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cxgb2.c

/*****************************************************************************
 *                                                                           *
 * File: cxgb2.c                                                             *
 * $Revision: 1.25 $                                                         *
 * $Date: 2005/06/22 00:43:25 $                                              *
 * Description:                                                              *
 *  Chelsio 10Gb Ethernet Driver.                                            *
 *                                                                           *
 * This program is free software; you can redistribute it and/or modify      *
 * it under the terms of the GNU General Public License, version 2, as       *
 * published by the Free Software Foundation.                                *
 *                                                                           *
 * 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.                 *
 *                                                                           *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
 *                                                                           *
 * http://www.chelsio.com                                                    *
 *                                                                           *
 * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
 * All rights reserved.                                                      *
 *                                                                           *
 * Maintainers: maintainers@chelsio.com                                      *
 *                                                                           *
 * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
 *          Tina Yang               <tainay@chelsio.com>                     *
 *          Felix Marti             <felix@chelsio.com>                      *
 *          Scott Bardone           <sbardone@chelsio.com>                   *
 *          Kurt Ottaway            <kottaway@chelsio.com>                   *
 *          Frank DiMambro          <frank@chelsio.com>                      *
 *                                                                           *
 * History:                                                                  *
 *                                                                           *
 ****************************************************************************/

#include "common.h"
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/if_vlan.h>
#include <linux/mii.h>
#include <linux/sockios.h>
#include <linux/dma-mapping.h>
#include <asm/uaccess.h>

#include "cpl5_cmd.h"
#include "regs.h"
#include "gmac.h"
#include "cphy.h"
#include "sge.h"
#include "tp.h"
#include "espi.h"
#include "elmer0.h"

#include <linux/workqueue.h>

static inline void schedule_mac_stats_update(struct adapter *ap, int secs)
{
      schedule_delayed_work(&ap->stats_update_task, secs * HZ);
}

static inline void cancel_mac_stats_update(struct adapter *ap)
{
      cancel_delayed_work(&ap->stats_update_task);
}

#define MAX_CMDQ_ENTRIES      16384
#define MAX_CMDQ1_ENTRIES     1024
#define MAX_RX_BUFFERS        16384
#define MAX_RX_JUMBO_BUFFERS  16384
#define MAX_TX_BUFFERS_HIGH   16384U
#define MAX_TX_BUFFERS_LOW    1536U
#define MAX_TX_BUFFERS        1460U
#define MIN_FL_ENTRIES        32

#define DFLT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \
                   NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP |\
                   NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)

/*
 * The EEPROM is actually bigger but only the first few bytes are used so we
 * only report those.
 */
#define EEPROM_SIZE 32

MODULE_DESCRIPTION(DRV_DESCRIPTION);
MODULE_AUTHOR("Chelsio Communications");
MODULE_LICENSE("GPL");

static int dflt_msg_enable = DFLT_MSG_ENABLE;

module_param(dflt_msg_enable, int, 0);
MODULE_PARM_DESC(dflt_msg_enable, "Chelsio T1 default message enable bitmap");

#define HCLOCK 0x0
#define LCLOCK 0x1

/* T1 cards powersave mode */
static int t1_clock(struct adapter *adapter, int mode);
static int t1powersave = 1;   /* HW default is powersave mode. */

module_param(t1powersave, int, 0);
MODULE_PARM_DESC(t1powersave, "Enable/Disable T1 powersaving mode");

static int disable_msi = 0;
module_param(disable_msi, int, 0);
MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");

static const char pci_speed[][4] = {
      "33", "66", "100", "133"
};

/*
 * Setup MAC to receive the types of packets we want.
 */
static void t1_set_rxmode(struct net_device *dev)
{
      struct adapter *adapter = dev->priv;
      struct cmac *mac = adapter->port[dev->if_port].mac;
      struct t1_rx_mode rm;

      rm.dev = dev;
      rm.idx = 0;
      rm.list = dev->mc_list;
      mac->ops->set_rx_mode(mac, &rm);
}

static void link_report(struct port_info *p)
{
      if (!netif_carrier_ok(p->dev))
            printk(KERN_INFO "%s: link down\n", p->dev->name);
      else {
            const char *s = "10Mbps";

            switch (p->link_config.speed) {
                  case SPEED_10000: s = "10Gbps"; break;
                  case SPEED_1000:  s = "1000Mbps"; break;
                  case SPEED_100:   s = "100Mbps"; break;
            }

            printk(KERN_INFO "%s: link up, %s, %s-duplex\n",
                   p->dev->name, s,
                   p->link_config.duplex == DUPLEX_FULL ? "full" : "half");
      }
}

void t1_link_negotiated(struct adapter *adapter, int port_id, int link_stat,
                  int speed, int duplex, int pause)
{
      struct port_info *p = &adapter->port[port_id];

      if (link_stat != netif_carrier_ok(p->dev)) {
            if (link_stat)
                  netif_carrier_on(p->dev);
            else
                  netif_carrier_off(p->dev);
            link_report(p);

            /* multi-ports: inform toe */
            if ((speed > 0) && (adapter->params.nports > 1)) {
                  unsigned int sched_speed = 10;
                  switch (speed) {
                  case SPEED_1000:
                        sched_speed = 1000;
                        break;
                  case SPEED_100:
                        sched_speed = 100;
                        break;
                  case SPEED_10:
                        sched_speed = 10;
                        break;
                  }
                  t1_sched_update_parms(adapter->sge, port_id, 0, sched_speed);
            }
      }
}

static void link_start(struct port_info *p)
{
      struct cmac *mac = p->mac;

      mac->ops->reset(mac);
      if (mac->ops->macaddress_set)
            mac->ops->macaddress_set(mac, p->dev->dev_addr);
      t1_set_rxmode(p->dev);
      t1_link_start(p->phy, mac, &p->link_config);
      mac->ops->enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
}

static void enable_hw_csum(struct adapter *adapter)
{
      if (adapter->flags & TSO_CAPABLE)
            t1_tp_set_ip_checksum_offload(adapter->tp, 1);  /* for TSO only */
      if (adapter->flags & UDP_CSUM_CAPABLE)
            t1_tp_set_udp_checksum_offload(adapter->tp, 1);
      t1_tp_set_tcp_checksum_offload(adapter->tp, 1);
}

