Subject: Re: forcedeth

From: Manfred Spraul <[email-masked]>
Date: Mon, 02 Aug 2004 21:38:41 +0200

James Drabb wrote:

>>    Manfred
>
> -- 
>
> Please send me the latest forcedeth.c and I will give it a go.  Do you 
> have the makefile so I can compile the module outside of the kernel?
>
No - you need the 2.6.7 tree as the base.
Attached is the patch against 2.6.7

I'm again interested in the same sequence as you did after booting into 
WinXP, just without WinXP: modprobe, wait, ifup, ethtool, unplug cable, 
ethtool, plug cable back in, ethtool
Always wait ~ 5 seconds before calling ethtool.
The patch is a special version, it already contains a timer that polls 
for phy state changes and prints them into the kernel log (dmesg).

--
    Manfred

// $Header$
// Kernel Version:
//  VERSION = 2
//  PATCHLEVEL = 6
//  SUBLEVEL = 7
//  EXTRAVERSION =
--- 2.6/drivers/net/forcedeth.c	2004-08-02 21:19:05.979380576 +0200
+++ build-2.6/drivers/net/forcedeth.c	2004-08-02 21:16:47.678405520 +0200
@@ -10,8 +10,11 @@
  * trademarks of NVIDIA Corporation in the United States and other
  * countries.
  *
- * Copyright (C) 2003 Manfred Spraul
+ * Copyright (C) 2003,4 Manfred Spraul
  * Copyright (C) 2004 Andrew de Quincey (wol support)
+ * Copyright (C) 2004 Carl-Daniel Hailfinger (invalid MAC handling, insane
+ *		IRQ rate fixes, bigendian fixes, cleanups, verification)
+ * Copyright (c) 2004 NVIDIA Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -60,15 +63,18 @@
  * 	0.19: 29 Nov 2003: Handle RxNoBuf, detect & handle invalid mac
  * 			   addresses, really stop rx if already running
  * 			   in nv_start_rx, clean up a bit.
- * 				(C) Carl-Daniel Hailfinger
  * 	0.20: 07 Dec 2003: alloc fixes
  * 	0.21: 12 Jan 2004: additional alloc fix, nic polling fix.
  *	0.22: 19 Jan 2004: reprogram timer to a sane rate, avoid lockup
- * 			   on close.
- * 				(C) Carl-Daniel Hailfinger, Manfred Spraul
+ *			   on close.
  *	0.23: 26 Jan 2004: various small cleanups
  *	0.24: 27 Feb 2004: make driver even less anonymous in backtraces
  *	0.25: 09 Mar 2004: wol support
+ *	0.26: 03 Jun 2004: netdriver specific annotation, sparse-related fixes
+ *	0.27: 19 Jun 2004: Gigabit support, new descriptor rings,
+ *			   added CK804/MCP04 device IDs, code fixes
+ *			   for registers, link status and other minor fixes.
+ *	0.28: 21 Jun 2004: Big cleanup, making driver mostly endian safe
  *
  * Known bugs:
  * We suspect that on some hardware no TX done interrupts are generated.
@@ -80,7 +86,8 @@
  * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few
  * superfluous timer interrupts from the nic.
  */
-#define FORCEDETH_VERSION		"0.25"
+#define FORCEDETH_VERSION		"0.28a"
+#define DRV_NAME			"forcedeth"
 
 #include <linux/module.h>
 #include <linux/types.h>
@@ -117,12 +124,14 @@
 #define DEV_IRQMASK_1		0x0002
 #define DEV_IRQMASK_2		0x0004
 #define DEV_NEED_TIMERIRQ	0x0008
+#define DEV_NEED_LINKTIMER	0x0010
 
 enum {
 	NvRegIrqStatus = 0x000,
 #define NVREG_IRQSTAT_MIIEVENT	0x040
 #define NVREG_IRQSTAT_MASK		0x1ff
 	NvRegIrqMask = 0x004,
+#define NVREG_IRQ_RX_ERROR		0x0001
 #define NVREG_IRQ_RX			0x0002
 #define NVREG_IRQ_RX_NOBUF		0x0004
 #define NVREG_IRQ_TX_ERR		0x0008
@@ -132,7 +141,7 @@ enum {
 #define NVREG_IRQ_TX1			0x0100
 #define NVREG_IRQMASK_WANTED_1		0x005f
 #define NVREG_IRQMASK_WANTED_2		0x0147
-#define NVREG_IRQ_UNKNOWN		(~(NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_TX_ERR|NVREG_IRQ_TX2|NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_TX1))
+#define NVREG_IRQ_UNKNOWN		(~(NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_TX_ERR|NVREG_IRQ_TX2|NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_TX1))
 
 	NvRegUnknownSetupReg6 = 0x008,
 #define NVREG_UNKSETUP6_VAL		3
@@ -159,7 +168,7 @@ enum {
 
 	NvRegOffloadConfig = 0x90,
 #define NVREG_OFFLOAD_HOMEPHY	0x601
-#define NVREG_OFFLOAD_NORMAL	0x5ee
+#define NVREG_OFFLOAD_NORMAL	RX_NIC_BUFSIZE
 	NvRegReceiverControl = 0x094,
 #define NVREG_RCVCTL_START	0x01
 	NvRegReceiverStatus = 0x98,
@@ -168,6 +177,8 @@ enum {
 	NvRegRandomSeed = 0x9c,
 #define NVREG_RNDSEED_MASK	0x00ff
 #define NVREG_RNDSEED_FORCE	0x7f00
+#define NVREG_RNDSEED_FORCE2	0x2d00
+#define NVREG_RNDSEED_FORCE3	0x7400
 
 	NvRegUnknownSetupReg1 = 0xA0,
 #define NVREG_UNKSETUP1_VAL	0x16070f
@@ -181,6 +192,9 @@ enum {
 	NvRegMulticastMaskA = 0xB8,
 	NvRegMulticastMaskB = 0xBC,
 
+	NvRegPhyInterface = 0xC0,
+#define PHY_RGMII		0x10000000
+
 	NvRegTxRingPhysAddr = 0x100,
 	NvRegRxRingPhysAddr = 0x104,
 	NvRegRingSizes = 0x108,
@@ -189,12 +203,12 @@ enum {
 	NvRegUnknownTransmitterReg = 0x10c,
 	NvRegLinkSpeed = 0x110,
 #define NVREG_LINKSPEED_FORCE 0x10000
-#define NVREG_LINKSPEED_10	10
+#define NVREG_LINKSPEED_10	1000
 #define NVREG_LINKSPEED_100	100
-#define NVREG_LINKSPEED_1000	1000
+#define NVREG_LINKSPEED_1000	50
 	NvRegUnknownSetupReg5 = 0x130,
 #define NVREG_UNKSETUP5_BIT31	(1<<31)
-	NvRegUnknownSetupReg3 = 0x134,
+	NvRegUnknownSetupReg3 = 0x13c,
 #define NVREG_UNKSETUP3_VAL1	0x200010
 	NvRegTxRxControl = 0x144,
 #define NVREG_TXRXCTL_KICK	0x0001
@@ -213,15 +227,15 @@ enum {
 	NvRegAdapterControl = 0x188,
 #define NVREG_ADAPTCTL_START	0x02
 #define NVREG_ADAPTCTL_LINKUP	0x04
-#define NVREG_ADAPTCTL_PHYVALID	0x4000
+#define NVREG_ADAPTCTL_PHYVALID	0x40000
 #define NVREG_ADAPTCTL_RUNNING	0x100000
 #define NVREG_ADAPTCTL_PHYSHIFT	24
 	NvRegMIISpeed = 0x18c,
 #define NVREG_MIISPEED_BIT8	(1<<8)
 #define NVREG_MIIDELAY	5
 	NvRegMIIControl = 0x190,
-#define NVREG_MIICTL_INUSE	0x10000
-#define NVREG_MIICTL_WRITE	0x08000
+#define NVREG_MIICTL_INUSE	0x08000
+#define NVREG_MIICTL_WRITE	0x00400
 #define NVREG_MIICTL_ADDRSHIFT	5
 	NvRegMIIData = 0x194,
 	NvRegWakeUpFlags = 0x200,
@@ -253,34 +267,63 @@ enum {
 #define NVREG_POWERSTATE_D3		0x0003
 };
 
