Add NetXen 1G/10G ethernet driver.

Signed-off-by: Amit S. Kale <amitkale@netxen.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 936 insertions, 0 deletions

diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
new file mode 100644
index 000000000000..c7d97054d05c
--- /dev/null
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -0,0 +1,936 @@
+/*
+ * Copyright (C) 2003 - 2006 NetXen, Inc.
+ * All rights reserved.
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *                            
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *                                   
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA  02111-1307, USA.
+ * 
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.
+ * 
+ * Contact Information:
+ *    info@netxen.com
+ * NetXen,
+ * 3965 Freedom Circle, Fourth floor,
+ * Santa Clara, CA 95054
+ *
+ *
+ * Source file for NIC routines to access the Phantom hardware
+ *
+ */
+
+#include "netxen_nic.h"
+#include "netxen_nic_hw.h"
+#include "netxen_nic_phan_reg.h"
+
+/*  PCI Windowing for DDR regions.  */
+
+#define ADDR_IN_RANGE(addr, low, high)  \
+        (((addr) <= (high)) && ((addr) >= (low)))
+
+#define NETXEN_FLASH_BASE       (BOOTLD_START)
+#define NETXEN_PHANTOM_MEM_BASE (NETXEN_FLASH_BASE)
+#define NETXEN_MAX_MTU          8000
+#define NETXEN_MIN_MTU          64
+#define NETXEN_ETH_FCS_SIZE     4
+#define NETXEN_ENET_HEADER_SIZE 14
+#define NETXEN_WINDOW_ONE 0x2000000     /* CRB Window: bit 25 of CRB address */
+#define NETXEN_FIRMWARE_LEN     ((16 * 1024) / 4)
+#define NETXEN_NIU_HDRSIZE      (0x1 << 6)
+#define NETXEN_NIU_TLRSIZE      (0x1 << 5)
+
+unsigned long netxen_nic_pci_set_window(void __iomem * pci_base,
+                                        unsigned long long addr);
+void netxen_free_hw_resources(struct netxen_adapter *adapter);
+
+int netxen_nic_set_mac(struct net_device *netdev, void *p)
+{
+        struct netxen_port *port = netdev_priv(netdev);
+        struct netxen_adapter *adapter = port->adapter;
+        struct sockaddr *addr = p;
+
+        if (netif_running(netdev))
+                return -EBUSY;
+
+        if (!is_valid_ether_addr(addr->sa_data))
+                return -EADDRNOTAVAIL;
+
+        DPRINTK(INFO, "valid ether addr\n");
+        memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+
+        if (adapter->ops->macaddr_set)
+                adapter->ops->macaddr_set(port, addr->sa_data);
+
+        return 0;
+}
+
+/*
+ * netxen_nic_set_multi - Multicast
+ */
+void netxen_nic_set_multi(struct net_device *netdev)
+{
+        struct netxen_port *port = netdev_priv(netdev);
+        struct netxen_adapter *adapter = port->adapter;
+        struct dev_mc_list *mc_ptr;
+        __le32 netxen_mac_addr_cntl_data = 0;
+
+        mc_ptr = netdev->mc_list;
+        if (netdev->flags & IFF_PROMISC) {
+                if (adapter->ops->set_promisc)
+                        adapter->ops->set_promisc(adapter,
+                                                  port->portnum,
+                                                  NETXEN_NIU_PROMISC_MODE);
+        } else {
+                if (adapter->ops->unset_promisc)
+                        adapter->ops->unset_promisc(adapter,
+                                                    port->portnum,
+                                                    NETXEN_NIU_NON_PROMISC_MODE);
+        }
+        if (adapter->ahw.board_type == NETXEN_NIC_XGBE) {
+                netxen_nic_mcr_set_mode_select(netxen_mac_addr_cntl_data, 0x03);
+                netxen_nic_mcr_set_id_pool0(netxen_mac_addr_cntl_data, 0x00);
+                netxen_nic_mcr_set_id_pool1(netxen_mac_addr_cntl_data, 0x00);
+                netxen_nic_mcr_set_id_pool2(netxen_mac_addr_cntl_data, 0x00);
+                netxen_nic_mcr_set_id_pool3(netxen_mac_addr_cntl_data, 0x00);
+                netxen_nic_mcr_set_enable_xtnd0(netxen_mac_addr_cntl_data);
+                netxen_nic_mcr_set_enable_xtnd1(netxen_mac_addr_cntl_data);
+                netxen_nic_mcr_set_enable_xtnd2(netxen_mac_addr_cntl_data);
+                netxen_nic_mcr_set_enable_xtnd3(netxen_mac_addr_cntl_data);
