diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/nve/if_nve.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/sys/dev/nve/if_nve.c b/sys/dev/nve/if_nve.c index 5fd8e8c..db31d1b 100644 --- a/sys/dev/nve/if_nve.c +++ b/sys/dev/nve/if_nve.c @@ -1277,9 +1277,27 @@ nve_watchdog(struct ifnet *ifp) { struct nve_softc *sc = ifp->if_softc; + NVE_LOCK(sc); + + /* + * The nvidia driver blob defers tx completion notifications. + * Thus, sometimes the watchdog timer will go off when the + * tx engine is fine, but the tx completions are just deferred. + * Try kicking the driver blob to clear out any pending tx + * completions. If that clears up all the pending tx + * operations, then just return without printing the warning + * message or resetting the adapter. + */ + sc->hwapi->pfnDisableInterrupts(sc->hwapi->pADCX); + sc->hwapi->pfnHandleInterrupt(sc->hwapi->pADCX); + sc->hwapi->pfnEnableInterrupts(sc->hwapi->pADCX); + if (sc->pending_txs == 0) { + NVE_UNLOCK(sc); + return; + } + device_printf(sc->dev, "device timeout (%d)\n", sc->pending_txs); - NVE_LOCK(sc); sc->tx_errors++; nve_stop(sc); |
