Move the ste driver from sys/pci to sys/dev/ste.

1 files changed, 0 insertions, 1752 deletions

diff --git a/sys/pci/if_ste.c b/sys/pci/if_ste.c
deleted file mode 100644
index e285e50..0000000
--- a/sys/pci/if_ste.c
+++ /dev/null
@@ -1,1752 +0,0 @@
-/*-
- * Copyright (c) 1997, 1998, 1999
- *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by Bill Paul.
- * 4. Neither the name of the author nor the names of any co-contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#ifdef HAVE_KERNEL_OPTION_HEADERS
-#include "opt_device_polling.h"
-#endif
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/sockio.h>
-#include <sys/mbuf.h>
-#include <sys/malloc.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <sys/socket.h>
-#include <sys/sysctl.h>
-
-#include <net/if.h>
-#include <net/if_arp.h>
-#include <net/ethernet.h>
-#include <net/if_dl.h>
-#include <net/if_media.h>
-#include <net/if_types.h>
-#include <net/if_vlan_var.h>
-
-#include <net/bpf.h>
-
-#include <vm/vm.h>              /* for vtophys */
-#include <vm/pmap.h>            /* for vtophys */
-#include <machine/bus.h>
-#include <machine/resource.h>
-#include <sys/bus.h>
-#include <sys/rman.h>
-
-#include <dev/mii/mii.h>
-#include <dev/mii/miivar.h>
-
-#include <dev/pci/pcireg.h>
-#include <dev/pci/pcivar.h>
-
-/* "device miibus" required.  See GENERIC if you get errors here. */
-#include "miibus_if.h"
-
-#define STE_USEIOSPACE
-
-#include <pci/if_stereg.h>
-
-MODULE_DEPEND(ste, pci, 1, 1, 1);
-MODULE_DEPEND(ste, ether, 1, 1, 1);
-MODULE_DEPEND(ste, miibus, 1, 1, 1);
-
-/*
- * Various supported device vendors/types and their names.
- */
-static struct ste_type ste_devs[] = {
-	{ ST_VENDORID, ST_DEVICEID_ST201_1, "Sundance ST201 10/100BaseTX" },
-	{ ST_VENDORID, ST_DEVICEID_ST201_2, "Sundance ST201 10/100BaseTX" },
-	{ DL_VENDORID, DL_DEVICEID_DL10050, "D-Link DL10050 10/100BaseTX" },
-	{ 0, 0, NULL }
-};
-
-static int ste_probe(device_t);
-static int ste_attach(device_t);
-static int ste_detach(device_t);
-static void ste_init(void *);
-static void ste_init_locked(struct ste_softc *);
-static void ste_intr(void *);
-static void ste_rxeoc(struct ste_softc *);
-static void ste_rxeof(struct ste_softc *);
-static void ste_txeoc(struct ste_softc *);
-static void ste_txeof(struct ste_softc *);
-static void ste_stats_update(void *);
-static void ste_stop(struct ste_softc *);
-static void ste_reset(struct ste_softc *);
-static int ste_ioctl(struct ifnet *, u_long, caddr_t);
-static int ste_encap(struct ste_softc *, struct ste_chain *, struct mbuf *);
-static void ste_start(struct ifnet *);
-static void ste_start_locked(struct ifnet *);
-static void ste_watchdog(struct ifnet *);
-static int ste_shutdown(device_t);
-static int ste_newbuf(struct ste_softc *, struct ste_chain_onefrag *,
-		struct mbuf *);
-static int ste_ifmedia_upd(struct ifnet *);
-static void ste_ifmedia_upd_locked(struct ifnet *);
-static void ste_ifmedia_sts(struct ifnet *, struct ifmediareq *);
-
-static void ste_mii_sync(struct ste_softc *);
-static void ste_mii_send(struct ste_softc *, u_int32_t, int);
-static int ste_mii_readreg(struct ste_softc *, struct ste_mii_frame *);
-static int ste_mii_writereg(struct ste_softc *, struct ste_mii_frame *);
-static int ste_miibus_readreg(device_t, int, int);
-static int ste_miibus_writereg(device_t, int, int, int);
-static void ste_miibus_statchg(device_t);
-
-static int ste_eeprom_wait(struct ste_softc *);
-static int ste_read_eeprom(struct ste_softc *, caddr_t, int, int, int);
-static void ste_wait(struct ste_softc *);
-static void ste_setmulti(struct ste_softc *);
-static int ste_init_rx_list(struct ste_softc *);
-static void ste_init_tx_list(struct ste_softc *);
-
-#ifdef STE_USEIOSPACE
-#define STE_RES			SYS_RES_IOPORT
-#define STE_RID			STE_PCI_LOIO
-#else
-#define STE_RES			SYS_RES_MEMORY
-#define STE_RID			STE_PCI_LOMEM
-#endif
-
-static device_method_t ste_methods[] = {
-	/* Device interface */
-	DEVMETHOD(device_probe,		ste_probe),
-	DEVMETHOD(device_attach,	ste_attach),
-	DEVMETHOD(device_detach,	ste_detach),
-	DEVMETHOD(device_shutdown,	ste_shutdown),
-
-	/* bus interface */
-	DEVMETHOD(bus_print_child,	bus_generic_print_child),
-	DEVMETHOD(bus_driver_added,	bus_generic_driver_added),
-
-	/* MII interface */
-	DEVMETHOD(miibus_readreg,	ste_miibus_readreg),
-	DEVMETHOD(miibus_writereg,	ste_miibus_writereg),
-	DEVMETHOD(miibus_statchg,	ste_miibus_statchg),
-
-	{ 0, 0 }
-};
-
-static driver_t ste_driver = {
-	"ste",
-	ste_methods,
-	sizeof(struct ste_softc)
-};
-
-static devclass_t ste_devclass;
-
-DRIVER_MODULE(ste, pci, ste_driver, ste_devclass, 0, 0);
-DRIVER_MODULE(miibus, ste, miibus_driver, miibus_devclass, 0, 0);
-
-SYSCTL_NODE(_hw, OID_AUTO, ste, CTLFLAG_RD, 0, "if_ste parameters");
-
-static int ste_rxsyncs;
-SYSCTL_INT(_hw_ste, OID_AUTO, rxsyncs, CTLFLAG_RW, &ste_rxsyncs, 0, "");
-
-#define STE_SETBIT4(sc, reg, x)				\
-	CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x))
-
-#define STE_CLRBIT4(sc, reg, x)				\
-	CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x))
-
-#define STE_SETBIT2(sc, reg, x)				\
-	CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) | (x))
-
-#define STE_CLRBIT2(sc, reg, x)				\
-	CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) & ~(x))
-
-#define STE_SETBIT1(sc, reg, x)				\
-	CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) | (x))
-
-#define STE_CLRBIT1(sc, reg, x)				\
-	CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) & ~(x))
-
-
-#define MII_SET(x)		STE_SETBIT1(sc, STE_PHYCTL, x)
-#define MII_CLR(x)		STE_CLRBIT1(sc, STE_PHYCTL, x) 
-
-/*
- * Sync the PHYs by setting data bit and strobing the clock 32 times.
- */
-static void
-ste_mii_sync(sc)
-	struct ste_softc		*sc;
-{
-	register int		i;
-
-	MII_SET(STE_PHYCTL_MDIR|STE_PHYCTL_MDATA);
-
-	for (i = 0; i < 32; i++) {
-		MII_SET(STE_PHYCTL_MCLK);
-		DELAY(1);
-		MII_CLR(STE_PHYCTL_MCLK);
-		DELAY(1);
-	}
-
-	return;
-}
-
-/*
- * Clock a series of bits through the MII.
