diff options
Diffstat (limited to 'sys/dev/de/if_de.c')
| -rw-r--r-- | sys/dev/de/if_de.c | 5261 |
1 files changed, 5261 insertions, 0 deletions
diff --git a/sys/dev/de/if_de.c b/sys/dev/de/if_de.c new file mode 100644 index 0000000..3aa15c8 --- /dev/null +++ b/sys/dev/de/if_de.c @@ -0,0 +1,5261 @@ +/* $NetBSD: if_de.c,v 1.86 1999/06/01 19:17:59 thorpej Exp $ */ +/*- + * Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.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 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. + * + * Id: if_de.c,v 1.94 1997/07/03 16:55:07 thomas Exp + */ + +/* + * DEC 21040 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 21040, 21041, or 21140 (mostly). + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#define TULIP_HDR_DATA + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/endian.h> +#include <sys/mbuf.h> +#include <sys/socket.h> +#include <sys/sockio.h> +#include <sys/malloc.h> +#include <sys/kernel.h> +#include <sys/eventhandler.h> +#include <machine/bus.h> +#include <machine/resource.h> +#include <sys/bus.h> +#include <sys/rman.h> + +#include <net/if.h> +#include <net/if_arp.h> +#include <net/ethernet.h> +#include <net/if_media.h> +#include <net/if_dl.h> +#ifdef TULIP_USE_SOFTINTR +#include <net/netisr.h> +#endif + +#include <net/bpf.h> + +#ifdef INET +#include <netinet/in.h> +#include <netinet/if_ether.h> +#endif + +#include <vm/vm.h> + +#include <net/if_var.h> +#include <vm/pmap.h> +#include <pci/pcivar.h> +#include <pci/pcireg.h> +#include <pci/dc21040reg.h> + +/* + * Intel CPUs should use I/O mapped access. + */ +#if defined(__i386__) +#define TULIP_IOMAPPED +#endif + +#if 0 +/* + * This turns on all sort of debugging stuff and make the + * driver much larger. + */ +#define TULIP_DEBUG +#endif + +#if 0 +#define TULIP_PERFSTATS +#endif + +#if 0 +#define TULIP_USE_SOFTINTR +#endif + +#define TULIP_HZ 10 + +#include <pci/if_devar.h> + +/* + * This module supports + * the DEC 21040 PCI Ethernet Controller. + * the DEC 21041 PCI Ethernet Controller. + * the DEC 21140 PCI Fast Ethernet Controller. + */ +static void tulip_mii_autonegotiate(tulip_softc_t * const sc, const unsigned phyaddr); +static void tulip_intr_shared(void *arg); +static void tulip_intr_normal(void *arg); +static void tulip_init(tulip_softc_t * const sc); +static void tulip_ifinit(void *); +static void tulip_reset(tulip_softc_t * const sc); +static void tulip_ifstart_one(struct ifnet *ifp); +static void tulip_ifstart(struct ifnet *ifp); +static struct mbuf *tulip_txput(tulip_softc_t * const sc, struct mbuf *m); +static void tulip_txput_setup(tulip_softc_t * const sc); +static void tulip_rx_intr(tulip_softc_t * const sc); +static void tulip_addr_filter(tulip_softc_t * const sc); +static unsigned tulip_mii_readreg(tulip_softc_t * const sc, unsigned devaddr, unsigned regno); +static void tulip_mii_writereg(tulip_softc_t * const sc, unsigned devaddr, unsigned regno, unsigned data); +static int tulip_mii_map_abilities(tulip_softc_t * const sc, unsigned abilities); +static tulip_media_t tulip_mii_phy_readspecific(tulip_softc_t * const sc); +static int tulip_srom_decode(tulip_softc_t * const sc); +static int tulip_ifmedia_change(struct ifnet * const ifp); +static void tulip_ifmedia_status(struct ifnet * const ifp, struct ifmediareq *req); +/* static void tulip_21140_map_media(tulip_softc_t *sc); */ + +static void +tulip_timeout_callback( + void *arg) +{ + tulip_softc_t * const sc = arg; + int s = splimp(); + + TULIP_PERFSTART(timeout) + + sc->tulip_flags &= ~TULIP_TIMEOUTPENDING; + sc->tulip_probe_timeout -= 1000 / TULIP_HZ; + (sc->tulip_boardsw->bd_media_poll)(sc, TULIP_MEDIAPOLL_TIMER); + + TULIP_PERFEND(timeout); + splx(s); +} + +static void +tulip_timeout( + tulip_softc_t * const sc) +{ + if (sc->tulip_flags & TULIP_TIMEOUTPENDING) + return; + sc->tulip_flags |= TULIP_TIMEOUTPENDING; + timeout(tulip_timeout_callback, sc, (hz + TULIP_HZ / 2) / TULIP_HZ); +} + +#if defined(TULIP_NEED_FASTTIMEOUT) +static void +tulip_fasttimeout_callback( + void *arg) +{ + tulip_softc_t * const sc = arg; + int s = splimp(); + + sc->tulip_flags &= ~TULIP_FASTTIMEOUTPENDING; + (sc->tulip_boardsw->bd_media_poll)(sc, TULIP_MEDIAPOLL_FASTTIMER); + splx(s); +} + +static void +tulip_fasttimeout( + tulip_softc_t * const sc) +{ + if (sc->tulip_flags & TULIP_FASTTIMEOUTPENDING) + return; + sc->tulip_flags |= TULIP_FASTTIMEOUTPENDING; + timeout(tulip_fasttimeout_callback, sc, 1); +} +#endif + +static int +tulip_txprobe( + tulip_softc_t * const sc) +{ + struct mbuf *m; + /* + * Before we are sure this is the right media we need + * to send a small packet to make sure there's carrier. + * Strangely, BNC and AUI will "see" receive data if + * either is connected so the transmit is the only way + * to verify the connectivity. + */ + MGETHDR(m, M_DONTWAIT, MT_DATA); + if (m == NULL) + return 0; + /* + * Construct a LLC TEST message which will point to ourselves. + */ + bcopy(sc->tulip_enaddr, mtod(m, struct ether_header *)->ether_dhost, 6); + bcopy(sc->tulip_enaddr, mtod(m, struct ether_header *)->ether_shost, 6); + mtod(m, struct ether_header *)->ether_type = htons(3); + mtod(m, unsigned char *)[14] = 0; + mtod(m, unsigned char *)[15] = 0; + mtod(m, unsigned char *)[16] = 0xE3; /* LLC Class1 TEST (no poll) */ + m->m_len = m->m_pkthdr.len = sizeof(struct ether_header) + 3; + /* + * send it! + */ + sc->tulip_cmdmode |= TULIP_CMD_TXRUN; + sc->tulip_intrmask |= TULIP_STS_TXINTR; + sc->tulip_flags |= TULIP_TXPROBE_ACTIVE; + TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode); + TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask); + if ((m = tulip_txput(sc, m)) != NULL) + m_freem(m); + sc->tulip_probe.probe_txprobes++; + return 1; +} + +#ifdef BIG_PACKET +#define TULIP_SIAGEN_WATCHDOG (sc->tulip_if.if_mtu > ETHERMTU ? TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE : 0) +#else +#define TULIP_SIAGEN_WATCHDOG 0 +#endif + +static void +tulip_media_set( + tulip_softc_t * const sc, + tulip_media_t media) +{ + const tulip_media_info_t *mi = sc->tulip_mediums[media]; + + if (mi == NULL) + return; + + /* + * If we are switching media, make sure we don't think there's + * any stale RX activity + */ + sc->tulip_flags &= ~TULIP_RXACT; + if (mi->mi_type == TULIP_MEDIAINFO_SIA) { + TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET); + TULIP_CSR_WRITE(sc, csr_sia_tx_rx, mi->mi_sia_tx_rx); + if (sc->tulip_features & TULIP_HAVE_SIAGP) { + TULIP_CSR_WRITE(sc, csr_sia_general, mi->mi_sia_gp_control|mi->mi_sia_general|TULIP_SIAGEN_WATCHDOG); + DELAY(50); + TULIP_CSR_WRITE(sc, csr_sia_general, mi->mi_sia_gp_data|mi->mi_sia_general|TULIP_SIAGEN_WATCHDOG); + } else { + TULIP_CSR_WRITE(sc, csr_sia_general, mi->mi_sia_general|TULIP_SIAGEN_WATCHDOG); + } + TULIP_CSR_WRITE(sc, csr_sia_connectivity, mi->mi_sia_connectivity); + } else if (mi->mi_type == TULIP_MEDIAINFO_GPR) { +#define TULIP_GPR_CMDBITS (TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION|TULIP_CMD_SCRAMBLER|TULIP_CMD_TXTHRSHLDCTL) + /* + * If the cmdmode bits don't match the currently operating mode, + * set the cmdmode appropriately and reset the chip. + */ + if (((mi->mi_cmdmode ^ TULIP_CSR_READ(sc, csr_command)) & TULIP_GPR_CMDBITS) != 0) { + sc->tulip_cmdmode &= ~TULIP_GPR_CMDBITS; + sc->tulip_cmdmode |= mi->mi_cmdmode; + tulip_reset(sc); + } + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_PINSET|sc->tulip_gpinit); + DELAY(10); + TULIP_CSR_WRITE(sc, csr_gp, (u_int8_t) mi->mi_gpdata); + } else if (mi->mi_type == TULIP_MEDIAINFO_SYM) { + /* + * If the cmdmode bits don't match the currently operating mode, + * set the cmdmode appropriately and reset the chip. + */ + if (((mi->mi_cmdmode ^ TULIP_CSR_READ(sc, csr_command)) & TULIP_GPR_CMDBITS) != 0) { + sc->tulip_cmdmode &= ~TULIP_GPR_CMDBITS; + sc->tulip_cmdmode |= mi->mi_cmdmode; + tulip_reset(sc); + } + TULIP_CSR_WRITE(sc, csr_sia_general, mi->mi_gpcontrol); + TULIP_CSR_WRITE(sc, csr_sia_general, mi->mi_gpdata); + } else if (mi->mi_type == TULIP_MEDIAINFO_MII + && sc->tulip_probe_state != TULIP_PROBE_INACTIVE) { + int idx; + if (sc->tulip_features & TULIP_HAVE_SIAGP) { + const u_int8_t *dp; + dp = &sc->tulip_rombuf[mi->mi_reset_offset]; + for (idx = 0; idx < mi->mi_reset_length; idx++, dp += 2) { + DELAY(10); + TULIP_CSR_WRITE(sc, csr_sia_general, (dp[0] + 256 * dp[1]) << 16); + } + sc->tulip_phyaddr = mi->mi_phyaddr; + dp = &sc->tulip_rombuf[mi->mi_gpr_offset]; + for (idx = 0; idx < mi->mi_gpr_length; idx++, dp += 2) { + DELAY(10); + TULIP_CSR_WRITE(sc, csr_sia_general, (dp[0] + 256 * dp[1]) << 16); + } + } else { + for (idx = 0; idx < mi->mi_reset_length; idx++) { + DELAY(10); + TULIP_CSR_WRITE(sc, csr_gp, sc->tulip_rombuf[mi->mi_reset_offset + idx]); + } + sc->tulip_phyaddr = mi->mi_phyaddr; + for (idx = 0; idx < mi->mi_gpr_length; idx++) { + DELAY(10); + TULIP_CSR_WRITE(sc, csr_gp, sc->tulip_rombuf[mi->mi_gpr_offset + idx]); + } + } + if (sc->tulip_flags & TULIP_TRYNWAY) { + tulip_mii_autonegotiate(sc, sc->tulip_phyaddr); + } else if ((sc->tulip_flags & TULIP_DIDNWAY) == 0) { + u_int32_t data = tulip_mii_readreg(sc, sc->tulip_phyaddr, PHYREG_CONTROL); + data &= ~(PHYCTL_SELECT_100MB|PHYCTL_FULL_DUPLEX|PHYCTL_AUTONEG_ENABLE); + sc->tulip_flags &= ~TULIP_DIDNWAY; + if (TULIP_IS_MEDIA_FD(media)) + data |= PHYCTL_FULL_DUPLEX; + if (TULIP_IS_MEDIA_100MB(media)) + data |= PHYCTL_SELECT_100MB; + tulip_mii_writereg(sc, sc->tulip_phyaddr, PHYREG_CONTROL, data); + } + } +} + +static void +tulip_linkup( + tulip_softc_t * const sc, + tulip_media_t media) +{ + if ((sc->tulip_flags & TULIP_LINKUP) == 0) + sc->tulip_flags |= TULIP_PRINTLINKUP; + sc->tulip_flags |= TULIP_LINKUP; + sc->tulip_if.if_flags &= ~IFF_OACTIVE; +#if 0 /* XXX how does with work with ifmedia? */ + if ((sc->tulip_flags & TULIP_DIDNWAY) == 0) { + if (sc->tulip_if.if_flags & IFF_FULLDUPLEX) { + if (TULIP_CAN_MEDIA_FD(media) + && sc->tulip_mediums[TULIP_FD_MEDIA_OF(media)] != NULL) + media = TULIP_FD_MEDIA_OF(media); + } else { + if (TULIP_IS_MEDIA_FD(media) + && sc->tulip_mediums[TULIP_HD_MEDIA_OF(media)] != NULL) + media = TULIP_HD_MEDIA_OF(media); + } + } +#endif + if (sc->tulip_media != media) { +#ifdef TULIP_DEBUG + sc->tulip_dbg.dbg_last_media = sc->tulip_media; +#endif + sc->tulip_media = media; + sc->tulip_flags |= TULIP_PRINTMEDIA; + if (TULIP_IS_MEDIA_FD(sc->tulip_media)) { + sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX; + } else if (sc->tulip_chipid != TULIP_21041 || (sc->tulip_flags & TULIP_DIDNWAY) == 0) { + sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX; + } + } + /* + * We could set probe_timeout to 0 but setting to 3000 puts this + * in one central place and the only matters is tulip_link is + * followed by a tulip_timeout. Therefore setting it should not + * result in aberrant behavour. + */ + sc->tulip_probe_timeout = 3000; + sc->tulip_probe_state = TULIP_PROBE_INACTIVE; + sc->tulip_flags &= ~(TULIP_TXPROBE_ACTIVE|TULIP_TRYNWAY); + if (sc->tulip_flags & TULIP_INRESET) { + tulip_media_set(sc, sc->tulip_media); + } else if (sc->tulip_probe_media != sc->tulip_media) { + /* + * No reason to change media if we have the right media. + */ + tulip_reset(sc); + } + tulip_init(sc); +} + +static void +tulip_media_print( + tulip_softc_t * const sc) +{ + if ((sc->tulip_flags & TULIP_LINKUP) == 0) + return; + if (sc->tulip_flags & TULIP_PRINTMEDIA) { + printf("%s%d: enabling %s port\n", + sc->tulip_name, sc->tulip_unit, + tulip_mediums[sc->tulip_media]); + sc->tulip_flags &= ~(TULIP_PRINTMEDIA|TULIP_PRINTLINKUP); + } else if (sc->tulip_flags & TULIP_PRINTLINKUP) { + printf("%s%d: link up\n", sc->tulip_name, sc->tulip_unit); + sc->tulip_flags &= ~TULIP_PRINTLINKUP; + } +} + +#if defined(TULIP_DO_GPR_SENSE) +static tulip_media_t +tulip_21140_gpr_media_sense( + tulip_softc_t * const sc) +{ + tulip_media_t maybe_media = TULIP_MEDIA_UNKNOWN; + tulip_media_t last_media = TULIP_MEDIA_UNKNOWN; + tulip_media_t media; + + /* + * If one of the media blocks contained a default media flag, + * use that. + */ + for (media = TULIP_MEDIA_UNKNOWN; media < TULIP_MEDIA_MAX; media++) { + const tulip_media_info_t *mi; + /* + * Media is not supported (or is full-duplex). + */ + if ((mi = sc->tulip_mediums[media]) == NULL || TULIP_IS_MEDIA_FD(media)) + continue; + if (mi->mi_type != TULIP_MEDIAINFO_GPR) + continue; + + /* + * Remember the media is this is the "default" media. + */ + if (mi->mi_default && maybe_media == TULIP_MEDIA_UNKNOWN) + maybe_media = media; + + /* + * No activity mask? Can't see if it is active if there's no mask. + */ + if (mi->mi_actmask == 0) + continue; + + /* + * Does the activity data match? + */ + if ((TULIP_CSR_READ(sc, csr_gp) & mi->mi_actmask) != mi->mi_actdata) + continue; + +#if defined(TULIP_DEBUG) + printf("%s%d: gpr_media_sense: %s: 0x%02x & 0x%02x == 0x%02x\n", + sc->tulip_name, sc->tulip_unit, tulip_mediums[media], + TULIP_CSR_READ(sc, csr_gp) & 0xFF, + mi->mi_actmask, mi->mi_actdata); +#endif + /* + * It does! If this is the first media we detected, then + * remember this media. If isn't the first, then there were + * multiple matches which we equate to no match (since we don't + * which to select (if any). + */ + if (last_media == TULIP_MEDIA_UNKNOWN) { + last_media = media; + } else if (last_media != media) { + last_media = TULIP_MEDIA_UNKNOWN; + } + } + return (last_media != TULIP_MEDIA_UNKNOWN) ? last_media : maybe_media; +} +#endif /* TULIP_DO_GPR_SENSE */ + +static tulip_link_status_t +tulip_media_link_monitor( + tulip_softc_t * const sc) +{ + const tulip_media_info_t * const mi = sc->tulip_mediums[sc->tulip_media]; + tulip_link_status_t linkup = TULIP_LINK_DOWN; + + if (mi == NULL) { +#if defined(DIAGNOSTIC) || defined(TULIP_DEBUG) + panic("tulip_media_link_monitor: %s: botch at line %d\n", + tulip_mediums[sc->tulip_media],__LINE__); +#else + return TULIP_LINK_UNKNOWN; +#endif + } + + + /* + * Have we seen some packets? If so, the link must be good. + */ + if ((sc->tulip_flags & (TULIP_RXACT|TULIP_LINKUP)) == (TULIP_RXACT|TULIP_LINKUP)) { + sc->tulip_flags &= ~TULIP_RXACT; + sc->tulip_probe_timeout = 3000; + return TULIP_LINK_UP; + } + + sc->tulip_flags &= ~TULIP_RXACT; + if (mi->mi_type == TULIP_MEDIAINFO_MII) { + u_int32_t status; + /* + * Read the PHY status register. + */ + status = tulip_mii_readreg(sc, sc->tulip_phyaddr, PHYREG_STATUS); + if (status & PHYSTS_AUTONEG_DONE) { + /* + * If the PHY has completed autonegotiation, see the if the + * remote systems abilities have changed. If so, upgrade or + * downgrade as appropriate. + */ + u_int32_t abilities = tulip_mii_readreg(sc, sc->tulip_phyaddr, PHYREG_AUTONEG_ABILITIES); + abilities = (abilities << 6) & status; + if (abilities != sc->tulip_abilities) { +#if defined(TULIP_DEBUG) + loudprintf("%s%d(phy%d): autonegotiation changed: 0x%04x -> 0x%04x\n", + sc->tulip_name, sc->tulip_unit, sc->tulip_phyaddr, + sc->tulip_abilities, abilities); +#endif + if (tulip_mii_map_abilities(sc, abilities)) { + tulip_linkup(sc, sc->tulip_probe_media); + return TULIP_LINK_UP; + } + /* + * if we had selected media because of autonegotiation, + * we need to probe for the new media. + */ + sc->tulip_probe_state = TULIP_PROBE_INACTIVE; + if (sc->tulip_flags & TULIP_DIDNWAY) + return TULIP_LINK_DOWN; + } + } + /* + * The link is now up. If was down, say its back up. + */ + if ((status & (PHYSTS_LINK_UP|PHYSTS_REMOTE_FAULT)) == PHYSTS_LINK_UP) + linkup = TULIP_LINK_UP; + } else if (mi->mi_type == TULIP_MEDIAINFO_GPR) { + /* + * No activity sensor? Assume all's well. + */ + if (mi->mi_actmask == 0) + return TULIP_LINK_UNKNOWN; + /* + * Does the activity data match? + */ + if ((TULIP_CSR_READ(sc, csr_gp) & mi->mi_actmask) == mi->mi_actdata) + linkup = TULIP_LINK_UP; + } else if (mi->mi_type == TULIP_MEDIAINFO_SIA) { + /* + * Assume non TP ok for now. + */ + if (!TULIP_IS_MEDIA_TP(sc->tulip_media)) + return TULIP_LINK_UNKNOWN; + if ((TULIP_CSR_READ(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) == 0) + linkup = TULIP_LINK_UP; +#if defined(TULIP_DEBUG) + if (sc->tulip_probe_timeout <= 0) + printf("%s%d: sia status = 0x%08x\n", sc->tulip_name, + sc->tulip_unit, TULIP_CSR_READ(sc, csr_sia_status)); +#endif + } else if (mi->mi_type == TULIP_MEDIAINFO_SYM) { + return TULIP_LINK_UNKNOWN; + } + /* + * We will wait for 3 seconds until the link goes into suspect mode. + */ + if (sc->tulip_flags & TULIP_LINKUP) { + if (linkup == TULIP_LINK_UP) + sc->tulip_probe_timeout = 3000; + if (sc->tulip_probe_timeout > 0) + return TULIP_LINK_UP; + + sc->tulip_flags &= ~TULIP_LINKUP; + printf("%s%d: link down: cable problem?\n", sc->tulip_name, sc->tulip_unit); + } +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_link_downed++; +#endif + return TULIP_LINK_DOWN; +} + +static void +tulip_media_poll( + tulip_softc_t * const sc, + tulip_mediapoll_event_t event) +{ +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_events[event]++; +#endif + if (sc->tulip_probe_state == TULIP_PROBE_INACTIVE + && event == TULIP_MEDIAPOLL_TIMER) { + switch (tulip_media_link_monitor(sc)) { + case TULIP_LINK_DOWN: { + /* + * Link Monitor failed. Probe for new media. + */ + event = TULIP_MEDIAPOLL_LINKFAIL; + break; + } + case TULIP_LINK_UP: { + /* + * Check again soon. + */ + tulip_timeout(sc); + return; + } + case TULIP_LINK_UNKNOWN: { + /* + * We can't tell so don't bother. + */ + return; + } + } + } + + if (event == TULIP_MEDIAPOLL_LINKFAIL) { + if (sc->tulip_probe_state == TULIP_PROBE_INACTIVE) { + if (TULIP_DO_AUTOSENSE(sc)) { +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_link_failures++; +#endif + sc->tulip_media = TULIP_MEDIA_UNKNOWN; + if (sc->tulip_if.if_flags & IFF_UP) + tulip_reset(sc); /* restart probe */ + } + return; + } +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_link_pollintrs++; +#endif + } + + if (event == TULIP_MEDIAPOLL_START) { + sc->tulip_if.if_flags |= IFF_OACTIVE; + if (sc->tulip_probe_state != TULIP_PROBE_INACTIVE) + return; + sc->tulip_probe_mediamask = 0; + sc->tulip_probe_passes = 0; +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_media_probes++; +#endif + /* + * If the SROM contained an explicit media to use, use it. + */ + sc->tulip_cmdmode &= ~(TULIP_CMD_RXRUN|TULIP_CMD_FULLDUPLEX); + sc->tulip_flags |= TULIP_TRYNWAY|TULIP_PROBE1STPASS; + sc->tulip_flags &= ~(TULIP_DIDNWAY|TULIP_PRINTMEDIA|TULIP_PRINTLINKUP); + /* + * connidx is defaulted to a media_unknown type. + */ + sc->tulip_probe_media = tulip_srom_conninfo[sc->tulip_connidx].sc_media; + if (sc->tulip_probe_media != TULIP_MEDIA_UNKNOWN) { + tulip_linkup(sc, sc->tulip_probe_media); + tulip_timeout(sc); + return; + } + + if (sc->tulip_features & TULIP_HAVE_GPR) { + sc->tulip_probe_state = TULIP_PROBE_GPRTEST; + sc->tulip_probe_timeout = 2000; + } else { + sc->tulip_probe_media = TULIP_MEDIA_MAX; + sc->tulip_probe_timeout = 0; + sc->tulip_probe_state = TULIP_PROBE_MEDIATEST; + } + } + + /* + * Ignore txprobe failures or spurious callbacks. + */ + if (event == TULIP_MEDIAPOLL_TXPROBE_FAILED + && sc->tulip_probe_state != TULIP_PROBE_MEDIATEST) { + sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE; + return; + } + + /* + * If we really transmitted a packet, then that's the media we'll use. + */ + if (event == TULIP_MEDIAPOLL_TXPROBE_OK || event == TULIP_MEDIAPOLL_LINKPASS) { + if (event == TULIP_MEDIAPOLL_LINKPASS) { + /* XXX Check media status just to be sure */ + sc->tulip_probe_media = TULIP_MEDIA_10BASET; +#if defined(TULIP_DEBUG) + } else { + sc->tulip_dbg.dbg_txprobes_ok[sc->tulip_probe_media]++; +#endif + } + tulip_linkup(sc, sc->tulip_probe_media); + tulip_timeout(sc); + return; + } + + if (sc->tulip_probe_state == TULIP_PROBE_GPRTEST) { +#if defined(TULIP_DO_GPR_SENSE) + /* + * Check for media via the general purpose register. + * + * Try to sense the media via the GPR. If the same value + * occurs 3 times in a row then just use that. + */ + if (sc->tulip_probe_timeout > 0) { + tulip_media_t new_probe_media = tulip_21140_gpr_media_sense(sc); +#if defined(TULIP_DEBUG) + printf("%s%d: media_poll: gpr sensing = %s\n", + sc->tulip_name, sc->tulip_unit, tulip_mediums[new_probe_media]); +#endif + if (new_probe_media != TULIP_MEDIA_UNKNOWN) { + if (new_probe_media == sc->tulip_probe_media) { + if (--sc->tulip_probe_count == 0) + tulip_linkup(sc, sc->tulip_probe_media); + } else { + sc->tulip_probe_count = 10; + } + } + sc->tulip_probe_media = new_probe_media; + tulip_timeout(sc); + return; + } +#endif /* TULIP_DO_GPR_SENSE */ + /* + * Brute force. We cycle through each of the media types + * and try to transmit a packet. + */ + sc->tulip_probe_state = TULIP_PROBE_MEDIATEST; + sc->tulip_probe_media = TULIP_MEDIA_MAX; + sc->tulip_probe_timeout = 0; + tulip_timeout(sc); + return; + } + + if (sc->tulip_probe_state != TULIP_PROBE_MEDIATEST + && (sc->tulip_features & TULIP_HAVE_MII)) { + tulip_media_t old_media = sc->tulip_probe_media; + tulip_mii_autonegotiate(sc, sc->tulip_phyaddr); + switch (sc->tulip_probe_state) { + case TULIP_PROBE_FAILED: + case TULIP_PROBE_MEDIATEST: { + /* + * Try the next media. + */ + sc->tulip_probe_mediamask |= sc->tulip_mediums[sc->tulip_probe_media]->mi_mediamask; + sc->tulip_probe_timeout = 0; +#ifdef notyet + if (sc->tulip_probe_state == TULIP_PROBE_FAILED) + break; + if (sc->tulip_probe_media != tulip_mii_phy_readspecific(sc)) + break; + sc->tulip_probe_timeout = TULIP_IS_MEDIA_TP(sc->tulip_probe_media) ? 2500 : 300; +#endif + break; + } + case TULIP_PROBE_PHYAUTONEG: { + return; + } + case TULIP_PROBE_INACTIVE: { + /* + * Only probe if we autonegotiated a media that hasn't failed. + */ + sc->tulip_probe_timeout = 0; + if (sc->tulip_probe_mediamask & TULIP_BIT(sc->tulip_probe_media)) { + sc->tulip_probe_media = old_media; + break; + } + tulip_linkup(sc, sc->tulip_probe_media); + tulip_timeout(sc); + return; + } + default: { +#if defined(DIAGNOSTIC) || defined(TULIP_DEBUG) + panic("tulip_media_poll: botch at line %d\n", __LINE__); +#endif + break; + } + } + } + + if (event == TULIP_MEDIAPOLL_TXPROBE_FAILED) { +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_txprobes_failed[sc->tulip_probe_media]++; +#endif + sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE; + return; + } + + /* + * switch to another media if we tried this one enough. + */ + if (/* event == TULIP_MEDIAPOLL_TXPROBE_FAILED || */ sc->tulip_probe_timeout <= 0) { +#if defined(TULIP_DEBUG) + if (sc->tulip_probe_media == TULIP_MEDIA_UNKNOWN) { + printf("%s%d: poll media unknown!\n", + sc->tulip_name, sc->tulip_unit); + sc->tulip_probe_media = TULIP_MEDIA_MAX; + } +#endif + /* + * Find the next media type to check for. Full Duplex + * types are not allowed. + */ + do { + sc->tulip_probe_media -= 1; + if (sc->tulip_probe_media == TULIP_MEDIA_UNKNOWN) { + if (++sc->tulip_probe_passes == 3) { + printf("%s%d: autosense failed: cable problem?\n", + sc->tulip_name, sc->tulip_unit); + if ((sc->tulip_if.if_flags & IFF_UP) == 0) { + sc->tulip_if.if_flags &= ~IFF_RUNNING; + sc->tulip_probe_state = TULIP_PROBE_INACTIVE; + return; + } + } + sc->tulip_flags ^= TULIP_TRYNWAY; /* XXX */ + sc->tulip_probe_mediamask = 0; + sc->tulip_probe_media = TULIP_MEDIA_MAX - 1; + } + } while (sc->tulip_mediums[sc->tulip_probe_media] == NULL + || (sc->tulip_probe_mediamask & TULIP_BIT(sc->tulip_probe_media)) + || TULIP_IS_MEDIA_FD(sc->tulip_probe_media)); + +#if defined(TULIP_DEBUG) + printf("%s%d: %s: probing %s\n", sc->tulip_name, sc->tulip_unit, + event == TULIP_MEDIAPOLL_TXPROBE_FAILED ? "txprobe failed" : "timeout", + tulip_mediums[sc->tulip_probe_media]); +#endif + sc->tulip_probe_timeout = TULIP_IS_MEDIA_TP(sc->tulip_probe_media) ? 2500 : 1000; + sc->tulip_probe_state = TULIP_PROBE_MEDIATEST; + sc->tulip_probe.probe_txprobes = 0; + tulip_reset(sc); + tulip_media_set(sc, sc->tulip_probe_media); + sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE; + } + tulip_timeout(sc); + + /* + * If this is hanging off a phy, we know are doing NWAY and we have + * forced the phy to a specific speed. Wait for link up before + * before sending a packet. + */ + switch (sc->tulip_mediums[sc->tulip_probe_media]->mi_type) { + case TULIP_MEDIAINFO_MII: { + if (sc->tulip_probe_media != tulip_mii_phy_readspecific(sc)) + return; + break; + } + case TULIP_MEDIAINFO_SIA: { + if (TULIP_IS_MEDIA_TP(sc->tulip_probe_media)) { + if (TULIP_CSR_READ(sc, csr_sia_status) & TULIP_SIASTS_LINKFAIL) + return; + tulip_linkup(sc, sc->tulip_probe_media); +#ifdef notyet + if (sc->tulip_features & TULIP_HAVE_MII) + tulip_timeout(sc); +#endif + return; + } + break; + } + case TULIP_MEDIAINFO_RESET: + case TULIP_MEDIAINFO_SYM: + case TULIP_MEDIAINFO_NONE: + case TULIP_MEDIAINFO_GPR: { + break; + } + } + /* + * Try to send a packet. + */ + tulip_txprobe(sc); +} + +static void +tulip_media_select( + tulip_softc_t * const sc) +{ + if (sc->tulip_features & TULIP_HAVE_GPR) { + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_PINSET|sc->tulip_gpinit); + DELAY(10); + TULIP_CSR_WRITE(sc, csr_gp, sc->tulip_gpdata); + } + /* + * If this board has no media, just return + */ + if (sc->tulip_features & TULIP_HAVE_NOMEDIA) + return; + + if (sc->tulip_media == TULIP_MEDIA_UNKNOWN) { + TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask); + (*sc->tulip_boardsw->bd_media_poll)(sc, TULIP_MEDIAPOLL_START); + } else { + tulip_media_set(sc, sc->tulip_media); + } +} + +static void +tulip_21040_mediainfo_init( + tulip_softc_t * const sc, + tulip_media_t media) +{ + sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_THRSHLD160 + |TULIP_CMD_BACKOFFCTR; + sc->tulip_if.if_baudrate = 10000000; + + if (media == TULIP_MEDIA_10BASET || media == TULIP_MEDIA_UNKNOWN) { + TULIP_MEDIAINFO_SIA_INIT(sc, &sc->tulip_mediainfo[0], 21040, 10BASET); + TULIP_MEDIAINFO_SIA_INIT(sc, &sc->tulip_mediainfo[1], 21040, 10BASET_FD); + sc->tulip_intrmask |= TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL; + } + + if (media == TULIP_MEDIA_AUIBNC || media == TULIP_MEDIA_UNKNOWN) { + TULIP_MEDIAINFO_SIA_INIT(sc, &sc->tulip_mediainfo[2], 21040, AUIBNC); + } + + if (media == TULIP_MEDIA_UNKNOWN) { + TULIP_MEDIAINFO_SIA_INIT(sc, &sc->tulip_mediainfo[3], 21040, EXTSIA); + } +} + +static void +tulip_21040_media_probe( + tulip_softc_t * const sc) +{ + tulip_21040_mediainfo_init(sc, TULIP_MEDIA_UNKNOWN); + return; +} + +static void +tulip_21040_10baset_only_media_probe( + tulip_softc_t * const sc) +{ + tulip_21040_mediainfo_init(sc, TULIP_MEDIA_10BASET); + tulip_media_set(sc, TULIP_MEDIA_10BASET); + sc->tulip_media = TULIP_MEDIA_10BASET; +} + +static void +tulip_21040_10baset_only_media_select( + tulip_softc_t * const sc) +{ + sc->tulip_flags |= TULIP_LINKUP; + if (sc->tulip_media == TULIP_MEDIA_10BASET_FD) { + sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX; + sc->tulip_flags &= ~TULIP_SQETEST; + } else { + sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX; + sc->tulip_flags |= TULIP_SQETEST; + } + tulip_media_set(sc, sc->tulip_media); +} + +static void +tulip_21040_auibnc_only_media_probe( + tulip_softc_t * const sc) +{ + tulip_21040_mediainfo_init(sc, TULIP_MEDIA_AUIBNC); + sc->tulip_flags |= TULIP_SQETEST|TULIP_LINKUP; + tulip_media_set(sc, TULIP_MEDIA_AUIBNC); + sc->tulip_media = TULIP_MEDIA_AUIBNC; +} + +static void +tulip_21040_auibnc_only_media_select( + tulip_softc_t * const sc) +{ + tulip_media_set(sc, TULIP_MEDIA_AUIBNC); + sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX; +} + +static const tulip_boardsw_t tulip_21040_boardsw = { + TULIP_21040_GENERIC, + tulip_21040_media_probe, + tulip_media_select, + tulip_media_poll, +}; + +static const tulip_boardsw_t tulip_21040_10baset_only_boardsw = { + TULIP_21040_GENERIC, + tulip_21040_10baset_only_media_probe, + tulip_21040_10baset_only_media_select, + NULL, +}; + +static const tulip_boardsw_t tulip_21040_auibnc_only_boardsw = { + TULIP_21040_GENERIC, + tulip_21040_auibnc_only_media_probe, + tulip_21040_auibnc_only_media_select, + NULL, +}; + +static void +tulip_21041_mediainfo_init( + tulip_softc_t * const sc) +{ + tulip_media_info_t * const mi = sc->tulip_mediainfo; + +#ifdef notyet + if (sc->tulip_revinfo >= 0x20) { + TULIP_MEDIAINFO_SIA_INIT(sc, &mi[0], 21041P2, 10BASET); + TULIP_MEDIAINFO_SIA_INIT(sc, &mi[1], 21041P2, 10BASET_FD); + TULIP_MEDIAINFO_SIA_INIT(sc, &mi[0], 21041P2, AUI); + TULIP_MEDIAINFO_SIA_INIT(sc, &mi[1], 21041P2, BNC); + return; + } +#endif + TULIP_MEDIAINFO_SIA_INIT(sc, &mi[0], 21041, 10BASET); + TULIP_MEDIAINFO_SIA_INIT(sc, &mi[1], 21041, 10BASET_FD); + TULIP_MEDIAINFO_SIA_INIT(sc, &mi[2], 21041, AUI); + TULIP_MEDIAINFO_SIA_INIT(sc, &mi[3], 21041, BNC); +} + +static void +tulip_21041_media_probe( + tulip_softc_t * const sc) +{ + sc->tulip_if.if_baudrate = 10000000; + sc->tulip_cmdmode |= TULIP_CMD_CAPTREFFCT|TULIP_CMD_ENHCAPTEFFCT + |TULIP_CMD_THRSHLD160|TULIP_CMD_BACKOFFCTR; + sc->tulip_intrmask |= TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL; + tulip_21041_mediainfo_init(sc); +} + +static void +tulip_21041_media_poll( + tulip_softc_t * const sc, + const tulip_mediapoll_event_t event) +{ + u_int32_t sia_status; + +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_events[event]++; +#endif + + if (event == TULIP_MEDIAPOLL_LINKFAIL) { + if (sc->tulip_probe_state != TULIP_PROBE_INACTIVE + || !TULIP_DO_AUTOSENSE(sc)) + return; + sc->tulip_media = TULIP_MEDIA_UNKNOWN; + tulip_reset(sc); /* start probe */ + return; + } + + /* + * If we've been been asked to start a poll or link change interrupt + * restart the probe (and reset the tulip to a known state). + */ + if (event == TULIP_MEDIAPOLL_START) { + sc->tulip_if.if_flags |= IFF_OACTIVE; + sc->tulip_cmdmode &= ~(TULIP_CMD_FULLDUPLEX|TULIP_CMD_RXRUN); +#ifdef notyet + if (sc->tulip_revinfo >= 0x20) { + sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX; + sc->tulip_flags |= TULIP_DIDNWAY; + } +#endif + TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode); + sc->tulip_probe_state = TULIP_PROBE_MEDIATEST; + sc->tulip_probe_media = TULIP_MEDIA_10BASET; + sc->tulip_probe_timeout = TULIP_21041_PROBE_10BASET_TIMEOUT; + tulip_media_set(sc, TULIP_MEDIA_10BASET); + tulip_timeout(sc); + return; + } + + if (sc->tulip_probe_state == TULIP_PROBE_INACTIVE) + return; + + if (event == TULIP_MEDIAPOLL_TXPROBE_OK) { +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_txprobes_ok[sc->tulip_probe_media]++; +#endif + tulip_linkup(sc, sc->tulip_probe_media); + return; + } + + sia_status = TULIP_CSR_READ(sc, csr_sia_status); + TULIP_CSR_WRITE(sc, csr_sia_status, sia_status); + if ((sia_status & TULIP_SIASTS_LINKFAIL) == 0) { + if (sc->tulip_revinfo >= 0x20) { + if (sia_status & (PHYSTS_10BASET_FD << (16 - 6))) + sc->tulip_probe_media = TULIP_MEDIA_10BASET_FD; + } + /* + * If the link has passed LinkPass, 10baseT is the + * proper media to use. + */ + tulip_linkup(sc, sc->tulip_probe_media); + return; + } + + /* + * wait for up to 2.4 seconds for the link to reach pass state. + * Only then start scanning the other media for activity. + * choose media with receive activity over those without. + */ + if (sc->tulip_probe_media == TULIP_MEDIA_10BASET) { + if (event != TULIP_MEDIAPOLL_TIMER) + return; + if (sc->tulip_probe_timeout > 0 + && (sia_status & TULIP_SIASTS_OTHERRXACTIVITY) == 0) { + tulip_timeout(sc); + return; + } + sc->tulip_probe_timeout = TULIP_21041_PROBE_AUIBNC_TIMEOUT; + sc->tulip_flags |= TULIP_WANTRXACT; + if (sia_status & TULIP_SIASTS_OTHERRXACTIVITY) { + sc->tulip_probe_media = TULIP_MEDIA_BNC; + } else { + sc->tulip_probe_media = TULIP_MEDIA_AUI; + } + tulip_media_set(sc, sc->tulip_probe_media); + tulip_timeout(sc); + return; + } + + /* + * If we failed, clear the txprobe active flag. + */ + if (event == TULIP_MEDIAPOLL_TXPROBE_FAILED) + sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE; + + + if (event == TULIP_MEDIAPOLL_TIMER) { + /* + * If we've received something, then that's our link! + */ + if (sc->tulip_flags & TULIP_RXACT) { + tulip_linkup(sc, sc->tulip_probe_media); + return; + } + /* + * if no txprobe active + */ + if ((sc->tulip_flags & TULIP_TXPROBE_ACTIVE) == 0 + && ((sc->tulip_flags & TULIP_WANTRXACT) == 0 + || (sia_status & TULIP_SIASTS_RXACTIVITY))) { + sc->tulip_probe_timeout = TULIP_21041_PROBE_AUIBNC_TIMEOUT; + tulip_txprobe(sc); + tulip_timeout(sc); + return; + } + /* + * Take 2 passes through before deciding to not + * wait for receive activity. Then take another + * two passes before spitting out a warning. + */ + if (sc->tulip_probe_timeout <= 0) { + if (sc->tulip_flags & TULIP_WANTRXACT) { + sc->tulip_flags &= ~TULIP_WANTRXACT; + sc->tulip_probe_timeout = TULIP_21041_PROBE_AUIBNC_TIMEOUT; + } else { + printf("%s%d: autosense failed: cable problem?\n", + sc->tulip_name, sc->tulip_unit); + if ((sc->tulip_if.if_flags & IFF_UP) == 0) { + sc->tulip_if.if_flags &= ~IFF_RUNNING; + sc->tulip_probe_state = TULIP_PROBE_INACTIVE; + return; + } + } + } + } + + /* + * Since this media failed to probe, try the other one. + */ + sc->tulip_probe_timeout = TULIP_21041_PROBE_AUIBNC_TIMEOUT; + if (sc->tulip_probe_media == TULIP_MEDIA_AUI) { + sc->tulip_probe_media = TULIP_MEDIA_BNC; + } else { + sc->tulip_probe_media = TULIP_MEDIA_AUI; + } + tulip_media_set(sc, sc->tulip_probe_media); + sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE; + tulip_timeout(sc); +} + +static const tulip_boardsw_t tulip_21041_boardsw = { + TULIP_21041_GENERIC, + tulip_21041_media_probe, + tulip_media_select, + tulip_21041_media_poll +}; + +static const tulip_phy_attr_t tulip_mii_phy_attrlist[] = { + { 0x20005c00, 0, /* 08-00-17 */ + { + { 0x19, 0x0040, 0x0040 }, /* 10TX */ + { 0x19, 0x0040, 0x0000 }, /* 100TX */ + }, +#if defined(TULIP_DEBUG) + "NS DP83840", +#endif + }, + { 0x0281F400, 0, /* 00-A0-7D */ + { + { 0x12, 0x0010, 0x0000 }, /* 10T */ + { }, /* 100TX */ + { 0x12, 0x0010, 0x0010 }, /* 100T4 */ + { 0x12, 0x0008, 0x0008 }, /* FULL_DUPLEX */ + }, +#if defined(TULIP_DEBUG) + "Seeq 80C240" +#endif + }, +#if 0 + { 0x0015F420, 0, /* 00-A0-7D */ + { + { 0x12, 0x0010, 0x0000 }, /* 10T */ + { }, /* 100TX */ + { 0x12, 0x0010, 0x0010 }, /* 100T4 */ + { 0x12, 0x0008, 0x0008 }, /* FULL_DUPLEX */ + }, +#if defined(TULIP_DEBUG) + "Broadcom BCM5000" +#endif + }, +#endif + { 0x0281F400, 0, /* 00-A0-BE */ + { + { 0x11, 0x8000, 0x0000 }, /* 10T */ + { 0x11, 0x8000, 0x8000 }, /* 100TX */ + { }, /* 100T4 */ + { 0x11, 0x4000, 0x4000 }, /* FULL_DUPLEX */ + }, +#if defined(TULIP_DEBUG) + "ICS 1890" +#endif + }, + { 0 } +}; + +static tulip_media_t +tulip_mii_phy_readspecific( + tulip_softc_t * const sc) +{ + const tulip_phy_attr_t *attr; + u_int16_t data; + u_int32_t id; + unsigned idx = 0; + static const tulip_media_t table[] = { + TULIP_MEDIA_UNKNOWN, + TULIP_MEDIA_10BASET, + TULIP_MEDIA_100BASETX, + TULIP_MEDIA_100BASET4, + TULIP_MEDIA_UNKNOWN, + TULIP_MEDIA_10BASET_FD, + TULIP_MEDIA_100BASETX_FD, + TULIP_MEDIA_UNKNOWN + }; + + /* + * Don't read phy specific registers if link is not up. + */ + data = tulip_mii_readreg(sc, sc->tulip_phyaddr, PHYREG_STATUS); + if ((data & (PHYSTS_LINK_UP|PHYSTS_EXTENDED_REGS)) != (PHYSTS_LINK_UP|PHYSTS_EXTENDED_REGS)) + return TULIP_MEDIA_UNKNOWN; + + id = (tulip_mii_readreg(sc, sc->tulip_phyaddr, PHYREG_IDLOW) << 16) | + tulip_mii_readreg(sc, sc->tulip_phyaddr, PHYREG_IDHIGH); + for (attr = tulip_mii_phy_attrlist;; attr++) { + if (attr->attr_id == 0) + return TULIP_MEDIA_UNKNOWN; + if ((id & ~0x0F) == attr->attr_id) + break; + } + + if (attr->attr_modes[PHY_MODE_100TX].pm_regno) { + const tulip_phy_modedata_t * const pm = &attr->attr_modes[PHY_MODE_100TX]; + data = tulip_mii_readreg(sc, sc->tulip_phyaddr, pm->pm_regno); + if ((data & pm->pm_mask) == pm->pm_value) + idx = 2; + } + if (idx == 0 && attr->attr_modes[PHY_MODE_100T4].pm_regno) { + const tulip_phy_modedata_t * const pm = &attr->attr_modes[PHY_MODE_100T4]; + data = tulip_mii_readreg(sc, sc->tulip_phyaddr, pm->pm_regno); + if ((data & pm->pm_mask) == pm->pm_value) + idx = 3; + } + if (idx == 0 && attr->attr_modes[PHY_MODE_10T].pm_regno) { + const tulip_phy_modedata_t * const pm = &attr->attr_modes[PHY_MODE_10T]; + data = tulip_mii_readreg(sc, sc->tulip_phyaddr, pm->pm_regno); + if ((data & pm->pm_mask) == pm->pm_value) + idx = 1; + } + if (idx != 0 && attr->attr_modes[PHY_MODE_FULLDUPLEX].pm_regno) { + const tulip_phy_modedata_t * const pm = &attr->attr_modes[PHY_MODE_FULLDUPLEX]; + data = tulip_mii_readreg(sc, sc->tulip_phyaddr, pm->pm_regno); + idx += ((data & pm->pm_mask) == pm->pm_value ? 