Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
[pandora-kernel.git] / drivers / net / netxen / netxen_nic_main.c
index 6797ed0..91d209a 100644 (file)
@@ -49,13 +49,18 @@ char netxen_nic_driver_name[] = "netxen_nic";
 static char netxen_nic_driver_string[] = "NetXen Network Driver version "
     NETXEN_NIC_LINUX_VERSIONID;
 
-#define NETXEN_NETDEV_WEIGHT 120
-#define NETXEN_ADAPTER_UP_MAGIC 777
-#define NETXEN_NIC_PEG_TUNE 0
+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;
 
 /* Local functions to NetXen NIC driver */
 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
-                                     const struct pci_device_id *ent);
+               const struct pci_device_id *ent);
 static void __devexit 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);
@@ -71,14 +76,19 @@ static irqreturn_t netxen_intr(int irq, void *data);
 static irqreturn_t netxen_msi_intr(int irq, void *data);
 
 /*  PCI Device ID Table  */
+#define ENTRY(device) \
+       {PCI_DEVICE(0x4040, (device)), \
+       .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
+
 static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
-       {PCI_DEVICE(0x4040, 0x0001), PCI_DEVICE_CLASS(0x020000, ~0)},
-       {PCI_DEVICE(0x4040, 0x0002), PCI_DEVICE_CLASS(0x020000, ~0)},
-       {PCI_DEVICE(0x4040, 0x0003), PCI_DEVICE_CLASS(0x020000, ~0)},
-       {PCI_DEVICE(0x4040, 0x0004), PCI_DEVICE_CLASS(0x020000, ~0)},
-       {PCI_DEVICE(0x4040, 0x0005), PCI_DEVICE_CLASS(0x020000, ~0)},
-       {PCI_DEVICE(0x4040, 0x0024), PCI_DEVICE_CLASS(0x020000, ~0)},
-       {PCI_DEVICE(0x4040, 0x0025), PCI_DEVICE_CLASS(0x020000, ~0)},
+       ENTRY(0x0001),
+       ENTRY(0x0002),
+       ENTRY(0x0003),
+       ENTRY(0x0004),
+       ENTRY(0x0005),
+       ENTRY(0x0024),
+       ENTRY(0x0025),
+       ENTRY(0x0100),
        {0,}
 };
 
@@ -104,95 +114,61 @@ static struct workqueue_struct *netxen_workq;
 
 static void netxen_watchdog(unsigned long);
 
-static void netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
-                                          uint32_t crb_producer)
+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,
+               uint32_t crb_producer)
 {
-       switch (adapter->portnum) {
-               case 0:
-                       writel(crb_producer, NETXEN_CRB_NORMALIZE
-                                       (adapter, CRB_CMD_PRODUCER_OFFSET));
-                       return;
-               case 1:
-                       writel(crb_producer, NETXEN_CRB_NORMALIZE
-                                       (adapter, CRB_CMD_PRODUCER_OFFSET_1));
-                       return;
-               case 2:
-                       writel(crb_producer, NETXEN_CRB_NORMALIZE
-                                       (adapter, CRB_CMD_PRODUCER_OFFSET_2));
-                       return;
-               case 3:
-                       writel(crb_producer, NETXEN_CRB_NORMALIZE
-                                       (adapter, CRB_CMD_PRODUCER_OFFSET_3));
-                       return;
-               default:
-                       printk(KERN_WARNING "We tried to update "
-                                       "CRB_CMD_PRODUCER_OFFSET for invalid "
-                                       "PCI function id %d\n",
-                                       adapter->portnum);
-                       return;
-       }
+       adapter->pci_write_normalize(adapter,
+                       adapter->crb_addr_cmd_producer, crb_producer);
 }
 
-static void netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
-                                          u32 crb_consumer)
+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,
+               u32 crb_consumer)
 {
-       switch (adapter->portnum) {
-               case 0:
-                       writel(crb_consumer, NETXEN_CRB_NORMALIZE
-                               (adapter, CRB_CMD_CONSUMER_OFFSET));
-                       return;
-               case 1:
-                       writel(crb_consumer, NETXEN_CRB_NORMALIZE
-                               (adapter, CRB_CMD_CONSUMER_OFFSET_1));
-                       return;
-               case 2:
-                       writel(crb_consumer, NETXEN_CRB_NORMALIZE
-                               (adapter, CRB_CMD_CONSUMER_OFFSET_2));
-                       return;
-               case 3:
-                       writel(crb_consumer, NETXEN_CRB_NORMALIZE
-                               (adapter, CRB_CMD_CONSUMER_OFFSET_3));
-                       return;
-               default:
-                       printk(KERN_WARNING "We tried to update "
-                                       "CRB_CMD_PRODUCER_OFFSET for invalid "
-                                       "PCI function id %d\n",
-                                       adapter->portnum);
-                       return;
-       }
+       adapter->pci_write_normalize(adapter,
+                       adapter->crb_addr_cmd_consumer, crb_consumer);
 }
 
-#define        ADAPTER_LIST_SIZE 12
-
-static uint32_t msi_tgt_status[4] = {
+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_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 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 struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
 
 static void netxen_nic_disable_int(struct netxen_adapter *adapter)
 {
        u32 mask = 0x7ff;
        int retries = 32;
-       int port = adapter->portnum;
        int pci_fn = adapter->ahw.pci_func;
 
        if (adapter->msi_mode != MSI_MODE_MULTIFUNC)
-               writel(0x0, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port]));
+               adapter->pci_write_normalize(adapter,
+                               adapter->crb_intr_mask, 0);
 
        if (adapter->intr_scheme != -1 &&
            adapter->intr_scheme != INTR_SCHEME_PERPORT)
-               writel(mask,PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK));
+               adapter->pci_write_immediate(adapter, ISR_INT_MASK, mask);
 
-       if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
+       if (!NETXEN_IS_MSI_FAMILY(adapter)) {
                do {
-                       writel(0xffffffff,
-                              PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_STATUS));
-                       mask = readl(pci_base_offset(adapter, ISR_INT_VECTOR));
+                       adapter->pci_write_immediate(adapter,
+                                       ISR_INT_TARGET_STATUS, 0xffffffff);
+                       mask = adapter->pci_read_immediate(adapter,
+                                       ISR_INT_VECTOR);
                        if (!(mask & 0x80))
                                break;
                        udelay(10);
@@ -204,8 +180,8 @@ static void netxen_nic_disable_int(struct netxen_adapter *adapter)
                }
        } else {
                if (adapter->msi_mode == MSI_MODE_MULTIFUNC) {
-                       writel(0xffffffff, PCI_OFFSET_SECOND_RANGE(adapter,
-                                               msi_tgt_status[pci_fn]));
+                       adapter->pci_write_immediate(adapter,
+                                       msi_tgt_status[pci_fn], 0xffffffff);
                }
        }
 }
@@ -213,7 +189,6 @@ static void netxen_nic_disable_int(struct netxen_adapter *adapter)
 static void netxen_nic_enable_int(struct netxen_adapter *adapter)
 {
        u32 mask;
-       int port = adapter->portnum;
 
