diff options
| author | cgd <cgd@NetBSD.org> | 1995-06-28 02:24:50 +0000 |
|---|---|---|
| committer | cgd <cgd@NetBSD.org> | 1995-06-28 02:24:50 +0000 |
| commit | 50937bb63a63701a2d1008a238e005d7fb1f0704 (patch) | |
| tree | b038d0d777084df45bde5ac66763639f6e304c4c /sys/dev/ic | |
| parent | c319ff6546effbe2aa23bca77b195156e2385f12 (diff) | |
add charles's mostly-machine-independent lance driver, which is used
by the Alpha port.
Diffstat (limited to 'sys/dev/ic')
| -rw-r--r-- | sys/dev/ic/am7990.c | 1214 | ||||
| -rw-r--r-- | sys/dev/ic/am7990var.h | 63 |
2 files changed, 1277 insertions, 0 deletions
diff --git a/sys/dev/ic/am7990.c b/sys/dev/ic/am7990.c new file mode 100644 index 00000000000..761c04640f3 --- /dev/null +++ b/sys/dev/ic/am7990.c @@ -0,0 +1,1214 @@ +/* $NetBSD: am7990.c,v 1.1 1995/06/28 02:24:50 cgd Exp $ */ + +/*- + * Copyright (c) 1995 Charles M. Hannum. All rights reserved. + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Ralph Campbell and Rick Macklem. + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. + * + * @(#)if_le.c 8.2 (Berkeley) 11/16/93 + */ + +#include <sys/ioctl.h> +#include <sys/errno.h> + +#ifdef INET +#include <netinet/in_systm.h> +#include <netinet/in_var.h> +#include <netinet/ip.h> +#endif + +#ifdef NS +#include <netns/ns.h> +#include <netns/ns_if.h> +#endif + +#if defined(CCITT) && defined(LLC) +#include <sys/socketvar.h> +#include <netccitt/x25.h> +extern llc_ctlinput(), cons_rtrequest(); +#endif + +#if NBPFILTER > 0 +#include <net/bpf.h> +#include <net/bpfdesc.h> +#endif + +#ifdef LEDEBUG +void recv_print __P((struct le_softc *, int)); +void xmit_print __P((struct le_softc *, int)); +#endif + +void +leconfig(sc) + struct le_softc *sc; +{ + struct ifnet *ifp = &sc->sc_arpcom.ac_if; + int mem; + + /* Make sure the chip is stopped. */ + lestop(sc); + + /* Initialize ifnet structure. */ + ifp->if_unit = sc->sc_dev.dv_unit; + ifp->if_start = lestart; + ifp->if_ioctl = leioctl; + ifp->if_watchdog = lewatchdog; + ifp->if_flags = + IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS | IFF_MULTICAST; + + /* Attach the interface. */ + if_attach(ifp); + ether_ifattach(ifp); + +#if NBPFILTER > 0 + bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header)); +#endif + + switch (sc->sc_memsize) { + case 8192: + sc->sc_nrbuf = 4; + sc->sc_ntbuf = 1; + break; + case 16384: + sc->sc_nrbuf = 8; + sc->sc_ntbuf = 2; + break; + case 32768: + sc->sc_nrbuf = 16; + sc->sc_ntbuf = 4; + break; + case 65536: + sc->sc_nrbuf = 32; + sc->sc_ntbuf = 8; + break; + default: + panic("leconfig: weird memory size"); + } + + printf(": address %s, %d receive buffers, %d transmit buffers\n", + ether_sprintf(sc->sc_arpcom.ac_enaddr), + sc->sc_nrbuf, sc->sc_ntbuf); + + mem = 0; + sc->sc_initaddr = mem; + mem += sizeof(struct leinit); + sc->sc_rmdaddr = mem; + mem += sizeof(struct lermd) * sc->sc_nrbuf; + sc->sc_tmdaddr = mem; + mem += sizeof(struct letmd) * sc->sc_ntbuf; + sc->sc_rbufaddr = mem; + mem += LEBLEN * sc->sc_nrbuf; + sc->sc_tbufaddr = mem; + mem += LEBLEN * sc->sc_ntbuf; +#ifdef notyet + if (mem > ...) + panic(...); +#endif +} + +void +lereset(sc) + struct le_softc *sc; +{ + + leinit(sc); +} + +void +lewatchdog(unit) + short unit; +{ + struct le_softc *sc = LE_SOFTC(unit); + + log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname); + ++sc->sc_arpcom.ac_if.if_oerrors; + + lereset(sc); +} + +/* + * Set