/*- * Copyright (c) 1994, 1995 Matt Thomas (matt@lkg.dec.com) * 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. The name of the author may not be used to endorse or promote products * derived from this software withough 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. * * $Id: if_de.c,v 1.27 1995/05/26 02:02:44 davidg Exp $ * */ /* * DEC DC21040 PCI Ethernet Controller * * Written by Matt Thomas * BPF support code stolen directly from if_ec.c * * This driver supports the DEC DE435 or any other PCI * board which support DC21040 or DC21140 (mostly). */ #if defined(__FreeBSD__) #include "de.h" #endif #if NDE > 0 || !defined(__FreeBSD__) #include #include #include #include #include #include #include #include #include #include /* only for declaration of wakeup() used by vm.h */ #if defined(__FreeBSD__) #include #include #elif defined(__bsdi__) || defined(__NetBSD__) #include #endif #include #include #include #include #include "bpfilter.h" #if NBPFILTER > 0 #include #include #endif #ifdef INET #include #include #include #include #include #endif #ifdef NS #include #include #endif #include #include #include #if defined(__FreeBSD__) #include #if NPCI > 0 #include #include #endif #endif #if defined(__bsdi__) #include #include #include #include #include #include #endif #if defined(__NetBSD__) #include #include #endif /* * This module supports * the DEC DC21040 PCI Ethernet Controller. * the DEC DC21140 PCI Fast Ethernet Controller. */ typedef struct { unsigned long addr; unsigned long length; } tulip_addrvec_t; typedef struct { tulip_desc_t *ri_first; tulip_desc_t *ri_last; tulip_desc_t *ri_nextin; tulip_desc_t *ri_nextout; int ri_max; int ri_free; } tulip_ringinfo_t; typedef struct { volatile tulip_uint32_t *csr_busmode; /* CSR0 */ volatile tulip_uint32_t *csr_txpoll; /* CSR1 */ volatile tulip_uint32_t *csr_rxpoll; /* CSR2 */ volatile tulip_uint32_t *csr_rxlist; /* CSR3 */ volatile tulip_uint32_t *csr_txlist; /* CSR4 */ volatile tulip_uint32_t *csr_status; /* CSR5 */ volatile tulip_uint32_t *csr_command; /* CSR6 */ volatile tulip_uint32_t *csr_intr; /* CSR7 */ volatile tulip_uint32_t *csr_missed_frame; /* CSR8 */ /* DC21040 specific registers */ volatile tulip_sint32_t *csr_enetrom; /* CSR9 */ volatile tulip_uint32_t *csr_reserved; /* CSR10 */ volatile tulip_uint32_t *csr_full_duplex; /* CSR11 */ volatile tulip_uint32_t *csr_sia_status; /* CSR12 */ volatile tulip_uint32_t *csr_sia_connectivity; /* CSR13 */ volatile tulip_uint32_t *csr_sia_tx_rx; /* CSR14 */ volatile tulip_uint32_t *csr_sia_general; /* CSR15 */ /* DC21140/DC21041 specific registers */ volatile tulip_uint32_t *csr_srom_mii; /* CSR9 */ volatile tulip_uint32_t *csr_gp_timer; /* CSR11 */ volatile tulip_uint32_t *csr_gp; /* CSR12 */ volatile tulip_uint32_t *csr_watchdog; /* CSR15 */ } tulip_regfile_t; /* * macros to read and write CSRs. Note that the "0 +" in * READ_CSR is to prevent the macro from being an lvalue * and WRITE_CSR shouldn't be assigned from. */ #define TULIP_READ_CSR(sc, csr) (0 + *(sc)->tulip_csrs.csr) #ifndef __alpha__ #define TULIP_WRITE_CSR(sc, csr, val) \ ((void)(*(sc)->tulip_csrs.csr = (val))) #else #define TULIP_WRITE_CSR(sc, csr, val) \ ((void)(*(sc)->tulip_csrs.csr = (val), MB())) #endif /* * The DC21040 has a stupid restriction in that the receive * buffers must be longword aligned. But since Ethernet * headers are not a multiple of longwords in size this forces * the data to non-longword aligned. Since IP requires the * data to be longword aligned, we need to copy it after it has * been DMA'ed in our memory. * * Since we have to copy it anyways, we might as well as allocate * dedicated receive space for the input. This allows to use a * small receive buffer size and more ring entries to be able to * better keep with a flood of tiny Ethernet packets. * * The receive space MUST ALWAYS be a multiple of the page size. * And the number of receive descriptors multiplied by the size * of the receive buffers must equal the recevive space. This * is so that we can manipulate the page tables so that even if a * packet wraps around the end of the receive space, we can * treat it as virtually contiguous. * * The above used to be true (the stupid restriction is still true) * but we gone to directly DMA'ing into MBUFs because with 100Mb * cards the copying is just too much of a hit. */ #if defined(__alpha__) #define TULIP_COPY_RXDATA 1 #endif #define TULIP_RXDESCS 16 #define TULIP_TXDESCS 128 #define TULIP_RXQ_TARGET 8 typedef enum { TULIP_DC21040_GENERIC, TULIP_DC21140_DEC_EB, TULIP_DC21140_DEC_DE500, TULIP_DC21140_COGENT_EM100 } tulip_board_t; typedef struct _tulip_softc_t tulip_softc_t; typedef struct { tulip_board_t bd_type; const char *bd_description; int (*bd_media_probe)(tulip_softc_t *sc); void (*bd_media_select)(tulip_softc_t *sc); } tulip_boardsw_t; typedef enum { TULIP_DC21040, TULIP_DC21140, TULIP_DC21041 } tulip_chipid_t; struct _tulip_softc_t { #if defined(__bsdi__) struct device tulip_dev; /* base device */ struct isadev tulip_id; /* ISA device */ struct intrhand tulip_ih; /* intrrupt vectoring */ struct atshutdown tulip_ats; /* shutdown routine */ #endif #if defined(__NetBSD__) struct device tulip_dev; /* base device */ void *tulip_ih; /* intrrupt vectoring */ /* XXX no shutdown routine? */ #endif struct arpcom tulip_ac; tulip_regfile_t tulip_csrs; unsigned tulip_flags; #define TULIP_WANTSETUP 0x01 #define TULIP_WANTHASH 0x02 #define TULIP_DOINGSETUP 0x04 #define TULIP_ALTPHYS 0x08 /* use AUI */ unsigned char tulip_rombuf[128]; tulip_uint32_t tulip_setupbuf[192/sizeof(tulip_uint32_t)]; tulip_uint32_t tulip_setupdata[192/sizeof(tulip_uint32_t)]; tulip_uint32_t tulip_intrmask; tulip_uint32_t tulip_cmdmode; tulip_uint32_t tulip_revinfo; tulip_chipid_t tulip_chipid; const tulip_boardsw_t *tulip_boardsw; struct ifqueue tulip_txq; struct ifqueue tulip_rxq; tulip_ringinfo_t tulip_rxinfo; tulip_ringinfo_t tulip_txinfo; }; #ifndef