        DPRINTK(1, INFO, "Entered ISR Enable \n");
 
@@ -231,24 +206,299 @@ static void netxen_nic_enable_int(struct netxen_adapter *adapter)
                        break;
                }
 
-               writel(mask, PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK));
+               adapter->pci_write_immediate(adapter, ISR_INT_MASK, mask);
        }
 
-       writel(0x1, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port]));
+       adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0x1);
 
-       if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
+       if (!NETXEN_IS_MSI_FAMILY(adapter)) {
                mask = 0xbff;
                if (adapter->intr_scheme != -1 &&
                        adapter->intr_scheme != INTR_SCHEME_PERPORT) {
-                       writel(0X0, NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
+                       adapter->pci_write_normalize(adapter,
+                                       CRB_INT_VECTOR, 0);
                }
-               writel(mask,
-                      PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_MASK));
+               adapter->pci_write_immediate(adapter,
+                               ISR_INT_TARGET_MASK, mask);
        }
 
        DPRINTK(1, INFO, "Done with enable Int\n");
 }
 
+static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id)
+{
+       struct pci_dev *pdev = adapter->pdev;
+       int err;
+       uint64_t mask;
+
+#ifdef CONFIG_IA64
+       adapter->dma_mask = DMA_32BIT_MASK;
+#else
+       if (revision_id >= NX_P3_B0) {
+               /* should go to DMA_64BIT_MASK */
+               adapter->dma_mask = DMA_39BIT_MASK;
+               mask = DMA_39BIT_MASK;
+       } else if (revision_id == NX_P3_A2) {
+               adapter->dma_mask = DMA_39BIT_MASK;
+               mask = DMA_39BIT_MASK;
+       } else if (revision_id == NX_P2_C1) {
+               adapter->dma_mask = DMA_35BIT_MASK;
+               mask = DMA_35BIT_MASK;
+       } else {
+               adapter->dma_mask = DMA_32BIT_MASK;
+               mask = DMA_32BIT_MASK;
+               goto set_32_bit_mask;
+       }
+
+       /*
+        * Consistent DMA mask is set to 32 bit because it cannot be set to
+        * 35 bits. For P3 also leave it at 32 bits for now. Only the rings
+        * come off this pool.
+        */
+       if (pci_set_dma_mask(pdev, mask) == 0 &&
+               pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK) == 0) {
+               adapter->pci_using_dac = 1;
+               return 0;
+       }
+#endif /* CONFIG_IA64 */
+
+set_32_bit_mask:
+       err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+       if (!err)
+               err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+       if (err) {
+               DPRINTK(ERR, "No usable DMA configuration, aborting:%d\n", err);
+               return err;
+       }
+
+       adapter->pci_using_dac = 0;
+       return 0;
+}
+
+static void netxen_check_options(struct netxen_adapter *adapter)
+{
+       switch (adapter->ahw.boardcfg.board_type) {
+       case NETXEN_BRDTYPE_P3_HMEZ:
+       case NETXEN_BRDTYPE_P3_XG_LOM:
+       case NETXEN_BRDTYPE_P3_10G_CX4:
+       case NETXEN_BRDTYPE_P3_10G_CX4_LP:
+       case NETXEN_BRDTYPE_P3_IMEZ:
+       case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
+       case NETXEN_BRDTYPE_P3_10G_XFP:
+       case NETXEN_BRDTYPE_P3_10000_BASE_T:
+               adapter->msix_supported = !!use_msi_x;
+               adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G;
+               break;
+
+       case NETXEN_BRDTYPE_P2_SB31_10G:
+       case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
+       case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
+       case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
+               adapter->msix_supported = 0;
+               adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G;
+               break;
+
+       case NETXEN_BRDTYPE_P3_REF_QG:
+       case NETXEN_BRDTYPE_P3_4_GB:
+       case NETXEN_BRDTYPE_P3_4_GB_MM:
+       case NETXEN_BRDTYPE_P2_SB35_4G:
+       case NETXEN_BRDTYPE_P2_SB31_2G:
+               adapter->msix_supported = 0;
+               adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G;
+               break;
+
+       default:
+               adapter->msix_supported = 0;
+               adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G;
+
+               printk(KERN_WARNING "Unknown board type(0x%x)\n",
+                               adapter->ahw.boardcfg.board_type);
+               break;
+       }
+
+       adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST;
+       adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS;
+       adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS;
+
+       adapter->max_possible_rss_rings = 1;
+       return;
+}
+
+static int
+netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
+{
+       int ret = 0;
+
+       if (first_boot == 0x55555555) {
+               /* This is the first boot after power up */
+
+               /* PCI bus master workaround */
+               adapter->hw_read_wx(adapter,
+                       NETXEN_PCIE_REG(0x4), &first_boot, 4);
+               if (!(first_boot & 0x4)) {
+                       first_boot |= 0x4;
+                       adapter->hw_write_wx(adapter,
+                               NETXEN_PCIE_REG(0x4), &first_boot, 4);
+                       adapter->hw_read_wx(adapter,
+                               NETXEN_PCIE_REG(0x4), &first_boot, 4);
+               }
+
+               /* This is the first boot after power up */
+               adapter->hw_read_wx(adapter,
+                       NETXEN_ROMUSB_GLB_SW_RESET, &first_boot, 4);
+               if (first_boot != 0x80000f) {
+                       /* clear the register for future unloads/loads */
+                       adapter->pci_write_normalize(adapter,
+                                       NETXEN_CAM_RAM(0x1fc), 0);
+                       ret = -1;
+               }
+
+               if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+                       /* Start P2 boot loader */
+                       adapter->pci_write_normalize(adapter,
+                               NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
+                       adapter->pci_write_normalize(adapter,
+                                       NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1);
+               }
+       }
+       return ret;
+}
+
+static void netxen_set_port_mode(struct netxen_adapter *adapter)
+{
+       u32 val, data;
+
+       val = adapter->ahw.boardcfg.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;
+                       adapter->hw_write_wx(adapter,
+                               NETXEN_PORT_MODE_ADDR, &data, 4);
+               } else if (port_mode == NETXEN_PORT_MODE_XG) {
+                       data = NETXEN_PORT_MODE_XG;
+                       adapter->hw_write_wx(adapter,
+                               NETXEN_PORT_MODE_ADDR, &data, 4);
+               } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
+                       data = NETXEN_PORT_MODE_AUTO_NEG_1G;
+                       adapter->hw_write_wx(adapter,
+                               NETXEN_PORT_MODE_ADDR, &data, 4);
+               } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
+                       data = NETXEN_PORT_MODE_AUTO_NEG_XG;
+                       adapter->hw_write_wx(adapter,
+                               NETXEN_PORT_MODE_ADDR, &data, 4);
+               } else {
+                       data = NETXEN_PORT_MODE_AUTO_NEG;
+                       adapter->hw_write_wx(adapter,
+                               NETXEN_PORT_MODE_ADDR, &data, 4);
+               }
+
+               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;
+               }
+               adapter->hw_write_wx(adapter, NETXEN_WOL_PORT_MODE,
+                       &wol_port_mode, 4);
+       }
+}
+
+#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 = pci_get_device(0x1166, 0x0140, NULL);
+       if (pdev) {
+               pci_dev_put(pdev);
+               adapter->hw_read_wx(adapter,
+                       NETXEN_PCIE_REG(PCIE_TGT_SPLIT_CHICKEN), &chicken, 4);
+               chicken |= 0x4000;
+               adapter->hw_write_wx(adapter,
+                       NETXEN_PCIE_REG(PCIE_TGT_SPLIT_CHICKEN), &chicken, 4);
+       }
+
+       pdev = adapter->pdev;
+
+       adapter->hw_read_wx(adapter,
+               NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4);
+       /* 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;
+               }
+               printk(KERN_INFO "%s Gen2 strapping detected\n",
+                               netxen_nic_driver_name);
+               c8c9value = 0xF1000;
+       } else {
+               /* set chicken3.24 if gen1 */
+               chicken |= 0x01000000;
+               printk(KERN_INFO "%s Gen1 strapping detected\n",
+                               netxen_nic_driver_name);
+               if (adapter->ahw.revision_id == NX_P3_B0)
+                       c8c9value = 0xF1020;
+               else
+                       c8c9value = 0;
+
+       }
+       adapter->hw_write_wx(adapter,
+               NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4);
+
+       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;
+       int pos;
+
+       pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
+       if (pos) {
+               pci_read_config_dword(pdev, pos, &control);
+               if (enable)
+                       control |= PCI_MSIX_FLAGS_ENABLE;
+               else
+                       control = 0;
+               pci_write_config_dword(pdev, pos, control);
+       }
+}
+
+static void netxen_init_msix_entries(struct netxen_adapter *adapter)
+{
+       int i;
+
+       for (i = 0; i < MSIX_ENTRIES_PER_ADAPTER; i++)
+               adapter->msix_entries[i].entry = i;
+}
+
 /*
  * netxen_nic_probe()
  *
@@ -274,28 +524,28 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 
        u8 __iomem *db_ptr = NULL;
-       unsigned long mem_base, mem_len, db_base, db_len;
-       int pci_using_dac, i = 0, err;
-       int ring;
-       struct netxen_recv_context *recv_ctx = NULL;
-       struct netxen_rcv_desc_ctx *rcv_desc = NULL;
-       struct netxen_cmd_buffer *cmd_buf_arr = NULL;
+       unsigned long mem_base, mem_len, db_base, db_len, pci_len0 = 0;
+       int i = 0, err;
+       int first_driver, first_boot;
        __le64 mac_addr[FLASH_NUM_PORTS + 1];
-       int valid_mac = 0;
        u32 val;
        int pci_func_id = PCI_FUNC(pdev->devfn);
        DECLARE_MAC_BUF(mac);
+       struct netxen_legacy_intr_set *legacy_intrp;
+       uint8_t revision_id;
 
