Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 3481 insertions, 0 deletions

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
new file mode 100644
index 000000000..2c5460083
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -0,0 +1,3481 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2003 - 2009 NetXen, Inc.
+ * Copyright (C) 2009 - QLogic Corporation.
+ * All rights reserved.
+ */
+
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/interrupt.h>
+#include "netxen_nic_hw.h"
+
+#include "netxen_nic.h"
+
+#include <linux/dma-mapping.h>
+#include <linux/if_vlan.h>
+#include <net/ip.h>
+#include <linux/ipv6.h>
+#include <linux/inetdevice.h>
+#include <linux/sysfs.h>
+#include <linux/aer.h>
+
+MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
+MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
+
+char netxen_nic_driver_name[] = "netxen_nic";
+static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
+    NETXEN_NIC_LINUX_VERSIONID;
+
+static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
+
+/* Default to restricted 1G auto-neg mode */
+static int wol_port_mode = 5;
+
+static int use_msi = 1;
+
+static int use_msi_x = 1;
+
+static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
+module_param(auto_fw_reset, int, 0644);
+MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
+
+static int netxen_nic_probe(struct pci_dev *pdev,
+		const struct pci_device_id *ent);
+static void netxen_nic_remove(struct pci_dev *pdev);
+static int netxen_nic_open(struct net_device *netdev);
+static int netxen_nic_close(struct net_device *netdev);
+static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
+					       struct net_device *);
+static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue);
+static void netxen_tx_timeout_task(struct work_struct *work);
+static void netxen_fw_poll_work(struct work_struct *work);
+static void netxen_schedule_work(struct netxen_adapter *adapter,
+		work_func_t func, int delay);
+static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
+static int netxen_nic_poll(struct napi_struct *napi, int budget);
+
+static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
+static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
+static void netxen_create_diag_entries(struct netxen_adapter *adapter);
+static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
+static int nx_dev_request_aer(struct netxen_adapter *adapter);
+static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
+static int netxen_can_start_firmware(struct netxen_adapter *adapter);
+
+static irqreturn_t netxen_intr(int irq, void *data);
+static irqreturn_t netxen_msi_intr(int irq, void *data);
+static irqreturn_t netxen_msix_intr(int irq, void *data);
+
+static void netxen_free_ip_list(struct netxen_adapter *, bool);
+static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
+static void netxen_nic_get_stats(struct net_device *dev,
+				 struct rtnl_link_stats64 *stats);
+static int netxen_nic_set_mac(struct net_device *netdev, void *p);
+
+/*  PCI Device ID Table  */
+#define ENTRY(device) \
+	{PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
+	.class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
+
+static const struct pci_device_id netxen_pci_tbl[] = {
+	ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
+	ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
+	ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
+	ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
+	ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
+	ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
+	ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
+	ENTRY(PCI_DEVICE_ID_NX3031),
+	{0,}
+};
+
+MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
+
+static uint32_t crb_cmd_producer[4] = {
+	CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
+	CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
+};
+
+void
+netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
+		struct nx_host_tx_ring *tx_ring)
+{
+	NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
+}
+
+static uint32_t crb_cmd_consumer[4] = {
+	CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
+	CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
+};
+
+static inline void
+netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
+		struct nx_host_tx_ring *tx_ring)
+{
+	NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
+}
+
+static uint32_t msi_tgt_status[8] = {
+	ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
+	ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
+	ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
+	ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
+};
+
+static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
+
+static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
+{
+	struct netxen_adapter *adapter = sds_ring->adapter;
+
+	NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
+}
+
+static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
+{
+	struct netxen_adapter *adapter = sds_ring->adapter;
+
+	NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
+
+	if (!NETXEN_IS_MSI_FAMILY(adapter))
+		NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
+}
+
+static int
+netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
+{
+	int size = sizeof(struct nx_host_sds_ring) * count;
+
+	recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
+
+	return recv_ctx->sds_rings == NULL;
+}
+
+static void
+netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
+{
+	kfree(recv_ctx->sds_rings);
+	recv_ctx->sds_rings = NULL;
+}
+
+static int
+netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
+{
+	int ring;
+	struct nx_host_sds_ring *sds_ring;
+	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+
+	if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
+		return -ENOMEM;
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+		netif_napi_add(netdev, &sds_ring->napi,
+				netxen_nic_poll, NAPI_POLL_WEIGHT);
+	}
+
+	return 0;
+}
+
+static void
+netxen_napi_del(struct netxen_adapter *adapter)
+{
+	int ring;
+	struct nx_host_sds_ring *sds_ring;
+	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+		netif_napi_del(&sds_ring->napi);
+	}
+
+	netxen_free_sds_rings(&adapter->recv_ctx);
+}
+
+static void
+netxen_napi_enable(struct netxen_adapter *adapter)
+{
+	int ring;
+	struct nx_host_sds_ring *sds_ring;
+	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+		napi_enable(&sds_ring->napi);
+		netxen_nic_enable_int(sds_ring);
+	}
+}
+
+static void
+netxen_napi_disable(struct netxen_adapter *adapter)
+{
+	int ring;
+	struct nx_host_sds_ring *sds_ring;
+	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+		netxen_nic_disable_int(sds_ring);
+		napi_synchronize(&sds_ring->napi);
+		napi_disable(&sds_ring->napi);
+	}
+}
+
+static int nx_set_dma_mask(struct netxen_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	uint64_t mask, cmask;
+
+	adapter->pci_using_dac = 0;
+
+	mask = DMA_BIT_MASK(32);
+	cmask = DMA_BIT_MASK(32);
+
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+#ifndef CONFIG_IA64
+		mask = DMA_BIT_MASK(35);
+#endif
+	} else {
+		mask = DMA_BIT_MASK(39);
+		cmask = mask;
+	}
+
+	if (pci_set_dma_mask(pdev, mask) == 0 &&
+		pci_set_consistent_dma_mask(pdev, cmask) == 0) {
+		adapter->pci_using_dac = 1;
+		return 0;
+	}
+
+	return -EIO;
+}
+
+/* Update addressable range if firmware supports it */
+static int
+nx_update_dma_mask(struct netxen_adapter *adapter)
+{
+	int change, shift, err;
+	uint64_t mask, old_mask, old_cmask;
+	struct pci_dev *pdev = adapter->pdev;
+
+	change = 0;
+
+	shift = NXRD32(adapter, CRB_DMA_SHIFT);
+	if (shift > 32)
+		return 0;
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
+		change = 1;
+	else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
+		change = 1;
+
+	if (change) {
+		old_mask = pdev->dma_mask;
+		old_cmask = pdev->dev.coherent_dma_mask;
+
+		mask = DMA_BIT_MASK(32+shift);
+
+		err = pci_set_dma_mask(pdev, mask);
+		if (err)
+			goto err_out;
+
+		if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+
+			err = pci_set_consistent_dma_mask(pdev, mask);
+			if (err)
+				goto err_out;
+		}
+		dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
+	}
+
+	return 0;
+
+err_out:
+	pci_set_dma_mask(pdev, old_mask);
+	pci_set_consistent_dma_mask(pdev, old_cmask);
+	return err;
+}
+
+static int
+netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
+{
+	u32 val, timeout;
+
+	if (first_boot == 0x55555555) {
+		/* This is the first boot after power up */
+		NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
+
+		if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
+			return 0;
+
+		/* PCI bus master workaround */
+		first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
+		if (!(first_boot & 0x4)) {
+			first_boot |= 0x4;
+			NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
+			NXRD32(adapter, NETXEN_PCIE_REG(0x4));
+		}
+
+		/* This is the first boot after power up */
+		first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
+		if (first_boot != 0x80000f) {
+			/* clear the register for future unloads/loads */
+			NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
+			return -EIO;
+		}
+
+		/* Start P2 boot loader */
+		val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
+		NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
+		timeout = 0;
+		do {
+			msleep(1);
+			val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
+
+			if (++timeout > 5000)
+				return -EIO;
+
+		} while (val == NETXEN_BDINFO_MAGIC);
+	}
+	return 0;
+}
+
+static void netxen_set_port_mode(struct netxen_adapter *adapter)
+{
+	u32 val, data;
+
+	val = adapter->ahw.board_type;
+	if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
+		(val == NETXEN_BRDTYPE_P3_XG_LOM)) {
+		if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
+			data = NETXEN_PORT_MODE_802_3_AP;
+			NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
+		} else if (port_mode == NETXEN_PORT_MODE_XG) {
+			data = NETXEN_PORT_MODE_XG;
+			NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
+		} else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
+			data = NETXEN_PORT_MODE_AUTO_NEG_1G;
+			NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
+		} else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
+			data = NETXEN_PORT_MODE_AUTO_NEG_XG;
+			NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
+		} else {
+			data = NETXEN_PORT_MODE_AUTO_NEG;
+			NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
+		}
+
+		if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
+			(wol_port_mode != NETXEN_PORT_MODE_XG) &&
+			(wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
+			(wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
+			wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
+		}
+		NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
+	}
+}
+
+#define PCI_CAP_ID_GEN  0x10
+
+static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
+{
+	u32 pdevfuncsave;
+	u32 c8c9value = 0;
+	u32 chicken = 0;
+	u32 control = 0;
+	int i, pos;
+	struct pci_dev *pdev;
+
+	pdev = adapter->pdev;
+
+	chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
+	/* clear chicken3.25:24 */
+	chicken &= 0xFCFFFFFF;
+	/*
+	 * if gen1 and B0, set F1020 - if gen 2, do nothing
+	 * if gen2 set to F1000
+	 */
+	pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
+	if (pos == 0xC0) {
+		pci_read_config_dword(pdev, pos + 0x10, &control);
+		if ((control & 0x000F0000) != 0x00020000) {
+			/*  set chicken3.24 if gen1 */
+			chicken |= 0x01000000;
+		}
+		dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
+		c8c9value = 0xF1000;
+	} else {
+		/* set chicken3.24 if gen1 */
+		chicken |= 0x01000000;
+		dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
+		if (adapter->ahw.revision_id == NX_P3_B0)
+			c8c9value = 0xF1020;
+		else
+			c8c9value = 0;
+	}
+
+	NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
+
+	if (!c8c9value)
+		return;
+
+	pdevfuncsave = pdev->devfn;
+	if (pdevfuncsave & 0x07)
+		return;
+
+	for (i = 0; i < 8; i++) {
+		pci_read_config_dword(pdev, pos + 8, &control);
+		pci_read_config_dword(pdev, pos + 8, &control);
+		pci_write_config_dword(pdev, pos + 8, c8c9value);
+		pdev->devfn++;
+	}
+	pdev->devfn = pdevfuncsave;
+}
+
+static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
+{
+	u32 control;
+
+	if (pdev->msix_cap) {
+		pci_read_config_dword(pdev, pdev->msix_cap, &control);
+		if (enable)
+			control |= PCI_MSIX_FLAGS_ENABLE;
+		else
+			control = 0;
+		pci_write_config_dword(pdev, pdev->msix_cap, control);
+	}
+}
+
+static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
+{
+	int i;
+
+	for (i = 0; i < count; i++)
+		adapter->msix_entries[i].entry = i;
+}
+
+static int
+netxen_read_mac_addr(struct netxen_adapter *adapter)
+{
+	int i;
+	unsigned char *p;
+	u64 mac_addr;
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+		if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
+			return -EIO;
+	} else {
+		if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
+			return -EIO;
+	}
+
+	p = (unsigned char *)&mac_addr;
+	for (i = 0; i < 6; i++)
+		netdev->dev_addr[i] = *(p + 5 - i);
+
+	memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
+
+	/* set station address */
+
+	if (!is_valid_ether_addr(netdev->dev_addr))
+		dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
+
+	return 0;
+}
+
+static int netxen_nic_set_mac(struct net_device *netdev, void *p)
+{
+	struct netxen_adapter *adapter = netdev_priv(netdev);
+	struct sockaddr *addr = p;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	if (netif_running(netdev)) {
+		netif_device_detach(netdev);
+		netxen_napi_disable(adapter);
+	}
+
+	memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
