if_my.c revision 95939
193746Sjulian/*
293746Sjulian * Copyright (c) 2002 Myson Technology Inc.
393746Sjulian * All rights reserved.
493746Sjulian *
593746Sjulian * Redistribution and use in source and binary forms, with or without
693746Sjulian * modification, are permitted provided that the following conditions
793746Sjulian * are met:
893746Sjulian * 1. Redistributions of source code must retain the above copyright
993746Sjulian *    notice, this list of conditions, and the following disclaimer,
1093746Sjulian *    without modification, immediately at the beginning of the file.
1193746Sjulian * 2. The name of the author may not be used to endorse or promote products
1293746Sjulian *    derived from this software without specific prior written permission.
1393746Sjulian *
1493746Sjulian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1593746Sjulian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1693746Sjulian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1793746Sjulian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
1893746Sjulian * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1993746Sjulian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2093746Sjulian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2193746Sjulian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2293746Sjulian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2393746Sjulian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2493746Sjulian * SUCH DAMAGE.
2593746Sjulian *
2693746Sjulian * Written by: yen_cw@myson.com.tw  available at: http://www.myson.com.tw/
2793746Sjulian *
2893746Sjulian * $FreeBSD: head/sys/dev/my/if_my.c 95939 2002-05-02 15:58:04Z julian $
2993746Sjulian *
3093746Sjulian * Myson fast ethernet PCI NIC driver
3193746Sjulian */
3293746Sjulian#include <sys/param.h>
3393746Sjulian#include <sys/systm.h>
3493746Sjulian#include <sys/sockio.h>
3593746Sjulian#include <sys/mbuf.h>
3693746Sjulian#include <sys/malloc.h>
3793746Sjulian#include <sys/kernel.h>
3893746Sjulian#include <sys/socket.h>
3993746Sjulian#include <sys/queue.h>
4093746Sjulian#include <sys/types.h>
4193746Sjulian#include <sys/bus.h>
4293746Sjulian#include <sys/module.h>
4395807Sjulian#include <sys/lock.h>
4495807Sjulian#include <sys/mutex.h>
4593746Sjulian
4693746Sjulian#define NBPFILTER	1
4793746Sjulian
4893746Sjulian#include <net/if.h>
4993746Sjulian#include <net/if_arp.h>
5093746Sjulian#include <net/ethernet.h>
5193746Sjulian#include <net/if_media.h>
5293746Sjulian#include <net/if_dl.h>
5393746Sjulian#include <net/bpf.h>
5493746Sjulian
5593746Sjulian#include <vm/vm.h>		/* for vtophys */
5693746Sjulian#include <vm/pmap.h>		/* for vtophys */
5793746Sjulian#include <machine/clock.h>	/* for DELAY */
5893746Sjulian#include <machine/bus_memio.h>
5993746Sjulian#include <machine/bus_pio.h>
6093746Sjulian#include <machine/bus.h>
6193746Sjulian#include <machine/resource.h>
6293746Sjulian#include <sys/bus.h>
6393746Sjulian#include <sys/rman.h>
6493746Sjulian
6593746Sjulian#include <pci/pcireg.h>
6693746Sjulian#include <pci/pcivar.h>
6793746Sjulian
6893746Sjulian#include <dev/mii/mii.h>
6993746Sjulian#include <dev/mii/miivar.h>
7093746Sjulian
7193746Sjulian#include "miibus_if.h"
7293746Sjulian
7393746Sjulian/*
7493746Sjulian * #define MY_USEIOSPACE
7593746Sjulian */
7693746Sjulian
7793746Sjulianstatic int      MY_USEIOSPACE = 1;
7893746Sjulian
7993746Sjulian#if (MY_USEIOSPACE)
8094904Sjulian#define MY_RES                  SYS_RES_IOPORT
8194904Sjulian#define MY_RID                  MY_PCI_LOIO
8293746Sjulian#else
8394904Sjulian#define MY_RES                  SYS_RES_MEMORY
8494904Sjulian#define MY_RID                  MY_PCI_LOMEM
8593746Sjulian#endif
8693746Sjulian
8793746Sjulian
8893746Sjulian#include <dev/my/if_myreg.h>
8993746Sjulian
9093746Sjulian#ifndef lint
9193746Sjulianstatic          const char rcsid[] =
9293746Sjulian"$Id: if_my.c,v 1.50 2001/12/03 04:15:33 <yen_cw@myson.com.tw> wpaul Exp $";
9393746Sjulian#endif
9493746Sjulian
9593746Sjulian/*
9693746Sjulian * Various supported device vendors/types and their names.
9793746Sjulian */
9893746Sjulianstruct my_type *my_info_tmp;
9993746Sjulianstatic struct my_type my_devs[] = {
10093746Sjulian	{MYSONVENDORID, MTD800ID, "Myson MTD80X Based Fast Ethernet Card"},
10193746Sjulian	{MYSONVENDORID, MTD803ID, "Myson MTD80X Based Fast Ethernet Card"},
10293746Sjulian	{MYSONVENDORID, MTD891ID, "Myson MTD89X Based Giga Ethernet Card"},
10393746Sjulian	{0, 0, NULL}
10493746Sjulian};
10593746Sjulian
10693746Sjulian/*
10793746Sjulian * Various supported PHY vendors/types and their names. Note that this driver
10893746Sjulian * will work with pretty much any MII-compliant PHY, so failure to positively
10993746Sjulian * identify the chip is not a fatal error.
11093746Sjulian */
11193746Sjulianstatic struct my_type my_phys[] = {
11293746Sjulian	{MysonPHYID0, MysonPHYID0, "<MYSON MTD981>"},
11393746Sjulian	{SeeqPHYID0, SeeqPHYID0, "<SEEQ 80225>"},
11493746Sjulian	{AhdocPHYID0, AhdocPHYID0, "<AHDOC 101>"},
11593746Sjulian	{MarvellPHYID0, MarvellPHYID0, "<MARVELL 88E1000>"},
11693746Sjulian	{LevelOnePHYID0, LevelOnePHYID0, "<LevelOne LXT1000>"},
11793746Sjulian	{0, 0, "<MII-compliant physical interface>"}
11893746Sjulian};
11993746Sjulian
12093746Sjulianstatic int      my_probe(device_t);
12193746Sjulianstatic int      my_attach(device_t);
12293746Sjulianstatic int      my_detach(device_t);
12393746Sjulianstatic int      my_newbuf(struct my_softc *, struct my_chain_onefrag *);
12493746Sjulianstatic int      my_encap(struct my_softc *, struct my_chain *, struct mbuf *);
12593746Sjulianstatic void     my_rxeof(struct my_softc *);
12693746Sjulianstatic void     my_txeof(struct my_softc *);
12793746Sjulianstatic void     my_txeoc(struct my_softc *);
12893746Sjulianstatic void     my_intr(void *);
12993746Sjulianstatic void     my_start(struct ifnet *);
13093746Sjulianstatic int      my_ioctl(struct ifnet *, u_long, caddr_t);
13193746Sjulianstatic void     my_init(void *);
13293746Sjulianstatic void     my_stop(struct my_softc *);
13393746Sjulianstatic void     my_watchdog(struct ifnet *);
13493746Sjulianstatic void     my_shutdown(device_t);
13593746Sjulianstatic int      my_ifmedia_upd(struct ifnet *);
13693746Sjulianstatic void     my_ifmedia_sts(struct ifnet *, struct ifmediareq *);
13793746Sjulianstatic u_int16_t my_phy_readreg(struct my_softc *, int);
13893746Sjulianstatic void     my_phy_writereg(struct my_softc *, int, int);
13993746Sjulianstatic void     my_autoneg_xmit(struct my_softc *);
14093746Sjulianstatic void     my_autoneg_mii(struct my_softc *, int, int);
14193746Sjulianstatic void     my_setmode_mii(struct my_softc *, int);
14293746Sjulianstatic void     my_getmode_mii(struct my_softc *);
14393746Sjulianstatic void     my_setcfg(struct my_softc *, int);
14493746Sjulianstatic u_int8_t my_calchash(caddr_t);
14593746Sjulianstatic void     my_setmulti(struct my_softc *);
14693746Sjulianstatic void     my_reset(struct my_softc *);
14793746Sjulianstatic int      my_list_rx_init(struct my_softc *);
14893746Sjulianstatic int      my_list_tx_init(struct my_softc *);
14993746Sjulianstatic long     my_send_cmd_to_phy(struct my_softc *, int, int);
15093746Sjulian
15193746Sjulian#define MY_SETBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | x)
15293746Sjulian#define MY_CLRBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~x)
15393746Sjulian
15493746Sjulianstatic device_method_t my_methods[] = {
15593746Sjulian	/* Device interface */
15693746Sjulian	DEVMETHOD(device_probe, my_probe),
15793746Sjulian	DEVMETHOD(device_attach, my_attach),
15893746Sjulian	DEVMETHOD(device_detach, my_detach),
15993746Sjulian	DEVMETHOD(device_shutdown, my_shutdown),
16093746Sjulian
16193746Sjulian	{0, 0}
16293746Sjulian};
16393746Sjulian
16493746Sjulianstatic driver_t my_driver = {
16593746Sjulian	"my",
16693746Sjulian	my_methods,
16793746Sjulian	sizeof(struct my_softc)
16893746Sjulian};
16993746Sjulian
17093746Sjulianstatic devclass_t my_devclass;
17193746Sjulian
17293746SjulianDRIVER_MODULE(if_my, pci, my_driver, my_devclass, 0, 0);
17393746Sjulian
17493746Sjulianstatic long
17593746Sjulianmy_send_cmd_to_phy(struct my_softc * sc, int opcode, int regad)
17693746Sjulian{
17793746Sjulian	long            miir;
17893746Sjulian	int             i;
17993746Sjulian	int             mask, data;
18093746Sjulian
18193746Sjulian	MY_LOCK(sc);
18293746Sjulian
18393746Sjulian	/* enable MII output */
18493746Sjulian	miir = CSR_READ_4(sc, MY_MANAGEMENT);
18593746Sjulian	miir &= 0xfffffff0;
18693746Sjulian
18793746Sjulian	miir |= MY_MASK_MIIR_MII_WRITE + MY_MASK_MIIR_MII_MDO;
18893746Sjulian
18993746Sjulian	/* send 32 1's preamble */
19093746Sjulian	for (i = 0; i < 32; i++) {
19193746Sjulian		/* low MDC; MDO is already high (miir) */
19293746Sjulian		miir &= ~MY_MASK_MIIR_MII_MDC;
19393746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
19493746Sjulian
19593746Sjulian		/* high MDC */
19693746Sjulian		miir |= MY_MASK_MIIR_MII_MDC;
19793746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
19893746Sjulian	}
19993746Sjulian
20093746Sjulian	/* calculate ST+OP+PHYAD+REGAD+TA */
20193746Sjulian	data = opcode | (sc->my_phy_addr << 7) | (regad << 2);
20293746Sjulian
20393746Sjulian	/* sent out */
20493746Sjulian	mask = 0x8000;
20593746Sjulian	while (mask) {
20693746Sjulian		/* low MDC, prepare MDO */
20793746Sjulian		miir &= ~(MY_MASK_MIIR_MII_MDC + MY_MASK_MIIR_MII_MDO);
20893746Sjulian		if (mask & data)
20993746Sjulian			miir |= MY_MASK_MIIR_MII_MDO;
21093746Sjulian