        if (pci_func_id == 0)
-               printk(KERN_INFO "%s \n", netxen_nic_driver_string);
+               printk(KERN_INFO "%s\n", netxen_nic_driver_string);
 
        if (pdev->class != 0x020000) {
                printk(KERN_DEBUG "NetXen function %d, class %x will not "
                                "be enabled.\n",pci_func_id, pdev->class);
                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;
@@ -305,18 +555,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                goto err_out_disable_pdev;
 
        pci_set_master(pdev);
-       if (pdev->revision == NX_P2_C1 &&
-           (pci_set_dma_mask(pdev, DMA_35BIT_MASK) == 0) &&
-           (pci_set_consistent_dma_mask(pdev, DMA_35BIT_MASK) == 0)) {
-               pci_using_dac = 1;
-       } else {
-               if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) ||
-                   (err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK)))
-                       goto err_out_free_res;
-
-               pci_using_dac = 0;
-       }
-
 
        netdev = alloc_etherdev(sizeof(struct netxen_adapter));
        if(!netdev) {
@@ -329,13 +567,35 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        SET_NETDEV_DEV(netdev, &pdev->dev);
 
        adapter = netdev->priv;
-
-       adapter->ahw.pdev = pdev;
+       adapter->netdev  = netdev;
+       adapter->pdev    = pdev;
        adapter->ahw.pci_func  = pci_func_id;
 
+       revision_id = pdev->revision;
+       adapter->ahw.revision_id = revision_id;
+
+       err = nx_set_dma_mask(adapter, revision_id);
+       if (err)
+               goto err_out_free_netdev;
+
+       rwlock_init(&adapter->adapter_lock);
+       adapter->ahw.qdr_sn_window = -1;
+       adapter->ahw.ddr_mn_window = -1;
+
        /* remap phys address */
        mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
        mem_len = pci_resource_len(pdev, 0);
+       pci_len0 = 0;
+
+       adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
+       adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
+       adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
+       adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
+       adapter->pci_read_normalize = netxen_nic_pci_read_normalize_128M;
+       adapter->pci_write_normalize = netxen_nic_pci_write_normalize_128M;
+       adapter->pci_set_window = netxen_nic_pci_set_window_128M;
+       adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
+       adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
 
        /* 128 Meg of memory */
        if (mem_len == NETXEN_PCI_128MB_SIZE) {
@@ -352,27 +612,48 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                        SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
                first_page_group_start = 0;
                first_page_group_end   = 0;
+       } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
+               adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
+               adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
+               adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
+               adapter->pci_write_immediate =
+                       netxen_nic_pci_write_immediate_2M;
+               adapter->pci_read_normalize = netxen_nic_pci_read_normalize_2M;
+               adapter->pci_write_normalize =
+                       netxen_nic_pci_write_normalize_2M;
+               adapter->pci_set_window = netxen_nic_pci_set_window_2M;
+               adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
+               adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
+
+               mem_ptr0 = ioremap(mem_base, mem_len);
+               pci_len0 = mem_len;
+               first_page_group_start = 0;
+               first_page_group_end   = 0;
+
+               adapter->ahw.ddr_mn_window = 0;
+               adapter->ahw.qdr_sn_window = 0;
+
+               adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
+                       (pci_func_id * 0x20);
+               adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
+               if (pci_func_id < 4)
+                       adapter->ahw.ms_win_crb += (pci_func_id * 0x20);
+               else
+                       adapter->ahw.ms_win_crb +=
+                                       0xA0 + ((pci_func_id - 4) * 0x10);
        } else {
                err = -EIO;
                goto err_out_free_netdev;
        }
 
