]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/net/s2io.c
Merge branch 'master'
[linux-2.6-omap-h63xx.git] / drivers / net / s2io.c
index 7ca78228b104f2fa165322a47826e056b4754314..d303d162974f9caedf905bd603c583a8b6c538b9 100644 (file)
@@ -1,5 +1,5 @@
 /************************************************************************
- * s2io.c: A Linux PCI-X Ethernet driver for S2IO 10GbE Server NIC
+ * s2io.c: A Linux PCI-X Ethernet driver for Neterion 10GbE Server NIC
  * Copyright(c) 2002-2005 Neterion Inc.
 
  * This software may be used and distributed according to the terms of
@@ -28,7 +28,7 @@
  * explaination of all the variables.
  * rx_ring_num : This can be used to program the number of receive rings used
  * in the driver.
- * rx_ring_len: This defines the number of descriptors each ring can have. This
+ * rx_ring_sz: This defines the number of descriptors each ring can have. This
  * is also an array of size 8.
  * tx_fifo_num: This defines the number of Tx FIFOs thats used int the driver.
  * tx_fifo_len: This too is an array of 8. Each element defines the number of
 #include "s2io.h"
 #include "s2io-regs.h"
 
+#define DRV_VERSION "Version 2.0.9.1"
+
 /* S2io Driver name & version. */
 static char s2io_driver_name[] = "Neterion";
-static char s2io_driver_version[] = "Version 2.0.3.1";
+static char s2io_driver_version[] = DRV_VERSION;
 
 static inline int RXD_IS_UP2DT(RxD_t *rxdp)
 {
@@ -307,6 +309,8 @@ static unsigned int indicate_max_pkts;
 #endif
 /* Frequency of Rx desc syncs expressed as power of 2 */
 static unsigned int rxsync_frequency = 3;
+/* Interrupt type. Values can be 0(INTA), 1(MSI), 2(MSI_X) */
+static unsigned int intr_type = 0;
 
 /*
  * S2IO device table.
@@ -354,7 +358,7 @@ static int init_shared_mem(struct s2io_nic *nic)
        int lst_size, lst_per_page;
        struct net_device *dev = nic->dev;
 #ifdef CONFIG_2BUFF_MODE
-       u64 tmp;
+       unsigned long tmp;
        buffAdd_t *ba;
 #endif
 
@@ -404,7 +408,7 @@ static int init_shared_mem(struct s2io_nic *nic)
                    config->tx_cfg[i].fifo_len - 1;
                mac_control->fifos[i].fifo_no = i;
                mac_control->fifos[i].nic = nic;
-               mac_control->fifos[i].max_txds = MAX_SKB_FRAGS;
+               mac_control->fifos[i].max_txds = MAX_SKB_FRAGS + 1;
 
                for (j = 0; j < page_num; j++) {
                        int k = 0;
@@ -418,6 +422,26 @@ static int init_shared_mem(struct s2io_nic *nic)
                                DBG_PRINT(ERR_DBG, "failed for TxDL\n");
                                return -ENOMEM;
                        }
+                       /* If we got a zero DMA address(can happen on
+                        * certain platforms like PPC), reallocate.
+                        * Store virtual address of page we don't want,
+                        * to be freed later.
+                        */
+                       if (!tmp_p) {
+                               mac_control->zerodma_virt_addr = tmp_v;
+                               DBG_PRINT(INIT_DBG, 
+                               "%s: Zero DMA address for TxDL. ", dev->name);
+                               DBG_PRINT(INIT_DBG, 
+                               "Virtual address %p\n", tmp_v);
+                               tmp_v = pci_alloc_consistent(nic->pdev,
+                                                    PAGE_SIZE, &tmp_p);
+                               if (!tmp_v) {
+                                       DBG_PRINT(ERR_DBG,
+                                         "pci_alloc_consistent ");
+                                       DBG_PRINT(ERR_DBG, "failed for TxDL\n");
+                                       return -ENOMEM;
+                               }
+                       }
                        while (k < lst_per_page) {
                                int l = (j * lst_per_page) + k;
                                if (l == config->tx_cfg[i].fifo_len)
@@ -542,18 +566,18 @@ static int init_shared_mem(struct s2io_nic *nic)
                                    (BUF0_LEN + ALIGN_SIZE, GFP_KERNEL);
                                if (!ba->ba_0_org)
                                        return -ENOMEM;
-                               tmp = (u64) ba->ba_0_org;
+                               tmp = (unsigned long) ba->ba_0_org;
                                tmp += ALIGN_SIZE;
-                               tmp &= ~((u64) ALIGN_SIZE);
+                               tmp &= ~((unsigned long) ALIGN_SIZE);
                                ba->ba_0 = (void *) tmp;
 
                                ba->ba_1_org = (void *) kmalloc
                                    (BUF1_LEN + ALIGN_SIZE, GFP_KERNEL);
                                if (!ba->ba_1_org)
                                        return -ENOMEM;
-                               tmp = (u64) ba->ba_1_org;
+                               tmp = (unsigned long) ba->ba_1_org;
                                tmp += ALIGN_SIZE;
-                               tmp &= ~((u64) ALIGN_SIZE);
+                               tmp &= ~((unsigned long) ALIGN_SIZE);
                                ba->ba_1 = (void *) tmp;
                                k++;
                        }
@@ -600,7 +624,7 @@ static void free_shared_mem(struct s2io_nic *nic)
        mac_info_t *mac_control;
        struct config_param *config;
        int lst_size, lst_per_page;
-
+       struct net_device *dev = nic->dev;
 
        if (!nic)
                return;
@@ -616,9 +640,10 @@ static void free_shared_mem(struct s2io_nic *nic)
                                                lst_per_page);
                for (j = 0; j < page_num; j++) {
                        int mem_blks = (j * lst_per_page);
-                       if ((!mac_control->fifos[i].list_info) ||
-                               (!mac_control->fifos[i].list_info[mem_blks].
-                                list_virt_addr))
+                       if (!mac_control->fifos[i].list_info)
+                               return; 
+                       if (!mac_control->fifos[i].list_info[mem_blks].
+                                list_virt_addr)
                                break;
                        pci_free_consistent(nic->pdev, PAGE_SIZE,
                                            mac_control->fifos[i].
@@ -628,6 +653,19 @@ static void free_shared_mem(struct s2io_nic *nic)
                                            list_info[mem_blks].
                                            list_phy_addr);
                }
+               /* If we got a zero DMA address during allocation,
+                * free the page now
+                */
+               if (mac_control->zerodma_virt_addr) {
+                       pci_free_consistent(nic->pdev, PAGE_SIZE,
+                                           mac_control->zerodma_virt_addr,
+                                           (dma_addr_t)0);
+                       DBG_PRINT(INIT_DBG, 
+                               "%s: Freeing TxDL with zero DMA addr. ",
+                               dev->name);
+                       DBG_PRINT(INIT_DBG, "Virtual address %p\n",
+                               mac_control->zerodma_virt_addr);
+               }
                kfree(mac_control->fifos[i].list_info);
        }
 
@@ -686,7 +724,7 @@ static void free_shared_mem(struct s2io_nic *nic)
 
 static int s2io_verify_pci_mode(nic_t *nic)
 {
-       XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+       XENA_dev_config_t __iomem *bar0 = nic->bar0;
        register u64 val64 = 0;
        int     mode;
 