+	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+	adapter->macaddr_set(adapter, addr->sa_data);
+
+	if (netif_running(netdev)) {
+		netif_device_attach(netdev);
+		netxen_napi_enable(adapter);
+	}
+	return 0;
+}
+
+static void netxen_set_multicast_list(struct net_device *dev)
+{
+	struct netxen_adapter *adapter = netdev_priv(dev);
+
+	adapter->set_multi(dev);
+}
+
+static netdev_features_t netxen_fix_features(struct net_device *dev,
+	netdev_features_t features)
+{
+	if (!(features & NETIF_F_RXCSUM)) {
+		netdev_info(dev, "disabling LRO as RXCSUM is off\n");
+
+		features &= ~NETIF_F_LRO;
+	}
+
+	return features;
+}
+
+static int netxen_set_features(struct net_device *dev,
+	netdev_features_t features)
+{
+	struct netxen_adapter *adapter = netdev_priv(dev);
+	int hw_lro;
+
+	if (!((dev->features ^ features) & NETIF_F_LRO))
+		return 0;
+
+	hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
+	         : NETXEN_NIC_LRO_DISABLED;
+
+	if (netxen_config_hw_lro(adapter, hw_lro))
+		return -EIO;
+
+	if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
+		return -EIO;
+
+	return 0;
+}
+
+static const struct net_device_ops netxen_netdev_ops = {
+	.ndo_open	   = netxen_nic_open,
+	.ndo_stop	   = netxen_nic_close,
+	.ndo_start_xmit    = netxen_nic_xmit_frame,
+	.ndo_get_stats64   = netxen_nic_get_stats,
+	.ndo_validate_addr = eth_validate_addr,
+	.ndo_set_rx_mode   = netxen_set_multicast_list,
+	.ndo_set_mac_address    = netxen_nic_set_mac,
+	.ndo_change_mtu	   = netxen_nic_change_mtu,
+	.ndo_tx_timeout	   = netxen_tx_timeout,
+	.ndo_fix_features = netxen_fix_features,
+	.ndo_set_features = netxen_set_features,
+};
+
+static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
+					     u32 mode)
+{
+	NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
+}
+
+static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
+{
+	return NXRD32(adapter, NETXEN_INTR_MODE_REG);
+}
+
+static void
+netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
+{
+	struct netxen_legacy_intr_set *legacy_intrp;
+	u32 tgt_status_reg, int_state_reg;
+
+	if (adapter->ahw.revision_id >= NX_P3_B0)
+		legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
+	else
+		legacy_intrp = &legacy_intr[0];
+
+	tgt_status_reg = legacy_intrp->tgt_status_reg;
+	int_state_reg = ISR_INT_STATE_REG;
+
+	adapter->int_vec_bit = legacy_intrp->int_vec_bit;
+	adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
+	adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
+						  legacy_intrp->tgt_mask_reg);
+	adapter->pci_int_reg = netxen_get_ioaddr(adapter,
+						 legacy_intrp->pci_int_reg);
+	adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
+
+	if (adapter->ahw.revision_id >= NX_P3_B1)
+		adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
+							       int_state_reg);
+	else
+		adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
+							       CRB_INT_VECTOR);
+}
+
+static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
+				       int num_msix)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	u32 value;
+	int err;
+
+	if (adapter->msix_supported) {
+		netxen_init_msix_entries(adapter, num_msix);
+		err = pci_enable_msix_range(pdev, adapter->msix_entries,
+					    num_msix, num_msix);
+		if (err > 0) {
+			adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
+			netxen_set_msix_bit(pdev, 1);
+
+			if (adapter->rss_supported)
+				adapter->max_sds_rings = num_msix;
+
+			dev_info(&pdev->dev, "using msi-x interrupts\n");
+			return 0;
+		}
+		/* fall through for msi */
+	}
+
+	if (use_msi && !pci_enable_msi(pdev)) {
+		value = msi_tgt_status[adapter->ahw.pci_func];
+		adapter->flags |= NETXEN_NIC_MSI_ENABLED;
+		adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
+		adapter->msix_entries[0].vector = pdev->irq;
+		dev_info(&pdev->dev, "using msi interrupts\n");
+		return 0;
+	}
+
+	dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
+	return -EIO;
+}
+
+static int netxen_setup_intr(struct netxen_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	int num_msix;
+
+	if (adapter->rss_supported)
+		num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
+			    MSIX_ENTRIES_PER_ADAPTER : 2;
+	else
+		num_msix = 1;
+
+	adapter->max_sds_rings = 1;
+	adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
+
+	netxen_initialize_interrupt_registers(adapter);
+	netxen_set_msix_bit(pdev, 0);
+
+	if (adapter->portnum == 0) {
+		if (!netxen_setup_msi_interrupts(adapter, num_msix))
+			netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
+		else
+			netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
+	} else {
+		if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
+		    netxen_setup_msi_interrupts(adapter, num_msix)) {
+			dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
+			return -EIO;
+		}
+	}
+
+	if (!NETXEN_IS_MSI_FAMILY(adapter)) {
+		adapter->msix_entries[0].vector = pdev->irq;
+		dev_info(&pdev->dev, "using legacy interrupts\n");
+	}
+	return 0;
+}
+
+static void
+netxen_teardown_intr(struct netxen_adapter *adapter)
+{
+	if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
+		pci_disable_msix(adapter->pdev);
+	if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
+		pci_disable_msi(adapter->pdev);
+}
+
+static void
+netxen_cleanup_pci_map(struct netxen_adapter *adapter)
+{
+	if (adapter->ahw.db_base != NULL)
+		iounmap(adapter->ahw.db_base);
+	if (adapter->ahw.pci_base0 != NULL)
+		iounmap(adapter->ahw.pci_base0);
+	if (adapter->ahw.pci_base1 != NULL)
+		iounmap(adapter->ahw.pci_base1);
+	if (adapter->ahw.pci_base2 != NULL)
+		iounmap(adapter->ahw.pci_base2);
+}
+
+static int
+netxen_setup_pci_map(struct netxen_adapter *adapter)
+{
+	void __iomem *db_ptr = NULL;
+
+	resource_size_t mem_base, db_base;
+	unsigned long mem_len, db_len = 0;
+
+	struct pci_dev *pdev = adapter->pdev;
+	int pci_func = adapter->ahw.pci_func;
+	struct netxen_hardware_context *ahw = &adapter->ahw;
+
+	int err = 0;
+
+	/*
+	 * Set the CRB window to invalid. If any register in window 0 is
+	 * accessed it should set the window to 0 and then reset it to 1.
+	 */
+	adapter->ahw.crb_win = -1;
+	adapter->ahw.ocm_win = -1;
+
+	/* remap phys address */
+	mem_base = pci_resource_start(pdev, 0);	/* 0 is for BAR 0 */
+	mem_len = pci_resource_len(pdev, 0);
+
+	/* 128 Meg of memory */
+	if (mem_len == NETXEN_PCI_128MB_SIZE) {
+
+		ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
+		ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
+				SECOND_PAGE_GROUP_SIZE);
+		ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
+				THIRD_PAGE_GROUP_SIZE);
+		if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
+						ahw->pci_base2 == NULL) {
+			dev_err(&pdev->dev, "failed to map PCI bar 0\n");
+			err = -EIO;
+			goto err_out;
+		}
+
+		ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
+
+	} else if (mem_len == NETXEN_PCI_32MB_SIZE) {
+
+		ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
+		ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
+			SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
+		if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
+			dev_err(&pdev->dev, "failed to map PCI bar 0\n");
+			err = -EIO;
+			goto err_out;
+		}
+
+	} else if (mem_len == NETXEN_PCI_2MB_SIZE) {
+
+		ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
+		if (ahw->pci_base0 == NULL) {
+			dev_err(&pdev->dev, "failed to map PCI bar 0\n");
+			return -EIO;
+		}
+		ahw->pci_len0 = mem_len;
+	} else {
+		return -EIO;
+	}
+
+	netxen_setup_hwops(adapter);
+
+	dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
+
+	if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
+		adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
+			NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
+
+	} else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+		adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
+			NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
+	}
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+		goto skip_doorbell;
+
+	db_base = pci_resource_start(pdev, 4);	/* doorbell is on bar 4 */
+	db_len = pci_resource_len(pdev, 4);
+
+	if (db_len == 0) {
+		printk(KERN_ERR "%s: doorbell is disabled\n",
+				netxen_nic_driver_name);
+		err = -EIO;
+		goto err_out;
+	}
+
+	db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
+	if (!db_ptr) {
+		printk(KERN_ERR "%s: Failed to allocate doorbell map.",
+				netxen_nic_driver_name);
+		err = -EIO;
+		goto err_out;
+	}
+
+skip_doorbell:
+	adapter->ahw.db_base = db_ptr;
+	adapter->ahw.db_len = db_len;
+	return 0;
+
+err_out:
+	netxen_cleanup_pci_map(adapter);
+	return err;
+}
+
+static void
+netxen_check_options(struct netxen_adapter *adapter)
+{
+	u32 fw_major, fw_minor, fw_build, prev_fw_version;
+	char brd_name[NETXEN_MAX_SHORT_NAME];
+	char serial_num[32];
+	int i, offset, val, err;
+	__le32 *ptr32;
+	struct pci_dev *pdev = adapter->pdev;
+
+	adapter->driver_mismatch = 0;
+
+	ptr32 = (__le32 *)&serial_num;
+	offset = NX_FW_SERIAL_NUM_OFFSET;
+	for (i = 0; i < 8; i++) {
+		err = netxen_rom_fast_read(adapter, offset, &val);
+		if (err) {
+			dev_err(&pdev->dev, "error reading board info\n");
+			adapter->driver_mismatch = 1;
+			return;
+		}
+		ptr32[i] = cpu_to_le32(val);
+		offset += sizeof(u32);
+	}
+
+	fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
+	fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
+	fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
+	prev_fw_version = adapter->fw_version;
+	adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
+
+	/* Get FW Mini Coredump template and store it */
+	 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+		if (adapter->mdump.md_template == NULL ||
+				adapter->fw_version > prev_fw_version) {
+			kfree(adapter->mdump.md_template);
+			adapter->mdump.md_template = NULL;
+			err = netxen_setup_minidump(adapter);
+			if (err)
+				dev_err(&adapter->pdev->dev,
+				"Failed to setup minidump rcode = %d\n", err);
+		}
+	}
+
+	if (adapter->portnum == 0) {
+		if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
+						    brd_name))
+			strcpy(serial_num, "Unknown");
+
+		pr_info("%s: %s Board S/N %s  Chip rev 0x%x\n",
+				module_name(THIS_MODULE),
+				brd_name, serial_num, adapter->ahw.revision_id);
+	}
+
+	if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
+		adapter->driver_mismatch = 1;
+		dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
+				fw_major, fw_minor, fw_build);
+		return;
+	}
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+		i = NXRD32(adapter, NETXEN_SRE_MISC);
+		adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
+	}
+
+	dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
+		 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
+		 adapter->ahw.cut_through ? "cut-through" : "legacy");
+
+	if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
+		adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
+
+	if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
+		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
+		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
+	} else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
+		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
+		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
+	}
+
+	adapter->msix_supported = 0;
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+		adapter->msix_supported = !!use_msi_x;
+		adapter->rss_supported = !!use_msi_x;
+	} else {
+		u32 flashed_ver = 0;
+		netxen_rom_fast_read(adapter,
+				NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
+		flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
+
+		if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
+			switch (adapter->ahw.board_type) {
+			case NETXEN_BRDTYPE_P2_SB31_10G:
+			case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
+				adapter->msix_supported = !!use_msi_x;
+				adapter->rss_supported = !!use_msi_x;
+				break;
+			default:
+				break;
+			}
+		}
+	}
+
+	adapter->num_txd = MAX_CMD_DESCRIPTORS;
+
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+		adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
+		adapter->max_rds_rings = 3;
+	} else {
+		adapter->num_lro_rxd = 0;
+		adapter->max_rds_rings = 2;
+	}
+}
+
+static int
+netxen_start_firmware(struct netxen_adapter *adapter)
+{
+	int val, err, first_boot;
+	struct pci_dev *pdev = adapter->pdev;
+
+	/* required for NX2031 dummy dma */
+	err = nx_set_dma_mask(adapter);
+	if (err)
+		return err;
+
+	err = netxen_can_start_firmware(adapter);
+
+	if (err < 0)
+		return err;
+
+	if (!err)
+		goto wait_init;
+
+	first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
+
+	err = netxen_check_hw_init(adapter, first_boot);
+	if (err) {
+		dev_err(&pdev->dev, "error in init HW init sequence\n");
+		return err;
+	}
+
+	netxen_request_firmware(adapter);
+
+	err = netxen_need_fw_reset(adapter);
+	if (err < 0)
+		goto err_out;
+	if (err == 0)
+		goto pcie_strap_init;
+
+	if (first_boot != 0x55555555) {
+		NXWR32(adapter, CRB_CMDPEG_STATE, 0);
+		netxen_pinit_from_rom(adapter);
+		msleep(1);
+	}
+
+	NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
+	NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
+	NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+		netxen_set_port_mode(adapter);
+
+	err = netxen_load_firmware(adapter);
+	if (err)
+		goto err_out;
+
+	netxen_release_firmware(adapter);
+
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+
+		/* Initialize multicast addr pool owners */
+		val = 0x7654;
+		if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
+			val |= 0x0f000000;
+		NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
+
+	}
+
+	err = netxen_init_dummy_dma(adapter);
+	if (err)
+		goto err_out;
+
+	/*
+	 * Tell the hardware our version number.
