This commit was manufactured by cvs2svn to create branch 'vserver'.
[linux-2.6.git] / drivers / net / netxen / netxen_nic_ethtool.c
diff --git a/drivers/net/netxen/netxen_nic_ethtool.c b/drivers/net/netxen/netxen_nic_ethtool.c
new file mode 100644 (file)
index 0000000..c381d77
--- /dev/null
@@ -0,0 +1,739 @@
+/*
+ * 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
+ *
+ *
+ * ethtool support for netxen nic
+ *
+ */
+
+#include <linux/types.h>
+#include <asm/uaccess.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/version.h>
+
+#include "netxen_nic_hw.h"
+#include "netxen_nic.h"
+#include "netxen_nic_phan_reg.h"
+
+struct netxen_nic_stats {
+       char stat_string[ETH_GSTRING_LEN];
+       int sizeof_stat;
+       int stat_offset;
+};
+
+#define NETXEN_NIC_STAT(m) sizeof(((struct netxen_port *)0)->m), \
+                       offsetof(struct netxen_port, m)
+
+#define NETXEN_NIC_PORT_WINDOW 0x10000
+#define NETXEN_NIC_INVALID_DATA 0xDEADBEEF
+
+static const struct netxen_nic_stats netxen_nic_gstrings_stats[] = {
+       {"rcvd_bad_skb", NETXEN_NIC_STAT(stats.rcvdbadskb)},
+       {"xmit_called", NETXEN_NIC_STAT(stats.xmitcalled)},
+       {"xmited_frames", NETXEN_NIC_STAT(stats.xmitedframes)},
+       {"xmit_finished", NETXEN_NIC_STAT(stats.xmitfinished)},
+       {"bad_skb_len", NETXEN_NIC_STAT(stats.badskblen)},
+       {"no_cmd_desc", NETXEN_NIC_STAT(stats.nocmddescriptor)},
+       {"polled", NETXEN_NIC_STAT(stats.polled)},
+       {"uphappy", NETXEN_NIC_STAT(stats.uphappy)},
+       {"updropped", NETXEN_NIC_STAT(stats.updropped)},
+       {"uplcong", NETXEN_NIC_STAT(stats.uplcong)},
+       {"uphcong", NETXEN_NIC_STAT(stats.uphcong)},
+       {"upmcong", NETXEN_NIC_STAT(stats.upmcong)},
+       {"updunno", NETXEN_NIC_STAT(stats.updunno)},
+       {"skb_freed", NETXEN_NIC_STAT(stats.skbfreed)},
+       {"tx_dropped", NETXEN_NIC_STAT(stats.txdropped)},
+       {"tx_null_skb", NETXEN_NIC_STAT(stats.txnullskb)},
+       {"csummed", NETXEN_NIC_STAT(stats.csummed)},
+       {"no_rcv", NETXEN_NIC_STAT(stats.no_rcv)},
+       {"rx_bytes", NETXEN_NIC_STAT(stats.rxbytes)},
+       {"tx_bytes", NETXEN_NIC_STAT(stats.txbytes)},
+};
+
+#define NETXEN_NIC_STATS_LEN   ARRAY_SIZE(netxen_nic_gstrings_stats)
+
+static const char netxen_nic_gstrings_test[][ETH_GSTRING_LEN] = {
+       "Register_Test_offline", "EEPROM_Test_offline",
+       "Interrupt_Test_offline", "Loopback_Test_offline",
+       "Link_Test_on_offline"
+};
+
+#define NETXEN_NIC_TEST_LEN sizeof(netxen_nic_gstrings_test) / ETH_GSTRING_LEN
+
+#define NETXEN_NIC_REGS_COUNT 42
+#define NETXEN_NIC_REGS_LEN (NETXEN_NIC_REGS_COUNT * sizeof(__le32))
+#define NETXEN_MAX_EEPROM_LEN   1024
+
+static int netxen_nic_get_eeprom_len(struct net_device *dev)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       int n;
+
+       if ((netxen_rom_fast_read(adapter, 0, &n) == 0)
+           && (n & NETXEN_ROM_ROUNDUP)) {
+               n &= ~NETXEN_ROM_ROUNDUP;
+               if (n < NETXEN_MAX_EEPROM_LEN)
+                       return n;
+       }
+       return 0;
+}
+
+static void