@@ -704,7 +742,7 @@ static int s2io_verify_pci_mode(nic_t *nic)
  */
 static int s2io_print_pci_mode(nic_t *nic)
 {
-       XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+       XENA_dev_config_t __iomem *bar0 = nic->bar0;
        register u64 val64 = 0;
        int     mode;
        struct config_param *config = &nic->config;
@@ -1362,8 +1400,13 @@ static int init_nic(struct s2io_nic *nic)
                writeq(val64, &bar0->rti_data1_mem);
 
                val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) |
-                   RTI_DATA2_MEM_RX_UFC_B(0x2) |
-                   RTI_DATA2_MEM_RX_UFC_C(0x40) | RTI_DATA2_MEM_RX_UFC_D(0x80);
+                   RTI_DATA2_MEM_RX_UFC_B(0x2) ;
+               if (nic->intr_type == MSI_X)
+                   val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x20) | \
+                               RTI_DATA2_MEM_RX_UFC_D(0x40));
+               else
+                   val64 |= (RTI_DATA2_MEM_RX_UFC_C(0x40) | \
+                               RTI_DATA2_MEM_RX_UFC_D(0x80));
                writeq(val64, &bar0->rti_data2_mem);
 
                for (i = 0; i < config->rx_ring_num; i++) {
@@ -1403,7 +1446,7 @@ static int init_nic(struct s2io_nic *nic)
        writeq(0xffbbffbbffbbffbbULL, &bar0->mc_pause_thresh_q4q7);
 
        /* Disable RMAC PAD STRIPPING */
-       add = (void *) &bar0->mac_cfg;
+       add = &bar0->mac_cfg;
        val64 = readq(&bar0->mac_cfg);
        val64 &= ~(MAC_CFG_RMAC_STRIP_PAD);
        writeq(RMAC_CFG_KEY(0x4C0D), &bar0->rmac_cfg_key);
@@ -1473,17 +1516,15 @@ static int init_nic(struct s2io_nic *nic)
 #define LINK_UP_DOWN_INTERRUPT         1
 #define MAC_RMAC_ERR_TIMER             2
 
-#if defined(CONFIG_MSI_MODE) || defined(CONFIG_MSIX_MODE)
-#define s2io_link_fault_indication(x) MAC_RMAC_ERR_TIMER
-#else
 int s2io_link_fault_indication(nic_t *nic)
 {
+       if (nic->intr_type != INTA)
+               return MAC_RMAC_ERR_TIMER;
        if (nic->device_type == XFRAME_II_DEVICE)
                return LINK_UP_DOWN_INTERRUPT;
        else
                return MAC_RMAC_ERR_TIMER;
 }
-#endif
 
 /**
  *  en_dis_able_nic_intrs - Enable or Disable the interrupts
@@ -1907,11 +1948,14 @@ static int start_nic(struct s2io_nic *nic)
        }
 
        /*  Enable select interrupts */
-       interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
-       interruptible |= TX_PIC_INTR | RX_PIC_INTR;
-       interruptible |= TX_MAC_INTR | RX_MAC_INTR;
-
-       en_dis_able_nic_intrs(nic, interruptible, ENABLE_INTRS);
+       if (nic->intr_type != INTA)
+               en_dis_able_nic_intrs(nic, ENA_ALL_INTRS, DISABLE_INTRS);
+       else {
+               interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR;
+               interruptible |= TX_PIC_INTR | RX_PIC_INTR;
+               interruptible |= TX_MAC_INTR | RX_MAC_INTR;
+               en_dis_able_nic_intrs(nic, interruptible, ENABLE_INTRS);
+       }
 
        /*
         * With some switches, link might be already up at this point.
@@ -1934,7 +1978,7 @@ static int start_nic(struct s2io_nic *nic)
                val64 |= 0x0000800000000000ULL;
                writeq(val64, &bar0->gpio_control);
                val64 = 0x0411040400000000ULL;
-               writeq(val64, (void __iomem *) ((u8 *) bar0 + 0x2700));
+               writeq(val64, (void __iomem *)bar0 + 0x2700);
        }
 
        /*
@@ -2395,7 +2439,7 @@ static int s2io_poll(struct net_device *dev, int *budget)
        int pkt_cnt = 0, org_pkts_to_process;
        mac_info_t *mac_control;
        struct config_param *config;
-       XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+       XENA_dev_config_t __iomem *bar0 = nic->bar0;
        u64 val64;
        int i;
 
@@ -2479,9 +2523,10 @@ static void rx_intr_handler(ring_info_t *ring_data)
 #endif
        spin_lock(&nic->rx_lock);
        if (atomic_read(&nic->card_state) == CARD_DOWN) {
-               DBG_PRINT(ERR_DBG, "%s: %s going down for reset\n",
+               DBG_PRINT(INTR_DBG, "%s: %s going down for reset\n",
                          __FUNCTION__, dev->name);
                spin_unlock(&nic->rx_lock);
+               return;
        }
 
        get_info = ring_data->rx_curr_get_info;
@@ -2596,8 +2641,14 @@ static void tx_intr_handler(fifo_info_t *fifo_data)
                if (txdlp->Control_1 & TXD_T_CODE) {
                        unsigned long long err;
                        err = txdlp->Control_1 & TXD_T_CODE;
-                       DBG_PRINT(ERR_DBG, "***TxD error %llx\n",
-                                 err);
+                       if ((err >> 48) == 0xA) {
+                               DBG_PRINT(TX_DBG, "TxD returned due \
+to loss of link\n");
+                       }
+                       else {
+                               DBG_PRINT(ERR_DBG, "***TxD error \
+%llx\n", err);
+                       }
                }
 
                skb = (struct sk_buff *) ((unsigned long)
@@ -2689,12 +2740,16 @@ static void alarm_intr_handler(struct s2io_nic *nic)
                if (val64 & MC_ERR_REG_ECC_ALL_DBL) {
                        nic->mac_control.stats_info->sw_stat.
                                double_ecc_errs++;
-                       DBG_PRINT(ERR_DBG, "%s: Device indicates ",
+                       DBG_PRINT(INIT_DBG, "%s: Device indicates ",
                                  dev->name);
-                       DBG_PRINT(ERR_DBG, "double ECC error!!\n");
+                       DBG_PRINT(INIT_DBG, "double ECC error!!\n");
                        if (nic->device_type != XFRAME_II_DEVICE) {
-                               netif_stop_queue(dev);
-                               schedule_work(&nic->rst_timer_task);
+                               /* Reset XframeI only if critical error */
+                               if (val64 & (MC_ERR_REG_MIRI_ECC_DB_ERR_0 |
+                                            MC_ERR_REG_MIRI_ECC_DB_ERR_1)) {
+                                       netif_stop_queue(dev);
+                                       schedule_work(&nic->rst_timer_task);
+                               }
                        }
                } else {
                        nic->mac_control.stats_info->sw_stat.
@@ -2706,7 +2761,8 @@ static void alarm_intr_handler(struct s2io_nic *nic)
        val64 = readq(&bar0->serr_source);
        if (val64 & SERR_SOURCE_ANY) {
                DBG_PRINT(ERR_DBG, "%s: Device indicates ", dev->name);
-               DBG_PRINT(ERR_DBG, "serious error!!\n");
+               DBG_PRINT(ERR_DBG, "serious error %llx!!\n", 
+                         (unsigned long long)val64);
                netif_stop_queue(dev);
                schedule_work(&nic->rst_timer_task);
        }
@@ -2808,6 +2864,9 @@ void s2io_reset(nic_t * sp)
        /* Set swapper to enable I/O register access */
        s2io_set_swapper(sp);
 
+       /* Restore the MSIX table entries from local variables */
+       restore_xmsi_data(sp);
+
        /* Clear certain PCI/PCI-X fields after reset */
        if (sp->device_type == XFRAME_II_DEVICE) {
                /* Clear parity err detect bit */
@@ -2831,7 +2890,7 @@ void s2io_reset(nic_t * sp)
                val64 |= 0x0000800000000000ULL;
                writeq(val64, &bar0->gpio_control);
                val64 = 0x0411040400000000ULL;
-               writeq(val64, (void __iomem *) ((u8 *) bar0 + 0x2700));
+               writeq(val64, (void __iomem *)bar0 + 0x2700);
        }
 
