Remove PNIC driver

6 files changed, 8 insertions, 3056 deletions

diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index 0bdf9da32e2..ba868aec1e2 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.94 2000/01/09 23:54:09 jason Exp $
+#	$OpenBSD: Makefile,v 1.95 2000/01/10 13:58:15 jason Exp $
 #	$NetBSD: Makefile,v 1.22.4.2 1996/07/18 00:51:10 jtc Exp $
 
 MAN=	ac97.4 atalk.4 atapiscsi.4 audio.4 adv.4 ahc.4 al.4 ax.4 bpf.4 \
@@ -8,7 +8,7 @@ MAN=	ac97.4 atalk.4 atapiscsi.4 audio.4 adv.4 ahc.4 al.4 ax.4 bpf.4 \
 	inet.4 inphy.4 iophy.4 ip.4 ipl.4 ipsec.4 \
 	isapnp.4 iso.4 isp.4 ksyms.4 lkm.4 lmc.4 lo.4 lxtphy.4 midi.4 mii.4 \
 	mtdphy.4 mtio.4 ncr.4 ne.4 netintro.4 ns.4 nsip.4 nsphy.4 null.4 \
-	opl.4 options.4 pciide.4 pcmcia.4 pn.4 pty.4 qsphy.4 raid.4 random.4 \
+	opl.4 options.4 pciide.4 pcmcia.4 pty.4 qsphy.4 raid.4 random.4 \
 	rl.4 rln.4 rlphy.4 route.4 scsi.4 sd.4 sf.4 sis.4 sk.4 sl.4 sm.4 \
 	spp.4 sppp.4 sqphy.4 ss.4 st.4 ste.4 sv.4 tb.4 tcp.4 termios.4 ti.4 \
 	tl.4 tlphy.4 tp.4 tqphy.4 tty.4 tun.4 tx.4 txphy.4 udp.4 ugen.4 \
diff --git a/share/man/man4/pn.4 b/share/man/man4/pn.4
deleted file mode 100644
index 03f37d5fcfb..00000000000
--- a/share/man/man4/pn.4
+++ /dev/null
@@ -1,165 +0,0 @@
-.\"	$OpenBSD: pn.4,v 1.6 1999/06/29 02:39:53 jason Exp $
-.\"
-.\" Copyright (c) 1997, 1998
-.\"	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.
-.\"
-.\"	$FreeBSD: pn.4,v 1.5 1999/05/05 07:36:58 wpaul Exp $
-.\"
-.Dd November 7, 1998
-.Dt PN 4
-.Os
-.Sh NAME
-.Nm pn
-.Nd
-Lite-On 82c168/82c169 PNIC fast ethernet device driver
-.Sh SYNOPSIS
-.Cd "pn* at pci? dev ? function ?"
-.Sh DESCRIPTION
-The
-.Nm
-driver provides support for PCI ethernet adapters and embedded
-controllers based on the Lite-On 82c168 and 82c169 fast ethernet
-controller chips. This includes the LinkSys LNE100TX, the
-Bay Networks Netgear FA310TX revision D1, the Matrox Networks
-FastNIC 10/100, the Kingston KNE110TX (EtherRx VP),
-and various other commodity fast ethernet cards.
-.Pp
-The Lite-On chips use bus master DMA and are designed to be
-DEC 'tulip' workalikes. Many vendors that formerly based their
-designs around the DEC 21x4x devices are now using the PNIC
-instead. The chips support both an internal transceiver
-and external transceivers via an MII bus. The Lite-On parts are
-advertised as being register compatible with the DEC 21x4x
-controllers; however, there are some differences in the way the
-EEPROM and MII access is done. The PNIC controllers support both
-10 and 100Mbps speeds in either full or half duplex.
-.Pp
-The
-.Nm
-driver supports the following media types:
-.Pp
-.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
-.It autoselect
-Enable autoselection of the media type and options.
-The user can manually override
-the autoselected mode by adding media options to the appropriate
-.Pa /etc/hostname.pnX
-file.
-.It 10baseT/UTP
-Set 10Mbps operation. The
-.Ar mediaopt
-option can also be used to select either
-.Ar full-duplex
-or
-.Ar half-duplex modes.
-.It 100baseTX
-Set 100Mbps (fast ethernet) operation. The
-.Ar mediaopt
-option can also be used to select either
-.Ar full-duplex
-or
-.Ar half-duplex
-modes.
-.El
-.Pp
-The
-.Nm
-driver supports the following media options:
-.Pp
-.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
-.It full-duplex
-Force full duplex operation
-.It half-duplex
-Force half duplex operation.
-.El
-.Pp
-Note that the 100baseTX media type is only available if supported
-by the adapter.
-For more information on configuring this device, see
-.Xr ifconfig 8 .
-.Sh DIAGNOSTICS
-.Bl -diag
-.It "pn%d: couldn't map memory"
-A fatal initialization error has occurred.
-.It "pn%d: couldn't map interrupt"
-A fatal initialization error has occurred.
-.It "pn%d: watchdog timeout"
-The device has stopped responding to the network, or there is a problem with
-the network connection (cable).
-.It "pn%d: no memory for rx list"
-The driver failed to allocate an mbuf for the receiver ring.
-.It "pn%d: no memory for tx list"
-The driver failed to allocate an mbuf for the transmitter ring when
-allocating a pad buffer or collapsing an mbuf chain into a cluster.
-.It "pn%d: chip is in D3 power state -- setting to D0"
-This message applies only to adapters which support power
-management. Some operating systems place the controller in low power
-mode when shutting down, and some PCI BIOSes fail to bring the chip
-out of this state before configuring it. The controller loses all of
-its PCI configuration in the D3 state, so if the BIOS does not set
-it back to full power mode in time, it won't be able to configure it
-correctly. The driver tries to detect this condition and bring
-the adapter back to the D0 (full power) state, but this may not be
-enough to return the driver to a fully operational condition. If
-you see this message at boot time and the driver fails to attach
-the device as a network interface, you will have to perform second
-warm boot to have the device properly configured.
-.Pp
-Note that this condition only occurs when warm booting from another
-operating system. If you power down your system prior to booting
-.Ox ,
-the card should be configured correctly.
-.El
-.Sh SEE ALSO
-.Xr arp 4 ,
-.Xr netintro 4 ,
-.Xr ifconfig 8
-.Sh HISTORY
-The
-.Nm
-device driver first appeared in
-.Fx 3.0 .
-.Ox
-support first appeared in
-.Ox 2.5 .
-.Sh AUTHOR
-The
-.Nm
-driver was written by
-.An Bill Paul Aq wpaul@ctr.columbia.edu .
-.Sh BUGS
-The internal NWAY support on the 82c168 chips is horribly broken, which
-means that autoselection will not work, except maybe for half-duplex
-10Mbps links. In order to use other modes (e.g. 100Mbps) it will be
-necessary to
-use
-.Xr ifconfig 8
-to set the interface manually. Autoselection for 82c169 boards using
-MII transceivers should work correctly.
diff --git a/sys/arch/alpha/conf/GENERIC b/sys/arch/alpha/conf/GENERIC
index 5d064e76b8f..cf2cc56dbfa 100644
--- a/sys/arch/alpha/conf/GENERIC
+++ b/sys/arch/alpha/conf/GENERIC
@@ -1,4 +1,4 @@
-#	$OpenBSD: GENERIC,v 1.46 2000/01/09 22:00:17 itojun Exp $
+#	$OpenBSD: GENERIC,v 1.47 2000/01/10 13:58:15 jason Exp $
 #	$NetBSD: GENERIC,v 1.31 1996/12/03 17:25:29 cgd Exp $
 #
 # Generic Alpha kernel.  Enough to get booted, etc., but not much more.
@@ -73,7 +73,6 @@ fxp*	at 	pci? dev ? function ?		# EtherExpress 10/100B ethernet
 #en*	at	pci? dev ? function ?		# ENI PCI ATM (untested)
 ep*	at	pci? dev ? function ?		# 3COM 3c59x
 xl*	at	pci? dev ? function ?		# 3COM 3c9xx
-pn*	at	pci? dev ? function ?		# Lite-On PNIC ethernet
 tl*	at	pci? dev ? function ?		# Compaq Thunderlan ethernet
 fpa*	at	pci? dev ? function ?		# DEC DEFPA FDDI cards
 le*	at	pci? dev ? function ?		# PCI LANCE Ethernet (untested)
diff --git a/sys/dev/pci/files.pci b/sys/dev/pci/files.pci
index 6a70880b757..4adbf6698eb 100644
--- a/sys/dev/pci/files.pci
+++ b/sys/dev/pci/files.pci
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.pci,v 1.61 2000/01/09 23:59:57 jason Exp $
+#	$OpenBSD: files.pci,v 1.62 2000/01/10 13:58:16 jason Exp $
 #	$NetBSD: files.pci,v 1.20 1996/09/24 17:47:15 christos Exp $
 #
 # Config file and device description for machine-independent PCI code.
@@ -129,10 +129,10 @@ device	rl: ether, ifnet, mii, ifmedia
 attach	rl at pci
 file	dev/pci/if_rl.c			rl
 
-# Lite-On PNIC
-device	pn: ether, ifnet, ifmedia
-attach	pn at pci
-file	dev/pci/if_pn.c			pn
+# Macronix
+device	mx: ether, ifnet, ifmedia
+attach	mx at pci
+file	dev/pci/if_mx.c			mx
 
 # Via Rhine
 device	vr: ether, ifnet, ifmedia
diff --git a/sys/dev/pci/if_pn.c b/sys/dev/pci/if_pn.c
deleted file mode 100644
index 2224dc83969..00000000000
--- a/sys/dev/pci/if_pn.c
+++ /dev/null
@@ -1,2164 +0,0 @@
-/*	$OpenBSD: if_pn.c,v 1.7 1999/09/15 01:17:49 jason Exp $	*/
-
-/*
- * Copyright (c) 1997, 1998
- *	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.
- *
- *	$FreeBSD: if_pn.c,v 1.21 1999/05/28 18:43:10 wpaul Exp $
- */
-
-/*
- * 82c168/82c169 PNIC fast ethernet PCI NIC driver
- *
- * Supports various network adapters based on the Lite-On PNIC
- * PCI network controller chip including the LinkSys LNE100TX.
- *
- * Written by Bill Paul <wpaul@ctr.columbia.edu>
- * Electrical Engineering Department
- * Columbia University, New York City
- */
-
-/*
- * The PNIC chip is a DEC tulip clone. This driver uses much of the
- * same code from the driver for the Winbond chip (which is also a
- * tulip clone) except for the MII, EEPROM and filter programming.
- *
- * Technically we could merge support for this chip into the 'de'
- * driver, but it's such a mess that I'm afraid to go near it.
- *
- * The PNIC appears to support both an external MII and an internal
- * transceiver. I think most 100Mbps implementations use a PHY attached
- * the the MII. The LinkSys board that I have uses a Myson MTD972
- * 100BaseTX PHY.
- */
-
-#include "bpfilter.h"
-
-#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/socket.h>
-
-#include <vm/vm.h>		/* for vtophys */
-#include <vm/pmap.h>		/* for vtophys */
-#include <sys/device.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/if_types.h>
-#include <net/if_media.h>
-
-#if NBPFILTER > 0
-#include <net/bpf.h>
-#endif
-
-#ifdef INET
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/in_var.h>
-#include <netinet/ip.h>
-#include <netinet/if_ether.h>
-#endif
-
-#include <dev/pci/pcireg.h>
-#include <dev/pci/pcivar.h>
-#include <dev/pci/pcidevs.h>
-
-#define PN_USEIOSPACE
-
-/* #define PN_BACKGROUND_AUTONEG */
-
-#define PN_RX_BUG_WAR
-
-#include <dev/pci/if_pnreg.h>
-
-/*
- * Various supported PHY vendors/types and their names. Note that
- * this driver will work with pretty much any MII-compliant PHY,
- * so failure to positively identify the chip is not a fatal error.
- */
-
-struct pn_type pn_phys[] = {
-	{ TI_PHY_VENDORID, TI_PHY_10BT, "<TI ThunderLAN 10BT (internal)>" },
-	{ TI_PHY_VENDORID, TI_PHY_100VGPMI, "<TI TNETE211 100VG Any-LAN>" },
-	{ NS_PHY_VENDORID, NS_PHY_83840A, "<National Semiconductor DP83840A>"},
-	{ LEVEL1_PHY_VENDORID, LEVEL1_PHY_LXT970, "<Level 1 LXT970>" }, 
-	{ INTEL_PHY_VENDORID, INTEL_PHY_82555, "<Intel 82555>" },
-	{ SEEQ_PHY_VENDORID, SEEQ_PHY_80220, "<SEEQ 80220>" },
-	{ 0, 0, "<MII-compliant physical interface>" }
-};
-
-int pn_probe		__P((struct device *, void *, void *));
-void pn_attach		__P((struct device *, struct device *, void *));
-int pn_intr		__P((void *));
-void pn_shutdown	__P((void *));
-
-int pn_newbuf		__P((struct pn_softc *, struct pn_chain_onefrag *));
-int pn_encap		__P((struct pn_softc *, struct pn_chain *,
-						struct mbuf *));
-
-#ifdef PN_RX_BUG_WAR
-void pn_rx_bug_war	__P((struct pn_softc *, struct pn_chain_onefrag *));
-#endif
-void pn_rxeof		__P((struct pn_softc *));
-void pn_rxeoc		__P((struct pn_softc *));
-void pn_txeof		__P((struct pn_softc *));
-void pn_txeoc		__P((struct pn_softc *));
-void pn_start		__P((struct ifnet *));
-int pn_ioctl		__P((struct ifnet *, u_long, caddr_t));
-void pn_init		__P((void *));
-void pn_stop		__P((struct pn_softc *));
-void pn_watchdog	__P((struct ifnet *));
-int pn_ifmedia_upd	__P((struct ifnet *));
-void pn_ifmedia_sts	__P((struct ifnet *, struct ifmediareq *));
-
-void pn_eeprom_getword	__P((struct pn_softc *, u_int8_t, u_int16_t *));
-void pn_read_eeprom	__P((struct pn_softc *, caddr_t, int, int, int));
-void pn_phy_writereg	__P((struct pn_softc *, u_int16_t, u_int16_t));
-u_int16_t pn_phy_readreg	__P((struct pn_softc *, int));
-
-void pn_autoneg_xmit	__P((struct pn_softc *));
-void pn_autoneg_mii	__P((struct pn_softc *, int, int));
-void pn_setmode_mii	__P((struct pn_softc *, int));
-void pn_getmode_mii	__P((struct pn_softc *));
-void pn_autoneg		__P((struct pn_softc *, int, int));
-void pn_setmode		__P((struct pn_softc *, int));
-void pn_setcfg		__P((struct pn_softc *, u_int32_t));
-u_int32_t pn_calchash	__P((u_int8_t *));
-void pn_setfilt		__P((struct pn_softc *));
-void pn_reset		__P((struct pn_softc *));
-int pn_list_rx_init	__P((struct pn_softc *));
-int pn_list_tx_init	__P((struct pn_softc *));
-
-#define PN_SETBIT(sc, reg, x)				\
-	CSR_WRITE_4(sc, reg,				\
-		CSR_READ_4(sc, reg) | (x))
-
-#define PN_CLRBIT(sc, reg, x)				\
-	CSR_WRITE_4(sc, reg,				\
-		CSR_READ_4(sc, reg) & ~(x))
-
-/*
- * Read a word of data stored in the EEPROM at address 'addr.'
