1 files changed, 202 insertions, 108 deletions

diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index d6eefdb..22aec6e 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -95,6 +95,8 @@
  *			   of nv_remove
  *      0.42: 06 Aug 2005: Fix lack of link speed initialization
  *			   in the second (and later) nv_open call
+ *      0.43: 10 Aug 2005: Add support for tx checksum.
+ *      0.44: 20 Aug 2005: Add support for scatter gather and segmentation.
  *
  * Known bugs:
  * We suspect that on some hardware no TX done interrupts are generated.
@@ -106,7 +108,7 @@
  * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few
  * superfluous timer interrupts from the nic.
  */
-#define FORCEDETH_VERSION		"0.41"
+#define FORCEDETH_VERSION		"0.44"
 #define DRV_NAME			"forcedeth"
 
 #include <linux/module.h>
@@ -145,6 +147,7 @@
 #define DEV_NEED_LINKTIMER	0x0002	/* poll link settings. Relies on the timer irq */
 #define DEV_HAS_LARGEDESC	0x0004	/* device supports jumbo frames and needs packet format 2 */
 #define DEV_HAS_HIGH_DMA        0x0008  /* device supports 64bit dma */
+#define DEV_HAS_CHECKSUM        0x0010  /* device supports tx and rx checksum offloads */
 
 enum {
 	NvRegIrqStatus = 0x000,
@@ -241,6 +244,9 @@ enum {
 #define NVREG_TXRXCTL_IDLE	0x0008
 #define NVREG_TXRXCTL_RESET	0x0010
 #define NVREG_TXRXCTL_RXCHECK	0x0400
+#define NVREG_TXRXCTL_DESC_1	0
+#define NVREG_TXRXCTL_DESC_2	0x02100
+#define NVREG_TXRXCTL_DESC_3	0x02200
 	NvRegMIIStatus = 0x180,
 #define NVREG_MIISTAT_ERROR		0x0001
 #define NVREG_MIISTAT_LINKCHANGE	0x0008
@@ -335,6 +341,10 @@ typedef union _ring_type {
 /* error and valid are the same for both */
 #define NV_TX2_ERROR		(1<<30)
 #define NV_TX2_VALID		(1<<31)
+#define NV_TX2_TSO		(1<<28)
+#define NV_TX2_TSO_SHIFT	14
+#define NV_TX2_CHECKSUM_L3	(1<<27)
+#define NV_TX2_CHECKSUM_L4	(1<<26)
 
 #define NV_RX_DESCRIPTORVALID	(1<<16)
 #define NV_RX_MISSEDFRAME	(1<<17)
@@ -417,14 +427,14 @@ typedef union _ring_type {
 
 /* 
  * desc_ver values:
- * This field has two purposes:
- * - Newer nics uses a different ring layout. The layout is selected by
- *   comparing np->desc_ver with DESC_VER_xy.
- * - It contains bits that are forced on when writing to NvRegTxRxControl.
+ * The nic supports three different descriptor types:
+ * - DESC_VER_1: Original
+ * - DESC_VER_2: support for jumbo frames.
+ * - DESC_VER_3: 64-bit format.
  */
-#define DESC_VER_1	0x0
-#define DESC_VER_2	(0x02100|NVREG_TXRXCTL_RXCHECK)
-#define DESC_VER_3      (0x02200|NVREG_TXRXCTL_RXCHECK)
+#define DESC_VER_1	1
+#define DESC_VER_2	2
+#define DESC_VER_3	3
 
 /* PHY defines */
 #define PHY_OUI_MARVELL	0x5043
@@ -491,6 +501,7 @@ struct fe_priv {
 	u32 orig_mac[2];
 	u32 irqmask;
 	u32 desc_ver;
+	u32 txrxctl_bits;
 
 	void __iomem *base;
 
