Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (43 commits)
  [IPSEC]: Fix BEET output
  [ICMP]: Dst entry leak in icmp_send host re-lookup code (v2).
  [AX25]: Remove obsolete references to BKL from TODO file.
  [NET]: Fix multicast device ioctl checks
  [IRDA]: Store irnet_socket termios properly.
  [UML]: uml-net: don't set IFF_ALLMULTI in set_multicast_list
  [VLAN]: Don't copy ALLMULTI/PROMISC flags from underlying device
  netxen, phy/marvell, skge: minor checkpatch fixes
  S2io: Handle TX completions on the same CPU as the sender for MIS-X interrupts
  b44: Truncate PHY address
  skge napi->poll() locking bug
  rndis_host: fix oops when query for OID_GEN_PHYSICAL_MEDIUM fails
  cxgb3: Fix lockdep problems with sge.reg_lock
  ehea: Fix IPv6 support
  dm9000: Support promisc and all-multi modes
  dm9601: configure MAC to drop invalid (crc/length) packets
  dm9601: add Hirose USB-100 device ID
  Marvell PHY m88e1111 driver fix
  netxen: fix rx dropped stats
  netxen: remove low level tx lock
  ...

8 files changed, 137 insertions, 400 deletions

diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h
index 2bc5eaae141..7f20a03623a 100644
--- a/drivers/net/netxen/netxen_nic.h
+++ b/drivers/net/netxen/netxen_nic.h
@@ -85,7 +85,7 @@
 	(sizeof(struct netxen_cmd_buffer) * adapter->max_tx_desc_count)
 #define RCV_BUFFSIZE	\
 	(sizeof(struct netxen_rx_buffer) * rcv_desc->max_rx_desc_count)
-#define find_diff_among(a,b,range) ((a)<=(b)?((b)-(a)):((b)+(range)-(a)))
+#define find_diff_among(a,b,range) ((a)<(b)?((b)-(a)):((b)+(range)-(a)))
 
 #define NETXEN_NETDEV_STATUS		0x1
 #define NETXEN_RCV_PRODUCER_OFFSET	0
@@ -204,7 +204,7 @@ enum {
 			? RCV_DESC_LRO :	\
 			(RCV_DESC_NORMAL)))
 
-#define MAX_CMD_DESCRIPTORS		1024
+#define MAX_CMD_DESCRIPTORS		4096
 #define MAX_RCV_DESCRIPTORS		16384
 #define MAX_CMD_DESCRIPTORS_HOST	(MAX_CMD_DESCRIPTORS / 4)
 #define MAX_RCV_DESCRIPTORS_1G		(MAX_RCV_DESCRIPTORS / 4)
@@ -818,15 +818,8 @@ struct netxen_adapter_stats {
 	u64  badskblen;
 	u64  nocmddescriptor;
 	u64  polled;
-	u64  uphappy;
-	u64  updropped;
-	u64  uplcong;
-	u64  uphcong;
-	u64  upmcong;
-	u64  updunno;
-	u64  skbfreed;
+	u64  rxdropped;
 	u64  txdropped;
-	u64  txnullskb;
 	u64  csummed;
 	u64  no_rcv;
 	u64  rxbytes;
@@ -842,7 +835,6 @@ struct netxen_rcv_desc_ctx {
 	u32 flags;
 	u32 producer;
 	u32 rcv_pending;	/* Num of bufs posted in phantom */
-	u32 rcv_free;		/* Num of bufs in free list */
 	dma_addr_t phys_addr;
 	struct pci_dev *phys_pdev;
 	struct rcv_desc *desc_head;	/* address of rx ring in Phantom */
@@ -889,8 +881,6 @@ struct netxen_adapter {
 	int mtu;
 	int portnum;
 
-	spinlock_t tx_lock;
-	spinlock_t lock;
 	struct work_struct watchdog_task;
 	struct timer_list watchdog_timer;
 	struct work_struct  tx_timeout_task;
@@ -899,16 +889,12 @@ struct netxen_adapter {
 
 	u32 cmd_producer;
 	__le32 *cmd_consumer;
-
 	u32 last_cmd_consumer;
+
 	u32 max_tx_desc_count;
 	u32 max_rx_desc_count;
 	u32 max_jumbo_rx_desc_count;
 	u32 max_lro_rx_desc_count;
-	/* Num of instances active on cmd buffer ring */
-	u32 proc_cmd_buf_counter;
-
-	u32 num_threads, total_threads;	/*Use to keep track of xmit threads */
 
 	u32 flags;
 	u32 irq;
@@ -942,6 +928,7 @@ struct netxen_adapter {
 	struct pci_dev *ctx_desc_pdev;
 	dma_addr_t ctx_desc_phys_addr;
 	int intr_scheme;
+	int msi_mode;
 	int (*enable_phy_interrupts) (struct netxen_adapter *);
 	int (*disable_phy_interrupts) (struct netxen_adapter *);
 	void (*handle_phy_intr) (struct netxen_adapter *);
@@ -1075,12 +1062,10 @@ void netxen_tso_check(struct netxen_adapter *adapter,
 		      struct cmd_desc_type0 *desc, struct sk_buff *skb);
 int netxen_nic_hw_resources(struct netxen_adapter *adapter);
 void netxen_nic_clear_stats(struct netxen_adapter *adapter);
-int netxen_nic_rx_has_work(struct netxen_adapter *adapter);
-int netxen_nic_tx_has_work(struct netxen_adapter *adapter);
 void netxen_watchdog_task(struct work_struct *work);
 void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx,
 			    u32 ringid);
-int netxen_process_cmd_ring(unsigned long data);
+int netxen_process_cmd_ring(struct netxen_adapter *adapter);
 u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctx, int max);
 void netxen_nic_set_multi(struct net_device *netdev);
 int netxen_nic_change_mtu(struct net_device *netdev, int new_mtu);
diff --git a/drivers/net/netxen/netxen_nic_ethtool.c b/drivers/net/netxen/netxen_nic_ethtool.c
index 7a876f4b8db..6e98d830eef 100644
--- a/drivers/net/netxen/netxen_nic_ethtool.c
+++ b/drivers/net/netxen/netxen_nic_ethtool.c
@@ -64,15 +64,7 @@ static const struct netxen_nic_stats netxen_nic_gstrings_stats[] = {
 	{"bad_skb_len", NETXEN_NIC_STAT(stats.badskblen)},
 	{"no_cmd_desc", NETXEN_NIC_STAT(stats.nocmddescriptor)},
 	{"polled", NETXEN_NIC_STAT(stats.polled)},
-	{"uphappy", NETXEN_NIC_STAT(stats.uphappy)},
-	{"updropped", NETXEN_NIC_STAT(stats.updropped)},
-	{"uplcong", NETXEN_NIC_STAT(stats.uplcong)},
-	{"uphcong", NETXEN_NIC_STAT(stats.uphcong)},
-	{"upmcong", NETXEN_NIC_STAT(stats.upmcong)},
-	{"updunno", NETXEN_NIC_STAT(stats.updunno)},
-	{"skb_freed", NETXEN_NIC_STAT(stats.skbfreed)},
 	{"tx_dropped", NETXEN_NIC_STAT(stats.txdropped)},
-	{"tx_null_skb", NETXEN_NIC_STAT(stats.txnullskb)},
 	{"csummed", NETXEN_NIC_STAT(stats.csummed)},
 	{"no_rcv", NETXEN_NIC_STAT(stats.no_rcv)},
 	{"rx_bytes", NETXEN_NIC_STAT(stats.rxbytes)},
diff --git a/drivers/net/netxen/netxen_nic_hdr.h b/drivers/net/netxen/netxen_nic_hdr.h
index d72f8f8fcb5..160f605e58d 100644
--- a/drivers/net/netxen/netxen_nic_hdr.h
+++ b/drivers/net/netxen/netxen_nic_hdr.h
@@ -456,6 +456,12 @@ enum {
 #define ISR_INT_MASK_SLOW	(NETXEN_PCIX_PS_REG(PCIX_INT_MASK))
 #define ISR_INT_TARGET_STATUS	(NETXEN_PCIX_PS_REG(PCIX_TARGET_STATUS))
 #define ISR_INT_TARGET_MASK	(NETXEN_PCIX_PS_REG(PCIX_TARGET_MASK))
+#define ISR_INT_TARGET_STATUS_F1   (NETXEN_PCIX_PS_REG(PCIX_TARGET_STATUS_F1))
+#define ISR_INT_TARGET_MASK_F1     (NETXEN_PCIX_PS_REG(PCIX_TARGET_MASK_F1))
+#define ISR_INT_TARGET_STATUS_F2   (NETXEN_PCIX_PS_REG(PCIX_TARGET_STATUS_F2))
+#define ISR_INT_TARGET_MASK_F2     (NETXEN_PCIX_PS_REG(PCIX_TARGET_MASK_F2))
+#define ISR_INT_TARGET_STATUS_F3   (NETXEN_PCIX_PS_REG(PCIX_TARGET_STATUS_F3))
+#define ISR_INT_TARGET_MASK_F3     (NETXEN_PCIX_PS_REG(PCIX_TARGET_MASK_F3))
 
 #define NETXEN_PCI_MAPSIZE	128
 #define NETXEN_PCI_DDR_NET	(0x00000000UL)
@@ -662,6 +668,12 @@ enum {
 
 #define PCIX_TARGET_STATUS	(0x10118)
 #define PCIX_TARGET_MASK	(0x10128)
+#define PCIX_TARGET_STATUS_F1 (0x10160)
+#define PCIX_TARGET_MASK_F1   (0x10170)
+#define PCIX_TARGET_STATUS_F2 (0x10164)
+#define PCIX_TARGET_MASK_F2   (0x10174)
+#define PCIX_TARGET_STATUS_F3 (0x10168)
+#define PCIX_TARGET_MASK_F3   (0x10178)
 
 #define PCIX_MSI_F0		(0x13000)
 #define PCIX_MSI_F1		(0x13004)
diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index 01355701bf8..05748ca6f21 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -398,6 +398,8 @@ int netxen_nic_hw_resources(struct netxen_adapter *adapter)
 		NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_CAPABILITIES_FW));
 	printk(KERN_NOTICE "%s: FW capabilities:0x%x\n", netxen_nic_driver_name,
 			adapter->intr_scheme);
+	adapter->msi_mode = readl(
+		NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_MSI_MODE_FW));
 	DPRINTK(INFO, "Receive Peg ready too. starting stuff\n");
 
 	addr = netxen_alloc(adapter->ahw.pdev,
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index 9e38bcb3fba..45fa33e0cb9 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -145,6 +145,8 @@ int netxen_init_firmware(struct netxen_adapter *adapter)
 	/* Window 1 call */
 	writel(INTR_SCHEME_PERPORT,
 	       NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_CAPABILITIES_HOST));
+	writel(MSI_MODE_MULTIFUNC,
+	       NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_MSI_MODE_HOST));
 	writel(MPORT_MULTI_FUNCTION_MODE,
 	       NETXEN_CRB_NORMALIZE(adapter, CRB_MPORT_MODE));
 	writel(PHAN_INITIALIZE_ACK,
@@ -183,7 +185,6 @@ void netxen_initialize_adapter_sw(struct netxen_adapter *adapter)
 		for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
 			struct netxen_rx_buffer *rx_buf;
 			rcv_desc = &adapter->recv_ctx[ctxid].rcv_desc[ring];
-			rcv_desc->rcv_free = rcv_desc->max_rx_desc_count;
 			rcv_desc->begin_alloc = 0;
 			rx_buf = rcv_desc->rx_buf_arr;
 			num_rx_bufs = rcv_desc->max_rx_desc_count;
@@ -974,28 +975,6 @@ int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
 	return 0;
 }
 
-int netxen_nic_rx_has_work(struct netxen_adapter *adapter)
-{
-	int ctx;
-
-	for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
-		struct netxen_recv_context *recv_ctx =
-		    &(adapter->recv_ctx[ctx]);
-		u32 consumer;
-		struct status_desc *desc_head;
-		struct status_desc *desc;
-
-		consumer = recv_ctx->status_rx_consumer;
-		desc_head = recv_ctx->rcv_status_desc_head;
-		desc = &desc_head[consumer];
-
-		if (netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)
-			return 1;
-	}
-
-	return 0;
-}
-
 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
@@ -1038,7 +1017,6 @@ static int netxen_nic_check_temp(struct netxen_adapter *adapter)
 
 void netxen_watchdog_task(struct work_struct *work)
 {
-	struct net_device *netdev;
 	struct netxen_adapter *adapter =
 		container_of(work, struct netxen_adapter, watchdog_task);
 
@@ -1048,20 +1026,6 @@ void netxen_watchdog_task(struct work_struct *work)
 	if (adapter->handle_phy_intr)
 		adapter->handle_phy_intr(adapter);
 
-	netdev = adapter->netdev;
-	if ((netif_running(netdev)) && !netif_carrier_ok(netdev) &&
-			netxen_nic_link_ok(adapter) ) {
-		printk(KERN_INFO "%s %s (port %d), Link is up\n",
-			       netxen_nic_driver_name, netdev->name, adapter->portnum);
-		netif_carrier_on(netdev);
-		netif_wake_queue(netdev);
-	} else if(!(netif_running(netdev)) && netif_carrier_ok(netdev)) {
-		printk(KERN_ERR "%s %s Link is Down\n",
-				netxen_nic_driver_name, netdev->name);
-		netif_carrier_off(netdev);
-		netif_stop_queue(netdev);
-	}
-
 	mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
 }
 
@@ -1125,7 +1089,7 @@ static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid,
 	skb = (struct sk_buff *)buffer->skb;
 
 	if (likely(adapter->rx_csum &&
-				netxen_get_sts_status(sts_data) == STATUS_CKSUM_OK)) {
+			netxen_get_sts_status(sts_data) == STATUS_CKSUM_OK)) {
 		adapter->stats.csummed++;
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
 	} else
@@ -1142,40 +1106,8 @@ static void netxen_process_rcv(struct netxen_adapter *adapter, int ctxid,
 	skb->protocol = eth_type_trans(skb, netdev);
 
 	ret = netif_receive_skb(skb);
-
-	/*
-	 * RH: Do we need these stats on a regular basis. Can we get it from
-	 * Linux stats.
-	 */
-	switch (ret) {
-	case NET_RX_SUCCESS:
-		adapter->stats.uphappy++;
-		break;
-
-	case NET_RX_CN_LOW:
-		adapter->stats.uplcong++;
-		break;
-
-	case NET_RX_CN_MOD:
-		adapter->stats.upmcong++;
-		break;
-
-	case NET_RX_CN_HIGH:
-		adapter->stats.uphcong++;
-		break;
-
-	case NET_RX_DROP:
-		adapter->stats.updropped++;
-		break;
-
-	default:
-		adapter->stats.updunno++;
-		break;
-	}
-
 	netdev->last_rx = jiffies;
 
-	rcv_desc->rcv_free++;
 	rcv_desc->rcv_pending--;
 
 	/*
@@ -1200,13 +1132,6 @@ u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max)
 	u32 producer = 0;
 	int count = 0, ring;
 
-	DPRINTK(INFO, "procesing receive\n");
-	/*
-	 * we assume in this case that there is only one port and that is
-	 * port #1...changes need to be done in firmware to indicate port
-	 * number as part of the descriptor. This way we will be able to get
-	 * the netdev which is associated with that device.
-	 */
 	while (count < max) {
 		desc = &desc_head[consumer];
 		if (!(netxen_get_sts_owner(desc) & STATUS_OWNER_HOST)) {
@@ -1219,11 +1144,8 @@ u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max)
 		consumer = (consumer + 1) & (adapter->max_rx_desc_count - 1);
 		count++;
 	}
-	if (count) {
-		for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
-			netxen_post_rx_buffers_nodb(adapter, ctxid, ring);
-		}
-	}
+	for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++)
+		netxen_post_rx_buffers_nodb(adapter, ctxid, ring);
 
 	/* update the consumer index in phantom */
 	if (count) {
@@ -1233,108 +1155,60 @@ u32 netxen_process_rcv_ring(struct netxen_adapter *adapter, int ctxid, int max)
 		/* Window = 1 */
 		writel(consumer,
 		       NETXEN_CRB_NORMALIZE(adapter,
-					    recv_crb_registers[adapter->portnum].
+				    recv_crb_registers[adapter->portnum].
 					    crb_rcv_status_consumer));
-		wmb();
 	}
 
 	return count;
 }
 
 /* Process Command status ring */
-int netxen_process_cmd_ring(unsigned long data)
+int netxen_process_cmd_ring(struct netxen_adapter *adapter)
 {
-	u32 last_consumer;
-	u32 consumer;
-	struct netxen_adapter *adapter = (struct netxen_adapter *)data;
-	int count1 = 0;
-	int count2 = 0;
+	u32 last_consumer, consumer;
+	int count = 0, i;
 	struct netxen_cmd_buffer *buffer;
-	struct pci_dev *pdev;
+	struct pci_dev *pdev = adapter->pdev;
+	struct net_device *netdev = adapter->netdev;
 	struct netxen_skb_frag *frag;
-	u32 i;
-	int done;
+	int done = 0;
 