+        } else {
+                netxen_nic_mcr_set_mode_select(netxen_mac_addr_cntl_data, 0x00);
+                netxen_nic_mcr_set_id_pool0(netxen_mac_addr_cntl_data, 0x00);
+                netxen_nic_mcr_set_id_pool1(netxen_mac_addr_cntl_data, 0x01);
+                netxen_nic_mcr_set_id_pool2(netxen_mac_addr_cntl_data, 0x02);
+                netxen_nic_mcr_set_id_pool3(netxen_mac_addr_cntl_data, 0x03);
+        }
+        writel(netxen_mac_addr_cntl_data,
+               NETXEN_CRB_NORMALIZE(adapter, NETXEN_MAC_ADDR_CNTL_REG));
+        if (adapter->ahw.board_type == NETXEN_NIC_XGBE) {
+                writel(netxen_mac_addr_cntl_data,
+                       NETXEN_CRB_NORMALIZE(adapter,
+                                            NETXEN_MULTICAST_ADDR_HI_0));
+        } else {
+                writel(netxen_mac_addr_cntl_data,
+                       NETXEN_CRB_NORMALIZE(adapter,
+                                            NETXEN_MULTICAST_ADDR_HI_1));
+        }
+        netxen_mac_addr_cntl_data = 0;
+        writel(netxen_mac_addr_cntl_data,
+               NETXEN_CRB_NORMALIZE(adapter, NETXEN_NIU_GB_DROP_WRONGADDR));
+}
+
+/*
+ * netxen_nic_change_mtu - Change the Maximum Transfer Unit
+ * @returns 0 on success, negative on failure
+ */
+int netxen_nic_change_mtu(struct net_device *netdev, int mtu)
+{
+        struct netxen_port *port = netdev_priv(netdev);
+        struct netxen_adapter *adapter = port->adapter;
+        int eff_mtu = mtu + NETXEN_ENET_HEADER_SIZE + NETXEN_ETH_FCS_SIZE;
+
+        if ((eff_mtu > NETXEN_MAX_MTU) || (eff_mtu < NETXEN_MIN_MTU)) {
+                printk(KERN_ERR "%s: %s %d is not supported.\n",
+                       netxen_nic_driver_name, netdev->name, mtu);
+                return -EINVAL;
+        }
+
+        if (adapter->ops->set_mtu)
+                adapter->ops->set_mtu(port, mtu);
+        netdev->mtu = mtu;
+
+        return 0;
+}
+
+/*
+ * check if the firmware has been downloaded and ready to run  and
+ * setup the address for the descriptors in the adapter
+ */
+int netxen_nic_hw_resources(struct netxen_adapter *adapter)
+{
+        struct netxen_hardware_context *hw = &adapter->ahw;
+        int i;
+        u32 state = 0;
+        void *addr;
+        int loops = 0, err = 0;
+        int ctx, ring;
+        u32 card_cmdring = 0;
+        struct netxen_rcv_desc_crb *rcv_desc_crb = NULL;
+        struct netxen_recv_context *recv_ctx;
+        struct netxen_rcv_desc_ctx *rcv_desc;
+        struct cmd_desc_type0 *pcmd;
+
+        DPRINTK(INFO, "pci_base: %lx\n", adapter->ahw.pci_base);
+        DPRINTK(INFO, "crb_base: %lx %lx", NETXEN_PCI_CRBSPACE,
+                adapter->ahw.pci_base + NETXEN_PCI_CRBSPACE);
+        DPRINTK(INFO, "cam base: %lx %lx", NETXEN_CRB_CAM,
+                adapter->ahw.pci_base + NETXEN_CRB_CAM);
+        DPRINTK(INFO, "cam RAM: %lx %lx", NETXEN_CAM_RAM_BASE,
+                adapter->ahw.pci_base + NETXEN_CAM_RAM_BASE);
+        DPRINTK(INFO, "NIC base:%lx %lx\n", NIC_CRB_BASE_PORT1,
+                adapter->ahw.pci_base + NIC_CRB_BASE_PORT1);
+
+        /* Window 1 call */
+        card_cmdring = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_CMDRING));
+
+        DPRINTK(INFO, "Command Peg sends 0x%x for cmdring base\n",
+                card_cmdring);
+
+        for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
+                DPRINTK(INFO, "Command Peg ready..waiting for rcv peg\n");
+                loops = 0;
+                state = 0;
+                /* Window 1 call */
+                state = readl(NETXEN_CRB_NORMALIZE(adapter,
+                                                   recv_crb_registers[ctx].
+                                                   crb_rcvpeg_state));
+                while (state != PHAN_PEG_RCV_INITIALIZED && loops < 20) {
+                        udelay(100);
+                        /* Window 1 call */
+                        state = readl(NETXEN_CRB_NORMALIZE(adapter,
+                                                           recv_crb_registers
+                                                           [ctx].