@@ -534,7 +545,7 @@ static inline struct fe_priv *get_nvpriv(struct net_device *dev)
 
 static inline u8 __iomem *get_hwbase(struct net_device *dev)
 {
-	return get_nvpriv(dev)->base;
+	return ((struct fe_priv *)netdev_priv(dev))->base;
 }
 
 static inline void pci_push(u8 __iomem *base)
@@ -623,7 +634,7 @@ static int mii_rw(struct net_device *dev, int addr, int miireg, int value)
 
 static int phy_reset(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u32 miicontrol;
 	unsigned int tries = 0;
 
@@ -726,7 +737,7 @@ static int phy_init(struct net_device *dev)
 
 static void nv_start_rx(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
 
 	dprintk(KERN_DEBUG "%s: nv_start_rx\n", dev->name);
@@ -782,14 +793,14 @@ static void nv_stop_tx(struct net_device *dev)
 
 static void nv_txrx_reset(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
 
 	dprintk(KERN_DEBUG "%s: nv_txrx_reset\n", dev->name);
-	writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->desc_ver, base + NvRegTxRxControl);
+	writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
 	pci_push(base);
 	udelay(NV_TXRX_RESET_DELAY);
-	writel(NVREG_TXRXCTL_BIT2 | np->desc_ver, base + NvRegTxRxControl);
+	writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
 	pci_push(base);
 }
 
@@ -801,7 +812,7 @@ static void nv_txrx_reset(struct net_device *dev)
  */
 static struct net_device_stats *nv_get_stats(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 
 	/* It seems that the nic always generates interrupts and doesn't
 	 * accumulate errors internally. Thus the current values in np->stats
@@ -817,7 +828,7 @@ static struct net_device_stats *nv_get_stats(struct net_device *dev)
  */
 static int nv_alloc_rx(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	unsigned int refill_rx = np->refill_rx;
 	int nr;
 
@@ -861,7 +872,7 @@ static int nv_alloc_rx(struct net_device *dev)
 static void nv_do_rx_refill(unsigned long data)
 {
 	struct net_device *dev = (struct net_device *) data;
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 
 	disable_irq(dev->irq);
 	if (nv_alloc_rx(dev)) {
@@ -875,7 +886,7 @@ static void nv_do_rx_refill(unsigned long data)
 
 static void nv_init_rx(struct net_device *dev) 
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	int i;
 
 	np->cur_rx = RX_RING;
@@ -889,15 +900,17 @@ static void nv_init_rx(struct net_device *dev)
 
 static void nv_init_tx(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	int i;
 
 	np->next_tx = np->nic_tx = 0;
-	for (i = 0; i < TX_RING; i++)
+	for (i = 0; i < TX_RING; i++) {
 		if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
 			np->tx_ring.orig[i].FlagLen = 0;
 	        else
 			np->tx_ring.ex[i].FlagLen = 0;
+		np->tx_skbuff[i] = NULL;
+	}
 }
 
 static int nv_init_ring(struct net_device *dev)
@@ -907,21 +920,44 @@ static int nv_init_ring(struct net_device *dev)
 	return nv_alloc_rx(dev);
 }
 
+static void nv_release_txskb(struct net_device *dev, unsigned int skbnr)
+{
+	struct fe_priv *np = netdev_priv(dev);
+	struct sk_buff *skb = np->tx_skbuff[skbnr];
+	unsigned int j, entry, fragments;
+			
+	dprintk(KERN_INFO "%s: nv_release_txskb for skbnr %d, skb %p\n",
+		dev->name, skbnr, np->tx_skbuff[skbnr]);
+	
+	entry = skbnr;
+	if ((fragments = skb_shinfo(skb)->nr_frags) != 0) {
+		for (j = fragments; j >= 1; j--) {
+			skb_frag_t *frag = &skb_shinfo(skb)->frags[j-1];
+			pci_unmap_page(np->pci_dev, np->tx_dma[entry],
+				       frag->size,
+				       PCI_DMA_TODEVICE);
+			entry = (entry - 1) % TX_RING;
+		}
+	}
+	pci_unmap_single(np->pci_dev, np->tx_dma[entry],
+			 skb->len - skb->data_len,
+			 PCI_DMA_TODEVICE);
+	dev_kfree_skb_irq(skb);
+	np->tx_skbuff[skbnr] = NULL;
+}
+
 static void nv_drain_tx(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
-	int i;
+	struct fe_priv *np = netdev_priv(dev);
+	unsigned int i;
+	
 	for (i = 0; i < TX_RING; i++) {
 		if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
 			np->tx_ring.orig[i].FlagLen = 0;
 		else
 			np->tx_ring.ex[i].FlagLen = 0;
 		if (np->tx_skbuff[i]) {
-			pci_unmap_single(np->pci_dev, np->tx_dma[i],
-						np->tx_skbuff[i]->len,
-						PCI_DMA_TODEVICE);
-			dev_kfree_skb(np->tx_skbuff[i]);
-			np->tx_skbuff[i] = NULL;
+			nv_release_txskb(dev, i);
 			np->stats.tx_dropped++;
 		}
 	}
@@ -929,7 +965,7 @@ static void nv_drain_tx(struct net_device *dev)
 