-	spin_lock(&adapter->tx_lock);
 	last_consumer = adapter->last_cmd_consumer;
-	DPRINTK(INFO, "procesing xmit complete\n");
-	/* we assume in this case that there is only one port and that is
-	 * port #1...changes need to be done in firmware to indicate port
-	 * number as part of the descriptor. This way we will be able to get
-	 * the netdev which is associated with that device.
-	 */
-
 	consumer = le32_to_cpu(*(adapter->cmd_consumer));
-	if (last_consumer == consumer) {	/* Ring is empty    */
-		DPRINTK(INFO, "last_consumer %d == consumer %d\n",
-			last_consumer, consumer);
-		spin_unlock(&adapter->tx_lock);
-		return 1;
-	}
-
-	adapter->proc_cmd_buf_counter++;
-	/*
-	 * Not needed - does not seem to be used anywhere.
-	 * adapter->cmd_consumer = consumer;
-	 */
-	spin_unlock(&adapter->tx_lock);
 
-	while ((last_consumer != consumer) && (count1 < MAX_STATUS_HANDLE)) {
+	while (last_consumer != consumer) {
 		buffer = &adapter->cmd_buf_arr[last_consumer];
-		pdev = adapter->pdev;
 		if (buffer->skb) {
 			frag = &buffer->frag_array[0];
 			pci_unmap_single(pdev, frag->dma, frag->length,
 					 PCI_DMA_TODEVICE);
 			frag->dma = 0ULL;
 			for (i = 1; i < buffer->frag_count; i++) {
-				DPRINTK(INFO, "getting fragment no %d\n", i);
 				frag++;	/* Get the next frag */
 				pci_unmap_page(pdev, frag->dma, frag->length,
 					       PCI_DMA_TODEVICE);
 				frag->dma = 0ULL;
 			}
 
-			adapter->stats.skbfreed++;
+			adapter->stats.xmitfinished++;
 			dev_kfree_skb_any(buffer->skb);
 			buffer->skb = NULL;
-		} else if (adapter->proc_cmd_buf_counter == 1) {
-			adapter->stats.txnullskb++;
-		}
-		if (unlikely(netif_queue_stopped(adapter->netdev)
-			     && netif_carrier_ok(adapter->netdev))
-		    && ((jiffies - adapter->netdev->trans_start) >
-			adapter->netdev->watchdog_timeo)) {
-			SCHEDULE_WORK(&adapter->tx_timeout_task);
 		}
 
 		last_consumer = get_next_index(last_consumer,
 					       adapter->max_tx_desc_count);
-		count1++;
+		if (++count >= MAX_STATUS_HANDLE)
+			break;
 	}
 
-	count2 = 0;
-	spin_lock(&adapter->tx_lock);
-	if ((--adapter->proc_cmd_buf_counter) == 0) {
+	if (count) {
 		adapter->last_cmd_consumer = last_consumer;
-		while ((adapter->last_cmd_consumer != consumer)
-		       && (count2 < MAX_STATUS_HANDLE)) {
-			buffer =
-			    &adapter->cmd_buf_arr[adapter->last_cmd_consumer];
-			count2++;
-			if (buffer->skb)
-				break;
-			else
-				adapter->last_cmd_consumer =
-				    get_next_index(adapter->last_cmd_consumer,
-						   adapter->max_tx_desc_count);
-		}
-	}
-	if (count1 || count2) {
-		if (netif_queue_stopped(adapter->netdev)
-		    && (adapter->flags & NETXEN_NETDEV_STATUS)) {
-			netif_wake_queue(adapter->netdev);
-			adapter->flags &= ~NETXEN_NETDEV_STATUS;
+		smp_mb();
+		if (netif_queue_stopped(netdev) && netif_running(netdev)) {
+			netif_tx_lock(netdev);
+			netif_wake_queue(netdev);
+			smp_mb();
+			netif_tx_unlock(netdev);
 		}
 	}
 	/*
@@ -1350,16 +1224,9 @@ int netxen_process_cmd_ring(unsigned long data)
 	 * There is still a possible race condition and the host could miss an
 	 * interrupt. The card has to take care of this.
 	 */
-	if (adapter->last_cmd_consumer == consumer &&
-	    (((adapter->cmd_producer + 1) %
-	      adapter->max_tx_desc_count) == adapter->last_cmd_consumer)) {
-		consumer = le32_to_cpu(*(adapter->cmd_consumer));
-	}
-	done = (adapter->last_cmd_consumer == consumer);
+	consumer = le32_to_cpu(*(adapter->cmd_consumer));
+	done = (last_consumer == consumer);
 
-	spin_unlock(&adapter->tx_lock);
-	DPRINTK(INFO, "last consumer is %d in %s\n", last_consumer,
-		__FUNCTION__);
 	return (done);
 }
 
@@ -1433,8 +1300,6 @@ void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid)
 		rcv_desc->begin_alloc = index;
 		rcv_desc->rcv_pending += count;
 		rcv_desc->producer = producer;
-		if (rcv_desc->rcv_free >= 32) {
-			rcv_desc->rcv_free = 0;
 			/* Window = 1 */
 			writel((producer - 1) &
 			       (rcv_desc->max_rx_desc_count - 1),
@@ -1458,8 +1323,6 @@ void netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ctx, u32 ringid)
 			writel(msg,
 			       DB_NORMALIZE(adapter,
 					    NETXEN_RCV_PRODUCER_OFFSET));
-			wmb();
-		}
 	}
 }
 