+	 */
+	val = (_NETXEN_NIC_LINUX_MAJOR << 16)
+		| ((_NETXEN_NIC_LINUX_MINOR << 8))
+		| (_NETXEN_NIC_LINUX_SUBVERSION);
+	NXWR32(adapter, CRB_DRIVER_VERSION, val);
+
+pcie_strap_init:
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+		netxen_pcie_strap_init(adapter);
+
+wait_init:
+	/* Handshake with the card before we register the devices. */
+	err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
+	if (err) {
+		netxen_free_dummy_dma(adapter);
+		goto err_out;
+	}
+
+	NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
+
+	nx_update_dma_mask(adapter);
+
+	netxen_check_options(adapter);
+
+	adapter->need_fw_reset = 0;
+
+	/* fall through and release firmware */
+
+err_out:
+	netxen_release_firmware(adapter);
+	return err;
+}
+
+static int
+netxen_nic_request_irq(struct netxen_adapter *adapter)
+{
+	irq_handler_t handler;
+	struct nx_host_sds_ring *sds_ring;
+	int err, ring;
+
+	unsigned long flags = 0;
+	struct net_device *netdev = adapter->netdev;
+	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+
+	if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
+		handler = netxen_msix_intr;
+	else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
+		handler = netxen_msi_intr;
+	else {
+		flags |= IRQF_SHARED;
+		handler = netxen_intr;
+	}
+	adapter->irq = netdev->irq;
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+		sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
+		err = request_irq(sds_ring->irq, handler,
+				  flags, sds_ring->name, sds_ring);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+static void
+netxen_nic_free_irq(struct netxen_adapter *adapter)
+{
+	int ring;
+	struct nx_host_sds_ring *sds_ring;
+
+	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+		free_irq(sds_ring->irq, sds_ring);
+	}
+}
+
+static void
+netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
+{
+	adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
+	adapter->coal.normal.data.rx_time_us =
+		NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
+	adapter->coal.normal.data.rx_packets =
+		NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
+	adapter->coal.normal.data.tx_time_us =
+		NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
+	adapter->coal.normal.data.tx_packets =
+		NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
+}
+
+/* with rtnl_lock */
+static int
+__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
+{
+	int err;
+
+	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
+		return -EIO;
+
+	err = adapter->init_port(adapter, adapter->physical_port);
+	if (err) {
+		printk(KERN_ERR "%s: Failed to initialize port %d\n",
+				netxen_nic_driver_name, adapter->portnum);
+		return err;
+	}
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+		adapter->macaddr_set(adapter, adapter->mac_addr);
+
+	adapter->set_multi(netdev);
+	adapter->set_mtu(adapter, netdev->mtu);
+
+	adapter->ahw.linkup = 0;
+
+	if (adapter->max_sds_rings > 1)
+		netxen_config_rss(adapter, 1);
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+		netxen_config_intr_coalesce(adapter);
+
+	if (netdev->features & NETIF_F_LRO)
+		netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
+
+	netxen_napi_enable(adapter);
+
+	if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
+		netxen_linkevent_request(adapter, 1);
+	else
+		netxen_nic_set_link_parameters(adapter);
+
+	set_bit(__NX_DEV_UP, &adapter->state);
+	return 0;
+}
+
+/* Usage: During resume and firmware recovery module.*/
+
+static inline int
+netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
+{
+	int err = 0;
+
+	rtnl_lock();
+	if (netif_running(netdev))
+		err = __netxen_nic_up(adapter, netdev);
+	rtnl_unlock();
+
+	return err;
+}
+
+/* with rtnl_lock */
+static void
+__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
+{
+	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
+		return;
+
+	if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
+		return;
+
+	smp_mb();
+	netif_carrier_off(netdev);
+	netif_tx_disable(netdev);
+
+	if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
+		netxen_linkevent_request(adapter, 0);
+
+	if (adapter->stop_port)
+		adapter->stop_port(adapter);
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+		netxen_p3_free_mac_list(adapter);
+
+	adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
+
+	netxen_napi_disable(adapter);
+
+	netxen_release_tx_buffers(adapter);
+}
+
+/* Usage: During suspend and firmware recovery module */
+
+static inline void
+netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
+{
+	rtnl_lock();
+	if (netif_running(netdev))
+		__netxen_nic_down(adapter, netdev);
+	rtnl_unlock();
+
+}
+
+static int
+netxen_nic_attach(struct netxen_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+	int err, ring;
+	struct nx_host_rds_ring *rds_ring;
+	struct nx_host_tx_ring *tx_ring;
+	u32 capab2;
+
+	if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
+		return 0;
+
+	err = netxen_init_firmware(adapter);
+	if (err)
+		return err;
+
+	adapter->flags &= ~NETXEN_FW_MSS_CAP;
+	if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
+		capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
+		if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
+			adapter->flags |= NETXEN_FW_MSS_CAP;
+	}
+
+	err = netxen_napi_add(adapter, netdev);
+	if (err)
+		return err;
+
+	err = netxen_alloc_sw_resources(adapter);
+	if (err) {
+		printk(KERN_ERR "%s: Error in setting sw resources\n",
+				netdev->name);
+		return err;
+	}
+
+	err = netxen_alloc_hw_resources(adapter);
+	if (err) {
+		printk(KERN_ERR "%s: Error in setting hw resources\n",
+				netdev->name);
+		goto err_out_free_sw;
+	}
+
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+		tx_ring = adapter->tx_ring;
+		tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
+				crb_cmd_producer[adapter->portnum]);
+		tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
+				crb_cmd_consumer[adapter->portnum]);
+
+		tx_ring->producer = 0;
+		tx_ring->sw_consumer = 0;
+
+		netxen_nic_update_cmd_producer(adapter, tx_ring);
+		netxen_nic_update_cmd_consumer(adapter, tx_ring);
+	}
+
+	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+		rds_ring = &adapter->recv_ctx.rds_rings[ring];
+		netxen_post_rx_buffers(adapter, ring, rds_ring);
+	}
+
+	err = netxen_nic_request_irq(adapter);
+	if (err) {
+		dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
+				netdev->name);
+		goto err_out_free_rxbuf;
+	}
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+		netxen_nic_init_coalesce_defaults(adapter);
+
+	netxen_create_sysfs_entries(adapter);
+
+	adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
+	return 0;
+
+err_out_free_rxbuf:
+	netxen_release_rx_buffers(adapter);
+	netxen_free_hw_resources(adapter);
+err_out_free_sw:
+	netxen_free_sw_resources(adapter);
+	return err;
+}
+
+static void
+netxen_nic_detach(struct netxen_adapter *adapter)
+{
+	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
+		return;
+
+	netxen_remove_sysfs_entries(adapter);
+
+	netxen_free_hw_resources(adapter);
+	netxen_release_rx_buffers(adapter);
+	netxen_nic_free_irq(adapter);
+	netxen_napi_del(adapter);
+	netxen_free_sw_resources(adapter);
+
+	adapter->is_up = 0;
+}
+
+int
+netxen_nic_reset_context(struct netxen_adapter *adapter)
+{
+	int err = 0;
+	struct net_device *netdev = adapter->netdev;
+
+	if (test_and_set_bit(__NX_RESETTING, &adapter->state))
+		return -EBUSY;
+
+	if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
+
+		netif_device_detach(netdev);
+
+		if (netif_running(netdev))
+			__netxen_nic_down(adapter, netdev);
+
+		netxen_nic_detach(adapter);
+
+		if (netif_running(netdev)) {
+			err = netxen_nic_attach(adapter);
+			if (!err)
+				err = __netxen_nic_up(adapter, netdev);
+
+			if (err)
+				goto done;
+		}
+
+		netif_device_attach(netdev);
+	}
+
+done:
+	clear_bit(__NX_RESETTING, &adapter->state);
+	return err;
+}
+
+static int
+netxen_setup_netdev(struct netxen_adapter *adapter,
+		struct net_device *netdev)
+{
+	int err = 0;
+	struct pci_dev *pdev = adapter->pdev;
+
+	adapter->mc_enabled = 0;
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+		adapter->max_mc_count = 38;
+	else
+		adapter->max_mc_count = 16;
+
+	netdev->netdev_ops	   = &netxen_netdev_ops;
+	netdev->watchdog_timeo     = 5*HZ;
+
+	netxen_nic_change_mtu(netdev, netdev->mtu);
+
+	netdev->ethtool_ops = &netxen_nic_ethtool_ops;
+
+	netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
+	                      NETIF_F_RXCSUM;
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+		netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
+
+	netdev->vlan_features |= netdev->hw_features;
+
+	if (adapter->pci_using_dac) {
+		netdev->features |= NETIF_F_HIGHDMA;
+		netdev->vlan_features |= NETIF_F_HIGHDMA;
+	}
+
+	if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
+		netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
+
+	if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
+		netdev->hw_features |= NETIF_F_LRO;
+
+	netdev->features |= netdev->hw_features;
+
+	netdev->irq = adapter->msix_entries[0].vector;
+
+	INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
+
+	if (netxen_read_mac_addr(adapter))
+		dev_warn(&pdev->dev, "failed to read mac addr\n");
+
+	netif_carrier_off(netdev);
+
+	err = register_netdev(netdev);
+	if (err) {
+		dev_err(&pdev->dev, "failed to register net device\n");
+		return err;
+	}
+
+	return 0;
+}
+
+#define NETXEN_ULA_ADAPTER_KEY		(0xdaddad01)
+#define NETXEN_NON_ULA_ADAPTER_KEY	(0xdaddad00)
+
+static void netxen_read_ula_info(struct netxen_adapter *adapter)
+{
+	u32 temp;
+
+	/* Print ULA info only once for an adapter */
+	if (adapter->portnum != 0)
+		return;
+
+	temp = NXRD32(adapter, NETXEN_ULA_KEY);
+	switch (temp) {
+	case NETXEN_ULA_ADAPTER_KEY:
+		dev_info(&adapter->pdev->dev, "ULA adapter");
+		break;
+	case NETXEN_NON_ULA_ADAPTER_KEY:
+		dev_info(&adapter->pdev->dev, "non ULA adapter");
+		break;
+	default:
+		break;
+	}
+
+	return;
+}
+
+#ifdef CONFIG_PCIEAER
+static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	struct pci_dev *root = pdev->bus->self;
+	u32 aer_pos;
+
+	/* root bus? */
+	if (!root)
+		return;
+
+	if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
+		adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
+		return;
+
+	if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
+		return;
+
+	aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
+	if (!aer_pos)
+		return;
+
+	pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
+}
+#endif
+
+static int
+netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct net_device *netdev = NULL;
+	struct netxen_adapter *adapter = NULL;
+	int i = 0, err;
+	int pci_func_id = PCI_FUNC(pdev->devfn);
+	uint8_t revision_id;
+	u32 val;
+
+	if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
+		pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n",
+			module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
+		return -ENODEV;
+	}
+
+	if ((err = pci_enable_device(pdev)))
+		return err;
+
+	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
+		err = -ENODEV;
+		goto err_out_disable_pdev;
+	}
+
+	if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
+		goto err_out_disable_pdev;
+
+	if (NX_IS_REVISION_P3(pdev->revision))
+		pci_enable_pcie_error_reporting(pdev);
+
+	pci_set_master(pdev);
+
+	netdev = alloc_etherdev(sizeof(struct netxen_adapter));
+	if(!netdev) {
+		err = -ENOMEM;
+		goto err_out_free_res;
+	}
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+
+	adapter = netdev_priv(netdev);
+	adapter->netdev  = netdev;
+	adapter->pdev    = pdev;
+	adapter->ahw.pci_func  = pci_func_id;
+
+	revision_id = pdev->revision;
+	adapter->ahw.revision_id = revision_id;
+
+	rwlock_init(&adapter->ahw.crb_lock);
+	spin_lock_init(&adapter->ahw.mem_lock);
+
+	spin_lock_init(&adapter->tx_clean_lock);
+	INIT_LIST_HEAD(&adapter->mac_list);
+	INIT_LIST_HEAD(&adapter->ip_list);
+
+	err = netxen_setup_pci_map(adapter);
+	if (err)
+		goto err_out_free_netdev;
+
+	/* This will be reset for mezz cards  */
+	adapter->portnum = pci_func_id;
+
+	err = netxen_nic_get_board_info(adapter);
+	if (err) {
+		dev_err(&pdev->dev, "Error getting board config info.\n");
+		goto err_out_iounmap;
+	}
+
+#ifdef CONFIG_PCIEAER
+	netxen_mask_aer_correctable(adapter);
+#endif
+
+	/* Mezz cards have PCI function 0,2,3 enabled */
+	switch (adapter->ahw.board_type) {
+	case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
+	case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
+		if (pci_func_id >= 2)
+			adapter->portnum = pci_func_id - 2;
+		break;
+	default:
+		break;
+	}
+
+	err = netxen_check_flash_fw_compatibility(adapter);
+	if (err)
+		goto err_out_iounmap;
+
+	if (adapter->portnum == 0) {
+		val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
+		if (val != 0xffffffff && val != 0) {
+			NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
+			adapter->need_fw_reset = 1;
+		}
+	}
+
+	err = netxen_start_firmware(adapter);
+	if (err)
+		goto err_out_decr_ref;
+
+	/*
+	 * See if the firmware gave us a virtual-physical port mapping.
+	 */
+	adapter->physical_port = adapter->portnum;
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+		i = NXRD32(adapter, CRB_V2P(adapter->portnum));
+		if (i != 0x55555555)
+			adapter->physical_port = i;
+	}
+
+	/* MTU range: 0 - 8000 (P2) or 9600 (P3) */
+	netdev->min_mtu = 0;
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+		netdev->max_mtu = P3_MAX_MTU;
+	else
+		netdev->max_mtu = P2_MAX_MTU;
+
+	netxen_nic_clear_stats(adapter);
+
+	err = netxen_setup_intr(adapter);
+
+	if (err) {
+		dev_err(&adapter->pdev->dev,
+			"Failed to setup interrupts, error = %d\n", err);
+		goto err_out_disable_msi;
+	}
+
+	netxen_read_ula_info(adapter);
+
+	err = netxen_setup_netdev(adapter, netdev);
+	if (err)
+		goto err_out_disable_msi;
+
+	pci_set_drvdata(pdev, adapter);
+
+	netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
+
+	switch (adapter->ahw.port_type) {
+	case NETXEN_NIC_GBE:
+		dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
+				adapter->netdev->name);
+		break;
+	case NETXEN_NIC_XGBE:
+		dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
+				adapter->netdev->name);
+		break;
+	}
+
+	netxen_create_diag_entries(adapter);
+
+	return 0;
+
+err_out_disable_msi:
+	netxen_teardown_intr(adapter);
+
+	netxen_free_dummy_dma(adapter);
+
+err_out_decr_ref:
+	nx_decr_dev_ref_cnt(adapter);
+
+err_out_iounmap:
+	netxen_cleanup_pci_map(adapter);
+
+err_out_free_netdev:
+	free_netdev(netdev);
+
+err_out_free_res:
+	if (NX_IS_REVISION_P3(pdev->revision))
+		pci_disable_pcie_error_reporting(pdev);
+	pci_release_regions(pdev);
+
+err_out_disable_pdev:
+	pci_disable_device(pdev);
+	return err;
+}
+
+static
+void netxen_cleanup_minidump(struct netxen_adapter *adapter)
+{
+	kfree(adapter->mdump.md_template);
+	adapter->mdump.md_template = NULL;
+
+	if (adapter->mdump.md_capture_buff) {
+		vfree(adapter->mdump.md_capture_buff);
+		adapter->mdump.md_capture_buff = NULL;
+	}
+}
+
+static void netxen_nic_remove(struct pci_dev *pdev)
+{
+	struct netxen_adapter *adapter;
+	struct net_device *netdev;
+
+	adapter = pci_get_drvdata(pdev);
+	if (adapter == NULL)
+		return;
+
+	netdev = adapter->netdev;
+
+	netxen_cancel_fw_work(adapter);
+
+	unregister_netdev(netdev);
+
+	cancel_work_sync(&adapter->tx_timeout_task);
+
+	netxen_free_ip_list(adapter, false);
+	netxen_nic_detach(adapter);
+
+	nx_decr_dev_ref_cnt(adapter);
+
+	if (adapter->portnum == 0)
+		netxen_free_dummy_dma(adapter);
+
+	clear_bit(__NX_RESETTING, &adapter->state);
+
+	netxen_teardown_intr(adapter);
+	netxen_set_interrupt_mode(adapter, 0);
+	netxen_remove_diag_entries(adapter);
+
+	netxen_cleanup_pci_map(adapter);
+
+	netxen_release_firmware(adapter);
+
+	if (NX_IS_REVISION_P3(pdev->revision)) {
+		netxen_cleanup_minidump(adapter);
+		pci_disable_pcie_error_reporting(pdev);
+	}
+
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+
+	free_netdev(netdev);
+}
+
+static void netxen_nic_detach_func(struct netxen_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+
+	netif_device_detach(netdev);
+
+	netxen_cancel_fw_work(adapter);
+
+	if (netif_running(netdev))
+		netxen_nic_down(adapter, netdev);
+
+	cancel_work_sync(&adapter->tx_timeout_task);
+
+	netxen_nic_detach(adapter);
+
+	if (adapter->portnum == 0)
+		netxen_free_dummy_dma(adapter);
+
+	nx_decr_dev_ref_cnt(adapter);
+
+	clear_bit(__NX_RESETTING, &adapter->state);
+}
+
+static int netxen_nic_attach_late_func(struct pci_dev *pdev)
+{
+	struct netxen_adapter *adapter = pci_get_drvdata(pdev);
+	struct net_device *netdev = adapter->netdev;
+	int err;
+
+	pci_set_master(pdev);
+
+	adapter->ahw.crb_win = -1;
+	adapter->ahw.ocm_win = -1;
+
+	err = netxen_start_firmware(adapter);
+	if (err) {
+		dev_err(&pdev->dev, "failed to start firmware\n");
+		return err;
+	}
+
+	if (netif_running(netdev)) {
+		err = netxen_nic_attach(adapter);
+		if (err)
+			goto err_out;
+
+		err = netxen_nic_up(adapter, netdev);
+		if (err)
+			goto err_out_detach;
+
+		netxen_restore_indev_addr(netdev, NETDEV_UP);
+	}
+
+	netif_device_attach(netdev);
+	netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
+	return 0;
+
+err_out_detach:
+	netxen_nic_detach(adapter);
+err_out:
+	nx_decr_dev_ref_cnt(adapter);
+	return err;
+}
+
+static int netxen_nic_attach_func(struct pci_dev *pdev)
+{
+	int err;
+
+	err = pci_enable_device(pdev);
+	if (err)
+		return err;
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+
+	return netxen_nic_attach_late_func(pdev);
+}
+
+static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
+						pci_channel_state_t state)
+{
+	struct netxen_adapter *adapter = pci_get_drvdata(pdev);
+
+	if (state == pci_channel_io_perm_failure)
+		return PCI_ERS_RESULT_DISCONNECT;
+
+	if (nx_dev_request_aer(adapter))
+		return PCI_ERS_RESULT_RECOVERED;
+
+	netxen_nic_detach_func(adapter);
+
+	pci_disable_device(pdev);
+
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
+{
+	int err = 0;
+
+	err = netxen_nic_attach_func(pdev);
+
+	return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
+}
+
+static void netxen_nic_shutdown(struct pci_dev *pdev)
+{
+	struct netxen_adapter *adapter = pci_get_drvdata(pdev);
+
+	netxen_nic_detach_func(adapter);