-       if ((!mem_ptr0 && mem_len == NETXEN_PCI_128MB_SIZE) ||
-                       !mem_ptr1 || !mem_ptr2) {
-               DPRINTK(ERR,
-                       "Cannot remap adapter memory aborting.:"
-                       "0 -> %p, 1 -> %p, 2 -> %p\n",
-                       mem_ptr0, mem_ptr1, mem_ptr2);
+       dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 
-               err = -EIO;
-               goto err_out_iounmap;
-       }
        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);
+                               netxen_nic_driver_name);
                err = -EIO;
                goto err_out_iounmap;
        }
@@ -382,13 +663,14 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        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);
+                               netxen_nic_driver_name);
                err = -EIO;
                goto err_out_iounmap;
        }
        DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr);
 
        adapter->ahw.pci_base0 = mem_ptr0;
+       adapter->ahw.pci_len0 = pci_len0;
        adapter->ahw.first_page_group_start = first_page_group_start;
        adapter->ahw.first_page_group_end   = first_page_group_end;
        adapter->ahw.pci_base1 = mem_ptr1;
@@ -396,11 +678,18 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        adapter->ahw.db_base = db_ptr;
        adapter->ahw.db_len = db_len;
 
-       adapter->netdev  = netdev;
-       adapter->pdev    = pdev;
-
        netif_napi_add(netdev, &adapter->napi,
-                      netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
+                       netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
+
+       if (revision_id >= NX_P3_B0)
+               legacy_intrp = &legacy_intr[pci_func_id];
+       else
+               legacy_intrp = &legacy_intr[0];
+
+       adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
+       adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
+       adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
+       adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
 
        /* this will be read from FW later */
        adapter->intr_scheme = -1;
@@ -410,12 +699,23 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        adapter->portnum = pci_func_id;
        adapter->status   &= ~NETXEN_NETDEV_STATUS;
        adapter->rx_csum = 1;
+       adapter->mc_enabled = 0;
+       if (NX_IS_REVISION_P3(revision_id)) {
+               adapter->max_mc_count = 38;
+               adapter->max_rds_rings = 2;
+       } else {
+               adapter->max_mc_count = 16;
+               adapter->max_rds_rings = 3;
+       }
 
        netdev->open               = netxen_nic_open;
        netdev->stop               = netxen_nic_close;
        netdev->hard_start_xmit    = netxen_nic_xmit_frame;
        netdev->get_stats          = netxen_nic_get_stats;
-       netdev->set_multicast_list = netxen_nic_set_multi;
+       if (NX_IS_REVISION_P3(revision_id))
+               netdev->set_multicast_list = netxen_p3_nic_set_multi;
+       else
+               netdev->set_multicast_list = netxen_p2_nic_set_multi;
        netdev->set_mac_address    = netxen_nic_set_mac;
        netdev->change_mtu         = netxen_nic_change_mtu;
        netdev->tx_timeout         = netxen_tx_timeout;
@@ -431,18 +731,14 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        netdev->features = NETIF_F_SG;
        netdev->features |= NETIF_F_IP_CSUM;
        netdev->features |= NETIF_F_TSO;
+       if (NX_IS_REVISION_P3(revision_id)) {
+               netdev->features |= NETIF_F_IPV6_CSUM;
+               netdev->features |= NETIF_F_TSO6;
+       }
 
-       if (pci_using_dac)
+       if (adapter->pci_using_dac)
                netdev->features |= NETIF_F_HIGHDMA;
 
-       if (pci_enable_msi(pdev))
-               adapter->flags &= ~NETXEN_NIC_MSI_ENABLED;
-       else
-               adapter->flags |= NETXEN_NIC_MSI_ENABLED;
-
-       netdev->irq = pdev->irq;
-       INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
-
        /*
         * 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.
@@ -451,87 +747,13 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
        if (netxen_nic_get_board_info(adapter) != 0) {
                printk("%s: Error getting board config info.\n",
-                      netxen_nic_driver_name);
+                               netxen_nic_driver_name);
                err = -EIO;
                goto err_out_iounmap;
        }
 
-       /*
-        *  Adapter in our case is quad port so initialize it before
-        *  initializing the ports
-        */
-
        netxen_initialize_adapter_ops(adapter);
 
-       adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST;
-       if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB35_4G) ||
-                       (adapter->ahw.boardcfg.board_type ==
-                        NETXEN_BRDTYPE_P2_SB31_2G))
-               adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G;
-       else
-               adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS;
-       adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS;
-       adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS;
-
-       cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE);
-       if (cmd_buf_arr == NULL) {
-               printk(KERN_ERR
-                      "%s: Could not allocate cmd_buf_arr memory:%d\n",
-                      netxen_nic_driver_name, (int)TX_RINGSIZE);
-               err = -ENOMEM;
-               goto err_out_free_adapter;
-       }
-       memset(cmd_buf_arr, 0, TX_RINGSIZE);
-       adapter->cmd_buf_arr = cmd_buf_arr;
-
-       for (i = 0; i < MAX_RCV_CTX; ++i) {
-               recv_ctx = &adapter->recv_ctx[i];
-               for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
-                       rcv_desc = &recv_ctx->rcv_desc[ring];
-                       switch (RCV_DESC_TYPE(ring)) {
-                       case RCV_DESC_NORMAL:
-                               rcv_desc->max_rx_desc_count =
-                                   adapter->max_rx_desc_count;
-                               rcv_desc->flags = RCV_DESC_NORMAL;
-                               rcv_desc->dma_size = RX_DMA_MAP_LEN;
-                               rcv_desc->skb_size = MAX_RX_BUFFER_LENGTH;
-                               break;
-
-                       case RCV_DESC_JUMBO:
-                               rcv_desc->max_rx_desc_count =
-                                   adapter->max_jumbo_rx_desc_count;
-                               rcv_desc->flags = RCV_DESC_JUMBO;
-                               rcv_desc->dma_size = RX_JUMBO_DMA_MAP_LEN;
-                               rcv_desc->skb_size = MAX_RX_JUMBO_BUFFER_LENGTH;
-                               break;
-
-                       case RCV_RING_LRO:
-                               rcv_desc->max_rx_desc_count =
-                                   adapter->max_lro_rx_desc_count;
-                               rcv_desc->flags = RCV_DESC_LRO;
-                               rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN;
-                               rcv_desc->skb_size = MAX_RX_LRO_BUFFER_LENGTH;
-                               break;
-
-                       }
-                       rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *)
-                           vmalloc(RCV_BUFFSIZE);
-
-                       if (rcv_desc->rx_buf_arr == NULL) {
-                               printk(KERN_ERR "%s: Could not allocate "
-                                      "rcv_desc->rx_buf_arr memory:%d\n",
-                                      netxen_nic_driver_name,
-                                      (int)RCV_BUFFSIZE);
-                               err = -ENOMEM;
-                               goto err_out_free_rx_buffer;
-                       }
-                       memset(rcv_desc->rx_buf_arr, 0, RCV_BUFFSIZE);
-               }
-
-       }
-
-       netxen_initialize_adapter_sw(adapter);  /* initialize the buffers in adapter */
-
        /* Mezz cards have PCI function 0,2,3 enabled */
        switch (adapter->ahw.boardcfg.board_type) {
        case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
@@ -543,90 +765,71 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                break;
        }
 
