{ "PIONEER DVD-RW DVR-216D", NULL, ATA_HORKAGE_NOSETXFER },
/* devices that don't properly handle queued TRIM commands */
- { "Micron_M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, },
- { "Crucial_CT???M500SSD*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, },
+ { "Micron_M500*", "MU0[1-4]*", ATA_HORKAGE_NO_NCQ_TRIM, },
+ { "Crucial_CT???M500SSD*", "MU0[1-4]*", ATA_HORKAGE_NO_NCQ_TRIM, },
+ { "Micron_M550*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, },
+ { "Crucial_CT???M550SSD*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, },
/*
* Some WD SATA-I drives spin up and down erratically when the link
static struct ata_queued_cmd *ata_qc_new(struct ata_port *ap)
{
struct ata_queued_cmd *qc = NULL;
- unsigned int i;
+ unsigned int i, tag;
/* no command while frozen */
if (unlikely(ap->pflags & ATA_PFLAG_FROZEN))
return NULL;
- /* the last tag is reserved for internal command. */
- for (i = 0; i < ATA_MAX_QUEUE - 1; i++)
- if (!test_and_set_bit(i, &ap->qc_allocated)) {
- qc = __ata_qc_from_tag(ap, i);
+ for (i = 0; i < ATA_MAX_QUEUE; i++) {
+ tag = (i + ap->last_tag + 1) % ATA_MAX_QUEUE;
+
+ /* the last tag is reserved for internal command. */
+ if (tag == ATA_TAG_INTERNAL)
+ continue;
+
+ if (!test_and_set_bit(tag, &ap->qc_allocated)) {
+ qc = __ata_qc_from_tag(ap, tag);
+ qc->tag = tag;
+ ap->last_tag = tag;
break;
}
-
- if (qc)
- qc->tag = i;
+ }
return qc;
}
}
#ifdef CONFIG_PM
-static int ata_port_request_pm(struct ata_port *ap, pm_message_t mesg,
- unsigned int action, unsigned int ehi_flags,
- int *async)
+static void ata_port_request_pm(struct ata_port *ap, pm_message_t mesg,
+ unsigned int action, unsigned int ehi_flags,
+ bool async)
{
struct ata_link *link;
unsigned long flags;
- int rc = 0;
/* Previous resume operation might still be in
* progress. Wait for PM_PENDING to clear.
*/
if (ap->pflags & ATA_PFLAG_PM_PENDING) {
- if (async) {
- *async = -EAGAIN;
- return 0;
- }
ata_port_wait_eh(ap);
WARN_ON(ap->pflags & ATA_PFLAG_PM_PENDING);
}
spin_lock_irqsave(ap->lock, flags);
ap->pm_mesg = mesg;
- if (async)
- ap->pm_result = async;
- else
- ap->pm_result = &rc;
-
ap->pflags |= ATA_PFLAG_PM_PENDING;
ata_for_each_link(link, ap, HOST_FIRST) {
link->eh_info.action |= action;
spin_unlock_irqrestore(ap->lock, flags);
- /* wait and check result */
if (!async) {
ata_port_wait_eh(ap);
WARN_ON(ap->pflags & ATA_PFLAG_PM_PENDING);
}
-
- return rc;
}
-static int __ata_port_suspend_common(struct ata_port *ap, pm_message_t mesg, int *async)
+/*
+ * 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
+ */
+static const unsigned int ata_port_suspend_ehi = ATA_EHI_QUIET
+ | ATA_EHI_NO_AUTOPSY
+ | ATA_EHI_NO_RECOVERY;
+
+static void ata_port_suspend(struct ata_port *ap, pm_message_t mesg)
{
- /*
- * 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
- */
- unsigned int ehi_flags = ATA_EHI_QUIET | ATA_EHI_NO_AUTOPSY |
- ATA_EHI_NO_RECOVERY;
- return ata_port_request_pm(ap, mesg, 0, ehi_flags, async);
+ ata_port_request_pm(ap, mesg, 0, ata_port_suspend_ehi, false);
}
-static int ata_port_suspend_common(struct device *dev, pm_message_t mesg)
+static void ata_port_suspend_async(struct ata_port *ap, pm_message_t mesg)
{
- struct ata_port *ap = to_ata_port(dev);
-
- return __ata_port_suspend_common(ap, mesg, NULL);
+ ata_port_request_pm(ap, mesg, 0, ata_port_suspend_ehi, true);
}
-static int ata_port_suspend(struct device *dev)
+static int ata_port_pm_suspend(struct device *dev)
{
+ struct ata_port *ap = to_ata_port(dev);
+
if (pm_runtime_suspended(dev))
return 0;
- return ata_port_suspend_common(dev, PMSG_SUSPEND);
+ ata_port_suspend(ap, PMSG_SUSPEND);
+ return 0;
}
-static int ata_port_do_freeze(struct device *dev)
+static int ata_port_pm_freeze(struct device *dev)
{
+ struct ata_port *ap = to_ata_port(dev);
