[PATCH] gianfar: Use new PHY_ID_FMT macro
[safe/jmp/linux-2.6] / drivers / net / s2io.c
index ee498d2..89c4678 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
  * 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.
+ * rx_ring_mode: This defines the operation mode of all 8 rings. The valid
+ *             values are 1, 2 and 3.
  * 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
  * Tx descriptors that can be associated with each corresponding FIFO.
@@ -53,8 +55,8 @@
 #include <linux/timex.h>
 #include <linux/sched.h>
 #include <linux/ethtool.h>
-#include <linux/version.h>
 #include <linux/workqueue.h>
+#include <linux/if_vlan.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include "s2io.h"
 #include "s2io-regs.h"
 
+#define DRV_VERSION "Version 2.0.9.4"
+
 /* S2io Driver name & version. */
 static char s2io_driver_name[] = "Neterion";
-static char s2io_driver_version[] = "Version 1.7.7";
+static char s2io_driver_version[] = DRV_VERSION;
+
+int rxd_size[4] = {32,48,48,64};
+int rxd_count[4] = {127,85,85,63};
 
 static inline int RXD_IS_UP2DT(RxD_t *rxdp)
 {
@@ -83,9 +90,10 @@ static inline int RXD_IS_UP2DT(RxD_t *rxdp)
  * problem, 600B, 600C, 600D, 640B, 640C and 640D.
  * macro below identifies these cards given the subsystem_id.
  */
-#define CARDS_WITH_FAULTY_LINK_INDICATORS(subid) \
-               (((subid >= 0x600B) && (subid <= 0x600D)) || \
-                ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0
+#define CARDS_WITH_FAULTY_LINK_INDICATORS(dev_type, subid) \
+       (dev_type == XFRAME_I_DEVICE) ?                 \
+               ((((subid >= 0x600B) && (subid <= 0x600D)) || \
+                ((subid >= 0x640B) && (subid <= 0x640D))) ? 1 : 0) : 0
 
 #define LINK_IS_UP(val64) (!(val64 & (ADAPTER_STATUS_RMAC_REMOTE_FAULT | \
                                      ADAPTER_STATUS_RMAC_LOCAL_FAULT)))
@@ -100,7 +108,7 @@ static inline int rx_buffer_level(nic_t * sp, int rxb_size, int ring)
        mac_control = &sp->mac_control;
        if ((mac_control->rings[ring].pkt_cnt - rxb_size) > 16) {
                level = LOW;
-               if (rxb_size <= MAX_RXDS_PER_BLOCK) {
+               if (rxb_size <= rxd_count[sp->rxd_mode]) {
                        level = PANIC;
                }
        }
@@ -174,6 +182,30 @@ static char ethtool_stats_keys[][ETH_GSTRING_LEN] = {
                        timer.data = (unsigned long) arg;       \
                        mod_timer(&timer, (jiffies + exp))      \
 
+/* Add the vlan */
+static void s2io_vlan_rx_register(struct net_device *dev,
+                                       struct vlan_group *grp)
+{
+       nic_t *nic = dev->priv;
+       unsigned long flags;
+
+       spin_lock_irqsave(&nic->tx_lock, flags);
+       nic->vlgrp = grp;
+       spin_unlock_irqrestore(&nic->tx_lock, flags);
+}
+
+/* Unregister the vlan */
+static void s2io_vlan_rx_kill_vid(struct net_device *dev, unsigned long vid)
+{
+       nic_t *nic = dev->priv;
+       unsigned long flags;
+
+       spin_lock_irqsave(&nic->tx_lock, flags);
+       if (nic->vlgrp)
+               nic->vlgrp->vlan_devices[vid] = NULL;
+       spin_unlock_irqrestore(&nic->tx_lock, flags);
+}
+
 /*
  * Constants to be programmed into the Xena's registers, to configure
  * the XAUI.
@@ -182,7 +214,28 @@ static char ethtool_stats_keys[][ETH_GSTRING_LEN] = {
 #define SWITCH_SIGN    0xA5A5A5A5A5A5A5A5ULL
 #define        END_SIGN        0x0
 
-static u64 default_mdio_cfg[] = {
+static u64 herc_act_dtx_cfg[] = {
+       /* Set address */
+       0x8000051536750000ULL, 0x80000515367500E0ULL,
+       /* Write data */
+       0x8000051536750004ULL, 0x80000515367500E4ULL,
+       /* Set address */
+       0x80010515003F0000ULL, 0x80010515003F00E0ULL,
+       /* Write data */
+       0x80010515003F0004ULL, 0x80010515003F00E4ULL,
+       /* Set address */
+       0x801205150D440000ULL, 0x801205150D4400E0ULL,
+       /* Write data */
+       0x801205150D440004ULL, 0x801205150D4400E4ULL,
+       /* Set address */
+       0x80020515F2100000ULL, 0x80020515F21000E0ULL,
+       /* Write data */
+       0x80020515F2100004ULL, 0x80020515F21000E4ULL,
+       /* Done */
+       END_SIGN
+};
+
+static u64 xena_mdio_cfg[] = {
        /* Reset PMA PLL */
        0xC001010000000000ULL, 0xC0010100000000E0ULL,
        0xC0010100008000E4ULL,
@@ -192,7 +245,7 @@ static u64 default_mdio_cfg[] = {
        END_SIGN
 };
 
-static u64 default_dtx_cfg[] = {
+static u64 xena_dtx_cfg[] = {
        0x8000051500000000ULL, 0x80000515000000E0ULL,
        0x80000515D93500E4ULL, 0x8001051500000000ULL,
        0x80010515000000E0ULL, 0x80010515001E00E4ULL,
@@ -247,6 +300,7 @@ static unsigned int rx_ring_sz[MAX_RX_RINGS] =
     {[0 ...(MAX_RX_RINGS - 1)] = 0 };
 static unsigned int rts_frm_len[MAX_RX_RINGS] =
     {[0 ...(MAX_RX_RINGS - 1)] = 0 };
+static unsigned int rx_ring_mode = 1;
 static unsigned int use_continuous_tx_intrs = 1;
 static unsigned int rmac_pause_time = 65535;
 static unsigned int mc_pause_threshold_q0q3 = 187;
@@ -254,9 +308,15 @@ static unsigned int mc_pause_threshold_q4q7 = 187;
 static unsigned int shared_splits;
 static unsigned int tmac_util_period = 5;
 static unsigned int rmac_util_period = 5;
+static unsigned int bimodal = 0;
+static unsigned int l3l4hdr_size = 128;
 #ifndef CONFIG_S2IO_NAPI
 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.
@@ -303,10 +363,8 @@ static int init_shared_mem(struct s2io_nic *nic)
        int i, j, blk_cnt, rx_sz, tx_sz;
        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
 
        mac_info_t *mac_control;
        struct config_param *config;
@@ -321,10 +379,9 @@ static int init_shared_mem(struct s2io_nic *nic)
                size += config->tx_cfg[i].fifo_len;
        }
        if (size > MAX_AVAILABLE_TXDS) {
-               DBG_PRINT(ERR_DBG, "%s: Total number of Tx FIFOs ",
-                         dev->name);
-               DBG_PRINT(ERR_DBG, "exceeds the maximum value ");
-               DBG_PRINT(ERR_DBG, "that can be used\n");
+               DBG_PRINT(ERR_DBG, "%s: Requested TxDs too high, ",
+                         __FUNCTION__);
+               DBG_PRINT(ERR_DBG, "Requested: %d, max supported: 8192\n", size);
                return FAILURE;
        }
 
@@ -355,7 +412,7 @@ 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 + 2;
 
                for (j = 0; j < page_num; j++) {
                        int k = 0;
@@ -369,6 +426,26 @@ 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)
@@ -382,10 +459,15 @@ static int init_shared_mem(struct s2io_nic *nic)
                }
        }
 
+       nic->ufo_in_band_v = kmalloc((sizeof(u64) * size), GFP_KERNEL);
+       if (!nic->ufo_in_band_v)
+               return -ENOMEM;
+
        /* Allocation and initialization of RXDs in Rings */
        size = 0;
        for (i = 0; i < config->rx_ring_num; i++) {
-               if (config->rx_cfg[i].num_rxd % (MAX_RXDS_PER_BLOCK + 1)) {
+               if (config->rx_cfg[i].num_rxd %
+                   (rxd_count[nic->rxd_mode] + 1)) {
                        DBG_PRINT(ERR_DBG, "%s: RxD count of ", dev->name);
                        DBG_PRINT(ERR_DBG, "Ring%d is not a multiple of ",
                                  i);
@@ -394,11 +476,15 @@ static int init_shared_mem(struct s2io_nic *nic)
                }
                size += config->rx_cfg[i].num_rxd;
                mac_control->rings[i].block_count =
-                   config->rx_cfg[i].num_rxd / (MAX_RXDS_PER_BLOCK + 1);
-               mac_control->rings[i].pkt_cnt =
-                   config->rx_cfg[i].num_rxd - mac_control->rings[i].block_count;
+                       config->rx_cfg[i].num_rxd /
+                       (rxd_count[nic->rxd_mode] + 1 );
+               mac_control->rings[i].pkt_cnt = config->rx_cfg[i].num_rxd -
+                       mac_control->rings[i].block_count;
        }
-       size = (size * (sizeof(RxD_t)));
+       if (nic->rxd_mode == RXD_MODE_1)
+               size = (size * (sizeof(RxD1_t)));
+       else
+               size = (size * (sizeof(RxD3_t)));
        rx_sz = size;
 
        for (i = 0; i < config->rx_ring_num; i++) {
@@ -413,15 +499,15 @@ static int init_shared_mem(struct s2io_nic *nic)
                mac_control->rings[i].nic = nic;
                mac_control->rings[i].ring_no = i;
 
-               blk_cnt =
-                   config->rx_cfg[i].num_rxd / (MAX_RXDS_PER_BLOCK + 1);
+               blk_cnt = config->rx_cfg[i].num_rxd /
+                               (rxd_count[nic->rxd_mode] + 1);
                /*  Allocating all the Rx blocks */
                for (j = 0; j < blk_cnt; j++) {
-#ifndef CONFIG_2BUFF_MODE
-                       size = (MAX_RXDS_PER_BLOCK + 1) * (sizeof(RxD_t));
-#else
-                       size = SIZE_OF_BLOCK;
-#endif
+                       rx_block_info_t *rx_blocks;
+                       int l;
+
+                       rx_blocks = &mac_control->rings[i].rx_blocks[j];
+                       size = SIZE_OF_BLOCK; //size is always page size
                        tmp_v_addr = pci_alloc_consistent(nic->pdev, size,
                                                          &tmp_p_addr);
                        if (tmp_v_addr == NULL) {
@@ -431,11 +517,24 @@ static int init_shared_mem(struct s2io_nic *nic)
                                 * memory that was alloced till the
                                 * failure happened.
                                 */
-                               mac_control->rings[i].rx_blocks[j].block_virt_addr =
-                                   tmp_v_addr;
+                               rx_blocks->block_virt_addr = tmp_v_addr;
                                return -ENOMEM;
                        }
                        memset(tmp_v_addr, 0, size);
+                       rx_blocks->block_virt_addr = tmp_v_addr;
+                       rx_blocks->block_dma_addr = tmp_p_addr;
+                       rx_blocks->rxds = kmalloc(sizeof(rxd_info_t)*
+                                                 rxd_count[nic->rxd_mode],
+                                                 GFP_KERNEL);
+                       for (l=0; l<rxd_count[nic->rxd_mode];l++) {
+                               rx_blocks->rxds[l].virt_addr =
+                                       rx_blocks->block_virt_addr +
+                                       (rxd_size[nic->rxd_mode] * l);
+                               rx_blocks->rxds[l].dma_addr =
+                                       rx_blocks->block_dma_addr +
+                                       (rxd_size[nic->rxd_mode] * l);
+                       }
+
                        mac_control->rings[i].rx_blocks[j].block_virt_addr =
                                tmp_v_addr;
                        mac_control->rings[i].rx_blocks[j].block_dma_addr =
@@ -455,62 +554,58 @@ static int init_shared_mem(struct s2io_nic *nic)
                                              blk_cnt].block_dma_addr;
 
                        pre_rxd_blk = (RxD_block_t *) tmp_v_addr;
-                       pre_rxd_blk->reserved_1 = END_OF_BLOCK; /* last RxD
-                                                                * marker.
-                                                                */
-#ifndef        CONFIG_2BUFF_MODE
                        pre_rxd_blk->reserved_2_pNext_RxD_block =
                            (unsigned long) tmp_v_addr_next;
-#endif
                        pre_rxd_blk->pNext_RxD_Blk_physical =
                            (u64) tmp_p_addr_next;
                }
        }
-
-#ifdef CONFIG_2BUFF_MODE
-       /*
-        * Allocation of Storages for buffer addresses in 2BUFF mode
-        * and the buffers as well.
-        */
-       for (i = 0; i < config->rx_ring_num; i++) {
-               blk_cnt =
-                   config->rx_cfg[i].num_rxd / (MAX_RXDS_PER_BLOCK + 1);
-               mac_control->rings[i].ba = kmalloc((sizeof(buffAdd_t *) * blk_cnt),
+       if (nic->rxd_mode >= RXD_MODE_3A) {
+               /*
+                * Allocation of Storages for buffer addresses in 2BUFF mode
+                * and the buffers as well.
+                */
+               for (i = 0; i < config->rx_ring_num; i++) {
+                       blk_cnt = config->rx_cfg[i].num_rxd /
+                          (rxd_count[nic->rxd_mode]+ 1);
+                       mac_control->rings[i].ba =
+                               kmalloc((sizeof(buffAdd_t *) * blk_cnt),
                                     GFP_KERNEL);
-               if (!mac_control->rings[i].ba)
-                       return -ENOMEM;
-               for (j = 0; j < blk_cnt; j++) {
-                       int k = 0;
-                       mac_control->rings[i].ba[j] = kmalloc((sizeof(buffAdd_t) *
-                                                (MAX_RXDS_PER_BLOCK + 1)),
-                                               GFP_KERNEL);
-                       if (!mac_control->rings[i].ba[j])
+                       if (!mac_control->rings[i].ba)
                                return -ENOMEM;
-                       while (k != MAX_RXDS_PER_BLOCK) {
-                               ba = &mac_control->rings[i].ba[j][k];
-
-                               ba->ba_0_org = (void *) kmalloc
-                                   (BUF0_LEN + ALIGN_SIZE, GFP_KERNEL);
-                               if (!ba->ba_0_org)
-                                       return -ENOMEM;
-                               tmp = (u64) ba->ba_0_org;
-                               tmp += ALIGN_SIZE;
-                               tmp &= ~((u64) ALIGN_SIZE);
-                               ba->ba_0 = (void *) tmp;
-
-                               ba->ba_1_org = (void *) kmalloc
-                                   (BUF1_LEN + ALIGN_SIZE, GFP_KERNEL);
-                               if (!ba->ba_1_org)
+                       for (j = 0; j < blk_cnt; j++) {
+                               int k = 0;
+                               mac_control->rings[i].ba[j] =
+                                       kmalloc((sizeof(buffAdd_t) *
+                                               (rxd_count[nic->rxd_mode] + 1)),
+                                               GFP_KERNEL);
+                               if (!mac_control->rings[i].ba[j])
                                        return -ENOMEM;
-                               tmp = (u64) ba->ba_1_org;
-                               tmp += ALIGN_SIZE;
-                               tmp &= ~((u64) ALIGN_SIZE);
-                               ba->ba_1 = (void *) tmp;
-                               k++;
+                               while (k != rxd_count[nic->rxd_mode]) {
+                                       ba = &mac_control->rings[i].ba[j][k];
+
+                                       ba->ba_0_org = (void *) kmalloc
+                                           (BUF0_LEN + ALIGN_SIZE, GFP_KERNEL);
+                                       if (!ba->ba_0_org)
+                                               return -ENOMEM;
+                                       tmp = (unsigned long)ba->ba_0_org;
+                                       tmp += 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 = (unsigned long) ba->ba_1_org;
+                                       tmp += ALIGN_SIZE;
+                                       tmp &= ~((unsigned long) ALIGN_SIZE);
+                                       ba->ba_1 = (void *) tmp;
+                                       k++;
+                               }
                        }
                }
        }
-#endif
 