+                                                           crb_rcvpeg_state));
+                        loops++;
+                }
+                if (loops >= 20) {
+                        printk(KERN_ERR "Rcv Peg initialization not complete:"
+                               "%x.\n", state);
+                        err = -EIO;
+                        return err;
+                }
+        }
+        DPRINTK(INFO, "Recieve Peg ready too. starting stuff\n");
+
+        addr = pci_alloc_consistent(adapter->ahw.pdev,
+                                    sizeof(struct cmd_desc_type0) *
+                                    adapter->max_tx_desc_count,
+                                    &hw->cmd_desc_phys_addr);
+        if (addr == NULL) {
+                DPRINTK(ERR, "bad return from pci_alloc_consistent\n");
+                err = -ENOMEM;
+                return err;
+        }
+
+        /* we need to prelink all of the cmd descriptors */
+        pcmd = (struct cmd_desc_type0 *)addr;
+        for (i = 1; i < adapter->max_tx_desc_count; i++) {
+                pcmd->netxen_next =
+                    (card_cmdring + i * sizeof(struct cmd_desc_type0));
+                pcmd++;
+        }
+        /* fill in last link (point to first) */
+        pcmd->netxen_next = card_cmdring;
+
+        hw->cmd_desc_head = (struct cmd_desc_type0 *)addr;
+
+        for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
+                recv_ctx = &adapter->recv_ctx[ctx];
+
+                for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
+                        rcv_desc = &recv_ctx->rcv_desc[ring];
+                        addr = pci_alloc_consistent(adapter->ahw.pdev,
+                                                    RCV_DESC_RINGSIZE,
+                                                    &rcv_desc->phys_addr);
+                        if (addr == NULL) {
+                                DPRINTK(ERR, "bad return from "
+                                        "pci_alloc_consistent\n");
+                                netxen_free_hw_resources(adapter);
+                                err = -ENOMEM;
+                                return err;
+                        }
+                        rcv_desc->desc_head = (struct rcv_desc *)addr;
+                }
+
+                addr = pci_alloc_consistent(adapter->ahw.pdev,
+                                            STATUS_DESC_RINGSIZE,
+                                            &recv_ctx->
+                                            rcv_status_desc_phys_addr);
+                if (addr == NULL) {
+                        DPRINTK(ERR, "bad return from"
+                                " pci_alloc_consistent\n");
+                        netxen_free_hw_resources(adapter);
+                        err = -ENOMEM;
+                        return err;
+                }
+                recv_ctx->rcv_status_desc_head = (struct status_desc *)addr;
+                for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
+                        rcv_desc = &recv_ctx->rcv_desc[ring];
+                        rcv_desc_crb =
+                            &recv_crb_registers[ctx].rcv_desc_crb[ring];
+                        DPRINTK(INFO, "ring #%d crb global ring reg 0x%x\n",
+                                ring, rcv_desc_crb->crb_globalrcv_ring);
+                        /* Window = 1 */
+                        writel(rcv_desc->phys_addr,
+                               NETXEN_CRB_NORMALIZE(adapter,
+                                                    rcv_desc_crb->
+                                                    crb_globalrcv_ring));
+                        DPRINTK(INFO, "GLOBAL_RCV_RING ctx %d, addr 0x%x"
+                                " val 0x%x,"
+                                " virt %p\n", ctx,
+                                rcv_desc_crb->crb_globalrcv_ring,
+                                rcv_desc->phys_addr, rcv_desc->desc_head);
+                }
+
+                /* Window = 1 */
+                writel(recv_ctx->rcv_status_desc_phys_addr,
+                       NETXEN_CRB_NORMALIZE(adapter,
+                                            recv_crb_registers[ctx].
