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Commit f0ad30d3 authored by David Milburn's avatar David Milburn Committed by James Bottomley
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[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: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 045d3fe7

drivers/scsi/libsas/sas_ata.c

+1 −0
Original line number Diff line number Diff line
@@ -347,6 +347,7 @@ static int sas_ata_scr_read(struct ata_link *link, unsigned int sc_reg_in, 
static struct ata_port_operations sas_sata_ops = {

	.phy_reset		= sas_ata_phy_reset,

	.post_internal_cmd	= sas_ata_post_internal,

	.qc_defer               = ata_std_qc_defer,

	.qc_prep		= ata_noop_qc_prep,

	.qc_issue		= sas_ata_qc_issue,

	.qc_fill_rtf		= sas_ata_qc_fill_rtf,