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[PATCH] libata: fix eh_skip_recovery condition

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* (ata_dev_absent() || ata_dev_ready()) test doesn't indicate
  SUSPENDED state properly.  Fix it.

* Link resuming resets shouldn't be skipped.  Don't skip recovery on
  EHI_RESUME_LINK.  This doesn't matter for host ports as EHI_RESUME
  always coincides with EHI_HOTPLUGGED which makes attached disabled
  devices vacant.  However, PMP reset causes non-hotplug link-resuming
  resets which shouldn't be skipped.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2006-07-10 23:18:23 +09:00 committed by Jeff Garzik
parent 4528e4da79
commit 7c8c2cff81
1 changed files with 4 additions and 3 deletions
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7
drivers/scsi/libata-eh.c
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@ -1843,15 +1843,16 @@ static int ata_eh_skip_recovery(struct ata_port *ap)
for (i = 0; i < ata_port_max_devices(ap); i++) {
struct ata_device *dev = &ap->device[i];
if (ata_dev_absent(dev) || ata_dev_ready(dev))
if (!(dev->flags & ATA_DFLAG_SUSPENDED))
break;
}
if (i == ata_port_max_devices(ap))
return 1;
/* always thaw frozen port and recover failed devices */
if (ap->pflags & ATA_PFLAG_FROZEN || ata_port_nr_enabled(ap))
/* thaw frozen port, resume link and recover failed devices */
if ((ap->pflags & ATA_PFLAG_FROZEN) ||
(ehc->i.flags & ATA_EHI_RESUME_LINK) || ata_port_nr_enabled(ap))
return 0;
/* skip if class codes for all vacant slots are ATA_DEV_NONE */