- */
-void pn_eeprom_getword(sc, addr, dest)
-	struct pn_softc		*sc;
-	u_int8_t		addr;
-	u_int16_t		*dest;
-{
-	register int		i;
-	u_int32_t		r;
-
-	CSR_WRITE_4(sc, PN_SIOCTL, PN_EE_READ|addr);
-
-	for (i = 0; i < PN_TIMEOUT; i++) {
-		DELAY(1);
-		r = CSR_READ_4(sc, PN_SIO);
-		if (!(r & PN_SIO_BUSY)) {
-			*dest = (u_int16_t)(r & 0x0000FFFF);
-			return;
-		}
-	}
-
-	return;
-
-}
-
-/*
- * Read a sequence of words from the EEPROM.
- */
-void pn_read_eeprom(sc, dest, off, cnt, swap)
-	struct pn_softc		*sc;
-	caddr_t			dest;
-	int			off;
-	int			cnt;
-	int			swap;
-{
-	int			i;
-	u_int16_t		word = 0, *ptr;
-
-	for (i = 0; i < cnt; i++) {
-		pn_eeprom_getword(sc, off + i, &word);
-		ptr = (u_int16_t *)(dest + (i * 2));
-		if (swap)
-			*ptr = ntohs(word);
-		else
-			*ptr = word;
-	}
-
-	return;
-}
-
-u_int16_t pn_phy_readreg(sc, reg)
-	struct pn_softc		*sc;
-	int			reg;
-{
-	int			i;
-	u_int32_t		rval;
-
-	CSR_WRITE_4(sc, PN_MII,
-		PN_MII_READ | (sc->pn_phy_addr << 23) | (reg << 18));
-
-	for (i = 0; i < PN_TIMEOUT; i++) {
-		DELAY(1);
-		rval = CSR_READ_4(sc, PN_MII);
-		if (!(rval & PN_MII_BUSY)) {
-			if ((u_int16_t)(rval & 0x0000FFFF) == 0xFFFF)
-				return(0);
-			else
-				return((u_int16_t)(rval & 0x0000FFFF));
-		}
-	}
-
-	return(0);
-}
-
-void pn_phy_writereg(sc, reg, data)
-	struct pn_softc		*sc;
-	u_int16_t		reg;
-	u_int16_t		data;
-{
-	int			i;
-
-	CSR_WRITE_4(sc, PN_MII,
-		PN_MII_WRITE | (sc->pn_phy_addr << 23) | (reg << 18) | data);
-
-	for (i = 0; i < PN_TIMEOUT; i++) {
-		if (!(CSR_READ_4(sc, PN_MII) & PN_MII_BUSY))
-			break;
-	}
-
-	return;
-}
-
-#define PN_POLY		0xEDB88320
-#define PN_BITS		9
-
-u_int32_t pn_calchash(addr)
-	u_int8_t		*addr;
-{
-	u_int32_t		idx, bit, data, crc;
-
-	/* Compute CRC for the address value. */
-	crc = 0xFFFFFFFF; /* initial value */
-
-	for (idx = 0; idx < 6; idx++) {
-		for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1)
-			crc = (crc >> 1) ^ (((crc ^ data) & 1) ? PN_POLY : 0);
-	}
-
-	return (crc & ((1 << PN_BITS) - 1));
-}
-
-/*
- * Initiate an autonegotiation session.
- */
-void pn_autoneg_xmit(sc)
-	struct pn_softc		*sc;
-{
-	u_int16_t		phy_sts;
-
-	pn_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET);
-	DELAY(500);
-	while(pn_phy_readreg(sc, PHY_BMCR)
-			& PHY_BMCR_RESET);
-
-	phy_sts = pn_phy_readreg(sc, PHY_BMCR);
-	phy_sts |= PHY_BMCR_AUTONEGENBL|PHY_BMCR_AUTONEGRSTR;
-	pn_phy_writereg(sc, PHY_BMCR, phy_sts);
-
-	return;
-}
-
-/*
- * Invoke autonegotiation on a PHY.
- */
-void pn_autoneg_mii(sc, flag, verbose)
-	struct pn_softc		*sc;
-	int			flag;
-	int			verbose;
-{
-	u_int16_t		phy_sts = 0, media, advert, ability;
-	struct ifnet		*ifp;
-	struct ifmedia		*ifm;
-
-	ifm = &sc->ifmedia;
-	ifp = &sc->arpcom.ac_if;
-
-	ifm->ifm_media = IFM_ETHER | IFM_AUTO;
-
-	/*
-	 * The 100baseT4 PHY on the 3c905-T4 has the 'autoneg supported'
-	 * bit cleared in the status register, but has the 'autoneg enabled'
-	 * bit set in the control register. This is a contradiction, and
-	 * I'm not sure how to handle it. If you want to force an attempt
-	 * to autoneg for 100baseT4 PHYs, #define FORCE_AUTONEG_TFOUR
-	 * and see what happens.
-	 */
-#ifndef FORCE_AUTONEG_TFOUR
-	/*
-	 * First, see if autoneg is supported. If not, there's
-	 * no point in continuing.
-	 */
-	phy_sts = pn_phy_readreg(sc, PHY_BMSR);
-	if (!(phy_sts & PHY_BMSR_CANAUTONEG)) {
-		if (verbose)
-			printf("pn%d: autonegotiation not supported\n",
-							sc->pn_unit);
-		ifm->ifm_media = IFM_ETHER|IFM_10_T|IFM_HDX;	
-		return;
-	}
-#endif
-
-	switch (flag) {
-	case PN_FLAG_FORCEDELAY:
-		/*
-	 	 * XXX Never use this option anywhere but in the probe
-	 	 * routine: making the kernel stop dead in its tracks
- 		 * for three whole seconds after we've gone multi-user
-		 * is really bad manners.
-	 	 */
-		pn_autoneg_xmit(sc);
-		DELAY(5000000);
-		break;
-	case PN_FLAG_SCHEDDELAY:
-		/*
-		 * Wait for the transmitter to go idle before starting
-		 * an autoneg session, otherwise pn_start() may clobber
-	 	 * our timeout, and we don't want to allow transmission
-		 * during an autoneg session since that can screw it up.
-	 	 */
-		if (sc->pn_cdata.pn_tx_head != NULL) {
-			sc->pn_want_auto = 1;
-			return;
-		}
-		pn_autoneg_xmit(sc);
-		ifp->if_timer = 5;
-		sc->pn_autoneg = 1;
-		sc->pn_want_auto = 0;
-		return;
-		break;
-	case PN_FLAG_DELAYTIMEO:
-		ifp->if_timer = 0;
-		sc->pn_autoneg = 0;
-		break;
-	default:
-		printf("pn%d: invalid autoneg flag: %d\n", sc->pn_unit, flag);
-		return;
-	}
-
-	if (pn_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_AUTONEGCOMP) {
-		if (verbose)
-			printf("pn%d: autoneg complete, ", sc->pn_unit);
-		phy_sts = pn_phy_readreg(sc, PHY_BMSR);
-	} else {
-		if (verbose)
-			printf("pn%d: autoneg not complete, ", sc->pn_unit);
-	}
-
-	media = pn_phy_readreg(sc, PHY_BMCR);
-
-	/* Link is good. Report modes and set duplex mode. */
-	if (pn_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT) {
-		if (verbose)
-			printf("link status good ");
-		advert = pn_phy_readreg(sc, PHY_ANAR);
-		ability = pn_phy_readreg(sc, PHY_LPAR);
-
-		if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) {
-			ifm->ifm_media = IFM_ETHER|IFM_100_T4;
-			media |= PHY_BMCR_SPEEDSEL;
-			media &= ~PHY_BMCR_DUPLEX;
-			printf("(100baseT4)\n");
-		} else if (advert & PHY_ANAR_100BTXFULL &&
-			ability & PHY_ANAR_100BTXFULL) {
-			ifm->ifm_media = IFM_ETHER|IFM_100_TX|IFM_FDX;
-			media |= PHY_BMCR_SPEEDSEL;
-			media |= PHY_BMCR_DUPLEX;
-			printf("(full-duplex, 100Mbps)\n");
-		} else if (advert & PHY_ANAR_100BTXHALF &&
-			ability & PHY_ANAR_100BTXHALF) {
-			ifm->ifm_media = IFM_ETHER|IFM_100_TX|IFM_HDX;
-			media |= PHY_BMCR_SPEEDSEL;
-			media &= ~PHY_BMCR_DUPLEX;
-			printf("(half-duplex, 100Mbps)\n");
-		} else if (advert & PHY_ANAR_10BTFULL &&
-			ability & PHY_ANAR_10BTFULL) {
-			ifm->ifm_media = IFM_ETHER|IFM_10_T|IFM_FDX;
-			media &= ~PHY_BMCR_SPEEDSEL;
-			media |= PHY_BMCR_DUPLEX;
-			printf("(full-duplex, 10Mbps)\n");
-		} else if (advert & PHY_ANAR_10BTHALF &&
-			ability & PHY_ANAR_10BTHALF) {
-			ifm->ifm_media = IFM_ETHER|IFM_10_T|IFM_HDX;
-			media &= ~PHY_BMCR_SPEEDSEL;
-			media &= ~PHY_BMCR_DUPLEX;
-			printf("(half-duplex, 10Mbps)\n");
-		}
-
-		media &= ~PHY_BMCR_AUTONEGENBL;
-
-		/* Set ASIC's duplex mode to match the PHY. */
-		pn_setcfg(sc, ifm->ifm_media);
-		pn_phy_writereg(sc, PHY_BMCR, media);
-	} else {
-		if (verbose)
-			printf("no carrier\n");
-	}
-
-	pn_init(sc);
-
-	if (sc->pn_tx_pend) {
-		sc->pn_autoneg = 0;
-		sc->pn_tx_pend = 0;
-		pn_start(ifp);
-	}
-
-	return;
-}
-
-void pn_getmode_mii(sc)
-	struct pn_softc		*sc;
-{
-	u_int16_t		bmsr;
-	struct ifnet		*ifp;
-
-	ifp = &sc->arpcom.ac_if;
-
-	bmsr = pn_phy_readreg(sc, PHY_BMSR);
-
-	/* fallback */
-	sc->ifmedia.ifm_media = IFM_ETHER|IFM_10_T|IFM_HDX;
-
-	if (bmsr & PHY_BMSR_10BTHALF) {
-		ifmedia_add(&sc->ifmedia,
-			IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
-	}
-
-	if (bmsr & PHY_BMSR_10BTFULL) {
-		ifmedia_add(&sc->ifmedia,
-			IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
-		sc->ifmedia.ifm_media = IFM_ETHER|IFM_10_T|IFM_FDX;
-	}
-
-	if (bmsr & PHY_BMSR_100BTXHALF) {
-		ifp->if_baudrate = 100000000;
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
-		ifmedia_add(&sc->ifmedia,
-			IFM_ETHER|IFM_100_TX|IFM_HDX, 0, NULL);
-		sc->ifmedia.ifm_media = IFM_ETHER|IFM_100_TX|IFM_HDX;
-	}
-
-	if (bmsr & PHY_BMSR_100BTXFULL) {
-		ifp->if_baudrate = 100000000;
-		ifmedia_add(&sc->ifmedia,
-			IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
-		sc->ifmedia.ifm_media = IFM_ETHER|IFM_100_TX|IFM_FDX;
-	}
-
-	/* Some also support 100BaseT4. */
-	if (bmsr & PHY_BMSR_100BT4) {
-		ifp->if_baudrate = 100000000;
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_T4, 0, NULL);
-		sc->ifmedia.ifm_media = IFM_ETHER|IFM_100_T4;
-#ifdef FORCE_AUTONEG_TFOUR
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0 NULL):
-		sc->ifmedia.ifm_media = IFM_ETHER|IFM_AUTO;
-#endif
-	}
-
-	if (bmsr & PHY_BMSR_CANAUTONEG) {
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
-		sc->ifmedia.ifm_media = IFM_ETHER|IFM_AUTO;
-	}
-
-	return;
-}
-
-void pn_autoneg(sc, flag, verbose)
-        struct pn_softc		*sc;
-	int			flag;
-	int			verbose;
-{
-	u_int32_t		nway = 0, ability;
-	struct ifnet		*ifp;
-	struct ifmedia		*ifm;
-
-	ifm = &sc->ifmedia;
-	ifp = &sc->arpcom.ac_if;
-
-	ifm->ifm_media = IFM_ETHER | IFM_AUTO;
-
-	switch (flag) {
-	case PN_FLAG_FORCEDELAY:
-		/*
-		 * XXX Never use this option anywhere but in the probe
-		 * routine: making the kernel stop dead in its tracks
-		 * for three whole seconds after we've gone multi-user
-		 * is really bad manners.
-		 */
-		CSR_WRITE_4(sc, PN_GEN,
-		    PN_GEN_MUSTBEONE|PN_GEN_100TX_LOOP);
-		PN_CLRBIT(sc, PN_NWAY, PN_NWAY_AUTONEGRSTR);
-		PN_SETBIT(sc, PN_NWAY, PN_NWAY_AUTOENB);
-		DELAY(5000000);
-		break;
-	case PN_FLAG_SCHEDDELAY:
-		/*
-		 * Wait for the transmitter to go idle before starting
-		 * an autoneg session, otherwise pn_start() may clobber
-		 * our timeout, and we don't want to allow transmission
-		 * during an autoneg session since that can screw it up.
-		 */
-		if (sc->pn_cdata.pn_tx_head != NULL) {
-			sc->pn_want_auto = 1;
-			return;
-		}
-		CSR_WRITE_4(sc, PN_GEN,
-		    PN_GEN_MUSTBEONE|PN_GEN_100TX_LOOP);
-		PN_CLRBIT(sc, PN_NWAY, PN_NWAY_AUTONEGRSTR);
-		PN_SETBIT(sc, PN_NWAY, PN_NWAY_AUTOENB);
-		ifp->if_timer = 5;
-		sc->pn_autoneg = 1;
-		sc->pn_want_auto = 0;
-		return;
-		break;
-	case PN_FLAG_DELAYTIMEO:
-		ifp->if_timer = 0;
-		sc->pn_autoneg = 0;
-		break;
-	default:
-		printf("pn%d: invalid autoneg flag: %d\n", sc->pn_unit, flag);
-		return;
-	}
-
-	if (CSR_READ_4(sc, PN_NWAY) & PN_NWAY_LPAR) {
-		if (verbose)
-			printf("pn%d: autoneg complete, ", sc->pn_unit);
-	} else {
-		if (verbose)
-			printf("pn%d: autoneg not complete, ", sc->pn_unit);
-	}
-
-	/* Link is good. Report the modes and set the duplex mode. */
-	if (CSR_READ_4(sc, PN_ISR) & PN_ISR_LINKPASS) {
-		if (verbose)
-			printf("link status good.");
-
-		ability = CSR_READ_4(sc, PN_NWAY);
-		if (ability & PN_NWAY_LPAR100T4) {
-			ifm->ifm_media = IFM_ETHER|IFM_100_T4;
-			nway = PN_NWAY_MODE_100T4;
-			printf("(100baseT4)\n");
-		} else if (ability & PN_NWAY_LPAR100FULL) {
-			ifm->ifm_media = IFM_ETHER|IFM_100_TX|IFM_FDX;
-			nway = PN_NWAY_MODE_100FD;
-			printf("(full-duplex, 100Mbps)\n");
-		} else if (ability & PN_NWAY_LPAR100HALF) {
-			ifm->ifm_media = IFM_ETHER|IFM_100_TX|IFM_HDX;
-			nway = PN_NWAY_MODE_100HD;
-			printf("(half-duplex, 100Mbps)\n");
-		} else if (ability & PN_NWAY_LPAR10FULL) {
-			ifm->ifm_media = IFM_ETHER|IFM_10_T|IFM_FDX;
-			nway = PN_NWAY_MODE_10FD;
-			printf("(full-duplex, 10Mbps)\n");
-		} else if (ability & PN_NWAY_LPAR10HALF) {
-			ifm->ifm_media = IFM_ETHER|IFM_10_T|IFM_HDX;
-			nway = PN_NWAY_MODE_10HD;
-			printf("(half-duplex, 10Mbps)\n");
-		}
-
-		/* Set ASIC's duplex mode to match the PHY. */
-		pn_setcfg(sc, ifm->ifm_media);
-		CSR_WRITE_4(sc, PN_NWAY, nway);
-	} else {
-		if (verbose)
-			printf("no carrier\n");
-	}
-
-	pn_init(sc);
-
-	if (sc->pn_tx_pend) {
-		sc->pn_autoneg = 0;
-		sc->pn_tx_pend = 0;
-		pn_start(ifp);
-	}
-
-	return;
-}
-
-void pn_setmode(sc, media)
-        struct pn_softc		*sc;
-	int			media;
-{
-	struct ifnet		*ifp;
-
-	ifp = &sc->arpcom.ac_if;
-
-	/*
-	 * If an autoneg session is in progress, stop it.
-	 */
-	if (sc->pn_autoneg) {
-		printf("pn%d: canceling autoneg session\n", sc->pn_unit);
-		ifp->if_timer = sc->pn_autoneg = sc->pn_want_auto = 0;
-		PN_CLRBIT(sc, PN_NWAY, PN_NWAY_AUTONEGRSTR);
-	}
-
-	printf("pn%d: selecting NWAY, ", sc->pn_unit);
-
-	if (IFM_SUBTYPE(media) == IFM_100_T4) {
-		printf("100Mbps/T4, half-duplex\n");
-	}
-
-	if (IFM_SUBTYPE(media) == IFM_100_TX) {
-		printf("100Mbps, ");
-	}
-
-	if (IFM_SUBTYPE(media) == IFM_10_T) {
-		printf("10Mbps, ");
-	}
-
-	if ((media & IFM_GMASK) == IFM_FDX) {
-		printf("full duplex\n");
-	} else {
-		printf("half duplex\n");
-	}
-
-	pn_setcfg(sc, media);
-
-	return;
-}
-
-void pn_setmode_mii(sc, media)
-	struct pn_softc		*sc;
-	int			media;
-{
-	u_int16_t		bmcr;
-	struct ifnet		*ifp;
-
-	ifp = &sc->arpcom.ac_if;
-
-	/*
-	 * If an autoneg session is in progress, stop it.
-	 */
-	if (sc->pn_autoneg) {
-		printf("pn%d: canceling autoneg session\n", sc->pn_unit);
-		ifp->if_timer = sc->pn_autoneg = sc->pn_want_auto = 0;
-		bmcr = pn_phy_readreg(sc, PHY_BMCR);
-		bmcr &= ~PHY_BMCR_AUTONEGENBL;
-		pn_phy_writereg(sc, PHY_BMCR, bmcr);
-	}
-
-	printf("pn%d: selecting MII, ", sc->pn_unit);
-
-	bmcr = pn_phy_readreg(sc, PHY_BMCR);
-
-	bmcr &= ~(PHY_BMCR_AUTONEGENBL|PHY_BMCR_SPEEDSEL|
-			PHY_BMCR_DUPLEX|PHY_BMCR_LOOPBK);
-
-	if (IFM_SUBTYPE(media) == IFM_100_T4) {
-		printf("100Mbps/T4, half-duplex\n");
-		bmcr |= PHY_BMCR_SPEEDSEL;
-		bmcr &= ~PHY_BMCR_DUPLEX;
-	}
-
-	if (IFM_SUBTYPE(media) == IFM_100_TX) {
-		printf("100Mbps, ");
-		bmcr |= PHY_BMCR_SPEEDSEL;
-	}
-
-	if (IFM_SUBTYPE(media) == IFM_10_T) {
-		printf("10Mbps, ");
-		bmcr &= ~PHY_BMCR_SPEEDSEL;
-	}
-
-	if ((media & IFM_GMASK) == IFM_FDX) {
-		printf("full duplex\n");
-		bmcr |= PHY_BMCR_DUPLEX;
-	} else {
-		printf("half duplex\n");
-		bmcr &= ~PHY_BMCR_DUPLEX;
-	}
-
-	pn_setcfg(sc, media);
-	pn_phy_writereg(sc, PHY_BMCR, bmcr);
-
-	return;
-}
-
-/*
- * Programming the receiver filter on the tulip/PNIC is gross. You
- * have to construct a special setup frame and download it to the
- * chip via the transmit DMA engine. This routine is also somewhat
- * gross, as the setup frame is sent synchronously rather than putting
- * on the transmit queue. The transmitter has to be stopped, then we
- * can download the frame and wait for the 'owned' bit to clear.
- *
- * We always program the chip using 'hash perfect' mode, i.e. one perfect
- * address (our node address) and a 512-bit hash filter for multicast
- * frames. We also sneak the broadcast address into the hash filter since
- * we need that too.
- */
-void pn_setfilt(sc)
-	struct pn_softc		*sc;
-{
-	struct pn_desc		*sframe;
-	u_int32_t		h, *sp;
-	struct arpcom *ac = &sc->arpcom;
-	struct ether_multi *enm;
-	struct ether_multistep step;
-	struct ifnet		*ifp;
-	int			i;
-
-	ifp = &sc->arpcom.ac_if;
-
-	PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_TX_ON);
-	PN_SETBIT(sc, PN_ISR, PN_ISR_TX_IDLE);
-
-	sframe = &sc->pn_cdata.pn_sframe;
-	sp = (u_int32_t *)&sc->pn_cdata.pn_sbuf;
-	bzero((char *)sp, PN_SFRAME_LEN);
-
-	sframe->pn_status = PN_TXSTAT_OWN;
-	sframe->pn_next = vtophys(&sc->pn_ldata->pn_tx_list[0]);
-	sframe->pn_data = vtophys(&sc->pn_cdata.pn_sbuf);
-	sframe->pn_ctl = PN_SFRAME_LEN | PN_TXCTL_TLINK |
-			PN_TXCTL_SETUP | PN_FILTER_HASHPERF;
-
-	/* If we want promiscuous mode, set the allframes bit. */
-	if (ifp->if_flags & IFF_PROMISC)
-		PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_RX_PROMISC);
-	else
-		PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_RX_PROMISC);
-
-	if (ifp->if_flags & IFF_ALLMULTI)
-		PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_RX_ALLMULTI);
-
-	ETHER_FIRST_MULTI(step, ac, enm);
-	while (enm != NULL) {
-		h = pn_calchash(enm->enm_addrlo);
-		sp[h >> 4] |= 1 << (h & 0xf);
-		ETHER_NEXT_MULTI(step, enm);
-	}
-
-	if (ifp->if_flags & IFF_BROADCAST) {
-		h = pn_calchash(etherbroadcastaddr);
-		sp[h >> 4] |= 1 << (h & 0xF);
-	}
-
-	sp[39] = ((u_int16_t *)sc->arpcom.ac_enaddr)[0];
-	sp[40] = ((u_int16_t *)sc->arpcom.ac_enaddr)[1];
-	sp[41] = ((u_int16_t *)sc->arpcom.ac_enaddr)[2];
-
-	CSR_WRITE_4(sc, PN_TXADDR, vtophys(sframe));
-	PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_TX_ON);
-	CSR_WRITE_4(sc, PN_TXSTART, 0xFFFFFFFF);
-
-	/*
-	 * Wait for chip to clear the 'own' bit.
-	 */
-	for (i = 0; i < PN_TIMEOUT; i++) {
-		DELAY(10);
-		if (sframe->pn_status != PN_TXSTAT_OWN)
-			break;
-	}
-
-	if (i == PN_TIMEOUT)
-		printf("pn%d: failed to send setup frame\n", sc->pn_unit);
-
-	PN_SETBIT(sc, PN_ISR, PN_ISR_TX_NOBUF|PN_ISR_TX_IDLE);
-
-	return;
-}
-
-/*
- * In order to fiddle with the
- * 'full-duplex' and '100Mbps' bits in the netconfig register, we
- * first have to put the transmit and/or receive logic in the idle state.
- */
-void pn_setcfg(sc, media)
-	struct pn_softc		*sc;
-	u_int32_t		media;
-{
-	int			i, restart = 0;
-
-	if (CSR_READ_4(sc, PN_NETCFG) & (PN_NETCFG_TX_ON|PN_NETCFG_RX_ON)) {
-		restart = 1;
-		PN_CLRBIT(sc, PN_NETCFG, (PN_NETCFG_TX_ON|PN_NETCFG_RX_ON));
-
-		for (i = 0; i < PN_TIMEOUT; i++) {
-			DELAY(10);
-			if ((CSR_READ_4(sc, PN_ISR) & PN_ISR_TX_IDLE) &&
-				(CSR_READ_4(sc, PN_ISR) & PN_ISR_RX_IDLE))
-				break;
-		}
-
-		if (i == PN_TIMEOUT)
-			printf("pn%d: failed to force tx and "
-				"rx to idle state\n", sc->pn_unit);
-
-	}
-
-	if (IFM_SUBTYPE(media) == IFM_100_TX) {
-		PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_SPEEDSEL);
-		if (sc->pn_pinfo == NULL) {
-			CSR_WRITE_4(sc, PN_GEN, PN_GEN_MUSTBEONE|
-			    PN_GEN_SPEEDSEL|PN_GEN_100TX_LOOP);
-			PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_PCS|
-			    PN_NETCFG_SCRAMBLER|PN_NETCFG_MIIENB);
-			PN_SETBIT(sc, PN_NWAY, PN_NWAY_SPEEDSEL);
-		}
-	} else {
-		PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_SPEEDSEL);
-		if (sc->pn_pinfo == NULL) {
-			CSR_WRITE_4(sc, PN_GEN,
-			    PN_GEN_MUSTBEONE|PN_GEN_100TX_LOOP);
-			PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_PCS|
-			    PN_NETCFG_SCRAMBLER|PN_NETCFG_MIIENB);
-			PN_CLRBIT(sc, PN_NWAY, PN_NWAY_SPEEDSEL);
-		}
-	}
-
-	if ((media & IFM_GMASK) == IFM_FDX) {
-		PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_FULLDUPLEX);
-		if (sc->pn_pinfo == NULL)
-			PN_SETBIT(sc, PN_NWAY, PN_NWAY_DUPLEX);
-	} else {
-		PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_FULLDUPLEX);
-		if (sc->pn_pinfo == NULL)
-			PN_CLRBIT(sc, PN_NWAY, PN_NWAY_DUPLEX);
-	}
-
-	if (restart)
-		PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_TX_ON|PN_NETCFG_RX_ON);
-
-	return;
-}
-
-void pn_reset(sc)
-	struct pn_softc		*sc;
-{
-	register int		i;
-
-	PN_SETBIT(sc, PN_BUSCTL, PN_BUSCTL_RESET);
-
-	for (i = 0; i < PN_TIMEOUT; i++) {
-		DELAY(10);
-		if (!(CSR_READ_4(sc, PN_BUSCTL) & PN_BUSCTL_RESET))
-			break;
-	}
-	if (i == PN_TIMEOUT)
-		printf("pn%d: reset never completed!\n", sc->pn_unit);
-
-	/* Wait a little while for the chip to get its brains in order. */
-	DELAY(1000);
-	return;
-}
-
-/*
- * Initialize the transmit descriptors.
- */
-int pn_list_tx_init(sc)
-	struct pn_softc		*sc;
-{
-	struct pn_chain_data	*cd;
-	struct pn_list_data	*ld;
-	int			i;
-
-	cd = &sc->pn_cdata;
-	ld = sc->pn_ldata;
-	for (i = 0; i < PN_TX_LIST_CNT; i++) {
-		cd->pn_tx_chain[i].pn_ptr = &ld->pn_tx_list[i];
-		if (i == (PN_TX_LIST_CNT - 1))
-			cd->pn_tx_chain[i].pn_nextdesc =
-				&cd->pn_tx_chain[0];
-		else
-			cd->pn_tx_chain[i].pn_nextdesc =
-				&cd->pn_tx_chain[i + 1];
-	}
-
-	cd->pn_tx_free = &cd->pn_tx_chain[0];
-	cd->pn_tx_tail = cd->pn_tx_head = NULL;
-
-	return(0);
-}
-
-
-/*
- * Initialize the RX descriptors and allocate mbufs for them. Note that
- * we arrange the descriptors in a closed ring, so that the last descriptor
- * points back to the first.
- */
-int pn_list_rx_init(sc)
-	struct pn_softc		*sc;
-{
-	struct pn_chain_data	*cd;
-	struct pn_list_data	*ld;
-	int			i;
-
-	cd = &sc->pn_cdata;
-	ld = sc->pn_ldata;
-
-	for (i = 0; i < PN_RX_LIST_CNT; i++) {
-		cd->pn_rx_chain[i].pn_ptr =
-			(struct pn_desc *)&ld->pn_rx_list[i];
-		if (pn_newbuf(sc, &cd->pn_rx_chain[i]) == ENOBUFS)
-			return(ENOBUFS);
-		if (i == (PN_RX_LIST_CNT - 1)) {
-			cd->pn_rx_chain[i].pn_nextdesc = &cd->pn_rx_chain[0];
-			ld->pn_rx_list[i].pn_next =
-					vtophys(&ld->pn_rx_list[0]);
-		} else {
-			cd->pn_rx_chain[i].pn_nextdesc = &cd->pn_rx_chain[i + 1];
-			ld->pn_rx_list[i].pn_next =
-					vtophys(&ld->pn_rx_list[i + 1]);
-		}
-	}
-
-	cd->pn_rx_head = &cd->pn_rx_chain[0];
-
-	return(0);
-}
-
-/*
- * Initialize an RX descriptor and attach an MBUF cluster.
- * Note: the length fields are only 11 bits wide, which means the
- * largest size we can specify is 2047. This is important because
- * MCLBYTES is 2048, so we have to subtract one otherwise we'll
- * overflow the field and make a mess.
- */
-int pn_newbuf(sc, c)
-	struct pn_softc		*sc;
-	struct pn_chain_onefrag	*c;
-{
-	struct mbuf		*m_new = NULL;
-
-	MGETHDR(m_new, M_DONTWAIT, MT_DATA);
-	if (m_new == NULL) {
-		printf("pn%d: no memory for rx list -- packet dropped!\n",
-								sc->pn_unit);
-		return(ENOBUFS);
-	}
-
-	MCLGET(m_new, M_DONTWAIT);
-	if (!(m_new->m_flags & M_EXT)) {
-		printf("pn%d: no memory for rx list -- packet dropped!\n",
-								sc->pn_unit);
-		m_freem(m_new);
-		return(ENOBUFS);
-	}
-
-	/*
-	 * Zero the buffer. This is part of the workaround for the
-	 * promiscuous mode bug in the revision 33 PNIC chips.
