diff options
author | Alexander Motin <mav@FreeBSD.org> | 2019-05-28 18:32:04 +0000 |
---|---|---|
committer | Alexander Motin <mav@FreeBSD.org> | 2019-05-28 18:32:04 +0000 |
commit | 3582828053556ca0e05ed9aab3e78008a0595e09 (patch) | |
tree | 09f468df4d9dcb06f63bb357b1b8a641c8e8d5d4 /sys/dev/oce | |
parent | 1bae1560eebda7d1e71ba288197b6a0ad520bbf7 (diff) | |
download | src-3582828053556ca0e05ed9aab3e78008a0595e09.tar.gz src-3582828053556ca0e05ed9aab3e78008a0595e09.zip |
Fix array out of bound panic introduced in r306219.
As I see, different NICs in different configurations may have different
numbers of TX and RX queues. The code was assuming 1:1 mapping between
event queues (interrupts) and TX/RX queues. Since number of interrupts
is set to maximum of TX and RX queues, when those two are different, the
system is doomed.
I have no documentation or deep knowledge about this hardware, so this
change is based on general observations and code reading. If some of my
guesses are wrong, please do better. I just confirmed HP NC550SFP NICs
are working now.
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
Notes
Notes:
svn path=/head/; revision=348332
Diffstat (limited to 'sys/dev/oce')
-rw-r--r-- | sys/dev/oce/oce_if.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/sys/dev/oce/oce_if.c b/sys/dev/oce/oce_if.c index 221a871a7ceb..44fb04fef791 100644 --- a/sys/dev/oce/oce_if.c +++ b/sys/dev/oce/oce_if.c @@ -2394,10 +2394,20 @@ oce_eqd_set_periodic(POCE_SOFTC sc) goto modify_eqd; } - rq = sc->rq[i]; - rxpkts = rq->rx_stats.rx_pkts; - wq = sc->wq[i]; - tx_reqs = wq->tx_stats.tx_reqs; + if (i == 0) { + rq = sc->rq[0]; + rxpkts = rq->rx_stats.rx_pkts; + } else + rxpkts = 0; + if (i + 1 < sc->nrqs) { + rq = sc->rq[i + 1]; + rxpkts += rq->rx_stats.rx_pkts; + } + if (i < sc->nwqs) { + wq = sc->wq[i]; + tx_reqs = wq->tx_stats.tx_reqs; + } else + tx_reqs = 0; now = ticks; if (!aic->ticks || now < aic->ticks || |