slicoss.c

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/**************************************************************************
 *
 * Copyright  2000-2006 Alacritech, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED BY ALACRITECH, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ALACRITECH, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation
 * are those of the authors and should not be interpreted as representing
 * official policies, either expressed or implied, of Alacritech, Inc.
 *
 **************************************************************************/

/*
 * FILENAME: slicoss.c
 *
 * The SLICOSS driver for Alacritech's IS-NIC products.
 *
 * This driver is supposed to support:
 *
 *      Mojave cards (single port PCI Gigabit) both copper and fiber
 *      Oasis cards (single and dual port PCI-x Gigabit) copper and fiber
 *      Kalahari cards (dual and quad port PCI-e Gigabit) copper and fiber
 *
 * The driver was actually tested on Oasis and Kalahari cards.
 *
 *
 * NOTE: This is the standard, non-accelerated version of Alacritech's
 *       IS-NIC driver.
 */


#define KLUDGE_FOR_4GB_BOUNDARY         1
#define DEBUG_MICROCODE                 1
#define DBG                             1
#define SLIC_INTERRUPT_PROCESS_LIMIT    1
#define SLIC_OFFLOAD_IP_CHECKSUM        1
#define STATS_TIMER_INTERVAL            2
#define PING_TIMER_INTERVAL             1

#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/io.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/kthread.h>
#include <linux/module.h>
#include <linux/moduleparam.h>

#include <linux/firmware.h>
#include <linux/types.h>
#include <linux/dma-mapping.h>
#include <linux/mii.h>
#include <linux/if_vlan.h>
#include <asm/unaligned.h>

#include <linux/ethtool.h>
#include <linux/uaccess.h>
#include "slichw.h"
#include "slic.h"

static uint slic_first_init = 1;
static char *slic_banner = "Alacritech SLIC Technology(tm) Server "\
        "and Storage Accelerator (Non-Accelerated)";

static char *slic_proc_version = "2.0.351  2006/07/14 12:26:00";
static char *slic_product_name = "SLIC Technology(tm) Server "\
        "and Storage Accelerator (Non-Accelerated)";
static char *slic_vendor = "Alacritech, Inc.";

static int slic_debug = 1;
static int debug = -1;
static struct net_device *head_netdevice;

static struct base_driver slic_global = { {}, 0, 0, 0, 1, NULL, NULL };
static int intagg_delay = 100;
static u32 dynamic_intagg;
static unsigned int rcv_count;
static struct dentry *slic_debugfs;

#define DRV_NAME          "slicoss"
#define DRV_VERSION       "2.0.1"
#define DRV_AUTHOR        "Alacritech, Inc. Engineering"
#define DRV_DESCRIPTION   "Alacritech SLIC Techonology(tm) "\
        "Non-Accelerated Driver"
#define DRV_COPYRIGHT     "Copyright  2000-2006 Alacritech, Inc. "\
        "All rights reserved."
#define PFX        DRV_NAME " "

MODULE_AUTHOR(DRV_AUTHOR);
MODULE_DESCRIPTION(DRV_DESCRIPTION);
MODULE_LICENSE("Dual BSD/GPL");

module_param(dynamic_intagg, int, 0);
MODULE_PARM_DESC(dynamic_intagg, "Dynamic Interrupt Aggregation Setting");
module_param(intagg_delay, int, 0);
MODULE_PARM_DESC(intagg_delay, "uSec Interrupt Aggregation Delay");

static DEFINE_PCI_DEVICE_TABLE(slic_pci_tbl) = {
    { PCI_DEVICE(PCI_VENDOR_ID_ALACRITECH, SLIC_1GB_DEVICE_ID) },
    { PCI_DEVICE(PCI_VENDOR_ID_ALACRITECH, SLIC_2GB_DEVICE_ID) },
    { 0 }
};

MODULE_DEVICE_TABLE(pci, slic_pci_tbl);

#ifdef ASSERT
#undef ASSERT
#endif

static void slic_assert_fail(void)
{
    u32 cpuid;
    u32 curr_pid;
    cpuid = smp_processor_id();
    curr_pid = current->pid;

    printk(KERN_ERR "%s CPU # %d ---- PID # %d\n",
           __func__, cpuid, curr_pid);
}

#ifndef ASSERT
#define ASSERT(a) do {                          \
    if (!(a)) {                         \
        printk(KERN_ERR "slicoss ASSERT() Failure: function %s" \
            "line %d\n", __func__, __LINE__);       \
        slic_assert_fail();                 \
    }                               \
} while (0)
#endif


#define SLIC_GET_SLIC_HANDLE(_adapter, _pslic_handle)                   \
{                                                                       \
    spin_lock_irqsave(&_adapter->handle_lock.lock,                      \
            _adapter->handle_lock.flags);                   \
    _pslic_handle  =  _adapter->pfree_slic_handles;                     \
    if (_pslic_handle) {                                                \
    ASSERT(_pslic_handle->type == SLIC_HANDLE_FREE);                \
    _adapter->pfree_slic_handles = _pslic_handle->next;             \
    }                                                                   \
    spin_unlock_irqrestore(&_adapter->handle_lock.lock,                 \
            _adapter->handle_lock.flags);                   \
}

#define SLIC_FREE_SLIC_HANDLE(_adapter, _pslic_handle)                  \
{                                                                       \
    _pslic_handle->type = SLIC_HANDLE_FREE;                             \
    spin_lock_irqsave(&_adapter->handle_lock.lock,                      \
            _adapter->handle_lock.flags);                   \
    _pslic_handle->next = _adapter->pfree_slic_handles;                 \
    _adapter->pfree_slic_handles = _pslic_handle;                       \
    spin_unlock_irqrestore(&_adapter->handle_lock.lock,                 \
            _adapter->handle_lock.flags);                   \
}

static inline void slic_reg32_write(void __iomem *reg, u32 value, bool flush)
{
    writel(value, reg);
    if (flush)
        mb();
}

static inline void slic_reg64_write(struct adapter *adapter, void __iomem *reg,
                    u32 value, void __iomem *regh, u32 paddrh,
                    bool flush)
{
    spin_lock_irqsave(&adapter->bit64reglock.lock,
                adapter->bit64reglock.flags);
    if (paddrh != adapter->curaddrupper) {
        adapter->curaddrupper = paddrh;
        writel(paddrh, regh);
    }
    writel(value, reg);
    if (flush)
        mb();
    spin_unlock_irqrestore(&adapter->bit64reglock.lock,
                adapter->bit64reglock.flags);
}

/*
 * Functions to obtain the CRC corresponding to the destination mac address.
 * This is a standard ethernet CRC in that it is a 32-bit, reflected CRC using
 * the polynomial:
 *   x^32 + x^26 + x^23 + x^22 + x^16 + x^12 + x^11 + x^10 + x^8 + x^7 + x^5 +
 *   x^4 + x^2 + x^1.
 *
 * After the CRC for the 6 bytes is generated (but before the value is
 * complemented),
 * we must then transpose the value and return bits 30-23.
 *
 */
static u32 slic_crc_table[256]; /* Table of CRCs for all possible byte values */
static u32 slic_crc_init;   /* Is table initialized */

/*
 *  Contruct the CRC32 table
 */
static void slic_mcast_init_crc32(void)
{
    u32 c;      /*  CRC shit reg                 */
    u32 e = 0;      /*  Poly X-or pattern            */
    int i;          /*  counter                      */
    int k;          /*  byte being shifted into crc  */

    static int p[] = { 0, 1, 2, 4, 5, 7, 8, 10, 11, 12, 16, 22, 23, 26 };

    for (i = 0; i < ARRAY_SIZE(p); i++)
        e |= 1L << (31 - p[i]);

    for (i = 1; i < 256; i++) {
        c = i;
        for (k = 8; k; k--)
            c = c & 1 ? (c >> 1) ^ e : c >> 1;
        slic_crc_table[i] = c;
    }
}

/*
 *  Return the MAC hast as described above.
 */
static unsigned char slic_mcast_get_mac_hash(char *macaddr)
{
    u32 crc;
    char *p;
    int i;
    unsigned char machash = 0;

    if (!slic_crc_init) {
        slic_mcast_init_crc32();
        slic_crc_init = 1;
    }

    crc = 0xFFFFFFFF;   /* Preload shift register, per crc-32 spec */
    for (i = 0, p = macaddr; i < 6; ++p, ++i)
        crc = (crc >> 8) ^ slic_crc_table[(crc ^ *p) & 0xFF];

    /* Return bits 1-8, transposed */
    for (i = 1; i < 9; i++)
        machash |= (((crc >> i) & 1) << (8 - i));

    return machash;
}

static void slic_mcast_set_bit(struct adapter *adapter, char *address)
{
    unsigned char crcpoly;

    /* Get the CRC polynomial for the mac address */
    crcpoly = slic_mcast_get_mac_hash(address);

    /* We only have space on the SLIC for 64 entries.  Lop
     * off the top two bits. (2^6 = 64)
     */
    crcpoly &= 0x3F;

    /* OR in the new bit into our 64 bit mask. */
    adapter->mcastmask |= (u64) 1 << crcpoly;
}

static void slic_mcast_set_mask(struct adapter *adapter)
{
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;

    if (adapter->macopts & (MAC_ALLMCAST | MAC_PROMISC)) {
        /* Turn on all multicast addresses. We have to do this for
         * promiscuous mode as well as ALLMCAST mode.  It saves the
         * Microcode from having to keep state about the MAC
         * configuration.
         */
        slic_reg32_write(&slic_regs->slic_mcastlow, 0xFFFFFFFF, FLUSH);
        slic_reg32_write(&slic_regs->slic_mcasthigh, 0xFFFFFFFF,
                 FLUSH);
    } else {
        /* Commit our multicast mast to the SLIC by writing to the
         * multicast address mask registers
         */
        slic_reg32_write(&slic_regs->slic_mcastlow,
            (u32)(adapter->mcastmask & 0xFFFFFFFF), FLUSH);
        slic_reg32_write(&slic_regs->slic_mcasthigh,
            (u32)((adapter->mcastmask >> 32) & 0xFFFFFFFF), FLUSH);
    }
}

static void slic_timer_ping(ulong dev)
{
    struct adapter *adapter;
    struct sliccard *card;

    ASSERT(dev);
    adapter = netdev_priv((struct net_device *)dev);
    ASSERT(adapter);
    card = adapter->card;
    ASSERT(card);

    adapter->pingtimer.expires = jiffies + (PING_TIMER_INTERVAL * HZ);
    add_timer(&adapter->pingtimer);
}

static void slic_unmap_mmio_space(struct adapter *adapter)
{
    if (adapter->slic_regs)
        iounmap(adapter->slic_regs);
    adapter->slic_regs = NULL;
}

/*
 *  slic_link_config
 *
 *  Write phy control to configure link duplex/speed
 *
 */
static void slic_link_config(struct adapter *adapter,
              u32 linkspeed, u32 linkduplex)
{
    u32 __iomem *wphy;
    u32 speed;
    u32 duplex;
    u32 phy_config;
    u32 phy_advreg;
    u32 phy_gctlreg;

    if (adapter->state != ADAPT_UP)
        return;

    ASSERT((adapter->devid == SLIC_1GB_DEVICE_ID)
           || (adapter->devid == SLIC_2GB_DEVICE_ID));

    if (linkspeed > LINK_1000MB)
        linkspeed = LINK_AUTOSPEED;
    if (linkduplex > LINK_AUTOD)
        linkduplex = LINK_AUTOD;

    wphy = &adapter->slic_regs->slic_wphy;

    if ((linkspeed == LINK_AUTOSPEED) || (linkspeed == LINK_1000MB)) {
        if (adapter->flags & ADAPT_FLAGS_FIBERMEDIA) {
            /*  We've got a fiber gigabit interface, and register
             *  4 is different in fiber mode than in copper mode
             */

            /* advertise FD only @1000 Mb */
            phy_advreg = (MIICR_REG_4 | (PAR_ADV1000XFD));
            /* enable PAUSE frames        */
            phy_advreg |= PAR_ASYMPAUSE_FIBER;
            slic_reg32_write(wphy, phy_advreg, FLUSH);

            if (linkspeed == LINK_AUTOSPEED) {
                /* reset phy, enable auto-neg  */
                phy_config =
                    (MIICR_REG_PCR |
                     (PCR_RESET | PCR_AUTONEG |
                      PCR_AUTONEG_RST));
                slic_reg32_write(wphy, phy_config, FLUSH);
            } else {    /* forced 1000 Mb FD*/
                /* power down phy to break link
                   this may not work) */
                phy_config = (MIICR_REG_PCR | PCR_POWERDOWN);
                slic_reg32_write(wphy, phy_config, FLUSH);
                /* wait, Marvell says 1 sec,
                   try to get away with 10 ms  */
                mdelay(10);

                /* disable auto-neg, set speed/duplex,
                   soft reset phy, powerup */
                phy_config =
                    (MIICR_REG_PCR |
                     (PCR_RESET | PCR_SPEED_1000 |
                      PCR_DUPLEX_FULL));
                slic_reg32_write(wphy, phy_config, FLUSH);
            }
        } else {    /* copper gigabit */

            /* Auto-Negotiate or 1000 Mb must be auto negotiated
             * We've got a copper gigabit interface, and
             * register 4 is different in copper mode than
             * in fiber mode
             */
            if (linkspeed == LINK_AUTOSPEED) {
                /* advertise 10/100 Mb modes   */
                phy_advreg =
                    (MIICR_REG_4 |
                     (PAR_ADV100FD | PAR_ADV100HD | PAR_ADV10FD
                      | PAR_ADV10HD));
            } else {
            /* linkspeed == LINK_1000MB -
               don't advertise 10/100 Mb modes  */
                phy_advreg = MIICR_REG_4;
            }
            /* enable PAUSE frames  */
            phy_advreg |= PAR_ASYMPAUSE;
            /* required by the Cicada PHY  */
            phy_advreg |= PAR_802_3;
            slic_reg32_write(wphy, phy_advreg, FLUSH);
            /* advertise FD only @1000 Mb  */
            phy_gctlreg = (MIICR_REG_9 | (PGC_ADV1000FD));
            slic_reg32_write(wphy, phy_gctlreg, FLUSH);

            if (adapter->subsysid != SLIC_1GB_CICADA_SUBSYS_ID) {
                /* if a Marvell PHY
                   enable auto crossover */
                phy_config =
                    (MIICR_REG_16 | (MRV_REG16_XOVERON));
                slic_reg32_write(wphy, phy_config, FLUSH);

                /* reset phy, enable auto-neg  */
                phy_config =
                    (MIICR_REG_PCR |
                     (PCR_RESET | PCR_AUTONEG |
                      PCR_AUTONEG_RST));
                slic_reg32_write(wphy, phy_config, FLUSH);
            } else {    /* it's a Cicada PHY  */
                /* enable and restart auto-neg (don't reset)  */
                phy_config =
                    (MIICR_REG_PCR |
                     (PCR_AUTONEG | PCR_AUTONEG_RST));
                slic_reg32_write(wphy, phy_config, FLUSH);
            }
        }
    } else {
        /* Forced 10/100  */
        if (linkspeed == LINK_10MB)
            speed = 0;
        else
            speed = PCR_SPEED_100;
        if (linkduplex == LINK_HALFD)
            duplex = 0;
        else
            duplex = PCR_DUPLEX_FULL;

        if (adapter->subsysid != SLIC_1GB_CICADA_SUBSYS_ID) {
            /* if a Marvell PHY
               disable auto crossover  */
            phy_config = (MIICR_REG_16 | (MRV_REG16_XOVEROFF));
            slic_reg32_write(wphy, phy_config, FLUSH);
        }

        /* power down phy to break link (this may not work)  */
        phy_config = (MIICR_REG_PCR | (PCR_POWERDOWN | speed | duplex));
        slic_reg32_write(wphy, phy_config, FLUSH);

        /* wait, Marvell says 1 sec, try to get away with 10 ms */
        mdelay(10);

        if (adapter->subsysid != SLIC_1GB_CICADA_SUBSYS_ID) {
            /* if a Marvell PHY
               disable auto-neg, set speed,
               soft reset phy, powerup */
            phy_config =
                (MIICR_REG_PCR | (PCR_RESET | speed | duplex));
            slic_reg32_write(wphy, phy_config, FLUSH);
        } else {    /* it's a Cicada PHY  */
            /* disable auto-neg, set speed, powerup  */
            phy_config = (MIICR_REG_PCR | (speed | duplex));
            slic_reg32_write(wphy, phy_config, FLUSH);
        }
    }
}

static int slic_card_download_gbrcv(struct adapter *adapter)
{
    const struct firmware *fw;
    const char *file = "";
    int ret;
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;
    u32 codeaddr;
    u32 instruction;
    int index = 0;
    u32 rcvucodelen = 0;

    switch (adapter->devid) {
    case SLIC_2GB_DEVICE_ID:
        file = "slicoss/oasisrcvucode.sys";
        break;
    case SLIC_1GB_DEVICE_ID:
        file = "slicoss/gbrcvucode.sys";
        break;
    default:
        return -ENOENT;
    }

    ret = request_firmware(&fw, file, &adapter->pcidev->dev);
    if (ret) {
        dev_err(&adapter->pcidev->dev,
            "SLICOSS: Failed to load firmware %s\n", file);
        return ret;
    }

    rcvucodelen = *(u32 *)(fw->data + index);
    index += 4;
    switch (adapter->devid) {
    case SLIC_2GB_DEVICE_ID:
        if (rcvucodelen != OasisRcvUCodeLen) {
            release_firmware(fw);
            return -EINVAL;
        }
        break;
    case SLIC_1GB_DEVICE_ID:
        if (rcvucodelen != GBRcvUCodeLen) {
            release_firmware(fw);
            return -EINVAL;
        }
        break;
    }
    /* start download */
    slic_reg32_write(&slic_regs->slic_rcv_wcs, SLIC_RCVWCS_BEGIN, FLUSH);
    /* download the rcv sequencer ucode */
    for (codeaddr = 0; codeaddr < rcvucodelen; codeaddr++) {
        /* write out instruction address */
        slic_reg32_write(&slic_regs->slic_rcv_wcs, codeaddr, FLUSH);

        instruction = *(u32 *)(fw->data + index);
        index += 4;
        /* write out the instruction data low addr */
        slic_reg32_write(&slic_regs->slic_rcv_wcs, instruction, FLUSH);

        instruction = *(u8 *)(fw->data + index);
        index++;
        /* write out the instruction data high addr */
        slic_reg32_write(&slic_regs->slic_rcv_wcs, (u8)instruction,
                 FLUSH);
    }