+netxen_nic_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       u32 fw_major = 0;
+       u32 fw_minor = 0;
+       u32 fw_build = 0;
+
+       strncpy(drvinfo->driver, netxen_nic_driver_name, 32);
+       strncpy(drvinfo->version, NETXEN_NIC_LINUX_VERSIONID, 32);
+       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));
+       sprintf(drvinfo->fw_version, "%d.%d.%d", fw_major, fw_minor, fw_build);
+
+       strncpy(drvinfo->bus_info, pci_name(port->pdev), 32);
+       drvinfo->n_stats = NETXEN_NIC_STATS_LEN;
+       drvinfo->testinfo_len = NETXEN_NIC_TEST_LEN;
+       drvinfo->regdump_len = NETXEN_NIC_REGS_LEN;
+       drvinfo->eedump_len = netxen_nic_get_eeprom_len(dev);
+}
+
+static int
+netxen_nic_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       struct netxen_board_info *boardinfo = &adapter->ahw.boardcfg;
+
+       /* read which mode */
+       if (adapter->ahw.board_type == NETXEN_NIC_GBE) {
+               ecmd->supported = (SUPPORTED_10baseT_Half |
+                                  SUPPORTED_10baseT_Full |
+                                  SUPPORTED_100baseT_Half |
+                                  SUPPORTED_100baseT_Full |
+                                  SUPPORTED_1000baseT_Half |
+                                  SUPPORTED_1000baseT_Full);
+
+               ecmd->advertising = (ADVERTISED_100baseT_Half |
+                                    ADVERTISED_100baseT_Full |
+                                    ADVERTISED_1000baseT_Half |
+                                    ADVERTISED_1000baseT_Full);
+
+               ecmd->port = PORT_TP;
+
+               if (netif_running(dev)) {
+                       ecmd->speed = port->link_speed;
+                       ecmd->duplex = port->link_duplex;
+               } else
+                       return -EIO;    /* link absent */
+       } else if (adapter->ahw.board_type == NETXEN_NIC_XGBE) {
+               ecmd->supported = (SUPPORTED_TP |
+                                  SUPPORTED_1000baseT_Full |
+                                  SUPPORTED_10000baseT_Full);
+               ecmd->advertising = (ADVERTISED_TP |
+                                    ADVERTISED_1000baseT_Full |
+                                    ADVERTISED_10000baseT_Full);
+               ecmd->port = PORT_TP;
+
+               ecmd->speed = SPEED_10000;
+               ecmd->duplex = DUPLEX_FULL;
+               ecmd->autoneg = AUTONEG_DISABLE;
+       } else
+               return -EIO;
+
+       ecmd->phy_address = port->portnum;
+       ecmd->transceiver = XCVR_EXTERNAL;
+
+       switch ((netxen_brdtype_t) boardinfo->board_type) {
+       case NETXEN_BRDTYPE_P2_SB35_4G:
+       case NETXEN_BRDTYPE_P2_SB31_2G:
+               ecmd->supported |= SUPPORTED_Autoneg;
+               ecmd->advertising |= ADVERTISED_Autoneg;
+       case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
+               ecmd->supported |= SUPPORTED_TP;
+               ecmd->advertising |= ADVERTISED_TP;
+               ecmd->port = PORT_TP;
+               ecmd->autoneg = (boardinfo->board_type ==
+                                NETXEN_BRDTYPE_P2_SB31_10G_CX4) ?