        /*
@@ -2937,8 +2996,9 @@ int s2io_set_swapper(nic_t * sp)
                 SWAPPER_CTRL_RXD_W_FE |
                 SWAPPER_CTRL_RXF_W_FE |
                 SWAPPER_CTRL_XMSI_FE |
-                SWAPPER_CTRL_XMSI_SE |
                 SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE);
+       if (sp->intr_type == INTA)
+               val64 |= SWAPPER_CTRL_XMSI_SE;
        writeq(val64, &bar0->swapper_ctrl);
 #else
        /*
@@ -2959,8 +3019,9 @@ int s2io_set_swapper(nic_t * sp)
                 SWAPPER_CTRL_RXD_W_SE |
                 SWAPPER_CTRL_RXF_W_FE |
                 SWAPPER_CTRL_XMSI_FE |
-                SWAPPER_CTRL_XMSI_SE |
                 SWAPPER_CTRL_STATS_FE | SWAPPER_CTRL_STATS_SE);
+       if (sp->intr_type == INTA)
+               val64 |= SWAPPER_CTRL_XMSI_SE;
        writeq(val64, &bar0->swapper_ctrl);
 #endif
        val64 = readq(&bar0->swapper_ctrl);
@@ -2982,6 +3043,201 @@ int s2io_set_swapper(nic_t * sp)
        return SUCCESS;
 }
 
+int wait_for_msix_trans(nic_t *nic, int i)
+{
+       XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+       u64 val64;
+       int ret = 0, cnt = 0;
+
+       do {
+               val64 = readq(&bar0->xmsi_access);
+               if (!(val64 & BIT(15)))
+                       break;
+               mdelay(1);
+               cnt++;
+       } while(cnt < 5);
+       if (cnt == 5) {
+               DBG_PRINT(ERR_DBG, "XMSI # %d Access failed\n", i);
+               ret = 1;
+       }
+
+       return ret;
+}
+
+void restore_xmsi_data(nic_t *nic)
+{
+       XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+       u64 val64;
+       int i;
+
+       for (i=0; i< MAX_REQUESTED_MSI_X; i++) {
+               writeq(nic->msix_info[i].addr, &bar0->xmsi_address);
+               writeq(nic->msix_info[i].data, &bar0->xmsi_data);
+               val64 = (BIT(7) | BIT(15) | vBIT(i, 26, 6));
+               writeq(val64, &bar0->xmsi_access);
+               if (wait_for_msix_trans(nic, i)) {
+                       DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__);
+                       continue;
+               }
+       }
+}
+
+void store_xmsi_data(nic_t *nic)
+{
+       XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+       u64 val64, addr, data;
+       int i;
+
+       /* Store and display */
+       for (i=0; i< MAX_REQUESTED_MSI_X; i++) {
+               val64 = (BIT(15) | vBIT(i, 26, 6));
+               writeq(val64, &bar0->xmsi_access);
+               if (wait_for_msix_trans(nic, i)) {
+                       DBG_PRINT(ERR_DBG, "failed in %s\n", __FUNCTION__);
+                       continue;
+               }
+               addr = readq(&bar0->xmsi_address);
+               data = readq(&bar0->xmsi_data);
+               if (addr && data) {
+                       nic->msix_info[i].addr = addr;
+                       nic->msix_info[i].data = data;
+               }
+       }
+}
+
+int s2io_enable_msi(nic_t *nic)
+{
+       XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+       u16 msi_ctrl, msg_val;
+       struct config_param *config = &nic->config;
+       struct net_device *dev = nic->dev;
+       u64 val64, tx_mat, rx_mat;
+       int i, err;
+
+       val64 = readq(&bar0->pic_control);
+       val64 &= ~BIT(1);
+       writeq(val64, &bar0->pic_control);
+
+       err = pci_enable_msi(nic->pdev);
+       if (err) {
+               DBG_PRINT(ERR_DBG, "%s: enabling MSI failed\n",
+                         nic->dev->name);
+               return err;
+       }
+
+       /*
+        * Enable MSI and use MSI-1 in stead of the standard MSI-0
+        * for interrupt handling.
+        */
+       pci_read_config_word(nic->pdev, 0x4c, &msg_val);
+       msg_val ^= 0x1;
+       pci_write_config_word(nic->pdev, 0x4c, msg_val);
+       pci_read_config_word(nic->pdev, 0x4c, &msg_val);
+
+       pci_read_config_word(nic->pdev, 0x42, &msi_ctrl);
+       msi_ctrl |= 0x10;
+       pci_write_config_word(nic->pdev, 0x42, msi_ctrl);
+
+       /* program MSI-1 into all usable Tx_Mat and Rx_Mat fields */
+       tx_mat = readq(&bar0->tx_mat0_n[0]);
+       for (i=0; i<config->tx_fifo_num; i++) {
+               tx_mat |= TX_MAT_SET(i, 1);
+       }
+       writeq(tx_mat, &bar0->tx_mat0_n[0]);
+
+       rx_mat = readq(&bar0->rx_mat);
+       for (i=0; i<config->rx_ring_num; i++) {
+               rx_mat |= RX_MAT_SET(i, 1);
+       }
+       writeq(rx_mat, &bar0->rx_mat);
+
+       dev->irq = nic->pdev->irq;
+       return 0;
+}
+
+int s2io_enable_msi_x(nic_t *nic)
+{
+       XENA_dev_config_t *bar0 = (XENA_dev_config_t *) nic->bar0;
+       u64 tx_mat, rx_mat;
+       u16 msi_control; /* Temp variable */
+       int ret, i, j, msix_indx = 1;
+
+       nic->entries = kmalloc(MAX_REQUESTED_MSI_X * sizeof(struct msix_entry),
+                              GFP_KERNEL);
+       if (nic->entries == NULL) {
+               DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", __FUNCTION__);
+               return -ENOMEM;
+       }
+       memset(nic->entries, 0, MAX_REQUESTED_MSI_X * sizeof(struct msix_entry));
+
+       nic->s2io_entries =
+               kmalloc(MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry),
+                                  GFP_KERNEL);
+       if (nic->s2io_entries == NULL) {
+               DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n", __FUNCTION__);
+               kfree(nic->entries);
+               return -ENOMEM;
+       }
+       memset(nic->s2io_entries, 0,
+              MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry));
+
+       for (i=0; i< MAX_REQUESTED_MSI_X; i++) {
+               nic->entries[i].entry = i;
+               nic->s2io_entries[i].entry = i;
+               nic->s2io_entries[i].arg = NULL;
+               nic->s2io_entries[i].in_use = 0;
+       }
+
+       tx_mat = readq(&bar0->tx_mat0_n[0]);
+       for (i=0; i<nic->config.tx_fifo_num; i++, msix_indx++) {
+               tx_mat |= TX_MAT_SET(i, msix_indx);
+               nic->s2io_entries[msix_indx].arg = &nic->mac_control.fifos[i];
+               nic->s2io_entries[msix_indx].type = MSIX_FIFO_TYPE;
+               nic->s2io_entries[msix_indx].in_use = MSIX_FLG;
+       }
+       writeq(tx_mat, &bar0->tx_mat0_n[0]);
+
+       if (!nic->config.bimodal) {
+               rx_mat = readq(&bar0->rx_mat);
+               for (j=0; j<nic->config.rx_ring_num; j++, msix_indx++) {
+                       rx_mat |= RX_MAT_SET(j, msix_indx);
+                       nic->s2io_entries[msix_indx].arg = &nic->mac_control.rings[j];
+                       nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE;
+                       nic->s2io_entries[msix_indx].in_use = MSIX_FLG;
+               }
+               writeq(rx_mat, &bar0->rx_mat);
+       } else {
+               tx_mat = readq(&bar0->tx_mat0_n[7]);
+               for (j=0; j<nic->config.rx_ring_num; j++, msix_indx++) {
+                       tx_mat |= TX_MAT_SET(i, msix_indx);
+                       nic->s2io_entries[msix_indx].arg = &nic->mac_control.rings[j];
+                       nic->s2io_entries[msix_indx].type = MSIX_RING_TYPE;
+                       nic->s2io_entries[msix_indx].in_use = MSIX_FLG;
+               }
+               writeq(tx_mat, &bar0->tx_mat0_n[7]);
+       }
+
+       ret = pci_enable_msix(nic->pdev, nic->entries, MAX_REQUESTED_MSI_X);
+       if (ret) {
+               DBG_PRINT(ERR_DBG, "%s: Enabling MSIX failed\n", nic->dev->name);
+               kfree(nic->entries);
+               kfree(nic->s2io_entries);
+               nic->entries = NULL;
+               nic->s2io_entries = NULL;
+               return -ENOMEM;
+       }
+
+       /*
+        * To enable MSI-X, MSI also needs to be enabled, due to a bug
+        * in the herc NIC. (Temp change, needs to be removed later)
+        */
+       pci_read_config_word(nic->pdev, 0x42, &msi_control);
+       msi_control |= 0x1; /* Enable MSI */
+       pci_write_config_word(nic->pdev, 0x42, msi_control);
+
+       return 0;
+}
+
 /* ********************************************************* *
  * Functions defined below concern the OS part of the driver *
  * ********************************************************* */
@@ -3002,6 +3258,8 @@ int s2io_open(struct net_device *dev)
 {
        nic_t *sp = dev->priv;
        int err = 0;
+       int i;
+       u16 msi_control; /* Temp variable */
 
