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tsec(4): Always try to resume the receiver.

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This helps recover from RX stall under heavy loads.

Submitted by:	Piotr Ziecik kosmo ! semihalf dot com
This commit is contained in:
Rafal Jaworowski 2009-02-17 15:59:27 +00:00
parent 0390701af8
commit 371bf7cc81
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=188718
1 changed files with 10 additions and 3 deletions
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13
sys/dev/tsec/if_tsec.c
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@ -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)