- */
-static void
-ste_mii_send(sc, bits, cnt)
-	struct ste_softc		*sc;
-	u_int32_t		bits;
-	int			cnt;
-{
-	int			i;
-
-	MII_CLR(STE_PHYCTL_MCLK);
-
-	for (i = (0x1 << (cnt - 1)); i; i >>= 1) {
-		if (bits & i) {
-			MII_SET(STE_PHYCTL_MDATA);
-                } else {
-			MII_CLR(STE_PHYCTL_MDATA);
-                }
-		DELAY(1);
-		MII_CLR(STE_PHYCTL_MCLK);
-		DELAY(1);
-		MII_SET(STE_PHYCTL_MCLK);
-	}
-}
-
-/*
- * Read an PHY register through the MII.
- */
-static int
-ste_mii_readreg(sc, frame)
-	struct ste_softc		*sc;
-	struct ste_mii_frame	*frame;
-	
-{
-	int			i, ack;
-
-	/*
-	 * Set up frame for RX.
-	 */
-	frame->mii_stdelim = STE_MII_STARTDELIM;
-	frame->mii_opcode = STE_MII_READOP;
-	frame->mii_turnaround = 0;
-	frame->mii_data = 0;
-	
-	CSR_WRITE_2(sc, STE_PHYCTL, 0);
-	/*
- 	 * Turn on data xmit.
-	 */
-	MII_SET(STE_PHYCTL_MDIR);
-
-	ste_mii_sync(sc);
-
-	/*
-	 * Send command/address info.
-	 */
-	ste_mii_send(sc, frame->mii_stdelim, 2);
-	ste_mii_send(sc, frame->mii_opcode, 2);
-	ste_mii_send(sc, frame->mii_phyaddr, 5);
-	ste_mii_send(sc, frame->mii_regaddr, 5);
-
-	/* Turn off xmit. */
-	MII_CLR(STE_PHYCTL_MDIR);
-
-	/* Idle bit */
-	MII_CLR((STE_PHYCTL_MCLK|STE_PHYCTL_MDATA));
-	DELAY(1);
-	MII_SET(STE_PHYCTL_MCLK);
-	DELAY(1);
-
-	/* Check for ack */
-	MII_CLR(STE_PHYCTL_MCLK);
-	DELAY(1);
-	ack = CSR_READ_2(sc, STE_PHYCTL) & STE_PHYCTL_MDATA;
-	MII_SET(STE_PHYCTL_MCLK);
-	DELAY(1);
-
-	/*
-	 * Now try reading data bits. If the ack failed, we still
-	 * need to clock through 16 cycles to keep the PHY(s) in sync.
-	 */
-	if (ack) {
-		for(i = 0; i < 16; i++) {
-			MII_CLR(STE_PHYCTL_MCLK);
-			DELAY(1);
-			MII_SET(STE_PHYCTL_MCLK);
-			DELAY(1);
-		}
-		goto fail;
-	}
-
-	for (i = 0x8000; i; i >>= 1) {
-		MII_CLR(STE_PHYCTL_MCLK);
-		DELAY(1);
-		if (!ack) {
-			if (CSR_READ_2(sc, STE_PHYCTL) & STE_PHYCTL_MDATA)
-				frame->mii_data |= i;
-			DELAY(1);
-		}
-		MII_SET(STE_PHYCTL_MCLK);
-		DELAY(1);
-	}
-
-fail:
-
-	MII_CLR(STE_PHYCTL_MCLK);
-	DELAY(1);
-	MII_SET(STE_PHYCTL_MCLK);
-	DELAY(1);
-
-	if (ack)
-		return(1);
-	return(0);
-}
-
-/*
- * Write to a PHY register through the MII.
- */
-static int
-ste_mii_writereg(sc, frame)
-	struct ste_softc		*sc;
-	struct ste_mii_frame	*frame;
-	
-{
-
-	/*
-	 * Set up frame for TX.
-	 */
-
-	frame->mii_stdelim = STE_MII_STARTDELIM;
-	frame->mii_opcode = STE_MII_WRITEOP;
-	frame->mii_turnaround = STE_MII_TURNAROUND;
-	
-	/*
- 	 * Turn on data output.
-	 */
-	MII_SET(STE_PHYCTL_MDIR);
-
-	ste_mii_sync(sc);
-
-	ste_mii_send(sc, frame->mii_stdelim, 2);
-	ste_mii_send(sc, frame->mii_opcode, 2);
-	ste_mii_send(sc, frame->mii_phyaddr, 5);
-	ste_mii_send(sc, frame->mii_regaddr, 5);
-	ste_mii_send(sc, frame->mii_turnaround, 2);
-	ste_mii_send(sc, frame->mii_data, 16);
-
-	/* Idle bit. */
-	MII_SET(STE_PHYCTL_MCLK);
-	DELAY(1);
-	MII_CLR(STE_PHYCTL_MCLK);
-	DELAY(1);
-
-	/*
-	 * Turn off xmit.
-	 */
-	MII_CLR(STE_PHYCTL_MDIR);
-
-	return(0);
-}
-
-static int
-ste_miibus_readreg(dev, phy, reg)
-	device_t		dev;
-	int			phy, reg;
-{
-	struct ste_softc	*sc;
-	struct ste_mii_frame	frame;
-
-	sc = device_get_softc(dev);
-
-	if ( sc->ste_one_phy && phy != 0 )
-		return (0);
-
-	bzero((char *)&frame, sizeof(frame));
-
-	frame.mii_phyaddr = phy;
-	frame.mii_regaddr = reg;
-	ste_mii_readreg(sc, &frame);
-
-	return(frame.mii_data);
-}
-
-static int
-ste_miibus_writereg(dev, phy, reg, data)
-	device_t		dev;
-	int			phy, reg, data;
-{
-	struct ste_softc	*sc;
-	struct ste_mii_frame	frame;
-
-	sc = device_get_softc(dev);
-	bzero((char *)&frame, sizeof(frame));
-
-	frame.mii_phyaddr = phy;
-	frame.mii_regaddr = reg;
-	frame.mii_data = data;
-
-	ste_mii_writereg(sc, &frame);
-
-	return(0);
-}
-
-static void
-ste_miibus_statchg(dev)
-	device_t		dev;
-{
-	struct ste_softc	*sc;
-	struct mii_data		*mii;
-
-	sc = device_get_softc(dev);
-
-	mii = device_get_softc(sc->ste_miibus);
-
-	if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) {
-		STE_SETBIT2(sc, STE_MACCTL0, STE_MACCTL0_FULLDUPLEX);
-	} else {
-		STE_CLRBIT2(sc, STE_MACCTL0, STE_MACCTL0_FULLDUPLEX);
-	}
-
-	return;
-}
- 
-static int
-ste_ifmedia_upd(ifp)
-	struct ifnet		*ifp;
-{
-	struct ste_softc	*sc;
-
-	sc = ifp->if_softc;
-	STE_LOCK(sc);
-	ste_ifmedia_upd_locked(ifp);
-	STE_UNLOCK(sc);
-
-	return(0);	
-}
-
-static void
-ste_ifmedia_upd_locked(ifp)
-	struct ifnet		*ifp;
-{
-	struct ste_softc	*sc;
-	struct mii_data		*mii;
-
-	sc = ifp->if_softc;
-	STE_LOCK_ASSERT(sc);
-	mii = device_get_softc(sc->ste_miibus);
-	sc->ste_link = 0;
-	if (mii->mii_instance) {
-		struct mii_softc	*miisc;
-		LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
-			mii_phy_reset(miisc);
-	}
-	mii_mediachg(mii);
-}
-
-static void
-ste_ifmedia_sts(ifp, ifmr)
-	struct ifnet		*ifp;
-	struct ifmediareq	*ifmr;
-{
-	struct ste_softc	*sc;
-	struct mii_data		*mii;
-
-	sc = ifp->if_softc;
-	mii = device_get_softc(sc->ste_miibus);
-
-	STE_LOCK(sc);
-	mii_pollstat(mii);
-	ifmr->ifm_active = mii->mii_media_active;
-	ifmr->ifm_status = mii->mii_media_status;
-	STE_UNLOCK(sc);
-
-	return;
-}
-
-static void
-ste_wait(sc)
-	struct ste_softc		*sc;
-{
-	register int		i;
-
-	for (i = 0; i < STE_TIMEOUT; i++) {
-		if (!(CSR_READ_4(sc, STE_DMACTL) & STE_DMACTL_DMA_HALTINPROG))
-			break;
-	}
-
-	if (i == STE_TIMEOUT)
-		device_printf(sc->ste_dev, "command never completed!\n");
-
-	return;
-}
-
-/*
- * The EEPROM is slow: give it time to come ready after issuing
- * it a command.
- */
-static int
-ste_eeprom_wait(sc)
-	struct ste_softc		*sc;
-{
-	int			i;
-
-	DELAY(1000);
-
-	for (i = 0; i < 100; i++) {
-		if (CSR_READ_2(sc, STE_EEPROM_CTL) & STE_EECTL_BUSY)
-			DELAY(1000);
-		else
-			break;
-	}
-
-	if (i == 100) {
-		device_printf(sc->ste_dev, "eeprom failed to come ready\n");
-		return(1);
-	}
-
-	return(0);
-}
-
-/*
- * Read a sequence of words from the EEPROM. Note that ethernet address
- * data is stored in the EEPROM in network byte order.
- */
-static int
-ste_read_eeprom(sc, dest, off, cnt, swap)
-	struct ste_softc		*sc;
-	caddr_t			dest;
-	int			off;
-	int			cnt;
-	int			swap;
-{
-	int			err = 0, i;
-	u_int16_t		word = 0, *ptr;
-
-	if (ste_eeprom_wait(sc))
-		return(1);
-
-	for (i = 0; i < cnt; i++) {
-		CSR_WRITE_2(sc, STE_EEPROM_CTL, STE_EEOPCODE_READ | (off + i));
-		err = ste_eeprom_wait(sc);
-		if (err)
-			break;
-		word = CSR_READ_2(sc, STE_EEPROM_DATA);
-		ptr = (u_int16_t *)(dest + (i * 2));
-		if (swap)
-			*ptr = ntohs(word);
-		else
-			*ptr = word;	
-	}
-
-	return(err ? 1 : 0);
-}
-
-static void
-ste_setmulti(sc)
-	struct ste_softc	*sc;
-{
-	struct ifnet		*ifp;
-	int			h = 0;
-	u_int32_t		hashes[2] = { 0, 0 };
-	struct ifmultiaddr	*ifma;
-
-	ifp = sc->ste_ifp;
-	if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
-		STE_SETBIT1(sc, STE_RX_MODE, STE_RXMODE_ALLMULTI);
-		STE_CLRBIT1(sc, STE_RX_MODE, STE_RXMODE_MULTIHASH);
-		return;
-	}
-
-	/* first, zot all the existing hash bits */
-	CSR_WRITE_2(sc, STE_MAR0, 0);
-	CSR_WRITE_2(sc, STE_MAR1, 0);
-	CSR_WRITE_2(sc, STE_MAR2, 0);
-	CSR_WRITE_2(sc, STE_MAR3, 0);
-
-	/* now program new ones */
-	IF_ADDR_LOCK(ifp);
-	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
-		if (ifma->ifma_addr->sa_family != AF_LINK)
-			continue;
-		h = ether_crc32_be(LLADDR((struct sockaddr_dl *)
-		    ifma->ifma_addr), ETHER_ADDR_LEN) & 0x3F;
-		if (h < 32)
-			hashes[0] |= (1 << h);
-		else
-			hashes[1] |= (1 << (h - 32));
-	}
-	IF_ADDR_UNLOCK(ifp);
-
-	CSR_WRITE_2(sc, STE_MAR0, hashes[0] & 0xFFFF);
-	CSR_WRITE_2(sc, STE_MAR1, (hashes[0] >> 16) & 0xFFFF);
-	CSR_WRITE_2(sc, STE_MAR2, hashes[1] & 0xFFFF);
-	CSR_WRITE_2(sc, STE_MAR3, (hashes[1] >> 16) & 0xFFFF);
-	STE_CLRBIT1(sc, STE_RX_MODE, STE_RXMODE_ALLMULTI);
-	STE_SETBIT1(sc, STE_RX_MODE, STE_RXMODE_MULTIHASH);
-
-	return;
-}
-
-#ifdef DEVICE_POLLING
-static poll_handler_t ste_poll, ste_poll_locked;
-
-static void
-ste_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
-{
-	struct ste_softc *sc = ifp->if_softc;
-
-	STE_LOCK(sc);
-	if (ifp->if_drv_flags & IFF_DRV_RUNNING)
-		ste_poll_locked(ifp, cmd, count);
-	STE_UNLOCK(sc);
-}
-
-static void
-ste_poll_locked(struct ifnet *ifp, enum poll_cmd cmd, int count)
-{
-	struct ste_softc *sc = ifp->if_softc;
-
-	STE_LOCK_ASSERT(sc);
-
-	sc->rxcycles = count;
-	if (cmd == POLL_AND_CHECK_STATUS)
-		ste_rxeoc(sc);
-	ste_rxeof(sc);
-	ste_txeof(sc);
-	if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
-		ste_start_locked(ifp);
-
-	if (cmd == POLL_AND_CHECK_STATUS) {
-		u_int16_t status;
-
-		status = CSR_READ_2(sc, STE_ISR_ACK);
-
-		if (status & STE_ISR_TX_DONE)
-			ste_txeoc(sc);
-
-		if (status & STE_ISR_STATS_OFLOW) {
-			callout_stop(&sc->ste_stat_callout);
-			ste_stats_update(sc);
-		}
-
-		if (status & STE_ISR_LINKEVENT)
-			mii_pollstat(device_get_softc(sc->ste_miibus));
-
-		if (status & STE_ISR_HOSTERR) {
-			ste_reset(sc);
-			ste_init_locked(sc);
-		}
-	}
-}
-#endif /* DEVICE_POLLING */
-
-static void
-ste_intr(xsc)
-	void			*xsc;
-{
-	struct ste_softc	*sc;
-	struct ifnet		*ifp;
-	u_int16_t		status;
-
-	sc = xsc;
-	STE_LOCK(sc);
-	ifp = sc->ste_ifp;
-
-#ifdef DEVICE_POLLING
-	if (ifp->if_capenable & IFCAP_POLLING) {
-		STE_UNLOCK(sc);
-		return;
-	}
-#endif
-
-	/* See if this is really our interrupt. */
-	if (!(CSR_READ_2(sc, STE_ISR) & STE_ISR_INTLATCH)) {
-		STE_UNLOCK(sc);
-		return;
-	}
-
-	for (;;) {
-		status = CSR_READ_2(sc, STE_ISR_ACK);
-
-		if (!(status & STE_INTRS))
-			break;
-
-		if (status & STE_ISR_RX_DMADONE) {
-			ste_rxeoc(sc);
-			ste_rxeof(sc);
-		}
-
-		if (status & STE_ISR_TX_DMADONE)
-			ste_txeof(sc);
-
-		if (status & STE_ISR_TX_DONE)
-			ste_txeoc(sc);
-
-		if (status & STE_ISR_STATS_OFLOW) {
-			callout_stop(&sc->ste_stat_callout);
-			ste_stats_update(sc);
-		}
-
-		if (status & STE_ISR_LINKEVENT)
-			mii_pollstat(device_get_softc(sc->ste_miibus));
-
-
-		if (status & STE_ISR_HOSTERR) {
-			ste_reset(sc);
-			ste_init_locked(sc);
-		}
-	}
-
-	/* Re-enable interrupts */
-	CSR_WRITE_2(sc, STE_IMR, STE_INTRS);
-
-	if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
-		ste_start_locked(ifp);
-
-	STE_UNLOCK(sc);
-
-	return;
-}
-
-static void
-ste_rxeoc(struct ste_softc *sc)
-{
-	struct ste_chain_onefrag *cur_rx;
-
-	STE_LOCK_ASSERT(sc);
-
-	if (sc->ste_cdata.ste_rx_head->ste_ptr->ste_status == 0) {
-		cur_rx = sc->ste_cdata.ste_rx_head;
-		do {
-			cur_rx = cur_rx->ste_next;
-			/* If the ring is empty, just return. */
-			if (cur_rx == sc->ste_cdata.ste_rx_head)
-				return;
-		} while (cur_rx->ste_ptr->ste_status == 0);
-		if (sc->ste_cdata.ste_rx_head->ste_ptr->ste_status == 0) {
-			/* We've fallen behind the chip: catch it. */
-			sc->ste_cdata.ste_rx_head = cur_rx;
-			++ste_rxsyncs;
-		}
-	}
-}
-
-/*
- * A frame has been uploaded: pass the resulting mbuf chain up to
- * the higher level protocols.