+
if (pm_runtime_suspended(dev))
return 0;
- return ata_port_suspend_common(dev, PMSG_FREEZE);
+ ata_port_suspend(ap, PMSG_FREEZE);
+ return 0;
}
-static int ata_port_poweroff(struct device *dev)
+static int ata_port_pm_poweroff(struct device *dev)
{
- return ata_port_suspend_common(dev, PMSG_HIBERNATE);
+ ata_port_suspend(to_ata_port(dev), PMSG_HIBERNATE);
+ return 0;
}
-static int __ata_port_resume_common(struct ata_port *ap, pm_message_t mesg,
- int *async)
-{
- int rc;
+static const unsigned int ata_port_resume_ehi = ATA_EHI_NO_AUTOPSY
+ | ATA_EHI_QUIET;
- rc = ata_port_request_pm(ap, mesg, ATA_EH_RESET,
- ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, async);
- return rc;
+static void ata_port_resume(struct ata_port *ap, pm_message_t mesg)
+{
+ ata_port_request_pm(ap, mesg, ATA_EH_RESET, ata_port_resume_ehi, false);
}
-static int ata_port_resume_common(struct device *dev, pm_message_t mesg)
+static void ata_port_resume_async(struct ata_port *ap, pm_message_t mesg)
{
- struct ata_port *ap = to_ata_port(dev);
-
- return __ata_port_resume_common(ap, mesg, NULL);
+ ata_port_request_pm(ap, mesg, ATA_EH_RESET, ata_port_resume_ehi, true);
}
-static int ata_port_resume(struct device *dev)
+static int ata_port_pm_resume(struct device *dev)
{
- int rc;
-
- rc = ata_port_resume_common(dev, PMSG_RESUME);
- if (!rc) {
- pm_runtime_disable(dev);
- pm_runtime_set_active(dev);
- pm_runtime_enable(dev);
- }
-
- return rc;
+ ata_port_resume_async(to_ata_port(dev), PMSG_RESUME);
+ pm_runtime_disable(dev);
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+ return 0;
}
/*
static int ata_port_runtime_suspend(struct device *dev)
{
- return ata_port_suspend_common(dev, PMSG_AUTO_SUSPEND);
+ ata_port_suspend(to_ata_port(dev), PMSG_AUTO_SUSPEND);
+ return 0;
}
static int ata_port_runtime_resume(struct device *dev)
{
- return ata_port_resume_common(dev, PMSG_AUTO_RESUME);
+ ata_port_resume(to_ata_port(dev), PMSG_AUTO_RESUME);
+ return 0;
}
static const struct dev_pm_ops ata_port_pm_ops = {
- .suspend = ata_port_suspend,
- .resume = ata_port_resume,
- .freeze = ata_port_do_freeze,
- .thaw = ata_port_resume,
- .poweroff = ata_port_poweroff,
- .restore = ata_port_resume,
+ .suspend = ata_port_pm_suspend,
+ .resume = ata_port_pm_resume,
+ .freeze = ata_port_pm_freeze,
+ .thaw = ata_port_pm_resume,
+ .poweroff = ata_port_pm_poweroff,
+ .restore = ata_port_pm_resume,
.runtime_suspend = ata_port_runtime_suspend,
.runtime_resume = ata_port_runtime_resume,
* level. sas suspend/resume is async to allow parallel port recovery
* since sas has multiple ata_port instances per Scsi_Host.
*/
-int ata_sas_port_async_suspend(struct ata_port *ap, int *async)
+void ata_sas_port_suspend(struct ata_port *ap)
{
- return __ata_port_suspend_common(ap, PMSG_SUSPEND, async);
+ ata_port_suspend_async(ap, PMSG_SUSPEND);
}
-EXPORT_SYMBOL_GPL(ata_sas_port_async_suspend);
+EXPORT_SYMBOL_GPL(ata_sas_port_suspend);
-int ata_sas_port_async_resume(struct ata_port *ap, int *async)
+void ata_sas_port_resume(struct ata_port *ap)
{
- return __ata_port_resume_common(ap, PMSG_RESUME, async);
+ ata_port_resume_async(ap, PMSG_RESUME);
}
-EXPORT_SYMBOL_GPL(ata_sas_port_async_resume);
-
+EXPORT_SYMBOL_GPL(ata_sas_port_resume);
/**
* ata_host_suspend - suspend host
static void ata_port_detach(struct ata_port *ap)
{
unsigned long flags;
+ struct ata_link *link;
+ struct ata_device *dev;
if (!ap->ops->error_handler)
goto skip_eh;
cancel_delayed_work_sync(&ap->hotplug_task);
skip_eh:
+ /* clean up zpodd on port removal */
+ ata_for_each_link(link, ap, HOST_FIRST) {
+ ata_for_each_dev(dev, link, ALL) {
+ if (zpodd_dev_enabled(dev))
+ zpodd_exit(dev);
+ }
+ }
if (ap->pmp_link) {
int i;
for (i = 0; i < SATA_PMP_MAX_PORTS; i++)
git.openpandora.org / pandora-kernel.git / blobdiff