+                                            crb_rcvstatus_ring));
+                DPRINTK(INFO, "RCVSTATUS_RING, ctx %d, addr 0x%x,"
+                        " val 0x%x,virt%p\n",
+                        ctx,
+                        recv_crb_registers[ctx].crb_rcvstatus_ring,
+                        recv_ctx->rcv_status_desc_phys_addr,
+                        recv_ctx->rcv_status_desc_head);
+        }
+        /* Window = 1 */
+        writel(hw->cmd_desc_phys_addr,
+               NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO));
+
+        return err;
+}
+
+void netxen_free_hw_resources(struct netxen_adapter *adapter)
+{
+        struct netxen_recv_context *recv_ctx;
+        struct netxen_rcv_desc_ctx *rcv_desc;
+        int ctx, ring;
+
+        if (adapter->ahw.cmd_desc_head != NULL) {
+                pci_free_consistent(adapter->ahw.pdev,
+                                    sizeof(struct cmd_desc_type0) *
+                                    adapter->max_tx_desc_count,
+                                    adapter->ahw.cmd_desc_head,
+                                    adapter->ahw.cmd_desc_phys_addr);
+                adapter->ahw.cmd_desc_head = NULL;
+        }
+
+        for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
+                recv_ctx = &adapter->recv_ctx[ctx];
+                for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) {
+                        rcv_desc = &recv_ctx->rcv_desc[ring];
+
+                        if (rcv_desc->desc_head != NULL) {
+                                pci_free_consistent(adapter->ahw.pdev,
+                                                    RCV_DESC_RINGSIZE,
+                                                    rcv_desc->desc_head,
+                                                    rcv_desc->phys_addr);
+                                rcv_desc->desc_head = NULL;
+                        }
+                }
+
+                if (recv_ctx->rcv_status_desc_head != NULL) {
+                        pci_free_consistent(adapter->ahw.pdev,
+                                            STATUS_DESC_RINGSIZE,
+                                            recv_ctx->rcv_status_desc_head,
+                                            recv_ctx->
+                                            rcv_status_desc_phys_addr);
+                        recv_ctx->rcv_status_desc_head = NULL;
+                }
+        }
+}
+
+void netxen_tso_check(struct netxen_adapter *adapter,
+                      struct cmd_desc_type0 *desc, struct sk_buff *skb)
+{
+        if (desc->mss) {
+                desc->total_hdr_length = sizeof(struct ethhdr) +
+                    ((skb->nh.iph)->ihl * sizeof(u32)) +
+                    ((skb->h.th)->doff * sizeof(u32));
+                desc->opcode = TX_TCP_LSO;
+        } else if (skb->ip_summed == CHECKSUM_HW) {
+                if (skb->nh.iph->protocol == IPPROTO_TCP) {
+                        desc->opcode = TX_TCP_PKT;
+                } else if (skb->nh.iph->protocol == IPPROTO_UDP) {
+                        desc->opcode = TX_UDP_PKT;
+                } else {
+                        return;
+                }
+        }
+        CMD_DESC_TCP_HDR_OFFSET_WRT(desc, skb->h.raw - skb->data);
+        desc->length_tcp_hdr = cpu_to_le32(desc->length_tcp_hdr);
+        desc->ip_hdr_offset = skb->nh.raw - skb->data;
+        adapter->stats.xmitcsummed++;
+}
+
+int netxen_is_flash_supported(struct netxen_adapter *adapter)
+{
+        const int locs[] = { 0, 0x4, 0x100, 0x4000, 0x4128 };
+        int addr, val01, val02, i, j;
+
+        /* if the flash size less than 4Mb, make huge war cry and die */
+        for (j = 1; j < 4; j++) {
+                addr = j * 0x100000;
+                for (i = 0; i < (sizeof(locs) / sizeof(locs[0])); i++) {
+                        if (netxen_rom_fast_read(adapter, locs[i], &val01) == 0
+                            && netxen_rom_fast_read(adapter, (addr + locs[i]),
+                                                    &val02) == 0) {
+                                if (val01 == val02)
+                                        return -1;
+                        } else
+                                return -1;
+                }
+        }
+
+        return 0;
+}
+
+static int netxen_get_flash_block(struct netxen_adapter *adapter, int base,
+                                  int size, u32 * buf)
+{
+        int i, addr;
+        u32 *ptr32;
+
+        addr = base;
+        ptr32 = buf;
+        for (i = 0; i < size / sizeof(u32); i++) {
+                if (netxen_rom_fast_read(adapter, addr, ptr32) == -1)
+                        return -1;
+                ptr32++;
+                addr += sizeof(u32);
+        }
+        if ((char *)buf + size > (char *)ptr32) {
+                u32 local;
+
+                if (netxen_rom_fast_read(adapter, addr, &local) == -1)
+                        return -1;
+                memcpy(ptr32, &local, (char *)buf + size - (char *)ptr32);
+        }
+
+        return 0;
+}
+
+int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, u64 mac[])
+{
+        u32 *pmac = (u32 *) & mac[0];
+
+        if (netxen_get_flash_block(adapter,
+                                   USER_START +
+                                   offsetof(struct netxen_new_user_info,
+                                            mac_addr),
+                                   FLASH_NUM_PORTS * sizeof(u64), pmac) == -1) {
+                return -1;
+        }
+        if (*mac == ~0ULL) {
+                if (netxen_get_flash_block(adapter,
+                                           USER_START_OLD +
+                                           offsetof(struct netxen_user_old_info,
+                                                    mac_addr),
+                                           FLASH_NUM_PORTS * sizeof(u64),
+                                           pmac) == -1)
+                        return -1;
+                if (*mac == ~0ULL)
+                        return -1;
+        }
+        return 0;
+}
+
+/*
+ * Changes the CRB window to the specified window.
+ */
+void netxen_nic_pci_change_crbwindow(struct netxen_adapter *adapter, u32 wndw)
+{
+        void __iomem *offset;
+        u32 tmp;
+        int count = 0;
+
+        if (adapter->curr_window == wndw)
+                return;
+
+        /*
+         * Move the CRB window.
+         * We need to write to the "direct access" region of PCI
+         * to avoid a race condition where the window register has
+         * not been successfully written across CRB before the target
+         * register address is received by PCI. The direct region bypasses
+         * the CRB bus.
+         */
+        offset = adapter->ahw.pci_base + NETXEN_PCIX_PH_REG(PCIX_CRB_WINDOW);
+
+        if (wndw & 0x1)
+                wndw = NETXEN_WINDOW_ONE;
+
+        writel(wndw, offset);
+
+        /* MUST make sure window is set before we forge on... */
+        while ((tmp = readl(offset)) != wndw) {
+                printk(KERN_WARNING "%s: %s WARNING: CRB window value not "
+                       "registered properly: 0x%08x.\n",
+                       netxen_nic_driver_name, __FUNCTION__, tmp);
+                mdelay(1);
+                if (count >= 10)
+                        break;
+                count++;
+        }
+
+        adapter->curr_window = wndw;
+}
+
+void netxen_load_firmware(struct netxen_adapter *adapter)
+{
+        int i;
+        long data, size = 0;
+        long flashaddr = NETXEN_FLASH_BASE, memaddr = NETXEN_PHANTOM_MEM_BASE;
+        u64 off;
+        void __iomem *addr;
+
+        size = NETXEN_FIRMWARE_LEN;
+        writel(1, NETXEN_CRB_NORMALIZE(adapter, NETXEN_ROMUSB_GLB_CAS_RST));
+
+        for (i = 0; i < size; i++) {
+                if (netxen_rom_fast_read(adapter, flashaddr, (int *)&data) != 0) {
+                        DPRINTK(ERR,
+                                "Error in netxen_rom_fast_read(). Will skip"
+                                "loading flash image\n");
+                        return;
+                }
+                off = netxen_nic_pci_set_window(adapter->ahw.pci_base, memaddr);
+                addr = (adapter->ahw.pci_base + off);
+                writel(data, addr);
+                flashaddr += 4;
+                memaddr += 4;
+        }
+        udelay(100);
+        /* make sure Casper is powered on */
+        writel(0x3fff,
+               NETXEN_CRB_NORMALIZE(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL));
+        writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_ROMUSB_GLB_CAS_RST));
+
+        udelay(100);
+}
+
+int
+netxen_nic_hw_write_wx(struct netxen_adapter *adapter, u64 off, void *data,
+                       int len)
+{
+        void __iomem *addr;
+
+        if (ADDR_IN_WINDOW1(off)) {
+                addr = NETXEN_CRB_NORMALIZE(adapter, off);
+        } else {                /* Window 0 */
+                addr = adapter->ahw.pci_base + off;
+                netxen_nic_pci_change_crbwindow(adapter, 0);
+        }
+
+        DPRINTK(INFO, "writing to base %lx offset %llx addr %p"
+                " data %llx len %d\n",
+                adapter->ahw.pci_base, off, addr,
+                *(unsigned long long *)data, len);
+        switch (len) {
+        case 1:
+                writeb(*(u8 *) data, addr);
+                break;
+        case 2:
+                writew(*(u16 *) data, addr);
+                break;
+        case 4:
+                writel(*(u32 *) data, addr);
+                break;
+        case 8:
+                writeq(*(u64 *) data, addr);
+                break;
+        default:
+                DPRINTK(INFO,
+                        "writing data %lx to offset %llx, num words=%d\n",
+                        *(unsigned long *)data, off, (len >> 3));
+
+                netxen_nic_hw_block_write64((u64 __iomem *) data, addr,
+                                            (len >> 3));
+                break;
+        }
+        if (!ADDR_IN_WINDOW1(off))
+                netxen_nic_pci_change_crbwindow(adapter, 1);
+
+        return 0;
+}
+
+int
+netxen_nic_hw_read_wx(struct netxen_adapter *adapter, u64 off, void *data,
+                      int len)
+{
+        void __iomem *addr;
+
+        if (ADDR_IN_WINDOW1(off)) {     /* Window 1 */
+                addr = NETXEN_CRB_NORMALIZE(adapter, off);
+        } else {                /* Window 0 */
+                addr = adapter->ahw.pci_base + off;
+                netxen_nic_pci_change_crbwindow(adapter, 0);
+        }
+
+        DPRINTK(INFO, "reading from base %lx offset %llx addr %p\n",
+                adapter->ahw.pci_base, off, addr);
+        switch (len) {
+        case 1:
+                *(u8 *) data = readb(addr);
+                break;
+        case 2:
