The following diff to adjust the early TX threshold needs testing
with any re(4) adapter other than the original 8139C+. Please also
do some performance testing if you can.
Please provide a dmesg.
Index: re.c
===================================================================
RCS file: /cvs/src/sys/dev/ic/re.c,v
retrieving revision 1.94
diff -u -p -r1.94 re.c
--- re.c 11 Oct 2008 23:49:05 -0000 1.94
+++ re.c 12 Oct 2008 05:10:13 -0000
@@ -1976,7 +1976,10 @@ re_init(struct ifnet *ifp)
} else
CSR_WRITE_4(sc, RL_TXCFG, RL_TXCFG_CONFIG);
- CSR_WRITE_1(sc, RL_EARLY_TX_THRESH, 16);
+ if (sc->sc_hwrev == RL_HWREV_8139CPLUS)
+ CSR_WRITE_1(sc, RL_EARLY_TX_THRESH, 16);
+ else
+ CSR_WRITE_1(sc, RL_EARLY_TX_THRESH, RL_EARLYTXTHRESH_CNT);
CSR_WRITE_4(sc, RL_RXCFG, RL_RXCFG_CONFIG);
--
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