+/* Big endian: should work, but is untested */
 struct ring_desc {
 	u32 PacketBuffer;
-	u16 Length;
-	u16 Flags;
+	u32 FlagLen;
 };
 
-#define NV_TX_LASTPACKET	(1<<0)
-#define NV_TX_RETRYERROR	(1<<3)
-#define NV_TX_LASTPACKET1	(1<<8)
-#define NV_TX_DEFERRED		(1<<10)
-#define NV_TX_CARRIERLOST	(1<<11)
-#define NV_TX_LATECOLLISION	(1<<12)
-#define NV_TX_UNDERFLOW		(1<<13)
-#define NV_TX_ERROR		(1<<14)
-#define NV_TX_VALID		(1<<15)
-
-#define NV_RX_DESCRIPTORVALID	(1<<0)
-#define NV_RX_MISSEDFRAME	(1<<1)
-#define NV_RX_SUBSTRACT1	(1<<3)
-#define NV_RX_ERROR1		(1<<7)
-#define NV_RX_ERROR2		(1<<8)
-#define NV_RX_ERROR3		(1<<9)
-#define NV_RX_ERROR4		(1<<10)
-#define NV_RX_CRCERR		(1<<11)
-#define NV_RX_OVERFLOW		(1<<12)
-#define NV_RX_FRAMINGERR	(1<<13)
-#define NV_RX_ERROR		(1<<14)
-#define NV_RX_AVAIL		(1<<15)
+#define FLAG_MASK_V1 0xffff0000
+#define FLAG_MASK_V2 0xffffc000
+#define LEN_MASK_V1 (0xffffffff ^ FLAG_MASK_V1)
+#define LEN_MASK_V2 (0xffffffff ^ FLAG_MASK_V2)
+
+#define NV_TX_LASTPACKET	(1<<16)
+#define NV_TX_RETRYERROR	(1<<19)
+#define NV_TX_LASTPACKET1	(1<<24)
+#define NV_TX_DEFERRED		(1<<26)
+#define NV_TX_CARRIERLOST	(1<<27)
+#define NV_TX_LATECOLLISION	(1<<28)
+#define NV_TX_UNDERFLOW		(1<<29)
+#define NV_TX_ERROR		(1<<30)
+#define NV_TX_VALID		(1<<31)
+
+#define NV_TX2_LASTPACKET	(1<<29)
+#define NV_TX2_RETRYERROR	(1<<18)
+#define NV_TX2_LASTPACKET1	(1<<23)
+#define NV_TX2_DEFERRED		(1<<25)
+#define NV_TX2_CARRIERLOST	(1<<26)
+#define NV_TX2_LATECOLLISION	(1<<27)
+#define NV_TX2_UNDERFLOW	(1<<28)
+/* error and valid are the same for both */
+#define NV_TX2_ERROR		(1<<30)
+#define NV_TX2_VALID		(1<<31)
+
+#define NV_RX_DESCRIPTORVALID	(1<<16)
+#define NV_RX_MISSEDFRAME	(1<<17)
+#define NV_RX_SUBSTRACT1	(1<<18)
+#define NV_RX_ERROR1		(1<<23)
+#define NV_RX_ERROR2		(1<<24)
+#define NV_RX_ERROR3		(1<<25)
+#define NV_RX_ERROR4		(1<<26)
+#define NV_RX_CRCERR		(1<<27)
+#define NV_RX_OVERFLOW		(1<<28)
+#define NV_RX_FRAMINGERR	(1<<29)
+#define NV_RX_ERROR		(1<<30)
+#define NV_RX_AVAIL		(1<<31)
+
+#define NV_RX2_DESCRIPTORVALID	(1<<29)
+#define NV_RX2_SUBSTRACT1	(1<<25)
+#define NV_RX2_ERROR1		(1<<18)
+#define NV_RX2_ERROR2		(1<<19)
+#define NV_RX2_ERROR3		(1<<20)
+#define NV_RX2_ERROR4		(1<<21)
+#define NV_RX2_CRCERR		(1<<22)
+#define NV_RX2_OVERFLOW		(1<<23)
+#define NV_RX2_FRAMINGERR	(1<<24)
+/* error and avail are the same for both */
+#define NV_RX2_ERROR		(1<<30)
+#define NV_RX2_AVAIL		(1<<31)
 
 /* Miscelaneous hardware related defines: */
 #define NV_PCI_REGSZ		0x270
@@ -306,28 +349,67 @@ struct ring_desc {
 
 /* General driver defaults */
 #define NV_WATCHDOG_TIMEO	(5*HZ)
-#define DEFAULT_MTU		1500	/* also maximum supported, at least for now */
 
 #define RX_RING		128
-#define TX_RING		16
-/* limited to 1 packet until we understand NV_TX_LASTPACKET */
-#define TX_LIMIT_STOP	10
-#define TX_LIMIT_START	5
+#define TX_RING		64
+/* 
+ * If your nic mysteriously hangs then try to reduce the limits
+ * to 1/0: It might be required to set NV_TX_LASTPACKET in the
+ * last valid ring entry. But this would be impossible to
+ * implement - probably a disassembly error.
+ */
+#define TX_LIMIT_STOP	63
+#define TX_LIMIT_START	62
 
 /* rx/tx mac addr + type + vlan + align + slack*/
-#define RX_NIC_BUFSIZE		(DEFAULT_MTU + 64)
+#define RX_NIC_BUFSIZE		(ETH_DATA_LEN + 64)
 /* even more slack */
-#define RX_ALLOC_BUFSIZE	(DEFAULT_MTU + 128)
+#define RX_ALLOC_BUFSIZE	(ETH_DATA_LEN + 128)
 
 #define OOM_REFILL	(1+HZ/20)
 #define POLL_WAIT	(1+HZ/100)
+#define LINK_TIMEOUT	(3*HZ)
+
+#define DESC_VER_1	0x0
+#define DESC_VER_2	0x02100
+
+/* PHY defines */
+#define PHY_OUI_MARVELL	0x5043
+#define PHY_OUI_CICADA	0x03f1
+#define PHYID1_OUI_MASK	0x03ff
+#define PHYID1_OUI_SHFT	6
+#define PHYID2_OUI_MASK	0xfc00
+#define PHYID2_OUI_SHFT	10
+#define PHY_INIT1	0x0f000
+#define PHY_INIT2	0x0e00
+#define PHY_INIT3	0x01000
+#define PHY_INIT4	0x0200
+#define PHY_INIT5	0x0004
+#define PHY_INIT6	0x02000
+#define PHY_GIGABIT	0x0100
+
+#define PHY_TIMEOUT	0x1
+#define PHY_ERROR	0x2
+
+#define PHY_100	0x1
+#define PHY_1000	0x2
+#define PHY_HALF	0x100
+
+/* FIXME: MII defines that should be added to <linux/mii.h> */
+#define MII_1000BT_CR	0x09
+#define MII_1000BT_SR	0x0a
+#define ADVERTISE_1000FULL	0x0200
+#define ADVERTISE_1000HALF	0x0100
+#define LPA_1000FULL	0x0800
+#define LPA_1000HALF	0x0400
+
 
 /*
  * SMP locking:
  * All hardware access under dev->priv->lock, except the performance
  * critical parts:
  * - rx is (pseudo-) lockless: it relies on the single-threading provided
- * 	by the arch code for interrupts.
+ *	by the arch code for interrupts.
  * - tx setup is lockless: it relies on dev->xmit_lock. Actual submission
  *	needs dev->priv->lock :-(
  * - set_multicast_list: preparation lockless, relies on dev->xmit_lock.
@@ -345,12 +427,15 @@ struct fe_priv {
 	int duplex;
 	int phyaddr;
 	int wolenabled;
+	unsigned int phy_oui;
+	u16 gigabit;
 
 	/* General data: RO fields */
 	dma_addr_t ring_addr;
 	struct pci_dev *pci_dev;
 	u32 orig_mac[2];
 	u32 irqmask;
+	u32 desc_ver;
 