        /* Allocation and initialization of Statistics block */
        size = sizeof(StatInfo_t);
@@ -551,7 +646,7 @@ 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;
@@ -567,8 +662,10 @@ 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)
+                               return; 
                        if (!mac_control->fifos[i].list_info[mem_blks].
-                           list_virt_addr)
+                                list_virt_addr)
                                break;
                        pci_free_consistent(nic->pdev, PAGE_SIZE,
                                            mac_control->fifos[i].
@@ -578,14 +675,23 @@ 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);
        }
 
-#ifndef CONFIG_2BUFF_MODE
-       size = (MAX_RXDS_PER_BLOCK + 1) * (sizeof(RxD_t));
-#else
        size = SIZE_OF_BLOCK;
-#endif
        for (i = 0; i < config->rx_ring_num; i++) {
                blk_cnt = mac_control->rings[i].block_count;
                for (j = 0; j < blk_cnt; j++) {
@@ -597,30 +703,31 @@ static void free_shared_mem(struct s2io_nic *nic)
                                break;
                        pci_free_consistent(nic->pdev, size,
                                            tmp_v_addr, tmp_p_addr);
+                       kfree(mac_control->rings[i].rx_blocks[j].rxds);
                }
        }
 
-#ifdef CONFIG_2BUFF_MODE
-       /* Freeing buffer storage addresses in 2BUFF mode. */
-       for (i = 0; i < config->rx_ring_num; i++) {
-               blk_cnt =
-                   config->rx_cfg[i].num_rxd / (MAX_RXDS_PER_BLOCK + 1);
-               for (j = 0; j < blk_cnt; j++) {
-                       int k = 0;
-                       if (!mac_control->rings[i].ba[j])
-                               continue;
-                       while (k != MAX_RXDS_PER_BLOCK) {
-                               buffAdd_t *ba = &mac_control->rings[i].ba[j][k];
-                               kfree(ba->ba_0_org);
-                               kfree(ba->ba_1_org);
-                               k++;
+       if (nic->rxd_mode >= RXD_MODE_3A) {
+               /* Freeing buffer storage addresses in 2BUFF mode. */
+               for (i = 0; i < config->rx_ring_num; i++) {
+                       blk_cnt = config->rx_cfg[i].num_rxd /
+                           (rxd_count[nic->rxd_mode] + 1);
+                       for (j = 0; j < blk_cnt; j++) {
+                               int k = 0;
+                               if (!mac_control->rings[i].ba[j])
+                                       continue;
+                               while (k != rxd_count[nic->rxd_mode]) {
+                                       buffAdd_t *ba =
+                                               &mac_control->rings[i].ba[j][k];
+                                       kfree(ba->ba_0_org);
+                                       kfree(ba->ba_1_org);
+                                       k++;
+                               }
+                               kfree(mac_control->rings[i].ba[j]);
                        }
-                       kfree(mac_control->rings[i].ba[j]);
-               }
-               if (mac_control->rings[i].ba)
                        kfree(mac_control->rings[i].ba);
+               }
        }
-#endif
 
        if (mac_control->stats_mem) {
                pci_free_consistent(nic->pdev,
@@ -628,6 +735,89 @@ static void free_shared_mem(struct s2io_nic *nic)
                                    mac_control->stats_mem,
                                    mac_control->stats_mem_phy);
        }
+       if (nic->ufo_in_band_v)
+               kfree(nic->ufo_in_band_v);
+}
+
+/**
+ * s2io_verify_pci_mode -
+ */
+
+static int s2io_verify_pci_mode(nic_t *nic)
+{
+       XENA_dev_config_t __iomem *bar0 = nic->bar0;
+       register u64 val64 = 0;
+       int     mode;
+
+       val64 = readq(&bar0->pci_mode);
+       mode = (u8)GET_PCI_MODE(val64);
+
+       if ( val64 & PCI_MODE_UNKNOWN_MODE)
+               return -1;      /* Unknown PCI mode */
+       return mode;
+}
+
+
+/**
+ * s2io_print_pci_mode -
+ */
+static int s2io_print_pci_mode(nic_t *nic)
+{
+       XENA_dev_config_t __iomem *bar0 = nic->bar0;
+       register u64 val64 = 0;
+       int     mode;
+       struct config_param *config = &nic->config;
+
+       val64 = readq(&bar0->pci_mode);
+       mode = (u8)GET_PCI_MODE(val64);
+
+       if ( val64 & PCI_MODE_UNKNOWN_MODE)
+               return -1;      /* Unknown PCI mode */
+
+       if (val64 & PCI_MODE_32_BITS) {
+               DBG_PRINT(ERR_DBG, "%s: Device is on 32 bit ", nic->dev->name);
+       } else {
+               DBG_PRINT(ERR_DBG, "%s: Device is on 64 bit ", nic->dev->name);
+       }
+
+       switch(mode) {
+               case PCI_MODE_PCI_33:
+                       DBG_PRINT(ERR_DBG, "33MHz PCI bus\n");
+                       config->bus_speed = 33;
+                       break;
+               case PCI_MODE_PCI_66:
+                       DBG_PRINT(ERR_DBG, "66MHz PCI bus\n");
+                       config->bus_speed = 133;
+                       break;
+               case PCI_MODE_PCIX_M1_66:
+                       DBG_PRINT(ERR_DBG, "66MHz PCIX(M1) bus\n");
+                       config->bus_speed = 133; /* Herc doubles the clock rate */
+                       break;
+               case PCI_MODE_PCIX_M1_100:
+                       DBG_PRINT(ERR_DBG, "100MHz PCIX(M1) bus\n");
+                       config->bus_speed = 200;
+                       break;
+               case PCI_MODE_PCIX_M1_133:
+                       DBG_PRINT(ERR_DBG, "133MHz PCIX(M1) bus\n");
+                       config->bus_speed = 266;
+                       break;
+               case PCI_MODE_PCIX_M2_66:
+                       DBG_PRINT(ERR_DBG, "133MHz PCIX(M2) bus\n");
+                       config->bus_speed = 133;
+                       break;
+               case PCI_MODE_PCIX_M2_100:
+                       DBG_PRINT(ERR_DBG, "200MHz PCIX(M2) bus\n");
+                       config->bus_speed = 200;
+                       break;
+               case PCI_MODE_PCIX_M2_133:
+                       DBG_PRINT(ERR_DBG, "266MHz PCIX(M2) bus\n");
+                       config->bus_speed = 266;
+                       break;
+               default:
+                       return -1;      /* Unsupported bus speed */
+       }
+
+       return mode;
 }
 
 /**
@@ -662,6 +852,16 @@ static int init_nic(struct s2io_nic *nic)
                return -1;
        }
 
+       /*
+        * Herc requires EOI to be removed from reset before XGXS, so..
+        */
+       if (nic->device_type & XFRAME_II_DEVICE) {
+               val64 = 0xA500000000ULL;
+               writeq(val64, &bar0->sw_reset);
+               msleep(500);
+               val64 = readq(&bar0->sw_reset);
+       }
+
        /* Remove XGXS from reset state */
        val64 = 0;
        writeq(val64, &bar0->sw_reset);
@@ -693,41 +893,51 @@ static int init_nic(struct s2io_nic *nic)
         * of 64 bit values into two registers in a particular
         * sequence. Hence a macro 'SWITCH_SIGN' has been defined
         * which will be defined in the array of configuration values
-        * (default_dtx_cfg & default_mdio_cfg) at appropriate places
+        * (xena_dtx_cfg & xena_mdio_cfg) at appropriate places
         * to switch writing from one regsiter to another. We continue
         * writing these values until we encounter the 'END_SIGN' macro.
         * For example, After making a series of 21 writes into
         * dtx_control register the 'SWITCH_SIGN' appears and hence we
         * start writing into mdio_control until we encounter END_SIGN.
         */
-       while (1) {
-             dtx_cfg:
-               while (default_dtx_cfg[dtx_cnt] != END_SIGN) {
-                       if (default_dtx_cfg[dtx_cnt] == SWITCH_SIGN) {
-                               dtx_cnt++;
-                               goto mdio_cfg;
-                       }
-                       SPECIAL_REG_WRITE(default_dtx_cfg[dtx_cnt],
+       if (nic->device_type & XFRAME_II_DEVICE) {
+               while (herc_act_dtx_cfg[dtx_cnt] != END_SIGN) {
+                       SPECIAL_REG_WRITE(herc_act_dtx_cfg[dtx_cnt],
                                          &bar0->dtx_control, UF);
-                       val64 = readq(&bar0->dtx_control);
+                       if (dtx_cnt & 0x1)
+                               msleep(1); /* Necessary!! */
                        dtx_cnt++;
                }
-             mdio_cfg:
-               while (default_mdio_cfg[mdio_cnt] != END_SIGN) {
-                       if (default_mdio_cfg[mdio_cnt] == SWITCH_SIGN) {
+       } else {
+               while (1) {
+                     dtx_cfg:
+                       while (xena_dtx_cfg[dtx_cnt] != END_SIGN) {
+                               if (xena_dtx_cfg[dtx_cnt] == SWITCH_SIGN) {
+                                       dtx_cnt++;
+                                       goto mdio_cfg;
+                               }
+                               SPECIAL_REG_WRITE(xena_dtx_cfg[dtx_cnt],
+                                                 &bar0->dtx_control, UF);
+                               val64 = readq(&bar0->dtx_control);
+                               dtx_cnt++;
+                       }
+                     mdio_cfg:
+                       while (xena_mdio_cfg[mdio_cnt] != END_SIGN) {
+                               if (xena_mdio_cfg[mdio_cnt] == SWITCH_SIGN) {
+                                       mdio_cnt++;
+                                       goto dtx_cfg;
+                               }
+                               SPECIAL_REG_WRITE(xena_mdio_cfg[mdio_cnt],
+                                                 &bar0->mdio_control, UF);
+                               val64 = readq(&bar0->mdio_control);
                                mdio_cnt++;
+                       }
+                       if ((xena_dtx_cfg[dtx_cnt] == END_SIGN) &&
+                           (xena_mdio_cfg[mdio_cnt] == END_SIGN)) {
+                               break;
+                       } else {
                                goto dtx_cfg;
                        }
-                       SPECIAL_REG_WRITE(default_mdio_cfg[mdio_cnt],
-                                         &bar0->mdio_control, UF);
-                       val64 = readq(&bar0->mdio_control);
-                       mdio_cnt++;
-               }
-               if ((default_dtx_cfg[dtx_cnt] == END_SIGN) &&
-                   (default_mdio_cfg[mdio_cnt] == END_SIGN)) {
-                       break;
-               } else {
-                       goto dtx_cfg;
                }
        }
 
@@ -778,7 +988,8 @@ static int init_nic(struct s2io_nic *nic)
         * Disable 4 PCCs for Xena1, 2 and 3 as per H/W bug
         * SXE-008 TRANSMIT DMA ARBITRATION ISSUE.
         */
-       if (get_xena_rev_id(nic->pdev) < 4)
+       if ((nic->device_type == XFRAME_I_DEVICE) &&
+               (get_xena_rev_id(nic->pdev) < 4))
                writeq(PCC_ENABLE_FOUR, &bar0->pcc_enable);
 
        val64 = readq(&bar0->tx_fifo_partition_0);
@@ -808,7 +1019,11 @@ static int init_nic(struct s2io_nic *nic)
         * configured Rings.
         */
        val64 = 0;
-       mem_size = 64;
+       if (nic->device_type & XFRAME_II_DEVICE)
+               mem_size = 32;
+       else
+               mem_size = 64;
+
        for (i = 0; i < config->rx_ring_num; i++) {
                switch (i) {
                case 0:
@@ -1091,6 +1306,11 @@ static int init_nic(struct s2io_nic *nic)
        /* Program statistics memory */
        writeq(mac_control->stats_mem_phy, &bar0->stat_addr);
 
+       if (nic->device_type == XFRAME_II_DEVICE) {
+               val64 = STAT_BC(0x320);
+               writeq(val64, &bar0->stat_byte_cnt);
+       }
+
        /*
         * Initializing the sampling rate for the device to calculate the
         * bandwidth utilization.
@@ -1109,12 +1329,18 @@ static int init_nic(struct s2io_nic *nic)
         * 250 interrupts per sec. Continuous interrupts are enabled
         * by default.
         */
-       val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078) |
-           TTI_DATA1_MEM_TX_URNG_A(0xA) |
+       if (nic->device_type == XFRAME_II_DEVICE) {
+               int count = (nic->config.bus_speed * 125)/2;
+               val64 = TTI_DATA1_MEM_TX_TIMER_VAL(count);
+       } else {
+
+               val64 = TTI_DATA1_MEM_TX_TIMER_VAL(0x2078);
+       }
+       val64 |= TTI_DATA1_MEM_TX_URNG_A(0xA) |
            TTI_DATA1_MEM_TX_URNG_B(0x10) |
            TTI_DATA1_MEM_TX_URNG_C(0x30) | TTI_DATA1_MEM_TX_TIMER_AC_EN;
-       if (use_continuous_tx_intrs)
-               val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN;
+               if (use_continuous_tx_intrs)
+                       val64 |= TTI_DATA1_MEM_TX_TIMER_CI_EN;
        writeq(val64, &bar0->tti_data1_mem);
 
        val64 = TTI_DATA2_MEM_TX_UFC_A(0x10) |
@@ -1146,42 +1372,91 @@ static int init_nic(struct s2io_nic *nic)
                time++;
        }
 
-       /* RTI Initialization */
-       val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF) |
-           RTI_DATA1_MEM_RX_URNG_A(0xA) |
-           RTI_DATA1_MEM_RX_URNG_B(0x10) |
-           RTI_DATA1_MEM_RX_URNG_C(0x30) | RTI_DATA1_MEM_RX_TIMER_AC_EN;
+       if (nic->config.bimodal) {
+               int k = 0;
+               for (k = 0; k < config->rx_ring_num; k++) {
+                       val64 = TTI_CMD_MEM_WE | TTI_CMD_MEM_STROBE_NEW_CMD;
+                       val64 |= TTI_CMD_MEM_OFFSET(0x38+k);
+                       writeq(val64, &bar0->tti_command_mem);
 