    /* download finished */
    release_firmware(fw);
    slic_reg32_write(&slic_regs->slic_rcv_wcs, SLIC_RCVWCS_FINISH, FLUSH);
    return 0;
}

MODULE_FIRMWARE("slicoss/oasisrcvucode.sys");
MODULE_FIRMWARE("slicoss/gbrcvucode.sys");

static int slic_card_download(struct adapter *adapter)
{
    const struct firmware *fw;
    const char *file = "";
    int ret;
    u32 section;
    int thissectionsize;
    int codeaddr;
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;
    u32 instruction;
    u32 baseaddress;
    u32 i;
    u32 numsects = 0;
    u32 sectsize[3];
    u32 sectstart[3];
    int ucode_start, index = 0;

    switch (adapter->devid) {
    case SLIC_2GB_DEVICE_ID:
        file = "slicoss/oasisdownload.sys";
        break;
    case SLIC_1GB_DEVICE_ID:
        file = "slicoss/gbdownload.sys";
        break;
    default:
        ASSERT(0);
        break;
    }
    ret = request_firmware(&fw, file, &adapter->pcidev->dev);
    if (ret) {
        dev_err(&adapter->pcidev->dev,
            "SLICOSS: Failed to load firmware %s\n", file);
        return ret;
    }
    numsects = *(u32 *)(fw->data + index);
    index += 4;
    ASSERT(numsects <= 3);
    for (i = 0; i < numsects; i++) {
        sectsize[i] = *(u32 *)(fw->data + index);
        index += 4;
    }
    for (i = 0; i < numsects; i++) {
        sectstart[i] = *(u32 *)(fw->data + index);
        index += 4;
    }
    ucode_start = index;
    instruction = *(u32 *)(fw->data + index);
    index += 4;
    for (section = 0; section < numsects; section++) {
        baseaddress = sectstart[section];
        thissectionsize = sectsize[section] >> 3;

        for (codeaddr = 0; codeaddr < thissectionsize; codeaddr++) {
            /* Write out instruction address */
            slic_reg32_write(&slic_regs->slic_wcs,
                     baseaddress + codeaddr, FLUSH);
            /* Write out instruction to low addr */
            slic_reg32_write(&slic_regs->slic_wcs, instruction, FLUSH);
            instruction = *(u32 *)(fw->data + index);
            index += 4;

            /* Write out instruction to high addr */
            slic_reg32_write(&slic_regs->slic_wcs, instruction, FLUSH);
            instruction = *(u32 *)(fw->data + index);
            index += 4;
        }
    }
    index = ucode_start;
    for (section = 0; section < numsects; section++) {
        instruction = *(u32 *)(fw->data + index);
        baseaddress = sectstart[section];
        if (baseaddress < 0x8000)
            continue;
        thissectionsize = sectsize[section] >> 3;

        for (codeaddr = 0; codeaddr < thissectionsize; codeaddr++) {
            /* Write out instruction address */
            slic_reg32_write(&slic_regs->slic_wcs,
                SLIC_WCS_COMPARE | (baseaddress + codeaddr),
                FLUSH);
            /* Write out instruction to low addr */
            slic_reg32_write(&slic_regs->slic_wcs, instruction,
                     FLUSH);
            instruction = *(u32 *)(fw->data + index);
            index += 4;
            /* Write out instruction to high addr */
            slic_reg32_write(&slic_regs->slic_wcs, instruction,
                     FLUSH);
            instruction = *(u32 *)(fw->data + index);
            index += 4;

            /* Check SRAM location zero. If it is non-zero. Abort.*/
/*          failure = readl((u32 __iomem *)&slic_regs->slic_reset);
            if (failure) {
                release_firmware(fw);
                return -EIO;
            }*/
        }
    }
    release_firmware(fw);
    /* Everything OK, kick off the card */
    mdelay(10);
    slic_reg32_write(&slic_regs->slic_wcs, SLIC_WCS_START, FLUSH);

    /* stall for 20 ms, long enough for ucode to init card
       and reach mainloop */
    mdelay(20);

    return 0;
}

MODULE_FIRMWARE("slicoss/oasisdownload.sys");
MODULE_FIRMWARE("slicoss/gbdownload.sys");

static void slic_adapter_set_hwaddr(struct adapter *adapter)
{
    struct sliccard *card = adapter->card;

    if ((adapter->card) && (card->config_set)) {
        memcpy(adapter->macaddr,
               card->config.MacInfo[adapter->functionnumber].macaddrA,
               sizeof(struct slic_config_mac));
        if (!(adapter->currmacaddr[0] || adapter->currmacaddr[1] ||
              adapter->currmacaddr[2] || adapter->currmacaddr[3] ||
              adapter->currmacaddr[4] || adapter->currmacaddr[5])) {
            memcpy(adapter->currmacaddr, adapter->macaddr, 6);
        }
        if (adapter->netdev) {
            memcpy(adapter->netdev->dev_addr, adapter->currmacaddr,
                   6);
        }
    }
}

static void slic_intagg_set(struct adapter *adapter, u32 value)
{
    slic_reg32_write(&adapter->slic_regs->slic_intagg, value, FLUSH);
    adapter->card->loadlevel_current = value;
}

static void slic_soft_reset(struct adapter *adapter)
{
    if (adapter->card->state == CARD_UP) {
        slic_reg32_write(&adapter->slic_regs->slic_quiesce, 0, FLUSH);
        mdelay(1);
    }

    slic_reg32_write(&adapter->slic_regs->slic_reset, SLIC_RESET_MAGIC,
             FLUSH);
    mdelay(1);
}

static void slic_mac_address_config(struct adapter *adapter)
{
    u32 value;
    u32 value2;
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;

    value = *(u32 *) &adapter->currmacaddr[2];
    value = ntohl(value);
    slic_reg32_write(&slic_regs->slic_wraddral, value, FLUSH);
    slic_reg32_write(&slic_regs->slic_wraddrbl, value, FLUSH);

    value2 = (u32) ((adapter->currmacaddr[0] << 8 |
                 adapter->currmacaddr[1]) & 0xFFFF);

    slic_reg32_write(&slic_regs->slic_wraddrah, value2, FLUSH);
    slic_reg32_write(&slic_regs->slic_wraddrbh, value2, FLUSH);

    /* Write our multicast mask out to the card.  This is done */
    /* here in addition to the slic_mcast_addr_set routine     */
    /* because ALL_MCAST may have been enabled or disabled     */
    slic_mcast_set_mask(adapter);
}

static void slic_mac_config(struct adapter *adapter)
{
    u32 value;
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;

    /* Setup GMAC gaps */
    if (adapter->linkspeed == LINK_1000MB) {
        value = ((GMCR_GAPBB_1000 << GMCR_GAPBB_SHIFT) |
             (GMCR_GAPR1_1000 << GMCR_GAPR1_SHIFT) |
             (GMCR_GAPR2_1000 << GMCR_GAPR2_SHIFT));
    } else {
        value = ((GMCR_GAPBB_100 << GMCR_GAPBB_SHIFT) |
             (GMCR_GAPR1_100 << GMCR_GAPR1_SHIFT) |
             (GMCR_GAPR2_100 << GMCR_GAPR2_SHIFT));
    }

    /* enable GMII */
    if (adapter->linkspeed == LINK_1000MB)
        value |= GMCR_GBIT;

    /* enable fullduplex */
    if ((adapter->linkduplex == LINK_FULLD)
        || (adapter->macopts & MAC_LOOPBACK)) {
        value |= GMCR_FULLD;
    }

    /* write mac config */
    slic_reg32_write(&slic_regs->slic_wmcfg, value, FLUSH);

    /* setup mac addresses */
    slic_mac_address_config(adapter);
}

static void slic_config_set(struct adapter *adapter, bool linkchange)
{
    u32 value;
    u32 RcrReset;
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;

    if (linkchange) {
        /* Setup MAC */
        slic_mac_config(adapter);
        RcrReset = GRCR_RESET;
    } else {
        slic_mac_address_config(adapter);
        RcrReset = 0;
    }

    if (adapter->linkduplex == LINK_FULLD) {
        /* setup xmtcfg */
        value = (GXCR_RESET |   /* Always reset     */
             GXCR_XMTEN |   /* Enable transmit  */
             GXCR_PAUSEEN); /* Enable pause     */

        slic_reg32_write(&slic_regs->slic_wxcfg, value, FLUSH);

        /* Setup rcvcfg last */
        value = (RcrReset | /* Reset, if linkchange */
             GRCR_CTLEN |   /* Enable CTL frames    */
             GRCR_ADDRAEN | /* Address A enable     */
             GRCR_RCVBAD |  /* Rcv bad frames       */
             (GRCR_HASHSIZE << GRCR_HASHSIZE_SHIFT));
    } else {
        /* setup xmtcfg */
        value = (GXCR_RESET |   /* Always reset     */
             GXCR_XMTEN);   /* Enable transmit  */

        slic_reg32_write(&slic_regs->slic_wxcfg, value, FLUSH);

        /* Setup rcvcfg last */
        value = (RcrReset | /* Reset, if linkchange */
             GRCR_ADDRAEN | /* Address A enable     */
             GRCR_RCVBAD |  /* Rcv bad frames       */
             (GRCR_HASHSIZE << GRCR_HASHSIZE_SHIFT));
    }

    if (adapter->state != ADAPT_DOWN) {
        /* Only enable receive if we are restarting or running */
        value |= GRCR_RCVEN;
    }

    if (adapter->macopts & MAC_PROMISC)
        value |= GRCR_RCVALL;

    slic_reg32_write(&slic_regs->slic_wrcfg, value, FLUSH);
}

/*
 *  Turn off RCV and XMT, power down PHY
 */
static void slic_config_clear(struct adapter *adapter)
{
    u32 value;
    u32 phy_config;
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;

    /* Setup xmtcfg */
    value = (GXCR_RESET |   /* Always reset */
         GXCR_PAUSEEN); /* Enable pause */

    slic_reg32_write(&slic_regs->slic_wxcfg, value, FLUSH);

    value = (GRCR_RESET |   /* Always reset      */
         GRCR_CTLEN |   /* Enable CTL frames */
         GRCR_ADDRAEN | /* Address A enable  */
         (GRCR_HASHSIZE << GRCR_HASHSIZE_SHIFT));

    slic_reg32_write(&slic_regs->slic_wrcfg, value, FLUSH);

    /* power down phy */
    phy_config = (MIICR_REG_PCR | (PCR_POWERDOWN));
    slic_reg32_write(&slic_regs->slic_wphy, phy_config, FLUSH);
}

static bool slic_mac_filter(struct adapter *adapter,
            struct ether_header *ether_frame)
{
    struct net_device *netdev = adapter->netdev;
    u32 opts = adapter->macopts;
    u32 *dhost4 = (u32 *)&ether_frame->ether_dhost[0];
    u16 *dhost2 = (u16 *)&ether_frame->ether_dhost[4];

    if (opts & MAC_PROMISC)
        return true;

    if ((*dhost4 == 0xFFFFFFFF) && (*dhost2 == 0xFFFF)) {
        if (opts & MAC_BCAST) {
            adapter->rcv_broadcasts++;
            return true;
        } else {
            return false;
        }
    }

    if (ether_frame->ether_dhost[0] & 0x01) {
        if (opts & MAC_ALLMCAST) {
            adapter->rcv_multicasts++;
            netdev->stats.multicast++;
            return true;
        }
        if (opts & MAC_MCAST) {
            struct mcast_address *mcaddr = adapter->mcastaddrs;

            while (mcaddr) {
                if (!compare_ether_addr(mcaddr->address,
                            ether_frame->ether_dhost)) {
                    adapter->rcv_multicasts++;
                    netdev->stats.multicast++;
                    return true;
                }
                mcaddr = mcaddr->next;
            }
            return false;
        } else {
            return false;
        }
    }
    if (opts & MAC_DIRECTED) {
        adapter->rcv_unicasts++;
        return true;
    }
    return false;

}

static int slic_mac_set_address(struct net_device *dev, void *ptr)
{
    struct adapter *adapter = netdev_priv(dev);
    struct sockaddr *addr = ptr;

    if (netif_running(dev))
        return -EBUSY;
    if (!adapter)
        return -EBUSY;

    if (!is_valid_ether_addr(addr->sa_data))
        return -EINVAL;

    memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
    memcpy(adapter->currmacaddr, addr->sa_data, dev->addr_len);

    slic_config_set(adapter, true);
    return 0;
}

static void slic_timer_load_check(ulong cardaddr)
{
    struct sliccard *card = (struct sliccard *)cardaddr;
    struct adapter *adapter = card->master;
    u32 __iomem *intagg;
    u32 load = card->events;
    u32 level = 0;

    intagg = &adapter->slic_regs->slic_intagg;

    if ((adapter) && (adapter->state == ADAPT_UP) &&
        (card->state == CARD_UP) && (slic_global.dynamic_intagg)) {
        if (adapter->devid == SLIC_1GB_DEVICE_ID) {
            if (adapter->linkspeed == LINK_1000MB)
                level = 100;
            else {
                if (load > SLIC_LOAD_5)
                    level = SLIC_INTAGG_5;
                else if (load > SLIC_LOAD_4)
                    level = SLIC_INTAGG_4;
                else if (load > SLIC_LOAD_3)
                    level = SLIC_INTAGG_3;
                else if (load > SLIC_LOAD_2)
                    level = SLIC_INTAGG_2;
                else if (load > SLIC_LOAD_1)
                    level = SLIC_INTAGG_1;
                else
                    level = SLIC_INTAGG_0;
            }
            if (card->loadlevel_current != level) {
                card->loadlevel_current = level;
                slic_reg32_write(intagg, level, FLUSH);
            }
        } else {
            if (load > SLIC_LOAD_5)
                level = SLIC_INTAGG_5;
            else if (load > SLIC_LOAD_4)
                level = SLIC_INTAGG_4;
            else if (load > SLIC_LOAD_3)
                level = SLIC_INTAGG_3;
            else if (load > SLIC_LOAD_2)
                level = SLIC_INTAGG_2;
            else if (load > SLIC_LOAD_1)
                level = SLIC_INTAGG_1;
            else
                level = SLIC_INTAGG_0;
            if (card->loadlevel_current != level) {
                card->loadlevel_current = level;
                slic_reg32_write(intagg, level, FLUSH);
            }
        }
    }
    card->events = 0;
    card->loadtimer.expires = jiffies + (SLIC_LOADTIMER_PERIOD * HZ);
    add_timer(&card->loadtimer);
}

static int slic_upr_queue_request(struct adapter *adapter,
               u32 upr_request,
               u32 upr_data,
               u32 upr_data_h,
               u32 upr_buffer, u32 upr_buffer_h)
{
    struct slic_upr *upr;
    struct slic_upr *uprqueue;

    upr = kmalloc(sizeof(struct slic_upr), GFP_ATOMIC);
    if (!upr)
        return -ENOMEM;

    upr->adapter = adapter->port;
    upr->upr_request = upr_request;
    upr->upr_data = upr_data;
    upr->upr_buffer = upr_buffer;
    upr->upr_data_h = upr_data_h;
    upr->upr_buffer_h = upr_buffer_h;
    upr->next = NULL;
    if (adapter->upr_list) {
        uprqueue = adapter->upr_list;

        while (uprqueue->next)
            uprqueue = uprqueue->next;
        uprqueue->next = upr;
    } else {
        adapter->upr_list = upr;
    }
    return 0;
}

static void slic_upr_start(struct adapter *adapter)
{
    struct slic_upr *upr;
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;
/*
    char * ptr1;
    char * ptr2;
    uint cmdoffset;
*/
    upr = adapter->upr_list;
    if (!upr)
        return;
    if (adapter->upr_busy)
        return;
    adapter->upr_busy = 1;

    switch (upr->upr_request) {
    case SLIC_UPR_STATS:
        if (upr->upr_data_h == 0) {
            slic_reg32_write(&slic_regs->slic_stats, upr->upr_data,
                     FLUSH);
        } else {
            slic_reg64_write(adapter, &slic_regs->slic_stats64,
                     upr->upr_data,
                     &slic_regs->slic_addr_upper,
                     upr->upr_data_h, FLUSH);
        }
        break;

    case SLIC_UPR_RLSR:
        slic_reg64_write(adapter, &slic_regs->slic_rlsr, upr->upr_data,
                 &slic_regs->slic_addr_upper, upr->upr_data_h,
                 FLUSH);
        break;

    case SLIC_UPR_RCONFIG:
        slic_reg64_write(adapter, &slic_regs->slic_rconfig,
                 upr->upr_data, &slic_regs->slic_addr_upper,
                 upr->upr_data_h, FLUSH);
        break;
    case SLIC_UPR_PING:
        slic_reg32_write(&slic_regs->slic_ping, 1, FLUSH);
        break;
    default:
        ASSERT(0);
    }
}

static int slic_upr_request(struct adapter *adapter,
             u32 upr_request,
             u32 upr_data,
             u32 upr_data_h,
             u32 upr_buffer, u32 upr_buffer_h)
{
    int rc;

    spin_lock_irqsave(&adapter->upr_lock.lock, adapter->upr_lock.flags);
    rc = slic_upr_queue_request(adapter,
                    upr_request,
                    upr_data,
                    upr_data_h, upr_buffer, upr_buffer_h);
    if (rc)
        goto err_unlock_irq;

    slic_upr_start(adapter);
err_unlock_irq:
    spin_unlock_irqrestore(&adapter->upr_lock.lock,
                adapter->upr_lock.flags);
    return rc;
}

static void slic_link_upr_complete(struct adapter *adapter, u32 isr)
{
    u32 linkstatus = adapter->pshmem->linkstatus;
    uint linkup;
    unsigned char linkspeed;
    unsigned char linkduplex;

    if ((isr & ISR_UPCERR) || (isr & ISR_UPCBSY)) {
        struct slic_shmem *pshmem;

        pshmem = (struct slic_shmem *)adapter->phys_shmem;
#if BITS_PER_LONG == 64
        slic_upr_queue_request(adapter,
                       SLIC_UPR_RLSR,
                       SLIC_GET_ADDR_LOW(&pshmem->linkstatus),
                       SLIC_GET_ADDR_HIGH(&pshmem->linkstatus),
                       0, 0);
#else
        slic_upr_queue_request(adapter,
                       SLIC_UPR_RLSR,
                       (u32) &pshmem->linkstatus,
                       SLIC_GET_ADDR_HIGH(pshmem), 0, 0);
#endif
        return;
    }
    if (adapter->state != ADAPT_UP)
        return;

