removed unused mediachange routines
changed ethernet receive to handle unexpected dma shutdowns
This commit is contained in:
dbj
parent
235c2b2545
commit
dff3edd66d
@ -1,4 +1,4 @@
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/* $NetBSD: mb8795.c,v 1.20 2001/01/14 17:33:48 thorpej Exp $ */
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/* $NetBSD: mb8795.c,v 1.21 2001/04/02 05:29:43 dbj Exp $ */
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/*
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* Copyright (c) 1998 Darrin B. Jewell
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* All rights reserved.
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@ -112,16 +112,8 @@ int xe_debug = 0;
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* and the Fujitsu Manchester Encoder/Decoder (MB502).
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*/
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int debugipkt = 0;
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void mb8795_shutdown __P((void *));
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#if 0
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int mb8795_mediachange __P((struct ifnet *));
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void mb8795_mediastatus __P((struct ifnet *, struct ifmediareq *));
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#endif
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struct mbuf * mb8795_rxdmamap_load __P((struct mb8795_softc *,
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bus_dmamap_t map));
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@ -150,21 +142,6 @@ mb8795_config(sc)
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ifp->if_flags =
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IFF_BROADCAST | IFF_NOTRAILERS;
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#if 0
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/* Initialize ifmedia structures. */
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ifmedia_init(&sc->sc_media, 0, mb8795_mediachange, mb8795_mediastatus);
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if (sc->sc_supmedia != NULL) {
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int i;
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for (i = 0; i < sc->sc_nsupmedia; i++)
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ifmedia_add(&sc->sc_media, sc->sc_supmedia[i],
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0, NULL);
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ifmedia_set(&sc->sc_media, sc->sc_defaultmedia);
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} else {
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ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_MANUAL, 0, NULL);
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ifmedia_set(&sc->sc_media, IFM_ETHER|IFM_MANUAL);
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}
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#endif
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/* Attach the interface. */
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if_attach(ifp);
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ether_ifattach(ifp, sc->sc_enaddr);
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@ -235,26 +212,32 @@ mb8795_config(sc)
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/****************************************************************/
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#if 0
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#ifdef XE_DEBUG
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#define XCHR(x) "0123456789abcdef"[(x) & 0xf]
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static void
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hex_dump(unsigned char *pkt, size_t len)
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xe_hex_dump(unsigned char *pkt, size_t len)
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{
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size_t i, j;
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printf("0000: ");
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printf("00000000 ");
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for(i=0; i<len; i++) {
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printf("%c%c ", XCHR(pkt[i]>>4), XCHR(pkt[i]));
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if ((i+1) % 16 == 8) {
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printf(" ");
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}
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if ((i+1) % 16 == 0) {
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printf(" %c", '"');
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for(j=0; j<16; j++)
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printf(" %c", '|');
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for(j=0; j<16; j++) {
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printf("%c", pkt[i-15+j]>=32 && pkt[i-15+j]<127?pkt[i-15+j]:'.');
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printf("%c\n%c%c%c%c: ", '"', XCHR((i+1)>>12),
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XCHR((i+1)>>8), XCHR((i+1)>>4), XCHR(i+1));
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}
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printf("%c\n%c%c%c%c%c%c%c%c ", '|',
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XCHR((i+1)>>28),XCHR((i+1)>>24),XCHR((i+1)>>20),XCHR((i+1)>>16),
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XCHR((i+1)>>12), XCHR((i+1)>>8), XCHR((i+1)>>4), XCHR(i+1));
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}
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}
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printf("\n");
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}
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#undef XCHR
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#endif
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/*
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@ -287,17 +270,23 @@ mb8795_rint(sc)
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if (rxstat & XE_RXSTAT_ALIGNERR) {
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DPRINTF(("%s: rx alignment error\n",
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sc->sc_dev.dv_xname));
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#if 0
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error++;
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#endif
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}
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if (rxstat & XE_RXSTAT_CRCERR) {
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DPRINTF(("%s: rx CRC error\n",
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sc->sc_dev.dv_xname));
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#if 0
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error++;
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#endif
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}
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if (rxstat & XE_RXSTAT_OVERFLOW) {
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DPRINTF(("%s: rx overflow error\n",
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sc->sc_dev.dv_xname));
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#if 0
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error++;
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#endif
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}
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if (error) {
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@ -326,14 +315,6 @@ mb8795_rint(sc)
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bus_dmamap_sync(sc->sc_rx_dmat, map,
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0, map->dm_mapsize, BUS_DMASYNC_POSTREAD);
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/* Find receive length and chop off CRC */