/*
 * Things to do upon first use of a card.
 * This must run with the rtnl lock held.
 */
static int cxgb_up(struct adapter *adapter)
{
      int err = 0;

      if (!(adapter->flags & FULL_INIT_DONE)) {
            err = t1_init_hw_modules(adapter);
            if (err)
                  goto out_err;

            enable_hw_csum(adapter);
            adapter->flags |= FULL_INIT_DONE;
      }

      t1_interrupts_clear(adapter);

      adapter->params.has_msi = !disable_msi && !pci_enable_msi(adapter->pdev);
      err = request_irq(adapter->pdev->irq, t1_interrupt,
                    adapter->params.has_msi ? 0 : IRQF_SHARED,
                    adapter->name, adapter);
      if (err) {
            if (adapter->params.has_msi)
                  pci_disable_msi(adapter->pdev);

            goto out_err;
      }

      t1_sge_start(adapter->sge);
      t1_interrupts_enable(adapter);
out_err:
      return err;
}

/*
 * Release resources when all the ports have been stopped.
 */
static void cxgb_down(struct adapter *adapter)
{
      t1_sge_stop(adapter->sge);
      t1_interrupts_disable(adapter);
      free_irq(adapter->pdev->irq, adapter);
      if (adapter->params.has_msi)
            pci_disable_msi(adapter->pdev);
}

static int cxgb_open(struct net_device *dev)
{
      int err;
      struct adapter *adapter = dev->priv;
      int other_ports = adapter->open_device_map & PORT_MASK;

      napi_enable(&adapter->napi);
      if (!adapter->open_device_map && (err = cxgb_up(adapter)) < 0) {
            napi_disable(&adapter->napi);
            return err;
      }

      __set_bit(dev->if_port, &adapter->open_device_map);
      link_start(&adapter->port[dev->if_port]);
      netif_start_queue(dev);
      if (!other_ports && adapter->params.stats_update_period)
            schedule_mac_stats_update(adapter,
                                adapter->params.stats_update_period);
      return 0;
}

static int cxgb_close(struct net_device *dev)
{
      struct adapter *adapter = dev->priv;
      struct port_info *p = &adapter->port[dev->if_port];
      struct cmac *mac = p->mac;

      netif_stop_queue(dev);
      napi_disable(&adapter->napi);
      mac->ops->disable(mac, MAC_DIRECTION_TX | MAC_DIRECTION_RX);
      netif_carrier_off(dev);

      clear_bit(dev->if_port, &adapter->open_device_map);
      if (adapter->params.stats_update_period &&
          !(adapter->open_device_map & PORT_MASK)) {
            /* Stop statistics accumulation. */
            smp_mb__after_clear_bit();
            spin_lock(&adapter->work_lock);   /* sync with update task */
            spin_unlock(&adapter->work_lock);
            cancel_mac_stats_update(adapter);
      }

      if (!adapter->open_device_map)
            cxgb_down(adapter);
      return 0;
}

static struct net_device_stats *t1_get_stats(struct net_device *dev)
{
      struct adapter *adapter = dev->priv;
      struct port_info *p = &adapter->port[dev->if_port];
      struct net_device_stats *ns = &p->netstats;
      const struct cmac_statistics *pstats;

      /* Do a full update of the MAC stats */
      pstats = p->mac->ops->statistics_update(p->mac,
                                    MAC_STATS_UPDATE_FULL);

      ns->tx_packets = pstats->TxUnicastFramesOK +
            pstats->TxMulticastFramesOK + pstats->TxBroadcastFramesOK;

      ns->rx_packets = pstats->RxUnicastFramesOK +
            pstats->RxMulticastFramesOK + pstats->RxBroadcastFramesOK;

      ns->tx_bytes = pstats->TxOctetsOK;
      ns->rx_bytes = pstats->RxOctetsOK;

      ns->tx_errors = pstats->TxLateCollisions + pstats->TxLengthErrors +
            pstats->TxUnderrun + pstats->TxFramesAbortedDueToXSCollisions;
      ns->rx_errors = pstats->RxDataErrors + pstats->RxJabberErrors +
            pstats->RxFCSErrors + pstats->RxAlignErrors +
            pstats->RxSequenceErrors + pstats->RxFrameTooLongErrors +
            pstats->RxSymbolErrors + pstats->RxRuntErrors;

      ns->multicast  = pstats->RxMulticastFramesOK;
      ns->collisions = pstats->TxTotalCollisions;

      /* detailed rx_errors */
      ns->rx_length_errors = pstats->RxFrameTooLongErrors +
            pstats->RxJabberErrors;
      ns->rx_over_errors   = 0;
      ns->rx_crc_errors    = pstats->RxFCSErrors;
      ns->rx_frame_errors  = pstats->RxAlignErrors;
      ns->rx_fifo_errors   = 0;
      ns->rx_missed_errors = 0;

      /* detailed tx_errors */
      ns->tx_aborted_errors   = pstats->TxFramesAbortedDueToXSCollisions;
      ns->tx_carrier_errors   = 0;
      ns->tx_fifo_errors      = pstats->TxUnderrun;
      ns->tx_heartbeat_errors = 0;
      ns->tx_window_errors    = pstats->TxLateCollisions;
      return ns;
}

static u32 get_msglevel(struct net_device *dev)
{
      struct adapter *adapter = dev->priv;

      return adapter->msg_enable;
}

static void set_msglevel(struct net_device *dev, u32 val)
{
      struct adapter *adapter = dev->priv;

      adapter->msg_enable = val;
}

static char stats_strings[][ETH_GSTRING_LEN] = {
      "TxOctetsOK",
      "TxOctetsBad",
      "TxUnicastFramesOK",
      "TxMulticastFramesOK",
      "TxBroadcastFramesOK",
      "TxPauseFrames",
      "TxFramesWithDeferredXmissions",
      "TxLateCollisions",
      "TxTotalCollisions",
      "TxFramesAbortedDueToXSCollisions",
      "TxUnderrun",
      "TxLengthErrors",
      "TxInternalMACXmitError",
      "TxFramesWithExcessiveDeferral",
      "TxFCSErrors",
      "TxJumboFramesOk",
      "TxJumboOctetsOk",
      