    ASSERT((adapter->devid == SLIC_1GB_DEVICE_ID)
           || (adapter->devid == SLIC_2GB_DEVICE_ID));

    linkup = linkstatus & GIG_LINKUP ? LINK_UP : LINK_DOWN;
    if (linkstatus & GIG_SPEED_1000)
        linkspeed = LINK_1000MB;
    else if (linkstatus & GIG_SPEED_100)
        linkspeed = LINK_100MB;
    else
        linkspeed = LINK_10MB;

    if (linkstatus & GIG_FULLDUPLEX)
        linkduplex = LINK_FULLD;
    else
        linkduplex = LINK_HALFD;

    if ((adapter->linkstate == LINK_DOWN) && (linkup == LINK_DOWN))
        return;

    /* link up event, but nothing has changed */
    if ((adapter->linkstate == LINK_UP) &&
        (linkup == LINK_UP) &&
        (adapter->linkspeed == linkspeed) &&
        (adapter->linkduplex == linkduplex))
        return;

    /* link has changed at this point */

    /* link has gone from up to down */
    if (linkup == LINK_DOWN) {
        adapter->linkstate = LINK_DOWN;
        return;
    }

    /* link has gone from down to up */
    adapter->linkspeed = linkspeed;
    adapter->linkduplex = linkduplex;

    if (adapter->linkstate != LINK_UP) {
        /* setup the mac */
        slic_config_set(adapter, true);
        adapter->linkstate = LINK_UP;
        netif_start_queue(adapter->netdev);
    }
}

static void slic_upr_request_complete(struct adapter *adapter, u32 isr)
{
    struct sliccard *card = adapter->card;
    struct slic_upr *upr;

    spin_lock_irqsave(&adapter->upr_lock.lock, adapter->upr_lock.flags);
    upr = adapter->upr_list;
    if (!upr) {
        ASSERT(0);
        spin_unlock_irqrestore(&adapter->upr_lock.lock,
                    adapter->upr_lock.flags);
        return;
    }
    adapter->upr_list = upr->next;
    upr->next = NULL;
    adapter->upr_busy = 0;
    ASSERT(adapter->port == upr->adapter);
    switch (upr->upr_request) {
    case SLIC_UPR_STATS:
        {
            struct slic_stats *slicstats =
                (struct slic_stats *) &adapter->pshmem->inicstats;
            struct slic_stats *newstats = slicstats;
            struct slic_stats  *old = &adapter->inicstats_prev;
            struct slicnet_stats *stst = &adapter->slic_stats;

            if (isr & ISR_UPCERR) {
                dev_err(&adapter->netdev->dev,
                    "SLIC_UPR_STATS command failed isr[%x]\n",
                    isr);

                break;
            }
            UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs,
                    newstats->xmit_tcp_segs_gb,
                    old->xmit_tcp_segs_gb);

            UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes,
                    newstats->xmit_tcp_bytes_gb,
                    old->xmit_tcp_bytes_gb);

            UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs,
                    newstats->rcv_tcp_segs_gb,
                    old->rcv_tcp_segs_gb);

            UPDATE_STATS_GB(stst->tcp.rcv_tcp_bytes,
                    newstats->rcv_tcp_bytes_gb,
                    old->rcv_tcp_bytes_gb);

            UPDATE_STATS_GB(stst->iface.xmt_bytes,
                    newstats->xmit_bytes_gb,
                    old->xmit_bytes_gb);

            UPDATE_STATS_GB(stst->iface.xmt_ucast,
                    newstats->xmit_unicasts_gb,
                    old->xmit_unicasts_gb);

            UPDATE_STATS_GB(stst->iface.rcv_bytes,
                    newstats->rcv_bytes_gb,
                    old->rcv_bytes_gb);

            UPDATE_STATS_GB(stst->iface.rcv_ucast,
                    newstats->rcv_unicasts_gb,
                    old->rcv_unicasts_gb);

            UPDATE_STATS_GB(stst->iface.xmt_errors,
                    newstats->xmit_collisions_gb,
                    old->xmit_collisions_gb);

            UPDATE_STATS_GB(stst->iface.xmt_errors,
                    newstats->xmit_excess_collisions_gb,
                    old->xmit_excess_collisions_gb);

            UPDATE_STATS_GB(stst->iface.xmt_errors,
                    newstats->xmit_other_error_gb,
                    old->xmit_other_error_gb);

            UPDATE_STATS_GB(stst->iface.rcv_errors,
                    newstats->rcv_other_error_gb,
                    old->rcv_other_error_gb);

            UPDATE_STATS_GB(stst->iface.rcv_discards,
                    newstats->rcv_drops_gb,
                    old->rcv_drops_gb);

            if (newstats->rcv_drops_gb > old->rcv_drops_gb) {
                adapter->rcv_drops +=
                    (newstats->rcv_drops_gb -
                     old->rcv_drops_gb);
            }
            memcpy(old, newstats, sizeof(struct slic_stats));
            break;
        }
    case SLIC_UPR_RLSR:
        slic_link_upr_complete(adapter, isr);
        break;
    case SLIC_UPR_RCONFIG:
        break;
    case SLIC_UPR_RPHY:
        ASSERT(0);
        break;
    case SLIC_UPR_ENLB:
        ASSERT(0);
        break;
    case SLIC_UPR_ENCT:
        ASSERT(0);
        break;
    case SLIC_UPR_PDWN:
        ASSERT(0);
        break;
    case SLIC_UPR_PING:
        card->pingstatus |= (isr & ISR_PINGDSMASK);
        break;
    default:
        ASSERT(0);
    }
    kfree(upr);
    slic_upr_start(adapter);
    spin_unlock_irqrestore(&adapter->upr_lock.lock,
                adapter->upr_lock.flags);
}

static void slic_config_get(struct adapter *adapter, u32 config,
                            u32 config_h)
{
    int status;

    status = slic_upr_request(adapter,
                  SLIC_UPR_RCONFIG,
                  (u32) config, (u32) config_h, 0, 0);
    ASSERT(status == 0);
}

/*
 *  this is here to checksum the eeprom, there is some ucode bug
 *  which prevens us from using the ucode result.
 *  remove this once ucode is fixed.
 */
static ushort slic_eeprom_cksum(char *m, int len)
{
#define ADDCARRY(x)  (x > 65535 ? x -= 65535 : x)
#define REDUCE {l_util.l = sum; sum = l_util.s[0] + l_util.s[1]; ADDCARRY(sum);\
        }

    u16 *w;
    u32 sum = 0;
    u32 byte_swapped = 0;
    u32 w_int;

    union {
        char c[2];
        ushort s;
    } s_util;

    union {
        ushort s[2];
        int l;
    } l_util;

    l_util.l = 0;
    s_util.s = 0;

    w = (u16 *)m;
#if BITS_PER_LONG == 64
    w_int = (u32) ((ulong) w & 0x00000000FFFFFFFF);
#else
    w_int = (u32) (w);
#endif
    if ((1 & w_int) && (len > 0)) {
        REDUCE;
        sum <<= 8;
        s_util.c[0] = *(unsigned char *)w;
        w = (u16 *)((char *)w + 1);
        len--;
        byte_swapped = 1;
    }

    /* Unroll the loop to make overhead from branches &c small. */
    while ((len -= 32) >= 0) {
        sum += w[0];
        sum += w[1];
        sum += w[2];
        sum += w[3];
        sum += w[4];
        sum += w[5];
        sum += w[6];
        sum += w[7];
        sum += w[8];
        sum += w[9];
        sum += w[10];
        sum += w[11];
        sum += w[12];
        sum += w[13];
        sum += w[14];
        sum += w[15];
        w = (u16 *)((ulong) w + 16);    /* verify */
    }
    len += 32;
    while ((len -= 8) >= 0) {
        sum += w[0];
        sum += w[1];
        sum += w[2];
        sum += w[3];
        w = (u16 *)((ulong) w + 4); /* verify */
    }
    len += 8;
    if (len != 0 || byte_swapped != 0) {
        REDUCE;
        while ((len -= 2) >= 0)
            sum += *w++;    /* verify */
        if (byte_swapped) {
            REDUCE;
            sum <<= 8;
            byte_swapped = 0;
            if (len == -1) {
                s_util.c[1] = *(char *) w;
                sum += s_util.s;
                len = 0;
            } else {
                len = -1;
            }

        } else if (len == -1) {
            s_util.c[0] = *(char *) w;
        }

        if (len == -1) {
            s_util.c[1] = 0;
            sum += s_util.s;
        }
    }
    REDUCE;
    return (ushort) sum;
}

static void slic_rspqueue_free(struct adapter *adapter)
{
    int i;
    struct slic_rspqueue *rspq = &adapter->rspqueue;

    for (i = 0; i < rspq->num_pages; i++) {
        if (rspq->vaddr[i]) {
            pci_free_consistent(adapter->pcidev, PAGE_SIZE,
                        rspq->vaddr[i], rspq->paddr[i]);
        }
        rspq->vaddr[i] = NULL;
        rspq->paddr[i] = 0;
    }
    rspq->offset = 0;
    rspq->pageindex = 0;
    rspq->rspbuf = NULL;
}

static int slic_rspqueue_init(struct adapter *adapter)
{
    int i;
    struct slic_rspqueue *rspq = &adapter->rspqueue;
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;
    u32 paddrh = 0;

    ASSERT(adapter->state == ADAPT_DOWN);
    memset(rspq, 0, sizeof(struct slic_rspqueue));

    rspq->num_pages = SLIC_RSPQ_PAGES_GB;

    for (i = 0; i < rspq->num_pages; i++) {
        rspq->vaddr[i] = pci_alloc_consistent(adapter->pcidev,
                              PAGE_SIZE,
                              &rspq->paddr[i]);
        if (!rspq->vaddr[i]) {
            dev_err(&adapter->pcidev->dev,
                "pci_alloc_consistent failed\n");
            slic_rspqueue_free(adapter);
            return -ENOMEM;
        }
        /* FIXME:
         * do we really need this assertions (4K PAGE_SIZE aligned addr)? */
#if 0
#ifndef CONFIG_X86_64
        ASSERT(((u32) rspq->vaddr[i] & 0xFFFFF000) ==
               (u32) rspq->vaddr[i]);
        ASSERT(((u32) rspq->paddr[i] & 0xFFFFF000) ==
               (u32) rspq->paddr[i]);
#endif
#endif
        memset(rspq->vaddr[i], 0, PAGE_SIZE);

        if (paddrh == 0) {
            slic_reg32_write(&slic_regs->slic_rbar,
                (rspq->paddr[i] | SLIC_RSPQ_BUFSINPAGE),
                DONT_FLUSH);
        } else {
            slic_reg64_write(adapter, &slic_regs->slic_rbar64,
                (rspq->paddr[i] | SLIC_RSPQ_BUFSINPAGE),
                &slic_regs->slic_addr_upper,
                paddrh, DONT_FLUSH);
        }
    }
    rspq->offset = 0;
    rspq->pageindex = 0;
    rspq->rspbuf = (struct slic_rspbuf *)rspq->vaddr[0];
    return 0;
}

static struct slic_rspbuf *slic_rspqueue_getnext(struct adapter *adapter)
{
    struct slic_rspqueue *rspq = &adapter->rspqueue;
    struct slic_rspbuf *buf;

    if (!(rspq->rspbuf->status))
        return NULL;

    buf = rspq->rspbuf;
#if BITS_PER_LONG == 32
    ASSERT((buf->status & 0xFFFFFFE0) == 0);
#endif
    ASSERT(buf->hosthandle);
    if (++rspq->offset < SLIC_RSPQ_BUFSINPAGE) {
        rspq->rspbuf++;
#if BITS_PER_LONG == 32
        ASSERT(((u32) rspq->rspbuf & 0xFFFFFFE0) ==
               (u32) rspq->rspbuf);
#endif
    } else {
        ASSERT(rspq->offset == SLIC_RSPQ_BUFSINPAGE);
        slic_reg64_write(adapter, &adapter->slic_regs->slic_rbar64,
            (rspq->paddr[rspq->pageindex] | SLIC_RSPQ_BUFSINPAGE),
            &adapter->slic_regs->slic_addr_upper, 0, DONT_FLUSH);
        rspq->pageindex = (++rspq->pageindex) % rspq->num_pages;
        rspq->offset = 0;
        rspq->rspbuf = (struct slic_rspbuf *)
                        rspq->vaddr[rspq->pageindex];
#if BITS_PER_LONG == 32
        ASSERT(((u32) rspq->rspbuf & 0xFFFFF000) ==
               (u32) rspq->rspbuf);
#endif
    }
#if BITS_PER_LONG == 32
    ASSERT(((u32) buf & 0xFFFFFFE0) == (u32) buf);
#endif
    return buf;
}

static void slic_cmdqmem_init(struct adapter *adapter)
{
    struct slic_cmdqmem *cmdqmem = &adapter->cmdqmem;

    memset(cmdqmem, 0, sizeof(struct slic_cmdqmem));
}

static void slic_cmdqmem_free(struct adapter *adapter)
{
    struct slic_cmdqmem *cmdqmem = &adapter->cmdqmem;
    int i;

    for (i = 0; i < SLIC_CMDQ_MAXPAGES; i++) {
        if (cmdqmem->pages[i]) {
            pci_free_consistent(adapter->pcidev,
                        PAGE_SIZE,
                        (void *) cmdqmem->pages[i],
                        cmdqmem->dma_pages[i]);
        }
    }
    memset(cmdqmem, 0, sizeof(struct slic_cmdqmem));
}

static u32 *slic_cmdqmem_addpage(struct adapter *adapter)
{
    struct slic_cmdqmem *cmdqmem = &adapter->cmdqmem;
    u32 *pageaddr;

    if (cmdqmem->pagecnt >= SLIC_CMDQ_MAXPAGES)
        return NULL;
    pageaddr = pci_alloc_consistent(adapter->pcidev,
                    PAGE_SIZE,
                    &cmdqmem->dma_pages[cmdqmem->pagecnt]);
    if (!pageaddr)
        return NULL;
#if BITS_PER_LONG == 32
    ASSERT(((u32) pageaddr & 0xFFFFF000) == (u32) pageaddr);
#endif
    cmdqmem->pages[cmdqmem->pagecnt] = pageaddr;
    cmdqmem->pagecnt++;
    return pageaddr;
}

static void slic_cmdq_free(struct adapter *adapter)
{
    struct slic_hostcmd *cmd;

    cmd = adapter->cmdq_all.head;
    while (cmd) {
        if (cmd->busy) {
            struct sk_buff *tempskb;

            tempskb = cmd->skb;
            if (tempskb) {
                cmd->skb = NULL;
                dev_kfree_skb_irq(tempskb);
            }
        }
        cmd = cmd->next_all;
    }
    memset(&adapter->cmdq_all, 0, sizeof(struct slic_cmdqueue));
    memset(&adapter->cmdq_free, 0, sizeof(struct slic_cmdqueue));
    memset(&adapter->cmdq_done, 0, sizeof(struct slic_cmdqueue));
    slic_cmdqmem_free(adapter);
}