21193746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
21293746Sjulian		/* high MDC */
21393746Sjulian		miir |= MY_MASK_MIIR_MII_MDC;
21493746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
21593746Sjulian		DELAY(30);
21693746Sjulian
21793746Sjulian		/* next */
21893746Sjulian		mask >>= 1;
21993746Sjulian		if (mask == 0x2 && opcode == MY_OP_READ)
22093746Sjulian			miir &= ~MY_MASK_MIIR_MII_WRITE;
22193746Sjulian	}
22293746Sjulian
22393746Sjulian	MY_UNLOCK(sc);
22493746Sjulian	return miir;
22593746Sjulian}
22693746Sjulian
22793746Sjulian
22893746Sjulianstatic          u_int16_t
22993746Sjulianmy_phy_readreg(struct my_softc * sc, int reg)
23093746Sjulian{
23193746Sjulian	long            miir;
23293746Sjulian	int             mask, data;
23393746Sjulian
23493746Sjulian	MY_LOCK(sc);
23593746Sjulian
23693746Sjulian	if (sc->my_info->my_did == MTD803ID)
23793746Sjulian		data = CSR_READ_2(sc, MY_PHYBASE + reg * 2);
23893746Sjulian	else {
23993746Sjulian		miir = my_send_cmd_to_phy(sc, MY_OP_READ, reg);
24093746Sjulian
24193746Sjulian		/* read data */
24293746Sjulian		mask = 0x8000;
24393746Sjulian		data = 0;
24493746Sjulian		while (mask) {
24593746Sjulian			/* low MDC */
24693746Sjulian			miir &= ~MY_MASK_MIIR_MII_MDC;
24793746Sjulian			CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
24893746Sjulian
24993746Sjulian			/* read MDI */
25093746Sjulian			miir = CSR_READ_4(sc, MY_MANAGEMENT);
25193746Sjulian			if (miir & MY_MASK_MIIR_MII_MDI)
25293746Sjulian				data |= mask;
25393746Sjulian
25493746Sjulian			/* high MDC, and wait */
25593746Sjulian			miir |= MY_MASK_MIIR_MII_MDC;
25693746Sjulian			CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
25793746Sjulian			DELAY(30);
25893746Sjulian
25993746Sjulian			/* next */
26093746Sjulian			mask >>= 1;
26193746Sjulian		}
26293746Sjulian
26393746Sjulian		/* low MDC */
26493746Sjulian		miir &= ~MY_MASK_MIIR_MII_MDC;
26593746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
26693746Sjulian	}
26793746Sjulian
26893746Sjulian	MY_UNLOCK(sc);
26993746Sjulian	return (u_int16_t) data;
27093746Sjulian}
27193746Sjulian
27293746Sjulian
27393746Sjulianstatic void
27493746Sjulianmy_phy_writereg(struct my_softc * sc, int reg, int data)
27593746Sjulian{
27693746Sjulian	long            miir;
27793746Sjulian	int             mask;
27893746Sjulian
27993746Sjulian	MY_LOCK(sc);
28093746Sjulian
28193746Sjulian	if (sc->my_info->my_did == MTD803ID)
28293746Sjulian		CSR_WRITE_2(sc, MY_PHYBASE + reg * 2, data);
28393746Sjulian	else {
28493746Sjulian		miir = my_send_cmd_to_phy(sc, MY_OP_WRITE, reg);
28593746Sjulian
28693746Sjulian		/* write data */
28793746Sjulian		mask = 0x8000;
28893746Sjulian		while (mask) {
28993746Sjulian			/* low MDC, prepare MDO */
29093746Sjulian			miir &= ~(MY_MASK_MIIR_MII_MDC + MY_MASK_MIIR_MII_MDO);
29193746Sjulian			if (mask & data)
29293746Sjulian				miir |= MY_MASK_MIIR_MII_MDO;
29393746Sjulian			CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
29493746Sjulian			DELAY(1);
29593746Sjulian
29693746Sjulian			/* high MDC */
29793746Sjulian			miir |= MY_MASK_MIIR_MII_MDC;
29893746Sjulian			CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
29993746Sjulian			DELAY(1);
30093746Sjulian
30193746Sjulian			/* next */
30293746Sjulian			mask >>= 1;
30393746Sjulian		}
30493746Sjulian
30593746Sjulian		/* low MDC */
30693746Sjulian		miir &= ~MY_MASK_MIIR_MII_MDC;
30793746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
30893746Sjulian	}
30993746Sjulian	MY_UNLOCK(sc);
31093746Sjulian	return;
31193746Sjulian}
31293746Sjulian
31393746Sjulianstatic          u_int8_t
31493746Sjulianmy_calchash(caddr_t addr)
31593746Sjulian{
31693746Sjulian	u_int32_t       crc, carry;
31793746Sjulian	int             i, j;
31893746Sjulian	u_int8_t        c;
31993746Sjulian
32093746Sjulian	/* Compute CRC for the address value. */
32193746Sjulian	crc = 0xFFFFFFFF;	/* initial value */
32293746Sjulian
32393746Sjulian	for (i = 0; i < 6; i++) {
32493746Sjulian		c = *(addr + i);
32593746Sjulian		for (j = 0; j < 8; j++) {
32693746Sjulian			carry = ((crc & 0x80000000) ? 1 : 0) ^ (c & 0x01);
32793746Sjulian			crc <<= 1;
32893746Sjulian			c >>= 1;
32993746Sjulian			if (carry)
33093746Sjulian				crc = (crc ^ 0x04c11db6) | carry;
33193746Sjulian		}
33293746Sjulian	}
33393746Sjulian
33493746Sjulian	/*
33593746Sjulian	 * return the filter bit position Note: I arrived at the following
33693746Sjulian	 * nonsense through experimentation. It's not the usual way to
33793746Sjulian	 * generate the bit position but it's the only thing I could come up
33893746Sjulian	 * with that works.
33993746Sjulian	 */
34093746Sjulian	return (~(crc >> 26) & 0x0000003F);
34193746Sjulian}
34293746Sjulian
34393746Sjulian
34493746Sjulian/*
34593746Sjulian * Program the 64-bit multicast hash filter.
34693746Sjulian */
34793746Sjulianstatic void
34893746Sjulianmy_setmulti(struct my_softc * sc)
34993746Sjulian{
35093746Sjulian	struct ifnet   *ifp;
35193746Sjulian	int             h = 0;
35293746Sjulian	u_int32_t       hashes[2] = {0, 0};
35393746Sjulian	struct ifmultiaddr *ifma;
35493746Sjulian	u_int32_t       rxfilt;
35593746Sjulian	int             mcnt = 0;
35693746Sjulian
35793746Sjulian	MY_LOCK(sc);
35893746Sjulian
35993746Sjulian	ifp = &sc->arpcom.ac_if;
36093746Sjulian
36193746Sjulian	rxfilt = CSR_READ_4(sc, MY_TCRRCR);
36293746Sjulian
36393746Sjulian	if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
36493746Sjulian		rxfilt |= MY_AM;
36593746Sjulian		CSR_WRITE_4(sc, MY_TCRRCR, rxfilt);
36693746Sjulian		CSR_WRITE_4(sc, MY_MAR0, 0xFFFFFFFF);
36793746Sjulian		CSR_WRITE_4(sc, MY_MAR1, 0xFFFFFFFF);
36893746Sjulian
36993746Sjulian		MY_UNLOCK(sc);
37093746Sjulian
37193746Sjulian		return;
37293746Sjulian	}
37393746Sjulian	/* first, zot all the existing hash bits */
37493746Sjulian	CSR_WRITE_4(sc, MY_MAR0, 0);
37593746Sjulian	CSR_WRITE_4(sc, MY_MAR1, 0);
37693746Sjulian
37793746Sjulian	/* now program new ones */
37893746Sjulian	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
37993746Sjulian		if (ifma->ifma_addr->sa_family != AF_LINK)
38093746Sjulian			continue;
38193746Sjulian		h = my_calchash(LLADDR((struct sockaddr_dl *) ifma->ifma_addr));
38293746Sjulian		if (h < 32)
38393746Sjulian			hashes[0] |= (1 << h);
38493746Sjulian		else
38593746Sjulian			hashes[1] |= (1 << (h - 32));
38693746Sjulian		mcnt++;
38793746Sjulian	}
38893746Sjulian
38993746Sjulian	if (mcnt)
39093746Sjulian		rxfilt |= MY_AM;
39193746Sjulian	else
39293746Sjulian		rxfilt &= ~MY_AM;
39393746Sjulian	CSR_WRITE_4(sc, MY_MAR0, hashes[0]);
39493746Sjulian	CSR_WRITE_4(sc, MY_MAR1, hashes[1]);
39593746Sjulian	CSR_WRITE_4(sc, MY_TCRRCR, rxfilt);
39693746Sjulian	MY_UNLOCK(sc);
39793746Sjulian	return;
39893746Sjulian}
39993746Sjulian
40093746Sjulian/*
40193746Sjulian * Initiate an autonegotiation session.
40293746Sjulian */
40393746Sjulianstatic void
40493746Sjulianmy_autoneg_xmit(struct my_softc * sc)
40593746Sjulian{
40693746Sjulian	u_int16_t       phy_sts = 0;
40793746Sjulian
40893746Sjulian	MY_LOCK(sc);
40993746Sjulian
41093746Sjulian	my_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET);
41193746Sjulian	DELAY(500);
41293746Sjulian	while (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_RESET);
41393746Sjulian
41493746Sjulian	phy_sts = my_phy_readreg(sc, PHY_BMCR);
41593746Sjulian	phy_sts |= PHY_BMCR_AUTONEGENBL | PHY_BMCR_AUTONEGRSTR;
41693746Sjulian	my_phy_writereg(sc, PHY_BMCR, phy_sts);
41793746Sjulian
41893746Sjulian	MY_UNLOCK(sc);
41993746Sjulian	return;
42093746Sjulian}
42193746Sjulian
42293746Sjulian
42393746Sjulian/*
42493746Sjulian * Invoke autonegotiation on a PHY.
42593746Sjulian */
42693746Sjulianstatic void
42793746Sjulianmy_autoneg_mii(struct my_softc * sc, int flag, int verbose)
42893746Sjulian{
42993746Sjulian	u_int16_t       phy_sts = 0, media, advert, ability;
43093746Sjulian	u_int16_t       ability2 = 0;
43193746Sjulian	struct ifnet   *ifp;
43293746Sjulian	struct ifmedia *ifm;
43393746Sjulian
43493746Sjulian	MY_LOCK(sc);
43593746Sjulian
43693746Sjulian	ifm = &sc->ifmedia;
43793746Sjulian	ifp = &sc->arpcom.ac_if;
43893746Sjulian
43993746Sjulian	ifm->ifm_media = IFM_ETHER | IFM_AUTO;
44093746Sjulian
44193746Sjulian#ifndef FORCE_AUTONEG_TFOUR
44293746Sjulian	/*
44393746Sjulian	 * First, see if autoneg is supported. If not, there's no point in
44493746Sjulian	 * continuing.
44593746Sjulian	 */
44693746Sjulian	phy_sts = my_phy_readreg(sc, PHY_BMSR);
44793746Sjulian	if (!(phy_sts & PHY_BMSR_CANAUTONEG)) {
44893746Sjulian		if (verbose)
44993746Sjulian			printf("my%d: autonegotiation not supported\n",
45093746Sjulian			    sc->my_unit);
45193746Sjulian		ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX;
45293746Sjulian		MY_UNLOCK(sc);
45393746Sjulian		return;
45493746Sjulian	}
45593746Sjulian#endif
45693746Sjulian	switch (flag) {
45793746Sjulian	case MY_FLAG_FORCEDELAY:
45893746Sjulian		/*
45993746Sjulian		 * XXX Never use this option anywhere but in the probe
46093746Sjulian		 * routine: making the kernel stop dead in its tracks for
46193746Sjulian		 * three whole seconds after we've gone multi-user is really
46293746Sjulian		 * bad manners.
46393746Sjulian		 */
46493746Sjulian		my_autoneg_xmit(sc);
46593746Sjulian		DELAY(5000000);
46693746Sjulian		break;
46793746Sjulian	case MY_FLAG_SCHEDDELAY:
46893746Sjulian		/*
46993746Sjulian		 * Wait for the transmitter to go idle before starting an
47093746Sjulian		 * autoneg session, otherwise my_start() may clobber our
47193746Sjulian		 * timeout, and we don't want to allow transmission during an
47293746Sjulian		 * autoneg session since that can screw it up.