+                   (AUTONEG_DISABLE) : (port->link_autoneg);
+               break;
+       case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
+       case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
+               ecmd->supported |= SUPPORTED_MII;
+               ecmd->advertising |= ADVERTISED_MII;
+               ecmd->port = PORT_FIBRE;
+               ecmd->autoneg = AUTONEG_DISABLE;
+               break;
+       case NETXEN_BRDTYPE_P2_SB31_10G:
+               ecmd->supported |= SUPPORTED_FIBRE;
+               ecmd->advertising |= ADVERTISED_FIBRE;
+               ecmd->port = PORT_FIBRE;
+               ecmd->autoneg = AUTONEG_DISABLE;
+               break;
+       default:
+               printk(KERN_ERR "netxen-nic: Unsupported board model %d\n",
+                      (netxen_brdtype_t) boardinfo->board_type);
+               return -EIO;
+       }
+
+       return 0;
+}
+
+static int
+netxen_nic_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       __u32 status;
+
+       /* read which mode */
+       if (adapter->ahw.board_type == NETXEN_NIC_GBE) {
+               /* autonegotiation */
+               if (adapter->phy_write
+                   && adapter->phy_write(adapter, port->portnum,
+                                         NETXEN_NIU_GB_MII_MGMT_ADDR_AUTONEG,
+                                         ecmd->autoneg) != 0)
+                       return -EIO;
+               else
+                       port->link_autoneg = ecmd->autoneg;
+
+               if (adapter->phy_read
+                   && adapter->phy_read(adapter, port->portnum,
+                                        NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
+                                        &status) != 0)
+                       return -EIO;
+
+               /* speed */
+               switch (ecmd->speed) {
+               case SPEED_10:
+                       netxen_set_phy_speed(status, 0);
+                       break;
+               case SPEED_100:
+                       netxen_set_phy_speed(status, 1);
+                       break;
+               case SPEED_1000:
+                       netxen_set_phy_speed(status, 2);
+                       break;
+               }
+               /* set duplex mode */
+               if (ecmd->duplex == DUPLEX_HALF)
+                       netxen_clear_phy_duplex(status);
+               if (ecmd->duplex == DUPLEX_FULL)
+                       netxen_set_phy_duplex(status);
+               if (adapter->phy_write
+                   && adapter->phy_write(adapter, port->portnum,
+                                         NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
+                                         *((int *)&status)) != 0)
+                       return -EIO;
+               else {
+                       port->link_speed = ecmd->speed;
+                       port->link_duplex = ecmd->duplex;
+               }
+       } else
+               return -EOPNOTSUPP;
+
+       if (netif_running(dev)) {
+               dev->stop(dev);
+               dev->open(dev);
+       }
+       return 0;
+}
+
+static int netxen_nic_get_regs_len(struct net_device *dev)
+{
+       return NETXEN_NIC_REGS_LEN;
+}
+
+struct netxen_niu_regs {
+       __u32 reg[NETXEN_NIC_REGS_COUNT];
+};
+
+static struct netxen_niu_regs niu_registers[] = {
+       {
+        /* GB Mode */
+        {
+         NETXEN_NIU_GB_SERDES_RESET,
+         NETXEN_NIU_GB0_MII_MODE,
+         NETXEN_NIU_GB1_MII_MODE,
+         NETXEN_NIU_GB2_MII_MODE,
+         NETXEN_NIU_GB3_MII_MODE,
+         NETXEN_NIU_GB0_GMII_MODE,