 	/* rx specific fields.
 	 * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
@@ -363,6 +448,11 @@ struct fe_priv {
 	struct timer_list oom_kick;
 	struct timer_list nic_poll;
 
+	/* media detection workaround.
+	 * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
+	 */
+	int need_linktimer;
+	unsigned long link_timeout;
 	/*
 	 * tx specific fields.
 	 */
@@ -370,7 +460,7 @@ struct fe_priv {
 	unsigned int next_tx, nic_tx;
 	struct sk_buff *tx_skbuff[TX_RING];
 	dma_addr_t tx_dma[TX_RING];
-	u16 tx_flags;
+	u32 tx_flags;
 };
 
 /*
@@ -395,6 +485,12 @@ static inline void pci_push(u8 * base)
 	readl(base);
 }
 
+static inline u32 nv_descr_getlength(struct ring_desc *prd, u32 v)
+{
+	return le32_to_cpu(prd->FlagLen)
+		& ((v == DESC_VER_1) ? LEN_MASK_V1 : LEN_MASK_V2);
+}
+
 static int reg_delay(struct net_device *dev, int offset, u32 mask, u32 target,
 				int delay, int delaymax, const char *msg)
 {
@@ -421,24 +517,18 @@ static int reg_delay(struct net_device *
 static int mii_rw(struct net_device *dev, int addr, int miireg, int value)
 {
 	u8 *base = get_hwbase(dev);
-	int was_running;
 	u32 reg;
 	int retval;
 
 	writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
-	was_running = 0;
-	reg = readl(base + NvRegAdapterControl);
-	if (reg & NVREG_ADAPTCTL_RUNNING) {
-		was_running = 1;
-		writel(reg & ~NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl);
-	}
+
 	reg = readl(base + NvRegMIIControl);
 	if (reg & NVREG_MIICTL_INUSE) {
 		writel(NVREG_MIICTL_INUSE, base + NvRegMIIControl);
 		udelay(NV_MIIBUSY_DELAY);
 	}
 
-	reg = NVREG_MIICTL_INUSE | (addr << NVREG_MIICTL_ADDRSHIFT) | miireg;
+	reg = (addr << NVREG_MIICTL_ADDRSHIFT) | miireg;
 	if (value != MII_READ) {
 		writel(value, base + NvRegMIIData);
 		reg |= NVREG_MIICTL_WRITE;
@@ -460,19 +550,117 @@ static int mii_rw(struct net_device *dev
 				dev->name, miireg, addr);
 		retval = -1;
 	} else {
-		/* FIXME: why is that required? */
-		udelay(50);
 		retval = readl(base + NvRegMIIData);
 		dprintk(KERN_DEBUG "%s: mii_rw read from reg %d at PHY %d: 0x%x.\n",
 				dev->name, miireg, addr, retval);
 	}
-	if (was_running) {
-		reg = readl(base + NvRegAdapterControl);
-		writel(reg | NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl);
-	}
+
 	return retval;
 }
 
+static int phy_reset(struct net_device *dev)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+	u32 miicontrol;
+	unsigned int tries = 0;
+
+	miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+	miicontrol |= BMCR_RESET;
+	if (mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol)) {
+		return -1;
+	}
+
+	/* wait for 500ms */
+	msleep(500);
+
+	/* must wait till reset is deasserted */
+	while (miicontrol & BMCR_RESET) {
+		msleep(10);
+		miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+		/* FIXME: 100 tries seem excessive */
+		if (tries++ > 100)
+			return -1;
+	}
+	return 0;
+}
+
+static int phy_init(struct net_device *dev)
+{
+	struct fe_priv *np = get_nvpriv(dev);
+	u8 *base = get_hwbase(dev);
+	u32 phyinterface, phy_reserved, mii_status, mii_control, mii_control_1000,reg;
+
+	/* set advertise register */
+	reg = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
+	reg |= (ADVERTISE_10HALF|ADVERTISE_10FULL|ADVERTISE_100HALF|ADVERTISE_100FULL|0x800|0x400);
+	if (mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg)) {
+		printk(KERN_INFO "%s: phy write to advertise failed.\n", pci_name(np->pci_dev));
+		return PHY_ERROR;
+	}
+
+	/* get phy interface type */
+	phyinterface = readl(base + NvRegPhyInterface);
+
+	/* see if gigabit phy */
+	mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+	if (mii_status & PHY_GIGABIT) {
+		np->gigabit = PHY_GIGABIT;
+		mii_control_1000 = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ);
+		mii_control_1000 &= ~ADVERTISE_1000HALF;
+		if (phyinterface & PHY_RGMII)
+			mii_control_1000 |= ADVERTISE_1000FULL;
+		else
+			mii_control_1000 &= ~ADVERTISE_1000FULL;
+
+		if (mii_rw(dev, np->phyaddr, MII_1000BT_CR, mii_control_1000)) {
+			printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
+			return PHY_ERROR;
+		}
+	}
+	else
+		np->gigabit = 0;
+
+	/* reset the phy */
+	if (phy_reset(dev)) {
+		printk(KERN_INFO "%s: phy reset failed\n", pci_name(np->pci_dev));
+		return PHY_ERROR;
+	}
+
+	/* phy vendor specific configuration */
+	if ((np->phy_oui == PHY_OUI_CICADA) && (phyinterface & PHY_RGMII) ) {
+		phy_reserved = mii_rw(dev, np->phyaddr, MII_RESV1, MII_READ);
+		phy_reserved &= ~(PHY_INIT1 | PHY_INIT2);
+		phy_reserved |= (PHY_INIT3 | PHY_INIT4);
+		if (mii_rw(dev, np->phyaddr, MII_RESV1, phy_reserved)) {
+			printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
+			return PHY_ERROR;
+		}
+		phy_reserved = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
+		phy_reserved |= PHY_INIT5;
+		if (mii_rw(dev, np->phyaddr, MII_NCONFIG, phy_reserved)) {
+			printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
+			return PHY_ERROR;
+		}
+	}
+	if (np->phy_oui == PHY_OUI_CICADA) {
+		phy_reserved = mii_rw(dev, np->phyaddr, MII_SREVISION, MII_READ);
+		phy_reserved |= PHY_INIT6;
+		if (mii_rw(dev, np->phyaddr, MII_SREVISION, phy_reserved)) {
+			printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
+			return PHY_ERROR;
+		}
+	}
+
+	/* restart auto negotiation */
+	mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
+	mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE);
+	if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) {
+		return PHY_ERROR;
+	}
+
+	return 0;
+}
+
 static void nv_start_rx(struct net_device *dev)
 {
 	struct fe_priv *np = get_nvpriv(dev);
@@ -487,6 +675,8 @@ static void nv_start_rx(struct net_devic
 	writel(np->linkspeed, base + NvRegLinkSpeed);
 	pci_push(base);
 	writel(NVREG_RCVCTL_START, base + NvRegReceiverControl);
+	dprintk(KERN_DEBUG "%s: nv_start_rx to duplex %d, speed 0x%08x.\n",
+				dev->name, np->duplex, np->linkspeed);
 	pci_push(base);
 }
 
@@ -497,8 +687,8 @@ static void nv_stop_rx(struct net_device
 	dprintk(KERN_DEBUG "%s: nv_stop_rx\n", dev->name);
 	writel(0, base + NvRegReceiverControl);
 	reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0,
-		       NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX,
-		       KERN_INFO "nv_stop_rx: ReceiverStatus remained busy");
+			NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX,
+			KERN_INFO "nv_stop_rx: ReceiverStatus remained busy");
 
 	udelay(NV_RXSTOP_DELAY2);
 	writel(0, base + NvRegLinkSpeed);
@@ -520,8 +710,8 @@ static void nv_stop_tx(struct net_device
 	dprintk(KERN_DEBUG "%s: nv_stop_tx\n", dev->name);
 	writel(0, base + NvRegTransmitterControl);
 	reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0,
-		       NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX,
-		       KERN_INFO "nv_stop_tx: TransmitterStatus remained busy");
+			NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX,
+			KERN_INFO "nv_stop_tx: TransmitterStatus remained busy");
 
 	udelay(NV_TXSTOP_DELAY2);
 	writel(0, base + NvRegUnknownTransmitterReg);
@@ -529,13 +719,14 @@ static void nv_stop_tx(struct net_device
 
 static void nv_txrx_reset(struct net_device *dev)
 {
+	struct fe_priv *np = get_nvpriv(dev);
 	u8 *base = get_hwbase(dev);
 
 	dprintk(KERN_DEBUG "%s: nv_txrx_reset\n", dev->name);
-	writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET, base + NvRegTxRxControl);
+	writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->desc_ver, base + NvRegTxRxControl);
 	pci_push(base);
 	udelay(NV_TXRX_RESET_DELAY);
-	writel(NVREG_TXRXCTL_BIT2, base + NvRegTxRxControl);
+	writel(NVREG_TXRXCTL_BIT2 | np->desc_ver, base + NvRegTxRxControl);
 	pci_push(base);
 }
 