4 : 0); + } + return table[idx]; +} + +static unsigned +tulip_mii_get_phyaddr( + tulip_softc_t * const sc, + unsigned offset) +{ + unsigned phyaddr; + + for (phyaddr = 1; phyaddr < 32; phyaddr++) { + unsigned status = tulip_mii_readreg(sc, phyaddr, PHYREG_STATUS); + if (status == 0 || status == 0xFFFF || status < PHYSTS_10BASET) + continue; + if (offset == 0) + return phyaddr; + offset--; + } + if (offset == 0) { + unsigned status = tulip_mii_readreg(sc, 0, PHYREG_STATUS); + if (status == 0 || status == 0xFFFF || status < PHYSTS_10BASET) + return TULIP_MII_NOPHY; + return 0; + } + return TULIP_MII_NOPHY; +} + +static int +tulip_mii_map_abilities( + tulip_softc_t * const sc, + unsigned abilities) +{ + sc->tulip_abilities = abilities; + if (abilities & PHYSTS_100BASETX_FD) { + sc->tulip_probe_media = TULIP_MEDIA_100BASETX_FD; + } else if (abilities & PHYSTS_100BASET4) { + sc->tulip_probe_media = TULIP_MEDIA_100BASET4; + } else if (abilities & PHYSTS_100BASETX) { + sc->tulip_probe_media = TULIP_MEDIA_100BASETX; + } else if (abilities & PHYSTS_10BASET_FD) { + sc->tulip_probe_media = TULIP_MEDIA_10BASET_FD; + } else if (abilities & PHYSTS_10BASET) { + sc->tulip_probe_media = TULIP_MEDIA_10BASET; + } else { + sc->tulip_probe_state = TULIP_PROBE_MEDIATEST; + return 0; + } + sc->tulip_probe_state = TULIP_PROBE_INACTIVE; + return 1; +} + +static void +tulip_mii_autonegotiate( + tulip_softc_t * const sc, + const unsigned phyaddr) +{ + switch (sc->tulip_probe_state) { + case TULIP_PROBE_MEDIATEST: + case TULIP_PROBE_INACTIVE: { + sc->tulip_flags |= TULIP_DIDNWAY; + tulip_mii_writereg(sc, phyaddr, PHYREG_CONTROL, PHYCTL_RESET); + sc->tulip_probe_timeout = 3000; + sc->tulip_intrmask |= TULIP_STS_ABNRMLINTR|TULIP_STS_NORMALINTR; + sc->tulip_probe_state = TULIP_PROBE_PHYRESET; + } + /* FALLTHROUGH */ + case TULIP_PROBE_PHYRESET: { + u_int32_t status; + u_int32_t data = tulip_mii_readreg(sc, phyaddr, PHYREG_CONTROL); + if (data & PHYCTL_RESET) { + if (sc->tulip_probe_timeout > 0) { + tulip_timeout(sc); + return; + } + printf("%s%d(phy%d): error: reset of PHY never completed!\n", + sc->tulip_name, sc->tulip_unit, phyaddr); + sc->tulip_flags &= ~TULIP_TXPROBE_ACTIVE; + sc->tulip_probe_state = TULIP_PROBE_FAILED; + sc->tulip_if.if_flags &= ~(IFF_UP|IFF_RUNNING); + return; + } + status = tulip_mii_readreg(sc, phyaddr, PHYREG_STATUS); + if ((status & PHYSTS_CAN_AUTONEG) == 0) { +#if defined(TULIP_DEBUG) + loudprintf("%s%d(phy%d): autonegotiation disabled\n", + sc->tulip_name, sc->tulip_unit, phyaddr); +#endif + sc->tulip_flags &= ~TULIP_DIDNWAY; + sc->tulip_probe_state = TULIP_PROBE_MEDIATEST; + return; + } + if (tulip_mii_readreg(sc, phyaddr, PHYREG_AUTONEG_ADVERTISEMENT) != ((status >> 6) | 0x01)) + tulip_mii_writereg(sc, phyaddr, PHYREG_AUTONEG_ADVERTISEMENT, (status >> 6) | 0x01); + tulip_mii_writereg(sc, phyaddr, PHYREG_CONTROL, data|PHYCTL_AUTONEG_RESTART|PHYCTL_AUTONEG_ENABLE); + data = tulip_mii_readreg(sc, phyaddr, PHYREG_CONTROL); +#if defined(TULIP_DEBUG) + if ((data & PHYCTL_AUTONEG_ENABLE) == 0) + loudprintf("%s%d(phy%d): oops: enable autonegotiation failed: 0x%04x\n", + sc->tulip_name, sc->tulip_unit, phyaddr, data); + else + loudprintf("%s%d(phy%d): autonegotiation restarted: 0x%04x\n", + sc->tulip_name, sc->tulip_unit, phyaddr, data); + sc->tulip_dbg.dbg_nway_starts++; +#endif + sc->tulip_probe_state = TULIP_PROBE_PHYAUTONEG; + sc->tulip_probe_timeout = 3000; + } + /* FALLTHROUGH */ + case TULIP_PROBE_PHYAUTONEG: { + u_int32_t status = tulip_mii_readreg(sc, phyaddr, PHYREG_STATUS); + u_int32_t data; + if ((status & PHYSTS_AUTONEG_DONE) == 0) { + if (sc->tulip_probe_timeout > 0) { + tulip_timeout(sc); + return; + } +#if defined(TULIP_DEBUG) + loudprintf("%s%d(phy%d): autonegotiation timeout: sts=0x%04x, ctl=0x%04x\n", + sc->tulip_name, sc->tulip_unit, phyaddr, status, + tulip_mii_readreg(sc, phyaddr, PHYREG_CONTROL)); +#endif + sc->tulip_flags &= ~TULIP_DIDNWAY; + sc->tulip_probe_state = TULIP_PROBE_MEDIATEST; + return; + } + data = tulip_mii_readreg(sc, phyaddr, PHYREG_AUTONEG_ABILITIES); +#if defined(TULIP_DEBUG) + loudprintf("%s%d(phy%d): autonegotiation complete: 0x%04x\n", + sc->tulip_name, sc->tulip_unit, phyaddr, data); +#endif + data = (data << 6) & status; + if (!tulip_mii_map_abilities(sc, data)) + sc->tulip_flags &= ~TULIP_DIDNWAY; + return; + } + default: { +#if defined(DIAGNOSTIC) + panic("tulip_media_poll: botch at line %d\n", __LINE__); +#endif + break; + } + } +#if defined(TULIP_DEBUG) + loudprintf("%s%d(phy%d): autonegotiation failure: state = %d\n", + sc->tulip_name, sc->tulip_unit, phyaddr, sc->tulip_probe_state); + sc->tulip_dbg.dbg_nway_failures++; +#endif +} + +static void +tulip_2114x_media_preset( + tulip_softc_t * const sc) +{ + const tulip_media_info_t *mi = NULL; + tulip_media_t media = sc->tulip_media; + + if (sc->tulip_probe_state == TULIP_PROBE_INACTIVE) + media = sc->tulip_media; + else + media = sc->tulip_probe_media; + + sc->tulip_cmdmode &= ~TULIP_CMD_PORTSELECT; + sc->tulip_flags &= ~TULIP_SQETEST; + if (media != TULIP_MEDIA_UNKNOWN && media != TULIP_MEDIA_MAX) { +#if defined(TULIP_DEBUG) + if (media < TULIP_MEDIA_MAX && sc->tulip_mediums[media] != NULL) { +#endif + mi = sc->tulip_mediums[media]; + if (mi->mi_type == TULIP_MEDIAINFO_MII) { + sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT; + } else if (mi->mi_type == TULIP_MEDIAINFO_GPR + || mi->mi_type == TULIP_MEDIAINFO_SYM) { + sc->tulip_cmdmode &= ~TULIP_GPR_CMDBITS; + sc->tulip_cmdmode |= mi->mi_cmdmode; + } else if (mi->mi_type == TULIP_MEDIAINFO_SIA) { + TULIP_CSR_WRITE(sc, csr_sia_connectivity, TULIP_SIACONN_RESET); + } +#if defined(TULIP_DEBUG) + } else { + printf("%s%d: preset: bad media %d!\n", + sc->tulip_name, sc->tulip_unit, media); + } +#endif + } + switch (media) { + case TULIP_MEDIA_BNC: + case TULIP_MEDIA_AUI: + case TULIP_MEDIA_10BASET: { + sc->tulip_cmdmode &= ~TULIP_CMD_FULLDUPLEX; + sc->tulip_cmdmode |= TULIP_CMD_TXTHRSHLDCTL; + sc->tulip_if.if_baudrate = 10000000; + sc->tulip_flags |= TULIP_SQETEST; + break; + } + case TULIP_MEDIA_10BASET_FD: { + sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX|TULIP_CMD_TXTHRSHLDCTL; + sc->tulip_if.if_baudrate = 10000000; + break; + } + case TULIP_MEDIA_100BASEFX: + case TULIP_MEDIA_100BASET4: + case TULIP_MEDIA_100BASETX: { + sc->tulip_cmdmode &= ~(TULIP_CMD_FULLDUPLEX|TULIP_CMD_TXTHRSHLDCTL); + sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT; + sc->tulip_if.if_baudrate = 100000000; + break; + } + case TULIP_MEDIA_100BASEFX_FD: + case TULIP_MEDIA_100BASETX_FD: { + sc->tulip_cmdmode |= TULIP_CMD_FULLDUPLEX|TULIP_CMD_PORTSELECT; + sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL; + sc->tulip_if.if_baudrate = 100000000; + break; + } + default: { + break; + } + } + TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode); +} + +/* + ******************************************************************** + * Start of 21140/21140A support which does not use the MII interface + */ + +static void +tulip_null_media_poll( + tulip_softc_t * const sc, + tulip_mediapoll_event_t event) +{ +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_events[event]++; +#endif +#if defined(DIAGNOSTIC) + printf("%s%d: botch(media_poll) at line %d\n", + sc->tulip_name, sc->tulip_unit, __LINE__); +#endif +} + +__inline__ static void +tulip_21140_mediainit( + tulip_softc_t * const sc, + tulip_media_info_t * const mip, + tulip_media_t const media, + unsigned gpdata, + unsigned cmdmode) +{ + sc->tulip_mediums[media] = mip; + mip->mi_type = TULIP_MEDIAINFO_GPR; + mip->mi_cmdmode = cmdmode; + mip->mi_gpdata = gpdata; +} + +static void +tulip_21140_evalboard_media_probe( + tulip_softc_t * const sc) +{ + tulip_media_info_t *mip = sc->tulip_mediainfo; + + sc->tulip_gpinit = TULIP_GP_EB_PINS; + sc->tulip_gpdata = TULIP_GP_EB_INIT; + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EB_PINS); + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EB_INIT); + TULIP_CSR_WRITE(sc, csr_command, + TULIP_CSR_READ(sc, csr_command) | TULIP_CMD_PORTSELECT | + TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE); + TULIP_CSR_WRITE(sc, csr_command, + TULIP_CSR_READ(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL); + DELAY(1000000); + if ((TULIP_CSR_READ(sc, csr_gp) & TULIP_GP_EB_OK100) != 0) { + sc->tulip_media = TULIP_MEDIA_10BASET; + } else { + sc->tulip_media = TULIP_MEDIA_100BASETX; + } + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_10BASET, + TULIP_GP_EB_INIT, + TULIP_CMD_TXTHRSHLDCTL); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_10BASET_FD, + TULIP_GP_EB_INIT, + TULIP_CMD_TXTHRSHLDCTL|TULIP_CMD_FULLDUPLEX); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASETX, + TULIP_GP_EB_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_SCRAMBLER); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASETX_FD, + TULIP_GP_EB_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_SCRAMBLER|TULIP_CMD_FULLDUPLEX); +} + +static const tulip_boardsw_t tulip_21140_eb_boardsw = { + TULIP_21140_DEC_EB, + tulip_21140_evalboard_media_probe, + tulip_media_select, + tulip_null_media_poll, + tulip_2114x_media_preset, +}; + +static void +tulip_21140_accton_media_probe( + tulip_softc_t * const sc) +{ + tulip_media_info_t *mip = sc->tulip_mediainfo; + unsigned gpdata; + + sc->tulip_gpinit = TULIP_GP_EB_PINS; + sc->tulip_gpdata = TULIP_GP_EB_INIT; + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EB_PINS); + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EB_INIT); + TULIP_CSR_WRITE(sc, csr_command, + TULIP_CSR_READ(sc, csr_command) | TULIP_CMD_PORTSELECT | + TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE); + TULIP_CSR_WRITE(sc, csr_command, + TULIP_CSR_READ(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL); + DELAY(1000000); + gpdata = TULIP_CSR_READ(sc, csr_gp); + if ((gpdata & TULIP_GP_EN1207_UTP_INIT) == 0) { + sc->tulip_media = TULIP_MEDIA_10BASET; + } else { + if ((gpdata & TULIP_GP_EN1207_BNC_INIT) == 0) { + sc->tulip_media = TULIP_MEDIA_BNC; + } else { + sc->tulip_media = TULIP_MEDIA_100BASETX; + } + } + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_BNC, + TULIP_GP_EN1207_BNC_INIT, + TULIP_CMD_TXTHRSHLDCTL); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_10BASET, + TULIP_GP_EN1207_UTP_INIT, + TULIP_CMD_TXTHRSHLDCTL); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_10BASET_FD, + TULIP_GP_EN1207_UTP_INIT, + TULIP_CMD_TXTHRSHLDCTL|TULIP_CMD_FULLDUPLEX); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASETX, + TULIP_GP_EN1207_100_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_SCRAMBLER); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASETX_FD, + TULIP_GP_EN1207_100_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_SCRAMBLER|TULIP_CMD_FULLDUPLEX); +} + +static const tulip_boardsw_t tulip_21140_accton_boardsw = { + TULIP_21140_EN1207, + tulip_21140_accton_media_probe, + tulip_media_select, + tulip_null_media_poll, + tulip_2114x_media_preset, +}; + +static void +tulip_21140_smc9332_media_probe( + tulip_softc_t * const sc) +{ + tulip_media_info_t *mip = sc->tulip_mediainfo; + int idx, cnt = 0; + + TULIP_CSR_WRITE(sc, csr_command, TULIP_CMD_PORTSELECT|TULIP_CMD_MUSTBEONE); + TULIP_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET); + DELAY(10); /* Wait 10 microseconds (actually 50 PCI cycles but at + 33MHz that comes to two microseconds but wait a + bit longer anyways) */ + TULIP_CSR_WRITE(sc, csr_command, TULIP_CMD_PORTSELECT | + TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE); + sc->tulip_gpinit = TULIP_GP_SMC_9332_PINS; + sc->tulip_gpdata = TULIP_GP_SMC_9332_INIT; + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_SMC_9332_PINS|TULIP_GP_PINSET); + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_SMC_9332_INIT); + DELAY(200000); + for (idx = 1000; idx > 0; idx--) { + u_int32_t csr = TULIP_CSR_READ(sc, csr_gp); + if ((csr & (TULIP_GP_SMC_9332_OK10|TULIP_GP_SMC_9332_OK100)) == (TULIP_GP_SMC_9332_OK10|TULIP_GP_SMC_9332_OK100)) { + if (++cnt > 100) + break; + } else if ((csr & TULIP_GP_SMC_9332_OK10) == 0) { + break; + } else { + cnt = 0; + } + DELAY(1000); + } + sc->tulip_media = cnt > 100 ? TULIP_MEDIA_100BASETX : TULIP_MEDIA_10BASET; + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASETX, + TULIP_GP_SMC_9332_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_SCRAMBLER); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASETX_FD, + TULIP_GP_SMC_9332_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_SCRAMBLER|TULIP_CMD_FULLDUPLEX); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_10BASET, + TULIP_GP_SMC_9332_INIT, + TULIP_CMD_TXTHRSHLDCTL); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_10BASET_FD, + TULIP_GP_SMC_9332_INIT, + TULIP_CMD_TXTHRSHLDCTL|TULIP_CMD_FULLDUPLEX); +} + +static const tulip_boardsw_t tulip_21140_smc9332_boardsw = { + TULIP_21140_SMC_9332, + tulip_21140_smc9332_media_probe, + tulip_media_select, + tulip_null_media_poll, + tulip_2114x_media_preset, +}; + +static void +tulip_21140_cogent_em100_media_probe( + tulip_softc_t * const sc) +{ + tulip_media_info_t *mip = sc->tulip_mediainfo; + u_int32_t cmdmode = TULIP_CSR_READ(sc, csr_command); + + sc->tulip_gpinit = TULIP_GP_EM100_PINS; + sc->tulip_gpdata = TULIP_GP_EM100_INIT; + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EM100_PINS); + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EM100_INIT); + + cmdmode = TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION|TULIP_CMD_MUSTBEONE; + cmdmode &= ~(TULIP_CMD_TXTHRSHLDCTL|TULIP_CMD_SCRAMBLER); + if (sc->tulip_rombuf[32] == TULIP_COGENT_EM100FX_ID) { + TULIP_CSR_WRITE(sc, csr_command, cmdmode); + sc->tulip_media = TULIP_MEDIA_100BASEFX; + + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASEFX, + TULIP_GP_EM100_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASEFX_FD, + TULIP_GP_EM100_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_FULLDUPLEX); + } else { + TULIP_CSR_WRITE(sc, csr_command, cmdmode|TULIP_CMD_SCRAMBLER); + sc->tulip_media = TULIP_MEDIA_100BASETX; + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASETX, + TULIP_GP_EM100_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_SCRAMBLER); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASETX_FD, + TULIP_GP_EM100_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_SCRAMBLER|TULIP_CMD_FULLDUPLEX); + } +} + +static const tulip_boardsw_t tulip_21140_cogent_em100_boardsw = { + TULIP_21140_COGENT_EM100, + tulip_21140_cogent_em100_media_probe, + tulip_media_select, + tulip_null_media_poll, + tulip_2114x_media_preset +}; + +static void +tulip_21140_znyx_zx34x_media_probe( + tulip_softc_t * const sc) +{ + tulip_media_info_t *mip = sc->tulip_mediainfo; + int cnt10 = 0, cnt100 = 0, idx; + + sc->tulip_gpinit = TULIP_GP_ZX34X_PINS; + sc->tulip_gpdata = TULIP_GP_ZX34X_INIT; + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_ZX34X_PINS); + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_ZX34X_INIT); + TULIP_CSR_WRITE(sc, csr_command, + TULIP_CSR_READ(sc, csr_command) | TULIP_CMD_PORTSELECT | + TULIP_CMD_PCSFUNCTION | TULIP_CMD_SCRAMBLER | TULIP_CMD_MUSTBEONE); + TULIP_CSR_WRITE(sc, csr_command, + TULIP_CSR_READ(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL); + + DELAY(200000); + for (idx = 1000; idx > 0; idx--) { + u_int32_t csr = TULIP_CSR_READ(sc, csr_gp); + if ((csr & (TULIP_GP_ZX34X_LNKFAIL|TULIP_GP_ZX34X_SYMDET|TULIP_GP_ZX34X_SIGDET)) == (TULIP_GP_ZX34X_LNKFAIL|TULIP_GP_ZX34X_SYMDET|TULIP_GP_ZX34X_SIGDET)) { + if (++cnt100 > 100) + break; + } else if ((csr & TULIP_GP_ZX34X_LNKFAIL) == 0) { + if (++cnt10 > 100) + break; + } else { + cnt10 = 0; + cnt100 = 0; + } + DELAY(1000); + } + sc->tulip_media = cnt100 > 100 ? TULIP_MEDIA_100BASETX : TULIP_MEDIA_10BASET; + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_10BASET, + TULIP_GP_ZX34X_INIT, + TULIP_CMD_TXTHRSHLDCTL); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_10BASET_FD, + TULIP_GP_ZX34X_INIT, + TULIP_CMD_TXTHRSHLDCTL|TULIP_CMD_FULLDUPLEX); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASETX, + TULIP_GP_ZX34X_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_SCRAMBLER); + tulip_21140_mediainit(sc, mip++, TULIP_MEDIA_100BASETX_FD, + TULIP_GP_ZX34X_INIT, + TULIP_CMD_PORTSELECT|TULIP_CMD_PCSFUNCTION + |TULIP_CMD_SCRAMBLER|TULIP_CMD_FULLDUPLEX); +} + +static const tulip_boardsw_t tulip_21140_znyx_zx34x_boardsw = { + TULIP_21140_ZNYX_ZX34X, + tulip_21140_znyx_zx34x_media_probe, + tulip_media_select, + tulip_null_media_poll, + tulip_2114x_media_preset, +}; + +static void +tulip_2114x_media_probe( + tulip_softc_t * const sc) +{ + sc->tulip_cmdmode |= TULIP_CMD_MUSTBEONE + |TULIP_CMD_BACKOFFCTR|TULIP_CMD_THRSHLD72; +} + +static const tulip_boardsw_t tulip_2114x_isv_boardsw = { + TULIP_21140_ISV, + tulip_2114x_media_probe, + tulip_media_select, + tulip_media_poll, + tulip_2114x_media_preset, +}; + +/* + * ******** END of chip-specific handlers. *********** + */ + +/* + * Code the read the SROM and MII bit streams (I2C) + */ +#define EMIT do { TULIP_CSR_WRITE(sc, csr_srom_mii, csr); DELAY(1); } while (0) + +static void +tulip_srom_idle( + tulip_softc_t * const sc) +{ + unsigned bit, csr; + + csr = SROMSEL ; EMIT; + 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; + csr = 0; EMIT; +} + + +static void +tulip_srom_read( + tulip_softc_t * const sc) +{ + unsigned 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_srom_idle(sc); + + for (idx = 0; idx <= lastidx; idx++) { + unsigned lastbit, data, bits, bit, csr; + csr = SROMSEL ; EMIT; + 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 */ + } else { + EMIT; + } + 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_CSR_READ(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; + } + tulip_srom_idle(sc); +} + +#define MII_EMIT do { TULIP_CSR_WRITE(sc, csr_srom_mii, csr); DELAY(1); } while (0) + +static void +tulip_mii_writebits( + tulip_softc_t * const sc, + unsigned data, + unsigned bits) +{ + unsigned msb = 1 << (bits - 1); + unsigned csr = TULIP_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK); + unsigned lastbit = (csr & MII_DOUT) ? msb : 0; + + csr |= MII_WR; MII_EMIT; /* clock low; assert write */ + + for (; bits > 0; bits--, data <<= 1) { + const unsigned thisbit = data & msb; + if (thisbit != lastbit) { + csr ^= MII_DOUT; MII_EMIT; /* clock low; invert data */ + } + csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */ + lastbit = thisbit; + csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */ + } +} + +static void +tulip_mii_turnaround( + tulip_softc_t * const sc, + unsigned cmd) +{ + unsigned csr = TULIP_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK); + + if (cmd == MII_WRCMD) { + csr |= MII_DOUT; MII_EMIT; /* clock low; change data */ + csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */ + csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */ + csr ^= MII_DOUT; MII_EMIT; /* clock low; change data */ + } else { + csr |= MII_RD; MII_EMIT; /* clock low; switch to read */ + } + csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */ + csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */ +} + +static unsigned +tulip_mii_readbits( + tulip_softc_t * const sc) +{ + unsigned data; + unsigned csr = TULIP_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK); + int idx; + + for (idx = 0, data = 0; idx < 16; idx++) { + data <<= 1; /* this is NOOP on the first pass through */ + csr ^= MII_CLKON; MII_EMIT; /* clock high; data valid */ + if (TULIP_CSR_READ(sc, csr_srom_mii) & MII_DIN) + data |= 1; + csr ^= MII_CLKOFF; MII_EMIT; /* clock low; data not valid */ + } + csr ^= MII_RD; MII_EMIT; /* clock low; turn off read */ + + return data; +} + +static unsigned +tulip_mii_readreg( + tulip_softc_t * const sc, + unsigned devaddr, + unsigned regno) +{ + unsigned csr = TULIP_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK); + unsigned data; + + csr &= ~(MII_RD|MII_CLK); MII_EMIT; + tulip_mii_writebits(sc, MII_PREAMBLE, 32); + tulip_mii_writebits(sc, MII_RDCMD, 8); + tulip_mii_writebits(sc, devaddr, 5); + tulip_mii_writebits(sc, regno, 5); + tulip_mii_turnaround(sc, MII_RDCMD); + + data = tulip_mii_readbits(sc); +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_phyregs[regno][0] = data; + sc->tulip_dbg.dbg_phyregs[regno][1]++; +#endif + return data; +} + +static void +tulip_mii_writereg( + tulip_softc_t * const sc, + unsigned devaddr, + unsigned regno, + unsigned data) +{ + unsigned csr = TULIP_CSR_READ(sc, csr_srom_mii) & (MII_RD|MII_DOUT|MII_CLK); + csr &= ~(MII_RD|MII_CLK); MII_EMIT; + tulip_mii_writebits(sc, MII_PREAMBLE, 32); + tulip_mii_writebits(sc, MII_WRCMD, 8); + tulip_mii_writebits(sc, devaddr, 5); + tulip_mii_writebits(sc, regno, 5); + tulip_mii_turnaround(sc, MII_WRCMD); + tulip_mii_writebits(sc, data, 16); +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_phyregs[regno][2] = data; + sc->tulip_dbg.dbg_phyregs[regno][3]++; +#endif +} + +#define tulip_mchash(mca) (tulip_crc32(mca, 6) & 0x1FF) +#define tulip_srom_crcok(databuf) ( \ + ((tulip_crc32(databuf, 126) & 0xFFFFU) ^ 0xFFFFU) == \ + ((databuf)[126] | ((databuf)[127] << 8))) + +static unsigned +tulip_crc32( + const unsigned char *databuf, + size_t datalen) +{ + u_int idx, crc = 0xFFFFFFFFUL; + static const u_int crctab[] = { + 0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac, + 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c, + 0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, + 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c + }; + + for (idx = 0; idx < datalen; idx++) { + crc ^= *databuf++; + crc = (crc >> 4) ^ crctab[crc & 0xf]; + crc = (crc >> 4) ^ crctab[crc & 0xf]; + } + return crc; +} + +static void +tulip_identify_dec_nic( + tulip_softc_t * const sc) +{ + strcpy(sc->tulip_boardid, "DEC "); +#define D0 4 + if (sc->tulip_chipid <= TULIP_21040) + return; + if (bcmp(sc->tulip_rombuf + 29, "DE500", 5) == 0 + || bcmp(sc->tulip_rombuf + 29, "DE450", 5) == 0) { + bcopy(sc->tulip_rombuf + 29, &sc->tulip_boardid[D0], 8); + sc->tulip_boardid[D0+8] = ' '; + } +#undef D0 +} + +static void +tulip_identify_znyx_nic( + tulip_softc_t * const sc) +{ + unsigned id = 0; + strcpy(sc->tulip_boardid, "ZNYX ZX3XX "); + if (sc->tulip_chipid == TULIP_21140 || sc->tulip_chipid == TULIP_21140A) { + unsigned znyx_ptr; + sc->tulip_boardid[8] = '4'; + znyx_ptr = sc->tulip_rombuf[124] + 256 * sc->tulip_rombuf[125]; + if (znyx_ptr < 26 || znyx_ptr > 116) { + sc->tulip_boardsw = &tulip_21140_znyx_zx34x_boardsw; + return; + } + /* ZX344 = 0010 .. 0013FF + */ + if (sc->tulip_rombuf[znyx_ptr] == 0x4A + && sc->tulip_rombuf[znyx_ptr + 1] == 0x52 + && sc->tulip_rombuf[znyx_ptr + 2] == 0x01) { + id = sc->tulip_rombuf[znyx_ptr + 5] + 256 * sc->tulip_rombuf[znyx_ptr + 4]; + if ((id >> 8) == (TULIP_ZNYX_ID_ZX342 >> 8)) { + sc->tulip_boardid[9] = '2'; + if (id == TULIP_ZNYX_ID_ZX342B) { + sc->tulip_boardid[10] = 'B'; + sc->tulip_boardid[11] = ' '; + } + sc->tulip_boardsw = &tulip_21140_znyx_zx34x_boardsw; + } else if (id == TULIP_ZNYX_ID_ZX344) { + sc->tulip_boardid[10] = '4'; + sc->tulip_boardsw = &tulip_21140_znyx_zx34x_boardsw; + } else if (id == TULIP_ZNYX_ID_ZX345) { + sc->tulip_boardid[9] = (sc->tulip_rombuf[19] > 1) ? '8' : '5'; + } else if (id == TULIP_ZNYX_ID_ZX346) { + sc->tulip_boardid[9] = '6'; + } else if (id == TULIP_ZNYX_ID_ZX351) { + sc->tulip_boardid[8] = '5'; + sc->tulip_boardid[9] = '1'; + } + } + if (id == 0) { + /* + * Assume it's a ZX342... + */ + sc->tulip_boardsw = &tulip_21140_znyx_zx34x_boardsw; + } + return; + } + sc->tulip_boardid[8] = '1'; + if (sc->tulip_chipid == TULIP_21041) { + sc->tulip_boardid[10] = '1'; + return; + } + if (sc->tulip_rombuf[32] == 0x4A && sc->tulip_rombuf[33] == 0x52) { + id = sc->tulip_rombuf[37] + 256 * sc->tulip_rombuf[36]; + if (id == TULIP_ZNYX_ID_ZX312T) { + sc->tulip_boardid[9] = '2'; + sc->tulip_boardid[10] = 'T'; + sc->tulip_boardid[11] = ' '; + sc->tulip_boardsw = &tulip_21040_10baset_only_boardsw; + } else if (id == TULIP_ZNYX_ID_ZX314_INTA) { + sc->tulip_boardid[9] = '4'; + sc->tulip_boardsw = &tulip_21040_10baset_only_boardsw; + sc->tulip_features |= TULIP_HAVE_SHAREDINTR|TULIP_HAVE_BASEROM; + } else if (id == TULIP_ZNYX_ID_ZX314) { + sc->tulip_boardid[9] = '4'; + sc->tulip_boardsw = &tulip_21040_10baset_only_boardsw; + sc->tulip_features |= TULIP_HAVE_BASEROM; + } else if (id == TULIP_ZNYX_ID_ZX315_INTA) { + sc->tulip_boardid[9] = '5'; + sc->tulip_features |= TULIP_HAVE_SHAREDINTR|TULIP_HAVE_BASEROM; + } else if (id == TULIP_ZNYX_ID_ZX315) { + sc->tulip_boardid[9] = '5'; + sc->tulip_features |= TULIP_HAVE_BASEROM; + } else { + id = 0; + } + } + if (id == 0) { + if ((sc->tulip_enaddr[3] & ~3) == 0xF0 && (sc->tulip_enaddr[5] & 2) == 0) { + sc->tulip_boardid[9] = '4'; + sc->tulip_boardsw = &tulip_21040_10baset_only_boardsw; + sc->tulip_features |= TULIP_HAVE_SHAREDINTR|TULIP_HAVE_BASEROM; + } else if ((sc->tulip_enaddr[3] & ~3) == 0xF4 && (sc->tulip_enaddr[5] & 1) == 0) { + sc->tulip_boardid[9] = '5'; + sc->tulip_boardsw = &tulip_21040_boardsw; + sc->tulip_features |= TULIP_HAVE_SHAREDINTR|TULIP_HAVE_BASEROM; + } else if ((sc->tulip_enaddr[3] & ~3) == 0xEC) { + sc->tulip_boardid[9] = '2'; + sc->tulip_boardsw = &tulip_21040_boardsw; + } + } +} + +static void +tulip_identify_smc_nic( + tulip_softc_t * const sc) +{ + u_int32_t id1, id2, ei; + int auibnc = 0, utp = 0; + char *cp; + + strcpy(sc->tulip_boardid, "SMC "); + if (sc->tulip_chipid == TULIP_21041) + return; + if (sc->tulip_chipid != TULIP_21040) { + if (sc->tulip_boardsw != &tulip_2114x_isv_boardsw) { + strcpy(&sc->tulip_boardid[4], "9332DST "); + sc->tulip_boardsw = &tulip_21140_smc9332_boardsw; + } else if (sc->tulip_features & (TULIP_HAVE_BASEROM|TULIP_HAVE_SLAVEDROM)) { + strcpy(&sc->tulip_boardid[4], "9334BDT "); + } else { + strcpy(&sc->tulip_boardid[4], "9332BDT "); + } + return; + } + id1 = sc->tulip_rombuf[0x60] | (sc->tulip_rombuf[0x61] << 8); + id2 = sc->tulip_rombuf[0x62] | (sc->tulip_rombuf[0x63] << 8); + ei = sc->tulip_rombuf[0x66] | (sc->tulip_rombuf[0x67] << 8); + + strcpy(&sc->tulip_boardid[4], "8432"); + cp = &sc->tulip_boardid[8]; + if ((id1 & 1) == 0) + *cp++ = 'B', auibnc = 1; + if ((id1 & 0xFF) > 0x32) + *cp++ = 'T', utp = 1; + if ((id1 & 0x4000) == 0) + *cp++ = 'A', auibnc = 1; + if (id2 == 0x15) { + sc->tulip_boardid[7] = '4'; + *cp++ = '-'; + *cp++ = 'C'; + *cp++ = 'H'; + *cp++ = (ei ? '2' : '1'); + } + *cp++ = ' '; + *cp = '\0'; + if (utp && !auibnc) + sc->tulip_boardsw = &tulip_21040_10baset_only_boardsw; + else if (!utp && auibnc) + sc->tulip_boardsw = &tulip_21040_auibnc_only_boardsw; +} + +static void +tulip_identify_cogent_nic( + tulip_softc_t * const sc) +{ + strcpy(sc->tulip_boardid, "Cogent "); + if (sc->tulip_chipid == TULIP_21140 || sc->tulip_chipid == TULIP_21140A) { + if (sc->tulip_rombuf[32] == TULIP_COGENT_EM100TX_ID) { + strcat(sc->tulip_boardid, "EM100TX "); + sc->tulip_boardsw = &tulip_21140_cogent_em100_boardsw; +#if defined(TULIP_COGENT_EM110TX_ID) + } else if (sc->tulip_rombuf[32] == TULIP_COGENT_EM110TX_ID) { + strcat(sc->tulip_boardid, "EM110TX "); + sc->tulip_boardsw = &tulip_21140_cogent_em100_boardsw; +#endif + } else if (sc->tulip_rombuf[32] == TULIP_COGENT_EM100FX_ID) { + strcat(sc->tulip_boardid, "EM100FX "); + sc->tulip_boardsw = &tulip_21140_cogent_em100_boardsw; + } + /* + * Magic number (0x24001109U) is the SubVendor (0x2400) and + * SubDevId (0x1109) for the ANA6944TX (EM440TX). + */ + if (*(u_int32_t *) sc->tulip_rombuf == 0x24001109U + && (sc->tulip_features & TULIP_HAVE_BASEROM)) { + /* + * Cogent (Adaptec) is still mapping all INTs to INTA of + * first 21140. Dumb! Dumb! + */ + strcat(sc->tulip_boardid, "EM440TX "); + sc->tulip_features |= TULIP_HAVE_SHAREDINTR; + } + } else if (sc->tulip_chipid == TULIP_21040) { + sc->tulip_features |= TULIP_HAVE_SHAREDINTR|TULIP_HAVE_BASEROM; + } +} + +static void +tulip_identify_accton_nic( + tulip_softc_t * const sc) +{ + strcpy(sc->tulip_boardid, "ACCTON "); + switch (sc->tulip_chipid) { + case TULIP_21140A: + strcat(sc->tulip_boardid, "EN1207 "); + if (sc->tulip_boardsw != &tulip_2114x_isv_boardsw) + sc->tulip_boardsw = &tulip_21140_accton_boardsw; + break; + case TULIP_21140: + strcat(sc->tulip_boardid, "EN1207TX "); + if (sc->tulip_boardsw != &tulip_2114x_isv_boardsw) + sc->tulip_boardsw = &tulip_21140_eb_boardsw; + break; + case TULIP_21040: + strcat(sc->tulip_boardid, "EN1203 "); + sc->tulip_boardsw = &tulip_21040_boardsw; + break; + case TULIP_21041: + strcat(sc->tulip_boardid, "EN1203 "); + sc->tulip_boardsw = &tulip_21041_boardsw; + break; + default: + sc->tulip_boardsw = &tulip_2114x_isv_boardsw; + break; + } +} + +static void +tulip_identify_asante_nic( + tulip_softc_t * const sc) +{ + strcpy(sc->tulip_boardid, "Asante "); + if ((sc->tulip_chipid == TULIP_21140 || sc->tulip_chipid == TULIP_21140A) + && sc->tulip_boardsw != &tulip_2114x_isv_boardsw) { + tulip_media_info_t *mi = sc->tulip_mediainfo; + int idx; + /* + * The Asante Fast Ethernet doesn't always ship with a valid + * new format SROM. So if isn't in the new format, we cheat + * set it up as if we had. + */ + + sc->tulip_gpinit = TULIP_GP_ASANTE_PINS; + sc->tulip_gpdata = 0; + + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_ASANTE_PINS|TULIP_GP_PINSET); + TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_ASANTE_PHYRESET); + DELAY(100); + TULIP_CSR_WRITE(sc, csr_gp, 0); + + mi->mi_type = TULIP_MEDIAINFO_MII; + mi->mi_gpr_length = 0; + mi->mi_gpr_offset = 0; + mi->mi_reset_length = 0; + mi->mi_reset_offset = 0;; + + mi->mi_phyaddr = TULIP_MII_NOPHY; + for (idx = 20; idx > 0 && mi->mi_phyaddr == TULIP_MII_NOPHY; idx--) { + DELAY(10000); + mi->mi_phyaddr = tulip_mii_get_phyaddr(sc, 0); + } + if (mi->mi_phyaddr == TULIP_MII_NOPHY) { + printf("%s%d: can't find phy 0\n", sc->tulip_name, sc->tulip_unit); + return; + } + + sc->tulip_features |= TULIP_HAVE_MII; + mi->mi_capabilities = PHYSTS_10BASET|PHYSTS_10BASET_FD|PHYSTS_100BASETX|PHYSTS_100BASETX_FD; + mi->mi_advertisement = PHYSTS_10BASET|PHYSTS_10BASET_FD|PHYSTS_100BASETX|PHYSTS_100BASETX_FD; + mi->mi_full_duplex = PHYSTS_10BASET_FD|PHYSTS_100BASETX_FD; + mi->mi_tx_threshold = PHYSTS_10BASET|PHYSTS_10BASET_FD; + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 100BASETX_FD); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 100BASETX); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 100BASET4); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 10BASET_FD); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 10BASET); + mi->mi_phyid = (tulip_mii_readreg(sc, mi->mi_phyaddr, PHYREG_IDLOW) << 16) | + tulip_mii_readreg(sc, mi->mi_phyaddr, PHYREG_IDHIGH); + + sc->tulip_boardsw = &tulip_2114x_isv_boardsw; + } +} + +static void +tulip_identify_compex_nic( + tulip_softc_t * const sc) +{ + strcpy(sc->tulip_boardid, "COMPEX "); + if (sc->tulip_chipid == TULIP_21140A) { + int root_unit; + tulip_softc_t *root_sc = NULL; + + strcat(sc->tulip_boardid, "400TX/PCI "); + /* + * All 4 chips on these boards share an interrupt. This code + * copied from tulip_read_macaddr. + */ + sc->tulip_features |= TULIP_HAVE_SHAREDINTR; + for (root_unit = sc->tulip_unit - 1; root_unit >= 0; root_unit--) { + root_sc = tulips[root_unit]; + if (root_sc == NULL + || !(root_sc->tulip_features & TULIP_HAVE_SLAVEDINTR)) + break; + root_sc = NULL; + } + if (root_sc != NULL + && root_sc->tulip_chipid == sc->tulip_chipid + && root_sc->tulip_pci_busno == sc->tulip_pci_busno) { + sc->tulip_features |= TULIP_HAVE_SLAVEDINTR; + sc->tulip_slaves = root_sc->tulip_slaves; + root_sc->tulip_slaves = sc; + } else if(sc->tulip_features & TULIP_HAVE_SLAVEDINTR) { + printf("\nCannot find master device for de%d interrupts", + sc->tulip_unit); + } + } else { + strcat(sc->tulip_boardid, "unknown "); + } + /* sc->tulip_boardsw = &tulip_21140_eb_boardsw; */ + return; +} + +static int +tulip_srom_decode( + tulip_softc_t * const sc) +{ + unsigned idx1, idx2, idx3; + + const tulip_srom_header_t *shp = (const tulip_srom_header_t *) &sc->tulip_rombuf[0]; + const tulip_srom_adapter_info_t *saip = (const tulip_srom_adapter_info_t *) (shp + 1); + tulip_srom_media_t srom_media; + tulip_media_info_t *mi = sc->tulip_mediainfo; + const u_int8_t *dp; + u_int32_t leaf_offset, blocks, data; + + for (idx1 = 0; idx1 < shp->sh_adapter_count; idx1++, saip++) { + if (shp->sh_adapter_count == 1) + break; + if (saip->sai_device == sc->tulip_pci_devno) + break; + } + /* + * Didn't find the right media block for this card. + */ + if (idx1 == shp->sh_adapter_count) + return 0; + + /* + * Save the hardware address. + */ + bcopy(shp->sh_ieee802_address, sc->tulip_enaddr, 6); + /* + * If this is a multiple port card, add the adapter index to the last + * byte of the hardware address. (if it isn't multiport, adding 0 + * won't hurt. + */ + sc->tulip_enaddr[5] += idx1; + + leaf_offset = saip->sai_leaf_offset_lowbyte + + saip->sai_leaf_offset_highbyte * 256; + dp = sc->tulip_rombuf + leaf_offset; + + sc->tulip_conntype = (tulip_srom_connection_t) (dp[0] + dp[1] * 256); dp += 2; + + for (idx2 = 0;; idx2++) { + if (tulip_srom_conninfo[idx2].sc_type == sc->tulip_conntype + || tulip_srom_conninfo[idx2].sc_type == TULIP_SROM_CONNTYPE_NOT_USED) + break; + } + sc->tulip_connidx = idx2; + + if (sc->tulip_chipid == TULIP_21041) { + blocks = *dp++; + for (idx2 = 0; idx2 < blocks; idx2++) { + tulip_media_t media; + data = *dp++; + srom_media = (tulip_srom_media_t) (data & 0x3F); + for (idx3 = 0; tulip_srom_mediums[idx3].sm_type != TULIP_MEDIA_UNKNOWN; idx3++) { + if (tulip_srom_mediums[idx3].sm_srom_type == srom_media) + break; + } + media = tulip_srom_mediums[idx3].sm_type; + if (media != TULIP_MEDIA_UNKNOWN) { + if (data & TULIP_SROM_21041_EXTENDED) { + mi->mi_type = TULIP_MEDIAINFO_SIA; + sc->tulip_mediums[media] = mi; + mi->mi_sia_connectivity = dp[0] + dp[1] * 256; + mi->mi_sia_tx_rx = dp[2] + dp[3] * 256; + mi->mi_sia_general = dp[4] + dp[5] * 256; + mi++; + } else { + switch (media) { + case TULIP_MEDIA_BNC: { + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21041, BNC); + mi++; + break; + } + case TULIP_MEDIA_AUI: { + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21041, AUI); + mi++; + break; + } + case TULIP_MEDIA_10BASET: { + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21041, 10BASET); + mi++; + break; + } + case TULIP_MEDIA_10BASET_FD: { + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21041, 10BASET_FD); + mi++; + break; + } + default: { + break; + } + } + } + } + if (data & TULIP_SROM_21041_EXTENDED) + dp += 6; + } +#ifdef notdef + if (blocks == 0) { + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21041, BNC); mi++; + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21041, AUI); mi++; + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21041, 10BASET); mi++; + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21041, 10BASET_FD); mi++; + } +#endif + } else { + unsigned length, type; + tulip_media_t gp_media = TULIP_MEDIA_UNKNOWN; + if (sc->tulip_features & TULIP_HAVE_GPR) + sc->tulip_gpinit = *dp++; + blocks = *dp++; + for (idx2 = 0; idx2 < blocks; idx2++) { + const u_int8_t *ep; + if ((*dp & 0x80) == 0) { + length = 4; + type = 0; + } else { + length = (*dp++ & 0x7f) - 1; + type = *dp++ & 0x3f; + } + ep = dp + length; + switch (type & 0x3f) { + case 0: { /* 21140[A] GPR block */ + tulip_media_t media; + srom_media = (tulip_srom_media_t)(dp[0] & 0x3f); + for (idx3 = 0; tulip_srom_mediums[idx3].sm_type != TULIP_MEDIA_UNKNOWN; idx3++) { + if (tulip_srom_mediums[idx3].sm_srom_type == srom_media) + break; + } + media = tulip_srom_mediums[idx3].sm_type; + if (media == TULIP_MEDIA_UNKNOWN) + break; + mi->mi_type = TULIP_MEDIAINFO_GPR; + sc->tulip_mediums[media] = mi; + mi->mi_gpdata = dp[1]; + if (media > gp_media && !TULIP_IS_MEDIA_FD(media)) { + sc->tulip_gpdata = mi->mi_gpdata; + gp_media = media; + } + data = dp[2] + dp[3] * 256; + mi->mi_cmdmode = TULIP_SROM_2114X_CMDBITS(data); + if (data & TULIP_SROM_2114X_NOINDICATOR) { + mi->mi_actmask = 0; + } else { +#if 0 + mi->mi_default = (data & TULIP_SROM_2114X_DEFAULT) != 0; +#endif + mi->mi_actmask = TULIP_SROM_2114X_BITPOS(data); + mi->mi_actdata = (data & TULIP_SROM_2114X_POLARITY) ? 