        /*
         * Make sure you have link off by default every time
@@ -3018,13 +3276,55 @@ int s2io_open(struct net_device *dev)
                goto hw_init_failed;
        }
 
+       /* Store the values of the MSIX table in the nic_t structure */
+       store_xmsi_data(sp);
+
        /* After proper initialization of H/W, register ISR */
-       err = request_irq((int) sp->pdev->irq, s2io_isr, SA_SHIRQ,
-                         sp->name, dev);
-       if (err) {
-               DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n",
-                         dev->name);
-               goto isr_registration_failed;
+       if (sp->intr_type == MSI) {
+               err = request_irq((int) sp->pdev->irq, s2io_msi_handle, 
+                       SA_SHIRQ, sp->name, dev);
+               if (err) {
+                       DBG_PRINT(ERR_DBG, "%s: MSI registration \
+failed\n", dev->name);
+                       goto isr_registration_failed;
+               }
+       }
+       if (sp->intr_type == MSI_X) {
+               for (i=1; (sp->s2io_entries[i].in_use == MSIX_FLG); i++) {
+                       if (sp->s2io_entries[i].type == MSIX_FIFO_TYPE) {
+                               sprintf(sp->desc1, "%s:MSI-X-%d-TX",
+                                       dev->name, i);
+                               err = request_irq(sp->entries[i].vector,
+                                         s2io_msix_fifo_handle, 0, sp->desc1,
+                                         sp->s2io_entries[i].arg);
+                               DBG_PRINT(ERR_DBG, "%s @ 0x%llx\n", sp->desc1, 
+                                                       sp->msix_info[i].addr);
+                       } else {
+                               sprintf(sp->desc2, "%s:MSI-X-%d-RX",
+                                       dev->name, i);
+                               err = request_irq(sp->entries[i].vector,
+                                         s2io_msix_ring_handle, 0, sp->desc2,
+                                         sp->s2io_entries[i].arg);
+                               DBG_PRINT(ERR_DBG, "%s @ 0x%llx\n", sp->desc2, 
+                                                       sp->msix_info[i].addr);
+                       }
+                       if (err) {
+                               DBG_PRINT(ERR_DBG, "%s: MSI-X-%d registration \
+failed\n", dev->name, i);
+                               DBG_PRINT(ERR_DBG, "Returned: %d\n", err);
+                               goto isr_registration_failed;
+                       }
+                       sp->s2io_entries[i].in_use = MSIX_REGISTERED_SUCCESS;
+               }
+       }
+       if (sp->intr_type == INTA) {
+               err = request_irq((int) sp->pdev->irq, s2io_isr, SA_SHIRQ,
+                               sp->name, dev);
+               if (err) {
+                       DBG_PRINT(ERR_DBG, "%s: ISR registration failed\n",
+                                 dev->name);
+                       goto isr_registration_failed;
+               }
        }
 
        if (s2io_set_mac_addr(dev, dev->dev_addr) == FAILURE) {
@@ -3037,11 +3337,37 @@ int s2io_open(struct net_device *dev)
        return 0;
 
 setting_mac_address_failed:
-       free_irq(sp->pdev->irq, dev);
+       if (sp->intr_type != MSI_X)
+               free_irq(sp->pdev->irq, dev);
 isr_registration_failed:
        del_timer_sync(&sp->alarm_timer);
+       if (sp->intr_type == MSI_X) {
+               if (sp->device_type == XFRAME_II_DEVICE) {
+                       for (i=1; (sp->s2io_entries[i].in_use == 
+                               MSIX_REGISTERED_SUCCESS); i++) {
+                               int vector = sp->entries[i].vector;
+                               void *arg = sp->s2io_entries[i].arg;
+
+                               free_irq(vector, arg);
+                       }
+                       pci_disable_msix(sp->pdev);
+
+                       /* Temp */
+                       pci_read_config_word(sp->pdev, 0x42, &msi_control);
+                       msi_control &= 0xFFFE; /* Disable MSI */
+                       pci_write_config_word(sp->pdev, 0x42, msi_control);
+               }
+       }
+       else if (sp->intr_type == MSI)
+               pci_disable_msi(sp->pdev);
        s2io_reset(sp);
 hw_init_failed:
+       if (sp->intr_type == MSI_X) {
+               if (sp->entries)
+                       kfree(sp->entries);
+               if (sp->s2io_entries)
+                       kfree(sp->s2io_entries);
+       }
        return err;
 }
 
@@ -3061,12 +3387,35 @@ hw_init_failed:
 int s2io_close(struct net_device *dev)
 {
        nic_t *sp = dev->priv;
+       int i;
+       u16 msi_control;
+
        flush_scheduled_work();
        netif_stop_queue(dev);
        /* Reset card, kill tasklet and free Tx and Rx buffers. */
        s2io_card_down(sp);
 
-       free_irq(sp->pdev->irq, dev);
+       if (sp->intr_type == MSI_X) {
+               if (sp->device_type == XFRAME_II_DEVICE) {
+                       for (i=1; (sp->s2io_entries[i].in_use == 
+                                       MSIX_REGISTERED_SUCCESS); i++) {
+                               int vector = sp->entries[i].vector;
+                               void *arg = sp->s2io_entries[i].arg;
+
+                               free_irq(vector, arg);
+                       }
+                       pci_read_config_word(sp->pdev, 0x42, &msi_control);
+                       msi_control &= 0xFFFE; /* Disable MSI */
+                       pci_write_config_word(sp->pdev, 0x42, msi_control);
+
+                       pci_disable_msix(sp->pdev);
+               }
+       }
+       else {
+               free_irq(sp->pdev->irq, dev);
+               if (sp->intr_type == MSI)
+                       pci_disable_msi(sp->pdev);
+       }       
        sp->device_close_flag = TRUE;   /* Device is shut down. */
        return 0;
 }
@@ -3130,7 +3479,7 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
        queue_len = mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1;
        /* Avoid "put" pointer going beyond "get" pointer */
        if (txdp->Host_Control || (((put_off + 1) % queue_len) == get_off)) {
-               DBG_PRINT(ERR_DBG, "Error in xmit, No free TXDs.\n");
+               DBG_PRINT(TX_DBG, "Error in xmit, No free TXDs.\n");
                netif_stop_queue(dev);
                dev_kfree_skb(skb);
                spin_unlock_irqrestore(&sp->tx_lock, flags);
@@ -3232,9 +3581,107 @@ s2io_alarm_handle(unsigned long data)
        mod_timer(&sp->alarm_timer, jiffies + HZ / 2);
 }
 