@@ -650,11 +841,12 @@ static int nv_alloc_rx(struct net_device
 {
 	struct fe_priv *np = get_nvpriv(dev);
 	unsigned int refill_rx = np->refill_rx;
+	int nr;
 
 	while (np->cur_rx != refill_rx) {
-		int nr = refill_rx % RX_RING;
 		struct sk_buff *skb;
 
+		nr = refill_rx % RX_RING;
 		if (np->rx_skbuff[nr] == NULL) {
 
 			skb = dev_alloc_skb(RX_ALLOC_BUFSIZE);
@@ -669,10 +861,9 @@ static int nv_alloc_rx(struct net_device
 		np->rx_dma[nr] = pci_map_single(np->pci_dev, skb->data, skb->len,
 						PCI_DMA_FROMDEVICE);
 		np->rx_ring[nr].PacketBuffer = cpu_to_le32(np->rx_dma[nr]);
-		np->rx_ring[nr].Length = cpu_to_le16(RX_NIC_BUFSIZE);
 		wmb();
-		np->rx_ring[nr].Flags = cpu_to_le16(NV_RX_AVAIL);
-		dprintk(KERN_DEBUG "%s: nv_alloc_rx: Packet  %d marked as Available\n",
+		np->rx_ring[nr].FlagLen = cpu_to_le32(RX_NIC_BUFSIZE | NV_RX_AVAIL);
+		dprintk(KERN_DEBUG "%s: nv_alloc_rx: Packet %d marked as Available\n",
 					dev->name, refill_rx);
 		refill_rx++;
 	}
@@ -703,15 +894,13 @@ static int nv_init_ring(struct net_devic
 	int i;
 
 	np->next_tx = np->nic_tx = 0;
-	for (i = 0; i < TX_RING; i++) {
-		np->tx_ring[i].Flags = 0;
-	}
+	for (i = 0; i < TX_RING; i++)
+		np->tx_ring[i].FlagLen = 0;
 
 	np->cur_rx = RX_RING;
 	np->refill_rx = 0;
-	for (i = 0; i < RX_RING; i++) {
-		np->rx_ring[i].Flags = 0;
-	}
+	for (i = 0; i < RX_RING; i++)
+		np->rx_ring[i].FlagLen = 0;
 	return nv_alloc_rx(dev);
 }
 
@@ -720,7 +909,7 @@ static void nv_drain_tx(struct net_devic
 	struct fe_priv *np = get_nvpriv(dev);
 	int i;
 	for (i = 0; i < TX_RING; i++) {
-		np->tx_ring[i].Flags = 0;
+		np->tx_ring[i].FlagLen = 0;
 		if (np->tx_skbuff[i]) {
 			pci_unmap_single(np->pci_dev, np->tx_dma[i],
 						np->tx_skbuff[i]->len,
@@ -737,7 +926,7 @@ static void nv_drain_rx(struct net_devic
 	struct fe_priv *np = get_nvpriv(dev);
 	int i;
 	for (i = 0; i < RX_RING; i++) {
-		np->rx_ring[i].Flags = 0;
+		np->rx_ring[i].FlagLen = 0;
 		wmb();
 		if (np->rx_skbuff[i]) {
 			pci_unmap_single(np->pci_dev, np->rx_dma[i],
@@ -769,11 +958,10 @@ static int nv_start_xmit(struct sk_buff 
 					PCI_DMA_TODEVICE);
 
 	np->tx_ring[nr].PacketBuffer = cpu_to_le32(np->tx_dma[nr]);
-	np->tx_ring[nr].Length = cpu_to_le16(skb->len-1);
 
 	spin_lock_irq(&np->lock);
 	wmb();
-	np->tx_ring[nr].Flags = np->tx_flags;
+	np->tx_ring[nr].FlagLen = cpu_to_le32( (skb->len-1) | np->tx_flags );
 	dprintk(KERN_DEBUG "%s: nv_start_xmit: packet packet %d queued for transmission.\n",
 				dev->name, np->next_tx);
 	{
@@ -792,7 +980,7 @@ static int nv_start_xmit(struct sk_buff 
 	if (np->next_tx - np->nic_tx >= TX_LIMIT_STOP)
 		netif_stop_queue(dev);
 	spin_unlock_irq(&np->lock);
-	writel(NVREG_TXRXCTL_KICK, get_hwbase(dev) + NvRegTxRxControl);
+	writel(NVREG_TXRXCTL_KICK|np->desc_ver, get_hwbase(dev) + NvRegTxRxControl);
 	pci_push(get_hwbase(dev));
 	return 0;
 }
@@ -805,27 +993,42 @@ static int nv_start_xmit(struct sk_buff 
 static void nv_tx_done(struct net_device *dev)
 {
 	struct fe_priv *np = get_nvpriv(dev);
+	u32 Flags;
+	int i;
 
-	while (np->nic_tx < np->next_tx) {
-		struct ring_desc *prd;
-		int i = np->nic_tx % TX_RING;
+	while (np->nic_tx != np->next_tx) {
+		i = np->nic_tx % TX_RING;
 
-		prd = &np->tx_ring[i];
+		Flags = le32_to_cpu(np->tx_ring[i].FlagLen);
 
 		dprintk(KERN_DEBUG "%s: nv_tx_done: looking at packet %d, Flags 0x%x.\n",
-					dev->name, np->nic_tx, prd->Flags);
-		if (prd->Flags & cpu_to_le16(NV_TX_VALID))
+					dev->name, np->nic_tx, Flags);
+		if (Flags & NV_TX_VALID)
 			break;
-		if (prd->Flags & cpu_to_le16(NV_TX_RETRYERROR|NV_TX_CARRIERLOST|NV_TX_LATECOLLISION|
-						NV_TX_UNDERFLOW|NV_TX_ERROR)) {
-			if (prd->Flags & cpu_to_le16(NV_TX_UNDERFLOW))
-				np->stats.tx_fifo_errors++;
-			if (prd->Flags & cpu_to_le16(NV_TX_CARRIERLOST))
-				np->stats.tx_carrier_errors++;
-			np->stats.tx_errors++;
+		if (np->desc_ver == DESC_VER_1) {
+			if (Flags & (NV_TX_RETRYERROR|NV_TX_CARRIERLOST|NV_TX_LATECOLLISION|
+							NV_TX_UNDERFLOW|NV_TX_ERROR)) {
+				if (Flags & NV_TX_UNDERFLOW)
+					np->stats.tx_fifo_errors++;
+				if (Flags & NV_TX_CARRIERLOST)
+					np->stats.tx_carrier_errors++;
+				np->stats.tx_errors++;
+			} else {
+				np->stats.tx_packets++;
+				np->stats.tx_bytes += np->tx_skbuff[i]->len;
+			}
 		} else {
-			np->stats.tx_packets++;
-			np->stats.tx_bytes += np->tx_skbuff[i]->len;
+			if (Flags & (NV_TX2_RETRYERROR|NV_TX2_CARRIERLOST|NV_TX2_LATECOLLISION|
+							NV_TX2_UNDERFLOW|NV_TX2_ERROR)) {
+				if (Flags & NV_TX2_UNDERFLOW)
+					np->stats.tx_fifo_errors++;
+				if (Flags & NV_TX2_CARRIERLOST)
+					np->stats.tx_carrier_errors++;
+				np->stats.tx_errors++;
+			} else {
+				np->stats.tx_packets++;
+				np->stats.tx_bytes += np->tx_skbuff[i]->len;
+			}
 		}
 		pci_unmap_single(np->pci_dev, np->tx_dma[i],
 					np->tx_skbuff[i]->len,
@@ -875,9 +1078,9 @@ static void nv_tx_timeout(struct net_dev
 static void nv_rx_process(struct net_device *dev)
 {
 	struct fe_priv *np = get_nvpriv(dev);
+	u32 Flags;
 
