if_my.c revision 119285
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 * Myson fast ethernet PCI NIC driver
2993746Sjulian */
30113038Sobrien
31113038Sobrien#include <sys/cdefs.h>
32113038Sobrien__FBSDID("$FreeBSD: head/sys/dev/my/if_my.c 119285 2003-08-22 06:42:59Z imp $");
33113038Sobrien
3493746Sjulian#include <sys/param.h>
3593746Sjulian#include <sys/systm.h>
3693746Sjulian#include <sys/sockio.h>
3793746Sjulian#include <sys/mbuf.h>
3893746Sjulian#include <sys/malloc.h>
3993746Sjulian#include <sys/kernel.h>
4093746Sjulian#include <sys/socket.h>
4193746Sjulian#include <sys/queue.h>
4293746Sjulian#include <sys/types.h>
4393746Sjulian#include <sys/bus.h>
4493746Sjulian#include <sys/module.h>
4595807Sjulian#include <sys/lock.h>
4695807Sjulian#include <sys/mutex.h>
4793746Sjulian
4893746Sjulian#define NBPFILTER	1
4993746Sjulian
5093746Sjulian#include <net/if.h>
5193746Sjulian#include <net/if_arp.h>
5293746Sjulian#include <net/ethernet.h>
5393746Sjulian#include <net/if_media.h>
5493746Sjulian#include <net/if_dl.h>
5593746Sjulian#include <net/bpf.h>
5693746Sjulian
5793746Sjulian#include <vm/vm.h>		/* for vtophys */
5893746Sjulian#include <vm/pmap.h>		/* for vtophys */
5993746Sjulian#include <machine/clock.h>	/* for DELAY */
6093746Sjulian#include <machine/bus_memio.h>
6193746Sjulian#include <machine/bus_pio.h>
6293746Sjulian#include <machine/bus.h>
6393746Sjulian#include <machine/resource.h>
6493746Sjulian#include <sys/bus.h>
6593746Sjulian#include <sys/rman.h>
6693746Sjulian
67119285Simp#include <dev/pci/pcireg.h>
68119285Simp#include <dev/pci/pcivar.h>
6993746Sjulian
7093746Sjulian#include <dev/mii/mii.h>
7193746Sjulian#include <dev/mii/miivar.h>
7293746Sjulian
7393746Sjulian#include "miibus_if.h"
7493746Sjulian
7593746Sjulian/*
7693746Sjulian * #define MY_USEIOSPACE
7793746Sjulian */
7893746Sjulian
7993746Sjulianstatic int      MY_USEIOSPACE = 1;
8093746Sjulian
8193746Sjulian#if (MY_USEIOSPACE)
8294904Sjulian#define MY_RES                  SYS_RES_IOPORT
8394904Sjulian#define MY_RID                  MY_PCI_LOIO
8493746Sjulian#else
8594904Sjulian#define MY_RES                  SYS_RES_MEMORY
8694904Sjulian#define MY_RID                  MY_PCI_LOMEM
8793746Sjulian#endif
8893746Sjulian
8993746Sjulian
9093746Sjulian#include <dev/my/if_myreg.h>
9193746Sjulian
9293746Sjulian#ifndef lint
9393746Sjulianstatic          const char rcsid[] =
94119285Simp"$Id: if_my.c,v 1.16 2003/04/15 06:37:25 mdodd Exp $";
9593746Sjulian#endif
9693746Sjulian
9793746Sjulian/*
9893746Sjulian * Various supported device vendors/types and their names.
9993746Sjulian */
10093746Sjulianstruct my_type *my_info_tmp;
10193746Sjulianstatic struct my_type my_devs[] = {
10293746Sjulian	{MYSONVENDORID, MTD800ID, "Myson MTD80X Based Fast Ethernet Card"},
10393746Sjulian	{MYSONVENDORID, MTD803ID, "Myson MTD80X Based Fast Ethernet Card"},
10493746Sjulian	{MYSONVENDORID, MTD891ID, "Myson MTD89X Based Giga Ethernet Card"},
10593746Sjulian	{0, 0, NULL}
10693746Sjulian};
10793746Sjulian
10893746Sjulian/*
10993746Sjulian * Various supported PHY vendors/types and their names. Note that this driver
11093746Sjulian * will work with pretty much any MII-compliant PHY, so failure to positively
11193746Sjulian * identify the chip is not a fatal error.
11293746Sjulian */
11393746Sjulianstatic struct my_type my_phys[] = {
11493746Sjulian	{MysonPHYID0, MysonPHYID0, "<MYSON MTD981>"},
11593746Sjulian	{SeeqPHYID0, SeeqPHYID0, "<SEEQ 80225>"},
11693746Sjulian	{AhdocPHYID0, AhdocPHYID0, "<AHDOC 101>"},
11793746Sjulian	{MarvellPHYID0, MarvellPHYID0, "<MARVELL 88E1000>"},
11893746Sjulian	{LevelOnePHYID0, LevelOnePHYID0, "<LevelOne LXT1000>"},
11993746Sjulian	{0, 0, "<MII-compliant physical interface>"}
12093746Sjulian};
12193746Sjulian
12293746Sjulianstatic int      my_probe(device_t);
12393746Sjulianstatic int      my_attach(device_t);
12493746Sjulianstatic int      my_detach(device_t);
12593746Sjulianstatic int      my_newbuf(struct my_softc *, struct my_chain_onefrag *);
12693746Sjulianstatic int      my_encap(struct my_softc *, struct my_chain *, struct mbuf *);
12793746Sjulianstatic void     my_rxeof(struct my_softc *);
12893746Sjulianstatic void     my_txeof(struct my_softc *);
12993746Sjulianstatic void     my_txeoc(struct my_softc *);
13093746Sjulianstatic void     my_intr(void *);
13193746Sjulianstatic void     my_start(struct ifnet *);
13293746Sjulianstatic int      my_ioctl(struct ifnet *, u_long, caddr_t);
13393746Sjulianstatic void     my_init(void *);
13493746Sjulianstatic void     my_stop(struct my_softc *);
13593746Sjulianstatic void     my_watchdog(struct ifnet *);
13693746Sjulianstatic void     my_shutdown(device_t);
13793746Sjulianstatic int      my_ifmedia_upd(struct ifnet *);
13893746Sjulianstatic void     my_ifmedia_sts(struct ifnet *, struct ifmediareq *);
13993746Sjulianstatic u_int16_t my_phy_readreg(struct my_softc *, int);
14093746Sjulianstatic void     my_phy_writereg(struct my_softc *, int, int);
14193746Sjulianstatic void     my_autoneg_xmit(struct my_softc *);
14293746Sjulianstatic void     my_autoneg_mii(struct my_softc *, int, int);
14393746Sjulianstatic void     my_setmode_mii(struct my_softc *, int);
14493746Sjulianstatic void     my_getmode_mii(struct my_softc *);
14593746Sjulianstatic void     my_setcfg(struct my_softc *, int);
14693746Sjulianstatic u_int8_t my_calchash(caddr_t);
14793746Sjulianstatic void     my_setmulti(struct my_softc *);
14893746Sjulianstatic void     my_reset(struct my_softc *);
14993746Sjulianstatic int      my_list_rx_init(struct my_softc *);
15093746Sjulianstatic int      my_list_tx_init(struct my_softc *);
15193746Sjulianstatic long     my_send_cmd_to_phy(struct my_softc *, int, int);
15293746Sjulian
153106696Salfred#define MY_SETBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x))
154106696Salfred#define MY_CLRBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x))
15593746Sjulian
15693746Sjulianstatic device_method_t my_methods[] = {
15793746Sjulian	/* Device interface */
15893746Sjulian	DEVMETHOD(device_probe, my_probe),
15993746Sjulian	DEVMETHOD(device_attach, my_attach),
16093746Sjulian	DEVMETHOD(device_detach, my_detach),
16193746Sjulian	DEVMETHOD(device_shutdown, my_shutdown),
16293746Sjulian
16393746Sjulian	{0, 0}
16493746Sjulian};
16593746Sjulian
16693746Sjulianstatic driver_t my_driver = {
16793746Sjulian	"my",
16893746Sjulian	my_methods,
16993746Sjulian	sizeof(struct my_softc)
17093746Sjulian};
17193746Sjulian
17293746Sjulianstatic devclass_t my_devclass;
17393746Sjulian
174113506SmdoddDRIVER_MODULE(my, pci, my_driver, my_devclass, 0, 0);
175113506SmdoddMODULE_DEPEND(my, pci, 1, 1, 1);
176113506SmdoddMODULE_DEPEND(my, ether, 1, 1, 1);
17793746Sjulian
17893746Sjulianstatic long
17993746Sjulianmy_send_cmd_to_phy(struct my_softc * sc, int opcode, int regad)
18093746Sjulian{
18193746Sjulian	long            miir;
18293746Sjulian	int             i;
18393746Sjulian	int             mask, data;
18493746Sjulian
18593746Sjulian	MY_LOCK(sc);
18693746Sjulian
18793746Sjulian	/* enable MII output */
18893746Sjulian	miir = CSR_READ_4(sc, MY_MANAGEMENT);
18993746Sjulian	miir &= 0xfffffff0;
19093746Sjulian
19193746Sjulian	miir |= MY_MASK_MIIR_MII_WRITE + MY_MASK_MIIR_MII_MDO;
19293746Sjulian
19393746Sjulian	/* send 32 1's preamble */
19493746Sjulian	for (i = 0; i < 32; i++) {
19593746Sjulian		/* low MDC; MDO is already high (miir) */
19693746Sjulian		miir &= ~MY_MASK_MIIR_MII_MDC;
19793746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
19893746Sjulian
19993746Sjulian		/* high MDC */
20093746Sjulian		miir |= MY_MASK_MIIR_MII_MDC;
20193746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
20293746Sjulian	}
20393746Sjulian
20493746Sjulian	/* calculate ST+OP+PHYAD+REGAD+TA */
20593746Sjulian	data = opcode | (sc->my_phy_addr << 7) | (regad << 2);
20693746Sjulian
20793746Sjulian	/* sent out */
20893746Sjulian	mask = 0x8000;
20993746Sjulian	while (mask) {
21093746Sjulian		/* low MDC, prepare MDO */
21193746Sjulian		miir &= ~(MY_MASK_MIIR_MII_MDC + MY_MASK_MIIR_MII_MDO);
21293746Sjulian		if (mask & data)
21393746Sjulian			miir |= MY_MASK_MIIR_MII_MDO;
21493746Sjulian
21593746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
21693746Sjulian		/* high MDC */
21793746Sjulian		miir |= MY_MASK_MIIR_MII_MDC;
21893746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
21993746Sjulian		DELAY(30);
22093746Sjulian
22193746Sjulian		/* next */
22293746Sjulian		mask >>= 1;
22393746Sjulian		if (mask == 0x2 && opcode == MY_OP_READ)
22493746Sjulian			miir &= ~MY_MASK_MIIR_MII_WRITE;
22593746Sjulian	}
22693746Sjulian
22793746Sjulian	MY_UNLOCK(sc);
22893746Sjulian	return miir;
22993746Sjulian}
23093746Sjulian
23193746Sjulian
23293746Sjulianstatic          u_int16_t
23393746Sjulianmy_phy_readreg(struct my_softc * sc, int reg)
23493746Sjulian{
23593746Sjulian	long            miir;
23693746Sjulian	int             mask, data;
23793746Sjulian
23893746Sjulian	MY_LOCK(sc);
23993746Sjulian
24093746Sjulian	if (sc->my_info->my_did == MTD803ID)
24193746Sjulian		data = CSR_READ_2(sc, MY_PHYBASE + reg * 2);
24293746Sjulian	else {
24393746Sjulian		miir = my_send_cmd_to_phy(sc, MY_OP_READ, reg);
24493746Sjulian
24593746Sjulian		/* read data */
24693746Sjulian		mask = 0x8000;
24793746Sjulian		data = 0;
24893746Sjulian		while (mask) {
24993746Sjulian			/* low MDC */
25093746Sjulian			miir &= ~MY_MASK_MIIR_MII_MDC;
25193746Sjulian			CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
25293746Sjulian
25393746Sjulian			/* read MDI */
25493746Sjulian			miir = CSR_READ_4(sc, MY_MANAGEMENT);
25593746Sjulian			if (miir & MY_MASK_MIIR_MII_MDI)
25693746Sjulian				data |= mask;
25793746Sjulian
25893746Sjulian			/* high MDC, and wait */
25993746Sjulian			miir |= MY_MASK_MIIR_MII_MDC;
26093746Sjulian			CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
26193746Sjulian			DELAY(30);
26293746Sjulian
26393746Sjulian			/* next */
26493746Sjulian			mask >>= 1;
26593746Sjulian		}
26693746Sjulian
26793746Sjulian		/* low MDC */
26893746Sjulian		miir &= ~MY_MASK_MIIR_MII_MDC;
26993746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
27093746Sjulian	}
27193746Sjulian
27293746Sjulian	MY_UNLOCK(sc);
27393746Sjulian	return (u_int16_t) data;
27493746Sjulian}
27593746Sjulian
27693746Sjulian
27793746Sjulianstatic void
27893746Sjulianmy_phy_writereg(struct my_softc * sc, int reg, int data)
27993746Sjulian{
28093746Sjulian	long            miir;
28193746Sjulian	int             mask;
28293746Sjulian
28393746Sjulian	MY_LOCK(sc);
28493746Sjulian
28593746Sjulian	if (sc->my_info->my_did == MTD803ID)
28693746Sjulian		CSR_WRITE_2(sc, MY_PHYBASE + reg * 2, data);
28793746Sjulian	else {
28893746Sjulian		miir = my_send_cmd_to_phy(sc, MY_OP_WRITE, reg);
28993746Sjulian
29093746Sjulian		/* write data */
29193746Sjulian		mask = 0x8000;
29293746Sjulian		while (mask) {
29393746Sjulian			/* low MDC, prepare MDO */
29493746Sjulian			miir &= ~(MY_MASK_MIIR_MII_MDC + MY_MASK_MIIR_MII_MDO);
29593746Sjulian			if (mask & data)
29693746Sjulian				miir |= MY_MASK_MIIR_MII_MDO;
29793746Sjulian			CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
29893746Sjulian			DELAY(1);
29993746Sjulian
30093746Sjulian			/* high MDC */
30193746Sjulian			miir |= MY_MASK_MIIR_MII_MDC;
30293746Sjulian			CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
30393746Sjulian			DELAY(1);
30493746Sjulian
30593746Sjulian			/* next */
30693746Sjulian			mask >>= 1;
30793746Sjulian		}
30893746Sjulian
30993746Sjulian		/* low MDC */
31093746Sjulian		miir &= ~MY_MASK_MIIR_MII_MDC;
31193746Sjulian		CSR_WRITE_4(sc, MY_MANAGEMENT, miir);
31293746Sjulian	}
31393746Sjulian	MY_UNLOCK(sc);
31493746Sjulian	return;
31593746Sjulian}
31693746Sjulian
31793746Sjulianstatic          u_int8_t
31893746Sjulianmy_calchash(caddr_t addr)
31993746Sjulian{
32093746Sjulian	u_int32_t       crc, carry;
32193746Sjulian	int             i, j;
32293746Sjulian	u_int8_t        c;
32393746Sjulian
32493746Sjulian	/* Compute CRC for the address value. */
32593746Sjulian	crc = 0xFFFFFFFF;	/* initial value */
32693746Sjulian
32793746Sjulian	for (i = 0; i < 6; i++) {
32893746Sjulian		c = *(addr + i);
32993746Sjulian		for (j = 0; j < 8; j++) {
33093746Sjulian			carry = ((crc & 0x80000000) ? 1 : 0) ^ (c & 0x01);
33193746Sjulian			crc <<= 1;
33293746Sjulian			c >>= 1;
33393746Sjulian			if (carry)
33493746Sjulian				crc = (crc ^ 0x04c11db6) | carry;
33593746Sjulian		}
33693746Sjulian	}
33793746Sjulian
33893746Sjulian	/*
33993746Sjulian	 * return the filter bit position Note: I arrived at the following
34093746Sjulian	 * nonsense through experimentation. It's not the usual way to
34193746Sjulian	 * generate the bit position but it's the only thing I could come up
34293746Sjulian	 * with that works.
34393746Sjulian	 */
34493746Sjulian	return (~(crc >> 26) & 0x0000003F);
34593746Sjulian}
34693746Sjulian
34793746Sjulian
34893746Sjulian/*
34993746Sjulian * Program the 64-bit multicast hash filter.
35093746Sjulian */
35193746Sjulianstatic void
35293746Sjulianmy_setmulti(struct my_softc * sc)
35393746Sjulian{
35493746Sjulian	struct ifnet   *ifp;
35593746Sjulian	int             h = 0;
35693746Sjulian	u_int32_t       hashes[2] = {0, 0};
35793746Sjulian	struct ifmultiaddr *ifma;
35893746Sjulian	u_int32_t       rxfilt;
35993746Sjulian	int             mcnt = 0;
36093746Sjulian
36193746Sjulian	MY_LOCK(sc);
36293746Sjulian
36393746Sjulian	ifp = &sc->arpcom.ac_if;
36493746Sjulian
36593746Sjulian	rxfilt = CSR_READ_4(sc, MY_TCRRCR);
36693746Sjulian
36793746Sjulian	if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
36893746Sjulian		rxfilt |= MY_AM;
36993746Sjulian		CSR_WRITE_4(sc, MY_TCRRCR, rxfilt);
37093746Sjulian		CSR_WRITE_4(sc, MY_MAR0, 0xFFFFFFFF);
37193746Sjulian		CSR_WRITE_4(sc, MY_MAR1, 0xFFFFFFFF);
37293746Sjulian
37393746Sjulian		MY_UNLOCK(sc);
37493746Sjulian
37593746Sjulian		return;
37693746Sjulian	}
37793746Sjulian	/* first, zot all the existing hash bits */
37893746Sjulian	CSR_WRITE_4(sc, MY_MAR0, 0);
37993746Sjulian	CSR_WRITE_4(sc, MY_MAR1, 0);
38093746Sjulian
38193746Sjulian	/* now program new ones */
38293746Sjulian	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
38393746Sjulian		if (ifma->ifma_addr->sa_family != AF_LINK)
38493746Sjulian			continue;
38593746Sjulian		h = my_calchash(LLADDR((struct sockaddr_dl *) ifma->ifma_addr));
38693746Sjulian		if (h < 32)
38793746Sjulian			hashes[0] |= (1 << h);
38893746Sjulian		else
38993746Sjulian			hashes[1] |= (1 << (h - 32));
39093746Sjulian		mcnt++;
39193746Sjulian	}
39293746Sjulian
39393746Sjulian	if (mcnt)
39493746Sjulian		rxfilt |= MY_AM;
39593746Sjulian	else
39693746Sjulian		rxfilt &= ~MY_AM;
39793746Sjulian	CSR_WRITE_4(sc, MY_MAR0, hashes[0]);
39893746Sjulian	CSR_WRITE_4(sc, MY_MAR1, hashes[1]);
39993746Sjulian	CSR_WRITE_4(sc, MY_TCRRCR, rxfilt);
40093746Sjulian	MY_UNLOCK(sc);
40193746Sjulian	return;
40293746Sjulian}
40393746Sjulian
40493746Sjulian/*
40593746Sjulian * Initiate an autonegotiation session.
40693746Sjulian */
40793746Sjulianstatic void
40893746Sjulianmy_autoneg_xmit(struct my_softc * sc)
40993746Sjulian{
41093746Sjulian	u_int16_t       phy_sts = 0;
41193746Sjulian
41293746Sjulian	MY_LOCK(sc);
41393746Sjulian
41493746Sjulian	my_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET);
41593746Sjulian	DELAY(500);
41693746Sjulian	while (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_RESET);
41793746Sjulian
41893746Sjulian	phy_sts = my_phy_readreg(sc, PHY_BMCR);
41993746Sjulian	phy_sts |= PHY_BMCR_AUTONEGENBL | PHY_BMCR_AUTONEGRSTR;
42093746Sjulian	my_phy_writereg(sc, PHY_BMCR, phy_sts);
42193746Sjulian
42293746Sjulian	MY_UNLOCK(sc);
42393746Sjulian	return;
42493746Sjulian}
42593746Sjulian
42693746Sjulian
42793746Sjulian/*
42893746Sjulian * Invoke autonegotiation on a PHY.
42993746Sjulian */
43093746Sjulianstatic void
43193746Sjulianmy_autoneg_mii(struct my_softc * sc, int flag, int verbose)
43293746Sjulian{
43393746Sjulian	u_int16_t       phy_sts = 0, media, advert, ability;
43493746Sjulian	u_int16_t       ability2 = 0;
43593746Sjulian	struct ifnet   *ifp;
43693746Sjulian	struct ifmedia *ifm;
43793746Sjulian
43893746Sjulian	MY_LOCK(sc);
43993746Sjulian
44093746Sjulian	ifm = &sc->ifmedia;
44193746Sjulian	ifp = &sc->arpcom.ac_if;
44293746Sjulian
44393746Sjulian	ifm->ifm_media = IFM_ETHER | IFM_AUTO;
44493746Sjulian
44593746Sjulian#ifndef FORCE_AUTONEG_TFOUR
44693746Sjulian	/*
44793746Sjulian	 * First, see if autoneg is supported. If not, there's no point in
44893746Sjulian	 * continuing.
44993746Sjulian	 */
45093746Sjulian	phy_sts = my_phy_readreg(sc, PHY_BMSR);
45193746Sjulian	if (!(phy_sts & PHY_BMSR_CANAUTONEG)) {
45293746Sjulian		if (verbose)
45393746Sjulian			printf("my%d: autonegotiation not supported\n",
45493746Sjulian			    sc->my_unit);
45593746Sjulian		ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX;
45693746Sjulian		MY_UNLOCK(sc);
45793746Sjulian		return;
45893746Sjulian	}
45993746Sjulian#endif
46093746Sjulian	switch (flag) {
46193746Sjulian	case MY_FLAG_FORCEDELAY:
46293746Sjulian		/*
46393746Sjulian		 * XXX Never use this option anywhere but in the probe
46493746Sjulian		 * routine: making the kernel stop dead in its tracks for
46593746Sjulian		 * three whole seconds after we've gone multi-user is really
46693746Sjulian		 * bad manners.
46793746Sjulian		 */
46893746Sjulian		my_autoneg_xmit(sc);
46993746Sjulian		DELAY(5000000);
47093746Sjulian		break;
47193746Sjulian	case MY_FLAG_SCHEDDELAY:
47293746Sjulian		/*
47393746Sjulian		 * Wait for the transmitter to go idle before starting an
47493746Sjulian		 * autoneg session, otherwise my_start() may clobber our
47593746Sjulian		 * timeout, and we don't want to allow transmission during an
47693746Sjulian		 * autoneg session since that can screw it up.
47793746Sjulian		 */
47893746Sjulian		if (sc->my_cdata.my_tx_head != NULL) {
47993746Sjulian			sc->my_want_auto = 1;
48093746Sjulian			MY_UNLOCK(sc);
48193746Sjulian			return;
48293746Sjulian		}
48393746Sjulian		my_autoneg_xmit(sc);
48493746Sjulian		ifp->if_timer = 5;
48593746Sjulian		sc->my_autoneg = 1;
48693746Sjulian		sc->my_want_auto = 0;
48793746Sjulian		MY_UNLOCK(sc);
48893746Sjulian		return;
48993746Sjulian	case MY_FLAG_DELAYTIMEO:
49093746Sjulian		ifp->if_timer = 0;
49193746Sjulian		sc->my_autoneg = 0;
49293746Sjulian		break;
49393746Sjulian	default:
49493746Sjulian		printf("my%d: invalid autoneg flag: %d\n", sc->my_unit, flag);
49593746Sjulian		MY_UNLOCK(sc);
49693746Sjulian		return;
49793746Sjulian	}
49893746Sjulian
49993746Sjulian	if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_AUTONEGCOMP) {
50093746Sjulian		if (verbose)
50193746Sjulian			printf("my%d: autoneg complete, ", sc->my_unit);
50293746Sjulian		phy_sts = my_phy_readreg(sc, PHY_BMSR);
50393746Sjulian	} else {
50493746Sjulian		if (verbose)
50593746Sjulian			printf("my%d: autoneg not complete, ", sc->my_unit);
50693746Sjulian	}
50793746Sjulian
50893746Sjulian	media = my_phy_readreg(sc, PHY_BMCR);
50993746Sjulian
51093746Sjulian	/* Link is good. Report modes and set duplex mode. */
51193746Sjulian	if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT) {
51293746Sjulian		if (verbose)
51393746Sjulian			printf("my%d: link status good. ", sc->my_unit);
51493746Sjulian		advert = my_phy_readreg(sc, PHY_ANAR);
51593746Sjulian		ability = my_phy_readreg(sc, PHY_LPAR);
51693746Sjulian		if ((sc->my_pinfo->my_vid == MarvellPHYID0) ||
51793746Sjulian		    (sc->my_pinfo->my_vid == LevelOnePHYID0)) {
51893746Sjulian			ability2 = my_phy_readreg(sc, PHY_1000SR);
51993746Sjulian			if (ability2 & PHY_1000SR_1000BTXFULL) {
52093746Sjulian				advert = 0;
52193746Sjulian				ability = 0;
52293746Sjulian				/*
52393746Sjulian				 * this version did not support 1000M,
52493746Sjulian				 * ifm->ifm_media =
52595673Sphk				 * IFM_ETHER|IFM_1000_T|IFM_FDX;
52693746Sjulian				 */
52793746Sjulian				ifm->ifm_media =
52893746Sjulian				    IFM_ETHER | IFM_100_TX | IFM_FDX;
52993746Sjulian				media &= ~PHY_BMCR_SPEEDSEL;
53093746Sjulian				media |= PHY_BMCR_1000;
53193746Sjulian				media |= PHY_BMCR_DUPLEX;
53293746Sjulian				printf("(full-duplex, 1000Mbps)\n");
53393746Sjulian			} else if (ability2 & PHY_1000SR_1000BTXHALF) {
53493746Sjulian				advert = 0;
53593746Sjulian				ability = 0;
53693746Sjulian				/*
53793746Sjulian				 * this version did not support 1000M,
53895673Sphk				 * ifm->ifm_media = IFM_ETHER|IFM_1000_T;
53993746Sjulian				 */
54093746Sjulian				ifm->ifm_media = IFM_ETHER | IFM_100_TX;
54193746Sjulian				media &= ~PHY_BMCR_SPEEDSEL;
54293746Sjulian				media &= ~PHY_BMCR_DUPLEX;
54393746Sjulian				media |= PHY_BMCR_1000;
54493746Sjulian				printf("(half-duplex, 1000Mbps)\n");
54593746Sjulian			}
54693746Sjulian		}
54793746Sjulian		if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) {
54893746Sjulian			ifm->ifm_media = IFM_ETHER | IFM_100_T4;
54993746Sjulian			media |= PHY_BMCR_SPEEDSEL;
55093746Sjulian			media &= ~PHY_BMCR_DUPLEX;
55193746Sjulian			printf("(100baseT4)\n");
55293746Sjulian		} else if (advert & PHY_ANAR_100BTXFULL &&
55393746Sjulian			   ability & PHY_ANAR_100BTXFULL) {
55493746Sjulian			ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX;
55593746Sjulian			media |= PHY_BMCR_SPEEDSEL;
55693746Sjulian			media |= PHY_BMCR_DUPLEX;
55793746Sjulian			printf("(full-duplex, 100Mbps)\n");
55893746Sjulian		} else if (advert & PHY_ANAR_100BTXHALF &&
55993746Sjulian			   ability & PHY_ANAR_100BTXHALF) {
56093746Sjulian			ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX;
56193746Sjulian			media |= PHY_BMCR_SPEEDSEL;
56293746Sjulian			media &= ~PHY_BMCR_DUPLEX;
56393746Sjulian			printf("(half-duplex, 100Mbps)\n");
56493746Sjulian		} else if (advert & PHY_ANAR_10BTFULL &&
56593746Sjulian			   ability & PHY_ANAR_10BTFULL) {
56693746Sjulian			ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX;
56793746Sjulian			media &= ~PHY_BMCR_SPEEDSEL;
56893746Sjulian			media |= PHY_BMCR_DUPLEX;
56993746Sjulian			printf("(full-duplex, 10Mbps)\n");
57093746Sjulian		} else if (advert) {
57193746Sjulian			ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX;
57293746Sjulian			media &= ~PHY_BMCR_SPEEDSEL;
57393746Sjulian			media &= ~PHY_BMCR_DUPLEX;
57493746Sjulian			printf("(half-duplex, 10Mbps)\n");
57593746Sjulian		}
57693746Sjulian		media &= ~PHY_BMCR_AUTONEGENBL;
57793746Sjulian
57893746Sjulian		/* Set ASIC's duplex mode to match the PHY. */
57993746Sjulian		my_phy_writereg(sc, PHY_BMCR, media);
58093746Sjulian		my_setcfg(sc, media);
58193746Sjulian	} else {
58293746Sjulian		if (verbose)
58393746Sjulian			printf("my%d: no carrier\n", sc->my_unit);
58493746Sjulian	}
58593746Sjulian
58693746Sjulian	my_init(sc);
58793746Sjulian	if (sc->my_tx_pend) {
58893746Sjulian		sc->my_autoneg = 0;
58993746Sjulian		sc->my_tx_pend = 0;
59093746Sjulian		my_start(ifp);
59193746Sjulian	}
59293746Sjulian	MY_UNLOCK(sc);
59393746Sjulian	return;
59493746Sjulian}
59593746Sjulian
59693746Sjulian/*
59793746Sjulian * To get PHY ability.
59893746Sjulian */
59993746Sjulianstatic void
60093746Sjulianmy_getmode_mii(struct my_softc * sc)
60193746Sjulian{
60293746Sjulian	u_int16_t       bmsr;
60393746Sjulian	struct ifnet   *ifp;
60493746Sjulian
60593746Sjulian	MY_LOCK(sc);
60693746Sjulian	ifp = &sc->arpcom.ac_if;
60793746Sjulian	bmsr = my_phy_readreg(sc, PHY_BMSR);
60893746Sjulian	if (bootverbose)
60993746Sjulian		printf("my%d: PHY status word: %x\n", sc->my_unit, bmsr);
61093746Sjulian
61193746Sjulian	/* fallback */
61293746Sjulian	sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX;
61393746Sjulian
61493746Sjulian	if (bmsr & PHY_BMSR_10BTHALF) {
61593746Sjulian		if (bootverbose)
61693746Sjulian			printf("my%d: 10Mbps half-duplex mode supported\n",
61793746Sjulian			       sc->my_unit);
61893746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_HDX,
61993746Sjulian		    0, NULL);
62093746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T, 0, NULL);
62193746Sjulian	}
62293746Sjulian	if (bmsr & PHY_BMSR_10BTFULL) {
62393746Sjulian		if (bootverbose)
62493746Sjulian			printf("my%d: 10Mbps full-duplex mode supported\n",
62593746Sjulian			    sc->my_unit);
62693746Sjulian
62793746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_FDX,
62893746Sjulian		    0, NULL);
62993746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX;
63093746Sjulian	}
63193746Sjulian	if (bmsr & PHY_BMSR_100BTXHALF) {
63293746Sjulian		if (bootverbose)
63393746Sjulian			printf("my%d: 100Mbps half-duplex mode supported\n",
63493746Sjulian			       sc->my_unit);
63593746Sjulian		ifp->if_baudrate = 100000000;
63693746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX, 0, NULL);
63793746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_HDX,
63893746Sjulian			    0, NULL);
63993746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX;
64093746Sjulian	}
64193746Sjulian	if (bmsr & PHY_BMSR_100BTXFULL) {
64293746Sjulian		if (bootverbose)
64393746Sjulian			printf("my%d: 100Mbps full-duplex mode supported\n",
64493746Sjulian			    sc->my_unit);
64593746Sjulian		ifp->if_baudrate = 100000000;
64693746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_FDX,
64793746Sjulian		    0, NULL);
64893746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX;
64993746Sjulian	}
65093746Sjulian	/* Some also support 100BaseT4. */
65193746Sjulian	if (bmsr & PHY_BMSR_100BT4) {
65293746Sjulian		if (bootverbose)
65393746Sjulian			printf("my%d: 100baseT4 mode supported\n", sc->my_unit);
65493746Sjulian		ifp->if_baudrate = 100000000;
65593746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_T4, 0, NULL);
65693746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_T4;
65793746Sjulian#ifdef FORCE_AUTONEG_TFOUR
65893746Sjulian		if (bootverbose)
65993746Sjulian			printf("my%d: forcing on autoneg support for BT4\n",
66093746Sjulian			    sc->my_unit);
66193746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0 NULL):
66293746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO;
66393746Sjulian#endif
66493746Sjulian	}
66594863Sjulian#if 0				/* this version did not support 1000M, */
66693746Sjulian	if (sc->my_pinfo->my_vid == MarvellPHYID0) {
66793746Sjulian		if (bootverbose)
66893746Sjulian			printf("my%d: 1000Mbps half-duplex mode supported\n",
66993746Sjulian			       sc->my_unit);
67093746Sjulian
67193746Sjulian		ifp->if_baudrate = 1000000000;
67295673Sphk		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T, 0, NULL);
67395673Sphk		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_HDX,
67493746Sjulian		    0, NULL);
67593746Sjulian		if (bootverbose)
67693746Sjulian			printf("my%d: 1000Mbps full-duplex mode supported\n",
67793746Sjulian			   sc->my_unit);
67893746Sjulian		ifp->if_baudrate = 1000000000;
67995673Sphk		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_FDX,
68093746Sjulian		    0, NULL);
68195673Sphk		sc->ifmedia.ifm_media = IFM_ETHER | IFM_1000_T | IFM_FDX;
68293746Sjulian	}
68393746Sjulian#endif
68493746Sjulian	if (bmsr & PHY_BMSR_CANAUTONEG) {
68593746Sjulian		if (bootverbose)
68693746Sjulian			printf("my%d: autoneg supported\n", sc->my_unit);
68793746Sjulian		ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL);
68893746Sjulian		sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO;
68993746Sjulian	}
69093746Sjulian	MY_UNLOCK(sc);
69193746Sjulian	return;
69293746Sjulian}
69393746Sjulian
69493746Sjulian/*
69593746Sjulian * Set speed and duplex mode.
69693746Sjulian */
69793746Sjulianstatic void
69893746Sjulianmy_setmode_mii(struct my_softc * sc, int media)
69993746Sjulian{
70093746Sjulian	u_int16_t       bmcr;
70193746Sjulian	struct ifnet   *ifp;
70293746Sjulian
70393746Sjulian	MY_LOCK(sc);
70493746Sjulian	ifp = &sc->arpcom.ac_if;
70593746Sjulian	/*
70693746Sjulian	 * If an autoneg session is in progress, stop it.
70793746Sjulian	 */
70893746Sjulian	if (sc->my_autoneg) {
70993746Sjulian		printf("my%d: canceling autoneg session\n", sc->my_unit);
71093746Sjulian		ifp->if_timer = sc->my_autoneg = sc->my_want_auto = 0;
71193746Sjulian		bmcr = my_phy_readreg(sc, PHY_BMCR);
71293746Sjulian		bmcr &= ~PHY_BMCR_AUTONEGENBL;
71393746Sjulian		my_phy_writereg(sc, PHY_BMCR, bmcr);
71493746Sjulian	}
71593746Sjulian	printf("my%d: selecting MII, ", sc->my_unit);
71693746Sjulian	bmcr = my_phy_readreg(sc, PHY_BMCR);
71793746Sjulian	bmcr &= ~(PHY_BMCR_AUTONEGENBL | PHY_BMCR_SPEEDSEL | PHY_BMCR_1000 |
71893746Sjulian		  PHY_BMCR_DUPLEX | PHY_BMCR_LOOPBK);
71994863Sjulian
72094863Sjulian#if 0				/* this version did not support 1000M, */
72195673Sphk	if (IFM_SUBTYPE(media) == IFM_1000_T) {
72293746Sjulian		printf("1000Mbps/T4, half-duplex\n");
72393746Sjulian		bmcr &= ~PHY_BMCR_SPEEDSEL;
72493746Sjulian		bmcr &= ~PHY_BMCR_DUPLEX;
72593746Sjulian		bmcr |= PHY_BMCR_1000;
72693746Sjulian	}
72793746Sjulian#endif
72893746Sjulian	if (IFM_SUBTYPE(media) == IFM_100_T4) {
72993746Sjulian		printf("100Mbps/T4, half-duplex\n");
73093746Sjulian		bmcr |= PHY_BMCR_SPEEDSEL;
73193746Sjulian		bmcr &= ~PHY_BMCR_DUPLEX;
73293746Sjulian	}
73393746Sjulian	if (IFM_SUBTYPE(media) == IFM_100_TX) {
73493746Sjulian		printf("100Mbps, ");
73593746Sjulian		bmcr |= PHY_BMCR_SPEEDSEL;
73693746Sjulian	}
73793746Sjulian	if (IFM_SUBTYPE(media) == IFM_10_T) {
73893746Sjulian		printf("10Mbps, ");
73993746Sjulian		bmcr &= ~PHY_BMCR_SPEEDSEL;
74093746Sjulian	}
74193746Sjulian	if ((media & IFM_GMASK) == IFM_FDX) {
74293746Sjulian		printf("full duplex\n");
74393746Sjulian		bmcr |= PHY_BMCR_DUPLEX;
74493746Sjulian	} else {
74593746Sjulian		printf("half duplex\n");
74693746Sjulian		bmcr &= ~PHY_BMCR_DUPLEX;
74793746Sjulian	}
74893746Sjulian	my_phy_writereg(sc, PHY_BMCR, bmcr);
74993746Sjulian	my_setcfg(sc, bmcr);
75093746Sjulian	MY_UNLOCK(sc);
75193746Sjulian	return;
75293746Sjulian}
75393746Sjulian
75493746Sjulian/*
75593746Sjulian * The Myson manual states that in order to fiddle with the 'full-duplex' and
75693746Sjulian * '100Mbps' bits in the netconfig register, we first have to put the
75793746Sjulian * transmit and/or receive logic in the idle state.
75893746Sjulian */
75993746Sjulianstatic void
76093746Sjulianmy_setcfg(struct my_softc * sc, int bmcr)
76193746Sjulian{
76293746Sjulian	int             i, restart = 0;
76393746Sjulian
76493746Sjulian	MY_LOCK(sc);
76593746Sjulian	if (CSR_READ_4(sc, MY_TCRRCR) & (MY_TE | MY_RE)) {
76693746Sjulian		restart = 1;
76793746Sjulian		MY_CLRBIT(sc, MY_TCRRCR, (MY_TE | MY_RE));
76893746Sjulian		for (i = 0; i < MY_TIMEOUT; i++) {
76993746Sjulian			DELAY(10);
77093746Sjulian			if (!(CSR_READ_4(sc, MY_TCRRCR) &
77193746Sjulian			    (MY_TXRUN | MY_RXRUN)))
77293746Sjulian				break;
77393746Sjulian		}
77493746Sjulian		if (i == MY_TIMEOUT)
77593746Sjulian			printf("my%d: failed to force tx and rx to idle \n",
77693746Sjulian			    sc->my_unit);
77793746Sjulian	}
77893746Sjulian	MY_CLRBIT(sc, MY_TCRRCR, MY_PS1000);
77993746Sjulian	MY_CLRBIT(sc, MY_TCRRCR, MY_PS10);
78093746Sjulian	if (bmcr & PHY_BMCR_1000)
78193746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_PS1000);
78293746Sjulian	else if (!(bmcr & PHY_BMCR_SPEEDSEL))
78393746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_PS10);
78493746Sjulian	if (bmcr & PHY_BMCR_DUPLEX)
78593746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_FD);
78693746Sjulian	else
78793746Sjulian		MY_CLRBIT(sc, MY_TCRRCR, MY_FD);
78893746Sjulian	if (restart)
78993746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_TE | MY_RE);
79093746Sjulian	MY_UNLOCK(sc);
79193746Sjulian	return;
79293746Sjulian}
79393746Sjulian
79493746Sjulianstatic void
79593746Sjulianmy_reset(struct my_softc * sc)
79693746Sjulian{
79793746Sjulian	register int    i;
79893746Sjulian
79993746Sjulian	MY_LOCK(sc);
80093746Sjulian	MY_SETBIT(sc, MY_BCR, MY_SWR);
80193746Sjulian	for (i = 0; i < MY_TIMEOUT; i++) {
80293746Sjulian		DELAY(10);
80393746Sjulian		if (!(CSR_READ_4(sc, MY_BCR) & MY_SWR))
80493746Sjulian			break;
80593746Sjulian	}
80693746Sjulian	if (i == MY_TIMEOUT)
80793746Sjulian		printf("m0x%d: reset never completed!\n", sc->my_unit);
80893746Sjulian
80993746Sjulian	/* Wait a little while for the chip to get its brains in order. */
81093746Sjulian	DELAY(1000);
81193746Sjulian	MY_UNLOCK(sc);
81293746Sjulian	return;
81393746Sjulian}
81493746Sjulian
81593746Sjulian/*
81693746Sjulian * Probe for a Myson chip. Check the PCI vendor and device IDs against our
81793746Sjulian * list and return a device name if we find a match.
81893746Sjulian */
81993746Sjulianstatic int
82093746Sjulianmy_probe(device_t dev)
82193746Sjulian{
82293746Sjulian	struct my_type *t;
82393746Sjulian
82493746Sjulian	t = my_devs;
82593746Sjulian	while (t->my_name != NULL) {
82693746Sjulian		if ((pci_get_vendor(dev) == t->my_vid) &&
82793746Sjulian		    (pci_get_device(dev) == t->my_did)) {
82893746Sjulian			device_set_desc(dev, t->my_name);
82993746Sjulian			my_info_tmp = t;
83093746Sjulian			return (0);
83193746Sjulian		}
83293746Sjulian		t++;
83393746Sjulian	}
83493746Sjulian	return (ENXIO);
83593746Sjulian}
83693746Sjulian
83793746Sjulian/*
83893746Sjulian * Attach the interface. Allocate softc structures, do ifmedia setup and
83993746Sjulian * ethernet/BPF attach.
84093746Sjulian */
84193746Sjulianstatic int
84293746Sjulianmy_attach(device_t dev)
84393746Sjulian{
84493746Sjulian	int             s, i;
84593746Sjulian	u_char          eaddr[ETHER_ADDR_LEN];
84693746Sjulian	u_int32_t       command, iobase;
84793746Sjulian	struct my_softc *sc;
84893746Sjulian	struct ifnet   *ifp;
84993746Sjulian	int             media = IFM_ETHER | IFM_100_TX | IFM_FDX;
85093746Sjulian	unsigned int    round;
85193746Sjulian	caddr_t         roundptr;
85293746Sjulian	struct my_type *p;
85393746Sjulian	u_int16_t       phy_vid, phy_did, phy_sts = 0;
85493746Sjulian	int             rid, unit, error = 0;
85593746Sjulian
85693746Sjulian	s = splimp();
85793746Sjulian	sc = device_get_softc(dev);
85893746Sjulian	unit = device_get_unit(dev);
85993746Sjulian	if (sc == NULL) {
86093746Sjulian		printf("my%d: no memory for softc struct!\n", unit);
86193746Sjulian		error = ENXIO;
86293746Sjulian		goto fail;
86393746Sjulian
86493746Sjulian	}
86593746Sjulian	bzero(sc, sizeof(struct my_softc));
86695803Sjulian	mtx_init(&sc->my_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
86795803Sjulian	    MTX_DEF | MTX_RECURSE);
86893746Sjulian	MY_LOCK(sc);
86993746Sjulian
87093746Sjulian	/*
87193746Sjulian	 * Map control/status registers.
87293746Sjulian	 */
87394863Sjulian#if 0
87494863Sjulian	command = pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4);
87594863Sjulian	command |= (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN);
87694863Sjulian	pci_write_config(dev, PCI_COMMAND_STATUS_REG, command & 0x000000ff, 4);
87794863Sjulian	command = pci_read_config(dev, PCI_COMMAND_STATUS_REG, 4);
87894863Sjulian#endif
87993746Sjulian	command = pci_read_config(dev, PCIR_COMMAND, 4);
88093746Sjulian	command |= (PCIM_CMD_PORTEN | PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN);
88193746Sjulian	pci_write_config(dev, PCIR_COMMAND, command & 0x000000ff, 4);
88293746Sjulian	command = pci_read_config(dev, PCIR_COMMAND, 4);
88393746Sjulian
88493746Sjulian	if (my_info_tmp->my_did == MTD800ID) {
88593746Sjulian		iobase = pci_read_config(dev, MY_PCI_LOIO, 4);
88693746Sjulian		if (iobase & 0x300)
88793746Sjulian			MY_USEIOSPACE = 0;
88893746Sjulian	}
88993746Sjulian	if (MY_USEIOSPACE) {
89093746Sjulian		if (!(command & PCIM_CMD_PORTEN)) {
89193746Sjulian			printf("my%d: failed to enable I/O ports!\n", unit);
89293746Sjulian			free(sc, M_DEVBUF);
89393746Sjulian			error = ENXIO;
89493746Sjulian			goto fail;
89593746Sjulian		}
89693746Sjulian#if 0
89794863Sjulian		if (!pci_map_port(config_id, MY_PCI_LOIO, (u_int16_t *) & (sc->my_bhandle))) {
89894863Sjulian			printf("my%d: couldn't map ports\n", unit);
89994863Sjulian			error = ENXIO;
90094863Sjulian			goto fail;
90193746Sjulian		}
90293746Sjulian
90393746Sjulian		sc->my_btag = I386_BUS_SPACE_IO;
90493746Sjulian#endif
90593746Sjulian	} else {
90693746Sjulian		if (!(command & PCIM_CMD_MEMEN)) {
90793746Sjulian			printf("my%d: failed to enable memory mapping!\n",
90893746Sjulian			    unit);
90993746Sjulian			error = ENXIO;
91093746Sjulian			goto fail;
91193746Sjulian		}
91293746Sjulian#if 0
91393746Sjulian		 if (!pci_map_mem(config_id, MY_PCI_LOMEM, &vbase, &pbase)) {
91493746Sjulian			printf ("my%d: couldn't map memory\n", unit);
91593746Sjulian			error = ENXIO;
91693746Sjulian			goto fail;
91793746Sjulian		}
91894863Sjulian		sc->my_btag = I386_BUS_SPACE_MEM;
91994863Sjulian		sc->my_bhandle = vbase;
92093746Sjulian#endif
92193746Sjulian	}
92293746Sjulian
92393746Sjulian	rid = MY_RID;
92493746Sjulian	sc->my_res = bus_alloc_resource(dev, MY_RES, &rid,
92593746Sjulian					0, ~0, 1, RF_ACTIVE);
92693746Sjulian
92793746Sjulian	if (sc->my_res == NULL) {
92893746Sjulian		printf("my%d: couldn't map ports/memory\n", unit);
92993746Sjulian		error = ENXIO;
93093746Sjulian		goto fail;
93193746Sjulian	}
93293746Sjulian	sc->my_btag = rman_get_bustag(sc->my_res);
93393746Sjulian	sc->my_bhandle = rman_get_bushandle(sc->my_res);
93493746Sjulian
93593746Sjulian	rid = 0;
93693746Sjulian	sc->my_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
93793746Sjulian					RF_SHAREABLE | RF_ACTIVE);
93893746Sjulian
93993746Sjulian	if (sc->my_irq == NULL) {
94093746Sjulian		printf("my%d: couldn't map interrupt\n", unit);
94193746Sjulian		bus_release_resource(dev, MY_RES, MY_RID, sc->my_res);
94293746Sjulian		error = ENXIO;
94393746Sjulian		goto fail;
94493746Sjulian	}
94593746Sjulian	error = bus_setup_intr(dev, sc->my_irq, INTR_TYPE_NET,
94693746Sjulian			       my_intr, sc, &sc->my_intrhand);
94793746Sjulian
94893746Sjulian	if (error) {
94993746Sjulian		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq);
95093746Sjulian		bus_release_resource(dev, MY_RES, MY_RID, sc->my_res);
95193746Sjulian		printf("my%d: couldn't set up irq\n", unit);
95293746Sjulian		goto fail;
95393746Sjulian	}
95493746Sjulian	callout_handle_init(&sc->my_stat_ch);
95593746Sjulian
95693746Sjulian	sc->my_info = my_info_tmp;
95793746Sjulian
95893746Sjulian	/* Reset the adapter. */
95993746Sjulian	my_reset(sc);
96093746Sjulian
96193746Sjulian	/*
96293746Sjulian	 * Get station address
96393746Sjulian	 */
96493746Sjulian	for (i = 0; i < ETHER_ADDR_LEN; ++i)
96593746Sjulian		eaddr[i] = CSR_READ_1(sc, MY_PAR0 + i);
96693746Sjulian
96793746Sjulian	/*
96893746Sjulian	 * A Myson chip was detected. Inform the world.
96993746Sjulian	 */
97093746Sjulian	printf("my%d: Ethernet address: %6D\n", unit, eaddr, ":");
97193746Sjulian
97293746Sjulian	sc->my_unit = unit;
97393746Sjulian	bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
97493746Sjulian
97593746Sjulian	sc->my_ldata_ptr = malloc(sizeof(struct my_list_data) + 8,
97693746Sjulian				  M_DEVBUF, M_NOWAIT);
97793746Sjulian	if (sc->my_ldata_ptr == NULL) {
97893746Sjulian		free(sc, M_DEVBUF);
97993746Sjulian		printf("my%d: no memory for list buffers!\n", unit);
98093746Sjulian		error = ENXIO;
98193746Sjulian		goto fail;
98293746Sjulian	}
98393746Sjulian	sc->my_ldata = (struct my_list_data *) sc->my_ldata_ptr;
984106588Sjhb	round = (uintptr_t)sc->my_ldata_ptr & 0xF;
98593746Sjulian	roundptr = sc->my_ldata_ptr;
98693746Sjulian	for (i = 0; i < 8; i++) {
98793746Sjulian		if (round % 8) {
98893746Sjulian			round++;
98993746Sjulian			roundptr++;
99093746Sjulian		} else
99193746Sjulian			break;
99293746Sjulian	}
99393746Sjulian	sc->my_ldata = (struct my_list_data *) roundptr;
99493746Sjulian	bzero(sc->my_ldata, sizeof(struct my_list_data));
99593746Sjulian
99693746Sjulian	ifp = &sc->arpcom.ac_if;
99793746Sjulian	ifp->if_softc = sc;
99893746Sjulian	ifp->if_unit = unit;
99993746Sjulian	ifp->if_name = "my";
100093746Sjulian	ifp->if_mtu = ETHERMTU;
100193746Sjulian	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
100293746Sjulian	ifp->if_ioctl = my_ioctl;
100393746Sjulian	ifp->if_output = ether_output;
100493746Sjulian	ifp->if_start = my_start;
100593746Sjulian	ifp->if_watchdog = my_watchdog;
100693746Sjulian	ifp->if_init = my_init;
100793746Sjulian	ifp->if_baudrate = 10000000;
100893746Sjulian	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
100993746Sjulian
101093746Sjulian	if (sc->my_info->my_did == MTD803ID)
101193746Sjulian		sc->my_pinfo = my_phys;
101293746Sjulian	else {
101393746Sjulian		if (bootverbose)
101493746Sjulian			printf("my%d: probing for a PHY\n", sc->my_unit);
101593746Sjulian		for (i = MY_PHYADDR_MIN; i < MY_PHYADDR_MAX + 1; i++) {
101693746Sjulian			if (bootverbose)
101793746Sjulian				printf("my%d: checking address: %d\n",
101893746Sjulian				    sc->my_unit, i);
101993746Sjulian			sc->my_phy_addr = i;
102093746Sjulian			phy_sts = my_phy_readreg(sc, PHY_BMSR);
102193746Sjulian			if ((phy_sts != 0) && (phy_sts != 0xffff))
102293746Sjulian				break;
102393746Sjulian			else
102493746Sjulian				phy_sts = 0;
102593746Sjulian		}
102693746Sjulian		if (phy_sts) {
102793746Sjulian			phy_vid = my_phy_readreg(sc, PHY_VENID);
102893746Sjulian			phy_did = my_phy_readreg(sc, PHY_DEVID);
102993746Sjulian			if (bootverbose) {
103093746Sjulian				printf("my%d: found PHY at address %d, ",
103193746Sjulian				    sc->my_unit, sc->my_phy_addr);
103293746Sjulian				printf("vendor id: %x device id: %x\n",
103393746Sjulian				    phy_vid, phy_did);
103493746Sjulian			}
103593746Sjulian			p = my_phys;
103693746Sjulian			while (p->my_vid) {
103793746Sjulian				if (phy_vid == p->my_vid) {
103893746Sjulian					sc->my_pinfo = p;
103993746Sjulian					break;
104093746Sjulian				}
104193746Sjulian				p++;
104293746Sjulian			}
104393746Sjulian			if (sc->my_pinfo == NULL)
104493746Sjulian				sc->my_pinfo = &my_phys[PHY_UNKNOWN];
104593746Sjulian			if (bootverbose)
104693746Sjulian				printf("my%d: PHY type: %s\n",
104793746Sjulian				       sc->my_unit, sc->my_pinfo->my_name);
104893746Sjulian		} else {
104993746Sjulian			printf("my%d: MII without any phy!\n", sc->my_unit);
105093746Sjulian			error = ENXIO;
105193746Sjulian			goto fail;
105293746Sjulian		}
105393746Sjulian	}
105493746Sjulian
105593746Sjulian	/* Do ifmedia setup. */
105693746Sjulian	ifmedia_init(&sc->ifmedia, 0, my_ifmedia_upd, my_ifmedia_sts);
105793746Sjulian	my_getmode_mii(sc);
105893746Sjulian	my_autoneg_mii(sc, MY_FLAG_FORCEDELAY, 1);
105993746Sjulian	media = sc->ifmedia.ifm_media;
106093746Sjulian	my_stop(sc);
106193746Sjulian	ifmedia_set(&sc->ifmedia, media);
106293746Sjulian
1063106937Ssam	ether_ifattach(ifp, eaddr);
106493746Sjulian
106593746Sjulian#if 0
106693746Sjulian	at_shutdown(my_shutdown, sc, SHUTDOWN_POST_SYNC);
106793746Sjulian	shutdownhook_establish(my_shutdown, sc);
106893746Sjulian#endif
106993746Sjulian
107093746Sjulian	MY_UNLOCK(sc);
107193746Sjulian	return (0);
107293746Sjulian
107393746Sjulianfail:
107493746Sjulian	MY_UNLOCK(sc);
107593746Sjulian	mtx_destroy(&sc->my_mtx);
107693746Sjulian	splx(s);
107793746Sjulian	return (error);
107893746Sjulian}
107993746Sjulian
108093746Sjulianstatic int
108193746Sjulianmy_detach(device_t dev)
108293746Sjulian{
108393746Sjulian	struct my_softc *sc;
108493746Sjulian	struct ifnet   *ifp;
108593746Sjulian	int             s;
108693746Sjulian
108793746Sjulian	s = splimp();
108893746Sjulian	sc = device_get_softc(dev);
108993746Sjulian	MY_LOCK(sc);
109093746Sjulian	ifp = &sc->arpcom.ac_if;
1091106937Ssam	ether_ifdetach(ifp);
109293746Sjulian	my_stop(sc);
109393746Sjulian
109494863Sjulian#if 0
109594863Sjulian	bus_generic_detach(dev);
109694863Sjulian	device_delete_child(dev, sc->rl_miibus);
109794863Sjulian#endif
109894863Sjulian
109993746Sjulian	bus_teardown_intr(dev, sc->my_irq, sc->my_intrhand);
110093746Sjulian	bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq);
110193746Sjulian	bus_release_resource(dev, MY_RES, MY_RID, sc->my_res);
110294863Sjulian#if 0
110394863Sjulian	contigfree(sc->my_cdata.my_rx_buf, MY_RXBUFLEN + 32, M_DEVBUF);
110494863Sjulian#endif
110593746Sjulian	free(sc, M_DEVBUF);
110693746Sjulian	MY_UNLOCK(sc);
110793746Sjulian	splx(s);
110893746Sjulian	mtx_destroy(&sc->my_mtx);
110993746Sjulian	return (0);
111093746Sjulian}
111193746Sjulian
111293746Sjulian
111393746Sjulian/*
111493746Sjulian * Initialize the transmit descriptors.
111593746Sjulian */
111693746Sjulianstatic int
111793746Sjulianmy_list_tx_init(struct my_softc * sc)
111893746Sjulian{
111993746Sjulian	struct my_chain_data *cd;
112093746Sjulian	struct my_list_data *ld;
112193746Sjulian	int             i;
112293746Sjulian
112393746Sjulian	MY_LOCK(sc);
112493746Sjulian	cd = &sc->my_cdata;
112593746Sjulian	ld = sc->my_ldata;
112693746Sjulian	for (i = 0; i < MY_TX_LIST_CNT; i++) {
112793746Sjulian		cd->my_tx_chain[i].my_ptr = &ld->my_tx_list[i];
112893746Sjulian		if (i == (MY_TX_LIST_CNT - 1))
112993746Sjulian			cd->my_tx_chain[i].my_nextdesc = &cd->my_tx_chain[0];
113093746Sjulian		else
113193746Sjulian			cd->my_tx_chain[i].my_nextdesc =
113293746Sjulian			    &cd->my_tx_chain[i + 1];
113393746Sjulian	}
113493746Sjulian	cd->my_tx_free = &cd->my_tx_chain[0];
113593746Sjulian	cd->my_tx_tail = cd->my_tx_head = NULL;
113693746Sjulian	MY_UNLOCK(sc);
113793746Sjulian	return (0);
113893746Sjulian}
113993746Sjulian
114093746Sjulian/*
114193746Sjulian * Initialize the RX descriptors and allocate mbufs for them. Note that we
114293746Sjulian * arrange the descriptors in a closed ring, so that the last descriptor
114393746Sjulian * points back to the first.
114493746Sjulian */
114593746Sjulianstatic int
114693746Sjulianmy_list_rx_init(struct my_softc * sc)
114793746Sjulian{
114893746Sjulian	struct my_chain_data *cd;
114993746Sjulian	struct my_list_data *ld;
115093746Sjulian	int             i;
115193746Sjulian
115293746Sjulian	MY_LOCK(sc);
115393746Sjulian	cd = &sc->my_cdata;
115493746Sjulian	ld = sc->my_ldata;
115593746Sjulian	for (i = 0; i < MY_RX_LIST_CNT; i++) {
115693746Sjulian		cd->my_rx_chain[i].my_ptr =
115793746Sjulian		    (struct my_desc *) & ld->my_rx_list[i];
115897641Sjulian		if (my_newbuf(sc, &cd->my_rx_chain[i]) == ENOBUFS) {
115997641Sjulian			MY_UNLOCK(sc);
116093746Sjulian			return (ENOBUFS);
116197641Sjulian		}
116293746Sjulian		if (i == (MY_RX_LIST_CNT - 1)) {
116393746Sjulian			cd->my_rx_chain[i].my_nextdesc = &cd->my_rx_chain[0];
116493746Sjulian			ld->my_rx_list[i].my_next = vtophys(&ld->my_rx_list[0]);
116593746Sjulian		} else {
116693746Sjulian			cd->my_rx_chain[i].my_nextdesc =
116793746Sjulian			    &cd->my_rx_chain[i + 1];
116893746Sjulian			ld->my_rx_list[i].my_next =
116993746Sjulian			    vtophys(&ld->my_rx_list[i + 1]);
117093746Sjulian		}
117193746Sjulian	}
117293746Sjulian	cd->my_rx_head = &cd->my_rx_chain[0];
117393746Sjulian	MY_UNLOCK(sc);
117493746Sjulian	return (0);
117593746Sjulian}
117693746Sjulian
117793746Sjulian/*
117893746Sjulian * Initialize an RX descriptor and attach an MBUF cluster.
117993746Sjulian */
118093746Sjulianstatic int
118193746Sjulianmy_newbuf(struct my_softc * sc, struct my_chain_onefrag * c)
118293746Sjulian{
118393746Sjulian	struct mbuf    *m_new = NULL;
118493746Sjulian
118593746Sjulian	MY_LOCK(sc);
1186111119Simp	MGETHDR(m_new, M_DONTWAIT, MT_DATA);
118793746Sjulian	if (m_new == NULL) {
118893746Sjulian		printf("my%d: no memory for rx list -- packet dropped!\n",
118993746Sjulian		       sc->my_unit);
119095939Sjulian		MY_UNLOCK(sc);
119193746Sjulian		return (ENOBUFS);
119293746Sjulian	}
1193111119Simp	MCLGET(m_new, M_DONTWAIT);
119493746Sjulian	if (!(m_new->m_flags & M_EXT)) {
119593746Sjulian		printf("my%d: no memory for rx list -- packet dropped!\n",
119693746Sjulian		       sc->my_unit);
119793746Sjulian		m_freem(m_new);
119895939Sjulian		MY_UNLOCK(sc);
119993746Sjulian		return (ENOBUFS);
120093746Sjulian	}
120193746Sjulian	c->my_mbuf = m_new;
120293746Sjulian	c->my_ptr->my_data = vtophys(mtod(m_new, caddr_t));
120393746Sjulian	c->my_ptr->my_ctl = (MCLBYTES - 1) << MY_RBSShift;
120493746Sjulian	c->my_ptr->my_status = MY_OWNByNIC;
120593746Sjulian	MY_UNLOCK(sc);
120693746Sjulian	return (0);
120793746Sjulian}
120893746Sjulian
120993746Sjulian/*
121093746Sjulian * A frame has been uploaded: pass the resulting mbuf chain up to the higher
121193746Sjulian * level protocols.
121293746Sjulian */
121393746Sjulianstatic void
121493746Sjulianmy_rxeof(struct my_softc * sc)
121593746Sjulian{
121693746Sjulian	struct ether_header *eh;
121793746Sjulian	struct mbuf    *m;
121893746Sjulian	struct ifnet   *ifp;
121993746Sjulian	struct my_chain_onefrag *cur_rx;
122093746Sjulian	int             total_len = 0;
122193746Sjulian	u_int32_t       rxstat;
122293746Sjulian
122393746Sjulian	MY_LOCK(sc);
122493746Sjulian	ifp = &sc->arpcom.ac_if;
122593746Sjulian	while (!((rxstat = sc->my_cdata.my_rx_head->my_ptr->my_status)
122693746Sjulian	    & MY_OWNByNIC)) {
122793746Sjulian		cur_rx = sc->my_cdata.my_rx_head;
122893746Sjulian		sc->my_cdata.my_rx_head = cur_rx->my_nextdesc;
122993746Sjulian
123093746Sjulian		if (rxstat & MY_ES) {	/* error summary: give up this rx pkt */
123193746Sjulian			ifp->if_ierrors++;
123293746Sjulian			cur_rx->my_ptr->my_status = MY_OWNByNIC;
123393746Sjulian			continue;
123493746Sjulian		}
123593746Sjulian		/* No errors; receive the packet. */
123693746Sjulian		total_len = (rxstat & MY_FLNGMASK) >> MY_FLNGShift;
123793746Sjulian		total_len -= ETHER_CRC_LEN;
123893746Sjulian
123993746Sjulian		if (total_len < MINCLSIZE) {
124093746Sjulian			m = m_devget(mtod(cur_rx->my_mbuf, char *),
124193746Sjulian			    total_len, 0, ifp, NULL);
124293746Sjulian			cur_rx->my_ptr->my_status = MY_OWNByNIC;
124393746Sjulian			if (m == NULL) {
124493746Sjulian				ifp->if_ierrors++;
124593746Sjulian				continue;
124693746Sjulian			}
124793746Sjulian		} else {
124893746Sjulian			m = cur_rx->my_mbuf;
124993746Sjulian			/*
125093746Sjulian			 * Try to conjure up a new mbuf cluster. If that
125193746Sjulian			 * fails, it means we have an out of memory condition
125293746Sjulian			 * and should leave the buffer in place and continue.
125393746Sjulian			 * This will result in a lost packet, but there's
125493746Sjulian			 * little else we can do in this situation.
125593746Sjulian			 */
125693746Sjulian			if (my_newbuf(sc, cur_rx) == ENOBUFS) {
125793746Sjulian				ifp->if_ierrors++;
125893746Sjulian				cur_rx->my_ptr->my_status = MY_OWNByNIC;
125993746Sjulian				continue;
126093746Sjulian			}
126193746Sjulian			m->m_pkthdr.rcvif = ifp;
126293746Sjulian			m->m_pkthdr.len = m->m_len = total_len;
126393746Sjulian		}
126493746Sjulian		ifp->if_ipackets++;
126593746Sjulian		eh = mtod(m, struct ether_header *);
126693746Sjulian#if NBPFILTER > 0
126793746Sjulian		/*
126893746Sjulian		 * Handle BPF listeners. Let the BPF user see the packet, but
126993746Sjulian		 * don't pass it up to the ether_input() layer unless it's a
127093746Sjulian		 * broadcast packet, multicast packet, matches our ethernet
127193746Sjulian		 * address or the interface is in promiscuous mode.
127293746Sjulian		 */
127393746Sjulian		if (ifp->if_bpf) {
1274106937Ssam			BPF_MTAP(ifp, m);
127593746Sjulian			if (ifp->if_flags & IFF_PROMISC &&
127693746Sjulian			    (bcmp(eh->ether_dhost, sc->arpcom.ac_enaddr,
127793746Sjulian				ETHER_ADDR_LEN) &&
127893746Sjulian			     (eh->ether_dhost[0] & 1) == 0)) {
127993746Sjulian				m_freem(m);
128093746Sjulian				continue;
128193746Sjulian			}
128293746Sjulian		}
128393746Sjulian#endif
1284106937Ssam		(*ifp->if_input)(ifp, m);
128593746Sjulian	}
128693746Sjulian	MY_UNLOCK(sc);
128793746Sjulian	return;
128893746Sjulian}
128993746Sjulian
129093746Sjulian
129193746Sjulian/*
129293746Sjulian * A frame was downloaded to the chip. It's safe for us to clean up the list
129393746Sjulian * buffers.
129493746Sjulian */
129593746Sjulianstatic void
129693746Sjulianmy_txeof(struct my_softc * sc)
129793746Sjulian{
129893746Sjulian	struct my_chain *cur_tx;
129993746Sjulian	struct ifnet   *ifp;
130093746Sjulian
130193746Sjulian	MY_LOCK(sc);
130293746Sjulian	ifp = &sc->arpcom.ac_if;
130393746Sjulian	/* Clear the timeout timer. */
130493746Sjulian	ifp->if_timer = 0;
130595939Sjulian	if (sc->my_cdata.my_tx_head == NULL) {
130695939Sjulian		MY_UNLOCK(sc);
130793746Sjulian		return;
130895939Sjulian	}
130993746Sjulian	/*
131093746Sjulian	 * Go through our tx list and free mbufs for those frames that have
131193746Sjulian	 * been transmitted.
131293746Sjulian	 */
131393746Sjulian	while (sc->my_cdata.my_tx_head->my_mbuf != NULL) {
131493746Sjulian		u_int32_t       txstat;
131593746Sjulian
131693746Sjulian		cur_tx = sc->my_cdata.my_tx_head;
131793746Sjulian		txstat = MY_TXSTATUS(cur_tx);
131893746Sjulian		if ((txstat & MY_OWNByNIC) || txstat == MY_UNSENT)
131993746Sjulian			break;
132093746Sjulian		if (!(CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced)) {
132193746Sjulian			if (txstat & MY_TXERR) {
132293746Sjulian				ifp->if_oerrors++;
132393746Sjulian				if (txstat & MY_EC) /* excessive collision */
132493746Sjulian					ifp->if_collisions++;
132593746Sjulian				if (txstat & MY_LC)	/* late collision */
132693746Sjulian					ifp->if_collisions++;
132793746Sjulian			}
132893746Sjulian			ifp->if_collisions += (txstat & MY_NCRMASK) >>
132993746Sjulian			    MY_NCRShift;
133093746Sjulian		}
133193746Sjulian		ifp->if_opackets++;
133293746Sjulian		m_freem(cur_tx->my_mbuf);
133393746Sjulian		cur_tx->my_mbuf = NULL;
133493746Sjulian		if (sc->my_cdata.my_tx_head == sc->my_cdata.my_tx_tail) {
133593746Sjulian			sc->my_cdata.my_tx_head = NULL;
133693746Sjulian			sc->my_cdata.my_tx_tail = NULL;
133793746Sjulian			break;
133893746Sjulian		}
133993746Sjulian		sc->my_cdata.my_tx_head = cur_tx->my_nextdesc;
134093746Sjulian	}
134193746Sjulian	if (CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced) {
134293746Sjulian		ifp->if_collisions += (CSR_READ_4(sc, MY_TSR) & MY_NCRMask);
134393746Sjulian	}
134493746Sjulian	MY_UNLOCK(sc);
134593746Sjulian	return;
134693746Sjulian}
134793746Sjulian
134893746Sjulian/*
134993746Sjulian * TX 'end of channel' interrupt handler.
135093746Sjulian */
135193746Sjulianstatic void
135293746Sjulianmy_txeoc(struct my_softc * sc)
135393746Sjulian{
135493746Sjulian	struct ifnet   *ifp;
135593746Sjulian
135693746Sjulian	MY_LOCK(sc);
135793746Sjulian	ifp = &sc->arpcom.ac_if;
135893746Sjulian	ifp->if_timer = 0;
135993746Sjulian	if (sc->my_cdata.my_tx_head == NULL) {
136093746Sjulian		ifp->if_flags &= ~IFF_OACTIVE;
136193746Sjulian		sc->my_cdata.my_tx_tail = NULL;
136293746Sjulian		if (sc->my_want_auto)
136393746Sjulian			my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1);
136493746Sjulian	} else {
136593746Sjulian		if (MY_TXOWN(sc->my_cdata.my_tx_head) == MY_UNSENT) {
136693746Sjulian			MY_TXOWN(sc->my_cdata.my_tx_head) = MY_OWNByNIC;
136793746Sjulian			ifp->if_timer = 5;
136893746Sjulian			CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF);
136993746Sjulian		}
137093746Sjulian	}
137193746Sjulian	MY_UNLOCK(sc);
137293746Sjulian	return;
137393746Sjulian}
137493746Sjulian
137593746Sjulianstatic void
137693746Sjulianmy_intr(void *arg)
137793746Sjulian{
137893746Sjulian	struct my_softc *sc;
137993746Sjulian	struct ifnet   *ifp;
138093746Sjulian	u_int32_t       status;
138193746Sjulian
138293746Sjulian	sc = arg;
138393746Sjulian	MY_LOCK(sc);
138493746Sjulian	ifp = &sc->arpcom.ac_if;
138593746Sjulian	if (!(ifp->if_flags & IFF_UP)) {
138693746Sjulian		MY_UNLOCK(sc);
138793746Sjulian		return;
138893746Sjulian	}
138993746Sjulian	/* Disable interrupts. */
139093746Sjulian	CSR_WRITE_4(sc, MY_IMR, 0x00000000);
139193746Sjulian
139293746Sjulian	for (;;) {
139393746Sjulian		status = CSR_READ_4(sc, MY_ISR);
139493746Sjulian		status &= MY_INTRS;
139593746Sjulian		if (status)
139693746Sjulian			CSR_WRITE_4(sc, MY_ISR, status);
139793746Sjulian		else
139893746Sjulian			break;
139993746Sjulian
140093746Sjulian		if (status & MY_RI)	/* receive interrupt */
140193746Sjulian			my_rxeof(sc);
140293746Sjulian
140393746Sjulian		if ((status & MY_RBU) || (status & MY_RxErr)) {
140493746Sjulian			/* rx buffer unavailable or rx error */
140593746Sjulian			ifp->if_ierrors++;
140693746Sjulian#ifdef foo
140793746Sjulian			my_stop(sc);
140893746Sjulian			my_reset(sc);
140993746Sjulian			my_init(sc);
141093746Sjulian#endif
141193746Sjulian		}
141293746Sjulian		if (status & MY_TI)	/* tx interrupt */
141393746Sjulian			my_txeof(sc);
141493746Sjulian		if (status & MY_ETI)	/* tx early interrupt */
141593746Sjulian			my_txeof(sc);
141693746Sjulian		if (status & MY_TBU)	/* tx buffer unavailable */
141793746Sjulian			my_txeoc(sc);
141894863Sjulian
141994863Sjulian#if 0				/* 90/1/18 delete */
142094863Sjulian		if (status & MY_FBE) {
142194863Sjulian			my_reset(sc);
142294863Sjulian			my_init(sc);
142394863Sjulian		}
142494863Sjulian#endif
142594863Sjulian
142693746Sjulian	}
142793746Sjulian
142893746Sjulian	/* Re-enable interrupts. */
142993746Sjulian	CSR_WRITE_4(sc, MY_IMR, MY_INTRS);
143093746Sjulian	if (ifp->if_snd.ifq_head != NULL)
143193746Sjulian		my_start(ifp);
143293746Sjulian	MY_UNLOCK(sc);
143393746Sjulian	return;
143493746Sjulian}
143593746Sjulian
143693746Sjulian/*
143793746Sjulian * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data
143893746Sjulian * pointers to the fragment pointers.
143993746Sjulian */
144093746Sjulianstatic int
144193746Sjulianmy_encap(struct my_softc * sc, struct my_chain * c, struct mbuf * m_head)
144293746Sjulian{
144393746Sjulian	struct my_desc *f = NULL;
144493746Sjulian	int             total_len;
144593746Sjulian	struct mbuf    *m, *m_new = NULL;
144693746Sjulian
144793746Sjulian	MY_LOCK(sc);
144893746Sjulian	/* calculate the total tx pkt length */
144993746Sjulian	total_len = 0;
145093746Sjulian	for (m = m_head; m != NULL; m = m->m_next)
145193746Sjulian		total_len += m->m_len;
145293746Sjulian	/*
145393746Sjulian	 * Start packing the mbufs in this chain into the fragment pointers.
145493746Sjulian	 * Stop when we run out of fragments or hit the end of the mbuf
145593746Sjulian	 * chain.
145693746Sjulian	 */
145793746Sjulian	m = m_head;
1458111119Simp	MGETHDR(m_new, M_DONTWAIT, MT_DATA);
145993746Sjulian	if (m_new == NULL) {
146093746Sjulian		printf("my%d: no memory for tx list", sc->my_unit);
146195939Sjulian		MY_UNLOCK(sc);
146293746Sjulian		return (1);
146393746Sjulian	}
146493746Sjulian	if (m_head->m_pkthdr.len > MHLEN) {
1465111119Simp		MCLGET(m_new, M_DONTWAIT);
146693746Sjulian		if (!(m_new->m_flags & M_EXT)) {
146793746Sjulian			m_freem(m_new);
146893746Sjulian			printf("my%d: no memory for tx list", sc->my_unit);
146995939Sjulian			MY_UNLOCK(sc);
147093746Sjulian			return (1);
147193746Sjulian		}
147293746Sjulian	}
147393746Sjulian	m_copydata(m_head, 0, m_head->m_pkthdr.len, mtod(m_new, caddr_t));
147493746Sjulian	m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len;
147593746Sjulian	m_freem(m_head);
147693746Sjulian	m_head = m_new;
147793746Sjulian	f = &c->my_ptr->my_frag[0];
147893746Sjulian	f->my_status = 0;
147993746Sjulian	f->my_data = vtophys(mtod(m_new, caddr_t));
148093746Sjulian	total_len = m_new->m_len;
148193746Sjulian	f->my_ctl = MY_TXFD | MY_TXLD | MY_CRCEnable | MY_PADEnable;
148293746Sjulian	f->my_ctl |= total_len << MY_PKTShift;	/* pkt size */
148393746Sjulian	f->my_ctl |= total_len;	/* buffer size */
148494904Sjulian	/* 89/12/29 add, for mtd891 *//* [ 89? ] */
148593746Sjulian	if (sc->my_info->my_did == MTD891ID)
148693746Sjulian		f->my_ctl |= MY_ETIControl | MY_RetryTxLC;
148793746Sjulian	c->my_mbuf = m_head;
148893746Sjulian	c->my_lastdesc = 0;
148993746Sjulian	MY_TXNEXT(c) = vtophys(&c->my_nextdesc->my_ptr->my_frag[0]);
149093746Sjulian	MY_UNLOCK(sc);
149193746Sjulian	return (0);
149293746Sjulian}
149393746Sjulian
149493746Sjulian/*
149593746Sjulian * Main transmit routine. To avoid having to do mbuf copies, we put pointers
149693746Sjulian * to the mbuf data regions directly in the transmit lists. We also save a
149793746Sjulian * copy of the pointers since the transmit list fragment pointers are
149893746Sjulian * physical addresses.
149993746Sjulian */
150093746Sjulianstatic void
150193746Sjulianmy_start(struct ifnet * ifp)
150293746Sjulian{
150393746Sjulian	struct my_softc *sc;
150493746Sjulian	struct mbuf    *m_head = NULL;
150593746Sjulian	struct my_chain *cur_tx = NULL, *start_tx;
150693746Sjulian
150793746Sjulian	sc = ifp->if_softc;
150893746Sjulian	MY_LOCK(sc);
150993746Sjulian	if (sc->my_autoneg) {
151093746Sjulian		sc->my_tx_pend = 1;
151193746Sjulian		MY_UNLOCK(sc);
151293746Sjulian		return;
151393746Sjulian	}
151493746Sjulian	/*
151593746Sjulian	 * Check for an available queue slot. If there are none, punt.
151693746Sjulian	 */
151793746Sjulian	if (sc->my_cdata.my_tx_free->my_mbuf != NULL) {
151893746Sjulian		ifp->if_flags |= IFF_OACTIVE;
151993746Sjulian		MY_UNLOCK(sc);
152093746Sjulian		return;
152193746Sjulian	}
152293746Sjulian	start_tx = sc->my_cdata.my_tx_free;
152393746Sjulian	while (sc->my_cdata.my_tx_free->my_mbuf == NULL) {
152493746Sjulian		IF_DEQUEUE(&ifp->if_snd, m_head);
152593746Sjulian		if (m_head == NULL)
152693746Sjulian			break;
152793746Sjulian
152893746Sjulian		/* Pick a descriptor off the free list. */
152993746Sjulian		cur_tx = sc->my_cdata.my_tx_free;
153093746Sjulian		sc->my_cdata.my_tx_free = cur_tx->my_nextdesc;
153193746Sjulian
153293746Sjulian		/* Pack the data into the descriptor. */
153393746Sjulian		my_encap(sc, cur_tx, m_head);
153493746Sjulian
153593746Sjulian		if (cur_tx != start_tx)
153693746Sjulian			MY_TXOWN(cur_tx) = MY_OWNByNIC;
153793746Sjulian#if NBPFILTER > 0
153893746Sjulian		/*
153993746Sjulian		 * If there's a BPF listener, bounce a copy of this frame to
154093746Sjulian		 * him.
154193746Sjulian		 */
1542106937Ssam		BPF_MTAP(ifp, cur_tx->my_mbuf);
154393746Sjulian#endif
154493746Sjulian	}
154593746Sjulian	/*
154693746Sjulian	 * If there are no packets queued, bail.
154793746Sjulian	 */
154893746Sjulian	if (cur_tx == NULL) {
154993746Sjulian		MY_UNLOCK(sc);
155093746Sjulian		return;
155193746Sjulian	}
155293746Sjulian	/*
155393746Sjulian	 * Place the request for the upload interrupt in the last descriptor
155493746Sjulian	 * in the chain. This way, if we're chaining several packets at once,
155593746Sjulian	 * we'll only get an interupt once for the whole chain rather than
155693746Sjulian	 * once for each packet.
155793746Sjulian	 */
155893746Sjulian	MY_TXCTL(cur_tx) |= MY_TXIC;
155993746Sjulian	cur_tx->my_ptr->my_frag[0].my_ctl |= MY_TXIC;
156093746Sjulian	sc->my_cdata.my_tx_tail = cur_tx;
156193746Sjulian	if (sc->my_cdata.my_tx_head == NULL)
156293746Sjulian		sc->my_cdata.my_tx_head = start_tx;
156393746Sjulian	MY_TXOWN(start_tx) = MY_OWNByNIC;
156493746Sjulian	CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF);	/* tx polling demand */
156593746Sjulian
156693746Sjulian	/*
156793746Sjulian	 * Set a timeout in case the chip goes out to lunch.
156893746Sjulian	 */
156993746Sjulian	ifp->if_timer = 5;
157093746Sjulian	MY_UNLOCK(sc);
157193746Sjulian	return;
157293746Sjulian}
157393746Sjulian
157493746Sjulianstatic void
157593746Sjulianmy_init(void *xsc)
157693746Sjulian{
157793746Sjulian	struct my_softc *sc = xsc;
157893746Sjulian	struct ifnet   *ifp = &sc->arpcom.ac_if;
157993746Sjulian	int             s;
158093746Sjulian	u_int16_t       phy_bmcr = 0;
158193746Sjulian
158293746Sjulian	MY_LOCK(sc);
158393746Sjulian	if (sc->my_autoneg) {
158493746Sjulian		MY_UNLOCK(sc);
158593746Sjulian		return;
158693746Sjulian	}
158793746Sjulian	s = splimp();
158893746Sjulian	if (sc->my_pinfo != NULL)
158993746Sjulian		phy_bmcr = my_phy_readreg(sc, PHY_BMCR);
159093746Sjulian	/*
159193746Sjulian	 * Cancel pending I/O and free all RX/TX buffers.
159293746Sjulian	 */
159393746Sjulian	my_stop(sc);
159493746Sjulian	my_reset(sc);
159593746Sjulian
159693746Sjulian	/*
159793746Sjulian	 * Set cache alignment and burst length.
159893746Sjulian	 */
159994863Sjulian#if 0				/* 89/9/1 modify,  */
160094863Sjulian	CSR_WRITE_4(sc, MY_BCR, MY_RPBLE512);
160194863Sjulian	CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF);
160294863Sjulian#endif
160393746Sjulian	CSR_WRITE_4(sc, MY_BCR, MY_PBL8);
160493746Sjulian	CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF | MY_RBLEN | MY_RPBLE512);
160593746Sjulian	/*
160693746Sjulian	 * 89/12/29 add, for mtd891,
160793746Sjulian	 */
160893746Sjulian	if (sc->my_info->my_did == MTD891ID) {
160993746Sjulian		MY_SETBIT(sc, MY_BCR, MY_PROG);
161093746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_Enhanced);
161193746Sjulian	}
161293746Sjulian	my_setcfg(sc, phy_bmcr);
161393746Sjulian	/* Init circular RX list. */
161493746Sjulian	if (my_list_rx_init(sc) == ENOBUFS) {
161593746Sjulian		printf("my%d: init failed: no memory for rx buffers\n",
161693746Sjulian		    sc->my_unit);
161793746Sjulian		my_stop(sc);
161893746Sjulian		(void)splx(s);
161993746Sjulian		MY_UNLOCK(sc);
162093746Sjulian		return;
162193746Sjulian	}
162293746Sjulian	/* Init TX descriptors. */
162393746Sjulian	my_list_tx_init(sc);
162493746Sjulian
162593746Sjulian	/* If we want promiscuous mode, set the allframes bit. */
162693746Sjulian	if (ifp->if_flags & IFF_PROMISC)
162793746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_PROM);
162893746Sjulian	else
162993746Sjulian		MY_CLRBIT(sc, MY_TCRRCR, MY_PROM);
163093746Sjulian
163193746Sjulian	/*
163293746Sjulian	 * Set capture broadcast bit to capture broadcast frames.
163393746Sjulian	 */
163493746Sjulian	if (ifp->if_flags & IFF_BROADCAST)
163593746Sjulian		MY_SETBIT(sc, MY_TCRRCR, MY_AB);
163693746Sjulian	else
163793746Sjulian		MY_CLRBIT(sc, MY_TCRRCR, MY_AB);
163893746Sjulian
163993746Sjulian	/*
164093746Sjulian	 * Program the multicast filter, if necessary.
164193746Sjulian	 */
164293746Sjulian	my_setmulti(sc);
164393746Sjulian
164493746Sjulian	/*
164593746Sjulian	 * Load the address of the RX list.
164693746Sjulian	 */
164793746Sjulian	MY_CLRBIT(sc, MY_TCRRCR, MY_RE);
164893746Sjulian	CSR_WRITE_4(sc, MY_RXLBA, vtophys(&sc->my_ldata->my_rx_list[0]));
164993746Sjulian
165093746Sjulian	/*
165193746Sjulian	 * Enable interrupts.
165293746Sjulian	 */
165393746Sjulian	CSR_WRITE_4(sc, MY_IMR, MY_INTRS);
165493746Sjulian	CSR_WRITE_4(sc, MY_ISR, 0xFFFFFFFF);
165593746Sjulian
165693746Sjulian	/* Enable receiver and transmitter. */
165793746Sjulian	MY_SETBIT(sc, MY_TCRRCR, MY_RE);
165893746Sjulian	MY_CLRBIT(sc, MY_TCRRCR, MY_TE);
165993746Sjulian	CSR_WRITE_4(sc, MY_TXLBA, vtophys(&sc->my_ldata->my_tx_list[0]));
166093746Sjulian	MY_SETBIT(sc, MY_TCRRCR, MY_TE);
166193746Sjulian
166293746Sjulian	/* Restore state of BMCR */
166393746Sjulian	if (sc->my_pinfo != NULL)
166493746Sjulian		my_phy_writereg(sc, PHY_BMCR, phy_bmcr);
166593746Sjulian	ifp->if_flags |= IFF_RUNNING;
166693746Sjulian	ifp->if_flags &= ~IFF_OACTIVE;
166793746Sjulian	(void)splx(s);
166893746Sjulian	MY_UNLOCK(sc);
166993746Sjulian	return;
167093746Sjulian}
167193746Sjulian
167293746Sjulian/*
167393746Sjulian * Set media options.
167493746Sjulian */
167593746Sjulian
167693746Sjulianstatic int
167793746Sjulianmy_ifmedia_upd(struct ifnet * ifp)
167893746Sjulian{
167993746Sjulian	struct my_softc *sc;
168093746Sjulian	struct ifmedia *ifm;
168193746Sjulian
168293746Sjulian	sc = ifp->if_softc;
168393746Sjulian	MY_LOCK(sc);
168493746Sjulian	ifm = &sc->ifmedia;
168593746Sjulian	if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) {
168693746Sjulian		MY_UNLOCK(sc);
168793746Sjulian		return (EINVAL);
168893746Sjulian	}
168993746Sjulian	if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO)
169093746Sjulian		my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1);
169193746Sjulian	else
169293746Sjulian		my_setmode_mii(sc, ifm->ifm_media);
169393746Sjulian	MY_UNLOCK(sc);
169493746Sjulian	return (0);
169593746Sjulian}
169693746Sjulian
169793746Sjulian/*
169893746Sjulian * Report current media status.
169993746Sjulian */
170093746Sjulian
170193746Sjulianstatic void
170293746Sjulianmy_ifmedia_sts(struct ifnet * ifp, struct ifmediareq * ifmr)
170393746Sjulian{
170493746Sjulian	struct my_softc *sc;
170593746Sjulian	u_int16_t advert = 0, ability = 0;
170693746Sjulian
170793746Sjulian	sc = ifp->if_softc;
170893746Sjulian	MY_LOCK(sc);
170993746Sjulian	ifmr->ifm_active = IFM_ETHER;
171093746Sjulian	if (!(my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_AUTONEGENBL)) {
171194863Sjulian#if 0				/* this version did not support 1000M, */
171294863Sjulian		if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_1000)
171394863Sjulian			ifmr->ifm_active = IFM_ETHER | IFM_1000TX;
171494863Sjulian#endif
171593746Sjulian		if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_SPEEDSEL)
171693746Sjulian			ifmr->ifm_active = IFM_ETHER | IFM_100_TX;
171793746Sjulian		else
171893746Sjulian			ifmr->ifm_active = IFM_ETHER | IFM_10_T;
171993746Sjulian		if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_DUPLEX)
172093746Sjulian			ifmr->ifm_active |= IFM_FDX;
172193746Sjulian		else
172293746Sjulian			ifmr->ifm_active |= IFM_HDX;
172393746Sjulian
172493746Sjulian		MY_UNLOCK(sc);
172593746Sjulian		return;
172693746Sjulian	}
172793746Sjulian	ability = my_phy_readreg(sc, PHY_LPAR);
172893746Sjulian	advert = my_phy_readreg(sc, PHY_ANAR);
172993746Sjulian
173094863Sjulian#if 0				/* this version did not support 1000M, */
173193746Sjulian	if (sc->my_pinfo->my_vid = MarvellPHYID0) {
173293746Sjulian		ability2 = my_phy_readreg(sc, PHY_1000SR);
173393746Sjulian		if (ability2 & PHY_1000SR_1000BTXFULL) {
173493746Sjulian			advert = 0;
173593746Sjulian			ability = 0;
173695673Sphk	  		ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_FDX;
173793746Sjulian	  	} else if (ability & PHY_1000SR_1000BTXHALF) {
173893746Sjulian			advert = 0;
173993746Sjulian			ability = 0;
174095673Sphk			ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_HDX;
174193746Sjulian		}
174293746Sjulian	}
174393746Sjulian#endif
174493746Sjulian	if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4)
174593746Sjulian		ifmr->ifm_active = IFM_ETHER | IFM_100_T4;
174693746Sjulian	else if (advert & PHY_ANAR_100BTXFULL && ability & PHY_ANAR_100BTXFULL)
174793746Sjulian		ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_FDX;
174893746Sjulian	else if (advert & PHY_ANAR_100BTXHALF && ability & PHY_ANAR_100BTXHALF)
174993746Sjulian		ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_HDX;
175093746Sjulian	else if (advert & PHY_ANAR_10BTFULL && ability & PHY_ANAR_10BTFULL)
175193746Sjulian		ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_FDX;
175293746Sjulian	else if (advert & PHY_ANAR_10BTHALF && ability & PHY_ANAR_10BTHALF)
175393746Sjulian		ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_HDX;
175493746Sjulian	MY_UNLOCK(sc);
175593746Sjulian	return;
175693746Sjulian}
175793746Sjulian
175893746Sjulianstatic int
175993746Sjulianmy_ioctl(struct ifnet * ifp, u_long command, caddr_t data)
176093746Sjulian{
176193746Sjulian	struct my_softc *sc = ifp->if_softc;
176293746Sjulian	struct ifreq   *ifr = (struct ifreq *) data;
176393746Sjulian	int             s, error = 0;
176493746Sjulian
176593746Sjulian	s = splimp();
176693746Sjulian	MY_LOCK(sc);
176793746Sjulian	switch (command) {
176893746Sjulian	case SIOCSIFFLAGS:
176993746Sjulian		if (ifp->if_flags & IFF_UP)
177093746Sjulian			my_init(sc);
177193746Sjulian		else if (ifp->if_flags & IFF_RUNNING)
177293746Sjulian			my_stop(sc);
177393746Sjulian		error = 0;
177493746Sjulian		break;
177593746Sjulian	case SIOCADDMULTI:
177693746Sjulian	case SIOCDELMULTI:
177793746Sjulian		my_setmulti(sc);
177893746Sjulian		error = 0;
177993746Sjulian		break;
178093746Sjulian	case SIOCGIFMEDIA:
178193746Sjulian	case SIOCSIFMEDIA:
178293746Sjulian		error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command);
178393746Sjulian		break;
178493746Sjulian	default:
1785106937Ssam		error = ether_ioctl(ifp, command, data);
178693746Sjulian		break;
178793746Sjulian	}
178893746Sjulian	MY_UNLOCK(sc);
178993746Sjulian	(void)splx(s);
179093746Sjulian	return (error);
179193746Sjulian}
179293746Sjulian
179393746Sjulianstatic void
179493746Sjulianmy_watchdog(struct ifnet * ifp)
179593746Sjulian{
179693746Sjulian	struct my_softc *sc;
179793746Sjulian
179893746Sjulian	sc = ifp->if_softc;
179993746Sjulian	MY_LOCK(sc);
180093746Sjulian	if (sc->my_autoneg) {
180193746Sjulian		my_autoneg_mii(sc, MY_FLAG_DELAYTIMEO, 1);
180293746Sjulian		MY_UNLOCK(sc);
180393746Sjulian		return;
180493746Sjulian	}
180593746Sjulian	ifp->if_oerrors++;
180693746Sjulian	printf("my%d: watchdog timeout\n", sc->my_unit);
180793746Sjulian	if (!(my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT))
180893746Sjulian		printf("my%d: no carrier - transceiver cable problem?\n",
180993746Sjulian		    sc->my_unit);
181093746Sjulian	my_stop(sc);
181193746Sjulian	my_reset(sc);
181293746Sjulian	my_init(sc);
181393746Sjulian	if (ifp->if_snd.ifq_head != NULL)
181493746Sjulian		my_start(ifp);
181593746Sjulian	MY_LOCK(sc);
181693746Sjulian	return;
181793746Sjulian}
181893746Sjulian
181993746Sjulian
182093746Sjulian/*
182193746Sjulian * Stop the adapter and free any mbufs allocated to the RX and TX lists.
182293746Sjulian */
182393746Sjulianstatic void
182493746Sjulianmy_stop(struct my_softc * sc)
182593746Sjulian{
182693746Sjulian	register int    i;
182793746Sjulian	struct ifnet   *ifp;
182893746Sjulian
182993746Sjulian	MY_LOCK(sc);
183093746Sjulian	ifp = &sc->arpcom.ac_if;
183193746Sjulian	ifp->if_timer = 0;
183293746Sjulian
183393746Sjulian	MY_CLRBIT(sc, MY_TCRRCR, (MY_RE | MY_TE));
183493746Sjulian	CSR_WRITE_4(sc, MY_IMR, 0x00000000);
183593746Sjulian	CSR_WRITE_4(sc, MY_TXLBA, 0x00000000);
183693746Sjulian	CSR_WRITE_4(sc, MY_RXLBA, 0x00000000);
183793746Sjulian
183893746Sjulian	/*
183993746Sjulian	 * Free data in the RX lists.
184093746Sjulian	 */
184193746Sjulian	for (i = 0; i < MY_RX_LIST_CNT; i++) {
184293746Sjulian		if (sc->my_cdata.my_rx_chain[i].my_mbuf != NULL) {
184393746Sjulian			m_freem(sc->my_cdata.my_rx_chain[i].my_mbuf);
184493746Sjulian			sc->my_cdata.my_rx_chain[i].my_mbuf = NULL;
184593746Sjulian		}
184693746Sjulian	}
184793746Sjulian	bzero((char *)&sc->my_ldata->my_rx_list,
184893746Sjulian	    sizeof(sc->my_ldata->my_rx_list));
184993746Sjulian	/*
185093746Sjulian	 * Free the TX list buffers.
185193746Sjulian	 */
185293746Sjulian	for (i = 0; i < MY_TX_LIST_CNT; i++) {
185393746Sjulian		if (sc->my_cdata.my_tx_chain[i].my_mbuf != NULL) {
185493746Sjulian			m_freem(sc->my_cdata.my_tx_chain[i].my_mbuf);
185593746Sjulian			sc->my_cdata.my_tx_chain[i].my_mbuf = NULL;
185693746Sjulian		}
185793746Sjulian	}
185893746Sjulian	bzero((char *)&sc->my_ldata->my_tx_list,
185993746Sjulian	    sizeof(sc->my_ldata->my_tx_list));
186093746Sjulian	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
186193746Sjulian	MY_UNLOCK(sc);
186293746Sjulian	return;
186393746Sjulian}
186493746Sjulian
186593746Sjulian/*
186693746Sjulian * Stop all chip I/O so that the kernel's probe routines don't get confused
186793746Sjulian * by errant DMAs when rebooting.
186893746Sjulian */
186993746Sjulianstatic void
187093746Sjulianmy_shutdown(device_t dev)
187193746Sjulian{
187293746Sjulian	struct my_softc *sc;
187393746Sjulian
187493746Sjulian	sc = device_get_softc(dev);
187593746Sjulian	my_stop(sc);
187693746Sjulian	return;
187793746Sjulian}
187895939Sjulian
187995939Sjulian
1880