-       init_timer(&adapter->watchdog_timer);
-       adapter->ahw.xg_linkup = 0;
-       adapter->watchdog_timer.function = &netxen_watchdog;
-       adapter->watchdog_timer.data = (unsigned long)adapter;
-       INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
-       adapter->ahw.pdev = pdev;
-       adapter->ahw.revision_id = pdev->revision;
-
-       /* make sure Window == 1 */
-       netxen_nic_pci_change_crbwindow(adapter, 1);
+       /*
+        * This call will setup various max rx/tx counts.
+        * It must be done before any buffer/ring allocations.
+        */
+       netxen_check_options(adapter);
 
+       first_driver = 0;
+       if (NX_IS_REVISION_P3(revision_id)) {
+               if (adapter->ahw.pci_func == 0)
+                       first_driver = 1;
+       } else {
+               if (adapter->portnum == 0)
+                       first_driver = 1;
+       }
+       adapter->crb_addr_cmd_producer = crb_cmd_producer[adapter->portnum];
+       adapter->crb_addr_cmd_consumer = crb_cmd_consumer[adapter->portnum];
        netxen_nic_update_cmd_producer(adapter, 0);
        netxen_nic_update_cmd_consumer(adapter, 0);
-       writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO));
 
-       if (netxen_is_flash_supported(adapter) == 0 &&
-           netxen_get_flash_mac_addr(adapter, mac_addr) == 0)
-               valid_mac = 1;
-       else
-               valid_mac = 0;
-
-       if (valid_mac) {
-               unsigned char *p = (unsigned char *)&mac_addr[adapter->portnum];
-               netdev->dev_addr[0] = *(p + 5);
-               netdev->dev_addr[1] = *(p + 4);
-               netdev->dev_addr[2] = *(p + 3);
-               netdev->dev_addr[3] = *(p + 2);
-               netdev->dev_addr[4] = *(p + 1);
-               netdev->dev_addr[5] = *(p + 0);
+       if (first_driver) {
+               first_boot = adapter->pci_read_normalize(adapter,
+                               NETXEN_CAM_RAM(0x1fc));
 
-               memcpy(netdev->perm_addr, netdev->dev_addr,
-                       netdev->addr_len);
-               if (!is_valid_ether_addr(netdev->perm_addr)) {
-                       printk(KERN_ERR "%s: Bad MAC address %s.\n",
-                              netxen_nic_driver_name,
-                              print_mac(mac, netdev->dev_addr));
-               } else {
-                       if (adapter->macaddr_set)
-                               adapter->macaddr_set(adapter,
-                                                       netdev->dev_addr);
+               err = netxen_check_hw_init(adapter, first_boot);
+               if (err) {
+                       printk(KERN_ERR "%s: error in init HW init sequence\n",
+                                       netxen_nic_driver_name);
+                       goto err_out_iounmap;
                }
-       }
 
-       if (adapter->portnum == 0) {
-               err = netxen_initialize_adapter_offload(adapter);
-               if (err)
-                       goto err_out_free_rx_buffer;
-               val = readl(NETXEN_CRB_NORMALIZE(adapter,
-                                       NETXEN_CAM_RAM(0x1fc)));
-               if (val == 0x55555555) {
-                   /* This is the first boot after power up */
-                   netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val);
-                       if (!(val & 0x4)) {
-                               val |= 0x4;
-                               netxen_nic_write_w0(adapter, NETXEN_PCIE_REG(0x4), val);
-                               netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val);
-                               if (!(val & 0x4))
-                                       printk(KERN_ERR "%s: failed to set MSI bit in PCI-e reg\n",
-                                                       netxen_nic_driver_name);
-                       }
-                   val = readl(NETXEN_CRB_NORMALIZE(adapter,
-                                       NETXEN_ROMUSB_GLB_SW_RESET));
-                   printk(KERN_INFO"NetXen: read 0x%08x for reset reg.\n",val);
-                   if (val != 0x80000f) {
-                       /* clear the register for future unloads/loads */
-                               writel(0, NETXEN_CRB_NORMALIZE(adapter,
-                                                       NETXEN_CAM_RAM(0x1fc)));
-                               printk(KERN_ERR "ERROR in NetXen HW init sequence.\n");
-                               err = -ENODEV;
-                               goto err_out_free_dev;
-                   }
-               } else {
-                       writel(0, NETXEN_CRB_NORMALIZE(adapter,
-                                               CRB_CMDPEG_STATE));
+               if (NX_IS_REVISION_P3(revision_id))
+                       netxen_set_port_mode(adapter);
+
+               if (first_boot != 0x55555555) {
+                       adapter->pci_write_normalize(adapter,
+                                               CRB_CMDPEG_STATE, 0);
                        netxen_pinit_from_rom(adapter, 0);
                        msleep(1);
                        netxen_load_firmware(adapter);
-                       netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
                }
 
-               /* clear the register for future unloads/loads */
-               writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc)));
-               dev_info(&pdev->dev, "cmdpeg state: 0x%0x\n",
-                       readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)));
+               if (NX_IS_REVISION_P3(revision_id))
+                       netxen_pcie_strap_init(adapter);
+
+               if (NX_IS_REVISION_P2(revision_id)) {
+
+                       /* Initialize multicast addr pool owners */
+                       val = 0x7654;
+                       if (adapter->ahw.board_type == NETXEN_NIC_XGBE)
+                               val |= 0x0f000000;
+                       netxen_crb_writelit_adapter(adapter,
+                                       NETXEN_MAC_ADDR_CNTL_REG, val);
+
+               }
+
+               if ((first_boot == 0x55555555) &&
+                       (NX_IS_REVISION_P2(revision_id))) {
+                       /* Unlock the HW, prompting the boot sequence */
+                       adapter->pci_write_normalize(adapter,
+                                       NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1);
+               }
+
+               err = netxen_initialize_adapter_offload(adapter);
+               if (err)
+                       goto err_out_iounmap;
 