 	for (;;) {
-		struct ring_desc *prd;
 		struct sk_buff *skb;
 		int len;
 		int i;
@@ -885,11 +1088,13 @@ static void nv_rx_process(struct net_dev
 			break;	/* we scanned the whole ring - do not continue */
 
 		i = np->cur_rx % RX_RING;
-		prd = &np->rx_ring[i];
+		Flags = le32_to_cpu(np->rx_ring[i].FlagLen);
+		len = nv_descr_getlength(&np->rx_ring[i], np->desc_ver);
+
 		dprintk(KERN_DEBUG "%s: nv_rx_process: looking at packet %d, Flags 0x%x.\n",
-					dev->name, np->cur_rx, prd->Flags);
+					dev->name, np->cur_rx, Flags);
 
-		if (prd->Flags & cpu_to_le16(NV_RX_AVAIL))
+		if (Flags & NV_RX_AVAIL)
 			break;	/* still owned by hardware, */
 
 		/*
@@ -903,7 +1108,7 @@ static void nv_rx_process(struct net_dev
 
 		{
 			int j;
-			dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",prd->Flags);
+			dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",Flags);
 			for (j=0; j<64; j++) {
 				if ((j%16) == 0)
 					dprintk("\n%03x:", j);
@@ -912,41 +1117,69 @@ static void nv_rx_process(struct net_dev
 			dprintk("\n");
 		}
 		/* look at what we actually got: */
-		if (!(prd->Flags & cpu_to_le16(NV_RX_DESCRIPTORVALID)))
-			goto next_pkt;
-
-
-		len = le16_to_cpu(prd->Length);
+		if (np->desc_ver == DESC_VER_1) {
+			if (!(Flags & NV_RX_DESCRIPTORVALID))
+				goto next_pkt;
 
-		if (prd->Flags & cpu_to_le16(NV_RX_MISSEDFRAME)) {
-			np->stats.rx_missed_errors++;
-			np->stats.rx_errors++;
-			goto next_pkt;
-		}
-		if (prd->Flags & cpu_to_le16(NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3|NV_RX_ERROR4)) {
-			np->stats.rx_errors++;
-			goto next_pkt;
-		}
-		if (prd->Flags & cpu_to_le16(NV_RX_CRCERR)) {
-			np->stats.rx_crc_errors++;
-			np->stats.rx_errors++;
-			goto next_pkt;
-		}
-		if (prd->Flags & cpu_to_le16(NV_RX_OVERFLOW)) {
-			np->stats.rx_over_errors++;
-			np->stats.rx_errors++;
-			goto next_pkt;
-		}
-		if (prd->Flags & cpu_to_le16(NV_RX_ERROR)) {
-			/* framing errors are soft errors, the rest is fatal. */
-			if (prd->Flags & cpu_to_le16(NV_RX_FRAMINGERR)) {
-				if (prd->Flags & cpu_to_le16(NV_RX_SUBSTRACT1)) {
-					len--;
+			if (Flags & NV_RX_MISSEDFRAME) {
+				np->stats.rx_missed_errors++;
+				np->stats.rx_errors++;
+				goto next_pkt;
+			}
+			if (Flags & (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3|NV_RX_ERROR4)) {
+				np->stats.rx_errors++;
+				goto next_pkt;
+			}
+			if (Flags & NV_RX_CRCERR) {
+				np->stats.rx_crc_errors++;
+				np->stats.rx_errors++;
+				goto next_pkt;
+			}
+			if (Flags & NV_RX_OVERFLOW) {
+				np->stats.rx_over_errors++;
+				np->stats.rx_errors++;
+				goto next_pkt;
+			}
+			if (Flags & NV_RX_ERROR) {
+				/* framing errors are soft errors, the rest is fatal. */
+				if (Flags & NV_RX_FRAMINGERR) {
+					if (Flags & NV_RX_SUBSTRACT1) {
+						len--;
+					}
+				} else {
+					np->stats.rx_errors++;
+					goto next_pkt;
 				}
-			} else {
+			}
+		} else {
+			if (!(Flags & NV_RX2_DESCRIPTORVALID))
+				goto next_pkt;
+
+			if (Flags & (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3|NV_RX2_ERROR4)) {
+				np->stats.rx_errors++;
+				goto next_pkt;
+			}
+			if (Flags & NV_RX2_CRCERR) {
+				np->stats.rx_crc_errors++;
+				np->stats.rx_errors++;
+				goto next_pkt;
+			}
+			if (Flags & NV_RX2_OVERFLOW) {
+				np->stats.rx_over_errors++;
 				np->stats.rx_errors++;
 				goto next_pkt;
 			}
+			if (Flags & NV_RX2_ERROR) {
+				/* framing errors are soft errors, the rest is fatal. */
+				if (Flags & NV_RX2_FRAMINGERR) {
+					if (Flags & NV_RX2_SUBSTRACT1) {
+						len--;
+					}
+				} else {
+					np->stats.rx_errors++;
+					goto next_pkt;
+				}
+			}
 		}
 		/* got a valid packet - forward it to the network core */
 		skb = np->rx_skbuff[i];
@@ -971,7 +1204,7 @@ next_pkt:
  */
 static int nv_change_mtu(struct net_device *dev, int new_mtu)
 {
-	if (new_mtu > DEFAULT_MTU)
+	if (new_mtu > ETH_DATA_LEN)
 		return -EINVAL;
 	dev->mtu = new_mtu;
 	return 0;
@@ -1035,6 +1268,8 @@ static void nv_set_multicast(struct net_
 	writel(mask[0], base + NvRegMulticastMaskA);
 	writel(mask[1], base + NvRegMulticastMaskB);
 	writel(pff, base + NvRegPacketFilterFlags);
+	dprintk(KERN_INFO "%s: reconfiguration for multicast lists.\n",
+		dev->name);
 	nv_start_rx(dev);
 	spin_unlock_irq(&np->lock);
 }
@@ -1042,16 +1277,62 @@ static void nv_set_multicast(struct net_
 static int nv_update_linkspeed(struct net_device *dev)
 {
 	struct fe_priv *np = get_nvpriv(dev);
-	int adv, lpa, newls, newdup;
+	u8 *base = get_hwbase(dev);
+	int adv, lpa;
+	int newls = np->linkspeed;
+	int newdup = np->duplex;
+	int mii_status;
+	int retval = 0;
+	u32 control_1000, status_1000, phyreg;
+
+	/* BMSR_LSTATUS is latched, read it twice:
+	 * we want the current value.
+	 */
+	mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+	mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
+
+	if (!(mii_status & BMSR_LSTATUS)) {
+		dprintk(KERN_DEBUG "%s: no link detected by phy - falling back to 10HD.\n",
+				dev->name);
+		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
+		newdup = 0;
+		retval = 0;
+		goto set_speed;
+	}
+
+	/* check auto negotiation is complete */
+	if (!(mii_status & BMSR_ANEGCOMPLETE)) {
+		/* still in autonegotiation - configure nic for 10 MBit HD and wait. */
+		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
+		newdup = 0;
+		retval = 0;
+		dprintk(KERN_DEBUG "%s: autoneg not completed - falling back to 10HD.\n", dev->name);
+		goto set_speed;
+	}
+
+	retval = 1;
+	if (np->gigabit == PHY_GIGABIT) {
+		control_1000 = mii_rw(dev, np->phyaddr, MII_1000BT_CR, MII_READ);
+		status_1000 = mii_rw(dev, np->phyaddr, MII_1000BT_SR, MII_READ);
+
+		if ((control_1000 & ADVERTISE_1000FULL) &&
+			(status_1000 & LPA_1000FULL)) {
+		dprintk(KERN_DEBUG "%s: nv_update_linkspeed: GBit ethernet detected.\n",
+				dev->name);
+			newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_1000;
+			newdup = 1;
+			goto set_speed;
+		}
+	}
 
 	adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
 	lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ);
 	dprintk(KERN_DEBUG "%s: nv_update_linkspeed: PHY advertises 0x%04x, lpa 0x%04x.\n",
 				dev->name, adv, lpa);
 