      "RxOctetsOK",
      "RxOctetsBad",
      "RxUnicastFramesOK",
      "RxMulticastFramesOK",
      "RxBroadcastFramesOK",
      "RxPauseFrames",
      "RxFCSErrors",
      "RxAlignErrors",
      "RxSymbolErrors",
      "RxDataErrors",
      "RxSequenceErrors",
      "RxRuntErrors",
      "RxJabberErrors",
      "RxInternalMACRcvError",
      "RxInRangeLengthErrors",
      "RxOutOfRangeLengthField",
      "RxFrameTooLongErrors",
      "RxJumboFramesOk",
      "RxJumboOctetsOk",

      /* Port stats */
      "RxCsumGood",
      "TxCsumOffload",
      "TxTso",
      "RxVlan",
      "TxVlan",
      "TxNeedHeadroom", 
      
      /* Interrupt stats */
      "rx drops",
      "pure_rsps",
      "unhandled irqs",
      "respQ_empty",
      "respQ_overflow",
      "freelistQ_empty",
      "pkt_too_big",
      "pkt_mismatch",
      "cmdQ_full0",
      "cmdQ_full1",

      "espi_DIP2ParityErr",
      "espi_DIP4Err",
      "espi_RxDrops",
      "espi_TxDrops",
      "espi_RxOvfl",
      "espi_ParityErr"
};

#define T2_REGMAP_SIZE (3 * 1024)

static int get_regs_len(struct net_device *dev)
{
      return T2_REGMAP_SIZE;
}

static void get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{
      struct adapter *adapter = dev->priv;

      strcpy(info->driver, DRV_NAME);
      strcpy(info->version, DRV_VERSION);
      strcpy(info->fw_version, "N/A");
      strcpy(info->bus_info, pci_name(adapter->pdev));
}

static int get_sset_count(struct net_device *dev, int sset)
{
      switch (sset) {
      case ETH_SS_STATS:
            return ARRAY_SIZE(stats_strings);
      default:
            return -EOPNOTSUPP;
      }
}

static void get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
      if (stringset == ETH_SS_STATS)
            memcpy(data, stats_strings, sizeof(stats_strings));
}

static void get_stats(struct net_device *dev, struct ethtool_stats *stats,
                  u64 *data)
{
      struct adapter *adapter = dev->priv;
      struct cmac *mac = adapter->port[dev->if_port].mac;
      const struct cmac_statistics *s;
      const struct sge_intr_counts *t;
      struct sge_port_stats ss;

      s = mac->ops->statistics_update(mac, MAC_STATS_UPDATE_FULL);
      t = t1_sge_get_intr_counts(adapter->sge);
      t1_sge_get_port_stats(adapter->sge, dev->if_port, &ss);

      *data++ = s->TxOctetsOK;
      *data++ = s->TxOctetsBad;
      *data++ = s->TxUnicastFramesOK;
      *data++ = s->TxMulticastFramesOK;
      *data++ = s->TxBroadcastFramesOK;
      *data++ = s->TxPauseFrames;
      *data++ = s->TxFramesWithDeferredXmissions;
      *data++ = s->TxLateCollisions;
      *data++ = s->TxTotalCollisions;
      *data++ = s->TxFramesAbortedDueToXSCollisions;
      *data++ = s->TxUnderrun;
      *data++ = s->TxLengthErrors;
      *data++ = s->TxInternalMACXmitError;
      *data++ = s->TxFramesWithExcessiveDeferral;
      *data++ = s->TxFCSErrors;
      *data++ = s->TxJumboFramesOK;
      *data++ = s->TxJumboOctetsOK;

      *data++ = s->RxOctetsOK;
      *data++ = s->RxOctetsBad;
      *data++ = s->RxUnicastFramesOK;
      *data++ = s->RxMulticastFramesOK;
      *data++ = s->RxBroadcastFramesOK;
      *data++ = s->RxPauseFrames;
      *data++ = s->RxFCSErrors;
      *data++ = s->RxAlignErrors;
      *data++ = s->RxSymbolErrors;
      *data++ = s->RxDataErrors;
      *data++ = s->RxSequenceErrors;
      *data++ = s->RxRuntErrors;
      *data++ = s->RxJabberErrors;
      *data++ = s->RxInternalMACRcvError;
      *data++ = s->RxInRangeLengthErrors;
      *data++ = s->RxOutOfRangeLengthField;
      *data++ = s->RxFrameTooLongErrors;
      *data++ = s->RxJumboFramesOK;
      *data++ = s->RxJumboOctetsOK;

      *data++ = ss.rx_cso_good;
      *data++ = ss.tx_cso;
      *data++ = ss.tx_tso;
      *data++ = ss.vlan_xtract;
      *data++ = ss.vlan_insert;
      *data++ = ss.tx_need_hdrroom;
      
      *data++ = t->rx_drops;
      *data++ = t->pure_rsps;
      *data++ = t->unhandled_irqs;
      *data++ = t->respQ_empty;
      *data++ = t->respQ_overflow;
      *data++ = t->freelistQ_empty;
      *data++ = t->pkt_too_big;
      *data++ = t->pkt_mismatch;
      *data++ = t->cmdQ_full[0];
      *data++ = t->cmdQ_full[1];

      if (adapter->espi) {
            const struct espi_intr_counts *e;

            e = t1_espi_get_intr_counts(adapter->espi);
            *data++ = e->DIP2_parity_err;
            *data++ = e->DIP4_err;
            *data++ = e->rx_drops;
            *data++ = e->tx_drops;
            *data++ = e->rx_ovflw;
            *data++ = e->parity_err;
      }
}

static inline void reg_block_dump(struct adapter *ap, void *buf,
                          unsigned int start, unsigned int end)
{
      u32 *p = buf + start;

      for ( ; start <= end; start += sizeof(u32))
            *p++ = readl(ap->regs + start);
}

static void get_regs(struct net_device *dev, struct ethtool_regs *regs,
                 void *buf)
{
      struct adapter *ap = dev->priv;

