Please test the following diff if you have an adapter with the BCM5703
chipset.
Set the DMA read watermark to 4 on the BCM5703 chipset in PCI-X mode. This
is needed to prevent some TX timeouts.
Index: if_bge.c
===================================================================
RCS file: /cvs/src/sys/dev/pci/if_bge.c,v
retrieving revision 1.255
diff -u -p -r1.255 if_bge.c
--- if_bge.c 9 Nov 2008 15:08:26 -0000 1.255
+++ if_bge.c 18 Nov 2008 06:34:52 -0000
@@ -1243,6 +1243,10 @@ bge_chipinit(struct bge_softc *sc)
/* 1536 bytes for read, 384 bytes for write. */
dma_rw_ctl |= BGE_PCIDMARWCTL_RD_WAT_SHIFT(7) |
BGE_PCIDMARWCTL_WR_WAT_SHIFT(3);
+ } else if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5703) {
+ /* 512 bytes for read, 384 bytes for write. */
+ dma_rw_ctl |= BGE_PCIDMARWCTL_RD_WAT_SHIFT(4) |
+ BGE_PCIDMARWCTL_WR_WAT_SHIFT(3);
} else {
/* 384 bytes for read and write. */
dma_rw_ctl |= BGE_PCIDMARWCTL_RD_WAT_SHIFT(3) |
--
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