 static void nv_drain_rx(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	int i;
 	for (i = 0; i < RX_RING; i++) {
 		if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
@@ -959,28 +995,69 @@ static void drain_ring(struct net_device *dev)
  */
 static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
-	int nr = np->next_tx % TX_RING;
+	struct fe_priv *np = netdev_priv(dev);
+	u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET);
+	unsigned int fragments = skb_shinfo(skb)->nr_frags;
+	unsigned int nr = (np->next_tx + fragments) % TX_RING;
+	unsigned int i;
+
+	spin_lock_irq(&np->lock);
+
+	if ((np->next_tx - np->nic_tx + fragments) > TX_LIMIT_STOP) {
+		spin_unlock_irq(&np->lock);
+		netif_stop_queue(dev);
+		return NETDEV_TX_BUSY;
+	}
 
 	np->tx_skbuff[nr] = skb;
-	np->tx_dma[nr] = pci_map_single(np->pci_dev, skb->data,skb->len,
-					PCI_DMA_TODEVICE);
+	
+	if (fragments) {
+		dprintk(KERN_DEBUG "%s: nv_start_xmit: buffer contains %d fragments\n", dev->name, fragments);
+		/* setup descriptors in reverse order */
+		for (i = fragments; i >= 1; i--) {
+			skb_frag_t *frag = &skb_shinfo(skb)->frags[i-1];
+			np->tx_dma[nr] = pci_map_page(np->pci_dev, frag->page, frag->page_offset, frag->size,
+							PCI_DMA_TODEVICE);
 
-	if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
+			if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
+				np->tx_ring.orig[nr].PacketBuffer = cpu_to_le32(np->tx_dma[nr]);
+				np->tx_ring.orig[nr].FlagLen = cpu_to_le32( (frag->size-1) | np->tx_flags | tx_flags_extra);
+			} else {
+				np->tx_ring.ex[nr].PacketBufferHigh = cpu_to_le64(np->tx_dma[nr]) >> 32;
+				np->tx_ring.ex[nr].PacketBufferLow = cpu_to_le64(np->tx_dma[nr]) & 0x0FFFFFFFF;
+				np->tx_ring.ex[nr].FlagLen = cpu_to_le32( (frag->size-1) | np->tx_flags | tx_flags_extra);
+			}
+			
+			nr = (nr - 1) % TX_RING;
+
+			if (np->desc_ver == DESC_VER_1)
+				tx_flags_extra &= ~NV_TX_LASTPACKET;
+			else
+				tx_flags_extra &= ~NV_TX2_LASTPACKET;		
+		}
+	}
+
+#ifdef NETIF_F_TSO
+	if (skb_shinfo(skb)->tso_size)
+		tx_flags_extra |= NV_TX2_TSO | (skb_shinfo(skb)->tso_size << NV_TX2_TSO_SHIFT);
+	else
+#endif
+	tx_flags_extra |= (skb->ip_summed == CHECKSUM_HW ? (NV_TX2_CHECKSUM_L3|NV_TX2_CHECKSUM_L4) : 0);
+
+	np->tx_dma[nr] = pci_map_single(np->pci_dev, skb->data, skb->len-skb->data_len,
+					PCI_DMA_TODEVICE);
+	
+	if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
 		np->tx_ring.orig[nr].PacketBuffer = cpu_to_le32(np->tx_dma[nr]);
-	else {
+		np->tx_ring.orig[nr].FlagLen = cpu_to_le32( (skb->len-skb->data_len-1) | np->tx_flags | tx_flags_extra);
+	} else {
 		np->tx_ring.ex[nr].PacketBufferHigh = cpu_to_le64(np->tx_dma[nr]) >> 32;
 		np->tx_ring.ex[nr].PacketBufferLow = cpu_to_le64(np->tx_dma[nr]) & 0x0FFFFFFFF;
-	}
+		np->tx_ring.ex[nr].FlagLen = cpu_to_le32( (skb->len-skb->data_len-1) | np->tx_flags | tx_flags_extra);
+	}	
 