static void slic_cmdq_addcmdpage(struct adapter *adapter, u32 *page)
{
    struct slic_hostcmd *cmd;
    struct slic_hostcmd *prev;
    struct slic_hostcmd *tail;
    struct slic_cmdqueue *cmdq;
    int cmdcnt;
    void *cmdaddr;
    ulong phys_addr;
    u32 phys_addrl;
    u32 phys_addrh;
    struct slic_handle *pslic_handle;

    cmdaddr = page;
    cmd = (struct slic_hostcmd *)cmdaddr;
    cmdcnt = 0;

    phys_addr = virt_to_bus((void *)page);
    phys_addrl = SLIC_GET_ADDR_LOW(phys_addr);
    phys_addrh = SLIC_GET_ADDR_HIGH(phys_addr);

    prev = NULL;
    tail = cmd;
    while ((cmdcnt < SLIC_CMDQ_CMDSINPAGE) &&
           (adapter->slic_handle_ix < 256)) {
        /* Allocate and initialize a SLIC_HANDLE for this command */
        SLIC_GET_SLIC_HANDLE(adapter, pslic_handle);
        if (pslic_handle == NULL)
            ASSERT(0);
        ASSERT(pslic_handle ==
               &adapter->slic_handles[pslic_handle->token.
                          handle_index]);
        pslic_handle->type = SLIC_HANDLE_CMD;
        pslic_handle->address = (void *) cmd;
        pslic_handle->offset = (ushort) adapter->slic_handle_ix++;
        pslic_handle->other_handle = NULL;
        pslic_handle->next = NULL;

        cmd->pslic_handle = pslic_handle;
        cmd->cmd64.hosthandle = pslic_handle->token.handle_token;
        cmd->busy = false;
        cmd->paddrl = phys_addrl;
        cmd->paddrh = phys_addrh;
        cmd->next_all = prev;
        cmd->next = prev;
        prev = cmd;
        phys_addrl += SLIC_HOSTCMD_SIZE;
        cmdaddr += SLIC_HOSTCMD_SIZE;

        cmd = (struct slic_hostcmd *)cmdaddr;
        cmdcnt++;
    }

    cmdq = &adapter->cmdq_all;
    cmdq->count += cmdcnt;  /*  SLIC_CMDQ_CMDSINPAGE;   mooktodo */
    tail->next_all = cmdq->head;
    cmdq->head = prev;
    cmdq = &adapter->cmdq_free;
    spin_lock_irqsave(&cmdq->lock.lock, cmdq->lock.flags);
    cmdq->count += cmdcnt;  /*  SLIC_CMDQ_CMDSINPAGE;   mooktodo */
    tail->next = cmdq->head;
    cmdq->head = prev;
    spin_unlock_irqrestore(&cmdq->lock.lock, cmdq->lock.flags);
}

static int slic_cmdq_init(struct adapter *adapter)
{
    int i;
    u32 *pageaddr;

    ASSERT(adapter->state == ADAPT_DOWN);
    memset(&adapter->cmdq_all, 0, sizeof(struct slic_cmdqueue));
    memset(&adapter->cmdq_free, 0, sizeof(struct slic_cmdqueue));
    memset(&adapter->cmdq_done, 0, sizeof(struct slic_cmdqueue));
    spin_lock_init(&adapter->cmdq_all.lock.lock);
    spin_lock_init(&adapter->cmdq_free.lock.lock);
    spin_lock_init(&adapter->cmdq_done.lock.lock);
    slic_cmdqmem_init(adapter);
    adapter->slic_handle_ix = 1;
    for (i = 0; i < SLIC_CMDQ_INITPAGES; i++) {
        pageaddr = slic_cmdqmem_addpage(adapter);
#if BITS_PER_LONG == 32
        ASSERT(((u32) pageaddr & 0xFFFFF000) == (u32) pageaddr);
#endif
        if (!pageaddr) {
            slic_cmdq_free(adapter);
            return -ENOMEM;
        }
        slic_cmdq_addcmdpage(adapter, pageaddr);
    }
    adapter->slic_handle_ix = 1;

    return 0;
}

static void slic_cmdq_reset(struct adapter *adapter)
{
    struct slic_hostcmd *hcmd;
    struct sk_buff *skb;
    u32 outstanding;

    spin_lock_irqsave(&adapter->cmdq_free.lock.lock,
            adapter->cmdq_free.lock.flags);
    spin_lock_irqsave(&adapter->cmdq_done.lock.lock,
            adapter->cmdq_done.lock.flags);
    outstanding = adapter->cmdq_all.count - adapter->cmdq_done.count;
    outstanding -= adapter->cmdq_free.count;
    hcmd = adapter->cmdq_all.head;
    while (hcmd) {
        if (hcmd->busy) {
            skb = hcmd->skb;
            ASSERT(skb);
            hcmd->busy = 0;
            hcmd->skb = NULL;
            dev_kfree_skb_irq(skb);
        }
        hcmd = hcmd->next_all;
    }
    adapter->cmdq_free.count = 0;
    adapter->cmdq_free.head = NULL;
    adapter->cmdq_free.tail = NULL;
    adapter->cmdq_done.count = 0;
    adapter->cmdq_done.head = NULL;
    adapter->cmdq_done.tail = NULL;
    adapter->cmdq_free.head = adapter->cmdq_all.head;
    hcmd = adapter->cmdq_all.head;
    while (hcmd) {
        adapter->cmdq_free.count++;
        hcmd->next = hcmd->next_all;
        hcmd = hcmd->next_all;
    }
    if (adapter->cmdq_free.count != adapter->cmdq_all.count) {
        dev_err(&adapter->netdev->dev,
            "free_count %d != all count %d\n",
            adapter->cmdq_free.count, adapter->cmdq_all.count);
    }
    spin_unlock_irqrestore(&adapter->cmdq_done.lock.lock,
                adapter->cmdq_done.lock.flags);
    spin_unlock_irqrestore(&adapter->cmdq_free.lock.lock,
                adapter->cmdq_free.lock.flags);
}

static void slic_cmdq_getdone(struct adapter *adapter)
{
    struct slic_cmdqueue *done_cmdq = &adapter->cmdq_done;
    struct slic_cmdqueue *free_cmdq = &adapter->cmdq_free;

    ASSERT(free_cmdq->head == NULL);
    spin_lock_irqsave(&done_cmdq->lock.lock, done_cmdq->lock.flags);

    free_cmdq->head = done_cmdq->head;
    free_cmdq->count = done_cmdq->count;
    done_cmdq->head = NULL;
    done_cmdq->tail = NULL;
    done_cmdq->count = 0;
    spin_unlock_irqrestore(&done_cmdq->lock.lock, done_cmdq->lock.flags);
}

static struct slic_hostcmd *slic_cmdq_getfree(struct adapter *adapter)
{
    struct slic_cmdqueue *cmdq = &adapter->cmdq_free;
    struct slic_hostcmd *cmd = NULL;

lock_and_retry:
    spin_lock_irqsave(&cmdq->lock.lock, cmdq->lock.flags);
retry:
    cmd = cmdq->head;
    if (cmd) {
        cmdq->head = cmd->next;
        cmdq->count--;
        spin_unlock_irqrestore(&cmdq->lock.lock, cmdq->lock.flags);
    } else {
        slic_cmdq_getdone(adapter);
        cmd = cmdq->head;
        if (cmd) {
            goto retry;
        } else {
            u32 *pageaddr;

            spin_unlock_irqrestore(&cmdq->lock.lock,
                        cmdq->lock.flags);
            pageaddr = slic_cmdqmem_addpage(adapter);
            if (pageaddr) {
                slic_cmdq_addcmdpage(adapter, pageaddr);
                goto lock_and_retry;
            }
        }
    }
    return cmd;
}

static void slic_cmdq_putdone_irq(struct adapter *adapter,
                struct slic_hostcmd *cmd)
{
    struct slic_cmdqueue *cmdq = &adapter->cmdq_done;

    spin_lock(&cmdq->lock.lock);
    cmd->busy = 0;
    cmd->next = cmdq->head;
    cmdq->head = cmd;
    cmdq->count++;
    if ((adapter->xmitq_full) && (cmdq->count > 10))
        netif_wake_queue(adapter->netdev);
    spin_unlock(&cmdq->lock.lock);
}

static int slic_rcvqueue_fill(struct adapter *adapter)
{
    void *paddr;
    u32 paddrl;
    u32 paddrh;
    struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
    int i = 0;
    struct device *dev = &adapter->netdev->dev;

    while (i < SLIC_RCVQ_FILLENTRIES) {
        struct slic_rcvbuf *rcvbuf;
        struct sk_buff *skb;
#ifdef KLUDGE_FOR_4GB_BOUNDARY
retry_rcvqfill:
#endif
        skb = alloc_skb(SLIC_RCVQ_RCVBUFSIZE, GFP_ATOMIC);
        if (skb) {
            paddr = (void *)pci_map_single(adapter->pcidev,
                              skb->data,
                              SLIC_RCVQ_RCVBUFSIZE,
                              PCI_DMA_FROMDEVICE);
            paddrl = SLIC_GET_ADDR_LOW(paddr);
            paddrh = SLIC_GET_ADDR_HIGH(paddr);

            skb->len = SLIC_RCVBUF_HEADSIZE;
            rcvbuf = (struct slic_rcvbuf *)skb->head;
            rcvbuf->status = 0;
            skb->next = NULL;
#ifdef KLUDGE_FOR_4GB_BOUNDARY
            if (paddrl == 0) {
                dev_err(dev, "%s: LOW 32bits PHYSICAL ADDRESS == 0\n",
                    __func__);
                dev_err(dev, "skb[%p] PROBLEM\n", skb);
                dev_err(dev, "         skbdata[%p]\n", skb->data);
                dev_err(dev, "         skblen[%x]\n", skb->len);
                dev_err(dev, "         paddr[%p]\n", paddr);
                dev_err(dev, "         paddrl[%x]\n", paddrl);
                dev_err(dev, "         paddrh[%x]\n", paddrh);
                dev_err(dev, "         rcvq->head[%p]\n", rcvq->head);
                dev_err(dev, "         rcvq->tail[%p]\n", rcvq->tail);
                dev_err(dev, "         rcvq->count[%x]\n", rcvq->count);
                dev_err(dev, "SKIP THIS SKB!!!!!!!!\n");
                goto retry_rcvqfill;
            }
#else
            if (paddrl == 0) {
                dev_err(dev, "%s: LOW 32bits PHYSICAL ADDRESS == 0\n",
                    __func__);
                dev_err(dev, "skb[%p] PROBLEM\n", skb);
                dev_err(dev, "         skbdata[%p]\n", skb->data);
                dev_err(dev, "         skblen[%x]\n", skb->len);
                dev_err(dev, "         paddr[%p]\n", paddr);
                dev_err(dev, "         paddrl[%x]\n", paddrl);
                dev_err(dev, "         paddrh[%x]\n", paddrh);
                dev_err(dev, "         rcvq->head[%p]\n", rcvq->head);
                dev_err(dev, "         rcvq->tail[%p]\n", rcvq->tail);
                dev_err(dev, "         rcvq->count[%x]\n", rcvq->count);
                dev_err(dev, "GIVE TO CARD ANYWAY\n");
            }
#endif
            if (paddrh == 0) {
                slic_reg32_write(&adapter->slic_regs->slic_hbar,
                         (u32)paddrl, DONT_FLUSH);
            } else {
                slic_reg64_write(adapter,
                    &adapter->slic_regs->slic_hbar64,
                    paddrl,
                    &adapter->slic_regs->slic_addr_upper,
                    paddrh, DONT_FLUSH);
            }
            if (rcvq->head)
                rcvq->tail->next = skb;
            else
                rcvq->head = skb;
            rcvq->tail = skb;
            rcvq->count++;
            i++;
        } else {
            dev_err(&adapter->netdev->dev,
                "slic_rcvqueue_fill could only get [%d] skbuffs\n",
                i);
            break;
        }
    }
    return i;
}

static void slic_rcvqueue_free(struct adapter *adapter)
{
    struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
    struct sk_buff *skb;

    while (rcvq->head) {
        skb = rcvq->head;
        rcvq->head = rcvq->head->next;
        dev_kfree_skb(skb);
    }
    rcvq->tail = NULL;
    rcvq->head = NULL;
    rcvq->count = 0;
}

static int slic_rcvqueue_init(struct adapter *adapter)
{
    int i, count;
    struct slic_rcvqueue *rcvq = &adapter->rcvqueue;

    ASSERT(adapter->state == ADAPT_DOWN);
    rcvq->tail = NULL;
    rcvq->head = NULL;
    rcvq->size = SLIC_RCVQ_ENTRIES;
    rcvq->errors = 0;
    rcvq->count = 0;
    i = (SLIC_RCVQ_ENTRIES / SLIC_RCVQ_FILLENTRIES);
    count = 0;
    while (i) {
        count += slic_rcvqueue_fill(adapter);
        i--;
    }
    if (rcvq->count < SLIC_RCVQ_MINENTRIES) {
        slic_rcvqueue_free(adapter);
        return -ENOMEM;
    }
    return 0;
}

static struct sk_buff *slic_rcvqueue_getnext(struct adapter *adapter)
{
    struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
    struct sk_buff *skb;
    struct slic_rcvbuf *rcvbuf;
    int count;

    if (rcvq->count) {
        skb = rcvq->head;
        rcvbuf = (struct slic_rcvbuf *)skb->head;
        ASSERT(rcvbuf);

        if (rcvbuf->status & IRHDDR_SVALID) {
            rcvq->head = rcvq->head->next;
            skb->next = NULL;
            rcvq->count--;
        } else {
            skb = NULL;
        }
    } else {
        dev_err(&adapter->netdev->dev,
            "RcvQ Empty!! rcvq[%p] count[%x]\n", rcvq, rcvq->count);
        skb = NULL;
    }
    while (rcvq->count < SLIC_RCVQ_FILLTHRESH) {
        count = slic_rcvqueue_fill(adapter);
        if (!count)
            break;
    }
    if (skb)
        rcvq->errors = 0;
    return skb;
}

static u32 slic_rcvqueue_reinsert(struct adapter *adapter, struct sk_buff *skb)
{
    struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
    void *paddr;
    u32 paddrl;
    u32 paddrh;
    struct slic_rcvbuf *rcvbuf = (struct slic_rcvbuf *)skb->head;
    struct device *dev;

    ASSERT(skb->len == SLIC_RCVBUF_HEADSIZE);

    paddr = (void *)pci_map_single(adapter->pcidev, skb->head,
                  SLIC_RCVQ_RCVBUFSIZE, PCI_DMA_FROMDEVICE);
    rcvbuf->status = 0;
    skb->next = NULL;

    paddrl = SLIC_GET_ADDR_LOW(paddr);
    paddrh = SLIC_GET_ADDR_HIGH(paddr);

    if (paddrl == 0) {
        dev = &adapter->netdev->dev;
        dev_err(dev, "%s: LOW 32bits PHYSICAL ADDRESS == 0\n",
            __func__);
        dev_err(dev, "skb[%p] PROBLEM\n", skb);
        dev_err(dev, "         skbdata[%p]\n", skb->data);
        dev_err(dev, "         skblen[%x]\n", skb->len);
        dev_err(dev, "         paddr[%p]\n", paddr);
        dev_err(dev, "         paddrl[%x]\n", paddrl);
        dev_err(dev, "         paddrh[%x]\n", paddrh);
        dev_err(dev, "         rcvq->head[%p]\n", rcvq->head);
        dev_err(dev, "         rcvq->tail[%p]\n", rcvq->tail);
        dev_err(dev, "         rcvq->count[%x]\n", rcvq->count);
    }
    if (paddrh == 0) {
        slic_reg32_write(&adapter->slic_regs->slic_hbar, (u32)paddrl,
                 DONT_FLUSH);
    } else {
        slic_reg64_write(adapter, &adapter->slic_regs->slic_hbar64,
                 paddrl, &adapter->slic_regs->slic_addr_upper,
                 paddrh, DONT_FLUSH);
    }
    if (rcvq->head)
        rcvq->tail->next = skb;
    else
        rcvq->head = skb;
    rcvq->tail = skb;
    rcvq->count++;
    return rcvq->count;
}

static int slic_debug_card_show(struct seq_file *seq, void *v)
{
#ifdef MOOKTODO
    int i;
    struct sliccard *card = seq->private;
    struct slic_config *config = &card->config;
    unsigned char *fru = (unsigned char *)(&card->config.atk_fru);
    unsigned char *oemfru = (unsigned char *)(&card->config.OemFru);
#endif

    seq_printf(seq, "driver_version           : %s\n", slic_proc_version);
    seq_printf(seq, "Microcode versions:           \n");
    seq_printf(seq, "    Gigabit (gb)         : %s %s\n",
            MOJAVE_UCODE_VERS_STRING, MOJAVE_UCODE_VERS_DATE);
    seq_printf(seq, "    Gigabit Receiver     : %s %s\n",
            GB_RCVUCODE_VERS_STRING, GB_RCVUCODE_VERS_DATE);
    seq_printf(seq, "Vendor                   : %s\n", slic_vendor);
    seq_printf(seq, "Product Name             : %s\n", slic_product_name);
#ifdef MOOKTODO
    seq_printf(seq, "VendorId                 : %4.4X\n",
            config->VendorId);
    seq_printf(seq, "DeviceId                 : %4.4X\n",
            config->DeviceId);
    seq_printf(seq, "RevisionId               : %2.2x\n",
            config->RevisionId);
    seq_printf(seq, "Bus    #                 : %d\n", card->busnumber);
    seq_printf(seq, "Device #                 : %d\n", card->slotnumber);
    seq_printf(seq, "Interfaces               : %d\n", card->card_size);
    seq_printf(seq, "     Initialized         : %d\n",
            card->adapters_activated);
    seq_printf(seq, "     Allocated           : %d\n",
            card->adapters_allocated);
    ASSERT(card->card_size <= SLIC_NBR_MACS);
    for (i = 0; i < card->card_size; i++) {
        seq_printf(seq,
               "     MAC%d : %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n",
               i, config->macinfo[i].macaddrA[0],
               config->macinfo[i].macaddrA[1],
               config->macinfo[i].macaddrA[2],
               config->macinfo[i].macaddrA[3],
               config->macinfo[i].macaddrA[4],
               config->macinfo[i].macaddrA[5]);
    }
    seq_printf(seq, "     IF  Init State Duplex/Speed irq\n");
    seq_printf(seq, "     -------------------------------\n");
    for (i = 0; i < card->adapters_allocated; i++) {
        struct adapter *adapter;

        adapter = card->adapter[i];
        if (adapter) {
            seq_printf(seq,
                    "     %d   %d   %s  %s  %s    0x%X\n",
                    adapter->physport, adapter->state,
                    SLIC_LINKSTATE(adapter->linkstate),
                    SLIC_DUPLEX(adapter->linkduplex),
                    SLIC_SPEED(adapter->linkspeed),
                    (uint) adapter->irq);
        }
    }
    seq_printf(seq, "Generation #             : %4.4X\n", card->gennumber);
    seq_printf(seq, "RcvQ max entries         : %4.4X\n",
            SLIC_RCVQ_ENTRIES);
    seq_printf(seq, "Ping Status              : %8.8X\n",
            card->pingstatus);
    seq_printf(seq, "Minimum grant            : %2.2x\n",
            config->MinGrant);
    seq_printf(seq, "Maximum Latency          : %2.2x\n", config->MaxLat);
    seq_printf(seq, "PciStatus                : %4.4x\n",
            config->Pcistatus);
    seq_printf(seq, "Debug Device Id          : %4.4x\n",
            config->DbgDevId);
    seq_printf(seq, "DRAM ROM Function        : %4.4x\n",
            config->DramRomFn);
    seq_printf(seq, "Network interface Pin 1  : %2.2x\n",
            config->NetIntPin1);
    seq_printf(seq, "Network interface Pin 2  : %2.2x\n",
            config->NetIntPin1);
    seq_printf(seq, "Network interface Pin 3  : %2.2x\n",
            config->NetIntPin1);
    seq_printf(seq, "PM capabilities          : %4.4X\n",
            config->PMECapab);
    seq_printf(seq, "Network Clock Controls   : %4.4X\n",
            config->NwClkCtrls);

    switch (config->FruFormat) {
    case ATK_FRU_FORMAT:
        {
            seq_printf(seq,
                "Vendor                   : Alacritech, Inc.\n");
            seq_printf(seq,
                "Assembly #               : %c%c%c%c%c%c\n",
                    fru[0], fru[1], fru[2], fru[3], fru[4],
                    fru[5]);
            seq_printf(seq,
                    "Revision #               : %c%c\n",
                    fru[6], fru[7]);

            if (config->OEMFruFormat == VENDOR4_FRU_FORMAT) {
                seq_printf(seq,
                        "Serial   #               : "
                        "%c%c%c%c%c%c%c%c%c%c%c%c\n",
                        fru[8], fru[9], fru[10],
                        fru[11], fru[12], fru[13],
                        fru[16], fru[17], fru[18],
                        fru[19], fru[20], fru[21]);
            } else {
                seq_printf(seq,
                        "Serial   #               : "
                        "%c%c%c%c%c%c%c%c%c%c%c%c%c%c\n",
                        fru[8], fru[9], fru[10],
                        fru[11], fru[12], fru[13],
                        fru[14], fru[15], fru[16],
                        fru[17], fru[18], fru[19],
                        fru[20], fru[21]);
            }
            break;
        }

    default:
        {
            seq_printf(seq,
                "Vendor                   : Alacritech, Inc.\n");
            seq_printf(seq,
                "Serial   #               : Empty FRU\n");
            break;
        }
    }

    switch (config->OEMFruFormat) {
    case VENDOR1_FRU_FORMAT:
        {
            seq_printf(seq, "FRU Information:\n");
            seq_printf(seq, "    Commodity #          : %c\n",
                    oemfru[0]);
            seq_printf(seq,
                    "    Assembly #           : %c%c%c%c\n",
                    oemfru[1], oemfru[2], oemfru[3], oemfru[4]);
            seq_printf(seq,
                    "    Revision #           : %c%c\n",
                    oemfru[5], oemfru[6]);
            seq_printf(seq,
                    "    Supplier #           : %c%c\n",
                    oemfru[7], oemfru[8]);
            seq_printf(seq,
                    "    Date                 : %c%c\n",
                    oemfru[9], oemfru[10]);
            seq_sprintf(seq,
                    "    Sequence #           : %c%c%c\n",
                    oemfru[11], oemfru[12], oemfru[13]);
            break;
        }

    case VENDOR2_FRU_FORMAT:
        {
            seq_printf(seq, "FRU Information:\n");
            seq_printf(seq,
                    "    Part     #           : "
                    "%c%c%c%c%c%c%c%c\n",
                    oemfru[0], oemfru[1], oemfru[2],
                    oemfru[3], oemfru[4], oemfru[5],
                    oemfru[6], oemfru[7]);
            seq_printf(seq,
                    "    Supplier #           : %c%c%c%c%c\n",
                    oemfru[8], oemfru[9], oemfru[10],
                    oemfru[11], oemfru[12]);
            seq_printf(seq,
                    "    Date                 : %c%c%c\n",
                    oemfru[13], oemfru[14], oemfru[15]);
            seq_sprintf(seq,
                    "    Sequence #           : %c%c%c%c\n",
                    oemfru[16], oemfru[17], oemfru[18],
                    oemfru[19]);
            break;
        }

    case VENDOR3_FRU_FORMAT:
        {
            seq_printf(seq, "FRU Information:\n");
        }

    case VENDOR4_FRU_FORMAT:
        {
            seq_printf(seq, "FRU Information:\n");
            seq_printf(seq,
                    "    FRU Number           : "
                    "%c%c%c%c%c%c%c%c\n",
                    oemfru[0], oemfru[1], oemfru[2],
                    oemfru[3], oemfru[4], oemfru[5],
                    oemfru[6], oemfru[7]);
            seq_sprintf(seq,
                    "    Part Number          : "
                    "%c%c%c%c%c%c%c%c\n",
                    oemfru[8], oemfru[9], oemfru[10],
                    oemfru[11], oemfru[12], oemfru[13],
                    oemfru[14], oemfru[15]);
            seq_printf(seq,
                    "    EC Level             : "
                    "%c%c%c%c%c%c%c%c\n",
                    oemfru[16], oemfru[17], oemfru[18],
                    oemfru[19], oemfru[20], oemfru[21],
                    oemfru[22], oemfru[23]);
            break;
        }

    default:
        break;
    }
#endif

    return 0;
}

static int slic_debug_adapter_show(struct seq_file *seq, void *v)
{
    struct adapter *adapter = seq->private;
    struct net_device *netdev = adapter->netdev;

    seq_printf(seq, "info: interface          : %s\n",
                adapter->netdev->name);
    seq_printf(seq, "info: status             : %s\n",
        SLIC_LINKSTATE(adapter->linkstate));
    seq_printf(seq, "info: port               : %d\n",
        adapter->physport);
    seq_printf(seq, "info: speed              : %s\n",
        SLIC_SPEED(adapter->linkspeed));
    seq_printf(seq, "info: duplex             : %s\n",
        SLIC_DUPLEX(adapter->linkduplex));
    seq_printf(seq, "info: irq                : 0x%X\n",
        (uint) adapter->irq);
    seq_printf(seq, "info: Interrupt Agg Delay: %d usec\n",
        adapter->card->loadlevel_current);
    seq_printf(seq, "info: RcvQ max entries   : %4.4X\n",
        SLIC_RCVQ_ENTRIES);
    seq_printf(seq, "info: RcvQ current       : %4.4X\n",
            adapter->rcvqueue.count);
    seq_printf(seq, "rx stats: packets                  : %8.8lX\n",
            netdev->stats.rx_packets);
    seq_printf(seq, "rx stats: bytes                    : %8.8lX\n",
            netdev->stats.rx_bytes);
    seq_printf(seq, "rx stats: broadcasts               : %8.8X\n",
            adapter->rcv_broadcasts);
    seq_printf(seq, "rx stats: multicasts               : %8.8X\n",
            adapter->rcv_multicasts);
    seq_printf(seq, "rx stats: unicasts                 : %8.8X\n",
            adapter->rcv_unicasts);
    seq_printf(seq, "rx stats: errors                   : %8.8X\n",
            (u32) adapter->slic_stats.iface.rcv_errors);
    seq_printf(seq, "rx stats: Missed errors            : %8.8X\n",
            (u32) adapter->slic_stats.iface.rcv_discards);
    seq_printf(seq, "rx stats: drops                    : %8.8X\n",
            (u32) adapter->rcv_drops);
    seq_printf(seq, "tx stats: packets                  : %8.8lX\n",
            netdev->stats.tx_packets);
    seq_printf(seq, "tx stats: bytes                    : %8.8lX\n",
            netdev->stats.tx_bytes);
    seq_printf(seq, "tx stats: errors                   : %8.8X\n",
            (u32) adapter->slic_stats.iface.xmt_errors);
    seq_printf(seq, "rx stats: multicasts               : %8.8lX\n",
            netdev->stats.multicast);
    seq_printf(seq, "tx stats: collision errors         : %8.8X\n",
            (u32) adapter->slic_stats.iface.xmit_collisions);
    seq_printf(seq, "perf: Max rcv frames/isr           : %8.8X\n",
            adapter->max_isr_rcvs);
    seq_printf(seq, "perf: Rcv interrupt yields         : %8.8X\n",
            adapter->rcv_interrupt_yields);
    seq_printf(seq, "perf: Max xmit complete/isr        : %8.8X\n",
            adapter->max_isr_xmits);
    seq_printf(seq, "perf: error interrupts             : %8.8X\n",
            adapter->error_interrupts);
    seq_printf(seq, "perf: error rmiss interrupts       : %8.8X\n",
            adapter->error_rmiss_interrupts);
    seq_printf(seq, "perf: rcv interrupts               : %8.8X\n",
            adapter->rcv_interrupts);
    seq_printf(seq, "perf: xmit interrupts              : %8.8X\n",
            adapter->xmit_interrupts);
    seq_printf(seq, "perf: link event interrupts        : %8.8X\n",
            adapter->linkevent_interrupts);
    seq_printf(seq, "perf: UPR interrupts               : %8.8X\n",
            adapter->upr_interrupts);
    seq_printf(seq, "perf: interrupt count              : %8.8X\n",
            adapter->num_isrs);
    seq_printf(seq, "perf: false interrupts             : %8.8X\n",
            adapter->false_interrupts);
    seq_printf(seq, "perf: All register writes          : %8.8X\n",
            adapter->all_reg_writes);
    seq_printf(seq, "perf: ICR register writes          : %8.8X\n",
            adapter->icr_reg_writes);
    seq_printf(seq, "perf: ISR register writes          : %8.8X\n",
            adapter->isr_reg_writes);
    seq_printf(seq, "ifevents: overflow 802 errors      : %8.8X\n",
            adapter->if_events.oflow802);
    seq_printf(seq, "ifevents: transport overflow errors: %8.8X\n",
            adapter->if_events.Tprtoflow);
    seq_printf(seq, "ifevents: underflow errors         : %8.8X\n",
            adapter->if_events.uflow802);
    seq_printf(seq, "ifevents: receive early            : %8.8X\n",
            adapter->if_events.rcvearly);
    seq_printf(seq, "ifevents: buffer overflows         : %8.8X\n",
            adapter->if_events.Bufov);
    seq_printf(seq, "ifevents: carrier errors           : %8.8X\n",
            adapter->if_events.Carre);
    seq_printf(seq, "ifevents: Long                     : %8.8X\n",
            adapter->if_events.Longe);
    seq_printf(seq, "ifevents: invalid preambles        : %8.8X\n",
            adapter->if_events.Invp);
    seq_printf(seq, "ifevents: CRC errors               : %8.8X\n",
            adapter->if_events.Crc);
    seq_printf(seq, "ifevents: dribble nibbles          : %8.8X\n",
            adapter->if_events.Drbl);
    seq_printf(seq, "ifevents: Code violations          : %8.8X\n",
            adapter->if_events.Code);
    seq_printf(seq, "ifevents: TCP checksum errors      : %8.8X\n",
            adapter->if_events.TpCsum);
    seq_printf(seq, "ifevents: TCP header short errors  : %8.8X\n",
            adapter->if_events.TpHlen);
    seq_printf(seq, "ifevents: IP checksum errors       : %8.8X\n",
            adapter->if_events.IpCsum);
    seq_printf(seq, "ifevents: IP frame incompletes     : %8.8X\n",
            adapter->if_events.IpLen);
    seq_printf(seq, "ifevents: IP headers shorts        : %8.8X\n",
            adapter->if_events.IpHlen);

    return 0;
}
static int slic_debug_adapter_open(struct inode *inode, struct file *file)
{
    return single_open(file, slic_debug_adapter_show, inode->i_private);
}

static int slic_debug_card_open(struct inode *inode, struct file *file)
{
    return single_open(file, slic_debug_card_show, inode->i_private);
}

static const struct file_operations slic_debug_adapter_fops = {
    .owner      = THIS_MODULE,
    .open       = slic_debug_adapter_open,
    .read       = seq_read,
    .llseek     = seq_lseek,
    .release    = single_release,
};

static const struct file_operations slic_debug_card_fops = {
    .owner      = THIS_MODULE,
    .open       = slic_debug_card_open,
    .read       = seq_read,
    .llseek     = seq_lseek,
    .release    = single_release,
};

static void slic_debug_adapter_create(struct adapter *adapter)
{
    struct dentry *d;
    char    name[7];
    struct sliccard *card = adapter->card;

    if (!card->debugfs_dir)
        return;

    sprintf(name, "port%d", adapter->port);
    d = debugfs_create_file(name, S_IRUGO,
                card->debugfs_dir, adapter,
                &slic_debug_adapter_fops);
    if (!d || IS_ERR(d))
        pr_info(PFX "%s: debugfs create failed\n", name);
    else
        adapter->debugfs_entry = d;
}

static void slic_debug_adapter_destroy(struct adapter *adapter)
{
    debugfs_remove(adapter->debugfs_entry);
    adapter->debugfs_entry = NULL;
}

static void slic_debug_card_create(struct sliccard *card)
{
    struct dentry *d;
    char    name[IFNAMSIZ];

    snprintf(name, sizeof(name), "slic%d", card->cardnum);
    d = debugfs_create_dir(name, slic_debugfs);
    if (!d || IS_ERR(d))
        pr_info(PFX "%s: debugfs create dir failed\n",
                name);
    else {
        card->debugfs_dir = d;
        d = debugfs_create_file("cardinfo", S_IRUGO,
                slic_debugfs, card,
                &slic_debug_card_fops);
        if (!d || IS_ERR(d))
            pr_info(PFX "%s: debugfs create failed\n",
                    name);
        else
            card->debugfs_cardinfo = d;
    }
}

static void slic_debug_card_destroy(struct sliccard *card)
{
    int i;

    for (i = 0; i < card->card_size; i++) {
        struct adapter *adapter;

        adapter = card->adapter[i];
        if (adapter)
            slic_debug_adapter_destroy(adapter);
    }
    if (card->debugfs_cardinfo) {
        debugfs_remove(card->debugfs_cardinfo);
        card->debugfs_cardinfo = NULL;
    }
    if (card->debugfs_dir) {
        debugfs_remove(card->debugfs_dir);
        card->debugfs_dir = NULL;
    }
}

static void slic_debug_init(void)
{
    struct dentry *ent;

    ent = debugfs_create_dir("slic", NULL);
    if (!ent || IS_ERR(ent)) {
        pr_info(PFX "debugfs create directory failed\n");
        return;
    }

    slic_debugfs = ent;
}

static void slic_debug_cleanup(void)
{
    if (slic_debugfs) {
        debugfs_remove(slic_debugfs);
        slic_debugfs = NULL;
    }
}

/*
 * slic_link_event_handler -
 *
 * Initiate a link configuration sequence.  The link configuration begins
 * by issuing a READ_LINK_STATUS command to the Utility Processor on the
 * SLIC.  Since the command finishes asynchronously, the slic_upr_comlete
 * routine will follow it up witha UP configuration write command, which
 * will also complete asynchronously.
 *
 */
static void slic_link_event_handler(struct adapter *adapter)
{
    int status;
    struct slic_shmem *pshmem;

    if (adapter->state != ADAPT_UP) {
        /* Adapter is not operational.  Ignore.  */
        return;
    }

    pshmem = (struct slic_shmem *)adapter->phys_shmem;