+
+	if (pci_save_state(pdev))
+		return;
+
+	if (netxen_nic_wol_supported(adapter)) {
+		pci_enable_wake(pdev, PCI_D3cold, 1);
+		pci_enable_wake(pdev, PCI_D3hot, 1);
+	}
+
+	pci_disable_device(pdev);
+}
+
+static int __maybe_unused
+netxen_nic_suspend(struct device *dev_d)
+{
+	struct netxen_adapter *adapter = dev_get_drvdata(dev_d);
+
+	netxen_nic_detach_func(adapter);
+
+	if (netxen_nic_wol_supported(adapter))
+		device_wakeup_enable(dev_d);
+
+	return 0;
+}
+
+static int __maybe_unused
+netxen_nic_resume(struct device *dev_d)
+{
+	return netxen_nic_attach_late_func(to_pci_dev(dev_d));
+}
+
+static int netxen_nic_open(struct net_device *netdev)
+{
+	struct netxen_adapter *adapter = netdev_priv(netdev);
+	int err = 0;
+
+	if (adapter->driver_mismatch)
+		return -EIO;
+
+	err = netxen_nic_attach(adapter);
+	if (err)
+		return err;
+
+	err = __netxen_nic_up(adapter, netdev);
+	if (err)
+		goto err_out;
+
+	netif_start_queue(netdev);
+
+	return 0;
+
+err_out:
+	netxen_nic_detach(adapter);
+	return err;
+}
+
+/*
+ * netxen_nic_close - Disables a network interface entry point
+ */
+static int netxen_nic_close(struct net_device *netdev)
+{
+	struct netxen_adapter *adapter = netdev_priv(netdev);
+
+	__netxen_nic_down(adapter, netdev);
+	return 0;
+}
+
+static void
+netxen_tso_check(struct net_device *netdev,
+		struct nx_host_tx_ring *tx_ring,
+		struct cmd_desc_type0 *first_desc,
+		struct sk_buff *skb)
+{
+	u8 opcode = TX_ETHER_PKT;
+	__be16 protocol = skb->protocol;
+	u16 flags = 0, vid = 0;
+	u32 producer;
+	int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
+	struct cmd_desc_type0 *hwdesc;
+	struct vlan_ethhdr *vh;
+
+	if (protocol == cpu_to_be16(ETH_P_8021Q)) {
+
+		vh = skb_vlan_eth_hdr(skb);
+		protocol = vh->h_vlan_encapsulated_proto;
+		flags = FLAGS_VLAN_TAGGED;
+
+	} else if (skb_vlan_tag_present(skb)) {
+		flags = FLAGS_VLAN_OOB;
+		vid = skb_vlan_tag_get(skb);
+		netxen_set_tx_vlan_tci(first_desc, vid);
+		vlan_oob = 1;
+	}
+
+	if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
+			skb_shinfo(skb)->gso_size > 0) {
+
+		hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+
+		first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
+		first_desc->total_hdr_length = hdr_len;
+		if (vlan_oob) {
+			first_desc->total_hdr_length += VLAN_HLEN;
+			first_desc->tcp_hdr_offset = VLAN_HLEN;
+			first_desc->ip_hdr_offset = VLAN_HLEN;
+			/* Only in case of TSO on vlan device */
+			flags |= FLAGS_VLAN_TAGGED;
+		}
+
+		opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
+				TX_TCP_LSO6 : TX_TCP_LSO;
+		tso = 1;
+
+	} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+		u8 l4proto;
+
+		if (protocol == cpu_to_be16(ETH_P_IP)) {
+			l4proto = ip_hdr(skb)->protocol;
+
+			if (l4proto == IPPROTO_TCP)
+				opcode = TX_TCP_PKT;
+			else if(l4proto == IPPROTO_UDP)
+				opcode = TX_UDP_PKT;
+		} else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
+			l4proto = ipv6_hdr(skb)->nexthdr;
+
+			if (l4proto == IPPROTO_TCP)
+				opcode = TX_TCPV6_PKT;
+			else if(l4proto == IPPROTO_UDP)
+				opcode = TX_UDPV6_PKT;
+		}
+	}
+
+	first_desc->tcp_hdr_offset += skb_transport_offset(skb);
+	first_desc->ip_hdr_offset += skb_network_offset(skb);
+	netxen_set_tx_flags_opcode(first_desc, flags, opcode);
+
+	if (!tso)
+		return;
+
+	/* For LSO, we need to copy the MAC/IP/TCP headers into
+	 * the descriptor ring
+	 */
+	producer = tx_ring->producer;
+	copied = 0;
+	offset = 2;
+
+	if (vlan_oob) {
+		/* Create a TSO vlan header template for firmware */
+
+		hwdesc = &tx_ring->desc_head[producer];
+		tx_ring->cmd_buf_arr[producer].skb = NULL;
+
+		copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
+				hdr_len + VLAN_HLEN);
+
+		vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
+		skb_copy_from_linear_data(skb, vh, 12);
+		vh->h_vlan_proto = htons(ETH_P_8021Q);
+		vh->h_vlan_TCI = htons(vid);
+		skb_copy_from_linear_data_offset(skb, 12,
+				(char *)vh + 16, copy_len - 16);
+
+		copied = copy_len - VLAN_HLEN;
+		offset = 0;
+
+		producer = get_next_index(producer, tx_ring->num_desc);
+	}
+
+	while (copied < hdr_len) {
+
+		copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
+				(hdr_len - copied));
+
+		hwdesc = &tx_ring->desc_head[producer];
+		tx_ring->cmd_buf_arr[producer].skb = NULL;
+
+		skb_copy_from_linear_data_offset(skb, copied,
+				 (char *)hwdesc + offset, copy_len);
+
+		copied += copy_len;
+		offset = 0;
+
+		producer = get_next_index(producer, tx_ring->num_desc);
+	}
+
+	tx_ring->producer = producer;
+	barrier();
+}
+
+static int
+netxen_map_tx_skb(struct pci_dev *pdev,
+		struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
+{
+	struct netxen_skb_frag *nf;
+	skb_frag_t *frag;
+	int i, nr_frags;
+	dma_addr_t map;
+
+	nr_frags = skb_shinfo(skb)->nr_frags;
+	nf = &pbuf->frag_array[0];
+
+	map = pci_map_single(pdev, skb->data,
+			skb_headlen(skb), PCI_DMA_TODEVICE);
+	if (pci_dma_mapping_error(pdev, map))
+		goto out_err;
+
+	nf->dma = map;
+	nf->length = skb_headlen(skb);
+
+	for (i = 0; i < nr_frags; i++) {
+		frag = &skb_shinfo(skb)->frags[i];
+		nf = &pbuf->frag_array[i+1];
+
+		map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
+				       DMA_TO_DEVICE);
+		if (dma_mapping_error(&pdev->dev, map))
+			goto unwind;
+
+		nf->dma = map;
+		nf->length = skb_frag_size(frag);
+	}
+
+	return 0;
+
+unwind:
+	while (--i >= 0) {
+		nf = &pbuf->frag_array[i+1];
+		pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
+		nf->dma = 0ULL;
+	}
+
+	nf = &pbuf->frag_array[0];
+	pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
+	nf->dma = 0ULL;
+
+out_err:
+	return -ENOMEM;
+}
+
+static inline void
+netxen_clear_cmddesc(u64 *desc)
+{
+	desc[0] = 0ULL;
+	desc[2] = 0ULL;
+}
+
+static netdev_tx_t
+netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+{
+	struct netxen_adapter *adapter = netdev_priv(netdev);
+	struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
+	struct netxen_cmd_buffer *pbuf;
+	struct netxen_skb_frag *buffrag;
+	struct cmd_desc_type0 *hwdesc, *first_desc;
+	struct pci_dev *pdev;
+	int i, k;
+	int delta = 0;
+	skb_frag_t *frag;
+
+	u32 producer;
+	int frag_count;
+	u32 num_txd = tx_ring->num_desc;
+
+	frag_count = skb_shinfo(skb)->nr_frags + 1;
+
+	/* 14 frags supported for normal packet and
+	 * 32 frags supported for TSO packet
+	 */
+	if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
+
+		for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
+			frag = &skb_shinfo(skb)->frags[i];
+			delta += skb_frag_size(frag);
+		}
+
+		if (!__pskb_pull_tail(skb, delta))
+			goto drop_packet;
+
+		frag_count = 1 + skb_shinfo(skb)->nr_frags;
+	}
+
+	if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
+		netif_stop_queue(netdev);
+		smp_mb();
+		if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
+			netif_start_queue(netdev);
+		else
+			return NETDEV_TX_BUSY;
+	}
+
+	producer = tx_ring->producer;
+	pbuf = &tx_ring->cmd_buf_arr[producer];
+
+	pdev = adapter->pdev;
+
+	if (netxen_map_tx_skb(pdev, skb, pbuf))
+		goto drop_packet;
+
+	pbuf->skb = skb;
+	pbuf->frag_count = frag_count;
+
+	first_desc = hwdesc = &tx_ring->desc_head[producer];
+	netxen_clear_cmddesc((u64 *)hwdesc);
+
+	netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
+	netxen_set_tx_port(first_desc, adapter->portnum);
+
+	for (i = 0; i < frag_count; i++) {
+
+		k = i % 4;
+
+		if ((k == 0) && (i > 0)) {
+			/* move to next desc.*/
+			producer = get_next_index(producer, num_txd);
+			hwdesc = &tx_ring->desc_head[producer];
+			netxen_clear_cmddesc((u64 *)hwdesc);
+			tx_ring->cmd_buf_arr[producer].skb = NULL;
+		}
+
+		buffrag = &pbuf->frag_array[i];
+
+		hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
+		switch (k) {
+		case 0:
+			hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
+			break;
+		case 1:
+			hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
+			break;
+		case 2:
+			hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
+			break;
+		case 3:
+			hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
+			break;
+		}
+	}
+
+	tx_ring->producer = get_next_index(producer, num_txd);
+
+	netxen_tso_check(netdev, tx_ring, first_desc, skb);
+
+	adapter->stats.txbytes += skb->len;
+	adapter->stats.xmitcalled++;
+
+	netxen_nic_update_cmd_producer(adapter, tx_ring);
+
+	return NETDEV_TX_OK;
+
+drop_packet:
+	adapter->stats.txdropped++;
+	dev_kfree_skb_any(skb);
+	return NETDEV_TX_OK;
+}
+
+static int netxen_nic_check_temp(struct netxen_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	uint32_t temp, temp_state, temp_val;
+	int rv = 0;
+
+	temp = NXRD32(adapter, CRB_TEMP_STATE);
+
+	temp_state = nx_get_temp_state(temp);
+	temp_val = nx_get_temp_val(temp);
+
+	if (temp_state == NX_TEMP_PANIC) {
+		printk(KERN_ALERT
+		       "%s: Device temperature %d degrees C exceeds"
+		       " maximum allowed. Hardware has been shut down.\n",
+		       netdev->name, temp_val);
+		rv = 1;
+	} else if (temp_state == NX_TEMP_WARN) {
+		if (adapter->temp == NX_TEMP_NORMAL) {
+			printk(KERN_ALERT
+			       "%s: Device temperature %d degrees C "
+			       "exceeds operating range."
