d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

cxgbe/iw_cxgbe: Pull in some updates to c4iw_wait_for_reply from the

Browse Source 
iw_cxgb4 Linux driver.

Obtained from:	Chelsio Communications
MFC after:	3 days
Sponsored by:	Chelsio Communications
This commit is contained in:
Navdeep Parhar 2017-04-25 16:54:27 +00:00
parent f97074045b
commit 034b4dcfa8
1 changed files with 42 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
sys/dev/cxgbe/iw_cxgbe/iw_cxgbe.h
View File

@ -157,49 +157,70 @@ static inline int c4iw_num_stags(struct c4iw_rdev *rdev)
return (int)(rdev->adap->vres.stag.size >> 5);
}
#define C4IW_WR_TO (10*HZ)
#define C4IW_WR_TO (60*HZ)
struct c4iw_wr_wait {
int ret;
atomic_t completion;
struct completion completion;
};
static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
{
wr_waitp->ret = 0;
atomic_set(&wr_waitp->completion, 0);
init_completion(&wr_waitp->completion);
}
static inline void c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret)
{
wr_waitp->ret = ret;
atomic_set(&wr_waitp->completion, 1);
wakeup(wr_waitp);
complete(&wr_waitp->completion);
}
static inline int
c4iw_wait_for_reply(struct c4iw_rdev *rdev, struct c4iw_wr_wait *wr_waitp,
u32 hwtid, u32 qpid, const char *func)
u32 hwtid, u32 qpid, const char *func)
{
struct adapter *sc = rdev->adap;
unsigned to = C4IW_WR_TO;
int ret;
int timedout = 0;
struct timeval t1, t2;
while (!atomic_read(&wr_waitp->completion)) {
tsleep(wr_waitp, 0, "c4iw_wait", to);
if (SIGPENDING(curthread)) {
printf("%s - Device %s not responding - "
"tid %u qpid %u\n", func,
device_get_nameunit(sc->dev), hwtid, qpid);
if (c4iw_fatal_error(rdev)) {
wr_waitp->ret = -EIO;
break;
}
to = to << 2;
}
}
if (c4iw_fatal_error(rdev)) {
wr_waitp->ret = -EIO;
goto out;
}
getmicrotime(&t1);
do {
ret = wait_for_completion_timeout(&wr_waitp->completion, to);
if (!ret) {
getmicrotime(&t2);
timevalsub(&t2, &t1);
printf("%s - Device %s not responding after %ld.%06ld "
"seconds - tid %u qpid %u\n", func,
device_get_nameunit(sc->dev), t2.tv_sec, t2.tv_usec,
hwtid, qpid);
if (c4iw_fatal_error(rdev)) {
wr_waitp->ret = -EIO;
break;
}
to = to << 2;
timedout = 1;
}
} while (!ret);
out:
if (timedout) {
getmicrotime(&t2);
timevalsub(&t2, &t1);
printf("%s - Device %s reply after %ld.%06ld seconds - "
"tid %u qpid %u\n", func, device_get_nameunit(sc->dev),
t2.tv_sec, t2.tv_usec, hwtid, qpid);
}
if (wr_waitp->ret)
CTR4(KTR_IW_CXGBE, "%s: FW reply %d tid %u qpid %u",
device_get_nameunit(sc->dev), wr_waitp->ret, hwtid, qpid);
CTR4(KTR_IW_CXGBE, "%p: FW reply %d tid %u qpid %u", sc,
wr_waitp->ret, hwtid, qpid);
return (wr_waitp->ret);
}