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| author | Dan Williams <dan.j.williams@intel.com> | 2013-10-22 18:35:19 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-11-27 11:01:07 +0400 |
| commit | ae5fbae0ccd982dfca0ce363036ed92f5b13f150 (patch) | |
| tree | 53dbca1b30f77fa7d0e6bbc7fb42ea280a04ae52 /drivers/scsi/3w-9xxx.c | |
| parent | 2e7babfa892a55588467ef03b545002e32f31528 (diff) | |
| download | linux-ae5fbae0ccd982dfca0ce363036ed92f5b13f150.tar.bz2 | |
[SCSI] libsas: fix usage of ata_tf_to_fis
Since commit 110dd8f19df5 "[SCSI] libsas: fix scr_read/write users and
update the libata documentation" we have been passing pmp=1 and is_cmd=0
to ata_tf_to_fis(). Praveen reports that eSATA attached drives do not
discover correctly. His investigation found that the BIOS was passing
pmp=0 while Linux was passing pmp=1 and failing to discover the drives.
Update libsas to follow the libata example of pulling the pmp setting
from the ata_link and correct is_cmd to be 1 since all tf's submitted
through ->qc_issue are commands. Presumably libsas lldds do not care
about is_cmd as they have sideband mechanisms to perform link
management.
http://marc.info/?l=linux-scsi&m=138179681726990
[jejb: checkpatch fix]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: Praveen Murali <pmurali@logicube.com>
Tested-by: Praveen Murali <pmurali@logicube.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/3w-9xxx.c')
0 files changed, 0 insertions, 0 deletions