                /*
                 * Tell the hardware our version number.
@@ -634,24 +837,101 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                i = (_NETXEN_NIC_LINUX_MAJOR << 16)
                        | ((_NETXEN_NIC_LINUX_MINOR << 8))
                        | (_NETXEN_NIC_LINUX_SUBVERSION);
-               writel(i, NETXEN_CRB_NORMALIZE(adapter, CRB_DRIVER_VERSION));
+               adapter->pci_write_normalize(adapter, CRB_DRIVER_VERSION, i);
 
-               /* Unlock the HW, prompting the boot sequence */
-               writel(1,
-                       NETXEN_CRB_NORMALIZE(adapter,
-                               NETXEN_ROMUSB_GLB_PEGTUNE_DONE));
                /* Handshake with the card before we register the devices. */
                netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
+
+       }       /* first_driver */
+
+       netxen_nic_flash_print(adapter);
+
+       if (NX_IS_REVISION_P3(revision_id)) {
+               adapter->hw_read_wx(adapter,
+                               NETXEN_MIU_MN_CONTROL, &val, 4);
+               adapter->ahw.cut_through = (val & 0x4) ? 1 : 0;
+               dev_info(&pdev->dev, "firmware running in %s mode\n",
+               adapter->ahw.cut_through ? "cut through" : "legacy");
        }
 
        /*
         * See if the firmware gave us a virtual-physical port mapping.
         */
        adapter->physical_port = adapter->portnum;
-       i = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_V2P(adapter->portnum)));
+       i = adapter->pci_read_normalize(adapter, CRB_V2P(adapter->portnum));
        if (i != 0x55555555)
                adapter->physical_port = i;
 
+       adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
+
+       netxen_set_msix_bit(pdev, 0);
+
+       if (NX_IS_REVISION_P3(revision_id)) {
+               if ((mem_len != NETXEN_PCI_128MB_SIZE) &&
+                       mem_len != NETXEN_PCI_2MB_SIZE)
+                       adapter->msix_supported = 0;
+       }
+
+       if (adapter->msix_supported) {
+
+               netxen_init_msix_entries(adapter);
+
+               if (pci_enable_msix(pdev, adapter->msix_entries,
+                                       MSIX_ENTRIES_PER_ADAPTER))
+                       goto request_msi;
+
+               adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
+               netxen_set_msix_bit(pdev, 1);
+               dev_info(&pdev->dev, "using msi-x interrupts\n");
+
+       } else {
+request_msi:
+               if (use_msi && !pci_enable_msi(pdev)) {
+                       adapter->flags |= NETXEN_NIC_MSI_ENABLED;
+                       dev_info(&pdev->dev, "using msi interrupts\n");
+               } else
+                       dev_info(&pdev->dev, "using legacy interrupts\n");
+       }
+
+       if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
+               netdev->irq = adapter->msix_entries[0].vector;
+       else
+               netdev->irq = pdev->irq;
+
+       err = netxen_receive_peg_ready(adapter);
+       if (err)
+               goto err_out_disable_msi;
+
+       init_timer(&adapter->watchdog_timer);
+       adapter->ahw.linkup = 0;
+       adapter->watchdog_timer.function = &netxen_watchdog;
+       adapter->watchdog_timer.data = (unsigned long)adapter;
+       INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
+       INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
+
+       if (netxen_is_flash_supported(adapter) == 0 &&
+                       netxen_get_flash_mac_addr(adapter, mac_addr) == 0) {
+               unsigned char *p;
+
+               p = (unsigned char *)&mac_addr[adapter->portnum];
+               netdev->dev_addr[0] = *(p + 5);
+               netdev->dev_addr[1] = *(p + 4);
+               netdev->dev_addr[2] = *(p + 3);
+               netdev->dev_addr[3] = *(p + 2);
+               netdev->dev_addr[4] = *(p + 1);
+               netdev->dev_addr[5] = *(p + 0);
+
+               memcpy(netdev->perm_addr, netdev->dev_addr,
+                       netdev->addr_len);
+               if (!is_valid_ether_addr(netdev->perm_addr)) {
+                       printk(KERN_ERR "%s: Bad MAC address %s.\n",
+                                       netxen_nic_driver_name,
+                                       print_mac(mac, netdev->dev_addr));
+               } else {
+                       adapter->macaddr_set(adapter, netdev->dev_addr);
+               }
+       }
+
        netif_carrier_off(netdev);
        netif_stop_queue(netdev);
 
@@ -660,41 +940,37 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
                               " aborting\n", netxen_nic_driver_name,
                               adapter->portnum);
                err = -EIO;
-               goto err_out_free_dev;
+               goto err_out_disable_msi;
        }
 
-       netxen_nic_flash_print(adapter);
        pci_set_drvdata(pdev, adapter);
 
-       return 0;
-
-err_out_free_dev:
-       if (adapter->portnum == 0)
-               netxen_free_adapter_offload(adapter);
-
-err_out_free_rx_buffer:
-       for (i = 0; i < MAX_RCV_CTX; ++i) {
-               recv_ctx = &adapter->recv_ctx[i];
-               for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
-                       rcv_desc = &recv_ctx->rcv_desc[ring];
-                       if (rcv_desc->rx_buf_arr != NULL) {
-                               vfree(rcv_desc->rx_buf_arr);
-                               rcv_desc->rx_buf_arr = NULL;
-                       }
-               }
+       switch (adapter->ahw.board_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;
        }
-       vfree(cmd_buf_arr);
 
-err_out_free_adapter:
+       return 0;
+
+err_out_disable_msi:
+       if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
+               pci_disable_msix(pdev);
        if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
                pci_disable_msi(pdev);
 
-       pci_set_drvdata(pdev, NULL);
+       if (first_driver)
+               netxen_free_adapter_offload(adapter);
 
+err_out_iounmap:
        if (db_ptr)
                iounmap(db_ptr);
 