47393746Sjulian		 */
47493746Sjulian		if (sc->my_cdata.my_tx_head != NULL) {
47593746Sjulian			sc->my_want_auto = 1;
47693746Sjulian			MY_UNLOCK(sc);
47793746Sjulian			return;
47893746Sjulian		}
47993746Sjulian		my_autoneg_xmit(sc);
48093746Sjulian		ifp->if_timer = 5;
48193746Sjulian		sc->my_autoneg = 1;
48293746Sjulian		sc->my_want_auto = 0;
48393746Sjulian		MY_UNLOCK(sc);
48493746Sjulian		return;
48593746Sjulian	case MY_FLAG_DELAYTIMEO:
48693746Sjulian		ifp->if_timer = 0;
48793746Sjulian		sc->my_autoneg = 0;
48893746Sjulian		break;
48993746Sjulian	default:
49093746Sjulian		printf("my%d: invalid autoneg flag: %d\n", sc->my_unit, flag);
49193746Sjulian		MY_UNLOCK(sc);
49293746Sjulian		return;
49393746Sjulian	}
49493746Sjulian
49593746Sjulian	if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_AUTONEGCOMP) {
49693746Sjulian		if (verbose)
49793746Sjulian			printf("my%d: autoneg complete, ", sc->my_unit);
49893746Sjulian		phy_sts = my_phy_readreg(sc, PHY_BMSR);
49993746Sjulian	} else {
50093746Sjulian		if (verbose)
50193746Sjulian			printf("my%d: autoneg not complete, ", sc->my_unit);
50293746Sjulian	}
50393746Sjulian
50493746Sjulian	media = my_phy_readreg(sc, PHY_BMCR);
50593746Sjulian
50693746Sjulian	/* Link is good. Report modes and set duplex mode. */
50793746Sjulian	if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT) {
50893746Sjulian		if (verbose)
50993746Sjulian			printf("my%d: link status good. ", sc->my_unit);
51093746Sjulian		advert = my_phy_readreg(sc, PHY_ANAR);
51193746Sjulian		ability = my_phy_readreg(sc, PHY_LPAR);
51293746Sjulian		if ((sc->my_pinfo->my_vid == MarvellPHYID0) ||
51393746Sjulian		    (sc->my_pinfo->my_vid == LevelOnePHYID0)) {
51493746Sjulian			ability2 = my_phy_readreg(sc, PHY_1000SR);
51593746Sjulian			if (ability2 & PHY_1000SR_1000BTXFULL) {
51693746Sjulian				advert = 0;
51793746Sjulian				ability = 0;
51893746Sjulian				/*
51993746Sjulian				 * this version did not support 1000M,
52093746Sjulian				 * ifm->ifm_media =
52195673Sphk				 * IFM_ETHER|IFM_1000_T|IFM_FDX;
52293746Sjulian				 */
52393746Sjulian				ifm->ifm_media =
52493746Sjulian				    IFM_ETHER | IFM_100_TX | IFM_FDX;
52593746Sjulian				media &= ~PHY_BMCR_SPEEDSEL;
52693746Sjulian				media |= PHY_BMCR_1000;
52793746Sjulian				media |= PHY_BMCR_DUPLEX;
52893746Sjulian				printf("(full-duplex, 1000Mbps)\n");
52993746Sjulian			} else if (ability2 & PHY_1000SR_1000BTXHALF) {
53093746Sjulian				advert = 0;
53193746Sjulian				ability = 0;
53293746Sjulian				/*
53393746Sjulian				 * this version did not support 1000M,
53495673Sphk				 * ifm->ifm_media = IFM_ETHER|IFM_1000_T;
53593746Sjulian				 */
53693746Sjulian				ifm->ifm_media = IFM_ETHER | IFM_100_TX;
53793746Sjulian				media &= ~PHY_BMCR_SPEEDSEL;
53893746Sjulian				media &= ~PHY_BMCR_DUPLEX;
53993746Sjulian				media |= PHY_BMCR_1000;
54093746Sjulian				printf("(half-duplex, 1000Mbps)\n");
54193746Sjulian			}
54293746Sjulian		}
54393746Sjulian		if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) {
54493746Sjulian			ifm->ifm_media = IFM_ETHER | IFM_100_T4;
54593746Sjulian			media |= PHY_BMCR_SPEEDSEL;
54693746Sjulian			media &= ~PHY_BMCR_DUPLEX;
54793746Sjulian			printf("(100baseT4)\n");
54893746Sjulian		} else if (advert & PHY_ANAR_100BTXFULL &&
54993746Sjulian			   ability & PHY_ANAR_100BTXFULL) {
55093746Sjulian			ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX;
55193746Sjulian			media |= PHY_BMCR_SPEEDSEL;
55293746Sjulian			media |= PHY_BMCR_DUPLEX;
55393746Sjulian			printf("(full-duplex, 100Mbps)\n");
55493746Sjulian		} else if (advert & PHY_ANAR_100BTXHALF &&
55593746Sjulian			   ability & PHY_ANAR_100BTXHALF) {
55693746Sjulian			ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX;
55793746Sjulian			media |= PHY_BMCR_SPEEDSEL;
55893746Sjulian			media &= ~PHY_BMCR_DUPLEX;
55993746Sjulian			printf("(half-duplex, 100Mbps)\n");
56093746Sjulian		} else if (advert & PHY_ANAR_10BTFULL &&
56193746Sjulian			   ability & PHY_ANAR_10BTFULL) {
56293746Sjulian			ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX;
56393746Sjulian			media &= ~PHY_BMCR_SPEEDSEL;
56493746Sjulian			media |= PHY_BMCR_DUPLEX;
56593746Sjulian			printf("(full-duplex, 10Mbps)\n");
56693746Sjulian		} else if (advert) {
56793746Sjulian			ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX;
56893746Sjulian			media &= ~PHY_BMCR_SPEEDSEL;
56993746Sjulian			media &= ~PHY_BMCR_DUPLEX;
57093746Sjulian			printf("(half-duplex, 10Mbps)\n");
57193746Sjulian		}
57293746Sjulian		media &= ~PHY_BMCR_AUTONEGENBL;
57393746Sjulian
57493746Sjulian		/* Set ASIC's duplex mode to match the PHY. */
57593746Sjulian		my_phy_writereg(sc, PHY_BMCR, media);
57693746Sjulian		my_setcfg(sc, media);
57793746Sjulian	} else {
57893746Sjulian		if (verbose)
57993746Sjulian			printf("my%d: no carrier\n", sc->my_unit);
58093746Sjulian	}
58193746Sjulian
58293746Sjulian	my_init(sc);
58393746Sjulian	if (sc->my_tx_pend) {
58493746Sjulian		sc->my_autoneg = 0;
58593746Sjulian		sc->my_tx_pend = 0;
58693746Sjulian		my_start(ifp);
58793746Sjulian	}
58893746Sjulian	MY_UNLOCK(sc);
58993746Sjulian	return;
59093746Sjulian}
59193746Sjulian
59293746Sjulian/*
59393746Sjulian * To get PHY ability.
59493746Sjulian */
59593746Sjulianstatic void
59693746Sjulianmy_getmode_mii(struct my_softc * sc)
59793746Sjulian{
59893746Sjulian	u_int16_t       bmsr;
59993746Sjulian	struct ifnet   *ifp;
60093746Sjulian
60193746Sjulian	MY_LOCK(sc);
60293746Sjulian	ifp = &sc->arpcom.ac_if;
60393746Sjulian	bmsr = my_phy_readreg(sc, PHY_BMSR);
60493746Sjulian	if (bootverbose)
60593746Sjulian		printf("my%d: PHY status word: %x\n", sc->my_unit, bmsr);
60693746Sjulian
60793746Sjulian	/* fallback */
60893746Sjulian	sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX;
60993746Sjulian
61093746Sjulian	if (bmsr & PHY_BMSR_10BTHALF) {
61193746Sjulian		if (bootverbose)
61293746Sjulian			printf("my%d: 10Mbps half-duplex mode supported\n",
61393746Sjulian			       sc->my_unit);
61493746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_HDX,
61593746Sjulian		    0, NULL);
61693746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T, 0, NULL);
61793746Sjulian	}
61893746Sjulian	if (bmsr & PHY_BMSR_10BTFULL) {
61993746Sjulian		if (bootverbose)
62093746Sjulian			printf("my%d: 10Mbps full-duplex mode supported\n",
62193746Sjulian			    sc->my_unit);
62293746Sjulian
62393746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_FDX,
62493746Sjulian		    0, NULL);
62593746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX;
62693746Sjulian	}
62793746Sjulian	if (bmsr & PHY_BMSR_100BTXHALF) {
62893746Sjulian		if (bootverbose)
62993746Sjulian			printf("my%d: 100Mbps half-duplex mode supported\n",
63093746Sjulian			       sc->my_unit);
63193746Sjulian		ifp->if_baudrate = 100000000;
63293746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX, 0, NULL);
63393746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_HDX,
63493746Sjulian			    0, NULL);
63593746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX;
63693746Sjulian	}
63793746Sjulian	if (bmsr & PHY_BMSR_100BTXFULL) {
63893746Sjulian		if (bootverbose)
63993746Sjulian			printf("my%d: 100Mbps full-duplex mode supported\n",
64093746Sjulian			    sc->my_unit);
64193746Sjulian		ifp->if_baudrate = 100000000;
64293746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_FDX,
64393746Sjulian		    0, NULL);
64493746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX;
64593746Sjulian	}
64693746Sjulian	/* Some also support 100BaseT4. */
64793746Sjulian	if (bmsr & PHY_BMSR_100BT4) {
64893746Sjulian		if (bootverbose)
64993746Sjulian			printf("my%d: 100baseT4 mode supported\n", sc->my_unit);
65093746Sjulian		ifp->if_baudrate = 100000000;
65193746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_T4, 0, NULL);
65293746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_T4;
65393746Sjulian#ifdef FORCE_AUTONEG_TFOUR
65493746Sjulian		if (bootverbose)
65593746Sjulian			printf("my%d: forcing on autoneg support for BT4\n",
65693746Sjulian			    sc->my_unit);
65793746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0 NULL):
65893746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO;
65993746Sjulian#endif
66093746Sjulian	}
66194863Sjulian#if 0				/* this version did not support 1000M, */
66293746Sjulian	if (sc->my_pinfo->my_vid == MarvellPHYID0) {
66393746Sjulian		if (bootverbose)
66493746Sjulian			printf("my%d: 1000Mbps half-duplex mode supported\n",
66593746Sjulian			       sc->my_unit);
66693746Sjulian
66793746Sjulian		ifp->if_baudrate = 1000000000;
66895673Sphk		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T, 0, NULL);
66995673Sphk		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_HDX,
67093746Sjulian		    0, NULL);
67193746Sjulian		if (bootverbose)
67293746Sjulian			printf("my%d: 1000Mbps full-duplex mode supported\n",
67393746Sjulian			   sc->my_unit);
67493746Sjulian		ifp->if_baudrate = 1000000000;
67595673Sphk		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_FDX,
67693746Sjulian		    0, NULL);
67795673Sphk		sc->ifmedia.ifm_media = IFM_ETHER | IFM_1000_T | IFM_FDX;
67893746Sjulian	}
67993746Sjulian#endif
68093746Sjulian	if (bmsr & PHY_BMSR_CANAUTONEG) {
68193746Sjulian		if (bootverbose)
68293746Sjulian			printf("my%d: autoneg supported\n", sc->my_unit);
68393746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL);
68493746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO;
68593746Sjulian	}
68693746Sjulian	MY_UNLOCK(sc);
68793746Sjulian	return;
68893746Sjulian}
68993746Sjulian
69093746Sjulian/*
69193746Sjulian * Set speed and duplex mode.
69293746Sjulian */
69393746Sjulianstatic void
69493746Sjulianmy_setmode_mii(struct my_softc * sc, int media)
69593746Sjulian{
69693746Sjulian	u_int16_t       bmcr;
69793746Sjulian	struct ifnet   *ifp;
69893746Sjulian
69993746Sjulian	MY_LOCK(sc);
70093746Sjulian	ifp = &sc->arpcom.ac_if;
70193746Sjulian	/*
70293746Sjulian	 * If an autoneg session is in progress, stop it.