+         NETXEN_NIU_GB1_GMII_MODE,
+         NETXEN_NIU_GB2_GMII_MODE,
+         NETXEN_NIU_GB3_GMII_MODE,
+         NETXEN_NIU_REMOTE_LOOPBACK,
+         NETXEN_NIU_GB0_HALF_DUPLEX,
+         NETXEN_NIU_GB1_HALF_DUPLEX,
+         NETXEN_NIU_RESET_SYS_FIFOS,
+         NETXEN_NIU_GB_CRC_DROP,
+         NETXEN_NIU_GB_DROP_WRONGADDR,
+         NETXEN_NIU_TEST_MUX_CTL,
+
+         NETXEN_NIU_GB_MAC_CONFIG_0(0),
+         NETXEN_NIU_GB_MAC_CONFIG_1(0),
+         NETXEN_NIU_GB_HALF_DUPLEX_CTRL(0),
+         NETXEN_NIU_GB_MAX_FRAME_SIZE(0),
+         NETXEN_NIU_GB_TEST_REG(0),
+         NETXEN_NIU_GB_MII_MGMT_CONFIG(0),
+         NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
+         NETXEN_NIU_GB_MII_MGMT_ADDR(0),
+         NETXEN_NIU_GB_MII_MGMT_CTRL(0),
+         NETXEN_NIU_GB_MII_MGMT_STATUS(0),
+         NETXEN_NIU_GB_MII_MGMT_INDICATE(0),
+         NETXEN_NIU_GB_INTERFACE_CTRL(0),
+         NETXEN_NIU_GB_INTERFACE_STATUS(0),
+         NETXEN_NIU_GB_STATION_ADDR_0(0),
+         NETXEN_NIU_GB_STATION_ADDR_1(0),
+         -1,
+         }
+        },
+       {
+        /* XG Mode */
+        {
+         NETXEN_NIU_XG_SINGLE_TERM,
+         NETXEN_NIU_XG_DRIVE_HI,
+         NETXEN_NIU_XG_DRIVE_LO,
+         NETXEN_NIU_XG_DTX,
+         NETXEN_NIU_XG_DEQ,
+         NETXEN_NIU_XG_WORD_ALIGN,
+         NETXEN_NIU_XG_RESET,
+         NETXEN_NIU_XG_POWER_DOWN,
+         NETXEN_NIU_XG_RESET_PLL,
+         NETXEN_NIU_XG_SERDES_LOOPBACK,
+         NETXEN_NIU_XG_DO_BYTE_ALIGN,
+         NETXEN_NIU_XG_TX_ENABLE,
+         NETXEN_NIU_XG_RX_ENABLE,
+         NETXEN_NIU_XG_STATUS,
+         NETXEN_NIU_XG_PAUSE_THRESHOLD,
+         NETXEN_NIU_XGE_CONFIG_0,
+         NETXEN_NIU_XGE_CONFIG_1,
+         NETXEN_NIU_XGE_IPG,
+         NETXEN_NIU_XGE_STATION_ADDR_0_HI,
+         NETXEN_NIU_XGE_STATION_ADDR_0_1,
+         NETXEN_NIU_XGE_STATION_ADDR_1_LO,
+         NETXEN_NIU_XGE_STATUS,
+         NETXEN_NIU_XGE_MAX_FRAME_SIZE,
+         NETXEN_NIU_XGE_PAUSE_FRAME_VALUE,
+         NETXEN_NIU_XGE_TX_BYTE_CNT,
+         NETXEN_NIU_XGE_TX_FRAME_CNT,
+         NETXEN_NIU_XGE_RX_BYTE_CNT,
+         NETXEN_NIU_XGE_RX_FRAME_CNT,
+         NETXEN_NIU_XGE_AGGR_ERROR_CNT,
+         NETXEN_NIU_XGE_MULTICAST_FRAME_CNT,
+         NETXEN_NIU_XGE_UNICAST_FRAME_CNT,
+         NETXEN_NIU_XGE_CRC_ERROR_CNT,
+         NETXEN_NIU_XGE_OVERSIZE_FRAME_ERR,
+         NETXEN_NIU_XGE_UNDERSIZE_FRAME_ERR,
+         NETXEN_NIU_XGE_LOCAL_ERROR_CNT,
+         NETXEN_NIU_XGE_REMOTE_ERROR_CNT,
+         NETXEN_NIU_XGE_CONTROL_CHAR_CNT,
+         NETXEN_NIU_XGE_PAUSE_FRAME_CNT,
+         -1,
+         }
+        }
+};
+
+static void
+netxen_nic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       __u32 mode, *regs_buff = p;
+       void __iomem *addr;
+       int i, window;
+
+       memset(p, 0, NETXEN_NIC_REGS_LEN);
+       regs->version = (1 << 24) | (adapter->ahw.revision_id << 16) |
+           (port->pdev)->device;
+       /* which mode */
+       NETXEN_NIC_LOCKED_READ_REG(NETXEN_NIU_MODE, &regs_buff[0]);
+       mode = regs_buff[0];
+
+       /* Common registers to all the modes */
+       NETXEN_NIC_LOCKED_READ_REG(NETXEN_NIU_STRAP_VALUE_SAVE_HIGHER,
+                                  &regs_buff[2]);
+       /* GB/XGB Mode */
+       mode = (mode / 2) - 1;
+       window = 0;
+       if (mode <= 1) {
+               for (i = 3; niu_registers[mode].reg[i - 3] != -1; i++) {
+                       /* GB: port specific registers */
+                       if (mode == 0 && i >= 19)
+                               window = port->portnum * NETXEN_NIC_PORT_WINDOW;
+
+                       NETXEN_NIC_LOCKED_READ_REG(niu_registers[mode].
