diff options
| author | raj <raj@FreeBSD.org> | 2009-02-17 15:59:27 +0000 |
|---|---|---|
| committer | raj <raj@FreeBSD.org> | 2009-02-17 15:59:27 +0000 |
| commit | bcfd84f1528b9e96925de6f9e2b36c19bdb4ad13 (patch) | |
| tree | 2ad5da829fa8b6d0f50a87905ea4e6d7f9b3703b /sys/dev/tsec | |
| parent | 1166819402f80a20b7cae70f3086a2a7cba4c688 (diff) | |
| download | FreeBSD-src-bcfd84f1528b9e96925de6f9e2b36c19bdb4ad13.zip FreeBSD-src-bcfd84f1528b9e96925de6f9e2b36c19bdb4ad13.tar.gz | |
tsec(4): Always try to resume the receiver.
This helps recover from RX stall under heavy loads.
Submitted by: Piotr Ziecik kosmo ! semihalf dot com
Diffstat (limited to 'sys/dev/tsec')
| -rw-r--r-- | sys/dev/tsec/if_tsec.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/sys/dev/tsec/if_tsec.c b/sys/dev/tsec/if_tsec.c index f16a1d3..eed6004 100644 --- a/sys/dev/tsec/if_tsec.c +++ b/sys/dev/tsec/if_tsec.c @@ -1363,6 +1363,16 @@ tsec_receive_intr_locked(struct tsec_softc *sc, int count) bus_dmamap_sync(sc->tsec_rx_dtag, sc->tsec_rx_dmap, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); + + /* + * Make sure TSEC receiver is not halted. + * + * Various conditions can stop the TSEC receiver, but not all are + * signaled and handled by error interrupt, so make sure the receiver + * is running. Writing to TSEC_REG_RSTAT restarts the receiver when + * halted, and is harmless if already running. + */ + TSEC_WRITE(sc, TSEC_REG_RSTAT, TSEC_RSTAT_QHLT); } void @@ -1507,9 +1517,6 @@ tsec_error_intr_locked(struct tsec_softc *sc, int count) /* Get data from RX buffers */ tsec_receive_intr_locked(sc, count); - - /* Make receiver again active */ - TSEC_WRITE(sc, TSEC_REG_RSTAT, TSEC_RSTAT_QHLT); } if (ifp->if_flags & IFF_DEBUG) |