+			       " Immediate action needed.\n",
+			       netdev->name, temp_val);
+		}
+	} else {
+		if (adapter->temp == NX_TEMP_WARN) {
+			printk(KERN_INFO
+			       "%s: Device temperature is now %d degrees C"
+			       " in normal range.\n", netdev->name,
+			       temp_val);
+		}
+	}
+	adapter->temp = temp_state;
+	return rv;
+}
+
+void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
+{
+	struct net_device *netdev = adapter->netdev;
+
+	if (adapter->ahw.linkup && !linkup) {
+		printk(KERN_INFO "%s: %s NIC Link is down\n",
+		       netxen_nic_driver_name, netdev->name);
+		adapter->ahw.linkup = 0;
+		if (netif_running(netdev)) {
+			netif_carrier_off(netdev);
+			netif_stop_queue(netdev);
+		}
+		adapter->link_changed = !adapter->has_link_events;
+	} else if (!adapter->ahw.linkup && linkup) {
+		printk(KERN_INFO "%s: %s NIC Link is up\n",
+		       netxen_nic_driver_name, netdev->name);
+		adapter->ahw.linkup = 1;
+		if (netif_running(netdev)) {
+			netif_carrier_on(netdev);
+			netif_wake_queue(netdev);
+		}
+		adapter->link_changed = !adapter->has_link_events;
+	}
+}
+
+static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
+{
+	u32 val, port, linkup;
+
+	port = adapter->physical_port;
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+		val = NXRD32(adapter, CRB_XG_STATE_P3);
+		val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
+		linkup = (val == XG_LINK_UP_P3);
+	} else {
+		val = NXRD32(adapter, CRB_XG_STATE);
+		val = (val >> port*8) & 0xff;
+		linkup = (val == XG_LINK_UP);
+	}
+
+	netxen_advert_link_change(adapter, linkup);
+}
+
+static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue)
+{
+	struct netxen_adapter *adapter = netdev_priv(netdev);
+
+	if (test_bit(__NX_RESETTING, &adapter->state))
+		return;
+
+	dev_err(&netdev->dev, "transmit timeout, resetting.\n");
+	schedule_work(&adapter->tx_timeout_task);
+}
+
+static void netxen_tx_timeout_task(struct work_struct *work)
+{
+	struct netxen_adapter *adapter =
+		container_of(work, struct netxen_adapter, tx_timeout_task);
+
+	if (!netif_running(adapter->netdev))
+		return;
+
+	if (test_and_set_bit(__NX_RESETTING, &adapter->state))
+		return;
+
+	if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
+		goto request_reset;
+
+	rtnl_lock();
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+		/* try to scrub interrupt */
+		netxen_napi_disable(adapter);
+
+		netxen_napi_enable(adapter);
+
+		netif_wake_queue(adapter->netdev);
+
+		clear_bit(__NX_RESETTING, &adapter->state);
+	} else {
+		clear_bit(__NX_RESETTING, &adapter->state);
+		if (netxen_nic_reset_context(adapter)) {
+			rtnl_unlock();
+			goto request_reset;
+		}
+	}
+	netif_trans_update(adapter->netdev);
+	rtnl_unlock();
+	return;
+
+request_reset:
+	adapter->need_fw_reset = 1;
+	clear_bit(__NX_RESETTING, &adapter->state);
+}
+
+static void netxen_nic_get_stats(struct net_device *netdev,
+				 struct rtnl_link_stats64 *stats)
+{
+	struct netxen_adapter *adapter = netdev_priv(netdev);
+
+	stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
+	stats->tx_packets = adapter->stats.xmitfinished;
+	stats->rx_bytes = adapter->stats.rxbytes;
+	stats->tx_bytes = adapter->stats.txbytes;
+	stats->rx_dropped = adapter->stats.rxdropped;
+	stats->tx_dropped = adapter->stats.txdropped;
+}
+
+static irqreturn_t netxen_intr(int irq, void *data)
+{
+	struct nx_host_sds_ring *sds_ring = data;
+	struct netxen_adapter *adapter = sds_ring->adapter;
+	u32 status = 0;
+
+	status = readl(adapter->isr_int_vec);
+
+	if (!(status & adapter->int_vec_bit))
+		return IRQ_NONE;
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
+		/* check interrupt state machine, to be sure */
+		status = readl(adapter->crb_int_state_reg);
+		if (!ISR_LEGACY_INT_TRIGGERED(status))
+			return IRQ_NONE;
+
+	} else {
+		unsigned long our_int = 0;
+
+		our_int = readl(adapter->crb_int_state_reg);
+
+		/* not our interrupt */
+		if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
+			return IRQ_NONE;
+
+		/* claim interrupt */
+		writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
+
+		/* clear interrupt */
+		netxen_nic_disable_int(sds_ring);
+	}
+
+	writel(0xffffffff, adapter->tgt_status_reg);
+	/* read twice to ensure write is flushed */
+	readl(adapter->isr_int_vec);
+	readl(adapter->isr_int_vec);
+
+	napi_schedule(&sds_ring->napi);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t netxen_msi_intr(int irq, void *data)
+{
+	struct nx_host_sds_ring *sds_ring = data;
+	struct netxen_adapter *adapter = sds_ring->adapter;
+
+	/* clear interrupt */
+	writel(0xffffffff, adapter->tgt_status_reg);
+
+	napi_schedule(&sds_ring->napi);
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t netxen_msix_intr(int irq, void *data)
+{
+	struct nx_host_sds_ring *sds_ring = data;
+
+	napi_schedule(&sds_ring->napi);
+	return IRQ_HANDLED;
+}
+
+static int netxen_nic_poll(struct napi_struct *napi, int budget)
+{
+	struct nx_host_sds_ring *sds_ring =
+		container_of(napi, struct nx_host_sds_ring, napi);
+
+	struct netxen_adapter *adapter = sds_ring->adapter;
+
+	int tx_complete;
+	int work_done;
+
+	tx_complete = netxen_process_cmd_ring(adapter);
+
+	work_done = netxen_process_rcv_ring(sds_ring, budget);
+
+	if (!tx_complete)
+		work_done = budget;
+
+	if (work_done < budget) {
+		napi_complete_done(&sds_ring->napi, work_done);
+		if (test_bit(__NX_DEV_UP, &adapter->state))
+			netxen_nic_enable_int(sds_ring);
+	}
+
+	return work_done;
+}
+
+static int
+nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
+{
+	int count;
+	if (netxen_api_lock(adapter))
+		return -EIO;
+
+	count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
+
+	NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
+
+	netxen_api_unlock(adapter);
+	return count;
+}
+
+static int
+nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
+{
+	int count, state;
+	if (netxen_api_lock(adapter))
+		return -EIO;
+
+	count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
+	WARN_ON(count == 0);
+
+	NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
+	state = NXRD32(adapter, NX_CRB_DEV_STATE);
+
+	if (count == 0 && state != NX_DEV_FAILED)
+		NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
+
+	netxen_api_unlock(adapter);
+	return count;
+}
+
+static int
+nx_dev_request_aer(struct netxen_adapter *adapter)
+{
+	u32 state;
+	int ret = -EINVAL;
+
+	if (netxen_api_lock(adapter))
+		return ret;
+
+	state = NXRD32(adapter, NX_CRB_DEV_STATE);
+
+	if (state == NX_DEV_NEED_AER)
+		ret = 0;
+	else if (state == NX_DEV_READY) {
+		NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
+		ret = 0;
+	}
+
+	netxen_api_unlock(adapter);
+	return ret;
+}
+
+int
+nx_dev_request_reset(struct netxen_adapter *adapter)
+{
+	u32 state;
+	int ret = -EINVAL;
+
+	if (netxen_api_lock(adapter))
+		return ret;
+
+	state = NXRD32(adapter, NX_CRB_DEV_STATE);
+
+	if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
+		ret = 0;
+	else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
+		NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
+		adapter->flags |= NETXEN_FW_RESET_OWNER;
+		ret = 0;
+	}
+
+	netxen_api_unlock(adapter);
+
+	return ret;
+}
+
+static int
+netxen_can_start_firmware(struct netxen_adapter *adapter)
+{
+	int count;
+	int can_start = 0;
+
+	if (netxen_api_lock(adapter)) {
+		nx_incr_dev_ref_cnt(adapter);
+		return -1;
+	}
+
+	count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
+
+	if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
+		count = 0;
+
+	if (count == 0) {
+		can_start = 1;
+		NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
+	}
+
+	NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
+
+	netxen_api_unlock(adapter);
+
+	return can_start;
+}
+
+static void
+netxen_schedule_work(struct netxen_adapter *adapter,
+		work_func_t func, int delay)
+{
+	INIT_DELAYED_WORK(&adapter->fw_work, func);
+	schedule_delayed_work(&adapter->fw_work, delay);
+}
+
+static void
+netxen_cancel_fw_work(struct netxen_adapter *adapter)
+{
+	while (test_and_set_bit(__NX_RESETTING, &adapter->state))
+		msleep(10);
+
+	cancel_delayed_work_sync(&adapter->fw_work);
+}
+
+static void
+netxen_attach_work(struct work_struct *work)
+{
+	struct netxen_adapter *adapter = container_of(work,
+				struct netxen_adapter, fw_work.work);
+	struct net_device *netdev = adapter->netdev;
+	int err = 0;
+
+	if (netif_running(netdev)) {
+		err = netxen_nic_attach(adapter);
+		if (err)
+			goto done;
+
+		err = netxen_nic_up(adapter, netdev);
+		if (err) {
+			netxen_nic_detach(adapter);
+			goto done;
+		}
+
+		netxen_restore_indev_addr(netdev, NETDEV_UP);
+	}
+
+	netif_device_attach(netdev);
+
+done:
+	adapter->fw_fail_cnt = 0;
+	clear_bit(__NX_RESETTING, &adapter->state);
+	netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
+}
+
+static void
+netxen_fwinit_work(struct work_struct *work)
+{
+	struct netxen_adapter *adapter = container_of(work,
+				struct netxen_adapter, fw_work.work);
+	int dev_state;
+	int count;
+	dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
+	if (adapter->flags & NETXEN_FW_RESET_OWNER) {
+		count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
+		WARN_ON(count == 0);
+		if (count == 1) {
+			if (adapter->mdump.md_enabled) {
+				rtnl_lock();
+				netxen_dump_fw(adapter);
+				rtnl_unlock();
+			}
+			adapter->flags &= ~NETXEN_FW_RESET_OWNER;
+			if (netxen_api_lock(adapter)) {
+				clear_bit(__NX_RESETTING, &adapter->state);
+				NXWR32(adapter, NX_CRB_DEV_STATE,
+						NX_DEV_FAILED);
+				return;
+			}
+			count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
+			NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
+			NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
+			dev_state = NX_DEV_COLD;
+			netxen_api_unlock(adapter);
+		}
+	}
+
+	switch (dev_state) {
+	case NX_DEV_COLD:
+	case NX_DEV_READY:
+		if (!netxen_start_firmware(adapter)) {
+			netxen_schedule_work(adapter, netxen_attach_work, 0);
+			return;
+		}
+		break;
+
+	case NX_DEV_NEED_RESET:
+	case NX_DEV_INITALIZING:
+			netxen_schedule_work(adapter,
+					netxen_fwinit_work, 2 * FW_POLL_DELAY);
+			return;
+
+	case NX_DEV_FAILED:
+	default:
+		nx_incr_dev_ref_cnt(adapter);
+		break;
+	}
+
+	if (netxen_api_lock(adapter)) {
+		clear_bit(__NX_RESETTING, &adapter->state);
+		return;
+	}
+	NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
+	netxen_api_unlock(adapter);
+	dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
+				adapter->netdev->name);
+
+	clear_bit(__NX_RESETTING, &adapter->state);
+}
+
+static void
+netxen_detach_work(struct work_struct *work)
+{
+	struct netxen_adapter *adapter = container_of(work,
+				struct netxen_adapter, fw_work.work);
+	struct net_device *netdev = adapter->netdev;
+	int ref_cnt = 0, delay;
+	u32 status;
+
+	netif_device_detach(netdev);
+
+	netxen_nic_down(adapter, netdev);
+
+	rtnl_lock();
+	netxen_nic_detach(adapter);