      /*
       * Version scheme: bits 0..9: chip version, bits 10..15: chip revision
       */
      regs->version = 2;

      memset(buf, 0, T2_REGMAP_SIZE);
      reg_block_dump(ap, buf, 0, A_SG_RESPACCUTIMER);
      reg_block_dump(ap, buf, A_MC3_CFG, A_MC4_INT_CAUSE);
      reg_block_dump(ap, buf, A_TPI_ADDR, A_TPI_PAR);
      reg_block_dump(ap, buf, A_TP_IN_CONFIG, A_TP_TX_DROP_COUNT);
      reg_block_dump(ap, buf, A_RAT_ROUTE_CONTROL, A_RAT_INTR_CAUSE);
      reg_block_dump(ap, buf, A_CSPI_RX_AE_WM, A_CSPI_INTR_ENABLE);
      reg_block_dump(ap, buf, A_ESPI_SCH_TOKEN0, A_ESPI_GOSTAT);
      reg_block_dump(ap, buf, A_ULP_ULIMIT, A_ULP_PIO_CTRL);
      reg_block_dump(ap, buf, A_PL_ENABLE, A_PL_CAUSE);
      reg_block_dump(ap, buf, A_MC5_CONFIG, A_MC5_MASK_WRITE_CMD);
}

static int get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
      struct adapter *adapter = dev->priv;
      struct port_info *p = &adapter->port[dev->if_port];

      cmd->supported = p->link_config.supported;
      cmd->advertising = p->link_config.advertising;

      if (netif_carrier_ok(dev)) {
            cmd->speed = p->link_config.speed;
            cmd->duplex = p->link_config.duplex;
      } else {
            cmd->speed = -1;
            cmd->duplex = -1;
      }

      cmd->port = (cmd->supported & SUPPORTED_TP) ? PORT_TP : PORT_FIBRE;
      cmd->phy_address = p->phy->addr;
      cmd->transceiver = XCVR_EXTERNAL;
      cmd->autoneg = p->link_config.autoneg;
      cmd->maxtxpkt = 0;
      cmd->maxrxpkt = 0;
      return 0;
}

static int speed_duplex_to_caps(int speed, int duplex)
{
      int cap = 0;

      switch (speed) {
      case SPEED_10:
            if (duplex == DUPLEX_FULL)
                  cap = SUPPORTED_10baseT_Full;
            else
                  cap = SUPPORTED_10baseT_Half;
            break;
      case SPEED_100:
            if (duplex == DUPLEX_FULL)
                  cap = SUPPORTED_100baseT_Full;
            else
                  cap = SUPPORTED_100baseT_Half;
            break;
      case SPEED_1000:
            if (duplex == DUPLEX_FULL)
                  cap = SUPPORTED_1000baseT_Full;
            else
                  cap = SUPPORTED_1000baseT_Half;
            break;
      case SPEED_10000:
            if (duplex == DUPLEX_FULL)
                  cap = SUPPORTED_10000baseT_Full;
      }
      return cap;
}

#define ADVERTISED_MASK (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \
                  ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \
                  ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full | \
                  ADVERTISED_10000baseT_Full)

static int set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
      struct adapter *adapter = dev->priv;
      struct port_info *p = &adapter->port[dev->if_port];
      struct link_config *lc = &p->link_config;

      if (!(lc->supported & SUPPORTED_Autoneg))
            return -EOPNOTSUPP;             /* can't change speed/duplex */

      if (cmd->autoneg == AUTONEG_DISABLE) {
            int cap = speed_duplex_to_caps(cmd->speed, cmd->duplex);

            if (!(lc->supported & cap) || cmd->speed == SPEED_1000)
                  return -EINVAL;
            lc->requested_speed = cmd->speed;
            lc->requested_duplex = cmd->duplex;
            lc->advertising = 0;
      } else {
            cmd->advertising &= ADVERTISED_MASK;
            if (cmd->advertising & (cmd->advertising - 1))
                  cmd->advertising = lc->supported;
            cmd->advertising &= lc->supported;
            if (!cmd->advertising)
                  return -EINVAL;
            lc->requested_speed = SPEED_INVALID;
            lc->requested_duplex = DUPLEX_INVALID;
            lc->advertising = cmd->advertising | ADVERTISED_Autoneg;
      }
      lc->autoneg = cmd->autoneg;
      if (netif_running(dev))
            t1_link_start(p->phy, p->mac, lc);
      return 0;
}

static void get_pauseparam(struct net_device *dev,
                     struct ethtool_pauseparam *epause)
{
      struct adapter *adapter = dev->priv;
      struct port_info *p = &adapter->port[dev->if_port];

      epause->autoneg = (p->link_config.requested_fc & PAUSE_AUTONEG) != 0;
      epause->rx_pause = (p->link_config.fc & PAUSE_RX) != 0;
      epause->tx_pause = (p->link_config.fc & PAUSE_TX) != 0;
}

static int set_pauseparam(struct net_device *dev,
                    struct ethtool_pauseparam *epause)
{
      struct adapter *adapter = dev->priv;
      struct port_info *p = &adapter->port[dev->if_port];
      struct link_config *lc = &p->link_config;

      if (epause->autoneg == AUTONEG_DISABLE)
            lc->requested_fc = 0;
      else if (lc->supported & SUPPORTED_Autoneg)
            lc->requested_fc = PAUSE_AUTONEG;
      else
            return -EINVAL;