-	 */
-	bzero((char *)mtod(m_new, char *), MCLBYTES);
-	m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
-
-	c->pn_mbuf = m_new;
-	c->pn_ptr->pn_status = PN_RXSTAT;
-	c->pn_ptr->pn_data = vtophys(mtod(m_new, caddr_t));
-	c->pn_ptr->pn_ctl = PN_RXCTL_RLINK | PN_RXLEN;
-
-	return(0);
-}
-
-#ifdef PN_RX_BUG_WAR
-/*
- * Grrrrr.
- * The PNIC chip has a terrible bug in it that manifests itself during
- * periods of heavy activity. The exact mode of failure if difficult to
- * pinpoint: sometimes it only happens in promiscuous mode, sometimes it
- * will happen on slow machines. The bug is that sometimes instead of
- * uploading one complete frame during reception, it uploads what looks
- * like the entire contents of its FIFO memory. The frame we want is at
- * the end of the whole mess, but we never know exactly how much data has
- * been uploaded, so salvaging the frame is hard.
- *
- * There is only one way to do it reliably, and it's disgusting.
- * Here's what we know:
- *
- * - We know there will always be somewhere between one and three extra
- *   descriptors uploaded.
- *
- * - We know the desired received frame will always be at the end of the
- *   total data upload.
- *
- * - We know the size of the desired received frame because it will be
- *   provided in the length field of the status word in the last descriptor.
- *
- * Here's what we do:
- *
- * - When we allocate buffers for the receive ring, we bzero() them.
- *   This means that we know that the buffer contents should be all
- *   zeros, except for data uploaded by the chip.
- *
- * - We also force the PNIC chip to upload frames that include the
- *   ethernet CRC at the end.
- *
- * - We gather all of the bogus frame data into a single buffer.
- *
- * - We then position a pointer at the end of this buffer and scan
- *   backwards until we encounter the first non-zero byte of data.
- *   This is the end of the received frame. We know we will encounter
- *   some data at the end of the frame because the CRC will always be
- *   there, so even if the sender transmits a packet of all zeros,
- *   we won't be fooled.
- *
- * - We know the size of the actual received frame, so we subtract
- *   that value from the current pointer location. This brings us
- *   to the start of the actual received packet.
- *
- * - We copy this into an mbuf and pass it on, along with the actual
- *   frame length.
- *
- * The performance hit is tremendous, but it beats dropping frames all
- * the time.
- */
-
-#define PN_WHOLEFRAME	(PN_RXSTAT_FIRSTFRAG|PN_RXSTAT_LASTFRAG)
-void pn_rx_bug_war(sc, cur_rx)
-	struct pn_softc		*sc;
-	struct pn_chain_onefrag	*cur_rx;
-{
-	struct pn_chain_onefrag	*c;
-	unsigned char		*ptr;
-	int			total_len;
-	u_int32_t		rxstat = 0;
-
-	c = sc->pn_rx_bug_save;
-	ptr = sc->pn_rx_buf;
-	bzero(ptr, sizeof(PN_RXLEN * 5));
-
-	/* Copy all the bytes from the bogus buffers. */
-	while ((c->pn_ptr->pn_status & PN_WHOLEFRAME) != PN_WHOLEFRAME) {
-		rxstat = c->pn_ptr->pn_status;
-		m_copydata(c->pn_mbuf, 0, PN_RXLEN, ptr);
-		ptr += PN_RXLEN - 2; /* round down to 32-bit boundary */
-		if (c == cur_rx)
-			break;
-		if (rxstat & PN_RXSTAT_LASTFRAG)
-			break;
-		c->pn_ptr->pn_status = PN_RXSTAT;
-		c->pn_ptr->pn_ctl = PN_RXCTL_RLINK | PN_RXLEN;
-		bzero((char *)mtod(c->pn_mbuf, char *), MCLBYTES);
-		c = c->pn_nextdesc;
-	}
-
-	/* Find the length of the actual receive frame. */
-	total_len = PN_RXBYTES(rxstat);
-
-	/* Scan backwards until we hit a non-zero byte. */
-	while(*ptr == 0x00)
-		ptr--;
-
-	/* Round off. */
-#if defined(__i386__)
-	if ((u_int32_t)(ptr) & 0x3)
-		ptr -= 1;
-#elif defined(__alpha__)
-	if ((u_int64_t)(ptr) & 0x3)
-		ptr -= 1;
-#else
-# error "unsupported architecture"
-#endif
-
-	/* Now find the start of the frame. */
-	ptr -= total_len;
-	if (ptr < sc->pn_rx_buf)
-		ptr = sc->pn_rx_buf;
-
-	/*
-	 * Now copy the salvaged frame to the last mbuf and fake up
-	 * the status word to make it look like a successful
- 	 * frame reception.
-	 */
-	m_copyback(cur_rx->pn_mbuf, 0, total_len, ptr);
-	cur_rx->pn_mbuf->m_len = c->pn_mbuf->m_pkthdr.len = MCLBYTES;
-	cur_rx->pn_ptr->pn_status |= PN_RXSTAT_FIRSTFRAG;
-
-	return;
-}
-#endif
-
-/*
- * A frame has been uploaded: pass the resulting mbuf chain up to
- * the higher level protocols.
- */
-void pn_rxeof(sc)
-	struct pn_softc		*sc;
-{
-	struct ether_header	*eh;
-	struct mbuf		*m;
-	struct ifnet		*ifp;
-	struct pn_chain_onefrag	*cur_rx;
-	int			total_len = 0;
-	u_int32_t		rxstat;
-
-	ifp = &sc->arpcom.ac_if;
-
-	while(!((rxstat = sc->pn_cdata.pn_rx_head->pn_ptr->pn_status) &
-							PN_RXSTAT_OWN)) {
-#ifdef __alpha__
-		struct mbuf		*m0 = NULL;
-#endif
-
-		cur_rx = sc->pn_cdata.pn_rx_head;
-		sc->pn_cdata.pn_rx_head = cur_rx->pn_nextdesc;
-
-#ifdef PN_RX_BUG_WAR
-		/*
-		 * XXX The PNIC has a nasty receiver bug that manifests
-		 * under certain conditions (sometimes only in promiscuous
-		 * mode, sometimes only on slow machines even when not in
-		 * promiscuous mode). We have to keep an eye out for the
-		 * failure condition and employ a workaround to recover
-		 * any mangled frames.
-		 */
-		if (sc->pn_rx_war) {
-			if ((rxstat & PN_WHOLEFRAME) != PN_WHOLEFRAME) {
-				if (rxstat & PN_RXSTAT_FIRSTFRAG)
-					sc->pn_rx_bug_save = cur_rx;
-				if ((rxstat & PN_RXSTAT_LASTFRAG) == 0)
-					continue;
-				pn_rx_bug_war(sc, cur_rx);
-				rxstat = cur_rx->pn_ptr->pn_status;
-			}
-		}
-#endif
-
-		/*
-		 * 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 & PN_RXSTAT_RXERR) {
-			ifp->if_ierrors++;
-			if (rxstat & PN_RXSTAT_COLLSEEN)
-				ifp->if_collisions++;
-			cur_rx->pn_ptr->pn_status = PN_RXSTAT;
-			cur_rx->pn_ptr->pn_ctl = PN_RXCTL_RLINK | PN_RXLEN;
-			bzero((char *)mtod(cur_rx->pn_mbuf, char *), MCLBYTES);
-			continue;
-		}
-
-		/* No errors; receive the packet. */	
-		m = cur_rx->pn_mbuf;
-		total_len = PN_RXBYTES(cur_rx->pn_ptr->pn_status);
-
-		/* Trim off the CRC. */
-		total_len -= ETHER_CRC_LEN;
-
-		/*
-		 * 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 (pn_newbuf(sc, cur_rx) == ENOBUFS) {
-			ifp->if_ierrors++;
-			cur_rx->pn_ptr->pn_status = PN_RXSTAT;
-			cur_rx->pn_ptr->pn_ctl = PN_RXCTL_RLINK | PN_RXLEN;
-			bzero((char *)mtod(cur_rx->pn_mbuf, char *), MCLBYTES);
-			continue;
-		}
-
-#ifdef __alpha__
-		/*
-		 * Grrrr! On the alpha platform, the start of the
-		 * packet data must be longword aligned so that ip_input()
-		 * doesn't perform any unaligned accesses when it tries
-		 * to fiddle with the IP header. But the PNIC is stupid
-		 * and wants RX buffers to start on longword boundaries.
-		 * So we can't just shift the DMA address over a few
-		 * bytes to alter the payload alignment. Instead, we
-		 * have to chop out ethernet and IP header parts of
-		 * the packet and place then in a separate mbuf with
-		 * the alignment fixed up properly.
-		 *
-		 * As if this chip wasn't broken enough already.
-		 */
-		MGETHDR(m0, M_DONTWAIT, MT_DATA);
-		if (m0 == NULL) {
-			ifp->if_ierrors++;
-			cur_rx->pn_ptr->pn_status = PN_RXSTAT;
-			cur_rx->pn_ptr->pn_ctl = PN_RXCTL_RLINK | PN_RXLEN;
-			bzero((char *)mtod(cur_rx->pn_mbuf, char *), MCLBYTES);
-			continue;
-		}
-
-		m0->m_data += 2;
-		if (total_len <= (MHLEN - 2)) {
-			bcopy(mtod(m, caddr_t), mtod(m0, caddr_t), total_len);
-			m_freem(m);
-			m = m0;
-			m->m_pkthdr.len = m->m_len = total_len;
-		} else {
-			bcopy(mtod(m, caddr_t), mtod(m0, caddr_t), (MHLEN - 2));
-			m->m_len = total_len - (MHLEN - 2);
-			m->m_data += (MHLEN - 2);
-			m0->m_next = m;
-			m0->m_len = (MHLEN - 2);
-			m = m0;
-			m->m_pkthdr.len = total_len;
-		}
-#else
-		m->m_pkthdr.len = m->m_len = total_len;
-#endif
-
-		ifp->if_ipackets++;
-		eh = mtod(m, struct ether_header *);
-		m->m_pkthdr.rcvif = ifp;
-
-#if NBPFILTER > 0
-		/*
-		 * Handle BPF listeners. Let the BPF user see the packet.
-		 */
-		if (ifp->if_bpf)
-			bpf_mtap(ifp->if_bpf, m);
-#endif
-		/* Remove header from mbuf and pass it on. */
-		m_adj(m, sizeof(struct ether_header));
-		ether_input(ifp, eh, m);
-	}
-
-	return;
-}
-
-void pn_rxeoc(sc)
-	struct pn_softc		*sc;
-{
-
-	pn_rxeof(sc);
-	PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_RX_ON);
-	CSR_WRITE_4(sc, PN_RXADDR, vtophys(sc->pn_cdata.pn_rx_head->pn_ptr));
-	PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_RX_ON);
-	CSR_WRITE_4(sc, PN_RXSTART, 0xFFFFFFFF);
-
-	return;
-}
-
-/*
- * A frame was downloaded to the chip. It's safe for us to clean up
- * the list buffers.
- */
-
-void pn_txeof(sc)
-	struct pn_softc		*sc;
-{
-	struct pn_chain		*cur_tx;
-	struct ifnet		*ifp;
-
-	ifp = &sc->arpcom.ac_if;
-
-	/* Clear the timeout timer. */
-	ifp->if_timer = 0;
-
-	if (sc->pn_cdata.pn_tx_head == NULL)
-		return;
-
-	/*
-	 * Go through our tx list and free mbufs for those
-	 * frames that have been transmitted.
-	 */
-	while(sc->pn_cdata.pn_tx_head->pn_mbuf != NULL) {
-		u_int32_t		txstat;
-
-		cur_tx = sc->pn_cdata.pn_tx_head;
-		txstat = PN_TXSTATUS(cur_tx);
-
-		if (txstat & PN_TXSTAT_OWN)
-			break;
-
-		if (txstat & PN_TXSTAT_ERRSUM) {
-			ifp->if_oerrors++;
-			if (txstat & PN_TXSTAT_EXCESSCOLL)
-				ifp->if_collisions++;
-			if (txstat & PN_TXSTAT_LATECOLL)
-				ifp->if_collisions++;
-		}
-
-		ifp->if_collisions += (txstat & PN_TXSTAT_COLLCNT) >> 3;
-
-
-		ifp->if_opackets++;
-		m_freem(cur_tx->pn_mbuf);
-		cur_tx->pn_mbuf = NULL;
-
-		if (sc->pn_cdata.pn_tx_head == sc->pn_cdata.pn_tx_tail) {
-			sc->pn_cdata.pn_tx_head = NULL;
-			sc->pn_cdata.pn_tx_tail = NULL;
-			break;
-		}
-
-		sc->pn_cdata.pn_tx_head = cur_tx->pn_nextdesc;
-	}
-
-	return;
-}
-
-/*
- * TX 'end of channel' interrupt handler.
- */
-void pn_txeoc(sc)
-	struct pn_softc		*sc;
-{
-	struct ifnet		*ifp;
-
-	ifp = &sc->arpcom.ac_if;
-
-	ifp->if_timer = 0;
-
-	if (sc->pn_cdata.pn_tx_head == NULL) {
-		ifp->if_flags &= ~IFF_OACTIVE;
-		sc->pn_cdata.pn_tx_tail = NULL;
-		if (sc->pn_want_auto) {
-			if (sc->pn_pinfo == NULL)
-				pn_autoneg(sc, PN_FLAG_SCHEDDELAY, 1);
-			else
-				pn_autoneg_mii(sc, PN_FLAG_SCHEDDELAY, 1);
-		}
-	}
-
-	return;
-}
-
-int pn_intr(arg)
-	void			*arg;
-{
-	struct pn_softc		*sc;
-	struct ifnet		*ifp;
-	u_int32_t		status;
-	int			claimed = 0;
-
-	sc = arg;
-	ifp = &sc->arpcom.ac_if;
-
-	/* Supress unwanted interrupts. */
-	if (!(ifp->if_flags & IFF_UP)) {
-		pn_stop(sc);
-		return (claimed);
-	}
-
-	/* Disable interrupts. */
-	CSR_WRITE_4(sc, PN_IMR, 0x00000000);
-
-	for (;;) {
-		status = CSR_READ_4(sc, PN_ISR);
-		if (status)
-			CSR_WRITE_4(sc, PN_ISR, status);
-
-		if ((status & PN_INTRS) == 0)
-			break;
-
-		claimed = 1;
-
-		if (status & PN_ISR_RX_OK)
-			pn_rxeof(sc);
-
-		if ((status & PN_ISR_RX_WATCHDOG) || (status & PN_ISR_RX_IDLE)
-					|| (status & PN_ISR_RX_NOBUF))
-			pn_rxeoc(sc);
-
-		if (status & PN_ISR_TX_OK)
-			pn_txeof(sc);
-
- 		if (status & PN_ISR_TX_NOBUF)
-			pn_txeoc(sc);
-
-		if (status & PN_ISR_TX_IDLE) {
-			pn_txeof(sc);
-			if (sc->pn_cdata.pn_tx_head != NULL) {
-				PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_TX_ON);
-				CSR_WRITE_4(sc, PN_TXSTART, 0xFFFFFFFF);
-			}
-		}
-
-		if (status & PN_ISR_TX_UNDERRUN) {
-			ifp->if_oerrors++;
-			pn_txeof(sc);
-			if (sc->pn_cdata.pn_tx_head != NULL) {
-				PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_TX_ON);
-				CSR_WRITE_4(sc, PN_TXSTART, 0xFFFFFFFF);
-			}
-		}
-
-		if (status & PN_ISR_BUS_ERR) {
-			pn_reset(sc);
-			pn_init(sc);
-		}
-	}
-
-	/* Re-enable interrupts. */
-	CSR_WRITE_4(sc, PN_IMR, PN_INTRS);
-
-	if (ifp->if_snd.ifq_head != NULL) {
-		pn_start(ifp);
-	}
-
-	return (claimed);
-}
-
-/*
- * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data
- * pointers to the fragment pointers.