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/* @@@ assumes packet is all in first segment
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*/
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m->m_pkthdr.len = map->dm_segs[0].ds_xfer_len-4;
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m->m_len = map->dm_segs[0].ds_xfer_len-4;
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m->m_pkthdr.rcvif = ifp;
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bus_dmamap_unload(sc->sc_rx_dmat, map);
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/* Install a fresh mbuf for next packet */
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@ -341,6 +322,21 @@ mb8795_rint(sc)
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sc->sc_rx_mb_head[sc->sc_rx_handled_idx] =
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mb8795_rxdmamap_load(sc,map);
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/* Punt runt packets, these may be caused by dma restarts */
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/* @@@ assumes packet is all in first segment */
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if (map->dm_segs[0].ds_xfer_len < ETHER_MIN_LEN) {
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m_freem(m);
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continue;
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}
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/* Find receive length and chop off CRC */
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/* @@@ assumes packet is all in first segment
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*/
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m->m_pkthdr.len = map->dm_segs[0].ds_xfer_len-4;
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m->m_len = map->dm_segs[0].ds_xfer_len-4;
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m->m_pkthdr.rcvif = ifp;
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/* enable interrupts while we process the packet */
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splx(s);
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@ -348,14 +344,15 @@ mb8795_rint(sc)
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/* Peek at the packet */
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DPRINTF(("%s: received packet, at VA 0x%08x-0x%08x,len %d\n",
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sc->sc_dev.dv_xname,mtod(m,u_char *),mtod(m,u_char *)+m->m_len,m->m_len));
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#if 0
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hex_dump(mtod(m,u_char *), m->m_pkthdr.len < 255 ? m->m_pkthdr.len : 128 );
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#endif
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if (xe_debug > 3) {
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xe_hex_dump(mtod(m,u_char *), m->m_pkthdr.len);
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} else if (xe_debug > 2) {
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xe_hex_dump(mtod(m,u_char *), m->m_pkthdr.len < 255 ? m->m_pkthdr.len : 128 );
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}
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#endif
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{
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ifp->if_ipackets++;
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debugipkt++;
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/* Pass the packet up. */
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(*ifp->if_input)(ifp, m);
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@ -518,9 +515,14 @@ mb8795_init(sc)
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bus_space_write_1(sc->sc_bst,sc->sc_bsh, XE_RXMODE, XE_RXMODE_NORMAL);
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#if 0
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bus_space_write_1(sc->sc_bst,sc->sc_bsh, XE_RXMASK,
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XE_RXMASK_OKIE | XE_RXMASK_RESETIE | XE_RXMASK_SHORTIE |
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XE_RXMASK_ALIGNERRIE | XE_RXMASK_CRCERRIE | XE_RXMASK_OVERFLOWIE);
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#else
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bus_space_write_1(sc->sc_bst,sc->sc_bsh, XE_RXMASK,
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XE_RXMASK_OKIE | XE_RXMASK_RESETIE | XE_RXMASK_SHORTIE);
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#endif
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bus_space_write_1(sc->sc_bst,sc->sc_bsh, XE_RXSTAT, XE_RXSTAT_CLEAR);
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@ -929,7 +931,14 @@ mb8795_rxdma_shutdown(arg)
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{
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struct mb8795_softc *sc = arg;
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panic("%s: mb8795_rxdma_shutdown() unexpected", sc->sc_dev.dv_xname);
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DPRINTF(("%s: mb8795_rxdma_shutdown(), restarting.\n",sc->sc_dev.dv_xname));
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#if 0
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/* Back up the dma pointers to only those that are completed */
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sc->sc_rx_loaded_idx = sc->sc_rx_completed_idx;
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#endif
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nextdma_start(sc->sc_rx_nd, DMACSR_SETREAD);
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}
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@ -1055,36 +1064,4 @@ mb8795_txdma_continue(arg)
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return(map);
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}
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/****************************************************************/
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#if 0
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int
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mb8795_mediachange(ifp)
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struct ifnet *ifp;
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{
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struct mb8795_softc *sc = ifp->if_softc;
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if (sc->sc_mediachange)
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return ((*sc->sc_mediachange)(sc));
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return (0);
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}
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void
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mb8795_mediastatus(ifp, ifmr)
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struct ifnet *ifp;
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struct ifmediareq *ifmr;
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{
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struct mb8795_softc *sc = ifp->if_softc;
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if ((ifp->if_flags & IFF_UP) == 0)
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return;
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ifmr->ifm_status = IFM_AVALID;
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if (sc->sc_havecarrier)
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ifmr->ifm_status |= IFM_ACTIVE;
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if (sc->sc_mediastatus)
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(*sc->sc_mediastatus)(sc, ifmr);
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}
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#endif
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/****************************************************************/
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