- */
-static void
-ste_rxeof(sc)
-	struct ste_softc		*sc;
-{
-        struct mbuf		*m;
-        struct ifnet		*ifp;
-	struct ste_chain_onefrag	*cur_rx;
-	int			total_len = 0, count=0;
-	u_int32_t		rxstat;
-
-	STE_LOCK_ASSERT(sc);
-
-	ifp = sc->ste_ifp;
-
-	while((rxstat = sc->ste_cdata.ste_rx_head->ste_ptr->ste_status)
-	      & STE_RXSTAT_DMADONE) {
-#ifdef DEVICE_POLLING
-		if (ifp->if_capenable & IFCAP_POLLING) {
-			if (sc->rxcycles <= 0)
-				break;
-			sc->rxcycles--;
-		}
-#endif
-		if ((STE_RX_LIST_CNT - count) < 3) {
-			break;
-		}
-
-		cur_rx = sc->ste_cdata.ste_rx_head;
-		sc->ste_cdata.ste_rx_head = cur_rx->ste_next;
-
-		/*
-		 * If an error occurs, update stats, clear the
-		 * status word and leave the mbuf cluster in place:
-		 * it should simply get re-used next time this descriptor
-	 	 * comes up in the ring.
-		 */
-		if (rxstat & STE_RXSTAT_FRAME_ERR) {
-			ifp->if_ierrors++;
-			cur_rx->ste_ptr->ste_status = 0;
-			continue;
-		}
-
-		/*
-		 * If there error bit was not set, the upload complete
-		 * bit should be set which means we have a valid packet.
-		 * If not, something truly strange has happened.
-		 */
-		if (!(rxstat & STE_RXSTAT_DMADONE)) {
-			device_printf(sc->ste_dev,
-			    "bad receive status -- packet dropped\n");
-			ifp->if_ierrors++;
-			cur_rx->ste_ptr->ste_status = 0;
-			continue;
-		}
-
-		/* No errors; receive the packet. */	
-		m = cur_rx->ste_mbuf;
-		total_len = cur_rx->ste_ptr->ste_status & STE_RXSTAT_FRAMELEN;
-
-		/*
-		 * Try to conjure up a new mbuf cluster. If that
-		 * fails, it means we have an out of memory condition and
-		 * should leave the buffer in place and continue. This will
-		 * result in a lost packet, but there's little else we
-		 * can do in this situation.
-		 */
-		if (ste_newbuf(sc, cur_rx, NULL) == ENOBUFS) {
-			ifp->if_ierrors++;
-			cur_rx->ste_ptr->ste_status = 0;
-			continue;
-		}
-
-		m->m_pkthdr.rcvif = ifp;
-		m->m_pkthdr.len = m->m_len = total_len;
-
-		ifp->if_ipackets++;
-		STE_UNLOCK(sc);
-		(*ifp->if_input)(ifp, m);
-		STE_LOCK(sc);
-
-		cur_rx->ste_ptr->ste_status = 0;
-		count++;
-	}
-
-	return;
-}
-
-static void
-ste_txeoc(sc)
-	struct ste_softc	*sc;
-{
-	u_int8_t		txstat;
-	struct ifnet		*ifp;
-
-	ifp = sc->ste_ifp;
-
-	while ((txstat = CSR_READ_1(sc, STE_TX_STATUS)) &
-	    STE_TXSTATUS_TXDONE) {
-		if (txstat & STE_TXSTATUS_UNDERRUN ||
-		    txstat & STE_TXSTATUS_EXCESSCOLLS ||
-		    txstat & STE_TXSTATUS_RECLAIMERR) {
-			ifp->if_oerrors++;
-			device_printf(sc->ste_dev,
-			    "transmission error: %x\n", txstat);
-
-			ste_reset(sc);
-			ste_init_locked(sc);
-
-			if (txstat & STE_TXSTATUS_UNDERRUN &&
-			    sc->ste_tx_thresh < STE_PACKET_SIZE) {
-				sc->ste_tx_thresh += STE_MIN_FRAMELEN;
-				device_printf(sc->ste_dev,
-				    "tx underrun, increasing tx"
-				    " start threshold to %d bytes\n",
-				    sc->ste_tx_thresh);
-			}
-			CSR_WRITE_2(sc, STE_TX_STARTTHRESH, sc->ste_tx_thresh);
-			CSR_WRITE_2(sc, STE_TX_RECLAIM_THRESH,
-			    (STE_PACKET_SIZE >> 4));
-		}
-		ste_init_locked(sc);
-		CSR_WRITE_2(sc, STE_TX_STATUS, txstat);
-	}
-
-	return;
-}
-
-static void
-ste_txeof(sc)
-	struct ste_softc	*sc;
-{
-	struct ste_chain	*cur_tx;
-	struct ifnet		*ifp;
-	int			idx;
-
-	ifp = sc->ste_ifp;
-
-	idx = sc->ste_cdata.ste_tx_cons;
-	while(idx != sc->ste_cdata.ste_tx_prod) {
-		cur_tx = &sc->ste_cdata.ste_tx_chain[idx];
-
-		if (!(cur_tx->ste_ptr->ste_ctl & STE_TXCTL_DMADONE))
-			break;
-
-		m_freem(cur_tx->ste_mbuf);
-		cur_tx->ste_mbuf = NULL;
-		ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
-		ifp->if_opackets++;
-
-		STE_INC(idx, STE_TX_LIST_CNT);
-	}
-
-	sc->ste_cdata.ste_tx_cons = idx;
-	if (idx == sc->ste_cdata.ste_tx_prod)
-		ifp->if_timer = 0;
-}
-
-static void
-ste_stats_update(xsc)
-	void			*xsc;
-{
-	struct ste_softc	*sc;
-	struct ifnet		*ifp;
-	struct mii_data		*mii;
-
-	sc = xsc;
-	STE_LOCK_ASSERT(sc);
-
-	ifp = sc->ste_ifp;
-	mii = device_get_softc(sc->ste_miibus);
-
-	ifp->if_collisions += CSR_READ_1(sc, STE_LATE_COLLS)
-	    + CSR_READ_1(sc, STE_MULTI_COLLS)
-	    + CSR_READ_1(sc, STE_SINGLE_COLLS);
-
-	if (!sc->ste_link) {
-		mii_pollstat(mii);
-		if (mii->mii_media_status & IFM_ACTIVE &&
-		    IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
-			sc->ste_link++;
-			/*
-			* we don't get a call-back on re-init so do it
-			* otherwise we get stuck in the wrong link state
-			*/
-			ste_miibus_statchg(sc->ste_dev);
-			if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
-				ste_start_locked(ifp);
-		}
-	}
-
-	callout_reset(&sc->ste_stat_callout, hz, ste_stats_update, sc);
-
-	return;
-}
-
-
-/*
- * Probe for a Sundance ST201 chip. Check the PCI vendor and device
- * IDs against our list and return a device name if we find a match.