- */
-int pn_encap(sc, c, m_head)
-	struct pn_softc		*sc;
-	struct pn_chain		*c;
-	struct mbuf		*m_head;
-{
-	int			frag = 0;
-	struct pn_desc		*f = NULL;
-	int			total_len;
-	struct mbuf		*m;
-
-	/*
- 	 * Start packing the mbufs in this chain into
-	 * the fragment pointers. Stop when we run out
- 	 * of fragments or hit the end of the mbuf chain.
-	 */
-	m = m_head;
-	total_len = 0;
-
-	for (m = m_head, frag = 0; m != NULL; m = m->m_next) {
-		if (m->m_len != 0) {
-			if (frag == PN_MAXFRAGS)
-				break;
-			total_len += m->m_len;
-			f = &c->pn_ptr->pn_frag[frag];
-			f->pn_ctl = PN_TXCTL_TLINK | m->m_len;
-			if (frag == 0) {
-				f->pn_ctl |= PN_TXCTL_FIRSTFRAG;
-				f->pn_status = 0;
-			} else
-				f->pn_status = PN_TXSTAT_OWN;
-			f->pn_data = vtophys(mtod(m, vm_offset_t));
-			f->pn_next = vtophys(&c->pn_ptr->pn_frag[frag + 1]);
-			frag++;
-		}
-	}
-
-	/*
-	 * Handle special case: we used up all 16 fragments,
-	 * but we have more mbufs left in the chain. Copy the
-	 * data into an mbuf cluster. Note that we don't
-	 * bother clearing the values in the other fragment
-	 * pointers/counters; it wouldn't gain us anything,
-	 * and would waste cycles.
-	 */
-	if (m != NULL) {
-		struct mbuf		*m_new = NULL;
-
-		MGETHDR(m_new, M_DONTWAIT, MT_DATA);
-		if (m_new == NULL) {
-			printf("pn%d: no memory for tx list", sc->pn_unit);
-			return(1);
-		}
-		if (m_head->m_pkthdr.len > MHLEN) {
-			MCLGET(m_new, M_DONTWAIT);
-			if (!(m_new->m_flags & M_EXT)) {
-				m_freem(m_new);
-				printf("pn%d: no memory for tx list",
-						sc->pn_unit);
-				return(1);
-			}
-		}
-		m_copydata(m_head, 0, m_head->m_pkthdr.len,	
-					mtod(m_new, caddr_t));
-		m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len;
-		m_freem(m_head);
-		m_head = m_new;
-		f = &c->pn_ptr->pn_frag[0];
-		f->pn_data = vtophys(mtod(m_new, caddr_t));
-		f->pn_ctl = total_len = m_new->m_len;
-		f->pn_ctl |= PN_TXCTL_TLINK|PN_TXCTL_FIRSTFRAG;
-		frag = 1;
-	}
-
-
-	c->pn_mbuf = m_head;
-	c->pn_lastdesc = frag - 1;
-	PN_TXCTL(c) |= PN_TXCTL_LASTFRAG|PN_TXCTL_FINT;
-	PN_TXNEXT(c) = vtophys(&c->pn_nextdesc->pn_ptr->pn_frag[0]);
-
-	return(0);
-}
-
-/*
- * Main transmit routine. To avoid having to do mbuf copies, we put pointers
- * to the mbuf data regions directly in the transmit lists. We also save a
- * copy of the pointers since the transmit list fragment pointers are
- * physical addresses.
- */
-
-void pn_start(ifp)
-	struct ifnet		*ifp;
-{
-	struct pn_softc		*sc;
-	struct mbuf		*m_head = NULL;
-	struct pn_chain		*cur_tx = NULL, *start_tx;
-
-	sc = ifp->if_softc;
-
-	if (sc->pn_autoneg) {
-		sc->pn_tx_pend = 1;
-		return;
-	}
-
-	/*
-	 * Check for an available queue slot. If there are none,
-	 * punt.
-	 */
-	if (sc->pn_cdata.pn_tx_free->pn_mbuf != NULL) {
-		ifp->if_flags |= IFF_OACTIVE;
-		return;
-	}
-
-	start_tx = sc->pn_cdata.pn_tx_free;
-
-	while(sc->pn_cdata.pn_tx_free->pn_mbuf == NULL) {
-		IF_DEQUEUE(&ifp->if_snd, m_head);
-		if (m_head == NULL)
-			break;
-
-		/* Pick a descriptor off the free list. */
-		cur_tx = sc->pn_cdata.pn_tx_free;
-		sc->pn_cdata.pn_tx_free = cur_tx->pn_nextdesc;
-
-		/* Pack the data into the descriptor. */
-		pn_encap(sc, cur_tx, m_head);
-
-		if (cur_tx != start_tx)
-			PN_TXOWN(cur_tx) = PN_TXSTAT_OWN;
-
-#if NBPFILTER > 0
-		/*
-		 * If there's a BPF listener, bounce a copy of this frame
-		 * to him.
-		 */
-		if (ifp->if_bpf)
-			bpf_mtap(ifp->if_bpf, cur_tx->pn_mbuf);
-#endif
-		PN_TXOWN(cur_tx) = PN_TXSTAT_OWN;
-		CSR_WRITE_4(sc, PN_TXSTART, 0xFFFFFFFF);
-	}
-
-	/*
-	 * If there are no packets queued, bail.
-	 */
-	if (cur_tx == NULL)
-		return;
-
-	sc->pn_cdata.pn_tx_tail = cur_tx;
-
-	if (sc->pn_cdata.pn_tx_head == NULL)
-		sc->pn_cdata.pn_tx_head = start_tx;
-
-	/*
-	 * Set a timeout in case the chip goes out to lunch.
-	 */
-	ifp->if_timer = 5;
-
-	return;
-}
-
-void pn_init(xsc)
-	void			*xsc;
-{
-	struct pn_softc		*sc = xsc;
-	struct ifnet		*ifp = &sc->arpcom.ac_if;
-	u_int16_t		phy_bmcr = 0;
-	int			s;
-
-	if (sc->pn_autoneg)
-		return;
-
-	s = splimp();
-
-	if (sc->pn_pinfo != NULL)
-		phy_bmcr = pn_phy_readreg(sc, PHY_BMCR);
-
-	/*
-	 * Cancel pending I/O and free all RX/TX buffers.
-	 */
-	pn_stop(sc);
-	pn_reset(sc);
-
-	/*
-	 * Set cache alignment and burst length.
-	 */
-	CSR_WRITE_4(sc, PN_BUSCTL, PN_BUSCTL_MUSTBEONE|PN_BUSCTL_ARBITRATION);
-	PN_SETBIT(sc, PN_BUSCTL, PN_BURSTLEN_16LONG);
-	switch(sc->pn_cachesize) {
-	case 32:
-		PN_SETBIT(sc, PN_BUSCTL, PN_CACHEALIGN_32LONG);
-		break;
-	case 16:
-		PN_SETBIT(sc, PN_BUSCTL, PN_CACHEALIGN_16LONG);
-		break;
-	case 8:
-		PN_SETBIT(sc, PN_BUSCTL, PN_CACHEALIGN_8LONG);
-		break;
-	case 0:
-	default:
-		PN_SETBIT(sc, PN_BUSCTL, PN_CACHEALIGN_NONE);
-		break;
-	}
-
-	PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_TX_IMMEDIATE);
-	PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_NO_RXCRC);
-	PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_HEARTBEAT);
-	PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_STORENFWD);
-	PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_TX_BACKOFF);
-
-	PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_TX_THRESH);
-	PN_SETBIT(sc, PN_NETCFG, PN_TXTHRESH_72BYTES);
-
-	if (sc->pn_pinfo == NULL) {
-		PN_CLRBIT(sc, PN_NETCFG, PN_NETCFG_MIIENB);
-		PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_TX_BACKOFF);
-	} else {
-		PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_MIIENB);
-		PN_SETBIT(sc, PN_ENDEC, PN_ENDEC_JABBERDIS);
-	}
-
-	pn_setcfg(sc, sc->ifmedia.ifm_media);
-
-	/* Init circular RX list. */
-	if (pn_list_rx_init(sc) == ENOBUFS) {
-		printf("pn%d: initialization failed: no "
-			"memory for rx buffers\n", sc->pn_unit);
-		pn_stop(sc);
-		(void)splx(s);
-		return;
-	}
-
-	/*
-	 * Init tx descriptors.
-	 */
-	pn_list_tx_init(sc);
-
-	/*
-	 * Load the address of the RX list.
-	 */
-	CSR_WRITE_4(sc, PN_RXADDR, vtophys(sc->pn_cdata.pn_rx_head->pn_ptr));
-
-	/*
-	 * Load the RX/multicast filter.
-	 */
-	pn_setfilt(sc);
-
-	/*
-	 * Enable interrupts.
-	 */
-	CSR_WRITE_4(sc, PN_IMR, PN_INTRS);
-	CSR_WRITE_4(sc, PN_ISR, 0xFFFFFFFF);
-
-	/* Enable receiver and transmitter. */
-	PN_SETBIT(sc, PN_NETCFG, PN_NETCFG_TX_ON|PN_NETCFG_RX_ON);
-	CSR_WRITE_4(sc, PN_RXSTART, 0xFFFFFFFF);
-
-	/* Restore state of BMCR */
-	if (sc->pn_pinfo != NULL)
-		pn_phy_writereg(sc, PHY_BMCR, phy_bmcr);
-
-	ifp->if_flags |= IFF_RUNNING;
-	ifp->if_flags &= ~IFF_OACTIVE;
-
-	(void)splx(s);
-
-	return;
-}
-
-/*
- * Set media options.
- */
-int pn_ifmedia_upd(ifp)
-	struct ifnet		*ifp;
-{
-	struct pn_softc		*sc;
-	struct ifmedia		*ifm;
-
-	sc = ifp->if_softc;
-	ifm = &sc->ifmedia;
-
-	if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
-		return(EINVAL);
-
-	if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) {
-		if (sc->pn_pinfo == NULL)
-			pn_autoneg(sc, PN_FLAG_SCHEDDELAY, 1);
-		else
-			pn_autoneg_mii(sc, PN_FLAG_SCHEDDELAY, 1);
-	} else {
-		if (sc->pn_pinfo == NULL)
-			pn_setmode(sc, ifm->ifm_media);
-		else
-			pn_setmode_mii(sc, ifm->ifm_media);
-	}
-
-	return(0);
-}
-
-/*
- * Report current media status.
- */
-void pn_ifmedia_sts(ifp, ifmr)
-	struct ifnet		*ifp;
-	struct ifmediareq	*ifmr;
-{
-	struct pn_softc		*sc;
-	u_int16_t		advert = 0, ability = 0;
-
-	sc = ifp->if_softc;
-
-	ifmr->ifm_active = IFM_ETHER;
-
-	if (sc->pn_pinfo == NULL) {
-		if (CSR_READ_4(sc, PN_NETCFG) & PN_NETCFG_SPEEDSEL)
-			ifmr->ifm_active = IFM_ETHER|IFM_10_T;
-		else
-			ifmr->ifm_active = IFM_ETHER|IFM_100_TX;
-		if (CSR_READ_4(sc, PN_NETCFG) & PN_NETCFG_FULLDUPLEX)
-			ifmr->ifm_active |= IFM_FDX;
-		else
-			ifmr->ifm_active |= IFM_HDX;
-		return;
-	}
-
-	if (!(pn_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_AUTONEGENBL)) {
-		if (pn_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_SPEEDSEL)
-			ifmr->ifm_active = IFM_ETHER|IFM_100_TX;
-		else
-			ifmr->ifm_active = IFM_ETHER|IFM_10_T;
-		if (pn_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_DUPLEX)
-			ifmr->ifm_active |= IFM_FDX;
-		else
-			ifmr->ifm_active |= IFM_HDX;
-		return;
-	}
-
-	ability = pn_phy_readreg(sc, PHY_LPAR);
-	advert = pn_phy_readreg(sc, PHY_ANAR);
-	if (advert & PHY_ANAR_100BT4 &&
-		ability & PHY_ANAR_100BT4) {
-		ifmr->ifm_active = IFM_ETHER|IFM_100_T4;
-	} else if (advert & PHY_ANAR_100BTXFULL &&
-		ability & PHY_ANAR_100BTXFULL) {
-		ifmr->ifm_active = IFM_ETHER|IFM_100_TX|IFM_FDX;
-	} else if (advert & PHY_ANAR_100BTXHALF &&
-		ability & PHY_ANAR_100BTXHALF) {
-		ifmr->ifm_active = IFM_ETHER|IFM_100_TX|IFM_HDX;
-	} else if (advert & PHY_ANAR_10BTFULL &&
-		ability & PHY_ANAR_10BTFULL) {
-		ifmr->ifm_active = IFM_ETHER|IFM_10_T|IFM_FDX;
-	} else if (advert & PHY_ANAR_10BTHALF &&
-		ability & PHY_ANAR_10BTHALF) {
-		ifmr->ifm_active = IFM_ETHER|IFM_10_T|IFM_HDX;
-	}
-
-	return;
-}
-
-int pn_ioctl(ifp, command, data)
-	struct ifnet		*ifp;
-	u_long			command;
-	caddr_t			data;
-{
-	struct pn_softc		*sc = ifp->if_softc;
-	struct ifreq		*ifr = (struct ifreq *) data;
-	int			s, error = 0;
-	struct ifaddr		*ifa = (struct ifaddr *) data;
-
-	s = splimp();
-
-	if ((error = ether_ioctl(ifp, &sc->arpcom, command, data)) > 0) {
-		splx(s);
-		return error;
-	}
-
-	switch(command) {
-	case SIOCSIFADDR:
-		ifp->if_flags |= IFF_UP;
-		switch (ifa->ifa_addr->sa_family) {
-#ifdef INET
-		case AF_INET:
-			pn_init(sc);
-			arp_ifinit(&sc->arpcom, ifa);
-			break;
-#endif /* INET */
-		default:
-			pn_init(sc);
-			break;
-		}
-		break;
-	case SIOCSIFFLAGS:
-		if (ifp->if_flags & IFF_UP) {
-			pn_init(sc);
-		} else {
-			if (ifp->if_flags & IFF_RUNNING)
-				pn_stop(sc);
-		}
-		error = 0;
-		break;
-	case SIOCADDMULTI:
-	case SIOCDELMULTI:
-		pn_init(sc);
-		error = 0;
-		break;
-	case SIOCGIFMEDIA:
-	case SIOCSIFMEDIA:
-		error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command);
-		break;
-	default:
-		error = EINVAL;
-		break;
-	}
-
-	(void)splx(s);
-
-	return(error);
-}
-
-void pn_watchdog(ifp)
-	struct ifnet		*ifp;
-{
-	struct pn_softc		*sc;
-
-	sc = ifp->if_softc;
-
-	if (sc->pn_autoneg) {
-		if (sc->pn_pinfo == NULL)
-			pn_autoneg(sc, PN_FLAG_DELAYTIMEO, 1);
-		else
-			pn_autoneg_mii(sc, PN_FLAG_DELAYTIMEO, 1);
-		return;
-	}
-
-	ifp->if_oerrors++;
-	printf("pn%d: watchdog timeout\n", sc->pn_unit);
-
-	if (!(pn_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT))
-		printf("pn%d: no carrier - transceiver cable problem?\n",
-								sc->pn_unit);
-	pn_stop(sc);
-	pn_reset(sc);
-	pn_init(sc);
-
-	if (ifp->if_snd.ifq_head != NULL)
-		pn_start(ifp);
-
-	return;
-}
-
-/*
- * Stop the adapter and free any mbufs allocated to the
- * RX and TX lists.