-	/* FIXME: handle parallel detection properly, handle gigabit ethernet */
+	/* FIXME: handle parallel detection properly */
 	lpa = lpa & adv;
-	if (lpa  & LPA_100FULL) {
+	if (lpa & LPA_100FULL) {
 		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
 		newdup = 1;
 	} else if (lpa & LPA_100HALF) {
@@ -1068,47 +1349,75 @@ static int nv_update_linkspeed(struct ne
 		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
 		newdup = 0;
 	}
-	if (np->duplex != newdup || np->linkspeed != newls) {
-		np->duplex = newdup;
-		np->linkspeed = newls;
-		return 1;
-	}
-	return 0;
+
+set_speed:
+	if (np->duplex == newdup && np->linkspeed == newls)
+		return retval;
+
+	dprintk(KERN_INFO "%s: changing link setting from %d/%d to %d/%d.\n",
+			dev->name, np->linkspeed, np->duplex, newls, newdup);
+
+	np->duplex = newdup;
+	np->linkspeed = newls;
+
+	if (np->gigabit == PHY_GIGABIT) {
+		phyreg = readl(base + NvRegRandomSeed);
+		phyreg &= ~(0x3FF00);
+		if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10)
+			phyreg |= NVREG_RNDSEED_FORCE3;
+		else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100)
+			phyreg |= NVREG_RNDSEED_FORCE2;
+		else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000)
+			phyreg |= NVREG_RNDSEED_FORCE;
+		writel(phyreg, base + NvRegRandomSeed);
+	}
+
+	phyreg = readl(base + NvRegPhyInterface);
+	phyreg &= ~(PHY_HALF|PHY_100|PHY_1000);
+	if (np->duplex == 0)
+		phyreg |= PHY_HALF;
+	if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100)
+		phyreg |= PHY_100;
+	else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000)
+		phyreg |= PHY_1000;
+	writel(phyreg, base + NvRegPhyInterface);
+
+	writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD),
+		base + NvRegMisc1);
+	pci_push(base);
+	writel(np->linkspeed, base + NvRegLinkSpeed);
+	pci_push(base);
+
+	return retval;
 }
 
 static void nv_link_irq(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
 	u8 *base = get_hwbase(dev);
 	u32 miistat;
-	int miival;
 
 	miistat = readl(base + NvRegMIIStatus);
 	writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
-	printk(KERN_DEBUG "%s: link change notification, status 0x%x.\n", dev->name, miistat);
+printk(KERN_INFO "%s: link change notification, status 0x%x.\n", dev->name, miistat);
 
-	miival = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
-	if (miival & BMSR_ANEGCOMPLETE) {
-		nv_update_linkspeed(dev);
-
-		if (netif_carrier_ok(dev)) {
-			nv_stop_rx(dev);
+	if (miistat & (NVREG_MIISTAT_LINKCHANGE)) {
+		if (nv_update_linkspeed(dev)) {
+			if (netif_carrier_ok(dev)) {
+				nv_stop_rx(dev);
+			} else {
+				netif_carrier_on(dev);
+				printk(KERN_INFO "%s: link up.\n", dev->name);
+			}
+			nv_start_rx(dev);
 		} else {
-			netif_carrier_on(dev);
-			printk(KERN_INFO "%s: link up.\n", dev->name);
-		}
-		writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD),
-					base + NvRegMisc1);
-		nv_start_rx(dev);
-	} else {
-		if (netif_carrier_ok(dev)) {
-			netif_carrier_off(dev);
-			printk(KERN_INFO "%s: link down.\n", dev->name);
-			nv_stop_rx(dev);
+			if (netif_carrier_ok(dev)) {
+				netif_carrier_off(dev);
+				printk(KERN_INFO "%s: link down.\n", dev->name);
+				nv_stop_rx(dev);
+			}
 		}
-		writel(np->linkspeed, base + NvRegLinkSpeed);
-		pci_push(base);
 	}
+	dprintk(KERN_DEBUG "%s: link change notification done.\n", dev->name);
 }
 
 static irqreturn_t nv_nic_irq(int foo, void *data, struct pt_regs *regs)
@@ -1135,7 +1444,7 @@ static irqreturn_t nv_nic_irq(int foo, v
 			spin_unlock(&np->lock);
 		}
 
-		if (events & (NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF)) {
+		if (events & (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF)) {
 			nv_rx_process(dev);
 			if (nv_alloc_rx(dev)) {
 				spin_lock(&np->lock);
@@ -1150,6 +1459,12 @@ static irqreturn_t nv_nic_irq(int foo, v
 			nv_link_irq(dev);
 			spin_unlock(&np->lock);
 		}
+		if (np->need_linktimer && time_after(jiffies, np->link_timeout)) {
+			spin_lock(&np->lock);
+			nv_link_irq(dev);
+			spin_unlock(&np->lock);
+			np->link_timeout = jiffies + LINK_TIMEOUT;
+		}
 		if (events & (NVREG_IRQ_TX_ERR)) {
 			dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
 						dev->name, events);
@@ -1157,7 +1472,7 @@ static irqreturn_t nv_nic_irq(int foo, v
 		if (events & (NVREG_IRQ_UNKNOWN)) {
 			printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
 						dev->name, events);
- 		}
+		}
 		if (i > max_interrupt_work) {
 			spin_lock(&np->lock);
 			/* disable interrupts on the nic */
@@ -1210,21 +1525,27 @@ static int nv_open(struct net_device *de
 	writel(0, base + NvRegMulticastMaskA);
 	writel(0, base + NvRegMulticastMaskB);
 	writel(0, base + NvRegPacketFilterFlags);
+
+	writel(0, base + NvRegTransmitterControl);
+	writel(0, base + NvRegReceiverControl);
+
 	writel(0, base + NvRegAdapterControl);
+
+	/* 2) initialize descriptor rings */
+	oom = nv_init_ring(dev);
+
 	writel(0, base + NvRegLinkSpeed);
 	writel(0, base + NvRegUnknownTransmitterReg);
 	nv_txrx_reset(dev);
 	writel(0, base + NvRegUnknownSetupReg6);
 
-	/* 2) initialize descriptor rings */
 	np->in_shutdown = 0;
-	oom = nv_init_ring(dev);
 
 	/* 3) set mac address */
 	{
 		u32 mac[2];
 
-		mac[0] = (dev->dev_addr[0] <<  0) + (dev->dev_addr[1] <<  8) +
+		mac[0] = (dev->dev_addr[0] << 0) + (dev->dev_addr[1] << 8) +
 				(dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24);
 		mac[1] = (dev->dev_addr[4] << 0) + (dev->dev_addr[5] << 8);
 
@@ -1232,53 +1553,31 @@ static int nv_open(struct net_device *de
 		writel(mac[1], base + NvRegMacAddrB);
 	}
 