      if (epause->rx_pause)
            lc->requested_fc |= PAUSE_RX;
      if (epause->tx_pause)
            lc->requested_fc |= PAUSE_TX;
      if (lc->autoneg == AUTONEG_ENABLE) {
            if (netif_running(dev))
                  t1_link_start(p->phy, p->mac, lc);
      } else {
            lc->fc = lc->requested_fc & (PAUSE_RX | PAUSE_TX);
            if (netif_running(dev))
                  p->mac->ops->set_speed_duplex_fc(p->mac, -1, -1,
                                           lc->fc);
      }
      return 0;
}

static u32 get_rx_csum(struct net_device *dev)
{
      struct adapter *adapter = dev->priv;

      return (adapter->flags & RX_CSUM_ENABLED) != 0;
}

static int set_rx_csum(struct net_device *dev, u32 data)
{
      struct adapter *adapter = dev->priv;

      if (data)
            adapter->flags |= RX_CSUM_ENABLED;
      else
            adapter->flags &= ~RX_CSUM_ENABLED;
      return 0;
}

static int set_tso(struct net_device *dev, u32 value)
{
      struct adapter *adapter = dev->priv;

      if (!(adapter->flags & TSO_CAPABLE))
            return value ? -EOPNOTSUPP : 0;
      return ethtool_op_set_tso(dev, value);
}

static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
{
      struct adapter *adapter = dev->priv;
      int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;

      e->rx_max_pending = MAX_RX_BUFFERS;
      e->rx_mini_max_pending = 0;
      e->rx_jumbo_max_pending = MAX_RX_JUMBO_BUFFERS;
      e->tx_max_pending = MAX_CMDQ_ENTRIES;

      e->rx_pending = adapter->params.sge.freelQ_size[!jumbo_fl];
      e->rx_mini_pending = 0;
      e->rx_jumbo_pending = adapter->params.sge.freelQ_size[jumbo_fl];
      e->tx_pending = adapter->params.sge.cmdQ_size[0];
}

static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
{
      struct adapter *adapter = dev->priv;
      int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;

      if (e->rx_pending > MAX_RX_BUFFERS || e->rx_mini_pending ||
          e->rx_jumbo_pending > MAX_RX_JUMBO_BUFFERS ||
          e->tx_pending > MAX_CMDQ_ENTRIES ||
          e->rx_pending < MIN_FL_ENTRIES ||
          e->rx_jumbo_pending < MIN_FL_ENTRIES ||
          e->tx_pending < (adapter->params.nports + 1) * (MAX_SKB_FRAGS + 1))
            return -EINVAL;

      if (adapter->flags & FULL_INIT_DONE)
            return -EBUSY;

      adapter->params.sge.freelQ_size[!jumbo_fl] = e->rx_pending;
      adapter->params.sge.freelQ_size[jumbo_fl] = e->rx_jumbo_pending;
      adapter->params.sge.cmdQ_size[0] = e->tx_pending;
      adapter->params.sge.cmdQ_size[1] = e->tx_pending > MAX_CMDQ1_ENTRIES ?
            MAX_CMDQ1_ENTRIES : e->tx_pending;
      return 0;
}

static int set_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
{
      struct adapter *adapter = dev->priv;

      adapter->params.sge.rx_coalesce_usecs = c->rx_coalesce_usecs;
      adapter->params.sge.coalesce_enable = c->use_adaptive_rx_coalesce;
      adapter->params.sge.sample_interval_usecs = c->rate_sample_interval;
      t1_sge_set_coalesce_params(adapter->sge, &adapter->params.sge);
      return 0;
}

static int get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
{
      struct adapter *adapter = dev->priv;

      c->rx_coalesce_usecs = adapter->params.sge.rx_coalesce_usecs;
      c->rate_sample_interval = adapter->params.sge.sample_interval_usecs;
      c->use_adaptive_rx_coalesce = adapter->params.sge.coalesce_enable;
      return 0;
}

static int get_eeprom_len(struct net_device *dev)
{
      struct adapter *adapter = dev->priv;

      return t1_is_asic(adapter) ? EEPROM_SIZE : 0;
}

#define EEPROM_MAGIC(ap) \
      (PCI_VENDOR_ID_CHELSIO | ((ap)->params.chip_version << 16))

static int get_eeprom(struct net_device *dev, struct ethtool_eeprom *e,
                  u8 *data)
{
      int i;
      u8 buf[EEPROM_SIZE] __attribute__((aligned(4)));
      struct adapter *adapter = dev->priv;

      e->magic = EEPROM_MAGIC(adapter);
      for (i = e->offset & ~3; i < e->offset + e->len; i += sizeof(u32))
            t1_seeprom_read(adapter, i, (u32 *)&buf[i]);
      memcpy(data, buf + e->offset, e->len);
      return 0;
}

static const struct ethtool_ops t1_ethtool_ops = {
      .get_settings      = get_settings,
      .set_settings      = set_settings,
      .get_drvinfo       = get_drvinfo,
      .get_msglevel      = get_msglevel,
      .set_msglevel      = set_msglevel,
      .get_ringparam     = get_sge_param,
      .set_ringparam     = set_sge_param,
      .get_coalesce      = get_coalesce,
      .set_coalesce      = set_coalesce,
      .get_eeprom_len    = get_eeprom_len,
      .get_eeprom        = get_eeprom,
      .get_pauseparam    = get_pauseparam,
      .set_pauseparam    = set_pauseparam,
      .get_rx_csum       = get_rx_csum,
      .set_rx_csum       = set_rx_csum,
      .set_tx_csum       = ethtool_op_set_tx_csum,
      .set_sg            = ethtool_op_set_sg,
      .get_link          = ethtool_op_get_link,
      .get_strings       = get_strings,
      .get_sset_count      = get_sset_count,
      .get_ethtool_stats = get_stats,
      .get_regs_len      = get_regs_len,
      .get_regs          = get_regs,
      .set_tso           = set_tso,
};

static int t1_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
{
      struct adapter *adapter = dev->priv;
      struct mii_ioctl_data *data = if_mii(req);