@@ -1523,8 +1386,6 @@ static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
 		rcv_desc->begin_alloc = index;
 		rcv_desc->rcv_pending += count;
 		rcv_desc->producer = producer;
-		if (rcv_desc->rcv_free >= 32) {
-			rcv_desc->rcv_free = 0;
 			/* Window = 1 */
 			writel((producer - 1) &
 			       (rcv_desc->max_rx_desc_count - 1),
@@ -1534,21 +1395,9 @@ static void netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
 						    rcv_desc_crb[ringid].
 						    crb_rcv_producer_offset));
 			wmb();
-		}
 	}
 }
 
-int netxen_nic_tx_has_work(struct netxen_adapter *adapter)
-{
-	if (find_diff_among(adapter->last_cmd_consumer,
-			    adapter->cmd_producer,
-			    adapter->max_tx_desc_count) > 0)
-		return 1;
-
-	return 0;
-}
-
-
 void netxen_nic_clear_stats(struct netxen_adapter *adapter)
 {
 	memset(&adapter->stats, 0, sizeof(adapter->stats));
diff --git a/drivers/net/netxen/netxen_nic_isr.c b/drivers/net/netxen/netxen_nic_isr.c
index 48a404aa66c..c81313b717b 100644
--- a/drivers/net/netxen/netxen_nic_isr.c
+++ b/drivers/net/netxen/netxen_nic_isr.c
@@ -59,7 +59,7 @@ struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
 	/* packet transmit problems */
 	stats->tx_errors = adapter->stats.nocmddescriptor;
 	/* no space in linux buffers    */
-	stats->rx_dropped = adapter->stats.updropped;
+	stats->rx_dropped = adapter->stats.rxdropped;
 	/* no space available in linux  */
 	stats->tx_dropped = adapter->stats.txdropped;
 
@@ -193,14 +193,14 @@ int netxen_nic_link_ok(struct netxen_adapter *adapter)
 void netxen_nic_xgbe_handle_phy_intr(struct netxen_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
-	u32 val, val1;
+	u32 val;
 
 	/* WINDOW = 1 */
 	val = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_XG_STATE));
 	val >>= (physical_port[adapter->portnum] * 8);
-	val1 = val & 0xff;
+	val &= 0xff;
 
-	if (adapter->ahw.xg_linkup == 1 && val1 != XG_LINK_UP) {
+	if (adapter->ahw.xg_linkup == 1 && val != XG_LINK_UP) {
 		printk(KERN_INFO "%s: %s NIC Link is down\n",
 		       netxen_nic_driver_name, netdev->name);
 		adapter->ahw.xg_linkup = 0;
@@ -208,16 +208,7 @@ void netxen_nic_xgbe_handle_phy_intr(struct netxen_adapter *adapter)
 			netif_carrier_off(netdev);
 			netif_stop_queue(netdev);
 		}
-		/* read twice to clear sticky bits */
-		/* WINDOW = 0 */
-		netxen_nic_read_w0(adapter, NETXEN_NIU_XG_STATUS, &val1);
-		netxen_nic_read_w0(adapter, NETXEN_NIU_XG_STATUS, &val1);
-
-		if ((val & 0xffb) != 0xffb) {
-			printk(KERN_INFO "%s ISR: Sync/Align BAD: 0x%08x\n",
-			       netxen_nic_driver_name, val1);
-		}
-	} else if (adapter->ahw.xg_linkup == 0 && val1 == XG_LINK_UP) {
+	} else if (adapter->ahw.xg_linkup == 0 && val == XG_LINK_UP) {
 		printk(KERN_INFO "%s: %s NIC Link is up\n",
 		       netxen_nic_driver_name, netdev->name);
 		adapter->ahw.xg_linkup = 1;
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index 9737eae5ef1..a8fb439a4d0 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -63,12 +63,12 @@ static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *);
 static void netxen_tx_timeout(struct net_device *netdev);
 static void netxen_tx_timeout_task(struct work_struct *work);
 static void netxen_watchdog(unsigned long);
-static int netxen_handle_int(struct netxen_adapter *, struct net_device *);
 static int netxen_nic_poll(struct napi_struct *napi, int budget);
 #ifdef CONFIG_NET_POLL_CONTROLLER
 static void netxen_nic_poll_controller(struct net_device *netdev);
 #endif
 static irqreturn_t netxen_intr(int irq, void *data);
+static irqreturn_t netxen_msi_intr(int irq, void *data);
 
 int physical_port[] = {0, 1, 2, 3};
 
@@ -149,33 +149,30 @@ static void netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
 
 #define	ADAPTER_LIST_SIZE 12
 
+static uint32_t msi_tgt_status[4] = {
+	ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
+	ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3
+};
+
+static uint32_t sw_int_mask[4] = {
+	CRB_SW_INT_MASK_0, CRB_SW_INT_MASK_1,
+	CRB_SW_INT_MASK_2, CRB_SW_INT_MASK_3
+};
+
 static void netxen_nic_disable_int(struct netxen_adapter *adapter)
 {
-	uint32_t	mask = 0x7ff;
+	u32 mask = 0x7ff;
 	int retries = 32;
+	int port = adapter->portnum;
+	int pci_fn = adapter->ahw.pci_func;
 