IFF_ALTPHYS #define IFF_ALTPHYS IFF_LINK0 /* In case it isn't defined */ #endif static const char *tulip_chipdescs[] = { "DC21040 [10Mb/s]", "DC21140 [10-100Mb/s]", "DC21041 [10Mb/s]" }; #if defined(__FreeBSD__) typedef void ifnet_ret_t; typedef int ioctl_cmd_t; tulip_softc_t *tulips[NDE]; #define TULIP_UNIT_TO_SOFTC(unit) (tulips[unit]) #endif #if defined(__bsdi__) typedef int ifnet_ret_t; typedef int ioctl_cmd_t; extern struct cfdriver decd; #define TULIP_UNIT_TO_SOFTC(unit) ((tulip_softc_t *) decd.cd_devs[unit]) #endif #if defined(__NetBSD__) typedef void ifnet_ret_t; typedef u_long ioctl_cmd_t; extern struct cfdriver decd; #define TULIP_UNIT_TO_SOFTC(unit) ((tulip_softc_t *) decd.cd_devs[unit]) #endif #define tulip_if tulip_ac.ac_if #define tulip_unit tulip_ac.ac_if.if_unit #define tulip_name tulip_ac.ac_if.if_name #define tulip_bpf tulip_ac.ac_if.if_bpf #define tulip_hwaddr tulip_ac.ac_enaddr #define TULIP_CRC32_POLY 0xEDB88320UL /* CRC-32 Poly -- Little Endian */ #define TULIP_CHECK_RXCRC 0 #define TULIP_MAX_TXSEG 30 #define TULIP_ADDREQUAL(a1, a2) \ (((u_short *)a1)[0] == ((u_short *)a2)[0] \ && ((u_short *)a1)[1] == ((u_short *)a2)[1] \ && ((u_short *)a1)[2] == ((u_short *)a2)[2]) #define TULIP_ADDRBRDCST(a1) \ (((u_short *)a1)[0] == 0xFFFFU \ && ((u_short *)a1)[1] == 0xFFFFU \ && ((u_short *)a1)[2] == 0xFFFFU) static ifnet_ret_t tulip_start(struct ifnet *ifp); static void tulip_rx_intr(tulip_softc_t *sc); static void tulip_addr_filter(tulip_softc_t *sc); static int tulip_dc21040_media_probe( tulip_softc_t * const sc) { int cnt; TULIP_WRITE_CSR(sc, csr_sia_connectivity, 0); TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET); for (cnt = 0; cnt < 2400; cnt++) { if ((TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) == 0) break; DELAY(1000); } return (TULIP_READ_CSR(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) != 0; } static void tulip_dc21040_media_select( tulip_softc_t * const sc) { sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT; TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_RESET); if (sc->tulip_if.if_flags & IFF_ALTPHYS) { if ((sc->tulip_flags & TULIP_ALTPHYS) == 0) printf("%s%d: enabling Thinwire/AUI port\n", sc->tulip_if.if_name, sc->tulip_if.if_unit); TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_AUI); sc->tulip_flags |= TULIP_ALTPHYS; } else { if (sc->tulip_flags & TULIP_ALTPHYS) printf("%s%d: enabling 10baseT/UTP port\n", sc->tulip_if.if_name, sc->tulip_if.if_unit); TULIP_WRITE_CSR(sc, csr_sia_connectivity, TULIP_SIACONN_10BASET); sc->tulip_flags &= ~TULIP_ALTPHYS; } } static const tulip_boardsw_t tulip_dc21040_boardsw = { TULIP_DC21040_GENERIC, "", tulip_dc21040_media_probe, tulip_dc21040_media_select }; static int tulip_dc21140_evalboard_media_probe( tulip_softc_t * const sc) { TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_PINS); TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_INIT); TULIP_WRITE_CSR(sc, csr_command, TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT | TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE); TULIP_WRITE_CSR(sc, csr_command, TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL); DELAY(1000000); return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_EB_OK100) != 0; } static void tulip_dc21140_evalboard_media_select( tulip_softc_t * const sc) { sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE; TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_PINS); TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EB_INIT); if (sc->tulip_if.if_flags & IFF_ALTPHYS) { if ((sc->tulip_flags & TULIP_ALTPHYS) == 0) printf("%s%d: enabling 100baseTX UTP port\n", sc->tulip_if.if_name, sc->tulip_if.if_unit); sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER; sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL; sc->tulip_flags |= TULIP_ALTPHYS; } else { if (sc->tulip_flags & TULIP_ALTPHYS) printf("%s%d: enabling 10baseT UTP port\n", sc->tulip_if.if_name, sc->tulip_if.if_unit); sc->tulip_cmdmode &= ~(TULIP_CMD_PORTSELECT |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER); sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL; sc->tulip_flags &= ~TULIP_ALTPHYS; } } static const tulip_boardsw_t tulip_dc21140_eb_boardsw = { TULIP_DC21140_DEC_EB, "", tulip_dc21140_evalboard_media_probe, tulip_dc21140_evalboard_media_select }; static int tulip_dc21140_cogent_em100_media_probe( tulip_softc_t * const sc) { TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_PINS); TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_INIT); TULIP_WRITE_CSR(sc, csr_command, TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT | TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE); TULIP_WRITE_CSR(sc, csr_command, TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL); return 1; } static void tulip_dc21140_cogent_em100_media_select( tulip_softc_t * const sc) { sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE; TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_PINS); TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_EM100_INIT); if ((sc->tulip_flags & TULIP_ALTPHYS) == 0) printf("%s%d: enabling 100baseTX UTP port\n", sc->tulip_if.if_name, sc->tulip_if.if_unit); sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER; sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL; sc->tulip_flags |= TULIP_ALTPHYS; } static const tulip_boardsw_t tulip_dc21140_cogent_em100_boardsw = { TULIP_DC21140_COGENT_EM100, "Cogent EM100", tulip_dc21140_cogent_em100_media_probe, tulip_dc21140_cogent_em100_media_select }; static int tulip_dc21140_de500_media_probe( tulip_softc_t * const sc) { TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_PINS); DELAY(1000); TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_HALFDUPLEX); if ((TULIP_READ_CSR(sc, csr_gp) & (TULIP_GP_DE500_NOTOK_100|TULIP_GP_DE500_NOTOK_10)) != (TULIP_GP_DE500_NOTOK_100|TULIP_GP_DE500_NOTOK_10)) return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_DE500_NOTOK_100) != 0; TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_HALFDUPLEX|TULIP_GP_DE500_FORCE_100); TULIP_WRITE_CSR(sc, csr_command, TULIP_READ_CSR(sc, csr_command) | TULIP_CMD_PORTSELECT | TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE); TULIP_WRITE_CSR(sc, csr_command, TULIP_READ_CSR(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL); DELAY(1000000); return (TULIP_READ_CSR(sc, csr_gp) & TULIP_GP_DE500_NOTOK_100) != 0; } static void tulip_dc21140_de500_media_select( tulip_softc_t * const sc) { sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE; TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_PINS); if (sc->tulip_if.if_flags & IFF_ALTPHYS) { if ((sc->tulip_flags & TULIP_ALTPHYS) == 0) printf("%s%d: enabling 100baseTX UTP port\n", sc->tulip_if.if_name, sc->tulip_if.if_unit); sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER; sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL; sc->tulip_flags |= TULIP_ALTPHYS; TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_HALFDUPLEX|TULIP_GP_DE500_FORCE_100); } else { if (sc->tulip_flags & TULIP_ALTPHYS) printf("%s%d: enabling 10baseT UTP port\n", sc->tulip_if.if_name, sc->tulip_if.if_unit); sc->tulip_cmdmode &= ~(TULIP_CMD_PORTSELECT |TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER); sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL; sc->tulip_flags &= ~TULIP_ALTPHYS; TULIP_WRITE_CSR(sc, csr_gp, TULIP_GP_DE500_HALFDUPLEX); } } static const tulip_boardsw_t tulip_dc21140_de500_boardsw = { TULIP_DC21140_DEC_DE500, "Digital DE500 ", tulip_dc21140_de500_media_probe, tulip_dc21140_de500_media_select }; static void tulip_reset( tulip_softc_t * const sc) { tulip_ringinfo_t *ri; tulip_desc_t *di; TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET); DELAY(10); /* Wait 10 microsends (actually 50 PCI cycles but at 33MHz that comes to two microseconds but wait a bit longer anyways) */ (*sc->tulip_boardsw->bd_media_select)(sc); TULIP_WRITE_CSR(sc, csr_txlist, vtophys(&sc->tulip_txinfo.ri_first[0])); TULIP_WRITE_CSR(sc, csr_rxlist, vtophys(&sc->tulip_rxinfo.ri_first[0])); TULIP_WRITE_CSR(sc, csr_intr, 0); TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_BURSTLEN_8LW|TULIP_BUSMODE_CACHE_ALIGN8 |(BYTE_ORDER != LITTLE_ENDIAN ? TULIP_BUSMODE_BIGENDIAN : 0)); sc->tulip_txq.ifq_maxlen = TULIP_TXDESCS; /* * Free all the mbufs that were on the transmit ring. */ for (;;) { struct mbuf *m; IF_DEQUEUE(&sc->tulip_txq, m); if (m == NULL) break; m_freem(m); } ri = &sc->tulip_txinfo; ri->ri_nextin = ri->ri_nextout = ri->ri_first; ri->ri_free = ri->ri_max; for (di = ri->ri_first; di < ri->ri_last; di++) di->d_status = 0; /* * We need to collect all the mbufs were on the * receive ring before we reinit it either to put * them back on or to know if we have to allocate * more. */ ri = &sc->tulip_rxinfo; ri->ri_nextin = ri->ri_nextout = ri->ri_first; ri->ri_free = ri->ri_max; for (di = ri->ri_first; di < ri->ri_last; di++) { di->d_status = 0; di->d_length1 = 0; di->d_addr1 = 0; di->d_length2 = 0; di->d_addr2 = 0; } for (;;) { struct mbuf *m; IF_DEQUEUE(&sc->tulip_rxq, m); if (m == NULL) break; m_freem(m); } sc->tulip_intrmask = TULIP_STS_NORMALINTR|TULIP_STS_RXINTR|TULIP_STS_TXINTR |TULIP_STS_ABNRMLINTR|TULIP_STS_SYSERROR|TULIP_STS_TXSTOPPED |TULIP_STS_TXBABBLE|TULIP_STS_LINKFAIL|TULIP_STS_RXSTOPPED; sc->tulip_flags &= ~(TULIP_DOINGSETUP|TULIP_WANTSETUP); tulip_addr_filter(sc); } static void tulip_init( tulip_softc_t * const sc) { if (sc->tulip_if.if_flags & IFF_UP) { sc->tulip_if.if_flags |= IFF_RUNNING; if (sc->tulip_if.if_flags & IFF_PROMISC) { sc->tulip_cmdmode |= TULIP_CMD_PROMISCUOUS; } else { sc->tulip_cmdmode &= ~TULIP_CMD_PROMISCUOUS; if (sc->tulip_if.if_flags & IFF_ALLMULTI) { sc->tulip_cmdmode |= TULIP_CMD_ALLMULTI; } else { sc->tulip_cmdmode &= ~TULIP_CMD_ALLMULTI; } } sc->tulip_cmdmode |= TULIP_CMD_TXRUN; if ((sc->tulip_flags & TULIP_WANTSETUP) == 0) { tulip_rx_intr(sc); sc->tulip_cmdmode |= TULIP_CMD_RXRUN; sc->tulip_intrmask |= TULIP_STS_RXSTOPPED; } else { sc->tulip_intrmask &= ~TULIP_STS_RXSTOPPED; tulip_start(&sc->tulip_if); } sc->tulip_cmdmode |= TULIP_CMD_THRSHLD160; TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask); TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode); } else { tulip_reset(sc); sc->tulip_if.if_flags &= ~IFF_RUNNING; } } #if TULIP_CHECK_RXCRC static unsigned tulip_crc32( u_char *addr, int len) { unsigned int crc = 0xFFFFFFFF; static unsigned int crctbl[256]; int idx; static int done; /* * initialize the multicast address CRC table */ for (idx = 0; !done && idx < 256; idx++) { unsigned int tmp = idx; tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */ tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */ tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */ tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */ tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */ tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */ tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */ tmp = (tmp >> 1) ^ (tmp & 1 ? TULIP_CRC32_POLY : 0); /* XOR */ crctbl[idx] = tmp; } done = 1; while (len-- > 0) crc = (crc >> 8) ^ crctbl[*addr++] ^ crctbl[crc & 0xFF]; return crc; } #endif static void tulip_rx_intr( tulip_softc_t * const sc) { tulip_ringinfo_t * const ri = &sc->tulip_rxinfo; struct ifnet * const ifp = &sc->tulip_if; for (;;) { struct ether_header eh; tulip_desc_t *eop = ri->ri_nextin; int total_len = 0; struct mbuf *m = NULL; int accept = 0; if (sc->tulip_rxq.ifq_len < TULIP_RXQ_TARGET) goto queue_mbuf; if (((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_OWNER) break; total_len = ((eop->d_status >> 16) & 0x7FF) - 4; IF_DEQUEUE(&sc->tulip_rxq, m); if ((eop->d_status & TULIP_DSTS_ERRSUM) == 0) { #if TULIP_CHECK_RXCRC unsigned crc = tulip_crc32(mtod(m, unsigned char *), total_len); if (~crc != *((unsigned *) &bufaddr[total_len])) { printf("%s%d: bad rx crc: %08x [rx] != %08x\n", sc->tulip_name, sc->tulip_unit, *((unsigned *) &bufaddr[total_len]), ~crc); goto next; } #endif eh = *mtod(m, struct ether_header *); #if NBPFILTER > 0 if (sc->tulip_bpf != NULL) bpf_tap(sc->tulip_bpf, mtod(m, caddr_t), total_len); #endif if ((sc->tulip_if.if_flags & IFF_PROMISC) && (eh.ether_dhost[0] & 1) == 0 && !TULIP_ADDREQUAL(eh.ether_dhost, sc->tulip_ac.ac_enaddr)) goto next; accept = 1; total_len -= sizeof(struct ether_header); } else { ifp->if_ierrors++; } next: ifp->if_ipackets++; if (++ri->ri_nextin == ri->ri_last) ri->ri_nextin = ri->ri_first; queue_mbuf: /* * Either we are priming the TULIP with mbufs (m == NULL) * or we are about to accept an mbuf for the upper layers * so we need to allocate an mbuf to replace it. If we * can't replace, then count it as an input error and reuse * the mbuf. */ if (accept || m == NULL) { struct mbuf *m0; MGETHDR(m0, M_DONTWAIT, MT_DATA); if (m0 != NULL) { #if defined(TULIP_COPY_RXDATA) if (!accept || total_len >= MHLEN) { #endif MCLGET(m0, M_DONTWAIT); if ((m0->m_flags & M_EXT) == 0) { m_freem(m0); m0 = NULL; } #if defined(TULIP_COPY_RXDATA) } #endif } if (accept) { if (m0 != NULL) { #if defined(__bsdi__) eh.ether_type = ntohs(eh.ether_type); #endif #if !defined(TULIP_COPY_RXDATA) m->m_data += sizeof(struct ether_header); m->m_len = m->m_pkthdr.len = total_len; m->m_pkthdr.rcvif = ifp; ether_input(ifp, &eh, m); m = m0; #else bcopy(mtod(m, caddr_t) + sizeof(struct ether_header), mtod(m0, caddr_t), total_len); m0->m_len = m0->m_pkthdr.len = total_len; m0->m_pkthdr.rcvif = ifp; ether_input(ifp, &eh, m0); #endif } else { ifp->if_ierrors++; } } else { m = m0; } } if (m == NULL) break; /* * Now give the buffer to the TULIP and save in our * receive queue. */ ri->ri_nextout->d_length1 = MCLBYTES - 4; ri->ri_nextout->d_addr1 = vtophys(mtod(m, caddr_t)); ri->ri_nextout->d_status = TULIP_DSTS_OWNER; if (++ri->ri_nextout == ri->ri_last) ri->ri_nextout = ri->ri_first; IF_ENQUEUE(&sc->tulip_rxq, m); } } static int tulip_tx_intr( tulip_softc_t * const sc) { tulip_ringinfo_t * const ri = &sc->tulip_txinfo; struct mbuf *m; int xmits = 0; while (ri->ri_free < ri->ri_max) { if (((volatile tulip_desc_t *) ri->ri_nextin)->d_status & TULIP_DSTS_OWNER) break; if (ri->ri_nextin->d_flag & TULIP_DFLAG_TxLASTSEG) { if (ri->ri_nextin->d_flag & TULIP_DFLAG_TxSETUPPKT) { /* * We've just finished processing a setup packet. * Mark that we can finished it. If there's not * another pending, startup the TULIP receiver. * Make sure we ack the RXSTOPPED so we won't get * an abormal interrupt indication. */ sc->tulip_flags &= ~TULIP_DOINGSETUP; if ((sc->tulip_flags & TULIP_WANTSETUP) == 0) { tulip_rx_intr(sc); sc->tulip_cmdmode |= TULIP_CMD_RXRUN; sc->tulip_intrmask |= TULIP_STS_RXSTOPPED; TULIP_WRITE_CSR(sc, csr_status, TULIP_STS_RXSTOPPED); TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode); TULIP_WRITE_CSR(sc, csr_intr, sc->tulip_intrmask); } } else { IF_DEQUEUE(&sc->tulip_txq, m); m_freem(m); sc->tulip_if.if_collisions += (ri->ri_nextin->d_status & TULIP_DSTS_TxCOLLMASK) >> TULIP_DSTS_V_TxCOLLCNT; if (ri->ri_nextin->d_status & TULIP_DSTS_ERRSUM) sc->tulip_if.if_oerrors++; xmits++; } } if (++ri->ri_nextin == ri->ri_last) ri->ri_nextin = ri->ri_first; ri->ri_free++; sc->tulip_if.if_flags &= ~IFF_OACTIVE; } sc->tulip_if.if_opackets += xmits; return xmits; } static ifnet_ret_t tulip_start( struct ifnet * const ifp) { tulip_softc_t * const sc = TULIP_UNIT_TO_SOFTC(ifp->if_unit); struct ifqueue * const ifq = &ifp->if_snd; tulip_ringinfo_t * const ri = &sc->tulip_txinfo; struct mbuf *m, *m0; if ((ifp->if_flags & IFF_RUNNING) == 0) return; for (;;) { tulip_desc_t *eop, *nextout; int segcnt, free, recopy; tulip_uint32_t d_status; if (sc->tulip_flags & TULIP_WANTSETUP) { if ((sc->tulip_flags & TULIP_DOINGSETUP) || ri->ri_free == 1) { ifp->if_flags |= IFF_OACTIVE; return; } bcopy(sc->tulip_setupdata, sc->tulip_setupbuf, sizeof(sc->tulip_setupbuf)); sc->tulip_flags &= ~TULIP_WANTSETUP; sc->tulip_flags |= TULIP_DOINGSETUP; ri->ri_free--; ri->ri_nextout->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN; ri->ri_nextout->d_flag |= TULIP_DFLAG_TxFIRSTSEG|TULIP_DFLAG_TxLASTSEG |TULIP_DFLAG_TxSETUPPKT|TULIP_DFLAG_TxWANTINTR; if (sc->tulip_flags & TULIP_WANTHASH) ri->ri_nextout->d_flag |= TULIP_DFLAG_TxHASHFILT; ri->ri_nextout->d_length1 = sizeof(sc->tulip_setupbuf); ri->ri_nextout->d_addr1 = vtophys(sc->tulip_setupbuf); ri->ri_nextout->d_length2 = 0; ri->ri_nextout->d_addr2 = 0; ri->ri_nextout->d_status = TULIP_DSTS_OWNER; TULIP_WRITE_CSR(sc, csr_txpoll, 1); /* * Advance the ring for the next transmit packet. */ if (++ri->ri_nextout == ri->ri_last) ri->ri_nextout = ri->ri_first; /* * Make sure the next descriptor is owned by us since it * may have been set up above if we ran out of room in the * ring. */ ri->ri_nextout->d_status = 0; } IF_DEQUEUE(ifq, m); if (m == NULL) break; /* * Now we try to fill in our transmit descriptors. This is * a bit reminiscent of going on the Ark two by two * since each descriptor for the TULIP can describe * two buffers. So we advance through packet filling * each of the two entries at a time to to fill each * descriptor. Clear the first and last segment bits * in each descriptor (actually just clear everything * but the end-of-ring or chain bits) to make sure * we don't get messed up by previously sent packets. * * We may fail to put the entire packet on the ring if * there is either not enough ring entries free or if the * packet has more than MAX_TXSEG segments. In the former * case we will just wait for the ring to empty. In the * latter case we have to recopy. */ d_status = 0; recopy = 0; eop = nextout = ri->ri_nextout; m0 = m; segcnt = 0; free = ri->ri_free; do { int len = m0->m_len; caddr_t addr = mtod(m0, caddr_t); unsigned clsize = CLBYTES - (((u_long) addr) & (CLBYTES-1)); while (len > 0) { unsigned