Author: mav
Date: Sat Nov 14 20:06:04 2009
New Revision: 199278
URL: http://svn.freebsd.org/changeset/base/199278
Log:
MFp4:
Check SNCQ HBA capability bit when reporting NCQ support to CAM.
Modified:
head/sys/dev/ahci/ahci.c
Modified: head/sys/dev/ahci/ahci.c
==============================================================================
--- head/sys/dev/ahci/ahci.c Sat Nov 14 18:54:25 2009 (r199277)
+++ head/sys/dev/ahci/ahci.c Sat Nov 14 20:06:04 2009 (r199278)
@@ -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 cc
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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