0 : mi->mi_actmask; + } + mi++; + break; + } + case 1: { /* 21140[A] MII block */ + const unsigned phyno = *dp++; + mi->mi_type = TULIP_MEDIAINFO_MII; + mi->mi_gpr_length = *dp++; + mi->mi_gpr_offset = dp - sc->tulip_rombuf; + dp += mi->mi_gpr_length; + mi->mi_reset_length = *dp++; + mi->mi_reset_offset = dp - sc->tulip_rombuf; + dp += mi->mi_reset_length; + + /* + * Before we probe for a PHY, use the GPR information + * to select it. If we don't, it may be inaccessible. + */ + TULIP_CSR_WRITE(sc, csr_gp, sc->tulip_gpinit|TULIP_GP_PINSET); + for (idx3 = 0; idx3 < mi->mi_reset_length; idx3++) { + DELAY(10); + TULIP_CSR_WRITE(sc, csr_gp, sc->tulip_rombuf[mi->mi_reset_offset + idx3]); + } + sc->tulip_phyaddr = mi->mi_phyaddr; + for (idx3 = 0; idx3 < mi->mi_gpr_length; idx3++) { + DELAY(10); + TULIP_CSR_WRITE(sc, csr_gp, sc->tulip_rombuf[mi->mi_gpr_offset + idx3]); + } + + /* + * At least write something! + */ + if (mi->mi_reset_length == 0 && mi->mi_gpr_length == 0) + TULIP_CSR_WRITE(sc, csr_gp, 0); + + mi->mi_phyaddr = TULIP_MII_NOPHY; + for (idx3 = 20; idx3 > 0 && mi->mi_phyaddr == TULIP_MII_NOPHY; idx3--) { + DELAY(10000); + mi->mi_phyaddr = tulip_mii_get_phyaddr(sc, phyno); + } + if (mi->mi_phyaddr == TULIP_MII_NOPHY) { +#if defined(TULIP_DEBUG) + printf("%s%d: can't find phy %d\n", + sc->tulip_name, sc->tulip_unit, phyno); +#endif + break; + } + sc->tulip_features |= TULIP_HAVE_MII; + mi->mi_capabilities = dp[0] + dp[1] * 256; dp += 2; + mi->mi_advertisement = dp[0] + dp[1] * 256; dp += 2; + mi->mi_full_duplex = dp[0] + dp[1] * 256; dp += 2; + mi->mi_tx_threshold = dp[0] + dp[1] * 256; dp += 2; + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 100BASETX_FD); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 100BASETX); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 100BASET4); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 10BASET_FD); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 10BASET); + mi->mi_phyid = (tulip_mii_readreg(sc, mi->mi_phyaddr, PHYREG_IDLOW) << 16) | + tulip_mii_readreg(sc, mi->mi_phyaddr, PHYREG_IDHIGH); + mi++; + break; + } + case 2: { /* 2114[23] SIA block */ + tulip_media_t media; + srom_media = (tulip_srom_media_t)(dp[0] & 0x3f); + for (idx3 = 0; tulip_srom_mediums[idx3].sm_type != TULIP_MEDIA_UNKNOWN; idx3++) { + if (tulip_srom_mediums[idx3].sm_srom_type == srom_media) + break; + } + media = tulip_srom_mediums[idx3].sm_type; + if (media == TULIP_MEDIA_UNKNOWN) + break; + mi->mi_type = TULIP_MEDIAINFO_SIA; + sc->tulip_mediums[media] = mi; + if (dp[0] & 0x40) { + mi->mi_sia_connectivity = dp[1] + dp[2] * 256; + mi->mi_sia_tx_rx = dp[3] + dp[4] * 256; + mi->mi_sia_general = dp[5] + dp[6] * 256; + dp += 6; + } else { + switch (media) { + case TULIP_MEDIA_BNC: { + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21142, BNC); + break; + } + case TULIP_MEDIA_AUI: { + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21142, AUI); + break; + } + case TULIP_MEDIA_10BASET: { + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21142, 10BASET); + sc->tulip_intrmask |= TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL; + break; + } + case TULIP_MEDIA_10BASET_FD: { + TULIP_MEDIAINFO_SIA_INIT(sc, mi, 21142, 10BASET_FD); + sc->tulip_intrmask |= TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL; + break; + } + default: { + goto bad_media; + } + } + } + mi->mi_sia_gp_control = (dp[1] + dp[2] * 256) << 16; + mi->mi_sia_gp_data = (dp[3] + dp[4] * 256) << 16; + mi++; + bad_media: + break; + } + case 3: { /* 2114[23] MII PHY block */ + const unsigned phyno = *dp++; + const u_int8_t *dp0; + mi->mi_type = TULIP_MEDIAINFO_MII; + mi->mi_gpr_length = *dp++; + mi->mi_gpr_offset = dp - sc->tulip_rombuf; + dp += 2 * mi->mi_gpr_length; + mi->mi_reset_length = *dp++; + mi->mi_reset_offset = dp - sc->tulip_rombuf; + dp += 2 * mi->mi_reset_length; + + dp0 = &sc->tulip_rombuf[mi->mi_reset_offset]; + for (idx3 = 0; idx3 < mi->mi_reset_length; idx3++, dp0 += 2) { + DELAY(10); + TULIP_CSR_WRITE(sc, csr_sia_general, (dp0[0] + 256 * dp0[1]) << 16); + } + sc->tulip_phyaddr = mi->mi_phyaddr; + dp0 = &sc->tulip_rombuf[mi->mi_gpr_offset]; + for (idx3 = 0; idx3 < mi->mi_gpr_length; idx3++, dp0 += 2) { + DELAY(10); + TULIP_CSR_WRITE(sc, csr_sia_general, (dp0[0] + 256 * dp0[1]) << 16); + } + + if (mi->mi_reset_length == 0 && mi->mi_gpr_length == 0) + TULIP_CSR_WRITE(sc, csr_sia_general, 0); + + mi->mi_phyaddr = TULIP_MII_NOPHY; + for (idx3 = 20; idx3 > 0 && mi->mi_phyaddr == TULIP_MII_NOPHY; idx3--) { + DELAY(10000); + mi->mi_phyaddr = tulip_mii_get_phyaddr(sc, phyno); + } + if (mi->mi_phyaddr == TULIP_MII_NOPHY) { +#if defined(TULIP_DEBUG) + printf("%s%d: can't find phy %d\n", + sc->tulip_name, sc->tulip_unit, phyno); +#endif + break; + } + sc->tulip_features |= TULIP_HAVE_MII; + mi->mi_capabilities = dp[0] + dp[1] * 256; dp += 2; + mi->mi_advertisement = dp[0] + dp[1] * 256; dp += 2; + mi->mi_full_duplex = dp[0] + dp[1] * 256; dp += 2; + mi->mi_tx_threshold = dp[0] + dp[1] * 256; dp += 2; + mi->mi_mii_interrupt = dp[0] + dp[1] * 256; dp += 2; + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 100BASETX_FD); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 100BASETX); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 100BASET4); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 10BASET_FD); + TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, 10BASET); + mi->mi_phyid = (tulip_mii_readreg(sc, mi->mi_phyaddr, PHYREG_IDLOW) << 16) | + tulip_mii_readreg(sc, mi->mi_phyaddr, PHYREG_IDHIGH); + mi++; + break; + } + case 4: { /* 21143 SYM block */ + tulip_media_t media; + srom_media = (tulip_srom_media_t) dp[0]; + for (idx3 = 0; tulip_srom_mediums[idx3].sm_type != TULIP_MEDIA_UNKNOWN; idx3++) { + if (tulip_srom_mediums[idx3].sm_srom_type == srom_media) + break; + } + media = tulip_srom_mediums[idx3].sm_type; + if (media == TULIP_MEDIA_UNKNOWN) + break; + mi->mi_type = TULIP_MEDIAINFO_SYM; + sc->tulip_mediums[media] = mi; + mi->mi_gpcontrol = (dp[1] + dp[2] * 256) << 16; + mi->mi_gpdata = (dp[3] + dp[4] * 256) << 16; + data = dp[5] + dp[6] * 256; + mi->mi_cmdmode = TULIP_SROM_2114X_CMDBITS(data); + if (data & TULIP_SROM_2114X_NOINDICATOR) { + mi->mi_actmask = 0; + } else { + mi->mi_default = (data & TULIP_SROM_2114X_DEFAULT) != 0; + mi->mi_actmask = TULIP_SROM_2114X_BITPOS(data); + mi->mi_actdata = (data & TULIP_SROM_2114X_POLARITY) ? 0 : mi->mi_actmask; + } + if (TULIP_IS_MEDIA_TP(media)) + sc->tulip_intrmask |= TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL; + mi++; + break; + } +#if 0 + case 5: { /* 21143 Reset block */ + mi->mi_type = TULIP_MEDIAINFO_RESET; + mi->mi_reset_length = *dp++; + mi->mi_reset_offset = dp - sc->tulip_rombuf; + dp += 2 * mi->mi_reset_length; + mi++; + break; + } +#endif + default: { + } + } + dp = ep; + } + } + return mi - sc->tulip_mediainfo; +} + +static const struct { + void (*vendor_identify_nic)(tulip_softc_t * const sc); + unsigned char vendor_oui[3]; +} tulip_vendors[] = { + { tulip_identify_dec_nic, { 0x08, 0x00, 0x2B } }, + { tulip_identify_dec_nic, { 0x00, 0x00, 0xF8 } }, + { tulip_identify_smc_nic, { 0x00, 0x00, 0xC0 } }, + { tulip_identify_smc_nic, { 0x00, 0xE0, 0x29 } }, + { tulip_identify_znyx_nic, { 0x00, 0xC0, 0x95 } }, + { tulip_identify_cogent_nic, { 0x00, 0x00, 0x92 } }, + { tulip_identify_asante_nic, { 0x00, 0x00, 0x94 } }, + { tulip_identify_cogent_nic, { 0x00, 0x00, 0xD1 } }, + { tulip_identify_accton_nic, { 0x00, 0x00, 0xE8 } }, + { tulip_identify_compex_nic, { 0x00, 0x80, 0x48 } }, + { NULL } +}; + +/* + * This deals with the vagaries of the address roms and the + * brain-deadness that various vendors commit in using them. + */ +static int +tulip_read_macaddr( + tulip_softc_t * const sc) +{ + unsigned cksum, rom_cksum, idx; + u_int32_t csr; + unsigned char tmpbuf[8]; + static const u_char testpat[] = { 0xFF, 0, 0x55, 0xAA, 0xFF, 0, 0x55, 0xAA }; + + sc->tulip_connidx = TULIP_SROM_LASTCONNIDX; + + if (sc->tulip_chipid == TULIP_21040) { + TULIP_CSR_WRITE(sc, csr_enetrom, 1); + for (idx = 0; idx < sizeof(sc->tulip_rombuf); idx++) { + int cnt = 0; + while (((csr = TULIP_CSR_READ(sc, csr_enetrom)) & 0x80000000L) && cnt < 10000) + cnt++; + sc->tulip_rombuf[idx] = csr & 0xFF; + } + sc->tulip_boardsw = &tulip_21040_boardsw; + } else { + if (sc->tulip_chipid == TULIP_21041) { + /* + * Thankfully all 21041's act the same. + */ + sc->tulip_boardsw = &tulip_21041_boardsw; + } else { + /* + * Assume all 21140 board are compatible with the + * DEC 10/100 evaluation board. Not really valid but + * it's the best we can do until every one switches to + * the new SROM format. + */ + + sc->tulip_boardsw = &tulip_21140_eb_boardsw; + } + tulip_srom_read(sc); + if (tulip_srom_crcok(sc->tulip_rombuf)) { + /* + * SROM CRC is valid therefore it must be in the + * new format. + */ + sc->tulip_features |= TULIP_HAVE_ISVSROM|TULIP_HAVE_OKSROM; + } else if (sc->tulip_rombuf[126] == 0xff && sc->tulip_rombuf[127] == 0xFF) { + /* + * No checksum is present. See if the SROM id checks out; + * the first 18 bytes should be 0 followed by a 1 followed + * by the number of adapters (which we don't deal with yet). + */ + for (idx = 0; idx < 18; idx++) { + if (sc->tulip_rombuf[idx] != 0) + break; + } + if (idx == 18 && sc->tulip_rombuf[18] == 1 && sc->tulip_rombuf[19] != 0) + sc->tulip_features |= TULIP_HAVE_ISVSROM; + } else if (sc->tulip_chipid >= TULIP_21142) { + sc->tulip_features |= TULIP_HAVE_ISVSROM; + sc->tulip_boardsw = &tulip_2114x_isv_boardsw; + } + if ((sc->tulip_features & TULIP_HAVE_ISVSROM) && tulip_srom_decode(sc)) { + if (sc->tulip_chipid != TULIP_21041) + sc->tulip_boardsw = &tulip_2114x_isv_boardsw; + + /* + * If the SROM specifies more than one adapter, tag this as a + * BASE rom. + */ + if (sc->tulip_rombuf[19] > 1) + sc->tulip_features |= TULIP_HAVE_BASEROM; + if (sc->tulip_boardsw == NULL) + return -6; + goto check_oui; + } + } + + + 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?) (well sometimes they put in a checksum so we'll + * start at 8). + */ + for (idx = 8; 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_enaddr, 6); + sc->tulip_features |= TULIP_HAVE_OKROM; + goto check_oui; + } else { + /* + * A number of makers of multiport boards (ZNYX and Cogent) + * only put on one address ROM on their 21040 boards. So + * if the ROM is all zeros (or all 0xFFs), look at the + * previous configured boards (as long as they are on the same + * PCI bus and the bus number is non-zero) until we find the + * master board with address ROM. We then use its address ROM + * as the base for this board. (we add our relative board + * to the last byte of its address). + */ + for (idx = 0; idx < sizeof(sc->tulip_rombuf); idx++) { + if (sc->tulip_rombuf[idx] != 0 && sc->tulip_rombuf[idx] != 0xFF) + break; + } + if (idx == sizeof(sc->tulip_rombuf)) { + int root_unit; + tulip_softc_t *root_sc = NULL; + for (root_unit = sc->tulip_unit - 1; root_unit >= 0; root_unit--) { + root_sc = tulips[root_unit]; + if (root_sc == NULL || (root_sc->tulip_features & (TULIP_HAVE_OKROM|TULIP_HAVE_SLAVEDROM)) == TULIP_HAVE_OKROM) + break; + root_sc = NULL; + } + if (root_sc != NULL && (root_sc->tulip_features & TULIP_HAVE_BASEROM) + && root_sc->tulip_chipid == sc->tulip_chipid + && root_sc->tulip_pci_busno == sc->tulip_pci_busno) { + sc->tulip_features |= TULIP_HAVE_SLAVEDROM; + sc->tulip_boardsw = root_sc->tulip_boardsw; + strcpy(sc->tulip_boardid, root_sc->tulip_boardid); + if (sc->tulip_boardsw->bd_type == TULIP_21140_ISV) { + bcopy(root_sc->tulip_rombuf, sc->tulip_rombuf, + sizeof(sc->tulip_rombuf)); + if (!tulip_srom_decode(sc)) + return -5; + } else { + bcopy(root_sc->tulip_enaddr, sc->tulip_enaddr, 6); + sc->tulip_enaddr[5] += sc->tulip_unit - root_sc->tulip_unit; + } + /* + * Now for a truly disgusting kludge: all 4 21040s on + * the ZX314 share the same INTA line so the mapping + * setup by the BIOS on the PCI bridge is worthless. + * Rather than reprogramming the value in the config + * register, we will handle this internally. + */ + if (root_sc->tulip_features & TULIP_HAVE_SHAREDINTR) { + sc->tulip_slaves = root_sc->tulip_slaves; + root_sc->tulip_slaves = sc; + sc->tulip_features |= TULIP_HAVE_SLAVEDINTR; + } + return 0; + } + } + } + + /* + * This is the standard DEC address ROM test. + */ + + 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_enaddr, 6); + + cksum = *(u_int16_t *) &sc->tulip_enaddr[0]; + cksum *= 2; + if (cksum > 65535) cksum -= 65535; + cksum += *(u_int16_t *) &sc->tulip_enaddr[2]; + if (cksum > 65535) cksum -= 65535; + cksum *= 2; + if (cksum > 65535) cksum -= 65535; + cksum += *(u_int16_t *) &sc->tulip_enaddr[4]; + if (cksum >= 65535) cksum -= 65535; + + rom_cksum = *(u_int16_t *) &sc->tulip_rombuf[6]; + + if (cksum != rom_cksum) + return -1; + + check_oui: + /* + * Check for various boards based on OUI. Did I say braindead? + */ + for (idx = 0; tulip_vendors[idx].vendor_identify_nic != NULL; idx++) { + if (bcmp(sc->tulip_enaddr, tulip_vendors[idx].vendor_oui, 3) == 0) { + (*tulip_vendors[idx].vendor_identify_nic)(sc); + break; + } + } + + sc->tulip_features |= TULIP_HAVE_OKROM; + return 0; +} + +static void +tulip_ifmedia_add( + tulip_softc_t * const sc) +{ + tulip_media_t media; + int medias = 0; + + for (media = TULIP_MEDIA_UNKNOWN; media < TULIP_MEDIA_MAX; media++) { + if (sc->tulip_mediums[media] != NULL) { + ifmedia_add(&sc->tulip_ifmedia, tulip_media_to_ifmedia[media], + 0, 0); + medias++; + } + } + if (medias == 0) { + sc->tulip_features |= TULIP_HAVE_NOMEDIA; + ifmedia_add(&sc->tulip_ifmedia, IFM_ETHER | IFM_NONE, 0, 0); + ifmedia_set(&sc->tulip_ifmedia, IFM_ETHER | IFM_NONE); + } else if (sc->tulip_media == TULIP_MEDIA_UNKNOWN) { + ifmedia_add(&sc->tulip_ifmedia, IFM_ETHER | IFM_AUTO, 0, 0); + ifmedia_set(&sc->tulip_ifmedia, IFM_ETHER | IFM_AUTO); + } else { + ifmedia_set(&sc->tulip_ifmedia, tulip_media_to_ifmedia[sc->tulip_media]); + sc->tulip_flags |= TULIP_PRINTMEDIA; + tulip_linkup(sc, sc->tulip_media); + } +} + +static int +tulip_ifmedia_change( + struct ifnet * const ifp) +{ + tulip_softc_t * const sc = (tulip_softc_t *)ifp->if_softc; + + sc->tulip_flags |= TULIP_NEEDRESET; + sc->tulip_probe_state = TULIP_PROBE_INACTIVE; + sc->tulip_media = TULIP_MEDIA_UNKNOWN; + if (IFM_SUBTYPE(sc->tulip_ifmedia.ifm_media) != IFM_AUTO) { + tulip_media_t media; + for (media = TULIP_MEDIA_UNKNOWN; media < TULIP_MEDIA_MAX; media++) { + if (sc->tulip_mediums[media] != NULL + && sc->tulip_ifmedia.ifm_media == tulip_media_to_ifmedia[media]) { + sc->tulip_flags |= TULIP_PRINTMEDIA; + sc->tulip_flags &= ~TULIP_DIDNWAY; + tulip_linkup(sc, media); + return 0; + } + } + } + sc->tulip_flags &= ~(TULIP_TXPROBE_ACTIVE|TULIP_WANTRXACT); + tulip_reset(sc); + tulip_init(sc); + return 0; +} + +/* + * Media status callback + */ +static void +tulip_ifmedia_status( + struct ifnet * const ifp, + struct ifmediareq *req) +{ + tulip_softc_t *sc = (tulip_softc_t *)ifp->if_softc; + + if (sc->tulip_media == TULIP_MEDIA_UNKNOWN) + return; + + req->ifm_status = IFM_AVALID; + if (sc->tulip_flags & TULIP_LINKUP) + req->ifm_status |= IFM_ACTIVE; + + req->ifm_active = tulip_media_to_ifmedia[sc->tulip_media]; +} + +static void +tulip_addr_filter( + tulip_softc_t * const sc) +{ + struct ifmultiaddr *ifma; + u_char *addrp; + int multicnt; + + sc->tulip_flags &= ~(TULIP_WANTHASHPERFECT|TULIP_WANTHASHONLY|TULIP_ALLMULTI); + sc->tulip_flags |= TULIP_WANTSETUP|TULIP_WANTTXSTART; + sc->tulip_cmdmode &= ~TULIP_CMD_RXRUN; + sc->tulip_intrmask &= ~TULIP_STS_RXSTOPPED; +#if defined(IFF_ALLMULTI) + if (sc->tulip_if.if_flags & IFF_ALLMULTI) + sc->tulip_flags |= TULIP_ALLMULTI ; +#endif + + multicnt = 0; + TAILQ_FOREACH(ifma, &sc->tulip_if.if_multiaddrs, ifma_link) { + + if (ifma->ifma_addr->sa_family == AF_LINK) + multicnt++; + } + + sc->tulip_if.if_start = tulip_ifstart; /* so the setup packet gets queued */ + if (multicnt > 14) { + u_int32_t *sp = sc->tulip_setupdata; + unsigned hash; + /* + * Some early passes of the 21140 have broken implementations of + * hash-perfect mode. When we get too many multicasts for perfect + * filtering with these chips, we need to switch into hash-only + * mode (this is better than all-multicast on network with lots + * of multicast traffic). + */ + if (sc->tulip_features & TULIP_HAVE_BROKEN_HASH) + sc->tulip_flags |= TULIP_WANTHASHONLY; + else + sc->tulip_flags |= TULIP_WANTHASHPERFECT; + /* + * 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)); + + TAILQ_FOREACH(ifma, &sc->tulip_if.if_multiaddrs, ifma_link) { + + if (ifma->ifma_addr->sa_family != AF_LINK) + continue; + + hash = tulip_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); +#if BYTE_ORDER == BIG_ENDIAN + sp[hash >> 4] |= bswap32(1 << (hash & 0xF)); +#else + sp[hash >> 4] |= 1 << (hash & 0xF); +#endif + } + /* + * No reason to use a hash if we are going to be + * receiving every multicast. + */ + if ((sc->tulip_flags & TULIP_ALLMULTI) == 0) { + hash = tulip_mchash(sc->tulip_if.if_broadcastaddr); +#if BYTE_ORDER == BIG_ENDIAN + sp[hash >> 4] |= bswap32(1 << (hash & 0xF)); +#else + sp[hash >> 4] |= 1 << (hash & 0xF); +#endif + if (sc->tulip_flags & TULIP_WANTHASHONLY) { + hash = tulip_mchash(sc->tulip_enaddr); +#if BYTE_ORDER == BIG_ENDIAN + sp[hash >> 4] |= bswap32(1 << (hash & 0xF)); +#else + sp[hash >> 4] |= 1 << (hash & 0xF); +#endif + } else { +#if BYTE_ORDER == BIG_ENDIAN + sp[39] = ((u_int16_t *) sc->tulip_enaddr)[0] << 16; + sp[40] = ((u_int16_t *) sc->tulip_enaddr)[1] << 16; + sp[41] = ((u_int16_t *) sc->tulip_enaddr)[2] << 16; +#else + sp[39] = ((u_int16_t *) sc->tulip_enaddr)[0]; + sp[40] = ((u_int16_t *) sc->tulip_enaddr)[1]; + sp[41] = ((u_int16_t *) sc->tulip_enaddr)[2]; +#endif + } + } + } + if ((sc->tulip_flags & (TULIP_WANTHASHPERFECT|TULIP_WANTHASHONLY)) == 0) { + u_int32_t *sp = sc->tulip_setupdata; + int idx = 0; + if ((sc->tulip_flags & TULIP_ALLMULTI) == 0) { + /* + * Else can get perfect filtering for 16 addresses. + */ + TAILQ_FOREACH(ifma, &sc->tulip_if.if_multiaddrs, ifma_link) { + if (ifma->ifma_addr->sa_family != AF_LINK) + continue; + addrp = LLADDR((struct sockaddr_dl *)ifma->ifma_addr); +#if BYTE_ORDER == BIG_ENDIAN + *sp++ = ((u_int16_t *) addrp)[0] << 16; + *sp++ = ((u_int16_t *) addrp)[1] << 16; + *sp++ = ((u_int16_t *) addrp)[2] << 16; +#else + *sp++ = ((u_int16_t *) addrp)[0]; + *sp++ = ((u_int16_t *) addrp)[1]; + *sp++ = ((u_int16_t *) addrp)[2]; +#endif + idx++; + } + /* + * Add the broadcast address. + */ + idx++; +#if BYTE_ORDER == BIG_ENDIAN + *sp++ = 0xFFFF << 16; + *sp++ = 0xFFFF << 16; + *sp++ = 0xFFFF << 16; +#else + *sp++ = 0xFFFF; + *sp++ = 0xFFFF; + *sp++ = 0xFFFF; +#endif + } + /* + * Pad the rest with our hardware address + */ + for (; idx < 16; idx++) { +#if BYTE_ORDER == BIG_ENDIAN + *sp++ = ((u_int16_t *) sc->tulip_enaddr)[0] << 16; + *sp++ = ((u_int16_t *) sc->tulip_enaddr)[1] << 16; + *sp++ = ((u_int16_t *) sc->tulip_enaddr)[2] << 16; +#else + *sp++ = ((u_int16_t *) sc->tulip_enaddr)[0]; + *sp++ = ((u_int16_t *) sc->tulip_enaddr)[1]; + *sp++ = ((u_int16_t *) sc->tulip_enaddr)[2]; +#endif + } + } +#if defined(IFF_ALLMULTI) + if (sc->tulip_flags & TULIP_ALLMULTI) + sc->tulip_if.if_flags |= IFF_ALLMULTI; +#endif +} + +static void +tulip_reset( + tulip_softc_t * const sc) +{ + tulip_ringinfo_t *ri; + tulip_desc_t *di; + u_int32_t inreset = (sc->tulip_flags & TULIP_INRESET); + + /* + * Brilliant. Simply brilliant. When switching modes/speeds + * on a 2114*, you need to set the appriopriate MII/PCS/SCL/PS + * bits in CSR6 and then do a software reset to get the 21140 + * to properly reset its internal pathways to the right places. + * Grrrr. + */ + if ((sc->tulip_flags & TULIP_DEVICEPROBE) == 0 + && sc->tulip_boardsw->bd_media_preset != NULL) + (*sc->tulip_boardsw->bd_media_preset)(sc); + + TULIP_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET); + DELAY(10); /* Wait 10 microseconds (actually 50 PCI cycles but at + 33MHz that comes to two microseconds but wait a + bit longer anyways) */ + + if (!inreset) { + sc->tulip_flags |= TULIP_INRESET; + sc->tulip_flags &= ~(TULIP_NEEDRESET|TULIP_RXBUFSLOW); + sc->tulip_if.if_flags &= ~IFF_OACTIVE; + sc->tulip_if.if_start = tulip_ifstart; + } + +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NOTX) + TULIP_CSR_WRITE(sc, csr_txlist, sc->tulip_txdescmap->dm_segs[0].ds_addr); +#else + TULIP_CSR_WRITE(sc, csr_txlist, TULIP_KVATOPHYS(sc, &sc->tulip_txinfo.ri_first[0])); +#endif +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX) + TULIP_CSR_WRITE(sc, csr_rxlist, sc->tulip_rxdescmap->dm_segs[0].ds_addr); +#else + TULIP_CSR_WRITE(sc, csr_rxlist, TULIP_KVATOPHYS(sc, &sc->tulip_rxinfo.ri_first[0])); +#endif + TULIP_CSR_WRITE(sc, csr_busmode, + (1 << (3 /*pci_max_burst_len*/ + 8)) + |TULIP_BUSMODE_CACHE_ALIGN8 + |TULIP_BUSMODE_READMULTIPLE + |(BYTE_ORDER != LITTLE_ENDIAN ? + TULIP_BUSMODE_DESC_BIGENDIAN : 0)); + + sc->tulip_txtimer = 0; + sc->tulip_txq.ifq_maxlen = TULIP_TXDESCS; + /* + * Free all the mbufs that were on the transmit ring. + */ + for (;;) { +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NOTX) + bus_dmamap_t map; +#endif + struct mbuf *m; + _IF_DEQUEUE(&sc->tulip_txq, m); + if (m == NULL) + break; +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NOTX) + map = M_GETCTX(m, bus_dmamap_t); + bus_dmamap_unload(sc->tulip_dmatag, map); + sc->tulip_txmaps[sc->tulip_txmaps_free++] = map; +#endif + 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; +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NOTX) + bus_dmamap_sync(sc->tulip_dmatag, sc->tulip_txdescmap, + 0, sc->tulip_txdescmap->dm_mapsize, + BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); +#endif + + /* + * 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; + } +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX) + bus_dmamap_sync(sc->tulip_dmatag, sc->tulip_rxdescmap, + 0, sc->tulip_rxdescmap->dm_mapsize, + BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); +#endif + for (;;) { +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX) + bus_dmamap_t map; +#endif + struct mbuf *m; + _IF_DEQUEUE(&sc->tulip_rxq, m); + if (m == NULL) + break; +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX) + map = M_GETCTX(m, bus_dmamap_t); + bus_dmamap_unload(sc->tulip_dmatag, map); + sc->tulip_rxmaps[sc->tulip_rxmaps_free++] = map; +#endif + m_freem(m); + } + + /* + * If tulip_reset is being called recurisvely, exit quickly knowing + * that when the outer tulip_reset returns all the right stuff will + * have happened. + */ + if (inreset) + return; + + sc->tulip_intrmask |= TULIP_STS_NORMALINTR|TULIP_STS_RXINTR|TULIP_STS_TXINTR + |TULIP_STS_ABNRMLINTR|TULIP_STS_SYSERROR|TULIP_STS_TXSTOPPED + |TULIP_STS_TXUNDERFLOW|TULIP_STS_TXBABBLE + |TULIP_STS_RXSTOPPED; + + if ((sc->tulip_flags & TULIP_DEVICEPROBE) == 0) + (*sc->tulip_boardsw->bd_media_select)(sc); +#if defined(TULIP_DEBUG) + if ((sc->tulip_flags & TULIP_NEEDRESET) == TULIP_NEEDRESET) + printf("%s%d: tulip_reset: additional reset needed?!?