--- src/sys/dev/netif/bge/if_bge.c	2007/03/31 09:31:57	1.64
+++ src/sys/dev/netif/bge/if_bge.c	2007/04/14 04:22:14	1.65
@@ -919,8 +919,11 @@ bge_init_tx_ring(struct bge_softc *sc)
 {
 	sc->bge_txcnt = 0;
 	sc->bge_tx_saved_considx = 0;
+	sc->bge_tx_prodidx = 0;
+
+	/* Initialize transmit producer index for host-memory send ring. */
+	CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);
 
-	CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, 0);
 	/* 5700 b2 errata */
 	if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
 		CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, 0);
@@ -2412,7 +2415,7 @@ bge_start(struct ifnet *ifp)
 	if (!sc->bge_link)
 		return;
 
-	prodidx = CSR_READ_4(sc, BGE_MBX_TX_HOST_PROD0_LO);
+	prodidx = sc->bge_tx_prodidx;
 
 	need_trans = 0;
 	while(sc->bge_cdata.bge_tx_chain[prodidx] == NULL) {
@@ -2461,6 +2464,8 @@ bge_start(struct ifnet *ifp)
 	if (sc->bge_chiprev == BGE_CHIPREV_5700_BX)
 		CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx);
 
+	sc->bge_tx_prodidx = prodidx;
+
 	/*
 	 * Set a timeout in case the chip goes out to lunch.
 	 */