-       writeq(val64, &bar0->rti_data1_mem);
+               /*
+                * Once the operation completes, the Strobe bit of the command
+                * register will be reset. We poll for this particular condition
+                * We wait for a maximum of 500ms for the operation to complete,
+                * if it's not complete by then we return error.
+               */
+                       time = 0;
+                       while (TRUE) {
+                               val64 = readq(&bar0->tti_command_mem);
+                               if (!(val64 & TTI_CMD_MEM_STROBE_NEW_CMD)) {
+                                       break;
+                               }
+                               if (time > 10) {
+                                       DBG_PRINT(ERR_DBG,
+                                               "%s: TTI init Failed\n",
+                                       dev->name);
+                                       return -1;
+                               }
+                               time++;
+                               msleep(50);
+                       }
+               }
+       } else {
 
-       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);
-       writeq(val64, &bar0->rti_data2_mem);
+               /* RTI Initialization */
+               if (nic->device_type == XFRAME_II_DEVICE) {
+                       /*
+                        * Programmed to generate Apprx 500 Intrs per
+                        * second
+                        */
+                       int count = (nic->config.bus_speed * 125)/4;
+                       val64 = RTI_DATA1_MEM_RX_TIMER_VAL(count);
+               } else {
+                       val64 = RTI_DATA1_MEM_RX_TIMER_VAL(0xFFF);
+               }
+               val64 |= RTI_DATA1_MEM_RX_URNG_A(0xA) |
+                   RTI_DATA1_MEM_RX_URNG_B(0x10) |
+                   RTI_DATA1_MEM_RX_URNG_C(0x30) | RTI_DATA1_MEM_RX_TIMER_AC_EN;
+
+               writeq(val64, &bar0->rti_data1_mem);
+
+               val64 = RTI_DATA2_MEM_RX_UFC_A(0x1) |
+                   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);
 
-       val64 = RTI_CMD_MEM_WE | RTI_CMD_MEM_STROBE_NEW_CMD;
-       writeq(val64, &bar0->rti_command_mem);
+               for (i = 0; i < config->rx_ring_num; i++) {
+                       val64 = RTI_CMD_MEM_WE | RTI_CMD_MEM_STROBE_NEW_CMD
+                                       | RTI_CMD_MEM_OFFSET(i);
+                       writeq(val64, &bar0->rti_command_mem);
 
-       /*
-        * Once the operation completes, the Strobe bit of the
-        * command register will be reset. We poll for this
-        * particular condition. We wait for a maximum of 500ms
-        * for the operation to complete, if it's not complete
-        * by then we return error.
-        */
-       time = 0;
-       while (TRUE) {
-               val64 = readq(&bar0->rti_command_mem);
-               if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD)) {
-                       break;
-               }
-               if (time > 10) {
-                       DBG_PRINT(ERR_DBG, "%s: RTI init Failed\n",
-                                 dev->name);
-                       return -1;
+                       /*
+                        * Once the operation completes, the Strobe bit of the
+                        * command register will be reset. We poll for this
+                        * particular condition. We wait for a maximum of 500ms
+                        * for the operation to complete, if it's not complete
+                        * by then we return error.
+                        */
+                       time = 0;
+                       while (TRUE) {
+                               val64 = readq(&bar0->rti_command_mem);
+                               if (!(val64 & RTI_CMD_MEM_STROBE_NEW_CMD)) {
+                                       break;
+                               }
+                               if (time > 10) {
+                                       DBG_PRINT(ERR_DBG, "%s: RTI init Failed\n",
+                                                 dev->name);
+                                       return -1;
+                               }
+                               time++;
+                               msleep(50);
+                       }
                }
-               time++;
-               msleep(50);
        }
 
        /*
@@ -1192,7 +1467,7 @@ 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);
@@ -1242,8 +1517,35 @@ static int init_nic(struct s2io_nic *nic)
        val64 |= PIC_CNTL_SHARED_SPLITS(shared_splits);
        writeq(val64, &bar0->pic_control);
 
+       /*
+        * Programming the Herc to split every write transaction
+        * that does not start on an ADB to reduce disconnects.
+        */
+       if (nic->device_type == XFRAME_II_DEVICE) {
+               val64 = WREQ_SPLIT_MASK_SET_MASK(255);
+               writeq(val64, &bar0->wreq_split_mask);
+       }
+
+       /* Setting Link stability period to 64 ms */ 
+       if (nic->device_type == XFRAME_II_DEVICE) {
+               val64 = MISC_LINK_STABILITY_PRD(3);
+               writeq(val64, &bar0->misc_control);
+       }
+
        return SUCCESS;
 }
+#define LINK_UP_DOWN_INTERRUPT         1
+#define MAC_RMAC_ERR_TIMER             2
+
+static 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;
+}
 
 /**
  *  en_dis_able_nic_intrs - Enable or Disable the interrupts
@@ -1271,11 +1573,22 @@ static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag)
                        temp64 &= ~((u64) val64);
                        writeq(temp64, &bar0->general_int_mask);
                        /*
-                        * Disabled all PCIX, Flash, MDIO, IIC and GPIO
+                        * If Hercules adapter enable GPIO otherwise
+                        * disabled all PCIX, Flash, MDIO, IIC and GPIO
                         * interrupts for now.
                         * TODO
                         */
-                       writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
+                       if (s2io_link_fault_indication(nic) ==
+                                       LINK_UP_DOWN_INTERRUPT ) {
+                               temp64 = readq(&bar0->pic_int_mask);
+                               temp64 &= ~((u64) PIC_INT_GPIO);
+                               writeq(temp64, &bar0->pic_int_mask);
+                               temp64 = readq(&bar0->gpio_int_mask);
+                               temp64 &= ~((u64) GPIO_INT_MASK_LINK_UP);
+                               writeq(temp64, &bar0->gpio_int_mask);
+                       } else {
+                               writeq(DISABLE_ALL_INTRS, &bar0->pic_int_mask);
+                       }
                        /*
                         * No MSI Support is available presently, so TTI and
                         * RTI interrupts are also disabled.
@@ -1366,17 +1679,8 @@ static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag)
                        writeq(temp64, &bar0->general_int_mask);
                        /*
                         * All MAC block error interrupts are disabled for now
-                        * except the link status change interrupt.
                         * TODO
                         */
-                       val64 = MAC_INT_STATUS_RMAC_INT;
-                       temp64 = readq(&bar0->mac_int_mask);
-                       temp64 &= ~((u64) val64);
-                       writeq(temp64, &bar0->mac_int_mask);
-
-                       val64 = readq(&bar0->mac_rmac_err_mask);
-                       val64 &= ~((u64) RMAC_LINK_STATE_CHANGE_INT);
-                       writeq(val64, &bar0->mac_rmac_err_mask);
                } else if (flag == DISABLE_INTRS) {
                        /*
                         * Disable MAC Intrs in the general intr mask register
@@ -1484,18 +1788,18 @@ static void en_dis_able_nic_intrs(struct s2io_nic *nic, u16 mask, int flag)
        }
 }
 
-static int check_prc_pcc_state(u64 val64, int flag, int rev_id)
+static int check_prc_pcc_state(u64 val64, int flag, int rev_id, int herc)
 {
        int ret = 0;
 
        if (flag == FALSE) {
-               if (rev_id >= 4) {
+               if ((!herc && (rev_id >= 4)) || herc) {
                        if (!(val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) &&
                            ((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
                             ADAPTER_STATUS_RC_PRC_QUIESCENT)) {
                                ret = 1;
                        }
-               } else {
+               }else {
                        if (!(val64 & ADAPTER_STATUS_RMAC_PCC_FOUR_IDLE) &&
                            ((val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ==
                             ADAPTER_STATUS_RC_PRC_QUIESCENT)) {
@@ -1503,7 +1807,7 @@ static int check_prc_pcc_state(u64 val64, int flag, int rev_id)
                        }
                }
        } else {
-               if (rev_id >= 4) {
+               if ((!herc && (rev_id >= 4)) || herc) {
                        if (((val64 & ADAPTER_STATUS_RMAC_PCC_IDLE) ==
                             ADAPTER_STATUS_RMAC_PCC_IDLE) &&
                            (!(val64 & ADAPTER_STATUS_RC_PRC_QUIESCENT) ||
@@ -1539,10 +1843,11 @@ static int check_prc_pcc_state(u64 val64, int flag, int rev_id)
 
 static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag)
 {
-       int ret = 0;
+       int ret = 0, herc;
        u64 tmp64 = ~((u64) val64);
        int rev_id = get_xena_rev_id(sp->pdev);
 
+       herc = (sp->device_type == XFRAME_II_DEVICE);
        if (!
            (tmp64 &
             (ADAPTER_STATUS_TDMA_READY | ADAPTER_STATUS_RDMA_READY |
@@ -1550,7 +1855,7 @@ static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag)
              ADAPTER_STATUS_PIC_QUIESCENT | ADAPTER_STATUS_MC_DRAM_READY |
              ADAPTER_STATUS_MC_QUEUES_READY | ADAPTER_STATUS_M_PLL_LOCK |
              ADAPTER_STATUS_P_PLL_LOCK))) {
-               ret = check_prc_pcc_state(val64, flag, rev_id);
+               ret = check_prc_pcc_state(val64, flag, rev_id, herc);
        }
 
        return ret;
@@ -1564,7 +1869,7 @@ static int verify_xena_quiescence(nic_t *sp, u64 val64, int flag)
  *
  */
 
-void fix_mac_address(nic_t * sp)
+static void fix_mac_address(nic_t * sp)
 {
        XENA_dev_config_t __iomem *bar0 = sp->bar0;
        u64 val64;
@@ -1609,20 +1914,21 @@ static int start_nic(struct s2io_nic *nic)
                       &bar0->prc_rxd0_n[i]);
 
                val64 = readq(&bar0->prc_ctrl_n[i]);
-#ifndef CONFIG_2BUFF_MODE
-               val64 |= PRC_CTRL_RC_ENABLED;
-#else
-               val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3;
-#endif
+               if (nic->config.bimodal)
+                       val64 |= PRC_CTRL_BIMODAL_INTERRUPT;
+               if (nic->rxd_mode == RXD_MODE_1)
+                       val64 |= PRC_CTRL_RC_ENABLED;
+               else
+                       val64 |= PRC_CTRL_RC_ENABLED | PRC_CTRL_RING_MODE_3;
                writeq(val64, &bar0->prc_ctrl_n[i]);
        }
 
-#ifdef CONFIG_2BUFF_MODE
-       /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */
-       val64 = readq(&bar0->rx_pa_cfg);
-       val64 |= RX_PA_CFG_IGNORE_L2_ERR;
-       writeq(val64, &bar0->rx_pa_cfg);
-#endif
+       if (nic->rxd_mode == RXD_MODE_3B) {
+               /* Enabling 2 buffer mode by writing into Rx_pa_cfg reg. */
+               val64 = readq(&bar0->rx_pa_cfg);
+               val64 |= RX_PA_CFG_IGNORE_L2_ERR;
+               writeq(val64, &bar0->rx_pa_cfg);
+       }
 
        /*
         * Enabling MC-RLDRAM. After enabling the device, we timeout
@@ -1662,9 +1968,14 @@ static int start_nic(struct s2io_nic *nic)
        }
 
        /*  Enable select interrupts */
-       interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR | TX_MAC_INTR |
-           RX_MAC_INTR | MC_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.
@@ -1681,12 +1992,13 @@ static int start_nic(struct s2io_nic *nic)
 
        /* SXE-002: Initialize link and activity LED */
        subid = nic->pdev->subsystem_device;
-       if ((subid & 0xFF) >= 0x07) {
+       if (((subid & 0xFF) >= 0x07) &&
+           (nic->device_type == XFRAME_I_DEVICE)) {
                val64 = readq(&bar0->gpio_control);
                val64 |= 0x0000800000000000ULL;
                writeq(val64, &bar0->gpio_control);
                val64 = 0x0411040400000000ULL;
-               writeq(val64, (void __iomem *) ((u8 *) bar0 + 0x2700));
+               writeq(val64, (void __iomem *)bar0 + 0x2700);
        }
 
        /*
@@ -1697,6 +2009,49 @@ static int start_nic(struct s2io_nic *nic)
 
        return SUCCESS;
 }
+/**
+ * s2io_txdl_getskb - Get the skb from txdl, unmap and return skb
+ */
+static struct sk_buff *s2io_txdl_getskb(fifo_info_t *fifo_data, TxD_t *txdlp, int get_off)
+{
+       nic_t *nic = fifo_data->nic;
+       struct sk_buff *skb;
+       TxD_t *txds;
+       u16 j, frg_cnt;
+
+       txds = txdlp;
+       if (txds->Host_Control == (u64)(long)nic->ufo_in_band_v) {
+               pci_unmap_single(nic->pdev, (dma_addr_t)
+                       txds->Buffer_Pointer, sizeof(u64),
+                       PCI_DMA_TODEVICE);
+               txds++;
+       }
+
+       skb = (struct sk_buff *) ((unsigned long)
+                       txds->Host_Control);
+       if (!skb) {
+               memset(txdlp, 0, (sizeof(TxD_t) * fifo_data->max_txds));
+               return NULL;
+       }
+       pci_unmap_single(nic->pdev, (dma_addr_t)
+                        txds->Buffer_Pointer,
+                        skb->len - skb->data_len,
+                        PCI_DMA_TODEVICE);
+       frg_cnt = skb_shinfo(skb)->nr_frags;
+       if (frg_cnt) {
+               txds++;
+               for (j = 0; j < frg_cnt; j++, txds++) {
+                       skb_frag_t *frag = &skb_shinfo(skb)->frags[j];
+                       if (!txds->Buffer_Pointer)
+                               break;
+                       pci_unmap_page(nic->pdev, (dma_addr_t) 
+                                       txds->Buffer_Pointer,
+                                      frag->size, PCI_DMA_TODEVICE);
+               }
+       }
+       txdlp->Host_Control = 0;
+       return(skb);
+}
 
 /**
  *  free_tx_buffers - Free all queued Tx buffers
@@ -1714,7 +2069,7 @@ static void free_tx_buffers(struct s2io_nic *nic)
        int i, j;
        mac_info_t *mac_control;
        struct config_param *config;
-       int cnt = 0, frg_cnt;
+       int cnt = 0;
 
        mac_control = &nic->mac_control;
        config = &nic->config;
@@ -1723,38 +2078,11 @@ static void free_tx_buffers(struct s2io_nic *nic)
                for (j = 0; j < config->tx_cfg[i].fifo_len - 1; j++) {
                        txdp = (TxD_t *) mac_control->fifos[i].list_info[j].
                            list_virt_addr;
-                       skb =
-                           (struct sk_buff *) ((unsigned long) txdp->
-                                               Host_Control);
-                       if (skb == NULL) {
-                               memset(txdp, 0, sizeof(TxD_t) *
-                                      config->max_txds);
-                               continue;
-                       }
-                       frg_cnt = skb_shinfo(skb)->nr_frags;
-                       pci_unmap_single(nic->pdev, (dma_addr_t)
-                                        txdp->Buffer_Pointer,
-                                        skb->len - skb->data_len,
-                                        PCI_DMA_TODEVICE);
-                       if (frg_cnt) {
-                               TxD_t *temp;
-                               temp = txdp;
-                               txdp++;
-                               for (j = 0; j < frg_cnt; j++, txdp++) {
-                                       skb_frag_t *frag =
-                                           &skb_shinfo(skb)->frags[j];
-                                       pci_unmap_page(nic->pdev,
-                                                      (dma_addr_t)
-                                                      txdp->
-                                                      Buffer_Pointer,
-                                                      frag->size,
-                                                      PCI_DMA_TODEVICE);
-                               }
-                               txdp = temp;
+                       skb = s2io_txdl_getskb(&mac_control->fifos[i], txdp, j);
+                       if (skb) {
+                               dev_kfree_skb(skb);
+                               cnt++;
                        }
-                       dev_kfree_skb(skb);
-                       memset(txdp, 0, sizeof(TxD_t) * config->max_txds);
-                       cnt++;
                }
                DBG_PRINT(INTR_DBG,
                          "%s:forcibly freeing %d skbs on FIFO%d\n",
@@ -1786,8 +2114,9 @@ static void stop_nic(struct s2io_nic *nic)
        config = &nic->config;
 
        /*  Disable all interrupts */
-       interruptible = TX_TRAFFIC_INTR | RX_TRAFFIC_INTR | TX_MAC_INTR |
-           RX_MAC_INTR | MC_INTR;
+       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, DISABLE_INTRS);
 
        /*  Disable PRCs */
@@ -1798,6 +2127,39 @@ static void stop_nic(struct s2io_nic *nic)
        }
 }
 
+int fill_rxd_3buf(nic_t *nic, RxD_t *rxdp, struct sk_buff *skb)
+{
+       struct net_device *dev = nic->dev;
+       struct sk_buff *frag_list;
+       void *tmp;
+
+       /* Buffer-1 receives L3/L4 headers */
+       ((RxD3_t*)rxdp)->Buffer1_ptr = pci_map_single
+                       (nic->pdev, skb->data, l3l4hdr_size + 4,
+                       PCI_DMA_FROMDEVICE);
+
+       /* skb_shinfo(skb)->frag_list will have L4 data payload */
+       skb_shinfo(skb)->frag_list = dev_alloc_skb(dev->mtu + ALIGN_SIZE);
+       if (skb_shinfo(skb)->frag_list == NULL) {
+               DBG_PRINT(ERR_DBG, "%s: dev_alloc_skb failed\n ", dev->name);
+               return -ENOMEM ;
+       }
+       frag_list = skb_shinfo(skb)->frag_list;
+       frag_list->next = NULL;
+       tmp = (void *)ALIGN((long)frag_list->data, ALIGN_SIZE + 1);
+       frag_list->data = tmp;
+       frag_list->tail = tmp;
+
+       /* Buffer-2 receives L4 data payload */
+       ((RxD3_t*)rxdp)->Buffer2_ptr = pci_map_single(nic->pdev,
+                               frag_list->data, dev->mtu,
+                               PCI_DMA_FROMDEVICE);
+       rxdp->Control_2 |= SET_BUFFER1_SIZE_3(l3l4hdr_size + 4);
+       rxdp->Control_2 |= SET_BUFFER2_SIZE_3(dev->mtu);
+
+       return SUCCESS;
+}
+
 /**
  *  fill_rx_buffers - Allocates the Rx side skbs
  *  @nic:  device private variable
@@ -1819,34 +2181,27 @@ static void stop_nic(struct s2io_nic *nic)
  *  SUCCESS on success or an appropriate -ve value on failure.
  */
 
-int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
+static int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
 {
        struct net_device *dev = nic->dev;
        struct sk_buff *skb;
        RxD_t *rxdp;
        int off, off1, size, block_no, block_no1;
-       int offset, offset1;
        u32 alloc_tab = 0;
        u32 alloc_cnt;
        mac_info_t *mac_control;
        struct config_param *config;
-#ifdef CONFIG_2BUFF_MODE
-       RxD_t *rxdpnext;
-       int nextblk;
        u64 tmp;
        buffAdd_t *ba;
-       dma_addr_t rxdpphys;
-#endif
 #ifndef CONFIG_S2IO_NAPI
        unsigned long flags;
 #endif
+       RxD_t *first_rxdp = NULL;
 
        mac_control = &nic->mac_control;
        config = &nic->config;
        alloc_cnt = mac_control->rings[ring_no].pkt_cnt -
            atomic_read(&nic->rx_bufs_left[ring_no]);
-       size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE +
-           HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
 
        while (alloc_tab < alloc_cnt) {
                block_no = mac_control->rings[ring_no].rx_curr_put_info.
@@ -1855,161 +2210,230 @@ int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
                    block_index;
                off = mac_control->rings[ring_no].rx_curr_put_info.offset;
                off1 = mac_control->rings[ring_no].rx_curr_get_info.offset;
-#ifndef CONFIG_2BUFF_MODE
-               offset = block_no * (MAX_RXDS_PER_BLOCK + 1) + off;
-               offset1 = block_no1 * (MAX_RXDS_PER_BLOCK + 1) + off1;
-#else
-               offset = block_no * (MAX_RXDS_PER_BLOCK) + off;
-               offset1 = block_no1 * (MAX_RXDS_PER_BLOCK) + off1;
-#endif
 
-               rxdp = mac_control->rings[ring_no].rx_blocks[block_no].
-                   block_virt_addr + off;
-               if ((offset == offset1) && (rxdp->Host_Control)) {
-                       DBG_PRINT(INTR_DBG, "%s: Get and Put", dev->name);
+               rxdp = mac_control->rings[ring_no].
+                               rx_blocks[block_no].rxds[off].virt_addr;
+
+               if ((block_no == block_no1) && (off == off1) &&
+                                       (rxdp->Host_Control)) {
+                       DBG_PRINT(INTR_DBG, "%s: Get and Put",
+                                 dev->name);
                        DBG_PRINT(INTR_DBG, " info equated\n");
                        goto end;
                }
-#ifndef        CONFIG_2BUFF_MODE
-               if (rxdp->Control_1 == END_OF_BLOCK) {
+               if (off && (off == rxd_count[nic->rxd_mode])) {
                        mac_control->rings[ring_no].rx_curr_put_info.
                            block_index++;
+                       if (mac_control->rings[ring_no].rx_curr_put_info.
+                           block_index == mac_control->rings[ring_no].
+                                       block_count)
+                               mac_control->rings[ring_no].rx_curr_put_info.
+                                       block_index = 0;
+                       block_no = mac_control->rings[ring_no].
+                                       rx_curr_put_info.block_index;
+                       if (off == rxd_count[nic->rxd_mode])
+                               off = 0;
                        mac_control->rings[ring_no].rx_curr_put_info.
-                           block_index %= mac_control->rings[ring_no].block_count;
-                       block_no = mac_control->rings[ring_no].rx_curr_put_info.
-                               block_index;
-                       off++;
-                       off %= (MAX_RXDS_PER_BLOCK + 1);
-                       mac_control->rings[ring_no].rx_curr_put_info.offset =
-                           off;
-                       rxdp = (RxD_t *) ((unsigned long) rxdp->Control_2);
+                               offset = off;
+                       rxdp = mac_control->rings[ring_no].
+                               rx_blocks[block_no].block_virt_addr;
                        DBG_PRINT(INTR_DBG, "%s: Next block at: %p\n",
                                  dev->name, rxdp);
                }
 #ifndef CONFIG_S2IO_NAPI
                spin_lock_irqsave(&nic->put_lock, flags);
                mac_control->rings[ring_no].put_pos =
-                   (block_no * (MAX_RXDS_PER_BLOCK + 1)) + off;
-               spin_unlock_irqrestore(&nic->put_lock, flags);
-#endif
-#else
-               if (rxdp->Host_Control == END_OF_BLOCK) {
-                       mac_control->rings[ring_no].rx_curr_put_info.
-                           block_index++;
-                       mac_control->rings[ring_no].rx_curr_put_info.block_index
-                           %= mac_control->rings[ring_no].block_count;
-                       block_no = mac_control->rings[ring_no].rx_curr_put_info
-                           .block_index;
-                       off = 0;
-                       DBG_PRINT(INTR_DBG, "%s: block%d at: 0x%llx\n",
-                                 dev->name, block_no,
-                                 (unsigned long long) rxdp->Control_1);
-                       mac_control->rings[ring_no].rx_curr_put_info.offset =
-                           off;
-                       rxdp = mac_control->rings[ring_no].rx_blocks[block_no].
-                           block_virt_addr;
-               }
-#ifndef CONFIG_S2IO_NAPI
-               spin_lock_irqsave(&nic->put_lock, flags);
-               mac_control->rings[ring_no].put_pos = (block_no *
-                                        (MAX_RXDS_PER_BLOCK + 1)) + off;
+                   (block_no * (rxd_count[nic->rxd_mode] + 1)) + off;
                spin_unlock_irqrestore(&nic->put_lock, flags);
 #endif
-#endif
-
-#ifndef        CONFIG_2BUFF_MODE
-               if (rxdp->Control_1 & RXD_OWN_XENA)
-#else
-               if (rxdp->Control_2 & BIT(0))
-#endif
-               {
+               if ((rxdp->Control_1 & RXD_OWN_XENA) &&
+                       ((nic->rxd_mode >= RXD_MODE_3A) &&
+                               (rxdp->Control_2 & BIT(0)))) {
                        mac_control->rings[ring_no].rx_curr_put_info.
-                           offset = off;
+                                       offset = off;
                        goto end;
                }
-#ifdef CONFIG_2BUFF_MODE
-               /*
-                * RxDs Spanning cache lines will be replenished only
-                * if the succeeding RxD is also owned by Host. It
-                * will always be the ((8*i)+3) and ((8*i)+6)
-                * descriptors for the 48 byte descriptor. The offending
-                * decsriptor is of-course the 3rd descriptor.
-                */
-               rxdpphys = mac_control->rings[ring_no].rx_blocks[block_no].
-                   block_dma_addr + (off * sizeof(RxD_t));
-               if (((u64) (rxdpphys)) % 128 > 80) {
-                       rxdpnext = mac_control->rings[ring_no].rx_blocks[block_no].
-                           block_virt_addr + (off + 1);
-                       if (rxdpnext->Host_Control == END_OF_BLOCK) {
-                               nextblk = (block_no + 1) %
-                                   (mac_control->rings[ring_no].block_count);
-                               rxdpnext = mac_control->rings[ring_no].rx_blocks
-                                   [nextblk].block_virt_addr;
+               /* calculate size of skb based on ring mode */
+               size = dev->mtu + HEADER_ETHERNET_II_802_3_SIZE +
+                               HEADER_802_2_SIZE + HEADER_SNAP_SIZE;
+               if (nic->rxd_mode == RXD_MODE_1)
+                       size += NET_IP_ALIGN;
+               else if (nic->rxd_mode == RXD_MODE_3B)
+                       size = dev->mtu + ALIGN_SIZE + BUF0_LEN + 4;
+               else
+                       size = l3l4hdr_size + ALIGN_SIZE + BUF0_LEN + 4;
+
+               /* allocate skb */
+               skb = dev_alloc_skb(size);
+               if(!skb) {
+                       DBG_PRINT(ERR_DBG, "%s: Out of ", dev->name);
+                       DBG_PRINT(ERR_DBG, "memory to allocate SKBs\n");
+                       if (first_rxdp) {
+                               wmb();
+                               first_rxdp->Control_1 |= RXD_OWN_XENA;
                        }
-                       if (rxdpnext->Control_2 & BIT(0))
-                               goto end;
+                       return -ENOMEM ;
                }
-#endif
+               if (nic->rxd_mode == RXD_MODE_1) {
+                       /* 1 buffer mode - normal operation mode */
+                       memset(rxdp, 0, sizeof(RxD1_t));
+                       skb_reserve(skb, NET_IP_ALIGN);
+                       ((RxD1_t*)rxdp)->Buffer0_ptr = pci_map_single
+                           (nic->pdev, skb->data, size, PCI_DMA_FROMDEVICE);
+                       rxdp->Control_2 &= (~MASK_BUFFER0_SIZE_1);
+                       rxdp->Control_2 |= SET_BUFFER0_SIZE_1(size);
+
+               } else if (nic->rxd_mode >= RXD_MODE_3A) {
+                       /*
+                        * 2 or 3 buffer mode -
+                        * Both 2 buffer mode and 3 buffer mode provides 128
+                        * byte aligned receive buffers.
+                        *
+                        * 3 buffer mode provides header separation where in
+                        * skb->data will have L3/L4 headers where as
+                        * skb_shinfo(skb)->frag_list will have the L4 data
+                        * payload
+                        */
 
-#ifndef        CONFIG_2BUFF_MODE
-               skb = dev_alloc_skb(size + NET_IP_ALIGN);
-#else
-               skb = dev_alloc_skb(dev->mtu + ALIGN_SIZE + BUF0_LEN + 4);
-#endif
-               if (!skb) {
-                       DBG_PRINT(ERR_DBG, "%s: Out of ", dev->name);
-                       DBG_PRINT(ERR_DBG, "memory to allocate SKBs\n");
-                       return -ENOMEM;
+                       memset(rxdp, 0, sizeof(RxD3_t));
+                       ba = &mac_control->rings[ring_no].ba[block_no][off];
+                       skb_reserve(skb, BUF0_LEN);
+                       tmp = (u64)(unsigned long) skb->data;
+                       tmp += ALIGN_SIZE;
+                       tmp &= ~ALIGN_SIZE;
+                       skb->data = (void *) (unsigned long)tmp;
+                       skb->tail = (void *) (unsigned long)tmp;
+
+                       ((RxD3_t*)rxdp)->Buffer0_ptr =
+                           pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN,
+                                          PCI_DMA_FROMDEVICE);
+                       rxdp->Control_2 = SET_BUFFER0_SIZE_3(BUF0_LEN);
+                       if (nic->rxd_mode == RXD_MODE_3B) {
+                               /* Two buffer mode */
+
+                               /*
+                                * Buffer2 will have L3/L4 header plus 
+                                * L4 payload
+                                */
+                               ((RxD3_t*)rxdp)->Buffer2_ptr = pci_map_single
+                               (nic->pdev, skb->data, dev->mtu + 4,
+                                               PCI_DMA_FROMDEVICE);
+
+                               /* Buffer-1 will be dummy buffer not used */
+                               ((RxD3_t*)rxdp)->Buffer1_ptr =
+                               pci_map_single(nic->pdev, ba->ba_1, BUF1_LEN,
+                                       PCI_DMA_FROMDEVICE);
+                               rxdp->Control_2 |= SET_BUFFER1_SIZE_3(1);
+                               rxdp->Control_2 |= SET_BUFFER2_SIZE_3
+                                                               (dev->mtu + 4);
+                       } else {
+                               /* 3 buffer mode */
+                               if (fill_rxd_3buf(nic, rxdp, skb) == -ENOMEM) {
+                                       dev_kfree_skb_irq(skb);
+                                       if (first_rxdp) {
+                                               wmb();
+                                               first_rxdp->Control_1 |=
+                                                       RXD_OWN_XENA;
+                                       }
+                                       return -ENOMEM ;
+                               }
+                       }
+                       rxdp->Control_2 |= BIT(0);
                }
-#ifndef        CONFIG_2BUFF_MODE
-               skb_reserve(skb, NET_IP_ALIGN);
-               memset(rxdp, 0, sizeof(RxD_t));
-               rxdp->Buffer0_ptr = pci_map_single
-                   (nic->pdev, skb->data, size, PCI_DMA_FROMDEVICE);
-               rxdp->Control_2 &= (~MASK_BUFFER0_SIZE);
-               rxdp->Control_2 |= SET_BUFFER0_SIZE(size);
                rxdp->Host_Control = (unsigned long) (skb);
-               rxdp->Control_1 |= RXD_OWN_XENA;
-               off++;
-               off %= (MAX_RXDS_PER_BLOCK + 1);
-               mac_control->rings[ring_no].rx_curr_put_info.offset = off;
-#else
-               ba = &mac_control->rings[ring_no].ba[block_no][off];
-               skb_reserve(skb, BUF0_LEN);
-               tmp = ((unsigned long) skb->data & ALIGN_SIZE);
-               if (tmp)
-                       skb_reserve(skb, (ALIGN_SIZE + 1) - tmp);
-
-               memset(rxdp, 0, sizeof(RxD_t));
-               rxdp->Buffer2_ptr = pci_map_single
-                   (nic->pdev, skb->data, dev->mtu + BUF0_LEN + 4,
-                    PCI_DMA_FROMDEVICE);
-               rxdp->Buffer0_ptr =
-                   pci_map_single(nic->pdev, ba->ba_0, BUF0_LEN,
-                                  PCI_DMA_FROMDEVICE);
-               rxdp->Buffer1_ptr =
-                   pci_map_single(nic->pdev, ba->ba_1, BUF1_LEN,
-                                  PCI_DMA_FROMDEVICE);
-
-               rxdp->Control_2 = SET_BUFFER2_SIZE(dev->mtu + 4);
-               rxdp->Control_2 |= SET_BUFFER0_SIZE(BUF0_LEN);
-               rxdp->Control_2 |= SET_BUFFER1_SIZE(1); /* dummy. */
-               rxdp->Control_2 |= BIT(0);      /* Set Buffer_Empty bit. */
-               rxdp->Host_Control = (u64) ((unsigned long) (skb));
-               rxdp->Control_1 |= RXD_OWN_XENA;
+               if (alloc_tab & ((1 << rxsync_frequency) - 1))
+                       rxdp->Control_1 |= RXD_OWN_XENA;
                off++;
+               if (off == (rxd_count[nic->rxd_mode] + 1))
+                       off = 0;
                mac_control->rings[ring_no].rx_curr_put_info.offset = off;
-#endif
-               rxdp->Control_2 |= SET_RXD_MARKER;
 
+               rxdp->Control_2 |= SET_RXD_MARKER;
+               if (!(alloc_tab & ((1 << rxsync_frequency) - 1))) {
+                       if (first_rxdp) {
+                               wmb();
+                               first_rxdp->Control_1 |= RXD_OWN_XENA;
+                       }
+                       first_rxdp = rxdp;
+               }
                atomic_inc(&nic->rx_bufs_left[ring_no]);
                alloc_tab++;
        }
 
       end:
+       /* Transfer ownership of first descriptor to adapter just before
+        * exiting. Before that, use memory barrier so that ownership
+        * and other fields are seen by adapter correctly.
+        */
+       if (first_rxdp) {
+               wmb();
+               first_rxdp->Control_1 |= RXD_OWN_XENA;
+       }
+
        return SUCCESS;
 }
 
+static void free_rxd_blk(struct s2io_nic *sp, int ring_no, int blk)
+{
+       struct net_device *dev = sp->dev;
+       int j;
+       struct sk_buff *skb;
+       RxD_t *rxdp;
+       mac_info_t *mac_control;
+       buffAdd_t *ba;
+
+       mac_control = &sp->mac_control;
+       for (j = 0 ; j < rxd_count[sp->rxd_mode]; j++) {
+               rxdp = mac_control->rings[ring_no].
+                                rx_blocks[blk].rxds[j].virt_addr;
+               skb = (struct sk_buff *)
+                       ((unsigned long) rxdp->Host_Control);
+               if (!skb) {
+                       continue;
+               }
+               if (sp->rxd_mode == RXD_MODE_1) {
+                       pci_unmap_single(sp->pdev, (dma_addr_t)
+                                ((RxD1_t*)rxdp)->Buffer0_ptr,
+                                dev->mtu +
+                                HEADER_ETHERNET_II_802_3_SIZE
+                                + HEADER_802_2_SIZE +
+                                HEADER_SNAP_SIZE,
+                                PCI_DMA_FROMDEVICE);
+                       memset(rxdp, 0, sizeof(RxD1_t));
+               } else if(sp->rxd_mode == RXD_MODE_3B) {
+                       ba = &mac_control->rings[ring_no].
+                               ba[blk][j];
+                       pci_unmap_single(sp->pdev, (dma_addr_t)
+                                ((RxD3_t*)rxdp)->Buffer0_ptr,
+                                BUF0_LEN,
+                                PCI_DMA_FROMDEVICE);
+                       pci_unmap_single(sp->pdev, (dma_addr_t)
+                                ((RxD3_t*)rxdp)->Buffer1_ptr,
+                                BUF1_LEN,
+                                PCI_DMA_FROMDEVICE);
+                       pci_unmap_single(sp->pdev, (dma_addr_t)
+                                ((RxD3_t*)rxdp)->Buffer2_ptr,
+                                dev->mtu + 4,
+                                PCI_DMA_FROMDEVICE);
+                       memset(rxdp, 0, sizeof(RxD3_t));
+               } else {
+                       pci_unmap_single(sp->pdev, (dma_addr_t)
+                               ((RxD3_t*)rxdp)->Buffer0_ptr, BUF0_LEN,
+                               PCI_DMA_FROMDEVICE);
+                       pci_unmap_single(sp->pdev, (dma_addr_t)
+                               ((RxD3_t*)rxdp)->Buffer1_ptr, 
+                               l3l4hdr_size + 4,
+                               PCI_DMA_FROMDEVICE);
+                       pci_unmap_single(sp->pdev, (dma_addr_t)
+                               ((RxD3_t*)rxdp)->Buffer2_ptr, dev->mtu,
+                               PCI_DMA_FROMDEVICE);
+                       memset(rxdp, 0, sizeof(RxD3_t));
+               }
+               dev_kfree_skb(skb);
+               atomic_dec(&sp->rx_bufs_left[ring_no]);
+       }
+}
+
 /**
  *  free_rx_buffers - Frees all Rx buffers
  *  @sp: device private variable.
@@ -2022,77 +2446,17 @@ int fill_rx_buffers(struct s2io_nic *nic, int ring_no)
 static void free_rx_buffers(struct s2io_nic *sp)
 {
        struct net_device *dev = sp->dev;
-       int i, j, blk = 0, off, buf_cnt = 0;
-       RxD_t *rxdp;
-       struct sk_buff *skb;
+       int i, blk = 0, buf_cnt = 0;
        mac_info_t *mac_control;
        struct config_param *config;
-#ifdef CONFIG_2BUFF_MODE
-       buffAdd_t *ba;
-#endif
 
        mac_control = &sp->mac_control;
        config = &sp->config;
 
        for (i = 0; i < config->rx_ring_num; i++) {
-               for (j = 0, blk = 0; j < config->rx_cfg[i].num_rxd; j++) {
-                       off = j % (MAX_RXDS_PER_BLOCK + 1);
-                       rxdp = mac_control->rings[i].rx_blocks[blk].
-                               block_virt_addr + off;
-
-#ifndef CONFIG_2BUFF_MODE
-                       if (rxdp->Control_1 == END_OF_BLOCK) {
-                               rxdp =
-                                   (RxD_t *) ((unsigned long) rxdp->
-                                              Control_2);
-                               j++;
-                               blk++;
-                       }
-#else
-                       if (rxdp->Host_Control == END_OF_BLOCK) {
-                               blk++;
-                               continue;
-                       }
-#endif
-
-                       if (!(rxdp->Control_1 & RXD_OWN_XENA)) {
-                               memset(rxdp, 0, sizeof(RxD_t));
-                               continue;
-                       }
+               for (blk = 0; blk < rx_ring_sz[i]; blk++)
+                       free_rxd_blk(sp,i,blk);
 
-                       skb =
-                           (struct sk_buff *) ((unsigned long) rxdp->
-                                               Host_Control);
-                       if (skb) {
-#ifndef CONFIG_2BUFF_MODE
-                               pci_unmap_single(sp->pdev, (dma_addr_t)
-                                                rxdp->Buffer0_ptr,
-                                                dev->mtu +
-                                                HEADER_ETHERNET_II_802_3_SIZE
-                                                + HEADER_802_2_SIZE +
-                                                HEADER_SNAP_SIZE,
-                                                PCI_DMA_FROMDEVICE);
-#else
-                               ba = &mac_control->rings[i].ba[blk][off];
-                               pci_unmap_single(sp->pdev, (dma_addr_t)
-                                                rxdp->Buffer0_ptr,
-                                                BUF0_LEN,
-                                                PCI_DMA_FROMDEVICE);
-                               pci_unmap_single(sp->pdev, (dma_addr_t)
-                                                rxdp->Buffer1_ptr,
-                                                BUF1_LEN,
-                                                PCI_DMA_FROMDEVICE);
-                               pci_unmap_single(sp->pdev, (dma_addr_t)
-                                                rxdp->Buffer2_ptr,
-                                                dev->mtu + BUF0_LEN + 4,
-                                                PCI_DMA_FROMDEVICE);
-#endif
-                               dev_kfree_skb(skb);
-                               atomic_dec(&sp->rx_bufs_left[i]);
-                               buf_cnt++;
-                       }
-                       memset(rxdp, 0, sizeof(RxD_t));
-               }
                mac_control->rings[i].rx_curr_put_info.block_index = 0;
                mac_control->rings[i].rx_curr_get_info.block_index = 0;
                mac_control->rings[i].rx_curr_put_info.offset = 0;
@@ -2123,7 +2487,7 @@ 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;
 
@@ -2198,7 +2562,7 @@ static void rx_intr_handler(ring_info_t *ring_data)
 {
        nic_t *nic = ring_data->nic;
        struct net_device *dev = (struct net_device *) nic->dev;
-       int get_block, get_offset, put_block, put_offset, ring_bufs;
+       int get_block, put_block, put_offset;
        rx_curr_get_info_t get_info, put_info;
        RxD_t *rxdp;
        struct sk_buff *skb;
@@ -2207,30 +2571,32 @@ 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;
        get_block = get_info.block_index;
        put_info = ring_data->rx_curr_put_info;
        put_block = put_info.block_index;
-       ring_bufs = get_info.ring_len+1;
-       rxdp = ring_data->rx_blocks[get_block].block_virt_addr +
-                   get_info.offset;
-       get_offset = (get_block * (MAX_RXDS_PER_BLOCK + 1)) +
-               get_info.offset;
+       rxdp = ring_data->rx_blocks[get_block].rxds[get_info.offset].virt_addr;
 #ifndef CONFIG_S2IO_NAPI
        spin_lock(&nic->put_lock);
        put_offset = ring_data->put_pos;
        spin_unlock(&nic->put_lock);
 #else
-       put_offset = (put_block * (MAX_RXDS_PER_BLOCK + 1)) +
+       put_offset = (put_block * (rxd_count[nic->rxd_mode] + 1)) +
                put_info.offset;
 #endif
-       while (RXD_IS_UP2DT(rxdp) &&
-              (((get_offset + 1) % ring_bufs) != put_offset)) {
+       while (RXD_IS_UP2DT(rxdp)) {
+               /* If your are next to put index then it's FIFO full condition */
+               if ((get_block == put_block) &&
+                   (get_info.offset + 1) == put_info.offset) {
+                       DBG_PRINT(ERR_DBG, "%s: Ring Full\n",dev->name);
+                       break;
+               }
                skb = (struct sk_buff *) ((unsigned long)rxdp->Host_Control);
                if (skb == NULL) {
                        DBG_PRINT(ERR_DBG, "%s: The skb is ",
@@ -2239,46 +2605,52 @@ static void rx_intr_handler(ring_info_t *ring_data)
                        spin_unlock(&nic->rx_lock);
                        return;
                }
-#ifndef CONFIG_2BUFF_MODE
-               pci_unmap_single(nic->pdev, (dma_addr_t)
-                                rxdp->Buffer0_ptr,
+               if (nic->rxd_mode == RXD_MODE_1) {
+                       pci_unmap_single(nic->pdev, (dma_addr_t)
+                                ((RxD1_t*)rxdp)->Buffer0_ptr,
                                 dev->mtu +
                                 HEADER_ETHERNET_II_802_3_SIZE +
                                 HEADER_802_2_SIZE +
                                 HEADER_SNAP_SIZE,
                                 PCI_DMA_FROMDEVICE);
-#else
-               pci_unmap_single(nic->pdev, (dma_addr_t)
-                                rxdp->Buffer0_ptr,
+               } else if (nic->rxd_mode == RXD_MODE_3B) {
+                       pci_unmap_single(nic->pdev, (dma_addr_t)
+                                ((RxD3_t*)rxdp)->Buffer0_ptr,
                                 BUF0_LEN, PCI_DMA_FROMDEVICE);
-               pci_unmap_single(nic->pdev, (dma_addr_t)
-                                rxdp->Buffer1_ptr,
+                       pci_unmap_single(nic->pdev, (dma_addr_t)
+                                ((RxD3_t*)rxdp)->Buffer1_ptr,
                                 BUF1_LEN, PCI_DMA_FROMDEVICE);
-               pci_unmap_single(nic->pdev, (dma_addr_t)
-                                rxdp->Buffer2_ptr,
-                                dev->mtu + BUF0_LEN + 4,
+                       pci_unmap_single(nic->pdev, (dma_addr_t)
+                                ((RxD3_t*)rxdp)->Buffer2_ptr,
+                                dev->mtu + 4,
                                 PCI_DMA_FROMDEVICE);
-#endif
+               } else {
+                       pci_unmap_single(nic->pdev, (dma_addr_t)
+                                        ((RxD3_t*)rxdp)->Buffer0_ptr, BUF0_LEN,
+                                        PCI_DMA_FROMDEVICE);
+                       pci_unmap_single(nic->pdev, (dma_addr_t)
+                                        ((RxD3_t*)rxdp)->Buffer1_ptr,
+                                        l3l4hdr_size + 4,
+                                        PCI_DMA_FROMDEVICE);
+                       pci_unmap_single(nic->pdev, (dma_addr_t)
+                                        ((RxD3_t*)rxdp)->Buffer2_ptr,
+                                        dev->mtu, PCI_DMA_FROMDEVICE);
+               }
                rx_osm_handler(ring_data, rxdp);
                get_info.offset++;
-               ring_data->rx_curr_get_info.offset =
-                   get_info.offset;
-               rxdp = ring_data->rx_blocks[get_block].block_virt_addr +
-                   get_info.offset;
-               if (get_info.offset &&
-                   (!(get_info.offset % MAX_RXDS_PER_BLOCK))) {
+               ring_data->rx_curr_get_info.offset = get_info.offset;
+               rxdp = ring_data->rx_blocks[get_block].
+                               rxds[get_info.offset].virt_addr;
+               if (get_info.offset == rxd_count[nic->rxd_mode]) {
                        get_info.offset = 0;
-                       ring_data->rx_curr_get_info.offset
-                           = get_info.offset;
+                       ring_data->rx_curr_get_info.offset = get_info.offset;
                        get_block++;
-                       get_block %= ring_data->block_count;
-                       ring_data->rx_curr_get_info.block_index
-                           = get_block;
+                       if (get_block == ring_data->block_count)
+                               get_block = 0;
+                       ring_data->rx_curr_get_info.block_index = get_block;
                        rxdp = ring_data->rx_blocks[get_block].block_virt_addr;
                }
 
-               get_offset = (get_block * (MAX_RXDS_PER_BLOCK + 1)) +
-                           get_info.offset;
 #ifdef CONFIG_S2IO_NAPI
                nic->pkts_to_process -= 1;
                if (!nic->pkts_to_process)
@@ -2311,7 +2683,6 @@ static void tx_intr_handler(fifo_info_t *fifo_data)
        tx_curr_get_info_t get_info, put_info;
        struct sk_buff *skb;
        TxD_t *txdlp;
-       u16 j, frg_cnt;
 
        get_info = fifo_data->tx_curr_get_info;
        put_info = fifo_data->tx_curr_put_info;
@@ -2324,12 +2695,17 @@ 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)
-                               txdlp->Host_Control);
+               skb = s2io_txdl_getskb(fifo_data, txdlp, get_info.offset);
                if (skb == NULL) {
                        DBG_PRINT(ERR_DBG, "%s: Null skb ",
                        __FUNCTION__);
@@ -2337,32 +2713,6 @@ static void tx_intr_handler(fifo_info_t *fifo_data)
                        return;
                }
 
-               frg_cnt = skb_shinfo(skb)->nr_frags;
-               nic->tx_pkt_count++;
-
-               pci_unmap_single(nic->pdev, (dma_addr_t)
-                                txdlp->Buffer_Pointer,
-                                skb->len - skb->data_len,
-                                PCI_DMA_TODEVICE);
-               if (frg_cnt) {
-                       TxD_t *temp;
-                       temp = txdlp;
-                       txdlp++;
-                       for (j = 0; j < frg_cnt; j++, txdlp++) {
-                               skb_frag_t *frag =
-                                   &skb_shinfo(skb)->frags[j];
-                               pci_unmap_page(nic->pdev,
-                                              (dma_addr_t)
-                                              txdlp->
-                                              Buffer_Pointer,
-                                              frag->size,
-                                              PCI_DMA_TODEVICE);
-                       }
-                       txdlp = temp;
-               }
-               memset(txdlp, 0,
-                      (sizeof(TxD_t) * fifo_data->max_txds));
-
                /* Updating the statistics block */
                nic->stats.tx_bytes += skb->len;
                dev_kfree_skb_irq(skb);
@@ -2400,10 +2750,12 @@ static void alarm_intr_handler(struct s2io_nic *nic)
        register u64 val64 = 0, err_reg = 0;
 
        /* Handling link status change error Intr */
-       err_reg = readq(&bar0->mac_rmac_err_reg);
-       writeq(err_reg, &bar0->mac_rmac_err_reg);
-       if (err_reg & RMAC_LINK_STATE_CHANGE_INT) {
-               schedule_work(&nic->set_link_task);
+       if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
+               err_reg = readq(&bar0->mac_rmac_err_reg);
+               writeq(err_reg, &bar0->mac_rmac_err_reg);
+               if (err_reg & RMAC_LINK_STATE_CHANGE_INT) {
+                       schedule_work(&nic->set_link_task);
+               }
        }
 
        /* Handling Ecc errors */
@@ -2413,11 +2765,17 @@ 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");
-                       netif_stop_queue(dev);
-                       schedule_work(&nic->rst_timer_task);
+                       DBG_PRINT(INIT_DBG, "double ECC error!!\n");
+                       if (nic->device_type != XFRAME_II_DEVICE) {
+                               /* 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.
                                single_ecc_errs++;
@@ -2428,7 +2786,8 @@ 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);
        }
@@ -2463,7 +2822,7 @@ static void alarm_intr_handler(struct s2io_nic *nic)
  *   SUCCESS on success and FAILURE on failure.
  */
 
-int wait_for_cmd_complete(nic_t * sp)
+static int wait_for_cmd_complete(nic_t * sp)
 {
        XENA_dev_config_t __iomem *bar0 = sp->bar0;
        int ret = FAILURE, cnt = 0;
@@ -2499,6 +2858,9 @@ void s2io_reset(nic_t * sp)
        u64 val64;
        u16 subid, pci_cmd;
 
+       /* Back up  the PCI-X CMD reg, dont want to lose MMRBC, OST settings */
+       pci_read_config_word(sp->pdev, PCIX_COMMAND_REGISTER, &(pci_cmd));
+
        val64 = SW_RESET_ALL;
        writeq(val64, &bar0->sw_reset);
 
@@ -2516,9 +2878,10 @@ void s2io_reset(nic_t * sp)
         */
        msleep(250);
 
-       /* Restore the PCI state saved during initializarion. */
+       /* Restore the PCI state saved during initialization. */
        pci_restore_state(sp->pdev);
-
+       pci_write_config_word(sp->pdev, PCIX_COMMAND_REGISTER,
+                                    pci_cmd);
        s2io_init_pci(sp);
 
        msleep(250);
@@ -2526,29 +2889,42 @@ 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 */
-       pci_read_config_word(sp->pdev, PCI_COMMAND, &pci_cmd);
-       pci_cmd &= 0x7FFF; /* Clear parity err detect bit */
-       pci_write_config_word(sp->pdev, PCI_COMMAND, pci_cmd);
+       if (sp->device_type == XFRAME_II_DEVICE) {
+               /* Clear parity err detect bit */
+               pci_write_config_word(sp->pdev, PCI_STATUS, 0x8000);
 
-       val64 = readq(&bar0->txpic_int_reg);
-       val64 &= ~BIT(62); /* Clearing PCI_STATUS error reflected here */
-       writeq(val64, &bar0->txpic_int_reg);
+               /* Clearing PCIX Ecc status register */
+               pci_write_config_dword(sp->pdev, 0x68, 0x7C);
 
-       /* Clearing PCIX Ecc status register */
-       pci_write_config_dword(sp->pdev, 0x68, 0);
+               /* Clearing PCI_STATUS error reflected here */
+               writeq(BIT(62), &bar0->txpic_int_reg);
+       }
 
        /* Reset device statistics maintained by OS */
        memset(&sp->stats, 0, sizeof (struct net_device_stats));
 
        /* SXE-002: Configure link and activity LED to turn it off */
        subid = sp->pdev->subsystem_device;
-       if ((subid & 0xFF) >= 0x07) {
+       if (((subid & 0xFF) >= 0x07) &&
+           (sp->device_type == XFRAME_I_DEVICE)) {
                val64 = readq(&bar0->gpio_control);
                val64 |= 0x0000800000000000ULL;
                writeq(val64, &bar0->gpio_control);
                val64 = 0x0411040400000000ULL;
-               writeq(val64, (void __iomem *) ((u8 *) bar0 + 0x2700));
+               writeq(val64, (void __iomem *)bar0 + 0x2700);
+       }
+
+       /*
+        * Clear spurious ECC interrupts that would have occured on
+        * XFRAME II cards after reset.
+        */
+       if (sp->device_type == XFRAME_II_DEVICE) {
+               val64 = readq(&bar0->pcc_err_reg);
+               writeq(val64, &bar0->pcc_err_reg);
        }
 
        sp->device_enabled_once = FALSE;
@@ -2645,8 +3021,9 @@ 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
        /*
@@ -2667,8 +3044,9 @@ 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);
@@ -2690,6 +3068,201 @@ int s2io_set_swapper(nic_t * sp)
        return SUCCESS;
 }
 
+static int wait_for_msix_trans(nic_t *nic, int i)
+{
+       XENA_dev_config_t __iomem *bar0 = 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 __iomem *bar0 = 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;
+               }
+       }
+}
+
+static void store_xmsi_data(nic_t *nic)
+{
+       XENA_dev_config_t __iomem *bar0 = 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 __iomem *bar0 = 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 __iomem *bar0 = 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 *
  * ********************************************************* */
@@ -2706,17 +3279,19 @@ int s2io_set_swapper(nic_t * sp)
  *   file on failure.
  */
 
-int s2io_open(struct net_device *dev)
+static 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
         * Nic is initialized
         */
        netif_carrier_off(dev);
-       sp->last_link_state = 0; /* Unkown link state */
+       sp->last_link_state = 0;
 
        /* Initialize H/W and enable interrupts */
        if (s2io_card_up(sp)) {
@@ -2726,13 +3301,55 @@ 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, 
+                                   (unsigned long long)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, 
+                                    (unsigned long long)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) {
@@ -2745,11 +3362,37 @@ 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;
 }
 
@@ -2766,15 +3409,38 @@ hw_init_failed:
  *  file on failure.
  */
 
-int s2io_close(struct net_device *dev)
+static 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;
 }
@@ -2792,7 +3458,7 @@ int s2io_close(struct net_device *dev)
  *  0 on success & 1 on failure.
  */
 
-int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
+static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
 {
        nic_t *sp = dev->priv;
        u16 frg_cnt, frg_len, i, queue, queue_len, put_off, get_off;
@@ -2803,6 +3469,8 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
 #ifdef NETIF_F_TSO
        int mss;
 #endif
+       u16 vlan_tag = 0;
+       int vlan_priority = 0;
        mac_info_t *mac_control;
        struct config_param *config;
 
@@ -2821,6 +3489,13 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
 
        queue = 0;
 
+       /* Get Fifo number to Transmit based on vlan priority */
+       if (sp->vlgrp && vlan_tx_tag_present(skb)) {
+               vlan_tag = vlan_tx_tag_get(skb);
+               vlan_priority = vlan_tag >> 13;
+               queue = config->fifo_mapping[vlan_priority];
+       }
+
        put_off = (u16) mac_control->fifos[queue].tx_curr_put_info.offset;
        get_off = (u16) mac_control->fifos[queue].tx_curr_get_info.offset;
        txdp = (TxD_t *) mac_control->fifos[queue].list_info[put_off].
@@ -2829,12 +3504,23 @@ 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);
                return 0;
        }
+
+       /* A buffer with no data will be dropped */
+       if (!skb->len) {
+               DBG_PRINT(TX_DBG, "%s:Buffer has no data..\n", dev->name);
+               dev_kfree_skb(skb);
+               spin_unlock_irqrestore(&sp->tx_lock, flags);
+               return 0;
+       }
+
+       txdp->Control_1 = 0;
+       txdp->Control_2 = 0;
 #ifdef NETIF_F_TSO
        mss = skb_shinfo(skb)->tso_size;
        if (mss) {
@@ -2842,42 +3528,77 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
                txdp->Control_1 |= TXD_TCP_LSO_MSS(mss);
        }
 #endif
-
-       frg_cnt = skb_shinfo(skb)->nr_frags;
-       frg_len = skb->len - skb->data_len;
-
-       txdp->Buffer_Pointer = pci_map_single
-           (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE);
-       txdp->Host_Control = (unsigned long) skb;
        if (skb->ip_summed == CHECKSUM_HW) {
                txdp->Control_2 |=
                    (TXD_TX_CKO_IPV4_EN | TXD_TX_CKO_TCP_EN |
                     TXD_TX_CKO_UDP_EN);
        }
-
+       txdp->Control_1 |= TXD_GATHER_CODE_FIRST;
+       txdp->Control_1 |= TXD_LIST_OWN_XENA;
        txdp->Control_2 |= config->tx_intr_type;
 
-       txdp->Control_1 |= (TXD_BUFFER0_SIZE(frg_len) |
-                           TXD_GATHER_CODE_FIRST);
-       txdp->Control_1 |= TXD_LIST_OWN_XENA;
+       if (sp->vlgrp && vlan_tx_tag_present(skb)) {
+               txdp->Control_2 |= TXD_VLAN_ENABLE;
+               txdp->Control_2 |= TXD_VLAN_TAG(vlan_tag);
+       }
+
+       frg_len = skb->len - skb->data_len;
+       if (skb_shinfo(skb)->ufo_size) {
+               int ufo_size;
+
+               ufo_size = skb_shinfo(skb)->ufo_size;
+               ufo_size &= ~7;
+               txdp->Control_1 |= TXD_UFO_EN;
+               txdp->Control_1 |= TXD_UFO_MSS(ufo_size);
+               txdp->Control_1 |= TXD_BUFFER0_SIZE(8);
+#ifdef __BIG_ENDIAN
+               sp->ufo_in_band_v[put_off] =
+                               (u64)skb_shinfo(skb)->ip6_frag_id;
+#else
+               sp->ufo_in_band_v[put_off] =
+                               (u64)skb_shinfo(skb)->ip6_frag_id << 32;
+#endif
+               txdp->Host_Control = (unsigned long)sp->ufo_in_band_v;
+               txdp->Buffer_Pointer = pci_map_single(sp->pdev,
+                                       sp->ufo_in_band_v,
+                                       sizeof(u64), PCI_DMA_TODEVICE);
+               txdp++;
+               txdp->Control_1 = 0;
+               txdp->Control_2 = 0;
+       }
+
+       txdp->Buffer_Pointer = pci_map_single
+           (sp->pdev, skb->data, frg_len, PCI_DMA_TODEVICE);
+       txdp->Host_Control = (unsigned long) skb;
+       txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
+
+       if (skb_shinfo(skb)->ufo_size)
+               txdp->Control_1 |= TXD_UFO_EN;
 
+       frg_cnt = skb_shinfo(skb)->nr_frags;
        /* For fragmented SKB. */
        for (i = 0; i < frg_cnt; i++) {
                skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+               /* A '0' length fragment will be ignored */
+               if (!frag->size)
+                       continue;
                txdp++;
                txdp->Buffer_Pointer = (u64) pci_map_page
                    (sp->pdev, frag->page, frag->page_offset,
                     frag->size, PCI_DMA_TODEVICE);
                txdp->Control_1 |= TXD_BUFFER0_SIZE(frag->size);
+               if (skb_shinfo(skb)->ufo_size)
+                       txdp->Control_1 |= TXD_UFO_EN;
        }
        txdp->Control_1 |= TXD_GATHER_CODE_LAST;
 
+       if (skb_shinfo(skb)->ufo_size)
+               frg_cnt++; /* as Txd0 was used for inband header */
+
        tx_fifo = mac_control->tx_FIFO_start[queue];
        val64 = mac_control->fifos[queue].list_info[put_off].list_phy_addr;
        writeq(val64, &tx_fifo->TxDL_Pointer);
 
-       wmb();
-
        val64 = (TX_FIFO_LAST_TXD_NUM(frg_cnt) | TX_FIFO_FIRST_LIST |
                 TX_FIFO_LAST_LIST);
 
@@ -2885,8 +3606,12 @@ int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
        if (mss)
                val64 |= TX_FIFO_SPECIAL_FUNC;
 #endif
+       if (skb_shinfo(skb)->ufo_size)
+               val64 |= TX_FIFO_SPECIAL_FUNC;
        writeq(val64, &tx_fifo->List_Control);
 
+       mmiowb();
+
        put_off++;
        put_off %= mac_control->fifos[queue].tx_curr_put_info.fifo_len + 1;
        mac_control->fifos[queue].tx_curr_put_info.offset = put_off;
@@ -2914,6 +3639,151 @@ 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 __iomem *bar0 = sp->bar0;
+       u64 val64;
+
+       val64 = readq(&bar0->pic_int_status);
+       if (val64 & PIC_INT_GPIO) {
+               val64 = readq(&bar0->gpio_int_reg);
+               if ((val64 & GPIO_INT_REG_LINK_DOWN) &&
+                   (val64 & GPIO_INT_REG_LINK_UP)) {
+                       val64 |=  GPIO_INT_REG_LINK_DOWN;
+                       val64 |= GPIO_INT_REG_LINK_UP;
+                       writeq(val64, &bar0->gpio_int_reg);
+                       goto masking;
+               }
+
+               if (((sp->last_link_state == LINK_UP) &&
+                       (val64 & GPIO_INT_REG_LINK_DOWN)) ||
+               ((sp->last_link_state == LINK_DOWN) &&
+               (val64 & GPIO_INT_REG_LINK_UP))) {
+                       val64 = readq(&bar0->gpio_int_mask);
+                       val64 |=  GPIO_INT_MASK_LINK_DOWN;
+                       val64 |= GPIO_INT_MASK_LINK_UP;
+                       writeq(val64, &bar0->gpio_int_mask);
+                       s2io_set_link((unsigned long)sp);
+               }
+masking:
+               if (sp->last_link_state == LINK_UP) {
+                       /*enable down interrupt */
+                       val64 = readq(&bar0->gpio_int_mask);
+                       /* unmasks link down intr */
+                       val64 &=  ~GPIO_INT_MASK_LINK_DOWN;
+                       /* masks link up intr */
+                       val64 |= GPIO_INT_MASK_LINK_UP;
+                       writeq(val64, &bar0->gpio_int_mask);
+               } else {
+                       /*enable UP Interrupt */
+                       val64 = readq(&bar0->gpio_int_mask);
+                       /* unmasks link up interrupt */
+                       val64 &= ~GPIO_INT_MASK_LINK_UP;
+                       /* masks link down interrupt */
+                       val64 |=  GPIO_INT_MASK_LINK_DOWN;
+                       writeq(val64, &bar0->gpio_int_mask);
+               }
+       }
+}
+
 /**
  *  s2io_isr - ISR handler of the device .
  *  @irq: the irq of the device.
@@ -2996,6 +3866,8 @@ static irqreturn_t s2io_isr(int irq, void *dev_id, struct pt_regs *regs)
                        tx_intr_handler(&mac_control->fifos[i]);
        }
 
+       if (reason & GEN_INTR_TXPIC)
+               s2io_txpic_intr_handle(sp);
        /*
         * If the Rx buffer count is below the panic threshold then
         * reallocate the buffers from the interrupt handler itself,
@@ -3065,7 +3937,7 @@ static void s2io_updt_stats(nic_t *sp)
  *  pointer to the updated net_device_stats structure.
  */
 
-struct net_device_stats *s2io_get_stats(struct net_device *dev)
+static struct net_device_stats *s2io_get_stats(struct net_device *dev)
 {
        nic_t *sp = dev->priv;
        mac_info_t *mac_control;
@@ -3161,7 +4033,7 @@ 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 */
@@ -3176,7 +4048,7 @@ 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);
        }
 
@@ -3365,11 +4237,10 @@ 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;
@@ -3424,7 +4295,8 @@ static void s2io_phy_id(unsigned long data)
        u16 subid;
 
        subid = sp->pdev->subsystem_device;
-       if ((subid & 0xFF) >= 0x07) {
+       if ((sp->device_type == XFRAME_II_DEVICE) ||
+                  ((subid & 0xFF) >= 0x07)) {
                val64 = readq(&bar0->gpio_control);
                val64 ^= GPIO_CTRL_GPIO_0;
                writeq(val64, &bar0->gpio_control);
@@ -3461,7 +4333,8 @@ static int s2io_ethtool_idnic(struct net_device *dev, u32 data)
 
        subid = sp->pdev->subsystem_device;
        last_gpio_ctrl_val = readq(&bar0->gpio_control);
-       if ((subid & 0xFF) < 0x07) {
+       if ((sp->device_type == XFRAME_I_DEVICE) &&
+               ((subid & 0xFF) < 0x07)) {
                val64 = readq(&bar0->adapter_control);
                if (!(val64 & ADAPTER_CNTL_EN)) {
                        printk(KERN_ERR
@@ -3481,7 +4354,7 @@ static int s2io_ethtool_idnic(struct net_device *dev, u32 data)
                msleep_interruptible(MAX_FLICKER_TIME);
        del_timer_sync(&sp->id_timer);
 
-       if (CARDS_WITH_FAULTY_LINK_INDICATORS(subid)) {
+       if (CARDS_WITH_FAULTY_LINK_INDICATORS(sp->device_type, subid)) {
                writeq(last_gpio_ctrl_val, &bar0->gpio_control);
                last_gpio_ctrl_val = readq(&bar0->gpio_control);
        }
@@ -3563,29 +4436,53 @@ 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;
 }
 
@@ -3604,28 +4501,53 @@ 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++;
+               }
+       }
+
+       if (sp->device_type == XFRAME_II_DEVICE) {
+               int write_cnt = (cnt == 8) ? 0 : cnt;
+               writeq(SPI_DATA_WRITE(data,(cnt<<3)), &bar0->spi_data);
 
-       while (exit_cnt < 5) {
-               val64 = readq(&bar0->i2c_control);
-               if (I2C_CONTROL_CNTL_END(val64)) {
-                       if (!(val64 & I2C_CONTROL_NACK))
+               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;
 }
 
@@ -3645,7 +4567,8 @@ 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);
@@ -3683,7 +4606,7 @@ 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))) {
@@ -3731,7 +4654,7 @@ 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);
@@ -3747,7 +4670,11 @@ 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");
        }
@@ -3775,7 +4702,7 @@ static int s2io_register_test(nic_t * sp, uint64_t * data)
        }
 
        *data = fail;
-       return 0;
+       return fail;
 }
 
 /**
@@ -3794,58 +4721,89 @@ 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, (unsigned long long)0x12345,
+                       (unsigned long long)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, (unsigned long long)0x12345,
+                       (unsigned long long)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;
 }
 
 /**
@@ -3927,7 +4885,7 @@ 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;
@@ -3935,7 +4893,7 @@ 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;
@@ -3963,17 +4921,12 @@ 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);
@@ -3985,11 +4938,8 @@ 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);
@@ -4002,18 +4952,18 @@ 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;
 }
 
 /**
@@ -4095,63 +5045,111 @@ static void s2io_get_ethtool_stats(struct net_device *dev,
        StatInfo_t *stat_info = sp->mac_control.stats_info;
 
        s2io_updt_stats(sp);
-       tmp_stats[i++] = le32_to_cpu(stat_info->tmac_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->tmac_data_octets);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->tmac_frms_oflow) << 32  |
+               le32_to_cpu(stat_info->tmac_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->tmac_data_octets_oflow) << 32 |
+               le32_to_cpu(stat_info->tmac_data_octets);
        tmp_stats[i++] = le64_to_cpu(stat_info->tmac_drop_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->tmac_mcst_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->tmac_bcst_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->tmac_mcst_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->tmac_mcst_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->tmac_bcst_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->tmac_bcst_frms);
        tmp_stats[i++] = le64_to_cpu(stat_info->tmac_pause_ctrl_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->tmac_any_err_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->tmac_any_err_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->tmac_any_err_frms);
        tmp_stats[i++] = le64_to_cpu(stat_info->tmac_vld_ip_octets);
-       tmp_stats[i++] = le32_to_cpu(stat_info->tmac_vld_ip);
-       tmp_stats[i++] = le32_to_cpu(stat_info->tmac_drop_ip);
-       tmp_stats[i++] = le32_to_cpu(stat_info->tmac_icmp);
-       tmp_stats[i++] = le32_to_cpu(stat_info->tmac_rst_tcp);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->tmac_vld_ip_oflow) << 32 |
+               le32_to_cpu(stat_info->tmac_vld_ip);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->tmac_drop_ip_oflow) << 32 |
+               le32_to_cpu(stat_info->tmac_drop_ip);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->tmac_icmp_oflow) << 32 |
+               le32_to_cpu(stat_info->tmac_icmp);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->tmac_rst_tcp_oflow) << 32 |
+               le32_to_cpu(stat_info->tmac_rst_tcp);
        tmp_stats[i++] = le64_to_cpu(stat_info->tmac_tcp);
-       tmp_stats[i++] = le32_to_cpu(stat_info->tmac_udp);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_vld_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_data_octets);
+       tmp_stats[i++] = (u64)le32_to_cpu(stat_info->tmac_udp_oflow) << 32 |
+               le32_to_cpu(stat_info->tmac_udp);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_vld_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_vld_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_data_octets_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_data_octets);
        tmp_stats[i++] = le64_to_cpu(stat_info->rmac_fcs_err_frms);
        tmp_stats[i++] = le64_to_cpu(stat_info->rmac_drop_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_vld_mcst_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_vld_bcst_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_vld_mcst_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_vld_mcst_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_vld_bcst_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_vld_bcst_frms);
        tmp_stats[i++] = le32_to_cpu(stat_info->rmac_in_rng_len_err_frms);
        tmp_stats[i++] = le64_to_cpu(stat_info->rmac_long_frms);
        tmp_stats[i++] = le64_to_cpu(stat_info->rmac_pause_ctrl_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_discarded_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_usized_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_osized_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_frag_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_jabber_frms);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_ip);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_discarded_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_discarded_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_usized_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_usized_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_osized_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_osized_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_frag_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_frag_frms);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_jabber_frms_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_jabber_frms);
+       tmp_stats[i++] = (u64)le32_to_cpu(stat_info->rmac_ip_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_ip);
        tmp_stats[i++] = le64_to_cpu(stat_info->rmac_ip_octets);
        tmp_stats[i++] = le32_to_cpu(stat_info->rmac_hdr_err_ip);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_drop_ip);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_icmp);
+       tmp_stats[i++] = (u64)le32_to_cpu(stat_info->rmac_drop_ip_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_drop_ip);
+       tmp_stats[i++] = (u64)le32_to_cpu(stat_info->rmac_icmp_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_icmp);
        tmp_stats[i++] = le64_to_cpu(stat_info->rmac_tcp);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_udp);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_err_drp_udp);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_pause_cnt);
-       tmp_stats[i++] = le32_to_cpu(stat_info->rmac_accepted_ip);
+       tmp_stats[i++] = (u64)le32_to_cpu(stat_info->rmac_udp_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_udp);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_err_drp_udp_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_err_drp_udp);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_pause_cnt_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_pause_cnt);
+       tmp_stats[i++] =
+               (u64)le32_to_cpu(stat_info->rmac_accepted_ip_oflow) << 32 |
+               le32_to_cpu(stat_info->rmac_accepted_ip);
        tmp_stats[i++] = le32_to_cpu(stat_info->rmac_err_tcp);
        tmp_stats[i++] = 0;
        tmp_stats[i++] = stat_info->sw_stat.single_ecc_errs;
        tmp_stats[i++] = stat_info->sw_stat.double_ecc_errs;
 }
 
-int s2io_ethtool_get_regs_len(struct net_device *dev)
+static int s2io_ethtool_get_regs_len(struct net_device *dev)
 {
        return (XENA_REG_SPACE);
 }
 
 
-u32 s2io_ethtool_get_rx_csum(struct net_device * dev)
+static u32 s2io_ethtool_get_rx_csum(struct net_device * dev)
 {
        nic_t *sp = dev->priv;
 
        return (sp->rx_csum);
 }
-int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data)
+
+static int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data)
 {
        nic_t *sp = dev->priv;
 
@@ -4162,17 +5160,19 @@ int s2io_ethtool_set_rx_csum(struct net_device *dev, u32 data)
 
        return 0;
 }
-int s2io_get_eeprom_len(struct net_device *dev)
+
+static int s2io_get_eeprom_len(struct net_device *dev)
 {
        return (XENA_EEPROM_SPACE);
 }
 
-int s2io_ethtool_self_test_count(struct net_device *dev)
+static int s2io_ethtool_self_test_count(struct net_device *dev)
 {
        return (S2IO_TEST_LEN);
 }
-void s2io_ethtool_get_strings(struct net_device *dev,
-                             u32 stringset, u8 * data)
+
+static void s2io_ethtool_get_strings(struct net_device *dev,
+                                    u32 stringset, u8 * data)
 {
        switch (stringset) {
        case ETH_SS_TEST:
@@ -4188,7 +5188,7 @@ static int s2io_ethtool_get_stats_count(struct net_device *dev)
        return (S2IO_STAT_LEN);
 }
 
-int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
+static int s2io_ethtool_op_set_tx_csum(struct net_device *dev, u32 data)
 {
        if (data)
                dev->features |= NETIF_F_IP_CSUM;
@@ -4221,6 +5221,8 @@ static struct ethtool_ops netdev_ethtool_ops = {
        .get_tso = ethtool_op_get_tso,
        .set_tso = ethtool_op_set_tso,
 #endif
+       .get_ufo = ethtool_op_get_ufo,
+       .set_ufo = ethtool_op_set_ufo,
        .self_test_count = s2io_ethtool_self_test_count,
        .self_test = s2io_ethtool_test,
        .get_strings = s2io_ethtool_get_strings,
@@ -4241,7 +5243,7 @@ static struct ethtool_ops netdev_ethtool_ops = {
  *  function always return EOPNOTSUPPORTED
  */
 
-int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+static int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
        return -EOPNOTSUPP;
 }
@@ -4257,7 +5259,7 @@ int s2io_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
  *   file on failure.
  */
 
-int s2io_change_mtu(struct net_device *dev, int new_mtu)
+static int s2io_change_mtu(struct net_device *dev, int new_mtu)
 {
        nic_t *sp = dev->priv;
 
@@ -4350,11 +5352,13 @@ static void s2io_set_link(unsigned long data)
        }
 
        subid = nic->pdev->subsystem_device;
-       /*
-        * Allow a small delay for the NICs self initiated
-        * cleanup to complete.
-        */
-       msleep(100);
+       if (s2io_link_fault_indication(nic) == MAC_RMAC_ERR_TIMER) {
+               /*
+                * Allow a small delay for the NICs self initiated
+                * cleanup to complete.
+                */
+               msleep(100);
+       }
 
        val64 = readq(&bar0->adapter_status);
        if (verify_xena_quiescence(nic, val64, nic->device_enabled_once)) {
@@ -4362,7 +5366,8 @@ static void s2io_set_link(unsigned long data)
                        val64 = readq(&bar0->adapter_control);
                        val64 |= ADAPTER_CNTL_EN;
                        writeq(val64, &bar0->adapter_control);
-                       if (CARDS_WITH_FAULTY_LINK_INDICATORS(subid)) {
+                       if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
+                                                            subid)) {
                                val64 = readq(&bar0->gpio_control);
                                val64 |= GPIO_CTRL_GPIO_0;
                                writeq(val64, &bar0->gpio_control);
@@ -4371,20 +5376,24 @@ static void s2io_set_link(unsigned long data)
                                val64 |= ADAPTER_LED_ON;
                                writeq(val64, &bar0->adapter_control);
                        }
-                       val64 = readq(&bar0->adapter_status);
-                       if (!LINK_IS_UP(val64)) {
-                               DBG_PRINT(ERR_DBG, "%s:", dev->name);
-                               DBG_PRINT(ERR_DBG, " Link down");
-                               DBG_PRINT(ERR_DBG, "after ");
-                               DBG_PRINT(ERR_DBG, "enabling ");
-                               DBG_PRINT(ERR_DBG, "device \n");
+                       if (s2io_link_fault_indication(nic) ==
+                                               MAC_RMAC_ERR_TIMER) {
+                               val64 = readq(&bar0->adapter_status);
+                               if (!LINK_IS_UP(val64)) {
+                                       DBG_PRINT(ERR_DBG, "%s:", dev->name);
+                                       DBG_PRINT(ERR_DBG, " Link down");
+                                       DBG_PRINT(ERR_DBG, "after ");
+                                       DBG_PRINT(ERR_DBG, "enabling ");
+                                       DBG_PRINT(ERR_DBG, "device \n");
+                               }
                        }
                        if (nic->device_enabled_once == FALSE) {
                                nic->device_enabled_once = TRUE;
                        }
                        s2io_link(nic, LINK_UP);
                } else {
-                       if (CARDS_WITH_FAULTY_LINK_INDICATORS(subid)) {
+                       if (CARDS_WITH_FAULTY_LINK_INDICATORS(nic->device_type,
+                                                             subid)) {
                                val64 = readq(&bar0->gpio_control);
                                val64 &= ~GPIO_CTRL_GPIO_0;
                                writeq(val64, &bar0->gpio_control);
@@ -4463,7 +5472,7 @@ 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;
@@ -4475,6 +5484,15 @@ 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
@@ -4589,16 +5607,7 @@ static int rx_osm_handler(ring_info_t *ring_data, RxD_t * rxdp)
                ((unsigned long) rxdp->Host_Control);
        int ring_no = ring_data->ring_no;
        u16 l3_csum, l4_csum;
-#ifdef CONFIG_2BUFF_MODE
-       int buf0_len = RXD_GET_BUFFER0_SIZE(rxdp->Control_2);
-       int buf2_len = RXD_GET_BUFFER2_SIZE(rxdp->Control_2);
-       int get_block = ring_data->rx_curr_get_info.block_index;
-       int get_off = ring_data->rx_curr_get_info.offset;
-       buffAdd_t *ba = &ring_data->ba[get_block][get_off];
-       unsigned char *buff;
-#else
-       u16 len = (u16) ((RXD_GET_BUFFER0_SIZE(rxdp->Control_2)) >> 48);;
-#endif
+
        skb->dev = dev;
        if (rxdp->Control_1 & RXD_T_CODE) {
                unsigned long long err = rxdp->Control_1 & RXD_T_CODE;
@@ -4615,19 +5624,36 @@ static int rx_osm_handler(ring_info_t *ring_data, RxD_t * rxdp)
        rxdp->Host_Control = 0;
        sp->rx_pkt_count++;
        sp->stats.rx_packets++;
-#ifndef CONFIG_2BUFF_MODE
-       sp->stats.rx_bytes += len;
-#else
-       sp->stats.rx_bytes += buf0_len + buf2_len;
-#endif
+       if (sp->rxd_mode == RXD_MODE_1) {
+               int len = RXD_GET_BUFFER0_SIZE_1(rxdp->Control_2);
 
-#ifndef CONFIG_2BUFF_MODE
-       skb_put(skb, len);
-#else
-       buff = skb_push(skb, buf0_len);
-       memcpy(buff, ba->ba_0, buf0_len);
-       skb_put(skb, buf2_len);
-#endif
+               sp->stats.rx_bytes += len;
+               skb_put(skb, len);
+
+       } else if (sp->rxd_mode >= RXD_MODE_3A) {
+               int get_block = ring_data->rx_curr_get_info.block_index;
+               int get_off = ring_data->rx_curr_get_info.offset;
+               int buf0_len = RXD_GET_BUFFER0_SIZE_3(rxdp->Control_2);
+               int buf2_len = RXD_GET_BUFFER2_SIZE_3(rxdp->Control_2);
+               unsigned char *buff = skb_push(skb, buf0_len);
+
+               buffAdd_t *ba = &ring_data->ba[get_block][get_off];
+               sp->stats.rx_bytes += buf0_len + buf2_len;
+               memcpy(buff, ba->ba_0, buf0_len);
+
+               if (sp->rxd_mode == RXD_MODE_3A) {
+                       int buf1_len = RXD_GET_BUFFER1_SIZE_3(rxdp->Control_2);
+
+                       skb_put(skb, buf1_len);
+                       skb->len += buf2_len;
+                       skb->data_len += buf2_len;
+                       skb->truesize += buf2_len;
+                       skb_put(skb_shinfo(skb)->frag_list, buf2_len);
+                       sp->stats.rx_bytes += buf1_len;
+
+               } else
+                       skb_put(skb, buf2_len);
+       }
 
        if ((rxdp->Control_1 & TCP_OR_UDP_FRAME) &&
            (sp->rx_csum)) {
@@ -4653,9 +5679,21 @@ static int rx_osm_handler(ring_info_t *ring_data, RxD_t * rxdp)
 
        skb->protocol = eth_type_trans(skb, dev);
 #ifdef CONFIG_S2IO_NAPI
-       netif_receive_skb(skb);
+       if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) {
+               /* Queueing the vlan frame to the upper layer */
+               vlan_hwaccel_receive_skb(skb, sp->vlgrp,
+                       RXD_GET_VLAN_TAG(rxdp->Control_2));
+       } else {
+               netif_receive_skb(skb);
+       }
 #else
-       netif_rx(skb);
+       if (sp->vlgrp && RXD_GET_VLAN_TAG(rxdp->Control_2)) {
+               /* Queueing the vlan frame to the upper layer */
+               vlan_hwaccel_rx(skb, sp->vlgrp,
+                       RXD_GET_VLAN_TAG(rxdp->Control_2));
+       } else {
+               netif_rx(skb);
+       }
 #endif
        dev->last_rx = jiffies;
        atomic_dec(&sp->rx_bufs_left[ring_no]);
@@ -4747,8 +5785,11 @@ 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(rx_ring_mode, int, 0);
 module_param_array(tx_fifo_len, uint, NULL, 0);
 module_param_array(rx_ring_sz, uint, NULL, 0);
 module_param_array(rts_frm_len, uint, NULL, 0);
@@ -4759,9 +5800,13 @@ module_param(mc_pause_threshold_q4q7, int, 0);
 module_param(shared_splits, int, 0);
 module_param(tmac_util_period, int, 0);
 module_param(rmac_util_period, int, 0);
+module_param(bimodal, bool, 0);
+module_param(l3l4hdr_size, int , 0);
 #ifndef CONFIG_S2IO_NAPI
 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 .
@@ -4790,9 +5835,17 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        u16 subid;
        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))) {
@@ -4819,10 +5872,35 @@ 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));
@@ -4845,7 +5923,22 @@ 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;
+       if (rx_ring_mode == 1)
+               sp->rxd_mode = RXD_MODE_1;
+       if (rx_ring_mode == 2)
+               sp->rxd_mode = RXD_MODE_3B;
+       if (rx_ring_mode == 3)
+               sp->rxd_mode = RXD_MODE_3A;
+
+       sp->intr_type = dev_intr_type;
+
+       if ((pdev->device == PCI_DEVICE_ID_HERC_WIN) ||
+               (pdev->device == PCI_DEVICE_ID_HERC_UNI))
+               sp->device_type = XFRAME_II_DEVICE;
+       else
+               sp->device_type = XFRAME_I_DEVICE;
 
+               
        /* Initialize some PCI/PCI-X fields of the NIC. */
        s2io_init_pci(sp);
 
@@ -4860,7 +5953,8 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        config = &sp->config;
 
        /* Tx side parameters. */
-       tx_fifo_len[0] = DEFAULT_FIFO_LEN;      /* Default value. */
+       if (tx_fifo_len[0] == 0)
+               tx_fifo_len[0] = DEFAULT_FIFO_LEN; /* Default value. */
        config->tx_fifo_num = tx_fifo_num;
        for (i = 0; i < MAX_TX_FIFOS; i++) {
                config->tx_cfg[i].fifo_len = tx_fifo_len[i];
@@ -4880,14 +5974,16 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
                        break;
                }
        }
-       config->max_txds = MAX_SKB_FRAGS;
+       /* + 2 because one Txd for skb->data and one Txd for UFO */
+       config->max_txds = MAX_SKB_FRAGS + 2;
 
        /* Rx side parameters. */
-       rx_ring_sz[0] = SMALL_BLK_CNT;  /* Default value. */
+       if (rx_ring_sz[0] == 0)
+               rx_ring_sz[0] = SMALL_BLK_CNT; /* Default value. */
        config->rx_ring_num = rx_ring_num;
        for (i = 0; i < MAX_RX_RINGS; i++) {
                config->rx_cfg[i].num_rxd = rx_ring_sz[i] *
-                   (MAX_RXDS_PER_BLOCK + 1);
+                   (rxd_count[sp->rxd_mode] + 1);
                config->rx_cfg[i].ring_priority = i;
        }
 
@@ -4913,7 +6009,7 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        /*  initialize the shared memory used by the NIC and the host */
        if (init_shared_mem(sp)) {
                DBG_PRINT(ERR_DBG, "%s: Memory allocation failed\n",
-                         dev->name);
+                         __FUNCTION__);
                ret = -ENOMEM;
                goto mem_alloc_failed;
        }
@@ -4954,6 +6050,9 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        dev->do_ioctl = &s2io_ioctl;
        dev->change_mtu = &s2io_change_mtu;
        SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
+       dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
+       dev->vlan_rx_register = s2io_vlan_rx_register;
+       dev->vlan_rx_kill_vid = (void *)s2io_vlan_rx_kill_vid;
 
        /*
         * will use eth_mac_addr() for  dev->set_mac_address
@@ -4970,6 +6069,10 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
 #ifdef NETIF_F_TSO
        dev->features |= NETIF_F_TSO;
 #endif
+       if (sp->device_type & XFRAME_II_DEVICE) {
+               dev->features |= NETIF_F_UFO;
+               dev->features |= NETIF_F_HW_CSUM;
+       }
 
        dev->tx_timeout = &s2io_tx_watchdog;
        dev->watchdog_timeo = WATCH_DOG_TIMEOUT;
@@ -4988,12 +6091,26 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
                goto set_swap_failed;
        }
 
-       /*
-        * Fix for all "FFs" MAC address problems observed on
-        * Alpha platforms
-        */
-       fix_mac_address(sp);
-       s2io_reset(sp);
+       /* Verify if the Herc works on the slot its placed into */
+       if (sp->device_type & XFRAME_II_DEVICE) {
+               mode = s2io_verify_pci_mode(sp);
+               if (mode < 0) {
+                       DBG_PRINT(ERR_DBG, "%s: ", __FUNCTION__);
+                       DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode\n");
+                       ret = -EBADSLT;
+                       goto set_swap_failed;
+               }
+       }
+
+       /* Not needed for Herc */
+       if (sp->device_type & XFRAME_I_DEVICE) {
+               /*
+                * Fix for all "FFs" MAC address problems observed on
+                * Alpha platforms
+                */
+               fix_mac_address(sp);
+               s2io_reset(sp);
+       }
 
        /*
         * MAC address initialization.
@@ -5018,22 +6135,13 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
        sp->def_mac_addr[0].mac_addr[5] = (u8) (mac_down >> 16);
        sp->def_mac_addr[0].mac_addr[4] = (u8) (mac_down >> 24);
 
-       DBG_PRINT(INIT_DBG,
-                 "DEFAULT MAC ADDR:0x%02x-%02x-%02x-%02x-%02x-%02x\n",
-                 sp->def_mac_addr[0].mac_addr[0],
-                 sp->def_mac_addr[0].mac_addr[1],
-                 sp->def_mac_addr[0].mac_addr[2],
-                 sp->def_mac_addr[0].mac_addr[3],
-                 sp->def_mac_addr[0].mac_addr[4],
-                 sp->def_mac_addr[0].mac_addr[5]);
-
        /*  Set the factory defined MAC address initially   */
        dev->addr_len = ETH_ALEN;
        memcpy(dev->dev_addr, sp->def_mac_addr, ETH_ALEN);
 
        /*
         * Initialize the tasklet status and link state flags
-        * and the card statte parameter
+        * and the card state parameter
         */
        atomic_set(&(sp->card_state), 0);
        sp->tasklet_status = 0;
@@ -5068,9 +6176,85 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre)
                goto register_failed;
        }
 
+       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), Version %s",
+                               get_xena_rev_id(sp->pdev),
+                               s2io_driver_version);
+               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],
+                         sp->def_mac_addr[0].mac_addr[2],
+                         sp->def_mac_addr[0].mac_addr[3],
+                         sp->def_mac_addr[0].mac_addr[4],
+                         sp->def_mac_addr[0].mac_addr[5]);
+               mode = s2io_print_pci_mode(sp);
+               if (mode < 0) {
+                       DBG_PRINT(ERR_DBG, " Unsupported PCI bus mode ");
+                       ret = -EBADSLT;
+                       goto set_swap_failed;
+               }
+       } else {
+               DBG_PRINT(ERR_DBG, "%s: Neterion Xframe I 10GbE adapter ",
+                         dev->name);
+               DBG_PRINT(ERR_DBG, "(rev %d), Version %s",
+                                       get_xena_rev_id(sp->pdev),
+                                       s2io_driver_version);
+               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],
+                         sp->def_mac_addr[0].mac_addr[2],
+                         sp->def_mac_addr[0].mac_addr[3],
+                         sp->def_mac_addr[0].mac_addr[4],
+                         sp->def_mac_addr[0].mac_addr[5]);
+       }
+       if (sp->rxd_mode == RXD_MODE_3B)
+               DBG_PRINT(ERR_DBG, "%s: 2-Buffer mode support has been "
+                         "enabled\n",dev->name);
+       if (sp->rxd_mode == RXD_MODE_3A)
+               DBG_PRINT(ERR_DBG, "%s: 3-Buffer mode support has been "
+                         "enabled\n",dev->name);
+
        /* Initialize device name */
        strcpy(sp->name, dev->name);
-       strcat(sp->name, ": Neterion Xframe I 10GbE adapter");
+       if (sp->device_type & XFRAME_II_DEVICE)
+               strcat(sp->name, ": Neterion Xframe II 10GbE adapter");
+       else
+               strcat(sp->name, ": Neterion Xframe I 10GbE adapter");
+
+       /* Initialize bimodal Interrupts */
+       sp->config.bimodal = bimodal;
+       if (!(sp->device_type & XFRAME_II_DEVICE) && bimodal) {
+               sp->config.bimodal = 0;
+               DBG_PRINT(ERR_DBG,"%s:Bimodal intr not supported by Xframe I\n",
+                       dev->name);
+       }
 
        /*
         * Make Link state as off at this point, when the Link change
@@ -5090,7 +6274,14 @@ 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);
 
@@ -5124,7 +6315,14 @@ 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);
 }