\n", + sc->tulip_name, sc->tulip_unit); +#endif + tulip_media_print(sc); + if (sc->tulip_features & TULIP_HAVE_DUALSENSE) + TULIP_CSR_WRITE(sc, csr_sia_status, TULIP_CSR_READ(sc, csr_sia_status)); + + sc->tulip_flags &= ~(TULIP_DOINGSETUP|TULIP_WANTSETUP|TULIP_INRESET + |TULIP_RXACT); + tulip_addr_filter(sc); +} + + +static void +tulip_ifinit( + void * sc) +{ + tulip_init((tulip_softc_t *)sc); +} + +static void +tulip_init( + tulip_softc_t * const sc) +{ + if (sc->tulip_if.if_flags & IFF_UP) { + if ((sc->tulip_if.if_flags & IFF_RUNNING) == 0) { + /* initialize the media */ + tulip_reset(sc); + } + sc->tulip_if.if_flags |= IFF_RUNNING; + if (sc->tulip_if.if_flags & IFF_PROMISC) { + sc->tulip_flags |= TULIP_PROMISC; + sc->tulip_cmdmode |= TULIP_CMD_PROMISCUOUS; + sc->tulip_intrmask |= TULIP_STS_TXINTR; + } else { + sc->tulip_flags &= ~TULIP_PROMISC; + sc->tulip_cmdmode &= ~TULIP_CMD_PROMISCUOUS; + if (sc->tulip_flags & TULIP_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_TXPROBE_ACTIVE|TULIP_WANTSETUP)) == 0) { + tulip_rx_intr(sc); + sc->tulip_cmdmode |= TULIP_CMD_RXRUN; + sc->tulip_intrmask |= TULIP_STS_RXSTOPPED; + } else { + sc->tulip_if.if_flags |= IFF_OACTIVE; + sc->tulip_cmdmode &= ~TULIP_CMD_RXRUN; + sc->tulip_intrmask &= ~TULIP_STS_RXSTOPPED; + } + TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask); + TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode); + if ((sc->tulip_flags & (TULIP_WANTSETUP|TULIP_TXPROBE_ACTIVE)) == TULIP_WANTSETUP) + tulip_txput_setup(sc); + } else { + sc->tulip_if.if_flags &= ~IFF_RUNNING; + tulip_reset(sc); + } +} + +static void +tulip_rx_intr( + tulip_softc_t * const sc) +{ + TULIP_PERFSTART(rxintr) + tulip_ringinfo_t * const ri = &sc->tulip_rxinfo; + struct ifnet * const ifp = &sc->tulip_if; + int fillok = 1; +#if defined(TULIP_DEBUG) + int cnt = 0; +#endif + + for (;;) { + TULIP_PERFSTART(rxget) + tulip_desc_t *eop = ri->ri_nextin; + int total_len = 0, last_offset = 0; + struct mbuf *ms = NULL, *me = NULL; + int accept = 0; +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX) + bus_dmamap_t map; + int error; +#endif + + if (fillok && sc->tulip_rxq.ifq_len < TULIP_RXQ_TARGET) + goto queue_mbuf; + +#if defined(TULIP_DEBUG) + if (cnt == ri->ri_max) + break; +#endif + /* + * If the TULIP has no descriptors, there can't be any receive + * descriptors to process. + */ + if (eop == ri->ri_nextout) + break; + + /* + * 90% of the packets will fit in one descriptor. So we optimize + * for that case. + */ + TULIP_RXDESC_POSTSYNC(sc, eop, sizeof(*eop)); + if ((((volatile tulip_desc_t *) eop)->d_status & (TULIP_DSTS_OWNER|TULIP_DSTS_RxFIRSTDESC|TULIP_DSTS_RxLASTDESC)) == (TULIP_DSTS_RxFIRSTDESC|TULIP_DSTS_RxLASTDESC)) { + _IF_DEQUEUE(&sc->tulip_rxq, ms); + me = ms; + } else { + /* + * If still owned by the TULIP, don't touch it. + */ + if (((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_OWNER) + break; + + /* + * It is possible (though improbable unless the BIG_PACKET support + * is enabled or MCLBYTES < 1518) for a received packet to cross + * more than one receive descriptor. + */ + while ((((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_RxLASTDESC) == 0) { + if (++eop == ri->ri_last) + eop = ri->ri_first; + TULIP_RXDESC_POSTSYNC(sc, eop, sizeof(*eop)); + if (eop == ri->ri_nextout || ((((volatile tulip_desc_t *) eop)->d_status & TULIP_DSTS_OWNER))) { +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_rxintrs++; + sc->tulip_dbg.dbg_rxpktsperintr[cnt]++; +#endif + TULIP_PERFEND(rxget); + TULIP_PERFEND(rxintr); + return; + } + total_len++; + } + + /* + * Dequeue the first buffer for the start of the packet. Hopefully + * this will be the only one we need to dequeue. However, if the + * packet consumed multiple descriptors, then we need to dequeue + * those buffers and chain to the starting mbuf. All buffers but + * the last buffer have the same length so we can set that now. + * (we add to last_offset instead of multiplying since we normally + * won't go into the loop and thereby saving ourselves from + * doing a multiplication by 0 in the normal case). + */ + _IF_DEQUEUE(&sc->tulip_rxq, ms); + for (me = ms; total_len > 0; total_len--) { +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX) + map = M_GETCTX(me, bus_dmamap_t); + TULIP_RXMAP_POSTSYNC(sc, map); + bus_dmamap_unload(sc->tulip_dmatag, map); + sc->tulip_rxmaps[sc->tulip_rxmaps_free++] = map; +#if defined(DIAGNOSTIC) + M_SETCTX(me, NULL); +#endif +#endif /* TULIP_BUS_DMA */ + me->m_len = TULIP_RX_BUFLEN; + last_offset += TULIP_RX_BUFLEN; + _IF_DEQUEUE(&sc->tulip_rxq, me->m_next); + me = me->m_next; + } + } + + /* + * Now get the size of received packet (minus the CRC). + */ + total_len = ((eop->d_status >> 16) & 0x7FFF) - 4; + if ((sc->tulip_flags & TULIP_RXIGNORE) == 0 + && ((eop->d_status & TULIP_DSTS_ERRSUM) == 0 +#ifdef BIG_PACKET + || (total_len <= sc->tulip_if.if_mtu + sizeof(struct ether_header) && + (eop->d_status & (TULIP_DSTS_RxBADLENGTH|TULIP_DSTS_RxRUNT| + TULIP_DSTS_RxCOLLSEEN|TULIP_DSTS_RxBADCRC| + TULIP_DSTS_RxOVERFLOW)) == 0) +#endif + )) { + me->m_len = total_len - last_offset; + +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX) + map = M_GETCTX(me, bus_dmamap_t); + bus_dmamap_sync(sc->tulip_dmatag, map, 0, me->m_len, + BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); + bus_dmamap_unload(sc->tulip_dmatag, map); + sc->tulip_rxmaps[sc->tulip_rxmaps_free++] = map; +#if defined(DIAGNOSTIC) + M_SETCTX(me, NULL); +#endif +#endif /* TULIP_BUS_DMA */ + +#ifndef __FreeBSD__ + if (sc->tulip_if.if_bpf != NULL) { + if (me == ms) + bpf_tap(&sc->tulip_if, mtod(ms, caddr_t), total_len); + else + bpf_mtap(&sc->tulip_if, ms); + } +#endif + sc->tulip_flags |= TULIP_RXACT; + accept = 1; + } else { + ifp->if_ierrors++; + if (eop->d_status & (TULIP_DSTS_RxBADLENGTH|TULIP_DSTS_RxOVERFLOW|TULIP_DSTS_RxWATCHDOG)) { + sc->tulip_dot3stats.dot3StatsInternalMacReceiveErrors++; + } else { +#if defined(TULIP_VERBOSE) + const char *error = NULL; +#endif + if (eop->d_status & TULIP_DSTS_RxTOOLONG) { + sc->tulip_dot3stats.dot3StatsFrameTooLongs++; +#if defined(TULIP_VERBOSE) + error = "frame too long"; +#endif + } + if (eop->d_status & TULIP_DSTS_RxBADCRC) { + if (eop->d_status & TULIP_DSTS_RxDRBBLBIT) { + sc->tulip_dot3stats.dot3StatsAlignmentErrors++; +#if defined(TULIP_VERBOSE) + error = "alignment error"; +#endif + } else { + sc->tulip_dot3stats.dot3StatsFCSErrors++; +#if defined(TULIP_VERBOSE) + error = "bad crc"; +#endif + } + } +#if defined(TULIP_VERBOSE) + if (error != NULL && (sc->tulip_flags & TULIP_NOMESSAGES) == 0) { + printf("%s%d: receive: %6D: %s\n", + sc->tulip_name, sc->tulip_unit, + mtod(ms, u_char *) + 6, ":", + error); + sc->tulip_flags |= TULIP_NOMESSAGES; + } +#endif + } + +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX) + map = M_GETCTX(me, bus_dmamap_t); + bus_dmamap_unload(sc->tulip_dmatag, map); + sc->tulip_rxmaps[sc->tulip_rxmaps_free++] = map; +#if defined(DIAGNOSTIC) + M_SETCTX(me, NULL); +#endif +#endif /* TULIP_BUS_DMA */ + } +#if defined(TULIP_DEBUG) + cnt++; +#endif + ifp->if_ipackets++; + if (++eop == ri->ri_last) + eop = ri->ri_first; + ri->ri_nextin = eop; + 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 it, send up it anyways. This may cause + * us to drop packets in the future but that's better than + * being caught in livelock. + * + * Note that if this packet crossed multiple descriptors + * we don't even try to reallocate all the mbufs here. + * Instead we rely on the test of the beginning of + * the loop to refill for the extra consumed mbufs. + */ + if (accept || ms == NULL) { + struct mbuf *m0; + MGETHDR(m0, M_DONTWAIT, MT_DATA); + if (m0 != NULL) { +#if defined(TULIP_COPY_RXDATA) + if (!accept || total_len >= (MHLEN - 2)) { +#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 defined(TULIP_COPY_RXDATA) + && m0 != NULL +#endif + ) { +#if !defined(TULIP_COPY_RXDATA) + ms->m_pkthdr.len = total_len; + ms->m_pkthdr.rcvif = ifp; + (*ifp->if_input)(ifp, ms); +#else +#ifdef BIG_PACKET +#error BIG_PACKET is incompatible with TULIP_COPY_RXDATA +#endif + m0->m_data += 2; /* align data after header */ + m_copydata(ms, 0, total_len, mtod(m0, caddr_t)); + m0->m_len = m0->m_pkthdr.len = total_len; + m0->m_pkthdr.rcvif = ifp; + (*ifp->if_input)(ifp, m0); + m0 = ms; +#endif /* ! TULIP_COPY_RXDATA */ + } + ms = m0; + } + if (ms == NULL) { + /* + * Couldn't allocate a new buffer. Don't bother + * trying to replenish the receive queue. + */ + fillok = 0; + sc->tulip_flags |= TULIP_RXBUFSLOW; +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_rxlowbufs++; +#endif + TULIP_PERFEND(rxget); + continue; + } + /* + * Now give the buffer(s) to the TULIP and save in our + * receive queue. + */ + do { + tulip_desc_t * const nextout = ri->ri_nextout; +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX) + if (sc->tulip_rxmaps_free > 0) { + map = sc->tulip_rxmaps[--sc->tulip_rxmaps_free]; + } else { + m_freem(ms); + sc->tulip_flags |= TULIP_RXBUFSLOW; +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_rxlowbufs++; +#endif + break; + } + M_SETCTX(ms, map); + error = bus_dmamap_load(sc->tulip_dmatag, map, mtod(ms, void *), + TULIP_RX_BUFLEN, NULL, BUS_DMA_NOWAIT); + if (error) { + printf("%s%d: unable to load rx map, " + "error = %d\n", sc->tulip_name, sc->tulip_unit, error); + panic("tulip_rx_intr"); /* XXX */ + } + nextout->d_addr1 = map->dm_segs[0].ds_addr; + nextout->d_length1 = map->dm_segs[0].ds_len; + if (map->dm_nsegs == 2) { + nextout->d_addr2 = map->dm_segs[1].ds_addr; + nextout->d_length2 = map->dm_segs[1].ds_len; + } else { + nextout->d_addr2 = 0; + nextout->d_length2 = 0; + } + TULIP_RXDESC_POSTSYNC(sc, nextout, sizeof(*nextout)); +#else /* TULIP_BUS_DMA */ + nextout->d_addr1 = TULIP_KVATOPHYS(sc, mtod(ms, caddr_t)); + nextout->d_length1 = TULIP_RX_BUFLEN; +#endif /* TULIP_BUS_DMA */ + nextout->d_status = TULIP_DSTS_OWNER; + TULIP_RXDESC_POSTSYNC(sc, nextout, sizeof(u_int32_t)); + if (++ri->ri_nextout == ri->ri_last) + ri->ri_nextout = ri->ri_first; + me = ms->m_next; + ms->m_next = NULL; + _IF_ENQUEUE(&sc->tulip_rxq, ms); + } while ((ms = me) != NULL); + + if (sc->tulip_rxq.ifq_len >= TULIP_RXQ_TARGET) + sc->tulip_flags &= ~TULIP_RXBUFSLOW; + TULIP_PERFEND(rxget); + } + +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_rxintrs++; + sc->tulip_dbg.dbg_rxpktsperintr[cnt]++; +#endif + TULIP_PERFEND(rxintr); +} + +static int +tulip_tx_intr( + tulip_softc_t * const sc) +{ + TULIP_PERFSTART(txintr) + tulip_ringinfo_t * const ri = &sc->tulip_txinfo; + struct mbuf *m; + int xmits = 0; + int descs = 0; + + while (ri->ri_free < ri->ri_max) { + u_int32_t d_flag; + + TULIP_TXDESC_POSTSYNC(sc, ri->ri_nextin, sizeof(*ri->ri_nextin)); + if (((volatile tulip_desc_t *) ri->ri_nextin)->d_status & TULIP_DSTS_OWNER) + break; + + ri->ri_free++; + descs++; + d_flag = ri->ri_nextin->d_flag; + if (d_flag & TULIP_DFLAG_TxLASTSEG) { + if (d_flag & TULIP_DFLAG_TxSETUPPKT) { + /* + * We've just finished processing a setup packet. + * Mark that we 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. + */ + TULIP_TXMAP_POSTSYNC(sc, sc->tulip_setupmap); + sc->tulip_flags &= ~(TULIP_DOINGSETUP|TULIP_HASHONLY); + if (ri->ri_nextin->d_flag & TULIP_DFLAG_TxINVRSFILT) + sc->tulip_flags |= TULIP_HASHONLY; + if ((sc->tulip_flags & (TULIP_WANTSETUP|TULIP_TXPROBE_ACTIVE)) == 0) { + tulip_rx_intr(sc); + sc->tulip_cmdmode |= TULIP_CMD_RXRUN; + sc->tulip_intrmask |= TULIP_STS_RXSTOPPED; + TULIP_CSR_WRITE(sc, csr_status, TULIP_STS_RXSTOPPED); + TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask); + TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode); + } + } else { + const u_int32_t d_status = ri->ri_nextin->d_status; + _IF_DEQUEUE(&sc->tulip_txq, m); + if (m != NULL) { +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NOTX) + bus_dmamap_t map = M_GETCTX(m, bus_dmamap_t); + TULIP_TXMAP_POSTSYNC(sc, map); + sc->tulip_txmaps[sc->tulip_txmaps_free++] = map; +#endif /* TULIP_BUS_DMA */ + m_freem(m); +#if defined(TULIP_DEBUG) + } else { + printf("%s%d: tx_intr: failed to dequeue mbuf?!?\n", + sc->tulip_name, sc->tulip_unit); +#endif + } + if (sc->tulip_flags & TULIP_TXPROBE_ACTIVE) { + tulip_mediapoll_event_t event = TULIP_MEDIAPOLL_TXPROBE_OK; + if (d_status & (TULIP_DSTS_TxNOCARR|TULIP_DSTS_TxEXCCOLL)) { +#if defined(TULIP_DEBUG) + if (d_status & TULIP_DSTS_TxNOCARR) + sc->tulip_dbg.dbg_txprobe_nocarr++; + if (d_status & TULIP_DSTS_TxEXCCOLL) + sc->tulip_dbg.dbg_txprobe_exccoll++; +#endif + event = TULIP_MEDIAPOLL_TXPROBE_FAILED; + } + (*sc->tulip_boardsw->bd_media_poll)(sc, event); + /* + * Escape from the loop before media poll has reset the TULIP! + */ + break; + } else { + xmits++; + if (d_status & TULIP_DSTS_ERRSUM) { + sc->tulip_if.if_oerrors++; + if (d_status & TULIP_DSTS_TxEXCCOLL) + sc->tulip_dot3stats.dot3StatsExcessiveCollisions++; + if (d_status & TULIP_DSTS_TxLATECOLL) + sc->tulip_dot3stats.dot3StatsLateCollisions++; + if (d_status & (TULIP_DSTS_TxNOCARR|TULIP_DSTS_TxCARRLOSS)) + sc->tulip_dot3stats.dot3StatsCarrierSenseErrors++; + if (d_status & (TULIP_DSTS_TxUNDERFLOW|TULIP_DSTS_TxBABBLE)) + sc->tulip_dot3stats.dot3StatsInternalMacTransmitErrors++; + if (d_status & TULIP_DSTS_TxUNDERFLOW) + sc->tulip_dot3stats.dot3StatsInternalTransmitUnderflows++; + if (d_status & TULIP_DSTS_TxBABBLE) + sc->tulip_dot3stats.dot3StatsInternalTransmitBabbles++; + } else { + u_int32_t collisions = + (d_status & TULIP_DSTS_TxCOLLMASK) + >> TULIP_DSTS_V_TxCOLLCNT; + sc->tulip_if.if_collisions += collisions; + if (collisions == 1) + sc->tulip_dot3stats.dot3StatsSingleCollisionFrames++; + else if (collisions > 1) + sc->tulip_dot3stats.dot3StatsMultipleCollisionFrames++; + else if (d_status & TULIP_DSTS_TxDEFERRED) + sc->tulip_dot3stats.dot3StatsDeferredTransmissions++; + /* + * SQE is only valid for 10baseT/BNC/AUI when not + * running in full-duplex. In order to speed up the + * test, the corresponding bit in tulip_flags needs to + * set as well to get us to count SQE Test Errors. + */ + if (d_status & TULIP_DSTS_TxNOHRTBT & sc->tulip_flags) + sc->tulip_dot3stats.dot3StatsSQETestErrors++; + } + } + } + } + + if (++ri->ri_nextin == ri->ri_last) + ri->ri_nextin = ri->ri_first; + + if ((sc->tulip_flags & TULIP_TXPROBE_ACTIVE) == 0) + sc->tulip_if.if_flags &= ~IFF_OACTIVE; + } + /* + * If nothing left to transmit, disable the timer. + * Else if progress, reset the timer back to 2 ticks. + */ + if (ri->ri_free == ri->ri_max || (sc->tulip_flags & TULIP_TXPROBE_ACTIVE)) + sc->tulip_txtimer = 0; + else if (xmits > 0) + sc->tulip_txtimer = TULIP_TXTIMER; + sc->tulip_if.if_opackets += xmits; + TULIP_PERFEND(txintr); + return descs; +} + +static void +tulip_print_abnormal_interrupt( + tulip_softc_t * const sc, + u_int32_t csr) +{ + const char * const *msgp = tulip_status_bits; + const char *sep; + u_int32_t mask; + const char thrsh[] = "72|128\0\0\0" "96|256\0\0\0" "128|512\0\0" "160|1024"; + + csr &= (1 << (sizeof(tulip_status_bits)/sizeof(tulip_status_bits[0]))) - 1; + printf("%s%d: abnormal interrupt:", sc->tulip_name, sc->tulip_unit); + for (sep = " ", mask = 1; mask <= csr; mask <<= 1, msgp++) { + if ((csr & mask) && *msgp != NULL) { + printf("%s%s", sep, *msgp); + if (mask == TULIP_STS_TXUNDERFLOW && (sc->tulip_flags & TULIP_NEWTXTHRESH)) { + sc->tulip_flags &= ~TULIP_NEWTXTHRESH; + if (sc->tulip_cmdmode & TULIP_CMD_STOREFWD) { + printf(" (switching to store-and-forward mode)"); + } else { + printf(" (raising TX threshold to %s)", + &thrsh[9 * ((sc->tulip_cmdmode & TULIP_CMD_THRESHOLDCTL) >> 14)]); + } + } + sep = ", "; + } + } + printf("\n"); +} + +static void +tulip_intr_handler( + tulip_softc_t * const sc, + int *progress_p) +{ + TULIP_PERFSTART(intr) + u_int32_t csr; + + while ((csr = TULIP_CSR_READ(sc, csr_status)) & sc->tulip_intrmask) { + *progress_p = 1; + TULIP_CSR_WRITE(sc, csr_status, csr); + + if (csr & TULIP_STS_SYSERROR) { + sc->tulip_last_system_error = (csr & TULIP_STS_ERRORMASK) >> TULIP_STS_ERR_SHIFT; + if (sc->tulip_flags & TULIP_NOMESSAGES) { + sc->tulip_flags |= TULIP_SYSTEMERROR; + } else { + printf("%s%d: system error: %s\n", + sc->tulip_name, sc->tulip_unit, + tulip_system_errors[sc->tulip_last_system_error]); + } + sc->tulip_flags |= TULIP_NEEDRESET; + sc->tulip_system_errors++; + break; + } + if (csr & (TULIP_STS_LINKPASS|TULIP_STS_LINKFAIL) & sc->tulip_intrmask) { +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_link_intrs++; +#endif + if (sc->tulip_boardsw->bd_media_poll != NULL) { + (*sc->tulip_boardsw->bd_media_poll)(sc, csr & TULIP_STS_LINKFAIL + ? TULIP_MEDIAPOLL_LINKFAIL + : TULIP_MEDIAPOLL_LINKPASS); + csr &= ~TULIP_STS_ABNRMLINTR; + } + tulip_media_print(sc); + } + if (csr & (TULIP_STS_RXINTR|TULIP_STS_RXNOBUF)) { + u_int32_t misses = TULIP_CSR_READ(sc, csr_missed_frames); + if (csr & TULIP_STS_RXNOBUF) + sc->tulip_dot3stats.dot3StatsMissedFrames += misses & 0xFFFF; + /* + * Pass 2.