sff_irq_on(struct ata_port *ap);
extern void ata_sff_irq_clear(struct ata_port *ap);
extern int ata_sff_hsm_move(struct ata_port *ap, struct ata_queued_cmd *qc,
u8 status, int in_wq);
extern void ata_sff_queue_pio_task(struct ata_port *ap, unsigned long delay);
extern void ata_sff_queue_pio_task(struct ata_link *link, unsigned long delay);
extern unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc);
extern bool ata_sff_qc_fill_rtf(struct ata_queued_cmd *qc);
extern unsigned int ata_sff_port_intr(struct ata_port *ap,