-err_out_iounmap:
        if (mem_ptr0)
                iounmap(mem_ptr0);
        if (mem_ptr1)
@@ -709,6 +985,7 @@ err_out_free_res:
        pci_release_regions(pdev);
 
 err_out_disable_pdev:
+       pci_set_drvdata(pdev, NULL);
        pci_disable_device(pdev);
        return err;
 }
@@ -717,11 +994,6 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
 {
        struct netxen_adapter *adapter;
        struct net_device *netdev;
-       struct netxen_rx_buffer *buffer;
-       struct netxen_recv_context *recv_ctx;
-       struct netxen_rcv_desc_ctx *rcv_desc;
-       int i, ctxid, ring;
-       static int init_firmware_done = 0;
 
        adapter = pci_get_drvdata(pdev);
        if (adapter == NULL)
@@ -732,36 +1004,18 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
        unregister_netdev(netdev);
 
        if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
-               init_firmware_done++;
                netxen_free_hw_resources(adapter);
+               netxen_free_sw_resources(adapter);
        }
 
-       for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) {
-               recv_ctx = &adapter->recv_ctx[ctxid];
-               for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
-                       rcv_desc = &recv_ctx->rcv_desc[ring];
-                       for (i = 0; i < rcv_desc->max_rx_desc_count; ++i) {
-                               buffer = &(rcv_desc->rx_buf_arr[i]);
-                               if (buffer->state == NETXEN_BUFFER_FREE)
-                                       continue;
-                               pci_unmap_single(pdev, buffer->dma,
-                                                rcv_desc->dma_size,
-                                                PCI_DMA_FROMDEVICE);
-                               if (buffer->skb != NULL)
-                                       dev_kfree_skb_any(buffer->skb);
-                       }
-                       vfree(rcv_desc->rx_buf_arr);
-               }
-       }
-
-       vfree(adapter->cmd_buf_arr);
-
        if (adapter->portnum == 0)
                netxen_free_adapter_offload(adapter);
 
        if (adapter->irq)
                free_irq(adapter->irq, adapter);
 
+       if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
+               pci_disable_msix(pdev);
        if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
                pci_disable_msi(pdev);
 
@@ -799,51 +1053,69 @@ static int netxen_nic_open(struct net_device *netdev)
                        return -EIO;
                }
 
-               /* setup all the resources for the Phantom... */
-               /* this include the descriptors for rcv, tx, and status */
-               netxen_nic_clear_stats(adapter);
-               err = netxen_nic_hw_resources(adapter);
+               err = netxen_alloc_sw_resources(adapter);
                if (err) {
-                       printk(KERN_ERR "Error in setting hw resources:%d\n",
-                              err);
+                       printk(KERN_ERR "%s: Error in setting sw resources\n",
+                                       netdev->name);
                        return err;
                }
+
+               netxen_nic_clear_stats(adapter);
+
+               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 (adapter->fw_major < 4) {
+                       adapter->crb_addr_cmd_producer =
+                               crb_cmd_producer[adapter->portnum];
+                       adapter->crb_addr_cmd_consumer =
+                               crb_cmd_consumer[adapter->portnum];
+               }
+
+               netxen_nic_update_cmd_producer(adapter, 0);
+               netxen_nic_update_cmd_consumer(adapter, 0);
+
                for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
-                       for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++)
+                       for (ring = 0; ring < adapter->max_rds_rings; ring++)
                                netxen_post_rx_buffers(adapter, ctx, ring);
                }
-               adapter->irq = adapter->ahw.pdev->irq;
-               if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
+               if (NETXEN_IS_MSI_FAMILY(adapter))
                        handler = netxen_msi_intr;
                else {
                        flags |= IRQF_SHARED;
                        handler = netxen_intr;
                }
+               adapter->irq = netdev->irq;
                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);
-                       return err;
+                       goto err_out_free_hw;
                }
 
                adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
        }
+
        /* 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) {
+       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 -EIO;
+               goto err_out_free_irq;
        }
-       if (adapter->macaddr_set)
-               adapter->macaddr_set(adapter, netdev->dev_addr);
+       adapter->macaddr_set(adapter, netdev->dev_addr);
 
        netxen_nic_set_link_parameters(adapter);
 
-       netxen_nic_set_multi(netdev);
-       if (adapter->set_mtu)
+       netdev->set_multicast_list(netdev);
+       if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
+               nx_fw_cmd_set_mtu(adapter, netdev->mtu);
+       else
                adapter->set_mtu(adapter, netdev->mtu);
 
        mod_timer(&adapter->watchdog_timer, jiffies);
@@ -854,6 +1126,14 @@ static int netxen_nic_open(struct net_device *netdev)
        netif_start_queue(netdev);
 
        return 0;
+
+err_out_free_irq:
+       free_irq(adapter->irq, adapter);
+err_out_free_hw:
+       netxen_free_hw_resources(adapter);
+err_out_free_sw:
+       netxen_free_sw_resources(adapter);
+       return err;
 }
 
 /*
@@ -862,9 +1142,6 @@ static int netxen_nic_open(struct net_device *netdev)
 static int netxen_nic_close(struct net_device *netdev)
 {
        struct netxen_adapter *adapter = netdev_priv(netdev);
-       int i, j;
-       struct netxen_cmd_buffer *cmd_buff;
-       struct netxen_skb_frag *buffrag;
 
        netif_carrier_off(netdev);
        netif_stop_queue(netdev);
@@ -875,30 +1152,8 @@ static int netxen_nic_close(struct net_device *netdev)
 
        netxen_nic_disable_int(adapter);
 
-       cmd_buff = adapter->cmd_buf_arr;
-       for (i = 0; i < adapter->max_tx_desc_count; i++) {
-               buffrag = cmd_buff->frag_array;
-               if (buffrag->dma) {
-                       pci_unmap_single(adapter->pdev, buffrag->dma,
-                                        buffrag->length, PCI_DMA_TODEVICE);
-                       buffrag->dma = 0ULL;
-               }
-               for (j = 0; j < cmd_buff->frag_count; j++) {
-                       buffrag++;
-                       if (buffrag->dma) {
-                               pci_unmap_page(adapter->pdev, buffrag->dma,
-                                              buffrag->length,
-                                              PCI_DMA_TODEVICE);
-                               buffrag->dma = 0ULL;
-                       }
-               }
-               /* Free the skb we received in netxen_nic_xmit_frame */
-               if (cmd_buff->skb) {
-                       dev_kfree_skb_any(cmd_buff->skb);
-                       cmd_buff->skb = NULL;
-               }
-               cmd_buff++;
-       }
+       netxen_release_tx_buffers(adapter);
+
        if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
                FLUSH_SCHEDULED_WORK();
                del_timer_sync(&adapter->watchdog_timer);
@@ -907,6 +1162,31 @@ static int netxen_nic_close(struct net_device *netdev)
        return 0;
 }
 