+                *(u16 *) data = readw(addr);
+                break;
+        case 4:
+                *(u32 *) data = readl(addr);
+                break;
+        case 8:
+                *(u64 *) data = readq(addr);
+                break;
+        default:
+                netxen_nic_hw_block_read64((u64 __iomem *) data, addr,
+                                           (len >> 3));
+                break;
+        }
+        DPRINTK(INFO, "read %lx\n", *(unsigned long *)data);
+
+        if (!ADDR_IN_WINDOW1(off))
+                netxen_nic_pci_change_crbwindow(adapter, 1);
+
+        return 0;
+}
+
+void netxen_nic_reg_write(struct netxen_adapter *adapter, u64 off, u32 val)
+{                               /* Only for window 1 */
+        void __iomem *addr;
+
+        addr = NETXEN_CRB_NORMALIZE(adapter, off);
+        DPRINTK(INFO, "writing to base %lx offset %llx addr %p data %x\n",
+                adapter->ahw.pci_base, off, addr, val);
+        writel(val, addr);
+
+}
+
+int netxen_nic_reg_read(struct netxen_adapter *adapter, u64 off)
+{                               /* Only for window 1 */
+        void __iomem *addr;
+        int val;
+
+        addr = NETXEN_CRB_NORMALIZE(adapter, off);
+        DPRINTK(INFO, "reading from base %lx offset %llx addr %p\n",
+                adapter->ahw.pci_base, off, addr);
+        val = readl(addr);
+        writel(val, addr);
+
+        return val;
+}
+
+/* Change the window to 0, write and change back to window 1. */
+void netxen_nic_write_w0(struct netxen_adapter *adapter, u32 index, u32 value)
+{
+        void __iomem *addr;
+
+        netxen_nic_pci_change_crbwindow(adapter, 0);
+        addr = (void __iomem *)(adapter->ahw.pci_base + index);
+        writel(value, addr);
+        netxen_nic_pci_change_crbwindow(adapter, 1);
+}
+
+/* Change the window to 0, read and change back to window 1. */
+void netxen_nic_read_w0(struct netxen_adapter *adapter, u32 index, u32 * value)
+{
+        void __iomem *addr;
+
+        addr = (void __iomem *)(adapter->ahw.pci_base + index);
+
+        netxen_nic_pci_change_crbwindow(adapter, 0);
+        *value = readl(addr);
+        netxen_nic_pci_change_crbwindow(adapter, 1);
+}
+
+int netxen_pci_set_window_warning_count = 0;
+
+unsigned long
+netxen_nic_pci_set_window(void __iomem * pci_base, unsigned long long addr)
+{
+        static int ddr_mn_window = -1;
+        static int qdr_sn_window = -1;
+        int window;
+
+        if (ADDR_IN_RANGE(addr, NETXEN_ADDR_DDR_NET, NETXEN_ADDR_DDR_NET_MAX)) {
+                /* DDR network side */
+                addr -= NETXEN_ADDR_DDR_NET;
+                window = (addr >> 25) & 0x3ff;
+                if (ddr_mn_window != window) {
+                        ddr_mn_window = window;
+                        writel(window, pci_base +
+                               NETXEN_PCIX_PH_REG(PCIX_MN_WINDOW));
+                        /* MUST make sure window is set before we forge on... */
+                        readl(pci_base + NETXEN_PCIX_PH_REG(PCIX_MN_WINDOW));
+                }
+                addr -= (window * 0x2000000);
+                addr += NETXEN_PCI_DDR_NET;
+        } else if (ADDR_IN_RANGE(addr, NETXEN_ADDR_OCM0, NETXEN_ADDR_OCM0_MAX)) {
+                addr -= NETXEN_ADDR_OCM0;
+                addr += NETXEN_PCI_OCM0;
+        } else if (ADDR_IN_RANGE(addr, NETXEN_ADDR_OCM1, NETXEN_ADDR_OCM1_MAX)) {
+                addr -= NETXEN_ADDR_OCM1;
+                addr += NETXEN_PCI_OCM1;
+        } else
+            if (ADDR_IN_RANGE
+                (addr, NETXEN_ADDR_QDR_NET, NETXEN_ADDR_QDR_NET_MAX)) {
+                /* QDR network side */
+                addr -= NETXEN_ADDR_QDR_NET;
+                window = (addr >> 22) & 0x3f;
+                if (qdr_sn_window != window) {
+                        qdr_sn_window = window;
+                        writel((window << 22), pci_base +
+                               NETXEN_PCIX_PH_REG(PCIX_SN_WINDOW));
+                        /* MUST make sure window is set before we forge on... */
+                        readl(pci_base + NETXEN_PCIX_PH_REG(PCIX_SN_WINDOW));
+                }
+                addr -= (window * 0x400000);
+                addr += NETXEN_PCI_QDR_NET;
+        } else {
+                /*
+                 * peg gdb frequently accesses memory that doesn't exist,
+                 * this limits the chit chat so debugging isn't slowed down.