- */
-void pn_stop(sc)
-	struct pn_softc		*sc;
-{
-	register int		i;
-	struct ifnet		*ifp;
-
-	ifp = &sc->arpcom.ac_if;
-	ifp->if_timer = 0;
-
-	PN_CLRBIT(sc, PN_NETCFG, (PN_NETCFG_RX_ON|PN_NETCFG_TX_ON));
-	CSR_WRITE_4(sc, PN_IMR, 0x00000000);
-	CSR_WRITE_4(sc, PN_TXADDR, 0x00000000);
-	CSR_WRITE_4(sc, PN_RXADDR, 0x00000000);
-
-	/*
-	 * Free data in the RX lists.
-	 */
-	for (i = 0; i < PN_RX_LIST_CNT; i++) {
-		if (sc->pn_cdata.pn_rx_chain[i].pn_mbuf != NULL) {
-			m_freem(sc->pn_cdata.pn_rx_chain[i].pn_mbuf);
-			sc->pn_cdata.pn_rx_chain[i].pn_mbuf = NULL;
-		}
-	}
-	bzero((char *)&sc->pn_ldata->pn_rx_list,
-		sizeof(sc->pn_ldata->pn_rx_list));
-
-	/*
-	 * Free the TX list buffers.
-	 */
-	for (i = 0; i < PN_TX_LIST_CNT; i++) {
-		if (sc->pn_cdata.pn_tx_chain[i].pn_mbuf != NULL) {
-			m_freem(sc->pn_cdata.pn_tx_chain[i].pn_mbuf);
-			sc->pn_cdata.pn_tx_chain[i].pn_mbuf = NULL;
-		}
-	}
-
-	bzero((char *)&sc->pn_ldata->pn_tx_list,
-		sizeof(sc->pn_ldata->pn_tx_list));
-
-	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
-
-	return;
-}
-
-int
-pn_probe(parent, match, aux)
-	struct device *parent;
-	void *match;
-	void *aux;
-{
-	struct pci_attach_args *pa = (struct pci_attach_args *)aux;
-
-	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_LITEON) {
-		switch (PCI_PRODUCT(pa->pa_id)) {
-		case PCI_PRODUCT_LITEON_PNIC:
-			return (1);
-		}
-	}
-
-	return (0);
-}
-
-void
-pn_attach(parent, self, aux)
-	struct device *parent, *self;
-	void *aux;
-{
-	struct pn_softc *sc = (struct pn_softc *)self;
-	struct pci_attach_args *pa = aux;
-	pci_chipset_tag_t pc = pa->pa_pc;
-	pci_intr_handle_t ih;
-	const char *intrstr = NULL;
-	struct ifnet *ifp = &sc->arpcom.ac_if;
-	bus_addr_t iobase;
-	bus_size_t iosize;
-	u_int32_t command;
-	u_int16_t phy_did, phy_vid, phy_sts;
-	struct pn_type *p = NULL;
-	int s, i, media = IFM_ETHER|IFM_100_TX|IFM_FDX;
-	u_int round;
-	caddr_t roundptr;
-#ifdef PN_RX_BUG_WAR
-	u_int32_t revision = 0;
-#endif
-
-	s = splimp();
-
-	sc->pn_unit = sc->sc_dev.dv_unit;
-	command = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
-
-#ifdef PN_USEIOSPACE
-	if (!(command & PCI_COMMAND_IO_ENABLE)) {
-		printf(": failed to enable i/o ports\n");
-		goto fail;
-	}
-
-	/*
-	 * Map control/status registers.
-	 */
-	if (pci_io_find(pc, pa->pa_tag, PN_PCI_LOIO, &iobase, &iosize)) {
-		printf(": can't find i/o space\n");
-		goto fail;
-	}
-	if (bus_space_map(pa->pa_iot, iobase, iosize, 0, &sc->pn_bhandle)) {
-		printf(": can't map i/o space\n");
-		goto fail;
-	}
-	sc->pn_btag = pa->pa_iot;
-#else
-	if (!(command & PCI_COMMAND_MEM_ENABLE)) {
-		printf(": failed to enable memory mapping\n");
-		goto fail;
-	}
-	if (pci_mem_find(pc, pa->pa_tag, PN_PCI_LOMEM, &iobase, &iosize, NULL)){
-		printf(": can't find mem space\n");
-		goto fail;
-	}
-	if (bus_space_map(pa->pa_memt, iobase, iosize, 0, &sc->pn_bhandle)) {
-		printf(": can't map mem space\n");
-		goto fail;
-	}
-	sc->pn_btag = pa->pa_memt;
-#endif
-
-	/*
-	 * Allocate our interrupt.
-	 */
-	if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
-	    pa->pa_intrline, &ih)) {
-		printf(": couldn't map interrupt\n");
-		goto fail;
-	}
-	intrstr = pci_intr_string(pc, ih);
-	sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, pn_intr, sc,
-	    self->dv_xname);
-	if (sc->sc_ih == NULL) {
-		printf(": couldn't establish interrupt");
-		if (intrstr != NULL)
-			printf(" at %s", intrstr);
-		printf("\n");
-		goto fail;
-	}
-	printf(": %s", intrstr);
-
-	sc->pn_cachesize = pci_conf_read(pa->pa_pc, pa->pa_tag,
-	    PN_PCI_CACHELEN) & 0xFF;
-
-	pn_reset(sc);
-
-	pn_read_eeprom(sc, (caddr_t)&sc->arpcom.ac_enaddr, 0, 3, 1);
-	printf(" address %s\n", ether_sprintf(sc->arpcom.ac_enaddr));
-
-	sc->pn_ldata_ptr = malloc(sizeof(struct pn_list_data) + 8,
-				M_DEVBUF, M_NOWAIT);
-	if (sc->pn_ldata_ptr == NULL) {
-		printf("%s: no memory for list buffers\n", sc->sc_dev.dv_xname);
-		goto fail;
-	}
-	sc->pn_ldata = (struct pn_list_data *)sc->pn_ldata_ptr;
-#if defined(__i386__)
-	round = (u_int32_t)sc->pn_ldata_ptr & 0xf;
-#elif defined(__alpha__)
-	round = (u_int64_t)sc->pn_ldata_ptr & 0xf;
-#endif
-	
-	roundptr = sc->pn_ldata_ptr;
-	for (i = 0; i < 8; i++) {
-		if (round % 8) {
-			round++;
-			roundptr++;
-		}
-		else
-			break;
-	}
-	sc->pn_ldata = (struct pn_list_data *)roundptr;
-	bzero(sc->pn_ldata, sizeof(struct pn_list_data));
-
-	revision = pci_conf_read(pa->pa_pc, pa->pa_tag, PN_PCI_REVISION)
-	    & 0xFF;
-	if (revision == PN_169B_REV || revision == PN_169_REV ||
-	    (revision & 0xF0) == PN_168_REV) {
-		sc->pn_rx_war = 1;
-		sc->pn_rx_buf = malloc(PN_RXLEN * 5, M_DEVBUF, M_NOWAIT);
-		if (sc->pn_rx_buf == NULL) {
-			printf("%s: no memory for workaround buffer\n",
-			    sc->sc_dev.dv_xname);
-			goto fail;
-		}
-	} else
-		sc->pn_rx_war = 0;
-
-	ifp = &sc->arpcom.ac_if;
-	ifp->if_softc = sc;
-	ifp->if_mtu = ETHERMTU;
-	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
-	ifp->if_ioctl = pn_ioctl;
-	ifp->if_output = ether_output;
-	ifp->if_start = pn_start;
-	ifp->if_watchdog = pn_watchdog;
-	ifp->if_baudrate = 10000000;
-	ifp->if_snd.ifq_maxlen = PN_TX_LIST_CNT - 1;
-	bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ);
-
-	ifmedia_init(&sc->ifmedia, 0, pn_ifmedia_upd, pn_ifmedia_sts);
-
-	for (i = PN_PHYADDR_MIN; i < PN_PHYADDR_MAX + 1; i++) {
-		sc->pn_phy_addr = i;
-		pn_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET);
-		DELAY(500);
-		while (pn_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_RESET);
-		if ((phy_sts = pn_phy_readreg(sc, PHY_BMSR)))
-			break;
-	}
-	if (phy_sts) {
-		phy_vid = pn_phy_readreg(sc, PHY_VENID);
-		phy_did = pn_phy_readreg(sc, PHY_DEVID);
-		p = pn_phys;
-		while (p->pn_vid) {
-			if (phy_vid == p->pn_vid &&
-			    (phy_did | 0xf) == p->pn_vid) {
-				sc->pn_pinfo = p;
-				break;
-			}
-			p++;
-		}
-		if (sc->pn_pinfo == NULL)
-			sc->pn_pinfo = &pn_phys[PHY_UNKNOWN];
-		pn_getmode_mii(sc);
-		pn_autoneg_mii(sc, PN_FLAG_FORCEDELAY, 1);
-	} else {
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
-		ifmedia_add(&sc->ifmedia,
-                    IFM_ETHER|IFM_100_TX|IFM_HDX, 0, NULL);
-		ifmedia_add(&sc->ifmedia,
-                    IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_T4, 0, NULL);
-		ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
-		pn_autoneg(sc, PN_FLAG_FORCEDELAY, 1);
-	}
-
-	media = sc->ifmedia.ifm_media;
-	pn_stop(sc);
-	ifmedia_set(&sc->ifmedia, media);
-
-	if_attach(ifp);
-	ether_ifattach(ifp);
-#if NBPFILTER > 0
-	bpfattach(&sc->arpcom.ac_if.if_bpf, ifp,
-	    DLT_EN10MB, sizeof(struct ether_header));
-#endif
-	shutdownhook_establish(pn_shutdown, sc);
-fail:
-	splx(s);
-}
-
-void
-pn_shutdown(v)
-	void *v;
-{
-	struct pn_softc *sc = (struct pn_softc *)v;
-
-	pn_stop(sc);
-}
-
-struct cfattach pn_ca = {
-	sizeof(struct pn_softc), pn_probe, pn_attach
-};
-
-struct cfdriver pn_cd = {
-	0, "pn", DV_IFNET
-};
diff --git a/sys/dev/pci/if_pnreg.h b/sys/dev/pci/if_pnreg.h
deleted file mode 100644
index d997d30f8d6..00000000000
--- a/sys/dev/pci/if_pnreg.h
+++ /dev/null
@@ -1,718 +0,0 @@
-/*	$OpenBSD: if_pnreg.h,v 1.4 1999/09/15 01:17:49 jason Exp $	*/
-
-/*
- * Copyright (c) 1997, 1998
- *	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.
- *
- *	$FreeBSD: if_pnreg.h,v 1.13 1999/05/28 18:43:11 wpaul Exp $
- */
-
-/*
- * PNIC register definitions.
- */
-
-#define PN_BUSCTL		0x00	/* bus control */
-#define PN_TXSTART		0x08	/* tx start demand */
-#define PN_RXSTART		0x10	/* rx start demand */
-#define PN_RXADDR		0x18	/* rx descriptor list start addr */
-#define PN_TXADDR		0x20	/* tx descriptor list start addr */
-#define PN_ISR			0x28	/* interrupt status register */
-#define PN_NETCFG		0x30	/* network config register */
-#define PN_IMR			0x38	/* interrupt mask */
-#define PN_FRAMESDISCARDED	0x40	/* # of discarded frames */
-#define PN_SIO			0x48	/* MII and ROM/EEPROM access */
-#define PN_GEN			0x60	/* general purpose register */
-#define PN_ENDEC		0x78	/* ENDEC general register */
-#define PN_SIOPWR		0x90	/* serial eeprom power up */
-#define PN_SIOCTL		0x98	/* EEPROM control register */
-#define PN_MII			0xA0	/* MII access register */
-#define PN_NWAY			0xB8	/* Internal NWAY register */
-
-/*
- * Bus control bits.
- */
-#define PN_BUSCTL_RESET		0x00000001
-#define PN_BUSCTL_ARBITRATION	0x00000002
-#define PN_BUSCTL_SKIPLEN	0x0000007C
-#define PN_BUSCTL_BUF_BIGENDIAN	0x00000080
-#define PN_BUSCTL_BURSTLEN	0x00003F00
-#define PN_BUSCTL_CACHEALIGN	0x0000C000
-#define PN_BUSCTL_TXPOLL	0x000E0000
-#define PN_BUSCTL_MUSTBEONE	0x04000000
-
-#define PN_SKIPLEN_1LONG	0x00000004
-#define PN_SKIPLEN_2LONG	0x00000008
-#define PN_SKIPLEN_3LONG	0x00000010
-#define PN_SKIPLEN_4LONG	0x00000020
-#define PN_SKIPLEN_5LONG	0x00000040
-
-#define PN_CACHEALIGN_NONE	0x00000000
-#define PN_CACHEALIGN_8LONG	0x00004000
-#define PN_CACHEALIGN_16LONG	0x00008000
-#define PN_CACHEALIGN_32LONG	0x0000C000
-
-#define PN_BURSTLEN_USECA	0x00000000
-#define PN_BURSTLEN_1LONG	0x00000100
-#define PN_BURSTLEN_2LONG	0x00000200
-#define PN_BURSTLEN_4LONG	0x00000400
-#define PN_BURSTLEN_8LONG	0x00000800
-#define PN_BURSTLEN_16LONG	0x00001000
-#define PN_BURSTLEN_32LONG	0x00002000
-
-#define PN_TXPOLL_OFF		0x00000000
-#define PN_TXPOLL_200U		0x00020000
-#define PN_TXPOLL_800U		0x00040000
-#define PN_TXPOLL_1600U		0x00060000
-#define PN_TXPOLL_12_8M		0x00080000
-#define PN_TXPOLL_25_6M		0x000A0000
-#define PN_TXPOLL_51_2M		0x000C0000
-#define PN_TXPOLL_102_4M	0x000E0000
-
-#define PN_BUSCTL_CONFIG	\
-	(PN_CACHEALIGN_8LONG|PN_BURSTLEN_8LONG)
-
-/*
- * Interrupt status bits.
- */
-#define PN_ISR_TX_OK		0x00000001	/* packet tx ok */
-#define PN_ISR_TX_IDLE		0x00000002	/* tx stopped */
-#define PN_ISR_TX_NOBUF		0x00000004	/* no tx buffer available */
-#define PN_ISR_TX_JABTIMEO	0x00000008	/* jabber timeout */
-#define PN_ISR_LINKPASS		0x00000010	/* link test pass */
-#define PN_ISR_TX_UNDERRUN	0x00000020	/* transmit underrun */
-#define PN_ISR_RX_OK		0x00000040	/* packet rx ok */
-#define PN_ISR_RX_NOBUF		0x00000080	/* rx buffer unavailable */
-#define PN_ISR_RX_IDLE		0x00000100	/* rx stopped */
-#define PN_ISR_RX_WATCHDOG	0x00000200	/* rx watchdog timeo */
-#define PN_ISR_TX_EARLY		0x00000400	/* rx watchdog timeo */
-#define PN_ISR_LINKFAIL		0x00001000
-#define PN_ISR_BUS_ERR		0x00002000
-#define PN_ISR_ABNORMAL		0x00008000
-#define PN_ISR_NORMAL		0x00010000
-#define PN_ISR_RX_STATE		0x000E0000
-#define PN_ISR_TX_STATE		0x00700000
-#define PN_ISR_BUSERRTYPE	0x03800000
-#define PN_ISR_TXABORT		0x04000000	/* tx abort */
-
-#define PN_RXSTATE_STOPPED	0x00000000	/* 000 - Stopped */
-#define PN_RXSTATE_FETCH	0x00020000	/* 001 - Fetching descriptor */
-#define PN_RXSTATE_ENDCHECK	0x00040000	/* 010 - check for rx end */
-#define PN_RXSTATE_WAIT		0x00060000	/* 011 - waiting for packet */
-#define PN_RXSTATE_SUSPEND	0x00080000	/* 100 - suspend rx */
-#define PN_RXSTATE_CLOSE	0x000A0000	/* 101 - close rx desc */
-#define PN_RXSTATE_FLUSH	0x000C0000	/* 110 - flush from FIFO */
-#define PN_RXSTATE_DEQUEUE	0x000E0000	/* 111 - dequeue from FIFO */
-
-#define PN_TXSTATE_RESET	0x00000000	/* 000 - reset */
-#define PN_TXSTATE_FETCH	0x00100000	/* 001 - fetching descriptor */
-#define PN_TXSTATE_WAITEND	0x00200000	/* 010 - wait for tx end */
-#define PN_TXSTATE_READING	0x00300000	/* 011 - read and enqueue */
-#define PN_TXSTATE_RSVD		0x00400000	/* 100 - reserved */
-#define PN_TXSTATE_SETUP	0x00500000	/* 101 - setup packet */
-#define PN_TXSTATE_SUSPEND	0x00600000	/* 110 - suspend tx */
-#define PN_TXSTATE_CLOSE	0x00700000	/* 111 - close tx desc */
-
-#define PN_BUSERR_PARITY	0x00000000
-#define PN_BUSERR_MASTABRT	0x00800000
-#define PN_BUSERR_TGTABRT	0x01000000
-#define PN_BUSERR_RSVD1		0x01800000
-#define PN_BUSERR_RSVD2		0x02000000
-
-/*
- * Network config bits.
- */
-#define PN_NETCFG_HASHPERF	0x00000001	/* 0 == perf, 1 == hash */
-#define PN_NETCFG_RX_ON		0x00000002
-#define PN_NETCFG_HASHONLY	0x00000004	/* 1 == allhash */
-#define PN_NETCFG_RX_PASSERR	0x00000008
-#define PN_NETCFG_INVERSFILT	0x00000010
-#define PN_NETCFG_BACKOFF	0x00000020
-#define PN_NETCFG_RX_PROMISC	0x00000040
-#define PN_NETCFG_RX_ALLMULTI	0x00000080
-#define PN_NETCFG_FLAKYOSC	0x00000100
-#define PN_NETCFG_FULLDUPLEX	0x00000200
-#define PN_NETCFG_OPERMODE	0x00000C00
-#define PN_NETCFG_FORCECOLL	0x00001000
-#define PN_NETCFG_TX_ON		0x00002000
-#define PN_NETCFG_TX_THRESH	0x0000C000
-#define PN_NETCFG_TX_BACKOFF	0x00020000
-#define PN_NETCFG_MIIENB	0x00040000	/* 1 == MII, 0 == internal */
-#define PN_NETCFG_HEARTBEAT	0x00080000	/* 1 == disabled */
-#define PN_NETCFG_TX_IMMEDIATE	0x00100000
-#define PN_NETCFG_STORENFWD	0x00200000
-#define PN_NETCFG_SPEEDSEL	0x00400000	/* 1 == 10Mbps 0 == 100Mbps */
-#define PN_NETCFG_PCS		0x00800000	/* 1 == 100baseTX */
-#define PN_NETCFG_SCRAMBLER	0x01000000
-#define PN_NETCFG_NO_RXCRC	0x20000000
-#define PN_NETCFG_EXT_ENDEC	0x40000000	/* 1 == ext, 0 == int PHY */
-
-#define PN_OPMODE_NORM		0x00000000
-#define PN_OPMODE_INTLOOP	0x00000400
-#define PN_OPMODE_EXTLOOP	0x00000800
-
-#define PN_TXTHRESH_72BYTES	0x00000000
-#define PN_TXTHRESH_96BYTES	0x00004000
-#define PN_TXTHRESH_128BYTES	0x00008000
-#define PN_TXTHRESH_160BYTES	0x0000C000
-
-/*
- * Interrupt mask bits.
- */
-#define PN_IMR_TX_OK		0x00000001	/* packet tx ok */
-#define PN_IMR_TX_IDLE		0x00000002	/* tx stopped */
-#define PN_IMR_TX_NOBUF		0x00000004	/* no tx buffer available */
-#define PN_IMR_TX_JABTIMEO	0x00000008	/* jabber timeout */
-#define PN_IMR_LINKPASS		0x00000010	/* link test pass */
-#define PN_IMR_TX_UNDERRUN	0x00000020	/* transmit underrun */
-#define PN_IMR_RX_OK		0x00000040	/* packet rx ok */
-#define PN_IMR_RX_NOBUF		0x00000080	/* rx buffer unavailable */
-#define PN_IMR_RX_IDLE		0x00000100	/* rx stopped */
-#define PN_IMR_RX_WATCHDOG	0x00000200	/* rx watchdog timeo */
-#define PN_IMR_TX_EARLY		0x00000400	/* rx watchdog timeo */
-#define PN_IMR_BUS_ERR		0x00002000
-#define PN_IMR_ABNORMAL		0x00008000
-#define PN_IMR_NORMAL		0x00010000
-#define PN_ISR_TXABORT		0x04000000	/* tx abort */
-
-#define PN_INTRS							\
-	(PN_IMR_RX_OK|PN_IMR_TX_OK|PN_IMR_RX_NOBUF|			\
-	PN_IMR_TX_NOBUF|PN_IMR_TX_UNDERRUN|PN_IMR_BUS_ERR|		\
-	PN_IMR_ABNORMAL|PN_IMR_NORMAL)
-
-/*
- * Serial I/O (EEPROM/ROM) bits.
- */
-#define PN_SIO_DATA		0x0000003F
-#define PN_SIO_OPCODE		0x00000300
-#define PN_SIO_BUSY		0x80000000
-
-/*
- * SIOCTL/EEPROM bits
- */
-#define PN_EE_READ		0x600
-
-/*
- * General purpose register bits.
- */
-#define PN_GEN_CTL		0x000000F0
-#define PN_GEN_100TX_LINK	0x00000008
-#define PN_GEN_BNC_ENB		0x00000004
-#define PN_GEN_100TX_LOOP	0x00000002	/* 1 == normal, 0 == loop */
-#define PN_GEN_SPEEDSEL		0x00000001	/* 1 == 100Mbps, 0 == 10Mbps */
-#define PN_GEN_MUSTBEONE	0x00000030
-
-/*
- * General ENDEC bits.
- */
-#define PN_ENDEC_JABBERDIS	0x000000001	/* 1 == disable, 0 == enable */
-
-/*
- * MII bits.
- */
-#define PN_MII_DATA		0x0000FFFF
-#define PN_MII_REGADDR		0x007C0000
-#define PN_MII_PHYADDR		0x0F800000
-#define PN_MII_OPCODE		0x30000000
-#define PN_MII_RESERVED		0x00020000
-#define PN_MII_BUSY		0x80000000
-
-#define PN_MII_READ		0x60020000 /* read PHY command */
-#define PN_MII_WRITE		0x50020000 /* write PHY command */
-
-/*
- * Internal PHY NWAY register bits.
- */
-#define PN_NWAY_RESET		0x00000001	/* reset */
-#define PN_NWAY_PDOWN		0x00000002	/* power down */
-#define PN_NWAY_BYPASS		0x00000004	/* bypass */
-#define PN_NWAY_AUILOWCUR	0x00000008	/* AUI low current */
-#define PN_NWAY_TPEXTEND	0x00000010	/* low squelch voltage */
-#define PN_NWAY_POLARITY	0x00000020	/* 0 == on, 1 == off */
-#define PN_NWAY_TP		0x00000040	/* 1 == tp, 0 == AUI */
-#define PN_NWAY_AUIVOLT		0x00000080	/* 1 == full, 0 == half */
-#define PN_NWAY_DUPLEX		0x00000100	/* 1 == full, 0 == half */
-#define PN_NWAY_LINKTEST	0x00000200	/* 0 == on, 1 == off */
-#define PN_NWAY_AUTODETECT	0x00000400	/* 1 == off, 0 == on */
-#define PN_NWAY_SPEEDSEL	0x00000800	/* 0 == 10, 1 == 100 */
-#define PN_NWAY_NWAY_ENB	0x00001000	/* 0 == off, 1 == on */
-#define PN_NWAY_CAP10HALF	0x00002000
-#define PN_NWAY_CAP10FULL	0x00004000
-#define	PN_NWAY_CAP100FULL	0x00008000
-#define PN_NWAY_CAP100HALF	0x00010000
-#define PN_NWAY_CAP100T4	0x00020000
-#define PN_NWAY_AUTONEGRSTR	0x02000000
-#define PN_NWAY_REMFAULT	0x04000000
-#define PN_NWAY_LPAR10HALF	0x08000000
-#define PN_NWAY_LPAR10FULL	0x10000000
-#define PN_NWAY_LPAR100FULL	0x20000000
-#define PN_NWAY_LPAR100HALF	0x40000000
-#define PN_NWAY_LPAR100T4	0x80000000
-
-/*
- * Nway register bits that must be set to turn on to initiate
- * an autoneg session with all modes advertized and AUI disabled.
- */
-#define PN_NWAY_AUTOENB							\
-       (PN_NWAY_AUILOWCUR|PN_NWAY_TPEXTEND|PN_NWAY_POLARITY|PN_NWAY_TP	\
-        |PN_NWAY_NWAY_ENB|PN_NWAY_CAP10HALF|PN_NWAY_CAP10FULL|		\
-        PN_NWAY_CAP100FULL|PN_NWAY_CAP100HALF|PN_NWAY_CAP100T4|	\
-        PN_NWAY_AUTONEGRSTR)
-
-#define PN_NWAY_MODE_10HD						\
-       (PN_NWAY_CAP10HALF|PN_NWAY_CAP10FULL|				\
-        PN_NWAY_CAP100FULL|PN_NWAY_CAP100HALF|PN_NWAY_CAP100T4|		\
-        PN_NWAY_AUILOWCUR|PN_NWAY_TPEXTEND|PN_NWAY_POLARITY|		\
-        PN_NWAY_TP)
-
-#define PN_NWAY_MODE_10FD						\
-       (PN_NWAY_CAP10HALF|PN_NWAY_CAP10FULL|				\
-        PN_NWAY_CAP100FULL|PN_NWAY_CAP100HALF|PN_NWAY_CAP100T4|		\
-        PN_NWAY_AUILOWCUR|PN_NWAY_TPEXTEND|PN_NWAY_POLARITY|		\
-        PN_NWAY_TP|PN_NWAY_DUPLEX)
-
-#define PN_NWAY_MODE_100HD						\
-       (PN_NWAY_CAP10HALF|PN_NWAY_CAP10FULL|				\
-        PN_NWAY_CAP100FULL|PN_NWAY_CAP100HALF|PN_NWAY_CAP100T4|		\
-        PN_NWAY_AUILOWCUR|PN_NWAY_TPEXTEND|PN_NWAY_POLARITY|		\
-        PN_NWAY_TP|PN_NWAY_SPEEDSEL)
-
-#define PN_NWAY_MODE_100FD						\
-       (PN_NWAY_CAP10HALF|PN_NWAY_CAP10FULL|				\
-        PN_NWAY_CAP100FULL|PN_NWAY_CAP100HALF|PN_NWAY_CAP100T4|		\
-        PN_NWAY_AUILOWCUR|PN_NWAY_TPEXTEND|PN_NWAY_POLARITY|		\
-        PN_NWAY_TP|PN_NWAY_SPEEDSEL|PN_NWAY_DUPLEX)
-
-#define PN_NWAY_MODE_100T4 PN_NWAY_MODE_100HD
-
-#define PN_NWAY_LPAR							\
-       (PN_NWAY_LPAR10HALF|PN_NWAY_LPAR10FULL|PN_NWAY_LPAR100HALF|	\
-	 PN_NWAY_LPAR100FULL|PN_NWAY_LPAR100T4)
-
-/*
- * Size of a setup frame.
- */
-#define PN_SFRAME_LEN		192
-
-/*
- * PNIC TX/RX list structure.
- */
-
-struct pn_desc {
-	u_int32_t		pn_status;
-	u_int32_t		pn_ctl;
-	u_int32_t		pn_ptr1;
-	u_int32_t		pn_ptr2;
-};
-
-#define pn_data		pn_ptr1
-#define pn_next		pn_ptr2
-
-
-#define RX_RXSTAT_FIFOOFLOW	0x00000001
-#define PN_RXSTAT_CRCERR	0x00000002
-#define PN_RXSTAT_DRIBBLE	0x00000004
-#define PN_RXSTAT_WATCHDOG	0x00000010
-#define PN_RXSTAT_FRAMETYPE	0x00000020	/* 0 == IEEE 802.3 */
-#define PN_RXSTAT_COLLSEEN	0x00000040
-#define PN_RXSTAT_GIANT		0x00000080
-#define PN_RXSTAT_LASTFRAG	0x00000100
-#define PN_RXSTAT_FIRSTFRAG	0x00000200
-#define PN_RXSTAT_MULTICAST	0x00000400
-#define PN_RXSTAT_RUNT		0x00000800
-#define PN_RXSTAT_RXTYPE	0x00003000
-#define PN_RXSTAT_RXERR		0x00008000
-#define PN_RXSTAT_RXLEN		0x7FFF0000
-#define PN_RXSTAT_OWN		0x80000000
-
-#define PN_RXBYTES(x)		((x & PN_RXSTAT_RXLEN) >> 16)
-#define PN_RXSTAT (PN_RXSTAT_FIRSTFRAG|PN_RXSTAT_LASTFRAG|PN_RXSTAT_OWN)
-
-#define PN_RXCTL_BUFLEN1	0x00000FFF
-#define PN_RXCTL_BUFLEN2	0x00FFF000
-#define PN_RXCTL_RLINK		0x01000000
-#define PN_RXCTL_RLAST		0x02000000
-
-#define PN_TXSTAT_DEFER		0x00000001
-#define PN_TXSTAT_UNDERRUN	0x00000002
-#define PN_TXSTAT_LINKFAIL	0x00000003
-#define PN_TXSTAT_COLLCNT	0x00000078
-#define PN_TXSTAT_SQE		0x00000080
-#define PN_TXSTAT_EXCESSCOLL	0x00000100
-#define PN_TXSTAT_LATECOLL	0x00000200
-#define PN_TXSTAT_NOCARRIER	0x00000400
-#define PN_TXSTAT_CARRLOST	0x00000800
-#define PN_TXSTAT_JABTIMEO	0x00004000
-#define PN_TXSTAT_ERRSUM	0x00008000
-#define PN_TXSTAT_OWN		0x80000000
-
-#define PN_TXCTL_BUFLEN1	0x000007FF
-#define PN_TXCTL_BUFLEN2	0x003FF800
-#define PN_TXCTL_FILTTYPE0	0x00400000
-#define PN_TXCTL_PAD		0x00800000
-#define PN_TXCTL_TLINK		0x01000000
-#define PN_TXCTL_TLAST		0x02000000
-#define PN_TXCTL_NOCRC		0x04000000
-#define PN_TXCTL_SETUP		0x08000000
-#define PN_TXCTL_FILTTYPE1	0x10000000
-#define PN_TXCTL_FIRSTFRAG	0x20000000
-#define PN_TXCTL_LASTFRAG	0x40000000
-#define PN_TXCTL_FINT		0x80000000
-
-#define PN_FILTER_PERFECT	0x00000000
-#define PN_FILTER_HASHPERF	0x00400000
-#define PN_FILTER_INVERSE	0x10000000
-#define PN_FILTER_HASHONLY	0x10400000
-
-#define PN_MAXFRAGS		16
-#define PN_RX_LIST_CNT		64
-#define PN_TX_LIST_CNT		64
-#define PN_MIN_FRAMELEN		60
-#define PN_FRAMELEN		1536
-#define PN_RXLEN		1518
-
-/*
- * A tx 'super descriptor' is actually 16 regular descriptors
- * back to back.
- */
-struct pn_txdesc {
-	struct pn_desc		pn_frag[PN_MAXFRAGS];
-};
-
-#define PN_TXNEXT(x)	x->pn_ptr->pn_frag[x->pn_lastdesc].pn_next
-#define PN_TXSTATUS(x)	x->pn_ptr->pn_frag[x->pn_lastdesc].pn_status
-#define PN_TXCTL(x)	x->pn_ptr->pn_frag[x->pn_lastdesc].pn_ctl
-#define PN_TXDATA(x)	x->pn_ptr->pn_frag[x->pn_lastdesc].pn_data
-
-#define PN_TXOWN(x)	x->pn_ptr->pn_frag[0].pn_status
-
-struct pn_list_data {
-	struct pn_desc		pn_rx_list[PN_RX_LIST_CNT];
-	struct pn_txdesc	pn_tx_list[PN_TX_LIST_CNT];
-};
-
-struct pn_chain {
-	struct pn_txdesc	*pn_ptr;
-	struct mbuf		*pn_mbuf;
-	struct pn_chain		*pn_nextdesc;
-	u_int8_t		pn_lastdesc;
-};
-
-struct pn_chain_onefrag {
-	struct pn_desc		*pn_ptr;
-	struct mbuf		*pn_mbuf;
-	struct pn_chain_onefrag	*pn_nextdesc;
-};
-
-struct pn_chain_data {
-	struct pn_desc		pn_sframe;
-	u_int32_t		pn_sbuf[PN_SFRAME_LEN/sizeof(u_int32_t)];
-	struct pn_chain_onefrag	pn_rx_chain[PN_RX_LIST_CNT];
-	struct pn_chain		pn_tx_chain[PN_TX_LIST_CNT];
-
-	struct pn_chain_onefrag	*pn_rx_head;
-
-	struct pn_chain		*pn_tx_head;
-	struct pn_chain		*pn_tx_tail;
-	struct pn_chain		*pn_tx_free;
-};
-
-struct pn_type {
-	u_int16_t		pn_vid;
-	u_int16_t		pn_did;
-	char			*pn_name;
-};
-
-struct pn_mii_frame {
-	u_int8_t		mii_stdelim;
-	u_int8_t		mii_opcode;
-	u_int8_t		mii_phyaddr;
-	u_int8_t		mii_regaddr;
-	u_int8_t		mii_turnaround;
-	u_int16_t		mii_data;
-};
-
-/*
- * MII constants
- */
-#define PN_MII_STARTDELIM	0x01
-#define PN_MII_READOP		0x02
-#define PN_MII_WRITEOP		0x01
-#define PN_MII_TURNAROUND	0x02
-
-#define PN_FLAG_FORCEDELAY	1
-#define PN_FLAG_SCHEDDELAY	2
-#define PN_FLAG_DELAYTIMEO	3	
-
-struct pn_softc {
-	struct device		sc_dev;		/* generic device structure */
-	void *			sc_ih;		/* interrupt handler cookie */
-	struct arpcom		arpcom;		/* interface info */
-	struct ifmedia		ifmedia;	/* media info */
-	bus_space_handle_t	pn_bhandle;	/* bus space handle */
-	bus_space_tag_t		pn_btag;	/* bus space tag */
-	struct pn_type		*pn_info;	/* PNIC adapter info */
-	struct pn_type		*pn_pinfo;	/* phy info */
-	u_int8_t		pn_unit;	/* interface number */
-	u_int8_t		pn_type;
-	u_int8_t		pn_phy_addr;	/* PHY address */
-	u_int8_t		pn_tx_pend;	/* TX pending */
-	u_int8_t		pn_want_auto;
-	u_int8_t		pn_autoneg;
-	caddr_t			pn_ldata_ptr;
-#ifdef PN_RX_BUG_WAR
-#define PN_168_REV	16
-#define PN_169_REV	32
-#define PN_169B_REV	33
-	u_int8_t		pn_rx_war;
-	u_int8_t		pn_cachesize;
-	struct pn_chain_onefrag	*pn_rx_bug_save;
-	unsigned char           *pn_rx_buf;
-#endif
-	struct pn_list_data	*pn_ldata;
-	struct pn_chain_data	pn_cdata;
-};
-
-/*
- * register space access macros
- */
-#define CSR_WRITE_4(sc, reg, val)	\
-	bus_space_write_4(sc->pn_btag, sc->pn_bhandle, reg, val)
-#define CSR_WRITE_2(sc, reg, val)	\
-	bus_space_write_2(sc->pn_btag, sc->pn_bbhandle, reg, val)
-#define CSR_WRITE_1(sc, reg, val)	\
-	bus_space_write_1(sc->pn_btag, sc->pn_bhandle, reg, val)
-
-#define CSR_READ_4(sc, reg)		\
-	bus_space_read_4(sc->pn_btag, sc->pn_bhandle, reg)
-#define CSR_READ_2(sc, reg)		\
-	bus_space_read_2(sc->pn_btag, sc->pn_bhandle, reg)
-#define CSR_READ_1(sc, reg)		\
-	bus_space_read_1(sc->pn_btag, sc->pn_bhandle, reg)
-
-#define PN_TIMEOUT		1000
-
-/*
- * General constants that are fun to know.
- *
- * Lite-On PNIC PCI vendor ID
- */
-#define	PN_VENDORID		0x11AD
-
-/*
- * Lite-On PNIC PCI device ID.
- */
-#define	PN_DEVICEID_PNIC	0x0002
-
-/*
- * The 82c168 chip has the same PCI vendor/device ID as the
- * 82c169, but a different revision. Assume that any revision
- * between 0x10 and 0x1F is an 82c168.
- */
-#define PN_REVMASK		0xF0
-#define PN_REVID_82C168		0x10
-#define PN_REVID_82C169		0x20
-
-/*
- * Texas Instruments PHY identifiers
- */
-#define TI_PHY_VENDORID		0x4000
-#define TI_PHY_10BT		0x501F
-#define TI_PHY_100VGPMI		0x502F
-
-/*
- * These ID values are for the NS DP83840A 10/100 PHY
- */
-#define NS_PHY_VENDORID		0x2000
-#define NS_PHY_83840A		0x5C0F
-
-/*
- * Level 1 10/100 PHY
- */
-#define LEVEL1_PHY_VENDORID	0x7810
-#define LEVEL1_PHY_LXT970	0x000F
-
-/*
- * Intel 82555 10/100 PHY
- */
-#define INTEL_PHY_VENDORID	0x0A28
-#define INTEL_PHY_82555		0x015F
-
-/*
- * SEEQ 80220 10/100 PHY
- */
-#define SEEQ_PHY_VENDORID	0x0016
-#define SEEQ_PHY_80220		0xF83F
-
-
-/*
- * PCI low memory base and low I/O base register, and
- * other PCI registers.
- */
-
-#define PN_PCI_VENDOR_ID	0x00
-#define PN_PCI_DEVICE_ID	0x02
-#define PN_PCI_COMMAND		0x04
-#define PN_PCI_STATUS		0x06
-#define PN_PCI_REVISION		0x08
-#define PN_PCI_CLASSCODE	0x09
-#define PN_PCI_CACHELEN		0x0C
-#define PN_PCI_LATENCY_TIMER	0x0D
-#define PN_PCI_HEADER_TYPE	0x0E
-#define PN_PCI_LOIO		0x10
-#define PN_PCI_LOMEM		0x14
-#define PN_PCI_BIOSROM		0x30
-#define PN_PCI_INTLINE		0x3C
-#define PN_PCI_INTPIN		0x3D
-#define PN_PCI_MINGNT		0x3E
-#define PN_PCI_MINLAT		0x0F
-#define PN_PCI_RESETOPT		0x48
-#define PN_PCI_EEPROM_DATA	0x4C
-
-/* power management registers */
-#define PN_PCI_CAPID		0xDC /* 8 bits */
-#define PN_PCI_NEXTPTR		0xDD /* 8 bits */
-#define PN_PCI_PWRMGMTCAP	0xDE /* 16 bits */
-#define PN_PCI_PWRMGMTCTRL	0xE0 /* 16 bits */
-
-#define PN_PSTATE_MASK		0x0003
-#define PN_PSTATE_D0		0x0000
-#define PN_PSTATE_D1		0x0002
-#define PN_PSTATE_D2		0x0002
-#define PN_PSTATE_D3		0x0003
-#define PN_PME_EN		0x0010
-#define PN_PME_STATUS		0x8000
-
-#define PHY_UNKNOWN		6
-
-#define PN_PHYADDR_MIN		0x00
-#define PN_PHYADDR_MAX		0x1F
-
-#define PHY_BMCR		0x00
-#define PHY_BMSR		0x01
-#define PHY_VENID		0x02
-#define PHY_DEVID		0x03
-#define PHY_ANAR		0x04
-#define PHY_LPAR		0x05
-#define PHY_ANEXP		0x06
-
-#define PHY_ANAR_NEXTPAGE	0x8000
-#define PHY_ANAR_RSVD0		0x4000
-#define PHY_ANAR_TLRFLT		0x2000
-#define PHY_ANAR_RSVD1		0x1000
-#define PHY_ANAR_RSVD2		0x0800
-#define PHY_ANAR_RSVD3		0x0400
-#define PHY_ANAR_100BT4		0x0200
-#define PHY_ANAR_100BTXFULL	0x0100
-#define PHY_ANAR_100BTXHALF	0x0080
-#define PHY_ANAR_10BTFULL	0x0040
-#define PHY_ANAR_10BTHALF	0x0020
-#define PHY_ANAR_PROTO4		0x0010
-#define PHY_ANAR_PROTO3		0x0008
-#define PHY_ANAR_PROTO2		0x0004
-#define PHY_ANAR_PROTO1		0x0002
-#define PHY_ANAR_PROTO0		0x0001
-
-/*
- * These are the register definitions for the PHY (physical layer
- * interface chip).
- */
-/*
- * PHY BMCR Basic Mode Control Register
- */
-#define PHY_BMCR_RESET			0x8000
-#define PHY_BMCR_LOOPBK			0x4000
-#define PHY_BMCR_SPEEDSEL		0x2000
-#define PHY_BMCR_AUTONEGENBL		0x1000
-#define PHY_BMCR_RSVD0			0x0800	/* write as zero */
-#define PHY_BMCR_ISOLATE		0x0400
-#define PHY_BMCR_AUTONEGRSTR		0x0200
-#define PHY_BMCR_DUPLEX			0x0100
-#define PHY_BMCR_COLLTEST		0x0080
-#define PHY_BMCR_RSVD1			0x0040	/* write as zero, don't care */
-#define PHY_BMCR_RSVD2			0x0020	/* write as zero, don't care */
-#define PHY_BMCR_RSVD3			0x0010	/* write as zero, don't care */
-#define PHY_BMCR_RSVD4			0x0008	/* write as zero, don't care */
-#define PHY_BMCR_RSVD5			0x0004	/* write as zero, don't care */
-#define PHY_BMCR_RSVD6			0x0002	/* write as zero, don't care */
-#define PHY_BMCR_RSVD7			0x0001	/* write as zero, don't care */
-/*
- * RESET: 1 == software reset, 0 == normal operation
- * Resets status and control registers to default values.
- * Relatches all hardware config values.
- *
- * LOOPBK: 1 == loopback operation enabled, 0 == normal operation
- *
- * SPEEDSEL: 1 == 100Mb/s, 0 == 10Mb/s
- * Link speed is selected byt his bit or if auto-negotiation if bit
- * 12 (AUTONEGENBL) is set (in which case the value of this register
- * is ignored).
- *
- * AUTONEGENBL: 1 == Autonegotiation enabled, 0 == Autonegotiation disabled
- * Bits 8 and 13 are ignored when autoneg is set, otherwise bits 8 and 13
- * determine speed and mode. Should be cleared and then set if PHY configured
- * for no autoneg on startup.
- *
- * ISOLATE: 1 == isolate PHY from MII, 0 == normal operation
- *
- * AUTONEGRSTR: 1 == restart autonegotiation, 0 = normal operation
- *
- * DUPLEX: 1 == full duplex mode, 0 == half duplex mode
- *
- * COLLTEST: 1 == collision test enabled, 0 == normal operation
- */
-
-/* 
- * PHY, BMSR Basic Mode Status Register 
- */   
-#define PHY_BMSR_100BT4			0x8000
-#define PHY_BMSR_100BTXFULL		0x4000
-#define PHY_BMSR_100BTXHALF		0x2000
-#define PHY_BMSR_10BTFULL		0x1000
-#define PHY_BMSR_10BTHALF		0x0800
-#define PHY_BMSR_RSVD1			0x0400	/* write as zero, don't care */
-#define PHY_BMSR_RSVD2			0x0200	/* write as zero, don't care */
-#define PHY_BMSR_RSVD3			0x0100	/* write as zero, don't care */
-#define PHY_BMSR_RSVD4			0x0080	/* write as zero, don't care */
-#define PHY_BMSR_MFPRESUP		0x0040
-#define PHY_BMSR_AUTONEGCOMP		0x0020
-#define PHY_BMSR_REMFAULT		0x0010
-#define PHY_BMSR_CANAUTONEG		0x0008
-#define PHY_BMSR_LINKSTAT		0x0004
-#define PHY_BMSR_JABBER			0x0002
-#define PHY_BMSR_EXTENDED		0x0001
-
-#ifdef __alpha__
-#undef vtophys
-#define vtophys(va)		alpha_XXX_dmamap((vm_offset_t)va)
-#endif
-
-#ifndef ETHER_CRC_LEN
-#define ETHER_CRC_LEN	4
-#endif