up the initialization block and the descriptor rings. + */ +void +lememinit(sc) + register struct le_softc *sc; +{ + struct ifnet *ifp = &sc->sc_arpcom.ac_if; + u_long a; + int bix; + struct leinit init; + struct lermd rmd; + struct letmd tmd; + +#if NBPFILTER > 0 + if (ifp->if_flags & IFF_PROMISC) + init.init_mode = LE_MODE_NORMAL | LE_MODE_PROM; + else +#endif + init.init_mode = LE_MODE_NORMAL; + init.init_padr[0] = + (sc->sc_arpcom.ac_enaddr[1] << 8) | sc->sc_arpcom.ac_enaddr[0]; + init.init_padr[1] = + (sc->sc_arpcom.ac_enaddr[3] << 8) | sc->sc_arpcom.ac_enaddr[2]; + init.init_padr[2] = + (sc->sc_arpcom.ac_enaddr[5] << 8) | sc->sc_arpcom.ac_enaddr[4]; + lesetladrf(&sc->sc_arpcom, init.init_ladrf); + + sc->sc_last_rd = 0; + sc->sc_first_td = sc->sc_last_td = sc->sc_no_td = 0; + + a = sc->sc_addr + LE_RMDADDR(sc, 0); + init.init_rdra = a; + init.init_rlen = (a >> 16) | ((ffs(sc->sc_nrbuf) - 1) << 13); + + a = sc->sc_addr + LE_TMDADDR(sc, 0); + init.init_tdra = a; + init.init_tlen = (a >> 16) | ((ffs(sc->sc_ntbuf) - 1) << 13); + + (*sc->sc_copytodesc)(sc, &init, LE_INITADDR(sc), sizeof(init)); + + /* + * Set up receive ring descriptors. + */ + for (bix = 0; bix < sc->sc_nrbuf; bix++) { + a = sc->sc_addr + LE_RBUFADDR(sc, bix); + rmd.rmd0 = a; + rmd.rmd1_hadr = a >> 16; + rmd.rmd1_bits = LE_R1_OWN; + rmd.rmd2 = -LEBLEN | LE_XMD2_ONES; + rmd.rmd3 = 0; + (*sc->sc_copytodesc)(sc, &rmd, LE_RMDADDR(sc, bix), + sizeof(rmd)); + } + + /* + * Set up transmit ring descriptors. + */ + for (bix = 0; bix < sc->sc_ntbuf; bix++) { + a = sc->sc_addr + LE_TBUFADDR(sc, bix); + tmd.tmd0 = a; + tmd.tmd1_hadr = a >> 16; + tmd.tmd1_bits = 0; + tmd.tmd2 = 0 | LE_XMD2_ONES; + tmd.tmd3 = 0; + (*sc->sc_copytodesc)(sc, &tmd, LE_TMDADDR(sc, bix), + sizeof(tmd)); + } +} + +void +lestop(sc) + struct le_softc *sc; +{ + + lewrcsr(sc, LE_CSR0, LE_C0_STOP); +} + +/* + * Initialization of interface; set up initialization block + * and transmit/receive descriptor rings. + */ +void +leinit(sc) + register struct le_softc *sc; +{ + struct ifnet *ifp = &sc->sc_arpcom.ac_if; + int s; + register int timo; + u_long a; + + s = splimp(); + + lewrcsr(sc, LE_CSR0, LE_C0_STOP); + LE_DELAY(100); + + /* Set the correct byte swapping mode, etc. */ + lewrcsr(sc, LE_CSR3, sc->sc_conf3); + + /* Set up LANCE init block. */ + lememinit(sc); + + /* Give LANCE the physical address of its init block. */ + a = sc->sc_addr + LE_INITADDR(sc); + lewrcsr(sc, LE_CSR1, a); + lewrcsr(sc, LE_CSR2, a >> 16); + + /* Try to initialize the LANCE. */ + LE_DELAY(100); + lewrcsr(sc, LE_CSR0, LE_C0_INIT); + + /* Wait for initialization to finish. */ + for (timo = 100000; timo; timo--) + if (lerdcsr(sc, LE_CSR0) & LE_C0_IDON) + break; + + if (lerdcsr(sc, LE_CSR0) & LE_C0_IDON) { + /* Start the LANCE. */ + lewrcsr(sc, LE_CSR0, LE_C0_INEA | LE_C0_STRT | LE_C0_IDON); + ifp->if_flags |= IFF_RUNNING; + ifp->if_flags &= ~IFF_OACTIVE; + ifp->if_timer = 0; + lestart(ifp); + } else + printf("%s: card failed to initialize\n", sc->sc_dev.dv_xname); + + splx(s); +} + +/* + * Routine to copy from mbuf chain to transmit buffer in + * network buffer memory. + */ +integrate int +leput(sc, boff, m) + struct le_softc *sc; + int boff; + register struct mbuf *m; +{ + register struct mbuf *n; + register int len, tlen = 0; + + for (; m; m = n) { + len = m->m_len; + if (len == 