+                                                  reg[i - 3] + window,
+                                                  &regs_buff[i]);
+               }
+
+       }
+}
+
+static void
+netxen_nic_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+       wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC;
+       /* options can be added depending upon the mode */
+       wol->wolopts = 0;
+}
+
+static u32 netxen_nic_get_link(struct net_device *dev)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       __u32 status;
+
+       /* read which mode */
+       if (adapter->ahw.board_type == NETXEN_NIC_GBE) {
+               if (adapter->phy_read
+                   && adapter->phy_read(adapter, port->portnum,
+                                        NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
+                                        &status) != 0)
+                       return -EIO;
+               else
+                       return (netxen_get_phy_link(status));
+       } else if (adapter->ahw.board_type == NETXEN_NIC_XGBE) {
+               int val = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_XG_STATE));
+               return val == XG_LINK_UP;
+       }
+       return -EIO;
+}
+
+static int
+netxen_nic_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
+                     u8 * bytes)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       int offset;
+
+       if (eeprom->len == 0)
+               return -EINVAL;
+
+       eeprom->magic = (port->pdev)->vendor | ((port->pdev)->device << 16);
+       for (offset = 0; offset < eeprom->len; offset++)
+               if (netxen_rom_fast_read
+                   (adapter, (8 * offset) + 8, (int *)eeprom->data) == -1)
+                       return -EIO;
+       return 0;
+}
+
+static void
+netxen_nic_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ring)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       int i;
+
+       ring->rx_pending = 0;
+       ring->rx_jumbo_pending = 0;
+       for (i = 0; i < MAX_RCV_CTX; ++i) {
+               ring->rx_pending += adapter->recv_ctx[i].
+                   rcv_desc[RCV_DESC_NORMAL_CTXID].rcv_pending;
+               ring->rx_jumbo_pending += adapter->recv_ctx[i].
+                   rcv_desc[RCV_DESC_JUMBO_CTXID].rcv_pending;
+       }
+
+       ring->rx_max_pending = adapter->max_rx_desc_count;
+       ring->tx_max_pending = adapter->max_tx_desc_count;
+       ring->rx_jumbo_max_pending = adapter->max_jumbo_rx_desc_count;
+       ring->rx_mini_max_pending = 0;
+       ring->rx_mini_pending = 0;
+       ring->rx_jumbo_pending = 0;
+}
+
+static void
+netxen_nic_get_pauseparam(struct net_device *dev,
+                         struct ethtool_pauseparam *pause)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       __u32 val;
+
+       if (adapter->ahw.board_type == NETXEN_NIC_GBE) {
+               /* get flow control settings */
+               netxen_nic_read_w0(adapter,
+                                  NETXEN_NIU_GB_MAC_CONFIG_0(port->portnum),
+                                  &val);
+               pause->rx_pause = netxen_gb_get_rx_flowctl(val);
+               pause->tx_pause = netxen_gb_get_tx_flowctl(val);
+               /* get autoneg settings */
+               pause->autoneg = port->link_autoneg;
+       }
+}
+
+static int
+netxen_nic_set_pauseparam(struct net_device *dev,
+                         struct ethtool_pauseparam *pause)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       __u32 val;
+       unsigned int autoneg;
+
+       /* read mode */
+       if (adapter->ahw.board_type == NETXEN_NIC_GBE) {
+               /* set flow control */
+               netxen_nic_read_w0(adapter,
+                                  NETXEN_NIU_GB_MAC_CONFIG_0(port->portnum),
+                                  (u32 *) & val);
+               if (pause->tx_pause)
+                       netxen_gb_tx_flowctl(val);
+               else
+                       netxen_gb_unset_tx_flowctl(val);
+               if (pause->rx_pause)
+                       netxen_gb_rx_flowctl(val);
+               else
+                       netxen_gb_unset_rx_flowctl(val);
+
+               netxen_nic_write_w0(adapter,
+                                   NETXEN_NIU_GB_MAC_CONFIG_0(port->portnum),
+                                   *&val);