      switch (cmd) {
      case SIOCGMIIPHY:
            data->phy_id = adapter->port[dev->if_port].phy->addr;
            /* FALLTHRU */
      case SIOCGMIIREG: {
            struct cphy *phy = adapter->port[dev->if_port].phy;
            u32 val;

            if (!phy->mdio_read)
                  return -EOPNOTSUPP;
            phy->mdio_read(adapter, data->phy_id, 0, data->reg_num & 0x1f,
                         &val);
            data->val_out = val;
            break;
      }
      case SIOCSMIIREG: {
            struct cphy *phy = adapter->port[dev->if_port].phy;

            if (!capable(CAP_NET_ADMIN))
                return -EPERM;
            if (!phy->mdio_write)
                  return -EOPNOTSUPP;
            phy->mdio_write(adapter, data->phy_id, 0, data->reg_num & 0x1f,
                          data->val_in);
            break;
      }

      default:
            return -EOPNOTSUPP;
      }
      return 0;
}

static int t1_change_mtu(struct net_device *dev, int new_mtu)
{
      int ret;
      struct adapter *adapter = dev->priv;
      struct cmac *mac = adapter->port[dev->if_port].mac;

      if (!mac->ops->set_mtu)
            return -EOPNOTSUPP;
      if (new_mtu < 68)
            return -EINVAL;
      if ((ret = mac->ops->set_mtu(mac, new_mtu)))
            return ret;
      dev->mtu = new_mtu;
      return 0;
}

static int t1_set_mac_addr(struct net_device *dev, void *p)
{
      struct adapter *adapter = dev->priv;
      struct cmac *mac = adapter->port[dev->if_port].mac;
      struct sockaddr *addr = p;

      if (!mac->ops->macaddress_set)
            return -EOPNOTSUPP;

      memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
      mac->ops->macaddress_set(mac, dev->dev_addr);
      return 0;
}

#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
static void vlan_rx_register(struct net_device *dev,
                           struct vlan_group *grp)
{
      struct adapter *adapter = dev->priv;

      spin_lock_irq(&adapter->async_lock);
      adapter->vlan_grp = grp;
      t1_set_vlan_accel(adapter, grp != NULL);
      spin_unlock_irq(&adapter->async_lock);
}
#endif

#ifdef CONFIG_NET_POLL_CONTROLLER
static void t1_netpoll(struct net_device *dev)
{
      unsigned long flags;
      struct adapter *adapter = dev->priv;

      local_irq_save(flags);
      t1_interrupt(adapter->pdev->irq, adapter);
      local_irq_restore(flags);
}
#endif

/*
 * Periodic accumulation of MAC statistics.  This is used only if the MAC
 * does not have any other way to prevent stats counter overflow.
 */
static void mac_stats_task(struct work_struct *work)
{
      int i;
      struct adapter *adapter =
            container_of(work, struct adapter, stats_update_task.work);

      for_each_port(adapter, i) {
            struct port_info *p = &adapter->port[i];

            if (netif_running(p->dev))
                  p->mac->ops->statistics_update(p->mac,
                                           MAC_STATS_UPDATE_FAST);
      }

      /* Schedule the next statistics update if any port is active. */
      spin_lock(&adapter->work_lock);
      if (adapter->open_device_map & PORT_MASK)
            schedule_mac_stats_update(adapter,
                                adapter->params.stats_update_period);
      spin_unlock(&adapter->work_lock);
}

/*
 * Processes elmer0 external interrupts in process context.
 */
static void ext_intr_task(struct work_struct *work)
{
      struct adapter *adapter =
            container_of(work, struct adapter, ext_intr_handler_task);

      t1_elmer0_ext_intr_handler(adapter);

      /* Now reenable external interrupts */
      spin_lock_irq(&adapter->async_lock);
      adapter->slow_intr_mask |= F_PL_INTR_EXT;
      writel(F_PL_INTR_EXT, adapter->regs + A_PL_CAUSE);
      writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
               adapter->regs + A_PL_ENABLE);
      spin_unlock_irq(&adapter->async_lock);
}

/*
 * Interrupt-context handler for elmer0 external interrupts.
 */
void t1_elmer0_ext_intr(struct adapter *adapter)
{
      /*
       * Schedule a task to handle external interrupts as we require
       * a process context.  We disable EXT interrupts in the interim
       * and let the task reenable them when it's done.
       */
      adapter->slow_intr_mask &= ~F_PL_INTR_EXT;
      writel(adapter->slow_intr_mask | F_PL_INTR_SGE_DATA,
               adapter->regs + A_PL_ENABLE);
      schedule_work(&adapter->ext_intr_handler_task);
}

void t1_fatal_err(struct adapter *adapter)
{
      if (adapter->flags & FULL_INIT_DONE) {
            t1_sge_stop(adapter->sge);
            t1_interrupts_disable(adapter);
      }
      CH_ALERT("%s: encountered fatal error, operation suspended\n",
             adapter->name);
}

static int __devinit init_one(struct pci_dev *pdev,
                        const struct pci_device_id *ent)
{
      static int version_printed;

      int i, err, pci_using_dac = 0;
      unsigned long mmio_start, mmio_len;
      const struct board_info *bi;
      struct adapter *adapter = NULL;
      struct port_info *pi;

      if (!version_printed) {
            printk(KERN_INFO "%s - version %s\n", DRV_DESCRIPTION,
                   DRV_VERSION);
            ++version_printed;
      }

      err = pci_enable_device(pdev);
      if (err)
            return err;

      if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
            CH_ERR("%s: cannot find PCI device memory base address\n",
                   pci_name(pdev));
            err = -ENODEV;
            goto out_disable_pdev;
      }

      if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
            pci_using_dac = 1;

            if (pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) {
                  CH_ERR("%s: unable to obtain 64-bit DMA for"
                         "consistent allocations\n", pci_name(pdev));
                  err = -ENODEV;
                  goto out_disable_pdev;
            }