-	/* 4) continue setup */
+	/* 4) give hw rings */
+	writel((u32) np->ring_addr, base + NvRegRxRingPhysAddr);
+	writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr);
+	writel( ((RX_RING-1) << NVREG_RINGSZ_RXSHIFT) + ((TX_RING-1) << NVREG_RINGSZ_TXSHIFT),
+		base + NvRegRingSizes);
+
+	/* 5) continue setup */
 	np->linkspeed = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
 	np->duplex = 0;
+
+	writel(np->linkspeed, base + NvRegLinkSpeed);
 	writel(NVREG_UNKSETUP3_VAL1, base + NvRegUnknownSetupReg3);
-	writel(0, base + NvRegTxRxControl);
+	writel(np->desc_ver, base + NvRegTxRxControl);
 	pci_push(base);
-	writel(NVREG_TXRXCTL_BIT1, base + NvRegTxRxControl);
+	writel(NVREG_TXRXCTL_BIT1|np->desc_ver, base + NvRegTxRxControl);
 	reg_delay(dev, NvRegUnknownSetupReg5, NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31,
 			NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX,
 			KERN_INFO "open: SetupReg5, Bit 31 remained off\n");
-	writel(0, base + NvRegUnknownSetupReg4);
-
-	/* 5) Find a suitable PHY */
-	writel(NVREG_MIISPEED_BIT8|NVREG_MIIDELAY, base + NvRegMIISpeed);
-	for (i = 1; i < 32; i++) {
-		int id1, id2;
 
-		spin_lock_irq(&np->lock);
-		id1 = mii_rw(dev, i, MII_PHYSID1, MII_READ);
-		spin_unlock_irq(&np->lock);
-		if (id1 < 0 || id1 == 0xffff)
-			continue;
-		spin_lock_irq(&np->lock);
-		id2 = mii_rw(dev, i, MII_PHYSID2, MII_READ);
-		spin_unlock_irq(&np->lock);
-		if (id2 < 0 || id2 == 0xffff)
-			continue;
-		dprintk(KERN_DEBUG "%s: open: Found PHY %04x:%04x at address %d.\n",
-				dev->name, id1, id2, i);
-		np->phyaddr = i;
-
-		spin_lock_irq(&np->lock);
-		nv_update_linkspeed(dev);
-		spin_unlock_irq(&np->lock);
-
-		break;
-	}
-	if (i == 32) {
-		printk(KERN_INFO "%s: open: failing due to lack of suitable PHY.\n",
-				dev->name);
-		ret = -EINVAL;
-		goto out_drain;
-	}
+	writel(0, base + NvRegUnknownSetupReg4);
+	writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
+	writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus);
 
 	/* 6) continue setup */
-	writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD),
-				base + NvRegMisc1);
+	writel(NVREG_MISC1_FORCE | NVREG_MISC1_HD, base + NvRegMisc1);
 	writel(readl(base + NvRegTransmitterStatus), base + NvRegTransmitterStatus);
 	writel(NVREG_PFF_ALWAYS, base + NvRegPacketFilterFlags);
 	writel(NVREG_OFFLOAD_NORMAL, base + NvRegOffloadConfig);
@@ -1290,17 +1589,12 @@ static int nv_open(struct net_device *de
 	writel(NVREG_UNKSETUP2_VAL, base + NvRegUnknownSetupReg2);
 	writel(NVREG_POLL_DEFAULT, base + NvRegPollingInterval);
 	writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
-	writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID,
+	writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID|NVREG_ADAPTCTL_RUNNING,
 			base + NvRegAdapterControl);
+	writel(NVREG_MIISPEED_BIT8|NVREG_MIIDELAY, base + NvRegMIISpeed);
 	writel(NVREG_UNKSETUP4_VAL, base + NvRegUnknownSetupReg4);
 	writel(NVREG_WAKEUPFLAGS_VAL, base + NvRegWakeUpFlags);
 
-	/* 7) start packet processing */
-	writel((u32) np->ring_addr, base + NvRegRxRingPhysAddr);
-	writel((u32) (np->ring_addr + RX_RING*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr);
-	writel( ((RX_RING-1) << NVREG_RINGSZ_RXSHIFT) + ((TX_RING-1) << NVREG_RINGSZ_TXSHIFT),
-			base + NvRegRingSizes);
-
 	i = readl(base + NvRegPowerState);
 	if ( (i & NVREG_POWERSTATE_POWEREDUP) == 0)
 		writel(NVREG_POWERSTATE_POWEREDUP|i, base + NvRegPowerState);
@@ -1308,13 +1602,9 @@ static int nv_open(struct net_device *de
 	pci_push(base);
 	udelay(10);
 	writel(readl(base + NvRegPowerState) | NVREG_POWERSTATE_VALID, base + NvRegPowerState);
-	writel(NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl);
-
 
 	writel(0, base + NvRegIrqMask);
 	pci_push(base);
-	writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
-	pci_push(base);
 	writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus);
 	writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
 	pci_push(base);
@@ -1323,6 +1613,7 @@ static int nv_open(struct net_device *de
 	if (ret)
 		goto out_drain;
 
+	/* ask for interrupts */
 	writel(np->irqmask, base + NvRegIrqMask);
 
 	spin_lock_irq(&np->lock);
@@ -1331,18 +1622,27 @@ static int nv_open(struct net_device *de
 	writel(0, base + NvRegMulticastMaskA);
 	writel(0, base + NvRegMulticastMaskB);
 	writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
+	/* One manual link speed update: Interrupts are enabled, future link
+	 * speed changes cause interrupts and are handled by nv_link_irq().
+	 */
+	{
+		u32 miistat;
+		miistat = readl(base + NvRegMIIStatus);
+		writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus);
+		dprintk(KERN_INFO "startup: got 0x%08x.\n", miistat);
+	}
+	ret = nv_update_linkspeed(dev);
 	nv_start_rx(dev);
 	nv_start_tx(dev);
 	netif_start_queue(dev);
-	if (oom)
-		mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
-	if (mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ) & BMSR_ANEGCOMPLETE) {
+	if (ret) {
 		netif_carrier_on(dev);
 	} else {
 		printk("%s: no link during initialization.\n", dev->name);
 		netif_carrier_off(dev);
 	}
-
+	if (oom)
+		mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
 	spin_unlock_irq(&np->lock);
 
 	return 0;
@@ -1424,7 +1724,7 @@ static int __devinit nv_probe(struct pci
 
 	pci_set_master(pci_dev);
 
-	err = pci_request_regions(pci_dev, dev->name);
+	err = pci_request_regions(pci_dev, DRV_NAME);
 	if (err < 0)
 		goto out_disable;
 
@@ -1447,6 +1747,14 @@ static int __devinit nv_probe(struct pci
 		goto out_relreg;
 	}
 
+	/* handle different descriptor versions */
+	if (pci_dev->device == PCI_DEVICE_ID_NVIDIA_NVENET_1 ||
+		pci_dev->device == PCI_DEVICE_ID_NVIDIA_NVENET_2 ||
+		pci_dev->device == PCI_DEVICE_ID_NVIDIA_NVENET_3)
+		np->desc_ver = DESC_VER_1;
+	else
+		np->desc_ver = DESC_VER_2;
+
 	err = -ENOMEM;
 	dev->base_addr = (unsigned long) ioremap(addr, NV_PCI_REGSZ);
 	if (!dev->base_addr)
@@ -1506,15 +1814,63 @@ static int __devinit nv_probe(struct pci
 	writel(0, base + NvRegWakeUpFlags);
 	np->wolenabled = 0;
 
