/* $OpenBSD: be.c,v 1.40 2006/05/27 23:59:07 jason Exp $ */ /* * Copyright (c) 1998 Theo de Raadt and Jason L. Wright. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #include #include #include #endif #include #include #include #include #include #include #include #include #include int bematch(struct device *, void *, void *); void beattach(struct device *, struct device *, void *); void beinit(struct besoftc *); void bestart(struct ifnet *); void bestop(struct besoftc *); void bewatchdog(struct ifnet *); int beioctl(struct ifnet *, u_long, caddr_t); void bereset(struct besoftc *); int beintr(void *); int berint(struct besoftc *); int betint(struct besoftc *); int beqint(struct besoftc *, u_int32_t); int beeint(struct besoftc *, u_int32_t); void be_read(struct besoftc *, int, int); void be_tcvr_idle(struct besoftc *); void be_tcvr_init(struct besoftc *); void be_tcvr_write(struct besoftc *, u_int8_t, u_int16_t); void be_tcvr_write_bit(struct besoftc *, int); int be_tcvr_read_bit1(struct besoftc *); int be_tcvr_read_bit2(struct besoftc *); int be_tcvr_read(struct besoftc *, u_int8_t); void be_ifmedia_sts(struct ifnet *, struct ifmediareq *); int be_ifmedia_upd(struct ifnet *); void be_mcreset(struct besoftc *); void betick(void *); void be_tx_harvest(struct besoftc *); struct cfdriver be_cd = { NULL, "be", DV_IFNET }; struct cfattach be_ca = { sizeof(struct besoftc), bematch, beattach }; int bematch(parent, vcf, aux) struct device *parent; void *vcf, *aux; { struct cfdata *cf = vcf; struct confargs *ca = aux; register struct romaux *ra = &ca->ca_ra; if (strcmp(cf->cf_driver->cd_name, ra->ra_name)) return (0); return (1); } void beattach(parent, self, aux) struct device *parent, *self; void *aux; { struct qec_softc *qec = (struct qec_softc *)parent; struct besoftc *sc = (struct besoftc *)self; struct ifnet *ifp = &sc->sc_arpcom.ac_if; struct confargs *ca = aux; struct bootpath *bp; extern void myetheraddr(u_char *); int pri, bmsr; if (ca->ca_ra.ra_nintr != 1) { printf(": expected 1 interrupt, got %d\n", ca->ca_ra.ra_nintr); return; } pri = ca->ca_ra.ra_intr[0].int_pri; sc->sc_rev = getpropint(ca->ca_ra.ra_node, "board-version", -1); timeout_set(&sc->sc_tick, betick, sc); sc->sc_cr = mapiodev(&ca->ca_ra.ra_reg[0], 0, sizeof(struct be_cregs)); sc->sc_br = mapiodev(&ca->ca_ra.ra_reg[1], 0, sizeof(struct be_bregs)); sc->sc_tr = mapiodev(&ca->ca_ra.ra_reg[2], 0, sizeof(struct be_tregs)); sc->sc_qec = qec; sc->sc_qr = qec->sc_regs; bestop(sc); sc->sc_channel = getpropint(ca->ca_ra.ra_node, "channel#", -1); if (sc->sc_channel == -1) sc->sc_channel = 0; sc->sc_burst = getpropint(ca->ca_ra.ra_node, "burst-sizes", -1); if (sc->sc_burst == -1) sc->sc_burst = qec->sc_burst; /* Clamp at parent's burst sizes */ sc->sc_burst &= qec->sc_burst; sc->sc_ih.ih_fun = beintr; sc->sc_ih.ih_arg = sc; intr_establish(pri, &sc->sc_ih, IPL_NET, sc->sc_dev.dv_xname); myetheraddr(sc->sc_arpcom.ac_enaddr); be_tcvr_init(sc); ifmedia_init(&sc->sc_ifmedia, 0, be_ifmedia_upd, be_ifmedia_sts); bmsr = be_tcvr_read(sc, PHY_BMSR); if (bmsr == BE_TCVR_READ_INVALID) return; if (bmsr & PHY_BMSR_10BASET_HALF) { ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_10_T, 0, NULL); ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_10_T | IFM_HDX, 0, NULL); sc->sc_ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; } if (bmsr & PHY_BMSR_10BASET_FULL) { ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_10_T | IFM_FDX, 0, NULL); sc->sc_ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX; } if (bmsr & PHY_BMSR_100BASETX_HALF) { ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_100_TX, 0, NULL); ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_100_TX | IFM_HDX, 0, NULL); sc->sc_ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX; } if (bmsr & PHY_BMSR_100BASETX_FULL) { ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_100_TX | IFM_FDX, 0, NULL); sc->sc_ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX; } if (bmsr & PHY_BMSR_100BASET4) { ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_100_T4, 0, NULL); sc->sc_ifmedia.ifm_media = IFM_ETHER | IFM_100_T4; } if (bmsr & PHY_BMSR_ANC) { ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL); sc->sc_ifmedia.ifm_media = IFM_ETHER | IFM_AUTO; } ifmedia_set(&sc->sc_ifmedia, sc->sc_ifmedia.ifm_media); bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ); ifp->if_softc = sc; ifp->if_start = bestart; ifp->if_ioctl = beioctl; ifp->if_watchdog = bewatchdog; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS | IFF_MULTICAST; IFQ_SET_MAXLEN(&ifp->if_snd, BE_TX_RING_SIZE); IFQ_SET_READY(&ifp->if_snd); /* Attach the interface. */ if_attach(ifp); ether_ifattach(ifp); printf(" pri %d: rev %x address %s\n", pri, sc->sc_rev, ether_sprintf(sc->sc_arpcom.ac_enaddr)); bp = ca->ca_ra.ra_bp; if (bp != NULL && strcmp(bp->name, "be") == 0 && sc->sc_dev.dv_unit == bp->val[1]) bp->dev = &sc->sc_dev; } /* * Start output on interface. * We make two assumptions here: * 1) that the current priority is set to splnet _before_ this code * is called *and* is returned to the appropriate priority after * return * 2) that the IFF_OACTIVE flag is checked before this code is called * (i.e. that the output part of the interface is idle) */ void bestart(ifp) struct ifnet *ifp; { struct besoftc *sc = (struct besoftc *)ifp->if_softc; struct mbuf *m; int bix, len, cnt; if (sc->sc_no_td > 0) { /* Try to free previous stuff */ be_tx_harvest(sc); } if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) return; bix = sc->sc_last_td; cnt = sc->sc_no_td; for (;;) { IFQ_POLL(&ifp->if_snd, m); if (m == NULL) break; IFQ_DEQUEUE(&ifp->if_snd, m); /* * Copy the mbuf chain into the transmit buffer. */ len = qec_put(sc->sc_bufs->tx_buf[bix & BE_TX_RING_MASK], m); /* * Initialize transmit registers and start transmission */ sc->sc_desc->be_txd[bix].tx_flags = BE_TXD_OWN | BE_TXD_SOP | BE_TXD_EOP | (len & BE_TXD_LENGTH); sc->sc_cr->ctrl = BE_CR_CTRL_TWAKEUP; if (++bix == BE_TX_RING_MAXSIZE) bix = 0; if (++cnt == BE_TX_RING_SIZE) { ifp->if_flags |= IFF_OACTIVE; break; } } if (cnt > BE_TX_HIGH_WATER) { /* turn on interrupt */ sc->sc_tx_intr = 1; sc->sc_cr->timask = 0; } if (cnt != sc->sc_no_td) { ifp->if_timer = 5; sc->sc_last_td = bix; sc->sc_no_td = cnt; } } void bestop(sc) struct besoftc *sc; { int tries; sc->sc_arpcom.ac_if.if_timer = 0; if (timeout_pending(&sc->sc_tick)) timeout_del(&sc->sc_tick); tries = 32; sc->sc_br->tx_cfg = 0; while (sc->sc_br->tx_cfg != 0 && --tries) DELAY(20); tries = 32; sc->sc_br->rx_cfg = 0; while (sc->sc_br->rx_cfg != 0 && --tries) DELAY(20); } /* * Reset interface. */ void bereset(sc) struct besoftc *sc; { int s; s = splnet(); bestop(sc); beinit(sc); splx(s); } void bewatchdog(ifp) struct ifnet *ifp; { struct besoftc *sc = ifp->if_softc; log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname); ++sc->sc_arpcom.ac_if.if_oerrors; bereset(sc); } int beintr(v) void *v; { struct besoftc *sc = (struct besoftc *)v; u_int32_t whyq, whyb, whyc; int r = 0; whyq = sc->sc_qr->stat; /* qec status */ whyc = sc->sc_cr->stat; /* be channel status */ whyb = sc->sc_br->stat; /* be status */ if (whyq & QEC_STAT_BM) r |= beeint(sc, whyb); if (whyq & QEC_STAT_ER) r |= beqint(sc, whyc); if (sc->sc_tx_intr && (whyq & QEC_STAT_TX) && (whyc & BE_CR_STAT_TXIRQ)) r |= betint(sc); if (whyq & QEC_STAT_RX && whyc & BE_CR_STAT_RXIRQ) r |= berint(sc); return (r); } /* * QEC Interrupt. */ int beqint(sc, why) struct besoftc *sc; u_int32_t why; { int r = 0, rst = 0; if (why & BE_CR_STAT_TXIRQ) r |= 1; if (why & BE_CR_STAT_RXIRQ) r |= 1; if (why & BE_CR_STAT_ERRORS) { r |= 1; rst = 1; } if (rst || r == 0) { printf("%s:%s qstat=%b\n", sc->sc_dev.dv_xname, (r) ? "" : " unexpected", why, BE_CR_STAT_BITS); printf("%s: resetting\n", sc->sc_dev.dv_xname); bereset(sc); } return r; } /* * Error interrupt. */ int beeint(sc, why) struct besoftc *sc; u_int32_t why; { int r = 0; if (why & (BE_BR_STAT_RFIFOVF | BE_BR_STAT_TFIFO_UND | BE_BR_STAT_MAXPKTERR)) { r |= 1; } printf("%s:%s stat=%b\n", sc->sc_dev.dv_xname, (r) ? "" : " unexpected", why, BE_BR_STAT_BITS); printf("%s: resetting\n", sc->sc_dev.dv_xname); bereset(sc); return r; } void be_tx_harvest(sc) struct besoftc *sc; { struct ifnet *ifp = &sc->sc_arpcom.ac_if; int bix, cnt; struct be_txd txd; bix = sc->sc_first_td; cnt = sc->sc_no_td; for (;;) { if (cnt <= 0) break; txd.tx_flags = sc->sc_desc->be_txd[bix].tx_flags; if (txd.tx_flags & BE_TXD_OWN) break; ifp->if_opackets++; if (++bix == BE_TX_RING_MAXSIZE) bix = 0; --cnt; } if (cnt <= 0) ifp->if_timer = 0; if (sc->sc_no_td != cnt) { sc->sc_first_td = bix; sc->sc_no_td = cnt; ifp->if_flags &= ~IFF_OACTIVE; } if (sc->sc_no_td < BE_TX_LOW_WATER) { /* turn off interrupt */ sc->sc_tx_intr = 0; sc->sc_cr->timask = 0xffffffff; } } /* * Transmit interrupt. */ int betint(sc) struct besoftc *sc; { struct ifnet *ifp = &sc->sc_arpcom.ac_if; bestart(ifp); return (1); } /* * Receive interrupt. */ int berint(sc) struct besoftc *sc; { int bix, len; bix = sc->sc_last_rd; /* * Process all buffers with valid data. */ for (;;) { if (sc->sc_desc->be_rxd[bix].rx_flags & BE_RXD_OWN) break; len = sc->sc_desc->be_rxd[bix].rx_flags & BE_RXD_LENGTH; be_read(sc, bix, len); sc->sc_desc->be_rxd[(bix + BE_RX_RING_SIZE) & BE_RX_RING_MAXMASK].rx_flags = BE_RXD_OWN | (BE_PKT_BUF_SZ & BE_RXD_LENGTH); if (++bix == BE_RX_RING_MAXSIZE) bix = 0; } sc->sc_last_rd = bix; return 1; } void betick(vsc) void *vsc; { struct besoftc *sc = vsc; struct ifnet *ifp = &sc->sc_arpcom.ac_if; struct be_bregs *br = sc->sc_br; int s; s = splnet(); /* * Get collision counters */ ifp->if_collisions += br->nc_ctr + br->fc_ctr + br->ex_ctr + br->lt_ctr; br->nc_ctr = 0; br->fc_ctr = 0; br->ex_ctr = 0; br->lt_ctr = 0; bestart(ifp); splx(s); timeout_add(&sc->sc_tick, hz); } int beioctl(ifp, cmd, data) struct ifnet *ifp; u_long cmd; caddr_t data; { struct besoftc *sc = ifp->if_softc; struct ifaddr *ifa = (struct ifaddr *)data; struct ifreq *ifr = (struct ifreq *)data; int s, error = 0; s = splnet(); switch (cmd) { case SIOCSIFADDR: ifp->if_flags |= IFF_UP; switch (ifa->ifa_addr->sa_family) { #ifdef INET case AF_INET: beinit(sc); arp_ifinit(&sc->sc_arpcom, ifa); break; #endif /* INET */ default: beinit(sc); break; } break; case SIOCSIFFLAGS: if ((ifp->if_flags & IFF_UP) == 0 && (ifp->if_flags & IFF_RUNNING) != 0) { /* * If interface is marked down and it is running, then * stop it. */ bestop(sc); ifp->if_flags &= ~IFF_RUNNING; } else if ((ifp->if_flags & IFF_UP) != 0 && (ifp->if_flags & IFF_RUNNING) == 0) { /* * If interface is marked up and it is stopped, then * start it. */ beinit(sc); } else { /* * Reset the interface to pick up changes in any other * flags that affect hardware registers. */ bestop(sc); beinit(sc); } break; case SIOCADDMULTI: case SIOCDELMULTI: error = (cmd == SIOCADDMULTI) ? ether_addmulti(ifr, &sc->sc_arpcom): ether_delmulti(ifr, &sc->sc_arpcom); if (error == ENETRESET) { /* * Multicast list has changed; set the hardware filter * accordingly. */ if (ifp->if_flags & IFF_RUNNING) be_mcreset(sc); error = 0; } break; case SIOCGIFMEDIA: case SIOCSIFMEDIA: error = ifmedia_ioctl(ifp, ifr, &sc->sc_ifmedia, cmd); break; default: if ((error = ether_ioctl(ifp, &sc->sc_arpcom, cmd, data)) > 0) { splx(s); return error; } error = ENOTTY; break; } splx(s); return error; } void beinit(sc) struct besoftc *sc; { struct be_bregs *br = sc->sc_br; struct be_cregs *cr = sc->sc_cr; struct qec_softc *qec = sc->sc_qec; struct ifnet *ifp = &sc->sc_arpcom.ac_if; int s = splnet(); int i; /* * Allocate descriptor ring and buffers, if not already done */ if (sc->sc_desc == NULL) sc->sc_desc_dva = (struct be_desc *) dvma_malloc( sizeof(struct be_desc), &sc->sc_desc, M_NOWAIT); if (sc->sc_bufs == NULL) sc->sc_bufs_dva = (struct be_bufs *) dvma_malloc( sizeof(struct be_bufs), &sc->sc_bufs, M_NOWAIT); for (i = 0; i < BE_TX_RING_MAXSIZE; i++) { sc->sc_desc->be_txd[i].tx_addr = (u_int32_t)sc->sc_bufs_dva->tx_buf[i & BE_TX_RING_MASK]; sc->sc_desc->be_txd[i].tx_flags = 0; } for (i = 0; i < BE_RX_RING_MAXSIZE; i++) { sc->sc_desc->be_rxd[i].rx_addr = (u_int32_t)sc->sc_bufs_dva->rx_buf[i & BE_RX_RING_MASK]; if (i < BE_RX_RING_SIZE) sc->sc_desc->be_rxd[i].rx_flags = BE_RXD_OWN | (BE_PKT_BUF_SZ & BE_RXD_LENGTH); else sc->sc_desc->be_rxd[i].rx_flags = 0; } sc->sc_first_td = sc->sc_last_td = sc->sc_no_td = 0; sc->sc_last_rd = 0; be_tcvr_init(sc); be_ifmedia_upd(ifp); bestop(sc); br->mac_addr2 = (sc->sc_arpcom.ac_enaddr[4] << 8) | sc->sc_arpcom.ac_enaddr[5]; br->mac_addr1 = (sc->sc_arpcom.ac_enaddr[2] << 8) | sc->sc_arpcom.ac_enaddr[3]; br->mac_addr0 = (sc->sc_arpcom.ac_enaddr[0] << 8) | sc->sc_arpcom.ac_enaddr[1]; br->rx_cfg = BE_BR_RXCFG_HENABLE | BE_BR_RXCFG_FIFO; be_mcreset(sc); DELAY(20); br->tx_cfg = BE_BR_TXCFG_FIFO; br->rand_seed = 0xbd; br->xif_cfg = BE_BR_XCFG_ODENABLE | BE_BR_XCFG_RESV; cr->rxds = (u_int32_t)sc->sc_desc_dva->be_rxd; cr->txds = (u_int32_t)sc->sc_desc_dva->be_txd; cr->rxwbufptr = cr->rxrbufptr = sc->sc_channel * qec->sc_msize; cr->txwbufptr = cr->txrbufptr = cr->rxrbufptr + qec->sc_rsize; /* * Turn off counter expiration interrupts as well as * 'gotframe' and 'sentframe' */ br->imask = BE_BR_IMASK_GOTFRAME | BE_BR_IMASK_RCNTEXP | BE_BR_IMASK_ACNTEXP | BE_BR_IMASK_CCNTEXP | BE_BR_IMASK_LCNTEXP | BE_BR_IMASK_CVCNTEXP | BE_BR_IMASK_SENTFRAME | BE_BR_IMASK_NCNTEXP | BE_BR_IMASK_ECNTEXP | BE_BR_IMASK_LCCNTEXP | BE_BR_IMASK_FCNTEXP | BE_BR_IMASK_DTIMEXP; cr->rimask = 0; /* disable tx interrupts initially */ cr->timask = 0xffffffff; sc->sc_tx_intr = 0; cr->qmask = 0; cr->bmask = 0; br->jsize = 4; cr->ccnt = 0; br->tx_cfg |= BE_BR_TXCFG_ENABLE; br->rx_cfg |= BE_BR_RXCFG_ENABLE; ifp->if_flags |= IFF_RUNNING; ifp->if_flags &= ~IFF_OACTIVE; splx(s); timeout_add(&sc->sc_tick, hz); bestart(ifp); } /* * Set the tcvr to an idle state */ void be_tcvr_idle(sc) struct besoftc *sc; { struct be_tregs *tr = sc->sc_tr; volatile u_int32_t x; int i = 20; while (i--) { tr->mgmt_pal = MGMT_PAL_INT_MDIO | MGMT_PAL_EXT_MDIO | MGMT_PAL_OENAB; x = tr->mgmt_pal; tr->mgmt_pal = MGMT_PAL_INT_MDIO | MGMT_PAL_EXT_MDIO | MGMT_PAL_OENAB | MGMT_PAL_DCLOCK; x = tr->mgmt_pal; } } /* * Initialize the transceiver and figure out whether we're using the * external or internal one. */ void be_tcvr_init(sc) struct besoftc *sc; { volatile u_int32_t x; struct be_tregs *tr = sc->sc_tr; be_tcvr_idle(sc); if (sc->sc_rev != 1) { printf("%s: rev %d PAL not supported.