+               /* set autoneg */
+               autoneg = pause->autoneg;
+               if (adapter->phy_write
+                   && adapter->phy_write(adapter, port->portnum,
+                                         NETXEN_NIU_GB_MII_MGMT_ADDR_AUTONEG,
+                                         autoneg) != 0)
+                       return -EIO;
+               else {
+                       port->link_autoneg = pause->autoneg;
+                       return 0;
+               }
+       } else
+               return -EOPNOTSUPP;
+}
+
+static int netxen_nic_reg_test(struct net_device *dev)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       struct netxen_adapter *adapter = port->adapter;
+       u32 data_read, data_written, save;
+       __u32 mode;
+
+       /* 
+        * first test the "Read Only" registers by writing which mode
+        */
+       netxen_nic_read_w0(adapter, NETXEN_NIU_MODE, &mode);
+       if (netxen_get_niu_enable_ge(mode)) {   /* GB Mode */
+               netxen_nic_read_w0(adapter,
+                                  NETXEN_NIU_GB_MII_MGMT_STATUS(port->portnum),
+                                  &data_read);
+
+               save = data_read;
+               if (data_read)
+                       data_written = data_read & NETXEN_NIC_INVALID_DATA;
+               else
+                       data_written = NETXEN_NIC_INVALID_DATA;
+               netxen_nic_write_w0(adapter,
+                                   NETXEN_NIU_GB_MII_MGMT_STATUS(port->
+                                                                 portnum),
+                                   data_written);
+               netxen_nic_read_w0(adapter,
+                                  NETXEN_NIU_GB_MII_MGMT_STATUS(port->portnum),
+                                  &data_read);
+
+               if (data_written == data_read) {
+                       netxen_nic_write_w0(adapter,
+                                           NETXEN_NIU_GB_MII_MGMT_STATUS(port->
+                                                                         portnum),
+                                           save);
+
+                       return 0;
+               }
+
+               /* netxen_niu_gb_mii_mgmt_indicators is read only */
+               netxen_nic_read_w0(adapter,
+                                  NETXEN_NIU_GB_MII_MGMT_INDICATE(port->
+                                                                  portnum),
+                                  &data_read);
+
+               save = data_read;
+               if (data_read)
+                       data_written = data_read & NETXEN_NIC_INVALID_DATA;
+               else
+                       data_written = NETXEN_NIC_INVALID_DATA;
+               netxen_nic_write_w0(adapter,
+                                   NETXEN_NIU_GB_MII_MGMT_INDICATE(port->
+                                                                   portnum),
+                                   data_written);
+
+               netxen_nic_read_w0(adapter,
+                                  NETXEN_NIU_GB_MII_MGMT_INDICATE(port->
+                                                                  portnum),
+                                  &data_read);
+
+               if (data_written == data_read) {
+                       netxen_nic_write_w0(adapter,
+                                           NETXEN_NIU_GB_MII_MGMT_INDICATE
+                                           (port->portnum), save);
+                       return 0;
+               }
+
+               /* netxen_niu_gb_interface_status is read only */
+               netxen_nic_read_w0(adapter,
+                                  NETXEN_NIU_GB_INTERFACE_STATUS(port->
+                                                                 portnum),
+                                  &data_read);
+
+               save = data_read;
+               if (data_read)
+                       data_written = data_read & NETXEN_NIC_INVALID_DATA;
+               else
+                       data_written = NETXEN_NIC_INVALID_DATA;
+               netxen_nic_write_w0(adapter,
+                                   NETXEN_NIU_GB_INTERFACE_STATUS(port->
+                                                                  portnum),
+                                   data_written);
+