-	np->tx_flags = cpu_to_le16(NV_TX_LASTPACKET|NV_TX_LASTPACKET1|NV_TX_VALID);
-	if (id->driver_data & DEV_NEED_LASTPACKET1)
-		np->tx_flags |= cpu_to_le16(NV_TX_LASTPACKET1);
+	if (np->desc_ver == DESC_VER_1) {
+		np->tx_flags = NV_TX_LASTPACKET|NV_TX_VALID;
+		if (id->driver_data & DEV_NEED_LASTPACKET1)
+			np->tx_flags |= NV_TX_LASTPACKET1;
+	} else {
+		np->tx_flags = NV_TX2_LASTPACKET|NV_TX2_VALID;
+		if (id->driver_data & DEV_NEED_LASTPACKET1)
+			np->tx_flags |= NV_TX2_LASTPACKET1;
+	}
 	if (id->driver_data & DEV_IRQMASK_1)
 		np->irqmask = NVREG_IRQMASK_WANTED_1;
 	if (id->driver_data & DEV_IRQMASK_2)
 		np->irqmask = NVREG_IRQMASK_WANTED_2;
 	if (id->driver_data & DEV_NEED_TIMERIRQ)
 		np->irqmask |= NVREG_IRQ_TIMER;
+	if (id->driver_data & DEV_NEED_LINKTIMER) {
+		np->need_linktimer = 1;
+		np->link_timeout = jiffies + LINK_TIMEOUT;
+	} else {
+		np->need_linktimer = 0;
+	}
+
+	/* find a suitable phy */
+	for (i = 1; i < 32; i++) {
+		int id1, id2;
+
+		spin_lock_irq(&np->lock);
+		id1 = mii_rw(dev, i, MII_PHYSID1, MII_READ);
+		spin_unlock_irq(&np->lock);
+		if (id1 < 0 || id1 == 0xffff)
+			continue;
+		spin_lock_irq(&np->lock);
+		id2 = mii_rw(dev, i, MII_PHYSID2, MII_READ);
+		spin_unlock_irq(&np->lock);
+		if (id2 < 0 || id2 == 0xffff)
+			continue;
+
+		id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT;
+		id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT;
+		dprintk(KERN_DEBUG "%s: open: Found PHY %04x:%04x at address %d.\n",
+				pci_name(pci_dev), id1, id2, i);
+		np->phyaddr = i;
+		np->phy_oui = id1 | id2;
+		break;
+	}
+	if (i == 32) {
+		/* PHY in isolate mode? No phy attached and user wants to
+		 * test loopback? Very odd, but can be correct.
+		 */
+		printk(KERN_INFO "%s: open: Could not find a valid PHY.\n",
+				pci_name(pci_dev));
+	}
+
+	if (i != 32) {
+		/* reset it */
+		phy_init(dev);
+	}
 
 	err = register_netdev(dev);
 	if (err) {
@@ -1569,21 +1925,77 @@ static void __devexit nv_remove(struct p
 static struct pci_device_id pci_tbl[] = {
 	{	/* nForce Ethernet Controller */
 		.vendor = PCI_VENDOR_ID_NVIDIA,
-		.device = 0x1C3,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_1,
 		.subvendor = PCI_ANY_ID,
 		.subdevice = PCI_ANY_ID,
-		.driver_data = DEV_IRQMASK_1|DEV_NEED_TIMERIRQ,
+		.driver_data = DEV_IRQMASK_1|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
 	},
 	{	/* nForce2 Ethernet Controller */
 		.vendor = PCI_VENDOR_ID_NVIDIA,
-		.device = 0x0066,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_2,
+		.subvendor = PCI_ANY_ID,
+		.subdevice = PCI_ANY_ID,
+		.driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
+	},
+	{	/* nForce3 Ethernet Controller */
+		.vendor = PCI_VENDOR_ID_NVIDIA,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_3,
+		.subvendor = PCI_ANY_ID,
+		.subdevice = PCI_ANY_ID,
+		.driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
+	},
+	{	/* nForce3 Ethernet Controller */
+		.vendor = PCI_VENDOR_ID_NVIDIA,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_4,
 		.subvendor = PCI_ANY_ID,
 		.subdevice = PCI_ANY_ID,
 		.driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
 	},
 	{	/* nForce3 Ethernet Controller */
 		.vendor = PCI_VENDOR_ID_NVIDIA,
-		.device = 0x00D6,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_5,
+		.subvendor = PCI_ANY_ID,
+		.subdevice = PCI_ANY_ID,
+		.driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+	},
+	{	/* nForce3 Ethernet Controller */
+		.vendor = PCI_VENDOR_ID_NVIDIA,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_6,
+		.subvendor = PCI_ANY_ID,
+		.subdevice = PCI_ANY_ID,
+		.driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+	},
+	{	/* nForce3 Ethernet Controller */
+		.vendor = PCI_VENDOR_ID_NVIDIA,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_7,
+		.subvendor = PCI_ANY_ID,
+		.subdevice = PCI_ANY_ID,
+		.driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+	},
+	{	/* CK804 Ethernet Controller */
+		.vendor = PCI_VENDOR_ID_NVIDIA,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_8,
+		.subvendor = PCI_ANY_ID,
+		.subdevice = PCI_ANY_ID,
+		.driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+	},
+	{	/* CK804 Ethernet Controller */
+		.vendor = PCI_VENDOR_ID_NVIDIA,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_9,
+		.subvendor = PCI_ANY_ID,
+		.subdevice = PCI_ANY_ID,
+		.driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+	},
+	{	/* MCP04 Ethernet Controller */
+		.vendor = PCI_VENDOR_ID_NVIDIA,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_10,
+		.subvendor = PCI_ANY_ID,
+		.subdevice = PCI_ANY_ID,
+		.driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
+	},
+	{	/* MCP04 Ethernet Controller */
+		.vendor = PCI_VENDOR_ID_NVIDIA,
+		.device = PCI_DEVICE_ID_NVIDIA_NVENET_11,
 		.subvendor = PCI_ANY_ID,
 		.subdevice = PCI_ANY_ID,
 		.driver_data = DEV_NEED_LASTPACKET1|DEV_IRQMASK_2|DEV_NEED_TIMERIRQ,
@@ -1610,9 +2022,9 @@ static void __exit exit_nic(void)
 	pci_unregister_driver(&driver);
 }
 
-MODULE_PARM(max_interrupt_work, "i");
+module_param(max_interrupt_work, int, 0);
 MODULE_PARM_DESC(max_interrupt_work, "forcedeth maximum events handled per interrupt");
- 
+
 MODULE_AUTHOR("Manfred Spraul <[email-masked]>");
 MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver");
 MODULE_LICENSE("GPL");
--- 2.6/include/linux/pci_ids.h	2004-08-02 21:19:11.940474352 +0200
+++ build-2.6/include/linux/pci_ids.h	2004-08-02 21:17:46.234503640 +0200
@@ -1061,21 +1061,33 @@
 #define PCI_DEVICE_ID_NVIDIA_UVTNT2		0x002D
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE	0x0035
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA	0x0036
+#define PCI_DEVICE_ID_NVIDIA_NVENET_10		0x0037
+#define PCI_DEVICE_ID_NVIDIA_NVENET_11		0x0038
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_SATA2	0x003e
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE	0x0053
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA	0x0054
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_SATA2	0x0055
+#define PCI_DEVICE_ID_NVIDIA_NVENET_8		0x0056
+#define PCI_DEVICE_ID_NVIDIA_NVENET_9		0x0057
 #define PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE	0x0065
+#define PCI_DEVICE_ID_NVIDIA_NVENET_2		0x0066
 #define PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO		0x006a
 #define PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE	0x0085
+#define PCI_DEVICE_ID_NVIDIA_NVENET_4		0x0086
+#define PCI_DEVICE_ID_NVIDIA_NVENET_5		0x008c
 #define PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA	0x008e
 #define PCI_DEVICE_ID_NVIDIA_ITNT2		0x00A0
 #define PCI_DEVICE_ID_NVIDIA_NFORCE3		0x00d1
 #define PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO		0x00da
 #define PCI_DEVICE_ID_NVIDIA_NFORCE3S  		0x00e1
 #define PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE	0x00d5
+#define PCI_DEVICE_ID_NVIDIA_NVENET_3		0x00d6
+#define PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO		0x00da
+#define PCI_DEVICE_ID_NVIDIA_NVENET_7		0x00df
+#define PCI_DEVICE_ID_NVIDIA_NFORCE3S		0x00e1
 #define PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA	0x00e3
 #define PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE	0x00e5
+#define PCI_DEVICE_ID_NVIDIA_NVENET_6		0x00e6
 #define PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2	0x00ee
 #define PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR	0x0100
 #define PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR	0x0101
@@ -1103,6 +1115,7 @@
 #define PCI_DEVICE_ID_NVIDIA_NFORCE		0x01a4
 #define PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO		0x01b1
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_IDE		0x01bc
+#define PCI_DEVICE_ID_NVIDIA_NVENET_1		0x01c3
 #define PCI_DEVICE_ID_NVIDIA_NFORCE2		0x01e0
 #define PCI_DEVICE_ID_NVIDIA_GEFORCE3		0x0200
 #define PCI_DEVICE_ID_NVIDIA_GEFORCE3_1		0x0201