#if BITS_PER_LONG == 64
    status = slic_upr_request(adapter,
                  SLIC_UPR_RLSR,
                  SLIC_GET_ADDR_LOW(&pshmem->linkstatus),
                  SLIC_GET_ADDR_HIGH(&pshmem->linkstatus),
                  0, 0);
#else
    status = slic_upr_request(adapter, SLIC_UPR_RLSR,
        (u32) &pshmem->linkstatus,  /* no 4GB wrap guaranteed */
                  0, 0, 0);
#endif
    ASSERT(status == 0);
}

static void slic_init_cleanup(struct adapter *adapter)
{
    if (adapter->intrregistered) {
        adapter->intrregistered = 0;
        free_irq(adapter->netdev->irq, adapter->netdev);

    }
    if (adapter->pshmem) {
        pci_free_consistent(adapter->pcidev,
                    sizeof(struct slic_shmem),
                    adapter->pshmem, adapter->phys_shmem);
        adapter->pshmem = NULL;
        adapter->phys_shmem = (dma_addr_t) NULL;
    }

    if (adapter->pingtimerset) {
        adapter->pingtimerset = 0;
        del_timer(&adapter->pingtimer);
    }

    slic_rspqueue_free(adapter);
    slic_cmdq_free(adapter);
    slic_rcvqueue_free(adapter);
}

/*
 *  Allocate a mcast_address structure to hold the multicast address.
 *  Link it in.
 */
static int slic_mcast_add_list(struct adapter *adapter, char *address)
{
    struct mcast_address *mcaddr, *mlist;

    /* Check to see if it already exists */
    mlist = adapter->mcastaddrs;
    while (mlist) {
        if (!compare_ether_addr(mlist->address, address))
            return 0;
        mlist = mlist->next;
    }

    /* Doesn't already exist.  Allocate a structure to hold it */
    mcaddr = kmalloc(sizeof(struct mcast_address), GFP_ATOMIC);
    if (mcaddr == NULL)
        return 1;

    memcpy(mcaddr->address, address, 6);

    mcaddr->next = adapter->mcastaddrs;
    adapter->mcastaddrs = mcaddr;

    return 0;
}

static void slic_mcast_set_list(struct net_device *dev)
{
    struct adapter *adapter = netdev_priv(dev);
    int status = 0;
    char *addresses;
    struct netdev_hw_addr *ha;

    ASSERT(adapter);

    netdev_for_each_mc_addr(ha, dev) {
        addresses = (char *) &ha->addr;
        status = slic_mcast_add_list(adapter, addresses);
        if (status != 0)
            break;
        slic_mcast_set_bit(adapter, addresses);
    }

    if (adapter->devflags_prev != dev->flags) {
        adapter->macopts = MAC_DIRECTED;
        if (dev->flags) {
            if (dev->flags & IFF_BROADCAST)
                adapter->macopts |= MAC_BCAST;
            if (dev->flags & IFF_PROMISC)
                adapter->macopts |= MAC_PROMISC;
            if (dev->flags & IFF_ALLMULTI)
                adapter->macopts |= MAC_ALLMCAST;
            if (dev->flags & IFF_MULTICAST)
                adapter->macopts |= MAC_MCAST;
        }
        adapter->devflags_prev = dev->flags;
        slic_config_set(adapter, true);
    } else {
        if (status == 0)
            slic_mcast_set_mask(adapter);
    }
}

#define  XMIT_FAIL_LINK_STATE               1
#define  XMIT_FAIL_ZERO_LENGTH              2
#define  XMIT_FAIL_HOSTCMD_FAIL             3

static void slic_xmit_build_request(struct adapter *adapter,
                 struct slic_hostcmd *hcmd, struct sk_buff *skb)
{
    struct slic_host64_cmd *ihcmd;
    ulong phys_addr;

    ihcmd = &hcmd->cmd64;

    ihcmd->flags = (adapter->port << IHFLG_IFSHFT);
    ihcmd->command = IHCMD_XMT_REQ;
    ihcmd->u.slic_buffers.totlen = skb->len;
    phys_addr = pci_map_single(adapter->pcidev, skb->data, skb->len,
            PCI_DMA_TODEVICE);
    ihcmd->u.slic_buffers.bufs[0].paddrl = SLIC_GET_ADDR_LOW(phys_addr);
    ihcmd->u.slic_buffers.bufs[0].paddrh = SLIC_GET_ADDR_HIGH(phys_addr);
    ihcmd->u.slic_buffers.bufs[0].length = skb->len;
#if BITS_PER_LONG == 64
    hcmd->cmdsize = (u32) ((((u64)&ihcmd->u.slic_buffers.bufs[1] -
                     (u64) hcmd) + 31) >> 5);
#else
    hcmd->cmdsize = ((((u32) &ihcmd->u.slic_buffers.bufs[1] -
               (u32) hcmd) + 31) >> 5);
#endif
}

static void slic_xmit_fail(struct adapter *adapter,
            struct sk_buff *skb,
            void *cmd, u32 skbtype, u32 status)
{
    if (adapter->xmitq_full)
        netif_stop_queue(adapter->netdev);
    if ((cmd == NULL) && (status <= XMIT_FAIL_HOSTCMD_FAIL)) {
        switch (status) {
        case XMIT_FAIL_LINK_STATE:
            dev_err(&adapter->netdev->dev,
                "reject xmit skb[%p: %x] linkstate[%s] "
                "adapter[%s:%d] card[%s:%d]\n",
                skb, skb->pkt_type,
                SLIC_LINKSTATE(adapter->linkstate),
                SLIC_ADAPTER_STATE(adapter->state),
                adapter->state,
                SLIC_CARD_STATE(adapter->card->state),
                adapter->card->state);
            break;
        case XMIT_FAIL_ZERO_LENGTH:
            dev_err(&adapter->netdev->dev,
                "xmit_start skb->len == 0 skb[%p] type[%x]\n",
                skb, skb->pkt_type);
            break;
        case XMIT_FAIL_HOSTCMD_FAIL:
            dev_err(&adapter->netdev->dev,
                "xmit_start skb[%p] type[%x] No host commands "
                "available\n", skb, skb->pkt_type);
            break;
        default:
            ASSERT(0);
        }
    }
    dev_kfree_skb(skb);
    adapter->netdev->stats.tx_dropped++;
}

static void slic_rcv_handle_error(struct adapter *adapter,
                    struct slic_rcvbuf *rcvbuf)
{
    struct slic_hddr_wds *hdr = (struct slic_hddr_wds *)rcvbuf->data;
    struct net_device *netdev = adapter->netdev;

    if (adapter->devid != SLIC_1GB_DEVICE_ID) {
        if (hdr->frame_status14 & VRHSTAT_802OE)
            adapter->if_events.oflow802++;
        if (hdr->frame_status14 & VRHSTAT_TPOFLO)
            adapter->if_events.Tprtoflow++;
        if (hdr->frame_status_b14 & VRHSTATB_802UE)
            adapter->if_events.uflow802++;
        if (hdr->frame_status_b14 & VRHSTATB_RCVE) {
            adapter->if_events.rcvearly++;
            netdev->stats.rx_fifo_errors++;
        }
        if (hdr->frame_status_b14 & VRHSTATB_BUFF) {
            adapter->if_events.Bufov++;
            netdev->stats.rx_over_errors++;
        }
        if (hdr->frame_status_b14 & VRHSTATB_CARRE) {
            adapter->if_events.Carre++;
            netdev->stats.tx_carrier_errors++;
        }
        if (hdr->frame_status_b14 & VRHSTATB_LONGE)
            adapter->if_events.Longe++;
        if (hdr->frame_status_b14 & VRHSTATB_PREA)
            adapter->if_events.Invp++;
        if (hdr->frame_status_b14 & VRHSTATB_CRC) {
            adapter->if_events.Crc++;
            netdev->stats.rx_crc_errors++;
        }
        if (hdr->frame_status_b14 & VRHSTATB_DRBL)
            adapter->if_events.Drbl++;
        if (hdr->frame_status_b14 & VRHSTATB_CODE)
            adapter->if_events.Code++;
        if (hdr->frame_status_b14 & VRHSTATB_TPCSUM)
            adapter->if_events.TpCsum++;
        if (hdr->frame_status_b14 & VRHSTATB_TPHLEN)
            adapter->if_events.TpHlen++;
        if (hdr->frame_status_b14 & VRHSTATB_IPCSUM)
            adapter->if_events.IpCsum++;
        if (hdr->frame_status_b14 & VRHSTATB_IPLERR)
            adapter->if_events.IpLen++;
        if (hdr->frame_status_b14 & VRHSTATB_IPHERR)
            adapter->if_events.IpHlen++;
    } else {
        if (hdr->frame_statusGB & VGBSTAT_XPERR) {
            u32 xerr = hdr->frame_statusGB >> VGBSTAT_XERRSHFT;

            if (xerr == VGBSTAT_XCSERR)
                adapter->if_events.TpCsum++;
            if (xerr == VGBSTAT_XUFLOW)
                adapter->if_events.Tprtoflow++;
            if (xerr == VGBSTAT_XHLEN)
                adapter->if_events.TpHlen++;
        }
        if (hdr->frame_statusGB & VGBSTAT_NETERR) {
            u32 nerr =
                (hdr->
                 frame_statusGB >> VGBSTAT_NERRSHFT) &
                VGBSTAT_NERRMSK;
            if (nerr == VGBSTAT_NCSERR)
                adapter->if_events.IpCsum++;
            if (nerr == VGBSTAT_NUFLOW)
                adapter->if_events.IpLen++;
            if (nerr == VGBSTAT_NHLEN)
                adapter->if_events.IpHlen++;
        }
        if (hdr->frame_statusGB & VGBSTAT_LNKERR) {
            u32 lerr = hdr->frame_statusGB & VGBSTAT_LERRMSK;

            if (lerr == VGBSTAT_LDEARLY)
                adapter->if_events.rcvearly++;
            if (lerr == VGBSTAT_LBOFLO)
                adapter->if_events.Bufov++;
            if (lerr == VGBSTAT_LCODERR)
                adapter->if_events.Code++;
            if (lerr == VGBSTAT_LDBLNBL)
                adapter->if_events.Drbl++;
            if (lerr == VGBSTAT_LCRCERR)
                adapter->if_events.Crc++;
            if (lerr == VGBSTAT_LOFLO)
                adapter->if_events.oflow802++;
            if (lerr == VGBSTAT_LUFLO)
                adapter->if_events.uflow802++;
        }
    }
    return;
}

#define TCP_OFFLOAD_FRAME_PUSHFLAG  0x10000000
#define M_FAST_PATH                 0x0040

static void slic_rcv_handler(struct adapter *adapter)
{
    struct net_device *netdev = adapter->netdev;
    struct sk_buff *skb;
    struct slic_rcvbuf *rcvbuf;
    u32 frames = 0;

    while ((skb = slic_rcvqueue_getnext(adapter))) {
        u32 rx_bytes;

        ASSERT(skb->head);
        rcvbuf = (struct slic_rcvbuf *)skb->head;
        adapter->card->events++;
        if (rcvbuf->status & IRHDDR_ERR) {
            adapter->rx_errors++;
            slic_rcv_handle_error(adapter, rcvbuf);
            slic_rcvqueue_reinsert(adapter, skb);
            continue;
        }

        if (!slic_mac_filter(adapter, (struct ether_header *)
                    rcvbuf->data)) {
            slic_rcvqueue_reinsert(adapter, skb);
            continue;
        }
        skb_pull(skb, SLIC_RCVBUF_HEADSIZE);
        rx_bytes = (rcvbuf->length & IRHDDR_FLEN_MSK);
        skb_put(skb, rx_bytes);
        netdev->stats.rx_packets++;
        netdev->stats.rx_bytes += rx_bytes;
#if SLIC_OFFLOAD_IP_CHECKSUM
        skb->ip_summed = CHECKSUM_UNNECESSARY;
#endif

        skb->dev = adapter->netdev;
        skb->protocol = eth_type_trans(skb, skb->dev);
        netif_rx(skb);

        ++frames;
#if SLIC_INTERRUPT_PROCESS_LIMIT
        if (frames >= SLIC_RCVQ_MAX_PROCESS_ISR) {
            adapter->rcv_interrupt_yields++;
            break;
        }
#endif
    }
    adapter->max_isr_rcvs = max(adapter->max_isr_rcvs, frames);
}

static void slic_xmit_complete(struct adapter *adapter)
{
    struct slic_hostcmd *hcmd;
    struct slic_rspbuf *rspbuf;
    u32 frames = 0;
    struct slic_handle_word slic_handle_word;

    do {
        rspbuf = slic_rspqueue_getnext(adapter);
        if (!rspbuf)
            break;
        adapter->xmit_completes++;
        adapter->card->events++;
        /*
         Get the complete host command buffer
        */
        slic_handle_word.handle_token = rspbuf->hosthandle;
        ASSERT(slic_handle_word.handle_index);
        ASSERT(slic_handle_word.handle_index <= SLIC_CMDQ_MAXCMDS);
        hcmd =
            (struct slic_hostcmd *)
            adapter->slic_handles[slic_handle_word.handle_index].
                                    address;
/*      hcmd = (struct slic_hostcmd *) rspbuf->hosthandle; */
        ASSERT(hcmd);
        ASSERT(hcmd->pslic_handle ==
               &adapter->slic_handles[slic_handle_word.handle_index]);
        if (hcmd->type == SLIC_CMD_DUMB) {
            if (hcmd->skb)
                dev_kfree_skb_irq(hcmd->skb);
            slic_cmdq_putdone_irq(adapter, hcmd);
        }
        rspbuf->status = 0;
        rspbuf->hosthandle = 0;
        frames++;
    } while (1);
    adapter->max_isr_xmits = max(adapter->max_isr_xmits, frames);
}

static irqreturn_t slic_interrupt(int irq, void *dev_id)
{
    struct net_device *dev = (struct net_device *)dev_id;
    struct adapter *adapter = netdev_priv(dev);
    u32 isr;

    if ((adapter->pshmem) && (adapter->pshmem->isr)) {
        slic_reg32_write(&adapter->slic_regs->slic_icr,
                 ICR_INT_MASK, FLUSH);
        isr = adapter->isrcopy = adapter->pshmem->isr;
        adapter->pshmem->isr = 0;
        adapter->num_isrs++;
        switch (adapter->card->state) {
        case CARD_UP:
            if (isr & ~ISR_IO) {
                if (isr & ISR_ERR) {
                    adapter->error_interrupts++;
                    if (isr & ISR_RMISS) {
                        int count;
                        int pre_count;
                        int errors;

                        struct slic_rcvqueue *rcvq =
                            &adapter->rcvqueue;

                        adapter->
                            error_rmiss_interrupts++;
                        if (!rcvq->errors)
                            rcv_count = rcvq->count;
                        pre_count = rcvq->count;
                        errors = rcvq->errors;

                        while (rcvq->count <
                               SLIC_RCVQ_FILLTHRESH) {
                            count =
                                slic_rcvqueue_fill
                                (adapter);
                            if (!count)
                                break;
                        }
                    } else if (isr & ISR_XDROP) {
                        dev_err(&dev->dev,
                            "isr & ISR_ERR [%x] "
                            "ISR_XDROP \n", isr);
                    } else {
                        dev_err(&dev->dev,
                            "isr & ISR_ERR [%x]\n",
                            isr);
                    }
                }

                if (isr & ISR_LEVENT) {
                    adapter->linkevent_interrupts++;
                    slic_link_event_handler(adapter);
                }

                if ((isr & ISR_UPC) ||
                    (isr & ISR_UPCERR) || (isr & ISR_UPCBSY)) {
                    adapter->upr_interrupts++;
                    slic_upr_request_complete(adapter, isr);
                }
            }

            if (isr & ISR_RCV) {
                adapter->rcv_interrupts++;
                slic_rcv_handler(adapter);
            }

            if (isr & ISR_CMD) {
                adapter->xmit_interrupts++;
                slic_xmit_complete(adapter);
            }
            break;

        case CARD_DOWN:
            if ((isr & ISR_UPC) ||
                (isr & ISR_UPCERR) || (isr & ISR_UPCBSY)) {
                adapter->upr_interrupts++;
                slic_upr_request_complete(adapter, isr);
            }
            break;

        default:
            break;
        }

        adapter->isrcopy = 0;
        adapter->all_reg_writes += 2;
        adapter->isr_reg_writes++;
        slic_reg32_write(&adapter->slic_regs->slic_isr, 0, FLUSH);
    } else {
        adapter->false_interrupts++;
    }
    return IRQ_HANDLED;
}

#define NORMAL_ETHFRAME     0

static netdev_tx_t slic_xmit_start(struct sk_buff *skb, struct net_device *dev)
{
    struct sliccard *card;
    struct adapter *adapter = netdev_priv(dev);
    struct slic_hostcmd *hcmd = NULL;
    u32 status = 0;
    u32 skbtype = NORMAL_ETHFRAME;
    void *offloadcmd = NULL;

    card = adapter->card;
    ASSERT(card);
    if ((adapter->linkstate != LINK_UP) ||
        (adapter->state != ADAPT_UP) || (card->state != CARD_UP)) {
        status = XMIT_FAIL_LINK_STATE;
        goto xmit_fail;

    } else if (skb->len == 0) {
        status = XMIT_FAIL_ZERO_LENGTH;
        goto xmit_fail;
    }

    if (skbtype == NORMAL_ETHFRAME) {
        hcmd = slic_cmdq_getfree(adapter);
        if (!hcmd) {
            adapter->xmitq_full = 1;
            status = XMIT_FAIL_HOSTCMD_FAIL;
            goto xmit_fail;
        }
        ASSERT(hcmd->pslic_handle);
        ASSERT(hcmd->cmd64.hosthandle ==
               hcmd->pslic_handle->token.handle_token);
        hcmd->skb = skb;
        hcmd->busy = 1;
        hcmd->type = SLIC_CMD_DUMB;
        if (skbtype == NORMAL_ETHFRAME)
            slic_xmit_build_request(adapter, hcmd, skb);
    }
    dev->stats.tx_packets++;
    dev->stats.tx_bytes += skb->len;