-	DPRINTK(1, INFO, "Entered ISR Disable \n");
-
-	switch (adapter->portnum) {
-	case 0:
-		writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_0));
-		break;
-	case 1:
-		writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_1));
-		break;
-	case 2:
-		writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_2));
-		break;
-	case 3:
-		writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_3));
-		break;
-	}
+	if (adapter->msi_mode != MSI_MODE_MULTIFUNC)
+		writel(0x0, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port]));
 
 	if (adapter->intr_scheme != -1 &&
 	    adapter->intr_scheme != INTR_SCHEME_PERPORT)
 		writel(mask,PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK));
 
-	/* Window = 0 or 1 */
 	if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
 		do {
 			writel(0xffffffff,
@@ -190,14 +187,18 @@ static void netxen_nic_disable_int(struct netxen_adapter *adapter)
 			printk(KERN_NOTICE "%s: Failed to disable interrupt completely\n",
 					netxen_nic_driver_name);
 		}
+	} else {
+		if (adapter->msi_mode == MSI_MODE_MULTIFUNC) {
+			writel(0xffffffff, PCI_OFFSET_SECOND_RANGE(adapter,
+						msi_tgt_status[pci_fn]));
+		}
 	}
-
-	DPRINTK(1, INFO, "Done with Disable Int\n");
 }
 
 static void netxen_nic_enable_int(struct netxen_adapter *adapter)
 {
 	u32 mask;
+	int port = adapter->portnum;
 
 	DPRINTK(1, INFO, "Entered ISR Enable \n");
 
@@ -218,20 +219,7 @@ static void netxen_nic_enable_int(struct netxen_adapter *adapter)
 		writel(mask, PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK));
 	}
 
-	switch (adapter->portnum) {
-	case 0:
-		writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_0));
-		break;
-	case 1:
-		writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_1));
-		break;
-	case 2:
-		writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_2));
-		break;
-	case 3:
-		writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_3));
-		break;
-	}
+	writel(0x1, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port]));
 
 	if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
 		mask = 0xbff;
@@ -328,7 +316,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	adapter->ahw.pdev = pdev;
 	adapter->ahw.pci_func  = pci_func_id;
-	spin_lock_init(&adapter->tx_lock);
 
 	/* remap phys address */
 	mem_base = pci_resource_start(pdev, 0);	/* 0 is for BAR 0 */
@@ -401,6 +388,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	/* this will be read from FW later */
 	adapter->intr_scheme = -1;
+	adapter->msi_mode = -1;
 
 	/* This will be reset for mezz cards  */
 	adapter->portnum = pci_func_id;
@@ -415,7 +403,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	netdev->set_mac_address    = netxen_nic_set_mac;
 	netdev->change_mtu	   = netxen_nic_change_mtu;
 	netdev->tx_timeout	   = netxen_tx_timeout;
-	netdev->watchdog_timeo     = HZ;
+	netdev->watchdog_timeo     = 2*HZ;
 
 	netxen_nic_change_mtu(netdev, netdev->mtu);
 
@@ -543,7 +531,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	adapter->watchdog_timer.data = (unsigned long)adapter;
 	INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
 	adapter->ahw.pdev = pdev;
-	adapter->proc_cmd_buf_counter = 0;
 	adapter->ahw.revision_id = pdev->revision;
 
 	/* make sure Window == 1 */
@@ -833,6 +820,8 @@ static int netxen_nic_open(struct net_device *netdev)
 	struct netxen_adapter *adapter = (struct netxen_adapter *)netdev->priv;
 	int err = 0;
 	int ctx, ring;
+	irq_handler_t handler;
+	unsigned long flags = IRQF_SAMPLE_RANDOM;
 
 	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) {
 		err = netxen_init_firmware(adapter);
@@ -856,9 +845,14 @@ static int netxen_nic_open(struct net_device *netdev)
 				netxen_post_rx_buffers(adapter, ctx, ring);
 		}
 		adapter->irq = adapter->ahw.pdev->irq;
-		err = request_irq(adapter->ahw.pdev->irq, netxen_intr,
-				  IRQF_SHARED|IRQF_SAMPLE_RANDOM, netdev->name,
-				  adapter);
+		if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
+			handler = netxen_msi_intr;
+		else {
+			flags |= IRQF_SHARED;
+			handler = netxen_intr;
+		}
+		err = request_irq(adapter->irq, handler,
+				  flags, netdev->name, adapter);
 		if (err) {
 			printk(KERN_ERR "request_irq failed with: %d\n", err);
 			netxen_free_hw_resources(adapter);
@@ -867,21 +861,12 @@ static int netxen_nic_open(struct net_device *netdev)
 
 		adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
 	}
-	if (!adapter->driver_mismatch)
-		mod_timer(&adapter->watchdog_timer, jiffies);
-
-	napi_enable(&adapter->napi);
-
-	netxen_nic_enable_int(adapter);
-
 	/* Done here again so that even if phantom sw overwrote it,
 	 * we set it */
 	if (adapter->init_port
 	    && adapter->init_port(adapter, adapter->portnum) != 0) {
-	    del_timer_sync(&adapter->watchdog_timer);
 		printk(KERN_ERR "%s: Failed to initialize port %d\n",
 				netxen_nic_driver_name, adapter->portnum);
-		napi_disable(&adapter->napi);
 		return -EIO;
 	}
 	if (adapter->macaddr_set)
@@ -894,6 +879,12 @@ static int netxen_nic_open(struct net_device *netdev)
 		adapter->set_mtu(adapter, netdev->mtu);
 
 	if (!adapter->driver_mismatch)
+		mod_timer(&adapter->watchdog_timer, jiffies);
+
+	napi_enable(&adapter->napi);
+	netxen_nic_enable_int(adapter);
+
+	if (!adapter->driver_mismatch)
 		netif_start_queue(netdev);
 
 	return 0;
@@ -958,41 +949,17 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 	struct netxen_skb_frag *buffrag;
 	unsigned int i;
 