+	rtnl_unlock();
+
+	status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
+
+	if (status & NX_RCODE_FATAL_ERROR)
+		goto err_ret;
+
+	if (adapter->temp == NX_TEMP_PANIC)
+		goto err_ret;
+
+	if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
+		ref_cnt = nx_decr_dev_ref_cnt(adapter);
+
+	if (ref_cnt == -EIO)
+		goto err_ret;
+
+	delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
+
+	adapter->fw_wait_cnt = 0;
+	netxen_schedule_work(adapter, netxen_fwinit_work, delay);
+
+	return;
+
+err_ret:
+	clear_bit(__NX_RESETTING, &adapter->state);
+}
+
+static int
+netxen_check_health(struct netxen_adapter *adapter)
+{
+	u32 state, heartbit;
+	u32 peg_status;
+	struct net_device *netdev = adapter->netdev;
+
+	state = NXRD32(adapter, NX_CRB_DEV_STATE);
+	if (state == NX_DEV_NEED_AER)
+		return 0;
+
+	if (netxen_nic_check_temp(adapter))
+		goto detach;
+
+	if (adapter->need_fw_reset) {
+		if (nx_dev_request_reset(adapter))
+			return 0;
+		goto detach;
+	}
+
+	/* NX_DEV_NEED_RESET, this state can be marked in two cases
+	 * 1. Tx timeout 2. Fw hang
+	 * Send request to destroy context in case of tx timeout only
+	 * and doesn't required in case of Fw hang
+	 */
+	if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
+		adapter->need_fw_reset = 1;
+		if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+			goto detach;
+	}
+
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+		return 0;
+
+	heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
+	if (heartbit != adapter->heartbit) {
+		adapter->heartbit = heartbit;
+		adapter->fw_fail_cnt = 0;
+		if (adapter->need_fw_reset)
+			goto detach;
+		return 0;
+	}
+
+	if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
+		return 0;
+
+	if (nx_dev_request_reset(adapter))
+		return 0;
+
+	clear_bit(__NX_FW_ATTACHED, &adapter->state);
+
+	dev_err(&netdev->dev, "firmware hang detected\n");
+	peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
+	dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
+			"PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
+			"PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
+			"PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
+			"PEG_NET_4_PC: 0x%x\n",
+			peg_status,
+			NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
+			NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
+			NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
+			NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
+			NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
+			NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
+	if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
+		dev_err(&adapter->pdev->dev,
+			"Firmware aborted with error code 0x00006700. "
+				"Device is being reset.\n");
+detach:
+	if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
+			!test_and_set_bit(__NX_RESETTING, &adapter->state))
+		netxen_schedule_work(adapter, netxen_detach_work, 0);
+	return 1;
+}
+
+static void
+netxen_fw_poll_work(struct work_struct *work)
+{
+	struct netxen_adapter *adapter = container_of(work,
+				struct netxen_adapter, fw_work.work);
+
+	if (test_bit(__NX_RESETTING, &adapter->state))
+		goto reschedule;
+
+	if (test_bit(__NX_DEV_UP, &adapter->state) &&
+	    !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
+		if (!adapter->has_link_events) {
+
+			netxen_nic_handle_phy_intr(adapter);
+
+			if (adapter->link_changed)
+				netxen_nic_set_link_parameters(adapter);
+		}
+	}
+
+	if (netxen_check_health(adapter))
+		return;
+
+reschedule:
+	netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
+}
+
+static ssize_t
+netxen_store_bridged_mode(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t len)
+{
+	struct net_device *net = to_net_dev(dev);
+	struct netxen_adapter *adapter = netdev_priv(net);
+	unsigned long new;
+	int ret = -EINVAL;
+
+	if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
+		goto err_out;
+
+	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
+		goto err_out;
+
+	if (kstrtoul(buf, 2, &new))
+		goto err_out;
+
+	if (!netxen_config_bridged_mode(adapter, !!new))
+		ret = len;
+
+err_out:
+	return ret;
+}
+
+static ssize_t
+netxen_show_bridged_mode(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct net_device *net = to_net_dev(dev);
+	struct netxen_adapter *adapter;
+	int bridged_mode = 0;
+
+	adapter = netdev_priv(net);
+
+	if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
+		bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
+
+	return sprintf(buf, "%d\n", bridged_mode);
+}
+
+static const struct device_attribute dev_attr_bridged_mode = {
+	.attr = { .name = "bridged_mode", .mode = 0644 },
+	.show = netxen_show_bridged_mode,
+	.store = netxen_store_bridged_mode,
+};
+
+static ssize_t
+netxen_store_diag_mode(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t len)
+{
+	struct netxen_adapter *adapter = dev_get_drvdata(dev);
+	unsigned long new;
+
+	if (kstrtoul(buf, 2, &new))
+		return -EINVAL;
+
+	if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
+		adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
+
+	return len;
+}
+
+static ssize_t
+netxen_show_diag_mode(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct netxen_adapter *adapter = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%d\n",
+			!!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
+}
+
+static const struct device_attribute dev_attr_diag_mode = {
+	.attr = { .name = "diag_mode", .mode = 0644 },
+	.show = netxen_show_diag_mode,
+	.store = netxen_store_diag_mode,
+};
+
+static int
+netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
+		loff_t offset, size_t size)
+{
+	size_t crb_size = 4;
+
+	if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
+		return -EIO;
+
+	if (offset < NETXEN_PCI_CRBSPACE) {
+		if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+			return -EINVAL;
+
+		if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
+						NETXEN_PCI_CAMQM_2M_END))
+			crb_size = 8;
+		else
+			return -EINVAL;
+	}
+
+	if ((size != crb_size) || (offset & (crb_size-1)))
+		return  -EINVAL;
+
+	return 0;
+}
+
+static ssize_t
+netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
+		struct bin_attribute *attr,
+		char *buf, loff_t offset, size_t size)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct netxen_adapter *adapter = dev_get_drvdata(dev);
+	u32 data;
+	u64 qmdata;
+	int ret;
+
+	ret = netxen_sysfs_validate_crb(adapter, offset, size);
+	if (ret != 0)
+		return ret;
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
+		ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
+					NETXEN_PCI_CAMQM_2M_END)) {
+		netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
+		memcpy(buf, &qmdata, size);
+	} else {
+		data = NXRD32(adapter, offset);
+		memcpy(buf, &data, size);
+	}
+
+	return size;
+}
+
+static ssize_t
+netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
+		struct bin_attribute *attr,
+		char *buf, loff_t offset, size_t size)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct netxen_adapter *adapter = dev_get_drvdata(dev);
+	u32 data;
+	u64 qmdata;
+	int ret;
+
+	ret = netxen_sysfs_validate_crb(adapter, offset, size);
+	if (ret != 0)
+		return ret;
+
+	if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
+		ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
+					NETXEN_PCI_CAMQM_2M_END)) {
+		memcpy(&qmdata, buf, size);
+		netxen_pci_camqm_write_2M(adapter, offset, qmdata);
+	} else {
+		memcpy(&data, buf, size);
+		NXWR32(adapter, offset, data);
+	}
+
+	return size;
+}
+
+static int
+netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
+		loff_t offset, size_t size)
+{
+	if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
+		return -EIO;
+
+	if ((size != 8) || (offset & 0x7))
+		return  -EIO;
+
+	return 0;
+}
+
+static ssize_t
+netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
+		struct bin_attribute *attr,
+		char *buf, loff_t offset, size_t size)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct netxen_adapter *adapter = dev_get_drvdata(dev);
+	u64 data;
+	int ret;
+
+	ret = netxen_sysfs_validate_mem(adapter, offset, size);
+	if (ret != 0)
+		return ret;
+
+	if (adapter->pci_mem_read(adapter, offset, &data))
+		return -EIO;
+
+	memcpy(buf, &data, size);
+
+	return size;
+}
+
+static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
+		struct bin_attribute *attr, char *buf,
+		loff_t offset, size_t size)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct netxen_adapter *adapter = dev_get_drvdata(dev);
+	u64 data;
+	int ret;
+
+	ret = netxen_sysfs_validate_mem(adapter, offset, size);
+	if (ret != 0)
+		return ret;
+
+	memcpy(&data, buf, size);
+
+	if (adapter->pci_mem_write(adapter, offset, data))
+		return -EIO;
+
+	return size;
+}
+
+
+static const struct bin_attribute bin_attr_crb = {
+	.attr = { .name = "crb", .mode = 0644 },
+	.size = 0,
+	.read = netxen_sysfs_read_crb,
+	.write = netxen_sysfs_write_crb,
+};
+
+static const struct bin_attribute bin_attr_mem = {
+	.attr = { .name = "mem", .mode = 0644 },
+	.size = 0,
+	.read = netxen_sysfs_read_mem,
+	.write = netxen_sysfs_write_mem,
+};
+
+static ssize_t
+netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
+		struct bin_attribute *attr,
+		char *buf, loff_t offset, size_t size)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct netxen_adapter *adapter = dev_get_drvdata(dev);
+	struct net_device *netdev = adapter->netdev;
+	struct netxen_dimm_cfg dimm;
+	u8 dw, rows, cols, banks, ranks;
+	u32 val;
+
+	if (size < attr->size) {
+		netdev_err(netdev, "Invalid size\n");
+		return -EINVAL;
+	}
+
+	memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
+	val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
+
+	/* Checks if DIMM info is valid. */
+	if (val & NETXEN_DIMM_VALID_FLAG) {
+		netdev_err(netdev, "Invalid DIMM flag\n");
+		dimm.presence = 0xff;
+		goto out;
+	}
+
+	rows = NETXEN_DIMM_NUMROWS(val);
+	cols = NETXEN_DIMM_NUMCOLS(val);
+	ranks = NETXEN_DIMM_NUMRANKS(val);
+	banks = NETXEN_DIMM_NUMBANKS(val);
+	dw = NETXEN_DIMM_DATAWIDTH(val);
+
+	dimm.presence = (val & NETXEN_DIMM_PRESENT);
+
+	/* Checks if DIMM info is present. */
+	if (!dimm.presence) {
+		netdev_err(netdev, "DIMM not present\n");
+		goto out;
+	}
+
+	dimm.dimm_type = NETXEN_DIMM_TYPE(val);
+
+	switch (dimm.dimm_type) {
+	case NETXEN_DIMM_TYPE_RDIMM:
+	case NETXEN_DIMM_TYPE_UDIMM:
+	case NETXEN_DIMM_TYPE_SO_DIMM:
+	case NETXEN_DIMM_TYPE_Micro_DIMM:
+	case NETXEN_DIMM_TYPE_Mini_RDIMM:
+	case NETXEN_DIMM_TYPE_Mini_UDIMM:
+		break;
+	default:
+		netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
+		goto out;
+	}
+
+	if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
+		dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
+	else
+		dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
+
+	if (val & NETXEN_DIMM_SIZE) {
+		dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