+static irqreturn_t
+s2io_msi_handle(int irq, void *dev_id, struct pt_regs *regs)
+{
+       struct net_device *dev = (struct net_device *) dev_id;
+       nic_t *sp = dev->priv;
+       int i;
+       int ret;
+       mac_info_t *mac_control;
+       struct config_param *config;
+
+       atomic_inc(&sp->isr_cnt);
+       mac_control = &sp->mac_control;
+       config = &sp->config;
+       DBG_PRINT(INTR_DBG, "%s: MSI handler\n", __FUNCTION__);
+
+       /* If Intr is because of Rx Traffic */
+       for (i = 0; i < config->rx_ring_num; i++)
+               rx_intr_handler(&mac_control->rings[i]);
+
+       /* If Intr is because of Tx Traffic */
+       for (i = 0; i < config->tx_fifo_num; i++)
+               tx_intr_handler(&mac_control->fifos[i]);
+
+       /*
+        * If the Rx buffer count is below the panic threshold then
+        * reallocate the buffers from the interrupt handler itself,
+        * else schedule a tasklet to reallocate the buffers.
+        */
+       for (i = 0; i < config->rx_ring_num; i++) {
+               int rxb_size = atomic_read(&sp->rx_bufs_left[i]);
+               int level = rx_buffer_level(sp, rxb_size, i);
+
+               if ((level == PANIC) && (!TASKLET_IN_USE)) {
+                       DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", dev->name);
+                       DBG_PRINT(INTR_DBG, "PANIC levels\n");
+                       if ((ret = fill_rx_buffers(sp, i)) == -ENOMEM) {
+                               DBG_PRINT(ERR_DBG, "%s:Out of memory",
+                                         dev->name);
+                               DBG_PRINT(ERR_DBG, " in ISR!!\n");
+                               clear_bit(0, (&sp->tasklet_status));
+                               atomic_dec(&sp->isr_cnt);
+                               return IRQ_HANDLED;
+                       }
+                       clear_bit(0, (&sp->tasklet_status));
+               } else if (level == LOW) {
+                       tasklet_schedule(&sp->task);
+               }
+       }
+
+       atomic_dec(&sp->isr_cnt);
+       return IRQ_HANDLED;
+}
+
+static irqreturn_t
+s2io_msix_ring_handle(int irq, void *dev_id, struct pt_regs *regs)
+{
+       ring_info_t *ring = (ring_info_t *)dev_id;
+       nic_t *sp = ring->nic;
+       int rxb_size, level, rng_n;
+
+       atomic_inc(&sp->isr_cnt);
+       rx_intr_handler(ring);
+
+       rng_n = ring->ring_no;
+       rxb_size = atomic_read(&sp->rx_bufs_left[rng_n]);
+       level = rx_buffer_level(sp, rxb_size, rng_n);
+
+       if ((level == PANIC) && (!TASKLET_IN_USE)) {
+               int ret;
+               DBG_PRINT(INTR_DBG, "%s: Rx BD hit ", __FUNCTION__);
+               DBG_PRINT(INTR_DBG, "PANIC levels\n");
+               if ((ret = fill_rx_buffers(sp, rng_n)) == -ENOMEM) {
+                       DBG_PRINT(ERR_DBG, "Out of memory in %s",
+                                 __FUNCTION__);
+                       clear_bit(0, (&sp->tasklet_status));
+                       return IRQ_HANDLED;
+               }
+               clear_bit(0, (&sp->tasklet_status));
+       } else if (level == LOW) {
+               tasklet_schedule(&sp->task);
+       }
+       atomic_dec(&sp->isr_cnt);
+
+       return IRQ_HANDLED;
+}
+
+static irqreturn_t
+s2io_msix_fifo_handle(int irq, void *dev_id, struct pt_regs *regs)
+{
+       fifo_info_t *fifo = (fifo_info_t *)dev_id;
+       nic_t *sp = fifo->nic;
+
+       atomic_inc(&sp->isr_cnt);
+       tx_intr_handler(fifo);
+       atomic_dec(&sp->isr_cnt);
+       return IRQ_HANDLED;
+}
+
 static void s2io_txpic_intr_handle(nic_t *sp)
 {
-       XENA_dev_config_t *bar0 = (XENA_dev_config_t *) sp->bar0;
+       XENA_dev_config_t __iomem *bar0 = sp->bar0;
        u64 val64;
 
        val64 = readq(&bar0->pic_int_status);
@@ -3528,7 +3975,7 @@ static void s2io_set_multicast(struct net_device *dev)
 
                val64 = readq(&bar0->mac_cfg);
                sp->promisc_flg = 1;
-               DBG_PRINT(ERR_DBG, "%s: entered promiscuous mode\n",
+               DBG_PRINT(INFO_DBG, "%s: entered promiscuous mode\n",
                          dev->name);
        } else if (!(dev->flags & IFF_PROMISC) && (sp->promisc_flg)) {
                /*  Remove the NIC from promiscuous mode */
@@ -3543,7 +3990,7 @@ static void s2io_set_multicast(struct net_device *dev)
 
                val64 = readq(&bar0->mac_cfg);
                sp->promisc_flg = 0;
-               DBG_PRINT(ERR_DBG, "%s: left promiscuous mode\n",
+               DBG_PRINT(INFO_DBG, "%s: left promiscuous mode\n",
                          dev->name);
        }
 
@@ -3732,11 +4179,10 @@ static void s2io_ethtool_gdrvinfo(struct net_device *dev,
 {
        nic_t *sp = dev->priv;
 
-       strncpy(info->driver, s2io_driver_name, sizeof(s2io_driver_name));
-       strncpy(info->version, s2io_driver_version,
-               sizeof(s2io_driver_version));
-       strncpy(info->fw_version, "", 32);
-       strncpy(info->bus_info, pci_name(sp->pdev), 32);
+       strncpy(info->driver, s2io_driver_name, sizeof(info->driver));
+       strncpy(info->version, s2io_driver_version, sizeof(info->version));
+       strncpy(info->fw_version, "", sizeof(info->fw_version));
+       strncpy(info->bus_info, pci_name(sp->pdev), sizeof(info->bus_info));
        info->regdump_len = XENA_REG_SPACE;
        info->eedump_len = XENA_EEPROM_SPACE;
        info->testinfo_len = S2IO_TEST_LEN;
@@ -3932,29 +4378,53 @@ static int s2io_ethtool_setpause_data(struct net_device *dev,
  */
 
 #define S2IO_DEV_ID            5
-static int read_eeprom(nic_t * sp, int off, u32 * data)
+static int read_eeprom(nic_t * sp, int off, u64 * data)
 {
        int ret = -1;
        u32 exit_cnt = 0;
        u64 val64;
        XENA_dev_config_t __iomem *bar0 = sp->bar0;
 
-       val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) |
-           I2C_CONTROL_BYTE_CNT(0x3) | I2C_CONTROL_READ |
-           I2C_CONTROL_CNTL_START;
-       SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
+       if (sp->device_type == XFRAME_I_DEVICE) {
+               val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) |
+                   I2C_CONTROL_BYTE_CNT(0x3) | I2C_CONTROL_READ |
+                   I2C_CONTROL_CNTL_START;
+               SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
 