-	u32 producer = 0;
+	u32 producer, consumer;
 	u32 saved_producer = 0;
 	struct cmd_desc_type0 *hwdesc;
 	int k;
 	struct netxen_cmd_buffer *pbuf = NULL;
-	static int dropped_packet = 0;
 	int frag_count;
-	u32 local_producer = 0;
-	u32 max_tx_desc_count = 0;
-	u32 last_cmd_consumer = 0;
 	int no_of_desc;
+	u32 num_txd = adapter->max_tx_desc_count;
 
-	adapter->stats.xmitcalled++;
 	frag_count = skb_shinfo(skb)->nr_frags + 1;
 
-	if (unlikely(skb->len <= 0)) {
-		dev_kfree_skb_any(skb);
-		adapter->stats.badskblen++;
-		return NETDEV_TX_OK;
-	}
-
-	if (frag_count > MAX_BUFFERS_PER_CMD) {
-		printk("%s: %s netxen_nic_xmit_frame: frag_count (%d) "
-		       "too large, can handle only %d frags\n",
-		       netxen_nic_driver_name, netdev->name,
-		       frag_count, MAX_BUFFERS_PER_CMD);
-		adapter->stats.txdropped++;
-		if ((++dropped_packet & 0xff) == 0xff)
-			printk("%s: %s droppped packets = %d\n",
-			       netxen_nic_driver_name, netdev->name,
-			       dropped_packet);
-
-		return NETDEV_TX_OK;
-	}
-
 	/* There 4 fragments per descriptor */
 	no_of_desc = (frag_count + 3) >> 2;
 	if (netdev->features & NETIF_F_TSO) {
@@ -1007,27 +974,16 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 		}
 	}
 
-	spin_lock_bh(&adapter->tx_lock);
-	if (adapter->total_threads >= MAX_XMIT_PRODUCERS) {
-		goto out_requeue;
-	}
-	local_producer = adapter->cmd_producer;
-	k = adapter->cmd_producer;
-	max_tx_desc_count = adapter->max_tx_desc_count;
-	last_cmd_consumer = adapter->last_cmd_consumer;
-	if ((k + no_of_desc) >=
-	    ((last_cmd_consumer <= k) ? last_cmd_consumer + max_tx_desc_count :
-	     last_cmd_consumer)) {
-		goto out_requeue;
+	producer = adapter->cmd_producer;
+	smp_mb();
+	consumer = adapter->last_cmd_consumer;
+	if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) {
+		netif_stop_queue(netdev);
+		smp_mb();
+		return NETDEV_TX_BUSY;
 	}
-	k = get_index_range(k, max_tx_desc_count, no_of_desc);
-	adapter->cmd_producer = k;
-	adapter->total_threads++;
-	adapter->num_threads++;
 
-	spin_unlock_bh(&adapter->tx_lock);
 	/* Copy the descriptors into the hardware    */
-	producer = local_producer;
 	saved_producer = producer;
 	hwdesc = &hw->cmd_desc_head[producer];
 	memset(hwdesc, 0, sizeof(struct cmd_desc_type0));
@@ -1067,8 +1023,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 		/* move to next desc. if there is a need */
 		if ((i & 0x3) == 0) {
 			k = 0;
-			producer = get_next_index(producer,
-						  adapter->max_tx_desc_count);
+			producer = get_next_index(producer, num_txd);
 			hwdesc = &hw->cmd_desc_head[producer];
 			memset(hwdesc, 0, sizeof(struct cmd_desc_type0));
 			pbuf = &adapter->cmd_buf_arr[producer];
@@ -1086,7 +1041,6 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 		buffrag->dma = temp_dma;
 		buffrag->length = temp_len;
 
-		DPRINTK(INFO, "for loop. i=%d k=%d\n", i, k);
 		switch (k) {
 		case 0:
 			hwdesc->buffer1_length = cpu_to_le16(temp_len);
@@ -1107,7 +1061,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 		}
 		frag++;
 	}
-	producer = get_next_index(producer, adapter->max_tx_desc_count);
+	producer = get_next_index(producer, num_txd);
 
 	/* might change opcode to TX_TCP_LSO */
 	netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb);
@@ -1134,7 +1088,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 		/* copy the first 64 bytes */
 		memcpy(((void *)hwdesc) + 2,
 		       (void *)(skb->data), first_hdr_len);
-		producer = get_next_index(producer, max_tx_desc_count);
+		producer = get_next_index(producer, num_txd);
 
 		if (more_hdr) {
 			hwdesc = &hw->cmd_desc_head[producer];
@@ -1147,35 +1101,19 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 							 hwdesc,
 							 (hdr_len -
 							  first_hdr_len));
-			producer = get_next_index(producer, max_tx_desc_count);
+			producer = get_next_index(producer, num_txd);
 		}
 	}
 
-	spin_lock_bh(&adapter->tx_lock);
+	adapter->cmd_producer = producer;
 	adapter->stats.txbytes += skb->len;
 
-	/* Code to update the adapter considering how many producer threads
-	   are currently working */
-	if ((--adapter->num_threads) == 0) {
-		/* This is the last thread */
-		u32 crb_producer = adapter->cmd_producer;
-		netxen_nic_update_cmd_producer(adapter, crb_producer);
-		wmb();
-		adapter->total_threads = 0;
-	}
+	netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer);
 
-	adapter->stats.xmitfinished++;
+	adapter->stats.xmitcalled++;
 	netdev->trans_start = jiffies;
 