+                 */
+                if ((netxen_pci_set_window_warning_count++ < 8)
+                    || (netxen_pci_set_window_warning_count % 64 == 0))
+                        printk("%s: Warning:netxen_nic_pci_set_window()"
+                               " Unknown address range!\n",
+                               netxen_nic_driver_name);
+
+        }
+        return addr;
+}
+
+int netxen_nic_get_board_info(struct netxen_adapter *adapter)
+{
+        int rv = 0;
+        int addr = BRDCFG_START;
+        struct netxen_board_info *boardinfo;
+        int index;
+        u32 *ptr32;
+
+        boardinfo = &adapter->ahw.boardcfg;
+        ptr32 = (u32 *) boardinfo;
+
+        for (index = 0; index < sizeof(struct netxen_board_info) / sizeof(u32);
+             index++) {
+                if (netxen_rom_fast_read(adapter, addr, ptr32) == -1) {
+                        return -EIO;
+                }
+                ptr32++;
+                addr += sizeof(u32);
+        }
+        if (boardinfo->magic != NETXEN_BDINFO_MAGIC) {
+                printk("%s: ERROR reading %s board config."
+                       " Read %x, expected %x\n", netxen_nic_driver_name,
+                       netxen_nic_driver_name,
+                       boardinfo->magic, NETXEN_BDINFO_MAGIC);
+                rv = -1;
+        }
+        if (boardinfo->header_version != NETXEN_BDINFO_VERSION) {
+                printk("%s: Unknown board config version."
+                       " Read %x, expected %x\n", netxen_nic_driver_name,
+                       boardinfo->header_version, NETXEN_BDINFO_VERSION);
+                rv = -1;
+        }
+
+        DPRINTK(INFO, "Discovered board type:0x%x  ", boardinfo->board_type);
+        switch ((netxen_brdtype_t) boardinfo->board_type) {
+        case NETXEN_BRDTYPE_P2_SB35_4G:
+                adapter->ahw.board_type = NETXEN_NIC_GBE;
+                break;
+        case NETXEN_BRDTYPE_P2_SB31_10G:
+        case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
+        case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
+        case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
+                adapter->ahw.board_type = NETXEN_NIC_XGBE;
+                break;
+        case NETXEN_BRDTYPE_P1_BD:
+        case NETXEN_BRDTYPE_P1_SB:
+        case NETXEN_BRDTYPE_P1_SMAX:
+        case NETXEN_BRDTYPE_P1_SOCK:
+                adapter->ahw.board_type = NETXEN_NIC_GBE;
+                break;
+        default:
+                printk("%s: Unknown(%x)\n", netxen_nic_driver_name,
+                       boardinfo->board_type);
+                break;
+        }
+
+        return rv;
+}
+
+/* NIU access sections */
+
+int netxen_nic_set_mtu_gb(struct netxen_port *port, int new_mtu)
+{
+        struct netxen_adapter *adapter = port->adapter;
+        netxen_nic_write_w0(adapter,
+                            NETXEN_NIU_GB_MAX_FRAME_SIZE(port->portnum),
+                            new_mtu);
+        return 0;
+}
+
+int netxen_nic_set_mtu_xgb(struct netxen_port *port, int new_mtu)
+{
+        struct netxen_adapter *adapter = port->adapter;
+        new_mtu += NETXEN_NIU_HDRSIZE + NETXEN_NIU_TLRSIZE;
+        netxen_nic_write_w0(adapter, NETXEN_NIU_XGE_MAX_FRAME_SIZE, new_mtu);
+        return 0;
+}
+
+void netxen_nic_init_niu_gb(struct netxen_adapter *adapter)
+{
+        int portno;
+        for (portno = 0; portno < NETXEN_NIU_MAX_GBE_PORTS; portno++)
+                netxen_niu_gbe_init_port(adapter, portno);
+}
+
+void netxen_nic_stop_all_ports(struct netxen_adapter *adapter)
+{
+        int port_nr;
+        struct netxen_port *port;
+
+        for (port_nr = 0; port_nr < adapter->ahw.max_ports; port_nr++) {
+                port = adapter->port[port_nr];
+                if (adapter->ops->stop_port)
+                        adapter->ops->stop_port(adapter, port->portnum);
+        }
+}
+
+void
+netxen_crb_writelit_adapter(struct netxen_adapter *adapter, unsigned long off,
+                            int data)
+{
+        void __iomem *addr;
+
+        if (ADDR_IN_WINDOW1(off)) {
+                writel(data, NETXEN_CRB_NORMALIZE(adapter, off));
+        } else {
+                netxen_nic_pci_change_crbwindow(adapter, 0);
+                addr = (void __iomem *)(adapter->ahw.pci_base + off);
+                writel(data, addr);
+                netxen_nic_pci_change_crbwindow(adapter, 1);
+        }
+}
+
+void netxen_nic_set_link_parameters(struct netxen_port *port)
+{
+        struct netxen_adapter *adapter = port->adapter;
+        __le32 status;
+        u16 autoneg;
+        __le32 mode;
+
+        netxen_nic_read_w0(adapter, NETXEN_NIU_MODE, &mode);
+        if (netxen_get_niu_enable_ge(mode)) {   /* Gb 10/100/1000 Mbps mode */
+                if (adapter->ops->phy_read
+                    && adapter->ops->
+                    phy_read(adapter, port->portnum,