-       while (exit_cnt < 5) {
-               val64 = readq(&bar0->i2c_control);
-               if (I2C_CONTROL_CNTL_END(val64)) {
-                       *data = I2C_CONTROL_GET_DATA(val64);
-                       ret = 0;
-                       break;
+               while (exit_cnt < 5) {
+                       val64 = readq(&bar0->i2c_control);
+                       if (I2C_CONTROL_CNTL_END(val64)) {
+                               *data = I2C_CONTROL_GET_DATA(val64);
+                               ret = 0;
+                               break;
+                       }
+                       msleep(50);
+                       exit_cnt++;
                }
-               msleep(50);
-               exit_cnt++;
        }
 
+       if (sp->device_type == XFRAME_II_DEVICE) {
+               val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
+                       SPI_CONTROL_BYTECNT(0x3) | 
+                       SPI_CONTROL_CMD(0x3) | SPI_CONTROL_ADDR(off);
+               SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
+               val64 |= SPI_CONTROL_REQ;
+               SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
+               while (exit_cnt < 5) {
+                       val64 = readq(&bar0->spi_control);
+                       if (val64 & SPI_CONTROL_NACK) {
+                               ret = 1;
+                               break;
+                       } else if (val64 & SPI_CONTROL_DONE) {
+                               *data = readq(&bar0->spi_data);
+                               *data &= 0xffffff;
+                               ret = 0;
+                               break;
+                       }
+                       msleep(50);
+                       exit_cnt++;
+               }
+       }
        return ret;
 }
 
@@ -3973,28 +4443,53 @@ static int read_eeprom(nic_t * sp, int off, u32 * data)
  *  0 on success, -1 on failure.
  */
 
-static int write_eeprom(nic_t * sp, int off, u32 data, int cnt)
+static int write_eeprom(nic_t * sp, int off, u64 data, int cnt)
 {
        int exit_cnt = 0, ret = -1;
        u64 val64;
        XENA_dev_config_t __iomem *bar0 = sp->bar0;
 
-       val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) |
-           I2C_CONTROL_BYTE_CNT(cnt) | I2C_CONTROL_SET_DATA(data) |
-           I2C_CONTROL_CNTL_START;
-       SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
+       if (sp->device_type == XFRAME_I_DEVICE) {
+               val64 = I2C_CONTROL_DEV_ID(S2IO_DEV_ID) | I2C_CONTROL_ADDR(off) |
+                   I2C_CONTROL_BYTE_CNT(cnt) | I2C_CONTROL_SET_DATA((u32)data) |
+                   I2C_CONTROL_CNTL_START;
+               SPECIAL_REG_WRITE(val64, &bar0->i2c_control, LF);
+
+               while (exit_cnt < 5) {
+                       val64 = readq(&bar0->i2c_control);
+                       if (I2C_CONTROL_CNTL_END(val64)) {
+                               if (!(val64 & I2C_CONTROL_NACK))
+                                       ret = 0;
+                               break;
+                       }
+                       msleep(50);
+                       exit_cnt++;
+               }
+       }
 
-       while (exit_cnt < 5) {
-               val64 = readq(&bar0->i2c_control);
-               if (I2C_CONTROL_CNTL_END(val64)) {
-                       if (!(val64 & I2C_CONTROL_NACK))
+       if (sp->device_type == XFRAME_II_DEVICE) {
+               int write_cnt = (cnt == 8) ? 0 : cnt;
+               writeq(SPI_DATA_WRITE(data,(cnt<<3)), &bar0->spi_data);
+
+               val64 = SPI_CONTROL_KEY(0x9) | SPI_CONTROL_SEL1 |
+                       SPI_CONTROL_BYTECNT(write_cnt) | 
+                       SPI_CONTROL_CMD(0x2) | SPI_CONTROL_ADDR(off);
+               SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
+               val64 |= SPI_CONTROL_REQ;
+               SPECIAL_REG_WRITE(val64, &bar0->spi_control, LF);
+               while (exit_cnt < 5) {
+                       val64 = readq(&bar0->spi_control);
+                       if (val64 & SPI_CONTROL_NACK) {
+                               ret = 1;
+                               break;
+                       } else if (val64 & SPI_CONTROL_DONE) {
                                ret = 0;
-                       break;
+                               break;
+                       }
+                       msleep(50);
+                       exit_cnt++;
                }
-               msleep(50);
-               exit_cnt++;
        }
-
        return ret;
 }
 
@@ -4014,7 +4509,8 @@ static int write_eeprom(nic_t * sp, int off, u32 data, int cnt)
 static int s2io_ethtool_geeprom(struct net_device *dev,
                         struct ethtool_eeprom *eeprom, u8 * data_buf)
 {
-       u32 data, i, valid;
+       u32 i, valid;
+       u64 data;
        nic_t *sp = dev->priv;
 
        eeprom->magic = sp->pdev->vendor | (sp->pdev->device << 16);
@@ -4052,7 +4548,7 @@ static int s2io_ethtool_seeprom(struct net_device *dev,
                                u8 * data_buf)
 {
        int len = eeprom->len, cnt = 0;
-       u32 valid = 0, data;
+       u64 valid = 0, data;
        nic_t *sp = dev->priv;
 
        if (eeprom->magic != (sp->pdev->vendor | (sp->pdev->device << 16))) {
@@ -4100,7 +4596,7 @@ static int s2io_ethtool_seeprom(struct net_device *dev,
 static int s2io_register_test(nic_t * sp, uint64_t * data)
 {
        XENA_dev_config_t __iomem *bar0 = sp->bar0;
-       u64 val64 = 0;
+       u64 val64 = 0, exp_val;
        int fail = 0;
 
        val64 = readq(&bar0->pif_rd_swapper_fb);
@@ -4116,7 +4612,11 @@ static int s2io_register_test(nic_t * sp, uint64_t * data)
        }
 
        val64 = readq(&bar0->rx_queue_cfg);
-       if (val64 != 0x0808080808080808ULL) {
+       if (sp->device_type == XFRAME_II_DEVICE)
+               exp_val = 0x0404040404040404ULL;
+       else
+               exp_val = 0x0808080808080808ULL;
+       if (val64 != exp_val) {
                fail = 1;
                DBG_PRINT(INFO_DBG, "Read Test level 3 fails\n");
        }
@@ -4144,7 +4644,7 @@ static int s2io_register_test(nic_t * sp, uint64_t * data)
        }
 
        *data = fail;
-       return 0;
+       return fail;
 }
 
 /**
@@ -4163,58 +4663,83 @@ static int s2io_register_test(nic_t * sp, uint64_t * data)
 static int s2io_eeprom_test(nic_t * sp, uint64_t * data)
 {
        int fail = 0;
-       u32 ret_data;
+       u64 ret_data, org_4F0, org_7F0;
+       u8 saved_4F0 = 0, saved_7F0 = 0;
+       struct net_device *dev = sp->dev;
 
        /* Test Write Error at offset 0 */
-       if (!write_eeprom(sp, 0, 0, 3))
-               fail = 1;
+       /* Note that SPI interface allows write access to all areas
+        * of EEPROM. Hence doing all negative testing only for Xframe I.
+        */
+       if (sp->device_type == XFRAME_I_DEVICE)
+               if (!write_eeprom(sp, 0, 0, 3))
+                       fail = 1;
+
+       /* Save current values at offsets 0x4F0 and 0x7F0 */
+       if (!read_eeprom(sp, 0x4F0, &org_4F0))
+               saved_4F0 = 1;
+       if (!read_eeprom(sp, 0x7F0, &org_7F0))
+               saved_7F0 = 1;
 
        /* Test Write at offset 4f0 */
-       if (write_eeprom(sp, 0x4F0, 0x01234567, 3))
+       if (write_eeprom(sp, 0x4F0, 0x012345, 3))
                fail = 1;
        if (read_eeprom(sp, 0x4F0, &ret_data))
                fail = 1;
 
