[PATCH 1/8] libata-pmp: update ata_eh_reset() for PMP

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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@xxxxxxxxx>
---
 drivers/ata/libata-eh.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 3cfa860..bc3e690 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -1906,6 +1906,8 @@ 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;
-- 
1.5.0.3


-
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Filesystems]     [Linux SCSI]     [Linux RAID]     [Git]     [Kernel Newbies]     [Linux Newbie]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Samba]     [Device Mapper]

  Powered by Linux