slen = min(len, clsize); segcnt++; if (segcnt > TULIP_MAX_TXSEG) { recopy = 1; m0 = NULL; /* to break out of outside loop */ break; } if (segcnt & 1) { if (--free == 0) { /* * There's no more room but since nothing * has been committed at this point, just * show output is active, put back the * mbuf and return. */ ifp->if_flags |= IFF_OACTIVE; IF_PREPEND(ifq, m); return; } eop = nextout; if (++nextout == ri->ri_last) nextout = ri->ri_first; eop->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN; eop->d_status = d_status; eop->d_addr1 = vtophys(addr); eop->d_length1 = slen; } else { /* * Fill in second half of descriptor */ eop->d_addr2 = vtophys(addr); eop->d_length2 = slen; } d_status = TULIP_DSTS_OWNER; len -= slen; addr += slen; clsize = CLBYTES; } } while ((m0 = m0->m_next) != NULL); /* * The packet exceeds the number of transmit buffer * entries that we can use for one packet, so we have * recopy it into one mbuf and then try again. */ if (recopy) { MGETHDR(m0, M_DONTWAIT, MT_DATA); if (m0 != NULL) { if (m->m_pkthdr.len > MHLEN) { MCLGET(m0, M_DONTWAIT); if ((m0->m_flags & M_EXT) == 0) { m_freem(m); m_freem(m0); continue; } } m_copydata(m, 0, m->m_pkthdr.len, mtod(m0, caddr_t)); m0->m_pkthdr.len = m0->m_len = m->m_pkthdr.len; IF_PREPEND(ifq, m0); } m_freem(m); continue; } /* * The descriptors have been filled in. Now get ready * to transmit. */ #if NBPFILTER > 0 if (sc->tulip_bpf != NULL) bpf_mtap(sc->tulip_bpf, m); #endif IF_ENQUEUE(&sc->tulip_txq, m); /* * Make sure the next descriptor after this packet is owned * by us since it may have been set up above if we ran out * of room in the ring. */ nextout->d_status = 0; /* * If we only used the first segment of the last descriptor, * make sure the second segment will not be used. */ if (segcnt & 1) { eop->d_addr2 = 0; eop->d_length2 = 0; } /* * Mark the last and first segments, indicate we want a transmit * complete interrupt, give the descriptors to the TULIP, and tell * it to transmit! */ eop->d_flag |= TULIP_DFLAG_TxLASTSEG|TULIP_DFLAG_TxWANTINTR; /* * Note that ri->ri_nextout is still the start of the packet * and until we set the OWNER bit, we can still back out of * everything we have done. */ ri->ri_nextout->d_flag |= TULIP_DFLAG_TxFIRSTSEG; ri->ri_nextout->d_status = TULIP_DSTS_OWNER; /* * This advances the ring for us. */ ri->ri_nextout = nextout; ri->ri_free = free; TULIP_WRITE_CSR(sc, csr_txpoll, 1); } if (m != NULL) { ifp->if_flags |= IFF_OACTIVE; IF_PREPEND(ifq, m); } } static int tulip_intr( void *arg) { tulip_softc_t * const sc = (tulip_softc_t *) arg; tulip_uint32_t csr; int progress=0; while ((csr = TULIP_READ_CSR(sc, csr_status)) & (TULIP_STS_NORMALINTR|TULIP_STS_ABNRMLINTR)) { progress = 1; TULIP_WRITE_CSR(sc, csr_status, csr & sc->tulip_intrmask); if (csr & TULIP_STS_SYSERROR) { if ((csr & TULIP_STS_ERRORMASK) == TULIP_STS_ERR_PARITY) { tulip_reset(sc); tulip_init(sc); break; } } if (csr & TULIP_STS_ABNRMLINTR) { printf("%s%d: abnormal interrupt: 0x%05x [0x%05x]\n", sc->tulip_name, sc->tulip_unit, csr, csr & sc->tulip_intrmask); TULIP_WRITE_CSR(sc, csr_command, sc->tulip_cmdmode); } if (csr & TULIP_STS_RXINTR) tulip_rx_intr(sc); if (sc->tulip_txinfo.ri_free < sc->tulip_txinfo.ri_max) { tulip_tx_intr(sc); tulip_start(&sc->tulip_if); } } return (progress); } /* * */ static void tulip_delay_300ns( tulip_softc_t * const sc) { TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); TULIP_READ_CSR(sc, csr_busmode); } #define EMIT do { TULIP_WRITE_CSR(sc, csr_srom_mii, csr); tulip_delay_300ns(sc); } while (0) static void tulip_idle_srom( tulip_softc_t * const sc) { unsigned bit, csr; csr = SROMSEL | SROMRD; EMIT; csr ^= SROMCS; EMIT; csr ^= SROMCLKON; EMIT; /* * Write 25 cycles of 0 which will force the SROM to be idle. */ for (bit = 3 + SROM_BITWIDTH + 16; bit > 0; bit--) { csr ^= SROMCLKOFF; EMIT; /* clock low; data not valid */ csr ^= SROMCLKON; EMIT; /* clock high; data valid */ } csr ^= SROMCLKOFF; EMIT; csr ^= SROMCS; EMIT; EMIT; csr = 0; EMIT; } static void tulip_read_srom( tulip_softc_t * const sc) { int idx; const unsigned bitwidth = SROM_BITWIDTH; const unsigned cmdmask = (SROMCMD_RD << bitwidth); const unsigned msb = 1 << (bitwidth + 3 - 1); unsigned lastidx = (1 << bitwidth) - 1; tulip_idle_srom(sc); for (idx = 0; idx <= lastidx; idx++) { unsigned lastbit, data, bits, bit, csr; csr = SROMSEL | SROMRD; EMIT; csr ^= SROMCSON; EMIT; csr ^= SROMCLKON; EMIT; lastbit = 0; for (bits = idx|cmdmask, bit = bitwidth + 3; bit > 0; bit--, bits <<= 1) { const unsigned thisbit = bits & msb; csr ^= SROMCLKOFF; EMIT; /* clock low; data not valid */ if (thisbit != lastbit) { csr ^= SROMDOUT; EMIT; /* clock low; invert data */ } csr ^= SROMCLKON; EMIT; /* clock high; data valid */ lastbit = thisbit; } csr ^= SROMCLKOFF; EMIT; for (data = 0, bits = 0; bits < 16; bits++) { data <<= 1; csr ^= SROMCLKON; EMIT; /* clock high; data valid */ data |= TULIP_READ_CSR(sc, csr_srom_mii) & SROMDIN ? 1 : 0; csr ^= SROMCLKOFF; EMIT; /* clock low; data not valid */ } sc->tulip_rombuf[idx*2] = data & 0xFF; sc->tulip_rombuf[idx*2+1] = data >> 8; csr = SROMSEL | SROMRD; EMIT; csr = 0; EMIT; } } #define tulip_mchash(mca) (tulip_crc32(mca, 6) & 0x1FF) #define tulip_srom_crcok(databuf) ( \ (tulip_crc32(databuf, 126) & 0xFFFF) == \ ((databuf)[126] | ((databuf)[127] << 8))) static unsigned tulip_crc32( const unsigned char *databuf, size_t datalen) { u_int idx, bit, data, crc = 0xFFFFFFFFUL; for (idx = 0; idx < datalen; idx++) for (data = *databuf++, bit = 0; bit < 8; bit++, data >>= 1) crc = (crc >> 1) ^ (((crc ^ data) & 1) ? TULIP_CRC32_POLY : 0); return crc; } /* * This is the standard method of reading the DEC Address ROMS. */ static int tulip_read_macaddr( tulip_softc_t *sc) { int cksum, rom_cksum, idx; tulip_sint32_t csr; unsigned char tmpbuf[8]; static const u_char testpat[] = { 0xFF, 0, 0x55, 0xAA, 0xFF, 0, 0x55, 0xAA }; if (sc->tulip_chipid == TULIP_DC21040) { TULIP_WRITE_CSR(sc, csr_enetrom, 1); sc->tulip_boardsw = &tulip_dc21040_boardsw; for (idx = 0; idx < 32; idx++) { int cnt = 0; while ((csr = TULIP_READ_CSR(sc, csr_enetrom)) < 0 && cnt < 10000) cnt++; sc->tulip_rombuf[idx] = csr & 0xFF; } } else { /* * Assume all DC21140 board are compatible with the * DEC 10/100 evaluation board. Not really valid but ... */ if (sc->tulip_chipid == TULIP_DC21140) sc->tulip_boardsw = &tulip_dc21140_eb_boardsw; tulip_read_srom(sc); if (tulip_srom_crcok(sc->tulip_rombuf)) { /* * New SROM format. Copy out the Ethernet address. * If it contains a DE500-XA string, then it must be * a DE500-XA. */ bcopy(sc->tulip_rombuf + 20, sc->tulip_hwaddr, 6); if (bcmp(sc->tulip_rombuf + 29, "DE500-XA", 8) == 0) sc->tulip_boardsw = &tulip_dc21140_de500_boardsw; if (sc->tulip_boardsw == NULL) return -6; return 0; } } if (bcmp(&sc->tulip_rombuf[0], &sc->tulip_rombuf[16], 8) != 0) { /* * Some folks don't use the standard ethernet rom format * but instead just put the address in the first 6 bytes * of the rom and let the rest be all 0xffs. (Can we say * ZNYX???) */ for (idx = 6; idx < 32; idx++) { if (sc->tulip_rombuf[idx] != 0xFF) return -4; } /* * Make sure the address is not multicast or locally assigned * that the OUI is not 00-00-00. */ if ((sc->tulip_rombuf[0] & 3) != 0) return -4; if (sc->tulip_rombuf[0] == 0 && sc->tulip_rombuf[1] == 0 && sc->tulip_rombuf[2] == 0) return -4; bcopy(sc->tulip_rombuf, sc->tulip_hwaddr, 6); return 0; } if (bcmp(&sc->tulip_rombuf[24], testpat, 8) != 0) return -3; tmpbuf[0] = sc->tulip_rombuf[15]; tmpbuf[1] = sc->tulip_rombuf[14]; tmpbuf[2] = sc->tulip_rombuf[13]; tmpbuf[3] = sc->tulip_rombuf[12]; tmpbuf[4] = sc->tulip_rombuf[11]; tmpbuf[5] = sc->tulip_rombuf[10]; tmpbuf[6] = sc->tulip_rombuf[9]; tmpbuf[7] = sc->tulip_rombuf[8]; if (bcmp(&sc->tulip_rombuf[0], tmpbuf, 8) != 0) return -2; bcopy(sc->tulip_rombuf, sc->tulip_hwaddr, 6); cksum = *(u_short *) &sc->tulip_hwaddr[0]; cksum *= 2; if (cksum > 65535) cksum -= 65535; cksum += *(u_short *) &sc->tulip_hwaddr[2]; if (cksum > 65535) cksum -= 65535; cksum *= 2; if (cksum > 65535) cksum -= 65535; cksum += *(u_short *) &sc->tulip_hwaddr[4]; if (cksum >= 65535) cksum -= 65535; rom_cksum = *(u_short *) &sc->tulip_rombuf[6]; if (cksum != rom_cksum) return -1; if (sc->tulip_chipid == TULIP_DC21140) { if (sc->tulip_hwaddr[0] == TULIP_OUI_COGENT_0 && sc->tulip_hwaddr[1] == TULIP_OUI_COGENT_1 && sc->tulip_hwaddr[2] == TULIP_OUI_COGENT_2) { if (sc->tulip_rombuf[32] == TULIP_COGENT_EM100_ID) sc->tulip_boardsw = &tulip_dc21140_cogent_em100_boardsw; } } return 0; } static void tulip_addr_filter( tulip_softc_t * const sc) { tulip_uint32_t *sp = sc->tulip_setupdata; struct ether_multistep step; struct ether_multi *enm; int i; sc->tulip_flags &= ~TULIP_WANTHASH; sc->tulip_flags |= TULIP_WANTSETUP; sc->tulip_cmdmode &= ~TULIP_CMD_RXRUN; sc->tulip_intrmask &= ~TULIP_STS_RXSTOPPED; if (sc->tulip_ac.ac_multicnt > 14) { unsigned hash; /* * If we have more than 14 multicasts, we have * go into hash perfect mode (512 bit multicast * hash and one perfect hardware). */ bzero(sc->tulip_setupdata, sizeof(sc->tulip_setupdata)); hash = tulip_mchash(etherbroadcastaddr); sp[hash >> 4] |= 1 << (hash & 0xF); ETHER_FIRST_MULTI(step, &sc->tulip_ac, enm); while (enm != NULL) { hash = tulip_mchash(enm->enm_addrlo); sp[hash >> 4] |= 1 << (hash & 0xF); ETHER_NEXT_MULTI(step, enm); } sc->tulip_flags |= TULIP_WANTHASH; sp[39] = ((u_short *) sc->tulip_ac.ac_enaddr)[0]; sp[40] = ((u_short *) sc->tulip_ac.ac_enaddr)[1]; sp[41] = ((u_short *) sc->tulip_ac.ac_enaddr)[2]; } else { /* * Else can get perfect filtering for 16 addresses. */ i = 0; ETHER_FIRST_MULTI(step, &sc->tulip_ac, enm); for (; enm != NULL; i++) { *sp++ = ((u_short *) enm->enm_addrlo)[0]; *sp++ = ((u_short *) enm->enm_addrlo)[1]; *sp++ = ((u_short *) enm->enm_addrlo)[2]; ETHER_NEXT_MULTI(step, enm); } /* * If an IP address is enabled, turn on broadcast */ if (sc->tulip_ac.ac_ipaddr.s_addr != 0) { i++; *sp++ = 0xFFFF; *sp++ = 0xFFFF; *sp++ = 0xFFFF; } /* * Pad the rest with our hardware address */ for (; i < 16; i++) { *sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[0]; *sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[1]; *sp++ = ((u_short *) sc->tulip_ac.ac_enaddr)[2]; } } } /*extern void arp_ifinit(struct arpcom *, struct ifaddr*);*/ static int tulip_ioctl( struct ifnet * const ifp, ioctl_cmd_t cmd, caddr_t data) { tulip_softc_t * const sc = TULIP_UNIT_TO_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: { ((struct arpcom *)ifp)->ac_ipaddr = IA_SIN(ifa)->sin_addr; tulip_addr_filter(sc); /* reset multicast filtering */ tulip_init(sc); #if defined(__FreeBSD__) || defined(__NetBSD__) arp_ifinit((struct arpcom *)ifp, ifa); #elif defined(__bsdi__) arpwhohas((struct arpcom *)ifp, &IA_SIN(ifa)->sin_addr); #endif break; } #endif /* INET */ #ifdef NS /* * This magic copied from if_is.c; I don't use XNS, * so I have no way of telling if this actually * works or not. */ case AF_NS: { struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr); if (ns_nullhost(*ina)) { ina->x_host = *(union ns_host *)(sc->tulip_ac.ac_enaddr); } else { ifp->if_flags &= ~IFF_RUNNING; bcopy((caddr_t)ina->x_host.c_host, (caddr_t)sc->tulip_ac.ac_enaddr, sizeof sc->tulip_ac.ac_enaddr); } tulip_init(sc); break; } #endif /* NS */ default: { tulip_init(sc); break; } } break; } case SIOCSIFFLAGS: { /* * Changing the connection forces a reset. */ if (sc->tulip_flags & TULIP_ALTPHYS) { if ((ifp->if_flags & IFF_ALTPHYS) == 0) tulip_reset(sc); } else { if (ifp->if_flags & IFF_ALTPHYS) tulip_reset(sc); } tulip_init(sc); break; } case SIOCADDMULTI: case SIOCDELMULTI: { /* * Update multicast listeners */ if (cmd == SIOCADDMULTI) error = ether_addmulti(ifr, &sc->tulip_ac); else error = ether_delmulti(ifr, &sc->tulip_ac); if (error == ENETRESET) { tulip_addr_filter(sc); /* reset multicast filtering */ tulip_init(sc); error = 0; } break; } #if defined(SIOCSIFMTU) #if !defined(ifr_mtu) #define ifr_mtu ifr_metric #endif case SIOCSIFMTU: /* * Set the interface MTU. */ if (ifr->ifr_mtu > ETHERMTU) { error = EINVAL; } else { ifp->if_mtu = ifr->ifr_mtu; } break; #endif default: { error = EINVAL; break; } } splx(s); return error; } static void tulip_attach( tulip_softc_t * const sc) { struct ifnet * const ifp = &sc->tulip_if; ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST; ifp->if_ioctl = tulip_ioctl; ifp->if_output = ether_output; ifp->if_start = tulip_start; #ifdef __FreeBSD__ printf("%s%d", sc->tulip_name, sc->tulip_unit); #endif printf(": %s%s pass %d.