diff options
| author | scottl <scottl@FreeBSD.org> | 2013-08-09 01:09:02 +0000 |
|---|---|---|
| committer | scottl <scottl@FreeBSD.org> | 2013-08-09 01:09:02 +0000 |
| commit | d1c9a480cbae281f1f04c590e3a63b8fa0cfb03b (patch) | |
| tree | ac7cfbf26f838c299a9cfa43cf4d82c7be05d44e /sys/dev/mps/mps.c | |
| parent | 40b11a17462845928214986df55e541227bdeda1 (diff) | |
| download | FreeBSD-src-d1c9a480cbae281f1f04c590e3a63b8fa0cfb03b.zip FreeBSD-src-d1c9a480cbae281f1f04c590e3a63b8fa0cfb03b.tar.gz | |
Sometimes a device misbehaves so badly that it disrupts the entire system.
Add a tunable that allows such a device to be excluded from the driver.
The id parameter is the target id that the driver assigns to a given device.
dev.mps.X.exclude_ids=<id>,<id>
Obtained from: Netflix
MFC after: 3 days
Diffstat (limited to 'sys/dev/mps/mps.c')
| -rw-r--r-- | sys/dev/mps/mps.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/dev/mps/mps.c b/sys/dev/mps/mps.c index b6c549a..5a6718f 100644 --- a/sys/dev/mps/mps.c +++ b/sys/dev/mps/mps.c @@ -1371,6 +1371,11 @@ mps_get_tunables(struct mps_softc *sc) snprintf(tmpstr, sizeof(tmpstr), "dev.mps.%d.max_chains", device_get_unit(sc->mps_dev)); TUNABLE_INT_FETCH(tmpstr, &sc->max_chains); + + bzero(sc->exclude_ids, sizeof(sc->exclude_ids)); + snprintf(tmpstr, sizeof(tmpstr), "dev.mps.%d.exclude_ids", + device_get_unit(sc->mps_dev)); + TUNABLE_STR_FETCH(tmpstr, sc->exclude_ids, sizeof(sc->exclude_ids)); } static void |