70393746Sjulian	 */
70493746Sjulian	if (sc->my_autoneg) {
70593746Sjulian		printf("my%d: canceling autoneg session\n", sc->my_unit);
70693746Sjulian		ifp->if_timer = sc->my_autoneg = sc->my_want_auto = 0;
70793746Sjulian		bmcr = my_phy_readreg(sc, PHY_BMCR);
70893746Sjulian		bmcr &= ~PHY_BMCR_AUTONEGENBL;
70993746Sjulian		my_phy_writereg(sc, PHY_BMCR, bmcr);
71093746Sjulian	}
71193746Sjulian	printf("my%d: selecting MII, ", sc->my_unit);
71293746Sjulian	bmcr = my_phy_readreg(sc, PHY_BMCR);
71393746Sjulian	bmcr &= ~(PHY_BMCR_AUTONEGENBL | PHY_BMCR_SPEEDSEL | PHY_BMCR_1000 |
71493746Sjulian		  PHY_BMCR_DUPLEX | PHY_BMCR_LOOPBK);
71594863Sjulian
71694863Sjulian#if 0				/* this version did not support 1000M, */
71795673Sphk	if (IFM_SUBTYPE(media) == IFM_1000_T) {
71893746Sjulian		printf("1000Mbps/T4, half-duplex\n");
71993746Sjulian		bmcr &= ~PHY_BMCR_SPEEDSEL;
72093746Sjulian		bmcr &= ~PHY_BMCR_DUPLEX;
72193746Sjulian		bmcr |= PHY_BMCR_1000;
72293746Sjulian	}
72393746Sjulian#endif
72493746Sjulian	if (IFM_SUBTYPE(media) == IFM_100_T4) {
72593746Sjulian		printf("100Mbps/T4, half-duplex\n");
72693746Sjulian		bmcr |= PHY_BMCR_SPEEDSEL;
72793746Sjulian		bmcr &= ~PHY_BMCR_DUPLEX;
72893746Sjulian	}
72993746Sjulian	if (IFM_SUBTYPE(media) == IFM_100_TX) {
73093746Sjulian		printf("100Mbps, ");
73193746Sjulian		bmcr |= PHY_BMCR_SPEEDSEL;
73293746Sjulian	}
73393746Sjulian	if (IFM_SUBTYPE(media) == IFM_10_T) {
73493746Sjulian		printf("10Mbps, ");
73593746Sjulian		bmcr &= ~PHY_BMCR_SPEEDSEL;
73693746Sjulian	}
73793746Sjulian	if ((media & IFM_GMASK) == IFM_FDX) {
73893746Sjulian		printf("full duplex\n");
73993746Sjulian		bmcr |= PHY_BMCR_DUPLEX;
74093746Sjulian	} else {
74193746Sjulian		printf("half duplex\n");
74293746Sjulian		bmcr &= ~PHY_BMCR_DUPLEX;
74393746Sjulian	}
74493746Sjulian	my_phy_writereg(sc, PHY_BMCR, bmcr);
74593746Sjulian	my_setcfg(sc, bmcr);
74693746Sjulian	MY_UNLOCK(sc);
74793746Sjulian	return;
74893746Sjulian}
74993746Sjulian
75093746Sjulian/*
75193746Sjulian * The Myson manual states that in order to fiddle with the 'full-duplex' and
75293746Sjulian * '100Mbps' bits in the netconfig register, we first have to put the
75393746Sjulian * transmit and/or receive logic in the idle state.
75493746Sjulian */
75593746Sjulianstatic void
75693746Sjulianmy_setcfg(struct my_softc * sc, int bmcr)
75793746Sjulian{
75893746Sjulian	int             i, restart = 0;
75993746Sjulian
76093746Sjulian	MY_LOCK(sc);
76193746Sjulian	if (CSR_READ_4(sc, MY_TCRRCR) & (MY_TE | MY_RE)) {
76293746Sjulian		restart = 1;
76393746Sjulian		MY_CLRBIT(sc, MY_TCRRCR, (MY_TE | MY_RE));
76493746Sjulian		for (i = 0; i < MY_TIMEOUT; i++) {
76593746Sjulian			DELAY(10);
76693746Sjulian			if (!(CSR_READ_4(sc, MY_TCRRCR) &
76793746Sjulian			    (MY_TXRUN | MY_RXRUN)))
76893746Sjulian				break;
76993746Sjulian		}
77093746Sjulian		if (i == MY_TIMEOUT)
77193746Sjulian			printf("my%d: failed to force tx and rx to idle \n",
77293746Sjulian			    sc->my_unit);
77393746Sjulian	}
77493746Sjulian	MY_CLRBIT(sc, MY_TCRRCR, MY_PS1000);
77593746Sjulian	MY_CLRBIT(sc, MY_TCRRCR, MY_PS10);
77693746Sjulian	if (bmcr & PHY_BMCR_1000)
77793746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_PS1000);
77893746Sjulian	else if (!(bmcr & PHY_BMCR_SPEEDSEL))
77993746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_PS10);
78093746Sjulian	if (bmcr & PHY_BMCR_DUPLEX)
78193746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_FD);
78293746Sjulian	else
78393746Sjulian		MY_CLRBIT(sc, MY_TCRRCR, MY_FD);
78493746Sjulian	if (restart)
78593746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_TE | MY_RE);
78693746Sjulian	MY_UNLOCK(sc);
78793746Sjulian	return;
78893746Sjulian}
78993746Sjulian
79093746Sjulianstatic void
79193746Sjulianmy_reset(struct my_softc * sc)
79293746Sjulian{
79393746Sjulian	register int    i;
79493746Sjulian
79593746Sjulian	MY_LOCK(sc);
79693746Sjulian	MY_SETBIT(sc, MY_BCR, MY_SWR);
79793746Sjulian	for (i = 0; i < MY_TIMEOUT; i++) {
79893746Sjulian		DELAY(10);
79993746Sjulian		if (!(CSR_READ_4(sc, MY_BCR) & MY_SWR))
80093746Sjulian			break;
80193746Sjulian	}
80293746Sjulian	if (i == MY_TIMEOUT)
80393746Sjulian		printf("m0x%d: reset never completed!\n", sc->my_unit);
80493746Sjulian
80593746Sjulian	/* Wait a little while for the chip to get its brains in order. */
80693746Sjulian	DELAY(1000);
80793746Sjulian	MY_UNLOCK(sc);
80893746Sjulian	return;
80993746Sjulian}
81093746Sjulian
81193746Sjulian/*
81293746Sjulian * Probe for a Myson chip. Check the PCI vendor and device IDs against our
81393746Sjulian * list and return a device name if we find a match.
81493746Sjulian */
81593746Sjulianstatic int
81693746Sjulianmy_probe(device_t dev)
81793746Sjulian{
81893746Sjulian	struct my_type *t;
81993746Sjulian
82093746Sjulian	t = my_devs;
82193746Sjulian	while (t->my_name != NULL) {
82293746Sjulian		if ((pci_get_vendor(dev) == t->my_vid) &&
82393746Sjulian		    (pci_get_device(dev) == t->my_did)) {
82493746Sjulian			device_set_desc(dev, t->my_name);
82593746Sjulian			my_info_tmp = t;
82693746Sjulian			return (0);
82793746Sjulian		}
82893746Sjulian		t++;
82993746Sjulian	}
83093746Sjulian	return (ENXIO);
83193746Sjulian}
83293746Sjulian
83393746Sjulian/*
83493746Sjulian * Attach the interface. Allocate softc structures, do ifmedia setup and
83593746Sjulian * ethernet/BPF attach.
83693746Sjulian */
83793746Sjulianstatic int
83893746Sjulianmy_attach(device_t dev)
83993746Sjulian{
84093746Sjulian	int             s, i;
84193746Sjulian	u_char          eaddr[ETHER_ADDR_LEN];
84293746Sjulian	u_int32_t       command, iobase;
84393746Sjulian	struct my_softc *sc;
84493746Sjulian	struct ifnet   *ifp;
84593746Sjulian	int             media = IFM_ETHER | IFM_100_TX | IFM_FDX;
84693746Sjulian	unsigned int    round;
84793746Sjulian	caddr_t         roundptr;
84893746Sjulian	struct my_type *p;
84993746Sjulian	u_int16_t       phy_vid, phy_did, phy_sts = 0;
85093746Sjulian	int             rid, unit, error = 0;
85193746Sjulian
85293746Sjulian	s = splimp();
85393746Sjulian	sc = device_get_softc(dev);
85493746Sjulian	unit = device_get_unit(dev);
85593746Sjulian	if (sc == NULL) {
85693746Sjulian		printf("my%d: no memory for softc struct!\n", unit);
85793746Sjulian		error = ENXIO;
85893746Sjulian		goto fail;
85993746Sjulian
86093746Sjulian	}
86193746Sjulian	bzero(sc, sizeof(struct my_softc));
86295803Sjulian	mtx_init(&sc->my_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
86395803Sjulian	    MTX_DEF | MTX_RECURSE);
86493746Sjulian	MY_LOCK(sc);
86593746Sjulian
86693746Sjulian	/*
86793746Sjulian	 * Map control/status registers.
86893746Sjulian	 */
86994863Sjulian#if 0
87094863Sjulian	command = pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4);
87194863Sjulian	command |= (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN);
87294863Sjulian	pci_write_config(dev, PCI_COMMAND_STATUS_REG, command & 0x000000ff, 4);
87394863Sjulian	command = pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4);
87494863Sjulian#endif
87593746Sjulian	command = pci_read_config(dev, PCIR_COMMAND, 4);
87693746Sjulian	command |= (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN);
87793746Sjulian	pci_write_config(dev, PCIR_COMMAND, command & 0x000000ff, 4);
87893746Sjulian	command = pci_read_config(dev, PCIR_COMMAND, 4);
87993746Sjulian
88093746Sjulian	if (my_info_tmp->my_did == MTD800ID) {
88193746Sjulian		iobase = pci_read_config(dev, MY_PCI_LOIO, 4);
88293746Sjulian		if (iobase & 0x300)
88393746Sjulian			MY_USEIOSPACE = 0;
88493746Sjulian	}
88593746Sjulian	if (MY_USEIOSPACE) {
88693746Sjulian		if (!(command & PCIM_CMD_PORTEN)) {
88793746Sjulian			printf("my%d: failed to enable I/O ports!\n", unit);
88893746Sjulian			free(sc, M_DEVBUF);
88993746Sjulian			error = ENXIO;
89093746Sjulian			goto fail;
89193746Sjulian		}
89293746Sjulian#if 0
89394863Sjulian		if (!pci_map_port(config_id, MY_PCI_LOIO, (u_int16_t *) & (sc->my_bhandle))) {
89494863Sjulian			printf("my%d: couldn't map ports\n", unit);
89594863Sjulian			error = ENXIO;
89694863Sjulian			goto fail;
89793746Sjulian		}
89893746Sjulian
89993746Sjulian		sc->my_btag = I386_BUS_SPACE_IO;
90093746Sjulian#endif
90193746Sjulian	} else {
90293746Sjulian		if (!(command & PCIM_CMD_MEMEN)) {
90393746Sjulian			printf("my%d: failed to enable memory mapping!\n",
90493746Sjulian			    unit);
90593746Sjulian			error = ENXIO;
90693746Sjulian			goto fail;
90793746Sjulian		}
90893746Sjulian#if 0
90993746Sjulian		 if (!pci_map_mem(config_id, MY_PCI_LOMEM, &vbase, &pbase)) {
91093746Sjulian			printf ("my%d: couldn't map memory\n", unit);
91193746Sjulian			error = ENXIO;
91293746Sjulian			goto fail;
91393746Sjulian		}
91494863Sjulian		sc->my_btag = I386_BUS_SPACE_MEM;
91594863Sjulian		sc->my_bhandle = vbase;
91693746Sjulian#endif
91793746Sjulian	}
91893746Sjulian
91993746Sjulian	rid = MY_RID;
92093746Sjulian	sc->my_res = bus_alloc_resource(dev, MY_RES, &rid,
92193746Sjulian					0, ~0, 1, RF_ACTIVE);
92293746Sjulian
92393746Sjulian	if (sc->my_res == NULL) {
92493746Sjulian		printf("my%d: couldn't map ports/memory\n", unit);
92593746Sjulian		error = ENXIO;
92693746Sjulian		goto fail;
92793746Sjulian	}
92893746Sjulian	sc->my_btag = rman_get_bustag(sc->my_res);
92993746Sjulian	sc->my_bhandle = rman_get_bushandle(sc->my_res);
93093746Sjulian
93193746Sjulian	rid = 0;
93293746Sjulian	sc->my_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
93393746Sjulian					RF_SHAREABLE | RF_ACTIVE);
93493746Sjulian
93593746Sjulian	if (sc->my_irq == NULL) {
93693746Sjulian		printf("my%d: couldn't map interrupt\n", unit);
93793746Sjulian		bus_release_resource(dev, MY_RES, MY_RID, sc->my_res);
93893746Sjulian		error = ENXIO;
93993746Sjulian		goto fail;
94093746Sjulian	}
94193746Sjulian	error = bus_setup_intr(dev, sc->my_irq, INTR_TYPE_NET,
94293746Sjulian			       my_intr, sc, &sc->my_intrhand);
94393746Sjulian
94493746Sjulian	if (error) {
94593746Sjulian		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq);
94693746Sjulian		bus_release_resource(dev, MY_RES, MY_RID, sc->my_res);
94793746Sjulian		printf("my%d: couldn't set up irq\n", unit);
94893746Sjulian		goto fail;
94993746Sjulian	}
95093746Sjulian	callout_handle_init(&sc->my_stat_ch);
95193746Sjulian
95293746Sjulian	sc->my_info = my_info_tmp;
95393746Sjulian
95493746Sjulian	/* Reset the adapter. */
95593746Sjulian	my_reset(sc);
95693746Sjulian
95793746Sjulian	/*
95893746Sjulian	 * Get station address
95993746Sjulian	 */
96093746Sjulian	for (i = 0; i < ETHER_ADDR_LEN; ++i)
96193746Sjulian		eaddr[i] = CSR_READ_1(sc, MY_PAR0 + i);
96293746Sjulian
96393746Sjulian	/*
96493746Sjulian	 * A Myson chip was detected. Inform the world.
96593746Sjulian	 */
96693746Sjulian	printf("my%d: Ethernet address: %6D\n", unit, eaddr, ":");
96793746Sjulian
96893746Sjulian	sc->my_unit = unit;
96993746Sjulian	bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
97093746Sjulian
97193746Sjulian	sc->my_ldata_ptr = malloc(sizeof(struct my_list_data) + 8,
97293746Sjulian				  M_DEVBUF, M_NOWAIT);
97393746Sjulian	if (sc->my_ldata_ptr == NULL) {
97493746Sjulian		free(sc, M_DEVBUF);
97593746Sjulian		printf("my%d: no memory for list buffers!\n", unit);
97693746Sjulian		error = ENXIO;
97793746Sjulian		goto fail;
97893746Sjulian	}
97993746Sjulian	sc->my_ldata = (struct my_list_data *) sc->my_ldata_ptr;
98093746Sjulian	round = (unsigned int)sc->my_ldata_ptr & 0xF;
98193746Sjulian	roundptr = sc->my_ldata_ptr;
98293746Sjulian	for (i = 0; i < 8; i++) {
98393746Sjulian		if (round % 8) {
98493746Sjulian			round++;
98593746Sjulian			roundptr++;
98693746Sjulian		} else
98793746Sjulian			break;
98893746Sjulian	}
98993746Sjulian	sc->my_ldata = (struct my_list_data *) roundptr;
99093746Sjulian	bzero(sc->my_ldata, sizeof(struct my_list_data));
99193746Sjulian
99293746Sjulian	ifp = &sc->arpcom.ac_if;
99393746Sjulian	ifp->if_softc = sc;
99493746Sjulian	ifp->if_unit = unit;
99593746Sjulian	ifp->if_name = "my";
99693746Sjulian	ifp->if_mtu = ETHERMTU;
99793746Sjulian	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
99893746Sjulian	ifp->if_ioctl = my_ioctl;
99993746Sjulian	ifp->if_output = ether_output;
100093746Sjulian	ifp->if_start = my_start;
100193746Sjulian	ifp->if_watchdog = my_watchdog;
100293746Sjulian	ifp->if_init = my_init;
100393746Sjulian	ifp->if_baudrate = 10000000;
100493746Sjulian	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
100593746Sjulian
100693746Sjulian	if (sc->my_info->my_did == MTD803ID)
100793746Sjulian		sc->my_pinfo = my_phys;
100893746Sjulian	else {
100993746Sjulian		if (bootverbose)
101093746Sjulian			printf("my%d: probing for a PHY\n", sc->my_unit);
101193746Sjulian		for (i = MY_PHYADDR_MIN; i < MY_PHYADDR_MAX + 1; i++) {
101293746Sjulian			if (bootverbose)
101393746Sjulian				printf("my%d: checking address: %d\n",
101493746Sjulian				    sc->my_unit, i);
101593746Sjulian			sc->my_phy_addr = i;
101693746Sjulian			phy_sts = my_phy_readreg(sc, PHY_BMSR);
101793746Sjulian			if ((phy_sts != 0) && (phy_sts != 0xffff))
101893746Sjulian				break;
101993746Sjulian			else
102093746Sjulian				phy_sts = 0;
102193746Sjulian		}
102293746Sjulian		if (phy_sts) {
102393746Sjulian			phy_vid = my_phy_readreg(sc, PHY_VENID);
102493746Sjulian			phy_did = my_phy_readreg(sc, PHY_DEVID);
102593746Sjulian			if (bootverbose) {
102693746Sjulian				printf("my%d: found PHY at address %d, ",
102793746Sjulian				    sc->my_unit, sc->my_phy_addr);
102893746Sjulian				printf("vendor id: %x device id: %x\n",
102993746Sjulian				    phy_vid, phy_did);
103093746Sjulian			}
103193746Sjulian			p = my_phys;
103293746Sjulian			while (p->my_vid) {
103393746Sjulian				if (phy_vid == p->my_vid) {
103493746Sjulian					sc->my_pinfo = p;
103593746Sjulian					break;
103693746Sjulian				}
103793746Sjulian				p++;
103893746Sjulian			}
103993746Sjulian			if (sc->my_pinfo == NULL)
104093746Sjulian				sc->my_pinfo = &my_phys[PHY_UNKNOWN];
104193746Sjulian			if (bootverbose)
104293746Sjulian				printf("my%d: PHY type: %s\n",
104393746Sjulian				       sc->my_unit, sc->my_pinfo->my_name);
104493746Sjulian		} else {
104593746Sjulian			printf("my%d: MII without any phy!\n", sc->my_unit);
104693746Sjulian			error = ENXIO;
104793746Sjulian			goto fail;
104893746Sjulian		}
104993746Sjulian	}
105093746Sjulian
105193746Sjulian	/* Do ifmedia setup. */
105293746Sjulian	ifmedia_init(&sc->ifmedia, 0, my_ifmedia_upd, my_ifmedia_sts);
105393746Sjulian	my_getmode_mii(sc);
105493746Sjulian	my_autoneg_mii(sc, MY_FLAG_FORCEDELAY, 1);
105593746Sjulian	media = sc->ifmedia.ifm_media;
105693746Sjulian	my_stop(sc);
105793746Sjulian	ifmedia_set(&sc->ifmedia, media);
105893746Sjulian
105993746Sjulian	ether_ifattach(ifp, ETHER_BPF_SUPPORTED);
106093746Sjulian
106193746Sjulian#if 0
106293746Sjulian	at_shutdown(my_shutdown, sc, SHUTDOWN_POST_SYNC);
106393746Sjulian	shutdownhook_establish(my_shutdown, sc);
106493746Sjulian#endif
106593746Sjulian
106693746Sjulian	MY_UNLOCK(sc);
106793746Sjulian	return (0);
106893746Sjulian
106993746Sjulianfail:
107093746Sjulian	MY_UNLOCK(sc);
107193746Sjulian	mtx_destroy(&sc->my_mtx);
107293746Sjulian	splx(s);
107393746Sjulian	return (error);
107493746Sjulian}
107593746Sjulian
107693746Sjulianstatic int
107793746Sjulianmy_detach(device_t dev)
107893746Sjulian{
107993746Sjulian	struct my_softc *sc;
108093746Sjulian	struct ifnet   *ifp;
108193746Sjulian	int             s;
108293746Sjulian
108393746Sjulian	s = splimp();
108493746Sjulian	sc = device_get_softc(dev);
108593746Sjulian	MY_LOCK(sc);
108693746Sjulian	ifp = &sc->arpcom.ac_if;
108793746Sjulian	ether_ifdetach(ifp, ETHER_BPF_SUPPORTED);
108893746Sjulian	my_stop(sc);
108993746Sjulian
109094863Sjulian#if 0
109194863Sjulian	bus_generic_detach(dev);
109294863Sjulian	device_delete_child(dev, sc->rl_miibus);
109394863Sjulian#endif
109494863Sjulian
109593746Sjulian	bus_teardown_intr(dev, sc->my_irq, sc->my_intrhand);
109693746Sjulian	bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq);
109793746Sjulian	bus_release_resource(dev, MY_RES, MY_RID, sc->my_res);
109894863Sjulian#if 0
109994863Sjulian	contigfree(sc->my_cdata.my_rx_buf, MY_RXBUFLEN + 32, M_DEVBUF);
110094863Sjulian#endif
110193746Sjulian	free(sc, M_DEVBUF);
110293746Sjulian	MY_UNLOCK(sc);
110393746Sjulian	splx(s);
110493746Sjulian	mtx_destroy(&sc->my_mtx);
110593746Sjulian	return (0);
110693746Sjulian}
110793746Sjulian
110893746Sjulian
110993746Sjulian/*
111093746Sjulian * Initialize the transmit descriptors.
111193746Sjulian */
111293746Sjulianstatic int
111393746Sjulianmy_list_tx_init(struct my_softc * sc)
111493746Sjulian{
111593746Sjulian	struct my_chain_data *cd;
111693746Sjulian	struct my_list_data *ld;
111793746Sjulian	int             i;
111893746Sjulian
111993746Sjulian	MY_LOCK(sc);
112093746Sjulian	cd = &sc->my_cdata;
112193746Sjulian	ld = sc->my_ldata;
112293746Sjulian	for (i = 0; i < MY_TX_LIST_CNT; i++) {
112393746Sjulian		cd->my_tx_chain[i].my_ptr = &ld->my_tx_list[i];
112493746Sjulian		if (i == (MY_TX_LIST_CNT - 1))
112593746Sjulian			cd->my_tx_chain[i].my_nextdesc = &cd->my_tx_chain[0];
112693746Sjulian		else
112793746Sjulian			cd->my_tx_chain[i].my_nextdesc =
112893746Sjulian			    &cd->my_tx_chain[i + 1];
112993746Sjulian	}
113093746Sjulian	cd->my_tx_free = &cd->my_tx_chain[0];
113193746Sjulian	cd->my_tx_tail = cd->my_tx_head = NULL;
113293746Sjulian	MY_UNLOCK(sc);
113393746Sjulian	return (0);
113493746Sjulian}
113593746Sjulian
113693746Sjulian/*
113793746Sjulian * Initialize the RX descriptors and allocate mbufs for them. Note that we
113893746Sjulian * arrange the descriptors in a closed ring, so that the last descriptor
113993746Sjulian * points back to the first.
114093746Sjulian */
114193746Sjulianstatic int
114293746Sjulianmy_list_rx_init(struct my_softc * sc)
114393746Sjulian{
114493746Sjulian	struct my_chain_data *cd;
114593746Sjulian	struct my_list_data *ld;
114693746Sjulian	int             i;
114793746Sjulian
114893746Sjulian	MY_LOCK(sc);
114993746Sjulian	cd = &sc->my_cdata;
115093746Sjulian	ld = sc->my_ldata;
115193746Sjulian	for (i = 0; i < MY_RX_LIST_CNT; i++) {
115293746Sjulian		cd->my_rx_chain[i].my_ptr =
115393746Sjulian		    (struct my_desc *) & ld->my_rx_list[i];
115493746Sjulian		if (my_newbuf(sc, &cd->my_rx_chain[i]) == ENOBUFS)
115593746Sjulian			return (ENOBUFS);
115693746Sjulian		if (i == (MY_RX_LIST_CNT - 1)) {
115793746Sjulian			cd->my_rx_chain[i].my_nextdesc = &cd->my_rx_chain[0];
115893746Sjulian			ld->my_rx_list[i].my_next = vtophys(&ld->my_rx_list[0]);
115993746Sjulian		} else {
116093746Sjulian			cd->my_rx_chain[i].my_nextdesc =
116193746Sjulian			    &cd->my_rx_chain[i + 1];
116293746Sjulian			ld->my_rx_list[i].my_next =
116393746Sjulian			    vtophys(&ld->my_rx_list[i + 1]);
116493746Sjulian		}
116593746Sjulian	}
116693746Sjulian	cd->my_rx_head = &cd->my_rx_chain[0];
116793746Sjulian	MY_UNLOCK(sc);
116893746Sjulian	return (0);
116993746Sjulian}
117093746Sjulian
117193746Sjulian/*
117293746Sjulian * Initialize an RX descriptor and attach an MBUF cluster.
117393746Sjulian */
117493746Sjulianstatic int
117593746Sjulianmy_newbuf(struct my_softc * sc, struct my_chain_onefrag * c)
117693746Sjulian{
117793746Sjulian	struct mbuf    *m_new = NULL;
117893746Sjulian
117993746Sjulian	MY_LOCK(sc);
118093746Sjulian	MGETHDR(m_new, M_DONTWAIT, MT_DATA);
118193746Sjulian	if (m_new == NULL) {
118293746Sjulian		printf("my%d: no memory for rx list -- packet dropped!\n",
118393746Sjulian		       sc->my_unit);
118495939Sjulian		MY_UNLOCK(sc);
118593746Sjulian		return (ENOBUFS);
118693746Sjulian	}
118793746Sjulian	MCLGET(m_new, M_DONTWAIT);
118893746Sjulian	if (!(m_new->m_flags & M_EXT)) {
118993746Sjulian		printf("my%d: no memory for rx list -- packet dropped!\n",
119093746Sjulian		       sc->my_unit);
119193746Sjulian		m_freem(m_new);
119295939Sjulian		MY_UNLOCK(sc);
119393746Sjulian		return (ENOBUFS);
119493746Sjulian	}
119593746Sjulian	c->my_mbuf = m_new;
119693746Sjulian	c->my_ptr->my_data = vtophys(mtod(m_new, caddr_t));
119793746Sjulian	c->my_ptr->my_ctl = (MCLBYTES - 1) << MY_RBSShift;
119893746Sjulian	c->my_ptr->my_status = MY_OWNByNIC;
119993746Sjulian	MY_UNLOCK(sc);
120093746Sjulian	return (0);
120193746Sjulian}
120293746Sjulian
120393746Sjulian/*
120493746Sjulian * A frame has been uploaded: pass the resulting mbuf chain up to the higher
120593746Sjulian * level protocols.
120693746Sjulian */
120793746Sjulianstatic void
120893746Sjulianmy_rxeof(struct my_softc * sc)
120993746Sjulian{
121093746Sjulian	struct ether_header *eh;
121193746Sjulian	struct mbuf    *m;
121293746Sjulian	struct ifnet   *ifp;
121393746Sjulian	struct my_chain_onefrag *cur_rx;
121493746Sjulian	int             total_len = 0;
121593746Sjulian	u_int32_t       rxstat;
121693746Sjulian
121793746Sjulian	MY_LOCK(sc);
121893746Sjulian	ifp = &sc->arpcom.ac_if;
121993746Sjulian	while (!((rxstat = sc->my_cdata.my_rx_head->my_ptr->my_status)
122093746Sjulian	    & MY_OWNByNIC)) {
122193746Sjulian		cur_rx = sc->my_cdata.my_rx_head;
122293746Sjulian		sc->my_cdata.my_rx_head = cur_rx->my_nextdesc;
122393746Sjulian
122493746Sjulian		if (rxstat & MY_ES) {	/* error summary: give up this rx pkt */
122593746Sjulian			ifp->if_ierrors++;
122693746Sjulian			cur_rx->my_ptr->my_status = MY_OWNByNIC;
122793746Sjulian			continue;
122893746Sjulian		}
122993746Sjulian		/* No errors; receive the packet. */
123093746Sjulian		total_len = (rxstat & MY_FLNGMASK) >> MY_FLNGShift;
123193746Sjulian		total_len -= ETHER_CRC_LEN;
123293746Sjulian
123393746Sjulian		if (total_len < MINCLSIZE) {
123493746Sjulian			m = m_devget(mtod(cur_rx->my_mbuf, char *),
123593746Sjulian			    total_len, 0, ifp, NULL);
123693746Sjulian			cur_rx->my_ptr->my_status = MY_OWNByNIC;
123793746Sjulian			if (m == NULL) {
123893746Sjulian				ifp->if_ierrors++;
123993746Sjulian				continue;
124093746Sjulian			}
124193746Sjulian		} else {
124293746Sjulian			m = cur_rx->my_mbuf;
124393746Sjulian			/*
124493746Sjulian			 * Try to conjure up a new mbuf cluster. If that
124593746Sjulian			 * fails, it means we have an out of memory condition
124693746Sjulian			 * and should leave the buffer in place and continue.
124793746Sjulian			 * This will result in a lost packet, but there's
124893746Sjulian			 * little else we can do in this situation.
124993746Sjulian			 */
125093746Sjulian			if (my_newbuf(sc, cur_rx) == ENOBUFS) {
125193746Sjulian				ifp->if_ierrors++;
125293746Sjulian				cur_rx->my_ptr->my_status = MY_OWNByNIC;
125393746Sjulian				continue;
125493746Sjulian			}
125593746Sjulian			m->m_pkthdr.rcvif = ifp;
125693746Sjulian			m->m_pkthdr.len = m->m_len = total_len;
125793746Sjulian		}
125893746Sjulian		ifp->if_ipackets++;
125993746Sjulian		eh = mtod(m, struct ether_header *);
126093746Sjulian#if NBPFILTER > 0
126193746Sjulian		/*
126293746Sjulian		 * Handle BPF listeners. Let the BPF user see the packet, but
126393746Sjulian		 * don't pass it up to the ether_input() layer unless it's a
126493746Sjulian		 * broadcast packet, multicast packet, matches our ethernet
126593746Sjulian		 * address or the interface is in promiscuous mode.
126693746Sjulian		 */
126793746Sjulian		if (ifp->if_bpf) {
126893746Sjulian			bpf_mtap(ifp, m);
126993746Sjulian			if (ifp->if_flags & IFF_PROMISC &&
127093746Sjulian			    (bcmp(eh->ether_dhost, sc->arpcom.ac_enaddr,
127193746Sjulian				ETHER_ADDR_LEN) &&
127293746Sjulian			     (eh->ether_dhost[0] & 1) == 0)) {
127393746Sjulian				m_freem(m);
127493746Sjulian				continue;
127593746Sjulian			}
127693746Sjulian		}
127793746Sjulian#endif
127893746Sjulian		/* Remove header from mbuf and pass it on. */
127993746Sjulian		m_adj(m, sizeof(struct ether_header));
128093746Sjulian		ether_input(ifp, eh, m);
128193746Sjulian	}
128293746Sjulian	MY_UNLOCK(sc);
128393746Sjulian	return;
128493746Sjulian}
128593746Sjulian
128693746Sjulian
128793746Sjulian/*
128893746Sjulian * A frame was downloaded to the chip. It's safe for us to clean up the list
128993746Sjulian * buffers.
129093746Sjulian */
129193746Sjulianstatic void
129293746Sjulianmy_txeof(struct my_softc * sc)
129393746Sjulian{
129493746Sjulian	struct my_chain *cur_tx;
129593746Sjulian	struct ifnet   *ifp;
129693746Sjulian
129793746Sjulian	MY_LOCK(sc);
129893746Sjulian	ifp = &sc->arpcom.ac_if;
129993746Sjulian	/* Clear the timeout timer. */
130093746Sjulian	ifp->if_timer = 0;
130195939Sjulian	if (sc->my_cdata.my_tx_head == NULL) {
130295939Sjulian		MY_UNLOCK(sc);
130393746Sjulian		return;
130495939Sjulian	}
130593746Sjulian	/*
130693746Sjulian	 * Go through our tx list and free mbufs for those frames that have
130793746Sjulian	 * been transmitted.
130893746Sjulian	 */
130993746Sjulian	while (sc->my_cdata.my_tx_head->my_mbuf != NULL) {
131093746Sjulian		u_int32_t       txstat;
131193746Sjulian
131293746Sjulian		cur_tx = sc->my_cdata.my_tx_head;
131393746Sjulian		txstat = MY_TXSTATUS(cur_tx);
131493746Sjulian		if ((txstat & MY_OWNByNIC) || txstat == MY_UNSENT)
131593746Sjulian			break;
131693746Sjulian		if (!(CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced)) {
131793746Sjulian			if (txstat & MY_TXERR) {
131893746Sjulian				ifp->if_oerrors++;
131993746Sjulian				if (txstat & MY_EC) /* excessive collision */
132093746Sjulian					ifp->if_collisions++;
132193746Sjulian				if (txstat & MY_LC)	/* late collision */
132293746Sjulian					ifp->if_collisions++;
132393746Sjulian			}
132493746Sjulian			ifp->if_collisions += (txstat & MY_NCRMASK) >>
132593746Sjulian			    MY_NCRShift;
132693746Sjulian		}
132793746Sjulian		ifp->if_opackets++;
132893746Sjulian		m_freem(cur_tx->my_mbuf);
132993746Sjulian		cur_tx->my_mbuf = NULL;
133093746Sjulian		if (sc->my_cdata.my_tx_head == sc->my_cdata.my_tx_tail) {
133193746Sjulian			sc->my_cdata.my_tx_head = NULL;
133293746Sjulian			sc->my_cdata.my_tx_tail = NULL;
133393746Sjulian			break;
133493746Sjulian		}
133593746Sjulian		sc->my_cdata.my_tx_head = cur_tx->my_nextdesc;
133693746Sjulian	}
133793746Sjulian	if (CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced) {
133893746Sjulian		ifp->if_collisions += (CSR_READ_4(sc, MY_TSR) & MY_NCRMask);
133993746Sjulian	}
134093746Sjulian	MY_UNLOCK(sc);
134193746Sjulian	return;
134293746Sjulian}
134393746Sjulian
134493746Sjulian/*
134593746Sjulian * TX 'end of channel' interrupt handler.
134693746Sjulian */
134793746Sjulianstatic void
134893746Sjulianmy_txeoc(struct my_softc * sc)
134993746Sjulian{
135093746Sjulian	struct ifnet   *ifp;
135193746Sjulian
135293746Sjulian	MY_LOCK(sc);
135393746Sjulian	ifp = &sc->arpcom.ac_if;
135493746Sjulian	ifp->if_timer = 0;
135593746Sjulian	if (sc->my_cdata.my_tx_head == NULL) {
135693746Sjulian		ifp->if_flags &= ~IFF_OACTIVE;
135793746Sjulian		sc->my_cdata.my_tx_tail = NULL;
135893746Sjulian		if (sc->my_want_auto)
135993746Sjulian			my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1);
136093746Sjulian	} else {
136193746Sjulian		if (MY_TXOWN(sc->my_cdata.my_tx_head) == MY_UNSENT) {
136293746Sjulian			MY_TXOWN(sc->my_cdata.my_tx_head) = MY_OWNByNIC;
136393746Sjulian			ifp->if_timer = 5;
136493746Sjulian			CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF);
136593746Sjulian		}
136693746Sjulian	}
136793746Sjulian	MY_UNLOCK(sc);
136893746Sjulian	return;
136993746Sjulian}
137093746Sjulian
137193746Sjulianstatic void
137293746Sjulianmy_intr(void *arg)
137393746Sjulian{
137493746Sjulian	struct my_softc *sc;
137593746Sjulian	struct ifnet   *ifp;
137693746Sjulian	u_int32_t       status;
137793746Sjulian
137893746Sjulian	sc = arg;
137993746Sjulian	MY_LOCK(sc);
138093746Sjulian	ifp = &sc->arpcom.ac_if;
138193746Sjulian	if (!(ifp->if_flags & IFF_UP)) {
138293746Sjulian		MY_UNLOCK(sc);
138393746Sjulian		return;
138493746Sjulian	}
138593746Sjulian	/* Disable interrupts. */
138693746Sjulian	CSR_WRITE_4(sc, MY_IMR, 0x00000000);
138793746Sjulian
138893746Sjulian	for (;;) {
138993746Sjulian		status = CSR_READ_4(sc, MY_ISR);
139093746Sjulian		status &= MY_INTRS;
139193746Sjulian		if (status)
139293746Sjulian			CSR_WRITE_4(sc, MY_ISR, status);
139393746Sjulian		else
139493746Sjulian			break;
139593746Sjulian
139693746Sjulian		if (status & MY_RI)	/* receive interrupt */
139793746Sjulian			my_rxeof(sc);
139893746Sjulian
139993746Sjulian		if ((status & MY_RBU) || (status & MY_RxErr)) {
140093746Sjulian			/* rx buffer unavailable or rx error */
140193746Sjulian			ifp->if_ierrors++;
140293746Sjulian#ifdef foo
140393746Sjulian			my_stop(sc);
140493746Sjulian			my_reset(sc);
140593746Sjulian			my_init(sc);
140693746Sjulian#endif
140793746Sjulian		}
140893746Sjulian		if (status & MY_TI)	/* tx interrupt */
140993746Sjulian			my_txeof(sc);
141093746Sjulian		if (status & MY_ETI)	/* tx early interrupt */
141193746Sjulian			my_txeof(sc);
141293746Sjulian		if (status & MY_TBU)	/* tx buffer unavailable */
141393746Sjulian			my_txeoc(sc);
141494863Sjulian
141594863Sjulian#if 0				/* 90/1/18 delete */
141694863Sjulian		if (status & MY_FBE) {
141794863Sjulian			my_reset(sc);
141894863Sjulian			my_init(sc);
141994863Sjulian		}
142094863Sjulian#endif
142194863Sjulian
142293746Sjulian	}
142393746Sjulian
142493746Sjulian	/* Re-enable interrupts. */
142593746Sjulian	CSR_WRITE_4(sc, MY_IMR, MY_INTRS);
142693746Sjulian	if (ifp->if_snd.ifq_head != NULL)
142793746Sjulian		my_start(ifp);
142893746Sjulian	MY_UNLOCK(sc);
142993746Sjulian	return;
143093746Sjulian}
143193746Sjulian
143293746Sjulian/*
143393746Sjulian * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data
143493746Sjulian * pointers to the fragment pointers.
143593746Sjulian */
143693746Sjulianstatic int
143793746Sjulianmy_encap(struct my_softc * sc, struct my_chain * c, struct mbuf * m_head)
143893746Sjulian{
143993746Sjulian	struct my_desc *f = NULL;
144093746Sjulian	int             total_len;
144193746Sjulian	struct mbuf    *m, *m_new = NULL;
144293746Sjulian
144393746Sjulian	MY_LOCK(sc);
144493746Sjulian	/* calculate the total tx pkt length */
144593746Sjulian	total_len = 0;
144693746Sjulian	for (m = m_head; m != NULL; m = m->m_next)
144793746Sjulian		total_len += m->m_len;
144893746Sjulian	/*
144993746Sjulian	 * Start packing the mbufs in this chain into the fragment pointers.
145093746Sjulian	 * Stop when we run out of fragments or hit the end of the mbuf
145193746Sjulian	 * chain.
145293746Sjulian	 */
145393746Sjulian	m = m_head;
145493746Sjulian	MGETHDR(m_new, M_DONTWAIT, MT_DATA);
145593746Sjulian	if (m_new == NULL) {
145693746Sjulian		printf("my%d: no memory for tx list", sc->my_unit);
145795939Sjulian		MY_UNLOCK(sc);
145893746Sjulian		return (1);
145993746Sjulian	}
146093746Sjulian	if (m_head->m_pkthdr.len > MHLEN) {
146193746Sjulian		MCLGET(m_new, M_DONTWAIT);
146293746Sjulian		if (!(m_new->m_flags & M_EXT)) {
146393746Sjulian			m_freem(m_new);
146493746Sjulian			printf("my%d: no memory for tx list", sc->my_unit);
146595939Sjulian			MY_UNLOCK(sc);
146693746Sjulian			return (1);
146793746Sjulian		}
146893746Sjulian	}
146993746Sjulian	m_copydata(m_head, 0, m_head->m_pkthdr.len, mtod(m_new, caddr_t));
147093746Sjulian	m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len;
147193746Sjulian	m_freem(m_head);
147293746Sjulian	m_head = m_new;
147393746Sjulian	f = &c->my_ptr->my_frag[0];
147493746Sjulian	f->my_status = 0;
147593746Sjulian	f->my_data = vtophys(mtod(m_new, caddr_t));
147693746Sjulian	total_len = m_new->m_len;
147793746Sjulian	f->my_ctl = MY_TXFD | MY_TXLD | MY_CRCEnable | MY_PADEnable;
147893746Sjulian	f->my_ctl |= total_len << MY_PKTShift;	/* pkt size */
147993746Sjulian	f->my_ctl |= total_len;	/* buffer size */
148094904Sjulian	/* 89/12/29 add, for mtd891 *//* [ 89? ] */
148193746Sjulian	if (sc->my_info->my_did == MTD891ID)
148293746Sjulian		f->my_ctl |= MY_ETIControl | MY_RetryTxLC;
148393746Sjulian	c->my_mbuf = m_head;
148493746Sjulian	c->my_lastdesc = 0;
148593746Sjulian	MY_TXNEXT(c) = vtophys(&c->my_nextdesc->my_ptr->my_frag[0]);
148693746Sjulian	MY_UNLOCK(sc);
148793746Sjulian	return (0);
148893746Sjulian}
148993746Sjulian
149093746Sjulian/*
149193746Sjulian * Main transmit routine. To avoid having to do mbuf copies, we put pointers
149293746Sjulian * to the mbuf data regions directly in the transmit lists. We also save a
149393746Sjulian * copy of the pointers since the transmit list fragment pointers are
149493746Sjulian * physical addresses.
149593746Sjulian */
149693746Sjulianstatic void
149793746Sjulianmy_start(struct ifnet * ifp)
149893746Sjulian{
149993746Sjulian	struct my_softc *sc;
150093746Sjulian	struct mbuf    *m_head = NULL;
150193746Sjulian	struct my_chain *cur_tx = NULL, *start_tx;
150293746Sjulian
150393746Sjulian	sc = ifp->if_softc;
150493746Sjulian	MY_LOCK(sc);
150593746Sjulian	if (sc->my_autoneg) {
150693746Sjulian		sc->my_tx_pend = 1;
150793746Sjulian		MY_UNLOCK(sc);
150893746Sjulian		return;
150993746Sjulian	}
151093746Sjulian	/*
151193746Sjulian	 * Check for an available queue slot. If there are none, punt.
151293746Sjulian	 */
151393746Sjulian	if (sc->my_cdata.my_tx_free->my_mbuf != NULL) {
151493746Sjulian		ifp->if_flags |= IFF_OACTIVE;
151593746Sjulian		MY_UNLOCK(sc);
151693746Sjulian		return;
151793746Sjulian	}
151893746Sjulian	start_tx = sc->my_cdata.my_tx_free;
151993746Sjulian	while (sc->my_cdata.my_tx_free->my_mbuf == NULL) {
152093746Sjulian		IF_DEQUEUE(&ifp->if_snd, m_head);
152193746Sjulian		if (m_head == NULL)
152293746Sjulian			break;
152393746Sjulian
152493746Sjulian		/* Pick a descriptor off the free list. */
152593746Sjulian		cur_tx = sc->my_cdata.my_tx_free;
152693746Sjulian		sc->my_cdata.my_tx_free = cur_tx->my_nextdesc;
152793746Sjulian
152893746Sjulian		/* Pack the data into the descriptor. */
152993746Sjulian		my_encap(sc, cur_tx, m_head);
153093746Sjulian
153193746Sjulian		if (cur_tx != start_tx)
153293746Sjulian			MY_TXOWN(cur_tx) = MY_OWNByNIC;
153393746Sjulian#if NBPFILTER > 0
153493746Sjulian		/*
153593746Sjulian		 * If there's a BPF listener, bounce a copy of this frame to
153693746Sjulian		 * him.
153793746Sjulian		 */
153893746Sjulian		if (ifp->if_bpf)
153993746Sjulian			bpf_mtap(ifp, cur_tx->my_mbuf);
154093746Sjulian#endif
154193746Sjulian	}
154293746Sjulian	/*
154393746Sjulian	 * If there are no packets queued, bail.
154493746Sjulian	 */
154593746Sjulian	if (cur_tx == NULL) {
154693746Sjulian		MY_UNLOCK(sc);
154793746Sjulian		return;
154893746Sjulian	}
154993746Sjulian	/*
155093746Sjulian	 * Place the request for the upload interrupt in the last descriptor
155193746Sjulian	 * in the chain. This way, if we're chaining several packets at once,
155293746Sjulian	 * we'll only get an interupt once for the whole chain rather than
155393746Sjulian	 * once for each packet.
155493746Sjulian	 */
155593746Sjulian	MY_TXCTL(cur_tx) |= MY_TXIC;
155693746Sjulian	cur_tx->my_ptr->my_frag[0].my_ctl |= MY_TXIC;
155793746Sjulian	sc->my_cdata.my_tx_tail = cur_tx;
155893746Sjulian	if (sc->my_cdata.my_tx_head == NULL)
155993746Sjulian		sc->my_cdata.my_tx_head = start_tx;
156093746Sjulian	MY_TXOWN(start_tx) = MY_OWNByNIC;
156193746Sjulian	CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF);	/* tx polling demand */
156293746Sjulian
156393746Sjulian	/*
156493746Sjulian	 * Set a timeout in case the chip goes out to lunch.
156593746Sjulian	 */
156693746Sjulian	ifp->if_timer = 5;
156793746Sjulian	MY_UNLOCK(sc);
156893746Sjulian	return;
156993746Sjulian}
157093746Sjulian
157193746Sjulianstatic void
157293746Sjulianmy_init(void *xsc)
157393746Sjulian{
157493746Sjulian	struct my_softc *sc = xsc;
157593746Sjulian	struct ifnet   *ifp = &sc->arpcom.ac_if;
157693746Sjulian	int             s;
157793746Sjulian	u_int16_t       phy_bmcr = 0;
157893746Sjulian
157993746Sjulian	MY_LOCK(sc);
158093746Sjulian	if (sc->my_autoneg) {
158193746Sjulian		MY_UNLOCK(sc);
158293746Sjulian		return;
158393746Sjulian	}
158493746Sjulian	s = splimp();
158593746Sjulian	if (sc->my_pinfo != NULL)
158693746Sjulian		phy_bmcr = my_phy_readreg(sc, PHY_BMCR);
158793746Sjulian	/*
158893746Sjulian	 * Cancel pending I/O and free all RX/TX buffers.
158993746Sjulian	 */
159093746Sjulian	my_stop(sc);
159193746Sjulian	my_reset(sc);
159293746Sjulian
159393746Sjulian	/*
159493746Sjulian	 * Set cache alignment and burst length.
159593746Sjulian	 */
159694863Sjulian#if 0				/* 89/9/1 modify,  */
159794863Sjulian	CSR_WRITE_4(sc, MY_BCR, MY_RPBLE512);
159894863Sjulian	CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF);
159994863Sjulian#endif
160093746Sjulian	CSR_WRITE_4(sc, MY_BCR, MY_PBL8);
160193746Sjulian	CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF | MY_RBLEN | MY_RPBLE512);
160293746Sjulian	/*
160393746Sjulian	 * 89/12/29 add, for mtd891,
160493746Sjulian	 */
160593746Sjulian	if (sc->my_info->my_did == MTD891ID) {
160693746Sjulian		MY_SETBIT(sc, MY_BCR, MY_PROG);
160793746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_Enhanced);
160893746Sjulian	}
160993746Sjulian	my_setcfg(sc, phy_bmcr);
161093746Sjulian	/* Init circular RX list. */
161193746Sjulian	if (my_list_rx_init(sc) == ENOBUFS) {
161293746Sjulian		printf("my%d: init failed: no memory for rx buffers\n",
161393746Sjulian		    sc->my_unit);
161493746Sjulian		my_stop(sc);
161593746Sjulian		(void)splx(s);
161693746Sjulian		MY_UNLOCK(sc);
161793746Sjulian		return;
161893746Sjulian	}
161993746Sjulian	/* Init TX descriptors. */
162093746Sjulian	my_list_tx_init(sc);
162193746Sjulian
162293746Sjulian	/* If we want promiscuous mode, set the allframes bit. */
162393746Sjulian	if (ifp->if_flags & IFF_PROMISC)
162493746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_PROM);
162593746Sjulian	else
162693746Sjulian		MY_CLRBIT(sc, MY_TCRRCR, MY_PROM);
162793746Sjulian
162893746Sjulian	/*
162993746Sjulian	 * Set capture broadcast bit to capture broadcast frames.
163093746Sjulian	 */
163193746Sjulian	if (ifp->if_flags & IFF_BROADCAST)
163293746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_AB);
163393746Sjulian	else
163493746Sjulian		MY_CLRBIT(sc, MY_TCRRCR, MY_AB);
163593746Sjulian
163693746Sjulian	/*
163793746Sjulian	 * Program the multicast filter, if necessary.
163893746Sjulian	 */
163993746Sjulian	my_setmulti(sc);
164093746Sjulian
164193746Sjulian	/*
164293746Sjulian	 * Load the address of the RX list.
164393746Sjulian	 */
164493746Sjulian	MY_CLRBIT(sc, MY_TCRRCR, MY_RE);
164593746Sjulian	CSR_WRITE_4(sc, MY_RXLBA, vtophys(&sc->my_ldata->my_rx_list[0]));
164693746Sjulian
164793746Sjulian	/*
164893746Sjulian	 * Enable interrupts.
164993746Sjulian	 */
165093746Sjulian	CSR_WRITE_4(sc, MY_IMR, MY_INTRS);
165193746Sjulian	CSR_WRITE_4(sc, MY_ISR, 0xFFFFFFFF);
165293746Sjulian
165393746Sjulian	/* Enable receiver and transmitter. */
165493746Sjulian	MY_SETBIT(sc, MY_TCRRCR, MY_RE);
165593746Sjulian	MY_CLRBIT(sc, MY_TCRRCR, MY_TE);
165693746Sjulian	CSR_WRITE_4(sc, MY_TXLBA, vtophys(&sc->my_ldata->my_tx_list[0]));
165793746Sjulian	MY_SETBIT(sc, MY_TCRRCR, MY_TE);
165893746Sjulian
165993746Sjulian	/* Restore state of BMCR */
166093746Sjulian	if (sc->my_pinfo != NULL)
166193746Sjulian		my_phy_writereg(sc, PHY_BMCR, phy_bmcr);
166293746Sjulian	ifp->if_flags |= IFF_RUNNING;
166393746Sjulian	ifp->if_flags &= ~IFF_OACTIVE;
166493746Sjulian	(void)splx(s);
166593746Sjulian	MY_UNLOCK(sc);
166693746Sjulian	return;
166793746Sjulian}
166893746Sjulian
166993746Sjulian/*
167093746Sjulian * Set media options.
167193746Sjulian */
167293746Sjulian
167393746Sjulianstatic int
167493746Sjulianmy_ifmedia_upd(struct ifnet * ifp)
167593746Sjulian{
167693746Sjulian	struct my_softc *sc;
167793746Sjulian	struct ifmedia *ifm;
167893746Sjulian
167993746Sjulian	sc = ifp->if_softc;
168093746Sjulian	MY_LOCK(sc);
168193746Sjulian	ifm = &sc->ifmedia;
168293746Sjulian	if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) {
168393746Sjulian		MY_UNLOCK(sc);
168493746Sjulian		return (EINVAL);
168593746Sjulian	}
168693746Sjulian	if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO)
168793746Sjulian		my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1);
168893746Sjulian	else
168993746Sjulian		my_setmode_mii(sc, ifm->ifm_media);
169093746Sjulian	MY_UNLOCK(sc);
169193746Sjulian	return (0);
169293746Sjulian}
169393746Sjulian
169493746Sjulian/*
169593746Sjulian * Report current media status.
169693746Sjulian */
169793746Sjulian
169893746Sjulianstatic void
169993746Sjulianmy_ifmedia_sts(struct ifnet * ifp, struct ifmediareq * ifmr)
170093746Sjulian{
170193746Sjulian	struct my_softc *sc;
170293746Sjulian	u_int16_t advert = 0, ability = 0;
170393746Sjulian
170493746Sjulian	sc = ifp->if_softc;
170593746Sjulian	MY_LOCK(sc);
170693746Sjulian	ifmr->ifm_active = IFM_ETHER;
170793746Sjulian	if (!(my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_AUTONEGENBL)) {
170894863Sjulian#if 0				/* this version did not support 1000M, */
170994863Sjulian		if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_1000)
171094863Sjulian			ifmr->ifm_active = IFM_ETHER | IFM_1000TX;
171194863Sjulian#endif
171293746Sjulian		if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_SPEEDSEL)
171393746Sjulian			ifmr->ifm_active = IFM_ETHER | IFM_100_TX;
171493746Sjulian		else
171593746Sjulian			ifmr->ifm_active = IFM_ETHER | IFM_10_T;
171693746Sjulian		if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_DUPLEX)
171793746Sjulian			ifmr->ifm_active |= IFM_FDX;
171893746Sjulian		else
171993746Sjulian			ifmr->ifm_active |= IFM_HDX;
172093746Sjulian
172193746Sjulian		MY_UNLOCK(sc);
172293746Sjulian		return;
172393746Sjulian	}
172493746Sjulian	ability = my_phy_readreg(sc, PHY_LPAR);
172593746Sjulian	advert = my_phy_readreg(sc, PHY_ANAR);
172693746Sjulian
172794863Sjulian#if 0				/* this version did not support 1000M, */
172893746Sjulian	if (sc->my_pinfo->my_vid = MarvellPHYID0) {
172993746Sjulian		ability2 = my_phy_readreg(sc, PHY_1000SR);
173093746Sjulian		if (ability2 & PHY_1000SR_1000BTXFULL) {
173193746Sjulian			advert = 0;
173293746Sjulian			ability = 0;
173395673Sphk	  		ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_FDX;
173493746Sjulian	  	} else if (ability & PHY_1000SR_1000BTXHALF) {
173593746Sjulian			advert = 0;
173693746Sjulian			ability = 0;
173795673Sphk			ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_HDX;
173893746Sjulian		}
173993746Sjulian	}
174093746Sjulian#endif
174193746Sjulian	if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4)
174293746Sjulian		ifmr->ifm_active = IFM_ETHER | IFM_100_T4;
174393746Sjulian	else if (advert & PHY_ANAR_100BTXFULL && ability & PHY_ANAR_100BTXFULL)
174493746Sjulian		ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_FDX;
174593746Sjulian	else if (advert & PHY_ANAR_100BTXHALF && ability & PHY_ANAR_100BTXHALF)
174693746Sjulian		ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_HDX;
174793746Sjulian	else if (advert & PHY_ANAR_10BTFULL && ability & PHY_ANAR_10BTFULL)
174893746Sjulian		ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_FDX;
174993746Sjulian	else if (advert & PHY_ANAR_10BTHALF && ability & PHY_ANAR_10BTHALF)
175093746Sjulian		ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_HDX;
175193746Sjulian	MY_UNLOCK(sc);
175293746Sjulian	return;
175393746Sjulian}
175493746Sjulian
175593746Sjulianstatic int
175693746Sjulianmy_ioctl(struct ifnet * ifp, u_long command, caddr_t data)
175793746Sjulian{
175893746Sjulian	struct my_softc *sc = ifp->if_softc;
175993746Sjulian	struct ifreq   *ifr = (struct ifreq *) data;
176093746Sjulian	int             s, error = 0;
176193746Sjulian
176293746Sjulian	s = splimp();
176393746Sjulian	MY_LOCK(sc);
176493746Sjulian	switch (command) {
176593746Sjulian	case SIOCSIFADDR:
176693746Sjulian	case SIOCGIFADDR:
176793746Sjulian	case SIOCSIFMTU:
176893746Sjulian		error = ether_ioctl(ifp, command, data);
176993746Sjulian		break;
177093746Sjulian	case SIOCSIFFLAGS:
177193746Sjulian		if (ifp->if_flags & IFF_UP)
177293746Sjulian			my_init(sc);
177393746Sjulian		else if (ifp->if_flags & IFF_RUNNING)
177493746Sjulian			my_stop(sc);
177593746Sjulian		error = 0;
177693746Sjulian		break;
177793746Sjulian	case SIOCADDMULTI:
177893746Sjulian	case SIOCDELMULTI:
177993746Sjulian		my_setmulti(sc);
178093746Sjulian		error = 0;
178193746Sjulian		break;
178293746Sjulian	case SIOCGIFMEDIA:
178393746Sjulian	case SIOCSIFMEDIA:
178493746Sjulian		error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command);
178593746Sjulian		break;
178693746Sjulian	default:
178793746Sjulian		error = EINVAL;
178893746Sjulian		break;
178993746Sjulian	}
179093746Sjulian	MY_UNLOCK(sc);
179193746Sjulian	(void)splx(s);
179293746Sjulian	return (error);
179393746Sjulian}
179493746Sjulian
179593746Sjulianstatic void
179693746Sjulianmy_watchdog(struct ifnet * ifp)
179793746Sjulian{
179893746Sjulian	struct my_softc *sc;
179993746Sjulian
180093746Sjulian	sc = ifp->if_softc;
180193746Sjulian	MY_LOCK(sc);
180293746Sjulian	if (sc->my_autoneg) {
180393746Sjulian		my_autoneg_mii(sc, MY_FLAG_DELAYTIMEO, 1);
180493746Sjulian		MY_UNLOCK(sc);
180593746Sjulian		return;
180693746Sjulian	}
180793746Sjulian	ifp->if_oerrors++;
180893746Sjulian	printf("my%d: watchdog timeout\n", sc->my_unit);
180993746Sjulian	if (!(my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT))
181093746Sjulian		printf("my%d: no carrier - transceiver cable problem?\n",
181193746Sjulian		    sc->my_unit);
181293746Sjulian	my_stop(sc);
181393746Sjulian	my_reset(sc);
181493746Sjulian	my_init(sc);
181593746Sjulian	if (ifp->if_snd.ifq_head != NULL)
181693746Sjulian		my_start(ifp);
181793746Sjulian	MY_LOCK(sc);
181893746Sjulian	return;
181993746Sjulian}
182093746Sjulian
182193746Sjulian
182293746Sjulian/*
182393746Sjulian * Stop the adapter and free any mbufs allocated to the RX and TX lists.
182493746Sjulian */
182593746Sjulianstatic void
182693746Sjulianmy_stop(struct my_softc * sc)
182793746Sjulian{
182893746Sjulian	register int    i;
182993746Sjulian	struct ifnet   *ifp;
183093746Sjulian
183193746Sjulian	MY_LOCK(sc);
183293746Sjulian	ifp = &sc->arpcom.ac_if;
183393746Sjulian	ifp->if_timer = 0;
183493746Sjulian
183593746Sjulian	MY_CLRBIT(sc, MY_TCRRCR, (MY_RE | MY_TE));
183693746Sjulian	CSR_WRITE_4(sc, MY_IMR, 0x00000000);
183793746Sjulian	CSR_WRITE_4(sc, MY_TXLBA, 0x00000000);
183893746Sjulian	CSR_WRITE_4(sc, MY_RXLBA, 0x00000000);
183993746Sjulian
184093746Sjulian	/*
184193746Sjulian	 * Free data in the RX lists.
184293746Sjulian	 */
184393746Sjulian	for (i = 0; i < MY_RX_LIST_CNT; i++) {
184493746Sjulian		if (sc->my_cdata.my_rx_chain[i].my_mbuf != NULL) {
184593746Sjulian			m_freem(sc->my_cdata.my_rx_chain[i].my_mbuf);
184693746Sjulian			sc->my_cdata.my_rx_chain[i].my_mbuf = NULL;
184793746Sjulian		}
184893746Sjulian	}
184993746Sjulian	bzero((char *)&sc->my_ldata->my_rx_list,
185093746Sjulian	    sizeof(sc->my_ldata->my_rx_list));
185193746Sjulian	/*
185293746Sjulian	 * Free the TX list buffers.
185393746Sjulian	 */
185493746Sjulian	for (i = 0; i < MY_TX_LIST_CNT; i++) {
185593746Sjulian		if (sc->my_cdata.my_tx_chain[i].my_mbuf != NULL) {
185693746Sjulian			m_freem(sc->my_cdata.my_tx_chain[i].my_mbuf);
185793746Sjulian			sc->my_cdata.my_tx_chain[i].my_mbuf = NULL;
185893746Sjulian		}
185993746Sjulian	}
186093746Sjulian	bzero((char *)&sc->my_ldata->my_tx_list,
186193746Sjulian	    sizeof(sc->my_ldata->my_tx_list));
186293746Sjulian	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
186393746Sjulian	MY_UNLOCK(sc);
186493746Sjulian	return;
186593746Sjulian}
186693746Sjulian
186793746Sjulian/*
186893746Sjulian * Stop all chip I/O so that the kernel's probe routines don't get confused
186993746Sjulian * by errant DMAs when rebooting.
187093746Sjulian */
187193746Sjulianstatic void
187293746Sjulianmy_shutdown(device_t dev)
187393746Sjulian{
187493746Sjulian	struct my_softc *sc;
187593746Sjulian
187693746Sjulian	sc = device_get_softc(dev);
187793746Sjulian	my_stop(sc);
187893746Sjulian	return;
187993746Sjulian}
188095939Sjulian
188195939Sjulian
1882