diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/if_vr.c | 125 | ||||
| -rw-r--r-- | sys/dev/pci/if_vrreg.h | 5 |
2 files changed, 62 insertions, 68 deletions
diff --git a/sys/dev/pci/if_vr.c b/sys/dev/pci/if_vr.c index b80503b00a5..994c05ff292 100644 --- a/sys/dev/pci/if_vr.c +++ b/sys/dev/pci/if_vr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_vr.c,v 1.36 2003/10/10 19:02:24 jason Exp $ */ +/* $OpenBSD: if_vr.c,v 1.37 2003/10/12 02:35:53 jason Exp $ */ /* * Copyright (c) 1997, 1998 @@ -113,12 +113,7 @@ struct cfdriver vr_cd = { 0, "vr", DV_IFNET }; -int vr_newbuf(struct vr_softc *, - struct vr_chain_onefrag *, - struct mbuf *); -int vr_encap(struct vr_softc *, struct vr_chain *, - struct mbuf * ); - +int vr_encap(struct vr_softc *, struct vr_chain *, struct mbuf *); void vr_rxeof(struct vr_softc *); void vr_rxeoc(struct vr_softc *); void vr_txeof(struct vr_softc *); @@ -923,15 +918,35 @@ vr_list_rx_init(sc) struct vr_chain_data *cd; struct vr_list_data *ld; int i; + struct vr_desc *d; cd = &sc->vr_cdata; ld = sc->vr_ldata; for (i = 0; i < VR_RX_LIST_CNT; i++) { - cd->vr_rx_chain[i].vr_ptr = - (struct vr_desc *)&ld->vr_rx_list[i]; - if (vr_newbuf(sc, &cd->vr_rx_chain[i], NULL) == ENOBUFS) - return(ENOBUFS); + d = (struct vr_desc *)&ld->vr_rx_list[i]; + cd->vr_rx_chain[i].vr_ptr = d; + + cd->vr_rx_chain[i].vr_buf = + (u_int8_t *)malloc(MCLBYTES, M_DEVBUF, M_NOWAIT); + if (cd->vr_rx_chain[i].vr_buf == NULL) + return (ENOBUFS); + + if (bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, + 0, BUS_DMA_NOWAIT | BUS_DMA_READ, + &cd->vr_rx_chain[i].vr_map)) + return (ENOBUFS); + + if (bus_dmamap_load(sc->sc_dmat, cd->vr_rx_chain[i].vr_map, + cd->vr_rx_chain[i].vr_buf, MCLBYTES, NULL, BUS_DMA_NOWAIT)) + return (ENOBUFS); + + d->vr_status = htole32(VR_RXSTAT); + d->vr_data = + htole32(cd->vr_rx_chain[i].vr_map->dm_segs[0].ds_addr + + sizeof(u_int64_t)); + d->vr_ctl = htole32(VR_RXCTL | VR_RXLEN); + if (i == (VR_RX_LIST_CNT - 1)) { cd->vr_rx_chain[i].vr_nextdesc = &cd->vr_rx_chain[0]; @@ -953,48 +968,6 @@ vr_list_rx_init(sc) } /* - * Initialize an RX descriptor and attach an MBUF cluster. - * Note: the length fields are only 11 bits wide, which means the - * largest size we can specify is 2047. This is important because - * MCLBYTES is 2048, so we have to subtract one otherwise we'll - * overflow the field and make a mess. - */ -int -vr_newbuf(sc, c, m) - struct vr_softc *sc; - struct vr_chain_onefrag *c; - struct mbuf *m; -{ - struct mbuf *m_new = NULL; - - if (m == NULL) { - MGETHDR(m_new, M_DONTWAIT, MT_DATA); - if (m_new == NULL) - return(ENOBUFS); - - MCLGET(m_new, M_DONTWAIT); - if (!(m_new->m_flags & M_EXT)) { - m_freem(m_new); - return(ENOBUFS); - } - m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; - } else { - m_new = m; - m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; - m_new->m_data = m_new->m_ext.ext_buf; - } - - m_adj(m_new, sizeof(u_int64_t)); - - c->vr_mbuf = m_new; - c->vr_ptr->vr_status = VR_RXSTAT; - c->vr_ptr->vr_data = vtophys(mtod(m_new, caddr_t)); - c->vr_ptr->vr_ctl = VR_RXCTL | VR_RXLEN; - - return(0); -} - -/* * A