[012] of the 21140A-A[CDE] may hang and/or corrupt data + * on receive overflows. + */ + if ((misses & 0x0FFE0000) && (sc->tulip_features & TULIP_HAVE_RXBADOVRFLW)) { + sc->tulip_dot3stats.dot3StatsInternalMacReceiveErrors++; + /* + * Stop the receiver process and spin until it's stopped. + * Tell rx_intr to drop the packets it dequeues. + */ + TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode & ~TULIP_CMD_RXRUN); + while ((TULIP_CSR_READ(sc, csr_status) & TULIP_STS_RXSTOPPED) == 0) + ; + TULIP_CSR_WRITE(sc, csr_status, TULIP_STS_RXSTOPPED); + sc->tulip_flags |= TULIP_RXIGNORE; + } + tulip_rx_intr(sc); + if (sc->tulip_flags & TULIP_RXIGNORE) { + /* + * Restart the receiver. + */ + sc->tulip_flags &= ~TULIP_RXIGNORE; + TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode); + } + } + if (csr & TULIP_STS_ABNRMLINTR) { + u_int32_t tmp = csr & sc->tulip_intrmask + & ~(TULIP_STS_NORMALINTR|TULIP_STS_ABNRMLINTR); + if (csr & TULIP_STS_TXUNDERFLOW) { + if ((sc->tulip_cmdmode & TULIP_CMD_THRESHOLDCTL) != TULIP_CMD_THRSHLD160) { + sc->tulip_cmdmode += TULIP_CMD_THRSHLD96; + sc->tulip_flags |= TULIP_NEWTXTHRESH; + } else if (sc->tulip_features & TULIP_HAVE_STOREFWD) { + sc->tulip_cmdmode |= TULIP_CMD_STOREFWD; + sc->tulip_flags |= TULIP_NEWTXTHRESH; + } + } + if (sc->tulip_flags & TULIP_NOMESSAGES) { + sc->tulip_statusbits |= tmp; + } else { + tulip_print_abnormal_interrupt(sc, tmp); + sc->tulip_flags |= TULIP_NOMESSAGES; + } + TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode); + } + if (sc->tulip_flags & (TULIP_WANTTXSTART|TULIP_TXPROBE_ACTIVE|TULIP_DOINGSETUP|TULIP_PROMISC)) { + tulip_tx_intr(sc); + if ((sc->tulip_flags & TULIP_TXPROBE_ACTIVE) == 0) + tulip_ifstart(&sc->tulip_if); + } + } + if (sc->tulip_flags & TULIP_NEEDRESET) { + tulip_reset(sc); + tulip_init(sc); + } + TULIP_PERFEND(intr); +} + +#if defined(TULIP_USE_SOFTINTR) +/* + * This is an experimental idea to alleviate problems due to interrupt + * livelock. What is interrupt livelock? It's when you spend all your + * time servicing device interrupts and never drop below device ipl + * to do "useful" work. + * + * So what we do here is see if the device needs service and if so, + * disable interrupts (dismiss the interrupt), place it in a list of devices + * needing service, and issue a network software interrupt. + * + * When our network software interrupt routine gets called, we simply + * walk done the list of devices that we have created and deal with them + * at splnet/splsoftnet. + * + */ +static void +tulip_hardintr_handler( + tulip_softc_t * const sc, + int *progress_p) +{ + if (TULIP_CSR_READ(sc, csr_status) & (TULIP_STS_NORMALINTR|TULIP_STS_ABNRMLINTR) == 0) + return; + *progress_p = 1; + /* + * disable interrupts + */ + TULIP_CSR_WRITE(sc, csr_intr, 0); + /* + * mark it as needing a software interrupt + */ + tulip_softintr_mask |= (1U << sc->tulip_unit); +} + +static void +tulip_softintr( + void) +{ + u_int32_t softintr_mask, mask; + int progress = 0; + int unit; + int s; + + /* + * Copy mask to local copy and reset global one to 0. + */ + s = splimp(); + softintr_mask = tulip_softintr_mask; + tulip_softintr_mask = 0; + splx(s); + + /* + * Optimize for the single unit case. + */ + if (tulip_softintr_max_unit == 0) { + if (softintr_mask & 1) { + tulip_softc_t * const sc = tulips[0]; + /* + * Handle the "interrupt" and then reenable interrupts + */ + softintr_mask = 0; + tulip_intr_handler(sc, &progress); + TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask); + } + return; + } + + /* + * Handle all "queued" interrupts in a round robin fashion. + * This is done so as not to favor a particular interface. + */ + unit = tulip_softintr_last_unit; + mask = (1U << unit); + while (softintr_mask != 0) { + if (tulip_softintr_max_unit == unit) { + unit = 0; mask = 1; + } else { + unit += 1; mask <<= 1; + } + if (softintr_mask & mask) { + tulip_softc_t * const sc = tulips[unit]; + /* + * Handle the "interrupt" and then reenable interrupts + */ + softintr_mask ^= mask; + tulip_intr_handler(sc, &progress); + TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask); + } + } + + /* + * Save where we ending up. + */ + tulip_softintr_last_unit = unit; +} +#endif /* TULIP_USE_SOFTINTR */ + +static void +tulip_intr_shared( + void *arg) +{ + tulip_softc_t * sc = arg; + int progress = 0; + + for (; sc != NULL; sc = sc->tulip_slaves) { +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_intrs++; +#endif +#if defined(TULIP_USE_SOFTINTR) + tulip_hardintr_handler(sc, &progress); +#else + tulip_intr_handler(sc, &progress); +#endif + } +#if defined(TULIP_USE_SOFTINTR) + if (progress) + schednetisr(NETISR_DE); +#endif +} + +static void +tulip_intr_normal( + void *arg) +{ + tulip_softc_t * sc = (tulip_softc_t *) arg; + int progress = 0; + +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_intrs++; +#endif +#if defined(TULIP_USE_SOFTINTR) + tulip_hardintr_handler(sc, &progress); + if (progress) + schednetisr(NETISR_DE); +#else + tulip_intr_handler(sc, &progress); +#endif +} + +static struct mbuf * +tulip_mbuf_compress( + struct mbuf *m) +{ + struct mbuf *m0; +#if MCLBYTES >= ETHERMTU + 18 && !defined(BIG_PACKET) + 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); + return NULL; + } + } + m_copydata(m, 0, m->m_pkthdr.len, mtod(m0, caddr_t)); + m0->m_pkthdr.len = m0->m_len = m->m_pkthdr.len; + } +#else + int mlen = MHLEN; + int len = m->m_pkthdr.len; + struct mbuf **mp = &m0; + + while (len > 0) { + if (mlen == MHLEN) { + MGETHDR(*mp, M_DONTWAIT, MT_DATA); + } else { + MGET(*mp, M_DONTWAIT, MT_DATA); + } + if (*mp == NULL) { + m_freem(m0); + m0 = NULL; + break; + } + if (len > MLEN) { + MCLGET(*mp, M_DONTWAIT); + if (((*mp)->m_flags & M_EXT) == 0) { + m_freem(m0); + m0 = NULL; + break; + } + (*mp)->m_len = len <= MCLBYTES ? len : MCLBYTES; + } else { + (*mp)->m_len = len <= mlen ? len : mlen; + } + m_copydata(m, m->m_pkthdr.len - len, + (*mp)->m_len, mtod((*mp), caddr_t)); + len -= (*mp)->m_len; + mp = &(*mp)->m_next; + mlen = MLEN; + } +#endif + m_freem(m); + return m0; +} + +static struct mbuf * +tulip_txput( + tulip_softc_t * const sc, + struct mbuf *m) +{ + TULIP_PERFSTART(txput) + tulip_ringinfo_t * const ri = &sc->tulip_txinfo; + tulip_desc_t *eop, *nextout; + int segcnt, free; + u_int32_t d_status; +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NOTX) + bus_dmamap_t map; + int error; +#else + struct mbuf *m0; +#endif + +#if defined(TULIP_DEBUG) + if ((sc->tulip_cmdmode & TULIP_CMD_TXRUN) == 0) { + printf("%s%d: txput%s: tx not running\n", + sc->tulip_name, sc->tulip_unit, + (sc->tulip_flags & TULIP_TXPROBE_ACTIVE) ? "(probe)" : ""); + sc->tulip_flags |= TULIP_WANTTXSTART; + sc->tulip_dbg.dbg_txput_finishes[0]++; + goto finish; + } +#endif + + /* + * 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. + */ +#if !defined(TULIP_BUS_DMA) || defined(TULIP_BUS_DMA_NOTX) + again: + m0 = m; +#endif + d_status = 0; + eop = nextout = ri->ri_nextout; + segcnt = 0; + free = ri->ri_free; + +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NOTX) + /* + * Reclaim some dma maps from if we are out. + */ + if (sc->tulip_txmaps_free == 0) { +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_no_txmaps++; +#endif + free += tulip_tx_intr(sc); + } + if (sc->tulip_txmaps_free > 0) { + map = sc->tulip_txmaps[sc->tulip_txmaps_free-1]; + } else { + sc->tulip_flags |= TULIP_WANTTXSTART; +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_txput_finishes[1]++; +#endif + goto finish; + } + error = bus_dmamap_load_mbuf(sc->tulip_dmatag, map, m, BUS_DMA_NOWAIT); + if (error != 0) { + if (error == EFBIG) { + /* + * The packet exceeds the number of transmit buffer + * entries that we can use for one packet, so we have + * to recopy it into one mbuf and then try again. + */ + m = tulip_mbuf_compress(m); + if (m == NULL) { +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_txput_finishes[2]++; +#endif + goto finish; + } + error = bus_dmamap_load_mbuf(sc->tulip_dmatag, map, m, BUS_DMA_NOWAIT); + } + if (error != 0) { + printf("%s%d: unable to load tx map, " + "error = %d\n", sc->tulip_name, sc->tulip_unit, error); +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_txput_finishes[3]++; +#endif + goto finish; + } + } + if ((free -= (map->dm_nsegs + 1) / 2) <= 0 + /* + * See if there's any unclaimed space in the transmit ring. + */ + && (free += tulip_tx_intr(sc)) <= 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. + */ + sc->tulip_flags |= TULIP_WANTTXSTART; +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_txput_finishes[4]++; +#endif + bus_dmamap_unload(sc->tulip_dmatag, map); + goto finish; + } + for (; map->dm_nsegs - segcnt > 1; segcnt += 2) { + eop = nextout; + eop->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN; + eop->d_status = d_status; + eop->d_addr1 = map->dm_segs[segcnt].ds_addr; + eop->d_length1 = map->dm_segs[segcnt].ds_len; + eop->d_addr2 = map->dm_segs[segcnt+1].ds_addr; + eop->d_length2 = map->dm_segs[segcnt+1].ds_len; + d_status = TULIP_DSTS_OWNER; + if (++nextout == ri->ri_last) + nextout = ri->ri_first; + } + if (segcnt < map->dm_nsegs) { + eop = nextout; + eop->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN; + eop->d_status = d_status; + eop->d_addr1 = map->dm_segs[segcnt].ds_addr; + eop->d_length1 = map->dm_segs[segcnt].ds_len; + eop->d_addr2 = 0; + eop->d_length2 = 0; + if (++nextout == ri->ri_last) + nextout = ri->ri_first; + } + TULIP_TXMAP_PRESYNC(sc, map); + M_SETCTX(m, map); + map = NULL; + --sc->tulip_txmaps_free; /* commit to using the dmamap */ + +#else /* !TULIP_BUS_DMA */ + + do { + int len = m0->m_len; + caddr_t addr = mtod(m0, caddr_t); + unsigned clsize = PAGE_SIZE - (((uintptr_t) addr) & (PAGE_SIZE-1)); + + while (len > 0) { + unsigned slen = min(len, clsize); +#ifdef BIG_PACKET + int partial = 0; + if (slen >= 2048) + slen = 2040, partial = 1; +#endif + segcnt++; + if (segcnt > TULIP_MAX_TXSEG) { + /* + * 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. + */ + m = tulip_mbuf_compress(m); + if (m == NULL) + goto finish; + goto again; + } + if (segcnt & 1) { + if (--free == 0) { + /* + * See if there's any unclaimed space in the + * transmit ring. + */ + if ((free += tulip_tx_intr(sc)) == 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. + */ + sc->tulip_flags |= TULIP_WANTTXSTART; +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_txput_finishes[1]++; +#endif + goto finish; + } + } + 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 = TULIP_KVATOPHYS(sc, addr); + eop->d_length1 = slen; + } else { + /* + * Fill in second half of descriptor + */ + eop->d_addr2 = TULIP_KVATOPHYS(sc, addr); + eop->d_length2 = slen; + } + d_status = TULIP_DSTS_OWNER; + len -= slen; + addr += slen; +#ifdef BIG_PACKET + if (partial) + continue; +#endif + clsize = PAGE_SIZE; + } + } while ((m0 = m0->m_next) != NULL); +#endif /* TULIP_BUS_DMA */ + + /* + * bounce a copy to the bpf listener, if any. + */ + BPF_MTAP(&sc->tulip_if, m); + + /* + * The descriptors have been filled in. Now get ready + * to transmit. + */ + _IF_ENQUEUE(&sc->tulip_txq, m); + m = NULL; + + /* + * 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; + TULIP_TXDESC_PRESYNC(sc, nextout, sizeof(u_int32_t)); + +#if !defined(TULIP_BUS_DMA) || defined(TULIP_BUS_DMA_NOTX) + /* + * 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; + } +#endif /* TULIP_BUS_DMA */ + + /* + * Mark the last and first segments, indicate we want a transmit + * complete interrupt, 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; +#if defined(TULIP_BUS_MAP) && !defined(TULIP_BUS_DMA_NOTX) + if (eop < ri->ri_nextout) { + TULIP_TXDESC_PRESYNC(sc, ri->ri_nextout, + (caddr_t) ri->ri_last - (caddr_t) ri->ri_nextout); + TULIP_TXDESC_PRESYNC(sc, ri->ri_first, + (caddr_t) (eop + 1) - (caddr_t) ri->ri_first); + } else { + TULIP_TXDESC_PRESYNC(sc, ri->ri_nextout, + (caddr_t) (eop + 1) - (caddr_t) ri->ri_nextout); + } +#endif + ri->ri_nextout->d_status = TULIP_DSTS_OWNER; + TULIP_TXDESC_PRESYNC(sc, ri->ri_nextout, sizeof(u_int32_t)); + + /* + * This advances the ring for us. + */ + ri->ri_nextout = nextout; + ri->ri_free = free; + + TULIP_PERFEND(txput); + + if (sc->tulip_flags & TULIP_TXPROBE_ACTIVE) { + TULIP_CSR_WRITE(sc, csr_txpoll, 1); + sc->tulip_if.if_flags |= IFF_OACTIVE; + sc->tulip_if.if_start = tulip_ifstart; + TULIP_PERFEND(txput); + return NULL; + } + + /* + * switch back to the single queueing ifstart. + */ + sc->tulip_flags &= ~TULIP_WANTTXSTART; + if (sc->tulip_txtimer == 0) + sc->tulip_txtimer = TULIP_TXTIMER; +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_txput_finishes[5]++; +#endif + + /* + * If we want a txstart, there must be not enough space in the + * transmit ring. So we want to enable transmit done interrupts + * so we can immediately reclaim some space. When the transmit + * interrupt is posted, the interrupt handler will call tx_intr + * to reclaim space and then txstart (since WANTTXSTART is set). + * txstart will move the packet into the transmit ring and clear + * WANTTXSTART thereby causing TXINTR to be cleared. + */ + finish: +#if defined(TULIP_DEBUG) + sc->tulip_dbg.dbg_txput_finishes[6]++; +#endif + if (sc->tulip_flags & (TULIP_WANTTXSTART|TULIP_DOINGSETUP)) { + sc->tulip_if.if_flags |= IFF_OACTIVE; + sc->tulip_if.if_start = tulip_ifstart; + if ((sc->tulip_intrmask & TULIP_STS_TXINTR) == 0) { + sc->tulip_intrmask |= TULIP_STS_TXINTR; + TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask); + } + } else if ((sc->tulip_flags & TULIP_PROMISC) == 0) { + if (sc->tulip_intrmask & TULIP_STS_TXINTR) { + sc->tulip_intrmask &= ~TULIP_STS_TXINTR; + TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask); + } + } + TULIP_CSR_WRITE(sc, csr_txpoll, 1); + TULIP_PERFEND(txput); + return m; +} + +static void +tulip_txput_setup( + tulip_softc_t * const sc) +{ + tulip_ringinfo_t * const ri = &sc->tulip_txinfo; + tulip_desc_t *nextout; + + /* + * We will transmit, at most, one setup packet per call to ifstart. + */ + +#if defined(TULIP_DEBUG) + if ((sc->tulip_cmdmode & TULIP_CMD_TXRUN) == 0) { + printf("%s%d: txput_setup: tx not running\n", + sc->tulip_name, sc->tulip_unit); + sc->tulip_flags |= TULIP_WANTTXSTART; + sc->tulip_if.if_start = tulip_ifstart; + return; + } +#endif + /* + * Try to reclaim some free descriptors.. + */ + if (ri->ri_free < 2) + tulip_tx_intr(sc); + if ((sc->tulip_flags & TULIP_DOINGSETUP) || ri->ri_free == 1) { + sc->tulip_flags |= TULIP_WANTTXSTART; + sc->tulip_if.if_start = tulip_ifstart; + return; + } + bcopy(sc->tulip_setupdata, sc->tulip_setupbuf, + sizeof(sc->tulip_setupbuf)); + /* + * Clear WANTSETUP and set DOINGSETUP. Set know that WANTSETUP is + * set and DOINGSETUP is clear doing an XOR of the two will DTRT. + */ + sc->tulip_flags ^= TULIP_WANTSETUP|TULIP_DOINGSETUP; + ri->ri_free--; + nextout = ri->ri_nextout; + nextout->d_flag &= TULIP_DFLAG_ENDRING|TULIP_DFLAG_CHAIN; + nextout->d_flag |= TULIP_DFLAG_TxFIRSTSEG|TULIP_DFLAG_TxLASTSEG + |TULIP_DFLAG_TxSETUPPKT|TULIP_DFLAG_TxWANTINTR; + if (sc->tulip_flags & TULIP_WANTHASHPERFECT) + nextout->d_flag |= TULIP_DFLAG_TxHASHFILT; + else if (sc->tulip_flags & TULIP_WANTHASHONLY) + nextout->d_flag |= TULIP_DFLAG_TxHASHFILT|TULIP_DFLAG_TxINVRSFILT; + + nextout->d_length2 = 0; + nextout->d_addr2 = 0; +#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NOTX) + nextout->d_length1 = sc->tulip_setupmap->dm_segs[0].ds_len; + nextout->d_addr1 = sc->tulip_setupmap->dm_segs[0].ds_addr; + if (sc->tulip_setupmap->dm_nsegs == 2) { + nextout->d_length2 = sc->tulip_setupmap->dm_segs[1].ds_len; + nextout->d_addr2 = sc->tulip_setupmap->dm_segs[1].ds_addr; + } + TULIP_TXMAP_PRESYNC(sc, sc->tulip_setupmap); + TULIP_TXDESC_PRESYNC(sc, nextout, sizeof(*nextout)); +#else + nextout->d_length1 = sizeof(sc->tulip_setupbuf); + nextout->d_addr1 = TULIP_KVATOPHYS(sc, sc->tulip_setupbuf); +#endif + + /* + * 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; + TULIP_TXDESC_PRESYNC(sc, ri->ri_nextout, sizeof(u_int32_t)); + nextout->d_status = TULIP_DSTS_OWNER; + /* + * Flush the ownwership of the current descriptor + */ + TULIP_TXDESC_PRESYNC(sc, nextout, sizeof(u_int32_t)); + TULIP_CSR_WRITE(sc, csr_txpoll, 1); + if ((sc->tulip_intrmask & TULIP_STS_TXINTR) == 0) { + sc->tulip_intrmask |= TULIP_STS_TXINTR; + TULIP_CSR_WRITE(sc, csr_intr, sc->tulip_intrmask); + } +} + + +/* + * This routine is entered at splnet() (splsoftnet() on NetBSD) + * and thereby imposes no problems when TULIP_USE_SOFTINTR is + * defined or not. + */ +static int +tulip_ifioctl( + struct ifnet * ifp, + u_long cmd, + caddr_t data) +{ + TULIP_PERFSTART(ifioctl) + tulip_softc_t * const sc = (tulip_softc_t *)ifp->if_softc; + struct ifreq *ifr = (struct ifreq *) data; + int s; + int error = 0; + +#if defined(TULIP_USE_SOFTINTR) + s = splnet(); +#else + s = splimp(); +#endif + switch (cmd) { + case SIOCSIFFLAGS: { + tulip_addr_filter(sc); /* reinit multicast filter */ + tulip_init(sc); + break; + } + + case SIOCSIFMEDIA: + case SIOCGIFMEDIA: { + error = ifmedia_ioctl(ifp, ifr, &sc->tulip_ifmedia, cmd); + break; + } + + case SIOCADDMULTI: + case SIOCDELMULTI: { + /* + * Update multicast listeners + */ + tulip_addr_filter(sc); /* reset multicast filtering */ + tulip_init(sc); + error = 0; + break; + } + + case SIOCSIFMTU: + /* + * Set the interface MTU. + */ + if (ifr->ifr_mtu > ETHERMTU +#ifdef BIG_PACKET + && sc->tulip_chipid != TULIP_21140 + && sc->tulip_chipid != TULIP_21140A + && sc->tulip_chipid != TULIP_21041 +#endif + ) { + error = EINVAL; + break; + } + ifp->if_mtu = ifr->ifr_mtu; +#ifdef BIG_PACKET + tulip_reset(sc); + tulip_init(sc); +#endif + break; + +#ifdef SIOCGADDRROM + case SIOCGADDRROM: { + error = copyout(sc->tulip_rombuf, ifr->ifr_data, sizeof(sc->tulip_rombuf)); + break; + } +#endif +#ifdef SIOCGCHIPID + case SIOCGCHIPID: { + ifr->ifr_metric = (int) sc->tulip_chipid; + break; + } +#endif + default: { + error = ether_ioctl(ifp, cmd, data); + break; + } + } + + splx(s); + TULIP_PERFEND(ifioctl); + return error; +} + +/* + * These routines gets called at device spl (from ether_output). This might + * pose a problem for TULIP_USE_SOFTINTR if ether_output is called at + * device spl from another driver. + */ + +static void +tulip_ifstart( + struct ifnet * const ifp) +{ + TULIP_PERFSTART(ifstart) + tulip_softc_t * const sc = (tulip_softc_t *)ifp->if_softc; + + if (sc->tulip_if.if_flags & IFF_RUNNING) { + + if ((sc->tulip_flags & (TULIP_WANTSETUP|TULIP_TXPROBE_ACTIVE)) == TULIP_WANTSETUP) + tulip_txput_setup(sc); + + while (sc->tulip_if.if_snd.ifq_head != NULL) { + struct mbuf *m; + IF_DEQUEUE(&sc->tulip_if.if_snd, m); + if ((m = tulip_txput(sc, m)) != NULL) { + IF_PREPEND(&sc->tulip_if.if_snd, m); + break; + } + } + if (sc->tulip_if.if_snd.ifq_head == NULL) + sc->tulip_if.if_start = tulip_ifstart_one; + } + + TULIP_PERFEND(ifstart); +} + +static void +tulip_ifstart_one( + struct ifnet * const ifp) +{ + TULIP_PERFSTART(ifstart_one) + tulip_softc_t * const sc = (tulip_softc_t *)ifp->if_softc; + + if ((sc->tulip_if.if_flags & IFF_RUNNING) + && sc->tulip_if.if_snd.ifq_head != NULL) { + struct mbuf *m; + IF_DEQUEUE(&sc->tulip_if.if_snd, m); + if ((m = tulip_txput(sc, m)) != NULL) + IF_PREPEND(&sc->tulip_if.if_snd, m); + } + TULIP_PERFEND(ifstart_one); +} + +/* + * Even though this routine runs at device spl, it does not break + * our use of splnet (splsoftnet under NetBSD) for the majority + * of this driver (if TULIP_USE_SOFTINTR defined) since + * if_watcbog is called from if_watchdog which is called from + * splsoftclock which is below spl[soft]net. + */ +static void +tulip_ifwatchdog( + struct ifnet *ifp) +{ + TULIP_PERFSTART(ifwatchdog) + tulip_softc_t * const sc = (tulip_softc_t *)ifp->if_softc; + +#if defined(TULIP_DEBUG) + u_int32_t rxintrs = sc->tulip_dbg.dbg_rxintrs - sc->tulip_dbg.dbg_last_rxintrs; + if (rxintrs > sc->tulip_dbg.dbg_high_rxintrs_hz) + sc->tulip_dbg.dbg_high_rxintrs_hz = rxintrs; + sc->tulip_dbg.dbg_last_rxintrs = sc->tulip_dbg.dbg_rxintrs; +#endif /* TULIP_DEBUG */ + + sc->tulip_if.if_timer = 1; + /* + * These should be rare so do a bulk test up front so we can just skip + * them if needed. + */ + if (sc->tulip_flags & (TULIP_SYSTEMERROR|TULIP_RXBUFSLOW|TULIP_NOMESSAGES)) { + /* + * If the number of receive buffer is low, try to refill + */ + if (sc->tulip_flags & TULIP_RXBUFSLOW) + tulip_rx_intr(sc); + + if (sc->tulip_flags & TULIP_SYSTEMERROR) { + printf("%s%d: %d system errors: last was %s\n", + sc->tulip_name, sc->tulip_unit, sc->tulip_system_errors, + tulip_system_errors[sc->tulip_last_system_error]); + } + if (sc->tulip_statusbits) { + tulip_print_abnormal_interrupt(sc, sc->tulip_statusbits); + sc->tulip_statusbits = 0; + } + + sc->tulip_flags &= ~(TULIP_NOMESSAGES|TULIP_SYSTEMERROR); + } + + if (sc->tulip_txtimer) + tulip_tx_intr(sc); + if (sc->tulip_txtimer && --sc->tulip_txtimer == 0) { + printf("%s%d: transmission timeout\n", sc->tulip_name, sc->tulip_unit); + if (TULIP_DO_AUTOSENSE(sc)) { + sc->tulip_media = TULIP_MEDIA_UNKNOWN; + sc->tulip_probe_state = TULIP_PROBE_INACTIVE; + sc->tulip_flags &= ~(TULIP_WANTRXACT|TULIP_LINKUP); + } + tulip_reset(sc); + tulip_init(sc); + } + + TULIP_PERFEND(ifwatchdog); + TULIP_PERFMERGE(sc, perf_intr_cycles); + TULIP_PERFMERGE(sc, perf_ifstart_cycles); + TULIP_PERFMERGE(sc, perf_ifioctl_cycles); + TULIP_PERFMERGE(sc, perf_ifwatchdog_cycles); + TULIP_PERFMERGE(sc, perf_timeout_cycles); + TULIP_PERFMERGE(sc, perf_ifstart_one_cycles); + TULIP_PERFMERGE(sc, perf_txput_cycles); + TULIP_PERFMERGE(sc, perf_txintr_cycles); + TULIP_PERFMERGE(sc, perf_rxintr_cycles); + TULIP_PERFMERGE(sc, perf_rxget_cycles); + TULIP_PERFMERGE(sc, perf_intr); + TULIP_PERFMERGE(sc, perf_ifstart); + TULIP_PERFMERGE(sc, perf_ifioctl); + TULIP_PERFMERGE(sc, perf_ifwatchdog); + TULIP_PERFMERGE(sc, perf_timeout); + TULIP_PERFMERGE(sc, perf_ifstart_one); + TULIP_PERFMERGE(sc, perf_txput); + TULIP_PERFMERGE(sc, perf_txintr); + TULIP_PERFMERGE(sc, perf_rxintr); + TULIP_PERFMERGE(sc, perf_rxget); +} + +/* + * All printf's are real as of now! + */ +#ifdef printf +#undef printf +#endif + +static void +tulip_attach( + tulip_softc_t * const sc) +{ + struct ifnet * const ifp = &sc->tulip_if; + + ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST; + ifp->if_ioctl = tulip_ifioctl; + ifp->if_start = tulip_ifstart; + ifp->if_watchdog = tulip_ifwatchdog; + ifp->if_timer = 1; + ifp->if_output = ether_output; + ifp->if_init = tulip_ifinit; + + printf("%s%d: %s%s pass %d.%d%s\n", + sc->tulip_name, sc->tulip_unit, + sc->tulip_boardid, + tulip_chipdescs[sc->tulip_chipid], + (sc->tulip_revinfo & 0xF0) >> 4, + sc->tulip_revinfo & 0x0F, + (sc->tulip_features & (TULIP_HAVE_ISVSROM|TULIP_HAVE_OKSROM)) + == TULIP_HAVE_ISVSROM ? " (invalid EESPROM checksum)" : ""); + printf("%s%d: address %6D\n", + sc->tulip_name, sc->tulip_unit, sc->tulip_enaddr, ":"); + +#if defined(__alpha__) + /* + * In case the SRM console told us about a bogus media, + * we need to check to be safe. + */ + if (sc->tulip_mediums[sc->tulip_media] == NULL) + sc->tulip_media = TULIP_MEDIA_UNKNOWN; +#endif + + (*sc->tulip_boardsw->bd_media_probe)(sc); + ifmedia_init(&sc->tulip_ifmedia, 0, + tulip_ifmedia_change, + tulip_ifmedia_status); + sc->tulip_flags &= ~TULIP_DEVICEPROBE; + tulip_ifmedia_add(sc); + + tulip_reset(sc); + + ether_ifattach(&(sc)->tulip_if, sc->tulip_enaddr); + ifp->if_snd.ifq_maxlen = ifqmaxlen; +} + +#if defined(TULIP_BUS_DMA) +#if !defined(TULIP_BUS_DMA_NOTX) || !defined(TULIP_BUS_DMA_NORX) +static int +tulip_busdma_allocmem( + tulip_softc_t * const sc, + size_t size, + bus_dmamap_t *map_p, + tulip_desc_t **desc_p) +{ + bus_dma_segment_t segs[1]; + int nsegs, error; + error = bus_dmamem_alloc(sc->tulip_dmatag, size, 1, PAGE_SIZE, + segs, sizeof(segs)/sizeof(segs[0]), + &nsegs, BUS_DMA_NOWAIT); + if (error == 0) { + void *desc; + error = bus_dmamem_map(sc->tulip_dmatag, segs, nsegs, size, + (void *) &desc, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); + if (error == 0) { + bus_dmamap_t map; + error = bus_dmamap_create(sc->tulip_dmatag, size, 1, size, 0, + BUS_DMA_NOWAIT, &map); + if (error == 0) { + error = bus_dmamap_load(sc->tulip_dmatag, map, desc, + size, NULL, BUS_DMA_NOWAIT); + if (error) + bus_dmamap_destroy(sc->tulip_dmatag, map); + else + *map_p = map; + } + if (error) + bus_dmamem_unmap(sc->tulip_dmatag, desc, size); + } + if (error) + bus_dmamem_free(sc->tulip_dmatag, segs, nsegs); + else + *desc_p = desc; + } + return error; +} +#endif + +static int +tulip_busdma_init( + tulip_softc_t * const sc) +{ + int error = 0; + +#if !defined(TULIP_BUS_DMA_NOTX) + /* + * Allocate dmamap for setup descriptor + */ + error = bus_dmamap_create(sc->tulip_dmatag, sizeof(sc->tulip_setupbuf), 2, + sizeof(sc->tulip_setupbuf), 0, BUS_DMA_NOWAIT, + &sc->tulip_setupmap); + if (error == 0) { + error = bus_dmamap_load(sc->tulip_dmatag, sc->tulip_setupmap, + sc->tulip_setupbuf, sizeof(sc->tulip_setupbuf), + NULL, BUS_DMA_NOWAIT); + if (error) + bus_dmamap_destroy(sc->tulip_dmatag, sc->tulip_setupmap); + } + /* + * Allocate space and dmamap for transmit ring + */ + if (error == 0) { + error = tulip_busdma_allocmem(sc, sizeof(tulip_desc_t) * TULIP_TXDESCS, + &sc->tulip_txdescmap, + &sc->tulip_txdescs); + } + + /* + * Allocate dmamaps for each transmit descriptors + */ + if (error == 0) { + while (error == 0 && sc->tulip_txmaps_free < TULIP_TXDESCS) { + bus_dmamap_t map; + if ((error = TULIP_TXMAP_CREATE(sc, &map)) == 0) + sc->tulip_txmaps[sc->tulip_txmaps_free++] = map; + } + if (error) { + while (sc->tulip_txmaps_free > 0) + bus_dmamap_destroy(sc->tulip_dmatag, + sc->tulip_txmaps[--sc->tulip_txmaps_free]); + } + } +#else + if (error == 0) { + sc->tulip_txdescs = (tulip_desc_t *) malloc(TULIP_TXDESCS * sizeof(tulip_desc_t), M_DEVBUF, M_NOWAIT); + if (sc->tulip_txdescs == NULL) + error = ENOMEM; + } +#endif +#if !defined(TULIP_BUS_DMA_NORX) + /* + * Allocate space and dmamap for receive ring + */ + if (error == 0) { + error = tulip_busdma_allocmem(sc, sizeof(tulip_desc_t) * TULIP_RXDESCS, + &sc->tulip_rxdescmap, + &sc->tulip_rxdescs); + } + + /* + * Allocate dmamaps for each receive descriptors + */ + if (error == 0) { + while (error == 0 && sc->tulip_rxmaps_free < TULIP_RXDESCS) { + bus_dmamap_t map; + if ((error = TULIP_RXMAP_CREATE(sc, &map)) == 0) + sc->tulip_rxmaps[sc->tulip_rxmaps_free++] = map; + } + if (error) { + while (sc->tulip_rxmaps_free > 0) + bus_dmamap_destroy(sc->tulip_dmatag, + sc->tulip_rxmaps[--sc->tulip_rxmaps_free]); + } + } +#else + if (error == 0) { + sc->tulip_rxdescs = (tulip_desc_t *) malloc(TULIP_RXDESCS * sizeof(tulip_desc_t), M_DEVBUF, M_NOWAIT); + if (sc->tulip_rxdescs == NULL) + error = ENOMEM; + } +#endif + return error; +} +#endif /* TULIP_BUS_DMA */ + +static void +tulip_initcsrs( + tulip_softc_t * const sc, + tulip_csrptr_t csr_base, + size_t csr_size) +{ + sc->tulip_csrs.csr_busmode = csr_base + 0 * csr_size; + sc->tulip_csrs.csr_txpoll = csr_base + 1 * csr_size; + sc->tulip_csrs.csr_rxpoll = csr_base + 2 * csr_size; + sc->tulip_csrs.csr_rxlist = csr_base + 3 * csr_size; + sc->tulip_csrs.csr_txlist = csr_base + 4 * csr_size; + sc->tulip_csrs.csr_status = csr_base + 5 * csr_size; + sc->tulip_csrs.csr_command = csr_base + 6 * csr_size; + sc->tulip_csrs.csr_intr = csr_base + 7 * csr_size; + sc->tulip_csrs.csr_missed_frames = csr_base + 8 * csr_size; + sc->tulip_csrs.csr_9 = csr_base + 9 * csr_size; + sc->tulip_csrs.csr_10 = csr_base + 10 * csr_size; + sc->tulip_csrs.csr_11 = csr_base + 11 * csr_size; + sc->tulip_csrs.csr_12 = csr_base + 12 * csr_size; + sc->tulip_csrs.csr_13 = csr_base + 13 * csr_size; + sc->tulip_csrs.csr_14 = csr_base + 14 * csr_size; + sc->tulip_csrs.csr_15 = csr_base + 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. + */ + +#define PCI_CBIO 0x10 /* Configuration Base IO Address */ +#define PCI_CBMA 0x14 /* Configuration Base Memory Address */ +#define PCI_CFDA 0x40 /* Configuration Driver Area */ + +static int +tulip_pci_probe(device_t dev) +{ + const char *name = NULL; + + if (pci_get_vendor(dev) != DEC_VENDORID) + return ENXIO; + + /* + * Some LanMedia WAN cards use the Tulip chip, but they have + * their own driver, and we should not recognize them + */ + if (pci_get_subvendor(dev) == 0x1376) + return ENXIO; + + switch (pci_get_device(dev)) { + case CHIPID_21040: + name = "Digital 21040 Ethernet"; + break; + case CHIPID_21041: + name = "Digital 21041 Ethernet"; + break; + case CHIPID_21140: + if (pci_get_revid(dev) >= 0x20) + name = "Digital 21140A Fast Ethernet"; + else + name = "Digital 21140 Fast Ethernet"; + break; + case CHIPID_21142: + if (pci_get_revid(dev) >= 0x20) + name = "Digital 21143 Fast Ethernet"; + else + name = "Digital 21142 Fast Ethernet"; + break; + } + if (name) { + device_set_desc(dev, name); + return -200; + } + return ENXIO; +} + +static int +tulip_shutdown(device_t dev) +{ + tulip_softc_t * const sc = device_get_softc(dev); + TULIP_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET); + DELAY(10); /* Wait 10 microseconds (actually 50 PCI cycles but at + 33MHz that comes to two microseconds but wait a + bit longer anyways) */ + return 0; +} + +static int +tulip_pci_attach(device_t dev) +{ + tulip_softc_t *sc; +#if defined(__alpha__) + tulip_media_t media = TULIP_MEDIA_UNKNOWN; +#endif + int retval, idx; + u_int32_t revinfo, cfdainfo, cfcsinfo; + unsigned csroffset = TULIP_PCI_CSROFFSET; + unsigned csrsize = TULIP_PCI_CSRSIZE; + tulip_csrptr_t csr_base; + tulip_chipid_t chipid = TULIP_CHIPID_UNKNOWN; + struct resource *res; + int rid, unit; + + unit = device_get_unit(dev); + + if (unit >= TULIP_MAX_DEVICES) { + printf("de%d", unit); + printf(": not configured; limit of %d reached or exceeded\n", + TULIP_MAX_DEVICES); + return ENXIO; + } + + revinfo = pci_get_revid(dev); + cfdainfo = pci_read_config(dev, PCI_CFDA, 4); + cfcsinfo = pci_read_config(dev, PCIR_COMMAND, 4); + + /* turn busmaster on in case BIOS doesn't set it */ + if(!(cfcsinfo & PCIM_CMD_BUSMASTEREN)) { + cfcsinfo |= PCIM_CMD_BUSMASTEREN; + pci_write_config(dev, PCIR_COMMAND, cfcsinfo, 4); + } + + if (pci_get_vendor(dev) == DEC_VENDORID) { + if (pci_get_device(dev) == CHIPID_21040) + chipid = TULIP_21040; + else if (pci_get_device(dev) == CHIPID_21041) + chipid = TULIP_21041; + else if (pci_get_device(dev) == CHIPID_21140) + chipid = (revinfo >= 0x20) ? TULIP_21140A : TULIP_21140; + else if (pci_get_device(dev) == CHIPID_21142) + chipid = (revinfo >= 0x20) ? TULIP_21143 : TULIP_21142; + } + if (chipid == TULIP_CHIPID_UNKNOWN) + return ENXIO; + + if (chipid == TULIP_21040 && revinfo < 0x20) { + printf("de%d", unit); + printf(": not configured; 21040 pass 2.0 required (%d.%d found)\n", + revinfo >> 4, revinfo & 0x0f); + return ENXIO; + } else if (chipid == TULIP_21140 && revinfo < 0x11) { + printf("de%d: not configured; 21140 pass 1.1 required (%d.%d found)\n", + unit, revinfo >> 4, revinfo & 0x0f); + return ENXIO; + } + + sc = device_get_softc(dev); + sc->tulip_pci_busno = pci_get_bus(dev); + sc->tulip_pci_devno = pci_get_slot(dev); + sc->tulip_chipid = chipid; + sc->tulip_flags |= TULIP_DEVICEPROBE; + if (chipid == TULIP_21140 || chipid == TULIP_21140A) + sc->tulip_features |= TULIP_HAVE_GPR|TULIP_HAVE_STOREFWD; + if (chipid == TULIP_21140A && revinfo <= 0x22) + sc->tulip_features |= TULIP_HAVE_RXBADOVRFLW; + if (chipid == TULIP_21140) + sc->tulip_features |= TULIP_HAVE_BROKEN_HASH; + if (chipid != TULIP_21040 && chipid != TULIP_21140) + sc->tulip_features |= TULIP_HAVE_POWERMGMT; + if (chipid == TULIP_21041 || chipid == TULIP_21142 || chipid == TULIP_21143) { + sc->tulip_features |= TULIP_HAVE_DUALSENSE; + if (chipid != TULIP_21041 || revinfo >= 0x20) + sc->tulip_features |= TULIP_HAVE_SIANWAY; + if (chipid != TULIP_21041) + sc->tulip_features |= TULIP_HAVE_SIAGP|TULIP_HAVE_RXBADOVRFLW|TULIP_HAVE_STOREFWD; + if (chipid != TULIP_21041 && revinfo >= 0x20) + sc->tulip_features |= TULIP_HAVE_SIA100; + } + + if (sc->tulip_features & TULIP_HAVE_POWERMGMT + && (cfdainfo & (TULIP_CFDA_SLEEP|TULIP_CFDA_SNOOZE))) { + cfdainfo &= ~(TULIP_CFDA_SLEEP|TULIP_CFDA_SNOOZE); + pci_write_config(dev, PCI_CFDA, cfdainfo, 4); + DELAY(11*1000); + } +#if defined(__alpha__) + /* + * The Alpha SRM console encodes a console set media in the driver + * part of the CFDA register. Note that the Multia presents a + * problem in that its BNC mode is really EXTSIA. So in that case + * force a probe. + */ + switch ((cfdainfo >> 8) & 0xff) { + case 1: media = chipid > TULIP_21040 ? TULIP_MEDIA_AUI : TULIP_MEDIA_AUIBNC; break; + case 2: media = chipid > TULIP_21040 ? TULIP_MEDIA_BNC : TULIP_MEDIA_UNKNOWN; break; + case 3: media = TULIP_MEDIA_10BASET; break; + case 4: media = TULIP_MEDIA_10BASET_FD; break; + case 5: media = TULIP_MEDIA_100BASETX; break; + case 6: media = TULIP_MEDIA_100BASETX_FD; break; + default: media = TULIP_MEDIA_UNKNOWN; break; + } +#endif + + sc->tulip_unit = unit; + sc->tulip_name = "de"; + sc->tulip_revinfo = revinfo; + sc->tulip_if.if_softc = sc; +#if defined(TULIP_IOMAPPED) + rid = PCI_CBIO; + res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, + 0, ~0, 1, RF_ACTIVE); +#else + rid = PCI_CBMA; + res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, + 0, ~0, 1, RF_ACTIVE); +#endif + if (!res) + return ENXIO; + sc->tulip_csrs_bst = rman_get_bustag(res); + sc->tulip_csrs_bsh = rman_get_bushandle(res); + csr_base = 0; + + tulips[unit] = sc; + + tulip_initcsrs(sc, csr_base + csroffset, csrsize); + +#if defined(TULIP_BUS_DMA) + if ((retval = tulip_busdma_init(sc)) != 0) { + printf("error initing bus_dma: %d\n", retval); + return ENXIO; + } +#else + sc->tulip_rxdescs = (tulip_desc_t *) malloc(sizeof(tulip_desc_t) * TULIP_RXDESCS, M_DEVBUF, M_NOWAIT); + sc->tulip_txdescs = (tulip_desc_t *) malloc(sizeof(tulip_desc_t) * TULIP_TXDESCS, M_DEVBUF, M_NOWAIT); + if (sc->tulip_rxdescs == NULL || sc->tulip_txdescs == NULL) { + printf("malloc failed\n"); + if (sc->tulip_rxdescs) + free((caddr_t) sc->tulip_rxdescs, M_DEVBUF); + if (sc->tulip_txdescs) + free((caddr_t) sc->tulip_txdescs, M_DEVBUF); + return ENXIO; + } +#endif + + tulip_initring(sc, &sc->tulip_rxinfo, sc->tulip_rxdescs, TULIP_RXDESCS); + tulip_initring(sc, &sc->tulip_txinfo, sc->tulip_txdescs, TULIP_TXDESCS); + + /* + * Make sure there won't be any interrupts or such... + */ + TULIP_CSR_WRITE(sc, csr_busmode, TULIP_BUSMODE_SWRESET); + DELAY(100); /* Wait 10 microseconds (actually 50 PCI cycles but at + 33MHz that comes to two microseconds but wait a + bit longer anyways) */ + + if ((retval = tulip_read_macaddr(sc)) < 0) { + printf("%s%d", sc->tulip_name, sc->tulip_unit); + 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\n", + sc->tulip_name, sc->tulip_unit, + sc->tulip_boardid, tulip_chipdescs[sc->tulip_chipid], + (sc->tulip_revinfo & 0xF0) >> 4, sc->tulip_revinfo & 0x0F); + printf("%s%d: address unknown\n", sc->tulip_name, sc->tulip_unit); + } else { + int s; + void (*intr_rtn)(void *) = tulip_intr_normal; + + if (sc->tulip_features & TULIP_HAVE_SHAREDINTR) + intr_rtn = tulip_intr_shared; + + if ((sc->tulip_features & TULIP_HAVE_SLAVEDINTR) == 0) { + void *ih; + + rid = 0; + res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, + 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); + if (res == 0 || bus_setup_intr(dev, res, INTR_TYPE_NET, + intr_rtn, sc, &ih)) { + printf("%s%d: couldn't map interrupt\n", + sc->tulip_name, sc->tulip_unit); + free((caddr_t) sc->tulip_rxdescs, M_DEVBUF); + free((caddr_t) sc->tulip_txdescs, M_DEVBUF); + return ENXIO; + } + } +#if defined(TULIP_USE_SOFTINTR) + if (sc->tulip_unit > tulip_softintr_max_unit) + tulip_softintr_max_unit = sc->tulip_unit; +#endif + + s = splimp(); +#if defined(__alpha__) + sc->tulip_media = media; +#endif + tulip_attach(sc); +#if defined(__alpha__) + if (sc->tulip_media != TULIP_MEDIA_UNKNOWN) + tulip_linkup(sc, media); +#endif + splx(s); + } + return 0; +} + +static device_method_t tulip_pci_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, tulip_pci_probe), + DEVMETHOD(device_attach, tulip_pci_attach), + DEVMETHOD(device_shutdown, tulip_shutdown), + { 0, 0 } +}; +static driver_t tulip_pci_driver = { + "de", + tulip_pci_methods, + sizeof(tulip_softc_t), +}; +static devclass_t tulip_devclass; +DRIVER_MODULE(de, pci, tulip_pci_driver, tulip_devclass, 0, 0); |
