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Zero out Tx/Rx descriptors before using them. Also add missing

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bus_dmamap_sync(9) after Tx descriptor initialization.
This commit is contained in:
Pyun YongHyeon 2009-11-09 23:09:18 +00:00
parent aa94f33338
commit e6bf277eff
1 changed files with 7 additions and 0 deletions
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7
sys/dev/bge/if_bge.c
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@ -1046,6 +1046,7 @@ bge_init_rx_ring_std(struct bge_softc *sc)
{
int error, i;
bzero(sc->bge_ldata.bge_rx_std_ring, BGE_STD_RX_RING_SZ);
sc->bge_std = 0;
for (i = 0; i < BGE_SSLOTS; i++) {
if ((error = bge_newbuf_std(sc, i)) != 0)
@ -1089,6 +1090,7 @@ bge_init_rx_ring_jumbo(struct bge_softc *sc)
struct bge_rcb *rcb;
int error, i;
bzero(sc->bge_ldata.bge_rx_jumbo_ring, BGE_JUMBO_RX_RING_SZ);
sc->bge_jumbo = 0;
for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) {
if ((error = bge_newbuf_jumbo(sc, i)) != 0)
@ -1161,6 +1163,11 @@ bge_init_tx_ring(struct bge_softc *sc)
sc->bge_txcnt = 0;
sc->bge_tx_saved_considx = 0;
bzero(sc->bge_ldata.bge_tx_ring, BGE_TX_RING_SZ);
bus_dmamap_sync(sc->bge_cdata.bge_tx_ring_tag,
sc->bge_cdata.bge_tx_ring_map,
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
/* Initialize transmit producer index for host-memory send ring. */
sc->bge_tx_prodidx = 0;
bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx);