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freebsd-skq/sys/pci/if_de.c
schweikh d3367c5f5d Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup, 
especially in troff files.
2003-01-01 18:49:04 +00:00

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/* $NetBSD: if_de.c,v 1.86 1999/06/01 19:17:59 thorpej Exp $ */
/* $FreeBSD$ */
/*-
* 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).
*/
#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__);
#endif
return TULIP_LINK_UNKNOWN;
}
/*
* 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(etherbroadcastaddr);
#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)
struct ether_header eh;
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 */
eh = *mtod(ms, struct ether_header *);
#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(if_de, pci, tulip_pci_driver, tulip_devclass, 0, 0);
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