      } else if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) != 0) {
            CH_ERR("%s: no usable DMA configuration\n", pci_name(pdev));
            goto out_disable_pdev;
      }

      err = pci_request_regions(pdev, DRV_NAME);
      if (err) {
            CH_ERR("%s: cannot obtain PCI resources\n", pci_name(pdev));
            goto out_disable_pdev;
      }

      pci_set_master(pdev);

      mmio_start = pci_resource_start(pdev, 0);
      mmio_len = pci_resource_len(pdev, 0);
      bi = t1_get_board_info(ent->driver_data);

      for (i = 0; i < bi->port_number; ++i) {
            struct net_device *netdev;

            netdev = alloc_etherdev(adapter ? 0 : sizeof(*adapter));
            if (!netdev) {
                  err = -ENOMEM;
                  goto out_free_dev;
            }

            SET_NETDEV_DEV(netdev, &pdev->dev);

            if (!adapter) {
                  adapter = netdev->priv;
                  adapter->pdev = pdev;
                  adapter->port[0].dev = netdev;  /* so we don't leak it */

                  adapter->regs = ioremap(mmio_start, mmio_len);
                  if (!adapter->regs) {
                        CH_ERR("%s: cannot map device registers\n",
                               pci_name(pdev));
                        err = -ENOMEM;
                        goto out_free_dev;
                  }

                  if (t1_get_board_rev(adapter, bi, &adapter->params)) {
                        err = -ENODEV;      /* Can't handle this chip rev */
                        goto out_free_dev;
                  }

                  adapter->name = pci_name(pdev);
                  adapter->msg_enable = dflt_msg_enable;
                  adapter->mmio_len = mmio_len;

                  spin_lock_init(&adapter->tpi_lock);
                  spin_lock_init(&adapter->work_lock);
                  spin_lock_init(&adapter->async_lock);
                  spin_lock_init(&adapter->mac_lock);

                  INIT_WORK(&adapter->ext_intr_handler_task,
                          ext_intr_task);
                  INIT_DELAYED_WORK(&adapter->stats_update_task,
                                mac_stats_task);

                  pci_set_drvdata(pdev, netdev);
            }

            pi = &adapter->port[i];
            pi->dev = netdev;
            netif_carrier_off(netdev);
            netdev->irq = pdev->irq;
            netdev->if_port = i;
            netdev->mem_start = mmio_start;
            netdev->mem_end = mmio_start + mmio_len - 1;
            netdev->priv = adapter;
            netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM;
            netdev->features |= NETIF_F_LLTX;

            adapter->flags |= RX_CSUM_ENABLED | TCP_CSUM_CAPABLE;
            if (pci_using_dac)
                  netdev->features |= NETIF_F_HIGHDMA;
            if (vlan_tso_capable(adapter)) {
#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
                  adapter->flags |= VLAN_ACCEL_CAPABLE;
                  netdev->features |=
                        NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
                  netdev->vlan_rx_register = vlan_rx_register;
#endif

                  /* T204: disable TSO */
                  if (!(is_T2(adapter)) || bi->port_number != 4) {
                        adapter->flags |= TSO_CAPABLE;
                        netdev->features |= NETIF_F_TSO;
                  }
            }

            netdev->open = cxgb_open;
            netdev->stop = cxgb_close;
            netdev->hard_start_xmit = t1_start_xmit;
            netdev->hard_header_len += (adapter->flags & TSO_CAPABLE) ?
                  sizeof(struct cpl_tx_pkt_lso) : sizeof(struct cpl_tx_pkt);
            netdev->get_stats = t1_get_stats;
            netdev->set_multicast_list = t1_set_rxmode;
            netdev->do_ioctl = t1_ioctl;
            netdev->change_mtu = t1_change_mtu;
            netdev->set_mac_address = t1_set_mac_addr;
#ifdef CONFIG_NET_POLL_CONTROLLER
            netdev->poll_controller = t1_netpoll;
#endif
#ifdef CONFIG_CHELSIO_T1_NAPI
            netif_napi_add(netdev, &adapter->napi, t1_poll, 64);
#endif

            SET_ETHTOOL_OPS(netdev, &t1_ethtool_ops);
      }

      if (t1_init_sw_modules(adapter, bi) < 0) {
            err = -ENODEV;
            goto out_free_dev;
      }

      /*
       * The card is now ready to go.  If any errors occur during device
       * registration we do not fail the whole card but rather proceed only
       * with the ports we manage to register successfully.  However we must
       * register at least one net device.
       */
      for (i = 0; i < bi->port_number; ++i) {
            err = register_netdev(adapter->port[i].dev);
            if (err)
                  CH_WARN("%s: cannot register net device %s, skipping\n",
                        pci_name(pdev), adapter->port[i].dev->name);
            else {
                  /*
                   * Change the name we use for messages to the name of
                   * the first successfully registered interface.
                   */
                  if (!adapter->registered_device_map)
                        adapter->name = adapter->port[i].dev->name;

                  __set_bit(i, &adapter->registered_device_map);
            }
      }
      if (!adapter->registered_device_map) {
            CH_ERR("%s: could not register any net devices\n",
                   pci_name(pdev));
            goto out_release_adapter_res;
      }

      printk(KERN_INFO "%s: %s (rev %d), %s %dMHz/%d-bit\n", adapter->name,
             bi->desc, adapter->params.chip_revision,
             adapter->params.pci.is_pcix ? "PCIX" : "PCI",
             adapter->params.pci.speed, adapter->params.pci.width);

      /*
       * Set the T1B ASIC and memory clocks.
       */
      if (t1powersave)
            adapter->t1powersave = LCLOCK;      /* HW default is powersave mode. */
      else
            adapter->t1powersave = HCLOCK;
      if (t1_is_T1B(adapter))
            t1_clock(adapter, t1powersave);

      return 0;

out_release_adapter_res:
      t1_free_sw_modules(adapter);
out_free_dev:
      if (adapter) {
            if (adapter->regs)
                  iounmap(adapter->regs);
            for (i = bi->port_number - 1; i >= 0; --i)
                  if (adapter->port[i].dev)
                        free_netdev(adapter->port[i].dev);
      }
      pci_release_regions(pdev);
out_disable_pdev:
      pci_disable_device(pdev);
      pci_set_drvdata(pdev, NULL);
      return err;
}

static void bit_bang(struct adapter *adapter, int bitdata, int nbits)
{
      int data;
      int i;
      u32 val;

      enum {
            S_CLOCK = 1 << 3,
            S_DATA = 1 << 4
      };

      for (i = (nbits - 1); i > -1; i--) {

            udelay(50);

            data = ((bitdata >> i) & 0x1);
            __t1_tpi_read(adapter, A_ELMER0_GPO, &val);

            if (data)
                  val |= S_DATA;
            else
                  val &= ~S_DATA;

            udelay(50);