+		goto out;
+	}
+
+	if (!rows) {
+		netdev_err(netdev, "Invalid no of rows %x\n", rows);
+		goto out;
+	}
+
+	if (!cols) {
+		netdev_err(netdev, "Invalid no of columns %x\n", cols);
+		goto out;
+	}
+
+	if (!banks) {
+		netdev_err(netdev, "Invalid no of banks %x\n", banks);
+		goto out;
+	}
+
+	ranks += 1;
+
+	switch (dw) {
+	case 0x0:
+		dw = 32;
+		break;
+	case 0x1:
+		dw = 33;
+		break;
+	case 0x2:
+		dw = 36;
+		break;
+	case 0x3:
+		dw = 64;
+		break;
+	case 0x4:
+		dw = 72;
+		break;
+	case 0x5:
+		dw = 80;
+		break;
+	case 0x6:
+		dw = 128;
+		break;
+	case 0x7:
+		dw = 144;
+		break;
+	default:
+		netdev_err(netdev, "Invalid data-width %x\n", dw);
+		goto out;
+	}
+
+	dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
+	/* Size returned in MB. */
+	dimm.size = (dimm.size) / 0x100000;
+out:
+	memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
+	return sizeof(struct netxen_dimm_cfg);
+
+}
+
+static const struct bin_attribute bin_attr_dimm = {
+	.attr = { .name = "dimm", .mode = 0644 },
+	.size = sizeof(struct netxen_dimm_cfg),
+	.read = netxen_sysfs_read_dimm,
+};
+
+
+static void
+netxen_create_sysfs_entries(struct netxen_adapter *adapter)
+{
+	struct device *dev = &adapter->pdev->dev;
+
+	if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
+		/* bridged_mode control */
+		if (device_create_file(dev, &dev_attr_bridged_mode)) {
+			dev_warn(dev,
+				"failed to create bridged_mode sysfs entry\n");
+		}
+	}
+}
+
+static void
+netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
+{
+	struct device *dev = &adapter->pdev->dev;
+
+	if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
+		device_remove_file(dev, &dev_attr_bridged_mode);
+}
+
+static void
+netxen_create_diag_entries(struct netxen_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	struct device *dev;
+
+	dev = &pdev->dev;
+	if (device_create_file(dev, &dev_attr_diag_mode))
+		dev_info(dev, "failed to create diag_mode sysfs entry\n");
+	if (device_create_bin_file(dev, &bin_attr_crb))
+		dev_info(dev, "failed to create crb sysfs entry\n");
+	if (device_create_bin_file(dev, &bin_attr_mem))
+		dev_info(dev, "failed to create mem sysfs entry\n");
+	if (device_create_bin_file(dev, &bin_attr_dimm))
+		dev_info(dev, "failed to create dimm sysfs entry\n");
+}
+
+
+static void
+netxen_remove_diag_entries(struct netxen_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	struct device *dev = &pdev->dev;
+
+	device_remove_file(dev, &dev_attr_diag_mode);
+	device_remove_bin_file(dev, &bin_attr_crb);
+	device_remove_bin_file(dev, &bin_attr_mem);
+	device_remove_bin_file(dev, &bin_attr_dimm);
+}
+
+#ifdef CONFIG_INET
+
+#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
+
+static int
+netxen_destip_supported(struct netxen_adapter *adapter)
+{
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+		return 0;
+
+	if (adapter->ahw.cut_through)
+		return 0;
+
+	return 1;
+}
+
+static void
+netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
+{
+	struct nx_ip_list  *cur, *tmp_cur;
+
+	list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
+		if (master) {
+			if (cur->master) {
+				netxen_config_ipaddr(adapter, cur->ip_addr,
+						     NX_IP_DOWN);
+				list_del(&cur->list);
+				kfree(cur);
+			}
+		} else {
+			netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
+			list_del(&cur->list);
+			kfree(cur);
+		}
+	}
+}
+
+static bool
+netxen_list_config_ip(struct netxen_adapter *adapter,
+		struct in_ifaddr *ifa, unsigned long event)
+{
+	struct net_device *dev;
+	struct nx_ip_list *cur, *tmp_cur;
+	struct list_head *head;
+	bool ret = false;
+
+	dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
+
+	if (dev == NULL)
+		goto out;
+
+	switch (event) {
+	case NX_IP_UP:
+		list_for_each(head, &adapter->ip_list) {
+			cur = list_entry(head, struct nx_ip_list, list);
+
+			if (cur->ip_addr == ifa->ifa_address)
+				goto out;
+		}
+
+		cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
+		if (cur == NULL)
+			goto out;
+		if (is_vlan_dev(dev))
+			dev = vlan_dev_real_dev(dev);
+		cur->master = !!netif_is_bond_master(dev);
+		cur->ip_addr = ifa->ifa_address;
+		list_add_tail(&cur->list, &adapter->ip_list);
+		netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
+		ret = true;
+		break;
+	case NX_IP_DOWN:
+		list_for_each_entry_safe(cur, tmp_cur,
+					&adapter->ip_list, list) {
+			if (cur->ip_addr == ifa->ifa_address) {
+				list_del(&cur->list);
+				kfree(cur);
+				netxen_config_ipaddr(adapter, ifa->ifa_address,
+						     NX_IP_DOWN);
+				ret = true;
+				break;
+			}
+		}
+	}
+out:
+	return ret;
+}
+
+static void
+netxen_config_indev_addr(struct netxen_adapter *adapter,
+		struct net_device *dev, unsigned long event)
+{
+	struct in_device *indev;
+	struct in_ifaddr *ifa;
+
+	if (!netxen_destip_supported(adapter))
+		return;
+
+	indev = in_dev_get(dev);
+	if (!indev)
+		return;
+
+	rcu_read_lock();
+	in_dev_for_each_ifa_rcu(ifa, indev) {
+		switch (event) {
+		case NETDEV_UP:
+			netxen_list_config_ip(adapter, ifa, NX_IP_UP);
+			break;
+		case NETDEV_DOWN:
+			netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
+			break;
+		default:
+			break;
+		}
+	}
+	rcu_read_unlock();
+	in_dev_put(indev);
+}
+
+static void
+netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
+
+{
+	struct netxen_adapter *adapter = netdev_priv(netdev);
+	struct nx_ip_list *pos, *tmp_pos;
+	unsigned long ip_event;
+
+	ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
+	netxen_config_indev_addr(adapter, netdev, event);
+
+	list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
+		netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
+	}
+}
+
+static inline bool
+netxen_config_checkdev(struct net_device *dev)
+{
+	struct netxen_adapter *adapter;
+
+	if (!is_netxen_netdev(dev))
+		return false;
+	adapter = netdev_priv(dev);
+	if (!adapter)
+		return false;
+	if (!netxen_destip_supported(adapter))
+		return false;
+	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
+		return false;
+
+	return true;
+}
+
+/**
+ * netxen_config_master - configure addresses based on master
+ * @dev: netxen device
+ * @event: netdev event
+ */
+static void netxen_config_master(struct net_device *dev, unsigned long event)
+{
+	struct net_device *master, *slave;
+	struct netxen_adapter *adapter = netdev_priv(dev);
+
+	rcu_read_lock();
+	master = netdev_master_upper_dev_get_rcu(dev);
+	/*
+	 * This is the case where the netxen nic is being
+	 * enslaved and is dev_open()ed in bond_enslave()
+	 * Now we should program the bond's (and its vlans')
+	 * addresses in the netxen NIC.
+	 */
+	if (master && netif_is_bond_master(master) &&
+	    !netif_is_bond_slave(dev)) {
+		netxen_config_indev_addr(adapter, master, event);
+		for_each_netdev_rcu(&init_net, slave)
+			if (is_vlan_dev(slave) &&
+			    vlan_dev_real_dev(slave) == master)
+				netxen_config_indev_addr(adapter, slave, event);
+	}
+	rcu_read_unlock();
+	/*
+	 * This is the case where the netxen nic is being
+	 * released and is dev_close()ed in bond_release()
+	 * just before IFF_BONDING is stripped.
+	 */
+	if (!master && dev->priv_flags & IFF_BONDING)
+		netxen_free_ip_list(adapter, true);
+}
+
+static int netxen_netdev_event(struct notifier_block *this,
+				 unsigned long event, void *ptr)
+{
+	struct netxen_adapter *adapter;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+	struct net_device *orig_dev = dev;
+	struct net_device *slave;
+
+recheck:
+	if (dev == NULL)
+		goto done;
+
+	if (is_vlan_dev(dev)) {
+		dev = vlan_dev_real_dev(dev);
+		goto recheck;
+	}
+	if (event == NETDEV_UP || event == NETDEV_DOWN) {
+		/* If this is a bonding device, look for netxen-based slaves*/
+		if (netif_is_bond_master(dev)) {
+			rcu_read_lock();
+			for_each_netdev_in_bond_rcu(dev, slave) {
+				if (!netxen_config_checkdev(slave))
+					continue;
+				adapter = netdev_priv(slave);
+				netxen_config_indev_addr(adapter,
+							 orig_dev, event);
+			}
+			rcu_read_unlock();
+		} else {
+			if (!netxen_config_checkdev(dev))
+				goto done;
+			adapter = netdev_priv(dev);
+			/* Act only if the actual netxen is the target */
+			if (orig_dev == dev)
+				netxen_config_master(dev, event);
+			netxen_config_indev_addr(adapter, orig_dev, event);
+		}
+	}
+done:
+	return NOTIFY_DONE;
+}
+
+static int
+netxen_inetaddr_event(struct notifier_block *this,
+		unsigned long event, void *ptr)
+{
+	struct netxen_adapter *adapter;
+	struct net_device *dev, *slave;
+	struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
+	unsigned long ip_event;
+
+	dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
+	ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
+recheck:
+	if (dev == NULL)
+		goto done;
+
+	if (is_vlan_dev(dev)) {
+		dev = vlan_dev_real_dev(dev);
+		goto recheck;
+	}
+	if (event == NETDEV_UP || event == NETDEV_DOWN) {
+		/* If this is a bonding device, look for netxen-based slaves*/
+		if (netif_is_bond_master(dev)) {
+			rcu_read_lock();
+			for_each_netdev_in_bond_rcu(dev, slave) {
+				if (!netxen_config_checkdev(slave))
+					continue;
+				adapter = netdev_priv(slave);
+				netxen_list_config_ip(adapter, ifa, ip_event);
+			}
+			rcu_read_unlock();
+		} else {
+			if (!netxen_config_checkdev(dev))
+				goto done;
+			adapter = netdev_priv(dev);
+			netxen_list_config_ip(adapter, ifa, ip_event);
+		}
+	}
+done:
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block	netxen_netdev_cb = {
+	.notifier_call = netxen_netdev_event,
+};
+
+static struct notifier_block netxen_inetaddr_cb = {
+	.notifier_call = netxen_inetaddr_event,
+};
+#else
+static void
+netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
+{ }
+static void
+netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
+{ }
+#endif
+
+static const struct pci_error_handlers netxen_err_handler = {
+	.error_detected = netxen_io_error_detected,
+	.slot_reset = netxen_io_slot_reset,
+};
+
+static SIMPLE_DEV_PM_OPS(netxen_nic_pm_ops,
+			 netxen_nic_suspend,
+			 netxen_nic_resume);
+
+static struct pci_driver netxen_driver = {
+	.name = netxen_nic_driver_name,
+	.id_table = netxen_pci_tbl,
+	.probe = netxen_nic_probe,
+	.remove = netxen_nic_remove,
+	.driver.pm = &netxen_nic_pm_ops,
+	.shutdown = netxen_nic_shutdown,
+	.err_handler = &netxen_err_handler
+};
+
+static int __init netxen_init_module(void)
+{
+	printk(KERN_INFO "%s\n", netxen_nic_driver_string);
+
+#ifdef CONFIG_INET
+	register_netdevice_notifier(&netxen_netdev_cb);
+	register_inetaddr_notifier(&netxen_inetaddr_cb);
+#endif
+	return pci_register_driver(&netxen_driver);
+}
+
+module_init(netxen_init_module);
+
+static void __exit netxen_exit_module(void)
+{
+	pci_unregister_driver(&netxen_driver);
+
+#ifdef CONFIG_INET
+	unregister_inetaddr_notifier(&netxen_inetaddr_cb);
+	unregister_netdevice_notifier(&netxen_netdev_cb);
+#endif
+}
+
+module_exit(netxen_exit_module);