-	spin_lock_irq(&np->lock);
-	wmb();
-	if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
-		np->tx_ring.orig[nr].FlagLen = cpu_to_le32( (skb->len-1) | np->tx_flags );
-	else
-		np->tx_ring.ex[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);
+	dprintk(KERN_DEBUG "%s: nv_start_xmit: packet packet %d queued for transmission. tx_flags_extra: %x\n",
+				dev->name, np->next_tx, tx_flags_extra);
 	{
 		int j;
 		for (j=0; j<64; j++) {
@@ -991,15 +1068,13 @@ static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		dprintk("\n");
 	}
 
-	np->next_tx++;
+	np->next_tx += 1 + fragments;
 
 	dev->trans_start = jiffies;
-	if (np->next_tx - np->nic_tx >= TX_LIMIT_STOP)
-		netif_stop_queue(dev);
 	spin_unlock_irq(&np->lock);
-	writel(NVREG_TXRXCTL_KICK|np->desc_ver, get_hwbase(dev) + NvRegTxRxControl);
+	writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
 	pci_push(get_hwbase(dev));
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*
@@ -1009,9 +1084,10 @@ static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
  */
 static void nv_tx_done(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u32 Flags;
-	int i;
+	unsigned int i;
+	struct sk_buff *skb;
 
 	while (np->nic_tx != np->next_tx) {
 		i = np->nic_tx % TX_RING;
@@ -1026,35 +1102,38 @@ static void nv_tx_done(struct net_device *dev)
 		if (Flags & NV_TX_VALID)
 			break;
 		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;
+			if (Flags & NV_TX_LASTPACKET) {
+				skb = np->tx_skbuff[i];
+				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 += skb->len;
+				}
+				nv_release_txskb(dev, i);
 			}
 		} else {
-			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;
+			if (Flags & NV_TX2_LASTPACKET) {
+				skb = np->tx_skbuff[i];
+				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 += skb->len;
+				}				
+				nv_release_txskb(dev, i);
 			}
 		}
-		pci_unmap_single(np->pci_dev, np->tx_dma[i],
-					np->tx_skbuff[i]->len,
-					PCI_DMA_TODEVICE);
-		dev_kfree_skb_irq(np->tx_skbuff[i]);
-		np->tx_skbuff[i] = NULL;
 		np->nic_tx++;
 	}
 	if (np->next_tx - np->nic_tx < TX_LIMIT_START)
@@ -1067,7 +1146,7 @@ static void nv_tx_done(struct net_device *dev)
  */
 static void nv_tx_timeout(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
 
 	printk(KERN_INFO "%s: Got tx_timeout. irq: %08x\n", dev->name,
@@ -1200,7 +1279,7 @@ static int nv_getlen(struct net_device *dev, void *packet, int datalen)
 
 static void nv_rx_process(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u32 Flags;
 
 	for (;;) {
@@ -1355,7 +1434,7 @@ static void set_bufsize(struct net_device *dev)
  */
 static int nv_change_mtu(struct net_device *dev, int new_mtu)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	int old_mtu;
 
 	if (new_mtu < 64 || new_mtu > np->pkt_limit)
@@ -1408,7 +1487,7 @@ static int nv_change_mtu(struct net_device *dev, int new_mtu)
 		writel( ((RX_RING-1) << NVREG_RINGSZ_RXSHIFT) + ((TX_RING-1) << NVREG_RINGSZ_TXSHIFT),
 			base + NvRegRingSizes);
 		pci_push(base);
-		writel(NVREG_TXRXCTL_KICK|np->desc_ver, get_hwbase(dev) + NvRegTxRxControl);
+		writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
 		pci_push(base);
 