#ifdef DEBUG_DUMP
    if (adapter->kill_card) {
        struct slic_host64_cmd ihcmd;

        ihcmd = &hcmd->cmd64;

        ihcmd->flags |= 0x40;
        adapter->kill_card = 0; /* only do this once */
    }
#endif
    if (hcmd->paddrh == 0) {
        slic_reg32_write(&adapter->slic_regs->slic_cbar,
                 (hcmd->paddrl | hcmd->cmdsize), DONT_FLUSH);
    } else {
        slic_reg64_write(adapter, &adapter->slic_regs->slic_cbar64,
                 (hcmd->paddrl | hcmd->cmdsize),
                 &adapter->slic_regs->slic_addr_upper,
                 hcmd->paddrh, DONT_FLUSH);
    }
xmit_done:
    return NETDEV_TX_OK;
xmit_fail:
    slic_xmit_fail(adapter, skb, offloadcmd, skbtype, status);
    goto xmit_done;
}


static void slic_adapter_freeresources(struct adapter *adapter)
{
    slic_init_cleanup(adapter);
    adapter->error_interrupts = 0;
    adapter->rcv_interrupts = 0;
    adapter->xmit_interrupts = 0;
    adapter->linkevent_interrupts = 0;
    adapter->upr_interrupts = 0;
    adapter->num_isrs = 0;
    adapter->xmit_completes = 0;
    adapter->rcv_broadcasts = 0;
    adapter->rcv_multicasts = 0;
    adapter->rcv_unicasts = 0;
}

static int slic_adapter_allocresources(struct adapter *adapter)
{
    if (!adapter->intrregistered) {
        int retval;

        spin_unlock_irqrestore(&slic_global.driver_lock.lock,
                    slic_global.driver_lock.flags);

        retval = request_irq(adapter->netdev->irq,
                     &slic_interrupt,
                     IRQF_SHARED,
                     adapter->netdev->name, adapter->netdev);

        spin_lock_irqsave(&slic_global.driver_lock.lock,
                    slic_global.driver_lock.flags);

        if (retval) {
            dev_err(&adapter->netdev->dev,
                "request_irq (%s) FAILED [%x]\n",
                adapter->netdev->name, retval);
            return retval;
        }
        adapter->intrregistered = 1;
    }
    return 0;
}

/*
 *  slic_if_init
 *
 *  Perform initialization of our slic interface.
 *
 */
static int slic_if_init(struct adapter *adapter)
{
    struct sliccard *card = adapter->card;
    struct net_device *dev = adapter->netdev;
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;
    struct slic_shmem *pshmem;
    int rc;

    ASSERT(card);

    /* adapter should be down at this point */
    if (adapter->state != ADAPT_DOWN) {
        dev_err(&dev->dev, "%s: adapter->state != ADAPT_DOWN\n",
            __func__);
        rc = -EIO;
        goto err;
    }
    ASSERT(adapter->linkstate == LINK_DOWN);

    adapter->devflags_prev = dev->flags;
    adapter->macopts = MAC_DIRECTED;
    if (dev->flags) {
        if (dev->flags & IFF_BROADCAST)
            adapter->macopts |= MAC_BCAST;
        if (dev->flags & IFF_PROMISC)
            adapter->macopts |= MAC_PROMISC;
        if (dev->flags & IFF_ALLMULTI)
            adapter->macopts |= MAC_ALLMCAST;
        if (dev->flags & IFF_MULTICAST)
            adapter->macopts |= MAC_MCAST;
    }
    rc = slic_adapter_allocresources(adapter);
    if (rc) {
        dev_err(&dev->dev,
            "%s: slic_adapter_allocresources FAILED %x\n",
            __func__, rc);
        slic_adapter_freeresources(adapter);
        goto err;
    }

    if (!adapter->queues_initialized) {
        if ((rc = slic_rspqueue_init(adapter)))
            goto err;
        if ((rc = slic_cmdq_init(adapter)))
            goto err;
        if ((rc = slic_rcvqueue_init(adapter)))
            goto err;
        adapter->queues_initialized = 1;
    }

    slic_reg32_write(&slic_regs->slic_icr, ICR_INT_OFF, FLUSH);
    mdelay(1);

    if (!adapter->isp_initialized) {
        pshmem = (struct slic_shmem *)adapter->phys_shmem;

        spin_lock_irqsave(&adapter->bit64reglock.lock,
                    adapter->bit64reglock.flags);

#if BITS_PER_LONG == 64
        slic_reg32_write(&slic_regs->slic_addr_upper,
                 SLIC_GET_ADDR_HIGH(&pshmem->isr), DONT_FLUSH);
        slic_reg32_write(&slic_regs->slic_isp,
                 SLIC_GET_ADDR_LOW(&pshmem->isr), FLUSH);
#else
        slic_reg32_write(&slic_regs->slic_addr_upper, 0, DONT_FLUSH);
        slic_reg32_write(&slic_regs->slic_isp, (u32)&pshmem->isr, FLUSH);
#endif
        spin_unlock_irqrestore(&adapter->bit64reglock.lock,
                    adapter->bit64reglock.flags);
        adapter->isp_initialized = 1;
    }

    adapter->state = ADAPT_UP;
    if (!card->loadtimerset) {
        init_timer(&card->loadtimer);
        card->loadtimer.expires =
            jiffies + (SLIC_LOADTIMER_PERIOD * HZ);
        card->loadtimer.data = (ulong) card;
        card->loadtimer.function = &slic_timer_load_check;
        add_timer(&card->loadtimer);

        card->loadtimerset = 1;
    }

    if (!adapter->pingtimerset) {
        init_timer(&adapter->pingtimer);
        adapter->pingtimer.expires =
            jiffies + (PING_TIMER_INTERVAL * HZ);
        adapter->pingtimer.data = (ulong) dev;
        adapter->pingtimer.function = &slic_timer_ping;
        add_timer(&adapter->pingtimer);
        adapter->pingtimerset = 1;
        adapter->card->pingstatus = ISR_PINGMASK;
    }

    /*
     *    clear any pending events, then enable interrupts
     */
    adapter->isrcopy = 0;
    adapter->pshmem->isr = 0;
    slic_reg32_write(&slic_regs->slic_isr, 0, FLUSH);
    slic_reg32_write(&slic_regs->slic_icr, ICR_INT_ON, FLUSH);

    slic_link_config(adapter, LINK_AUTOSPEED, LINK_AUTOD);
    slic_link_event_handler(adapter);

err:
    return rc;
}

static int slic_entry_open(struct net_device *dev)
{
    struct adapter *adapter = netdev_priv(dev);
    struct sliccard *card = adapter->card;
    int status;

    ASSERT(adapter);
    ASSERT(card);

    netif_stop_queue(adapter->netdev);

    spin_lock_irqsave(&slic_global.driver_lock.lock,
                slic_global.driver_lock.flags);
    if (!adapter->activated) {
        card->adapters_activated++;
        slic_global.num_slic_ports_active++;
        adapter->activated = 1;
    }
    status = slic_if_init(adapter);

    if (status != 0) {
        if (adapter->activated) {
            card->adapters_activated--;
            slic_global.num_slic_ports_active--;
            adapter->activated = 0;
        }
        goto spin_unlock;
    }
    if (!card->master)
        card->master = adapter;

spin_unlock:
    spin_unlock_irqrestore(&slic_global.driver_lock.lock,
                   slic_global.driver_lock.flags);
    return status;
}

static void slic_card_cleanup(struct sliccard *card)
{
    if (card->loadtimerset) {
        card->loadtimerset = 0;
        del_timer(&card->loadtimer);
    }

    slic_debug_card_destroy(card);

    kfree(card);
}

static void __devexit slic_entry_remove(struct pci_dev *pcidev)
{
    struct net_device *dev = pci_get_drvdata(pcidev);
    u32 mmio_start = 0;
    uint mmio_len = 0;
    struct adapter *adapter = netdev_priv(dev);
    struct sliccard *card;
    struct mcast_address *mcaddr, *mlist;

    slic_adapter_freeresources(adapter);
    slic_unmap_mmio_space(adapter);
    unregister_netdev(dev);

    mmio_start = pci_resource_start(pcidev, 0);
    mmio_len = pci_resource_len(pcidev, 0);

    release_mem_region(mmio_start, mmio_len);

    iounmap((void __iomem *)dev->base_addr);
    /* free multicast addresses */
    mlist = adapter->mcastaddrs;
    while (mlist) {
        mcaddr = mlist;
        mlist = mlist->next;
        kfree(mcaddr);
    }
    ASSERT(adapter->card);
    card = adapter->card;
    ASSERT(card->adapters_allocated);
    card->adapters_allocated--;
    adapter->allocated = 0;
    if (!card->adapters_allocated) {
        struct sliccard *curr_card = slic_global.slic_card;
        if (curr_card == card) {
            slic_global.slic_card = card->next;
        } else {
            while (curr_card->next != card)
                curr_card = curr_card->next;
            ASSERT(curr_card);
            curr_card->next = card->next;
        }
        ASSERT(slic_global.num_slic_cards);
        slic_global.num_slic_cards--;
        slic_card_cleanup(card);
    }
    free_netdev(dev);
    pci_release_regions(pcidev);
    pci_disable_device(pcidev);
}

static int slic_entry_halt(struct net_device *dev)
{
    struct adapter *adapter = netdev_priv(dev);
    struct sliccard *card = adapter->card;
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;

    spin_lock_irqsave(&slic_global.driver_lock.lock,
                slic_global.driver_lock.flags);
    ASSERT(card);
    netif_stop_queue(adapter->netdev);
    adapter->state = ADAPT_DOWN;
    adapter->linkstate = LINK_DOWN;
    adapter->upr_list = NULL;
    adapter->upr_busy = 0;
    adapter->devflags_prev = 0;
    ASSERT(card->adapter[adapter->cardindex] == adapter);
    slic_reg32_write(&slic_regs->slic_icr, ICR_INT_OFF, FLUSH);
    adapter->all_reg_writes++;
    adapter->icr_reg_writes++;
    slic_config_clear(adapter);
    if (adapter->activated) {
        card->adapters_activated--;
        slic_global.num_slic_ports_active--;
        adapter->activated = 0;
    }
#ifdef AUTOMATIC_RESET
    slic_reg32_write(&slic_regs->slic_reset_iface, 0, FLUSH);
#endif
    /*
     *  Reset the adapter's cmd queues
     */
    slic_cmdq_reset(adapter);

#ifdef AUTOMATIC_RESET
    if (!card->adapters_activated)
        slic_card_init(card, adapter);
#endif

    spin_unlock_irqrestore(&slic_global.driver_lock.lock,
                slic_global.driver_lock.flags);
    return 0;
}

static struct net_device_stats *slic_get_stats(struct net_device *dev)
{
    struct adapter *adapter = netdev_priv(dev);

    ASSERT(adapter);
    dev->stats.collisions = adapter->slic_stats.iface.xmit_collisions;
    dev->stats.rx_errors = adapter->slic_stats.iface.rcv_errors;
    dev->stats.tx_errors = adapter->slic_stats.iface.xmt_errors;
    dev->stats.rx_missed_errors = adapter->slic_stats.iface.rcv_discards;
    dev->stats.tx_heartbeat_errors = 0;
    dev->stats.tx_aborted_errors = 0;
    dev->stats.tx_window_errors = 0;
    dev->stats.tx_fifo_errors = 0;
    dev->stats.rx_frame_errors = 0;
    dev->stats.rx_length_errors = 0;

    return &dev->stats;
}

static int slic_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
    struct adapter *adapter = netdev_priv(dev);
    struct ethtool_cmd edata;
    struct ethtool_cmd ecmd;
    u32 data[7];
    u32 intagg;

    ASSERT(rq);
    switch (cmd) {
    case SIOCSLICSETINTAGG:
        if (copy_from_user(data, rq->ifr_data, 28))
            return -EFAULT;
        intagg = data[0];
        dev_err(&dev->dev, "%s: set interrupt aggregation to %d\n",
            __func__, intagg);
        slic_intagg_set(adapter, intagg);
        return 0;

#ifdef SLIC_TRACE_DUMP_ENABLED
    case SIOCSLICTRACEDUMP:
        {
            u32 value;
            DBG_IOCTL("slic_ioctl  SIOCSLIC_TRACE_DUMP\n");

            if (copy_from_user(data, rq->ifr_data, 28)) {
                PRINT_ERROR
                    ("slic: copy_from_user FAILED getting initial simba param\n");
                return -EFAULT;
            }

            value = data[0];
            if (tracemon_request == SLIC_DUMP_DONE) {
                PRINT_ERROR
                    ("ATK Diagnostic Trace Dump Requested\n");
                tracemon_request = SLIC_DUMP_REQUESTED;
                tracemon_request_type = value;
                tracemon_timestamp = jiffies;
            } else if ((tracemon_request == SLIC_DUMP_REQUESTED) ||
                   (tracemon_request ==
                    SLIC_DUMP_IN_PROGRESS)) {
                PRINT_ERROR
                    ("ATK Diagnostic Trace Dump Requested but already in progress... ignore\n");
            } else {
                PRINT_ERROR
                    ("ATK Diagnostic Trace Dump Requested\n");
                tracemon_request = SLIC_DUMP_REQUESTED;
                tracemon_request_type = value;
                tracemon_timestamp = jiffies;
            }
            return 0;
        }
#endif
    case SIOCETHTOOL:
        ASSERT(adapter);
        if (copy_from_user(&ecmd, rq->ifr_data, sizeof(ecmd)))
            return -EFAULT;

        if (ecmd.cmd == ETHTOOL_GSET) {
            edata.supported = (SUPPORTED_10baseT_Half |
                       SUPPORTED_10baseT_Full |
                       SUPPORTED_100baseT_Half |
                       SUPPORTED_100baseT_Full |
                       SUPPORTED_Autoneg | SUPPORTED_MII);
            edata.port = PORT_MII;
            edata.transceiver = XCVR_INTERNAL;
            edata.phy_address = 0;
            if (adapter->linkspeed == LINK_100MB)
                edata.speed = SPEED_100;
            else if (adapter->linkspeed == LINK_10MB)
                edata.speed = SPEED_10;
            else
                edata.speed = 0;

            if (adapter->linkduplex == LINK_FULLD)
                edata.duplex = DUPLEX_FULL;
            else
                edata.duplex = DUPLEX_HALF;

            edata.autoneg = AUTONEG_ENABLE;
            edata.maxtxpkt = 1;
            edata.maxrxpkt = 1;
            if (copy_to_user(rq->ifr_data, &edata, sizeof(edata)))
                return -EFAULT;

        } else if (ecmd.cmd == ETHTOOL_SSET) {
            if (!capable(CAP_NET_ADMIN))
                return -EPERM;

            if (adapter->linkspeed == LINK_100MB)
                edata.speed = SPEED_100;
            else if (adapter->linkspeed == LINK_10MB)
                edata.speed = SPEED_10;
            else
                edata.speed = 0;

            if (adapter->linkduplex == LINK_FULLD)
                edata.duplex = DUPLEX_FULL;
            else
                edata.duplex = DUPLEX_HALF;

            edata.autoneg = AUTONEG_ENABLE;
            edata.maxtxpkt = 1;
            edata.maxrxpkt = 1;
            if ((ecmd.speed != edata.speed) ||
                (ecmd.duplex != edata.duplex)) {
                u32 speed;
                u32 duplex;

                if (ecmd.speed == SPEED_10)
                    speed = 0;
                else
                    speed = PCR_SPEED_100;
                if (ecmd.duplex == DUPLEX_FULL)
                    duplex = PCR_DUPLEX_FULL;
                else
                    duplex = 0;
                slic_link_config(adapter, speed, duplex);
                slic_link_event_handler(adapter);
            }
        }
        return 0;
    default:
        return -EOPNOTSUPP;
    }
}

static void slic_config_pci(struct pci_dev *pcidev)
{
    u16 pci_command;
    u16 new_command;

    pci_read_config_word(pcidev, PCI_COMMAND, &pci_command);

    new_command = pci_command | PCI_COMMAND_MASTER
        | PCI_COMMAND_MEMORY
        | PCI_COMMAND_INVALIDATE
        | PCI_COMMAND_PARITY | PCI_COMMAND_SERR | PCI_COMMAND_FAST_BACK;
    if (pci_command != new_command)
        pci_write_config_word(pcidev, PCI_COMMAND, new_command);
}

static int slic_card_init(struct sliccard *card, struct adapter *adapter)
{
    __iomem struct slic_regs *slic_regs = adapter->slic_regs;
    struct slic_eeprom *peeprom;
    struct oslic_eeprom *pOeeprom;
    dma_addr_t phys_config;
    u32 phys_configh;
    u32 phys_configl;
    u32 i = 0;
    struct slic_shmem *pshmem;
    int status;
    uint macaddrs = card->card_size;
    ushort eecodesize;
    ushort dramsize;
    ushort ee_chksum;
    ushort calc_chksum;
    struct slic_config_mac *pmac;
    unsigned char fruformat;
    unsigned char oemfruformat;
    struct atk_fru *patkfru;
    union oemfru *poemfru;