frame has been uploaded: pass the resulting mbuf chain up to * the higher level protocols. */ @@ -1002,7 +975,6 @@ void vr_rxeof(sc) struct vr_softc *sc; { - struct mbuf *m; struct ifnet *ifp; struct vr_chain_onefrag *cur_rx; int total_len = 0; @@ -1016,7 +988,6 @@ vr_rxeof(sc) cur_rx = sc->vr_cdata.vr_rx_head; sc->vr_cdata.vr_rx_head = cur_rx->vr_nextdesc; - m = cur_rx->vr_mbuf; /* * If an error occurs, update stats, clear the @@ -1043,7 +1014,13 @@ vr_rxeof(sc) if (rxstat & VR_RXSTAT_BUFFERR) printf(" rx buffer error"); printf("\n"); - vr_newbuf(sc, cur_rx, m); + + /* Reinitialize descriptor */ + cur_rx->vr_ptr->vr_status = htole32(VR_RXSTAT); + cur_rx->vr_ptr->vr_data = + htole32(cur_rx->vr_map->dm_segs[0].ds_addr + + sizeof(u_int64_t)); + cur_rx->vr_ptr->vr_ctl = htole32(VR_RXCTL | VR_RXLEN); continue; } @@ -1059,15 +1036,21 @@ vr_rxeof(sc) */ total_len -= ETHER_CRC_LEN; - m0 = m_devget(mtod(m, char *) - ETHER_ALIGN, + m0 = m_devget(cur_rx->vr_buf + sizeof(u_int64_t) - ETHER_ALIGN, total_len + ETHER_ALIGN, 0, ifp, NULL); - vr_newbuf(sc, cur_rx, m); + + /* Reinitialize descriptor */ + cur_rx->vr_ptr->vr_status = htole32(VR_RXSTAT); + cur_rx->vr_ptr->vr_data = + htole32(cur_rx->vr_map->dm_segs[0].ds_addr + + sizeof(u_int64_t)); + cur_rx->vr_ptr->vr_ctl = htole32(VR_RXCTL | VR_RXLEN); + if (m0 == NULL) { ifp->if_ierrors++; continue; } m_adj(m0, ETHER_ALIGN); - m = m0; ifp->if_ipackets++; @@ -1076,10 +1059,10 @@ vr_rxeof(sc) * Handle BPF listeners. Let the BPF user see the packet. */ if (ifp->if_bpf) - bpf_mtap(ifp->if_bpf, m); + bpf_mtap(ifp->if_bpf, m0); #endif /* pass it on. */ - ether_input_mbuf(ifp, m); + ether_input_mbuf(ifp, m0); } return; @@ -1712,8 +1695,9 @@ void vr_stop(sc) struct vr_softc *sc; { - register int i; - struct ifnet *ifp; + int i; + struct ifnet *ifp; + bus_dmamap_t map; ifp = &sc->arpcom.ac_if; ifp->if_timer = 0; @@ -1731,9 +1715,18 @@ vr_stop(sc) * Free data in the RX lists. */ for (i = 0; i < VR_RX_LIST_CNT; i++) { - if (sc->vr_cdata.vr_rx_chain[i].vr_mbuf != NULL) { - m_freem(sc->vr_cdata.vr_rx_chain[i].vr_mbuf); - sc->vr_cdata.vr_rx_chain[i].vr_mbuf = NULL; + + if (sc->vr_cdata.vr_rx_chain[i].vr_buf != NULL) { + free(sc->vr_cdata.vr_rx_chain[i].vr_buf, M_DEVBUF); + sc->vr_cdata.vr_rx_chain[i].vr_buf = NULL; + } + + map = sc->vr_cdata.vr_rx_chain[i].vr_map; + if (map != NULL) { + if (map->dm_segs > 0) + bus_dmamap_unload(sc->sc_dmat, map); + bus_dmamap_destroy(sc->sc_dmat, map); + sc->vr_cdata.vr_rx_chain[i].vr_map = NULL; } } bzero((char *)&sc->vr_ldata->vr_rx_list, diff --git a/sys/dev/pci/if_vrreg.h b/sys/dev/pci/if_vrreg.h index 582cb6dc5a5..3b8be817caf 100644 --- a/sys/dev/pci/if_vrreg.h +++ b/sys/dev/pci/if_vrreg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: if_vrreg.h,v 1.9 2003/10/10 19:02:24 jason Exp $ */ +/* $OpenBSD: if_vrreg.h,v 1.10 2003/10/12 02:35:53 jason Exp $ */ /* * Copyright (c) 1997, 1998 @@ -412,8 +412,9 @@ struct vr_chain { struct vr_chain_onefrag { struct vr_desc *vr_ptr; - struct mbuf *vr_mbuf; struct vr_chain_onefrag *vr_nextdesc; + u_int8_t *vr_buf; + bus_dmamap_t vr_map; }; struct vr_chain_data { |