+                             NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
+                             &status) == 0) {
+                        if (netxen_get_phy_link(status)) {
+                                switch (netxen_get_phy_speed(status)) {
+                                case 0:
+                                        port->link_speed = SPEED_10;
+                                        break;
+                                case 1:
+                                        port->link_speed = SPEED_100;
+                                        break;
+                                case 2:
+                                        port->link_speed = SPEED_1000;
+                                        break;
+                                default:
+                                        port->link_speed = -1;
+                                        break;
+                                }
+                                switch (netxen_get_phy_duplex(status)) {
+                                case 0:
+                                        port->link_duplex = DUPLEX_HALF;
+                                        break;
+                                case 1:
+                                        port->link_duplex = DUPLEX_FULL;
+                                        break;
+                                default:
+                                        port->link_duplex = -1;
+                                        break;
+                                }
+                                if (adapter->ops->phy_read
+                                    && adapter->ops->
+                                    phy_read(adapter, port->portnum,
+                                             NETXEN_NIU_GB_MII_MGMT_ADDR_AUTONEG,
+                                             (__le32 *) & autoneg) != 0)
+                                        port->link_autoneg = autoneg;
+                        } else
+                                goto link_down;
+                } else {
+                      link_down:
+                        port->link_speed = -1;
+                        port->link_duplex = -1;
+                }
+        }
+}
+
+void netxen_nic_flash_print(struct netxen_adapter *adapter)
+{
+        int valid = 1;
+        u32 fw_major = 0;
+        u32 fw_minor = 0;
+        u32 fw_build = 0;
+
+        struct netxen_board_info *board_info = &(adapter->ahw.boardcfg);
+        if (board_info->magic != NETXEN_BDINFO_MAGIC) {
+                printk
+                    ("NetXen Unknown board config, Read 0x%x expected as 0x%x\n",
+                     board_info->magic, NETXEN_BDINFO_MAGIC);
+                valid = 0;
+        }
+        if (board_info->header_version != NETXEN_BDINFO_VERSION) {
+                printk("NetXen Unknown board config version."
+                       " Read %x, expected %x\n",
+                       board_info->header_version, NETXEN_BDINFO_VERSION);
+                valid = 0;
+        }
+        if (valid) {
+                printk("NetXen %s Board #%d, Chip id 0x%x\n",
+                       board_info->board_type == 0x0b ? "XGB" : "GBE",
+                       board_info->board_num, board_info->chip_id);
+                fw_major = readl(NETXEN_CRB_NORMALIZE(adapter,
+                                                      NETXEN_FW_VERSION_MAJOR));
+                fw_minor = readl(NETXEN_CRB_NORMALIZE(adapter,
+                                                      NETXEN_FW_VERSION_MINOR));
+                fw_build =
+                    readl(NETXEN_CRB_NORMALIZE(adapter, NETXEN_FW_VERSION_SUB));
+
+                printk("NetXen Firmware version %d.%d.%d\n", fw_major, fw_minor,
+                       fw_build);
+        }
+        if (fw_major != _NETXEN_NIC_LINUX_MAJOR) {
+                printk(KERN_ERR "The mismatch in driver version and firmware "
+                       "version major number\n"
+                       "Driver version major number = %d \t"
+                       "Firmware version major number = %d \n",
+                       _NETXEN_NIC_LINUX_MAJOR, fw_major);
+                adapter->driver_mismatch = 1;
+        }
+        if (fw_minor != _NETXEN_NIC_LINUX_MINOR) {
+                printk(KERN_ERR "The mismatch in driver version and firmware "
+                       "version minor number\n"
+                       "Driver version minor number = %d \t"
+                       "Firmware version minor number = %d \n",
+                       _NETXEN_NIC_LINUX_MINOR, fw_minor);
+                adapter->driver_mismatch = 1;
+        }
+        if (adapter->driver_mismatch)
+                printk(KERN_INFO "Use the driver with version no %d.%d.xxx\n",
+                       fw_major, fw_minor);
+}
+
+int netxen_crb_read_val(struct netxen_adapter *adapter, unsigned long off)
+{
+        int data;
+        netxen_nic_hw_read_wx(adapter, off, &data, 4);
+        return data;
+}