 		/* restart rx engine */
@@ -1440,7 +1519,7 @@ static void nv_copy_mac_to_hw(struct net_device *dev)
  */
 static int nv_set_mac_address(struct net_device *dev, void *addr)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	struct sockaddr *macaddr = (struct sockaddr*)addr;
 
 	if(!is_valid_ether_addr(macaddr->sa_data))
@@ -1475,7 +1554,7 @@ static int nv_set_mac_address(struct net_device *dev, void *addr)
  */
 static void nv_set_multicast(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
 	u32 addr[2];
 	u32 mask[2];
@@ -1535,7 +1614,7 @@ static void nv_set_multicast(struct net_device *dev)
 
 static int nv_update_linkspeed(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
 	int adv, lpa;
 	int newls = np->linkspeed;
@@ -1705,7 +1784,7 @@ static void nv_link_irq(struct net_device *dev)
 static irqreturn_t nv_nic_irq(int foo, void *data, struct pt_regs *regs)
 {
 	struct net_device *dev = (struct net_device *) data;
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
 	u32 events;
 	int i;
@@ -1777,7 +1856,7 @@ static irqreturn_t nv_nic_irq(int foo, void *data, struct pt_regs *regs)
 static void nv_do_nic_poll(unsigned long data)
 {
 	struct net_device *dev = (struct net_device *) data;
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
 
 	disable_irq(dev->irq);
@@ -1801,7 +1880,7 @@ static void nv_poll_controller(struct net_device *dev)
 
 static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	strcpy(info->driver, "forcedeth");
 	strcpy(info->version, FORCEDETH_VERSION);
 	strcpy(info->bus_info, pci_name(np->pci_dev));
@@ -1809,7 +1888,7 @@ static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
 
 static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	wolinfo->supported = WAKE_MAGIC;
 
 	spin_lock_irq(&np->lock);
@@ -1820,7 +1899,7 @@ static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
 
 static int nv_set_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
 
 	spin_lock_irq(&np->lock);
@@ -2021,7 +2100,7 @@ static int nv_get_regs_len(struct net_device *dev)
 
 static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
 	u32 *rbuf = buf;
 	int i;
@@ -2035,7 +2114,7 @@ static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void
 
 static int nv_nway_reset(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	int ret;
 
 	spin_lock_irq(&np->lock);
@@ -2065,11 +2144,12 @@ static struct ethtool_ops ops = {
 	.get_regs_len = nv_get_regs_len,
 	.get_regs = nv_get_regs,
 	.nway_reset = nv_nway_reset,
+	.get_perm_addr = ethtool_op_get_perm_addr,
 };
 
 static int nv_open(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
 	int ret, oom, i;
 
@@ -2114,9 +2194,9 @@ static int nv_open(struct net_device *dev)
 	/* 5) continue setup */
 	writel(np->linkspeed, base + NvRegLinkSpeed);
 	writel(NVREG_UNKSETUP3_VAL1, base + NvRegUnknownSetupReg3);
-	writel(np->desc_ver, base + NvRegTxRxControl);
+	writel(np->txrxctl_bits, base + NvRegTxRxControl);
 	pci_push(base);
-	writel(NVREG_TXRXCTL_BIT1|np->desc_ver, base + NvRegTxRxControl);
+	writel(NVREG_TXRXCTL_BIT1|np->txrxctl_bits, 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");
@@ -2205,7 +2285,7 @@ out_drain:
 
 static int nv_close(struct net_device *dev)
 {
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base;
 
 	spin_lock_irq(&np->lock);
@@ -2261,7 +2341,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 	if (!dev)
 		goto out;
 