+void netxen_tso_check(struct netxen_adapter *adapter,
+                     struct cmd_desc_type0 *desc, struct sk_buff *skb)
+{
+       if (desc->mss) {
+               desc->total_hdr_length = (sizeof(struct ethhdr) +
+                                         ip_hdrlen(skb) + tcp_hdrlen(skb));
+
+               if ((NX_IS_REVISION_P3(adapter->ahw.revision_id)) &&
+                               (skb->protocol == htons(ETH_P_IPV6)))
+                       netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO6);
+               else
+                       netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO);
+
+       } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
+               if (ip_hdr(skb)->protocol == IPPROTO_TCP)
+                       netxen_set_cmd_desc_opcode(desc, TX_TCP_PKT);
+               else if (ip_hdr(skb)->protocol == IPPROTO_UDP)
+                       netxen_set_cmd_desc_opcode(desc, TX_UDP_PKT);
+               else
+                       return;
+       }
+       desc->tcp_hdr_offset = skb_transport_offset(skb);
+       desc->ip_hdr_offset = skb_network_offset(skb);
+}
+
 static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 {
        struct netxen_adapter *adapter = netdev_priv(netdev);
@@ -928,7 +1208,7 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 
        /* There 4 fragments per descriptor */
        no_of_desc = (frag_count + 3) >> 2;
-       if (netdev->features & NETIF_F_TSO) {
+       if (netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) {
                if (skb_shinfo(skb)->gso_size > 0) {
 
                        no_of_desc++;
@@ -955,7 +1235,8 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
        memset(hwdesc, 0, sizeof(struct cmd_desc_type0));
        /* Take skb->data itself */
        pbuf = &adapter->cmd_buf_arr[producer];
-       if ((netdev->features & NETIF_F_TSO) && skb_shinfo(skb)->gso_size > 0) {
+       if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
+                       skb_shinfo(skb)->gso_size > 0) {
                pbuf->mss = skb_shinfo(skb)->gso_size;
                hwdesc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
        } else {
@@ -1082,6 +1363,89 @@ static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
        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 = adapter->pci_read_normalize(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",
+                      netxen_nic_driver_name, temp_val);
+
+               netif_carrier_off(netdev);
+               netif_stop_queue(netdev);
+               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",
+                              netxen_nic_driver_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", netxen_nic_driver_name,
+                              temp_val);
+               }
+       }
+       adapter->temp = temp_state;
+       return rv;
+}
+
+static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
+{
+       struct net_device *netdev = adapter->netdev;
+       u32 val, port, linkup;
+
+       port = adapter->physical_port;
+
+       if (adapter->ahw.board_type == NETXEN_NIC_GBE) {
+               val = adapter->pci_read_normalize(adapter, CRB_XG_STATE);
+               linkup = (val >> port) & 1;
+       } else {
+               if (adapter->fw_major < 4) {
+                       val = adapter->pci_read_normalize(adapter,
+                                       CRB_XG_STATE);
+                       val = (val >> port*8) & 0xff;
+                       linkup = (val == XG_LINK_UP);
+               } else {
+                       val = adapter->pci_read_normalize(adapter,
+                               CRB_XG_STATE_P3);
+                       val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
+                       linkup = (val == XG_LINK_UP_P3);
+               }
+       }
+
+       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);
+               }
+       } 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);
+               }
+       }
+}
+
 static void netxen_watchdog(unsigned long v)
 {
        struct netxen_adapter *adapter = (struct netxen_adapter *)v;
@@ -1089,6 +1453,19 @@ static void netxen_watchdog(unsigned long v)
        SCHEDULE_WORK(&adapter->watchdog_task);
 }
 
+void netxen_watchdog_task(struct work_struct *work)
+{
+       struct netxen_adapter *adapter =
+               container_of(work, struct netxen_adapter, watchdog_task);
+
+       if ((adapter->portnum  == 0) && netxen_nic_check_temp(adapter))
+               return;
+
+       netxen_nic_handle_phy_intr(adapter);
+
+       mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
+}
+
 static void netxen_tx_timeout(struct net_device *netdev)
 {
        struct netxen_adapter *adapter = (struct netxen_adapter *)
@@ -1114,6 +1491,38 @@ static void netxen_tx_timeout_task(struct work_struct *work)
        netif_wake_queue(adapter->netdev);
 }
 
+/*
+ * netxen_nic_get_stats - Get System Network Statistics
+ * @netdev: network interface device structure
+ */
+struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
+{
+       struct netxen_adapter *adapter = netdev_priv(netdev);
+       struct net_device_stats *stats = &adapter->net_stats;
+
+       memset(stats, 0, sizeof(*stats));
+
+       /* total packets received   */
+       stats->rx_packets = adapter->stats.no_rcv;
+       /* total packets transmitted    */
+       stats->tx_packets = adapter->stats.xmitedframes +
+               adapter->stats.xmitfinished;
+       /* total bytes received     */
+       stats->rx_bytes = adapter->stats.rxbytes;
+       /* total bytes transmitted  */
+       stats->tx_bytes = adapter->stats.txbytes;
+       /* bad packets received     */
+       stats->rx_errors = adapter->stats.rcvdbadskb;
+       /* packet transmit problems */
+       stats->tx_errors = adapter->stats.nocmddescriptor;
+       /* no space in linux buffers    */
+       stats->rx_dropped = adapter->stats.rxdropped;
+       /* no space available in linux  */
+       stats->tx_dropped = adapter->stats.txdropped;
+
+       return stats;
+}
+
 static inline void
 netxen_handle_int(struct netxen_adapter *adapter)
 {
@@ -1121,20 +1530,20 @@ netxen_handle_int(struct netxen_adapter *adapter)
        napi_schedule(&adapter->napi);
 }
 
-irqreturn_t netxen_intr(int irq, void *data)
+static irqreturn_t netxen_intr(int irq, void *data)
 {
        struct netxen_adapter *adapter = data;
        u32 our_int = 0;
 
-       our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
+       our_int = adapter->pci_read_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 */
-               writel(our_int & ~((u32)(0x80 << adapter->portnum)),
-                       NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
+               adapter->pci_write_normalize(adapter, CRB_INT_VECTOR,
+                               our_int & ~((u32)(0x80 << adapter->portnum)));
        }
 
        netxen_handle_int(adapter);
@@ -1142,7 +1551,7 @@ irqreturn_t netxen_intr(int irq, void *data)
        return IRQ_HANDLED;
 }
 
-irqreturn_t netxen_msi_intr(int irq, void *data)
+static irqreturn_t netxen_msi_intr(int irq, void *data)
 {
        struct netxen_adapter *adapter = data;
 
@@ -1216,10 +1625,6 @@ module_init(netxen_init_module);
 
 static void __exit netxen_exit_module(void)
 {
-       /*
-        * Wait for some time to allow the dma to drain, if any.
-        */
-       msleep(100);
        pci_unregister_driver(&netxen_driver);
        destroy_workqueue(netxen_workq);
 }