-       if (ret_data != 0x01234567)
+       if (ret_data != 0x012345) {
+               DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x4F0. Data written %llx Data read %llx\n", dev->name, (u64)0x12345, ret_data); 
                fail = 1;
+       }
 
        /* Reset the EEPROM data go FFFF */
-       write_eeprom(sp, 0x4F0, 0xFFFFFFFF, 3);
+       write_eeprom(sp, 0x4F0, 0xFFFFFF, 3);
 
        /* Test Write Request Error at offset 0x7c */
-       if (!write_eeprom(sp, 0x07C, 0, 3))
-               fail = 1;
+       if (sp->device_type == XFRAME_I_DEVICE)
+               if (!write_eeprom(sp, 0x07C, 0, 3))
+                       fail = 1;
 
-       /* Test Write Request at offset 0x7fc */
-       if (write_eeprom(sp, 0x7FC, 0x01234567, 3))
+       /* Test Write Request at offset 0x7f0 */
+       if (write_eeprom(sp, 0x7F0, 0x012345, 3))
                fail = 1;
-       if (read_eeprom(sp, 0x7FC, &ret_data))
+       if (read_eeprom(sp, 0x7F0, &ret_data))
                fail = 1;
 
-       if (ret_data != 0x01234567)
+       if (ret_data != 0x012345) {
+               DBG_PRINT(ERR_DBG, "%s: eeprom test error at offset 0x7F0. Data written %llx Data read %llx\n", dev->name, (u64)0x12345, ret_data); 
                fail = 1;
+       }
 
        /* Reset the EEPROM data go FFFF */
-       write_eeprom(sp, 0x7FC, 0xFFFFFFFF, 3);
+       write_eeprom(sp, 0x7F0, 0xFFFFFF, 3);
 
-       /* Test Write Error at offset 0x80 */
-       if (!write_eeprom(sp, 0x080, 0, 3))
-               fail = 1;
+       if (sp->device_type == XFRAME_I_DEVICE) {
+               /* Test Write Error at offset 0x80 */
+               if (!write_eeprom(sp, 0x080, 0, 3))
+                       fail = 1;
 
-       /* Test Write Error at offset 0xfc */
-       if (!write_eeprom(sp, 0x0FC, 0, 3))
-               fail = 1;
+               /* Test Write Error at offset 0xfc */
+               if (!write_eeprom(sp, 0x0FC, 0, 3))
+                       fail = 1;
 
-       /* Test Write Error at offset 0x100 */
-       if (!write_eeprom(sp, 0x100, 0, 3))
-               fail = 1;
+               /* Test Write Error at offset 0x100 */
+               if (!write_eeprom(sp, 0x100, 0, 3))
+                       fail = 1;
 
-       /* Test Write Error at offset 4ec */
-       if (!write_eeprom(sp, 0x4EC, 0, 3))
-               fail = 1;
+               /* Test Write Error at offset 4ec */
+               if (!write_eeprom(sp, 0x4EC, 0, 3))
+                       fail = 1;
+       }
+
+       /* Restore values at offsets 0x4F0 and 0x7F0 */
+       if (saved_4F0)
+               write_eeprom(sp, 0x4F0, org_4F0, 3);
+       if (saved_7F0)
+               write_eeprom(sp, 0x7F0, org_7F0, 3);
 
        *data = fail;
-       return 0;
+       return fail;
 }
 
 /**
@@ -4296,7 +4821,7 @@ static int s2io_rldram_test(nic_t * sp, uint64_t * data)
 {
        XENA_dev_config_t __iomem *bar0 = sp->bar0;
        u64 val64;
-       int cnt, iteration = 0, test_pass = 0;
+       int cnt, iteration = 0, test_fail = 0;
 
        val64 = readq(&bar0->adapter_control);
        val64 &= ~ADAPTER_ECC_EN;
@@ -4304,7 +4829,7 @@ static int s2io_rldram_test(nic_t * sp, uint64_t * data)
 
        val64 = readq(&bar0->mc_rldram_test_ctrl);
        val64 |= MC_RLDRAM_TEST_MODE;
-       writeq(val64, &bar0->mc_rldram_test_ctrl);
+       SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
 
        val64 = readq(&bar0->mc_rldram_mrs);
        val64 |= MC_RLDRAM_QUEUE_SIZE_ENABLE;
@@ -4332,17 +4857,12 @@ static int s2io_rldram_test(nic_t * sp, uint64_t * data)
                }
                writeq(val64, &bar0->mc_rldram_test_d2);
 
-               val64 = (u64) (0x0000003fffff0000ULL);
+               val64 = (u64) (0x0000003ffffe0100ULL);
                writeq(val64, &bar0->mc_rldram_test_add);
 
-
-               val64 = MC_RLDRAM_TEST_MODE;
-               writeq(val64, &bar0->mc_rldram_test_ctrl);
-
-               val64 |=
-                   MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_WRITE |
-                   MC_RLDRAM_TEST_GO;
-               writeq(val64, &bar0->mc_rldram_test_ctrl);
+               val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_WRITE |
+                       MC_RLDRAM_TEST_GO;
+               SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
 
                for (cnt = 0; cnt < 5; cnt++) {
                        val64 = readq(&bar0->mc_rldram_test_ctrl);
@@ -4354,11 +4874,8 @@ static int s2io_rldram_test(nic_t * sp, uint64_t * data)
                if (cnt == 5)
                        break;
 
-               val64 = MC_RLDRAM_TEST_MODE;
-               writeq(val64, &bar0->mc_rldram_test_ctrl);
-
-               val64 |= MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO;
-               writeq(val64, &bar0->mc_rldram_test_ctrl);
+               val64 = MC_RLDRAM_TEST_MODE | MC_RLDRAM_TEST_GO;
+               SPECIAL_REG_WRITE(val64, &bar0->mc_rldram_test_ctrl, LF);
 
                for (cnt = 0; cnt < 5; cnt++) {
                        val64 = readq(&bar0->mc_rldram_test_ctrl);
@@ -4371,18 +4888,18 @@ static int s2io_rldram_test(nic_t * sp, uint64_t * data)
                        break;
 
                val64 = readq(&bar0->mc_rldram_test_ctrl);
-               if (val64 & MC_RLDRAM_TEST_PASS)
-                       test_pass = 1;
+               if (!(val64 & MC_RLDRAM_TEST_PASS))
+                       test_fail = 1;
 
                iteration++;
        }
 
-       if (!test_pass)
-               *data = 1;
-       else
-               *data = 0;
+       *data = test_fail;
 
-       return 0;
+       /* Bring the adapter out of test mode */
+       SPECIAL_REG_WRITE(0, &bar0->mc_rldram_test_ctrl, LF);
+
+       return test_fail;
 }
 
 /**
@@ -4886,7 +5403,7 @@ static void s2io_card_down(nic_t * sp)
 
 static int s2io_card_up(nic_t * sp)
 {
-       int i, ret;
+       int i, ret = 0;
        mac_info_t *mac_control;
        struct config_param *config;
        struct net_device *dev = (struct net_device *) sp->dev;
@@ -4898,6 +5415,15 @@ static int s2io_card_up(nic_t * sp)
                return -ENODEV;
        }
 
+       if (sp->intr_type == MSI)
+               ret = s2io_enable_msi(sp);
+       else if (sp->intr_type == MSI_X)
+               ret = s2io_enable_msi_x(sp);
+       if (ret) {
+               DBG_PRINT(ERR_DBG, "%s: Defaulting to INTA\n", dev->name);
+               sp->intr_type = INTA;
+       }
+
        /*
         * Initializing the Rx buffers. For now we are considering only 1
         * Rx ring and initializing buffers into 30 Rx blocks
@@ -5182,6 +5708,8 @@ static void s2io_init_pci(nic_t * sp)
 
