system/freebsd-src
system/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src synced 2024-10-07 09:00:28 +00:00
Code Issues Packages Projects Releases Wiki Activity

Allow XPT_GDEV_STATS for UNCONFIGURED devices.

Browse source 
Queue statistics has nothing to do with presence or absence of INQUIRY
data, etc.  Target mode devices are never configured, but have queues.

MFC after:	2 weeks
This commit is contained in:
Alexander Motin 2017-03-11 18:23:05 +00:00
parent 57223e9994
commit 2ef6e7aea8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=315082
1 changed files with 18 additions and 29 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

47
sys/cam/cam_xpt.c
View file

@ -2724,36 +2724,25 @@ xpt_action_default(union ccb *start_ccb)
}
case XPT_GDEV_STATS:
{
struct cam_ed *dev;
struct ccb_getdevstats *cgds = &start_ccb->cgds;
struct cam_ed *dev = path->device;
struct cam_eb *bus = path->bus;
struct cam_et *tar = path->target;
struct cam_devq *devq = bus->sim->devq;
dev = path->device;
if ((dev->flags & CAM_DEV_UNCONFIGURED) != 0) {
start_ccb->ccb_h.status = CAM_DEV_NOT_THERE;
} else {
struct ccb_getdevstats *cgds;
struct cam_eb *bus;
struct cam_et *tar;
struct cam_devq *devq;
cgds = &start_ccb->cgds;
bus = path->bus;
tar = path->target;
devq = bus->sim->devq;
mtx_lock(&devq->send_mtx);
cgds->dev_openings = dev->ccbq.dev_openings;
cgds->dev_active = dev->ccbq.dev_active;
cgds->allocated = dev->ccbq.allocated;
cgds->queued = cam_ccbq_pending_ccb_count(&dev->ccbq);
cgds->held = cgds->allocated - cgds->dev_active -
cgds->queued;
cgds->last_reset = tar->last_reset;
cgds->maxtags = dev->maxtags;
cgds->mintags = dev->mintags;
if (timevalcmp(&tar->last_reset, &bus->last_reset, <))
cgds->last_reset = bus->last_reset;
mtx_unlock(&devq->send_mtx);
cgds->ccb_h.status = CAM_REQ_CMP;
}
mtx_lock(&devq->send_mtx);
cgds->dev_openings = dev->ccbq.dev_openings;
cgds->dev_active = dev->ccbq.dev_active;
cgds->allocated = dev->ccbq.allocated;
cgds->queued = cam_ccbq_pending_ccb_count(&dev->ccbq);
cgds->held = cgds->allocated - cgds->dev_active - cgds->queued;
cgds->last_reset = tar->last_reset;
cgds->maxtags = dev->maxtags;
cgds->mintags = dev->mintags;
if (timevalcmp(&tar->last_reset, &bus->last_reset, <))
cgds->last_reset = bus->last_reset;
mtx_unlock(&devq->send_mtx);
cgds->ccb_h.status = CAM_REQ_CMP;
break;
}
case XPT_GDEVLIST: