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libata-pmp: update ata_eh_reset() for PMP

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PMP always requires SRST to be enabled.  Also, hardreset reports
classification code from the first device when PMP is attached, not
from the PMP.  Update ata_eh_reset() such that followup softreset is
performed if the controller is PMP capable and the host link is being
reset.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-09-23 13:19:53 +09:00 committed by Jeff Garzik
parent 93328e1145
commit 3495de7336
1 changed files with 2 additions and 0 deletions
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2
drivers/ata/libata-eh.c
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@ -2003,6 +2003,8 @@ static int ata_eh_followup_srst_needed(struct ata_link *link,
return 1;
if (rc != 0)
return 0;
if ((link->ap->flags & ATA_FLAG_PMP) && ata_is_host_link(link))
return 1;
if (classify && !(link->flags & ATA_LFLAG_ASSUME_CLASS) &&
classes[0] == ATA_DEV_UNKNOWN)
return 1;