-	spin_unlock_bh(&adapter->tx_lock);
 	return NETDEV_TX_OK;
-
-out_requeue:
-	netif_stop_queue(netdev);
-	adapter->flags |= NETXEN_NETDEV_STATUS;
-
-	spin_unlock_bh(&adapter->tx_lock);
-	return NETDEV_TX_BUSY;
 }
 
 static void netxen_watchdog(unsigned long v)
@@ -1200,87 +1138,60 @@ static void netxen_tx_timeout_task(struct work_struct *work)
 	printk(KERN_ERR "%s %s: transmit timeout, resetting.\n",
 	       netxen_nic_driver_name, adapter->netdev->name);
 
-	netxen_nic_close(adapter->netdev);
-	netxen_nic_open(adapter->netdev);
+	netxen_nic_disable_int(adapter);
+	napi_disable(&adapter->napi);
+
 	adapter->netdev->trans_start = jiffies;
+
+	napi_enable(&adapter->napi);
+	netxen_nic_enable_int(adapter);
 	netif_wake_queue(adapter->netdev);
 }
 
-static int
-netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev)
+static inline void
+netxen_handle_int(struct netxen_adapter *adapter)
 {
-	u32 ret = 0;
-
-	DPRINTK(INFO, "Entered handle ISR\n");
-	adapter->stats.ints++;
-
 	netxen_nic_disable_int(adapter);
-
-	if (netxen_nic_rx_has_work(adapter) || netxen_nic_tx_has_work(adapter)) {
-		if (netif_rx_schedule_prep(netdev, &adapter->napi)) {
-			/*
-			 * Interrupts are already disabled.
-			 */
-			__netif_rx_schedule(netdev, &adapter->napi);
-		} else {
-			static unsigned int intcount = 0;
-			if ((++intcount & 0xfff) == 0xfff)
-				DPRINTK(KERN_ERR
-				       "%s: %s interrupt %d while in poll\n",
-				       netxen_nic_driver_name, netdev->name,
-				       intcount);
-		}
-		ret = 1;
-	}
-
-	if (ret == 0) {
-		netxen_nic_enable_int(adapter);
-	}
-
-	return ret;
+	napi_schedule(&adapter->napi);
 }
 
-/*
- * netxen_intr - Interrupt Handler
- * @irq: interrupt number
- * data points to adapter stucture (which may be handling more than 1 port
- */
 irqreturn_t netxen_intr(int irq, void *data)
 {
 	struct netxen_adapter *adapter = data;
-	struct net_device *netdev = adapter->netdev;
 	u32 our_int = 0;
 
-	if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
-		our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
-		/* not our interrupt */
-		if ((our_int & (0x80 << adapter->portnum)) == 0)
-			return IRQ_NONE;
-	}
+	our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
+	/* not our interrupt */
+	if ((our_int & (0x80 << adapter->portnum)) == 0)
+		return IRQ_NONE;
 
 	if (adapter->intr_scheme == INTR_SCHEME_PERPORT) {
 		/* claim interrupt */
-		if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
-			writel(our_int & ~((u32)(0x80 << adapter->portnum)),
+		writel(our_int & ~((u32)(0x80 << adapter->portnum)),
 			NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
-		}
 	}
 
-	if (netif_running(netdev))
-		netxen_handle_int(adapter, netdev);
+	netxen_handle_int(adapter);
 
 	return IRQ_HANDLED;
 }
 
+irqreturn_t netxen_msi_intr(int irq, void *data)
+{
+	struct netxen_adapter *adapter = data;
+
+	netxen_handle_int(adapter);
+	return IRQ_HANDLED;
+}
+
 static int netxen_nic_poll(struct napi_struct *napi, int budget)
 {
 	struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi);
-	struct net_device *netdev = adapter->netdev;
-	int done = 1;
+	int tx_complete;
 	int ctx;
 	int work_done;
 
-	DPRINTK(INFO, "polling for %d descriptors\n", *budget);
+	tx_complete = netxen_process_cmd_ring(adapter);
 
 	work_done = 0;
 	for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
@@ -1300,16 +1211,8 @@ static int netxen_nic_poll(struct napi_struct *napi, int budget)
 						     budget / MAX_RCV_CTX);
 	}
 
-	if (work_done >= budget)
-		done = 0;
-
-	if (netxen_process_cmd_ring((unsigned long)adapter) == 0)
-		done = 0;
-
-	DPRINTK(INFO, "new work_done: %d work_to_do: %d\n",
-		work_done, work_to_do);
-	if (done) {
-		netif_rx_complete(netdev, napi);
+	if ((work_done < budget) && tx_complete) {
+		netif_rx_complete(adapter->netdev, &adapter->napi);
 		netxen_nic_enable_int(adapter);
 	}
 
diff --git a/drivers/net/netxen/netxen_nic_phan_reg.h b/drivers/net/netxen/netxen_nic_phan_reg.h
index ffa3b7215ce..a566b50f36f 100644
--- a/drivers/net/netxen/netxen_nic_phan_reg.h
+++ b/drivers/net/netxen/netxen_nic_phan_reg.h
@@ -126,8 +126,11 @@
  */
 #define CRB_NIC_CAPABILITIES_HOST	NETXEN_NIC_REG(0x1a8)
 #define CRB_NIC_CAPABILITIES_FW	  	NETXEN_NIC_REG(0x1dc)
+#define CRB_NIC_MSI_MODE_HOST		NETXEN_NIC_REG(0x270)
+#define CRB_NIC_MSI_MODE_FW	  		NETXEN_NIC_REG(0x274)
 
 #define INTR_SCHEME_PERPORT	      	0x1
+#define MSI_MODE_MULTIFUNC	      	0x1
 
 /* used for ethtool tests */
 #define CRB_SCRATCHPAD_TEST	    NETXEN_NIC_REG(0x280)