            /* Set SCLOCK low */
            val &= ~S_CLOCK;
            __t1_tpi_write(adapter, A_ELMER0_GPO, val);

            udelay(50);

            /* Write SCLOCK high */
            val |= S_CLOCK;
            __t1_tpi_write(adapter, A_ELMER0_GPO, val);

      }
}

static int t1_clock(struct adapter *adapter, int mode)
{
      u32 val;
      int M_CORE_VAL;
      int M_MEM_VAL;

      enum {
            M_CORE_BITS = 9,
            T_CORE_VAL  = 0,
            T_CORE_BITS = 2,
            N_CORE_VAL  = 0,
            N_CORE_BITS = 2,
            M_MEM_BITS  = 9,
            T_MEM_VAL   = 0,
            T_MEM_BITS  = 2,
            N_MEM_VAL   = 0,
            N_MEM_BITS  = 2,
            NP_LOAD           = 1 << 17,
            S_LOAD_MEM  = 1 << 5,
            S_LOAD_CORE = 1 << 6,
            S_CLOCK           = 1 << 3
      };

      if (!t1_is_T1B(adapter))
            return -ENODEV;   /* Can't re-clock this chip. */

      if (mode & 2)
            return 0;   /* show current mode. */

      if ((adapter->t1powersave & 1) == (mode & 1))
            return -EALREADY; /* ASIC already running in mode. */

      if ((mode & 1) == HCLOCK) {
            M_CORE_VAL = 0x14;
            M_MEM_VAL = 0x18;
            adapter->t1powersave = HCLOCK;      /* overclock */
      } else {
            M_CORE_VAL = 0xe;
            M_MEM_VAL = 0x10;
            adapter->t1powersave = LCLOCK;      /* underclock */
      }

      /* Don't interrupt this serial stream! */
      spin_lock(&adapter->tpi_lock);

      /* Initialize for ASIC core */
      __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
      val |= NP_LOAD;
      udelay(50);
      __t1_tpi_write(adapter, A_ELMER0_GPO, val);
      udelay(50);
      __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
      val &= ~S_LOAD_CORE;
      val &= ~S_CLOCK;
      __t1_tpi_write(adapter, A_ELMER0_GPO, val);
      udelay(50);

      /* Serial program the ASIC clock synthesizer */
      bit_bang(adapter, T_CORE_VAL, T_CORE_BITS);
      bit_bang(adapter, N_CORE_VAL, N_CORE_BITS);
      bit_bang(adapter, M_CORE_VAL, M_CORE_BITS);
      udelay(50);

      /* Finish ASIC core */
      __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
      val |= S_LOAD_CORE;
      udelay(50);
      __t1_tpi_write(adapter, A_ELMER0_GPO, val);
      udelay(50);
      __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
      val &= ~S_LOAD_CORE;
      udelay(50);
      __t1_tpi_write(adapter, A_ELMER0_GPO, val);
      udelay(50);

      /* Initialize for memory */
      __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
      val |= NP_LOAD;
      udelay(50);
      __t1_tpi_write(adapter, A_ELMER0_GPO, val);
      udelay(50);
      __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
      val &= ~S_LOAD_MEM;
      val &= ~S_CLOCK;
      udelay(50);
      __t1_tpi_write(adapter, A_ELMER0_GPO, val);
      udelay(50);

      /* Serial program the memory clock synthesizer */
      bit_bang(adapter, T_MEM_VAL, T_MEM_BITS);
      bit_bang(adapter, N_MEM_VAL, N_MEM_BITS);
      bit_bang(adapter, M_MEM_VAL, M_MEM_BITS);
      udelay(50);

      /* Finish memory */
      __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
      val |= S_LOAD_MEM;
      udelay(50);
      __t1_tpi_write(adapter, A_ELMER0_GPO, val);
      udelay(50);
      __t1_tpi_read(adapter, A_ELMER0_GPO, &val);
      val &= ~S_LOAD_MEM;
      udelay(50);
      __t1_tpi_write(adapter, A_ELMER0_GPO, val);

      spin_unlock(&adapter->tpi_lock);

      return 0;
}

static inline void t1_sw_reset(struct pci_dev *pdev)
{
      pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 3);
      pci_write_config_dword(pdev, A_PCICFG_PM_CSR, 0);
}

static void __devexit remove_one(struct pci_dev *pdev)
{
      struct net_device *dev = pci_get_drvdata(pdev);
      struct adapter *adapter = dev->priv;
      int i;

      for_each_port(adapter, i) {
            if (test_bit(i, &adapter->registered_device_map))
                  unregister_netdev(adapter->port[i].dev);
      }

      t1_free_sw_modules(adapter);
      iounmap(adapter->regs);

      while (--i >= 0) {
            if (adapter->port[i].dev)
                  free_netdev(adapter->port[i].dev);
      }

      pci_release_regions(pdev);
      pci_disable_device(pdev);
      pci_set_drvdata(pdev, NULL);
      t1_sw_reset(pdev);
}

static struct pci_driver driver = {
      .name     = DRV_NAME,
      .id_table = t1_pci_tbl,
      .probe    = init_one,
      .remove   = __devexit_p(remove_one),
};

static int __init t1_init_module(void)
{
      return pci_register_driver(&driver);
}

static void __exit t1_cleanup_module(void)
{
      pci_unregister_driver(&driver);
}

module_init(t1_init_module);
module_exit(t1_cleanup_module);

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