0) { + MFREE(m, n); + continue; + } + (*sc->sc_copytobuf)(sc, mtod(m, caddr_t), boff, len); + boff += len; + tlen += len; + MFREE(m, n); + } + if (tlen < LEMINSIZE) { + (*sc->sc_zerobuf)(sc, boff, LEMINSIZE - tlen); + tlen = LEMINSIZE; + } + return (tlen); +} + +/* + * Pull data off an interface. + * Len is length of data, with local net header stripped. + * We copy the data into mbufs. When full cluster sized units are present + * we copy into clusters. + */ +integrate struct mbuf * +leget(sc, boff, totlen) + struct le_softc *sc; + int boff, totlen; +{ + register struct mbuf *m; + struct mbuf *top, **mp; + int len, pad; + + MGETHDR(m, M_DONTWAIT, MT_DATA); + if (m == 0) + return (0); + m->m_pkthdr.rcvif = &sc->sc_arpcom.ac_if; + m->m_pkthdr.len = totlen; + pad = ALIGN(sizeof(struct ether_header)) - sizeof(struct ether_header); + m->m_data += pad; + len = MHLEN - pad; + top = 0; + mp = ⊤ + + while (totlen > 0) { + if (top) { + MGET(m, M_DONTWAIT, MT_DATA); + if (m == 0) { + m_freem(top); + return 0; + } + len = MLEN; + } + if (top && totlen >= MINCLSIZE) { + MCLGET(m, M_DONTWAIT); + if (m->m_flags & M_EXT) + len = MCLBYTES; + } + m->m_len = len = min(totlen, len); + (*sc->sc_copyfrombuf)(sc, mtod(m, caddr_t), boff, len); + boff += len; + totlen -= len; + *mp = m; + mp = &m->m_next; + } + + return (top); +} + +/* + * Pass a packet to the higher levels. + */ +integrate void +leread(sc, boff, len) + register struct le_softc *sc; + int boff, len; +{ + struct ifnet *ifp; + struct mbuf *m; + struct ether_header *eh; + + len -= 4; + if (len <= sizeof(struct ether_header)) + return; + + /* Pull packet off interface. */ + m = leget(sc, boff, len); + if (m == 0) + return; + + /* We assume that the header fit entirely in one mbuf. */ + eh = mtod(m, struct ether_header *); + + ifp = &sc->sc_arpcom.ac_if; + +#if NBPFILTER > 0 + /* + * Check if there's a BPF listener on this interface. + * If so, hand off the raw packet to BPF. + */ + if (ifp->if_bpf) { + bpf_mtap(ifp->if_bpf, m); + + /* + * Note that the interface cannot be in promiscuous mode if + * there are no BPF listeners. And if we are in promiscuous + * mode, we have to check if this packet is really ours. + */ + if ((ifp->if_flags & IFF_PROMISC) != 0 && + (eh->ether_dhost[0] & 1) == 0 && /* !mcast and !bcast */ + bcmp(eh->ether_dhost, sc->sc_arpcom.ac_enaddr, + sizeof(eh->ether_dhost)) != 0) { + m_freem(m); + return; + } + } +#endif + + /* Pass the packet up, with the ether header sort-of removed. */ + m_adj(m, sizeof(struct ether_header)); + ether_input(ifp, eh, m); +} + +integrate void +lerint(sc) + struct le_softc *sc; +{ + register int bix; + int rp; + struct lermd rmd; + + bix = sc->sc_last_rd; + + /* Process all buffers with valid data. */ + for (;;) { + rp = LE_RMDADDR(sc, bix); + (*sc->sc_copyfromdesc)(sc, &rmd, rp, sizeof(rmd)); + + if (rmd.rmd1_bits & LE_R1_OWN) + break; + + if (rmd.rmd1_bits & LE_R1_ERR) { + if (rmd.rmd1_bits & LE_R1_ENP) { + if ((rmd.rmd1_bits & LE_R1_OFLO) == 0) { + if (rmd.rmd1_bits & LE_R1_FRAM) + printf("%s: framing error\n", + sc->sc_dev.dv_xname); + if (rmd.rmd1_bits & LE_R1_CRC) + printf("%s: crc mismatch\n", + sc->sc_dev.dv_xname); + } + } else { + if (rmd.rmd1_bits & LE_R1_OFLO) + printf("%s: overflow\n", + sc->sc_dev.dv_xname); + } + if (rmd.rmd1_bits & LE_R1_BUFF) + printf("%s: receive buffer error\n", + sc->sc_dev.dv_xname); + } else if (rmd.rmd1_bits & (LE_R1_STP | LE_R1_ENP) != + (LE_R1_STP | LE_R1_ENP)) { + printf("%s: dropping chained buffer\n", + sc->sc_dev.dv_xname); + } else { +#ifdef LEDEBUG + if (sc->sc_debug) + recv_print(sc, sc->sc_last_rd); +#endif + leread(sc, LE_RBUFADDR(sc, bix), (int)rmd.rmd3); + sc->sc_arpcom.ac_if.if_ipackets++; + } + + rmd.rmd1_bits = LE_R1_OWN; + rmd.rmd2 = -LEBLEN | LE_XMD2_ONES; + rmd.rmd3 = 0; + (*sc->sc_copytodesc)(sc, &rmd, rp, sizeof(rmd)); + +#ifdef LEDEBUG + if (sc->sc_debug) + printf("sc->sc_last_rd = %x, rmd = %x\n", + sc->sc_last_rd, rmd); +#endif + + if (++bix == sc->sc_nrbuf) + bix = 0; + } + + sc->sc_last_rd = bix; +} + +integrate void +letint(sc) + register struct le_softc *sc; +{ + register struct ifnet *ifp = &sc->sc_arpcom.ac_if; + register int bix; + struct letmd tmd; + + bix = sc->sc_first_td; + + for (;;) { + if (sc->sc_no_td <= 0) + break; + +#ifdef LEDEBUG + if (sc->sc_debug) + printf("trans tmd = %x\n", tmd); +#endif + + (*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, bix), + sizeof(tmd)); + + if (tmd.tmd1_bits & LE_T1_OWN) + break; + + ifp->if_flags &= ~IFF_OACTIVE; + + if (tmd.tmd1_bits & LE_T1_ERR) { + if (tmd.tmd3 & LE_T3_BUFF) + printf("%s: transmit buffer error\n", sc->sc_dev.dv_xname); + else if (tmd.tmd3 & LE_T3_UFLO) + printf("%s: underflow\n", sc->sc_dev.dv_xname); + if (tmd.tmd3 & (LE_T3_BUFF | LE_T3_UFLO)) { + lereset(sc); + return; + } + if (tmd.tmd3 & LE_T3_LCAR) + printf("%s: lost carrier\n", sc->sc_dev.dv_xname); + if (tmd.tmd3 & LE_T3_LCOL) + ifp->if_collisions++; + if (tmd.tmd3 & LE_T3_RTRY) { + printf("%s: excessive collisions, tdr %d\n", + sc->sc_dev.dv_xname, tmd.tmd3 & LE_T3_TDR_MASK); + ifp->if_collisions += 16; + } + ifp->if_oerrors++; + } else { + if (tmd.tmd1_bits & LE_T1_ONE) + ifp->if_collisions++; + else if (tmd.tmd1_bits & LE_T1_MORE) + /* Real number is unknown. */ + ifp->if_collisions += 2; + ifp->if_opackets++; + } + + if (++bix == sc->sc_ntbuf) + bix = 0; + + --sc->sc_no_td; + } + + sc->sc_first_td = bix; + + lestart(ifp); + + if (sc->sc_no_td == 0) + ifp->if_timer = 0; +} + +/* + * Controller interrupt. + */ +#ifdef LEINTR_UNIT +int +leintr(unit) + int unit; +{ + register struct le_softc *sc = LE_SOFTC(unit); +#else +int +leintr(arg) + register void *arg; +{ + register struct le_softc *sc = arg; +#endif + register u_int16_t isr; + + isr = lerdcsr(sc, LE_CSR0); +#ifdef LEDEBUG + if (sc->sc_debug) + printf("%s: leintr entering with isr=%04x\n", + sc->sc_dev.dv_xname, isr); +#endif + if ((isr & LE_C0_INTR) == 0) + return (0); + + lewrcsr(sc, LE_CSR0, + isr & (LE_C0_INEA | LE_C0_BABL | LE_C0_MISS | LE_C0_MERR | + LE_C0_RINT | LE_C0_TINT | LE_C0_IDON)); + if (isr & LE_C0_ERR) { + if (isr & LE_C0_BABL) { + printf("%s: babble\n", sc->sc_dev.dv_xname); + sc->sc_arpcom.ac_if.if_oerrors++; + } +#if 0 + if (isr & LE_C0_CERR) { + printf("%s: collision error\n", sc->sc_dev.dv_xname); + sc->sc_arpcom.ac_if.if_collisions++; + } +#endif + if (isr & LE_C0_MISS) + sc->sc_arpcom.ac_if.if_ierrors++; + if (isr & LE_C0_MERR) { + printf("%s: memory error\n", sc->sc_dev.dv_xname); + lereset(sc); + return (1); + } + } + + if ((isr & LE_C0_RXON) == 0) { + printf("%s: receiver disabled\n", sc->sc_dev.dv_xname); + sc->sc_arpcom.ac_if.if_ierrors++; + lereset(sc); + return (1); + } + if ((isr & LE_C0_TXON) == 0) { + printf("%s: transmitter disabled\n", sc->sc_dev.dv_xname); + sc->sc_arpcom.ac_if.if_oerrors++; + lereset(sc); + return (1); + } + + if (isr & LE_C0_RINT) + lerint(sc); + if (isr & LE_C0_TINT) + letint(sc); + + return (1); +} + +/* + * Setup output on interface. + * Get another datagram to send off of the interface queue, and map it to the + * interface before starting the output. + * Called only at splimp or interrupt level. + */ +void +lestart(ifp) + register struct ifnet *ifp; +{ + register struct le_softc *sc = LE_SOFTC(ifp->if_unit); + register int bix; + register struct mbuf *m; + struct letmd tmd; + int rp; + int len; + + if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) + return; + + bix = sc->sc_last_td; + + for (;;) { + rp = LE_TMDADDR(sc, bix); + (*sc->sc_copyfromdesc)(sc, &tmd, rp, sizeof(tmd)); + + if (tmd.tmd1_bits & LE_T1_OWN) { + ifp->if_flags |= IFF_OACTIVE; + printf("missing buffer, no_td = %d, last_td = %d\n", + sc->sc_no_td, sc->sc_last_td); + } + + IF_DEQUEUE(&ifp->if_snd, m); + if (m == 0) + break; + +#if NBPFILTER > 0 + /* + * If BPF is listening on this interface, let it see the packet + * before we commit it to the wire. + */ + if (ifp->if_bpf) + bpf_mtap(ifp->if_bpf, m); +#endif + + /* + * Copy the mbuf chain into the transmit buffer. + */ + len = leput(sc, LE_TBUFADDR(sc, bix), m); + +#ifdef LEDEBUG + if (len > ETHERMTU) + printf("packet length %d\n", len); +#endif + + ifp->if_timer = 5; + + /* + * Init transmit registers, and set transmit start flag. + */ + tmd.tmd1_bits = LE_T1_OWN | LE_T1_STP | LE_T1_ENP; + tmd.tmd2 = -len | LE_XMD2_ONES; + tmd.tmd3 = 0; + + (*sc->sc_copytodesc)(sc, &tmd, rp, sizeof(tmd)); + +#ifdef LEDEBUG + if (sc->sc_debug) + xmit_print(sc, sc->sc_last_td); +#endif + + lewrcsr(sc, LE_CSR0, LE_C0_INEA | LE_C0_TDMD); + + if (++bix == sc->sc_ntbuf) + bix = 0; + + if (++sc->sc_no_td == sc->sc_ntbuf) { + ifp->if_flags |= IFF_OACTIVE; + break; + } + + } + + sc->sc_last_td = bix; +} + +/* + * Process an ioctl request. + */ +int +leioctl(ifp, cmd, data) + register struct ifnet *ifp; + u_long cmd; + caddr_t data; +{ + struct le_softc *sc = LE_SOFTC(ifp->if_unit); + struct ifaddr *ifa = (struct ifaddr *)data; + struct ifreq *ifr = (struct ifreq *)data; + int s, error = 0; + + s = splimp(); + + switch (cmd) { + + case SIOCSIFADDR: + ifp->if_flags |= IFF_UP; + + switch (ifa->ifa_addr->sa_family) { +#ifdef INET + case AF_INET: + leinit(sc); + arp_ifinit(&sc->sc_arpcom, ifa); + break; +#endif +#ifdef NS + case AF_NS: + { + register struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; + + if (ns_nullhost(*ina)) + ina->x_host = + *(union ns_host *)(sc->sc_arpcom.ac_enaddr); + else + bcopy(ina->x_host.c_host, + sc->sc_arpcom.ac_enaddr, + sizeof(sc->sc_arpcom.ac_enaddr)); + /* Set new address. */ + leinit(sc); + break; + } +#endif + default: + leinit(sc); + break; + } + break; + +#if defined(CCITT) && defined(LLC) + case SIOCSIFCONF_X25: + ifp->if_flags |= IFF_UP; + ifa->ifa_rtrequest = (void (*)())cons_rtrequest; /* XXX */ + error = x25_llcglue(PRC_IFUP, ifa->ifa_addr); + if (error == 0) + leinit(sc); + break; +#endif /* CCITT && LLC */ + + 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. + */ + lestop(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. + */ + leinit(sc); + } else { + /* + * Reset the interface to pick up changes in any other + * flags that affect hardware registers. + */ + /*lestop(sc);*/ + leinit(sc); + } +#ifdef LEDEBUG + if (ifp->if_flags & IFF_DEBUG) + sc->sc_debug = 1; + else + sc->sc_debug = 0; +#endif + 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. + */ + leinit(sc); + error = 0; + } + break; + + default: + error = EINVAL; + } + + splx(s); + return (error); +} + +#ifdef LEDEBUG +void +recv_print(sc, no) + struct le_softc *sc; + int no; +{ + struct lermd rmd; + u_int16_t len; + struct ether_header eh; + + (*sc->sc_copyfromdesc)(sc, &rmd, LE_RMDADDR(sc, no), sizeof(rmd)); + len = rmd.rmd3; + printf("%s: receive buffer %d, len = %d\n", sc->sc_dev.dv_xname, no, + len); + printf("%s: status %04x\n", sc->sc_dev.dv_xname, lerdcsr(sc, LE_CSR0)); + printf("%s: ladr %04x, hadr %02x, flags %02x, bcnt %04x, mcnt %04x\n", + sc->sc_dev.dv_xname, + rmd.rmd0, rmd.rmd1_hadr, rmd.rmd1_bits, rmd.rmd2, rmd.rmd3); + if (len >= sizeof(eh)) { + (*sc->sc_copyfrombuf)(sc, &eh, LE_RBUFADDR(sc, no), sizeof(eh)); + printf("%s: dst %s", ether_sprintf(eh.ether_dhost)); + printf(" src %s type %04x\n", ether_sprintf(eh.ether_shost), + ntohs(eh.ether_type)); + } +} + +void +xmit_print(sc, no) + struct le_softc *sc; + int no; +{ + struct letmd tmd; + u_int16_t len; + struct ether_header eh; + + (*sc->sc_copyfromdesc)(sc, &tmd, LE_TMDADDR(sc, no), sizeof(tmd)); + len = -tmd.tmd2; + printf("%s: transmit buffer %d, len = %d\n", sc->sc_dev.dv_xname, no, + len); + printf("%s: status %04x\n", sc->sc_dev.dv_xname, lerdcsr(sc, LE_CSR0)); + printf("%s: ladr %04x, hadr %02x, flags %02x, bcnt %04x, mcnt %04x\n", + sc->sc_dev.dv_xname, + tmd.tmd0, tmd.tmd1_hadr, tmd.tmd1_bits, tmd.tmd2, tmd.tmd3); + if (len >= sizeof(eh)) { + (*sc->sc_copyfrombuf)(sc, &eh, LE_TBUFADDR(sc, no), sizeof(eh)); + printf("%s: dst %s", ether_sprintf(eh.ether_dhost)); + printf(" src %s type %04x\n", ether_sprintf(eh.ether_shost), + ntohs(eh.ether_type)); + } +} +#endif /* LEDEBUG */ + +/* + * Set up the logical address filter. + */ +void +lesetladrf(ac, af) + struct arpcom *ac; + u_int16_t *af; +{ + struct ifnet *ifp = &ac->ac_if; + struct ether_multi *enm; + register u_char *cp, c; + register u_int32_t crc; + register int i, len; + struct ether_multistep step; + + /* + * Set up multicast address filter by passing all multicast addresses + * through a crc generator, and then using the high order 6 bits as an + * index into the 64 bit logical address filter. The high order bit + * selects the word, while the rest of the bits select the bit within + * the word. + */ + + if (ifp->if_flags & IFF_PROMISC) + goto allmulti; + + af[0] = af[1] = af[2] = af[3] = 0x0000; + ETHER_FIRST_MULTI(step, ac, enm); + while (enm != NULL) { + if (bcmp(enm->enm_addrlo, enm->enm_addrhi, + sizeof(enm->enm_addrlo)) != 0) { + /* + * 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.) + */ + goto allmulti; + } + + cp = enm->enm_addrlo; + crc = 0xffffffff; + for (len = sizeof(enm->enm_addrlo); --len >= 0;) { + c = *cp++; + for (i = 8; --i >= 0;) { + if ((crc & 0x01) ^ (c & 0x01)) { + crc >>= 1; + crc ^= 0xedb88320; + } else + crc >>= 1; + c >>= 1; + } + } + /* Just want the 6 most significant bits. */ + crc >>= 26; + + /* Set the corresponding bit in the filter. */ + af[crc >> 4] |= 1 << (crc & 0xf); + + ETHER_NEXT_MULTI(step, enm); + } + ifp->if_flags &= ~IFF_ALLMULTI; + return; + +allmulti: + ifp->if_flags |= IFF_ALLMULTI; + af[0] = af[1] = af[2] = af[3] = 0xffff; +} + + +#if 0 /* USE OF THE FOLLOWING IS MACHINE-SPECIFIC */ +/* + * Routines for accessing the transmit and receive buffers. Unfortunately, + * CPU addressing of these buffers is done in one of 3 ways: + * - contiguous (for the 3max and turbochannel option card) + * - gap2, which means shorts (2 bytes) interspersed with short (2 byte) + * spaces (for the pmax) + * - gap16, which means 16bytes interspersed with 16byte spaces + * for buffers which must begin on a 32byte boundary (for 3min and maxine) + * The buffer offset is the logical byte offset, assuming contiguous storage. + */ +void +copytodesc_contig(sc, from, boff, len) + struct le_softc *sc; + caddr_t from; + int boff, len; +{ + volatile caddr_t buf = sc->sc_mem; + + /* + * Just call bcopy() to do the work. + */ + bcopy(from, buf + boff, len); +} + +void +copyfromdesc_contig(sc, to, boff, len) + struct le_softc *sc; + caddr_t to; + int boff, len; +{ + volatile caddr_t buf = sc->sc_mem; + + /* + * Just call bcopy() to do the work. + */ + bcopy(buf + boff, to, len); +} + +void +copytobuf_contig(sc, from, boff, len) + struct le_softc *sc; + caddr_t from; + int boff, len; +{ + volatile caddr_t buf = sc->sc_mem; + + /* + * Just call bcopy() to do the work. + */ + bcopy(from, buf + boff, len); +} + +void +copyfrombuf_contig(sc, to, boff, len) + struct le_softc *sc; + caddr_t to; + int boff, len; +{ + volatile caddr_t buf = sc->sc_mem; + + /* + * Just call bcopy() to do the work. + */ + bcopy(buf + boff, to, len); +} + +void +zerobuf_contig(sc, boff, len) + struct le_softc *sc; + int boff, len; +{ + volatile caddr_t buf = sc->sc_mem; + + /* + * Just let bzero() do the work + */ + bzero(buf + boff, len); +} + +/* + * For the pmax the buffer consists of shorts (2 bytes) interspersed with + * short (2 byte) spaces and must be accessed with halfword load/stores. + * (don't worry about doing an extra byte) + */ +void +copytobuf_gap2(sc, from, boff, len) + struct le_softc *sc; + register caddr_t from; + int boff; + register int len; +{ + volatile caddr_t buf = sc->sc_mem; + register volatile u_short *bptr; + register int xfer; + + if (boff & 0x1) { + /* handle unaligned first byte */ + bptr = ((volatile u_short *)buf) + (boff - 1); + *bptr = (*from++ << 8) | (*bptr & 0xff); + bptr += 2; + len--; + } else + bptr = ((volatile u_short *)buf) + boff; + if ((unsigned)from & 0x1) { + while (len > 1) { + *bptr = (from[1] << 8) | (from[0] & 0xff); + bptr += 2; + from += 2; + len -= 2; + } + } else { + /* optimize for aligned transfers */ + xfer = (int)((unsigned)len & ~0x1); + CopyToBuffer((u_short *)from, bptr, xfer); + bptr += xfer; + from += xfer; + len -= xfer; + } + if (len == 1) + *bptr = (u_short)*from; +} + +void +copyfrombuf_gap2(sc, to, boff, len) + struct le_softc *sc; + register caddr_t to; + int boff, len; +{ + volatile caddr_t buf = sc->sc_mem; + register volatile u_short *bptr; + register u_short tmp; + register int xfer; + + if (boff & 0x1) { + /* handle unaligned first byte */ + bptr = ((volatile u_short *)buf) + (boff - 1); + *to++ = (*bptr >> 8) & 0xff; + bptr += 2; + len--; + } else + bptr = ((volatile u_short *)buf) + boff; + if ((unsigned)to & 0x1) { + while (len > 1) { + tmp = *bptr; + *to++ = tmp & 0xff; + *to++ = (tmp >> 8) & 0xff; + bptr += 2; + len -= 2; + } + } else { + /* optimize for aligned transfers */ + xfer = (int)((unsigned)len & ~0x1); + CopyFromBuffer(bptr, to, xfer); + bptr += xfer; + to += xfer; + len -= xfer; + } + if (len == 1) + *to = *bptr & 0xff; +} + +void +zerobuf_gap2(sc, boff, len) + struct le_softc *sc; + int boff, len; +{ + volatile caddr_t buf = sc->sc_mem; + register volatile u_short *bptr; + + if ((unsigned)boff & 0x1) { + bptr = ((volatile u_short *)buf) + (boff - 1); + *bptr &= 0xff; + bptr += 2; + len--; + } else + bptr = ((volatile u_short *)buf) + boff; + while (len > 0) { + *bptr = 0; + bptr += 2; + len -= 2; + } +} + +/* + * For the 3min and maxine, the buffers are in main memory filled in with + * 16byte blocks interspersed with 16byte spaces. + */ +void +copytobuf_gap16(sc, from, boff, len) + struct le_softc *sc; + register caddr_t from; + int boff; + register int len; +{ + volatile caddr_t buf = sc->sc_mem; + register caddr_t bptr; + register int xfer; + + bptr = buf + ((boff << 1) & ~0x1f); + boff &= 0xf; + xfer = min(len, 16 - boff); + while (len > 0) { + bcopy(from, bptr + boff, xfer); + from += xfer; + bptr += 32; + boff = 0; + len -= xfer; + xfer = min(len, 16); + } +} + +void +copyfrombuf_gap16(sc, to, boff, len) + struct le_softc *sc; + register caddr_t to; + int boff, len; +{ + volatile caddr_t buf = sc->sc_mem; + register caddr_t bptr; + register int xfer; + + bptr = buf + ((boff << 1) & ~0x1f); + boff &= 0xf; + xfer = min(len, 16 - boff); + while (len > 0) { + bcopy(bptr + boff, to, xfer); + to += xfer; + bptr += 32; + boff = 0; + len -= xfer; + xfer = min(len, 16); + } +} + +void +zerobuf_gap16(sc, boff, len) + struct le_softc *sc; + int boff, len; +{ + volatile caddr_t buf = sc->sc_mem; + register caddr_t bptr; + register int xfer; + + bptr = buf + ((boff << 1) & ~0x1f); + boff &= 0xf; + xfer = min(len, 16 - boff); + while (len > 0) { + bzero(bptr + boff, xfer); + bptr += 32; + boff = 0; + len -= xfer; + xfer = min(len, 16); + } +} +#endif diff --git a/sys/dev/ic/am7990var.h b/sys/dev/ic/am7990var.h new file mode 100644 index 00000000000..b1f86584a42 --- /dev/null +++ b/sys/dev/ic/am7990var.h @@ -0,0 +1,63 @@ +/* $NetBSD: am7990var.h,v 1.1 1995/06/28 02:24:56 cgd Exp $ */ + +/* + * Copyright (c) 1995 Charles M. Hannum. 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Charles M. Hannum. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + */ + +#ifdef DDB +#define integrate +#else +#define integrate static inline +#endif + +void leconfig __P((struct le_softc *)); +void leinit __P((struct le_softc *)); +int leioctl __P((struct ifnet *, u_long, caddr_t)); +void lememinit __P((struct le_softc *)); +void lereset __P((struct le_softc *)); +void lesetladrf __P((struct arpcom *, u_int16_t *)); +void lestart __P((struct ifnet *)); +void lestop __P((struct le_softc *)); +void lewatchdog __P((/* short */)); + +integrate u_int16_t lerdcsr __P((/* struct le_softc *, u_int16_t */)); +integrate void lewrcsr __P((/* struct le_softc *, u_int16_t, u_int16_t */)); + +integrate void lerint __P((struct le_softc *)); +integrate void letint __P((struct le_softc *)); + +integrate int leput __P((struct le_softc *, int, struct mbuf *)); +integrate struct mbuf *leget __P((struct le_softc *, int, int)); +integrate void leread __P((struct le_softc *, int, int)); + +void copytodesc_contig(), copyfromdesc_contig(); +void copytobuf_contig(), copyfrombuf_contig(), zerobuf_contig(); +#ifdef 0 +void copytobuf_gap2(), copyfrombuf_gap2(), zerobuf_gap2(); +void copytobuf_gap16(), copyfrombuf_gap16(), zerobuf_gap16(); +#endif |