-	np = get_nvpriv(dev);
+	np = netdev_priv(dev);
 	np->pci_dev = pci_dev;
 	spin_lock_init(&np->lock);
 	SET_MODULE_OWNER(dev);
@@ -2313,19 +2393,32 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 		if (pci_set_dma_mask(pci_dev, 0x0000007fffffffffULL)) {
 			printk(KERN_INFO "forcedeth: 64-bit DMA failed, using 32-bit addressing for device %s.\n",
 					pci_name(pci_dev));
+		} else {
+			dev->features |= NETIF_F_HIGHDMA;
 		}
+		np->txrxctl_bits = NVREG_TXRXCTL_DESC_3;
 	} else if (id->driver_data & DEV_HAS_LARGEDESC) {
 		/* packet format 2: supports jumbo frames */
 		np->desc_ver = DESC_VER_2;
+		np->txrxctl_bits = NVREG_TXRXCTL_DESC_2;
 	} else {
 		/* original packet format */
 		np->desc_ver = DESC_VER_1;
+		np->txrxctl_bits = NVREG_TXRXCTL_DESC_1;
 	}
 
 	np->pkt_limit = NV_PKTLIMIT_1;
 	if (id->driver_data & DEV_HAS_LARGEDESC)
 		np->pkt_limit = NV_PKTLIMIT_2;
 
+	if (id->driver_data & DEV_HAS_CHECKSUM) {
+		np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
+		dev->features |= NETIF_F_HW_CSUM | NETIF_F_SG;
+#ifdef NETIF_F_TSO
+		dev->features |= NETIF_F_TSO;
+#endif
+ 	}
+
 	err = -ENOMEM;
 	np->base = ioremap(addr, NV_PCI_REGSZ);
 	if (!np->base)
@@ -2377,8 +2470,9 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 	dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff;
 	dev->dev_addr[4] = (np->orig_mac[0] >>  8) & 0xff;
 	dev->dev_addr[5] = (np->orig_mac[0] >>  0) & 0xff;
+	memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
 
-	if (!is_valid_ether_addr(dev->dev_addr)) {
+	if (!is_valid_ether_addr(dev->perm_addr)) {
 		/*
 		 * Bad mac address. At least one bios sets the mac address
 		 * to 01:23:45:67:89:ab
@@ -2403,9 +2497,9 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 	np->wolenabled = 0;
 
 	if (np->desc_ver == DESC_VER_1) {
-		np->tx_flags = NV_TX_LASTPACKET|NV_TX_VALID;
+		np->tx_flags = NV_TX_VALID;
 	} else {
-		np->tx_flags = NV_TX2_LASTPACKET|NV_TX2_VALID;
+		np->tx_flags = NV_TX2_VALID;
 	}
 	np->irqmask = NVREG_IRQMASK_WANTED;
 	if (id->driver_data & DEV_NEED_TIMERIRQ)
@@ -2494,7 +2588,7 @@ out:
 static void __devexit nv_remove(struct pci_dev *pci_dev)
 {
 	struct net_device *dev = pci_get_drvdata(pci_dev);
-	struct fe_priv *np = get_nvpriv(dev);
+	struct fe_priv *np = netdev_priv(dev);
 
 	unregister_netdev(dev);
 
@@ -2525,35 +2619,35 @@ static struct pci_device_id pci_tbl[] = {
 	},
 	{	/* nForce3 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_4),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
 	},
 	{	/* nForce3 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_5),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
 	},
 	{	/* nForce3 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_6),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
 	},
 	{	/* nForce3 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_7),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
 	},
 	{	/* CK804 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_8),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
 	},
 	{	/* CK804 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_9),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
 	},
 	{	/* MCP04 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_10),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
 	},
 	{	/* MCP04 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_11),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
 	},
 	{	/* MCP51 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12),
@@ -2565,11 +2659,11 @@ static struct pci_device_id pci_tbl[] = {
 	},
 	{	/* MCP55 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
 	},
 	{	/* MCP55 Ethernet Controller */
 		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15),
-		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA,
+		.driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA,
 	},
 	{0,},
 };