 MODULE_AUTHOR("Raghavendra Koushik <raghavendra.koushik@neterion.com>");
 MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
 module_param(tx_fifo_num, int, 0);
 module_param(rx_ring_num, int, 0);
 module_param_array(tx_fifo_len, uint, NULL, 0);
@@ -5199,6 +5727,7 @@ module_param(bimodal, bool, 0);
 module_param(indicate_max_pkts, int, 0);
 #endif
 module_param(rxsync_frequency, int, 0);
+module_param(intr_type, int, 0);
 
 /**
  *  s2io_init_nic - Initialization of the adapter .
@@ -5228,9 +5757,16 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        mac_info_t *mac_control;
        struct config_param *config;
        int mode;
+       u8 dev_intr_type = intr_type;
 
 #ifdef CONFIG_S2IO_NAPI
-       DBG_PRINT(ERR_DBG, "NAPI support has been enabled\n");
+       if (dev_intr_type != INTA) {
+               DBG_PRINT(ERR_DBG, "NAPI cannot be enabled when MSI/MSI-X \
+is enabled. Defaulting to INTA\n");
+               dev_intr_type = INTA;
+       }
+       else
+               DBG_PRINT(ERR_DBG, "NAPI support has been enabled\n");
 #endif
 
        if ((ret = pci_enable_device(pdev))) {
@@ -5257,10 +5793,35 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
                return -ENOMEM;
        }
 
-       if (pci_request_regions(pdev, s2io_driver_name)) {
-               DBG_PRINT(ERR_DBG, "Request Regions failed\n"),
-                   pci_disable_device(pdev);
-               return -ENODEV;
+       if ((dev_intr_type == MSI_X) && 
+                       ((pdev->device != PCI_DEVICE_ID_HERC_WIN) &&
+                       (pdev->device != PCI_DEVICE_ID_HERC_UNI))) {
+               DBG_PRINT(ERR_DBG, "Xframe I does not support MSI_X. \
+Defaulting to INTA\n");
+               dev_intr_type = INTA;
+       }
+       if (dev_intr_type != MSI_X) {
+               if (pci_request_regions(pdev, s2io_driver_name)) {
+                       DBG_PRINT(ERR_DBG, "Request Regions failed\n"),
+                           pci_disable_device(pdev);
+                       return -ENODEV;
+               }
+       }
+       else {
+               if (!(request_mem_region(pci_resource_start(pdev, 0),
+                                pci_resource_len(pdev, 0), s2io_driver_name))) {
+                       DBG_PRINT(ERR_DBG, "bar0 Request Regions failed\n");
+                       pci_disable_device(pdev);
+                       return -ENODEV;
+               }
+               if (!(request_mem_region(pci_resource_start(pdev, 2),
+                                pci_resource_len(pdev, 2), s2io_driver_name))) {
+                       DBG_PRINT(ERR_DBG, "bar1 Request Regions failed\n");
+                       release_mem_region(pci_resource_start(pdev, 0),
+                                   pci_resource_len(pdev, 0));
+                       pci_disable_device(pdev);
+                       return -ENODEV;
+               }
        }
 
        dev = alloc_etherdev(sizeof(nic_t));
@@ -5283,6 +5844,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        sp->pdev = pdev;
        sp->high_dma_flag = dma_flag;
        sp->device_enabled_once = FALSE;
+       sp->intr_type = dev_intr_type;
 
        if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) ||
                (pdev->device == PCI_DEVICE_ID_HERC_UNI))
@@ -5290,6 +5852,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        else
                sp->device_type = XFRAME_I_DEVICE;
 
+               
        /* Initialize some PCI/PCI-X fields of the NIC. */
        s2io_init_pci(sp);
 
@@ -5325,7 +5888,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
                        break;
                }
        }
-       config->max_txds = MAX_SKB_FRAGS;
+       config->max_txds = MAX_SKB_FRAGS + 1;
 
        /* Rx side parameters. */
        if (rx_ring_sz[0] == 0)
@@ -5525,9 +6088,25 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        if (sp->device_type & XFRAME_II_DEVICE) {
                DBG_PRINT(ERR_DBG, "%s: Neterion Xframe II 10GbE adapter ",
                          dev->name);
-               DBG_PRINT(ERR_DBG, "(rev %d), Driver %s\n",
+               DBG_PRINT(ERR_DBG, "(rev %d), Version %s",
                                get_xena_rev_id(sp->pdev),
                                s2io_driver_version);
+#ifdef CONFIG_2BUFF_MODE
+               DBG_PRINT(ERR_DBG, ", Buffer mode %d",2);
+#endif
+               switch(sp->intr_type) {
+                       case INTA:
+                               DBG_PRINT(ERR_DBG, ", Intr type INTA");
+                               break;
+                       case MSI:
+                               DBG_PRINT(ERR_DBG, ", Intr type MSI");
+                               break;
+                       case MSI_X:
+                               DBG_PRINT(ERR_DBG, ", Intr type MSI-X");
+                               break;
+               }
+
+               DBG_PRINT(ERR_DBG, "\nCopyright(c) 2002-2005 Neterion Inc.\n");
                DBG_PRINT(ERR_DBG, "MAC ADDR: %02x:%02x:%02x:%02x:%02x:%02x\n",
                          sp->def_mac_addr[0].mac_addr[0],
                          sp->def_mac_addr[0].mac_addr[1],
@@ -5544,9 +6123,24 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        } else {
                DBG_PRINT(ERR_DBG, "%s: Neterion Xframe I 10GbE adapter ",
                          dev->name);
-               DBG_PRINT(ERR_DBG, "(rev %d), Driver %s\n",
+               DBG_PRINT(ERR_DBG, "(rev %d), Version %s",
                                        get_xena_rev_id(sp->pdev),
                                        s2io_driver_version);
+#ifdef CONFIG_2BUFF_MODE
+               DBG_PRINT(ERR_DBG, ", Buffer mode %d",2);
+#endif
+               switch(sp->intr_type) {
+                       case INTA:
+                               DBG_PRINT(ERR_DBG, ", Intr type INTA");
+                               break;
+                       case MSI:
+                               DBG_PRINT(ERR_DBG, ", Intr type MSI");
+                               break;
+                       case MSI_X:
+                               DBG_PRINT(ERR_DBG, ", Intr type MSI-X");
+                               break;
+               }
+               DBG_PRINT(ERR_DBG, "\nCopyright(c) 2002-2005 Neterion Inc.\n");
                DBG_PRINT(ERR_DBG, "MAC ADDR: %02x:%02x:%02x:%02x:%02x:%02x\n",
                          sp->def_mac_addr[0].mac_addr[0],
                          sp->def_mac_addr[0].mac_addr[1],
@@ -5589,7 +6183,14 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
       mem_alloc_failed:
        free_shared_mem(sp);
        pci_disable_device(pdev);
-       pci_release_regions(pdev);
+       if (dev_intr_type != MSI_X)
+               pci_release_regions(pdev);
+       else {
+               release_mem_region(pci_resource_start(pdev, 0),
+                       pci_resource_len(pdev, 0));
+               release_mem_region(pci_resource_start(pdev, 2),
+                       pci_resource_len(pdev, 2));
+       }
        pci_set_drvdata(pdev, NULL);
        free_netdev(dev);
 
@@ -5623,7 +6224,14 @@ static void __devexit s2io_rem_nic(struct pci_dev *pdev)
        iounmap(sp->bar0);
        iounmap(sp->bar1);
        pci_disable_device(pdev);
-       pci_release_regions(pdev);
+       if (sp->intr_type != MSI_X)
+               pci_release_regions(pdev);
+       else {
+               release_mem_region(pci_resource_start(pdev, 0),
+                       pci_resource_len(pdev, 0));
+               release_mem_region(pci_resource_start(pdev, 2),
+                       pci_resource_len(pdev, 2));
+       }
        pci_set_drvdata(pdev, NULL);
        free_netdev(dev);
 }