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| author | yongari <yongari@FreeBSD.org> | 2009-11-10 20:29:20 +0000 |
|---|---|---|
| committer | yongari <yongari@FreeBSD.org> | 2009-11-10 20:29:20 +0000 |
| commit | 530d0376ecabc0c9766e9d14ccc5b045a1c5981d (patch) | |
| tree | 06193b3555ae6e1e1bd3e84e843daec8c0379bb4 | |
| parent | b7c38a973927671dab1815f52eae7e07736d9482 (diff) | |
| download | FreeBSD-src-530d0376ecabc0c9766e9d14ccc5b045a1c5981d.zip FreeBSD-src-530d0376ecabc0c9766e9d14ccc5b045a1c5981d.tar.gz | |
Controller does not update Tx descriptors(send BDs) after sending
frames so remove unnecessary BUS_DMASYNC_PREREAD and
BUS_DMASYNC_POSTREAD of bus_dmamap_sync(9).
| -rw-r--r-- | sys/dev/bge/if_bge.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/sys/dev/bge/if_bge.c b/sys/dev/bge/if_bge.c index 3ecbcbe..0a1db82 100644 --- a/sys/dev/bge/if_bge.c +++ b/sys/dev/bge/if_bge.c @@ -1165,8 +1165,7 @@ bge_init_tx_ring(struct bge_softc *sc) 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); + sc->bge_cdata.bge_tx_ring_map, BUS_DMASYNC_PREWRITE); /* Initialize transmit producer index for host-memory send ring. */ sc->bge_tx_prodidx = 0; @@ -3323,8 +3322,7 @@ bge_txeof(struct bge_softc *sc) ifp = sc->bge_ifp; bus_dmamap_sync(sc->bge_cdata.bge_tx_ring_tag, - sc->bge_cdata.bge_tx_ring_map, - BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); + sc->bge_cdata.bge_tx_ring_map, BUS_DMASYNC_POSTWRITE); /* * Go through our tx ring and free mbufs for those * frames that have been sent. @@ -3834,8 +3832,7 @@ bge_start_locked(struct ifnet *ifp) return; bus_dmamap_sync(sc->bge_cdata.bge_tx_ring_tag, - sc->bge_cdata.bge_tx_ring_map, - BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); + sc->bge_cdata.bge_tx_ring_map, BUS_DMASYNC_PREWRITE); /* Transmit. */ bge_writembx(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); /* 5700 b2 errata */ |