\n", sc->sc_dev.dv_xname, sc->sc_rev); return; } tr->mgmt_pal = MGMT_PAL_INT_MDIO | MGMT_PAL_EXT_MDIO | MGMT_PAL_DCLOCK; x = tr->mgmt_pal; tr->mgmt_pal = MGMT_PAL_INT_MDIO | MGMT_PAL_EXT_MDIO; x = tr->mgmt_pal; DELAY(200); if (tr->mgmt_pal & MGMT_PAL_EXT_MDIO) { sc->sc_tcvr_type = BE_TCVR_EXTERNAL; tr->tcvr_pal = ~(TCVR_PAL_EXTLBACK | TCVR_PAL_MSENSE | TCVR_PAL_LTENABLE); x = tr->tcvr_pal; } else if (tr->mgmt_pal & MGMT_PAL_INT_MDIO) { sc->sc_tcvr_type = BE_TCVR_INTERNAL; tr->tcvr_pal = ~(TCVR_PAL_EXTLBACK | TCVR_PAL_MSENSE | TCVR_PAL_LTENABLE | TCVR_PAL_SERIAL); x = tr->tcvr_pal; } else { printf("%s: no internal or external transceiver found.\n", sc->sc_dev.dv_xname); } } int be_tcvr_read(sc, reg) struct besoftc *sc; u_int8_t reg; { int phy, i; u_int32_t ret = 0; if (sc->sc_tcvr_type == BE_TCVR_INTERNAL) phy = BE_PHY_INTERNAL; else if (sc->sc_tcvr_type == BE_TCVR_EXTERNAL) phy = BE_PHY_EXTERNAL; else { printf("%s: invalid tcvr type\n", sc->sc_dev.dv_xname); return BE_TCVR_READ_INVALID; } be_tcvr_idle(sc); be_tcvr_write_bit(sc, 0); be_tcvr_write_bit(sc, 1); be_tcvr_write_bit(sc, 1); be_tcvr_write_bit(sc, 0); for (i = 4; i >= 0; i--) be_tcvr_write_bit(sc, (phy >> i) & 1); for (i = 4; i >= 0; i--) be_tcvr_write_bit(sc, (reg >> i) & 1); if (sc->sc_tcvr_type == BE_TCVR_EXTERNAL) { (void) be_tcvr_read_bit2(sc); (void) be_tcvr_read_bit2(sc); for (i = 15; i >= 0; i--) { int b; b = be_tcvr_read_bit2(sc); ret |= (b & 1) << i; } (void) be_tcvr_read_bit2(sc); (void) be_tcvr_read_bit2(sc); (void) be_tcvr_read_bit2(sc); } else { (void) be_tcvr_read_bit1(sc); (void) be_tcvr_read_bit1(sc); for (i = 15; i >= 0; i--) { int b; b = be_tcvr_read_bit1(sc); ret |= (b & 1) << i; } (void) be_tcvr_read_bit1(sc); (void) be_tcvr_read_bit1(sc); (void) be_tcvr_read_bit1(sc); } return ret; } int be_tcvr_read_bit1(sc) struct besoftc *sc; { volatile u_int32_t x; struct be_tregs *tr = sc->sc_tr; int ret = 0; if (sc->sc_tcvr_type == BE_TCVR_INTERNAL) { tr->mgmt_pal = MGMT_PAL_EXT_MDIO; x = tr->mgmt_pal; tr->mgmt_pal = MGMT_PAL_EXT_MDIO | MGMT_PAL_DCLOCK; x = tr->mgmt_pal; DELAY(20); ret = (tr->mgmt_pal & MGMT_PAL_INT_MDIO) >> 3; } else if (sc->sc_tcvr_type == BE_TCVR_EXTERNAL) { tr->mgmt_pal = MGMT_PAL_INT_MDIO; x = tr->mgmt_pal; tr->mgmt_pal = MGMT_PAL_INT_MDIO | MGMT_PAL_DCLOCK; x = tr->mgmt_pal; DELAY(20); ret = (tr->mgmt_pal & MGMT_PAL_EXT_MDIO) >> 2; } else { printf("%s: invalid tcvr type\n", sc->sc_dev.dv_xname); } return (ret & 1); } int be_tcvr_read_bit2(sc) struct besoftc *sc; { volatile u_int32_t x; struct be_tregs *tr = sc->sc_tr; int ret = 0; if (sc->sc_tcvr_type == BE_TCVR_INTERNAL) { tr->mgmt_pal = MGMT_PAL_EXT_MDIO; x = tr->mgmt_pal; DELAY(20); ret = (tr->mgmt_pal & MGMT_PAL_INT_MDIO) >> 3; tr->mgmt_pal = MGMT_PAL_EXT_MDIO | MGMT_PAL_DCLOCK; x = tr->mgmt_pal; } else if (sc->sc_tcvr_type == BE_TCVR_EXTERNAL) { tr->mgmt_pal = MGMT_PAL_INT_MDIO; x = tr->mgmt_pal; DELAY(20); ret = (tr->mgmt_pal & MGMT_PAL_EXT_MDIO) >> 2; tr->mgmt_pal = MGMT_PAL_INT_MDIO | MGMT_PAL_DCLOCK; x = tr->mgmt_pal; } else { printf("%s: invalid tcvr type\n", sc->sc_dev.dv_xname); } return ret; } void be_tcvr_write(sc, reg, val) struct besoftc *sc; u_int8_t reg; u_int16_t val; { int phy, i; if (sc->sc_tcvr_type == BE_TCVR_INTERNAL) phy = BE_PHY_INTERNAL; else if (sc->sc_tcvr_type == BE_TCVR_EXTERNAL) phy = BE_PHY_EXTERNAL; else { printf("%s: invalid tcvr type\n", sc->sc_dev.dv_xname); return; } be_tcvr_idle(sc); be_tcvr_write_bit(sc, 0); be_tcvr_write_bit(sc, 1); be_tcvr_write_bit(sc, 0); be_tcvr_write_bit(sc, 1); for (i = 4; i >= 0; i--) be_tcvr_write_bit(sc, (phy >> i) & 1); for (i = 4; i >= 0; i--) be_tcvr_write_bit(sc, (reg >> i) & 1); be_tcvr_write_bit(sc, 1); be_tcvr_write_bit(sc, 0); for (i = 15; i >= 0; i--) be_tcvr_write_bit(sc, (val >> i) & 1); } void be_tcvr_write_bit(sc, bit) struct besoftc *sc; int bit; { volatile u_int32_t x; if (sc->sc_tcvr_type == BE_TCVR_INTERNAL) { bit = ((bit & 1) << 3) | MGMT_PAL_OENAB | MGMT_PAL_EXT_MDIO; sc->sc_tr->mgmt_pal = bit; x = sc->sc_tr->mgmt_pal; sc->sc_tr->mgmt_pal = bit | MGMT_PAL_DCLOCK; x = sc->sc_tr->mgmt_pal; } else { bit = ((bit & 1) << 2) | MGMT_PAL_OENAB | MGMT_PAL_INT_MDIO; sc->sc_tr->mgmt_pal = bit; x = sc->sc_tr->mgmt_pal; sc->sc_tr->mgmt_pal = bit | MGMT_PAL_DCLOCK; x = sc->sc_tr->mgmt_pal; } } /* * Pass a packet to the higher levels. */ void be_read(sc, idx, len) struct besoftc *sc; int idx, len; { struct ifnet *ifp = &sc->sc_arpcom.ac_if; struct mbuf *m; if (len <= sizeof(struct ether_header) || len > ETHERMTU + sizeof(struct ether_header)) { printf("%s: invalid packet size %d; dropping\n", ifp->if_xname, len); ifp->if_ierrors++; return; } /* * Pull packet off interface. */ m = qec_get(ifp, sc->sc_bufs->rx_buf[idx & BE_RX_RING_MASK], len); if (m == NULL) { ifp->if_ierrors++; return; } ifp->if_ipackets++; /* Pass the packet up. */ ether_input_mbuf(ifp, m); } /* * Get current media settings. */ void be_ifmedia_sts(ifp, ifmr) struct ifnet *ifp; struct ifmediareq *ifmr; { struct besoftc *sc = ifp->if_softc; int bmcr, bmsr; bmcr = be_tcvr_read(sc, PHY_BMCR); switch (bmcr & (PHY_BMCR_SPEED | PHY_BMCR_DUPLEX)) { case (PHY_BMCR_SPEED | PHY_BMCR_DUPLEX): ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_FDX; break; case PHY_BMCR_SPEED: ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_HDX; break; case PHY_BMCR_DUPLEX: ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_FDX; break; case 0: ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_HDX; break; } bmsr = be_tcvr_read(sc, PHY_BMSR); if (bmsr & PHY_BMSR_LINKSTATUS) ifmr->ifm_status |= IFM_AVALID | IFM_ACTIVE; else { ifmr->ifm_status |= IFM_AVALID; ifmr->ifm_status &= ~IFM_ACTIVE; } } /* * Set media options. */ int be_ifmedia_upd(ifp) struct