| commit | 5040ab67a2c6d5710ba497dc52a8f7035729d7b0 | |
| author | Tejun Heo <tj@kernel.org> | |
| Mon, 11 Jan 2010 02:14:44 +0000 (11 11:14 +0900) | ||
| committer | Jeff Garzik <jgarzik@redhat.com> | |
| Tue, 12 Jan 2010 19:34:14 +0000 (12 14:34 -0500) | ||
| tree | dea2290e50111fde938bfcbb83de0377e7c4d94a | treesnapshot (tar.gz zip) |
| parent | 0b67c7439fe2a5d76602de36854c88e2beab00b0 | commitdiff |
libata: retry link resume if necessary
Interestingly, when SIDPR is used in ata_piix, writes to DET in
SControl sometimes get ignored leading to detection failure. Update
sata_link_resume() such that it reads back SControl after clearing DET
and retry if it's not clear.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: fengxiangjun <fengxiangjun@neusoft.com>
Reported-by: Jim Faulkner <jfaulkne@ccs.neu.edu>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Interestingly, when SIDPR is used in ata_piix, writes to DET in
SControl sometimes get ignored leading to detection failure. Update
sata_link_resume() such that it reads back SControl after clearing DET
and retry if it's not clear.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: fengxiangjun <fengxiangjun@neusoft.com>
Reported-by: Jim Faulkner <jfaulkne@ccs.neu.edu>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| drivers/ata/libata-core.c | diffblobblamehistory | |
| include/linux/libata.h | diffblobblamehistory |