+               netxen_nic_read_w0(adapter,
+                                  NETXEN_NIU_GB_INTERFACE_STATUS(port->
+                                                                 portnum),
+                                  &data_read);
+
+               if (data_written == data_read) {
+                       netxen_nic_write_w0(adapter,
+                                           NETXEN_NIU_GB_INTERFACE_STATUS
+                                           (port->portnum), save);
+
+                       return 0;
+               }
+       }                       /* GB Mode */
+       return 1;
+}
+
+static int netxen_nic_diag_test_count(struct net_device *dev)
+{
+       return NETXEN_NIC_TEST_LEN;
+}
+
+static void
+netxen_nic_diag_test(struct net_device *dev, struct ethtool_test *eth_test,
+                    u64 * data)
+{
+       if (eth_test->flags == ETH_TEST_FL_OFFLINE) {   /* offline tests */
+               /* link test */
+               if (!(data[4] = (u64) netxen_nic_get_link(dev)))
+                       eth_test->flags |= ETH_TEST_FL_FAILED;
+
+               if (netif_running(dev))
+                       dev->stop(dev);
+
+               /* register tests */
+               if (!(data[0] = netxen_nic_reg_test(dev)))
+                       eth_test->flags |= ETH_TEST_FL_FAILED;
+               /* other tests pass as of now */
+               data[1] = data[2] = data[3] = 1;
+               if (netif_running(dev))
+                       dev->open(dev);
+       } else {                /* online tests */
+               /* link test */
+               if (!(data[4] = (u64) netxen_nic_get_link(dev)))
+                       eth_test->flags |= ETH_TEST_FL_FAILED;
+
+               /* other tests pass by default */
+               data[0] = data[1] = data[2] = data[3] = 1;
+       }
+}
+
+static void
+netxen_nic_get_strings(struct net_device *dev, u32 stringset, u8 * data)
+{
+       int index;
+
+       switch (stringset) {
+       case ETH_SS_TEST:
+               memcpy(data, *netxen_nic_gstrings_test,
+                      NETXEN_NIC_TEST_LEN * ETH_GSTRING_LEN);
+               break;
+       case ETH_SS_STATS:
+               for (index = 0; index < NETXEN_NIC_STATS_LEN; index++) {
+                       memcpy(data + index * ETH_GSTRING_LEN,
+                              netxen_nic_gstrings_stats[index].stat_string,
+                              ETH_GSTRING_LEN);
+               }
+               break;
+       }
+}
+
+static int netxen_nic_get_stats_count(struct net_device *dev)
+{
+       return NETXEN_NIC_STATS_LEN;
+}
+
+static void
+netxen_nic_get_ethtool_stats(struct net_device *dev,
+                            struct ethtool_stats *stats, u64 * data)
+{
+       struct netxen_port *port = netdev_priv(dev);
+       int index;
+
+       for (index = 0; index < NETXEN_NIC_STATS_LEN; index++) {
+               char *p =
+                   (char *)port + netxen_nic_gstrings_stats[index].stat_offset;
+               data[index] =
+                   (netxen_nic_gstrings_stats[index].sizeof_stat ==
+                    sizeof(u64)) ? *(u64 *) p : *(u32 *) p;
+       }
+}
+
+struct ethtool_ops netxen_nic_ethtool_ops = {
+       .get_settings = netxen_nic_get_settings,
+       .set_settings = netxen_nic_set_settings,
+       .get_drvinfo = netxen_nic_get_drvinfo,
+       .get_regs_len = netxen_nic_get_regs_len,
+       .get_regs = netxen_nic_get_regs,
+       .get_wol = netxen_nic_get_wol,
+       .get_link = netxen_nic_get_link,
+       .get_eeprom_len = netxen_nic_get_eeprom_len,
+       .get_eeprom = netxen_nic_get_eeprom,
+       .get_ringparam = netxen_nic_get_ringparam,
+       .get_pauseparam = netxen_nic_get_pauseparam,
+       .set_pauseparam = netxen_nic_set_pauseparam,
+       .get_tx_csum = ethtool_op_get_tx_csum,
+       .set_tx_csum = ethtool_op_set_tx_csum,
+       .get_sg = ethtool_op_get_sg,
+       .set_sg = ethtool_op_set_sg,
+       .get_tso = ethtool_op_get_tso,
+       .set_tso = ethtool_op_set_tso,
+       .self_test_count = netxen_nic_diag_test_count,
+       .self_test = netxen_nic_diag_test,
+       .get_strings = netxen_nic_get_strings,
+       .get_stats_count = netxen_nic_get_stats_count,
+       .get_ethtool_stats = netxen_nic_get_ethtool_stats,
+       .get_perm_addr = ethtool_op_get_perm_addr,
+};