- */
-static int
-ste_probe(dev)
-	device_t		dev;
-{
-	struct ste_type		*t;
-
-	t = ste_devs;
-
-	while(t->ste_name != NULL) {
-		if ((pci_get_vendor(dev) == t->ste_vid) &&
-		    (pci_get_device(dev) == t->ste_did)) {
-			device_set_desc(dev, t->ste_name);
-			return (BUS_PROBE_DEFAULT);
-		}
-		t++;
-	}
-
-	return(ENXIO);
-}
-
-/*
- * Attach the interface. Allocate softc structures, do ifmedia
- * setup and ethernet/BPF attach.
- */
-static int
-ste_attach(dev)
-	device_t		dev;
-{
-	struct ste_softc	*sc;
-	struct ifnet		*ifp;
-	int			error = 0, rid;
-	u_char			eaddr[6];
-
-	sc = device_get_softc(dev);
-	sc->ste_dev = dev;
-
-	/*
-	 * Only use one PHY since this chip reports multiple
-	 * Note on the DFE-550 the PHY is at 1 on the DFE-580
-	 * it is at 0 & 1.  It is rev 0x12.
-	 */
-	if (pci_get_vendor(dev) == DL_VENDORID &&
-	    pci_get_device(dev) == DL_DEVICEID_DL10050 &&
-	    pci_get_revid(dev) == 0x12 )
-		sc->ste_one_phy = 1;
-
-	mtx_init(&sc->ste_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
-	    MTX_DEF);
-	/*
-	 * Map control/status registers.
-	 */
-	pci_enable_busmaster(dev);
-
-	rid = STE_RID;
-	sc->ste_res = bus_alloc_resource_any(dev, STE_RES, &rid, RF_ACTIVE);
-
-	if (sc->ste_res == NULL) {
-		device_printf(dev, "couldn't map ports/memory\n");
-		error = ENXIO;
-		goto fail;
-	}
-
-	sc->ste_btag = rman_get_bustag(sc->ste_res);
-	sc->ste_bhandle = rman_get_bushandle(sc->ste_res);
-
-	/* Allocate interrupt */
-	rid = 0;
-	sc->ste_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
-	    RF_SHAREABLE | RF_ACTIVE);
-
-	if (sc->ste_irq == NULL) {
-		device_printf(dev, "couldn't map interrupt\n");
-		error = ENXIO;
-		goto fail;
-	}
-
-	callout_init_mtx(&sc->ste_stat_callout, &sc->ste_mtx, 0);
-
-	/* Reset the adapter. */
-	ste_reset(sc);
-
-	/*
-	 * Get station address from the EEPROM.
-	 */
-	if (ste_read_eeprom(sc, eaddr,
-	    STE_EEADDR_NODE0, 3, 0)) {
-		device_printf(dev, "failed to read station address\n");
-		error = ENXIO;;
-		goto fail;
-	}
-
-	/* Allocate the descriptor queues. */
-	sc->ste_ldata = contigmalloc(sizeof(struct ste_list_data), M_DEVBUF,
-	    M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0);
-
-	if (sc->ste_ldata == NULL) {
-		device_printf(dev, "no memory for list buffers!\n");
-		error = ENXIO;
-		goto fail;
-	}
-
-	bzero(sc->ste_ldata, sizeof(struct ste_list_data));
-
-	ifp = sc->ste_ifp = if_alloc(IFT_ETHER);
-	if (ifp == NULL) {
-		device_printf(dev, "can not if_alloc()\n");
-		error = ENOSPC;
-		goto fail;
-	}
-
-	/* Do MII setup. */
-	if (mii_phy_probe(dev, &sc->ste_miibus,
-	    ste_ifmedia_upd, ste_ifmedia_sts)) {
-		device_printf(dev, "MII without any phy!\n");
-		error = ENXIO;
-		goto fail;
-	}
-
-	ifp->if_softc = sc;
-	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
-	ifp->if_mtu = ETHERMTU;
-	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
-	ifp->if_ioctl = ste_ioctl;
-	ifp->if_start = ste_start;
-	ifp->if_watchdog = ste_watchdog;
-	ifp->if_init = ste_init;
-	IFQ_SET_MAXLEN(&ifp->if_snd, STE_TX_LIST_CNT - 1);
-	ifp->if_snd.ifq_drv_maxlen = STE_TX_LIST_CNT - 1;
-	IFQ_SET_READY(&ifp->if_snd);
-
-	sc->ste_tx_thresh = STE_TXSTART_THRESH;
-
-	/*
-	 * Call MI attach routine.
-	 */
-	ether_ifattach(ifp, eaddr);
-
-	/*
-	 * Tell the upper layer(s) we support long frames.
-	 */
-	ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
-	ifp->if_capabilities |= IFCAP_VLAN_MTU;
-	ifp->if_capenable = ifp->if_capabilities;
-#ifdef DEVICE_POLLING
-	ifp->if_capabilities |= IFCAP_POLLING;
-#endif
-
-	/* Hook interrupt last to avoid having to lock softc */
-	error = bus_setup_intr(dev, sc->ste_irq, INTR_TYPE_NET | INTR_MPSAFE,
-	    NULL, ste_intr, sc, &sc->ste_intrhand);
-
-	if (error) {
-		device_printf(dev, "couldn't set up irq\n");
-		ether_ifdetach(ifp);
-		goto fail;
-	}
-
-fail:
-	if (error)
-		ste_detach(dev);
-
-	return(error);
-}
-
-/*
- * Shutdown hardware and free up resources. This can be called any
- * time after the mutex has been initialized. It is called in both
- * the error case in attach and the normal detach case so it needs
- * to be careful about only freeing resources that have actually been
- * allocated.
- */
-static int
-ste_detach(dev)
-	device_t		dev;
-{
-	struct ste_softc	*sc;
-	struct ifnet		*ifp;
-
-	sc = device_get_softc(dev);
-	KASSERT(mtx_initialized(&sc->ste_mtx), ("ste mutex not initialized"));
-	ifp = sc->ste_ifp;
-
-#ifdef DEVICE_POLLING
-	if (ifp->if_capenable & IFCAP_POLLING)
-		ether_poll_deregister(ifp);
-#endif
-
-	/* These should only be active if attach succeeded */
-	if (device_is_attached(dev)) {
-		STE_LOCK(sc);
-		ste_stop(sc);
-		STE_UNLOCK(sc);
-		callout_drain(&sc->ste_stat_callout);
-		ether_ifdetach(ifp);
-	}
-	if (sc->ste_miibus)
-		device_delete_child(dev, sc->ste_miibus);
-	bus_generic_detach(dev);
-
-	if (sc->ste_intrhand)
-		bus_teardown_intr(dev, sc->ste_irq, sc->ste_intrhand);
-	if (sc->ste_irq)
-		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ste_irq);
-	if (sc->ste_res)
-		bus_release_resource(dev, STE_RES, STE_RID, sc->ste_res);
-
-	if (ifp)
-		if_free(ifp);
-
-	if (sc->ste_ldata) {
-		contigfree(sc->ste_ldata, sizeof(struct ste_list_data),
-		    M_DEVBUF);
-	}
-
-	mtx_destroy(&sc->ste_mtx);
-
-	return(0);
-}
-
-static int
-ste_newbuf(sc, c, m)
-	struct ste_softc	*sc;
-	struct ste_chain_onefrag	*c;
-	struct mbuf		*m;
-{
-	struct mbuf		*m_new = NULL;
-
-	if (m == NULL) {
-		MGETHDR(m_new, M_DONTWAIT, MT_DATA);
-		if (m_new == NULL)
-			return(ENOBUFS);
-		MCLGET(m_new, M_DONTWAIT);
-		if (!(m_new->m_flags & M_EXT)) {
-			m_freem(m_new);
-			return(ENOBUFS);
-		}
-		m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
-	} else {
-		m_new = m;
-		m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
-		m_new->m_data = m_new->m_ext.ext_buf;
-	}
-
-	m_adj(m_new, ETHER_ALIGN);
-
-	c->ste_mbuf = m_new;
-	c->ste_ptr->ste_status = 0;
-	c->ste_ptr->ste_frag.ste_addr = vtophys(mtod(m_new, caddr_t));
-	c->ste_ptr->ste_frag.ste_len = (1536 + ETHER_VLAN_ENCAP_LEN) | STE_FRAG_LAST;
-
-	return(0);
-}
-
-static int
-ste_init_rx_list(sc)
-	struct ste_softc	*sc;
-{
-	struct ste_chain_data	*cd;
-	struct ste_list_data	*ld;
-	int			i;
-
-	cd = &sc->ste_cdata;
-	ld = sc->ste_ldata;
-
-	for (i = 0; i < STE_RX_LIST_CNT; i++) {
-		cd->ste_rx_chain[i].ste_ptr = &ld->ste_rx_list[i];
-		if (ste_newbuf(sc, &cd->ste_rx_chain[i], NULL) == ENOBUFS)
-			return(ENOBUFS);
-		if (i == (STE_RX_LIST_CNT - 1)) {
-			cd->ste_rx_chain[i].ste_next =
-			    &cd->ste_rx_chain[0];
-			ld->ste_rx_list[i].ste_next =
-			    vtophys(&ld->ste_rx_list[0]);
-		} else {
-			cd->ste_rx_chain[i].ste_next =
-			    &cd->ste_rx_chain[i + 1];
-			ld->ste_rx_list[i].ste_next =
-			    vtophys(&ld->ste_rx_list[i + 1]);
-		}
-		ld->ste_rx_list[i].ste_status = 0;
-	}
-
-	cd->ste_rx_head = &cd->ste_rx_chain[0];
-
-	return(0);
-}
-
-static void
-ste_init_tx_list(sc)
-	struct ste_softc	*sc;
-{
-	struct ste_chain_data	*cd;
-	struct ste_list_data	*ld;
-	int			i;
-
-	cd = &sc->ste_cdata;
-	ld = sc->ste_ldata;
-	for (i = 0; i < STE_TX_LIST_CNT; i++) {
-		cd->ste_tx_chain[i].ste_ptr = &ld->ste_tx_list[i];
-		cd->ste_tx_chain[i].ste_ptr->ste_next = 0;
-		cd->ste_tx_chain[i].ste_ptr->ste_ctl  = 0;
-		cd->ste_tx_chain[i].ste_phys = vtophys(&ld->ste_tx_list[i]);
-		if (i == (STE_TX_LIST_CNT - 1))
-			cd->ste_tx_chain[i].ste_next =
-			    &cd->ste_tx_chain[0];
-		else
-			cd->ste_tx_chain[i].ste_next =
-			    &cd->ste_tx_chain[i + 1];
-	}
-
-	cd->ste_tx_prod = 0;
-	cd->ste_tx_cons = 0;
-
-	return;
-}
-
-static void
-ste_init(xsc)
-	void			*xsc;
-{
-	struct ste_softc	*sc;
-
-	sc = xsc;
-	STE_LOCK(sc);
-	ste_init_locked(sc);
-	STE_UNLOCK(sc);
-}
-
-static void
-ste_init_locked(sc)
-	struct ste_softc	*sc;
-{
-	int			i;
-	struct ifnet		*ifp;
-
-	STE_LOCK_ASSERT(sc);
-	ifp = sc->ste_ifp;
-
-	ste_stop(sc);
-
-	/* Init our MAC address */
-	for (i = 0; i < ETHER_ADDR_LEN; i += 2) {
-		CSR_WRITE_2(sc, STE_PAR0 + i,
-		    ((IF_LLADDR(sc->ste_ifp)[i] & 0xff) |
-		     IF_LLADDR(sc->ste_ifp)[i + 1] << 8));
-	}
-
-	/* Init RX list */
-	if (ste_init_rx_list(sc) == ENOBUFS) {
-		device_printf(sc->ste_dev,
-		    "initialization failed: no memory for RX buffers\n");
-		ste_stop(sc);
-		return;
-	}
-
-	/* Set RX polling interval */
-	CSR_WRITE_1(sc, STE_RX_DMAPOLL_PERIOD, 64);
-
-	/* Init TX descriptors */
-	ste_init_tx_list(sc);
-
-	/* Set the TX freethresh value */
-	CSR_WRITE_1(sc, STE_TX_DMABURST_THRESH, STE_PACKET_SIZE >> 8);
-
-	/* Set the TX start threshold for best performance. */
-	CSR_WRITE_2(sc, STE_TX_STARTTHRESH, sc->ste_tx_thresh);
-
-	/* Set the TX reclaim threshold. */
-	CSR_WRITE_1(sc, STE_TX_RECLAIM_THRESH, (STE_PACKET_SIZE >> 4));
-
-	/* Set up the RX filter. */
-	CSR_WRITE_1(sc, STE_RX_MODE, STE_RXMODE_UNICAST);
-
-	/* If we want promiscuous mode, set the allframes bit. */
-	if (ifp->if_flags & IFF_PROMISC) {
-		STE_SETBIT1(sc, STE_RX_MODE, STE_RXMODE_PROMISC);
-	} else {
-		STE_CLRBIT1(sc, STE_RX_MODE, STE_RXMODE_PROMISC);
-	}
-
-	/* Set capture broadcast bit to accept broadcast frames. */
-	if (ifp->if_flags & IFF_BROADCAST) {
-		STE_SETBIT1(sc, STE_RX_MODE, STE_RXMODE_BROADCAST);
-	} else {
-		STE_CLRBIT1(sc, STE_RX_MODE, STE_RXMODE_BROADCAST);
-	}
-
-	ste_setmulti(sc);
-
-	/* Load the address of the RX list. */
-	STE_SETBIT4(sc, STE_DMACTL, STE_DMACTL_RXDMA_STALL);
-	ste_wait(sc);
-	CSR_WRITE_4(sc, STE_RX_DMALIST_PTR,
-	    vtophys(&sc->ste_ldata->ste_rx_list[0]));
-	STE_SETBIT4(sc, STE_DMACTL, STE_DMACTL_RXDMA_UNSTALL);
-	STE_SETBIT4(sc, STE_DMACTL, STE_DMACTL_RXDMA_UNSTALL);
-
-	/* Set TX polling interval (defer until we TX first packet */
-	CSR_WRITE_1(sc, STE_TX_DMAPOLL_PERIOD, 0);
-
-	/* Load address of the TX list */
-	STE_SETBIT4(sc, STE_DMACTL, STE_DMACTL_TXDMA_STALL);
-	ste_wait(sc);
-	CSR_WRITE_4(sc, STE_TX_DMALIST_PTR, 0);
-	STE_SETBIT4(sc, STE_DMACTL, STE_DMACTL_TXDMA_UNSTALL);
-	STE_SETBIT4(sc, STE_DMACTL, STE_DMACTL_TXDMA_UNSTALL);
-	ste_wait(sc);
-	sc->ste_tx_prev = NULL;
-
-	/* Enable receiver and transmitter */
-	CSR_WRITE_2(sc, STE_MACCTL0, 0);
-	CSR_WRITE_2(sc, STE_MACCTL1, 0);
-	STE_SETBIT2(sc, STE_MACCTL1, STE_MACCTL1_TX_ENABLE);
-	STE_SETBIT2(sc, STE_MACCTL1, STE_MACCTL1_RX_ENABLE);
-
-	/* Enable stats counters. */
-	STE_SETBIT2(sc, STE_MACCTL1, STE_MACCTL1_STATS_ENABLE);
-
-	CSR_WRITE_2(sc, STE_ISR, 0xFFFF);
-#ifdef DEVICE_POLLING
-	/* Disable interrupts if we are polling. */
-	if (ifp->if_capenable & IFCAP_POLLING)
-		CSR_WRITE_2(sc, STE_IMR, 0);
-	else   
-#endif
-	/* Enable interrupts. */
-	CSR_WRITE_2(sc, STE_IMR, STE_INTRS);
-
-	/* Accept VLAN length packets */
-	CSR_WRITE_2(sc, STE_MAX_FRAMELEN, ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN);
-
-	ste_ifmedia_upd_locked(ifp);
-
-	ifp->if_drv_flags |= IFF_DRV_RUNNING;
-	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
-
-	callout_reset(&sc->ste_stat_callout, hz, ste_stats_update, sc);
-
-	return;
-}
-
-static void
-ste_stop(sc)
-	struct ste_softc	*sc;
-{
-	int			i;
-	struct ifnet		*ifp;
-
-	STE_LOCK_ASSERT(sc);
-	ifp = sc->ste_ifp;
-
-	callout_stop(&sc->ste_stat_callout);
-	ifp->if_drv_flags &= ~(IFF_DRV_RUNNING|IFF_DRV_OACTIVE);
-
-	CSR_WRITE_2(sc, STE_IMR, 0);
-	STE_SETBIT2(sc, STE_MACCTL1, STE_MACCTL1_TX_DISABLE);
-	STE_SETBIT2(sc, STE_MACCTL1, STE_MACCTL1_RX_DISABLE);
-	STE_SETBIT2(sc, STE_MACCTL1, STE_MACCTL1_STATS_DISABLE);
-	STE_SETBIT2(sc, STE_DMACTL, STE_DMACTL_TXDMA_STALL);
-	STE_SETBIT2(sc, STE_DMACTL, STE_DMACTL_RXDMA_STALL);
-	ste_wait(sc);
-	/* 
-	 * Try really hard to stop the RX engine or under heavy RX 
-	 * data chip will write into de-allocated memory.
-	 */
-	ste_reset(sc);
-
-	sc->ste_link = 0;
-
-	for (i = 0; i < STE_RX_LIST_CNT; i++) {
-		if (sc->ste_cdata.ste_rx_chain[i].ste_mbuf != NULL) {
-			m_freem(sc->ste_cdata.ste_rx_chain[i].ste_mbuf);
-			sc->ste_cdata.ste_rx_chain[i].ste_mbuf = NULL;
-		}
-	}
-
-	for (i = 0; i < STE_TX_LIST_CNT; i++) {
-		if (sc->ste_cdata.ste_tx_chain[i].ste_mbuf != NULL) {
-			m_freem(sc->ste_cdata.ste_tx_chain[i].ste_mbuf);
-			sc->ste_cdata.ste_tx_chain[i].ste_mbuf = NULL;
-		}
-	}
-
-	bzero(sc->ste_ldata, sizeof(struct ste_list_data));
-
-	return;
-}
-
-static void
-ste_reset(sc)
-	struct ste_softc	*sc;
-{
-	int			i;
-
-	STE_SETBIT4(sc, STE_ASICCTL,
-	    STE_ASICCTL_GLOBAL_RESET|STE_ASICCTL_RX_RESET|
-	    STE_ASICCTL_TX_RESET|STE_ASICCTL_DMA_RESET|
-	    STE_ASICCTL_FIFO_RESET|STE_ASICCTL_NETWORK_RESET|
-	    STE_ASICCTL_AUTOINIT_RESET|STE_ASICCTL_HOST_RESET|
-	    STE_ASICCTL_EXTRESET_RESET);
-
-	DELAY(100000);
-
-	for (i = 0; i < STE_TIMEOUT; i++) {
-		if (!(CSR_READ_4(sc, STE_ASICCTL) & STE_ASICCTL_RESET_BUSY))
-			break;
-	}
-
-	if (i == STE_TIMEOUT)
-		device_printf(sc->ste_dev, "global reset never completed\n");
-
-	return;
-}
-
-static int
-ste_ioctl(ifp, command, data)
-	struct ifnet		*ifp;
-	u_long			command;
-	caddr_t			data;
-{
-	struct ste_softc	*sc;
-	struct ifreq		*ifr;
-	struct mii_data		*mii;
-	int			error = 0;
-
-	sc = ifp->if_softc;
-	ifr = (struct ifreq *)data;
-
-	switch(command) {
-	case SIOCSIFFLAGS:
-		STE_LOCK(sc);
-		if (ifp->if_flags & IFF_UP) {
-			if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
-			    ifp->if_flags & IFF_PROMISC &&
-			    !(sc->ste_if_flags & IFF_PROMISC)) {
-				STE_SETBIT1(sc, STE_RX_MODE,
-				    STE_RXMODE_PROMISC);
-			} else if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
-			    !(ifp->if_flags & IFF_PROMISC) &&
-			    sc->ste_if_flags & IFF_PROMISC) {
-				STE_CLRBIT1(sc, STE_RX_MODE,
-				    STE_RXMODE_PROMISC);
-			} 
-			if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
-			    (ifp->if_flags ^ sc->ste_if_flags) & IFF_ALLMULTI)
-				ste_setmulti(sc);
-			if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
-				sc->ste_tx_thresh = STE_TXSTART_THRESH;
-				ste_init_locked(sc);
-			}
-		} else {
-			if (ifp->if_drv_flags & IFF_DRV_RUNNING)
-				ste_stop(sc);
-		}
-		sc->ste_if_flags = ifp->if_flags;
-		STE_UNLOCK(sc);
-		error = 0;
-		break;
-	case SIOCADDMULTI:
-	case SIOCDELMULTI:
-		STE_LOCK(sc);
-		ste_setmulti(sc);
-		STE_UNLOCK(sc);
-		error = 0;
-		break;
-	case SIOCGIFMEDIA:
-	case SIOCSIFMEDIA:
-		mii = device_get_softc(sc->ste_miibus);
-		error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
-		break;
-	case SIOCSIFCAP:
-#ifdef DEVICE_POLLING
-		if (ifr->ifr_reqcap & IFCAP_POLLING &&
-		    !(ifp->if_capenable & IFCAP_POLLING)) {
-			error = ether_poll_register(ste_poll, ifp);
-			if (error)
-				return(error);
-			STE_LOCK(sc);
-			/* Disable interrupts */
-			CSR_WRITE_2(sc, STE_IMR, 0);
-			ifp->if_capenable |= IFCAP_POLLING;
-			STE_UNLOCK(sc);
-			return (error);
-			
-		}
-		if (!(ifr->ifr_reqcap & IFCAP_POLLING) &&
-		    ifp->if_capenable & IFCAP_POLLING) {
-			error = ether_poll_deregister(ifp);
-			/* Enable interrupts. */
-			STE_LOCK(sc);
-			CSR_WRITE_2(sc, STE_IMR, STE_INTRS);
-			ifp->if_capenable &= ~IFCAP_POLLING;
-			STE_UNLOCK(sc);
-			return (error);
-		}
-#endif /* DEVICE_POLLING */
-		break;
-	default:
-		error = ether_ioctl(ifp, command, data);
-		break;
-	}
-
-	return(error);
-}
-
-static int
-ste_encap(sc, c, m_head)
-	struct ste_softc	*sc;
-	struct ste_chain	*c;
-	struct mbuf		*m_head;
-{
-	int			frag = 0;
-	struct ste_frag		*f = NULL;
-	struct mbuf		*m;
-	struct ste_desc		*d;
-
-	d = c->ste_ptr;
-	d->ste_ctl = 0;
-
-encap_retry:
-	for (m = m_head, frag = 0; m != NULL; m = m->m_next) {
-		if (m->m_len != 0) {
-			if (frag == STE_MAXFRAGS)
-				break;
-			f = &d->ste_frags[frag];
-			f->ste_addr = vtophys(mtod(m, vm_offset_t));
-			f->ste_len = m->m_len;
-			frag++;
-		}
-	}
-
-	if (m != NULL) {
-		struct mbuf *mn;
-
-		/*
-		 * We ran out of segments. We have to recopy this
-		 * mbuf chain first. Bail out if we can't get the
-		 * new buffers.
-		 */
-		mn = m_defrag(m_head, M_DONTWAIT);
-		if (mn == NULL) {
-			m_freem(m_head);
-			return ENOMEM;
-		}
-		m_head = mn;
-		goto encap_retry;
-	}
-
-	c->ste_mbuf = m_head;
-	d->ste_frags[frag - 1].ste_len |= STE_FRAG_LAST;
-	d->ste_ctl = 1;
-
-	return(0);
-}
-
-static void
-ste_start(ifp)
-	struct ifnet		*ifp;
-{
-	struct ste_softc	*sc;
-
-	sc = ifp->if_softc;
-	STE_LOCK(sc);
-	ste_start_locked(ifp);
-	STE_UNLOCK(sc);
-}
-
-static void
-ste_start_locked(ifp)
-	struct ifnet		*ifp;
-{
-	struct ste_softc	*sc;
-	struct mbuf		*m_head = NULL;
-	struct ste_chain	*cur_tx;
-	int			idx;
-
-	sc = ifp->if_softc;
-	STE_LOCK_ASSERT(sc);
-
-	if (!sc->ste_link)
-		return;
-
-	if (ifp->if_drv_flags & IFF_DRV_OACTIVE)
-		return;
-
-	idx = sc->ste_cdata.ste_tx_prod;
-
-	while(sc->ste_cdata.ste_tx_chain[idx].ste_mbuf == NULL) {
-		/*
-		 * We cannot re-use the last (free) descriptor;
-		 * the chip may not have read its ste_next yet.
-		 */
-		if (STE_NEXT(idx, STE_TX_LIST_CNT) ==
-		    sc->ste_cdata.ste_tx_cons) {
-			ifp->if_drv_flags |= IFF_DRV_OACTIVE;
-			break;
-		}
-
-		IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head);
-		if (m_head == NULL)
-			break;
-
-		cur_tx = &sc->ste_cdata.ste_tx_chain[idx];
-
-		if (ste_encap(sc, cur_tx, m_head) != 0)
-			break;
-
-		cur_tx->ste_ptr->ste_next = 0;
-
-		if (sc->ste_tx_prev == NULL) {
-			cur_tx->ste_ptr->ste_ctl = STE_TXCTL_DMAINTR | 1;
-			/* Load address of the TX list */
-			STE_SETBIT4(sc, STE_DMACTL, STE_DMACTL_TXDMA_STALL);
-			ste_wait(sc);
-
-			CSR_WRITE_4(sc, STE_TX_DMALIST_PTR,
-			    vtophys(&sc->ste_ldata->ste_tx_list[0]));
-
-			/* Set TX polling interval to start TX engine */
-			CSR_WRITE_1(sc, STE_TX_DMAPOLL_PERIOD, 64);
-		  
-			STE_SETBIT4(sc, STE_DMACTL, STE_DMACTL_TXDMA_UNSTALL);
-			ste_wait(sc);
-		}else{
-			cur_tx->ste_ptr->ste_ctl = STE_TXCTL_DMAINTR | 1;
-			sc->ste_tx_prev->ste_ptr->ste_next
-				= cur_tx->ste_phys;
-		}
-
-		sc->ste_tx_prev = cur_tx;
-
-		/*
-		 * If there's a BPF listener, bounce a copy of this frame
-		 * to him.
-	 	 */
-		BPF_MTAP(ifp, cur_tx->ste_mbuf);
-
-		STE_INC(idx, STE_TX_LIST_CNT);
-		ifp->if_timer = 5;
-	}
-	sc->ste_cdata.ste_tx_prod = idx;
-
-	return;
-}
-
-static void
-ste_watchdog(ifp)
-	struct ifnet		*ifp;
-{
-	struct ste_softc	*sc;
-
-	sc = ifp->if_softc;
-	STE_LOCK(sc);
-
-	ifp->if_oerrors++;
-	if_printf(ifp, "watchdog timeout\n");
-
-	ste_txeoc(sc);
-	ste_txeof(sc);
-	ste_rxeoc(sc);
-	ste_rxeof(sc);
-	ste_reset(sc);
-	ste_init_locked(sc);
-
-	if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
-		ste_start_locked(ifp);
-	STE_UNLOCK(sc);
-
-	return;
-}
-
-static int
-ste_shutdown(dev)
-	device_t		dev;
-{
-	struct ste_softc	*sc;
-
-	sc = device_get_softc(dev);
-
-	STE_LOCK(sc);
-	ste_stop(sc);
-	STE_UNLOCK(sc);
-
-	return (0);
-}