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authorDavid Milburn <dmilburn@redhat.com>2010-09-03 18:13:03 -0400
committerJames Bottomley <James.Bottomley@suse.de>2010-10-07 18:06:03 -0400
commitf0ad30d3d2dc924decc0e10b1ff6dc32525a5d99 (patch)
tree6444b24afcb1c4a15c98de738d912698bab6a93a /drivers/scsi
parent045d3fe766b01921e24e2d4178e011b3b09ad4d6 (diff)
[SCSI] libsas: fix NCQ mixing with non-NCQ
Some cards (like mvsas) have issue troubles if non-NCQ commands are mixed with NCQ ones. Fix this by using the libata default NCQ check routine which waits until all NCQ commands are complete before issuing a non-NCQ one. The impact to cards (like aic94xx) which don't need this logic should be minimal Cc: Stable Tree <stable@kernel.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/libsas/sas_ata.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 042153cbbde1..ddbade7beec9 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -347,6 +347,7 @@ static int sas_ata_scr_read(struct ata_link *link, unsigned int sc_reg_in,
347static struct ata_port_operations sas_sata_ops = { 347static struct ata_port_operations sas_sata_ops = {
348 .phy_reset = sas_ata_phy_reset, 348 .phy_reset = sas_ata_phy_reset,
349 .post_internal_cmd = sas_ata_post_internal, 349 .post_internal_cmd = sas_ata_post_internal,
350 .qc_defer = ata_std_qc_defer,
350 .qc_prep = ata_noop_qc_prep, 351 .qc_prep = ata_noop_qc_prep,
351 .qc_issue = sas_ata_qc_issue, 352 .qc_issue = sas_ata_qc_issue,
352 .qc_fill_rtf = sas_ata_qc_fill_rtf, 353 .qc_fill_rtf = sas_ata_qc_fill_rtf,