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authormav <mav@FreeBSD.org>2009-11-14 20:06:04 +0000
committermav <mav@FreeBSD.org>2009-11-14 20:06:04 +0000
commit65ae6957dab32b28124a7f314768cb788541ec8c (patch)
tree148fe7d329f3e34efce66e64ea024e984e62b69d /sys/dev/ahci
parent272f28263b1eec62691d61e72818912396f7d5e5 (diff)
downloadFreeBSD-src-65ae6957dab32b28124a7f314768cb788541ec8c.zip
FreeBSD-src-65ae6957dab32b28124a7f314768cb788541ec8c.tar.gz
MFp4:
Check SNCQ HBA capability bit when reporting NCQ support to CAM.
Diffstat (limited to 'sys/dev/ahci')
-rw-r--r--sys/dev/ahci/ahci.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/dev/ahci/ahci.c b/sys/dev/ahci/ahci.c
index c46d0ce..fed095b 100644
--- a/sys/dev/ahci/ahci.c
+++ b/sys/dev/ahci/ahci.c
@@ -734,7 +734,9 @@ ahci_ch_attach(device_t dev)
/* Construct SIM entry */
ch->sim = cam_sim_alloc(ahciaction, ahcipoll, "ahcich", ch,
device_get_unit(dev), &ch->mtx,
- min(2, ch->numslots), ch->numslots, devq);
+ min(2, ch->numslots),
+ (ch->caps & AHCI_CAP_SNCQ) ? ch->numslots : 0,
+ devq);
if (ch->sim == NULL) {
device_printf(dev, "unable to allocate sim\n");
error = ENOMEM;
@@ -2119,7 +2121,9 @@ ahciaction(struct cam_sim *sim, union ccb *ccb)
struct ccb_pathinq *cpi = &ccb->cpi;
cpi->version_num = 1; /* XXX??? */
- cpi->hba_inquiry = PI_SDTR_ABLE | PI_TAG_ABLE;
+ cpi->hba_inquiry = PI_SDTR_ABLE;
+ if (ch->caps & AHCI_CAP_SNCQ)
+ cpi->hba_inquiry |= PI_TAG_ABLE;
if (ch->caps & AHCI_CAP_SPM)
cpi->hba_inquiry |= PI_SATAPM;
cpi->target_sprt = 0;
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