ifnet *ifp; { struct besoftc *sc = ifp->if_softc; struct ifmedia *ifm = &sc->sc_ifmedia; int bmcr, tries; if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) return (EINVAL); be_tcvr_write(sc, PHY_BMCR, PHY_BMCR_LOOPBACK | PHY_BMCR_PDOWN | PHY_BMCR_ISOLATE); be_tcvr_write(sc, PHY_BMCR, PHY_BMCR_RESET); for (tries = 16; tries >= 0; tries--) { bmcr = be_tcvr_read(sc, PHY_BMCR); if ((bmcr & PHY_BMCR_RESET) == 0) break; DELAY(20); } if (tries == 0) { printf("%s: bmcr reset failed\n", sc->sc_dev.dv_xname); return (EIO); } bmcr = be_tcvr_read(sc, PHY_BMCR); if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_T4) { bmcr |= PHY_BMCR_SPEED; bmcr &= ~PHY_BMCR_DUPLEX; } if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_TX) { bmcr |= PHY_BMCR_SPEED; } if (IFM_SUBTYPE(ifm->ifm_media) == IFM_10_T) { bmcr &= ~PHY_BMCR_SPEED; } if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { bmcr |= PHY_BMCR_DUPLEX; sc->sc_br->tx_cfg |= BE_BR_TXCFG_FULLDPLX; } else { bmcr &= ~PHY_BMCR_DUPLEX; sc->sc_br->tx_cfg &= ~BE_BR_TXCFG_FULLDPLX; } be_tcvr_write(sc, PHY_BMCR, bmcr & (~PHY_BMCR_ISOLATE)); for (tries = 32; tries >= 0; tries--) { bmcr = be_tcvr_read(sc, PHY_BMCR); if ((bmcr & PHY_BMCR_ISOLATE) == 0) break; DELAY(20); } if (tries == 0) { printf("%s: bmcr unisolate failed\n", sc->sc_dev.dv_xname); return (EIO); } return (0); } void be_mcreset(sc) struct besoftc *sc; { struct arpcom *ac = &sc->sc_arpcom; struct ifnet *ifp = &sc->sc_arpcom.ac_if; struct be_bregs *br = sc->sc_br; u_int32_t crc; u_int16_t hash[4]; u_int8_t octet; int i, j; struct ether_multi *enm; struct ether_multistep step; if (ifp->if_flags & IFF_PROMISC) { br->rx_cfg |= BE_BR_RXCFG_PMISC; return; } else br->rx_cfg &= ~BE_BR_RXCFG_PMISC; if (ifp->if_flags & IFF_ALLMULTI) { br->htable3 = 0xffff; br->htable2 = 0xffff; br->htable1 = 0xffff; br->htable0 = 0xffff; return; } hash[3] = hash[2] = hash[1] = hash[0] = 0; ETHER_FIRST_MULTI(step, ac, enm); while (enm != NULL) { if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { /* * We must listen to a range of multicast * addresses. For now, just accept all * multicasts, rather than trying to set only * those filter bits needed to match the range. * (At this time, the only use of address * ranges is for IP multicast routing, for * which the range is big enough to require * all bits set.) */ br->htable3 = 0xffff; br->htable2 = 0xffff; br->htable1 = 0xffff; br->htable0 = 0xffff; ifp->if_flags |= IFF_ALLMULTI; return; } crc = 0xffffffff; for (i = 0; i < ETHER_ADDR_LEN; i++) { octet = enm->enm_addrlo[i]; for (j = 0; j < 8; j++) { if ((crc & 1) ^ (octet & 1)) { crc >>= 1; crc ^= MC_POLY_LE; } else crc >>= 1; octet >>= 1; } } crc >>= 26; hash[crc >> 4] |= 1 << (crc & 0xf); ETHER_NEXT_MULTI(step, enm); } br->htable3 = hash[3]; br->htable2 = hash[2]; br->htable1 = hash[1]; br->htable0 = hash[0]; ifp->if_flags &= ~IFF_ALLMULTI; }