%d Ethernet address %s\n", sc->tulip_boardsw->bd_description, tulip_chipdescs[sc->tulip_chipid], (sc->tulip_revinfo & 0xF0) >> 4, sc->tulip_revinfo & 0x0F, ether_sprintf(sc->tulip_hwaddr)); if ((*sc->tulip_boardsw->bd_media_probe)(sc)) { ifp->if_flags |= IFF_ALTPHYS; } else { sc->tulip_flags |= TULIP_ALTPHYS; } tulip_reset(sc); if_attach(ifp); #if defined(__NetBSD__) ether_ifattach(ifp); #endif #if NBPFILTER > 0 bpfattach(&sc->tulip_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header)); #endif } static void tulip_initcsrs( tulip_softc_t * const sc, volatile tulip_uint32_t *va_csrs, size_t csr_size) { sc->tulip_csrs.csr_busmode = va_csrs + 0 * csr_size; sc->tulip_csrs.csr_txpoll = va_csrs + 1 * csr_size; sc->tulip_csrs.csr_rxpoll = va_csrs + 2 * csr_size; sc->tulip_csrs.csr_rxlist = va_csrs + 3 * csr_size; sc->tulip_csrs.csr_txlist = va_csrs + 4 * csr_size; sc->tulip_csrs.csr_status = va_csrs + 5 * csr_size; sc->tulip_csrs.csr_command = va_csrs + 6 * csr_size; sc->tulip_csrs.csr_intr = va_csrs + 7 * csr_size; sc->tulip_csrs.csr_missed_frame = va_csrs + 8 * csr_size; if (sc->tulip_chipid == TULIP_DC21040) { sc->tulip_csrs.csr_enetrom = (tulip_sint32_t *) va_csrs + 9 * csr_size; sc->tulip_csrs.csr_reserved = va_csrs + 10 * csr_size; sc->tulip_csrs.csr_full_duplex = va_csrs + 11 * csr_size; sc->tulip_csrs.csr_sia_status = va_csrs + 12 * csr_size; sc->tulip_csrs.csr_sia_connectivity = va_csrs + 13 * csr_size; sc->tulip_csrs.csr_sia_tx_rx = va_csrs + 14 * csr_size; sc->tulip_csrs.csr_sia_general = va_csrs + 15 * csr_size; } else if (sc->tulip_chipid == TULIP_DC21140 || sc->tulip_chipid == TULIP_DC21041) { sc->tulip_csrs.csr_srom_mii = va_csrs + 9 * csr_size; sc->tulip_csrs.csr_gp_timer = va_csrs + 11 * csr_size; sc->tulip_csrs.csr_gp = va_csrs + 12 * csr_size; sc->tulip_csrs.csr_watchdog = va_csrs + 15 * csr_size; } } static void tulip_initring( tulip_softc_t * const sc, tulip_ringinfo_t * const ri, tulip_desc_t *descs, int ndescs) { ri->ri_max = ndescs; ri->ri_first = descs; ri->ri_last = ri->ri_first + ri->ri_max; bzero((caddr_t) ri->ri_first, sizeof(ri->ri_first[0]) * ri->ri_max); ri->ri_last[-1].d_flag = TULIP_DFLAG_ENDRING; } /* * This is the PCI configuration support. Since the DC21040 is available * on both EISA and PCI boards, one must be careful in how defines the * DC21040 in the config file. */ #define PCI_CFID 0x00 /* Configuration ID */ #define PCI_CFCS 0x04 /* Configurtion Command/Status */ #define PCI_CFRV 0x08 /* Configuration Revision */ #define PCI_CFLT 0x0c /* Configuration Latency Timer */ #define PCI_CBIO 0x10 /* Configuration Base IO Address */ #define PCI_CBMA 0x14 /* Configuration Base Memory Address */ #define PCI_CFIT 0x3c /* Configuration Interrupt */ #define PCI_CFDA 0x40 /* Configuration Driver Area */ #if defined(__alpha__) #define TULIP_PCI_CSRSIZE (256 / sizeof(tulip_uint32_t)) #define TULIP_PCI_CSROFFSET (24 / sizeof(tulip_uint32_t)) #elif defined(__i386__) #define TULIP_PCI_CSRSIZE (8 / sizeof(tulip_uint32_t)) #define TULIP_PCI_CSROFFSET 0 #endif #if defined(__FreeBSD__) #define TULIP_PCI_ATTACH_ARGS pcici_t config_id, int unit static int tulip_pci_shutdown( struct kern_devconf * const kdc, int force) { if (kdc->kdc_unit < NDE) { tulip_softc_t * const sc = TULIP_UNIT_TO_SOFTC(kdc->kdc_unit); TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET); DELAY(10); /* Wait 10 microsends (actually 50 PCI cycles but at 33MHz that comes to two microseconds but wait a bit longer anyways) */ } (void) dev_detach(kdc); return 0; } static char* tulip_pci_probe( pcici_t config_id, pcidi_t device_id) { if (device_id == 0x00021011ul) return "Digital DC21040 Ethernet"; if (device_id == 0x00141011ul) return "Digital DC21041 Ethernet"; if (device_id == 0x00091011ul) return "Digital DC21140 Fast Ethernet"; return NULL; } static void tulip_pci_attach(TULIP_PCI_ATTACH_ARGS); static u_long tulip_pci_count; struct pci_device dedevice = { "de", tulip_pci_probe, tulip_pci_attach, &tulip_pci_count, tulip_pci_shutdown, }; DATA_SET (pcidevice_set, dedevice); #endif /* __FreeBSD__ */ #if defined(__bsdi__) #define TULIP_PCI_ATTACH_ARGS struct device *parent, struct device *self, void *aux static void tulip_pci_shutdown( void *arg) { tulip_softc_t * const sc = (tulip_softc_t *) arg; TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET); DELAY(10); /* Wait 10 microsends (actually 50 PCI cycles but at 33MHz that comes to two microseconds but wait a bit longer anyways) */ } static int tulip_pci_match( pci_devaddr_t *pa) { int irq; unsigned id; id = pci_inl(pa, PCI_VENDOR_ID); if ((id & 0xFFFF) != 0x1011) return 0; id >>= 16; if (id != 2 && id != 9 && id != 0x14) return 0; irq = pci_inl(pa, PCI_I_PIN) & 0xFF; if (irq == 0 || irq >= 16) return 0; return 1; } static int tulip_pci_probe( struct device *parent, struct cfdata *cf, void *aux) { struct isa_attach_args * const ia = (struct isa_attach_args *) aux; unsigned irq; pci_devaddr_t *pa; pa = pci_scan(tulip_pci_match); if (pa == NULL) return 0; irq = (1 << (pci_inl(pa, PCI_I_PIN) & 0xFF)); if (ia->ia_irq != IRQUNK && irq != ia->ia_irq) { printf("fpa%d: error: desired IRQ of %d does not match device's actual IRQ of %d,\n", cf->cf_unit, ffs(ia->ia_irq) - 1, ffs(irq) - 1); return 0; } if (ia->ia_irq == IRQUNK) { if ((irq = isa_irqalloc(irq)) == 0) return 0; ia->ia_irq = irq; } /* PCI bus masters don't use host DMA channels */ ia->ia_drq = DRQNONE; /* Get the memory base address; assume the BIOS set it up correctly */ ia->ia_maddr = (caddr_t) (pci_inl(pa, PCI_CBMA) & ~7); pci_outl(pa, PCI_CBMA, 0xFFFFFFFF); ia->ia_msize = ((~pci_inl(pa, PCI_CBMA)) | 7) + 1; pci_outl(pa, PCI_CBMA, (int) ia->ia_maddr); /* Disable I/O space access */ pci_outl(pa, PCI_COMMAND, pci_inl(pa, PCI_COMMAND) & ~1); ia->ia_iobase = 0; ia->ia_iosize = 0; ia->ia_aux = (void *) pa; return 1; } static void tulip_pci_attach(TULIP_PCI_ATTACH_ARGS); struct cfdriver decd = { 0, "de", tulip_pci_probe, tulip_pci_attach, DV_IFNET, sizeof(tulip_softc_t) }; #endif /* __bsdi__ */ #if defined(__NetBSD__) #define TULIP_PCI_ATTACH_ARGS struct device *parent, struct device *self, void *aux #if 0 /* XXX! */ static void tulip_pci_shutdown( void *arg) { tulip_softc_t * const sc = (tulip_softc_t *) arg; TULIP_WRITE_CSR(sc, csr_busmode, TULIP_BUSMODE_SWRESET); DELAY(10); /* Wait 10 microsends (actually 50 PCI cycles but at 33MHz that comes to two microseconds but wait a bit longer anyways) */ } #endif static int tulip_pci_probe( struct device *parent, void *match, void *aux) { struct pci_attach_args *pa = (struct pci_attach_args *) aux; if (pa->pa_id == 0x00021011ul || pa->pa_id == 0x00141011ul || pa->pa_id == 0x00091011ul) return 1; return 0; } static void tulip_pci_attach(TULIP_PCI_ATTACH_ARGS); struct cfdriver decd = { 0, "de", tulip_pci_probe, tulip_pci_attach, DV_IFNET, sizeof(tulip_softc_t) }; #endif /* __NetBSD__ */ static void tulip_pci_attach( TULIP_PCI_ATTACH_ARGS) { #if defined(__FreeBSD__) tulip_softc_t *sc; #endif #if defined(__bsdi__) tulip_softc_t * const sc = (tulip_softc_t *) self; struct isa_attach_args * const ia = (struct isa_attach_args *) aux; pci_devaddr_t *pa = (pci_devaddr_t *) ia->ia_aux; int unit = sc->tulip_dev.dv_unit; #endif #if defined(__NetBSD__) tulip_softc_t * const sc = (tulip_softc_t *) self; struct pci_attach_args * const pa = (struct pci_attach_args *) aux; int unit = sc->tulip_dev.dv_unit; #endif int retval, idx, revinfo, id; vm_offset_t va_csrs, pa_csrs; tulip_desc_t *rxdescs, *txdescs; tulip_chipid_t chipid; #if defined(__FreeBSD__) if (unit >= NDE) { printf("de%d: not configured; kernel is built for only %d device%s.\n", unit, NDE, NDE == 1 ? "" : "s"); return; } #endif #if defined(__FreeBSD__) revinfo = pci_conf_read(config_id, PCI_CFRV) & 0xFF; id = pci_conf_read(config_id, PCI_CFID); #endif #if defined(__bsdi__) revinfo = pci_inl(pa, PCI_CFRV) & 0xFF; id = pci_inl(pa, PCI_CFID); #endif #if defined(__NetBSD__) revinfo = pci_conf_read(pa->pa_tag, PCI_CFRV) & 0xFF; id = pa->pa_id; #endif if (id == 0x00021011ul) chipid = TULIP_DC21040; else if (id == 0x00091011) chipid = TULIP_DC21140; else if (id == 0x00141011) chipid = TULIP_DC21041; else return; if (chipid == TULIP_DC21040 && revinfo < 0x20) { #ifdef __FreeBSD__ printf("de%d", unit); #endif printf(": not configured; DC21040 pass 2.0 required (%d.%d found)\n", revinfo >> 4, revinfo & 0x0f); return; } else if (chipid == TULIP_DC21140 && revinfo < 0x11) { #ifdef __FreeBSD__ printf("de%d", unit); #endif printf(": not configured; DC21140 pass 1.1 required (%d.%d found)\n", revinfo >> 4, revinfo & 0x0f); return; } #if defined(__FreeBSD__) sc = (tulip_softc_t *) malloc(sizeof(*sc), M_DEVBUF, M_NOWAIT); if (sc == NULL) return; bzero(sc, sizeof(*sc)); /* Zero out the softc*/ #endif rxdescs = (tulip_desc_t *) malloc(sizeof(tulip_desc_t) * TULIP_RXDESCS, M_DEVBUF, M_NOWAIT); if (rxdescs == NULL) { #if defined(__FreeBSD__) free((caddr_t) sc, M_DEVBUF); #endif return; } txdescs = (tulip_desc_t *) malloc(sizeof(tulip_desc_t) * TULIP_TXDESCS, M_DEVBUF, M_NOWAIT); if (txdescs == NULL) { free((caddr_t) rxdescs, M_DEVBUF); #if defined(__FreeBSD__) free((caddr_t) sc, M_DEVBUF); #endif return; } sc->tulip_chipid = chipid; sc->tulip_unit = unit; sc->tulip_name = "de"; #if defined(__FreeBSD__) retval = pci_map_mem(config_id, PCI_CBMA, &va_csrs, &pa_csrs); if (!retval) { free((caddr_t) txdescs, M_DEVBUF); free((caddr_t) rxdescs, M_DEVBUF); free((caddr_t) sc, M_DEVBUF); return; } tulips[unit] = sc; #endif #if defined(__bsdi__) va_csrs = (vm_offset_t) mapphys((vm_offset_t) ia->ia_maddr, ia->ia_msize); #endif #if defined(__NetBSD__) if (pci_map_mem(pa->pa_tag, PCI_CBMA, &va_csrs, &pa_csrs)) { free((caddr_t) txdescs, M_DEVBUF); free((caddr_t) rxdescs, M_DEVBUF); return; } #endif sc->tulip_revinfo = revinfo; tulip_initcsrs(sc, ((volatile tulip_uint32_t *) va_csrs) + TULIP_PCI_CSROFFSET, TULIP_PCI_CSRSIZE); tulip_initring(sc, &sc->tulip_rxinfo, rxdescs, TULIP_RXDESCS); tulip_initring(sc, &sc->tulip_txinfo, txdescs, TULIP_TXDESCS); if ((retval = tulip_read_macaddr(sc)) < 0) { #ifdef __FreeBSD__ printf("%s%d", sc->tulip_name, sc->tulip_unit); #endif printf(": can't read ENET ROM (why=%d) (", retval); for (idx = 0; idx < 32; idx++) printf("%02x", sc->tulip_rombuf[idx]); printf("\n"); printf("%s%d: %s%s pass %d.%d Ethernet address %s\n", sc->tulip_name, sc->tulip_unit, (sc->tulip_boardsw != NULL ? sc->tulip_boardsw->bd_description : ""), tulip_chipdescs[sc->tulip_chipid], (sc->tulip_revinfo & 0xF0) >> 4, sc->tulip_revinfo & 0x0F, "unknown"); } else { tulip_reset(sc); tulip_attach(sc); #if defined(__NetBSD__) sc->tulip_ih = pci_map_int(pa->pa_tag, PCI_IPL_NET, tulip_intr, sc); if (sc->tulip_ih == NULL) { printf("%s%d: couldn't map interrupt\n", sc->tulip_name, sc->tulip_unit); return; } #endif #if defined(__FreeBSD__) pci_map_int (config_id, tulip_intr, (void*) sc, &net_imask); #endif #if defined(__bsdi__) isa_establish(&sc->tulip_id, &sc->tulip_dev); sc->tulip_ih.ih_fun = tulip_intr; sc->tulip_ih.ih_arg = (void *)sc; intr_establish(ia->ia_irq, &sc->tulip_ih, DV_NET); sc->tulip_ats.func = tulip_pci_shutdown; sc->tulip_ats.arg = (void *) sc; atshutdown(&sc->tulip_ats, ATSH_ADD); #endif } } #endif /* NDE > 0 */