    /* Reset everything except PCI configuration space */
    slic_soft_reset(adapter);

    /* Download the microcode */
    status = slic_card_download(adapter);

    if (status != 0) {
        dev_err(&adapter->pcidev->dev,
            "download failed bus %d slot %d\n",
            adapter->busnumber, adapter->slotnumber);
        return status;
    }

    if (!card->config_set) {
        peeprom = pci_alloc_consistent(adapter->pcidev,
                           sizeof(struct slic_eeprom),
                           &phys_config);

        phys_configl = SLIC_GET_ADDR_LOW(phys_config);
        phys_configh = SLIC_GET_ADDR_HIGH(phys_config);

        if (!peeprom) {
            dev_err(&adapter->pcidev->dev,
                "eeprom read failed to get memory "
                "bus %d slot %d\n", adapter->busnumber,
                adapter->slotnumber);
            return -ENOMEM;
        } else {
            memset(peeprom, 0, sizeof(struct slic_eeprom));
        }
        slic_reg32_write(&slic_regs->slic_icr, ICR_INT_OFF, FLUSH);
        mdelay(1);
        pshmem = (struct slic_shmem *)adapter->phys_shmem;

        spin_lock_irqsave(&adapter->bit64reglock.lock,
                    adapter->bit64reglock.flags);
        slic_reg32_write(&slic_regs->slic_addr_upper, 0, DONT_FLUSH);
        slic_reg32_write(&slic_regs->slic_isp,
                 SLIC_GET_ADDR_LOW(&pshmem->isr), FLUSH);
        spin_unlock_irqrestore(&adapter->bit64reglock.lock,
                    adapter->bit64reglock.flags);

        slic_config_get(adapter, phys_configl, phys_configh);

        for (;;) {
            if (adapter->pshmem->isr) {
                if (adapter->pshmem->isr & ISR_UPC) {
                    adapter->pshmem->isr = 0;
                    slic_reg64_write(adapter,
                        &slic_regs->slic_isp, 0,
                        &slic_regs->slic_addr_upper,
                        0, FLUSH);
                    slic_reg32_write(&slic_regs->slic_isr,
                             0, FLUSH);

                    slic_upr_request_complete(adapter, 0);
                    break;
                } else {
                    adapter->pshmem->isr = 0;
                    slic_reg32_write(&slic_regs->slic_isr,
                             0, FLUSH);
                }
            } else {
                mdelay(1);
                i++;
                if (i > 5000) {
                    dev_err(&adapter->pcidev->dev,
                        "%d config data fetch timed out!\n",
                        adapter->port);
                    slic_reg64_write(adapter,
                        &slic_regs->slic_isp, 0,
                        &slic_regs->slic_addr_upper,
                        0, FLUSH);
                    return -EINVAL;
                }
            }
        }

        switch (adapter->devid) {
        /* Oasis card */
        case SLIC_2GB_DEVICE_ID:
            /* extract EEPROM data and pointers to EEPROM data */
            pOeeprom = (struct oslic_eeprom *) peeprom;
            eecodesize = pOeeprom->EecodeSize;
            dramsize = pOeeprom->DramSize;
            pmac = pOeeprom->MacInfo;
            fruformat = pOeeprom->FruFormat;
            patkfru = &pOeeprom->AtkFru;
            oemfruformat = pOeeprom->OemFruFormat;
            poemfru = &pOeeprom->OemFru;
            macaddrs = 2;
            /* Minor kludge for Oasis card
                 get 2 MAC addresses from the
                 EEPROM to ensure that function 1
                 gets the Port 1 MAC address */
            break;
        default:
            /* extract EEPROM data and pointers to EEPROM data */
            eecodesize = peeprom->EecodeSize;
            dramsize = peeprom->DramSize;
            pmac = peeprom->u2.mac.MacInfo;
            fruformat = peeprom->FruFormat;
            patkfru = &peeprom->AtkFru;
            oemfruformat = peeprom->OemFruFormat;
            poemfru = &peeprom->OemFru;
            break;
        }

        card->config.EepromValid = false;

        /*  see if the EEPROM is valid by checking it's checksum */
        if ((eecodesize <= MAX_EECODE_SIZE) &&
            (eecodesize >= MIN_EECODE_SIZE)) {

            ee_chksum =
                *(u16 *) ((char *) peeprom + (eecodesize - 2));
            /*
                calculate the EEPROM checksum
            */
            calc_chksum =
                ~slic_eeprom_cksum((char *) peeprom,
                           (eecodesize - 2));
            /*
                if the ucdoe chksum flag bit worked,
                we wouldn't need this shit
            */
            if (ee_chksum == calc_chksum)
                card->config.EepromValid = true;
        }
        /*  copy in the DRAM size */
        card->config.DramSize = dramsize;

        /*  copy in the MAC address(es) */
        for (i = 0; i < macaddrs; i++) {
            memcpy(&card->config.MacInfo[i],
                   &pmac[i], sizeof(struct slic_config_mac));
        }

        /*  copy the Alacritech FRU information */
        card->config.FruFormat = fruformat;
        memcpy(&card->config.AtkFru, patkfru,
                        sizeof(struct atk_fru));

        pci_free_consistent(adapter->pcidev,
                    sizeof(struct slic_eeprom),
                    peeprom, phys_config);

        if ((!card->config.EepromValid) &&
            (adapter->reg_params.fail_on_bad_eeprom)) {
            slic_reg64_write(adapter, &slic_regs->slic_isp, 0,
                     &slic_regs->slic_addr_upper,
                     0, FLUSH);
            dev_err(&adapter->pcidev->dev,
                "unsupported CONFIGURATION EEPROM invalid\n");
            return -EINVAL;
        }

        card->config_set = 1;
    }

    if (slic_card_download_gbrcv(adapter)) {
        dev_err(&adapter->pcidev->dev,
            "unable to download GB receive microcode\n");
        return -EINVAL;
    }

    if (slic_global.dynamic_intagg)
        slic_intagg_set(adapter, 0);
    else
        slic_intagg_set(adapter, intagg_delay);

    /*
     *  Initialize ping status to "ok"
     */
    card->pingstatus = ISR_PINGMASK;

    /*
     * Lastly, mark our card state as up and return success
     */
    card->state = CARD_UP;
    card->reset_in_progress = 0;

    return 0;
}

static void slic_init_driver(void)
{
    if (slic_first_init) {
        slic_first_init = 0;
        spin_lock_init(&slic_global.driver_lock.lock);
        slic_debug_init();
    }
}

static void slic_init_adapter(struct net_device *netdev,
                  struct pci_dev *pcidev,
                  const struct pci_device_id *pci_tbl_entry,
                  void __iomem *memaddr, int chip_idx)
{
    ushort index;
    struct slic_handle *pslic_handle;
    struct adapter *adapter = netdev_priv(netdev);

/*  adapter->pcidev = pcidev;*/
    adapter->vendid = pci_tbl_entry->vendor;
    adapter->devid = pci_tbl_entry->device;
    adapter->subsysid = pci_tbl_entry->subdevice;
    adapter->busnumber = pcidev->bus->number;
    adapter->slotnumber = ((pcidev->devfn >> 3) & 0x1F);
    adapter->functionnumber = (pcidev->devfn & 0x7);
    adapter->memorylength = pci_resource_len(pcidev, 0);
    adapter->slic_regs = (__iomem struct slic_regs *)memaddr;
    adapter->irq = pcidev->irq;
/*  adapter->netdev = netdev;*/
    adapter->next_netdevice = head_netdevice;
    head_netdevice = netdev;
    adapter->chipid = chip_idx;
    adapter->port = 0;  /*adapter->functionnumber;*/
    adapter->cardindex = adapter->port;
    adapter->memorybase = memaddr;
    spin_lock_init(&adapter->upr_lock.lock);
    spin_lock_init(&adapter->bit64reglock.lock);
    spin_lock_init(&adapter->adapter_lock.lock);
    spin_lock_init(&adapter->reset_lock.lock);
    spin_lock_init(&adapter->handle_lock.lock);

    adapter->card_size = 1;
    /*
      Initialize slic_handle array
    */
    ASSERT(SLIC_CMDQ_MAXCMDS <= 0xFFFF);
    /*
     Start with 1.  0 is an invalid host handle.
    */
    for (index = 1, pslic_handle = &adapter->slic_handles[1];
         index < SLIC_CMDQ_MAXCMDS; index++, pslic_handle++) {

        pslic_handle->token.handle_index = index;
        pslic_handle->type = SLIC_HANDLE_FREE;
        pslic_handle->next = adapter->pfree_slic_handles;
        adapter->pfree_slic_handles = pslic_handle;
    }
    adapter->pshmem = (struct slic_shmem *)
                    pci_alloc_consistent(adapter->pcidev,
                    sizeof(struct slic_shmem),
                    &adapter->
                    phys_shmem);
    ASSERT(adapter->pshmem);

    if (adapter->pshmem)
        memset(adapter->pshmem, 0, sizeof(struct slic_shmem));
}

static const struct net_device_ops slic_netdev_ops = {
    .ndo_open       = slic_entry_open,
    .ndo_stop       = slic_entry_halt,
    .ndo_start_xmit     = slic_xmit_start,
    .ndo_do_ioctl       = slic_ioctl,
    .ndo_set_mac_address    = slic_mac_set_address,
    .ndo_get_stats      = slic_get_stats,
    .ndo_set_rx_mode    = slic_mcast_set_list,
    .ndo_validate_addr  = eth_validate_addr,
    .ndo_change_mtu     = eth_change_mtu,
};

static u32 slic_card_locate(struct adapter *adapter)
{
    struct sliccard *card = slic_global.slic_card;
    struct physcard *physcard = slic_global.phys_card;
    ushort card_hostid;
    u16 __iomem *hostid_reg;
    uint i;
    uint rdhostid_offset = 0;

    switch (adapter->devid) {
    case SLIC_2GB_DEVICE_ID:
        rdhostid_offset = SLIC_RDHOSTID_2GB;
        break;
    case SLIC_1GB_DEVICE_ID:
        rdhostid_offset = SLIC_RDHOSTID_1GB;
        break;
    default:
        return -ENODEV;
    }

    hostid_reg =
        (u16 __iomem *) (((u8 __iomem *) (adapter->slic_regs)) +
        rdhostid_offset);

    /* read the 16 bit hostid from SRAM */
    card_hostid = (ushort) readw(hostid_reg);

    /* Initialize a new card structure if need be */
    if (card_hostid == SLIC_HOSTID_DEFAULT) {
        card = kzalloc(sizeof(struct sliccard), GFP_KERNEL);
        if (card == NULL)
            return -ENOMEM;

        card->next = slic_global.slic_card;
        slic_global.slic_card = card;
        card->busnumber = adapter->busnumber;
        card->slotnumber = adapter->slotnumber;

        /* Find an available cardnum */
        for (i = 0; i < SLIC_MAX_CARDS; i++) {
            if (slic_global.cardnuminuse[i] == 0) {
                slic_global.cardnuminuse[i] = 1;
                card->cardnum = i;
                break;
            }
        }
        slic_global.num_slic_cards++;

        slic_debug_card_create(card);
    } else {
        /* Card exists, find the card this adapter belongs to */
        while (card) {
            if (card->cardnum == card_hostid)
                break;
            card = card->next;
        }
    }

    ASSERT(card);
    if (!card)
        return -ENXIO;
    /* Put the adapter in the card's adapter list */
    ASSERT(card->adapter[adapter->port] == NULL);
    if (!card->adapter[adapter->port]) {
        card->adapter[adapter->port] = adapter;
        adapter->card = card;
    }

    card->card_size = 1;    /* one port per *logical* card */

    while (physcard) {
        for (i = 0; i < SLIC_MAX_PORTS; i++) {
            if (!physcard->adapter[i])
                continue;
            else
                break;
        }
        ASSERT(i != SLIC_MAX_PORTS);
        if (physcard->adapter[i]->slotnumber == adapter->slotnumber)
            break;
        physcard = physcard->next;
    }
    if (!physcard) {
        /* no structure allocated for this physical card yet */
        physcard = kzalloc(sizeof(struct physcard), GFP_ATOMIC);
        ASSERT(physcard);

        physcard->next = slic_global.phys_card;
        slic_global.phys_card = physcard;
        physcard->adapters_allocd = 1;
    } else {
        physcard->adapters_allocd++;
    }
    /* Note - this is ZERO relative */
    adapter->physport = physcard->adapters_allocd - 1;

    ASSERT(physcard->adapter[adapter->physport] == NULL);
    physcard->adapter[adapter->physport] = adapter;
    adapter->physcard = physcard;

    return 0;
}

static int __devinit slic_entry_probe(struct pci_dev *pcidev,
                   const struct pci_device_id *pci_tbl_entry)
{
    static int cards_found;
    static int did_version;
    int err = -ENODEV;
    struct net_device *netdev;
    struct adapter *adapter;
    void __iomem *memmapped_ioaddr = NULL;
    u32 status = 0;
    ulong mmio_start = 0;
    ulong mmio_len = 0;
    struct sliccard *card = NULL;
    int pci_using_dac = 0;

    slic_global.dynamic_intagg = dynamic_intagg;

    err = pci_enable_device(pcidev);

    if (err)
        return err;

    if (slic_debug > 0 && did_version++ == 0) {
        printk(KERN_DEBUG "%s\n", slic_banner);
        printk(KERN_DEBUG "%s\n", slic_proc_version);
    }

    if (!pci_set_dma_mask(pcidev, DMA_BIT_MASK(64))) {
        pci_using_dac = 1;
        if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) {
            dev_err(&pcidev->dev, "unable to obtain 64-bit DMA for "
                    "consistent allocations\n");
            goto err_out_disable_pci;
        }
    } else if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(32))) {
        pci_using_dac = 0;
        pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
    } else {
        dev_err(&pcidev->dev, "no usable DMA configuration\n");
        goto err_out_disable_pci;
    }

    err = pci_request_regions(pcidev, DRV_NAME);
    if (err) {
        dev_err(&pcidev->dev, "can't obtain PCI resources\n");
        goto err_out_disable_pci;
    }

    pci_set_master(pcidev);

    netdev = alloc_etherdev(sizeof(struct adapter));
    if (!netdev) {
        err = -ENOMEM;
        goto err_out_exit_slic_probe;
    }

    SET_NETDEV_DEV(netdev, &pcidev->dev);

    pci_set_drvdata(pcidev, netdev);
    adapter = netdev_priv(netdev);
    adapter->netdev = netdev;
    adapter->pcidev = pcidev;
    if (pci_using_dac)
        netdev->features |= NETIF_F_HIGHDMA;

    mmio_start = pci_resource_start(pcidev, 0);
    mmio_len = pci_resource_len(pcidev, 0);


/*  memmapped_ioaddr =  (u32)ioremap_nocache(mmio_start, mmio_len);*/
    memmapped_ioaddr = ioremap(mmio_start, mmio_len);
    if (!memmapped_ioaddr) {
        dev_err(&pcidev->dev, "cannot remap MMIO region %lx @ %lx\n",
            mmio_len, mmio_start);
        goto err_out_free_netdev;
    }

    slic_config_pci(pcidev);

    slic_init_driver();

    slic_init_adapter(netdev,
              pcidev, pci_tbl_entry, memmapped_ioaddr, cards_found);

    status = slic_card_locate(adapter);
    if (status) {
        dev_err(&pcidev->dev, "cannot locate card\n");
        goto err_out_free_mmio_region;
    }

    card = adapter->card;

    if (!adapter->allocated) {
        card->adapters_allocated++;
        adapter->allocated = 1;
    }

    status = slic_card_init(card, adapter);

    if (status != 0) {
        card->state = CARD_FAIL;
        adapter->state = ADAPT_FAIL;
        adapter->linkstate = LINK_DOWN;
        dev_err(&pcidev->dev, "FAILED status[%x]\n", status);
    } else {
        slic_adapter_set_hwaddr(adapter);
    }

    netdev->base_addr = (unsigned long)adapter->memorybase;
    netdev->irq = adapter->irq;
    netdev->netdev_ops = &slic_netdev_ops;

    slic_debug_adapter_create(adapter);

    strcpy(netdev->name, "eth%d");
    err = register_netdev(netdev);
    if (err) {
        dev_err(&pcidev->dev, "Cannot register net device, aborting.\n");
        goto err_out_unmap;
    }

    cards_found++;

    return status;

err_out_unmap:
    iounmap(memmapped_ioaddr);
err_out_free_mmio_region:
    release_mem_region(mmio_start, mmio_len);
err_out_free_netdev:
    free_netdev(netdev);
err_out_exit_slic_probe:
    pci_release_regions(pcidev);
err_out_disable_pci:
    pci_disable_device(pcidev);
    return err;
}

static struct pci_driver slic_driver = {
    .name = DRV_NAME,
    .id_table = slic_pci_tbl,
    .probe = slic_entry_probe,
    .remove = __devexit_p(slic_entry_remove),
};

static int __init slic_module_init(void)
{
    slic_init_driver();

    if (debug >= 0 && slic_debug != debug)
        printk(KERN_DEBUG KBUILD_MODNAME ": debug level is %d.\n",
               debug);
    if (debug >= 0)
        slic_debug = debug;

    return pci_register_driver(&slic_driver);
}

static void __exit slic_module_cleanup(void)
{
    pci_unregister_driver(&slic_driver);
    slic_debug_cleanup();
}

module_init(slic_module_init);
module_exit(slic_module_cleanup);