diff options
| -rw-r--r-- | sys/dev/ic/re.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sys/dev/ic/re.c b/sys/dev/ic/re.c index 5faa23d6f79..aa099255aa7 100644 --- a/sys/dev/ic/re.c +++ b/sys/dev/ic/re.c @@ -1,4 +1,4 @@ -/* $OpenBSD: re.c,v 1.39 2006/08/05 21:38:20 brad Exp $ */ +/* $OpenBSD: re.c,v 1.40 2006/08/06 05:18:22 brad Exp $ */ /* $FreeBSD: if_re.c,v 1.31 2004/09/04 07:54:05 ru Exp $ */ /* * Copyright (c) 1997, 1998-2003 @@ -1372,6 +1372,16 @@ re_txeof(struct rl_softc *sc) } /* + * Some chips will ignore a second TX request issued while an + * existing transmission is in progress. If the transmitter goes + * idle but there are still packets waiting to be sent, we need + * to restart the channel here to flush them out. This only seems + * to be required with the PCIe devices. + */ + if (sc->rl_ldata.rl_tx_free < RL_TX_DESC_CNT(sc)) + CSR_WRITE_1(sc, sc->rl_txstart, RL_TXSTART_START); + + /* * If not all descriptors have been released reaped yet, * reload the timer so that we will eventually get another * interrupt that will cause us to re-enter this routine. |